Results 21 to 30 of about 8,783 (200)

The Skin Microbiome: Current Techniques, Challenges, and Future Directions

open access: yesMicroorganisms, 2023
Skin acts as a barrier that promotes the colonization of bacteria, fungi, archaea, and viruses whose membership and function may differ depending on the various specialized niches or micro-environments of the skin.
Tasha M. Santiago-Rodriguez   +4 more
doaj   +1 more source

Landscape factors influencing roost site selection by monarch butterflies Danaus plexippus during fall migration in Ontario, Canada

open access: yesEndangered Species Research, 2023
Worldwide, insect populations are declining, and the eastern migratory group of the monarch butterfly Danaus plexippus in North America has not escaped this fate. The conservation of this iconic species is an international priority but requires knowledge
VK Fyson   +4 more
doaj   +1 more source

Hibernacula microclimate and declines in overwintering bats during an outbreak of white‐nose syndrome near the northern range limit of infection in North America

open access: yesEcology and Evolution, 2021
We document white‐nose syndrome (WNS), a lethal disease of bats caused by the fungus Pseudogymnoascus destructans (Pd), and hibernacula microclimate in New Brunswick, Canada. Our study area represents a more northern region than is common for hibernacula
Karen J. Vanderwolf, Donald F. McAlpine
doaj   +1 more source

Early phase observations of extremely luminous Type Ia Supernova 2009dc [PDF]

open access: yes, 2009
We present early phase observations in optical and near-infrared wavelengths for the extremely luminous Type Ia supernova (SN Ia) 2009dc. The decline rate of the light curve is $\Delta m_{15}(B)=0.65\pm 0.03$, which is one of the slowest among SNe Ia ...
A. Arai   +55 more
core   +2 more sources

Optical polarisation variability of radio loud narrow line Seyfert 1 galaxies. Search for long rotations of the polarisation plane [PDF]

open access: yes, 2018
Narrow line Seyfert 1 galaxies (NLSy1s) constitute the AGN subclass associated with systematically smaller black hole masses. A few radio loud ones have been detected in MeV -- GeV energy bands by Fermi and evidence for the presence of blazar-like jets ...
Angelakis, E.   +7 more
core   +4 more sources

Photopolarimetric Monitoring of Blazars in the Optical and Near-Infrared Bands with the Kanata Telescope. I. Correlations between Flux, Color, and Polarization [PDF]

open access: yes, 2011
We report on the correlation between the flux, color and polarization variations on time scales of days--months in blazars, and discuss their universal aspects.
Y. Ikejiri   +12 more
semanticscholar   +1 more source

Optical and Near-Infrared Monitoring of Gamma-ray Binaries Hosting Be Stars

open access: yesUniverse, 2021
Optical and near-infrared observations are compiled for the three gamma-ray binaries hosting Be stars: PSR B1259−63, LSI+61 303, and HESS J0632+057. The emissions from the Be disk are considered to vary according to the changes in its structure, some of ...
Yuki Moritani, Akiko Kawachi
doaj   +1 more source

Ultra-High Resolution Wideband on-Chip Spectrometer

open access: yesIEEE Photonics Journal, 2020
Monitoring the state of the optical network is a key enabler for programmability of network functions, protocols and efficient use of the spectrum. A particular challenge is to provide the SDN-EON controller with a panoramic view of the complete state of
Mehedi Hasan   +6 more
doaj   +1 more source

A pedagogia de projetos desenvolvida em Manaus: um estudo de caso na Escola Indígena Kanata T-ykua

open access: yesRevista Amazônida Revista do Programa de Pós-Graduação em Educação da Universidade Federal do Amazonas, 2019
O presente artigo apresenta resultados do projeto de pesquisa “A Pedagogia de Projetos desenvolvida em Manaus: Um estudo de caso na Escola Indígena Kanata T-Ykua”, desenvolvido dentro das ações do Programa Institucional de Bolsas de Iniciação Científica (
Helenice Aparecida Ricardo   +1 more
semanticscholar   +1 more source

Multifrequency Photo-polarimetric WEBT Observation Campaign on the Blazar S5 0716+714: Source Microvariability and Search for Characteristic Timescales [PDF]

open access: yes, 2016
Here we report on the results of the WEBT photo-polarimetric campaign targeting the blazar S5~0716+71, organized in March 2014 to monitor the source simultaneously in BVRI and near IR filters.
Akitaya, H.   +45 more
core   +2 more sources

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