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Lazzer Stefano S Department of Medical and Biological Sciences, University of Udine, - - 2014
To investigate the effects of an extreme uphill marathon on the mechanical parameters that are likely to affect the energy cost of running (Cr). Eleven runners (27-59 years) participated in the "Etna SuperMarathon" (43 km, 0-3063 m a.s.l.). Anthropometric characteristics, maximal explosive power of the lower limb (Pmax) and VO2max ...
Wu Menghao - - 2014
A spatially varying bandgap drives exciton motion, and can be used to funnel energy within a solid. This bandgap modulation can be created by composition variation (traditional heterojunction), elastic strain, or in the work shown next, by a small twist between two identical semiconducting atomic sheets, creating an internal stacking ...
Hendershot Brad D BD Department of Rehabilitation, Walter Reed National Military Medical Center, Bethesda, MD 20889, USA; Department of Physical Medicine and Rehabilitation, Uniformed Services University of, the Health Sciences, Bethesda, MD 20814, USA. Electronic address: - - 2014
To analyze mediolateral joint powers at the low back during gait among persons with and without unilateral transfemoral amputation, to better understand the functional contributions of tissues in/surrounding the low back to altered lateral trunk movements in this population. Retrospective analysis of biomechanical gait data. Gait laboratory. Twenty persons with ...
Boothalingam Sriram S National Centre for Audiology, Western University, London, Ontario, Canada. N6G1H1. Electronic address: - - 2014
It is well known that medial olivocochlear system (MOC) activity causes inhibition of cochlear amplification that can be measured using otoacoustic emissions (OAEs). The temporal characteristics of this MOC inhibitory effect are still not well understood. Two experiments were performed to further explore a previously reported enhancement in MOC inhibition ...
Li Cheng-Chang - - 2014
An electrically activated bistable light shutter that exploits polymer-stabilized cholesteric liquid crystal film was developed. Under double-sided three-terminal electrode driving, the device can be bistable and switched between focal conic and homeotropic textures with a uniform in-plane and vertical electrical field. The transparent state with a transmittance of 80% and ...
Pavan Andrea A Institut für Psychologie, Universität Regensburg, Universitätsstr. 31, 93053, Regensburg, Germany, - - 2014
The Adelson-Bergen motion energy sensor is well established as the leading model of low-level visual motion sensing in human vision. However, the standard model cannot predict adaptation effects in motion perception. A previous paper Pavan et al.(Journal of Vision 10:1-17, 2013) presented an extension to the model which uses a ...
Karimi Mohammad Taghi MT Musculoskeletal Research Center, Isfahan University of Medical Sciences , Isfahan , Iran - - 2014
Abstract Background: Spinal cord injury (SCI) influences a person's ability to stand and walk. Various orthoses have been developed to solve these standing and walking problems, however, patients still experience high energy consumption during walking and high forces on the upper limbs. A new reciprocal gait orthosis (RGO) was designed ...
Hwang Choongyu C Department of Physics, Pusan National University, Busan 609-735, - - 2014
We have investigated graphene using circularly polarized light via angle-resolved photoemission spectroscopy. We observe that photoelectron intensity rotates around a constant energy contour towards the opposite direction upon changing the chirality of light. Interestingly, the circular dichroism is found to be asymmetric with respect to the Dirac energy, which is ...
Paschke Fritz - - 2014
Abstract To explain the successful treatment of various inflammatory diseases by using intensive red light, a non-linear theory is presented for the interaction of electric dipoles with light involving frequency doubling. It is applied to analyze the influence of light on organic molecules with permanent electric dipoles. The molecule 5-hydroxy-12-oxo-(5S,6Z,8E,10E,14Z)-6,8,10,14-eicosatetraenoic ...
Driscoll B B Department of Physics, Arizona State University, Tempe, AZ 85287, - - 2014
Time-resolved fluorescence spectroscopy was used to explore the pathway and kinetics of energy transfer in photosynthetic membrane vesicles (chromatophores) isolated from Rhodobacter (Rba.) sphaeroides cells harvested 2, 4, 6 or 24 hours after a transition from growth in high to low level illumination. As previously observed, this light intensity transition ...
Au Whitlow W L WW Hawaii Institute of Marine Biology, P.O. Box 1106, Kailua, Hawaii - - 2014
The target detection capability of bottlenose dolphins in the presence of artificial masking noise was first studied by Au and Penner [J. Acoust. Soc. Am. 70, 687-693 (1981)] in which the dolphins' target detection threshold was determined as a function of the ratio of the echo energy flux density and ...
Kim ChickensNara C Animal Plant and Fisheries Quarantine and Inspection Agency, Anyang 430-824, Korea - - 2014
This study was conducted in order to investigate whether the presence of light or different colors of light would influence the energy expenditure and behavior of broiler chickens. Eight 8-week-old broiler chickens were adapted to a respiration chamber (Length, 28.5 cm; Height, 38.5 cm; Width, 44.0 cm) for one week ...
Timpmann Kõu K Institute of Physics, University of Tartu, Riia 142, Tartu 51014, - - 2014
In this study, we use the photosynthetic purple bacterium Rhodobacter sphaeroides to find out how the acclimation of photosynthetic apparatus to growth conditions influence the rates of energy migration towards the reaction center traps and the efficiency of charge separation at the reaction centers. To answer these questions we measured ...
Zhang Lingling L State Key Laboratory of Electroanalytical Chemistry, Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, Changchun Jilin,130022 (PR China); University of Chinese Academy of Sciences, Beijing, 100049 (PR - - 2014
A glucose/air biofuel cell (BFC) that can convert both chemical and light energy into electricity is described. Polyterthiophene (pTTh), a photoresponsive conducting polymer, serves as cathode and catalyzes the reduction of oxygen. Taking advantage of the good environmental stability and exceptional optical properties of pTTh, the assembled BFC exhibits excellent ...
Menotti Federica F Department of Human Movement, Social and Health Sciences, University of Rome Foro Italico, 00135 Rome, - - 2014
Objective: To compare walking energy cost between an anterior and a posterior ankle-foot orthosis in people with foot drop. Design: Within-group comparisons. Participants: Twenty-three adults (14 women, 9 men; mean age 56.8 years (standard deviation 15.4)) with foot drop. Methods: Participants were asked to walk for 5 min at their ...
Neri Peter P Institute of Medical Sciences, University of Aberdeen, Foresterhill, Aberdeen AB25 2ZD, United Kingdom, and Laboratoire des Systèmes Perceptifs and Département d'Études Cognitives, École Normale Supérieure, 75005 Paris, France - - 2014
Motion detection is a fundamental property of the visual system. The gold standard for studying and understanding this function is the motion energy model. This computational tool relies on spatiotemporally selective filters that capture the change in spatial position over time afforded by moving objects. Although the filters are defined ...
Wang Hui H Nano-organic Photoelectronic Laboratory and Key Laboratory of Photochemical Conversion and Optoelectronic Materials, Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing, 100190, People's Republic of - - 2014
Photoelectrochemical (PEC) cell supports a renewable method for solving current environmental and energy issues by combining solar energy collection and photocatalysis in a single semiconductor photoelectrode. However, it is still challenged by visible light photoelectrodes. The present work reports fabricating highly efficient and stable Si nanowires (SiNWs) array as visible ...
Yang He H School of Materials and Metallurgy, Northeastern University, Shenyang 110819, China. Electronic address: - - 2014
The photocatalytic degradation of methylene blue (MB) over Fe-doped CaTiO3 under UV-visible light was investigated. The as-prepared samples were characterized using X-ray diffraction (XRD), scanning electron microscope (SEM) equipped with an energy dispersive spectrometer (EDS) system, Fourier transform infrared spectra (FT-IR), and UV-visible diffuse reflectance spectroscopy (DRS). The results show ...
Grant Alexander M AM Department of Bioengineering, Stanford University, Stanford, CA, USA. Molecular Imaging Program at Stanford (MIPS), Department of Radiology, Stanford University, Stanford, CA, - - 2014
Time-over-threshold (ToT) is attractive as a method of combined timing and energy encoding in positron emission tomography (PET) due to its simplicity in implementation and readout. However, conventional single threshold ToT has a nonlinear response and generally suffers from a tradeoff between timing and energy resolution. The resulting poor performance ...
Vogiatzis Ioannis I a Faculty of Physical Education and Sports Sciences, Department of Aquatic Sports , National and Kapodistrian University of Athens , Athens , - - 2014
Abstract Olympic boardsailing is a very demanding endurance sport activity. The main reason for this phenomenon is ascribable to the fact that elite windsurfers use pumping for propulsion during sailing. Pumping is a manoeuvre in which the athlete pulls the sail rhythmically so that it acts as a wing, thus ...
Wilson Preston S PS Department of Mechanical Engineering, The University of Texas at Austin, 1 University Station C2200, Austin, Texas 78712 - - 2014
Cracking sounds emitted by coffee beans during the roasting process were recorded and analyzed to investigate the potential of using the sounds as the basis for an automated roast monitoring technique. Three parameters were found that could be exploited. Near the end of the roasting process, sounds known as "first ...
Duan Chunyang - - 2014
Photoelectrochemical (PEC) water splitting to produce H2 is a renewable method for addressing the worldwide energy consumption increasing and fossil fuels storage shrinking. In order to achieve sustainable PEC H2 production, the semiconductor electrodes should have good photo-absorption ability, proper band positions and chemical stability in aqueous condition. Different from ...
Ikeuchi Masahiro M Division of Integrated Life Sciences, Graduate School of Biostudies, Kyoto University, Kyoto, 606-8502, - - 2014
The PsbS protein plays an important role in dissipating excess light energy as heat in photosystem II (PSII). However, the physiological importance of PsbS under naturally fluctuating light has not been quantitatively estimated. Here we investigated energy allocation in PSII in PsbS-suppressed rice transformants (ΔpsbS) under both naturally fluctuating and ...
Majus D D Department of Quantum Electronics, Vilnius University, Saulėtekio Avenue 9, Building 3, LT-10222 Vilnius, - - 2014
We present a detailed experimental investigation which uncovers the nature of light bullets generated from self-focusing in a bulk dielectric medium with Kerr nonlinearity in the anomalous group velocity dispersion regime. By high dynamic range measurements of three-dimensional intensity profiles, we demonstrate that the light bullets consist of a sharply ...
Kiuchi K K 1] Graduate School of Humanities and Sciences, Ochanomizu University, Bunkyo, Tokyo, Japan [2] Clinical Research Center, National Hospital Organization Murayama Medical Center, Musashimurayama, Tokyo, - - 2014
Objective:This study aimed to examine whether, on the basis of the relationship between sensors attached on the upper limbs and energy expenditure (EE) at the time of wheelchair propulsion, there are differences in the measurement of EE depending on the sensor attachment site and whether addition of the angular velocity ...
Mooney Luke M - - 2014
Many soldiers are expected to carry heavy loads over extended distances, often resulting in physical and mental fatigue. In this study, the design and testing of an autonomous leg exoskeleton is presented. The aim of the device is to reduce the energetic cost of loaded walking. In addition, we present ...
Shimizu Y - - 2014
SUMMARY Objective :  We examined the influence of light intensity on surface free energy characteristics and dentin bond strength of dual-cure direct core build-up resin systems. Methods :  Two commercially available dual-cure direct core build-up resin systems, Clearfil DC Core Automix with Clearfil Bond SE One and UniFil Core EM ...
Zhu Zhaoyan Z Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, California 91125, USA. - - 2014
The equations for the diffusion controlled electron transfer (DCET) theory of quantum dot blinking are extended to include biexcitons. In contrast to excitons, which undego resonant light to dark transitions, the biexcitons, having a much larger total energy, undergo a Fermi's Golden rule type transfer (many acceptance states). The latter ...
Yu Chun-Ta - - 2014
Compared with conventionally grown thin InGaN wells, thick InGaN wells with digitally grown InN/GaN exhibit superior optical properties. The activation energy (48 meV) of thick InGaN wells (generated by digital InN/GaN growth from temperature-dependent integrated photoluminescence intensity) is larger than the activation energy (25 meV) of conventionally grown thin InGaN ...
Aguirre-Soto Alan - - 2014
We report the latent production of free radicals from energy stored in a redox potential through a 2e(-)/1H(+) transfer process, analogous to energy harvesting in photosynthesis, using visible-light organic photoredox catalysis (photocatalysis) of methylene blue chromophore with a sacrificial sterically-hindered amine reductant and an onium salt oxidant. This enables light-initiated ...
Ijmker Trienke - - 2014
Balance control during walking has been shown to involve a metabolic cost in healthy subjects, but it is unclear how this cost changes as a function of postural threat. The aim of the present study was to determine the influence of postural threat on the energy cost of walking, as ...
Kono Masaru M Department of Biological Sciences, Graduate School of Science, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-0033, Japan. Electronic address: - - 2014
Light energy absorbed by chloroplasts drives photosynthesis. When absorbed light is in excess, the thermal dissipation systems of excess energy are induced and the photosynthetic electron flow is regulated, both contributing to suppression of reactive oxygen species production and photodamages. Various regulation mechanisms of the photosynthetic electron flow and energy ...
Watanabe Hirobumi H *Department of Otolaryngology, New York University School of Medicine; †Department of Mechanical Engineering, Columbia University; and ‡Department of Otolaryngology, Columbia University College of Physicians and Surgeons, New York, New York, - - 2014
The round window membrane (RWM) is increasingly becoming a target for amplification using active middle ear implants. However, the current strategy of using available transducer tips may have negative consequences for the RWM. We investigated the microanatomy of the RWM to establish a basis for the design of the transducer ...
Tang Qiaochu Q State Key Laboratory of Transducer Technology, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Sciences, 865 Changning Road, Shanghai 200050, - - 2014
An electromagnetic kinetic energy harvester has been developed, which can convert ultra-low-frequency motion and vibration energy into electrical power. This harvester employs a two-stage vibratory structure to collect low-frequency kinetic energy and effectively transfer it into electric power by using a pair of high-frequency resonant generators. Non-contact magnetic repulsive force ...
Kheifets Simon S Center for Nonlinear Dynamics and Department of Physics, University of Texas at Austin, Austin, TX 78712, - - 2014
Measurement of the instantaneous velocity of Brownian motion of suspended particles in liquid probes the microscopic foundations of statistical mechanics in soft condensed matter. However, instantaneous velocity has eluded experimental observation for more than a century since Einstein's prediction of the small length and time scales involved. We report shot-noise-limited, ...
Roach Neil T NT George Washington University, - - 2014
High-speed and accurate throwing is a distinctive human behavior. Achieving fast projectile speeds during throwing requires a combination of elastic energy storage at the shoulder, as well as the transfer of kinetic energy from proximal body segments to distal segments. However, the biomechanical bases of these mechanisms are not completely ...
Kingston John J Linguistics Department, University of Massachusetts, 150 Hicks Way, 226 South College, Amherst, MA, 01003-9274, USA, - - 2014
Three experiments are reported that collectively show that listeners perceive speech sounds as contrasting auditorily with neighboring sounds. Experiment 1 replicates the well-established finding that listeners categorize more of a [d-g] continuum as [g] after [l] than after [r]. Experiments 2 and 3 show that listeners discriminate stimuli in which ...
Seifert Matthew M Department of Psychology, Florida Atlantic University, Boca Raton FL, - - 2014
Motion perception is determined by changing patterns of neural activation initiated by spatiotemporal changes in stimulus features. Motion specified by 1(st)-order motion energy entails neural patterns that are initiated by spatiotemporal changes in luminance, whereas motion specified by counterchange entails oppositely signed changes in neural activation that can be initiated ...
Broniowski Wojciech W Institute of Physics, Jan Kochanowski University, 25-406 Kielce, Poland and H. Niewodniczański Institute of Nuclear Physics PAN, 31-342 Cracow, - - 2014
We argue that relativistic nuclear collisions may provide experimental evidence of α clustering in light nuclei. A light α-clustered nucleus has a large intrinsic deformation. When collided against a heavy nucleus at very high energies, this deformation transforms into the deformation of the fireball in the transverse plane. The subsequent ...
Norman Joseph J Center for Complex Systems and Brain Sciences, Florida Atlantic University, Boca Raton, FL, USA, - - 2014
It has long been thought (e.g., Cavanagh & Mather, 1989) that first-order motion-energy extraction via space-time comparator-type models (e.g., the elaborated Reichardt detector) is sufficient to account for human performance in the short-range motion paradigm (Braddick, 1974), including the perception of reverse-phi motion when the luminance polarity of the visual ...
Jing Qingshen Q School of Materials Science and Engineering, Georgia Institute of Technology , Atlanta, Georgia 30332-0245, United - - 2014
Reciprocating motion is a widely existing form of mechanical motion in natural environment. In this work we reported a case-encapsulated triboelectric nanogenerator (cTENG) based on sliding electrification to convert reciprocating motion into electric energy. Patterned with multiple sets of grating electrodes and lubricated with polytetrafluoroethylene (PTFE) nanoparticles, the cTENG exported ...
Burwell Scott J SJ University of Minnesota, Twin Cities, USA. Electronic address: - - 2014
Amplitude deficits of the P3 event-related potential (ERP) are associated with externalizing psychopathology but little is known about the nature of underlying brain electrical activity that accounts for this amplitude reduction. We sought to understand if group differences in task-induced phase-locking in electroencephalographic (EEG) delta and theta frequencies may account ...
McCarty C A CA Department of Biomedical Science, University of Guelph, Guelph, Ontario, - - 2014
We wished to add to the existing baseline data on impact loading of the distal limb as a precursor to assessing the potential role of impact in injury and joint disease. To examine the effect of three hoof-strike conditions (toe-first, flat, heel-first) and two specimen masses (with and without a ...
Safaeepour Zahra - - 2014
Ankle characteristics vary in terms of gait phase and speed change. This study aimed to quantify the components of ankle characteristics, including quasi-stiffness and work in different gait phases and at various speeds. The kinetic and kinematic data of 20 healthy participants were collected during normal gait at four speeds. ...
Ramanan Charusheela C Division of Biophysics, Department of Physics and Astronomy, Faculty of Sciences, VU University Amsterdam, The Netherlands. Electronic address: - - 2014
Photosynthetic organisms have developed vital strategies which allow them to switch from a light-harvesting to an energy dissipative state at the level of the antenna system in order to survive the detrimental effects of excess light illumination. These mechanisms are particularly relevant in diatoms, which grow in highly fluctuating light ...
Ade Jack D JD Medical Department, Newcastle United Football Club, - - 2014
To quantify the physiological responses, time-motion characteristics and reproducibility of various speed endurance production (SEP) and speed endurance maintenance (SEM) drills. Twenty-one elite male youth soccer players completed four drills: (1) SEP 1 v 1 small-sided game (SSG), (2) SEP running drill, (3) SEM 2 v 2 SSG, (4) SEM ...
Lu Xihong X KLGHEI of Environment and Energy Chemistry, MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, Guangzhou, 510275, PR - - 2014
Oxygen-deficient α-Fe2 O3 nanorods with outstanding capacitive performance are developed and demonstrated as novel negative electrodes for flexible asymmetric supercapacitors. The asymmetric-supercapacitor device based on the oxygen-deficient α-Fe2 O3 nanorod negative electrode and a MnO2 positive electrode achieves a maximum energy density of 0.41 mW·h/cm(3) ; it is also capable ...
Baldan A M S AM Programa de Pós-Graduação em Fisioterapia, Universidade Cidade de São Paulo, São Paulo, SP, - - 2014
The aim of the present review was to examine the experimental, case-control studies that investigated the effect of light touch on postural sway in individuals with balance problems due to aging, brain lesion or other motor or sensory deficits. Articles published before the end of March of 2013 were searched ...
Fukui Kazutoshi K Faculty of Engineering, University of Fukui, 3-9-1 Bunkyo, Fukui 910-8507, - - 2014
A new bending-magnet beamline with a 2.5 m normal-incidence monochromator has been constructed to serve with a light source in the visible-vacuum-ultraviolet region for photoluminescence, transmission and reflection spectroscopies of solids at the UVSOR-III 750 MeV synchrotron radiation light source. The aim is to pave the way to establishing a beamline with ...
Akimoto Seiji S Molecular Photoscience Research Center, Kobe University, Kobe 657-8501, Japan; Japan Science and Technology Agency, CREST, Kobe 657-8501, Japan. Electronic address: - - 2014
In photosynthetic organisms, the interactions among pigment-protein complexes change in response to light conditions. In the present study, we analyzed the transfer of excitation energy from the phycobilisome (PBS) and photosystem (PS) II to PSI in the cyanobacterium Synechocystis sp. PCC 6803. After 20 min of dark adaptation, Synechocystis cells were ...
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