While millions of people drink arsenic-contaminated tube well water across Bangladesh, there is no recent scientific explanation which is able to either comprehensively explain arsenic mobilization or to predict the spatial distribution of affected wells. Rather, mitigation strategies have focused on the sinking of deep tube wells into the currently arsenic-free Pleistocene aquifer. In this stu...

Understanding causal regularities in the world is a key feature of human cognition. However, the extent to which non-human animals are capable of causal understanding is not well understood. Here, we used the Aesop's fable paradigm--in which subjects drop stones into water to raise the water level and obtain an out of reach reward--to assess New Caledonian crows' causal understanding of water d...

BACKGROUND Magnetized water has made many improvements in industry, agriculture and medicine. However its utilization in medicine still remains controversial. OBJECTIVE In this study we aimed to investigate the effects of magnetized water on height of epithelial cells in pre-implantation stage endometrium and fallopian tube and number of corpus lutea in female mice. MATERIALS AND METHODS Ei...

Experts are making a major effort to find technical solutions to the serious public health problems posed by arsenic in drinking water in Bangladesh, but public education strategies receive less systematic attention. This article presents the findings of a study evaluating the impact of a 1999 campaign by the 18 District Towns Project to educate the public about the arsenic problem in six Bangl...

Two-phase heat transfer is experimentally examined through vertical small diameter tubes, D =1.45 and 2.8 mm using water under a pressure of 50 to 81 kPa and a natural circulation condition. The pool boiling correlation by Stephan-Abdelsalam and the thermosyphon boiling correlation by Imura, et al. predict the measured experimental data in the 2.8 mm tube with an error of -30%. A large heat tra...

the adsorption study was conducted on three japanese soils with different soil properties to characterize the adsorption pattern of arsenic (as). double tube method was used to find out the effect of soil moisture levels on as adsorption. for this study, besides double tube method, conventional batch method also was used. the as adsorption showed two phase kinetics. an initial and rapid adsorpt...

The removal of Arsenic from well water by co-precipitation with indigenous Iron was studied in 4 villages of West Bengal, India. A correlation exists between concentrations of Arsenic and Iron, and the Fe/As ratio (W/W) present was above 10 in all of the studied tube wells. The Arsenic concentration was in the range of 0-220 μg/l. The study showed that the actual risk of getting various cancers...

This work concerns dryout experiments in which a tube, initially containing water, filled up or partially filled and at 1,2 or 3 atmosphere pressures, is heated. The initial water column experience three thermal regions. The first region, called the first period, involves heating of the tube until saturation conditions are obtained in the water. Boiling of the water in the tube causes swelling ...

The adsorption study was conducted on three Japanese soils with different soil properties to characterize the adsorption pattern of Arsenic (As). Double tube method was used to find out the effect of soil moisture levels on As adsorption. For this study, besides double tube method, conventional batch method also was used. The As adsorption showed two phase kinetics. An initial and rapid adsorpt...

OBJECTIVE To investigate the microbiological quality of well water in the Kalutara district. METHOD A retrospective analysis was carried out of reports on water samples taken from tube wells, protected wells and unprotected wells in Kalutara district in 2007. Information was obtained from laboratory registers and request forms. RESULTS In 2007, the microbiological quality of 185 samples of ...