ABSTRACT
Branchial cysts are a congenital anomaly in humans and other animal species. In this study, twenty commercially bred slaughtered pigs ranging from 120 to 150 days of age, sourced from different farms and lots, were found to have cysts in the oropharyngeal region at meat inspection despite the absence of clinical signs. Two cysts were selected for histopathological examination. The first cyst was surrounded by fibrous connective tissue and lined by a simple single cell layer of epithelium. The second cyst comprised a squamous pseudostratified to simple stratified epithelium, accompanied by a mild inflammatory infiltrate. This cyst was also surrounded by fibrous connective tissue and glands. The pathological diagnosis of branchial cysts in slaughtered pigs was established on the basis of their anatomical location and gross and microscopic findings.
Subject(s)
Branchioma , Head and Neck Neoplasms , Swine Diseases , Humans , Swine , Animals , Branchioma/veterinary , Head and Neck Neoplasms/veterinaryABSTRACT
Resumen La educación ambiental reconoce entre sus metas la promoción de factores individuales como las motivaciones y conocimientos para incentivar el cuidado del ambiente. El objetivo de este trabajo fue identificar los valores personales que guían una conducta pro-ambiental en dos países latinoamericanos. Mediante el uso de encuestas se evaluaron los valores biosféricos, altruistas, egoístas y hedonistas y las conductas de ahorro energético en Argentina (Estudio 1) y Colombia (Estudio 2). Los resultados apoyaron empíricamente la distinción teórica entre las cuatro orientaciones de valor. Fundamentalmente, indicaron que los valores biosféricos tienen un papel relevante en la explicación del comportamiento pro-ambiental en ambos países. Se discuten las implicancias de estos resultados para la educación ambiental formal e informal.
Abstract One of the objectives which underlies environmental education is the promotion of individual factors as motivations and knowledge to encourage environmental protection. The objective of this study was to determine the personal values which drive a pro-environmental behavior in two Latin American countries. By means of surveys, biospheric, altruistic, egoistic and hedonic values - as well as power saving behaviors - were evaluated in: Argentina (Study 1) and Colombia (Study 2). Results empirically supported the theoretical distinction between the four value orientations. Fundamentally, indicated that biospheric values play an important role in explaining pro-environmental behavior in both countries. We discuss implications of these results for formal and informal environmental education.
ABSTRACT
The aim of the study was to determine whether indoor lighting and colour would have any systematic impact on the mood of people working indoors. Earlier studies have mostly focused either on light, colour or windows in laboratory settings. The present study was carried out in real work environments at different seasons and in countries with different latitudes. A total of 988 persons completed all parts of the study. In the countries situated far north of the equator there was a significant variation in psychological mood over the year that did not occur in the countries closer to the equator. When all four countries were considered together, it became evident that the light and colour of the workplace itself also had an influence on the mood of persons working there. The workers' mood was at its lowest when the lighting was experienced as much too dark. The mood then improved and reached its highest level when the lighting was experienced as just right, but when it became too bright the mood declined again. On the other hand, the illuminance as measured in objective terms, showed no significant impact on mood at any time of the year. The relationship between mood and the distance to the nearest window was bimodal. The results also indicate that the use of good colour design might contribute to a more positive mood. It is suggested that in future research light and colour should be studied as parts of the more complex system making up a healthy building.
