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11.
New Zealand (NZ) dairy farms used to be the lowest input and most efficient dairy farms of the world. However, intensification of the traditional pasture-based system has occurred over the last decade and has not always been accompanied by increased efficiency. The purpose of this paper is to produce an updated reference of the eco-efficiency of NZ dairy farm systems and to analyse the implications of intensification on their eco-efficiency. Results for an average NZ dairy farm system were compared with those for three dairy farmlet systems representing a wide range in intensification practices. A low input system (LI) (no N fertiliser, no brought-in feed supplement, stocking rate of 2.3 cows/ha) was compared with an N-fertilised farm system (NF) (170 kg fertiliser-N/ha/year, 3 cows/ha) representing a first level of intensification and with an N-fertilised and maize silage supplemented system (NFMS) (170 kg fertiliser-N/ha/year, 13 t DM maize silage/ha/year, 5.2 cows/ha), representing a possible future intensification option. Their eco-efficiency in terms of milk production and land use was compared using Life Cycle Assessment (LCA) methodology. NZ dairy farm systems rely on favourable temperate climate conditions and long-term perennial ryegrass/white clover pasture, to achieve eco-efficient milk production and land use compared to European systems. However, intensification of NZ dairy farms was shown to be detrimental to their eco-efficiency in terms both of milk production and land use functions and could greatly reduce their advantage compared to European systems. The eco-efficiency of LI was very high whatever the functional unit which is remarkable from an LCA perspective. NF and NFMS had a similar eco-efficiency except for energy use which corresponded to the most critical hot spot of NFMS. All studied NZ systems presented some areas for improvement where some new technologies available for dairy farms might play a promising role in the future. Finally, it should be highlighted that the comparison with European studies based on the literature available needs validation through a more comprehensive study using harmonised methodology and assumptions across countries. 相似文献
12.
The conjoint community resiliency assessment measure as a baseline for profiling and predicting community resilience for emergencies 总被引:2,自引:0,他引:2
Odeya Cohen Dima Leykin Mooli Lahad Avishay Goldberg Limor Aharonson-Daniel 《Technological Forecasting and Social Change》2013
Community resilience is a term that describes the community's ability to function amidst crises or disruptions. Community resilience is perceived as a fundamental element in emergency preparedness and as a mean of ensuring social stability in the face of crises, including disasters. However, there is a paucity of empiric evidence for this conjecture. This paper demonstrates the use of the Conjoint Community Resilience Assessment Measurement (CCRAM) for estimating the ability of a community to be resilient in the face of disaster. Six factors of community resilience were identified based on a study conducted in nine small to medium size towns (N = 886): Leadership, collective efficacy, preparedness, place attachment, social trust and social relationship. Multiple logistic regressions yielded the CCRAM protective factors for perceived community resilience. Receiver Operating Characteristic (ROC) analysis confirmed the quality of the CCRAM as a diagnostic tool for perceived community resilience. The CCRAM tool is presented as a potential provider of information for authorities and decision makers as an aid for foreseeing and planning towards the challenges present during emergency times. 相似文献
13.
随着现阶段人口老龄化趋势越来越明显,我国的老年综合征患者数量逐渐增多,《老年综合征管理指南》对老年综合征有相关阐述,认为老年综合征是指老年人因多种非疾病原因或是疾病原因所引起的同一(或临床表现)老年病症,例如睡眠障碍、吞咽障碍、跌倒、褥疮等均属于老年综合征病症。 相似文献
14.
基于模糊综合评价模型的森林生态旅游项目风险研究——以山西禹王洞森林公园为例 总被引:1,自引:0,他引:1
从系统性出发,指出森林生态旅游项目经营开发中面临两大类风险:内部风险和外部风险,运用模糊隶属函数定量描述不同风险因子风险等级,通过构建模糊综合评价模型分析其内部风险和外部风险水平,进一步研究指出其主要风险因子,提出应根据不同风险具体情况采取有针对性的风险控制措施。最后以山西禹王洞森林公园为例进行了实例研究。 相似文献
15.
我国是世界上地震灾害最严重的地区之一,但与此同时,并未建成相应的住宅地震保险基金,导致地震发生时,民众住宅无法得到保障,生活和生产受到影响。本文从地震的可保性出发,在借鉴了美国、日本以及我国台湾地区建立住宅地震保险基金上的经验后,得到若干建立中国住宅地震保险基金的启示。 相似文献
16.
D. Holt K. Heischmidt H. Hammer Hill B. Robinson J. Wiles 《Teaching Business Ethics》1997,1(3):253-268
Can instructors with apparently divergent approaches to the goals and methods of teaching business ethics agree upon a core set of course objectives? Can they agree upon a common method of assessment for measuring student performance against shared standards? This paper reports the results of a project intended to address these questions. The goals of the project were threefold: (1) to identify a shared set of core competencies for all students in business ethics; (2) to adopt a common assessment of ethical reasoning (neutral to disciplinary bias) for measuring student performance in core competencies; (3) to determine whether students show improvement in core competencies over the course of a semester. Our findings suggest that it is possible to find common ground in measurable objectives and to expect instructors to interpret, apply, and teach to these objectives effectively without infringing upon their disciplinary differences. 相似文献
17.
通过不同卫生技术经济性评估方法的比较研究,探讨不同卫生技术经济性评估指标具体适用情况。方法:本文阐述卫生技术经济性评估的基本概念和评价原理,对几种常用的卫生技术经济性评估指标进行对比分析。结论:认为应以质量调整寿命年为主要指标结合不同技术特点及临床数据来源进行卫生技术经济评估指标的选择。 相似文献
18.
Online retail platforms significantly impact consumers' purchasing decisions. Satisfaction, purchase intent, and repeat online shopping drive the platform's purchasing decisions. In contrast, individuals do not purchase products due to dissatisfaction and lack of purchasing intent. It will cause hesitation and spread negative feedback to influence online consumer behaviors. This research proposes a conceptual model incorporating the Status Quo Bias (SQB) and the Negative Online Purchase Decision-Making Process (NOPDMP) to suggest a new framework for evaluating the maintained consumer behavior of online shopping platforms. The questionnaires following the proposed conceptual model were collected from the sample data from participants of 384 experienced respondents using online shopping platforms. Data were analyzed for the causal relationship using Structural Equation Model. The implications of the assessment framework that incorporates the influence of negative factors can weigh the decision to purchase products and improve and reduce shopping cart abandonment on e-commerce platforms. This framework can also describe instances of negative perspectives regarding incentive alignments with actual behaviors. 相似文献
19.
This paper responds to recent research by Ruland et al. [Ruland, W., Shon, J., Zhou, P., 2007. Effective controls for research in international accounting. Journal of Accounting and Public Policy, 26(1), 96–116.] that addresses the effectiveness of experimental controls for research in international accounting, with focus on Ndubizu and Sanchez [Ndubizu, G.A., Sanchez, M.H., 2006. The valuation properties of earnings and book value prepared under US GAAP in Chile and IAS in Peru. Journal of Accounting and Public Policy 25 (2)]. We attempt to remove some misconceptions about effective experimental controls that have surfaced in the debate. We argue that theory and refined proxies alleviate many of the control issues that have surfaced in the literature. 相似文献
20.
在国外正处于初步发展阶段的遵循管理是风险管理核心相当严重的缺口,传统的仅关注于对外部法规的遵循是不够的。本文通过分析遵循管理国内外研究现状的基础上,探讨了提升企业遵循管理能力需要重点关注的问题。 相似文献