نتایج جستجو برای: five principal components were extracted in total
تعداد نتایج: 17168446 فیلتر نتایج به سال:
While a wide variety of machine-learning techniques have been productively applied to diverse prediction tasks, characterizing the nature patterns and rules learned by these has remained difficult problem. Often called ‘black-box’ models for this reason, visualization become prominent area research in understanding their behavior. One powerful tool summarizing complex models, partial dependence...
current studies in second language (l2) learning have revealed the positive role of corrective feedback (cf) in both oral and written forms in different language features. the present study was an attempt to investigate the effect of both direct and indirect written corrective feedback (wcf) on the use of grammatical collocations in l2 writing. the study also sought to examine whether the effec...
abstract this study aimed at investigating the possible relationship between self-assessment in writing and self-regulation of iranian efl learners. the main purpose of the study was not only to report and inform about this relationship, but also to investigate and find practical outcomes of the incorporation of self-assessment in writing, such as improving writing skill. the research was carr...
in the first part of this thesis we explored wetting and its dynamics for small droplets. first, we showed how a simple feature of water droplets on a surface, i.e. laplace pressure, can be exploited to build a micropump. we investigated capillary pumping in microchannels both experimentally and numerically. putting two droplets of different sizes at the in/outlet of a microchannel, will ge...
چکیده کنه تارتن دو لکه ای tetranychus urticae koch یکی از چندخوارترین آفات شناخته شده محصولات کشاورزی دنیا به حساب می آید. در این بررسی جمعیت تخم و مراحل فعال این کنه در شرایط آلودگی طبیعی و مصنوعی در برگ های 8 رقم لوبیا در سال 1392 در گلخانه و مزرعه تحقیقاتی دانشکده کشاورزی دانشگاه ارومیه موردمطالعه قرار گرفت. آزمایش به صورت طرح کاملاً تصادفی برای شرایط مزرعه در10 تکرار و برای شرایط گلخانه ای...
this thesis examines the significances and implications of inflicted physical pain in waiting for the barbarians (1980) by john maxwell coetzee (1940 - ). the researcher tries to show how body becomes a site for exercising violence. in this way, the government’s representatives turn bodies of the barbarians into blank pages through torturing in order to create the truth of the empire. in this p...
Edible seed watermelon is a cash crop in rain-fed condition in Khorasan provinces, with little research paid to it yet. In this study, genetic variation was evaluated among five candidate genotypes of edible seed watermelon, along with one commercial cultivar (Crimson Sweet) using 10 microsatellite primers (SSR) as well as morphological studies. 14 morphological traits were evaluated and analyz...
The genus Ixiolirion, belonging to the Amaryllidaceae family, contains about 3 species distributed in center and southwest of Asia and northeast of Africa. The Iranian flora consists of only one bulbous flowering species; Ixiolirion tataricum (Pall.) Herb., with the Persian name of “Khiarak”. In the present work, I. tataricum was collected, during the flowering stage,...
OBJECTIVES To validate DREEM in medical education environment of Punjab, Pakistan. METHODS The DREEM questionnaire was anonymously collected from Final year Baccalaureate of Medicine; Baccalaureate of Surgery students in the private and public medical colleges affiliated with the University of Health Sciences, Lahore. Data was analyzed using Principal Component Analysis with Varimax Rotation....
BACKGROUND China has the highest incidence of hemorrhagic fever with renal syndrome (HFRS) worldwide. Reported cases account for 90% of the total number of global cases. By 2010, approximately 1.4 million HFRS cases had been reported in China. This study aimed to explore the effect of the rodent reservoir, and natural and socioeconomic variables, on the transmission pattern of HFRS. METHODOLO...
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