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Quantum memories are used for storing the quantum mechanical states of photons and release identical photons at a later time. This has many applications within the field of quantum computing and is also essential in order to achieve long range quantum communication and cryptography. In this thesis Atomic frequency comb (AFC) quantum memories were investigated. In particular, three-level memory sch

Summary: The aim of this palaeoecological study is to demonstrate and date human impact during the Mesolithic and the Neolithic time in an area considered to be relatively unsuitable for farming and livestock-breeding. The study area is located on the Kullaberg peninsula in northwestern Skåne, South Sweden. The peninsula constitutes a hilly bedrock terrain with Quaternary deposits in the topograph

The conodont fauna recovered from the Arenig strata of the "Stenbrottet" quarry represents two biozones, i. e. the underlying Baltoniodus triangularis/B. navis Zone and above, the Paroistodus originalis Zone. The thickness of the sediment and the composition of the conodont fauna were compared with those of contemporaneous localities from Öland, Västergötland, Jämtland and Bottenviken. I

In 1987 Swedish Exploration Consortium AB carried out a drilling (Köpingsbergsborrningen 3) in the Vomb Trough, Scania, southern Sweden. The borehole was sited near the town of Ystad and reached the Precambrian crystalline basement at a depth of 1160 m. Foraminiferal faunas obtained from the drill-cuttings indicate that the boring penetrated a Cretaceous and possibly uppermost Jurassic sequence, w

The mid-Rhaetic sequence at Lunnom, with coal and kaolinitic clays, indicates partly deltaic environments affected by alluvial processes during humid conditions. Of special interest is a thin bed of sandstone with coarse, angular quartz grains. The bed occurs mainly as a covering sheet on top of a heterolithic sequence in the eastern parts of the pit, while it is recognized as isolated dunes insid

The Silurian conulariid fauna in the Lower Visby Beds (uppermost Llandovery to lowermost Wenlock) on Gotland includes seven species: Ctenoconularia monile Lindström 1884, Ctenoconularia sp. a, Ctenoconularia sp. b, Conularina sp. a, Conularia scalaris Holm 1893, Metaconularia aspersa Lindström 1884 and Metaconularia sp. a. The research on conulariids has so far been based on macroscopic specimens

The Protogine Zone is a system of steep shear zones running approximately parallel to the boundary between the Svecofennian and the Southwest Scandinavian orogens of southern Sweden. The geological nature of the zone is not very well known, mainly because detailed mapping has not begun until recently. This work is the beginning of an attempt to start changing this situation. An area of l km², situ

This study constitutes a preliminary survey within the project "Lake and groundwater paleohydrology of the Vomb plain, southern Sweden, for quantitative paleoclimatic calibration". The aim of the study is to describe the Holocene sediment stratigraphy of the former lakes Fönesjön and Kalvsjön (Kalvs mosse), and furthermore to describe and date stratgraphical indications of climatically c

Behovet av effektiviseringar för lagföringen av personer som har begått brott har länge diskuterats framförallt ur ett effektiviserings perspektiv men även ur ett processekonomiskt perspektiv. Stora och komplicerade mål skapar långa och resurskrävande utredningar som dessutom låter den misstänkte sväva i ovisshet under en lång tid. Ett förslag som har diskuterats men som än så länge avskrivits äThe need to make the process in which persons who have committed crimes are brought to justice has long been discussed from a efficiency perspective but also from a process economical perspective. Large and complicated cases create long and costly investigations and also make the suspects linger in uncertainty for a long time. One alternative that has been discussed but so far discarded is the i

In the southwest of the county of Värmland, southwestern Sweden, a group of granite intrusions called the Blomskog granite occurs (Lindh, 1977). When the Blomskog granite intruded into the country rock about 900 Ma ago, it was accompanied by several dikes and massifs of pegmatite and pegmatitic granites, which often are garnet-bearing. E1ectron-microprobe studies of these garnets show that they ar

Sammanfattning: Tre kommunala vattentäkter med konstgjord infiltration i sydöstra Småland har studerats. I Emmaboda vattentäkt har infiltrationsvattnet alkaliserats med släckt kalk sedan 1977 och i Kosta med soda sedan 1985. Målsättningen med studien har varit att påvisa förändring i totalhårdhet, alkalinitet samt aluminium- och järnhalt för det konstgjorda grundvattnet sedan alkaliseringen påbörjA water chemistry study has been made at three public water supplies with artificial recharge in the county of Småland in the south of Sweden. At the water system of Emmaboda the surface water has been treated with slaked lime and at the water system of Kosta with soda ash. The aim of this study was to show whether the alkalization has changed the quality of the artificial ground water regarding i

ABSTRACT Author: Nicklas Bogren Title: Professionals view on cannabis use Supervisor: Eva-Malin Antoniusson During my practice in 2008 I heard a discussion about all the risks and all the consequences of cannabis use from both old and young employees. They did all have the same education as me, and referred to the gateway theory. I thought this was strange, because I have read both research and li

In this study pause patterns during writing were investigated and compared in a developmental perspective. The material consisted of keystroke logging recordings of the writing process of 30 expository texts written by 30 persons from the age groups 13-year-olds, 15-year-olds and 17-year-olds. A total number of 3080, all pauses longer than two seconds, were identified and categorized, according to

Author: Dragana Pribak Title: Longing for home - Four former Yugoslav immigrants' views on return migration (translated title) Assessor: Lars Harrysson The purpose of this study was to get a greater insight and understanding into how these people have been integrated into Swedish society and also to study which major factors played and made that most of these people did not return home again.

The municipal dump of Helsingborg, located next to Filborna in the north-east area of the town is subject to plans of expansion. A watersupply is situated 3 km's north-east of the dump. The purpose for this investigation is to make clear weather there is a possibility that water soaking through the dump is liable to contaminate the watersupply. To get a fair view of the groundwaterflow in the

Glacial and marine geomorphological features have been studied and mapped on the south coast of Gilsfjördur West-Iceland. In this region the main Icelandic ice-sheet is supposed to have met with a separate Vestfirdir ice-cap. Fossiliferous sediments in the area are assumed to be of Late Weichselian age. Sediment terraces in the valley mouths indicate that smaller glaciers existed in the valleys al

En wollastonitförekomst vid Stor Hulta gruvor i närheten av Nora har undersökts. I den nedlagda gruvan har tidigare skarnjärnmalm tillhörande leptitformationen brutits. I jämförande syfte har även wollastonit från Akatjvare i Tjåmotisområdet undersökts. Detta är LKAB:s prospekteringsobjekt och är beläget i Jokkmokks kommun. Resultaten för detta material, som utgörs av fyra stuffer av dubbel knytnäThe wollastonite occurrence at Hulta is a skarn deposit associated with iron ore within the Leptite Formation of central Sweden. Wollastonite is found in carbonate layers within the leptite and the rocks have been subject to regional metamorphism. These layers are normally approximately 10 cm thick. Corelogging, microscopic studies and X-ray diffraction show a varied composition of the rock, with

Gränsöverskridande e-handel ger upphov till en del juridiska problem inte minst då tvister uppstår mellan avtalsparterna. Något som diskuterats särskilt bland rättsvetare världen över, är vilket lands domstol som ska ha jurisdiktion när avtalstvister uppstår i detta sammanhang. I Bryssel I-förordningen finns vissa delvis tvingande domsrättsregler som är tillämpliga då avtalstvister uppstår mellaCross-border e-commerce gives rise to a number of legal issues. One particular difficulty, discussed by legal commentators all over the world, is how to allocate jurisdiction when disputes arise over e-contracts. The Brussels I Regulation contains certain semi-mandatory jurisdiction rules which apply in relation to contract disputes between traders and consumers. These rules give the consumer a r

Sammanfattning: Detta arbete består av tre mer eller mindre självständiga delar. I den första delen presenteras de olika systemen för utvinning och lagring av naturvärme. De två andra delarna innehåller en regional och lokal kartläggning, där tillgångarna bedöms. Valda områden är Kalmar län respektive Västerviks kommun. Naturen omkring oss kan användas både för utvinning och lagring av värme. Med During the last 15 years the heatpump technology has developed rapidly in Sweden due to the increasing prices of energy. One of the major sources for the heatpump is low-temperature energy from the enviroment. This might be heat from groundwater, surface water, soil or bedrock. The purpose of this report is to give an overview of the technical systems, and to evaluate the natural energy-resources