نتایج جستجو برای: adjustment of production
تعداد نتایج: 21222732 فیلتر نتایج به سال:
This research was carried out to investigate the heterogeneity of milk yield variance components in different production levels of holstein cattles. The first lactation milk yield records of 95945 Holstein cattles, which had calved in 651 herds through years 1991 to 2000, were used in this research. Data was collected by the Animal Breeding Center of Iran and adjusted for two-time milking per d...
پژوهش حاضر با هدف بررسی اثر جیره حاوی کربوهیدراتهای غیرالیافی زیاد و بروز التهاب در گاوهای شیرده در دو آزمایش جداگانه انجام شد. در آزمایش اول 20 رأس گاو مبتلا به ورم پستان از دو گروه کم تولید و پرتولید (هر کدام 10 رأس) و 20 رأس گاو سالم از دو گروه کم تولید و پرتولید (هر کدام 10 رأس) انتخاب شدند. همه گاوها در دوره دوم و یا سوم شیردهی و در روزهای 80-120 پس از زایش بودند. میانگین تولید شیر در گروه...
Motivation is assumed to influence behaviors via perceived agency over goal pursuits, but empirical research integrating motivation and action-control processes in social development is close to nonexistent. We applied this perspective to the study of early adolescent friendships by examining motivation for and perceived control (ability and effort) over establishing and maintaining friendships...
Compared with the large body of literature on coping, coping flexibility has received relatively scant research attention, although more such studies have begun to emerge recently. Researchers have conceptualized coping flexibility in diverse ways: as a broad coping repertoire, a well-balanced coping profile, cross-situational variability in strategy deployment, a good strategy-situation fit, o...
introduction: agriculture as one of old sectors of economy has been important role in the supply food for peoples and raw materials. globalization causes rapid growth of world trade and reduces information and communications costs. globalization and rapid growth of trade increases the potential benefits of trade for agriculture from various aspects. the potential benefits of trade for agricultu...
Introduction: One of the higher education’s goals is to train fine graduates with a healthy and adaptable personality. Moreover, academic adjustment is one of the fundamental and broad issues in psychology. Therefore, in order to identify associated factors, the purpose of this study was to determine the relationship between metacognitive strategies, academic adjustment and academic performance...
one of the main principles of resistance economy, is to support domestic production and limiting imports, especially in sectors where there is the possibility of import-substituting production .this requires adjustment of exact trade policies,and to achieve this, identifying the structure of imports demand function and also price and income elasticity of import demand is necessary.this necessit...
the regulated price policy may be implemented for some products. it is generally implemented for some products such as electricity, natural gas, water and so on that are supplied as monopolist. the regulated price shock on these products may lead to an adjustment in the endowments of primary factors. the aim of this paper is to investigate the effects of a regulated price shock on price indices...
The aim of present study was to investigate the mediating role of mindfulness in the relationship between psychological hardiness and forgiveness with marital adjustment among married women in district 10 of Tehran. In this correlational research a total of 260 married women selected via available sampling method. Data collected by Spanier Marital Adjustment Scale (1976), Long and Gullet Psycho...
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