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Sheridan Kevin J. Duncan Elizabeth J. Eaton-Rye Julian J. Summerfield Tina C. 《Photosynthesis research》2020,145(2):111-128
Photosynthesis Research - The psbA gene family in cyanobacteria encodes different forms of the D1 protein that is part of the Photosystem II reaction centre. We have identified a phylogenetically... 相似文献
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Edward T. Pryor Gustave J. Goldmann Michael J. Sheridan Pamela M. White 《Ethnic and racial studies》2013,36(2):214-235
Measuring ethnicity in any society is a challenge. Given world immigration patterns, many countries face a growing dilemma in determining the cultural antecedents of their populations. A further complication is the reality that such determination occurs within the political and nationalistic settings where ethnic‐cultural groups may be potent forces in their own right. As societies mature and evolve, there is an increasing tendency for populations, especially those with many generations of residence in the country, to see themselves as ‘indigenous’ to the society in which they live. Canada is not alone in having to deal with the fluidity of the concept, ‘Canadian’, ‘American’, ‘Australian’, ‘Yugoslav’, and ‘Soviet’ are parallel concepts in other countries of multiple ethnic composition. Using 1991 National Census Test results, the article explores some of the parameters of the indigenous category ‘Canadian’. In particular, the location in Canada and mother tongue of respondents reporting ‘Canadian’ as the ethnic origin of their parents and grandparents or as their own ethnic identity are important indicators for this emerging ethnic category. 相似文献
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A.C. Holloway P.K. Reddy M.A. Sheridan J.F. Leatherland 《Biological Rhythm Research》2013,44(4):415-432
Abstract The diurnal patterns of changes in plasma cortisol, growth hormone (GH), somatostatin‐14 (SRIF), thyroid hormones (L‐thyroxine, T4 and triiodo‐L‐thyronine, T3) and glucose were investigated in rainbow trout, Oncorhynchus mykiss, both during single meal‐feeding and during a progressive fast of 13 weeks. All measured variables exhibited a diurnal pattern in fed rainbow trout, most of which appeared to be correlated with the time of feeding (30–60 min after the onset of light), while additional changes, associated with the scotophase were also found for cortisol. Although fasting had no affect on mean daily plasma cortisol or SRIF concentrations, there was a progressive increase in mean daily plasma GH concentrations and a progressive decrease in mean daily plasma thyroid hormone and glucose concentrations associated with fasting. However, for GH, significant changes were not evident until week 10 of the fast. In addition, fasting appeared to phase‐shift the diurnal patterns of plasma GH, cortisol and glucose concentrations; the consequence of such a shift is that conclusions as to the effects of fasting, if based on a single time of sampling, may be flawed. 相似文献
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An essential aspect of normal brain function is the bidirectional interaction and communication between neurons and neighbouring glial cells. To this end, the brain has evolved ligand–receptor partnerships that facilitate crosstalk between different cell types. The chemokine, fractalkine (FKN), is expressed on neuronal cells, and its receptor, CX3CR1, is predominantly expressed on microglia. This review focuses on several important functional roles for FKN/CX3CR1 in both health and disease of the central nervous system. It has been posited that FKN is involved in microglial infiltration of the brain during development. Microglia, in turn, are implicated in the developmental synaptic pruning that occurs during brain maturation. The abundance of FKN on mature hippocampal neurons suggests a homeostatic non-inflammatory role in mechanisms of learning and memory. There is substantial evidence describing a role for FKN in hippocampal synaptic plasticity. FKN, on the one hand, appears to prevent excess microglial activation in the absence of injury while promoting activation of microglia and astrocytes during inflammatory episodes. Thus, FKN appears to be neuroprotective in some settings, whereas it contributes to neuronal damage in others. Many progressive neuroinflammatory disorders that are associated with increased microglial activation, such as Alzheimer''s disease, show disruption of the FKN/CX3CR1 communication system. Thus, targeting CX3CR1 receptor hyperactivation with specific antagonists in such neuroinflammatory conditions may eventually lead to novel neurotherapeutics. 相似文献
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Bhupinder Pal Toula Bouras Wei Shi François Vaillant Julie M. Sheridan Naiyang Fu Kelsey Breslin Kun Jiang Matthew E. Ritchie Matthew Young Geoffrey J. Lindeman Gordon K. Smyth Jane E. Visvader 《Cell reports》2013,3(2):411-426
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Christopher W. Schmidt Ashley Remy Rebecca Van Sessen John Willman Kristin Krueger Rachel Scott Patrick Mahoney Jeremy Beach Jaqueline McKinley Ruggero D'Anastasio Laura Chiu Michele Buzon J. Rocco De Gregory Susan Sheridan Jacqueline Eng James Watson Haagen Klaus Pedro Da-Gloria Jeremy Wilson Abigail Stone Paul Sereno Jessica Droke Rose Perash Christopher Stojanowski Nicholas Herrmann 《American journal of physical anthropology》2019,169(2):207-226