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Icke-skadliga virusinfektioner i grönalger På cellnivå är den klassiska virusinfektionen en rättfram process: En värdcell infekteras. Virusets gener tar över och styr värdcellens maskineri för bland annat transkription (DNA-kopiering) och translation (proteinproduktion), därmed tvingas värdcellen producera nya virioner (viruspartiklar). När tillräckligt många virioner tillverkats så aktiveras andThe common way in which algal virus-host systems are discovered is when an algal culture collapses due to the virus-induced lysis. Therefore, the presence of a viral infection in a seemingly healthy culture of Chlamydomonas sp. is an oddity. This study describes such an infection in an algal sample from Örsjön, a lake in southern Sweden, sustained in culture for over six years with no observed adv

This study examines if abnormal return occurs in conjunction with merger announcements in the short-term and compares it with the compounded one-year buy-and-hold abnormal return in the long-interval for European manufacturing firms. In the final sample, the short-term study consisted of 209 firms, while the long-term incorporated 207, both during a sample period of 20 years. In addition, a set of

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

För att kunna handskas med de stigande stressnivåerna hos skolelever är det viktigt att skapa en välfungerande lärandemiljö. Detta kan till exempel göras med olika verktyg och ett av dem är Woof Technologies ApS platform WOOF som kan användas som ett hjälpmedel för lärare i grundskolan för att mäta och arbeta med elevers trivsel och välmående i en klass. Syftet med detta arbete är att analysera ocIn order to deal with the rising stress levels of pupils, it is important to create a well-functioning learning environment. This can for example be done with various tools, one of them being Woof Technologies ApS platform WOOF which can be used as an aid for teachers in elementary school to measure and work with students' well-being in class. The purpose of this thesis is to analyze and eval

Barkborrar är en grupp av insekter som lever av och i vedartade växter. Vissa av barkborrarna har förmågan att angripa levande träd, och därav kan de potentiellt orsaka storskaliga skogsskador. Dessa skogsskador kan ha en betydande ekologisk inverkan på skogars ekosystem samt betydande ekonomisk inverkan för skogsägare och samhällen som är beroende av skogsbruk. I den här studien användes fenologiBark beetles are a subfamily of insects living in and breeding on woody plants. Some of the bark beetle species have the ability to attack living trees, and thereby the potential to cause major forest damage. These forest damages can have a significant ecological and economic impact to forest ecosystems and foresters. In this study, phenology models were used to compare the responses to climate ch

Seminar date: 2021-06-03 Course: BUSN79 – Business Administration: Degree Project in Accounting and Finance Authors: André Tarring & Ion Cozmac Advisor: Johan Dergård Five key words: The GRI standards, management control systems, sustainability reporting, management control, sustainability performance. Purpose: This study serves one purpose, studying if and how the GRI standards has influenced

Kan Skånes säkra det framtida behovet av näringsämnen till jordbruket? Skåne och dess bördiga marker står för en stor del av maten som produceras i Sverige. Med maten som regionen säljer följer även näringsämnen med. Dessa näringsämnen tillsätts till det skånska jordbruket men hamnar i slutändan i regionerna och städerna som konsumerar maten. Av den totala näringen i maten som hamnade i avfall, Nitrogen, phosphorus, and potassium are essential for the survival of humans, animals, and plants. The production and usage of mineral fertilizer has contributed to an over-use of these resources, leakage, and emissions of nutrients. This study aims to simplify and simulate the food system of Scania through a conceptual model. The model maps nutrient flows of N, P and K within the internal foo

Non-native trees are common in urban environments all over the world. From a conservation viewpoint, it is essential to understand how these trees are affecting urban breeding birds. Non-native trees house fewer and smaller invertebrates than native trees do and are considered a poor food source for insectivorous birds. Still, studies are lacking on exactly how non-native trees affect birds’ feedi

The potential of Fe-V-oxide catalysts for use in methanol oxidation is explored. Our results show that although FeVO4 is active and selective for formaldehyde formation, it is not completely stable towards volatilization under reaction conditions. Attempts to stabilize Fe-V-oxide were made using titania, alumina and silica supports. However, we observe that although some stabilization is achieved

Zygaenidae, also known as burnet, forester, smoky, or leaf skeletonizer moths, are a family of mainly diurnal moths well known for their aposematic colouration and the ability to release hydrogen cyanide as a defence mechanism. So far, few attempts have been made to understand the evolutionary history of the global zygaenid fauna. Here, we inferred the most comprehensive molecular phylogeny for Zy

CUB and Sushi multiple domains 1 (CSMD1) is a transmembrane protein containing 15 consecutive complement control protein (CCP) domains, which are characteristic for complement inhibitors. We expressed a membrane-bound fragment of human CSMD1 composed of the 15 C-terminal CCP domains and demonstrated that it inhibits deposition of C3b by the classical pathway on the surface of Chinese hamster ovary

Gene amplification is a common phenomenon in malignant neoplasms of all types. One mechanism behind increased gene copy number is the formation of ring chromosomes. Such structures are mitotically unstable and during tumor progression they accumulate material from many different parts of the genome. Hence, their content varies considerably between and within tumors. Partly due to this extensive va

Background: Postoperative radiotherapy decreases the risk for local and improves overall survival in women with breast cancer. We have limited information on radiotherapy-induced symptoms 10-17 years after therapy. Material and methods: Between 1997 and 1997, women with lymph node-negative breast cancer were randomised in a Swedish multi-institutional trial to breast conserving surgery with or wit

Background: Patients with cyanotic congenital heart disease(CCHD) have haemostatic abnormalities, which result in an increased risk of bleeding. The cause is unknown, but recent studies have indicated that an elevated haematocrit, which is present in cyanotic patients, could be an important factor. The aim of this study was to characterize the haemostatic profile, examine how changes in haematocri

Background: There are indications that early-life exposure to perfluoroalkyl substances (PFAS) can impact neurodevelopment, but results are inconclusive. The objective was to investigate if high early-life exposure to primarily perfluorohexanesulfonic acid (PFHxS) and perfluorooctanesulfonic acid (PFOS) increases the risk of developmental language disorder in children up to seven years of age.Meth

The power expenditure of flapping flight in birds is characterised by a U-shaped function of speed through the air. From this relationship and the assumption of limited power available from flight muscles, it is possible to predict changes in the birds' airspeed in relation to external factors such as wind. These predictions are derived from flight mechanical theory and optimality criteria concern

BACKGROUND: Endotoxin (lipopolysaccharide, LPS) up-regulates inducible nitric oxide synthase (iNOS) in blood vessels during septic shock. This promotes the production of nitric oxide (NO), leading to dilation of the vessels. The aim of the study was to investigate the effects of the LPS-binding endogenous antibiotic bactericidal/permeability-increasing protein (BPI) on the action of LPS on the blo

The cortical representation of various body parts constantly changes based on the pattern of afferent nerve impulses. As peripheral nerve injury results in a cortical and subcortical reorganisation this has been suggested as one explanation for the poor clinical outcome seen after peripheral nerve repair in humans. Cutaneous anaesthesia of the forearm in healthy subjects and in patients with nerve

Examensarbetet undersöker hur passagerare med större föremål påverkar på- och avstigningstider på Öresundståg vid Lund C. Resultaten visar att tiden blir längre om det finns minst en belastad passagerare i flödet som stiger på eller av tåget. Påstigningen blir då i genomsnitt 1,43 sekunder och för avstigning 1,40 sekunder. Om man jämför detta med tiderna det tar för obelastade passagerare, som harThe thesis investigates how passengers with larger items affect boarding and alighting times on Öresundståg at Lund C. The results show that the time increases when there is at least one loaded passenger in the flow boarding or alighting the train. The average boarding time is then 1.43 seconds, and the average alighting time is 1.40 seconds. Compared to the times for unloaded passengers, who take

Luftföroreningar är ett välkänt globalt miljö- och hälsoproblem med över fyra miljoner dödsfall som följd varje år. Ursprunget till luftföroreningar varierar, men vägtrafikens utsläpp är en särskilt viktig källa för många ämnen. En ökad förståelse av orsakerna bakom luftföroreningar, och i vilken mån trafiken påverkar halterna, är en viktig del i att kunna implementera effektiva åtgärder för en bäAir 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