Ecology eJournal最新文献_第2页

Metal – Metal Interactions in Biological System: A Competitive Approach. Review 生物系统中的金属-金属相互作用:一种竞争性方法。审查

Ecology eJournal Pub Date : 2019-12-02 DOI: 10.2139/ssrn.3610342

Lulzim Zeneli

{"title":"Metal – Metal Interactions in Biological System: A Competitive Approach. Review","authors":"Lulzim Zeneli","doi":"10.2139/ssrn.3610342","DOIUrl":"https://doi.org/10.2139/ssrn.3610342","url":null,"abstract":"The increased availability of metals in biological environments, due to human intervention in the last century, raised concerns on the effects that metals might have on living organisms. Consequently, the toxicology of metals and bioinorganic chemistry has emerged as very active in this field of metals research. Different chemical forms can influence metal toxicokinetics and toxicodynamics and should be considered to improve human health risk assessment. Factors that influence metal speciation include: carrier-mediated processes for specific metal species; valence state; particle size; the nature of metal binding ligands; whether the metal is an organic versus inorganic species and biotransformation of metal species. The recent studies of the co-ordination chemistry of metal ions in biological systems (mostly X-ray crystallographic data) show the potential grouping metal ions according to their binding preferences (i.e. whether they seek out 0-, N- or S-containing ligands), on the other hand, the scientific results have shown us for the possibility of metal-metal interaction in biological systems despite their level of concentration. This review provides a compilation of research done on metal - metal interaction in biological system.","PeriodicalId":11510,"journal":{"name":"Ecology eJournal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-12-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85719347","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 1

Women Role in Environmental Conservation and Development in Nigeria 尼日利亚妇女在环境保护和发展中的作用

Ecology eJournal Pub Date : 2019-07-23 DOI: 10.2139/ssrn.3425832

Morufu Olalekan Raimi, R. M. Suleiman, O. Odipe, Salami John Tolulope, Oshatunberu Modupe, Awogbami Stephen Olalekan, Makanjuola Bosede Christianah

{"title":"Women Role in Environmental Conservation and Development in Nigeria","authors":"Morufu Olalekan Raimi, R. M. Suleiman, O. Odipe, Salami John Tolulope, Oshatunberu Modupe, Awogbami Stephen Olalekan, Makanjuola Bosede Christianah","doi":"10.2139/ssrn.3425832","DOIUrl":"https://doi.org/10.2139/ssrn.3425832","url":null,"abstract":"Recent studies have shown that one in four women worldwide or about 620 million women rate their lives positively enough to be considered ‘thriving’ and have shown that women in Nigeria play a crucial role due to their active involvement in conservation activities and management of the environment. However, they are viewed as insignificant partners and not accorded due attention and many women-related economic and social activities depends on environmental resources. Yet, women are denied access to effective and sustainable use of forest resources, and they have limited or no control over land, capital and labour. Women therefore suffer numerous limitations accordingly. As a result of widespread mistreatment and overt discrimination in all dimensions of women lives, women lack significant autonomy. The central preoccupation of this review is to explore key role of women in environmental conservation and discuss the current challenges and opportunities for the future. Equipped with the right tools, the massive and growing generation of women in Africa, particularly, Nigeria has the potential to drive development, achieve global goals and transform the continent’s future along with their own.\" It is therefore recommended that for sustainable development to take its roots, access and ownership of natural resources should be enhanced for all gender particularly women, people living with disabilities, marginalized and minority groups. Unless women efforts are recognised, we might likely be pushing towards planetary limits and without vibrant women movement, the Sustainable Development Goals are dead in the water thereby leading to the brink of a global disaster.","PeriodicalId":11510,"journal":{"name":"Ecology eJournal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-07-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78536880","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 37

Arapaima Fish Scale: One of the Toughest Flexible Biological Materials 巨舌鱼鱼鳞:最坚硬的柔性生物材料之一

Ecology eJournal Pub Date : 2019-06-10 DOI: 10.2139/ssrn.3401845

Wen Yang, Haocheng Quan, M. Meyers, R. Ritchie

引用次数: 29

Neonicotinoids in U.S. Maize: Insecticide Substitution Effects and Environmental Risk 美国玉米中的新烟碱:杀虫剂替代效应和环境风险

Ecology eJournal Pub Date : 2019-05-30 DOI: 10.2139/ssrn.3396781

Edward D. Perry, G. Moschini

{"title":"Neonicotinoids in U.S. Maize: Insecticide Substitution Effects and Environmental Risk","authors":"Edward D. Perry, G. Moschini","doi":"10.2139/ssrn.3396781","DOIUrl":"https://doi.org/10.2139/ssrn.3396781","url":null,"abstract":"This study exploits a novel dataset containing more than 89,000 farm-level surveys over a 17-year period to investigate how neonicotinoid seed treatments in maize, now ubiquitous, have affected the use of other insecticides. Neonicotinoid insecticides are the most used class of insecticides in the world, but they are controversial because of their high toxicity to honeybees. In the United States, maize production accounts for the majority of neonicotinoid use, mostly as seed treatments. We find that neonicotinoids substituted for other major insecticides: plots planted with neonicotinoid-treated seeds were 52% and 47% less likely to be treated with a pyrethroid and organophosphate insecticide, respectively. Although honeybees have been put at greater risk by neonicotinoids, the changed pattern of pest control instruments has reduced toxicity risk for mammals, birds, and fish. We also find that adoption of genetically engineered insect-resistant maize varieties significantly reduced the use of organophosphate and pyrethroid insecticides, thereby reducing toxicity exposure to all examined taxa. Policies aimed at restricting neonicotinoid use may need to account for undesirable unintended consequences.","PeriodicalId":11510,"journal":{"name":"Ecology eJournal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2019-05-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88269542","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 8

Power Generation Using Speed Bumps 利用减速带发电

Ecology eJournal Pub Date : 2019-05-13 DOI: 10.2139/ssrn.3387562

A. Tripathi, Anurag Mishra, Amod Kumar, Abhinav Kumar Yadav, Vipul Saxena

引用次数: 0

Study of Electrohydrolytic Pretreatment on Lignocellulose Waste Material for Improved Production of Biomethane 木质纤维素废弃物电水解预处理提高生物甲烷产量的研究

Ecology eJournal Pub Date : 2018-12-12 DOI: 10.2139/ssrn.3299820

Rohit Sharma, Shubham Bhatt, Saurabh Nishad, Utkarsh Singh

{"title":"Study of Electrohydrolytic Pretreatment on Lignocellulose Waste Material for Improved Production of Biomethane","authors":"Rohit Sharma, Shubham Bhatt, Saurabh Nishad, Utkarsh Singh","doi":"10.2139/ssrn.3299820","DOIUrl":"https://doi.org/10.2139/ssrn.3299820","url":null,"abstract":"An anaerobic digestion is well developed technology widely applied for bioenergy production from the sewage sludge, animal manure, agricultural residue, industrial sludge etc. This substrate has high levels of biodegradable organics make it an ideal feedstock for anaerobic digestion. Due to the continuous production in the industrial level, there is a huge accumulation of waste especially in sugar mills; the huge quantity of bagasse as residue was produced. Due to the natural intractable structure of lignocellulose biomass towards microbial or enzymatic deconstruction, pre-treatment is necessary to make the celluloses open to enzymatic hydrolysis for fermentation and anaerobic digestions. In recent years, there has been improved concern in pretreatment of lignocellulose biomass and waste for anaerobic digestion. The several structural and compositional properties of lignocellulosic content render it resistant to biodegradation. Even though there has been an extensive research on the effect of pretreatment, the correlation between the degradability of lignocellulose material, the structural and compositional properties remains unclear and contradictory.","PeriodicalId":11510,"journal":{"name":"Ecology eJournal","volume":null,"pages":null},"PeriodicalIF":0.0,"publicationDate":"2018-12-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87178391","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}

引用次数: 0

Does the Species Protection Index for 198 Countries Converge Over Time? 198个国家的物种保护指数是否随时间趋同?

Ecology eJournal Pub Date : 2018-09-20 DOI: 10.2139/ssrn.3252341

Yu Sang Chang, Hann Earl Kim, Myeong-cheol Choi

引用次数: 0

Environmental Health: Chemicals in Breast Milk 环境卫生:母乳中的化学物质

Ecology eJournal Pub Date : 2008-10-21 DOI: 10.2139/ssrn.1278397

Andrea L. Larson

引用次数: 1