Zobrazeno 1 - 10
of 23
pro vyhledávání: '"J C, Powell"'
Publikováno v:
Journal of Electronics Manufacturing. :29-40
Autor:
J. C. Powell, R. K. Turner
Publikováno v:
Environmental Dilemmas ISBN: 9780412398001
Two important UK Government environmental initiatives have come to fruition in recent years: in September 1990 a major White Paper on the environment (This Common Inheritance) was published and in November 1990 the Environment Protection Bill went on
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::7e92f2ea6eb87b4b4deac1af25e1910f
https://doi.org/10.1007/978-0-585-36577-0_12
https://doi.org/10.1007/978-0-585-36577-0_12
Autor:
J. C. Powell, G. A. Clayton
Publikováno v:
British Poultry Science. 20:121-127
1. Live weight, food consumption, eviscerated carcass weight, breast muscle mass and ratios of these traits were measured in a strain of ducks of known pedigree. Heritabilities, genetic and phenotypic correlations were estimated for all traits. From
Publikováno v:
British Poultry Science. 15:153-158
Synopsis The percentage contents of fat, protein and mineral in eviscerated carcasses were determined at market age for a range of commercial table ducks. For fat determination the Soxhlet procedure using chloroform and freeze‐dried, powdered sampl
Publikováno v:
Animal Science. 33:299-304
Total teat number in a Large White and a British Landrace population had a modal number of 14. The trait was highly leptokurtic, indicated by the fact that 086 of the population falls within one standard deviation of the mean. There was no sex differ
Publikováno v:
Journal of Macromolecular Science: Part A - Chemistry. 10:223-244
The ability to effect profound changes in the growth and behavior of living systems through the application of minute quantities of biologically active compounds has lead to development of the multibillion dollar pest control industry. Indeed, the in
Publikováno v:
British Journal of Psychiatry. 153:689-692
A case of childhood affective disorder with episodes of depressive stupor in a 13-year-old pre-pubertal boy is described. Changes in the patient's clinical state were accompanied by changes in the dexamethasone suppression test. A family history of a
Autor:
J. C. Powell, J. C. Bowman
Publikováno v:
Animal Science. 4:319-327
1. Analyses of records of eight-week body weight in broiler chickens have been carried out to estimate the effect of management level (measured by mean body weight of all varieties on each farm) on the components of variance due to differences betwee
Autor:
J. C. Powell
Publikováno v:
Journal of Farm Economics. 32(4_Part_2):1076-1080
Autor:
J. C. Powell, J. C. Bowman
Publikováno v:
British Poultry Science. 12:511-528
Synopsis The aim of the experiment was to examine the efficiency of pedigreed random‐bred control populations. It was argued that it was difficult to achieve this aim by the study of the parameters of a single control population, but that a compari