Postglacial paleoecology and effects of European settlement on the environment of Lake Hunger and Lake Lisgar, Southwestern Ontario /

This investigation has three purposes I to make a comparative chemical study on sediment cores collected for Lake Lisgar (man-made lake in an urban center) and Lake Hunger (natural basin in a rural community) encompassing the time since European settlement I to determine the postglacial chemical history of Lake Hunger, and to determine the vegetational history of the Lake Hunger area from postglacial time to the present. The minus 80 mesh fraction of 108 soil samples and 18 stream sediment samples collected in the vicinity of Lakes' Lisgar and Hunger were analyzed for cold hydrochloric acid soluble lead, zinc, nickel, cobalt, copper, aluminum, sodium, potassium, calcium, magnesium, iron and manganese. Lacustrine sediments from 5 boreholes in the Lake Lisgar basin were collected. Boreholes 1, 2, 3, and 4 were analyzed for palynological and chemical information and Borehole 5 was subjected to pollen and ostracode analysis. Lacustrine sediments from 6 boreholes in the Lake Hunger basin were collected. Palyno- -logical and chemical analysis were performed on Boreholes 1, 2, 3, 4, and 6 and Borehole 5 was analyzed for pollen. In addition, radiocarbon dates were obtained on sediment samples from Boreholes 4 and 5. A total of 8 surface samples were collected from the margins of the Lake Hunger basin and these were chemically analyzed in the laboratory. All of the lacustrine sediments were ashed and analyzed for cold hydrochloric acid soluble lead, zinc, nickel, cobalt, copper, aluminum, sodium, potassium, calcium, magnesium, iron and manganese using a Perkin Elmer 40) Atomic Absorption spectrophotometer. The results . obtained for the 12 elements were expressed as parts per million in dry sediments. It was found that man's influence on the element distribution patterns in the sediments of Lake Lisgar appeared to be related to his urbanizing developments within the lake vicinity, whereas, the rural developments in the vicinity of lake Hunger appeared to have had little effect on the element distribution patterns in the lake sediments. The distribution patterns of lead, zinc, nickel, cobalt, aluminum, magnesium, sodium and potassium are similar to the % ash curve throughout postglacial time indicating that the rate of erosion in the drainage basin is the main factor which controls the concentration of these elements in the sediments of Lake Hunger. The vegetational history, from palynological analysis, of Lake Hunger from postglacial time to the present includes the following stages: tundra, open spruce forest, closed boreal forest, deciduous forest and the trend towards the re-establishment of pine following the clearing of land and the subsequent settlement of the Lake Hunger area by European settlers. The concentrations of some elements (cobalt, nickel, iron, manganese, calcium, magnesium, sodium and potassium) in the sediments of Lake Hunger appears to be higher during pre-cultural compared to post-cultural times. At least one complete postglacial record of the chemical history within a lake basin is necessary in order to accurately assess man's effects on his environment.

A Struggle Against the Odds: Understanding the Lived Experiences of Canadian Hockey League (CHL) Players

The purpose of this research was to examine the experiences of Canadian Hockey League (CHL) players using a Foucauldian theory-based analysis. Specifically, this thesis contends that power relations between players and CHL hockey authorities need to be critically assessed. The CHL is the world’s leading developmental junior ice hockey league. Comprised of 1,400 hockey players, aged 15–21 years old on 60 teams through three divisions, the CHL is a primary supplier of talent for the National Hockey League. In the last year, several issues surrounding unjust practices within the CHL have been brought to the forefront, indicating that the potential for harassment, abuse, and exploitative practices are heightened in an organization such as the CHL, where profits are extracted from the labour of youth. Ultimately, this study is designed to contribute to both scholarly and public audiences, providing a critical analysis of the welfare of youth in the CHL.

The environment as a tool for health towards a definition of the individual boundary process = L'environnement comme outil de santé vers une définition du processus de gestion des frontières personnelles

Mémoire numérisé par la Division de la gestion de documents et des archives de l'Université de Montréal

The Mobilization against the 2005 treaty establishing a constitution for Europe : a French mobilization for another Europe

Why did a majority of French voters reject the Treaty Establishing a Constitution for Europe in the 2005 referendum? We argue here that the collective mobilization of the left-wing ‘No’ camp made the decisive difference through its formation of ‘Collectifs pour le non’, a coalition which facilitated the public expression of an anti-liberal and pro-European position capable of bringing together the Green and Socialist electorates, along with other parts of the left. Using a comprehensive analysis of the multi-organizational field of protest constituted by the mobilization of the left-wing ‘No’ camp, we show first that the mobilization was a ‘European affair’, in the sense that it developed a pro-European position in the context of struggles against liberal forces. Second, we show that the mobilization was also a ‘French’ affair because it relied on the high valuation of the ‘national’ mode of belonging, through the defence of the French state model.

Sustainable Development through the Environment Management Tool Ecological Footprint Analysis – A Study in Kochi City, India

In the past, natural resources were plentiful and people were scarce. But the situation is rapidly reversing. Our challenge is to find a way to balance human consumption and nature’s limited productivity in order to ensure that our communities are sustainable locally, regionally and globally. Kochi, the commercial capital of Kerala, South India and the second most important city next to Mumbai on the Western coast is a land having a wide variety of residential environments. Due to rapid population growth, changing lifestyles, food habits and living standards, institutional weaknesses, improper choice of technology and public apathy, the present pattern of the city can be classified as that of haphazard growth with typical problems characteristics of unplanned urban development. Ecological Footprint Analysis (EFA) is physical accounting method, developed by William Rees and M. Wackernagel, focusing on land appropriation using land as its “currency”. It provides a means for measuring and communicating human induced environmental impacts upon the planet. The aim of applying EFA to Kochi city is to quantify the consumption and waste generation of a population and to compare it with the existing biocapacity. By quantifying the ecological footprint we can formulate strategies to reduce the footprint and there by having a sustainable living. In this paper, an attempt is made to explore the tool Ecological Footprint Analysis and calculate and analyse the ecological footprint of the residential areas of Kochi city. The paper also discusses and analyses the waste footprint of the city. An attempt is also made to suggest strategies to reduce the footprint thereby making the city sustainable

Are multiple-choice tests a suitable method to evaluate students' knowledge? : against the extensive use of multiple-choice evaluation test. '¿Son los test de opción múltiple un método adecuado para evaluar el conocimiento de los estudiantes? : en contra del uso extensivo del test de evaluación de opción múltiple'.

Resumen basado en el de la publicación

Using the environment : Key Stage 2, Primary 4-7.

Proporciona una amplia gama de actividades para alumnos de primaria como parte del currículo de ciencias. Algunas actividades pueden realizarse en el aula, mientras que otras pueden realizarse en un entorno más amplio, como el trabajo de campo al aire libre, de manera que los alumnos puedan hacer sus observaciones y familiarizarse con las plantas, las semillas, su crecimiento y sus adaptaciones al medio ambiente, de acuerdo con el ciclo de vida de las plantas y sus interacciones con los organismos vivos, incluidos los microorganismos. pero se centrarán más sobre los animales y su cuidado. Las plantas se utilizarán como una fácil fuente de gran diversidad y adaptación. Incluye ideas para la estructuración de las investigaciones y la introducción de los niños pequeños en los equipos y métodos científicos alentándolos a hacer sus propias hipótesis e investigar el mundo que les rodea. Cada tema incluye una descripción de la actividad y la información para los profesores. En algunas actividades, hay hojas de trabajo para los alumnos y para ayudar a construir conocimientos particulares. Para el desarrollo de habilidades de lectura y aritmética elemental. También hay enlaces multidisciplinares. Para niños entre cuatroy siete años.

Landscape and the environment.

Muestra las diferentes maneras que tienen los pintores de relacionarse con el paisaje y cómo lo expresan en sus obras a lo largo de distintas épocas y culturas. Ayuda a interpretar los estilos artísticos y entender el momento histórico en que fueron creados.

The living planet : a collection of writing on the environment.

Antología que ofrece una ecléctica mezcla de textos de ficción, ficción gráfica, poesía, artículos y autobiografías que muestran la vida en nuestro planeta desde diferentes perspectivas, que celebran la diversidad de nuestro entorno y reflexionan sobre cómo funciona nuestro planeta, cómo está cambiando y lo que podemos hacer para protegerlo. Los textos se dividen en cuatro secciones temáticas: vida salvaje; los mundos de agua; la energía de la naturaleza, y el planeta futuro y sus autores son, entre otros, David Attenborough, Sujata Bhatt, John Clare, Susan Cooper, Roger Deakin y Michael Morpurgo.

Aviation and the environment

Aviation and the environment: outline - Aircraft noise - Aircraft engine emissions Local air quality Greenhouse gases and climate change - Airline, airport and manufacturer impacts