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Chemical mimicry of an organism's pheromones allows predators with this ability to draw select prey to them, rather than spend their energy finding and attempting to capture these organisms with varied success. The pheromones are typically used by the prey species to attract members of their own species as potential ma... | 1 | Applied and Interdisciplinary Chemistry |
A common way to produce the 3-azidocoumarin is by condensation of salicylaldehyde and N-acetylglycine or nitroacetate. The intermediate is trapped with sodium azide to produce the 3-azidocoumarin. The isomeric 4-azidocoumarin (CAS# 42373-56-8) product can also be prepared from 4-hydroxycoumarin via the 4-chloro derivat... | 1 | Applied and Interdisciplinary Chemistry |
Performance requirements can include:
#Optical performance (image quality): This is quantified by various metrics, including encircled energy, modulation transfer function, Strehl ratio, ghost reflection control, and pupil performance (size, location and aberration control); the choice of the image quality metric is ap... | 0 | Theoretical and Fundamental Chemistry |
In a stripping reaction, the metal strips a neutron from accelerated deuteron and fuses it with the metal, yielding a different isotope of the metal. If the produced metal isotope is radioactive, it may decay into another element, releasing energy in the form of ionizing radiation in the process. | 0 | Theoretical and Fundamental Chemistry |
2,2-Dimethylpropanoyl chloride is a branched-chain acyl chloride. It was first made by Aleksandr Butlerov in 1874 by reacting pivalic acid with phosphorus pentachloride.
Pivaloyl chloride is used as an input in the manufacture of some drugs, insecticides and herbicides. | 0 | Theoretical and Fundamental Chemistry |
Following the 120 kg/h test work, MIM decided to proceed to install a 5 t/h lead ISASMELT pilot plant in its Mount Isa lead smelter. It bought Aberfoyle's matte fuming furnace and transported it from Kalgoorlie to Mount Isa, where it was rebuilt and commissioned in 1983 to demonstrate the first stage of the process in ... | 1 | Applied and Interdisciplinary Chemistry |
The PKS of phoslactomycin has one loading domain, 7 modules and 6 proteins that encode PnA, PnB, PnC, PnD, PnE, and PnF. The biosynthesis starts the loading with the cyclohexyl- CoA. Stepping in each module, there always need the keto synthase (KS) to create the new linkage of carbon-carbon to elongate the chain, the a... | 1 | Applied and Interdisciplinary Chemistry |
A molecule is composed of one or more chemical bonds between molecular orbitals of different atoms. A molecule may be polar either as a result of polar bonds due to differences in electronegativity as described above, or as a result of an asymmetric arrangement of nonpolar covalent bonds and non-bonding pairs of elect... | 0 | Theoretical and Fundamental Chemistry |
An effusive limit in ultra-low pressure fluid flow is the limit at which a gas of certain molecular weight is able to expand into a vacuum such as a molecular beam line. | 1 | Applied and Interdisciplinary Chemistry |
An active moiety is a molecule or ion, excluding those appended portions of the molecule that cause the drug to be an ester, salt (including a salt with hydrogen or coordination bonds), or other noncovalent derivative (such as a complex, chelate, or clathrate) of the molecule, responsible for the physiological or pharm... | 1 | Applied and Interdisciplinary Chemistry |
The principal reaction of interest involves the addition of the acetylene () to a ketone () or aldehyde ():
The reaction proceeds with retention of the triple bond. For aldehydes and unsymmetrical ketones, the product is chiral, hence there is interest in asymmetric variants. These reactions invariably involve metal... | 0 | Theoretical and Fundamental Chemistry |
Methylthioninium chloride, commonly called methylene blue, is a salt used as a dye and as a medication. As a medication, it is mainly used to treat methemoglobinemia by chemically reducing the ferric iron in hemoglobin to ferrous iron. Specifically, it is used to treat methemoglobin levels that are greater than 30% or ... | 0 | Theoretical and Fundamental Chemistry |
N-heterocyclic carbenes (NHCs) have become one of the most important ligands in transition-metal catalysis. The success of normal NHCs is greatly attributed to their superior σ-donating capabilities as compared to phosphines, which is even greater in abnormal NHC counterparts. Employed as ligands in palladium complexes... | 0 | Theoretical and Fundamental Chemistry |
LC–MS is frequently used in drug development because it allows quick molecular weight confirmation and structure identification. These features speed up the process of generating, testing, and validating a discovery starting from a vast array of products with potential application. LC–MS applications for drug developme... | 0 | Theoretical and Fundamental Chemistry |
The immune system plays an important role in monitoring and destroying abnormal or cancerous cells. Telomere extension may affect the immune system's ability to recognize and eliminate cells with long telomeres, potentially compromising immune surveillance. It is very important to ensure the ability of the immune syste... | 1 | Applied and Interdisciplinary Chemistry |
To a large extent, portions of nucleotide repeats are quite often observed as part of rare DNA combinations. The three main repeats which are largely found in particular DNA constructs include the closely precise homopurine-homopyrimidine inverted repeats, which is otherwise referred to as H palindromes, a common occur... | 1 | Applied and Interdisciplinary Chemistry |
In organic chemistry, a staggered conformation is a chemical conformation of an ethane-like moiety abcX–Ydef in which the substituents a, b, and c are at the maximum distance from d, e, and f; this requires the torsion angles to be 60°. It is the opposite of an eclipsed conformation, in which those substituents are as ... | 0 | Theoretical and Fundamental Chemistry |
In two tandem Letters to the Editor (1936), Wrinch and Frank addressed the question of whether the cyclol form of the peptide group was indeed more stable than the amide form. A relatively simple calculation showed that the cyclol form is significantly less stable than the amide form. Therefore, the cyclol model would ... | 1 | Applied and Interdisciplinary Chemistry |
Usual Rankine cycles are thermodynamic cycles that employ water as a working fluid to produce electric power from thermal sources. In Organic Rankine cycles, by contrast, water is substituted by molecularly complex organic compounds. Since the vaporization temperature of these kinds of fluids is lower than that of wate... | 0 | Theoretical and Fundamental Chemistry |
Nitrogen fixation is a chemical process by which molecular nitrogen (), which has a strong triple covalent bond, is converted into ammonia () or related nitrogenous compounds, typically in soil or aquatic systems but also in industry. The nitrogen in air is molecular dinitrogen, a relatively nonreactive molecule that i... | 1 | Applied and Interdisciplinary Chemistry |
Modular screen media is typically 1 foot large by 1 or 2 feet long (4 feet long for ISEPREN WS 85 ) steel reinforced polyurethane or rubber panels. They are installed on a flat deck (no crown) that normally has a larger surface than a tensioned deck. This larger surface design compensates for the fact that rubber and ... | 1 | Applied and Interdisciplinary Chemistry |
An example of a transversely isotropic material is the so-called on-axis unidirectional fiber composite lamina where the fibers are circular in cross section. In a unidirectional composite, the plane normal to the fiber direction can be considered as the isotropic plane, at long wavelengths (low frequencies) of excitat... | 0 | Theoretical and Fundamental Chemistry |
Most low-beam headlamps produce an asymmetrical light suitable for use on only one side of the road. Low beam headlamps in LHT jurisdictions throw most of their light forward-leftward; those for RHT throw most of their light forward-rightward, thus illuminating obstacles and road signs while minimising glare for oncomi... | 0 | Theoretical and Fundamental Chemistry |
Pyruvate kinase catalyzes the last step within the glycolytic sequence, the dephosphorylation of phosphoenolpyruvate to pyruvate and is responsible for net energy production within the glycolytic pathway. Depending upon the different metabolic functions of the tissues, different isoenzymes of pyruvate kinase are expres... | 1 | Applied and Interdisciplinary Chemistry |
Levomilnacipran was developed by Forest Laboratories and Pierre Fabre Group, and was approved by the Food and Drug Administration in July 2013. | 0 | Theoretical and Fundamental Chemistry |
Currently, there are several NRTIs in various stages of clinical and preclinical development. The main reasons for continuing the search for new NRTIs against HIV-1 are to decrease toxicity, increase efficiency against resistant viruses, and simplify anti-HIV-1 treatment. | 1 | Applied and Interdisciplinary Chemistry |
The imine condensation reaction which eliminates water (exemplified by reacting aniline with benzaldehyde using an acid catalyst) can be used as a synthetic route to reach a new class of COFs. The 3D COF called COF-300 and the 2D COF named TpOMe-DAQ are good examples of this chemistry. When 1,3,5-triformylphloroglucino... | 0 | Theoretical and Fundamental Chemistry |
By definition, these compounds occur in nature, but the subfield includes anthropogenic species, such as pollutants (e.g., methylmercury) and drugs (e.g., Cisplatin). The field, which incorporates many aspects of biochemistry, includes many kinds of compounds, e.g., the phosphates in DNA, and also metal complexes cont... | 0 | Theoretical and Fundamental Chemistry |
(+)-Discodermolide is able to induce the senescence phenotype. (+)-Discodermolide treated Hela, MDA-MB-231, HCT-116, and A549 cells exhibited moderated to high levels of β-galactosidase activity in all four cell lines. The β-galactosidase activity is one of the hallmarks of senescence. Other common features include a c... | 0 | Theoretical and Fundamental Chemistry |
In chemical kinetics, the elementary reactions are represented by the stoichiometric equations
where are the components and are the stoichiometric coefficients. Here, the reverse reactions with positive constants are included in the list separately. We need this separation of direct and reverse reactions to apply lat... | 0 | Theoretical and Fundamental Chemistry |
At high pressure, zirconium tungstate undergoes a series of phase transitions, first to an amorphous phase, and then to a UO-type phase, in which the zirconium and tungsten atoms are disordered. | 0 | Theoretical and Fundamental Chemistry |
In the early 2000s, handling genetic information as exceptional, including legal or regulatory protections, garnered strong support. It was argued that genomic information may need special policy and practice protections within the context of electronic health records (EHRs). In 2008, the Genetic Information Nondiscrim... | 1 | Applied and Interdisciplinary Chemistry |
Fragmented genomic DNA or complementary DNA (cDNA) of interest is cloned into plasmid vectors. The cloning sites are flanked with adaptor sequences that contain restriction sites for endonucleases (discussed below). Inserts are ligated to the plasmid vectors and individual vectors are then transformed into E. coli maki... | 1 | Applied and Interdisciplinary Chemistry |
Dark fermentation reactions do not require light energy. These are capable of constantly producing hydrogen from organic compounds throughout the day and night. Typically these reactions are coupled to the formation of carbon dioxide or formate. Important reactions that result in hydrogen production start with glucos... | 1 | Applied and Interdisciplinary Chemistry |
Site-directed spin labeling (SDSL) was pioneered in the laboratory of Dr. W.L. Hubbell. In SDSL, sites for attachment of spin labels are introduced into recombinantly expressed proteins by site-directed mutagenesis. Functional groups contained within the spin label determine their specificity. At neutral pH, protein... | 0 | Theoretical and Fundamental Chemistry |
For many systems of physical and chemical kinetics, detailed balance provides sufficient conditions for the strict increase of entropy in isolated systems. For example, the famous Boltzmann H-theorem states that, according to the Boltzmann equation, the principle of detailed balance implies positivity of entropy produc... | 0 | Theoretical and Fundamental Chemistry |
Trifluoroperacetic acid is primarily used as an oxidising agent. In September 1953, the Journal of the American Chemical Society published work by William D. Emmons and Arthur F. Ferris reporting that this reagent, generated in situ, was capable of oxidising aniline to nitrobenzene. Over the following two years, Emmo... | 0 | Theoretical and Fundamental Chemistry |
Kendal Black Drop was a drug based on opium. Named after Kendal on the edge of the Lake District, England, it is associated with the romantic poet, Samuel Taylor Coleridge. | 1 | Applied and Interdisciplinary Chemistry |
Joseph Howard Mathews (October 15, 1881 – April 15, 1970) was an American physical chemist, university professor, and expert on firearm identification. Mathews was Chair of the Department of Chemistry at the University of Wisconsin–Madison for 33 years (1919–1952). | 0 | Theoretical and Fundamental Chemistry |
Arsaalkynes are produced by dehydrohalogenation or related base-induced elimination reactions. The case of HCAs is illustrative:
Owing to the principles of the double bond rule, arsaalkynes tend to oligomerize more readily than the phosphorus analogues. Thus attempts to prepare AsCCMe produce the tetramer, which has a... | 0 | Theoretical and Fundamental Chemistry |
Senapathy proposed that the gene-expression regulatory sequences (promoter and poly-A addition site sequences) also could have originated from stop codons. A conserved sequence, AATAAA, exists in almost every gene a short distance downstream from the end of the protein-coding message and serves as a signal for the addi... | 1 | Applied and Interdisciplinary Chemistry |
Isotopes naturally found on earth are usually those that are stable or have a decay time larger than, or at least a significant fraction of the age of the Earth (about 5 x 10 years). Isotopes with shorter halflifes mainly exist as decay products from longer lived isotopes, and, as in C14, from irradiation of the upper ... | 0 | Theoretical and Fundamental Chemistry |
Photoinhibition can be measured from isolated thylakoid membranes or their subfractions, or from intact cyanobacterial cells by measuring the light-saturated rate of oxygen evolution in the presence of an artificial electron acceptor (quinones and dichlorophenol-indophenol have been used).
The degree of photoinhibition... | 0 | Theoretical and Fundamental Chemistry |
In Africa, the Adal Empire and the Abyssinian Empire both deployed gunpowder weapons during the Adal-Abyssinian War. Imported from Arabia, and the wider Islamic world, the Adalites, led by Ahmed ibn Ibrahim al-Ghazi, were the first African power to introduce cannon warfare to the African continent. Later on as the Port... | 1 | Applied and Interdisciplinary Chemistry |
FeTAML(=O), TAML = tetra-amido macrocyclic ligand, is formed by the reaction of [Fe(TAML)(HO)](PPh) with 2-5 equivalents of meta-chloroperbenzoic acid at -60 ˚C in n-butyronitrile. This deep green compound (two λ at 445 and 630 nm respectively) is stable at 77 K. The stabilization of Fe(V) is attributed to the strong ... | 0 | Theoretical and Fundamental Chemistry |
Benzenediazonium chloride heated with cuprous chloride or cuprous bromide respectively dissolved in HCl or HBr yield chlorobenzene or bromobenzene, respectively. | 0 | Theoretical and Fundamental Chemistry |
The CRC Handbook of Chemistry and Physics defines specific rotation as:
= α/γl, where α is the angle through which plane polarized light is rotated by a solution of mass concentration γ and path length l. Here θ is the Celsius temperature and λ the wavelength of the light at which the measurement is carried out.</bloc... | 0 | Theoretical and Fundamental Chemistry |
*Production and distribution of radioisotopes for civilian research and medical use at the Oak Ridge National Laboratory in 1946
*Development of deep-tank fermentation for the mass production of penicillin by Pfizer in the 1940s
*Development of acrylic emulsion technology for the production of acrylic paint by Rohm and... | 1 | Applied and Interdisciplinary Chemistry |
Zinc is normally associated with metal mining, especially Lead and Silver mining but is also a component pollutant associated with a variety of other metal mining activities and with Coal mining. Zinc is toxic at relatively low concentrations to many aquatic organisms. Microregma starts to show a toxic reaction at conc... | 1 | Applied and Interdisciplinary Chemistry |
In May 2022, scientists at University of Cambridge announced they created an algae energy harvester, that uses natural sunlight to power a small microprocessor, initially powering the processor for six months, and then kept going for a full year. The device, which is about the size of AA battery, is a small container w... | 1 | Applied and Interdisciplinary Chemistry |
Bioretrosynthesis is a technique for synthesizing organic chemicals from inexpensive precursors and evolved enzymes. The technique builds on the retro-evolution hypothesis proposed in 1945 by geneticist Norman Horowitz. | 0 | Theoretical and Fundamental Chemistry |
A number of proteins are known to be associated with TAD formation including the protein CTCF and the protein complex cohesin. It is also unknown what components are required at TAD boundaries; however, in mammalian cells, it has been shown that these boundary regions have comparatively high levels of CTCF binding. In ... | 1 | Applied and Interdisciplinary Chemistry |
Passive daytime radiative cooling is referred to as more stable, adaptable, and reversible when compared to stratospheric aerosol injection, which proposes injecting particles into the atmosphere to increase radiative forcing to reduce temperatures. Studies have warned against stratospheric aerosol injections potential... | 0 | Theoretical and Fundamental Chemistry |
The mechanisms of chemical reactions can be investigated by observing how the kinetics of a reaction is changed by making an isotopic modification of a substrate, known as the kinetic isotope effect. This is now a standard method in organic chemistry. Briefly, replacing normal hydrogen (protons) by deuterium within a m... | 0 | Theoretical and Fundamental Chemistry |
Apamin is the smallest neurotoxin polypeptide known, and the only one that passes the blood-brain barrier. Apamin thus reaches its target organ, the central nervous system. Here it inhibits small-conductance Ca-activated K channels (SK channels) in neurons. These channels are responsible for the afterhyperpolarizations... | 1 | Applied and Interdisciplinary Chemistry |
Agmatine has been discussed as a putative neurotransmitter. It is synthesized in the brain, stored in synaptic vesicles, accumulated by uptake, released by membrane depolarization, and inactivated by agmatinase. Agmatine binds to α-adrenergic receptor and imidazoline receptor binding sites, and blocks NMDA receptors an... | 1 | Applied and Interdisciplinary Chemistry |
The RNA polymerase II transcribes U1, U2, U4, U5 and the less abundant U11, U12 and U4atac (snRNAs) acquire a m7G-cap which serves as an export signal. Nuclear export is mediated by CRM1. | 1 | Applied and Interdisciplinary Chemistry |
The added complexity of generating a eukaryotic cell carries with it an increase in the complexity of transcriptional regulation. Eukaryotes have three RNA polymerases, known as Pol I, Pol II, and Pol III. Each polymerase has specific targets and activities, and is regulated by independent mechanisms. There are a numbe... | 1 | Applied and Interdisciplinary Chemistry |
Since semi-displacement and planing hulls generate a significant amount of lift in operation, they are capable of breaking the barrier of the wave propagation speed and operating in realms of much lower drag, but to do this they must be capable of first pushing past that speed, which requires significant power. This s... | 1 | Applied and Interdisciplinary Chemistry |
The Cieplak effect relies on the stabilizing interaction of mixing full and empty orbitals to delocalize electrons, known as hyperconjugation. When the highest occupied molecular orbital (HOMO) of one system and the lowest unoccupied molecular orbital (LUMO) of another system have comparable energies and spatial overla... | 0 | Theoretical and Fundamental Chemistry |
In cell biology, chromosome territories are regions of the nucleus preferentially occupied by particular chromosomes.
Interphase chromosomes are long DNA strands that are extensively folded, and are often described as appearing like a bowl of spaghetti. The chromosome territory concept holds that despite this apparent ... | 1 | Applied and Interdisciplinary Chemistry |
Molecular self-assembly underlies the construction of biologic macromolecular assemblies and biomolecular condensates in living organisms, and so is crucial to the function of cells. It is exhibited in the self-assembly of lipids to form the membrane, the formation of double helical DNA through hydrogen bonding of the ... | 0 | Theoretical and Fundamental Chemistry |
Association theory (also aggregate theory) is a theory first advanced by chemist Thomas Graham in 1861 to describe the molecular structure of colloidal substances such as cellulose and starch, now understood to be polymers. Association theory postulates that such materials are solely composed of a collection of smalle... | 0 | Theoretical and Fundamental Chemistry |
The rare earth element lutetium was independently discovered by three scientists at around the same time in 1907: French scientist Georges Urbain, Austrian Auer von Welsbach, and American Charles James.
All three were successful in separating the substance then known as ytterbium into two new fractions. To name the ne... | 1 | Applied and Interdisciplinary Chemistry |
When examining a system computationally one may be interested in knowing how the free energy changes as a function of some inter- or intramolecular coordinate (such as the distance between two atoms or a torsional angle). The free energy surface along the chosen coordinate is referred to as the potential of mean force ... | 0 | Theoretical and Fundamental Chemistry |
Assuming that the liquid is a Newtonian fluid, the incompressible Navier–Stokes equation in spherical coordinates for motion in the radial direction gives
Substituting kinematic viscosity and rearranging gives
whereby substituting from mass conservation yields
Note that the viscous terms cancel during substitution. ... | 1 | Applied and Interdisciplinary Chemistry |
Tetrathionate's structure can be visualized by following three edges of a rectangular cuboid, as in the diagram below. The structure shown is the configuration of in BaSO·2HO and NaSO·2HO. Dihedral S–S–S–S angles approaching 90° are common in polysulfides. | 1 | Applied and Interdisciplinary Chemistry |
The particular series of amino acids that form a protein is known as that protein's primary structure. This sequence is determined by the genetic makeup of the individual. It specifies the order of side-chain groups along the linear polypeptide "backbone".
Proteins have two types of well-classified, frequently occurrin... | 0 | Theoretical and Fundamental Chemistry |
ATSDR represents the Department of Health and Human Services on the National Response Team and works with other agencies to provide technical assistance during emergencies involving hazardous substances, such as chemical spills. In July 2007, for example, ATSDR responded to the Verdigris River flood in Coffeyville, Kan... | 1 | Applied and Interdisciplinary Chemistry |
Macronutrients are defined in several ways.
* The chemical elements humans consume in the largest quantities are carbon, hydrogen, nitrogen, oxygen, phosphorus, and sulphur, summarized as CHNOPS.
* The chemical compounds that humans consume in the largest quantities and provide bulk energy are classified as carbohydrat... | 0 | Theoretical and Fundamental Chemistry |
The sources of silica can be divided into two categories: silica in organic and inorganic materials. The former category is also known as biogenic silica, which is a ubiquitous material in animals and plants. The latter category is the second most abundant element in Earth's crust. Silicate minerals are the major compo... | 0 | Theoretical and Fundamental Chemistry |
From the titration of protonatable group, one can read the so-called pK which is equal to the pH value where the group is half-protonated (i.e. when 50% such groups would be protonated). The pK is equal to the Henderson–Hasselbalch pK (pK) if the titration curve follows the Henderson–Hasselbalch equation. Most pK calcu... | 0 | Theoretical and Fundamental Chemistry |
Tripotassium phosphate has few industrial applications.
It is used as an inert, easily removed proton acceptor in organic synthesis. Some of the reactions are listed below:
# The hydrate () has been used to catalyze the deprotection of BOC amines. Microwave radiation is used to aid the reaction.
# As a catalyst for the... | 0 | Theoretical and Fundamental Chemistry |
The semiconductor material gallium arsenide (GaAs) is also used for single-crystalline thin film solar cells. Although GaAs cells are very expensive, they hold the world's record in efficiency for a single-junction solar cell at 28.8%. Typically fabricated on crystalline silicon wafer with a 41% fill factor, by moving ... | 0 | Theoretical and Fundamental Chemistry |
The bis-nido- is formed by the edge-sharing condensation of a nido- unit and a nido- unit. The m + n + o + p − q count of 16 SEPs are satisfied by ten BH units which provide 10 pairs, two shared boron atoms which provide 3 pairs, and six bridging H atoms which provide 3 pairs. | 0 | Theoretical and Fundamental Chemistry |
This technique is commonly used in conjunction with green fluorescent protein (GFP) fusion proteins, where the studied protein is fused to a GFP. When excited by a specific wavelength of light, the protein will fluoresce. When the protein that is being studied is produced with the GFP, then the fluorescence can be tr... | 1 | Applied and Interdisciplinary Chemistry |
The École Nationale Supérieure dÉlectrochimie et dÉlectrométallurgie de Grenoble, or ENSEEG, was one of the French Grandes écoles of engineering (engineering schools). It has been created in 1921 under the name Institut d’électrochimie et d’électrométallurgie (IEE) (Institute of Electrochemistry and Electrometallurgy)... | 1 | Applied and Interdisciplinary Chemistry |
The rotating-wave approximation is an approximation used in atom optics and magnetic resonance. In this approximation, terms in a Hamiltonian that oscillate rapidly are neglected. This is a valid approximation when the applied electromagnetic radiation is near resonance with an atomic transition, and the intensity is l... | 0 | Theoretical and Fundamental Chemistry |
Photochromic lenses were developed by William H. Armistead and Stanley Donald Stookey at the Corning Glass Works Inc. in the 1960s. | 0 | Theoretical and Fundamental Chemistry |
The concept of the DNA of Things (DoT) was introduced in 2019 by a team of researchers from Israel and Switzerland, including Yaniv Erlich and Robert Grass. DoT encodes digital data into DNA molecules, which are then embedded into objects. This gives the ability to create objects that carry their own blueprint, similar... | 1 | Applied and Interdisciplinary Chemistry |
In chemistry, dioxirane (systematically named dioxacyclopropane, also known as methylene peroxide or peroxymethane) is an organic compound with formula . The molecule consists of a ring with one methylene and two oxygen atoms. It is of interest as the smallest cyclic organic peroxide, but otherwise it is of little pr... | 0 | Theoretical and Fundamental Chemistry |
In March 1996, a group of scientists at Lawrence Livermore National Laboratory reported that they had serendipitously produced the first identifiably metallic hydrogen for about a microsecond at temperatures of thousands of kelvins, pressures of over , and densities of approximately . The team did not expect to produce... | 0 | Theoretical and Fundamental Chemistry |
Runoff across some land uses may become contaminated, where pollutant concentrations exceed those typically found in stormwater. These "hot spots" include commercial plant nurseries, recycling facilities, fueling stations, industrial storage, marinas, some outdoor loading facilities, public works yards, hazardous mater... | 1 | Applied and Interdisciplinary Chemistry |
The name lactone derives from the ring compound called lactide, which is formed from the dehydration of 2-hydroxypropanoic acid (lactic acid) CH-CH(OH)-COOH. Lactic acid, in turn, derives its name from its original isolation from soured milk (Latin: lac, lactis). The name was coined in 1844 by the French chemist Théoph... | 0 | Theoretical and Fundamental Chemistry |
This type of categorisation of drugs is from a chemical perspective and categorises them by their chemical structure. Examples of drug classes that are based on chemical structures include:
* Benzodiazepine
* Cardiac glycoside
* Fibrate
* Steroid
* Thiazide diuretic
* Triptan
* β-lactam antibiotic | 1 | Applied and Interdisciplinary Chemistry |
The AMNet consists of approximately 15 sites across the U.S. and Canada. The function of these sites is to measure ambient air concentrations of gaseous oxidized mercury (GOM), particulate bound mercury (PBM), and gaseous elemental mercury (GEM). This network works to monitor and report atmospheric mercury that causes ... | 1 | Applied and Interdisciplinary Chemistry |
Rhodizonic acid is a chemical compound with formula or . It can be seen as a twofold enol and fourfold ketone of cyclohexene, more precisely 5,6-dihydroxycyclohex-5-ene-1,2,3,4-tetrone.
Rhodizonic acid is usually obtained in the form of a dihydrate . The latter is actually 2,3,5,5,6,6-hexahydroxycyclohex-2-ene-1,4-di... | 0 | Theoretical and Fundamental Chemistry |
Phosgene is an organic chemical compound with the formula . It is a toxic, colorless gas; in low concentrations, its musty odor resembles that of freshly cut hay or grass. It can be thought of chemically as the double acyl chloride analog of carbonic acid, or structurally as formaldehyde with the hydrogen atoms replace... | 0 | Theoretical and Fundamental Chemistry |
In civil engineering (specifically hydraulic engineering), a hydrodynamic separator (HDS) is a stormwater management device that uses cyclonic separation to control water pollution. They are designed as flow-through structures with a settling or separation unit to remove sediment and other pollutants. HDS are consider... | 1 | Applied and Interdisciplinary Chemistry |
Perera is a Chartered Chemist (CChem.)by profession and a Registered Analytical Chemist of the Royal Society of Chemistry (RSC) in the United Kingdom. He is a Fellow (FRSC) of the RSC of which he is an honorary life member and the former hony. secretary / treasurer (1984–1992) of its section in Sri Lanka.
He is also a ... | 0 | Theoretical and Fundamental Chemistry |
Nickel is both naturally abundant – it is the fifth most common element on earth – and widely used in industry and commercial goods. Workplace nickel exposure is common in many industries, and the performance of normal work tasks can result in nickel skin levels sufficient to elicit dermatitis. Within the workplace, in... | 1 | Applied and Interdisciplinary Chemistry |
In ecological terms, because of its important role in biological systems, phosphate is a highly sought after resource. Once used, it is often a limiting nutrient in environments, and its availability may govern the rate of growth of organisms. This is generally true of freshwater environments, whereas nitrogen is more ... | 0 | Theoretical and Fundamental Chemistry |
TCF7L2 is the symbol officially approved by the HUGO Gene Nomenclature Committee for the Transcription Factor 7-Like 2 gene. | 1 | Applied and Interdisciplinary Chemistry |
In 1956, after a final convalescent period in the French Alps, Joliot-Curie was admitted to the Curie Hospital in Paris, where she died on 17 March at the age of 58 from leukemia, possibly due to radiation from polonium-210. Frédéric's health was also declining, and he died in 1958 from liver disease, which too was sai... | 0 | Theoretical and Fundamental Chemistry |
Between 1995 and 2004 in the United States, an average of 1560 cold-related emergency department visits occurred per year and in the years 1999 to 2004, an average of 647 people died per year due to hypothermia. Of deaths reported between 1999 and 2002 in the US, 49% of those affected were 65 years or older and two-thi... | 1 | Applied and Interdisciplinary Chemistry |
There are different chemical families of corrosion inhibitors used in the oil industry, among them are the following:
Fatty Imidazolines: These are imidazole-based compounds, usually with a long unsaturated chain length, derived mainly from oleic acid. They are very effective in preventing acid corrosion of carbon stee... | 0 | Theoretical and Fundamental Chemistry |
As described in the work of E. Tenailleau and S. Akoka, an optimization of the technique parameters have enabled to reach a better accuracy for the C NMR measurements).
The C-SNIF-NMR method is called method “new frontier” because it is the first analytical method that can differentiate sugars coming from C4-metabolism... | 0 | Theoretical and Fundamental Chemistry |
After Rangs resignation, the Chair of Pharmacology became vacant. The Head of department from 1983 to 1987 was Donald.H Jenkinson He had done his PhD under Bernard Katz. in UCLs famous Department of Biophysics, and was yet another member of staff who had been invited to join the Department by Heinz Schild. During h... | 1 | Applied and Interdisciplinary Chemistry |
The GYG1 gene is located on the long arm of the chromosome 3, between positions 24 and 25, from base pair 148,709,194 to base pair 148,745,455.
Transcription of human glycogenin-1 is mainly initiated at 80bp and 86bp upstream the translator’s codon beginning. Transcriptions factors have different binding sites for its ... | 1 | Applied and Interdisciplinary Chemistry |
In organosulfur chemistry, sulfinamide is a functional group with the structure (where R = alkyl or aryl). This functionality is composed of a sulfur-carbon () and sulfur-nitrogen () single bonds, as well as a sulfur-oxygen double bond (), resulting in a tetravalent sulfur centre (in resonance with its zwitterionic fo... | 0 | Theoretical and Fundamental Chemistry |
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