Results 221 to 230 of about 194,346 (301)

Comparison of different X‐ray‐based scanning electron microscopy methods to detect sub‐nanometre ultra‐thin InAs layers deposited on top of GaAs

Journal of Microscopy, EarlyView.
Abstract We compare three different methods of X‐ray analysis in a scanning electron microscope (SEM): energy‐dispersive X‐ray spectroscopy (EDX), wavelength‐dispersive X‐ray spectroscopy (WDX) and micro X‐ray fluorescence (μXRF). These methods are all applied to the same gallium arsenide (GaAs) wafer with a 0.8 nm layer of indium arsenide (InAs) on ...
Thomas Walther, Stuart Creasey‐Gray, Stephan Boehm, Heath Young, Yang Yang   +4 more
wiley   +1 more source

Determining bismuth content in GaAsBi alloys by energy‐dispersive X‐ray spectroscopy: A case study with multiple sets of k*‐factors for analytical transmission electron microscopy

Journal of Microscopy, EarlyView.
Abstract Measuring the bismuth (Bi) content of ternary gallium arsenide bismuthide (GaAsBi) alloys is important because it sensitively influences their bandgap, and Bi is known to segregate vertically to the surface and sometimes also laterally during growth, so elemental distribution maps need to be quantified.
T. Walther
wiley   +1 more source

Running an electron microscopy core facility

Journal of Microscopy, EarlyView.
Abstract As electron microscopes became more costly, technically complex, and integral to a wide range of scientific fields, centralised electron microscopy (EM) core facilities have become essential for maintaining accessibility, performance, and quality.
Ilkka Miinalainen, Eija Jokitalo
wiley   +1 more source

Prenatal arsenic exposure and gene expression in fetal liver, heart, lung, and placenta. [PDF]

Toxicology
Rychlik KA, Sanchez SS, Kashiwagi C, Liao JS, Mathur A, Illingworth EJ, Kleensang A, Maertens A, Sillé FCM.   +8 more
europepmc   +1 more source

Analysis of Essential Minerals and Heavy Metals in Canine and Feline Dietary Supplements Marketed in the United States

Journal of Animal Physiology and Animal Nutrition, EarlyView.
ABSTRACT Heavy metals have been documented in dietary supplements for people and animals. Cadmium, selenium, lead, and mercury are of particular concern. Our objective was to determine the concentrations of five essential minerals and 12 heavy metals in 70 canine and feline dietary supplements, and to evaluate potential toxicity risks.
Taryn K. Pestalozzi, Andrea J. Fascetti, Jennifer A. Larsen   +2 more
wiley   +1 more source

Leaching of Oxyanionic Trace Contaminants from Metakaolin Geopolymers under Batch or Continuous Water Extraction. [PDF]

ACS Omega
Kurtulus C, Luukkonen T.
europepmc   +1 more source

Ocean warming indirectly affects seagrass performance through effects on sediment microbial communities

New Phytologist, EarlyView.
Summary Belowground microbes are increasingly recognised as mediators of plant responses to stress, but it remains unclear whether the thermal histories of marine plants and their associated belowground microbes influence plant performance under ocean warming.
Renske Jongen, Paul E. Gribben, Katherine R. Erickson, Ezequiel M. Marzinelli   +3 more
wiley   +1 more source

Quantitative Analysis of Arsenic- and Sucrose-Induced Liver Collagen Remodeling Using Machine Learning on Second-Harmonic Generation Microscopy Images. [PDF]

Cells
Maldonado-Terrón M, Guerrero-Lara JC, Felipe-Elizarraras R, Frausto-Avila CM, Manriquez-Amavizca JP, Velasco M, Borja ZI, Cruz-Ramírez H, Rivera AL, Hiriart M, Quiroz-Juárez MA, U'Ren AB.   +11 more
europepmc   +1 more source

Cytokinin downregulates Photosystem II photochemistry during prolonged darkness in a phytochrome B‐dependent manner

New Phytologist, EarlyView.
Cytokinin–phyB signaling modulates PSII photochemistry during prolonged darkness. Summary Cytokinins (CKs) delay dark‐induced senescence, but how they tune photosynthetic function in darkness remains unclear. We investigated the effects of classical aromatic CK benzylaminopurine and CK‐derived compound 1‐(2‐methoxyethyl)‐3‐(1,2,3‐thiadiazol‐5‐yl)urea ...
Veronika Kábrtová, Zuzana Kučerová, Ivo Chamrád, René Lenobel, Pavel Roudnický, Jan Skalák, Martin Hudeček, Filip Zavadil Kokáš, Marek Rác, Tereza Vánská, Jaroslav Nisler, Jan Hejátko, Miroslav Strnad, Martina Špundová, Ondřej Plíhal   +14 more
wiley   +1 more source

Correction: Wild <i>Cordyceps sinensis</i> exhibits far lower arsenic accumulation and hepatorenal toxicity in mice compared to equivalent dose of inorganic arsenic. [PDF]

Front Pharmacol
Gao L, Yang H, Ma J, Bi H, Xiao Y, Li C, Wei L.   +6 more
europepmc   +1 more source