Results 51 to 60 of about 2,214 (245)

Preperihelion CN Production Rate of Interstellar Comet 3I/ATLAS

The Astrophysical Journal Letters
We present spectroscopic observations of the third interstellar comet 3I/ATLAS obtained with the DOLORES instrument on the 3.58 m Telescopio Nazionale Galileo on 2025 August 16 ( r _h  = 2.98 au).
M. Lazzarin, A. C. Mura, F. La Forgia, G. Cremonese, P. Cambianica, G. Munaretto, A. Farina, E. Mazzotta Epifani, S. Ieva, E. Dotto   +9 more
doaj   +1 more source

Romanticism’s Longue Durée: the Woodstock Festival and History’s Journey Back to the Garden

Sillages Critiques
The Woodstock Festival of August 1969 was an inherently Romantic event, the apotheosis of spectacular countercultural aesthetics in the form of music, audience, dress, undress, discourses of freedom and rebellion, communal coexistence, social cooperation,
Eric Rosenberg
doaj   +1 more source

Challenges and Future Directives of Synthetic Biology in Engineering Plant–Microbe Partnerships for Sustainable Agriculture

Biotechnology and Bioengineering, EarlyView.
ABSTRACT Synthetic biology has recently proven to be a valuable tool for enhancing agriculture even in the face of environmental and biological stresses. Understanding the challenges that militate synthetic biology will assist in ensuring safe, stable, and scalable crop production.
Ben Jesuorsemwen Enagbonma, Rebaona Reaobaka Molefe‐Madlaliso, Alaba Adewole Adebayo, Oghoye Priscilla Oyedoh, Godfrey Okainemen Oribhabor, Oluwaseun Emmanuel Shittu, Olubukola Oluranti Babalola   +6 more
wiley   +1 more source

Oocyte–cumulus cell interaction: a key factor in early embryo development

Biological Reviews, EarlyView.
ABSTRACT The evaluation of oocyte competence is a fundamental step in achieving successful outcomes following assisted reproduction techniques (ART). At present, however, conventional oocyte maturation assessment is carried out by morphological observation, which is a subjective method that does not consider molecular features.
Marc Torres‐Garrido, Marc Yeste, Yentel Mateo‐Otero   +2 more
wiley   +1 more source

Noble Gas Planetology and the Xenon Clouds of Uranus

The Planetary Science Journal
Noble gases provide tracers of cosmic provenance that are accessible to a future Uranus atmospheric probe. Argon and krypton are expected to be well mixed on Uranus with respect to H _2 and He, although condensation at the winter pole may be possible ...
Kevin Zahnle
doaj   +1 more source

The Rich Chemistry of Ionized Methanol With Sulfur Dioxide: Pathways to Prebiotic and Elusive Species in Earth's Atmosphere and Space

Chemistry – A European Journal, EarlyView.
The reaction between the methanol radical cation and sulfur dioxide is remarkably fast and forms several ionic and neutral products (HOSOH+, CH2OSO+, CH2OH+, CH2O, H2O, HSO2). The chemistry goes beyond simple proton or hydrogen transfer, revealing a close interaction between the two species, relevant to atmospheric and astrochemical environments where ...
Mauro Satta, Daniele Catone, Mattea Carmen Castrovilli, Antonella Cartoni   +3 more
wiley   +1 more source

Classification of Subgroups of Solar and Heliospheric Observatory (SOHO) Sungrazing Kreutz Comet Group by the Density-Based Spatial Clustering of Applications with Noise (DBSCAN) Clustering Algorithm

Journal of Astronomy and Space Sciences
Sungrazing comets, known for their proximity to the Sun, are traditionally classified into broad groups like Kreutz, Marsden, Kracht, Meyer, and non-group comets.
Ulkar Karimova, Yu Yi
doaj   +1 more source

Investigating the Cytoskeleton of DRGs Using Cryo‐Electron Microscopy and Deep Learning

Cytoskeleton, EarlyView.
ABSTRACT We describe a method for determining the ultrastructural organization of axons and varicosities of cultured dorsal root ganglion (DRG) neurons using cryogenic electron microscopy (cryo‐EM). Cryo‐EM reveals the dimensions, proximity, and overall organization of biological specimens in a near‐native state, avoiding artifacts of fixation and ...
M. Neal Waxham, Mihir Relan, Matthew T. Swulius, Andrea K. H. Stavoe   +3 more
wiley   +1 more source

On the Problem of the Origin of Comets [PDF]

Symposium - International Astronomical Union, 1972
The various hypotheses on the origin of comets are surveyed, with particular reference to the phenomenon of comet-streaming, as revealed by statistical analysis of the directions of the perihelia of cometary orbits. The difficulties of reconciling comet-streaming with any of the hypotheses of cometary origin is pointed out. It is shown that in the case
openaire   +1 more source

Visualizing Specific Tubulin Isotypes and Pathogenic Variants in Cellular Microtubule Arrays

Cytoskeleton, EarlyView.
ABSTRACT Eukaryotic cells depend on dynamic microtubule arrays to execute a wide range of functions vital for life. These microtubule filaments are formed through the polymerization of α/β‐tubulin proteins, which can be generated from numerous tubulin genes, or isotypes.
Sareen Fiaz, Benjamin Powers, Jayne Aiken   +2 more
wiley   +1 more source