Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv. / Härtill 4 uppsatser.

Diss. (sammanfattning) Alnarp : Sveriges lantbruksuniv., 2006. / Härtill 5 uppsatser.

As ferramentas computacionais estão apoiando, de maneira crescente, o processo de ensino e aprendizagem em diversas áreas. Elas aumentam as possibilidades do docente para ministrar um conteúdo e interagir com seus alunos. Neste grupo de ferramentas estão as simulações baseadas em sistemas multiagentes. Neste contexto, este trabalho tem como objetivo apresentar um ambiente de simulação do crescimento populacional de uma colmeia para o ensino de Biologia. As variáveis do sistema podem ser alteradas visando analisar os diferentes resultados obtidos. Aspectos como duração e tempo da florada das plantações, conhecidos como campos de flores, podem ser manipulados pelo aluno. A abordagem multiagentes em Inteligência Artificial Distribuída foi a solução escolhida, para que o controle das atividades do aplicativo fosse feito de maneira automatizada. A Realidade Virtual foi utilizada para acrescentar aspectos importantes do processo que não podem ser visualizados pela simulação matemática. Uma síntese da utilização de tecnologias na educação, em especial da Informática, é discutida no trabalho. Aspectos da aplicação no ensino de Biologia são apresentados, assim como resultados iniciais de sua utilização. / Computational tools are increasingly supporting the learning process in several areas. They open new opportunities for teachers to deliver content and interact with their students. This group of tools includes simulations based on multi-agent systems. This work aims to present a simulation environment to study the population growth of a beehive in Biology. System variables can be changed in order to analyze different results. Aspects such as duration and time of flowering can be manipulated by the student. The multi-agent approach in Distributed Artificial Intelligence has been chosen to automatically control the activities of the application. Virtual Reality is used to illustrate the behavior of the bees that in general, are not able to be seen through mathematical simulation. Aspects of the application in the teaching of biology are presented, as well as initial results from its use.

As ferramentas computacionais estão apoiando, de maneira crescente, o processo de ensino e aprendizagem em diversas áreas. Elas aumentam as possibilidades do docente para ministrar um conteúdo e interagir com seus alunos. Neste grupo de ferramentas estão as simulações baseadas em sistemas multiagentes. Neste contexto, este trabalho tem como objetivo apresentar um ambiente de simulação do crescimento populacional de uma colmeia para o ensino de Biologia. As variáveis do sistema podem ser alteradas visando analisar os diferentes resultados obtidos. Aspectos como duração e tempo da florada das plantações, conhecidos como campos de flores, podem ser manipulados pelo aluno. A abordagem multiagentes em Inteligência Artificial Distribuída foi a solução escolhida, para que o controle das atividades do aplicativo fosse feito de maneira automatizada. A Realidade Virtual foi utilizada para acrescentar aspectos importantes do processo que não podem ser visualizados pela simulação matemática. Uma síntese da utilização de tecnologias na educação, em especial da Informática, é discutida no trabalho. Aspectos da aplicação no ensino de Biologia são apresentados, assim como resultados iniciais de sua utilização. / Computational tools are increasingly supporting the learning process in several areas. They open new opportunities for teachers to deliver content and interact with their students. This group of tools includes simulations based on multi-agent systems. This work aims to present a simulation environment to study the population growth of a beehive in Biology. System variables can be changed in order to analyze different results. Aspects such as duration and time of flowering can be manipulated by the student. The multi-agent approach in Distributed Artificial Intelligence has been chosen to automatically control the activities of the application. Virtual Reality is used to illustrate the behavior of the bees that in general, are not able to be seen through mathematical simulation. Aspects of the application in the teaching of biology are presented, as well as initial results from its use.

Abstract The purpose of the thesis has been to investigate the relation between human capital and economic growth in developing countries around the world. The main research question is how the human capital impact on the economic growth in developing countries during the period of 2010 -2015.The world is mainly divided into two major groups, which are Developed & Developing countries, as well as poor & rich countries. In this thesis mainly concern only developing and poor countries and their role of the economic growth. The key factors of economic growth are GDP/capita, per capita income, birth rate, death rate, population growth rate, life expectancy at birth, working age population, education, literacy rate and investment in technology. The world is populated day by day such has never been before. In the past history it look back to 123 years to increased from one billion to two billion from 1804 to 1927.Then, next billion took 33 years. The following two billions took 14 years and 13 years, respectively (Ray, Development Economics).             The data has been taken from the Developing countries around the world which is taken a cross sectional data set and data has been analysed with multiple liner regressions model with ordinary least squares (OLS). For this purpose which applied the difference tools & theory which are human capital and technology development, economic growth, norms, externalities and human social capital.   The previous studies is examined the most important factors of economic development that is economic growth and human capital investment. Similarly, the theoretical discussion is described the Solow model, human capital theory, technological progress, demographic transition and social capital. For examine the data is divided into two groups which are dependent and independent variables. Economic growth GDP/capita, GDP/capita growth rate are dependent variable and Ln. GDP initial, life expectancy at birth, population growth rate, education, working age population and investment in technology are independent variables.   This analysis shows the majority of the variables in the study have positive significant relation to the GDP/capita growth. This result furthermore support the developing countries provides insight on the world economic development status towards the independents variables.

The main purpose of this thesis is to reveal the economic and social impacts of demographic development in European union. In chapter one basic demographic terms and theories which are connected to current and future situation in the area of development of natality, mortality and their result natural growth of population are described. In the second part of this thesis basic demographic data in areas of natality, mortality and growth of population are explored. Last chapter contains the information about projections of economic implication on the fiscal stability of government budget, implications for individuals and also social implications of current and future demographic development.

The thesis aims to take a closer look at fundamental problematic areas of Yemeni society, carries out their deeper analysis and identifies the root causes. It deals specifically with human capital from quantitative(demographic trends) as well as qualitative perspective (level of human development) and analyses current political and security situation. The thesis focuses also on the natural resources -- water and oil, their depletion and estimated available amounts. Yemen will likely become the first country ever to run out of underground water resources. A combination of natural dispositions, economy orientation and technology level could possibly lead to the first humanitarian disaster of its kind. In terms of oil production, Yemen is a small exporter on the global level, however the public finance together with public services provision are on the sector highly depended.

Abstract Climate change causes range expansions, but neither the population parameters nor the ecological mechanisms behind range expansions are well known. I studied population dynamics and demography of the great tit (Parus major) in northern Finland, close to the northern range margin of the species’ distribution. I further examined winter conditions, such as temperature, as limiting factors on winter site fidelity and survival of human-fed great tits. Temporal variation in the population growth rate was large, but indicated an overall increasing population size, which fits the current large scale increase in the north. Importantly, the study population was a sink (or pseudo-sink) in almost all years because of low adult survival and low local recruitment. Immigration formed 39–43% of the annual population growth rate indicating that the population is demographically dependent on immigration. The demography differs most from other great tit populations in terms of adult survival which is lower than estimates from more southern Europe. This difference may reflect the impact of more difficult winters. Results from the wintering population support this line of reasoning. Within-winter movement was lower during mid-winter (January to February) and decreased during cold periods. This pattern is probably linked to energy saving and predator escaping strategies during these demanding periods when energy expenditure is high and birds have limited daylight hours to forage. Site fidelity was lower for juveniles than adults within a winter, but not between winters. In addition, survival showed strong links to winter weather. There was temporal variation within winters, particularly when the winter was colder than usual. Survival of juveniles showed a stronger response to cold temperatures. When mean daily minimum temperatures declined below –15 C° degrees, survival started to decline. Low winter temperatures thus provide one explanation for the lower annual adult survival and the sink nature of the population. The results suggest that great tits suffer from the cold conditions of the north: higher mortality increases turnover allowing for strong immigration. Great tits should benefit from warming winters caused by climate change. / Tiivistelmä Väitöskirjassani tutkin talitiaisen (Parus major) populaatiodynamiikkaa, talviaikaista paikkauskollisuutta ja säilyvyyttä levinneisyysalueen pohjoisreunan läheisessä populaatiossa Oulussa. Aikuissäilyvyys oli vuosittain hieman alhaisempi kuin lajin ydinalueella Länsi-Euroopassa. Tutkimusalueella syntyneistä poikasista vain pieni osa jäi pesimään tutkimusalueelle, mikä heijastaa voimistunutta lähtömuuttoa huonolaatuiselta alueelta. Ajallinen vaihtelu populaation kasvukertoimessa oli suurta, mutta keskiarvo osoittaa nykyisen populaation kasvavan. Havaitsemani populaation kasvu ei selity kasvulla aikuissäilyvyydessä tai paikallisessa rekrytoinnissa. Oletan, että populaatio on ollut tulomuuton ylläpitämä nielu (tai valenielu) lähes kaikkina tutkimusvuosina. Niinpä populaatio on demografisesti ja geneettisesti riippuvainen ydinalueesta, josta tuleva geenivirta aiheuttaa ongelmia paikallisiin olosuhteisiin sopeutumisessa. Tutkin sekä talvensisäistä että talvien välistä paikkauskollisuutta suhteessa ikään, sukupuoleen, vuodenaikaan, lämpötilaan ja päivän pituuteen. Talvensisäinen liikkuvuus oli vähäisintä keskitalvella erityisesti kylmien jaksojen aikana. Tämä ilmiö on luultavasti yhteydessä energiansäästöön ja saalistajien välttelyyn näiden vaativien jaksojen aikana, jolloin energiankulutus on suurta ja valoisa ruokailuaika on lyhyt. Nuorten talvensisäinen paikkauskollisuus oli huonompi kuin aikuisten, mutta sukupuolten välillä tässä ei ollut eroa. Sen sijaan talvien välisessä paikkauskollisuudessa ei ollut ryhmien välisiä eroja, mikä viittaa paikkauskollisuudesta olevan yhtäläiset hyödyt kaikille. Nuoret luultavasti keräävät tietoa resursseista ensimmäisenä talvenaan ja täten hankkivat samat edut kuin aikuiset palatessaan alueelle seuraavana talvena. Tutkin, onko talvella lintujen ruokintapaikkoja hyödyntävien talitiaisten säilyvyydessä ympäristötekijöistä, kuten lämpötilasta, johtuvaa vaihtelua. Talvisäilyvyys vaihteli paljon etenkin tavallista kylmempänä talvena. Nuoret kärsivät eniten kylmistä lämpötiloista. Kun keskilämpötila laski –15 C°:seen tai sen alapuolelle, säilyvyys alkoi heikentyä. Verrattuna kylmään talveen säilyvyys oli 1,5 kertaa todennäköisempää lauhan talven aikana. Talitiaiset näyttävät kärsivän pohjoisen kylmistä olosuhteista: korkea kuolleisuus lisää vaihtuvuutta ja geenivirtaa, kun alueelle kohdistuu voimakasta tulomuuttoa.

This study has aimed to investigate how urban transformation, particularly densification, is received by the inhabitants. For this essay, the district of Ålidhem in the city of Umeå has been investigated. The method has been qualitative in the form of partly a field study of the district to investigate what kind of densification that has been done, partly an interview study with the inhabitants of Ålidhem to investigate their view of the changes. This essay is also based on the comprehensive plan for Umeå municipality, as well as other literature and studies of densification in Umeå municipality, but also nationally. Goals and legislation that concerns Swedish urban construction has been explored to investigate its influence on densification projects in Umeå. The two studies performed in this essay has been compared to the previous studies to make a conclusion. The result shows that there are several examples of densification projects in Sweden that have affected the social sustainability positively in each of the concerned districts. The examples can be compared to the densification in Ålidhem. When it comes to the field study, it shows that the district of Ålidhem has been densified in several ways. The interview study, as well as previous studies, conclude that the densification actions has been successful and something that the inhabitants appreciate.

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