Cyanobacteria belong to the oldest organisms of our planet. They use photosynthesis to produce ATP and gain biomass from carbon dioxide. The cyanobacteria Nostoc punctiforme is a filamentous bacterium that consists of two different types of cells, vegetative cells and heterocysts. The type of cell it differentiates into depends on the media they grow in. In an ammonium-rich medium, the N.punctiforme consists of vegetative cells that differentiate into heterocysts when in the medium is changed to a low-concentration ammonium medium.

The aim with this paper is to investigate how the Social Democratic Party (SAP) deals with the question of economic migrants, or more specifically how the problem is represented by the Social Democratic Party, and how this representation has developed over time. The SAP's theory became recently contested by a competing theory that was caused by the predicted future demographic development in Sweden, combined with the EU's eastern expansion. The first factor contributed to the re-write of the theory, to a theory that saw economic migrants as a solution instead of a problem, in direct contrast to SAP's theory. The second factor was a direct threat to SAP's labour immigration policy. This leads to my second question, how did SAP respond to this pressure?The answers to these questions are achieved by using discourse analysis by applying a problem oriented theory on empirical material, constituting propositions, articles in mass media and parliamentary debates.

Bakgrund: Ett gäng definieras som en grupp människor vilka medverkar i kriminell aktivitet och har minst en gemensam symbol som definierar dem. Syfte: Syftet med denna uppsats var att genom noggranna analyser av tidigare genomförda studier kring ungdomsgäng belysa ungdomsgäng som ett fenomen i dagens samhälle. Metod: Forskningsöversikten baserades på tretton vetenskapliga artiklar. Innehållsanalysen av artiklarna resulterade i fyra teman. Resultat: Huvudfynden i studien är att gängmedlemmarna ofta är marginaliserade ungdomar.

The aim of this literature study was to analyze how milk urea concentration is working as a measure of the nitrogen supply to rumen microbes and indicator of the environmental load. Questions included in this literature study were how to improve the dairy cattle nitrogen efficiency and what correlations there are between milk urea, nitrogen efficiency and crude protein content in the feed. Effects on the reproduction from high ration protein content are also addressed. Dairy cattle are today fed with large proportions of protein which could lead to high expenditure of feed and environmental pollutions. The nitrogen can be lost to the environment by different pathways; leaching, denitrification or by emission to the air.

The aim of this literature study was to analyze how milk urea concentration is working as a measure of the nitrogen supply to rumen microbes and indicator of the environmental load. Questions included in this literature study were how to improve the dairy cattle nitrogen efficiency and what correlations there are between milk urea, nitrogen efficiency and crude protein content in the feed. Effects on the reproduction from high ration protein content are also addressed. Dairy cattle are today fed with large proportions of protein which could lead to high expenditure of feed and environmental pollutions. The nitrogen can be lost to the environment by different pathways; leaching, denitrification or by emission to the air.

ABSTRACT Tobacco Rattle Virus (TRV) is a soilborne plant virus. It is an important pathogen in potatoes where it causes spraing disease. This disease can lead to significant economical loss for the farmer, so it is imperative to get the proper diagnose before planting. TRV is spread naturally by free-living nematodes (Trichodorus and Paratrichodorus). Transference of TRV to a plant occurs when the virus-carrying nematodes feed on plant roots. The relationship between virus, nematodes and plants is complicated, and has to these days not been fully characterized. The diagnostic methods available today do not work sufficiently.

Gäng är inget nytt fenomen. Faktum är att forskare hävdar att gäng funnits över större delen av världen under mycket lång tid. Ändå är inte kunskapen om gäng så stor som man skulle kunna tro. För att kunna komma fram till effektiva metoder att bekämpa kriminella ungdomsgäng krävs en ökad kunskap om vad dessa är och hur de fungerar. Syftet med denna studie är att beskriva och förklara varför det är viktigt att arbeta med kriminella ungdomsgäng.

Syftet med denna rapport är att söka att förstå varför vissa människor söker sig till kriminella nätverk, vilka arbetsproblem som skapas hos polisen i Kramfors på grund av Fucked for lifes (FFL) etablering i staden och på vilket sätt man ska arbeta för att lösa dem. FFL håller på att etablera sig i Kramfors, det resulterar i att det uppstår resursbrist för polisen då antalet medlemmar som besöker staden kan variera stort och antalet polispatruller i tjänst är för få om en allvarlig situation skulle uppstå. Gällande just FFL finns ett svårhanterligt problem för polisen, det är att det uppkommit en lokal svans av anhängare till FFL. Denna rapport belyser hur FFL är uppbyggd och vilken typ av kriminalitet de sysslar med, vad de har för förhållningssätt till polisen samt hur andra poliser, specialiserade på denna typ av kriminalitet, ser på detta problem. Rapporten bygger på aktuell litteratur samt intervjuer med poliser.

There are several reasons why organic chicken production is scarce in Sweden. Lack of slow growing (SG) strains combined with higher production costs, lower meat-yield and uncertainty of consumers? willingness to pay seems to be the main reasons. EU-legislations imply use of indigenous slow- or medium growing strains in organic production, nevertheless, fast growing (FG) broilers are often used due to their effectiveness. Increased consumption of processed food creates a market for conventionally rearing of very heavy broilers.

The Goal with this Master of Science thesis is to expand the possible turbine efficiencymeasurements on an exhaust turbocharger. It was done as a part of the CICERO competencecentre. To feed the turbine with air a special flow rig has been used. Instead of loading theturbine by just restricting the compressor flow a docking system for an electrical dynamometer isdesigned to use the dynamometer as an additional loading source. By using an electricaldynamometer as loading device for the turbine, measurements are not depending on compressorperformance.A large part of the work consists in designing accessories for the dynamometer.

 To enjoy work, and be satisfied in the work you do, is important to most people. Work scientific research shows that dissatisfaction with physical or the psychosocial work environment often gives negative effects on the performed work. The purpose of our study is to chart the experience in work satisfaction and psychosocial work environment amongst nurses within psychiatric care. It is an empiric cross section study. The participants in the study contains nurses who are either employed on a conditional tenure or have a temporary post (>3 months) in policlinics and wards in general adult psychiatric care (n=126).

Holy war against the aberration and the newspaper terrorismHeligt krig mot förvillelsen och tidningsterrorismen This paper explores Bernhard von Beskow?s (1796-1868) conservative critique of the, for the early 19th century, new dominating voice in public matters namely the liberal press. There are competing narratives about the emerging liberal press and its critics. On the one hand the conservative critics were seen as hopeless reactionaries which acted against freedom of the press, themselves stripped of positive ideals and/or handled with little interest as footnotes in the great story of the liberal victory over its opponents. On the other hand this story has been questioned and an alternative has been presented of how to understand the conservatives and their critique of the press.

The setting of pupils' final grades in the Swedish upper secondary school system is the responsibility of their teachers and once grades are set, they are not open to appeal. This can be compared with the British system where an external, central examination board sets the final grades based on the result of externally marked examinations (A-levels). These grades are then open to appeal if it is felt that an injustice has been made.This research paper has been an investigation into how pupils in one Swedish upper secondary school attempt to influence their teachers in the grade-setting process and how these teachers are affected by these different methods. Five teachers in total were interviewed in a qualitative case study. The study has also taken up the controversial issue of how grades, which are set individually by thousands of teachers across the country, can be deemed to be fair and equivalent.The study revealed that pupils employ many different methods when trying to influence their teachers in the grade-setting process e.g.

The purpose of this thesis is to evaluate and update load curves for Fortum Distribution AB. Theload curve method is a tool used to forecast the strain of an electric grid. The method is based oncustomer annual energy consumption, outdoors temperature as well as customer category. Theload curve method was established by Svenska Elverksföreningen at the start of the nineties andfocus was put on standardizing annual energyconsumption, in order to make the method usableacross the nation. Present consumption patterns have changed since the original load curves wereproduced, which leads to a need to update the load curves.The work began with an update of present load curves according to recommendation taken fromanother earlier thesis.

Rapid Granulator is one of the world's largest producers of granulators, which is a kind of grinderwho grinds discarded plastics to granules which later can be reused when pressure molding plastics.The company wanted help in developing a new, or alternatively extending their previous,measurement equipment. The old equipment was hard to use, required changes in the code fordifferent measurement scenarios and had a limited array of measuring quantities. Rapid had an ideaof a similar concept only with a greater number of input ports, better range of applicable sensors andan advanced yet easy to use interface. The system is supposed to be placed at Rapid's test departmentwhere it will be used as a tool for finding faults and provide data which can be used for furtherdevelopment of the granulators.The project's members accepted the task and immediately began searching for suitable componentsfor the system. After the search was completed a list of costs, limitations, sensors, I/O's anddevelopment environment was presented to Rapid's staff.