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Involutory matrix-Properties-An involution is non-defective, and each eigenvalue equals ±1 , so an involution diagonalizes to a signature matrix.
A normal involution is Hermitian (complex) or symmetric (real) and also unitary (complex) or orthogonal (real). | milkshake721/2.1M-wiki-STEM |
Involutory matrix-Properties-The determinant of an involutory matrix over any field is ±1.If A is an n × n matrix, then A is involutory if and only if P+ = (I + A)/2 is idempotent. This relation gives a bijection between involutory matrices and idempotent matrices. Similarly, A is involutory if and only if P− = (I − A)... | milkshake721/2.1M-wiki-STEM |
Involutory matrix-Properties-If A is an involutory matrix in M(n, R), which is a matrix algebra over the real numbers, and A is not a scalar multiple of I, then the subalgebra {x I + y A: x, y ∈ R} generated by A is isomorphic to the split-complex numbers.
If A and B are two involutory matrices which commute with each ... | milkshake721/2.1M-wiki-STEM |
Pneumatic tool-Pneumatic tool-A pneumatic tool, air tool, air-powered tool or pneumatic-powered tool is a type of power tool, driven by compressed air supplied by an air compressor. Pneumatic tools can also be driven by compressed carbon dioxide (CO2) stored in small cylinders allowing for portability.Most pneumatic to... | milkshake721/2.1M-wiki-STEM |
Pneumatic tool-Advantages and disadvantages-Pneumatic tools have many benefits which have contributed to their rise in popularity. The benefits of using compressed air to power tools are: Inexpensive Safe to use Easy to operate Portable Low theft ratesThe primary disadvantage of pneumatic tools is the need for an air c... | milkshake721/2.1M-wiki-STEM |
Pneumatic tool-Technical terms-Pneumatic tools are rated using several metrics: Free Speed (rpm), Air Pressure (psi/bar), Air Consumption (cfm/scfm or m3/min), Horse Power (hp), and spindle size. Each individual tool has its own specific requirements which determine their compatibility with air compressor systems. | milkshake721/2.1M-wiki-STEM |
Pneumatic tool-Technical terms-Flow or airflow, related to air consumption in pneumatic tools, represents the quantity of compressed air that passes through a section over a unit of time. It is represented in l/min, m3, at the equivalent value in free air in conditions of standard reference atmosphere (SRA). For exampl... | milkshake721/2.1M-wiki-STEM |
Pneumatic tool-Types of pneumatic tools-Pneumatic tools come in many shapes and form, including small and large-sized hand tools.
The most common types of pneumatic tools include: | milkshake721/2.1M-wiki-STEM |
Protein xylosyltransferase-Protein xylosyltransferase-In enzymology, a protein xylosyltransferase (EC 2.4.2.26) is an enzyme that catalyzes the chemical reaction in which a beta-D-xylosyl residue is transferred from UDP-D-xylose to the sidechain oxygen atom of a serine residue in a protein. | milkshake721/2.1M-wiki-STEM |
Protein xylosyltransferase-Protein xylosyltransferase-This enzyme belongs to the family of glycosyltransferases, specifically the pentosyltransferases. The systematic name of this enzyme class is UDP-D-xylose:protein beta-D-xylosyltransferase. Other names in common use include UDP-D-xylose:core protein beta-D-xylosyltr... | milkshake721/2.1M-wiki-STEM |
Methylenedioxybenzylpiperazine-Methylenedioxybenzylpiperazine-1-(3,4-Methylenedioxybenzyl)piperazine (MDBZP, piperonylpiperazine) is a chemical compound of the piperazine chemical class related to benzylpiperazine (BZP). MDBZP has been sold as a designer drug and has even been found as an ingredient in street Ecstasy p... | milkshake721/2.1M-wiki-STEM |
YME1L1-YME1L1-ATP-dependent metalloprotease YME1L1 is an enzyme that in humans is encoded by the YME1L1 gene. YME1L1 belongs to the AAA family of ATPases and mainly functions in the maintenance of mitochondrial morphology. Mutations in this gene would cause infantile-onset mitochondriopathy. | milkshake721/2.1M-wiki-STEM |
YME1L1-Structure-Gene The YME1L1 gene is located at chromosome 10p14, consisting of 20 exons. Two transcript variants encoding different isoforms have been found for this gene.
Protein YME1L1 consists of 716 amino acids and is highly similar to all mitochondrial AAA proteases and in particular to yeast Yme1p. Three dif... | milkshake721/2.1M-wiki-STEM |
YME1L1-Function-YME1L1 is embedded in the inner mitochondrial membrane and is more abundant in tissues with a high content of mitochondria such as human adult heart, skeletal muscle, and pancreas RNA. YME1L1 is a member of the AAA family of ATPases and has an important role for the maintenance of mitochondrial morpholo... | milkshake721/2.1M-wiki-STEM |
YME1L1-Clinical significance-A homozygous mutation in the YME1L1 gene would cause infantile-onset mitochondriopathy, with severe intellectual disability, muscular impairments, and optic nerve atrophy. The missense mutation affects the MPP processing site and impairs YME1L1 maturation, leading to its rapid degradation, ... | milkshake721/2.1M-wiki-STEM |
Actinic cheilitis-Actinic cheilitis-Actinic cheilitis is cheilitis (lip inflammation) caused by long term sunlight exposure. Essentially it is a burn, and a variant of actinic keratosis which occurs on the lip. It is a premalignant condition, as it can develop into squamous cell carcinoma (a type of mouth cancer). | milkshake721/2.1M-wiki-STEM |
Actinic cheilitis-Signs and symptoms-AC almost always affects the lower lip and only rarely the upper lip, probably because the lower lip is more exposed to the sun. In the unusual cases reported where it affects the upper lip, this may be due to upper lip prominence. The commissures (corners of the mouth) are not usua... | milkshake721/2.1M-wiki-STEM |
Actinic cheilitis-Signs and symptoms-It is usually painless and persistent. | milkshake721/2.1M-wiki-STEM |
Actinic cheilitis-Signs and symptoms-The appearance is variable. White lesions indicate hyperkeratosis. Red, erosive or ulcerative lesions indicate atrophy, loss of epithelium and inflammation. Early, acute lesions may be erythematous (red) and edematous (swollen). With months and years of sun exposure, the lesion beco... | milkshake721/2.1M-wiki-STEM |
Actinic cheilitis-Signs and symptoms-When palpated, the lip may have a texture similar to rubbing the gloved finger along sandpaper.AC may occur with skin lesions of actinic keratosis or skin cancer elsewhere, particularly on the head and neck since these are the most sun exposed areas. Rarely it may represent a geneti... | milkshake721/2.1M-wiki-STEM |
Actinic cheilitis-Causes-AC is caused by chronic and excessive exposure to ultraviolet radiation in sunlight.
Risk factors include: Outdoor lifestyle: e.g. farmers, sailors, fishermen, windsurfers, mountaineers, golfers, etc. This has given rise to synonyms for this condition such as "sailor's lip" and "farmer's lip". ... | milkshake721/2.1M-wiki-STEM |
Actinic cheilitis-Prevention-To prevent AC from developing, protective measures could be undertaken such as avoiding mid-day sun, or use of a broad-brimmed hat, lip balm with anti UVA and UVB ingredients (e.g. para-aminobenzoic acid), or sun blocking agents (e.g. zinc oxide, titanium oxide) prior to sun exposure. | milkshake721/2.1M-wiki-STEM |
Actinic cheilitis-Treatment-This condition is considered premalignant because it may lead to squamous cell carcinoma in about 10% of all cases. It is not possible to predict which cases will progress into SCC, so the current consensus is that all lesions should be treated.Treatment options include 5-fluorouracil, imiqu... | milkshake721/2.1M-wiki-STEM |
Actinic cheilitis-Treatment-Medication Topical 5-fluorouracil (5-FU, Efudex, Carac) has been shown to be an effective therapy for diffuse, but minor actinic cheilitis. 5-fluorouracil works by blocking DNA synthesis. Cells that are rapidly growing need more DNA, so they accumulate more 5-fluorouracil, resulting in their... | milkshake721/2.1M-wiki-STEM |
Actinic cheilitis-Treatment-Procedures Both cryosurgery and electrosurgery are effective choices for small areas of actinic cheilitis. Cryosurgery is accomplished by applying liquid nitrogen in an open spraying technique. Local anesthesia is not required, but treatment of the entire lip can be quite painful. Cure rates... | milkshake721/2.1M-wiki-STEM |
Hereditary carrier-Hereditary carrier-A hereditary carrier (genetic carrier or just carrier), is a person or other organism that has inherited a recessive allele for a genetic trait or mutation but usually does not display that trait or show symptoms of the disease. Carriers are, however, able to pass the allele onto t... | milkshake721/2.1M-wiki-STEM |
Hereditary carrier-Carriers in autosomal inheritances-Autosomal dominant-recessive inheritance is made possible by the fact that the individuals of most species (including all higher animals and plants) have two alleles of most hereditary predispositions because the chromosomes in the cell nucleus are usually present i... | milkshake721/2.1M-wiki-STEM |
Hereditary carrier-Carriers in autosomal inheritances-In carriers the expression of a certain characteristic is recessive. The individual has both a genetic predisposition for the dominant trait and a genetic predisposition for the recessive trait, and the dominant expression prevails in the phenotype. In an individual... | milkshake721/2.1M-wiki-STEM |
Hereditary carrier-Carriers in gonosomal inheritances-Gonosomal recessive genes are also passed on by carriers. The term is used in human genetics in cases of hereditary traits in which the observed trait lies on the female sex chromosome, the X chromosome. The carriers are always women. Men cannot be carriers because ... | milkshake721/2.1M-wiki-STEM |
Hereditary carrier-Carriers in gonosomal inheritances-Women have two homologous sex chromosomes (XX). Therefore, women can be carriers of X-linked genes. Examples of traits inherited via the X chromosome are color blindness and the most common hereditary form of Haemophilia. Men are affected much more often than women. | milkshake721/2.1M-wiki-STEM |
Hereditary carrier-Carriers in gonosomal inheritances-Queen Victoria, and her daughters Princesses Alice and Beatrix, were carriers of the hemophilia gene (an abnormal allele of a gene, necessary to produce one of the blood clotting factors). Both had children who continued to pass on the gene to succeeding generations... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Immunologic adjuvant-In immunology, an adjuvant is a substance that increases or modulates the immune response to a vaccine. The word "adjuvant" comes from the Latin word adiuvare, meaning to help or aid. "An immunologic adjuvant is defined as any substance that acts to accelerate, prolong, or enha... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Immunologic adjuvant-There are many known adjuvants in widespread use, including aluminium salts, oils and virosomes. | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Overview-Adjuvants in immunology are often used to modify or augment the effects of a vaccine by stimulating the immune system to respond to the vaccine more vigorously, and thus providing increased immunity to a particular disease. Adjuvants accomplish this task by mimicking specific sets of evolu... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Overview-Types Inorganic compounds: potassium alum, aluminium hydroxide, aluminium phosphate, calcium phosphate hydroxide Oils: paraffin oil, propolis (only in preclinical studies), Adjuvant 65 (based on peanut oil. Adjuvant 65 was tested in influenza vaccines in the 1970s, but was never released c... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Overview-Organic adjuvants Freund's complete adjuvant is a solution of inactivated Mycobacterium tuberculosis in mineral oil developed in 1930. It is not safe enough for human use. A version without the bacteria, that is only oil in water, is known as Freund's incomplete adjuvant. It helps vaccines... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Adaptive immune response-In order to understand the links between the innate immune response and the adaptive immune response to help substantiate an adjuvant function in enhancing adaptive immune responses to the specific antigen of a vaccine, the following points should be considered: Innate immu... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Adaptive immune response-Upon activation, mast cells release heparin and histamine to effectively increase trafficking to and seal off the site of infection to allow immune cells of both systems to clear the area of pathogens. In addition, mast cells also release chemokines which result in the posi... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Adaptive immune response-First, adjuvants may help in the translocation of antigens to the lymph nodes where they can be recognized by T cells. This will ultimately lead to greater T cell activity resulting in a heightened clearance of pathogen throughout the organism. | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Adaptive immune response-Second, adjuvants may provide physical protection to antigens which grants the antigen a prolonged delivery. This means the organism will be exposed to the antigen for a longer duration, making the immune system more robust as it makes use of the additional time by upregula... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Adaptive immune response-Third, adjuvants may help to increase the capacity to cause local reactions at the injection site (during vaccination), inducing greater release of danger signals by chemokine releasing cells such as helper T cells and mast cells.
Fourth, they may induce the release of infl... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Toll-like receptors-The ability of the immune system to recognize molecules that are broadly shared by pathogens is, in part, due to the presence of immune receptors called toll-like receptors (TLRs) that are expressed on the membranes of leukocytes including dendritic cells, macrophages, natural k... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Medical complications-Humans Aluminium salts used in many human vaccines are regarded as safe by Food and Drug Administration. Although there are studies suggesting the role of aluminium, especially injected highly bioavailable antigen-aluminium complexes when used as adjuvant, in Alzheimer's disea... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Medical complications-An increased number of narcolepsy (a chronic sleep disorder) cases in children and adolescents was observed in Scandinavian and other European countries after vaccinations to address the H1N1 “swine flu” pandemic in 2009. Narcolepsy has previously been associated with HLA-subt... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Medical complications-Animals Aluminium adjuvants have caused motor neuron death in mice when injected directly onto the spine at the scruff of the neck, and oil–water suspensions have been reported to increase the risk of autoimmune disease in mice. Squalene has caused rheumatoid arthritis in rats... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Controversy-TLR signaling As of 2006, the premise that TLR signaling acts as the key node in antigen-mediated inflammatory responses has been in question as researchers have observed antigen-mediated inflammatory responses in leukocytes in the absence of TLR signaling. One researcher found that in ... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Controversy-Investigating the mechanisms which underlie TLR signaling has been significant in understanding why adjuvants used during vaccinations are so important in augmenting adaptive immune responses to specific antigens. However, with the knowledge that TLR activation is not required for the i... | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Controversy-Safety Reports after the first Gulf War linked anthrax vaccine adjuvants to Gulf War syndrome in American and British troops. The United States Department of Defense strongly denied the claims. | milkshake721/2.1M-wiki-STEM |
Immunologic adjuvant-Controversy-Discussing the safety of squalene as an adjuvant in 2006, the World Health Organisation stated "follow-up to detect any vaccine-related adverse events will need to be performed." No such followup has been published by the WHO. Subsequently, the American National Center for Biotechnolog... | milkshake721/2.1M-wiki-STEM |
Conductor-discriminant formula-Conductor-discriminant formula-In mathematics, the conductor-discriminant formula or Führerdiskriminantenproduktformel, introduced by Hasse (1926, 1930) for abelian extensions and by Artin (1931) for Galois extensions, is a formula calculating the relative discriminant of a finite Galois ... | milkshake721/2.1M-wiki-STEM |
Conductor-discriminant formula-Statement-Let L/K be a finite Galois extension of global fields with Galois group G . Then the discriminant equals dL/K=∏χ∈Irr(G)f(χ)χ(1), where f(χ) equals the global Artin conductor of χ | milkshake721/2.1M-wiki-STEM |
Conductor-discriminant formula-Example-Let L=Q(ζpn)/Q be a cyclotomic extension of the rationals. The Galois group G equals (Z/pn)× . Because (p) is the only finite prime ramified, the global Artin conductor f(χ) equals the local one f(p)(χ) . Because G is abelian, every non-trivial irreducible character χ is o... | milkshake721/2.1M-wiki-STEM |
Combination machine-Combination machine-A combination machine is a woodworking machine that combines the functions of two or more separate machines into a single unit. For example, a combination machine might consist of a tablesaw with a side-mounted jointer. Another common example of this type of machine is the jointe... | milkshake721/2.1M-wiki-STEM |
Combination machine-Design-Some combination machines run all of their functions from a single motor; others may use more than one. Cutter heads are often shared: for example a jointer-thicknesser may use the same cutter head for both functions. The machines rely upon well thought-out designs which allow the user to swi... | milkshake721/2.1M-wiki-STEM |
Combination machine-Advantages-One rationale for the production of these machines is space saving. A combination machine takes up much less space than the equivalent separate machines. Most European machines have a sliding table that tends to make them safer than typical North American table saws. Even though top end c... | milkshake721/2.1M-wiki-STEM |
Combination machine-Disadvantages-There are some trade offs with combination machines. Set up time is increased when moving from one function to another and back. In some cases, machine settings are lost during the change over and have to be re-established when changing back. In some lower end machines, there may be co... | milkshake721/2.1M-wiki-STEM |
Combination machine-The Shopsmith-The Shopsmith is a lathe-based multi-tool that uses a single motor to perform lathe, tablesaw, sanding, and drill press functions. Variations include horizontal boring and disc sander. The original Shopsmith 10E and 10ER were invented by Dr. Hans Goldschmidt of Albany, CA, in 1947; ma... | milkshake721/2.1M-wiki-STEM |
Combination machine-The Shopsmith-RLF Brands continues to manufacture and market a variety of add-on tools that can be run by the headstock. These tools include a bandsaw (little changed from the original 1957 version), wood shaper, jointer, belt sander, strip sander, scroll saw and thickness planer. Changes from one f... | milkshake721/2.1M-wiki-STEM |
Combination machine-The Shopsmith-One of the unique features of the Shopsmith is its method of speed control. Rather than multiple pairs of pulleys or an electronic speed control, the Mark V uses a Reeves-type continuously variable transmission consisting of two variable diameter pulleys controlled by a dial and worm g... | milkshake721/2.1M-wiki-STEM |
Combination machine-The Shopsmith-An injury suffered by the user of a Shopsmith gave the Supreme Court of California the opportunity to create the modern rule of strict liability for defective products in 1963. | milkshake721/2.1M-wiki-STEM |
Combination machine-European Combination Machine-Several companies in Austria, Italy, France and Belgium manufacture what is commonly known in North America as a Euro(pean) combination machine, which typically contains a sliding-table saw with a scoring blade, a shaper, a thicknesser, a jointer, and a mortiser. These m... | milkshake721/2.1M-wiki-STEM |
Combination machine-European Combination Machine-The European combination machine allows efficient processing of both rough-cut timber and sheet stock (i.e. plywood). The sliding table can work in conjunction with either the table saw or the shaper. Outfitted with an 8-foot sliding table and outrigger, a single person ... | milkshake721/2.1M-wiki-STEM |
Cohl Furey-Cohl Furey-Cohl Furey, also known as Nichol Furey, is a Canadian mathematical physicist. | milkshake721/2.1M-wiki-STEM |
Cohl Furey-Career-Furey has a bachelor's degree in mathematics and physics from Simon Fraser University (2005), Master's degree from the University of Cambridge (2006) and a Ph.D in theoretical physics from the University of Waterloo (2015). She was a research fellow at the University of Cambridge from 2016 to 2019 and... | milkshake721/2.1M-wiki-STEM |
Cohl Furey-Media recognition-In 2019, Wired.com listed her in their article "10 Women in Science and Tech Who Should Be Household Names". | milkshake721/2.1M-wiki-STEM |
Cohl Furey-Notable publications-Furey, Nichol; Hughes, Mia J. (2022-08-10). "Division algebraic symmetry breaking". Physics Letters B. 831: 137186. doi:10.1016/j.physletb.2022.137186. ISSN 0370-2693. | milkshake721/2.1M-wiki-STEM |
Cohl Furey-Notable publications-C. Furey, "Three generations, two unbroken gauge symmetries, and one eight-dimensional algebra", Phys. Lett. B, 785 (2018) p. 84-89 (See addendum, arXiv version C. Furey, "SU(3)C x SU(2)L x U(1)Y ( x U(1)X ) as a symmetry of division algebraic ladder operators", Eur. Phys. J. C, 78 5 (20... | milkshake721/2.1M-wiki-STEM |
1070 aluminium alloy-1070 aluminium alloy-1070 is a pure aluminium alloy. It is a wrought alloy with a high corrosion resistance and an excellent brazing ability. 1070 Aluminium alloy has aluminium, iron, silicon, zinc, vanadium, copper, titanium, magnesium, and manganese as minor elements. | milkshake721/2.1M-wiki-STEM |
1070 aluminium alloy-Applications-Aluminium 1070 alloy is used in the following areas: General industrial components Building and construction Transport Electrical material PS plates Strips for ornaments Communication cables Refrigerator and freezer cabinets | milkshake721/2.1M-wiki-STEM |
TextGrid-TextGrid-TextGrid is a research group with the goal of supporting access to and the exchange of information in the humanities and social sciences with the help of modern information technology (the grid).
The project is funded by the Federal Ministry of Education and Research (Germany). TextGrid is one project... | milkshake721/2.1M-wiki-STEM |
TextGrid-Project phases-The TextGrid project started in February 2006. During the first phase of the project the development of the software begun. In consequence an infrastructure for the virtual research environment was built. During the second project phase (June 2009 to May 2012) a productive version of the softwar... | milkshake721/2.1M-wiki-STEM |
TextGrid-Software-Scholars from humanities and cultural studies can do their research on textbased data jointly or alone by using the TextGrid software. This environment consists of two main components: The TextGrid Repository is long-term storage of subject specific contents where digital research data can be stored.... | milkshake721/2.1M-wiki-STEM |
TextGrid-Software-The TextGrid Laboratory is the client software of the virtual research environment and combines diverse services and tools within the interface that can be used intuitively. The TextGridLab can be extended and therefore be used by scholars from diverse fields of research and interest. The software is ... | milkshake721/2.1M-wiki-STEM |
TextGrid-Further services-User of TextGrid are able to contact the developers of the software and further involved persons. For this purpose there are different open mailing-lists available. Furthermore, user meetings are arranged on a regular basis and training courses and workshops are offered. | milkshake721/2.1M-wiki-STEM |
TextGrid-User projects-Meanwhile, a number of user cases and edition projects which are working with TextGrid are established. More information on these projects and their experiences with TextGrid can be found on the TextGrid Homepage. | milkshake721/2.1M-wiki-STEM |
TextGrid-Literature-TextGrid. In: Heike Neuroth, Martina Kerzel, Wolfgang Gentzsch (Hrsg.): Die D-Grid Initiative. Universitätsverlag Göttingen, Göttingen 2007, ISBN 978-3-940344-01-4, S. 64–66 ([1]).
Heike Neuroth, Felix Lohmeier, Kathleen Marie Smith: TextGrid. Virtual Research Environment for the Humanities. In: The... | milkshake721/2.1M-wiki-STEM |
Boehm garbage collector-Boehm garbage collector-The Boehm–Demers–Weiser garbage collector, often simply known as Boehm GC, is a conservative garbage collector for C and C++ developed by Hans Boehm, Alan Demers, and Mark Weiser.Boehm GC is free software distributed under a permissive free software licence similar to the... | milkshake721/2.1M-wiki-STEM |
Boehm garbage collector-Design-Hans Boehm describes the operation of the collector as follows: The collector uses a mark-sweep algorithm. It provides incremental and generational collection under operating systems which provide the right kind of virtual memory support. (Currently this includes SunOS[45], IRIX, OSF/1, L... | milkshake721/2.1M-wiki-STEM |
Boehm garbage collector-Design-Boehm GC can also run in leak detection mode in which memory management is still done manually, but the Boehm GC can check if it is done properly. In this way a programmer can find memory leaks and double deallocations. | milkshake721/2.1M-wiki-STEM |
Boehm garbage collector-Design-Boehm GC is also distributed with a C string handling library called cords. This is similar to ropes in C++ (trees of constant small arrays), but instead of using reference counting for proper deallocation, it relies on garbage collection to free objects. Cords are good at handling very l... | milkshake721/2.1M-wiki-STEM |
Boehm garbage collector-Operation-The garbage collector works with most unmodified C programs, simply by replacing malloc() with GC_MALLOC() calls, replacing realloc() with GC_REALLOC() calls, and removing free() calls. The code piece below shows how one can use Boehm instead of traditional malloc and free in C.
For co... | milkshake721/2.1M-wiki-STEM |
Boehm garbage collector-Uses and ports-The Boehm GC is used by many projects that are implemented in C or C++ like Inkscape, as well as by runtime environments for a number of other languages, including Crystal, the Codon high performance python compiler, the GNU Compiler for Java runtime environment, the Portable.NET ... | milkshake721/2.1M-wiki-STEM |
Porkchop plot-Porkchop plot-In orbital mechanics, a porkchop plot (also pork-chop plot) is a chart that shows contours of equal characteristic energy (C3) against combinations of launch date and arrival date for a particular interplanetary flight. The chart shows the characteristic energy ranges in zones around the loc... | milkshake721/2.1M-wiki-STEM |
Porkchop plot-Porkchop plot-By examining the results of the porkchop plot, engineers can determine when a launch opportunity exists (a 'launch window') that is compatible with the capabilities of a particular spacecraft. A given contour, called a porkchop curve, represents constant C3, and the center of the porkchop th... | milkshake721/2.1M-wiki-STEM |
Porkchop plot-Math-The general form of characteristic energy can be computed as: where v ∞ {\textstyle v_{\infty }\,} is the orbital velocity when the orbital distance tends to infinity. Note that, since the kinetic energy is 1 2 m v 2 {\textstyle {\frac {1}{2}}mv^{2}} , C3 is in fact equal to twice the magnitude of ... | milkshake721/2.1M-wiki-STEM |
Porkchop plot-Use-For the Voyager program, engineers at JPL plotted around 10,000 potential trajectories using porkchop plots, from which they selected around 100 that were optimal for the mission objectives. The plots allowed them to reduce or eliminate planetary encounters taking place over the Thanksgiving or Christ... | milkshake721/2.1M-wiki-STEM |
Solar eclipse of March 20, 2034-Solar eclipse of March 20, 2034-A total solar eclipse will occur on Monday, March 20, 2034. A solar eclipse occurs when the Moon passes between Earth and the Sun, thereby totally or partly obscuring the image of the Sun for a viewer on Earth. A total solar eclipse occurs when the Moon's ... | milkshake721/2.1M-wiki-STEM |
Solar eclipse of March 20, 2034-Related eclipses-Solar eclipses of 2033–2036 This eclipse is a member of a semester series. An eclipse in a semester series of solar eclipses repeats approximately every 177 days and 4 hours (a semester) at alternating nodes of the Moon's orbit. | milkshake721/2.1M-wiki-STEM |
Solar eclipse of March 20, 2034-Related eclipses-Saros 130 This eclipse is a part of Saros cycle 130, repeating every 18 years, 11 days, containing 73 events. The series started with partial solar eclipse on August 20, 1096. It contains total eclipses from April 5, 1475 through July 18, 2232. There are no annular eclip... | milkshake721/2.1M-wiki-STEM |
Solar eclipse of March 20, 2034-Related eclipses-Tritos series This eclipse is a part of a tritos cycle, repeating at alternating nodes every 135 synodic months (≈ 3986.63 days, or 11 years minus 1 month). Their appearance and longitude are irregular due to a lack of synchronization with the anomalistic month (period o... | milkshake721/2.1M-wiki-STEM |
Solar eclipse of March 20, 2034-Related eclipses-Metonic series The metonic series repeats eclipses every 19 years (6939.69 days), lasting about 5 cycles. Eclipses occur in nearly the same calendar date. In addition, the octon subseries repeats 1/5 of that or every 3.8 years (1387.94 days). All eclipses in this table o... | milkshake721/2.1M-wiki-STEM |
Tumor-like disorders of the lung pleura-Tumor-like disorders of the lung pleura-Tumor-like disorders of the lung pleura are a group of conditions that on initial radiological studies might be confused with malignant lesions. Radiologists must be aware of these conditions in order to avoid misdiagnosing patients. Exampl... | milkshake721/2.1M-wiki-STEM |
Tumor-like disorders of the lung pleura-Pleural Plaque-Pathophysiology Exposure to asbestos fibers reach the pleura of the lungs through the lymphatic channels or blood stream. Historically, ship builders and insulation workers are at greater risk.
Symptoms Affected persons are usually asymptomatic.
Diagnosis On radiol... | milkshake721/2.1M-wiki-STEM |
Tumor-like disorders of the lung pleura-Thoracic Splenosis-Thoracic splenosis is splenosis that migrated to the thoracic cavity.
Pathophysiology Following thoracoabdominal trauma, most commonly a penetrating injury, laceration of the diaphragm, and spleen allows ectopic splenic tissue to reach the pleural space of the ... | milkshake721/2.1M-wiki-STEM |
Tumor-like disorders of the lung pleura-Catamenial pneumothorax-Pathophysiology Ectopic endometrial tissue reaches the pleural space of the lung or the right hemi-diaphragmatic region and erodes the visceral pleura, causing the formation of a spontaneous pneumothorax. The condition is often cyclical, due to its associa... | milkshake721/2.1M-wiki-STEM |
Tumor-like disorders of the lung pleura-Pleural Pseudotumor-Pathophysiology Initial formation of a pleural effusion causes retraction of the lung lobules and widening of the fissures. This widening of the fissures allows the accumulation of liquid and the formation of a well-defined lenticular lesion.
Symptoms Affected... | milkshake721/2.1M-wiki-STEM |
Tumor-like disorders of the lung pleura-Diffuse Pleural Thickening-Pathophysiology Inflammatory pleuritis causes fusion of the parietal and visceral pleura of the lungs. In most cases, initial formation of empyema or hemothorax is the triggering factor for this inflammatory reaction. However, it can also be associated ... | milkshake721/2.1M-wiki-STEM |
Tumor-like disorders of the lung pleura-Diffuse Pulmonary Lymphangiomatosis-Pathophysiology Congenital anomaly causes abnormal proliferation and dilation of lymphatic channels.
Symptoms Affected persons are usually young adults that present with progressive dyspnea. | milkshake721/2.1M-wiki-STEM |
Tumor-like disorders of the lung pleura-Diffuse Pulmonary Lymphangiomatosis-Diagnosis On radiological studies, diffuse lesions are visualized throughout the thoracic cavity using CT scans. The location of the lesions is mostly in the upper lobes of the lungs, usually in a lymphatic distribution. Thickening of the pleur... | milkshake721/2.1M-wiki-STEM |
Tumor-like disorders of the lung pleura-Diffuse Pulmonary Lymphangiomatosis-Treatment Thoracentesis and pericardiocentesis are procedures performed to remove excess fluid in the pleural and pericardial spaces, respectively. There is evidence in the literature that chemotherapy and radiation therapy helps to improve sym... | milkshake721/2.1M-wiki-STEM |
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