Results 51 to 60 of about 843 (130)

Fluctuations and differential contraction during regeneration of Hydra vulgaris tissue toroids

open access: yesNew Journal of Physics, 2013
We studied regenerating bilayered tissue toroids dissected from Hydra vulgaris polyps and relate our macroscopic observations to the dynamics of force-generating mesoscopic cytoskeletal structures.
Michael Krahe   +6 more
doaj   +1 more source

Non-Invasive Spectral Phenotyping Methods can Improve and Accelerate Cercospora Disease Scoring in Sugar Beet Breeding

open access: yesAgriculture, 2014
Breeding for Cercospora resistant sugar beet cultivars requires field experiments for testing resistance levels of candidate genotypes in conditions that are close to agricultural cultivation.
Marcus Jansen   +4 more
doaj   +1 more source

The Interconnected Magmatic Plumbing System of the Natron Rift

open access: yesGeophysical Research Letters, 2022
Understanding the magmatic plumbing system of rift volcanoes is essential when examining the interplay between magmatic and tectonic forces. Recent seismicity, volcanic activity, magma emplacement, and volatile release make the Natron basin the ideal ...
M. C. Reiss, L. DeSiena, J. D. Muirhead
doaj   +1 more source

Microanatomy and growth of the mesosaurs Stereosternum tumidum and Brazilosaurus sanpauloensis (Reptilia, Parareptilia) [PDF]

open access: yesFossil Record, 2019
Histology and microanatomy of vertebrae, ribs, haemal arch, and humeri and femora of 10 individuals of Stereosternum and two dorsal ribs of 1 individual of Brazilosaurus were studied.
N. Klein   +6 more
doaj   +1 more source

Hochdrucksynthese von Antimonnitrid Sb3N5 und Polynitrid Sb2N8 mit einfach gebundenen N810− Ketten

open access: yesAngewandte Chemie, Volume 138, Issue 6, 2 February 2026.
Hochdrucksynthesen zwischen Antimon und molekularem Stickstoff in einer laserbeheizten Diamantstempelzelle führten zur Bildung von oC32‐Sb3N5 (51(1) GPa) und mP20‐Sb2(N8) (> 100 GPa). Beide Phasen wurden mittels Einkristall‐Röntgenmikrodiffraktion identifiziert und durch Berechnungen mittels Dichtefunktionaltheorie vollständig bestätigt.
Lukas Brüning   +8 more
wiley   +1 more source

Rapid surficial oxidation of synthetic Fe‐Ti oxides at high temperature: Observations and consequences for magnetic measurements

open access: yesGeochemistry, Geophysics, Geosystems, 2012
Synthetic polycrystalline samples of Fe‐Ti oxides (titanomagnetite, Tmtss; ilmenite‐hematitess, Ilmss; pseudobrookitess, Psbss) are very sensitive to changes in the redox conditions at high temperatures, either during synthesis experiments or during ...
Dominique Lattard   +2 more
doaj   +1 more source

Charakterisierung der N‐Methyltransferase SgPsmC: Anwendung in der kinetischen Racematspaltung von Pyrroloindolinen

open access: yesAngewandte Chemie, Volume 138, Issue 2, 9 January 2026.
Die N‐Methyltransferase SgPsmC wurde charakterisiert und für die kinetische Racematspaltung von Pyrroloindolinen verwendet. Die Substitution an 3a‐Position erwies sich als eine Hauptdeterminante für die Enantioselektivität des Enzyms. Die Reaktion wurde mit einer Methionin‐Adenosyl‐Transferase gekoppelt, um S‐Adenosylmethionin in situ zu erzeugen und ...
Benjamin Panagiotis Chapple   +7 more
wiley   +1 more source

Caenogastropods and heterobranch gastropods from the Hettangian deposits of Luxembourg: palaeobiogeography and Early Jurassic faunal recovery in the western Tethys

open access: yesPapers in Palaeontology, Volume 12, Issue 1, January/February 2026.
Abstract We describe the Hettangian Caenogastropoda and Heterobranchia of the Luxembourg Sandstone Formation, a wedge of clastic sediments deposited along the eastern margin of Paris Basin during the Early Jurassic. Five new genera and 11 new species are erected: Bourguetia bipartita sp. nov., Globularia delsatei sp. nov., Oonia feidtorum sp.
Stefano Monari   +3 more
wiley   +1 more source

The Gannon Storm's Impact on Electric and Magnetic Fields in Italy: A Regional Perspective

open access: yesSpace Weather, Volume 24, Issue 1, January 2026.
Abstract The intense May 2024 geomagnetic storm provided an opportunity to conduct the first analysis of geoelectric hazards in Italy. Data from three geomagnetic observatories and a magnetotelluric station were analyzed to examine the spatiotemporal evolution of storm‐induced variations.
Giulia Pignatiello   +5 more
wiley   +1 more source

Opportunistic Constant Target Matching—A New Method for Satellite Intercalibration

open access: yesEarth and Space Science, 2020
Opportunistic constant target matching is a new method for satellite intercalibration. It solves a long‐standing issue with the traditional simultaneous nadir overpass (SNO) method, namely, that it typically provides only data points with cold brightness
Stefan A. Buehler   +5 more
doaj   +1 more source

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