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排序方式: 共有407条查询结果,搜索用时 15 毫秒
401.
Joshua Reno 《The journal of the Royal Anthropological Institute》2023,29(Z1):31-45
In conditions of post-welfare, failure takes a variety of forms. I offer an auto-ethnographic account of state-funded caregiving for people diagnosed with intellectual and developmental disabilities in New York State, where both caregiver labour and its management have been subjected to greater discipline as post-welfare initiatives seek to re-educate recipients of benefits and careworkers to be simultaneously more autonomous from and more accountable to the state. Placing these changes within the specific history of failed disability care in the United States, I explain how new disciplinary devices for reporting further alienate caregiver labour and complicate welfare management in practice. 相似文献
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Volker Muller Michael Blaut Reno Heise Christiane Winner Gerhard Gottschalk 《FEMS microbiology letters》1990,87(3-4):373-376
Abstract Recent investigations with Methanosarcina barkeri elucidated the role of sodium ions in the energy metabolism of methanogenic bacteria and provided evidence for a novel mechanism of energy transduction with Na+ as the coupling ion. During methanogenesis from methanol, an eletrochemical sodium gradient generated by a Na+ /H+ antiporter is used as the driving force for the thermodynamically unfavourable oxidation of methanol to the formal redox level of formaldehyde. During methanogenesis from H2 + CO2 , the reverse reaction, the reduction of formaldehyde to the level of methanol, is accompanied by a primary, electron transport-driven sodium extrusion. Acetogenesis from H2 + CO2 as carried out by Acetobacterium woodii is a sodium-dependent process and is accompanied by the generation of a transmembrane sodium gradient with the reduction of formaldehyde to the level of methanol as the sodium-dependent step. 相似文献
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The cloacal sacs of Leptotyphlops dulcis are nonglandular, posterior evaginations of the cloaca. The median cloacal gland is tubuloalveolar. Similar unpaired cloacal glands as well as paired sacs are noted in certain colubrid snakes. Terminology applied to these cloacal derivatives is discussed, and a standardization of names is provided. 相似文献
407.
Abstract In cell suspensions of Acetobacterium woodii the acetyl-CoA pathway is coupled to net ATP formation. Acetate formation as well as ATP synthesis and the generation of a transmembrane sodium ion gradient are not inhibited by protonophores but by sodium ionophores. Acetogenesis from CO or formaldehyde + CO as catalyzed by inverted vesicles is coupled to sodium ion uptake. Both processes are not inhibited by protonophores but by sodium ionophores. These experiments are in accordance with the presence of a primary sodium ion pump connected to the acetyl-CoA pathway which enables the cells to synthesize net ATP by means of a Δμ Na+ in concert with a Na+ -translocating ATPase. 相似文献