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Showing 13 to 24 of 532 entries
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Open network architectures from the self-assembly of AgNO3 and 5,10,15,20-tetra(4-pyridyl)porphyrin (H2tpyp) building blocks: the exceptional self-penetrating topology of the 3D network of [Ag8(ZnIItpyp)7(H2O)2](NO3)8.

Angewandte Chemie (International ed. in English)

Carlucci L, Ciani G, Proserpio DM, Porta F.
PMID: 12548689
Angew Chem Int Ed Engl. 2003 Jan 20;42(3):317-22. doi: 10.1002/anie.200390106.

No abstract available.

Regular molecular nano-dot patterns for RW-data storage in the optical near field.

Journal of microscopy

Port H, Rath S, Heilig M, Gärtner P.
PMID: 18331496
J Microsc. 2008 Mar;229:463-8. doi: 10.1111/j.1365-2818.2008.01929.x.

In this contribution further steps to realize our concept of optical data storage in molecular nano-dots as storage bits are reported. A preparation method has been developed successfully to achieve regular nano-dot patterns of high density. This is considered...

Enhanced Q switching in double-clad fiber lasers.

Optics letters

Chen ZJ, Grudinin AB, Porta J, Minelly JD.
PMID: 18084542
Opt Lett. 1998 Mar 15;23(6):454-6. doi: 10.1364/ol.23.000454.

A novel cladding pumped Nd(3+) fiber laser operating in an enhanced Q-switched regime with a stable repetition rate is described. By exploiting fiber nonlinearities in the laser cavity, we demonstrated a peak power of 3.7 kW enhanced by an...

Reactivity of methyl mandelate-Ti(IV)-enediolate: oxidative homocoupling versus aldol and direct Mannich-type syn-diastereoselective condensation.

The Journal of organic chemistry

Clerici A, Pastori N, Porta O.
PMID: 15876113
J Org Chem. 2005 May 13;70(10):4174-6. doi: 10.1021/jo048279f.

[reaction: see text] Methyl mandelate undergoes quantitative oxidative homocoupling on treatment with TiCl4/amine at room temperature. In the presence of ArCHO, quantitative syn-diastereoselective aldol condensation takes over the dimerization, whereas exclusive Mannich-type syn-diastereoselective reaction is observed in the presence...

Origin of magnetic and magnetoelastic tweedlike precursor modulations in ferroic materials.

Physical review letters

Saxena A, Castán T, Planes A, Porta M, Kishi Y, Lograsso TA, Viehland D, Wuttig M, De Graef M.
PMID: 15169443
Phys Rev Lett. 2004 May 14;92(19):197203. doi: 10.1103/PhysRevLett.92.197203. Epub 2004 May 14.

Based on experimental observations of modulated magnetic patterns in a Co0.5Ni0.205Ga0.295 alloy, we propose a model to describe a (purely) magnetic tweed and a magnetoelastic tweed. The former arises above the Curie (or Néel) temperature due to magnetic disorder....

Analysis of the fast recovery dynamics of a semiconductor laser with feedback in the low-frequency fluctuation regime.

Optics letters

Hegarty SP, Huyet G, Porta P, McInerney JG.
PMID: 18087475
Opt Lett. 1998 Aug 01;23(15):1206-8. doi: 10.1364/ol.23.001206.

We experimentally investigate the temporal evolution of the power of an external cavity semiconductor laser in the low-frequency fluctuation regime with subnanosecond resolution. We show, for the first time to our knowledge, that generally the laser power drops to...

[Malformations of the anterior chest wall].

Revue des maladies respiratoires

Conti M, Cavestri B, Benhamed L, Porte H, Wurtz A.
PMID: 17347599
Rev Mal Respir. 2007 Feb;24(2):107-20. doi: 10.1016/s0761-8425(07)91035-9.

INTRODUCTION: Pectus excavatum or funnel chest is the most common anterior chest wall deformity seen in children and adults. The sternal depression appears to be caused by overgrowth of the costal cartilages, also the cause of the less common...

Heterogeneity of Glutamine Synthetase Polypeptides in Phaseolus vulgaris L.

Plant physiology

Lara M, Porta H, Padilla J, Folch J, Sánchez F.
PMID: 16663942
Plant Physiol. 1984 Dec;76(4):1019-23. doi: 10.1104/pp.76.4.1019.

Glutamine synthetases from roots, nodules, and leaves of Phaseolus vulgaris L. have been purified to homogeneity and their polypeptide composition determined.The leaf enzyme is composed of six polypeptides. The cytosolic fraction contains two 43,000 dalton polypeptides and the chloroplastic...

Medical treatment of unresectable hepatocellular carcinoma: Going beyond sorafenib.

World journal of hepatology

Porta C, Paglino C.
PMID: 21160981
World J Hepatol. 2010 Mar 27;2(3):103-13. doi: 10.4254/wjh.v2.i3.103.

Even though Sorafenib has radically changed the natural history of those hepatocellular carcinoma patients who are not amenable for curative treatments, further therapeutic improvements are badly needed. As it was for Sorafenib, our increasingly refined understanding of the complex...

Key role of Ti(IV) in the selective radical-radical cross-coupling mediated by the Ingold-Fischer effect.

Journal of the American Chemical Society

Spaccini R, Pastori N, Clerici A, Punta C, Porta O.
PMID: 19049431
J Am Chem Soc. 2008 Dec 31;130(52):18018-24. doi: 10.1021/ja807613q.

We report an innovative approach for the selective synthesis of polyfunctional derivatives by cross-combination of different radicals generated under mild conditions. The coordinating effect of Ti(IV) plays a key role in the reaction mechanism: due to its chelating action...

Enantioselective synthesis and olfactory evaluation of bicyclic alpha- and gamma-ionone derivatives: the 3D arrangement of key molecular features relevant to the violet odor of ionones.

The Journal of organic chemistry

Luparia M, Legnani L, Porta A, Zanoni G, Toma L, Vidari G.
PMID: 19743882
J Org Chem. 2009 Sep 18;74(18):7100-10. doi: 10.1021/jo9014936.

Violet smelling ionones 1-3, occurring in the headspace of different flowers, are well-known perfumery raw materials. With the goal to recognize the still ill-defined spatial arrangement of structural features relevant to the binding of ionones to olfactory G-protein coupled...

Management of obstetric perineal tears: do obstetrics and gynaecology residents receive adequate training? Results of an anonymous survey.

Obstetrics and gynecology international

Cornet A, Porta O, Piñeiro L, Ferriols E, Gich I, Calaf J.
PMID: 21822436
Obstet Gynecol Int. 2012;2012:316983. doi: 10.1155/2012/316983. Epub 2011 Jul 24.

Background/Aim. To evaluate the obstetrics and gynaecology residents' perspective of their training and experience in the management of perineal tears that occur during assisted vaginal delivery. We hypothesised that residents would perceive room for improvement in their knowledge of...

Showing 13 to 24 of 532 entries