Search is not available for this dataset
query stringlengths 1 13.4k | pos stringlengths 1 61k | neg stringlengths 1 63.9k | query_lang stringclasses 147
values | __index_level_0__ int64 0 3.11M |
|---|---|---|---|---|
Study on the Effect of Sodium Polyacrylate and its Compounds on Artificial Warm Fog Dissipation | Sodium polyacrylate as a kind of high absorbent resin, has an excellent water absorption performance, is low in price and isn’t corrosive. Compounds of different particle sizes and components were prepared using sodium polyacrylate and sodium chloride. They were used in the fog chamber to disperse warm fog respectively... | 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 | 9,100 |
MICROSCOPIC ORIGIN OF DIMERIZATION IN THE CUO2 CHAINS IN SR14CU24O41 | The interplay between structure and magnetic properties of Sr14Cu24O411d with CuO2 chain and Cu2O3 ladder building blocks is studied as a function of oxygen nonstoichiometry. The characteristic decrease in the magnetic susceptibility below 80 K for d'0 disappears both with increasing and decreasing d , and, correspondi... | 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... | yue_Hant | 9,101 |
Study on SiO_2-supproted Iron-based Catalysts in Ethylene Oligomerization | The 2,6-Bis(imino)-Pyridyl Ligands iron-based catalysts supported on SiO2 were prepared.The catalytic activity and selectivity of the system in ethylene oligomerization were studied under different supported temperature,reaction pressures,the amount of catalysts and propylene.The results showed that low supported tempe... | 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 | 9,102 |
Two-dimensional arrays self-assembled via interference of concentration modulation waves in drying solutions | The self-assembly of patterned nanostructures in solution-processed thin films with multiphase block-copolymers is successful. Generation of small and well-defined regular structures directly from single-phase polymer films is challenging. Here, a 2-dimensional (2D) patterned array of single-phase polymers was self-ass... | Nowadays, high-throughput analysis of biological events is a great challenge which could take benefit of the recent development of microarray devices. The great potential of such technology is related to the availability of a chip bearing a large set of probes, stable and easy to obtain, and suitable for ligand-binding... | eng_Latn | 9,103 |
Organic analysis with a new Ag+-selective membrane electrode | Abstract A new Ag + -selective membrane electrode obtained by impregnating a graphite rod (attached to the end of a Teflon tube) with the silver(I) chelate of 1-(2′,3′,5′-tri- O -benzoyl-β- D -ribofuranosyl)-4-thioxo-5-methylthio-6-azauracil dissolved in chloroform gives a stable and reproducible response to silver in ... | The present invention provides a sealing liquid which does not contain a nickel salt but is capable of achieving a sealing performance equivalent to that in cases where a sealing liquid containing a nickel salt is used, and which enables an anodic oxide coating film sealed therewith to exhibit excellent contamination r... | eng_Latn | 9,104 |
HOMOCYSTEINE AND HIGH SENSITIVITY C -REACTIVE PROTEIN IN PATIENTS WITH SYSTEMIC LUPUS ERYTHEMATOSUS, AND THEIR RELATION WITH DISEASES ACTIVITY AND CARDIOVASCULAR RISK FACTORS | Sedighy S (MD)*, Sadani S (MD), Rezaii Yazdi Z (MD), Hatef MR (MD) Tavakoli Afshar J (MD), Azarpazhoh MR (MD), Aghai M (MD), Esmaeili H (PhD) Assistant Professor, Department of Internal Medicine, Golestan University of Medical Sicneces, Gorgan, Iran. General Physician, Clinical Research Center, Golestan University of M... | Response of cholesteric sensor materials to biologically active UV radiation has been studied. The sensor mixture comprised a cholesteric liquid crystalline matrix doped with provitamin D, and changes in the maximum selective reflection wavelength λ max caused by the photochemical reaction of provitamin D → vitamin D t... | yue_Hant | 9,105 |
Laser-excited atomic fluorescence in a pulsed hollow-cathode glow discharge. | A pulsed glow discharge with low background noise is evaluated as an atom reservoir for laser-induced atomic fluorescence spectroscopy. Aqueous solutions are dried in graphite electrodes that are used as disposable hollow cathodes. Atomic vapor is produced in a flowing-gas glow discharge with a water-cooled cathode hol... | A supramolecular circularly polarized luminescence (CPL) system was constructed based on the co-gelation of an achiral tetraphenylethylene derivative and chiral organic gelators of glutamic acid in chloroform. Adjusting the stoichiometric ratio was found to be an effective strategy for regulating the handedness of CPL. | eng_Latn | 9,106 |
A Fixed Broadband Wireless Access Technology: LMDS | Local Multipoint Distribution Service (LMDS) is a rising technology of fixed broadband wireless access. With great transmission capacity, it is cost-effective and has aroused much attention of telecom operators all over the world. This paper describes the background and current status of the LMDS technology first, then... | 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 | 9,107 |
Health Effects of Alternate Disinfectants and Their Reaction Products | Chlorine dioxide and its organic reaction products may present a higher risk from acute toxicity than chlorine, combined chlorine, or ozone, but its use may be advantageou when the generation of possibly carcinogenic byproducts by other disinfectants is considered | In this paper, We report the design, modeling, fabrication and characterization MEMS Coulter counter which can monitor the dynamic cell impedance changes in situ as a function of time after mixing isolated cell populations with different extracellular media. The device consists of a multilayer of SU-8 microchannel whic... | eng_Latn | 9,108 |
Determination of Film Thickness and Anisotropy of the Refractive Indices in 4-octyl-4′-cyanobiphenyl Liquid Crystalline Free-Standing Films | The layer structure of 4-octyl-4'-cyanobiphenyl (8CB) liquid crystalline free-standing films (FSFs) was studied. By transmission ellipsometry using a photoelastic modulator (PEM), the incidence angle dependence of the phase difference was measured with high resolution. The theoretical characteristics in the smectic A (... | A method of manufacturing a strongly adherent coating on an inorganic or organic base, on a) an inorganic or organic base, low-temperature plasma treatment, subjected to corona discharge treatment or flame treatment, b) on the inorganic or organic substrate, one more photoinitiators or mixtures of photoinitiators with ... | eng_Latn | 9,109 |
Prevention of Plasticizer Leaching From the Inner Surface of Narrow Polyvinyl Chloride Tube by DC Glow Discharge Plasma | The prevention of plasticizer leaching from the inner surface of a narrow polyvinyl chloride (PVC) tube by dc glow discharge plasma generated inside the tube was investigated. The inner surface of PVC tubes with a 4-mm inner diameter was treated by Ar plasma. The amount of plasticizer leached from the inner surface of ... | 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 | 9,110 |
Optical nanosensors for intracellular sodium analysis | We have shown two types of nano-sized sensors, particle-based nano-sized sensors and quantum dot sensors capable of measuring the type of sodium dynamics that occur in cells. In these studies the sensors were loaded into cells using picoinjection. This minimizes the cell damage seen in electroporation and prevents the ... | Abstract Even though required for a robust production, direct measurement of the surface condition in-process is a challenge due to technical limitations. A concept for in-process monitoring of surface conditions like hardness or microtopography using observer-like structures will be discussed in this paper from a metr... | eng_Latn | 9,111 |
Using optical forces for the characterization of biological cell activities | Optical forces successfully manipulate biological cells and measure small forces such as molecular binding forces. This paper focuses on the use of optical forces for the direct characterization of various activities of biological cells. | Background ::: In patients who have macular edema secondary to retinal vein occlusion, the role of vasoactive molecules such as growth factors and the influence of molecules related to leukocyte adhesion need to be investigated further. | eng_Latn | 9,112 |
Chemical warfare and industrial agents detection and identification by LIBS and CRDS | 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... | Immunochemical analyses of protein expression and localization rely on the specificity of primary immunoreagents. A recent report, using transgenic mice, casts doubt on the specificity of three antibodies commonly used to immunolocalize alpha7 nicotinic ACh receptors. These data highlight the conundrum facing histologi... | eng_Latn | 9,113 |
An enzyme in human blood plasma that inactivates bradykinin and kallidins. | Abstract Human plasma fraction IV-1 contains an enzyme that rapidly inactivates bradykinin and kallidin II. The activity of the enzyme was characterized with biological and chemical techniques; it inactivates bradykinin by breaking its Phe8.Arg9 bond.Zn2+ or Co2+ can reactivate the enzyme, which is inhibited by chelati... | 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 | 9,114 |
Chelating Surfaces for Oriented Human Serum Albumin Molecules | Protein immobilization in a specific conformation or orientation at an interface is influenced by specific interactions with the outer layer of the surface. A strategy to build-up a complex construct which is able to orient protein molecules, based on metal-cation chelation processes, is reported. The proposed methodol... | A 67-year-old woman with chronic renal failure, in periodic hemodialysis, presented an hemolytic anemia in relation to splenic sequestration. Light Microscopic examination of the spleen revealed multiple granulomatous reaction. Numerous macrophages contained inclusions which were non-birefringent and non-staining with ... | eng_Latn | 9,115 |
Effect of optical absorption and amplification in one waveguide of radiation propagation in a multiwave heterostructure with coupled waveguides | The unique features of optical radiation propagation in coupled waveguides based on a multilayer semiconductor heterostructure with real value of the index of refraction has been studied in the absence of light absorption or amplification. This paper considers the light absorption or amplification in such systems in th... | Protein immobilization in a specific conformation or orientation at an interface is influenced by specific interactions with the outer layer of the surface. A strategy to build-up a complex construct which is able to orient protein molecules, based on metal-cation chelation processes, is reported. The proposed methodol... | eng_Latn | 9,116 |
TRANSIENT SPECIES INDUCED IN X-RAY CHEMICALLY AMPLIFIED POSITIVE RESISTS | The post exposure delay (PED) effect on transient species induced in Xray chemically amplified positive resist was investigated. The resist consisted of m-cresol novolac (matrix polymer), bisphenol A protected with tert-butoxycarbonyl groups (dissolution inhibitor), and triphenylsulfonium triflate (acid generator). In ... | Data on the existence of a specific system regulating the growth, size, and structure of enterobacterial populations are first summarized in terms of the chemical ecology concept formulated by S.S. Shvarts. The role of this system in transgene functioning is described using the example of the lux operon integrated into... | yue_Hant | 9,117 |
Amperometric determination of vanadium as vanadyl selenite | An amperometric titration procedure for the determination of vanadium as selenite in 0.044 M ammonium acetate and 50–55 per cent alcohol at a pH between 5.3–5.5 has been described. The titration is carried out at −1.10 V versus S.C.E. A V-shaped curve is obtained. The molar ratio of Se:V (1∶1) supports the formation of... | 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 | 9,118 |
Thiophosphate as a probe for mitochondrial oxidative phosphorylation, model phosphorylation reactions and membrane permeability | 1. ::: ::: Monothiophosphate was used as a probe for substrate level phosphorylation, mitochondrial oxidative phosphorylation, and membrane permeability. ::: ::: ::: ::: ::: 2. ::: ::: Thiophosphate does not support ATP synthesis either in mitochondria or model enzymic reactions, conservation of oxidative energy occurr... | 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 | 9,119 |
The Lescol Intervention Prevention Study (LIPS): start all patients on statins early after PCI. | The Lescol Intervention Prevention Study (LIPS) was the first randomized trial to show a significant reduction in the risk of cardiac events in patients started on fluvastatin immediately after a successful percutaneous coronary intervention. The benefit was independent of baseline cholesterol levels. The results sugge... | 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 | 9,120 |
Modes of Self-Pollination and Absence of Cryptic Self-Incompatibility inDrosophyllum lusitanicum(Droseraceae) | : ::: ::: We show experimentally that several types of selfing occur simultaneously in Drosophyllum lusitanicum: prior, competitive, insect-facilitated, delayed and geitonogamous. In addition, we report evidence of cleistogamy in the flower bud. All types of selfing were successful in producing fruits and seeds; howeve... | 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 | 9,121 |
Realtimekinetics ofrestriction endonuclease cleavage monitored byfluorescence resonanceenergytransfer | The kinetics of PaeR7endonuclease-catalysed cleavage reactions offluorophor-labeled oligonucleotide substrates havebeenexamined using fluorescence resonance energy transfer (FRET). Aseries ofduplex substrates weresynthesized withaninternal CTCGAG PaeR7recognition siteanddonor(fluorescein) and acceptor (rhodamine) dyesc... | In this paper, based on the access of 2G, 3G(GSM, CDMA2000,TD-SCDMA, WCDMA, WIFI, etc.), it proposes a method of real-time transmission of large-capacity video information obtained by the high-definition e-police, which can adjust the video frame rate dynamically according to the stability and width of mobile internet,... | eng_Latn | 9,122 |
Diagnostic workup of liver lesions: Too long time with too many examinations | AbstractObjective. Liver mass lesions are often detected incidentally. Subsequent imaging examinations and surveillance are not only expensive, but may also cause unnecessary concern to patients. The aim of this study was to evaluate retrospectively the possible delay in acquiring the diagnosis of liver mass lesions, a... | 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 | 9,123 |
Low-Cost Impedance Measurements for Lab-on-a-Chip Architectures: Towards Potentiostat Miniaturization | The development of miniaturized potentiostats capable of measuring in a wide range of conditions and with full characteristics (e.g., wide bandwidth and capacitive/inductive contribution to sensor’s impedance) is still an unresolved challenge in bioelectronics. We present a simple analogue design coupled to a digital f... | 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 | 9,124 |
Differential staining of bacteria: capsule stain. | Bacterial capsules are composed of high-molecular-weight polysaccharides and/or polypeptides, and are associated with virulence and biofilm formation. Unfortunately, capsules do not stain well with crystal violet, methylene blue, or other simple stains. This unit describes two methods of capsule staining. The first is ... | Abstract A set of accurate steady-state solutions for a diffused junction diode is presented. The internal consequences of biasing of the diode are demonstrated by the spatial distributions of the mobile charge carriers, the electrostatic potential and the space charge. The terminal characteristics presented include th... | eng_Latn | 9,125 |
Group awareness of social and cognitive behavior in a CSCL environment | This study investigated whether a peer feedback tool and a reflection tool would enhance group performance in a computer-supported collaborative learning environment. The underlying assumption was that group performance can be positively influenced by making group members aware of how their social and cognitive behavio... | 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 | 9,126 |
Double-sided adhesive tape and liquid crystal display device having reflection and light shielding functions | PROBLEM TO BE SOLVED: To provide a double-sided self-adhesive tape made thin to have SOLUTION: The double-sided self-adhesive tape 2 formed so as to contain a transparent plastic base material having ≥1 μm and COPYRIGHT: (C)2009,JPO&INPIT | 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 | 9,127 |
Feasibility study of enzyme immobilization on polymeric membrane: A case study with enzymatically galacto-oligosaccharides production from lactose | Abstracts Present work primarily deals with an exhaustive investigation on the effect of β-galactosidase (EC 3.2.1.23) immobilization on polymeric polyether sulfone, cellulose triacetate and thin film composite polyamide membrane to produce galacto-oligosaccharides from lactose. Fouling is one of the key issues that co... | Non-erasable micro grating structures were successfully encoded in amorphous SiO2 thin films on silicon wafers by colliding a pair of focused pulses split from a single femtosecond pulse from a 10 Hz mode-locked Ti:sapphire laser with a regenerative amplifier (wavelength; λ=800 nm, pulse duration; 100 fs, pulse energy;... | eng_Latn | 9,128 |
Fibrolamellar hepatocellular carcinoma mimicking ornithine transcarbamylase deficiency. | We report an unusual case of recurrent non-hepatic hyperammonaemic encephalopathy in an adult patient. She had a previous history of treated fibrolamellar hepatocellular carcinoma (FLC). This posed a diagnostic challenge, as she had normal liver function tests and normal looking liver on imaging but with extra hepatic ... | 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 | 9,129 |
SERS Active Nanobiosensor Functionalized by Self-Assembled 3D Nickel Nanonetworks for Glutathione Detection | We introduce a “non-noble metal” based SERS active nanobiosensor using a self-assembled 3D hybrid nickel nanonetwork. A tunable biomolecule detector fabricated by a bottom-up approach was functionalized using a multiphoton ionization energy mechanism to create a self-assembled 3D hybrid nickel nanonetwork. The nanonetw... | We discuss the use of a noninvasive in vivo optical technique, diffuse reflectance spectroscopic imaging with oblique incidence, to distinguish between benign and cancer-prone skin lesions. Various image features were examined to classify the images from lesions into benign and cancerous categories. Two groups of lesio... | eng_Latn | 9,130 |
Conditions that influence bacterial luminescence in the presence of blood serum | Conditions that influence the luminescence of natural and recombinant luminescent bacteria in the presence of blood serum were studied. In general, blood serum quenched the luminescence of the marine Photobacterium phosphoreum and the recombinant Escherichia coli strains harboring the luminescent system genes of Photob... | 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 | 9,131 |
The Effectiveness of Diet Intervention on Lowering Serum Cholesterol | At present the prevalence of coronary heart disease and hyperlipidemia are increasing in China.The very important problem is how to reduce the serum lipid levels and prevent coronary heart disease. Diet intervention has been taken as the first line treatment for hyperlipidemia.But the effectiveness of diet intervention... | 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 | 9,132 |
Tissue harmonic imaging with CMUTs | In this work, we report on the characterization of a CMUT probe (Capactive Micromachined Ultrasound Transducer) for Tissue Harmonic Imaging (THI). The intrinsic nonlinear behavior of the CMUT probe was first investigated. Matched electrical waveforms were transmitted to limit the impact of the transmit response distort... | Abstract Chemisorption of atomic H, C, N and O is studied by both EHT and IEHT methods using a cluster model. Preliminary calculations for the diatomic species HgHg and HgH enables the parameters involved in the calculations to be found. The minima positions over the surface model follows the order of the atomic sizes,... | eng_Latn | 9,133 |
Strategies to enhance the removal of the persistent pharmaceutically active compound carbamazepine by membrane bioreactors | Carbamazepine, which is an anti-epileptic drug, is ubiquitously present in municipal wastewater. Owing to its recalcitrant chemical structure, carbamazepine is not significantly removed during conventional biological treatment or even by membrane bioreactor (MBR). With the ultimate aim of providing insights into the st... | Nowadays, high-throughput analysis of biological events is a great challenge which could take benefit of the recent development of microarray devices. The great potential of such technology is related to the availability of a chip bearing a large set of probes, stable and easy to obtain, and suitable for ligand-binding... | eng_Latn | 9,134 |
Central serous chorioretinopathy in patients who cannot discontinue steroids | Dear Sir, ::: ::: We read with interest the report by Geyshis et al.1 The authors have elegantly highlighted the occasionally competing therapeutic priorities of physicians of different specialties. Nonetheless, we consider it important to add that a therapeutic dilemma as the one described by the authors can sometimes... | Abstract Imaging the Photoluminescence (PL) intensities related to recombination via the two metastable states of chromium in boron doped silicon is a highly sensitive means for measuring the spatially resolved interstitial chromium concentration ( [Cri] ) in silicon. In this work we show that the straightforward combi... | eng_Latn | 9,135 |
Closed-loop control of a long-range micropositioner using integrated photodiode sensors | a b s t r a c t Closed-loop control of an electrostatically actuated micropositioner using integrated feedback sensors is reported. A photodiode-based position sensing mechanism has been incorporated into a variablecapacitance micromotor supported on microball bearings with a range of 4mm and a resolution of 120!m.Accu... | An amperometric biosensor has been developed for the quantitative estimation of phenols in aqueous solution. The enzyme, tyrosinase, also called as poly phenol oxidase (PPO), was covalently immobilized on a novel copolymer poly (N-3-aminopropyl pyrrole-co-pyrrole) (PAPCP) film, electrochemically prepared onto an indium... | eng_Latn | 9,136 |
Fluorescence of substituted aromatic derivatives crystalline materials for optical nonlinear applications | Our fluorescence study gave information on the presence of chemical defects and irregularities in crystal structure, offering a good tool for quality evaluation of organic crystalline materials. We have analyzed the correlation between the bulk or thin film samples' quality determined by experimental parameters (therma... | The aim of this study was to determine the basic rheological parameters of dispersed highly concentrated lignite aqueous suspensions. Typical dilatant behavior was observed, where critical parameters of dilatancy were determined for different size fractions and concentrations. To modify the non-Newtonian behavior of th... | eng_Latn | 9,137 |
Effect of Depolarizing Agents on the Incorporation of Amino Acids into Soluble Cytoplasmic and Membrane-Bound Proteins of Synaptosome Fractions | : The incorporation of [U-14C] protein hydrolysate and [U-14C]leucine into the trichloroacetic acid (TCA)-insoluble membrane and the soluble synaptoplasm proteins of synaptosomes was studied. Following treatment with the depolarizing agents veratrine, Tityus toxin, or potassium, the specific radioactivity of both precu... | PFMB can be used to prepare aromatic polyimides that display solubility in ketone, ether, and polar aprotic solvents. This unusual solubility can be utilized in the facile preparation of thin films that display anisotropy in their structures and properties. The anisotropy in the optical properties of the films makes th... | eng_Latn | 9,138 |
Determination of Picogram Levels of Levodopa in Pharmaceutical Preparations and Biofluids by Flow-Injection Chemiluminescence | An ultrasensitive method for determination of L-dopa at picogram levels by flow-injection chemiluminescence (FI-CL) as presented for the first time, based on the quenching effect of levodopa (L-dopa) on the luminol-lysozyme reaction. It was found that the decrement of CL intensity was linearly proportional to the logar... | Plenoptic cameras generally employ a microlens array positioned between the main lens and the image sensor to capture the three-dimensional target radiation in the visible range. Because the focal length of common refractive or diffractive microlenses is fixed, the depth of field (DOF) is limited so as to restrict thei... | eng_Latn | 9,139 |
Research on Precision Cold Reflector with High Temperature Stability | The precision cold reflector with high temperature stability is a common component in projector optical system.This reflector can stand high temperature,reflect visible light,transmit infrared light.We use low expansion coefficient substrate,PVD coating process with IAD,to obtain the cold reflector.The reflector has vi... | In most structural biology NMR laboratories, instrument time is a limiting factor in the number of structural projects a laboratory is able to support. In the post-genomic era we can expect the number of structural targets to markedly increase. Here we address to what degree recently introduced cryoprobes, which are 3-... | eng_Latn | 9,140 |
A polymer gate FET sensor array for detecting organic vapours | Abstract Here we describe a novel ChemFET sensor array that utilises carbon black composite polymers for the detection of organic vapours. Three vapour-sensitive composite polymers have been used as the gate materials of FET devices. A shift in the threshold voltage to toluene is observed with a linear dependence to co... | To control active filter characteristics a new type of integrated circuit (IC) of Xicor Inc. is used. This is an analogue potentiometer with digital control and non volatile memory. Usage of this IC is convenient when the storage of the last results is required. The control parameters are estimated for applications on ... | eng_Latn | 9,141 |
Amperometric phenol biosensor based on covalent immobilization of tyrosinase onto an electrochemically prepared novel copolymer poly (N-3-aminopropyl pyrrole-co-pyrrole) film | An amperometric biosensor has been developed for the quantitative estimation of phenols in aqueous solution. The enzyme, tyrosinase, also called as poly phenol oxidase (PPO), was covalently immobilized on a novel copolymer poly (N-3-aminopropyl pyrrole-co-pyrrole) (PAPCP) film, electrochemically prepared onto an indium... | 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 | 9,142 |
Aspiration and MASS Measurement of Microparticles and Unicellular Organisms via Micropipette Resonators | This paper reports the first mass measurement of specific microparticles and unicellular organisms on slides or dishes by using micropipette resonators with an open end. Micropipette resonators are fabricated by a customized pipette puller with a galvano mirror that widens the effective heating region thus makes pulled... | Author(s): riahi samani, saleh | Advisor(s): Tobias, Douglas J | Abstract: Atomic level understanding of the interactions between the prevalent organic compounds and indoor surfaces is essential to study the potential impacts of these compounds on public health. Computer simulation methods provide an accurate means to ... | eng_Latn | 9,143 |
[MR imaging of intraocular lesions--a comparison with CT]. | Thirty-two intraocular lesions were studied with magnetic resonance (MR) imaging and computed tomography (CT). These lesions included retinoblastoma (n = 11), uveal melanoma (n = 6), metastatic choroidal tumor (n = 3), choroidal hemangioma (n = 2), retinochoroiditis (n = 6) and Coats' disease (n = 4). MR imaging was su... | 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 | 9,144 |
Determination of Fucose Concentration in a Lectin-Based Displacement Microfluidic Assay | We compare three different methods to quantify the monosaccharide fucose in solutions using the displacement of a large glycoprotein, lactoferrin. Two microfluidic analysis methods, namely fluorescence detection of (labeled) lactoferrin as it is displaced by unlabeled fucose and the displacement of (unlabeled) lactofer... | AbstractObjective: The objective of this study was to enhance the solubility and bioavailability of Lupeol.Methods: Utilizing a thin-film dispersion method, we prepared Lupeol-loaded PEGylated lipo... | eng_Latn | 9,145 |
Immobilization of Glucose Oxidase on Gel Composites Based on Hydroxyethyl Cellulose and Tetramethoxy-silicane Precursor | Hydroxyethyl cellulose/silicon dioxide gel composites(HEC/SiO 2) prepared by a sol gel method through the hydrolysis and polycondensation of tetramethoxy silicane in a hydroxyethyl cellulose aqueous solution. The gel composites are used as carriers for immobilization of glucose oxidase(GOD). The effects of enzyme conte... | 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 | 9,146 |
Clinical Singniticance of Defecting of Content of Serum Ferritin in the Chronic Hepatitis B | Objective To learn its clinical significance through detection of serum ferritin of chronic hepatitis B.Methods The serum ferritin was detected by luminescent immunoassay in 106 cases CHB and compared with 58 cases of normal person.Results There was significant difference between the CHB and the normal man in content s... | 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 | 9,147 |
Intact carboxysomes in a cyanobacterial cell visualized by hilbert differential contrast transmission electron microscopy. | Carboxysomes in rapidly frozen ice-embedded whole cells of the cyanobacterium Synechococcus sp. strain PCC 7942 were visualized by the recently developed Hilbert differential contrast transmission electron microscope. Structural details of carboxysomes were especially clearly visualized in the ruptured cells. The novel... | Recently Geis fabricated a composite cold cathode emitter made of diamond doped by substitutional nitrogen on a roughened metallic substrate, which is characterized by high field emission currents at very low power. Using an internal field emission mechanism through the Schottky barrier at the metal diamond interfaces ... | eng_Latn | 9,148 |
Electrochemical synthesis of transparent nanocrystalline Cu2O films using a reverse potential waveform | Abstract A transparent nanocrystalline Cu 2 O thin film has been synthesized by electrodeposition using a reverse potential waveform with a cathodic peak potential of − 1200 mV, an anodic dissolution peak potential of + 800 mV and a cycle time of 80 s. For each cycle, Cu 2 O particles are firstly deposited on the subst... | 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 | 9,149 |
PURIFICATION OF CALCIUM HYDROXIDE SLURRY | The factors of influencing the purification effect of calcium hydroxide slurry are analyzed and the measures of improving the purification of it are given. | Chemosensory devices with self organized structures and artificial receptors are developed for a wide field of applications. Supramolecular hosts, highly ordered liquid crystal phases and even Langmuir Blodgett films are promising recognition elements. Cage compounds such as tert- butyl-calix[n]arene show high preorgan... | yue_Hant | 9,150 |
Scavenging of Free Radicals, Antimicrobial, and Cytotoxic Activities of the Maillard Reaction Products of β-Lactoglobulin Glycated with Several Sugars | The Maillard reaction occurs during many industrial and domestic thermal treatments of foods. It is widely used because of its role in creating colors, flavors, textures, and other functional properties in foodstuffs. Proteins glycated without the use of conventional chemical reagents have improved technofunctional pro... | 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 | 9,151 |
Tissue distribution, subcellular localization, and enzymatic activity analysis of human SIRT5 isoforms | SIRT5 is one of the seven mammalian sirtuins which are NAD+-dependent deacylases. In human beings, SIRT5 gene encodes for four SIRT5 protein isoforms, namely SIRT5iso1, SIRT5iso2, SIRT5iso3, and SIRT5iso4. Previous studies have focused mostly on SIRT5iso1. Characteristics regarding localization, activity and tissue dis... | 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 | 9,152 |
Phototransformation of sterically hindered phenol in organic solvents | 1. ::: ::: The kinetics of the phototransformation of sterically hindered phenol inorganic solvents was investigated. The singlet state is the photochemically active state. The phenol is consumed according to a first-order law. The quantum yields of the phototransformation for the investigated phenol in various solvent... | Abstract Micro/nanostructures are fabricated on the stainless steel surfaces by a nanosecond laser in different gaseous environments, including air, O 2 , N 2 and Ar. Our results indicate that the dimensional feature of the micro/nanostructures is greatly affected by laser scanning speed as well as gaseous environment.... | eng_Latn | 9,153 |
Size dependence of the photophoretic force | The photophoretic force on a micron‐sized sphere of glycerol is measured for a continuously changing size parameter (through evaporation) for excitation at 10.63 and 9.58 μ. Although the force at 9.58 μ is always forward (’’positive’’ photophoresis), the force at 10.63 μ reverses in sign (’’negative’’ photophoresis) an... | The formula for correction for reabsorption in the case of a plane-parallel luminophor excited and observed from one side is presented in a form convenient for computation. This form clearly shows the effect on the reabsorption correction of changing the parameters of the experiment. | eng_Latn | 9,154 |
A Universal Photoionization Dgpector for Liquid Chromatography | Abstract A new liquid chromatography detector has been developed with sensitivity to most organic compounds in the 10 – 100 picogram region, but insensitive to common eluents. Photons from a vacuum UV lamp ionize solutes in the vaporized LC column effluent, without ionizing the mobile phase. Initial studies of its perf... | We consider the cross area of the PP_ and PSV_wave window as the best window for joint PP_ and PSV_wave acquisition in VTI media. Within the effective window, the PP_ and PSV_wave's raypathes and phase angles at all reflection points are calculated, and the reflection (or transmission) coefficients' ratios of PSV- to P... | eng_Latn | 9,155 |
Calcium pectinate capsules for colon-specific drug delivery. | The calcium pectinate (CaP) capsule, a novel, colon-specific delivery system, was designed and developed using 5-fluorouracil (5-FU) as a model drug. Technically, CaP capsules were prepared by dipping a glass or stainless steel rod successively into pectin and calcium chloride solutions, followed by subsequent air-dryi... | Chemosensory devices with self organized structures and artificial receptors are developed for a wide field of applications. Supramolecular hosts, highly ordered liquid crystal phases and even Langmuir Blodgett films are promising recognition elements. Cage compounds such as tert- butyl-calix[n]arene show high preorgan... | eng_Latn | 9,156 |
Neuronal versus endothelial origin of vasoactive acetylcholine in pial vessels | Functional pial vessels denuded in situ of the endothelial cell layer exhibit a markedly decreased choline uptake capacity (-53%) but integrally preserved choline acetyltransferase (ChAT) activity and acetylcholine (ACh) release mechanisms. These studies demonstrate that endothelial cells possess a specific choline upt... | 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 | 9,157 |
Spectral properties of chlorophyll a in liquid crystal. | Solution of chlorophyll a in liquid crystals mixture (MBBA + EBBA) was investigated. Chl molecules are in LC in low electric field oriented. They can be divided into two groups: one strongly interacting with LC and subjected to reorientation by the electric field, and another weakly interacting with the solvent and ins... | Abstract A technique suggested by Mola and Heras of analyzing thin film size effect data is used to characterize the structure of thin polycrystalline metal films. A linear least-squares analysis of the product of resistivity and thickness versus thickness allows a consistent determination of the size effect parameter ... | eng_Latn | 9,158 |
Hopping charge transport in molecularly doped polymers: Polymer matrix dependence of the hole drift mobility | Effects of the polymer matrix on the drift mobility of holes in polymers doped with 2‐(p‐dipropylaminophenyl)‐4‐(p‐dimethylaminophenyl)‐5‐(o‐chlorophenyl)‐1, 3‐oxazole were studied by means of time‐of‐flight photoconductivity measurements. The drift mobility at zero field, the activation energy for hopping, and the ele... | Nowadays, high-throughput analysis of biological events is a great challenge which could take benefit of the recent development of microarray devices. The great potential of such technology is related to the availability of a chip bearing a large set of probes, stable and easy to obtain, and suitable for ligand-binding... | eng_Latn | 9,159 |
Experimental study of debris-bed coolability under pool-boiling conditions. [PWR; BWR; LMFBR] | An experimental investigation has been conducted into the dryout of a bed of inductively heated particles cooled by an overlying liquid pool. Particles of diameters 4763 ..mu..m, 3175 ..mu..m, 1588 ..mu..m, and 589-787 ..mu..m have been used. Acetone and water have been used as the coolant with bed heights varying from... | 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 | 9,160 |
Gamma-ray spectrometer of high purity germanium detector cooled by the Stirling cycle cryostat in the lunar mission SELENE | The gamma ray spectrometer (GRS) will be onboard the Japanese lunar polar orbiter SELENE, to be launched in 2004, to obtain the information of element abundance on the entire lunar surface. GRS consists of a high-purity Ge detector as a main detector, which is an n-type Ge crystal with a high detection efficiency of 60... | Previous studies on the serological diagnosis of rotavirus infection have utilised locally produced antibodies. In this study we have compared two commercially produced assays, an ELISA (Rotazyme, Abbott) and a newly developed assay--solid phase aggregation of coupled erythrocytes (SPACE) (Wellcome Research Laboratorie... | eng_Latn | 9,161 |
Length sorting cut single wall carbon nanotubes by high performance liquid chromatography | Semi-preparative, HPLC based, size exclusion chromatography (SEC) was used to length sort single wall carbon nanotubes previously cut by an acid based process. In contrast to prior reports of nanotube length separation by gravity fed SEC, mean nanotube lengths in the present study were shorter than the controlled pore ... | 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 | 9,162 |
Immunity to pathogenic free-living amoebae: role of humoral antibody. | Pathogenic free-living amoebae are common in nature, but few clinical infections by these amoebae have been reported. This has prompted studies of host susceptibility factors in humans. A survey of normal human sera from three New Zealand Health Districts was made; antibodies to pathogenic free-living amoebae were foun... | Liver, being the central organ for degradation of compounds differing greatly in chemical and physical properties, must have the appropriate transport systems for vectorial membrane transport. Of outstanding interest are the transport systems for the great many of amphiphilic compounds, metabolites and xenobiotics, whi... | eng_Latn | 9,163 |
Non-enzymatic glucose detection based on phenylboronic acid modified optical fibers | Abstract A non-enzymatic, sensitive glucose sensor was fabricated based on an evanescent wave absorbing optical fiber probe. The optical fiber sensor was functionalized by fixing a poly (phenylboronic acid) (polyPBA) film onto the conical region of the single mode fiber. The reflected light intensity of the polyPBA-fun... | Although a high-efficiency air filter can be achieved from electrospun nanofabrics, it has been challenging to reduce the pressure drop, increase the filtration capacity, and improve the production rate of the electrospinning process. Here, we report a hierarchically structured all-biomass air filter with high filtrati... | eng_Latn | 9,164 |
SIMULTANEOUS DETERMINATION OF TRACE CHRYSENE ANTHRACENE AND PERYLENE BY POLARIZATION SYNCHRONOUS SPECTROFLUORIMETRY | This work is performed on a spectrofluorimeter, which is equipped with two vertical polarizers in both the excitation and the emission light paths. The use of this technique can effectively suppress the effect of scattered light during synchronous scanning. A new method of polarization synchronous spectrofluorimetry fo... | The influences of Co-Cr-Pt-Ta sputtering-target microstructure on C/Co-Cr-Pt-Ta/Cr/glass films were investigated. The sputtering target consisted of a Co solid solution matrix and Ta- and Pt-rich precipitates. Annealing and rolling can increase the Pt and Ta content of the matrix. When the film is made by using an anne... | yue_Hant | 9,165 |
Polypyrrole-peptide microarray for biomolecular interaction analysis by SPR imaging | Nowadays, high-throughput analysis of biological events is a great challenge which could take benefit of the recent development of microarray devices. The great potential of such technology is related to the availability of a chip bearing a large set of probes, stable and easy to obtain, and suitable for ligand-binding... | Treatment of 1-phenyl-2-, and -3-phospholene 1-oxides with N-bromosuccinimide affords 4-bromo-1-phenyl-2-phospholene 1-oxide. Substitution of the bromide with acetate, followed by stereoselective oxidation with osmium tetroxide and peracetylation with acetic anhydride/pyridine affords phospho sugar derivatives of tetra... | eng_Latn | 9,166 |
A microfluidic aptasensor integrated with nanodrop generator for MALDI-TOF MS analysis in clinical applications | This paper presents an aptamer-based microchip for sensitive and quantitative detection of biomolecules using matrix-assisted laser desorption/ ionization time-of-flight mass spectrometry (MALDI-TOF MS). The device is capable of both isolating analyte from samples and dispensing purified samples onto a probe plate for ... | Microwave-driven smart material actuators were first envisioned and developed as the best option to simplify the complexity and weight of hard wired networked power and control for smart actuator arrays. A power allocation and distribution scheme (PAD) was originally devised to simplify the wiring of thousands of contr... | eng_Latn | 9,167 |
MLC1 mutations in Japanese patients with megalencephalic leukoencephalopathy with subcortical cysts | Megalencephalic leukoencephalopathy with subcortical cysts (MLC) is an autosomal recessive neurological disorder manifesting early onset macrocephaly and delayed-onset neurological deterioration. Characteristic radiological findings revealed by brain magnetic resonance imaging are the most important factors for obtaini... | Plenoptic cameras generally employ a microlens array positioned between the main lens and the image sensor to capture the three-dimensional target radiation in the visible range. Because the focal length of common refractive or diffractive microlenses is fixed, the depth of field (DOF) is limited so as to restrict thei... | eng_Latn | 9,168 |
Khellin: A furanochromone with toxicity against Oncopeltus fasciatus (Hemiptera) and Aedes aegypti (Diptera) | Natural products isolated from plants may be an alternative source of larvicidal and insecticide activity. Khellin ::: is a natural furanochromone isolated from fruits of Ammi visnaga (L.) Lam. (Umbelliferae family), which grows ::: extensively in the Mediterranean region. This substance shows several types of biologic... | 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 | 9,169 |
[The chemiluminescence and fluorescence of aromatic amino acids in the presence of iodine]. | Optic characteristics of solutions of aromatic amino acids containing fluorine products were examined by adding iodine solution. Iodine exerted variously directed effects on the intensity of photochemiluminescence of tryptophan, thyrosine, and beta-indolacetic acid solutions. Extinction of the luminescence of beta-indo... | The evolution of atomic de Broglie waves inside strong periodic potentials can be described as channeling and exhibits both particle and wave effects. Using a beam of metastable Argon atoms interacting with an intense standing light wave we detect an interference pattern arising from the coherent guiding of the atoms t... | eng_Latn | 9,170 |
Effect of Ligand Structure on MnO Nanoparticles for Enhanced T1 Magnetic Resonance Imaging of Inflammatory Macrophages | Carboxymethyl-dextran (CM-dextran) replaced the hydrophobic oleylamine ligands on the surfaces of MnO nanoparticles, rendering them highly water-soluble by allowing direct contact with excited water protons. Solution MRI studies of the two types of nanoparticles, exchanged and bilayered, with different core sizes have ... | Abstract In this work green tapes comprised of TiC and SiC were further processed by lamination, pyrolysis and liquid silicon infiltration. The in-situ synthesis of MAX phase Ti 3 SiC 2 by silicon infiltration was investigated and discussed. The synthesis was supported by thermodynamic calculations. The mechanical and ... | eng_Latn | 9,171 |
Surface modification of polyaniline nanorods with thiol-terminated poly(ethylene oxide) | Electrochemically grown polyaniline (PAni) thin films have been shown to react efficiently with thiols, which can dramatically change the surface properties of the material without significantly impacting bulk conductivity. Such films, however, are difficult to process and are unsuitable for many applications. Here, we... | Structural and optical properties of TiO2 thin films prepared using a sol–gel process have been examined at different treatment temperatures and for different layer counts. XRD and Raman analyzes of our thin films of TiO2 show that 3 layer films crystallize in anatase and brookite phases, starting from the temperature ... | eng_Latn | 9,172 |
Steady state charge conduction through solution processed liquid crystalline lanthanide bisphthalocyanine films | In-plane electrical characteristics of non-peripherally octyl(C8H17)- and hexyl(C6H13)-substituted liquid crystalline (LC) double decker lanthanide bisphthalocyanine (LnPc2) complexes with central ... | 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 | 9,173 |
High Specificity Binding of Lectins to Carbohydrate-Functionalized Fiber Bragg Gratings: A New Model for Biosensing Applications | The functionalization of an etched fiber Bragg grating was realized using a carbohydrate-siloxane conjugate. No fluorescent probes were used. Concanavalin A bound with high specificity to the glucose biosensor, but not to the lactose functionalized fiber. Conversely, peanut agglutinin bound to the lactose sensor with h... | Code generation with the Graham Glanville scheme can be improved, using backtracking parsers for attribute grammars. This eliminates semantic and syntactic blocking during code selection and guarantees the cheapest code possible, if desired. Multipass translation allows the use of nontrivial register allocation strateg... | eng_Latn | 9,174 |
Synthesis and Electrochemical Characteristic of Spinel LiCr_(0.2)Mn_(1.8)O_4 | The spinel phase of LiCrxMn2-xO4(x=0,0.2) was synthesized via suspended solid reaction of LiOH,MnCO3 and Cr2(CO3)3 prepared by dispersing stoichiometric amount of Li,Cr and Mn salts in the proportion of n(Li)∶n(Cr)∶n(Mn)=1.02∶0.2∶1.8.The mixture was added to distilled water and rubbed repeatability,desiccated and calci... | 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 | 9,175 |
Effect of Different Components of Egg Yolk on Flavor of Egg Yolk | The fresh egg yolk was separated into three components by organic solvent: nonfat components, polar lipids and unpolar lipids. Sensory evaluation and GC-MS were used to study the flavor compounds of the heated three components and the assembled samples. The result showed that the characteristic flavor of egg yolk was p... | Exact expressions for the out of phase modulated photocurrent (MPC), the so-called Y signal, with a clear physical insight for density of states (DOS) spectroscopy are derived without any approximation. It is found that, apart from the capture rate of the majority carriers into the probed gap states, additional mixed c... | eng_Latn | 9,176 |
Water Level Monitoring and Measurement System of River Based on ZigBee | Aimed at the current status of water level monitoring and measurement of river,the water level monitoring and measurement system of river was proposed,utilizing both ZigBee technology and ultrasonic waves measurement technology.In the system,the ultrasonic waves measurement modules were combined with wireless sensor no... | 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 | 9,177 |
Determination of Phytic Acid in Cereal Grains, Legumes, and Feeds by Capillary Isotachophoresis | A method is described for the determination of phytic acid in various plant materials and feeds based on isotachophoresis. The electrophoretic migration properties of phytic acid, the lower inositol phosphates, and phosphate were investigated in various buffering systems. It was found that the electrolyte system consis... | 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 | 9,178 |
[Identification of Mycobacterium tuberculosis strains and a simultaneous identification of their drug resistance by the hybridization method on oligonucleotide microchips]. | A method of multiplex polymerase chain reaction (PCR) with subsequent hyoridization on oligonucleotide microchips was worked out to identify the Mycobacterium tuberculosis complex and to determine simultaneously the bacterial sensitivity to 2 first-line drugs, i.e. rifampin and isoniazid. The method provides for detect... | 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 | 9,179 |
Multiphonon Absorption in Chalcogenide Glasses | The“molecular model” of Lucovsky and coworkers for vibrational properties of chalcogenide glasses such as As2S3, As2Se3, GeS2 and GeSe2 suggests that multiphonon absorption in these materials should be analogous to overtone and combination vibrational bands in isolated molecules. A variety of experiments have been carr... | Many microfluidic applications require modified surface wettability of the microchannels. Patterning of wettability within enclosed microfluidic structures at high spatial resolution has been challenging in the past. In this paper, we report an improved method for altering the surface wettability in poly(dimethylsiloxa... | deu_Latn | 9,180 |
A highly selective and synthetically facile aqueous-phase cyanide probe | Disperse Orange 3 (4-(4-nitrophenylazo)aniline)-based chemosensor 1 has been prepared. This structurally simple receptor displays great selectivity for the cyanide anion over other common inorganic anions in aqueous environment and can detect cyanide in water sample at micromolar concentrations. | Abstract MBE regrowth on MOVPE grown InP and InGaAsP (1.06 μm) layers was found to demand appropriate surface treatment for not sacrificing epitaxial growth performance. Wet chemical etching using a sulphuric acid based solution as well as surface oxidation using UV light/ozone exposure were found to give very satisfac... | eng_Latn | 9,181 |
Dissolution of a Soluble Drug Substance from Vinyl Polymer Matrices | □ It was shown that vinyl polymers form good bases for in vitro sustained-release matrices, and that the character of the release curves is basically in line with their PH–solubility profiles. For a flow cell, the release curves may be approximated by the equation: In (m/m0) = –K(t − ti), where m is the amount not diss... | Nowadays, high-throughput analysis of biological events is a great challenge which could take benefit of the recent development of microarray devices. The great potential of such technology is related to the availability of a chip bearing a large set of probes, stable and easy to obtain, and suitable for ligand-binding... | eng_Latn | 9,182 |
Spectroscopic analysis of keratin endogenous signal for skin multiphoton microscopy | We recorded one-photon excited fluorescence (1PEF) and two-photon excited fluorescence (2PEF) spectra of purified keratin from human epidermis, and determined the action cross section of this endogenous chromophore. We used this spectroscopic analysis to analyse multiphoton images of skin biopsies and assign the intrin... | Exact eigenvalues, normalized electronic wavefunctions and their derivatives with respect to the internuclear separation have been calculated for the lowest 20 states 1s sigma , 2s sigma ,...,4f phi of the HeH2+ molecule at internuclear separations 0.1(0.1)20, 20(0.2)80 a0 assuming infinitely massive nuclei. The numeri... | eng_Latn | 9,183 |
Comparing Research on TiO_2 Anti-reflection Coating (ARC) and SiN ARC of Crystalline Si Solar Sells | Comparison of TiO 2 anti reflection coating (ARC) and SiN ARC were carried out by multi coating theory and numerical calculation, including their impact to performances of crystalline Si solar cells. The optimum design results were obtained. | The development of molecular probes for the detection and imaging of biological thiols is a major step forward diagnosing various types of diseases. Previously reported thiol imaging strategies were mainly based on a single mode of imaging with a limited application in vivo. In this work, we introduced an unsymmetrical... | eng_Latn | 9,184 |
Rapid screening for plasmid DNA | A procedure is described for demonstrating plasmid DNA and its molecular weight, based on rate zonal centrifugation of unlabelled DNA in neutral sucrose gradients containing a low concentration of ethidium bromide. Each DNA species is then visualized as a discrete fluorescent band when the centrifuge tube is illuminate... | A plasma CVD technology was developed that can deposit high-quality Ta20S thin film, suitable for stacked capacitor dielectric film of 64 Mbit-DRAM and beyond. Ta20S films, as thin as 30 A Si02 equivalen� thickness, deposited by this newly | eng_Latn | 9,185 |
Surface-field induced organisation at solid/fluid interfaces | Self-assembled monolayers of alkanethiol derivatives have been used to control the anchoring of nematic films of alkylcyanobiphenyl (nCB) liquid crystals. Variation of the surface field, via the ω-functional group presented at the liquid crystal interface, has allowed us to explore both orientational wetting and anchor... | We present optically pumped lasing from group IV GeSn/SiGeSn heterostructures. A comparison between double heterostructure and multi-quantum-well microdisk cavities reveals advantages of the multi-well design. Strongly reduced lasing thresholds compared to values from bulk devices are observed. | eng_Latn | 9,186 |
Molecular transport in subnanometer pores: zero-point energy, reduced dimensionality and quantum sieving | 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... | Nowadays, high-throughput analysis of biological events is a great challenge which could take benefit of the recent development of microarray devices. The great potential of such technology is related to the availability of a chip bearing a large set of probes, stable and easy to obtain, and suitable for ligand-binding... | eng_Latn | 9,187 |
Direct detection of the interaction of tiny analytes with receptors using an advanced plasmonic biosensor | The interaction between tiny-molecular-weight analytes and receptors can be detected directly using advanced plasmonic biosensors. This paper proposes a plasmonic biosensor with Au nanoclusters embedded in a dielectric film. The sensor uses the attenuated total reflection (ATR) method to excite both the surface plasmon... | The present invention relates to an apparatus for receiving between the appliance and the appliance configuration data exchange, the data, for example, position data or identification data. The apparatus comprising: an elongated track of sensors provided by the sensors in the tool receiving structure; and at least one ... | eng_Latn | 9,188 |
Electric-Field Distribution at the End of a Charged Capillary-A Coupling Imaging Study | The electric-field distribution at the end of a charged capillary system is detected using a scanning electrochemical microscopy (SECM) coupling imaging mode. A theoretical model based on the resistance of solution at the capillary end describes the three-dimensional distribution of the electric field. The effect of th... | Polarimetric characferization of rain drop as ellipsoid is calculated by point- matching method,and then the depression of rain clutter is discussed.The result shows that emitting with circular polarization and receiving with copolarization are effective on rain clutter′s depression. | eng_Latn | 9,189 |
Oolong Tea Polyphenols Ameliorate Circadian Rhythm of Intestinal Microbiome and Liver Clock Genes in Mouse Model | Our present study focused on the regulating effect of oolong tea polyphenols (OTPs) on the circadian rhythm of liver and intestinal microbiome. OTP significantly alleviated the disrupted diurnal oscillation and phase shift of the specific intestinal microbiota and liver clock genes in mice induced by constant dark (CD)... | 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 | 9,190 |
Hydrophobing silica with organosilicon compounds and blends thereof | Silica surfaces are contacted with compositions containing organosilicon compounds to prepare modified silica fillers. The compositions contain only organosilicon compounds which are monomeric dichlorosilanes and trialkoxysilanes. The treating compositions may be: (i) mixtures or blends of dialkyldichlorosilanes, and t... | Hybrid System-in-Foil exploits the complementary benefits of integrating embedded silicon chips with on-foil passive and active electronic components. In this work, the design, fabrication and characterization of three on-foil components, namely a humidity sensor, near field communication antenna and organic thin-film ... | eng_Latn | 9,191 |
Foams Stabilized by Multilamellar Polyglycerol Ester Self-Assemblies | The importance of surfactant self-assemblies in foam stabilization is well-known. The aim of the current study was to investigate the self-assemblies of the nonionic surfactant polyglycerol ester (PGE) in bulk solutions, at the interface and within foams, using a combined approach of small-angle neutron scattering, neu... | This paper presents a gimbaled MEMS scanning mirror (MSM) especially developed for adaptive raster scanning in a ::: novel 3D ToF laser camera. Large quasi-static deflections of ±10° are provided by vertical comb drives in vertical ::: direction in contrast to resonant horizontal scanning of the 2.6x3.6mm elliptical mi... | eng_Latn | 9,192 |
Frequency noise reduction of heterogeneous Si/III-V lasers locked to ultra-high Q Si3N4 resonators | A heterogeneous Si/III-V laser is frequency locked to a waveguide coupled ultra-high Q Si 3 N 4 resonator in the Pound-Drever-Hall configuration. The FM noise is reduced 33 dB to 103 Hz2/Hz, promising for stable integrated reference lasers. | The development of molecular probes for the detection and imaging of biological thiols is a major step forward diagnosing various types of diseases. Previously reported thiol imaging strategies were mainly based on a single mode of imaging with a limited application in vivo. In this work, we introduced an unsymmetrical... | eng_Latn | 9,193 |
Enzyme Linked Iuno-Sohbei.T Assay for Detection of Aktibouy. Activity in Female Genital Traot of Immunized Rabbits | A method to assay anti-HCG activity was developed. Polystyrene micro-ELISA plates were coated with HCG and uterine and tubal washings were incubated in the wells. Sera were diluted to equate the protein content with that in the washings and were included in the assay to serve as internal reference standards. Anti-rabbi... | In an optical multilayer thin film system, interference effects play an important role for the outcoupling of light due to the different refractive indices and thicknesses of the involved layers. A theoretical model has been investigated with the ability to calculate the outcoupled intensity of light for various wavele... | eng_Latn | 9,194 |
Chemical vapor deposition of silica on silicalite crystals and shape-selective adsorption of paraffins | Abstract Chemical vapor deposition (CVD) of Si(OCH 3 ) 4 was carried out on silicalite crystals in order to control the pore-opening size. Due to the non-acidity, relatively high temperature such as 773 K was required to deposit thicker silica layers sufficient for obtaining selective adsorbents. Adsorption of linear a... | 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 | 9,195 |
Frequency analysis of δ Scuti and RR Lyrae stars in the OGLE-1 database | We discuss the results of a systematic search for multiperiodic pulsations in Galactic Bulge Delta Scuti and RR Lyrae stars. Six "normal" double-mode variables pulsating in two radial modes have been identified (5 Delta Scuti-type and 1 RR Lyrae-type). In 37 RR Lyrae stars secondary periodicities very close to the prim... | 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 | 9,196 |
Accuracy of Glucose Reflectance Testing for Detecting Hypoglycemia in Term Newborns | Glucose concentrations of 248 newborns at 1 and 3 hours of age were determined at the bedside by means of the Accu-Chek III Reflectance® meter and in the laboratory by means of the Vitros 750® analyzer. Hypoglycemia being defined as a glucose concentration less than 40 mg/dL, the reflectance meter had a sensitivity of ... | Abstract The potential-time transient in potentiometric stripping analysis with a rotating mercury-film electrode is simulated digitally by means of the finite-difference Cranck-Nicolson method. Good agreement with experimental results is obtained. The relations between peak shape and signal duration for reversible ana... | eng_Latn | 9,197 |
Plasma Spectra of New Superconductors (La1-xAx)2CuO4 | The optical reflectivity spectra of new superconductors (La1-xMx)2CuO4 (M=Ba, Ca, Sr) were investigated. In the spectra for the metallic samples, a plasma edge was observed at almost the same position for all compositions x and for all substituents. Based on the two-dimensional tight-binding model, the conduction band ... | Protein immobilization in a specific conformation or orientation at an interface is influenced by specific interactions with the outer layer of the surface. A strategy to build-up a complex construct which is able to orient protein molecules, based on metal-cation chelation processes, is reported. The proposed methodol... | eng_Latn | 9,198 |
Recent Advances in the Use of Intrinsic Fluorescence for Bacterial Identification and Characterization | Live bacteria contain a variety of intracellular biomolecules that have specific excitation and emission wavelength spectra characterizing their intrinsic fluorescence. This paper reviews recent developed methods using bacterial intrinsic fluorescence for identification and characterization purposes. Potential applicat... | Mizel and Bates ([1][1]), in their review on flagellin as an adjuvant, state that “a number of flagellin-based vaccines for infectious diseases have already entered clinical trials.” I would like to add a cautionary note concerning the evaluation of the efficacy of these trials. Some people are | eng_Latn | 9,199 |
Subsets and Splits
No community queries yet
The top public SQL queries from the community will appear here once available.