نتایج جستجو برای: meeting of human needs for food
تعداد نتایج: 22903823 فیلتر نتایج به سال:
1. introduction different research findings depict that rural areas of country are underdeveloped in spite of many efforts that have been done concerning rural development. various scientific ideas have been provided by researchers concerning rural underdevelopment conditions. in one of the approaches concerning country underdevelopment, internal factors have been introduced as original factors...
Potatoes are the third most important food crop in Iran. But fluctuations in the production of potato have made imbalances in supply and demand. Lack of appropriate planning for cultivation and marketing operation and farmers’ little knowledge of marketing provides a ground for uncertainty about marketing. To compete successfully in markets, knowledge on marketing is necessary. Succeeding in ma...
to physicians, meat is considered as the best nutrition because it includes rich protein that is necessary for the construction of body cells and tissues. also meat is regarded as the basic food meeting the nutritional and therapeutic needs of human beings. meat, because of containing the high nutritional value, has been a good indicator of economic growth and social welfare of communities. var...
today, scouring is one of the important topics in the river and coastal engineering so that the most destruction in the bridges is occurred due to this phenomenon. whereas the bridges are assumed as the most important connecting structures in the communications roads in the country and their importance is doubled while floodwater, thus exact design and maintenance thereof is very crucial. f...
in the present work, a simple and sensitive method was developed for determination of morphine and heroin using gold nanoparticles as resonance rayleigh scattering (rrs) and colorimetric technique’s probe. synthesized gold nanoparticles by sodium citrate reduction method have a negative charge layer on their surfaces because of self-assembled citrate anions on their surface. binding of morphin...
The aim of this paper is to investigate the bazaars and shopping centers as public spaces. Given theweakness of public places and consequently the weakness of social interactions, today’s societies are in dire need ofsocial spaces to increase social interactions. Therefore, the review of these two as then and now’s urban spaces couldhelp solve some problems. Bazaars are among the oldest Iranian...
in this article, we have focused one some basic and productive information about the properties of spectrum and singular values related to compact operators which are ideals in a c*-algebra of bounded operators. considering a two-sided connection between the family of symmetric gauge functions on sequence of singular values of compact operators and symmetric norms on finite dimensional ope...
over the past decades a number of approaches have been applied for forecasting mortality. in 1992, a new method for long-run forecast of the level and age pattern of mortality was published by lee and carter. this method was welcomed by many authors so it was extended through a wider class of generalized, parametric and nonlinear model. this model represents one of the most influential recent d...
saluk mount is selected for devonian biostratigraphy. this area located at southwest of bojnurd. in this study three sections are selected and two sections, chahar-borj and tabar sections with a thickness of 650 m, which consist mainly of calcareous sediments was studied in detailed but third section, qelli section, with a thickness of about 450m which consist mainly of sandstone and evaporates...
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