11,828 research outputs found
Bigger, faster, stronger! An overview of anabolic androgenic steroids and their use and impact on the sport industry
The use of anabolic androgenic steroids (AAS) in sport is no longer confined to the power disciplines and has become a wide-spread issue throughout the general population. AAS are synthetic versions of the male hormone testosterone and display both anabolic and androgenic properties. It is the anabolic properties that are responsible for the muscle binding characteristics and are the main attraction for users. The primary purpose of this review was to provide an overview of the use of AAS in the sports industry by outlining the history of AAS use, the role of AAS in the Olympic success of Soviet athletes and the German Democratic Republic. Furthermore, case studies of the high profile cases of Ben Johnson, Marion Jones and Lance Armstrong were also examined along with the consequences of their drug use. Also outlined are the reasons for AAS use, the variety of ways in which they are used and short and long-term adverse side effects associated with their use. This research has highlighted problems with previous AAS literature as there is a lack of research into the long-term side effects of AAS use
Inequality of opportunity and economic development
Just as equality of opportunity becomes an increasingly prominent concept in normative economics, the authors argue that it is also a relevant concept for positive models of the links between distribution and aggregate efficiency. Persuasive microeconomic evidence suggests that inequalities in wealth, power, and status have efficiency costs. These variablescapture different aspects of people's opportunity sets, for which observed income may be a poor proxy. One implication is that the cross-country literature on income inequality and growth may have been barking up the wrong tree, and that alternative measures of the relevant distributions are needed. The authors review some of the detailed microeconomic evidence, and then suggest three research areas where further work is needed.Economic Theory&Research,Inequality,ICT Policy and Strategies,Poverty Impact Evaluation,Primary Education
Using visualization for visualization : an ecological interface design approach to inputting data
Visualization is experiencing growing use by a diverse community, with continuing improvements in the availability and usability of systems. In spite of these developments the problem of how first to get the data in has received scant attention: the established approach of pre-defined readers and programming aids has changed little in the last two decades. This paper proposes a novel way of inputting data for scientific visualization that employs rapid interaction and visual feedback in order to understand how the data is stored. The approach draws on ideas from the discipline of ecological interface design to extract and control important parameters describing the data, at the same time harnessing our innate human ability to recognize patterns. Crucially, the emphasis is on file format discovery rather than file format description, so the method can therefore still work when nothing is known initially of how the file was originally written, as is often the case with legacy binary data. © 2013 Elsevier Ltd
Engineering calculations for communications satellite systems planning
A procedure is described that was used to calculate minimum required satellite separations based on total link carrier to interference requirements. Also summarized are recent results with a switching algorithm for satellite synthesis problems. Analytic solution value bounds for two of the satellite synthesis models studied are described. Preliminary results from an empirical study of alternate mixed integer programming models for satellite synthesis are presented. Research plans for the near future are discussed
Recommended from our members
Holocene Reconstruction of the West Greenland Current and the Greenland Ice Sheet Margin Near Disko Bay Using Foraminiferal Assemblages
The Greenland Ice Sheet (GIS) is currently thinning and retreating. One of the focal points for present research on the GIS retreat is Jakobshavn Isbrae, the largest ice stream on Greenland’s West coast, which is retreating today at least in part from ocean subsurface warming (Holland et al., 2008). Jakobshavn is located in Disko Bay, which receives warm Atlantic water from the West Greenland Current (WGC). In this thesis we present multi-proxy data from four marine sediment cores that help constrain the timing of ice retreat from the continental shelf and identify the marine conditions that accompanied retreat. Cores were taken in a transect from the outer shelf to near the mouth of the isfjord and basal dates give minimum ages of retreat from the shelf, bay sill, and near shore of 11.4, 11.1, and 9.4 cal kyr BP.
Foraminiferal assemblages and IRD counts from these cores indicate that after rapid retreat of the GIS the region experience cold conditions. Atlantic waters, via the WGC were first felt in the bay sometime between 9 and 8.5 cal. kyr BP. A possible strengthening of the WGC is seen on the shelf at approximately 7.0 cal. kyr BP. A dramatic rise in calcareous fauna from 6.2 – 3.5 cal. kyr BP in all cores indicates a significant shift in the strength of the WGC, with warm, Atlantic associated fauna gradually increasing and peaking at 4.5 cal. kyr BP. This coincides with the believed retreat of Jakobshavn Isbrae behind its present margin (Weidick et al.,1990), suggesting that subsurface warming may have played a part in the ice stream’s retreat in the past. The region returns to colder conditions by 3.0 cal. kyr BP, indicating a late onset of neoglacial cooling
Property -- According to Locke
IN the history of ideas the names of John Locke and George Sutherland stand somewhat apart. The one was the author of a celebrated chapter on property ; 1the other was the voice of the United States Supreme Court in the declaration of the invalidity of the minimum wage law; and nearly a quarter of a millenium separates the two intellectual events. The passing of the crowded years belies a causal connection between them; a likeness in thought, and even an occasional turn of expression, betokens more than a coincidence. A comparison of the documents indicates that had it not been for the philosopher, the jurist would not have written as he did. Yet the bond-unless it be through the imperfect medium of Blackstone-is not personal influence. For Locke was only more plausible than other writers of his outlook and generation in setting down what they in common believed, and Sutherland spoke much as other justices might have done on that historic occasion-and had spoken before. The connection lies rather in a continuing stream of thought, comprehending both utterances, in which the principles of Locke and the dicta of Mr. Justice Sutherland are alike symbols
Graduate and Postgraduate Medical Study
The majority of physicians recognize that they must remain continuously as students of medicine and devote no small amount of time and means to this end. The physician who does not, will soon find that the march of medicine has progressed far while he has been indolently standing by
Grain legume agronomy programme.
Lupin agronomy, Series l - Growth factor interactions. 82GE18, 82GE19, 82N038, 82N18, 82MA13. Lupin agronomy, Series 2 - Harvest index response to density 82GE20, 82M24. Lupin agronomy, nutrition, 82GE21, 82MA14, 82M017. Erregulla lupin rotation plots, 81M027, 81M029, 81M030. Grain legumes for wheatbelt rotations, 81GE6,81TS3, 81ME3, 81M05, 81MO14. Grain legume species trials, 81E30, 82NA31, 82JE23, 82E26, 82LG28. Low rainfall, medium soils pH 5.5 to 7.0, 82ME41, 82ES35, 82ES36, 82TS25, 82ME39. Sites that failed, 82GE23, 82ME40, 82JE18. Field pea agronomy, 82LG27, 82LG26. Oat/lupin mixtures for grain feed 82Bu9, 82Bu10, 82AL34. Oat/pea mixtures for hay, 82PE21, 82KA37. Fababean nodulation, 82MD16, 82MN25
Part 4 Field pea agronomy
Time of planting effect and rate of seeding effect. Field Pea Agronomy 1972 Effeot of time of planting The 1972 season started late (end of May) and with a dry September forced the plants to an early maturity. Delaying seeding from May until July did not have much effect on grain yields. The best yields were produced with seeding done on the 30th June. Earlier sown treatments had greater weed competition. The varieties White Brunswick and Derrimut were early enough to produce higher yields with July time of planting. At Kulikup, where reproductive observations were made, delaying the planting from May until June reduced the vegetative stage in each variety. However delaying seeding from June until July allowed the vegetative stage of each variety to increase. When seeding late-July, the varieties were probably unable to accumulate sufficient low temperatures 72A7, 72A8, 72BR14, 72M4, 72MT32, 72MT33
- …