University of Saskatchewan

About: University of Saskatchewan is a education organization based out in Saskatoon, Saskatchewan, Canada. It is known for research contribution in the topics: Population & Health care. The organization has 25021 authors who have published 52579 publications receiving 1483049 citations. The organization is also known as: USask.

Lost in space: population growth in the American hinterlands and small cities

Abstract: The sources of urban agglomeration and the urban hierarchy have been extensively studied. Despite the pivotal role of the hinterlands in theories of the development of the urban hierarchy, little attention has been paid to the effect of urban agglomeration on growth in the hinterlands, particularly in a developed, mature economy. Therefore, this study examines how proximity to urban agglomeration affects contemporary population growth in hinterland U.S. counties. Proximity to urban agglomeration is measured in terms of both distances to higher-tiered areas in the urban hierarchy and proximity to market potential. Particular attention is paid to whether periodic changes and trends in underlying conditions (e.g., technology or transport costs) have altered population dynamics in the hinterlands and small urban centers. Over the period 1950-2000, we find strong negative growth effects of distances to higher-tiered urban areas, with significant, but lesser, effects of distance to market potential. Further, the costs of distance, if anything, appear to be increasing over time, consistent with various recent theories stressing the importance of how new technology affects the spatial distribution of activity in a mature urban system, while factors associated with the New Economic Geography are of lesser importance. (This abstract was borrowed from another version of this item.)

Wikipedia: A Key Tool for Global Public Health Promotion

Abstract: The Internet has become an important health information resource for patients and the general public. Wikipedia, a collaboratively written Web-based encyclopedia, has become the dominant online reference work. It is usually among the top results of search engine queries, including when medical information is sought. Since April 2004, editors have formed a group called WikiProject Medicine to coordinate and discuss the English-language Wikipedia’s medical content. This paper, written by members of the WikiProject Medicine, discusses the intricacies, strengths, and weaknesses of Wikipedia as a source of health information and compares it with other medical wikis. Medical professionals, their societies, patient groups, and institutions can help improve Wikipedia’s health-related entries. Several examples of partnerships already show that there is enthusiasm to strengthen Wikipedia’s biomedical content. Given its unique global reach, we believe its possibilities for use as a tool for worldwide health promotion are underestimated. We invite the medical community to join in editing Wikipedia, with the goal of providing people with free access to reliable, understandable, and up-to-date health information.

Green diesel synthesis by hydrodeoxygenation of bio-based feedstocks: Strategies for catalyst design and development

Abstract: Green diesel or straight chain hydrocarbons are produced by the hydrodeoxygenation of bio-based feedstocks such as vegetable oils and bio-oils. Usage of green diesel for commercial purpose can be economical to cater the energy demands of the present generation. Traditionally, transition metal sulfides have been used for hydrotreating reactions and more recently usage of transition metallic carbide, nitride, boride and phosphide catalysts are gaining importance. In this comprehensive review, it is intended to focus on some major developments in catalyst design methodology pertaining to hydrodeoxygenation (HDO) reaction systems. The details related to the different catalysts used for the hydrodeoxygenation reaction are also discussed. Most of the research works have been carried out using model compounds such as guaiacol and phenol using moderately-highly acidic supports such as Al2O3, ZrO2 and TiO2 and active metals such as palladium, platinum, nickel and molybdenum. Factors to be considered for the choice of feed stock, selection of support material, active metals, promoters and their influence on the hydrodeoxygenation reaction, catalyst design procedure, catalyst preparation method and the influence of the catalyst treatment methods on the morphology of catalyst and their performance are discussed in this review paper. Most research works have focused on usage of acidic support materials and focus on basic support materials is scarce. Choice is promoters is highly dependent on the promoter–support interaction and it is essential to ensure minimum promoter–support interaction for the efficient performance of the catalyst.