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

تعداد نتایج: 13627079  

Journal: :Han-guk toyang biryo hakoeji 2021

Arsenic (As) contamination in agricultural soils causes adverse influences on crop growth and yield, serious human health issues. The objectives of this study were to (a) verify the change chemical properties under different As contaminated soils, (b) compare yield rice grown concentrations As-contaminated soil, (c) investigate relationship between total phytoavailable soil accumulated polished...

Journal: :Ecotoxicology and environmental safety 2008
M Azizur Rahman H Hasegawa M Mahfuzur Rahman M A Mazid Miah A Tasmin

Although human exposure to arsenic is thought to be caused mainly through arsenic-contaminated underground drinking water, the use of this water for irrigation enhances the possibility of arsenic uptake into crop plants. Rice is the staple food grain in Bangladesh. Arsenic content in straw, grain and husk of rice is especially important since paddy fields are extensively irrigated with undergro...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه ارومیه - دانشکده ادبیات و علوم انسانی 1394

the ability to speak two languages in the world is a remarkable achievement. there is a good reason to believe that bilingualism is the norm for the majority of people in the world because 70% of the earth’s population are supposed to be bilingual or multilingual. various investigations have shown that the native language impacts foreign word recognition, and this influence is adapted by the de...

Aroie, H. , Emami, H. , Nemati, ُS. H., Valizadeh Ghale Beig, A.,

Biochar reduces the bioavailability of a wide range of pollutants, especially heavy metals (HMs).To evaluate the effects of waste biochar of cutflower rose on growth characteristics and accumulation of lead (Pb) and cadmium (Cd) HMs of in lettuce, a factorial experiment, based on completely randomized design, with four replications was conducted. The amount of rose biochar at 3 levels (0, 5 and...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه سیستان و بلوچستان 1390

cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...

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

iv abstract this study examined the linguistic behaviors of two iranian efl teachers each of them teaching learners of two similar proficiency levels, a beginner level and an intermediate level, to investigate the relationship between the learners proficiency levels and the amounts and purposes for l1 use by the two teachers. the study was carried out to investigate whether there were differe...

2015
Bao-Fei Sun Qing-Qing Wang Zi-Jiang Yu Yan Yu Chao-Lun Xiao Chao-Sheng Kang Guo Ge Yan Linghu Jun-De Zhu Yu-Mei Li Qiang-Ming Li Shi-Peng Luo Dang Yang Lin Li Wen-Yan Zhang Guang Tian Robert Sutherland

High concentrations of arsenic, which can be occasionally found in drinking water, have been recognized as a global health problem. Exposure to arsenic can disrupt spatial memory; however, the underlying mechanism remains unclear. In the present study, we tested whether exercise could interfere with the effect of arsenic exposure on the long-term memory (LTM) of object recognition in mice. Arse...

2013
Ravuri Halley Gora Sushma Lalita Baxla Priscilla Kerketta Reetu Toppo Naveen Kumar Birendra Kumar Roy

Aim: The present investigation has been conducted to evaluate the protective activity of Tephrosia purpurea extract (TPE) against arsenic induced toxicity. Materials and Methods: For this study, twenty four wistar albino rats were taken. Control group, group – I rats were given sodium arsenite @ 10 mg/kg and group – II rats were treated with TPE @ 500 mg/kg along with sodium arsenite @ 10 mg/kg...

Journal: :دامپزشکی 0
زاهد محمدی دانشجوی کارشناسی ارشد تغذیه دام و طیور، پردیس ابوریحان، دانشگاه تهران شکوفه غضنفری استادیار گروه علوم دام و طیور، پردیس ابوریحان، دانشگاه تهران مسعود ادیب مرادی دانشیار دانشکده دامپزشکی، دانشگاه تهران

in this experiment two hundreds one day old broiler chicks (ross 308) in 5 treatments and 4 replicates were used based a completely randomized design. experimental treatments were: control treatment (basal diet), clove essential oil (ceo) at different levels (100, 300 and 500 mg/kg + basal diet) and 600 mg/kg flavophospholipol antibiotics (fpa) + basal diet. results showed that feed intake was ...

Journal: :The Science of the total environment 2006
Mingshi Wang Baoshan Zheng Binbin Wang Shehong Li Daishe Wu Jun Hu

The arsenic concentrations in 297 coal samples were collected from the main coal-mines of 26 provinces in China were determined by molybdenum blue coloration method. These samples were collected from coals that vary widely in coal rank and coal-forming periods from the five main coal-bearing regions in China. Arsenic content in Chinese coals range between 0.24 to 71 mg/kg. The mean of the conce...

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