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1.
Eran Feitelson 《Journal of Environmental Planning and Management》1994,37(4):379-394
Between 1990 and 1992 Israel's population grew by almost 10%, as a result of a sudden immigration influx. A national plan was prepared to accommodate this population growth in a sustainable manner. This paper reviews how the national plan set to accommodate such population growth without imposing undue environmental hardships on either current or future generations. Using a comprehensive environmental guidelines map and adjunct measures, the plan was able to point a way by which the population increase could be accommodated without damaging sensitive natural resources, increasing pollution to unacceptable levels or aggravating population exposure to hazards or nuisances. This plan thus provides a real‐world illustration of how, with adequate institutional structure, organization, scientific base and political resolve, a large population increase can be accommodated in a manner that does not preclude sustainability notions, even in a highly vulnerable environment. 相似文献
2.
Henneken H Lindahl R Ostin A Vogel M Levin JO Karst U 《Journal of environmental monitoring : JEM》2003,5(1):100-105
A diffusive sampling method for the determination of methyl isocyanate (MIC) in air is introduced. MIC is collected using a glass fiber filter impregnated with 4-nitro-7-piperazinobenzo-2-oxa-1,3-diazole (NBDPZ). The urea derivative formed is desorbed from the filter with acetonitrile and analyzed by means of high-performance liquid chromatography (HPLC) using fluorescence detection (FLD) with lambdaex = 471 nm and lambdaex = 540 nm. Additionally, a method was developed using tandem mass spectrometric (MS-MS) detection, which was performed as selected reaction monitoring (SRM) on the transition [MIC-NBDPZ + H]+ (m/z 307) to [NBDPZ + H]+ (m/z 250). The diffusive sampler was tested with MIC concentrations between 1 and 35 microg m(-3). The sampling periods varied from 15 min to 8 h, and the relative humidity (RH) was set from 20% up to 80%. The sampling rate for all 15 min experiments was determined to be 15.0 mL min(-1) (using HPLC-FLD) with a relative standard deviation of 9.9% for 56 experiments. At 80% RH, only 15 min sampling gave acceptable results. Further experiments revealed that humidity did not affect the MIC derivative but the reagent on the filter prior to and during sampling. The sampling rate for all experiments (including long term sampling) performed at 20% RH was found to be 15.0 mL min(-1) with a relative standard deviation of 6.3% (N = 42). The limit of quantification was 3 microg m(-3) (LC-MS-MS: 1.3 microg m(-3)) for 15 min sampling periods and 0.2 microg m(-3) (LC-MS-MS: 0.15 microg m(-3)) for 8 h sampling runs applying fluorescence detection. 相似文献
3.
von Zweigbergk P Lindahl R Ostin A Ekman J Levin JO 《Journal of environmental monitoring : JEM》2002,4(5):663-666
A diffusive sampling method for determination of methyl isocyanate in air has been developed. A glass fibre filter impregnated with 1-(2-methoxyphenyl)piperazine in a commercially available diffusive sampling device was used to collect methyl isocyanate and the derivative formed was analysed with LC-MS/MS. The sampling rate was determined to be 15.6 ml min(-1), with a relative standard deviation of 7.3%. The sampler was validated for sampling periods from 15 min to 8 h, for relative humidities from 20% to 80% and for concentrations from I to 46 microg m(-3). A field validation was also made and the diffusive sampling results showed no difference compared to a pumped reference method. The impregnated filters have to be stored apart from the diffusive sampler housing and loaded into the sampler prior to each sampling. 相似文献
4.
Sunesson AL Sundgren M Levin JO Eriksson K Carlson R 《Journal of environmental monitoring : JEM》1999,1(1):45-50
Tube type samplers with two different adsorbents, Chromosorb 106 and Tenax TA, were evaluated by laboratory experiments and field tests for simultaneous diffusive sampling of alpha-pinene, beta-pinene and delta 3-carene and subsequent thermal desorption-gas chromatographic analysis. No statistically significant effects of exposure time, concentrations of monoterpenes or relative humidity were found for samplers with Chromosorb 106 when running a factorial design, with the exception of the adsorption of delta 3-carene, for which some weak effects were noted. Samplers with Tenax TA were affected by the sampling time as well as the concentration for all terpenes, with a strong interaction effect between these two factors. The terpenes showed good storage stability on both adsorbents. No effect of back-diffusion was noted when using Chromosorb 106, while Tenax TA showed some back-diffusion effects. The uptake rates, in ml min-1, for the terpenes on Chromosorb 106 were 0.36 for alpha-pinene, 0.36 for beta-pinene and 0.40 for delta 3-carene. The corresponding average values on Tenax TA were 0.30 for alpha-pinene, 0.32 for beta-pinene and 0.38 for delta 3-carene. The field validation proved that diffusive sampling on Chromosorb 106 agreed well with pumped sampling on charcoal for stationary samples, while the personal samples indicated a discrepancy of 25% between Chromosorb 106 and charcoal samples. Tenax TA generally gave lower results than Chromosorb 106 in all field samples. Samplers packed with Chromosorb 106 could be used to monitor terpene levels in workplaces such as sawmills. The major advantages with this method are the sampling procedure, which is simple to perform compared to other techniques, the easily automated analysis procedure and the possibility to reuse the samplers. 相似文献
5.
Tzipora C. Falik-Borenstein MD Stuart A. Holmes Zvi Borochowitz Abi Levin A. Rosenmann Richard A. Spritz 《黑龙江环境通报》1995,15(4):345-349
We describe molecular prenatal diagnosis and carrier detection of tyrosinase-negative oculocutaneous albinism (OCA1A) in two families. In one family, we carried out DNA-based prenatal diagnosis of OCA1A. In the other family, mutation analysis and carrier detection obviated the need for prenatal diagnosis. Molecular analysis is safer and probably more accurate than fetoscopy and fetal scalp biopsy, and should become the method of first choice for prenatal diagnosis of OCA1. 相似文献
6.
Carl Folke Stephen Polasky Johan Rockstrm Victor Galaz Frances Westley Michle Lamont Marten Scheffer Henrik
sterblom Stephen R. Carpenter F. Stuart Chapin III Karen C. Seto Elke U. Weber Beatrice I. Crona Gretchen C. Daily Partha Dasgupta Owen Gaffney Line J. Gordon Holger Hoff Simon A. Levin Jane Lubchenco Will Steffen Brian H. Walker 《Ambio》2021,50(4):834
The COVID-19 pandemic has exposed an interconnected and tightly coupled globalized world in rapid change. This article sets the scientific stage for understanding and responding to such change for global sustainability and resilient societies. We provide a systemic overview of the current situation where people and nature are dynamically intertwined and embedded in the biosphere, placing shocks and extreme events as part of this dynamic; humanity has become the major force in shaping the future of the Earth system as a whole; and the scale and pace of the human dimension have caused climate change, rapid loss of biodiversity, growing inequalities, and loss of resilience to deal with uncertainty and surprise. Taken together, human actions are challenging the biosphere foundation for a prosperous development of civilizations. The Anthropocene reality—of rising system-wide turbulence—calls for transformative change towards sustainable futures. Emerging technologies, social innovations, broader shifts in cultural repertoires, as well as a diverse portfolio of active stewardship of human actions in support of a resilient biosphere are highlighted as essential parts of such transformations. 相似文献
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9.
Eran Vigoda 《组织行为杂志》2002,23(5):571-591
In light of the growing theoretical and practical interest on organizational politics, especially its probable impact on work outcomes, two stress‐related aftermaths of influence and politics in organizations were examined. On the basis of a model by Ferris, Russ, and Fandt ( 1989b ) the idea was pursued that workplace politics may have a long‐range impact on employees' job distress and aggressive behavior in and around organizations. Three samples (n1 = 155, n2 = 184, n3 = 201) were used to examine direct and indirect/mediating relationships among the research variables. Participants were Israeli employees from the private, public, and third sectors. Findings showed that: (1) job distress was an immediate response to organizational politics across the three types of organization, and (2) job distress proved a possible mediator between organizational politics and aggressive behavior as enacted by the employees themselves. Several theoretical and practical implications of the findings that may extend our knowledge on various stress‐related aftermaths of organizational politics are noted. Copyright © 2002 John Wiley & Sons, Ltd. 相似文献
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