Differentiation of Motor Activity of Normally Active and Hyperactive Boys in Schools: Some Preliminary Results

All non-task-related body movements during school hours were listed in 11 normally active and 12 hyperactive boys. The mean number of movements was 48 +/- 7 per 45 minutes in the normal actives and 79 +/- 16 per 45 minutes in the hyperactives. The rather monotonous increment and decrement of motor activity during the 4-hr registration period was noticed only in hyperactive boys. These results could be a consequence of a circadian rhythm, as there was independence of type of school hours and of teacher personality. The cyclical level of activity in hyperactive boys was sometimes in the range of the normal actives.     

缺氧对卵巢癌细胞Caov-3转移特性的影响

目的探讨缺氧条件对卵巢癌细胞Caov-3体外黏附和迁移能力的影响。方法在常氧和缺氧条件下培养卵巢癌细胞Caov-3,分别用四甲基偶氮唑蓝(MTT)比色法和细胞迁移试验测定常氧和缺氧条件下培养的Caov-3细胞体外黏附和迁移能力。结果缺氧条件下,Caov-3细胞在Matrigel和纤维连接蛋白Fn基质上黏附数量增加,黏附促进率分别为17.1%和15.2%,与常氧条件下比较有显著性差异(P<0.05)。缺氧条件下,Caov-3细胞在Matrigel基质上迁移距离增大,分别为258.8±19.5μm和331.3±24.4μm,迁移促进率为28.0%,与常氧条件下比较有显著性差异(P<0.05)。结论缺氧环境对卵巢癌细胞Caov-3体外黏附和迁移具有明显的促进作用。     

腹腔镜下良性卵巢囊肿手术50例探讨

目的探讨腹腔镜下卵巢囊肿手术的适应证及手术技巧.方法腹腔镜下行卵巢囊肿剥除术、卵巢-卵巢囊肿切除术和输卵管-卵巢切除术50例.结果卵巢囊肿剥除术46例（92%）,卵巢囊肿切除术2例（4%）,输卵管一卵巢切除术3例（6%）.手术时间30～120min,平均58min.术中出血＜20ml,无中转开腹者,无气栓、出血、感染等严重并发症发生.术后病理诊断：卵巢巧克力囊肿23例（46%）、良性畸胎瘤10例（20%）、卵巢冠囊肿8例（16%）、黄素囊肿5例（10%）、浆液性囊肿3例（6%）、纤维瘤1例（2%）.结论腹腔镜手术治疗良性卵巢囊肿具有微创手术的优点.     

Pitfalls in diagnosis of aortic dissection by angiography: Algorithmic approach utilizing CT and MRI

Dissection of the thoracic aorta is a life-threatening event requiring imaging studies to define the level of the tear and the intinmal flap. The “gold standard” has been angiography. This method may fail to demonstrate the dissection, however, due to overlap of the true and false lumens or a very thin flap that is imaged en face rather than tangentially. Computed tomography has a diagnostic accuracy of 95%, but can fail to image the dissection due to technical factors or a thrombosed false hunen. Magnetic resonance imaging requires a hemodynamically stable and cooperative patient. A diagnostic algorithm is proposed for diagnosis of aortic dissection based on renal function and the surgeon's imaging modality preference.     

早产儿静脉补钙的护理体会

目的:探讨早产儿静脉补钙的护理。方法:回顾性分析总结38例早产儿静脉补钙的临床观察和护理体会。结果:38例早产儿静脉补钙均未发生皮下组织的坏死与钙化灶。结论:高度认真负责,细心观察和护理,早预防,早发现,早期干预,及时有效处理,是避免钙剂外渗,促进好转的关键。     

Measuring staff perceptions of challenging behaviour: the Challenging Behaviour Attributions Scale (CHABA)

Causal attributions may interact with other variables to determine staff responses to challenging behaviour. Furthermore, staff perceptions of the causes of challenging behaviour are likely to change as a result of theoretical and practical training. However, there is no established simple method for measuring staff attributions that could facilitate research in these areas. The present paper describes the development and preliminary psychometric analysis of the Challenging Behaviour Attributions Scale (CHABA).     

干下漏斗部室间隔缺损的外科治疗

４６例干下漏斗部室间隔缺损，占同期室缺手术治疗的２３．２％（４６／１９８）。缺损位于肺动脉瓣下３４例，漏斗部１２例。用带垫片褥式缝合修补２１例，补片修补２５例。全组无死亡。术后直接缝合组有主动脉关闭不全２例、残余分流２例，残留杂音３例。笔者认为，适时手术，选择适当的进路、应用补片修补、正确判断和处理主动脉瓣病变及对合并肺动脉狭窄者予以流出道补片加宽，是提高本病手术疗效的关键。     

高原地区妇女卵巢激素功能的改变

本文对撒拉、土、回、蒙、藏、汉６种民族２７６６名已婚妇女进行阴道脱落细胞检查。其中对不同民族生育期妇女筛选６００例，ＨＥ·巴氏染色，计数阴道涂片的底层细胞比例，结果提示：卵巢激素功能轻度低落占３８％，中度低落占１４．６６％，高度低落占０．５％，并与地区、民族、年龄分布不同有关。推测高原低氧对卵巢激素功能低落有一定的影响。     

Does acute-phase beta-blockade reduce mortality in acute myocardial infarction by limiting infarct size?

The mechanism by which early intervention with beta-blockers reduces mortality in acute myocardial infarction is unclear. Therefore the effects of intravenous, followed by oral, metoprolol on indices of infarct size were studied in a double-blind fashion with a median delay of 6.75 hours from onset of symptoms. In 129 patients peak enzyme release and QRS score on the electrocardiogram were assessed, while myocardial perfusion score on thallium-201 scintigraphy was studied in 45 patients. There was a close correlation between all the indices of infarct size. While the correlation coefficients did not appear to be influenced by metoprolol treatment, the slope of the regression was affected. Peak aspartate aminotransferase and lactic dehydrogenase were lower by 11 and 7%, respectively, in the metoprolol-treated group, but no reduction was noted in QRS score or in thallium-201 perfusion defect size in the actively treated group. Thus, it seems likely that early intervention with metoprolol in acute myocardial infarction reduces mortality, not by limiting infarct size, but by some other mechanism.