نتایج جستجو برای: rh خون
تعداد نتایج: 39802 فیلتر نتایج به سال:
To remediate indoor fungal growth, understanding the moisture relations of common indoor fungi is crucial. Indoor moisture conditions are commonly quantified by the relative humidity (RH). RH is a major determinant of the availability of water in porous indoor surfaces that fungi grow on. The influence of steady-state RH on growth is well understood. Typically, however, the indoor RH constantly...
زمینه و هدف: ویتیلیگو یک اختلال دپیگمانته اکتسابی است که شیوع آن در جامعه %2-1 می باشد. با وجود نظریه ها و تئوریهای متفاوت، علت اصلی آن هنوز ناشناخته است. فرایندهای ژنتیکی و گروههای خونی در اتیولوژی ویتیلیگو مطرح شده اند. مطالعه حاضر با هدف تعیین ارتباط بین ویتیلیگو با گروههای خونی a، b، o و rh انجام شد.روش تحقیق: در این مطالعه مورد- شاهدی، فراوانی گروههای خونی و rh در 100 بیمار مبتلا به ویتیلی...
564 patients with subarachnoid hemorrhage caused by ruptured cerebral aneurysm were studied statistically with a correlation between retinal hemorrhage (RH) and outcome. Of these, 142 pa tients (or 25%) exhibited RH. No correlation was demonstrated between the frequency of RH and age or sex. Unilateral RH was seen in 34 patients with middle cerebral artery or internal carotid artery aneu...
Reagents for recognition and efficient cleavage of mismatched DNA without photoactivation were designed. They contain a combination of a mismatch-directing metalloinsertor, [Rh(bpy)2(chrysi)]3+ (bpy=2,2'-bipyridyl, chrysi=5,6-chrysenequinone diimine), and an oxidative cleavage functionality, [Cu(phen)2]+ (Cu). Both unconjugated (Rh+Cu) and conjugated (Rh-Cu) frameworks of the Rh insertor and Cu...
The change in electronic structure of extremely small RhxCuy alloy nanoparticles (NPs) with composition variation was investigated by core-level (CL) and valence-band (VB) hard X-ray photoelectron spectroscopy. A combination of CL and VB spectra analyses confirmed that intermetallic charge transfer occurs between Rh and Cu. This is an important compensation mechanism that helps to explain the r...
Sorption balances are instruments in which samples are weighed as they are exposed to a programmed relative humidity (RH). Such instruments are used to measure sorption isotherms and to study solid-vapour interaction. There are different methods to validate the performance of the RH generation in such instruments by charging them with saturated salt solutions and ramping/stepping the RH past th...
Rh-based heterogeneous catalysts generally have limited selectivity relative to their homogeneous counterparts in hydroformylation reactions despite of the convenience of catalyst separation in heterogeneous catalysis. Here, we develop CoO-supported Rh single-atom catalysts (Rh/CoO) with remarkable activity and selectivity towards propene hydroformylation. By increasing Rh mass loading, isolate...
The activity of a vapor-phase disinfectant is usually expressed in terms of the atmospheric relative humidity (RH). This study shows that, in beta-propiolactone (BPL) vapor disinfection, the important factor is really the moisture content and location of water in the cell, and not necessarily the atmospheric RH. Previous studies revealed that only about 50% of the bacterial spores equilibrated ...
Rh is one of the most important noble metals for industrial applications. A major fraction of Rh is used as a catalyst for emission control in automotive catalytic converters because of its unparalleled activity toward NOx reduction. However, Rh is a rare and extremely expensive element; thus, the development of Rh alternative composed of abundant elements is desirable. Pd and Ru are located at...
The layer-averaged magnetic moments of Co and Rh have been measured in sputter deposited Co/Rh ~001! multilayer thin films using the x-ray magnetic circular dichroism. The Rh moments were measured at both the L and M absorption edges, where we find that the Rh moment decreases as a function of increasing Rh layer thickness (tRh). The decline of the layer-averaged Rh moment is well described in ...
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