<p><strong> </strong></p><p><strong>SAMMANFATTNING</strong></p><p><strong>Bakgrund </strong>Forskning inom området mat och hälsa har en lång tradition. Däremot finns lite forskning om den praktiska dagliga verksamheten för dietister. Dietister är nöjda med sitt arbete men det finns ett flertal faktorer som gör dem frustrerade såsom t ex tidsbrist. Dietisters verksamhet bygger på konceptet mat och hälsa. Folkhälsa har diskuterats mycket senaste åren då välfärdsjukdomar är ett växande problem. För att förbättra folkhälsan har <em>Fysisk aktivitet på Recept</em> (FaR®) tagits fram, vilket kan skrivas ut av all legitimerad sjukvårdspersonal, inkluderat dietister. Tidigare studier har undersökt hur implementeringen av FaR® har fungerat. I dessa studier har inga dietister medverkat utan enbart annan vårdpersonal. Resultatet har varit att vårdpersonalen har haft en positiv inställning till FaR® men det prioriteras lågt i ett kort perspektiv pga. tidsbrist och bristande rutiner. Arbetssituationen hos vårdgivare har visat sig vara oacceptabel på många sätt enligt tidigare studier.<strong> Syfte</strong> Att studera dietisters arbetssituation utifrån idén att införa ett nytt arbetsinstrument (FaR®) i den dagliga dietistverksamheten. <strong>Metod</strong><strong> </strong>Individuella kvalitativa intervjuer genomfördes med en frågeguide för att skapa struktur i intervjuerna. Därutöver var intervjun flexibel. Intervjuerna spelades in och transkriberades. Därefter lades de in i en kvalitativ datamatris för vidare analys. <strong>Material</strong><strong> </strong>Fem dietister inom primärvården från Stockholmsområdet intervjuades. De var mellan 30 och 45 år och hade arbetat mellan 3 och 14 år som dietister. <strong>Resultat</strong><strong> </strong>Intressanta teman såsom dietisters åsikter om hälsa, syn på FaR®, deras arbetssituation samt tvetydiga inställning till arbetet resulterade studien i. <strong>Diskussion</strong><strong> </strong>Dietisterna skulle gärna jobba med helhetsaspekten på hälsa där det både finns rum för kost och fysisk aktivitet. I nuläget krävs dock prioriteringar till fördel för kosten, för att leverera en bra kvalitet på patientbehandlingarna. Vilka faktorer som påverkar arbetstillfredsställelse analyserades i en teorimodell. Vissa starka, positiva faktorer kan väga upp andra negativa, missgynnande faktorer så att tillfredsställelsen av arbetssituationen ändå upplevs bra. <strong>Konklusion</strong><strong> </strong>Denna undersökning har fått agera katalysator för att belysa dietisters arbetssituation. Skulle mer tid och resurser läggas på dietister inom sjukvård och hälsovård skulle möjligtvis FaR® användas i större utsträckning.  </p> / <p><strong> </strong></p><p><strong>ABSTRACT</strong></p><p><strong>Background</strong> Research of food and health has been explored for centuries. However little is known about the practical daily work situation among dietitians. Dietitians are mostly satisfied with their work but they also feel frustrated over the fact that they have time limitations. The dietitians work is a mix of food and health. During the last years the public health has been debated because of the rising problems with metabolic diseases. To enhance the public health, a new kind of prescription has been developed, called <em>Physical activity on Prescription</em> (PaP). All authorized medical personnel, including dietitians, have been given the right to prescribe it. The implementation of PaP has previously been studied. No dietitians were represented in these studies but other medical personnel were. They had a positive attitude to PaP but in a short perspective they have given it a low priority because of lack of time and routines. In many ways the work situation among health care providers is unacceptable, according to previous studies. <strong>Objective</strong> To study the work situation among dietitians with PaP as an illustrating factor. <strong>Methods</strong> Individualized qualitative interviews were conducted with the assistance of a question sheet to create a structural interview result. To investigate further, the interview was also flexible. The interview was recorded and then transcribed. The transcribed material was then put into a qualitative data matrix for analysis. <strong>Subjects/Settings</strong> Five dietitians from the primary care in Stockholm were interviewed. They were 30 to 45 years old and have worked as dietitians for 3 to 14 years. <strong>Results</strong> The study has resulted in many interesting themes such as dietitians view on health and on PaP, their work situation and their ambiguous feelings towards their work. <strong>Discussion</strong> The dietitians in this study would like to have more time to work with both nutrition and physical activity but for now they are forced to set their priorities to nutrition to deliver a good quality to their patients. Work satisfaction was analyzed in a theory model to determine which factors were the most important. Strong and positive factors showed to compensate for the more negative and disfavorable factors. The result was that the dietitians felt satisfied with their work situation even though there were some unfavorable factors involved. <strong>Conclusions</strong> This study became a way to discover and highlight the work situation among dietitians. If more time and money would be invested in health care, dietitians would have an opportunity to possibly use PaP in a greater extent.  </p>

SAMMANFATTNING Bakgrund Forskning inom området mat och hälsa har en lång tradition. Däremot finns lite forskning om den praktiska dagliga verksamheten för dietister. Dietister är nöjda med sitt arbete men det finns ett flertal faktorer som gör dem frustrerade såsom t ex tidsbrist. Dietisters verksamhet bygger på konceptet mat och hälsa. Folkhälsa har diskuterats mycket senaste åren då välfärdsjukdomar är ett växande problem. För att förbättra folkhälsan har Fysisk aktivitet på Recept (FaR®) tagits fram, vilket kan skrivas ut av all legitimerad sjukvårdspersonal, inkluderat dietister. Tidigare studier har undersökt hur implementeringen av FaR® har fungerat. I dessa studier har inga dietister medverkat utan enbart annan vårdpersonal. Resultatet har varit att vårdpersonalen har haft en positiv inställning till FaR® men det prioriteras lågt i ett kort perspektiv pga. tidsbrist och bristande rutiner. Arbetssituationen hos vårdgivare har visat sig vara oacceptabel på många sätt enligt tidigare studier. Syfte Att studera dietisters arbetssituation utifrån idén att införa ett nytt arbetsinstrument (FaR®) i den dagliga dietistverksamheten. Metod Individuella kvalitativa intervjuer genomfördes med en frågeguide för att skapa struktur i intervjuerna. Därutöver var intervjun flexibel. Intervjuerna spelades in och transkriberades. Därefter lades de in i en kvalitativ datamatris för vidare analys. Material Fem dietister inom primärvården från Stockholmsområdet intervjuades. De var mellan 30 och 45 år och hade arbetat mellan 3 och 14 år som dietister. Resultat Intressanta teman såsom dietisters åsikter om hälsa, syn på FaR®, deras arbetssituation samt tvetydiga inställning till arbetet resulterade studien i. Diskussion Dietisterna skulle gärna jobba med helhetsaspekten på hälsa där det både finns rum för kost och fysisk aktivitet. I nuläget krävs dock prioriteringar till fördel för kosten, för att leverera en bra kvalitet på patientbehandlingarna. Vilka faktorer som påverkar arbetstillfredsställelse analyserades i en teorimodell. Vissa starka, positiva faktorer kan väga upp andra negativa, missgynnande faktorer så att tillfredsställelsen av arbetssituationen ändå upplevs bra. Konklusion Denna undersökning har fått agera katalysator för att belysa dietisters arbetssituation. Skulle mer tid och resurser läggas på dietister inom sjukvård och hälsovård skulle möjligtvis FaR® användas i större utsträckning. / ABSTRACT Background Research of food and health has been explored for centuries. However little is known about the practical daily work situation among dietitians. Dietitians are mostly satisfied with their work but they also feel frustrated over the fact that they have time limitations. The dietitians work is a mix of food and health. During the last years the public health has been debated because of the rising problems with metabolic diseases. To enhance the public health, a new kind of prescription has been developed, called Physical activity on Prescription (PaP). All authorized medical personnel, including dietitians, have been given the right to prescribe it. The implementation of PaP has previously been studied. No dietitians were represented in these studies but other medical personnel were. They had a positive attitude to PaP but in a short perspective they have given it a low priority because of lack of time and routines. In many ways the work situation among health care providers is unacceptable, according to previous studies. Objective To study the work situation among dietitians with PaP as an illustrating factor. Methods Individualized qualitative interviews were conducted with the assistance of a question sheet to create a structural interview result. To investigate further, the interview was also flexible. The interview was recorded and then transcribed. The transcribed material was then put into a qualitative data matrix for analysis. Subjects/Settings Five dietitians from the primary care in Stockholm were interviewed. They were 30 to 45 years old and have worked as dietitians for 3 to 14 years. Results The study has resulted in many interesting themes such as dietitians view on health and on PaP, their work situation and their ambiguous feelings towards their work. Discussion The dietitians in this study would like to have more time to work with both nutrition and physical activity but for now they are forced to set their priorities to nutrition to deliver a good quality to their patients. Work satisfaction was analyzed in a theory model to determine which factors were the most important. Strong and positive factors showed to compensate for the more negative and disfavorable factors. The result was that the dietitians felt satisfied with their work situation even though there were some unfavorable factors involved. Conclusions This study became a way to discover and highlight the work situation among dietitians. If more time and money would be invested in health care, dietitians would have an opportunity to possibly use PaP in a greater extent.

Edge cloud is a distributed computing architecture that is growing in popularity. It aims to bring the cloud closer to the edge of a network, reducing latency and improving performance through the use of distributed servers (edge nodes) spread out geographically. However, in the case of sudden increases in user requests, a node may run short of resources and need to implement a strategy that allows the node's service to degrade its service quality to a level that requires fewer resources so that the service can still be delivered. One such strategy is brownout, a control theory-based algorithm that dynamically controls the node's service quality in order to meet e.g., a latency goal. This thesis explores the use of brownout, previously used in combination with load balancing in the cloud, in conjunction with load balancing in an edge-cloud environment. In this thesis, four load-balancing strategies are evaluated in a Kubernetes-based edge-cloud environment, along with an application that implements the brownout feature. Two of the strategies are originally designed to be used with brownout but made for the regular cloud, one is a recently introduced strategy that performs well in the edge cloud but is brownout unaware, and the last is a random load balancer used as a baseline (also brownout unaware). The goal of the evaluation is to determine the efficiency of these strategies in different edge-cloud scenarios, with regard to service quality-weighted throughput, average latency, adherence to a set latency goal, and outsourcing (requests load balanced to another edge node). The results show that the first two strategies perform worse than the random load balancer in many regards. Their performance is also less predictable and tends to get worse with increasing network delays. The edge cloud strategy, however, shows an improvement in performance when the brownout is introduced in the majority of the test scenarios.  Furthermore, the thesis introduced three possible modifications to make one of the cloud-based strategies perform better in the edge cloud. These modifications were tested in the same environment as the other load-balancing strategies and compared against each other. The first modification consisted of making the load-balancing logic treat its own node differently from other edge nodes.  The second version was devised to only outsource when a certain resource threshold is exceeded and the last version was designed to prioritize its own node when below a certain resource threshold. The last version improved on the others and performed better than the base version in all measured metrics. Compared to the edge cloud strategy with brownout, it performed better with regard to service quality-weighted throughput but was outperformed in all other metrics.