This study reassessed Schwartz and Dockery's analysis of daily mortality from nonexternal causes among residents of Philadelphia, Pennsylvania, over 8 years, from 1973 to 1980 [American Review of Respiratory Disease 145:600-604 (1992)]. A Poisson regression analysis using the same model found that a 100-microg/m(3) increment in the 48-hr mean concentration of total suspended particulates (TSP) ...

Most statistical and mechanistic models used to predict mosquito-borne disease transmission incorporate climate drivers of disease transmission by utilizing environmental data collected at geographic scales that are potentially coarser than what mosquito populations may actually experience. Temperature and relative humidity can vary greatly between indoor and outdoor environments, and can be in...

Effects of contrasting climatic conditions and nitrogen (N) deposition levels on streamwater N dynamics are assessed at two small heathland catchments; Dalelva in northern Norway (69oN) and Øygard in southwestern Norway (58oN). The study comprises 11 years of data on climate, hydrology and N inputs/outputs from Dalelva and 8 years of corresponding data from Øygard. Both sites are comparable in ...

Anthropogenic and industrial activities triggering an alteration on the natural cadmium nitrogen cycle are deliberated as one among most vital environmental concerns. Water quality index (WQI) skewness, nitrate was 8.37 ± 1.014 in dry season 3087.87 1.150 for wet season, but 0 1.559 zero all through sunny period. Equating results with World Health Organization (WHO) permissible limits, it disco...

Evapotranspiration (ET) may account for up to 70% of the annual precipitation even in humid region. Understanding ET is essential management water resource, crop requirement as well irrigation designs/scheduling etc. Therefore, this study tries analyze potential over Enugu State using meteorological data from weather stations and compared results obtained with that satellite remote sensed techn...

Based on a great number of literatures, we established the database about the Chinese endemic seed plants and analyzed the compositions, growth form, distribution and angiosperm original families of them within three big natural areas and seven natural regions. The results indicate that the above characters of Chinese endemic plants take on relative rule at the different geographical scales. Am...

The timing and abruptness of the initiation and termination of the Early Holocene African Humid Period are subjects of ongoing debate, with direct consequences for our understanding of abrupt climate change, paleoenvironments, and early human cultural development. Here, we provide proxy evidence from the Horn of Africa region that documents abrupt transitions into and out of the African Humid P...

this study was conducted using one hundred and eighty (180) day-old broiler chicks, of anak strain to assess the levels of inclusion of indomie waste meal as a substitute for maize at 0, 25, 50, 75 and 100%. the birds were randomly assigned to dietary treatments using completely randomized design (crd). each treatment contained 3 replicates and each replicate had 6 birds. the study lasted for e...

The effects of water stress on leaf water relations and growth are reported for three perennial tussock grass genotypes under glasshouse conditions. Studies were performed in genotypes El Palmar INTA and Selección Anguil of Agropyron scabrifolium (Döell) Parodi, and El Vizcachero of A. elongatum (Host) Beauv. Agropyron scabrifolium El Palmar INTA is native to a region with warm-temperate and hu...