Academic literature on the topic 'R-GOOSE'

The purpose of this study is to explore the lived experiences of Korean "goose" adolescents who attempt to adjust themselves to academic and social environments in Canada. In this study, Korean goose adolescents are defined as those who come to English-speaking countries for a few years to seek out better learning opportunities; their fathers usually stay in Korea to earn money and provide economic support for their families, whereas the mothers take their children abroad to study (Choi, 2005b). Using an interpretive phenomenological analysis (IPA), the researcher conducted semi-structured and in-depth interviews with four Korean goose adolescents residing in Toronto. Findings revealed that these goose adolescents underwent significant adjustment difficulties. Despite their success in academic areas, they encountered various problems on a social level, due to both English language and cultural differences. However, they sought to develop adjustment strategies by obtaining practical assistance from co-ethnic groups: Korean churches and family members. They also attempted to change themselves into active, open-minded and independent learners. Although they still faced challenges and lacked sufficient support, they showed overall satisfaction with living and studying in Canada.<br>Le propos de la présente étude est d'explorer l'expérience vécue d'adolescents coréens migrateurs (Korean goose adolescents) qui tentent de s'adapter à des environnements académique et social différents au Canada. Pour les fins de cette étude, les adolescents coréens migrateurs sont définis comme ceux qui effectuent des séjours de quelques années en des pays anglophones afin d'obtenir de meilleures opportunités d'apprentissage; le plus souvent, les pères de ces adolescents demeurent en Corée dans le but de mieux supporter financièrement leur famille, tandis que les mères accompagnent leur enfants à l'étranger (Choi, 2005b). Préconisant une analyse interprétative de type phénoménologique, la chercheuse a mené des entrevues semi-structurées et en profondeur auprès de quatre adolescents coréens migrateurs résidant à Toronto. Les résultats de l'étude montrent que ces adolescents, culturellement mal préparés, ont dû faire face à de multiples difficultés d'acculturation en sol canadien. Malgré leur succès académique, ces étudiants ont été confrontés à une série de problèmes relationnels avec leurs amis étrangers et ce, en raison de différences d'ordre culturel et linguistique (eu égard à l'usage de la langue anglaise). Pour résoudre ces difficultés, ils ont œuvré à développer des stratégies adaptatives en obtenant l'assistance pratique de membres de communautés ethniques davantage apparentées à la leur, d'églises coréennes et de leur famille. Ils ont également tenté de modifier leur propre attitude personnelle – devenant plus actifs, indépendants et ouverts d'esprit – afin de faciliter leur adaptation. Bien qu'étant toujours dans l'obligation de relever d'importants défis et souffrant d'un réel manque de soutien, ces étudiants éprouvent malgré tout, globalement, de la satisfaction à vivre et à étudier au Canada.

Military jet over-flight activities pose a potential threat to staging waterfowl and pilots. The migration period is important for nutrient acquisition and courtship as these waterfowl enter the breeding season. Using a focal animal (continuous) technique for five-minute intervals, diurnal Time/Activity (TA) budgets for Canada Geese (Branta canadensis canadensis) (n=751), American Black Duck (Anas rubripes) (n=474) and Common Goldeneye (Bucephala clangula) (n=1274) were compiled during 216 hours of behavioural observation. The study was conducted from 26 April to 27 May, 2002 at the outlet of Lac Fourmont, Labrador (52° 03' 30"N, 60° 31' 01" W), in an ashkui or area of open water in an otherwise frozen landscape, which is known historically as a place to hunt waterfowl. These staging grounds are within the 130 000 km2 Low-level Training Area (LLTA) of the Quebec-Labrador Peninsula. Generalized Linear Modeling (GLM) of ranked variables was used to analyze behaviour by: observer, sex, pair status, time of day, date, and each weather parameter. Male Common Goldeneye spent more time in courtship behaviours (2.7%) than females (1.1%) and they spent most of the daylight hours feeding (males 53.3% and females 54.5%), with little time resting (4.8% and 5.2%, respectively). In contrast, Black Ducks and Canada Geese spent relatively little time feeding (12.4% and 5% respectively) and most of their time sleeping (35% and 38% respectively) and locomotion (37.8% and 11% respectively). Ashkui are important to Common Goldeneyes for foraging, and to Canada Geese and Black Ducks for resting prior to the breeding season.<br>Ninety-one low-level jet over-flights occurred and sound levels (n=336 h) at the study site were measured. Effects of low-level jet over-flights were analyzed using GLM of ranked variables in order to analyze a number of variables simultaneously. All behavioural observations that occurred in the quarter hour periods up to 165 minutes after an over-flight were analyzed. Alert and courtship behaviours of Canada Geese increased after over-flights. Other behaviours were negatively affected to a lesser degree. Locomotor activities by Black Ducks increased significantly immediately following over-flights with a stronger movement response with increased noise. Increases in agonistic and comfort behaviours of Common Goldeneye were detected following over-flights with few other significant affects on their behaviour.<br>Key words. Anas rubripes, Branta canadensis, Bucephala clangula, disturbance, jet aircraft, Labrador, low-level flying, military activity, noise, spring staging, time-activity budgets, waterfowl

Dissertação de Mestrado em Segurança Informática apresentada à Faculdade de Ciências e Tecnologia<br>A tecnologia 5G irá trazer num futuro próximo várias melhorias para os sistemas de comunicação móvel, nomeadamente em termos de largura de banda, latência e escalabilidade, assim como abrir portas à utilização de novos conceitos e técnicas. Tudo isto faz do 5G um sério candidato a utilizar em novas áreas e contextos onde normalmente comunicações moveis não podem ser utilizadas.Um destes contextos é o dos Sistemas Críticos. Dados os rigorosos requisitos de desempenho (latência muito baixa, elevado número de nós), redes móveis como o 4G/LTE, não eram uma solução válida para estes ambientes, levando à necessidade de criar redes fechadas e dedicadas, o que representa um aumento significativo do custo. Algumas destas áreas são os sistemas de sinalização ferroviária e os sistemas de distribuição de energia elétrica. A mudança destes sistemas para redes 5G, significa que sistemas que por norma utilizam meios de comunicação fechados e dedicados, passem a utilizar meios abertos. Para além disso, vários protocolos utilizados por estes sistemas não foram projetados para meios abertos, pelo que não implementam mecanismos de segurança para prevenir ciber-ataques nestes termos. Com isto em mente, este trabalho pretende investigar as lacunas de segurança que existem em tais protocolos e sistemas criticos, nomeadamente nos sistemas de sinalização ferroviária e sistemas de distribuição elétrica, que a mudança para a tecnologia 5G irá criar. Iremos analisar as diferentes soluções que são utilizadas atualmente, assim como outros trabalhos já desenvolvidos em prol da ciber-segurança nestas áreas. Propomos, desenvolvemos e avaliamos uma solução baseada num \textit{bridging device} e numa biblioteca de segurança expansivel, contendo vários mecanismos de segurança recomendados para Sistemas Críticos, utilizando os Sistemas de Dístribuição de Energia como caso de estudo prático.Esta tese está inserida no projeto Mobilizador 5G, a ser desenvolvido no Centro de Informática e Sistemas da Universidade de Coimbra, cujo objetivo está na investigação, desenvolvimento e validação de um conjunto de produtos que utilizarão redes 5G. O produto deste trabalho de investigação, será integrado no projeto Mobilizador 5G, mais precisamente, no contexto do PPS3 - Produtos e Serviços para comunicações Máquina-Máquina, fornecendo uma biblioteca de segurança, que poderá ser integrada diretamente em IEDs (Intelligent Electronic Devices), e um \textit{bridging device}, sendo que em conjunto atuarão como uma \textit{Security Box} para Sistemas Críticos, em conformidade com os seus rígidos requisitos de performance.<br>The 5G technology will bring in a very close future, several new improvements to mobile communication systems, namely in terms of bandwidth, latency and scalability, as well as opening doors to new concepts and techniques. All of this makes 5G a serious candidate to be used in new areas and contexts where mobile communications are not usually used. One of these contexts is the Critical Systems. Given it's strict performance requirements (very low latency, high number of nodes), mobile communications like 4G/LTE, were not a feasible solution on these environments, leading to the need of deploying dedicated closed networks, what comes with increased cost. Some of these areas are railway signalling and power distributions systems. Shifting such systems to 5G networks means that systems usually using closed and dedicated transmissions systems will be using open ones. Moreover, current protocols used on such areas may not contain security mechanisms to prevent cyber attacks on open systems. With this in mind, this research work addresses the security gap existing on protocols and critical systems, namely on railway signalling and power distribution, that the shift to 5G technology will create. We analyse the design of several solutions already being used, as well as other work already developed on security mechanisms to these systems. We propose, develop and evaluate a solution based on a bridging device and an expandable security library, containing several recommended security mechanisms for Critical Systems using the Power Distribution Systems as practical use-case.This thesis is integrated in the 5G Mobilizer Project developed at the Centre for Informatics and Systems of the University of Coimbra, whose goal is to research, develop and validate a set of products running over 5G networks. The outcome of this work, will be integrated on the 5G Mobilizer project, more precisely on PPS3 - Products and Services for Machine-to-Machine communications, providing a security library and a bridging device implementation, combined to act as a Security Box to Critical Systems compliant with strict performance requirements.