نتایج جستجو برای: epsilon

تعداد نتایج: 11049  

Journal: :Physical review. E, Statistical, nonlinear, and soft matter physics 2002
L Leuzzi F Ritort

In this paper we consider an exactly solvable model that displays glassy behavior at zero temperature due to entropic barriers. The new ingredient of the model is the existence of different energy scales or modes associated with different relaxational time scales. Low-temperature relaxation takes place by partial equilibration of successive lower-energy modes. An adiabatic scaling solution, def...

Journal: :Plant physiology 1995
R. Murphy JKE. Ortega

A new in vivo method was used to determine an average volumetric elastic modulus ([epsilon]ave) for nongrowing cells in plant tissue. This method requires that both the relative transpiration rate, T, of the tissue and the average turgor pressure decay rate, (dP/dt)ave, of the cells are measured after the water source is removed from the plant tissue. Then [epsilon]ave is calculated from the eq...

Journal: :Clinical chemistry 1993
G Eggertsen R Tegelman S Ericsson B Angelin L Berglund

We analyzed blood samples from 407 healthy Swedish individuals, 244 men and 163 women, ages 17 to 86 years, for apolipoprotein (apo) E isoforms and serum triglycerides, low-density lipoprotein (LDL), high-density lipoprotein (HDL), and total cholesterol. Parallel genotyping by means of polymerase chain reaction (PCR)-amplified DNA was performed in 200 subjects. Identical results were obtained b...

Journal: :Social Science Research Network 2022

For any $\epsilon>0$, Laue and Matijevic [CCCG'07, IPL'08] give a PTAS for finding $(1+\epsilon)$-approximate solution to the $k$-hop MST problem in Euclidean plane that runs time $(n/\epsilon)^{O(k/\epsilon)}$. In this paper, we present an algorithm $(n/\epsilon)^{O(\log k \cdot(1/\epsilon)^2\cdot\log^2(1/\epsilon))}$. This gives improvement on dependency $k$ exponent, while having worse $\eps...

Journal: :Anesthesiology 2003
Roman Kluger David J Olive Andrew B Stewart Carolyn M Blyth

BACKGROUND Epsilon-aminocaproic acid (epsilon-ACA), an antifibrinolytic agent, is used in cardiac surgery to decrease postoperative bleeding. Theoretical concerns exist about the potential for epsilon-ACA to contribute to thrombotic complications. For this reason epsilon-ACA administration is sometimes delayed until after heparinization. This study investigated the impact of the timing of epsil...

2009
Charles G. Knutson Emily H. Rubinson Dapo Akingbade Carolyn S. Anderson Donald F. Stec Katya V. Petrova Ivan D. Kozekov F. Peter Guengerich Carmelo J. Rizzo Lawrence J. Marnett

Non-invasive strategies for the analysis of endogenous DNA damage are of interest for the purpose of monitoring genomic exposure to biologically produced chemicals. We have focused our research on the biological processing of DNA adducts and how this may impact the observed products in biological matrixes. Preliminary research has revealed that pyrimidopurinone DNA adducts are subject to enzyma...

Journal: :Physical review letters 2002
G F Gribakin J Ludlow

The behavior of the positron- 2 gamma annihilation rate on an atomic target near the positronium (Ps) formation threshold is determined. When the positron energy epsilon approaches the threshold epsilon(thr) from below, the effective number of electrons contributing to the annihilation, Z(eff), grows as Z(eff) approximately A/square root of [epsilon(thr)-epsilon], where A is related to the size...

Journal: :American journal of clinical pathology 2000
B Nagy Z Bán E Tóth-Pál C Papp L Fintor Z Papp

Reports documented a higher frequency of apolipoprotein E (apoE) allele epsilon 4 among mothers of children diagnosed with Down syndrome. We studied the prevalence of apoE alleles among 56 conceptuses with trisomy 13, trisomy 18, or trisomy 21. The presence of the 3 most common apoE alleles (epsilon 2, epsilon 3, epsilon 4) was determined by polymerase chain reaction-restriction fragment length...

Journal: :Journal of immunology 2001
C H Shen J Stavnezer

Induction of germline (GL) epsilon transcripts, an essential step preceding Ig isotype switching to IgE, requires activation of transcription factors by IL-4 and a B cell activator, e.g., CD40 ligand or LPS. We demonstrate that AP-1 (Fos and Jun), induced transiently by CD40 ligand or LPS, binds a DNA element in the mouse GL epsilon promoter. AP-1 synergizes with Stat6 to activate both the inta...

Journal: :Genetics 1988
T Nagylaki

The evolution of the probabilities of genetic identity within and between the loci of a multigene family is investigated. Unbiased gene conversion, equal crossing over, random genetic drift, and mutation to new alleles are incorporated. Generations are discrete and nonoverlapping; the diploid, monoecious population mates at random. The linkage map is arbitrary, and the location dependence of th...

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