Results 51 to 60 of about 1,317 (164)

Tracheal chambers as a key innovation for high‐frequency emission in bat echolocation

The Anatomical Record, EarlyView.
Abstract Key innovations are pivotal for biodiversity and facilitating evolutionary success, enabling organisms' adaptation to various ecological niches through the diversification of phenotypic traits. In mammals, notable adaptations include evolving hypsodonty for grazing on grasses and, for bats, evolving echolocation and wing acquisition.
Nicolas L. M. Brualla, Laura A. B. Wilson, Khizar Hayat, Michael Doube, Vuong Tan Tu, Thongchai Ngamprasertwong, Thanakul Wannaprasert, Daisuke Koyabu   +7 more
wiley   +1 more source

Coupling of HO_x, NO_x and halogen chemistry in the antarctic boundary layer [PDF]

Atmospheric Chemistry and Physics, 2010
A modelling study of radical chemistry in the coastal Antarctic boundary layer, based upon observations performed in the course of the CHABLIS (Chemistry of the Antarctic Boundary Layer and the Interface with Snow) campaign at Halley Research Station in ...
R. A. Salmon, A. Saiz-Lopez, S. J.-B. Bauguitte, J. M. C. Plane, D. E. Heard, J. D. Lee, M. Camredon, W. J. Bloss, A. E. Jones   +8 more
doaj   +1 more source

Nitrooxylation in Organic Synthesis: From Classical Nitrate Ester Formation to Modern Catalytic Strategies

Chemistry – A European Journal, EarlyView.
Nitrooxylation—the installation of nitrate esters (–ONO2) has evolved from classical mixed‐acid protocols to catalytic and mechano‐, flow‐, photo‐, and electrochemical strategies. This review delineates ionic and radical manifolds for C–ONO2 bond formation, emphasizing mechanistic control, selected substrate scope, and selectivity.
Jayanta Dey, Dmitry Katayev
wiley   +1 more source

Surface Inorganic Iodine Speciation in the Indian and Southern Oceans From 12°N to 70°S

Frontiers in Marine Science, 2020
Marine iodine speciation has emerged as a potential tracer of primary productivity, sedimentary inputs, and ocean oxygenation. The reaction of iodide with ozone at the sea surface has also been identified as the largest deposition sink for tropospheric ...
Rosie Chance, Liselotte Tinel, Amit Sarkar, Alok K. Sinha, Anoop S. Mahajan, Racheal Chacko, P. Sabu, Rajdeep Roy, Tim D. Jickells, David P. Stevens, Martin Wadley, Lucy J. Carpenter   +11 more
doaj   +1 more source

Local Structures of Se and Br in Cretaceous–Paleogene Boundary Sediments and Concentration Effects of Ferrihydrite Originating From Impact Ejecta

Geological Journal, EarlyView.
Chemical states of Se and Br atoms in the KPg boundary sediments from Stevns Klint were studied using XAFS spectroscopy. The high concentrations of Se4+ could become an index of the degree to which the global environment was soiled with dust and ash derived from impact ejecta or volcanic eruptions.
Kei‐ichiro Murai, Akira Yoshiasa, Ginga Kitahara, Makoto Tokuda, Satoko Ishimaru, Toshihiro Moriga   +5 more
wiley   +1 more source

Insights Into Microscale Biomineralization in Deep‐Sea Callogorgia Coral via Halogen Banding

Geochemistry, Geophysics, Geosystems, Volume 27, Issue 9, September 2026.
Abstract Halogen incorporation into coral carbonate skeletons serves as a valuable proxy for reconstructing paleoenvironments. However, the underlying mechanisms remain poorly understood. This study employed femtosecond laser ablation‐inductively coupled plasma time‐of‐flight mass spectrometry (fs‐LA‐ICP‐TOFMS) to perform multi‐elemental (I, Br, P, Ca,
Xuna Yin, Miaohong He, Xiaotong Peng, Kaiwen Ta, Hengchao Xu, Zhisen Liang, Xuefei Chen, Wenfeng Deng, Gangjian Wei   +8 more
wiley   +1 more source

Structural Responses of Aluminoborosilicate Glasses to Pressure and Iodine Incorporation: An Advanced NMR Investigation

Journal of the American Ceramic Society, Volume 109, Issue 9, September 2026.
Pressure densifies the glass network and enhances iodine retention, while iodine promotes local repolymerization of the silicate network. ABSTRACT Iodine‐129 is a critical challenge for nuclear waste immobilization due to its high mobility and extremely long half‐life (1.57 × 107 years).
Hanyu Hu, Sami Soudani, Yann Morizet, Michael Paris, Thibault Charpentier   +4 more
wiley   +1 more source

Iodine Accumulation and Biovolatilization by Filamentous Fungi and Their Effects on Extracellular Organic Acids

Journal of Fungi
This study investigates the accumulation, volatilization, and metabolic effects of two iodine species (iodide and iodate) in selected filamentous fungi.
Eva Duborská, Zeinab Zamani, Bence Farkas, Marek Bujdoš, Hana Vojtková   +4 more
doaj   +1 more source

Noninnocent Deep Eutectic Solvents Enable Selective, Sustainable Nickel‐Catalyzed Cross‐Electrophile Couplings to Diarylmethanes

ChemSusChem, Volume 19, Issue 16, 27 August 2026.
Ni‐catalyzed cross‐electrophile coupling (XEC) of aryl iodides with benzyl chlorides proceeds efficiently in the deep eutectic solvent (DES) choline chloride/urea, replacing hazardous amide solvents. Under mild, aerobic, heterogeneous conditions, diarylmethanes form in up to 95% yield.
Andrea Nicola Paparella, Maristella Simone, Alessia Battezzato, Laura Chevet, Laetitia Chausset‐Boissarie, Muriel Durandetti, Filippo Maria Perna, Vito Capriati   +7 more
wiley   +1 more source

Inorganic iodine speciation in tropical Atlantic aerosol [PDF]

Geophysical Research Letters, 2004
The inorganic speciation of soluble iodine has been determined in size‐fractionated aerosol samples collected from the tropical Atlantic Ocean in October/November 2002 during Meteor cruise 55, a pilot study of the German SOLAS programme. Iodide concentrations were appreciable (>0.4 pmol m−3) in the fine and coarse modes of all samples whereas iodate
openaire   +2 more sources