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query stringlengths 1 13.4k | pos stringlengths 1 61k | neg stringlengths 1 63.9k | query_lang stringclasses 147
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We report here a micro fluidic device with a controlled opening, which is used for accessing the fluid inside the micro channel from outside. The control of the reduced diameter of the opening pore is achieved by depositing a controlled Parylene layer on a starting lager opening hole. By changing the Parylene type and ... | Here we describe the application of a recently developed high-resolution microcantilever biosensor resonating at the air–liquid interface for the continuous detection of antigen–antibody and enzyme–substrate interactions. The cantilever at the air–liquid interface demonstrated 50% higher quality factor and a 5.7-fold i... | Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights. | eng_Latn | 9,000 |
It is well known that coupling a single emitter to metallic structures modifies drastically its fluorescence properties compared to single emitter in vacuum. Depending on various parameters such as the nature of the metal or the geometry of the metallic structure, quenching or intensity enhancement as well as radiative... | Fluorescence methods are being used increasingly in biochemical, medical, and chemical research. This is because of the inherent sensitivity of this technique. and the favorable time scale of the phenomenon of fluorescence. 8 Fluorescence emission occurs about 10- sec (10 nsec) after light absorp tion. During this peri... | Management of game ungulates alters population structure and habitat features, with potential effects on genetic structure. Here, we study 26 red deer (Cervus elaphus) populations in Spain. We used census data and habitat features as well as genetic information at 11 microsatellite markers from 717 individuals. We foun... | eng_Latn | 9,001 |
Photonic crystal fibre constitutes an optofluidic system in which light can be efficiently coupled into a solution-phase sample, contained within the hollow core of the fibre, over long path-lengths. This provides an ideal arrangement for the highly sensitive monitoring of photochemical reactions by absorption spectros... | The immobilization and probing of liposomes within photonic crystal fibers was demonstrated for the first time. A bioactive surface was used to tether the liposomes. This bioactive surface consisted of streptavidin bound to a photochemically functionalized biotin layer. Bound streptavidin, hence, enabled the further bi... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 9,002 |
Surface plasmon resonance microscopy (SPRM) is an emerging label-free optical microscopic imaging technology. It utilizes the planar surface plasmon resonance effect to visualize the optical mass of individual nano-objects. On the basis of appropriate optical-to-electrochemical conversion models, electrochemical curren... | Optical modeling coupled to experiments show that a microscope operating in reflection mode allows imaging, through solutions or even a microfluidic cover, various kinds of nanoparticles, NPs, over a (reflecting) sensing surface, here a gold (Au) surface. Optical modeling suggests that this configuration enables the in... | Both acquired and intrinsic mechanisms play a crucial role in Pseudomonas aeruginosa antibiotic resistance. Many clinically relevant resistance mechanisms result from changes in gene expression, namely multidrug efflux pump overproduction, AmpC β-lactamase induction or derepression, and inactivation or repression of th... | eng_Latn | 9,003 |
Pyrylium ions are useful reagents to selectively modify the amino group of protein lysine residues. This property was exploited here to label proteins with chromium tricarbonyl complexes in the form of 4-benchrotrenyl pyridinium ions. Kinetic studies of the reaction of a series of benchrotrenyl pyrylium salts with wate... | Electrospun nanofibers (ENFs) are promising materials for rapid diagnostic tests like lateral flow assays and dipsticks because they offer an immense surface area while excluding minimal volume, a variety of functional surface groups, and can entrap functional additives within their interior. Here, we show that ENFs on... | Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights. | eng_Latn | 9,004 |
Little information is available on the reaction products of formaldehyde (FA) with milk components. An isoelectric focusing (IEF) method was developed which detected a unique protein band with pi = 6.7 in defatted Grana Padano cheese samples prepared with FA. The quantity of FA (ppm) added to milk may be extrapolated b... | A simple GC-MS method has been developed and validated for the direct determination of hexamethylenetetramine (HMT). The separation of HMT was performed using a MXT-1 column. The calibration curve was linear over the concentration range 0.1-25 μg/mL, with a good correlation coefficient (r =0.9996). The recoveries of HM... | We present a particle-in-cell (PIC) method using a nonhomogeneous immersed-finite-element (IFE) field solver for modeling dielectric surface charging of complex-shaped objects in plasmas. The IFE solver allows PIC codes using a Cartesian mesh applied to simulations involving arbitrarily shaped objects with a similar ac... | eng_Latn | 9,005 |
: The objective of the proposed work was to develop a range of new separation and purification media based on ligand imprinting techniques to generate ligand binding sites on silica-immobilized proteins for specifically targeted compounds. Ligand imprinting take advantage of our ability to manipulate the dynamical prop... | Research activities in smart materials at the Army Research Office (ARO), over the past decade is briefly reviewed. Status of the current program is discussed. The current symposia is previewed and a look to the future needs and opportunities for smart materials research is presented. | Blunt trauma abdomen rarely leads to gastrointestinal injury in children and isolated gastric rupture is even rarer presentation. We are reporting a case of isolated gastric rupture after fall from height in a three year old male child. | eng_Latn | 9,006 |
A thin layer of TiO 2 film was deposited on ITO surface via the liquid phase deposition (LPD) process. The photocurrent and electrochemical impedance spectroscopy (EIS) measurements indicated that the as-prepared LPD TiO 2 /ITO film had an excellent photoelectrochemical performance, which showed a sensitive and rapid r... | Advanced oxidation processes (AOPs), on the basis of photoelectrochemical reactions, constitute a good alternative for treating wastewaters contaminated with refractory organic compounds such as dyes. For this purpose, different approaches have been explored to develop novel photoanodes that can be efficiently used in ... | In this paper, it is shown that pure chitosan nanofibers and films were prepared with success in 0.5 M acetic acid as solvent using poly (ethylene oxide) (PEO) at different yields, allowing electrospinning of the blends. After processing, a neutralization step of chitosan followed by water washing is performed, preserv... | eng_Latn | 9,007 |
We report on a sapphire fiber Raman imaging probe’s use for challenging applications where access is severely restricted. Small-dimension Raman probes have been developed previously for various clinical applications because they show great capability for diagnosing disease states in bodily fluids, cells, and tissues. H... | Considerable interest has been shown in fiber Raman probes as powerful tools for in situ biomedical diagnosis and monitoring processes in the materials industry. Miniaturization and high spatial resolution are required for less invasive measurements with accurate locations. In analysis of organs, widespread visible exc... | By using a superluminescent diode as the light source and a depolariser inside the fibre coil, a constant scale factor is achieved without using polarisation control elements. For long-term behaviour an RMS-bias drift of 10 degrees/h is obtained. | eng_Latn | 9,008 |
The applications of nanoparticles in optical techniques of diagnosis and treatment of biological tissues are increasing. Image contrast can be improved in diagnostic approaches such as fluorescence, spectroscopy or optical coherence tomography. The therapeutic effect can be increased if nanoparticles are previously inc... | A Monte Carlo model of steady-state light transport in multi-layered tissues (MCML) has been coded in ANSI Standard C; therefore, the program can be used on various computers. Dynamic data allocation is used for MCML, hence the number of tissue layers and grid elements of the grid system can be varied by users at run t... | We report enhancement of the mechanical stability of graphene through a one-step method to disperse gold nanoparticles on the pristine graphene without any added agent. | eng_Latn | 9,009 |
Quantum dots (QDs) interaction with living organisms is of central interest due to their various biological and medical applications. One of the most important mechanisms proposed for various silicon nanoparticle-mediated toxicity is oxidative stress. We investigated the basic processes of cellular damage by oxidative ... | The successful development of highly sensitive, water-compatible, nontoxic nanoprobes has allowed nanomaterials to be widely employed in various applications. The applicability of highly bright quantum dot (QD)-based probes consisting of QDs on 120 nm silica nanoparticles (NPs) with silica shells is investigated. Their... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 9,010 |
In recent years, foodborne pathogens have become a significant concern due to increasing numbers of outbreaks and the resulting fatalities and economic losses. In addition to improving hygienic practices in food production and preparation, improvement in pathogen testing is urgently needed. Conventional culture-based m... | We investigated the presence and related signal-to-noise ratio (SNR) of rod-shaped bacteria on a produce surface using elastic scattering. The theoretical noise was defined as a scattering signal from a rough produce surface while the signal was defined as a scattering signal from the increasing numbers of rod-shaped b... | Soliton-based MIR supercontinuum generation between 1.2 μm and 2.4 μm is presented using a highly nonlinear CS2-core optical fiber and a 430 fs Tm-based pump source. | eng_Latn | 9,011 |
Photoelectron spectroscopy of microjets expanded into vacuum allows access to orbital energies for solute or solvent molecules in the liquid phase. Microjets of water, acetonitrile and alcohols have previously been studied; however, it has been unclear whether jets of low temperature molecular solvents could be realize... | A state-of-the-art experimental setup for soft X-ray photo- and Auger-electron spectroscopy from liquid phase has been built for operation at the synchrotron-light facility BESSY II, Berlin. The experimental station is named SOL3, which is derived from solid, solution, and solar, and refers to the aim of studying solid... | Addresses the problem of generating a neural-network based virtual sensor particularly in circumstances where the available information is insufficient to train a neural network. An approach is proposed that involves the modeling of an alternative relationship and an a priori knowledge from which the unmeasured variabl... | eng_Latn | 9,012 |
Using DNA aptamer and guanine chemiluminescene detection, we developed a highly sensitive biosensor for the rapid quantification and monitoring of Hg2+ in drinking water. The random coil structure of DNA aptamer was transformed to a hairpin-link thymine (T)–Hg2+–T complex, closed by the hybridization of guanine and cyt... | A cost-effective and simple biosensor was developed for the accurate and rapid monitoring of norovirus GII in a sample. The modified DNA aptamer, 5 guanines linked to conventional DNA aptamer, designed for the research, was able to rapidly capture norovirus GII in tap water as well artificial urine. In addition, the ex... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 9,013 |
A custom-designed silicon-based 50-GHz interconnect is integrated for packaging demonstrations of broadband optoelectronic (OE) applications in silicon optical microbench technology. The half-shielded (or partially shielded) 0.5-cm interconnect has 25-dB isolation and 0.9-dB transmission loss over 50 GHz. When implemen... | Demand for a compact cost reduced optical transceiver has arisen. Small form factor (SFF) optical transceivers are expected to meet this demand. A new concept optical module based on V-grooved silicon optical bench (SiOB) technology, that enables a passive alignment of optical fibers and optical devices is expected to ... | While it is well known that the engagement of IgG Fc receptors on the macrophage surface triggers a number of cellular responses, including particle ingestion, secretion, and respiratory burst activity, the mechanism of signal transmission following ligand binding remains poorly understood. To acquire more data in this... | eng_Latn | 9,014 |
Time-resolved and spatially offset Raman spectroscopies have previously been demonstrated for depth analysis through strongly scattering, non-transparent materials. In this study, several series of tissue phantoms were created with varied compositions and thicknesses to compare the potential of these different Raman te... | The ability to probe fresh tissue is a key feature to biomedical Raman spectroscopy. However, it is unclear how Raman spectra of calcified tissues are affected by freezing. In this study, six transverse sections of femoral cortical bone were subjected to multiple freeze∕thaw cycles and probed using a custom Raman micro... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 9,015 |
We demonstrate the use of a laser trap (‘optical tweezers’) and back-focal-plane position detector to measure rapid rotation in aqueous solution of single particles with sizes in the vicinity of 1 μm. Two types of rotation were measured: electrorotation of polystyrene microspheres and rotation of the flagellar motor of... | Green biflagellated microalgae have proven to be of interest in biotechnology and biomedicine due to the production of lipids, carotenoids, and other components that have an environment dependent yield. In this work, we use back focal plane interferometry to obtain information about the behavior of microalgae held by a... | Berzelius failed to make use of Faraday's electrochemical laws in his laborious determination of equivalent weights. | eng_Latn | 9,016 |
A simultaneous measurement technique for the velocity and pH distribution was developed by using a confocal microscope and a 3CCD color camera for investigations of a chemical reacting flow field in a microchannel. Micron-resolution particle image velocimetry and laser induced fluorescence were utilized for the velocit... | The present paper summarizes our recent research in combined laser-based measurement techniques for investigating micro- and nanoscale transport phenomena. Micrometer-resolution particle image velocimetry has been combined with the laser-induced fluorescence (LIF) technique in order to simultaneously analyze velocity a... | We prove that groups acting geometrically on delta-quasiconvex spaces contain no essential Baumslag-Solitar quotients as subgroups. This implies that they are translation discrete, meaning that the translation numbers of their nontorsion elements are bounded away from zero. | eng_Latn | 9,017 |
Two-dimensional electronic systems play a crucial role in modern electronics and offer a multitude of opportunities to study the fundamental phenomena at low dimensional physics. A quantum well heterostructure based on polyaniline (P) and iodine doped polyaniline (I) thin films were fabricated using radio frequency pla... | Theory photochromics and electrochromics piezoelectric and pyroelectronic materials liquid crystals and devices organics for nonlinear optics conducting polymers charge transfer complexes LB films magnetism ion transport/biological systems biosensors biomolecular optoelectronics STM/APM molecular electronic logic and a... | Polyamines (PAs) are natural compounds involved in many growth and developmental processes in plants, and, specifically in fruits, play a vital role regulating its development, ripening and senescence processes. Putrescine (PUT), spermine (SPE), and spermidine (SPD) are prominent PAs applied exogenously to extend shelf... | eng_Latn | 9,018 |
Highly sensitive electrochemical luminescence determination of thiamine | Abstract A highly sensitive electrochemical luminescence (ECL) method has been developed for the determination of thiamine based on electrochemically oxidizing thiamine with rhodamine B as a sensitizer. A weak ECL signal of thiamine was electrochemically generated on a platinum electrode in an alkaline solution and str... | This paper describes the use of a thermochromic material (2,4,5-triphenylimidazole or also called Lophine) for the fabrication of temperature optical fiber sensors. First, an experimental study of this material at different temperatures is presented and subsequently its behavior in two different schemes (variations of ... | eng_Latn | 9,019 |
Use of β-cyclodextrin bonded phase with s-triazine moiety in the spacer for separation of aromatic carboxylic acid isomers by high-performance liquid chromatography | Abstract The separation and retention behavior of five aromatic carboxylic acid isomers was investigated by means of high-performance liquid chromatography (HPLC) using a β-cyclodextrin bonded phase with s -triazine ring in the spacer. The influence of mobile phase pH on the retention was examined. The presence of s -t... | This paper reports on the development of optically based techniques to detect and identify chemical agents. Detection ::: sensitivity and molecule discrimination are studied. In parallel, efforts are made to develop rugged and compact ::: experimental designs that can be used for field measurements. Laser Induced break... | eng_Latn | 9,020 |
Chemiresistive metal-stabilized thiyl radical films as highly selective ethylene sensors | A highly selective chemiresistive ethylene sensor based on reversible and selective ligand-centered substrate binding to a metal-stabilized thiyl radical has been developed. The solid-state device efficiently differentiates between ethylene and other alkene analytes. The sensor is prepared by simple dropcast deposition... | Interfaces are ubiquitous in important natural and manmade materials. Research evidence has shown that interface chemistry, structure, and thickness together strongly influence material microstructure and mechanical properties. The focus of the present work is on presenting an experiment based theoretic advancement to ... | eng_Latn | 9,021 |
Nano Molecular Motor of Azo Antibiotics on Edge-Carboxylated Graphene: A UV and Visible-Switchable Sensors | In this work, halogenated azobenzene and alpha cyclodexterin (αCD) are simulated as an axle and a wheel respectively, while the edge carboxylated graphene sheet (ECG) is a stopper. Azobenzene onto αCD and combination with ECG can be used such a non-covalent system for photo-isomer-controlled machine. It has been exhibi... | We have investigated the impact of organic contaminants from the environment on the electrical characteristics of gate oxides by evaluation of electrical characteristics of metal oxide semiconductor (MOS) capacitors and gas chromatography-mass spectrometry following thermodesorption (TD-GC/MS) analysis of organic speci... | eng_Latn | 9,022 |
Electrical and dielectric analysis of lithium chloride mixed sodium and lithium phosphate glasses | Glasses with molar composition 2xLiCl–(40−x)Na2O–(40−x)P2O5–20Li2O, where 0 ≤ 2x≤7 (mol%), were prepared by the melt-quenching method. The synthesized glasses were characterized by X-ray diffraction, which confirmed their amorphous nature. The glass transition temperature and crystallization temperature of the samples ... | The present invention is directed to phosphatidylinositol or lysophosphatidylinositol concentration indicators relates to efficacy evaluation method of a medicament having a therapeutic or prophylactic effect for a disease EL activity is associated. Further, the present invention relates to a kit for use in screening m... | eng_Latn | 9,023 |
Assessment of English Language Learners with Learning Disabilities | Abstract Identifying English language learners (ELLs) with learning disabilities has become very important in education settings so that appropriate educational services can be provided to this group of students. Linguistic diversity may increase the measurement error and reduce the reliability of assessments. This art... | This paper reports on the development of optically based techniques to detect and identify chemical agents. Detection ::: sensitivity and molecule discrimination are studied. In parallel, efforts are made to develop rugged and compact ::: experimental designs that can be used for field measurements. Laser Induced break... | eng_Latn | 9,024 |
Learning 3D structure from 2D images using LBP features | An automatic machine learning strategy for computing the 3D structure of monocular images from a single image query using Local Binary Patterns is presented. The 3D structure is inferred through a training set composed by a repository of color and depth images, assuming that images with similar structure present simila... | This paper reports on the development of optically based techniques to detect and identify chemical agents. Detection ::: sensitivity and molecule discrimination are studied. In parallel, efforts are made to develop rugged and compact ::: experimental designs that can be used for field measurements. Laser Induced break... | eng_Latn | 9,025 |
The extraction and photometric determination of zinc in the presence of large amounts of cadmium using 1-(2-Pyridylazo)-2-naphthol (PAN) and employing iodide masking | Abstract The zinc in high purity cadmium is determined photometrically as the PAN complex after extraction into chloroform. Massive amounts of potassium iodide are added to the sample solution to mask cadmium. Copper, mercury, lead, and silver are also masked by the iodide. Some cyanide is added which effects masking o... | For decades, plasmonic nanostructures have been used as important optical sensing platforms, however, the necessity of sensitive optical instruments for detection greatly limits their practical application. Herein, a multi-responsive naked eye plasmonic indicator has been prepared through introduction of a responsive p... | eng_Latn | 9,026 |
Initial optimization of integrated capillary electrophoresis chip separation of urine proteins | Objective:To investigate the initial optimization of integrated capillary electrophoresis chip for rapid separation of urine proteins. Methods:Separating voltage(1 200～2 000V), injection time(10～30s) and ethylamine concentration(0.5～2% (v/v))were integratively evaluated to select the optimal condition of separating uri... | A new modeling method based on sample data is described in this paper,through physics and sample date analysis on displacement vs.voltage characteristics of x-y plane of cylindrical piezoelectric scanner used in scanning probe microscope(SPM).Through sample data statistical analysis,and considering the error factors su... | eng_Latn | 9,027 |
Cinemicrographic observations on the trophoblast and zona pellucida of the mouse blastocyst | The mammalian ovum is surrounded by a secondary membrane, the zona pellucida, which is produced by the follicle cells round the ovarian oocyte. The major constituents of this membrane are neutral or weakly acidic mucoproteins, and it is sensitive to dissolution by a variety of proteases, depending on species (Gwatkin, ... | Aims: To design a simple method for the detection of microbe–immune complexes exploiting the optical and elastic properties of a biocompatible liquid crystalline material. ::: ::: ::: ::: Methods and Results: Aqueous solution of disodium cromoglycate (DSCG), a lyotropic chromonic liquid crystal (LCLC), was aligned in a... | eng_Latn | 9,028 |
The synthesis and fluorescence of a new biphenyl ethylene derivative sensitive to DNA induced by single- and two-photon excitation | Abstract A new biphenyl ethylene derivative, 4,4′-bis-(2-(4- N -ethyl- N -ethoxyl-amino) styryl] biphenyl (BEEASP) was successfully synthesized and studied as a potential fluorescent probe of DNA detection. The linear absorption and fluorescent spectra of the dye in different solvents were investigated. The absorption,... | The present invention provides a photosensitive resin composition and a method for forming an organic film on the substrate used. Since the photosensitive resin composition used for embossing comprises erythritol alcohol monomer or oligomer, and thus the organic film made of the photosensitive resin composition is form... | eng_Latn | 9,029 |
Solvent-temperature perturbations of ionizable groups as a tool for the investigation of the active site of enzymes. | Co-solvent and temperature effects on the pK of histidine (imidazolium) residue 46 of trypsin, as well as of weak electrolytes (buffers), which have been reported in two preceding papers, can be satisfactorily explained in terms of enthalpy-entropy compensation patterns. Such patterns have been generated for various mi... | A novel photodetector based on a silicon-on-insulator (SOI) substrate is demonstrated experimentally in this work. The device uses the interface coupling effect in an SOI transistor structure to amplify the photocurrent, and thus achieves extremely high responsivity up to 6×104 A/W. The responsivity of the device under... | eng_Latn | 9,030 |
Submicron Contact X?ray ExpoSure Alignment system | The design principle of a contact X?ray exposure alignment system is introduced.The Key parts of the system,such as precise adjustable stage,micro displacement control and optical alignment subsystem,are described in detail and the precision of the system is analyzed. | Soluble starch as raw materials and Span60 and Tween 60 as complex emulsifier, N,N'-methylene-acrylamide (MBAA) crosslinker, in the inverse suspension system to trigger K2S2O8 -NaHSO3 Synthesis ofneutral starch microspheres, and then ether agent GTA starch microspheres and neutral response system in the cationic starch... | kor_Hang | 9,031 |
Development of low-resistance TiO_2-based gas sensor to trimethylamine | Titanium is a good sensitive material to trimethylame (TMA),while the sensor made from which has an apparent shortcoming:too high electrical resistance.Annealing in different ambience and doping are applied to improve the conductivity of TiO 2 -based materials.A new type low-resistance sensitive element with excellent ... | Organic contamination adsorbed on 200 mm silicon wafers was characterized using various analytical techniques. Surface hydrophobicity, apparent optical thickness and electrical surface charge are used to characterize the silicon surface state. They only give information on total organic contamination. MIR-FTIR is very ... | eng_Latn | 9,032 |
Implementation of an Alternative Method for The Detection and Temporal Correlation of Spontaneous Parametric Down Converted Photons with Single Photon Counters | We propose an alternative method for the detection of SPDC photons and their temporal correlations. all this doing mainly by photon counters,a BBO crystal type II, a PBS and taking counts on fundamental points (Control points). | Cytochrome c protein thin film shows high temperature coefficient of resistance (TCR). In this paper, we studied the characteristics of cytochrome c protein, whose absorption rate is 65% at wavelengths of 10 μm. We designed a chip for an infrared microbolometer with suspended aluminum electrodes. The protein solution w... | eng_Latn | 9,033 |
Development of Blood Capillary Glass Electrodes for Use in Medical Electronics | Blood capillary glass electrode, a recent development in medical electronics is used in conjunction with anaesthesia monitoring equipment to observe and record the hydrogen ion concentration of blood, particularly when the patient undergoes a surgical operation. With a view to develop the electrode, a systematic invest... | Abstract Literature sources on metal-organic materials encapsulating versatile porphyrinoids and heme enzymes have been discussed in this review. General fundamentals and structural and chemical requisites of these architectures are discussed in introduction followed by historical perspectives of the initial composites... | eng_Latn | 9,034 |
An IMPLICATION logic gate based on citrate-capped gold nanoparticles with thiocyanate and iodide as inputs. | Herein we developed an IMPLICATION logic gate based on citrate-capped AuNPs by employing thiocyanate (SCN(-)) and iodide (I(-)) as inputs, and devised a colorimetric sensor for the determination of I(-) with good selectivity and sensitivity. To the best of our knowledge, this is the first example in which two species o... | Objective: To detect serum cTnI of rats. Methods: Myocardial injury of the rat was induced by isoprenaline. The serum cTnI of the rats was determined by sandwich enzyme immunoassay in which two cTnI-specific murine monoclonal antibodies were used. Results: The histological examinations of the myocardium showed alterati... | eng_Latn | 9,035 |
Anodic Photocurrent Generation by Porphyrin-Terminated Helical Peptide Monolayers on Gold | Photocurrent generation of porphyrin-terminated helical peptide self-assembled monolayers (SAMs) was studied in an aqueous solution. The anodic photocurrent was prevailing, but the cathodic photocurrent was observed with applying negative bias voltage on the working electrode. The bias dependence of the photocurrent wa... | Abstract In this report, micromagnetic simulations of magnetization dynamics driven by spin-polarized currents (SPCs) on magnetic nanopillars of permalloy/Cu/permalloy with different rectangular cross-sections are presented. Complete dynamical stability diagrams from initial parallel and antiparallel states have been c... | eng_Latn | 9,036 |
Laser direct-writing electrode for rapid customization of a photodetector | The interdigital Ag electrode is fabricated via a simple and fast approach called laser direct writing (LDW). The morphology and conductivity of electrode fingers are investigated systematically under different experimental parameters, including the laser spot size, laser power, and scanning speed. “Dose” describes the... | Introduction A successful fi rst structure refi nement of lysozyme [1] already proved the value of standard XRPD laboratory instruments for protein structure research. In this contribution we will present new measurements and crystallographic analysis results of insulin and insulin derivatives performed on data from a ... | eng_Latn | 9,037 |
Mechanisms of holographic recording in photopolymers | Overview of physical mechanisms of photopolymers formations for laser and holographic applications. | Custom synthesis of molecular imprinted polymers for biotechnological application. Preparation of a polymer selective for tylosin Sergey Piletsky*, Elena Piletska, Kal Karim, Graham Foster, Colton Legge, Anthony Turner a Institute of BioScience and Technology, Cranfield University, Silsoe, Bedfordshire, MK45 4DT, UK b ... | eng_Latn | 9,038 |
Simple Colorimetric Sensor for Trinitrotoluene Testing | A simple operating colorimetric sensor for trinitrotoluene (TNT) determination using a commercial scanner as a captured image was designed. The sensor is based on the chemical reaction between TNT and sodium hydroxide reagent to produce the color change within 96 well plates, which observed finally, recorded using a co... | For an emerging market a mass and cost-effective production of non-silicon micro devices requires an in-process and accurate 3D monitoring to assure the quality. Optical coherence tomography (OCT) ... | eng_Latn | 9,039 |
Decontamination of insecticides in natural drugs with supercritical carbon dioxide. | The lipophilic insecticides DDT and HCH in sennae leaves and pods are removable by extraction with supercritical carbon dioxide in the pressure region at 100 bar. The effective ingredients, the sennosides, are not extracted and remain in the drug of which they can be easily extracted with water. | Aims: To design a simple method for the detection of microbe–immune complexes exploiting the optical and elastic properties of a biocompatible liquid crystalline material. ::: ::: ::: ::: Methods and Results: Aqueous solution of disodium cromoglycate (DSCG), a lyotropic chromonic liquid crystal (LCLC), was aligned in a... | eng_Latn | 9,040 |
Digitally Controlled Micro-LED Array for Linear Visible Light Communication Systems | In a visible light communications (VLC) system, the frequency response of the light-emitting diode (LED) limits the signal bandwidth and, thus, becomes the bottleneck of the transmission data rate. The recent technology breakthrough of the micro-LED array has the potential to improve the modulation bandwidth of the LED... | This paper reports on the development of optically based techniques to detect and identify chemical agents. Detection ::: sensitivity and molecule discrimination are studied. In parallel, efforts are made to develop rugged and compact ::: experimental designs that can be used for field measurements. Laser Induced break... | eng_Latn | 9,041 |
Effects of theophylline on capillary tube leucocyte migration. | Theophylline stimulates the capillary tube migration of human peripheral blood mixed leucocytes. Minor stimulation of polymorph migration is produced directly by theophylline and dibutyryl cyclic AMP, | Properties of liquid crystal materials in THz frequency range can be interesting from application point of view. In this paper the influence of short and long molecules added to liquid crystal 6CHBT were investigated. Change of refractive indices and absorption coefficients for 6CHBT mixtures were compared in the 0.3 -... | eng_Latn | 9,042 |
Comprar Lewis' Child and Adolescent Psychiatry: A Comprehensive Textbook 4/e | Melvin Lewis | 9780781762144 | Lippincott Williams & Wilkins | Tienda online donde Comprar Lewis' Child and Adolescent Psychiatry: A Comprehensive Textbook 4/e al precio 220,50 € de Melvin Lewis, tienda de Libros de Medicina, Libros de Psiquiatria - Psiquiatria infantil y Juvenil | This paper reports on the development of optically based techniques to detect and identify chemical agents. Detection ::: sensitivity and molecule discrimination are studied. In parallel, efforts are made to develop rugged and compact ::: experimental designs that can be used for field measurements. Laser Induced break... | kor_Hang | 9,043 |
5 – Tissue engineering for small-diameter vascular grafts | This chapter discusses the current status of research in the field of vascular tissue engineering. The chapter first reviews the clinical need for tissue engineered blood vessels and the required characteristics of engineered vascular constructs. Subsequently, a variety of approaches for vascular tissue engineering are... | Flexible, millimetre-scale systems and devices require embedded, reliable micrometre-scale components, which can be challenging to achieve for optical sensors. Here, the authors design a photonic crystal nanolaser and demonstrate its use in measuring strain. | eng_Latn | 9,044 |
Photo-induced inactivation of viruses: adsorption of methylene blue, thionine, and thiopyronine on Qbeta bacteriophage. | The adsorption of cationic organic dyes (methylene blue, thionine, and thiopyronine) on Qbeta bacteriophage was studied by UV-visible and fluorescence spectroscopy. The dyes have shown a strong affinity to the virus and some have been used as sensitizers for photo-induced inactivation of virus. In the methylene blue co... | This paper reports a simple method for the multilayer immobilization of conjugated polymers, gold nanoparticles on solid supports. Poly(phenyenevinylene) functionalized with aldehyde and aminooxy groups was chemoselectively immobilized onto both glass and gold substrates via layer-by-layer deposition. The physical prop... | eng_Latn | 9,045 |
A New Reflecting Spectrograph Camera | The camera which has been developed consists of a spherical mirror and a corrector lens with spherical surfaces. The equivalent focal length is about 900 mm and the relative aperture is f/4. The design is based on the theory by Argentieri and becomes a camera of the nonconcentric type. The useful range of the camera is... | We report the observation of inhibited spontaneous emission of organic dye rhodamine 6G infiltrated in a polymer replica of synthetic opal as a photonic crystal. The morphology-dependent resonances, superimposed on the broadband emission of rhodamine 6G due to spherical wavelength-sized microcavity enhancement of dye e... | eng_Latn | 9,046 |
Automated Video Imaging System for Counting Deep-Sea Bioluminescence Organisms Events | Bioluminescence refers to the production of ecologically functional light by living organisms. It is widespread in the marine environment, where it occurs in a broad range of phyla. The deep pelagic ocean is the largest biome on earth and is chronically under-sampled. Underwater camera systems offer a rapid sampling me... | Organic materials for optical data storage applications is a fascinating and growing field of research [1]. Of special interest are liquid-crystalline polymers (LCPs), especially side chain polymers [2]. They have been proposed as optical recording media by many authors [3–6]. | kor_Hang | 9,047 |
A Study on Water Treatment Induced by Plasma with Contact Glow Discharge Electrolysis | Oxidative degradation of eight kinds of dyes induced by plasma in aqueous solution was investigated with contact glow discharge electrolysis (CGDE). It has been demonstrated that these eight dyes underwent degradation in CGDE, where Fe2+ could be utilised to raise the efficiency of degradation of dyes. | Aims: To design a simple method for the detection of microbe–immune complexes exploiting the optical and elastic properties of a biocompatible liquid crystalline material. ::: ::: ::: ::: Methods and Results: Aqueous solution of disodium cromoglycate (DSCG), a lyotropic chromonic liquid crystal (LCLC), was aligned in a... | eng_Latn | 9,048 |
Chemical image generation with a grid-gate device | Scanning light pulse technique generating distinctive chemical images of diverse gases is demonstrated using a sensing arrangement that allows unrestricted choice of sensing materials, disregarding its conductivity or morphology. The present device, a metal oxide semiconductor structure, disentangles biasing from chemi... | Pyro Q-CpG from Biotage gives a new dimension to DNA methylation studies by quantitatively measuring the individual degree of methylation of consecutive CpG sites consistently over time. This reveals previously unseen patterns of methylation. | eng_Latn | 9,049 |
Analyte capture in microfluidic heterogeneous immunoassays | Despite the prevalence of microfluidic-based heterogeneous immunoassays, there is incomplete understanding of analyte capture parameters. This study presents computational results and corresponding experimental binding assays of analyte capture. Our results identify: 1) a “reagent-limited” regime, under constraints of ... | An inexpensive circuit designed for polarographic measurement of dissolved H2 over a wide concentration range is described. Examples of its application to measurements of hydrogenase and nitrogenase activities are presented. | eng_Latn | 9,050 |
Influence of Mitotane on the Hypoprothrombinemic Effect of Warfarin | Mitotane (o,p'-DDD) is closely related to the organochlorine insecticides and shares their effects on drug metabolism. We have reported the first documented interaction of mitotane and warfarin in a human being. Because the potential for significant toxicity is great when mitotane and warfarin are used concomitantly, c... | A library of 256 differently doped thin films of (BaxSr1−x)TiO3 (where 0.5<x<1.0) was generated on a 1 in.×1 in. LaAlO3 substrate using multistep thin-film deposition techniques together with a quaternary masking strategy. Appropriate postannealing processing afforded high-quality epitaxial thin films. The microwave pr... | eng_Latn | 9,051 |
Low-intensity pulsed ultrasound in the treatment for stress fracture of young football athletes | The effect of low intensity pulsed ultrasound (LIPUS) on young football athletes with stress fracture is explored. Before and after treatments,the visual analog scores (VAS) and the evaluation of function are obtained. The results showed that with this treament for 4 weeks while all athletes keep training,the symptoms ... | This paper reports on the development of optically based techniques to detect and identify chemical agents. Detection ::: sensitivity and molecule discrimination are studied. In parallel, efforts are made to develop rugged and compact ::: experimental designs that can be used for field measurements. Laser Induced break... | eng_Latn | 9,052 |
Method and apparatus for indicating SPS deactivation | Method and apparatus for indicating SPS deactivation. It discloses a method and apparatus for performing semi-persistent scheduling (SPS) deactivation in a wireless mobile communication system. Station (BS) transmits a downlink control channel to the user equipment (the UE), and when a binary field indicating resource ... | The temperature at which solution is just complete for a known concentration of C.I. Disperse Yellow I dispersion in the presence of a surface active agent was measured using a hot-stage microscope. cell. A range of solubilities and temperatures were then obtained by varying the dye and surface active agent concentrati... | eng_Latn | 9,053 |
Deuterium MAS NMR Studies of Dynamics on Multiple Timescales: Histidine and Oxalic Acid | Deuterium ((2) H) magic-angle spinning (MAS) nuclear magnetic resonance is applied to monitor the dynamics of the exchanging labile deuterons of polycrystalline L-histidine hydrochloride monohydrate-d7 and α-oxalic acid dihydrate-d6 . Direct experimental evidence of fast dynamics is obtained from T1Z and T1Q measuremen... | Organic contamination adsorbed on 200 mm silicon wafers was characterized using various analytical techniques. Surface hydrophobicity, apparent optical thickness and electrical surface charge are used to characterize the silicon surface state. They only give information on total organic contamination. MIR-FTIR is very ... | kor_Hang | 9,054 |
Soluble polymer-supported catalysts | Soluble polymer-supported catalyst has received significant attention in "green" chemistry at the present days.The research progress in soluble polymer-supported catalysts,including soluble polyglycol,polyacrylamide,and non-crosslinking polystyrene supported catalysts,and their application in organic synthesis were sum... | A new Monte Carlo simulation tool, called PetDetSim and its experimental validation is presented. The simulation environment aims to model PET detectors and applies the Detect2000 code. Light output of LYSO and GSO crystal pins of different size and surface finish, covered with diffuse or specular reflectors was experi... | eng_Latn | 9,055 |
Liberation device controlled by the matrix. | A controlled release posology composition comprising: (a) a solid, substantially homogeneous dispersion comprising a low solubility drug dispersed in cellulosic polymer of hydroxypropylmethylcellulose acetate succinate, a main portion of said drug being amorphous; and (b) a water soluble cellulosic polymer matrix havin... | In this paper we present results of theoretical and experimental research of dynamic holographic system based on optically-addressed liquid crystal light modulator inside optical feedback loop, which provides asymmetrization of grating's profile. We use computer-based signal loop instead of pure optical link. This appr... | eng_Latn | 9,056 |
Biofilm prevention, destruction and treatment by bacteriophage lysin | FIELD: biotechnology. SUBSTANCE: methods include contacting of a biofilm comprising one or more of Staphylococcus or Streptococcus, with a composition comprising an effective amount of a lysin polypeptide comprising the amino acid sequence of SEQ ID NO: 1 or versions thereof having at least 80% identity to the SEQ ID N... | We study the dynamical dielectric function of a two-dimensional hole gas, exemplified on [001]-GaAs and InAs quantum wells, within the Luttinger model extended to the two lowest subbands including bulk and structure inversion asymmetric terms. The plasmon dispersion shows a pronounced anisotropy for GaAs- and InAs-base... | eng_Latn | 9,057 |
Surface functionalization of micro silver flakes and their application in electrically conductive adhesives for electronic package | Abstract In this study, we used 3-aminopropyltrimethoxysilane, hexanedioic acid, 3-mercaptopropyltrimethoxysilane, and thioglycolic acid to functionalize the surface of micro silver flakes through in-situ replacements. Hexanedioic acid had the best effect on the functionalization. When the content of hexanedioic acid w... | 'Touch' or trace cell mixtures submitted as evidence are a significant problem for forensic laboratories as they can render resulting genetic profiles difficult or even impossible to interpret. Optical signatures that distinguish epidermal cell populations from different contributors could facilitate the physical separ... | eng_Latn | 9,058 |
tdkp/AQUA: Unified modelling of electroluminescence in nanostructures | This article summarizes the capabilities of the optoelectronic simulation framework tdkp/AQUA aimed at the description of electroluminescence in semiconductor nanostructures such as light-emitting diodes (LEDs). tdkp is a standalone finite-element software able to accurately calculate strain, built-in fields due to spo... | Refrigeration of the volatile oil of Nigella sativa L. seeds eventuates in a crystalline substance. The chemical structure of the compound was drawn from its chemical behaviour, as well as from its UV, IR, PMR and mass spectral data. The compound was found to be thymohydroquinone: confirmation of the structure was esta... | eng_Latn | 9,059 |
Comparison of efficacy and immunogenicity of original versus current botulinum toxin in cervical dystonia | The authors compared 130 patients treated for cervical dystonia with original botulinum toxin (BTX) type A (Botox; Allergan, Inc., Irvine, CA), 42 of whom were exposed only to the original BTX type A used before 1998 (25 ng protein/100 units), and 119 treated only with the current BTX type A (5 ng of protein/100 units)... | Aims: To design a simple method for the detection of microbe–immune complexes exploiting the optical and elastic properties of a biocompatible liquid crystalline material. ::: ::: ::: ::: Methods and Results: Aqueous solution of disodium cromoglycate (DSCG), a lyotropic chromonic liquid crystal (LCLC), was aligned in a... | eng_Latn | 9,060 |
THE FIRST APPLICATION OF DOPPLER-FREE LASER POLARIZATION AND OPTICAL-OPTICAL DOUBLE RESONANCE POLARIZATION LABELING SPECTROSCOPIES TO A LARGE MOLECULE | Author Institution: Molecular Photoscience Research Center, Kobe University; Fachbereich Physik, Universit\""{a}t Kaiserslautern; Faculty of Integrated Human Studies, Kyoto University | The photosensitized oxidation of single bilayer vesicles of egg-yolk lecithin by singlet oxygen is investigated. The isotopic enhanced lifetime of singlet oxygen in heavy water, and the inhibitory effect of azide ions, are both used to examine the O2(1Δg) diffusion characteristics. The rate of photo-oxidation of unsatu... | yue_Hant | 9,061 |
Microfluidics and Surface-Enhanced Raman Spectroscopy: A Perfect Match for New Analytical Tools | In this perspective article, we emphasize the combination of Surface-Enhanced Raman Spectroscopy (SERS) and Microfluidic devices. SERS approaches have been widely studied and used for multiple applications including trace molecules detection, in situ analysis of biological samples and monitoring or, all of them with go... | Abstract A semi-stochastic model for field problems is presented. The model uses a correlative scheme for the estimation of physical parameters and an uncertainty finite element analysis to estimate the statistical properties of the solution process. A comparison is made with a regression-finite element model which ind... | eng_Latn | 9,062 |
Slow-release granisetron (APF530) versus palonosetron for chemotherapy-induced nausea/vomiting: analysis by American Society of Clinical Oncology emetogenicity criteria | Background: APF530 is a novel sustained-release formulation of granisetron. In a Phase III trial, APF530 500 mg was noninferior to palonosetron 0.25 mg in preventing acute chemotherapy-induced nausea and vomiting (CINV) after moderately (MEC) or highly emetogenic chemotherapy (HEC) and delayed CINV after MEC, but not s... | For decades, plasmonic nanostructures have been used as important optical sensing platforms, however, the necessity of sensitive optical instruments for detection greatly limits their practical application. Herein, a multi-responsive naked eye plasmonic indicator has been prepared through introduction of a responsive p... | eng_Latn | 9,063 |
Use of the phage display technique for detection of epitopes recognized by polyclonal rabbit gliadin antibodies | Abstract A random phage heptapeptide library was screened with rabbit antibodies against wheat flour proteins comprising gliadins and a small amount of low molecular weight glutenins (gli/glu). Gli/glu antibodies isolated from the sera selected different consensus sequences (CS). All CS contained tri- to pentapeptide s... | We have numerically demonstrated that electrically tuneable directional coupling and switching can be realized based on the multimode interference effect in dielectric-loaded graphene plasmon waveguides (DLGPWs) of our own design. The total field profile resulting from a superposition of all guided modes in the multimo... | eng_Latn | 9,064 |
Monocrystalline gallium-containing nitride obtained by the process and method of monocrystalline gallium-containing nitride | To obtain the alkali metal (IUPAC, 1989) monocrystalline gallium-containing nitride gallium-containing feedstock in the environment of supercritical ammonia-containing solvent obtained by adding a mineralizer containing a method of interest in the autoclave to generate two temperature zones, one a dissolution zone of l... | Scanning light pulse technique generating distinctive chemical images of diverse gases is demonstrated using a sensing arrangement that allows unrestricted choice of sensing materials, disregarding its conductivity or morphology. The present device, a metal oxide semiconductor structure, disentangles biasing from chemi... | eng_Latn | 9,065 |
InAs quantum wires in InP-based microdisks: Mode identification and continuous wave room temperature laser operation | We present the design, fabrication, and characterization of an optical microsource, which comprises InAs/InP quantum wires embedded in a suspended microdisk. Comparison between photoluminescence measurements and theoretical analysis allows for a clear identification of the whispering gallery modes. cw room temperature ... | The discrimination of noncolored transparent polyethylene bags was studied by several nondestructive and semidestructive analytical methods. X-ray diffraction, infrared spectroscopy, and optical microscopy (differential interference contrast microscopy and phase contrast microscopy) were applied to polyethylene films. ... | eng_Latn | 9,066 |
Dielectric properties of α-d-glucose aqueous solutions at 2450 MHz | Abstract Using a cavity perturbation technique, dielectric properties of α- d -glucose aqueous solution at 2450 MHz were measured at concentrations ranging from 10 to 60% in the temperature range of 0–70 °C. Dielectric constant increases with temperature in a quadratic manner while linearly decreasing with glucose conc... | Abstract Polyacrylamide gel electrophoresis in discontinuous buffer systems often gives very narrow zones. This technique involves some disadvantages, however, which are discussed. Although our experience so far is rather limited, it would indicate that the resolving power is independent of whether a continuous or disc... | eng_Latn | 9,067 |
Dermatology Life Quality Index (DLQI) as a psoriasis referral triage tool | Most primary care psoriasis referrals in the UK are triaged as ‘routine’, in part because of the prioritisation of skin cancer. As a result, patients with severe psoriasis may wait several months to be seen, enduring quality of life (QoL) impairment that could have been reduced. Furthermore some patients may spontaneou... | ABSTRACTThe transistor size needs to be reduced as the pixel density of the organic light-emitting diode (OLED) display increases for mobile application. Drain-induced barrier lowering (DIBL), however, hinders the further channel length reduction of low-temperature polycrystalline silicon (LTPS) thin-film transistors (... | eng_Latn | 9,068 |
Enhanced resonance light scattering based on biocatalytic growth of gold nanoparticles for biosensors design | Abstract The biocatalytic growth of gold nanoparticles (Au-NPs) has been employed in the design of new optical biosensors based on the enhanced resonance light scattering (RLS) signals. Both absorption spectroscopy and transmission electron microscopy (TEM) analysis revealed Au-NP seeds could be effectively enlarged up... | Abstract : The ARO Center of Excellence in Biotechnology was established within the Cornell University Biotechnology Program in 1986. The research focus of the Center was protein structure and function, with special emphasis on enzymes and receptors. Research projects funded through the Center represented a multidiscip... | eng_Latn | 9,069 |
A novel etching-oxidation fabrication method for 3D nano structures on silicon and its application to SOI symmetric waveguide and 3D taper spot size converter | A novel etching and oxidation method utilizing space effect of dry etching for three dimensional silicon structure is presented. Testing devices of SOI symmetric waveguide with ultra thick SiO2 cladding and silicon waveguide structure integrated with 3D taper spot size converter are fabricated using this method. | Rat liver S-adenosylmethionine synthetase, high- and low-Mr forms, are regulated in vitro by the GSH/GSSG ratio at pH 8. The inhibition and oxidation constants for both forms have been calculated in the presence of thioltransferases. The mechanism of the reaction appeared to involve the formation of intramolecular disu... | eng_Latn | 9,070 |
lacThiogalactoside Transacetylase ofEscherichia coli K-12 andML | byusing several criteria. Thesubunit molecular weight oftheenzyme is24,800, whichissignificantly lessthanthepreviously reported value of30,000. Although thefunction ofthethiogalactoside transacetylase isunknown, itissuggested thatthis enzyme plays an important rolein lactose utilization since its structure andenzymatic... | This paper reports on the development of optically based techniques to detect and identify chemical agents. Detection ::: sensitivity and molecule discrimination are studied. In parallel, efforts are made to develop rugged and compact ::: experimental designs that can be used for field measurements. Laser Induced break... | ast_Latn | 9,071 |
Localization of acetylcholine receptors and synaptic ultrastructure at NerveMuscle contacts in cult | Color video images are remotely painted on the screen of a conventional color television receiver or a video monitor utilizing electronic color image storage means in a control device. The control device comprises a manual input unit, an image or picture element memory, a palette or color memory controllable independen... | This work benchmarks density functional theory, with several different exchange-correlation functionals, for prediction of isotropic one-bond phosphorus-hydrogen NMR spin-spin coupling constants (SSCCs). Our test set consists of experimental SSCCs from 30 diverse molecules representing multiple phosphorus bonding envir... | eng_Latn | 9,072 |
Simultaneous electrochemical and 3D optical imaging of silver nanoparticle oxidation | The oxidation of AgNPs at a thin-film gold electrode is simultaneously investigated via digital holography and electrochemistry. The use of holography allows, for the first time, the 3D visualization of the electrochemical interfacial region at a relatively high acquisition rate. It is demonstrated how the coupling of ... | Unibond SOI wafers, made by the Smart Cut process, were significantly distorted during processing with an established bulk silicon wafer CMOS process. The cause of distortion upon examination of routine photolithography overlay error measurement data was attributed to the use of a RTA process which was not optimized fo... | eng_Latn | 9,073 |
An improved crescent electrode in electrowetting-based microfludic | Electrode is a vital component in the digital microfludic based on electrowetting on dielectric(EWOD), in order to improve the driving performance, this paper proposed a novel improved crescent electrode shape, establish the EWOD device model through the finite element method(FEM) to compute the driving force of the dr... | Chlortetracycline fluorescence patterns were assessed in epididymal mouse sperm suspensions capacitated in exogenous substrate-containing and substrate-free media. | eng_Latn | 9,074 |
Recent update on anti-dengue drug discovery | Dengue is the most important arthropod-borne viral disease of humans, with more than half of the global population living in at-risk areas. Despite the negative impact on public health, there are no antiviral therapies available, and the only licensed vaccine, Dengvaxia®, has been contraindicated in children below nine... | Aims: To design a simple method for the detection of microbe–immune complexes exploiting the optical and elastic properties of a biocompatible liquid crystalline material. ::: ::: ::: ::: Methods and Results: Aqueous solution of disodium cromoglycate (DSCG), a lyotropic chromonic liquid crystal (LCLC), was aligned in a... | eng_Latn | 9,075 |
Impact of selective ablation of self-assembly monolayer by localized Joule heating on silicon nanoelectronic sensors | Silicon nanodevice biosensors have been attracted a lot of attention due to its advantages of label-free, real-time and very high sensitive detection. This study employs self-assembly monolayer (SAM) of methoxy-poly(ethyleneglycol) silane (MPEG-sil) as passivation on Si nanodevices. Ablation of SAM by Joule heating (JH... | For the early diagnosis of several diseases, various biomarkers have been discovered and utilized through the measurement of concentrations in body fluids such as blood, urine, and saliva. The most representative analytical method for biomarker detection is an immunosensor, which exploits the specific antigen-antibody ... | eng_Latn | 9,076 |
Multiple Differential Aperture Microscopy | Differential-aperture X-ray microscopy (DAXM) is a powerful approach to 3D tomography with particular relevance to X-ray microdiffraction. With DAXM, scattering from submicron volumes can be resolved. However, the method is intrinsically a scanning technique where every resolved volume element (voxel) requires at least... | Abstract In microporous materials quantum effects in molecular adsorption and transport become of importance if the difference between pore diameter and the molecular hard core is no longer large compared to the de Broglie wavelength of radial motion. Two aspects are discussed: the freezing of the radial degrees of fre... | eng_Latn | 9,077 |
[Laboratory diagnosis of a rare congenital neurodegenerative disease: cerebrotendinous xanthomatosis]. | Cerebrotendinous xanthomatosis is a rare neurodegenerative disease characterized by the accumulation of cholesterol and cholestanol in the brain and the tendons caused by mutations of the gene encoding sterol 27-hydroxylase (CYP27A1), which is involved in bile acid synthesis. The diagnosis is often missed and delayed b... | Aims: To design a simple method for the detection of microbe–immune complexes exploiting the optical and elastic properties of a biocompatible liquid crystalline material. ::: ::: ::: ::: Methods and Results: Aqueous solution of disodium cromoglycate (DSCG), a lyotropic chromonic liquid crystal (LCLC), was aligned in a... | eng_Latn | 9,078 |
Quantitative Label-Free Characterization of Avidin-Biotin Assemblies on Silanized Glass | In this study, a time-of-flight secondary ion mass spectrometer TOF-SIMS, operating in the event-by-event bombardment/detection mode was used to characterize avidin–biotin assemblies on silane-modified glass substrates. SIMS was used to analyze several variants of the biointerface, including avidin physically adsorbed ... | The standards for testing quinoline insoluble(QI) content were developed by ISO,ASTM,our national and export standard departments.The differences and the gaps of the above standards were studied and analyzed in this article,and the research situation of the method of quinoline insoluble was discussed as well.Finaly,the... | eng_Latn | 9,079 |
Plasma and amniotic fluid concentrations of fibronectin during normal and post term pregnancy. | Fibronectin is a plasma glycoprotein which is involved in coagulation, platelet function, tissue repair and the vascular endothelial basement membrane. Increase of plasma fibronectin levels in pre-eclamptic patients have been previously reported. There have been no reports however regarding plasma fibronectin levels du... | A 0.6V pulse frequency modulation (PFM) CMOS Image Sensor (CIS) array with in-pixel biphasic current pulse driver is presented in this paper. It achieves a photon-to-biphasic current conversion for biomedical applications like artificial 2-D vision recovery. The photon-to-biphasic-current conversion gain, the biphasic ... | eng_Latn | 9,080 |
Applications of Morpho-Butterfly's Strange Blue based on Nano-Randomness | Structural color of some blue Morpho butterflies has a physically mysterious feature from viewpoint of optics. We have recently proven the principle of the mystery by fabricating the specific structures by extracting the physical essence. The key was exquisite combination of both regular and irregular structures at nan... | As a result of the first study on secondary metabolites from the cosmopolitan bioluminescent marine tube polychaete Chaetopterus variopedatus, a new bicyclic guanidine alkaloid, 6-epi-monanchorin (1), along with the previously known monanchorin (2) were isolated. The structure of 1 was elucidated by... | eng_Latn | 9,081 |
Calcium ions effectively enhance the effect of antisense peptide nucleic acids conjugated to cationic tat and oligoarginine peptides. | Cell-penetrating peptides have been widely used to improve cellular delivery of a variety of proteins and antisense agents. However, recent studies indicate that such cationic peptides are predominantly entering cells via an endosomal pathway. We now show that the nuclear antisense effect in HeLa cells of a variety of ... | Dataset for Skin-deep Patterning of Calcite. From the data in this file, we show that calcite surface patterning changes with experimental conditions, additive concentrations, time, additive mixtures and additive chemistry. As a model additive, we used a cement protein cp20k, to develop a range of surface patterns such... | eng_Latn | 9,082 |
Extraction of lignin from black liquor by desulfonation | Extraction of lignin from sulfite pulping waste liquor was investigated.The extraction rate of lignin from black liquor by desulfonation increased in comparison with that without desulfonation.Then the influence of 15% H2SO4,precipitation time,precipitation temperature on the separation of lignin from black liquor by d... | Aims: To design a simple method for the detection of microbe–immune complexes exploiting the optical and elastic properties of a biocompatible liquid crystalline material. ::: ::: ::: ::: Methods and Results: Aqueous solution of disodium cromoglycate (DSCG), a lyotropic chromonic liquid crystal (LCLC), was aligned in a... | eng_Latn | 9,083 |
Fast and precise subthreshold slope method for extracting gate capacitive coupling coefficient in flash memory cells | A fast and precise subthreshold slope method for extraction of gate capacitive coupling coefficient is substantially confirmed by experimental data from three types of flash memory cells: stacked gate, sidewall source-side injection (SSI), and split-gate cells. This new method furnishes promising potentials: (i) it can... | Abstract Peptide and protein samples are often complex mixtures that contain a number of individual compounds. The initial HPLC separation of such samples typically results in the poor resolution of one or more band pairs. Various means have been suggested tor varying separation selectivity so as to minimize this probl... | eng_Latn | 9,084 |
A CCD spectrophotometer to quantitate the concentration of chromophores in living tissue utilising the absorption peak of water at 975 nm. | Optical spectroscopy has long been used to study the oxygenation of living tissue in-vivo. It is possible to detect concentration changes of naturally occurring chromophores whose absorption spectra are affected by the presence of oxygen, such as haemoglobin and the cytochrome enzymes. | A tunable wavelength filter was proposed and demonstrated by using the ultraviolet nanoimprint technique. It consists of a Bragg grating in polymer waveguides and a heating electrode. The creation of the grating was substantially simplified with the introduction of a smart imprint stamp containing a waveguide pattern i... | eng_Latn | 9,085 |
DNA Markers for Identifying waxy Mutations and Improving Noodle Quality in Wheat | Approximately 70% of wheat endosperm consists of starch, and variations in the quality and quantity of starch affect the processing characteristics of wheat flour. Amylose content in particular has a major effect on Asian noodle quality, and selection of wheat lines with slightly lower amylose levels is an important go... | We report on using e-beam lithographically technology for enabling the mass replication of custom-designed ::: and prepared Nano-structures via establishing nanoimprint processes for pattern transfer into UV curable prepolymes. ::: By EBL, the new nano-fabrication technology based on the concept of disposal master tech... | eng_Latn | 9,086 |
Experiments on photophoresis and thermophoresis | Abstract An experimental technique has been developed for the precise measurement of radiometric forces. The results suggest that the photophoretic force due to sunlight on aerosol particles of approximately 0.5μ diameter in the upper atmosphere may be comparable with or larger than the particle weight. The thermophore... | By example of a web courseware for scanning tunneling microscopy that we developed, we compare and discuss traditional versus contemporary teaching methods in the odern Physics laboratory. | eng_Latn | 9,087 |
Studies on the Photoinduced Desorption of Ethanol Vapor from the Solid Surface of Some Ferrocene Derivatives | The photoinduced changes in solid samples of some ferrocene derivatives namely, ferrocenecarbaldehyde, ferrocenecarboxylic acid, and acetylferrocene with physically adsorbed ethanol vapor were monitored by electrical current measurements in sandwich cells. The decrease in current with time during illumination of light ... | Pyroelectric infrared sensor arrays are imaging devices for infrared radiation that utilize the temperature dependence of the remanent in polarization in pyroelectric materials. We use the finite element method for the calculation of the coupled thermo-electro-mechanical fields for an instance of a linear sensor array,... | eng_Latn | 9,088 |
Uncooled long-wavelength infrared sensor using cytochrome c protein on CMOS read-out circuits | Cytochrome c protein thin film shows high temperature coefficient of resistance (TCR). In this paper, we studied the characteristics of cytochrome c protein, whose absorption rate is 65% at wavelengths of 10 μm. We designed a chip for an infrared microbolometer with suspended aluminum electrodes. The protein solution w... | Red kojic rice is a traditional food additive in China and the chymosin produced by microorganisms was proved to have the function of coagulating milk.A high chymosin producing strain,named M5 was screened through the Petri dishes method and Arima technique.In addition,the optimal fermentation conditions of M5 were obt... | eng_Latn | 9,089 |
Identification and Characterization of a New Class of (6–4) Photolyase from Vibrio cholerae | Light is crucial for many biological activities of most organisms, including vision, resetting of circadian rhythm, photosynthesis, and DNA repair. The cryptochrome/photolyase family (CPF) represents an ancient group of UV-A/blue light sensitive proteins that perform different functions such as DNA repair, circadian ph... | Aims: To design a simple method for the detection of microbe–immune complexes exploiting the optical and elastic properties of a biocompatible liquid crystalline material. ::: ::: ::: ::: Methods and Results: Aqueous solution of disodium cromoglycate (DSCG), a lyotropic chromonic liquid crystal (LCLC), was aligned in a... | eng_Latn | 9,090 |
Photometric Calibration of the Optical Monitor | Current status of the photometric calibration of the OM will be reviewed, including (i)throughput curves, (ii)coincidence losses, (iii)zero points, (iii)colour ransformations in the optical filters, (iv)photometric accuracy. | Abstract : The objectives of this report are 1. Production of an antiserum against melanopsin, a putative circadian photoreceptor, permitting analysis of its expression pattern in mammalian retina. 2. Heterologous expression of melanopsin using recombinant baculovirus for a first characterization of its biochemical pro... | eng_Latn | 9,091 |
Octaethylporphin films. II absorption and emission of amorphous films | Amorphous thin films of octaethylporphin have been prepared and are observed to crystallize over time if thicker than about 100 nm. Transmission spectra of amorphous films have a sharper Soret band than transmission spectra of crystalline films and lack the exciton band seen in crystalline films. The exciton band can b... | We will present the design of a greatly simplified acousto-optic (A/O) scanning system which allows a change of wavelength in less than a second (and in principal between 2 TV lines). A/O deflectors now available with a 9.3 mm circular entrance pupil (rather than the 2 mm X 12 mm pupils previously used) eliminate the n... | eng_Latn | 9,092 |
Photographic Image Enhancement Using Chemical Treatment Techniques | Methods of enhancing underdeveloped, underexposed, or low optical density regions of properly exposed silver halide images using chemical treat ment techniques are reviewed and discussed. These procedures consist of modifying the transmission or emission characteristics of the original negative. Transmission methods in... | Thank you for reading environmental biotechnology reducing risks from environmental chemicals through biotechnology. Maybe you have knowledge that, people have search hundreds times for their favorite novels like this environmental biotechnology reducing risks from environmental chemicals through biotechnology, but end... | kor_Hang | 9,093 |
THE PROTECTION OF THE EYE LENS IN TELECOBALT THERAPY | The technique for indirect shielding of the eye situated within the irradiation field during telecobalt therapy is reported by using demonstrations of isodoses. The dose at the lens is approximately 10% of the maximum dose measured at electron equilibrium. Thls dose does not depend upon the arrangement of the shielding... | This paper reports on the development of optically based techniques to detect and identify chemical agents. Detection ::: sensitivity and molecule discrimination are studied. In parallel, efforts are made to develop rugged and compact ::: experimental designs that can be used for field measurements. Laser Induced break... | yue_Hant | 9,094 |
Structure and electrical properties of polycrystalline SiGe films grown by molecular beam deposition | The structural and electrical properties of polycrystalline Si0.5Ge0.5 films 150 nm thick grown by molecular beam deposition at temperatures of 200–550°C on silicon substrates coated with amorphous layers of silicon oxynitride were studied. It is shown that the films consist of a mixture of amorphous and polycrystallin... | Obtain the photonic crystal in the present invention according to obtain the photonic crystal comprises a uniform spherical porosity and a plurality of pores are formed around a spherical body filled with the medium to form a diffraction grating of the sphere, the pores are fixed bio-sensitive material to the inner sur... | eng_Latn | 9,095 |
Quantum Well Devices for Photonic Networks | Abstract : The first part of this report discusses a X-modulator, a powerful device in terms of optical computation, routing, and interconnection. The device is a 3 input, 3 output conservative and reversible switch, an optoelectronic Fredkin gate. Using arrays of these modulators, various reconfigurable switching, rou... | We report on the role of molecular diffusivity in the formation of nonlinearly growing polyelectrolyte multilayers (nlPEMs). Electrostatically bound polyelectrolyte multilayers were assembled from poly(methacrylic acid) (PMAA) as a polyanion and quaternized poly(2-(dimethylamino)ethyl methacrylate) (QPC) as a polycatio... | kor_Hang | 9,096 |
Hollow fiber liquid-supported membrane technology for enantioseparation of racemic salbutamol by combinatorial chiral selectors | Enantioseparation of salbutamol solute was carried out in liquid-supported membrane by using a polyvinylidene fluoride hollow-fiber module. The enantioselective transport of solute was facilitated by combinatorial chiral selectors, which were dissolved in toluene organic solvent. The effects of molar concentration rati... | Abstract By using a five pass Fabry-Perot interferometer we have observed Brillouin scattering from longitudinal sound waves in films of amorphous silicon prepared by glow discharge decomposition of silane. Both the sound velocity and the scattering efficiency are found to depend on the hydrogen content of the film. Fo... | eng_Latn | 9,097 |
Analysis and Design of High Power Factor LED Drivers without Electrolytic Capacitor | Thesis (Master, Electrical & Computer Engineering) -- Queen's University, 2013-04-30 13:22:28.471 | We show a platform that merges a microfluidic chip with lensless imaging for CD4+ T-lymphocyte counting at resource-limited settings. To capture CD4+ T lymphocytes, anti-CD4 antibody was immobilized on a microfluidic chip. The captured cells were detected by a charge coupled device (CCD) sensor using lensless shadow im... | eng_Latn | 9,098 |
Magnetic stability of massive star forming clumps in RCW 106 | The RCW 106 molecular cloud complex is an active massive star-forming region where a ministarburst is taking place. We examined its magnetic structure by near-IR polarimetric observations with the imaging polarimeter SIRPOL on the IRSF 1.4 m telescope. The global magnetic field is nearly parallel to the direction of th... | Aims: To design a simple method for the detection of microbe–immune complexes exploiting the optical and elastic properties of a biocompatible liquid crystalline material. ::: ::: ::: ::: Methods and Results: Aqueous solution of disodium cromoglycate (DSCG), a lyotropic chromonic liquid crystal (LCLC), was aligned in a... | eng_Latn | 9,099 |
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