Cornell University (cornell + university)

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  • Selected Abstracts


    Racing performance following the laryngeal tie-forward procedure: A case-controlled study

    EQUINE VETERINARY JOURNAL, Issue 5 2008
    J. Cheetham
    Summary Reasons for performing study: The laryngeal tie-forward procedure (LTFP) is becoming widely used for correction of dorsal displacement of the soft palate (DDSP) despite the absence of an evidence-based assessment of its efficacy. Hypotheses: The LTFP returns racing performance to preoperative baseline levels and to that of matched controls; and post operative laryngohyoid position is associated with post operative performance. Design and population: Case-controlled study of racehorses undergoing a LTFP for dorsal displacement of the soft palate at Cornell University between October 2002 and June 2007. Methods: The presence of at least one post operative start and race earnings ($) were used as outcome variables. Controls were matched by age, breed and sex from the third race prior to surgery. A novel radiographic reference system was used to determine laryngohyoid position pre- and post operatively. Data for definitively and presumptively diagnosed cases were analysed separately. Results: During the study interval, 263 racehorses presented, of which 106 were included in the study; 36 had a definitive diagnosis of DDSP and 70 a presumptive diagnosis. Treated horses were equally likely to race post operatively as controls in the equivalent race. Treated horses had significantly lower earnings in the race before surgery than matched controls. The procedure moved the basihyoid bone dorsally and caudally and the larynx dorsally and rostrally. A more dorsal post operative basihyoid position and more dorsal and less rostral laryngeal position were associated with an increased probability of racing post operatively. Conclusions: Horses undergoing a LTFP are as likely to race post operatively as matched controls. The procedure restores race earnings to preoperative baseline levels and to those of matched controls. Potential relevance: This study provides strong evidence supporting the use of the LTFP in racehorses. Further work is needed to determine the relationship between laryngohyoid conformation and nasopharyngeal stability in horses. [source]


    Arthroscopic laser extirpation of metacarpophalangeal synovial pad proliferation in eleven horses

    EQUINE VETERINARY JOURNAL, Issue 3 2001
    D. J. MURPHY
    Summary A new surgical technique for treatment of chronic metacarpophalangeal synovial pad proliferation in the horse and the findings and long-term follow-up from 11 clinical cases are described. The medical records of all equine lameness cases attributed to metacarpophalangeal synovial pad proliferation admitted to the College of Veterinary Medicine at Cornell University (1991,1996) were reviewed and all those treated surgically by laser extirpation were included in this study. Retrieved data included subject details, preoperative lameness, ultrasonography, radiography and synovial fluid evaluations and lesion histopathology. Lesions were ablated using a CO2 or a Nd:YAG laser intra-articularly with arthroscopic guidance. Long-term follow-up was provided by telephone conversation with owners or trainers. All horses had fetlock joint effusion and were lame at presentation. Mean synovial pad thickness measured ultrasonographically was 9.0 mm (range 6,15 mm). Seven horses (64%) had radiographic evidence of remodelling of the dorsal cortex of distal McIII and 3 horses (27%) had concurrent dorsal proximal P1 fractures. No postoperative complications were noted. All 11 horses returned to training within 90 days of surgery without recurrence of the lesion(s). Laser extirpation of metacarpophalangeal synovial pad proliferation using arthroscopic guidance provided a rapid, safe and efficient method for surgical removal of such lesions without complications or recurrence. This surgical technique provides a suitable alternative to more conventional treatments for chronic metacarpophalangeal synovial pad proliferation in horses, particularly for removal of very large, fibrotic masses. [source]


    The "Trial" of Lee Benson: Communism, White Chauvinism, and The Foundations of the "New Political History" in the United States

    HISTORY AND THEORY, Issue 3 2003
    Gerald Zahavi
    Lee Benson was one of the first American political historians to suggest a "systematic" revision of traditional political history with its emphasis on narrow economic class analysis, narrative arguments, and over-reliance on qualitative research methodologies. This essay presents Benson's contributions to the "new political history",an attempt to apply social-science methods, concepts, and theories to American political history,as a social, cultural, and political narrative of Cold War-era American history. Benson belonged to a generation of ex-Communist American historians and political scientists whose scholarship and intellectual projects flowed,in part,out of Marxist social and political debates, agendas, and paradigmatic frameworks, even as they rejected and revised them. The main focus of the essay is the genesis of Benson's pioneering study of nineteenth-century New York state political culture, The Concept of Jacksonian Democracy, with its emphasis on intra-class versus inter-class conflict, sensitivity to ethnocultural determinants of political and social behavior, and reliance on explicit social-science theory and methodology. In what follows, I argue that The Concept of Jacksonian Democracy has its roots in Benson's Popular Front Marxist beliefs, and his decade-long engagement and subsequent disenchantment with American left-wing politics. Benson's growing alienation from Progressive historical paradigms and traditional Marxist analysis, and his attempts to formulate a neo-Marxism attentive to unique American class and political realities, are linked to his involvement with 1940s radical factional politics and his disturbing encounter with internal Communist party racial and ideological tensions in the late 1940s at Cornell University in Ithaca, New York. [source]


    ACCI Memorial Paper: The Scholarly Legacy of E. Scott Maynes

    JOURNAL OF CONSUMER AFFAIRS, Issue 1 2010
    LOREN V. GEISTFELD
    This paper honors E. Scott Maynes, who died on June 24, 2007 and had been a professor emeritus in the Department of Policy Analysis and Management at Cornell University. The paper describes Scott's scholarly legacy in research, highlighting four areas: survey research methods, research using data from Surveys of Consumer Finances, Scott's studies of local consumer markets, and two significant books Scott Maynes authored. The author of this memorial paper concludes that Scott's scholarly legacy is neither a new theory nor a new statistical technique but the importance of vision, passion, perseverance, commitment, and creativity for the applied social science researcher. [source]


    A true impact factor: N. Scott McNutt, MD

    JOURNAL OF CUTANEOUS PATHOLOGY, Issue 2008
    Bruce R. Smoller
    N. Scott McNutt has recently retired from his long-standing position as a Professor in Pathology and Internal Medicine (Dermatology) at Weill Medical College at Cornell University. He leaves behind a legacy that includes trainees throughout the world, many of whom continue to contribute to the world of academic dermatopathology. His obvious love for true scholarship is reflected as much by his indirect influence on hundreds of trainees as by his already impressive personal bibliography. [source]


    Analog pixel array detectors

    JOURNAL OF SYNCHROTRON RADIATION, Issue 2 2006
    A. Ercan
    X-ray pixel array detectors (PADs) are generally thought of as either digital photon counters (DPADs) or X-ray analog-integrating pixel array detectors (APADs). Experiences with APADs, which are especially well suited for X-ray imaging experiments where transient or high instantaneous flux events must be recorded, are reported. The design, characterization and experimental applications of several APAD designs developed at Cornell University are discussed. The simplest design is a `flash' architecture, wherein successive integrated X-ray images, as short as several hundred nanoseconds in duration, are stored in the detector chips for later off-chip digitization. Radiography experiments using a prototype flash APAD are summarized. Another design has been implemented that combines flash capability with the ability to continuously stream X-ray images at slower (e.g. milliseconds) rates. Progress is described towards radiation-hardened APADs that can be tiled to cover a large area. A mixed-mode PAD, design by combining many of the attractive features of both APADs and DPADs, is also described. [source]


    Toxicity in Doberman Pinchers with Ventricular Arrhythmias Treated with Amiodarone (1996,2005)

    JOURNAL OF VETERINARY INTERNAL MEDICINE, Issue 1 2009
    M.S. Kraus
    Background: Asymptomatic Doberman Pinschers with dilated cardiomyopathy (DCM) often die suddenly owing to ventricular tachycardia that degenerates into ventricular fibrillation. A safe and effective antiarrhythmic drug treatment is needed. This will require a large, well-controlled, prospective study. Hypothesis: Amiodarone toxicity is common in Dobermans with occult DCM and ventricular tachyarrhythmias refractory to antiarrhythmia therapy. Infrequent monitoring of hepatic function is inadequate. Frequent monitoring may be useful to determine dogs in which the dosage should be decreased or the drug withdrawn. Methods: Medical records from the University of Georgia and Cornell University were searched for Doberman Pinschers diagnosed with preclinical DCM that received amiodarone for severe ventricular arrhythmias refractory to other antiarrhythmic agents. Echocardiographic data, Holter recording data, hepatic enzyme serum activity, and serum amiodarone concentrations were recorded. The presence of clinical signs of toxicity was recorded. Serum amiodarone concentrations were obtained in some dogs. Results: Reversible toxicity was identified in 10 of 22 (45%) dogs. Conclusion and Clinical Importance: Adverse effects from amiodarone were common and were, in part, dosage related. Patients should be monitored for signs of toxicity and liver enzyme activity should be measured at least monthly. [source]


    The Sources and Fortunes of Piranesi's Archaeological Illustrations

    ART HISTORY, Issue 4 2002
    Susan M. Dixon
    Susan M. Dixon earned her doctorate from Cornell University in 1991 with a dissertation on the archaeological publications of Giovanni Battista Piranesi. She studies the history of pre,scientific archaeology, from Pirro Ligorio to Piranesi, with a particular focus on illustration as a means to convey historical knowledge. She has published on this subject in a variety of venues, and is beginning a book,length manuscript on the subject. In 1995,96, she was awarded a J. Paul Getty post,doctoral fellowship to study the Accademia degli Arcadi, a society founded in 1690 primarily to restore good taste in literature, and its successes and failures in bringing about the reform of Italian society and architecture. She has written a book entitled The Bosco Parrasio: Performance and Perfectibility in the Garden of the Arcadians, which focuses on their garden meeting place as a breeding ground for a utopian society. Dr Dixon teaches art history at the University of Tulsa in Oklahoma. Giovanni Battista Piranesi (1720,1778) developed a way of representing the archaeological past by using the multi,informational image, an engraved illustration which appears to be a composite of various drawings, on various surfaces, and employing various modes of representation, scale and detail. The cartographic tradition, particularly maps from sixteenth,century Europe, offer a precedent for this type of illustration. Piranesi found theoretical underpinnings for it in contemporary discussions about the workings of the human memory, which was identified as a viable tool for those pursuing historical knowledge. His illustrations make visible the processes of memory on an assemblage of archaeological information, and they were a means to historical reconstruction. Archaeologists of the generation after Piranesi did not use the multi,informational image as the science of archaeology underwent a sea change at the end of the century. However, some compilers of travel literature, in particular Jean,Laurent,Pierre HoÃ,el, author and illustrator of Voyage pittoresque des isles de Sicile, de Malte, et de Lipari, found the format suitable to their purposes. Like Piranesi's, Hoüel's multi,informational images reveal the hand of the artist on the information he had diligently collected and ordered; Hoüel's picturesque illustrations of the southern Italian islands' people and places are self,consciously subjective. The format also makes apparent what was so appealing to many a voyager ,the apparent survival of the past in the culture of the present. [source]


    Space weather degrades GPS signals

    ASTRONOMY & GEOPHYSICS, Issue 3 2007
    Article first published online: 12 JUN 200
    A powerful solar flare on 6 December last year produced so much radio noise that GPS signals were significantly affected, according to researchers from Cornell University. This raises the question of how badly such systems would be affected at solar maximum. [source]


    2003 Nobel Prize in Physics for Theoretical Work on Superfluid 3He

    CHEMPHYSCHEM, Issue 7 2004
    Anthony J. Leggett Prof.
    Abstract The element helium comes in two (stable) forms,4He and3He; at low temperatures and pressures both form liquids rather than solids. The liquid phase of the common isotope,4He, was realized nearly a century ago, and since 1938 has been known to show, at temperatures below about 2 K, the property of superfluidity,the ability to flow through the narrowest capillaries without apparent friction. The light isotope,3He, is believed to be of quite a different nature; however,because of its similarity to the electrons in metals, which at low temperatures sometimes form "Cooper pairs" and thereby become superconducting, theorists in the 1960s and early 1970s had speculated that something similar might happen in liquid3He, which would then also show superfluidity though for reasons rather different than4He. In 1972 nuclear magnetic resonance (NMR) experiments at Cornell University revealed the existence, below 3 millidegrees, if two new phases, one of which displayed extraordinary NMR properties. Anthony Leggett is one of the theorists who succeeded in fitting the experimental properties into the "Cooper-pairing" scenario; in particular, he explained the NMR behavior and predicted further novel NMR phenomena which were subsequently found. [source]