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KKR 25 is a galaxy 6.1 million light years (1.90 million parsecs) away from the Earth. is located outside the Local Group but the Local group is the nearest galaxy group with the M81 Group being the second nearest. | https://en.wikipedia.org/wiki?curid=48848288 |
NGC 6215 (also known as "PGC 59112") is a spiral galaxy located in the constellation Ara. It is designated as SA(s)c in the galaxy morphological classification scheme. It was discovered by astronomer John Herschel on 9 July 1836.<ref name="The NGC/IC Project"></ref> is part of galaxy group NGC 6221/15, which includes b... | https://en.wikipedia.org/wiki?curid=48848546 |
George H. Denton (born 14 December 1939 in Orono, Maine, USA) is a Professor of Geological Sciences and Quaternary Studies at the University of Maine. Denton earned his Ph.D. at the Yale University in 1965, and was the first scientist from the University of Maine elected to the National Academy of Sciences. His primary... | https://en.wikipedia.org/wiki?curid=48867329 |
George H. Denton In 1990, he received the prestigious Vega Medal (Gold) from the Swedish Society for Anthropology and Geography and in 1996 he was elected to the Royal Swedish Academy of Sciences. Denton's research has inspired several generations of students, many of whom have picked up researching in Earth Science. | https://en.wikipedia.org/wiki?curid=48867329 |
Victoria Lieu K.O. was a Chinese entomologist known for her studies of "Aegeriidae" (mulberry borers) and "Cerambycidae" (citrus borers). | https://en.wikipedia.org/wiki?curid=48871130 |
The Star of Bethlehem (2007 film) The Star of Bethlehem is a 2007 documentary by Frederick A. "Rick" Larson to show what he found when he searched for clues about the Star of Bethlehem. Larson used the Starry Night astronomy computer program along with an article written by astronomer Craig Chester; based in part on th... | https://en.wikipedia.org/wiki?curid=48896127 |
The Star of Bethlehem (2007 film) He also believes that the Star of Bethlehem, is Jupiter, a wandering star, and it stopped over Bethlehem during its retrograde motion on December 25, 2 BC. Larson believes King Herod the Great died in 1 BC, although almost all other experts, including astronomer David Hughes and astron... | https://en.wikipedia.org/wiki?curid=48896127 |
The Star of Bethlehem (2007 film) It received five Doves from the Dove Foundation, which considered the film acceptable for all ages. Christian Cinema reviewer Angela Walker wrote, "The Star of Bethlehem doesn't have an MPAA rating, but the nature of the subject would probably earn it a PG for thematic elements (that b... | https://en.wikipedia.org/wiki?curid=48896127 |
Karl Friedrich Ermisch (13 July 1898 – 22 July 1970) was a German teacher and entomologist. Ermisch was born in Dresden, Germany. His studies to become a teacher were interrupted by World War I, but in 1921, he became a teacher in Sohl. He spent 1933 to 1945 in Dusseldorf, returning to Sohl in 1945 to resume his teachi... | https://en.wikipedia.org/wiki?curid=48918607 |
The Natural History of Aleppo is a 1756 book by naturalist Alexander Russell on the natural history of Aleppo. In 1794 his half-brother, Patrick Russell, revised and expanded the text in a second edition. The book is significant for its quality, the contemporary interest it attracted, and for being a product of the Sco... | https://en.wikipedia.org/wiki?curid=48922850 |
Pablo Groeber (born Paul Friedrich Karl Gröber; 1885–1964) was a German geologist known for his contributions to the understanding of the geology of Tien Shan in Central Asia and the Andes of Nequén and Mendoza Province in Argentina. | https://en.wikipedia.org/wiki?curid=48943485 |
Barcelona astrolabe The astrolabe of Barcelona is considered the most ancient astrolabe with Carolingian characters that has survived in the Christian Occident. The French researcher Marcel Destombes founded the astrolabe, and left it as legacy to the Institute of the Arab World of Paris in 1983. The Academy of Science... | https://en.wikipedia.org/wiki?curid=48944856 |
Barcelona astrolabe and the latitude of Barcelona (41–30), which archdeacon in those dates was Sunifred Llobet, to whom is attributed the authorship of the Ripoll's manuscript: ms.225, which contains the description of an astrolabe, has led the scholars to attribute the paternity of the astrolabe to this famous astrono... | https://en.wikipedia.org/wiki?curid=48944856 |
NGC 524 is a lenticular galaxy in the constellation Pisces. It is at a distance of about 90 million light-years away from Earth. In the central bulge of the galaxy is visible gas forming a spiral structure. It is the largest galaxy in a small galaxy group, the group, which is associated with NGC 488 and its group. It w... | https://en.wikipedia.org/wiki?curid=48946287 |
Wawrzyniec Teisseyre Wawrzyniec Karol de Teisseyre (1860–1939) was a Polish geologist who is known for his work on the southern part of the Trans European Suture Zone and Galician and Romanian geology. was born in Cracow (Poland) of French ancestry. He studied at the University of Vienna and the Mining Academy in Leobe... | https://en.wikipedia.org/wiki?curid=48952302 |
NGC 6394 is a barred spiral galaxy located in the constellation Draco. It is designated as SBb in the galaxy morphological classification scheme and was discovered by the American astronomer Lewis A. Swift on 7 July 1885.<ref name="NASA/IPAC"></ref> | https://en.wikipedia.org/wiki?curid=48954957 |
Plant press A plant press is a set of equipment used by botanists to flatten and dry field samples so that they can be easily stored. A professional plant press is made to the standard maximum size for biological specimens to be filed in a particular herbarium. A flower press is a similar device of no standard size tha... | https://en.wikipedia.org/wiki?curid=48955231 |
Plant press William Withering English botanist, geologist, chemist and physician wrote popular books on British botany, and by describing the screw-down plant press (and the vasculum) he brought it to the attention of amateur naturalists in Britain around 1771. | https://en.wikipedia.org/wiki?curid=48955231 |
Morro Solar Group The () is a stratigraphic group of Mesozoic-aged sedimentary formations exposed near Lima, Peru. The groups formations more specifically of Berriasian and Valanginian age (Early Cretaceous) and overlies the Jurassic Puente Piedra Group and underlies the Cretaceous Pamplona Formation. The is intruded b... | https://en.wikipedia.org/wiki?curid=48955269 |
Yojiro Kimura is the authority for 58 taxa, such as "Hypericum hayatae" | https://en.wikipedia.org/wiki?curid=48963201 |
Scallion virus X (SVX) is a plant virus that infects "Allium chinense", the Chinese scallion. It is a member of the genus "Potexvirus". It is most closely related to "Narcissus mosaic virus". Its genome is 6987 nts long. | https://en.wikipedia.org/wiki?curid=48978405 |
German Society for Plant Sciences The (also known as German Botanical Society, Deutsche Botanische Gesellschaft, DBG) is a non-profit network for plant sciences and botany in the German-speaking area. It represents plant scientists, promotes scientific botany nationally and internationally. It was founded 1882 at Eisen... | https://en.wikipedia.org/wiki?curid=48991382 |
Heterofullerene Heterofullerenes are classes of fullerenes, at least one carbon atom is replaced by another element. Based on spectroscopy, substitutions have been reported with boron (borafullerenes), nitrogen (azafullerenes), oxygen, arsenic, germanium, phosphorus, silicon, iron, copper, nickel, rhodium and iridium. ... | https://en.wikipedia.org/wiki?curid=48995651 |
Chemoproteomics is an approach to discovering mechanisms for regulating biological pathways for the purpose of designing new pharmaceutical therapies. It is a chemical proteomic method for pharmacological discovery research. can enable drug discovery. It is a method for identifying protein targets and potential off-tar... | https://en.wikipedia.org/wiki?curid=48999251 |
Biotechnology Innovation Organization The (BIO) is the largest trade organization in the world that represents the biotechnology industry. On January 4, 2016 the Biotechnology Industry Organization changed its name to be the Biotechnology Innovation Organization. BIO holds a trade meeting each year in the United States... | https://en.wikipedia.org/wiki?curid=49001977 |
Biotechnology Innovation Organization Examples of its public lobbying efforts, include support for development of biofuels such as those produced from algae, genetically modified crops, strong intellectual property rights, and for a more efficient and predictable regulatory process for new food and drug products. In Ju... | https://en.wikipedia.org/wiki?curid=49001977 |
Biotechnology Innovation Organization Greenwood Leadership of BIO is vested in a 100+ member board. As of 2019, John Maraganore, PhD., president and chief executive officer of Alnylam Pharmaceuticals, Inc., was chairman, and James Greenwood was president and CEO. Ron Cohen, CEO of Acorda, preceded Maraganore as chair, ... | https://en.wikipedia.org/wiki?curid=49001977 |
Advanced Scientific Data Format (ASDF) is a proposed replacement to the FITS standard for astronomical images and other astronomical data. The metadata is contained in a YAML header followed by binary or ASCII data. The Flexible Image Transport System FITS standard is a widely used data format in astronomy that incorpo... | https://en.wikipedia.org/wiki?curid=49002199 |
Borafullerene Borafullerenes are a class of heterofullerenes in which the element substituting for carbon is boron. They are also a member of the boron carbides class of materials that include Tetrabor (B4C). | https://en.wikipedia.org/wiki?curid=49017613 |
TSUP family The 4-Toluene Sulfonate Uptake Permease (TSUP) family (TC# 2.A.102) is also referred to as the TauE/SafE/YfcA/DUF81 Family. Although its members have not been rigorously characterized, evidence is available that at least some members function in the transport of sulfur containing organic compounds. These in... | https://en.wikipedia.org/wiki?curid=49033936 |
Adolph Speyer (28 April 1812, Arolsen – 14 October 1892, Rhoden, Waldeck ) was a German entomologist who specialised in Lepidoptera, especially Hesperiidae. Dr. wrote more than 70 papers on butterflies and their distribution. partial list | https://en.wikipedia.org/wiki?curid=49042865 |
Elqui-Limarí Batholith The is a group of plutons in the Andes of Chile and Argentina between the latitudes of 28 and 30° S. The plutons of the batholith were emplaced and cooled in the Late Paleozoic and the earliest Mesozoic. Some of the plutons were emplaced in a context of crustal thickening related to the San Rafae... | https://en.wikipedia.org/wiki?curid=49050360 |
Coastal Batholith of central Chile The is a group of plutons in the Chilean Coast Range of Central Chile appearing contiguously from 33° S to 38° S. At a latitude of 40° S an outlying group of plutons of the batholith appear in a more eastward position in the Andes. Together with the Elqui-Limarí Batholith and the Cola... | https://en.wikipedia.org/wiki?curid=49050847 |
Oxalotrophic bacteria are bacteria capable of using oxalate as their sole source of carbon and energy. Oxalate is the anion of a salt of oxalic acid; oxalotrophs often consume calcium oxalate. bacteria are often facultative methylotrophs. | https://en.wikipedia.org/wiki?curid=49057371 |
Clay chemistry is an applied subdiscipline of chemistry which studies the chemical structures, properties and reactions of or involving clays and clay minerals. It is a multidisciplinary field, involving concepts and knowledge from inorganic and structural chemistry, physical chemistry, materials chemistry, analytical ... | https://en.wikipedia.org/wiki?curid=49059554 |
Clay chemistry It also plays an important role in the fate of most Ca arriving from land (river water) into the seas. The ability to change and control the CEC of clay minerals offers a valuable tool in the development of selective adsorbants with applications as varied as chemical sensors or pollution cleaning substan... | https://en.wikipedia.org/wiki?curid=49059554 |
Clay chemistry The possibility to disperse nanometric scaled clay mineral particles into a matrix of polymer, with the formation of an inorganic-organic nanocomposite has prompted a large resurgence in the study of these minerals from the late 1990s. In addition, study of clay chemistry is also of great relevance to th... | https://en.wikipedia.org/wiki?curid=49059554 |
Mécanique analytique (1788–89) is a two volume French treatise on analytical mechanics, written by Joseph-Louis Lagrange, and published 101 years following Isaac Newton's "Philosophiæ Naturalis Principia Mathematica". It consolidated into one unified and harmonious system, the scattered developments of contributors suc... | https://en.wikipedia.org/wiki?curid=49067628 |
Mécanique analytique to dispose, "once and for all", of the reasoning necessary to resolve mechanical problems, by embodying as much as possible of it in a single formula. This he did. Every case... can now be dealt with by a very simple... schema; and whatever reasoning is left is performed by purely mechanical method... | https://en.wikipedia.org/wiki?curid=49067628 |
Tethersonde A tethersonde is a radiosonde attached to a fixed or tethered balloon, used in atmospheric science. The balloon is usually larger than a balloon used for upper-air soundings, and the tether usually limits the sounding to the boundary layer. The radiosonde is typically moved up and down the tether to get mul... | https://en.wikipedia.org/wiki?curid=49068504 |
Carbon Neutral Cities Alliance The (CNCA or “Alliance”) is a collaboration of leading global cities working to cut greenhouse gas emissions by 80% or more by 2050 or sooner (“80x50”) — the most aggressive greenhouse gas reduction targets undertaken by any cities across the globe. The Alliance aims to address what it wi... | https://en.wikipedia.org/wiki?curid=49070718 |
Methane functionalization is the process of converting methane in its gaseous state to another molecule with a functional group, typically methanol or acetic acid, through the use of transition metal catalysts. In the realm of carbon-hydrogen bond activation and functionalization (C-H activation/functionalization), man... | https://en.wikipedia.org/wiki?curid=49072305 |
Methane functionalization The main strategy currently used to increase the reactivity of methane uses transition metal complexes to activate the carbon-hydrogen bonds. In a typical C-H activation mechanism, a transition metal catalyst coordinates to the C-H bond to cleave it, and convert it into a bond with a lower bon... | https://en.wikipedia.org/wiki?curid=49072305 |
Methane functionalization The process is simplified down into three main steps: (1) C-H activation, (2) a redox reaction to form an octahedral intermediate, followed by (3) the formation of the carbon-oxygen bond to form methanol (). Sigma bond metathesis involves the formation of new C-H and metal-carbon bonds, where ... | https://en.wikipedia.org/wiki?curid=49072305 |
Methane functionalization In general, alkanes of various lengths have typically been functionalized by a number of more commonly known reactions: electrophilic activation (Shilov system, see above), dehydrogenation, borylation, hydrogen-deuterium exchange, and carbene/nitrene/oxo insertion. The functionalization of met... | https://en.wikipedia.org/wiki?curid=49072305 |
Methane functionalization The mechanism for this system is similar to the one described above, where methane is first activated electrophilically to form a methyl-platinum intermediate. The Pt(II) complex is then oxidized to Pt(IV) as two sulfuric acid groups are added to the complex. The reductive elimination of methy... | https://en.wikipedia.org/wiki?curid=49072305 |
Methane functionalization Minor side products were formed, including methyltrifluoroacetate and methylsulfate. T. Don Tilley and coworkers were able to utilize the process of sigma-bond metathesis to design catalytic systems that work by the formation of carbon-carbon bonds. They first demonstrated an example using a s... | https://en.wikipedia.org/wiki?curid=49072305 |
Methane functionalization The general mechanism for this cycle begins with the reaction of an electron-poor metal center with a diazocompound to form a metallo-carbene intermediate. In order for this reaction to occur, the diazocompound must be very electrophilic, since the C-H bond is such a poor nucleophile as well a... | https://en.wikipedia.org/wiki?curid=49072305 |
Methane functionalization In these conditions, scCO behaves as a liquid, and since fluorinated compounds can dissolve easily in scCO, highly fluorinated silver-based catalysts were developed and tested with methane and ethyl diazoacetate. However, under the reaction conditions, only 19% yield of ethyl propionate was ab... | https://en.wikipedia.org/wiki?curid=49072305 |
Brazilian Journal of Geology (formerly Revista Brasileira de Geociências) is a quarterly peer-reviewed scientific journal published by the Sociedade Brasileira de Geologia, Brazil's main geology society. The journal covers the field of geology and related earth sciences, primarily on issues that are relevant to Brazil ... | https://en.wikipedia.org/wiki?curid=49123152 |
Paranapanema block The is a coherent block of lithosphere located in southeastern South America spanning roughly the same area as the Paraná Basin. The existence of a tectonically stable zone beneath the Paraná Basin was first suggested in 1975. Despite difficulties in accessing the buried it is inferred it must be com... | https://en.wikipedia.org/wiki?curid=49131003 |
Adamastor Ocean The was a "proto-Atlantic" ocean that formed with the break-up of the Rodinia supercontinent around 780-750 Ma. It separated the Río de la Plata Craton from the Congo Craton. The inversion of the began about 640 Ma with the development of a large back-arc basin along the western margin of the Kalahari C... | https://en.wikipedia.org/wiki?curid=49131449 |
Sparks-Thomas award The purpose of the Sparks-Thomas Award, given by the American Chemical Society, Rubber Division, is to recognize and encourage outstanding contributions and innovations in the field of elastomers by younger scientists, technologists, and engineers. Recipients | https://en.wikipedia.org/wiki?curid=49132760 |
Oscar Harger (January 12, 1843 – November 6, 1887) was an American invertebrate zoologist and paleontologist known for his studies on isopods, and for his work as an paleontological assistant to Othniel Charles Marsh. Harger, the son of Alfred Harger, a farmer and land surveyor of Huguenot descent, was born in Oxford, ... | https://en.wikipedia.org/wiki?curid=49148279 |
Oscar Harger In 1879 he was attacked by cardiac trouble, which increased from year to year. He continued engaged in his regular duties, until prostrated by cerebral hemorrhage on Monday, October 31, 1887. He died on the following Sunday, November 6, in his 45th year. He married, May 13, 1875, Jessie Craig, of New Haven... | https://en.wikipedia.org/wiki?curid=49148279 |
All Sky Automated Survey for SuperNovae The (ASAS-SN) is an automated program to search for new supernovae and other astronomical transients, headed by astronomers from the Ohio State University. It has 20 robotic telescopes in both the northern and southern hemispheres. It can survey the entire sky approximately once ... | https://en.wikipedia.org/wiki?curid=49151754 |
All Sky Automated Survey for SuperNovae It can detect new objects with magnitudes between 18 and 8. Objects discovered receive designations starting with "ASASSN" followed by a dash, a two digit year and letters, for example ASASSN-19bt. | https://en.wikipedia.org/wiki?curid=49151754 |
Sulfide intrusion In ecology, sulfide intrusion refers to an excess of sulfide molecules (S) in the soil that interfere with plant growth, often seagrass. Seagrass bed sediment (soil) is typically anoxic, containing a reduced form of sulfur: hydrogen sulfide (HS). HS is a phytotoxin that results from anaerobic digestio... | https://en.wikipedia.org/wiki?curid=49158055 |
APC Family The Amino Acid-Polyamine-Organocation (APC) Family (TC# 2.A.3) of transport proteins includes members that function as solute:cation symporters and solute:solute antiporters. They occur in bacteria, archaea, fungi, unicellular eukaryotic protists, slime molds, plants and animals. They vary in length, being a... | https://en.wikipedia.org/wiki?curid=49159269 |
APC Family " The latter protein is required for the activity of the cystine/glutamate antiporter (2.A.3.8.5), which maintains cellular redox balance and cysteine/glutathione levels. They are members of the rBAT family of mammalian proteins (TC #8.A.9). Two APC family members, LAT1 and LAT2 (TC #2.A.3.8.7), transport a ... | https://en.wikipedia.org/wiki?curid=49159269 |
AGCS family Members of the Alanine or Glycine:Cation Symporter (AGCS) Family (TC# 2.A.25) transport alanine and/or glycine in symport with Na and or H. Known proteins in the are between 445 and 550 amino acyl residues in length and possess 8 to 12 putative transmembrane α-helical spanners. Members may possess 11 transm... | https://en.wikipedia.org/wiki?curid=49162176 |
Tac-Promoter The (abbreviated as Ptac), or tac vector is a synthetically produced DNA promoter, produced from the combination of promoters from the trp and lac operons. It is commonly used for protein production in Escherichia coli. Two hybrid promoters functional in Escherichia coli were constructed. These hybrid prom... | https://en.wikipedia.org/wiki?curid=49172614 |
Tac-Promoter Consequently, these hybrid promoters are useful for the controlled expression of foreign genes at high levels in E. coli. In contrast to the trp and the lac UV5 promoters, the tacI promoter has not only a consensus -35 sequence but also a consensus Pribnow box sequence. This may explain the higher efficien... | https://en.wikipedia.org/wiki?curid=49172614 |
Tac-Promoter The tac promoter/operator (dubbed "PTAC") is one of the most widely used expression systems. Ptac is a strong hybrid promoter composed of the -35 region of the trp promoter and the -10 region of the lacUV5 promoter/operator. Expression of PTAC is repressed by the lacI protein. The lacI allele is a promoter... | https://en.wikipedia.org/wiki?curid=49172614 |
Mithan Lal Roonwal (18 September 1908 – 22 July 1990) was an Indian zoologist and director of the Zoological Survey of India. Roonwal studied a range of taxa from termites to mammals. His landmark works were on the biology of termites and a monograph on the primates of South Asia. He was the first to note geographic pa... | https://en.wikipedia.org/wiki?curid=49174555 |
Mithan Lal Roonwal In 1956 he joined the Zoological Survey of India to succeed Sunder Lal Hora as the director. He retired from the ZSI in 1965 and joined Jodhpur University. He received a Sc.D. for his work on the morphology and systematics of termites in 1962 from Cambdrige University. | https://en.wikipedia.org/wiki?curid=49174555 |
NGC 4490 NGC 4490, also known as the Cocoon Galaxy, is a barred spiral galaxy in the constellation Canes Venatici. It lies at a distance of 25 million light years from Earth. It interacts with its smaller companion NGC 4485 and as a result is a starburst galaxy. and NGC 4485 are collectively known in the Atlas of Pecul... | https://en.wikipedia.org/wiki?curid=49200995 |
Innermost stable circular orbit The innermost stable circular orbit (often called the ISCO) is the smallest circular orbit in which a test particle can stably orbit a massive object in general relativity. The location of the ISCO, the ISCO-radius (formula_1), depends on the angular momentum (spin) of the central object... | https://en.wikipedia.org/wiki?curid=49203606 |
Innermost stable circular orbit As the rotation rate of the black hole increases the retrograde ISCO increases towards formula_12 (4.5 times the a=0 horizon radius) while the prograde ISCO decreases towards the horizon radius and appears to merge with it for an extremal black hole (however, this later merger is illusor... | https://en.wikipedia.org/wiki?curid=49203606 |
NGC 2768 is a lenticular galaxy located in the constellation of Ursa Major. It is at a distance of 65 million light years from Earth. is an example of a Seyfert galaxy, an object with a supermassive black hole at its centre. A dusty structure is encircling the centre of the galaxy, forming a knotted ring around the gal... | https://en.wikipedia.org/wiki?curid=49207552 |
HAAAP family The Hydroxy/Aromatic Amino Acid Permease (HAAAP) Family (TC# 2.A.42) is a member of the large Amino Acid-Polyamine-OrganoCation (APC) Superfamily of secondary carriers. Members of the all function in amino acid uptake. Homologues are present in a large number of Gram-negative and Gram-positive bacteria, wi... | https://en.wikipedia.org/wiki?curid=49219918 |
HAAAP family 1) is also called DcrA, and together with a periplasmic protein DcrB (P37620), has been reported to play a role in phage DNA uptake in conjunction with an outer membrane receptor of the OMR family (TC# 1.B.14). Thus, FhuA (TC #1.B.14.1.4) transports phage T5 DNA while BtuB (TC# 1.B.14.3.1) transports phage... | https://en.wikipedia.org/wiki?curid=49219918 |
Weak gravity conjecture The weak gravity conjecture (WGC) is a conjecture regarding the strength gravity can have in a theory of quantum gravity relative to the gauge forces in that theory. It roughly states that gravity should be the weakest force in any consistent theory of quantum gravity. | https://en.wikipedia.org/wiki?curid=49226157 |
Dienyl radical Dienyl radicals are free radicals that can be formed by the oxidation of polyunsaturated fatty acids. These can combine with oxygen to form cis-trans lipid peroxyl radicals. | https://en.wikipedia.org/wiki?curid=49250685 |
Holmium–magnesium–zinc quasicrystal A holmium–magnesium–zinc (Ho–Mg–Zn) quasicrystal is a quasicrystal made of an alloy of the three metals holmium, magnesium and zinc that has the shape of a regular dodecahedron, a Platonic solid with 12 five-sided faces. Unlike the similar pyritohedron shape of some cubic-system crys... | https://en.wikipedia.org/wiki?curid=49253469 |
EcoRI "Eco"RI (pronounced "eco R one") is a restriction endonuclease enzyme isolated from species "E. coli." The "Eco" part of the enzyme's name originates from the species from which it was isolated, while the R represents the particular strain, in this case RY13. The last part of its name, the I, denotes that it was ... | https://en.wikipedia.org/wiki?curid=49256303 |
EcoRI The solved crystal structure shows that the subunits of the enzyme homodimer interact with the DNA symmetrically. In the complex, two α-helices from each subunit come together to form a four-helix bundle. On the interacting helices are residues Glu144 and Arg145, which interact together, forming a crosstalk ring ... | https://en.wikipedia.org/wiki?curid=49256303 |
Glacial stream A glacial stream is a channelized accumulation of liquid water which flow in a channel formed by a glacier. Depending on where they flow, they can be classified into supraglacial, englacial and subglacial streams. | https://en.wikipedia.org/wiki?curid=49266988 |
Robert Chinnock Robert James "Bob" Chinnock (born 3 July 1943) is a New Zealand-born Australian botanist who worked at the State Herbarium of South Australia as a senior biologist. He retired in 2008 but still works as an honorary research associate. His research interests include "Eremophila" and related genera, the w... | https://en.wikipedia.org/wiki?curid=49273226 |
Helmut Gams (1893–1976) was a central European botanist. Born in Brno, he moved to Zürich as a child. He studied at the University of Zurich, being awarded a PhD in 1918. During his career, he worked at the University of Munich and the University of Innsbruck. His research saw him pursue fieldwork around Europe and Asi... | https://en.wikipedia.org/wiki?curid=49278031 |
NGC 986 is a barred spiral galaxy in the constellation of Fornax, located about 56 million light-years away. The galaxy contains two large, extended and slightly warped arms that begin at each end of the central bar. It was discovered in 1826 by the Scottish astronomer James Dunlop. | https://en.wikipedia.org/wiki?curid=49287387 |
Nicotinamide ribonucleoside uptake transporters The Nicotinamide Ribonucleoside (NR) Uptake Permease (PnuC) Family (TC# 4.B.1) is a family of transmembrane transporters that is part of the TOG superfamily. Close PnuC homologues are found in a wide range of Gram-negative and Gram-positive bacteria, archaea and eukaryote... | https://en.wikipedia.org/wiki?curid=49292515 |
Nicotinamide ribonucleoside uptake transporters They are responsible for coordination of three distinct conformations, an open state in the absence of substrate, a partially closed state after substrate binding, and a fully closed state when both substrates are present. In "H. influenzae", NR enters the NAD resynthesis... | https://en.wikipedia.org/wiki?curid=49292515 |
Nicotinamide ribonucleoside uptake transporters A concerted group translocation mechanism can be considered whereby NadR facilitates the dissociation of NR from PnuC by phosphorylating it to NMN, thus preventing efflux of NR. The proposed transport reaction catalyzed by PnuC and NadR is: NR (out) + ATP (in) → NMN (in) ... | https://en.wikipedia.org/wiki?curid=49292515 |
Andrew Phillip Brown (born 1951) is a conservation biologist and taxonomist at the Western Australian Department of Environment and Conservation. He is also curator of Orchidaceae and Myoporaceae at the Western Australian Herbarium and a foundation member of the Australian Orchid Foundation and the Western Australia Na... | https://en.wikipedia.org/wiki?curid=49292835 |
Natural resistance-associated macrophage protein Natural resistance-associated macrophage proteins (NRAMPs) are members of the metal ion (Mn-iron) transporter family (TC# 2.A.55). The NRAMP family is a member of the large APC Superfamily of secondary carriers. Homologues of this family are found in various yeasts, plan... | https://en.wikipedia.org/wiki?curid=49293529 |
Natural resistance-associated macrophage protein Symptoms of Mn deficiency are also seen. It is found in apical membranes of intestinal epithelial cells but also in late endosomes and lysosomes. In contrast to the widely expressed NRAMP2, NRAMP1 is expressed primarily in macrophages and monocytes and appears to have a ... | https://en.wikipedia.org/wiki?curid=49293529 |
Natural resistance-associated macrophage protein Indirect and some direct experiments suggest that they may be able to transport several heavy metals including Mn, Cu, Cd and Co. A third yeast protein, Smf3p, appears to be exclusively intracellular, possibly in the Golgi. NRAMP2 ("Slc11A2") of Homo sapiens (TC# 2.A.55.... | https://en.wikipedia.org/wiki?curid=49293529 |
Rayleigh fractionation describes the evolution of a system with multiple phases in which one phase is continuously removed from the system through fractional distillation. It is used in particular to describe isotopic enrichment or depletion as material moves between reservoirs in an equilibrium process. holds particul... | https://en.wikipedia.org/wiki?curid=49301338 |
Rayleigh fractionation Because the concentration of X » Xh (heavier isotope concentration), X is approximately equal to the amount of original material in the phase. Hence, if formula_2 = fraction of material remaining, then: formula_3 For large changes in concentration, such as they occur during e.g. distillation of h... | https://en.wikipedia.org/wiki?curid=49301338 |
Chemical conditioning Conditioning is a process in which reaction factors are stabilized or enhanced. It could be as increasing the quality of a material by using another material, improvement solids capture and physically and chemically water treatment or dewatering. There are three main conditioning systems: heat, in... | https://en.wikipedia.org/wiki?curid=49302247 |
Ximenynic acid "Not to be confused with Ximenic acid, a 26 carbon omega-9 fatty acid." is trans-11-octadecen-9-ynoic acid, a long-chain acetylenic fatty acid. It was discovered in the fruit kernels of 3 South American ximenia species (and so named). and found to have the formula CHO. It can be extracted from the fruit ... | https://en.wikipedia.org/wiki?curid=49310912 |
Pressure-driven flow Pressure driven flow is a method to displace liquids in a capillary or microfluidic channel with pressure. The pressure is typically generated pneumatically by compressed air or other gases (Nitrogen, Carbon dioxide, etc) or by electrical and magnetical fields or gravitation. It is known from therm... | https://en.wikipedia.org/wiki?curid=49331144 |
Squire's theorem In fluid dynamics, states that of all the perturbations that may be applied to a shear flow (i.e. a velocity field of the form formula_1), the perturbations which are least stable are two-dimensional, i.e. of the form formula_2 than the three-dimensional disturbances. This applies to incompressible flo... | https://en.wikipedia.org/wiki?curid=49362816 |
Riemannian metric and Lie bracket in computational anatomy Computational anatomy (CA) is the study of shape and form in medical imaging. The study of deformable shapes in computational anatomy rely on high-dimensional diffeomorphism groups formula_1 which generate orbits of the form formula_2. In CA, this orbit is in g... | https://en.wikipedia.org/wiki?curid=49400436 |
Riemannian metric and Lie bracket in computational anatomy The diffeomorphisms in computational anatomy are generated to satisfy the Lagrangian and Eulerian specification of the flow fields, formula_10, generated via the ordinary differential equation with the Eulerian vector fields formula_11 in formula_12 for formula... | https://en.wikipedia.org/wiki?curid=49400436 |
Riemannian metric and Lie bracket in computational anatomy This is made into a Riemannian orbit by introducing a metric associated to each point and associated tangent space. For this a metric is defined on the group which induces the metric on the orbit. Take as the metric for Computational anatomy at each element of ... | https://en.wikipedia.org/wiki?curid=49400436 |
Riemannian metric and Lie bracket in computational anatomy Using Hamilton's principle of least-action derives the optimizing flows as a critical point for the action integral of the integral of the kinetic energy. The Lie bracket for vector fields in Computational Anatomy was first introduced in Miller, Trouve and Youn... | https://en.wikipedia.org/wiki?curid=49400436 |
Riemannian metric and Lie bracket in computational anatomy The original derivation of the Euler equation associated to the geodesic flow of diffeomorphisms exploits the was a generalized function equation whenformula_43 is a distribution, or generalized function, take the first order variation of the action integral us... | https://en.wikipedia.org/wiki?curid=49400436 |
Riemannian metric and Lie bracket in computational anatomy Matching information across coordinate systems is central to computational anatomy. Adding a matching term formula_63 to the action integral of Equation () which represents the target endpoint The endpoint term adds a boundary condition for the Euler–Lagrange e... | https://en.wikipedia.org/wiki?curid=49400436 |
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