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排序方式: 共有871条查询结果,搜索用时 15 毫秒
51.
目的:了解当代中学生在智力成就领域的控制与责任信念.方法:对6个年级6个班的298名中学生进行了智力成就责任(IAR)问卷测查.结果:在自我责任和认为成功来源于内部责任两个方面,初中学生得分显著高于高中学生;女生高于男生;父母文化程度及职业对此无明显影响.独生子女与非独生子女在自我责任以及认为成功来自于主、客观诸方面差异不明显.独生子女内部,仅女生的自我责任和认为成功来自内部责任两方面得分高于男生.其余差异不具显著性.结论:年龄越小,其可塑性越强,独生子女与非独生子女并无特别之处. 相似文献
52.
Carolyn V. Kirschner MD Jose M. Alanis-Amezcua MD Victorino G. Martin MD Nic Luna HT Eileen Morgan MPA Jih-Jing Yang PhD Edgardo L. Yordan MD Funded by a Lutheran General HealthSystem Clinical Research Support Grant. 《American journal of obstetrics and gynecology》1996,174(6):1879-1884
OBJECTIVE: Tumor angiogenesis is believed to be a prognostic indicator associated with tumor growth and metastasis. Studies of angiogenesis in breast, prostate, and lung cancer, as well as melanoma, have shown that neovascularization correlates with the likelihood of metastasis and recurrences. The purpose of this study was to evaluate microvessel density as a prognostic factor in endometrial cancer. METHODS: Between 1980 and 1991 the tumor registry identified 25 patients with a diagnosis of recurrent endometrial cancer. These patients were matched with 25 patients with nonrecurrent disease for age, stage, grade, and treatment. The histologic slides of the 50 patients were reviewed. The paraffin blocks were obtained, and the area of the deepest myometrial invasion was selected for staining. The microvessels within the invasive cancer were highlighted by means of immunocytochemical staining to detect factor VIII - related antigen. Microvessels were counted by two investigators who were blinded to the patients' clinical status. Survival data were analyzed with Kaplan-Meier survival curves. RESULTS: Microvessel count was related to likelihood of recurrence, although this trend did not reach statistical significance. Patients with tumors of low capillary density had a mean survival time of 123 months. Patients with tumors of high capillary density had a mean survival time of 75 months (p = 002). Among patients with recurrent disease, those with a low capillary count survived a mean of 64 months. Patients with recurrent disease with tumors of high capillary density survived a mean of 45 months (p = 0.002). CONCLUSION: Angiogenesis factor correlates with survival in endometrial carcinoma. (Am J Obstet Gynecol 1996;174:1879-84.) 相似文献
53.
54.
中医药抄本总合与类分 总被引:2,自引:0,他引:2
黄璐 《上海中医药大学学报》2003,17(1):10-12
对《全国中医图书联合目录》中医药抄本进行梳理。总量为5083种,其中未刻抄本3928种,已属孤本的有3623部;清末前抄本1288种,其中未刻抄本924种;日本抄本227种,其中未刻抄本141种(清末前日本抄本71种,其中未刻抄本48种)。统计收藏中医药抄本种量前10位的国内图书馆,其中中国中医研究院与上海中医药大学的馆藏量合计约占全部抄本总量的45%。 相似文献
55.
Dwyer J Picciano MF Raiten DJ;Continuing Survery of Food Intakes by Individuals;National Health Nutrition Examination Survery 《The Journal of nutrition》2003,133(2):576S-581S
The history of the integration of the dietary data collection from the National Health and Nutrition Examination Survey (NHANES) and the Continuing Survey of Food Intakes by Individuals (CSFII) is reviewed. The purposes and process of the workshop are presented. The three key topics of the workshop are summarized. The key roles of cosponsors and participants are acknowledged. 相似文献
56.
中医疲劳术语整理研究 总被引:9,自引:0,他引:9
以疲劳术语系列中的“倦类”为代表进行释义并阐述了整理疲劳术语的意义的目的。其意义和目的为:阐明中医疲劳的病因,病机,规范描述疲劳的术语,为探讨中医抗疲劳及调治亚健康的方药提供线索与依据。 相似文献
57.
糖克煎剂对大鼠糖尿病肾病早期滤过率影响的实验研究 总被引:4,自引:1,他引:4
目的 :观察糖克煎剂对大鼠糖尿病肾病早期滤过率影响。方法 :用高脂饲料喂养大鼠 1个月后经尾静脉 1次性注射链脲佐菌素 (STZ)造成糖尿病及痰浊血瘀中医证候模型。应用具祛痰化瘀作用的中药糖克煎剂分别在造模成功及成模后 1周灌服 4周 ,并设立参芪组 ,开搏通组为阳性药对照组 ,造模后及实验结束检测大鼠空腹血糖 ,实验后检测尿微量白蛋白 (AIb)、血脂、血流变、肾小球滤过率等。结果 :糖克煎剂有降低血糖、尿微量白蛋白排出作用 ,改善高粘状态 ,降低血脂、降低肾小球滤过率 ,其作用优于对照组。结论 :糖克煎剂有防治糖尿病早期肾病的作用。 相似文献
58.
目的 :探讨黄芪最佳提取工艺。方法 :采用正交设计优选 ,以黄芪甲苷为检测指标。结果 :最佳提取条件为 :用 12倍量的水浸泡 0 .5 h,煎煮三次 ,每次 2 h。结论 :本文优选的水提工艺黄芪甲苷提取率达到 90 %以上 相似文献
59.
Reviewed by Paul R. Falzer 《Journal of health communication》2013,18(1):95-97
Childhood obesity is a significant problem in the United States. A number of communication campaigns and interventions have been conducted to combat the problem, with parents being recognized as an important target audience. A critical aspect of involving parents in such campaigns is formative research on parents' perceptions of their role in preventing childhood obesity. To facilitate this process, a study was conducted in which parents (N = 201) responded to Theory of Planned Behavior (TPB) survey items as they relate to providing healthy foods and limiting unhealthy foods for their children. Results indicated support for TPB predictions. Additionally, the degree to which parents viewed providing healthy foods and limiting unhealthy foods as effective in preventing obesity (response efficacy) was predictive of parent tracking of children's unhealthy eating behavior. Finally, parent TV viewing behavior was related to perceived response efficacy of limiting children's TV viewing hours. Practical implications for communication practitioners are discussed. 相似文献
60.
目的研究 8 (N ,N 二乙铵 ) n 辛基 3,4 ,5 三甲氧基苯甲酸酯 (TMB 8)对谷氨酸诱导神经细胞DNA损伤的影响。方法用谷氨酸诱导培养的大鼠皮层神经细胞DNA断裂 ,观察TMB 8对神经细胞DNA断裂和线粒体功能的影响。结果TMB 8能明显减轻谷氨酸诱导的大鼠皮层神经细胞DNA断裂并能改善线粒体功能。结论TMB 8具有抑制神经细胞DNA损伤的作用 ,其机制可能与其降低细胞内游离钙、改善线粒体功能和减轻谷氨酸的氧化毒性有关 相似文献