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Monovalent Botulinum Antitoxin E
Monovalence or Monovalent may refer to: *Monovalent ion, an atom, ion, or chemical group with a valency of one, which thus can form one covalent bond * Monovalent vaccine, a vaccine directed at only one pathogen * Monovalent antibody, an antibody with affinity for one epitope, antigen, or strain of microorganism * Monovalent verb or Intransitive verb, a verb that takes no direct object and has only one argument See also *Valence (other) Valence or valency may refer to: Science *Valence (chemistry), a measure of an element's combining power with other atoms *Valence electron, electrons in the outer shell of an atom's energy levels *Valence quarks, those quarks within a hadron th ... * Polyvalence (other) {{disambig ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monovalent Ion
In chemistry, the valence (US spelling) or valency (British spelling) of an atom is a measure of its combining capacity with other atoms when it forms chemical compounds or molecules. Valence is generally understood to be the number of chemical bonds that each atom of a given chemical element typically forms. Double bonds are considered to be two bonds, triple bonds to be three, quadruple bonds to be four, quintuple bonds to be five and sextuple bonds to be six. In most compounds, the valence of hydrogen is 1, of oxygen is 2, of nitrogen is 3, and of carbon is 4. Valence is not to be confused with the related concepts of the coordination number, the oxidation state, or the number of valence electrons for a given atom. Description The valence is the combining capacity of an atom of a given element, determined by the number of hydrogen atoms that it combines with. In methane, carbon has a valence of 4; in ammonia, nitrogen has a valence of 3; in water, oxygen has a valence of 2; ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monovalent Vaccine
A vaccine is a biological Dosage form, preparation that provides active acquired immunity to a particular infectious disease, infectious or cancer, malignant disease. The safety and effectiveness of vaccines has been widely studied and verified. A vaccine typically contains an agent that resembles a disease-causing microorganism and is often made from weakened or killed forms of the microbe, its toxins, or one of its surface proteins. The agent stimulates the body's immune system to recognize the agent as a threat, destroy it, and recognize further and destroy any of the microorganisms associated with that agent that it may encounter in the future. Vaccines can be prophylaxis, prophylactic (to prevent or alleviate the effects of a future infection by a natural or "wild" pathogen), or therapeutic vaccines, therapeutic (to fight a disease that has already occurred, such as cancer vaccine, cancer). Some vaccines offer full sterilizing immunity, in which infection is prevented. T ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Monovalent Antibody
An antibody (Ab) or immunoglobulin (Ig) is a large, Y-shaped protein belonging to the immunoglobulin superfamily which is used by the immune system to identify and neutralize antigens such as bacteria and viruses, including those that cause disease. Each individual antibody recognizes one or more specific antigens, and antigens of virtually any size and chemical composition can be recognized. Antigen literally means "antibody generator", as it is the presence of an antigen that drives the formation of an antigen-specific antibody. Each of the branching chains comprising the "Y" of an antibody contains a paratope that specifically binds to one particular epitope on an antigen, allowing the two molecules to bind together with precision. Using this mechanism, antibodies can effectively "tag" the antigen (or a microbe or an infected cell bearing such an antigen) for attack by cells of the immune system, or can neutralize it directly (for example, by blocking a part of a virus that i ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Intransitive Verb
In grammar, an intransitive verb is a verb, aside from an auxiliary verb, whose context does not entail a transitive object. That lack of an object distinguishes intransitive verbs from transitive verbs, which entail one or more objects. Additionally, intransitive verbs are typically considered within a class apart from modal verbs and defective verbs. Examples In the following sentences, verbs are used without a direct object: *"Rivers flow." *"I sneezed." *"My dog ran." *"Water evaporates when it's hot." *"You've grown since I last saw you!" *"I wonder how long it will be until I see you again after I move." The following sentences contain transitive verbs (they entail one or more objects): *"We watched ''a movie'' last night." *"She's making ''promises''." *"When I said that, my sister smacked ''me''." *"Santa gave ''me'' ''a present''." *"He continuously clicked ''his pen'' and it was incredibly annoying to me." Some verbs, called ambitransitive verbs, may entail o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Valence (other)
Valence or valency may refer to: Science *Valence (chemistry), a measure of an element's combining power with other atoms *Valence electron, electrons in the outer shell of an atom's energy levels *Valence quarks, those quarks within a hadron that determine the hadron's quantum numbers *Degree (graph theory), also called the valency of a vertex in graph theory *Valency (linguistics), aspect of verbs relative to other parts of speech *Valence (psychology) or hedonic tone, the (emotional) value associated with an event, object or situation Places France * Valence, Charente, a commune in the Charente department * Valence, Drôme, Drôme, a commune and prefecture of the Drôme department ** University of Valence, a medieval university * Valence, Tarn-et-Garonne, a commune in the Tarn-et-Garonne department * Canton of Valence, Tarn-et-Garonne department * Arrondissement of Valence, Drôme department * Roman Catholic Diocese of Valence * Valence-d'Albigeois, in the Tarn department ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
