نتایج جستجو برای: i1

تعداد نتایج: 3866  

Journal: :Biochemical Society transactions 1997
G C Russell S C Craigmile A Gallagher E J Glass

Cattle express Major Histocompatibility Complex (MHC) class I1 products encoded by the DR and DQ loci. Each haplotype expresses a single DR product, and one or more DQ products due to duplication of the DQ locus in about half the common cattle haplotypes. In order to define the roles of the individual class I1 products in antigen presentation and T cell responses, we are cloning and transfectin...

2017
ANTHONY MENDES

Let I1 and I2 be intervals of real numbers. An interval game is played in this way: player 1 secretly selects x ∈ I1 and player 2 secretly and independently selects y ∈ I2. After x and y are revealed, payoffs are given by some predetermined function with domain I1 × I2. The payoff function for a zero sum interval game is a function A : I1 × I2 → R. This is interpreted to mean that the second pl...

Journal: :Molecular Systems Biology 2008
Shai Kaplan Anat Bren Erez Dekel Uri Alon

Gene regulation networks contain recurring circuit patterns called network motifs. One of the most common network motif is the incoherent type 1 feed-forward loop (I1-FFL), in which an activator controls both gene and repressor of that gene. This motif was shown to act as a pulse generator and response accelerator of gene expression. Here we consider an additional function of this motif: the I1...

2009
Aleksandar Ivić

It is proved that, for T ε 6 G = G(T ) 6 2 √ T , ∫︁ 2T T (︁ I1(t+G,G)− I1(t, G) )︁2 dt = TG 3 ∑︁ j=0 aj log (︁√ T G )︁ +Oε(T 1+εG1/2 + T 1/2+εG2) with some explicitly computable constants aj (a3 > 0) where, for fixed k ∈ N, Ik(t, G) = 1 √ π ∫︁ ∞ −∞ |ζ( 1 2 + it+ iu)| 2ke−(u/G) 2 du. The generalizations to the mean square of I1(t+U,G)−I1(t, G) over [T, T+H] and the estimation of the mean square ...

Journal: :Journal of the Royal Society, Interface 2013
Ganhui Lan Yuhai Tu

The incoherent type-1 feed-forward loop (I1-FFL) is ubiquitous in biological regulatory circuits. Although much is known about the functions of the I1-FFL motif, the energy cost incurred in the network and how it affects the performance of the network have not been investigated. Here, we study a generic I1-FFL enzymatic reaction network modelled after the GEF-GAP-Ras pathway responsible for che...

Journal: :The Journal of biological chemistry 1974
G Rotilio L Calabrese B Mondovì W E Blumberg

1. EPR spectra of cobalt-copper bovine superoxide dismutase at liquid nitrogen and liquid helium temperature show that the two metal centers are magnetically coupled. The temperature dependence of the spectra indicates that this coupling arises from an exchange interaction. 2. The EPR spectrum of the Co(I1) of the enzyme can only be seen after reduction of the Cu(II), at very low temperature. I...

2007
Artur Korniłowicz

The articles [15], [8], [9], [10], [14], [11], [18], [2], [4], [6], [7], [5], [16], [1], [3], [19], [20], [12], [17], and [13] provide the notation and terminology for this paper. For simplicity, we adopt the following rules: a, b are data-locations, i1, i2, i3 are instruction-locations of SCM, s1, s2 are states of SCM, T is an instruction type of SCM, and k is a natural number. We now state a ...

Journal: :The Journal of biological chemistry 1974
S J Lau T P Kruck B Sarkar

Diglycyl-L-histidine is a peptide molecule designed to mimic the specific Cu(II) transport site of human albumin. The equilibria involved in the Cu(II)-diglycyl-L-histidine system have been investigated by analytical potentiometry in aqueous solution (0.15 M NaCl, 25’). The synthetic peptide molecule bound Cu(I1) exclusively as a 1: I complex in the pH range of 6.50 to 11.00. The results furthe...

2006
E. A. ESPINER A. J. ZWEIFLER

Animal experiments indicate that angiotensin I1 can, under some circumstances stimulate the sympathetic nervous system at a number of different sites. In order to determine whether such a relationship of the renin-angiotensin and sympathetic nervous system exists in man, we increased (by intravenous infusion), or decreased (by administering the oral converting enzyme inhibitor captopril) circul...

Journal: :Journal of clinical microbiology 1985
J H Gillespie D S Robson F W Scott E I Schiff

We used bacteria-derived bovine alpha-interferon I1 (Bo IFN-alpha I1) to study its antiviral effect in a bovine turbinate cell line on bovine diarrhea virus, infectious bovine rhinotracheitis virus, parainfluenza 3 virus, and pseudorabies virus. We based our study upon replicate tests for each strain by using a block titration system with various concentrations of Bo IFN-alpha I1 against variou...

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