Filtyp
This thesis outlines the design and construction of an acoustophoretic trapping device with greatly increased capacity and throughput, compared to current commercial systems. In acoustic trapping, a strong, localised acoustic field is generated inside a channel. This field can capture and retain particles against a flow, allowing for nanoparticle purification and enrichment without the need for ul
The purpose of this thesis is to create an additional critique of academic publishing through the lens of black open access – illicit measures for access to academic documents. This is done primarily through the process of qualitative interviews with librarians and PhD-students active at two Swedish universites. The thesis also includes a minor statistical case study aiming to show the usage of th
The ubiquity of the concept of corporate social responsibility (CSR) allows for it to be carried across all spectrums of society and moulded to fit a variety of different norms and understandings. Despite the lack of a universal definition, the modern-day understanding of CSR is heavily based upon corporation’s environmental and sustainable development practices. However, it is continuously critic
Losses of highly qualified employees pose a major threat to the survival of knowledge-intensive organizations in a highly competitive market. Despite this, not enough research has focused on psychological factors that can affect whether employees with expert knowledge choose to stay within their organizations or leave for other job opportunities. The current study investigated the associations bet
I den aktuella studien undersöktes barns förmåga att med hjälp av verktyg använda tidigare kunskaper för att lösa en ny uppgift, genom en så kallad analog överföring. Uppgiften ställde krav barnets förmåga att bortse från vilseledande visuell information, till förmån för verktygets funktionalitet. 90 barn mellan 24 och 55 månader rekryterades från sju förskoleverksamheter i en svensk kommun. BarneChildren’s ability to access previous knowledge and use tools when solving a novel analogical task was examined. When confronted with the task, the children had to ignore misleading visual tool information and attend to its functionality. 90 children between 24 and 55 months from seven preschools were recruited. The study’s design was quasi-experimental and factorial, and the children were confron
Lärare möter under sin yrkeskarriär hundratals elever. Första intryck skapas snabbt och det gör även förväntningar på elever, även om de kan förändras. Tidigare forskning visar att lärares förväntningar påverkar elevers prestationer. Syftet med den här studien är att lyfta frågan om lärarförväntningar i svenska klassrum genom att undersöka fem sånglärares syn på sina egna förväntningar, faktorer sDuring a professional career, teachers meet hundreds of students. First impressions are quickly created and so are expectations, although they may change. Previous research claims that teacher expectations do have an impact on student performance. The aim of this study is to highlight the question of teacher expectations in Swedish classrooms. This is done by examining five singing teachers’ views
Purpose: The purpose of this work is to determine the abundances of neutron-capture elements in solar neighborhood giant stars. This enables constraints to be put on the the cosmic origin of these elements. I have determined abundances of elements produced in both the weak s-process (Cu), the first and second s-process peaks (Y, Zr and La, Ce, Pr, Nd, respectively) and the r-process (Eu, Gd). The
The Light Dark Matter Experiment (LDMX) is a fixed target experiment that will search for dark matter, but is still in the development phase. An important aspect for the experiment is the discrimination of signal and background events. Here this signal and background discrimination is inspected using a machine learning technique called a Boosted Decision Tree (BDT). This is done using Monte Carlo
This paper examines the effect of homework on student achievement using data from 57 countries that participated in PISA 2006. For that, we use a within-student identification strategy that allows us to account for most confounding influences at the country, school and student level. We find that homework has a positive and highly statistically significant effect on student test scores. The hetero
The purpose of this paper is to examine if foreign aid leads to a higher level of development when it is given to countries with higher levels of gender equality. The study examines the effects that foreign aid and gender equality have on development by assessing both their separate and interactive effects. I have used three different models, using two definitions of development and gender equalit
The European Union’s (EU) ‘market-oriented’ approach to renewable energy development risks undermining the ability of individual citizens to meaningfully contribute to, and benefit from, a decentralised, localised, and decarbonised energy system. In spite of the EU’s ambition to involve local communities for co-driving a low-carbon energy transition, there is no comprehensive analysis uncovering t
I Sverige drabbas ca 100 000 patienter av vårdskador varje år. Postoperativ sårinfektion är en vårdskada som medför lidande och omfattande kostnader för hälso- och sjukvården. Samtidigt råder det stor personal- och tidsbrist inom operationssjukvården. Syfte: Undersöka förekomst av bakterietillväxt på uppdukningsbord över totalt 12 timmar. Metod: En jämförande observationsstudie med kvantitativ an
In Germany, country of diesel bans and postponed climate goals, the region of Baden-Württemberg, as the heart of the country’s car industry, faces especial challenges. Due to its highly car-oriented transport system and topographical structure, the region is notorious for some of the country’s worst air quality levels. In response to these issues, the regional government formulated a cycling strat
By 2050, sixty percent of human population worldwide is going to live in cities. This will increase natural resource consumption to provide products and services in cities. Additionally, current policy making is done through a silo thinking mindset where unintended consequences can undermine natural resources availability. To overcome this problem, I propose to use the urban nexus approach as a st
Syftet med studien var att undersöka upplevelser av babyrytmik och vad som kan uppnås genom babyrytmik i en verksamhet tillhörande Svenska Kyrkan i Malmö. Litteraturkapitlet beskriver begreppet rytmik och dess bakgrund, babyrytmik, barns upplevelse av musik och rytmik, samt barns utveckling kopplad till musik och rytmik. Studien innehåller också en intervju med kyrkans rytmikpedagog samt en fokusg
The expansion of large-scale wind energy projects in the name of climate change mitigation has led to numerous social conflicts in Oaxaca. The Mexican government has put forward environmental policies that envision 35% of the national electricity to be generated by renewable sources in 2024. The urgency to achieve these climate change goals has been used to favor corporate projects that have been
We study orthogonal decompositions of complex special linear Lie algebras or, in other words, linear spaces consisting of complex matrices with zero trace. The conjugacy of the component subspaces give rise to change of basis matrices with a particular form that we, for the moment, call "nice". We prove a necessary and sufficient condition for this form, which allows us to characterize o
The presence of informal settlements in large cities of the developing world is a concrete expression of urban poverty. The residents of Brazilian favelas are more likely to be exposed to environmental risks, lower life quality and risks of eviction. Additionally, there is a common generalization of associating favela residents with illegality, criminality and pollution. Using a political ecology
This report reviews the fire safety of the thorax intensive care unit of Skåne University Hospital in Lund to validate the safety of persons in the ward during fire. By identifying 16 possible fire scenarios and ranking them by probability and consequence the three most complicated and probable scenarios were chosen – fire in a recycle bin, storage room, and unoccupied patient room. Through simula
