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EFFECT OF WATER CONTACTS SEASONALITY ON SCHISTOSOMIASIS TRANSMISSION IN RURAL SAHELIAN AREA IN BURKINA FASO

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Passive sampling of perfluorinated chemicals in water: Flow rate effects on chemical uptake

A recently developed modified polar organic chemical integrative sampler (POCIS) provides a means for monitoring perfluorinated chemicals (PFCs) in water. However, changes in external flow rates may alter POCIS sampling behaviour and consequently affect es ...

Elsevier2013

Cement and Concrete Research

Paul Bowen, Sandra Caroline Galmarini, Nicolas Ruffray

Experimental work has been done to determine changes in the particle shape of portlandite grown in the presence of different ions. To quantify the experimentally observed changes in morphology a new analysis tool was developed, allowing the calculation of ...

Elsevier2011

Catchment travel time distributions and water flow in soils

Andrea Rinaldo, Enrico Bertuzzo, Ludovico Nicotina, Gianluca Botter

Many details about the flow of water in soils in a hillslope are unknowable given current technologies. One way of learning about the bulk effects of water velocity distributions on hillslopes is through the use of tracers. However, this paper will demonst ...

2011

Fluorescence sensing of caffeine in water with polysulfonated pyrenes

Kay Severin, Sébastien Rochat

The commercially available fluorescence dye 8-hydroxypyrene-1,3,6-trisulfonate (HPTS) can be used as a selective molecular probe for the detection of caffeine in aqueous solution. ...

2011

Water: A key resource in energy production

Christoph Frei

Water and energy are the key resources required for both economic and population growth, and yet both are increasingly scarce. The distribution of water takes large amounts of energy, while the production of energy requires large amounts of water in proces ...

2009

Switch peptide via Staudinger reaction

Hilal Lashuel

A new transformation based on the Staudinger reaction is described, and its application in the design of a novel switch element to control peptide folding is demonstrated. We found that the azide switch is activated rapidly in water to promote acyl transfe ...

2008

Differences in the chlorine reactivity of four microcystin analogues

Urs von Gunten

The presence of microcystin toxins in drinking water is highly undesirable as they have the potential to adversely affect human health. Consequently, effective removal of these toxins from water is a major goal for water authorities. In this study, four mi ...

2006

Solar oxidation and removal of arsenic at circumneutral pH in iron containing waters

Urs von Gunten

An estimated 30-50 million people in Bangladesh consume groundwater with arsenic contents far above accepted limits. A better understanding of arsenic redox kinetics and simple water treatment procedures are urgently needed. We have studied thermal and pho ...

2001

Regional Water Balance as a Tool for Water Management in Developing Countries

Claudia Rebeca Binder Signer

The method of material flux analysis is applied as an instrument for the early recognition of environmental problems in an urban region of developing countries. It is shown that, even with poor data quality and quantity, it is possible to apply the method ...

1997