451   FeCO3 microparticle synthesis by Fe-EDTA hydrothermal decomposition FeCO3 microparticle synthesis by Fe-EDTA hydrothermal decomposition    2012 We developed a new procedure for synthesizing highly crystalline FeCO 3 by hydrothermal decomposition of the Fe(III)-EDTA complex in the presence of urea, starting from ferric ammonium sulfate and Na4EDTA as the main precursors. Single phase FeCO3 microcrystals with a size in the range of 50-200 μm have been obtained after high pressure-temperature treatment time between 15 and 26 h at 230 and 250 °C. Without changing the concentrations of the precursors and synthesis temperature, we have... 查看全文

452   Quadrupole-Central-Transition 17O NMR Spectroscopy of Protein−Ligand Complexes in Solution Quadrupole-Central-Transition 17O NMR Spectroscopy of Protein−Ligand Complexes in Solution Jianfeng Zhu, Irene C. M. Kwan and Gang Wu*    2009 We report the first 17O quadrupole-central-transition (QCT) NMR spectroscopic study of protein?ligand complexes in solution. This work shows that it is possible to obtain high resolution 17O NMR spectra for 17O-labeled ligands bound to proteins. At high magnetic fields such as 21.14 T, this 17O QCT NMR approach should be applicable to studies of all oxygen-containing functional groups in large proteins (>30 kDa). 查看全文

453   Enhanced adsorption of Acid Red 88 by an excellent adsorbent prepared from alunite Enhanced adsorption of Acid Red 88 by an excellent adsorbent prepared from alunite Russell J. Beal, Madhuri Kalva and Barrett G. Potter Jr.    2012 BACKGROUND: Calcination significantly increased the adsorption performance of alunite for Acid Red 88. 查看全文

454   Hydrothermal synthesis of MgCO3 and its optical properties Hydrothermal synthesis of MgCO3 and its optical properties    2011 Well-crystallized magnesium carbonate micro-particles were successfully synthesized by a simple hydrothermal method. The structure of the as-synthesized products was characterized by X-ray diffraction (XRD), which is in good agreement with hexagonal rhomb-centered MgCO3. Field emission scanning electron microscopy (FE-SEM) characterization indicates that the as-synthesized MgCO3 micro-particles are of mean size about 30 μm. The photoluminescence properties of the as-synthesized MgCO3 were mea... 查看全文

455   A CONTRIBUTION TO OUR KNOWLEDGE OF SILVER-LEAF DISEASE A CONTRIBUTION TO OUR KNOWLEDGE OF SILVER-LEAF DISEASE ISSER BRODY    2008 查看全文

456   Total protein determinations by particle beam/hollow cathode optical emission spectroscopy (PB/HC-OES) system Part 2. Improved sensitivity through use of silica micro-particles as carrier agents for e Total protein determinations by particle beam/hollow cathode optical emission spectroscopy (PB/HC-OES) system Part 2. Improved sensitivity through use of silica micro-particles as carrier agents for e    2004 Silica micro-particles are investigated as possible carrier agents in total protein determinations by particle beam/ hollow cathode optical emission spectroscopy (PB/HC-OES). Parametric optimization for sample treatment, including silica product type, silica concentration, sample incubation temperature and time, sonication time, and solvent pH, is performed for the analysis of bovine serum albumin (BSA) samples. A response curve of C I 193.0 nm emission was obtained under the optimized bovine se... 查看全文

457   Erythromycin micro-particles produced by supercritical fluid atomization Erythromycin micro-particles produced by supercritical fluid atomization    2004 Supercritical fluid-assisted atomization has been used to micronize erythromycin in the range of aerosilizable drugs. This process allows a very efficient production of micro-particles due to the release of supercritical CO2 from the inside of the primary droplets formed during the atomization process. The experiments have been performed using three different organic solvents (methanol, ethanol, acetone) and the influence of several process parameters: feed ratio between CO2 and liquid solution,... 查看全文

458   Electrocatalytic oxidation of methanol on poly(phenylenediamines) film palladized aluminum electrodes, modified by Pt micro-particles: Comparison of permselectivity of the films for methanol Electrocatalytic oxidation of methanol on poly(phenylenediamines) film palladized aluminum electrodes, modified by Pt micro-particles: Comparison of permselectivity of the films for methanol    2007 In the present work we demonstrate the usefulness of the palladized aluminum (Al/Pd) as a new electrode substrate for the electropolymerization of phenylenediamines and fabrication of polymer film modified electrodes. The preparation and properties of poly(o-phenylenediamine) (PoPD), poly(m-phenylenediamine) (PmPD) and poly(p-phenylenediamine) (PpPD) film Al/Pd electrodes further modified with electrodeposition of platinum micro-particles were investigated by cyclic voltammetry. The electrooxida... 查看全文

459   INACTIVATION of PROTEASES and LIPASE IN MILK IN THIN FILM SCRAPED SURFACE HEAT EXCHANGER INACTIVATION of PROTEASES and LIPASE IN MILK IN THIN FILM SCRAPED SURFACE HEAT EXCHANGER Axel Funke and Felix Ziegler    2007 A cascade thin film scraped surface heat exchangers, having sterilizer, regenerator and cooler sections was designed and fabricated. It was employed for inactivation of thermostable proteases and lipases in milk. Buffalo milk was sterilized in the temperature range: 143–152°C for holding times of 0.75, 1.0 and 1.25 s. Samples collected aseptically were stored at 37°C to study the proteolytic and lypolytic activities. the study established that activity of enzymes in milk subjected ... 查看全文

460   Subepidermal Calcified Nodule Subepidermal Calcified Nodule ISSER BRODY    2001 Abstract: Subepidermal calcified nodule is an uncommon, but specific subtype of idiopathic calcinosis. It presents as an asymptomatic, solitary, yellow-white or erythematous filiform. tumor. The most common location is on the head and neck region of male children. Serum calcium and phosphorus levels are normal. Histopathologic examination reveals a focal papillary dermal collection of dark blue-staining, large, amorphous deposits, and/or small calcified globules surrounded by a lymphohistiocytic... 查看全文

461   Effects of glycine on the solid-state synthesis of barium titanate micro-particles with high tetragonality Effects of glycine on the solid-state synthesis of barium titanate micro-particles with high tetragonality    2005 Addition of glycine (Gly), an amino acid, decreases the decomposition temperature of barium carbonate. This accelerates the solid-state addition reaction of BaCO3 with TiO2. By adding Gly and subsequent vibro-milling for 3h, well-dispersed BaTiO3 (BT) micro-particles were obtained with their average size 180 nm and lattice tetragonality 1.0098. The acceleration of the reaction toward BT by Gly is basically attributed to the coordination of Gly to barium to loosen the metal - CO3 bonds and to fac... 查看全文

462   Differential scanning calorimetry studies on poly(ethylene glycol) with different molecular weights for thermal energy storage materials† Differential scanning calorimetry studies on poly(ethylene glycol) with different molecular weights for thermal energy storage materials†    2003 Melting and crystallization behaviour of poly(ethylene glycol) (PEG) with different molecular weights (from 1000 to 35 000) and chosen blends of PEG is investigated by means of differential scanning calorimetry (DSC) operating in dynamic mode at different heating rates. The influence of the molecular weight of PEG on its melting point and enthalpy of fusion is evaluated; from the DSC data the degree of crystallinity is calculated–it is found that there is an increased tendency of hi... 查看全文

463   Preparation and characterization of electroless Ni-Co-P ternary alloy on fly ash cenospheres Preparation and characterization of electroless Ni-Co-P ternary alloy on fly ash cenospheres    2011 The process of ternary Ni-Co-P alloy films deposited on fly ash cenospheres (FACs) through a modified electroless plating way is documented. A pretreatment of FACs by γ-aminopropyltriethoxy silane (APTES) was introduced prior to electroless plating, which improved the continuity and uniformity of the alloy films remarkably. During the plating process, three factors were taken into consideration to investigate the composition and the plating rate of the deposits: mole ratios of NiSO4/CoSO4,... 查看全文

464   Experimental simulation of tribolgical study for the mechanism in a high speed-heavy load ball screw Experimental simulation of tribolgical study for the mechanism in a high speed-heavy load ball screw    2010 Due to the requirements of high-precise platform. applications on semi-conductor and precise mechanical equipments, the developments in transmission ability of high-performance ball screw is now became important in manufacturing industry. However, the actual contact state on surface of ball screw is still hard to measure. In this paper, a two-ring tribology testing machine was used to simulate contact state of ball screw under heavy load and high sliding speed; and several coefficients, includin... 查看全文

465   Cutaneous squamous cell carcinoma with mucinous metaplasia Cutaneous squamous cell carcinoma with mucinous metaplasia Matthew P. Harris, John F. Fallon and Richard O. Prum    2006 A case of superficially invasive well-differentiated cutaneous squamous cell carcinoma containing numerous mucin-proclucing cells both within the epidermal and dermal components is reported. Hislological, histochemical and immunohistochemical overlap exists between these cells and those of extramammary Panel's disease. The presence of mucinous metaplasia within this tumor supports an intraepidermal origin for extramammary Paget's disease. 查看全文

466   Appearance of flaws in layers of AlxGa1−xSb solid solutions during epitaxial growth from the liquid phase Appearance of flaws in layers of AlxGa1−xSb solid solutions during epitaxial growth from the liquid phase A. A. Vilisov, V. P. Germogenov, F. S. Kim;L. E. Épiktetova    1976 Layers of AlxGa1–xSb (x0.7) solid solutions were grown epitaxially from the liquid phase on substrates of gallium antimonide. Aluminum was added to the melt during the buildup of an epitaxial layer. In these layers were found inclusions of the solvent as well as regions of localized chemical inhomogeneities. It is shown here that the appearance of such flaws is intimately related to the relief which the GaSb substrate has formed by the time aluminum enters into the solution. A mechanism o... 查看全文

467   Protease Inactivation in Fish Muscle by High Moisture Twin-Screw Extrusion Protease Inactivation in Fish Muscle by High Moisture Twin-Screw Extrusion Aly Sayed Aly, Byong Dae Jeon and Yun Heum Park    2006 The effects of material temperatures at the die, screw speed, and screw configurations on inactivation of protease in Arrowtooth flounder (Atheresthes stomias)muscle were studied. No inactivation occurred below a material temperature of 40°C in the extruder die. Rapid destruction of protease in Arrowtooth flounder muscle occurred in the range 50–80°C. Complete inactivation of protease occurred at 100°C irrespective of screw speed and configuration. Protease inactivation was hig... 查看全文

468   Evaluation of the Analytical Performance of an Enzyme Immunometric Assay (EIA) Designed to Measure Endogenous Thyroid-Stimulating Hormone (TSH) in Canine Serum Samples Evaluation of the Analytical Performance of an Enzyme Immunometric Assay (EIA) Designed to Measure Endogenous Thyroid-Stimulating Hormone (TSH) in Canine Serum Samples Aly Sayed Aly, Byong Dae Jeon and Yun Heum Park    2010 The analytical performance of a commercially available enzyme immunometric assay (EIA) designed to measure endogenous thyroid-stimulating hormone (cTSH) concentration in canine serum samples was evaluated. The precision of the assay was acceptable with intra- and inter-assay coefficients of variation (CV) of 5 and 11%, respectively. The assay maintained linearity under dilution and recovered added cTSH in a linear and proportional manner. The limit of detection (0.03 μg/L) was well below the ... 查看全文

469   Cellular differentiation of basal cell carcinoma studied with fluorescent lectins and cytokeratin antibodies Cellular differentiation of basal cell carcinoma studied with fluorescent lectins and cytokeratin antibodies    2006 The expression of cellular glycoconjugates and cytokeratin polypeptides in 8 basal cell carcinomas (BCC) was studied using fluorochrome-coupled lectins and different keratin-antibodies. Peanut agglutinin and Wistaria floribunda agglutinin, binding to all layers of normal human epidermis, also stained all cells in the basal cell carcinomas. Dolichos biflorus agglutinin, which in normal epidermis binds only to the basal cells, gave a mottled staining pattern in most of the tumors. Instead, Ulex eu... 查看全文

470   PREDICTION OF DIMETHYL SULFIDE PRODUCTION IN TOMATO SERUM PREDICTION OF DIMETHYL SULFIDE PRODUCTION IN TOMATO SERUM Aly Sayed Aly, Byong Dae Jeon and Yun Heum Park    2006 Actual concentrations of dimethyl sulfide in tomato serum were compared to levels that were predicted from using previously determined kinetic data. Levels of dimethyl sulfide produced during thermal processing of tomato serum were predicted with a high degree of accuracy. A relationship of time, temperature and percent dimethyl sulfide production from kinetic data was shown. 查看全文

471   Large-scale geophysical reconstruction of man-made ground at former industrial iron-furnace plantations Large-scale geophysical reconstruction of man-made ground at former industrial iron-furnace plantations Bernd Kulessa    2006 Blast-iron-furnace plantations were widespread throughout colonial and postcolonial America and therefore represent sites of specific archaeological interest. Because such plantations often were a really extensive, historical reconstruction of a site is challenging using conventional archaeological field techniques alone. Therefore, we appraise the usefulness of integrating magnetic gradiometer, electrical-resistivity tomography (ERT), and electromagnetic (EM31) data in detecting and delineating... 查看全文

472   Laser-induced thermophoresis of individual particles in a viscous liquid Laser-induced thermophoresis of individual particles in a viscous liquid    2011 This paper presents a detailed investigation of the motion of individual micro-particles in a moderately-viscous liquid in direct response to a local, laser-induced temperature gradient. By measuring particle trajectories in 3D, and comparing them to a simulated temperature profile, it is confirmed that the thermally-induced particle motion is the direct result of thermophoresis. The elevated viscosity of the liquid provides for substantial differences in the behavior. predicted by various model... 查看全文

473   Observation of an asymmetry in the thermal hysteresis loop at the scale of a single spin-crossover particle Observation of an asymmetry in the thermal hysteresis loop at the scale of a single spin-crossover particle    2009 We have studied the spin-crossover phenomenon of single isolated micro-particles using a Differential Interference Microscope (DIC) operating in transmission mode. For that we have selected the [Fe(NH2-trz)3]Br2-2.5H2O coordination polymer complex well-known to exhibit, at room temperature, a spin transition with a large thermal hysteresis loop. The comparison of the thermal hysteresis loop of several isolated micro-particles demonstrates some heterogeneity and also an obvious asymmetry of the c... 查看全文

474   Influence of calcination temperature on structural and optical properties of TiO2 thin films prepared by sol-gel dip coating Influence of calcination temperature on structural and optical properties of TiO2 thin films prepared by sol-gel dip coating    2002 TiO2 thin films were prepared by sol-gel dip coating and their structural and optical properties were examined at various calcination temperatures. The X-ray diffraction (XRD) results showed that TiO2 thin film calcined at 300 °C was amorphous, and transformed into the anatase phase at 400 °C, and further into rutile phase at 1000 °C. The phase transformation temperature has been dependent upon the concentration of catalyst HCl. The crystallite size of TiO2 thin films was increased w... 查看全文

475   Grass blade-like microparticle MnPO4·H2O prepared by a simple precipitation at room temperature Grass blade-like microparticle MnPO4·H2O prepared by a simple precipitation at room temperature    2010 Grass blade-like microparticle MnPO4·H2O was synthesized by a simple precipitation at room temperature using a mixture of manganese sulphate monohydrate, phosphoric acid and water at pH=7. The thermogravimetric study indicates that the synthesized compound is stable below 500°C and its final decomposed product is Mn2P2O7. The pure monoclinic phases of the synthesized MnPO4·H2O and its final decomposed product Mn2P2O7 are verified by XRD data. FTIR spectra indicate the presences o... 查看全文

476   The Role of the Group in Patient Evaluation, Counseling, and Management The Role of the Group in Patient Evaluation, Counseling, and Management ERIC ALDEN SMITH    2012 查看全文

477   Room-temperature I-V characteristics of a single hollow La 2/3Ca1/3MnO3 microparticle Room-temperature I-V characteristics of a single hollow La 2/3Ca1/3MnO3 microparticle    2011 In this work we present an electrical characterization of La 2/3Ca1/3MnO3 particles obtained by spray pyrolysis. We optimized the synthesis conditions to obtain the desired compound with the expected structure and the ferromagnetic transition at the same temperature as the bulk material. We found that a post-deposition thermal treatment enhances the magnetic properties of the samples. The study of structural, morphological and magnetic properties shows that the walls of the hollow spheres are co... 查看全文

478   Anisotropy of impurity trapping by epitaxial layers of gallium arsenide near singular faces with different chlorine and tellurium pressures Anisotropy of impurity trapping by epitaxial layers of gallium arsenide near singular faces with different chlorine and tellurium pressures S. E. Toropov, L. G. Lavrent'eva, L. P. Porokhovnichenko;E. V. Uvarova    1985 Trapping of impurities near the poles A, , and was studied. It was found that the rates of trapping of the impurity near the singular faces behaved differently when the chlorine and tellurium pressures were increased. A singular maximum appears on the (111)A face, a singular minimum remains on the face (110), and the face (001) corresponds to the point on the smooth section of the curve which is unsymmetrical with respect to the pole. The results are interpreted based on the assumption of the f... 查看全文

479   Non-telomeric chromosome localization of (TTAGGG)n repeats in the genus Eulemur Non-telomeric chromosome localization of (TTAGGG)n repeats in the genus Eulemur Silvia Garagna, Elena Ronchetti, Silvia Mascheretti, Sergio Crovella, Daniele Formenti, Yves Rumpler    1997 The chromosomal distribution of the (TTAGGG)n telomeric repetitive sequences was studied in the Malagasy species Eulemur fulvus fulvus (2n = 60), Eulemur rubriventer (2n = 50), Eulemur coronatus (2n = 46) and Eulemur macaco (2n = 44). These sequences hybridize to the telomeres of all chromosomes of the four species and also to the pericentromeres of all chromosomes of E. fulvus, E. coronatus and E. macaco, with the exception of the pericentromeres of E. coronatus and E. macaco chromosomes 9, the... 查看全文

480   Kinetic Control of One-Pot Trans-Splicing Reactions by Using a Wild-Type and Designed Split Intein† Kinetic Control of One-Pot Trans-Splicing Reactions by Using a Wild-Type and Designed Split Intein† Neel H. Shah, Dr. Miquel Vila-Perelloacute; and Prof. Tom W. Muir    2011 查看全文

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