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Gao Peng P School of Civil and Environmental Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798, - - 2014
The nanostructures of TiO2 significantly affect its photocatalytic activity. In this work, various TiO2 nanostructures have been successfully synthesized, including one-dimensional (1D) TiO2 nanotube, 1D TiO2 nanowire, three-dimensional (3D) TiO2 sphere assembled by nanoparticles (TiO2 sphere-P) and 3D TiO2 sphere assembled by nanosheets (TiO2 sphere-S). The results of photodegradation activity ...
Yang Xiaoyan - - 2014
Dark count rate is one of the key parameters limiting the performance of the superconducting nanowire single photon detector (SNSPD). We have designed a multi-layer film bandpass filter that can be integrated onto the SNSPD to suppress the dark counts contributed by the stray light and blackbody radiation of the ...
Khan Mohammad Mansoob MM School of Chemical Engineering, Yeungnam University, Gyeongsan-si, Gyeongbuk 712-749, South - - 2014
Ag@CeO2 nanocomposites were synthesized by a biogenic and green approach using electrochemically active biofilms (EABs) as a reducing tool. The as-synthesized Ag@CeO2 nanocomposites were characterized and used in antimicrobial, visible light photocatalytic and photoelectrode studies. The Ag@CeO2 nanocomposites showed effective and efficient bactericidal activities and survival test against Escherichia coli ...
Zweifel Claudio C Institute for Food Safety and Hygiene, Vetsuisse Faculty University of Zurich, Winterthurerstrasse 272, 8057 Zurich, Switzerland. Electronic address: - - 2014
Cattle carcasses from two abattoirs were examined at selected stages of slaughter (skinning, evisceration, trimming, washing, blast chilling) for aerobic colony counts (ACC) and Enterobacteriaceae. At each stage and abattoir, 50 carcasses were sampled by swabbing at the neck, brisket, flank and rump. After skinning, average ACC on carcasses was ...
Thode Aaron M - - 2014
Annual federal stock assessment surveys for Alaskan sablefish also attempt to measure sperm whale depredation by quantifying visual evidence of depredation, including lip remains and damaged fish. A complementary passive acoustic method for quantifying depredation was investigated during the 2011 and 2012 survey hauls. A combination of machine-aided and human ...
Valev V K VK NanoPhotonics Centre, Cavendish Laboratory, Department of Physics, University of Cambridge, J. J. Thomson Avenue, Cambridge, CB3 0HE, - - 2014
Circularly polarized light is incident on a nanostructured chiral meta-surface. In the nanostructured unit cells whose chirality matches that of light, superchiral light is forming and strong optical second harmonic generation can be observed.
Shmakov Sergey S Institute of Molecular Genetics, Russian Academy of Sciences, Moscow, 123182, - - 2014
During the process of prokaryotic CRISPR adaptation, a copy of a segment of foreign deoxyribonucleic acid referred to as protospacer is added to the CRISPR cassette and becomes a spacer. When a protospacer contains a neighboring target interference motif, the specific small CRISPR ribonucleic acid (crRNA) transcribed from expanded CRISPR ...
Gelsinger S L SL Department of Animal Science, Pennsylvania State University, University Park - - 2014
Ultraviolet light is being employed for bacterial inactivation in milk for calves; however, limited evidence is available to support the claim that UV light effectively inactivates bacteria found in milk. Thus, the objective of this observational study was to investigate the efficacy of on-farm UV light treatment in reducing bacteria ...
Hakimiha Neda N Laser Research Center of Dentistry, School of Dentistry, Tehran University of Medical Sciences, Tehran, - - 2014
Streptococcus mutans is the main etiological agent for dental caries. Recently, photodynamic therapy (PDT) has been introduced as a new modality in bacterial decontamination. Objective: This in vitro study was carried out to evaluate the susceptibility of Streptococcus mutans to antibacterial PDT using two different photosensitizers and light sources. Material ...
Popoff S M SM Department of Applied Physics, Yale University, New Haven, Connecticut 06511, - - 2014
We demonstrate order of magnitude coherent control of total transmission of light through random media by shaping the wave front of the input light. To understand how the finite illumination area on a wide slab affects the maximum values of total transmission, we develop a model based on random matrix ...
Cendrowski Krzysztof K Centre of Knowledge Based Nanomaterials and Technologies, Institute of Chemical and Environment Engineering, West Pomeranian University of Technology Szczecin, Szczecin, Poland, - - 2014
In this paper, we study synthesis and characteristics of mesoporous silica nanotubes modified by titanium dioxide, as well as their antimicrobial properties and influence on mitochondrial activity of mouse fibroblast L929. Nanocrystalized titania is confined in mesopores of silica nanotubes and its light activated antibacterial response is revealed. The analysis ...
Reis Marco T MT Spinal Biomechanics Laboratory, Barrow Neurological Institute, St. Joseph's Hospital and Medical Center, Phoenix, - - 2014
A new anchored cervical interbody PEEK spacer was devised that uses only 2 integrated variable angle screws diagonally into the adjacent vertebral bodies instead of the established device that uses 4 diagonal fixed-angle screws. To compare in vitro the stability provided by the new 2-screw interbody spacer to that of ...
Roine Irmeli I From the *University Diego Portales, Santiago, Chile; †Children's Hospital, Helsinki University Central Hospital, Helsinki University, Helsinki, Finland; ‡Pediatric Hospital David Bernardino, Luanda, Angola; §National Institute for Health and Welfare; ¶Department of Otorhinolaryngology, Audiology Section; and ‖Department of Otorhinolaryngology, Helsinki University Central Hospital, Helsinki University, Helsinki, - - 2014
Hearing loss from childhood bacterial meningitis is believed to develop early and have little tendency for recovery. We performed serial hearing evaluations in a large number of children with bacterial meningitis in Luanda, Angola to clarify if, and how often, the result changed. Children with confirmed bacterial meningitis and hearing ...
Clemes Stacy A SA From the School of Sport, Exercise and Health Sciences (Dr Clemes), Loughborough University, Loughborough, Leicestershire, United Kingdom; MoveLab (Dr O'Connell); Physical Activity and Exercise Research, Faculty of Medical Sciences, Newcastle University, Newcastle upon Tyne, United Kingdom; and Diabetes Research Centre (Dr Edwardson), University of Leicester, Leicester General Hospital, Leicester, Leicestershire, United - - 2014
To examine objectively determined sedentary behavior and physical activity (PA) during and outside working hours in full-time office workers. A total of 170 participants wore an ActiGraph GT1M accelerometer for 7 days. Time spent sedentary (<100 counts/min), in light-intensity PA (100 to 1951 counts/min), and moderate-to-vigorous PA (≥1952 counts/min) was ...
Xu Ping - - 2014
Based on the backlight module (BLM) with an integrated micro-optical light guide plate (MOLGP) that we proposed [Opt. Express21, 20159 (2013)], an optical model that maps the relationship between the distribution of microprisms on the bottom surface of the integrated MOLGP and the luminance of the output light is established ...
Paschoal Marco Aurelio MA 1 Department of Pediatric Dentistry, Araraquara Dental School, UNESP-Univ Estadual Paulist ,a, Araraquara, SP, Brazil - - 2014
Abstract Objective: Investigate the photodynamic antimicrobial effect by the combination of a novel noncoherent broad spectrum visible light and low concentrations of curcumin and toluidine blue over suspensions of Streptococcus mutans. Background data: Long illumination times to activate photosensitizers (PS) and the use of high concentrations of these drugs in ...
Schlur Laurent L Institut de Physique et Chimie des Matériaux de Strasbourg IPCMS, UMR 7504, CNRS-ECPM-Université de Strasbourg, 23 rue du loess BP 43 67034 Strasbourg cedex 2, - - 2014
Escherichia coli abatement was studied in liquid phase under visible light in the presence of two commercial titania photocatalysts, and of Fe- and Al-doped titania samples prepared by high energy ball-milling. The two commercial titania photocatalysts, Aeroxide P25 (Evonik industries) exhibiting both rutile and anatase structures and MPT625 (Ishihara Sangyo ...
Magaraci Michael S MS Department of Bioengineering, University of Pennsylvania , Philadelphia, Pennsylvania 19104, United States of - - 2014
By delivering payloads in response to specific exogenous stimuli, smart bacterial therapeutics have the potential to overcome many limitations of conventional therapies, including poor targeting specificity and dosage control in current cancer treatments. Although not yet explored as a trigger for bacterial drug delivery, light is an ideal induction mechanism ...
Neumann Silke S Zentrum für Molekulare Biologie der Universität Heidelberg (ZMBH), DKFZ-ZMBH Alliance, University of Heidelberg, Heidelberg, Baden-Württemberg, - - 2014
Adaptability is an essential property of many sensory systems, enabling maintenance of a sensitive response over a range of background stimulus levels. In bacterial chemotaxis, adaptation to the preset level of pathway activity is achieved through an integral feedback mechanism based on activity-dependent methylation of chemoreceptors. It has been argued ...
Birmpa Angeliki A 0000-0002-8193-6024 Environmental Microbiology Unit, Department of Public Health, Medical School, University of Patras, Rio, 26500 Patras, - - 2014
The aim of the current study was to evaluate the effectiveness of three nonthermal light technologies (NUV-Vis, continuous UV, and HILP) on their ability to inactivate Escherichia coli K12 and Listeria innocua.  E. coli K12 was selected as a representative microorganism for the enterohaemorrhagic foodborne pathogen E. coli O157:H7 and L. ...
Tsuji Isamu I Biomolecular Research Laboratories Pharmaceutical Research Division, Takeda Pharmaceutical Company Limited, 26-1, Muraoka-Higashi 2-chome, Fujisawa, Kanagawa, 251-8555, - - 2014
LIGHT (TNFSF14, CD258) is a member of the tumor necrosis factor (TNF) ligand superfamily, which is involved in innate and adaptive immune responses as well as in regulation of cell survival and proliferation. LIGHT forms a membrane-anchored homotrimeric complex on the cell surface and is often processed as a soluble ...
Paul E C EC Instituto de Física, Universidade Federal do Rio de Janeiro, Caixa Postal 68528, Rio de Janeiro, RJ 21941-972, - - 2014
We demonstrate the use of a phase-only spatial light modulator for the measurement of transverse spatial distributions of coincidence counts between twin photon beams, in a fully automated fashion. This is accomplished by means of the polarization dependence of the modulator, which allows the conversion of a phase pattern into ...
Giorgi Maria Cecília Caldas MC Department of Restorative Dentistry Piracicaba Dental School, University of Campinas, Piracicaba-SP, - - 2014
This study analyzed the influences of the light-activation protocol and softening test on the degree of conversion (DC) and Knoop Hardness (KHN) of a microhybrid resin composite. Filtek Z250 (3M ESPE) was light-activated with a third-generation light-emitting diode (Valo Ultradent) by three protocols - standard, high power, and plasma emulation ...
Bhatt Jay M JM University Voice and Swallowing Center, Department of Otolaryngology-Head and Neck Surgery, University of California at Irvine Medical Center, Irvine, California, - - 2013
The effectiveness of a Cidex-based decontamination protocol was analyzed for its effectiveness in cleaning various components of a flexible fiberoptic laryngoscope (FFL), including the handle, eyepiece, and detachable light cable. A random microbiological sampling and aerobic bacterial culture analysis of 6 FFL eyepieces, 6 FFL driver handles, and 5 light ...
Rudolph Maxwell L - - 2013
arising from C. P. Conrad, B. Steinberger & T. H. Torsvik 498, 479-482 (2013)The African and Pacific large low-shear-velocity provinces (LLSVPs) at present dominate the structure of the Earth's lowermost mantle, but there is considerable debate as to whether these structures have remained fixed throughout geologic time or whether they ...
Conrad Clinton P - - 2013
replying to M. L. Rudolph & S. Zhong 503, http://dx.doi.org/10.1038/nature12792 (2013)We thank Rudolph and Zhong for their Comment, which allows us to highlight important aspects of our original Letter. In particular, they have provided an example of plate motions at 300 million years (Myr) ago (see right column of figure ...
Kramer B - - 2013
The application of broad spectrum intense light pulses is an innovative non-thermal technology for the decontamination of packaging materials, liquids or foodstuffs. The objective of this study was the fundamental investigation of the cellular impact of a pulsed light treatment on Listeria innocua and Escherichia coli. Flow cytometry in combination ...
Talebian Nasrin - - 2013
The practical use of visible-light for bactericide treatment has been established by tin oxide nanostructures synthesized using a surfactant-assisted solvothermal method. Anionic (sodium n-dodecyl sulfate, SDS), cationic (cetyltrimethyl ammonium bromide, CTAB) and non-ionic (Tritron X-100) surfactants were used as morphology controlling agents. The as-synthesized nanoparticles are characterized by X-ray powder ...
Huang Wentao W J. C. Wu Center for Aerodynamics and School of Aeronautics and Astronautics, Shanghai Jiao Tong University, - - 2013
A homogeneous thin plate often flutters while falling through a fluid under gravity. The center of gravity of the plate moves back-and-forth horizontally and the plate tilting angle oscillates symmetrically from the horizontal. Here we show that such a scenario is qualitatively changed for a plate with noncoinciding centers of ...
Buchholtz Emily A - - 2013
Serially homologous systems with high internal differentiation frequently exhibit meristic constraints, although the developmental basis for constraint is unknown. Constraints in the counts of the cervical and lumbosacral vertebral series are unique to mammals, and appeared in the Triassic, early in their history. Concurrent adaptive modifications of the mammalian respiratory ...
Gu Shao-Bin SB College of Food and Bioengineering, Henan University of Science and Technology, Luoyang, People's Republic of - - 2013
It is undeniable that environmental sonic vibration can affect our emotions and mood, but so far the study of physical stimuli provoked by audible wave on single cells has been rarely concerned. To investigate the response of E. coli to audible wave exposure, the growth status and alterations in antioxidant ...
Tubby Sarah - - 2013
Antibiotic therapy can select for small colony variants of Staphylococcus aureus that are more resistant to antibiotics and can result in persistent infections, necessitating the development of more effective antimicrobial strategies to combat small colony variant infections. Photodynamic therapy is an alternative treatment approach which utilises light in combination with ...
Murray Alasdair R J - - 2013
The acoustic transmittance of two closely spaced solid plates, each perforated with a square array of cylindrical holes, exhibits a band of near-perfect acoustic attenuation originating from hybridization between a resonance in the gap separating the plates and pipe resonances in the holes. Displacement of one plate relative to the ...
Maisak Matthew S - - 2013
The extraction of directional motion information from changing retinal images is one of the earliest and most important processing steps in any visual system. In the fly optic lobe, two parallel processing streams have been anatomically described, leading from two first-order interneurons, L1 and L2, via T4 and T5 cells ...
Azimzadehirani Maryam - - 2013
TiO2-based photocatalysts are seen as the most common agents for the photodegradation of bacteria. In this study, AgCl/TiO2, hydroxyapatite(Hp)/AgCl/TiO2, AgI/TiO2, and Hp/AgI/TiO2 were prepared by the deposition-precipitation method on P25 TiO2 nanoparticles and were characterized by XRD, SEM, FT-IR, EDX and BET methods. The prepared composites showed high efficiency for ...
Araújo N C - - 2013
Photodynamic therapy (PDT) is a technique that involves the activation of photosensitizers by light in the presence of oxygen, resulting in the production of reactive radicals that are capable of inducing cell death. The present study evaluated the susceptibility of Streptococcus mutans and Lactobacillus acidophilus to PDT grown as multi-species ...
Aqeel Yousuf - - 2013
In this study, Acanthamoeba castellanii was cultivated under different stress conditions to induce possible encystation. The morphological and histological properties were analysed by light and electron microscopy as well as cyst-specific staining. The findings revealed that cysts prepared through liquid medium using higher osmolarity as a trigger (10% glucose with ...
Zhou Changfang - - 2013
Isopentenyl diphosphate (IDP) and its isomer dimethylallyl diphosphate (DMADP) are building units for all isoprenoids, thus intracellular pool sizes of IDP and DMADP play important roles in living organisms. Several methods have been used to quantify the amount of DMADP or the combined amount of IDP plus DMADP but measuring ...
Huang Liyi - - 2013
Background: Antimicrobial photodynamic therapy uses photosensitizers designed to bind to microorganisms and generate reactive oxygen species when illuminated with visible light. Materials & method: We synthesized a highly water-soluble [70]fullerene monoadduct, C70[>M(C3N6(+)C3)2]-(I(-))10 (LC17), and bisadduct, C70[>M(C3N6(+)C3)2][>M(C3N6C3)2] (LC18), both with a well-defined decacationic quaternary ammonium iodide moiety with ten positive charges ...
Horner Douglas G DG Indiana University School of Optometry, Bloomington, Indiana 47405, USA. - - 2013
To develop perimetric stimuli that are resistant to the effects of peripheral defocus. One eye each was tested on subjects free of eye disease. Experiment 1 assessed spatial frequency, testing 12 subjects at eccentricities from 2 to 7 degrees using blur levels from 0 to 3 diopters (D) for two ...
Arteaga Oriol - - 2013
In general the transmission of polarized light through a homogeneous depolarizing sample has motion-reversal symmetry because the response remains the same for light traveling in the opposite direction. As a consequence, the optical properties of a sample, characterized by the differential Mueller matrix, must be invariant upon motion reversal. This ...
McKenzie Karen - - 2013
Attachment of bacteria to surfaces and subsequent biofilm formation remains a major cause of cross contamination capable of inducing both food related illness and nosocomial infections. Resistance to many current disinfection technologies means facilitating their removal is often difficult. The aim of this study was to investigate the efficacy of ...
Guffey J Stephen - - 2013
Abstract Objective: The aim of this study was to determine whether Staphylococcus aureus could develop a resistance to 405 nm light. Background data: Research indicates that certain wavelengths and treatment parameters of light promote growth of bacteria; however, our earlier work indicated that blue light effectively inactivates growth of S. aureus ...
Lamb Jacob J - - 2013
The concentration of microorganisms in growth medium is an important parameter in microbiological research. One of the approaches to determine this parameter is based on the physical interaction of small particles with light that results in light scattering. Table-top spectrophotometers can be used to determine the scattering properties of a ...
Melo Mary Anne Sampaio de - - 2013
Abstract Objective: The aim of the present study was to examine the size and shape of Streptococcus mutans bacterial cells of infected dentin substrate subjected to photodynamic therapy (PDT) using atomic force microscopy (AFM). Background data: New trends in the application of AFM have been developed in the field of ...
Sha Mo - - 2013
Most anterior spinal instrumentation systems are designed as either a plate or dual-rod system and have corresponding limitations. Dual-rod designs may offer greater adjustability; however, this system also maintains a high profile and lacks a locking design. Plate systems are designed to be stiffer, but the fixed configuration is not ...
Huynh Christopher K - - 2013
Noise properties of large-count spectral multicasting in a phase-insensitive parametric mixer were investigated. Scalable multicasting was achieved using two-tone continuous-wave seeded mixers capable of generating more than 20 frequency non-degenerate copies. The mixer was constructed using a multistage architecture to simultaneously manage high Figure-of-Merit frequency generation and suppress noise generation. ...
Jang Eun-Pyo - - 2013
We report on the synthesis of highly fluorescent double-ZnS-shell-capped, yellow-emitting Cu-In-S quantum dots (QDs) with a surprisingly high quantum yield of 92%, the preparation of a free-standing QD-polymethylmethacrylate composite plate, and the application of the QD plate in the fabrication of QD-based white-light-emitting diodes (WLEDs). A free-standing QD plate with QDs ...
Uzan Amitai - - 2013
We demonstrate the effectiveness of the nonlocal means (NLM) filter for speckle denoising in digital holography. The speckle noise adapted version of the NLM filter is compared with other common speckle denoising filters and is found to give better visual and quantitative results.
Choi Hee-Jeong - - 2013
In this study, a novel optical panel photobioreactor (OPPBR) equipped with a V-cut/or flat optical panel (OP) and a light source, i.e., light-emitting diodes (LEDs) was developed. The performance of this OPPBR was assessed using cultures of Chlorella vulgaris. Growth rates of biomass were compared in bioreactors operated separately using ...
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