نتایج جستجو برای: by increasing arsenic level from control a1 to 90 mg kg

تعداد نتایج: 13627079  

2016
Subrat Kumar Dash Shashi Nayyar Rajesh Jindal

AIM The study investigated the effect of Terminalia arjuna bark powder on some diagnostic enzymes related to hepatic and muscle function in buffaloes ingesting arsenic contaminated water and fodder in an arsenic affected area. MATERIALS AND METHODS A total of 25 samples of tube well water, fodder and buffalo blood were collected through a survey from arsenic contaminated areas and 20 samples ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه زنجان - دانشکده علوم انسانی 1390

the main purpose of this study was to investigate any relationship between high school efl teachers metaphorical understandings of their role in class and their self-efficacy beliefs. teachers metaphors were elicited through two different prompts: one picturing what they believed a language teacher should be like in class, and the other demonstrating what they are actually like in class; such...

2013
M. Azizur Rahman H. Hasegawa M. Mahfuzur Rahman M. Arifur Rahman A. M. Miah

26 A study was conducted to investigate the accumulation and distribution of arsenic in 27 different fractions of rice grain (Oryza sativa L.) collected from arsenic affected area of 28 Bangladesh. The agricultural soil of study area has become highly contaminated with 29 arsenic due to the excessive use of arsenic-rich underground water (0.070±0.006 mg l, 30 n=6) for irrigation. Arsenic conten...

Journal: :Chemosphere 2007
M Azizur Rahman H Hasegawa M Mahfuzur Rahman M Arifur Rahman M A M Miah

A study was conducted to investigate the accumulation and distribution of arsenic in different fractions of rice grain (Oryza sativa L.) collected from arsenic affected area of Bangladesh. The agricultural soil of study area has become highly contaminated with arsenic due to the excessive use of arsenic-rich underground water (0.070+/-0.006 mg l(-1), n=6) for irrigation. Arsenic content in tiss...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه مازندران - دانشکده علوم انسانی و اجتماعی 1388

the present study set out (a) to examine the categories of pedagogical knowledge related to the act of teaching of novice and experienced teachers as gleaned from their verbal report of what they were thinking about while teaching and (b) to compare the categories of pedagogical knowledge of novice and experienced teachers. the aim of comparing these two groups of teachers was to see whether di...

Journal: :Environmental pollution 2008
Maria I S Gonzaga Jorge A G Santos Lena Q Ma

This greenhouse experiment evaluated arsenic removal by Pteris vittata and its effects on arsenic redistribution in soils. P. vittata grew in six arsenic-contaminated soils and its fronds were harvested and analyzed for arsenic in October, 2003, April, 2004, and October, 2004. The soil arsenic was separated into five fractions via sequential extraction. The ferns grew well and took up arsenic f...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه فردوسی مشهد - پژوهشکده ادبیات 1391

the major purpose of this study was to develop the translation teacher competency test (ttct) and examine its construct and predictive validity. the present study was conducted in two phases: a qualitative phase as well as a quantitative phase. in the first phase of the study, the author attempted to find out the major areas of competency required for an academic translation teacher. the second...

Journal: :Journal of environmental sciences 2008
Xiyuan Xiao Tongbin Chen Zhizhuang An Mei Lei Zechun Huang Xiaoyong Liao Yingru Liu

Field investigation and greenhouse experiments were conducted to study the tolerance of Pteris vittata L. (Chinese brake) to cadmium (Cd) and its feasibility for remediating sites co-contaminated with Cd and arsenic (As). The results showed that P. vittata could survive in pot soils spiked with 80 mg/kg of Cd and tolerated as great as 301 mg/kg of total Cd and 26.8 mg/kg of diethyltriaminepenta...

Journal: :Environmental pollution 2013
Ya Wang Jiu Jimmy Jiao Sanyuan Zhu Yiliang Li

Determination of oxidation states of solid-phase arsenic in bulk sediments is a valuable step in the evaluation of its bioavailability and environmental fate in deposits, but is difficult when the sediments have low arsenic contents and heterogeneous distribution of arsenic species. As K-edge X-ray absorption near-edge spectroscopy (XANES) was used to determine quantitatively the oxidation stat...

Journal: :Andrologia 2023

Exposure to arsenic is linked a wide range of diseases, in particular male reproductive toxicities. Trametes versicolor traditional medicinal fungus with remarkable potential for antioxidant activity. The purpose this study was examine the ameliorating effects water and methanol extracts T. on arsenic-induced toxicities via abrogation oxidative stress. mice were divided as follows: control: nor...

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