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.

In the pulp industry, digesters are used to disolve lignin in wood chips. The concentration of lignin is measured and is called the Kappa number. In this thesis, the question of whether an online Kappa sensor, taking samples from the mid-phase of the digester, is useful or not is analyzed. For the samples to be useful, there has to be a relationship between the measured Kappa at the mid- phase and the measured Kappa in the blowpipe at the bottom of the digester. An ARX model of the lower part of the digester has been estimated.

Svensk rätt tillämpar ett så kallat principalansvar. Principalansvar innebär ett ansvar för annans culpa och är med andra ord ett arbetsgivaransvar. Arbetsgivaren skall dock endast ersätta skada som arbetstagaren vållar i tjänsten. Gränsdragningen av vad som skall anses vara ?utfört i tjänsten? är dock inte tydlig i alla situationer.

Svensk rätt tillämpar ett så kallat principalansvar. Principalansvar innebär ett ansvar för annans culpa och är med andra ord ett arbetsgivaransvar. Arbetsgivaren skall dock endast ersätta skada som arbetstagaren vållar i tjänsten. Gränsdragningen av vad som skall anses vara ?utfört i tjänsten? är dock inte tydlig i alla situationer.

Denna uppsats unders?ker licentieringsf?rfarandet, som var riksdagens juridiska maktmedel f?r att avs?tta medlemmar i riksr?det under frihetstiden i Sverige, med hj?lp av en principal-agent-analys. Studien bygger p? en analys fr?n tidigare forskning av historiska dokument fr?n perioden och unders?ker hur riksdagen anv?nde sin utn?mnings- och avs?ttningsmakt f?r att styra riksr?dets sammans?ttning och beslut. Genom Linnarssons (1943) avhandling identifierades specifika fall av licentiering, de politiska konflikterna och de juridiska grunder som anv?ndes f?r att r?ttf?rdiga avs?ttningarna och via en analys av dessa genom principal-agent teorin fick vi en mer nyanserad bild av licentieringsf?rfarandet.

Osteological analysis was carried out on skeletons from nine graves from a medieval cemetery in Ny Varberg, Varberg, Halland. The graves originate from a monastery and a church, dating back to the fourteenth and fifteenth century. The main aim with this thesis has been to study health through the presence of pathologies and skeletal changes. Further aim was to compare the results from the present study with theresults from Torsten Sandbergs analysis of the same material from 1964. This comparison later showed coincidence.

Many invasive species propose a big threat against the native fauna in the area that they colonise. Today the raccoon dog (Nyctereutes procyonoides) is speeding from Finland over the border in to northern Sweden. A project to stop the spread and eliminate the individuals that already have established was initiated in the autumn of 2008. To investigate areas that might be interesting for raccoon dogs and to confirm sightings, cameras with auto triggering mechanisms are used. To get the raccoon dog in front of the camera some kind of lure is used. In this study three kinds of different lures was tested against each other?s.

Abstract This is a qualitative study of elderly people's experiences of loneliness and quality of life. Also the relationship between loneliness and quality of life are examined. Previous research has shown that social loneliness is about when the social context are lost while emotional loneliness can occur with the loss of close relationships. Quality of life is about a sense of connection but also the quality of life arises in the difference between the expectation of what one is and what one wishes to have. This study has shown that the interviewees preferences, activities, social networks and low expectations on their life situation makes interviewees perceive themselves to be less lonely and have a good quality of life.

Work environment activities, such as work health promotion, can take place at different levels - though the best result is obtained when all levels can interact. The overall aim with this study was to examine the impact of health promotion on work related well-being and stress in an industrial company. The focus was on employee experience of and participation in company initiated wellness activities. A quantitative cross-sectional study was conducted in which parts of the Copenhagen Psychosocial Questionnaire (COPSOQ II) were used to examine factors in the psychosocial work environment, and well-being was examined with the Satisfaction with Life Scale (SWLS). In all 303 employees (50 %) responded to the survey.

The work related illness has increased and instead of focusing on what?s causing it more and more efforts are put on trying to find the health factors within and outside the work environment. During the past years the term ?long-term health? has arisen; instead of focusing on the number of employees on the sick-list, the focus should be put on the number of employees that has a record of long-term health within an organization, i.e. health-presence.

An often encountered problem when implementing a mass flow regulator in a rolling mill is the one with measurement of speed. The most widely used solution is to fit a pulse counter to a wheel that is in contact with the strip. Common problems with this design are for instance scratch marks on the strip and problems with the flatness measuring system.  One way of circumventing the aforementioned problems would be a non-contact measuring system. The market of today only offers systems based on the Doppler principle.This report evaluates three different systems for non-contact speed measurement. Important areas in the evaluation have been the ability to operate under normal rolling conditions, integration in existing control system and how well the sensor can be fitted to the rolling mill.

An often encountered problem when implementing a mass flow regulator in a rolling mill is the one with measurement of speed. The most widely used solution is to fit a pulse counter to a wheel that is in contact with the strip. Common problems with this design are for instance scratch marks on the strip and problems with the flatness measuring system.  One way of circumventing the aforementioned problems would be a non-contact measuring system. The market of today only offers systems based on the Doppler principle.This report evaluates three different systems for non-contact speed measurement. Important areas in the evaluation have been the ability to operate under normal rolling conditions, integration in existing control system and how well the sensor can be fitted to the rolling mill.

Background: The population of the world is getting older and in the year of 2020, 1.2 billion people will be 60 years or older. A common health complaint affecting the quality of life in elderly persons are sleep difficulties. Physical activity is claimed to improve sleep quality and the maintenance of a normal circadian rhythm. Several studies have shown positive effects of physical activity on sleep quality, still the evidence of physical activity as sleep-promoter is insufficient. Aim: The aim of this study was to investigate associations between physical activities and sleep quality in persons ?60 years of age.

Auditory Neuropathy Spectrum Disorder (ANSD) is a collective term for a specific form of hearing loss within a heterogeneous population of patients with mutual audiological test-profile. Cochlear implantation in children with ANSD has been found to result in good outcomes. Previous research, however, has shown the existence of a subgroup of children with ANSD who do not benefit from cochlear implantation but instead are in need of alternative methods of communication. The aim of this literature review was to examine the possibilities to predict outcomes of cochlear implantation in children with ANSD by pre-, intra- or postoperative examinations/measurements and thereby evaluate in which cases cochlear implantation is an appropriate intervention within this group of patients. The material consisted of 10 scientific papers published between 2007-2014.

Sweden adopted a new anti-discrimination legislation 2009, DiskL, which aim to prevent direct and indirect discrimination in matters of employment and occupation.According to directives and practices from EU, pregnant workers are entitled a special protection from discrimination during employment situations. The purpose of this essay is to study the legal protection for pregnant workers in employment situations and also analyze whether male workers have similar protection when they plan parental leave. Both regulations from the EU-law and the Swedish law are presented and discussed. This because Swedish discrimination legislation is largely influenced by the EU-law.The study confirms that pregnant workers have a strong legal protection against discrimination through directives from the EU and DiskL. Employers must include this protection in employment situations.