196,086 research outputs found
Quasi giochi d’azzardo
No full textCon il termine di “quasi gioco d’azzardo” si indicano tutte le pratiche ludiche cui manca l’elemento del lucro, in senso monetario, ma che si fondano su un meccanismo di alea- torietà che configura, o può configurare, comportamenti di gioco caratterizzati dalla rinuncia all’azione e dalla negazio- ne del valore dell’impegno
Luminescence of Selective Optical Pumping of Excitons in GaSe
No full textWe measured selective luminescence and excitation spectra at 80 K over the energy range of the direct absorption features in the layer semiconductor GaSe. Fluorescence line-narrowing of the excitonic band and shift of the emission peak, with respect to the exciting energy, of n=1 and n=2 excitonic recombinations were observed. These effects are connected to excitons localized by the presence of stacking disorder of layers
Radiative Decay from Free and Bound Excitons in GaSe
No full textSpontaneous excitonic luminescence in GaSe in investigated from 80 to 300 K and at weak laser excitation intensity. Radiative recombinations of direct and indirect free excitons are clearly observed. The analysis of the emission lines as a function of the temperature, of the excitation intensity, and of laser energy permits to attribute two lines of the intrinsic luminescence to the recombination of direct and indirect excitons bound to defect centers localized in the energy gap. On the basis of recent theories on exciton-impurity complexes, it is found that in the crystals the excitonic binding centers are deep neutral acceptors. From the dissociation energy of the bound excitons the ionization energy of the acceptor levels is estimated. Moreover, the measurements seem to indicate that thermal equilibrium between direct and indirect excitonic states is lacking below about 100 K
Dr. Duane M. Jackson, Morehouse College, July 2011
No full textThis video is a conversation with Dr. Duane M. Jackson. Dr. Jackson talks about his paper, "Recall and the Serial Position Effect: The Role of Primacy and Recency on Accounting Students' Performance." Jackie Daniel, AUC Woodruff Library, is the interviewer
"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States" By M. Carey.
No full text"Reflections on the subject of Emigration from Europe with a view to Settlement in the United States: containing bried sketches of the moral and political character of those states.
By M. Carey, member of the American philosophical, and of the American Antiquarian Society, and author of The Olive Branch, Cindiciae Hibernicae, essays on banking, on political economy, and on internal improvement.
To which are now added the English editor's comments on the subject; together with Important Advice to Emigrants, and Cautions Against Impositions Practiced in the Outports
Dispelling the Myths Behind First-author Citation Counts
No full textWe conducted a full-scale evaluative citation analysis study of scholars in the XML research field to explore just how different from each other author rankings resulting from different citation counting methods actually are, and to demonstrate the capability of emerging data and tools on the Web in supporting more realistic citation counting methods. Our results contest some common arguments for the continued
use of first-author citation counts in the evaluation of scholars, such as high correlations between author rankings by first-author citation counts and other citation
counting methods, and high costs of using more realistic citation counting methods that are not well-supported by the ISI databases. It is argued that increasingly available digital full text research papers make it possible for citation analysis studies to go beyond what the ISI databases have directly supported and to employ more
sophisticated methods
Dr. Glendon Swarthout
No full textHosted by Roger M. Busfield, MSU Assistant Professor of Speech and Theater, Meet the Author is designed to introduce a general audience to a contemporary author and their work through in-depth interviews. This episode features a conversation between Dr. Glendon Swarthout, prolific author and English professor at MSU, and assistant professors Sam S. Baskett and Theodore B. Strandness
European Sourcebook of Crime and Criminal Justice Statistics 2014
No full textHow do the police deal with crime throughout Europe? What decisions are taken by the prosecution services? How many offenders are convicted and how are they sentenced? What proportion of offenders are male, and what proportion are female? How many minors and foreigners are dealt with by the criminal justice system? How many police officers and prosecutors are there in a given country? How many prisoners are held in European prisons? How many of them are in pre-trial detention? How widely are community sanctions and measures used? What kind of work do the probation agencies do? What can we learn from victimization surveys?
The fifth edition of the European Sourcebook of Crime and Criminal Justice Statistics contains data for 41 European countries, covering developments from 2007 to 2011. This is the most comprehensive collection of data available on crime and criminal justice in Europe.
The Sourcebook provides accurate and validated national data, but most of all helps in understanding how the European criminal justice systems work. The data are supplemented by extensive notes that explain differences in the definition of offences and of penal measures, as well as differences in recording practice. These notes help the reader to understand the possible limitations to the comparability of the data
Simulation of thermal plant optimization and hydraulic aspects of thermal distribution loops for large campuses
No full textFollowing an introduction, the author describes Texas A&M University and its utilities system. After that, the author presents how to construct simulation models for chilled water and heating hot water distribution systems. The simulation model was used in a $2.3 million Ross Street chilled water pipe replacement project at Texas A&M University. A second project conducted at the University of Texas at San Antonio was used as an example to demonstrate how to identify and design an optimal distribution system by using a simulation model. The author found that the minor losses of these closed loop thermal distribution systems are significantly higher than potable water distribution systems. In the second part of the report, the author presents the latest development of software called the Plant Optimization Program, which can simulate cogeneration plant operation, estimate its operation cost and provide optimized operation suggestions. The author also developed detailed simulation models for a gas turbine and heat recovery steam generator and identified significant potential savings. Finally, the author also used a steam turbine as an example to present a multi-regression method on constructing simulation models by using basic statistics and optimization algorithms. This report presents a survey of the author??s working experience at the Energy Systems Laboratory (ESL) at Texas A&M University during the period of January 2002 through March 2004. The purpose of the above work was to allow the author to become familiar with the practice of engineering. The result is that the author knows how to complete a project from start to finish and understands how both technical and nontechnical aspects of a project need to be considered in order to ensure a quality deliverable and bring a project to successful completion. This report concludes that the objectives of the internship were successfully accomplished and that the requirements for the degree of Degree of Engineering have been satisfied
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