Temporal and developmental risk factors for sexual harassment and abuse in sport

Recent revelations of sexual misconduct by sports coaches have challenged long-held beliefs in the educational value of sport, yet there is very little knowledge about the dynamics of sexual exploitation in sport upon which to base improvements in the practice of sports coaching or teaching. Earlier inductive research by Brackenridge (1996, 1997a, 1997b) in Britain established a set of hypothesised risk factors for sexual abuse in sport which have subsequently been reinforced by the results of survey research on elite athletes in Canada (Kirby and Greaves 1996). However, risk analysis for sexual abuse in sport has not yet been framed within a temporal or developmental sequence, nor sufficiently differentiated between elite and recreational levels of sport, or between coach-initiated and peer-initiated abuse. This paper reports selected findings from a Dutch qualitative study (Cense 1997) of 14 athletes who have survived sexual abuse in sport. The aim of the study was to identify risk factors that influence sexual abuse and harassment and to analyse which risks might be diminished through a prevention policy implemented by sport organisations. The Dutch study reinforces the earlier risk factor analyses but extends them by putting forward a preliminary temporal model of risk in sport that integrates offender behaviour with athlete and situational factors. On the basis of this model, suggestions are made to assist early diagnosis and prevention of sexual harassment and abuse by authority figures in sport

Dourges – Extension de la plate-forme multimodale Delta 3 (secteur 10)

Dans le cadre de l’extension de la plate-forme multimodale Delta 3 à Dourges et à l’issue d’un vaste diagnostic de 100 ha, plusieurs secteurs ont fait l’objet d’une prescription pour une fouille archéologique. L’opération menée par Archéopole sur le lot 2 s’est déroulée du 15 juillet au 18 septembre 2015 sur une surface approximative de 1,20 ha. Au nord et à l’est, l’occupation est encadrée par un réseau de plusieurs fossés tandis qu’un puissant parcellaire ferme l’installation au sud. Une di..

FPGA Implementation of a General Space Vector Approach on a 6-Leg Voltage Source Inverter

A general algorithm of a Space Vector approach is implemented on a 6-leg VSI controlling a PM synchronous machine with three independent phases. In this last case, the necessity of controlling the zero-sequence current motivates the choice of a special family of vectors, different of this one used in Pulse Width Modulation (PWM) intersective strategy and in common Space Vector PWM (SVPWM). To preserve the parallelism of the algorithm and fulfill the execution time constraints, the implementation is made on a Field Programmable Gate Array (FPGA). Comparisons with more classical 2-level and 3-level PWM are provided.Fui8 within the SOFRACI projec

Prediction of the impact sensitivity by neural networks

International audienceThe purpose of this work was the building of an efficient tool for the impact sensitivity prediction in order to minimize the risks during the handling of explosive compound

Retinal layer thicknesses retrieved with different segmentation algorithms from optical coherence tomography scans acquired under different signal-to-noise ratio conditions

Glaucomatous damage can be quantified by measuring the thickness of different retinal layers. However, poor image quality may hamper the accuracy of the layer thickness measurement. We determined the effect of poor image quality (low signal-to-noise ratio) on the different layer thicknesses and compared different segmentation algorithms regarding their robustness against this degrading effect. For this purpose, we performed OCT measurements in the macular area of healthy subjects and degraded the image quality by employing neutral density filters. We also analysed OCT scans from glaucoma patients with different disease severity. The algorithms used were: The Canon HS-100's built-in algorithm, DOCTRAP, IOWA, and FWHM, an approach we developed. We showed that the four algorithms used were all susceptible to noise at a varying degree, depending on the retinal layer assessed, and the results between different algorithms were not interchangeable. The algorithms also differed in their ability to differentiate between young healthy eyes and older glaucoma eyes and failed to accurately separate different glaucoma stages from each other. (c) 2020 Optical Society of America under the terms of the OSA Open Access Publishing Agreemen

Health System Innovation; kun je opereren op de maan?

De zorg verplaatst zich van gebouwen naar hybride netwerken waarin zowel fysiek als digitaal zorg wordt aangeboden. De zorg wordt daardoor complexer en lineair denken over de organisatie van zorg wordt steeds meer vervangen door denken in zogenaamde complexe adaptieve systemen. Naast de medische inhoud, is voor de patiëntervaring het logistieke proces van de behandeling belangrijk. De vragen voor onderzoek zijn dan ook: Hoe optimaliseer je de organisatie oftewel ‘de operatie’ van de zorg, en welke invloed hebben netwerkvorming en digitalisering van processen op kwaliteit van zorg en kwaliteit van leven? Binnen het ziekenhuis is verbetering mogelijk als zorgverleners geregeld met het hele team een stap terug doen om het zorgproces rondom een bepaald ‘zorgproduct’ opnieuw te ontwerpen. Binnen regionale netwerken zouden afspraken over verdeling van capaciteit goed zijn. Als vervolgens de capaciteit inzichtelijk wordt gemaakt op een platform waar de patiënt zelf een behandeling kan plannen, dan is dat winst voor patiënt, ziekenhuis en verzekeraar. De kwaliteit van zorg binnen zo’n netwerk kan gemeten worden door kwaliteitsregistraties. Vervolgens kan de kwaliteitsinformatie binnen een netwerk gebruikt worden voor leren en verbeteren. Het Integraal Zorgakkoord is ambitieus maar bij teleurstelling dreigt overregulering. Daarom een pleidooi voor het benoemen doelen in de vorm van Moonshots. Dokters betrek je bij de uitvoering met een nieuwe manier van werken gebaseerd op de succesfactoren voor een operatie: de Moonshot Operating Room. Er is volop expertise en ambitie aanwezig in Groningen, ideaal voor onderzoek op de genoemde gebieden.<br/

Co-registered combined OCT and THz imaging to extract depth and refractive index of a tissue-equivalent test object

Terahertz (THz) imaging and optical coherence tomography (OCT) provide complementary information with similar length scales. In addition to OCT’s extensive use in ophthalmology, both methods have shown some promise for other medical applications and non-destructive testing. In this paper, we present an iterative algorithm that combines the information from OCT and THz imaging at two different measurement locations within an object to determine both the depth of the reflecting layers at the two locations and the unknown refractive index of the medium for both the OCT wavelengths and THz frequencies. We validate this algorithm using a silicone test object with embedded layers and show that the depths and refractive index values obtained from the algorithm agreed with the measured values to within 3.3%. We further demonstrate for the first time that OCT and THz images can be co-registered and aligned using unsupervised image registration. Hence we show that a combined OCT/THz system can provide unique information beyond the capability of the separate modalities alone, with possible applications in the medical, industrial and pharmaceutical sectors

Polarization-sensitive spectral-domain optical coherence tomography using a single line scan camera

Polarization-sensitive optical coherence tomography can be used to measure the birefringence of biological tissue such as the human retina. Previous measurements with a time-domain polarization-sensitive optical coherence tomography system revealed that the birefringence of the human retinal nerve fiber layer is not constant, but varies as a function of location around the optic nerve head. Here we present a spectral-domain polarization-sensitive optical coherence tomography system that uses a spectrometer configuration with a single line scan camera and a Wollaston prism in the detection arm. Since only one camera has to be synchronized with other components in the system, the design is simplified considerably. This system is 60 times faster than a time-domain polarization-sensitive optical coherence tomography system. Data was acquired using concentric circular scans around the optic nerve head of a young healthy volunteer and the acquisition time for 12 circular scans was reduced from 72 s to 1.2 s. The acquired data sets demonstrate variations in retinal thickness and double pass phase retardation per unit depth that were similar to data from the same volunteer taken with a time-domain polarization-sensitive system. The double pass phase retardation per unit depth of the retinal nerve fiber layer varied between 0.18 and 0.40 degrees/μm, equivalent to a birefringence of 2.2 · 1