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Showing 13 to 24 of 526 entries
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High Temperature Magnetic Stabilization of Cobalt Nanoparticles by an Antiferromagnetic Proximity Effect.

Physical review letters

De Toro JA, Marques DP, Muñiz P, Skumryev V, Sort J, Givord D, Nogués J.
PMID: 26274435
Phys Rev Lett. 2015 Jul 31;115(5):057201. doi: 10.1103/PhysRevLett.115.057201. Epub 2015 Jul 28.

Thermal activation tends to destroy the magnetic stability of small magnetic nanoparticles, with crucial implications for ultrahigh density recording among other applications. Here we demonstrate that low-blocking-temperature ferromagnetic (FM) Co nanoparticles (T(B)

Brain structure across the lifespan: the influence of stress and mood.

Frontiers in aging neuroscience

Soares JM, Marques P, Magalhães R, Santos NC, Sousa N.
PMID: 25505411
Front Aging Neurosci. 2014 Nov 24;6:330. doi: 10.3389/fnagi.2014.00330. eCollection 2014.

Normal brain aging is an inevitable and heterogeneous process characterized by a selective pattern of structural changes. Such heterogeneity arises as a consequence of cumulative effects over the lifespan, including stress and mood effects, which drive different micro- and...

Thyroid Carcinoma Detected by 18F-Fluorodeoxyglucose Positron Emission Tomography Among Individuals Without Prior Evidence of Thyroid Disease: Relevance and Clinicopathologic Features.

Endocrine practice : official journal of the American College of Endocrinology and the American Association of Clinical Endocrinologists

Marques P, Ratão P, Salgado L, Bugalho MJ.
PMID: 24936549
Endocr Pract. 2014 Nov;20(11):1129-36. doi: 10.4158/EP14042.OR.

OBJECTIVE: The expanding use of 18F-fluorodeoxyglucose positron emission tomography (18F-FDG-PET) has contributed to an increasing number of thyroid incidentalomas. The present study aimed to estimate the prevalence of 18F-FDG-PET thyroid incidentalomas and evaluate the clinicopathologic features of thyroid malignancies...

[A preliminary note on a new method of distribution of doses in cyclo-therapy by angular variation of rotation speed].

Journal de radiologie, d'electrologie & archives d'electricite medicale

MARQUES P, BRU A.
PMID: 13642374
J Radiol Electrol Arch Electr Medicale. 1959 Mar-Apr;40(3):135-6.

No abstract available.

Direct evidence for As as a Zn-site impurity in ZnO.

Physical review letters

Wahl U, Rita E, Correia JG, Marques AC, Alves E, Soares JC.
PMID: 16384155
Phys Rev Lett. 2005 Nov 18;95(21):215503. doi: 10.1103/PhysRevLett.95.215503. Epub 2005 Nov 15.

Arsenic has been reported in the literature as one of the few p-type dopants in the technologically promising II-VI semiconductor ZnO. However, there is an ongoing debate whether the p-type character is due to As simply replacing O atoms...

A class of constrained clustering algorithms for object boundary extraction.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society

Abrantes AJ, Marques JS.
PMID: 18290068
IEEE Trans Image Process. 1996;5(11):1507-21. doi: 10.1109/83.541421.

Boundary extraction is a key task in many image analysis operations. This paper describes a class of constrained clustering algorithms for object boundary extraction that includes several well-known algorithms proposed in different fields (deformable models, constrained clustering, data ordering,...

[Educational practices for diabetes mellitus: integrative literature review].

Revista gaucha de enfermagem

Borba AK, Marques AP, Leal MC, Ramos RS.
PMID: 22737810
Rev Gaucha Enferm. 2012 Mar;33(1):169-76. doi: 10.1590/s1983-14472012000100022.

This is an integrative literature review which aims to identify the multi-professional scientific production on educational practices for individuals with diabetes available in the databases: Latin American Literature in Health Sciences (Literatura Latino Americana em Ciências da Saúde-LILACS), Medical...

Activity recognition using a mixture of vector fields.

IEEE transactions on image processing : a publication of the IEEE Signal Processing Society

Nascimento JC, Figueiredo MA, Marques JS.
PMID: 23193235
IEEE Trans Image Process. 2013 May;22(5):1712-25. doi: 10.1109/TIP.2012.2226899. Epub 2012 Nov 10.

The analysis of moving objects in image sequences (video) has been one of the major themes in computer vision. In this paper, we focus on video-surveillance tasks; more specifically, we consider pedestrian trajectories and propose modeling them through a...

The role of the Eu3+ concentration on the SrMoO4:Eu phosphor properties: synthesis, characterization and photophysical studies.

Journal of fluorescence

Marques AP, Tanaka MT, Longo E, Leite ER, Rosa IL.
PMID: 20177748
J Fluoresc. 2011 May;21(3):893-9. doi: 10.1007/s10895-010-0604-6. Epub 2010 Feb 23.

SrMoO(4) doped with rare earth are still scarce nowadays and have attracted great attention due to their applications as scintillating materials in electro-optical like solid-state lasers and optical fibers, for instance. In this work Sr(1-x)Eu(x)MoO(4) powders, where x=0.01; 0.03...

First results of the Phase II SIMPLE dark matter search.

Physical review letters

Felizardo M, Morlat T, Fernandes AC, Girard TA, Marques JG, Ramos AR, Auguste M, Boyer D, Cavaillou A, Sudre C, Poupeney J, Payne RF, Miley HS, Puibasset J.
PMID: 21231283
Phys Rev Lett. 2010 Nov 19;105(21):211301. doi: 10.1103/PhysRevLett.105.211301. Epub 2010 Nov 16.

We report results of a 14.1   kg d measurement with 15 superheated droplet detectors of total active mass 0.208 kg, comprising the first stage of a 30 kg d Phase II experiment. In combination with the results of the...

Contribution of endosonography in an uncommon case of pancreatic cysts.

World journal of gastrointestinal endoscopy

Sousa AL, Sousa D, Figueiredo P, Marques PP, Guerreiro H.
PMID: 24147197
World J Gastrointest Endosc. 2013 Oct 16;5(10):519-22. doi: 10.4253/wjge.v5.i10.519.

Here we present the case of a 35-year-old female patient with long standing dyspepsia and imaging studies showing the presence of multiple cysts in the head and tail of the pancreas. The patient underwent endosonography that confirmed the presence...

Peripheral hematopoietic progenitor cell mobilization for autologous transplantation in hematologic malignancies.

Revista brasileira de hematologia e hemoterapia

Marques JF.
PMID: 23049350
Rev Bras Hematol Hemoter. 2011;33(6):400-1. doi: 10.5581/1516-8484.20110109.

No abstract available.

Showing 13 to 24 of 526 entries