9,538 Works

A randomised controlled trial investigating motor skill training as a function of attentional focus in old age

Eling D. De Bruin, Jaap Swanenburg, Elsbeth Betschon & Kurt Murer
Background Motor learning research has had little impact on clinical applications and rarely extended to research about how older adults learn motor skills. There is consistent evidence that motor skill performance and learning can be enhanced by giving learners instructions that direct their attention. The aim of this study was to test whether elderly individuals that receive an external focus instruction during training of dynamic balance skills would learn in a different manner compared to...

Translation and validation of the vertigo symptom scale into German: A cultural adaption to a wider German-speaking population

Thomas Gloor-Juzi, Annette Kurre, Dominik Straumann & Eling D. De Bruin
Background Dizziness and comorbid anxiety may cause severe disability of patients with vestibulopathy, but can be addressed effectively with rehabilitation. For an individually adapted treatment, a structured assessment is needed. The Vertigo Symptom Scale (VSS) with two subscales assessing vertigo symptoms (VSS-VER) and associated symptoms (VSS-AA) might be used for this purpose. As there was no validated VSS available in German, the aim of the study was the translation and cross-cultural adaptation in German (VSS-G)...

Hand-held dynamometry in patients with haematological malignancies: Measurement error in the clinical assessment of knee extension strength

Ruud H. Knols, Geert Aufdemkampe, Eling D. De Bruin, Daniel Uebelhart & Neil K. Aaronson
Background Hand-held dynamometry is a portable and inexpensive method to quantify muscle strength. To determine if muscle strength has changed, an examiner must know what part of the difference between a patient's pre-treatment and post-treatment measurements is attributable to real change, and what part is due to measurement error. This study aimed to determine the relative and absolute reliability of intra and inter-observer strength measurements with a hand-held dynamometer (HHD). Methods Two observers performed maximum...

Combining exergame training with omega-3 fatty acid supplementation: Protocol for a randomized controlled study assessing the effect on neuronal structure/function in the elderly brain

Alexandra Schättin & Eling D. De Bruin
A common problem in the older population is the risk of falling and related injury, immobility, and reduced survival. Age-related neuronal changes, e.g., decline in gray-and white-matter, affect neuronal, cognitive, and motor functioning. The improvement of these factors might decrease fall events in elderly. Studies showed that administration of video game-based physical exercise, a so-called exergame, or omega-3 fatty acid (FA) may improve motor and/or cognitive functioning through neuronal changes in the brain of older...

Comparison of proprioceptive acuity of the cervical spine in healthy adults and adults with chronic non-specific low back pain: A cross-sectional study

Maria Emmert, Corina Schuster-Amft, Eling D. De Bruin & Michael A. McCaskey
Background It has been suggested that patients with chronic non-specific low back pain (CNSLBP) perform poorly in postural tasks when compared to healthy individuals. Despite its importance in posture and alignment of the trunk in relation to the head, neck proprioception has not been examined in patients with low back pain. The purpose of this study was to compare neck proprioception in patients with CNSLBP with healthy individuals. Methods Cervical joint reposition error was measured...

Gait characteristics of CKD patients: a systematic review

Damiano D. Zemp, Olivier Giannini, Pierluigi Quadri & Eling D. De Bruin
Background People with Chronic Kidney Disease (CKD) often present with prevalent gait impairment and high fall rates, particularly in advanced CKD stages. Gait impairment and its consequences is associated with increased hospital admission, institutionalization, and greater need for health care. The objective of this systematic review was to evaluate the quality of studies investigating CKD patients’ gait characteristics at different CKD stages, to highlight areas of agreement and contradiction between studies reporting aspects of gait...

The effect of active video games on cognitive functioning in clinical and non-clinical populations: A meta-analysis of randomized controlled trials

Emma Stanmore, Brendon Stubbs, Davy Vancampfort, Eling D. De Bruin & Joseph Firth
Physically-active video games (‘exergames’) have recently gained popularity for leisure and entertainment purposes. Using exergames to combine physical activity and cognitively-demanding tasks may offer a novel strategy to improve cognitive functioning. Therefore, this systematic review and meta-analysis was performed to establish effects of exergames on overall cognition and specific cognitive domains in clinical and non-clinical populations. We identified 17 eligible RCTs with cognitive outcome data for 926 participants. Random-effects meta-analyses found exergames significantly improved global...

Tailoring the framework composition of carbon nitride to improve the catalytic efficiency of the stabilised palladium atoms

Evgeniya Vorobyeva, Zupeng Chen, Sharon Mitchell, Rowan K. Leary, Paul Midgley, John M. Thomas, Roland Hauert, Edvin Fako, Núria López & Javier Pérez-Ramírez
Journal of Materials Chemistry A, 5 (31)

Preparation of highly active phosphated TiO2 catalysts via continuous sol-gel synthesis in a microreactor

Oliver Martin, N. Bolzli, Begoña Puértolas, Javier Pérez-Ramírez & Peter Riedlberger
Microreactors, featuring μm-sized tubes, offer greater flexibility and precise control of chemical processes compared to conventional large-scale reactors, due to their elevated surface-to-volume ratio and modular construction. However, their application in catalyst production has been largely neglected. Herein, we present the development of a microreactor process for the one-step sol–gel preparation of phosphated TiO2 – a catalyst which has been recently demonstrated to be an eco-friendly material for the selective synthesis of the platform chemical...

Quantifying intrinsic and extrinsic control of single-cell fates in cancer and stem/progenitor cell pedigrees with competing risks analysis

James A. Cornwell, Robin M. Hallett, Stefanie Auf Der Mauer, Ali Motazedian, Timm Schroeder, Jonathan S. Draper, Richard P. Harvey & Robert E. Nordon
The molecular control of cell fate and behaviour is a central theme in biology. Inherent heterogeneity within cell populations requires that control of cell fate is studied at the single-cell level. Time-lapse imaging and single-cell tracking are powerful technologies for acquiring cell lifetime data, allowing quantification of how cell-intrinsic and extrinsic factors control single-cell fates over time. However, cell lifetime data contain complex features. Competing cell fates, censoring, and the possible inter-dependence of competing fates,...

Advanced traffic control strategies and their potential application in Greece

Markos Papageorgiou, Elias B. Kosmatopoulos, Ioannis Papamichail, Yanzhuang Wang, Anastasios Kouvelas & Konstantinos Aboudolas
Proceedings of the 3rd International Congress on Transportation Research

Visual capture of gait during redirected walking

Yannick Rothacher, Anh Nguyen, Bigna Lenggenhager, Andreas Kunz & Peter Brugger
Redirected walking allows users of virtual reality applications to explore virtual environments larger than the available physical space. This is achieved by manipulating users’ walking trajectories through visual rotation of the virtual surroundings, without users noticing this manipulation. Apart from ist applied relevance, redirected walking is an attractive paradigm to investigate human perception and locomotion. An important yet unsolved question concerns individual differences in the ability to detect redirection. Addressing this question, we administered several...

AraPheno: A public database for Arabidopsis thaliana phenotypes

Ümit Seren, Dominik Grimm, Joffrey Fitz, Detlef Weigel, Magnus Nordborg, Karsten M. Borgwardt & Arthur Korte
Natural genetic variation makes it possible to discover evolutionary changes that have been maintained in a population because they are advantageous. To understand genotype–phenotype relationships and to investigate trait architecture, the existence of both high-resolution genotypic and phenotypic data is necessary. Arabidopsis thaliana is a prime model for these purposes. This herb naturally occurs across much of the Eurasian continent and North America. Thus, it is exposed to a wide range of environmental factors and...

From Point to Area: Worldwide Assessment of the Representativeness of Monthly Surface Solar Radiation Records

Matthias Schwarz, Doris Folini, Maria Z. Hakuba & Martin Wild
The representativeness of surface solar radiation (SSR) point observations is an important issue when using them in combination with gridded data. We conduct a comprehensive near‐global (50°S to 55°N) analysis on the representativeness of SSR point observations on the monthly mean time scale. Thereto, we apply the existing concepts of decorrelation lengths (δ), spatial sampling biases (β), and spatial sampling errors (ε) to three high‐resolution gridded monthly mean SSR data sets (CLARA, SARAH‐P, and SARAH‐E)...

Background Free-Tropospheric Ice Nucleating Particle Concentrations at Mixed-Phase Cloud Conditions

Larissa Lacher, Paul J. DeMott, Ezra J. Levin, Kaitlyn J. Suski, Yvonne Boose, Assaf Zipori, Erik Herrmann, Nicolas Bukowiecki, Martin Steinbacher, Ellen Gute, Jonathan P.D. Abbatt, Ulrike Lohmann & Zamin A Kanji
Clouds containing ice are vital for precipitation formation and are important in determining the Earth's radiative budget. However, primary formation of ice in clouds is not fully understood. In the presence of ice nucleating particles (INPs), the phase change to ice is promoted, but identification and quantification of INPs in a natural environment remains challenging because of their low numbers. In this paper, we quantify INP number concentrations in the free troposphere (FT) as measured...

Towards understanding corrosion initiation in concrete – Influence of local electrochemical properties of reinforcing steel

Lucas Michel & Ueli Angst
The ageing of reinforced concrete (RC) structures in the industrialized countries increases the probability of durability issues. The mechanism of chloride-induced corrosion, the most common deterioration process in RC structures, is still not well understood. Improvement in the understanding of localized corrosion initiation is crucially required to allow for cost efficient and durable maintenance of the existing infrastructures and for service life design of new structures. This study reports results from localized electrochemical characterization of...

Preferred analysis methods for single genomic regions in RNA sequencing revealed by processing the shape of coverage

Michał J. Okoniewski, Anna Leśniewska, Alicja Szabelska, Joanna Zyprych-Walczak, Martin Ryan, Marco Wachtel, Tadeusz Morzy, Beat Schäfer & Ralph Schlapbach
The informational content of RNA sequencing is currently far from being completely explored. Most of the analyses focus on processing tables of counts or finding isoform deconvolution via exon junctions. This article presents a comparison of several techniques that can be used to estimate differential expression of exons or small genomic regions of expression, based on their coverage function shapes. The problem is defined as finding the differentially expressed exons between two samples using local...

A robust ALD-protected silicon-based hybrid photoelectrode for hydrogen evolution under aqueous conditions

Soundarrajan Chandrasekaran, Nicolas Kaeffer, Laurent Cagnon, Dmitry Aldakov, Jennifer Fize, Guillaume Nonglaton, Francois Baleras, Pascal Mailley & Vincent Artero
Hydrogen production through direct sunlight-driven water splitting in photo-electrochemical cells (PECs) is a promising solution for energy sourcing. PECs need to fulfill three criteria: sustainability, cost-effectiveness and stability. Here we report an efficient and stable photocathode platform for H2 evolution based on Earth-abundant elements. A p-type silicon surface was protected by atomic layer deposition (ALD) with a 15 nm TiO2 layer, on top of which a 300 nm mesoporous TiO2 layer was spin-coated. The cobalt...

Direct WIMPs Search with the ArDM Experiment and Preliminary Results from 1.43 Days of Physics Data

Wei Mu
Studying the Universe, many cosmological observations indicate a lot of dark mass in the Universe. It is widely accepted that more than 25% of the matter consists of the so-called cold dark matter. The weakly interacting massive particle (WIMP) is one of the promising candidates for dark matter particles. However, a direct proof of the existence of dark matter particle, i. e. a direct observation of dark matter interaction in laboratory has not been delivered...

Computational Causality and Learning from Partitioned Data

Christina Heinze-Deml

Balancing clean water-climate change mitigation trade-offs

Simon Parkinson, Volker Krey, Daniel Huppmann, Taher Kahil, David McCollum, Oliver Fricko, Edward Byers, Matthew J. Gidden, Beatriz Mayor, Zarrar Khan, Catherine Raptis, Narasimha D. Rao, Nils Johnson, Yoshihide Wada, Ned Djilali & Keywan Riahi
Energy systems support technical solutions fulfilling the United Nations’Sustainable DevelopmentGoal for clean water and sanitation(SDG6), with implications for future energy demands andgreenhouse gas emissions. The energy sector is also a large consumer of water, making water efficiencytargets ingrained in SDG6 important constraints for long-term energy planning. Here, we apply aglobal integrated assessment model to quantify the cost and characteristics of infrastructure pathwaysbalancing SDG6 targets for water access, scarcity, treatment and efficiency with long-term energytransformations limiting...

Magnetometer-Based Drift Correction During Rest inIMU Arm Motion Tracking

Frieder Wittmann, Olivier Lambercy & Roger Gassert
Real-time motion capture of the human arm in the home environment has many use cases, such as video game and therapy applications. The required tracking can be based on off-the-shelf Inertial Measurement Units (IMUs) with integrated three-axis accelerometers, gyroscopes, and magnetometers. However, this usually requires a homogeneous magnetic field to correct for orientation drift, which is often not available inside buildings. In this paper, RPMC (Rest Pose Magnetometer-based drift Correction), a novel method that is...

Topic modelling & explorative Suche

Moritz Mähr

Application of the urban traffic control strategy TUC at the Kifisias–Attiki Odos roundabout

Anastasia D. Spiliopoulou, Markos Papageorgiou, Anastasios Kouvelas & Konstantinos Aboudolas
Το άρθρο αναφέρεται στην εφαρμογή της στρατηγικής ελέγχου φωτεινής σηματοδότησης TUC στο δίκτυο Κηφισίας - Παρ. Αττικής Οδού με στόχο τη διερεύνηση, μέσω μικροσκοπικής προσομοίωσης, της εν δυνάμει βελτίωσης των κυκλοφοριακών συνθηκών του δικτύου συγκριτικά με το τωρινό εφαρμοζόμενο σταθερό πλάνο φωτεινής σηματοδότησης. Επίσης, διερευνάται αν η στρατηγική TUC μπορεί να αντιμετωπίσει το φαινόμενο εισχώρησης της κυκλοφοριακής συμφόρησης (μέσω των εξόδων της Αττικής Οδού) στην κύρια ροή της Αττικής Οδού, γεγονός που παρατηρείται στην πραγματικότητα,...

Gazette, Issue 15 (2012): FCL - Future Cities Laboratory

Tilak Doshi, Donald Low, Elaine Teo & Derek Vollmer
Gazette

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