Timeline of the ancient mariners
نویسندگان
چکیده
منابع مشابه
Venereal Disease Imported by Mariners.
Over the years several investigations have been made into the nationality of patients attending the venereal diseases clinics of Great Britain by the British Cooperative Clinical Group (1956, 1963a, b). The results of these surveys are of special interest in inland areas where promiscuity is found especially in migrant immigrants, but at seaports peripatetic native and foreign mariners are equa...
متن کاملConsumption of addictive substances in mariners.
BACKGROUND For many years, studies have confirmed that there is a high prevalence of addiction amongst seafarers. The effect of this is even more serious when one considers their isolated and even hostile living environment presenting risks which require vigilance and rapid reactions. The purpose of this article is to determine the extent of knowledge about addiction among seafarers. MATERIAL...
متن کاملthe effect of taftan pozzolan on the compressive strength of concrete in the environmental conditions of oman sea (chabahar port)
cement is an essential ingredient in the concrete buildings. for production of cement considerable amount of fossil fuel and electrical energy is consumed. on the other hand for generating one tone of portland cement, nearly one ton of carbon dioxide is released. it shows that 7 percent of the total released carbon dioxide in the world relates to the cement industry. considering ecological issu...
Timeline: The Discovery of Elements
Assigning credit for the discovery of a new element is often a difficult and complicated process. First, many elements were in use well before recorded history. In some cases, these elements were known in the form of their compounds, but not as pure elements. Elements that fall into this category include carbon, copper, gold, iron, lead, mercury, silver, sulfur, tin, and, perhaps, zinc. In addi...
متن کاملThe effect of environmental factors on the location of ancient sites around the ancient northern lakes of the desert plain (Holocene)
Introduction Site selection of human habitats in pre-historic times, unlike the current periods, has been strongly influenced by natural factors. Studies may be focused on three areas including paleoclimate, paleogeomorphology and archeology in order to identify environmental factors affecting primary habitats. Based on studies, most of the ancient lakes in central Iran were formed during the Q...
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ژورنال
عنوان ژورنال: Nature Reviews Microbiology
سال: 2011
ISSN: 1740-1526,1740-1534
DOI: 10.1038/nrmicro2641