نتایج جستجو برای: well water

تعداد نتایج: 2000177  

2010
N. Lopez R. Tinelli

Apulia, in the absence of surface water, is one of the Italian regions which satisfy their water requirements by drawing large quantities (over 40%) of its water from underground resources. The large amounts drawn from these resources in the last few years due to increasing human activity on the territory has determined a general and inevitable reduction of the quality of the underground water ...

Journal: :SIAM J. Math. Analysis 2008
Qionglei Chen Changxing Miao Zhifei Zhang

In this paper, we prove the existence and uniqueness of the solutions for the 2D viscous shallow water equations with low regularity assumptions on the initial data as well as the initial height bounded away from zero.

Journal: :Water research 2005
Melinda L Erickson Randal J Barnes

Naturally occurring arsenic contamination is common in ground water in the upper Midwest. Arsenic is most likely to be present in glacial drift and shallow bedrock wells that lie within the footprint of northwest provenance Late Wisconsinan glacial drift. Elevated arsenic is more common in domestic wells and in monitoring wells than it is in public water system wells. Arsenic contamination is a...

Journal: :Journal of water and health 2011
Krystian Imgrund Reid Kreutzwiser Rob de Loë

Many private wells in the United States and Canada already are contaminated, or are at risk of contamination. Regular testing for pathogenic bacteria is one of the most concrete measures well owners can use to determine whether or not their drinking water quality is safe. This study explored the factors and causal relationships that influence well owner water quality testing behavior. In-depth,...

2008
Kris Freeman

Age is the most common risk factor for erectile dysfunction (ED), the consistent or recurrent inability to attain and/or maintain a penile erection sufficient for sexual performance. The correlation between age and ED is attributed to declines in testosterone levels; growing evidence links the condition to cardiovascular disease (CVD) as well. Now researchers from Taiwan have found a direct cor...

2009
Nicole M. Gatto Myles Cockburn Jeff Bronstein Angelika D. Manthripragada Beate Ritz

INTRODUCTION Investigators have hypothesized that consuming pesticide-contaminated well water plays a role in Parkinson's disease (PD), and several previous epidemiologic studies support this hypothesis. OBJECTIVES We investigated whether consuming water from private wells located in areas with documented historical pesticide use was associated with an increased risk of PD. METHODS We emplo...

2011
David M. Ambrose David P. Nicholls

The water wave equations of ideal free–surface fluid mechanics are a fundamental model of open ocean movements with a surprisingly subtle well–posedness theory. In consequence of both theoretical and computational difficulties with the full water wave equations, various asymptotic approximations have been proposed, analysed and used in practical situations. In this essay, we establish the well–...

Journal: :American journal of epidemiology 1996
S Cairncross P J Kolsky

Data collected in the late 1980s from eight countries in Sub-Saharan Africa (Burundi, Ghana, Togo, and Uganda), Asia/North Africa (Sri Lanka and Morocco), and the Americas (Bolivia and Guatemala) were combined and analyzed to test whether incremental health effects regarding diarrhea and nutritional status result from incremental improvements in water and sanitation conditions. Rural (n = 11,99...

2013
Salih KUK Süleyman YAZAR Süheyla DOĞAN Ülfet ÇETİNKAYA Çağrı SAKALAR

* Correspondence: [email protected]

2009
Tina Adler

Nanotechnology holds the promise of vastly expanding our ability to clean up hazardous waste sites and decontaminate polluted groundwater in situ. Polychlorinated biphenyls, organic solvents, petroleum products, arsenic, and many more contaminants are on the list that specifically engineered nanoparticles could rapidly remove from contaminated soil and water, saving billions of dollars that wou...

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