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With recent developments and advancements of technology in the 21st century, the copper industry faces challenges in lowering the lead content in copper alloy scraps due to stricter regulation for the usage of lead. Lead is added to brass and bronze to increase the machinability and to reduce wear. Lead is a significant concern to the environment, and it is categorized as a hazardous material. Lea
At the core of the sustainable solid waste management challenge lies increasing rates of consumption which contribute directly to problems of resource extraction and degradation. Recycling is a tool designed in part to address this problem of scarcity, however on its own it is not enough to solve the problem, particularly in relation to plastics, which are challenging to manage and often are not r
This study investigates the acoustic characteristics and cross-dialectal variation of the diphthongs /ai au oi ui/ in the Nuckö, Ormsö, and Rickul varieties of Estonian Swedish, which have previously only been described impressionistically (Lagman, 1979; Danell, 1905-34). Eight acoustic measures, reflecting the F1 and F2 frequency values at the first (InF1 and InF2) and second (FinF1 and FinF2) vo
Metod: Studien tog sin början i en genomgång av befintlig litteratur för att skapa en grundförståelse samt ett teoretiskt ramverk att utgå ifrån. Detta resulterade i en första version av ett teoretiskt ramverk som ligger till grund för datainsamlingen. Den vetenskapliga ansatsen för studien är således abduktiv. I syfte att förstå beslutsfattande bakom kvasi-standarder användes sensiterande kategorMethod: The study departs in a rigorous review of existing literature in order to create a broad understanding and ultimately a theoretical framework. This theoretical framework is the basis both for data collection and analysis of the empirical findings. The theoretical approach is hence mainly abductive. In order to understand the decision factors behind quasi-standards, sensitized categories we
This paper examines understandings of gender with an emphasis on masculinities among Bolivian feminist and women´s organizations. The specific aim has been to find out to what extent their understandings of gender include masculinities, and if so, what are their agendas and political positionings in relation to their work with men and boys. Finally, the study has examined what impact the feminist
Problem - Although experiential and social learning theory have contributed to our understanding of the entrepreneurial learning process, a major limitation is the focus on learning of the individual entrepreneur. As most start-ups work in teams, understanding the organizational learning process is important. Aim - The purpose of this study is to discover how start-ups learn by participating in an
The purpose of this study was to gain knowledge and insight into social service workers' experiences and opinions about the Swedish law on compulsory care of minors. The study also aimed to illustrate how social workers describe their work with the legislation and their role in it. We conducted six qualitative semi-structured interviews with social workers who had the experience in compulsory
Kombucha, a traditional fermented tea beverage, is gaining popularity for its health benefits due to its bioactive compounds, especially glucuronic acid, known for detoxifying and hepatoprotective properties. Despite its significance, factors influencing glucuronic acid levels are not well understood. This study investigated the impact of initial sugar concentrations (4%, 6%, 8%) and tea types (bl
Air pollution is a major environmental and health problem globally, with traffic emissions being a significant source of many pollutants. The aim of this study is to investigate whether the levels of nitrogen dioxide (NO2), ground-level ozone (O3) and coarse particles (PM10) in air changed during the covid-19 pandemic in Sweden, and whether the change varied between urban and rural areas and depen
The start-up company LEVTEK is launching a new ultralight electric utility vehicle called the LEVKART. The Levkart uses a combination of robotics and AI-technology to offer semi-autonomous or autonomous riding and usage. The purpose of the vehicle is to serve as an alternative to cargo bikes and electric scooters designed for easy usage and as a more sustainable option to fossil-based transport. T
This thesis concerns the creation of Majorana bound states (MBSs) -- a type of condensed matter excitations theorized to have exotic and technologically valuable properties. In particular, they could be used to store and manipulate quantum information in a protected way, forming the building blocks of a topological quantum computer. The search for MBSs has been intense since it was realized that t
Det här examensarbetet innefattar framtagningen av ett verktyg som hjälper produktutvecklare designa ergonomiska produkter. Många produkter som idag når tillverkning, eller till och med marknaden, är inte alltid så ergonomiska som det hade kunnat önskas. Emellertid kan dessa problem förebyggas i ett tidigt skede genom väl genomtänkt utformning på produkter och adekvata ergonomiska utvärderingar. DThis master thesis consists of the development of a tool which helps product developers design ergonomic products. Many products which end up being manufactured, or end up on the market, are not as well thought out as one could wish. However, this problem can be prevented at an early stage by well thought out designs and adequate evaluations. This was a topic discussed with Avalon Innovation Techn
An important factor in preventing food waste is the ability to provide a product with a package according to its needs. The packaging material, in turn, needs to be recyclable in order to contribute to a circular use of materials rather than becoming waste. The aim of this thesis is to examine the difference between the current and future packaging material of coffee produced by Zoégas. The curren
A shortage of pediatric heart surgeons across the world limits the available surgical interventions, leading to long wait times and higher risk of mortality. The use of robotic surgery and its advantages may help address this issue, and the Collaborative Articial Intelligence Sur- gical Assistance-project is a starting point to develop an autonomous robotic surgical assistant. However, the video f
Organic contaminants are present in aquatic environments and there is a need for water treatment techniques that are both efficient and practically implementable. Antibiotics are particularly problematic organic contaminants, as insufficient removal can contribute to the spread of antibiotic resistance, which can affect essential bacteria for ecosystems and cause untreatable infections in humans.
Förenta nationernas konvention om barns rättigheter gäller sedan 1 januari 2020 som lag i Sverige. Strax därefter inleds något som kallats ”LVU-kampanjen” och övriga aktörer som demonstrerar mot socialnämndens beslut om tvångsvård av barn har på senare tid också fått stor uppmärksamhet. Jag funderar därför på om inkorporeringen av barnkonventionen har påverkat lag (1990:52) med särskilda bestämmelThe United Nations Convention on the Rights of the Child (CRC) has been in force as law since 1 January 2020 in Sweden. Soon after, something called the "LVU-campaign" was launched, and other actors who demonstrate against the social welfare board's decision on forced care of children have recently also received a lot of attention. I am therefore curious about whether the incorporati
The telecom industry falls among one of the most progressive markets that operates at the level of advanced technologies and has the fastest rate of growth all over the world, including from the perspective of 5G technology, the integration of digital products, and the constant increase in demand for broadband internet. In such a competitive environment, customer attrition has been known to be a m
As the amount of high dimensional data becomes increasingly accessible and common, the need for reliable methods to combat problems such as overfitting and multicollinearity increases. Models need to be able to manage large data sets where predictor variables often outnumber the amount of observations. In this study the frequentist and Bayesian framework is tested against each other based on three
Cultural institutions such as museums and art galleries are important agents in educating the broader public on matters where current awareness is missing, inadequate or inaccurate. In this study, I focus on one such matter, which is the knowledge regarding ethnic minorities, their history, traditions, and current challenges. My primary focus is on how cultural institutions utilise their exhibitio
The study aimed to explore users' experiences of behavioral activation therapy (BAT) in the context of cognitive behavioral therapy (CBT). Behavioral activation therapy is a therapeutic approach that emphasizes engaging in meaningful activities to counteract depression and improve overall well-being. The study was conducted through semi-structured interviews with eight participants aged betwee
