Results 141 to 150 of about 10,031 (296)

A Novel Computation for Dimming Relative to the Adaptation Level in the Frog Retina. [PDF]

eNeuro
Murakami S, Umemoto J, Horiguchi M, Ishikane H.   +3 more
europepmc   +1 more source

Practical Evaluation of Dimming Control Methods for Electronic Ballasts

, 2003
The authors compare and evaluate (i) the traditional frequency-control dimming method and (ii) a recently-patented voltage-control dimming method in electronic ballasts for fluorescent lamps. The power factor, energy efficiency, electronic loss, lux/Watt
Lee, TS, Hui, SYR, Chung, HSH, Tam, PW, Liu, YS   +4 more
core  

Synthesis of Large‐ and Medium‐Sized Heterobiaryl Atropisomeric Rings and Atropopeptides by Catalytic Intramolecular SNAr

Angewandte Chemie, EarlyView.
Catalytic, intramolecular N‐heterocycle arylation by nucleophilic aromatic substitution (SNAr) is now available for synthesis of highly strained macrocycles and medium‐sized heterobiaryl atropisomeric rings, including atropopeptides. Key to the approach is the ability to generate a strong base catalytically, taking advantage of base‐embedding ...
Alireza Abbasi Kejani, Paritosh Dey, Nicholas H. Stillman, Daniel M. Andrade, Michal Šimek, Martin Dračínský, Daniel Bím, Paulo H. S. Paioti   +7 more
wiley   +1 more source

Polar dimming and mid-latitude brightening in a warming climate. [PDF]

Natl Sci Rev
Liu S, Song F, Wang Y, Dong L, Geng YF, Zhang Y.   +5 more
europepmc   +1 more source

Satellite imagery reveals increasing volatility in human night-time activity. [PDF]

Nature
Li T, Wang Z, Kyba CCM, Román MO, Seto KC, Yang Y, Qiu S, Kuester T, Fragkias M, Chen X, Meyer TH, Rittenhouse CD, Tai X, Cullerton M, Hong F, Grinstead A, Song K, Suh JW, Yang X, Kalb VL, Deng C, Zhu Z.   +21 more
europepmc   +1 more source

Revealing Flare Energetics and Dynamics with SDO EVE Solar Extreme Ultraviolet Spectral Irradiance Observations. [PDF]

Sol Phys
Woods TN, Chamberlin PC, Jones A, Mason JP, Qian L, Warren HP, Woodraska D, Borelli R, Eparvier FG, Gonzalez G.   +9 more
europepmc   +1 more source

Tracing the evolutionary history of the morpho‐anatomy of baculum in primates

The Anatomical Record, EarlyView.
Abstract Animal morphology reflects both evolutionary history and present‐day adaptation. Male mammal copulatory structures such as the baculum (penile bone) are ideal for studying these processes because of their complexity and high interspecific variability. In primates, however, research has focused mostly on baculum length.
Federica Spani, Maria Pia Morigi, Matteo Bettuzzi, Monica Carosi   +3 more
wiley   +1 more source

A light-off response characterised by body contraction and ciliary arrest in Acropora coral larvae. [PDF]

J Exp Biol
Brodrick EA, Jokura K, Craggs J, Poon R, Laeverenz-Schlogelhofer H, Wan KY, Jékely G.   +6 more
europepmc   +1 more source

The lower deciduous dentition of protodidelphids (Mammalia, Marsupialia) from the Itaboraí Basin (lower Eocene), Brazil, and the validity of “Riolestes capricornicus” (Goin et al., 2009)

The Anatomical Record, EarlyView.
Abstract The Itaboraí Basin, Southeastern Brazil, preserved one of the most diverse mammalian faunas from the Paleogene, with Metatheria comprising more than 60% of its diversity. Among identified metatherian clades, it has been argued that Paucituberculata is represented by “Riolestes capricornicus”.
Leonardo M. Carneiro, Hugo Bampi, João P. P. Araújo, Marina B. Soares, Gustavo R. Oliveira   +4 more
wiley   +1 more source

Visual learning at fast and slow timescales is driven by distinct plasticity rules in primate inferotemporal cortex. [PDF]

Nat Commun
Mohan K, Pereira-Obilinovic U, Srednyak S, Brunel N, Freedman DJ.   +4 more
europepmc   +1 more source