This paper describes the design of a neck-/headrest to increase car comfort. Two studies were undertaken to create a new comfortable headrest with neck support. In experiment one, neck- and headrest data were gathered using 35 test subjects. The pressure distribution, stiffness of the foam material and position of the head and neck support were determined. In experiment two a full adjustable final headrest with adjustable neck support was constructed and tested with 12 subjects using a new adjustable headrest under virtual reality driving conditions. Experiment two showed that the headrest with the new/adjustable neck support was favoured by the majority of the subjects. 83% were satisfied with the stiffness of the material. 92% were satisfied with the size of the neck- and headrest. All subjects mentioned that the neck support is a comfort benefit in calm traffic conditions or on the motorway.
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http://dx.doi.org/10.1016/j.apergo.2011.06.009 | DOI Listing |
Radiat Oncol
January 2025
German Cancer Consortium (DKTK), partner site Tübingen, and German Cancer Research Center (DKFZ), Heidelberg, Germany.
Background: For radiotherapy of head and neck cancer (HNC) magnetic resonance imaging (MRI) plays a pivotal role due to its high soft tissue contrast. Moreover, it offers the potential to acquire functional information through diffusion weighted imaging (DWI) with the potential to personalize treatment. The aim of this study was to acquire repetitive DWI during the course of online adaptive radiotherapy on an 1.
View Article and Find Full Text PDFInjury
January 2025
Department of Trauma Surgery, University Medical Center Regensburg, Regensburg, Germany; Department of Trauma, Hand- and Reconstructive Surgery, University Hospital Giessen, Giessen, Germany. Electronic address:
Purpose: Standard operating procedures aim to achieve a standardized and assumedly high-quality therapy. However, in orthopaedic surgery, the aspect of temporal urgency is often based on surgical tradition and experience. At a time of evidence-based medicine, it is necessary to question these temporal guidelines.
View Article and Find Full Text PDFPoult Sci
January 2025
Animal Breeding and Genomics Centre, Wageningen University, 6709PG Wageningen, the Netherlands.
Feather pecking, related feather damage, and mortality are crucial welfare and efficiency traits in laying hens. When individuals are kept in sib groups, genetic analysis of feather scores captures the performer and receiver components of feather damage due to pecking. Genetic parameters and breeding values estimated from such data with an ordinary linear mixed model refer to total breeding values.
View Article and Find Full Text PDFBiomed Phys Eng Express
January 2025
Radiation Oncology, Emory University, Emory Midtown Hospital, Atlanta, Georgia, 30322, UNITED STATES.
Although radiotherapy techniques are the primary treatment for head and neck cancer (HNC), they are still associated with substantial toxicity, and side effect. Machine learning (ML) based radiomics models for predicting toxicity mostly rely on features extracted from pre-treatment imaging data. This study aims to compare different models in predicting radiation-induced xerostomia and sticky saliva in both early and late stage of HNC patients using CT and MRI image features along with demographics and dosimetric information.
View Article and Find Full Text PDFOtol Neurotol
January 2025
Department of Otorhinolaryngology, Head and Neck Surgery, Inselspital, University Hospital Bern and University of Bern, Bern, Switzerland.
Objective: We aimed to investigate the effect of adding "rapid decelerations" and "vibrations" during a SemontPLUS maneuver on the dynamics of the inner ear and the success rate of canalolithiasis repositioning.
Methods: We used a previously described upscaled (5×) in vitro model of the posterior semicircular canal of the inner ear to analyze the trajectory of a single and clumped surrogate otolith particle (metallic sphere) during a SemontPLUS maneuver (-60 degrees below earth horizontal) on a repositioning chair (TRV). We compared the angular displacement of these particles with and without the application of "vibrations" or "rapid decelerations" using TRV.
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