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Popular Abstract in English This thesis is concerned with the efficient generation of ultra-short light pulses, far beyond the visible spectral range. Such light pulses can reach durations below 100 attoseconds, where one attosecond is one billionth of a billionth of a second. Why do we want to generate such extreme light pulses? Our knowledge of basic processes in physics and chemistry is to aHigh-order harmonic generation (HHG) provides the basis for attosecond light sources delivering coherent pulses in the extreme ultraviolet spectral region. Such light sources are employed for a variety of applications within imaging, attosecond spectroscopy, and high-precision frequency metrology. However, the rather low efficiency of the HHG process, which implies a limited pulse energy and repet

This study investigates the relationship between prior entrepreneurial intent and perceived learning outcomes of students entering a new venture creation programme. Previous research in this field has not addressed the influence of prior entrepreneurial intentions on learning outcomes but rather treated entrepreneurial intent as an outcome of entrepreneurship education. Therefore, the aim of this

Climate change is a fact and effects everybody on this planet, whether its humans, plants or animals. There is a comprehensive agreement about the mechanisms on how aerosol particles affect the radiative balance of the earth, but there is a need of more knowledge to fully understand climate change and the strength of the aerosol radiative forcing. The aim of this thesis is to investigate if the SM

Thesis purpose: The purpose of this study is to understand how national culture plays a role in consumer perceptions through a comparative case study of three different ethical skincare brands from three different countries. Methodology: This study makes use of a qualitative research method, data collection is done through semi-structured mediated interviews of 20 participants from 14 different c

Thesis Purpose: Purpose of this thesis is to explore consumer perception of innovation in grocery retail products in Sweden. Particularly focusing on how consumers perceive innovation within private label and manufacturer brands. Methodology: Qualitative analysis has been conducted through semi-structured interviews in order to understand consumer perceptions towards innovation in grocery sector i

This paper is concentrated on analyzing the relationship between RMB exchange rate, real estate and stock markets in China. In particular, the study aims to investigate how these three markets are correlated and to what extend RMB appreciation will influence China`s housing and stock markets. Based on the empirical study, I find that the relations between RMB exchange rate, Chinese real estate and

We present a technique for real-time ray tracing with the goal of reaching 240 frames per second or more. The core idea is to trade spatial resolution for faster temporal updates in such a way that the display and human visual system aid in integrating high-quality images. We use a combination of frameless and interleaved rendering concepts together with ideas from temporal antialiasing algorithms

Three different models (STEP–GENDEC–NOflux, Zhang2010, and Surfatm) are used to simulate NO, CO2, and NH3 fluxes at the daily scale for 2 years (2012–2013) in a semi-arid grazed ecosystem at Dahra (15∘24′10′′ N, 15∘25′56′′ W, Senegal, Sahel). Model results are evaluated against experimental results acquired during three field campaigns. At the end of the dry season, when the first rains re-wet the

The Swedish well fare state is a young phenomenon. In the 19th and early 20th centuries there were numerous non proprietor, poor and pauper people in the Swedish countryside such as crofters, boarders and inhabitants of rural slums. Being poor also meant being more exposed to risks than more resourceful persons, and having fragile safety nets. This paper is about these poor and pauper persons of In the 19th and early 20th centuries there were numerous non-proprietors and paupers in the Swedish countryside, such as crofters, boarders and inhabitants of rural slums. Multisource methods such as triangulation of written documents, historical maps and archaeological evidence are used to study the living conditions, vulnerability and marginalization of boarders and inhabitants of rural slums fr

Background: Transposition of the great arteries (TGA) is a complex congenital heart disease that requires early diagnosis as well as advanced surgical repair and postoperative support. We sought herein to study the impact of surgical timing on early postoperative morbidity.Methods: We reviewed all patients with TGA corrected at our institution via arterial switch operation (ASO) between June 2001 Background: Transposition of the great arteries (TGA) is a complex congenital heart disease that requires early diagnosis as well as advanced surgical repair and postoperative support. We sought herein to study the impact of surgical timing on early postoperative morbidity.Methods: We reviewed all patients with TGA corrected at our institution via arterial switch operation (ASO) between June 2001

Vascular risk factors are believed to be involved in dementia development by increasing risk of the most common dementia types, Alzheimer’s disease (AD) and vascular dementia. The aim of this thesis was to study if risk factors affect key brain pathology directly, by using biomarkers for dementia in preclinical stages, and to assess previous findings in a large population-based setting.Paper I: ar

This chapter examines if identity is as important as is often claimed, and as a consequence, when and why concerns of identity are triggered in working life, and we do so through a constructionist identity perspective. In the chapter, we argue that many people do not necessarily engage with their identities most of the time and explore why they do in certain kinds of jobs and in particular situati

The Siljan region hosts Europe´s largest impact structure. The high-relief landscape, with a central granite dome bordered by lake basins, contains an array of glacial and shore-level landforms. We investigated its deglaciation history by mapping and analysing landforms on high resolution LiDAR-based Digital Surface Models coupled with well-dated sediment successions from peat and lake sediment coThe Siljan region hosts Europe´s largest impact structure. The high-relief landscape, with a central granite dome bordered by lake basins, contains an array of glacial and shore-level landforms. We investigated its deglaciation history by mapping and analysing landforms on high resolution LiDAR-based Digital Surface Models coupled with well-dated sediment successions from peat and lake sediment co

Course Outline CÖSM32_2021 1 COURSE SCHEDULE ASIA’S ROLE IN THE GLOBAL ECONOMY (CÖSM32) COURSE DIRECTOR: STEFAN BREHM (stefan.brehm@ace.lu.se) COURSE PERIOD: 30. AUGUST – 29. SEPTEMBER PLACE: If not stated otherwise, lectures, and seminars will be held in the Asia Library. ORGANISATION: This course consists of 8 lectures (Roman numbers I-VIII), two seminars (numbers 1- 2) and three student assessm

https://www.ace.lu.se/sites/ace.lu.se/files/2021-06/COSM32_2021_schedule.pdf - 2026-07-02

Accelerating Sustainability Transitions - IIIEE Annual report 2021 Accelerating Sustainability Transitions INTERNATIONAL INSTITUTE FOR INDUSTRIAL ENVIRONMENTAL ECONOMICS ANNUAL REPORT 2021 The IIIEE is an international and interdisciplinary centre within Lund University. We are com- mitted to produce rigorous, impactful, and solution-oriented interdisciplinary research, focused on Business Managem

https://www.iiiee.lu.se/sites/iiiee.lu.se/files/2022-04/IIIEE%20annual%20report%202021.pdf - 2026-07-02

Between 2014 and 2022, Sweden introduced a feminist foreign policy (FFP), which entailed a “systematic gender equality perspective throughout foreign policy”. This chapter focuses on how FFP was practiced and implemented by officials at Swedish Embassies around the world. Using a framework of practice theory, implementation theory and feminist institutionalism, the overarching questions guiding th

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https://www.byggmek.lth.se/forskning/programutveckling/ - 2026-07-02