家鸽左心室流出道电生理特性的观察

目的 :探讨 4-AP对家鸽左心室流出道组织动作电位的影响。方法 :利用细胞内微电极记录技术 ,观察 1 2例家鸽左心室流出道组织的电生理特征 ,以分析 4 -AP对家鸽左心室流出道的作用。结果 :在局部组织记录到典型的慢反应动作电位 ;用 2mmol/L 4 -AP灌流后 ,慢反应电位RP、APA、Vmax均明显下降 (P <0 .0 5) ,而APD、APD90 也显著延长 ;APD50 无明显改变 (P >0 .0 5)。结论 :家鸽左心室流出道组织不同于普通心室肌组织 ;4-AP对家鸽左心室流出道组织慢反应动作电位去极和复极离子流有明显抑制作用     

呼吸道阻塞致急性呼吸衰竭24例分析

目的 分析急性呼吸道阻塞致窒息的死亡原因,强调相应防治措施。方法 对24例急性呼吸道阻塞致窒息患者治疗结果及死亡原因进行临床分析。结果 能及时发现病情并解除窒息,则能成功地抢救患者生命,如未能及时发现,或抢救措施不当,则极易导致患者死亡。结论 及时发现急性呼吸道阻塞并解除窒息是成功抢救此类患者的关键。     

特色学术会议提升科技期刊品牌影响力的实践 ——以《中华消化外科杂志》为例

品牌是科技期刊一项重要的无形资产,是衡量科技期刊竞争力的重要标志。树立品牌科技期刊有利于凝练核心价值,提升期刊竞争力、影响力。科技期刊和学术会议都是科研工作者进行学术交流的主要方式,两者相互联系、相互补充。在当前国内科技期刊竞争激烈的形势下,借助学术会议来发展期刊,提升期刊影响力是一种行之有效的途径。本文以《中华消化外科杂志》为例,总结并分享其通过举办大型高端会议、靶向会议、平台系列会议等特色学术会议,提升期刊学术影响力、社会影响力、综合影响力,实施品牌战略的相关措施,旨在为科技期刊的品牌建设实践提供参考。     

浅析房屋买卖合同的成立、生效与履行

房屋买卖合同的成立、生效与履行是三个不同的阶段。正确区分这三个阶段才能明确合同的生效与合同所有权转移之间的关系以及房产转移登记的法律作用。这不仅具有重要的理论意义，而且具有重要的现实意义。     

从2005年我国女子田径成绩看与世界水平的差距

采用文献资料法、统计法、比较法对我国2005年全国女子田径前三名成绩与2005年世界田径总决赛前三名成绩(9月9号-10号摩洛哥)进行对比分析发现:短跑项目依然与世界水平有很大差距,重点应该放在跨栏项目上;长距离耐力项目处于世界高水平行列,但人数不多,应加强后备力量的培养;女子中长距离跑仍是我们的发展重点;铁饼发展势头较猛,应适当兼顾历史上曾经取得过优异成绩的女子铅球项目,作为我们的发展目标;我国田径跳跃项目是我国的潜优势项目,应重点发展,特别是跳远,与世界水平实力相当,应好好把握,发挥2008年奥运会的人和、地利等优势,争取取得更好成绩。     

浅谈学生群体冬季呼吸道传染疾病的预防

呼吸道传染疾病是冬季的多发疾病。大学生居住和学习环境相对集中,做好该类疾病的预防具有重要意义。本文针对呼吸道传染疾病的发生特点和有效可行的预防方法作了阐述。     

Return to play after acute infectious disease in football players

Abstract

Acute infectious diseases are common in athletes and can impair their ability to train and to compete. Furthermore, continuing exercise during infectious diseases may lead to prolongation or aggravation of illness with severe acute or chronic organ manifestations. Therefore, even simple infectious diseases require a sufficient period of convalescence and recovery, during which exercise may be not allowed. Nowadays, especially in professional football with high pressures on players, staff and clubs due to broad public interests as well as financial constraints, the return-to-play decision is of utmost significance. Based on previous suggestions and our own experience within amateur and professional athletes and football players, this article aims to give a short overview on return-to-play decisions after common acute infectious diseases in football players.     

目标性监测在留置导尿管相关感染中的作用

目的研究留置导尿管相关泌尿系感染(urinary tract infection,UTI)目标性监测是否降低尿路感染发生率,并分析其危险因素,为医院感染管理和控制提供科学的依据。方法采用目标性监测方法,对2011年所有住院患者发生导尿管相关泌尿系感染情况进行调查与分析。结果 769例留置尿管患者,发生泌尿系感染136例,感染率为17.69%,与去年相比感染率明显下降,监测发现感染与基础病、无菌操作、手卫生及导尿管留置时间有关;尿培养病原菌依次排列为:大肠埃希菌、粪肠球菌、金黄色葡球菌、铜绿假单胞菌、克雷柏杆菌、真菌等。结论临床上应严格掌握留置导尿的适应症,病情允许时尽可能缩短留置时间。同时,要严格无菌操作,做好导尿管的护理、定期更换导尿管及尿袋、合理使用抗生素,降低泌尿系感染的发生率。     

A simple and inexpensive enteric-coated capsule for delivery of acid-labile macromolecules to the small intestine

Understanding the ecology of the gastrointestinal tract and the impact of the contents on the host mucosa is emerging as an important area for defining both wellness and susceptibility to disease. Targeted delivery of drugs to treat specific small intestinal disorders such as small bowel bacterial overgrowth and targeting molecules to interrogate or to deliver vaccines to the remote regions of the small intestine has proven difficult. There is an unmet need for methodologies to release probes/drugs to remote regions of the gastrointestinal tract in furthering our understanding of gut health and pathogenesis. In order to address this concern, we need to know how the regional delivery of a surrogate labeled test compound is handled and in turn, if delivered locally as a liquid or powder, the dynamics of its subsequent handling and metabolism. In the studies we report on in this paper, we chose ¹³C sodium acetate (¹³C-acetate), which is a stable isotope probe that once absorbed in the small intestine can be readily measured non-invasively by collection and analysis of ¹³CO₂ in the breath. This would provide information of gastric emptying rates and an indication of the site of release and absorptive capacity. In a series of in vitro and in vivo pig experiments, we assessed the enteric-protective properties of a commercially available polymer EUDRAGIT®L100-55 on gelatin capsules and also on DRcaps®. Test results demonstrated that DRcaps®coated with EUDRAGIT®L100-55 possessed enhanced enteric-protective properties, particularly in vivo. These studies add to the body of knowledge regarding gastric emptying in pigs and also begin the process of gathering specifications for the design of a simple and cost-effective enteric-coated capsule for delivery of acid-labile macromolecules to the small intestine.     

高等学校财会制度改革论

从高等教育改革的目标和所处的市场经济环境的角度简要论述了高等学校现行的财务会计制度存在的不足，并且着重探讨了财会制度改革的主要思路、总体要求、会计科目的财会方法调整、财会报告调整等方面的内容。