Results 81 to 90 of about 42,151 (263)

The ELM Survey South. II. Two Dozen New Low-mass White Dwarf Binaries

The Astrophysical Journal, 2023
We present the results from our ongoing spectroscopic survey targeting low-mass white dwarf binaries, focusing on the southern sky. We used a Gaia DR2- and eDR3-based selection and identified 28 new binaries, including 19 new extremely low-mass (ELM ...
Alekzander Kosakowski, Warren R. Brown, Mukremin Kilic, Thomas Kupfer, Antoine Bédard, A. Gianninas, Marcel A. Agüeros, Manuel Barrientos   +7 more
doaj   +1 more source

NDST3‐Induced Epigenetic Reprogramming Reverses Neurodegeneration in Parkinson's Disease

Advanced Science, EarlyView.
NDST3‐mediated epigenetic reprogramming revitalizes neuronal circuits in the substantia nigra and striatum to halt dopaminergic neuron degeneration and restore motor function in Parkinson's disease models. This strategy promotes neuronal maintenance and functional recovery, highlighting NDST3's therapeutic potential in neurodegenerative disorders ...
Yujung Chang, Yongwoo Na, Hyeonjoo Im, Garam Yang, Seungseon Yang, Hyun Soo Shim, Chunggoo Kim, GyeungYun Kim, Hyeok Ju Park, Hee Young Kim, Seung Eun Lee, Wonwoong Lee, Yoon Ha, Sungho Park, Jieun Kim, Won‐Young Cho, Woong Sun, Jong‐Seo Kim, Junsang Yoo   +18 more
wiley   +1 more source

β Cephei Pulsators in Eclipsing Binaries Observed with TESS

The Astrophysical Journal Supplement Series
The combined strength of asteroseismology and empirical stellar basic parameter determinations for in-depth asteroseismic analysis of massive pulsators in eclipsing binaries shows great potential for treating the challenging and mysterious discrepancies ...
Christian I. Eze, Gerald Handler
doaj   +1 more source

Butterfly‐Shaped Guest Molecules Enable Tunable Room‐Temperature Phosphorescence in Host‐Guest Doped Systems

Advanced Science, EarlyView.
Butterfly‐shaped triphenylamine‐based guest molecules (DBDBD) doped into rigid host matrices (TPP, CA) achieve efficient, multicolor‐tunable room‐temperature phosphorescence (RTP). The host‐guest synergy enables ultralong afterglow (up to 4 s) and quantum yields (Φp = 3.42%), with applications in dynamic anti‐counterfeiting and information encryption ...
Zongyong Lou, Wenhui Feng, Kaining Wang, Kun Gong, Guangyu Wen, Denghui Ji   +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

The New Version of the Binary Star Database (BDB)

Open Astronomy, 2012
The Binary star database contains data on about 100 000 stellar systems of multiplicity 2 to 22, taken from a large variety of published catalogues for all types of binary stars: visual, orbital, astrometric, interferometric, spectroscopic, photometric ...
Kaygorodov P., Debray B., Kolesnikov N., Kovaleva D., Malkov O.   +4 more
doaj   +1 more source

A Robust Synthesis of Fluorosurfactants with Tunable Functionalities via a Two‐Step Reaction

Advanced Science, EarlyView.
The fluorosurfactants are synthesized through a two‐step reaction, and demonstrated excellent performance in droplet microfluidics. In addition, they exhibited tunable functionalities at the droplet interface via hydrogen bonding and coordination interactions.
Jiyuan Yao, Shijian Huang, Shuting Xie, Zhenping Liu, Yueming Deng, Luca Carnevale, Mingliang Jin, Loes Irene Segerink, Da Wang, Lingling Shui, Sergii Pud   +10 more
wiley   +1 more source

EVOLUTIONARY EFFECTS IN CLOSE BINARIES: ANALYSIS OF THE DISTRIBUTION OF ORBITAL ECCENTRICITIES

Odessa Astronomical Publications, 2017
Dependencies of orbital eccentricity e on orbital periods P in close binary systems (CBS) of different masses and ages, being at the Main Sequence (DMS) and being eclipsing binary stars (EBS), are reviewed.
A. M. Cherepashchuk, V. G. Karetnikov
doaj   +1 more source

A Modular Chemoenzymatic Cascade Simplifies Divergent Synthesis of Natural and Unnatural Benzylisoquinoline Alkaloids

Advanced Science, EarlyView.
A simplified chemoenzymatic platform is designed to integrate an enzyme cascade with subsequent chemical steps, enabling the divergent production of diverse benzylisoquinoline alkaloids (BIAs). Demonstrating remarkable versatility and enantioselectivity, four distinct classes of BIAs are efficiently generated, in which the natural medicine papaverine ...
Huiling Liu, Zhenbo Yuan, Yue Gao, Fei Li, Zhiwei Deng, Yan Zhang, Zhengshan Luo, Changmei Liu, Yijian Rao   +8 more
wiley   +1 more source

Machine Learning Elucidates Population Density‐Dependent Morphological Phenotypic Changes of Macrophages

Advanced Intelligent Systems, EarlyView.
Herein, label‐free phase‐contrast microscopy imaging with machine learning to interrogate the relationship between the population density and morphological features of macrophages is coupled. Variations in the morphological phenotypes of macrophages, which are influenced by their population density, are systematically revealed.
Tiffany Thanhtruc Pham, Kenry
wiley   +1 more source