Marinarkeologiska föremål är en icke desto mera undersökt underkategori i museisamlingar. De skiljer sig frånandra typer av föremål i samlingar då de genom sin fyndplats är mera krävande. Det är också värt att etableravad föremålet har för värden efter utgrävningen. Som en del av värde och förmedling tas föremålenskonservering och utgrävning också upp.Genom att undersöka bärgade tre kanoner från tre vrak från perioden 1480 till 1580 ef. kr försöker uppsatsenatt belysa den typen av föremål ur flera perspektiv som går att sammanfatta ur bevarande och förmedlande.Kanonerna som undersöks är "Brisundskanonen" på Gotlands museum, en kanon från örlogsfartyget Mars ochlavetter bärgade från Gribshunden på Blekinge museum. Undersökningen är gjord genom platsbesök,intervjuer, och litteraturstudier. Målet med undersökningen är att skapa kunskap om marinarkeologiskaföremål, dess egenskaper, värden och processer. / Marine archaeological objects are an under-researched subcategory in museum collections. They differ fromother types of objects in collections as they are more demanding due to their former location. It is also worthestablishing what the object's value is after excavation. As part of value and mediation, the conservation andexcavation of the objects is also addressed.By examining three guns recovered from three wrecks from the period 1480 to 1580 AD. The essay tries to shedlight on the type of object from several perspectives that can be summarized from preservation and mediation.The cannons being examined are the "Brisund cannon" at Gotland's museum, a cannon from Mars, and lavettessalvaged from Gribshunden at Blekinge museum. The investigation is done through site visits, interviews, andliterature studies. The goal of the survey is to create knowledge of how museums best manage this type ofobject.

This essay tries to deduct whether the pitted ware culture (3200-2300) at Ajvide and Västerbjers had a gender structure based on big game hunting via grave furniture. The grave furniture is selected on the basis of big game affiliation and then subjected to descriptive statistics and correspondence analysis. The results suggest that seal and boar hunting is normative for men but that only seal is normative for women in Ajvide and only boar at Västerbjers. / <p>Denna uppsats tilldelades ett A i betyg.</p>

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This thesis project aims to discuss the conditions and importance of water as a dynamic body in our environment, as water is affecting life on Earth on all levels. By focusing on the Baltic Sea, a sensitive body of water, I am exploring the acoustic characters of the sea dynamics through sound recordings at three bays in the Stockholm Archipelago. How can an acoustic exploration of the Baltic Sea dynamics mediate a sensitive relationship to our marine environments? Sound defines environments and gives indications of their current state. In this project, I intertwine an artistic approach involving our senses with scientific research of measuring to further an understanding of the relationship between humans and nature. The project explores water and sound in two parts, first as a method for listening to the sea, second as a spatial composition created for a sensory experience of the sea’s endless motion. It is my hope that my installation can stir emotions and create an understanding for the environmental challenges facing the Baltic Sea and inspire action towards prosperous natural environments where we live with and not apart from nature.

The climate on earth keeps getting warmer where heat waves, eutrophication, rising sea levels, extreme weather like flooding, droughts and wildfires are an expanding problem. The focus of this bachelor thesis is to determine the potential of mitigating eutrophication and while contributing to blue growth by harvesting and make use of reeds like Phragmites australis and Arundo donax. Reeds have the ability to quickly absorb nutrients from aquatic environments and there are opportunities to use them as a feedstock for producing biochar to be potentially used in areas such as soil improvement, fodder additive and carbon sequestration. Additionally, optimal biochar properties for the observed applications gets analysed. The thesis is based on a systematic literature review and an interview with Niclas Anvret at the non-profit organisation “Race for the Baltic”.  Results show that biochar produced according to parameters such as heating rate, biomass species and especially, different temperatures, results in varied characteristics that change the biochar's adsorption abilities, nutrient retention, alkalinity, stability, surface area and porosity volume. The different applications of biochar are, however, not easily determined. This is because of the fact that certain biochar properties, that are prominent in entirely different pyrolysis conditions, could both be beneficial for the same application. Additionally, the different attributes sometimes influence each other which gives rise to unclear patterns affecting use potential. To overcome these issues, more research is needed to clarify the correlations between attributes of the biochar and to determine which characteristics of biochar are best suited for each application.  In terms of how large-scale harvesting of reed could affect the ecosystem is also unclear, there is not enough research regarding the question to be able to draw clear conclusions. The reasoning behind this is that there are knowledge gaps, geographical differences, different unit measuring and methodology. The potential for biochar in the coal market is high and the demand in Sweden has risen over the past couple of years. There is also interest in using biochar as a soil amendment, to make use of nutrient content as well as applying organic matter to soils to potentially achieve long-term carbon sequestration. However, the production cost of biochar out of reed is relatively expensive, and it cannot compete with coal or other fertilisers/soil amendments on the market, with feedstock management usually being the most expensive part of production. Lastly, there is currently no harvesting method that can measure the amount of reed that needs to be harvested to be able to produce biochar on a large scale. / Klimatet på jorden blir allt varmare och värmeböljor, övergödning, stigande havsnivåer, extrema väder som översvämningar, torka och bränder är ett stigande problem. Syftet med denna kandidatuppsats är att undersöka potentialen att mildra eutrofiering och samtidigt bidra till blå tillväxt genom att skörda - och använda sig av vass som Phragmites australis och Arundo donax. Vass har en framträdande förmåga att absorbera näringsämnen. Det finns därför möjligheter att använda dem som råvara för att producera biokol som potentiellt kan användas i områden såsom jordförbättring, fodertillsatser och kolbindning. Utöver detta undersöks optimala egenskaper för biokol enligt de observerade applikationerna. Kandidatuppsatsen bygger på en systematisk litteraturstudie och en intervju med Niclas Anvret på den ideella organisationen ”Race for the Baltic”.  Resultaten indikerar att biokol, producerad i pyrolys enligt parametrar som uppvärmningshastighet, biomassa och i synnerhet olika temperaturer, resulterar i varierande egenskaper som förändrar biokolets absorptionsförmåga, bibehållande av näring, alkalinitet, stabilitet, ytarea och porositetsvolym. De olika tillämpningarna av biokol är emellertid svåra att avgöra på grund av vissa biokolegenskaper. Dessa egenskaper är framträdande under helt olika pyrolysförhållanden men kan samtidigt vara fördelaktiga för samma typ av applikation. Dessutom påverkar de olika attributen ibland varandra vilket ger upphov till komplexa trender som påverkar användningspotentialen. För att kunna dra tydliga slutsatser behövs mer forskning för att klargöra sambandet mellan biokolens attribut och för att bestämma vilken samling egenskaper hos biokol som passar bäst för varje applikation.  Hur storskalig skörd av vass kan påverka ekosystemet är fortfarande oklart. Det finns inte tillräckligt med forskning kring frågan för att kunna dra tydliga slutsatser. Detta beror på att det finns kunskapsluckor, geografiska skillnader, olika måttenheter och metoder för de studier som gjorts inom detta område. Potentialen för biokol på kolmarknaden är hög och efterfrågan i Sverige har ökat de senaste åren. Det finns också intresse för att använda biokol för jordförbättring, dels för att använda näringsinnehållet men också för att applicera biokol i jorden för att potentiellt uppnå långvarig kolbindning. Dock är produktionskostnaden för biokol gjort på vass mycket kostsam och kan därför inte konkurrera med fossilt kol eller andra gödselmedel jordförändringar på marknaden. Detta beror främst på råvaruhanteringen som är den dyraste delen av produktionen. Slutligen finns det för närvarande ingen skördemetod som kan mäta den mängd vass som behöver skördas för att kunna producera biokol i stor skala.

In archaeological research, the province of Uppland has often been viewed as the northern ‘periphery’ of the Nordic Bronze Age region. At the same time, many researchers have also emphasized the distinctive and ‘independent’ regional character of Uppland and northern Mälardalen. Throughout the twentieth century, Late Bronze Age contacts between Uppland and areas to the east – especially Finland, the Baltic countries and Russia – were much discussed and played an important role in the creation of Mälardalen as a distinctive Bronze Age region. This dissertation examines how images of the Late Bronze Age in the Mälardalen region, more specifically Uppland, have been formed from the late nineteenth century until today, and how views on eastern contacts have affected interpretations of Bronze Age Uppland. The study consists of three parts: 1) A critical discussion on political dimensions of archaeology and archaeological concepts of contact, interaction, similarity and difference, with a special focus on Bronze Age research. 2) A historical examination of representations of the Late Bronze Age in Mälardalen and Uppland, including a discussion about contacts with northern Sweden and a case study of Broby, a Late Bronze Age site near Uppsala. 3) An analysis of debates on contacts between Mälardalen and areas further to the east, through case studies of bronze axes, so-called Mälar celts and Ananino celts, ceramics and inhumation burials. In the analysis, special focus is placed on the Volga-Kama region in Russia and archaeological research in Russia and the Soviet Union. The study shows that discussions on contacts and interaction between ‘East’ and ‘West’ have, in many ways, been affected by the changing political situation during the twentieth and early twenty-first centuries. Knowledge about archaeological research in Russia and the Soviet Union has been very limited among archaeologists in Sweden. In order to further investigate the character and importance of eastern contacts during the Late Bronze Age, more collaboration and exchange between researchers in the different countries is needed. Furthermore, in order to better understand eastern contacts, it is also necessary to investigate in greater depth the relations between Mälardalen and northern Sweden.