نتایج جستجو برای: the3rdhijri century
تعداد نتایج: 112802 فیلتر نتایج به سال:
خاک مراتع ذخیرهگاه مهم جهانی کربن بوده و هرگونه تغییر در این ذخیرهگاه تأثیر زیادی بر انتشار دیاکسیدکربن به اتمسفر و گرمایش جهانی دارد. ظرفیت این ذخیرهگاه به وسیله روابط متقابل پیچیده بین عوامل متنوعی مانند اقلیم، خصوصیات خاک، نوع پوششگیاهی و اقدامات مدیریتی کنترل میشود. مدلهای کربن برای فهمیدن اثر این فاکتورها بر کربن خاک در بلندمدت نقش مهمی دارند. مدلهای کربن باید به طور صحیح در منطق...
the voquea literary school is strongly associated to the periods of timurids – especially 2nd half of 15th century – and safavids from the view of social-political points. the school was founded in the last 15th century and reached its maturity by the end of that century to be continued up to the early 16th century. there have been several sporadic discussions about the poems of voquea school a...
In the twentieth century, vaccination has been possibly the greatest revolution in health. Together with hygiene and antibiotics, vaccination led to the elimination of many childhood infectious diseases and contributed to the increase in disability-free life expectancy that in Western societies rose from 50 to 78-85 years (Crimmins, E. M. & Finch, C. E. 2006 Proc. Natl Acad. Sci. USA 103, 498-5...
Because it primarily affects the poor in undeveloped parts of the world where medical care is often inadequate and insufficient, envenomation is considered a neglected public health issue, despite the existence of antivenom therapy for more than a century. This article provides an overview of the epidemiological situation for important venomous animals, together with achievements in the product...
Ferrites have always been a subject of great interest from point of view of magnetic application, since the fist compass to present date. In contrast, the scientific interest for iron based magnetic oxides decreased after Ørsted discovery as they where replaces by coil as magnetizing sources. Néel discovery of ferrimagnetism boosted again interest and leads to strong developments during two dec...
The main theme of this paper is culture justice, which is the new paradigm of culture development in the 21 century. The 21 century is characterized primarily by globalization and by the rapid development of science and technology. Confronted by the opportunities and challenges offered by these changes, different countries and people with different cultural traditions will make important judgme...
Using a dataset of 1,700 ages at first marriage for Roman Catholics born in the Groningen Ommelanden (The Netherlands) during the period 1721-1800 explanatory variables for the specific age at marriage have been searched for. The 18 th and early 19 th century Groningen Ommelanden fitted perfectly into Hajnal’s Western European marriage pattern with very high ages at marriage and a high celibacy...
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