The region of Chelghoum Laid - Tadjenanet is located in eastern Algeria, the high plains. This area characterized by a varied age (Mio-Plio-Quaternary) formations and human demand answered groundwater hosted into superficial aquifer Mio-Plio-Quaternary formations. However, overexploitation this leads to drop piezometric surface an increase salinity. salinity water. A hydrochemical study using c...

In recent years enterprise integration has become an important theme in information systems research and practice. Enterprise integration pervades enterprise resource planning (ERP), supply chain management (SCM), and customer resource management (CRM) systems and applications. However, much IS research in this area seems to assume that enterprise integration is inevitable and that enterprise i...

A real amplification of an initial enantiomeric excess can be detected when two amino acids are sublimed at high temperature, even if one of the components is a racemic compound that does not convert into a conglomerate by sublimation.

Spontaneously resolvable conglomerate crystals are obtained by combining racemic (rac)-1,1'-binaphthyl-2,2'-dicarboxylic acid and rac-1,2-diphenylethylenediamine, and this spontaneous resolution system is induced by water which is present in the crystallization solvent.

A 4.5 Ma record of fluvial and lacustrine deposits is well exposed at Gona, in the Afar Depression of Ethiopia. We use isotopic values of pedogenic carbonate and fossil teeth to reconstruct Plio^Pleistocene environmental change at Gona. An increase in N13C values of pedogenic carbonates since 4.5 Ma points to a shift from woodlands to grassy woodlands in the early Pliocene, 310.4 to 33.9x (VPDB...

Despite the abundance of well-preserved crania and natural endocasts in the South African Plio-Pleistocene cercopithecoid record, which provide direct information relevant to the evolution of their endocranial characteristics, few studies have attempted to characterize patterns of external brain morphology in this highly successful primate Superfamily. The availability of non-destructive penetr...

This paper investigates the effects of focus versus diversification on bank performance using data on Chinese banks during the 1996-2006 period. We construct a new measure, economies of diversification, and compare the results to those of the more conventional focus index, which is based on the sum of squares of shares in different products or regions. Diversification is captured in four dimens...