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Popular Abstract in Swedish Sammanfattning Varför ungdomar använder tobak är en stor och komplex fråga. Det finns faktorer på samhälls-, grupp- och individnivå som påverkar unga. Omgiv-ningens normer och attityder liksom föräldrars och kompisars tobaksvanor har betydelse och påverkar ungdomar att börja använda tobak eller att avstå. För att motverka tobaksbruk krävs en kombination av åtgärder på Why adolescents are using tobacco is a large and complex issue. There are factors on society, group and individual levels that affect the youngsters. The norms and attitudes in their surrounding, as well as the tobacco habits of parents and friends, are important when it comes to affecting adolescents to start using tobacco or abstain from it. Counteracting the use of tobacco requires a combinatio

Popular Abstract in Swedish Denna studie omfattar tidsperioderna ordovicium, silur och äldsta devon. Silurperioden sträcker sig från 444 till 416 miljoner år sedan och karakteriseras av globala miljö- och klimatförändringar. Vid denna tid hade djur och växter börjat kolonisera land, land som tidigare varit ödsligt och kargt. Min studie visar att det i Skåne då redan fanns en flora bestående av priThe Silurian through earliest Devonian, between ca 444 and 412 million years ago, was characterized by significant changes in global climate and environment. At that time, plants and animals had begun to expand the colonization of previous relatively desolate terrestrial landscape. Macrofossils of land plants are very rare from this period because these early land plants lacked large and robust ti

The aim of this study was to demonstrate electronic speckle pattern interferometry (ESPI) as a powerful tool in determining diffusion coefficients and partition coefficients for proteins in gels. ESPI employs a CCD camera instead of a holographic plate as in conventional holographic interferometry. This gives the advantage of being able to choose the reference state freely. If a hologram at the,re

Children who are placed in foster care because of neglect or abuse have the right to maintain the relationship with their parents, as per the Swedish LVU law, though this is more often than not a complex feat to achieve. The Convention on the Rights of the Child states that children who are capable of forming their views shall be given the right to express those views freely in all matters affecti

Solar energy is one of the most promising solutions for the energy crisis due to its wide availability and cost-effectiveness. Solar cells have long been used to convert solar energy to electricity, but due to the high cost and difficult processability of the widely available and commercialized silicon solar cells, replacing them with new technology has always been of interest for researchers. Rec

Purpose: The purpose of this study is to explore how consumers navigate and justify their consumption habits while striving for a more sustainable identity. The study examines the internal dilemmas that arise when sustainable values confront the realities of identity expression and social influence. Methodology: A qualitative research approach was adopted, in the form of in-depth interviews, invo

Entrepreneurial intentions have been identified as a relevant precursor to entrepreneurial behavior; however, the complexities of entrepreneurial intention remain under-explored. This study examines the impact of offspring involvement with parental businesses on their entrepreneurial career intentions and the indirect roles of perceived desirability and perceived feasibility. Building primarily on

Betong är ett av byggsektorns mest använda material, men cementproduktionen står för stora koldioxidutsläpp. Ett sätt att minska klimatpåverkan är att reducera andelen cementklinker genom att använda alternativa bindemedel. Vulkanisk puzzolan från Island, VPI är ett tillsatsmaterial från Heidelberg Materials Cement Sweden som kan användas tillsammans med cement som bindemedel i betong. TillsatsmatConcrete is one of the most widely used materials in the construction sector, but cement production is associated with a significant climate impact. One way to reduce this impact is to decrease the proportion of cement clinker by using alternative binders. Volcanic pozzolan from Iceland, VPI, is a supplementary material supplied by Heidelberg Materials Cement Sweden that can be used together with

No one wants to be at the wrong place at the wrong time. No one wants to be accused of having committed a crime one hasn't committed. No one wants to be innocently convicted. According to the presumption of innocence (article 6.2. in ECHR) everyone who has been charged with a criminal offence shall be presumed innocent until proved guilty according to law. It is important that the judge rememb

During the last decades, increased concentrations of natural organic matter (NOM) and colour of surface waters have been reported from northern Europe and North America. Since surface waters are widely used for drinking water production this development has been problematic for drinking water producers. Even though NOM in itself is not harmful, it can cause production of undesirable disinfection b

Applied Machine Learning in Steel Industry – Examination of possible applications of machine learning for SSAB Oxelösund In modern industry there are high demands for increased resource efficiency that in part are motivated by the stronger competition on the global market, as well as by the societal necessity for a more sustainable industry. This master thesis project examines applied machine lear

The Alps are undergoing constant landscape changes due to modern socio economic changes. Especially grassland ecosystems of alpine meadows and pastures are threatened by the slow abandonment of the alpine transhumance traditions. This influences not only biodiversity but also the important cultural landscape seen as a valuable heritage in the Alps. The landscape in the North Italian alpine provinc

The Swedish Antarctic Research Expedition named “SWEDARP” was performed during October 1988 through April 1989. The aim of our project was to study the radioactivity in air and water from Gothenburg to the Antarctic. Between Gothenburg and the Equator, the average activity concentration of 7Be in air was 4.3 ± 0.7 mBq/m3. The activity concentration of 7Be in the South Atlantic down to Antarctica v

This study evaluated the sample sizes necessary to estimate several soil and vegetation characteristics within 10% confidence intervals with 95% probability in three terra firme tropical rainforest sites. Across all three plots, the most spatially heterogeneous variables were measurements of total standing crop root mass, ground surface litter mass, litter fall, root growth and soil respiration wh

A proactive strategy to respond effectively to health impacts related to climate variability, particularly within vulnerable populations, is of vital importance. Such a strategy can be attained if health officials have a deep understanding of how climate variability affects human health and if the resources available for the health care sector are sufficient. This study assessed the perceptions an

Tetra Pak Global Technical Support AB (GTS) is a company within the Tetra Pak group which main task is to supply the whole world with spare parts for all kinds of Tetra Pak machines. GTS supplies about half a million different parts, which demands a large purchase organisation. This thesis deals with the so-called Sourcing purchase, which is a term for purchase of non-forecasted parts that have no

Many premature deaths and health problems could be prevented by adhering to a healthy diet, however, many people lack the self-regulation needed for maintaining healthy behaviors. Goal-conflicting situations (i.e., when a person needs to decide between one of two conflicting goals) are an obstacle for self-regulation, while coping planning is found to be useful in these situations since it entails

This paper evaluates whether a deep reinforcement learning (DRL) approach can be implemented, on the Swedish stock market, to optimize a portfolio. The objective is to create and train two DRL algorithms that can construct portfolios that will be benchmarked against the market portfolio, tracking OMXS30, and the two conventional methods, the naive portfolio, and minimum variance portfolio. We eval

Fed aquaculture is a necessary practice to meet the seafood requirements of a growing population in a sustainable manner. There is a high demand for fish feed to meet the rising protein requirements of the industry. Currently, fish feeds are either unsustainable, affected by seasonal variations, lack a complete amino acid profile, lack scalability, or are too expensive. Single Cell Protein (SCP) i