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Musienko Pavel E PE Pavlov Institute of Physiology, 100034 St Petersburg, Russia, and Department of Neuroscience, Karolinska Institute, SE-17177, Stockholm, - - 2014
In quadrupeds, the most critical aspect of postural control during locomotion is lateral stability. However, neural mechanisms underlying lateral stability are poorly understood. Here, we studied lateral stability in decerebrate cats walking on a treadmill with their hindlimbs. Two destabilizing factors were used: a brief lateral push of the cat ...
Decraemer W F WF Department Biomedical Physics, University of Antwerp, CGB, Groenenborgerlaan 171, 2020, Antwerpen, Belgium, - - 2014
In previous studies, 3D motion of the middle-ear ossicles in cat and human was explored, but models for hearing research have shifted in the last few decades to smaller mammals, and gerbil, in particular, has become a popular hearing model. In the present study, we have measured with an optical ...
Feldstein Brian B Rudolf Peierls Centre for Theoretical Physics, University of Oxford, 1 Keble Road, Oxford OX1 3NP, United Kingdom and Kavli IPMU (WPI), University of Tokyo, Kashiwa 277-8568, - - 2014
The lack of new physics at the LHC so far weakens the argument for TeV scale thermal dark matter. On the other hand, heavier, nonthermal dark matter is generally difficult to test experimentally. Here we consider the interesting and generic case of hypercharged dark matter, which can allow for heavy ...
Shiell Martha M MM Montreal Neurological Institute, McGill University, Montreal, Quebec, Canada ; BRAMS: International Laboratory for Brain, Music, and Sound Research, Montreal, Quebec, Canada ; CRBLM Centre for Research on Brain, Language, and Music, Montreal, Quebec, - - 2014
In deaf people, the auditory cortex can reorganize to support visual motion processing. Although this cross-modal reorganization has long been thought to subserve enhanced visual abilities, previous research has been unsuccessful at identifying behavioural enhancements specific to motion processing. Recently, research with congenitally deaf cats has uncovered an enhancement for ...
Morimoto Takeshi T Department of Applied Visual Science, Osaka University Graduate School of Medicine, Suita, Osaka, - - 2014
Transcorneal electrical stimulation (TES) activates retinal neurons leading to visual sensations. How the retinal cells are activated by TES has not been definitively determined. Investigating the reflectance changes of the retina is an established technique and has been used to determine the mechanism of retinal activation. The purpose of this ...
Gai Yan - - 2013
Forward masking is traditionally measured with a detection task in which the addition of a preceding masking sound results in an increased signal-detection threshold. Little is known about the influence of forward masking on localization of free-field sound for human or animal subjects. Here we recorded gaze shifts of two ...
Fan Jiji - - 2013
We point out that current constraints on dark matter imply only that the majority of dark matter is cold and collisionless. A subdominant fraction of dark matter could have much stronger interactions. In particular, it could interact in a manner that dissipates energy, thereby cooling into a rotationally supported disk, ...
Frigon Alain - - 2013
During overground or treadmill walking, the stance phase and cycle durations are reduced as speed increases, whereas swing phase duration remains relatively invariant. When the speed of the left and right sides is unequal, as is the case during split-belt locomotion or when walking along a circular path, adjustments in ...
Gai Yan - - 2013
Sound localization accuracy in elevation can be affected by sound spectrum alteration. Correspondingly, any stimulus manipulation that causes a change in the peripheral representation of the spectrum may degrade localization ability in elevation. The present study examined the influence of sound duration and level on localization performance in cats with ...
Thibaudier Yann - - 2013
Despite the obvious importance of inter-girdle coordination for quadrupedal locomotion in terrestrial mammals, its organization remains poorly understood. Here, we evaluated cycle and phase durations, as well as footfall patterns of 4 intact adult cats trained to walk on a transverse split-belt treadmill that could independently control fore- and hindlimb ...
Hirohara Y - - 2013
We examined the intrinsic signals in response to grating stimuli in order to determine whether the light-evoked intrinsic signals of the retina are due to changes in the photoreceptor activities induced by the image projected on to the retina or are due to neural activities of the inner retina. The ...
Ehgoetz Martens Kaylena A - - 2013
The main objective of this study was to determine how manipulating the amount of sensory information available about the body and surrounding environment influenced freezing of gait (FOG), while walking through a doorway. It was hypothesized that the more limited the sensory information, the greater the occurrence of freezing of ...
Tollin Daniel J DJ Dept. of Physiology and Biophysics, Univ. of Colorado School of Medicine, Aurora, CO 80045, USA. - - 2013
Sound localization along the azimuthal dimension depends on interaural time and level disparities, whereas localization in elevation depends on broadband power spectra resulting from the filtering properties of the head and pinnae. We trained cats with their heads unrestrained, using operant conditioning to indicate the apparent locations of sounds via ...
Gutman Nadav - - 2012
We predict that nonlinear waveguides which support frozen light associated with a degenerate photonic band edge, where the dispersion relation is locally quartic, exhibit a tunable, all-optical switching response. The thresholds for switching are orders-of-magnitude lower than at regular band edges. By adjusting the input condition, bistability can be eliminated, ...
Yuan Wenjing - - 2012
Covalently grafting reduced graphene oxide (rGO) sheets with sulfophenyl or ethylenediamine groups can produce chemically modified graphene (CMG) for fabricating high-performance gas sensors. The NO(2) sensors based on these CMGs exhibit sensitivities 4 to 16 times higher than that of a sensor based on rGO. They also show excellent selectivity ...
Anderson Anthony Michael - - 2012
Concentrated colloidal alumina dispersions were frozen in a directional solidification apparatus that provides independent control of the freezing rate and temperature gradient. Two distinct steady-state modes of periodic ice-banding were observed in the range of freezing rates examined. For each mode, the wavelength between successive bands of segregated ice decreases ...
Ryugo David K - - 2012
Cats have among the best hearing of all mammals in that they are extremely sensitive to a broad range of frequencies. The ear is a highly complex structure that is delicately balanced in terms of its biochemistry, types of receptors, ion channels, mechanical properties, and cellular organization. Sensorineural deafness is ...
Barboza R - - 2012
By sending circularly polarized light beams onto a homeotropic nematic liquid crystal cell with a photosensitive wall, we are able to locally induce spontaneous matter vortices that remain, each, stable and trapped at the chosen location. We discuss the dual light-matter nature of the created vortices and demonstrate the ability ...
Zuleta Marcelo - - 2012
Photoinduced molecular rearrangements are important in daily events essential for life such as visual perception and photo-protection of light harvesting complexes in plants. In this study we demonstrate that similar photoarrangements appear in an analogous technological application where the device performance is controlled by chromophores in sensitized anatase TiO(2), one ...
Tong Rong - - 2012
Light is an electromagnetic radiation that can convert its energy into different forms (e.g., heat, chemical energy, and acoustic waves). This property has been exploited in phototherapy (e.g., photothermal therapy and photodynamic therapy (PDT)) and optical imaging (e.g., fluorescence imaging) for therapeutic and diagnostic purposes. Light-controlled therapies can provide minimally- ...
Blum Kfir - - 2012
In the supersymmetric framework, prior to the electroweak phase transition, the existence of a baryon asymmetry implies the existence of a Higgsino asymmetry. We investigate whether the Higgsino could be a viable asymmetric dark matter candidate. We find that this is indeed possible. Thus, supersymmetry can provide the observed dark ...
Suorsa Marjaana - - 2012
In nature, plants are challenged by constantly changing light conditions. To reveal the molecular mechanisms behind acclimation to sometimes drastic and frequent changes in light intensity, we grew Arabidopsis thaliana under fluctuating light conditions, in which the low light periods were repeatedly interrupted with high light peaks. Such conditions had ...
Pais Tiago M - - 2012
Mannosylglycerate is a compatible solute typical of thermophilic marine microorganisms that has a remarkable ability to protect proteins from thermal denaturation. This ionic solute appears to be a universal stabilizing agent, but the extent of protection depends on the specific protein examined. To understand how mannosylglycerate confers protection, we have ...
Kojima Wataru - - 2012
It is argued that animal signals may have evolved so as to manipulate the response of receivers in a way that increases the fitness of the signallers. In deceptive communication, receivers incur costs by responding to false signals. Recently, we reported that pupae of the soil-inhabiting Japanese rhinoceros beetle Trypoxylus ...
Zhao Xiaofeng - - 2012
A spatial autocorrelation analysis method is adopted to process the spatial dynamic change of industrial Chemical Oxygen Demand (COD) discharge in China over the past 15 years. Studies show that amount and intensity of industrial COD discharges are on a decrease, and the tendency is more remarkable for discharge intensity. ...
Zhang Qianqian - - 2012
Light-responsive artificial ion channels are created using self-organized TiO(2) nanotubular arrays, whose ion transport properties can be regulated by external ultraviolet light. The formation of electrostatic traps within TiO(2) nanotubes by UV light contributes to the light-regulated ion transport.
Bordone Melina P - - 2012
Light-induced damage is a widely used model to study retinal degeneration. We examined whether bacterial lipopolysaccharide (LPS) protects the retina against light-induced injury. One day before intense light exposure for 24 h, rats were intravitreally injected with LPS in one eye and vehicle in the contralateral eye. At several time ...
Kitagawa Yuichi - - 2012
We have demonstrated the presence of magneto-chiral dichroism (MChD) of chiral J-aggregates of zinc chlorins. To the best of our knowledge, this is the first observation of MChD in artificial light-harvesting antennas.
Miura Yoshimasa - - 2012
Irradiation from an artificial solar simulator that matches the relative cumulative erythema effectiveness (RCEE) of sunlight is used for in vivo sun protection factor (SPF) testing, whereas irradiation that matches the spectrum of natural sunlight is generally used for in vitro SPF testing. This study was designed to clarify whether ...
Heber Ulrich - - 2012
Can 50 years of research, performed between ignorance and the wish to know, and executed between hope, despair, satisfaction and pain, be compressed into an abstract? What has been done in more than 50 years may be expressed in four words: it was worth it. If I had another life, I would ...
Tolon Vincent - - 2012
No-take reserves are sometimes implemented for sustainable population harvesting because they offer opportunities for animals to spatially avoid harvesters, whereas harvesters can benefit in return from the reserve spillover. Here, we used the framework of predator-prey spatial games to understand how protected areas shape spatial interactions between harvesters and target ...
Hickman-Davis Judy M - - 2012
The personal protective equipment (PPE) required for entry into rodent barrier rooms often includes a hair bonnet, face mask, disposable gown, gloves, and shoe covers. Traditionally, shoe covers have been considered essential PPE for maintaining a 'clean' animal room. The introduction of microisolation caging and ventilated rack housing prompted us ...
Shimizu Toshihiko - - 2012
This paper describes a self-protective whole body motor controller to enable life-long learning of humanoid robots. In order to reduce the damages on robots caused by physical interaction such as obstacle collision, we introduce self-protective behaviors based on the adaptive coordination of full-body global reactions and local limb reflexes. Global ...
Essemine Jemâa - - 2012
The response of the heat-sensitive dgd1-2 and dgd1-3 Arabidopsis mutants depleted in the galactolipid DGDG to photoinhibition of chloroplasts photosystem II was studied to verify if there is a relationship between heat stress vulnerability due to depletion in DGDG and the susceptibility to photoinhibitory damage. Non-photochemical quenching (NPQ) is known ...
Duarte Carlos M - - 2012
The Arctic marine ecosystem contains multiple elements that present alternative states. The most obvious of which is an Arctic Ocean largely covered by an ice sheet in summer versus one largely devoid of such cover. Ecosystems under pressure typically shift between such alternative states in an abrupt, rather than smooth ...
Peng Hui-Qing - - 2012
A good harvest: Two self-assembling strategies (micellization and electrostatic attraction) and covalent capture were employed to construct a robust, inexpensive, efficient artificial light-harvesting system. The synthesis was achieved by a one-pot reaction. A high density of the antenna chromophores was achieved without self-quenching and excimer formation, thus affording extremely efficient ...
Cândido Paula Emanuela Fernandes - - 2012
The auditory channel is one of the most affected by the activity of musicians. The aim of this study was to verify the efficiency of the Monitor of Hearing In Ear regarding prevention of the hearing loss in the activity realized by musicians. This study justifies by the need to ...
Löfhede Johan - - 2012
The overall aim of our research is to develop a monitoring system for neonatal intensive care units. Long-term EEG monitoring in newborns require that the electrodes don't harm the sensitive skin of the baby, an especially relevant feature for premature babies. Our approach to EEG monitoring is based on several ...
Barnett Adam - - 2012
Although marine protected areas (MPAs) are a common conservation strategy, these areas are often designed with little prior knowledge of the spatial behaviour of the species they are designed to protect. Currently, the Coral Sea area and its seamounts (north-east Australia) are under review to determine if MPAs are warranted. ...
Wible John R - - 2012
Authoritative anatomical references depict domestic dogs and cats as having a malleus with a short rostral (anterior) process that is connected via a ligament to the ectotympanic of the auditory bulla. Similar mallei have been reported for representatives of each of the 15 extant families of Carnivora, the placental order ...
Spees Colleen K CK Health Sciences and Medical Dietetics, College of Medicine, The Ohio State University, Columbus, OH, - - 2012
To describe the physical activity patterns across levels of obesity among US adults. The frequency, intensity, and duration of physical activities were compared across obesity status in 7695 adults from NHANES, 1999-2006. Significantly more normal-weight adults engaged in moderate- and vigorous- intensity activities and for a longer duration than did ...
Naughton Lynn M LM Department of Microbiology-Immunology, Feinberg School of Medicine, Northwestern - - 2012
Specific bacteria are found in association with animal tissue. Such host-bacterial associations (symbioses) can be detrimental (pathogenic), have no fitness consequence (commensal), or be beneficial (mutualistic). While much attention has been given to pathogenic interactions, little is known about the processes that dictate the reproducible acquisition of beneficial/commensal bacteria from ...
Huang Hui - - 2011
Bismuth tungstate (Bi(2)WO(6)) has attracted great research interest as an important visible-light-responsive photocatalyst. In this paper, we report a facile hydrothermal route for the shape-controlled synthesis of micro/nanostructured Bi(2)WO(6), without adding surfactants or templates. The results show that various morphologies of Bi(2)WO(6) including coralloid spherical particles, packed nanosheets, fluffy microspheres, ...
Xiao Jinchong - - 2011
A novel compound, 5,7,14,16-tetraphenyl-8:9,12:13-bisbenzo-hexatwistacene (TBH), has been successfully synthesized through a retro-Diels-Alder reaction. Single-crystal structure analysis indicated that TBH has a twisted configuration with a torsion angle of 27.34°. The HOMO-LUMO gap of TBH calculated from the difference between the half-wave redox potentials (E(1/2) (ox) =+0.40 eV and E(1/2) (red) =-1.78 eV) ...
Karaki Fumika - - 2011
Although many organic/inorganic compounds that release nitric oxide (NO) upon photoirradiation (phototriggered caged-NOs) have been reported, their photoabsorption wavelengths mostly lie in the UV region, because XNO bonds (X=heteroatom and metal) generally have rather strong π-bond character. Thus, it is intrinsically difficult to generate organic compounds that release NO under ...
Noordeen Hilali M - - 2011
Prospective, intraoperative force measurement in consecutive lengthening procedures in a series of growing-rod patients undergoing lengthening. The purpose of this study was to measure the forces and amount of distraction over time in early onset scoliosis patients treated with growing rods. Growing rods are one of the current techniques used ...
Eiber Albrecht - - 2011
Classic theories of hearing have considered only a translational component (piston-like component) of the stapes motion as being the effective stimulus for cochlear activation and thus the sensation of hearing. Our previous study [Huber, A.M., Sequeira, D., Breuninger, C., Eiber, A., 2008. The effects of complex stapes motion on the ...
Ali Shaukat - - 2011
The zebrafish is a powerful whole animal model which is complementary to in vitro and mammalian models. It has been shown to be applicable to the high-throughput behavioral screening of compound libraries. We have analysed 60 water-soluble toxic compounds covering a range of common drugs, toxins and chemicals, and representing ...
Triantis T M - - 2011
In an attempt to face serious environmental hazards, the degradation of microcystin-LR (MC-LR), one of the most common and more toxic water soluble cyanotoxin compounds released by cyanobacteria blooms, was investigated using nitrogen doped TiO(2) (N-TiO(2)) photocatalyst, under UV-A, solar and visible light. Commercial Degussa P25 TiO(2), Kronos and reference ...
Peng Shao-En - - 2012
The endosymbiotic relationship between coral hosts and dinoflagellates of the genus Symbiodinium is critical for the growth and productivity of coral reef ecosystems. Here, synchrotron radiation-based infrared microspectroscopy was applied to examine metabolite concentration differences between endosymbiotic (within the anemone Aiptasia pulchella) and free-living Symbiodinium over the light-dark cycle. Significant ...
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