4Cr13钢磁场深冷处理工艺研究

研究了4Cr13钢正常淬火、深冷处理以及磁场深冷处理等三种工艺热处理,分析了深冷处理、磁场深冷处理对4Cr13钢组织和性能的影响.结果表明:深冷处理以及磁场深冷处理对提高4Cr13钢的塑性和韧性及耐蚀性有着良好的作用.     

Intramammary expression and therapeutic effect of a human lysozyme-expressing vector for treating bovine mastitis

To develop a gene therapy strategy for treating bovine mastitis, a new mammary-specific vector containing human lysozyme （hLYZ） cDNA and kanamycin resistance gene was constructed for intramammary expression and clinical studies. After one time acupuncture or intracisternal infusion of healthy cows with 400μg of the p215C3LYZ vector, over 2.0 μg/ml ofrhLYZ could be detected by enzymatic assay for about 3 weeks in the milk samples. Western blotting showed that rhLYZ secreted into milk samples from the vector-injected cows had molecular weight similar to that of the natural hLYZ in human colostrums. Twenty days after the primary injection, the quarters were re-injected with the same vector by quarter acupuncture and even higher concentrations of rhL YZ could be detected. Indirect competitive ELISA of milk samples showed that the vector injection did not induce detectable humoral immune response against hL YZ. Clinical studies showed that twice acupuncture of quarters with the p215C3LYZ vector had overt therapeutic effect on clinical and subclinical mastitis previously treated with antibiotics, including disappearance of clinical symptoms and relatively high microbiological cure rates. These data provide a solid rationale for using the vector to develop gene therapy for treating bovine mastitis.     

高校图书馆开展大学生网络成瘾阅读疗法服务的实证研究

本文在论述高校图书馆开展阅读治疗服务及图书馆在戒除大学生网络成瘾方面的意义和作用基础上,重点介绍了开展网络成瘾大学生阅读治疗与读者服务的具体措施和效果.     

悬吊训练技术在核心力量训练中的实验研究

本文采用悬吊训练技术,对学生的核心力量进行训练.实验结果表明,悬吊训练技术可以在较大程度上提高实验组学生的腹直肌、髂腰肌、竖脊肌、腰方肌和腹内、外斜肌等肌肉群及胸腰筋膜组成的核心区的力量和肌肉间的协调性,女生的各项成绩提高非常显著.     

基于有限元法对亥姆霍兹线圈磁场的分析

为进一步明确亥姆霍兹线圈所产生磁场的近场特性,文中尝试采用基于有限元方法的ANSYS软件对亥姆霍兹线圈进行了分析,首先采用ANSYS软件对亥姆霍兹线圈进行三维实体有限元模型和仿真,并将结果与用MATLAB语言绘制磁感应强度的空间分布图进行比较.仿真结果说明ANSYS有限元模型优于MATLAB语言,并且通过实验验证了所建的三维亥姆霍兹线圈有限元模型的有效性和正确性.     

Reaching out to single parent children through filial therapy

Single parenthood as a common psychosocial phenomenon seems to be regarded as one of the most significant issues in the psychological domain and needs to be taken into serious consideration due to emotional, psychological, and social problems created by it. With regard to the rapidly growing population of single parents and their children experiencing relationship-based problems, interventions which deal with relational issues are worth in-depth explorations. This study was primarily concerned with the betterment of single parent-child relationships. For the purpose of this research, a case study was conducted to probe into the impact of filial therapy-a relationship-enhancement family/play therapy--on （1） reducing children＇ problem behaviors, and （2） ameliorating parent-child dysfunctional relationships through improving parenting knowledge and skills. The intended data for the study was gathered through （1） pre-post play observation, （2） parent＇s self-reports, and （3） the reports obtained from a kindergarten trainer. The outcomes of this one-month long case study revealed that filial therapy has the potentiality in enhancing and rebuilding parent-child relationships through teaching single parents the skills necessary for coping with the problems accelerated by the newly developed situation, which might be seen as a result of single parenthood （e.g., childhood problem behaviors, parent-child relational problems, lack of adequate parenting knowledge and skills）. In the end, this article concludes a few suggestions for future studies in this field.     

创设问题情境 激发探究欲望——“带电粒子在匀强磁场中的运动”教学设计

探究性学习的核心是围绕“问题情境”展开科学的探索和研究,因此,教师在创设“问题情境”课堂教学时应充分激发学生的探究欲望和参与情感。主要从创设问题情境的原则、方法出发,就创设问题情境具体课堂教学案例——“带电粒子在匀强磁场中的运动”进行探究和实践。     

Attitudes of healthcare students on gross anatomy laboratory sessions

At Chiba University, gross anatomy laboratory sessions (“laboratories”) are required for physical therapy students. Though most physical therapy schools require their students to participate in laboratories so that they will better understand the structure of the human body, few data exist on the value of these laboratories specifically for physical therapy students. We administered questionnaires to physical therapy undergraduate students both before and after they participated in laboratories. Questionnaire items focused on student attitudes toward the laboratories and on human life and dignity. Data from 83 students were analyzed, with the following results: (1) 74.7% of students had a positive attitude about attending laboratories before doing so; (2) with few exceptions, students' attitudes about upcoming laboratories grew more positive after experiencing the laboratory work (P < 0.001); (3) laboratories caused students to contemplate the topics of human life and dignity; and (4) 83.1% of students hoped to participate in laboratories at least four times. These results indicate that laboratories reinforce physical therapy students' positive attitudes about laboratory learning and promote student reflection on human life and dignity. This study provides support for the implementation of multiple laboratory sessions using cadavers into a uniform curriculum for physical therapy students in Japan. Anat Sci Educ 2: 273–279, 2009. © 2009 American Association of Anatomists.     

悬吊训练对髂胫束摩擦综合征的疗效观察

本文探讨了悬吊运动疗法对髂胫束摩擦综合征患者疼痛及下肢功能的影响,分别于治疗前和治疗6周后测量视觉疼痛模拟评分(VAS)、下肢功能评分指数(LEFS)、表面肌电(SEMG)和髂胫束(ITB)厚度,与对照组进行比较,结果显示在常规康复训练的基础上辅以悬吊运动疗法,可以进一步减轻髂胫束摩擦综合征患者的疼痛,并改善下肢功能。     

不同保守疗法治疗运动员膝关节内侧副韧带损伤的疗效对比分析

目的:对比不同保守疗法治疗运动员膝关节内侧副韧带(MCL)损伤的临床疗效。方法:2018年6月至2022年12月期间膝关节MCL损伤的运动员共72例,随机分为电针+推拿组(对照组)、电针+推拿+康复训练组(实验组),每组36人,进行为期4周的治疗。采用疼痛视觉模拟评分(VAS).Lysholm膝关节功能评分,对不同组的运动员治疗前后的疼痛、膝关节功能进行评定,并进行临床疗效评估。结果:对照组和实验组治疗后的有效率分别为76%和94%,VAS评分均显著降低(P<0.45),Lysholm评分均显著增加(P<0.05);治疗后,实验组的VAS评分.Lysholm评分均优于对照组,且差异显著(P<0.05)。结论:电针结合推拿和康复训练治疗运动员膝关节MCL损伤的疗效要优于电针结合推拿治疗方法,能够明显改善患者膝关节周围疼痛及膝关节整体功能。