Strategic Information Acquisition in Networked Groups with "Informational Spillovers"

This paper develops a model of costly information acquisition by agents who are connected through a network. For a exogenously given network, each agent decides first on information acquisition from his neighbors and then, after processing the information acquired, takes an action. Each agent is concerned about the extent to which other agents align their actions with the underlying state. A new equilibrium notion, which is in the spirit of perfect Bayesian equilibrium, is proposed to analyze information acquisition decisions within networked groups. This equilibrium notion allows each agent to compute, when deciding about information acquisition, the extent to which changes in his information acquisition decision will affect his own perception of future expected payos. Agents anticipate and incorporate such changes in their information acquisition decisions. Both the efficient and the equilibrium information acquisition proles are characterized and the compatibility between them is related to the density of the network.Incomplete Information, Information Acquisition, Communication Networks, Informational Spillovers, Coordination

Notes on the Suboptimality Result by J. D. Geanakoplos and H. M. Polemarchakis (1986)

J. D. Geanakoplos and H. M. Polemarchakis (1986) prove the generic constrained suboptimality of equilibrium allocations in two period economies with incomplete markets. They perturb asset prices at equilibrium when the degree of market incompleteness equals one. However, since prices are not fundamentals that parameterize the economy, a generic result cannot be obtained in such a way. In these notes we provide complete and detailed version of their proof in which the arguments do not depend on the dimension of the market incompleteness and in which utilities and endowments are perturbed.Incomplete Asset Markets, Constrained Suboptimality, Transversality Theory

La imagen postmortem y el rito de los invitados: Un análisis de la escopía de la despedida

Es una buena descripción de la forma tradicional en la que regionalmente se organiza la ritualidad hacia la muerte, con un importante contenido analítico en torno a la cuestión de la muerte, desde la antropología y el psicoanálisis, principalmente como transdisciplinariedad con la que traban los estudios visuales.Es un trabajo terminal de grado en el cual se aborda la fotografía postmortem como una práctica que se mantiene socialmente, y que incluye actividades y formas de asumir el procesamiento de la pérdida en su relación con el manejo de las imágenes fotográficas

High Resolution Spectroscopy of the Hyades Giants

The four K0IIIHyades red clump giants, γ , δ , ϵ , and θ 1Tauri, are ideal candidates for cool star research. They are easily observable at a distance of only 47 pc and one star, ϵ Tauri, is a suspected Maunder minimum star. These stars also provide a useful opportunity to investigate the nature of the photospheric velocity field, and assess the effectiveness of a range of spectroscopic tools including the merits of the microturbulence-macroturbulence approach to the study of cool star spectra. High resolution (λ /Δ λ ∼ 100,000) exposures, taken from January 2001 to October 2008 in the 6250 Å region, are used to study photospheric properties of the four Hyades giants, focusing on the three signatures of stellar granulation (Gray 2009): line broadening, line asymmetry, and the variation of line core velocities with depth. Values of projected rotational velocity and macroturbulence are obtained. Microturbulence shows a clear tendency to increase with mean photospheric height of formation. Also included are estimates of temperature differences between granular and intergranular regions using flux deficit, and temperature differences between the program stars using line-depth ratios. Measures of convective overshoot velocities, such as the velocity scale are used together with the rotational velocity to estimate the Rossby number for each program star. The results for δ Tauri are inconclusive, however, ϵ Tauri shows a larger Ro than the more active γ and θ 1Tauri, a value which is similar to that of the Sun, and consistent with its previously reported low level of magnetic activity. ϵ Tauri appears to be more massive the other Hyades giants and may have evolved beyond the coronal boundary into an inactive dynamo stage. The contrast of this scenario with conditions in the Sun is discussed

Carcinoma gengival: um relatório de caso

Squamous-cell carcinoma is a malignant epithelial neoplasm characterized by various clinical manifestations. Present study aimed to report a case of gingival squamous-cell carcinoma in a who patient did not present risk factors associated with the referred neoplasm. A 95-year-old female, attended dental services exposing a rapidly growing, painful proliferative lesion of 6 months of evolution, located in vestibular marginal gingiva, which affected teeth # 33-32-31-43-42-41. According to clinical symptoms and differential diagnosis (central giant cell granuloma and malignant neoplasm), an excisional biopsy was obtained. Diagnosis of referred carcinoma was obtained after three days of patient decease consequent to a severe dyspnea case. Gingival squamous-cell carcinoma is a condition that usually has a good prognostic when diagnostic and treatment are established on time. This study reports a clinical case of a patient who died before having an opportunity to access treatment.El carcinoma de células escamosas o escamocelular es una neoplasia epitelial maligna que se caracteriza por que sus manifestaciones clínicas son variadas. El objetivo de este artículo es presentar el caso clínico de un paciente con carcinoma gingival de células escamosas, sin antecedentes de factores de riesgo comunes para el desarrollo de esta neoplasia. Mujer de 95 años con un historial de 6 meses de una lesión proliferativa dolorosa y de rápido crecimiento en la encía marginal vestibular de los dientes # 33-32-31-43-42-41. De acuerdo con los signos y síntomas clínicos, se da una impresión clínica de carcinoma gingival y un diagnóstico diferencial de granuloma central de células gigantes, se tomó una biopsia por escisión de la lesión. El diagnóstico fue de carcinoma de células escamosas. Después de tres días, la paciente falleció en el hospital por un cuadro de disnea severa que le produjo un paro cardiorrespiratorio. El carcinoma gingival de células escamosas es una afección con un buen pronóstico cuando se diagnostica y trata a tiempo, este articulo informó un caso de un paciente que falleció antes de realizar un tratamiento a lesión tumoral.O carcinoma de células escamosas é uma neoplasia epitelial maligna caracterizada por manifestações clínicas variáveis. O objetivo deste estudo foi relatar um caso de carcinoma espinocelular, no qual o paciente não apresentava fatores de risco para o desenvolvimento dessa neoplasia. Uma mulher de 95 anos de idade foi observada com 6 meses de história de uma lesão proliferativa dolorosa de crescimento rápido na gengiva marginal vestibular na zona dos dentes # 33-32-31-43-42-41. Assim, diante dos sintomas clínicos e do diagnóstico diferencial de granuloma central de células gigantes e neoplasia maligna, foi obtida uma biópsia excisional da lesão.Foi feito o diagnóstico de carcinoma espinocelular. Após três dias, o paciente falecido no hospital apresentou dispnéia grave. O carcinoma de células escamosas gengival é uma condição com bom prognóstico quando diagnosticado e tratado precocemente. Este estudo relatou um caso de paciente que morreu antes de realizar um tratamento tumoral

The space of solutions to the Hessian one equation in the finitely punctured plane

We construct the space of solutions to the elliptic Monge-Ampere equation det(D^2 u)=1 in the plane R^2 with n points removed. We show that, modulo equiaffine transformations and for n>1, this space can be seen as an open subset of R^{3n-4}, where the coordinates are described by the conformal equivalence classes of once punctured bounded domains in the complex plane of connectivity n-1. This approach actually provides a constructive procedure that recovers all such solutions to the Monge-Ampere equation, and generalizes a theorem by K. Jorgens.Comment: 14 pages, 3 figure

ALTERNATIVE CYCLING STRATEGIES FOR SHRIMP FARMING IN ARID ZONES OF MEXICO: DEALING WITH RISK AND UNCERTAINTY

Northwest Mexican coastal waters have large seasonal temperature variations, high salinity, and are subject to intense solar radiation. Shrimp farms in this region have been using two annual production strategies; six- to eight-month cycle with one complete harvest and several partial harvests, or two, three- to four-month cycles with complete harvests. The preferred strategy depends on two uncertain variables; shrimp growth, which varies across the region, and market price, which varies across the season. A bioeconomic model was used to compare the economic yield of the two cycling strategies for three zones across the region, under three alternative average annual temperatures states. Simple decision theory criteria are used to show that the two-cycle strategy dominates the one-cycle strategy in the Bahia de La Paz zone. Results for central and northern Sonora are conditional on temperature.Resource /Energy Economics and Policy,

Intersectionality and Possibility in the Lives of Latina/o/x Children of Immigrants: Imagining Pedagogies Beyond the Politics of Hate

I first met Alma1 when she was five years old and a kindergarten student in a multi-age Spanish-English dual language classroom in southern California. Alma is the child of immigrants from the Mexican state of Oaxaca. Somewhat shy and soft spoken, she nonetheless had many friends and seemed eager to engage with her peers in class. In interviews with me over the first few years of a longitudinal study that I was conducting at her school, she spent a great deal of time sharing the details of her rich literate life. Among other things, Alma loved poetry. In addition to writing poems in her writer’s notebook for school, she also kept a separate notebook in which she wrote poetry at home. Her face lit up as she told me that she often shared these poems with her father, who she said also wrote poetry. Alma seemed to have an especially strong relationship with her father, and much of the poetry that she shared with me focused on him. She also revealed that her father worked at an Italian restaurant, and that he would often teach her Italian words and phrases that he had learned on the job. She seemed proud of knowing them, and they sometimes popped up in the writing she did both at home and in school. When I met Samantha, she was a first grader in Alma’s multi-age kindergarten/first grade classroom. At six years of age, she was already very proficient in English, which she reported speaking with her older siblings, and Spanish, which she sometimes spoke with her mother and with some friends and teachers at school. In an interview that I conducted with her in second grade, Samantha told me that she also spoke sign language at home with a d/Deaf uncle who lived with her. This revelation alerted me to yet another impressive layer of her expansive linguistic repertoire. Yet being multilingual was not the only thing that stood out about this young child. In addition to being a polyglot, Samantha was also a very kind person and a precociously deep and critical thinker who seemed to be motivated by both genuine intellectual curiosity and a profound commitment to fairness and justice

Entering the Dance Input/Output Machine

My goal for this project is to provide an exploration into the intersection of Computer Science and Dance. Although there are many avenues of exploration at this intersection, I decide to focus on the topic of movement, specifically the idea of movement data. With this idea, we break it apart into two subtopics: movement input and output. Throughout this project, we mainly focus on the side of input, uncovering the nuance of movement language and the information that comes with it to understand the process of motion capture. We also demonstrate the use of movement input and how others may make use of the recorded information. This is all to then give us more context in understanding movement as output