Total organic carbon (TOC) and chemical oxygen demand (COD) are two methods used for measuring organic pollutants in wastewater. Both methods are widely used but the COD method results in production of hazardous wastes, including mercury.The purpose of this study was to validate the method TOC that will replace COD and find a factor to convert TOC to COD. In this study 26 samples were analyzed from four sewage treatment plant in the municipality of Enköping.The results show that the COD method could be replaced by the TOC method.The factor for COD/TOC was between 3.1 - 3.3. Both methods will be used in parallel until 2013 when it will be forbidden to use the COD analysis..

ABSTRACT Objective: The objective of this review was to describe the effects of low carbohydrate diets in people with diabetes type 2. Methods: Review. An article search was made in the databases PubMed and Medline. The search resulted in 17 studies. After review and analysis of the studies main results five categories were highlighted; bloodsugar levels, HbA1c, weight, lipid levels and antidiabetic medications.

This report is a thesis on requests from Sandvik Mining and Construction (SMC) in autumn of 2012. The goal of this work was to study the feasibility of creating and implementing an Equalized preventive maintenance program in SMC maintenance operations and reduce downtime for preventive maintenance (PM). To investigate whether this was possible, the authors studied the current procedures for the PM. The authors have collected and analyzed all relevant information within the maintenance department reporting system as well as through interviews determined whether it is practical to introduce a Equalized PM programs. The authors had also studied the possibilities to entrust part of the maintenance work to the operators of the machine cells.

Bakgrund: Diabetes mellitus typ 2 fo?rva?ntas o?ka drastiskt de kommande a?ren. Fo?r att uppna? fo?ra?ndring beho?ver personerna fa? insikt och fo?rsta?else fo?r sambandet mellan delar i egenva?rd. Empowerment har visat sig vara av betydelse fo?r att uppna? egenkontroll och sja?lvsta?ndighet i egenva?rd.Syfte: Syftet var att beskriva effekten av empowerment pa? egenva?rd hos personer med diabetes mellitus typ 2.Metod: En litteraturo?versikt har genomfo?rts baserad pa? vetenskapliga artiklar med kvantitativ design och analyserades enligt Fribergs trestegsmodell.Resultat: Resultatet a?r en sammansta?llning av totalt tio artiklar besta?ende av ett sjukdoms- specifikt- eller patientdrivet program inneha?llande empowermentinterventioner.

Life in addiction and what it is like to quitA qualitative study based on men and womens emotional experienses and social relationshipsWomen in addiction are faced by harder social attitudes then men, which could be an explanation to the fact that, in comparison to men, less women are seen in addiction. That women experience stronger feelings of shame makes them inclined to hide their addiction and this in turn can increase the feeling of shame. The objective of this essay was to, with a starting-point in theory and essential concepts as social relationships and emotions, gain knowledge about emotional experiences and momentous events for men and women during time in addiction and when quitting. More specifically, the aim of the study was to answer the following questions; What is life in addiction and quitting, regarding social relationships and emotional experiences as pride and shame in interaction with people who are important to the individual, like? Do the situations women are in, and the experiences they have, differ from those of men? Do these social relationships and emotional experiences influence the addition and the quitting? In the study six persons have been interviewed, three men and three women who are all quitting, or trying to quit, their drug and/or alcohol addiction.

In many clinical applications, it is desirable to transmit sensor information wireless. In earlier research, investigation transmit ECG signal using Bluetooth, was performed. However, when Bluetooth has some drawbacks it is of interest to investigate alternative methods, one such method is ZigBee. Bluetooth has higher data rate speed (1Mbps) than ZigBee (250kbps). However, Bluetooth consumes more power.

In the informational age of today, continuous learning is of greatest importance. The demand for this seems to be increasing, while at the same time people are under more pressure to carry out more tasks in shorter amounts of time. A way to solve the problem of finding time to learn could be to make use of the possibilities that Internet offers for learning at a distance. The purpose of this thesis is to, from a pedagogical perspective, contribute to the discussion concerning Internet based distance education for a target population consisting of professionals. We have found that some of the courses included in the two certification programs which we have investigated are suitable for Internet based distance education.

The Volvo Trucks plant in Umeå is a highy complex manufacturing facility where the same production line handles a variety of different models. This require flexible and agile processes with high quality standards. This thesis studies the flow of material through a production line and how Volvo can use their existing manufacturing monitoring system to optimize the flow of materials.The goal with the thesis is to identify eventual problems with the flow of materials and to deliver a few proposals on how the production line can improve its productivity. The theory of LEAN, Just-In-Time and Supply Chain Management serves as the scientific reference to this project. By analyzing the flow of material, performing interviews and observing the processes a few problems are identified.

To fence in pastures for sheep today is a major cost, especially because of the time required when using current methods. What takes most time is starting to fence off a new area, but to maintain a fence is also a continuous effort. The main function is to keep the sheep at the field.! !By interviewing and observing sheep farmers on how they work with fence today and what their problems was, I got a better understanding of the problem. Also looking at a number of other things like the context, statistics on sheep farming, laws and competition mapping gave a wider image. But the most important part in my research occurred when I talked to experts about sheep behavior.

Ethanol produced from lignocellulosic biomass has the potential to become a promisingalternative to gasoline. In this work the simultaneous saccharification and fermentation (SSF)technology was applied for ethanol production from hardwood with focus on cell growth,ethanol production and contamination.The SSF was performed at PH 5.5 and 35°C for different suspended solid concentrations(8%, 10% and 12%) of pretreated birch slurry which contained 16 % total suspended solids.Two different hexose fermenting yeast strain (Ethanol Red) and pentose fermenting yeaststrain were used.Quantifying the concentration of chemical components and metabolites in the fermentationmedium demonstrated that glucose and xylose are the major fermentable sugars in the slurry.The higher load of slurry (12%) represents a higher content of carbohydrates and potentiallyhigher end concentration of ethanol. Moreover, more lactic acid is produced with the lowerload of slurry (8 % or 10 %), presumably due to a result of a less inhibitory environment forbacterial growth. In this context, acetic acid sticks out as the most important inhibitor withconcentrations of 15.2 and 12.5 and 9.7 g/l respectively in the 12 %, 10 % and 8 % (ofsuspended solids) trials. Using pentose fermenting yeast may lead to higher ethanolproduction, lower xylose uptake and lower lactic acid formation.

Normally the operational amplifier is used as a component in active filter design. The goal for future components in filter design is large bandwith and the use of low supply voltages. The use of current-mode instead of voltage-mode circuits gets a step closer to the required performance. A component that use current as the signal conveying part is the current conveyor. In this report a comparative study between two current conveyor structures of second generation (CCII) is performed.

The objective of this study was to describe and analyze some of the conflicts in the class room using solution strategies from a human needs perspective. This was done by a qualitative in-vestigation based on the observations of the participants.The query of how every day conflicts arise in the class room and their reasons.The result was analyzed using reference frame in human needs theory. The results showed that there were several reasons for a conflict and its solution. It was also shown that creating a nice atmosphere in the class room was a continuous effort and the strategies of the teachers in a conflict situation were different depending on the situation. Human needs theories assists us to analyze and handle conflicts in the class room..

The purpose of this paper is to examine what problems cabbage growers have with the Swede Midge. The last few years the Swede Midge, Contarinia nasturtii, has become a larger problem for cabbage growers in several countries in Europe as well as in Sweden. In Canada the problems are so severe that the midge is classified as a quarantine pest and therefore certain rules have to be followed. I have collected facts of the biology, host plants and reproduction of the Swede Midge, as well as the growers experiences and the occurrence of the midge in Canada, Europe and Sweden. The Swede Midge is hard to control because of its short life cycle and the larvae are protected between the heartleaves of the plant. When the larva feeds on the growth point the plant becomes distorted, in some cases several heads develop or none at all. When the midge infests spring rape its flower buds become undeveloped and rosette like.

The essay studies Romania and the Roma in the country as a minority from an Europeanization perspective.The aim of the essay is to study EU´s impact on Romania in general through Europeanization and to illustrate this Europeanization by studying the situation of the Roma in particular.The paper focuses on Romania´s Europeanization process and the Roma as a minority. It looks at how these mechanisms have affected Romania´s efforts to prohibit discrimination and to promote Roma´s rights.Heather Grabbes´s Europeanization mechanism; models, money, gate ?keeping, benchmarking and monitoring, advice and twinning is the framework for the essay. Besides this Claudio Radaelli´s definition is used because it is broad enough to cover different areasThe conclusion is that Europeanization has affected Romania in its adaption to EU membership. Romania has been affected by a top-down Europeanization process.Regarding the Roma the conclusion is that the mechanisms have pushed Romania to focus more on the Roma.

A wastewater treatment plant has the task to refine the wastewater from substances that should not be released into the environment. The decomposition process can, in a simple way, be described as follows: micro-organisms breathe oxygen and eat unwanted substances. The environment in which the micro-organism lives is known as sludge and the correct amount of oxygen available in the sludge is important for the decomposition to be effective. The oxygenation of the sludge alone stands for about 30% of the plant?s energy consumption.