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Bookwalter Carol S CS University of Vermont, United - - 2014
Many diverse myosin classes can be expressed using the baculovirus/Sf9 insect cell expression system, while others have been recalcitrant. We hypothesized that most myosins utilize Sf9 cell chaperones, but others require an organism-specific co-chaperone. TgMyoA, a class XIVa myosin from the parasite Toxoplasma gondii, is required for the parasite to ...
Beyer Hannes M HM Faculty of Biology, University of Freiburg, Freiburg, Germany; Spemann Graduate School of Biology and Medicine (SGBM), University of Freiburg, Freiburg, - - 2014
Molecular signals are sensed by their respective receptors and information is transmitted and processed by a sophisticated intracellular network controlling various biological functions. Optogenetic tools allow the targeting of specific signaling nodes for a precise spatiotemporal control of downstream effects. These tools are based on photoreceptors such as phytochrome B ...
Hughes Robert M RM Department of Chemistry, Division of Chemical Biology and Medicinal Chemistry, and Department of Pharmacology, University of North Carolina, Chapel Hill, NC 27599 - - 2014
Genetically encoded, light-activatable proteins provide the means to probe biochemical pathways at specific subcellular locations with exquisite temporal control. However, engineering these systems in order to provide a dramatic jump in localized activity, while retaining a low dark-state background remains a significant challenge. When placed within the framework of a ...
Levine Emily S ES Dept. of Cell Biology and Human Anatomy, University of California Davis, Davis, CA 95618, United - - 2014
Microglia dynamically prune synaptic contacts during development, and digest waste that accumulates in degeneration and aging. In many neurodegenerative diseases, microglial activation and phagocytosis gradually increase over months or years, with poorly defined initial triggering events. Here, we describe rapid retinal microglial activation in response to physiological light levels in ...
Xie Yanru Y School of Physics, Shandong University, Jinan, 250100, P. R. China. - - 2014
Self-powered UV photodetectors based on TiO2 and ZnO nanorod arrays have attracted lots of attention in recent years due to their various advantages. Impressive performances were observed in photochemical cell based UV detectors. However, liquid electrolytes are not ideal for long-term operation and are inconvenient for practical applications. Hence there ...
Nobukawa Teruyoshi - - 2014
A high-resolution and multilevel designed reference pattern (DRP) is presented for improvement of both light utilization efficiency and the signal-to-noise ratio (SNR) of reconstructed images in coaxial holographic data storage. With a DRP, the desired Fourier power spectrum of a reference beam is obtained. Numerical and experimental results show that ...
Hong Gui-Bing - - 2014
In this study, polyvinyl alcohol (PVA) and titania (TiO2) Degussa P-25 were mixed to generate TiO2 nonwoven filters using electrospinning. The wires of titanium dioxide and the nonwoven binding titania nanofibers were formed using 14 kV voltage and a distance of 15 cm. A single-factor experimental method was used to ...
Sutherland Donna L DL National Institute of Water and Atmospheric Research Ltd. (NIWA), PO Box 8602, Christchurch, New Zealand; School of Biological Sciences, University of Canterbury, Christchurch, New Zealand. Electronic address: - - 2014
Laminar flows are a common problem in high rate algal ponds (HRAP) due to their long channels and gentle mixing by a single paddlewheel. Sustained laminar flows may modify the amount of light microalgal cells are exposed to, increase the boundary layer between the cell and the environment and increase ...
Wang Lin-Lin LL Research Center for Environmental and Management, Graduate School at Shenzhen Tsinghua University, Shenzhen 518055, PR - - 2014
A novel flat plate photobioreactor with horizontal baffles was developed. The effects of aeration intensity and aeration site were investigated using computational fluid dynamics. The effects of baffle structural parameters, including the ratio of clearance between the baffle and the bioreactor wall (d) to bioreactor width (D) and the ratio ...
Kang Jin-Ho - - 2014
A GaN vertical light emitting diode (LED) based on the novel lift-off method was demonstrated by high temperature regrowth over nanoporous (NP) GaN template formed by electrochemical (EC) etching. A two-step EC etching process was employed on a SiO2 patterned GaN surface to fabricate a nanoporous template with a controlled ...
Credi Alberto A Dipartimento di Chimica "G. Ciamician", Università di Bologna, and Interuniversity Center for the Chemical Conversion of Solar Energy (SolarChem), Via Selmi, 2, 40126, Bologna, Italy, - - 2014
Rotaxanes and related species represent the most common implementation of the concept of artificial molecular machines, because the supramolecular nature of the interactions between the components and their interlocked architecture allow a precise control on the position and movement of the molecular units. The use of light to power artificial ...
Huang Jianke J State Key Laboratory of Bioreactor Engineering, East China University of Science and Technology, Shanghai 200237, PR China. Electronic address: - - 2014
Novel flat-plate photobioreactors (PBRs) with special mixers (type-a, type-b, and type-c) were designed based on increased mixing degree along the light gradient. The hydrodynamic and light regime characteristic of the novel PBRs were investigated through computational fluid dynamics. Compared with the control reactor without mixer, the novel reactors can effectively ...
Lang Stephanie S Department of Radiation Oncology, University Hospital Zurich, 8091 Zurich, - - 2014
Tumor motion increases safety margins around the clinical target volume and leads to an increased dose to the surrounding healthy tissue. The authors have developed and evaluated a one-dimensional treatment couch tracking system to counter steer respiratory tumor motion. Three different motion detection sensors with different lag times were evaluated. ...
Tricolici O O National Research and Development Institute for Industrial Ecology - ECOIND, 71-73 Drumul Podu Dambovitei Street, 060652, Sector 6, Bucharest, Romania E-mail: - - 2014
A microalgae-bacteria system was used for dairy industry wastewater treatment in sequenced batch mode in a photobioreactor. The research investigated the influence of two light intensities: 360 and 820 μmol m(-2)s(-1) on treatment performances, microalgal cell recovery and dynamics of the protozoan community. Results showed that the light intensity of ...
Liu Zhenzhen Z Key Laboratory for Advanced Materials, Institute of Fine Chemicals, East China University of Science and Technology, 130# Meilong Road, Shanghai, 200237, P. R. China. baochunyan@ecust.edu.cn - - 2013
A facile methodology for light-triggered release of thiols under mild conditions is presented, which can be utilized for in situ bioconjugation with protein and quantum dot nanoparticles (QDs) efficiently.
Lavorato Cristina - - 2013
There is much current interest in developing graphene-based materials as photocatalysts, particularly in the field of solar fuels and the photocatalytic generation of hydrogen. Graphene is a versatile material allowing different modification strategies to improve its activity. Thus, in the present manuscript we report that, in contrast to the lack ...
Yu Chongfei - - 2013
Well-defined, uniform bismuth vanadate (BiVO4) microcolumns were synthesized through a refined hydrothermal route. During the fabrication process, a detailed orthogonal design on the synthetic conditions was performed, aiming to optimize the experimental parameters to produce BiVO4 materials (BiVO4 (Opt.)) with the most prominent visible-light-driven photocatalytic efficiency, where the catalytic activities ...
Abargues M R - - 2013
The aim of this study was to assess the effect of light, oxygen and microalgae on micropollutants removal. The studied micropollutants were 4-(1,1,3,3-tetramethylbutyl)phenol (OP), technical-nonylphenol (t-NP), 4-n-nonylphenol (4-NP), Bisphenol-A (BPA). In order to study the effect of the three variables on the micropollutants removal, a factorial design was developed. The ...
Hope Christopher K - - 2013
Lethal photosensitization has been previously demonstrated in Porphyromonas gingivalis, but oxygen is considered to be essential to this process. However, since P. gingivalis is a periodontal pathogen which grows in the low oxygen conditions found in the subgingival crevice, it was considered prudent to study its photosensitivity in anaerobic conditions. ...
An Junjian - - 2013
The visible light photo-Fenton-like catalytic performance of BiFeO3 nanoparticles was investigated using Methyl Violet (MV), Rhodamine B (RhB) and phenol as probes. Under optimum conditions, the pseudo first-order rate constant (k) was determined to be 2.21 x 10(-2), 5.56 x 10(-2) and 2.01 x 10(-2) min(-1) for the degradation of ...
Ruan Jujun - - 2013
A physical recovery line had been constructed in plant for the increasing waste toner cartridges in previous work. However, with the production, severe lacks of the line were emerged: (1) there was little proper technology of treating the collected toner; (2) strong noise was produced from the line and had ...
Hernoux-Villière Audrey - - 2013
An advanced dual frequency ultrasonic coaxial reactor enabling simultaneously low and high frequencies irradiating in the same direction was developed to focus both mechanical and chemical effects on a concentrated area. The prototype was straightforward employed for the conversion of a starch-based industrial waste into sugars.
Lee Xuan-Hao - - 2013
An efficient LED lamp that illuminates the street with high quality is presented. The luminaire shows high optical efficiency, high optical utilization factor, low glare, and illuminates the street with high uniformity. The concept is simple but effective: a cluster of LEDs with TIR lenses are put inside a reflective ...
Yeon Jeongho - - 2013
Transparent display is one of the most promising concepts among the next generation information display devices. Nevertheless, conventional transparent displays have two inherent problems: low forward light efficiency due to the light being emitted also in a backward direction; and low legibility due to the visual interruption caused by the ...
Sahu A K - - 2013
Li3 PO4 phosphor was prepared using a modified solid-state diffusion technique. In this work, photoluminescence, lyoluminescence and mechanoluminescence studies were carried out in a Li3 PO4 microcrystalline powder doped with different rare earths. In photoluminescence studies, characteristic emission of Ce and Eu was observed. The lyoluminescence glow curves of Li3 ...
Campbell Douglas A - - 2013
All oxygenic photoautotrophs suffer photoinactivation of their Photosystem II complexes, at a rate driven by the instantaneous light level. To maintain photosynthesis, PsbA subunits are proteolytically removed from photoinactivated Photosystem II complexes, primarily by a membrane-bound FtsH protease. Diatoms thrive in environments with fluctuating light, such as coastal regions, in ...
Yan Cheng - - 2013
Chemical fertilizer agricultural wastewater is a typical high-strength wastewater that has dramatically triggered numerous environmental problems in China. The Chlorella vulgaris microalgae biological wastewater treatment system used in this study can effectively decontaminate the high-strength carbon and nitrogen wastewater under an optimum light wavelength and light intensity supply strategy. The ...
Santoro Antonio - - 2013
Multiple myeloma (MM) is still one of the most common haematological diseases and is associated with a poor prognosis. It is frequently worsened by acute kidney failure that, in turn, aggravates the risk of death. In the past few years, the idea has made headway that the removal of free ...
Patil Vikram - - 2013
Graphene's unique optoelectronic properties are promising to realize photodetectors with ultrafast photoresponse over a wide spectral range from far-infrared to ultraviolet radiation. The underlying mechanism of the photoresponse has been a particular focus of recent work and was found to be either photoelectric or photo-thermoelectric in nature and enhanced by ...
Ge Zhigang - - 2013
The high-strength wastewater is now well known as a threat to the natural water since it is highly possible to arouse water eutrophication or algal blooms. The effects of various light emitting diode wavelengths and intensities on the microalgae biological wastewater treatment system was studied in this research. The various ...
Kim Tae-Hyeong - - 2012
In wastewater treatment using microalgae, the effects of wavelength and wavelength mixing ratio on microalgae growth and removal of nitrogen and phosphorus were evaluated using LEDs (white light, 670nm, 450nm, and 525nm). Microalgae production rates were enhanced by a maximum of 45% with 400-700nm white light compared to that of ...
Cheng Juan - - 2012
Artificial nanowalkers are inspired by biomolecular counterparts from living cells, but remain far from comparable to the latter in design principles. The walkers reported to date mostly rely on chemical mechanisms to gain a direction; they all produce chemical wastes. Here we report a light-powered DNA bipedal walker based on ...
Huang Shibin - - 2012
Stimuli-responsive nanoparticles have attracted considerable interest due to their enormous potential applications. In this paper, nano-sized bifunctional spherical polyelectrolyte brushes (BSPBs) were prepared through grafting random copolymer chains from N-isopropylacrylamide (NIPA) and acrylic acid (AA) onto polystyrene core by photo-emulsion polymerization. The pH- and thermo-responses of the BSPB with different ...
Rosa Isabel M D - - 2012
  Different deforestation agents, such as small farmers and large agricultural businesses, create different spatial patterns of deforestation. We analyzed the proportion of deforestation associated with different-sized clearings in the Brazilian Amazon from 2002 through 2009. We used annual deforestation maps to determine total area deforested and the size distribution ...
Kawasaki Aki - - 2012
Purpose: To characterize the pupil responses that reflect rod, cone and melanopsin function in a genetically homogeneous cohort of patients with autosomal dominant retinitis pigmentosa (adRP). Methods: Nine patients with Gly56Arg mutation of the NR2E3 gene and 12 control subjects were studied. Pupil and subjective visual responses to red and ...
Lorenz Birgit - - 2012
Purpose: The aim of the study was to objectively characterize the function of rods, cones and intrinsic photosensitive retinal ganglion cells (ipRGCs) in patients with RPE65 mutations using two published protocols for chromatic pupillometry, and to correlate the data with the clinical phenotype. Methods: The study group comprised 11 patients ...
Tong Zhisong - - 2012
It is shown that twisted stochastic light can serve as illumination that may produce images with a resolution overcoming the Rayleigh limit by an order of magnitude. This finding is illustrated for an isoplanatic axially symmetric system with low angular aperture and twisted scalar Gaussian Schell-model illumination.
Münch Mirjam - - 2012
Nonvisual light-dependent functions in humans are conveyed mainly by intrinsically photosensitive retinal ganglion cells, which express melanopsin as photopigment. We aimed to identify the effects of circadian phase and sleepiness across 24 hours on various aspects of the pupil response to light stimulation. We tested 10 healthy adults hourly in ...
Hysek Cédric M - - 2012
Pupillometry can be used to characterize autonomic drug effects. This study was conducted to determine the autonomic effects of 3,4-methylenedioxymethamphetamine (MDMA, ecstasy), administered alone and after pretreatment with reboxetine, duloxetine, clonidine, carvedilol, and doxazosin, on pupillary function. Infrared pupillometry was performed in five placebo-controlled randomized studies. Each study included 16 ...
Daneault Véronique - - 2012
Many nonvisual functions are regulated by light through a photoreceptive system involving melanopsin-expressing retinal ganglion cells that are maximally sensitive to blue light. Several studies have suggested that the ability of light to modulate circadian entrainment and to induce acute effects on melatonin secretion, subjective alertness, and gene expression decreases ...
Behrends Matthias - - 2012
BACKGROUND: : The presence or absence of the pupillary light reflex following cardiopulmonary resuscitation has been shown to have prognostic value. We asked whether the light reflex could be objectively measured during cardiopulmonary resuscitation in humans and whether the quality of the reflex was associated with outcome. METHODS: : Sixty-seven ...
Wang Dandan - - 2012
Purpose: To assess the distribution of dark-light changes in iris features and associated factors amongst American Caucasians, American Chinese and mainland Chinese aged 40 years and over. Methods: Four gender- and age-matched cohorts: Caucasians, American Chinese, Southern Chinese and Northern Chinese comprised the study population. Anterior segment optical coherence tomography ...
Daluwatte C - - 2012
We investigated the potential inter-relationship between two measures of autonomic nervous system: pupillary light reflex (PLR) and heart rate variability (HRV), in healthy children of 8-16 years old. PLR was measured at both dark- and light-adapted conditions with various stimulation intensities. Simultaneously measured HRV was obtained in five different PLR ...
Liu Huiyu - - 2012
Despite advances in photothermal therapy of gold nanoshells, reliable evaluations of their size dependence on the relative biological effects are needed. We report the size effects of PEGylated gold nanoshells on silica nanorattles (pGSNs) on their cellular uptake, in vivo fate and light-heat conversion efficiency in this study. The results ...
Kosoglu Mehmet A - - 2012
BACKGROUND AND OBJECTIVES: Microneedles made from silica fiberoptics permit transmission and collection of light, which is an important functional advantage over metal or silicon microneedles. This added functionality may enhance or even enable new percutaneous light-based clinical diagnostic and therapeutic procedures. Micron-diameter fiberoptic microneedles, created from solid fibers capable of ...
El-Askary Farid S - - 2012
To investigate the influence of shade and light-curing distance on the degree of conversion (DC) and flexural strength (FS) of a dual-cure core build-up resin composite. 135 specimens were prepared and divided into three main groups according to the shade of the composite core material; dentin, blue and white shades. ...
Mueggenburg Nathan - - 2012
Successive vertical vibrations can cause a granular pack to rearrange and move to more and more dense configurations. The dilation of the pack that occurs during the vibrations is important to these rearrangements and the resulting compaction of the system. This paper presents an experimental study in which a confining ...
Gong Yanjun - - 2012
In this study, the relationship between backscatter coefficient (BSC) and the size of Ultrasound Contrast Agents (UCAs) microbubbles has been investigated in vitro. Monodisperse lipid-coated microbubbles were produced using a flow-focusing microfluidic device. A single-element unfocused transducer with center frequency 2.25 MHz was used to measure the BSC of microbubbles ...
Mori Hidetoshi - - 2012
OBJECTIVES: To determine if acupuncture stimulation elicits a pupillary response under light adaptation and whether there is any difference in the pupillary response between light and dark adaptation environments during acupuncture stimulation. METHODS: The participants consisted of 55 healthy individuals who had no known eye diseases or pupil abnormalities. Experiment ...
Polyakov A - - 2012
Nanometer sized cavities arranged as a subwavelength metallic grating can provide omni-directional and complete absorption of light. We present an explanation of this extraordinary phenomenon as a collective resonant response of a system based on a surface impedance model. This model gives a straightforward way to design systems for optimum ...
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