Results 221 to 230 of about 13,091 (256)

Environmental factors affect the condition of critically endangered freshwater pearl mussels by disrupting terrestrial–aquatic resource connectivity

Conservation Science and Practice, Volume 8, Issue 2, February 2026.
This regional‐scale field study shows that critically threatened freshwater pearl mussels rely substantially on terrestrial organic matter, indicating strong connectivity between terrestrial and aquatic ecosystems. However, human pressures at the catchment scale reduced this resource connectivity.
Mahsa Hajisafarali, Sabrina Nykänen, Jouni Taskinen, Matthew R. D. Cobain, Jonna Kuha, Panu Oulasvirta, Katariina Rautiainen, Asta Vaso, Mikko Kiljunen   +8 more
wiley   +1 more source

Secondary Somatosensory Cortex Is Required for Learning but Not Execution of a Tactile Discrimination

European Journal of Neuroscience, Volume 63, Issue 3, February 2026.
The relationship between primary somatosensory cortex (S1) and secondary somatosensory cortex (S2) during learning is not clear. Here, we show that when confronted with a texture discrimination using the whiskers, S2 is required during learning but not after learning.
Anurag Pandey, Sungmin Kang, Nicole Pacchiarini, Hanna Wyszynska, Zena Masseri, Joseph O'Neill, Robert C. Honey, Kevin Fox   +7 more
wiley   +1 more source

Thylakoids reorganization enables driving photosynthesis under far‐red light in the microalga Nannochloropsis gaditana

New Phytologist, Volume 249, Issue 4, Page 1785-1799, February 2026.
Summary Oxygenic photosynthesis is driven by visible light in most photosynthetic organisms, with exceptions in a few cyanobacteria and microalgae species, which can extend the light absorption to far‐red (FR) wavelengths, by synthesizing new pigments or shifting the antennae absorption range beyond 700 nm.
Elisabetta Liistro, Mariano Battistuzzi, Mattia Storti, Beatrice Boccia, Lorenzo Cocola, Giorgio Perin, Tomas Morosinotto, Nicoletta La Rocca   +7 more
wiley   +1 more source

The radial distribution of blue straggler stars and the nature of their progenitors [PDF]

, 2006
M. Mapelli, S. Sigurdsson, F. R. Ferraro, M. Colpi, A. Possenti, B. Lanzoni   +5 more
openalex   +1 more source

Collisions of Main-Sequence Stars and the Formation of Blue Stragglers in Globular Clusters

, 1995
James C. Lombardi, Frederic A. Rasio, S. L. Shapiro   +2 more
openalex   +1 more source

AGES OF YOUNG STAR CLUSTERS, MASSIVE BLUE STRAGGLERS, AND THE UPPER MASS LIMIT OF STARS: ANALYZING AGE-DEPENDENT STELLAR MASS FUNCTIONS [PDF]

, 2013
F. R. N. Schneider, R. G. Izzard, S. E. de Mink, N. Langer, A. Stolte, A. de Koter, V. V. Gvaramadze, B. Hußmann, A. Liermann, H. Sana   +9 more
openalex   +1 more source

CCD Photometry of the Globular Cluster M53. I. Color-Magnitude Data and Blue Straggler Stars [PDF]

, 1998
Soo‐Chang Rey, Young‐Wook Lee, Yong-Ik Byun, Mun‐Suk Chun   +3 more
openalex   +1 more source

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Are All Blue Stragglers Ap Stars?

International Astronomical Union Colloquium, 1976
SummaryA list of open clusters with blue stragglers studied for Ap characteristics is presented. In addition to previously published results new spectroscopic data are given of blue stragglers in the open cluster IC 4756 derived from ESO spectrograms taken in 1973. Preliminary conclusions concerning the status of Ap stars and blue stragglers are drawn.
E.S. Pendl, W. Seggewiss
openaire   +1 more source

Predictions of gravity mode pulsations of collisional blue straggler stars in globular clusters

Astronomy & Astrophysics
Blue straggler stars (BSSs) are exotic objects, which, being the results of processes such as mass transfer, mergers, or collisions, are considered key objects in the study of their host clusters' dynamics.
L. Briganti, W. E. V. Rossem, A. Miglio, A. Bragaglia, M. Matteuzzi   +4 more
semanticscholar   +1 more source

The “dynamical clock”: dating the internal dynamical evolution of star clusters with Blue Straggler Stars

Rendiconti Lincei SCIENZE FISICHE E NATURALI, 2020
We discuss the observational properties of a special class of objects (the so-called “Blue Straggler Stars”, BSSs) in the framework of using this stellar population as probe of the dynamical processes occurring in high-density stellar systems.
F. Ferraro, B. Lanzoni, E. Dalessandro
semanticscholar   +1 more source