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Popular Abstract in English Imagine a solar powered flash light. Each photon absorbed by the flash light’s solar cell creates electric energy and the flash light’s light source converts the electrical energy again into photons. The purpose of such a device may be questionable, because you would be surprised if it would create more light than what it absorbs. However, under certain conditions it isIn this thesis the luminescence properties of highly doped semiconductors are studied with focus on degenerately n-doped InP. It is demonstrated how photoluminescence measurements on degenerately doped semiconductors allow an estimation of the doping concentration without need for electrical contacts. The degenerate doping can furthermore reveal the conduction band structure for energies higher th

Climate change is expected to have profound ecological effects, yet shifts in competitive abilities among species are rarely studied in this context. Blue tits (Cyanistes caeruleus) and great tits (Parus major) compete for food and roosting sites, yet coexist across much of their range. Climate change might thus change the competitive relationships and coexistence between these two species. Analys

Popular Abstract in English In this thesis I will compare and contrast two willow warbler subspecies, each with different migratory programs that meet in Central Sweden forming a migratory divide and hybrid zone. These migratory programs differ in the direction and distance traveled during migration. The "northern" willow warblers migrate south-southeast through the Balkan Peninsula to winter in eIn this thesis I will compare and contrast the two willow warbler subspecies (Phylloscopus trochilus trochilus and P. t. acredula) with differing migratory phenotypes (or "migratype") in the context of their migratory divide and hybrid zone in central Sweden. Their migratory programs differ in the direction and distance traveled during migration. The "northern" willow warblers migrate south-southe

This thesis investigates the reasons behind the continuation of legitimisation for the ruling party in Singapore, despite its undemocratic practices. The main hypothesis is that the ruling party has effectively utilised competitive authoritarianism, which involves the use of manipulation and repression to maintain control over the public and convince or pressure them to vote for the party. Through

https://www.ub.lu.se/hitta/digitala-samlingar/witnessing-genocide/search-guide-digital-collection - 2026-07-21

Most of the recombinant proteins produced nowadays are fused to affinity tags, in order to facilitate their purification through affinity chromato-graphy. Out the different tags available, poly-histidine tags are among the most commonly used and can help purification through immobilised metal ion affinity chromatography (IMAC). In this thesis, we present different metal binding tags, and their af

The overarching aim of this thesis was to contribute to the existing knowledge on the use of assistive devices in everyday life, by adding the perspective of very old single living people in a European context, namely Latvia and Sweden. The aim was to investigate the socio-demographics and environmental and health aspects that impact on device use in the two national contexts. A further aim was to

https://www.geriatrik.lu.se/geriatrics/education - 2026-07-21

Problem: The Chinese WEEE recycling market is today operated mostly by the informal sector. As this sector eludes the insufficiently enforced environmental laws the e-waste is recycled by means not only harmful to the environment and people working with the recycling process, but it also utilizes methods that do not recover valuable materials in a sound and efficient way. Many companies stand read

https://www.keg.lu.se/en/sites/keg.lu.se.en/files/utvc11_ht_2016_schedule_20150610_1.pdf - 2026-07-23

Doktorandkurs vid Institutionen för informatik Kursöversikten nedan är skriven på engelska. Course overview This is an intermediate course in information systems (IS) research. The assumption is that course participants have already taken (or will be taking) an introductory course in research in IS that covers some of the foundational elements of research within the IS academic discipline. The IS

https://www.ehl.lu.se/organisation/institutionen-informatik/forskarutbildning-vid-institutionen-informatik/emerging-topics-information-systems - 2026-07-21