نتایج جستجو برای: key words commodity p rice
تعداد نتایج: 1951033 فیلتر نتایج به سال:
Recent human population increase has been enabled by a massive expansion of global agricultural production. A key component of this "Green Revolution" has been application of inorganic fertilizers to produce and maintain high crop yields. However, the long-term sustainability of these practices is unclear given the eutrophying effects of fertilizer runoff as well as the reliance of fertilizer p...
Agricultural technologies have been identified as one of the key ways to improve smallholder farmers' food security and livelihoods in Sub-Saharan Africa. However, adoption these remains low. Previous studies focused more on agronomic socio-economic aspects influencing agricultural technology adoption. The social cultural dimensions hardly addressed. main objective this study was establish ...
Output growth in the U.S., a commodity-importing country, increases its demand for imports of commodities and therefore commodity prices, which benefits commodityexporting countries but has adverse effects on commodity-importing countries. Hence, in the data, U.S. output is more positively correlated with outputs of commodity-exporting countries than commodity-importing countries. In other word...
خصوصیات کاریوتیپی چهار گونه گون (astragalus) با نامهای a. cornu-carpae ، a. mucronifoliusو a. talimansurensis از بخشه leucocersis و گونه a. crysostachysاز بخشه hymenostegis. مطالعه شدند. گونه ها وجود 2n = 2x = 16 را نشان دادند که تمامی گزارش جدید می باشند. کروموزومها از نوع متا و ساب متا بودند و اندازه آنها ازmm 75/. در a. talimansurensis تا 4 mm در a. cornu-carpaeمتغیر بود. گونه های ...
background and purpose: occular toxicity is one of the most important complications of hydroxychloroquine. not any type of treatment has so far been found and recommended for this disorder. the purpose of this study was to report some characteristics of patients with hydroxychloroquine induced retinopathy. materials and methods: from 107 patients with rheumatoid arthritis (ra) and/or systemi...
background: the advancement of technology in recent decades has been lead to use the electrophysiology cardiac devices. although these devices are used increasingly, but the frequency of subclinical infection is unknown. we investigate bacterial infections due to implantable cardioverter defibrillator (icds) in patients with endocarditis. m aterials and methods: population of the study was cons...
abstract purpose-the purpose of this paper is to review a sample of the literature relating to interpretive structural modelling (ism) and its deployment for modelling purposes in the area of supply chain management (scm). design/methodology/approach- the literature is examined from the three perspectives. first, concept of ism and examines ism as modelling technique. second, use of ism by the ...
interpreters have emphasize the necessity of knowing e’rab (diacritic) and syntax in the holy quran and none of them has been doubtful in the significance of the role of e’rab in interpreting. tabarsi in his interpretation book has exerted his efforts in delineating e’rab and after mentioning verses for interpreting, firstly explains lexical elements and then, discusses their e’rab. the signifi...
چکیده: مقدمه: درد و تورم ناشی از التهاب پالپ درگیر باعث ایجاد اورژانس های اندودنتیک می شود. اتخاذ روش های درمانی برای کاهش درد بیماران در این شرایط کلینیکی هنوز هم یکی از چالش برانگیزترین مسائل علم اندودنتیکس است. این مطالعه با هدف بررسی میزان آگاهی از شیوه درمان اورژانس های اندودنتیک در بین دندانپزشکان متخصص درمان ریشه و دندانپزشکان عمومی شهر مشهد در سال 91-1390 انجام می شود. مواد و روش ها:...
introduction: determination of type and location of trapped objects and endoscopic observations among children with foreign-body ingestion. materials and methods: we evaluated 105 endoscopic records of patients presenting with foreign-body ingestion from 2001–2011. results: button batteries were the most common objects removed (41%). the lower segment of the esophagus was the most common trappi...
نمودار تعداد نتایج جستجو در هر سال
با کلیک روی نمودار نتایج را به سال انتشار فیلتر کنید