持续灌流与非灌流切换结合模式的耳内镜下中耳胆脂瘤手术

目的 本文旨在探索持续灌流模式在耳内镜手术中应用的最佳方式,以及尝试建立持续灌流与非灌流模式切换结合的耳内镜中耳胆脂瘤手术流程.方法 回顾性分析在2019年1月至2020年12月间收治的73名单侧的中耳胆脂瘤患者,术中确定为中上鼓室胆脂瘤患者,年龄为10-68岁,其中女性患者34名,男性患者39名.其中33名患者采用持...     

药学类本科毕业实践环节推行校企双导师制模式探讨

文章通过分析传统药学毕业实践环节存在的各种弊端，提出在毕业环节中实行校企双导师制模式。文中还阐述了该模式的几个优点。通过对校企双导师制的探讨，文章认为在药学类毕业环节中实行校企双导师制是非常有必要的和非常可行的。     

ⅡB期宫颈鳞癌不同方案同步放化疗与单纯放疗的疗效及毒副反应比较

目的 比较ⅡB期宫颈鳞癌单纯放疗、单药顺铂（P方案）同步放化疗、顺铂联合多西他赛（TP方案）同步放化疗的疗效及毒副反应.方法 收集收治的ⅡB期宫颈鳞癌患者1 12例,34例选择单纯放疗,78例选择同步放化疗的患者按入院顺序随机分为P方案同步放化疗组（40例）和TP方案同步放化疗组（38例）.3组患者均给予相同的根治性放疗,P方案同步放化疗组在放疗第1、8、15、22、29天给予顺铂40 mg· （m2）-1静脉滴注;TP方案同步放化疗组在放疗第1、22天给予多西他赛75 mg· （m2）-1、顺铂50mg＆#183; （m2）-1静脉滴注.结果 单纯放疗组、P方案同步放化疗组、TP方案同步放化疗组,完全缓解率（CR）分别为82.35％、95.00％、92.11％;3年生存率分别为81.70％、94.60％、83.20％ （P ＜0.05）;3年无病生存率分别为69.10％、86.10％、77.50％ （P＜0.05）.单纯放疗组、P方案同步放化疗组、TP方案同步放化疗组≥3级白细胞下降发生率分别为32.35％、42.50％、52.63％（P＞0.05）;2级恶心、呕吐发生率分别为29.41％、27.50％、55.26％ （P ＜0.05）.结论 ⅡB期宫颈鳞癌同步放化疗与单纯放疗比较,有效率及生存率均有提高趋势,同步放化疗P方案较TP方案更易耐受.     

网络环境下教师指导性活动的设计

网络教学为学生的学习提供了丰富的资源，拓延了教学时空的维度，对现有的教学内容、教学手段和教学方法提出了挑战。本文探讨了在此环境下教师指导活动的内容，设计原则及其设计方法等问题。     

PBL联合PDG在临床医学系高年级医学生中的应用

目的 研究以问题为导向的教学方法 (PBL)联合问题—讨论—指导(PDG)教学模式在临床医学系高年级医学生培养中的应用效果.方法 选取2018年1月—2019年1月临床医学系高年级医学生134例,按随机数字表分为对照组(67例)与研究组(67例),对照组学生采用传统的教学模式,研究组学生采用PBL联合PDG教学模式,比...     

高校图书馆随书光盘管理探析

分析随书光盘的特点,介绍高校图书馆随书光盘的几种管理模式,对如何科学管理随书光盘提出几点建议,具体包括合理利用存储空间、引进智能光盘管理库、为随书光盘镜像服务器建立云存储架构等方面。     

Multiple brain networks support processing speed abilities of patients with multiple sclerosis

Objectives: Many people affected by multiple sclerosis (MS) experience cognitive impairment, especially decreases in information processing speed (PS). Neural disconnection is thought to represent the neural marker of this symptom, although the role played by alterations of specific functional brain networks still remains unclear. The aim is to investigate and compare patterns of association between PS-demanding cognitive performance and functional connectivity across two MS phenotypes.

Methods: Forty patients with relapsing-remitting MS (RRMS) and 25 with secondary progressive MS (SPMS) had neuropsychological and MRI assessments. Multiple regression models were used to investigate the relationship between performance on tests of visuomotor and verbal PS, and on the verbal fluency tests, and functional connectivity of four cognitive networks, i.e. left and right frontoparietal, salience and default-mode, and two control networks, i.e. visual and sensorimotor.

Results: Patients with SPMS were older and had longer disease history than patients with RRMS and presented with worse overall clinical conditions: higher disease severity, total lesion volume, and cognitive impairment rates. However, in both patient samples, cognitive performance across tests was negatively correlated with functional connectivity of the salience and default-mode networks, and positively with connectivity of the left frontoparietal network. Only the visuomotor PS scores of the RRMS group were also associated with connectivity of the sensorimotor network.

Conclusions: PS-demanding cognitive performance in patients with MS appears mainly associated with strength of functional connectivity of frontal networks involved in the evaluation and manipulation of information, as well as the default mode network. These results are in line with the hypothesis that multiple neural networks are needed to support normal cognitive performance across MS phenotypes. However, different PS measures showed partially different patterns of association with functional connectivity. Therefore, further investigations are needed to clarify the contribution of inter-network communication to specific cognitive deficits due to MS.     

护理实验室开放管理模式的探索与体会

分析传统护理实验室管理的主要问题,探索护理实验室开放管理的实施方法,充分发挥实验室的功能,以提高实验教学效果及学生的综合素质、提升实验教学资源的利用率等。     

“劲润”牙本质保护膜的牙本质粘结性能探讨

目的：探讨“劲润”牙本质保护膜（Hybrid Coat,HyC）的牙本质粘结性能。方法：选取A组（HyC）和其他3组不同类型的牙本质粘结剂：B组（G-Bond）、C组（MegaBond）和D组（single Bond）,比较其对牛牙牙本质的剪切粘结强度,并用实体显微镜观察粘结界面断裂模式。各组试料数分别为n=10,结果通过Tukey-Kramer（P〈0．05）进行统计学分析。结果：B、C、D组均显示了较大的粘结强度,3组之间无统计学差异。A组（HyC）显示了较低的粘结强度,约10．08MPa,与其他3组之间存在显著性差异。断裂模式显示,A组（HyC）以界面破坏为主,而其他3组以凝集破坏和混合破坏为主。结论：本研究结果提示,“劲润”牙本质保护膜（HyC）的粘结强度弱于其他3组牙本质粘结剂。为了保证HyC长期稳定的防过敏效果及粘结性能,在今后的研究中有必要进一步探讨如何提高HyC的牙本质粘结性能。