278 research outputs found
The impact of voluntary environmental protection instruments on company environmental performance
In the last decade there has been increasing emphasis on the use of voluntary environmental protection tools such as corporate environmental reporting (CER) and environmental management systems (EMSs). There has been relatively little research, however, on the impact of these tools on the actual environmental performance of companies. This paper presents the findings of a survey of 40 companies operating in Western Australia to determine the extent to which the implementation of two voluntary instruments has influenced company environmental performance. The research considered four questions: To what extent have CER and EMSs influenced the environmental performance of companies operating in Western Australia? What are the characteristics of these influences? How does the influence of EMSs on environmental performance compare to that of CER? Have other external factors concurrently influenced environmental performance? In general, most respondents indicated that EMSs had influenced environmental management practices to some extent. On the other hand, CER was seen more as a public relations exercise and had less impact on company practices compared with EMSs. Other factors that influenced environmental performance included pressure from clients, senior management, the public and regulators; corporate culture; and cost savings
Sediment Starvation from Dams in the Lower Mekong River Basin: Magnitude of the Effect and Potential Mitigation Opportunities
Source: ICHE Conference Archive - https://mdi-de.baw.de/icheArchive
Anthelmintic resistance of gastrointestinal nematodes in dairy calves within a pastureâbased production system of south West Western Australia
The objective of this study was to determine the prevalence of gastrointestinal nematodes among post-weaned calves aged between 4 and 12âmonths old within a pasture-based system of south west Australia and quantify the level of anthelmintic resistance. Pre-treatment FECs were monitored on 14 dairy farms. Anthelmintic resistance was assessed on 11 of the farms. Control FECs were compared with anthelmintic FECs at 14âdays post-treatment with doramectin (injectable), levamisole (oral), fenbendazole (oral) and a levamisole/abamectin combination (pour-on). Results demonstrate a strong level of anthelmintic resistance, with at least one class of anthelmintic failing to achieve a 95% reduction in FEC in one or more gastrointestinal nematode species. Doramectin was fully effective against Ostertagia, but C. oncophora displayed resistance in 91% of the farms. Conversely, levamisole was fully effective against C. oncophora, but Ostertagia displayed resistance in 80% of the farms. Fenbendazole resistance was present in both C. onocphora and Ostertagia in 64% and 70% of the farms, respectively. Trichostrongylus showed low resistance, occurring in doramectin (14%) and levamisole/abamectin combination (14%). This study confirms that anthelmintic resistance is common. Regular FEC reduction testing is recommended to monitor and guide decision-making for appropriate anthelmintic usage
Towards quantifying rate of scour using the Erodibility Index Method: case study
This case study presents relationships between total energy input to plunge pools and scour depth at three BC Hydro dams in British Columbia, Canada. Total energy is defined as the product of stream power and time. The relationship indicates the potential to develop a technique quantifying the rate of scour of rock using the Erodibility Index Method (Annandale 1995; 2006).
The scour assessment used the Erodibility Index Method to theoretically quantify scour extent and compare it to observed scour. The Erodibility Index is quantified using in-situ rock parameters including UCS, RQD, joint spacing, aperture, alteration, roughness, and orientation. A graph relating the Erodibility Index and threshold stream power (Annandale 1995) is then used to quantify the ability of the rock to resist the stream power of flowing water. The stream power of the flowing water was quantified using daily discharge records and dam spillway geometries for flip-bucket jets.
Numerically generated scour profiles were used to quantify total energy at the surface of the plunge pool and at depth over time. The total energy input was then correlated with both the modeled and surveyed plunge pool depth to develop the relationship.
The study showed a statistically significant semi-logarithmic relationship between both modeled and surveyed scour depth and total energy input. In both cases, the rate of plunge pool development decreases over time, and continued energy inputs are required to enact changes to depth.
The study revealed that correlations between calculated and observed scour profiles improved with the quality of geologic information and the certainty by which jet stream power and its decay could be quantified. The geologic information at one of the sites was incomplete and resulted in poor comparisons between observed and calculated scour. At the other two sites, where geologic information was more complete comparisons were more favorable
Women, men and coronary heart disease: a review of the qualitative literature
Aim. This paper presents a review of the qualitative literature which examines the experiences of patients with coronary heart disease. The paper also assesses whether the experiences of both female and male patients are reflected in the literature and summarizes key themes.
Background. Understanding patients' experiences of their illness is important for coronary heart disease prevention and education. Qualitative methods are particularly suited to eliciting patients' detailed understandings and perceptions of illness. As much previous research has been 'gender neutral', this review pays particular attention to gender.
Methods. Published papers from 60 qualitative studies were identified for the review through searches in MEDLINE, EMBASE, CINAHL, PREMEDLINE, PsychINFO, Social Sciences Citation Index and Web of Science using keywords related to coronary heart disease.
Findings. Early qualitative studies of patients with coronary heart disease were conducted almost exclusively with men, and tended to generalize from 'male' experience to 'human' experience. By the late 1990s this pattern had changed, with the majority of studies including women and many being conducted with solely female samples. However, many studies that include both male and female coronary heart disease patients still do not have a specific gender focus. Key themes in the literature include interpreting symptoms and seeking help, belief about coronary 'candidates' and relationships with health professionals. The influence of social roles is important: many female patients have difficulties reconciling family responsibilities and medical advice, while male patients worry about being absent from work.
Conclusions. There is a need for studies that compare the experiences of men and women. There is also an urgent need for work that takes masculinity and gender roles into account when exploring the experiences of men with coronary heart disease
Incorporating a gender perspective into the development of clinical guidelines: a training course for guideline developers
<p>Abstract</p> <p>Background</p> <p>Dutch guideline-developing organizations do not focus systematically on differences between men and women when developing guidelines, even though there is increasing evidence that being male or female may have an effect on health and health outcomes. In collaboration with two prominent Dutch guideline-developing organizations, we designed a training course to encourage systematic attention to sex differences in guideline development procedures.</p> <p>Methods</p> <p>The course is targeted towards guideline developers. Its aims are to improve awareness concerning the relevance of considering sex differences in the guideline development process, as well as the competence and skills necessary for putting this into practice. The design and teaching methods of the course are based on adult learning styles and principles of changing provider behaviour. It was adjusted to the working methods of guideline organizations. The course was taught to, and evaluated by, a group of staff members from two guideline organizations in the Netherlands.</p> <p>Results</p> <p>The course consists of five modules, each of which corresponds to a key step in the guideline development process. The participants rated the training course positively on content, programme, and trainers. Their written comments suggest that the course met its objectives.</p> <p>Conclusion</p> <p>The training course is the first to address sex differences in guideline development. Results from the pilot test suggest that the course achieved its objectives. Because its modules and teaching methods of the course are widely transferable, the course could be useful for many organizations that are involved in developing guidelines. Follow-up studies are needed to assess the long-term effect of the course on the actions of guideline developers and its utility in other settings.</p
Exploring men's and women's experiences of depression and engagement with health professionals: more similarities than differences? A qualitative interview study
<p>Abstract</p> <p>Background</p> <p>It is argued that the ways in which women express emotional distress mean that they are more likely to be diagnosed with depression, while men's relative lack of articulacy means their depression is hidden. This may have consequences for communicating with health professionals. The purpose of this analysis was to explore how men and women with depression articulate their emotional distress, and examine whether there are gender differences or similarities in the strategies that respondents found useful when engaging with health professionals.</p> <p>Methods</p> <p>In-depth qualitative interviews with 22 women and 16 men in the UK who identified themselves as having had depression, recruited through general practitioners, psychiatrists and support groups.</p> <p>Results</p> <p>We found gender similarities and gender differences in our sample. Both men and women found it difficult to recognise and articulate mental health problems and this had consequences for their ability to communicate with health professionals. Key gender differences noted were that men tended to value skills which helped them to talk while women valued listening skills in health professionals, and that men emphasised the importance of getting practical results from talking therapies in their narratives, as opposed to other forms of therapy which they conceptualised as 'just talking'. We also found diversity among women and among men; some respondents valued a close personal relationship with health professionals, while others felt that this personal relationship was a barrier to communication and preferred 'talking to a stranger'.</p> <p>Conclusion</p> <p>Our findings suggest that there is not a straightforward relationship between gender and engagement with health professionals for people with depression. Health professionals need to be sensitive to patients who have difficulties in expressing emotional distress and critical of gender stereotypes which suggest that women invariably find it easy to express emotional distress and men invariably find it difficult. In addition it is important to recognise that, for a minority of patients, a personal relationship with health professionals can act as a barrier to the disclosure of emotional distress.</p
New data on the systematics and interrelationships of sawfishes (Elasmobranchii, Batoidea, Pristiformes)
New characters based on the arrangement and morphology of dermal denticles
show that sawfishes can be divided into two distinctive groups. The first
group, comprising the knifetooth sawfish Anoxypristis cuspidata, is
characterized by tricuspid denticles variably located on both dorsal and
ventral parts of the body. The second group is represented by species of the
genus Pristis, showing an uniform and homogenous dermal covering of
monocuspidate denticles on both dorsal and ventral sides of the body and within
the buccopharyngeal cavity. Pristis is further divided into two subgroups: the
first comprises species with denticles lacking any keels and furrows (the
smalltooth sawfish Pristis pectinata, the green sawfish Pristis zijsron and the
dwarf sawfish Pristis clavata); the second comprises species with denticles
presenting keels and furrows well differentiated on their anterior part (the
common sawfish Pristis pristis, the largetooth sawfish Pristis perotteti and
the greattooth sawfish Pristis microdon). This investigation of the dermal
covering provides results which agree with studies that separate the same two
species groups of Pristis on the basis of other morphological data
When workplace unionism in global value chains does not function well : exploring the impediments
Improving working conditions at the bottom of global value chains has become a central issue in our global economy. In this battle, trade unionism has been presented as a way for workers to make their voices heard. Therefore, it is strongly promoted by most social standards. However, establishing a well-functioning trade union is not as obvious as it may seem. Using a comparative case study approach, we examine impediments to farm-level unionism in the cut flower industry in Ethiopia. For this purpose, we propose an integrated framework combining two lenses, namely a vertical one (governance and structure of global value chains) and a horizontal one (socio-economic context). We identify 10 impediments that point to three major dimensions contributing to unionisation. These three dimensions include awareness of and interest from workers, legitimacy of trade unions, and capacity of trade unions to act. Furthermore, our results suggest that private social standards may, in certain cases, be counterproductive for the efficient functioning of trade unions. Although we argue that there is no âquick fixâ solution to weak workplace unionism at the bottom of global value chains, we stress the importance of considering the dynamics of, and interactions between, the impediments when designing potential support measures that mitigate negative impacts
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