A canine gait analysis protocol for back movement assessment in german shepherd dogs

Objective-To design and test a motion analysis protocol for the gait analysis of adult German Shepherd (GS) dogs with a focus in the analyses of their back movements. Animals-Eight clinically healthy adult large-sized GS dogs (age, 4 ± 1.3 years; weight, 38.8 ± 4.2 kg). Procedures-A six-camera stereo-photogrammetric system and two force platforms were used for data acquisition. Experimental acquisition sessions consisted of static and gait trials. During gait trials, each dog walked along a 6 m long walkway at self-selected speed and a total of six gait cycles were recorded. Results-Grand mean and standard deviation of ground reaction forces of fore and hind limbs are reported. Spatial-temporal parameters averaged over gait cycles and subjects, their mean, standard deviation and coefficient of variance are analyzed. Joint kinematics for the hip, stifle and tarsal joints and their average range of motion (ROM) values, and their 95% Confidence Interval (CI) values of kinematics curves are reported. Conclusions and Clinical Relevance-This study provides normative data of healthy GS dogs to form a preliminary basis in the analysis of the spatial-temporal parameters, kinematics and kinetics during quadrupedal stance posture and gait. Also, a new back movement protocol enabling a multi-segment back model is provided. Results show that the proposed gait analysis protocol may become a useful and objective tool for the evaluation of canine treatment with special focus on the back movement

Epidemiological surveillance of lumbar disc surgery in the general population: a pilot study in a French region.

OBJECTIVES: Disc-related sciatica (DRS) is a significant and costly health problem in the working population. The aim of this pilot study was to assess the feasibility of a surveillance system for DRS using hospital databases for lumbar disc surgery (LDS). METHODS: A total of 272 inpatients (119 men and 153 women) living in a French region and discharged in 2002-2003 from a spine center of a large University Hospital following LDS were compared with demographic and socioeconomic data on the population of the same region. Medical and occupational histories were gathered using a mailed questionnaire. The age-adjusted relative risks and population attributable fraction of risk (PAF) were calculated in relation to occupations and industries. RESULTS: Information on employment was available for the 75 women and 71 men. The risk of LDS varied according to occupations and industries. PAFs ranged between 30% (12-48) for male blue collar workers and 22% (4-40) for female lower white collar workers. PAFs ranged between 7 and 17% in the economic sectors at high risk. CONCLUSION: The surveillance of LDS can identify occupations and industries at risk

Population attributable risk of lumbar disc surgery according to occupation: a study in a French general population

Aims: Disc-related sciatica represents one of the most significant and costly health problems occurring in the working population. The aim of this study was to assess the work-related population attributable fraction (PAF) of lumbar disc surgery (LDS) for disc-related sciatica in occupational categories at high risk in the general population. Methods: Patients living in a French region in 2003 and discharged from a large University Hospital following LDS were compared with demographic and socioeconomic data from the population census. Medical and occupational histories from 75 women and 71 men were gathered using a mailed questionnaire. The ageadjusted relative risks and PAF of CTS were calculated according to occupational categories. Results: The PAFs of lumbar disc surgery was 37% [19-54] for the male blue-collar workers suggesting that about 37% of the cases occurring in this category of workers could be avoided if the excess risk of LDS could be eliminated. The PAF value for male and female lower-grade white collar workers and female intermediate occupations were 18%, 33% and 13%, respectively. Conclusion: The study suggested that 13–37% of LDS for disc-related sciatica might be avoided in the whole population if totally effective intervention programs were implemented in specific occupational categories or industries. However, these preliminary findings must be confirmed by a larger study conducted in the whole region to assess more accurately the proportion of avoidable cases of LDS in the population

A Provenance-Based Infrastructure to Support the Life Cycle of Executable Papers

AbstractAs publishers establish a greater online presence as well as infrastructure to support the distribution of more varied information, the idea of an executable paper that enables greater interaction has developed. An executable paper provides more information for computational experiments and results than the text, tables, and figures of standard papers. Executable papers can bundle computational content that allow readers and reviewers to interact, validate, and explore experiments. By including such content, authors facilitate future discoveries by lowering the barrier to reproducing and extending results. We present an infrastructure for creating, disseminating, and maintaining executable papers. Our approach is rooted in provenance, the documentation of exactly how data, experiments, and results were generated. We seek to improve the experience for everyone involved in the life cycle of an executable paper. The automated capture of provenance information allows authors to easily integrate and update results into papers as they write, and also helps reviewers better evaluate approaches by enabling them to explore experimental results by varying parameters or data. With a provenance-based system, readers are able to examine exactly how a result was developed to better understand and extend published findings

The ALPS project release 2.0: Open source software for strongly correlated systems

We present release 2.0 of the ALPS (Algorithms and Libraries for Physics Simulations) project, an open source software project to develop libraries and application programs for the simulation of strongly correlated quantum lattice models such as quantum magnets, lattice bosons, and strongly correlated fermion systems. The code development is centered on common XML and HDF5 data formats, libraries to simplify and speed up code development, common evaluation and plotting tools, and simulation programs. The programs enable non-experts to start carrying out serial or parallel numerical simulations by providing basic implementations of the important algorithms for quantum lattice models: classical and quantum Monte Carlo (QMC) using non-local updates, extended ensemble simulations, exact and full diagonalization (ED), the density matrix renormalization group (DMRG) both in a static version and a dynamic time-evolving block decimation (TEBD) code, and quantum Monte Carlo solvers for dynamical mean field theory (DMFT). The ALPS libraries provide a powerful framework for programers to develop their own applications, which, for instance, greatly simplify the steps of porting a serial code onto a parallel, distributed memory machine. Major changes in release 2.0 include the use of HDF5 for binary data, evaluation tools in Python, support for the Windows operating system, the use of CMake as build system and binary installation packages for Mac OS X and Windows, and integration with the VisTrails workflow provenance tool. The software is available from our web server at http://alps.comp-phys.org/.Comment: 18 pages + 4 appendices, 7 figures, 12 code examples, 2 table

Metallic, magnetic and molecular nanocontacts

Scanning tunnelling microscopy and break-junction experiments realize metallic and molecular nanocontacts that act as ideal one-dimensional channels between macroscopic electrodes. Emergent nanoscale phenomena typical of these systems encompass structural, mechanical, electronic, transport, and magnetic properties. This Review focuses on the theoretical explanation of some of these properties obtained with the help of first-principles methods. By tracing parallel theoretical and experimental developments from the discovery of nanowire formation and conductance quantization in gold nanowires to recent observations of emergent magnetism and Kondo correlations, we exemplify the main concepts and ingredients needed to bring together ab initio calculations and physical observations. It can be anticipated that diode, sensor, spin-valve and spin-filter functionalities relevant for spintronics and molecular electronics applications will benefit from the physical understanding thus obtained

High mass photon pairs in lepton+ lepton-gamma gamma events at LEP

High mass photon pairs in lepton+ lepton-gamma gamma events at LEP Adriani, O.; Aguilar-Benitez, M.; Ahlen, S.P.; Alcaraz, J.; Aloisio, A.; Alverson, G.; Alviggi, M.G.; Ambrosi, G.; Linde, F.L. Published in: Physics Letters B DOI: 10.1016/0370-2693(92)91576-U Link to publication Citation for published version (APA): Adriani, O., Aguilar-Benitez, M., Ahlen, S. P., Alcaraz, J., Aloisio, A., Alverson, G., ... Linde, F. L. (1992). High mass photon pairs in lepton+ lepton-gamma gamma events at LEP. Physics Letters B, 295,[337][338][339][340][341][342][343][344][345][346] https://doi.org/10.1016/0370-2693(92)91576-U General rights It is not permitted to download or to forward/distribute the text or part of it without the consent of the author(s) and/or copyright holder(s), other than for strictly personal, individual use, unless the work is under an open content license (like Creative Commons). Disclaimer/Complaints regulations If you believe that digital publication of certain material infringes any of your rights or (privacy) interests, please let the Library know, stating your reasons. In case of a legitimate complaint, the Library will make the material inaccessible and/or remove it from the website. Please Ask the Library: https://uba.uva.nl/en/contact, or a letter to: Library of the University of Amsterdam, Secretariat, Singel 425, 1012 WP Amsterdam, The Netherlands. You will be contacted as soon as possible. Download date: 28 Jun 2019 Physics Letters B 295 (1992) From the analysis of the reactions e + e-~ g + g-(n?) (g = e, #, ~) we observe four events, one e+e -~'7 and three #+ ~-??, with the invariant mass of the photon pairs close to 60 GeV. These events were selected from a data sample collected in the L3 detector corresponding to 950000 produced Z°'s. More data are necessary to ascertain the origin of these events

Multimodal biometric verification and identification using face and hand

Biometric identifiers \u2013 physiological or behavioral characteristics of a human \u2013 are more trustworthy and more suitable than knowledge-based and token-based techniques in distinguishing between a confirmed person and an impostor [1]. In this study, face and hand geometry have been chosen as biometric identifiers that identify and verify users in unimodal and multimodal cases. Face recognition and verification modalities of this study are built upon 2D Gabor wavelets where Gabor kernels having eight different orientations and five different frequencies have been convolved with the images of the users [2]. Hand recognition and verification modalities use ICA-based features [3]. Segmentation, hand registration and finger registration are the significant phases of this study that pre-process the hand image before the extraction and recognition steps. The fusion performance of the system has been analyzed by using the methods of Borda Count, Fixed Arithmetic Combination and Confidence-aided Fusion