Several investigations have recently considered the possible impacts of climate change and seawater level rise on seawater intrusion in coastal aquifers. All have revealed the severity of the problem and the significance of the landward movement of the dispersion zone under the condition of seawater level rise. Most of the studies did not consider the possible effects of the seawater rise on th...

A simple, accurate, precise and sensitive HPLC method with UV detection was developed and validated to separate and detect lamivudine in human plasma using Stavudine as an internal standard.Lamivudine (3-TC) and Stavudine (internal standard) were extracted from human plasma using methanol protein precipitation and were chromatographed on a Phenomenex C18 (250X4.6mm.,5mμ particle size) column us...

An algorithm utilizing measured temporal tritium ( H) variation in selected Piedmont basins is 3 developed for the computation of subsurface residence times of shallow ground water comprising stream base flow. This algorithm accounts for the effects of radioactive decay, the mixing of shallow subsurface water with precipitation, and ground-water flux to streams (base flow). The input data requi...

A method is described for analysis of nickel in serum and heparinized blood. After the sample has been subjected to protein precipitation with nitric acid and heat, nickel in the protein-free extract is measured by electrothermal atomic absorption with Zeeman background correction. The method is more sensitive, rapid, and convenient than previous techniques, and less subject to nickel contamina...

Environmental tolerance of a species has been shown to correlate positively with its geographical range. On the Ordos Plateau, three Caragana species are distributed sequentially along the precipitation gradient. We hypothesized that this geographical distribution pattern is related to environmental tolerances of the three Caragana species during seed germination and seedling emergence stages. ...

Long-term investigations of soil moisture at different precipitation patterns in the black soil in Hailun county, Northeast China were made. This area is an important base for marketable grains production due to a short cultivation history, high soil organic matter content, and high yield potential. In this region, precipitation is the principal water source during the cropping season, hence so...

Global climate change is mostly characterized by temperature increase and fluctuating precipitation events, which may affect the spring phenology and mortality rate of insects. However, the interaction effect of temperature and precipitation on species performance has rarely been examined. Here we studied the response of the gall-making Tephritid fly Urophora stylata (Diptera: Tephritidae) to a...

In the literature, there exist contradictory conclusions on the South Asian summer monsoon (SASM) precipitation and circulation changes: whether the circulation change contributes positively by strengthening or negatively by weakening to the rainfall enhancement, on a background of moisture content increase. Based on Representative Concentration Pathway 4.5 simulations by 18 Coupled Model Inter...

Stream and riparian groundwater hydrology has been studied in a small intermittent stream draining a forested catchment for a system representative of a Mediterranean climate. The relationship between precipitation and stream runoff and the interactions between stream water and the surrounding riparian groundwater have been analysed under a wide spectrum of meteorological conditions. The hypoth...

Vegetable-protein concentrates may be divided, on the one hand, into conventional products such as legumes and oilseeds which may be eaten directly or after the extraction of commercially valuable oil and, on the other, non-conventional products such as the concmtrates produced from green leaves by pulping and protein precipitation, and edible products prepared from protein isolates. Such isola...