Results 71 to 80 of about 324,804 (215)

Vision at high latitudes: High sensitivity without specific boreal adaptations in photoreception in reindeer (Rangifer tarandus L.)

Functional Ecology, EarlyView.
Read the free Plain Language Summary for this article on the Journal blog. Abstract The light climate at high latitudes, in particular the extended twilight of winter and the reduced diel variation in light level in midsummer and midwinter, potentially constrains visual function and the synchronisation of temporal organisation in polar species. In this
Nicholas J. C. Tyler, Robert A. E. Fosbury, David Hazlerigg, Christopher Hogg   +3 more
wiley   +1 more source

Polarisation properties of Milky-Way-like galaxies [PDF]

, 2012
(Abridged) We study the polarisation properties, magnetic field strength, and synchrotron emission scale-height of Milky-Way-like galaxies in comparison with other spiral galaxies. We use our 3D-emission model of the Milky Way Galaxy for viewing the Milky Way from outside at various inclinations as spiral galaxies are observed.
arxiv   +1 more source

Did the Milky Way dwarf satellites enter the halo as a group? [PDF]

Astrophys.J.697:269-274,2009, 2009
The dwarf satellite galaxies in the Local Group are generally considered to be hosted in dark matter subhalos that survived the disruptive processes during infall onto their host halos. It has recently been argued that if the majority of satellites entered the Milky Way halo in a group rather than individually, this could explain the spatial and ...
arxiv   +1 more source

Tracing the first stars and galaxies of the Milky Way [PDF]

Monthly Notices of the Royal Astronomical Society, 2017
We use 30 high-resolution dark matter halos of the $Caterpillar$ simulation suite to probe the first stars and galaxies of Milky Way-mass systems. We quantify the environment of the high-$z$ progenitors of the Milky Way and connect them to the properties of the host and satellites today.
Alexander P. Ji, Facundo A. Gómez, Brendan F. Griffen, Gregory A. Dooley, Anna Frebel, Brian W. O'Shea, Brian W. O'Shea   +6 more
openaire   +5 more sources

Milky Way Satellite Census. II. Galaxy–Halo Connection Constraints Including the Impact of the Large Magellanic Cloud [PDF]

Astrophysical Journal, 2019
The population of Milky Way (MW) satellites contains the faintest known galaxies and thus provides essential insight into galaxy formation and dark matter microphysics.
E. Nadler, Risa Wechsler, K. Bechtol, Yao-Yuan Mao, Yao-Yuan Mao, G. Green, A. Drlica-Wagner, A. Drlica-Wagner, M. McNanna, S. Mau, A. Pace, A. Pace, J. Simon, A. Kravtsov, S. Dodelson, Tian Li, A. Riley, Mei-Yu Wang, T. Abbott, M. Aguena, S. Allam, J. Annis, S. Ávila, G. Bernstein, E. Bertin, E. Bertin, D. Brooks, D. Burke, A. Rosell, M. Kind, J. Carretero, M. Costanzi, L. Costa, J. Vicente, S. Desai, A. Evrard, B. Flaugher, P. Fosalba, J. Frieman, J. García-Bellido, E. Gaztañaga, D. Gerdes, D. Gruen, J. Gschwend, G. Gutiérrez, W. Hartley, W. Hartley, S. Hinton, K. Honscheid, E. Krause, K. Kuehn, K. Kuehn, N. Kuropatkin, O. Lahav, M. Maia, J. Marshall, F. Menanteau, R. Miquel, A. Palmese, F. Paz-Chinchón, A. Plazas, A. Romer, E. Sánchez, B. Santiago, V. Scarpine, S. Serrano, M. Smith, M. Soares-Santos, E. Suchyta, G. Tarlé, D. Thomas, T. Varga, T. Varga, A. Walker   +73 more
semanticscholar   +1 more source

(2R,6R)‐hydroxynorketamine prevents opioid abstinence‐related negative affect and stress‐induced reinstatement in mice

British Journal of Pharmacology, EarlyView.
Abstract Background and Purpose Opioid use disorder (OUD) is a pressing public health concern marked by frequent relapse during periods of abstinence, perpetuated by negative affective states. Classical antidepressants or the currently prescribed opioid pharmacotherapies have limited efficacy to reverse the negative affect or prevent relapse ...
Andria Michael, Anna Onisiforou, Polymnia Georgiou, Morfeas Koumas, Chris Powels, Elmar Mammadov, Andrea N. Georgiou, Panos Zanos   +7 more
wiley   +1 more source

Biopiracy and beauty brands? patent trends of cosmetics and skin care companies

The Journal of World Intellectual Property, EarlyView.
Abstract Concerns about the fairness and equity of ‘biodiscovery’ research endure despite the creation of legal frameworks designed to regulate access and benefit sharing involving genetic resources and associated traditional knowledge. While some industries that engage in biodiscovery have been the subject of sustained scrutiny, others have received ...
David J. Jefferson, Daniel F. Robinson
wiley   +1 more source

Four-hundred Very Metal-poor Stars Studied with LAMOST and Subaru. III. Dynamically Tagged Groups and Chemodynamical Properties

The Astrophysical Journal
Very metal-poor (VMP) stars record the signatures of early accreted galaxies, making them essential tools for unraveling the early stages of Galaxy formation.
Ruizhi Zhang, Tadafumi Matsuno, Haining Li, Wako Aoki, Xiang-Xiang Xue, Takuma Suda, Gang Zhao, Yuqin Chen, Miho N. Ishigaki, Jianrong Shi, Qianfan Xing, Jingkun Zhao   +11 more
doaj   +1 more source

Deflection of the hypervelocity stars by the dance of the Milky Way and Large Magellanic Cloud [PDF]

arXiv, 2020
Stars slingshotted by the supermassive black hole at the Galactic centre will escape the Milky Way so quickly that their trajectories will be almost straight lines. Previous works have shown how these `hypervelocity stars' are subsequently deflected by the gravitational field of the Milky Way and the Large Magellanic Cloud (LMC), but have neglected to ...
arxiv  

The Milky Way Galaxy as a strong gravitational lens [PDF]

Monthly Notices of the Royal Astronomical Society, 2007
We study the gravitational lensing effects of spiral galaxies by taking a model of the Milky Way and computing its lensing properties. The model is composed of a spherical Hernquist bulge, a Miyamoto-Nagai disc and an isothermal halo. As a strong lens, a spiral galaxy like the Milky Way can give rise to four different imaging geometries.
E. M. Shin, Nick Evans
openaire   +3 more sources