نتایج جستجو برای: hm po4 xn
تعداد نتایج: 13715 فیلتر نتایج به سال:
Abstract. In this paper we present a Commission on New Minerals, Nomenclature and Classification of the International Mineralogical Association (IMA-CNMNC)-accepted scheme for classification nomenclature triphylite group minerals. The general formula those minerals is M1M2TO4, where M1 M2 refer to cations in an octahedral coordination: = □, Na, Li; Mn2+, Fe2+, Mg, Fe3+, Mn3+, T tetrahedrally co...
Naively, given a field k and some n > 0, an affine algebraic set in kn is the zero set of some finite collection of polynomial equations with n variables and coefficients in k. A morphism between two affine algebraic sets is a map defined by a tuple of polynomials. Armed with Hilbert’s Nullstellensatz, it isn’t too hard to make this precise in the case that k is algebraically closed, so we begi...
Let {Xn ,n=>1} be a strictly stationary sequence of negatively associated random variables, with common distribution function F. In this paper, we consider the estimation of the two-dimensional distribution function of (X1, Xk+1) for fixed $K /in N$ based on kernel type estimators. We introduce asymptotic normality and properties and moments. From these we derive the optimal bandwidth...
An ionophore-doped sensing membrane phosphate (PO4) microsensor based on bis(dibromophenylstannyl)methane (Bis microsensor) is described. The Bis microsensor showed a Nernstian response. The response of the Bis microsensor was log-linear down to a monohydrogen phosphate ion (HPO42-) concentration of 0.5 μM (corresponding to 1.0 μM of orthophosphate at pH 7.2), whereas the detection limit of PO4...
Transmembrane domain VI of muscarinic acetylcholine receptors plays an important role in ligand binding and receptor function. A human M(1) (HM(1)) mutant receptor, HM(1)(S388Y, T389P), displayed significantly enhanced agonist potency, binding affinity, and G protein coupling. The mutations are located at the top of transmembrane domain VI and about two helical turns above Tyr381 and Asn382, wh...
AIM Benefits of human breast milk (HM) in avoiding rapid infancy weight gain and later obesity could relate to its nutrient content. We tested the hypothesis that differential HM total calorie content (TCC) or macronutrient contents may be associated with infancy growth. METHODS HM hindmilk samples were collected at ages 4-8 weeks from 614 mothers participating in a representative birth cohor...
Familial hemiplegic migraine (HM) is an autosomal dominant migraine with aura. In 20% of HM families, HM is associated with a mild permanent cerebellar ataxia (PCA). The CACNA1A gene encoding the alpha1A subunit of P/Q-type voltage-gated calcium channels is involved in 50% of unselected HM families and in all families with HM/PCA. Four CACNA1A missense mutations have been identified in HM: two ...
The Na superionic conductor (NASICON) Na3V2(PO4)3 is an important positive electrode material for Na-ion batteries. Here, we investigate the mechanisms of phase transition in NaxV2(PO4)3 (1 ? x 4) upon nonequilibrium battery cycling. Unlike widely believed two-phase reaction a Na3V2(PO4)3–Na1V2(PO4)3 system, determine, first time, structure recently reported intermediate Na2V2(PO4)3 using opera...
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