Results 131 to 140 of about 145,612 (349)

Effectiveness and safety of cold versus hot snare polypectomy: A meta‐analysis

Journal of Gastroenterology and Hepatology, 2018
Removal of neoplastic polyps is important for colorectal cancer prevention. The primary aim was to compare the complete resection rate of diminutive (≤ 5 mm) or small colorectal polyps (6–10 mm) using cold snare polypectomy (CSP) versus hot snare ...
Junyan Qu, H. Jian, Lixiang Li, Yan Zhang, Bing-cheng Feng, Zhen Li, Xiu-li Zuo   +6 more
semanticscholar   +1 more source

Protein structure and phenotypic analysis of pathogenic and population missense variants in STXBP1 [PDF]

, 2017
Background: Syntaxin-binding protein 1, encoded by STXBP1, is highly expressed in the brain and involved in fusing synaptic vesicles with the plasma membrane.
Baker, K, Clayton-Smith, J, Dabir, T, DDD Study, Evers, JMG, Josifova, D, Joss, S, Kerr, B, Kraus, A, Laskowski, RA, McEntagart, M, Morton, J, O'Brien, S, Smith, A, Splitt, M, Suri, M, Thornton, JM, Wright, CF   +17 more
core   +2 more sources

Innovative Processing of Compacted Waste Aluminum Alloy Powders via Controlled Remelting and Solidification

Advanced Engineering Materials, EarlyView.
This study demonstrates an efficient recycling route for out‐of‐spec AlSi10Mg atomized powders through compaction and arc remelting followed by suction casting. By correlating compaction load, cooling rate, and resulting microstructure, we show that intermediate pressures (50–80 kN) and rapid cooling refine dendrites, reduce porosity, and enhance ...
Mila Christy de Oliveira, Marcella Gaute Cavalcante Xavier, Abdoul‐Aziz Bogno, Piter Gargarella, José Eduardo Spinelli   +4 more
wiley   +1 more source

Interaction between Molten Al‐Killed Mn–B Steel and Carbon‐Bonded MgO Refractories Based on Recyclates

Advanced Engineering Materials, EarlyView.
High‐temperature interactions between low‐sulfur Al‐killed Mn–B steel and MgO–C refractories (0 and 50 wt% recyclates) are studied via finger immersion tests (1600 °C). Surface‐active elements influence infiltration. MgO/CaS layer forms, along with spinel and calcium silicate.
Matheus Roberto Bellé, Lukas Neubert, Anton Yehorov, Till M. J. Stadtmüller, Christos G. Aneziris, Olena Volkova   +5 more
wiley   +1 more source

Efficacy and safety of cold snare resection in preventive screening colonoscopy

Endoscopy International Open, 2017
Background and aim Removal of polyps during colonoscopy effectively prevents the development of colorectal cancer. So far, snare resection with high frequency current with or without prior submucosal saline injection is the method of choice.
B. Schett, J. Wallner, V. Weingart, A. Ayvaz, U. Richter, J. Stahl, H.-D. Allescher   +6 more
doaj   +1 more source

Molecular mechanism of fusion pore formation driven by the neuronal SNARE complex

Proceedings of the National Academy of Sciences of the United States of America, 2018
Significance SNARE proteins facilitate the synaptic vesicle fusion with the plasma membrane. The structure of the fusion pore and the mechanism of its formation are not clearly understood. Using coarse-grained molecular dynamics simulations of a nanodisc
Satyan Sharma, M. Lindau
semanticscholar   +1 more source

Anti-doping inconsistencies snare American star [PDF]

, 2007
This article examines the inconsistencies associated with doping control and explains the inequity which results from such inconsistent application particularly where the violation is caused by a recreational substance.
Charlish, P., Heywood, R.
core  

A Thermodynamic 3D Model for the Simulation of Diffusion‐Controlled Alloying Processes in Heterogeneous Material Structures

Advanced Engineering Materials, EarlyView.
A numerical model resulting from irreversible thermodynamics for describing transport processes is introduced, focusing on thermodynamic activity gradients as the actual driving force for diffusion. Implemented in CUDA C++ and using CalPhaD methods for determining the necessary activity data, the model accurately simulates interdiffusion in aluminum ...
Ulrich Holländer, Leonhard Holländer, André Langohr, Hans Jürgen Maier   +3 more
wiley   +1 more source

Microstructural Evolution and Vacancy Defect Formation in Mn–Mo–Ni RPV Steel Under Low Cycle Fatigue: Insights From EBSD and PALS

Advanced Engineering Materials, EarlyView.
Low‐cycle fatigue damage in Mn–Mo–Ni reactor pressure vessel steel is examined using a combined electron backscatter diffraction and positron annihilation lifetime spectroscopy approach. The study correlates texture evolution, dislocation substructure development, and vacancy‐type defect formation across uniform, necked, and fracture regions, providing
Apu Sarkar, Dhanadeep Dutta, G. Bharat Reddy   +2 more
wiley   +1 more source

Reduction of Oxide Inclusions During the High‐Frequency Welding of Steel via a Nonthermal Ar/H2 Plasma Jet

Advanced Engineering Materials, EarlyView.
High‐frequency (HF) welding of steel is limited by oxide inclusions that degrade weld quality. This study demonstrates, for the first time, the integration of a nonthermal Ar/H2 dielectric barrier discharge (DBD) plasma jet into HF welding. Local plasma treatment provides effective shielding and in‐situ oxide reduction, resulting in markedly fewer and ...
Viktor Udachin, Lienhard Wegewitz, René Gustus, Henning Wiche, Wolfgang Maus‐Friedrichs   +4 more
wiley   +1 more source