The qa-3 gene, one of the four genes in the qa gene cluster, encodes quinate (shikimate) dehydrogenase (quinate: NAD oxidoreductase, ER 1.1.1.24), the first enzyme in the inducible quinic acid catabolic pathway in Neurospora crassa. Genetic analyses have localized 26 qa-3 mutants at 11 sites on the aq-3 genetic map on the basis of prototroph frequencies. Certain mutants, e.g., 336-3-10 and 336-...

Vascular access malfunction, usually presenting with an inadequate access flow (Qa), is the leading cause of morbidity and hospitalization in hemodialysis (HD) patients. Many methods of thermal therapy have been tried for improving Qa but with limited effects. This randomized trial was designed to evaluate the effect of far-infrared (FIR) therapy on access flow and patency of the native arterio...

The investigation presented in this paper is a novel method in question answering (QA) that enables a QA system to gain performance through reuse of information in the answer to one question to answer another related question. Our analysis shows that a pair of question in a general open domain QA can have embedding relation through their mentions of noun phrase expressions. We present methods f...

background: health system pharmacies, like other health care professional, practice under a number of mandated stan­dards. basic concepts of quality assurance (qa) standards should be applied to hospital pharmacy practice. the survey re­ported here is to assess qa system implementation and its standard indicators observation in tehran university of medical sci­ences (tums) hospitals' pharmacies...

Objective(s): Quinolinic acid (QA)-mediated excitotoxicity has been widely used as a model for studying neurodegenerative disorders. Recent studies suggested that saffron (Crocus sativus) or its active metabolite, i.e. safranal, exerts pharmacological actions on central nervous system including anxiolytic, anticonvulsant, and neuroprotective properties. The present study aimed to investigate th...

Qa := ∫ Qa ⊗ P (xj|b,b ′,x, a,y) dxj [Symbolic Substitution] For all bi in Qa Qa := [ Qa ⊗ P (bi|b,x, a,y) ] |b′i=1 ⊕ [ Qa ⊗ P (bi|b,x, a,y) ] |b′i=0 [Case ⊕] Compute final Q-Value (discount and add reward): Qa := R(b,x, a,y)⊕ (γ ⊗Qa) Note that ∫ f (xj)⊗δ[xj−h(z)]dxj = f (xj){xj/h(z)}where the latter operation indicates that any occurrence of xj in f (x ′ j) is symbolically substituted with the...

Question answering (QA) has been the subject of a resurgence over the past years. The said resurgence has led to a multitude of question answering (QA) systems being developed both by companies and research facilities. While a few components of QA systems get reused across implementations, most systems do not leverage the full potential of component reuse. Hence, the development of QA systems i...

Of all the biochemically defined mouse MHC class I molecules, the Qa-1 antigens are the only ones for which a gene has not been identified. Recent evidence has suggested that Qa-1 antigens are functional class I molecules and can function as restriction elements for gamma/delta T cells. We have examined the relationship between Qa-1 and the product of gene 37, a presumed novel class I antigen e...

eveloping software systems involves a series of activities where there are many opportunities to make errors. Such errors may occur at an early stage of the development process where user requirements are incorrectly or incompletely specified, and also in subsequent stages when design and programming faults are introduced. Thus, software development should always be accompanied by quality assur...

The murine 17th chromosome contains two regions of particular interest to biologists , the Tit complex and the major histocompatibility complex (MHC). 1 The T/t complex controls a number of loci that have important functions in embryonic development (1); the MHC encodes gene products that are involved in cellular interactions critical for immune function (2). A third region, Tla, located telome...