全文获取类型
收费全文 | 66篇 |
免费 | 1篇 |
国内免费 | 2篇 |
专业分类
安全科学 | 6篇 |
环保管理 | 19篇 |
综合类 | 18篇 |
基础理论 | 10篇 |
污染及防治 | 10篇 |
评价与监测 | 2篇 |
社会与环境 | 4篇 |
出版年
2022年 | 2篇 |
2021年 | 2篇 |
2020年 | 1篇 |
2018年 | 2篇 |
2017年 | 1篇 |
2016年 | 1篇 |
2015年 | 1篇 |
2014年 | 2篇 |
2013年 | 3篇 |
2012年 | 6篇 |
2011年 | 4篇 |
2010年 | 4篇 |
2009年 | 6篇 |
2008年 | 3篇 |
2007年 | 5篇 |
2005年 | 1篇 |
2003年 | 2篇 |
2002年 | 2篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1996年 | 1篇 |
1994年 | 1篇 |
1993年 | 1篇 |
1992年 | 1篇 |
1990年 | 1篇 |
1989年 | 1篇 |
1988年 | 3篇 |
1982年 | 1篇 |
1981年 | 1篇 |
1976年 | 1篇 |
1967年 | 1篇 |
1966年 | 1篇 |
1963年 | 1篇 |
1959年 | 1篇 |
1958年 | 1篇 |
1955年 | 2篇 |
排序方式: 共有69条查询结果,搜索用时 15 毫秒
31.
Evelyn Vingilis Zümrüt Yıldırım-Yenier Larissa Vingilis-Jaremko Christine Wickens Jane Seeley Judy Fleiter 《Traffic injury prevention》2017,18(6):606-615
Objective: Entry of terms reflective of extreme risky driving behaviors into the YouTube website yields millions of videos. The majority of the top 20 highly subscribed automotive YouTube websites are focused on high-performance vehicles, high speed, and often risky driving. Moreover, young men are the heaviest users of online video sharing sites, overall streaming more videos, and watching them longer than any other group. The purpose of this article is to review the literature on YouTube videos and risky driving.Methods: A systematic search was performed using the following specialized database sources—Scopus, PubMed, Web of Science, ERIC, and Google Scholar—for the years 2005–2015 for articles in the English language. Search words included “YouTube AND driving,” “YouTube AND speeding,” “YouTube AND racing.”Results: No published research was found on the content of risky driving videos or on the effects of these videos on viewers. This literature review presents the current state of our published knowledge on the topic, which includes a review of the effects of mass media on risky driving cognitions; attitudes and behavior; similarities and differences between mass and social media; information on the YouTube platform; psychological theories that could support YouTube's potential effects on driving behavior; and 2 examples of risky driving behaviors (“sidewalk skiing” and “ghost riding the whip”) suggestive of varying levels of modeling behavior in subsequent YouTube videos.Conclusions: Every month about 1 billion individuals are reported to view YouTube videos (ebizMBA Guide 2015) and young men are the heaviest users, overall streaming more YouTube videos and watching them longer than women and other age groups (Nielsen 2011). This group is also the most dangerous group in traffic, engaging in more per capita violations and experiencing more per capita injuries and fatalities (e.g., Parker et al. 1995; Reason et al. 1990; Transport Canada 2015; World Health Organization 2015). YouTube also contains many channels depicting risky driving videos. The time has come for the traffic safety community to begin exploring these relationships. 相似文献
32.
Evelyn Pluhar 《Journal of Agricultural and Environmental Ethics》1994,7(1):77-82
Professor Kathryn George's Use and Abuse Revisited does not contain an accurate assessment of my On Vegetarianism, Morality, and Science: A Counter Reply. I show that she has misrepresented my moral and empirical argumentation. 相似文献
33.
Guo Xianwei Su Wanying Li Ning Song Qiuxia Wang Hao Liang Qiwei Li Yaru Lowe Scott Bentley Rachel Zhou Zhen Song Evelyn J. Cheng Ce Zhou Qin Sun Chenyu 《Environmental science and pollution research international》2022,29(45):67483-67503
Environmental Science and Pollution Research - Amounting epidemiological evidence has shown detrimental effects of heavy metals on a wide range of diseases. However, the effect of heavy metal... 相似文献
34.
35.
Evelyn B. Pluhar 《Journal of Agricultural and Environmental Ethics》2000,13(3-4):329-335
David Sztybel has argued that defenders of the moralsignificance of animals have not made an effective case against theirenemy: anthropocentrism. He maintains that they have refuted only``straw' versions of that view. Sztybel opposes anthropocentrism, butis convinced that it is a much more difficult view to defeat than hasbeen thought. He develops the strongest argument possible for``Obligatory Anthropocentrism' (OA), defending it against manyobjections. He also holds that OA does not have unpalatable implicationsfor the treatment of average, below average, and mentally challengedhumans. While I agree that Sztybel has done an admirable job ofdefending anthropocentrism, indeed a better job than theanthropocentrists themselves, I argue that his case for OA is subtly butfatally flawed. I also argue that OA does not dodge two very seriouscriticisms concerning its implications for the treatment of certainhuman beings: the charge of invidious perfectionism and the argumentfrom marginal cases. I conclude that the strongest version ofanthropocentrism is, in fact, not strong enough. 相似文献
36.
37.
Sarah Beganskas Robert J. Ryan Evelyn Walters Manahel Soro Elizabeth Cushman Laura Toran 《Journal of the American Water Resources Association》2021,57(1):134-153
We coupled rainfall–runoff and instream water quality models to evaluate total suspended solids (TSS) in Wissahickon Creek, a mid‐sized urban stream near Philadelphia, Pennsylvania. Using stormwater runoff and instream field data, we calibrated the model at a subdaily scale and focused on storm responses. We demonstrate that treating event mean concentrations as a calibration parameter rather than a fixed input can substantially improve model performance. Urban stormwater TSS concentrations vary widely in time and space and are difficult to represent simply. Suspended and deposited sediment pose independent stressors to stream biota and model results suggest that both currently impair stream health in Wissahickon Creek. Retrofitting existing detention basins to prioritize infiltration reduced instream TSS loads by 20%, suggesting that infiltration mitigates sediment more effectively than detention. Infiltrating stormwater from 30% of the watershed reduced instream TSS loads by 47% and cut the frequency of TSS exceeding 100 mg/L by half. Settled loads and the frequency of high TSS values were reduced by a smaller fraction than suspended loads and duration at high TSS values. A widely distributed network of infiltration‐focused projects is an effective stormwater management strategy to mitigate sediment stress. Coupling rainfall–runoff and water quality models is an important way to integrate watershed‐wide impacts and evaluate how management directly affects urban stream health. 相似文献
38.
Evelyn A. Howell 《Environmental management》1981,5(3):207-212
The process of analyzing vegetation in terms of its suitability for various non-consumptive uses is primitive in comparison with systems for evaluating other resources such as soil and topography. This paper proposes a framework for developing a standardized, quantitative vegetation analysis system based on plant ecology methods. A tentative scheme under study in Wisconsin is presented for discussion purposes. 相似文献
39.
Evelyn Pluhar 《Journal of Agricultural and Environmental Ethics》1988,1(1):59-68
It is commonly believed that we humans are justified in exploiting animals because we are higher beings:persons who have highly complex, autonomous lives as moral agents. However, there are many marginal humans who are not and never will be persons. Those who think it is permissible to exploit animal nonpersons but wrong to do the same to human nonpersons must show that there is a morally relevant difference between the two groups. Speciesists, who believe that membership in a species whose normal adults are persons is sufficient for a right to life, attempt to do just this. As the failure of the best arguments which can be marshalled on their behalf indicates, they are unable to justify their view. I conclude that, although there is a morally relevant difference between human nonpersons and most animal nonpersons, this difference is not an indication of superior moral status. We would do better to abandon speciesism and the assumption thatpersonhood is morally paramount for a view which implies that both human and nonhuman nonpersons are morally considerable and have a right to life. 相似文献
40.
Fu-Lin Evelyn Chu Eric D. Lund Paul R. Littreal Kate E. Ruck Ellen Harvey Jean-René Le Coz Yanic Marty Jeanne Moal Philippe Soudant 《Marine Biology》2008,156(2):155-169
The kinetics and efficiency of sterol production and bioconversion of phytosterols in two heterotrophic protists Oxyrrhis marina and Gyrodinium dominans were examined by feeding them two different algal species (Rhodomonas salina and Dunaliella tertiolecta) differing in sterol profiles. R. salina contains predominantly brassicasterol (?99%) and <2% cholesterol. The major sterols in D. tertiolecta are ergosterol (45–49%), 7-dehydroporiferasterol (29–31%) and fungisterol (21–26%). O. marina fed R. salina metabolized dietary brassicasterol to produce 22-dehydrocholesterol and cholesterol. O. marina fed D. tertiolecta metabolized dietary sterols to produce cholesterol, 22-dehydrocholesterol, brassicasterol and stigmasterol. G. dominans fed either R. salina or D. tertiolecta metabolized dietary sterols to make cholesterol, brassicasterol and a series of unknown sterols. When protists were fed R. salina, which contains cholesterol, the levels of cholesterol were increased to a magnitude of nearly 5- to 30-fold at the phytoplankton-heterotrophic protist interface, equivalent to a production of 172.5 ± 16.2 and 987.7 ± 377.7 ng cholesterol per mg R. salina carbon consumed by O. marina and G. dominans, respectively. When protists were fed D. tertiolecta, which contains no cholesterol, a net production of cholesterol by the protists ranged from 123.2 ± 30.6 to 871.8 ± 130.8 ng per mg algal C consumed. Cholesterol is not only the dominant sterol, but a critical precursor for many physiologically functional biochemicals in higher animal. As intermediates, these heterotrophic protists increase the amount of cholesterol at the phytoplankton–zooplankton interface available to higher trophic levels relative to zooplankton feeding on algae directly. 相似文献