Filtyp
Permafrost in peatlands of subarctic Sweden is presently thawing at accelerated rates, which raises questions about the destiny of stored carbon and nutrients and impacts on adjacent freshwater ecosystems. In this study we use peat and lake sediment records from the Stordalen palsa mire in northern Sweden to address the late Holocene (5,000 cal BP-present) development of the mire as well as relate
Dendrochronological analysis was applied to subfossil remains of Scots pine (Pinus sylvestris L.) buried in a South Swedish peat deposit. In combination with peat stratigraphy, this approach was explored for its potential to provide information on the local hydrological and depositional history at the site, forming the basis for a regional palaeohydrological analysis. A 726-year ring-width chronol
An important constraint on the reliability of cosmogenic nuclide exposure dating is the rigorous determination of production rates. We present a new dataset for Be-10 production rate calibration from Mount Billingen, southern Sweden, the site of the final drainage of the Baltic Ice Lake, an event dated to 11,620 +/- 100 cal yr BP. Five samples of flood-scoured bedrock surfaces (58.5 degrees N, 13.
Comparison between growth variability, based on ring-width (RW) analysis, and moisture-sensitive signals in tree-ring carbon and oxygen stable-isotope composition provides increased understanding of how climate and hydrology influenced bog pines (Pinus sylvestris L) at two sites in southern Sweden during the mid- and late Holocene. Tree-ring sequences from two subfossil trees collected at raised b
We used the radiocarbon wiggle-match dating technique to date the varved sediments of Lake Gyltigesjon in southern Sweden with the main aim to construct an accurate chronology covering the period between about 3000 and 2000 cal BP. Wiggle-match dating was applied to bulk sediments to evaluate the possibility of constructing accurate chronologies in the absence of terrestrial plant macrofossils and
This thesis aims to test and evaluate the use of image-based 3D modelling techniques on rune stones. To test the method a well-documented rune stone was chosen, Hyby stone 1. The stone has been dated to the Viking Age and contains 37 runes, whereof 29 are still visible, two crosses and a stag. These carvings have been detected by other scholars with the use of non-digital methods. In order to eval
Kvidingefältet ligger i nordvästra Skåne på Söderåsens nordöstra sida och avlagringen är ett delta som bildades i en havsvik under deglaciationen av området. Syftet med undersökningen är att göra en arkitektonisk analys av Kvidingedeltats tredimensionella uppbyggnad och att ta reda på hur deltautbyggnaden gått till. Sedimentologiska studier i form av översiktskartering utfördes i åtta av täkternasThe Kvidinge deposit is situated in north-western Scania, southern Sweden. It is a delta formed in a bay during the deglaciation of the area. The purpose of the investigation is to do an architectural analysis of the threedimensional build-up of the Kvidinge deposit and to reconstruct the progradation of the delta. Sedimentary studies have been performed in eight sections and seven logs have been
Populärvetenskaplig sammanfattning: Undersökningens baseras på prover från hårdvävnaden hos belemniter som är en utdöd form av bläckfisk. Syftet var att undersöka de NO-skånska kretaceiska belemniternas stabila isotopinnehåll, samt att analysera deras diagenetiska och paleoklimatologiska status. Belemniterna kommer från fyra lokaler: Ullstorp, Ignaberga, Åsen och Balsvik vilka alla ligger i KristiStable isotope compositions (δ18 0 and δ13 C) and cathodoluminescence characteristics were determined in 112 belemnite rostra, including Belemnellocamax grossouvrei, Belemnitella alpha, Belemnellocamax mammillatus, Belemnellocamax balsvikensis, Gonioteuthis quadrata scaniensis, Belemnitella mucronata and Belemnella lanceolata. The main aims were to determine palaeoenvironmental and diagenetic infl
By employing metal salts in dilute-acid pretreatment the severity can be reduced due to reduced activation energy. This study reports on a dilute-acid steam pretreatment of spruce chips by addition of a small amount of ferrous sulfate to the acid catalyst, i.e., either SO(2), H(2)SO(3) or H(2)SO(4). The utilization of ferrous sulfate resulted in a slightly increased overall glucose yield (from 74%
Long-term records of environmental history at decadal to millennial time-scales enable an assessment of ecosystem variability and responses to past anthropogenic disturbances and are fundamental for the development of environmental management strategies. This study examines the local variability of land-use history in the South Swedish Uplands over the last 200 years based on pollen records from t
We aim to provide a long-term ecological analysis of land-use and floristic diversity in the transition from traditional to modern land-use management in the time a.d. 1800-2008 in southern Sweden. We use the Regional Estimates of Vegetation Abundance from Large Sites (REVEALS) model to quantify land-cover changes on a regional scale at 20-year intervals, based on the fossil pollen record. Florist
Sedimentary records of invertebrate assemblages were obtained from a small lake in the Khibiny Mountains, Kola Peninsula. Together with a quantitative chironomid-based reconstruction of mean July air temperature, these data provide evidence of Holocene climate variability in the western sector of the Russian Subarctic. The results suggest that the amplitude of climate change was more pronounced in
Precise measurements of the lifetimes of the first excited 2(+) states in the stable even-A Sn isotopes Sn112-124 have been performed using the Doppler shift attenuation technique. For the isotopes Sn-112, Sn-114 and Sn-116 the E2 transition strengths deduced from the measured lifetimes are in disagreement with the previously reported values and indicate a shallow minimum at N = 66. The observed d
Dendroclimatic investigations of subfossil Scots pine (Pinus sylvestris) from two raised bogs in southern Sweden yielded a continuous floating 1492-year long tree-ring record. By cross-dating with bog-pine chronologies from Lower Saxony, Germany, the South Swedish record was assigned an absolute age of 5219-3728 BC. The cross-match between ring-width chronologies from these two regions, separated
A Holocene sediment sequence from Lake Seukokjaure, a subarctic lake at tree-line in northern Sweden, was analyzed to assess major changes in the structure and functioning of the aquatic ecosystem in response to climate change and tree-line dynamics. The compiled multi-proxy data, including sedimentary pigments, diatoms, chironomids, pollen, biogenic silica (BSi), carbon (C), nitrogen (N) elementa
If as Hersch Lauterpact stated in the most overly quoted Humanitarian Lawyers phrase in Oppenheim's International Law, International Humanitarian Law lies at the vanishing point of International Law, then I would posit that it is only the continuance of education particularly education in LOAC that prevents it from vanishing altogether. The preservation of the buildings housing that education
Collective action can be challenging in the governance of common pool resource. While social learning has the potential to facilitate negotiations and communications, power imbalance can still challenge the common pool resource (CPR) governance. In an attempt to study collective action in that context, I undertook a qualitative case study at the Cañete basin, Peru. The primary data was manly colle
Övervägande del av förundersökningar av brott mot barn läggs ner. När förövaren dessutom är en närstående eller förälder försvåras utredningen avsevärt då det sällan finns vittnen och barnet kanske inte inser att de blivit utsatta för ett brott. Dessa ärenden utreds ibland inte heller av socialnämnden trots att mängden orosanmälan ökar. Barnet har ett speciellt behov av skydd och samhället har ettMost investigations of crimes against children are terminated before being brought to court. The investigations become significantly more complicated when the perpetrator happens to be a family member or parent. Some of the difficulties occur because the child may not realize that they have been victimized and there are rarely witnesses to the acts. Children have a special need for protection and
