Analysis of the RC catalog sample in the region overlapping with the regions of the FIRST and SDSS surveys: I. Identification of sources with the VLSS, TXS, NVSS, FIRST, and GB6 catalogs

Radio sources of the RC catalog produced in 1980--1985 at RATAN-600 radio telescope based on a deep survey of a sky strip centered on the declination of the SS 433 source are optically identified in the region overlapping with FIRST and SDSS surveys (about 132 square degrees). The NVSS catalog was used as the reference catalog for refining the coordinates of the radio sources. The morphology is found for about 75% of the objects of the sample and the ratio of single, double and multicomponent radio sources is computed based on FIRST radio maps. The 74, 365, 1400, and 4850 MHz data of the VLSS, TXS, NVSS, FIRST, and GB6 catalogs are used to analyze the shape of the spectra.Comment: 16 pages, 3 figure

On the way to Ithaka [1] : Commemorating the 50th Anniversary of the publication of Karl E. Weick’s The Social Psychology of Organizing

Karl E. Weick’s The Social Psychology of Organizing has been one of the most influential books in organization studies, providing the theoretical underpinnings of several research programs. Importantly, the book is widely credited with initiating the process turn in the field, leading to the ‘gerundizing’ of management and organization studies: the persistent effort to understand organizational phenomena as ongoing accomplishments. The emphasis of the book on organizing (rather than on organizations) and its links with sensemaking have made it the most influential treatise on organizational epistemology. In this introduction, we review Weick’s magnum opus, underline and assess its key themes, and suggest ways in which several of them may be taken forward

Whole blood lead levels are associated with radiographic and symptomatic knee osteoarthritis: a cross-sectional analysis in the Johnston County Osteoarthritis Project

Abstract Introduction Lead (Pb) is known to affect bone, and recent evidence suggests that it has effects on cartilage as well. As osteoarthritis (OA) is a highly prevalent disease affecting bone and cartilage, we undertook the present analysis to determine whether whole blood Pb levels are associated with radiographic and symptomatic OA (rOA and sxOA, respectively) of the knee. Methods The analysis was conducted using cross-sectional data from the Johnston County Osteoarthritis Project, a rural, population-based study, including whole blood Pb levels, bilateral posteroanterior weight-bearing knee radiography and knee symptom data. rOA assessment included joint-based presence (Kellgren-Lawrence (K-L) grade 2 or higher) and severity (none, K-L grade 0 or 1; mild, K-L grade 2; moderate or severe, K-L grade 3 or 4), as well as person-based laterality (unilateral or bilateral). SxOA was deemed present (joint-based) in a knee on the basis of K-L grade 2 or higher with symptoms, with symptoms rated based on severity (0, rOA without symptoms; 1, rOA with mild symptoms; 2, rOA with moderate or severe symptoms) and in person-based analyses was either unilateral or bilateral. Generalized logit or proportional odds regression models were used to examine associations between the knee OA status variables and natural log-transformed blood Pb (ln Pb), continuously and in quartiles, controlling for age, race, sex, body mass index (BMI), smoking and alcohol drinking. Results Those individuals with whole blood Pb data (N = 1,669) had a mean (±SD) age of 65.4 (±11.0) years and a mean BMI of 31.2 (±7.1) kg/m2, including 66.6% women and 35.4% African-Americans, with a median blood Pb level of 1.8 μg/dl (range, 0.3 to 42.0 μg/dl). In joint-based analyses, for every 1-U increase in ln Pb, the odds of prevalent knee rOA were 20% higher (aOR, 1.20; 95% CI, 1.01 to 1.44), while the odds of more severe rOA were 26% higher (aOR, 1.26; 95% CI, 1.05 to 1.50, under proportional odds). In person-based analyses, the odds of bilateral rOA were 32% higher for each 1-U increase in ln Pb (aOR, 1.32; 95% CI, 1.03 to 1.70). Similarly for knee sxOA, for each 1-U increase in ln Pb, the odds of having sxOA were 16% higher, the odds of having more severe symptoms were 17% higher and the odds of having bilateral knee symptoms were 25% higher. Similar findings were obtained with regard to ln Pb in quartiles. Conclusions Increases in the prevalence and severity measures for both radiographically and symptomatically confirmed knee OA (although statistically significant only for rOA) were observed with increasing levels of blood Pb, suggesting that Pb may be a potentially modifiable environmental risk factor for OA

Conflicto cooperativo y lenguaje evasivo

A partir de lo ocurrido el 11 de septiembre de 2001, la preocupación alrededor de la eficacia de las agencias de seguridad e inteligencia de los Estados Unidos de Norteamérica llevó a la formación de la Comisión 9-11. A esta comisión se le encargó que condujera una serie de interpelaciones para investigar "la verdad" y la posible culpabilidad por la falla de seguridad. Durante las interpelaciones muchos funcionarios públicos de alto rango del gobierno de los Estados Unidos -de administraciones pasadas y la administración presente- fueron citados para dar sus testimonios. Los intercambios verbales entre algunos de estos servidores públicos (secretarios de estado) y sus interlocutores-interrogadores pueden ser descritos como "evasivos", puesto que representan una serie de tácticas discursivas que producen patrones no lineales entre pares adyacentes. Así, a pesar de que hay prueba de que el uso de lenguaje indirecto y evasivo no es poco común en el discurso de los tribunales, la construcción de la evasión dentro de estos intercambios, especialmente entre los miembros del mismo partido, parece ser construido por ambas partes, ampliando la noción de cooperación para incluir la complicidad, y nos sugiere una definición más amplia de lo que puede ser considerado "apropiado". Así que, en estos intercambios entre participantes enfrentados -interrogadores y testigos (y en este caso en particular, republicanos y demócratas)- los testigos mantenían la apariencia de estar cooperando con el adversario, ya que cambiaban la dirección de las preguntas que se les formulaba, mitigando así la fuerza de la imposición, y desviando la responsabilidad de una acción que podría ser políticamente vergonzosa o dañina. Esta presentación usa como marco de trabajo el análisis de discurso crítico para examinar el discurso político mediatizado de estas interacciones, ilustrando cómo el conflicto cooperativo y su lenguaje evasivo concomitante necesitan un análisis del contexto y sus múltiples estratos.Fil: Berlin, Lawrence N.. Northeastern Illinois University