Results 101 to 110 of about 3,020 (234)
Fractionation of Stable Isotopes of Sulfur by Microorganisms and Their Role in Deposition of Native Sulfur [PDF]
Applied Microbiology, 1957 G E, JONES, R L, STARKEY
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The 40K‐K dating system: 1. Improving data interpretation using new model calculations
Meteoritics &Planetary Science, EarlyView.Abstract The 40K‐K cosmic‐ray exposure (CRE) dating system offers a promising method for determining exposure ages of iron meteorites by combining the radioactive cosmogenic 40K with the stable cosmogenic isotopes 39K and 41K. However, earlier applications relied on semi‐empirical production models and inconsistent analytical data sets, limiting their ...
Farshid Nozarian +2 more
wiley +1 more source
Meteoritics &Planetary Science, EarlyView.Abstract We report the discovery of the second (Al,Cu)‐alloy–bearing micrometeorite, FB‐A2, recovered from Mount Gariglione (southern Italy), representing the sixth such occurrence worldwide. Although chondritic in nature, FB‐A2 differs markedly from previously described microspherules.
Giovanna Agrosì +6 more
wiley +1 more source
Description and terrestrial ages of the Calama Area Meteorite Collection (Atacama Desert, Chile)
Meteoritics &Planetary Science, EarlyView.Abstract We present a comprehensive study of a meteorite collection from the Atacama Desert (Chile), the driest and most climatically stable desert in the world. This collection includes meteorites from three adjacent Dense Collection Areas (DCAs) in the northern part of the Atacama Desert: Calama, Sierra Gorda, and Chug Chug, referred to as the ...
Carine Sadaka +9 more
wiley +1 more source
Metabolic Rewiring of the Shikimate Pathway Enables Rose‐Scented Rice
Plant Biotechnology Journal, EarlyView.ABSTRACT Rice fragrance is a key determinant of grain quality, yet the aroma profile of cultivated rice is highly uniform and largely dominated by the popcorn‐like compound 2‐acetyl‐1‐pyrroline. Here we expanded the aromatic repertoire of rice by engineering a rose‐like fragrance through reconstruction of the phenylalanine‐derived 2‐phenylethanol (2‐PE)
Xiaoqing Cui +11 more
wiley +1 more source
ISOTOPIC FRACTIONATION OF SULFUR IN GYPSUM CRYSTALS
Chinese Journal of Applied Chemistry, 1989 Jianzhuang Jiang, Qinglian(T. Zhang
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Sulfur isotope fractionation during the evolutionary adaptation of a sulfate-reducing bacterium. [PDF]
Appl Environ Microbiol, 2015 Pellerin A +5 more
europepmc +1 more source
Rapid Communications in Mass Spectrometry, Volume 40, Issue 19, 15 October 2026.ABSTRACT Rationale Nitrogen isotope values have been widely used for tracing ancient biogeochemical processes, but contaminant‐sensitive materials, such as Precambrian sedimentary rocks, meteorites, or returned extraterrestrial samples, often have low nitrogen levels and are thus vulnerable to modern organic contamination.
Kunmanee Bubphamanee +2 more
wiley +1 more source
Rapid Communications in Mass Spectrometry, Volume 40, Issue 17, 15 September 2026.ABSTRACT Rationale Portable mass spectrometry systems such as miniRUEDI enable rapid and low‐cost field analysis of dissolved gases with high temporal resolution. However, they remain poorly suited for discrete small‐volume water samples. This study presents an approach based on passive sampling for groundwater and surface waters dissolved gases and ...
Antoine Picard +4 more
wiley +1 more source
Food Frontiers, Volume 7, Issue 5, September 2026.Kiwifruit seed polyphenols (KSP) alleviate high‐fat diet‐induced obesity and metabolic dysfunction in mice by reducing body weight gain, adiposity, hepatic steatosis, and insulin resistance. KSP also suppresses inflammation, improves lipid metabolism, and reshapes gut microbiota composition, restoring short‐chain fatty acid production, thereby ...
Qingqing Liu +7 more
wiley +1 more source