Results 41 to 50 of about 1,680 (154)

بررسی روند متغیر های آب و هواشناختی حوضه هیرمند و تاثیر آن بر تخریب زمین در دشت سیستان [PDF]

open access: yesپژوهش‌های حفاظت آب و خاک, 2020
سابقه و هدف: خشک شدن تالاب‌های بین‌المللی هامون و توفان‌های گردوغبار ایجادشده از بستر این تالاب‌ها در دو دهه اخیر به‌عنوان یکی از مهم‌ترین دغدغه‌های زیست‌محیطی شرق کشور مطرح بوده است.
محمد رحیمی   +2 more
doaj   +1 more source

Recovery of gold from computer circuit board scraps: the study of the effect of different reductants [PDF]

open access: yesشیمی کاربردی روز, 2013
Computer circuit boards (CCBs) are valuable because of their precious metal contents. In this regard, the recovery of gold from CCBs has attracted great interest. In this work, we report the recovery of gold from CCBs with different reductants.
Naghi Saadatjoo   +3 more
doaj   +1 more source

الفكرة عن علم اللغة التربوي في تعليم اللغة الثانية

open access: yesTafhim Al-'Ilmi, 2022
The Planning of language teaching has to be planned as good as possible to reach the purpose of that teaching. The Planning is not only about the theories but more than that it is about the other matters such as policy, organizing, these matters have role to help the teacher to succeed the program of foreign language teaching and how to implement an ...
openaire   +1 more source

بررسی عملکرد مقاومتی و نفوذپذیری بتن متخلخل حاوی پرلیت و لیکا برای استفاده در سیستم رواناب شهری [PDF]

open access: yesمهندسی عمران فردوسی, 2018
با افزودن پرلیت و لیکا به بتن متخلخل، خواص فیزیکی آن بررسی گردید. مقاومت فشاری، ضریب نفوذپذیری و درصد تخلخل برای دو حالت بدون ریزدانه و حاوی 20­% ریزدانه اندازه­گیری شد.
احسان تیموری   +3 more
doaj   +1 more source

Effect of public interventions through dialogue with officials and training of civil service personnel on improving the condition of collecting, transportation and rubbish repelling in Semnan (2004-2005) [PDF]

open access: yes, 2006
زمینه و هدف: زباله اصطلاحاً به فضولات جامد، نیمه جامد یا مایعی گفته می شود که ظاهراً به درد نخور بوده و دور ریخته می شوند. زباله ها به سه دسته زباله های خانگی، بیمارستانی و صنعتی تقسیم می شوند که قسمت اعظم مواد زائد شهری را زباله های خانگی تشکیل می دهند.
bidokhti, Masoud.   +9 more
core  

Preventing Neurons and Glial Cells Destruction in Substantia Nigra Pars Compacta and Striatum Using St. John's Wort and Stem Cells on Parkinson's Model

open access: yesBrain and Behavior, Volume 15, Issue 12, December 2025.
‐ ABSTRACT Study Objective St. John's wort (Hypericum perforatum) has been used for centuries as a medicinal plant to remedy external disorders such as burns and wounds, as well as internal disorders such as nerve pain, anxiety, and depression. Bone marrow mesenchymal stem cells (BMSCs) are a heterogeneous population of pluripotent stromal cells that ...
Hamed Farzadmanesh   +8 more
wiley   +1 more source

علم الصرف: نشأته وتطوره

open access: yesEl-Wasathiya: Jurnal Studi Agama, 2016
Abstrak: Shorof telah menjadi bagian dari ilmu linguistic Arab yang mempelajari tentang struktur kata dan perubahan-perubahan yang terjadi padanya. Pada pertengahan abad pertama Hijriyah, shorof tumbuh bersama ilmu nahwu, sebagai  satu macam ilmu bahasa. Selanjutnya ilmu shorof berkembang sendiri secara terpisah dari ilmu nahwu.
openaire   +1 more source

Analysis of Indicators of Health Status in Provinces and Ten Regions of Iran [PDF]

open access: yes, 2018
Background: Health sector is one of the most important management sectors that improvement of its indicators, leads to increased wellbeing of people, costs reduction and ultimately sustainable development.
Montazer, Faramarz   +1 more
core  

Systemic corticosterone enhances fear memory extinction in rats: Involvement of the infralimbic medial prefrontal cortex GABAA and GABAB receptors

open access: yesBrain and Behavior, Volume 14, Issue 10, October 2024.
Abstract Purpose The infralimbic (IL) subregion of the medial prefrontal cortex (mPFC) regulates the extinction of conditioned fear memory. Glucocorticoid and gamma‐aminobutyric acid (GABA) receptors are expressed in the mPFC and are also critical in fear extinction.
Samira Omoumi   +6 more
wiley   +1 more source

Mild exercise plus levothyroxine ameliorate deficits of spatial navigation, anxiety profile, and hippocampal BDNF in hypothyroid male offspring rats

open access: yesBrain and Behavior, Volume 14, Issue 7, July 2024.
A maternal PTU‐induced hypothyroidism model led to increased anxiety‐like behaviors, impaired spatial navigation, and reduced hippocampal BDNF levels in male offspring rats. Levothyroxine alone increased BDNF levels and improved spatial learning, while exercise alone boosted BDNF levels, enhanced spatial learning and memory, and reduced anxiety‐like ...
Ali Boustani   +4 more
wiley   +1 more source

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