the intestinal parasitic infection is one of the major health problems in northern parts of iran, especially in rural areas. in order to determine the prevalence of intestinal parasites and the effect of some factors such as age, sex, region on the prevalence of intestinal parasites, a study was carried out in rural areas of tonekabon, caspian littoral, from jul. 1991 to feb. 1992. a total of 2...

Remote measurements of different environmental parameters received during last 30 years are used for the synthesis of a Complex Simulation Model (CSM) describing the combined water regimes of the Aral-Caspian System (ACS) including the consideration of aquatic and climatic natural processes. The problem of stabilizing the sea levels of these two water bodies is modelled and a solution obtained ...

This memo addresses the general prospects for Russia's policy in the Caspian Sea, particularly in light of the ongoing financial crisis and domestic political turmoil. After touching on uncertainties regarding the Caspian's significance as a source of hydrocarbon reserves, I will consider Russia's evolving policy preferences and diplomatic relations, environmental issues, and the broader politi...

  Littoral cell angioma is a splenic vascular tumor of splenic sinus lining cells that is considered benign in general. This report describes a case of littoral cell angioma with no malignant histological features. The lesion is composed of anastomosing vascular channels resembling splenic sinus; they are lined by endothelial cells which show mitotic activity very rare. Immunohistochemically, ...

Macrophytes are important sources of dissolved organic carbon (DOC) to littoral zones of lakes, but this DOC is believed to be mostly refractory to bacteria, leading to the hypothesis that bacterial metabolism is different in littoral and pelagic zones of a large subtropical shallow lake. We tested this hypothesis by three approaches: (I) dissolved inorganic carbon (DIC) accumulation in littora...

Three areas in the world have a high prevalence of cancer of the oesophagus. Two lie at the extremes of the old silk routes pioneered by Marco Polo around the shores of the Caspian Sea in northern Iran and in the Henan and Shanxi provinces of China. The third area, with the highest prevalence, is the Homeland state of Transkei in South Africa. Cancer of the oesophagus here is 14 times more comm...

The present study was carried out in Lake Dom Helvécio, in the state of Minas Gerais, with two main objectives: to demonstrate the contribution of the littoral zone, in order to better characterize zooplankton fauna; and to assess the distribution of zooplankton species in different habitats, i.e., the littoral zone with and without aquatic vegetation. The samples were collected in February and...

Three areas in the world have a high prevalence of cancer of the oesophagus. Two lie at the extremes of the old silk routes pioneered by Marco Polo around the shores of the Caspian Sea in northern Iran and in the Henan and Shanxi provinces of China. The third area, with the highest prevalence, is the Homeland state of Transkei in South Africa. Cancer of the oesophagus here is 14 times more comm...