Machine vision for the automatic classification of images acquired from Non-destructive tests

This project is based on Artificial Intelligence (A.I) and Digital Image processing (I.P) for automatic condition monitoring of sleepers in the railway track. Rail inspection is a very important task in railway maintenance for traffic safety issues and in preventing dangerous situations. Monitoring railway track infrastructure is an important aspect in which the periodical inspection of rail rolling plane is required.Up to the present days the inspection of the railroad is operated manually by trained personnel. A human operator walks along the railway track searching for sleeper anomalies. This monitoring way is not more acceptable for its slowness and subjectivity. Hence, it is desired to automate such intuitive human skills for the development of more robust and reliable testing methods. Images of wooden sleepers have been used as data for my project. The aim of this project is to present a vision based technique for inspecting railway sleepers (wooden planks under the railway track) by automatic interpretation of Non Destructive Test (NDT) data using A.I. techniques in determining the results of inspection.

Vad kommunikation vill säga : En iscensättande studie om specialpedagogers yrkesroll och kunskapande samtal

This thesis is about the role of special educators in (pre)school and about developing democratic communication. It is based on the theory of argumentation developed by Jürgen Habermas. The aim of the study was to describe the conditions that create possibilities for deliberative communication between special educators, parents, students and colleagues in (pre)school. My overarching aim was to contribute to a more distinct description of special educators´ field of knowledge. I have used a social constructionist approach. The project has been based in the field of action research. A precondition for deliberative dialogues in (pre)schools is to start out from a communicative perspective. That means that (1) some theoretical conditions have been made apparent, (2) knowledge about these conditions have been shown to be crucial for using an aware communicative perspective in a speech act, (3) an aware communicative perspective is revealed through procedures of knowledge. These procedures were understood by and made evident to me as a result of network meeting discussions. A communicative perspective, a special educator as facilitator and procedures of knowledge are found to be crucial for collaboration using a deliberative attitude in (pre)schools. Today there is often a lack of pedagogical professionals in (pre)schools who can act as a link between authorities, organisations, professionals and parents, and who have the authority to pose challenging pedagogical questions. This can be changed if the role of special educators is, instead of teacher, defined as communicative special educators working with dialogues on different levels.

”Jag tror på något” : Konstruktioner av tro och tilltro

”I believe in something”: Constructions of Beliefs in Sweden Research results are dependent on how social phenomena are conceptualized. In the present article, consequences are discussed of the standardized conceptualization of religiosity as ”church-oriented”. In its place, a multifaceted approach to the phenomenon of religious belief is suggested. This approach was used for an analysis on how eleven Swedish women and men with different religious and spiritual as well as non-religious and atheist affiliation talk about beliefs. The results suggest that beliefs were meaningful because they related to specific perceptions of a Zeitgeist. It was hereafter underlined that belief in ”something” or other brief descriptions of the sacred placed the sacred outside of the individual. Finally, while subjective authority is valued for choosing to believe, this subjectivity seems in part to be dependent on collective dimensions of recognition. The value of choosing beliefs can be conceptualized as a meaningful yet analytically distinct aspect of belief co-existing with descriptions of the sacred. Thus, it is concluded that a multifaceted approach to religious belief may develop our understanding of religion and religiosity in contemporary society

Konsekvenser av rollövertagandet : ”I”, ”me” och individualiteten

Consequences of role taking: the ”I”, the ”me” and individuality This paper analyzes the tendency of taking the ”I” and the ”me” in G. H. Meads theory of role taking as two separate, qualitatively different parts of human personality, the ”I” being of individual origin, the ”me” of social. In the original Meadian sense role taking gives rise to both the ”I” and the ”me”. They are dialectically united rather than dualistically separated aspects. They refer to the joint functional power of the subject, finding itself as an object, mediated by the Other. As a consequence, the link between body and the social world becomes theoretically more stringent, as the body is given its place as a cognitive social object among others, this by contrast to interpretations where the body is left as an object mainly outside the human social experience and as a source of agency sui generis, a conception which is in opposition to Meads. The stress on the ”I”-phase, as related to body and concrete action in combination with its direct relation to the ”me”-phase, actualizes Mead as a forerunner in modern biologic/neurologic research on human perceptual, motivational and intentional capacity.Swedish Mead interpreters are critically analyzed. Interpretations of Charon, Giddens, Joas and Habermas are partly scrutinized. The author defines the conceptual pair in terms of activity, subjectivity, temporal relativity and distance.

Specialpedagogers och speciallärares olika roller och uppdrag : skilda föreställningar möts och möter en pedagogisk praktik

Syftet med artikeln är att belysa olika föreställningar kring specialpedagogers och speciallärares roller och uppdrag samt att förstå varför denna olikhet finns. Syftet är också att problematisera  dessa föreställningar  och synliggöra dilemman som kommer till uttryck i talet om de båda yrkesgruppernas roller och uppdrag.  Bakgrunden till studien är de skilda och ofta disparata uppfattningar som råder om vad yrkesgrupperna ska arbeta med, hur de ska genomföra sina uppdrag och varför. Konsekvenserna av detta kan leda till att uppdrag genomförs på ett sätt som inte står i överensstämmelse med styrdokumentens föreskrivna demokrati-, samhälls- och kunskapsuppdrag. Samtal har genomförts med specialpedagoger, speciallärare utbildade efter 2008 och rektorer. Den metodologiska ansatsen har varit kunskapande samtal. Kunskapande samtal utgår från ett kommunikationsteoretiskt perspektiv och bygger på Jürgen Habermas teori om det kommunikativa handlandet. Karen Barads teori om agentisk realism har använts för att förstå hur olika föreställningar kring roller och uppdrag uppstår, skapas och förändras i samspel med andras uppfattningar men även i samspel med exempelvis rum, texter och metoder. Olika föreställningar om roller och uppdrag belyses liksom dilemman som dessa föreställningar kan ge upphov till då yrkesrollerna möts i, och möter, en pedagogisk praktik. Resultatet visar att specialpedagoger och speciallärare behöver finnas med i det kontinuerliga arbetet ute på skolor och förskolor men att det kan betyda olika slags organisatoriska lösningar för yrkesgrupperna. En fråga som uppstår är om de specialpedagogiska yrkesgrupperna alltid och i alla sammanhang bör finns så nära barnen/eleverna som möjligt eller om det finns grund för ett mer distanserat sätt att arbeta? Författaren föreslår att svensk förskola och skola bör utnyttja det faktum att det finns två olika specialpedagogiska yrkesgrupper och särskilja deras roller och uppdrag på ett tydligt sätt. Om specialpedagogik dessutom tar avstamp i ett kommunikationsteoretiskt perspektiv skapas förutsättningar och möjligheter för barns/elevers lärande utifrån ett inkluderande synsätt.