The aim of the study was to examine if the benthos in a restored portion of a small lowland stream south of Linkoping differed from two non restored reference areas two years after restoration. The reference areas were one stretch downstream and one upstream stretches of the restored stream. The benthic invertebrates were collected using standardized kick sampling. In order to classify the communities and estimate any differences, three different indices were exercised. In addition rank-abundance curves and checklists were used to get a picture of species composition.

In many regulated rivers, authorities have stocked hatchery salmon to compensate for loss of wild populations. However, hatchery fish have not always behaved as wild fish do, and stocking them has not always fully compensated for the loss of wild fish. The purpose of this study was to compare swimming behaviour in the river before spawning, the choice of spawning areas and body size between wild and hatchery-reared salmon in the river Klarälven. Salmon behaviour in the river before spawning was analyzed using radio telemetry. The salmon were caught at Forshaga power plant, radio-tagged and returned to Klarälven at Ekshärad, 107 km from the river?s mouth.

During the twentieth century, mergers&aquisitions have occured in waves where times of low activityfrequently has turned into periods of high activity. M&A:s have been of increasing numbers and growing size, which was extra evident during the last wave during the 1990:s. What are the motives that has made M&A such a widely used strategy? Are there similarities within and across industries regarding merger motives? The empirical material consists of primary and secundary data collected from two mergers in three industries respectively; manufacturing, banking and IT. The analysis make use of three different perspectives, the reason for this being to create understanding and furthermore illuminate the complexity of the problem.

The life cycle of the anadromous Atlantic salmon (Salmo salar) can span large geographic, political, and socio-economic boundaries. Management strategies and regulations that only concentrate on small spatial scales often overlook larger basin-wide problems, especially relating to post-spawn seaward migration. In this master thesis one entire migration cycle of wild adult Atlantic salmon in the unregulated northern Swedish river Vindelälven was monitored by radio-telemetry tracking during upstream spawning migration and downstream seaward migration back to the Baltic Sea. The effect of ladder passage variables (time to pass, total time in the ladder, passage day over the ladder) at a fish ladder downstream in the river Umeälven, as well as fish size, were evaluated to determine if differences in upstream migration distance in the river Vindelälven could be observed. Ladder passage variables did not affect migration distance, but size exhibited a negative relationship to migration distance.

Both the Commission and the Community Courts have on several occasions stated that a concentration that will cause the creation or strengthening of an oligopoly under certain circumstances might cause what?s referred to as a collective dominant position in the market. The concept of collective dominant position has gained a lot of criticism for being poorly defined and thereby create an uncertainty. The Commissions approach when applying the concept has also gained criticism for its lack of consistency. As a consequence of the Court of First Instances (CFI) decision in the case Airtours v.

Mergers and acquisitions are a phenomenon which can occur for a variety of reasons. It may for example be that the organizations want to gain larger market shares or to complement and learn from each other and thus become more competitive. After the completion of an acquisition or merger, a process is initiated to create an affiliation between the two companies' employees. The purpose of this paper is to examine whether there is something that management can do to make the integration process as efficient as possible. The empirical research in this paper consisted of interviews and surveys with respondents from two accounting firms that recently completed a merger.

During the last 20 years, the Swedish health care system has faced major changes. One of them is the increasing pressure to generate economic profit due to private businesses entering the market. Health care units are forced to make some structural changes in order to become effective and efficient. As a result merger and acquisitions has become a part of the health care sector, and seems to be an increasing phenomenon. Mergers and acquisitions have mainly been studied in the industry.

The purpose of this study was to investigate the occurrence of Verotoxin-encoding bacteriophages in mussels, cultured downstream the sewage treatment plant in Lysekil.Mussels were collected in three growing areas from April 2008 to March 2009. Real-time PCR was performed for detection of vtx1 and vtx2 genes and enrichment of bacteriophages on non Verotoxin-producing Escherichia coli O157: H7 was carried out. All samples in real-time PCR analysis were negative; no presence of Verotoxin-encoding phages was shown. No plaque was formed on blood agar base plates, indicating that no bacteriophages had been taken up by E. coli bacteriaThe levels of Verotoxin-encoding phages and E.coli outside the sewage treatment plant in Lysekil were not high enough to be able to form VTEC in mussels, indicating that the faecal contamination was low.

The upstream spawning migration of Atlantic salmon (Salmo salar) at the confluence area between the power-station outlet and the bypass-channel in river Umeälven (flow 430 m3s-1) was compared in 2004 and 2005, two years with different experimental flow-regimes. In 2004 the water flow in the bypass-channel was altered during the day with increased flows during the nights while the water flow in 2005 mainly was altered between the weekdays and weekends. Salmon showed altered migratory behaviour in this confluence area, assessed with telemetry (n=116) and echo-sounding, with up- or downstream responses depending on flow-changes in both the bypass and the power station outlet. Increased turbine flow through the power-station generally attracted salmon into the tunnel outlet area while increased spill-flows facilitated salmon to enter the bypass. Echo-sounding in the confluence area showed an increased swimming activity up- and downstream due to time in the day and flow-rates through the tunnel outlet. No changes in activity could be detected due to increasing or decreasing flow through the hydro-power facility.

The importance of chemical use is enormous for areas such as agriculture, industry and medicine and hence a prerequisite for our modern society. In order to protect humans and the environment from the negative effects of chemical use, chemical regulations have been used at a relatively early stage in our history. The purpose of REACH, the new chemical regulation of the European Union, is to generate new knowledge of chemicals within the European market and to increase the responsibilities of the enterprises when it comes to risk management. Whether the enterprises will implement the regulations or not will be of vital importance for the realization of the law?s intentions.The purpose of this study was to identify possibilities and problems that can occur when a downstream-user SME is about to implement REACH.

En omvänd fusion definieras som det förfarande då ett moderbolag fusioneras in i sitt dotterbolag. Det eventuella inkråm som finns i moderbolaget tas vid fusionstillfället upp av dotterbolaget, medan de aktier moderbolaget innehar i dotterbolaget ges ut som fusionsvederlag till dess ägare. Per definition skiljer sig inte en omvänd fusion från en fusion där dotterbolaget absorberas in i sitt moderbolag. Dock är vägledning och litteratur kring området knapphändig vilket har lett till en spekulation om den omvända fusionen skall kunna anses strida mot det förvärvslåneförbud samt det förbud om att förvärva egna aktier som ställs upp i ABL. För att utröna de eventuella problem som kan uppstå vid en sådan fusion, krävs således en undersökning kring de skatte-, och redovisningsmässiga områden som berörs.

The importance of chemical use is enormous for areas such as agriculture, industry and medicine and hence a prerequisite for our modern society. In order to protect humans and the environment from the negative effects of chemical use, chemical regulations have been used at a relatively early stage in our history. The purpose of REACH, the new chemical regulation of the European Union, is to generate new knowledge of chemicals within the European market and to increase the responsibilities of the enterprises when it comes to risk management. Whether the enterprises will implement the regulations or not will be of vital importance for the realization of the law?s intentions.The purpose of this study was to identify possibilities and problems that can occur when a downstream-user SME is about to implement REACH.

The purpose of this master?s thesis is to describe and analyse the origin and development of the municipal library of Västervik. There have been four previous libraries and our examination starts in 1859 with the foundation of a parish library. The other forerunners were a working-class movement library and two libraries in the International Orders of Good Templars. Before the merger of the libraries there were discussions in the municipal council, among the working-class movement and in the IOGT.

Active headsets have been on the market for years and now it is time for something else to enter the stage. The technology of active noise reduction can for exmple also be used in ventilation systems for reducing ventilation noise. An active control system principally consists of four important components, namely the downstream error microphone, the upstream detection or reference microphone, the digital signal processor (DSP) and a loudspeaker. The upstream reference microphone listen to the primary ventilation noise and sends it to the DSP which makes a phase shift to the signal and sends it to the loudspeaker. The loudspeaker sends out the opposite waveform of the incoming one and reduce the primary ventilation noise.

Mergers and Acquisitions have become more and more in common knower days among the companies. Factors that might influence could be such as power of competition or it could even be the aim of new strategies of the company. In mergers is it not only the buildings and the physical objects that is put together, also the human beings within the organization are put together. Each person contributes to the culture, which makes the situation more complicated. In making a merger successful, it is important to pay attention to the organizational culture.