Results 41 to 50 of about 34,380 (305)

Case Report: Investigation of the Time Evolution of Optical Breakdown Plasma During Irradiation of Aqueous Solutions of Fe Nanoparticles

Frontiers in Physics, 2021
The time sweeps of images of optical breakdown plasma flashes under irradiation of aqueous solutions of Fe nanoparticles with Nd: YAG laser radiation (λ = 1,064 nm, τ = 10 ns, ν = 10 kHz, ε = 2 mJ) are studied. It is shown that the sizes of plasma flares,
Ilya V. Baimler, Viktor K. Chevokin, Vitaliy A. Podvyaznikov, Sergey V. Gudkov   +3 more
doaj   +1 more source

A Comprehensive Study of Gamma-Ray Burst Optical Emission: I. Flares and Early Shallow Decay Component

, 2012
Well-sampled optical lightcurves of 146 gamma-ray bursts (GRBs) are compiled from the literature. By empirical fitting we identify eight possible emission components and summarize the results in a "synthetic" lightcurve.
Barthelmy, Barthelmy, Bellm, Berger, Bing Zhang, Blandford, Butler, Butler, Butler, Chen, Chincarini, Cucchiara, Dai, Dainotti, Di Matteo, Donaghy, Drenkhahn, En-Wei Liang, Fan, Fenimore, Firmani, Fynbo, Gehrels, Ghirlanda, Giuliani, Golenetskii, Golenetskii, Golenetskii, Greiner, Grupe, Gu, He Gao, Hou-Jun Lü, Huang, Jaunsen, Jian-Yan Wei, Jie-Min Chen, Jin Zhang, Kann, Kann, Kann, Kann, Kobayashi, Kohri, Kohri, Krimm, Krimm, Krühler, Lian-Zhong Lü, Liang, Liang, Liang, Liang, Liang Li, Liu, Liu, Lü, Lü, Maxham, McBreen, Mészáros, Narayan, Nousek, O'Brien, Palmer, Panaitescu, Panaitescu, Panaitescu, Perley, Perna, Popham, Price, Prochaska, Qing-Wen Tang, Rees, Robertson, Rui-Jing Lu, Sagar, Sakamoto, Sakamoto, Sari, Sari, Schady, Schlegel, Shao-Qiang Xi, Shuang-Xi Yi, Soderberg, Thompson, Thompson, Troja, Uhm, Ukwatta, Urata, Yost, Yuan, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang, Zhang   +103 more
core   +1 more source

High Energy Neutrino Flashes from Far-Ultraviolet and X-ray Flares in Gamma-Ray Bursts [PDF]

, 2006
The recent observations of bright optical and x-ray flares by the Swift satellite suggest these are produced by the late activities of the central engine.
C. D. Dermer, K. Asano, Kohta Murase, P. Romano, P. K. F. Grieder, Shigehiro Nagataki, Y. Z. Fan, Z. G. Dai   +7 more
core   +2 more sources

Simultaneous UBVRI observations of the cataclysmic variable AE Aquarii: temperature and mass of fireballs

, 2012
We report simultaneous multicolour observations in 5 bands (UBVRI) of the flickering variability of the cataclysmic variable AE Aqr. Our aim is to estimate the parameters (colours, temperature, size) of the fireballs that produce the optical flares ...
Bastian, Beskrovnaya, Bessell, Bookbinder, Bowden, Bruch, Bruch, Cardelli, Casares, Chincarini, Choi, de Jager, Echevarría, Formiggini, Friedjung, Henize, Iijima, Ikhsanov, Jameson, La Dous, Mauche, Meintjes, Mikolajewska, Oruru, Osborne, Patterson, Pearson, Pearson, Schenker, Skidmore, Sokoloski, Suh, Tomov, van Leeuwen, van Paradijs, Welsh, Wheatley, Wynn, Zamanov, Zinner   +39 more
core   +1 more source

Effect of Foot Orthoses on Midfoot Pain and the Volume of Bone Marrow Lesions in the Midfoot: A Randomized Mechanism of Action Study

Arthritis Care &Research, EarlyView.
Objective Foot orthoses are thought to improve pain by potentially modifying internal mechanical forces. To test this, we explored whether foot orthoses can modify patterns of bone marrow lesions (BMLs) in people with midfoot pain. Methods Forty‐two people were recruited with midfoot pain, and magnetic resonance imaging–confirmed midfoot BMLs ...
Jill Halstead, Anne‐Maree Keenan, Philip G. Conaghan, Dennis McGonagle, Anthony C. Redmond   +4 more
wiley   +1 more source

Temporal Trends in and Associations With Nonsteroidal Anti‐inflammatory Drug Prescription in Adult and Pediatric Patients With Inflammatory Bowel Disease

Arthritis Care &Research, EarlyView.
Objective Recent inflammatory bowel disease (IBD) treatment guidelines have recommended against nonsteroidal anti‐inflammatory drug (NSAID) use despite prevalent musculoskeletal symptoms and opioid overuse in this population. Given the discordance between changing national guidelines and potential clinical utility, we sought to assess national temporal
Adam S. Mayer, Rui Xiao, Andrew Grossman, Meenakshi Bewtra, Michael D. George, Pamela F. Weiss   +5 more
wiley   +1 more source

Multi-Frequency Monitoring of the Flat Spectrum Radio Quasar PKS 1222+216 in 2008–2015

Galaxies, 2016
We analyze the broadband activity of the flat spectrum radio quasar PKS 1222+216 from 2008 to 2015 using multi-frequency monitoring which involves γ-ray data from the Fermi Large Area Telescope, total intensity and linear polarization observations from ...
Ivan Troitskiy, Daria Morozova, Svetlana Jorstad, Valery Larionov, Alan Marscher, Ivan Agudo, Dmitry Blinov, Paul Smith, Yuliya Troitskaya   +8 more
doaj   +1 more source

Quasi-simultaneous Optical Flux and Polarization Variability of the Binary Super Massive Black Hole Blazar OJ 287 from 2015 to 2023: Detection of an Anticorrelation in Flux and Polarization Variability

The Astrophysical Journal Letters, 2023
We study the optical flux and polarization variability of the binary black hole blazar OJ 287 using quasi-simultaneous observations from 2015 to 2023 carried out using telescopes in the USA, Japan, Russia, Crimea, and Bulgaria.
Alok C. Gupta, Pankaj Kushwaha, Mauri J. Valtonen, Sergey S. Savchenko, Svetlana G. Jorstad, Ryo Imazawa, Paul J. Wiita, Minfeng Gu, Alan P. Marscher, Zhongli Zhang, Rumen Bachev, G. A. Borman, Haritma Gaur, T. S. Grishina, V. A. Hagen-Thorn, E. N. Kopatskaya, V. M. Larionov, E. G. Larionova, L. V. Larionova, D. A. Morozova, T. Nakaoka, A. Strigachev, Yulia V. Troitskaya, I. S. Troitsky, M. Uemura, A. A. Vasilyev, Z. R. Weaver, A. V. Zhovtan   +27 more
doaj   +1 more source

Impact flare in exosystems: optical manifestation

ASTRONOMY AT THE EPOCH OF MULTIMESSENGER STUDIES. Proceedings of the VAK-2021 conference, Aug 23–28, 2021, 2022
A general discrepancy of statistics observed for known population of exosystems (exoplanets, exocomets and exosateroids)is noted. The most populated exosystem objects (i.e. exoasteroids) demonstrate the most poorly optic/IR manifestation. Sofar, only 2 events observed in IR are interpreted as an exoasteroid manifestation.
openaire   +1 more source

Spatially Tailorable Liquid Crystalline Elastomer Alignment During Digital Light Process 3D Printing

Advanced Functional Materials, EarlyView.
Here, we report the fabrication of 3D printable liquid crystalline elastomer (LCE) structures with spatially tailorable alignment domains within the same layer. This work addresses the long‐standing challenge of preparing complex 3D LCE architectures with patterned functional domains to achieve nonlinear deformations. Fabrication of multi‐domains in 3D
Adam Bischoff, Saman Jamshididana, Zach Miller, Kassandra Hernandez, Nicolas Gonsalves, Andre Olarra, Elliot Yoo, Jeremy A. Herman, Devin J. Roach   +8 more
wiley   +1 more source