Results 141 to 150 of about 177,797 (288)

A universal brown dwarf desert formed between planets and stars. [PDF]

Proc Natl Acad Sci U S A
Cui K, Xiao GY, Feng F, Liu B, Nayakshin S, Hall C, Guo K, Lai D, Ogihara M, Rui Y, Boss AP, Butler RP, Xuan Y.   +12 more
europepmc   +1 more source

Early evolutionary history of the seed

Biological Reviews, EarlyView.
ABSTRACT The seed is an essential stage in the life history of gymnospermous and angiospermous plants, facilitating both their survival and dispersal. We reappraise knowledge of the evolutionary history of the gymnospermous seed, from its origin in the late Devonian through to the well‐known end‐Permian extinctions – an interval encompassing the ...
Richard M. Bateman, Alan R. T. Spencer, Jason Hilton   +2 more
wiley   +1 more source

A Large and Precise All-Sky Photometric Standard Star Dataset Across More Than 200 Passbands. [PDF]

Sci Data
Xiao K, Huang Y, Yuan H, Huang B, Fan D, Beers TC, Li Z, Han H, Zhang Q, Wang T, Ma M, Wang Y, Xu S, Yang L, Liu J.   +14 more
europepmc   +1 more source

Quantification of Palmar and Digital Epidermal Thickness and Sweat Duct Density

Clinical Anatomy, EarlyView.
ABSTRACT Palmar digital skin, with its high density of epidermal sweat glands and unique stratum corneum, derives its autonomic innervation from peripheral nerves. Understanding the changes to these structures could serve as objective proxy markers following peripheral nerve injury and interventions to promote regeneration.
Elizabeth Jones, Hanaa N. Mughal, Roxana Moscalu, Malachy Columb, Christopher Duff, Mark Dickinson, Adam J. Reid, Ralph N. A. Murphy   +7 more
wiley   +1 more source

A tidal disruption event from an intermediate-mass black hole revealed by comprehensive multi-wavelength observations. [PDF]

Nat Commun
Wang J, Huang M, Xue Y, Jiang N, Huang S, Wang Y, Zhu J, Zhu S, Dai L, Jin C, Luo B, Shu X, Sun M, Wang T, Zou F.   +14 more
europepmc   +1 more source

An Introduction to Stellar Astronomy [PDF]

Nature, 1899
openaire   +1 more source

Enhanced Electrooxidation of Glycerol to Lactate Over FeOx‐Modified Au Catalysts

Carbon and Hydrogen, EarlyView.
A FeOₓ‐modified Au catalyst on nickel foam, fabricated via facile electrodeposition, achieves high‐current‐density (310 mA cm−2) and selective (78.1%) electrooxidation of glycerol to lactate at room temperature, offering a sustainable route for biodiesel by‐product valorization.
Hongji Liu, Yingjie Hu, Ruoyu Wu, Yang Song, Abdullah N. Alodhayb, Xiaodong Yi, Zhou Chen   +6 more
wiley   +1 more source

Measuring the magnetic fields in the chromospheres of low-mass stars. [PDF]

Nat Commun
Cang T, Petit P, Donati JF, Tian H, Fu J, Li H, Bellotti S, Hu X, Ma X, Lopez Ariste A, Xing K, Morin J, Lu H, Zong W.   +13 more
europepmc   +2 more sources

Accurate geometric albedo, shape, and size of Hi'iaka from a stellar occultation. [PDF]

Nat Commun
Fernández-Valenzuela E, Ortiz JL, Holler BJ, Sicardy B, Rommel FL, Vara-Lubiano M, Morales N, Vachier F, Desmars J, Kretlow M, Vieira-Martins R, Jehin E, Ferrais M, Santos-Sanz P, Rustamkulov Z, de la Vega A, Warner E, Benkhaldoun Z, Kamin R, Ryan A, Earls B, Conti D, de Wit J, Burdanov A, Francini R, Langill P, Morales R, Fraser W, Kiss C, Pál A, Souami D, Lecacheux J, Braga-Ribas F, Duffard R, Alvarez-Candal A, Benedetti-Rossi G, Morgado B, Camargo JIB, Júnior ARG, Assafin M, Aissa DB, Grigahcene Z, Buie MW, Licandro J, Alarcon MR, Serra-Ricart M, Castro-Tirado A, Fernandez-Garcia EJ, Iglesias-Marzoa R, Galindo-Guil FJ, González H, Gonçalves R, Rengstorf A, Flynn R, Olsen A, Hanna B, Barnes J, A'Hearn JA, Kreyche SM, Miller WJ, Mortensen LE, Gibson TC, Walker G, Stolle-McAllister G, Feiden GA, Froetschel J, Steel S, Encardes D, Fisher RS, Luken A, Holcomb E, Caton D, Dunford B, Monin D.   +73 more
europepmc   +1 more source

Experimental methods in chemical engineering: Atomic absorption spectrometry—AAS

The Canadian Journal of Chemical Engineering, EarlyView.
Abstract Elements absorb electromagnetic radiation (light) of a specific wavelength in proportion to the number of atoms in its path. As the atoms absorb this light energy, electrons rise from the ground state to an excited state. In atomic absorption spectrometry (AAS), high temperatures produce clouds of atoms from the sample (atomization) and ...
Emily Cintia Tossi de A. Costa, Jildimara de Jesus Santana, Viviane de Oliveira Campos, Felipe Fernandes Barbosa, Gregory S. Patience   +4 more
wiley   +1 more source