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Biogenic volatile organic compounds (BVOC) are known as hydrocarbons emitted into the atmosphere from the biosphere. They have physiological and ecological functions such as communication within the plant and plant – plant, protection against environmental stress factors and defense against herbivores attack. Coniferous forests are known to produce larger quantities of BVOCs, especially terpenes,
En stor del av samhällets miljöpåverkan kommer från bygg- och fastighetssektorn. Från årsskiftet 2022 finns det nya krav för nybyggnationer på att en klimatdeklaration ska genomföras för bärande konstruktionsdelar, innerväggar samt klimatskärmar. Kraven kan vara ett startskott för att fler delar i byggnader ska klimatdeklareras. Projekt Villazero, ett småhus som uppförs i Borlänge av Fiskarhedenvi
This thesis was dedicated to investigating the use of different parameter update schemes for Hidden Markov models with time-varying parameters, with an emphasis on developing alternatives to the quasi-Newton step. The focus was on applications to financial returns, using data from the S\&P-500 and the Nikkei index, and for comparison, a trial using synthetic data was also performed. Different
Introduction:The XenX is a small animal irradiation system that acquires high-resolution cone-beam tomography (CBCT) images of small animals and treats small animals with higher precision than medical linear accelerators. MuriSlice is a software for CBCT image reconstruction. This thesis aims to optimise the CBCT image reconstruction protocol in MuriSlice to enable the segmentation of CBCT images
A technique for measuring oxygen concentration in the lungs of preterm infants is one of the latest advancements in neonatal care. It is called GAs in Scattering Media Absorption Spectroscopy (GASMAS) and enables non-invasive, bed-side monitoring of the lung function of our most fragile patients, preterm newborns. The technique is promising and its potential is now evaluated in preparation for cli
Governance and ideology have significant influence on how problems and policies are conceptualized. This conceptualization affects the way in which political subjects are formed and how individuals regard themselves. In this paper we approach environmental policy from a post-structuralist stance. Our ambition is to demonstrate a paradoxical relationship between the current consumer oriented repres
Due to the public health threat that antibiotic resistance poses to humanity, there is increasing interest for understanding the mechanisms behind the development and transfer of antibiotic resistance genes (ARGs) in different environments. Soil is one of the largest and most diverse microbial habitats on earth and represents a vast terrestrial reservoir of organisms with tolerance to antibiotics.
Tack vare internet är det idag möjligt för en slutkund att jämföra priser och produkter online på olika hemsidor, innan slutkunden väljer att genomföra köpet. Det stora utbudet av varor och tjänster på internet har ökat konkurrensen på marknaden. För att tackla den ökade konkurrensen på marknaden har många aktörer online valt att använda sig av avtalsbegränsningar med sina avtalsparter. Bland annaIt is nowadays possible, thanks to the internet, for an end-customer to compare prices and products online on different websites, before choosing to make the purchase. The wide range of goods and services on internet has increased competition on the relevant market. In order to tackle the increased competition on the market, many online operators have chosen to apply contractual restrictions with
It is a common practise to quote option prices using their BlackScholes implied volatility. A volatility surface describes an options implied volatility as a function of the strike price and time to maturity. It can be used as a tool for hedging but also valuation when prices are not directly observable. The short-term evolution of this surface has been described by a variety of apocryphal rules.
Det saknas ett specifikt lagskydd för personlig integritet i anställningsförhållande. Frågan om speciallagstiftning på området har lyfts flertalet gånger men har aldrig resulterat i ny lagstiftning. Därmed har den svenska implementeringen av dataskyddsdirektivet, personuppgiftslagen utgjort det övergripande skyddet för hur och när arbetstagarnas personuppgifter får behandlats. Den 25 maj 2018 ersa
Biogenic volatile organic compounds (BVOC) are emitted naturally from the biosphere to the atmosphere and are a part of the global carbon emissions. BVOCs are contributing to around 5-10% of the total net carbon exchange to the atmosphere. The BVOC emissions from the biosphere are mainly from plants and other organisms and consists of many different compounds, such as isoprene, monoterpenes (MT) a
Problembeskrivning: Lagerdesign är en erkänt komplex process, då många faktorer måste tas i beaktande och många beslut innefattar diverse trade-offs. De flesta lagerdesignprojekt idag baseras antingen på lagerdesignerns ackumulerade expertis och erfarenhet från liknande projekt eller på detaljerade simulationer över materialflöde och utrustning. I dagens snabba affärsklimat finns det dock sällan t
With the transistor being the workhorse in modern electronics it has been vastly improved since its invention. However, the previous go-to improvement method of scaling it down has reached a dead end. Power dissipation has become a large concern and is in need of a solution. In the pursuit of further improving the transistor structure and its performance new approaches are being evaluated. A very
Automated manufacturing processes are an important component of today’s industries. Assuming the processes are properly maintained they allow for great efficiency when producing various goods. Image analysis can be used as a tool to monitor such processes and evaluate their results. This Thesis treats development of algorithms for automatic evaluation of images acquired using a standardized proce
Problem definition Additive manufacturing is a technology that has received a lot of attention and many are wondering how it will affect them plastic industry in the future. Additive manufacturing is mostly used for prototyping today but there is reason to believe that the technology has potential to overtake other application areas for plastic or used as a complementary method to existing manufac
This thesis work is part of a larger project with final goal to be able to measure the oxygen concentration in the lungs of infants, using non-invasive laser spectroscopy. This thesis is specifically dealing with simulations of light transport through the upper body of infants, as well as constructing a tissue-like model (phantom) that can be used in experiments. The goal is to use these simulatio
Ett behov av bostadsförtätning i städerna grundar sig i den ständigt ökande befolkningen, urbaniseringen och influensen av hållbar utveckling. Förtätningen är ett stadsplanerarverktyg som stödjer en hållbar stadsutveckling och ska möta efterfrågan efter centralt belägna bostäder. Syftet med examensarbetet är att undersöka möjligheter för de olika förtätningsstrategier som finns samt vilka som går
Bakgrund: Att vara förälder till barn med funktionsnedsättning innebär ofta ökade stressfaktorer i vardagen med de ökade behov barnet har. Stress, ångest och depression är vanligt förekommande samt bortprioritering av meningsfulla aktiviteter, vilket kan leda till aktivitetsobalans. Syfte: Syftet med studien var att i vetenskapliga studier undersöka interventioner för föräldrar till barn med funkt
