Papeles de POBLACIÓN No. 45 CIEAP/UAEM Authors Juan Campos Alanís Master in Regional Studies by the Instituto de Investigaciones Sociales «Dr. José María Luis Mora» (2001), and currently is studying the Doctorate program in Geography in the Universidad Nacional Autónoma de México. He is a fulltime professor in the Faculty of Geography of the Universidad Autónoma del Estado de México where he develops research subjects related to poverty, social margination and accessibility to services. Among his most recent publications are: «Análisis al Programa de Educación, Salud y Alimentación en el municipio de San Felipe del Progreso, Estado de México», in Papeles de Población núm. 35, January-March 2003, and recently he finished, in collaboration with Carlos Garrocho the research Accesibilidad a servicios de salud a población abierta mayor de 65 años en el área metropolitana de Toluca (in process of publication). Within the public administration sphere, he worked for three years in the San Luis Potosí State Government, where he participated in the modernization of the state development planning system. E-mail address: juan_campos70@hotmail.com Dídimo Castillo Fernández Sociologist, with a Masters degree in Social Sciences by the Latin American Faculty of Social Sciences, he also holds a Doctorate in Social Sciences with the specialization in Population Studies in the Colegio de Mexico. Currently he is professor-researcher from the Centro de Investigación y Estudios Avanzados de la Población of the Universidad Autónoma del Estado de México. He coauthored the books: Marginación y pobreza en México (Editorial Ariel), Reestructuración económica y desarrollo en América Latina, Colección: El debate latinoamericano actual (UNAM y Siglo XXI Editores) and of Desigualdades na América Latina. Novas perspectivas analíticas (Universidade Federal do Rio Grande do Sul, Brasil). He is the director of the Authors (Universidade Federal do Rio Grande do Sul, Brasil). He is the director of the magazine Papeles de Población. Funding member of the Asociación Latinoamericana de Población, ALAP; ex-member of the Directive Council of the Asociación Latinoamericana de Sociología, ALAS. Currently he is member of the Directive Council of the Sociedad Mexicana de Demografía, Somede. E-mail address: didimo99@prodigy.net.mx Carlos Garrocho Rangel Master in Urban Development by El Colegio de Mexico 81987) and Doctor in Social Geography by the Exeter University (England, 1992). He has done specialized studies in the Geography Department of the University of Glasgow (Scotland, 1997) and in the AOTS, Tokyo, Japan (2002). He is a professorresearcher of the El Colegio Mexiquense since 1986 and member of the National Research System (National research level I) since 1992. From 1997 to 2003 he worked as a secretary of Development Planning of the San Luis Potosí Governemt. His research lines are the use and spatial planning of private and public services, the design of dynamic information systems by Internet and the design and evaluation of public policies (including the installation of quality systems in the public administration). Among his most recent publications are: «La teoría de interacción espacial como síntesis de las teorías de localización de actividades comerciales y de servicios», in Economía, Sociedad y Territorio, July-December, 2004; «Localización, localización, localización: el manejo del espacio en la competencia entre centros comerciales», Estudios Demográficos y Urbanos, (in press); La dimensión espacial de la competencia comercial, El Colegio Mexiquense, 2003 (en colaboración con Tania Chávez y José A. Álvarez); San Luis Potosí: visión 2025, Universidad Politécnica de San Luís Potosí, (coordinador en colaboración con Antonio Loyola), 2005; and Once cuentos de amor y desamor (para aprender técnicas de calidad total), El Colegio Mexiquense-Universidad Autónoma del Estado de México, (in collaboration with Francisco Segura and Roberto Ruiz), 2005. Recently he finished the research Accesibilidad a servicios de salud a población abierta mayor de 65 años en el área metropolitana de Toluca (which is in process of publication). E-mail address: carlosgarrochorangel@yahoo.com.mx july/september 2005 Papeles de POBLACIÓN No. 45 CIEAP/UAEM Cecilia Gayet She is a professor-researcher of the Latin American Facutly of Social Sciences (FLACSO) Campus Mexico and Coordinator of Surveys of the Centro Nacional para el Control y Prevención del VIH/SIDA (Censida) of the Ministry of Health. Graduate from the Doctorate in Population Studies of El Colegio de Mexico, MA in Demography by El Colegio de Mexico and MA in Social Sciences by FlacsoMexico. Currently she is the director and main researcher of the Project: «Site: Mexico. HIV Prevalence and Sexual Behavior in High-Risk Populations: Male and Female Sex Workers, Men who have Sex with Men, Mobile Population/ Long Distance Truck Drivers, IDUs, Youth», of Flacso, Censida and Family Health International. She is member of the researchers’ body in medical sciences of the Health Ministry. Among her most recent publications are «Migration and AIDS in Mexico: An Overview Based on Recent Evidence», in JAIDS Journal of Acquired Immune Deficiency Syndromes, 37 Supplement 4, 2004, co-authoring with C. Magis and other authors; «A New Approach HIV/ AIDS Surveillance: the Mexican Experience», in Collection of Free Papers from XV International AIDS Conference, Medimond International Proceedings, 2004, coauthoring with C. Magis and other authors; and «Las fronteras del riesgo», chapter of the book Fernando Lozano (coord), El amanecer del siglo y la población mexicana, UNAM-CRIM; México, Somede, 2004. E-mail address: cgayet@flacso.edu.mx Fátima Juárez Professor-researcher of the Centro de Estudios Demográficos y de Desarrollo Ambiental (CEDUA) of El Colegio de México. Ph. D. in Demography by the London University. She has occupied positions in international organisms, such as the director of health projects and policies in the United Nations, New York, and she has worked in European research centres, developing researches on sexual and reproductive health, in particular, of that of the adolescents. Similarly, she is the director of the International Scientific Committee of the International Union for the Scientific Study of population (IUSSP) on adolescents and their passing to the adult life. She is member of the National Research System. Among her recent publications are: «Young, unmarried men and sex: do friends and partners shape risk behaviour?», in Culture, Health and Sexuality, vol. 6, Núm. 5, Septiembre-Octubre, 2004, coauthoring with C. Marston y Cecilia Authors Gayet; «Adolescent reproductive health in Latin America among low-income groups», in Poverty, Fertility and Family Planning (Pauvrete, Fecondite et Planification Familiale), Ed. Éric Vilquin, CICRED, París, 2004; «Uso del condón entre adolescentes mexicanos para la prevención de las infecciones de transmisión sexual», en Salud Pública de México, Vol. 45, Suplemento 5, 2004, co-authoring with C. Gayet y otros autores; «Safe sex in early adolescence: Factors influencing boy’s age at first intercourse and condom use in the shantytowns of Recife (Brazil)», Studies in Family Planning (2005). E-mail address: fjuarez@colmex.mx Hernán Manzelli BA and professor of sociology of the Buenos Aires University. Magister of the Master in Social Sciences and Health, Flacso/Cedes. Assistant researcher in the Centro de Estudios de Población and teacher in the Sociology Degree of the Univertity of Buenos Aires. Recently he has published co-authoring with Pecheny, M and Jones, D. «Experiences of stigma in people living with HIV/ AIDS and/or Hepatitis C in Argentina», in Toro-Alfonso J. y Varas-Díaz N., International Perspectives on AIDS Stigma, Puerto Rico, in press prensa, 2005, «Como un juego: la coerción sexual vista por varones adolescentes», in E. A. Pantelides and E. López, Varones latinoamericanos. Estudios sobre sexualidad y reproducción, Buenos Aires, Paidós, 2005. E-mail address: hernan@cenep.org.ar Daniel Nehring Candidate to Ph. D. in Sociology by the University of Essex, United Kingdom, MSc in Methods of Sociological Research by the University of Essex (2003) and BSc in Sociology by the University of Essex (2002). He had a residence as visiting researcher in El Colegio de Mexico from November 2004 to October 2005 and in the Centro de Investigaciones y Estudios Superiores en Antropología Social from September 2004 to June 2005. Research subjects: cultural constructions of couple relations among young academics and professionals in Mexico City (project financed by the Economic and Social Research Council (ESRC) of the United Kingdom and the University of Essex). E-mail address: dfnehr@essex.ac.uk july/september 2005 Papeles de POBLACIÓN No. 45 CIEAP/UAEM Edith Alejandra Pantelides BSc in Sociology by the University of Buenos Aires and Ph.D in Sociology (demography) by the University of Texas (Austin). Specialized in demography in the Centro Latinoamericano de Demografía (Celade) and in the University of Princeton (US). Titular researcher of the Centro de Estudios de Población/ Cenep and independent researcher of the Conicet. This year she has published La medición de un concepto. reflexiones a partir de una investigación sobre coerción sexual, in Álvarez Vázquez, L. and Rodríguez, A. (collectors), La investigación en salud sexual y reproductiva. Propuestas metodológicas y experiencias prácticas, and co-authoring with E. López «Introducción», in Varones latinoamericanos. Estudios sobre sexualidad y reproducción. Buenos Aires, Paidós. E-mail address: eap@cenep.org.ar Virgilio Partida Bush Actuary by the Universidad Nacional Autónoma de México and MSc in demography by El Colegio de México. He was a researcher in the Centro de Estudios Demográficos y de Desarrollo Urbano of El Colegio de México and currently he is the general director of Sociodemographic Studies and Prsopective from Conapo. He is a professor in the Faculty of Sciences of UNAM and El Colegio de Mexico, among others. Honor Professor of the Interamerican Centre of Social Security Studies. Author of 16 books, among them; Migración interna. INEGI, El Colegio de México and IISUNAM, 1994; La tabla de vida activa. El Colegio de México, 1996; and Índices de desarrollo social en las etapas del curso de vida 2000. Consejo Nacional de Población, México, 2003 (with Ricardo Aparicio); as well of more than 100 articles in specialized magazines and books chapters. He is a funding member of the Mexican Society of Demography, of which he has been president and vice-president. He is also a member of the National Research System. E-mail address: virgilio.partida@conapo.gob.mx Leticia Robles Silva Pd. D. in Social Sciences by th eUniversity of Guadalajara-CIESAS Occidente. She is a professor-researcher in the Unversity of Guadalajara. Recent publications: Authors Robles L. (2003), «Doble o triple jornada: el cuidado a los enfermos crónicos», in Estudios del Hombre; 17, Robles L. (2003), «Algunas falacias sobre la vejez: una reflexión desde el cuidado», in Travesaño año 2000. Temas de población. 12, Robles L. (2004), «El cuidado en el hogar a los enfermos crónicos: un sistema de autoatención», in Cadernos de Saúde Pública; 20(2). E-mail address: lrobles@cucs.udg.mx Ana Luz Torres Martínez B. Sc. In Economy by the Autonomous University of Baja California (UABC) and MSc in Demography by El Colegio de la Frontera Norte. Currently she is studying the Doctorate in Economic Sciences of the Autonomous University of Baja California. E-mail address: antorres@colef.mx Eunice Danitza Vargas Valle B.Sc. in History by the Autonomous University of Baja California and M.Sc. in Demography by El Colegio de la Frontera Norte. Currently she is studying the doctorate in Sociology with specialty in demography in the University of Texas, Austin. E-mail address: eunicev@mail.utexas.edu Fortino Vela Peón Economist and demographer. Currently he Works as a professor-researcher of the Universidad Autónoma Metropolitana Xochimilco (UAM-X), in the Economic Production Department. His research lines are in the application of quantitative methods to Demography and in development and research subjects. His most recent publications are: «Un acto metodológico básico de la investigación social: la entrevista cualitativa», in María Luisa Tarrés (coord.) Observar, escuchar y comprender sobre la tradición cualitativa en la Investigación social, Miguel Ángel Porrúa, 2004; «La productividad por edad en México: un enfoque económico-demográfico», en Margarita Fernández y Magdalena Saleme (comp.), Dimensión social y humana del crecimiento económico, UAM, 2004. In collaboration with Dídimo Castillo Fernández, «Puebla: situación demográfica y condiciones de bienestar. Los desafíos para la política social» in Jaime Ornelas july/september 2005 Papeles de POBLACIÓN No. 45 CIEAP/UAEM (coord.) Visión de Puebla, Colección Pensamiento Histórico, BUAP, 2004. He has lectured in the Latin American Faculty of Social Sciences (Mexico), El Colegio de México, El Colegio de la Frontera Norte and in the UAM-X. Similarly, he has participated in academia events and projects at national and international levels. E-mail address: fvela@correo.xoc.uam.mx Carlos Welti Chanes He is an economist, sociologist and demographer by the University of Chicago. He is a titular researcher of the Instituto de Investigaciones Sociales de la Universidad Nacional Autónoma de México (UNAM). He is member of the National Research System since it was funded. He has been president of the Mexican Society of Demography, general coordinator of the Population Activities Latin American Program and vice-rector of Research and Postgraduate Studies of the University of Puebla. He is a professor of quantitative analysis of the postgraduate program in the Faculty of Social and Political Sciences of the UNAM. He is a member of the Administration Council of the Mexican Association of Family Planning (Mexfam) and heads its technical committee. He has published a large number of works on fecundity. In one of his most recent works he analyzes the information from the 2003 National Reproductive Health Survey, where he shows the possible overestimation of the fecundity descent in Mexico during the last years. E-mail address: welti@servidor.unam.mx Elmyra Ybáñez Zepeda She is a professor-researcher of El Colegio de la Frontera Norte, Ph. D. in Population Studies of El Colegio de México and MSc in Demography of the same institution. Among her research subjects are the population projections and demographic aging. She has participated in different research projects related to aging and health in Mexico and currently she is coordinating a project along with Steven Wallace from UCLA called «Relaciones transfronterizas y atención a la salud en Tijuana». E-mail address: elmyra@colef.mx