Results 51 to 60 of about 56,054 (306)

Signatures of Mass Segregation from Competitive Accretion and Monolithic Collapse

The Astrophysical Journal
The two main competing theories proposed to explain the formation of massive (>10 M _⊙ ) stars—competitive accretion and monolithic core collapse—make different observable predictions for the environment of the massive stars during, and immediately after,
Richard J. Parker, Emily J. Pinson, Hayley L. Alcock, James E. Dale   +3 more
doaj   +1 more source

Abundances of hydrogen sulfide in star-forming regions

The Astrophysical Journal, 1991
The published version is located at http://adsabs.harvard.edu/full/1991ApJ...366 ...
MINH, YC, ZIURYS, LM, Irvine, William M., MCGONAGLE, D   +3 more
openaire   +3 more sources

Calpain small subunit homodimerization is robust and calcium‐independent

FEBS Letters, EarlyView.
Calpains dimerize via penta‐EF‐hand (PEF) domains. Using single‐molecule force spectroscopy, we measured the strength and kinetics of PEF–PEF homodimer binding. The interaction is robust, shows a transient conformational step before dissociation, and remains largely insensitive to Ca2+.
Nesha May O. Andoy, Trina Dykstra‐MacPherson, Mathias A. Bell, Peter L. Davies, Ruby May A. Sullan   +4 more
wiley   +1 more source

Digging into the Interior of Hot Cores with ALMA (DIHCA). VII. Disk Candidates around High-mass Stars and Evidence of Anisotropic Infall

The Astrophysical Journal
We study the kinematics of condensations in 30 fields forming high-mass stars with the Atacama Large Millimeter/submillimeter Array at a high resolution of $\sim 0\mathop{.}\limits{^{\prime\prime} }08$ on average (∼230 au).
Fernando A. Olguin, Patricio Sanhueza, Yoko Oya, Adam Ginsburg, Maria T. Beltrán, Kaho Morii, Roberto Galván-Madrid, Huei-Ru Vivien Chen, Qiuyi Luo, Kei E. I. Tanaka, Suinan Zhang, Yu Cheng, Fumitaka Nakamura, Shanghuo Li, Kotomi Taniguchi, Guido Garay, Qizhou Zhang, Masao Saito, Takeshi Sakai, Xing Lu, Jixiang Weng, Andrés E. Guzmán   +21 more
doaj   +1 more source

Structural insights into an engineered feruloyl esterase with improved MHET degrading properties

FEBS Letters, EarlyView.
A feruloyl esterase was engineered to mimic key features of MHETase, enhancing the degradation of PET oligomers. Structural and computational analysis reveal how a point mutation stabilizes the active site and reshapes the binding cleft, expading substrate scope.
Panagiota Karampa, Konstantinos Makryniotis, Theofani‐Iosifina Sousani, Evangelos Topakas, Vangelis Daskalakis, Maria Dimarogona   +5 more
wiley   +1 more source

Alignment Parameters: Quantifying Dense Core Alignment in Star-forming Regions

The Astrophysical Journal
Recent high-resolution observations at millimeter (mm) and submillimeter wavelengths reveal a diverse spatial distribution for subparsec-scale dense cores within star-forming regions, ranging from clustered to aligned arrangements.
Wei-An Chen, Ya-Wen Tang, S. D. Clarke, Patricio Sanhueza   +3 more
doaj   +1 more source

Diversity and complexity in neural organoids

FEBS Letters, EarlyView.
Neural organoid research aims to expand genetic diversity on one side and increase tissue complexity on the other. Chimeroids integrate multiple donor genomes within single organoids. Self‐organising multi‐identity organoids, exogenous cell seeding, or enforced assembly of region‐specific organoids contribute to tissue complexity.
Ilaria Chiaradia, Madeline A. Lancaster
wiley   +1 more source

Direct Observational Evidence of Multi-epoch Massive Star Formation in G24.47+0.49

The Astrophysical Journal Letters
Using new continuum and molecular line data from the Atacama Large Millimeter/submillimeter Array Three-millimeter Observations of Massive Star-forming Regions (ATOMS) survey and archival Very Large Array, 4.86 GHz data, we present direct observational ...
Anindya Saha, Anandmayee Tej, Hong-Li Liu, Tie Liu, Guido Garay, Paul F. Goldsmith, Chang Won Lee, Jinhua He, Mika Juvela, Leonardo Bronfman, Tapas Baug, Enrique Vázquez-Semadeni, Patricio Sanhueza, Shanghuo Li, James O. Chibueze, N. K. Bhadari, Lokesh K. Dewangan, Swagat Ranjan Das, Feng-Wei Xu, Namitha Issac, Jihye Hwang, L. Viktor Tóth   +21 more
doaj   +1 more source

Projection effects in star-forming regions

Astronomy & Astrophysics
Stars are formed as molecular clouds fragment into networks of dense cores, filaments, and sub-clusters. The characteristic spacing of these dense cores is therefore a key observable imprint of the underlying fragmentation physics and is often compared ...
Barnes A. T., Morii K., Pineda J. E., Parker R. J., Schisano E., Traficante A., Redaelli E., Immer K., Henshaw J. D., Sanhueza P., Motte F., Hacar A.   +11 more
doaj   +1 more source

Hyperosmotic stress induces PARP1‐mediated HPF1‐dependent mono(ADP‐ribosyl)ation

FEBS Letters, EarlyView.
Sorbitol‐induced hyperosmotic stress rapidly induces reversible mono(ADP‐ribosyl)ation (MARylation) on PARP1 without the signs of genotoxic signaling. We show that PARP1 autoMARylation is HPF1 dependent and forms hydroxylamine‐resistant O‐glycosidic linkages.
Anna Georgina Kopasz, Mihály Mérey, Rebeka Vásárhelyi, Ramóna Pék, Victor Imburchia, László Henn, Adrián Kószó, Nicholas D. Lakin, Ivan Ahel, Sébastien Huet, Ágnes Czibula, Gyula Timinszky   +11 more
wiley   +1 more source