Benefits and barriers in the design of harmonized access agreements for international data sharing

In the past decade, there has been a surge in the number of sensitive human genomic and health datasets available to researchers via Data Access Agreements (DAAs) and managed by Data Access Committees (DACs). As this form of sharing increases, so do the challenges of achieving a reasonable level of data protection, particularly in the context of international data sharing. Here, we consider how excessive variation across DAAs can hinder these goals, and suggest a core set of clauses that could prove useful in future attempts to harmonize data governance

A methodological framework for quantification and valuation of ecosystem services of tree-based intercropping systems

PresentationAlley cropping, also known as tree-based intercropping (TBI), holds a great potential in providing, in agricultural landscapes, a number of ecosystem services such as reduction of nutrient leaching, enhancement of soil nutrient status, increase of soil microbial biomass and diversity, biological pest control and global climate regulation. We developed and tested a framework for biophysical quantification and economic valuation of several such ecosystem services through a case study in southern Québec, Canada. We used a range of mathematical models for quantification of the services and valued them in economic terms. In some instances, we used existing models and equations, but in most instances we developed new ones to meet study objectives. We have found that the economic value of ecosystem services ranged from as low as 24 $ha-1y-1 for pollination to as high as 785$ ha-1y-1 for agricultural products. Water quality regulation ranked highest among the non-market services, followed by air quality regulation and carbon sequestration. The total potential value of TBI ecosystem services was estimated to be 5 billion dollars a year, if the system was implemented in 20 % of Québec’s 1,93 M ha croplands. The study suggests that incentives are needed to interest farmers in adopting TBI systems that benefit society as a whole

Points-to-consider on the return of results in epigenetic research

As epigenetic studies become more common and lead to new insights into health and disease, the return of individual epigenetic results to research participants, in particular in large-scale epigenomic studies, will be of growing importance. Members of the International Human Epigenome Consortium (IHEC) Bioethics Workgroup considered the potential ethical, legal, and social issues (ELSI) involved in returning epigenetic research results and incidental findings in order to produce a set of ‘Points-to-consider’ (P-t-C) for the epigenetics research community. These P-t-C draw on existing guidance on the return of genetic research results, while also integrating the IHEC Bioethics Workgroup’s ELSI research on and discussion of the issues associated with epigenetic data as well as the experience of a return of results pilot study by the Personal Genome Project UK (PGP-UK). Major challenges include how to determine the clinical validity and actionability of epigenetic results, and considerations related to environmental exposures and epigenetic marks, including circumstances warranting the sharing of results with family members and third parties. Interdisciplinary collaboration and good public communication regarding epigenetic risk will be important to advance the return of results framework for epigenetic science

Urban Biodiversity and Landscape Ecology: Patterns, Processes and Planning

Effective planning for biodiversity in cities and towns is increasingly important as urban areas and their human populations grow, both to achieve conservation goals and because ecological communities support services on which humans depend. Landscape ecology provides important frameworks for understanding and conserving urban biodiversity both within cities and considering whole cities in their regional context, and has played an important role in the development of a substantial and expanding body of knowledge about urban landscapes and communities. Characteristics of the whole city including size, overall amount of green space, age and regional context are important considerations for understanding and planning for biotic assemblages at the scale of entire cities, but have received relatively little research attention. Studies of biodiversity within cities are more abundant and show that longstanding principles regarding how patch size, configuration and composition influence biodiversity apply to urban areas as they do in other habitats. However, the fine spatial scales at which urban areas are fragmented and the altered temporal dynamics compared to non-urban areas indicate a need to apply hierarchical multi-scalar landscape ecology models to urban environments. Transferring results from landscape-scale urban biodiversity research into planning remains challenging, not least because of the requirements for urban green space to provide multiple functions. An increasing array of tools is available to meet this challenge and increasingly requires ecologists to work with planners to address biodiversity challenges. Biodiversity conservation and enhancement is just one strand in urban planning, but is increasingly important in a rapidly urbanising world

Determination Of Sex From The Hyoid Bone

This article explores size differences related to sex in the hyoid bones from the Robert J. Terry Anatomical Collection. A series of measurements were taken from 398 hyoids, both fused and unfused. The inclusion of unfused hyoids in the study provides the opportunity to investigate previously unknown size differences between sexes as well as to determine their utility in determining sex. Two-way ANOVA was used to explore differences in hyoid size as related to ancestry and sex. Discriminant function analysis was employed to test the ability of the hyoids to be classified by sex. Six discriminant function equations ranging in accuracy from 82% to 85% are provided, each of which is more accurate than many of the discriminant functions developed in past hyoid research, are simple to use, and can be used to estimate the sex of a hyoid regardless of its state of fusion. In addition to providing further information about the morphological form of the hyoid, these analyses provide a method that can be easily employed to assess sex of the individual from the hyoid bone. © 2010 Wiley-Liss, Inc

Exploring Ancestral Variation Of The Hyoid

This study utilizes metric analysis to examine size and shape variation between hyoids of Africans and Europeans in the Robert J. Terry Anatomical Collection. A total of 200 fused and unfused hyoids were measured and three statistical methods were employed to explore variation between ancestries. First, independent sample t-tests showed that some significant size differences do occur between ancestries. Second, to examine shape variation, skeletal measurements were regressed on the geometric mean using least squares linear regression with the residuals used to evaluate size-corrected shape differences. Finally, discriminant function analysis was used to develop two functions for ancestry prediction with overall accuracies of 73% and 77%. Results of the analyses suggest hyoid size and shape differences do occur between ancestries, notably that European hyoids are broader than African hyoids, while the African hyoid is longer than Europeans. © 2011 American Academy of Forensic Sciences

Pathological Skeletal Remains From Ancient Egypt: The Earliest Case Of Diabetes Mellitus?

The diagnosis of diabetes mellitus from skeletal remains is very difficult given the complexity of the disease and the fact that there are no pathological skeletal characteristics exclusively associated with diabetes mellitus. Skeletal identification of diabetes mellitus may only be possible through differential diagnosis, when several pathological changes are present. Skeletal and dental changes associated with diabetes mellitus include Charcot\u27s joint (neuropathic arthropathy), osteoporosis, osteoarthritis, diffuse idiopathic skeletal hyperostosis (DISH, or Forestier\u27s disease), adhesive capsulitis (frozen shoulder), dental caries, periodontal disease, and antemortem tooth loss. Skeletal remains of an adult male from the Egyptian archaeological site of Dayr al-Barsha, dated to the Middle Kingdom (ca. 2055-1650 BC), display a myriad of pathological conditions that, when considered together, likely indicate diabetes mellitus, specifically type 2 diabetes mellitus. This diagnosis represents the earliest, and possibly the only recorded archaeological skeletal evidence for this disease. © 2010 John Wiley & Sons