منابع مشابه
Microbes Which Help or Destroy Us
to detect the earliest disease in the maximum number of patients at least cost to the community. In conclusion, there is offered an ideal community program of eradication of tuberculosis-a disease which still claims 60,000 deaths annually in the United States. This small volume is very readable, authoritative, and well documented. It offers much of interest-and a challenge-to all charged with t...
متن کاملA case of dermatitis artefacta: Clues which help early diagnosis
A 26-year-old married female presented with a complaint of recurrent multiple ulcerative lesions on her body. After complete history and physical examination, a diagnosis of dermatitis artefacta was made. Dermatitis artefacta remains undiagnosed for quite some time because of its atypical skin changes, diverse methods used for producing skin lesions, lack of awareness about the disorder on the ...
متن کاملMicrobes can help explain the evolution of host altruism
The evolution of altruistic behaviour, which is costly to the donor but beneficial for the recipient, is among the most intriguing questions in evolutionary biology. Several theories have been proposed to explain it, including kin selection, group selection and reciprocity. Here we propose that microbes that manipulate their hosts to act altruistically could be favoured by selection, and may pl...
متن کاملMicrobes Can Damage but Also Help Restore Artifacts
F rom the prefabricated wooden huts of Antarctic explorers in the early 20th century to the enduring limestone ruins of the Mayan city Ek’ Balam (Black Jaguar) built more than 1,200 years ago (Fig. 1), conservators, archaeologists, and other specialists are striving to understand and combat the physical, chemical, and biological processes responsible for the deterioration of these historic stru...
متن کاملWhich Will Overcome? The Productivity or Risk Premium
The study investigates consumers’ preference for cowpea reflected in the Nigerian markets through price discounts and premiums that consumers pay for different cowpea characteristics. The price data used for this study were obtained through a market survey. A common data collection protocol was employed. Every month, between October 2009 to December 2010, five cowpea samples per seller were bou...
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ژورنال
عنوان ژورنال: American Journal of Public Health and the Nations Health
سال: 1942
ISSN: 0002-9572
DOI: 10.2105/ajph.32.3.327-a