Det är möjligt att tillverka plast från socker med hjälp av bakterier, och även om detta bara görs på en relativt liten skala idag så kommer tillverkningen av biobaserad plast troligtvis öka väsentligt de kommande decennierna. Denna typen av plast tillverkas på förnybara råvaror, och är därför ett bra alternativ till plast som är baserad på fossila råvaror, som petroleum. För att öka hållbarheten Membrane filtration was used to concentrate proteins and decrease the salt concentration in a hydrolyzed fermentation broth. The broth was a by-product from the bacterial production and extraction of polyhydroxyalkanoates (PHA), that can be used to produce biobased plastics. 3 ultrafiltration-membranes, RC70PP, GR70PP and ETNA10PP from Alfa Laval Corporate AB, were evaluated at varying cross-flow

This research is framed by the tension between human security and border security which pervades the debate on migration and asylum policies in the European Union. The perspective of three prominent NGOs in this discussion is studied in the present thesis. Its particular object of research are the migration camps on the Greek islands which were established following a series of EU decisions. The p

Purpose: The main purpose of this study is to enhance our understanding of branding communication with mass audiences using ordinary people in myth treatment. Methodology: This qualitative study explores the phenomenon of ordinary people portrayed as heroes in advertisements in an abductive manner. The research has been designed as a case study and the method for coding and analysing has been qua

En slitsmur är en geokonstruktion som utförs genom att paneler platsgjuts med marken som form. Panelerna bildar tillsammans en samverkande vägg. Tekniken är vanlig utomlands men fortfarande relativt ovanlig i Sverige. Behovet, och därmed intresset, av slitsmurar i Sverige växer dock i takt med förtätningen av städer och infrastrukturprojekt som kräver djup schaktning och anläggning. Kraven på låg A diaphragm wall is a retaining wall which is produced as a cast in-situ concrete wall. The ground itself acts as formwork. The technique is widely used internationally but it is comparably still a rare technique in Sweden. However, the need, and therefore interest in Sweden for diaphragm walls is growing as the number of inner city infrastructure projects requiring deep excavations increases. The

Purpose/Background Patients receiving whole brain radiotherapy (WBRT) today are treated with an immobilisation mask which fully covers their face and therefore might be experienced as uncomfortable and claustrophobic. In recent years, optical surface scanning (OSS) systems have been implemented for patient positioning and real-time motion monitoring [1]. OSS systems cannot track the patients surfa

Artros är en vanlig sjukdom som påverkar ett antal olika leder i kroppen. Den vanligaste av dessa är knäartros, som utgör omkring 85 % av alla atrosfall. Sjukdomen påverkar alla delar av leden, speciellt tydlig är effekten på ledbrosket som förtunnas och till slut bryts ner helt. Denna process kan leda till stora besvär, så som smärta och minskad rörlighet, men i nuläget finns mycket få behandlingBackground/purpose Quantitative susceptibility mapping (QSM) is an MRI-based post processing technique to evaluate the magnetic susceptibility, χ, of human tissue using phase data. While brain imaging has been the most common application, other areas have also raised interest. For example, QSM of the articular cartilage of the knee has been suggested as a means to study the degeneration of this ti

Av de 70 000 personerna som blev diagnoserade med cancer i Sverige 2021, fick runt 4000 lungcancer. Lungcancer är vanligen elakartade celler som utgår från lungans slemhinna. Behandling innefattar oftast operation eller strålterapi, ibland i kombination med cellgifter eller immunterapi. Inför strålbehandling gör patienten en röntgenundersökning som ger bilder i tre dimensioner, en så kallad datorPurpose: The purpose of this master thesis was to retrospectively investigate correlation between surface and tumour motion in lung cancer patients, alongside deep learning applications of the results. Additional correlations such as age, tumour volume and anatomical placement of the tumour were also investigated. Materials and Methods: 48 lung cancer patients treated with Stereotactic Body Radia

Stroke är när patienten får en blödning eller blodpropp i hjärnan som kan orsaka tal och rörelsebortfall, och i värsta fall en plötslig död. Åderförkalkning i halskärlen orsakar kring 10%−20% av alla stroke-fall. Den nuvarande metoden som används för att bedöma åderförkalkningen är att mäta förträngningen av blodkärlet i skiktröntgenbilder (3D-röntgenbilder). Förträngning av blodkärlet säger ingenIntroduction and aim Atherosclerotic stenosis located at the carotid bifurcation accounts for 10% − 20% of all Transient Ischemic Attacks (TIA) and ischemic strokes, which occurs when Atherosclerotic stenosis, or so-called plaque, ruptures. The current method to evaluate carotid atherosclerotic stenosis is to measure the degree of stenosis. Strong markers for plaque rupture lies in the plaque cont

Strålterapi är en vanligt förekommande behandling som ges till hälften av cancerpatienterna i landet. I fallet för prostatacancer, som utgör den vanligaste diagnosen, beror ofta cancerrelaterade dödsfall på återkomst av sjukdomen efter genomförd behandling. Vår hypotes är att detta kan minskas genom att identifiera strålrestistenta volymer i prostatan och öka stråldosen till dessa. Tyvärr finns deRadiotherapy is commonly used for cancer treatment, given to approximately half of all cancer patients in Sweden. Despite its widespread usage, there is currently no non-invasive and reliable imaging method that can identify regions of radiation resistance. These regions may be identified by hypoxia, given that radiobiological research has demonstrated a significant correlation between oxygen leve

Strålbehandling är en viktig behandling av cancer och det är avgörande att ge de föreskrivna stråldoserna exakt på rätt plats för att lyckas. Innan en patient behandlas verifieras strålbehandlingen genom kontrollmätningar. Dessa kontrollmätningar utförs med små detektorer som är placerade i ett fantom. Dessa mäter dosen endast i de punkter där de placeras. Stråldosen som ligger mellan dessa punkteBackground & Purpose: Radiation therapy is an essential treatment for cancer patients with the ultimate goal to deliver radiation doses to the tumour with precision while minimizing exposure to surrounding healthy tissues. Treatment verification is crucial to ensure the accuracy of radiation delivery, for instance by measuring the radiation dose distribution. Among various dosimetry techniques

Protection of humanitarian aid workers (HAWs) is a challenging task. There are various reports on the topic where much research seems to focus on traditional physical attacks and intentional violence against HAWs (security) rather than the accidental event risks (safety) or discussing it separately. These risks are usually defined by the organization’s security risk management holding the power in

The idea of orienting the design process towards the well-being of the patient is not something new in the world of architecture. That the form follows the function is usually but what must be taken into account is the dynamics of the process of understanding human needs. With each day that passes, complex changes of different kinds affect the human being and society as a whole in an unalterable t

Utforskning av flerkanalig intramuskulär elektromyografi (iEMG) för förbättrad protesstyrning Ingress: Med inspiration från hur hjärnan koordinerar muskler för att skapa rörelser, något som kallas muskelsynergier, utforskar detta examensarbete användningen av flerkanalig iEMG för att med större precision uppskatta isometriska krafter från handen Brödtext: Människans rörelser styrs av komplexa saThis Master's thesis in Biomedical Engineering investigates the performance and generalizability of linear regression models in context of prosthesis control for short residual limb amputees. This thesis uses intramuscular electromyography data, and a regression and emplys a regression technique called Elastic Net Regression - a technique that combines L1 and L2-regularization - to predict 1-D

The aim of this thesis is to study teachers’ perception of children’s ability to evacuate, thus learning about children’s evacuation behavior. Questions of interest are teachers’ perception of children’s ability to evacuate, their behavior, if there are any misconceptions in the teachers’ perception and how fire evacuation drills influence the teachers’ perceptions. This was done through a questio

Background: The Supreme Court’s Dobbs v. Jackson Women’s Health Organization ruling was monumental for sexual and reproductive health and rights in the United States. This shifted the legislative power over the right to an abortion from federal to state government. Missouri’s post- Roe legislation banned abortion statewide. Health care providers (HCPs) are facing unique facilitators and barriers t

Pneumonia is a common infectious disease of the lungs. When the lung tissue becomes inflamed, it can lead to symptoms such as cough, fever, and difficulty breathing. The most common cause of pneumonia is the bacterial species Streptococcus pneumoniae, also known as pneumococcus. This species is sometimes found in cultures from the nose or throat, without causing disease. If the immune system is we

The purpose of this paper has been to study whether or not the Swedish language has any significant impact on immigrant integration and their psychic well-being in Swedish society. By adhering to the theoretical framework of Diaz, Gordon, and Heckmann for integration, and Antonovsky’s theory of salutogenesis, we’ve established our results using qualitative semi-structured interviews to get our emp

Given the importance of copper prices to investors, governments, and policymakers, this paper investigates short-term price predictability using VAR and XGBoost models. All models are trained with historical data from November 2021 to December 2022 and using MSE, RMSE and MAE for evaluating the model performance. The results show that the XGBoost model outperforms VAR models, implying that machine

With Russia becoming increasingly hostile towards the West with the culmination of the full-scale invasion into Ukraine in February of 2022, the rhetoric of Putin has been linked to the philosophy of a geopolitically aggressive right-wing sociologist called Alexander Dugin. With several previous statements pertaining to the delegitimization of the sovereignty of Europe Dugin has previously argued