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Jimenez Angelica A a Department of Chemistry , Texas Southern University , Houston , Texas , - - 2014
Polycyclic aromatic hydrocarbons (PAHs) are suspected to be carcinogenic and mutagenic. This study describes the presence of PAHs in light, medium and dark roasted coffee including instant and decaffeinated brands. Total PAHs concentration was related to the degree of roasting with light roasted coffee showing the least and dark roasted ...
Kobzeva Tatiana V - - 2014
This month'ss featured article; "Stimulation of luminescence of mycelium of luminous fungus Neonothopanus nambi by ionizing radiation" is a joint contribution from two experimental teams from Novosibirsk and Krasnoyarsk, Russia. The work demonstrates that a moderate dose of X-irradiation reproducibly causes a substantial boost in light production from a wide ...
Fuller Kevin K KK Department of Genetics, Geisel School of Medicine at Dartmouth, Hanover, NH, 03755, USA, - - 2014
Visible light is an important source of energy and information for much of life on this planet. Though fungi are neither photosynthetic nor capable of observing adjacent objects, it is estimated that the majority of fungal species display some form of light response, ranging from developmental decision-making to metabolic reprogramming ...
Milla M J MJ Instituto de Sistemas Optoelectrónicos y Microtecnología (ISOM), Dpto. Ingeniería Electrónica, Universidad Politécnica de Madrid, Ciudad Universitaria s/n, 28040 Madrid, - - 2014
A detailed analysis of the impact of illumination on the electrical response of In0.5Ga0.5As surface nanostructures is carried out as a function of different relative humidity conditions. The importance of the surface-to-volume ratio for sensing applications is once more highlighted. From dark-to-photo conditions, the sheet resistance (SR) of a three-dimensional ...
Babino Darwin D Department of Pharmacology, Case School of Medicine, Case Western Reserve University, Cleveland, Ohio, - - 2014
A cycle of cis-to-trans isomerization of the chromophore is intrinsic to vertebrate vision where rod and cone photoreceptors mediate dim- and bright-light vision, respectively. Daylight illumination can greatly exceed the rate at which the photoproduct can be recycled back to the chromophore by the canonical visual cycle. Thus, an additional ...
Erickstad M M Department of Physics, University of California, San Diego, 9500 Gilman Drive, MC 0374, La Jolla, CA 92093, USA. - - 2014
A source of collimated ultraviolet (UV) light is a central piece of equipment needed for lithographic fabrication of microfluidic devices. Conventional UV light sources based on high-pressure mercury lamps require considerable maintenance and provide broad-band illumination with intensity that often changes with time. Here we present a source of narrow-band ...
Cameron Robert P RP School of Physics and Astronomy, University of Glasgow, Glasgow G12 8QQ, UK. - - 2014
We observe that optical activity in light scattering can be probed using types of illuminating light other than single plane (or quasi plane) waves and that this introduces new possibilities for the study of molecules and atoms. We demonstrate this explicitly for natural Rayleigh optical activity which, we suggest, could ...
Wientjes Emilie E ICFO - Institut de Ciencies Fotoniques, Mediterranean Technology Park, 08860 Castelldefels, Barcelona, Spain. - - 2014
Nanoantennae show potential for photosynthesis research for two reasons; first by spatially confining light for experiments which require high spatial resolution, and second by enhancing the photon emission of single light-harvesting complexes. For effective use of nanoantennae a detailed understanding of the interaction between the nanoantenna and the light-harvesting complex ...
Zhou Weichang W Key Laboratory of Low-dimensional Quantum Structures and Quantum Control of Ministry of Education, College of Physics and Information Science, Hunan Normal University, Changsha 410081, People's Republic of - - 2014
Optoelectronic diode based on PN heterostructure is one of the most fundamental device building blocks with extensive applications. Here we reported the fabrication and optoelectronic properties of GaTe/Sn : CdS nanoflake/nanowire PN heterojunction photodetectors. With high quality contacts between metal electrodes and Sn : CdS or GaTe, the electrical measurement ...
Caldas Giorgi Maria Cecília MC Department of Restorative Dentistry, Piracicaba Dental School, University of Campinas (UNICAMP) , Piracicaba (SP) , - - 2014
Abstract Purpose: To evaluate the influence of light-activation of second, third and fourth increments on degree of conversion (DC) and microhardness (KHN) of the top (T) and bottom (B) surface of the first increment. Materials and methods. Forty samples (n = 5) were prepared. In groups 1-4, after each increment ...
de Boer Esther E Department of Surgery, University of Alabama at Birmingham, Birmingham, Alabama Department of Surgery, University Medical Center Groningen, University of Groningen, Groningen, The - - 2014
Antibody-based photodynamic therapy-photoimmunotherapy (PIT)-is an ideal modality to improve cancer treatment because of its selective and tumor-specific mode of therapy. Because the use of PIT for cancer treatment is continuing to be described, there is great need to characterize a standardized light source for PIT application. In this work, we ...
Spitschan Manuel M http://orcid.org/0000-0002-8572-9268 Departments of Psychology - - 2014
In the human, cone photoreceptors (L, M, and S) and the melanopsin-containing, intrinsically photosensitive retinal ganglion cells (ipRGCs) are active at daytime light intensities. Signals from cones are combined both additively and in opposition to create the perception of overall light and color. Similar mechanisms seem to be at work ...
KazemiKhoo N N Department of Medical Genetics, Tehran University of Medical Sciences, Tehran, Iran, - - 2014
The effects of intravascular laser irradiation of blood (ILIB), with 405 and 632.8 nm on serum blood sugar (BS) level, were comparatively studied. Twenty-four diabetic type 2 patients received 14 sessions of ILIB with blue and red lights. BS was measured before and after therapy. Serum BS decreased highly significant after ...
Ouzounis Theoharis T Department of Chemical Engineering, Biotechnology, and Environmental Technology, University of Southern Denmark, Niels Bohrs Allé 1, DK-5230, Odense, - - 2014
We examined the effect of LED lighting in greenhouse facilities on growth, chlorophyll fluorescence, and pigmentation in Phalaenopsis 'Vivien' and 'Purple Star' under purpose-built LED arrays yielding c. 200 µmol m(-2)  s(-1) at plant height for 14 hours per day and 24/18 °C day/night temperature, respectively, from January to April 2013. The light treatments ...
Kozuleva Marina A MA Institute of Basic Biological Problems, Russian Academy of Sciences, Pushchino, Russia;. Electronic address: - - 2014
O2 reduction was investigated in photosystem I (PSI) complexes isolated from cyanobacteria Synechocystissp.PCC6803 wild type (WT) and menB mutant strain, which is unable to synthesize phylloquinone and contains plastoquinone at the quinone-binding site A1. PSI complexes from WT and menB mutant exhibited different dependencies of O2 reduction on light intensity, ...
Yu Jyh-Cheng - - 2014
This study investigates the optical design of planar curved LED end-lit light bars using v cuts as light-diverting structures. The application of LEDs in automotive lighting has become popular, especially in signal lamps and daytime running lamps. Most designs adopt a direct back light using arrays of LEDs with diffusive ...
Wang Kung-Jeng - - 2014
In developing a daylighting system, the overall system efficiency is crucial. In the daylighting system, whether the light propagates parallel strongly affects the efficiency. In this paper, we simulate a multicurvature lens to collimate rays propagated from different angles. We describe a method based on a freeform microlens array, which ...
Sun Wen-Shing - - 2014
We simulate and compare the illuminance, uniformity, and efficiency of metal-halide lamps, white LED light sources, and hybrid light box designs combining sunlight and white LED lighting used for indoor basketball court illumination. According to the optical simulation results and our examination of real situations, we find that hybrid light ...
Tsai Ming-Shiou - - 2014
This paper presents a tunnel lighting design consisting of a cluster light-emitting diode and a free-form lens. Most of the energy emitted from the proposed luminaire is transmitted onto the surface of the road in front of drivers, and the probability that that energy is emitted directly into drivers' eyes ...
Fan Weigang - - 2014
A simple and efficient visible-light-promoted method for the C-3 thiocyanation of indoles has been developed. The transformation uses Rose Bengal as the photocatalyst and air as the terminal oxidant. The reaction is mild, high-yielding, and environmentally-benign.
Bhunia Susanta Kumar - - 2014
Sunlight induced degradation of organic pollutants is an ideal approach for environmental pollution control and waste water treatment. Although variety of photocatalysts has been designed towards this goal, efficient degradation of colourless organic pollutants by visible light is a challenging issue. Here we show that reduced graphene oxide (rGO) based ...
Yadav Punit P 1] Department of Renal Medicine, Queen Elizabeth Hospital, Birmingham, UK [2] College of Medical and Dental Sciences, Division of Immunity and Infection, University of Birmingham, Birmingham, - - 2014
Kidney involvement is common in paraprotein-related diseases. A diversity of clinical presentations and histopathological features can occur secondary to tissue injury caused by precipitation or deposition of a clonal immunoglobulin, usually an immunoglobulin light chain. The paraprotein is either produced by multiple myeloma or by a clone of B-cell lineage ...
Yuan Xi X Key Laboratory of Functional Materials Physics and Chemistry of the Ministry of Education, Jilin Normal University, Siping 136000, People's Republic of China. State Key Laboratory of Luminescence and Applications, Changchun Institute of Optics, Fine Mechanics and Physics, Chinese Academy of Sciences, Changchun 130033, People's Republic of China. University of Chinese Academy of Sciences, Beijing 100039, People's Republic of - - 2014
We report the fabrication of efficient white light-emitting diodes (WLEDs) based on Cu : ZnInS/ZnS core/shell quantum dots (QDs) with super large Stokes shifts. The composition-controllable Cu : ZnInS/ZnS QDs with a tunable emission from deep red to green were prepared by a one-pot noninjection synthetic approach. The high performance ...
Suzuki Kosuke K Department of Applied Chemistry, School of Engineering, The University of Tokyo, 7-3-1 Hongo, Bunkyo-ku, Tokyo 113-8656 (Japan), Fax: - - 2014
We describe herein the efficient visible-light-responsive polyoxometalate-based multielectron photoredox catalysis induced by in situ coordination of alcohols to the lacuna of TBA4 H4 [γ-SiW10 O36 ] (I, TBA=tetra-n-butylammonium). The coordination of alcohols to the lacuna of I generated a new highest occupied molecular orbital as the electron donor level and ...
Petrenko Volodymyr Yu VY Department of Optoelectronics, V. Lashkaryov Institute of Semiconductor Physics, Pr. Nauki 41 - - 2014
Formation of J aggregates, that is, one-dimensional supramolecular self-organizations in which the transition moments of individual molecules are aligned parallel to the line joining their centers through a "head-to-tail" arrangement, normally proceed via electrostatic interactions between oppositely charged molecular groups; this is facilitated by an electrolyte medium. Here, we show ...
Zhang Zhonghai Z Department of Chemistry, East China Normal University, 500 Dongchuan Road, Shanghai 200241, China. - - 2014
TiO2 based photonic materials (TiO2 PMs) with hierarchical top-nanonet/bottom-nanotube structures were fabricated by a facile two-step electrochemical anodization method. The TiO2 PMs demonstrated multiple band light trapping activity not only in the ultraviolet and visible regions, but also in the near infrared region.
Naya Shin-Ichi SI Environmental Research Laboratory, Kinki University, 3-4-1, Kowakae, Higashi-Osaka, Osaka 577-8502 - - 2014
Adsorption experiments and density functional theory (DFT) simulations indicated that Cu(acac)2 is chemisorbed on the monoclinic sheelite (ms)-BiVO4 surface to form an O2 -bridged binuclear complex (OBBC/BiVO4 ) like hemocyanin. Multi-electron reduction of O2 is induced by the visible-light irradiation of the OBBC/BiVO4 in the same manner as a blue ...
Liu Yu - - 2014
We present a detailed study on trapping and releasing of light in a graded graphene-silica metamaterial waveguide. By applying proper gate voltages onto the graphene layers, the metamaterial with graded-permittivity has the ability to trap the light due to the vanishing of normalized optical power flow between forward and backward ...
Cao Xuan - - 2014
We propose a dictionary-based dense light field acquisition technique. This technique captures light field successfully from a sparse camera array with no mask or any other optical modifications on cameras. Light rays in wider field are captured by our system to achieve larger disparity and higher angular resolution. We also ...
Qiang Zhimin Z Key Laboratory of Drinking Water Science and Technology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, 18 Shuang-qing Road, Beijing, 100085, - - 2014
UV radiometers are widely employed for irradiance measurements, but their periodical calibrations not only induce an extra cost but also are time-consuming. In this study, the KI/KIO3 actinometer was applied to calibrate UV radiometer detectors at 254 nm with a quasi-collimated beam apparatus equipped with a low-pressure UV lamp, and ...
Scofield Adam C AC Department of Electrical Engineering and California NanoSystems Institute, University of California at Los Angeles , Los Angeles, California 90095, United - - 2014
The growth of GaAs/GaAsP axial heterostructures is demonstrated and implemented as diffusion current barriers in nanopillar light-emitting diodes at near-infrared wavelengths. The nanopillar light-emitting diodes utilize an n-GaAs/i-InGaAs/p-GaAs axial heterostructure for current injection. Axial GaAsP segments are inserted into the n- and p-GaAs portions of the nanopillars surrounding the InGaAs ...
Karker Nicholas - - 2014
Detection of gases such as H2, CO, and NO2 at 500°C or greater requires materials with thermal stability and reliability. One of the major barriers towards integration of plasmonic-based chemical sensors is the requirement of multiple components such as light sources and spectrometers. In this work, plasmonic sensing results are ...
Richter Peter R PR Cell Biology Division, Gravitational Biology, Friedrich-Alexander-University Erlangen-Nuremberg , Erlangen, Germany - - 2014
Abstract The unicellular photosynthetic freshwater flagellate Euglena gracilis is a promising candidate as an oxygen producer in biological life-support systems. In this study, the capacity of Euglena gracilis to cope with different light regimes was determined. Cultures of Euglena gracilis in closed bioreactors were exposed to different dark-light cycles (40 W/m(2) ...
Wang Zhuozhi Z Department of Chemistry, Florida Institute of Technology, Melbourne, FL 32901 - - 2014
Controlled release of odorous molecules is the key to digital scent technology which will add another dimension to electronics. Photorelease is a cold mechanism that promises better temporal and spatial control than thermal release. Herein we report a novel material composed of an acid-sensitive polymer carrying a fragrant aldehyde and ...
van der Lely Stéphanie S Centre for Chronobiology, Psychiatric Hospital of the University of Basel, Basel, - - 2014
Adolescents prefer sleep and wake times that are considerably delayed compared with younger children or adults. Concomitantly, multimedia use in the evening is prevalent among teenagers and involves light exposure, particularly in the blue-wavelength range to which the biological clock and its associated arousal promotion system is the most sensitive. ...
Li Wentao W Zhongshan Ophthalmic Center, Guangzhou, 510060, - - 2014
Purpose To investigate the effect of spectral composition and light intensity on refractive development in guinea pigs. Methods One-week-old guinea pigs were randomly assigned to groups exposed to broad spectrum of Solux halogen light (BS) or spiked spectrum of fluorescent light (FL) at both high (Hi, 10,000 lux) and low ...
Herrera Guillermo A GA From the Department of Pathology, Louisiana State University, - - 2014
Context.-Lesions associated with monoclonal light and heavy chains display a variety of glomerular, tubular interstitial, and vascular manifestations. While some of the entities are well recognized, including light and heavy chain deposition diseases, AL (light chain) and AH (heavy chain) amyloidosis, and light chain ("myeloma") cast nephropathy, other lesions centered ...
Muhieddine Khalid K The Centre for Organic Photonics & Electronics, School of Mathematics and Physics and School of Chemistry and Molecular Biosciences, The University of Queensland, Brisbane, Queensland, Australia, - - 2014
M. Ullah, E. B. Namdas, and co-workers present on page 6410 the first all-solution-processed hybrid light-emitting transistors, and demonstrate the effectiveness of their operation with three organic emissive materials. This approach involves the fabrication of a bilayer device structure using a solution of organic emissive material, and a sol-gel of ...
- - 2014
If gold nanorods are used as photoabsorbers, then light in the near infrared tissue window can generate a strong photothermal effect. In this issue, C. Paviolo et al. show that near infrared light can be used to evoke a calcium response in neuronal cells treated with gold nanorods. This suggests ...
Deng Wei W macquarie - - 2014
Neuronal stimulation by light is a novel approach in the emerging field of optogenetics, where genetic engineering is used to introduce light activated channels. However light is also capable of stimulating neurons even in the absence of genetic modifications, through a range of physical and biological mechanisms. As a result, ...
Terakita Akihisa A Department of Biology and Geosciences, Graduate School of Science, Osaka City University, 3-3-138 Sugimoto, Sumiyoshi-ku, Osaka 558-8585, - - 2014
Many animals have developed systems for sensing environmental conditions during evolution. In sensory cells, receptor molecules are responsible for their sensing abilities. In light sensing, most animals capture light information via rhodopsin-like photoreceptive proteins known as opsin-based pigments. A body of evidence from comparisons of amino acid sequences and in ...
Vijayaraghavan Priya P Department of Chemistry, National Tsing Hua University, Hsinchu, 30013, Taiwan, - - 2014
Gold nanoechinus can act as dual modal nanomaterial-mediated photodynamic therapy and photothermal therapy reagents for complete destruction of solid tumors upon NIR light irradiation, as discussed by K. C. Hwang and co-workers on page 6689.
Shin Yu-Bin YB Department of Psychiatry and Institute of Behavioral Science in Medicine, Yonsei University College of Medicine, Seoul, South Korea; Brain Korea 21 PLUS Project for Medical Science, Yonsei University, Seoul, South - - 2014
This study was performed to explore how direct/indirect lighting affects emotions and brain oscillations compared to the direct lighting when brightness and color temperature are controlled. Twenty-eight subjects (12 females; mean age 22.5) participated. The experimental conditions consisted of two lighting environments: direct/indirect lighting (400 lux downlight, 300 lux uplight) ...
Montagnese Sara S Department of Medicine, University of Padova , Padova , Italy - - 2014
Circadian rhythmicity and non-visual sensitivity to light can be assessed, in healthy subjects, by measuring the rhythm of the urinary melatonin metabolite 6-sulphatoxymelatonin (aMT6s) and by determining the response of plasma melatonin to nocturnal retinal light exposure, respectively. However, the validity of these techniques has not been assessed in disease ...
Dessì Alessio A Dipartimento di Chimica "U. Schiff", Università degli Studi di Firenze, Via della Lastruccia 13, 50019 Sesto Fiorentino, - - 2014
Three new thiazolo[5,4-d]thiazole-based organic dyes have been designed and synthesized for employment as DSSC sensitizers. Alternation of the electron poor thiazolothiazole unit with two propylenedioxythiophene (ProDOT) groups ensured very intense light absorption in the visible region (ε up to 9.41 × 10(4) M(-1) cm(-1) in THF solution). The dyes were ...
Begg J J School of Applied Sciences and Health Innovations Research Institute, RMIT University, GPO Box 2476, Melbourne, VIC, 3001, Australia, - - 2014
Temporally varying light intensity during acquisition of projection images in an optical CT scanner can potentially be misinterpreted as physical properties of the sample. This work investigated the impact of LED light source intensity instability on measured attenuation coefficients. Different scenarios were investigated by conducting one or both of the ...
Henriksen Tone Eg TE Department of Clinical Medicine, Section for Psychiatry, Faculty of Medicine and Dentistry, University of Bergen, Bergen, Norway; Division of Mental Health Care, Valen Hospital, Fonna Local Health Authority, Norway and MoodNet Research Group, Bergen, Norway; Division of Psychiatry, Haukeland University Hospital, Bergen, - - 2014
Available pharmacological treatment of mania is insufficient. Virtual darkness therapy (blue light-blocking treatment by means of orange-tinted glasses) is a promising new treatment option for mania. The basis for this might be the recently identified blue light-sensitive retinal photoreceptor, which is solely responsible for light stimulus to the circadian master ...
Tang Man-Chung MC Department of Chemistry, The University of Hong Kong, Pokfulam Road (Hong Kong), Fax: +(852) 2857-1586, Tel: - - 2014
A novel isoquinoline-containing C^N^C ligand and its phosphorescent triphenylamine-based alkynylgold(III) dendrimers have been synthesized. These alkynylgold(III) dendrimers serve as phosphorescent dopants in the fabrication of efficient solution-processable organic light-emitting devices (OLEDs). The photophysical, electrochemical, and electroluminescence properties were studied. A saturated red emission with CIE coordinates of (0.64, 0.36) and ...
Ferrier-Pagès C C Centre Scientifique de Monaco, Monaco, Monaco, - - 2014
Gorgonians are one of the most important benthic components of tropical and temperate areas, and play a fundamental role as ecosystem engineers. Although global warming and pollution increasingly threaten them, the acquisition of nutrients, which is a key process in fitness and stress resistance, has been poorly investigated in such ...
Toshchevikov Vladimir Petrovich - - 2014
We study light-induced deformation of azobenzene elastomers which can display liquid-crystalline (LC) order. It is shown that photo-mechanical behavior of azobenzene elastomers is determined by the strength of the LC-interactions which is proportional to the density of rod-like azobenzene chromophores. At weak LC-interactions, a uniaxial order and uniaxial deformation of ...
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