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This paper describes some research stimulated by a fundamental shift that is occurring in the manufacture and marketing of aero engines for commercial and defence purposes, away from the selling of products to the provision of services. The collaborating aerospace company offers contracts under which it remains responsible for the maintenance of engines which have been purchased by airlines throug
Popular Abstract in Swedish Senpleistocen nedisningshistoria på Nordöstgrönland: kosmogen exponeringsdatering, isutbredning och isdynamik Under den senaste istiden var periodvis stora delar av landmassorna på norra halvklotet istäckta. Idag är den Grönländska inlandsisen den enda större återstoden av detta, men likväl binder den tillsammans med isen i Antarktis och jordens mindre glaciärer väldigtThe aim of this thesis was to use cosmogenic exposure dating to investigating whether highly weathered landscapes in the Northeast Greenland fjord zone have developed during prolonged ice free conditions or have been preserved beneath cold-based ice. Previous work along the Northeast Greenland coast has presented two conflicting hypotheses for the extent of the Greenland Ice Sheet during the last
Paediatric B-cell precursor acute lymphoblastic leukaemias (BCP ALL) with IKZF1 deletions (∆IKZF1) are associated with a poor outcome. However, there are conflicting data as to whether ∆IKZF1 is an independent risk factor if minimal residual disease (MRD) and other copy number alterations also are taken into account. We investigated 334 paediatric BCP ALL, diagnosed 1992-2013 and treated according
A modification of the Roe scheme called L2Roe for low dissipation low Mach Roe is presented. It reduces the dissipation of kinetic energy at the highest resolved wave numbers in a low Mach number test case of decaying isotropic turbulence. This is achieved by scaling the jumps in all discrete velocity components within the numerical flux function. An asymptotic analysis is used to show the correct
We present an open source python based ray tracing tool that offers several useful features in graphical presentation, material properties, advanced calculations of synchrotron sources, implementation of diffractive and refractive elements, complex (also closed) surfaces and multiprocessing. The package has many usage examples which are supplied together with the code and visualized on its web pag
Popular Abstract in English Organic synthesis has been defined as the “intentional construction of molecules by chemical means”1 and is often regarded to have commenced with Wöhler’s preparation of urea in 1828.2 Today, the influence of organic synthesis reaches far beyond the domain of chemistry, touching upon fields such as biology, nanotechnology, material science, and medicine. It has thus supThis thesis deals with the development of new reaction methodology for stereoselective synthesis, as well as total synthesis of natural products and investigations of the stereochemical outcome in the Mukaiyama aldol reaction. Chapter 2 describes efforts made towards the total synthesis of the oxindole natural products perophoramidine and the communesin. The first part of this chapter aims to de
Ultrafast science refers to physical events that happen on the femtosecond (1 fs=10^-15 s) and attosecond (1 as=10^-18 s) timescales. Generation of attosecond pulses is usually achieved by interacting high-intensity femtosecond pulses with matter (typically gases), in a process called high-order harmonic generation (HHG). Under the correct conditions, this process leads to the creation of sub-fs p
Background: Electroconvulsive therapy (ECT) is an effective treatment for depression with potential transient cognitive side effects. However, subjective memory impairment can extend over a long period after ECT. Objectives: This study aimed to assess potential risk factors for long-term subjective memory impairment 6 months after ECT and to explore if the associations are mediated by depressive s
Extended abstractNew technologies have enabled an unprecedented level of data collection, enabling retailers to providepersonalized experiences as part of their strategy to deliver better customer value and managecustomer relationships. At the same time, increasingly intrusive data collection techniques have raisedsignificant privacy concerns among consumers and regulators. The result is an increa
In North and East Syria—also known as Rojava—the convergence of war, politics, and environmental challenges presents a complex and pressing reality. This blog is dedicated to exploring these interlinked issues, highlighting how conflict and ecological degradation are deeply connected, and how these dynamics affect communities in varied and unequal ways.
This study investigated the spatial dynamics of bark beetle infestations and their relationships with risk factors in south-eastern Swedish forests during the years 2018–2020, highlighting the importance of spatial heterogeneity of risk factors, particularly under climate change. First, global Random Forest (RF) models were developed to examine the relationships between bark beetle infestations an
This paper presents an initial technology assessment of the suitability of using aluminium as an energy carrier in shipping. The overall conclusion is that aluminium may become a suitable future energy carrier. Several advantages of using aluminium exist, including high theoretical energy densities, high resource availability, opportunity for circularity, and future potential for low lifecycle env
4 May 2021 Information to field workers at CEC 2021 The coordinator’s administrative responsibilities: It is necessary to plan well ahead of time! Consider all the points in this document and decide what you need to do in order for the fieldwork to be successful. Be sure to act in time, whether it is contracting staff, making purchases, hiring cars, contacting CEC-administrators for assistance or
https://www.cec.lu.se/sites/cec.lu.se/files/2021-05/Information%20to%20field%20workers%20at%20CEC%202021.pdf - 2026-07-17
Responsibility to Protect is a principle that has developed from a report written by ICISS in 2001. The report was inspired by a statement of Kofi Annan where he questioned how the international community would stop another incident like Rwanda or Srebrenica. Since then many situations have occurred that has challenged the concept of R2P. The debate about humanitarian interventions based on intern
