Article
Path integral approach for superintegrable potentials on spaces of non-constant curvature: II. Darboux spaces DIII and DIV
Fecha
2004Autor
Marum-Espinosa, E.
Institución
Resumen
This article deals with the representations of foreign students who take part of exchange programs in Guadalajara, about themselves as performers of their own training process and about the learning environment as well. The research is about elements which allow to understand their own conception as students from other institutions, out of their original environment, and to know what they think about the educational system in Mexico, the Mexican institution which takes them in and the Mexican actors, in order to improve the internationalization process of the institutions. At the beginning, the author describes the main features of the actors, with a special emphasis on the resemblances and differences between students, teachers and environment according to the foreign students; points of view, and on the impact of the mobility program in their academic and human development. " 2010 Instituto de Investigaciones sobre la Universidad y la Educación, UNAM.",,,,,,,,,"http://hdl.handle.net/20.500.12104/42463","http://www.scopus.com/inward/record.url?eid=2-s2.0-78649359501&partnerID=40&md5=a4ca8723333476a1ebba7d1a2d4f149e",,,,,,"105-106",,"Perfiles Educativos",,"143 158",,"26",,"Scopus ScIELO CLASE",,,,"Education & Educational Research",,"Actors; Educational quality; Foreign students; Internationalization; Perceptions; Student mobility; Students exchange",,"Movilidad de estudiantes; Internacionalización; Percepción de los actores; Calidad de la educación; Estudiantes extranjeros; Intercambio de estudiantes / Sociología de la educación",,,,"La movilidad de estudiantes, características y opiniones de los estudiantes extranjeros en Guadalajara, Jalisco, México",,"Article"
"44265","123456789/35008",,"Tsin, D.A., Department of Gynecology, Western Queens Community Hospital, New York, NY, United States, Mount Sinai Hospital, New York, NY, United States, 37-42 77th Street, Jackson Heights, NY 11372, United States; Espinoza De Los Monteros, J.A., Dept. of Obstetrics and Gynecology, Universidad de Guadalajara, Jalisco, Mexico; Colombero, L., Dept. of Obstetrics and Gynecology, Universidad Nacional de Rosario, Rosario, Argentina",,"Tsin, D.A. Espinoza De Los Monteros, J.A. Colombero, L.",,"1996",,"We performed two techniques for laparoscopic extraction of benign ovarian teratomas. For cysts up to 5 cm, we used the pouch technique, with partial extraction followed by enlargement of the hypogastric port. A skin incision was enlarged to allow the use of a scalpel in the pouch. This enabled us to perform several stab incisions in the cyst to spill its contents while still holding it in the pouch. This was followed by suction irrigation and forceps removal of the contents until the collapsed cyst could be removed in the pouch. For a cyst over 5 cm, we performed endoscopic aspiration irrigation with hot water inside the cyst, followed by partial extraction of the cyst; an opening was made in the exposed cyst wall and the contents extracted as described. When the cyst wall collapsed, we proceeded with the final extraction. When spillage occurred, it was managed with extensive warm lavage of the peritoneum, skimming the floating debris with suction tubing until clear, and underwater inspection and removal of teeth and other solid material. With these techniques, we experienced no complications.",,,,,,"10.1016/S1074-3804(96)80014-4",,,"http://hdl.handle.net/20.500.12104/42486","http://www.scopus.com/inward/record.url?eid=2-s2.0-0030051023&partnerID=40&md5=1533cfb22b8a70c7f730b57b49a00d55",,,,,,"2",,"Journal of the American Association of Gynecologic Laparoscopists",,"283 286",,"3",,"Scopus",,,,,,,,,,,,"Laparoscopic techniques for extracting ovarian teratomas",,"Article"
"44264","123456789/35008","Ribes-Iñesta, E., Universidad de Guadalajara, Centro de Estudios e Investigaciones en Comportamiento, Francisco de Quevedo 180, Apartado Postal 5-374, Col. Arcos Lafayette, 44130, Guadalajara, Mexico",,"Ribes-Iñesta, E.",,"2007",,"A conceptual analysis of the terms knowledge, learning, and language, was conducted order to examine their interrelationships and logical functions for the understanding of behavior. Knowledge and learning are dispositional concepts. Knowing has two different meanings, as declarative knowing and as performative knowing; both corresponding to "capacity" concepts. On the other hand, learning is used as an episodic-achievement concept. I distinguish three different general functions of language and I examine how language and knowledge depend upon the participating language modes.",,,,,,,,,,"http://www.scopus.com/inward/record.url?eid=2-s2.0-42349112456&partnerID=40&md5=abfd115d843c81015e3b56403c66cbb2 http://hdl.handle.net/20.500.12104/42485",,,,,,"1",,"Revista Mexicana de Psicologia",,"7 14",,"24",,"Scopus WOS",,,,,,"Capacity concepts; Episodic achievement concepts; Knowledge; Language; Learning",,,,"Language, learning and knowledge [Lenguaje, aprendizaje y conocimiento]",,,,"Article",
"45302","123456789/35008",,"Moreno-Medina, C.U., Universidad Autónoma Metropolitana, Mexico, Universidad Autónoma de Baja California, Mexico, Centro de Investigación y Estudios Avanzados, Instituto Politécnico Nacional (CINVESTAV-IPN), Mexico; Luz De, M.B.-D., Universidad de Guadalajara, Mexico, CINVESTAV-IPN, Mexico; Ríos-Leal, E., Fundadora y Coordinadora de Central Analítica, CINVESTAV-IPN, Universidad Nacional Autónoma de México (UNAM), Mexico; Barrera-Cortés, J., CINVESTAV-IPN, Mexico, UNAM, Mexico, University de Paris-Nord, France; Rinderknecht-Seijas, N., Escuela Nacional de Ciencias Biológicas, IPN, Mexico, IPN, Mexico, ESIQIE, IPN, Mexico; Poggi-Varaldo, H.M., CINVESTAV-IPN, Mexico, Universidad de la República Oriental del Uruguay, UNAM, Mexico",,"Moreno-Medina, C.U. Luz De, M.B.-D. Rios-Leal, E. Barrera-Cortes, J. Rinderknecht-Seijas, N. Poggi-Varaldo, H.M.",,"2011",,"Perchloroethylene (PCE) is one of the most commonly reported chlorinated organic contaminants in groundwater, where it forms a dense phase at the bottom of the aquifer and due to its low solubility is very difficult to remove. Thus, it results in an extendedrelease source of contamination to the aquifer. There is the need of enhanced solubility of PCE for further extraction and treatment in pump-and-treat approaches. One way to increase the availability of the pollutant in aquifers for remediation ad situ is by surfactant addition. Tween 80 is a nonionic surfactant with low critical micellar capacity and low toxicity to microorganisms, and represents a good candidate for enhanced PCE solubilization. The aim of this study was to determine the effect of the addition of Tween 80 on the solubility of PCE in a representative water. The maximum concentration of soluble PCE was 1532mg l-1 at the highest dose of Tween 80 used in this work (800mg l-1). In contrast the maximum solubility of PCE in water without addition of surfactant was 120mg l-1. Results show a high PCE solubilization ratio of 12 with Tween 80, compared to ratios of 1.53 and 2.26 for sodium dodecyl sulfate (SDS) and the biosurfactant UH, determined at 800mg l -1 of each surfactant. High values of other indices, such as K m and the molar solubility ratio, also confirmed the superiority of Tween 80 with respect to SDS and UH, for this application. Tween 80 appears a good candidate for solubilizing high concentrations of PCE in groundwater.",,,,,,,,,"http://hdl.handle.net/20.500.12104/43523","http://www.scopus.com/inward/record.url?eid=2-s2.0-79952844753&partnerID=40&md5=c99589d17bb758b161e9f4c8a7b9eed2",,,,,,"3",,"Interciencia",,"224 228",,"36",,"Scopus WOS",,,,,,,,,,,,"Perchloroethylene solubilization with a non-ionic tensoactive [Incremento de la solubilización de percloroetileno con un tensoactivo no uiúnico]",,"Conference Paper"
"44251","123456789/35008",,"Whitehead, J.A., Department of Physical Oceanography, Woods Hole Oceanographic Institution, 360 Woods Hole Road, Woods Hole, MA 02543, United States; Timmermans, M.L.E., Institute of Theoretical Geophysics, DAMTP, University of Cambridge, Cambridge, CB3 9EW, United Kingdom; Lawson, W.G., Massachusetts Institute of Technol., Cambridge, MA 02139, United States; Bulgakov, S.N., Institute of Astronomy/Meteorology, University of Guadalajara, Av. Vallarta 2602, Jalisco, Guadalajara C.P. 44100, Mexico; Martinez Zatarain, A., Institute of Astronomy/Meteorology, University of Guadalajara, Av. Vallarta 2602, Jalisco, Guadalajara C.P. 44100, Mexico; Almaguer Medina, J.F., Institute of Astronomy/Meteorology, University of Guadalajara, Av. Vallarta 2602, Jalisco, Guadalajara C.P. 44100, Mexico; Salzig, J., Department of Physical Oceanography, Woods Hole Oceanographic Institution, 360 Woods Hole Road, Woods Hole, MA 02543, United States",,"Whitehead, J.A. Timmermans, M.L.E. Lawson, W.G. Bulgakov, S.N. Martinez Zatarain, A. Almaguer Medina, J.F. Salzig, J.",,"2003",,"Laboratory studies with flows driven by both temperature and salinity differences illustrate the role of partial mixing in such flows. The results are compared to fundamental box model results. In the classic Stommel experiment, an experimental chamber is heated from below and exposed to a steady flux of salt water from above. The chamber is laterally connected to a reservoir of fresh isothermal water. This duplicates in the part well-known box models of deep ocean and estuarine circulation where both temperature and salinity determine the density in the chamber that drives a steady exchange flow between chamber and reservoir. Two locally stable modes of circulation are found within a well-known range of the temperature and salinity forcing: one mode is primarily temperature driven (the T-mode) and one mode is primarily salinity driven (the S-mode), with hysteresis and Stommel transitions between the two modes. New experiments with limited turbulent mixing and a narrow vertical slot in the sidewall between a laboratory test chamber and the reservoir produce a three-layer structure for the S-mode and a two-layer structure for the T-mode. Hysteresis and the Stommel transitions are considerably smaller than in the fully mixed box models. Results are consistent with the notion that the Arctic Ocean is presently in the layered S-mode.",,,,,,,,,"http://hdl.handle.net/20.500.12104/42472","http://www.scopus.com/inward/record.url?eid=2-s2.0-0037932748&partnerID=40&md5=e51aeb81c3f1939141460906e3e3f184",,,,,,"2",,"Journal of Geophysical Research C: Oceans",,"18 1",,"108",,"Scopus WOS",,,,,,,,,,,,"Laboratory studies of thermally and/or salinity driven flows with partial mixing. 1. Stommel transitions and multiple flow states",,"Article"
"45278","123456789/35008",,"Grosche, Ch., Institut for Theoretische Physik, Universityt Hamburg, Luruper Chaussee 149, Hamburg 22761, Germany; Pogosyan, G.S., Laboratory of Theoretical Physics, Joint Institute for Nuclear Research (Dubna), Dubna, Moscow oblast 141980, Russian Federation, Departamento de Matematicas CUCEI, Universidad de Guadalajara, Guadalajara, Jalisco, Mexico; Sissakian, A.N., Laboratory of Theoretical Physics, Joint Institute for Nuclear Research (Dubna), Dubna, Moscow oblast 141980, Russian Federation",,"Grosche Ch. Pogosyan, G.S. Sissakian, A.N.",,"2007",,"This is the second paper on the path integral approach of superintegrable systems on Darboux spaces, spaces of non-constant curvature. We analyze five and four superintegrable potentials in the spaces D III and D IV, respectively; these potentials were first given by Kalnins et al. We are able to evaluate the path integral in most of the separating coordinate systems, leading to expressions for the Green's functions, the discrete and continuous wavefunctions, and the discrete energy spectra. In some cases, however, the discrete spectrum cannot be stated explicitly because it is determined by a higher-order polynomial equation. We also show that the free motion in a Darboux space of type III can contain bound states, provided the boundary conditions are appropriate. We can state the corresponding energy spectrum and the wavefunctions. " 2007 Pleiades Publishing, Ltd.