Results 41 to 50 of about 4,442 (177)

A spatio-kinematic model for jets in post-AGB stars, [PDF]

Astronomy & Astrophysics, 2019
Aims. We aim to determine the geometry, density gradient, and velocity structure of jets in post-asymptotic giant branch (post-AGB) binaries. Methods. Our high cadence time series of high-resolution optical spectra of jet-creating post-AGB binary systems provide us with a unique tomography of the jet.
Bollen, D., Kamath, D., Van Winekel, H., De Marco, O.   +3 more
openaire   +2 more sources

Bioinformatics‐Driven Design of Fusion Recombinant Protein (EgFABP1‐EgTeg) for Enhanced Immunodiagnosis of Hydatid Cysts

Immunity, Inflammation and Disease, Volume 14, Issue 5, May 2026.
ABSTRACT Background Hydatid cyst disease is caused by the parasite Echinococcus and poses significant health concerns worldwide. Due to the lack of early symptoms and limited diagnostic tools, researchers aim to design a more specific and sensitive antigen. The study focuses on developing a recombinant multi‐epitope antigen using two parasite proteins (
Abolfazl Masoumi Koushk Mehdi, Hossein Motedayyen, Mohsen Arbabi, Amin Moradi Hasan‐Abad   +3 more
wiley   +1 more source

Observation and Coordination Needs for Current, Near‐Future, and Next Generation Earth‐Observing SAR Systems

Earth and Space Science, Volume 13, Issue 5, May 2026.
Abstract This paper summarizes an evaluation by experts of how coordination of Earth‐observing Synthetic Aperture Radar (SAR) missions among the world's space agencies could advance toward game‐changing scientific discoveries and fully realizing SAR's practical capability to address many issues facing society.
Cathleen E. Jones, Ake Rosenqvist, Björn Rommen, Magdalena Fitrzyk, Eric Rignot, Bernd Scheuchl, Yujie Zheng, Andrew Hooper, Mark Simons, Tomokazu Kobayashi, Paul Siqueira, Maurizio Santoro, Takeo Tadono, Laura Hess, Heather McNairn, Laura Frulla, Malin Johansson, Wolfgang Dierking, Line Rouyet, Annett Bartsch, Paco Lopez Dekker, Johnny A. Johannessen   +21 more
wiley   +1 more source

Unraveling Disks in AGB Stars

, 2015
It is commonly accepted that asymmetries found in the post-AGB stars and planetary nebulae should originate as early as during the AGB phase. We present results from our high-angular resolution observing programs, with an aperture masking technique on ...
Paladini, Claudia, Tuthill, P. C.,, Tuthill, Peter P.G., A.A. Zijlstra, Wittkowski, Markus, Norris, B. R. M., P.G. Tuthill, Lykou, F., Paladini, C., Tuthill, P. G.,, Tuthill, P. C., Lagadec, E., Tuthill, P. G., Kluska, J.,, Hron, J.,, Wittkowski, M., Zijlstra, A.,, Ramstedt, Sofia,, E. Lagadec, Lagadec, E.,, Ramstedt, S., Zijlstra, A. A.,, Maercker, Matthias, Maercker, M.,, Kluska, J., Zijlstra, A. A., M. Wittkowski, F. Lykou, Hron, J., Lykou, Foteini, Zijlstra, A., Maercker, Matthias,, J. Kluska, Hron, Josef, Ramstedt, Sofia, Kluska, Jacques, B.R.M. Norris, Wittkowski, M.,, Norris, Barnaby R M, Lagadec, Eric, J. Hron, S. Ramstedt, Norris, B. R. M.,, Lykou, F.,, M. Maercker, Paladini, C.,, Zijlstra, Albert A.A., Ramstedt, S.,, C. Paladini   +48 more
core   +1 more source

Nucleosynthesis in AGB Stars Traced by Oxygen Isotopic Ratios

, 2015
Isotopic ratios are by far the best diagnostic tracers of the stellar origin of elements, as they are very sensitive to the precise conditions in the nuclear burning regions. They allow us to give direct constraints on stellar evolution models and on the
de Koter, A.,, Ramstedt, Sofia,, Olofsson, H.,, Decin, L.,, De Nutte, R.,, Lombaert, R.,, Milam, S.,   +6 more
core   +1 more source

Spectroscopic properties of post-AGB stars [PDF]

Proceedings of the International Astronomical Union, 2006
A review of the spectroscopic properties of post-AGB stars is presented.
openaire   +1 more source

Low‐nitrogen addition amplifies the positive effect of grazing exclusion on plant diversity and community stability

Functional Ecology, Volume 40, Issue 5, Page 1352-1368, May 2026.
Read the free Plain Language Summary for this article on the Journal blog. Abstract Grazing exclusion is widely used for grassland restoration but often improves productivity slowly, whereas nitrogen (N) addition can rapidly boost productivity yet may erode plant diversity and community stability over the long term.
Chunping Zhang, Kang Yang, Zhifa Zang, Mengmeng Lu, Sihan Chen, Yuansheng Huang, Jiaxin Li   +6 more
wiley   +1 more source

Testing stellar models with observations from AGB and post-AGB stars [PDF]

, 2018
Low- to intermediate-mass stars (0.8 - 7 M{u2299}) are interesting in a broad astronomical context because they produce large amounts of electromagnetic radiation, they eject large amounts of mass, and the ejected mass contains many products of internal ...
Kotachery, Devika Kamath
core   +1 more source

Depletion in post-AGB stars with a dusty disc. II. [PDF]

Astronomy & Astrophysics, 2004
20 pages, 22 figures, published in A& ...
Maas, T., Van Winckel, H., Evans, T. Lloyd   +2 more
openaire   +2 more sources

A Revised Understanding of Petalomonad Diversity (Petalomonadida; Euglenida) Enabled by a Cultivation Approach, With Five New Species and Two New Genera

Journal of Eukaryotic Microbiology, Volume 73, Issue 3, May/June 2026.
ABSTRACT Euglenids are an important group of free‐living phototrophic, osmotrophic, or phagotrophic protists, with most of the phylogenetic diversity represented by phagotrophs. One major subgroup of phagotrophs is the petalomonads: rigid, often relatively small cells with few pellicle strips (usually 4–8).
Won Je Lee, Gordon Lax, Elizabeth J. Weston, Julia A. Packer, Alexandra Hall, Sun Young Kim, Dong Hyuk Jeong, Alastair G. B. Simpson   +7 more
wiley   +1 more source