Results 211 to 220 of about 11,557,211 (324)

Oxaziridines: Versatile Reagents in Modern Organic Synthesis

The Chemical Record, EarlyView.
Being capable of transferring an O atom and N‐group/atom, oxaziridines are considered multitasking agents. These are employed for diverse organic transformations, such as epoxidation of olefins, α‐ and γ‐hydroxylation/amination of carbonyl compounds, oxidation of sulfides, [3+2]cycloaddition with unsaturated systems.
Ajeet Chandra, Subba Rao Cheekatla, Keshaba Nanda Parida   +2 more
wiley   +1 more source

A Deep Learning-Enabled Ionogram Dataset for Detection and Classification of Low-latitude Spread-F Phenomena. [PDF]

Sci Data
Gao P, Zhu Q, Cai J, Wang Z, Wang G, Zhan M, Qi Q, Shi J, Qiu C, Wang B, Zhu Y, Wang X, Ding K.   +12 more
europepmc   +1 more source

Toward Silica‐Free Compliance: A Low‐Viscosity Sample Pretreatment Methodology for Crystalline Quartz Quantification in Viscous Pastes

X-Ray Spectrometry, EarlyView.
ABSTRACT Crystalline quartz, the most common crystalline silica polymorph, is widely found in industrial products. It is of high regulatory relevance, because its fine fraction, a form of respirable crystalline silica, is classified as an occupational carcinogen, with product‐content thresholds (e.g., 0.1% (w/w) in the European Union) and stringent ...
Giacomo Siviero, Michelle Buoso, Diego Andreola, Giulia Moro   +3 more
wiley   +1 more source

Centennial-scale intensifications of the Atlantic Meridional Overturning Circulation during Heinrich Stadial 1. [PDF]

Nat Commun
Jena PS, Chiessi CM, Beese I, Butzin M, Dias BB, Campos MC, Lohmann G, Mulitza S.   +7 more
europepmc   +1 more source

Magnetic Structure of the High‐TN Antiferromagnet La0.5Sr3.5Fe3O7.5F2.6: A Temperature‐Dependent Mößbauer Spectroscopy and Neutron Diffraction Study

Zeitschrift für anorganische und allgemeine Chemie, EarlyView.
La0.5Sr3.5Fe3O7.5F2.6, a rare n = 3 Ruddlesden–Popper oxyfluoride, exhibits robust antiferromagnetism across a wide temperature range from 1.7 to 470 K. Temperature‐dependent neutron diffraction reveals an orthorhombic nuclear and a monoclinic magnetic structure, while Mößbauer spectroscopy shows persistent short‐range magnetic order up to 525 K.
Andy Bivour, Jonas Jacobs, Roberto Köferstein, Florian Daumann, Gerald Hörner, Birgit Weber, Clemens Ritter, Walter Schnelle, Claudia Felser, Stefan G. Ebbinghaus   +9 more
wiley   +1 more source

Suppression of pre-monsoon tropical cyclones over the north Indian Ocean. [PDF]

Sci Rep
Emmanuel R, Deshpande M, Kanase R, Jana S, Sarkar S, Himabindu H, Ganai M, B RR, Tirkey S, Ahire P, Kumar U.   +10 more
europepmc   +1 more source

On the enigma of day‐to‐day variability in equatorial spread F

, 2005
R. Tsunoda
semanticscholar   +1 more source

Testicular Echobiometry and Sperm Characterization in Oncilla (Leopardus tigrinus) From the Caatinga Biome

Zoo Biology, EarlyView.
We describe testicular echobiometry and sperm characterization in oncilla (Leopardus tigrinus) from the Caatinga biome, Ceará, Brazil. ABSTRACT Among neotropical small felids, the Leopardus tigrinus is classified as vulnerable by the International Union for Conservation of Nature, but studies on reproductive morphology and physiology are scarce for ...
Yuri Gonçalves Matos, Herlon Victor Rodrigues Silva, Bruna Farias Brito, Patrícia Vasconcelos Alves, Romário Parente dos Santos, Andreia Maria da Silva, Alexsandra Fernandes Pereira, Wojciech Janusz Niżański, Alexandre Rodrigues Silva   +8 more
wiley   +1 more source

Structuring of intermediate scale equatorial spread F irregularities during intense geomagnetic storm of solar cycle 24

, 2016
B. Kakad, P. Gurram, P. Tripurasundari, A. Bhattacharyya   +3 more
semanticscholar   +1 more source

Correlative X‐ray imaging and fluorescence microscopy in hydrated environments

Journal of Synchrotron Radiation, EarlyView.
We present a combined imaging platform that integrates beamline‐compatible fluorescence microscopy with scanning small‐angle X‐ray scattering to enable sequential multimodal investigations of hydrated cells under near‐native conditions. We apply our method to ordered cytoskeletal structures in different cell types and demonstrate the direct correlation
Mangalika Sinha, Boram Yu, Rita Mendes Da Silva, Ulrike Rölleke, Peter Luley, Malte Tiburcy, Wolfram-Hubertus Zimmermann, Manfred Burghammer, Sarah Köster   +8 more
wiley   +1 more source