论《内外伤辨惑论》辨虚实本质及内外伤的相关性

[目的]探讨金元医家李东垣的奠基之作《内外伤辨惑论》的辨惑本质以及内伤与外感病的相关性。[方法]通过对《内外伤辨惑论》立论背景的研究,分析该论中主要的十三辨,进而思考辨惑的本质;同时联系李氏代表著作《脾胃论》中对解表药（风药）升发阳气作用机理的阐发,并与张仲景《伤寒论》等学术思想相比较,讨论外感风寒与内伤脾胃的对立与转化关系。[结果]发现《内外伤辨惑论》的辨惑实质并非在于病位之表里,而在于病证之虚实;从风药的作用机理以及表证、风药与脾胃的关系等分析,提出了内伤与外感病存在相关性。[结论]对《内外伤辨惑论》辨虚实本质的揭示及对解表药作用本质、内伤和外感相关性的认识,可以为临床辨证用药打开一些思路。     

杨金斗老师牵按理筋法治疗臀上皮神经损伤经验浅析

牵按理筋法是杨金斗老师在多年临床工作中总结出的治疗臀上皮神经损伤的特色手法,此法具有操作简单、针对性强、疗效显著、无不良反应、患者易接受的特点。此法充分体现了杨金斗老师在治疗筋伤病时所一贯遵循的以舒筋止痛、整复移位为主导的治疗思路,与"松则通""顺则通""正则通""通则不痛"为目的的治疗原则,以及以"稳、准、巧"为核心的施术要领。文章系统介绍了牵按理筋法的具体操作方法、特点及施术要领、注意事项等,并结合具体临床病例及实际运用进行了较为详尽的操作机理分析。     

李渔的养生思想

李渔养生思想的形成,得益于其医学世家的家庭背景,传统文化的熏染和对生活经验的积累与体悟。李渔提出,"心和则百体皆和",认为养生需遵循事物变化发展的规律,依据四时变化分别处之,顺时而为,顺势而为,顺心而为,顺性而为。李渔的养生思想,提供普通百姓以养生之理、生活哲学。     

电感耦合等离子体发射光谱（ICP）检测电生理导管可沥滤物的试验方法研究

本文采用电感耦合等离子体发射光谱法检测电生理导管中四种可沥滤物：硫酸钡,颜料黄53,颜料棕24和二氧化钛的含量。经方法验证,该方法校准曲线线性良好,线性范围达4~6个数量级;检出限极低,小于0.1μg/mL;回收率达到95%~103%;实验室内检测变异系数小于3%。该方法可同步测量多种超低痕量金属元素,大大减少了样品预处理和样品使用量,具有实用性和经济性,值得推广使用。     

“钉钉”课堂在来华留学生人体寄生虫学课程教学中的实践与思考

“钉钉”线上教学是基于教育部门引领下的“互联网+教育”新模式,具有其他线上教学方式所没有的独特优势。全球新冠肺炎疫情背景下,安徽医科大学针对来华留学生开展了“钉钉”课堂线上教学实践。本文从“钉钉”课堂在留学生人体寄生虫学课程教学中的实践着手,总结“钉钉”课堂的优势及问题,提出线上教学建议,以期为来华留学生人体寄生虫学课程线上教学提供参考。     

Effect of Residual Trace Amounts of Fe and Al in Li[Ni1/3Mn1/3Co1/3]O2 Cathode Active Material for the Sustainable Recycling of Lithium-Ion Batteries

As the explosive growth of the electric vehicle market leads to an increase in spent lithium-ion batteries (LIBs), the disposal of LIBs has also made headlines. In this study, we synthesized the cathode active materials Li[Ni_1/3Mn_1/3Co_1/3]O₂ (NMC) and Li[Ni_1/3Mn_1/3Co_1/3Fe_0.0005Al_0.0005]O₂ (NMCFA) via hydroxide co-precipitation and calcination processes, which simulate the resynthesis of NMC in leachate containing trace amounts of iron and aluminum from spent LIBs. The effects of iron and aluminum on the physicochemical and electrochemical properties were investigated and compared with NMC. Trace amounts of iron and aluminum do not affect the morphology, the formation of O3-type layered structures, or the redox peak. On the other hand, the rate capability of NMCFA shows high discharge capacities at 7 C (110 mAh g⁻¹) and 10 C (74 mAh g⁻¹), comparable to the values for NMC at 5 C (111 mAh g⁻¹) and 7 C (79 mAh g⁻¹), respectively, due to the widened interslab thickness of NMCFA which facilitates the movement of lithium ions in a 2D channel. Therefore, iron and aluminum, which are usually considered as impurities in the recycling of LIBs, could be used as doping elements for enhancing the electrochemical performance of resynthesized cathode active materials.     

Sensitivity to H, Li and Mg ions of the slow inward sodium current in frog atrial fibres.

Membrane currents have beenmeasured in frog atrial fibres under voltage clamp conditions (double sucrose gap method); the effects on these currents of (i) an increase in [H]_o, (ii) the complete substitution of external Na by Li, (iii) the addition of Mg have been studied.The TTX-sensitive rapid inward current is decreased in acid Ringer (pH 5.6) as compared to values in normal Ringer (pH 7.8); it is unchanged in Li-Ringer and increased in Mg-Ringer. The slow inward calcium current (measured in TTX, Na-free solution) is decreased in acid Ringer and in Mg-Ringer and is unchanged in Li-Ringer. Increases or decreases affecting the rapid sodium current and the calcium current never exceed 40% and are generally smaller. On the other hand the slow inward sodium current (measured in TTX, Ca-free solution) is always suppressed in the three conditions studied.The participation of Na ions to the slow inward current in so called normal Ringer, that is in Mg-free Ringer is discussed. Indirect evidences are presented in favour of such a participation. After addition of Mg 1.8 mm to Ringer the slow inward current is carried only by Ca ions. Since the slow inward sodium current increases markedly in Mg-free Ca-free Ringer, it is concluded that the slow Na conductance is controlled by both Ca and Mg ions in addition to being strongly pH-dependent. It is also suggested that Na and Ca ions participating to the slow inward current do not penetrate necessarily through the same channel.     

Challenges of eliminating mother-to-child transmission of HIV,syphilis and hepatitis B in China: a cross-sectional survey

Background

China's Integrated Prevention of Mother-to-Child Transmission of HIV, Syphilis and Hepatitis B Virus programme (iPMTCT Programme) was launched in 2010 and has been extended nationwide since 2015. China also set up the Elimination of Mother-to-Child Transmission (EMTCT) of HIV, Syphilis, and Hepatitis B virus in 2016. This study aimed to assess the progress that has been made in eliminating mother-to-child transmission of HIV, syphilis and hepatitis B, and to identify the challenges that remain.

Percutaneous transcystic balloon dilation for common bile duct stone removal in high-surgical-risk patients with acute cholecystitis and co-existing choledocholithiasis

Background

Percutaneous procedures to treat common bile duct (CBD) stones typically require access via intrahepatic bile ducts. This study aimed to describe the outcomes of a percutaneous transcystic approach that expelled the CBD stones into the duodenum after percutaneous transcystic balloon dilation of the ampulla (PTCBDA) for high-risk patients who present with acute cholecystitis and CBD stones.