نتایج جستجو برای: 1228
تعداد نتایج: 510 فیلتر نتایج به سال:
Despite their significant role in the performance of hotel industry, workers are suffering from high rates turnover, due to several reasons, particularly amid COVID-19 pandemic. The pandemic has had numerous negative consequences on workers, including intention leave job or/and career. This study is an attempt investigate impact transformational leadership turnover and how psychological safety ...
The behavior of displacement field due to a screw dislocation is similar the angular basis function (ABF) Arg(z). It different from radial (RBF) ln(r) that used describe velocity potential sink or source. Nevertheless, complex-valued fundamental solution ln(z) contains two parts RBF and ABF In this paper, not only in null-field boundary integral equation (BIE) but also for are employed study in...
آلیاژ Ti-6Al-4V در یک کورة اتمسفر کنترل توسط آلیاژ پرکنندة آمورف 1228 STEMET با ترکیب شیمیـایی (Ti-27Zr-14Cu-13Ni, wt%) لحیم شد. ابتدا کیفیت اتصالات لحیم توسط آزمون اولتراسونیک و با استفاده از روش اندازه گیری ضخامت کراتکرامر برانسون[i] ارزیابی شد. سپس تأثیر زمان و دماهای مختلف بر ریزساختار و خواص مکانیکی بررسی شد. بررسی ریزساختار توسط میکروسکوپ نوری، میکروسکوپ الکترونی روبشی[ii] و بررسی خواص مک...
Gamma-ray bursts (GRBs) are highly variable and exhibit strong spectral evolution. In particular, the emission properties vary from pulse to in multipulse bursts. Here we present a time-resolved Bayesian analysis of compilation GRB pulses observed by {\it Fermi}/Gamma-ray Burst Monitor. The selected have at least four timebins with high statistical significance, which ensures that fits well det...
Background: The incidence of obesity worldwide has increased over the last 20 years. increase in maternal pregnancy is causing a major challenge to obstetrics practices. aimed study was evaluate gestational weight gain as risk for preeclampsia pregnant women. Methods: This cross-sectional conducted on 2756 women with age≥37 weeks. selection categorized into two groups, 1528 normal-weight BMI le...
In recent decades, the incipient technological development has generated a radical change in way people access and transmit knowledge. Educational institutions must have teaching staff adapted to new forms of consuming information. The purpose this research is know media competence Spanish teachers, from perspective families schoolchildren primary education. This analysis based on investigation...
PURPOSE Blogging is an increasingly popular method of sharing and reflecting on experiences of medical students in the World Wide Web with a potentially global learning community. The authors are not aware of studies that specifically examined blogs by medical students and thus for the first time investigated the type of experiences and impressions that emerged from these blogs with relevance f...
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