نتایج جستجو برای: مقطع hat

تعداد نتایج: 27726  

1996
Roberto J. Mejias Litva Lazeneo Alvaro Rico Ana Torres Douglas R. Vogel Morgan M. Shepherd

Relatively few studies have considered cultural dimensions in their analysis of Group Support Systems (GSS) and even fewer have employed empirical data to test their hypotheses. A cross-culturalfleld experiment was used to measure the effects of “‘national culture” (U.S. andMexican) upon group consensus levels and individual satisfaction levels in GSS environments and non-G%’ environments. Expe...

Journal: :Dalton transactions 2006
Mikhail Shatruk Abdellatif Chouai Kim R Dunbar

Reactions of Cu I salts with 1,4,5,8,9,12-hexaazatriphenylene (HAT) afford three types of cationic coordination polymers depending on the anion present in the reaction solution. In the crystal structure of {[Cu(HAT)][BF4]x1/3(C6H6)}infinity, (1), Cu ions and HAT molecules form extended layers that are best described as strongly distorted honeycomb nets. The space between the layers is occupied ...

2008
D. W. Latham R. W. Noyes Géza Kovács J. Hartman G. A. Esquerdo D. A. Fischer J. A. Johnson G. W. Marcy R. P. Butler A. Howard D. D. Sasselov Gábor Kovács R. P. Stefanik J. Lázár

We report on the discovery of HAT-P-10b, the lowest mass (0.46 ± 0.03MJ) transiting extrasolar planet (TEP) discovered to date by transit searches. HAT-P-10b orbits the moderately bright V=11.89 K dwarf GSC 02340-01714, with a period P = 3.7224690 ± 0.0000067 d, transit epoch Tc = 2454729.90631± 0.00030 (BJD) and duration 0.1100 ± 0.0015d. HAT-P-10b has a radius of 1.05 −0.03RJ yielding a mean ...

2007
Tomás R. Jiménez Laura Jiménez

Objective. Survey research posits that Mexican Americans’ perceptions of the costs and benefits of immigration drive their opinions about immigration, but this research does not provide a clear picture of how Mexican Americans calculate these costs and benefits. This article aims to understand the processes that explain how Mexican Americans calculate the costs and benefits of Mexican immigrati...

Journal: :Genetics 2001
E Rubin G Lithwick A A Levy

The maize transposon Activator (Ac) was the first mobile DNA element to be discovered. Since then, other elements were found that share similarity to Ac, suggesting that it belongs to a transposon superfamily named hAT after hobo from Drosophila, Ac from maize, and Tam3 from snapdragon. We addressed the structure and evolution of hAT elements by developing new tools for transposon mining and se...

Journal: :Tanzania journal of health research 2008
C Sindato E N Kimbita S N Kibona

This study was carried out to assess the knowledge and level of individual and community participation in the control of Human African trypanosomiasis in Urambo District, western Tanzania. Semi structured questionnaires were used to collect information from individuals at house hold level. Retrospective data of HAT was sought from the medical officers in-charge of health facilities. The results...

2013
Philippe Gillet Dieudonné Mumba Ngoyi Albert Lukuka Viktor Kande Benjamin Atua Johan van Griensven Jean-Jacques Muyembe Jan Jacobs Veerle Lejon

BACKGROUND In endemic settings, diagnosis of malaria increasingly relies on the use of rapid diagnostic tests (RDTs). False positivity of such RDTs is poorly documented, although it is especially relevant in those infections that resemble malaria, such as human African trypanosomiasis (HAT). We therefore examined specificity of malaria RDT products among patients infected with Trypanosoma bruce...

ژورنال: پژوهش های ریاضی 2019

In this paper, we consider the numerical solution of a class of delay fractional optimal control problems using modification of hat functions. First, we introduce the fractional calculus and modification of hat functions. Fractional integral is considered in the sense of Riemann-Liouville and fractional derivative is considered in the sense of Caputo. Then, operational matrix of fractional inte...

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