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941.
The purpose of this study is to examine the relationship between the specific business segments of firms in the environmental management industry and the financial performance of those organizations. Based on a sample of firms in 1992 and 1994, the results show that cleaning ‘end of pipe’ environmental technologies are more profitable than cleaner ‘process based’ environmental technologies. In addition, firms in the waste management segment of the environmental management industry are the most profitable, while recycling firms are the least profitable. © 1998 John Wiley & Sons, Ltd and ERP Environment. 相似文献
942.
Sarah D. Stanwick Peter A. Stanwick 《Corporate Social Responsibility and Environmental Management》1998,5(1):22-37
An empirical study was conducted to examine the nature of environmental disclosures of 29 firms in the chemical industry. From the examination of over 3700 disclosures, the results show that the type of disclosures presented across firms and across industries varied based on a number of factors. The disclosures were analyzed based on medium, focus, channel of communication, time span, subject and environmental regulation. The results showed that the majority of the disclosures were found in the press, presented current environmental issues, were non-technical in nature, were qualitative in nature and dealt with pollution and environmental expenditure issues. © 1998 John Wiley & Sons, Ltd and ERP Environment. 相似文献
943.
Increased public access to environmental information is a subject of growing significance, which impacts upon a wide variety of organisations. Environmental reporting and disclosure of environmental information is a growth area among many commercial concerns, whose motivation, and approach to ‘going public’ often vary considerably. This paper examines the implications of these trends and their effect upon corporate liability. Copyright © 1994 John Wiley & Sons, Ltd. and ERP Environment 相似文献
944.
Peter F. Sale 《Conservation biology》2007,21(1):281-282
945.
Mikael Hult María Jos Martínez Canet Peter N. Johnston Kazuhisa Komura 《Journal of environmental radioactivity》2002,60(3)
During the JCO-accident in Tokai-mura in 1999, the surrounding village was irradiated by an uncontrolled neutron flux. At some locations in that village, the thermal neutron flux was determined retrospectively by measurement of the very low activity of 51Cr and 60Co in stainless-steel spoons using γ-ray spectrometry in underground laboratories. Activities determined in the HADES underground facility are presented here, together with calibrations performed using a well-defined thermal neutron flux to directly estimate the fluence of thermal neutrons independent of most assumptions. The results show measurable 51Cr in three samples and 60Co in four samples taken from locations at distances of up to 430 m from the accident location despite the elapse of 4 half-lives of 51Cr before measurement. Effects of air transport of the samples were considered and shown to be negligible. 相似文献
946.
Min Z. Carter;Michael S. Cole;Jeremy B. Bernerth;Peter D. Harms;Aric Wilhau;Joshua C. Palmer; 《组织行为杂志》2024,45(6):837-854
There is an inherent interest in the implications of psychopathic employees, although attention, to date, is more pronounced in public media than in the scientific literature. In this study, we use behavioral threshold theory to propose a curvilinear relationship between employees' psychopathy and their counterproductive work behavior (CWB). Our predictions were corroborated across three studies involving two countries while controlling for narcissism and Machiavellianism. Specifically, we find that the destructive nature of psychopathy is amplified with accelerated levels of CWB among individuals high on psychopathy. These results address mixed and unexpected findings in the literature, thereby offering a more nuanced understanding of the psychopathy–CWB relationship. Drawing additionally on trait activation theory, we examine the moderating effects of social context as manifested in relationship conflict with coworkers and abusive supervision. Results support the moderated hypotheses such that the psychopathy–CWB curvilinear relationship is stronger in negative social environments for both self-rated and other-rated CWB assessments. As the relationships between individuals' dark traits and behavioral outcomes are likely more complex than simple linear relations, we advocate future research to combine complementary theoretical lenses for improved theoretical precision. 相似文献
947.
Private landowners in South Africa conserve roughly 40% of white rhinos globally. Given concerns that escalating poaching has caused private-rhino owners to disinvest, we used a national survey to assess 171 private-rhino owners’ responses to the crisis. Twenty-eight percent of rhino owners are disinvesting in rhino, 57% are pursuing business-as-usual (largely ecotourism), and 15% are investing in more rhinos. It is currently unclear whether this diversity in private-rhino owners’ responses to the crisis is increasing the resilience of the rhino population to poaching. Some rhino investors show signs of financial stress. Most owners support rhino-horn trade to fund conservation, yet international trade remains banned. By contrast, a recent national policy amendment allows rhinos to be managed as livestock, risking a shift from rhino-for-conservation to rhino-for-production on private land. Our findings highlight an urgent need to ensure policies keep pace with dynamic socioeconomic environments that influence the sustainability of wildlife use. 相似文献
948.
This paper demonstrates how parsimonious models of sinusoidal functions can be used to fit spatially variant time series in which there is considerable variation of a periodic type. A typical shortcoming of such tools relates to the difficulty in capturing idiosyncratic variation in periodic models. The strategy developed here addresses this deficiency. While previous work has sought to overcome the shortcoming by augmenting sinusoids with other techniques, the present approach employs station-specific sinusoids to supplement a common regional component, which succeeds in capturing local idiosyncratic behavior in a parsimonious manner. The experiments conducted herein reveal that a semi-parametric approach enables such models to fit spatially varying time series with periodic behavior in a remarkably tight fashion. The methods are applied to a panel data set consisting of hourly air pollution measurements. The augmented sinusoidal models produce an excellent fit to these data at three different levels of spatial detail. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
949.
Chang Kyoo Yoo Kris Villez Stijn W.H. Van Hulle Peter A. Vanrolleghem 《Environmetrics》2008,19(6):602-617
Wastewater treatment plants (WWTPs) remain notorious for poor data quality and sensor reliability problems due to the hostile environment, missing data problems and more. Many sensors in WWTP are prone to malfunctions in harsh environments. If a WWTP contains any redundancy between sensors, monitoring methods with sensor reconstruction such as the proposed one can yield a better monitoring efficiency than without a reconstruction scheme. An enhanced robust process monitoring method combined with a sensor reconstruction scheme to tackle the sensor failure problems is proposed for biological wastewater treatment systems. The proposed method is applied to a single reactor for high activity ammonia removal over nitrite (SHARON) process. It shows robust monitoring performance in the presence of sensor faults and produces few false alarms. Moreover, it enables us to keep the monitoring system running in the case of sensor failures. This guaranteed continuity of the monitoring scheme is a necessary development in view of real-time applications in full-scale WWTPs. Copyright © 2007 John Wiley & Sons, Ltd. 相似文献
950.
We consider modelling time series of amounts which may be zero using a stochastic first‐order Markov model with mixed transition density having a discrete component at 0 and a continuous component describing non‐zero amounts. The models extend chain‐dependent stochastic models in the literature on modelling rainfall. Under certain assumptions the Markov chain likelihood can be factored to allow model parameters to be estimated by maximum likelihood using standard Generalized Linear Models methods and software. The results give estimates of seasonal patterns in mean amounts and probability distributions of amounts. We illustrate with 30 years of daily rainfall data from Melbourne, Australia. Copyright © 2000 John Wiley & Sons, Ltd. 相似文献