Results 51 to 60 of about 948,700 (330)

Understanding and Optimizing Li Substitution in P2‐Type Sodium Layered Oxides for Sodium‐Ion Batteries

Advanced Functional Materials, EarlyView.
This work explores Li‐substituted P2 layered oxides for Na‐ion batteries by crystallographic and electrochemical studies. The effect of lithium on superstructure orderings, on phase transitions during synthesis and electrochemical cycling and on the interplay of O‐ versus TM‐redox is revealed via various advanced techniques, including semi‐simultaneous 
Mingfeng Xu, Giovanni Gammaitoni, Michael Häfner, Eduardo Villalobos‐Portillo, Carlo Marini, Matteo Bianchini   +5 more
wiley   +1 more source

Numerical model for estimating contribution of different components of crystalline cloud to extinction of optical radiation. Part 1. Scheme of qualitative estimation

Известия Томского политехнического университета: Промышленная кибернетика
An analytical expression for extinction coefficient of optical radiation is proposed, taking into account various microphysical parameters of dispersed medium. The formula is product of the extinction factor and modified geometric value.
Olga V. Shefer, Victor A. Sennikov, Andrey A. Aleinik   +2 more
doaj   +1 more source

Activation of dopamine receptors in the nucleus accumbens promotes sucrose-reinforced cued approach behavior

Frontiers in Behavioral Neuroscience, 2016
Dopamine receptor activation in the nucleus accumbens (NAc) promotes vigorous environmentally-cued food-seeking in hungry rats. Rats fed ad libitum, however, respond to fewer food-predictive cues, particularly when the value of food reward is low.
Saleem M. Nicola, Saleem M. Nicola, Johann du Hoffmann, Johann du Hoffmann   +3 more
doaj   +1 more source

The mid-infrared extinction law in the darkest cores of the Pipe Nebula

, 2012
Context. The properties of dust grains, in particular their size distribution, are expected to differ from the interstellar medium to the high-density regions within molecular clouds. Aims.
Alves, J., Ascenso, J., Lada, C. J., Lombardi, M., Román-Zúñiga, C. G.   +4 more
core   +1 more source

Intramolecular Down‐ and Up‐Conversion in Dimeric Tetracene Complexes Centered via Platinum(II) and Palladium(II)

Advanced Functional Materials, EarlyView.
Metal‐tetracene dimeric complexes are synthesized through the pyridyl coordination to either Pt(II) or Pd(II). Photophysical properties are systematically compared as a function of the metal using steady‐state and time‐resolved spectroscopy. The Pt(II) dimer exhibits efficient intramolecular singlet fission and subsequent intramolecular up‐conversion ...
Yifan Bo, Yuxuan Hou, Melchor Matabuena, Rik R. Tykwinski, Dirk M. Guldi   +4 more
wiley   +1 more source

Tiny habitats of tiny species: the importance of micro-refugia for threatened island-endemic arthropods

Oryx
Island-endemic arthropods are understudied species and likely to be highly threatened with extinction. Analysis of IUCN Red List assessments can be used to highlight important microhabitats requiring conservation for the effective management of island ...
Adam Sharp, Alan Gray
doaj   +1 more source

Mapping the Milky Way bulge at high resolution: the 3D dust extinction, CO, and X factor maps

, 2014
Three dimensional interstellar extinction maps provide a powerful tool for stellar population analysis. We use data from the VISTA Variables in the Via Lactea survey together with the Besan\c{c}on stellar population synthesis model of the Galaxy to ...
Chen, B. Q., Enokiya, R., Fukui, Y., Gonzalez, O. A., Jiang, B. W., Minniti, D., Rejkuba, M., Schultheis, M., Torii, K.   +8 more
core   +1 more source

The Extinction Towards the GRB970228 Field [PDF]

, 1998
We determine the local galactic extinction towards the field of gamma-ray burst GRB970228 using a variety of methods. We develop a maximum likelihood method for measuring the extinction by comparing galaxy counts in the field of interest to those in a ...
Brainerd T. G., Cardelli J. A., Donald Q. Lamb, Francisco J. Castander, Kirpatrick J. D., Landolt A. U., Pedichini F., Rowan-Robinson M., Vieira E. F.   +8 more
core   +2 more sources

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Optogenetic stimulation of the locus coeruleus enhances appetitive extinction in rats

eLife
Extinction is a specific example of learning where a previously reinforced stimulus or response is no longer reinforced, and the previously learned behaviour is no longer necessary and must be modified.
Simon Lui, Ashleigh K Brink, Laura H Corbit   +2 more
doaj   +1 more source