Article
Pressure affects transcription profiles of Methanocaldococcus jannaschii despite the absence of barophilic growth under gas-transfer limitation
Fecha
2009Autor
García-Torales, G.
Castrellon-Uribe, J.
Patino, E.H.
Institución
Resumen
We present experimental results of monitoring pressure over samples painted with paint called Pressure Sensitive Paint (PSP), employing optical spectroscopy and imaging analysis. An electronic system to control pressure is implemented to restricted low pressure monitoring of the samples with PSP. The surface under analysis is excited with 370 nm wavelength (UV). The signal of fluorescence generated at 580 nm is correlated to variation of pressure over the interval of 4 to 200 kPa. As a complement, a set of images is acquired in the same interval of pressure. The images are processed and then lead to a set of histograms obtained from the samples images. We assess the transfer function of the system analyzing the histograms and the spectral response curves. " 2009 SPIE.",,,,,,"10.1117/12.852083",,,"http://hdl.handle.net/20.500.12104/43852","http://www.scopus.com/inward/record.url?eid=2-s2.0-73849144364&partnerID=40&md5=6a697bf17f01722ff31a01c14c270fc4",,,,,,,,"Proceedings of SPIE - The International Society for Optical Engineering",,,,"7499",,"Scopus",,,,,,"Imaging characterization; Pressure sensitive paints; Spectroscopy",,,,,,"Pressure monitoring over surfaces with sensitive paint by optical spectroscopy and intensity-based methods",,"Conference Paper"
"45615","123456789/35008",,"Galván Ramírez, M.L., Center for Tropical Disease Research, University of Guadalajara, Jalisco, México.; Sánchez Vargas, G., Center for Tropical Disease Research, University of Guadalajara, Jalisco, México.; Vielma Sandoval, M., Center for Tropical Disease Research, University of Guadalajara, Jalisco, México.; Soto Mancilla, J.L., Center for Tropical Disease Research, University of Guadalajara, Jalisco, México.",,"Galvan Ramirez, M.L. Sanchez Vargas, G. Vielma Sandoval, M. Soto Mancilla, J.L.",,"1999",,"Cats are the definitive hosts of Toxoplasma gondii. Infected cats excrete oocysts in their feces, infecting humans and other animals. The objective of the present study was to determine the presence of anti-Toxoplasma antibodies in cat owners and their pets, and determine if there was a relationship between Toxoplasma infection and humans who live with infected cats. IgG anti-Toxoplasma antibodies in sera of 59 cat owners were determined by enzyme-linked immunosorbent assay (ELISA), in 24 sera from their cats, IgG, IgM, and IgA antibodies were found using Burney's ELISA. Thirty-eight (64%) of 59 cat owners were positive to IgG anti-Toxoplasma. Seropositivity for cats was 70.8% IgG, 8.3% IgM, and 62.5% IgA. Cohabitation with cats infected by T. gondii, feeding with leftovers or raw viscera, and lack of control over how their feces were handled are risk factors conducive for humans to become infected by T. gondii.",,,,,,,,,"http://hdl.handle.net/20.500.12104/43836","http://www.scopus.com/inward/record.url?eid=2-s2.0-0033186575&partnerID=40&md5=7e06b929082f0dff5f7fd7fadef46f0c",,,,,,"5",,"Revista da Sociedade Brasileira de Medicina Tropical",,"483 488",,"32",,"Scopus",,,,,,,,,,,,"Presence of anti-Toxoplasma antibodies in humans and their cats in the urban zone of Guadalajara.",,"Article"
"45628","123456789/35008",,"Boonyaratanakornkit, B., Department of Chemical Engineering, University of California, Berkeley, CA 94720, United States; Córdova, J., Ingeniería Química, Universidad de Guadalajara, Jalisco, Mexico; Park, C.B., Department of Chemical and Materials Engineering, Arizona State University, Tempe, AZ 85287, United States; Clark, D.S., Department of Chemical Engineering, University of California, Berkeley, CA 94720, United States",,"Boonyaratanakornkit, B. Cordova, J. Park, C.B. Clark, D.S.",,"2006",,"Barophilic growth of the hyperthermophilic methanarchaeon Methanocaldococcus jannaschii occurred when gas-substrate availability did not limit growth. In contrast, when growth was limited by gas transfer, no enhancement of growth was evident and a stress response was exhibited at both high and low pressure. A pressure-induced transcriptional response was evident, regardless of whether growth was enhanced by pressure. Potential high-pressure adaptation of a barophilic organism can thus occur at the transcriptional level, even though the cells are stressed by low substrate availability and do not exhibit accelerated growth. " 2006 The Authors.