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1.
目的：探讨预防性治疗在大学生结核病防治中的效果。方法：对该市5所大学2000-2001年入学新生18950人进行PPD试验，PPD试验阳性且胸部X线检查正常的学生进行预防性治疗。将学生分为治疗组和对照组，治疗组给予利福喷汀和力克肺疾每周2次；肝泰乐每日3次，连续3个月。观察3年的发病情况。分别计算发病率。结果：参加学生3457人，其中有1875名学生参加了治疗，完成率92．96％，不良反应率1．22％。三年中治疗组发生结核3例，年均发病率53．33／10万；对照组1582名发生结核11例，年均发病率231．77／10万。两组的年发病率有显著性。结论：大学生中进行的该结核感染预防性治疗有效、可行。 相似文献
2.
探讨ABCA1基因M883I多态性在福建汉族女性中的分布特点及其与子痫前期患者体内ABCA1蛋白表达、血脂水平的关联性。研究对象400例,包括正常对照组、子痫前期病例组各200例。采用PCR-RFLP法测定ABCA1基因外显子区M883I在病例组及对照组中的多态性分布特点,ELISA法测定ABCA1蛋白表达水平,并检测血脂水平。结果:ABCA1基因M883I多态性对子痫前期的发病率无显著影响,但子痫前期患者中MI+II基因型血清ABCA1蛋白浓度及外周血HDL-C、Apo A1均明显高于MM基因型,差异显著(P<0.05)。结果表明:ABCA1基因M883I在福建汉族女性中,I等位基因可提高血清中ABCA1蛋白的表达,使血液中HDL-C及Apo A1水平升高,从而降低了子痫前期合并血脂代谢紊乱的风险性。 相似文献
3.
目的：了解奉新县性病流行现状,为制定控制性病的应对措施提供科学依据。方法：对2006-2008年奉新县报告的所有性病病例资料进行流行病学分析。结果：2006-2008年奉新县共报告性病数为312例,其中男性141例,女性171例,年龄最小的为胎儿,最大的80岁,主要集中在20-49岁这一年龄段,约占全部性病病例数的86.86%,2006-2008年报告性病发病呈上升趋势,由2006年的71例（发病率为23.67/10万）增至2008年的124例（报告发病率为40.25/10万）。结论：我县性病已成为较严重的公共卫生问题,应采取有力的应对措施控制性病流行。 相似文献
4.
目的：探讨口腔不良习惯造成危害及纠正。方法：回顾性分析几年来我科收治的口腔正畸病例中126例口腔不良习惯。结果：不良习惯矫治时间最短半年，最长4年，平均一年半。结论：不同口腔不良习惯造成相同错番畸形，相同的口腔不良习惯造成多种不同的错番畸形。矫治时患者要有正确认识，有敷力纠正不良习惯，以及对外因的治疗和矫治器矫治。 相似文献
5.
目的：研究奉新县尖锐湿疣的发病现状及流行特点,为控制尖锐湿疣的流行制定对策提供科学依据。方法：对奉新县所有开展皮肤性病诊疗的医疗机构收集尖锐湿疣的新发病例,其确诊采用肉眼观察、醋白试验与病理活检相结合的方式进行。结果：全县31.7万人口中,半年内尖锐湿疣新发病人数42例,年发病率26.5/10万,其中男性32例,女性10例,男性发病率高于女性;42例患者中年龄最小的18岁,最大74岁,主要集中在25-34岁这一年龄段;职业分布以无业人员最多;患者的文化程度、经济收入分别以高中/中专和500-2000元/月为主。结论：奉新县尖锐湿疣发病率在全国同类地区处于较低水平,及时加强卫生宣教并采取有针对性的措施是其当前控制尖锐湿疣流行的重要手段。 相似文献
6.
分组分解法是《因式分解》这一章的一个难点，学习这一单元时，同学们的困难在于：不知道为什么要分组，分组的目的是什么，以及怎样分组？下面就这些问题作初步分析和探讨，供同学们参考．先看下例：例1分解因式：a’－Zab＋b‘Wac一优．从整体上看，既无公因式可提取，又不能用公式法分解因式，同时也不能用十字相乘法分解因式．因此，我们应从局部去考虑问题，即把这个整体分为几个局部（即分为几组），使每一个局部可分解因式．例如，我们将原式分为这样两组：原式一（a’－Zab＋b2）＋（ac－be）．此时，第一组可用公式法分解为（。… 相似文献
7.
目的：为了解宜春市袁州区1990－1999年钩端螺旋体病的流行特征，方法：对袁州区1990－1999年疫情资料进行描述性流行病学分析，结果与结论：宜春市袁州区1990－1999年共发生钩端螺旋体病3174例，死亡40例，年发病率为36．91／0万，年均病死率为1．26％，农民为主要发病人群，男女之比为2．34：1，7至9月为发病的高峰月，发病人群均有稻田劳动史，大搞爱国卫生运动，防鼠灭鼠，生猪圈养，对钩端螺体易感人群接种钩体疫苗，能够有效地降低钩端螺旋体病的发病率。 相似文献
8.
许金城 《教学与研究(南京)》2002,23(2):54-57
本利用河北定兴机场1981－2000年共20年的天气资料，对蒙古气旋进行了统计分析，从而揭示了它的出现频数，移动规律及其对涿保地区天气的影响，并在此基础上对蒙古气旋生成、移动和减弱、消失等进行分析预报。 相似文献
9.
90年代以来，疯牛病席卷大不列颠岛的英国养牛业，发病率逐年上升，使英国养牛业遭受巨大损失．并很快影响到英国食品工业、出口贸易、旅游等各行业，疾病所造成的社会经济各方面的影响正不断扩大。一、疯牛病的发生历史疯牛病是牛海绵状脑病的俗称。英文缩写为BSE。由于疾病后期患牛主要症状表现为震颤、运动失调、感觉过敏等神经症状，故称疯牛病。1985年在英国发现首个病例，之后逐年增加。到1989年底一个月发生1200例，一年被证实的病例占成年牛的3．9％。1995年在英国已证实有10～15万个病例。二、病原引起BSE的病原称BSE因子．类… 相似文献
10.
目的：探讨鼻内镜下应用双极电凝治疗顽固性鼻出血的临床效果。方法：回顾性分析我科2000．10-2004．4月在鼻内镜下应用双极电凝治疗顽固性鼻出血66例的临床效果。结果：全部病例均经一次电凝治疗获得成功，治愈率100％，随访4个月～4年未见复发。结论：鼻内镜下应用双极电凝治疗顽固性鼻出血简便、安全、有效，应作为治疗顽固性鼻出血的替代传统疗法的常规方法。 相似文献
11.
The present study examined the nature of the “avoidance” response in goldfish under the linear presentation procedure (Zerbolio, 1981). With this procedure, shuttling behavior occurring during the presentation of the trial stimulus produces either CS? or CS+, and further occurrence of shuttling within the trial interval (10 sec) changes the value of CS from negative to positive, or vice versa. If the fish remains in the compartment when the prevailing cue state is CS? at the end of the interval, shock can be avoided. With this procedure fish responded to the CS+ more than to the CS? and avoided shock. But fish in one of two control groups, in which responses had no effect in changing the cue state from CS+ to CS?, or vice versa, also showed a clear differentiation. The results were generally in line with the view that the “avoidance” response in fish is acquired through classical conditioning. The contribution of classical conditioning to the acquisition of avoidance response is discussed. 相似文献
12.
刘林 《襄樊职业技术学院学报》2012,11(3):48-50
目的评估个性化护理对糖尿病患者血糖控制的干预作用,探索控制血糖的有效措施。方法回顾性分析2000-2010年糖尿病患者100例,其中2000-2005年50例为对照组,2006-2010年50例为实验组。对照组给予常规护理,实验组系对糖尿病患者在常规护理的基础上再给予针对性的个性化护理。两组均随访3个月,收集检查数据,并进行血糖控制情况的评价。结果对照组与实验组血糖水平比较差异有统计学意义（P〈0.05）,提示实验组血糖控制优于对照组。结论个性化护理干预更有助于糖尿病患者的血糖控制。 相似文献
13.
Elizabeth M. Goetz Ann P. Turnbull Marion O'Brien 《Early Childhood Education Journal》1984,11(4):31-36
Working parents and day care are here to stay. By 1990, the United States will have an estimated 24.3 million children under six years of age, a 36% increase from 1979. At least 10.5 million of these children will be members of two wage-earner or single working-parent families, a 63% increase since 1979 (Edelman, 1981). Furthermore, by the year 2000 the typical family will have two wage earners (Menninger, 1981).Elizabeth M. Goetz is director of the Edna A. Hill Child Development Laboratory. Ann Turnbull is acting Associate Director of the Bureau of Child Research. They are both professors at the University of Kansas in Lawrence. Marion O'Brien is acting Director of the Infant Development Study Center at the University of Kansas in Lawrence. 相似文献
14.
通过对最近十年来国内关于英语写作教学中有关时间因素研究状况的文本研究发现,国内关于英语写作教学中有关时间因素的研究多为实验研究,根据研究对象的不同,可整理为以高中生为对象的研究和以大学生为对象的研究。 相似文献
15.
谢朝武 《华侨大学学报(哲学社会科学版)》2010,(3):74-82
识别酒店盗窃案件的发生特征是构建有效管理体系的基础。研究搜索和遴选了我国2000-2009年等10年间的酒店盗窃案件130起,通过案例信息的分解、编码构建案例数据库,通过对案例信息的统计来分析酒店盗窃案件的发生特征。并据此构建了针对酒店盗窃案件的管理体系,认为应从保安系统优化、全员防盗、时间管理、场所管理、服务管理和顾客管理等六个层面展开防盗工作。 相似文献
16.
Miles A. Kimball 《Technical Communication Quarterly》2006,15(1):67-86
This article examines two cases of technical documentation occurring outside of institutions. Using a framework derived from de Certeau's (1984) distinction between strategies and tactics and Johnson's (1998) concept of the user-as-producer, I analyze communities surrounding Muir's (1969) How to Keep Your Volkswagen Alive! A Manual of Step by Step Procedures for the Compleat Idiot and Champion's (2000) Build Your Own Sports Car for as Little as £250. These communities engage in tactical technical communication, especially in the form of technological narratives that participate in broader cultural narratives about technology. 相似文献
17.
This paper examines the reading attainments of a sample of Year 2 children who had one of three types of preschool experience. The results of a 4‐year cross‐sectional study of a sample of all Year 2 children (n = 834) from six randomly selected primary schools within one Local Education Authority (LEA) are presented. The children had attended nursery or playgroup or experienced no preschool provision outside the home: they were not matched for social background. Pupils’ scores on The Primary Reading Test (PRT) [France, N. (1981) The Primary Reading Test (Windsor, NFER/Nelson] are compared over the 4 years, as are the reading Standardised Assessment Task (SAT) scores of the last two cohorts. Results are not clear cut. For 3 of the 4 years, the group with no‐preschool experience performed significantly less well than at least one of the other two groups with some type of preschool experience on the PRT. The SAT levels of nursery children were significantly higher than those of the other two groups. Conclusions, based on such a small study, are tentative. It appears that preschool provision has an effect on children's reading attainments and that this is still significant in Year 2. The validity of the SAT is considered as a factor in the relative reading attainments of the three groups. 相似文献
18.
Don Williams 《Higher Education》1982,11(5):521-529
Upheavals in Poland during 1980–1981 included proposals for some dramatic changes in its system of higher education. Taking advantage of the momentum for change created by Solidarity and using the strike weapon where necessary, academics and students produced temporary changes which in some cases represent a complete reversal of previous policies. By studying these changes one obtains a view of some of the directions socialist higher education in Eastern Europe might take if the opportunity permitted.Author's Note: The account that follows results from a sabbatical spent in Poland during the early months of 1981. It reflects the reading I did and the impressions I gained while there. Any conclusions reached are my own and should in no way reflect on the people of Poland who hosted my highly stimulating stay there. 相似文献
19.
生产实践和理论分析表明，影响齿轮工作平稳性的主要因素是齿轮的基节偏差△fpb和齿形误差Affa基节偏差会引起一对齿过渡到另一对齿啮合传动比的突变；齿形误差会引起每对齿啮合过程中传动比的瞬时变化。两者都是齿轮一转中多次重复出现的小周期误差，会产生振动和噪音，影响齿轮传动的平稳性。滚齿时被切齿轮的基节偏差较小，而齿形误差通常较大，该文全面分析了滚齿过程中二种误差的成因及控制方法。 相似文献
20.
《British Educational Research Journal》2003,29(5):731-747
Abstract The article considers the perceived prevalence of special educational needs in English primary schools and changes in this prevalence over two decades and relates these to issues in education policy, teacher practice and the concept of special educational needs. The studies considered are two major surveys of schools and teachers, the first conducted in 1981 and the second conducted in the same schools in 1998. Important features of both studies were their scale and the exceptionally high response rates achieved. Two central findings were the perception of teachers that special educational needs were widespread and of an increase in special educational needs over time: perceived levels of special educational needs were one in five children in 1981, which had risen to one in four children in 1998. Learning difficulties were by far the most common aspects of special educational needs but many children had multiple difficulties, and behavioural difficulties were seen by teachers as the main barriers to inclusion. The very high figures for prevalence raise questions about the continued usefulness of the concept of special educational need distinct from broader issues of achievement. 相似文献