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Kerppers Ivo Ilvan II Laboratory of Neuroanatomy and Neurophysiology, Universidade Estadual do Centro-Oeste-UNICENTRO Rua Vicente Machado, 3459, CEP: 85035-180, Guarapuava, Paraná, Brazil, - - 2014
Collagen I is not only responsible for maintaining the integrity of most tissues due to its mechanical properties, but also for its active participation in the functionality of tissues because of its interaction with cells present in the extracellular matrix. The synthesis of collagen begins with tissue injury and remains ...
Hoogenkamp Henk R HR Department of Biochemistry 280, RIMLS, Radboud University Medical Center, PO Box 9101, 6500 HB Nijmegen, Netherlands. Electronic address: - - 2014
The bio-inspired engineering of tissue equivalents should take into account anisotropic morphology and mechanical properties of extracellular matrix (ECM). This especially applies to collagen fibrils, which have various, but highly defined, orientations throughout tissues and organs. There are several methods available to control the alignment of soluble collagen monomers, but ...
Puhakka P H PH Department of Applied Physics, University of Eastern Finland, PO Box 1627, FI-70211 Kuopio, Finland. Department of Clinical Neurophysiology, Kuopio University Hospital, PO Box 1777, FI-70029 Kuopio, - - 2014
Optical coherence tomography (OCT) has been applied for high resolution imaging of articular cartilage. However, the contribution of individual structural elements of cartilage on OCT signal has not been thoroughly studied. We hypothesize that both collagen and chondrocytes, essential structural components of cartilage, act as important light scatterers and that ...
Zimmerman B K BK Department of Mechanical Engineering, University of Delaware, Newark, DE, - - 2014
In temporomandibular joints (TMJs), the disc and condylar cartilage function as load-bearing, shock-absorbing, and friction-reducing materials. The ultrastructure of the TMJ disc and cartilage is different from that of hyaline cartilage in other diarthrodial joints, and little is known about their lubrication mechanisms. In this study, we performed micro-tribometry testing ...
Nishimura Tadashi T Department of Otolaryngology-Head and Neck Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, Japan. Electronic address: - - 2014
By attaching a transducer to the aural cartilage, a relatively loud sound is audible even with a negligibly small fixation force. Previous study has identified several pathways for sound transmission by means of cartilage conduction. This investigation focused on the relative contribution of direct vibration of the aural cartilage to ...
Motavalli Mostafa M Department of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, - - 2014
The mechanical behavior of bovine articular cartilage in shear was measured and related to its structure through the depth of the tissue. To make these measurements, we designed an apparatus that could apply controlled shear displacement and measure the resulting shear force on cartilage specimens. Shear displacement and shear strain ...
Ding Ziqian - - 2014
We report a systemic study of the stability of organic thin film transistors (OTFTs) both in storage and under operation. Apart from a thin polystyrene buffer layer spin-coated onto the gate dielectric, the constituent parts of the OTFTs were all prepared by vacuum evaporation. The OTFTs are based on the ...
Slane Laura Chernak LC Department of Biomedical Engineering, University of Wisconsin-Madison, WI, USA. Electronic address: - - 2014
The goal of this study was to investigate Achilles tendon tissue displacement patterns under passive and eccentric loading conditions. Nine healthy young adults were positioned prone on an examination table with their foot secured to a rotating footplate aligned with the ankle. Subjects cyclically rotated their ankle over a 25° ...
Dong Fan - - 2014
The immobilization of a photocatalyst on a proper support is pivotal for practical environmental applications. In this work, graphitic carbon nitride (g-C3N4) as a rising visible light photocatalyst was first immobilized on structured Al2O3 ceramic foam by a novel in-situ approach. The immobilized g-C3N4 was applied for photocatalytic removal of ...
Meresman Yonatan Y University of Haifa, - - 2014
Some wingless insects possess aerial righting reflexes, suggesting that adaptation for controlling body orientation while falling through air could have preceded flight. When threatened by a predator, wingless pea aphids (Acyrthosiphon pisum) may drop off their host plant and assume a stereotypic posture that rotates them in midair to land ...
Sandström Andreas A The Organic Photonics and Electronics Group, Department of Physics, Umeå University, SE-901 87, Umeå, Sweden; LunaLEC AB, Tvistevägen 47, PO Box 7970, SE-907 19, Umeå, - - 2014
Light-emitting electrochemical cells featuring areas of 200 cm(2) , multicolored patterns, and light emission from 3D surfaces are fabricated in air by L. Edman and co-workers on page 4975 using a "spray-sintering" process developed for the purpose. Using a standard airbrush, light can be added onto a wide variety of ...
Perez Ronen - - 2014
Abstract Background: Active middle ear implants such as the vibrant sound bridge (VSB) have been placed on the round window (RW) in patients with conductive or mixed hearing loss, with satisfactory hearing results. Several observations show that the mechanism of RW stimulation is not completely understood. The purpose of the ...
Cao Renping R Departments of Physics, Jinggangshan University, Ji'an, 343009, - - 2014
Red-emitting Mg4 Nb2 O9 :Eu(3+) phosphor is synthesized via a solid-state reaction method in air, and its crystal structure and luminescence are investigated. The phosphor can be excited efficiently by ~ 395 nm light, coupled well with a ~ 395 nm near-ultraviolet chip and emits red light at ~ 613 nm with sharp spectra due to (5) D0  → (7) ...
Mendes José João Baltazar JJ Center for Interdisciplinary Research Egas Moniz, CiiEM, - - 2014
Exposure to noise rich in low frequency components induces abnormal proliferation of extracellular matrix and collagens. The previous studies have shown alterations in the periodontium of both humans and animals. Our objective was the evaluation of collagens I, IV and V of the periodontium of Wistar rats exposed to noise ...
Koju Vijay - - 2014
We demonstrate a slow light configuration that makes use of Bloch Surface Waves as an intermediate excitation in a double-prism tunneling configuration. This method is simple compared to the more usual technique for slowing light using the phenomenon of electromagnetically induced transparency in atomic gases or doped ionic crystals operated ...
Kim Su Jin - - 2014
We investigated GaN-based vertical light-emitting diodes (VLEDs) with periodic and conical nanopillar arrays (CNAs) to improve the light-output efficiency. We found that a 470 nm diameter and 0.8-0.9 μm height increased the light output, and the devices suffered no significant electrical property degradations. The light-output power was 272% and 5.1% greater than ...
Storey Karyn K KK * Department of Communication Disorders and Deaf Education, Utah State University , Logan , - - 2014
Objective: The aim of this study was to determine the effect of ambient noise on the accuracy of thresholds obtained using the KUDUwave portable clinical audiometer as compared to those obtained using a GSI-61 clinical audiometer in a sound booth. Design: Pure-tone air conduction thresholds were obtained in three conditions: ...
Schittny Robert R Institute of Applied Physics, Karlsruhe Institute of Technology (KIT), D-76128 Karlsruhe, Germany. DFG-Center for Functional Nanostructures (CFN), Karlsruhe Institute of Technology (KIT), D-76128 Karlsruhe, - - 2014
In vacuum, air, and other surroundings supporting ballistic light propagation according to Maxwell's equations, invisibility cloaks which are macroscopic, three-dimensional, broadband, passive, and that work for all directions and polarizations of light, are not consistent with the laws of physics. We show that the situation is different for surroundings leading ...
Kuo Shou-Yi SY Department of Electronic Engineering, Chang Gung University, 259 Wen-Hwa 1st Road, Kwei-Shan, Taoyuan 333, Taiwan. - - 2014
In the article, a study of sub-wavelength grating (SWG) nanostructures for broadband and omni-directional anti-reflection coatings (ARCs) on Cu2ZnSnS4 (CZTS) solar cells using the rigorous coupled-wave analysis (RCWA) method is presented. Various SWG nanostructures of different shapes and periodic geometry on CZTS solar cells are discussed in detail. The optimized ...
Liu Peng - - 2014
Although the ventilation system is widely employed in the operating theater, a strictly sterile surgical environment still cannot be ensured because of laminar disturbance, which is mainly caused by the surgical lighting system. Abandoning traditional products, we propose an LED surgical lighting system, which can alleviate the laminar disturbance and ...
Ortega-Jimenez Victor Manuel VM Department of Biology, University of North Carolina at Chapel Hill, Chapel Hill, NC 27599, USA. Department of Integrative Biology, University of California, Berkeley, CA 94720, - - 2014
Vertical vortex systems such as tornadoes dramatically affect the flight control and stability of aircraft. However, the control implications of smaller scale vertically oriented vortex systems for small fliers such as animals or micro-air vehicles are unknown. Here we examined the flapping kinematics and body dynamics of hawkmoths performing hovering ...
Sandström Andreas A The Organic Photonics and Electronics Group, Department of Physics, Umeå University, SE-901 87, Umeå, Sweden; LunaLEC AB, Tvistevägen 47, PO Box 7970, SE-907 19, Umeå, - - 2014
Light-emitting electrochemical cells, featuring uniform and efficient light emission over areas of 200 cm(2) , are fabricated under ambient air with a for-the-purpose developed "spray-sintering" process. This fault-tolerant fabrication technique can also produce multicolored emission patterns via sequential deposition of different inks based on identical solvents. Significantly, additive spray-sintering using ...
Ci Zhipeng Z Department of Materials Science, School of Physical Science and Technology, Lanzhou University, Lanzhou 730000, China. - - 2014
A series of Mg2-xAl4Si5O18:xDy(3+) (0 ≤ x ≤ 0.18) samples were synthesized, for the first time, by a solid state method both in a reducing atmosphere and in air. XRD, diffuse reflectance spectra, excitation spectra, emission spectra, decay times and thermal quenching were used to investigate the structure, photoluminescence, energy ...
Bittencourt L L Laboratório de Mamíferos Aquáticos e Bioindicadores Profª Izabel Gurgel (MAQUA), Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, Brazil; Programa de Pós-Graduação em Oceanografia, Universidade do Estado do Rio de Janeiro, Rua São Francisco Xavier, 524, Maracanã, Rio de Janeiro, Brazil. Electronic address: - - 2014
Underwater noise pollution has become a major concern in marine habitats. Guanabara Bay, southeastern Brazil, is an impacted area of economic importance with constant vessel traffic. One hundred acoustic recording sessions took place over ten locations. Sound sources operating within 1km radius of each location were quantified during recordings. The ...
Kotsimbos Tom T Central Clinical School, Monash University, Melbourne, Victoria and Dept Allergy, Immunology and Respiratory Medicine, Alfred Hospital, Melbourne, Victoria, - - 2014
Witches in Flight is a thinly veiled allegory with striking imagery in which myth and reality are intimately intertwined with the absence and presence of reason, respectively. A floating formation of three dunces-hat wearing warlocks actively torments a naked man in mid-air as he is carried away. The warlocks and ...
Shimokura Ryota R Department of Otorhinolaryngology, Head and Neck Surgery, Nara Medical University, 840 Shijo-cho, Kashihara, Nara 634-8522, - - 2014
Sound information is known to travel to the cochlea via either air or bone conduction. However, a vibration signal, delivered to the aural cartilage via a transducer, can also produce a clearly audible sound. This type of conduction has been termed "cartilage conduction." The aural cartilage forms the outer ear ...
Korger Jan J Max Planck Institute for the Science of Light, 91058 Erlangen, Germany and Institute for Optics, Information and Photonics, University Erlangen-Nuremberg, 91058 Erlangen, - - 2014
The spin Hall effect of light (SHEL) is the photonic analogue of the spin Hall effect occurring for charge carriers in solid-state systems. This intriguing phenomenon manifests itself when a light beam refracts at an air-glass interface (conventional SHEL) or when it is projected onto an oblique plane, the latter ...
Geisler Jonathan H JH Department of Anatomy, New York Institute of Technology College of Osteopathic Medicine, Northern Boulevard, Old Westbury, New York 11568, - - 2014
Odontocetes (toothed whales, dolphins and porpoises) hunt and navigate through dark and turbid aquatic environments using echolocation; a key adaptation that relies on the same principles as sonar. Among echolocating vertebrates, odontocetes are unique in producing high-frequency vocalizations at the phonic lips, a constriction in the nasal passages just beneath ...
Sills Jillian M JM Department of Ocean Sciences, University of California at Santa Cruz, 100 Shaffer Road, Santa Cruz, CA 95060, - - 2014
Spotted seals (Phoca largha) inhabit Arctic regions that are facing both rapid climate change and increasing industrialization. While little is known about their sensory capabilities, available knowledge suggests that spotted seals and other ice seals use sound to obtain information from the surrounding environment. To quantitatively assess their auditory capabilities, ...
Alonso Rodrigo R Department of Physics, FCEyN, University of Buenos Aires, Ciudad Universitaria, Pab I, cp 1428, Buenos Aires, - - 2014
Frequency modulation is a salient acoustic feature of birdsong. Its control is usually attributed to the activity of syringeal muscles, which affect the tension of the labia responsible for sound production. We use experimental and theoretical tools to test the hypothesis that for birds producing tonal sounds such as domestic ...
Koizumi Toshizo T Department of Otorhinolaryngology and Head & Neck Surgery, Nara Medical University, 840 shijo-cho, Kashihara, Nara 634-8522, - - 2014
Sounds at frequencies of >24-kHz are classified as ultrasound which cannot be heard by humans if presented by air conduction, but can be perceived if presented by bone conduction. Some research studies involving ultrasonic hearing have reported that tinnitus is masked by bone-conducted ultrasound (BCU). However, little is known about ...
Kheirbek Iyad I New York City Department of Health and Mental Hygiene, Bureau of Environmental Surveillance and Policy, 125 Worth Street, CN34E, New York, NY, 10013, USA, - - 2014
Exposure to environmental noise from traffic is common in urban areas and has been linked to increased risks of adverse health effects including cardiovascular disease. Because traffic sources also produce air pollutants that increase the risk of cardiovascular morbidity, associations between traffic exposures and health outcomes may involve confounding and/or ...
Chakraborty Ashok Kumar AK Department of Applied Chemistry and Chemical Technology, Islamic University, Kushtia-7003, Bangladesh. Electronic address: - - 2014
A nanoheterojunction composite photocatalyst Bi2O3/TiO2 working under visible-light (λ ⩾ 420 nm) was prepared by combining two semiconductors Bi2O3 and TiO2 varying the Bi2O3/TiO2 molar ratio. Maleic acid was employed as an organic binder to unite Bi2O3 and TiO2 nanoparticles. The SEM, TEM, XRD and diffuse reflectance spectra were utilized ...
Ruser Andreas A Institute for Terrestrial and Aquatic Wildlife Research, University of Veterinary Medicine Hannover, Foundation, Büsum, Schleswig-Holstein, - - 2014
In-air anthropogenic sound has the potential to affect grey seal (Halichoerus grypus) behaviour and interfere with acoustic communication. In this study, a new method was used to deliver acoustic signals to grey seals as part of an in-air hearing assessment. Using in-ear headphones with adapted ear inserts allowed for the ...
La Scaleia Barbara B Laboratory of Neuromotor Physiology, IRCCS Santa Lucia Foundation, Rome, - - 2014
It is known that humans tend to misjudge the kinematics of a target rolling down an inclined plane. Because visuomotor responses are often more accurate and less prone to perceptual illusions than cognitive judgments, we asked the question of how rolling motion is extrapolated for manual interception or drawing tasks. ...
Luers J C JC Department of Otorhinolaryngology, Head and Neck Surgery, University of Cologne, Kerpener Str. 62, Building 23, 50924, Cologne, Germany, - - 2014
A dehiscence of the superior semicircular canal is said to be responsible for a number of specific and unspecific ear symptoms and possible a conductive hearing loss of up to 40 dB. As in vivo a dehiscence would not be opened against air, but is naturally patched with dura and the ...
- - 2014
[This corrects the article DOI: 10.1371/journal.pone.0053799.].
Raicevich Saša S ISPRA - National Institute for Environmental Protection and Research, Chioggia, - - 2014
This study is aimed at assessing the effects of multiple stressors (thermal shock, fishing capture, and exposure to air) on the benthic stomatopod Squilla mantis, a burrowing crustacean quite widespread in the Mediterranean Sea. Laboratory analyses were carried out to explore the physiological impairment onset over time, based on emersion ...
Barbu-Roth Marianne M Laboratoire Psychologie de la Perception, Université Paris Descartes-UMR 8158 CNRS, 45 Rue des Saints Pères, 75006, Paris, France. - - 2013
To shed further light on the perceptual regulation of newborn stepping, we compared neonatal air stepping in response to optic flows simulating forward or backward displacement with stepping forward on a surface. Twenty-two 3-day-olds performed four 60 s trials in which they stepped forward on a table (Tactile) or in the ...
Rodgers Arthur - - 2013
Explosions near the Earth's surface excite both atmospheric overpressure and seismic ground motions. The amplitudes of air-blast (and hence acoustic/infrasound) overpressures and seismic motions depend on the explosive yield as well as the height-of-burst (HOB, for above ground emplacement) or depth-of-burial (DOB, for buried emplacement). We present analysis of air-blast ...
Lohrasbipeydeh Hannan - - 2013
The acoustic signal generated by vibrating air bubbles injected in water allows for the passive detection of underwater sources such as divers and gas leaking from pipes. In this paper, an experimental analysis of the time and frequency characteristics of these signals is presented. The decaying acoustic signal of a ...
Wowk Roman - - 2013
Electronic sound masking, when properly implemented, can be an effective tool for introducing background noise in occupied spaces, which is a key factor of speech privacy. Mechanical ventilation systems generally cannot be relied upon to provide the consistent and appropriate levels of background noise that sound masking systems are capable ...
Swanepoel De Wet DW Department of Communication Pathology, University of Pretoria, South Africa; Ear Sciences Centre, School of Surgery, University of Western Australia, Nedlands, Australia; Ear Science Institute Australia, Subiaco, - - 2013
Purpose: To validate diagnostic pure-tone audiometry in schools without a sound-treated environment using an audiometer that incorporates insert earphones covered by circumaural earcups and real-time environmental noise monitoring. Research Design: A within-subject repeated measures design was employed to compare air (250 to 8000 Hz) and bone (250 to 4000 Hz) ...
Faytak Matthew - - 2013
I present evidence for a natural class of strident vowels characterized by significant high-frequency energy caused by turbulent airflow. This turbulent airflow is not incidental to a narrow articulatory "tube," as is common for high vowels (Klatt 1975, Ohala and Solé 2010). Rather, all share an acoustic signal consistent with ...
Zicari Massimo - - 2013
This article investigates the relationship between the shape of the mouthpiece and its acoustical properties in brass instruments. The hypothesis is that not only different volumes but also particular cup shapes affect the embouchure and the tone quality in both a physical and perceivable way. Three professional trumpet players were ...
Aliev Ali E - - 2013
The application of solid-state fabricated carbon nanotube sheets as thermoacoustic (TA) projectors is extended from air to underwater applications. Due to non-resonant sound generation, the emission spectrum of nanotube sheets in air or underwater varies smoothly over a wide frequency range, 1-10(5) Hz. Encapsulating the nanotube sheet projectors using inert ...
Bellmann Michael A - - 2013
For the offshore wind farm Borkum West II in the German North Sea the Noise Mitigation System (NMS) "Big Bubble Curtain" was used during pile driving activities. Within this project systematically variations of different influencing factors on noise reductions such as air volume, nozzle hose sizes, distance of nozzle hoses, ...
Sweitzer Glenn E - - 2013
Marching band performer responses are gathered to compare how well each performer hears: (1) oneself playing; (2) others playing the same part and instrument; and (3) others playing different parts, by instrument. The measurement protocol is repeated in an indoor purpose-built band rehearsal venue with adjustable sound diffusive vs absorptive ...
Prascevic Momir R - - 2013
The environmental noise level represents one of the key factors of life quality in urban areas of modern cities. A continuous monitoring of the noise levels and the analysis of results have become a necessity when we discuss a possible recovery of those areas with high levels of noise pollution, ...
Loupa G - - 2013
An indoor environmental quality survey was conducted in a small private automotive repair shop during May 2009 (hot season) and February 2010 (cold season). It was established that the detached building, which is naturally ventilated and lit, had all the advantages of the temperate local climate. It provided a satisfactory ...
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