Vad styr valet av värmesystem i nybyggda bostadshus? Är det teknikens effektivitet, klimatpåverkan eller något annat? I vårt examensarbete har vi granskat en ofta bortglömd men kraftfull påverkansfaktor: lagstiftningen. Mer specifikt undersöker vi hur Boverkets byggregler (BBR) och dess energikrav påverkar vilka uppvärmningslösningar som väljs i nyproduktion av flerbostadshus. Bakgrunden till arbeThe purpose of this study is to examine how the Swedish National Board of Housing, Building and Planning’s (Boverket) building regulations (BBR), particularly energy performance requirements, influence the choice of heating systems in newly constructed multi-family buildings. Through a combination of literature review, statistical analysis, and interviews with property sector representatives, the

This thesis investigates superconductivity in novel planar Josephson junctions fabricated from a hybrid Al/EuS/2DEG (InGaAs/InAs/InGaAs) heterostructure. Using electron-beam lithography, selective etching, and atomic layer deposition, Josephson junction devices, constrictions, and SQUID geometries were fabricated and a selection of the devices were characterized at millikelvin temperatures. The me

Modellering av naturliga bakgrundskoncentrationer av suspenderat sediment: En studie av Rødsand lagun Fehmarnbelttunneln står färdig 2029 och kommer minska tågrestiden till kontinenten med 2,5 timme. Det omfattande byggnadsprojektet innefattar bland annat tillverkning av betongtunnelsegment och muddring av havsbottnen. Modellering av sedimentspill vid muddring är en viktig del i arbetet för attAnthropogenic coastal and marine activities, like dredging of the seabed, can affect ecosystems through increased turbidity by raising the level of suspended sediment concentrations (SSC). To accurately validate spilled sediment, simulations of background concentrations are essential as both spilled and natural sediment is included in measurements. This thesis aims to improve the representation of

Sveriges tillväxt i förhållande till utvecklingen i vår omvärld uppvisar tre faser under de senaste 170 åren. Från 1890 till 1950 hade Sverige högre tillväxt än jämförbara länder. Sedan följde en fas med eftersläpning till omkring sekelskiftet 2000. Marknadshämmande regleringar av det finansiella systemet var en huvudorsak till eftersläpningen. Efter den finansiella avregleringen börjar en tredje

Framed within debates about the inclusivity of urban development, Ubuntu philosophy and an interest in non-metropolitan growth of ordinary places, 15 small but developing towns were selected across Uganda and Tanzania. Growth and development were evidenced by increase in night-time lights and densification/expansion of built-up areas. Analysis of c. 4,000 individuals asked which towns were more, o

Background: Prostate-specific membrane antigen (PSMA) is an important target for positron emission tomography (PET) with computed tomography (CT) in prostate cancer. In addition to overexpression in prostate cancer cells, PSMA is expressed in healthy cells in the proximal tubules of the kidneys. Consequently, PSMA PET is being explored for renal functional imaging. Left and right renal uptake of P

El Llibre de les fonts de la present Ciutat de Barcelona és un manuscrit conservat a l’Arxiu Històric de la Ciutat que recull el coneixement que existia sobre l’abastiment d’aigua de boca a Barcelona a mitjan segle XVII. Va ser escrit l’any 1650 pel mestre de cases Francesc Socies, qui tenia l’ofici (el càrrec) de mestre de les fonts i, per tant, era el responsable del correcte funcionament del si

PrologMikrovågs-hypertermi och strålbehandling (1980–1990)Min tidiga forskning inom medicinsk strålningsfysik ledde till kombinerad behandling av bröstcancer-recidiv med mikrovågsinducerad hypertermi och lågdos strålning (30 Gy). Kliniska försök inleddes med patienter som tidigare fått full stråldos (60 Gy). Utrustningen visades upp för kung Carl XVI Gustaf och drottning Silvia på Forskningens Dag

Deuteron evaporation was observed from the N = Z compound nuclei 52Fe, 56Ni, and 64Ge in an experiment conducted at Argonne National Laboratory, USA. The experiment included a novel combination of two highly pixelated double-sided Si-strip detectors inside the Microball charged-particle detection array, allowing for unequivocal discrimination of evaporated deuterons from protons and α particles. I

Non-polar and semi-polar III-nitrides have beneficial properties for various electronic applications such as light emitting diodes and photodetectors due to the elimination or reduction of polarization effects. However, cost-effective manufacturing of non-polar and semi-polar III-nitride films with sufficient film quality is not feasible yet. We report an investigation of the morphological and str

Objective: To analyze the outcomes of urgent/emergent endovascular aortic repair of patients with free/contained ruptured thoracoabdominal aortic aneurysms (rTAAA). Background: Endovascular repair of rTAAA has been scarcely described in emergent setting. Methods: An international multicenter retrospective observational study (ClinicalTrials.govID:NCT05956873) from January 2015 to January 2023 in 6

I takt med att hållbarhet blir viktigare söker många företag inom jordbrukssektorn lösningar för att fasa ut fossila drivmedel. Utmaningen blir ännu mer komplex när ersättningen ska vara kompatibel med en existerande fordonsflotta, utan investering i nya fordon. Denna studie jämförde fyra kommersiellt tillgängliga och förnybara drivmedel med referensbränslet diesel. De undersökta drivmedlen är HVAs sustainability becomes more important in today's society, many companies in the agricultural sector are looking for new alternatives to fossil fuels. The challenge becomes even more complex when the replacement must be compatible with an existing vehicle fleet, without requiring new investments in vehicles. This report compares four commercially available and renewable fuels, using convent

Plant-based ice cream and whipping cream are increasingly popular as sustainable alternatives to traditional dairy products. Their low fat content makes them much healthier than high-fat dairy products. However, achieving desirable texture and stability in plant-based desserts remains a challenge. This study investigated how different processing conditions (homogenization pressure, upstream/downst

This study evaluated the efficacy of reduced-temperature pasteurization in preserving the nutritional, sensory, and microbial integrity of two fruit juice products: a standard orange juice and a probiotic mango juice enriched with Lactiplantibacillus plantarum 299v, conducted at Österlenmejeriet AB in Lunnarp, a subsidiary of Danone. Laboratory-scale thermal treatments were applied at temperatures

Fruit-based beverages, such as juices and ciders, are widely consumed due to their nutritional value, but are also susceptible to microbial spoilage, contributing to food waste. This study aimed to investigate the presence and behaviour of spoilage microorganisms along the production lines of two fruit-based beverages: apple cider and a pear fruit drink. Sampling was conducted at various proce

Bangladesh faces recurrent and severe flooding due to its low-lying topography and intense monsoon climate, making it one of the most flood-prone countries in the world. These floods pose significant threats to human life, infrastructure, and economic stability which is projected to intensify under future climate change scenarios. This thesis presents a flood susceptibility assessment using the An

Stair width, riser height, tread depth and design may vary between different stairs. This study investigated how stairs with a variation of dimensions and designs affect people’s walking patterns, walking speed, and risk of falling. The thesis involved conducting observations and video recordings in six stairways with varying width, riser height, tread depth, and design, in addition to a brief lit