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排序方式: 共有465条查询结果,搜索用时 31 毫秒
1.
Kalan Mohammad Ebrahimi Ghobadi Hassan Taleb Ziyad Ben Adham Davoud Cobb Caroline O Ward Kenneth D Behaleh Raed Fazlzadeh Mehdi 《Environmental science and pollution research international》2021,28(30):40346-40354
Environmental Science and Pollution Research - There is mixed evidence surrounding the relationship between tobacco use and COVID-19 infection/progression. The current study investigates beliefs... 相似文献
2.
Caroline C. MBA 《Environmental management》1994,18(2):257-261
Four microbial isolates, OP2, OP3, OP6, and OP7, of earthworm casts ofPontoscolex corethrurus were found to be acid tolerant actinomycetes and efficient rock phosphate (RP) solubilizers that could grow fast on NH4Cl-enriched or N-free carboxymethyl cellulose or glucose as sole carbon source.
CMC (carboxymethyl cellulose) induced production of extracellular cellulase enzyme and the production of reducing sugar in
all the isolates. RP solubilizing power was observed to be inversely related to glucose consumption. The most efficient RP
solubilizer was found to consume the least glucose.
Growth was faster on cellulose than on glucose media. N-free CMC induced greater glucose production than NH4Cl-enriched CMC medium. Both CMC and glucose media were acidified by all the isolates, however, RP solubilizing power decreased
with acidification. Solubilization power was greatest with isolate OP7, which also produced the greatest amount of reducing
sugar per gram CMC. Both RP solubilizing power and the cellulolytic efficiency varied among isolates. A minimum of 631 μg
P/0.1 g RP and a maximum of 951.4 μg P/0.1 g RP was recorded. 相似文献
3.
Evelyne Brisebois Marc Veillette Vanessa Dion-Dupont Jacques Lavoie Jacques Corbeil Alexander Culley Caroline Duchaine 《环境科学学报(英文版)》2018,30(5):45-53
Wastewater treatment center(WTC) workers may be vulnerable to diseases caused by viruses, such as the common cold, influenza and gastro-intestinal infections. Although there is a substantial body of literature characterizing the microbial community found in wastewater, only a few studies have characterized the viral component of WTC aerosols,despite the fact that most diseases affecting WTC workers are of viral origin and that some of these viruses are transmitted through the air. In this study, we evaluated in four WTCs the presence of 11 viral pathogens of particular concern in this milieu and used a metagenomic approach to characterize the total viral community in the air of one of those WTCs. The presence of viruses in aerosols in different locations of individual WTCs was evaluated and the results obtained with four commonly used air samplers were compared.We detected four of the eleven viruses tested, including human adenovirus(h Ad V),rotavirus, hepatitis A virus(HAV) and Herpes Simplex virus type 1(HSV1). The results of the metagenomic assay uncovered very few viral RNA sequences in WTC aerosols, however sequences from human DNA viruses were in much greater relative abundance. 相似文献
4.
5.
Reasons for non-participation in a kerbside recycling scheme 总被引:1,自引:0,他引:1
In this article potential barriers to recycling are explored within a UK community of approximately 8000 households that are piloting a kerbside paper recycling scheme. All 1690 non-users of the scheme were surveyed for their decisions not to participate. A 43% response rate was generated from the survey and the reasons given by householders were coded into 12 categories. The main reasons for non-participation included insufficient paper and lack of space in which to locate the recycling bin. 62% of the non-participants reported that they were recycling paper using other facilities such as local bring schemes and charity collections. Strategies to increase participation in the kerbside scheme are suggested. 相似文献
6.
Elvis G. Ngwenya Maud Walsh Caroline A. Metosh‐Dickey Ralph J. Portier 《补救:环境净化治理成本、技术与工艺杂志》2006,16(2):79-90
Biological and physicochemical approaches were utilized in a treatment train for acid mine dis charge (AMD) waters. Anaerobic bioreactors, chemical precipitation reactors, and biopolymer chelation reactors, operated in static, semicontinuous, and continuous flow modes, removed significant quantities of metals and sulfates associated with AMD water. Static tests indicated accept able copper removal via precipitation by generation of hydrogen sulfide in anaerobic reactors. However, low pH affected the biopolymer coating in the chelation reactor, resulting in loss of bed surface. Corrections of AMD to pH > 7 resulted in some metal precipitationprior to biopolymer treatment. A series of static semicontinuous tests at pH 5.0 provided improved metal and sulfate removal. Copper (Cu+) was reduced to trace concentrations, while manganese (Mn+), although reduced, proved to be the most recalcitrant of the metals. © 2006 Wiley Periodicals, Inc. 相似文献
7.
Jayasinghe Randika Liyanage Nilmini Baillie Caroline 《Journal of Material Cycles and Waste Management》2021,23(2):557-565
Journal of Material Cycles and Waste Management - The key aim of a transition to a Green Economy is to enable economic growth and investment while increasing environmental quality and social... 相似文献
8.
Raiane Costa Souza Roberto Bagattini Portella Paula Valéria Nunes Brito Almeida Caroline Oliveira Pinto Priscila Gubert 《Journal of environmental science and health. Part. B》2020,55(6):530-538
AbstractOrganochlorine pesticides (OCPs) are widely used around the world as insecticides, herbicides, fungicides, nematicides, and rodenticides. Despite banned in Brazil, the usage remains occurring in many countries. The persistence and extreme mobility of OCPs contribute to the contamination of the environment and the human body. The OCPs bioaccumulation in adipose tissue triggers the excretion into human milk during breastfeeding. Hence, the present study determined eighteen OCPs residues in the breast milk of mothers from the Western Region of Bahia State, Brazil. Nine different residue species were found, including beta-Hexachlorocyclohexane (9.24?±?0.00?ng g?1 fat), delta- Hexachlorocyclohexane (22.15?±?10.48?ng g?1 fat), Heptachlor (58.08?±?74.13?ng g?1 fat), Aldrin (142.65?±?50.65?ng g?1 fat), Dieldrin (774.62?±?472.68?ng g?1 fat), Endosulfan I (408.44?±?245.51?ng g?1 fat), Dichloro-diphenyl-dichloro-ethylene (29.17?±?22.42?ng g?1 fat), Dichloro-diphenyl-trichloro-ethane (28.87?±?0.00?ng g?1 fat) and Methoxychlor (1699.67?±?797.43?ng g?1 fat). The Methoxychlor presence in all samples may reveal a recent exposure, while Dieldrin and Endosulfan I analyses can point to distant past exposure. 相似文献
9.
Igor Linkov Matthew D. Wood Renae Ditmer Anthony Cox Robert Ross 《The Environmentalist》2013,33(3):335-340
Individuals make decisions every day in group contexts which vary in size, structure, and purpose. The US Department of Defense (DoD) is a large organization composed of many groups, and like many organizations, it has a vested interest in improving the performance of its affiliated groups, especially as it concerns risk-informed decision-making. This article discusses current foibles and considerations for decision-making in DoD groups as identified through a workshop with experts in risk-informed decision-making, cognitive science, and military operations. Experts noted that terms associated with risk-informed decision-making were often misconstrued, that formal decision-making frameworks are underutilized, and that many considerations should be taken into account when attempting to improve decision-making performance. 相似文献
10.
PROBLEM: Safety-belt use reduces motor vehicle crash-related morbidity and mortality, yet an estimated 18% of drivers do not consistently buckle up (NHTSA, 2005). In 1985, Geller and colleagues developed an interpersonal Flash-for-Life prompt that increased belt use among 22% of 1,087 unbuckled drivers (Geller, Bruff, & Nimmer, 1985). METHOD: The Flash-for-Life intervention was re-introduced at a large university with high safety-belt use (i.e., 80%). College students stood at parking-lot entrance/exits and "flashed" signs with the message, "Please Buckle Up, I Care" to unbuckled drivers. RESULTS: Of 427 unbuckled drivers observed, 30% of these complied with the prompt. Male drivers were significantly more likely to comply with prompts delivered by females. DISCUSSION: Compliance was higher than in the 1985 study, indicating a high baseline rate of safety-belt use does not negate potential beneficial influence of a prompting intervention. This intervention is particularly effective with college-aged males, a sub-group of the driving population least likely to buckle-up. IMPACT ON INDUSTRY: A simple behavioral prompt could be used at most industrial complexes to increase safety-belt use among vehicle occupants who are not buckled-up. 相似文献