Results 21 to 30 of about 563,126 (344)

Conjugacy of Levi subgroups of reductive groups and a generalization to linear algebraic groups

open access: yes, 2019
We investigate Levi subgroups of a connected reductive algebraic group G, over a ground field K. We parametrize their conjugacy classes in terms of sets of simple roots and we prove that two Levi K-subgroups of G are rationally conjugate if and only if ...
Solleveld, Maarten
core   +1 more source

Levy geometric graphs

open access: yesPhysical Review E, 2022
We present a new family of graphs with remarkable properties. They are obtained by connecting the points of a random walk when their distance is smaller than a given scale. Their degree (number of neighbors) does not depend on the graph's size but only on the considered scale. It follows a Gamma distribution and thus presents an exponential decay. Levy
S. Plaszczynski   +4 more
openaire   +4 more sources

Testimonianze di Vittoria, Lea e Rachele Levi e della signora Montuoro

open access: yesBalthazar, 2021
Testimonianze di Vittoria Levi in Veniselli, di Lea e Rachele Levi, nate a Rodi e deportate ad Auschwitz, Willistadt, Theresienstadt, e della signora Montuoro, deportata a Ravensbrück.
Patrizia Pozzi
doaj   +1 more source

The role of peripheral immunity in ALS: a population‐based study

open access: yesAnnals of Clinical and Translational Neurology, 2023
Background Systemic inflammation has been proposed as a relevant mechanism in amyotrophic lateral sclerosis (ALS). Still, comprehensive data on ALS patients' innate and adaptive immune responses and their effect on the clinical phenotype are lacking ...
Maurizio Grassano   +17 more
doaj   +1 more source

The Impact of SARS-CoV-2 Infection on Youth Mental Health: A Narrative Review

open access: yesBiomedicines, 2022
Background: COVID-19 pandemic has affected the physical health, psychological wellbeing, and mental health of the whole population. Young people are among those most at risk of developing mental health symptoms or disorders related to the pandemic ...
Claudio Brasso   +4 more
doaj   +1 more source

Convergent normal form for real hypersurfaces at generic Levi degeneracy [PDF]

open access: yes, 2014
We construct a complete convergent normal form for a real hypersurface in $\CC{N},\,N\geq 2$ at generic Levi degeneracy. This seems to be the first convergent normal form for a Levi-degenerate hypersurface.
Kossovskiy, Ilya, Zaitsev, Dmitri
core  

Time after time – circadian clocks through the lens of oscillator theory

open access: yesFEBS Letters, EarlyView.
Oscillator theory bridges physics and circadian biology. Damped oscillators require external drivers, while limit cycles emerge from delayed feedback and nonlinearities. Coupling enables tissue‐level coherence, and entrainment aligns internal clocks with environmental cues.
Marta del Olmo   +2 more
wiley   +1 more source

Sequence determinants of RNA G‐quadruplex unfolding by Arg‐rich regions

open access: yesFEBS Letters, EarlyView.
We show that Arg‐rich peptides selectively unfold RNA G‐quadruplexes, but not RNA stem‐loops or DNA/RNA duplexes. This length‐dependent activity is inhibited by acidic residues and is conserved among SR and SR‐related proteins (SRSF1, SRSF3, SRSF9, U1‐70K, and U2AF1).
Naiduwadura Ivon Upekala De Silva   +10 more
wiley   +1 more source

Recurrent cancer‐associated ERBB4 mutations are transforming and confer resistance to targeted therapies

open access: yesMolecular Oncology, EarlyView.
We show that the majority of the 18 analyzed recurrent cancer‐associated ERBB4 mutations are transforming. The most potent mutations are activating, co‐operate with other ERBB receptors, and are sensitive to pan‐ERBB inhibitors. Activating ERBB4 mutations also promote therapy resistance in EGFR‐mutant lung cancer.
Veera K. Ojala   +15 more
wiley   +1 more source

Morphologie et dynamique des mythes : une lecture catastrophiste de Lévi-Strauss

open access: yesEstudos Semióticos, 2023
Notre « ré-analyse » de l’oeuvre mythologique de Lévi-Strauss part de la sémantique catastrophiste selon René Thom. Après un résumé des résultats majeurs dans l’analyse des mythes chez Lévi-Strauss et la considération des aspects dynamiques, telle la ...
Wolfgang Wildgen
doaj  

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