Results 41 to 50 of about 695,293 (298)

Chaotic Spiral Galaxies

open access: yes, 2011
We study the role of asymptotic curves in supporting the spiral structure of a N-body model simulating a barred spiral galaxy. Chaotic orbits with initial conditions on the unstable asymptotic curves of the main unstable periodic orbits follow the shape ...
Contopoulos, George, Harsoula, Mirella
core   +1 more source

Reciprocal control of viral infection and phosphoinositide dynamics

open access: yesFEBS Letters, EarlyView.
Phosphoinositides, although scarce, regulate key cellular processes, including membrane dynamics and signaling. Viruses exploit these lipids to support their entry, replication, assembly, and egress. The central role of phosphoinositides in infection highlights phosphoinositide metabolism as a promising antiviral target.
Marie Déborah Bancilhon, Bruno Mesmin
wiley   +1 more source

Fabriques de Vania

open access: yesCarnets, 2018
Vania is the fifth show of a cycle which Eric Lacascade has devoted to the works of Anton Tchekhov. If his process of creation lies in that attempt in numerous slices,,the same actors appearing all along the theatrical adventure,the memorized traces of ...
Sophie Lucet
doaj   +1 more source

An intracellular transporter mitigates the CO2‐induced decline in iron content in Arabidopsis shoots

open access: yesFEBS Letters, EarlyView.
This study identifies a gene encoding a transmembrane protein, MIC, which contributes to the reduction of shoot Fe content observed in plants under elevated CO2. MIC is a putative Fe transporter localized to the Golgi and endosomal compartments. Its post‐translational regulation in roots may represent a potential target for improving plant nutrition ...
Timothy Mozzanino   +7 more
wiley   +1 more source

Le temps éclaté : Why Be Happy When You Could Be Normal? De Jeanette Winterson

open access: yesSillages Critiques, 2015
This article reads Why Be Happy When You Could Be Normal? in the light of Oranges Are not the Only Fruit. To do so, it relies on the temporal orientation of trauma theory and tries to demonstrate how Winterson’s oeuvre as a whole is dominated by the ...
Jean-Michel Ganteau
doaj   +1 more source

The Comparative Study of "Spiral" Motif in Islamic and Environmental Art [PDF]

open access: yesJilvah-i hunar, 2019
The spiral pattern has been used as a valuable and important decorative element in the ornamentation, referred to as "Arabesque". The spiral or arabesque movement was not just for decorating different types of building surfaces, but also had sacred signs.
F. Ghaemi Manesh
doaj   +1 more source

Polygonal Structures in the Gaseous Disk: Numerical Simulations

open access: yes, 2011
The results of numerical simulations of a gaseous disk in the potential of a stellar spiral density wave are presented. The conditions under which straightened spiral arm segments (rows) form in the gas component are studied. These features of the spiral
A. D. Chernin   +50 more
core   +1 more source

Phosphatidylinositol 4‐kinase as a target of pathogens—friend or foe?

open access: yesFEBS Letters, EarlyView.
This graphical summary illustrates the roles of phosphatidylinositol 4‐kinases (PI4Ks). PI4Ks regulate key cellular processes and can be hijacked by pathogens, such as viruses, bacteria and parasites, to support their intracellular replication. Their dual role as essential host enzymes and pathogen cofactors makes them promising drug targets.
Ana C. Mendes   +3 more
wiley   +1 more source

Solar symbolism in the cultures of Eurasia. Archetype and chronology of formation [PDF]

open access: yesCultural Heritage and Modern Technologies
The symbolism of the spiral and the meander is well known from the ornaments on Minoan and Mycenaean artifacts, while the roots of this symbolism can be traced chronologically much deeper than these cultures and have been fixed since the Paleolithic era.
Parshikov S.A., Gienko E.G.
doaj   +1 more source

M101: The Pinwheel Galaxy [PDF]

open access: yes, 2006
This Hubble Space Telescope image of M101 showcases a spiral galaxy's well-known features. The text describes the features that are common to all spiral galaxies.

core  

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