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761.
We seek to bridge the macro concept of corporate social responsibility (CSR) with micro research in organizational justice. A theoretical model is presented whereby employees' perceptions of CSR impact their subsequent emotions, attitudes, and behaviors, mediated by instrumental, relational, and deontic motives/needs, as well as moderated by organizations' social accounts. Copyright © 2006 John Wiley & Sons, Ltd. 相似文献
762.
Mignucci-Giannoni AA Montoya-Ospina RA Jiménez-Marrero NM Rodr&íguez-López MA Williams EH Bonde RK 《Environmental management》2000,25(2):189-198
Trichechus manatus ) in Puerto Rico is mortality due to human activities. We assessed 90 cases of manatee strandings in Puerto Rico based on
historical data and a coordinated carcass salvage effort from 1990 through 1995. We determined patterns of mortality, including
type of event, condition of carcasses, spatial and temporal distribution, gender, size/age class, and the cause of death.
The spatial distribution of stranding events was not uniform, with the north, northeast, and south coasts having the highest
numbers. Six clusters representing the highest incidence included the areas of Fajardo and Ceiba, Bahía de Jobos, Toa Baja,
Guayanilla, Cabo Rojo, and Rio Grande to Luquillo. The number of reported cases has increased at an average rate of 9.6%/yr
since 1990. The seasonality of stranding events showed a bimodal pattern, from February through April and in August and September.
Most identified causes of death were due to human interaction, especially captures and watercraft collisions. Natural causes
usually involved dependent calves. From 1990 through 1995, most deaths were attributed to watercraft collisions. A reduction
in anthropogenic mortality of this endangered species can be accomplished only through education and a proactive management
and conservation plan that includes law enforcement, mortality assessment, scientific research, rescue and rehabilitation,
and inter- and intraagency cooperation. 相似文献
763.
Qunying Luo William Bellotti Martin Williams Enli Wang 《Agriculture, ecosystems & environment》2009,129(1-3):261-267
Evaluation of adaptive management options is very crucial for successfully dealing with negative climate change impacts. Research objectives of this study were (1) to determine the proper N application rate for current practice, (2) to select a range of synthetic wheat (Triticum aestivum L.) cultivars to expand the existing wheat cultivar pool for adaptation purpose, (3) to quantify the potential impacts of climate change on wheat grain yield and (4) to evaluate the effectiveness of three common management options such as early sowing, changing N application rate and use of different wheat cultivars derived in (2) and given in the APSIM-Wheat model package in dealing with the projected negative impacts for Keith, South Australia. The APSIM-Wheat model was used to achieve these objectives. It was found that 75 kg ha?1 N application at sowing for current situation is appropriate for the study location. This provided a non-limiting N supply condition for climate change impact and adaptation evaluation. Negative impacts of climate change on wheat grain yield were projected under both high (?15%) and low (?10%) plant available water capacity conditions. Neither changes in N application level nor in wheat cultivar alone nor their synergistic effects could offset the negative climate change impact. It was found that early sowing is an effective adaptation strategy when initial soil water was reset at 25 mm at sowing but this may be hard to realise especially since a drier environment is projected. 相似文献
764.
Robert?K.?DixonEmail author Richard?M.?Scheer Gareth?T.?Williams 《Mitigation and Adaptation Strategies for Global Change》2011,16(1):83-102
Addressing energy, economic and environment security is a pressing challenge for nations worldwide. Global energy demand is
projected to increase by 45% during the next 20 years, with the fastest growth in developing and transition countries. Over
the past two decades, the Global Environment Facility (GEF) has invested in a portfolio of sustainable energy projects with
an emphasis on energy efficiency, renewable energy, and urban transport. These projects address many different national priorities
including infrastructure, technologies, policies, best practices, institutions, and capacity building. Since 1991, more than
US2,735 billion has been invested in energy sector projects with an additional US2,735 billion has been invested in energy sector projects with an additional US17.118 billion in co-financing from governments
and the private sector. US1,186 billion, together with US1,186 billion, together with US7,092 billion in co-finance, has been invested in energy efficiency
projects that deploy new technologies, develop institutional and human capacity, disseminate best practices, and build public
awareness and understanding. GEF renewable energy investments of US1,298 billion, with co-financing of US1,298 billion, with co-financing of US7,555 billion,
have advanced demonstration and deployment of solar thermal heating, solar thermal power, photovoltaics, wind power, geothermal
energy, small hydropower, biomass, and combined technologies and best practices across 5 continents. The GEF has invested
US251 million (with US251 million (with US2,471 billion in co-finance) in urban transport projects that address transport strategies, infrastructure,
and mobility technology solutions. These energy efficiency, renewable energy and urban transport projects contributed to the
direct reduction of about 1.7 billion tons of greenhouse gas emissions. Other tangible environmental benefits also flowed
from these GEF investments. Case studies of representative projects are presented to illustrate lessons learned from the energy
efficiency, renewable, energy, and urban transport investments. Experiences from GEF investments can inform development and
implementation of future sustainable energy investments. 相似文献
765.
The successful implementation of a regulation in the modern complicated world is a major issue for states. A newly introduced regulation may cause conflicts of interest among various parties that are affected. A common conflict is that from one hand, the public demands the introduction of regulations that will increase safety, environmental and security standards while on the other hand industries are concerned about potential costs caused by new regulations. In this paper, the shipping industry, which is a typical example of an international industry, is chosen to carry out a cost and benefit analysis generated from the implementation of a newly introduced regulation. Consequently, a methodology is proposed capable of evaluating the implementation performance of a regulation in the shipping industry with respect to the costs and benefits that can be generated. For a simple and effective computation, a System of Hierarchical Scorecards (SHS) is developed to assist regulators in evaluating any proposed and/or existing regulations. 相似文献
766.
767.
Michael X. Cammisa Allan F. Williams Susan A. Ferguson 《Traffic injury prevention》2013,14(2):103-110
A telephone survey was conducted in four countries in November 1998 to compare drivers in the United States with those in Australia, Canada, and the United Kingdom regarding their attitudes toward seat belts and belt use laws. More than 90 percent of the 2251 respondents said they thought seat belts are effective, but self-reported belt use was significantly lower in the United States than in the other countries. Respondents in Australia and the United Kingdom had similar views about what they thought were important reasons for using seat belts and had the highest self-reported use. Reasons given for using belts by Canadian and US respondents were quite similar to one another, yet US respondents had significantly lower self-reported use rates, a difference thought to be due to vigorous enforcement of the law in Canada. US drivers were less likely than Australian and UK drivers to say they used belts out of habit, to avoid a ticket, or because it is required by law and more likely to say they used belts for situational reasons. US drivers were least likely to be in favor of belt use laws. Canadian drivers reported the most experience being checked by police for belt use and were most likely to think that nonusers would be caught. US drivers in primary enforcement jurisdictions were more likely than those in secondary jurisdictions to think that drivers not using belts would be caught and more likely to say they always used belts. Results of this survey indicate that seat belt use in the United States could be increased by adoption of primary enforcement laws and highly visible enforcement programs of the type used in Canada, and that seat belt use could be increased in all countries by increasing the penalties for nonuse. 相似文献
768.
Alteration of DNA methylation is a major epigenetic mechanism associated with the effects of nongenotoxic carcinogens. We evaluated the effects of two environmental pollutants, hexabromocyclododecane (HBCD), 17-beta oestradiol (E(2)) as well as 5-aza 2' deoxycytidine (5AdC) on global DNA methylation levels (5-methyl 2' deoxycytidine) in the liver and gonads of the three-spine stickleback (Gasterosteus aculeatus). HBCD at 30 and 300 ng/L of water did not produce statistically significant differences in global genomic methylation in liver of female stickleback. On the other hand, the methylation inhibitor, 5-aza-2'-deoxycytidine, significantly lowered hepatic global methylation levels in these fish by 14% (P<0.05). The naturally occurring oestrogen, 17-beta oestradiol (E(2)) at 100 ng/L also decreased global DNA methylation levels in female liver but this effect was not statistically significant. In contrast, both E(2) and 5AdC caused statistically significant (P<0.001 and P<0.01 respectively) global genomic hypermethylation in the gonads of male sticklebacks although the increase seen in the female gonads was not statistically significant. The male gonad effect though unexplained may potentially be an indirect response to hypomethylation in other tissues (such as the liver) and may have important implications regarding oestrogenic effects in fish. The contrasting effects of HBCD and E(2) on global DNA methylation in stickleback should contribute to the integrated risk assessment of these environmental chemicals. 相似文献
769.
Simpson AJ Lam B Diamond ML Donaldson DJ Lefebvre BA Moser AQ Williams AJ Larin NI Kvasha MP 《Chemosphere》2006,63(1):142-152
Recently it has been shown that urban surfaces are covered with a thin film which mediates the fate, distribution and accumulation of semi-volatile organic compounds in the environment. In this study we apply a combination of solution, semi-solids, and solid state nuclear magnetic resonance (NMR) methods to provide a general overview of the organic constituents. In surface film collected from 30 m2 of outside windows over an area of 12 km2 in downtown Toronto, we roughly estimate that the organic carbon is approximately 35% carbohydrate, approximately 35% aliphatics, approximately 20% aromatics, and approximately 10% carbonyl groups. Various aliphatic groups can be identified including a number of acids, alcohols, alkanes, and alkenes. Also, numerous intact aliphatic esters are apparent that have not been observed before, as well as carbohydrates. The aromatic species include a small portion that appears to be derived from a polymer of styrene, in addition a larger fraction is consistent with polyhydroxylated PAH derived material, although this assignment is tentative and based solely on 1-D NMR data only. In addition, signals from polybutadiene are present and while accurate quantification is not possible, it appears that this polymer may be up to a few percents by weight of the total organic material. 相似文献
770.
The plant family Orobanchaceae includes many parasitic weeds that are also impressive invaders and aggressive crop pests with several specialized features (e.g. microscopic seeds, parasitic habits). Although they have provoked several large-scale eradication and control efforts, no global evaluation of their invasive potential is as yet available. We use tools from ecological niche modeling in combination with occurrence records from herbarium specimens to evaluate the global invasive potential of each of 10 species in this assemblage, representing several of the worst global invaders. The invasive potential of these species is considerable, with all tropical and subtropical countries, and most temperate countries, vulnerable to invasions by one or more of them. 相似文献