Results 61 to 70 of about 6,382 (184)

Poincaré and the idea of a group [PDF]

open access: yes, 2012
In many different fields of mathematics and physics Poincaré found many uses for the idea of a group, but not for group theory. He used the idea in his work on automorphic functions, in number theory, in his epistemology, Lie theory (on the so-called ...
Gray, Jeremy
core  

Ferromagnetism and orbital order in a topological ferroelectric

open access: yes, 2012
We explore via density functional calculations the magnetic doping of a topological ferroelectric as an unconventional route to multiferroicity. Vanadium doping of the layered perovskite La$_{2}$Ti$_{2}$O$_{7}$ largely preserves electric polarization and
Alessio Filippetti   +3 more
core   +1 more source

Selective transmission of R5 HIV-1 variants: where is the gatekeeper?

open access: yesJournal of Translational Medicine, 2011
To enter target cells HIV-1 uses CD4 and a coreceptor. In vivo the coreceptor function is provided either by CCR5 (for R5) or CXCR4 (for X4 HIV-1). Although both R5 and X4 HIV-1 variants are present in body fluids (semen, blood, cervicovaginal and rectal
Grivel Jean-Charles   +2 more
doaj   +1 more source

Abstract Book: 25th Congress of the European Hematology Association Virtual Edition, 2020

open access: yes, 2020
HemaSphere, Volume 4, Issue S1, Page 1-1168, June 2020.
wiley   +1 more source

Héritages et influences contemporaines des anciens ouvrages de navigation de la Loire moyenne (France)

open access: yesVertigO, 2018
Dikes -called “duits” and “chevrette”- impregnate strongly the fluvial landscape of the Loire Valley through their ubiquity and their integration into structures of the old port cities.
Stéphane Grivel    +6 more
doaj   +1 more source

Pre-eclampsia toxaemia [PDF]

open access: yes, 2013
A 33 year old primagravida rhesus positive woman was referred to the Emergency Department by her family doctor at 27 weeks gestation. At 25 weeks of gestation, she had been diagnosed with hypertension and was started on labetalol therapy.
Bugeja, Roberta, Galdes, Caroline
core  

Naturel, rationnel, utile : penser l’optimisation avec quelques utopies des Lumières

open access: yesEtudes Epistémè
Optimum is a theoretical locus where the three concepts of the natural, the rational and the useful converge in the 18th century. This article shows that different utopian discourses of the French Enlightenment are characterized by the distinct ways in ...
Mitia Rioux-Beaulne
doaj   +1 more source

Addition of thrombin reduces the recovery of extracellular vesicles from blood plasma

open access: yesJournal of Circulating Biomarkers, 2016
Extracellular vesicles (EVs) are widely studied as a system of intercellular communication, as markers of various diseases, as well as a vehicle for delivery of various bioactive molecules to various cells.
Anush Arakelyan   +5 more
doaj   +1 more source

Large critical current density improvement in Bi-2212 wires through groove-rolling process

open access: yes, 2013
Recently the interest about Bi-2212 round wire superconductor for high magnetic field use has been enhancing despite the fact that an increase of the critical current is still needed to boost its successful use in such applications.
Bernini, Cristina   +6 more
core   +3 more sources

Extracellular vesicles-mediated intercellular communication: roles in the tumor microenvironment and anti-cancer drug resistance

open access: yesMolecular Cancer, 2019
The tumor microenvironment represents a complex network, in which tumor cells not only communicate with each other but also with stromal and immune cells.
Selma Maacha   +6 more
doaj   +1 more source

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