We describe two new species of salamanders of the genus Lineatriton, which occur as allopatric populations in the Sierra de Juárez, Oaxaca, and the Sierra de Los Tuxtlas, Veracruz, Mexico. The name Lineatriton lineolus (Cope) is restricted to populations in the Sierra Madre Oriental of Veracruz. The population in the Sierra de Los Tuxtlas, previously allocated to L. lineolus, is here described ...

We investigate whether selective intermarriage and endogenous ethnic identification interact to hide some of the intergenerational progress achieved by the Mexican-origin population in the United States. In part, we do this by comparing an "objective" indicator of Mexican descent (based on the countries of birth of the respondent and his parents and grandparents) with the standard "subjective" ...

Introduction. The demographic and epidemiological transition, as well the aging population has changed how older adults are treated in our healthcare system. Objective. To establish sociodemographic clinical characteristics of patients from Psychogeriatric Clinic (PC) Ramón de la Fuente Muñiz National Institute Psychiatry (INPRFM) seen between January 1, 2011, December 31, 2020. Method. Descrip...

BACKGROUND Folic acid can prevent up to 70% of neural tube defects (NTDs) if taken before pregnancy. Compared with other race-ethnicities, Hispanic women have higher rates of NTDs, lower rates of folic acid supplement use, and lower total folic acid intakes. OBJECTIVE The objective was to assess potential effects of fortifying corn masa flour with folic acid on Mexican American women and othe...

CONTEXT Migration to the United States from Mexico is increasing every year. Mexican immigrants tend to be poor, uninsured, monolingual Spanish speakers without adequate access to appropriate medical care. As a further barrier, many are also undocumented. PURPOSE This article describes a program developed to improve access to health care among Mexican immigrants in northern Colorado. METHOD...

Mexican and red wolves were both faced with extinction in the wild until captive populations were established more than two decades ago. These captive populations have been successfully managed genetically to minimize mean kinship and retain genetic variation. Descendants of these animals were subsequently used to start reintroduced populations, which now number about 40-50 Mexican wolves in Ar...

Mexico faces important demographic and epidemiological transitions with significant implications to patterns of disease, disability, and death. On the one hand, there are problems of underdevelopment and, on the other, the emerging challenges of the chronic and degenerative diseases of the industrialized world. For these diseases, prevention becomes a key strategy for alleviating a major burden...

We specify a set of equations defining a dynamic model of international migration and estimate its parameters by using data specially collected in Mexico. We then used it to project the a hypothetical Mexican community population forward in time. Beginning with a stable population of 10,000 people, we project ahead 50 years under three different assumptions: no international migration; constant...

Background. Mexico has the world's fifth largest population of amphibians and the second country with the highest quantity of threatened amphibian species. About 10% of Mexican amphibians lack enough data to be assigned to a risk category by the IUCN, so in this paper we want to test a statistical tool that, in the absence of specific demographic data, can assess a species' risk of extinction, ...

OBJECTIVE The census classification of Hispanic origin is used in epidemiological studies to group individuals, even though there is geographical, cultural, and genetic diversity within Hispanic Americans of purportedly similar backgrounds. We observed differences in our measures of adiposity between our two Mexican American populations, and examined whether these differences were attributed to...