نتایج جستجو برای: 3b

تعداد نتایج: 6958  

Journal: :Inorganic chemistry 2007
Avery T Luedtke Karen I Goldberg

Five-coordinate platinum(IV) alkyl complexes bearing sterically non-demanding pyridylpyrrolide ligands, (LX)PtMe(3) [LX = 3,5-di-tert-butyl-2-(2-pyridyl)pyrrolide (3a) and 3,5-diphenyl-2-(2-pyridyl)pyrrolide (3b)] have been prepared. An X-ray structure of 3a establishes that it is a five-coordinate Pt(IV) complex with a square-pyramidal geometry. Thermolysis of 3a or 3b in C(6)D(6) with ethylen...

Journal: :Physical review research 2023

Recently, unconventional materials (or obstructed atomic insulators) have attracted much attention owing to the feature of mismatch between Wannier centers and positions. In this paper, we demonstrate that trigonal selenium tellurium host an nature in both electronic phonon spectra. band structures, representation (BR) decomposition for occupied bands has contain essential BR $A@3b$, real-space...

2008
Niramon Utama-ang Penkwan Chompreeda Vichai Haruthaithanasan Nusiri Lerdvuthisopon Thongchai Suwonsichon Karl Wood Bruce A. Watkins

Jiaogulan (Gynostemma pentaphyllum; GP) contained a saponin glycoside which was related to ginseng saponin. The purpose of this study was to identify the main saponin in water extract GP compared to methanol and ethanol extract. The sample was prepared by alkaline cleavage, trimethylsilyl (TMS) derivatization and gas chromatographic-mass spectrometric (GC-MS) analysis comparison with standard g...

2017
Jinmei Wang Pengli Lian Qi Yu Jinfeng Wei Wen-yi Kang

Five polysaccharides, namely ADPs-1a, ADPs-1b, ADPs-2, ADPs-3a and ADPs-3b, were extracted from Angelicae dahuricae Radix, purified, and identified by high performance gel permeation chromatography (HPSEC), gas chromatography (GC), Fourier transform infrared (FT-IR) spectrometer and nuclear magnetic resonance spectra (NMR), including the determination of procoagulant activity in vitro. The aver...

Journal: :Neuron 2013
Zheng Wang Li Min Chen László Négyessy Robert M. Friedman Arabinda Mishra John C. Gore Anna W. Roe

Studies of resting-state activity in the brain have provoked critical questions about the brain's functional organization, but the biological basis of this activity is not clear. Specifically, the relationships between interregional correlations in resting-state measures of activity, neuronal functional connectivity and anatomical connectivity are much debated. To investigate these relationship...

Journal: :Hypertension 1990
R E Weishaar D C Kobylarz-Singer J Keiser S J Haleen T C Major S Rapundalo J T Peterson R Panek

Two subclasses of cyclic guanosine monophosphate (GMP)-specific phosphodiesterases were identified in vascular tissue from several beds. The activity of one subclass (phosphodiesterase IB) was stimulated severalfold by calmodulin and selectively inhibited by the phosphodiesterase inhibitor TCV-3B. The activity of the other subclass (phosphodiesterase IC) was not stimulated by calmodulin and was...

2008
David P. Bennett Sun Hong Rhie

We analyse the BATSE 3B catalog using the pair-matching statistic. This statistic counts only the burst pairs which may have originated from the same source, so it is less likely to yield false detections of \repeating bursts" than the nearest neighbor and correlation function statistics. Even in the ideal case when repeating is the only possible source of burst correlations, the pair matching ...

2013
Mei-Lan Mo Seung-Min Hong Hyuk-Joon Kwon Il-Hwan Kim Chang-Seon Song Jae-Hong Kim

The nucleotide sequences of a region including S1, S2, 3a, 3b and E genes of twenty-seven infectious bronchitis virus (IBV) isolates in Korea between 1990-2011 were determined and phylogenetic and computational recombination analyses were conducted. The sizes of coding regions of some genes varied among IBV isolates due to deletion or insertion of nucleotides; the nucleotide similarities of S1,...

Journal: :The Journal of neuroscience : the official journal of the Society for Neuroscience 2006
Arun P Sripati Takashi Yoshioka Peter Denchev Steven S Hsiao Kenneth O Johnson

Neurons in area 3b have been previously characterized using linear spatial receptive fields with spatially separated excitatory and inhibitory regions. Here, we expand on this work by examining the relationship between excitation and inhibition along both spatial and temporal dimensions and comparing these properties across anatomical areas. To that end, we characterized the spatiotemporal rece...

Journal: :The Journal of clinical investigation 1998
D Ndisdang P J Morris C Chapman L Ho A Singer D S Latchman

The cervical cellular transcription factors Brn-3a and Brn-3b have antagonistic effects on transcription of the human papilloma virus types 16 and 18 E6 and E7 oncogenes, with Brn-3a activating expression and Brn-3b repressing it. We therefore measured expression of Brn-3a and Brn-3b mRNAs in biopsies from 16 women with no detectable cervical abnormality, and in 14 women with cervical intraepit...

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