In times of increased flooding, enhanced by climate change, polluted stormwater poses an increased threat to the environment through contaminated water entering waterways. Bioretention utilizes natural processes in soil and vegetation to treat pollutants and combat this threat. Biochar produced through pyrolysis, has a high cation exchange capacity (CEC) and could therefore increase treatment in bioretention systems. This research applies a literature review, interview, and a model to explore the benefits and disadvantages of biochar in order to specify a soil-mix through an understanding of the production process and preferred application rate. High purification through CEC, increased water holding capacity, and carbon sequestration being the benefits discussed.

Title:Cash is King ? or is it?Level:Final assignment for Bachelor Degree in Business AdministrationAuthor:Caroline Eng and Jessica HillbergSupervisor:Jonas KågströmDate:2011- 06Aim:There is a long tradition of trading the currency and the first coins can be traced back to Persia already 500 BC. With the modernization of society and the technological advances we have made in recent years, we are now using electronic payments more and more. We pay by card, Internet banking and mobile phone in addition to cash. The purpose of this paper is to follow Swedbank project "cash smart" and have it as a basis when we examine if we are heading for a cash-free society and what obstacles and opportunities there is for a cash-free society.Method:We have used a qualitative method to conduct interviews with two individuals involved in the project "cash smart" at Swedbank in Gävle.

Title:Cash is King ? or is it?Level:Final assignment for Bachelor Degree in Business AdministrationAuthor:Caroline Eng and Jessica HillbergSupervisor:Jonas KågströmDate:2011- 06Aim:There is a long tradition of trading the currency and the first coins can be traced back to Persia already 500 BC. With the modernization of society and the technological advances we have made in recent years, we are now using electronic payments more and more. We pay by card, Internet banking and mobile phone in addition to cash. The purpose of this paper is to follow Swedbank project "cash smart" and have it as a basis when we examine if we are heading for a cash-free society and what obstacles and opportunities there is for a cash-free society.Method:We have used a qualitative method to conduct interviews with two individuals involved in the project "cash smart" at Swedbank in Gävle.

A common perception is that fungicide treatments increases yield, but that the nitrogen of the particular grain is diluted so that the overall removal of grain nitrogen from the field remains unchanged. The aim of this paper is to demonstrate that a healthy crop reduces the risk of nutrient loss from agricultural land. The results from genotype and plant protection trials often show constant nitrogen content in the grain, although the yield has been increased. Results from such experiments are therefore processed in order to confirm this and show that it is no statistically significant difference between the protein content (and also nitrogen content) in crops which have undergone fungicide treatment compared to crops which remained untreated. The trials processed have been carried out in the southernmost part of Sweden and are distinguished to concern winter wheat production.The explanation to the results is that a healthy crop is able to maintain the biological functions of the plant in a more efficient way than a crop damaged by a fungal infection.

Title:Cash is King ? or is it?Level:Final assignment for Bachelor Degree in Business AdministrationAuthor:Caroline Eng and Jessica HillbergSupervisor:Jonas KågströmDate:2011- 06Aim:There is a long tradition of trading the currency and the first coins can be traced back to Persia already 500 BC. With the modernization of society and the technological advances we have made in recent years, we are now using electronic payments more and more. We pay by card, Internet banking and mobile phone in addition to cash. The purpose of this paper is to follow Swedbank project "cash smart" and have it as a basis when we examine if we are heading for a cash-free society and what obstacles and opportunities there is for a cash-free society.Method:We have used a qualitative method to conduct interviews with two individuals involved in the project "cash smart" at Swedbank in Gävle.

Title:Cash is King ? or is it?Level:Final assignment for Bachelor Degree in Business AdministrationAuthor:Caroline Eng and Jessica HillbergSupervisor:Jonas KågströmDate:2011- 06Aim:There is a long tradition of trading the currency and the first coins can be traced back to Persia already 500 BC. With the modernization of society and the technological advances we have made in recent years, we are now using electronic payments more and more. We pay by card, Internet banking and mobile phone in addition to cash. The purpose of this paper is to follow Swedbank project "cash smart" and have it as a basis when we examine if we are heading for a cash-free society and what obstacles and opportunities there is for a cash-free society.Method:We have used a qualitative method to conduct interviews with two individuals involved in the project "cash smart" at Swedbank in Gävle.

Background: The audit has not always been as it is today. The first law requiring auditing was legislated in the Companies Act 1895. Many events have taken place in the audit history; among them was the Krueger crash, which affected the auditing profession hard in Sweden. This led to new recommendations and laws that would save the profession. Because of the events in the past, there are many who question the audit profession and discussions have been held regarding the auditor's independence and objectivity.

In order to reduce greenhouse gas emissions from human activities fossil fuels will have to be replaced with renewable energy alternatives, such as bioenergy. Sweden has a great potential to produce bioenergy derived from forest products and there is currently a great interest within Sweden in using stumps for bioenergy production. However, the environmental consequences of the method need to be investigated before stump removal can be performed on a large scale. Swedish forest soils contain large carbon pools and a different land use may change conditions so that soils that presently act as sinks of carbon could potentially turn into sources of carbon release instead. This study investigates the initial effects of stump harvesting on the emissions of three greenhouse gases, carbon dioxide, methane and nitrous oxide. The emissions were measured from the soil surface in a Norway spruce forest located in the southern part of Sweden.

Two ecological models of nitrogen processes in treatment wetlands have been evaluated and compared. These models have been implemented, simulated, and visualized in the Modelica language. The differences and similarities between the Modelica modeling environment used in this thesis and other environments or tools for ecological modeling have been evaluated. The modeling tools evaluated are PowerSim, Simile, Stella, the MathModelica Model Editor, and WEST. The evaluation and the analysis have been performed using McCall?s factors for software quality (McCall et al, 1977), a correlation analysis and the Constant Comparative Method (Glaser&Strauss, 1999).

Bakgrund. Vid tumörresektion i de orofaryngeala vävnaderna, utförs mandibulotomi för att skapa åtkomst och möjliggöra kirurgiskt avlägsnande. Allvarliga komplikationer har rapporterats i litteraturen och bidragande orsaker är den kirurgiska tekniken, strålningsterapin samt en inskränkt näringstillförsel till mandibelkroppen. Syfte. Syftet med denna studie var att undersöka om bevarande av periost vid utförande av mandibulotomi, leder till färre patienter med komplikationer relaterade till mandibulotomin.. Metod. Patienter som genomgick mandibulotomi mellan 2003-2012 vid Skånes Universitetssjukhus granskades retrospektivt.

I den ha?r studien implementeras en finita elementmetod fo?r att lo?sa optimala styrpro- blem i programvaran FEniCS. Den finita elementmetod som anva?nds a?r ha?mtad fra?n Karin Krafts doktorsavhandling Adaptive Finite Element Methods for Optimal Control Problems [2].Optimala styrproblem behandlar styrning av dynamiska system. Systemen beskrivs av en tillsta?ndsekvation och ma?let a?r att styra systemet mot ett visst tillsta?nd till en sa? la?g kostnad som mo?jligt.

Approximately 4000-5000 hectares, of SCA´s forest land area in Västerbotten, are in need of pre-commercial thinning (PCT) every year. Within the management district, the areas annually treated with PCT must increase, in order to decrease the area with an urgent need for PCT. This can be done by employing more forest workers or entrepreneurs, by mechanized PCT or by an extended season for PCT. Positive experiences from a private forest owner, who started to carry out PCT when the first snow came and then continued for several months, gave an idea to investigate the possibilities to prolong the season of PCT. The purpose of this experiment was to compare PCT carried out when there was snow on the ground with PCT performed when there was no snow on the ground.

Wastewater contains biodegradable materials, which are often measured as BOD7.Trickling filters are sometimes used as a purification step for BOD-reduction. Atrickling filter is a tower, which is filled with a carrier material. Microorganisms growon the carrier material in the form of a biofilm. This biofilm consists mostly of bacteriathat purify water from BOD.In Älgarås? wastewater treatment plant the water is purified by a trickling filter.However the treatment plant has difficulties reaching the emission requirements forBOD.

The problem with passive farmers has arised as an effect of the European Union´s common agricultural policy (CAP) and the decouplement from production-based payments. Payments to passive farmers contradict the purpose of the single payment scheme and constitute a great cost for the EU. The new contractual period after 2013 has given rise to discussions on the direction of the CAP with a purpose of increasing the efficiency of the single payment scheme, and reducing passive farming. The aim of the study is to increase the knowledge about a few factors? influence on passive farmers? attitudes towards land use and the CAP.

Stormwater is surface runoff water that originates from precipitation or snowmelt and that on hardened surfaces prevents to infiltrate the ground. In city areas stormwater can consists of major amounts pollutants and when reaching a lake or watercourse it can cause damages on vegetation and animals. Therefore it is important to treat polluted stormwater before it reaches the recipient. The municipality of Örebro have since the 90ies an extensive work with treatment of stormwater in sedimentation ponds. A new stormwater treatment project is planned in an industrial estate in Skebäck, Örebro.