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https://en.wikipedia.org/wiki/Xanthosine%20triphosphate | Xanthosine 5'-triphosphate (XTP) is a nucleotide that is not produced by - and has no known function in - living cells. Uses of XTP are, in general, limited to experimental procedures on enzymes that bind other nucleotides. Deamination of purine bases can result in accumulation of such nucleotides as ITP, dITP, XTP, and dXTP.
References
See also
Xanthosine
Xanthosine monophosphate
Nucleotides
Phosphate esters
Xanthines |
https://en.wikipedia.org/wiki/Lundquist%20number | In plasma physics, the Lundquist number (denoted by ) is a dimensionless ratio which compares the timescale of an Alfvén wave crossing to the timescale of resistive diffusion. It is a special case of the magnetic Reynolds number when the Alfvén velocity is the typical velocity scale of the system, and is given by
where is the typical length scale of the system, is the magnetic diffusivity and is the Alfvén velocity of the plasma.
High Lundquist numbers indicate highly conducting plasmas, while low Lundquist numbers indicate more resistive plasmas. Laboratory plasma experiments typically have Lundquist numbers between , while in astrophysical situations the Lundquist number can be greater than . Considerations of Lundquist number are especially important in magnetic reconnection.
See also
Magnetic Prandtl number
Péclet number
Stuart number
References
Plasma parameters |
https://en.wikipedia.org/wiki/Karl%20Albert%20Hasselbalch | Karl Albert Hasselbalch (; 1 November 1874 – 19 September 1962) was a Danish physician and chemist known for his work on the Henderson–Hasselbalch equation.
Early life and education
Hasselbalch was born in Åstrup, near Hjørring, Denmark on 1 November 1874. Hasselbalch received his medical degree in 1898 and his doctorate in 1899 for his thesis on the respiratory metabolism in the chicken embryo.
Career
Hasselbalch was a pioneer in the use of pH measurement in medicine (with Christian Bohr, father of Niels Bohr), and he described how the affinity of blood for oxygen was dependent on the concentration of carbon dioxide. He was also first to determine the pH of blood. In 1916, he converted the 1908 equation of Lawrence Joseph Henderson to logarithmic form, which is now known as the Henderson–Hasselbalch equation.
References
Danish scientists
1874 births
1962 deaths |
https://en.wikipedia.org/wiki/Soil%20health | Soil health is a state of a soil meeting its range of ecosystem functions as appropriate to its environment. In more colloquial terms, the health of soil arises from favorable interactions of all soil components (living and non-living) that belong together, as in microbiota, plants and animals. It is possible that a soil can be healthy in terms of ecosystem functioning but not necessarily serve crop production or human nutrition directly, hence the scientific debate on terms and measurements.
Soil health testing is pursued as an assessment of this status but tends to be confined largely to agronomic objectives, for obvious reasons. Soil health depends on soil biodiversity (with a robust soil biota), and it can be improved via soil management, especially by care to keep protective living covers on the soil and by natural (carbon-containing) soil amendments. Inorganic fertilizers do not necessarily damage soil health if 1) used at appropriate and not excessive rates and 2) if they bring about a general improvement of overall plant growth which contributes more carbon-containing residues to the soil.
Aspects
The term soil health is used to describe the state of a soil in:
Sustaining plant and animal productivity (agronomic focus);
Enhancing biodiversity (Soil biodiversity) (ecological focus);
Maintaining or enhancing water and air quality (environmental/climate focus);
Supporting human health and habitation.
sequestering carbon
Soil Health has partly if not largely replaced |
https://en.wikipedia.org/wiki/Alex%20Nesic | Alexander D. Nesic (born April 17, 1976) is a Serbian-French-American film and television actor, best known for his work in the miniseries Sleeper Cell.
Early life and education
Born in Santa Barbara, California, and raised in Antibes, France and Hawaii, Nesic is of Serbian and French descent, and holds dual United States/French citizenship and speaks four languages fluently. He earned his B.A. in European History and Spanish Literature from Santa Clara University.
Career
He has been featured in the feature films High Crimes, which starred Ashley Judd and Jim Caviezel, and the comedy What Boys Like. He played Christian Aumont on the TV series Sleeper Cell.
Nesic has also appeared in guest roles on CSI: Miami, JAG, As If, Angel, Felicity and Unhappily Ever After.
Personal life
Nesic became engaged with fellow Sleeper Cell co-star Melissa Sagemiller after proposing to her in South of France in July 2006. The couple share two children.
Partial filmography
Unhappily Ever After (1 episode, 1998) (TV)
Felicity (1 episode, 2000) (TV)
The Groomsmen (2001)
Angel (1 episode, 2001) (TV)
As If (1 episode, 2002) (TV)
High Crimes (2002)
Crossing Jordan (1 episode, 2002) (TV)
Journey Into Night (2002)
JAG (1 episode, 2003) (TV)
Malibu Eyes (2004) (V)
CSI: Miami (1 episode, 2005) (TV)
Sleeper Cell (10 episodes, 2005) (TV)
NCIS (1 episode, 2006) (TV)
Drifter (2007/I)
Say It in Russian (2007)
Eleventh Hour (1 episode, 2008) (TV)
Dirty Sexy Money (2 episodes, 2007–2009) (TV)
From Mexico wi |
https://en.wikipedia.org/wiki/Fosazepam | Fosazepam is a drug which is a benzodiazepine derivative; it is a water soluble derivative of diazepam. It has sedative and anxiolytic effects, and is a derivative of diazepam which has been substituted with a dimethylphosphoryl group to improve solubility in water.
Fosazepam has similar effects on sleep as other benzodiazepines. In a clinical trial it was reported that fosazepam to lead to increased sleep duration with less broken sleep but sleep quality was worsened with suppressed deep sleep and increased light sleep. Adverse effects included feelings of impaired morning vitality and upon discontinuing the drug benzodiazepine withdrawal symptoms of anxiety, impaired concentration and impaired morning vitality were experienced. Another clinical trial also found worsening of sleep while on benzodiazepines as well as during withdrawal with suppression of deep sleep stages including REM sleep, with increased light sleep upon withdrawal. The main metabolites of fosazepam are 3-hydroxyfosazepam and the active metabolite desmethyldiazepam which has a very long elimination half-life of about 3 days. Tolerance to the hypnotic effects of fosazepam starts to develop after about 7 days of use. Due to the very long elimination half-life of the active metabolite of fosazepam it is not recommended for use as a hypnotic. The main pharmacological effects of fosazepam may be due to its metabolite nordiazepam (desmethyldiazepam), rather than the parent drug. The long-acting active metabolit |
https://en.wikipedia.org/wiki/WNT4 | WNT4 is a secreted protein that, in humans, is encoded by the WNT4 gene, found on chromosome 1. It promotes female sex development and represses male sex development. Loss of function can have serious consequences, such as female to male sex reversal.
Function
The WNT gene family consists of structurally related genes that encode secreted signaling proteins. These proteins have been implicated in oncogenesis and in several developmental processes, including regulation of cell fate and embryogenesis.
Pregnancy
WNT4 is involved in many features of pregnancy as a downstream target of BMP2. For example, it regulates endometrial stromal cell proliferation, survival, and differentiation. These processes are all necessary for the development of an embryo. Ablation in female mice results in subfertility, with defects in implantation and decidualization. For instance, there is a decrease in responsiveness to progesterone signaling. Furthermore, postnatal uterine differentiation is characterized by a reduction in gland numbers and the stratification of the luminal epithelium.
Sexual development
Early gonads
Gonads arise from the thickening of coelomic epithelium, which at first appears as multiple cell layers. They later commit to sex determination, becoming either female or male under normal circumstances. Regardless of sex, though, WNT4 is needed for cell proliferation. In mouse gonads, it has been detected only eleven days after fertilization. If deficient in XY m |
https://en.wikipedia.org/wiki/Astrobase | Astro Base was a toy made by the Ideal company in the early 1960s. The toy ran on 4 D Cell batteries. Besides a power switch, it had several features that includes the following modes of operation:
Modes of operation
Astro Scope: Switch to Astro Scope and a scene of spaceships, rockets, and jets rotates through a viewfinder just below a radar dome on the top of the toy. A button on the console let the user "fire" at objects seen on the screen, which would pause the rotating images and emit a machine-gun style sound.
Space Lock: A crane emerges from the hatch on one side of the toy. This crane has a hoist operation that can be used to raise or lower a plastic astronaut figure, or other objects that the user may have that can be connected to the hook at the end of a chain. The main purpose of this crane is to insert or remove the astronaut from a scout car.
Scout Car: The scout car can be plugged into a port on the console and controlled by a two position switch marked "turn" and "drive" that can actually be used to steer the vehicle with a bit of practice. The scout car also has missiles that can be launched.
Ideal made two variations of the Astro Base. The original "all red" version featured a lighted Astro Scope that illuminated the pictures spinning around the Astro Scope. Ideal Toys discontinued this version and offered the common "red and white" version.
References
External links
Astro Base
1960s toys |
https://en.wikipedia.org/wiki/Soil%20carbon | Soil carbon is the solid carbon stored in global soils. This includes both soil organic matter and inorganic carbon as carbonate minerals. It is vital to the soil capacity in our ecosystem. Soil carbon is a carbon sink in regard to the global carbon cycle, playing a role in biogeochemistry, climate change mitigation, and constructing global climate models. Natural variation such as organisms and time has affected the management of carbon in the soils. The major influence has been that of human activities which has caused a massive loss of soil organic carbon. An example of human activity includes fire which destroys the top layer of the soil and the soil therefore get exposed to excessive oxidation.
Overview
Soil carbon is present in two forms: inorganic and organic. Soil inorganic carbon consists of mineral forms of carbon, either from weathering of parent material, or from reaction of soil minerals with atmospheric CO2. Carbonate minerals are the dominant form of soil carbon in desert climates. Soil organic carbon is present as soil organic matter. It includes relatively available carbon as fresh plant remains and relatively inert carbon in materials derived from plant remains: humus and charcoal.
Global carbon cycle
Although exact quantities are difficult to measure, human activities have caused substantial losses of soil organic carbon. Of the 2,700 Gt of carbon stored in soils worldwide, 1550 GtC is organic and 950 GtC is inorganic carbon, which is approximately thr |
https://en.wikipedia.org/wiki/Physics%20of%20Fluids | Physics of Fluids is a monthly peer-reviewed scientific journal covering fluid dynamics, established by the American Institute of Physics in 1958, and is published by AIP Publishing. The journal focus is the dynamics of gases, liquids, and complex or multiphase fluids—and the journal contains original research resulting from theoretical, computational, and experimental studies.
History
From 1958 through 1988, the journal included plasma physics. From 1989 until 1993, the journal split into Physics of Fluids A covering fluid dynamics, and Physics of Fluids B, on plasma physics. In 1994, the latter was renamed Physics of Plasmas, and the former continued under its original name, Physics of Fluids.
The journal was originally published by the American Institute of Physics in cooperation with the American Physical Society's Division of Fluid Dynamics. In 2016, the American Institute of Physics became the sole publisher. From 1985 to 2015, Physics of Fluids published the Gallery of Fluid Motion, containing award-winning photographs, images, and visual streaming media of fluid flow.
With funding from the American Institute of Physics the annual "François Naftali Frenkiel Award" was established by the American Physical Society in 1984 to reward a young scientist who published a paper containing significant contributions to fluid dynamics during the previous year. The award-winning paper was chosen from Physics of Fluids until 2016, but is presently chosen from Physical Review Flui |
https://en.wikipedia.org/wiki/Derek%20Jeffries | Derek Jeffries (born 22 March 1951 in Longsight, Manchester, England) is an English former footballer. He played for Manchester City, Crystal Palace, Peterborough United, Millwall and Chester. He played mainly as a central defender, but also operated in midfield.
Career
He played for Manchester City between 1968 and 1973. In the 1968–69 season he played no games. In the 1969–70 season he made his debut for City, playing seven games. In the 1970–71 season he made 19 appearances. In the 1971–72 season he played 12 games. He played as a substitute as City won the 1972 FA Charity Shield. In the 1972–73 he played 34 games. In 1973, he transferred to Crystal Palace, where he remained for four years apart from time on loan at Peterborough United and Millwall.
In the summer of 1977, Jeffries joined Chester, who were managed by his former Manchester City teammate Alan Oakes. In his first season, Jeffries helped them finish fifth in Division Three (now League One), their highest position in the last 60 years. Jeffries would be voted the club's player of the season in 1978-79 and was part of the side that reached the fifth round of the FA Cup the following season (equalling the club's best run). He left Chester on a free transfer in 1981 and drifted out of professional football, joining Telford United.
Honours
1972 FA Charity Shield
Crystal Palace F.C. Player of the Year: 1974–75
Chester City F.C. Player of the Year: 1978–79
References
External links
Sporting heroes Derek Jeffri |
https://en.wikipedia.org/wiki/KMKO-FM | KMKO-FM (95.7 FM) is an American radio station licensed to serve the community of Lake Crystal, Minnesota, broadcasting to the Mankato area and the Minnesota River Valley. The station airs an active rock format.
The station is rebroadcast in Mankato on translator K269EC 101.7 FM, which provides a stronger signal in the downtown area.
History
The station went on the air as KQYK on September 29, 2005, with a country format as "The Eagle". On September 26, 2007, the station flipped to active rock as "95.7 The Blaze," with a format and logo similar to that of sister station KIBZ in Lincoln, Nebraska. On February 1, 2012, KQYK changed their call sign to KMKO-FM. On February 20, 2012, at 11am, KMKO-FM switched to a news/talk format, as Fake It by Seether faded into The Jim Rome Show. The station flipped back to Active Rock as "95-7 The Rock Station" on December 6, 2012.
KMKO-FM is owned by Alpha Media (Digity, LLC), through licensee Digity 3E License, LLC, with sister stations KEEZ, KYSM-FM and KRBI-FM.
As of 2018 KMKO-FM has rebranded as “Rock 95” with no change in format.
Previous logos
References
External links
Radio stations in Minnesota
Radio stations established in 2005
2005 establishments in Minnesota |
https://en.wikipedia.org/wiki/KXLP | KXLP (94.1 FM) is a radio station in Mankato, Minnesota (licensed to Eagle Lake) and serving the Minnesota River Valley. The 94.1 FM frequency went on the air September 21, 2007, airing a classic rock format that migrated from a sister station at 93.1 FM. KXLP's license is owned by Radioactive, LLC (a holding company owned by Randy Michaels) and the station is operated by Linder Radio Group.
History
KXLP has been airing an album-oriented rock format on and off from 1982 to 2007. They flipped to adult contemporary in 1986 as "Lite Rock 93 KXLP" amid a large outcry from loyal listeners. A few years later, they flipped back to rock, shifting toward classic rock in 1995. For many years, they were co-owned with KYSM-FM and KYSM, first by James Ingstad (as Pro Radio Group), then Cumulus Broadcasting, then Clear Channel Communications.
KXLP previously carried the syndicated Bob and Tom show weekday mornings; it currently airs a local morning show. KXLP is a local affiliate for Minnesota Vikings and Minnesota Gophers football.
The station was purchased in August 2007 from Clear Channel by Linder Radio Group, a.k.a. Minnesota Valley Broadcasting Co., which also acquired KYSM (now KFSP). Other current sister stations include KTOE, KDOG, KXAC and KATO-FM.
At 5:00 PM on September 21, 2007, KXLP's on-air staff and rock format moved from 93.1 FM to new sign-on 94.1 FM, which held the temporary call letters KXRP for a week prior. A new format was launched at 93.1 FM.
Effective July 200 |
https://en.wikipedia.org/wiki/KTOE | KTOE (1420 AM) is a radio station licensed to Mankato, Minnesota and serving the Mankato area and the Minnesota River Valley. The 1420 AM frequency went on the air in 1950, airing a news/talk format. The station simulcasts via one FM translator on 98.7 FM. 102.7 FM use to transmit KTOE but switched to a simulcast of KXAC 100.5 on July 2, 2023. Both stations are licensed to Mankato.
The station is operated by Linder Radio Group a.k.a. Subarctic Medial LLC.
KTOE aired a full service AC format during the 1980s and was once an affiliate of American Top 40.
External links
KTOE
Radio stations in Minnesota
Mankato, Minnesota
Radio stations established in 1950 |
https://en.wikipedia.org/wiki/Optical%20modulation%20amplitude | In telecommunications, optical modulation amplitude (OMA) is the difference between two optical power levels, of a digital signal generated by an optical source, e.g., a laser diode.
It is given by
where P1 is the optical power level generated when the light source is "on," and P0 is the power level generated when the light source is "off." The OMA may be specified in peak-to-peak mW.
The OMA can be related to the average power and the extinction ratio
In the limit of a high extinction ratio, . However, OMA is often used to express the effective usable modulation in a signal when the extinction ratio is not high and this approximation may not be valid.
External links
OMA presentation by Optillion, New Orleans, September 2000
Optical communications |
https://en.wikipedia.org/wiki/RHOB | Ras homolog gene family, member B, also known as RHOB, is a protein which in humans is encoded by the RHOB gene.
RHOB is a member of the Rho GTP-binding protein family.
Interactions
RHOB has been shown to interact with CIT, ARHGEF3, ARHGDIG and RHPN2.
See also
neural crest
References
Further reading |
https://en.wikipedia.org/wiki/Blackburn%20%28surname%29 | Blackburn is a surname of English origin. At the time of the British Census of 1881, its frequency was highest in Yorkshire, followed by Cumberland, Lancashire, Lincolnshire, Northumberland, County Durham and Norfolk. In all other British counties, its frequency was below national average. Notable people with the surname include:
Alan Blackburn (1935–2014), English footballer
Anthony Blackburn (born 1945), British Royal Navy officer
Arthur Blackburn (footballer) (1876-1938), English footballer with Blackburn Rovers and Southampton
Arthur Seaforth Blackburn (1892–1960) Australian soldier, Victoria Cross recipient
Bob Blackburn (disambiguation)
Bunkie Blackburn (1936–2006), NASCAR racecar driver
Chase Blackburn (b. 1983), American football linebacker
Clare Blackburn (b. c.1962), British biologist
Clarice Blackburn (1921–1995), American actress
Colin Blackburn, Baron Blackburn (1813–1896), Scottish jurist
Dan Blackburn (b. 1983), Canadian ice hockey goaltender
David Blackburn (disambiguation), multiple people
Derek Blackburn (1934–2017), Canadian politician
Doris Blackburn (1889–1970), Australian social reformer and politician
Earl Blackburn (1892-1966), American baseball catcher
Edmond Spencer Blackburn (1868–1912), American politician
Elizabeth Blackburn (b. 1948), Australian-American molecular biologist and Nobel prize winner
Estelle Blackburn (b. 1950), Australian journalist
Fred Blackburn (1902–1990), British Member of Parliament
Fred Blackburn (footballer) (1878–1951), En |
https://en.wikipedia.org/wiki/Severov%C3%BDchod | Severovýchod (Northeast) is a statistical area of the Nomenclature of Territorial Units for Statistics, level 2 NUTS. It is composed of the Liberec Region, Hradec Králové Region and Pardubice Region of the Czech Republic. It covers an area of 12,440 km2, with 1,507,209 inhabitants and a (population density of 119 inhabitants/km2).
Economy
The Gross domestic product (GDP) of the region was 24.7 billion € in 2018, accounting for 11.9% of Czech economic output. GDP per capita adjusted for purchasing power was 23,000 € or 76% of the EU27 average in the same year. The GDP per employee was also 74% of the EU average.
See also
NUTS of the Czech Republic
References
NUTS 2 statistical regions of the European Union
Subdivisions of the Czech Republic |
https://en.wikipedia.org/wiki/GUCY2D | Retinal guanylyl cyclase 1 also known as guanylate cyclase 2D, retinal is an enzyme that in humans is encoded by the GUCY2D (guanylate cyclase 2D) gene.
Function
This gene encodes a retina-specific guanylate cyclase, which is a member of the membrane guanylyl cyclase family. Like other membrane guanylyl cyclases, this enzyme has a hydrophobic amino-terminal signal sequence followed by a large extracellular domain, a single membrane spanning domain, a kinase homology domain, and a guanylyl cyclase catalytic domain. In contrast to other membrane guanylyl cyclases, this enzyme is not activated by natriuretic peptides.
The nomenclature for members of the Gucy2 gene family is not consistent across species. In many mammals, including mice and rats, the Gucy2d gene encodes a related protein – GC-D – that is specifically expressed in a subpopulation of olfactory sensory neurons. This gene is a pseudogene in humans and most other primates. In rodents, the corresponding (orthologous) gene to human GUCY2D is Gucy2e.
Clinical significance
Mutations in this gene result in Leber's congenital amaurosis and cone-rod dystrophy-6 diseases.
References |
https://en.wikipedia.org/wiki/Reversible%20diffusion | In mathematics, a reversible diffusion is a specific example of a reversible stochastic process. Reversible diffusions have an elegant characterization due to the Russian mathematician Andrey Nikolaevich Kolmogorov.
Kolmogorov's characterization of reversible diffusions
Let B denote a d-dimensional standard Brownian motion; let b : Rd → Rd be a Lipschitz continuous vector field. Let X : [0, +∞) × Ω → Rd be an Itō diffusion defined on a probability space (Ω, Σ, P) and solving the Itō stochastic differential equation
with square-integrable initial condition, i.e. X0 ∈ L2(Ω, Σ, P; Rd). Then the following are equivalent:
The process X is reversible with stationary distribution μ on Rd.
There exists a scalar potential Φ : Rd → R such that b = −∇Φ, μ has Radon–Nikodym derivative and
(Of course, the condition that b be the negative of the gradient of Φ only determines Φ up to an additive constant; this constant may be chosen so that exp(−2Φ(·)) is a probability density function with integral 1.)
References
(See theorem 1.4)
Stochastic differential equations
Probability theorems |
https://en.wikipedia.org/wiki/D.%20J.%20Finney | David John Finney (3 January 1917 – 12 November 2018), was a British statistician
and Professor Emeritus of Statistics at the University of Edinburgh. He was Director of the Agricultural Research Council's Unit of Statistics from 1954 to 1984 and a former President of the Royal Statistical Society and of the Biometric Society. He was a pioneer in the development of systematic monitoring of drugs for detection of adverse reactions. He turned 100 in January 2017 and died on 12 November 2018 at the age of 101 following a short illness.
Childhood and education
Finney was born in Latchford, Cheshire, Warrington. In his interview with MacNeill, Finney describes his background: "My family were never wealthy but never in want". His paternal grandfather was a schoolmaster, and his father was an accountant in the steel industry. David was the eldest child; he had no sisters. In the Preface to his "Probit Analysis" book, Finney thanks his father Robt. G. S. Finney for assistance.
Finney was educated at the coeducational Lymm Grammar School and Manchester Grammar School, where he won a Cambridge scholarship. He read mathematics and statistics at Clare College, Cambridge from 1934 to 1938. He was awarded a postgraduate scholarship for statistical work in agriculture under Ronald Fisher at the Galton Laboratory, University College London, where he worked on statistical estimation for human genetics.
Career
He became assistant to Frank Yates at Rothamsted Experimental Station in 1939, w |
https://en.wikipedia.org/wiki/Bessel%27s%20correction | In statistics, Bessel's correction is the use of n − 1 instead of n in the formula for the sample variance and sample standard deviation, where n is the number of observations in a sample. This method corrects the bias in the estimation of the population variance. It also partially corrects the bias in the estimation of the population standard deviation. However, the correction often increases the mean squared error in these estimations. This technique is named after Friedrich Bessel.
Formulation
In estimating the population variance from a sample when the population mean is unknown, the uncorrected sample variance is the mean of the squares of deviations of sample values from the sample mean (i.e. using a multiplicative factor 1/n). In this case, the sample variance is a biased estimator of the population variance.
Multiplying the uncorrected sample variance by the factor
gives an unbiased estimator of the population variance. In some literature, the above factor is called Bessel's correction.
One can understand Bessel's correction as the degrees of freedom in the residuals vector (residuals, not errors, because the population mean is unknown):
where is the sample mean. While there are n independent observations in the sample, there are only n − 1 independent residuals, as they sum to 0. For a more intuitive explanation of the need for Bessel's correction, see .
Generally Bessel's correction is an approach to reduce the bias due to finite sample size. Such finite |
https://en.wikipedia.org/wiki/Humanoid%20Robotics%20Project | The Humanoid Robotics Project (HRP) is a project for development of general domestic helper robots, sponsored by Japan's Ministry of Economy, Trade and Industry (METI) and New Energy and Industrial Technology Development Organization (NEDO), spearheaded by Kawada Industries and supported by the National Institute of Advanced Industrial Science and Technology (AIST) and Kawasaki Heavy Industries, Inc. The HRP series also goes by the name Promet. The HRP should not be confused with the HOAP series (Humanoid for Open Architecture Platform), which is manufactured by Fujitsu.
Features and technology
The project started with three Honda P3 which were bought from Honda. And, the project developed them as the HRP-1 with original features, such as telecommand system.
An interesting feature HRP-2 has is the ability to stand up again after lying flat on the floor, either on its back or front—something Honda's ASIMO is not able to do.
AIST and Kawada Industries have also revealed the HRP-4 bipedal humanoid. The HRP-4 stands 150 cm (5′) tall and weighs 39 kg (86 lbs).
Kawada Industries has also developed the NEXTAGE system, envisioned as a production robot that works alongside human workers. The NEXTAGE not a biped but consists of a torso and arms on a fixed base.
Specifications
Notes:
1. – For reference to compare with the HRP-1.
2. - The external appearances of HRP-2 and HRP-3 were designed by Yutaka Izubuchi.
3. – "C" means "Cybernetic Human".
References
Spec sheets
HR |
https://en.wikipedia.org/wiki/HMGA2 | High-mobility group AT-hook 2, also known as HMGA2, is a protein that, in humans, is encoded by the HMGA2 gene.
Function
This gene encodes a protein that belongs to the non-histone chromosomal high-mobility group (HMG) protein family. HMG proteins function as architectural factors and are essential components of the enhanceosome. This protein contains structural DNA-binding domains and may act as a transcriptional regulating factor. Identification of the deletion, amplification, and rearrangement of this gene that are associated with lipomas suggests a role in adipogenesis and mesenchymal differentiation. A gene knock-out study of the mouse counterpart demonstrated that this gene is involved in diet-induced obesity. Alternate transcriptional splice variants, encoding different isoforms, have been characterized.
The expression of HMGA2 in adult tissues is commonly associated with both malignant and benign tumor formation, as well as certain characteristic cancer-promoting mutations. Homologous proteins with highly conserved sequences are found in other mammalian species, including lab mice (Mus musculus).
HMGA2 contains three basic DNA-binding domains (AT-hooks) that cause the protein to bind to adenine-thymine (AT)-rich regions of nuclear DNA. HMGA2 does not directly promote or inhibit the transcription of any genes, but alters the structure of DNA and promotes the assembly of protein complexes that do regulate the transcription of genes. With few exceptions, HMGA2 is exp |
https://en.wikipedia.org/wiki/German%20Institute%20for%20Medical%20Documentation%20and%20Information | The German Institute for Medical Documentation and Information (), abbreviated DIMDI, was a German organization responsible for medical information classification and management. It was a government Institute of the German Federal Ministry of Health and was located in Cologne, Germany.
The DIMDI published official medical classifications such as ICD-10-GM and OPS (German Procedure Classification) and maintained medical terminology dictionaries, thesauri, nomenclatures and catalogs (e.g. MeSH, UMDNS, Alpha-ID, LOINC, OID) that are important for health information exchange and other applications. DIMDI also developed and operated database-supported information systems for drugs and medical devices and was responsible for a program of health technology assessment (HTA). It also provided information intended for patients.
On 26 May 2020, the DIMDI was merged with the Federal Institute for Drugs and Medical Devices (BfArM) into a single agency under the auspices of the BfArM "to combine the resources and expertise of both authorities".
See also
German National Library of Science and Technology
References
External links
DIMDI official website
ICD Code Suche (German)
Further reading
Unified Medical Language System (UMLS)
ICD-10 Diagnosen und Psychotherapie (in German)
Head and Structure BfArM
Medical and health organisations based in North Rhine-Westphalia
Government agencies of Germany
Organisations based in Cologne |
https://en.wikipedia.org/wiki/Talking%20in%20Your%20Sleep%20%28Crystal%20Gayle%20song%29 | "Talking in Your Sleep" is a song written by Roger Cook and Bobby Wood. The first recorded version of the song is by the band Marmalade, produced by Cook's longtime collaborator Roger Greenaway; Marmalade's version was also released as single in 1978 but failed to chart.
Crystal Gayle recording
"Talking in Your Sleep" was most successful when recorded by American country music artist Crystal Gayle. It was released in January 1978 as the first single from the album When I Dream. The song became a hit on both the country and pop charts in 1978. It peaked at number one on the US Country chart for two weeks, number eighteen on the US Pop chart and number three at the US Adult Contemporary chart.
In 1977, Gayle achieved international crossover Pop success for the first time with her No. 1 hit "Don't It Make My Brown Eyes Blue". Following the song's success, Gayle was recording more Pop and Adult Contemporary-styled Country tunes. This song is one of the first examples of this. "Talking in Your Sleep" was released in early 1978, and was a hit mid-year. The song proved an instant follow-up for Gayle on the Pop charts, being she hadn't had another Top 40 Pop hit since "Don't It Make My Brown Eyes Blue" the previous year.
"Talking in Your Sleep" was released on Gayle's major-selling album from that year called When I Dream. Following "Talking in Your Sleep"'s success as a crossover smash, Gayle only achieved one more Top 40 Pop hit as a solo artist, which came the next year with |
https://en.wikipedia.org/wiki/Half%20the%20Way | "Half the Way" is a song written by Ralph Murphy and Bobby Wood, and recorded by American country music artist Crystal Gayle. It was released in September 1979 as the first single from the album Miss the Mississippi.
After achieving major Country crossover success in 1977 with "Don't It Make My Brown Eyes Blue.", followed by a Top 20 Pop hit and No. 1 Country hit the next year ("Talking In Your Sleep"), Gayle attempted this new crossover piece of music.
After signing with Columbia Records in early 1979, Gayle immediately started recording for them. "Half the Way" was the first song recorded under her new record label. The song's up-tempo sound and Soft Rock-sounding melody, made the song reach Billboard's Top 20 chart, and even reaching the Top 15, peaking at No. 15 in 1979. The song also climbed to Billboard Magazine's No. 2 position on the Country charts, just missing the top spot. Like Gayle's other previous recordings, the song also hit the Adult Contemporary chart. "Half the Way" is one of Gayle's better-known Adult Contemporary hits, reaching the Top 10 at No. 9. Following "Half the Way"'s success, Gayle never achieved another Top 40 Pop hit on her own again. Her singles did chart outside the Pop Top 40 though following this, and also the Adult Contemporary chart.
Chart performance
References
External links
1979 singles
1979 songs
Crystal Gayle songs
Songs written by Ralph Murphy (musician)
Song recordings produced by Allen Reynolds
Columbia Records singles
Son |
https://en.wikipedia.org/wiki/Jihov%C3%BDchod | Jihovýchod (Southeast) is a statistical area of the Nomenclature of Territorial Units for Statistics, level NUTS 2. It comprises Vysočina Region and South Moravian Region.
It covers an area of 13 990 km2 and has 1,684,500 inhabitants (population density 117 inhabitants/km2).
Economy
The Gross domestic product (GDP) of the region was 30.5 billion € in 2018, accounting for 14.7% of Czech economic output. GDP per capita adjusted for purchasing power was 25,300 € or 84% of the EU27 average in the same year. The GDP per employee was also 77% of the EU average.
See also
NUTS of the Czech Republic
References
NUTS 2 statistical regions of the European Union
Subdivisions of the Czech Republic |
https://en.wikipedia.org/wiki/Neozealandia | Neozealandia is a biogeographic province of the Antarctic Realm according to the classification developed by Miklos Udvardy in 1975.
Concept
Neozealandia consists primarily of the major islands of New Zealand, including North Island and South Island, as well as Chatham Island. The southernmost areas of Neozealandia overlap with the Insulantarctica province, which includes the New Zealand Subantarctic Islands.
Both New Zealand and the New Zealand Subantarctic Islands are remnants of a submerged subcontinent known as Zealandia, which gradually submerged itself beneath the sea after breaking off from the Gondwanan land masses of Antarctica and Australia. Due to isolation, the entire Zealandia archipelago has remained virtually free of mammals (except for bats and a few others) and invasive alien species. Since only very few mammals and other alien species have actually colonized the islands of the Neozealandia province over the millions of years, the flora and fauna on most of the islands, including those of New Zealand itself, have remained almost exactly the same as they were when the original Gondwana supercontinent existed.
A couple of tuatara species survive in small numbers on small islets adjacent to New Zealand. Also, New Zealand has vestiges of ancient temperate rain forests with plant species, such as giant club mosses, tree ferns and Nothofagus trees, dating from the time when the Zealandia subcontinent split off from Gondwana. New Zealand grasslands are dominated |
https://en.wikipedia.org/wiki/Tennenbaum%27s%20theorem | Tennenbaum's theorem, named for Stanley Tennenbaum who presented the theorem in 1959, is a result in mathematical logic that states that no countable nonstandard model of first-order Peano arithmetic (PA) can be recursive (Kaye 1991:153ff).
Recursive structures for PA
A structure in the language of PA is recursive if there are recursive functions and from to , a recursive two-place relation <M on , and distinguished constants such that
where indicates isomorphism and is the set of (standard) natural numbers. Because the isomorphism must be a bijection, every recursive model is countable. There are many nonisomorphic countable nonstandard models of PA.
Statement of the theorem
Tennenbaum's theorem states that no countable nonstandard model of PA is recursive. Moreover, neither the addition nor the multiplication of such a model can be recursive.
Proof sketch
This sketch follows the argument presented by Kaye (1991). The first step in the proof is to show that, if M is any countable nonstandard model of PA, then the standard system of M (defined below) contains at least one nonrecursive set S. The second step is to show that, if either the addition or multiplication operation on M were recursive, then this set S would be recursive, which is a contradiction.
Through the methods used to code ordered tuples, each element can be viewed as a code for a set of elements of M. In particular, if we let be the ith prime in M, then . Each set will be bounded in M, |
https://en.wikipedia.org/wiki/VPS13B | Intermembrane lipid transfer protein VPS13B, also known as vacuolar protein sorting-associated 13B, and Cohen syndrome protein 1 is a protein that in humans is encoded by the VPS13B gene. It is a giant protein associated with the Golgi apparatus that is believed to be involved in post-Golgi apparatus sorting and trafficking. Mutations in the human VPS13B gene cause Cohen syndrome.
VPS13B gene is also referred to as CHS1, COH1, KIAA0532, and DKFZp313I0811.
The cytogenetic location of the human VPS13B gene is 8q22, which is the long arm of chromosome eight at position 22.2. Various splice variants encoding isoforms have been identified. The canonical form of the expressed protein encoded by the human VPS13B gene has 3997 amino acids.
Gene
The VPS13B gene is located on chromosome 8q22. Deletions in this chromosome are associated with Cohen syndrome, which is why this gene is alternatively called COH1. The gene is made up of 66 exons, four of which are alternative. The pattern of alternative splicing in the VS13B gene is complex in the analyzed regions including exons 28B and 28. This eventually causes four termination codons and three alternatively spliced forms to be in use. Exon 2 is where its translation start codon occurs. VPS13B is a large gene; It spans a genomic DNA sequence region of about 864 kilobase pairs, or 846,000 base pairs. The VPS13B gene is widely expressed, especially in the prostate, testis, ovary, and colon with transcripts of about 12 to 14 kilobase pa |
https://en.wikipedia.org/wiki/Micropolygyria | Micropolygyria is a neuronal migration disorder, a developmental anomaly of the brain characterized by development of numerous small convolutions (microgyri), causing intellectual disability and/or other neurological disorders. It is present in a number of specific neurological diseases, notably multiple sclerosis and :Fukuyama congenital muscular dystrophy, a specific disease cause by mutation in the :Fukutin gene (FKTN).
References
External links
Brain disorders |
https://en.wikipedia.org/wiki/Arfendazam | Arfendazam (INN) is a drug which is a benzodiazepine derivative. Arfendazam is a 1,5-benzodiazepine, with the nitrogen atoms located at positions 1 and 5 of the diazepine ring, and so is most closely related to other 1,5-benzodiazepines such as clobazam.
Arfendazam has sedative and anxiolytic effects similar to those produced by other benzodiazepine derivatives, but is a partial agonist at GABAA receptors, so the sedative effects are relatively mild and it produces muscle relaxant effects only at very high doses.
Arfendazam produces an active metabolite lofendazam, which is thought to be responsible for part of its effects.
See also
Benzodiazepine
References
Benzodiazepines
Carbamates
Chloroarenes
GABAA receptor positive allosteric modulators
Lactams |
https://en.wikipedia.org/wiki/Lofendazam | Lofendazam is an organic molecule which is a benzodiazepine derivative. Lofendazam is a 1,5-benzodiazepine, with the nitrogen atoms located at positions 1 and 5 of the diazepine ring; therefore, lofendazam is most closely related to other 1,5-benzodiazepines such as clobazam.
Lofendazam as a human pharmaceutical has sedative and anxiolytic effects similar to those produced by other benzodiazepine derivatives. It is an active metabolite of another benzodiazepine, arfendazam.
See also
Benzodiazepine
Arfendazam
Clobazam
References
Benzodiazepines
Chloroarenes
GABAA receptor positive allosteric modulators
Lactams |
https://en.wikipedia.org/wiki/Iclazepam | Iclazepam (Clazepam) is a drug which is a benzodiazepine derivative. It has sedative and anxiolytic effects similar to those produced by other benzodiazepine derivatives, and is around the same potency as chlordiazepoxide.
Iclazepam is a derivative of nordazepam substituted with a cyclopropylmethoxyethyl group on the N1 nitrogen. Once in the body, iclazepam is quickly metabolised to nordazepam and its N-(2-hydroxyethyl) derivative, which are thought to be mainly responsible for its effects.
See also
List of benzodiazepines
References
Benzodiazepines
Chloroarenes
Ethers
GABAA receptor positive allosteric modulators
Lactams |
https://en.wikipedia.org/wiki/Gorgonin | Gorgonin is a complex protein that makes up the horny skeleton of the holaxonia suborder of gorgonians. It frequently contains appreciable quantities of bromine, iodine, and tyrosine.
Scientific use
Research has shown that measurements of the gorgonin and calcite within species of gorgonia can be useful in paleoclimatology and paleoceanography. Studies of the growth, composition, and structure of the skeleton of certain gorgonia species, (e.g., Primnoa resedaeformis, and Plexaurella dichotoma) can be highly correlated with seasonal and climatic variation.
References
Proteins |
https://en.wikipedia.org/wiki/Dininho | Irondino Ferreira Neto or simply Dininho (born July 23, 1975), is a Brazilian central defender. He currently plays for Grêmio Catanduvense de Futebol.
Club statistics
Flamengo career statistics
(Correct October 19, 2008)
according to combined sources on the.
Honours
São Caetano
São Paulo State Championship: 2004
Palmeiras
São Paulo State Championship: 2008
References
External links
dininho official site
sambafoot
Guardian Stats Centre
zerozero.pt
globoesporte
1975 births
Living people
Brazilian men's footballers
Brazilian expatriate men's footballers
CR Flamengo footballers
Mirassol Futebol Clube players
Mogi Mirim Esporte Clube players
América Futebol Clube (SP) players
Associação Desportiva São Caetano players
São Paulo state football team players
Sanfrecce Hiroshima players
Sociedade Esportiva Palmeiras players
Esporte Clube Santo André players
Expatriate men's footballers in Japan
J1 League players
Men's association football defenders |
https://en.wikipedia.org/wiki/Fletazepam | Fletazepam is a drug which is a benzodiazepine derivative. It has sedative and anxiolytic effects similar to those produced by other benzodiazepine derivatives, but is mainly notable for its strong muscle relaxant properties.
Fletazepam is most closely related to other N-trifluoroethyl substituted benzodiazepines such as halazepam and quazepam.
See also
Benzodiazepine
References
Benzodiazepines
Chloroarenes
GABAA receptor positive allosteric modulators
Trifluoromethyl compounds
Fluoroarenes |
https://en.wikipedia.org/wiki/Flutazolam | Flutazolam (Coreminal, MS-4101) is a drug which is a benzodiazepine derivative. It was invented in Japan, and this is the main country in which it has been used medically. It has sedative, muscle relaxant, anticonvulsant, and anxiolytic effects similar to those produced by other benzodiazepine derivatives, and though it is around the same potency as diazepam, it produces a more marked sedation and impaired coordination. It is indicated for the treatment of insomnia. Its major active metabolite is n-desalkylflurazepam, also known as norflurazepam, which is also a principal metabolite of flurazepam (trade name Dalmane). While flutazolam has a very short half-life of only 3.5 hours, n-desalkylflurazepam has a long half-life of between 47–100 hours.
Flutazolam is closely related in structure to another benzodiazepine, haloxazolam.
See also
Benzodiazepine
Flurazepam
N-desalkylflurazepam
References
Primary alcohols
Chloroarenes
GABAA receptor positive allosteric modulators
Lactams
Fluoroarenes
Oxazolobenzodiazepines |
https://en.wikipedia.org/wiki/Metaclazepam | Metaclazepam (marketed under the brand name Talis) is a drug which is a benzodiazepine derivative. It is a relatively selective anxiolytic with less sedative or muscle relaxant properties than other benzodiazepines such as diazepam or bromazepam. It has an active metabolite N-desmethylmetaclazepam, which is the main metabolite of metaclazepam. There is no significant difference in metabolism between younger and older individuals.
Metaclazepam is slightly more effective as an anxiolytic than bromazepam, or diazepam, with a 15 mg dose of metaclazepam equivalent to 4 mg of bromazepam. Metaclazepam can interact with alcohol producing additive sedative-hypnotic effects. Fatigue is a common side effect from metaclazepam at high doses. Small amounts of metaclazepam as well as its metabolites enter into human breast milk.
See also
Benzodiazepine
References
Benzodiazepines
Chloroarenes
Ethers
GABAA receptor positive allosteric modulators
Bromoarenes |
https://en.wikipedia.org/wiki/Reclazepam | Reclazepam is a drug which is a benzodiazepine derivative. It has sedative and anxiolytic effects similar to those produced by other benzodiazepine derivatives, and has a short duration of action.
Synthesis
The reduction of the lactam in Delorazepam with lithium aluminium hydride gives CID:20333776 (1). Condensation with 2-chloroacetylisocyanate [4461-30-7] (2) proceeds to afford urea, CID:20333773 (3). Reaction of that with sodium iodide and base probably proceeds initially by halogen exchange of iodine for chlorine (Finkelstein reaction). Subsequent replacement of iodide by the enol anion of the urea oxygen results in formation of the oxazolone ring. There is thus obtained reclazepam (4).
See also
Benzodiazepine
References
Benzodiazepines
Chloroarenes
GABAA receptor positive allosteric modulators
Oxazolones |
https://en.wikipedia.org/wiki/Pivoxazepam | Pivoxazepam is a drug which is a benzodiazepine derivative. It is the pivalate (2,2-dimethylpropanoate) ester of oxazepam. It has sedative and anxiolytic actions like those of other benzodiazepines. Compared to its parent drug, oxazepam, pivoxazepam is more rapidly absorbed and slightly more sedative.
See also
Benzodiazepine
List of benzodiazepines
References
Benzodiazepines
Chloroarenes
GABAA receptor positive allosteric modulators
Lactams
Pivalate esters |
https://en.wikipedia.org/wiki/Marginal%20model | In statistics, marginal models (Heagerty & Zeger, 2000) are a technique for obtaining regression estimates in multilevel modeling, also called hierarchical linear models.
People often want to know the effect of a predictor/explanatory variable X, on a response variable Y. One way to get an estimate for such effects is through regression analysis.
Why the name marginal model?
In a typical multilevel model, there are level 1 & 2 residuals (R and U variables). The two variables form a joint distribution for the response variable (). In a marginal model, we collapse over the level 1 & 2 residuals and thus marginalize (see also conditional probability) the joint distribution into a univariate normal distribution. We then fit the marginal model to data.
For example, for the following hierarchical model,
level 1: , the residual is , and
level 2: , the residual is , and
Thus, the marginal model is,
This model is what is used to fit to data in order to get regression estimates.
References
Heagerty, P. J., & Zeger, S. L. (2000). Marginalized multilevel models and likelihood inference. Statistical Science, 15(1), 1-26.
Regression models |
https://en.wikipedia.org/wiki/Respiratory%20center | The respiratory center is located in the medulla oblongata and pons, in the brainstem. The respiratory center is made up of three major respiratory groups of neurons, two in the medulla and one in the pons. In the medulla they are the dorsal respiratory group, and the ventral respiratory group. In the pons, the pontine respiratory group includes two areas known as the pneumotaxic center and the apneustic center.
The respiratory center is responsible for generating and maintaining the rhythm of respiration, and also of adjusting this in homeostatic response to physiological changes. The respiratory center receives input from chemoreceptors, mechanoreceptors, the cerebral cortex, and the hypothalamus in order to regulate the rate and depth of breathing. Input is stimulated by altered levels of oxygen, carbon dioxide, and blood pH, by hormonal changes relating to stress and anxiety from the hypothalamus, and also by signals from the cerebral cortex to give a conscious control of respiration.
Injury to respiratory groups can cause various breathing disorders that may require mechanical ventilation, and is usually associated with a poor prognosis.
Respiratory groups
The respiratory center is divided into three major groups, two in the medulla and one in the pons. The two groups in the medulla are the dorsal respiratory group and the ventral respiratory group. In the pons, the pontine respiratory group is made up of two areas – the pneumotaxic center and the apneustic center. T |
https://en.wikipedia.org/wiki/Central%20Moravia | Central Moravia (Střední Morava) is an area of the Czech Republic defined by the Republic's Nomenclature of Territorial Units for Statistics, level NUTS 2. It is formed by the Olomouc Region and Zlín Region. It covers an area of 9 231 km2 and 1,219,394 inhabitants (population density 133 inhabitants/km2).
Economy
The Gross domestic product (GDP) of the region was 19.3 billion € in 2018, accounting for 9.3% of Czech economic output. GDP per capita adjusted for purchasing power was 22,400 € or 74% of the EU27 average in the same year. The GDP per employee was 70% of the EU average.
See also
NUTS of the Czech Republic
References
NUTS 2 statistical regions of the European Union
Subdivisions of the Czech Republic |
https://en.wikipedia.org/wiki/Copper%28I%29%20fluoride | Copper(I) fluoride or cuprous fluoride is an inorganic compound with the chemical formula CuF. Its existence is uncertain. It was reported in 1933 to have a sphalerite-type crystal structure. Modern textbooks state that CuF is not known, since fluorine is so electronegative that it will always oxidise copper to its +2 oxidation state. Complexes of CuF such as [(Ph3P)3CuF] are, however, known and well characterised.
Synthesis and reactivity
Unlike other copper(I) halides like copper(I) chloride, copper(I) fluoride tends to disproportionate into copper(II) fluoride and copper in a one-to-one ratio at ambient conditions, unless it is stabilised through complexation as in the example of [Cu(N2)F].
2CuF → Cu + CuF2
See also
Copper(II) fluoride, the other simple fluoride of copper
References
Fluorides
Metal halides
Copper(I) compounds
Zincblende crystal structure
Hypothetical_chemical_compounds |
https://en.wikipedia.org/wiki/KHC | KHC may refer to:
Kinesin heavy chain, a sub-component of kinesin proteins
Kingdom Holding Company, company based in Saudi Arabia
Kraft Heinz Company (stock ticker KHC)
KHC, the IATA code for Kerch Airport, Crimea, Ukraine |
https://en.wikipedia.org/wiki/Domine%20Database | DOMINE is a database of known and predicted protein domain interactions (or domain-domain interactions). It contains interactions observed in PDB crystal structures, and those predicted by several computational approaches. DOMINE uses Pfam HMM profiles for protein domain definitions. The DOMINE database contains 26,219 interactions among 5,410 domains), which includes 6,634 known interactions inferred from PDB structure data.
References
See also
DOMINE database
Biological databases
Protein structure
Protein domains |
https://en.wikipedia.org/wiki/4-8-2%2B2-8-4 | Under the Whyte notation for the classification of steam locomotives by wheel arrangement, a is a Garratt articulated locomotive consisting of a pair of engine units back to back, with the boiler and cab suspended between them. The wheel arrangement has four leading wheels on two axles, usually in a leading bogie, eight powered and coupled driving wheels on four axles and two trailing wheels on one axle, usually in a trailing truck. Since the type is generally known as a Mountain, the corresponding Garratt type is usually known as a Double Mountain.
Overview
A Garratt locomotive is actually two separate engines combined in a double articulated format, thereby providing multiple powered axles over which the total locomotive weight is spread. This results in a more powerful locomotive since, compared to a tender locomotive of similar total mass with tender included, a much larger percentage of the locomotive's total mass contributes to traction.
The Double Mountain was probably the optimal Garratt wheel arrangement, with the four-wheeled leading bogies and the two-wheeled trailing trucks on each engine unit ensuring stability at speed and with sixteen coupled wheels for traction. More coupled wheels would inhibit the locomotive on tight curves, while the only advantage of more non-coupled wheels would be to reduce the axle loading.
The largest steam locomotive built in Europe was a Garratt, built by Beyer, Peacock and Company for the Soviet Railways in 1932. The most n |
https://en.wikipedia.org/wiki/Cottonclad%20warship | Cottonclads were a classification of steam-powered warships where a wooden ship was protected from enemy fire by bales of cotton lining its sides. Cottonclads were prevalent during the American Civil War, particularly in the Confederate States Navy for riverine and coastal service such as in the battles of Memphis, Galveston, and Sabine Pass. Confederate tactics generally had cottonclads, which were outgunned by Union warships, steam at full speed towards enemy vessels, relying on the cotton to absorb fire. Once they were within firing range, they would open fire, and, if possible, ram or board the enemy.
Conversion
Around 1863, Confederate Commander John B. Magruder realized that Texas did not possess the funding and resources—such as iron mills—to produce impressive and potent vessels such as the ironclad CSS Virginia, thus inspiring the development of a new type of warship, later classified as a cottonclad warship. Cottonclads were various kinds of steamboats transformed into warships in places such as Buffalo Bayou, near Houston. In this process, the upper deck, called the Texas deck, was removed. As a result of this, many of these ships developed "the rakish look of an ironclad ram, if not the potency."
Five hundred-pound cotton bales were placed, on their sides, three bales high, with another row of bales lying flat behind the first row; these bales served as platforms for sharpshooters. All of the bales would be held in place with iron straps fastened to the bulwark |
https://en.wikipedia.org/wiki/Eger%20V.%20Murphree | Eger Vaughan Murphree (November 3, 1898 – October 29, 1962) was an American chemist, best known for his co-invention of the process of fluid catalytic cracking.
Biography
Murphree was born on November 3, 1898, in Bayonne, New Jersey, moving as a child to Kentucky. He graduated from Kentucky University with degrees in chemistry and mathematics in 1920, and a master's degree in chemistry in 1921. Murphree played college football as Kentucky as a tackle and was captain of the 1920 Kentucky Wildcats football team.
After teaching physics and math and coaching football for a year at Paris High School in Paris, Illinois, Murphree spent several years at the Massachusetts Institute of Technology as a staff assistant and research associate in the Chemical Engineering Department. In 1930, he joined what was then Standard Oil of New Jersey.
During the Second World War Murphree was a member of the committee that organized the Manhattan Project and was widely recognized as a leader in the fields of synthetic toluene, butadiene and hydrocarbon synthesis, fluid cat cracking, fluid hydroforming, and fluid coking.
He was also involved in the early Manhattan Project as a member of the S-1 Section. Murphree was head of the centrifuge project (soon abandoned) and overall engineer for the Manhattan Project in June 1942. He struck Deputy District Engineer Kenneth Nichols as "more like the industrial engineers I was accustomed to dealing with. He was stable, conservative, thorough and precise". |
https://en.wikipedia.org/wiki/Fuller%20Albright | Fuller Albright (January 12, 1900 – December 8, 1969) was an American endocrinologist who made numerous contributions to his field, especially to the area of calcium metabolism. Albright made great strides and contributions to the understanding of disorders associated with calcium and phosphate abnormalities in the body. He also was a published author and in his books he detailed his findings.
Early life
Albright was born on January 12, 1900, in Buffalo, New York. He was the third child of John J. Albright, a prominent businessman and philanthropist who constructed the Albright Art Gallery in Buffalo, and Susan Fuller, a Smith College graduate who was Albright's second wife. Albright had three children from his first marriage and six from his marriage to Fuller. His maternal grandparents were Eben and Nancy Fuller, of Lancaster, Massachusetts. His paternal grandparents were Joseph Jacob and Elizabeth S. Albright, both from Pennsylvania.
The family was descended from Andrew Albright, a gunsmith who supplied arms to the troops of the Continental Army during the Revolutionary War, who had come to America in 1750. Joseph was a coal agent for Delaware and Hudson Canal Company and the Delaware, Lackawanna and Western Railroad and eventually, President of the First National Bank.
Education
Albright entered Harvard College at age of seventeen. After graduating cum laude three years later, he entered Harvard Medical School in the fall of 1920. While he initially took an interest |
https://en.wikipedia.org/wiki/The%20Ultimate%20School%20of%20Rock%20%26%20Roll | The Ultimate School Of Rock & Roll is a 32-track CD by Gene Summers. It is a compilation of his biggest hits including out-takes and alternate tracks. The CD was released nationally in the United States by Crystal Clear Sound Records in 1997 and is still in print. It was issued as a deluxe edition with an insert booklet containing 16 printed pages with extensive photos plus exclusive liner notes by Phil York (Yorktown Digital, USA).
Credits - Compilation producer: Phil York, Digital audio restoration: Phil York for Big Y Productions, A&R/Production supervision: David Dennard, Executive producer: Sam Paulos, Mastered at Crystal Clear Studios by Keith Rust, Art direction, Design: Frank Laudo, Digital illustration: Robert Greeson, Digital scans: Marci Fermier, Liner notes: Phil York, Photographs, sound sources and memorabilia courtesy of the Gene Summers Archives, the Tom Fleeger Collection, the Phil York Archives and the Steve Bonner Collection. Special thanks to: Tom Fleeger, Jan Records, Jane Records, Song Productions, Inc., Ted Music, Steve Bonner, George Gimarc, Terry Smith, LeBill Music, Jim Lowe and Alta Records.
Session musicians -
Joe Adams - background vocals,
James Anderson - guitar;
Kevin Bailey - background vocals,
Al "TNT" Braggs - background vocals,
Bill Brown - piano,
Red Callendar - bass;
Jack Castleberry - bass,
Robert Clark - 12-string guitar, guitar,
James Clay - saxophone,
Joe Cook - guitar,
Hal Cormike - keyboards,
Ronnie Dawson - drums,
J |
https://en.wikipedia.org/wiki/Homogeneous%20alignment | In liquid crystals homogeneous alignment, sometimes called planar alignment, is the state of alignment where molecules align in parallel to a substrate. The opposite method is homeotropic alignment.
For planar alignment - polyimides can be used. One of the popular ones is PI-2555.
The surface has to be rubbed by paper or by a velvet or similar cloth in order to make the alignment axis parallel to the rubbing. However the exact mechanism if this alignment is not entirely clear.
Liquid crystals |
https://en.wikipedia.org/wiki/Do%20Right%20Daddy | Do Right Daddy is an album by Gene Summers. It was recorded at Enviken Studios, Enviken, Sweden on August 5, 2002. The back-up band included Ulf Back, Jonas Olpers, Patrik Staffansson, Riley McOwen, Lars Sodervall, Ulf Torstensson and Henrik Eriksson. Two of the tracks on this album, "Little Lu Ann" and "Boogie Rock," were written by James McClung who also composed "School Of Rock 'n Roll" "Alabama Shake" and "Fancy Dan" for Summers in the 1950s. McClung was also a founding member of Gene Summers and the Rebels in 1957.
"Do Right Daddy" was produced by Patrik Staffansson. The CD was released by Enviken Records in 2004 and is in print.
Reviews
Gene Summers - Do Right Daddy
[ENREC122]
"Gene Summers is a Rock 'n' Roll legend who has still got it! The cat that cut classics like 'School Of Rock 'n Roll', 'Alabama Shake' and 'Nervous' has returned to the studio to cut an album with musicians from Sonny Rogers & The Kingpins and Riley McOwen & The Sleazy Rustic Boys. Also making a guest appearance on saxophone is (Bill Haley's) Comets legend Joey D'Ambrosio. Gene Summers still sounds great, and with these top musicians you are assured of a Killer album!" -Raucous Records, 2004 UK
"-All told "Do Right Daddy" is like a breathe of fresh air. This is how new albums from 50s originals should sound. Ten out of ten". -Trevor Cajiao, Now Dig This! Magazine, 2004 UK
".....about 65 years of age, Gene Summers sings and rocks like he did 45 years ago, when he recorded the immortal "School O |
https://en.wikipedia.org/wiki/School%20of%20Rock%20%27n%20Roll%20%28album%29 | School Of Rock & Roll is a CD by Gene Summers. It was his first CD release although many of his recordings had been previously released on various artists compilation albums and CDs. School Of Rock 'n Roll (the album) was issued in 1993 on Collector Records (#4420) out of the Netherlands.
Production and album credits
The original recording sessions were held in Los Angeles, Dallas, Fort Worth and Nashville. The CD contains all his original 1950s hits plus other tracks from the 60s, 70s and even a couple of 80s tracks that were recorded in Nashville in 1981.
The original master tapes, demos and private recordings were used for the production of the CD when available. The CD was produced by Cees Klop. The liner notes were written by Steve Kelemen of Canada.
Session musicians included: James McClung, Benny Williams, Gary Moon, Rene Hall, Plas Johnson, Earl Palmer, Red Callendar, David (Dave) Martin, Glen Keener, Charlie Mendias, Mel Robinson, Bobby Rambo, Joe Ramirez Combo, Jack Castleberry, C. B. Williams, Ernest Walker, Joe Cook, Al Struble, Larry Jannasch, Kenny Hargis, Dan Edwards, Glen Struble, Eddie Wayne Hill, Joel Colbert, Leonard Walters, Joe Donnell, Tommy Morrell, Art McNulty, Ronnie Dawson, Marvin ("Smokey") Montgomery, Bill Hudson, Dale Sellers, Jerry Stembridge, David Briggs, Stu Basore, Charlie McCoy, Mike Leech and Hayward Bishop. The background vocal groups were The Five Masks and The Jordanaires plus (Al Struble, Dan Edwards & Glen Struble).
Track listing
|
https://en.wikipedia.org/wiki/VGX | VGX can mean one of the following:
The abbreviation of Vector Graphics;
VGX (award show), the name of Spike TV's video game award show, formerly called the Spike Video Game Awards.
The component of Microsoft Windows operating systems responsible for the vector graphics rendering.
Virgin Galactic ICAO callsign |
https://en.wikipedia.org/wiki/Astellas%20Institute%20for%20Regenerative%20Medicine | Astellas Institute for Regenerative Medicine is a subsidiary of Astellas Pharma located in Marlborough, Massachusetts, US, developing stem cell therapies with a focus on diseases that cause blindness. It was formed in 1994 as a company named Advanced Cell Technology, Incorporated (ACT), which was renamed to Ocata Therapeutics in November 2014. In February 2016 Ocata was acquired by Astellas for $379 million USD.
History
Advanced Cell Technology was formed in 1994 and was led from 2005 to late 2010 by William M. Caldwell IV, Chairman and Chief Executive Officer. Upon Mr. Caldwell's death on December 13, 2010, Gary Rabin, a member of ACT's board of directors with experience in investment and capital raising, assumed the role of Chairman and CEO.
In 2007 the company's Chief Scientific Officer (CSO), Michael D. West, PhD, also founder of Geron left Ocata to join a regenerative medicine firm, BioTime as CEO. In 2008, for $250,000 plus royalties up to a total of $1 million, the company licensed its "ACTCellerate" technology to BioTime. Robert Lanza was appointed CSO.
On November 22, 2010, the company announced that it had received approval from the U.S. Food and Drug Administration (FDA) to initiate the first human clinical trial using embryonic stem cells to treat retinal diseases. A preliminary report of the trial published in 2012, and a follow-up article was published in February 2015.
In July 2014, Ocata announced that Paul K. Wotton, previously of Antares Pharma Inc |
https://en.wikipedia.org/wiki/The%20Southern%20Cat%20Rocks%20On | The Southern Cat Rocks On is a 12" vinyl album by Gene Summers, his second album release. It is a compilation of tracks he recorded in Texas between 1962 and 1975.
Production and album credits
All selections were recorded at Real To Reel Studios, Garland, Texas except "Dance Dance Dance", "Chapel Bells Ringing" and "Almost 12:O'Clock" (Top Ten Studios, Dallas) and "Bonnie Parker" (Summit Sound Studio, Dallas). Session musicians included James McClung, Glen Keener, David (Dave) Martin, Charlie Mendias, Melvin Robinson, Joe Cook, Al Struble, Larry Jannasch and Kenny Hargis plus the Joe Ramirez Combo. Background vocals: Al Struble, Glen Struble and Larry Jannasch. Engineers: Dave Garner, Bob ("Git-It") Kelly and Bob Sullivan. Producers include Marvin "Smokey" Montgomery and Gene Summers. A Michael Cattin Production. It was released in 1975, on the Swiss Lake County Records label.
Track listing
Spoken Introduction
"Almost 12:O'Clock"
"Wine Wine Wine"
"Chapel Bells Ringing"
"Leroy"
"Lover Please"
"Who Stole The Marker (From the Grave of Bonnie Parker)?"
"Dance Dance Dance"
"Mad Mad World"
"Good Rockin' Tonight"
"Memphis"
"Long Tall Texan"
"Fannie Mae"
References
Sources
Liner notes "The Ultimate School Of Rock & Roll" 1997 United States
Article and sessionography in issue 15 (1977) of New Kommotion Magazine UK
Article and sessionography in issue 23 (1980) of New Kommotion Magazine UK
Feature article and sessionography in issue 74 (1999) of Rockin' Fifties Magazine Germany
Fea |
https://en.wikipedia.org/wiki/Mister%20Rock%20and%20Roll | Mister Rock and Roll is a 12", vinyl record album (LP) by Gene Summers, issued by Lake County Records in 1977. It was Summers's second album released by the Swiss label.
Production and album credits
All tracks were recorded at Real To Reel Studios in Dallas, Texas on July 21 and 28, 1977 with the exception of "Taboo", "Big Blue Diamonds" and "A Man Can Cry". "Taboo" and "Big Blue Diamonds" were recorded at the Clifford Herring Studios in Fort Worth, Texas in 1959 and 1963 respectively, and "A Man Can Cry" was recorded at Sumit Sound in Dallas in 1975. The album was produced by Gene Summers and the executive producer was Michael Cattin. Recording engineer and mixdown by Dave Garner. Musicians included Joe Cook, Al Struble, Glen Struble, Kenny Hargis, Dan Edwards, Eddie Wayne Hill, Joel Colbert, Joe Donnell, Leonard Walters, David (Dave) Martin, James McClung, Jack Castleberry, Charlie Mendias, Ernest Walker, C.B. Williams, Buddy Stephens and Larry Jannasch. Background vocals were provided by Dan Edwards, Al Struble, Glen Struble and Tom Cunningham.
Track listing
"Mister Rock and Roll"
"As Long As I Have You"
"Down on the Farm"
"You Need My Love"
"I Got a Baby"
"A Man Can Cry"
"Cool Baby"
"I've Had It"
"You're Gonna Be Sorry"
"Taboo"
"Rockin' Daddy"
"Big Blue Diamonds" (with background vocals added)
Discography references
Gene Summers discography from Rockin' Country Style, US
Gene Summers discography from Rocky Productions, France
Gene Summers discography from Wangdangd |
https://en.wikipedia.org/wiki/Texas%20Rock%20and%20Roll | Texas Rock And Roll is a 10" vinyl album by American rockabilly singer Gene Summers. It was released by the French Big Beat label in 1981. It is a compilation of early rock 'n roll recordings by Gene Summers covering a time period from 1962 through 1975.
Production and album credits
Session musicians included: James McClung, Benny Williams, Gary Moon, René Hall, Plas Johnson, Earl Palmer, Red Callender, David (Dave) Martin, Glen Keener, Charlie Mendias, Mel Robinson, Bobby Rambo, Joe Ramirez Combo, Jack Castleberry, C. B. Williams, Ernest Walker, Joe Cook, Al Struble, Larry Jannasch, Kenny Hargis, Dan Edwards, Glen Struble, Eddie Wayne Hill, Joel Colbert, Leonard Walters, Joe Donnell, Tommy Morrell, Art McNulty, Ronnie Dawson, Marvin ("Smokey") Montgomery, Bill Hudson, Dale Sellers, Jerry Stembridge, David Briggs, Stu Basore, Charlie McCoy, Mike Leech and Hayward Bishop. The background vocal groups were The Five Masks and The Jordanaires plus (Al Struble, Dan Edwards & Glen Struble).
Track listing
"Wine Wine Wine"
"Leroy"
"Who Stole The Marker (From the Grave of Bonnie Parker)?"
"Mad Mad World"
"I've Had It"
"Mister Rock and Roll"
"I Got a Baby"
"A Man Can Cry"
"Rockin' Daddy"
"Big Blue Diamonds"
Discography references
Gene Summers discography from Rockin' Country Style, United States
Gene Summers discography from Rocky Productions, France
Gene Summers discography from Wangdangdula Finland
Gene Summers session data from Tapio's Fin-A-Billy, Finland
Sources
Liner notes "T |
https://en.wikipedia.org/wiki/Gene%20Summers%20in%20Nashville | Gene Summers In Nashville is a 10" vinyl album by Gene Summers. It was recorded at the Young 'Un Sound Studio Nashville, Tennessee in 1980 and contains rockabilly and country tracks performed by Summers. It was issued on the French Big Beat label in 1981.
Backing Summers were some of the Nashville A-Team session musicians including Dale Sellers, Jerry Stembridge, Stu Basore, Charlie McCoy, Mike Leech, Hayward Bishop and The Jordanaires. The session engineers were Stan Dacus and Chip Young. It was produced by Chip Young and was a Michael Cattin production.
Track listing
External links
Album back cover image with credits
1981 albums
Gene Summers albums |
https://en.wikipedia.org/wiki/Optical%20wireless | Optical wireless is the combined use of "optical" (optical fibre) and "wireless" (radio frequency) communication to provide telecommunication to clusters of end points which are geographically distant. The high capacity optical fibre is used to span the longest distances. A lower cost wireless link carries the signal for the last mile to nearby users.
See also
4.5G / 5G
References
Definition: Optical Wireless, SearchMobileComputing website.
Optical communications
Local loop
Fiber to the premises |
https://en.wikipedia.org/wiki/Pleurastrophyceae | The Pleurastrophyceae were a formerly recognized class of green algae, in the division Chlorophyta. It was created by Mattox and Stewart in 1984, containing four genera. More recent classifications tend to split the group. On the one hand, Tetraselmis seems to be a sister to the so-called UTC clade (Chlorophyceae, Trebouxiophyceae, and Ulvophyceae), thus making it part of the (paraphyletic) Prasinophyceae. The other three genera were Pleurastrum, Trebouxia, and Pseudotrebouxia, and most of the species which had been in those genera have been placed in the Trebouxiophyceae. However, Pleurastrum insigne, which had been specified as the type of Pleurastrophyceae, turns out to be part of the Chlorophyceae.
References
External links
Links to scientific references
Links to scientific databases
AlgaTerra database
Index Nominum Genericorum
Green algae classes
Historically recognized algae taxa |
https://en.wikipedia.org/wiki/Wall-associated%20kinase | Wall-associated kinases (WAKs) are one of many classes of plant proteins known to serve as a medium between the extracellular matrix (ECM) and cytoplasm of cell walls. They are serine-threonine kinases that contain epidermal growth factor (EGF) repeats, a cytoplasmic kinase and are located in the cell walls. They provide a linkage between the inner and outer surroundings of cell walls. WAKs are under a group of receptor-like kinases (RLK) that are actively involved in sensory and signal transduction pathways especially in response to foreign attacks by pathogens and in cell development. On the other hand, pectins are an abundant group of complex carbohydrates present in the primary cell wall that play roles in cell growth and development, protection, plant structure and water holding capacity.
Cell wall associated kinases are receptor-like protein kinases, found in plant cell walls, that have the capability to transmit signals directly by their cytoplasmic kinase domains. They usually link the plasma membrane to the protein and carbohydrate that composed the cell wall. The receptor-like proteins contain a cytoplasmic serine threonine kinase and a less conserved region; bound to the cell wall and contains a series of epidermal growth factor repeats. WAKs are found in various plants and crops like rice, and maize. In plants genome like Arabidopsis, WAKs, are encoded by five highly similar genes clustered in a 30-kb locus, among them WAK1 & WAK2 are highly distributed. They are |
https://en.wikipedia.org/wiki/Expansin | Expansins are a family of closely related nonenzymatic proteins found in the plant cell wall, with important roles in plant cell growth, fruit softening, abscission, emergence of root hairs, pollen tube invasion of the stigma and style, meristem function, and other developmental processes where cell wall loosening occurs. Expansins were originally discovered as mediators of acid growth, which refers to the widespread characteristic of growing plant cell walls to expand faster at low (acidic) pH than at neutral pH. Expansins are thus linked to auxin action. They are also linked to cell enlargement and cell wall changes induced by other plant hormones such as gibberellin, cytokinin, ethylene and brassinosteroids.
A subset of the β-expansins are also the major group-1 allergens of grass pollens.
Families
So far, two large families of expansin genes have been discovered in plants, named alpha-expansins (given the gene symbol EXPA) and beta-expansins (EXPB). Both families of expansins have been identified in a wide range of land plants, from angiosperms and gymnosperms to ferns and mosses. The model plant Arabidopsis thaliana contains around 26 different α-expansin genes and 6 β-expansin genes. A subset of β-expansins has evolved a special role in grass pollen, where they are known as group 1 grass pollen allergens. Plants also have a small set of expansin-like genes (named EXLA and EXLB) whose function has not been established. Some proteins in bacteria and fungi are known to |
https://en.wikipedia.org/wiki/Information%20criterion | Information criterion may refer to:
Information criterion (statistics), a method to select a model in statistics
Information criteria (information technology), a component of an information technology framework which describes the intent of the objectives |
https://en.wikipedia.org/wiki/List%20of%20Intel%20CPU%20microarchitectures | The following is a partial list of Intel CPU microarchitectures. The list is incomplete. Additional details can be found in Intel's Tick–tock model and Process–architecture–optimization model.
x86 microarchitectures
16-bit
8086 first x86 processor; initially a temporary substitute for the iAPX 432 to compete with Motorola, Zilog, and National Semiconductor and to top the successful Z80. 8088 version, with an 8-bit bus, used in the original IBM Personal Computer.
186 included a DMA controller, interrupt controller, timers, and chip select logic. A small number of additional instructions. The 80188 was a version with an 8-bit bus.
286 first x86 processor with protected mode including segmentation based virtual memory management. Performance improved by a factor of 3 to 4 over 8086. Included instructions relating to protected mode.
32-bit (IA-32)
i386 first 32-bit x86 processor. Introduced paging on top of segmentation which is the most commonly used memory protection technology in modern operating systems ever since. Many additional powerful and valuable new instructions.
i486 Intel's second generation of 32-bit x86 processors, introduced built-in floating point unit (FPU), 8 KB on-chip L1 cache, and pipelining. Faster per MHz than the 386. Small number of new instructions.
P5 original Pentium microprocessors, first x86 processor with super-scalar architecture and branch prediction.
P6 used in Pentium Pro, Pentium II, Pentium II Xeon, Pentium III, and Pentium III X |
https://en.wikipedia.org/wiki/State%20of%20War%20%28video%20game%29 | State of War is a real-time strategy game, developed by Cypron Studios and Cinemax and published by Crystal Interactive in 2001.
Classic versions of State of War and State of War: Warmonger were released in December 2018 on Steam.
Story
This description is told by narrator at the beginning of the game.
After centuries of continuous struggles, war and turmoil; humankind finally came together and founded the United Federation of Seven Continents (UFSC). It was decided that every member of the Federation would provide their armed forces to build a single military unit with the goal to protect the Earth and settle eventual conflicts. Thus it was no longer possible for any individual group to use military force to resolve their personal aim.
Within several years, the Federation created a Global Defense Network, known as "Overmind". Actually, it was a super intelligent mainframe computer - a unique work of hundreds of the most gifted scientists on the planet. It was operated by an intelligent software and consisted of 22 military bases worldwide located far from populated areas ready to act in case of the conflict. Since then, no machinery was ever controlled by man. Only the formal approval to activate "Overmind" had to be given by each UFSC representative.
Global society, however, carried its burdens. People suffering from spiritual emptiness sought refuge in organizations that offered salvation. The most influential among them was the Beho-Sunns. Charismatic leaders of the |
https://en.wikipedia.org/wiki/Frequency%20assignment | Frequency assignment is the authorization of use of a particular radio frequency.
In Article 1.18 of the International Telecommunication Union's (ITU) Radio Regulations (RR), the process is defined as "Authorization given by a frequency administration for a radio station to use a radio frequency or radio frequency channel under specified conditions".
Daily impact
Every day, users rely on assignment of frequencies for efficient use of such devices as:
cell phone
cordless phone
garage door opener
car key remote control
broadcast television and audio
Standard time broadcast
vehicle-speed radar, air traffic radar, weather radar
mobile radio
Global Positioning System (GPS) navigation
satellite TV broadcast reception; also backend signal dissemination
Microwave oven
Bluetooth
Wi-Fi
Zigbee
RFID devices such as active badges, passports, wireless gasoline token, no-contact credit-cards, and product tags
toll-road payment vehicle transponders
Citizen's band radio and Family Radio Service
Radio control, including Radio-controlled model aircraft and vehicles
wireless microphones and musical instrument links
Frequency assignment is also a special term, used by national frequency administrations. For other terms see table below.
See also
Radio station
Frequency administration
Spectrum management
Frequency coordinator
Broadcast license
Cellular frequencies
Earth observation satellites transmission frequencies
References / sources
International Telecommunication U |
https://en.wikipedia.org/wiki/IEEE%20802.11a-1999 | IEEE 802.11a-1999 or 802.11a was an amendment to the IEEE 802.11 wireless local network specifications that defined requirements for an orthogonal frequency-division multiplexing (OFDM) communication system. It was originally designed to support wireless communication in the unlicensed national information infrastructure (U-NII) bands (in the 5–6 GHz frequency range) as regulated in the United States by the Code of Federal Regulations, Title 47, Section 15.407.
Originally described as clause 17 of the 1999 specification, it is now defined in clause 18 of the 2012 specification and provides protocols that allow transmission and reception of data at rates of 1.5 to 54Mbit/s. It has seen widespread worldwide implementation, particularly within the corporate workspace. While the original amendment is no longer valid, the term "802.11a" is still used by wireless access point (cards and routers) manufacturers to describe interoperability of their systems at 5.8 GHz, 54 Mbit/s (54 x 106 bits per second).
802.11 is a set of IEEE standards that govern wireless networking transmission methods. They are commonly used today in their 802.11a, 802.11b, 802.11g, 802.11n, 802.11ac and 802.11ax versions to provide wireless connectivity in the home, office and some commercial establishments.
Description
IEEE802.11a is the first wireless standard to employ packet based OFDM, based on a proposal from Richard van Nee from Lucent Technologies in Nieuwegein. OFDM was adopted as a draft 802.11a |
https://en.wikipedia.org/wiki/Rock%20%27n%20Roll%20Volume%202. | Rock And Roll Volume 2. is a 12" vinyl album by Gene Summers and five other artists. This was the first album ever released on Summers. It was issued in 1973 on the Collector Records imprint, a re-issue label located in the Netherlands. It is not available on CD.
Production and album credits
Session musicians included: James McClung, Benny Williams, Gary Moon, Rene Hall, Plas Johnson, Earl Palmer, Red Callendar, David (Dave) Martin, Glen Keener, Charlie Mendias, Mel Robinson, Bobby Rambo, Joe Ramirez Combo, Jack Castleberry, C. B. Williams, Ernest Walker, Joe Cook, Al Struble, Larry Jannasch, Kenny Hargis, Dan Edwards, Glen Struble, Eddie Wayne Hill, Joel Colbert, Leonard Walters, Joe Donnell, Tommy Morrell, Art McNulty, Ronnie Dawson, Marvin ("Smokey") Montgomery, Bill Hudson, Dale Sellers, Jerry Stembridge, David Briggs, Stu Basore, Charlie McCoy, Mike Leech and Hayward Bishop. The background vocal groups were The Five Masks and The Jordanaires plus (Al Struble, Dan Edwards & Glen Struble). All the Summers tracks were recorded in Dallas and Los Angeles.
Track listing
"School of Rock 'n Roll" - Gene Summers and His Rebels
"Nervous" - Gene Summers and His Rebels
"Gotta Lotta That" - Gene Summers and His Rebels
"Twixteen" - Gene Summers and His Rebels
"Alabama Shake" - Gene Summers and the Tom Toms
"Strait Straight Skirt" - Gene Summers and His Rebels
"Stop at the Hop" - Don Eee
"Jack and Jill" - Warren Storm
"Movin' Out" - The Squires
"Rock On the Moon" - Jimmy Steward
"Sc |
https://en.wikipedia.org/wiki/Telequartz | The Telequartz Group of Mining Companies, founded by João Cosac in 1926, is Brazil's largest, longest-established and best-qualified miner, processor and exporter of rock crystals. Working also with other minerals, the group is the largest exporter of quartz in the world nowadays. Brazil is estimated to have 53 Mmt of reserves representing 95% of the known world supply.
The company
Known as the most qualified mining group for its operational structure, with the largest rock crystals stocks of the world, and experience in processing and exporting this mineral, Telequartz is the world leader in quartz market, exporting tons to Americas, Europe and Asia. Having capitalist giants, like Samsung, Swarovski and Concord, among their clients, the group operates its own mines located in quartz-rich areas of Bahia, Minas Gerais and Goiás states. Silica Sand Mining Company, also part of the group, have an agreement with Companhia Vale do Rio Doce for producing 10.000 tons of ferrosilica by year.
Entering the industrial sector
In 1975, Telequartz Group, financed X-tal do Brasil factory producing oscillators and high quality optic fiber made by their own artificial quartz produced in laboratory.
In 1988, Telequartz reached a joint venture with CVRD and Nisso Iwai Ltd. to build a U$20 million quartz powder plant in Minas Gerais, Brazil. The powder is an important constituent in the production of optic fibers, crucibles, oscillators, solar cells, wafers and integrated circuit packing |
https://en.wikipedia.org/wiki/Microbiology%20%28journal%29 | Microbiology is a monthly peer-reviewed scientific journal that covers research in all aspects of microbiology, including biochemistry, cell biology, molecular biology, developmental biology, physiology, pathogenicity, biodiversity, biotechnology, evolution, and genetics of microorganisms and their viruses. It also covers plant-microbe interactions and environmental and theoretical microbiology. The journal is published monthly by the Microbiology Society. It was established in January 1947 as the Journal of General Microbiology and obtained its current name in 1994. Since 2020, the editor-in-chief is Gavin H. Thomas (University of York), who took over from Tanya Parish (Seattle Children's), who served since 2015. The microbiologist and science writer Sir John Postgate FRS was editor from 1969 to 1974.
Abstracting and indexing
The journal is abstracted and indexed in:
BIOSIS Previews
Current Contents/Life Sciences
Science Citation Index
Scopus
According to the Retrieved 2023-07-13, the journal has an impact factor of 2.8 (2-year Journal Impact Factor).
References
External links
Microbiology journals
Delayed open access journals
Academic journals established in 1947
Monthly journals
English-language journals
Microbiology Society academic journals |
https://en.wikipedia.org/wiki/Piers%20Bohl | Piers Bohl (23 October 1865 – 25 December 1921) was a Latvian mathematician, who worked in differential equations, topology and quasi-periodic functions.
He was born in 1865 in Walk, Livonia, in the family of a poor Baltic German merchant. In 1884, after graduating from a German school in Viljandi, he entered the faculty of physics and mathematics at the University of Tartu. In 1893 Bohl was awarded his Master's degree. This was for an investigation of quasi-periodic functions. The notion of quasi-periodic functions was generalised still further by Harald Bohr when he introduced almost-periodic functions. He has been the first to prove the three-dimensional case of the Brouwer fixed-point theorem, but his work was not noticed at the time.
References
External links
Bohl biography at www-history.mcs.st-and.ac.uk
http://www.mathematics.lv/lms_10_years_after.pdf
1865 births
1921 deaths
People from Valka
People from Kreis Walk
Baltic-German people
Latvian mathematicians
University of Tartu alumni
Academic staff of Riga Technical University
Mathematicians from the Russian Empire |
https://en.wikipedia.org/wiki/Disodium%20octaborate | Disodium octaborate is a borate of sodium, a chemical compound of sodium, boron, and oxygen — a salt with elemental formula or , also written as . It is a colorless crystalline solid, soluble in water.
Disodium octaborate is traded either as a liquid concentrate, or as the tetrahydrate , a white odorless powder. It is used as an insecticide, and as a fungicide and algicide, and as a fire retardant., and as a boron micronutrient additive in fertilizers. Trade names include Bora-Care, Borathor, Termite Prufe, Board Defense, Polybor, Tim-bor, and Can-Bor.
Preparation
The anhydrous form can be crystallized from a molten mixture of sodium oxide and boric oxide .
Properties
Solubility
The salt dissolves in water to form forms viscous supersaturated solutions at elevated temperatures. Solubility of the tetrahydrate is 21.9% (wt) at .
Structure
The anhydrous salt exists in two stable crystalline forms, α and β.
The α form has monoclinic crystal structure, with the P21/a space group. The unit cell parameters at 273 K are: a = 650.7 pm, b = 1779 pm, c = 837.7 pm, β = 96.6 °, Z = 4. The structure contains two interlocking boron-oxygen frameworks, each of them consisting of alternating single and double rings composed of two triangles and a tetrahedron, the so called triborate and pentaborate groups. The two frameworks are connected by two (non-equivalent) sodium atoms, each surrounded by 8 oxygens, comprising finite chains of four polyhedra with shared edges. The thermal expans |
https://en.wikipedia.org/wiki/GeoVax | GeoVax is a clinical-stage biotechnology company which develops vaccines. GeoVax’s development platform uses Modified Vaccinia Ankara (MVA) vector technology, with improvements to antigen design and manufacturing capabilities. GeoVax uses recombinant DNA or recombinant viruses to produce virus-like particles (VLPs) in the person being vaccinated.
History
Formed in 2001 in Atlanta, Georgia, the approach was originally based on preclinical work done by Dr. Harriet Robinson from 1992 to 2002. In 2002, laboratory space, equipment and personnel were acquired and work on an HIV-1 vaccine development plan began. In May 2006, human clinical trials of the drug began. The company is now working on vaccines for Marburg, Lassa Fever, Ebola, Zika and Covid-19.
In January 2020, the company announced initiation of efforts to develop a vaccine against novel coronavirus disease (COVID-19) caused by the SARS-CoV-2 coronavirus. The GeoVax program has been added to the “Draft Landscape of COVID-19 Candidate Vaccines” by the World Health Organization.
On September 25, 2020, GeoVax closed an underwritten public offering, raising gross proceeds of $12.8 million. Concurrent with the offering, GeoVax common stock began trading on The Nasdaq Capital Market under the symbol “GOVX”.
Recently, the company began collaborating with Emory University on the development of a therapeutic vaccine for human papillomavirus (HPV) infection, with a specific focus on head and neck cancer (HNC).
Non-Covid Pi |
https://en.wikipedia.org/wiki/Peppermint%20Crisp | Peppermint Crisp is a milk chocolate bar filled with a multitude of thin cylinders of mint-flavoured 'cracknel' (which is a brittle crystalline/sugar concoction extruded in fine hollow tubes). Invented in South Africa by Wilson-Rowntree in the 1960s, it was eventually bought out and manufactured by Nestlé South Africa. A hugely popular chocolate bar in South Africa for many decades, it is now part of that country's culture - not only as a confectionery item, but also as a popular topping used in baking and desserts.
The Peppermint Crisp is sold in South Africa as both a 49 gram bar and a 150 gram slab. In New Zealand it is sold as a 49 gram bar, and in Australia as a 35 gram bar.
In South Africa, it forms the basis of the Caramel-Peppermint Crisp Tart, a hugely popular South African ice box dessert. It is also popular as a topping on sponge cakes and cupcakes. Nestlé South Africa also sells an ice cream containing Peppermint Crisp shards, as well as a Peppermint Crisp dessert topping. Burger King South Africa sells a fusion dessert containing vanilla ice cream and shards of Peppermint Crisp while Krispy Kreme South Africa sells a popular Peppermint Crisp Tart gourmet doughnut.
As in its native South Africa, the popular chocolate bar is also used as a crushed topping on pavlova cakes or other cakes in Australia and New Zealand.
Uses in cooking
The Peppermint Crisp can be used as an ingredient in mint chocolate cheesecakes and slices, and broken-up to decorate the top of |
https://en.wikipedia.org/wiki/PRINTS | In molecular biology, the PRINTS database is a collection of so-called "fingerprints": it provides both a detailed annotation resource for protein families, and a diagnostic tool for newly determined sequences. A fingerprint is a group of conserved motifs taken from a multiple sequence alignment - together, the motifs form a characteristic signature for the aligned protein family. The motifs themselves are not necessarily contiguous in sequence, but may come together in 3D space to define molecular binding sites or interaction surfaces. The particular diagnostic strength of fingerprints lies in their ability to distinguish sequence differences at the clan, superfamily, family and subfamily levels. This allows fine-grained functional diagnoses of uncharacterised sequences, allowing, for example, discrimination between family members on the basis of the ligands they bind or the proteins with which they interact, and highlighting potential oligomerisation or allosteric sites.
PRINTS is a founding partner of the integrated resource, InterPro, a widely used database of protein families, domains and functional sites.
References
External links
PRINTS Database (University of Manchester Bioinformatics Education and Research)
Biological databases
Department of Computer Science, University of Manchester |
https://en.wikipedia.org/wiki/Microcyte | A microcyte is an abnormally sized red blood cell. By definition it is 5 micrometers or smaller in diameter. It is often associated with several forms of anemia.
References
Dorland's Illustrated Medical Dictionary, 26th edn. Philadelphia, etc.: W.B. Saunders Co., 1985.
Stedman's Medical Dictionary, 27th edn. Philadelphia, etc.: Lippincott Williams & Wilkins, 2000.
Blood cells |
https://en.wikipedia.org/wiki/Ubuntu%20Titling | Ubuntu Titling or Ubuntu-Title is a rounded geometric sans-serif font. It was created by Andy Fitzsimon for use with the Ubuntu operating system and its derivatives. It is distributed under the GNU Lesser General Public License. Prior to the 10.04 release, the typeface was notably used in branding for the Ubuntu operating system and its related projects. Fitzsimon's design was created without any upper-case letters. A later release by Christian Robertson (who later created Roboto) added capitals and was released by Robertson at the "release candidate" stage. This was called Ubuntu Titling.
Ubuntu Titling was ultimately replaced for branding use with a variant from the Ubuntu Font Family.
References
External links
Homepage with the font of Andy Fitzsimon (doesn't have capital letters)
Version by Christian Robertson containing capital letters
Open-source typefaces
Ubuntu
Typefaces and fonts introduced in 2004
Geometric sans-serif typefaces |
https://en.wikipedia.org/wiki/Burst%20dimming | Burst dimming is a method to control dimming of cold cathode fluorescent lamps (CCFLs) and LEDs by using pulse width modulation (PWM) at approximately 100-300 Hz which is supposed to be above the noticeable flicker limit for the human eye.
This technique is sometimes used with TFT displays to control backlighting. An alternative dimming method is to control lamp current.
References
Display technology
Lighting
Liquid crystal displays |
https://en.wikipedia.org/wiki/Frequency%20coordination | Frequency Coordination is a technical and regulatory process that removes or mitigates radio-frequency interference between different radio systems that operate on the same frequency.
Normally frequency coordination is a function of an administration, such as a governmental spectrum regulator, as part of a formal regulatory process under the procedures of the Radio Regulations (an intergovernmental treaty text that regulates the radio frequency spectrum).
Before an administrations lets an operator operate a new radio communications network, it must undergo coordination in the following steps:
Inform other operators about the plans
Receive comments if appropriate
Conduct technical discussions with priority networks
Agree on technical and operational parameters
Gain international recognition and protection on the Master International Frequency Register
Bring the network into use
This coordination ensures that:
All administrations know the technical plans of other administrations.
All operators (satellite and terrestrial) can determine if unacceptable interference to existing and planned “priority” networks is likely, and have an opportunity to:
Object
Discuss and review
Reach technical and operational sharing agreements
Coordination is thus closely bound to date of protection or priority, defined by the date when the International Telecommunication Union receives complete coordination data. New planned networks must coordinate with all networks with an ear |
https://en.wikipedia.org/wiki/Investment%20center | An investment center is a classification used for business units within an enterprise.
The essential element of an investment center is that it is treated as a unit which is measured against its use of capital, as opposed to a cost or profit center, which are measured against raw costs or profits.
The Investment Center takes care of Revenues, Cost and Assets, while a Profit Center deals with revenues and costs and Cost Centers with costs only. This is a clear sign of how the span of control and span of accountability grow from Cost Centers to Investment ones.
The advantage of this form of measurement is that it tends to be more encompassing, since it accounts for all uses of capital. It is susceptible to manipulation by managers with a short term focus, or by manipulating the hurdle rate used to evaluate divisions.
References
See also
Cost center
Profit center
Management accounting
pt:Centro de responsabilidade#Centro de investimento |
https://en.wikipedia.org/wiki/Acrylic%20trophy | An acrylic trophy is an alternative to the traditional glass, or crystal trophy. Acrylic glass can be molded into a variety of forms, and corporations will often create custom promotional items shaped like their products. They are manufactured by pouring acrylic casting resin into a mold. Embedments are acrylic trophies that have an item embedded into the resin. Many materials can be placed in an embedment – paper, metal, acetate sheets, etc. This creates the effect of an item floating within the acrylic statue.
These trophies are commonly made from Lucite, a branded form of acrylic developed by DuPont. One of the earliest uses of Lucite was in windshields for fighter planes during World War II. Following the war, DuPont promoted various consumer applications of Lucite, including its use in lamps, beer taps, hairbrushes, and jewelry. By virtue of its versatility, Lucite opened up a range of possible design options for deal toys and trophies, often resulting in keen competition among investment banks for the most creative and sophisticated pieces.
Acrylic trophies can be manufactured in a variety of shapes, colors and sizes. The most common styles are clear rectangular “Billboards”, star shapes, circles, and pyramids. These are often engraved with corporate logos and personalized with the name of the recipient. They are also used in awards ceremonies for many organizations.
Deal toys are acrylic trophies used in the financial industry in recognition of sales achievements. D |
https://en.wikipedia.org/wiki/Standing%20crop | A standing crop is the total biomass of the living organisms present in a given environment. This includes both natural ecosystems and agriculture.
See also
Net Primary Production
Standing State
Bibliography
Boudouresque CF (1973) Les peuplements sciaphiles ; Recherches de bionomie analytique, structurale et expérimentale sur les peuplements benthiques sciaphiles de Méditerranée occidentale (fraction algale). Bulletin du Muséum d'histoire naturelle, 33, 147, PDF, 80 pages.
Campbell, Reece, Urry, Cain, et al. (2011) 9th ed. Biology. Benjamin Cummings. pg 1221
Fausch, K. D., Hawkes, C. L., & Parsons, M. G. (1988). Models that predict standing crop of stream fish from habitat variables: 1950-85 (http://www.treesearch.fs.fed.us/pubs/8730 résumé]).
Jenkins, R. M. (1968). The influence of some environmental factors on standing crop and harvest of fishes in US reservoirs.
References
External links
Models that predict standing crop of stream fish from habitat variables: 1950-85
Habitats
Ecosystems
Ecological metrics |
https://en.wikipedia.org/wiki/XEUBS-AM | XEUBS is a Mexican radio station that serves La Paz, Baja California Sur. It is owned by the Universidad Autónoma de Baja California Sur.
1180 AM is a United States clear-channel frequency, on which WHAM in Rochester, New York is the dominant Class A station.
External links
Radio UABCS Facebook
Radio Locator information on XEUBS
References
Spanish-language radio stations
Radio stations in La Paz, Baja California Sur
University radio stations in Mexico
Radio stations established in 1994
Daytime-only radio stations in Mexico |
https://en.wikipedia.org/wiki/XHPAL-FM | XHPAL-FM is a radio station in La Paz, Baja California Sur, broadcasting on the frequency of 95.9 MHz.
References
Spanish-language radio stations
Radio stations in La Paz, Baja California Sur |
https://en.wikipedia.org/wiki/Twixteen | "Twixteen" is a song written by Mary Tarver in 1958 and published by Ted Music, BMI. It was first recorded by Gene Summers and His Rebels in 1958 and issued by Jan/Jane Records. The "Twixteen" recording session took place at the Liberty Records Studios in Hollywood, California and featured René Hall and James McClung on guitar, Plas Johnson on saxophone, Earl Palmer on drums, and George "Red" Callendar on bass. The flipside of "Twixteen" was "I'll Never Be Lonely".
Reviews
Billboard in their January 26, 1959 issue, in the section 'Reviews of New Pop Records' on page 48, commented "She's not yet sixteen, is the meaning of this title according to the chanter on this winning rock and roller. It has a sound and Summers sells it well. It could move".
"Twixteen" cover versions
Runnin' Wild - Belgium
Teddy And The Tigers - Finland
Jimmy Velvit - United States (Re-written vocal adaptation titled " Waitin' For Elvis") (see Sources)
References
Gene Summers discography from Rocky Productions, France
Gene Summers discography from Wangdangdula Finland
Gene Summers session data from Tapio's Fin-A-Billy, Finland
Sources
Billboard Magazine, January 26, 1959 Reviews of New Pop Records, page 48 United States
Billboard Magazine, February 2, 1959, page 35 United States
Liner notes "The Ultimate School Of Rock & Roll" 1997 United States
"Cover Versions Of The Songs Made Famous By Gene Summers" 2007 United States
Article and sessionography in issue 15 (1977) of New Kommotion Magazine UK
Art |
https://en.wikipedia.org/wiki/Toby%20Mao | Tobias "Toby" Mao (born December 21, 1988) is a former world-class Rubik's Cube solver. Hailing from Hillsborough, California, Toby graduated from Crystal Springs Uplands School in 2007 and went on to study mathematics at Northwestern University in Evanston, Illinois. He is the younger brother of Beauty and the Geek second-season participant Tyson Mao, with whom he taught Will Smith to solve a Rubik's Cube for the 2006 film The Pursuit of Happyness. In 2006, Toby set the world record in speedcubing by solving the 3x3x3 cube in 10.48 seconds.
References
External links
Cube conqueror: Freshman Toby Mao's special talent - North by Northwestern
Photo of Toby and Tyson Mao
YouTube - Rubik's Cube Former World Record
1988 births
American people of Taiwanese descent
Living people
American people of Chinese descent
People from Hillsborough, California |
https://en.wikipedia.org/wiki/Soil%20biodiversity | Soil biodiversity refers to the relationship of soil to biodiversity and to aspects of the soil that can be managed in relative to biodiversity. Soil biodiversity relates to some catchment management considerations.
Biodiversity
According to the Australian Department of the Environment and Water Resources, biodiversity is "the variety of life: the different plants, animals and micro-organisms, their genes and the ecosystems of which they are a part." Biodiversity and soil are strongly linked, because soil is the medium for a large variety of organisms, and interacts closely with the wider biosphere. Conversely, biological activity is a primary factor in the physical and chemical formation of soils.
Soil provides a vital habitat, primarily for microbes (including bacteria and fungi), but also for microfauna (such as protozoa and nematodes), mesofauna (such as microarthropods and enchytraeids), and macrofauna (such as earthworms, termites, and millipedes). The primary role of soil biota is to recycle organic matter that is derived from the "above-ground plant-based food web".
Soil is in close cooperation with the wider biosphere. The maintenance of fertile soil is "one of the most vital ecological services the living world performs", and the "mineral and organic contents of soil must be replenished constantly as plants consume soil elements and pass them up the food chain".
The correlation of soil and biodiversity can be observed spatially. For example, both natural and agr |
https://en.wikipedia.org/wiki/Chirikov%20criterion | The Chirikov criterion or Chirikov resonance-overlap criterion
was established by the Russian physicist Boris Chirikov.
Back in 1959, he published a seminal article,
where he introduced the very first physical criterion for the onset of chaotic motion in
deterministic Hamiltonian systems. He then applied such a criterion to explain
puzzling experimental results on plasma confinement in magnetic bottles
obtained by Rodionov at the Kurchatov Institute.
Description
According to this criterion a deterministic trajectory will begin to move
between two nonlinear resonances in a chaotic and unpredictable manner,
in the parameter range
Here is the perturbation parameter,
while
is the resonance-overlap parameter, given by the ratio of the
unperturbed resonance width in frequency
(often computed in the pendulum
approximation and proportional to the square-root of perturbation),
and the frequency difference
between two unperturbed resonances. Since its introduction, the Chirikov criterion has become an important analytical tool for the determination of the chaos border.
See also
Chirikov criterion at Scholarpedia
Chirikov standard map and standard map
Boris Chirikov and Boris Chirikov at Scholarpedia
References
B.V.Chirikov, "Research concerning the theory of nonlinear resonance and stochasticity", Preprint N 267, Institute of Nuclear Physics, Novosibirsk (1969), (Engl. Trans., CERN Trans. 71-40 (1971))
B.V.Chirikov, "A universal instability of many-dimensional oscillat |
https://en.wikipedia.org/wiki/Gordon%20Arthur%20Riley | Gordon Arthur Riley (1 June 1911 – 7 October 1985) was an American biological oceanographer most associated with his studies of the dynamics of plankton ecosystems.
Early life and education
Born in Webb City, Missouri on June 1, 1911, Riley was educated within the state at Drury College and Washington University in St. Louis, graduating with a MS in embryology. He moved to Yale University in 1934, intending to work with the anatomist Ross Harrison, but instead became interested in limnology. Working with the ecologist G. Evelyn Hutchinson, he completed his doctoral thesis on the copper cycle of lakes in Connecticut. Subsequently, he continued to be interested in the productivity of lakes, but gradually expanded his studies to encompass salt water, ultimately moving into biological oceanography.
Career
Riley's oceanographic work focused on the influences affecting the population ecology of plankton systems in coastal and open ocean waters. His early work correlated phytoplankton production with regulating factors such as nutrients, light and zooplankton abundance. From this empirical base he went on to develop ecosystem models that explained the annual cycle of plankton ecosystems, most notably in his analysis of the Georges Bank region. His final publication concerned patchiness in plankton, the potential role of diel vertical migration in this, and reflected on what this implied for plankton modelling studies, including his own 1946 study.
After an extended period at |
https://en.wikipedia.org/wiki/Load%20pull | Load-pull is the colloquial term applied to the process of systematically varying the impedance presented to a device under test (DUT), most often a transistor, to assess its performance and the associated conditions to deliver that performance in a network. While load-pull itself implies impedance variation at the load port, impedance can also be varied at any of the ports of the DUT, most often at the source.
Load-pull is required when superposition is no longer applicable, which occurs under large-signal operating conditions that make linear approximations unusable. The term load-pull derives from classical oscillator characterization whereupon variation of the load impedance pulls the oscillation center frequency away from nominal. Source-pull is also used for noise characterization, which, although linear, requires multiple impedances to be presented at the source to enable simultaneous solution of an over-determined system that yields the four noise parameters.
Load-pull is the most common method globally for RF and MW power amplifier (PA) design, transistor characterization, semiconductor process development, and ruggedness analysis. A central theme of load-pull is management of nonlinearity versus analysis of nonlinearity, the latter being the domain of advanced mathematics that often yields little physical insight to nonlinear phenomena and suffers from an inability to accurately render actual behavior embedded in a network with significant parasitic and distribute |
https://en.wikipedia.org/wiki/David%20Little%20%28tight%20end%29 | David Gene Little (born April 18, 1961) is a former professional American football tight end in the National Football League for eight seasons for four teams. He played college football at Middle Tennessee State University. He can bench 450 lbs.
External links
NFL.com player page
1961 births
Living people
Players of American football from Fresno County, California
American football tight ends
Middle Tennessee Blue Raiders football players
Kansas City Chiefs players
Philadelphia Eagles players
Phoenix Cardinals players
Detroit Lions players
People from Selma, California |
https://en.wikipedia.org/wiki/Barber%E2%80%93Johnson%20diagram | A Barber–Johnson diagram is a method of presenting hospital statistics combining four different variables in a unique graph, introduced in 1973. The method constructs a scattergram where length of stay, turnover interval, discharges, and deaths per available bed are combined. These four variables have a common relationship between them and their combination in the diagram permitted a new improved way for analyzing efficiency and performance of the hospital sector. The most complete reference about how to construct the diagram could be found in Yates. In this book, the appendix explains in detail the way for elaborating this kind of diagram.
References
External links
https://web.archive.org/web/20060908085540/http://www.publichealth.pitt.edu/supercourse/SupercoursePPT/7011-8001/7891.ppt
Statistical charts and diagrams
Medical statistics |
https://en.wikipedia.org/wiki/God%27s%20Equation | God's Equation is the fourth album by the Norwegian progressive metal band Pagan's Mind. It was released on 9 November 2007 in Europe and on 15 January 2008 in the US.
The 2-disc limited edition version of the album contains a poster, including six bonus tracks, a video clip and wallpapers in a paperboard slipcase.
Track listing
Credits
Band members
Nils K. Rue − Vocals
Jørn Viggo Lofstad − Guitars
Steinar Krokmo − Bass
Stian Kristoffersen − Drums
Ronny Tegner − Keyboards
Other
"God's Equation" was mixed by Stefan Glaumann (of Rammstein) in Toytown Studios, Sweden.
References
2007 albums
Pagan's Mind albums
Limb Music albums |
https://en.wikipedia.org/wiki/Marvin%20Simon | Marvin Kenneth Simon (1939 – September 23, 2007) was a telecommunication engineer who worked extensively for 35 years in the area of modulation, coding, and synchronization for space, satellite, radio, and military communications and also performance evaluation of wireless telecommunication systems over fading channels.
Simon got his PhD from New York University in 1966, and worked at the Jet Propulsion Laboratory for the past few decades of his life. The fruits of his research have been successfully applied to the design of many of NASA's deep space and near-earth missions for which he has been earned 11 patents, 25 NASA Tech Briefs, 4 Space Act awards, and over 200 technical papers. He died of brain cancer in September 2007.
He was a Fellow of the IEEE, Fellow of the Iowa Academy of Education (IAE), and winner of the NASA Exceptional Service Medal and the NASA Exceptional Engineering Achievement Medal both in recognition of outstanding contributions in analysis and design of space communications systems. In addition, he is listed in Marquis Who's Who in America and other similar compilations.
In 1997 he was the recipient of the IEEE Edwin H. Armstrong Achievement Award for seminal contributions spanning three decades in the design and analysis of novel coherent digital communication systems, including synchronization and tracking, differential modulation and signal design, spread spectrum techniques, and trellis-coded modulation for fading channels. Most recently he was |
https://en.wikipedia.org/wiki/United%20Nations%20Security%20Council%20Resolution%20203 | United Nations Security Council Resolution 203, adopted on May 14, 1965, in the face of growing instability, a developing civil war and the probability of foreign intervention in the Dominican Republic, the Council called for a strict cease-fire and invited the Secretary-General to send a representative to the Dominican Republic to report to the Council on the present situation.
The resolution was passed unanimously.
See also
Dominican Civil War
List of United Nations Security Council Resolutions 201 to 300 (1965–1971)
Operation Power Pack
References
Text of the Resolution at undocs.org
External links
0203
1965 in the Dominican Republic
0203
May 1965 events |
https://en.wikipedia.org/wiki/List%20of%20Runge%E2%80%93Kutta%20methods | Runge–Kutta methods are methods for the numerical solution of the ordinary differential equation
Explicit Runge–Kutta methods take the form
Stages for implicit methods of s stages take the more general form, with the solution to be found over all s
Each method listed on this page is defined by its Butcher tableau, which puts the coefficients of the method in a table as follows:
For adaptive and implicit methods, the Butcher tableau is extended to give values of , and the estimated error is then
.
Explicit methods
The explicit methods are those where the matrix is lower triangular.
Forward Euler
The Euler method is first order. The lack of stability and accuracy limits its popularity mainly to use as a simple introductory example of a numeric solution method.
Explicit midpoint method
The (explicit) midpoint method is a second-order method with two stages (see also the implicit midpoint method below):
Heun's method
Heun's method is a second-order method with two stages. It is also known as the explicit trapezoid rule, improved Euler's method, or modified Euler's method. (Note: The "eu" is pronounced the same way as in "Euler", so "Heun" rhymes with "coin"):
Ralston's method
Ralston's method is a second-order method with two stages and a minimum local error bound:
Generic second-order method
Kutta's third-order method
Generic third-order method
See Sanderse and Veldman (2019).
for α ≠ 0, , 1:
Heun's third-order method
Van der Houwen's/Wray third-order meth |
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