The history of the NRC is approached from two perspectives: first, in terms of the historiographical ideas presented in the literature, and second, in terms of its place within the science policy debates. There follow a select chronology and bibliography of the NRC.

The typical life cycle of filamentous fungi commonly involves asexual sporulation after vegetative growth in response to environmental factors. The production of asexual spores is critical in the life cycle of most filamentous fungi. Normally, conidia are produced from vegetative hyphae (termed mycelia). However, fungal species subjected to stress conditions exhibit an extremely simplified asex...

In this study, the effect of varying dietary vitamin E levels on the oxidative stability, flavor, color, and volatile profiles of refrigerated and frozen turkey breast meat was examined. Nicholas turkey toms were reared on diets containing vitamin E levels as dl-alpha-tocopheryl acetate equivalent to the NRC recommendations (12 and 10 IU/kg from 0 to 8 and 9 to 18 wk, respectively) and 5x, 10x,...

Thirty postpubertal Holstein heifers were used to investigate the influence of dietary intake on 1) serum concentrations of progesterone (P4) and luteinizing hormone (LH) during diestrus and 2) estrous behavior. Heifers were randomly allotted to receive either 80, 100 or 120% of the National Research Council (NRC) requirements for energy, protein and dry matter intake for 139 d. Heifers were fe...

the effect of feeding different protein profiles on growth performance, carcass components and nitrogen content of litter in cobb 500 broiler strain was evaluated using 800 chicks in a completely randomized design with four treatments, five replicates groups of 40 birds per each treatment. the treatments were consisted of four protein feeding profiles (based on cobb strain nutrition guide, reco...

Many pathogenic bacteria secrete $-lactamase enzymes as a mechanism of defence against $-lactam antibiotics. A new Streptomyces sp., NRC-77, was isolated from an Egyptian soil sample. The NRC-77 strain has biochemical, chemotaxonomic, morphological and physiological properties consistent with classification in the genus Streptomyces, with the nearest species being Streptomyces rochei. Furthermo...

In 2000, the National Research Council (NRC), an arm of the National Academy of Sciences, released a report entitled, "Toxicological Effects of Methylmercury." The overall conclusion of that report was that, at levels of exposure in some fish- and marine mammal-consuming communities (including those in the Faroe Islands and New Zealand), subtle but significant adverse effects on neuropsychologi...

In 2001 a directive was issued to establish the National Rehabilitation Centre (NRC) to deal with the growing problem of substance misuse in the United Arab Emirates. The NRC has achieved many goals as a treatment and rehabilitation facility as well as a drug and alcohol demand reduction response centre. It is now working towards being an international centre of excellence.

The 2002 NRC Report Bio2010 (NRC, 2003), calling for changes in undergraduate education for biologists, suggested the establishment of summer workshops to help implement reform. While the report was in press, Millard Susman, a retired genetics professor at the University of Wisconsin, Madison, and Bob Yuan, a professor at University of Maryland—College Park who also works as a consultant for th...

Present study was conducted to assess the efficacy of Escherichia Coli derived phytase alone or with citric acid (CA) given inorganic phosphorus (P) free broiler diet. Ninety six one-day old COBB-500 male broilers were divided into four groups and fed one following diets for a period 35 days: positive control (PC) diet formulated based on NRC (1994) recommendations, negative (NC) (inorganic P d...