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Weaponry and color badges are commonly theorized to function as visual signals of aggressiveness or fighting ability. However, few studies have supported a signaling function of weaponry, and the role of color in invertebrate competitive interactions remains virtually unexplored. Jumping spiders (Salticidae) make excellent invertebrate models for studying weaponry and color because males of many s
Denna rapport identifierar och analyserar investeringsmöjligheter samt produktionsoperationella förändringar i produktionen av hålpipor. Studien avser en ledande svensk tillverkare i branschen och påbörjas med en analys av företaget självt samt dess kunder. Därefter undersöks förtegets nuvarande produktionsförmåga, varvid investeringsmöjligheter identifieras och analyseras. Slutligen diskuteras ocThis report identifies and investigates possible investment alternatives and operational improvements to the production of perforating punches. The analysis is conducted for a leading Swedish manufacturer in the industry. First, an analysis of the company and its customers is performed, followed by a study of the current production capabilities. Based on this investigation, key investments opportu
In 2023, the Swedish state-owned enterprise LKAB revealed that it had found Europe’s largest deposit of critical minerals, which are needed in green technology. Being located on indigenous territory, a mine would impact the migration of reindeers, a Sami practice which form the basis of their culture and status as indigenous peoples under international law. This prompted questions about what respo
Wound healing is a process that ensures regeneration and repair of damaged tissue. This process can be interrupted, leading to chronic wounds, and one of the factors that can interrupt it is infection. The bacterium Pseudomonas aeruginosa is prevalent in chronic wounds, and as it is antibiotic resistant it makes chronic wounds infected with this pathogen a challenging clinical problem. For a bette
The Circular economy (CE) is an economic system created as an alternative to the unsustainable linear economy. CE and its business models aims to deal with the challenges as resource depletion, waste creation and over consumption by closing the material loop. CE is today practiced using different business models. One such business model is remanufacturing. A business model that has gained a lot of
The telecommunication industry contributes to environmental impacts through energy usage and material resource use. The incorporation of Circular Economy strategies has the potential to restructure and re-engineer systems like those in the telecommunication industry to capture more value for the business while decreasing environmental impacts of business. The objective of the research in this pape
Presterar barn som blivit ammade bättre inom utbildning och arbetsmarknad som ungdomar och vuxna? Investeringar i insatser som främjar och stödjer amning kan leda till mer humankapital på lång sikt. Amning har många hälsorelaterade fördelar för både mamma och barn, trots detta byts bröstmjölk allt för ofta ut mot modersmjölksersättning. Denna studie jämför långsiktiga prestationer inom utbildning Does being breastfed as a baby lead to better achievements in education and on the labour market as an adolescent and adult? Investing money on interventions promoting and sustaining breastfeeding might lead to more human capital and be an economic gain in the long-run. Breastfeeding has many health-related benefits for both mother and child, nevertheless breast milk all too often gets substituted
For a long time, the construction and building industries have focused on increasing the efficiency of the built environment and reducing the emissions during the operations of buildings. As a consequence of the decreased operational emissions, the share of so-called embodied and upfront carbon has increased. In the life cycle of a building, the upfront carbon is associated with the emissions from
This MSc Thesis’s main objective is to determine the impact of transformer inrush currents in the grid and develop a tool that helps E.ON Energidistribution AB evaluate transformer sizing. The motivation of E.ON is to have a more precise way to estimate the energization consequences of increasing the transformer size in the grid, since currently is being used a rule of thumb that relates the trans
As cloud service providers becomes more prevalent, so does questions related to cost efficiency of hosted resources. Payment models for cloud hosted resources tend to be either subscription based or pay-as-you-go for computing resources, in this case for compound metrics of CPU, Data IO and Log IO. In order to find necessary resource provisioning, previous methods have tended towards observing the
COVID-19 was declared a world-wide pandemic in 2020, consequently affecting societies all around the globe. This thesis investigates one of these effects, namely how the pandemic affected occupant loads in office buildings and its subsequent effect on fire evacuation. Occupant load is one of many important factors when designing a building in regard to its fire safety, as it is a key component in
Quantitative PCR (qPCR) is a commonly used method today in the fields of molecular diagnostics, forensic and food analysis. The real-time measurements of amplification and quantification of specific DNA molecules is one of many reasons why qPCR is the method of choice. However, presence of inhibitory compounds limit this method for example by interacting with either the DNA polymerase or the DNA t
Purpose: Anti-consumerism and sustainable fashion are two vital concepts that are prominent in society today, but have not been analyzed in terms of if they are a part of creating this brand resonance. A new framework, the Sustainable Brand Stewardship Model, is introduced to determine if a sustainable brand is able to sustain long-term competitive advantages through enhancing brand resonance. Met
Natural events that happen more rarely have historically been more difficult to study and continue to require different methods. For example, rare occurrences of natural disasters and weather events can have return periods of thousands of years but because of their large impact are very important to study. In addition to being used to study the changing climate, climate models have the advantage o
A study on the online process of producing idioms in writing and how second language learners manage the production and comprehension of idioms may provide a useful and comprehensive investigation of the production, comprehension and acquisition of language. The study in this paper investigated how Swedish (L1) second language learners of English (L2) produce and comprehend written idioms in the L
This MSc thesis covers the development of a Modelica model of an engine liquid cooling system for the trucks manufactured by MAN Truck & Bus AG. The mathematical assumptions used for transcribing existing models are described and the reasoning behind the modeling process is provided. The separate component models are validated with two sets of input signals. Primarily with a dynamic, transien
Abstract (1) Carbohydrates are a class of biomolecules that play important roles within the cellular biochemistry. Functionalized carbohydrates are building blocks in our DNA in addition to being major components of the cell’s signaling molecules called proteoglycans and glycosaminoglycans. Certain carbohydrates with aromatic side chains have been shown to inhibit the biosynthesis of these signali
Pathogenic bacteria such as Streptococcus pyogenes have evolved different mechanisms to evade host immune defenses, primarily through the expression of virulence factors. Among these, the Streptococcal nuclease A (SpnA), a cell wall-associated protein, is important in bacterial pathogenesis. SpnA hydrolyzes host DNA present within neutrophil extracellular traps (NETs), therefore helping bacteria t
