Results 21 to 30 of about 1,393,313 (319)

A survey of low-velocity collisional features in Saturn's F ring [PDF]

open access: yes, 2014
Small (~50km scale), irregular features seen in Cassini images to be emanating from Saturn's F ring have been termed mini-jets by Attree et al. (2012). One particular mini-jet was tracked over half an orbital period, revealing its evolution with time and
Murray, Carl D   +7 more
core   +1 more source

De Peredur à Aspremont : chassé-croisé de têtes coupées entre épopée et roman

open access: yesBabel: Littératures Plurielles, 2020
The severed heads are rarely highlighted in the chanson de egste. Aspremont, which tells the story of Charlemagne’s conquest of southern Italy, is an exception : the care and luxury of detail with which the severed heads of the defeated Saracens are ...
Alain Corbellari
doaj   +1 more source

On rings on rings [PDF]

open access: yesProceedings of the American Mathematical Society, 1964
This paper presents a solution to a popular problem in the subject of rings of analytic functions. In the late 1940's it was shown that two domains Di and D2 in the complex plane were conformally equivalent (to within a certain equivalence relation) iff the rings B(Di) and B(D2) of all bounded analytic functions defined on them were algebraically ...
openaire   +1 more source

DERIVATION ON SEVERAL RINGS

open access: yesBarekeng
Research on ring derivation is one of the studies that is quite popular among algebra lovers. The definition of the derivation on the ring is motivated by the derivation in calculus which has Leibniz's rule.
Abdiel Bellamy Thomas   +2 more
doaj   +1 more source

Features of Stabilization of Ring Blanks

open access: yesМеханика машин, механизмов и материалов, 2023
Ring blanks are in demand in various branches of mechanical engineering in the production of large-sized bearings, turbine disks, special gears and other critical products.
Vladimir E. Antonyuk   +1 more
doaj   +1 more source

Assessment of agar gel loaded with micro-emulsion for the cleaning of porous surfaces

open access: yesCeROArt : Conservation, Exposition, Restauration d'Objets d'Art, 2010
Agar gel loaded with micro-emulsion could be used to extract lipophilic materials from porous surfaces. The physical properties of the gels are good enough for a conservation work. They allow the micro-emulsion to flow on the porous surface and to wet it
Florence Gorel
doaj   +1 more source

Relationship Between a Homoderivation and a Semi-Derivation

open access: yesJournal of New Theory
Let $\wp$ be a ring. It is shown that if an additive mapping $\vartheta$ is a zero-power valued on $\wp$, then $\alpha:\wp\rightarrow\wp$ such that $\alpha=\vartheta+1$ is a bijective mapping of $\wp.$ The main aim of this study is to prove that ...
Selin Türkmen
doaj   +1 more source

Branch rings, thinned rings, tree enveloping rings [PDF]

open access: yesIsrael Journal of Mathematics, 2006
We develop the theory of ``branch algebras'', which are infinite-dimensional associative algebras that are isomorphic, up to taking subrings of finite codimension, to a matrix ring over themselves. The main examples come from groups acting on trees. In particular, for every field k we construct a k-algebra K which (1) is finitely generated and infinite-
openaire   +4 more sources

European Standard Clinical Practice Guideline and EXPeRT Recommendations for the Diagnosis and Management of Gastroenteropancreatic Neuroendocrine Neoplasms in Children and Adolescents

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Pediatric gastroenteropancreatic neuroendocrine neoplasms (GEP‐NENs) are extremely rare and clinically heterogeneous. Management has largely been extrapolated from adult practice. This European Standard Clinical Practice Guideline (ESCP), developed by the EXPeRT network in collaboration with adult NEN experts, provides (adult) evidence ...
Michaela Kuhlen   +23 more
wiley   +1 more source

Vimentin Intermediate Filament Rings Deform the Nucleus During the First Steps of Adhesion

open access: yesFrontiers in Cell and Developmental Biology, 2019
During cell spreading, cells undergo many changes to their architecture and their mechanical properties. Vimentin, as an integral part of the cell architecture, and its mechanical stability must adapt to the new state of the cell.
Emmanuel Terriac   +3 more
doaj   +1 more source

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