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The aim of this Master’s thesis is to evaluate what possible impact an increased use of groundwater may have on the spread of nitrogen pollution. The work is part of a larger project where Sweco Environment AB assists about 40 farmers in the “Köpinge - Vrams vattenförening” to apply for authorization for groundwater use in agricultural irrigation. The work was performed in three steps: a literatur
Avbildning genom detektion av Cherenkovstrålning är en nuklearmedicinsk bildtagningsmetod där man utnyttjar det synliga ljus som kallas Cherenkovstrålning. Detta ljus sänds ut när hastigheten hos en laddad partikel överstiger hastigheten av ljuset i ett visst medium och kan användas för att lokalisera fördelningen av en radionuklid i en kropp. Syftet med denna studie är att undersöka möjligheten aCherenkov emission imaging is a new optical imaging technique in nuclear medicine that takes advantage of the fact that most positron emitting radionuclides have a sufficient energy to produce Cherenkov photons. The Cherenkov photons can then be detected with sensitive CCD camera systems. Due to the recent demonstration of detectable amounts of Cherenkov light escaping from nuclide bearing mice th
Utsagor från vittnen är ett väsentligt inslag i en effektiv rättskipning. Hot och våld mot vittnen utgör därför ett stort hinder i det brottsbekämpande ar-betet. Om det allmänna inte kan erbjuda vittnen ett tillräckligt skydd vid så-dana angrepp, finns det risk att vittnen väljer att inte samarbeta med polisen, vilket i sin tur kan få till följd att grova brott förblir ouppklarade. I denna studie Statements by witnesses are an essential element of the efficient administra-tion of justice. The occurrence of serious forms of threats and violence to-wards witnesses and their relatives therefore constitutes a major impediment to the work in combating crime. If the public cannot offer witnesses suffi-cient protection from attacks, there is a risk that they will choose not to co-operate with the
Göta River, in Swedish Göta älv, is Sweden’s largest river as to flow rate. The surrounding river valley landscape is also among the most prone to landslides in the country, with cohesive sediments, including quick clay, as the dominant soil type. Both natural and anthropogenic erosion and sediment transport are occurring in the river, in the latter case induced by for example ship-generated waves
Background: The Mendelian Society of Lund launched Hereditas in 1920. The purpose of this article is to give an overview of Hereditas’s hundred-year existence, focusing on the conditions for a learned society to publish a scientific journal, and the journal’s importance for the publication and dissemination of genetic research. The article focuses on the historical development of the journal and a
Although a number of different medium access control (MAC) schemes are adopted for wireless multi-hop networks, time division multiple access (TDMA) approaches based on a periodic frame of time slots are the most common when very high efficiency is needed in terms of use of radio and energy resources. Efficient resource usage is typically based on parallel compatible transmissions from multiple no
Permanent Magnet Synchronous Motors (PMSMs) are becoming increasingly popular in traction applications. PMSMs have gained popularity due to their efficiency, compactness and excellent features related to control. This is mainly because of the permanent magnet placement in the rotor, which negates any additional rotor excitation, hence reducing energy losses considerably. This makes them more effic
Popular Abstract in Swedish Trumljud är det ljud som hörs i ett rum då ett objekt, till exempel en fot, träffar golvytan i samma rum. Ökande användning av tunna och hårda golvbeläggningar, såsom parkett och laminatgolv, kan leda till ljudstarka och skarpa ljud, vilket har ökat intresset av trumljud. En prediktionsmodell för den subjektiva responsen av trumljud vid en parvis jämförelse har tagits fDrum sound is the sound produced when an object, such as a foot, hits the flooring in the room in which the receiving ear is located. Drum sound has attracted interest in recent years, particularly due to an increased use of thin floating floor constructions, such as veneer or laminate flooring, which can produce loud and sharp walking sound. A prediction model of the subjective response, in a pai
Mnemonic discrimination, the ability to distinguish similar events in memory, relies on subregions in the human medial temporal lobes (MTLs). Tau pathology is frequently found within the MTL of older adults and therefore likely to affect mnemonic discrimination, even in healthy older individuals. The MTL subregions that are known to be affected early by tau pathology, the perirhinal-transentorhina
The incidence of stroke and dementia are diverging across the world, rising for those in low-and middle-income countries and falling in those in high-income countries. This suggests that whatever factors cause these trends are potentially modifiable. At the population level, neurological disorders as a group account for the largest proportion of disability-adjusted life years globally (10%). Among
BACKGROUND: The cultivated peanut (Arachis hypogaea) is one of the most important oilseed crops worldwide, however, its improvement is restricted by its narrow genetic base. The highly variable wild peanut species, especially within Sect. Arachis, may serve as a rich genetic source of favorable alleles to peanut improvement; Sect. Arachis is the biggest taxonomic section within genus Arachis and i
Background: Demographic changes combined with costly technological progress put a financial strain on the healthcare sector in the industrialized world. Hence, there is a constant need to develop new cost-effective treatment procedures in order to optimize the use of available resources. As a response, the concept of a Mobile Geriatric Team (MGT) has emerged not only nationally but also internatio
BACKGROUND: Modern modular implants allow surgeons to mix different combinations of components within the same brand. From 1999 to 2012, the NexGen®-CR Option femoral component, together with a NexGen® Option Stemmed tibial plate (stemmed baseplate), which uses a short central stem, was the most-frequently used NexGen® combination in the Swedish Knee Arthroplasty Register. However, from 1999 to 20
Atmospheric carbon dioxide enrichment (eCO2) can enhance plant carbon uptake and growth1–5, thereby providing an important negative feedback to climate change by slowing the rate of increase of the atmospheric CO2 concentration6. Although evidence gathered from young aggrading forests has generally indicated a strong CO2 fertilization effect on biomass growth3–5, it is unclear whether mature fores
