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Inom kärnkraftsverken, läkemedelsindustrin, biotekniklaboratorier mfl är det vanligt att det radioaktiva ämnet 14C förekommer i olika former. Inom kärnkraftsverken som en biprodukt vid elproduktion och inom läkemedelsindustrin används det som markör för att studera hur sunbstansen distribueras i kroppen. Genom inandning vid t ex oförsiktighet kan de människor som arbetar med dessa olika substanserWith the help from accelerator mass spectrometry (AMS), hair from workers within the nuclear power industry, pharmaceutical and biotechnology industry has been investigated to see if contamination from 14C. 14C-using companies and nuclear power plants were contacted, volunteers were recruited, who sent in hair samples together with a questionnaire. The samples were washed and prepared for 14C anal

Transpiration drives up to 40 % of terrestrial precipitation, with forests playing a critical role. This study combines long-term sap flow measurements and surface-based cloud observations to examine how different clouds affect tree transpiration across boreal and temperate European forests. Under specific cloudy conditions, sap flow can exceed clear-sky levels, reflecting distinct radiation effec

The mountain front recharge (MFR) process significantly influences the movement of water and dissolved organic carbon (DOC) in alpine catchments. However, no existing watershed models can adequately simulate this process, hindering accurate quantification of streamflow and DOC dynamics. To address this gap, this study explicitly incorporated the MFR process into a watershed-scale integrated water–

Insect and disease outbreaks in forests are biotic disturbances that can profoundly alter ecosystem dynamics. In many parts of the world, these disturbance regimes are intensifying as the climate changes and shifts the distribution of species and biomes. As a result, key forest ecosystem services, such as carbon sequestration, regulation of water flows, wood production, protection of soils, and th

Traits that affect organismal fitness are often highly genetically variable. This genetic variation is vital for populations to adapt to their environments, but it is also surprising given that nature – after all – ‘selects’ the best genotypes at the expense of those that fall short. Explaining the extensive genetic variation of fitness-related traits is thus a longstanding puzzle in evolutionary

Under sustained global warming, Arctic climate is projected to become more responsive to changes in North Pacific meridional heat transport as a result of teleconnections between low and high latitudes, but the underlying mechanisms remain poorly understood. Here, we reconstruct subarctic humidity changes over the past 400 kyr to investigate the role of low-to-high latitude interactions in regulat

Elevated air temperature and atmospheric vapor pressure deficit (VPD) are key drivers of plant physiological and ecological processes. However, their relative impacts on vegetation productivity remain difficult to isolate due to the strong coupling between them. This coupling complicates efforts to disentangle independent effects, particularly under compound drought conditions at regional or globa

Shallow lakes worldwide face escalating pressures from eutrophication and climate change, yet comprehensive monitoring of Chlorophyll-a (Chl-a) spatiotemporal dynamics remains challenging due to the high costs and logistical constraints of traditional sampling approaches across large, heterogeneous water bodies. Lake Balaton, a large shallow lake system (80 km long, 7 km wide, 3.7 m mean depth) in

Understanding greenhouse gas fluxes in semi-arid ecosystems is critical for improving our understanding of biogeochemical cycles, particularly in underrepresented regions like the African Sahel. In these landscapes, greenhouse gas exchange arises from ground, trees, and water ponds, and is further shaped by environmental conditions and grazing. The carbon dioxide, methane, and nitrous oxide fluxes

Flash droughts, as sub-seasonal phenomena, are characterized by their rapid onset and significant impact on terrestrial ecosystems. However, understanding how vegetation responds to flash droughts and the mechanisms governing vegetation recovery remains elusive. Here, we analysed the response of vegetation productivity to flash droughts and identified the most relevant drivers controlling vegetati

Digital Twins are realistic digital representations of the physical world, frequently characterised by a two way link between digital and physical. Originating in manufacturing, they are now expanding to city and national scales. In this paper we explore connections between Geographic Information Science and National Digital Twins. Six different viewpoints and perspectives are presented on the top

I denna uppsats analyseras spelet Bioshock Infinite genom en analysmodell för ludologisk representation framtagen av Óliver Pérez Latorre, utifrån Robert Cassars adaption av Antonio Gramscis teori om kulturell hegemoni. Svårigheterna och konflikten inom det vetenskapliga fältet rörande spel adresseras inledande för att leda till en diskursanalys av spelet i sig, där vi ingående analyserar de ludis

Användarupplevelse och kundens nöjdhet vid användning av mjukvara blir en allt viktigare del av utvecklingen av digitala tjänster. Vi som användare är vana vid lättförståeliga flöden och snabba responstider, ett krav som ställs allt mer för digitala tjänster, då utbudet och konkurrensen mellan dessa växer varje dag. För att både attrahera nya kunder och behålla de nuvarande, satsar därför Telavox

Northwest China's arid climate and fragile ecosystems are becoming wetter and greener. However, the rapid expansion of photovoltaic (PV) infrastructure in this region alters land-atmosphere interactions, with potential consequences for local climate and water resources. Here, we use a combined climate and dynamic vegetation modeling approach to assess the effects of hypothetical PV deployment acro

Agroforestry systems – combining trees with crops and/or livestock – are increasingly promoted as sustainable and climate-resilient land-use strategies. Despite their widespread presence in the Sahel, experimental data on their potential as carbon sinks are scarce. This study presents a full-year, high-frequency dataset of CO2 fluxes in a Sahelian agro-silvo-pastoral parkland dominated by Faidherb

GEOL01 2016-03-31 GEOL01 Populärvetenskaplig text, instruktioner Ämne: Utgå från ditt kandidatarbete för din populärvetenskapliga text. Med tanke på att du kanske ännu inte kommit så långt i ditt arbete avseende resultat, får du skriva om varför ditt arbete är intressant för allmänheten i stort och i ett senare skede komplettera med dina resultat. Om du på ett populärvetenskapligt sätt kan förklar

https://www.geologi.lu.se/sites/geologi.lu.se/files/geol01_2016_pop_instruktioner.pdf - 2026-07-25

CFE wp- Nr 21 1Strategic Alliances in the Telecommunications Sector Strategic Alliances in the Telecommunications Sector An EC Competition Law Assessment Eva Meurling eva.meurling@svefo.se 2 CFE Working paper series no. 21 CENTRE FOR EUROPEAN STUDIES AT LUND UNIVERSITY: Box 52 Phone: +46 (0)46-222 88 99 SE-221 00 LUND Fax: +46 (0)46-222 40 06 Sweden Email: cfe@cfe.lu.se CFE Working paper series is

https://www.cfe.lu.se/en/sites/cfe.lu.se.en/files/2020-12/cfewp23.pdf - 2026-07-25

2014-03-12 LDC Verksamhetsstöd/programförmedling Besöksadress LDC, Margaretavägen 1A , Hämtställe 26 Telefon 046-222 9000, Telefax 046-222 13 99 E-post servicedesk@ldc.lu.se Internet http://www.ldc.lu.se Hej bästa programansvarig, Hoppas allt är bra med dig nu när våren börjar närma sig. Jag vill börja med att tacka dig för tålamodet, när jag inte har hunnit med alla ärenden som väntade på mig eft

https://www.it.lu.se/sites/it.lu.se/files/prog_nyhetsbrev_140312.pdf - 2026-07-25