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排序方式: 共有473条查询结果,搜索用时 15 毫秒
451.
Ophioglossum yongrenense Ching ex Z. R. He et W. M. Chu, sp. nov.Species nova aspectu inter O. kawamuram Tagawa et O. parvum Nishida et Kurita Japonicae, differt a priore frondibus pro parte laminis sterilibus praeditis (in illa frondibus omnino laminis sterilibus non praeditis), a posteriore frondibus pro parte laminis sterilibus non praeditis (in O. parvo Nishida et Kurita frondibus omino laminis sterilibus praeditis).…… 相似文献
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Ling-Jia Hu Jocelyn Laporte Petra Kioschis Sandra Heyberger Christine Kretz Annemarie Poustka Jean-Louis Mandel N. Dahl 《Human genetics》1996,98(2):178-181
We have recently refined the localization of the myotubular myopathy (MTM1) gene to a 430-kb region between DXS304 and DXS1345
in proximal Xq28. We report two new polymorphic microsatellite markers, DXS8377 and DXS7423, that were physically mapped within
the critical interval. A recombination event in a family segregating for MTM1 placed the disease gene telomeric to the trinucleotide
polymorphism DXS8377. Together with the recent mapping of two microdeletions associated with MTM1, the recombination refines
the critical region to 280 kb. A second recombination event was observed distal to the tetranucleotide repeat DXS7423. This
recombination has occurred in the offspring of a female with a more than 67% probability of being a carrier and very likely
restricts the MTM1 gene to a 130-kb region. This physical refinement is significant for positional cloning of the disease
gene. The highly polymorphic markers and the precise localization of the MTM1 gene will facilitate genetic diagnosis of the
disorder.
Received: 22 February 1996 / Revised: 18 March 1996 相似文献
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The present study was conducted primarily to determine the occurrence of polypharmacy in patients with schizophrenia on risperidone. The secondary aim was to ascertain the incidence of inappropriate prescribing with anticholinergics. A retrospective review of the medical records of all patients who were being followed up at the out-patient clinic of a tertiary-care hospital in Malaysia was conducted. Only patients who were being prescribed risperidone between 1 June 2008 and 31 December 2008 were included in the study. Demographic data such as patient’s age, gender and race were obtained from the patient’s medical records. In total, 113 patients met the selection criteria. Polypharmacy was found to occur in 34 patients (30.09%), with the majority (76.47%) being on two antipsychotics. In total, 27 patients (34.18%) on monotherapy with risperidone were prescribed an anticholinergic on scheduled dosing, while 19 patients (24.05%) were prescribed it on an as-needed basis. Of the patients on polypharmacy, 26 (76.47%) were on scheduled dosing of anticholinergics, while three (8.82%) were taking the medication on an as-needed basis. Polypharmacy should be avoided, and the use of anticholinergics should be closely reviewed. By adopting more efficient prescribing practices, costs can be reduced and financial resources can instead be channelled towards more beneficial areas for the patients. 相似文献
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L F Laporte 《American journal of physical anthropology》1991,84(1):1-16
The influence of George Gaylord Simpson (1902–1984) on paleoanthropology provides a well-documented, historical example of how one scientific discipline can impact upon another, bringing the latter quickly “up to speed” without having to retrace ground covered by the former. Paleoanthropologists were bystanders during the formulation of the evolutionary synthesis (1936–1947). After World War II, the younger paleoanthropologists looked to George Gaylord Simpson as one of several mentors regarding the implications of the synthesis for their own discipline. But why Simpson? Having earlier defined the superfamily Hominoidea (1931) as holding the Pongidae and Hominidae and monographed lower primate fossils (e.g., “Studies on the earliest primates,” 1940), Simpson's “Principles of classification and a classification of mammals” (1945) further solidified his reputation as a mammalian systematist. Simpson's Meaning of Evolution (1949) was widely read as an introduction to the synthesis, and his Tempo and Mode in Evolution (1944) made accessible the more complex aspects. Consequently, in the 1950s and 1960s paleoanthropologists invited Simpson to participate in their symposia (e.g., “Some principles of historical biology bearing on human origins,” 1951; “The meaning of taxonomic statements,” 1964), used his books as classroom texts, and cited his publications to support claims for their own work. Later in the 1960s, Simpson moved from mentor to apologist, as the paleoanthropologists were by then familiar with the synthesis and incorporated its theoretical concepts in their interpretations of the many newly discovered hominoid fossils. Simpson now took special care to celebrate these results in his more general, less technical writings, acting as a forceful apologist for the materialistic view of human origins (e.g., “The biological nature of man,” 1966; “The evolutionary concept of man,” 1972). During the 1970s, Simpson's influence waned, and he became just another practitioner at the margin of the discipline. However, anthropologists acknowledged Simpson's earlier impact, for example, when he was invited, yet again, to address them at the 50th anniversary celebration of the American Association of Physical Anthropologists in 1981. 相似文献
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