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The Messy Nature of Fiber Spectra: Star–Quasar Pairs Masquerading as Dual Type 1 AGNs

Ryan W. Pfeifle, Barry Rothberg, Kimberly A. Weaver, Remington O. Sexton et al. • The Astrophysical Journal (2023)

Theoretical studies predict that the most significant growth of supermassive black holes (SMBHs) occurs in late-stage mergers, coinciding with the manifestation of dual active galactic nuclei (AGNs), and both major and minor mergers are exp...

DOAJ Open Access (DOAJ) DOI: 10.3847/1538-4357/acbd45

A Deep SETI Search for Technosignatures in the TRAPPIST-1 System with FAST

Guang-Yuan Song, Zhen-Zhao Tao, Bo-Lun Huang, Bo Yu et al. • The Astronomical Journal (2026)

The Five-hundred-meter Aperture Spherical Telescope (FAST) is the world’s largest single-dish radio telescope, and the search for extraterrestrial intelligence (SETI) is one of its five key science objectives. We conducted a targeted search...

DOAJ Open Access (DOAJ) DOI: 10.3847/1538-3881/ae8516

High-energy astrophysics

Malcolm S. Longair • Cambridge University Press eBooks (2006)

Radio astronomy and high-energy astrophysics The early history of radio astronomy was recounted in Section 7.3; that story ended in the mid 1950s, by which time the Galactic and extragalactic nature of the discrete radio sources was establi...

OPENALEX DOI: https://doi.org/10.1017/cbo9781139878319.012

White dwarf + M dwarf Detached Binaries in Long Period Radio Transients: Observed Binary Parameters, Evolution, and Population Constraints

Antonio Rodriguez, Kareem El-Badry, Iris de Ruiter, Kaustubh Rajwade et al. • The Open Journal of Astrophysics (2026)

Long period radio transients (LPTs) are the slowest radio-pulsing sources ever found, with the current population spanning periods of seven minutes to over six hours. Two of the thirteen published LPTs, ILT J1101+5521 and GLEAM-X J0704--37,...

DOAJ Open Access (DOAJ) DOI: 10.33232/001c.167716

Magnetic Reconnection–driven Energization of Protons up to ∼400 keV at the Near-Sun Heliospheric Current Sheet

M. I. Desai, J. F. Drake, T. Phan, Z. Yin et al. • The Astrophysical Journal Letters (2025)

We report observations of direct evidence of energetic protons being accelerated above ∼400 keV within the reconnection exhaust of a heliospheric current sheet (HCS) crossing by NASA’s Parker Solar Probe (PSP) at a distance of ∼16.25 solar ...

DOAJ Open Access (DOAJ) DOI: 10.3847/2041-8213/ada697

Accretion Power in Astrophysics

Juhan Frank, Andrew R. King, Derek Jeffrey Raine • Cambridge University Press eBooks (2002)

Accretion Power in Astrophysics examines accretion as a source of energy in both binary star systems containing compact objects, and in active galactic nuclei. Assuming a basic knowledge of physics, the authors describe the physical process...

OPENALEX DOI: https://doi.org/10.1017/cbo9781139164245

Astrophysics Source Code Library

Alice Allen, Kimberly DuPrie, G. Bruce Berriman, R. J. Hanisch et al. • arXiv (Cornell University) (2012)

The Astrophysics Source Code Library (ASCL), founded in 1999, is a free on-line registry for source codes of interest to astronomers and astrophysicists. The library is housed on the discussion forum for Astronomy Picture of the Day (APOD) ...

OPENALEX Open Access DOI: https://doi.org/10.48550/arxiv.1212.1916

Linear fractal evolution characteristics of rock crack distributions during loading process

Jingyi Huang, Xu Wei, Zaimin Zheng, Xiaopeng Su et al. • Scientific Reports (2024)

Abstract To investigate the fractal characteristics of rock crack distributions during the loading process, discrete element method was used to make rock samples with joints and record the crack propagation. The Box-counting method was used...

DOAJ Open Access (DOAJ) DOI: 10.1038/s41598-024-69121-z

Utility of Bone Marrow Cell Block in the Diagnosis of Haematological Disorders: A Cross-sectional Study

Hafsa Shabeer, Shankaran Rukmini Niveditha, Thejasvi Krishnamurthy, Gayathri Bilagali Ramdas • Journal of Clinical and Diagnostic Research (2026)

Introduction: The examination of Bone Marrow Aspirate (BMA) smears and Biopsies (BMBx) are well established in the diagnosis of various haematological and non-haematological disorders. While both techniques have unique advantages over the o...

DOAJ Open Access (DOAJ) DOI: 10.7860/JCDR/2026/81391.23576

Data resource profile: a nationally representative linked pregnancy cohort in Canada integrating clinical, social, and environmental data

Sabrina Chiodo, Sonia M. Grandi, Jessica Gronsbell, Laura C. Rosella • International Journal of Population Data Science (2026)

Introduction Perinatal outcomes are shaped by clinical, social, and environmental factors, yet Canada lacks a nationally representative pregnancy cohort capturing these influences at the individual-level. This gap has limited the ability to...

DOAJ Open Access (DOAJ) DOI: 10.23889/ijpds.v8i6.3358

Consumo de energia, emissões de co2 e a geração de renda e emprego no agronegócio brasileiro: uma análise insumo–produto

Marco Antonio Montoya, Cássia Aparecida Pasqual, Ricardo Luis Lopes, Joaquim José Martins Guilhoto • Economia Aplicada (2016)

The article evaluates the structure of Brazilian agribusiness in their components such as income, employment, sectorial energy consumption, and CO2 emissions. An energy matrix with 56 consumer sectors compatible with the 56 sectors of Brazi...

DOAJ Open Access (DOAJ) DOI: 10.11606/1413-8050/ea134600

Advances of Commercial and Biological Materials for Electron Transport Layers in Biological Applications

Zhifu Yin, Zhifu Yin, Biao Lu, Yanbo Chen et al. • Frontiers in Bioengineering and Biotechnology (2022)

Electron transport layer (ETL), one of the important layers for high-performing perovskite solar cells (PSCs), also has great potential in bioengineering applications. It could be used for biological sensors, biological imaging, and biomedi...

DOAJ Open Access (DOAJ) DOI: 10.3389/fbioe.2022.900269

Experimental examination on physical and radiation shielding features of boro-silicate glasses doped with varying amounts of BaO

M.I. Sayyed, Abdelmoneim Saleh, Anjan Kumar, Fatma Elzahraa Mansour • Nuclear Engineering and Technology (2024)

Investigations were conducted on the addition of barium's impact on the radiation shielding and physical attributes of five different glasses, designated S1–S5, with varying BaO contents. Using two point sources namely Co60 and Cs137 along ...

DOAJ Open Access (DOAJ) DOI: 10.1016/j.net.2024.03.038

A <italic>&#x03BC;</italic>-Synthesis Framework for Multi-Domain Robust Load Frequency Control Under Concurrent Communication Delays and Parametric Uncertainties

Chadi Nohra, Bechara Nehme, Raymond Ghandour, Ossama Dankar et al. • IEEE Access (2026)

The integration of communication networks into modern power systems introduces variable time delays that degrade the performance of traditional Load Frequency Control (LFC), while the shift towards renewable energy sources increases system ...

DOAJ Open Access (DOAJ) DOI: 10.1109/ACCESS.2026.3675126