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604 results on '"De La Cruz, C."'

152. Evolution of spin excitations into the superconducting state in FeTe1−xSex

Author

Lumsden, M. D., primary, Christianson, A. D., additional, Goremychkin, E. A., additional, Nagler, S. E., additional, Mook, H. A., additional, Stone, M. B., additional, Abernathy, D. L., additional, Guidi, T., additional, MacDougall, G. J., additional, de la Cruz, C., additional, Sefat, A. S., additional, McGuire, M. A., additional, Sales, B. C., additional, and Mandrus, D., additional

Published
2010
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161. Toxicology Letters

Author

Hernández-Ceruelos, A., primary, Madrigal-Bujaidar, E., additional, and De La Cruz, C., additional

Published
2004
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175. Do the Pre-Main Sequence δ Scuti Stars Really Exist?

Author

Peña, J.H., primary, Peniche, R., additional, Plascencia, J.C., additional, Hobart, M.A., additional, de la Cruz, C., additional, Garcia Cole, A., additional, Cervantes, F., additional, Sareyan, J.P., additional, Parrao, L., additional, Carrillo, M., additional, Valdes, T., additional, and Prada, I., additional

Published
2002
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178. Comparison of the COBE DMR and Tenerife Data

Author

Lineweaver, Charles H., Hancock, Stephen, Smoot, George F., Lasenby, Anthony N., Davies, Rod D., Banday, Anthony J., Gutierrez De La Cruz, C. M., Watson., Robert A., Rebolo, Rafael, Lineweaver, Charles H., Hancock, Stephen, Smoot, George F., Lasenby, Anthony N., Davies, Rod D., Banday, Anthony J., Gutierrez De La Cruz, C. M., Watson., Robert A., and Rebolo, Rafael

Abstract

We have compared the Tenerife data with the COBE Differential Microwave Radiometer (DMR) 2 year data in the declination + 40° region of the sky observed by the Tenerife experiment. Using the Galactic plane signal at ∼ 30 GHz, we show that the two data sets are cross-calibrated to within 5%. The high Galactic latitude data were investigated for the presence of common structures with the properties of cosmic microwave background (CMB) fluctuations. The most prominent feature in the Tenerife data (ΔT ∼ 80 μK) appears to be present in both the 53 and 90 GHz DMR maps and has the Planckian spectrum expected for CMB anisotropy. The cross-correlation function of the Tenerife and DMR scans is indicative of common structure and at zero lag has the value C(O)1/2 = 34-1.5 +13μK. The combination of the spatial and spectral information from the two data sets is consistent with the presence of cosmic microwave background anisotropies common to both. The probability that noise could produce the observed agreement is less than 5%.

Published
1995

185. Comparison of the COBE DMR and Tenerife Data

Author

Lineweaver, C. H., primary, Hancock, S., additional, Smoot, G. F., additional, Lasenby, A. N., additional, Davies, R. D., additional, Banday, A. J., additional, Gutierrez de La Cruz, C. M., additional, Watson, R. A., additional, and Rebolo, R., additional

Published
1995
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190. All-cause infant mortality and the risk for subsequent preterm birth.

Author

SALIHU, H. M., AUGUST, E. M., DE LA CRUZ, C., WELDESELASSE, H., SANCHEZ, E., ALIO, A. P., and MARTY, P. J.

Subjects
INFANT mortality, PREGNANCY, PREMATURE labor, MOTHERS, OBSTETRICS
Abstract

The article presents a study which assessed the link between all-cause infant mortality in the first pregnancy and the risk of preterm birth in the second pregnancy. Topics discussed include risk factors for preterm birth, maternal socio-demographic characteristics in the second pregnancy which are considered covariates, and the differences in the prevalence of pregnancy complications in the second pregnancy among mothers based on exposure status.

Published
2013

195. Does maternal obesity cause preeclampsia? A systematic review of the evidence.

Author

Salihu, H. M., De La Cruz, C., Rahman, S., and August, E. M.

Subjects
OBESITY, PREECLAMPSIA, BIOMARKERS, OBESITY in women, PREGNANCY complications, EPIDEMIOLOGICAL research
Abstract

The article presents a study that assessed whether maternal obesity causes preeclampsia. The study reviewed literature that deals with maternal obesity exposure and preeclampsia as the outcome of interest. Results reveal the association between obesity and preeclampsia, identifying multiple biomarkers that explain the mechanistic pathway in this relationship. Based on epidemiologic evidence, maternal obesity is linked to preeclampsia but there is poor definition on the exact causal pathway, says the article.

Published
2012

196. Partially disordered state and spin-lattice coupling in an S = &frac32; triangular lattice antiferromagnet Ag2CrO2.

Author

Matsuda, M., De La Cruz, C., Yoshida, H., Isobe, M., and Fishman, R. S.

Subjects
*LATTICE theory, *ANTIFERROMAGNETISM, *CHROMIUM oxide, *ABSTRACT algebra, *FERROMAGNETISM, *MAGNETIC coupling
Abstract

Ag2CrO2 is an S = 3/2 frustrated triangular lattice antiferromagnet without an orbital degree of freedom. With decreasing temperature, a four-sublattice spin state develops. However, a long-range partially disordered state with five sublattices abruptly appears at TN = 24 K, accompanied by a structural distortion, and persists at least down to 2 K. The spin-lattice coupling stabilizes the anomalous state, which is expected to appear only in limited ranges of further-neighbor interactions and temperature. It was found that the spin-lattice coupling is a common feature in triangular lattice antiferromagnets with multiple-sublattice spin states, since the triangular lattice is elastic. [ABSTRACT FROM AUTHOR]

Published
2012
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197. SEROPREVALENCIA DE Toxoplasma gondii EN ALPACAS HEMBRAS DE LA SAIS PACHACÚTEC, SIERRA CENTRAL DEL PERÚ.

Author

De La Cruz C., Hernán, Chávez V., Amanda, Casas A., Eva, and Li E., Olga

Subjects
TOXOPLASMA gondii, ALPACA, SEROPREVALENCE, EPIDEMIOLOGY, SEROLOGY, IMMUNOGLOBULINS
Abstract

Copyright of Revista de Investigaciones Veterinarias del Peru is the property of Universidad Nacional Mayor de San Marcos (UNMSM) 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
2011
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198. Evolution of spin excitations into the superconducting state in FeTe1−xSex.

Author

Lumsden, M. D., Christianson, A. D., Goremychkin, E. A., Nagler, S. E., Mook, H. A., Stone, M. B., Abernathy, D. L., Guidi, T., MacDougall, G. J., de la Cruz, C., Sefat, A. S., McGuire, M. A., Sales, B. C., and Mandrus, D.

Subjects
SPIN excitations, SUPERCONDUCTIVITY, MAGNETISM, ELECTRIC conductivity, NEUTRON scattering
Abstract

The origin of the superconducting state in the recently discovered Fe-based materials is the subject of intense scrutiny. Neutron scattering and NMR (ref. 8) measurements have already demonstrated a strong correlation between magnetism and superconductivity. A central unanswered question concerns the nature of the normal-state spin fluctuations that may be responsible for the pairing. Here we present inelastic neutron scattering measurements from large single crystals of superconducting and non-superconducting Fe1+yTe1−xSex. These measurements indicate a spin fluctuation spectrum dominated by two-dimensional incommensurate excitations extending to energies greater than 250 meV. Most importantly, the spin excitations in Fe1+yTe1−xSex have four-fold symmetry about the (1, 0) wavevector (square-lattice (π,π) point). Moreover, the excitations are described by the identical wavevector and can be characterized by the same model as the normal-state spin excitations in the high-TC cuprates. These results demonstrate commonality between the magnetism in these classes of materials, which perhaps extends to a common origin for superconductivity. [ABSTRACT FROM AUTHOR]

Published
2010
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199. Photoelectric photometry and period analysis of selected Delta Scuti stars in Praesepe*

Author

Peña, J. H., Peniche, R., Hobart, M. A., Rolland, A., Coca, P. López de, Paparo, M., Parrao, L., de la Cruz, C., Olivares, J. I., Costa, V., Ibanoglu, C., Ertan, A. Y., Tumer, O., Evren, S., Tunca, Z., Peña, J. H., Peniche, R., Hobart, M. A., Rolland, A., Coca, P. López de, Paparo, M., Parrao, L., de la Cruz, C., Olivares, J. I., Costa, V., Ibanoglu, C., Ertan, A. Y., Tumer, O., Evren, S., and Tunca, Z.

Abstract

Photoelectric photometry of seven Delta Scuti stars in Praesepe was secured. Three of them were observed simultaneously at observatories located at different longitudes. Period analysis has been carried out for each star with different computing packages and the results compared to those in the literature. Their physical characteristics have been determined from the Strömgren photometry and theoretical and empirical calibrations.

Published
1998
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