there is documented evidence that infection in laboratory animals can often influence the outcome of experiments. all infections, apparent or inapparent, are likely to increase biological variability. as a research project concerning the diversity and distribution of parasites of rabbit and guinea pig in a conventional laboratory animal house, about 87 rabbits (from 700 ) and 105 guinea pigs (f...

Introduction: To describe the underlay tympanoplasty technique using an acellular dermal graft(AlloDerm) for tympanic membrane (TM) reconstruction in a guinea pig model and to demonstrate the feasibility of the technique using AlloDerm tissue harvested from the prepuce as a source of tissue for future grafting in human TM reconstruction.   Materials and Methods: The prepuce was divided during c...

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Long time series of sea level and sea surface temperatures measured at different coastal stations along the northern coast of the Gulf of Guinea are analyzed statistically. The results indicate that pronounced fortnightly oscillations in sea level are composed of two waves: one is the lunar fortnightly tide Mf (13.661day period) which has a constant phase all along the coast. The other wave has...

Iraq’s agricultural sector represents a small, but vital component of Iraq’s economy. Over the past several decades agriculture’s role in the economy has been heavily influenced by Iraq’s involvement in military conflicts, particularly the 1980-88 Iran-Iraq War and the 1991 Gulf War, and by varying degrees of government efforts to promote and/or control agricultural production. In the mid-1980s...

Extensively used by US forces in Vietnam, the 1991 Gulf War, Kosovo and Afghanistan, and by Israel in the 1982 siege of West Beirut, cluster bombs have received severe condemnation from human rights and humanitarian organisations. There is consensus in the international community that these weapons are unacceptable and in breach of international humanitarian law, with many calling for a morator...

Onion (Allium Cepa) contains high levels of flavonoids. Although there are many studies indicating the inhibitory effects of flavonoids on xanthine oxidase, there is no report on the effect of onion on this enzyme. Therefore, in the present study, the inhibitory effects of onion on xanthine oxidase are investigated. Fresh filtered juice of onion was prepared and its inhibitory effect on guine...

Background: Fibroblast cell lines have different application in biological research including nuclear transfer in cloning, feeder layer of embryonic stem cells, wound healing research and tissue engineering. The objective of the present study was to determine the proper pregnancy age for collecting and culturing guinea pig fetal fibroblast. Materials and Methods: Guinea pig fetuses were collect...

The famous eclipse expedition of 1919 to Sobral, Brazil, and the island of Principe, in the Gulf of Guinea, led by Dyson, Eddington and Davidson was a turning point in the history of relativity, not only because of its importance as a test of Einstein's General Theory of Relativity, but also because of the intense public interest which was aroused by the success of the expedition. The dramatic ...