基于CAN总线的医疗呼叫系统设计

本文采用单片机与CAN总线技术设计了基于CAN总线的医疗呼叫系统。系统能够采集病房内呼叫信号,通过CAN总线传输给医护室,实现医护室与病房区的互联通信,设计中解决了远端按键信号传输问题,以及系统的低功耗,具有经济实用的特点。实际使用表明,该系统可靠性高,功耗低,安装方便,具有很强的实用价值。     

Natural polymers as alternative consolidants for the preservation of waterlogged archaeological wood

In recent years, there has been increased interest in examining alternative polymers for the conservation of archaeological artefacts, particularly waterlogged timbers, providing better, renewable, greener alternatives to poly(ethylene glycol) (PEG). The degradation of PEG consolidants in the timbers of the sixteenth century warship Mary Rose has been examined and the rheological and thermal properties of PEG have been compared with its monomethyl and dimethyl ethers and several polysaccharide consolidants (chitosan, guar, and 2-hydroxyethyl cellulose) in order to evaluate their potential as alternative consolidants for the conservation of waterlogged wooden artefacts. Additionally, the effect of the polymers on the archaeological wood was characterised by thermogravimetric analysis and solid-state nuclear magnetic resonance spectroscopy. The results suggest that the future of conservation technologies lies with polysaccharide consolidant materials, which show enhanced compatibility with wooden artefacts with no detectable side effects while also being cheap, with extremely low toxicity, renewable, and sustainably resourced.     

人类常见遗传性疾病的遗传方式、特征表现及防治方法

人类常见遗传性疾病有染色体遗传、单基因遗传病和多基因遗传病等三种方式,人类常见遗传性疾病具有先天性、家族性、终生性、发病率高等四大特证．本文通过对人类常见遗传性疾病的遗传方式和特征进行分析。就如何防治人类常见遗传性疾病提出了一些具体措施．     

影视欣赏与跨文化交际教学

大部分人对于跨文化交际教学中的电影教学存在一个共同误区,认为电影是一个传授手段,利用影片教学就是放放电影,其效果十分有限。而实际上,如果我们把影片视为一个实践手段,一个自我评估手段,影片教学这个方法的效果也许不是那么有限。在教学进行到一定程度的时候播放了《刮痧》这部影片,学生运用所学知识对此进行跨文化差异分析,把影片教学当作一个实践手段和评估手段,不仅解答了学生对与该课程实际意义的困惑,而且进一步激发了学生学习跨文化交际学的兴趣。     

Effectiveness of specific factors in community-based intervention for child-witnesses of interparental violence: A randomized trial

A community-based intervention with specific factors for children and parents exposed to interparental violence (IPV) was compared with a control intervention based on non-specific factors. We hypothesized that participation in an intervention with specific factors, focused on IPV, parenting and coping, would be associated with better recovery. IPV exposed children and parents were group randomized over a specific factors- and control intervention. Baseline, posttest and follow-up measurements of 155 parents and children (aged 6–12 years, 55.5% boys) were fitted in a multilevel model. Outcomes were parent and teacher reported children's internalizing and externalizing problems (CBCL, TRF), child self-reported depressive symptoms (CDI) and parent and child reported children's post-traumatic stress symptoms (TSCYC, TSCC). Based on intention-to-treat and completer analyses, children in the specific factors intervention did not show better recovery than children in the control intervention. Children in both interventions decreased significantly in parent-reported children's internalizing and externalizing problems and post-traumatic stress symptoms. Children reported a decrease in their mean level of depressive and post-traumatic stress symptoms. Teachers reported a decrease in internalizing problems, but not in externalizing problems. No association between time since exposure and level and course of symptoms was found. Treatment differentiation was assessed and both programs were significantly different on hypothesized effective factors. Higher treatment adherence in both programs did not result in a larger difference in recovery. IPV exposed children improve over the course and after participating in a community-based child- and parent program, but specific factors in intervention may not carry additional benefits when implemented in community settings.     

CASS工艺污水处理监控系统设计

本文介绍了西门子公司S7-300PLC在污水处理厂自动控制中的应用,设计基于profibus-dp现场总线的污水处理分布式监控系统,详细介绍了系统网络拓扑结构、系统配置、上/下位机软件设计方案及主要控制流程。实际运行表明该系统运行稳定可靠。     

甘肃张掖地区农村冠心病患者二级预防用药调查分析

目的:探讨甘肃张掖地区农村冠心病(CHD)患者二级预防用药现状及影响因素,为提高CHD患者二级预防药物的使用率与服药依从性提供参考依据;方法:选择甘肃张掖市及各县区范围内农村CHD患者327人,在患者就诊时通过访谈填写统一的调查表,分析二级预防药物的使用率、服药依从性以及影响因素,并与289名城镇患者进行比较;结果:农村CHD患者抗血小板药、β-受体阻滞剂、他汀类、ACEI/ARB的服药率分别为81.7%、41.9%、34.3%、37.9%;联合用药中二联、三联、四联用药分别为占50.2%、16.5%、7.0%,均低于本地区城市CHD患者;93.0%患者服药依从性较差,对CHD药物预防认识不足,服药随意性强是影响服药依从性的主要原因.结论:张掖地区农村CHD患者二级预防药物的使用与指南要求有很大差距,应提高基层医师和CHD患者对二级预防药物益处的认识,提高药物的使用率与服药依从性.     

砖混结构顶层墙体裂缝的分析与防治

文章对砖混结构房屋顶层墙体产生裂缝的原因进行了多方面的分析，并提出了有针对性、切实可行的办法。     

关于布摩待遇的调查研究——以纳雍县新房彝族苗族乡的个案调查为例

布摩在彝族社会中曾一度享有崇高的地位,他们创造了彝族文字,传承了彝族文化,为人类的文明史书写了光辉的一页。然而,随着社会的变迁,科学技术的极速发展,布摩的生存空间越来越小。为此,我们当发挥布摩的特长,重新树立布摩在传承彝族文化中的地位,从而促进彝族文化健康持续发展。     

浅谈大学生篮球运动伤害及其治疗和预防

本文将对大学生篮球运动中常见的运动伤害进行一些分析,并提出一些预防和治疗的方法。