Results 51 to 60 of about 1,628,489 (254)

The influence of hyperfine structure on some manganese line profiles in the solar spectrum [PDF]

open access: yesSerbian Astronomical Journal, 2003
Taking into account effects of hyperfine structure, we calculated the synthetic solar spectrum for wavelength intervals around nine neutral manganese lines.
Vitas Nikola D., Vince Ištvan I.
doaj   +1 more source

Microlensing in H1413+117 : disentangling line profile emission and absorption in a broad absorption line quasar

open access: yes, 2010
On the basis of 16 years of spectroscopic observations of the four components of the gravitationally lensed broad absorption line (BAL) quasar H1413+117, covering the ultraviolet to visible rest-frame spectral range, we analyze the spectral differences ...
Angonin   +72 more
core   +1 more source

Asymmetry of the Natural Line Profile for the Hydrogen Atom [PDF]

open access: yesPhysical Review Letters, 2001
Physical Review ...
Labzowsky, L.   +3 more
openaire   +4 more sources

Clinical Insights Into Hypercalcemia of Malignancy in Childhood

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Hypercalcemia of malignancy (HCM) is a rare but life‐threatening metabolic emergency in children that occurs in less than 1% of pediatric cancer cases, with a reported incidence ranging from 0.4% to 1.0% across different studies. While it is observed in 10%–20% of adult malignancies, pediatric HCM remains relatively uncommon.
Hüseyin Anıl Korkmaz
wiley   +1 more source

Stark Broadening of Cr III Spectral Lines: DO White Dwarfs

open access: yesAtoms, 2018
Using the modified semiempirical method of Dimitrijević and Konjević, Stark widths have been calculated for six Cr III transitions, for an electron density of 10 17 cm ‒ 3 and for temperatures from 5000–80,000 K.
Milan S. Dimitrijević   +1 more
doaj   +1 more source

Rotating Disks and Non-Kinematic Double Peaks

open access: yes, 2012
Double-peaked line profiles are commonly considered a hallmark of rotating disks, with the distance between the peaks a measure of the rotation velocity. However, double-peaks can arise also from radiative transfer effects in optically thick non-rotating
Andrés Asensio Ramos   +14 more
core   +1 more source

NRASQ61R Expression in Lymphatic Endothelial Cells Causes Enlarged Vessels, Hemorrhagic Chylous Effusions, and High Mortality in a Mouse Model of Kaposiform Lymphangiomatosis

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background Kaposiform lymphangiomatosis (KLA) is an aggressive complex lymphatic anomaly. Patients exhibit malformed lymphatic vessels and often develop hemorrhagic effusions and elevated angiopoietin‐2 (Ang‐2) levels. A somatic NRAS p.Q61R (NRASQ61R) mutation has been associated with KLA.
C. Griffin McDaniel   +3 more
wiley   +1 more source

On the modifications of oscillator strengths and damping constants of Fe I spectral lines from 500 nm to 510 nm [PDF]

open access: yesSerbian Astronomical Journal, 2004
We modified oscillator strengths and enhancement factors of van der Waals damping constants for 84 moderately strong and weak neutral iron spectral lines between 500 nm and 510 nm, by fitting the solar synthetic spectrum to the observed one.
Čeki A., Latković O., Vince Ištvan I.
doaj   +1 more source

Peculiarities and variations in the optical spectrum of the post-AGB star V448Lac=IRAS22223+4327

open access: yes, 2010
Repeated observations with high spectral resolution acquired in 1998-2008 are used to study the temporal behavior of the spectral line profiles and velocity field in the atmosphere and circumstellar envelope of the post-AGB star V448Lac. Asymmetry of the
A. Omont   +49 more
core   +1 more source

Health‐Related Quality of Life and Symptom Severity Among Patients With PIK3CA‐Related Overgrowth Spectrum: A Mixed‐Methods Study to Understand Real‐World Experience With Alpelisib Treatment

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background PIK3CA‐related overgrowth spectrum (PROS) includes several rare overgrowth disorders resulting from somatic gain‐of‐function mutations in PIK3CA. Despite treatment advances, including the recent approval of alpelisib for PROS in the United States, literature detailing the patient experience with PROS is limited.
Vamsi Bollu   +8 more
wiley   +1 more source

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