نتایج جستجو برای: potassium chloride and cadmium uptake

تعداد نتایج: 16866702  

Journal: :Environmental science & technology 2008
Brian C Sanchez Hugo Ochoa-Acuña D Marshall Porterfield María S Sepúlveda

The detection of harmful chemicals and biological agents in real time is a critical need for protecting freshwater ecosystems. We studied the real-time effects of five environmental contaminants with differing modes of action (atrazine, cadmium chloride, pentachlorophenol, malathion, and potassium cyanide) on respiratory oxygen consumption in 2-day postfertilization fathead minnow (Pimephales p...

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

the present study was concerned with exploring the frequency and linguistic focus of corrective feedback types given by novice and experienced female teachers working with young learners and compared it with those of elementary classes for adults. moreover, it aimed at measuring learners’ acknowledgement of teachers’ corrective feedback in the form of uptake in relation to linguistic coverage o...

Journal: :Journal of environmental biology 2009
Shikha Chaudhary Yogesh Kumar Sharma

In the present study a novel approach has been made to evaluate the toxicity of cadmium in maize (Zea mays L. cv KJ9451) in terms of germination, seedling growth, pigment development and relevant enzyme activity and the possible remedial approach using potassium and copper to reduce cadmium toxicity. For the present investigations maize seeds were sown in petridishes on filter paper in triplica...

2003
JOYCE P. WILLS MARY F. ARRIGHI

Essential requirements for the maintenance of active uptake of sodium chloride in isolated frog skin in Ringer's solution are: sufficient oxygen supply (8); neutral or slightly alkaline reaction of Ringer's solution (10); a reasonable temperature, e.g. 25°C., of the environment (10). A few years ago it was found (11) that, in addition to the above mentioned factors, the K + level in Ringer's so...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه پیام نور - دانشگاه پیام نور استان تهران - دانشکده علوم انسانی 1392

abstract the present study deals with a comparison between reactive and pre-emptive focus-on-form in terms of application and efficiency. it was conducted in an intermediate english class in shahroud. 15 male learners participated in this research and their age ranged from 18 to 25. a course book, new interchange 3, and a complementary book were used. every session the learners gave lectures o...

2012
Nang-Hee Song Jae-Woong Koh

PURPOSE To investigate cadmium chloride cytotoxicity in human lens epithelial cells as well as the mode of cell death and its mechanism. METHODS Cultured human lens epithelial cells were challenged with cadmium chloride. Morphological changes of human lens epithelial cells caused by cadmium chloride exposure were evaluated by microscope. Cell viability was evaluated by the 3-(4,5-dimethylthia...

2012
T. MARAÑÓN J. M. MURILLO

le tI. Annual sweetcJover (Melilotus segetalis (Brot.) Ser. plants from the Guadalquivir salt marsh (S.W. of Spain) were grown in a glasshouse, on sandy soil with nutrient solution and four salt treatments (O, 10, ot 50 and 100 mM NaC!). Plants (five replicates per treatment and age) were harvested at 50, 90 and 120 ,1. days after germinatíon. Sodium, chloride and potassium were determined for ...

2015
Reetu Toppo Birendra Kumar Roy Ravuri Halley Gora Sushma Lalita Baxla Prabhat Kumar

AIM The present investigation has been conducted to evaluate the hepatoprotective activity of Moringa oleifera against cadmium-induced toxicity in rats. MATERIALS AND METHODS For this study, 18 Wistar albino rats were taken. Control group, Group I rats were given cadmium chloride @ 200 ppm per kg and Group II rats were treated with M. oleifera extract @ 500 mg/kg along with cadmium chloride @...

Heavy metals are a major environmental problem and have caused serious concerns because of characteristics of carcinogenesis, non-degradability and biological accumulation. Major part of this material is absorbed by plants and leads to inactivation of some enzyme, decreased protein production and disrupting variety of reactions and many cellular functions and growth and development cessation. T...

Journal: :Indian journal of physiology and pharmacology 2014
Venkappa S Mantur Manjunath S Somannavarib Saeed Yendigeri Kusal K Das Shivaprasad S Goudar

Cadmium is one among the most environmental pollutants that affects many organs like kidney, liver and testis. The present study was aimed to assess the simultaneous effects of black tea extracts (BTE) on cadmium chloride induced alterations in lipid profile and liver histology. Adult rats were divided into four groups (n=6/group), group I (normal saline), group II (CdCl2, 1.0 mg/kg, b.wt; i.p)...

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