Barium molybdate nanoparticles exhibiting up-conversion luminescence were synthesized the solvothermal method. Analysis revealed a prominent signal corresponding to the (112) plane in the XRD pattern, indicating the tetragonal structure of the synthesized nanoparticles. Raman spectroscopy detected the symmetric stretching frequencies of MoO.
View Article and Find Full Text PDFIn this study, we successfully synthesized rare-earth-doped crystalline SrWO at room temperature by co-precipitation. The results from the X-ray diffraction analysis showed a main diffraction peak related to the (112) plane. Phosphors doped with either Dy or Sm ions showed strong light absorption in the UV region and blue-yellow and red light emission.
View Article and Find Full Text PDFA BaMoO:[Er]/[Yb] up-conversion (UC) phosphor was synthesized by co-precipitation and calcination of the precursor at 800 °C. The main peak (112) for the synthesized phosphor was strongly detected in the XRD pattern and had a tetragonal structure. The doping of rare-earth ions affected the crystal lattice by shifting the main peak, decreasing the lattice constant, and shifting the position of the Raman signal.
View Article and Find Full Text PDFThermally stable SrWO:[Er]/[Yb] upconversion phosphors were synthesized. X-ray diffraction analysis indicated a crystalline inorganic phosphor material with a tetragonal structure having a clear peak in the (112) phase, which is the main peak. The upconversion phosphor was synthesized using a precursor prepared by co-precipitation and sintered at 800 °C.
View Article and Find Full Text PDFCrystalline BaMoO:Dy and BaMoO:Sm phosphors were synthesized by co-precipitation at room temperature. The main peak (112) phase and tetragonal structure were confirmed using X-ray diffraction analysis. The lattice constant and Raman signal on were changed by the rare earth doping.
View Article and Find Full Text PDFCrystalline CaMoO and rare-earth-doped CaMoO:RE (RE = Tb, Eu) phosphors were synthesized at room temperature using a co-precipitation method. The crystal structure of the synthesized powder was a tetragonal structure with a main diffraction peak (112) phase. When CaMoO was excited at 295 nm, it showed a central peak of 498 nm and light emission in a wide range of 420 to 700 nm.
View Article and Find Full Text PDFBackground: The purpose of this study is to develop a clinical application program that automatically calculates the effect for secondary cancer risk (SCR) of individual patient. The program was designed based on accurate dose calculations using patient computed tomography (CT) data and Monte Carlo engine. Automated patient-specific evaluation program was configured to calculate SCR.
View Article and Find Full Text PDFHexagonal boron nitride was synthesized by pyrolysis using boric acid and melamine. At this time, to impart luminescence, rare earth cerium ions were added to synthesize hexagonal boron nitride nanophosphor particles exhibiting deep blue emission. To investigate the changes in crystallinity and luminescence according to the re-heating temperature, samples which had been subjected to pyrolysis at 900 °C were subjected to re-heating from 1100 °C to 1400 °C.
View Article and Find Full Text PDFMyofibromas are mesenchymal tumours of myofibroblastic origin that occur in solitary or multicentric forms. Solitary benign myofibromas mainly occur on the head and neck, especially in the subcutaneous region. They rarely occur in visceral organs in humans, but visceral myofibroma has not been reported in animals.
View Article and Find Full Text PDFBarium tungstate (BaWO) powders with various sintering temperatures, and BaWO:Dy phosphor samples with concentrations of different rare-earth (RE) activator ions (Dy, Sm, Tb) were prepared through co-precipitation. The structural, morphological, and photoluminescent characteristics of barium tungstate phosphors depend on the concentration of RE ions. The crystallographic characteristics of the synthesized BaWO were analyzed using X-ray diffraction (XRD) patterns.
View Article and Find Full Text PDFBackground: Fabry disease is characterised by the progressive accumulation of globotriaosylceramide (Gb3) and related glycosphingolipids in vascular endothelial cells. Enzyme replacement therapy (ERT) clears this accumulation. We analysed plasma proteome profiles before and after ERT to characterise its molecular pathology.
View Article and Find Full Text PDFPurpose: To investigate dose perturbations for pacemaker-implanted patients in partial breast irradiation using high dose rate (HDR) balloon brachytherapy.
Methods: Monte Carlo (MC) simulations were performed to calculate dose distributions involving a pacemaker in Ir-192 HDR balloon brachytherapy. Dose perturbations by varying balloon-to-pacemaker distances (BPD = 50 or 100 mm) and concentrations of iodine contrast medium (2.
Purpose: We attempted to determine the degree of rotation of the femoral component to achieve an ideal rectangular flexion gap with minimal medial collateral ligament (MCL) release using a modified measured technique.
Materials And Methods: Group I consisted of 60 osteoarthritis patients (72 cases) who underwent total knee arthroplasty (TKA) with minimal MCL release and Group II consisted of 48 patients without osteoarthritis (61 cases). We performed computed tomography (CT) scanning of the knee with 90 degree flexion in all of the patients and analyzed the angles between the distal femur landmarks and the tibial mechanical axis using a Picture Archiving Communication system.
The present study aimed to assess the clinicopathological characteristics and the prognosis of renal cell carcinoma (RCC) in children. We retrospectively reviewed the medical records of 11 Korean children (7 boys and 4 girls) undergoing radical nephrectomy for RCC between September 1997 and January 2008 at our institution. Mean age at diagnosis was 12.
View Article and Find Full Text PDFProteorhodopsin (PR), a retinal-containing seven transmembrane helix protein, functions as a light-driven proton pump. Using PCR, we isolated 18 PR variants originating from the surface of the Arctic Ocean. Their absorption maxima were between 517 and 546 nm at pH 7.
View Article and Find Full Text PDFOral Surg Oral Med Oral Pathol Oral Radiol Endod
July 2005
Objectives: Autotransplantation is a viable option for treating missing teeth when a donor tooth is available. The aim of this study was to evaluate the prognosis in addition to the causes of failure in 182 autotransplanted teeth.
Study Design: A total of 182 cases of autotransplantation were analyzed.
Biotechnol Lett
December 2003
The addition of 1% (v/v) ethanol to the basal medium inhibited growth of Gluconacetobacter hansenii but decreased the numbers of non-cellulose producing cells. Cellulose production increased 1.7 times to approx.
View Article and Find Full Text PDFThe unfolding and inhibition study of mushroom tyrosinase have been studied in the presence of different denaturants such as sodium dodecyl sulfate (SDS), guanidine hydrochloride (GdnHCl), and urea. The kinetic two-phase rate constants were commonly measured from semilogarithmic plots of the activity versus time, which resolved into two straight lines, indicating that the inactivation process consisted of fast and slow phases as a first-order reaction. This result also implied that transient partially folded intermediate existed during tyrosinase unfolding pathway.
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