浅谈小医院临床检验分析前质控

我们检验科每次更换新的批号的试裁都会及时的做质控,质控的结果也很好,由于我们的标本量少,患者来得时间不统一,检验的结果有时候会和大医院有差距,我们分析7原因,我们应当注意检验分析前的质控。     

Effects of Aging Torque Controllers on Screw Tightening Force and Bacterial Micro-Leakage on the Implant-Abutment Complex

Aim: We assess the accuracy of torque controllers after several aging processes and the bacterial leakage on implant-abutment complexes (IAC). Methods: A total of 12 spring-type and 12 friction-type torque controllers and 48 IAC (24 conical and 24 hexagonal connections) were evaluated. Chemical, mechanical, temperature, and pressure-aging methods were applied individually to replicate clinical use. Torque controller accuracy was analyzed before and after aging using a calibrated gauge. To assess bacterial leakage, the IAC were suspended in a bacterial medium for 24 h. Direct Contact Test (DCT) and Polymerase Chain Reaction Test (RT-PCR) analyzed the infiltration of F. nucleatum and P. gingivalis into the IAC micro-gap. Results: A significant decrease in torque after 10 days of aging was found. The spring-type torque controller was affected the most, regardless of the aging method (P < 0.05). PCR results indicated that all groups exhibited significantly more bacterial leakage, regardless of the method used (P < 0.05). The conical IAC demonstrated more bacterial leakage of P. gingivalis compared with the hexagonal IAC (P = 0.07). DCT found bacterial growth in the IAC only before aging and was not identified after aging. Conclusion: Aging affects torque accuracy. A reduction in force was noticed after 10 days. The conical IAC exhibits more bacterial leakage, although this was not statistically significant.     

Deterioration Mechanisms and Advanced Inspection Technologies of Aluminum Windows

Aluminum windows are crucial components of building envelopes since they connect the indoor space to the external environment. Various external causes degrade or harm the functioning of aluminum windows. In this regard, inspecting the performance of aluminum windows is a necessary task to keep buildings healthy. This review illustrates the deterioration mechanisms of aluminum windows under various environmental conditions with an intention to provide comprehensive information for developing damage protection and inspection technologies. The illustrations reveal that moisture and chloride ions have the most detrimental effect on deteriorating aluminum windows in the long run, while mechanical loads can damage aluminum windows in a sudden manner. In addition, multiple advanced inspection techniques potential to benefit assessing aluminum window health state are discussed in order to help tackle the efficiency problem of traditional visual inspection. The comparison among those techniques demonstrates that infrared thermography can help acquire a preliminary defect profile of inspected windows, whereas ultrasonic phased arrays technology demonstrates a high level of competency in analyzing comprehensive defect information. This review also discusses the challenges in the scarcity of nanoscale corrosion information for insightful understandings of aluminum window corrosion and reliable window inspection tools for lifespan prediction. In this regard, molecular dynamics simulation and artificial intelligence technology are recommended as promising tools for better revealing the deterioration mechanisms and advancing inspection techniques, respectively, for future directions. It is envisioned that this paper will help upgrade the aluminum window inspection scheme and contribute to driving the construction of intelligent and safe cities.     

Impact of Magnetization on the Evaluation of Reinforced Concrete Structures Using DC Magnetic Methods

The magnetic method is the most promising method that can be used to inspect large areas of reinforced concrete (RC) structures. Magnetization is a crucial process in this method. The paper aims to present the impact of the magnetization method on the results in the detection of reinforced bars (rebars) and the evaluation of concrete cover thickness in reinforced concrete (RC) structures. Three cases (without magnetization, same pole magnetization, and opposite pole magnetization) were considered in the experiments. Results achieved in all the methods are presented and evaluated. Two different sensing elements were used in the measurements: a magneto-optical (MO) sensor and an AMR sensor. The advantages and disadvantages of both mentioned transducers are presented and discussed in the context of a large areas inspection. The new approach involves using various magnetization methods to improve measurement results for complex structures.     

临床教学中利用教学查房对学生评判性思维培养初探

目的培养学生的评判性思维方式。方法利用不同形式的教学查房,引导学生根据所学的知识对问题进行思考、分析,围绕问题探究实质,创造性地解决问题。结果增强了学生独立思考的品质,自觉地对自己的护理行为进行反思。结论提高了学生的综合素质及提高了教师的专业水平和带教能力。     

关于医用超声探头卫生学问题的国际视野

医用超声探头属于重复使用的医疗器械部件。在放置和使用过程中,通过与耦合媒质、患者身体、医务人员及周围环境的接触而不可避免地沾染微生物,因此按照一定规范对其进行清洁、消毒、灭菌等净化处理是完全必要的。自20世纪90年代至今,国内外已经开展了一些工作,并积累了一定经验,一些国家还制定了专门制度。为促进国内医用超声探头净化工作的推广与提升,本文列出重要文献以供参阅。     

中医色诊图像采集系统的设计与实现及实验研究

研制中医色诊图像采集系统.整体制作为箱体式上下结构,系统选择色温5500K的氙灯模拟日光光源,反射率大于96％的聚四氟乙烯悬浮树脂涂层积分球漫射照明,分辨率为4 752像素×3 168像素的调谐数码相机采集图像.长时间光源稳定性和光线均匀性实验表明:图像采集系统光源稳定性大于99.1％、显色性大于95％,光线均匀性大于98.6％;不同照度下,图像色度偏差小于1.24％;40例中青年和60例老年人面部图像采集实验证明:面部图像采集系统可以用RGB和Lab颜色空间的数据准确定量人脸面部的特征色诊信息,采集的数据可为中医色诊信息的客观化研究提供参考.     

应用数字编号法提供合格灭菌手术包

目的　用数字编号法能更简单、完善地为医患双方提供合格的无菌手术包。方法　用数字编号法比较无菌手术包内压力蒸气灭菌化学指示卡粘贴法的优缺点 ,将数字编号和灭菌手术包内压力蒸气灭菌化学指示卡合格记录于手术护理记录单上 ,与无菌手术包内压力蒸气灭菌化学指示卡粘贴于手术护理记录单背面作比较。结果　数字编号法弥补了灭菌手术包内压力蒸气灭菌化学指示卡粘贴法的不足 ,使其更方便、适用。结论　无菌手术包数字编号法可为有关护理同仁提供参考