Results 61 to 70 of about 1,301 (262)

The Impact of Breathing Pulses during Core Helium Burning on the Core Chemical Structure and Pulsations of Hydrogen-rich Atmosphere White Dwarfs

open access: yesThe Astrophysical Journal
Breathing pulses are mixing episodes that could develop during the core helium-burning phase of low- and intermediate-mass stars. The occurrence of breathing pulses is expected to bear consequences on the formation and evolution of white dwarfs ...
Alejandro H. Córsico   +1 more
doaj   +1 more source

Exploring the Nexus Between Sustainability Index and Central European Stock Markets Competitiveness: Evidence Through Time–Frequency Analysis and SHAP

open access: yesJournal of Forecasting, EarlyView.
ABSTRACT Sustainability has become an important factor shaping financial markets and investor behavior. This paper examines the relationship between sustainability indices and Central European stock markets using a time–frequency approach. Wavelet coherence is employed to capture time‐varying co‐movements between sustainability indices and stock market
Zuzana Janková   +4 more
wiley   +1 more source

Violent mergers revisited: The origin of the fastest stars in the Galaxy

open access: yesAstronomy & Astrophysics
Binary systems of two carbon-oxygen white dwarfs are one of the most promising candidates for the progenitor systems of Type Ia supernovae. Violent mergers, where the primary white dwarf ignites when the secondary white dwarf smashes into it while being ...
Pakmor Rüdiger   +14 more
doaj   +1 more source

Predicting Major Depression Among Diverse Online Gamers: The Role of Internet Addiction and Spirituality

open access: yesJournal of Addictions &Offender Counseling, EarlyView.
ABSTRACT This study analyzed whether religious or spiritual affiliation and therapy enrollment protect against symptoms meeting Major Depressive Disorder criteria beyond demographic, Internet addiction, and described therapy enrollment. Findings illustrated one risk factor and one protective factor associated with experiencing symptoms that meet Major ...
Lindsay A. Lundeen, John R. McCall
wiley   +1 more source

Asteroseismology of white dwarf stars [PDF]

open access: yesHighlights of Astronomy, 1995
Perhaps the hardest scientific problems to solve are those most scientists believe have already been solved, but which have not. Any model we make of an astronomical process is doomed to be incomplete at some level; the “broad-brush” picture of stellar structure and evolution is often accepted as a solved problem, but in fact many discrepancies exist ...
openaire   +1 more source

The DB gap and a new class of pulsating white dwarfs

open access: yesEPJ Web of Conferences, 2013
The recent systematic surveys providing enormously massive datasets of white dwarfs show that there is still a deficit of a factor of 2.5 in the DA/non-DA ratio within the temperature range of 30 000 K < Teff < 45 000 K, which has been regarded as the ...
Shibahashi H.
doaj   +1 more source

Exploring the Relationship Between MDM4 Gene Polymorphisms (rs1380576 and rs4245739) and Breast Cancer Susceptibility in Bangladesh: A Case–Control Study

open access: yesJournal of Clinical Laboratory Analysis, EarlyView.
Our findings indicated that the rs4245739 A>C polymorphism was not associated with BC risk in the Bangladeshi population, whereas the rs1380576 C>G polymorphism was significantly associated with BC risk. This study provides new insights into the genetic factors influencing breast cancer susceptibility in the Bangladeshi population, highlighting the ...
J. M. Aousiful Islam   +7 more
wiley   +1 more source

Looking Within: Self‐Concept, Cognitive Flexibility, and Emotion Regulation as Intrapersonal Discriminants of Non‐Suicidal Self‐Injury Cessation

open access: yesJournal of Clinical Psychology, EarlyView.
ABSTRACT Background Given their modifiable nature, understanding the intrapersonal factors involved in the cessation of non‐suicidal self‐injury (NSSI) is needed to inform existing therapeutic approaches and explore novel avenues for supporting individuals with NSSI.
Caitlyn Herrick   +3 more
wiley   +1 more source

GD1212: Probing deep into the interior of a pulsating white dwarf star

open access: yesEPJ Web of Conferences, 2015
We present the first self-consistent seismic analysis of a white dwarf star, GD 1212, in the Kepler2 field. We precisely establish the fundamental parameters of the star using the forward method based on physically sound models.
Giammichele N.   +4 more
doaj   +1 more source

A Guide to Key Decision Criteria for Likert‐Scale Use in Survey Research

open access: yesGlobal Business and Organizational Excellence, EarlyView.
ABSTRACT Although widely used in survey research, the application of the Likert scale often lacks rigorous justification in relation to key methodological decisions. Furthermore, inconsistencies in terminology persist, for example, the common reference made to the “5‐point Likert scale,” even though debate is ongoing about the optimal number of ...
Khan Md Raziuddin Taufique   +2 more
wiley   +1 more source

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