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In a world where the problem of energy resources, pollution and all aspects related to these issues becomes more and more dominant, a greater commitment is needed in the search for solutions. The goal of this project is to make a contribution to the research and development of new materials to reduce the environmental impact in some fields. First of all, we tried to synthesize and prepare an isati
With the evolving technology of mobile electronics and other forms of communication methods, an increasing demand of speech intelligibility is introduced. In a conference room for example, multiple microphones are placed directly in front of the speaker in order to pick up clean speech. However, several challenges still exist. For instance the distance between speaker and microphone will not be fi
Digital educational games have been around for a long time and have shown to be pedagogically valuable. Unfortunately most games do not utilize technology to the extent that is possible. Not the least this applies to mathematical educational games for younger children. This work aims to combine several educational scientific approaches using current technologies, which traditionally had been very
With innovation taking centre stage in the global quest for economic development in recent years, Sweden’s southernmost county of Skåne has set out to become Europe’s most innovative region by 2020. Supporting and developing youth’s innovative capacity is viewed as one of the several ways to achieve this goal. This thesis looks at the relationship between youth innovation and spaces where it is en
Roten till cancer? Cancer är en ledande orsak till en stor mängd dödsfall i världen och därför en fruktad sjukdom. Forskningen gör dock framsteg och man kommer allt närmre svaren på gåtorna. På senare år har det föreslagits att en speciell typ av celler, cancerstamceller, är drivande och ligger bakom flera av cancersjukdomarnas egenskaper. Alla organismer är uppbyggda av celler, den stora majoriIn recent years increasing evidence supporting the stem cell hypothesis have emerged and cancer stem cells (CSCs) have been reported to have been isolated in a wide variety of cancers. This CSC population has been attributed to contribute to the therapeutic resistance of many cancers and it is thus of great interest to find new therapeutic options targeting these cells. In ileal carcinoids however
This study assesses the impacts of the floods in early 2011 in the Northern Cape Province in South Africa and focuses especially on the small town Keimoes located on the major Orange River. During this period 33 municipalities in 7 out of the country’s 8 provinces were declared as disaster areas due to widespread flooding. In Keimoes and the Northern Cape Province the flood impacts were widespread
This thesis is based on the two months I spent in Bolivia doing applied cultural analysis for a nongovernmental organization (ECAM) that works for women empowerment and gender equality. My intention is to explore the relationship between academia and activism by focusing on the approaches that have been pointed out as counterproductive in the struggle for gender equality. Specifically, the objecti
Popular Abstract in Swedish Internationella diabetesförbundet räknar med att en tiondel av världens befolkning kommer att ha någon form av diabetes om 50 år. Diabetes är en sjukdom med global spridning som innebär att kroppen inte kan ta hand om all den näring man intar, framförallt inte sockret. Detta medför att sockerhalten i blodet höjs. Insulin produceras efter en måltid och signalerar till krIslet hormone secretion is tightly regulated by metabolic status as well as local and circulating factors. These factors can activate different receptors on the pancreatic islet cells, for instance G-protein coupled receptors (GPCRs). When activated, these receptors are able to fine-tune islet hormone secretion and regulate overall β-cell function. Estrogen and serotonin are circulating factors
The three-year research project funded by MSB applies design science, in combination with traditional scientific investigation, to develop a method to guide the planning phase of capacity development projects for disaster risk reduction and climate change adaptation. The method facilitates local participation and ownership as it builds on the strengths of the Logical Framework Approach (LFA), whil
We present the design of a split-and-delay unit for the production of two delayed replicas of an incident extreme ultraviolet (XUV) pulse. The device features a single grazing incidence reflection in combination with attenuation of remaining infrared light co-propagating with the XUV beam, offering a high throughput without the need of introducing additional optics that would further decrease the
Objective:To compare the diagnostic accuracy of CSF biomarkers and amyloid PET for diagnosing early-stage Alzheimer disease (AD).Methods:From the prospective, longitudinal BioFINDER study, we included 122 healthy elderly and 34 patients with mild cognitive impairment who developed AD dementia within 3 years (MCI-AD). -Amyloid (A) deposition in 9 brain regions was examined with [F-18]-flutemetamol
Photodynamic therapy (PDT) is one of the most interesting methods of photo treatment. In general, PDT is a modality for the treatment of non-muscle invasive tumors. PDT is very well suited in managing bladder cancer, as the bladder is accessible by endoscopy and the tumors are most often limited to the mucosa or sub-mucosa. PDT is likely more useful for patients with recurrent tumors after convent
Purpose The aim of this paper is to explore key challenges of adopting, designing and managing performance-based contracts (PBC) for advanced logistics services, as seen by providers. The shift towards performance-based solutions has proved challenging since providers often struggle to link performance to their payment. Despite such managerial challenges, empirical research in this area has been l
Comparisons have revealed large discrepancies among the many methods for measuring soil CO2 efflux indicating the need for an absolute calibration of methods. This study presents a calibration system, constructed to imitate an area of soil, and its application to two different chamber systems for the measurement Of Soil CO2 efflux: one open and one closed dynamic. Air rich in CO2 was allowed to di
Under seeing limited conditions very high resolution spectroscopy becomes very difficult for extremely large telescopes (ELTs). Using adaptive optics (AO) the stellar image size decreases proportional with the telescope diameter. This makes the spectrograph optics and hence its resolution independent of the telescope diameter. However AO for use with ELTs at visible wavelengths require deformable
We tested the hypothesis that populations in small habitat fragments remaining in agricultural landscapes are maintained by repeated immigration, using three grassland butterflies (Aphantopus hyperantus, Coenonympha pamphilus and Maniola jurtina). Transect counts in 12 matched sets of semi-natural pastures, and linear habitat elements proximate and isolated from the pastures showed that population
Profilins are small, widely expressed actin binding proteins, thought to be key regulators of actin dynamics in living cells. So far, three profilin-genes have been described: profilin-I (PFN1), profilin-II (PFN2) with two splice variants and the recently identified profilin-III (PFN3). Here we describe the genomic organization of the genes encoding human and mouse profilin-III. Both are single ex
