Results 11 to 20 of about 2,836,187 (243)

Constraining Cosmic Evolution of Type Ia Supernovae [PDF]

open access: yes, 2007
We present the first large-scale effort of creating composite spectra of high-redshift type Ia supernovae (SNe Ia) and comparing them to low-redshift counterparts.
A. C. Becker   +33 more
core   +7 more sources

Energy spectra of X-ray quasi-periodic oscillations in accreting black hole binaries [PDF]

open access: yes, 2006
We investigate the energy dependencies of X-ray quasi-periodic oscillations in black hole X-ray binaries. We analyze RXTE data on both the low- and high-frequency QPO.
A. Niedźwiecki   +3 more
core   +3 more sources

Generic Birkhoff Spectra [PDF]

open access: yes, 2019
Suppose that $\Omega = \{0, 1\}^ {\mathbb {N}}$ and $ {\sigma}$ is the one-sided shift. The Birkhoff spectrum $ \displaystyle S_{f}( {\alpha})=\dim_{H}\Big \{ {\omega}\in {\Omega}:\lim_{N \to \infty} \frac{1}{N} \sum_{n=1}^N f(\sigma^n \omega) = \alpha ...
Buczolich, Zoltán   +2 more
core   +2 more sources

Concurrent occurrence of a wandering spleen, organoaxial gastric volvulus, pancreatic volvulus, and cholestasis – A rare cause of an acute abdomen

open access: yesRadiology Case Reports, 2019
The concurrence of wandering spleen, organoaxial gastric volvulus, and pancreatic volvulus is very rare. They have been associated with symptoms such as severe abdominal pain, abdominal distention, and vomiting. However, the diagnosis remains complicated
George Asafu Adjaye Frimpong, MD   +9 more
doaj   +1 more source

Short‐duration post CT‐guided thoracic biopsy monitoring‐ clinical experience with 440 patients

open access: yesJournal of Medical Radiation Sciences, 2019
Purpose With several studies recording a higher percentage of complications in the first hour of post‐biopsy, this study sought to evaluate the safety in the reduction in post‐biopsy patient monitoring time after computed tomography (CT)‐guided thoracic ...
George Asafu Adjaye Frimpong   +4 more
doaj   +1 more source

Bilateral emphysematous pyelonephritis cured by antibiotics alone in a black African woman

open access: yesRadiology Case Reports, 2018
A 78-year-old black woman with a 10-year history of diabetes mellitus was admitted to the intensive care unit. Upon admission, she presented with chills, nausea, and left flank pain.
G. Asafu Adjaye Frimpong   +4 more
doaj   +1 more source

Alternative Supersymmetric Spectra [PDF]

open access: yes, 2000
We describe the features of supersymmetric spectra, alternative to and qualitatively different from that of most versions of the MSSM. The spectra are motivated by extensions of the MSSM with an extra U(1)' gauge symmetry, expected in many grand unified ...
Cleaver   +11 more
core   +2 more sources

Programmable burst-mode laser system delivering picosecond pulses with continuously tunable 1 to 7 GHz pulse repetition rate and up to 1 kW average power [PDF]

open access: yesEPJ Web of Conferences
We report on a laser producing bursts of GHz picosecond pulses with pulse repetition rate between 1 and 7.5 GHz, tens to thousands pulses per burst, 1 kW average power and inJ energy per burst. © 2024 The Author(s).
Ye Hanyu   +11 more
doaj   +1 more source

Classification of Bee Pollen and Prediction of Sensory and Colorimetric Attributes—A Sensometric Fusion Approach by e-Nose, e-Tongue and NIR

open access: yesSensors, 2020
The chemical composition of bee pollens differs greatly and depends primarily on the botanical origin of the product. Therefore, it is a crucially important task to discriminate pollens of different plant species.
László Sipos   +6 more
doaj   +1 more source

POLLUX : a database of synthetic stellar spectra [PDF]

open access: yes, 2010
Synthetic spectra are needed to determine fundamental stellar and wind parameters of all types of stars. They are also used for the construction of theoretical spectral libraries helpful for stellar population synthesis.
A. Lèbre   +55 more
core   +1 more source

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