大鼠左心室流出道电生理特性的观察

目的为了观察大鼠左心室流出道组织是否具有自动节律性.方法利用细胞内微电极记录技术,观察了18例大鼠左心室流出道组织的电生理特征.结果16例(88.89%)出现了自律性电活动,并且可在局部组织记录到典型的慢反应动作电位.结论大鼠左心室流出道组织具有自律性.其生理功能有待进一步研究.     

Video-assisted thoracoscopic surgery （VATS） for bilateral primary spontaneous pneumothorax

Objective:To review our experience of the treatment of bilateral primary spontaneous pneumothorax (PSP) by video-assisted thoracoscopic surgery (VATS). Materials and methods: Retrospective chart review was followed by an on-clinic or telephone interview. Patients were cared for by one thoracic surgeon in four medical centers or community hospitals in Northern and Central Taiwan. Thirteen patients with bilateral PSP underwent bilateral VATS simultaneously or sequentially from July 1994 to December 2005. Results: Twelve males and one female, with age ranging from 15 to 36 years (mean 23.1 years), were treated with VATS for bilateral PSP, under the indications of bilateral pneumothoracis simultaneously (n=4) or sequentially (n=9). The interval between the first and second contra-lateral VATS procedure for non-simultaneous PSP patients ranged from 7 d to 6 years. Eleven of 13 patients (84.6%) had prominent pulmonary bullae/blebs, and underwent bullae resection with mechanical or chemical pleurodesis. The mean operative time was (45.6±18.3) min (range 25-96 min) and (120.6±28.7) min (range 84-166 min) respectively for the non-simultaneous (second VATS for the recurrence of contralateral side after first VATS) and simultaneous (bilateral VATS in one operation) procedures. There was no postoperative mortality. However, prolonged air leakage (>7 d) occurred in one patient (7.7%) who recovered after conservative treatment. The mean duration of chest tube drainage was 3.1 d and the median follow up period was 3.4 years. Conclusions: VATS is a safe and effective procedure in the treatment of bilateral PSP. Bilateral VATS is only recommended for patients with simultaneously bilateral PSP, because the incidence of recurrence, even with visible bullae, was not so high in my group and in some previous literature. Bilateral VATS in a supine position should only be used in selective cases, because of possible pleural adhesion or hidden bullae on the posterior side.     

Spontaneous Tumor Lysis Syndrome in an Infant: A Case Report

Tumor lysis syndrome has been observed in patients with malignancies with high cellular burden and high cell turnover, tumor sensitive to therapy, especially after initiating medical treatment. It very rarely occurs spontaneously. The case described here is of 6 months male infant who presented with fever since 1 month and loose stools associated with blood since 15 days. The laboratory investigations showed lactate dehydrogenase (LDH) of 6,192 IU/L and serum uric acid 18.2 mg/dl along with pancytopenia. The infant presented with electrolyte abnormalities and renal failure.     

不同年龄自发性高血压大鼠血管平滑肌Ca2+/CaM-PP活性变化

目的研究不同年龄自发性高血压大鼠血管平滑肌Ca2+/CaM-PP活性变化.方法应用酶活性测定方法,对12周、16周SHR大鼠和Wistar大鼠的A、MA、CA血管平滑肌Ca2+/CaM-PP进行活性比较.结果Wistar大鼠随年龄增长,Ca2+/CaM-PP活性呈上升趋势,而SHR鼠其阻力血管该酶活性降低,但随年龄变化不明显.结论①自发性高血压使阻力血管平滑肌Ca2+/CaM-PP下降,但12周与16周间无显著差异.②不同种鼠血管平滑肌该酶活性变化不同.     

中师英语说课案例——Book1 Unit 11 Dialogue

以课文《Askingtheway》为例进行教学设计。一、教材分析本节课讲授的《Askingtheway》,是山东省五年制师范学校英语统编教材第一册第十一单元的第一部分,是有关问路和指路的对话课,与生活密切相关;通过这段对话的学习,可以激发学生的学习热情,提高学生的口语能力,对提高学生的     

热力学第二定律的统计意义

势力学第二定律具有极广泛和深远的意义。本文从几率概含入手讨论热力学第二定律的微观本质。     

Old and exciting? Sport sponsorship effects on brand age and brand personality

Brand managers often use sport sponsorship to position a brand in terms of human-like personality traits (e.g., exciting or sophisticated) and demographic characteristics (e.g., young or masculine). Yet, little is known why, how, and under which conditions such associations transfer from a sport property to a sponsor brand. The present study introduces spontaneous trait transference as a mechanism and explicates that its properties can account for such associative transfer effects in typical sport sponsorship contexts with unintentional exposure and limited control. Two experiments show that, consistent with spontaneous trait transference predictions, (a) sport sponsorship transfers only the sponsored sports’ focal traits (but no general evaluative halo) to the sponsors, (b) spontaneous trait transfer occurs for both sport personality and age traits largely independent from each other, and (c) transfer effects occur for unfamiliar brands, but also (to a lesser extent) for familiar brands. Practical implications of these findings for the selection of sponsorship properties, the design of sponsorship communication, and for targeting specific consumer segments with appropriate sponsorships are discussed.     

高血压大鼠与正常大鼠左室流出道动作电位的分析

目的:为了研究高血压大鼠左室流出道电位的变化。方法:利用大鼠的离体心脏,采用常规玻璃微电极细胞内记录方法。观察静息电位(RP)、0相去极幅度(APA)、0相最大除极速度(Vmax)、复极时程(APD)以及复极50％(APD_(50))和复极90％(APD_(90))的时间。结果:高血压大鼠左室流出道诱发电位APD、APD_(50)、APD_(90)都明显高于正常同龄大鼠(P<0.01)。结论:高血压大鼠左室流出道动作电位复极时程延长。     

高校武术课中运用“自发组合群体”教学法的实验研究

通过文献资料法、教学实验法和问卷调查法,探讨了在武术选项课中采用＂自发组合群体＂教学方法给教学过程带来的活力.实验结果表明,这种方法不仅能缩短教学时数,提高教学进度,而且在＂自发组合群体＂内部学生通过合作学习,使学生交往能力得到提高,通过教学比赛可以提高学生的竞争意识,增强集体荣誉感,使大学生的社会适应能力得到全面发展,为今后的武术教学改革提供参考.