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Showing 1 to 8 of 8 (0.066 seconds)Spelling suggestions: "subject:"umeå auniversity"" "subject:"umeå 2university""
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Investigating the Effectiveness of Forward-Porting BugsNyquist, Fredrik January 2023 (has links)
This research investigates the effectiveness of the forward-porting approach employed in the Magma framework as a fault injection technique for evaluating fuzzers. The study aims to assess the use of Proof-of-Concepts in reproducing crashes in CVEs and evaluate the feasibility of forward-porting vulnerabilities into later software versions. An experiment was conducted using three selected open-source libraries to explore whether vulnerabilities could be triggered or reached in the latest versions through the forward-porting approach. The findings suggest that the forward-porting approach may not be the most effective method for injecting vulnerabilities into software systems. Out of the 22 chosen CVEs for analysis, only one could be triggered and two could be reached using the forward-porting approach. This indicates that many of the injected vulnerabilities become obsolete or have unsatisfiable trigger conditions in later versions. Additionally, manual verification of these vulnerabilities have been found to be time-consuming and challenging. Further research is necessary to provide a comprehensive evaluation of the effectiveness of the forward-porting approach in vulnerability injection.
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‘Ask, ask, ask!’ : A case study of Umeå University library provision for its international studentsLazarevic, Lidija January 2007 (has links)
<p>The aim of this Master’s thesis is to investigate Umeå University Library’s provision for its visiting international students. Questions addressed include: whether this library considers its international students to have specific needs which are different from those of domestic students; what kind of provision is offered to international students; and whether and what kind of affective barriers international students experience in this academic library.</p><p>For this case study two semi-structured interview questionnaires were designed, one for librarians and the other for international students. Three contact librarians and five international students were interviewed. The students differ as to nationality, gender, and level of education. They are non-native English speakers and have stayed in Sweden longer than six months.</p><p>The theoretical framework for this study is partially based on Budd’s library instruction model and partially on Bostick‘s five dimensions of library anxiety: barriers with staff, affective barriers, comfort with the library, knowledge of the library, and mechanical barriers.</p><p>The empirical findings are that apart from a library introduction and a library tour the library does not provide any special services for international students. The library appears to work on a one-size-fits-all assumption, sprinkled with a feel-free-to-ask-me attitude, rather than offering course-integrated library instruction sessions. At best, international students might get one timely library instruction opportunity. At worst, they use the library only for studying in it rather than for information searching. The study confirms the findings from the literature that the international students experience library anxiety. In order to overcome this anxiety, this thesis proposes that library instruction sessions are introduced into all international programmes and courses; that a liaison librarian should be appointed; and that a library website tailored to the needs of international students should be designed.</p>
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‘Ask, ask, ask!’ : a case study of Umeå University library provision for its international studentsLazarevic, Lidija January 2007 (has links)
The aim of this Master’s thesis is to investigate Umeå University Library’s provision for its visiting international students. Questions addressed include: whether this library considers its international students to have specific needs which are different from those of domestic students; what kind of provision is offered to international students; and whether and what kind of affective barriers international students experience in this academic library. For this case study two semi-structured interview questionnaires were designed, one for librarians and the other for international students. Three contact librarians and five international students were interviewed. The students differ as to nationality, gender, and level of education. They are non-native English speakers and have stayed in Sweden longer than six months. The theoretical framework for this study is partially based on Budd’s library instruction model and partially on Bostick‘s five dimensions of library anxiety: barriers with staff, affective barriers, comfort with the library, knowledge of the library, and mechanical barriers. The empirical findings are that apart from a library introduction and a library tour the library does not provide any special services for international students. The library appears to work on a one-size-fits-all assumption, sprinkled with a feel-free-to-ask-me attitude, rather than offering course-integrated library instruction sessions. At best, international students might get one timely library instruction opportunity. At worst, they use the library only for studying in it rather than for information searching. The study confirms the findings from the literature that the international students experience library anxiety. In order to overcome this anxiety, this thesis proposes that library instruction sessions are introduced into all international programmes and courses; that a liaison librarian should be appointed; and that a library website tailored to the needs of international students should be designed.
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Estimating Carbon Footprint : A quantitative analysis of greenhouse gas emission related to human behavior and diet in Västerbotten.Sköld, Bore January 2015 (has links)
Background and objective: Researchers have been looking for a way to predict future emission rates, and come up with explanations on how to tackle the issue of global warming through changes in individual behavior for decades. The focus of these studies have, on the other hand, focused more on nutritional bases rather than cultural. This study’s objective is to provide a method, as a useful tool in further analysis on GHG-emission based on cultural behavioral factors such as socio-economic status as well as age, sex, etc. with diet as emission prediction factor. This could be a stepping stone toward future research on Co2e related to e.g. physiological factors such as BMI, blood pressure and diseases. Method: With the use of data obtained from the FFQ questionnaire within the VIP-program, combined with estimates of greenhouse gas-emission (Co2e) attributed to specific diets obtained from Röös, estimations of individual Co2e emission-levels were calculated using the software “R”. The dataset contained 159 687 observations and 152 different variables. The data was obtained from the Department of Public Health and Clinical Medicine at Umeå University. Portions sizes were mainly collected from the Swedish Food Composition Database. Box-plots and regression analysis were made to illustrate the main findings. Result: The result was a new dataset that could be applied to any population to estimate Co2e-emission on individual level based on an FFQ, given that the FFQ have the same structure as the one in the VIP. The variables that contributed to the highest amount of Co2e were animal products i.e. butter, milk and meat. Chicken, pork and fish were not nearly as Co2e heavy as the meat products containing beef such as “steak”, “minced meat” and “hamburgers”. The regression analysis showed that higher age had a positive effect on reducing emission, as well as being a woman. Education showed an increase in Co2e for higher education. There were some small differences among municipalities. Marital status gave a slight decrease in the regression, meaning married couples emits more than singles. Exercise showed an increase in Co2e for active individuals in the regression analysis. However, the most noticeable result were sex, yielding a relatively big decrease in Co2e-emission for women compared to men. Conclusion: People at younger ages, within the observed age groups 40-60, seemed to reduce their carbon footprint more in relation to the higher age groups over the last 20 years. Overall, the general diet-based carbon footprint in Västerbotten seems to have increased slightly during the last 17 years. A remarkable dip were noticed in 2003, however this might not have been due to any behavioral changes, since the trend broke in 2006 and instantly receded back to the normal levels. This study confirms the fact that meat and dairy products are responsible for a significant amount of the diet-based emission. This topic needs to be studied more, and with this method of applying GHG-emission measures to individual diet-based data, a gate has been opened for a new field of research.
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Guldgruvan som försvann? : En mediestudie av konflikten kring UmanGenomics och Medicinska biobanken 2001-2006 / The goldmine that disappeared? : A media study of the conflict surrounding UmanGenomics and Medical Biobank, 2001-2006Lindenius, Erik January 2009 (has links)
Between 2002 and 2006, an ongoing conflict surrounding Umeå-based biotech company UmanGenomics and the Medical Biobank at Umeå University played out in the media. The conflict involved researchers, business leaders, politicians, the university board, journalists and the general public. The purpose of this dissertation is to examine the public media-mediated conflict surrounding UmanGenomics and Medical Biobank from a media and communication sciences perspective and thereby contribute to research into Science Journalism and media-mediated science-related conflicts. The questions examined by the study are as follows: how was the conflict portrayed in local and national newspapers, respectively, and how did these portrayals change over time? Were there any similarities, or was there any relationship between the media-mediated conflict and the »internal« debate, which are able to be traced via the events registered in Umeå University’s journal of daily events? Which parties elected to involve themselves in the conflict and did their descriptions of what happened differ? Were there any particular aspects of the conflict that were portrayed by the media as »failures«, and if so, what was it that was considered a failure? In total, 654 texts from the local and national media were analysed, as well as the university’s journal. The study has largely been carried out using quantitative content analysis, supplemented by general argumentation analysis. The study’s theoretical bases are taken from research on the relationship between science and the media, from rhetoric research, but also from Science and Technology Studies (STS) in a broader sense. This dissertation shows that the conflict was reported on differently depending on the newspaper’s proximity to the conflict itself, and on which arena the conflict was played out in. This also demonstrates that the conflict, most especially as played out in local news coverage, can be divided into different phases. While the media reports include many instances of those involved laying blame at each other’s feet, it is the market and the conflict that are considered to have been the primary factors in UmanGenomics’ ultimate demise. This study presents five suggestions as to what lessons can be learnt from this media-mediated conflict. The first is that the conflict provides an example of mutual exploitation: the media exploited the events surrounding the conflict in order to produce newsworthy, sensational and descriptive stories. Whereas within the university, the main figures embroiled in the conflict used the media as a front to either introduce or support their own points of view. The second is that the conflict should have given the »university world« an inducement to discuss media strategies and its transparency policies in greater depth. The third suggestion is that the media’s ability to make citizens’ opinions on science-related questions heard is problematic. Fourthly, many of those involved used the conflict to try to position themselves in relation to a rival counterpart, rather than to try to provide the general public with a clear and accurate picture of the conflict. Finally, it is suggested that the use of the »goldmine« metaphor, used to refer to both UmanGenomics and Medical Biobank, may have played a part in limiting media debate on the issue within the confines of a certain type of rhetoric.
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Historielärares Historia : En undersökning om Umeås Historielärarutbildning / History teachers History : A study about Umeås history teachers’ educationMyrlund Nordell, Moa January 2023 (has links)
The point of this study is to understand how Umeå university’s curriculum for the subject of history evolved in the time period 1970 to 2015. Therefore, this study will analyze Umeå university’s curriculum for the course History AB 1, that is included in the history teacher training education. Furthermore, this study will take this analyzation of the curriculum and compare it to the Swedish high school curriculum. This is to better understand the evolution of the education program for teachers, but also to study the symbiotic relationship between schools and universities. Moreover, this assignment will be using Stina Hallsén’s description of policy analyzes to examine the valuation and norms from Umeå’s curriculum, and then take the analyzation further by comparing it to the Swedish high school curriculum. It will thereafter be analyzed with Gert Biesta’s three concepts, Qualification, Socialization and subjectification. Biesta’s concepts will help to measure how good the education at the teacher education program in Umeå is. The results of the study can shortly be described that there’s a long line of changes happening at the teacher education program at Umeå university and the subject of history in the time period 1970 to 2015. The changes range from small differences like the curriculum changing pace, to big changes like entire course moments getting removed and new ones getting added. In addition, the curriculum from Umeå university gets compared to the Swedish high school curriculum. This comparison alongside the study’s framing of question serves to give better insight into how the teachers education program has changed and evolved during the time period. Lastly the results of this study show that yes, there is a symbiotic relationship between Umeå university’s education for teachers and the Swedish high school curriculum. Furthermore, the students attending the teacher training education are taught that becoming a teacher is a lifelong mission to evolve and understand the changes happening in the schools.
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Undervisning på distans : Hur lärarna på Umeå universitet påverkats av skiftet till onlineundervisning / Distance-based teaching : How the teachers at Umeå University has been affected by the shift to online educationGelfgren, Vilhelm January 2021 (has links)
During the outbreak of the COVID-19 pandemic in March 2020, large parts of Sweden's higher education, together with the rest of the world, needed to drasticallymake a switch to distance learning. This involved the use of new technology and video conferencing tools such as Zoom to reduce the virtual distance and get closer to each other without having to be close physically. Umeå University has also had to undergo this drastic transformation of their activities, with lectures, seminars and examinations which all had to suddenly be kept at a distance to reduce the spread of infection. This study consists of a quantitative survey which just over 600 teachers at Umeå University responded to, where their responses show that overall,they’ve had negative experiences where their workload has increased, job satisfaction has decreased and the interaction between the teachers and theirstudents has suffered. At the same time, they respond very positively about the quality of their digital tools and that they’re easy to use. Judging by the results and the answers of the survey, it can also be seen that even though teachers have been quick to adapt to the new distance-based reality, their way of teaching has notadapted in the same way which prevents full utilization of distance-basedtechnologies. All in all, it can be stated that the majority of those who responded to the survey give a picture that teachers prefer to keep their education in classrooms or lecture halls, to have a better interaction between teachers and students.
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GRAVIDA KVINNORS INTAG AV KOSTTILLSKOTT : En kvantitativ studie med fokus på järn och probiotika / PREGNANT WOMEN´S INTAKE OF DIETARY SUPPLEMENT : A quantitative study focusing on iron and probioticsLange Bålman, Miriam January 2019 (has links)
Sammanfattning Bakgrund Vitamin- och mineralbrister hos gravida kvinnor kan leda till missfall och allvarliga störningar i barnets utveckling. Moderns tarmflora överförs med stor sannolikhet till barnet under förlossningen och kan därför innebära ett viktigt steg i utvecklingen av barnets tarmflora. En tänkbar lösning för att säkra ett adekvat intag kan vara konsumtion av kosttillskott och probiotika. I dagsläget finns osäkra uppgifter om hur många gravida kvinnor som intar tillskott. Syfte Att undersöka hur många gravida kvinnor i Västerbottens län som valde att inta kosttillskott, främst järn och probiotika, samt om det fanns en skillnad mellan olika faktorer och intag. Metod En kvantitativ tvärsnittsstudie där gravida kvinnor (n=1473) från Northpop-studien i Västerbottens län svarade på ett frågeformulär gällande intag av kosttillskott och faktorer som ålder, utbildning, kostregim etc. De statistiska tester som användes var Chi-2-test, oberoende t-test och Mann Whitney U-test. Materialet analyserades i SPSS. Signifikansnivån sattes till p<0,05. Resultat Majoriteten av deltagarna svarade att de intog kosttillskott. Faktorer som ökade intaget av kosttillskott hos gravida kvinnor var högre ålder (p=0,030) jämfört med lägre ålder, högre utbildningsnivå (p=0,006) jämfört med lägre utbildningsnivå och vegetarisk/vegansk kost (p=0,021) jämfört med blandkost. Femtiofem procent uppgav att de intog järntillskott. De faktorer som ökade intaget av järntillskott hos gravida kvinnor var vegetarisk/vegansk kost (p=0,001) jämfört med blandkost. Probiotika intogs av 2 procent. Ett högre intag av probiotika sågs hos personer boende i stadsområde (p=0,024) jämfört med övriga boenderegioner samt de som åt vegetarisk/vegansk kost (p=0,001) jämfört med blandkost. Slutsats Majoriteten av deltagarna intog någon typ av kosttillskott, hälften intog järntillskott och en liten andel intog probiotika. Lågutbildade, yngre, de som äter blandkost och bor utanför stadsområde verkar vara i riskgruppen för att inte inta kosttillskott. / Abstract Background Vitamin and mineral deficiencies in pregnant women can lead to miscarriage and serious disturbances in children’s development. The intestinal flora of the mother is most likely transmitted to the child during childbirth and may lay the foundation for the child's health. One possible solution to ensure an adequate intake may be the consumption of dietary supplements and probiotics. At present, there is insufficient data on supplement consumption among pregnant women. Objective The purpose of the study was to examine how many pregnant women in Västerbotten County chose to consume dietary supplements, mainly iron and probiotics, and whether there was a difference between different factors and intake. Method A quantitative cross-sectional study where pregnant women (n=1473) from the Northpop-study in Västerbotten County responded to a questionnaire regarding consumption of dietary supplements and factors such as age, education, diet etc. The material was analyzed in SPSS with Chi-2-test, independent T-Test and Mann-Whitney U-Test. Using significance level <0.05. Results The majority of participants, 90 percent, responded that they consumed dietary supplements. The factors that increased the intake of dietary supplements in pregnant women were higher age (p=0.030), higher education (p=0.006) and vegetarian/vegan diet (p=0.021). Iron was reported to be consumed by 804 people, 55 percent. The factors that increased the intake of iron supplement in pregnant women were vegetarian/vegan diet (p=0.001). Probiotics were consumed by 25 people, 2 percent. Living in urban areas (p=0.024) and eating vegetarian/vegan diet (p=0.002) increased consumption of probiotics. Conclusion The majority of participants chose to consume some type of dietary supplement, half of the participants consumed iron supplements and a small part consumed probiotics. It appears that pregnant women who are low educated, younger, eating an omnivorous diet and living outside urban areas are in the risk zone for not consuming dietary supplements. / Northpop
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