نتایج جستجو برای: units
تعداد نتایج: 171804 فیلتر نتایج به سال:
the main objective in sampling is to select a sample from a population in order to estimate some unknown population parameter, usually a total or a mean of some interesting variable. a simple way to take a sample of size n is to let all the possible samples have the same probability of being selected. this is called simple random sampling and then all units have the same probability of being ch...
study of cohesive devices in the textbook of english for the students of apsychology by rastegarpour
this study investigates the cohesive devices used in the textbook of english for the students of psychology. the research questions and hypotheses in the present study are based on what frequency and distribution of grammatical and lexical cohesive devices are. then, to answer the questions all grammatical and lexical cohesive devices in reading comprehension passages from 6 units of 21units th...
there is no doubt that human being needs to become integrated with industry and industry needs to be progressed, daily. on the other hand, serious events in industrial units specially in oil industries has been shown that such damages and events are industry related ones. the consequence of such events and damages which resulted in chemical and poisoned explosions and loss of life and property ...
data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...
medication errors (mes) are the most common error in icus. in fact, 78% of all serious errors in icus are due to mes. therefore, detecting mes has vital significance. the goal of this study was to investigate the frequency, type and consequences of different types of errors including prescribing, transcribing and administration errors in an icu of a large teaching hospital. disguised direct obs...
introduction: increasing costs of health and treatment services has led health economics specialists and even physicians in all countries to seek new methods for controlling and reducing costs in medical and health services. the present study was aimed to estimate the costs of a cardiac care unit (ccu) in a governmental hospital in iran. methods: in order to determine the end cost, a stepwise p...
Abstract The aim of the present study is to explore strategies in enumerating units three dimensional (3D) arrays. We analyse enumeration students grade 3 (ages 8 9) situations cubical and spherical representations 3D By exploring students’ these two situations, we find that difficulties arrays can be traced units-locating, with consequence applying double triple counting. Our results also indi...
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