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 15 毫秒
1.
Research on alcohol, drugs and driving can be broadly separated into experimental and epidemiological studies. Every approach has its inherent advantages and disadvantages. Experimental studies can result in an interpretation by single cause, but can only identify potential risks, and the results can sometimes be of limited value because of the use of non-realistic doses or because of the drug use history or inter-individual differences of the volunteers. Recent studies have used higher, more realistic doses and paid more attention to the combination of alcohol and drugs and have shown that the chronic use of illicit drugs can be associated with some cognitive and/or psychomotor impairment, and can lead to a decrease in driving performance even when the subject is no longer intoxicated.Epidemiological studies include roadside surveys, studies in a subset of drivers, accident risk studies, responsibility analyses, surveys and pharmaco-epidemiological studies. Between studies, results may be incomparable due to testing different populations, different kinds of samples, etc. More large-scale roadside studies are conducted now.Advances in analytical toxicology have also contributed to a better understanding of the risks associated with driving under the influence. While older studies measured the inactive metabolite THC-COOH and did not show an increased risk in cannabis-positive drivers, more recent studies measured the active THC in blood and did show a concentration dependent increase in crash risk. The use of LC–MS/MS has allowed more broad-range screening as this technique can measure many different drugs in a small sample volume. While some older studies used saliva but had many analytical problems (including an insufficient sample volume in up to a third of the cases), newer methods of saliva sampling and analysis give better results. The use of saliva for roadside surveys allows non-invasive sampling, but the lack of correlation with the concentrations in blood makes interpretation of results difficult.The results of both epidemiological and experimental studies should be combined to obtain a good estimate of the impact of certain drugs on driving performance and accident risk. In 2006–07 a committee of international experts drafted guidelines for future research into drugs and driving. These have been taken on board by the DRUID project, a large-scale EU funded project on driving under the influence of drugs, alcohol and medicines.  相似文献   

2.
Interest in technology transfer across academic disciplines highlights this paper. We reviewed an abstracting service via computer for the years 1981 thru 1989, concentrating on publication titles that included any of four key terms: diffusion of innovation; intrapreneurshipl internal corporate venturing; and technology transfer. This computerized search located 828 pages in science and engineering and 1765 pages in the social sciences. In science and engineering, about 44% of the pages relate to specific cases of technology transfer, and about 27% have an international focus. The opposite is true in the social sciences: cases comprise about 25% of the pages, while 55% have an international focus. Economics, with 470 pages, dominates the writings within the social sciences, as well as elsewhere. In science and engineering, three areas published the most: electrical engineering (147 pages), agriculture (127), and multidisciplinary science (126). The findings suggest that researchers interested in technology transfer would benefit by adopting a multidisciplinary perspective. His experience in technology transfer includes work as a research aerodynamicist for Bell Helicopter Company. More recently he has focused on the marketing problems associated with new products from the federal laboratory system. He has been editor of the Marketing Educator.  相似文献   

3.
4.
5.
Nanotechnology offers a rare opportunity to study the early evolution of a new generic technology in real time. This paper suggests focusing more on the market formation side, rather than technology generation, when seeking to explain technology evolution. Applying an evolutionary capabilities perspective, the paper examines how firms organize innovation in the early embryonic stages of a technology and how the market as a selective device undergoes qualitative change as part of economic evolution. The traditional Danish window chain is used as a case. A model of nanotechnology evolution is proposed which suggests that nanotechnology commercialization is significantly driven by small and medium-sized firms based on their internal knowhow, with larger firms as important suppliers of know how. These smaller firms are adept at addressing social needs which appear to be key factors in the nano-commercialization process. A taxonomy of nine enterprise strategies for entry into nanotechnology is suggested. The paper identifies a marked shift in marketing strategizing among the nanotechnology innovative companies, from being “loud” around the turn of the millennium to becoming increasingly “silent” at the present time, illustrating the unconsolidated stage of the current nanotechnology market.  相似文献   

6.
The number of forensic autopsies in cases with violent and spontaneous deaths increases from 1984 to 1996 by 11.1 and 25.8%, respectively. The rate of increase in the incidence of violent deaths outstripped 1.6 times the total mortality values. This resulted in an essential increase in the work loading of experts, with an increase in the number of complex expert evaluations. The system of registration of violent deaths is imperfect: it does not provide accurate data on the number of murders and suicides, which are overrated at regional statistical departments in comparison with the records of legal organs, while the values recorded at statistical departments are notably underrated in comparison with forensic medical records. The authors offer amendments and revisions for the current form of medical certificate of death and the order of its filling, granting, and storage.  相似文献   

7.
Research and standardisation in nanotechnology: evidence from Germany   总被引:1,自引:0,他引:1  
Nanoscience and nanotechnology are science fields which are growing extremely dynamically. Germany occupies the top position in Europe and is only second to the US worldwide, which can be attributed to growing research promotion by the state. Based on a general conceptual framework on the role of different types of standards in the research process and technology life cycle, we argue that the market success of nanotechnology applications depends very much on the development of corresponding standards, which clarify not only terminology, measurement and testing methods, but also regulate safety and health aspects and specify interfaces. Other countries, European and international standardisation organisations have launched first initiatives rather early. However, Germany was not able to translate its excellent starting position in nanotechnology research into a leading position in standardisation initiatives, which pave the way for future commercialisation of nanotechnology and also the basis for the next generation of research activities. Based on a survey among stakeholders of German nanotechnology research, we are able not only to provide a first empirical validation of our conceptual model on the role of standards in the research process, but also to define the major problems at the interface between research and standardisation, and finally, to recommend possible options for their solution.
Knut BlindEmail:
  相似文献   

8.
9.
Trends in female criminality from 1960 to 1990 are examined. The main focus is UCR arrest statistics but other sources of evidence are also used. Major findings include the following: (1) relative to males, the profile of the female offender has not changed; and (2) the principal change in the female percentage of arrests involves the overall rise in property crime, especially minor thefts and frauds. The effects of broad-based legal and societal trends on female criminality are discussed and an agenda for research on the issue of female crime trends is proposed.  相似文献   

10.
11.
Inconsistent findings of attitude-behavior relations are commonly attributed to uncontrolled domain, time, or situational factors. Without integrative work, studies accounting for these factors may further complicate research by introducing potentially numerous third variables and render a coherent understanding of the attitude-behavior relationship even more difficult to achieve. In this paper, a developmental perspective is taken and the attitude-behavior relationship in delinquency is examined using three modes of investigation: multivariate patterns of attitude-behavior associations, their mutual predictability, and their developmental trajectories. Three grade cohorts of public school boys (n=1517 of the first, seventh, and tenth grades, initially) were followed over a period of 4 years, with an average age span of 7–16 years. Correspondence analyses suggested that adolescent boys with a tolerant attitude toward theft or violence were more deviant than those who had actual behavior of theft or violence. Stronger attitude effect on subsequent behavior, relative to behavior effect on subsequent attitudes, was found among boys aged 10–12 years. While mean scores of tolerant attitudes to serious theft and violence increased linearly with their behavior counterparts between 6 and 17 years of age, ages 11 and 14 were two turning points at which most delinquent attitudes and behaviors escalated at a higher speed. In general, delinquent attitudes and behaviors were related to each other in various patterns, and age was a defining factor that provided much of the explanation for the inconsistencies in research findings.  相似文献   

12.
Conclusion This paper has been a review of some current issues in research to monitor conciliation and mediation in matrimonial disputes. We have argued that although the main faults of the Lord Chancellor's Department'sReport of the Inter-Departmental Committee on Conciliation have been well identified by critics, some of the criticisms are unnecessarily harsh and unfair. Second, we have pointed to the major weaknesses of research to date on conciliation. These are: (a) the absence of convincing controls to conciliated clients; (b) the lack of consumer research. We have suggested an aggressive research design to overcome the first of these problems and argued against theprima facie ethical objection to it. Finally, we have reviewed the issue of confidentiality of information in relation to research needs. We have suggested that a reluctance to betray confidences can not only be seen as part of a general adherence to the informed consent principle, but that, for us, it forms part of a general attitude to research that treats clients as responsible partners in the acquisition of knowledge and insight.With these three themes in mind we look forward to research into conciliation that is (a) more convincing than the Robinson report; (b) more adventurous in tackling the problems of legitimate inference of the cause/effect type; (c) sensitive to ethical issues without being unnecessarily timid.  相似文献   

13.
This paper investigates the effectiveness of university research centers as a Science and Technology policy mechanism. Using the case of nanotechnology, it assesses if establishing dedicated research centers at universities influences their patterns of knowledge production, and specifically the production of commercially relevant nano-knowledge. Based on bibliometric data on patents and publications for a panel of the top patenting US universities (n = 82), the study finds that nano-centers positively impact nano-patent production at universities. Policy and theoretical implications are discussed.  相似文献   

14.
A bibliometric analysis was performed to explore the current research status and development trends for missing persons globally and in East Asia and to identify research hotspots and frontiers relating to this topic.A search was conducted to identify relevant literature on missing persons using the Web of Science Core Collection database for the period 2000-2021.Subsequently,a knowledge map was constructed using CiteSpace software to perform a visual analysis of the distribution of authors and institutions,journals,and national/regional distribution;citation frequency;high-frequency keywords;and emerging research hotspots.The results showed firstly that discussions on missing persons and related topics in East Asia are held at the regional scale.There is a paucity of research on this topic,which has been conducted on a limited scale,lacks depth and possibly innovation,and entails limited discussion in this region.Secondly,there is a lack of social science research on missing persons and related topics worldwide.Thirdly,relevant research in East Asia should continue to preserve its own characteristics,effectively addressing current issues and enabling more people to participate in social science-oriented discussions focusing on the topic of missing persons.This approach provides a promising direction for pursuing the sustainable development of the topic of missing persons.  相似文献   

15.
Great advances have been made recently in searching for individual identification single-nucleotide polymorphisms (IISNPs or IDSNPs). Such SNPs as suggested by SNPforID scientists and by Pakstis et al., are promising, although they were selected from older or smaller databases rather than the most recent database. Here, we describe a new computational strategy for developing IDSNPs based on HapMap. We searched through HapMap r27 for SNPs having minor allele frequencies ≥0.30 in all its 11 populations and found more than 1881 qualified SNPs. We examined 96 of them with 183 DNA samples from three Chinese populations using Illumina arrays. The average allele frequency for these 96 SNPs among the three populations was 0.495/0.505, the average number of identical SNP genotypes shared by two individuals among the 14 populations (three Chinese and 11 HapMap) was 37.9, and the random matching probability for two unrelated Hans to match in all 96 genotypes was 9.793 × 10(-39). Thus, most of these 96 SNPs are universally applicable.  相似文献   

16.
17.
18.
This paper aims at examining the collaborative networks established during the seven Framework Programmes on Research and Technological Development (1984–2009). These networks are the result of self-organized partnering by different participating entities (industry, universities, research centers and technology users) in subsidized research joint ventures selected on a competitive basis under the thematic priorities and funding rules imposed by the European Union. Social network analysis tools are employed in order to describe and assess the architecture, and the dynamics of the networks that were developed in the context of each Framework Programme. Analysis of organizations’ positioning in the network space will show whether there are some pivotal actors with significant policy implications for knowledge and technology transfer. Last but not least, understanding how these network are formed and how they have evolved over time may provide useful policy implications for the design and structure of the current and future EU Programmes aimed at shaping and creating a unified European Research Area.  相似文献   

19.
This research examines the association between intellectual property (IP) and whitecollar crime (WCC), and identifies future research that might benefit policymakers; federal, state, and local agencies; and the general public. Research methods include a review of literature, a review of information and data in IPR violations and WCC, and inquiry in areas that directly deal with IP laws and enforcement practices, such as law enforcement agencies, IP-based industries and private law firms.  相似文献   

20.
Nanotechnology has attracted significant research, funding, and policy activity in recent years in the US and many other countries. Of particular interest are the locational characteristics of this emerging technology. This study examines the emergence of nanotechnology in the US South to explore questions of regional standing and spatial trajectory, using an exploratory multi-indicator approach. Our research employs an array of 10 indicators of knowledge generation, human capital, R&D funding, and patenting, to uncover developments, clusters, and linkages in nanotechnology emergence. Results indicate that although there is nanotechnology activity in every state in the US South, this activity agglomerates in a few locations. One emerging nanodistrict (North Carolina’s Research Triangle) has prior strengths in high technology research and commercialization, especially based on biotechnology; but other districts (e.g., Oak Ridge Tennessee and Atlanta, Georgia) that have strengths in certain aspects of the nanotechnology research ecosystem have weaknesses in commercialization. The study illustrates how multi-indicator approaches can be developed from existing databases, using customized search techniques, and how the insights from multi-indicator measurement can be used to provide insights for research and innovation policy.
Philip ShapiraEmail:
  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