Poitiers, France

University of Poitiers

www.univ-poitiers.fr
Poitiers, France

The University of Poitiers is a university in Poitiers, France. It is a member of the Coimbra Group, as one of the oldest universities of Europe. Wikipedia.

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Patent
French National Center for Scientific Research and University of Poitiers | Date: 2015-10-14

The invention concerns a device forming a robotic finger comprising a base (100) forming a palm, at least one knuckle (500, 700, 900) articulated on the base (100) about two separate joints (200, 400) non-parallel to each other, at least two actuators (110, 120, 130, 140) and cable-linking means (112, 122) respectively linking the two actuators (110, 120) to drive elements of said two joints (200, 400), characterised in that the device comprises guide means (150, 151, 152) designed to guide the cables involved in the control of each joint (400, 600, 800) located after the first joint (200) on the base (100), in a common plane passing through the axis (202) of said first joint (200).


Patent
French National Center for Scientific Research and University of Poitiers | Date: 2017-08-23

The invention concerns a device forming a robotic finger comprising a base (100) forming a palm, at least one knuckle (500, 700, 900) articulated on the base (100) about two separate joints (200, 400) non-parallel to each other, at least two actuators (110, 120, 130, 140) and cable-linking means (112, 122) respectively linking the two actuators (110, 120) to drive elements of said two joints (200, 400), characterised in that the device comprises guide means (150, 151, 152) designed to guide the cables involved in the control of each joint (400, 600, 800) located after the first joint (200) on the base (100), in a common plane passing through the axis (202) of said first joint (200).


Patent
Rhodia, French National Center for Scientific Research and University of Poitiers | Date: 2014-02-28

Providing a catalytic process for preparing 1,4-diketone compounds from furanic compounds and their precursors in a liquid medium, using an acid catalytic system and optionally in the presence of hydrogen and a hydrogenation catalyst, wherein the acidic catalytic system comprises a solid acid catalyst or a mixture of water and CO_(2).


Patent
French National Center for Scientific Research and University of Poitiers | Date: 2015-03-27

The present invention relates to nanoparticles comprising at least one platinum compound comprising at least platinum and at least one rare earth, said rare earth being present in an oxidized form, notably useful for the catalysis of the reduction reaction of dioxygen (RRO) in an acid medium, and methods for the preparation thereof. The invention also relates to a cathode comprising said nanoparticles and its use notably in a hydrogen fuel cell, also called PEMFC.


Patent
French National Center for Scientific Research and University of Poitiers | Date: 2015-02-06

The present invention relates to the field of cancer and inflammatory diseases. More particularly, it aims to provide, for these purposes, novel conjugated forms of active ingredients belonging to the dolastatin family and having the formula as follows: It is also directed towards prodrug forms of these conjugates.


Duclohier H.,University of Poitiers
Current Pharmaceutical Design | Year: 2010

In this review, the antimicrobial properties of a number of peptides are described. We first deal with helical linear peptides such as the well-known gramicidin, magainins, melittin, and other less well-known or more recently discovered peptides. Then, betasheet peptides (defensins isolated from insects and also from mammalian tissues) and cyclic peptides like amphotericin B are described before the properties of peptaibols (containing the non-coded amino acid Aib) are discussed. Alamethicin remains the prototype of this class and its biophysical properties (mostly focussing on channel- or pore-formation in planar lipid bilayers) were and are still intensively studied. On the whole, we show how biophysical studies can explain the antimicrobial action of this ever expanding family of peptides. © 2010 Bentham Science Publishers Ltd.


Dietrich A.,American University of Beirut | Audiffren M.,University of Poitiers
Neuroscience and Biobehavioral Reviews | Year: 2011

We present here a comprehensive, neurocognitive model to account for the psychological consequences of acute exercise. There is a substantial amount of disparate research and the proposed mechanistic explanation meaningfully integrates this body of brain and behavioral data into a single, unified model. The model's central feature is a cascading, two-step process. First, exercise engages arousal mechanisms in the reticular-activating system. This activation process, which involves a number of neurotransmitter systems, has several interrelated effects on cognition and emotion but, in general, has evolved to facilitate implicit information processing. Second, exercise disengages the higher-order functions of the prefrontal cortex. This deactivation process, which is caused in part by resource limitations, also has several interrelated effects but, in general, has evolved to keep the inefficient explicit system and unhelpful emotional processes from compromising the implicit system's functioning when optimal motor execution is needed most. In this article, we review evidence in support of this reticular-activating hypofrontality (RAH) model of acute exercise and place it into a larger evolutionary context. © 2011 Elsevier Ltd.


Gaillard A.,University of Poitiers | Jaber M.,University of Poitiers
Trends in Neurosciences | Year: 2011

Cell replacement therapy has been proposed as a means to replace lost dopaminergic neurons in Parkinson's disease (PD). In most studies, the transplanted cells have been placed within the target site, the striatum, and not within the lesioned site, the substantia nigra, as the adult nigrostriatal pathway was thought to constitute a non-permissive environment for long distance axonal outgrowth of transplanted neuroblasts. Here, we discuss recent findings showing that intranigral transplanted dopaminergic neuroblasts can form axonal projections to the striatum, resulting in increased striatal dopamine levels and ameliorating behavioral deficits in animal models of PD. Such findings have raised new hopes and opened new avenues for cell replacement therapy in patients with PD. © 2011 Elsevier Ltd.


Jordan P.,University of Poitiers | Colonius T.,California Institute of Technology
Annual Review of Fluid Mechanics | Year: 2013

Turbulent jet noise is a controversial fluid mechanical puzzle that has amused and bewildered researchers for more than half a century. Whereas numerical simulations are now capable of simultaneously predicting turbulence and its radiated sound, the theoretical framework that would guide noise-control efforts is incomplete. Wave packets are intermittent, advecting disturbances that are correlated over distances far exceeding the integral scales of turbulence. Their signatures are readily distinguished in the vortical, turbulent region; the irrotational, evanescent near field; and the propagating far field. We review evidence of the existence, energetics, dynamics, and acoustic efficiency of wave packets. We highlight how extensive data available from simulations and modern measurement techniques can be used to distill acoustically relevant turbulent motions. The evidence supports theories that seek to represent wave packets as instability waves, or more general modal solutions of the governing equations, and confirms the acoustic importance of these structures in the aft-angle radiation of high subsonic and supersonic jets. The resulting unified view of wave packets provides insights that can help guide control strategies. Copyright © 2013 by Annual Reviews. All rights reserved.


Patent
French National Center for Scientific Research, University of Poitiers and Valagro Carbone Renouvelable Poitou Charentes | Date: 2016-07-26

The present invention relates to a process for preparing a polymer/biological entities alloy, comprising a step of mixing a polymer and biological entities that degrade it, during a heat treatment, said heat treatment being performed at a temperature T above room temperature and said biological entities being resistant to said temperature T, characterized in that said biological entities are chosen from enzymes that degrade said polymer and microorganisms that degrade said polymer.

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