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Maurer Lisa K LK Neuromotor Behavior Lab, Department of Psychology and Sport Science, Justus-Liebig-University, Giessen, Germany. Electronic address: - - 2014
Timely movement initiation is crucial in quick reactions or when a series of movements has to be strung together in a timed fashion to create a coordinated sequence. Stochastic neural variability can lead to misinitiation errors as reaction time studies suggest. Higher reaction times occur when preparatory neural activity reaches ...
Gu Meng - - 2014
From signal transduction of living cells to oxidation and corrosion of metals, mechanical stress intimately couples with chemical reactions, regulating these biological and physiochemical processes. The coupled effect is particularly evident in electrochemical lithiation/delithiation cycling of high-capacity electrodes, such as silicon (Si), where on the one hand lithiation-generated stress mediates ...
Richter Chris C Applied Sports Performance Research, School of Health and Human Performance, Dublin City University, Dublin, - - 2014
In functional principal component analysis (fPCA) a threshold is chosen to define the number of retained principal components, which corresponds to the amount of preserved information. A variety of thresholds have been used in previous studies and the chosen threshold is often not evaluated. The aim of this study is ...
Manfredi Mirella M Department of Psychology, University of Milano-Bicocca, Piazza dell'Ateneo Nuovo 1, 20126, Milan, Italy; Department of Cognitive Science, University of California San Diego, La Jolla, California, 92093, USA. Electronic address: - - 2014
The goal of the present study was to shed some light on a particular kind of humour, called slapstick, by measuring brain bioelectrical activity during the perception of funny vs. non funny pictures involving misfortunate circumstances. According to our hypothesis, the element mostly providing a comic feature in a misfortunate ...
Rkein Ali M AM Department of Dermatology, Henry Ford Hospital, 3031 West Grand Boulevard, Suite 800, Detroit, MI, - - 2014
Photodynamic therapy (PDT) relies on the interaction between a photosensitizer, the appropriate wavelength, and oxygen to cause cell death. First introduced about 100 years ago, PDT has continued to evolve in dermatology into a safe and effective treatment option for several dermatologic conditions. PDT is also used by pulmonologists, urologists, and ...
Lee Minah M Department of Materials Science and Engineering, KAIST Institute for NanoCentury, KAIST, Daejeon, 305-701, Republic of - - 2014
The back cover image illustrates an innovative scheme for the fabrication of elaborate plasmonic core-shell nanohybrid architectures using multi-purpose mussel-inspired polydopamine nanolayers. The design flexibility and simplicity provides an effective way to develop plasmon-enhanced solar-energy-conversion platforms. By coupling plasmonic resonators and photosensitizers on a sub-nanometer scale through a simple solution-based ...
Esteves da Silva Joaquim C G - - 2014
Firefly bioluminescence is a phenomenon that attracts attention from the research community due to complex challenges for fundamental investigation, as well as presenting diverse opportunities for practical application. Here we have studied the potential deprotonation of firefly oxyluciferin, by using a theoretical approach in an enzymatic-like microenvironment, in chemiexcited proton ...
Hill Jane F JF , 8211 Hawthorne Road, Bethesda, MD, 20817-3102, USA, - - 2014
During the early- to mid-twentieth century, a bitter controversy raged among researchers on photosynthesis regarding the minimum number of light quanta required for the evolution of one molecule of oxygen. From 1923 until his death in 1970, Otto Warburg insisted that this value was about three or four quanta. Beginning ...
Chang Ryan R Biomechanics Laboratory, Department of Kinesiology, University of Massachusetts Amherst, Amherst, MA 01003, USA. Electronic address: - - 2014
Clinically, plantar fasciitis (PF) is believed to be a result and/or prolonged by overpronation and excessive loading, but there is little biomechanical data to support this assertion. The purpose of this study was to determine the differences between healthy individuals and those with PF in (1) rearfoot motion, (2) medial ...
Hur Pilwon - - 2014
Timely reaction to perturbation is important in activities of daily living. Modulation of reaction time to and early recovery from perturbation via vibrotactile noise was investigated. It was hypothesized that subthreshold vibrotactile noise applied to the upper extremity can accelerate a person's reaction to and recovery from handle perturbation. This ...
Radwin Robert G - - 2014
A laboratory study investigated the relationship between power hand tool and task-related factors affecting threaded fastener torque accuracy and associated handle reaction force. We previously developed a biodynamic model to predict handle reaction forces. We hypothesized that torque accuracy was related to the same factors that affect operator capacity to ...
Ganasen Ponnarasy P Faculty of Chemical and Natural Resources Engineering, Universiti Malaysia Pahang, Lebuhraya Tun Razak, Gambang, 26300, Kuantan, Pahang Darul Makmur, - - 2014
This paper demonstrates Pseudomonas cepacia lipase catalyzed hydrolysis of p-nitrophenyl palmitate under irradiation of light with wavelengths of 250-750 nm. The reaction follows Michaelis-Menten Kinetics and the light irradiation increases the overall rate of hydrolysis. Using Lineweaver-Burk plot K M and V max values for the reaction in presence of light ...
Skorkovská Karolína K Department of Ophthalmology and Optometry, St. Ann University Eye Hospital, Pekarska, 53, 656 91 Brno, Czech Republic, - - 2014
To ascertain whether the pupillary response amplitude shows spatial summation of responses with increasing size of retinal stimulation, and to examine the pupillary responses for evidence of surround inhibition, analogous to that found in the receptive fields of the retinal ganglion cells. By means of infrared-video-pupillography, the pupil reaction to ...
Ballottari Matteo M Department of Biotechnology, University of Verona, I-37134 Verona, - - 2014
In oxygenic photosynthetic eukaryotes, the hydroxylated carotenoid zeaxanthin is produced from preexisting violaxanthin upon exposure to excess light conditions. Zeaxanthin binding to components of the photosystem II (PSII) antenna system has been investigated thoroughly and shown to help in the dissipation of excess chlorophyll-excited states and scavenging of oxygen radicals. ...
Hauck Anna F E AF Manchester Institute of Biotechnology; The University of Manchester, United - - 2014
The coupling of photochemistry to protein chemical and structural change is crucial to biological light-activated signaling mechanisms. This is typified by cyanobacteriochromes (CBCRs), members of the phytochrome superfamily of photoreceptors that exhibit a high degree of spectral diversity, collectively spanning the entire visible spectrum. CBCRs utilize a basic E/Z isomerization ...
Schlittenlacher Josef J Institut für Psychologie, Technische Universität Darmstadt, Alexanderstraße 10, 64283, Darmstadt, Germany, - - 2014
In order to yield equal loudness, different studies using scaling or matching methods have found binaural level differences between monaural and diotic presentations ranging from less than 2 dB to as much as 10 dB. In the present study, a reaction time methodology was employed to measure the binaural level difference producing ...
Chatzopoulos Dimitris D Department of Physical Education and Sport Sciences , - - 2014
The purpose of this study was to compare the acute effects of three different stretching protocols on balance, agility, reaction time and movement time of the upper limbs. Participants were thirty one female high school athletes (age = 17.3 ± 0.5 yr.). All participants performed one of the following protocols ...
Kuse Masaki M a Laboratory of Natural Products Chemistry , Graduate School of Agricultural Science, Kobe University , Kobe , - - 2014
Bioluminescence is a chemical reaction process for light emission in vivo. An organic substance is normally oxidized in the protein to obtain the energy required for the light emission. Determination of the structure of the substance is one of the most important parts of bioluminescent research. Photoproteins of a flying ...
Liu Guhuan - - 2014
Stimuli-triggered disassembly of block copolymer vesicles or polymersomes has been conventionally achieved via solubility switching of the bilayer-forming block, requiring cooperative changes of most of the repeating units. Herein we report an alternative approach by incorporating hydrophobic blocks exhibiting stimuli-triggered head-to-tail cascade depolymerization features. Amphiphilic block copolymers bearing this motif ...
Cai Shunyou S Laboratory of Chemical Genomics, School of Chemical Biology and Biotechnology, Shenzhen Graduate School of Peking University , Shenzhen, China - - 2014
A judicious combination of Au-catalysis and synergistic visible-light stimulation formulates an exceptionally simple and mild reaction system capable of directly coupling anilines and alkynes to form multifunctionalized indoles.
Li Changjiang C Key Laboratory for Green Chemical Technology of Ministry of Education, School of Chemical Engineering and Technology, Tianjin University, Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, - - 2014
An efficient g-C3 N4 /BiVO4 heterojunction photocatalyst is constructed with BiVO4 networks decorated by discrete g-C3 N4 nano-islands with controllable coverage. The as-synthesized g-C3 N4 /BiVO4 photo-catalyst shows superior visible light photocatalytic activity. The enhanced photocatalytic activity can be ascribed to increased charge separation efficiency, separated redox reaction sites, fully ...
Clark Kenneth P KP Southern Methodist University, - - 2014
Running performance, energy requirements, and musculoskeletal stresses are directly related to the action-reaction forces between the limb and ground. For human runners, the force-time patterns from individual footfalls can vary considerably across speed, foot-strike, and footwear conditions. Here, we used four human footfalls with distinctly different vertical force-time waveform patterns ...
Bartolomei Vincent V Aix Marseille University, CNRS, FRE 3416, Case 29, 3 place Victor Hugo, 13331, Marseille Cedex 3, - - 2014
Gaseous nitrogen dioxide (NO2) represents an oxidant that is present in relatively high concentrations in various indoor settings. Remarkably increased NO2 levels up to 1.5 ppm are associated with homes using gas stoves. The heterogeneous reactions of NO2 with adsorbed water on surfaces lead to the generation of nitrous acid (HONO). ...
Yang Hui H Key Laboratory of Luminescence and Real-Time Analytical Chemistry (Southwest University), Ministry of Education, College of Chemistry and Chemical Engineering, Southwest University, Chongqing 400715, China. - - 2014
Monitoring chemical reactions using tools of analytical chemistry is crucial for understanding the mechanisms of these reactions. In this study, leaf-like poly(p-phenylenediamine) (PpPD) microparticles were prepared with precisely tailored properties. The dark field microscopy protocol proved to be a powerful tool for studying the erosion of microparticles induced by Co(2+). ...
Zele Andrew J - - 2014
We studied the effect of rod-cone interactions on mesopic visual reaction time (RT). Rod and cone photoreceptor excitations were independently controlled using a four-primary photostimulator. It was observed that (1) lateral rod-cone interactions increase the cone-mediated RTs; (2) the rod-cone interactions are strongest when rod sensitivity is maximal in a dark surround, ...
Knez Igor I University of Gävle, Department of Social Work and Psychology, SE-801 76 Gävle, Sweden. Electronic address: - - 2014
This study renews the classical concept of subliminal perception (Peirce & Jastrow, 1884) by investigating the impact of subliminal flicker from fluorescent lighting on affect and cognitive performance. It was predicted that low compared to high frequency lighting (latter compared to former emits non-flickering light) would evoke larger changes in ...
Rousanoglou Elissavet E Sport Biomechanics Lab-Department of Sport Medicine & Biology of Exercise, Faculty of Physical Education & Sports Science, National & Kapodistrian University of Athens, - - 2014
The purpose of this study was to examine the differences in the ground reaction force (GRF) patterns between elite and novice players during two types of handball shots, as well as the relationships between throwing performance and the GRF variables. Ball velocity and throwing accuracy were measured during jump shots ...
Zahradnik David D Human Motion Diagnostic Center, University of Ostrava, Ostrava, Czech - - 2014
A non-contact anterior cruciate ligament (ACL) injury is both a serious and very common problem in volleyball. The aim of the study was to determine the association between stick, step-back, and run-back landings after a block and select risk factors of ACL injuries for female professional volleyball players. The research ...
Yamamoto Yasusi Y Graduate School of Natural Science and Technology, Okayama University, Okayama 700-8530, - - 2014
The grana thylakoids of higher-plant chloroplasts are crowded with Photosystem II (PSII) and the associated light-harvesting complexes (LHCII). They constitute supercomplexes, and often form semi-crystalline arrays in the grana. The crowded condition of the grana may be necessary for efficient trapping of excitation energy by LHCII under weak light, but ...
Preska Steinberg Asher - - 2014
We study the growth dynamics of Turing patterns in the chlorine dioxide-iodine-malonic acid reaction-diffusion system in response to perturbations with visible light. We describe several mechanisms by which Turing patterns reappear after they are suppressed by illumination with a disc-shaped geometry. We observe that under specific conditions the patterns reorganize ...
Schultz Danielle M DM Department of Chemistry, University of Wisconsin-Madison, 1101 University Avenue, Madison, WI 53706, - - 2014
Chemists have long aspired to synthesize molecules the way that plants do-using sunlight to facilitate the construction of complex molecular architectures. Nevertheless, the use of visible light in photochemical synthesis is fundamentally challenging because organic molecules tend not to interact with the wavelengths of visible light that are most strongly ...
Inoue Koichiro K a Graduate School of Education and Human Development , Nagoya University , Nagoya , - - 2014
Abstract We aimed to illustrate support leg dynamics during instep kicking to evaluate the role of the support leg action in performance. Twelve male soccer players performed maximal instep kicks. Their motions and ground reaction forces were recorded by a motion capture system and a force platform. Moments and angular ...
Chambon Nicolas N Aix-Marseille University, CNRS, ISM UMR 7287, 163 Avenue de Luminy, 13288 Marseille Cedex 09, France; Oxylane Research, Decathlon Campus, 4 Boulevard de Mons, 59665 Villeneuve d'Ascq, France. Electronic address: - - 2014
Many studies have highlighted differences in foot strike pattern comparing habitually shod runners who ran barefoot and with running shoes. Barefoot running results in a flatter foot landing and in a decreased vertical ground reaction force compared to shod running. The aim of this study was to investigate one possible ...
Vinyard David J - - 2014
The D1 protein of Photosystem II (PSII) provides most of the ligating amino acid residues for the Mn4CaO5 water-oxidizing complex (WOC), half of the reaction center cofactors, and is present as two isoforms in the cyanobacterium Synechococcus elongatus PCC 7942. These isoforms, D1:1 and D1:2, confer functional advantages for photosynthetic ...
Asadirad Amir Mahmoud - - 2014
A thermally remendable polymer was synthesized based on the Diels-Alder reaction between dithienylfuran and maleimide monomers to generate a photoresponsive diarylethene. UV and visible light (312 nm) 'gate' the reversibility of the Diels-Alder reaction and turns 'off' and 'on' the self-healing properties of the polymer, respectively. After exposure to UV ...
Wearing Scott C SC 1Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia. 2Centre of Excellence for Applied Sport Science Research, Queensland Academy of Sport, Brisbane, Australia 3University of Melbourne, Melbourne, Australia 4Faculty of Sports and Health Sciences, Technische Universität München, München, - - 2014
Footwear remains a prime candidate for the prevention and rehabilitation of Achilles tendinopathy as it is thought to decrease tension in the tendon through elevation of the heel. However, evidence for this effect is equivocal. This study used an acoustic transmission technique to investigate the effect of running shoes on ...
Ertelt T T Department of Motion Science Institute of Sport Science FSU, Jena, Germany - - - 2014
Background: Hopping dependent on speed causes different characteristics of ground reaction force pattern. Strongly set training-specific stimuli equally induce a corresponding characteristic of the force shape that is widely independent of hopping frequency. Thus it could be shown that 'jumpers' still generate a single modal force pattern with slow frequencies. ...
Zhang Xingguang X School of Chemistry, Physics and Mechanical Engineering, Queensland University of Technology, QLD 4001, - - 2014
Light absorption efficiency of heterogeneous catalysts has restricted their photocatalytic capability for commercially important organic synthesis. Here, we report a way of harvesting visible light efficiently to boost zeolite catalysis by means of plasmonic gold nanoparticles (Au-NPs) supported on zeolites. Zeolites possess strong Brønsted acids and polarized electric fields created ...
Yoshinaga Natsuhiko N WPI, Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, - - 2014
The time evolution equation of motion and shape are derived for a self-propelled droplet driven by a chemical reaction. The coupling between the chemical reaction and motion makes an inhomogeneous concentration distribution as well as a surrounding flow leading to the instability of a stationary state. The instability results in ...
Ruban Alexander V AV School of Biological and Chemical Sciences, Queen Mary University of London, , Mile End Road, London E1 4NS, - - 2014
The principle of quantifying the efficiency of protection of photosystem II (PSII) reaction centres against photoinhibition by non-photochemical energy dissipation (NPQ) has been recently introduced by Ruban & Murchie (2012 Biochim. Biophys. Acta 1817, 977-982 (doi:10.1016/j.bbabio.2012.03.026)). This is based upon the assessment of two key parameters: (i) the relationship between ...
Gutiérrez-Dávila Marcos M Department of Physical Education and Sport, University of Granada, Faculty of Sports Sciences , Granada, - - 2014
The aim of this study is to determine the effect that uncertainty, in relation to the probability of error, exerts on the reaction response and speed during the lunge in fencing. The participants were 18 regional-level fencers with over five years' experience. Force platforms under the feet recorded the horizontal ...
Kuo Sandy - - 2014
Solar urticaria is an uncommon condition characterized by erythema and whealing shortly after exposure to ultraviolet (UV) and/or visible light. We report a 25-year-old woman with an erythematous, edematous, pruritic reaction minutes after sun exposure while she was taking terbinafine for onychomycosis. Phototesting revealed a UVB-sensitive urticarial reaction, confirming the ...
Tulppo Mikko P MP Department of Exercise and Medical Physiology Verve, Oulu, - - 2014
Purpose: A recent study suggests that transcranial brain targeted light treatment via ear canals may have physiological effects on brain function studied by functional magnetic resonance imaging (fMRI) techniques in humans. We tested the hypothesis that bright light treatment could improve psychomotor speed in professional ice hockey players. Methods: Psychomotor ...
Ellison Ashton C AC Dunedin School of Medicine, Department of Medicine, Dunedin, New - - 2014
Multifocal glasses (bifocals, trifocals, and progressives) increase the risk of falling in elderly people, but how they do so is unclear. To explain why glasses with progressive addition lenses increase the risk of falls and whether this can be attributed to false projection, this study aimed to 1) map the ...
Zahran Elsayed M EM Department of Chemistry, University of Miami , Coral Gables, Florida 33146, United - - 2014
Transitioning energy-intensive and environmentally intensive processes toward sustainable conditions is necessary in light of the current global condition. To this end, photocatalytic processes represent new approaches for H2 generation; however, their application toward tandem catalytic reactivity remains challenging. Here, we demonstrate that metal oxide materials decorated with noble metal nanoparticles ...
Bencina Metka M Materials Research Laboratory, University of Nova Gorica, Vipavska 13, 5000 Nova Gorica, Slovenia. - - 2013
Bi-Fe-Nb-O pyrochlore nanoparticles were synthesized by a facile coprecipitation reaction. They exhibit intense visible-light absorption due to a narrow band gap and high visible-light photocatalytic activity for degradation of methyl orange.
Hendershot Brad D BD Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, MD 20889, USA; Center for Rehabilitation Sciences Research, Department of Physical Medicine and Rehabilitation, Uniformed Services University of the Health Sciences, Bethesda, MD 20814, USA. Electronic address: - - 2013
Abnormal mechanics of locomotion following lower-extremity amputation are associated with increases in trunk motion, which in turn may alter loads at the low back due to changes in inertial and gravitational demands on the spine and surrounding trunk musculature. Over-ground gait data were retrospectively compiled from two groups walking at ...
Nourhani Amir A Department of Physics, Pennsylvania State University, University Park, Pennsylvania 16802, USA and Department of Chemical Engineering, Pennsylvania State University, University Park, Pennsylvania 16802, - - 2013
Nanomotors convert chemical energy into mechanical motion. For a given motor type, the underlying chemical reaction that enables motility is typically well known, but the detailed, quantitative mechanism by which this reaction breaks symmetry and converts chemical energy to mechanical motion is often less clear, since it is difficult experimentally ...
Farney Elliot P - - 2013
Irradiation of vinyl and aryl azides with visible light in the presence of Ru photocatalysts results in the formation of reactive nitrenes, which can undergo a variety of CN bond-forming reactions. The ability to use low-energy visible light instead of UV in the photochemical activation of azides avoids competitive photodecomposition ...
Simakov David S A - - 2013
We report on the experimental study of noise-induced oscillations in the photosensitive Ru(bpy)3(2+)-catalyzed Belousov-Zhabotinsky reaction in a continuously stirred tank reactor (CSTR). In the absence of deterministic oscillations and any external periodic forcing, oscillations appear when the system is perturbed by stochastic fluctuations in light irradiation with sufficiently high amplitude ...
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