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Showing 1 to 12 of 134 entries
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Scaling Laws and Critical Properties for fcc and hcp Metals.

The journal of physical chemistry. B

Desgranges C, Widhalm L, Delhommelle J.
PMID: 27228416
J Phys Chem B. 2016 Jun 16;120(23):5255-61. doi: 10.1021/acs.jpcb.6b04121. Epub 2016 Jun 07.

The determination of the critical parameters of metals has remained particularly challenging both experimentally, because of the very large temperatures involved, and theoretically, because of the many-body interactions that take place in metals. Moreover, experiments have shown that these...

Structural Changes in the Local Environment of Uranium Atoms in the Three Phases of U4O9.

Inorganic chemistry

Desgranges L, Baldinozzi G, Simeone D, Fischer HE.
PMID: 27437727
Inorg Chem. 2016 Aug 01;55(15):7485-91. doi: 10.1021/acs.inorgchem.6b00654. Epub 2016 Jul 20.

The crystal structure of U4O9 remains an enigma because of its differences with U(4+) and U(5+) coordination polyhedral mixtures, as shown in the XANES experimental results. To better understand this crystal structure, its diffraction pattern was measured at seven...

Insights into the molecular mechanism underlying polymorph selection.

Journal of the American Chemical Society

Desgranges C, Delhommelle J.
PMID: 17117858
J Am Chem Soc. 2006 Nov 29;128(47):15104-5. doi: 10.1021/ja0670310.

We use molecular simulations to study polymorph selection during the crystallization of charge-stabilized colloidal suspension. By modifying the conditions of crystallization, we invert the stability of two polymorphs and induce the formation of crystallites whose structure is predominantly that...

Molecular insight into the pathway to crystallization of aluminum.

Journal of the American Chemical Society

Desgranges C, Delhommelle J.
PMID: 17503827
J Am Chem Soc. 2007 Jun 06;129(22):7012-3. doi: 10.1021/ja072260n. Epub 2007 May 16.

No abstract available.

Management of infected vascular prostheses. The vascular homograft revisited.

Texas Heart Institute journal

Julia P, Jebara VA, Desgranges P, Dervanian P, Uva Mde S, Acar C, Fabiani JN.
PMID: 15227413
Tex Heart Inst J. 1991;18(4):293-5.

Treatment of infected aortic femoral grafts is difficult and controversial. We describe the case of a patient who presented for recurrent infections of an aorto-bifemoral prosthesis. An arterial homograft was used to replace the Dacron prosthesis. One year later,...

Thermodynamics of phase coexistence and metal-nonmetal transition in mercury: assessment of effective potentials via expanded Wang-Landau simulations.

The journal of physical chemistry. B

Desgranges C, Delhommelle J.
PMID: 24568658
J Phys Chem B. 2014 Mar 20;118(11):3175-82. doi: 10.1021/jp500577t. Epub 2014 Mar 07.

We present molecular simulation results on the thermodynamics of phase transitions (specifically, the vapor-liquid and metal-nonmetal transitions) in mercury, as predicted by effective potential models. We use a recently developed method, known as Expanded Wang-Landau simulations, to determine the...

Hippocampal subfield volumetry in mild cognitive impairment, Alzheimer's disease and semantic dementia.

NeuroImage. Clinical

La Joie R, Perrotin A, de La Sayette V, Egret S, Doeuvre L, Belliard S, Eustache F, Desgranges B, Chételat G.
PMID: 24179859
Neuroimage Clin. 2013 Aug 14;3:155-62. doi: 10.1016/j.nicl.2013.08.007. eCollection 2013.

BACKGROUND: Hippocampal atrophy is a well-known feature of Alzheimer's disease (AD), but sensitivity and specificity of hippocampal volumetry are limited. Neuropathological studies have shown that hippocampal subfields are differentially vulnerable to AD; hippocampal subfield volumetry may thus prove to...

Specific heat of a Coqblin-Schrieffer model with crystal fields: New crossover features and scaling properties.

Physical review. B, Condensed matter

Desgranges H, Rasul JW.
PMID: 9937871
Phys Rev B Condens Matter. 1985 Nov 01;32(9):6100-6103. doi: 10.1103/physrevb.32.6100.

No abstract available.

Unusual Crystallization Behavior Close to the Glass Transition.

Physical review letters

Desgranges C, Delhommelle J.
PMID: 29601768
Phys Rev Lett. 2018 Mar 16;120(11):115701. doi: 10.1103/PhysRevLett.120.115701.

Using molecular simulations, we shed light on the mechanism underlying crystal nucleation in metal alloys and unravel the interplay between crystal nucleation and glass transition, as the conditions of crystallization lie close to this transition. While decreasing the temperature...

Can Ordered Precursors Promote the Nucleation of Solid Solutions?.

Physical review letters

Desgranges C, Delhommelle J.
PMID: 31765200
Phys Rev Lett. 2019 Nov 08;123(19):195701. doi: 10.1103/PhysRevLett.123.195701.

Crystallization often proceeds through successive stages that lead to a gradual increase in organization. Using molecular simulation, we determine the nucleation pathway for solid solutions of copper and gold. We identify a new nucleation mechanism (liquid→L1_{2} precursor→solid solution) involving...

Ultrasound assessment of gastric contents prior to placental delivery: A prospective multicentre cohort study.

Anaesthesia, critical care & pain medicine

Desgranges FP, Vial F, Zieleskiewicz L, Boghossian MC, Bouaziz H, Leone M, Chassard D, Bouvet L.
PMID: 34890858
Anaesth Crit Care Pain Med. 2021 Dec 07;41(1):100993. doi: 10.1016/j.accpm.2021.100993. Epub 2021 Dec 07.

BACKGROUND: There is ongoing debate regarding the optimal general anaesthetic technique for manual removal of the placenta after vaginal delivery. Using ultrasound examination of the gastric antrum, this study aimed to assess the change in gastric contents during vaginal...

Assessing gastric contents in children before general anesthesia for acute extremity fracture: An ultrasound observational cohort study.

Journal of clinical anesthesia

Evain JN, Durand Z, Dilworth K, Sintzel S, Courvoisier A, Mortamet G, Desgranges FP, Bouvet L, Payen JF.
PMID: 34801888
J Clin Anesth. 2021 Nov 18;77:110598. doi: 10.1016/j.jclinane.2021.110598. Epub 2021 Nov 18.

STUDY OBJECTIVE: Children with acute extremity fractures are commonly considered to be at risk of pulmonary aspiration of gastric contents during the induction of anesthesia. This study aimed to evaluate the proportion of such children with high-risk gastric contents...

Showing 1 to 12 of 134 entries