Crowns
Tooth Crown
The upper part of the tooth, which joins the lower part of the tooth (TOOTH ROOT) at the cervix (TOOTH CERVIX) at a line called the cementoenamel junction. The entire surface of the crown is covered with enamel which is thicker at the extremity and becomes progressively thinner toward the cervix. (From Jablonski, Dictionary of Dentistry, 1992, p216)
Crown Ethers
Macrocyclic polyethers with the repeating unit of (-CH2-CH2-O)n where n is greater than 2 and some oxygens may be replaced by nitrogen, sulfur or phosphorus. These compounds are useful for coordinating CATIONS. The nomenclature uses a prefix to indicate the size of the ring and a suffix for the number of heteroatoms.
Polymers
Amines
Carbon
Programming, Linear
A technique of operations research for solving certain kinds of problems involving many variables where a best value or set of best values is to be found. It is most likely to be feasible when the quantity to be optimized, sometimes called the objective function, can be stated as a mathematical expression in terms of the various activities within the system, and when this expression is simply proportional to the measure of the activities, i.e., is linear, and when all the restrictions are also linear. It is different from computer programming, although problems using linear programming techniques may be programmed on a computer.
Molecular Structure
Hydrogen
The first chemical element in the periodic table. It has the atomic symbol H, atomic number 1, and atomic weight [1.00784; 1.00811]. It exists, under normal conditions, as a colorless, odorless, tasteless, diatomic gas. Hydrogen ions are PROTONS. Besides the common H1 isotope, hydrogen exists as the stable isotope DEUTERIUM and the unstable, radioactive isotope TRITIUM.
Inorganic Chemicals
X-Ray Diffraction
The scattering of x-rays by matter, especially crystals, with accompanying variation in intensity due to interference effects. Analysis of the crystal structure of materials is performed by passing x-rays through them and registering the diffraction image of the rays (CRYSTALLOGRAPHY, X-RAY). (From McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Nanocomposites
Crystallography, X-Ray
Crown-Rump Length
Authorship
Knowledge Bases
Pregnancy Trimester, First
Ultrasonography, Prenatal
Gestational Age
Gestational Sac
Round-shaped structure usually located in the upper fundus of the UTERUS in early pregnancy. It comprises EMBRYO; AMNIOTIC FLUID; and YOLK SAC. It is visible in PRENATAL ULTRASONOGRAPHY by the fifth week of pregnancy. Its size is often used to determine and monitor GESTATIONAL AGE; FETAL GROWTH; and PREGNANCY COMPLICATIONS.
Zinc
A metallic element of atomic number 30 and atomic weight 65.38. It is a necessary trace element in the diet, forming an essential part of many enzymes, and playing an important role in protein synthesis and in cell division. Zinc deficiency is associated with ANEMIA, short stature, HYPOGONADISM, impaired WOUND HEALING, and geophagia. It is known by the symbol Zn.
Metallothionein
Drug Evaluation, Preclinical
Zinc Fingers
Motifs in DNA- and RNA-binding proteins whose amino acids are folded into a single structural unit around a zinc atom. In the classic zinc finger, one zinc atom is bound to two cysteines and two histidines. In between the cysteines and histidines are 12 residues which form a DNA binding fingertip. By variations in the composition of the sequences in the fingertip and the number and spacing of tandem repeats of the motif, zinc fingers can form a large number of different sequence specific binding sites.
Cation Transport Proteins
Zinc Isotopes
Rotaxanes
Complex compounds in which a dumbbell shaped molecule is encircled by a macrocycle. They are named after rota (wheel) and axis (axle). Notation with a prefix is used to indicate the number of interlocked components. They have potential use in NANOTECHNOLOGY. Rotaxanes have been made with CYCLODEXTRINS and CYCLIC ETHERS.
Ethylene Oxide
A colorless and flammable gas at room temperature and pressure. Ethylene oxide is a bactericidal, fungicidal, and sporicidal disinfectant. It is effective against most micro-organisms, including viruses. It is used as a fumigant for foodstuffs and textiles and as an agent for the gaseous sterilization of heat-labile pharmaceutical and surgical materials. (From Reynolds, Martindale The Extra Pharmacopoeia, 30th ed, p794)
Antimutagenic Agents
Nitro Compounds
Alkenes
Stereoisomerism
Cyclization
Catalysis
Health Facility Merger
GTP-Binding Protein alpha Subunits
The GTPase-containing subunits of heterotrimeric GTP-binding proteins. When dissociated from the heterotrimeric complex these subunits interact with a variety of second messenger systems. Hydrolysis of GTP by the inherent GTPase activity of the subunit causes it to revert to its inactive (heterotrimeric) form. The GTP-Binding protein alpha subunits are grouped into families according to the type of action they have on second messenger systems.
Polycyclic Hydrocarbons, Aromatic
A major group of unsaturated cyclic hydrocarbons containing two or more rings. The vast number of compounds of this important group, derived chiefly from petroleum and coal tar, are rather highly reactive and chemically versatile. The name is due to the strong and not unpleasant odor characteristic of most substances of this nature. (From Hawley's Condensed Chemical Dictionary, 12th ed, p96)
Receptors, Aryl Hydrocarbon
Cytoplasmic proteins that bind certain aryl hydrocarbons, translocate to the nucleus, and activate transcription of particular DNA segments. AH receptors are identified by their high-affinity binding to several carcinogenic or teratogenic environmental chemicals including polycyclic aromatic hydrocarbons found in cigarette smoke and smog, heterocyclic amines found in cooked foods, and halogenated hydrocarbons including dioxins and polychlorinated biphenyls. No endogenous ligand has been identified, but an unknown natural messenger with a role in cell differentiation and development is suspected.
Air Conditioning
The maintenance of certain aspects of the environment within a defined space to facilitate the function of that space; aspects controlled include air temperature and motion, radiant heat level, moisture, and concentration of pollutants such as dust, microorganisms, and gases. (McGraw-Hill Dictionary of Scientific and Technical Terms, 4th ed)
Energy-Generating Resources
Bioelectric Energy Sources
Heat Exhaustion
Metal ion promoted cleavage of RNA phosphodiester bonds: from Zn(II) aqua ion to artificial ribonucleases. (1/3)
The potential of Zn(2+) azacrown chelates as constituents of artificial ribonucleases is discussed. (+info)Labeling of adenovirus particles with PARACEST agents. (2/3)
(+info)Silica film coating method for veneering resin composite. (3/3)
The preceramic polymer perhydropolysilazane (PHPS) is an attractive candidate as a coating material to prevent discoloration of veneering resin composites. At the present time, however, a practical method to apply this material is not available. The purpose of this study was to establish a low-temperature method for applying a silica film coating to a veneering resin composite. Two types of PHPS, NP and NL, were coated onto a veneering resin composite. The specimens were exposed to hydrogen peroxide vapor at 97 degrees C, and the state of the conversion process was evaluated using FT-IR. With exposure to the hydrogen peroxide vapor, a 0.5-microm-thick silica film similar to that produced by baking was formed on the surface of the NP samples in 10 min, while a 0.2-microm-thick film was formed on the NL in 15 min. The silica coating method described in this study may mitigate the discoloration of veneering resin composite. (+info)
Preparation of acetaminophen capsules containing beads prepared by hot-melt direct blend coating method
Adenovirus particles, artwork - Stock Image C016/8963 - Science Photo Library
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Sealing material coating method for fuel cell-use separator - Patent # 7226635 - PatentGenius
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BS EN 2491:1997 - Molybdenum disulphide dry lubricants. Coating methods
Evaluation of electroless nickel-phosphorus (EN) coatings
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Drug Eluting Stents
Applications filed at Feb 01 2018 | Heating Assembly | Patents.com
Health & Life science
Sparrho | Structural and optical properties of nanostructure CdZnO fi
NIOSHTIC-2 Publications Search - 10009736 - A New High-temperature Soft Solder System.
Positron annihilation characteristics in mesostructural silica films with various porosities (Journal Article) | SciTech Connect
RESIN COMPOSITION - Patent application
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Department of Chemistry
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Two papers by Seeger and Saddiqi on the front cover
Anisotropic thermal conductivity of nanoporous silica film - IEEE Journals & Magazine
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Soap-film coating : High-speed deposition of multilayer nanofilms
Anti-friction coating - SAE International
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MAINTAINING A FIXED DISTANCE BY PROVIDING AN AIR CUSHION DURING COATING OF A MEDICAL DEVICE - Patent application
Sol-gel spin coating derived ZnO thin film to sense the acetic acid vapor
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Ether
Polyethers are compounds with more than one ether group. The crown ethers are examples of small polyethers. Some toxins ... Related compounds[edit]. Many classes of compounds with C-O-C linkages are not considered ethers: Esters (R-C(=O)-O-R′), ... Crown ethers Cyclic polyethers that are used as phase transfer catalysts. Polyethylene glycol (PEG) A linear polyether, e.g. ... Ethers are a class of organic compounds that contain an ether group-an oxygen atom connected to two alkyl or aryl groups. They ...
2-Bromoethyl ether
... (or Bis(2-bromoethyl) ether) is an organobromine compound that is also an ether. It is used in the ... manufacture of pharmaceuticals and crown ethers. Kudryatsev, K. V.; Samofin, V. V. (January 1997). "New approach to the ... Chemistry of Heterocyclic Compounds. 33 (1): 106-111. doi:10.1007/BF02290756. S2CID 95541398. Hansen, Thomas K.; Jørgensen, ...
Sodium
... forms complexes with crown ethers, cryptands and other ligands.[25] For example, 15-crown-5 has a high affinity for ... Intermetallic compounds. Sodium forms alloys with many metals, such as potassium, calcium, lead, and the group 11 and 12 ... Crown ethers, like 15-crown-5, may be used as a phase-transfer catalyst.[23] ... In a flame test, sodium and its compounds glow yellow[7] because the excited 3s electrons of sodium emit a photon when they ...
Gyeongbokgung
"Donggung, the Crown Prince's compound". Gyeongbokgung Palace. Archived from the original on 3 July 2013. Retrieved 13 April ... The Crown Prince's and Princesses' Quarters) Bihyeongak (비현각, The Study of the Crown Prince) Gyeonghoeru (경회루, The Royal ... Donggung (Korean: 동궁; Hanja: 東宮), located south of the Hyangwonjeong pavilion, were the living quarters for the crown prince ... The four main buildings of the compound were Jaseondang and Bihyeongak, Chunbang (the lecture hall, where the prince received ...
Macrocycle
that bind and pre-organize compounds, guiding them toward formation of a particular ring size. The crown ethers are often ... Pedersen, Charles J. (1988). "Macrocyclic Polyethers: Dibenzo-18-Crown-6 Polyether and Dicyclohexyl-18-Crown-6 Polyether". ... Zhichang Liu; Siva Krishna Mohan Nalluria; J. Fraser Stoddart (2017). "Surveying macrocyclic chemistry: from flexible crown ... Classical examples include the crown ethers, calixarenes, porphyrins, and cyclodextrins. Macrocycles describe a large, mature ...
Tribulus terrestris
Stems branch from the crown and are densely hairy. Leaves are opposite and pinnately compound. Densely hairy leaflets are ... The stems radiate from the crown to a diameter of about 10 cm (3.9 in) to over 1 m (3 ft 3 in), often branching. They are ... Toxic compounds in the plant are known to cause liver damage when ingested at harmful dosages. When ingested, phylloerythrin ... and the root crown. The larvae tunnel in the pith where they feed and pupate. Adults of both species overwinter in plant debris ...
Tabebuia rosea
The tree crown is wide, with irregular, stratified ramification and only few thick branches. The bark can be gray to brown, in ... Leaves are compound, digitate and deciduous. Each leaf has five leaflets of variable size, the middle one being the largest. ... Among the various active phytochemicals in the tree is lapachol, a natural organic compound isolated from various other ...
Ligularia przewalskii
They are propagated from seed or by cutting up the crowns. Botanic Garden and Botanical Museum Berlin-Dahlem. "Details for: ... Its roots contain thirteen compounds, some with antibacterial activity. Plants grow best under cool, moist conditions, and ...
Ionophore
These compounds have also shown to have various biological effects and a synergistic effect when combined with the ion they ... Many synthetic ionophores are based on crown ethers, cryptands, and calixarenes. Pyrazole-pyridine and bis-pyrazole derivatives ... Some of these compounds have also been used as growth and production promoters in certain ruminants, such as cattles, and ... Even simple organic compounds, such as phenols, exhibit ionophoric properties. The majority of synthetic receptors used in the ...
Oxidation state
"Synthesis of anionic sandwich compounds: [Ti(η-C6H5R)2]- and the crystal structure of [K(18-crown-6)(µ-H)Mo(η-C5H5)2]". ... In a compound or ion, the sum of the oxidation states equals the total charge of the compound or ion. Fluorine in compounds has ... When it was realized that some metals form two different binary compounds with the same nonmetal, the two compounds were often ... Oxygen in compounds has OS = −2 but only when not bonded to oxygen (e.g. in peroxides) or fluorine. This set of postulates ...
Cyclooctane
The crown conformation (below)[4] is slightly less stable. Among the many compounds exhibiting the crown conformation ( ... but it is often a reference compound for saturated eight-membered ring compounds in general. ... the "Gold Book") (1997). Online corrected version: (2006-) "crown conformation". doi:10.1351/goldbook.C01422 ...
Phytoalexin
... was the first compound isolated from garlic as a phytoalexin, a product induced in plants by continuous stress. This compound ... Mayama, S.; Matsuura, Y.; Iida, H.; Tani, T. (1982). "The role of avenalumin in the resistance of oat to crown rust, Puccinia ... Such compounds can be implied in the hypersensitive response of plants. High levels of polyphenols in some woods can explain ... Allixin (3-hydroxy-5-methoxy-6-methyl-2-pentyl-4H-pyran-4-one), a non-sulfur-containing compound having a γ-pyrone skeleton ...
Macrocyclic ligand
... "crown" compounds with variety of ring sizes, a number of ether oxygens and substituent groups. Shortly after crown compounds, ... "Macrocyclic coordination compounds formed by condensation of metal-amine complexes with aliphatic carbonyl compounds" ... Classic examples are crown ethers and porphyrins. Macrocyclic ligands exhibit particularly high affinity for metal ions. ... In 1967 a new series of macrocyclic compounds was reported by Pederson, who synthesized a number of cyclic polyethers or " ...
Christian Cambillau
... crown ethers and cryptates Functional activation of fluorinated compounds •Graphic Software (1982-2005): TOM/FRODO + "FIT" ... crown-ether and cryptates). After his Ph.D. (1978) he spent one year at ONERA for his military service. He was then hired by ...
Hard hat
Bakelite resin compounded with wire screen and linen, the Skullgard Helmet is still manufactured. MSA also produced a low-crown ...
Lieutenant Governor of Nova Scotia
ISBN 978-145970988-1. Jackson, D. Michael (2012). "Chapter 1: The Crown in the Provinces: Canada's Compound Monarchy". In ... Canada and the Crown. McGill-Queen's University Press. pp. 141-161. ISBN 978-1553392040. Jackson, D. Michael (2013). The Crown ... Edward's Crown. The Canadian Heraldic Authority designed the badge, with the authorisation on 20 May 2011 of Governor General ... Victoria 1867, V.63 Heard, Andrew (2020). "Chapter 2: The Provincial Crown and Lieutenant Governors". In Jackson, D. Micahel ( ...
Ossicle (echinoderm)
Crinoids are supported by jointed stalks containing substantial compound ossicles. The crown has ossicles scattered throughout ... Pedicellariae are compound ossicles that articulate with other ossicles and protrude from the aboral (upper) surface of some ... Ossicles have a variety of forms including flat plates, spines, rods and crosses, and specialised compound structures including ...
Sulfur
Illustrative organosulfur compounds Allicin, a chemical compound in garlic (R)-cysteine, an amino acid containing a thiol group ... Removing one atom from the crown gives S7, which is more of a deep yellow than the S8. HPLC analysis of "elemental sulfur" ... An important S-N compound is the cage tetrasulfur tetranitride (S4N4). Heating this compound gives polymeric sulfur nitride (( ... Many sulfur compounds are odoriferous, and the smells of odorized natural gas, skunk scent, grapefruit, and garlic are due to ...
Silver halide
... crown ether. Examples of compounds that reduces the solubility include many organic thiols and nitrogen compounds that do not ... Some compounds can considerably increase or decrease the solubility of AgX. Examples of compounds that increase the solubility ... and these compounds further substituted by hydrophobic groups. Compounds such as thiocyanate and thiosulfate enhance solubility ... The silver chloride compound forms a white precipitate, silver bromide a creamy coloured precipitate and silver iodide a yellow ...
Clematis brachiata
It tends to clamber to the tops of trees and shrubs, sprawling over the crowns. Leaves are compound with from 1 to 7 leaflets. ...
Dacryodes edulis
It has a relatively short trunk and a deep, dense crown. The bark is pale gray and rough with droplets of resin. The leaves are ... a compound with 5-8 pairs of leaflets. The upper surface of the leaves is glossy. The flowers are yellow and about 5 mm across ...
Barium oxide
It has a cubic structure and is used in cathode ray tubes, crown glass, and catalysts. It is harmful to human skin and if ... McGraw-Hill, 2002, ISBN 0-07-049439-8 "Compounds of barium: barium (II) oxide". Web Elements. The University of Sheffield. 2007 ... It replaced lead(II) oxide in the production of certain kinds of glass such as optical crown glass. While lead oxide raised the ... ISBN 978-0-618-94690-7. "Barium Oxide (chemical compound)". Encyclopædia Britannica. Encyclopædia Britannica. 2007. Retrieved ...
Psilocybe zapotecorum
... is a psilocybin mushroom which has psilocybin and psilocin as main active compounds. It is in the section ... According to Richard E. Schultes the Zapotec name translates as "Crown of thorns mushroom". Other sources give the Zapotec name ...
Monarchy in the Canadian provinces
Jackson, Michael D.; Haverstock, Lynda (10 June 2010). "The Crown in the Provinces: Canada's Compound Monarchy" (PDF). Kingston ... "It is true there is only one Crown, but as regards Crown revenues and Crown property by legislation assented to by the Crown ... Crown wards), as well as the owner of all state lands (Crown land), buildings and equipment (Crown-held property), state-owned ... "divided crown," or a "compound monarchy". The arrangement provides that each of Canada's provinces are all sovereign of each ...
Kamakahonu
His son, the crown prince Liholiho, also lived here, taking the name Kamehameha II. In December 1819, Kalanimoku led an army ... The residential compound included the personal shrine, ʻAhuʻena heiau, of the King. The name means "temple of the burning altar ...
Coordination sphere
Coordination number Ligand cone angle Coordination geometry What Is A Coordination Compound? Zhao, Meng; Wang, Hai-Bo; Ji, ... Crown-ethers bind to polyamine complexes through their second coordination sphere. Polyammonium cations bind to the nitrogen ...
Opine
It is a naturally occurring compound found in rotting fruits and vegetables. It was also isolated from crown gall tumors. ... Opines are low molecular weight compounds found in plant crown gall tumors or hairy root tumors produced by pathogenic bacteria ... It is obtained from crown gall tumors. Saccharopine Although not found in crown gall tumors, saccharopine (epsilon-N-(L-glutar- ... Mannopine Mannopine (N-1-(D-mannityl)-L-glutamine) is found in crown gall tumors. It is the head member of the mannityl family ...
Aesculus californica
It typically is multi-trunked, with a crown as broad as it is high. Trees are long lived, with an estimated lifespan between ... The leaves are dark green, palmately compound with five (rarely seven) leaflets. Each leaflet is 6-17 cm (2.4-6.7 in) long, ...
Leaf
Compound leaves are a characteristic of some families of higher plants, such as the Fabaceae. The middle vein of a compound ... Crown (botany). *Evolutionary history of leaves. *Evolutionary development of leaves *Leaf Area Index ... This is due to the presence of a compound called chlorophyll. This compound is essential for photosynthesis as it absorbs light ... A compound leaf has a fully subdivided blade, each leaflet of the blade being separated along a main or secondary vein. The ...
Transistor
Crown Publishers, New York. ISBN 978-0-7394-5670-5. .. *^ "transistor". American Heritage Dictionary (3rd ed.). Boston: ... Organic field-effect transistor (OFET), in which the semiconductor is an organic compound ... and the germanium and copper compound materials. In the course of trying to understand the mysterious reasons behind their ... types currently predominate but certain advanced microwave and high-performance versions now employ the compound semiconductor ...
Alkali metal
12-crown-4 for Li+, 15-crown-5 for Na+, 18-crown-6 for K+, and 21-crown-7 for Rb+) and cryptands due to electrostatic ... Compounds with the group 13 elementsEdit. The intermetallic compounds of the alkali metals with the heavier group 13 elements ( ... CompoundsEdit. The alkali metals form complete series of compounds with all usually encountered anions, which well illustrate ... Caesium compounds are rarely encountered by most people, but most caesium compounds are mildly toxic. Like rubidium, caesium ...
Anti-reflective coating
The most common type of optical glass is crown glass, which has an index of refraction of about 1.52. An optimal single-layer ... See, for example, US Patent 5,091,244.) Absorbing ARCs often make use of unusual optical properties exhibited in compound thin ... MgF2 on a crown glass surface gives a reflectance of about 1%, compared to 4% for bare glass. MgF2 coatings perform much better ...
Nicky Hayden
"Capirossi crowned king of Catalunya". crash.net. June 15, 2003.. *^ "Gibernau defeats Rossi in sizzling German duel". motogp. ... down after making an unscheduled pit stop-having run as high as fifth during the race-after losing grip on his softer-compound ...
Tetrapod
Crown groupEdit. Crown tetrapods are defined as the nearest common ancestor of all living tetrapods (amphibians, reptiles, ... The difference in density between air and water causes smells (certain chemical compounds detectable by chemoreceptors) to ... This is a node-based definition (the node being the nearest common ancestor). The group so defined is the crown group, or crown ... Stem tetrapods are all animals more closely related to tetrapods than to lungfish, but excluding the tetrapod crown group. The ...
Bhumibol Adulyadej
"The Crown Property Bureau (in Thai). 2007. Archived from the original on 9 August 2007. Retrieved 25 September 2007.. (พระราชบั ... a compound of Bhūmi (भूमि), meaning "Land"; Bala (बल), meaning "Strength" or "Power"; Atulya (अतुल्य), meaning "Incomparable"; ... Honorary Recipients of the Order of the Crown of the Realm. *Knights Grand Cross with Collar of the Order of Merit of the ... His only son and the next in line to rule the kingdom, Crown Prince Maha Vajiralongkorn, presided over the bathing ritual at ...
Given name
The name was given to Désirée Clary not at birth but when she was crowned Crown Princess of Sweden in 1810. ... Slavic names are often of a peaceful character, the compounds being derived from word roots meaning "to protect", "to love", " ... Regnal names and religious or monastic names are special given names bestowed upon someone receiving a crown or entering a ...
1793 Philadelphia yellow fever epidemic
New York: Crown Publishers. ISBN 978-0-375-82986-4. .. *. Butterfield, L. H. (ed.). Letters of Benjamin Rush.. [full citation ... In his 1794 account of the epidemic, Mathew Carey noted that other doctors claimed to have used calomel (a mercury compound) ...
Fish toxins
The leaves are compound, the bark is whitish or gray, and it has small, yellowish or purplish flowers. Flowers and fruits ... Lannea coromandelica in the family Anacardiaceae is a medium-sized to large deciduous tree with a spreading crown and stout ... Olax in the family Olacaceae is a climber with compound, dark-green leaves and white bark. This is the most extensively used ...
Parrot
"Red-crowned Parrot". American Bird Conservancy. Retrieved 6 January 2019.. *^ Benham, W. B. (1906). "Notes on the Flesh-eating ... Many species in the Americas, Africa, and Papua New Guinea consume clay, which releases minerals and absorbs toxic compounds ... Chestnut-fronted macaws, yellow-crowned amazons, and dusky-headed parakeets at a clay lick in Ecuador ... but the Pacific lorikeets in the genera Vini and Phigys can ruffle the feathers of the crown and nape, and the red-fan parrot ( ...
White-tailed eagle
They have an ample bill with a relatively high culmen, helping impart a relatively narrow and high crowned facial look, ... by inadvertent poisonings and epidemics of nesting failures due to various manmade chemical pesticides and organic compounds, ... which is usually darker on the crown, underparts and flanks. The legs and cere at this young nestling age can range from ...
Black people
Ayittey, George B.N. (1999). "How the Multilateral Institutions Compounded Africa's Economic Crisis". Law and Policy in ... thousands of Black Loyalists were resettled by the Crown in Canada afterward, such as Thomas Peters. In addition, an estimated ...
History of the petroleum industry in Canada (natural gas)
Consider this matter in the context that natural gas producers generally buy mineral rights from the Crown but must negotiate ... new regulations enacted by the Alberta government in 1960 forced the industry to reduce its emissions of such sulphur compounds ...
Flight attendant
Pamela Bianca Manalo, a flight attendant for Philippine Airlines before she was crowned Miss Philippines-Universe in 2009 ... which contain compounds that may act as hormone disruptors and increase the risk of some cancers.[58] ...
"கனடாவின் முதல் குடிமக்கள்" பக்கத்தின் திருத்தங்களுக்கிடையேயான வேறுபாடு - தமிழ்...
Main,The Canadian Crown and Indigenous peoples of Canada}}. [[File:David Laird explaining Treaty 8 Fort Vermilion 1899 - NA-949 ... ref,,ref,{{cite web,title=Mercury Study Report to Congress Volume V: Health Effects of Mercury and Mercury Compounds ,work=EPA- ... Across Canada, many First Nations have not signed treaties with the [[Canadian Crown]]. Many First Nations are in the process ... The relationship between the Canadian Crown and the First Nations, Inuit, and Métis peoples stretches back to the [[Timeline of ...
Urban forest
Ground-level ozone, or smog, is created by chemical reactions between NOx and volatile organic compounds (VOCs) in the presence ...
Kava
... root is classified into two categories: crown root (or chips) and lateral root. Crown roots are the large-diameter pieces ... In other languages, such as Futunan, compound terms like kavakava atua refer to other species belonging to the genus Piper. The ... Also "chemical solvents used do not extract the same compounds as the natural water extracts in traditional use. The extraction ... One group of scholars say that organic solvents introduce compounds that may affect the liver into the standardized product; ...
Zinc phosphate
This inorganic compound-related article is a stub. You can help Wikipedia by expanding it.. *v ... Zinc phosphate cement is used for cementation of inlays, crowns, bridges, and orthodontic appliances and occasionally as a ... Zinc phosphate (Zn3(PO4)2) is an inorganic chemical compound used as a corrosion resistant coating on metal surfaces either as ...
Sulla
The crown, by tradition, was woven from grasses and other plants taken from the actual battlefield.[33] Sulla then returned to ... rather than the common compound interest which so easily bankrupted the debtors. Also the interest rates were to be agreed ... the men who had hailed him Imperator in the Field and who had awarded him the Grass Crown (Corona Graminea).[44] His soldiers ... He was even awarded the Grass Crown for his command in the latter war. ...
Providence, Rhode Island
... and Rhode Island was the first of the Thirteen Colonies to renounce its allegiance to the British Crown on May 4, 1776.[11] It ... compounded by the fact that Brown University is the city's second-largest employer.[80] ...
Morus (plant)
The mulberry plants allowed to grow tall have a crown height of 1.5 to 1.8 m (5 to 6 ft) from ground level and a stem girth of ... are Influenced by Volatile Compounds from Its Mulberry Host (Morus alba L.)". Insects. 7 (2): 19. doi:10.3390/insects7020019. ... and allowed to grow with a maximum of 8-10 shoots at the crown. The leaves are harvested three or four times a year by a leaf- ...
Common ostrich
They excrete nitrogen as the complex nitrogenous waste compound uric acid, and related derivatives.[64] Uric acid's low ... "King of the Roxy seeks another crown at Ellis". Evansville Courier & Press. Retrieved 17 March 2017 ... Inositol Tetrakisphosphate: The Major Phosphate Compound in the Erythrocytes of the Ostrich (Struthio camelus camelus)". ... Animals must excrete this in the form of nitrogenous compounds.[64] Ostriches are uricotelic. ...
ผู้ใช้:BowRungtip/กระบะทราย -
New York: Crown Publishers, Inc.. *↑ Friedlander Jr., Blaine (November 20, 2003). "CU scientists tout the health punch of cocoa ... Flavanols are also thought to help reduce blood platelet buildup and can balance levels of compounds called eicosanoids, which ... Morton, Frderic and Marcia (1986). Chocolate, An Illustrated History, Crown Publishers, INC. ISBN 0-517-55765-7 ... "Ahhhh! Better than red wine or green tea, cocoa froths with cancer-preventing compounds, Cornell food scientists say". Cornell ...
Egypt (Roman province)
As a key province, but also the 'crown domain' where the emperors succeeded the divine Pharaohs, Egypt was ruled by a uniquely ... To further compound the whole situation, Jews, who themselves were very Hellenized overall, had their own communities, separate ...
Hair coloring
2) Reaction of this diimine with a coupler compound (more detail below). 3) Oxidation of the resulting compound to give the ... There are also newer coloring techniques such as ombré, in which hair is dark on the crown and bit by bit becomes lighter ... The primary intermediates are aromatic para compounds, such as 1,4-diaminobenzene or 4-aminophenol. The coupler compounds ( ... Couplers are chemical compounds that define the color of the hair dye. Shown here are three red couplers (A, B, C), two yellow- ...
Rosé
a b c d J. Bastianich & D. Lynch Vino Italiano pg 121, 280-281, 312-13 Crown Publishing 2005 ISBN 1-4000-9774-6 ... This purer form of charcoal obtained by the dry distillation of carbon compounds (such as wood or peat) has a high ratio of ... The length of maceration (where the must is in contact with the skin) will influence how much of these compounds are extracted ... The stability of these aromas is very dependent on the amount of anthocyanins and other phenolics that protect these compounds ...
Bat
The largest bats are the flying foxes and the giant golden-crowned flying fox, Acerodon jubatus, which can weigh 1.6 kg (3 1⁄2 ... compound the risk of zoonotic transmission.[176] Bats are implicated in the emergence of severe acute respiratory syndrome ( ... The largest bats are a few species of Pteropus megabats and the giant golden-crowned flying fox, (Acerodon jubatus), which can ...
Television licensing in the United Kingdom
Thus, the Crown is not subject to the TV Licensing regime."[82] Prison authorities can assert for Crown immunity to allow ... pensioners and the economically inactive and that the difficulties they have in paying the licence fee are compounded by the ... "Crown Office and Procurator Fiscal Office. Retrieved 21 July 2014.. *^ a b c "TV Licence - Fiscal Fines". COPFS. Retrieved 21 ... Enquiry officers make around four million visits a year to households in the UK and Crown dependencies.[119] Each week an ...
Mixed lithium amide-lithium halide compounds : unusual halide-deficient amido metal anionic crowns - Strathprints
amide-lithium halide compounds , anionic crowns, salt effect, lithium, halides, inverse crowns, Chemistry, Medicine(all). ... Mixed lithium amide-lithium halide compounds : unusual halide-deficient amido metal anionic crowns ... Mixed lithium amide-lithium halide compounds : unusual halide-deficient amido metal anionic crowns. Angewandte Chemie, 50 (36 ... Surprisingly, a novel class of mixed amido-halide macrocyclic complexes, namely metal anionic crowns (MACs) was revealed (see ...
Book Series: Studies in Organic Chemistry
Milwaukee M18 FUEL 18-Volt Lithium-Ion Brushless Cordless 10 in. Dual Bevel Sliding Compound Miter Saw with Stand (Tool-Only)...
Dual Bevel Sliding Compound Miter saw was designed to meet the demanding needs of professional carpenters and remodelers. ... vertical capacity nested crown. *Cam locking miter system with adjustable stainless steel miter detent plate and 11 detent ... Dual Bevel Sliding Compound Miter Saw (Tool-Only). The M18 FUEL 10 in. Dual Bevel Sliding CompoundThe M18 FUEL 10 in. Dual ... Dual Bevel Sliding CompoundThe M18 FUEL 10 in. Dual Bevel Sliding Compound Miter saw was designed to meet the demanding needs ...
Inventory
Patent US5786441 - Polymers, elastomeric compounds and products thereof, derived from novel ... - Google Patents
Other examples include dialkyl ethers of mono and oligo alkylene glycols; "crown" ethers; tertiary amines such as ... 5,496,940 teaches organolithium compounds containing a cyclic amino group. These compounds contain a lithium alkyl moiety that ... Polymers, elastomeric compounds and products thereof, derived from novel amine compounds containing side-chain organolithium ... One preferred method of preparing an initiator compound according to the present invention is to react a cyclic amine compound ...
Hybrid Host-Guest Complexes: Directing the Supramolecular Structure through Secondary Host-Guest Interactions - Streb - 2008 -...
A set of four hybrid host-guest complexes based on the inorganic crown ether analogue [H12W36O120]12− ({W36}) have been ... Compounds 1-4 were structurally characterised by single-crystal X-ray diffraction, elemental analysis, flame atomic absorption ... Tanmay Chatterjee, Monima Sarma, Samar K. Das, Polyoxometalate associated ion-pair solid based on a crown ether inclusion ... directs the solid-state arrangement of compounds 1-4. Guest cations with a hydrophobic phenyl tail result in an antiparallel ...
Shop and Discover over 51,000 Books and Journals - Elsevier
Superwarehouse - Safewalk Workstations Anti-Fatigue Drainage Mat, 28 x 40, Black/Yellow, Crown WS 4E26YE
Ullmann's encyclopedia of industrial chemistry (eBook, 2002) [WorldCat.org]
8. Chlorinated hydrocarbons to cobalt and cobalt compounds --. vol. 9. Coffee to crown ethers --. vol. 10. Cyrogenic technology ... 8. Chlorinated hydrocarbons to cobalt and cobalt compounds -- vol. 9. Coffee to crown ethers -- vol. 10. Cyrogenic technology ... Vanadium and vanadium compounds to wastewater --. vol. 39. Water to zirconium and zirconium compounds --. vol. 40. Index volume ... Vanadium and vanadium compounds to wastewater -- vol. 39. Water to zirconium and zirconium compounds -- vol. 40. Index volume. ...
Ether - Wikipedia
Polyethers are compounds with more than one ether group. The crown ethers are examples of small polyethers. Some toxins ... Related compounds[edit]. Many classes of compounds with C-O-C linkages are not considered ethers: Esters (R-C(=O)-O-R′), ... Crown ethers Cyclic polyethers that are used as phase transfer catalysts. Polyethylene glycol (PEG) A linear polyether, e.g. ... Ethers are a class of organic compounds that contain an ether group-an oxygen atom connected to two alkyl or aryl groups. They ...
publications - sskimb
3. Ketonands, novel ketonic crowns of polyoxo[1n]orthocyclophane constitution. Woo Young Lee, Chang Hee Park, Hyo-Jung Kim and ... Solid-state reactions of iridium(I)-1,5-cyclooctadiene compounds with CO: synthesis of cationic (1,5-cyclooctadiene) ... A novel star-shaped crown ether: spontaneous isomerization of a macrocyclic polyketone to a spirobicyclic polyketal. Woo Young ... Synthesis from diamine of mono- and dinuclear cyclopentadienyliron dicarbonyl carbamoyl compounds. Crystal and molecular ...
36
WikiGenes - Crown-Rump Length
Associations of Crown-Rump Length with chemical compounds. *Among 250 laboratory-born bonnet macaques living in social groups ... Chemical compound and disease context of Crown-Rump Length. *We have previously shown that administration of progesterone ... Disease relevance of Crown-Rump Length. *In the current studies, indices of somatic growth [body weight, crown-rump length (CRL ... Biological context of Crown-Rump Length. *Using indwelling crown-rump length (CRL)-measuring devices, the growth rate of sheep ...
Technical Report: Crown Fabrication Without an Impression.
Macrocyclic compounds analogous to CROWN ETHERS but which lack any OXYGEN atoms. ... Intraoral Imaging at Clinical Crown Lengthening. Crown lengthening surgery is done when a tooth needs to be fixed with a crown ... Crown-rump Length. In utero measurement corresponding to the sitting height (crown to rump) of the fetus. Length is considered ... We report the synthesis of five novel crystals [(4-BrAni+)(DB[18]crown-6)]2[SMo12O402-]·2CH3CN (1), [(4-BrAni+)(B[18]crown-6)]2 ...
Ceanothus integerrimus
Fire adaptations: Deerbrush recovers from fire by establishing from seed and by sprouting from the root crown [12,22,30,37,38, ... Flowers are borne in compound clusters. The fruit is a sticky capsule containing small, obovoid seeds [31,59]. Nitrogen-fixing ... Maximum age attained by roots and root crowns has not been determined, but life span of these organs can be more than 35 years ... Tall shrub, adventitious buds and a sprouting root crown. Ground residual colonizer (on site, initial community) Fire ...
Evaluation of solid-supported room-temperature ionic liquids containing crown ethers as media for metal ion separation and...
Journal of Alloys and Compounds A new class of task-specific ionic liquids (TSILs) based on the covalent attachment of ... The effect observed is shown to vary with the hydrophobicity of the crown ether. Water-soluble crown ethers enhance the ... a result of the exclusion of the crown ether from the resin phase and the formation of cation-crown complexes in the solution ... Effect of crown ethers on the ion-exchange behavior of alkaline earth metals. Toward improved ion-exchange methods for the ...
Compound Feed Plants - Amandus Kahl GmbH & Co. KG
Our compound feed plants consist of numerous individual machines, which are manufactured by KAHL. Our crown expander OEK plays ... Crown Expander Two steps with one machine: The crown expander not only expands a product, but shapes it at the same time. This ... Furthermore, existing expanders can easily be converted to crown expanders. With our crown expander you will work much more ... Compound Feed Plants. From weighing to proportioning, mixing, conditioning, expanding and extruding - AMANDUS KAHL not only ...
Discovery and Canine Preclinical Assessment of a Nontoxic Procaspase-3-Activating Compound | Cancer Research
Crown J, *Stunell H, *et al. . Caspase 3 in breast cancer. Clin Cancer Res 2003;9:738-42. ... After treatment with S-PAC-1, cells were washed to remove compound and cultured in growth medium without compound. Cell death ... Discovery and Canine Preclinical Assessment of a Nontoxic Procaspase-3-Activating Compound. Quinn P. Peterson, Danny C. Hsu, ... S-PAC-1 is the first compound in the PAC-1 class (and the first small-molecule activator of procaspase-3) to be evaluated in a ...
Crown ether - New World Encyclopedia
Crown ethers are heterocyclic chemical compounds that consist of a ring containing several ether groups. The most common crown ... Structures of some common crown ethers. Structures of common crown ethers: 12-crown-4, 15-crown-5, 18-crown-6, dibenzo-18-crown ... Aza-crowns. "Aza-crowns" consist of crown ethers wherein an ether oxygen has been replaced by an amine group. A well-known ... For example, 18-crown-6 has high affinity for the potassium cation, 15-crown-5 for the sodium cation, and 12-crown-4 for the ...
Syagrus romanzoffiana
Leaf: palmately or pinnately dissected or compound, alternate, forming a terminal crown; base sheathing; petiole generally long ... Inflorescence: within crown, < leaves; flowers borne in 3s with 1 pistillate flower flanked by 2 staminate, also staminate ... Leaf: pinnately compound; petiole generally unarmed, bases not persistent on trunk; leaflet margins folded downward. ... compound, or 3, simple, ovaries superior, if 1, generally 3-chambered, styles free or fused. Fruit: generally a drupe, fleshy ...
In most compounds, the solid phase is denser than the liquid phase. Why isn't this true for water? | bartleby
Propose a synthesis for 18-crown-6. If a base is used in your synthesis, does it make a difference whether it i... ... 19 - The compound Pb3O4 (red lead) contains a mixture...Ch. 19 - Tin forms compounds in the +2 and +4 oxidation...Ch. 19 - The ... 19 - Lead forms compounds in the +2 and +4 oxidation...Ch. 19 - Many structures of phosphorus-containing compounds...Ch. 19 - ... 19 - Sulfur forms a wide variety of compounds in which...Ch. 19 - Halogens form a variety of covalent compounds with...Ch. 19 ...
Integrated control of Crown Gall in Mediterranean Countries | Project | FP4 | CORDIS | European Commission
This should lead to the discovery of new agrobacteria and pTi encoding for the biosynthesis of new opine compounds. Persistence ... The crown gall is a plant disease caused by bacteria belonging to the genus Agrobacterium. It is presently the main bacterial ... The long term objective of the project is to decrease the prevalence of crown gall in nurseries to below a reasonable threshold ... identify and monitor the fate of the causative agent and to critically view the methods that could be used to control crown ...
How to Transform a Room with Crown Molding
Create a new look in a room by installing crown molding to bridge the gap between walls and ceiling. Its easier than you think ... Fill nail holes with wood filler or patching compound, then sand. Use caulk or wood filler for small gaps at corners. Touch up ... How to Transform a Room with Crown Molding. Create a new look in a room by installing crown molding to bridge the gap between ... Crown Molding Tips and Tricks. *Keep a consistent scale from floor to ceiling. Although its tempting to install an impressive ...
UC/JEPS: Jepson Manual treatment for PHOENIX dactylifera
Leaves splitting to be palmately or pinnately dissected or compound, alternate, forming a terminal crown, large; base sheathing ... Inflorescence within crown, , leaves. Flower: perianth yellowish; calyx 3-lobed; petals generally free; ovaries 3, free, simple ... Leaves pinnately compound; bases persistent on trunk; leaflets folded longitudinally with margins upward, lower sometimes ...
Bio Fertilizer - China Compound Microbial Fertilizer, Microbial Fertilizer Manufacturers/Suppliers on Made-in-China.com - page 5
This category presents Compound Microbial Fertilizer, Microbial Fertilizer, from China Bio Fertilizer suppliers to global ... Compound Mircrobial Fertilizer Min. Order: 50 Tons Compound Mircrobial Fertilizer Composition: Quantity of effect microbe , ... Organic and Inorganic Compound Fertilizer for Vegetables and Fruits FOB Price: $400 - $410 / Ton Min. Order: 18 Tons ... Organic and Inorganic Compound Fertilizer for Crop and Vegetables FOB Price: $435 - $460 / Ton Min. Order: 18 Tons ...
Macrocyclic and Supramolecular Chemistry: How Izatt-Christensen Award Winners Shaped the Field | Supramolecular Chemistry |...
9 Porosity in Metal-Organic Compounds 200. Alexander Schoedel and Omar M. Yaghi ... 17.5 Development of synthetic cation channels based on crown ethers 367. 17.6 Development of synthetic anion channels based on ... 16.2 Dynamic control of crown ether functions by chemical and physical signals 347 ...
Highly Efficient Catalytic System for Enantioselective Michael Addition of Aldehydes to Nitroalkenes in Water - Zhu - 2007 -...
Predicting the structure and stability of titanium oxide electrides | npj Computational Materials
Computer simulations predict that compounds made of oxygen and titanium atoms form cages that can host electrons in their ... We found that these Ti-rich Ti-O compounds are primarily zero-dimensional electrides with excess electrons confined in the atom ... Ellaboudy, A., Dye, J. L. & Smith, P. B. Cesium 18-crown-6 compounds. A crystalline ceside and a crystalline electride. J. Am. ... Peng, F., Miao, M., Wang, H., Li, Q. & Ma, Y. Predicted lithium-boron compounds under high pressure. J. Am. Chem. Soc. 134, ...
The GPA has a issued a revised standard GPA-2145-16 - Table of Physical Properties of Hydrocarbons and Other Compounds...
CAPPA Seminar: BC Crown Royalties February 21, 2018 @ 8:30 am - 4:00 pm ... The GPA has a issued a revised standard GPA-2145-16 - Table of Physical Properties of Hydrocarbons and Other Compounds ... Table of Physical Properties of Hydrocarbons and Other Compounds effective 1 January 2017. This latest standard now becomes GPA ...
KnowledgePublications - Learning a Little More Every Day
Compound Compensating Pendulum-. Centrifugal Pendulum-. Antique Clock Escapement-. Crown Tooth Escapement-. Double Ratchet- ... Tandem Compound Vertical Engine-. Compound Engines-. Compound Yacht Engine- High-Speed Tandem Compound Engine-. Modern High- ... HIGH-SPEED TANDEM COMPOUND ENGINE-. "Harrisburg model. TANDEM COMPOUND ENGINE-. Phoenix Iron Works model. A direct pipe ... Four-Pole Compound Generator-. Electric Gener-ator Construction-. Consequent-Pole Compound Generator-. Triple-Expansion Engine ...
EtherPinnatelyFactory CompoundMacrocyclicCyclicArgon compoundsComplexesOrganicSingle-crystal X-ray diffracCationsAnionicClasses of compoundsLithiumCoordination compoundsHeterocyclicChemistryQingdao Value Crown IndustryVolatile compounds2017OxygenGallThereofIonsStableChemicalAmmoniumReactiveCarbonSynthesisCobaltDifferentiationConsistPeculiarUnusualElectronsAdaptationStructuresLeavesReagentsDentalPharmacyMetalDibenzo
Ether22
- A set of four hybrid host-guest complexes based on the inorganic crown ether analogue [H 12 W 36 O 120 ] 12− ({W 36 }) have been isolated and characterised. (wiley.com)
- Ethers are a class of organic compounds that contain an ether group -an oxygen atom connected to two alkyl or aryl groups. (wikipedia.org)
- Polyethers are compounds with more than one ether group. (wikipedia.org)
- Supramolecular self-assembly for designing non-centrosymmetric crystals based on Keggin polyoxometallates and crown ether. (bioportfolio.com)
- The transfer of strontium ion from acidic nitrate media into a series of 1-alkyl-3-methylimidazolium-based room-temperature ionic liquids containing dicyclohexano-18-crown-6 is shown to proceed via cation-exchange, in contrast to conventional solvents such as alkan-1-ols, in which extraction of a strontium nitrato-crown ether complex is observed. (osti.gov)
- In chloroform solutions also containing a crown ether (CE), water molecules strongly associate with the IL ions, and there is rapid proton exchange between these bound water molecules and hydronium associated with the CE. (osti.gov)
- Crown ethers are heterocyclic chemical compounds that consist of a ring containing several ether groups. (newworldencyclopedia.org)
- The term "crown" refers to the resemblance between the structure of a crown ether bound to a cation , and a crown sitting on a head. (newworldencyclopedia.org)
- The first number in the name of a crown ether refers to the number of atoms in the cycle, and the second number refers to the number of those atoms that are oxygen . (newworldencyclopedia.org)
- The denticity of the polyether influences the affinity of the crown ether for various cations. (newworldencyclopedia.org)
- In 1967, Charles Pedersen, a chemist working at DuPont, discovered a simple method of synthesizing a crown ether when he was trying to prepare a complexing agent for divalent cations. (newworldencyclopedia.org)
- Aza-crowns" consist of crown ethers wherein an ether oxygen has been replaced by an amine group. (newworldencyclopedia.org)
- Mixed amine-ether crowns are also known. (newworldencyclopedia.org)
- a) Crown ether-steroid amphiphile. (accessscience.com)
- b) Crown ether bolaamphiphile. (accessscience.com)
- 2-Bromoethyl ether (or Bis(2-bromoethyl) ether) is an organobromine compound that is also an ether. (wikipedia.org)
- Each tholin was dissolved in dichloromethane at 2 mg/ml with 2mM 18-Crown-6 ether. (nasa.gov)
- The marked peaks in this figure, with M = 18-Crown-6 ether, correspond to two different series (triangles: NH 2 -(CH 2 ) n -CH 2 CN, where n=0 is the first in the series, and circles: NH 2 -(CH 2 ) n -CH(CN) 2 ,where n=2 is the first in the series). (nasa.gov)
- The results of a similar experiment with the Smith tholin are shown in Figure 4, where several of the crown ether adduct peaks are labeled with an asterisk. (nasa.gov)
- Complexation with 18-Crown-6 ether leads to the identification of primary amine functionality in both Tholin mixtures. (nasa.gov)
- A new family of aza-ether based compounds including linear, multi-branched and aza-crown ethers is provided. (osti.gov)
- When added to non-aqueous battery electrolytes, the new family of aza-ether based compounds acts as neutral receptors to complex the anion moiety of the electrolyte salt thereby increasing the conductivity and the transference number of LI.sup. (osti.gov)
Pinnately6
- ID: Pinnately compound, yellow-green leaves. (udel.edu)
- ID: Pinnately compound, 5 to 9 lanceolate leaflets, pubescent beneath. (udel.edu)
- ID: Pinnately or bipinnately compound leaves with the petiole base swollen around a bud. (udel.edu)
- Pinnately-compound, deciduous leaves are 12-20 in. (wildflower.org)
- The plants are distinguished by crowns of large pinnately compound leaves and by large cones . (britannica.com)
- The crown of clean pinnately compound leaves forms an upright oval. (tamu.edu)
Factory Compound2
- It clears the mid lane pretty well (probably due to the factory compound finish) then gets up and goes and hits hard. (bowling.com)
- The TP1 (Textured Pearl 1) pearl reactive coverstock finished at 500/1000 Siaair and polished with Crown Factory Compound can handle heavier conditions with ease yet still performs on moderate conditions as well. (bowlingball.com)
Macrocyclic4
- Surprisingly, a novel class of mixed amido-halide macrocyclic complexes, namely metal anionic crowns (MACs) was revealed (see picture: Li pink, N yellow, Cl green, Si orange, C black). (strath.ac.uk)
- Macrocyclic compounds analogous to CROWN ETHERS but which lack any OXYGEN atoms. (bioportfolio.com)
- Crown ethers are not the only macrocyclic ligands that have affinity for the potassium cation. (newworldencyclopedia.org)
- In the newly prepared complexes the crown moiety oxygen atoms of the macrocyclic host did not generally interact with metal ions, whereas the two amino groups of the ligand always did. (hindawi.com)
Cyclic3
- Citing earlier work on the dissolution of potassium in 16-crown-4, [2] [3] he realized that the cyclic polyethers represented a new class of complexing agents that were capable of binding alkali metal cations. (newworldencyclopedia.org)
- Two macro-cyclic compounds viz. (omicsonline.org)
- A breakthrough towards this goal occurred when Charles Pedersen in the 1960's prepared cyclic compounds that contained carbon and oxygen atoms in rings of 18 up to 40 atoms. (nobelprize.org)
Argon compounds2
- Argon compounds, the chemical compounds that contain the element argon, are rarely encountered due to the inertness of the argon atom. (wikipedia.org)
- Experimental methods used to study argon compounds have included inert gas matrices, infrared spectroscopy to study stretching and bending movements, microwave spectroscopy and far infrared to study rotation, and also visible and ultraviolet spectroscopy to study different electronic configurations including excimers. (wikipedia.org)
Complexes4
- Crown ethers strongly bind certain cations, forming complexes . (newworldencyclopedia.org)
- Apart from its high affinity for potassium cations, 18-crown-6 can also bind to protonated amines and form very stable complexes in both solution and the gas phase. (newworldencyclopedia.org)
- Those protonated amino groups can bind to the cavity of 18-crown-6 and form stable complexes in the gas phase. (newworldencyclopedia.org)
- The compounds are ionophoric (form stable complexes with cations). (sigmaaldrich.com)
Organic7
- It was shown that parts of the organic guest cation protrude from the central binding cavity and the nature of this protruding organic "tail" directs the solid-state arrangement of compounds 1 - 4 . (wiley.com)
- As for other organic compounds, very common ethers acquired names before rules for nomenclature were formalized. (wikipedia.org)
- The fields of organic synthesis, phase transfer catalysts, and other emerging disciplines benefited from the discovery of crown ethers. (newworldencyclopedia.org)
- The metal cation is the guest and the organic structure is the host in (a) 18-crown-6 complex of potassium cation (K+) and (b) sodium (Na+) complexed by a calix[4]arene. (accessscience.com)
- Other organic compounds have been prepared which transport ions through biological membranes. (nobelprize.org)
- This allows for the selective detection of primary amine functionality in a complex mixture of organic compounds. (nasa.gov)
- The harnessing of natural processes for volatile organic compounds (VOC) and odor control. (ca.gov)
Single-crystal X-ray diffrac2
- Compounds 1 - 4 were structurally characterised by single-crystal X-ray diffraction, elemental analysis, flame atomic absorption spectroscopy, FTIR and bond valence sum calculations. (wiley.com)
- The structures of all coordination compounds were determined via single crystal X-ray diffraction (XRD). (rsc.org)
Cations2
- The resulting cations often form salts that are soluble in nonpolar solvents, and for this reason crown ethers are useful in phase transfer catalysis. (newworldencyclopedia.org)
- The opposite case was observed in solution as the exchange of calcium cations between [18]crown-6 and 1,2-disila[18]crown-6 ( 2 ) was studied via dynamic proton nuclear magnetic resonance (NMR) spectroscopy. (rsc.org)
Anionic2
- The anionic electrons in the electrides are markedly different from the delocalized electrons in metals or entirely localized electrons in the covalent compounds, since they do not bond to any atoms and behave like "quasi" atoms in the lattice. (nature.com)
- In all these compounds, whether anionic, cationic or neutral, the roles of Ar are quite different, yet all of them are weakly bound (if observable, they are only stable in low-temperature matrices) and Ar has a positive partial charge, i.e. donates electrons during the formation of the compounds. (nature.com)
Classes of compounds1
- The text covers a broad range of reagents that make it possible to determine the enantiomeric purity and assign the absolute configuration of many classes of compounds. (researchandmarkets.com)
Lithium1
- For example, 18-crown-6 has high affinity for the potassium cation, 15-crown-5 for the sodium cation, and 12-crown-4 for the lithium cation. (newworldencyclopedia.org)
Coordination compounds1
- The mechanism of antifungal action of these coordination compounds is probably connected to an inhibition of lanosterol- 14- α -demethylase, a metallo-enzyme playing a key role in sterol biosynthesis in fungi, bacteria and eukariotes. (hindawi.com)
Heterocyclic1
- Chemistry of Heterocyclic Compounds. (wikipedia.org)
Chemistry3
- [4] Pedersen shared the 1987 Nobel Prize in Chemistry for the discovery of the synthetic routes to and binding properties of crown ethers. (newworldencyclopedia.org)
- Therefore, while the chemistry of Xe has developed quickly, over the last decades many scientists also tried to stabilise compounds of Argon. (nature.com)
- Providing new physical stimuli might be a promising avenue to enrich the chemistry of argon beyond these few metastable bound compounds. (nature.com)
Qingdao Value Crown Industry1
- Qingdao Value Crown Industry & Trading Co. (made-in-china.com)
Volatile compounds1
- 5 , 8 In one report, 45 volatile compounds were isolated from whole green walnuts. (drugs.com)
20175
- The Gas Producers Association, now known as the GPA Midstream Association ( www.gpaglobal.org ), has a issued a revised standard GPA-2145-16 - Table of Physical Properties of Hydrocarbons and Other Compounds effective 1 January 2017. (cappa.org)
- Here you can see the latest Crown Bioscience Announcing 2017 Board Directors Election Results articles that have been published worldwide. (bioportfolio.com)
- We have published hundreds of Crown Bioscience Announcing 2017 Board Directors Election Results news stories on BioPortfolio along with dozens of Crown Bioscience Announcing 2017 Board Directors Election Results Clinical Trials and PubMed Articles about Crown Bioscience Announcing 2017 Board Directors Election Results for you to read. (bioportfolio.com)
- In addition to the medical data, news and clinical trials, BioPortfolio also has a large collection of Crown Bioscience Announcing 2017 Board Directors Election Results Companies in our database. (bioportfolio.com)
- You can also find out about relevant Crown Bioscience Announcing 2017 Board Directors Election Results Drugs and Medications on this site too. (bioportfolio.com)
Oxygen1
- Hydrogen-bonds are formed between the three hydrogen atoms of protonated amines and three oxygen atoms of 18-crown-6. (newworldencyclopedia.org)
Gall5
- The crown gall is a plant disease caused by bacteria belonging to the genus Agrobacterium. (europa.eu)
- The long term objective of the project is to decrease the prevalence of crown gall in nurseries to below a reasonable threshold providing substantial incomes to growers. (europa.eu)
- As a specific objective, the scientists plan to establish a common set of standardized procedures to detect, identify and monitor the fate of the causative agent and to critically view the methods that could be used to control crown gall disease. (europa.eu)
- Induction is mediated by novel compounds, called opines, that are secreted by crown gall tumours. (nih.gov)
- Transfer is induced by the conjugal opines, a group of unique carbon compounds synthesized in crown gall tumors. (pnas.org)
Thereof1
- 8. The compound of claim 1, which is selected from the group consisting of: 2S)-1-(3-aminopropyl)-2-mercaptocyclopentanecarboxylic acid, (1R,2S)-2-acetylthio-1-(3-aminopropyl)-cyclopentanecarboxylic acid, an optical isomer thereof, and apharmaceutically acceptable acid addition salt thereof. (patentgenius.com)
Ions3
- The high affinity of 18-crown-6 for potassium ions contributes toward its toxicity. (newworldencyclopedia.org)
- However, compounds of argon have been detected in inert gas matrix isolation, cold gases, and plasmas, and molecular ions containing argon have been made and also detected in space. (wikipedia.org)
- Other compounds recognize ions, such as sodium and potassium, and transport them in and out of the living cell. (nobelprize.org)
Stable4
- One solid interstitial compound of argon, Ar1C60 is stable at room temperature. (wikipedia.org)
- Its effects include stimulating elements thought to be "inactive" to form unexpectedly stable compounds with unusual chemical and physical properties. (nature.com)
- Two unexpected Li m Ar n compounds (LiAr and Li 3 Ar) are predicted to be stable above 112 GPa and 119 GPa, respectively. (nature.com)
- Therefore, Ar is very reluctant to form stable compounds under ambient conditions. (nature.com)
Chemical1
- Various chemical compounds. (scribd.com)
Ammonium1
- Ammonium compounds to antioxidants -- vol. 4. (worldcat.org)
Reactive2
- They have tested the amine reactive tag illustrated in Figure 5 using a mixture of the neurotransmitters dopamine, serotonin, and norepinephrine, which are all important biological compounds with primary amine functionality. (nasa.gov)
- The successful 18-Crown-6 adduct formation described earlier is being used as a starting point for reactive DESI , using neurotransmitters as test compounds. (nasa.gov)
Carbon2
- Several classes of in vivo carbon monoxide-releasing compounds are useful for the treatment and/or prevention of diseases, such as chronic inflammatory, e.g., rheumatoid arthritis, and of diseases with a strong inflammatory component, such as atherosclerosis, stroke, coronary disease, and Alzheimers disease. (freepatentsonline.com)
- The in vivo carbon monoxide-releasing compounds can be attached to known drug vectors and/or known anti-inflammatory drugs, such as aspirin. (freepatentsonline.com)
Synthesis1
- He proceeded to report systematic studies of the synthesis and binding properties of crown ethers in a seminal series of papers. (newworldencyclopedia.org)
Cobalt2
- Chlorinated hydrocarbons to cobalt and cobalt compounds -- vol. 9. (worldcat.org)
- This report describes the fabrication of a cobalt-chromium crown without an impression using a digitized and scanned temporary crown to provide excellent integration. (bioportfolio.com)
Differentiation3
- Differentiation of Chiral Compounds Using NMR Spectroscopy. (researchandmarkets.com)
- Differentiation of Chiral Compounds Using NMR Spectroscopy offers a thoroughly revised second edition to the essential volume that puts the focus on the chiral systems that are commercially available and have been widely vetted for use in NMR spectroscopy. (researchandmarkets.com)
- Differentiation of Chiral Compounds Using NMR Spectroscopy is a comprehensive guide designed for investigators planning to use NMR spectroscopy to determine enantiomeric purity or assign the absolute configuration of a compound. (researchandmarkets.com)
Consist1
- Our compound feed plants consist of numerous individual machines, which are manufactured by KAHL. (akahl.de)
Peculiar1
- He showed that these compounds had many peculiar and unexpected properties. (nobelprize.org)
Unusual1
- A case of an unusual dilacerated central incisor with a 90° crown-root angulation and palatally displaced crown is presented herein. (bioportfolio.com)
Electrons2
- We found that these Ti-rich Ti-O compounds are primarily zero-dimensional electrides with excess electrons confined in the atom-sized lattice voids or between the cationic layers playing the role as anions. (nature.com)
- A detailed analysis of the electronic structure of LiAr and Li 3 Ar shows that Ar in these compounds attracts electrons and thus behaves as an oxidizing agent. (nature.com)
Adaptation1
- Narrow crown phenotypes are likely the result of adaptation to heavy snow loads combined with high wind speeds. (mdpi.com)
Structures2
- Structures of common crown ethers: 12-crown-4, 15-crown-5, 18-crown-6, dibenzo-18-crown-6, and diaza-18-crown-6. (newworldencyclopedia.org)
- Here, using an unbiased structure search method based on CALYPSO methodology and density functional total energy calculations, the phase stabilities and crystal structures of Li−Ar compounds are systematically investigated at high pressure up to 300 GPa. (nature.com)
Leaves4
- ID: Bipinnately compound leaves with ovate, dark green leaflets. (udel.edu)
- Assets: Broadly rounded crown with compound leaves that cast a light shade. (udel.edu)
- Walnut tree leaves are compound and between 15 and 30 cm long. (drugs.com)
- Furthermore, plants from Near-NF showed a lower severity index of black leaf streak disease (BLSD) and higher levels of phenolic compounds in leaves compared to plants from Distant-NF. (frontiersin.org)
Reagents2
- Utilizing common reagents such as hydrogen chloride and hydrogen bromide, he succeeded in characterizing the differences between the structure of these compounds. (nobelprize.org)
- Comprehensive in scope, the text describes the chiral NMR differentiating agents as derivatizing agents, solvating agents, metal-based reagents and liquid crystals and gels, and explains the range and types of compounds for which they can be used for analysis. (researchandmarkets.com)
Dental3
- Digital makeover (before-and-after) examples showing how repairs can be made using dental crowns. (animated-teeth.com)
- The "after" picture for this makeover case (the "normal" picture above) shows how a dentist might rebuild this person's teeth by way of placing dental crowns. (animated-teeth.com)
- b) Dental crowns probably make the best choice. (animated-teeth.com)
Pharmacy4
- For Makers Compounding Pharmacy & Hallmark, your physical size, health symptoms, and pain tolerance are unique to your condition. (makerscompounding.com)
- From fine-tuned dosages to convenient combined preparations, you can count on our compound pharmacy for dedicated and courteous service. (makerscompounding.com)
- With an expected 400 total attendees in 2014, CCH brings together the top-level compounding pharmacists and technicians from across the country with the same goal - to protect pharmacy compounding. (iacprx.org)
- Don't miss the only pharmacy compounding event that takes our issues directly to Washington, D.C.'s doorstep. (iacprx.org)
Metal2
- 18-Crown-6 can solubilize metal salts, particularly potassium salts, in nonpolar and dipolar aprotic solvents. (sigmaaldrich.com)
- Aluminum occurs naturally only in compounds, never as a pure metal. (encyclopedia.com)
Dibenzo1
- Pedersen particularly popularized the dibenzo crown ethers. (newworldencyclopedia.org)