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|Title:||Cross-shelf transport of sub-thermocline nitrate by the internal tide and rapid (3-6h) incorporation by an inshore macroalga|
|Abstract:||We examined the shear-banding flow phenomenon in polymer-like micellar solutions with the Bautista-Manero-Puig (BMP) model, which predicts that upon decreasing the shear banding intensity parameter of this model, which correspond to increasing temperature, concentration or varying salt-to-surfactant concentration, a non-equilibrium critical line is reached. By using non-equilibrium critical theory, which we obtain a set of symmetrical curves which are the normalized stress versus normalized shear rate flow curves, similar to gas-liquid transitions around the critical point. In addition, we derived the non-equilibrium critical exponents and found that them are no classic values. " 2008 American Institute of Physics.",,,,,,"10.1063/1.2964624",,,"http://hdl.handle.net/20.500.12104/40418","http://www.scopus.com/inward/record.url?eid=2-s2.0-51149094129&partnerID=40&md5=bdd7631d56dd7af8ed68b618a86604e8",,,,,,,,"AIP Conference Proceedings",,"174|
176",,"1027",,"Scopus",,,,,,"Bautista-Manero-Puig model; Non-equilibrium critical theory; Shear-banding flow",,,,,,"Critical phenomenon analysis of shear-banding flow in polymer-like micellar solutions",,"Conference Paper" "42187","123456789/35008",,"Morini, M.A., Dept. of Chem. and Chem. Engineering, Universidad Nacional del Sur, Bahia Blanca, Argentina; Schulz, P.C., Dept. of Chem. and Chem. Engineering, Universidad Nacional del Sur, Bahia Blanca, Argentina; Puig, J.E., Faculty of Chemistry, Universidad de Guadalajara, Guadalajara, Mexico",,"Morini, M.A.
Puig, J.E.",,"1996",,"Dodecyltrimethylammonium bromide Dodecyltrimethylammonium hydroxide water mixtures were studied with ion-selective electrodes, and the aggregation behavior, degree of ionization of the micelles and the distribution constants of bromide and hydroxide ions between water and micelles were found, showing that some suppositions about the interpretation of micellar catalysis are incorrect, and these interpretations must be revised. The results support the mass action model for the theoretical treatment of micellar catalysis.",,,,,,,,,"http://hdl.handle.net/20.500.12104/40408","http://www.scopus.com/inward/record.url?eid=2-s2.0-0001597524&partnerID=40&md5=d54250270751f0751a3285a9d80d2224",,,,,,"7",,"Colloid and Polymer Science",,"662
668",,"274",,"Scopus",,,,,,"Counterion distribution constants; Critical micelle concentration; Hydroxide surfactants; Micellar catalysis; Micellization",,,,,,"Counterion specificity of the micelle surface and its implications on micellar catalysis",,"Article" "42194","123456789/35008",,,,,,"2010",,,,,,,,"10.1021/ac50014a020",,"0749-0208","http://hdl.handle.net/20.500.12104/40415","http://dx.doi.org/10.2112/1551-5036-26.2.392",,,,"Coastal Education and Research Foundation",,,,"Journal of Coastal Research",,"392
394",,,,"BioOne",,,,,,,,,,,,"Outside Reviewers 2009",,"Journal Article" "42214","123456789/35008",,"Torres López, T.M., Universidad de Guadalajara, Guadalajara, Mexico; Quinteros, C.R., Universidad Católica del Maule, Talca, Chile; Lozano González, A.F., Universidad de Guadalajara, Guadalajara, Mexico; Munguía Cortés, J.A., Doctorado en Ciencias de la Salud Pública, Universidad de Guadalajara, Guadalajara, Mexico",,"Torres Lopez, T.M.
Lozano Gonzalez, A.F.
Munguia Cortes, J.A.",,"2010",,"Objective: To understand the cultural dimensions of HIV/AIDS among adolescent students. Methods: A cognitive anthropological study was undertaken in Cochabamba (Bolivia), Talca (Chile) and Guadalajara (Mexico), during 2007 and 2008. A total of 184 teenagers (from 14 to 19 years old) were selected by purposeful sampling at secondary schools in each country. Free association lists and pile sorts were utilized. Terms associated with the concept of HIV/AIDS and groups of conceptual dimensions were investigated. Subsequently, consensus analysis was performed using factorial principal components and dimensional analysis through hierarchical clusters and multidimensional scales. Results: The differences between the country contexts were in the degree of consensus in relation to the term HIV/AIDS, which was greater in Cochabamba. In Talca and Guadalajara the youths mentioned metaphors of fighting against HIV/AIDS, while in Cochabamba participants talked about help, support and love that infected people should receive. The similarities among conceptions by youth from the three countries were: the risk factors (unprotected sexual practice and contact with specific population groups), the consequences (physical and social death, being the latter understood as social rejection of people living with HIV/AIDS) and the prevention of illness (based on information and condom use). Conclusions: For adolescent students, HIV/AIDS is a disease caused by sexual practices and drug use and involves harm, pain and death. HIV/AIDS prevention programs for adolescents should promote science based information on the topic and not concentrate only on the emotional and social consequences of HIV/AIDS.",,,,,,"10.1590/S0034-89102010000500007",,,"http://hdl.handle.net/20.500.12104/40435","http://www.scopus.com/inward/record.url?eid=2-s2.0-77958592026&partnerID=40&md5=3c8f81d13072bf57ca9bf6f16ae457d3
http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&D=med5&AN=20877920",,,,,,"5",,"Revista de Saude Publica",,"820
MEDLINE",,,,"Index Medicus;Acquired Immunodeficiency Syndrome/eh [Ethnology];Adolescent;Bolivia/ep [Epidemiology];Chile/ep [Epidemiology];Cross-Cultural Comparison;Female;HIV Infections/ep [Epidemiology];HIV Infections/eh [Ethnology];HIV Infections/pc [Prevention & Control];HIV Infections/px [Psychology];Health Knowledge, Attitudes, Practice;Humans;Male;Mexico/ep [Epidemiology];Students/sn [Statistics & Numerical Data];Young Adult",,"Acquired immunodeficiency syndrome; Adolescent; Anthropology; Attitudes; Cultural; Cultural characteristics; Health knowledge; Practice; Prevention & control; Qualitative research; Public, Environmental & Occupational Health",,,,,,"Cultural conceptions of HIV/AIDS among teenagers in Bolivia, Chile and Mexico",,"Article" "42203","123456789/35008",,"Ladah, L.B., CICESE, Department of Biological Oceanography, Carretera Ensenada-Tijuana #3918, Zona Playitas, Ensenada, Baja California, CP 22860, Mexico; Filonov, A., Physics Department, University of Guadalajara, Blvd. Marcelino García Barragán 1421, Guadalajara, Mexico; Lavín, M.F., CICESE, Department of Physical Oceanography, Carretera Ensenada-Tijuana #3918, Zona Playitas, Ensenada, Baja California, CP 22860, Mexico; Leichter, J.J., Integrative Oceanography Division, Scripps Institution of Oceanography m/c 0227, 9500 Gilman Drive, La Jolla, CA 92093-0227, United States; Zertuche-González, J.A., Universidad Autónoma de Baja California, Instituto de Investigaciones Oceanológicas, Km 106 Carretera Tijuana-Ensenada, Ensenada, Baja California, CP 22860, Mexico; Pérez-Mayorga, D.M., CICESE, Department of Biological Oceanography, Carretera Ensenada-Tijuana #3918, Zona Playitas, Ensenada, Baja California, CP 22860, Mexico",,"Ladah, L.B.
Perez-Mayorga, D.M.",,"2012",,"During summer in shallow waters off Baja California, Mexico, the internal tide is a dominant thermal feature of the water column. However, its importance for sub-thermocline nutrient provision to benthic macroalgae is unknown. In order to determine if internal motions provide nutrients to macroalgae in summer, Ulva lactuca was outplanted at inshore stations for short (3 and 6. h) intervals, at the surface, 5 and 10. m depth, and tissue nitrogen content was measured before and after each deployment. Concurrently temperature, currents, and nutrients were measured using moored thermistors, current profilers, CTDs, Niskin bottles, and an in-situ UV absorbance nitrate sensor (ISUS). Discrete pulses of cool, nutrient-rich water were horizontally displaced at least 4. km on the shelf and shoaled more than 20. m depth at the semidiurnal frequency, resulting in more than a 10-fold change in the concentration of nitrate. Inshore, tissue nitrogen of Ulva outplants increased significantly during longer exposures to this cool water. At this site, the semidiurnal signal dominates water column temperature fluctuations from April to November, with summer showing the greatest cooling (up to 5 °C) in a one-hour period. We estimated that 11% of the days of a year show internal waves that would cause a significant change in nutrient availability to macroalgae at 5. m depth. This study supports the hypothesis that nitrate can reach and be rapidly incorporated by inshore macroalgae such as Ulva through transport forced by the internal tide, and that even very short (<1. h) nutrient pulses in nature are reflected in macroalgal tissue. We propose that at this site, the internal tide provides a significant, yet understudied, high frequency nutrient source to inshore primary producers, particularly in summer. " 2012 Elsevier Ltd.
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