نتایج جستجو برای: r1 and r4
تعداد نتایج: 16828158 فیلتر نتایج به سال:
Identification of primary free radicals in trehalose dihydrate single crystals X-irradiated at 10 K.
Primary free radical formation in trehalose dihydrate single crystals X-irradiated at 10 K was investigated at the same temperature using X-band Electron Paramagnetic Resonance (EPR), Electron Nuclear Double Resonance (ENDOR) and ENDOR-induced EPR (EIE) techniques. The ENDOR results allowed the unambiguous determination of six proton hyperfine coupling (HFC) tensors. Using the EIE technique, th...
INTRODUCTION The script concordance test (SCT) is an innovative tool for clinical reasoning assessment. It has previously been shown to be a reliable and valid measure of clinical reasoning among general surgical residents. PURPOSE To determine if the SCT maintained its validity and reliability when administered on a national level. METHODS The test was administered to 202 residents (51 R1,...
The lemmas in Appendix C.2 show how requirements R1–R6 are driven by group strategy-proofness and Pareto efficiency. The following examples further illustrate the role of the consistency requirements R4–R6. Requirement R4 is needed to ensure the individual strategy-proofness of the TC mechanisms. This requirement is also needed to ensure the individual strategyproofness of the TTC mechanisms, a...
PURPOSE Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL) selectively induces apoptosis in cancer cells and may be involved in protection from metastases. TRAIL receptor (TRAIL-R) 1 and TRAIL-R2, but not TRAIL-R3 and TRAIL-R4, mediate apoptosis. We examined the expression of TRAIL and its receptors in normal and neoplastic colon epithelium, and studied its correlation with prognos...
The strong growth of aquaculture in Senegal has led to a significant use fishmeal, which is becoming rarified and expensive. In order make the feed accessible small-scale producers, it became necessary find substitute for fish meal mainly used feeds, due its high content balanced proteins. Therefore, three feeds were formulated rearing comparison an industrial feed. study was conducted 45 days ...
Let R(·) stand for the bounded-error randomized query complexity. We show that for any relation f ⊆ {0, 1}×S and partial Boolean function g ⊆ {0, 1}×{0, 1}, R1/3(f ◦g ) = Ω(R4/9(f)·
Two rainbow trout chemokine receptors have been sequenced, with homology to CXC-R4 and CC-R7 molecules. The CXC-R4 sequence consisted of 1681 nucleotides, which translated into a mature protein of 357 amino acids, with 80.7% similarity to human CXC-R4. The CC-R7 sequence consisted of 2287 nucleotides, which translated into a 368-amino acid mature protein with 64.5% similarity to human CC-R7. Bo...
It is known that only certain strains of the family of Enterobacteriaceae, notably rough (R) mutants with the type R1 or R4 core, evoked antibodies in high titers against the common enterobacterial antigen (CA) after immunization of rabbits with heated cell suspensions. The present investigation deals with genetic and immunochemical aspects of certain R1 and R4 mutants isolated from Escherichia...
We describe the songs and courtship displays of three closely related hummingbirds, the Peruvian Sheartail (Thaumastura cora), Oasis Hummingbird (Rhodopis vesper), and the endangered Chilean Woodstar (Eulidia yarrellii). The Peruvian Sheartail and Oasis Hummingbird sing complex multisyllabic songs, while the Chilean Woodstar’s song is monosyllabic and simple. Like North American “bee” hummingbi...
Abstract This thesis is concerned with the synthesis of -sultams and the development of new routes for the synthesis of bicyclic versions of these molecules as potential anti-bacterials. The synthesis of 1-azetines, 1,2-thiazetin-1,1-dioxides and isothiazol-1,1-dioxides as precursors of bicyclic heterocycles is described. 1-Azetines were synthesised from azetidin-2-ones prepared via the [2+2] c...
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