Results 71 to 80 of about 948,700 (330)

The local conservation status of the regionally rarest bird species in the state of Rio de Janeiro, southeastern Brazil

Journal of Threatened Taxa, 2015
We reviewed the local current status and summarized the suspected causes of rarity, and presumed major threats to the 84 rarest bird speciesin the state of Rio de Janeiro, southeastern Brazil.
Francisco Mallet-Rodrigues, José Fernando Pacheco   +1 more
doaj   +1 more source

Extinction curve template for intrinsically reddened quasars

, 2015
We analyze the near-infrared to UV data of 16 quasars with redshifts ranging from 0.71 $
Fynbo, Johan P. U., Geier, Stefan, Krogager, Jens-Kristian, Møller, Palle, Saturni, Francesco G., Venemans, Bram P., Watson, Darach, Zafar, Nosheen, Zafar, Tayyaba   +8 more
core   +1 more source

Optimal extinction measurements [PDF]

Astronomy & Astrophysics, 2018
In this paper we present XNICER, an optimized multi-band extinction technique based on the extreme deconvolution of the intrinsic colors of objects observed through a molecular cloud. XNICER follows a rigorous statistical approach and provides the full Bayesian inference of the extinction for each observed object.
openaire   +2 more sources

Advanced Flame Retardant Strategies and Fire Performance Assessment for Safer Photovoltaics in Buildings: A Two‐Part Review

Advanced Functional Materials, EarlyView.
The integration of photovoltaic (PV) systems into building structures introduces distinct fire risks with critical implications for occupant safety. This review examines the key fire hazards associated with PV implementation and explores mitigation strategies, including flame‐retardant additives.
Florian Ollagnon, Olaia Aurrekoetxea‐Arratibel, Emma Gottis, Heng‐Yu Li, Xabier Olano‐Azkune, Matthieu Despeisse, Antonin Faes, Christophe Ballif   +7 more
wiley   +1 more source

Re-evaluating the general dynamic theory of oceanic island biogeography

Frontiers of Biogeography, 2013
The general dynamic model of oceanic island biogeography integrates temporal changes in ecological circumstances with diversification processes, and has stimulated current research in island biogeography.
Manuel Jonas Steinbauer, Klara Dolos, Richard Field, Björn Reineking, Carl Beierkuhnlein   +4 more
doaj  

Mathematical Modelling and Analysis of Stochastic COVID-19 and Hepatitis B Co-Infection Dynamics

COVID
The recent resurgence of COVID-19 in a Hepatitis B virus some endemic countries could lead to adverse outcomes. In this article, we formulate and analyse a mathematical model to explains the co-infection dynamics of Hepatitis B virus and COVID-19.
Michael Asamani Pobbi, Samuel Mindakifoe Naandam, Stephen Edward Moore   +2 more
doaj   +1 more source

Biodiversity, Extinction, and Humanity’s Future: The Ecological and Evolutionary Consequences of Human Population and Resource Use

Humanities, 2013
Human actions have altered global environments and reduced biodiversity by causing extinctions and reducing the population sizes of surviving species. Increasing human population size and per capita resource use will continue to have direct and indirect ...
Patrick L. Hindmarsh, Robert J. Fournier, Jeffrey V. Yule   +2 more
doaj   +1 more source

UV Extinction Towards a Quiescent Molecular Cloud in the SMC

, 2012
Context: The mean UV extinction law for the Small Magellanic Cloud (SMC) is usually taken as a template for low-metallicity galaxies. However, its current derivation is based on only five stars, thus placing doubts on its universality. An increase in the
Arias, Baade, Cardelli, Clayton, Fitzpatrick, Fitzpatrick, Fitzpatrick, Gordon, Gordon, J. Maíz Apellániz, Knigge, Lanz, Lanz, M. Rubio, Massa, Massey, Maíz Apellániz, Maíz Apellániz, Maíz Apellániz, Ochsenbein, Prévot, Rubio, Schlegel, Sofia, Zagury, Zaritsky   +25 more
core   +1 more source

Low-extinction windows in the inner Galactic Bulge [PDF]

, 2001
We built K band extinction maps in the area of two candidate low-extinction windows in the inner Bulge: W0.2-2.1 at (l,b) = (0.25o,-2.15o), and W359.4-3.1 at (l,b) = (359.40o,-3.10o).
Aguerri, Alard, Alcock, Arce, B. X. Santiago, C. M. Dutra, Cardelli, Dutra, E. Bica, Epchtein, Feitzinger, Frogel, Glass, Gould, Hammersley, Kenyon, Lloyd Evans, Lynds, Mathis, Persson, Ramírez, Schlegel, Schulteis, Skrutskie, Stanek, Terndrup, Tiede, Unavane, Vrba, Whitford, Whittet, Wyse   +31 more
core   +2 more sources

Defect Analysis of the β– to γ–Ga2O3 Phase Transition

Advanced Functional Materials, EarlyView.
The role of defects at all the relevant stages of the β$\beta$‐ to γ$\gamma$‐Ga2O3 polymorph transition is investigated using a multi method approach. The positron annihilation spectroscopy based results show that the defect density decreases after the transition, and that changes in defect configuration within the γ phase occur with increasing ...
Umutcan Bektas, Maciej O. Liedke, Huan Liu, Fabian Ganss, Maik Butterling, Nico Klingner, René Hübner, Ilja Makkonen, Andreas Wagner, Gregor Hlawacek   +9 more
wiley   +1 more source