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We give a new proof of the Nirenberg-Treves conjecture: that local solvability of principal type pseudodifferential operators is equivalent to condition (Psi). This condition rules out sign changes from - to + of the imaginary part of the principal symbol along the oriented bicharacteristics of the real part. We obtain local solvability by proving a localizable a priori estimate for the adjoint op
Gas turbine maintenance is crucial due to high cost for the replacement of its components and associated loss of power during shutdown period. Conventional scheduled maintenance, based on equivalent operating hours, is not the best alternative as it can require unnecessary shut downs. Condition based maintenance is an attractive alternative as it decreases unnecessary shut downs and has other adva
The O 1s photoelectron satellite spectrum of water has been recorded with high resolution and some vibrational structures were detected. The electronic and vibrational structures observed in the experimental spectrum are well interpreted with the aid of the molecular ab initio calculations based on the symmetry adapted cluster-configuration interaction (SAC-CI) method. (c) 2006 Elsevier B.V. All r
Human islet amyloid polypeptide (hIAPP), a pancreatic islet protein of 37 amino acids, is the main component of islet amyloid, seen at autopsy in patients with type 2 diabetes mellitus (DM2). To investigate the roles of hIAPP and islet amyloid in DM2, we generated transgenic mice expressing hIAPP in their islet beta cells. In this study, we found that after a long-term, high-fat diet challenge isl
The presence of Fe-bound cyanide ligands in the active site of the proton-reducing enzymes [FeFe]-hydrogenases has led to the hypothesis that such Bronsted-Lowry bases could be protonated during the catalytic cycle, thus implying that hydrogen isocyanide (HNC) might have a relevant role in such crucial microbial metabolic paths. We present a hybrid quantum mechanical/molecular mechanical (QM/MM) s
High-resolution electron spectroscopy applied under resonant Auger-Raman conditions is shown to be a powerful tool for characterizing complex potential energy surfaces of core-excited states in polyatomic systems. BF3 is used as a prototype molecule: excitation of the Bls --> 2a(2)(") transition leads to an exceptional out-of-plane vibrational excitation resolved over a wide energy range (3.6 eV).
High intakes of alcohol have adverse effects on skeletal health, but evidence for the effects of moderate consumption are less secure. The aim of this study was to quantify this risk on an international basis and explore the relationship of this risk with age, sex, and bone mineral density (BMD). We studied 5,939 men and 11,032 women from three prospectively studied cohorts comprising CaMos, DOES,
The Auger-Doppler effect in the experimental spectra of HF and DF is presented. and the dynamics of ultra-fast dissociation in the core-excited state are discussed. The Doppler splitting of the atomic Auger peak is calculated and simulated using a classical model and a very good agreement is found between experiment and simulation. It is shown that the difference in photon energy relative to the r
Syftet med denna masteruppsats är att undersöka människors upplevelser av att delta i flyktingmottagandet i Malmö under hösten 2015. Uppsatsen studerar motiveringar till varför volontärer beslutat sig för att hjälpa. Dessa analyseras främst genom Marcel Mauss teori om gåvosystem: volontärarbete, eller att hjälpa, ses som en gåva i uppsatsen. Motiveringarna analyseras också genom Erving Goffmans drThe purpose of this master’s thesis is to explore the experience of people who helped in the refugee reception in the city of Malmö, Sweden, in the fall of 2015. The thesis delves into the reasons and motivations to why volunteers decided to help. These are primarily analysed through Marcel Mauss’ gift-exchange theory where volunteering is seen as a gift; and secondarily by Erving Goffman’s dramat
According to the values of democracy, the governors should be held accountable for their actions and omissions by the governed. However, on a global level there is a deep deficit of democratic accountability. The Inter-Parliamentary Union, (IPU) whose members consist of almost all of the national parliaments in the world, claims to increase accountability within the UN system. This thesis uses the
This study aims to identify important market characteristics that affect international market establishments in the IT consulting industry. A qualitative case study has been conducted at an IT consulting firm, where Osterwalder's Business Model Canvas has been used as a tool to identify and compare market characteristics to existing theory regarding internationalisation in the Knowledge-Intens
The aim of this master’s thesis is to examine which competencies and qualifications Swedish government agencies require when hiring records managers today. Recently, the archival sector has encountered several challenges regarding technical solutions for electronic archiving. This thesis also attempts to address whether these changes affect the need for specific qualifications in records managers.
Climate change and increasing urbanization gives societies great challenges in managing urban planning for a sustainable future. Urbanization aggravates floods by increasing the amount of impermeable surfaces and by modifying flow routes. Resilience is the capability to recover from a stress and high resilience is seen as the goal of a healthy development. By including the concept of resilience inEvery year billions of people get affected by floods and the economic losses are among the highest when it comes to natural disasters. Depending on your social class the consequences of a flood can vary greatly. An urban flood resilience index, S-FRESI, can be used to identify extra sensitive areas and strengthen these neighborhoods to create a more resilient society.
Purpose – The purpose of this paper is to understand how and why companies apply circular business models. It gives valuable insights for other companies and policy makers who can use this study to make new regulations to stimulate the circular economy. The research question to be answered is: “How and why do companies apply the circular economy to their business model?”
Syftet med denna uppsats är att skapa förståelse för hur företag kan anpassa sin marknadskommunikation i och med närvaron av sociala medier. Eftersom ämnet är relativt outforskat och det finns begränsad kunskap inom ämnet så vi vill med denna uppsats undersöka företagens utveckling från traditionell marknadskommunikation till en marknadskommunikation som lämpar sig bättre för en bransch i förändri
