نتایج جستجو برای: bio concentration factor

تعداد نتایج: 1243275  

Journal: :iranian journal of toxicology 0
سید محمود قاسم پوری seyed mahmoud ghasempouri department of environment, faculty of natural resources and marine sciences, tarbiat modares university, nour, iran نرجس اوکاتی narjes okati department of environment, faculty of natural resources, zabol university,zabol , iran عباس اسماعیلی ساری abbas esmaili-sari department of environment, faculty of natural resources and marine sciences, tarbiat modares university, nour, iran

background: mercury (hg) is a hazardous metal responsible for environmental contamination and human intoxication. methyl mercury bio-accumulation through food chain can be responsible for chronic mercury exposure of south caspian sea communities with a diet rich in fish. uncertainties about exposure levels that could have damaging consequences for nervous system development of infants makes bio...

Journal: :Jurnal Agronomi Tanaman Tropika (JUATIKA) 2022

Lettuce has great potential to be developed. However, the limited condition of agricultural land in Indonesia requires alternative for efficient cultivation systems that can maintain yield and growth lettuce plants. Therefore, carried out this study was on narrow with polybags using planting media top soil Alfisoll from Jamimo Village, Mariat District, Sorong Regency. Considering this, a conduc...

Journal: :Nucleation and Atmospheric Aerosols 2023

The kinetics of breaking and phenol extraction efficiency the bio-emulsion in liquid-liquid dispersed column are studied by varying bio-surfactant (lecithin) concentration, oil: water ratio, emulsification speed distributor nozzle. Among range parameters studied, maximum 79 % emulsion stability beyond 60 minutes is achieved at optimized conditions. compared with an prepared using Span-80. Even ...

2015
Trevor James Morgan Scott Q. Turn Anthe George Jorge Aburto

A reactor was designed and commissioned to study the fast pyrolysis behavior of banagrass as a function of temperature and volatiles residence time. Four temperatures between 400 and 600°C were examined as well as four residence times between ~1.0 and 10 seconds. Pyrolysis product distributions of bio-oil, char and permanent gases were determined at each reaction condition. The elemental compos...

Journal: :Brazilian Journal of Chemical Engineering 2021

The co-production of bio-char and upgraded bio-oil by fast pyrolysis raw sulfuric-acid pretreated agro-industrial wastes (corn cob, sugarcane bagasse sunflower seed hull) was investigated to valorize as sources value-added products (VAPs) following the circular bio-economy system. To this end, proximate elemental analyses were performed, adsorption properties determined in products. Bio-char yi...

Journal: :Environmental science and pollution research international 2011
Qin Lu Zhenli L He Donald A Graetz Peter J Stoffella Xiaoe Yang

BACKGROUND, AIM AND SCOPE Water quality impairment by heavy metal contamination is on the rise worldwide. Phytoremediation technology has been increasingly applied to remediate wastewater and stormwater polluted by heavy metals. MATERIALS AND METHODS Laboratory analysis and field trials were conducted to evaluate the uptake of metals (Al, Ca, Cd, Co, Cr, Cu, Fe, K, Mg, Mn, Na, Ni, Pb, and Zn)...

2018
Patricia De Vriendt Elise Cornelis Valerie Desmet Ruben Vanbosseghem Dominique Van de Velde

OBJECTIVE Professionals in dementia-care ought to be able to work within a Bio-Psycho-Social model. The objectives were to examine whether dementia-care is delivered in a Bio-Psycho-Social way, to explore the influencing factors and to evaluate the factorial validity of the 'Bio-Psycho-Social-Dementia-Care scale'. DESIGN AND SETTING 413 healthcare-professionals completed the 'Bio-Psycho-Socia...

Journal: :progress in biological sciences 2013
morahem ashengroph maryam borchaluei

there is a great call for using microbial bio-decaffeination approach to remove caffeinefrom caffeinated products and industrial wastes. we aimed in this study to screen strainsof yeasts which exhibit high caffeine tolerance and to investigate the bio-degradation ofcaffeine under growth conditions. sixteen yeast strains were isolated from the cultivatedtea soils collected from sites of northern...

Journal: :Japanese heart journal 1991
T Fukuchi A Kobayashi M Kaneko A Ichiyama N Yamazaki

The BIO 14.6 cardiomyopathic Syrian hamster is a well-known animal model of congestive cardiomyopathy. To evaluate the role of free radicals and antioxidant protection in the pathogenesis of cardiomyopathy in this animal, we studied the concentration of heart mitochondrial free radicals, the activities of glutathione peroxidase (GSHPx) and superoxide dismutase (SOD), and the effect of alpha-toc...

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