Syftet med den här uppsatsen är att undersöka lärares medvetenhet om den förändrade skollagen vad avser disciplinära och andra åtgärder och i vilken omfattning de upplever att den påverkar skolmiljön. För att kunna uppnå syftet med studien har tre frågor formulerats: för det första i vilken grad är lärare medvetna om vilka åtgärder som enligt lagen finns att tillgå och för det andra, i vilken omfattning tillämpar lärare de befogenheter de fått genom den nya skollagen? Avslutningsvis ställs frågan om lärare upplever att den nya lagen bidragit till några förändringar i deras handlingsutrymme?  Undersökningen som ligger till grund för uppsatsens resultat baserades på enkäter som besvarades av trettiosex lärare vilka undervisar i grundskolans senare år (7-9). Resultatet av undersökningen visar att lärare har begränsade kunskaper om skollagen vad avser lärarens mandat att vidta disciplinära åtgärder mot elever. Det framkommer också att lärare använder sig av disciplinära åtgärder för att stävja störningar i klassrumsmiljön och att en majoritet inte upplever att förändringen av skollagen har ökat lärarnas handlingsutrymme i klassrummet samtidigt som andra lärare anser att studiemiljön påverkats positivt till följd av lagens införande. Avslutningsvis kan det konstateras att studiens resultat kan förklaras med stöd av Michael Lipsky och hans ”gräsrotsteori”, vad avser skillnader mellan skollagens formuleringar och den praktiska tillämpningen i klassrummet. / The aim of this essay is to examine teachers' awareness in the changing school law with regards to disciplinary and other measures and to what extent they feel that this affects the school environment.  In order to achieve this objective, three main questions are posed: Firstly, to what degree are teachers aware of the measures available under the Act? Secondly, to what extent are teachers applying the powers gained through the new Education Act? Finally, do teachers feel the new law has contributed to any changes in their decision making process? The essay's conclusions are based on research resulting from questionnaires answered by thirty-six teachers who teach in compulsory schools higher grades (7-9). The research shows that, firstly, teachers have a limited knowledge of the Education Act regarding a teacher's authority to take disciplinary action against students. Secondly, it appears teachers are using the disciplinary measures to curb disruptions in the classroom.  Finally, a majority do not feel the changes in the Education Act has led to any increase in flexibility within the decision making process in the classroom, whilst others believe the learning environment has been positively affected as a result of the law's introduction. In conclusion the study's results are supported by Michael Lipsky's ”Street-level Bureaucracy," with regards to the differences between the Education Act's wording and practical application in the classroom.

The overall aim of this study is to investigate how social workers who are dealing with financial assistance are experiencing discretion in their daily work. The aim of the study is also to examine how social workers who are dealing with financial assistance relates to the controlling and the supporting functions of their daily work and how this in turn affects the attitude to the client. In order to examine the aim of the study, qualitative method was used. Eight social workers have been interviewed and presented with two fictitious cases that they have been able to discuss. Theories regarding the street-level bureaucrat and its discretion have been used to interpret and understand the collected material. Kerstin Svenssons’ (2001) theory regarding the social worker’s position has also been used to analyse the study’s gathered material. The study shows that social workers consider themselves to have a relatively large discretion in their daily work. However, the majority of the social workers agree that despite the great discretion they can at times feel limited in their work. Findings of the study also show that social workers are either more controlling or more supportive in meeting with the client.

This project is important to the research in both the fields of social movement and of social media and their growing relationship.  This report has analyzed the responses of several key role players in one of the biggest social movements in American history, Occupy Wall Street.  Social media was used as a tool for both communication and information gathering amongst all those who were involved in the movement in a variety of capacities.  The relationship and change that is occurring between traditional media and social media as information sources is also examined.  Through qualitative analysis the importance that the role that social media now commands in our society in the context of social movements specifically became clear.  The results will show the significance of this work and its importance in understanding the role that social media will continue to play in future social movements in the digitized public sphere of the 21st century. / Article manuscript 7,5 hp par of degree:<em> ‘Social media is our media’: two individual activists’ perspectives oftheir relationship with the uses of traditional and social media duringOccupy Wall Street</em>

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There is a large number of children living or spending most of their day on the street. The situation for those children is harsh since they for example do not get their basic needs met. Several organizations’ work includes interventions towards street children in their programmes, but the amount still increases every year. The aim with this study is to examine and explore which challenges the OVC-program face when working with street children, and how these challenges are addressed in their daily work. A qualitative approach was chosen where observations and interviews with personnel were conducted at the OVC- program in Iringa, Tanzania. The result shows that it is hard to know if the program’s goal – to reduce the number of street children in Iringa region – is reached as it is newly implemented. However, the program’s evaluation shows a positive trend. Focus in the work to fulfil the goal is primary the personnel’s attitudes towards the children. The result also shows that an empowerment- based approach is used in the daily work. By combining control and participation the possibility to help the street children to achieve autonomy increases. One challenge in the work is that this control limits the freedom on the street that the children desire. Consequently the relation between control and participation is important to create a successful intervention. / Det finns ett stort antal barn som lever eller spenderar merparten av sin dag på gatan. Situationen för dessa barn är svår, bland annat då deras basala behov inte blir tillgodosedda. Trots att många organisationer arbetar med interventioner riktade mot gatubarn ökar antalet varje år. Syftet med denna studie är att undersöka och utforska vilka utmaningar OVC-programmet möter i arbetet med gatubarn, samt på vilket sätt dessa utmaningar hanteras i den dagliga verksamheten. En kvalitativ ansats har valts för att besvara studiens syfte, där observationer och intervjuer med personal har genomförts på OVC-programmet i Iringa, Tanzania. Resultatet visar att programmets mål, att reducera antalet gatubarn i Iringaregionen, i dagsläget är svårt att uttala sig om då det nyligen är implementerat. Dock visar programmets utvärdering på en positiv utveckling. I arbetet mot att nå målet ligger fokus främst på personalens bemötande gentemot barnen. Resultatet visar även att ett empowermentbaserat arbetssätt tillämpas i den dagliga verksamheten. Genom att kombinera kontroll och medbestämmande skapas möjligheten att hjälpa gatubarnen till ett autonomt liv. En av utmaningarna i arbetet är att denna kontroll begränsar barnens frihet som de upplever och värdesätter på gatan. Därmed är relationen mellan kontroll och medbestämmande viktig för att skapa en lyckad intervention.

The purpose of this study was to understand how social workers experienced working with Addiction Severity Index (ASI) in relation to the goal set by the National Board of Health and Welfare. The method is spread nationwide and therefore it is of great importance to examine how the social workers themselves experience the demands and the resources surrounding ASI. We choose to do a qualitative study interviewing eight social workers at six different occasions. The result was analyzed using Max Weber’s ideal type bureaucracy and Michael Lipsky’s thesis on street-level bureaucrats. We found that the social workers consider the method useful when used from without their own purposes. The standards set by the National Board of Health and Welfare was considered hard to achieve because of the complexity of the method. Among other things the valuation done by both social worker and client was regarded as tough and therefore the results of the interview are at risk of not becoming reliable. We found that the outcome of the interview depends on the performer.

A high efficiency driver is designed for light emitting diode (LED) street lamps in the thesis. The main power conversion circuit employs a phase-controlled rectifier to convert the power from the ac mains of 110/220 V, 60 Hz directly into a dc source, providing the required output current for the street lamps formed by arrayed high brightness white LEDs. The phase-controlled rectifier of the LED driver circuit can be a conventional semi-converter or a rectifier with symmetrical phase control, which makes use of thyristors and power transistors, respectively, to regulate the LED current by means of adjusting the conduction angles in a cycle of the ac line. The phase-controlled rectifiers may exclude the use the bulky electrolyte capacitor with acceptable variation in the chromaticity and the color temperature. Operating at the low frequency, the phase-controlled rectifiers can avoid the problems of electromagnetic interference caused by high-frequency switching and adopt low cost power switches. Furthermore, a relatively high power factor can be achieved when the line source voltage varies within a small allowable range. The research is targeted to a design of a 200 W LED street lamp. To facilitate the changes of the control functions and circuit parameters, the control circuit is realized with a microcontroller. In addition, over-voltage/current protections can be included easily. Experimental results demonstrate that the phase-controlled rectifiers with appropriately designated circuit parameters can approach a power factor of 0.92 and a circuit efficiency of 93% at the rated output.

In this study, Three-dimensional (3D) airflow and dispersion of pollutants were modeled under various excess wall temperature and traffic rate using the RNG k-£` turbulence model and Boussinesq approximation, which was solved numerically using the finite volume method. The street canyon is 60 m long (=L) and 20 m wide (=W). The height of five-story buildings on both sides of the street are about 16 m (=H). Hence, the street canyon has an aspect ratio (AR=H/W) of 0.8 and a length to width ratio of 3 (=L/W). Vehicle emissions were estimated from the measured traffic flow rates and modeled as banded line sources. 3D simulations reveal that the vortex line, joining the centers of cross-sectional vortices of the street canyon, meanders between street buildings. Notably, there is also a horizontal vortex within street canyon. Pollutant concentrations decline as the height increases, and are higher on the leeward side than on the windward side. The ratio of CO pollutants between leeward side and windward side is related to wind velocity. As wind smaller than 0.7 m/sec , the ratio is 1.23¡Fhowever, the ratio is 2.03 with more wind speed above 1.2 m/sec. The CO concentration reveals that the predicted values generally follow the hourly zigzag traffic rate, indicating that CO is closely related to the traffic emissions in a street canyon. The 3D airflow in the street canyon is dominated by both wind fields on buildings top and street exit. The 3D simulations reveal that air flux is 50% higher than 2D. Entrainment of outside air reduces pollutant concentrations, thus reducing concentrations of CO¡BNOx¡Band SO2 by about 51%¡B68% and 70% ,respectively. Thermal boundary layers are very thin. Entrainment of outside air increases and pollutant concentration decreases with increasing heating condition. For T = 5 K, the upward velocity on leeward side increases by about 10%, Also, the downward velocity on windward side decreases by about 28 %. Furthermore, simulation showed that the averaged inflow speed in the lateral direction increases by about 100% as compared with T = 0 K. Hence, the pollutant concentrations with T = 5 K is ony 50% of those without heating. Simulations are followed measurements in street canyon. The averaged simulated concentrations with no heating conditions are about 11~24% and 22~36% lower than measured for CO and NOx , respectively. For heating conditions and without outside traffic source, the averaged simulated concentrations with T = 2 K are 29~36% lower than the measurements. Even at T = 5 K , the concentrations are only about 54% of those without heating, due to the fact that pollutant dilution is enhanced by buoyancy force as to having more outside air entrained into the canyon. However, when traffic emissions outside two ends of canyon were considered, the simulated CO concentrations are 23% and 19% higher than those without outside traffic sources at T = 0 K and T = 2 K, respectively. Traffic-produced turbulence (TPT) enhances the turbulent kinetic energy and the mixing of temperature and admixtures in the canyon. Although the simulated means with the TPT effect are in better agreement with the measured means than those without the TPT effect, the average reduction of CO concentration by the TPT is only about 5% at a given height and heating conditions. Factors affecting the variations between this work and other studies are addressed and explained.

The objective of this study is to investigate and characterize the mechanism of the island wake behind an island called Liu Chiu Yu off the southwestern Taiwan coast based on the in-situ data of Sb-ADCP, CTD and satellite images. The findings suggest that a counter-clockwise eddy and a clockwise eddy both are with 0.01 S vortice appears in the wake of Liu Chiu Yu when the background flows are toward the northwest. The system of two eddies with opposite rotation and a central return flow develops an unsteady eddy shedding. On the other hand, when the background flows are toward the southeast, island wake generated in the lee of Liu Chiu Yu is attached system of two eddies with opposite rotation and a central return flow. The Sb-ADCP data shows that the flow pattern in the northeastern coast of Liu Chiu Yu is mainly semidiurnal. The major axis of the ellipse of the semidiurnal current is parallel to the orientation of the coast line (northeast to southwest) and the shape of the ellipse is quite long and narrow. The amplitude of the semidiurnal current is approximately two times that of the diurnal current. Generally, the currents are stronger and the occurring probability of the island wake is higher during spring tide. The CTD data shows that the eddy center appears to be divergent and upwelling occurs in the areas under the influence of island wakes. The upwelling pumps deep seawater to the surface and results in low temperature, high salinity, high oxygen concentration and low chlorophyll concentration. On the other hand, in the eddy edges, downwelling occur causing high temperature, low salinity, low oxygen concentration and high chlorophyll concentration. Strong shear was formed at the depth of 60m inside the island wake which generates thermocline so that the mixing phenomenon is quite obvious there. Moreover, in the regions without the influence of island wakes, the stratifying effect is clear and the horizontal variation of temperature, salinity and oxygen concentration is small. Therefore, neither upwelling nor downwelling occurs there. Furthermore, along the edge between blocking and free-stream areas, the shear stress increases and the mixing phenomenon arises to a certain degree. The satellite images show that an island wake appears in the southeastern Liu Chiu Yu during spring tide. The island wake develops a phenomenon called von Karman vortex street. At the same time, a counter-clockwise eddy with heavy suspensions appears in the northern Liu Chiu Yu. The radius of the eddy is around 4 Km. The area of the lowest chlorophyll concentration is located at the center of the eddy. By analyzing all these data, it is concluded that the island wake in Liu Chiu Yu usually appears during spring tide.

This study aims to explore the dynamics behind the emergence and expansion of working street children since 1990s in Turkey and Romania, in the context of New Poverty. Poverty is not a new concept, it is a dynamic process, accommodating to new circumstances, its scope shrinking from time to time, but surviving ages. Children, on the other hand, are among the groups that are first and foremost affected from the course of poverty. Nevertheless, working street children is a new notion different from traditional forms of child labour driven with distinct dynamics. In this study, it is claimed that poverty is transformed in the course of globalization process and neo-liberal paradigm. It is also argued that the way children are affected from poverty changed in this process, leading to emergence of working street children. The main discussion of the study is about the connection between working street children and the concept of New Poverty. Turkey and Romania are countries whose political, economic, social and cultural characteristics involve differences at the expense of similarities / however, working street children have been a common problem that both countries have faced at the same period. Employing comparative historical methodology, the main research question is developed as why working street children emerged in similar time periods in Turkey and Romania, which are two quite different countries. After an introductory chapter, Chapter II aims to provide a theoretical framework in which transformation of poverty in general and transformation of child poverty in relation to this process leading to emergence of working street children will be discussed. The third chapter focuses on Turkey and the fourth chapter is on Romania / in both chapters the dynamics leading to emergence of working street children, the scope and dimension of the issue is explored. The fifth chapter is devoted to the comparison of Turkey and Romania in terms of working street children in the context of New Poverty. The conclusion chapter discusses the findings of the study in both countries and tries to locate them into the theoretical framework.