Results 121 to 130 of about 146 (146)

Impact of the invasive diatom species Cymbella janischii on riverine microbial biofilm communities and a potential role of bacterially produced zeatin

Journal of Phycology, Volume 62, Issue 4, Page 1221-1239, August 2026.
Abstract The diatom Cymbella janischii is an invasive species in Japan, causing nuisance blooms by forming thick mats in rivers. To date, there are no documented studies on the microbiome associations in C. janischii mats or the processes that drive bloom formation.
Eldrin D. L. R. Arguelles, Kana Mugikura, Shinya Sato   +2 more
wiley   +1 more source

Year‐round spawning increases throughput of genetic modification of common carp (Cyprinus carpio)

Journal of the World Aquaculture Society, Volume 57, Issue 4, August 2026.
Abstract The common carp (Cyprinus carpio) is an economically and ecologically significant species. It is both one of the most highly produced fish in aquaculture globally and a persistent, widespread invasive species. Research efforts focused on understanding its biology, improving traits for aquaculture, and generating next‐generation carp control ...
Julie Badger, Nicholas K. Jacob, Colby Johnson, Leland Feist, Samuel E. Erickson, Isabel Ameli, Dimitri Perusse, Alex W. Bajcz, Kieran Smith, Kaitlin Machina, Siba R. Das, Przemyslaw G. Bajer, Michael J. Smanski   +12 more
wiley   +1 more source

Raman analysis of organic refractory materials after energetic processing: Evidence for amorphous carbon on TNOs and comets

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 1994-2015, August 2026.
Abstract Amorphous carbon (αC) is found in various extraterrestrial particles, including those thought to originate from the outer Solar System. αC can form through two main processes involving C‐rich materials: exposure to energetic charged particles and thermal processing.
M. Germanà, A. Vyjidak, G. A. Baratta, B. M. Giuliano, R. G. Urso, C. Scirè, D. Fulvio, T. Grassi, P. Jusko, P. Caselli, M. E. Palumbo   +10 more
wiley   +1 more source

Nanoscale space weathering features in mature lunar soil revealed by TEM and APT

Meteoritics &Planetary Science, Volume 61, Issue 8, Page 2048-2072, August 2026.
Abstract Space weathering significantly alters the optical, chemical, and structural properties of lunar regolith at micro‐ and nanoscales; yet detailed nanoscale variability within individual soils remains underexplored. Here we apply transmission electron microscopy (TEM) and atom probe tomography to four mineral grains (olivine, ilmenite, and two ...
Jennika Greer, Alexander M. Kling, Luke Daly, Dieter Isheim, David N. Seidman, Michelle S. Thompson, Philipp R. Heck   +6 more
wiley   +1 more source

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Star Formation in Irregular Galaxies

Science, 1989
Irregular galaxies can be viewed as laboratories for studying the processes of star formation. This class of galaxy, unlike the more familiar spiral galaxies, forms stars without spiral arms and does so from a chemically less-evolved interstellar medium.
D A, Hunter, J S, Gallagher
openaire   +2 more sources

Star formation in the galaxy

Astrophysics and Space Science, 1972
A previous theory of the authors regarding the planetary system is generalized in an attempt to include star formation. It is found that the theory predicts the correct mass and radius for stellar clusters and also the general shape of the galaxy.
B. W. Pendred, I. P. Williams
openaire   +1 more source

The Evolution of the Star Formation Rate in Galaxies

Astrophysics and Space Science, 2001
The aim of this work is to provide clues for the understanding of the star formation history of the universe. We study the process of star formation in galactic objects in hierarchical clustering scenarios using hydrodynamical cosmological simulations of standard Cold Dark Matter Universe. We estimate the specific star formation rate (sSFR) of galactic
SofÍa Alejandra Cora, Hernán Muriel, Patricia Beatriz Tissera, Diego GarcÍa Lambas, Mirta Beatriz Mosconi   +4 more
openaire   +1 more source

Star formation in galaxies

Astronomical & Astrophysical Transactions, 2002
A model of dynamical and chemical evolution of spherical and disk galaxies are discussed. The star formation rate in the model is regulated through ionization of the interstellar hydrogen by massive O,B stars. The volume of a galaxy is determined by the condition of equilibrium between collisional dissipation of turbulent energy of interstellar gas and
openaire   +1 more source

Star Formation in Star Burst Galaxies

1990
The present contribution does not aim at reviewing the subject, but rather intends to present some specific observational and theoretical results. For a summary on the topic of star bursts I may refer the reader to the almost up-to-date review papers by Scalo (1987) and Telesco (1988).
openaire   +1 more source

History of Star Formation in Normal Galaxies

1989
Medium resolution spectroscopic observations have been obtained for the brighter galaxies in 6 clusters covering the redshift range 0.18 ≤ z ≤ 0.39. These observations have been analysed by an evolutionary synthesis technique tied to the VandenBerg isochrone scale, to determine the trends with redshift of the stellar age and metallicity distributions ...
openaire   +2 more sources