差示分光光度法测定牛黄类中成药中胆红素的含量

本文利用胆红素溶液在光照下易氧化变色及其吸收光谱发生显著变化的性质,在波长453 nm处,测其光照前后的吸收度差值(△A),△A与胆红素溶液浓度呈线性关系,对含牛黄的中成药(六应丸,六神丸和牛黄消炎丸)中胆红素进行了定量,并对其它组分进行了光照试验,排除了光照对其它组分的影响,从而确定了此法的可行性。     

An experiment in police-community relations: A small group approach

To study the effectiveness of group discussion in mitigating the rising hostility between police and residents of the urban ghetto, two 15-member groups of police and ghetto residents held weekly discussions, led and observed by university researchers, for 12 weeks. Attitude scales administered at the beginning and end of the study, as well as recorded logs of the meetings, reveal increased understanding and empathy between initially hostile and defensive participants by the end of the study. With increased awareness of each others' problems came an increased faith in the power of cooperation to solve problems. Police became more interested in attempting to affect the causes of problems than in serving merely as disciplinarians, and some of the community members began to attempt to instill in their neighbors a more friendly attitude toward the police.He directed the Police-Community Relations Pilot Project, which was funded by the Office of Juvenile Delinquency and Youth Development, U.S. Department of Health, Education, and Welfare, through the institute's Training Center in Youth Development. Mrs. Steinbruner, editor and evaluator for the training center, was a member of the pilot project staff. The participation of Dr. Kenneth Benne, Dr. John Cartwright, and W. Robert McClain, of the Boston University Human Relations Center, is gratefully acknowledged.     

急性淋巴细胞白血病(上)

急性淋巴细胞白血病是淋巴前体细胞异常引起的恶性疾病,儿童与成人均可能发生。儿童发病高峰2～5岁。有效治疗的稳步进展使本病在儿童中的治愈率80％以上,同时为新的治疗方案提供了良机,新方案将保留我们在白血病无病生存病例中获得的治疗经验,同时减轻当前强化治疗方案中的毒副作用。     

急性淋巴细胞白血病(下)

5 风险评估对病人的复发风险进行评估以确保只有高危病例才被施予极强治疗.研究表明采用成人方案治疗的青少年病人,其效果要显著差于使用儿童方案治疗的同年龄组.     

Kommerell's diverticulum and right-sided aortic arch: a cohort study and review of the literature

We report four consecutive cases of Kommerell's aneurysm of an aberrant left subclavian artery in patients with a right-sided aortic arch and the results of a systematic review of the literature. In our cohort of patients, three had an aneurysm limited to the origin of the aberrant subclavian artery, causing dysphagia and cough, and one had an aneurysm involving also the distal arch and the entire descending thoracic aorta, causing compression of the right main-stem bronchus. A left subclavian-to-carotid transposition was performed in association with the intrathoracic procedure, and a right thoracotomy was used in all patients. One of the patients underwent surgery with deep hypothermia and circulatory arrest, and the others with the adjunct of a left-heart bypass. The repair was accomplished with an interposition graft in two patients and with endoaneurysmorrhaphy in the others. The postoperative course was complicated by respiratory failure and prolonged ventilation in one patient, and one patient died because of severe pulmonary emboli. The survivors are alive and well at a follow-up of 1 to 3 years. Only 32 cases of right-sided aortic arch with an aneurysm of the aberrant subclavian artery have been reported: 12 were associated with aortic dissection, and 2 presented with rupture. Surgical repair was accomplished in 29 patients. A number of operative strategies were described: right thoracotomy, bilateral thoracotomy, left thoracotomy with sternotomy, sternotomy with right thoracotomy, and left thoracotomy. In only 12 cases was the subclavian artery reconstructed. We believe that a right thoracotomy provides good exposure and avoids the morbidity associated with bilateral thoracotomy or sternotomy and thoracotomy. We feel that a left subclavian-to-carotid transposition completed before the thoracic approach revascularizes the subclavian distribution without increasing the complexity of the intrathoracic procedure.     

冠心病患者实施健康信念模式干预效果评价研究

目的探讨冠心病（CHD）患者实施健康信念模式干预的效果。方法将140例CHD患者随机分对照组和干预组,各70例,对照组给予常规治疗和护理,干预组在对照组的基础上给予健康信念模式干预措施;比较两组的遵医行为、干预效果及生活质量评分。结果实施干预后,干预组的遵医行为备维度得分均明显好于对照组（P〈0．0.01）;干预组的各干预效果指标均明显好于对照组（P〈0．05）：干预组的生活质量各维度指标也明显好于对照组（P〈0．01）。结论CHD患者实施健康信念模式干预后,明显提高CHD患者的遵医行为和生活质量评分,干预效果明显。     

广州市2010年登革4型病毒的分离及其E基因进化分析

登革病毒(DEN)E蛋白在病毒与宿主细胞融合和诱导机体产生抗体等过程中发挥重要作用[1].本研究通过对分离株E基因全序列测定,从分子水平确定其型别,并与广州市历年同型DEN流行株及相关国际流行株进行同源性比较,构建系统进化树,追踪其可能输入来源.