The mitochondrial DNA (mtDNA) haplogroups of 54 full-blooded modern and 64 ancient Native Americans from northwestern North America were determined. The control regions of 10 modern and 30 ancient individuals were sequenced and compared. Within the Northwest, the frequency distribution for haplogroup A is geographically structured, with haplogroup A decreasing with distance from the Pacific Coa...

background: the south-southern zone of nigeria is one of the zones in the country that has reported consistent high prevalent rates of hiv/aids pandemic in the last decade. in spite of bio-medical reasons adduced for the spread of the pandemic, socio-cultural factors may be major issues in the access to both prevention and treatment services especially for women. hence, this study investigated ...

background: in view of the massive rural-to-urban migration in nigeria, investigations on transmission of urinary schistosomiasis were carried out in ur-ban and semi-urban communities in nike lake area of enugu state, nigeria. methods : urine samples of school children were tested for micro-haematuria using reagent strips followed by microscopic examination for schistosoma haematobium eggs. wat...

background: intestinal helminths in dogs provide a potential source of infection in humans due to the close contact be­tween humans and dogs. due to the limited information on parasites infecting dogs in kaduna state, nigeria, a cross sec­tional study was conducted with the aim of determining the diversity and prevalence of intestinal helminths of dogs in the area. methods: during the survey, 1...

this study used the partial least squares (pls) approach to examine the effect of corporate reputation on the customer loyalty of the food and beverages industry in nigeria. the data for this study were collected from the customers in kano state nigeria. out of 250 distributed questionnaires, 212 usable questionnaires were returned. before examining the effect of corporate reputation on the cus...

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...

poverty is the most serious threat to natural resources and the environment and most of the poor are rural-based who engage in various agricultural activities. land is a critical asset for the rural poor and lacking means to appropriately intensify agriculture which compels the poor to either overuse or misuse this natural resource base to meet basic needs. this study presents empirical relatio...