Own Set (own + set)

Distribution by Scientific Domains


Selected Abstracts


Haemophilia 2002: emerging risks of treatment

HAEMOPHILIA, Issue 3 2002
B. L. EVATT
Haemophilia care and treatment products have greatly improved over the past 2 decades. Transitions in treatment produced by these changes were accompanied by the emergence of unexpected risks and new complications. In order to provide the best comprehensive care to patients with haemophilia, healthcare providers periodically need to re-evaluate and adjust their management and therapeutic products to prevent or minimize the effects produced by the emerging issues. For example, reducing the effects of infectious agents remains the highest priority for the haemophilia community because of the high level of morbidity and mortality that has resulted from earlier therapeutic agents. In many countries, the goal has been to achieve absolute zero risk for infectious agents. In some instances, the screening procedures to achieve these goals reduced the availability of plasma needed for manufactured derivatives and produced another emerging risk, shortages of clotting factor preparations. Similarly, better diagnostic methods identified other potential agents that were not inactivated by current technology. Likewise, immune tolerance regimens and the prophylactic management of haemophilia introduced different therapeutic delivery systems with their own risks. The drugs used to manage diseases such as human immunodeficiency virus (HIV), which were transmitted by products manufactured before mid-1980, create their own set of risks for this community. Topical emerging risks of treatment, including variant Creutzfeldt,Jakob disease, an assessment of its risks and impact, the complications of using indwelling catheters, and the role of protease inhibitors used to treat HIV may have on bleeding complications of haemophilia are discussed. [source]


Prognostic and predictive factors in endocrine tumours

HISTOPATHOLOGY, Issue 6 2006
T J Stephenson
This review encompasses the diagnostic features of malignancy, the routinely observable prognostic features and the prognostic and predictive features emerging from research techniques in the principal endocrine neoplasms: pancreatic and extrapancreatic endocrine cell tumours, thyroid and parathyroid neoplasia, adrenal cortical neoplasms and adrenal and extra-adrenal paragangliomas. While each endocrine tissue has its own set of diagnostic features for malignancy, and prognostic features once a diagnosis of malignancy has been established, there are a few common themes. For several endocrine neoplasms, definite recognition of malignancy can be difficult and may depend upon frank invasive or metastatic growth at presentation. Endocrine tissues are dynamic, with hyperplastic and regressive phenomena, some of which may mimic malignancy. Even when unequivocal features of malignancy are available for observation, their distribution in tissue may be very focal, necessitating thorough sampling. The accurate documentation of routinely observable histological features interpreted in the light of current literature has not been superseded by special techniques in the statement of diagnosis or prognosis in the vast majority of endocrine neoplasms. [source]


The rationale of value-laden medicine

JOURNAL OF EVALUATION IN CLINICAL PRACTICE, Issue 1 2002
Michael H. Kottow MA(Soc) MD
Abstract Medicine is becoming increasingly confident that scientific advances, especially in the area of genetics, will allow a major improvement in the control and eradication of disease. This development seems to go hand in hand with health-enhancement strategies, erasing the distinction between the states of health and disease, and blurring the specific goals of medical services. Medicine tends to become an increasingly technocentric practice that relies heavily on expert knowledge and on epidemiological evidence, neglecting the lived-body experience of being ill, and tending to transform costly medical services into commodities only affordable by the affluent. This paper argues that disease is not merely a functional description, but rather a definitely value-laden organismic state that is experienced by the patient, needs to be explored and treated by medical practitioners, and requires the assessment and participation of social institutions concerned with the delivery and support of medical services. Each of these perspectives introduces its own set of values, both in the clinical encounter and in public health programmes. Bioethics seems to be the appropriate discipline to discuss all these values involved, and help assign them properly in order to rescue the caring concern of medicine for the sick, as well as uphold a principle of fairness in publicly funded medical services. [source]


The Making of a Global European Economist

KYKLOS INTERNATIONAL REVIEW OF SOCIAL SCIENCES, Issue 2 2008
David Colander
SUMMARY This paper provides results of a survey of European graduate programs that are designing their programs to be similar to top US programs and compares those results to an earlier study done by the author of US schools. The study (1) provides a profile of European graduate economics students; (2) considers the degree to which European training at these schools differs from U.S. training, (3) offers some insights into the differences that exist among some top European programs in economics, and (4) provides a glimpse of the views that the students have of economics and of the training they are receiving. It finds that these global European programs are similar in many ways to US programs and that the students are satisfied with the programs. However, because of the different job markets in the US and Europe, it is not clear that the training is appropriate for the majority of European students. The paper concludes with a discussion of some of the concerns that should be kept in mind by other programs as they consider adapting their programs to become a ,global' program. These concerns include the argument that the traditional European system did a number of things right; the European academic economics institutional structure is quite different from the U.S. institutional structure; and the U.S. system has its own set of problems. [source]


New product introduction against a predator: A bilevel mixed-integer programming approach

NAVAL RESEARCH LOGISTICS: AN INTERNATIONAL JOURNAL, Issue 8 2009
J. Cole Smith
Abstract We consider a scenario with two firms determining which products to develop and introduce to the market. In this problem, there exists a finite set of potential products and market segments. Each market segment has a preference list of products and will buy its most preferred product among those available. The firms play a Stackelberg game in which the leader firm first introduces a set of products, and the follower responds with its own set of products. The leader's goal is to maximize its profit subject to a product introduction budget, assuming that the follower will attempt to minimize the leader's profit using a budget of its own. We formulate this problem as a multistage integer program amenable to decomposition techniques. Using this formulation, we develop three variations of an exact mathematical programming method for solving the multistage problem, along with a family of heuristic procedures for estimating the follower solution. The efficacy of our approaches is demonstrated on randomly generated test instances. This article contributes to the operations research literature a multistage algorithm that directly addresses difficulties posed by degeneracy, and contributes to the product variety literature an exact optimization algorithm for a novel competitive product introduction problem. © 2009 Wiley Periodicals, Inc. Naval Research Logistics, 2009 [source]


Exploring cultural drivers for wildlife trade via an ethnoprimatological approach: a case study of slender and slow lorises (Loris and Nycticebus) in South and Southeast Asia

AMERICAN JOURNAL OF PRIMATOLOGY, Issue 10 2010
K.A.I. Nekaris
Abstract Illegal and unsustainable trade in wildlife is a major conservation challenge. For Asian primates, economic and cultural traditions, and increased forest access mean that trade may have become detrimental for certain species. Slow and slender lorises (Nycticebus and Loris) are primates particularly prevalent in trade, determined until now by focused counts of lorises in regional markets. Here, we use international trade statistics and a participant,observer approach to assess culturally specific drivers for trade in lorises in South and Southeast Asia, to provide a broader context to help mitigate this practice. Analysis of international records for the last 30 years revealed that live animal trade was more prevalent than trade in body parts (slow lorises, 86.4%; slender lorises, 91.4%), with Laos, Cambodia, and Thailand the largest exporters. We then examine drivers of international and domestic trade based on long-term data from 1994,2009 in Sri Lanka, Cambodia, and Indonesia. We show that slender lorises are important in Sri Lankan folklore, but their use as pets and for traditional medicine is rare. Trade in Bengal slow and pygmy lorises in Cambodia for use in traditional medicines, a practice with deeply historical roots, is widespread. Despite its own set of myths about the magical and curative properties of lorises, trade in Javan, Bornean, and greater slow lorises in Indonesia is largely for pets. Conservation practices in Asia are often generalized and linked with the region's major religions and economies. We show here that, in the case of wildlife trade, culturally specific patterns are evident among different ethnic groups, even within a country. Revealing such patterns is the foundation for developing conservation management plans for each species. We suggest some participatory methods for each country that may aid in this process. Am. J. Primatol. 72:877,886, 2010. © 2010 Wiley-Liss, Inc. [source]


Protein feeds coproduction in biomass conversion to fuels and chemicals

BIOFUELS, BIOPRODUCTS AND BIOREFINING, Issue 2 2009
Bruce E. Dale
Abstract Agriculture has changed greatly in the past in response to changing human needs. Now agriculture is being called on to provide raw materials for very large-scale fuel and chemical production. Agriculture will change again in response to this demand and all producers and users of agricultural feedstocks will be affected by this change. For example, livestock feeding practices have already changed in response to the availability of distillers' grains from corn ethanol production. A fuels industry based on herbaceous biomass energy crops will be many-fold larger than the existing corn ethanol industry and will produce its own set of impacts on livestock feeding. We explore here one of these impacts: the availability of large new sources of feed protein from biomass energy crops. In addition to structural carbohydrates, such as cellulose and hemicellulose, herbaceous biomass energy crops can easily be produced with approximately 10% protein, called ,leaf protein'. This leaf protein, as exemplified by alfalfa leaf protein, is superior to soybean meal (SBM) protein in its biological value. Leaf protein recovery and processing fit well into many process flow diagrams for biomass fuels. When leaf protein is properly processed to concentrate it and remove antinutritional factors, as we have learned over the years to do with soybean meal protein, protein in leaf protein concentrate (LPC) will probably be at least as valuable in livestock diets as SBM protein. If LPC is used to meet 20% of total animal protein requirements (i.e., market penetration of 20%) then the potential utilization of leaf protein concentrate could reach as much as 24 million metric tons annually. This leaf protein will replace protein from SBM and other sources. This much leaf protein will reduce by approximately 16 million hectares the amount of land required to provide protein for livestock. Likewise the amount of land required to meet fuel needs will effectively be reduced by 8 million hectares because this land will effectively do ,double duty' by producing needed animal protein as well as feedstocks for fuel production. © 2009 Society of Chemical Industry and John Wiley & Sons, Ltd [source]


Modeling Longitudinal Spatial Periodontal Data: A Spatially Adaptive Model with Tools for Specifying Priors and Checking Fit

BIOMETRICS, Issue 3 2008
Brian J. Reich
Summary Attachment loss (AL), the distance down a tooth's root that is no longer attached to surrounding bone by periodontal ligament, is a common measure of periodontal disease. In this article, we develop a spatiotemporal model to monitor the progression of AL. Our model is an extension of the conditionally autoregressive (CAR) prior, which spatially smooths estimates toward their neighbors. However, because AL often exhibits a burst of large values in space and time, we develop a nonstationary spatiotemporal CAR model that allows the degree of spatial and temporal smoothing to vary in different regions of the mouth. To do this, we assign each AL measurement site its own set of variance parameters and spatially smooth the variances with spatial priors. We propose a heuristic to measure the complexity of the site-specific variances, and use it to select priors that ensure parameters in the model are well identified. In data from a clinical trial, this model improves the fit compared to the usual dynamic CAR model for 90 of 99 patients' AL measurements. [source]


Exporting governance: Lithuania adapts a Canadian policy management model

CANADIAN PUBLIC ADMINISTRATION/ADMINISTRATION PUBLIQUE DU CANADA, Issue 1 2005
Gordon Evans
A moribund policy management system offered scant hope for quick reversal. To break the impasse, Lithuania's prime minister negotiated a unique, CIDA-funded project to modernize their decision-making system by partnering with the Ontario Public Service and the Institute of Public Administration of Canada. Although slow to gain traction, inspired leadership by a new Lithuanian prime minister, his chancellor and government secretary re-energized efforts to adapt an Ontario policy management model, which endures today. The results, in terms of pace and scope of reform, were impressive. But did they make a difference? In the absence of useful public benchmarks from oecd governments, the project collaborated with the World Bank to develop its own set of indicators for each stage of the policy process. Two surveys, conducted in 2000 and 2002, revealed a dramatic turnaround, underscoring how major change can be quickly implemented when supported by determined leadership. This article reviews the project, the survey methodology and results. Given the centrality of Ontario to Lithuania's reform, the article concludes with a cursory exploration of whether the province applies its own best practices. The answer, not surprisingly, is that it does so, sometimes. Sommaire: Les efforts déployés par la Lituanie pour se joindre à l'Union européenne s'affaiblirent à la fin des années 1990. Un système moribond de gestion des politiques offrait peu d'espoir d'un revirement rapide. Pour mettre fin à l'impasse, le Premier ministre de la Lituanie a négocié un projet unique financé par lacdi pour moder-niser leur système de prise de décision, en établissant un partenariat avec la Fonction publique de l'Ontario et l'Institut d'administration publique du Canada. Même si ce projet fut lent à démarrer, un leadership inspiré par le nouveau Premier ministre litu-anien, son chancelier et secrétaire d'État relança les efforts pour adapter un modèle ontarien de gestion des politiques, qui se trouve toujours en place aujourd'hui. Les resultats, en termes de rapidité et de portée de la réforme, furent impressionnants. Mais ont-ils changé quelque chose? En l'absence de points de repère publics utiles de la part des gouvernements de locde, le projet a collaboré avec la Banque mondiale au développement de ses propres indicateurs pour chaque étape du processus de politique. Deux enquêtes, menées en 2000 et 2002, ont révélé un redressement remar-quable, soulignant comment un changement majeur peut être rapidement mis en ceuvre lorsqu'il a I'appui d'un leadership déterminé. Cet article passe en revue le projet, la méthodologie et les résultats des enquêtes. Étant donné la grande importance de l'Ontario dans la réforme de la Lituanie, en conclusion, l'article examine brièvement si la province applique elle-même ses meilleures pratiques. La réponse, qui n'est pas surprenante, est que oui, elle les applique,Parfois. [source]