Colloque 1999

Limnol. Oceanogr., 44(8), 1999, 1993–1999

We have examined the role of microbial communities on the surface of submersed macrophytes and in the underlying sediment for nitrification and denitrification in light and dark in NH -enriched microcosm systems using isotope 4 pairing and dilution techniques. Potamogeton pectinatus L. and intact sediment cores were collected in a shallow reservoir receiving treated municipal wastewater and con...

Limnol. Oceanogr., 44(8), 1999, 1999–2004

Uptake of atmospheric CO2 by the oceans and the export of carbon into deeper waters via the biological CO2 pump is driven by the production of particulate organic matter (POM). The elemental ratios of carbon, nitrogen, and phosphorus within POM follow Redfield ratios, suggesting that the concentrations of dissolved inorganic carbon (DIC) and nutrients decrease during new production correspondin...

شاخص آزادی اقتصادی سال 1999

Médecins érudits de Coray à Sigerist. Actes du colloque de Saint-Julien-en-Beaujolais (juin 1994)

The historiography of the history of medicine is still in its infancy, and these essays can thus all be commended for the new information they bring to bear on the lives if their subjects. They form a varied collection. Laennec, Sudhoff and Sigerist are familiar names to modem medical historians; Sprengel, de Renzi, Daremberg, and Haeser wrote major works, once standard and not entirely superse...

In 1999

Vladimir Marangozov kindly scanned, converted to text form with OCR, and made available the following document. Although the document was passed through a spelling checker, readers should be aware that there may be residual typographical errors arising from the OCR process. 2 Overview A property of a computer system that determines its ease of use and its range of applicability is the way it cr...