Video 1Combination of argon plasma coagulation prior to suturing for endoscopic gastroplasty as revisional and primary intervention method, respectively.
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| http://dx.doi.org/10.1016/j.vgie.2022.08.014 | DOI Listing |
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Upgrades to x-ray microcalorimeter fusion diagnostic to improve calibration, spectral bandwidth selection, and count rate adjustment.
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X-ray Astrophysics Laboratory, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA.
This paper presents progress made toward the overarching goal to adapt single-photon-counting microcalorimeters to magnetic fusion energy research and demonstrate the value of such measurements for fusion. Microcalorimeter spectrometers combine the best characteristics of x-ray instrumentation currently available on fusion devices: high spectral resolution similar to an x-ray crystal spectrometer and broad spectral coverage sufficient to measure impurity species from Be to W. As a proof-of-principle experiment, a NASA-built x-ray microcalorimeter spectrometer has been installed on the Madison Symmetric Torus (MST) at the Wisconsin Plasma Physics Laboratory.
View Article and Find Full Text PDFMicroplasma Controlled Nanogold Sensor for SERS of Aliphatic and Aromatic Explosives with PCA-KNN Recognition.
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York Plasma Institute, School of Physics, Engineering and Technology, University of York, York YO10 5DD, U.K.
Nanogold is an emerging material for enhancing surface-enhanced Raman scattering (SERS), which enables the detection of hazardous analytes at trace levels. This study presents a simple, single-step plasma synthesis method to control the size and yield of Au nanoparticles by using plasma-liquid redox chemistry. The pin-based argon plasma reduces the Au precursor in under 5 min, synthesizing Au spherical particles ranging from ∼20 nm at 0.
View Article and Find Full Text PDFThe effectiveness of different flap-raising techniques for mastectomy in reducing the rate of complications: a network meta-analysis.
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Background: Seroma has been associated with some energy devices used in raising flaps during modified radical mastectomy. Perhaps, its occurrence might be reduced by determining the most effective technique for raising the flap. Hence, the wide array of energy devices available for mastectomy warrants a network meta-analysis for comparison to determine the most suitable for rseducing complications.
View Article and Find Full Text PDFComparison of the Performance of ICP-MS, CV-ICP-OES, and TDA AAS in Determining Mercury in Marine Sediment Samples.
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Mercury (Hg) determination in marine sediment is an analytical challenge due to the toxicity of this element even at low concentrations (up to 130 μg kg in marine sediments) and complex matrices. Therefore, it is necessary to use analytical techniques that have high sensitivity, selectivity, and low limits of quantification (LoQ). In this study, two methods that require sample treatment and one method with direct sampling were studied.
View Article and Find Full Text PDFNitrided Ti-6Al-4V: A Catalyst for Increase Mineralization and Osteogenic Marker Expression.
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Biomedical Engineering Institute, Chiang Mai University, Chiang Mai, Thailand.
Plasma nitriding is one of the surface modifications that show more effectiveness than other methods. In this study, the plasma-based ion implantation (PBII) technique was performed on the surface of titanium alloy (Ti-6Al-4V, Ti64) using a mixture of nitrogen (N) and argon (Ar), resulting in a plasma-nitrided surface (TiN-Ti64). The surface composition of the TiN-Ti64 was verified through X-ray photoelectron spectroscopy (XPS).
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