نتایج جستجو برای: 605 rh and 168 h
تعداد نتایج: 16883128 فیلتر نتایج به سال:
The use of mulching in agriculture suppresses the weeds around crop plants, enhances nutrients status soil, controls soil structure and temperature, reduces water evaporation. Excessive low-density polyethylene mulches is contributing to accumulation high amounts plastic wastes, an environmental problem for agricultural ecosystems. Fragments from such wastes can be found soils, resources, organ...
مقدمه: تظاهرات بالینی، پیامدهای مادری و جنینی و عود بیماری در پره اکلامپسی خفیف و شدید متفاوت است و این منجر به ایجاد این دیدگاه شده که ممکن است پاتوژنز و عوامل خطر انواع پره اکلامپسی متفاوت باشد. مطالعه حاضر با هدف مقایسه عوامل خطر پره اکلامپسی خفیف و شدید انجام شد. روشکار: این مطالعه مقطعی در سال 1391 بر روی 498 زن باردار (330 زن باردار سالم و 168 زن باردار مبتلا به پره اکلامپسی) انجام شد....
A well-defined amphiphilic core-shell polymer functionalized with bis(p-methoxyphenylphosphino)phenylphosphine (BMOPPP) in the nanogel (NG) core has been obtained by a convergent RAFT polymerization in emulsion. This BMOPPP@NG and the previously-reported TPP@NG (TPP = triphenylphosphine) and core cross-linked micelles (L@CCM; L = TPP, BMOPPP) having a slightly different architecture were loaded...
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The mechanisms through which LH-RH antagonists suppress gonadotroph functions and LH-RH receptor (LH-RH-R) production are incompletely understood. To elucidate these mechanisms, we investigated the effects of Cetrorelix on the mRNA expression of pituitary LH-RH-R and luteinizing hormone (LH) secretion in three experimental systems with different pituitary LH-RH environments. Ovariectomy induced...
Pandora neoaphidis overwintering had been investigated by monitoring its prevalence in Myzus persicae populations in open fields. Cabbage plants in field plots were weekly taken after mycosis initiation, to count and examine the living and dead aphids infected by P. neoaphidis . Based on the field data, infection levels ( I) varied with field temperature (T), relative humidity (RH) and aphid co...
In the title compound, [Rh(C(13)H(16)NO)(C(18)H(15)P)(CO)], the coordination geometry of the Rh(I) atom is square-planar, formed by the coordinating N and O atoms of the bidentate enaminoketonate ligand, one C atom from the carbonyl group and a P atom from triphenyl-phosphine. The complex displays a 0.591 (3):0.409 (3) ratio disorder of the phenyl unit of the monoanionic N,O-bidentate ligand. I...
The atomic and electronic structure of h-BN deposited on Ru 001 , Rh 111 , and Pt 111 is discussed in terms of ab initio density functional theory. Our calculations indicate that the interaction between h-BN and the metal substrate is relatively weak for the h-BN/Pt 111 interface but rather strong for the Ru 001 and Rh 111 surfaces. The corrugations of the h-BN layer calculated for h-BN/Rh 111 ...
The reaction of (η(3)-all-yl)[(1,2,5,6-η)-cyclo-octa-1,5-diene]rhodium(I) with tris-(2,4-di-tert-butyl-phen-yl)phosphite in toluene produces the title compound, [Rh(C(42)H(62)O(3)P)(C(8)H(12))]·C(7)H(8), by spontaneous metallation at one of the nonsubstituted phenyl ortho-C atoms of the phosphite mol-ecule. The coordination geometry at the Rh(I) ion is distorted square-planar. The toluene solve...
The title compound, [Rh(C(10)H(7)N(2)O(2))(C(18)H(15)P)(CO)]·(CH(3))(2)CO, is the second structural report of a metal complex formed with the O,O'-C(10)H(7)N(2)O(2) (neocupferrate) ligand. In the crystal structure, the metal centre is surrounded by one carbonyl ligand, one triphenyl-phosphine ligand and the bidentate neocupferrate ligand, forming a distorted square-planar RhCO(2)P coordination ...
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