Juhl's Formulae for GJMS Operators and Q-Curvatures

Direct proofs are given of Juhl's formulae for GJMS operators and Q-curvatures starting from the original construction of GJMS.Comment: 18 page

Community Fisheries Management Handbook

This handbook is a unique product. It is the first "field guide" to community-based fisheries management focused specifically on fisheries, such as those of the Northwest Atlantic, that are already highly regulated by governmental authorities, with licensing and other requirements that limit access and effort. While a variety of resource materials are available on community-based natural resource management, almost all of these are written by practitioners working in the South (developing countries) and rely on case studies and techniques that have been tested in less industrialized tropical fisheries. Therefore, this handbook is one of the few publications about community-based management in 'Northern' fisheries.The need for this handbook was identified by participants working on an initiative on the Atlantic coast of Canada, "Turning the Tide: Communities Managing Fisheries Together" (www.turningthetide.ca). Turning the Tide works for improved fisheries management through community-based approaches, and through cooperative efforts among aboriginal and non-aboriginal communities. To that end, it has brought together fishermen and their communities to share information and ideas on community-based management, through events such as community forums and study tours. Participants recognized the need for a handbook on community-based fisheries management that is relevant to their own fisheries and that can be used as a tool to provide information and support for practitioners, as well as to document current practices and insights obtained, and to promote and raise public awareness about community-based fisheries management. The stories and insights in the handbook are those of Turning the Tide participants and their allies from around the Atlantic Region – the Atlantic coast of Canada and the north-eastern North America-United States – who shared this information during Turning the Tide activities, and in individual and group interviews, and who reviewed the materials used in producing this handbook. The various tools and ideas explored here are currently being applied in the region, and so the handbook demonstrates how community-based approaches to fisheries management are working today

A concurrent precursor inflow method for Large Eddy Simulations and applications to finite length wind farms

In order to enable simulations of developing wind turbine array boundary layers with highly realistic inflow conditions a concurrent precursor method for Large Eddy Simulations is proposed. In this method we consider two domains simultaneously, i.e. in one domain a turbulent Atmospheric Boundary Layer (ABL) without wind turbines is simulated in order to generate the turbulent inflow conditions for a second domain in which the wind turbines are placed. The benefit of this approach is that a) it avoids the need for large databases in which the turbulent inflow conditions are stored and the correspondingly slow I/O operations and b) we are sure that the simulations are not negatively affected by statically swept fixed inflow fields or synthetic fields lacking the proper ABL coherent structures. Sample applications are presented, in which, in agreement with field data a strong decrease of the power output of downstream wind-turbines with respect to the first row of wind-turbines is observed for perfectly aligned inflow.Comment: 13 pages, 5 figure

A Podcast and Website for Informal Educators and How It Can Disseminate Best Teaching Practices

Informal educators face barriers in delivering high-quality educational experiences. As they are not formally connected with teacher training programs, they frequently receive more content-area knowledge than pedagogical instruction. Thus, informal educators are challenged to discover and master best practices in their field on their own. Economic and learning theorists indicate that professionals share best practices through various socially mediated structures, such as peer learning, culminating in a spontaneous intragroup support structure which Wegner termed a community of practice. Many informal educators, however, cannot participate in such communities because they are physically located in different sites from colleagues performing similar work. Marketing researchers like McClung and Johnson and others have noted that online tools can supplement the community of practice model for professionals separated by geographical distance. This project curates a podcast, website, and electronic newsletter for informal educators. The podcast contains conversations with dozens of informal educators; the website and electronic newsletter expand on those conversations with connections to pedagogical theory. The project’s goal is for these electronic tools to provide information and communications channels for informal educators, thus facilitating a virtual conversation that will eventually support a community of practice

Report of Investigations No. 133 Three-Dimensional Ground-Water Modeling in Depositional Systems, Wilcox Group, Oakwood Salt Dome Area, East Texas

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Informed Consent and the Research Process: Following Rules or Striking Balances?

Gaining informed consent from people being researched is central to ethical research practice. There are, however, several factors that make the issue of informed consent problematic, especially in research involving members of groups that are commonly characterised as \'vulnerable\' such as children and people with learning disabilities. This paper reports on a project funded by the UK Economic and Social Research Council (ESRC) which was concerned to identify and disseminate best practice in relation to informed consent in research with six such groups. The context for the study is the increased attention that is being paid to the issue of informed consent in research, not least because of the broad changes taking place in research governance and regulation in the UK. The project involved the analysis of researchers\' views and experiences of informed consent. The paper focuses on two particular difficulties inherent in the processes of gaining and maintaining informed consent. The first of these is that there is no consensus amongst researchers concerning what comprises \'informed consent\'. The second is that there is no consensus about whether the same sets of principles and procedures are equally applicable to research among different groups and to research conducted within different methodological frameworks. In exploring both these difficulties we draw on our findings to highlight the nature of these issues and some of our participants\' responses to them. These issues have relevance to wider debates about the role of guidelines and regulation for ethical practice. We found that study participants were generally less in favour of guidelines that regulate the way research is conducted and more in favour of guidelines that help researchers to strike balances between the conflicting pressures that inevitably occur in research.Informed Consent; Research Ethics; Regulation of Research; Research Governance; Professional Guidelines