Results 81 to 90 of about 1,704 (212)
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 7, July 2025.Abstract Deciphering Earth's earliest geodynamic processes requires temporally constrained chemical and structural data from rare exposures of ancient rocks. One of the most well‐studied of these exposures is the Acasta Gneiss Complex (AGC) in the Northwest Territories, Canada, which contains the oldest known felsic rocks on Earth.
Omar Khalil Droubi +6 more
wiley +1 more source
Juxtaposition of Melt Impregnation and High-Temperature Shear Zones in the Upper Mantle; Field and Petrological Constraints from the Lanzo Peridotite (Northern Italy) [PDF]
, 2017 Results of a field and microstructural study between the northern and the central bodies of the Lanzo plagioclase peridotite massif (NW Italy) indicate that the spatial distribution of deformation is asymmetric across kilometre-scale mantle shear zones ...
Kaczmarek, Mary-Alix, Müntener, Othmar
core
Sheared peridotites from Kimberley (South Africa): Ti-enrichment of olivine neoblasts through a 1200°C hot metasomatic agent [PDF]
, 2021 Catharina Heckel +3 more
openalex +1 more source
The FEBS Journal, Volume 292, Issue 11, Page 2715-2736, June 2025.The silencing of transposable elements is mediated by piRNAs through post‐transcriptional and transcriptional regulation. In Drosophila, piRNAs are processed within unique non‐membrane structures: nuage in germline cells and Yb bodies in somatic gonadal cells.
Ritsuko Suyama, Toshie Kai
wiley +1 more source
Physiological ReportsMelatonin is a multifunctional biomolecule with demonstrated stimulatory, inhibitory, and antioxidant effects, including both receptor‐mediated and receptor‐independent mechanisms of action.
Simon C. Beeching +2 more
doaj +1 more source
dlx and sp6-9 Control optic cup regeneration in a prototypic eye. [PDF]
PLoS Genetics, 2011 Optic cups are a structural feature of diverse eyes, from simple pit eyes to camera eyes of vertebrates and cephalopods. We used the planarian prototypic eye as a model to study the genetic control of optic cup formation and regeneration.
Sylvain W Lapan, Peter W Reddien
doaj +1 more source
Geochemistry, Geophysics, Geosystems, Volume 26, Issue 5, May 2025.Abstract Detailed geochronology from two compositionally distinct generations of dikes and sills intruded into the Alta metamorphic aureole, north‐central Utah, complement previous geochronologic studies from the Alta stock, providing information on the timing of magmatism and the nature of emplacement.
C. J. Beno +5 more
wiley +1 more source
Embryonic origin of adult stem cells required for tissue homeostasis and regeneration
eLife, 2017 Planarian neoblasts are pluripotent, adult somatic stem cells and lineage-primed progenitors that are required for the production and maintenance of all differentiated cell types, including the germline.
Erin L Davies +9 more
doaj +1 more source
Silver-Catalyzed C-C Bond Formation between Methane and Ethyl Diazoacetate in Supercritical CO2 [PDF]
, 2011 Even in the context of hydrocarbons’ general resistance to selective functionalization, methane’s volatility and strong bonds pose a particular challenge.
Asensio, Gregorio +10 more
core +1 more source
Vertical Cancer Transmission via Asexual Fragmentation and Associated Cancer Prevalence
Evolutionary Applications, Volume 18, Issue 5, May 2025.ABSTRACT While sexual reproduction is a general feature of animals, fissiparity and budding are relatively uncommon modes of asexual reproduction by which a fragment from a parent becomes an independent organism. Unlike unitary development, tumor cells can be included in the detached fragment destined to become offspring.
Jibeom Choi
wiley +1 more source