نتایج جستجو برای: impact of sex pheromones
تعداد نتایج: 21213269 فیلتر نتایج به سال:
The San Francisco Declaration on Research Assessment (DORA) was penned 5 years ago to articulate best practices for how we communicate and judge our scientific contributions. In particular, it adamantly declared that Journal Impact Factor (JIF) should never be used as a surrogate measure of the quality of individual research contributions, or for hiring, promotion, or funding decisions. Since t...
Sex with another species can be disastrous, especially for organisms that mate only once, like yeast. Courtship signals, including pheromones, often differ between species and can provide a basis for distinguishing between reproductively compatible and incompatible partners. Remarkably, we show that the baker's yeast Saccharomyces cerevisiae does not reject mates engineered to produce pheromone...
teachers beliefs have usually been left unattended in the realm of educational research in iranian context. one of those beliefs which seems to impact teachers performance in the classroom is their sense of self-efficacy, which refers to teachers belief in their ability to enhance student achievement and in bringing about positive learning outcomes. the present study aimed to investigate the pr...
uncertainty in the financial market will be driven by underlying brownian motions, while the assets are assumed to be general stochastic processes adapted to the filtration of the brownian motions. the goal of this study is to calculate the accumulated wealth in order to optimize the expected terminal value using a suitable utility function. this thesis introduced the lim-wong’s benchmark fun...
the geopolitics of afghanistan after september 11, 2001, and its impact on iranian national security
abstract u.s. attack to afghanistan after 9/11 provided opportunities for us who tried to become the dominant power after collapse of ussr and bipolar world. thinkers like fukuyama believed american liberal democrats thought would be universally accepted without resistances. liberal democracy is the best and final model of governance; in this regard, united state has moral responsibilities for...
This paper investigates the mechanism of the Journal Impact Factor (JIF). Although created as a journal selection tool the indicator is probably the central quantitative indicator for measuring journal quality. The focus is journal self-citations as the treatment of these in analyses and evaluations is highly disputed. The role of self-citations (both self-citing rate and self-cited rate) is in...
The journal impact factor (IF), which is published annually by the Institute for Scientific Information, (Philadelphia, USA), is meanwhile in widespread use as a scientometric parameter for the evaluation of research and researchers in Germany and other European countries. The present article subjects the IF to critical analysis. It first deals with processes of production, transfer, and use of...
BACKGROUND Journal impact factors and their ranks are used widely by journals, researchers, and research assessment exercises. METHODS Based on citations to journals in research and experimental medicine in 2005, Bayesian Markov chain Monte Carlo methods were used to estimate the uncertainty associated with these journal performance indicators. RESULTS Intervals representing plausible range...
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