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The recent developments in stochastic and quantum thermodynamics has laid the foundation for developing highly efficient devices that utilizes quantum effects. One such device is a quantum dot heat engine, that consists of one or more quantum dots tunnel coupled to two leads. By tuning the energy levels of the quantum dots appropriately one can obtain a flow of electrons through the quantum dot sy
Byggbranschen är i dagsläget en av de störst bidragande faktorerna till utsläpp av fossila bränslen i Sverige och besitter en stor utvecklingspotential beträffande reducering av klimatpåverkan. En byggnads klimatpåverkan under en livscykel kan beräknas genom metoden livscykelanalys, som inkluderar en produkts, eller i detta fall en byggnads, klimatpåverkan från råvaruutvinning till avfallshanterinThe construction industry is currently one of the largest contributing sources to carbon dioxide emissions in Sweden and has great development potential in reducing its climate impact. Since January 2022, the Swedish government requires a declaration of the climate impact of each recently constructed building. To calculate the climate impact of a building, the life cycle assessment tool is used, a
Bygg- och fastighetssektorn stod år 2020 för 21% av Sveriges totala utsläpp av växthusgaser (Boverket, 2023a). För att synliggöra och därigenom minska klimatpåverkan vid uppförandet av nya byggnader blev det den 1 januari 2022 obligatoriskt att genomföra klimatdeklaration av nya byggnader som kräver bygglov, med vissa undantag (Boverket, 2021a). Klimatdeklarationen ska redovisa klimatpåverkan frånThe construction and real estate sector accounted for 21 % of Sweden’s total green-house gas emissions in 2020. To mitigate the impact of new buildings, the Swedish government introduced a new law on climate declaration for new buildings called “lag om klimatdeklaration”. The law requires most new buildings, which already re-quired building permits, to perform a climate declaration. The climate de
In this thesis, the phonetics and the phonology of non-modal voice quality and other glottal features in Chichimeco (Oto-Manguean, Mexico) are described. For this investigation, I analysed recordings I made in Mexico in spring 2017 as well as recordings enclosed in Lastra (2009b, 2016). Descriptions of this language have been published since the 1930s but non-modal phonation has not received the
Popular Abstract in Swedish Hur kan svenska myndigheter förbereda sig för att hantera nästa kris när det gäller tillgängligheten av deras mest kritiska informationssystem? Det är den centrala frågan i denna avhandling. Svenska myndigheter och kommuner har en central roll i det svenska krishanteringssystemet. Givetvis är svenska kommunala och statliga verksamheter väldigt beroende av IT-system. SjAs our dependence on IT systems increases, evaluating the dependability of critical IT systems becomes more important. This is especially true for systems that are critical in a crisis situation and whose dependability is an important factor in an organisation's capability to resolve a crisis. Because crisis situations are typically rare events, both the dependability and the criticality of IT sys
På grund av att miljöskatter kan användas som ett ekonomiskt styrmedel samtidigt som de även tillskrivs ett fiskalt syfte har användningen av dessa i gröna skatteväxlingar blivit populärt hos den svenska lagstiftaren. Att ersätta förlorade intäkter från inkomstskatt med intäkter från miljöskatter kan dock ibland visa sig vara problematiskt, eftersom miljöskatternas styrande effekt medför att de inEnvironmental taxes are often designed to both shift away demand from goods that have a negative impact on the environment, and to generate tax revenue to the public treasury. This makes them appropriate to use in green tax shifts, where the legislator is able to reduce other taxes, e.g. taxes on income, while still being able to maintain overall tax revenue. A green tax shift can however sometime
The work presented in this thesis was concerned with investigating the relevant spectroscopic properties of Ce ions randomly doped in an Y2SiO5 crystal at low temperatures (around 4 K), in order to develop a technique and an experimental set-up to detect the fluorescence photons emitted by a single Ce ion. The aim of the work was to determine whether a single Ce ion (referred to as the readout ion
Radiochromic film, polymer gel and radiochromic plastic are three different kinds of dosimeters developed for radiation therapy. Even though all three types of dosimeters are suitable for optical scanning, the proposed readout method is different for each detector system. In this study, the scanning properties of three optical CT scanners were investigated to determine if they could be developed i
Internet har bara de senaste årtiondena intagit en självklar roll i västvärldens vardag; genom denna kanal sker såväl social kommunikation och marknadsföring som affärstransaktioner och myndighetsutövning. Internets framväxt – och dess stigande antal användare – har givit upphov till nya behov av lagstiftning och normering; när den nya tekniken, vilken utvecklas och breddas för var dag som går, möFor the last decades, the Internet has become a natural factor in the every day life of citizens of the West; through this channel of communication, social media and advertising, as well as business transactions and exercising of authority is carried out on a daily basis. The development of the Internet – and its many users – have given rise to new needs for legislation and standards; when technol
Popular Abstract in English Blood, a deep red fluid, circulates in vessels throughout our body. It consists of two main components, a liquid part and a cell part. The liquid portion, which is also called ‘plasma’, takes a main function in transporting water, nutrients, and immune substances. The cell components, which are suspended in the plasma, consist of three main cell types including platelet
Popular Abstract in Swedish Avhandlingen behandlar skolverksamheten i en svensk medelstor kommun under perioden 1996-2005 med fokus på de delar av verksamheten som handlar om stödåtgärder för elever med skolsvårigheter Syftet med studien är att undersöka skolans bedömning av elevers skolsvårigheter i ett längre perspektiv, och innefattar bl.a. elevers subjektiva upplevelser och konsekvenser i skoThis thesis examines school activity in a medium-sized Swedish municipality 1996?2005 focusing on the parts of the activity that deal with support measures for pupils with school difficulties. The purpose of the study is to examine the assessment of pupils? school difficulties in a longer perspective, considering pupils? subjective experiences and consequences of the school's organisation and wor
Popular Abstract in Swedish Peptidaser, proteolytiska enzymer eller proteinhydrolaser är olika benämningar på samma sorts enzymer. Deras funktion är att bryta ner proteiner i alla celler, vävnader eller vätskor i antingen vår egen kropp eller i någon annan levande organism. Varför behövs dessa enzymer? Deras funktion påminner om den av en återvinningscentral, där peptidaserna avvecklar felfungeraProteolytic enzymes are enzymes that hydrolyze peptide bonds in peptides and proteins. This ability to carry out protein degradation is essential for many cellular and extracellular processes that occur in all living organisms. Cysteine peptidases constitute a class of proteolytic enzymes. Among these, papain-like (C1) peptidases are the mostly studied ones. Inhibitors regulate proteolytic activit
Popular Abstract in Swedish Svensk populärvetenskaplig sammanfattning av avhandlingen Olfaction in Desert Locusts – Anatomy, Function and Plasticity of the Central Olfactory System av Rickard Ignell, Ekologiska institutionen, Lunds Universitet 2001. Doftsinnet hos ökengräshoppor Att studera ökengräshoppans, Schistocerca gregaria, doftsinne är att försöka komma underfund med några av de mekanismeThe anatomy, function and plasticity of the primary olfactory centre, the antennal lobe (AL), of the desert locust Schistocerca gregaria was investigated using a number of neuroanatomical and neurophysiological methods. Anatomical characterisation of the AL in a number of orthopteran species made it possible to deduce a model concerning the evolution of microglomeruli. These neuropil structures, c
It is attractive to integrate a large deformable mirror for adaptive optics into an astronomical telescope rather than using relay optics within an auxiliary instrument. However, the resulting large deformable mirror can be expensive, particularly for extremely large telescopes. We have pursued a low-cost approach using force actuators connected to the back of the deformable mirror through suction
The aims were to assess the prevalence of ovarian tumors in fertile asymptomatic women and to evaluate the risk of ovarian cancer in women with a history of benign ovarian tumors and endometriosis. In order to search for biomarkers in ovarian tumors, the plasminogen activating (PA) system was studied. A random sample of women 25-40 years old was invited to a transvaginal ultrasonography examinati
Semiconductor nanostructure based devices provide new opportunities for contributing to a sustainable energy usage. This includes harvesting of energy (solar cells) and saving of energy, e.g. in lighting (light-emitting diodes, LEDs) and transfer of energy (power devices). However, development and improvement of nanostructure devices requires thorough characterization and understanding on a single
Lera är ett naturligt förekommande material och består utav små finkorniga lermineraler, vilka utgörs till stor del av laddade nanopartiklar, även kallade lerflak. Dessa har en platt form med en tjocklek på en miljarddels meter (1 nanometer) och diametern kan variera alltifrån fem till tusen gånger större än tjockleken. Detta kan jämföras med ett A4-ark, där längden på kortsidan är tusen gånger stClay minerals consist of clay platelets, which are anisotropic in both size and charge, and these can form a lamellar structure depending on the size, making it a seemingly perfect model system for an electrical double layer. The situation is however, from a structural point, slightly less ideal. Clay is a challenging system since it has a polydisperse distribution of anisotropic clay platelets an
Background: Whether high dairy consumption is related to longevity is still unclear, and additional studies of prospective cohorts with high-quality dietary data from populations with wide consumption ranges are needed. Objective: To examine the association between dairy consumption and mortality in a Swedish cohort. Design: Among 26,190 participants (62% females, 45-73 years old) without diabetesBackground: Whether high dairy consumption is related to longevity is still unclear, and additional studies of prospective cohorts with high-quality dietary data from populations with wide consumption ranges are needed. Objective: To examine the association between dairy consumption and mortality in a Swedish cohort. Design: Among 26,190 participants (62% females, 45-73 years old) without diabetes
A discussion covers a study made of greenhouse gas emissions in the transport of Russian natural gas to Germany and a comparing them with corresponding emissions from other fossil primary energy carriers. With the coming into force of the Kyoto protocol on 2/16/2005 climate protection strategies relying on a greater use of natural gas as a replacement for petroleum and brown and hard coal become mA discussion covers a study made of greenhouse gas emissions in the transport of Russian natural gas to Germany and a comparing them with corresponding emissions from other fossil primary energy carriers. With the coming into force of the Kyoto protocol on 2/16/2005 climate protection strategies relying on a greater use of natural gas as a replacement for petroleum and brown and hard coal become m
During 2015, in Svensk Juristtidning, one specific question has triggered debate: the question of what value – the penal value or the ‘meting out of punishment value’ – should constitute the starting point for the choice of sanction. The same question and debate served as source of inspiration for the subject of this thesis. The purpose of this thesis is to examine and elucidate Chapter 29 of the
