Aivars Spalvins

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The present study was designed to examine the kinetics of Na(+)-H+ exchange in red blood cells of normotensive and hypertensive subjects and its relation to the previously reported abnormalities in Na(+)-Li+ exchange. The Na(+)-H+ antiporter activation kinetics were studied by varying cell pH and measuring net Na+ influx (mmol/l cell x hr = units) driven by(More)
The hydrogeological model of Latvia will be established during 2010-2012. It will be used for management of drinking groundwater resources in order to implement standards of European Union Water Directives. The model will be created in environment of the commercial program Groundwater Vistas. It includes the broadly used software tools. The area to be(More)
Since 1993, the team of the Environment Modelling Centre (EMC) of the Riga Technical University is being active in the field of developing methodologies and special software for creating hydrogeological models (HM). In this paper, these tools applied together with commercial ones are described, on the example of complicated HM created for the Noginsk(More)
The countries of the world and of the European Union are developing hydrogeological models (HM) where, by means of computer modelling, the information necessary for the groundwater management is obtained. In 1996, Riga Technical University (RTU), upon assignment of the former State Geological Survey, established regional HM REMO for the central part of(More)
– In 2010–2012, the hydrogeological model (HM) of Latvia LAMO was established by scientists of Riga Technical University (RTU). The commercial program Groundwater Vistas (GV) is used for running LAMO. Efficient methods have been used for creating geometry of HM, the arrangement of various boundary conditions (digital terrain map, hydrographical network,(More)
In 2010–2012, the hydrogeological model (HM) of Latvia (LAMO) was developed by scientists of Riga Technical University (RTU). The model generalizes geological and hydrogeological information accumulated by the Latvian Environment, Geology and Meteorology Center (LEGMC). LAMO simulates the active groundwater zone that provides drinking water. The worldwide(More)
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