Abramskrarup0842

DXA, ADP, and isotope dilution showed similar and the best agreement with reference standards. Compared with these laboratory techniques, the validity of estimating body composition by anthropometric equations, skinfolds, and BIA was inferior. In conclusion, the assessment of body composition by laboratory techniques cannot be replaced by field techniques due to introduction of measurement errors, which potentially conceal actual changes in body components. © 2020 World Obesity Federation.The catalytic decomposition of formic acid to generate syngas (a mixture of H 2 and CO) is a highly valuable strategy for energy conversion. Syngas can be used directly in internal combustion engines or can be converted to liquid fuels, meeting the future energy challenges in sustainable way. Herein we report for the first time the use of homogeneous molecular iron catalysts combined with CdS nanorods (NRs) semiconductor to construct a highly efficient photocatalytic system for direct conversion of formic acid to syngas at room temperature and atmospheric pressure. Under optimal conditions, the photocatalytic system presents an activity of 150 mmol·g catalyst -1 ·h -1 toward H 2 , and an apparent quantum yields (AQY) of 16.8%, making it among the most active noble-metal-free photocatalytic systems for H 2 evolution from formic acid under visible light. Meanwhile, these iron-based molecular catalysts also demonstrate remarkable enhancement in CO evolution with robust stability. The mechanistic role of the molecular catalyst is further investigated using UV-Vis spectroscopy and cyclic voltammetry, suggesting the formation of Fe(I) species as the key step in the catalytic conversion of formic acid to syngas. © 2020 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.in English, Spanish ANTECEDENTES En pacientes con metástasis hepáticas colorrectales (colorrectal liver metastases, CRLM), los estudios de imagen preoperatorios pueden incluir resonancia magnética con contraste (ce)MRI y 18 F-FDG-PET-CT. Este estudio evaluó las tendencias y la variación entre los hospitales y las redes oncológicas en el uso de estudios de imagen preoperatorios en los Países Bajos. MÉTODOS Todos los pacientes que se sometieron a una resección hepática por CRLM en los Países Bajos entre 2014 y 2018 fueron seleccionados a partir de una base de datos a nivel nacional auditada. El análisis de regresión logística multivariable se utilizó para evaluar el uso de ceMRI, de 18 F-FDG-PET-CT y de ceMRI combinado con 18 F-FDG-PET-CT, así como para determinar las tendencias en los estudios de imagen preoperatorios y las variaciones hospitalarias y de la red oncológica. RESULTADOS En total, se incluyeron 4.510 pacientes, de los cuales 1.562 se sometieron a ceMRI, 872 a 18 F-FDG-PET-CT y 1.293 a ceMRI combinado con 18 F-FDG-PET-CT. El uso de ceMRI aumentó con el tiempo del 9,6% al 26,2% (P less then 0,001), el uso de 18 F-FDG-PET-CT disminuyó (25% a 6,0%, P less then 0,001) y el uso de ceMRI y 18 F-FDG-PET- CT (17%) se mantuvo estable. La variación no ajustada entre hospitales en el uso de ceMRI, 18 F-FDG-PET-CT y la combinación de ceMRI y 18 F-FDG-PET-CT oscilaba del 5% al 10%. Después de la corrección por case-mix, la variación hospitalaria y de la red oncológica persistía en todas las pruebas de imagen. CONCLUSIÓN En los Países Bajos existe una variación significativa entre hospitales y redes oncológicas respecto al uso de pruebas de imagen preoperatorias para el CRLM. El uso de MRI está aumentando, mientras que el uso de 18 F-FDG-PET-CT está disminuyendo.We studied the opisthonephric (mesonephric) kidneys of adult male and female Xenopus laevis using scanning electron microscopy (SEM) of vascular corrosion casts and light microscopy of paraplast embedded tissue sections. Both techniques displayed glomeruli from ventral to mid-dorsal regions of the kidneys with single glomeruli located dorsally close beneath the renal capsule. Glomeruli in general were fed by a single afferent arteriole and drained via a single thinner efferent arteriole into peritubular vessels. Light microscopy and SEM of vascular corrosion casts revealed sphincters at the origins of afferent arterioles, which arose closely, spaced from their parent renal arteries. The second source of renal blood supply via renal portal veins varied interindividually in branching patterns with vessels showing up to five branching orders before they became peritubular vessels. Main trunks and their first- and second-order branches revealed clear longish endothelial cell nuclei imprint patterns oriented parallel to the vessels longitudinal axis, a pattern characteristic for arteries. Peritubular vessels had irregular contours and were never seen as clear cylindrical structures. They ran rather parallel, anastomosed with neighbors and changed into renal venules and veins, which finally emptied into the ventrally located posterior caval vein. https://www.selleckchem.com/products/pyridostatin-trifluoroacetate-salt.html A third source of blood supply of the peritubular vessels by straight terminal portions of renal arteries (vasa recta) was not found. © 2020 The Authors. Journal of Morphology published by Wiley Periodicals LLC.Garnet-phase solid-state electrolytes, with high ionic conductivity and wide electrochemical windows, promise safe and energy-dense Li metal batteries. However, integrating them with Li metal faces crucial challenges including large resistance and dendrite formation at the interface, and therefore current Li/garnet electrodes, albeit with delicate interfacial designs, cannot rival liquid-electrolyte Li metal electrodes in performance. In this work, we make use of the energetic chemical reaction between Zn(NO 3 ) 2 and Li to create a solid-state interface between Li metal and Li 6.4 La 3 Zr 1.4 Ta 0.6 O 12 (LLZTO) electrolyte. This interlayer, composed of Zn, ZnLi x alloy, Li 3 N, Li 2 O and other species, possesses strong affinities with both Li metal and LLZTO and affords highly efficient conductive pathways for Li + transport through the interface. The unique structure and properties of the interlayer lead to Li metal anodes with longer cycle life, higher efficiency and better safety compared to the current best Li metal electrodes operating in liquid electrolytes while retaining comparable capacity, rate, and overpotential.