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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
The annual 14C data in tree rings is an outstanding proxy for uncovering extreme solar energetic particle (SEP) events in the past. Signatures of extreme SEP events have been reported in 774/775 CE, 992/993 CE, and ∼660 BCE. Here, we report another rapid increase of 14C concentration in tree rings from California, Switzerland, and Finland around 5410 BCE. These 14C data series show a significant i
We use Granger causality to investigate the influences of external forcings on subdecadal variability of regional near-surface air temperature (SAT) in past millennium simulations (period 850–1850 A.D.) of the Coupled Model Intercomparison Project Phase 5 (CMIP5) models. Our results strengthen the conclusion for robust influence of volcanic forcing on SAT during preindustrial times of the last mil
Despite the societal importance of extreme hydroclimate events, few palaeoenvironmental studies of Scandinavian lake sediments have investigated flood occurrences. Here we present a flood history based on lithological, geochemical and mineral magnetic records of a Holocene sediment sequence collected from contourite drift deposits in Lake Storsjön (63.12° N, 14.37° E). After the last deglaciation,
In response to customer specific service time guarantee requirements, service providers can offer differentiated services. Although response time agreements offer more flexibility, most of the theoretical models for customer differentiation are based on fill rates, due to the difficulty of calculating the response time distribution in the presence of priorities. In this paper we focus on the (S−1,
Bakgrund: Innebandy är en sport med hög skaderisk då spelet involverar snabba sväng- och vridrörelser som påfrestar kroppen. Knäleden är den led som är mest drabbad av idrottsskador. Flera studier visar att kvinnor har en högre risk att drabbas av knäskador än män. Implementering av skadeförebyggande träning har i studier resulterat i en minskad knäskadefrekvens för spelare. Trots att studier visa
ASG Commons and Commoning - Human Rights and Sustainability Syftet med denna ASG är att en skapa ny förståelse och att vidga forskningen om den gemensamma, förståelsen för den sociala praxisen när det gäller att skapa och upprätthålla allmänningar. Djupt rotad i det mänskliga samhällets historia har allmänningen blivit erkänd som något grundläggande för det historiska mänskliga förhållandet till m
https://www.pi.lu.se/sites/pi.lu.se/files/asg_commons_and_commoning.pdf - 2026-07-18
9:00 Välkomna! 9:10-9:50 SweNanoSafe : Kartläggning av hinder och åtgärder för säker hantering av nanomaterial 9:50-10:30 Niklas Jungerth, Swedish Standards Institute, projektledare för Nanoteknik SIS/TK 516: Standarder för nanomaterial 10:30-11.30 Fika och posterutställning 11.30-12.30 Otmar Schmid, head of the Pulmonary Aerosol Delivery Group, Helmholtz Zentrum in Munic: Nanomaterial dosimetry i
https://www.pi.lu.se/sites/pi.lu.se/files/schema_nanosafetydag.docx - 2026-07-18
Keymeulen B Page 1 KEYMEULEN Bart Date, Place of Birth February 14, 1961, Aalst - Belgium Nationality Belgian Address Diabetes Research Center Vrije Universiteit Brussel Laarbeeklaan 103 B-1090 Brussel, Belgium Tel. 32-2-4774541 Fax. 32-2-4774545 E-mail: Bart.Keymeulen@vub.be Diabeteskliniek UZ Brussel Laarbeeklaan 101 B-1090 Brussel, Belgium Tel. 32-2-477 78 76 Fax. 32-2-477 78 03 E-mail: Bart.Ke
https://www.ludc.lu.se/sites/ludc.lu.se/files/engelstalig_academisch_cv_b_keymeulen_08.01.2019.pdf - 2026-07-18
The performance of eight fast-response methane (CH4) gas analysers suitable for eddy covariance flux measurements were tested at a grassland site near the Cabauw tall tower (Netherlands) during June 2012. The instruments were positioned close to each other in order to minimise the effect of varying turbulent conditions. The moderate CH4 fluxes observed at the location, of the order of 25 nmol m(-2
Aim To assess statistically the relative importance of climate and human impact on forest composition in the late Holocene. Location Estonia, boreonemoral Europe. Methods Data on forest composition (10 most abundant tree and shrub taxa) for the late Holocene (5100-50 calibrated years before 1950) were derived from 18 pollen records and then transformed into land-cover estimates using the REVEALS v
A detailed stratigraphical, palaeoecological and geomorphological reconstruction of a fjord head on South Georgia (Husvik, Stromness Bay) is presented. Six sites were chosen to reconstruct the lithostratigraphy of the area by means of coring. A maximum depth of 11m was attained and the sediments encountered vary from coarse gravel over sands to fine silts with, in some cases, intercalated peat lay
We report on a sediment record from a small lake within the subarctic wetland complex Stordalen in northernmost Sweden covering the last 1000 years. Variations in the content of minerogenic material are found to follow reconstructed variations in the activity of the Sun between the 13th and 18th centuries. Periods of low solar activity are associated with minima in minerogenic material and vice ve
Subantarctic islands are located within the Antarctic Circumpolar Current and the southern westerly wind belt, the latter called Southern Westerlies, making them unique terrestrial archives to investigate past changes in oceanic and atmospheric circulation patterns in the southern mid-latitudes. The islands are characterised by a treeless, phanerogam-poor flora in which bryophytes are of major imp
This study explores the relationship between land-use and floristic diversity between 600 BC and AD 2008 in the uplands of southern Sweden. We use fossil pollen assemblages and the Regional Estimates of Vegetation Abundance from Large Sites (REVEALS) model to quantitatively reconstruct land cover at a regional scale. Floristic richness and evenness are estimated using palynological richness and RE
Efforts to extract a Greenland ice core with a complete record of the Eemian interglacial (130,000 to 115,000 years ago) have until now been unsuccessful. The response of the Greenland ice sheet to the warmer-than-present climate of the Eemian has thus remained unclear. Here we present the new North Greenland Eemian Ice Drilling ('NEEM') ice core and show only a modest ice-sheet response to the st
Measurements of Last Interglacial stable water isotopes in ice cores show that central Greenland delta O-18 increased by at least 3 parts per thousand compared to present day. Attempting to quantify the Greenland interglacial temperature change from these ice core measurements rests on our ability to interpret the stable water isotope content of Greenland snow. Current orbitally driven interglacia
The purpose of the INTIMATE project is to integrate palaeo-climate information from terrestrial, ice and marine records so that the timing of environmental response to climate forcing can be compared in both space and time. One of the key difficulties in doing this is the range of different methods of dating that can be used across different disciplines. For this reason, one of the main outputs of
In this paper we present new relative sea-level data from southern Greenland, a key area for understanding the Greenland Ice Sheet (GIS) response to climate change. Within fourteen lakes and marine lagoons from the inner part of Bredefjord (Nordre Sermilik) in southern Greenland, isolations revealed by stratigraphic and palaeoecological analyses are dated and relative sea levels reconstructed. Due
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
