Results 71 to 80 of about 8,717 (264)

Aquaporin‐3 and aquaporin‐5 impact the development of pancreatic ductal adenocarcinoma spheroids

FEBS Open Bio, EarlyView.
Schematic representation of the role of aquaporin‐3 (AQP3) and aquaporin‐5 (AQP5) in pancreatic ductal adenocarcinoma (PDAC). Both proteins are upregulated in PDAC and are associated with tumor progression and metastatic potential. Silencing AQP3 or AQP5 in PDAC spheroids results in decreased diameter, area, and overall growth, underscoring their key ...
Catarina Pimpão, Diogo M. Engrácia, Graça Soveral, Filipa Mendes   +3 more
wiley   +1 more source

Eating planets makes you younger: The magnetic dynamo rejuvenation of GJ 504 by planetary engulfment

Astronomy & Astrophysics
Context. With the discovery of a few thousand exoplanets, questions have been raised regarding star-planet interactions and whether the presence of a companion may affect stellar properties. GJ 504 is an excellent target in this context. This evolved (∼2 
Bellotti S., Pezzotti C., Buldgen G., Vidotto A. A., Evensberget D., Magaudda E.   +5 more
doaj   +1 more source

Directed evolution of enzymes at the crossroads of tradition and innovation

FEBS Open Bio, EarlyView.
An iterative cycle of data‐driven enzyme optimization comprising four stages: genetic diversification of a template enzyme, expression of protein variants, high‐throughput evaluation, and machine‐learning‐guided redesign of the next variant library.
Maria Tomkova, Andrej Mirossay, Erik Sedlak   +2 more
wiley   +1 more source

Nested, asymmetric H–He circumstellar shells in the Type Icn/Ibn SN 2024abvb

Astronomy & Astrophysics
Context. Interacting transients probe mass loss in the final stages of stellar evolution; however, the geometry and timing of multi-episode mass loss remain poorly constrained.
Anderson J. P., Aster C., Bulla M., Chen T.-W., Fraser M., Galbany L., Gutiérrez C. P., Inserra C., Killestein T., Leloudas G., Lyman J. D., Maeda K., Maguire K., Mason E., Moriya T., Pastorello A., Taubenberger S., Pursiainen M., Wichern H.   +18 more
doaj   +1 more source

Formation of Neutral Disk-Like Zone Around the Active Hot Stars in Symbiotic Binaries

Open Astronomy, 2012
In this contribution we present the ionization structure in the enhanced wind from the hot star in symbiotic binaries during active phases. Rotation of the hot star leads to the compression of the outflowing material towards its equatorial plane.
Cariková Z., Skopal A.
doaj   +1 more source

Hyperactive ice‐binding proteins stabilize cell membranes and improve resistance to dehydration stress in Caenorhabditis elegans

FEBS Open Bio, EarlyView.
TisIBP8, a fungal‐derived hyperactive ice‐binding protein, helps Caenorhabditis elegans survive dehydration. It localizes near cell membranes, reduces cell damage, and helps maintain membrane structure during drying. These results suggest that ice‐binding proteins can protect cells from dehydration stress as well as freezing stress.
Daiki Shimose, Kotaro Ozaki, Ryohei Kuriyama, Yuka Ikemoto, Kazuhiro Mio, Yuji C. Sasaki, Tatsuya Arai, Sakae Tsuda, Yoichi Shinkai, Masahiro Kuramochi   +9 more
wiley   +1 more source

APEX survey of interstellar HCl

Astronomy & Astrophysics
Context. Despite being only the nineteenth most abundant element in the interstellar medium, chlorine’s reactivity and volatility give rise to a unique interstellar chemistry, favouring the formation of several chlorine-bearing hydrides.
Böhm Lennart M., Jacob Arshia M., Wyrowski Friedrich, Menten Karl M., Immer Katharina, Barnes Ashley T.   +5 more
doaj   +1 more source

Mass Ejection from the Symbiotic Prototype Z and During its 2006 Outburst

Open Astronomy, 2012
High-resolution spectroscopic observations in the region of the Balmer Hα and Hγ lines of the symbiotic binary Z And were performed during its major eruption in 2006.
Tomov N. A., Tomova M. T., Bisikalo D. V.   +2 more
doaj   +1 more source

A Main Sequence for Quasars

Frontiers in Astronomy and Space Sciences, 2018
The last 25 years saw a major step forward in the analysis of optical and UV spectroscopic data of large quasar samples. Multivariate statistical approaches have led to the definition of systematic trends in observational properties that are the basis of
Paola Marziani, Deborah Dultzin, Jack W. Sulentic, Ascensión Del Olmo, C. A. Negrete, Mary L. Martínez-Aldama, Mauro D'Onofrio, Edi Bon, Natasa Bon, Giovanna M. Stirpe   +9 more
doaj   +1 more source

Astrophysical jets and outflows

Advances in Space Research, 2005
pdf file, 20 pages, 12 figures; invited review lecture for the ASSE 2004 Meeting; submitted to Advances in Spa ...
openaire   +2 more sources