Results 31 to 40 of about 74,181 (184)

Reconstructing Lost Instruments: Praetorius’s Syntagma musicum and the Violin Family c. 1619

open access: yesDe Musica Disserenda, 2019
Michael Praetorius’s De organographia and Theatrum instrumentorum provide valuable clues that contribute to a new understanding of the violin family c.
Matthew Zeller
doaj   +1 more source

Revisiting the Spectral Energy Correlations of GRBs with Fermi Data. I. Model-wise Properties

open access: yesThe Astrophysical Journal Supplement Series, 2023
Gamma-ray bursts (GRBs) exhibit a diversity of spectra. Several spectral models (e.g., Band, cutoff power law (CPL), and blackbody) and their hybrid versions (e.g., Band+blackbody) have been widely used to fit the observed GRB spectra.
Liang Li
doaj   +1 more source

A Generalized Uncertainty Principle in Quantum Gravity

open access: yes, 1993
We discuss a Gedanken experiment for the measurement of the area of the apparent horizon of a black hole in quantum gravity. Using rather general and model-independent considerations we find a generalized uncertainty principle which agrees with a similar
Amati   +17 more
core   +1 more source

Are GRB 980425 and GRB 031203 real outliers or twins of GRB 060218? [PDF]

open access: yes, 2006
GRB 980425 and GRB 031203 are apparently two outliers with respect to the correlation between the isotropic equivalent energy E_iso emitted in the prompt radiation phase and the peak frequency E_peak of the spectrum in a vF(v) representation (the so ...
Bosnjak, Z.   +5 more
core   +3 more sources

Variation of the Amati Relation with the Cosmological Redshift: a Selection Effect or an Evolution Effect?

open access: yes, 2007
Because of the limit in the number of gamma-ray bursts (GRBs) with available redshifts and spectra, all current investigations on the correlation among GRB variables use burst samples with redshifts that span a very large range.
Li, Li-Xin
core   +1 more source

Broad band time-resolved E_{p,i}--L_{iso} correlation in GRBs [PDF]

open access: yes, 2012
We report results of a systematic study of the broad band (2--2000 keV) time resolved prompt emission spectra of a sample of gamma-ray bursts (GRBs) detected with both Wide Field Cameras on board the \sax\ satellite and the \batse\ experiment on board ...
C. Guidorzi   +5 more
core   +2 more sources

Secularism, Gender and Masculinity in Nineteenth‐Century Cremation in Europe and the USA

open access: yesGender &History, EarlyView.
ABSTRACT This essay explores, from transnational perspectives, the early history of modern cremation, which developed in the long nineteenth century with secularist connotations. I argue that the beginnings of modern cremation were shaped by bourgeois men who claimed certain identifiers for themselves in a gendering and Othering way.
Carolin Kosuch
wiley   +1 more source

Detection of gamma-ray burst Amati relation based on Hubble data set and Pantheon+ samples

open access: yesEuropean Physical Journal C: Particles and Fields
Using gamma-ray bursts as standard candles for cosmological parameter constraints rely on their empirical luminosity relations and low-redshift calibration.
Yufen Han, Jiaze Gao, Gang Liu, Lixin Xu
doaj   +1 more source

The Difference between the Amati and Ghirlanda Relations [PDF]

open access: yesThe Astrophysical Journal, 2005
accepted by ApJ Letters, post refereed version, an appendix has been ...
Levinson, Amir, Eichler, David
openaire   +2 more sources

MYC and therapy resistance in cancer: risks and opportunities

open access: yesMolecular Oncology, 2022
The MYC transcription factor, encoded by the c‐MYC proto‐oncogene, is activated by growth‐promoting signals, and is a key regulator of biosynthetic and metabolic pathways driving cell growth and proliferation.
Giulio Donati, Bruno Amati
doaj   +1 more source

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