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Beta-lactamases are enzymes () produced by some bacteria and are responsible for their resistance to beta-lactam antibiotics like penicillins, cephamycins, and carbapenems ( ertapenem ) ( Carbapenems are relatively resistant to beta-lactamase ).
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Beta-lactamases and are
Beta-lactamases produced by Gram-negative organisms are usually secreted.
are and enzymes
Experiments are in progress to develop ultraviolet spectrophotometric techniques for assaying these enzymes and for studying their sensitivity to metal ions.
The chief factors responsible for the spoilage of fresh foodstuffs are ( 1 ) microorganisms such as bacteria, molds, and yeasts, ( 2 ) enzymes, ( 3 ) insects, ( 4 ) sprouting, and ( 5 ) chemical reactions.
The active ingredients are usually alcohol, chlorhexidine gluconate ,, cetylpyridinium chloride hexetidine, benzoic acid ( acts as a buffer ), methyl salicylate, benzalkonium chloride, methylparaben, hydrogen peroxide, domiphen bromide and sometimes fluoride, enzymes, and calcium.
** Congenital adrenal hyperplasias are genetic defects of enzymes involved in cortisol production and can affect sex characteristics of affected patients.
Class I AC's are large cytosolic enzymes (~ 100 kDa ) with a large regulatory domain (~ 50 kDa ) that indirectly senses glucose levels.
Several crystal structures are known for AC-II enzymes.
The enzymes of these microbes are denatured ( changed in shape so they no longer function ) by the acid.
Although oxidation reactions are crucial for life, they can also be damaging ; plants and animals maintain complex systems of multiple types of antioxidants, such as glutathione, vitamin C, and vitamin E as well as enzymes such as catalase, superoxide dismutase and various peroxidases.
Selenium and zinc are commonly referred to as antioxidant nutrients, but these chemical elements have no antioxidant action themselves and are instead required for the activity of some antioxidant enzymes, as is discussed below.
Probably the most important proteins, however, are the enzymes.
Upon arrival, active enzymes, such as tartrate resistant acid phosphatase, are secreted against the mineral substrate.
Transport processes are those by which molecules are moved within the organism, such as: membranes transporting material across themselves and enzymes moving electrons.
As a normal human digestive tract does not contain any anti-oligosaccharide enzymes, consumed oligosaccharides are typically digested by bacteria in the large intestine.
Using pharmacogenomics, pharmaceutical companies can create drugs based on the proteins, enzymes and RNA molecules that are associated with specific genes and diseases.
: The 2br enzymes, with the letter " r " denoting reduced binding to clavulanic acid and sulbactam, are also called inhibitor-resistant TEM-derivative enzymes ; nevertheless, they are commonly still susceptible to tazobactam, except where an amino acid replacement exists at position met69.
: Subgroup 2d enzymes inactivate cloxacillin more than benzylpenicillin, with some activity against carbenicillin ; these enzymes are poorly inhibited by clavulanic acid, and some of them are ESBLs
are and ()
Likewise, tan (), tan (), tan (), tan () all satisfy the irreducible polynomial, and so are conjugate algebraic integers.
The ' far-away light ' () is a reference to St Elmo's Fire, an electrical discharge supposed by ancient Greek mariners to be an epiphany of the Dioscuri, but the meaning of the line was obscured by gaps in the papyrus until reconstructed by a modern scholar — such reconstructions are typical of the extant poetry ( see Scholars, fragments and sources below ).
* Partial devoicing of sonorants – In English sonorants () are partially devoiced when they follow a voiceless sound within the same syllable.
Complex systems of predicting fate and destiny based on one's birthday, birth season, and birth hours, such as ziping and Zi Wei Dou Shu () are still used regularly in modern day Chinese astrology.
Many letters look similar but are distinguished from one another by dots () above or below their central part, called.
* The () or () order shown in the table below, used where lists of names and words are sorted, as in phonebooks, classroom lists, and dictionaries, groups letters by similarity of shape.
Aleut people () are the indigenous people of the Aleutian Islands of Alaska, United States and Kamchatka Krai, Russia.
As defined by Arrhenius, acid – base reactions are characterized by Arrhenius acids, which dissociate in aqueous solution to form hydrogen ions (), and Arrhenius bases, which form hydroxide () ions.
Free-swimming () organisms are relatively rare, with the majority of organisms being bottom dwelling ( benthic ) — either moving about ( vagrant ) or permanently attached to the sea floor ( sessile ).
The two Books of Samuel () are part of a series of historical books ( Joshua, Judges, Samuel and Kings ) that make up a theological history of the Israelites and affirm and explain God's law for Israel under the guidance of the prophets.
Some biblical scholars believe Jonah's prayer () to be a later addition to the story ( see source criticism for more information on how such conclusions are drawn ).
Bean () is a common name for large plant seeds of several genera of the family Fabaceae ( alternately Leguminosae ) some of which are used for human food or animal feed.
The other organisations that maintain the SI system, also known by their French initialisms are the General Conference on Weights and Measures () ( CGPM ) and the International Committee for Weights and Measures () ( CIPM ).
The Banda Islands () are a volcanic group of ten small volcanic islands in the Banda Sea, about south of Seram Island and about east of Java, and are part of the Indonesian province of Maluku.
The chalcogens () are the chemical elements in group 16 ( old-style: VIB or VIA ) of the periodic table.
* User-defined () and compound types are possible.
Carboxylic acids () are organic acids characterized by the presence of at least one carboxyl group.
Chloroplasts () are organelles found in plant cells and other eukaryotic organisms that conduct photosynthesis.
At present () the museum is closed for refurbishment but there is a temporary museum, on the site, where all their ' star finds ' are displayed.
are and produced
Again, the sufferings and disasters produced by any transgression against the commandment not to love are almost invariably associated in one way or another with childhood, with the figure of a child.
Notable in this category are the Jupiter and Thor intermediate range ballistic missiles, which have been successfully developed, produced, and deployed, but the relative importance of which has diminished with the increasing availability of the Atlas intercontinental ballistic missile.
Finished signs are produced by sliding the separate letter panels into channels of 0.025-in. aluminum, which may be mounted to various surfaces.
Simultaneously, males or drones are produced, mostly from the unfertilized eggs of workers, although a few may be produced by the queen.
Other theories of origin are compatible with the formulaic theory: Beowulf may contain a design for terror, and The Iliad may have a vast hysteron-proteron pattern answering to a ceramic pattern produced during the Geometric Period in pottery.
-- The results of microanalysis of tektites ( natural glasses of unknown origin ) for gallium and germanium have shown that these glasses are probably produced from terrestrial ( or less likely from lunar ) matter by impact of a celestial body.
In one-shot, the isocyanate, polyester or polyether resin, catalyst, and other additives are mixed directly and a foam is produced immediately.
Sizable amounts of soybean, coconut, and palm kernel oil -- seed oils that are produced primarily for food purposes -- also are used to make soaps, detergents, and paint resins.
But Mr. Bragg is a remarkably gifted conductor, and the results he has produced with his boys are generally superior.
In the majority of species of caecilians, the young are produced by vivipary.
The Brahmic family of alphabets used in India use a unique order based on phonology: The letters are arranged according to how and where they are produced in the mouth.
Almost all species have a tight cluster of leaves ( a rosette ), either at the base of the plant or at the end of a more-or-less woody stem ; the leaves are less often produced along the stem.
Only in a few cases are leaves produced along the length of the stem.
New catalog entries of the remaining 15, 000 American feature films produced between 1974 and present day are incorporated every year.
Six astatine isotopes, with mass numbers of 214 to 219, are present in nature as the products of various decay routes of heavier elements, but neither the most stable isotope of astatine ( with mass number 210 ) nor astatine-211 ( which is used in medicine ) is produced naturally.
Decoration is characterized by fine hatching, and contrasting colors are produced by the use of mineral-based paint on a chalky background.
The flowers are white to pale pink, diameter with five petals, produced singly or in pairs and appearing before the leaves in early spring.
He is reputed to have observed that when the lengths of vibrating strings are expressible as ratios of integers ( e. g. 2 to 3, 3 to 4 ), the tones produced will be harmonious.
Galileo wrote " Waves are produced by the vibrations of a sonorous body, which spread through the air, bringing to the tympanum of the ear a stimulus which the mind interprets as sound ", a remarkable statement that points to the beginnings of physiological and psychological acoustics.
Since in oral languages the elements of sound are for the most part produced linearly in time ( that is, in a word like cat the a sound comes after the c sound, and the t sound comes after that ), they can generally be easily written in a linear ( one-dimensional ) writing system such as an alphabet.
There are only a few aspects which are produced simultaneously, such as tone in some languages, or vowel and consonant harmony, and which are therefore not straightforward to write with an alphabet.
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