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https://www.readbyqxmd.com/read/27758141/first-episode-of-acute-low-back-pain-an-exploratory-cluster-analysis-approach-for-early-detection-of-unfavorable-recovery
#1
Brigitte Wirth, Marco Ehrler, Barry Kim Humphreys
PURPOSE: To identify recovery patterns in patients with a first episode of acute low back pain (LBP) and to define risk factors for unfavorable outcome. METHODS: One hundred and eight patients (55 male, 53 female; mean age = 40.8, SD 14.2 years) rated pain (NRS) and disability [Oswestry Disability Index (ODI)] before the first treatment and 1 week, 1, 3, 6, and 12 months later. Hierarchical cluster analysis identified recovery patterns based on NRS data. Clusters were compared for age, NRS and ODI at baseline, pain reduction in the first week, gender, radicular signs and traumatic onset using one-way ANOVA (post hoc Bonferroni) and χ(2) tests...
October 19, 2016: Disability and Rehabilitation
https://www.readbyqxmd.com/read/27713114/influence-of-pedometer-position-on-pedometer-accuracy-at-various-walking-speeds-a-comparative-study
#2
Frederic Ehrler, Chloé Weber, Christian Lovis
BACKGROUND: Demographic growth in conjunction with the rise of chronic diseases is increasing the pressure on health care systems in most OECD countries. Physical activity is known to be an essential factor in improving or maintaining good health. Walking is especially recommended, as it is an activity that can easily be performed by most people without constraints. Pedometers have been extensively used as an incentive to motivate people to become more active. However, a recognized problem with these devices is their diminishing accuracy associated with decreased walking speed...
October 6, 2016: Journal of Medical Internet Research
https://www.readbyqxmd.com/read/27676838/assessment-of-therapeutic-education-in-135-lower-limb-amputees
#3
Chloé Blum, Solange Ehrler, Marie-Eve Isner
OBJECTIVE: Therapeutic patient education (TPE) is a continuous process for chronic disease. TPE enables patients to improve and acquire the skills that are necessary for self-care and self-management. We wanted to determine the place of self-care in patients following lower limb amputation by evaluating prosthetic and limb management and prosthesis use. MATERIAL/PATIENTS AND METHODS: To this aim, we involved 135 trans-tibial amputees between May 2011 and December 2013 who were fitted with contact silicone socket prosthesis with distal lock...
September 2016: Annals of Physical and Rehabilitation Medicine
https://www.readbyqxmd.com/read/27577371/addressing-the-complexity-of-mobile-app-design-in-hospital-setting-with-a-tailored-software-development-life-cycle-model
#4
Frederic Ehrler, Christian Lovis, Katherine Blondon
Recent studies on workflow processes in hospital settings have shown that, since the introduction of EHRs, care-providers spend an increasing amount of their time on documentation rather than on bedside patient care. In order to improve the bedside work process and facilitate bedside documentation, we are developing an evidence-based mobile app for healthcare providers. In this paper, we present a tailored software development life cycle model that we created and validated during the design and development of this smartphone application...
2016: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/27332296/improving-drugs-administration-safety-in-pediatric-resuscitation-using-mobile-technology
#5
Hamdi Hagberg, Johan Siebert, Alain Gervaix, Peter Daehne, Christian Lovis, Sergio Manzano, Frederic Ehrler
The fast preparation of drugs during pediatric resuscitation is of utmost importance. The influence of the patient's weight on the drug doses requires to perform complex calculations and is a source of errors. A technological solution could be a real help in avoiding these kinds of mistakes. Relying on a user centered approach we have developed an application supporting drug preparation. It has been tested in simulations with predefined scenario. The developed tool consists of a screen displaying a list of drug that can be administered...
2016: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/27332295/individual-nomad-clinical-assistant-supporting-nurses-at-the-point-of-care
#6
Yvann Argentin, Florent Gluck, Christian Lovis, Frederic Ehrler
Accessing patients' data at the point of care has the potential to ease the workflow of nurses and to improve the documentation. We have launched an initiative to develop a mobile assistant focused on managing nurses' daily intervention. The design has required the involvement of many stakeholder and has followed a user centered design process. The evaluation is planned in two stages with an increasing level of ecology. The solution is a client server application displaying a contextualized view on nurses' interventions...
2016: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/27332258/improving-patients-experience-in-peadiatric-emergency-waiting-room
#7
Frederic Ehrler, Johan Siebert, Rolf Wipfli, Cyrille Duret, Alain Gervaix, Christian Lovis
When visiting the emergency department, the perception of the time spent in the waiting room before the beginning of the care, may influence patients' experience. Based on models of service evaluation, highlighting the importance of informing people about their waiting process and their place in the queue, we have developed an innovative information screen aiming at improving perception of time by patients. Following an iterative process, a group of experts including computer scientists, ergonomists and caregivers designed a solution adapted to the pediatric context...
2016: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/27255612/how-regrouping-alerts-in-computerized-physician-order-entry-layout-influences-physicians-prescription-behavior-results-of-a-crossover-randomized-trial
#8
Rolf Wipfli, Frederic Ehrler, Georges Bediang, Mireille Bétrancourt, Christian Lovis
BACKGROUND: As demonstrated in several publications, low positive predictive value alerts in computerized physician order entry (CPOE) induce fatigue and may interrupt physicians unnecessarily during prescription of medication. Although it is difficult to increase the consideration of medical alerts by physician through an improvement of their predictive value, another approach consists to act on the way they are presented. The interruption management model inspired us to propose an alternative alert display strategy of regrouping the alerts in the screen layout, as a possible solution for reducing the interruption in physicians' workflow...
2016: JMIR Human Factors
https://www.readbyqxmd.com/read/27225569/adapting-guidelines-for-google-glass-the-case-of-pediatric-cpr
#9
Frederic Ehrler, Johan Siebert, Kevin Haddad, Ayhan Sahin, Philippe Schrurs, Raphael Diener, Alain Gervaix, Sergio Manzano, Christian Lovis
Early recognition and management of patients at risk and more aggressive implementation of evidence-based resuscitation guidelines play a role to the reduction of patients' mortality. If, in paediatric emergency department, the proper adherence to the paediatric cardiac arrest guidelines is critical to increase the chance of survival, this adherence is unfortunately often suboptimal. Connected glasses, such as the Google Glass, offer an interesting support to provide guidelines at the point of care. However, existing guidelines format is not adapted to be used directly on the small screen of connected glasses...
2016: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/27120686/size-and-energy-level-tuning-of-quantum-dot-solids-via-a-hybrid-ligand-complex
#10
Marcus L Böhm, Tom C Jellicoe, Jasmine P H Rivett, Aditya Sadhanala, Nathaniel J L K Davis, Frederik S F Morgenstern, Karl C Gödel, Jayamurugan Govindasamy, Callum G M Benson, Neil C Greenham, Bruno Ehrler
The performance of quantum dots (QDs) in optoelectronic devices suffers as a result of sub-bandgap states induced by the large fraction of atoms on the surface of QDs. Recent progress in passivating these surface states with thiol ligands and halide ions has led to competitive efficiencies. Here, we apply a hybrid ligand mixture to passivate PbSe QD sub-bandgap tail states via a low-temperature, solid-state ligand exchange. We show that this ligand mixture allows tuning of the energy levels and the physical QD size in the solid state during film formation...
September 3, 2015: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/27081076/photovoltaic-materials-present-efficiencies-and-future-challenges
#11
REVIEW
Albert Polman, Mark Knight, Erik C Garnett, Bruno Ehrler, Wim C Sinke
Recent developments in photovoltaic materials have led to continual improvements in their efficiency. We review the electrical characteristics of 16 widely studied geometries of photovoltaic materials with efficiencies of 10 to 29%. Comparison of these characteristics to the fundamental limits based on the Shockley-Queisser detailed-balance model provides a basis for identifying the key limiting factors, related to efficient light management and charge carrier collection, for these materials. Prospects for practical application and large-area fabrication are discussed for each material...
April 15, 2016: Science
https://www.readbyqxmd.com/read/27071909/front-matter
#12
(no author information available yet)
This volume contains the proceedings of the Special Topic Conference (STC) of the European Federation for Medical Informatics (EFMI). The organisation of the STC is part of a long tradition of EFMI working groups to organise scientific events focused on important trends in medical informatics and eHealth. In 2016, the special topic is "Transforming Healthcare with the Internet of Things" in relation to the EFMI working group Personal Portable Devices (PPD). STC 2016 takes place in Paris, France, organised by the Laboratoire d'Informatique Médicale et d'Ingénierie des Connaissances en e-Santé (LIMICS) under the auspices of EFMI and the French Association for Medical Informatics (AIM)...
2016: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/27071868/positioning-commercial-pedometers-to-measure-activity-of-older-adults-with-slow-gait-at-the-wrist-or-at-the-waist
#13
Frederic Ehrler, Chloe Weber, Christian Lovis
Sedentary behaviour is a major risk factor for chronic disease morbidity and mortality in aging. Measuring people activity through devices such as pedometers is a recognized intervention to motivate them for more physical activity. However, the feedback provided by these devices must be accurate in order to avoid overtraining and keep users' motivation alive. If the accuracy of pedometers has been validated for healthy people, their lack of accuracy for elderly people walking at slower pace has been reported in several studies...
2016: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/27034106/symptomatic-mri-confirmed-lumbar-disc-herniations-a-comparison-of-outcomes-depending-on-the-type-and-anatomical-axial-location-of-the-hernia-in-patients-treated-with-high-velocity-low-amplitude-spinal-manipulation
#14
Marco Ehrler, Cynthia Peterson, Serafin Leemann, Christof Schmid, Bernard Anklin, B Kim Humphreys
OBJECTIVE: The purpose of this study was to evaluate whether specific MRI features, such as axial location and type of herniation, are associated with outcomes of symptomatic lumbar disc herniation patients treated with spinal manipulation therapy (SMT). METHODS: MRI and treatment outcome data from 68 patients were included in this prospective outcomes study. Pain numerical rating scale (NRS) and Oswestry physical disability questionnaire (OPDQ) levels were measured at baseline...
March 2016: Journal of Manipulative and Physiological Therapeutics
https://www.readbyqxmd.com/read/27013728/photon-recycling-in-lead-iodide-perovskite-solar-cells
#15
Luis M Pazos-Outón, Monika Szumilo, Robin Lamboll, Johannes M Richter, Micaela Crespo-Quesada, Mojtaba Abdi-Jalebi, Harry J Beeson, Milan Vrućinić, Mejd Alsari, Henry J Snaith, Bruno Ehrler, Richard H Friend, Felix Deschler
Lead-halide perovskites have emerged as high-performance photovoltaic materials. We mapped the propagation of photogenerated luminescence and charges from a local photoexcitation spot in thin films of lead tri-iodide perovskites. We observed light emission at distances of ≥50 micrometers and found that the peak of the internal photon spectrum red-shifts from 765 to ≥800 nanometers. We used a lateral-contact solar cell with selective electron- and hole-collecting contacts and observed that charge extraction for photoexcitation >50 micrometers away from the contacts arose from repeated recycling between photons and electron-hole pairs...
March 25, 2016: Science
https://www.readbyqxmd.com/read/26488847/lead-telluride-quantum-dot-solar-cells-displaying-external-quantum-efficiencies-exceeding-120
#16
Marcus L Böhm, Tom C Jellicoe, Maxim Tabachnyk, Nathaniel J L K Davis, Florencia Wisnivesky-Rocca-Rivarola, Caterina Ducati, Bruno Ehrler, Artem A Bakulin, Neil C Greenham
Multiple exciton generation (MEG) in semiconducting quantum dots is a process that produces multiple charge-carrier pairs from a single excitation. MEG is a possible route to bypass the Shockley-Queisser limit in single-junction solar cells but it remains challenging to harvest charge-carrier pairs generated by MEG in working photovoltaic devices. Initial yields of additional carrier pairs may be reduced due to ultrafast intraband relaxation processes that compete with MEG at early times. Quantum dots of materials that display reduced carrier cooling rates (e...
December 9, 2015: Nano Letters
https://www.readbyqxmd.com/read/26262200/exploring-the-challenges-and-opportunities-of-ehealth-tools-for-patients-with-sickle-cell-disease
#17
David-Zacharie Issom, Alexandra Zosso, Frederic Ehrler, Rolf Wipfli, Christian Lovis, Sabine Koch
Sickle cell disease (SCD) is the most prevalent inherited blood disorder in the world. The symptoms decrease the quality of life of patients and can cause premature death. Self-help solutions for chronic patients are rising and increase the quality of life of patients. We are interested to identify the usefulness of eHealth tools for patients with SCD. We did a literature review to identify the main problems faced by patients and the existing eHealth solutions. The results show a low number of studies in the field but a multi-disciplinary interest...
2015: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/25991248/how-to-represent-the-decision-process-in-a-medication-plan-the-case-of-the-swiss-cohort-of-inflammatory-bowel-diseases
#18
Frederic Ehrler, Philippe Baumann, Christian Lovis
Inflammatory bowel diseases (IBD) belong to healthcare problems impacting the quality of life and inducing important costs for the healthcare system. There is still no magical cure against this kind of diseases, but many promising therapies are under investigation. In order to study the efficiency and side effects of the existing drugs and to evaluate new ones, large numbers of patients are followed in long term cohort studies. The particular constraints associated to the follow up of patients with IBD require the implementation of adapted and efficient tools...
2015: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/25991231/reshaping-the-laboratory-results-presentation-layer-three-interfaces-for-handheld-devices
#19
Frederic Ehrler, Marion Brissaud, Rolf Wipfli, Christian Lovis
The interpretation of laboratory results is a critical part of the clinical decision making process. The proper understanding of many clinical conditions depends on the identification of evidences in the laboratory reports. If the classic tabular presentation of laboratory results has demonstrated its efficiency since many years, the increase number of potential results, the increased complexity of cases and the time shortage to analyses cases raise the question of finding more efficient ways of displaying these results to clinicians...
2015: Studies in Health Technology and Informatics
https://www.readbyqxmd.com/read/25980883/opportunities-and-limitations-in-using-google-glass-to-assist-drug-dispensing
#20
Frederic Ehrler, Raphael Diener, Christian Lovis
The administration of intravenous drugs is a significant source of medical errors. Protocol based care are have been demonstrated to be an efficient way to favor best practices and to avoid simple errors such as those related to expiration date, hygiene regulation among other. The recent availability of the Google Glass, a hands free wearable device offers new opportunities to access care protocols at patients' bedside. In this article, we present a prototype application for displaying care protocols developed through a user centered design...
2015: Studies in Health Technology and Informatics
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