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511 results on '"Solís D"'

1. Proximity magnetoresistance in graphene induced by magnetic insulators

Author

Solis, D. A., Hallal, A., Waintal, X., and Chshiev, M.

Subjects
Condensed Matter - Mesoscale and Nanoscale Physics, Condensed Matter - Materials Science
Abstract

We demonstrate the existence of Giant proximity magnetoresistance (PMR) effect in a graphene spin valve where spin polarization is induced by a nearby magnetic insulator. PMR calculations were performed for yttrium iron garnet (YIG), cobalt ferrite (CFO), and two europium chalcogenides EuO and EuS. We find a significant PMR (up to 100%) values defined as a relative change of graphene conductance with respect to parallel and antiparallel alignment of two proximity induced magnetic regions within graphene. Namely, for high Curie temperature (Tc) CFO and YIG insulators which are particularly important for applications, we obtain 22% and 77% at room temperature, respectively. For low Tc chalcogenides, EuO and EuS, the PMR is 100% in both cases. Furthermore, the PMR is robust with respect to system dimensions and edge type termination. Our findings show that it is possible to induce spin polarized currents in graphene with no direct injection through magnetic materials., Comment: 6 pages, 5 figures

Published
2019
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9. Genome-wide gene expression profiling suggests distinct radiation susceptibilities in sporadic and post-Chernobyl papillary thyroid cancers.

Author

Detours, V, Delys, L, Libert, F, Weiss Solís, D, Bogdanova, T, Dumont, JE, Franc, B, Thomas, G, and Maenhaut, C

Subjects
Lymphocytes, Humans, Carcinoma, Papillary, Thyroid Neoplasms, Radiation Injuries, Genetic Predisposition to Disease, Hydrogen Peroxide, Microarray Analysis, Gene Expression Profiling, Transcription, Genetic, Gene Expression Regulation, Neoplastic, Gamma Rays, Chernobyl Nuclear Accident, Adolescent, Adult, Aged, Middle Aged, Child, Child, Preschool, Infant, Tissue Banks, France, Female, Male, Carcinoma, Papillary, Preschool, Gene Expression Regulation, Neoplastic, Transcription, Genetic, Oncology and Carcinogenesis, Public Health and Health Services, Oncology & Carcinogenesis
Abstract

Papillary thyroid cancers (PTCs) incidence dramatically increased in the vicinity of Chernobyl. The cancer-initiating role of radiation elsewhere is debated. Therefore, we searched for a signature distinguishing radio-induced from sporadic cancers. Using microarrays, we compared the expression profiles of PTCs from the Chernobyl Tissue Bank (CTB, n=12) and from French patients with no history of exposure to ionising radiations (n=14). We also compared the transcriptional responses of human lymphocytes to the presumed aetiological agents initiating these tumours, gamma-radiation and H(2)O(2). On a global scale, the transcriptomes of CTB and French tumours are indistinguishable, and the transcriptional responses to gamma-radiation and H(2)O(2) are similar. On a finer scale, a 118 genes signature discriminated the gamma-radiation and H(2)O(2) responses. This signature could be used to classify the tumours as CTB or French with an error of 15-27%. Similar results were obtained with an independent signature of 13 genes involved in homologous recombination. Although sporadic and radio-induced PTCs represent the same disease, they are distinguishable with molecular signatures reflecting specific responses to gamma-radiation and H(2)O(2). These signatures in PTCs could reflect the susceptibility profiles of the patients, suggesting the feasibility of a radiation susceptibility test.

Published
2007

10. Manifestaciones orales de la osteogénesis imperfecta y el tratamiento con bifosfonatos.

Author

Palacios-Solís, D. A., Ibieta-Zarco, B. R., and Jiménez-Montero, X.

Subjects
OSTEOGENESIS imperfecta, CHILD patients, TOOTHACHE, GENETIC mutation, QUALITY of life, ORAL manifestations of general diseases
Abstract

Copyright of Revista de la Academia Mexicana de Odontología Pediátrica (2594-1798) is the property of Academia Mexicana de Odontologia Pediatrica, A. C. and its content may not be copied or emailed to multiple sites or posted to a listserv without the copyright holder's express written permission. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Published
2024
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