منابع مشابه
Octopamine reverses the isolation-induced increase in trophallaxis in the carpenter ant Camponotus fellah.
Social deprivation is an unusual situation for ants that normally maintain continuous contact with their nestmates. When a worker was experimentally isolated for 5 days and then reunited with a nestmate, she engaged in prolonged trophallaxis. It is suggested that trophallaxis allows her to restore a social bond with her nestmates and to re-integrate into the colony, particularly via the exchang...
متن کاملDo Workers\' Remittances Matter for the Egyptian Economy?
Workers’ remittances constitute one of the most important sources of external finance for many developing countries. Although it shows a decreasing trend in recent years, Egypt after 1970s with her regular and massive labor migration to abroad has been still one of the gainer countries on remittances across the world. Empirical studies that implemented for various countries reveal workers’ ...
متن کاملCranial trepanation in The Egyptian.
INTRODUCTION Medicine and literature have been linked from ancient times; proof of this shown by the many doctors who have made contributions to literature and the many writers who have described medical activities and illnesses in their works. An example is The Egyptian, the book by Mika Waltari that provides a masterly narration of the protagonist's medical activity and describes the trepanat...
متن کاملNest volatiles as modulators of nestmate recognition in the ant Camponotus fellah.
When ants from alien colonies encounter each other the stereotypic reaction is usually one of aggressive behavior. It has been shown that factors such as queen-derived cues or nest-odors modulate this reaction. Here we examined whether nest volatiles affect nestmate recognition by observing the reaction of nestmates towards individual workers under one of four regimes: completely isolated; isol...
متن کاملThe eye in the Egyptian mummy.
ALTHOUGH the practice of mummification seems rather macabre and grotesque to modern man it was carried out in Ancient Egypt for a specific purpose. The intention was to preserve the body from the ravages of putrefaction, to maintain the identity of the dead man and, in later periods, to create a form which would resemble the embalmed God Osiris. The oldest preserved human bodies were not, in fa...
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ژورنال
عنوان ژورنال: Scientific American
سال: 1870
ISSN: 0036-8733
DOI: 10.1038/scientificamerican01291870-77