Reset
Showing 20 of 6,095 academic articles

Active galactic nucleus activity in nearby disk galaxies: The roles of bar strength and spiral arm morphology

Martirosyan Zh. R., Hakobyan A. A., Adibekyan V., Barkhudaryan L. V. et al. • Astronomy & Astrophysics (2026)

Context. The transport of gas toward galactic centers and its connection to active galactic nucleus (AGN) activity remain key open questions in galaxy evolution. In particular, the relative roles of stellar bars and spiral arms and their po...

DOAJ Open Access (DOAJ) DOI: 10.1051/0004-6361/202661413

Non-truncated strategy to exactly integrate the post-Newtonian Lagrangian circular restricted three-body problem

Li Huang, Lijie Mei, Shixiang Huang • European Physical Journal C: Particles and Fields (2018)

Abstract In this study, we present a novel non-truncated strategy by accompanying the fixed-point iteration with traditional numerical integrators. The proposed non-truncated strategy aims to exactly integrate implicit motion equations that...

DOAJ Open Access (DOAJ) DOI: 10.1140/epjc/s10052-018-6291-1

Evidence for Enrichment of Niobium-92 in the Outer Protosolar Disk

Yuki Hibiya, Tsuyoshi Iizuka, Hatsuki Enomoto, Takehito Hayakawa • The Astrophysical Journal Letters (2023)

The short-lived radionuclide, niobium-92 ( ^92 Nb), has been used to estimate the site of nucleosynthesis for p- nuclei and the timing of planetary differentiation, assuming that it was uniformly distributed in the early solar system. Here,...

DOAJ Open Access (DOAJ) DOI: 10.3847/2041-8213/acab5d

Shocklets and Short Large Amplitude Magnetic Structures (SLAMS) in the High Mach Foreshock of Venus

Glyn A. Collinson, Heli Hietala, Ferdinand Plaschke, Tomas Karlsson et al. • Geophysical Research Letters (2023)

Abstract Shocklets and short large‐amplitude magnetic structures (SLAMS) are steepened magnetic fluctuations commonly found in Earth's upstream foreshock. Here we present Venus Express observations from the 26th of February 2009 establishin...

DOAJ Open Access (DOAJ) DOI: 10.1029/2023GL104610

Social Network Analysis of Editorial Board Interlocking Phenomena from the Perspective of Astronomy and Astrophysics Journals

Farshid Danesh, Samaneh Kesht Karan, Lili Banihashemi, Somayeh GhaviDel • International Journal of Information Science and Management (2023)

Editorial board members (EBMs) of journals play a pivotal role in authentic international scientific journals. Editorial Board Interlocking (EBI) phenomenon reflects the effectiveness and importance of the scholarly journal's editorial boar...

DOAJ Open Access (DOAJ) DOI: 10.22034/ijism.2022.1977746.0

Application of Convolutional Neural Network for Fault Diagnosis of Bearing Scratch of an Induction Motor

Shrinathan Esaki Muthu Pandara Kone, Kenichi Yatsugi, Yukio Mizuno, Hisahide Nakamura • Applied Sciences (2022)

The demand for the condition monitoring of induction motors is increasing in various fields, such as industry, transportation, and daily life. Bearing faults are the most common faults, and many fault diagnosis methods have been proposed us...

DOAJ Open Access (DOAJ) DOI: 10.3390/app12115513

Potential of Radioactive Isotopes Production in DEMO for Commercial Use

Pavel Pereslavtsev, Christian Bachmann, Joelle Elbez-Uzan, Jin Hun Park • Applied Sciences (2024)

There is widespread use of nuclear radiation for medical imagery and treatments. Worldwide, almost 40 million treatments are performed per year. There are also applications of radiation sources in other commercial fields, e.g., for weld ins...

DOAJ Open Access (DOAJ) DOI: 10.3390/app14010442

Embodied science and mixed reality: How gesture and motion capture affect physics education

Mina C. Johnson-Glenberg, Colleen Megowan-Romanowicz • Cognitive Research (2017)

Abstract A mixed design was created using text and game-like multimedia to instruct in the content of physics. The study assessed which variables predicted learning gains after a 1-h lesson on the electric field. The three manipulated varia...

DOAJ Open Access (DOAJ) DOI: 10.1186/s41235-017-0060-9

Day-Ahead Electric Load Forecasting for the Residential Building with a Small-Size Dataset Based on a Self-Organizing Map and a Stacking Ensemble Learning Method

Jaehyun Lee, Jinho Kim, Woong Ko • Applied Sciences (2019)

Electric load forecasting for buildings is important as it assists building managers or system operators to plan energy usage and strategize accordingly. Recent increases in the adoption of advanced metering infrastructure (AMI) have made b...

DOAJ Open Access (DOAJ) DOI: 10.3390/app9061231

Seroprevalence of dengue, yellow fever, and related flaviviruses among the rural human population in Nguruman and Kerio Valley, Kenya

Mercy Hokah Kibathi, Mercy Hokah Kibathi, Edith Chepkorir, Sepha Nyatichi Mabeya et al. • Frontiers in Virology (2024)

BackgroundYellow fever virus (YFV) and dengue virus (DENV) are among the major re-emerging arboviruses that pose a significant threat to public health. Their associated burden and prevalence can be substantially underestimated due to insuff...

DOAJ Open Access (DOAJ) DOI: 10.3389/fviro.2024.1459021

A qualitative study of developing beliefs about health, illness and healthcare in migrant African women with gestational diabetes living in Sweden

Katarina Hjelm, Karin Bard, Jan Apelqvist • BMC Women's Health (2018)

Abstract Background Gestational diabetes (GDM) is associated with health risks for both mother and child, and is particularly relevant to migrant women and women of African origin. With today’s extensive global migration, contact with the n...

DOAJ Open Access (DOAJ) DOI: 10.1186/s12905-018-0518-z

Vape Smoking: Prevalence and Perception among Damnhour University Students

Naglaa Hussein • International Egyptian Journal of Nursing Sciences and Research (2025)

Background: E-cigarette or vape smoking is becoming a worldwide concern, yet vapinginformation is not widespread among Middle Eastern university students. The paper offers the pattern ofvape smoking in Damnhour University, Egypt, which uses...

DOAJ Open Access (DOAJ) DOI: 10.21608/ejnsr.2025.370486.1434

Topical Pharmacological Treatment of Actinic Keratoses: Focus on Tirbanibulin 1% Ointment

Mario Valenti, Matteo Bianco, Alessandra Narcisi, Antonio Costanzo et al. • Dermatology Practical & Conceptual (2024)

Actinic keratosis (AK) is a frequent precancerous skin lesion that mostly affects chronically sun-exposed areas. Chronic sun damage leads to various mutations in onco-suppressor and oncogenic genes which cause an uncontrolled proliferation ...

DOAJ Open Access (DOAJ) DOI: 10.5826/dpc.1403S1a145S

Evaluation of Respiratory Protection Program in Petrochemical Industries: Application of Analytic Hierarchy Process

Hadi Kolahi, Mehdi Jahangiri, Haleh Ghaem, Akbar Rostamabadi et al. • Safety and Health at Work (2018)

Background: Respiratory protection equipment (RPE) is the last resort to control exposure to workplace air pollutants. A comprehensive respiratory protection program (RPP) ensures that RPE is selected, used, and cared properly. Therefore, R...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.shaw.2017.05.003