2,824 research outputs found
Practical Equality: Discussion with Author Robert L. Tsai
No full textProfessor Timothy Zick discusses a new book titled Practical Equality: Forging Justice in a Divided Nation, with its author, Professor Robert L. Tsai of American University Washington College of Law. Timothy Zick is the John Marshall Professor of Government and Citizenship at William & Mary Law School. His scholarship has explored a wide variety of constitutional issues, with a special focus on the First Amendment. Robert L. Tsai is Professor of Law at American University and a prize-winning essayist in constitutional law and history. Recorded before a live audience at William & Mary Law School on March 14, 2019. The event was sponsored by the American Constitution Society. Professor Tsai was also a panelist during the annual Bill of Rights Journal Symposium on March 15 & 16, 2019
Rethinking motivating operations: A reply to commentaries on Edwards, Lotfizadeh, and Poling (2019)
No full textAs we acknowledged in our initial article (Edwards, Lotfizadeh, & Poling, 2019), the MO concept as popularized by Michael and his supporters, which we hereafter call the “current” concept, has served behavior analysts rather well. For that reason, the revisions of the concept that we proposed in our initial article, no matter how slight, should be challenged. We are grateful to the commentators, most of whom trained with Michael, for exploring the limits of our reconceptualization and for raising issues that we failed to consider. Herein we address what we view as their primary concerns. It is not our goal to argue that they are wrong and we are right, but rather to further discourse in the hope that it helps behavior analysts better understand some of the factors that modulate certain aspects of behavior
A comparison of free access, multiple stimulus without replacement, and concurrent schedule preference assessment methods for evaluating food preference
No full textOutcomes from three preference assessment methods were examined in a study of food preference with goats. The methods used were: free access, multiple stimulus without replacement, and a concurrent schedule analysis. Results from each method were compared, in terms of the preference ranking they produced. Two male goats, one domesticated wild goat and one Saanen, were used as subjects in this study. Each method yielded similar results, although the concurrent schedule test provided more comprehensive information than either of the other methods. There was moderate agreement between the multiple stimulus without replacement and the concurrent schedule tests, however the free access procedure identified only the two most highly preferred items and provided limited information on preference level of the remaining food items. Five foods were tested in this experiment, all of different texture and composition – crushed maize, sheep and goat pellets, chopped lucerne, lucerne haylage, and timothy and lucerne haylage. During the free access, goats were given unrestricted access to a particular food for 12 seconds. During the multiple stimulus without replacement, goats were presented with all five foods simultaneously and allowed to make one choice. Once the subject had selected a food by pressing the respective cover with their muzzle, that cover was removed to allow access to that food only. When the subject stopped eating, the cover was replaced - subjects could then select another food. This process was repeated until either all five feeds had been sampled or goats had not made contact with any covers for fifteen seconds. The concurrent schedule test involved making two foods available concurrently. Food delivery was determined by a VI 60s schedule and controlled by a computer software program that was linked to the apparatus. The assessment procedure was arranged so that each food was tested alongside every other food. Data was analysed in terms of the proportion of time and responses allocated to each food. Proportion of time and responses varied considerably depending on the food that was available concurrently
Exploiting Domain Knowledge in Making Delegation Decisions
No full text@inproceedings{conf/admi/EmeleNSP11, added-at = {2011-12-19T00:00:00.000+0100}, author = {Emele, Chukwuemeka David and Norman, Timothy J. and Sensoy, Murat and Parsons, Simon}, biburl = {http://www.bibsonomy.org/bibtex/20a08b683088443f1fd36d6ef28bf6615/dblp}, booktitle = {ADMI}, crossref = {conf/admi/2011}, editor = {Cao, Longbing and Bazzan, Ana L. C. and Symeonidis, Andreas L. and Gorodetsky, Vladimir and Weiss, Gerhard and Yu, Philip S.}, ee = {http://dx.doi.org/10.1007/978-3-642-27609-5_9}, interhash = {1d7e7f8554e8bdb3d43c32e02aeabcec}, intrahash = {0a08b683088443f1fd36d6ef28bf6615}, isbn = {978-3-642-27608-8}, keywords = {dblp}, pages = {117-131}, publisher = {Springer}, series = {Lecture Notes in Computer Science}, timestamp = {2011-12-19T00:00:00.000+0100}, title = {Exploiting Domain Knowledge in Making Delegation Decisions.}, url = {http://dblp.uni-trier.de/db/conf/admi/admi2011.html#EmeleNSP11}, volume = 7103, year = 2011
Marker-Based Paternity Test in Polycross Breeding of Timothy
No full textAlthough the polycross is a useful and cost effective mating design, a lack of paternal pedigree information is a major limitation for polycross breeding in forage grasses such as timothy (Phleum pratense L.). This study describes a paternity test for use in timothy breeding using polymorphic data on 27 genomic simple sequence repeat markers. The paternity test is a simple exclusion statistical test with a combination of maternal information. It successfully determined paternity (success rate = 97%) for 112 progeny plants derived from three polycross groups (A, B, and D). Indirectly selected paternal parents in polycrosses were inferior to maternal parents directly selected by polycross progeny tests mainly for forage yield. Chi-squared values (χ2) in goodness-of-fit tests of the frequency distribution of paternal parents compared with the expected probabilities revealed unbalanced selection in Polycrosses B and D (χ2 = 141.4*** and 82.7***, respectively). Significant differences among the maternal and paternal parents in breeding values for competitiveness toward legumes and low-digestibility fiber content indicate that unbalanced paternal selection would result from individual phenotypic selection for these traits. These results demonstrate that implementation of a marker-based paternity test in timothy polycross breeding could significantly improve the selection of superior paternal parents and redress problems of parental imbalance
Does the Current Account Matter?
No full textThe purpose of this paper is to investigate in detail the behavior of the current account in emerging economies, and in particular its role if any in financial crises. Models of current account behavior are reviewed, and a dynamic model of current account sustainability is developed. The empirical analysis is based on a massive data set that covers over 120 countries during more than 25 years. Important controversies related to the current account including the extent to which current account deficits help predict currency crises are also analyzed. Throughout the paper I am interested in analyzing whether there is evidence supporting the idea that there are costs involved in running 'very large' deficits. Moreover, I investigate the nature of these potential costs, including whether they are particularly high in the presence of other type of imbalances.
Cenozoic evolution of the eastern Black Sea: a test of depth-dependent stretching models
No full textSubsidence analysis of the eastern Black Sea basin suggests that the stratigraphy of this deep, extensional basin can be explained by a predominantly pure-shear stretching history. A strain-rate inversion method that assumes pure-shear extension obtains good fits between observed and predicted stratigraphy. A relatively pure-shear strain distribution is also obtained when a strain-rate inversion algorithm is applied that allows extension to vary with depth without assuming its existence or form. The timing of opening of the eastern Black Sea, which occupied a back-arc position during the closure of the Tethys Ocean, has also been a subject of intense debate; competing theories called for basin opening during the Jurassic, Cretaceous or Paleocene/Eocene. Our work suggests that extension likely continued into the early Cenozoic, in agreement with stratigraphic relationships onshore and with estimates for the timing of arc magmatism. Further basin deepening also appears to have occurred in the last 20 myr. This anomalous subsidence event is focused in the northern part of the basin and reaches its peak at 15–10 Ma. We suggest that this comparatively localized shortening is associated with the northward movement of the Arabian plate. We also explore the effects of paleowater depth and elastic thickness on the results. These parameters are controversial, particularly for deep-water basins and margins, but their estimation is a necessary step in any analysis of the tectonic subsidence record stored in stratigraphy. <br/
Evaluating Research Impact through Open Access to Scholarly Communication
No full textScientific research is a competitive business – in order to secure funding, promotion and tenure researchers must demonstrate their work has impact in their field. To maximise impact researchers undertake high priority research, aim to get results first, and publish in the highest impact journals. The Internet now presents a new opportunity to the scholarly author seeking higher impact: s/he can now make their work instantly accessible on the Web through author self-archiving. This growing body of open access literature (coupled with new publishing models that make journals available for-free to the reader) maximises research impact by maximising the number of people who can read it, and making it available sooner. Open access also provides a new opportunity for bibliometric research. This thesis describes the relatively recent phenomenon of open access to research literature, tools that were built to collect and analyse that literature, and the results of analyses of the effect of open access and its effect on author behaviour. It shows that articles self-archived by authors receive between 50-250% more citations, that rapid pre-printing on the Web has dramatically reduced the peak citation rate from over a year to virtually instant and how citation-impact – now widely used for evaluation – can be expanded to include a new web metric of download impact
Clarinet quintet in A major, K. 581 ; Horn quintet in E-flat major, K. 407 ; Divertimento in D major, K. 251
No full textMore Author/Title Info: Mozart, Wolfgang Amadeus
Physical Description: 1 audio disc : digital ; 4 3/4 in.
Performers: Stanley Drucker, clarinet (1st work) ; Joseph Robinson, oboe (3rd work) ; L. William Kuyper (2nd & 3rd works), R. Allen Spanjer (3rd work), horns ; Timothy Cobb, double bass (3rd work) ; Elysium String quartet (Jennifer Tiboris, Gary Levinson, violins ; Veronica R. Salas, viola ; Lutz Rath, violoncello).
Event Details: Recorded at the American Academy of Arts and Letters, New York City, Sept. 21, Dec. 2 and 6, 1998
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