56,834 research outputs found
Phylogeny and systematics of the giant rhinoceros beetles (Scarabaeidae: Dynastini)
This report contains the first inclusive phylogenetic analysis and taxonomic structure for the genera presently included within the scarabaeid tribe Dynastini. The study was based upon morphological, biogeographic and molecular data and yielded direct support for the recognition of three subtribes in the Dynastini: Dynastina MacLeay, New Status (Dynastes Kirby, Augosoma Burmeister, Megasoma Kirby, Golofa Hope), Xylotrupina Hope, New Status (Xylotrupes Hope, Allomyrina Arrow, Trypoxylus Minck, Xyloscaptes Prell) and Chalcosomina Rowland and Miller, New Subtribe (Chalcosoma Hope, Haploscapanes Arrow, Beckius Dechambre, Eupatorus Burmeister, Pachyoryctes Arrow). The results provide indirect but significant support for the origin of the tribe Dynastini to be of an age no later than the early Late Cretaceous. Molecular and morphological evidence suggests that Eupatorus as constituted in current taxonomic literature is not monophyletic, and taxonomic alternatives are discussed to address this deficiency. A plausible explanation is also provided for the perplexing use by F. W. Hope of the family-group names Xylotrupidae and Dynastidae
Tracking and data system support for the Mariner Mars 1971 mission. Volume 2: First trajectory correction maneuver through orbit insertion
The Deep Space Tracking and Data System activities in support of the Mariner Mars 1971 project from the first trajectory correction maneuver on 4 June 1971 through cruise and orbit insertion on 14 November 1971 are presented. Changes and updates to the TDS requirements and to the plan and configuration plus detailed information on the TDS flight support performance evaluation and the preorbital testing and training are included. With the loss of Mariner 8 at launch, a few changes to the Mariner Mars 1971 requirements, plan, and configuration were necessitated. Mariner 9 is now assuming the former mission plan of Mariner 8, including the TV mapping cycles and a 12-hr orbital period. A second trajectory correction maneuver was not required because of the accuracy of the first maneuver. All testing and training for orbital operations were completed satisfactorily and on schedule. The orbit insertion was accomplished with excellent results
Supporting the transition from HND Social Sciences into BPS accredited second year psychology degrees
Executive Summary Under the auspices of the Higher Education Academy Psychology Network, and supported by the Scottish Funding Council, a small Colleges/ HEI working group was set up with the objective of investigating any pedagogical objections which could be a barrier to transition for students with a HND in Social Sciences articulating to second year BPS accredited degrees in Psychology. To investigate possible gaps in curriculum between Psychology content in the newly validated HND Social Sciences and that of first year undergraduate in HEIs, a survey of the course content, delivery and assessment methodology of undergraduate Psychology courses were undertaken. The findings were then compared to those in the Psychology component delivered in the newly validated (May 2006) HND Social Sciences. The survey showed that there was a communality of curriculum between the Psychology content of the HND and the first year undergraduate in Scottish HEIs, and that the delivery and assessment methods needed for the successful completion of the HND were comparable. To order to assess the likely consistency of delivery between Scotlandâs Colleges and the HEI sector a comparison of the main Quality Assessment procedures were undertaken with the parallel processes in place for colleges by the SQA and HMIE. Information from the following four areas was examined. ⢠⢠⢠Provision of SPSS Licence and tutor training across the Scotlandâs Colleges Matching of optional topics by Course Leaders in colleges to those widely used in Universities Wide distribution of this report to all interested parties ⢠⢠⢠⢠Resource review Content review Assignments â setting, undertaking and grading Recording processes The exercise showed clearly that there were rigorous Quality Assurance mechanisms in place in colleges which compared well to those present in HEIs. The report concludes that there are no pedagogical barriers to second year entry to Psychology courses for HND Social Science students qualified under the newly validated format. Several recommendations to improve HND/HEI transition into second year Psychology degrees, including; To assist greater transparency and clarity with regard to UCAS applications and admission to HEIs, a number of short advice/recommendation documents to assist students, college tutors and HEI admission officers are attached
Online Thermal Analysis of Batch Roasted Coffee Beans
We constructed and instrumented a fluidised-bed coffee roaster. This work has been carried out as part of a search for the âideal pointâ, which is the point in time when an expert roaster would terminate the roast in order to yield beans that produce the optimal brew. We roasted Costa Rican Arabica beans whilst controlling the roasting temperature to follow a linear ramp. We measured and recorded the input, output, and coffee bean surface temperatures. We introduce the idea of âbean loadâ, an uncalibrated measure of the heat load presented by the material being roasted. The bean load under constantly-ramping bean surface temperature shows the roast is increasingly endothermic. Toward the end of the roast the endothermic phenomena decrease, or are assisted by exothermic activity. The bean load also has a repeatable dip around first crack. Due to limitations with the roaster we were not able to make reliable measurements at and beyond second crack. We observed no waypoints or events that might be used to pinpoint the âideal pointâ to end the roast
The Internet and Democratic Debate
Presents findings from a survey conducted in June 2004. Looks at the role of the Internet in providing a wider awareness of political views during the 2004 campaign season
How Can Customized Information Change Financial Plans?
Many workers nearing retirement experienced a dramatic decrease in their retirement assets when the stock market crashed in 2008. In order to maintain their expected standard of living in retirement, workers needed to work longer, save more, or do both. To measure the response of older workers to this downturn, the Center for Retirement Research at Boston College (CRR) fielded the CRR 2009 Retirement Survey on a nationally representative sample of 45-59-year-old labor force participants with relatively high pre-downturn assets. This brief is the final in a series of four based on the CRR 2009 Retirement Survey. The first brief described the Survey and highlighted the inclusion of numerous financial, employment, and behavioral factors that are omitted from other surveys. The second brief explored the relationship between these factors and worker responses to the downturn. The third brief examined how worker responses were affected when their options were made explicit â work longer, save more, or live on less in retirement. This brief explores how respondents reacted once they received information tailored to their specific situation. This brief is organized as follows. The first section provides an overview of the workersâ initial responses â work more, save more, both, or neither. The second section describes how these stated responses changed after respondents received âexpert adviceâ that quantified the trade-off based on their specific circumstances. The third section looks at the characteristics of responders who remained committed to taking no action even after the expert advice. The fourth section assesses whether the expert advice led certain respondents to better calibrate their plans. The final section concludes that providing tailored financial advice may help some individuals improve their response to an adverse financial development.
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