Zobrazeno 1 - 10
of 4 440
pro vyhledávání: '"Bara, P"'
Autor:
Bará, Salvador
Monitoring the evolution of the anthropogenic light emissions is a priority task in light pollution research. Among the complementary approaches that can be adopted to achieve this goal stand out those based on measuring the direct radiance of the so
Externí odkaz:
http://arxiv.org/abs/2405.08279
Autor:
Kasalkovova, Nikola Slepickova, Juricova, Veronika, Fajstavr, Dominik, Frydlova, Bara, Rimpelova, Silvie, Svorcik, Vaclav, Slepicka, Petr
We focused on polydimethylsiloxane (PDMS) as a substrate for replication, micropatterning, and construction of biologically active surfaces. The novelty of this study is based on the combina-tion of argon plasma exposure of micropatterned PDMS scaffo
Externí odkaz:
http://arxiv.org/abs/2402.16931
Autor:
Kasalkova, Nikola Slepickova, Juricova, Veronika, Rimpelova, Silvie, Fajstavr, Dominik, Frydlova, Bara, Kolska, Zdenka, Svorcik, Vaclav, Slepicka, Petr
The presented study highlights the efficiency of employing a KrF excimer laser to create diverse types of periodic nanostructures (LIPSS - laser induced periodic surface structures) on polyether ether ketone (PEEK) and polyethylene naphthalate (PEN)
Externí odkaz:
http://arxiv.org/abs/2401.00328
Autor:
Bará, Salvador, Falchi, Fabio
Publikováno v:
Bar\'a S, Falchi F. 2023. Artificial light at night: a global disruptor of the night-time environment. Phil. Trans. R. Soc. B 378: 20220352
Light pollution is the alteration of the natural levels of darkness by an increased concentration of light particles in the nighttime environment, resulting from human activity. Light pollution is changing in a deep way the environmental conditions o
Externí odkaz:
http://arxiv.org/abs/2311.02098
Autor:
Ohayon, Ben, Abeln, Andreas, Bara, Silvia, Cocolios, Thomas Elias, Eizenberg, Ofir, Fleischmann, Andreas, Gastaldo, Loredana, Godinho, César, Heines, Michael, Hengstler, Daniel, Hupin, Guillaume, Indelicato, Paul, Kirch, Klaus, Knecht, Andreas, Kreuzberger, Daniel, Machado, Jorge, Navratil, Petr, Paul, Nancy, Pohl, Randolf, Unger, Daniel, Vogiatzi, Stella, von Schoeler, Katharina, Wauters, Frederik
Publikováno v:
Physics 2024, 6(1), 206-215
We propose an experiment to measure the nuclear charge radii of light elements with up to 20~times higher accuracy. These are essential both for understanding nuclear physics at low energies, and for experimental and theoretical applications in simpl
Externí odkaz:
http://arxiv.org/abs/2310.03846
Autor:
Bará, Salvador, Lima, Raul C.
Wind farm lights are a conspicuous feature in the nocturnal landscape. Their presence is a source of light pollution for residents and the environment, severely disrupting in some places the aesthetic, cultural, and scientific values of the pristine
Externí odkaz:
http://arxiv.org/abs/2310.05981
Publikováno v:
Journal of Quantitative Spectroscopy and Radiative Transfer, Volume 298, 2023, 108503
The horizontal irradiance at the sea surface is an informative light pollution indicator to study Artificial Light at Night (ALAN) effects on marine biodiversity (e.g.: zooplankton diel vertical migration). The Posch ratio (PR) for the horizontal irr
Externí odkaz:
http://arxiv.org/abs/2308.02986
Concepts of Granger causality (GC) and Granger autonomy (GA) are central to assess the dynamics of coupled physiologic processes. While causality measures have been already proposed and applied in time and frequency domains, measures quantifying self
Externí odkaz:
http://arxiv.org/abs/2307.09551
Publikováno v:
Nature Astronomy 7, 237, (2023)
Unfettered access to dark night skies is rapidly diminishing, due to light pollution and satellite mega-constellations tracks. Scientists should wake up and do more to stand up to Big Light and Big Space and preserve this natural resource.
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Externí odkaz:
http://arxiv.org/abs/2307.00598
Autor:
Falchi, Fabio, Bará, Salvador
Publikováno v:
Science 379, 234, (2023)
Artificial light at night is a pollutant that is rising fast, as demonstrated by Kyba et al. (1) work by analyzing ten of thousands observations by citizen scientists in the last 12 years. The study found that the dimmest stars are vanishing, progres
Externí odkaz:
http://arxiv.org/abs/2306.13878