During sleep the majority of the body?s production of anabolic hormones is produced and sleep is a general anabolic state of being. It has been to our recognition that a powernap is 4-6 times more effective when it comes to sleep intensity than the last 1-2 hours of a traditional eight hour sleep. With this in mind, and that elite athletes worldwide often sleeps in between their training sessions. This study has tried to prove a hypothesis which comes from the assumption that you can recover and perform better during times with intensive periods with better distribution of your sleep.We have in this study let three test subjects take part of a six week long program with two different training periods for legs.

Sleep has a substantial effect on health status where good sleeping habits proves positive on learning. The aim of the present study was to map the views and perceptions of sleep and its effects on health and school performance on 12-year olds. The goal is to visualize these views to give teachers the possibility to better plan the education in concordance with the students? abilities. The study is based on qualitative semi-structured interviews where 12 students aged 12 have partaken.

During the years 1950-75 was the construction of building apartments in high speed. A rapidly growing reconstruction requirement is the consequence of the rapid construction speed in these years. The technical lifetime of the different parts of the buildings is about to end and the needs for reconstruction is huge. One of Sweden's national environmental objectives is to reduce the urge of energy in buildings. This calls for radical measures to implement energy efficiency of existing assistance particularly in the assistance that is now facing reconstruction.

There is strong evidence that cognitive-behavioural therapy for insomnia (CBT-I) is effective. The aim of this study was to compare 7 group-sessions of mindfulness-based cognitive therapy for insomnia (MBCT-I) with 3 group-sessions of CBT-I, on sleep measures and sleep related psychological processes, such as pre-sleep arousal, thought control strategies and mindfulness. Participants (N = 44; age 18-66) with long term insomnia were stratified and randomized into waiting list, MBCT-I and CBT-I. Significant improvements were seen in both groups, compared to waiting list, for instance on insomnia severity, sleep latency and restorative sleep. Small improvements on psychological processes were also found in both groups.

The aim of this study was to investigate the relationship between sleep, photoperiod, milk yield and hormones connected to milk formation. Variations of prolactin (PRL) and Insulin-Like growth factor-1 (IGF-1) in plasma were measured during two different light programs. The light programs consisted of either 24 hours of light (L24:D0) or four hours of light and 20 hours of darkness (L4:D20). Five cows of the Swedish Red breed were used in a cross-over experiment and each light program consisted of five days. Milk yield was measured at every milking and milk samples were analyzed with regard to fat, lactose and protein.

A lot of habitats have declined or disappeared as the old cultural landscape changed to the modern agricultural landscape of today. Places such as power line corridors, racing tracks, gravel pits and military training sites have become refuges for many species associated with the old cultural landscape. These sites have been exposed to ecological disturbances that create the same type of habitats that were found in the old cultural landscape.The military training sites in Sweden has an impressive diversity of species. Disturbances from the military exercises have created habitats that are important for a wide range of species.The purpose of this thesis is to study some of the ecological disturbances occurring in the military training sites of the Swedish Armed Forces and examine how they affect different types of habitats. The thesis explains through litterateur and field studies the reason to the rich biodiversity often found at military training sites.

Vårt syfte med denna studie var att göra en psykometrisk utvärdering av frågeformulären PSAS-C (Pre sleep arousal scale) och APSQ (Anxiety and preoccupation about sleep questionnaire). Teoretiska modeller har kommit fram till att kognitiv uppvarvning och förvrängd subjektiv perception av sömn skapar oro som kan bidra till utveckling av insomni. För att fånga upp oro vid insomni används idag två frågeformulär, PSAS-C och APSQ. Deltagare från en svensk longitudinell studie (n = 2333) ombads att svara på de två formulären. Båda skalorna visade på en god begreppsvaliditet och intern samstämmighet.

The control of indoor temperature must be able to handle large time constants and both measureable disturbances like outdoor temperature, and non-measurable disturbances, like waste heat from appliances. Due to cheaper microcontrollers (small computers with designated tasks) with better performance, more advanced and computation-demanding methods for control can be used.In this thesis, Generalized Predictive Control (GPC) has been implemented and tested on a theoretically derived model of a house. GPC states that a model of the system is estimated in every sample, and the control is carried out simultaneously, based on predictions of the model. Disturbances like solar radiation can be estimated and used in the control as well. The control signals are determined by quadratic programming, which makes it possible to consider conditions, for example limitations on the control signals.GPC requires a number of parameters to be defined, like model order and control signal penalty, but is relatively robust for variations in them.

The aim of this master thesis was to create a dynamic model for the processes in a solid fuel boiler of the moving grate type. Another aim with the model was to keep it as simple as possible but still able to catch the dynamics of the processes in the bedplate of the boiler. The creation of the model had its origin from drying and combustion equations used in earlier modeling work of boilers. The represented model has been used to simulate different kinds of disturbances in a boiler and different ways to control the boiler. These tests show that controlling a number of parameters in the bed of the boiler is an effective way to keep the grate stable during disturbances.

Människors allmänna välbefinnande och livskvalitet påverkas av deras sömn.    Sömnproblemen ökar och resulterar i ökade kostnader för den enskilde, arbetsgivarna och samhället. Syftet med litteraturstudien var att beskriva effekter av sömnhygieniska åtgärder riktade till individer inom hälsovården med primär insomni. Resultatet visade att en kombination av åtgärder utifrån personliga behov gav bäst resultat men också att det rådde begreppsförvirring runt sömnhygieniska åtgärder och deras effektivitet. Fördjupad kunskap behövs vad det gäller de enskilda sömnhygieniska rådens effektivitet.

Studien undersöker hur könsfördelningen ser ut på den samtida konstscenen i Sverige. I vilken utsträckning kön representeras på ett jämställt sätt inom utställningsproduktion antas kopplat till hur de delaktiga i beslutsprocessen förhåller sig till externt jämställdhetsarbete. Tre kategorier av organisationer studeras för att kunna avgöra om det finns skillnader i tillvägagångssätt. Officiella dokument från varje organisation undersöks för att förstå hur de formellt förhåller sig till jämställdhetsarbete. Statistik av den faktiska könsfördelningen för varje organisation tas fram från de två senaste årens utställningsarkiv.

En betydande andel individer med bipolär sjukdom upplever kvarvarande, subkliniska symtom mellan egentliga sjukdomsepisoder. Sådana restsymtom är förenade med sänkt livskvalitet och förhöjd risk för återfall i sjukdomsepisoder. Syftet med föreliggande studie var att undersöka huruvida en kort, internetadministrerad behandling är genomförbar och kan ge en minskning av depressiva restsymtom, genom interventioner riktade mot sömn och emotionsreglering. För detta syfte användes en single-subject design med upprepade mätningar (n=4). Studiens resultat visar att behandlingen är genomförbar och att den, för vissa individer, kan ge en minskning av depressiva restsymtom.

A method for measuring the total impulse from a multi hole diesel injector, introduced inprevious thesis work, ?Development of a method and a device for measuring the momentumrate of fuel sprays?, by Mikael Lindström, has been further developed and tested. The conceptis to simultaneously deflect all sprays from a multi hole diesel injector by using a bell shapeddeflector. The fuel sprays are deflected straight down from their initial umbrella angle, andthe resulting deflection force is measured in a thin strained section of the load cell. The strainis given by three strain gauges, with quarter-bridge circuitry for each gauge.

Aim: The aim of this study was to examine health professionals´ experiences of giving advice regarding sleep to parents of infants and to perform and evaluate an intervention in the form of introducing information about the sleep of infants.Method: The study was designed as an intervention study with a qualitative approach where data was collected from two focus groups in the form of interviews. The intervention consisted of the information material Sugen på sömn. There were five participants whom three of them participated in the second interview. The interviews were processed by content analysis.Results: Health professionals´ experience of giving advice on sleep was summarized in three themes. The experiences of giving advice in interaction with parents, health professional themselves experienced the power to influence the parents with the advice they gave, while the parents' previous experience and knowledge impacted on how the advice came into practice.

Aim: The aim of this study was to examine health professionals´ experiences of giving advice regarding sleep to parents of infants and to perform and evaluate an intervention in the form of introducing information about the sleep of infants.Method: The study was designed as an intervention study with a qualitative approach where data was collected from two focus groups in the form of interviews. The intervention consisted of the information material Sugen på sömn. There were five participants whom three of them participated in the second interview. The interviews were processed by content analysis.Results: Health professionals´ experience of giving advice on sleep was summarized in three themes. The experiences of giving advice in interaction with parents, health professional themselves experienced the power to influence the parents with the advice they gave, while the parents' previous experience and knowledge impacted on how the advice came into practice.