نتایج جستجو برای: 39 soil were collected from different sources agriculture

تعداد نتایج: 7889187  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1393

abstract this quasi-experimental study was aimed at examining the impact of storyline complexity on the grammatical accuracy and complexity of advanced and intermediate efl learners. a total of 65 advanced and intermediate efl learners were selected from iran language institute (ili). an intact group including 35 intermediate participants and another intact group with 30 advanced participants ...

2008
S. NAYAK

The influence of soil pH was evaluated on the abundance and generic diversity of cyanobacteria in soil samples collected from diverse rice soil ecologies of India. Qualitative and quantitative studies of the 52 soil samples collected from nine agroecologies was carried out using enrichment, MPN (Most Probable Number) techniques and diversity indices were measured. A total of 166 forms, includin...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سمنان - دانشکده علوم تربیتی و روانشناسی 1391

anxiety is one common disorder during childhood. in curing anxiety disorders, there are different types of psychological remedies, pharmotherapy, family therapy, and music therapy that can improve the individual’s anxiety, but we need some other remedies to improve social and emotional relationship and interactions. considering the importance of curing the anxiety disorders, the effect of sand ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده ادبیات و زبانهای خارجی 1391

building on previous studies on intellectual features and learners’ grammar learning, the present study aimed at investigating whether intelligence criterion had any impact on efl learners’ english grammar learning across two intelligence levels. in the current study, the participants were divided into two experimental and control groups by administration of raven i.q. test. this led to the for...

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده مدیریت 1392

data envelopment analysis (dea) is a powerful tool for measuring relative efficiency of organizational units referred to as decision making units (dmus). in most cases dmus have network structures with internal linking activities. traditional dea models, however, consider dmus as black boxes with no regard to their linking activities and therefore do not provide decision makers with the reasons...

Introduction: Natural radioactivity in the soil is considered a major indicator of radiological contamination. Primordial radionuclides are the main source of natural radioactivity. Natural radioactivity transfers radionuclides into the environment and poses radiation hazards to people's health. Therefore, the present study aimed to determine the radon concentration an...

Journal: :global journal of environmental science and management 2016
gh. a. mohammadpour a.r. karbassi a. baghvand

presence of toxic metals in agricultural soils can impose adverse health impact on consumers. the main purpose of this study was to determine spatial distribution of elements fe, sb, mn in agriculture soils and crops of hamedan province in iran. soil samples (0-20 cm depth) were collected from an area of 2831 km2.  iron, antimony and manganese in samples of soil and agricultural crops were extr...

2008
P. H. Rathod J. C. Patel M. R. Shah Amit J. Jhala

Gamma irradiation is a form of pure energy which is currently used most widely for food and waste irradiation. To evaluate the potential of gamma irradiated sludge for its suitability as a soil amendment in agriculture, field experiments were carried out in a root crop, carrot (Daucus carota). Treatments consisting of three sources of manure (Farmyard Manure (FYM), gamma-irradiated sewage sludg...

Journal: :iranian journal of parasitology 0
m rezaeian m niyyati sh farnia a motevalli haghi

background: acanthamoeba spp . are free-living amebas found in a wide variety of natural habitats. the high percentage of acanthamoeba in different environmental sources represents a sanitary risk for public health especially contact lens users and immunocompromised patients. the aim of this study was to determine the presence of acanthamoeba spp. in different environments such as water, soil, ...

ژورنال: پیاورد سلامت 2019
Delavari, Mahdi , Eslamirad, Zahra, Moosavi, Gholam Abbass , Niyyati, Maryam, Rasti, Sima , sadat Atyabi, Hamideh ,

Background and Aim: Vermamoeba vermiformis is an opportunistic free living amoeba(FLA) that is ubiquitous in different environmental sources. This Amoeba can cause Amoebic Keratitis(AK) and Granulomatous Amoebic Encephlitis (GAE) in immunocompromised patients. This study was conducted to determine the rate of Vermamoeba vermiformis in stagnant water and soil in Arak. Materials and Methods:  In...

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