نتایج جستجو برای: natural and human

تعداد نتایج: 17127309  

Journal: :پژوهش و برنامه ریزی روستایی 0
منصور غنیان آزاده بخشی رقیه یوسفی حاجیوند آذز هاشمی نژاد

1. introduction wetlands are unique ecosystems that often appear on the sidelines of aquatic or terrestrial systems. they are among the most productive ecosystems on earth, the loss of which can lead to disastrous effects on the wild life and biodiversity. scientists believe that the destruction of wetlands results in the extinction of native species and their specific habitat. as the livelihoo...

Journal: :زن در توسعه و سیاست 0
منصور غنیان مربی گروه ترویج و آموزش کشاورزی دانشگاه کشاورزی و منابع طبیعی رامین(خوزستان) فضیله خانی دانشیار گروه جغرافیا و برنامه¬ریزی روستایی دانشکده جغرافیا، دانشگاه تهران مجتبی قدیری معصوم دانشیار گروه جغرافیا و برنامه¬ریزی روستایی دانشکده جغرافیا، دانشگاه تهران

non-renewable natural resources play an important role in sustainable development of developing countries such as iran. however, if natural resources are to be preserved for future generations, proper use of such resources will be imperative. women are one of the prime users of natural resources. this study assesses the conservational behavior of rural women and factors influencing such behavio...

نقره کار, عبدالحمید,

In order to achieve a new Islamic civilization, in between science topics such as creating works of art and architecture, it is necessary to present a conceptual model and a foundation. In terms of structure and process, this model should be comprehensive and content of each stage of the sources must be explicated according to islamic rules. In addition, this model should provide a structure, s...

Bioactive products from snail slime of “Helix” specie have potential applications in preventing and/or treating several human diseases and in cancer diagnosis. However, the poor pharmacokinetics characteristics of these natural compounds limit their use. Nanotechnology offers promising solutions for the enhanced formulation of these molecules through the synthesis of nanosized drug del...

Journal: :مدیریت اراضی 0
محمود عرب خدری استادیار پژوهشکده حفاظت خاک و آبخیزداری،

soil erosion in a given area depends on natural characteristics of the place as well as the rate of  human impact. in iran, the mediterranean precipitation regime and relatively high erosivity of rain, wide area of erodible soils/lithological formations, sparse natural vegetation in many regions and mountainous topography are main natural factors that affect soil erosion by water. accelerated s...

Bioactive products from snail slime of “Helix” specie have potential applications in preventing and/or treating several human diseases and in cancer diagnosis. However, the poor pharmacokinetics characteristics of these natural compounds limit their use. Nanotechnology offers promising solutions for the enhanced formulation of these molecules through the synthesis of nanosized drug del...

Introduction: Artificial and natural radionuclides exist in the environmental materials, such as water, soil, rocks, and plant as well as in animals and human body tissues. Therefore, human being and environment are at constant radiation exposure. Regarding this, the present study aimed to determine the specific activities of radionuclides and perform the risk assessment wheat and barley sample...

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