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Laparoscopic jejunostomy during McKeown minimally invasive esophagectomy: a propensity score analysis.
Surg Endosc
January 2025
Department of Thoracic Surgery, Army Medical Center of PLA (Daping Hospital), Army Medical University, Changjiang Route #10, Daping, Chongqing, 400042, People's Republic of China.
Background: Nutrition is a key factor limiting the rapid recovery of patients undergoing esophagectomy, but there is as yet no consensus on the optimal route of nutritional support. This study aimed to evaluate the potential benefits of laparoscopic jejunostomy (Lap-J) in comparison to conventional nasoenteral tube (NT) feeding in patients who underwent McKeown minimally invasive esophagectomy (MIE).
Methods: A total of 577 consecutive patients with esophageal squamous cell carcinoma (ESCC) who underwent McKeown MIE were included in this single-center retrospective study.
Sequential Conversion of Vinyl Triflates to 1,2-Disilanes via Technical Control of Magnesium and Calcium Reducibility Differences.
Org Lett
January 2025
Department of Materials Science and Bioengineering, Nagaoka University of Technology, 1603-1, Kamitomioka-cho, NagaokaNiigata 940-2188, Japan.
Reductive direct substitution of α-arylvinyl triflates on the sp carbon atom by magnesium in the presence of chlorosilane proceeded to give the corresponding α-silylstyrenes, which could not be reduced further, and the reaction completely stopped because the reduction potential of α-silylstyrenes lies out of the reducible field of magnesium. The subsequent reduction of α-silylstyrenes by calcium brought about the second introduction of another silyl group to the vicinal carbon atom to lead a selective and simple route to a variety of 1,2-disilanes from vinyl triflates by cooperative works of magnesium and calcium with different reduction potentiality.
View Article and Find Full Text PDFA Simple and Efficient Stereoselective Synthesis of a 2,3-Difluorosialic acid-based influenza virus neuraminidase inhibitor.
Chemistry
January 2025
Griffith University - Gold Coast Campus, Institute for Biomedicine and Glycomics, Parklands Drive, 4222, Southport, AUSTRALIA.
3-Fluoroneuraminosyl fluorides are invaluable probes for studying the catalytic mechanism of sialidases (neuraminidases), and as sialidase inhibitors. Significantly, when a C-3 equatorial fluorine is installed on a C-4 functionalised N-acylneuraminic acid (Neu)-based template, the compounds are potent and selective inhibitors of both influenza and parainfluenza sialidases, and of virus replication. Typically, the reported syntheses of 3-fluoroneuraminosyl fluorides involve either an enzymatic or a chemical synthesis that have uncontrolled stereoselectivity in the introduction of fluorine at C-3 of Neu and consequently yield a mixture of C-3 ax and C-3 eq fluoro derivatives.
View Article and Find Full Text PDFThe control of temporal noise of the pump could add an additional degree of freedom to manipulate the spectrum of continuous-wave (CW) pumped SC generation. In this paper, we experimentally tailor the CW-pumped supercontinuum (SC) generation in a cascaded Raman random fiber laser (CRRFL) based on a 1 µm pump with tunable temporal dynamics. The pump is based on a spectrally filtered ytterbium-doped random fiber laser (YRFL) seed laser, which can be amplified to a 10 W level with the tunable temporal noise.
View Article and Find Full Text PDFFactors affecting iron and manganese dissolution in groundwater: treatments with simultaneous oxidation and precipitation methods.
Environ Technol
January 2025
Tekirdağ Metropolitan Municipality, TESKİ, Water and Sewerage Administration, Tekirdağ, Turkey.
This study explores variations in groundwater (GW) pH, conductivity, ammonium, iron, and manganese parameters to reveal prospective interactions having an impact on the dissolved metal concentrations. To this end, bivariate and partial correlation procedures were applied to the data to obtain incisive evaluation. Besides characterisation efforts, photocatalytic iron and manganese removal experiments were also carried out with Ni-doped TiO nano-composite thin films (TFs) on real GW samples.
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