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Models of community organization involve variations of the top-down (predator control) or bottom-up (nutrient limitation) hypotheses. Verbal models, however, can be interpreted in different ways leading to confusion. Therefore, we predict from first principles the range of possible trophic level interactions, and define mathematically the instantaneous effects of experimental perturbations. Some o
Chromatography was first described in the 1903 by a Russian scientist. Later on chromatography was almost forgotten until the 1940s when two British scientist published a study about liquid chromatography. They were later awarded with the Nobel prize in chemistry for their work in chromatography. Chromatography has since then developed a lot and nowadays several different kinds of liquid chromatog
Studying the formation and evolution of galaxies is a fundamental problem in astronomy that warrants repeated investigation by astronomers. How do spiral galaxies like our own come to have its distinct spiral arms? How do stars and their properties change over time and will they continue to evolve in the same manner? To try and attempt to answer such questions we need to look to our own Galaxy the
The GASMAS technique has previously proven useful for examining and measuring the oxygen concentration in the lungs of preterm infants. GASMAS can distinguish absorption by one gas from the bulk absorption of the surrounding media, and can provide an instant, non-invasive and non-destructive way of examining lungs, and diagnosing dangerous conditions such as pneumothorax. Pneumothorax can be life-
This study investigates the impact of supports and synthesis routes on the performance of supported gold nanoparticles in the Sonogashira coupling reaction. The catalysts were synthesized by deposition-precipitation (DP) and incipient wetness impregnation (IMP), employing carriers of different nature (redox: CeO2, TiO2, and non-redox: Al2O3) and were characterized by various physical techniques su
Resistivity in horizontal boreholes can give useful detailed information about the geological conditions for construction in rock, i.e. in front of a tunnel bore machine. This paper is an attempt to identify a suitable methodology for an effective measuring routine for this type of geophysical measurements under actual construction site conditions. Prior to any measurements numerical modelling was
Sustainability reporting is the primary way corporate sustainability data is disseminated to stakeholders and the wider public. While sustainability reporting is growing, certain industries still lag, such as shipping. Given the crucial role sustainability reporting can play in driving sustainable business practices, promoting improved reporting in the shipping industry is a valuable goal. This t
The thesis will present and analyze different roles women actors in Northern Ireland took upon themselves during the period known as ”The Troubles” (1969- 1998). It will present a theoretical framework that consists of several relevant theories on agency, actorship and gender in conflict as well as created categories that helps organize the roles identified. The type of conflict, in this case eth
Aktieägaravtalet är en rättslig företeelse som saknar uttrycklig reglering i lag. Problem kan därför uppstå vad gäller avtalens bundenhet mellan parterna. I denna uppsats undersöks i vilken utsträckning vissa överlåtelsebindningar respektive beslutsbindningar är bindande parterna emellan. Inom associationsrätten finns en grundläggande tanke om att aktier skall vara fritt överlåtbara. Undantag fråThe shareholder agreement is a legal occurrence that lacks explicit statutory regulation. Therefore problems may occur in what way these agreements are legally binding upon the parties. This essay examines in which extent certain transfer obligations respectively decision obligations are binding upon the parties. In company law there is a basic principle that the shares are freely transferable. E
Korruption är ett begrepp som inte har någon klar definition. Det är många vetenskaper som diskuterar korruption, dock görs detta med delvis olika synvinklar. Denna framställning visar att det finns många olika perspektiv att anlägga på korruptionsproblematiken, perspektiv som dessutom leder till olika slutsatser om problematikens orsaker och verkan. Fler tvärvetenskapliga perspektiv behövs, för aCorruption is a term that has no clear definition. There are many disciplines that discuss corruption, however, this is done with somewhat different perspectives. This essay shows multiple perspectives on corruption issues, perspectives which also lead to different conclusions about the causes and effects of corruption. More interdisciplinary perspectives are needed to be able to work against corr
Competition policy is important for the promotion of fair competition, preventing abuse of market power and protecting consumer and business interests. It is thus an area that builds and moulds itself according to the fabric or structure of society and eventually evolves by habitually adjusting to the dynamics of government economies. Despite the different economic dynamics between the European Un
In November 2001, Malta experienced the first larger arrival of irregular immigrants when a boat carrying 57 people landed on its shores. Since then, the influx of immigrants has continued which constitutes a new phenomenon for this small country situated in the middle of the Mediterranean Sea - it has become the destination for immigrants seeking a better life in Europe. These so-called ?boat peo
This master thesis aims to develop a fermented “in-between-meal” snack with a macronutrient composition reflecting the needs of athletes. An oat base, enriched with whey protein, vegetable oils, salt and maltodextrin, called “Skaka & Smaka” was given as a starting product. The oat base was subjected to eight commercially available starter cultures and their fermentation profiles in the oat bas
I städer finns det, något förenklat, bilgator och gågator. En sommargågata, däremot, är både ock. Den skapas genom att biltrafiken tillfälligt stängs av på en gata under sommarmånaderna vilket ger fotgängare tillgång till hela gaturummet. Den frigjorda ytan kan användas till verksamheter och restauranger som vill flytta ut i gatan, växter, bänkar, spel och lek, cykelställ och konstinstallationer. A summer street is created by temporarily closing the car traffic on a street during the summer months. The pedestrians get access to the entire street and the liberated space can be used for activities, greenery, benches, bike parking, art and by restaurants. During recent years major cities have made the concept known to the general public. My study shows that summer streets have a much longer
År 2020 anger 212 av 286 kommuner i Sverige att de har ett underskott på bostäder i kommunen som helhet. Sveriges befolkning ökar och bostadsbeståndet hänger inte med. I studien syftar bostadsbristen till definitionen som är skillnaden mellan vad som kollektivt uppfattas som en godtagbar bostadssituation och det faktiska läget på marknaden. Situationer som inte kollektivt anses vara godtagbara bosThe housing responsibility in Sweden is primarily controlled by the municipalities. The municipalities in Sweden have a monopoly on controlling land use with detailed development plans. The population rises every day and the majority of the Swedish municipalities confirms having lack of housing. This study has been made in order to investigate how five municipalities work with their housing respon
Am I allowed to help? – The care manager’s new dilemma Authors: Thea Nilsson Svegard and Helena Rülf Title: Am I allowed to help? – The care manager’s new dilemma Supervisor: Staffan Blomberg Assessor: Alexandru Panican The aim of this essay was to examine how care managers working with elderly look upon their own role in relation to customer-choice. The customer-choice reform is spreading rapi
User Experience is a concept that recently has gained a lot of interest in the high-tech consumer products industry. While technology development has converged and is starting to become a commodity and, as markets mature and loyal customers become more important, User Experience has emerged as a way to gain a competitive advantage. By studying literature, cases and articles, as well as interviewin
This master thesis examines the internationalization of small and medium-seized enterprises with focus on how companies should proceed to establish sales activities overseas. Our thesis work has been done at QlikTech, a small international software company. QlikTech intends to penetrate the British market. The purpose of this master thesis is to create strategies how to gain market shares in the B
Den 1 april 2020 trädde lag (2020:62) om hemlig dataavläsning i kraft. Något förenklat kan sägas att lagen skapar nya möjligheter för brottsbekämpande myndigheter att med tekniska hjälpmedel i hemlighet bereda sig tillgång till information som finns i teknisk utrustning. Hemlig dataavläsning, framöver benämnt HDA, kan användas vid förundersökning, i underrättelseverksamhet samt vid så kallad särskOn 1 April 2020, the Swedish Act (2020:62) Regarding Secret Reading of Data was established in Sweden. Somewhat simplified the law can be said to create new opportunities for enforcement authorities to secretly get access to information in different types of technical equipment. This is done by using a variation of technical methods. Secret data reading, hereinafter referred to as HDA, can be used
