高压锅的发明

当你用高压锅做菜蒸饭时,能节省时间1/2到4/5,你知道是谁发明了高压锅吗?发明高压锅的是法国物理学家、数学家、发明家丹尼斯·帕平,     

论连锁经营集团化

连锁商业近几年在我国发展很快，但是我国的连锁经营由于发展时间太短，存在着起点低、基础差、规模小等不足，发展水平也不高。本文从构筑连锁经营集团化的必要性，连锁商业发展中存在的问题和机遇，实施连锁经营集团化的对策等方面论述，从而阐明我国连锁商业发展的策略选择是连锁经营集团化。     

江浙发展高等教育的经验及其对江西的启示

江苏、浙江两省超常的经济发展夯实了高等教育超常发展的基础,大众化高等教育的初步实现又为实现经济发展注入了强大的实力。江浙两省加快发展高等教育具有很多好的做法和经验,两省全新的教育观念和针对省情的得力措施,是两省高等教育飞速发展必不可少的条件。江浙两省的经验对江西省高等教育的发展有很好的启示作用。     

计算机图形图像技术在医学中的应用

该文通过医学应用和研究领域几个有代表性的例子引入了计算机图形图像相关技术在医学中的应用,同时简单介绍了这些相关技术的概念、意义和发展。     

EFL teachers’ perceptions of English language policy at the elementary level in Taiwan

Due in large part to the trends towards economic globalization, English has become the most widely disseminated and ubiquitous international language. The purpose of the study was to investigate what Taiwan’s EFL teachers at the elementary level believe about the policy of English as a compulsory subject and how they perceive the benefits and obstacles of the policy’s implementation. Ten elementary English teachers in Tainan City and its suburban areas participated in this study. Data were collected through teachers’ interviews, classroom observation and document analysis. Results found that all ten teachers agreed with the policy for English as a compulsory subject at the elementary level. They observed both positive and negative sides of this top‐down policy. Classroom observation and interview data revealed that EFL teachers had to plan their English classes with the constraints on a large class of students with mixed levels of proficiency, limited teaching hours and resources. Parents’ expectations of and attitudes towards English learning also became an obstacle.     

马克斯·韦伯的经济伦理思想及其启示

马克斯·韦伯认为,西欧宗教改革形成的新教伦理及其传播生成了经济伦理,是资本主义理性经济行为内在冲动力的源泉.韦伯把西方资本主义过于理想化,但对隐藏在西方资本主义市场经济发展背后的伦理因素的发掘,仍发人深思.在社会主义市场经济条件下,我们应当注重人的现代伦理精神和伦理意识的培养,通过伦理调控来约束人欲,把获利的行为纳入到伦理规范和社会价值当中.     

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.     

面向就业的美国职业群课程模式探析

美国职业群课程模式以经济发展和就业需求为本，旨在培养学生的就业弹性和职业适应能力。实现其终身职业生涯发展。它以职业群分类和职业途径为依据，构建有序的课程体系。在实施过程中注重为学生制定系统的学习计划、加强职业指导服务和广泛建立合作伙伴，并逐渐开展了基于职业技能标准的课程评估。当前，职业群课程模式在联邦和州政府的管理和支持下得到了普及和推广，但也存在一些亟待克服的困难和问题。     

关于VFP教学过程若干问题的探讨

对VFP教学内容的组织、VFP教学的重点和难点、VFP教学过程的实践性环节等问题进行了探讨。     

杂交水稻苗期生长与~(32)P~(14)C在分蘖的分布

用放射性同位素示踪技术,测定早、晚季10多个杂交水稻及其亲本中~(32)P、~(14)C在分蘖的分布(％),并统计其分蘖数量与~(32)P、~(14)C的相关性。结果表明,多数杂交水稻的分蘖数量与~(32)P在分蘖的分布(％)呈显著或极显著正相关,而与~(14)C也呈正的相关性;杂交水稻的生长势(苗高、苗重、根长、根重),普遍比亲本和“双桂36”好;光合强度和根的呼吸强度,除L301A×R29以外,其余均较高。还讨论了杂交水稻分蘖力,分蘖数量与谷粒产量的关系,以及~(32)P、~(14)C在分蘖分布(％)作为预测杂种优势的可能性。