Results 111 to 120 of about 59,262 (278)

Detection of Contact Binary Candidates Observed By TESS Using the Autoencoder Neural Network

The Astronomical Journal
A contact binary may be the progenitor of a red nova that eventually produces a merger event and have a cut-off period of around 0.2 days. Therefore, a large number of contact binaries is needed to search for the progenitor of red novae and to study the ...
Xu Ding, ZhiMing Song, ChuanJun Wang, KaiFan Ji   +3 more
doaj   +1 more source

The Evolutionary Statuses of Solar Type Detached Eclipsing Binary Stars [PDF]

Journal of Astronomy and Space Sciences, 2012
We presented fundamental stellar parameters and evolutionary statuses of six solar type detached eclipsing binaries whose masses are in the range of 0.97-1.43 M⊙. EK Cep and FL Lyr belong to the zero age main sequence.
Chanisa Kanjanascul, Kiehunn Bach, Kyeongsoo Hong, Sungeun Kim, Jae-Woo Lee, Young-Woon Kang   +5 more
doaj   +1 more source

In Vitro Live Cell Imaging Reveals Nuclear Dynamics and Role of the Cytoskeleton During Asymmetric Division of Pollen Mitosis I in Nicotiana Benthamiana

Cytoskeleton, EarlyView.
ABSTRACT Pollen is a male gametophyte of angiosperms. Following meiosis, the microspore undergoes an asymmetric division called pollen mitosis I (PMI), which produces two cells of different sizes: a large vegetative cell and a small generative cell. Polarized nuclear migration and positioning during PMI are important for successful pollen development ...
Yoko Mizuta, Masako Igarashi, Tomomi Shinagawa, Ikuma Kaneshiro, Haoto Anan, Daisuke Kurihara   +5 more
wiley   +1 more source

Short-period Heartbeat Binaries from TESS Full-frame Images

The Astrophysical Journal Supplement Series
We identify 240 short-period ( P ≲ 10 days) binary systems in Transiting Exoplanet Survey Satellite data, 180 of which are heartbeat binaries. The sample is mostly a mix of A- and B-type stars and primarily includes eclipsing systems, where over 30% of ...
Siddhant Solanki, Agnieszka M. Cieplak, Jeremy Schnittman, John G. Baker, Thomas Barclay, Richard K. Barry, Veselin Kostov, Ethan Kruse, Greg Olmschenk, Brian P. Powell, Stela Ishitani Silva, Guillermo Torres   +11 more
doaj   +1 more source

Disc‐Toroid Hybrid Lipid Nanoparticles for Efficient Drug Encapsulation and Subcutaneous Delivery

Small, EarlyView.
This study demonstrates sub‐50 nm solid‐lipid nanoparticles with long‐term stability, high drug loading, and strong tissue compatibility. Disc‐toroid morphology is confirmed and may play a role in cellular interactions, while low cytotoxicity and minimal systemic permeation confirm depot‐like behavior. These nanoparticles represent a versatile platform
Zanelle van Niekerk, Rima Nuwayhid, Stefaniya Gaydarova, Eva Bittrich, Natalia Makarova, Susanne Boye, Christo Tzachev, Jan C. Simon, Sandra Franz, Albena Lederer   +9 more
wiley   +1 more source

Luminosity Discrepancy in the Equal-Mass, Pre--Main Sequence Eclipsing Binary Par 1802: Non-Coevality or Tidal Heating?

, 2011
Parenago 1802, a member of the ~1 Myr Orion Nebula Cluster, is a double-lined, detached eclipsing binary in a 4.674 d orbit, with equal-mass components (M_2/M_1 = 0.985 \pm 0.029).
Andrej Prša, Baraffe, Barnes, Cargile, Carpenter, Covino, D'Antona, Eric Stempels, Greenberg, Gómez Maqueo Chew, Hauschildt, Hut, Jackson, Keivan G. Stassun, Leslie Hebb, Luhman, López-Morales, Mathieu, Mazeh, Murray, O'Dell, Palla, Prša, René Heller, Robert D. Mathieu, Rory Barnes, Schwarzenberg-Czerny, Siess, Simon, Stassun, Stassun, Stassun, Torres, Whitney, Yilen Gómez Maqueo Chew, Zahn, Zahn   +36 more
core   +1 more source

HRTEM Imaging and Mechanistic Insights Into Carbon Nanotube Nucleation and Growth on Fe Nanocatalysts in a Thermal Plasma

Small Methods, EarlyView.
Carbon nanotubes (CNTs) were successfully debundled from Tuball soots produced using iron nanocatalysts in arc discharge thermal plasma and distributed on monolayer graphene for HRTEM imaging for mechanistic insights into CNT synthesis. Zigzag single‐wall or double‐wall CNTs were identified.
Hengfei Gu, Stanislav Musikhin, Guangming Cheng, Nan Yao, Yevgeny Raitses, Bruce E. Koel   +5 more
wiley   +1 more source

A Systematic Search for Big Dippers in ASAS-SN

The Open Journal of Astrophysics
Dipper stars are extrinsically variable stars with deep dimming events due to extended, often dusty, structures produced by a wide range of mechanisms such as collisions, protoplanetary evolution or stellar winds.
B. JoHantgen, D. M. Rowan, R. Forés-Toribio, C. S. Kochanek, K. Z. Stanek, B. J. Shappee, Subo Dong, J. L. Prieto, Todd A. Thompson   +8 more
doaj   +1 more source

Data privacy model using blockchain reinforcement federated learning approach for scalable internet of medical things

CAAI Transactions on Intelligence Technology, EarlyView.
Abstract Internet of Medical Things (IoMT) has typical advancements in the healthcare sector with rapid potential proof for decentralised communication systems that have been applied for collecting and monitoring COVID‐19 patient data. Machine Learning algorithms typically use the risk score of each patient based on risk factors, which could help ...
Chandramohan Dhasaratha, Mohammad Kamrul Hasan, Shayla Islam, Shailesh Khapre, Salwani Abdullah, Taher M. Ghazal, Ahmed Ibrahim Alzahrani, Nasser Alalwan, Nguyen Vo, Md Akhtaruzzaman   +9 more
wiley   +1 more source

Haunting the Historiography of Slaves in South Asia from the nineteenth century to the present

Gender &History, EarlyView.
ABSTRACT Using both English and Urdu‐language records, this article traces the career of a few African and Afro‐Asian women slaves in the household‐state of Awadh during the first half of the nineteenth century. Focusing on the same records, this article compares a master‐poet's recognition of the motherhood of the African and Afro‐Asian slaves to the ...
Indrani Chatterjee
wiley   +1 more source