Article
A tunable multivariable nonlinear robust observer for biological systems
Fecha
2012Registro en:
10.1016/j.crvi.2004.11.008
Autor
Sierra-Valdez, F.J.
Cisneros-Mejorado, A.J.
Sanchez Herrera, D.P.
Ruiz-Suarez, J.C.
Institución
Resumen
The study of motor properties of cells under appropriate physical-chemical conditions is a significant problem nowadays. The standard techniques presently used do not allow to evaluate neither large samples nor to control their thermodynamic conditions. In this work, we report a cell motility sensor based on an optical technique with a time-resolved correlation, adapted in a system able to study several samples simultaneously. Image correlation analysis is used to follow their temporal behavior. A wide variety of motile cells, such as archaea, bacteria, spermatozoa, and even contractile cells, can be studied using this technique. Here, we tested our technique with the study of sperm motility. In particular, both the sperm motility and its prevalence are studied under a temperature range from 0 to 37 C. We found that incubation at 10 C presents the lengthiest prevalence in motility and observed, for the first time, an interesting thermal reversibility behavior. " 2012 American Institute of Physics.",,,,,,"10.1063/1.3700248",,,"http://hdl.handle.net/20.500.12104/39154","http://www.scopus.com/inward/record.url?eid=2-s2.0-84860556439&partnerID=40&md5=02623f861e71c4a8568602349b40342b",,,,,,"4",,"Review of Scientific Instruments",,,,"83",,"Scopus WOS",,,,,,,,,,,,"A thermal study of cellular motility by optical time-resolved correlation",,"Review"
"40939","123456789/35008",,,"Charlois Allende, Adrien",,"2012",,,,,,,,,,"0188-252X",,"http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0188-252X2012000200010&lng=es&nrm=iso&tlng=es; http://132.248.9.1:8991/F/T2YHQN5JKYSPCIP3SAPK3TB1KGTDDEFCSVNH496MXCXGEJUB2B-13109?func=full-set-set&set_number=025047&set_entry=000133&format=999 http://hdl.handle.net/20.500.12104/39160",,"Español",,,,"18",,"Comunicación y sociedad",,"205-210",,,,"CLASE PERIODICA",,,,,,,,"Medios de comunicación masiva",,"Cueva, A.; Estrada, C.; Garnica, A.; Jara, R.; López, H.; Orozco, G.; Soto, S. Telenovelas en México. Nuestras íntimas extrañas. México: Grupo Delphi, 2011, 267 p.","Cueva, A.; Estrada, C.; Garnica, A.; Jara, R.; López, H.; Orozco, G.; Soto, S. Telenovelas en México. Nuestras íntimas extrañas. México",,,"journalArticle",
"44696","123456789/35008",,"Mantilla-Capacho, J., División de Genética, Ctro. Invest. Biomed. Occidente, IMSS, Guadalajara, Jalisco, Mexico; Beltrán-Miranda, C.P., División de Genética, Ctro. Invest. Biomed. Occidente, IMSS, Guadalajara, Jalisco, Mexico; Jaloma-Cruz, A.R., División de Genética, Ctro. Invest. Biomed. Occidente, IMSS, Guadalajara, Jalisco, Mexico, Ctro. Invest. Biomed. Occidente, IMSS, Sierra Mojada 800 Col. Independencia, C.P. 44340, Guadalajara, Jalisco, Mexico",,"Mantilla-Capacho, J. Beltran-Miranda, C.P. Jaloma-Cruz, A.R.",,"2005",,"[No abstract available]",,,,,,,,,"http://hdl.handle.net/20.500.12104/42917","http://www.scopus.com/inward/record.url?eid=2-s2.0-14844298735&partnerID=40&md5=0350ceb18ff27e592770de09983324bc",,,,,,"1",,"Gaceta Medica de Mexico",,"69 71",,"141",,"Scopus",,,,,,,,,,,,"Molecular diagnosis in patients and carriers of Hemophilia A and B [Diagnóstico molecular en pacientes y portadoras de hemofilia A y B]",,"Short Survey"
"40938","123456789/35008",,"Alcaraz-González, V., Departamento de Ingenieria Quimica, Universidad de Guadalajara, CUCEI, Blvd. Marcelino García Barragan 1451, Guadalajara, Jalisco 44430, Mexico; Salazar-Peña, R., Departamento de Ingenieria Quimica, Universidad de Guadalajara, CUCEI, Blvd. Marcelino García Barragan 1451, Guadalajara, Jalisco 44430, Mexico; González-Álvarez, V., Departamento de Ingenieria Quimica, Universidad de Guadalajara, CUCEI, Blvd. Marcelino García Barragan 1451, Guadalajara, Jalisco 44430, Mexico; Gouz , J.-L., INRIA, COMORE Project BP93, 06902 Sophia-Antipolis Cedex, France; Steyer, J.-P., Lab. de Biotechnologie de l'Environ., INRA, avenue des E´tangs, 11100 Narbonne, France",,"Alcaraz-Gonzalez, V. Salazar-Pena, R. Gonzalez-Alvarez, V. Gouze, J.-L. Steyer, J.-P.",,"2005",,"This paper presents a robust nonlinear asymptotic observer with adjustable convergence rate with a great potential of applicability for biological systems in which the main state variables are difficult and expensive to measure or such measurements do not exist. This observer scheme is based on the classical asymptotic observer, which is modified to allow the tuning of the convergence rate. It is shown that the proposed observer provides fast and satisfactory estimates when facing load disturbances, system failures and parameter uncertainty while maintaining the excellent robustness and stability properties of the classical asymptotic observer. The implementation of the tunable observer is carried out by numerical simulations of a mathematical model of an anaerobic digestion process used for wastewater treatment. The key results are examined and further developed. " 2004 Académie des sciences. Published by Elsevier SAS. All rights reserved.