Results 91 to 100 of about 1,122,223 (383)

The Near-Infrared Extinction Law in Regions of High Av

open access: yes, 2005
We present a spectroscopic study of the shape of the dust-extinction law between 1.0 and 2.2um towards a set of nine ultracompact HII regions with Av > 15 mag.
Lumsden, S. L.   +3 more
core   +1 more source

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

open access: yes, 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   +31 more
core   +2 more sources

Assessing the environmental impacts of wildlife television programmes

open access: yesPeople and Nature, 2021
Wildlife TV programmes reach very large global audiences, but it is hard to measure their benefits for the natural world. The commercial need to entertain as well as inform means that many films omit the presence and impacts of people, giving the false ...
John Aitchison   +2 more
doaj   +1 more source

Time-resolved extinction rates of stochastic populations

open access: yes, 2010
Extinction of a long-lived isolated stochastic population can be described as an exponentially slow decay of quasi-stationary probability distribution of the population size.
B. Meerson   +5 more
core   +1 more source

Advancing Wildfire‐Retardant Materials: Engineering Strategies for Direct and Indirect Suppression

open access: yesAdvanced Engineering Materials, EarlyView.
Here, the evolution, ecological impact, and performance of current fire‐retardant materials and suppression strategies are reviewed, offering an engineering perspective to address existing challenges and propose pathways for the development of more effective, scalable, and sustainable solutions to meet the demands of a changing climate. Wildfires cause
Changxin Dong   +4 more
wiley   +1 more source

Serbian ritual lyrics of the spring and summer cycle [PDF]

open access: yesBaština, 2012
Serbian ritual poetry is very old. There are some legacies from Middle Age. It is the most numerous subject of calendar cycles because of spring and summer rituals which are usually followed by singing.
Lazarević Velibor
doaj  

THE MEMORY SYSTEM ENGAGED DURING ACQUISITION DETERMINES THE EFFECTIVENESS OF DIFFERENT EXTINCTION PROTOCOLS

open access: yesFrontiers in Behavioral Neuroscience, 2015
Previous research indicates that extinction of rodent maze behavior may occur without explicit performance of the previously required response. In latent extinction, confining an animal to a previously rewarded goal location without reinforcement is ...
Jarid eGoodman, Mark ePackard
doaj   +1 more source

Distinct hippocampal engrams control extinction and relapse of fear memory

open access: yesNature Neuroscience, 2019
Learned fear often relapses after extinction, suggesting that extinction training generates a new memory that coexists with the original fear memory; however, the mechanisms governing the expression of competing fear and extinction memories remain ...
A. Lacagnina   +9 more
semanticscholar   +1 more source

Efficient and Scalable Radiative Cooling for Photovoltaics Using Solution‐Processable and Solar‐Transparent Mesoporous Nanoparticles

open access: yesAdvanced Functional Materials, EarlyView.
Graded refractive index (GRI) structures are prepared from the layer‐by‐layer spray coating of the mesoporous SiO2 nanoparticles, showing high solar transparency and thermal emissivity. Under outdoor conditions, after 50 days, the GRI‐coated photovoltaics show on average 6.65 ± 1.48 °C lower than that of the non‐coated references, maintaining 80.9 ± 8 ...
Heesuk Jung   +14 more
wiley   +1 more source

The Route to Artery Mimetics: Hybrid Bioinks for Embedded Bioprinting of Multimaterial Cylindrical Models

open access: yesAdvanced Functional Materials, EarlyView.
The fabrication of a cellularized, multilayered 3D printed cylindrical model comprising hybrid bioinks inspired by the natural extracellular environment as an approach to artery mimetics, is presented. Using embedded bioprinting, interlayer crosslinking of self‐supporting concentric cylinders is achieved.
Uxue Aizarna‐Lopetegui   +7 more
wiley   +1 more source

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