Results 91 to 100 of about 466,978 (244)

Optical studies of novae

open access: yes, 2012
We review the observational characteristics of classical and recurrent novae in the optical region, in the context of observational programmes carried out using telescopes at the Vainu Bappu Observatory (VBO) and the Indian Astronomical Observatory (IAO)
Anupama, G. C., Kamath, U. S.
core  

Electrospun PVDF/BaTiO3‐TiO2 Nanocomposite Yarns for Piezoelectric Energy Harvesting

open access: yesJournal of Applied Polymer Science, EarlyView.
Hybrid BTO‐TiO2 nanofillers integrated into electrospun PVDF fibers significantly enhance β‐phase formation and piezoelectric performance. The resulting nanocomposite fibers and twisted yarns generate high voltage and power output under mechanical stimulation.
Swathi Yempally   +4 more
wiley   +1 more source

High-resolution Simulations of the Interaction between the Nova/Supernova Ejecta and the Accretion Disk

open access: yesThe Astrophysical Journal
Many nova and Type Ia supernova (SN Ia) explosion scenarios involve accretion disks. However, direct numerical simulations of these explosive phenomena have barely addressed the question of the impact of ejecta−disk collision on the midterm evolution of ...
Axel S. Lechuga   +2 more
doaj   +1 more source

Two‐Dimensional van der Waals Antiferromagnets: Fabrication, Probes, Control, and Applications

open access: yesAdvanced Physics Research, EarlyView.
Two‐dimensional van der Waals antiferromagnets are emerging as versatile platforms for spintronic, optoelectronic, and quantum devices. This review summarizes recent progress in their fabrication, magnetic characterization, fields, interfacial engineering, chemical modification, and representative applications.
Huangyu Wu   +10 more
wiley   +1 more source

Temporary Equilibrium Mass Transfer Rate in Cataclysmic Variables?

open access: yesThe Astrophysical Journal
The separation of a binary system increases or decreases over time, governed by angular momentum (AM) changes. In cataclysmic variables (CVs), Roche-lobe overflow from the red dwarf (RD) to the white dwarf (WD) redistributes AM within the system through ...
Yael Hillman
doaj   +1 more source

Postcranial anatomy and osteohistology of an early prozostrodont cynodont from the Upper Triassic of Brazil

open access: yesThe Anatomical Record, EarlyView.
Abstract Prozostrodon brasiliensis, a probainognathian cynodont of the clade Prozostrodontia, is recognized as a key taxon for understanding the origin of Mammaliaformes and mammals. Despite detailed investigations of its cranial anatomy, the postcranial skeleton has received comparatively less attention.
Iasmim M. Michelotti   +4 more
wiley   +1 more source

Bioerosion traces in bones reveal an increase in ethological diversity in the insect exploitation of carcasses in the late Triassic

open access: yesThe Anatomical Record, EarlyView.
Abstract This study presents the first detailed description of bioerosion traces produced by insects in bones from the Santa Cruz Sequence (early Carnian, Santa Maria Supersequence, Brazil). An array of traces is reported, consisting of notches, a tube, trails of grooves attributed to the ichnotaxon Osteocallis mandibulus and ornamented depressions ...
Lucca S. Cunha   +2 more
wiley   +1 more source

Effectiveness of Fucoidan on Supplemental Therapy in Cancer Patients: A Systematic Review. [PDF]

open access: yesHealthcare (Basel), 2022
Wu CJ   +5 more
europepmc   +1 more source

Student‐identified barriers to histology learning and the perceived value of coloring as a multimodal educational strategy

open access: yesAnatomical Sciences Education, EarlyView.
Abstract Histology is a visually complex and cognitively demanding subject often perceived as abstract, memorization‐heavy, and disconnected from clinical practice. Despite its foundational importance, histology is frequently under‐emphasized relative to gross anatomy and lacks interactive, multimodal resources tailored to its unique challenges.
Anika Knowles   +2 more
wiley   +1 more source

The First Hours and Days of the 2021 Explosion of the Recurrent Symbiotic Nova RS Ophiuchii

open access: yesThe Astrophysical Journal
The accretion of matter onto a massive white dwarf (WD) can lead to repeated nuclear explosions on its surface over a timescale of years to decades. The seventh explosion of the recurrent symbiotic nova RS Ophiuchi (RS Oph) was recorded on 2021 August 8.
Augustin Skopal   +6 more
doaj   +1 more source

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