Please use this identifier to cite or link to this item: https://hdl.handle.net/20.500.12104/44712
Title: Spherically symmetric solution in a space-time with torsion
Author: Gonzalez-Solis, J.L.
Aguinaga-Serrano, B.I.
Martinez-Espinosa, J.C.
Oceguera-Villanueva, A.
Issue Date: 2011
Abstract: The use of Raman spectroscopy to analyze biopsy biochemistry and hence distinguish between the breast cancer stages was investigated. The biopsy samples were obtained from 13 patients who were clinically diagnosed with breast cancer. A preliminary diagnosis of some breast cancer patient was realized by pathologist of the Cancer Institute. The biopsies were put under the microscope and several points were chosen for Raman measurement. All spectra were collected at a Jobin-Yvon LabRAM HR800 Raman Spectrometer with a NIR 830 nm laser. It is shown that the breast cancer stages of biopsies can be discriminated when the Principal Components Analysis (PCA) is applied to their Raman spectra. Ratios of some band intensities were analyzed and corresponded to proteins, phospholipids, and polysaccharides. The preliminary results suggest that Raman spectroscopy could be an excellent technique for stage determination of breast cancer. " 2011 American Institute of Physics.",,,,,,"10.1063/1.3626909",,,"http://hdl.handle.net/20.500.12104/44712","http://www.scopus.com/inward/record.url?eid=2-s2.0-80055044886&partnerID=40&md5=5b7f3c6c00b43c87cf852791f5b67bd3",,,,,,,,"AIP Conference Proceedings",,"33
40",,"1364",,"Scopus",,,,,,"Biopsy; Breast cancer; Principal components analysis; Raman spectroscopy",,,,,,"Stage determination of breast cancer biopsy using raman spectroscopy and multivariate analysis",,"Conference Paper" "46442","123456789/35008",,"Rios-Jara, E., Departamento de Ecología, Ctro. Univ. de Cie. Biologicas y A., Universidad de Guadalajara, Apartado Postal 52-114, Zapopan 45030, Jalisco, Mexico",,"Rios-Jara, E.",,"1998",,"Nocturnal variations of zooplankton abundance and hydrographic conditions were examined at three locations (centre, north shore and south shore) in Phosphorescent Bay, Puerto Rico, from May 1992 through April 1993. Seven taxa accounted for approximately 96% of the annual mean zooplankton abundance: Oithona spp. (43.5%), Acartia tonsa (31.5%), copepod nauplii (8.8%), Paracalanus spp.(6.7%), gastropod veligers (2.5%), larvaceans (1.7%) and Pseudodiaptomus cokeri (1.6%). Copepods dominated numerically throughout the year and comprised 94.3% of total zooplankton. Higher abundance of zooplankton (mean 1 SD=252 259 176 797 individuals m-3) was associated with cool water temperatures (24.9-27.4°C) and dry conditions (0.3-2.9 cm precipitation/month) which prevailed between December and March relative to the period between April and November (warm/wet season) (mean 1 SD=59 773 26 861 individuals m-3), when temperature and precipitation were higher (27.3-30.3°C, 3.1-20-6 cm month-1). Fluctuations of zooplankton populations, particularly copepods, followed progressive increments in chlorophyll a concentrations. This abundance pattern was consistent at the three sampling stations. Zooplankton abundance was higher on the north shore of the bay. The taxonomic composition of zooplankton was similar at the sampling stations studied.",,,,,,"10.1006/ecss.1997.0289",,,"http://hdl.handle.net/20.500.12104/44663","http://www.scopus.com/inward/record.url?eid=2-s2.0-0032101867&partnerID=40&md5=f950073aaa93b3f3a4d35271d3473025",,,,,,"6",,"Estuarine, Coastal and Shelf Science",,"797
809",,"46",,"Scopus
WOS",,,,,,"Caribbean Sea; Puerto Rico; Zooplankton",,,,,,"Spatial and temporal variations in the zooplankton community of Phosphorescent Bay, Puerto Rico",,"Article" "46466","123456789/35008",,"Farfan, F., Centro Universitario de Ciencias Exactas e Ingeniería, Universidad de Guadalajara, Av. Revolución 1500, S.R., 44430 Guadalajara, Jalisco, Mexico; García-Salcedo, R., CICATA-Legaria, IPN, Av. Legaria 694, Col. Irrigación, CP 11500 Mexico, Mexico; Loaiza-Brito, O., Departamento de Física, DCI, Campus León, Universidad de Guanajuato, CP 37150 Guanajuato, Mexico; Moreno, C., Centro Universitario de Ciencias Exactas e Ingeniería, Universidad de Guadalajara, Av. Revolución 1500, S.R., 44430 Guadalajara, Jalisco, Mexico; Yakhno, A., Centro Universitario de Ciencias Exactas e Ingeniería, Universidad de Guadalajara, Av. Revolución 1500, S.R., 44430 Guadalajara, Jalisco, Mexico",,"Farfan, F.
García-Salcedo, R.
Loaiza-Brito, O.
Moreno, C.
Yakhno, A.",,"2012",,"By using the method of group analysis, we obtain a new exact evolving and spherically symmetric solution of the Einstein-Cartan equations of motion, corresponding to a space-time threaded with a three-form Kalb-Ramond field strength. The solution describes in its more generic form, a space-time which scalar curvature vanishes for large distances and for large time. In static conditions, it reduces to a classical wormhole solution and to a exact solution with a localized scalar field and a torsion kink, already reported in literature. In the process we have found evidence towards the construction of more new solutions. " 2011 Springer Science+Business Media, LLC.
URI: http://hdl.handle.net/20.500.12104/44687
http://www.scopus.com/inward/record.url?eid=2-s2.0-84855984760&partnerID=40&md5=23188d1793b0b4a133a078d5944a5009
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