首页 | 本学科首页   官方微博 | 高级检索  
相似文献
 共查询到20条相似文献,搜索用时 78 毫秒
1.
《内江科技》2019,(2):82-83
目的:评估内江市恶性肿瘤的死亡状况及其分布规律,为肿瘤防治及卫生决策提供依据。方法:从内江市全人群死亡登记报告系统中导出2017年全市恶性肿瘤死亡数据,通过专用分析软件汇总分析。结果:2017年内江市恶性肿瘤死亡6019人,死亡率144.99/10万,男性死亡率高于女性,恶性肿瘤死亡率随年龄的增长而增加,85岁及以上年龄组有所降低,前5位单病种死因为肺癌、肝癌、胃癌、食管癌、结直肠和肛门癌,男性与女性单病种恶性肿瘤前五位死因一致,顺位有一定差别。结论:恶性肿瘤是人群死亡的主要死因之一,严重威胁着内江居民的身体健康,控制恶性肿瘤的发生发展刻不容缓,健康教育是直接而有效的手段。  相似文献   

2.
《百科知识》2011,(24):1-1
事件 肺癌是目前癌症死亡中的"第一杀手",与30年前相比较,我国肺癌死亡率上升了46.8%,占全部恶性肿瘤死亡的22%。2000年至2009年,北京肺癌发病率增长56.35%,癌症患者中有五分之一为肺癌患者。肺癌死亡率从上世纪60年代至今上升了许多,但与肺癌密切相关的吸烟率却在下降。面对快速增长的肺癌发病率和不断增多的灰霾天气,我们不禁要问:问题究竟出在哪儿?  相似文献   

3.
2000年以来,城市恶性肿瘤死亡人数占总死亡人数的比重,从70年代初的16.25%上升到24.38%.在众多死因分类构成中高居首位。显然,恶性肿瘤已成为威胁人类生命健康的“第一杀手”。为此,无数医务工作者、医学研究人员、医疗或研究机构和单位,前赴后继,殚精苦研,力争在各种恶性肿瘤的治疗上取得新的突破。”让人们不再谈癌色变”  相似文献   

4.
胃癌是我国最常见的恶性肿瘤之一,在所有癌症死亡人数中占第一位,有“第一癌症”之称。胃癌死亡率男性约为21/10万,女性约为11/10万。发病年龄以40-60岁居多,但近年来青年胃癌发病率有升高趋势,我国西北、东北、内蒙古、华北、华东等地是胃癌的高发区。  相似文献   

5.
随着传染病逐渐被控制,恶性肿瘤——癌症对人类的威胁日益增大。世界卫生组织估计,在全世界50多亿人口中平均每年死于恶性肿瘤者达690万人,新发病率约为870万例:1999年患病例为3710万例,数字还在逐年增加。据世界卫生组织1997年年度报告,1996年全球因癌症死亡的有630万人,约占总死亡率的12%。癌症已成为仅次于心血管疾病的第二大死因。从卫生部疾控司获悉,目前我国每年癌症的发病人数约为200万,死于癌症的人数超过140万。值得注意的是,农村地区及西部地区癌症的上升速度明显高于城市及全国的平均水平,很多癌症的高发地区都在农村。  相似文献   

6.
宁旭 《金秋科苑》2011,(24):143-146
目前癌症的发病率不断升高,据1996年统计全世界每年死于恶性肿瘤的约700多万人,并有1000多万新发癌症病人,我国每年癌症发病人数约160万人,癌症死亡人数约130万人。34~54岁年龄阶段癌症是第一死因,55~74岁的年龄阶段仅次于心脏病。而且癌症的发病人数及死亡人数还在逐年上升。癌症的死亡率相当的高,人们都处于谈癌色变的恐惧状态。为此肿瘤的预防、诊断及治疗越来越引起世界各界的重视。  相似文献   

7.
杨昆 《百科知识》2002,(10):41-42
白血病又名血癌,是由于造血干细胞增殖分化异常而引起的恶性增殖性疾病,它不仅影响骨髓及整个造血系统,并侵犯身体其他器官,是一种死亡率极高的病症。我国白血病发病率为276/10万。在恶性肿瘤死亡率中,男性血癌患者死亡率居第六位,女性死亡率居第八位,在儿童中则居第一位。  相似文献   

8.
乳腺癌的发病率在国内外都呈上升趋势。据上海调查表明,乳腺癌的发病率已从10年前的23/10万迅速上升到37.2/10万,由女性肿瘤发病率的第7位跃居首位,其发病的高峰年龄组由45~60岁拉长到35~70岁。引起乳腺癌的因素甚多,其中70%与环境污染有关。此外,还有许多诱发因素,  相似文献   

9.
丁洁 《百科知识》2022,(27):31-32+65
<正>肝癌,相信大家都不陌生,它臭名昭著,甚至被称为“癌症之王”。近年来,这种肝脏的恶性肿瘤的发生率呈现逐年上涨的态势,在所有癌症中排第四位。前三位分别为肺癌、胃癌及结直肠癌。尤其值得注意的是,肝癌不仅发病率高,死亡率也高,因肝癌造成的死亡人数占所有癌症死亡人数的第二位。因为早期肝癌的检出率非常低,是名副其实的“无声杀手”。  相似文献   

10.
2008年4月公布的第三次全国死因回顾调查结果表明,中国城乡居民的癌症死亡率在过去30年中增长了8成以上,目前每4到5个死亡的中国人中就有1个死于癌症。中国每年死于癌症的总人口接近200万……  相似文献   

11.
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors.  相似文献   

12.
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007.  相似文献   

13.
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction.  相似文献   

14.
Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies.  相似文献   

15.
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means.  相似文献   

16.
Long-standing conflict between domain name registrants and trademark holders prompted the Internet Corporation for Assigned Names and Numbers (ICANN) to create a global, mandatory arbitration procedure known as the Uniform Dispute Resolution Policy (UDRP). The UDRP has been used in 2166 cases involving 3938 domain names as of 1 November 2000. The policy gives the initiator of a complaint, generally a trademark holder, the right to choose which ICANN-accredited dispute resolution service provider (RSP) will handle the case. During the preparation of the UDRP,some feared that complainant selection would lead to "forum shopping" that might bias the results. This article performs a statistical assessment of the forum-shopping thesis and finds support for it. There are statistically significant differences in the various RSPs' propensity to take away names from defendants; there are also major differences in the number of cases brought to each RSP. RSPs who take away names have the larger share of cases. The study examines other variables that might explain differences in market share, such as price, the plaintiff's nationality, or the time taken to decide a case. It finds that nationality and time also are correlated with market share. The study concludes that shopping for a favorable outcome is an important factor in the UDRP.  相似文献   

17.
Prof. Raymond C.K. Chen, a neuropsychologist with the CAS Institute of Psychology, has made novel progress in his studies of schizophrenia. His work has been reported by a recent issue of Behavioural Neurology.  相似文献   

18.
<正>In Xishuangbanna,one of China’s most biodiverse regions,landscape has changed dramatically during the past three decades due to the conversion of tropical rainforest to rubber plantations.In steep areas,terraces are often constructed before planting rubber trees,which causes two important changes in the soil:the destabilization of soil in the bench terraces and the increased vulnerability of unvegetated riser faces to erosion.Few studies have documented the nature and intensity of erosion on bench terraces.Prof.LIU Wenjie and his colleagues from the Xishuangbanna Tropical Botanical Garden(XTBG)conducted a study in Menglun County(21°5′39″N,101°15′55″E),Xishuangbanna to evaluate the influence  相似文献   

19.
<正>Chinese scientists plan to apply Earth Observation technologies to protect the critically endangered wild camels(Camelus ferus).With the help of remote sensing,satellite positioning,geographical information system and wireless sensors networks,they will be able to access the distribution and population of the wild camels and protect their habitats.The project will be carried out by the International Research Center for Wild Camel Conservation,which was jointly established earlier this year by the Institute of Remote Sensing and Digital Earth(RADI)of the Chinese  相似文献   

20.
<正>The Paul Gerson Unna Research Group on Dermatogenomics was founded in October 2012 at the Partner Institute for Computational Biology.The ultimate goal of the group is to understand the biology of skin and skin appendages.  相似文献   

设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号