a brief study on the history of 20th century reveals that capitalist system has been facing to political, military and economic crisis including world wars i and ii, economic crisis of 1929 and 1973, economic crisis of southeast of asia in 90s and the current economic crisis. while theories of international political economy have in common with the occurrence of the crisis itself, they are diff...

or 20 years the so-called ‘‘sperm crisis’’ caused unrest among the public as well as the scientific community. Studies precipitated by this virtual crisis have refuted its existence, but have also illuminated hitherto neglected aspects of male reproductive function and indicated a need for prospective, long-term monitoring systems. Since 1992, the so-called ‘sperm crisis’ has lingered in the sc...

In pneumococcus pneumonia, a tendency to store excessive amounts of ingested salt and water during the acute stage and to excrete this excess following the crisis has been described by numerous observers (1 to 4). Another characteristic metabolic disturbance in this disease, noted by Farr et al. (5), is a depression of the plasma amino acid level, as measured by the ninhydrin technique (6), dur...

Cyanobacteria and cyanotoxins have been more and more studied during the last decades with regard to environment and health issues. More recently the consequences of climate change reinforced the need for research in view of a better management of cyanobacteria blooms. In this context the exploitation of the water quality survey of 26 recreational lakes in Brittany (north western France) betwee...

this paper examines the relationship between domestic water sources, demand and associated problems in the context of a rapidly increasing household population in nassarawa eggon town, nasarawa state, nigeria. the data for this research were generated using a questionnaire survey of systematically selected households, and analysed using descriptive statistics in the form of frequencies and perc...