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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 ...
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 ...
Ferroni Lorenzo L Department of Life Sciences and Biotechnologies, University of Ferrara, Corso Ercole I d'Este 32, 44121, Ferrara, - - 2014
Evolution of vascular plants on Earth had to achieve the most favorable compromise between photosynthesis and photodamage. We analyzed representative species from two divergent lineages of vascular plants, lycophytes and euphyllophytes, with respect to the response of their photosynthesis and light-harvesting properties to increasing light intensity. In the two analyzed ...
Rochaix Jean-David JD Departments of Molecular Biology and Plant Biology, University of Geneva, 1211 Geneva, Switzerland; email: - - 2014
Photosynthetic organisms are continuously subjected to changes in light quantity and quality, and must adjust their photosynthetic machinery so that it maintains optimal performance under limiting light and minimizes photodamage under excess light. To achieve this goal, these organisms use two main strategies in which light-harvesting complex II (LHCII), the ...
Kluger David D Northwestern University Prosthetics-Orthotics Center, Dept. of Physical Medicine & Rehabilitation, Feinberg School of Medicine, 680 N Lake Shore Dr., Suite 1100, Chicago, IL 60611, - - 2014
Able-bodied individuals spontaneously adopt crouch gait when walking with induced anterior trunk flexion, but the effect of this adaptation on lower-limb kinetics is unknown. Sustained forward trunk displacement during walking can greatly alter body center-of-mass location and necessitate a motor control response to maintain upright balance. Understanding this response may ...
Orand Abbas A Department of Rehabilitation, Fujita Memorial Nanakuri Institute, Fujita Health University , Tsu , Japan - - 2014
Abstract Wavelet transform energy analyses of the mean and standard error of the electromyogram (EMG) and electroencephalogram (EEG) of eight subjects were investigated in passive movement mirror therapies with no delay (in-phase) and with delay (out-of-phase) situations in two frequency bands of 7.81-15.62 and 15.62-31.25 Hz. It was found that the ...
Wang Zeyan Z State Key Laboratory of Crystal Materials, Shandong University, China. - - 2014
Photocatalysis has attracted a lot of attention owing to its great potential to solving energy and environmental problems. Although great efforts have been made in the last few decades, the poor efficiency still fails to meet the requirement of practical applications. With the aim to improve further the photocatalytic efficiency ...
Dragavon Joe - - 2014
Bioluminescence imaging is a powerful technique that allows for deep-tissue analysis in living, intact organisms. However, in vivo optical imaging is compounded by difficulties due to light scattering and absorption. While light scattering is relatively difficult to overcome and compensate, light absorption by biological tissue is strongly dependent upon wavelength. ...
Khaldi Kais K Ecole Nationale d'Ingénieurs de Tunis, Boite Postale 37, Le Belvédère, 1002 Tunis, - - 2014
In this paper a speech denoising strategy based on time adaptive thresholding of intrinsic modes functions (IMFs) of the signal, extracted by empirical mode decomposition (EMD), is introduced. The denoised signal is reconstructed by the superposition of its adaptive thresholded IMFs. Adaptive thresholds are estimated using the Teager-Kaiser energy operator ...
Brodersen Kasper Elgetti KE Marine Biological Section, Department of Biology, University of Copenhagen, , Strandpromenaden 5, Helsingør 3000, - - 2014
The light field on coral reefs varies in intensity and spectral composition, and is the key regulating factor for phototrophic reef organisms, for example scleractinian corals harbouring microalgal symbionts. However, the actual efficiency of light utilization in corals and the mechanisms affecting the radiative energy budget of corals are underexplored. ...
Tikkanen Mikko M Molecular Plant Biology, Department of Biochemistry, University of Turku, , 20014 Turku, - - 2014
The amount of light energy that is harvested and directed to the photosynthetic machinery is regulated in order to control the production of reactive oxygen species (ROS) in leaf tissues. ROS have important roles as signalling factors that instigate and mediate a range of cellular responses, suggesting that the mechanisms ...
Taparugssanagorn Attaphongse A Wireless Information Security and Eco-Electronics Research Unit/National Electronics and Computer Technology Center, Bangkok 12120, Thailand. - - 2014
The use of a multiple input single output (MISO) transmit beamforming system using dimmable light emitting arrays (LEAs) in the form of a uniform circular array (UCA) of transmitters is proposed in this paper. With this technique, visible light communications between a transmitter and a receiver (LED reader) can be ...
Yatsui Takashi T Department of Electrical Engineering and Information Systems, School of Engineering, The University of Tokyo, Tokyo 113-8656, - - 2014
A dressed-phonon-phonon (DPP) assisted photocatalyst reaction was carried out to increase the visible light responsibility, where the photon energy of the radiation, which ranged from visible to infrared light is less than band gap energy of the photocatalyst (ZnO, 3.3 eV). The dependence of the photocurrent on excitation power indicated that ...
Coscieme Luca L Ecodynamics Group, DEEPS Department of Earth Environmental and Physical Sciences, University of Siena, Pian dei Mantellini 44, 53100, Siena, Italy, - - 2013
Night-time satellite imagery enables the measurement, visualization, and mapping of energy consumption in an area. In this paper, an index of the "sum of lights" as observed by night-time satellite imagery within national boundaries is compared with the emergy of the nations. Emergy is a measure of the solar energy ...
Fenton Leona - - 2013
Energy efficient light sources have been introduced across Europe and many other countries world wide. The most common of these is the Compact Fluorescent Lamp (CFL), which has been shown to emit ultraviolet (UV) radiation. Light Emitting Diodes (LEDs) are an alternative technology that has minimal UV emissions. This brief ...
Colbert Lisa H LH Dept. of Kinesiology, University of Wisconsin, Madison, - - 2013
This study examined the intensity of activity contributing to physical activity energy expenditure in older adults. In 57 men and women aged ≥65, total energy expenditure (TEE) was measured using doubly labeled water, and resting metabolic rate was measured using indirect calorimetry to calculate a physical activity index (PAI). Sedentary ...
Hemschemeier Anja - - 2013
In aerobes, anoxia impairs mitochondrial energy generation as well as biosynthesis and degradation of essential cell components. In a recent analysis we have shown that the unicellular green alga Chlamydomonas reinhardtii responds to anaerobiosis in the dark by significant changes of the transcriptome, which, in summary, were directed at saving ...
Praveen Vakayil K - - 2013
Let there be light, let it be white: Recent developments in the use of chromophore-based gels as scaffolds for the assembly of white-light-emitting soft materials have been significant. The main advantage of this approach lies in the facile accommodation of selected luminescent components within the gel. Excitation-energy-transfer processes between these ...
Schätti A - - 2013
In order to be able to treat mobile tumours with active, scanned proton therapy, adequate motion mitigation techniques have to be applied. Re-scanning is such an approach, where the interplay effect between tumour motion and treatment delivery is statistically smeared out. Different re-scanning methods have been used for the irradiation ...
Fedorov Vladimir Yu - - 2013
We use the theory of inhomogeneous waves to study the transmission of light in μ-near-zero metamaterials. We find the effect of all-angle collimation of incident light, which means that the vector of energy flow in a wave transmitted to a μ-near-zero metamaterial is perpendicular to the interface for any incident ...
An Shinmo - - 2013
Efficient nanofocusing of light into a gap plasmon waveguide using three-dimensional mode conversion in a strip plasmonic directional coupler is proposed. Unlike conventional nanofocusing using tapering structures, a plasmonic directional coupler converts E<sub>z</sub>-type odd mode energy into E<sub>y</sub>-type gap plasmon mode by controlling phase mismatch and gap spacing. The simulation ...
Xu Chen - - 2013
Sunlight is the most abundant energy source on this planet. However, the ability to convert sunlight into biological energy as adenosine-5'-triphosphate (ATP) is thought to be limited to chloroplasts in photosynthetic organisms. Here we show that mammalian mitochondria can also capture light and synthesize ATP when mixed with a light-capturing ...
Zhou Pingwei - - 2013
In this work, rare earth (RE) ions tri-doped YV<sub>1-x</sub>P<sub>x</sub>O<sub>4</sub>: RE<sup>3+</sup> (RE = Tm, Dy, Eu) inverse opal photonic crystals (IOPCs) were fabricated by the PMMA template method, which demonstrated efficient white light emissions under ultraviolet excitation. It is significant to observe that the chrominance of the white light could be ...
Teng Tun-Chien - - 2013
In this paper, we proposed a novel apparatus, which has very slim volume and can transfer light emitted from discrete LEDs into a uniform and ultra-collimated planar light source (UCPLS). This apparatus adopts the two-layer folded frame and two-stage CPC design so that thickness of the entire apparatus can be ...
Lee Sang Hyun - - 2013
This paper presents a distributed energy-saving lighting strategy for the arrangements of a lighting network consisting of a group of light-emitting diode (LED) lamps and users. LED lamps have a dimming support feature to meet the illuminance requirements imposed by individual users. Both groups interact with each other via visible ...
Li Hao - - 2013
Motor molecules present in nature convert energy inputs, such as a chemical fuel or incident photons of light, into directed motion and force biochemical systems away from thermal equilibrium. The ability, not only to control relative movements of components in molecules, but also and to drive their components preferentially in ...
Hu Youfan - - 2013
An unstable mechanical structure that can self-balance when perturbed is a superior choice for vibration energy harvesting and vibration detection. In this work, a suspended 3D spiral structure is integrated with a triboelectric nanogenerator (TENG) for energy harvesting and sensor applications. The newly designed vertical contact-separation mode TENG has a ...
Virr Jody Lynn - - 2013
Abstract The aim of this study was to determine the physical demands of women's rugby union match play using time-motion analysis and heart rate (HR) response. Thirty-eight premier club level female rugby players, ages 18-34 years were videotaped and HRs monitored for a full match. Performances were coded into 12 ...
Qi Dianpeng - - 2013
A bio-inspired antireflective hetero-nanojunction structure has been fabricated by the hydrothermal growth of ZnO nanorods on silicon micro-pyramids. It has been shown that this structure suppresses light reflection more effectively resulting in a high photocurrent response and good charge separation simultaneously. The strategy provides a means to enhance solar energy ...
Hoffman David P - - 2013
Azobenzenes are versatile photoswitches that find application in optical memory, light-driven motors and molecular gating. Despite many studies, the molecular details of their light induced trans to cis isomerization are still debated. To inform this discussion we probed the low frequency skeletal motions in an azobenzene derivative, 4-nitro-4'-dimethylamino-azobenzene (NDAB), with ...
Bu Yuyu - - 2013
A ZnFe2O4-ZnO nanorod array (NRA) with a three-dimensional network nanometer structure was prepared. The photoelectrochemical performance of the ZnFe2O4-ZnO NRA composite is significantly improved due to the formation of a p-n heterojunction electric field at the interface between ZnFe2O4 and ZnO, the increase of the overall utilization efficiency of incident ...
Liu Ran - - 2013
Electrophoretic motion at low potentials is facilitated by redox chemistry occurring in a supercapacitor-based electrochemcal energy storage system during charge and discharge. We show that MnO2 -modified electrodes can effectively alleviate the electrode surface polarization, the main factor that leads to inefficient electrophoresis at low voltages. A self-powered electrophoretic system ...
Robinson Philip W - - 2013
When sound reflects from an irregular architectural surface, it spreads spatially and temporally. Extensive research has been devoted to prediction and measurement of diffusion, but less has focused on its perceptual effects. This paper examines the effect of temporal diffusion on echo threshold. There are several notable differences between the ...
De Palo Giovanna - - 2013
Eukaryotic adaptation pathways operate within wide-ranging environmental conditions without stimulus saturation. Despite numerous differences in the adaptation mechanisms employed by bacteria and eukaryotes, all require energy consumption. Here, we present two minimal models showing that expenditure of energy by the cell is not essential for adaptation. Both models share important ...
Yoon Sang-Jae SJ Interdisciplinary Graduate School of Engineering Sciences, Kyushu University, Kasuga-koen 6-1, kasuga, Fukuoka 816-8580, Japan. - - 2013
To evaluate the density effects of light power and energy on the volumetric polymerization shrinkage and acoustic emission (AE) characteristics of a dental resin composite in the cavities of human teeth. Two experiments were performed at different power levels (1,000 and 4,000 mW/cm2) using a light curing unit: (1) cylindrical ...
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