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Aim: To establish the current level of knowledge of the effect of drinking cessation on the risk of developing oesophageal cancer. Method: A meta-analysis was conducted based on relevant studies identified through a systematic literature review. A Generalised Least Squares model for trend estimation of summarised dose-response data were utilised in order to estimate the effect of years since drink
Exposure to arsenic (As), cadmium (Cd) and lead (Pb) may generate oxidative stress, which can be assessed by 8-oxo-7,8-dihydro-2'-deoxyguanosine (8-oxodG) in urine, a sensitive marker of oxidatively damaged DNA. We have evaluated oxidative stress induced by mixed chronic exposure to As, Cd, Pb, as well as the influence of As metabolism and nutritional status, i.e. ferritin (Ft), selenium (Se), zin
Background: A central theme in media psychology is how certain contemporary and dominant views may tend to perpetuate themselves by presenting a recurring picture we humans use to form our knowledge about the world. The present study is based on 1.5 million words from articles published online in the Swedish daily newspapers in 2010. We investigated which words were most (un-)common in articles co
BACKGROUND: Vasoactive intestinal peptide (VIP) and pituitary adenylate cyclase activating peptide (PACAP)-containing nerves surround cerebral blood vessels. The peptides have potent vasodilator properties via smooth muscle cell receptors and activation of adenylate cyclase. The purpose of this study was to describe the effects of two putative VIP/PACAP receptor antagonists and the distribution of
Objectives: To describe the findings of cardiovascular magnetic resonance (CMR) imaging in patients with pulmonary arterial hypertension (PAH) associated with connective tissue disease (CTD) and in consecutive patients with systemic sclerosis (SSc) without PAH. Methods: The study comprised nine consecutive patients who were admitted for right heart catheterization (RHC) under a suspicion of CTD-PA
This master thesis investigates material characterization by reflection and transmission of electromagnetic waves in the 40-60 GHz band (millimeter-wave spectrum) for different materials. The free-space measurement method is a fast, efficient and non-destructive way of examining a material and is being researched by both academics and industries. The theory of how electromagnetic waves interact w
A novel method for the fabrication of a light-weight solid oxide fuel cell (SOFC) has been evaluated at Catator. This was conducted in order to lower the weight and thus cost of an unmanned aerial vehicle. The main aim for this thesis was to achieve a thin, dense and crack-free electrolyte using a ceramic fibre paper as substrate. This paper was impregnated with colloidal solutions and pressed to
Abstract The purpose of this thesis is to examine whether uncertainty avoidance or risk intolerance has influence on entrepreneurship among Lithuanians. This paper aims to looks into the cultural dimensions according to a Dutch researcher, Geert Hofstede who rated Lithuania an index score of 65, and a study by a Lithuanian professor Huettinger (2008) who rated Lithuania a score of 59, whereby 100
As a part of a French-Swedish collaboration project to reconstruct middle to northern European climate variations during the Holocene, a sediment sequence from Lake Storsjön, Jämtland was retrieved and analysed for geochemical and palaeomagnetic properties. The subsampled sequence, composed of one freeze core and three Niederreiter piston cores, revealed information of both climatic, environmental
Crystallization of amorphous lactose during storage at high relative humidity and high temperatures has been found to impair the quality of skim milk powders. This is related to the glass transition of lactose. Above a certain temperature (glass transition temperature) amorphous lactose transfers through the rubbery zone into a crystalline state due to increased molecular mobility and as a result
How does knowledge among retailers in Hässleholm municipality, meet the legal obligations for labeling, approved substances, storage and child-resistant packaging for the sale of pesticides to the consumer? The study is limited to Hässleholm municipality and is a supervisory project on behalf of the Environment Office. A selection of 9 different traders’ products of pesticides, have been investiga
Studied Case: This thesis focuses the research on the impact of Industry 4.0 at the Port of Barcelona. It considers of relevance the affect that the fourth industrial revolution is taking place in the workplaces all around the world. The researcher takes the case of the logistics service provider as the Port of Barcelona to understand the implication that the five major technologies characteristic
Context. The formation and evolution of the Galactic bulge and the Milky Way is still a debated subject. Observations of, e.g., the X-shaped bulge, cylindrical stellar motions and young stars in the bulge have suggested that the bulge formed through secular evolution of the disk and not through gas dissipation and/or mergers, as thought previously.\\ Data. We use high-resolution optical spectra of
An alternative energy and chemicals must be found to meet the future demand. A possible source of renewable energy is plant oil since it has a close chemical structure to fossil oil with less refining requirement. However, vegetable oil has not made a significant contribution to replace fossil oil as an energy source because of high demand of fossil oil. It is possible to substitute fossil-based c
Bacteria play a major role in biogeochemical cycles in the ocean. Bacteriophages are estimated to cause the deaths of more than a fifth of all marine bacteria every day and the dynamic between bacteria and virus therefore have huge ecological impact. CRISPR-Cas systems work as an adaptive immune system for bacteria that protect them against viruses. Spacers acquired from viral sequences can make t
Runt om i världen pågår en omställning av energisystem på internationell, nationell och regional nivå av en omfattning som inte noterats på många årtionden. Omställningen innebär i första hand en övergång från fossila, icke förnybara energikällor till fossilfria, förnybara sådana med huvudsakligt syfte att begränsa de antropologiska klimatförändringarna och andra negativa effekter på miljön. Den fAll around the world, energy systems are transforming at the international, national and regional level and at a rate not seen for many decades. This transformation primarily involves a transition away from fossil, non-renewable energy sources and to fossil-free, renewable ones with the primary purpose of halting the process of anthropological climate change and limiting other adverse effects on t
In this work, six soil samples have been analyzed. The samples come from different sedimentary layers on Earth. They were previously studied with the objective to find the trace concentration of iridium, to correlate the increased concentrations of iridium with meteorite impacts that have occurred on Earth. In this work the samples are reanalyzed with the purpose to investigate which other trace e
Recruitment of new individuals is essential for a population to survive and flourish and bladderwrack (Fucus vesiculosus) is on the decline in some parts of the Baltic Sea. The causes being multitude and complex, culminating to the loss of light penetration being the main culprit. As society moves forward, artificial submerged structures may serve as new footholds for a waning population as well a
Given global temperatures are expected to rise past the Paris Agreement’s 2°C limit, Liebherr Mining aims to develop products that progress their Zero Emission Mining strategy. This project therefore selected the major components required by a mobile ammonia-fuelled genset under certain operating conditions and assessed the proposed design against existing solutions. The project was built on find
Human activities accelerate climate variations which cause effects all over the world. The IPCC's Sixth Assessment report, which was released in 2021, shows that human activities have already warmed up the planet significantly. The report reveal that the climate has already increased by approximately 1.1 °C since the period 1850-1900 and the average temperature is predicted to exceed 1.5 °C wi
