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To examine nanoparticle toxicity there is a need to produce defined nanoparticles dispersed in a colloidal suspension. Such a solution could also be interesting for other fields such as nano-medicine. In order to disperse the particles in the liquid there are often surfactant added to the process that alternates the surface of the particles. As the research shows that the surface of a nanoparticle
In the event of a nuclear weapon detonation or a power plant accident radionuclides will deposit on the ground. It is then important to identify and quantify the radionuclides to obtain information necessary for radiation protection efforts like relocation and decontamination. Radiation protection instruments with beta probes can be used as search instruments but the small surface of the probe an
Objective: To implement artificial neural network (ANN) algorithms for noninvasive lymph node staging (NILS) to a decision support tool and facilitate the option to omit surgical axillary staging in breast cancer patients with low-risk of nodal metastasis. Methods: The NILS tool is a further development of an ANN prototype for the prediction of nodal status. Training and internal validation of the
Fusobacterium necrophorum is the main causative agent of Lemierre’s syndrome, where the bacteria, following a benign initial oropharyngeal infection, cause septic thrombophlebitis of the internal jugular vein with subsequent pulmonary embolisation. Despite that data are lacking to suggest so, F. necrophorum has been described as normal tonsillar flora for decades. We investigated tonsillar carriag
The complexity of human tibiofemoral joint motion is now better understood with the advancement of new methodologies to measure tibiofemoral kinematics in vivo. Marker clusters anchored to stainless steel bone pins inserted directly into the femur and tibia provide the most sensitive and accurate means for directly measuring skeletal tibiofemoral joint motion. Despite its invasiveness, this techni
Context. Multiplanet systems are excellent laboratories to test planet formation models as all planets are formed under the same initial conditions. In this context, systems transiting bright stars can play a key role, since planetary masses, radii, and bulk densities can be measured. Aims. GJ 9827 (K2-135) has recently been found to host a tightly packed system consisting of three transiting smal
Processing myoelectrical activity in the forearm has for long been considered a promising framework to allow transradial amputees to control motorized prostheses. In spite of expectations, contemporary muscle-computer interfaces built for this purpose typically fail to satisfy one or more important desiderata, such as accuracy, robustness, and/or naturalness of control, in part due to difficulties
The built environment is important to achieve a sustainable society. From a sustainability perspective, refurbishment can be preferable to building anew. A significant proportion of the built environment needs to be refurbished. Refurbishment projects also provide the opportunity to proactively upgrade the working environment for users during operation and use.Research concerning the working envir
Popular Abstract in Swedish Antalet människor som insjuknar i cancer (cancerincidensen) runtom i världen ökar, exempelvis i Sverige har antalet diagnosticerade tumörer ökat med i snitt 2.1% per år de senaste 20 åren. Denna ökning förklaras bland annat av vår ökade livslängd och vårt val av livsstil. Trots detta har antalet människor som dör i cancer minskat de senaste 20 åren. Dessa motsägelsefullThe continual increase in incidence of cancer has created an urgent need for improved methods for diagnosis, prognosis and/or treatment. In this context, the field of biomarker research has expanded immensely during the last few years. This thesis, based on four original papers, revolves around protein biomarker discovery in cancer. For this purpose, an in-house design recombinant antibody microar
Context. The search for small exoplanets around solar-type stars is limited by stellar physical variability, such as a jittering in the apparent photospheric radial velocity. While chromospheric variability has been aptly studied, challenges remain for the observation, modeling. and understanding the much smaller fluctuations in photospheric spectral line strengths, shapes, and shifts. Aims. Extre
The human gastrointestinal tract (GIT) is home to a large community of microorganisms that contribute to human health. Delivering live bacteria to the gut for therapeutic purposes can thus be highly beneficial. However, delivering live biotherapeutic products or probiotic bacteria to the GIT presents challenges because the cells must remain viable during production, storage, and administration. En
Tubes fabricated from dilute Zr-alloys serve as miniature pressure vessels in Pressurized Heavy Water Reactors and are subjected to stress, aqueous corrosion and intense irradiation during service. Hydrogen evolved during the corrosion reaction may enter into the material and precipitate as hydride phase, which acquire platelet shaped morphology in Zr-alloys and are known to embrittle the host mat
This thesis concerns students’ learning and meaning-making in science. The theoretical framework builds upon Human Constructivism. This perspective underlines the unique interplay that occurs between thinking, feeling, and acting in human meaning-making and also stresses the important role of language in learning proc-esses. The aim of the thesis is to learn more about how individual students deve
Barnäktenskap är ett fenomen som är vanligt förekommande i stora delar av världen. År 2004 infördes lagbestämmelser om att utländska barnäktenskap inte ska erkännas i Sverige om minst en av parterna haft anknytning till Sverige. För att stärka skyddet mot barnäktenskap skärptes lagen ytterligare år 2014. Under år 2018 lade regeringen fram ett förslag till ny lag om att förbjuda erkännandet av utläChild marriage is a phenomenon existing in many parts of the world. In 2004 a new law came into force stating that Sweden does not recognize foreign child marriages if at least one of the parts has ties to Sweden. In order to achieve an increased protection against child marriage the legislation was further strengthened in 2014. In 2018 the Swedish government presented a proposition to a new law f
The winter of 2020 was dominated by Canadian and international news coverage about a group of indigenous land defenders in Northern British Columbia, Canada. At the centre of the media frenzy was a pipeline conflict involving an indigenous community, namely, the Wet’suwet’en Nation, and Canada’s largest private sector investment ever which is set to cross directly through Wet’suwet’en territory. T
The purpose of this practical theological master’s thesis is to examine conversation as part of sermon preparation in present day preaching in the Lutheran Church of Sweden. This study combines studies of homiletical literature with qualitative empirical methods, stating that theory and practice informs one another. Through participant observation in Bible study groups and the following Sunday’s s
