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Arnhem, Netherlands

The HAN University of Applied science , often abbreviated as HAN, is a vocational university of applied science with campuses in Arnhem and Nijmegen in the Netherlands. It offers Bachelor and Master degrees in a wide range of subjects. Arnhem Business School is the international department of HAN University. Wikipedia.

Tijssen M.,Sport Medisch Centrum Papendal | Van Cingel R.,Sport Medisch Centrum Papendal | Van Cingel R.,HAN University of Applied Sciences | Willemsen L.,Sport Medisch Centrum Papendal | De Visser E.,Rijnstate Hospital
Arthroscopy - Journal of Arthroscopic and Related Surgery

Purpose: Femoroacetabular impingement (FAI) and labral pathology have been recognized as causative factors for hip pain. The clinical diagnosis is now based on MRI-A (magnetic resonance imaging-arthrogram) because the physical diagnostic tests available are diverse and information on diagnostic accuracy and validity is lacking. The purpose of this systematic review was to identify the diagnostic accuracy and validity of physical tests that are used to assess FAI and labral pathology of the hip joint. Methods: We performed a computerized literature search using PubMed, Medline, Web of Science, PEDro, the Cochrane Library, and CINAHL (Cumulative Index to Nursing and Allied Health Literature) (through EBSCO). Studies describing tests and diagnostic accuracy studies were included. All included studies were assessed by the Levels of Evidence for Primary Research Questions list. All diagnostic accuracy studies were assessed by the QUADAS (Quality Assessment of Diagnostic Accuracy Studies) score. Results: We included 21 studies in which 18 different tests were described. For 11 of these tests, diagnostic accuracy figures were presented. Sensitivity was examined for all tests. Other diagnostic accuracy figures were often lacking, and when available, these were low. All articles describing tests had Level IV or V evidence. All diagnostic accuracy studies, except 1, had Level II or III evidence. Three articles had a good QUADAS score. Conclusions: In previous studies a wide range of physical diagnostic tests have been described. Little is known about the diagnostic accuracy and validity of these tests, and if available, these figures were low. The quality of the studies investigating these tests is too low to provide a conclusive recommendation for the clinician. Thus, currently, no physical tests are available that can reliably confirm or discard the diagnoses of FAI and/or labral pathology of the hip in clinical practice. Level of Evidence: Level III, systematic review of Level III studies. © 2012 Arthroscopy Association of North America. Source

Basten T.G.H.,TNO | De Bree H.-E.,HAN University of Applied Sciences
Journal of the Acoustical Society of America

Calibration of acoustic particle velocity sensors is still difficult due to the lack of standardized sensors to compare with. Recently it is shown by Jacobsen and Jaud [J. Acoust. Soc. Am. 120, 830-837 (2006)] that it is possible to calibrate a sound pressure and particle velocity sensor in free field conditions at higher frequencies. This is done by using the known acoustic impedance at a certain distance of a spherical loudspeaker. When the sound pressure is measured with a calibrated reference microphone, the particle velocity can be calculated from the known impedance and the measured pressure. At lower frequencies, this approach gives unreliable results. The method is now extended to lower frequencies by measuring the acoustic pressure inside the spherical source. At lower frequencies, the sound pressure inside the sphere is proportional to the movement of the loudspeaker membrane. If the movement is known, the particle velocity in front of the loudspeaker can be derived. This low frequency approach is combined with the high frequency approach giving a full bandwidth calibration procedure which can be used in free field conditions using a single calibration setup. The calibration results are compared with results obtained with a standing wave tube. © 2010 Acoustical Society of America. Source

Pauwelussen J.,HAN University of Applied Sciences
Vehicle System Dynamics

Path tracking driver models assume the observed path deviation ahead of the vehicle to be proportionally transferred to a corrective steering input. The most simple version of such a model includes three parameters, a single preview distance, a steering gain and a delay time, being examined in this paper, in dependency of vehicle properties, driver characteristics, velocity and path. It is shown that, for different and bounded preview lengths, a driver can follow any path with almost the same minimum path error, if the gain is adapted appropriately. The upper boundary is path-dependent but driver and path characteristics have only a minor effect on the resulting relationship between preview length and gain. Consequently, gain and preview length may well vary along some path. This has been examined, experimentally, for different drivers. A too small preview length conflicts with closed-loop stability, explicitly described in terms of vehicle parameters, vehicle speed and driver delay time. The results of this paper provide a basis for enhanced understanding of human driver behaviour. © 2012 Copyright Taylor and Francis Group, LLC. Source

Voerman J.S.,HAN University of Applied Sciences
Clinical Journal of Pain

OBJECTIVES:: The purpose of the present study was to determine whether pain is associated with specific aspects of academic performance, i.e. poorer grades, and with factors critical to an adolescent’s academic performance, i.e. decreased emotional well-being and attention problems. We hypothesized that the association between pain and school grades is mediated by emotional well-being and attention problems. METHODS:: In a large cross-sectional study, we collected data from 2215 pupils, aged 12-13 years old. Pain (no, occasional, and frequent), emotional well-being, and attention problems were measured with self-rating scales. Dutch, English, and math grades were taken as an index of academic performance. RESULTS:: Frequent pain in adolescents was associated with poorer grades (Dutch P=0.02 and math P=0.01). Both occasional and frequent pain were associated with reduced emotional well-being (P=<0.001) and reduced self-reported attention (P=<0.001). However, the association between pain and lower grades disappeared when controlling for emotional well-being and attention. DISCUSSION:: The present study shows that the association between pain and Dutch grades is mediated by reduced emotional well-being and attention problems. The association between pain and math grades is mediated by emotional problems. The results suggest that an intervention targeted at pain in adolescents could have a positive effect on emotional well-being, attention, and school performance. Copyright © 2016 Wolters Kluwer Health, Inc. All rights reserved. Source

Kim R.,HAN University of Applied Sciences
International Food Research Journal

This paper assesses current conditions of Chinese food safety management system and how policy makers responded to recent incidents of food scares which occurred in China. The paper identifies three aspects of Chinese food safety system which may need to be improved to enhance the system and addresses policy implications for Chinese food safety system. First, administrative structure of Chinese food safety system may need to be consolidated for enhancing efficiency. Second, Chinese consumers' attitude toward food safety system in China was found to be determining factor for future success of sustainable food supply chain in China, and this should be extensively monitored and evaluated to improve risk communication of food in China. Third, international cooperation among major trading partners regarding development of global food supply chain is found to be imminent, as globalization and increased international trade leads to integration of food safety issues of each country. Development of compatible food safety standards and measures is necessary to have coordinated management of food products which are traded across border. © 2008 IFRJ, Faculty of Food Science & Technology, UPM. Source

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