园林树木保健问题的探讨

本文论述了影响树木健康的原因和园林树木保健措施。     

Food abundance and parental care in yellow warblers (Dendroica petechia)

Emlen and Oring (1977) suggested that monogamy in birds is maintained because of the need for strict biparental care. A corollary of their suggestion is that paternal care should decrease under conditions of high food abundance. An alternative is that paternal care would increase if males take advantage of the higher food abundance by trying to reduce the length of the nestling feeding period. We tested these two ideas using yellow warblers (Dendroica petechia) by providing some pairs with supplemental food, thereby reducing the importance of biparental care. However, the extra food did not decrease paternal effort, nor did it increase it (Fig. 2). Early in the nestling period experimental females brooded more but visited their nestlings less than did control females, but later, when brooding times decreased, experimental females fed their nestlings more than did control females (Fig. 3). There were no significant differences in nestling survival (Fig. 5), but nestlings in the control treatment were larger and heavier up to 6 days old (Fig. 6). The main effect of supplemental food was on maternal, not paternal behaviour. Models of biparental care assume interdependence between the parental effort of both parents. In this species, however, males and females provide for their brood independently from each other.     

The contribution of traumatic brain injury to the medical and economic outcomes of motor vehicle-related injuries in Ohio

Objective

To describe traumatic brain injury (TBI) among injured roadway users. Aim 1 assessed the association of age, gender, alcohol/drug use, safety equipment use, type of roadway user, metropolitan area, and primary payer with motor vehicle-related TBI outcome. Aim 2 assessed the relationship of motor vehicle-related TBI and risk/protective factors with medical and economic outcomes.

Methods

Population-level hospital and trauma databases from the Ohio Hospital Association and Ohio Department of Public Safety, respectively, were probabilistically linked for 2003 through 2006. Injured roadway users (motor vehicle occupants, motorcyclists, bicyclists, pedestrians, and others) were assessed for TBI, ventilator use, intensive care unit (ICU) admission, injury severity score (ISS), need for rehabilitation, death, and total hospital charges.

Results

The odds of a motor vehicle-related TBI were greater among those not using safety equipment (OR = 1.56). The interactions of alcohol/drug use by gender and of alcohol/drug use by location were significant. Sustaining a TBI increased the odds of requiring ventilation (OR = 3.66), being admitted to the ICU (OR = 2.51), having a high ISS (OR = 4.24), requiring rehabilitation (OR = 2.22), or death (OR = 2.52). When compared with a non-TBI, total hospital charges increased by a factor of 1.35 for a TBI. Hospital charges were $46,441 on average for individuals who sustained a TBI, whereas mean hospital charges were $32,614 for patients with a non-TBI.

Conclusions

Among injured roadway users, individuals who sustain a TBI are more likely to require extensive medical care and have injuries resulting in death.

Impact on industry

Prevention strategies aimed at reducing alcohol use and increasing safety device use should be encouraged to reduce the burden of TBI.     

Determinants of coverage in Community‐based Therapeutic Care programmes: towards a joint quantitative and qualitative analysis

One of the most important elements behind the success of Community‐based Therapeutic Care (CTC) programmes for the treatment of severe acute malnutrition has been their ability to achieve high levels of coverage. In CTC, coverage is measured using the Centric System Area Sampling (CSAS) method, which provides accurate and reliable estimates of programme coverage as well as information on the primary reasons for non‐attendance. Another important feature of CTC programmes is their use of socio‐cultural assessments to determine potential barriers to access and to develop context‐specific responses. By analysing data on non‐attendance provided by CSAS surveys, in conjunction with data from socio‐cultural assessments, it is possible to identify common factors responsible for failures in programme coverage. This paper focuses on an analysis of data from 12 CTC programmes across five African countries. It pinpoints three common factors (distance to sites, community awareness of the programme, and the way in which rejections are handled at the sites) that, together, account for approximately 75 per cent of non‐attendance.     

Prevention and cleanup of dynamic harm under environmental liability

This paper explores incentives for accident prevention and cleanup when firms are subject to environmental liability. In our two-period setup, the level of environmental harm in the second period depends on first-period harm when cleanup was incomplete. Under strict liability, in the first period, firms with a positive probability of going out of business before the second period have inadequate prevention and cleanup incentives. The fundamental disconnect between private incentives and social optimality cannot be remedied by using a multiple of harm as the level of compensation. Under negligence with a causation requirement, incentive problems remain; however, under negligence without such a requirement, first-best incentives may emerge, and using a multiple of harm as the level of compensation can ensure the efficient solution.     

论企业文化与石化行业HSE管理

结合国外石油化工企业管理的实践经验,针对我国石化企业的HSE现状,以企业文化为切入点,论述了如何建设企业健康的HSE文化,从而提升企业HSE管理绩效的问题.     

中国环保非政府组织（ENGO）发展初探

随着环境问题的日益严重，中国的环保非政府组织（ENGO）不断涌现和发展，成为保护生态资源、防治环境污染、唤起公民环保意识和促进公众参与的重要力量。然而，受诸多因素制约，中国ENGO的发展不尽如人意。因此分析中国ENGO的发展困境、探讨促进其发展的建议对于发挥ENGO的积极作用，促进可持续发展具有重要的意义。文章以厦门市绿十字环保志愿者中心为例，剖析了中国ENGO的发展困境及其产生的原因，并在此基础上探讨了改善中国ENGO发展的几点设想。     

自愿型环境规制:研究进展及未来展望

环境规制工具的选择决定了生态环境保护的成效,环境规制研究也是当前资源环境领域的研究热点之一。根据政府赋予被规制对象自由裁量权空间从小到大,可以将规制工具分为纯粹政府规制、元规制、自我规制、无约束的自由四种类型。既有研究对传统的纯粹政府规制工具给予了大量的关注,相比而言,对元规制和自我规制等自愿型环境规制工具的关注相对较少。已有的自愿型环境规制的研究主要从俱乐部物品理论、制度主义理论、利益相关者理论等视角出发,探讨自愿型环境规制的供给和需求问题。自愿型环境规制工具作为一种俱乐部物品,实践中面临的最大挑战在于如何克服企业的“搭便车”行为。现有的实证研究分别将自愿型环境规制作为自变量和因变量,分别探究①自愿型环境规制对企业环境绩效和经济创新绩效的影响,以及②企业参与自愿型环境规制的内外部动因。对比国内外文献我们发现,目前基于中国的社会经济背景下的自愿型环境规制的研究非常欠缺,这主要是因为中国在环境规制领域具有长期使用纯粹政府规制工具的传统,自愿型环境规制的实践较为欠缺,目前在中国实践较为广泛的自愿型环境规制工具仅有ISO14001环境管理体系以及化工行业的“责任关怀”体系。最后,本文基于现有对于中国自愿型环境规制研究的不足,展望了未来研究可能的方向。我们认为既有对于自愿型环境规制的研究更多关注对企业绩效的因果效应,而对其如何影响企业绩效的因果机制识别不足;此外,现有文献很少将中国特色的政治、经济、社会因素纳入自愿型环境规制的研究领域,未来的研究应当多从这两个方面着手深入。     

The impact of a refurbishment of two communal spaces in a care home on residents’ subjective well-being

This study investigates the impact of a refurbishment of two communal spaces —lobby and recreation room— of a care home in the Netherlands on residents’ subjective well-being. The refurbishments aimed to improve the aesthetic appearance of both spaces and to offer residents more possibilities for controlled interaction. Data were collected by means of pre- and post-intervention interviews among all residents that were able to respond (N = 39), and by means of observations. Results showed that most respondents evaluated the refurbishment of both spaces positively on residential quality, aesthetic quality, and possibility for controlled interaction. In addition, residents’ subjective well-being increased significantly. Subjective well-being appeared to be quite strongly related to the 3 evaluative aspects. Results suggest that the physical changes in care homes can help improve residents’ subjective well-being.