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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
51

Växthusgaser och regional tillväxt : Ett ohållbart dilemma?

Hassani, Hamed January 2020 (has links)
Both Sweden and the European Union have set numerous goals to reduce the emission of greenhouse gasses. At the same time, regional growth is desired in most, if not all of Sweden’s counties. With economic- and population growth being essential for reaching this desire, there is a potential conflict brewing. Is it feasible to reduce the emission of greenhouse gasses while at the same time actively working on growing the economy and the population?This paper has explored this idea in Sweden largest counties Stockholm, Skåne and Västra Götaland. The development in these counties over the last decade or so show that reduced emissions and regional growth in fact have been compatible. Not only that, the county with the largest population, population growth and largest gross regional product, Stockholm, has also had the largest decrease in greenhouse gas emission over the period. The trend of the emission reductions in these three counties are also compatible with the Swedish and European emission targets. However, the trend does indicate the actual development of greenhouse gas emission over a longer period. The findings indicate that reduced greenhouse gas emission can and have coexisted with regional growth.
52

LONG RUN FOOD SECURITY IN NIGER: AGRICULTURAL PRODUCTIVITY, CLIMATE CHANGE AND POPULATION GROWTH

Kayenat Kabir (7152716) 14 August 2019 (has links)
<div> <p>This dissertation examines long-run food security in Niger in an era of climate change and comprises three interlinked essays. The first essay investigates the socio-economic projections for Niger in the current climate change literature in a growth accounting framework and provides a critical assessment to evaluate global projections in the context of a low-income developing country. The second essay quantifies the combined and individual impacts of income, population growth, agricultural productivity, and climate change on food security outcomes by mid-century in rural and urban Niger. Finally, the third essay assesses three policy scenarios considering accelerated investments in agricultural research and dissemination (R&D), reductions in fertility rates, and regional market integration.</p> </div> <br>
53

LEVANTAMENTO DE IMPACTOS AMBIENTAIS EM ÁREAS DE PRESERVAÇÃO PERMANENTES (APPs) URBANAS EM PORANGATU – GO / Survey of environmental impacts in Urban Preservation Areas (APPs) in Porangatu - GO.

Costa, Márcia Inês Florin 14 March 2017 (has links)
Submitted by admin tede (tede@pucgoias.edu.br) on 2017-05-12T13:17:49Z No. of bitstreams: 1 MÁRCIA INÊS FLORIN COSTA.pdf: 13932107 bytes, checksum: 484dfb3747a43fb2558c8e617b8b4e5f (MD5) / Made available in DSpace on 2017-05-12T13:17:49Z (GMT). No. of bitstreams: 1 MÁRCIA INÊS FLORIN COSTA.pdf: 13932107 bytes, checksum: 484dfb3747a43fb2558c8e617b8b4e5f (MD5) Previous issue date: 2017-03-14 / The research in question aims to promote the survey and to analyze pertinent environmental impacts in PPAs (Permanent Protected Areas) of Porangatu - GO. Based on environmental laws, these areas are protected because they contribute to the climate (local microclimate), gene flow, water resources and the control of vectors that are harmful to human health. Physical, biological and anthropic factors (population growth and political action) are observed through on-site research, based on the matrix of the Master Plan (2007) to identify areas for preservation. Eight environmental areas are investigated: Lagoa Alexandrino Cândido Gomes (Lagoa Grande), Ribeirão Funil, Córrego Barreiro, Córrego Bonguê, Córrego Capoeira, Córrego Chiquinha, Córrego Raizama and Córrego do Óleo. The main methodology focused on quantitative research with mathematical calculations for data collection and measurement, photographic images and mapping based on computational modeling. Variables are stipulated from the decharacterization of the natural landscape and through these, the new urban configuration is visualized with substantial loss of native vegetation fomented by the nonobservance of the environmental laws. Thus, the process of diagnosis of the sites investigated proves negative impacts also driven by the urban expansion with horizontal model used in the last thirty years, presenting as expressive results of population growth, territorial expansion with proportional increase of the impacted area in the stipulated historical-temporal cut. The continuity of the same parameters is estimated for the current decade. The extent of impact on research is intertwined with issues related to population growth and territorial expansion. Territorial expansion occurred through the concession of new lots without study of the actual needs for their implementation, causing considerable loss of native vegetation, as well as annihilation of springs, triggering of erosive processes and silting and discharge of urban solid waste and construction and demolition in these areas. Dumping of domestic, commercial and industrial effluents without treatment in the areas of environmental preservation, dilapidating the biological diversity and generating favorable conditions for the dissemination of vectors of tropical zoonoses. In the environmental context, there is negligence in the contingency of resources and efforts of responsibility of the management and it is verified the nonobservance of the law. With an imminent degradation process, in the survey of the stipulated areas, the severity of the impacts is detected, the need for mitigating, short, medium and longterm mitigating measures involving public and private power and all local society to achieve growth Economic and sustainable development. / A pesquisa em questão visa promover o levantamento e analisar impactos ambientais pertinentes em APPs (Áreas de Proteção Permanentes) de Porangatu – GO. Fundamentada em leis ambientais, estas áreas são protegidas, pois contribuem com o clima (microclima local), com o fluxo gênico, recursos hídricos e no controle de vetores nocivos à saúde humana. Observam-se fatores físicos, biológicos e antrópicos (crescimento populacional e ação política) através de investigação in loco, baseando-se na matriz do Plano Diretor (2007) para identificação das áreas de preservação. Investigam-se oito áreas ambientais: Lagoa Alexandrino Cândido Gomes (Lagoa Grande), Ribeirão Funil, Córrego Barreiro, Córrego Bonguê, Córrego Capoeira, Córrego Chiquinha, Córrego Raizama e Córrego do Óleo. A metodologia principal centrou-se na pesquisa quantitativa com cálculos matemáticos para levantamento e mensuração de dados, imagens fotográficas e confecção de mapas apoiada à modelagem computacional. Estipulam-se variáveis a partir da descaracterização da paisagem natural e através destas, visualiza-se a nova configuração urbana com substancial perda de vegetação nativa fomentada pela inobservância das leis ambientais. Assim, o processo de diagnóstico dos locais investigados comprova impactos negativos impulsionados também pela expansão urbana com modelo horizontal utilizado nos últimos trinta anos, apresentando como resultados expressivos de crescimento populacional, expansão territorial com proporcional aumento da área impactada no recorte histórico-temporal estipulado. Estima-se para década vigente a continuidade dos mesmos parâmetros. A extensão do impacto na investigação realizada interliga-se as questões relacionadas ao crescimento populacional e expansão territorial. A expansão territorial ocorreu pela concessão de novos loteamentos sem estudo das reais necessidades para implantação destes, causando perda considerável de vegetação nativa, além da aniquilação de nascentes, desencadeamento de processos erosivos e assoreamento e descarga de resíduos sólidos urbanos e de construção e demolição nessas áreas. Há despejo de efluentes domésticos, comerciais e industriais sem tratamento nas áreas de preservação ambiental, dilapidando a diversidade biológica e gerando condições propícias à disseminação de vetores de zoonoses tropicais. No contexto ambiental, há negligência no contingenciamento de recursos e esforços de responsabilidade da gestão e constata-se a inobservância da lei. Com processo de degradação eminente, no levantamento das áreas estipuladas, detecta-se a severidade dos impactos, ressaltase a necessidade de medidas mitigadoras, potencializadoras de curto, médio, longo prazo envolvendo poder público, privado e toda sociedade local para alcance de crescimento econômico e desenvolvimento sustentável.
54

Growth strategies, competition and defoliation in five grassland plants /

Glimskär, Anders, January 1900 (has links) (PDF)
Diss. (sammanfattning) Uppsala : Sveriges lantbruksuniv. / Härtill 4 uppsatser.
55

Interaction between greenhouse grown chrysanthemum and Frankliniella occidentalis : a modelling approach /

Nothnagl, Margit, January 2006 (has links) (PDF)
Diss. (sammanfattning) Alnarp : Sveriges lantbruksuniv., 2006. / Härtill 5 uppsatser.
56

Sim-Colmeia: ambiente de simulação da dinâmica de uma colmeia para o ensino de Biologia / Sim-colmeia: environment simulation of the dynamics of a hive for teaching biology

José Eduardo Mendes de Figueiredo 30 August 2012 (has links)
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.
57

Sim-Colmeia: ambiente de simulação da dinâmica de uma colmeia para o ensino de Biologia / Sim-colmeia: environment simulation of the dynamics of a hive for teaching biology

José Eduardo Mendes de Figueiredo 30 August 2012 (has links)
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.
58

The Relationship between Human Capital and Economic Growth in Developing Countries : A Study and Analysis on Developing Countries

Khatri Chhetri, Surya Bahadur January 2017 (has links)
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 &amp; Developing countries, as well as poor &amp; 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 &amp; 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.
59

Reprodukční proces obyvatelstva v EU a jeho ekonomické a sociální dopady / Process of demographic reproduction of population in EU and its economical and social impacts

Chroboček, Jakub January 2012 (has links)
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.
60

Výzvy pre republiku Jemen v 21.storočí / Challenges for the Republic of Yemen in the 21st century.

Sadovenková, Ľubica January 2011 (has links)
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.

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