Výsledky vyhledávání - "P.A. Parsons"

Avoiding artefacts in oral biopsies: the punch biopsy versus the incisional biopsy

Autor: P.A. Parsons, I. Moule, G.H. Irvine

Publikováno v: British Journal of Oral and Maxillofacial Surgery. 33:244-247

Fifty oral biopsy specimens were removed, 24 with a punch and 26 by conventional incision with a scalpel. All specimens were routinely processed in the histopathology laboratory and examined for artefacts. Significantly fewer artefacts were found in

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a679631b87f1de90e5de36f6f0b11763
https://doi.org/10.1016/0266-4356(95)90010-1

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Morphological Stasis: an Energetic and Ecological Perspective Incorporating Stress

Autor: P.A. Parsons

Publikováno v: Journal of Theoretical Biology. 171:409-414

Conventional interpretations of morphological stasis are assessed in terms of energetic costs to organisms in their stressful environments. Assuming that the target of selection of such stress is at the level of energy carriers, this provides a reduc

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::54c210c0be439109f43ab505e9be4bf2
https://doi.org/10.1006/jtbi.1994.1244

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Radiation hormesis: an ecological and energetic perspective

Autor: P.A. Parsons

Publikováno v: Medical Hypotheses. 57:277-279

Organisms in natural habitats are exposed to an array of environmental stresses, which all have energetic costs. Under this ecological scenario, hormesis for ionizing radiation becomes an evolutionary expectation at exposures substantially exceeding

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::06069cd3cd1fd5d18903c54760f44431
https://doi.org/10.1054/mehy.2000.1240

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Behavioral Variability and Limits to Evolutionary Adaptation under Stress

Autor: P.A. Parsons

Publisher Summary Energy expenditure is a prerequisite for organisms to exist in any habitat, as exposure to biotic and especially abiotic stress is the norm in free-living populations. Therefore, the distribution and abundance of organisms can be re

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::7fcf949c6332f0dda7841160edeab696
https://doi.org/10.1016/s0065-3454(08)60364-2

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Resource utilization specificity in three cosmopolitanDrosophilaspecies

Autor: P.A. Parsons, G.J. Prince

Publikováno v: Journal of Natural History. 14:559-565

Summary D. immigrans of the subgenus Drosophila shows clear ecological differences in the laboratory and the field from the sibling species D. melanogaster and D. simulans of the subgenus Sophophora for the utilization of lemons as a resource. Since

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::0fee7b697ae124f4939f72f493aa8f13
https://doi.org/10.1080/00222938000770451

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