نتایج جستجو برای: standard deviation and percentage and inferential statistics k
تعداد نتایج: 16925164 فیلتر نتایج به سال:
Background: The humans’ greed, the productivity of natural resources, the sense of jobbery, and capitalists and producers’ avarice, are some threats to the natural resources. Therefore, the environmental issue has been considered by many scholars. The issue of environmental ethics has been raised in order to solve these problems by the experts. Hence, the present article aimed to highlight the ...
with the increasing population and the need for more food, as well as with the development of science and technology, human approach to unnatural and often chemical inputs to increase agricultural production has been a great expansion and problems such as increased cancers, chronic diseases has created environmental pollution. implementation of organic organic is a solution to these problems . ...
there are two major theories of measurement in psychometrics: classical test theory (ctt) and item-response theory (irt). despite its widespread and long use, ctt has a number of shortcomings, which make it problematic to be used for practical and theoretical purposes. irt tries to solve these shortcomings, and provide better and more dependable answers. one of the applications of irt is the as...
Background The learning environment dramatically affects the learning outcomes of students. Noise, inappropriate temperature, insufficient light, overcrowded classes, misplaced boards and inappropriate classroom layout all make up factors that could be confounding variables distracting students in class. This study was conducted to examine the effect of noise in educational institutions on the ...
Recording nursing reports is considered as a quality assurance tool for patients and nurses. Nowadays, the presence of electronic health record systems is an indicator of development. Studies on advantages and disadvantages of the electronic and manual recording methods have shown different results. In this study, electronic and manual recording of nursing reports were compared from the perspec...
The aim of this study was to determine the effect of perceived value on loyalty and purchase behavior of Spectators. This study was a correlation research and in from field study. The study population consists of all spectators Tractor Club. Data was collected by 3 questionnaires. This questionnaires consist perceived value(sweeny,2008), loyalty(Mahoony,2000) and purchase behavior(2008) that af...
a semi-empirical mathematical model for predicting physical part of ignition delay period in the combustion of direct - injection diesel engines with swirl is developed . this model based on a single droplet evaporation model . the governing equations , namely , equations of droplet motion , heat and mass transfer were solved simultaneously using a rung-kutta step by step unmerical method . the...
introduction: applying information technology in healthcare system is one of the most important criteria of the world health organization for evaluating the quality of healthcare systems of different countries. moreover, applying this technology in different parts of health care system can create great potentials for improving the quality of healthcare services. in this regard, radio frequency ...
در این پایان نامه ابتدا در مورد توابع تک ارز و خواص هندسی آنها و همچنین رابطه ئ این خواص هندسی با شرایط معادل خواص تحلیلی را مطالعه می کنیم. سپس زیر کلاسهای k وs^* (?) که شامل توابع نزدیک به محدب در دیسک واحد u است را تعریف می کنیم وبه کمک خواص پیروی و مشتق توابع تحلیلی خواص شمولیت، برآورد ضریب وقضایای پوششی وچند خاصیت دیگر را در مورد زیر کلاس k_s (?,a,b) مورد بحث وبررسی قرار می دهیم. کارهای ا...
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