1,417 research outputs found
Deltatheridium pretrituberculare Gregory & Simpson 1926
No full text<p> <i>Deltatheridium pretrituberculare</i> Gregory & Simpson, 1926</p> <p> Gregory & Simpson (1926); Rougier <i>et al.</i> (1998).</p>Published as part of <i>Suarez, Catalina, Forasiepi, Analia M., Babot, María Judith, Shinmura, Tatsuya, Luque, Javier, Vanegas, Rubén D., Cadena, Edwin A. & Goin, Francisco J., 2023, A sabre-tooth predator from the Neotropics: Cranial morphology of Anachlysictis gracilis Goin, 1997 (Metatheria, Thylacosmilidae), based on new specimens from La Venta (Middle Miocene, Colombia), pp. 497-572 in Geodiversitas 45 (18)</i> on page 541, DOI: 10.5252/geodiversitas2023v45a18, <a href="http://zenodo.org/record/8434228">http://zenodo.org/record/8434228</a>
Deltatheroides cretacicus Gregory & Simpson 1926
No full text<p> <i>Deltatheroides cretacicus</i> Gregory & Simpson, 1926</p> <p> Gregory & Simpson (1926); Rougier <i>et al.</i> (2004).</p>Published as part of <i>Suarez, Catalina, Forasiepi, Analia M., Babot, María Judith, Shinmura, Tatsuya, Luque, Javier, Vanegas, Rubén D., Cadena, Edwin A. & Goin, Francisco J., 2023, A sabre-tooth predator from the Neotropics: Cranial morphology of Anachlysictis gracilis Goin, 1997 (Metatheria, Thylacosmilidae), based on new specimens from La Venta (Middle Miocene, Colombia), pp. 497-572 in Geodiversitas 45 (18)</i> on page 541, DOI: 10.5252/geodiversitas2023v45a18, <a href="http://zenodo.org/record/8434228">http://zenodo.org/record/8434228</a>
Alphadon Simpson 1927
No full text<p> <i>Alphadon</i> Simpson, 1927</p> <p>Lillegraven (1969); Fox (1979b); Montellano (1988).</p>Published as part of <i>Suarez, Catalina, Forasiepi, Analia M., Babot, María Judith, Shinmura, Tatsuya, Luque, Javier, Vanegas, Rubén D., Cadena, Edwin A. & Goin, Francisco J., 2023, A sabre-tooth predator from the Neotropics: Cranial morphology of Anachlysictis gracilis Goin, 1997 (Metatheria, Thylacosmilidae), based on new specimens from La Venta (Middle Miocene, Colombia), pp. 497-572 in Geodiversitas 45 (18)</i> on page 541, DOI: 10.5252/geodiversitas2023v45a18, <a href="http://zenodo.org/record/8434228">http://zenodo.org/record/8434228</a>
Language Understanding in the Wild: Combining Crowdsourcing and Machine Learning
No full textSocial media has led to the democratisation of opinion sharing. A wealth of information about public opinions, current events, and authors’ insights into specific topics can be gained by understanding the text written by users. However, there is a wide variation in the language used by different authors in different contexts on the web. This diversity in language makes interpretation an extremely challenging task. Crowdsourcing presents an opportunity to interpret the sentiment, or topic, of free-text. However, the subjectivity and bias of human interpreters raise challenges in inferring the semantics expressed by the text. To overcome this problem, we present a novel Bayesian approach to language understanding that relies on aggregated crowdsourced judgements. Our model encodes the relationships between labels and text features in documents, such as tweets, web articles, and blog posts, accounting for the varying reliability of human labellers. It allows inference of annotations that scales to arbitrarily large pools of documents. Our evaluation shows that by efficiently exploiting language models learnt from aggregated crowdsourced labels, we can provide up to 25% improved classifications when only a small portion, less than 4% of documents has been labelled. Compared to the six state-of-the-art methods, we reduce by up to 67% the number of crowd responses required to achieve comparable accuracy. Our method was a joint winner of the CrowdFlower - CrowdScale 2013 Shared Task challenge at the conference on Human Computation and Crowdsourcing (HCOMP 2013)
Organic structure determination using 2-D NMR spectroscopy : a problem-based approach / Jeffrey H. Simpson.
No full textpharmacy bookfair2015Includes bibliographical references and index.xvi, 574 pages :"The second edition of this book comes with a number of new figures, passages, and problems. Increasing the number of figures from 290 to 448 has necessarily added considerable length, weight, and, expense. It is my hope that the book has not lost any of its readability and accessibility. I firmly believe that most of the concepts needed to learn organic structure determination using nuclear magnetic resonance spectroscopy do not require an extensive mathematical background. It is my hope that the manner in which the material contained in this book is presented both reflects and validates this belief"-- Provided by publisher
Kanter Revisited: Gender, Power and (In)visibility
No full textThis paper revisits Kanter's (1977) seminal work Men and Women of the Corporation, rereading her account of numerical advantage and disadvantage through a poststructuralist lens which exposes hidden dimensions of gendered power. This lens is captured in the ‘(In)visibility Vortex’ (Lewis and Simpson, 2010) which highlights struggles and tensions around the norm through processes of preservation and concealment within the norm as well as dynamics of revealing, exposure and disappearance as features of the margins. The study draws on developments in feminist theorizing, specially around visibility, invisibility and power, to facilitate this rereading. In so doing, the author demonstrate that while Kanter retreated from explanations based on the gendering of organizations or from recognition of gendered power, these dynamics can be identified in her text. The authors suggest that rereading classic texts can surface dimensions of organizations that have contemporary significance and can inform future research
The fall of partnerships: a commercial decision or a tax decision?
No full textThe fundamental question addressed in this thesis is: can the fall of the ordinary partnership be attributed to commercial (non-tax) considerations, or is it, at least in part, due to the distortionary effects of the tax system? The author seeks to establish, primarily using new empirical research, that the tax system is highly likely to have had a significant role to play in the demise of partnerships. That is not to say that genuine commercial considerations are irrelevant but, given that basic principles of good tax design require that taxation should not affect business form selection, the present situation must be regarded as unsatisfactory. The need for systemic reform, or at the very least steps towards it, is clear.
Chapter 1 presents the statistical background to the thesis. Chapter 2 considers the economic viability of the partnership as an alternative to incorporation for businesses involving more than one owner-manager, highlighting the limited liability illusion. Chapter 3 addresses the failing of the LLP, notwithstanding some initial optimism that the form would be highly attractive to businesses of all sizes. Chapter 4 explores the unfortunate truth that numerous acts of incorporation are, and have been, driven by tax considerations, rather than the sound commercial reasons discussed in Chapter 2. The availability of a double tax saving – perhaps exaggerated by artificial income splitting – in the corporate form for would-be partners leaves the partnership as the most vulnerable form for tax-motivated incorporation. Chapter 5 presents the case for a disincorporation relief as a way out for owner-managers locked into the company structure and concludes the thesis. Annexes A-D provide supplementary information, whilst Annex E provides a postscript on a more controversial proposal involving the decoupling business form and tax treatment
Board of Trustees of the Alabama Department of Archives and History in Montgomery, Alabama.
No full textSeated, left to right: Judge C. J. Coley, Chairman of the Board; Shirley D. McCrary. Standing, left to right: Morris W. Savage; James E. Simpson, Archbishop Oscar H. Lipscomb; Robert E. Steiner, III; George P. Evans; Edwin C. Bridges, Director
Deletion of vitamin D receptor leads to premature emphysema/COPD by increased matrix metalloproteinases and lymphoid aggregates formation
No full textDeficiency of vitamin D is associated with accelerated decline in lung function. Vitamin D is a ligand for nuclear hormone vitamin D receptor (VDR), and upon binding it modulates various cellular functions. The level of VDR is reduced in lungs of patients with chronic obstructive pulmonary disease (COPD) which led us to hypothesize that deficiency of VDR leads to significant alterations in lung phenotype that are characteristics of COPD/emphysema associated with increased inflammatory response. We found that VDR knock-out (VDR(-/-)) mice had increased influx of inflammatory cells, phospho-acetylation of nuclear factor-kappaB (NF-κB) associated with increased proinflammatory mediators, and up-regulation of matrix metalloproteinases (MMPs) MMP-2, MMP-9, and MMP-12 in the lung. This was associated with emphysema and decline in lung function associated with lymphoid aggregates formation compared to WT mice. These findings suggest that deficiency of VDR in mouse lung can lead to an early onset of emphysema/COPD because of chronic inflammation, immune dysregulation, and lung destruction
Positron beam study of annealed silicon nitride films
No full textPositron annihilation spectroscopy has been used to study silicon nitride films grown by plasma-enhanced chemical vapor deposition and annealed at different temperatures. For both silicon-rich and nitrogen-rich films, the positron line shape (S) parameter increases after annealing for 15 min at temperatures up to 700-800 degrees C. This is understood in terms of the fact that removal of the hydrogen by annealing leads to the presence of unpassivated silicon dangling bond sites and vacancy complexes. Annealing at higher temperatures leads to a reduction in the S parameter, consistent with further hydrogen removal producing unpassivated N- sites. (C) 1996 American Institute of Physics.PT: J; CR: ASOKAKUMAR P, 1994, J APPL PHYS, V76, P4935 GOLDBERG RD, 1995, APPL SURF SCI, V85, P287 GOSSMANN HJ, 1992, APPL PHYS LETT, V61, P540 HABRAKEN FHP, 1991, LPCVD SILICON NITRID, P118 HAKVOORT RA, 1991, APPL PHYS LETT, V59, P1687 HAKVOORT RA, 1993, THESIS DELFT U TECHN HEYNS M, 1991, LPCVD SILICON NITRID, P82 LANDFORD WA, 1978, J APPL PHYS, V49, P2473 LANDFORD WA, 1992, NUCL INSTRUM METH B, V66, P65 LANDHEER D, 1995, J APPL PHYS, V78, P2568 LU Z, 1995, J VAC SCI TECHNOL 1, V13, P607 LYNN KG, 1989, CAN J PHYS, V67, P618 MITCHELL LV, 1990, AIP C P, V218, P121 PEROVIC DD, 1991, PHYS REV B, V43, P14257 RUBLOFF GW, 1990, VACUUM, V41, P790 SCHULTZ PJ, 1988, NUCL INSTRUM METH B, V30, P94 SCHULTZ PJ, 1988, PHYS REV LETT, V61, P187 SCHULTZ PJ, 1988, REV MOD PHYS, V60, P701 SIMPSON PJ, 1991, PHYS REV B, V44, P12180 SMITH DL, 1990, J ELECTROCHEM SOC, V137, P614 SMITH DL, 1990, MATER RES SOC S P, V165, P69; NR: 21; TC: 1; J9: J APPL PHYS; PG: 5; GA: TY119Source type: Electronic(1
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