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991.
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为了探索影响农村绝经后妇女性生活满意度的因素,从而为开展老年妇女保健提供科学依据,笔者于2012年3—8月采用多阶段随机抽样方法对重庆市5个区县农村绝经后妇女采用统一方法进行问卷调查和体检。结果显示,重庆市农村绝经后妇女对目前性生活满意和不满意的分别占83.7%和16.3%。单因素分析显示,绝经后妇女性生活满意度与其婚姻状况、文化程度、家庭收入、家庭结构、是否患有妇科疾病、最近两周是否有生殖道不适、起居方式、是否需要性生活、性生活频率、老年性保健知识、自觉体力状态及自觉生活状态等12个变量有关(P0.05);多因素Logistic回归分析显示,分居方式(比值比(OR)=1.711,95%置信区间(CI)为1.334~2.194)、性生活频率高(OR=1.694,95%CI为1.334~2.152)、自觉体力状态差(OR=1.281,95%CI为1.018~1.613)是危险因素,家庭收入高(OR=0.651,95%CI为0.512~0.826)和既往有妇科疾病(OR=0.689,95%CI为0.486~0.977)是保护因素。因此,农村存在多种影响绝经后妇女性生活满意度的相关因素,应重视对绝经后妇女的性教育,改善她们的生活质量。 相似文献
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Donglin Ma Mengxi Liu Teng Gao Cong Li Jingyu Sun Yufeng Nie Qingqing Ji Yu Zhang Xiuju Song Yanfeng Zhang Zhongfan Liu 《Small (Weinheim an der Bergstrasse, Germany)》2014,10(19):4003-4011
The segregation of carbon from metals in which carbon is highly soluble, such as Ni (≈1.1 atom% at 1000 °C), is a typical method for graphene growth; this method differs from the surface‐catalyzed growth of graphene that occurs on other metals such as Cu (<0.04 atom%). It has not been established whether strictly monolayer graphene could be synthesized through the traditional chemical vapor deposition route on metals where carbon is highly soluble, such as Pd (≈3.5 atom%). In this work, this issue is investigated by suppressing the grain boundary segregation using a pretreatment comprising the annealing of the Pd foils; this method was motivated by the fact that the typical thick growths at the grain boundaries revealed that the grain boundary functions as the main segregation channel in polycrystalline metals. To evaluate the high crystallinity of the as‐grown graphene, detailed atomic‐scale characterization with scanning tunneling microscopy is performed. 相似文献
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计量是国民经济机构中的技术结构之一,它被广泛应用于科学研究、国防建设、工农业生产、国内外贸易和医疗卫生及人民生活等各个领域并发挥着重要作用。 相似文献
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Multiwall Carbon Nanotubes Directly Promote Fibroblast–Myofibroblast and Epithelial–Mesenchymal Transitions through the Activation of the TGF‐β/Smad Signaling Pathway 下载免费PDF全文
Peng Wang Yue Wang Xin Nie Céline Braïni Ru Bai Chunying Chen 《Small (Weinheim an der Bergstrasse, Germany)》2015,11(4):446-455
A number of studies have demonstrated that MWCNTs induce granuloma formation and fibrotic responses in vivo, and it has been recently reported that MWCNT‐induced macrophage activation and subsequent TGF‐β secretion contribute to pulmonary fibrotic responses. However, their direct effects against alveolar type‐II epithelial cells and fibroblasts and the corresponding underlying mechanisms remain largely unaddressed. Here, MWCNTs are reported to be able to directly promote fibroblast‐to‐myofibroblast conversion and the epithelial–mesenchymal transition (EMT) through the activation of the TGF‐β/Smad signaling pathway. Both of the cell transitions may play important roles in MWCNT‐induced pulmonary fibrosis. Firstly, in‐vivo and in‐vitro data show that long MWCNTs can directly interact with fibroblasts and epithelial cells, and some of them may be uptaken into fibroblasts and epithelial cells by endocytosis. Secondly, long MWCNTs can directly activate fibroblasts and increase both the basal and TGF‐β1‐induced expression of the fibroblast‐specific protein‐1, α‐smooth muscle actin, and collagen III. Finally, MWCNTs can induce the EMT through the activation of TGF‐β/Smad2 signaling in alveolar type‐II epithelial cells, from which some fibroblasts involved in pulmonary fibrosis are thought to originate. These observations suggest that the activation of the TGF‐β/Smad2 signaling plays a critical role in the process of the fibroblast‐to‐myofibroblast transition and the EMT induced by MWCNTs. 相似文献
999.
Spontaneous calf hematoma in a patient with diabetic nephropathy receiving maintenance hemodialysis: A case report and review of the literature 下载免费PDF全文
Li Xiao Fengxia Ling Lihua Tan Huabing Li Chun Hu Ying Luo Dang Tang Fuyou Liu Yashpal S. Kanwar Lin Sun 《Hemodialysis international. International Symposium on Home Hemodialysis》2015,19(4):E49-E53
We report the outcome of a 52‐year‐old patient with diabetic nephropathy and receiving maintenance hemodialysis (HD) using low molecular weight heparin (LMWH) as an anticoagulant for 2 years. He presented right lower limb pain accompanied with difficulty in walking for 2 months, and had no history of bleeding tendency or trauma. Physical examination revealed marked swelling and tenderness on his right lower limb. By ultrasound and magnetic resonance imaging (MRI) diagnoses, the calf hematoma was diagnosed and identified with venous thrombosis. Following treatment with heparin‐free HD, the swelling regressed and pain subsided, and a follow‐up MRI showed complete dissolution of hematoma. However, similar symptoms recurred in the right upper limb after 2 months without any predisposition, he was just placed on HD with LMWH, and symptoms regressed following the aforementioned therapy. This suggests that HD patients, especially with diabetic nephropathy having extremity hematoma, should be watched for the development of spontaneous hemorrhage that can be differentially diagnosed by imaging tests, such as MRI, and can be effectively treated with heparin‐free HD. 相似文献
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