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Now showing items 81 - 96 of 3322

  • C. F. Martin & His Guitars, 1796-1873by Philip F. Gura

    Review by: Gary R. Boye  

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  • Surveying Natural Populations.by Lee-Ann C. Hayek; Martin A. Buzas

    Review by: Peter S. Petraitis  

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  • fMRI visualization of transient activations in the rat olfactory bulb using short odor stimulations

    C. Martin   D. Grenier   M. Thévenet   M. Vigouroux   B. Bertrand   M. Janier   N. Ravel   P. Litaudon  

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  • MAPS OF TEXAS AND THE SOUTHWEST, 1513-1900by James C. Martin; Robert S. Martin

    Review by: David Hornbeck and Donald Hornbeck  

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  • Alkaline-Metal Doped MoO3/TiO2Systems: Structure of Supported Molybdates

    C. Martin   I. Martin   V. Rives   P. Malet  

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  • The Epidemiology of Neurological Disordersby C. N. Martin; R. A. C. Hughes

    Review by: Jesus De Pedro Cuesta  

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  • High temperature deformation of SiC reinforced 5083 aluminium matrix composites

    C. Martin   L. Salvo   J.J. Blandin  

    High temperature deformation of Al 5083-SiC composites has been studied. Both rheological characterization and TEM observations are in agreement with the concepts of "constant and variable substructures", initially proposed by Mishra and co-workers. However, the experimental transition between these two regimes is not as sharp as predicted by the model. A gradual transition is obtained which indicates that both mechanisms may occur simultaneously, as a result of the distribution in interparticle distances throughout the composite
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  • Impact of long chain fatty acids on sweet taste sensitivity in mice. Role of the GPR120/GLP-1 signaling

    C. Martin   P. Passilly-Degrace   S.M. Sparks   D.J. Drucker   P. Besnard  

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  • Modelling of group-III nitride MOVPE in the closed coupled showerhead reactor and Planetary Reactor?

    C. Martin   M. Dauelsberg   H. Protzmann   A.R. Boyd   E.J. Thrush   M. Heuken   R.A. Talalaev   E.V. Yakovlev   A.V. Kondratyev  

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  • Issues in conducting cost of illness studies for schizophrenia

    C. Martin   L. Genduso  

    The purposes of a cost of illness (COI) study for schizophrenia (S), an evaluation of direct and indirect costs in a specified population, are many fold: increase awareness regarding the costs of S to a society or government, determine policies for better mental health programs, and provide a baseline to measure clinical practice as well as the cost-effectiveness of certain interventions. Prevalence estimates (assessment of the total cost for a given year) are better suited for cost control measures and as a budget planning tool for the next years. Incidence studies (assessement of the lifetime costs for a given cohort) are more useful for overall program evaluation, and as a baseline for new treatment interventions. Planning a COI study involves several steps before data collection begins: i) determine if the study will be retrospective or prospective, ii) define criteria for inclusions (ICD codes or DSM IV classification), iii) obtain an appropriate sampling matched to the demographics of the overall schizophrenic population for relevant variables (eg age, socio-economic status, severity of illness, type of institution), iiii) state the perspective of the study (eg societal perspective, government perspective), iiiii) define sample size. Reporting of resources used, costs per service utilization item and average costs per patient lead to greater transparency. Sensitivity analysis should be done on key variables (eg prices, patient mix, type of treatments). If the sample is representative and of sufficient size, the results can be extrapolated, with caution, to the population. COI studies have been conducted in Australia, UK and the US and we are aware of ongoing studies in Belgium, France, Germany and Spain. Comparing COI studies over time, even with adjustments for inflation, is difficult because of various changes including an improvement in cost measurement techniques, a narrowing of the definition of S and a shift from hospital care to community care that has impacted costs. COI studies can assist in the needs to serve the patient while being mindful of the government, private insurer, and patient payments. As more and more studies are conducted, research techniques are improving and becoming more rigorous.
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  • Audit sur 39 centres hospitaliers des pratiques d\"antibioprophylaxie en chirurgie

    C. Martin   A. Gayte-Sorbier   M.C. Saux  

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  • Multi-modal sensor fusion using a probabilistic aggregation scheme for people detection and tracking

    C. Martin   E. Schaffernicht   A. Scheidig and H.-M. Gross  

    Efficient and robust techniques for people detection and tracking are basic prerequisites when dealing with Human–Robot Interaction (HRI) in real-world scenarios. In this paper, we introduce a new approach for the integration of several sensor modalities and present a multi-modal, probability-based people detection and tracking system and its application using the different sensory systems of our mobile interaction robot Horos. These include a laser range-finder, a sonar system, and a fisheye-based omni-directional camera. For each of these sensory systems, separate and specific Gaussian probability distributions are generated to model the belief in observing one or several persons. These probability distributions are further merged into a robot-centered map by means of a flexible probabilistic aggregation scheme based on Covariance Intersection (CI). The main advantages of this approach are the simple extensibility by the integration of further sensory channels, even with different update frequencies, and the usability in real-world HRI tasks. Finally, the first promising experimental results achieved for people detection and tracking in a real-world environment (our institute building) are presented.
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  • Multi-modal sensor fusion using a probabilistic aggregation scheme for people detection and tracking

    C. Martin   E. Schaffernicht   A. Scheidig   H.-M. Gross  

    Efficient and robust techniques for people detection and tracking are basic prerequisites when dealing with Human-Robot Interaction (HRI) in real-world scenarios. In this paper, we introduce a new approach for the integration of several sensor modalities and present a multi-modal, probability-based people detection and tracking system and its application using the different sensory systems of our mobile interaction robot Horos. These include a laser range-finder, a sonar system, and a fisheye-based omni-directional camera. For each of these sensory systems, separate and specific Gaussian probability distributions are generated to model the belief in observing one or several persons. These probability distributions are further merged into a robot-centered map by means of a flexible probabilistic aggregation scheme based on Covariance Intersection (CI). The main advantages of this approach are the simple extensibility by the integration of further sensory channels, even with different update frequencies, and the usability in real-world HRI tasks. Finally, the first promising experimental results achieved for people detection and tracking in a real-world environment (our institute building) are presented. [All rights reserved Elsevier]
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  • ABERRATING MEDIUM CHARACTERIZATION AND IMAGE RECONSTRUCTION WITH AQUADRATURE-PHASE INTERFEROMETER

    P.E. Dimotakis   D.B. Lang   C. Martin  

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  • Recommandations pour la pratique de l’antibioprophylaxie en chirurgie: Actualisation 1999

    C. Martin  

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  • Quality of perioperative antibiotic administration by French anaesthetists

    C. Martin   J.L Pourriat  

    Antibiotics are the most prescribed drugs in hospitals in France and approximately one-third of prescriptions are for antimicrobial prophylaxis. Although the principles of prophylaxis have been defined over the years, there is still widespread misuse of antimicrobials for that purpose. The aim of this survey was to determine whether prescription of prophylactic antibiotics by French anesthetists complies with the French Guidelines on Surgical Antibiotic Prophylaxis. Information was sought concerning the agent(s) recommended, the timing of the first dose and the duration of prescription. A total of 1473 French anesthetists was studied. For the great majority (93%), the first antibiotic dose is administered at time of induction of anaesthesia, as recommended by the guidelines. First- and second-generation cephalosporins are frequently selected, as well as co-amoxiclav. In contrast to the guidelines, third-generation cephalosporins (3GCs) are widely prescribed in digestive and urological surgery and quinolones in urological surgery. Duration of prescription is limited to 48 h by most anesthetists (94%), however there is a strong tendency to prescribe prophylaxis for longer periods in the immunocompromised and patients undergoing major surgery. This survey indicates discrepancies between the French Guidelines on Surgical Antibiotic Prophylaxis and the current practice of French anesthetists. Major concerns are the use of antibiotics such as 3GCs or fluoroquinolones and prescription for periods exceeding 48 h. In conclusion, compliance with guidelines for prophylactic antimicrobial administration should be more strict in surgical patients.
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