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81.
The anthropoid status of a primate from the late middle Eocene Pondaung Formation (Central Myanmar): tarsal evidence
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Marivaux L Chaimanee Y Ducrocq S Marandat B Sudre J Soe AN Tun ST Htoon W Jaeger JJ 《Proceedings of the National Academy of Sciences of the United States of America》2003,100(23):13173-13178
Primate dental and postcranial remains from the Eocene Pondaung Formation (Myanmar) have been the subject of considerable confusion since their initial discoveries, and their anthropoid status has been widely debated. We report here a well preserved primate talus discovered in the Segyauk locality near Mogaung that displays derived anatomical features typical of haplorhines, notably anthropoids, and lacks strepsirhine synapomorphies. Linear discriminant and parsimony analyses indicate that the talus from Myanmar is more similar structurally to those of living and extinct anthropoids than to those of adapiforms, and its overall osteological characteristics further point to arboreal quadrupedalism. Regressions of talar dimensions versus body mass in living primates indicate that this foot bone might have belonged to Amphipithecus. This evidence supports hypotheses favoring anthropoid affinities for the large-bodied primates from Pondaung and runs contrary to the hypothesis that Pondaungia and Amphipithecus are strepsirhine adapiforms. 相似文献
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目的:探讨持续质量改进(CQI)在维持性血液透析(MHD)患者肾性贫血治疗中的作用.方法: 通过横断面调查了解MHD患者肾性贫血情况,运用PDCA四步法制定CQI护理干预方案,实施CQI.结果: 在95例MHD患者中,CQI前后静脉铁剂使用率分别为38 9% vs 74.7%(P〈0.05),EPO使用率分别为83.2% vs 87.4%(P〉0.05);血红蛋白平均水平分别为(97.2±13.8)g/L vs (112.7±21.2)g/L(P〈0.01),血清铁蛋白分别为(128.3±56.2)μg/L vs (201.3 ±87.5)μg/L(P〈0.01),血红蛋白和血清铁蛋白达标率明显升高.结论:实施CQI可有助于提高MHD患者肾性贫血的治疗效果. 相似文献
84.
目的 探讨三专双向延续护理在空巢老年脑卒中患者康复中的应用效果。方法 选择2016年1月-2017年6月收住于我院的空巢老年脑卒中患者70例作为研究对象,采用随机数字表法将其分为实验组和对照组各35例,对照组接受常规延续护理,实验组接受三专双向延续护理,对2组干预后的各观察指标进行比较。结果 干预后,实验组院外康复行为依从性好于对照组(Z=-2.241,P=0.025),运动功能评定量表评分显著低于对照组(t=-3.836,P<0.001)。结论 对空巢老年脑卒中患者实施三专双向延续护理,可显著提高患者院外康复行为依从性,获得较好的功能结局。 相似文献
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Percy M Moalem S Garcia A Somerville MJ Hicks M Andrews D Azad A Schwarz P Beheshti Zavareh R Birkan R Choo C Chow V Dhaliwal S Duda V Kupferschmidt AL Lam K Lightman D Machalek K Mar W Nguyen F Rytwinski PJ Svara E Tran M Wheeler K Yeung L Zanibbi K Zener R Ziraldo M Freedman M 《Journal of Alzheimer's disease : JAD》2008,14(1):69-84
Dysregulation of iron homeostasis is implicated in Alzheimer's disease (AD). In this pilot study, common variants of the apolipoprotein E (APOE) and HFE genes resulting in the iron overload disorder of hereditary hemochromatosis (C282Y, H63D and S65C) were evaluated as factors in sporadic AD in an Ontario sample in which folic acid fortification has been mandatory since 1998. Laboratory studies also were done to search for genetic effects on blood markers of iron status, red cell folates and serum B12. Participants included 58 healthy volunteers (25 males, 33 females) and 54 patients with probable AD (20 males, 34 females). Statistical analyses were interpreted at the 95% confidence level. Contingency table and odds ratio analyses supported the hypothesis that in females of the given age range, E4 significantly predisposed to AD in the presence but not absence of H63D. In males, E4 significantly predisposed to AD in the absence of H63D, and H63D in the absence of E4 appeared protective against AD. Among E4+ AD patients, H63D was associated with significant lowering of red cell folate concentration, possibly as the result of excessive oxidative stress. However, folate levels in the lowest population quartile did not affect the risk of AD. A model is presented to explain the experimental findings. 相似文献
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Maipanich W Sato M Pubampen S Sanguankiat S Kusolsuk T Thaenkham U Waikagul J 《The Southeast Asian journal of tropical medicine and public health》2011,42(5):1065-1071
Sixty-eight residents of Ban Luang and Ban Pang Kae villages, in Nan Province, northern Thailand, visited our mobile field station in September 2006 and March 2007, seeking treatment for taeniasis. After treatment, 22 cases discharged tapeworm strobila in their fecal samples and 17 scolices were recovered. Among these, 3 were morphologically abnormal, with six suckers on the scolex. To confirm the species of these tapeworms, the mitochondrial cytochrome c oxidase subunit I (COI) gene was used as a molecular marker. The partial COI sequences (800 bp) of the abnormal tapeworms were identical to the sequences of Taenia saginata deposited in Genbank. 相似文献
90.
目的探索大学生对同性恋现象的真实态度。方法采用IAT内隐联想测验进行内隐态度测量,采用自编的"大学生同性恋态度问卷"进行外显态度调查。结果外显态度上88.9%的大学生接受同性恋或持中性态度,而内隐测量中88.9%的大学生排斥同性恋,两者出现分离现象(χ2=24.30,P0.001)。结论大学生对同性恋现象持有积极的外显态度,但也存在内隐偏见。 相似文献