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Showing 1 to 12 of 140 entries
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Quest for Inexpensive Hydrogen Isotopic Fractionation: Do We Need 2D Quantum Confining in Porous Materials or Are Rough Surfaces Enough? The Case of Ammonia Nanoclusters.

The journal of physical chemistry. A

Mella M, Curotto E.
PMID: 27704841
J Phys Chem A. 2016 Oct 20;120(41):8148-8159. doi: 10.1021/acs.jpca.6b08005. Epub 2016 Oct 05.

We study the adsorption energetics and quantum properties of the molecular hydrogen isotopes H

On the convergence of diffusion Monte Carlo in non-Euclidean spaces. I. Free diffusion.

The Journal of chemical physics

Curotto E, Mella M.
PMID: 25796234
J Chem Phys. 2015 Mar 21;142(11):114110. doi: 10.1063/1.4914515.

We develop a set of diffusion Monte Carlo algorithms for general compactly supported Riemannian manifolds that converge weakly to second order with respect to the time step. The approaches are designed to work for cases that include non-orthogonal coordinate...

On the convergence of diffusion Monte Carlo in non-Euclidean spaces. II. Diffusion with sources and sinks.

The Journal of chemical physics

Curotto E, Mella M.
PMID: 25796235
J Chem Phys. 2015 Mar 21;142(11):114111. doi: 10.1063/1.4914516.

We test the second order Milstein method adapted to simulate diffusion in general compact Riemann manifolds on a number of systems characterized by nonconfining potential energy surfaces of increasing complexity. For the 2-sphere and more complex spaces derived from...

Intramuscular fat accumulation and muscle atrophy in the absence of muscle retraction.

Bone & joint research

Uhthoff HK, Coletta E, Trudel G.
PMID: 24743593
Bone Joint Res. 2014 Apr 17;3(4):117-22. doi: 10.1302/2046-3758.34.2000275. Print 2014.

OBJECTIVES: Although many clinical and experimental investigations have shed light on muscle atrophy and intramuscular accumulation of fat after rotator cuff disruption, none have reported on their onset in the absence of muscle retraction.METHODS: In 30 rabbits, we detached...

Determination of the site of incorporation of cobalt in CoZnPO-CZP by multiple-wavelength anomalous-dispersion crystallography.

Acta crystallographica. Section B, Structural science

Helliwell M, Helliwell JR, Kaucic V, Zabukovec Logar N, Barba L, Busetto E, Lausi A.
PMID: 10927374
Acta Crystallogr B. 1999 Jun 01;55:327-332. doi: 10.1107/s0108768198014414.

Data were collected from a crystal of CoZnPO-CZP {sodium cobalt-zinc phosphate hydrate, Na(6)[Co(0.2)Zn(0.8)PO(4)](6).6H(2)O} using synchrotron radiation at ELETTRA at the inflection point and 'white line' for both the cobalt and zinc K edges, and at 1.45 Å, a wavelength...

On the stability of wideband beam patterns with respect to weighting and envelope fluctuations.

Ultrasonics

Curletto S, Parodi C, Trucco A.
PMID: 15047420
Ultrasonics. 2004 Apr;42(1):997-1003. doi: 10.1016/j.ultras.2003.12.006.

This paper presents a study on the worsening caused by a random perturbation of the weighting window (modeling, in this way, the uncertainty on the channel sensitivity), or by an alteration of the shape of the transmitted pulse, for...

Response.

Science (New York, N.Y.)

Culotta E.
PMID: 17801193
Science. 1992 Mar 13;255(5050):1335. doi: 10.1126/science.255.5050.1335-a.

No abstract available.

Ecologists gather for mix of policy, science in nashville.

Science (New York, N.Y.)

Culotta E.
PMID: 17787578
Science. 1994 Aug 26;265(5176):1178-9. doi: 10.1126/science.265.5176.1178.

Nearly 4000 ecologists and plant biologists gathered in Knoxville, Tennessee, from 7 through 11 August for the joint meeting of the American Institute of Biological Sciences, which was dominated by the 7400-member-strong Ecological Society of America (ESA). In keeping...

Science's 20 Greatest Hits Take Their Lumps.

Science (New York, N.Y.)

Culotta E.
PMID: 17816173
Science. 1991 Mar 15;251(4999):1308-9. doi: 10.1126/science.251.4999.1308.

No abstract available.

X-ray diffraction on Si single crystal with a W-shaped longitudinal groove.

Journal of synchrotron radiation

Artemiev N, Busetto E, Hrdý J, Pacherová O, Snigirev A, Suvorov A.
PMID: 16609225
J Synchrotron Radiat. 2000 Nov 01;7:382-5. doi: 10.1107/S0909049500010359. Epub 2000 Nov 01.

The measurement of the sagittal deviation of an X-ray beam diffracted on the inclined surface of an Si(111) single crystal was performed on beamline BM5 at the ESRF, with lambda = 0.1 nm and an inclination angle, beta, of...

Can Science Education Be Saved?: Three ambitious but very different projects are testing a variety of ways to overhaul an education system that has been getting failing grades.

Science (New York, N.Y.)

Culotta E.
PMID: 17754966
Science. 1990 Dec 07;250(4986):1327-30. doi: 10.1126/science.250.4986.1327.

No abstract available.

Parameter space minimization methods: applications to Lennard-Jones-dipole-dipole clusters.

The Journal of chemical physics

Oppenheimer CA, Curotto E.
PMID: 15446915
J Chem Phys. 2004 Oct 01;121(13):6226-39. doi: 10.1063/1.1786916.

The morphology of the uniform Lennard-Jones-dipole-dipole cluster with 13 centers (LJDD)13 is investigated over a relatively wide range of values of the dipole moment. We introduce and compare several necessary modifications of the basin-hopping algorithm for global optimization to...

Showing 1 to 12 of 140 entries