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148 Uppsatser om African easterly waves - Sida 2 av 10

Afrikanska Unionen som säkerhetsaktör- en (o)möjlighet? : en undersökning av Afrikanska Unionens strukturella och institutionella förutsättningar för att agera som säkerhetsaktör.

?African Solutions to African Problems? är en av Afrikanska Unionens nya ledord. Denna vilja om att ta mer ansvar för den afrikanska kontinenten och kunna agera som en säkerhetsaktör har resulterat i en ny säkerhetsdoktrin. För att kunna agera som aktör på den internationella arenan krävs att vissa förutsättningar existerar enligt en modell framtagen av Gunnar Sjöstedt. Dessa strukturella och institutionella förutsättningar kommer i denna studie att undersökas för att analysera huruvida AU kan agera som säkerhetsaktör.

Nyfikenhet i relation till konstnärlig process och presentation

The curious nature of humans has been the puzzle of psychologists, philosophers and scientists since the time we began to use those terms. Why are we curious? Why do we behave the way we do and why? The span of views on curiosity covers all. From being viewed as part of our animalistic nature and compared to instincts, to be viewed as a virtue to scientists and the reason behind why we explore space. Behaviorists tried to define it as an innate drive and some say that it has a crucial role in our ability to learn and understand.

Hydroakustisk kommunikation med bandspridningsteknik

This thesis investigates techniques for stealth hydroacoustic communication using spread spectrum. The Swedish naval defense organisations have a vision that all their units should be able to communicate with each other, even between underwater vehicles. But the properties of water makes it a complex channel to use for wireless communications. Radiomagnetic waves have very limited range in water, therefore acoustic waves are used. In this report the basics of wireless communication systems are described including source coding, channel coding, modulation techniques as well as different techniques for spread spectrum.

Empathy, altruism and the African elephant

The quest to determine if non-human animals have emotional lives similar to man goes a long way back and is yet to result in a clear answer. The aim of this particular literature study is to determine whether or not the African elephant may host feelings of empathy and display altruistic behaviour. In search for an answer to this question, scientists have chosen to first evaluate the cognitive abilities of said species. They have done this through the testing of tool use, mirror self-recognition, memory and the ability to coordinate with another when performing a task etc. It is generally thought, that in order for complex emotion to exist within an individual, cognition, as an awareness of the self and others, must first be present.

Socioeconomic impact of infectious animal diseases in smallholder settings in low-income countries : focussing on African swine fever in Uganda

Smallholder farmers in low-income countries face a number of challenges in animal production. Animal husbandry carries great potential in reducing poverty, hunger and gender inequality, but at the same time infectious diseases are prominent threats to farmers? livelihoods and their animals. The objective of this study was to investigate the socioeconomic impact of infectious animal diseases on smallholder farmers in low-income countries, using African swine fever (ASF) in Uganda as an example. The study was conducted in two parts. The first part of the study was questionnaire-based and performed in Gulu district, northern Uganda.

Självskadebeteende i skolvärlden : En kvalitativ studie kring skolkuratorers upplevelser och uppfattningar av självskadebeteende hos högstadieelever.

This study is of a qualitative phenomenological approach. Its background lies in recent reports that show the problem of self-harm increasing among adolescents. The intent of the study was to highlight school counselors? view of self-harm, and their experiences of meeting self-harm through their work. Six school counselors, all employed in secondary school, have participated in semi-structured interviews.

En bro mellan teoretisk och praktisk kunskap : En fenomenografisk studie baserad på lärares uppfattningar kring teoretisk och praktisk kunskap, metod och lärande- miljöer

This thesis is intended to respond to the extent to which South African textbooks on the subject of history is linked to the governmental policy documents and whether they are producing and reproducing national identity. The two textbooks are aimed at students in grade 10. Both books were produced in 2008 but published by different publishers.The essay is based on Norman Faircloughs critical discourse theory which has been supplemented by Michael Billings theory Banal Nationalism, which assumes that it is the national words that remind us daily of our homeland that is producing and reproducing national identity.  The survey shows that both textbooks are closely tied to the government policy document for the teaching of history. The textbooks refer to the policy, both explicitly and implicitly. The two textbooks reproduce a common national identity in South Africa based on the discussions taking place in society.

Att minnas det förflutna : Historieskrivning i strävan efter ett gemensamt Sydafrika

This thesis is intended to respond to the extent to which South African textbooks on the subject of history is linked to the governmental policy documents and whether they are producing and reproducing national identity. The two textbooks are aimed at students in grade 10. Both books were produced in 2008 but published by different publishers.The essay is based on Norman Faircloughs critical discourse theory which has been supplemented by Michael Billings theory Banal Nationalism, which assumes that it is the national words that remind us daily of our homeland that is producing and reproducing national identity.  The survey shows that both textbooks are closely tied to the government policy document for the teaching of history. The textbooks refer to the policy, both explicitly and implicitly. The two textbooks reproduce a common national identity in South Africa based on the discussions taking place in society.

Afrikanska kvinnor i Frankrike : FGM/C, rasism och mänskliga rättigheter

The purpose of this essay is to display the double moral that is prevailing in France concerning human rights. Immigrants and ethnic minorities are suffering from discrimination as well as racism. By looking at legislation in France concerning FGM/C and its difficulties it becomes clear that there is a correlation between the legislation and African women's situation in general. These women are denied their basic rights and are excluded from society. They are rendered invisible and vulnerable.

Civilsamhällets mobilisering i demokratiseringsprocessen -en fallstudie av Sydafrika

This essay captures the process toward a democratic transition in South Africa and tempts on analyzing the efforts made by civil society before the negotiation with the government in the beginning of the 90´s. The method used is a case study.By applying the theory of Elisabeth Jean Wood about the importance of continued mobilization, I try to answer the question: to what extend did civil society influence the democratization process. The focus of the study lies on the years of intensified popular mobilization, from the start of the 80´s until the beginning of the 90´s.The results following this study shows that COSATU, Congress of South African Trade Unions) and ANC(African National Congress) played both a crucial role for the democratization process in South Africa. UDF, however played a role in the process, but not in the same significant way that COSATU and ANC..

African swine fever in Uganda : description of a recent outbreak and possible differential diagnoses

This study had two different aims. The main aim was to investigate the dynamics and impact of African swine fever (ASF) on a farm in Uganda during a recent outbreak through a case study. The second aim was to estimate the presence of two important differential diagnoses of ASF: Classical swine fever (CSF) and Porcine Reproduction and Respiratory syndrome (PRRS).The field and laboratory based case study of the farm level dynamics of ASF virus during a recent outbreak (October-December 2010) on a farm in the district of Mityana, Uganda, was conducted, using interviews, ELISA and RT-PCR. The financial impact on the farm was also estimated. The impact of the outbreak was profound.

Patho-anatomical studies on african swine fever in Uganda

African Swine Fever (ASF) is one of the most serious transboundary swine diseases because of its high lethality for pigs, socioeconomic consequences, rapid and international spread and the absence of either treatment or vaccine. This Sida Minor Field Study (MFS) was carried out during fall 2010, as part of a larger collaborative research project called ASFUganda, focusing on the epidemiology of the disease in Uganda. The aim with this study was to get more knowledge about the pathology in cases of ASF in Uganda, by studying macroscopic and microscopic lesions in pigs with acute and chronic ASF and to detect the ASF virus (ASFV) in tissues by immunohistochemistry. The pigs were selected from the two different geographical locations in Uganda, Mityana and Gulu district, both with on going confirmed outbreaks of ASF. Necropsies were performed in the field, and the laboratory procedures at the JICA (Japan International Cooperation Agency) Veterinary Pathology Laboratory, Entebbe, Uganda, and at the Department of BVF, SLU, Uppsala, Sweden. Three pigs from an outbreak of ASF in Mityana district showed both the history and the clinical symptoms typical for ASF.

African swine fever in Uganda : attitudes and possible interventions to limit the spread of the disease

The objective of this study was to investigate the attitude towards African swine fever (ASF) primarily among smallholder pig farmers but also among other actors along the pork value chain in Gulu district, Uganda. More specifically, the study aimed to investigate the specific challenges facing both farmers and other members of the pork value chain using participatory epidemiology (PE). ASF is a feared viral disease of pigs associated with high mortality, which is endemic in many parts of Africa. The recent history of Gulu district in Northern Uganda can be described as turbulent and the human population has suffered during decades of war and civil unrest. Pig keeping is considered a potential opportunity for business as well as a way of providing more animal protein in the diet. However, this is threatened by ASF as farmers can lose entire herds due to the disease. This study can confirm some previously known factors and risk activities such as the free range system of pigs and movement of pigs and pork during ongoing outbreaks, which make disease control difficult.

Undervisning om miljöproblem i Cradock - Sydafrika

The purpose of this paper is to investigate some aspects of teaching environmental issues, as they are manifested in another culture. In this paper, I will discuss how you teach environmental issues, how the teaching environment is formed, and what an environmental issue means to a South African teacher, as well as, if there are any cultural aspects to what an environmental issue is. Seven observations were made and qualitative interviews with four teachers teaching Life Science in Cradock, South Africa - The results showed that these South African teachers, independent from each other, followed a similar pattern in their teachings. These patterns contain gathering information concerning environmental issues in the immediate surroundings, as well as using the text book and teaching environmental issues through lectures. It was not possible to draw a conclusion about the cultural aspects in association to environmental issues.

Evaluation of the retinal ON- and OFF-responses in the dog ERG

The aim of the study was to examine the retinal ON- and OFF-pathways of the canine electroretinogram (ERG). The ON- and OFF-pathways are used to distinguish objects from their backgrounds. A dark object is discernible from a lighter background using the OFFpathway and the ON-pathway is used to descry a light object upon a darker background. This study shows that the dog ERG has both ON- and OFF-responses and that these responses can be separated by prolonging the flash duration over 50 ms. The dog OFF-response waveform was more similar to the cat OFF-response than the human OFF-response (Frishman, 2006; Zrenner and Gouras, 1979). In this study six female three-year-old Beagle dogs were included. Both background and flash stimuli were provided by LEDs (light emitting diodes) with a wavelength of 470 nm, a wavelength that is absorbed almost as effectively by the canine M/L-cones as by the S-cones. These stimuli gave ERGs with both ON- and OFF-responses.

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