In Black and Brown: Intellectuals, Blackness, and Inter-Americanism in Mexico after 1910

"In Black and Brown" examines how blackness and Africanness became constituent elements of Mexican culture after the Revolution of 1910. In refuting the common claim that black cultures and identities were erased or ignored in the post-revolutionary era, it argues that anthropologists, historians, (ethno)musicologists, and local intellectuals integrated black and, after 1940, African-descended peoples and cultures into a democratic concept of national identity. Although multiple historical actors contributed to this nationalist project, three intellectuals--composer and ethnomusicologist Gerónimo Baqueiro Foster (1898-1967), anthropologist Gonzalo Aguirre Beltrán (1908-1996), and city of Veracruz poet Francisco Rivera (1908-1994)--most coherently identified Africanness in Mexican history and culture. As these state and local intellectuals read ethnographic texts about African cultural retentions throughout the Western Hemisphere, they situated these cultural practices in specific Mexican communities and regional spaces. By tracing the inter-American networks that shaped these identities, "In Black and Brown" asserts that the classification of blackness and Africanness as Mexican was in conversation with the refashioning of blackness, Africanness, and indigeneity across the Americas and was part of the construction of the Western Hemisphere as a historical, cultural, and racial entity. More broadly, it questions the commonplace assumption that certain nations of the Americas are part of the African Diaspora while others are defined as indigenous

“Katherine Dunham’s Mexican Adventure”

Katherine Dunham was an internationally recognized dancer, but her time in Mexico often gets short mention in biographies. Theodore Cohen looks at her Mexican years in the contexts of race in both Mexico and the United States

Danielson, Michael S. Emigrants Get Political: Mexican Migrants Engage Their Home Towns. New York: Oxford University Press, 2018.

Book review

Incident Tuberculosis among Recent US Immigrants and Exogenous Reinfection

Mathematical models and molecular epidemiologic investigation support the argument that exogenous reinfection plays an important role in tuberculosis transmission in high-incidence regions. We offer additional data from tuberculosis cases among recent US immigrants which strengthen the claim that reinfection in areas of intense transmission is common

A Formal Approach to Modeling the Cost of Cognitive Control

This paper introduces a formal method to model the level of demand on control when executing cognitive processes. The cost of cognitive control is parsed into an intensity cost which encapsulates how much additional input information is required so as to get the specified response, and an interaction cost which encapsulates the level of interference between individual processes in a network. We develop a formal relationship between the probability of successful execution of desired processes and the control signals (additive control biases). This relationship is also used to specify optimal control policies to achieve a desired probability of activation for processes. We observe that there are boundary cases when finding such control policies which leads us to introduce the interaction cost. We show that the interaction cost is influenced by the relative strengths of individual processes, as well as the directionality of the underlying competition between processes.Comment: 6 pages, 3 figures, Conference pape

A Model of Blood Pressure, Heart Rate, and Vaso-Vagal Responses Produced by Vestibulo-Sympathetic Activation

Blood Pressure (BP), comprised of recurrent systoles and diastoles, is controlled by central mechanisms to maintain blood flow. Periodic behavior of BP was modeled to study how peak amplitudes and frequencies of the systoles are modulated by vestibular activation. The model was implemented as a relaxation oscillator, driven by a central signal related to Desired BP. Relaxation oscillations were maintained by a second order system comprising two integrators and a threshold element in the feedback loop. The output signal related to BP was generated as a nonlinear function of the derivative of the first state variable, which is a summation of an input related to Desired BP, feedback from the states, and an input from the vestibular system into one of the feedback loops. This nonlinear function was structured to best simulate the shapes of systoles and diastoles, the relationship between BP and Heart Rate (HR) as well as the amplitude modulations of BP and Pulse Pressure. Increases in threshold in one of the feedback loops produced lower frequencies of HR, but generated large pulse pressures to maintain orthostasis, without generating a VasoVagal Response (VVR). Pulse pressures were considerably smaller in the anesthetized rats than during the simulations, but simulated pulse pressures were lowered by including saturation in the feedback loop. Stochastic changes in threshold maintained the compensatory Baroreflex Sensitivity. Sudden decreases in Desired BP elicited non-compensatory VVRs with smaller pulse pressures, consistent with experimental data. The model suggests that the Vestibular Sympathetic Reflex (VSR) modulates BP and HR of an oscillating system by manipulating parameters of the baroreflex feedback and the signals that maintain the oscillations. It also shows that a VVR is generated when the vestibular input triggers a marked reduction in Desired BP