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Detta examensarbete har utförts i syfte att jämföra hur fyra olika databashanterare (DBMS) presterar inom ett begränsat antal områden för att därigenom dra slutsatser kring vilken som fungerar bäst för att lagra data om rabatter på IKEA. De databashanterare som testas är MongoDB, MariaDB, Neo4j och PostgreSQL. För att åstadkomma en jämförelse utfördes en form av testning - en benchmark. BenchmarkeThis thesis has been conducted in order to compare how four different database management systems (DBMSs) perform in a limited number of areas, in order to draw conclusions about which one works best for storing discount data at IKEA. The DBMSs being evaluated are MongoDB, MariaDB, Neo4j and PostgreSQL. To enable a comparison, a form of testing was performed - a benchmark. The benchmarking consist

The purpose of this thesis is to examine if female-led countries fared the Covid-19 pandemic differently from male-led countries. To do so, I rely on a pooled OLS regression model, using data from 189 countries between January 2020 to March 2022. My results show that countries with female leaders have significantly fewer cases and deaths of Covid-19 than countries with male leaders. This is found

Contactless fluid surface velocity measurements with radar technology presents novel ways of determining fluid flow. The Acconeer A121 sensor is used, which is a pulsed coherent 60 GHz millimeter-wave radar, with high accuracy and low energy consumption. Fluid flow data is obtained from three different sites; in the Acconeer lab, a lab in the UK, and in three sewage pipes of VA SYD. Initially, dat

This research carried out an assessment on the socioeconomic factors related to the use of violence (psychological aggression and physical assault) against children within the family context, and the extent to which childrearing patterns can be transmitted across generations. The sample under study consisted of 13,205 observations from mothers in all regions of Peru and their children aged 1 to 5

The aim of this thesis was to deepen the understanding of brand activism by looking into existing and novel dimensions on which consumers base their validation and opinion of brands engaging in socio-political discourse. This dissertation followed a dual-analysis approach in which both qualitative and quantitative research was conducted. This study drew on socio-political activism theories, consum

Forests form the backbone of the European terrestrial carbon sink (State Forest Service & Ministry of Environment, 2018). As the European Union (EU) strives to become climate neutral by 2050, forests are accounted for the natural carbon absorption mechanism (European Commission, n.d.). Currently, the European net land carbon sink is decreasing largely due to forest ageing (Pilli et al., 2022),

With the large expansion of renewable energy sources such as wind- and solar, the stability and quality of electrical power can be affected. The transition towards large-scale wind power offers many opportunities to maintain stability by using power converters to create synthetic inertia. At request of Sweco Energy, this thesis shows the effect and importance of synthetic inertia used in wind powe

In the past years, Sweden had been facing rapid growth of photovoltaic cells and total PV installation capacity increased from 300 kW to 1090 MW (2006-2020). To increase the number of PV users and therefore assist in achieving multiple sustainable goals regarding renewable energy, the installations of such systems were actively supported by the Swedish government. This project is aimed at evaluati

Norge behöver utöka sin elproduktion för att möta ett framtida ökat elbehov. Vattenkraften i Norge uppskattas endast ha 23 TWh kapacitet kvar att bygga ut och vindkraft har mött starkt motstånd på senare tid. Solkraft finns fortfarande bara på liten skala i landet men uppskattas öka kraftigt i närtid. Solkraft installeras hela tiden längre norrut men än finns ingen storskalig solkraft i norra NorgNorway needs to increase its power production to meet the future increase in electricity use. Hydro power is estimated to only have 23 TWh of additional available capacity and wind power has met strong resistance lately. Solar power is still only implemented on small scale in Norway but is predicted to increase rapidly in the near future. It is steadily being implemented further north, however the

Examensarbetets titel: Borta Bra men Hemma Bäst?: En kvalitativ flerfallsstudie om hur svenska startups väljer produktionsplats Seminariedatum: 3 juni, 2022 Ämne/kurs: FEKH99, Examensarbete i Entreprenörskap och Innovation, 15 högskolepoäng Författare: Elias Alhar, Karl-Oscar Giertz och Måns Wirfelt Handledare: Joakim Winborg Nyckelord: Entreprenöriellt beslutsfattande; Supply chain management; LäTitle: There’s No Place Like Home?: A qualitative multiple-case study about how Swedish startups choose location of production Seminar date: June 3rd, 2022 Course: FEKH99, Bachelor Degree Project in Entrepreneurship and Innovation Management, Business administration, Undergraduate level, 15 University Credit Points Authors: Elias Alhar, Karl-Oscar Giertz och Måns Wirfelt Advisor: Joakim Winborg Ke

In recent years cars are becoming more and more connected and it has become commonplace to connect one’s phone to the car interface, allowing streaming of music, making calls and sending messages. The primary technology used for connection is Bluetooth, a short-ranged wireless communication technology that has been around since 1999 and improved and expanded upon ever since. It is of vital importa

The number of irregular migrants increased in Turkey, especially after the EU-Turkey Joint Action Plan of 2016. This study examines the situation of undocumented Syrian migrants in terms of their capabilities and approaches to the well-being of this particular group from the normative framework of the capability approach with a specific focus on material conditions. Building on the Capability Appr

The iron-chromium (Fe/Cr) catalyst is used for high-temperature water-gas shift (HT WGS) reaction. A major concern using the Fe/Cr catalyst is that it contains hexavalent chromium (Cr+6) which is a potent carcinogen causing health and environmental issues. In order to reduce the usage of chromium in industrial HT WGS applications, a chromium-free catalyst needs to be developed. The aim of this theAs energy demand increases worldwide, the interest in hydrogen has increased as well. Hydrogen is an excellent energy source and an essential component in large industries such as oil refineries, ammonia production plants and methanol synthesis plants. To produce hydrogen, steam methane reforming process is used where methane (CH4) and steam (H2O) is converted to carbon monoxide (CO) and hydrogen

Kan man kombinera Magnetisk Resonanstomografi, mer k ̈ant som MRI, Magnetic Resonance Imaging, med geometrioptimering av fl ̈odessimuleringar f ̈or att f ̊a fram mer detaljrika bilder av blodfl ̈odet? I denna studiehar vi arbetat med att vidareutveckla ett verktyg f ̈or att ̈oka uppl ̈osningen p ̊a tredimensionella bilder av blodk ̈arl i kroppen. Ett syfte med den h ̈ar tekniken ̈ar att ge l ̈akar4D-flow is a powerful tool capable of capturing 3-dimensional, time-resolved flow measurements of blood flow in the body. Their current use is limited by resolution and scan times. A proposed solution is to use Simulation Based Imaging (SBI). This combines lower resolution 4D-flow scans with CFD simulations to improve resolution and reduce scan times. Previous work has focused on inlet and outlet

Nationer och aktörer världen över har satt upp klimatmål och strategier för att minska på sina utsläpp av växthusgaser i kampen för att uppnå 1,5 gradersmålet i tid. Norconsult som är ett konsultföretag verksamma inom samhällsplanering och samhällsbyggnad är ett av många företag som satt upp interna mål om utsläppsreduktion för att minska på verksamhetens egen klimatpåverkan. Norconsult hoppas på Global authorities and businesses around the world have come up with a joint climate goal, including strategies to reduce greenhouse gas emissions in an effort to fight and reach the “1.5 degrees” goal in time. Norconsult, which is a consulting company that operates within social planning, and infrastructural design, is one of many modern companies that have initiated their own internal climate go

Att använda sig av så kallad GPS-baserad probedata i syftet av att validera trafikmodeller är en relativt ny och oprövad metod. Insamling av GPS-baserad probedata sker genom att fordon registrerar sin lokalisering vid flera punkter utmed sin resa. Metoden har potentialen att effektivisera och förbättra arbetet med att producera verklighetsförankrade och pålitliga trafikmodeller. Men för att nå ditIn traffic assignment, one of the key elements is the validation process. The validation allows the traffic planner to get an understanding of whether the model is working according to reality-based metrics, or if it must be improved. There are several different ways of collecting reality-based metrics, one these methods are called GPS probe data. Through this study, a survey as well as a case stu

Bakgrund: En lindrande åtgärd för patienter som drabbats av artros är höftprotesoperation. En höftprotesoperation är inte riskfri utan flera komplikationer kan uppstå för patienten och några av dessa är infektion och djup ventrombos (DVT). Förebyggande åtgärder mot infektioner efter höftprotesoperation är antibiotika vilket det finns klara direktiv för. I förebyggande mot DVT efter höftprotesoBackground: A hip replacement surgery is a major surgery with several complications that can occur to the patient such as infection and deep vein thrombosis (DVT). Preventive measures against infections after hip replacement surgery are antibiotics for which there are clear directives. In prevention against DVT after hip replacement surgery, thrombosis prophylaxis is given. Thrombosis prophyla

Proteins and peptides are widely used for the prevention, management, and cure of various illnesses. This vast therapeutic potential represents a significant portion of the pharmaceutical industry in the form of vaccines, antibodies, enzymes, and other protein-based therapeutics. During the drug development process, these proteins/peptides are affected by various environmental factors such as temp

15% of all five year olds and 5-10% of all 7 year olds struggle with bedwetting, a condition medically known as enuresis. Current treatment methods rely primarily on the family to carry out an 8 week treatment. In order to involve healthcare providers in the process and create an opportunity for individualized treatments, Pjama AB has developed an enuresis alarm system. This system directly shares

Färskvatten av god kvalitet och kvantitet är avgörande för mänsklig överlevnad och livskvalitet. För att ta vara på befintliga vattenresurser vid vattenbrist kan renat avloppsvatten återanvändas. Simrishamns kommun i östra Skåne upplever redan idag vattenbrist och återanvändning av vatten genom konstgjord infiltration övervägs därför. Syftet med det här arbetet är att klargöra den kemiska kvalitetSufficient quantity and quality of fresh water is crucial for human survival and quality of life. Water resources in water scarce areas can be efficiently managed by water reuse. In the Swedish municipality of Simrishamn, water scarcity is already a fact. Therefore, indirect water reuse by artificial infiltration is considered. The aim of this project is to examine the chemical quality and thereby