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Chemotactic drug delivery systems are an emerging field of drug delivery that aims to apply the natural phenomenon of chemotaxis in guiding and delivering a drug to a specific tissue or cell within the body. Thus, similar to how organisms use chemotaxis, researchers have designed drug delivery systems to detect, maneuv... | 1 | Biochemistry |
An example of a plumbide is CeRhPb. The lead atom has a coordination number of 12 in the crystal structure of this compound. It is bound to four rhodiums, six ceriums, and two other lead atoms in the crystal structure of the chemical.
Several other plumbides are the MPdPb plumbides, where M is a rare-earth element, and... | 7 | Physical Chemistry |
The rate of cell growth is directly dependent on the rate of protein synthesis, which is itself intricately linked to ribosome synthesis and rRNA transcription. Thus, intracellular signals must coordinate the synthesis of rRNA with that of other components of protein translation. Myc is known to bind to human ribosomal... | 1 | Biochemistry |
Compared to the other major proton-pumping subunits of the electron transport chain, the number of subunits found can be small, as small as three polypeptide chains. This number does increase, and eleven subunits are found in higher animals. Three subunits have prosthetic groups. The cytochrome b subunit has two b-type... | 1 | Biochemistry |
The method is currently being developed and was applied to investigate translation dynamics in live yeast cells and is extending, rather than simply combining, the capabilities of the previous techniques. The only other transcriptome-wide method for mapping ribosome positions over mRNA with nucleotide precision is ribo... | 1 | Biochemistry |
Nitrogen is present in the environment in a wide variety of chemical forms including organic nitrogen, ammonium (), nitrite (), nitrate (), nitrous oxide (), nitric oxide (NO) or inorganic nitrogen gas (). Organic nitrogen may be in the form of a living organism, humus or in the intermediate products of organic matter ... | 1 | Biochemistry |
Differential refractometers are often used for the analysis of polymer samples in size exclusion chromatography. | 3 | Analytical Chemistry |
Arash Ghorbani-Choghamarani (born 23 September 1979) is an Iranian chemist and Professor of Chemistry at Bu-Ali Sina University. He is also Deputy of Research and Technology at this university since November 2021.
Ghorbani-Choghamarani is among the most-cited Iranian researchers and is known for his works on organic ch... | 0 | Organic Chemistry |
ATP can be generated by substrate-level phosphorylation in mitochondria in a pathway that is independent from the proton motive force. In the matrix there are three reactions capable of substrate-level phosphorylation, utilizing either phosphoenolpyruvate carboxykinase or succinate-CoA ligase, or monofunctional C1-tetr... | 1 | Biochemistry |
Light production may first be triggered by nerve impulses which stimulate the photocyte to release the enzyme luciferase into a "reaction chamber" of luciferin substrate. In some species the release occurs continually without the precursor impulse via osmotic diffusion. Molecular oxygen is then actively gated through s... | 1 | Biochemistry |
There is an important shortcoming for DLTS: it cannot be used for insulating materials. (Note: an insulator can be considered as a very large bandgap semiconductor.) For insulating materials it is difficult or impossible to produce a device having a space region for which width could be changed by the external voltage ... | 7 | Physical Chemistry |
Levoamphetamine{{#tag:ref|Synonyms and alternate spellings include: (IUPAC name), levamfetamine (International Nonproprietary Name [INN]), , , , and is a central nervous system (CNS) stimulant known to increase wakefulness and concentration in association with decreased appetite and fatigue. Pharmaceuticals that cont... | 4 | Stereochemistry |
The oxide crystal structure is based on a close-pack array of oxygen anions, with metal cations occupying interstitial sites. The close-packed arrays, such as face-centered-cubic (fcc) and hexagonal-close packed (hcp), have both octahedral and tetrahedral interstices. | 7 | Physical Chemistry |
Eukaryotic transcription repressors share some of the mechanisms used by their prokaryotic counterparts. For example, by binding to a site on DNA that overlaps with the binding site of an activator, a repressor can inhibit binding of the activator. But more frequently, eukaryotic repressors inhibit the function of an a... | 1 | Biochemistry |
The word catabolism is from Neo-Latin, which got the roots from Greek: κάτω kato, "downward" and βάλλειν ballein, "to throw". | 1 | Biochemistry |
Immunomodulation and immunoregulation were a particular focus of early myokine research, as, according to Dr. Bente Klarlund Pedersen and her colleagues, "the interactions between exercise and the immune system provided a unique opportunity to evaluate the role of underlying endocrine and cytokine mechanisms."
Muscle h... | 1 | Biochemistry |
The molecular organization of the nodes corresponds to their specialized function in impulse propagation. The level of sodium channels in the node versus the internode suggests that the number IMPs corresponds to sodium channels. Potassium channels are essentially absent in the nodal axolemma, whereas they are highly... | 1 | Biochemistry |
Several techniques of re-utilising the spoil tips exist, usually including either geotechnics or recycling. Most commonly, old spoil tips are partially revegetated to provide valuable green spaces since they are inappropriate for building purposes. At Nœux-les-Mines, an artificial ski slope has been constructed on the ... | 8 | Metallurgy |
Polymer molecules within a brush are stretched away from the attachment surface as a result of the fact that they repel each other (steric repulsion or osmotic pressure). More precisely, they are more elongated near the attachment point and unstretched at the free end, as depicted on the drawing.
More precisely, within... | 7 | Physical Chemistry |
In organic chemistry, a hemiacetal or a hemiketal has the general formula , where is hydrogen or an organic substituent. They generally result from the addition of an alcohol (a compound with at least one group) to an aldehyde () or a ketone (), although the latter are sometimes called hemiketals. Most sugars are hem... | 0 | Organic Chemistry |
Flutamide has been found to be effective in the treatment of acne and seborrhea in women in a number of studies. In a long-term study of 230 women with acne, 211 of whom also had seborrhea, very-low-dose flutamide alone or in combination with an oral contraceptive caused a marked decrease in acne and seborrhea after 6 ... | 4 | Stereochemistry |
Production and use of Rieke metals often involves the handling of highly pyrophoric materials, requiring the use of air-free techniques. | 0 | Organic Chemistry |
The localization of ADAM17 is speculated to be an important determinant of shedding activity. TNF-α processing has classically been understood to occur in the trans-Golgi network, and be closely connected to transport of soluble TNF-α to the cell surface. Shedding is also associated with clustering of ADAM17 with its s... | 1 | Biochemistry |
Terpenoids facilitate communication between plants and insects, mammals, fungi, microorganisms, and other plants. Terpenoids may act as both attractants and repellants for various insects. For example, pine shoot beetles (Tomicus piniperda) are attracted to certain monoterpenes ( (+/-)-a-pinene, (+)-3-carene and terpin... | 1 | Biochemistry |
Fluorine is relatively rare in the universe compared to other elements of nearby atomic weight. On Earth, fluorine is essentially found only in mineral compounds because of its reactivity. The main commercial source, fluorite, is a common mineral. | 9 | Geochemistry |
A body-centered cubic unit cell has six octahedral voids located at the center of each face of the unit cell, and twelve further ones located at the midpoint of each edge of the same cell, for a total of six net octahedral voids. Additionally, there are 24 tetrahedral voids located in a square spacing around each octah... | 3 | Analytical Chemistry |
Various diphosphates are used as emulsifiers, stabilisers, acidity regulators, raising agents, sequestrants, and water retention agents in food processing. They are classified in the E number scheme under E450:
*E450(a): disodium dihydrogen diphosphate; trisodium diphosphate; tetrasodium diphosphate (TSPP); tetrapotass... | 1 | Biochemistry |
Multiple Michael/aldol reaction (or domino Michael/aldol reaction) is a consecutive series of reactions composed of either Michael addition reactions or aldol reactions. More than two steps of reaction are usually involved. This reaction has been used for synthesis of large macrocyclic or polycyclic ring structures.
Ga... | 0 | Organic Chemistry |
Lithium-associated hyperparathyroidism is the leading cause of hypercalcemia in lithium-treated patients. Lithium may lead to exacerbation of pre-existing primary hyperparathyroidism or cause an increased set-point of calcium for parathyroid hormone suppression, leading to parathyroid hyperplasia. | 1 | Biochemistry |
The hexol cation exists as two optical isomers that are mirror images of each other, depending on the arrangement of the bonds between the central cobalt atom and the three bidentate peripheral units [Co(NH)(HO)]. It belongs to the D point group. The nature of chirality can be compared to that of the ferrioxalate anio... | 4 | Stereochemistry |
Dislocations require proper lattice ordering to move through a material. At grain boundaries, there is a lattice mismatch, and every atom that lies on the boundary is uncoordinated. This stops dislocations that encounter the boundary from moving. | 8 | Metallurgy |
Coelenteramine is a metabolic product of the bioluminescent reactions in organisms that utilize coelenterazine. It was first isolated from Aequorea victoria along with coelenteramide after coelenterates were stimulated to emit light. | 1 | Biochemistry |
Traditionally the level of multiplexing in SILAC was limited due to the number of SILAC isotopes available. Recently, a new technique called NeuCode (neutron encoding) SILAC, has augmented the level of multiplexing achievable with metabolic labeling (up to 4). The NeuCode amino acid method is similar to SILAC but diffe... | 1 | Biochemistry |
Hydrogen peroxide can be detected with high sensitivity by the luminescence of lanthanide probes—however only at relatively high pH values. A lanthanide-based analytical procedure was proposed in 2002 based on the finding that the europium complex with various tetracyclines binds hydrogen peroxide forming a luminescent... | 1 | Biochemistry |
The osmolarity of a solution, given in osmoles per liter (osmol/L) is calculated from the following expression:
where
* is the osmotic coefficient, which accounts for the degree of non-ideality of the solution. In the simplest case it is the degree of dissociation of the solute. Then, is between 0 and 1 where 1 indic... | 3 | Analytical Chemistry |
Two molecules (including polyatomic ions) A and B have the same structure if each atom of A can be paired with an atom of B of the same element, in a one-to-one way, so that for every bond in A there is a bond in B, of the same type, between corresponding atoms; and vice versa. This requirement applies also complex bo... | 4 | Stereochemistry |
* G. Reginald Bashforth, The manufacture of iron and steel, vol. 2: Steel production, London, Chapman & Hall Ltd, 1951, 461 p.
* Thomas Turner (dir.), The metallurgy of iron: By Thomas Turner...: Being one of a series of treatises on metallurgy written by associates of the Royal school of mines, C. Griffin & company, l... | 8 | Metallurgy |
In these processes, iron ore is brought into contact with reducing gases produced and heated by a separate plant in a closed enclosure. As a result, these processes are naturally suited to the use of natural gas. | 8 | Metallurgy |
Common uses of episulfides in both academic and industrial settings most often involve their use as monomers in polymerization reactions.
Episulfides have an innate ring strain due to the nature of three-membered rings. Therefore, most reactions of episulfides involve ring-opening. Most commonly, nucleophiles are emp... | 0 | Organic Chemistry |
QCD is one part of the modern theory of particle physics called the Standard Model. Other parts of this theory deal with electroweak interactions and neutrinos. The theory of electrodynamics has been tested and found correct to a few parts in a billion. The theory of weak interactions has been tested and found correct ... | 7 | Physical Chemistry |
Statistics Canada administers the Canadian Health Measures Survey, which includes biomonitoring for environmental chemicals. Health Canada administers a program called Mother-Infant Research on Environmental Chemicals, which focuses on 2,000 pregnant women and their infants. | 2 | Environmental Chemistry |
Although the presence of carbon in the Earths core is well-constrained, recent studies suggest large inventories of carbon could be stored in this region. Shear (S) waves moving through the inner core travel at about fifty percent of the velocity expected for most iron-rich alloys. Considering the cores composition is ... | 9 | Geochemistry |
Flash photolysis is a pump-probe laboratory technique, in which a sample is first excited by a strong pulse of light from a pulsed laser of nanosecond, picosecond, or femtosecond pulse width or by another short-pulse light source such as a flash lamp. This first strong pulse is called the pump pulse and starts a chemic... | 7 | Physical Chemistry |
In neuroscience, repolarization refers to the change in membrane potential that returns it to a negative value just after the depolarization phase of an action potential which has changed the membrane potential to a positive value. The repolarization phase usually returns the membrane potential back to the resting memb... | 7 | Physical Chemistry |
The Polyarc reactor needs hydrogen and air, which are both gases used in any existing FID setup. Software for capturing and analyzing FID signals remains applicable, and no extra software is necessary for the device. Gas flows to the device are controlled using an external control box that must be calibrated manually f... | 3 | Analytical Chemistry |
Carbonate esters have planar OC(OC) cores, which confers rigidity. The unique O=C bond is short (1.173 Å in the depicted example), while the C-O bonds are more ether-like (the bond distances of 1.326 Å for the example depicted).
Carbonate esters can be divided into three structural classes: acyclic, cyclic, and polym... | 0 | Organic Chemistry |
Removal of a halogen atom from an organohalide generates a radical. Such reactions are difficult to achieve and, when they can be achieved, these processes often lead to complicated mixtures. When a pair of halides are mutually adjacent (vicinal), their removal is favored. Such reactions give alkenes in the case of v... | 0 | Organic Chemistry |
Each part of the digestive system is subject to a wide range of disorders many of which can be congenital. Mouth diseases can also be caused by pathogenic bacteria, viruses, fungi and as a side effect of some medications. Mouth diseases include tongue diseases and salivary gland diseases. A common gum disease in the mo... | 1 | Biochemistry |
Somatic cells of different types can be fused to obtain hybrid cells. Hybrid cells are useful in a variety of ways, e.g.,
:(i) to study the control of cell division and gene expression,
:(ii) to investigate malignant transformations,
:(iii) to obtain viral replication,
:(iv) for gene or chromosome mapping and for
:(v) ... | 1 | Biochemistry |
Because digitized 2D periodic images are in the information theoretical approach just data organized in 2D arrays of pixels, core features of Crystallographic Image Processing can be utilized independent of the type of microscope with which the images/data were recorded. The CIP technique has, accordingly been applied ... | 3 | Analytical Chemistry |
Humidity and cloud coverage significantly weaken PDRC effectiveness. A study by Huang et al. noted that "vertical variations of both vapor concentration and temperature in the atmosphere" can have a considerable impact on radiative coolers. The authors put forth that aerosol and cloud coverage can also weaken the effec... | 7 | Physical Chemistry |
RdRps are highly conserved throughout viruses and are even related to telomerase, though the reason for this is an ongoing question as of 2009. The similarity has led to speculation that viral RdRps are ancestral to human telomerase.
The most famous example of RdRp is that of the polio virus. The viral genome is compo... | 1 | Biochemistry |
In inorganic chemistry, a Nowotny chimney ladder phase (NCL phase) is a particular intermetallic crystal structure found with certain binary compounds. NLC phases are generally tetragonal and are composed of two separate sublattices. The first is a tetragonal array of transition metal atoms, generally from group 4 thro... | 8 | Metallurgy |
Hyperthecosis, or ovarian hyperthecosis, is hyperplasia of the theca interna of the ovary. Hyperthecosis occurs when an area of luteinization occurs along with stromal hyperplasia. The luteinized cells produce androgens, which may lead to hirsutism and virilization (or masculinization) in affected women.
The term hyper... | 1 | Biochemistry |
Vancomycin is one of the few antibiotics used in plant tissue culture to eliminate Gram-positive bacterial infection. It has relatively low toxicity to plants. | 0 | Organic Chemistry |
Faraday's laws of electrolysis are quantitative relationships based on the electrochemical research published by Michael Faraday in 1833. | 7 | Physical Chemistry |
R-22 is often used as an alternative to the highly ozone-depleting CFC-11 and CFC-12, because of its relatively low ozone depletion potential of 0.055, among the lowest for chlorine-containing haloalkanes. However, even this lower ozone depletion potential is no longer considered acceptable.
As an additional environme... | 2 | Environmental Chemistry |
Fluorescence spectroscopy aka fluorometry or spectrofluorometry, is a type of electromagnetic spectroscopy which analyzes fluorescence from a sample. It involves using a beam of light, usually ultraviolet light, that excites the electrons in molecules of certain compounds and causes them to emit light of a lower energy... | 7 | Physical Chemistry |
Chemical synapses are biological junctions through which neurons' signals can be sent to each other and to non-neuronal cells such as those in muscles or glands. Chemical synapses allow neurons to form circuits within the central nervous system. They are crucial to the biological computations that underlie perception a... | 1 | Biochemistry |
Spectroelectrochemistry (SEC) is a set of multi-response analytical techniques in which complementary chemical information (electrochemical and spectroscopic) is obtained in a single experiment. Spectroelectrochemistry provides a whole vision of the phenomena that take place in the electrode process. The first spectroe... | 7 | Physical Chemistry |
A common form for the rate equation is a power law:
The constant is called the rate constant. The exponents, which can be fractional, are called partial orders of reaction and their sum is the overall order of reaction.
In a dilute solution, an elementary reaction (one having a single step with a single transition sta... | 7 | Physical Chemistry |
In organic chemistry, functionality is often used as a synonym for functional group. For example, a hydroxyl group can also be called a HO-function.
Functionalisation means the introduction of functional groups, for example
* the functionalisation of a surface (e.g. silanization for the specific modification of the adh... | 0 | Organic Chemistry |
Many viruses undergo frequent mutations that result in changes in amino acid composition of their important proteins. Epitopes located on the protein may also undergo alterations in the process. Such an altered epitope binds less strongly with the antibodies specific to the unaltered epitope that would have stimulated... | 1 | Biochemistry |
Acylsilanes are a group of chemical compounds sharing a common functional group with the general structure RC(O)-SiR. | 0 | Organic Chemistry |
At the beginning of the twentieth century, as steel production became more dependent on the use of electric arc furnace technology in mini-mill environments, the convenient transportation of scrap metal became a competitive advantage of manufacturers, so the availability of geographical resources was no longer the most... | 8 | Metallurgy |
The Nernst–Planck equation is a conservation of mass equation used to describe the motion of a charged chemical species in a fluid medium. It extends Fick's law of diffusion for the case where the diffusing particles are also moved with respect to the fluid by electrostatic forces. It is named after Walther Nernst and ... | 7 | Physical Chemistry |
Methane (CH) in the Earth's atmosphere is a powerful greenhouse gas with a global warming potential (GWP) 84 times greater than CO over a 20-year time frame. Methane is not as persistent as CO, and tails off to about 28 times greater than CO over a 100-year time frame.
Radiative or climate forcing is the scientific c... | 2 | Environmental Chemistry |
Biopolymers are polymers produced by living organisms. Cellulose and starch, proteins and peptides, and DNA and RNA are all examples of biopolymers, in which the monomeric units, respectively, are sugars, amino acids, and nucleotides. Cellulose is both the most common biopolymer and the most common organic compound on ... | 1 | Biochemistry |
Serinolamide A is a cannabinoid structurally related to endocannabinoids found in cyanobacteria such as Lyngbya majuscula and other species in the Oscillatoria family. | 1 | Biochemistry |
Recently it has been shown that a Michaelian signaling pathway can be converted to an ultrasensitive signaling pathway by the introduction of two positive feedback loops. In this synthetic biology approach, Palani and Sarkar began with a linear, graded response pathway, a pathway that showed a proportional increase in ... | 1 | Biochemistry |
Due to the lack of long-range order, standard crystallographic techniques are often inadequate in determining the structure of amorphous solids. A variety of electron, X-ray, and computation-based techniques have been used to characterize amorphous materials. Multi-modal analysis is very common for amorphous materials. | 7 | Physical Chemistry |
DNA condensation can be induced in vitro either by applying external force to bring the double helices together, or by inducing attractive interactions between the DNA segments. The former can be achieved e.g. with the help of the osmotic pressure exerted by crowding neutral polymers in the presence of monovalent salts... | 1 | Biochemistry |
There are many types of coupled transition such as are observed in vibration–rotation spectra. The excited-state wave function is the product of two wave functions such as vibrational and rotational. The general principle is that the symmetry of the excited state is obtained as the direct product of the symmetries of t... | 7 | Physical Chemistry |
Katsonis was born in Vienna. She grew up in Orsay, in Paris Region. She is half French and half Greek. She studied chemical engineering at the Chimie ParisTech, before moving to Ecole Normal Superieure for her graduate studies with Ludovic Jullien. Katsonis earned her doctoral degree at the Pierre and Marie Curie Unive... | 0 | Organic Chemistry |
Nikolai Timofeevich Beliaev or Nicholas Timothy Belaiew (26 June 1878 – 5 November 1955) was a Russian metallurgist. He was famous for his studies on Damascus steel and the idea of crystallization in metals and the production of Widmanstatten structures. He also wrote on the history of steel making.
Beliaev was born i... | 8 | Metallurgy |
Dr. Chris Ballentine is the chair of geochemistry and head of the Department of Earth Sciences at the University of Oxford, in the United Kingdom. He uses properties of the noble gases to understand the origin and evolution of Earth's atmosphere and mantle. | 9 | Geochemistry |
In 2010, the International Fragrance Association published a list of 3,059 chemicals used in 2011 based on a voluntary survey of its members, identifying about 90% of the world's production volume of fragrances. | 0 | Organic Chemistry |
The N-terminal domain of restriction endonuclease EcoRII; the C-terminal domain of restriction endonuclease BfiI possess a similar DNA-binding pseudobarrel protein fold. | 1 | Biochemistry |
Trabectedin, sold under the brand name Yondelis, is an antitumor chemotherapy medication for the treatment of advanced soft-tissue sarcoma and ovarian cancer.
The most common adverse reactions include nausea, fatigue, vomiting, constipation, decreased appetite, diarrhea, peripheral edema, dyspnea, and headache.
It is s... | 0 | Organic Chemistry |
The experiment itself involves having a radioactive positron source (often Na) situated near the analyte. Positrons are emitted near-simultaneously with gamma rays. These gamma rays are detected by a nearby scintillator. | 7 | Physical Chemistry |
The concentration of Zn in bulk silicate Earth is ~55 ppm, while its average concentration in fresh mid-oceanic ridge basalt (MORB) glass is ~87 ppm. Like Cu, Zn commonly associates with Fe to form a variety of zinc sulfide minerals such as sphalerite. Additionally, Zn associates with carbonates and hydroxides to form ... | 9 | Geochemistry |
Foot-and-mouth disease virus (FMDV) is a member of the Aphthovirus genus in the Picornaviridae family and is the cause of foot-and-mouth disease in pigs, cattle, sheep and goats. It is a non-enveloped, positive strand, RNA virus. FMDV is a highly contagious virus. It enters the body through inhalation. | 1 | Biochemistry |
There has been evidence that the nonsense-mediated mRNA decay pathway participates in X chromosome dosage compensation in mammals. In higher eukaryotes with dimorphic sex chromosomes, such as humans and fruit flies, males have one X chromosome, whereas females have two. These organisms have evolved a mechanism that com... | 1 | Biochemistry |
* Killick, D. 2004. Review Essay: "What Do We Know About African Iron Working?" Journal of African Archaeology. Vol 2 (1) pp. 135–152
* Bocoum, H. (ed.), 2004, The origins of iron metallurgy in Africa – New lights on its antiquity, H. Bocoum (ed.), UNESCO publishing
* Schmidt, P.R., Mapunda, B.B., 1996. "Ideology and ... | 8 | Metallurgy |
Unlike other ACE inhibitors that are primarily excreted by the kidneys, fosinopril is eliminated from the body by both renal and hepatic pathways. This characteristic of fosinopril makes the drug a safer choice than other ACE inhibitors for heart failure patients with impaired kidney function resulting from poor perfus... | 4 | Stereochemistry |
The term neuston describes the organisms in the SML and was first suggested by Naumann in 1917. As in other marine ecosystems, bacterioneuston communities have important roles in SML functioning. Bacterioneuston community composition of the SML has been analysed and compared to the underlying water in different habitat... | 7 | Physical Chemistry |
This is the smallest piece, which was moved to Mandu during Dilawar Khan's reign. Its length is according to both Coussen and Roessler. It is mostly of an octagonal cross-section, except one circular part at the end. Roessler estimated its weight at .
This piece was brought back from Mandu to Dhar sometime between 18... | 8 | Metallurgy |
In 1910, Goldberg married Ullman. In 1923, they moved back to Geneva when Ullman accepted a faculty position at Geneva University.
Her exact death date is not known, but her name does appear at the top of a list of people signing a memorial notice in a Geneva newspaper for her deceased husband, Fritz Ullmann in 1939. | 0 | Organic Chemistry |
A frequency comb allows a direct link from radio frequency standards to optical frequencies. Current frequency standards such as atomic clocks operate in the microwave region of the spectrum, and the frequency comb brings the accuracy of such clocks into the optical part of the electromagnetic spectrum. A simple elect... | 7 | Physical Chemistry |
Biosurveys are used by government agencies responsible for management of public lands, environmental planning and/or environmental regulation to assess ecological resources, such as rivers, streams, lakes and wetlands. They involve collection and analysis of animal and/or plant samples which serve as bioindicators. The... | 2 | Environmental Chemistry |
In March 2013, NASA reported Curiosity found evidence that geochemical conditions in Gale Crater were once suitable for microbial life after analyzing the first drilled sample of Martian rock, "John Klein" rock at Yellowknife Bay in Gale Crater. The rover detected water, carbon dioxide, oxygen, sulfur dioxide and hydr... | 9 | Geochemistry |
Hagemann's ester has been used as a key building block in many syntheses. For example, a key intermediate for the fungal hormone trisporic acid was made by its alkylation and it has been used to make sterols. Other authors have used it in inverse-electron-demand Diels–Alder reactions leading to sesquiterpene dimers or ... | 0 | Organic Chemistry |
In igneous petrology, an intermediate composition refers to the chemical composition of a rock that has 51.563 wt% SiO being an intermediate between felsic and mafic compositions. Typical intermediate rocks include andesite and trachyandesite among volcanic rocks and diorite and granodiorite among plutonic rocks. | 9 | Geochemistry |
Secondary sulfides—those formed by supergene secondary enrichment—are resistant (refractory) to sulfuric leaching. Secondary copper sulfides are dominated by the mineral chalcocite; a mineral formed from primary sulfides, like chalcopyrite, that undergo chemical processes such as oxidation or reduction. Typically, seco... | 8 | Metallurgy |
The majority of the computer models available for water and solute transport in the soil (e.g. Swatre, DrainMod ) are based on Richard's differential equation for the movement of water in unsaturated soil in combination with a differential salinity dispersion equation. The models require input of soil characteristics ... | 9 | Geochemistry |
A sensor-based sorting equipment supplier with large installed base in the industries mining, recycling and food. Tomras sensor-based sorting equipment and services for the precious metals and base metals segment are marketed through a cooperation agreement with Outotec from Finland, which brings the extensive comminut... | 3 | Analytical Chemistry |
Adhesion GPCRs appear capable to follow standard GPCR signaling modes and signal through Gαs, Gαq, Gαi, and Gα12/13. As of today, many of the adhesion GPCRs are still orphan receptors and their signalling pathways have not been identified. Research groups are working to elucidate the downstream signaling molecules util... | 1 | Biochemistry |
Due to the regulatory role during transcription of epigenetic modifications in genes, it is not surprising that changes in epigenetic markers, such as acetylation, can contribute to cancer development. HDACs expression and activity in tumor cells is very different from normal cells. The overexpression and increased act... | 0 | Organic Chemistry |
The organometallic chemistry of titanium typically starts from . An important reaction involves sodium cyclopentadienyl to give titanocene dichloride, . This compound and many of its derivatives are precursors to Ziegler–Natta catalysts. Tebbe's reagent, useful in organic chemistry, is an aluminium-containing derivativ... | 0 | Organic Chemistry |
* [http://www.anilaggrawal.com/ij/indexpapers.html Anil Aggrawal's Internet Journal of Forensic Medicine and Toxicology] .
* Forensic Magazine – [http://www.forensicmag.com Forensicmag.com].
* [https://web.archive.org/web/20110222013558/http://www2.fbi.gov/hq/lab/fsc/current/index.htm Forensic Science Communications], ... | 3 | Analytical Chemistry |
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