Filtyp
This report is written during a Master Thesis carried out at Volvo Aero Corporation, VAC, in relation with the Division of Production and Materials Engineering at Lund Institute of Technology. The purpose with this report is to get a better insight in some of the problems occurring during the manufacturing of a space nozzle. At VAC a new kind of nozzle wall design has been introduced for their sp
Abstract Authors: Sandra Candell and Salome Hector Title: "If you'd like to write, I'll be here" - a study of interaction in blogs about grief. [translated title] Supervisor: Torbjörn Hjort The main purpose of this study was to examine the social interaction on blogs, written by someone that unexpected lost a beloved one. The main focus was therefore on how both the blogger and
Svensk sammanfattning I och med inträdandet av en avkriminalisering beträffande homosexualiteten i juli 1944 kom homosexuella handlingar att inte längre ses som något brottsligt. Kampen mot jämställdhet slutade inte där, det skulle dröja fram till 1979 innan homosexualiteten ströks ur Socialstyrelsens listor över sjukdomsbegrepp. Idag har homosexuella bland annat rätt att ingå äktenskap och adoptEngelsk sammanfattning Due to the entry into force for a decriminalization regarding homosexuality in July 1944, homosexual activities were not considered as something criminal anymore. The struggle towards a more equal society did not end there. It took until 1979 before homosexuality was removed from the National Board of Health and Welfare (Socialstyrelsens) register of illnesses. Today, homos
Kvarts är ett av de vanligaste mineralen i jordskorpan, både i sediment och i bergarter. Halten kvarts i sediment är intressant vid bedömning av bl.a. mognadsgraden. Ett sediments mognadsgrad kan användas vid tolkning av dess historia, vilket är till nytta vid t.ex. rekonstruktion av paleomiljöer. Geologiska institutionen vid Lunds universitet, har efterfrågat metoder för bedömning av kvartshaltenQuartz is one of the most common minerals on Earth and is found in both lose sediment, sedimentary rock and bedrock. The maturity grade of sediments can be determined by the amount of quartz it contains. This is used when interpreting the sediments’ geological history and reconstructing paleoenvironments. The purpose of this thesis is to analyze and develop methods for determining the quartz conte
Popular Abstract in Swedish Cancer är ett samlingsnamn för en grupp av sjukdomar som karakteriseras av att cellerna delar sig okontrollerat, till skillnad mot kroppens friska celler. Det leder till att en tumör kan bildas och cellerna kan därifrån sprida sig till andra delar av kroppen och ge upphov till dottertumörer, även kallade metastaser. I Sverige uppskattar man att cirka var tredje person k
Multi-electrode geoelectrical imaging has become very popular and is used for many different purposes. For some of these, the inclusion of IP data would be desirable as it would allow the interpreter to distinguish between, e.g. sand formations with saltwater infiltration and clay formations or help delineate landfills. However, present-day IP measuring techniques require the use of nonpolarisable
Popular Abstract in Swedish En industrirobot är en flexibel programmerbar maskin som bör användas för sådant arbete som inte lämpar sig för människan att utföra. Olika tekniska begränsningar i dagens styrsystem begränsar dock robotars tillämpbarhet. Avhandlingen föreslår ett nytt sätt att bygga upp robotstyrsystem så att roboten på bästa sätt skall kunna tjäna människan.Industrial robots play a key role in manufacturing systems. Robots are distinguished from other types of machinery mainly on the basis of their programmability and ability to be adaptable to different tasks. The use of computer control to achieve desired flexibility implies that software issues for embedded control systems are central for the applicability and utilization of the equipment. The str
A humus soil with a pH of 4.9 was fumigated with chloroform for 5 h, after which only 1% of the initial bacterial activity remained. Half of the fumigated soil was limed to a pH of 7.5. Both the unlimed soil (UL) and the experimentally limed soil (EL) were inoculated with unfumigated (UL) soil or a field-limed (FL) soil with a pH of 6.1. The pH tolerance and activity of each developing bacterial c
During the last two decades, the synthesis of silica with an ordered mesoporous structure has been thoroughly explored. The basis of the synthesis is to let silica monomers polymerize in the presence of an amphiphilic template component. In the first studies, cationic surfactants were used as structure inducer. Later it was shown that pluronic copolymers also could have the role. One advantage wit
Survival after childhood cancer has improved substantially over recent decades. Although cancer in childhood is rare increasingly effective treatments have led to a growing number of long-term survivors. It is estimated that there are between 300,000 and 500,000 childhood cancer survivors in Europe. Such good survival prospects raise important questions relating to late effects of treatment for ca
Using in situ surface-sensitive electron microscopy performed in real time, we show that the dynamics of micron-sized Ga droplets on Ga P(111) can be manipulated locally using Au nanoparticles. Detailed measurements of structure and dynamics of the surface from microns to atomic scale are done using both surface electron and scanning probe microscopies. Imaging is done simultaneously on areas with
This study documents the terrestrial palynological record at the John's Nose section, a new Cretaceous-Paleogene (K-Pg) boundary site in North Dakota, USA. In addition to Mud Buttes and Pyramid Butte, John's Nose represents the third K-Pg section in southwestern North Dakota that preserves direct evidence of the Chicxulub asteroid impact, allowing for direct comparison over the timing and trends o
Successful further development of superhigh-constrast upconversion (UC) bioimaging requires addressing the existing paradox: 980 nm laser light is used to excite upconversion nanoparticles (UCNPs), while 980 nm light has strong optical absorption of water and biological specimens. The overheating caused by 980 nm excitation laser light in UC bioimaging is computationally and experimentally investi
Heart fatty acid binding protein (HFABP) is expressed in the brain and is elevated in cerebrospinal fluid (CSF) from patients with several forms of neurodegenerative diseases such as Alzheimer's disease (AD), Parkinson's disease with dementia, Lewy body dementia, vascular dementia (VaD), and Creutzfeldt-Jakob disease. However, whether HFABP in CSF is a stable biomarker or if it can help predict co
The human molecular chaperone protein DNAJB6 was recently found to inhibit the formation of amyloid fibrils from polyglutamine peptides associated with neurodegenerative disorders such as Huntington's disease. We show in the present study that DNAJB6 also inhibits amyloid formation by an even more aggregation-prone peptide (the amyloid-beta peptide, (Aβ42)(2), implicated in Alzheimer's disease)in
En ofta använd behandlingsmetod mot cancer är strålbehandling. Inför en sådan behandling undersöks patienten ofta med en typ av röntgenundersökning som kallas datortomografi (eng. computed tomomgraphy, CT). Röntgenbilderna visar hur mycket av strålningen som absorberas av kroppen, vilket innebär att man tydligt ser skillnad mellan ben, som absorberar mer av strålningen än vävnad och luft, som strå"Introduction; The aim of this study was to examine the possibilities for MRI-based radiotherapy treatment planning. The work included evaluation of geometric image distortions in MR-images, investigations of how segmentation of bone could be performed from images acquired with the ultra short time of echo (UTE) pulse sequence and assessment of dosimetric differences between treatment plannin
Detta arbete har syftat till att göra en situationsstudie av dissipation beräknad i HIRLAM, en numerisk prognosmodell, över Danmark och att ge författarna kunskap om fenomenet turbulens. Studien gjordes genom att bearbeta data erhållen från HIRLAM i MATLAB. Den nedersta delen av troposfären där jordytan har en påverkan på atmosfären kallas för gränsskiktet. När vinden blåser i gränsskiktet kommer This case study aimed at analyzing dissipation calculated in HIRLAM, a numerical forecast model, over Denmark and to give the authors more knowledge about the phenomenon of turbulence. The study was done by processing data obtained from HIRLAM in MATLAB. The lowest part of the troposphere where the surface of the earth has an impact on the air is called the planetary boundary layer. When the wind
Malmö är en stad som genomsyras av människor och kulturer från olika delar av världen. I den kulturella mångfalden finns tätgrupper med en nära förankring i sin etniska bakgrund. Min uppsats beskriver hur människor med persisk bakgrund förhåller sig till sina persiska musiktraditioner och sin kulturella identitet i det svenska samhället. Studien har inspirerats av mina egna erfarenheter av persiskTo preserve the origin of a musical culture Malmo is a city that contains a lot of people from different parts of the world. There are certain groups with a close bond to their ethnicity. My study is a description of how people with persian roots relates to their persian musical traditions and their cultural identity in the swedish society. The study is inspired by my own experiences of Persian mu
This Master's thesis aims to investigate librarians' identity construction through the study of their narratives about themselves and their lives. We want to understand in what way the education in Library- and Information science contributes to shape the students professional identity and how these identities then continue to be transformed when they enter their professional lives. We ass
