全文获取类型
收费全文 | 202篇 |
免费 | 8篇 |
国内免费 | 1篇 |
专业分类
安全科学 | 7篇 |
废物处理 | 21篇 |
环保管理 | 24篇 |
综合类 | 32篇 |
基础理论 | 24篇 |
环境理论 | 1篇 |
污染及防治 | 65篇 |
评价与监测 | 21篇 |
社会与环境 | 15篇 |
灾害及防治 | 1篇 |
出版年
2023年 | 8篇 |
2022年 | 15篇 |
2021年 | 13篇 |
2020年 | 7篇 |
2019年 | 11篇 |
2018年 | 17篇 |
2017年 | 10篇 |
2016年 | 16篇 |
2015年 | 8篇 |
2014年 | 8篇 |
2013年 | 10篇 |
2012年 | 17篇 |
2011年 | 16篇 |
2010年 | 5篇 |
2009年 | 9篇 |
2008年 | 8篇 |
2007年 | 5篇 |
2006年 | 6篇 |
2005年 | 8篇 |
2004年 | 2篇 |
2003年 | 2篇 |
2002年 | 3篇 |
2001年 | 3篇 |
2000年 | 1篇 |
1999年 | 1篇 |
1995年 | 1篇 |
1971年 | 1篇 |
排序方式: 共有211条查询结果,搜索用时 15 毫秒
161.
Drawing on the cognitive persistence perspective of creativity and conservation of resources theory, we investigated how 2 social contexts (perceived relationship conflict and coworker support for creativity) influence the relationship between anger and creative process engagement (CPE) in organizations. We tested our hypotheses using 422 daily surveys from 98 participants, collected over 5 consecutive workdays. The results show that anger perceived relationship conflict and coworker support for creativity interact to influence CPE. Specifically, when relationship conflict is high, the anger–CPE relationship is positive for employees who receive high coworker support for creativity, but negative for those who receive low coworker support for creativity. In contrast, when relationship conflict is low, the anger–CPE relationship is positive but does not differ at high versus low coworker support for creativity. 相似文献
162.
Vieira CD de Carvalho MA Cussiol NA Alvarez-Leite ME dos Santos SG Gomes RM Silva MX Nicoli JR Farias Lde M 《Waste management (New York, N.Y.)》2011,31(6):1327-1332
In Brazil, few studies on microbial content of dental solid waste and its antibiotic susceptibility are available. An effort has been made through this study to evaluate the hazardous status of dental solid waste, keeping in mind its possible role in cross-infection chain. Six samples of solid waste were collected at different times and seasons from three dental health services. The microbial content was evaluated in different culture media and atmospheric conditions, and the isolates were submitted to antibiotic susceptibility testing. A total of 766 bacterial strains were isolated and identified during the study period. Gram-positive cocci were the most frequent morphotype isolated (48.0%), followed by Gram-negative rods (46.2%), Gram-positive rods (5.0%), Gram-negative-cocci (0.4%), and Gram-positive coccobacillus (0.1%). Only two anaerobic bacteria were isolated (0.3%). The most frequently isolated species was Staphylococcus epidermidis (29.9%), followed by Stenotrophomonas maltophilia (8.2%), and Enterococcus faecalis (6.7%). High resistance rate to ampicillin was observed among Gram-negative rods (59.4%) and Gram-positive cocci (44.4%). For Gram-negative rods, high resistance was also noted to aztreonam (47.7%), cefotaxime (47.4%), ceftriaxone and cefazolin (43.7%), and ticarcillin-clavulanic acid (38.2%). Against Gram-positive cocci penicillin exhibit a higher resistance rate (45.0%), followed by ampicillin, erythromycin (27.2%), and tetracycline (22.0%). The present study demonstrated that several pathogenic bacteria are present in dental solid waste and can survive after 48 h from the waste generation time and harbor resistance profiles against several clinical recommended antibiotics. 相似文献
163.
Ferreira MI Domingos M Gomes Hde A Saldiva PH de Assunção JV 《Environmental pollution (Barking, Essex : 1987)》2007,146(1):219-224
We report seasonal variation in CH(4) and N(2)O emission rate from solid storage of bovine manure in Delhi as well as emission factors and emission inventory from manure management systems in India. Emission flux observed in the year 2002-2003 was 4.29+/-1, 4.84+/-2.44 and 12.92+/-4.25 mg CH(4)kg(-1)dung day(-1), as well as 31.29+/-4.93, 72.11+/-16.22 and 6.39+/-1.76 microgN(2)O kg(-1)dung day(-1) in winter, summer and rainy seasons, respectively. CH(4) emission factors varied from 0.8 to 3.3 kg hd(-1)year(-1) for bovines and were lower than IPCC-1996 default values. N(2)O emission factors varied from 3 to 11.7 mg hd(-1)year(-1) from solid storage of manure. Inventory estimates were found to about 698+/-27 Gg CH(4) from all manure management systems and 2.3+/-0.46 tons of N(2)O from solid storage of manure for the year 2000. 相似文献
164.
Bonetti Beatriz Waldow Etienne C. Trapp Giovanna Hammercshmitt Marta E. Ferrarini Suzana F. Pires Marçal J. R. Estevam Sabrina T. Aquino Thiago F. D. 《Environmental science and pollution research international》2021,28(3):2638-2654
Environmental Science and Pollution Research - The use of different types of zeolites (X, Na-P1, and 4A) synthesized by different methods and scales were tested in this work to adsorb nutrients... 相似文献
165.
Celso de Sousa Figueiredo Gomes 《Environmental geochemistry and health》2018,40(5):1739-1765
The use of clay by humans for medicinal and wellness purposes is most probably as old as mankind. Within minerals, due to its ubiquitous occurrence in nature and easy availability, clay was the first to be used and is still used worldwide. Healing clays have been traditionally used by man for therapeutic, nutritional and skin care purposes, but they could impart some important health and skin care risks. For instance, clay particles could adsorb and make available for elimination or excretion any potential toxic elements or toxins being ingested or produced, but they could adsorb and make available for incorporation, through ingestion or through dermal absorption, toxic elements, e.g. heavy metals. Edible clays, a particular case of healing clays, have been traditionally used by man for nutritional and therapeutic purposes. Geophagy, the deliberate soil eating, earth eating, clay eating and pica (medical condition or eating disorder shown by individuals addicted to eat earth substances), has been observed in all parts of the world since antiquity, reflecting cultural practice, religious belief and physiological needs, be they nutritional (dietary supplementation) or as a remedy for disease. This paper pretends to review historical data, basic concepts and functions, as well as benefits and risks of the use of healing clays, in general, for therapeutic and cosmetic purposes, and of edible clays, in particular, for therapeutic purposes. 相似文献
166.
Cesar Vinicus Toniciolli Rigueto Rafaela de Oliveira Karolynne Sousa Gomes Ingridy Alessandretti Mateus Torres Nazari Marieli Rosseto Daniela Dal Castel Krein Raquel Aparecida Loss Aline Dettmer 《环境质量管理》2023,33(1):203-221
The fishing industry is responsible for generating large amounts of organic waste rich in compounds of commercial interest. This review aimed to present the state of the art about the possibilities of using solid waste to obtain value-added products. Skins, fins, and scales have been used to obtain gelatin and collagen, a promising compound for use as an additive in yogurts and creams, as well as for the synthesis of biodegradable packaging that, if applicable, can reduce the environmental impact caused by petroleum packaging. Other parts, such as the head and the viscera, contain polyunsaturated fatty acids and other fat-soluble vitamins that have been studied for the production of omega-3 capsules for the pharmaceutical industry, but when the extracted oil does not fit the feeding parameters, it can be applied for the production of biodiesel. Furthermore, fishes are a promising source of astaxanthin, a carotenoid with high antioxidant properties. The use of combined techniques such as chemical and enzymatic methods can increase the extraction yield and favor the obtaining of more purified compounds, in addition to promoting the reduction of chemicals that are aggressive to the environment. In general, conscious production in the fishing industry through the valorization of waste generated for use as inputs for other value chains encompasses aspects of the circular economy, which can positively impact several Sustainable Development Goals. 相似文献
167.
Moreira Cristiana Gomes Cidália Vasconcelos Vitor Antunes Agostinho 《Environmental science and pollution research international》2023,30(1):219-227
Environmental Science and Pollution Research - Cyanobacteria, ancient prokaryotes, interfere with ecosystem water quality through the production of cyanotoxins and bloom formation. Therefore, for... 相似文献
168.
da Silva Joelma P. do S. Costa Maria Campina Fabia F. Bezerra Camila F. de Freitas Thiago S. Sousa Amanda K. Sobral Souza Celestina E. de Matos Yedda M. L. S. Pereira-Junior Francisco N. Menezes Irwim R. A. Coutinho Henrique D. M. Rocha Janaína E. 《Environmental geochemistry and health》2021,43(4):1609-1616
Environmental Geochemistry and Health - Mercury is widely found in nature, however, in low concentrations, but anthropological activities have increased its concentration considerably. This causes... 相似文献
169.
Ikebe Otomo Juliana Araujo de Jesus Tatiane Gomes Coelho Lúcia Helena Rebelo Monteiro Lucilena Hunter Colin Helwig Karin Roberts Joanne Pahl Ole 《Environmental science and pollution research international》2021,28(32):43747-43762
Environmental Science and Pollution Research - The growth of two species of macrophytes (Lemna minor and Salvinia auriculata) under the effect of a mixture of amoxicillin, caffeine, carbamazepine,... 相似文献
170.