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Global extinction of a species is sadly irreversible. At a local scale, however, extinctions may be followed by re-invasion. We here show that this is not necessarily the case and that an ecological community may close its doors for re-invasion of species lost from it. Previous studies of how communities are assembled have shown that there may be rules for that process and that limitations are set
Adaptive and multi-level governance is often called for in order to improve the management of complex issues such as the provision of natural resources and ecosystem services. In this case study, we analyse the contemporary multi-level governance system that manages water resources and its ecosystem services in a fresh water lake in Sweden. We assess the relative importance and barriers of three c
All-inorganic colloidal perovskite quantum dots (QDs) based on cesium, lead, and halide have recently emerged as promising light emitting materials. CsPbBr3 QDs have also been demonstrated as stable two-photon-pumped lasing medium. However, the reported two photon absorption (TPA) cross sections for these QDs differ by an order of magnitude. Here we present an in-depth study of the TPA properties
The article explores the degree to which memory studies has become established as an academic field. Although we acknowledge that there are drawbacks to formal institutionalization, we contend that it is useful to think strategically about the future of memory studies. We argue that three key developments must take place in order for a field to become institutionalized. First, individual scholars
The human side of mergers and acquisitions (M&A) – with focus particularly on resistance - has puzzled scholars for decades. Still, there is little discussion as regards to how the concept should be defined or understood. Often expressions of resistance, rather than its actual content, are described. What do personnel actually oppose? In this dissertation, the content, process, and context of
Handheld computing and mobile information systems are continuously breaking new ground, with an increased importance for business. However, there is evidence that we still have lessons to learn concerning the design of handheld information systems. Handheld information system poses challenges to the designer in the unique properties of handheld technologies and the conditions of use of handheld te
Popular Abstract in Swedish I och med att mjukvarubaserade produkter ökar i antal ökar också vikten av en effektiv mjukvaruutvecklingsprocess, ur ett konkurrensperspektiv. Bristfällig produktkvalitet och höga utvecklingskostnader är något som mjukvaruutvecklingsorganisationer under många år har kämpat med. Studier inom SPI (software process improvement) syftar till att förbättra produktkvalitet ocThe number of software-based products is increasing, which is why the importance of an efficient software development process is also increasing, from a competitive advantage perspective. For years, software development organizations have been plagued by poor product quality and high development costs. Studies in software process improvement (SPI) have concerned themselves with improving the softw
Popular Abstract in Swedish Avhandlingen diskuterar Sociologins position i debatten kring artificiell intelligens, d.v.s sådan AI som kan skapa kunskap på egen hand. Det påpekas att sociologin behöver göra en åtskillnad mellan två sätt att skapa AI system: Symbolisk AI (eller Klassisk AI) och Distribuerad AI – DAI. Den sociologiska litteraturen visar en i stort kritisk attityd till symbolisk AI viThis dissertation is concerned with Sociology’s stance in the debate on Strong Artificial Intelligence, i.e. such AI that is able to shape new knowledge without human interference. There is a need for sociologists to realize the difference between two approaches to constructing AI systems: Symbolic AI (or Classic AI) and Distributed AI – DAI. Sociological literature shows a largely critical attitu
Populärvetenskaplig sammanfattning: Jordens klimat står under ständiga variationer och förändringar, och det är inte alltid lätt att sära på orsak och verkan bland den mängd av faktorer som styr klimatet. För att kunna reda ut ursprunget till de förändringar som sker, måste de bakomliggande processerna vara väl kända. Sedan är det möjligt att genom matematiska modeller uppskatta de individuella prSeveral studies have analysed the relationship between Normalised Difference Vegetation Index (NDVI) and radiative surface temperature. A main goal for most studies have been to find the best method for carrying out land cover classifications and to study land cover changes, based on a combination between the two parameters. Since atmospheric components have a significant influence on both paramet
The climate on earth is changing and to deal with this problem, a method called climate change adaptation is used. Some researchers consider this a new method while others claim that it is a version of risk management. Based on this discrepancy, this master thesis aims to answer the following research question “What are the differences and similarities in practice between climate change adaptation
The present study focuses on the preparation of poly(ethylene oxide) (PEO) nanocomposites based on the synthetic Laponite clay. The clay was added both in its pure form as well as organically modified with low molar mass poly(ethylene glycol) (PEG) components in order to enhance the compatibility between Laponite and PEO. Several PEG's with different end groups were used. Almost all of them were f
Föreliggande uppsats är ett examensarbete i juris kandidatprogrammet. Uppsatsen är skriven inom området familjerätt men berör även de delar av straffrätten som faller inom ramen för kriminalvårdens betydelse. Jag kommer i uppsatsen klargöra för hur umgängesrätten ser ut för de barn vars föräldrar är frihetsberövade och placerade på en kriminalvårdsanstalt. För att skapa en helhetsbild över barnensThe thesis is written within the field of family law but it also discusses parts of criminal law which carry relevance to correctional treatment. I will clarify how the right of access exists for those children, who’s parents are deprived of liberty and whom are placed in a correctional facility. In order to develop a complete picture of these children’s’ situation I will also explain the Social S
International migration facilitated by contemporary globalization has brought about feelings of insecurity in terms of identity for both the host societies as well as incoming immigrants posing a major obstacle in host countries to integrate immigrants into society. In such context, social exclusion and discrimination can occur. The author argues that this is not a one-directional process. In orde
The Sub-Saharan African countries of South Africa, Sierra Leone and Rwanda have recently gone through post-conflict political transitions where one of the main dilemmas is how to deal with the past. The three countries have all opted for a transitional justice mechanism that involves truth-telling in order to address past abuses, and with the prospect of reconciliation. The objective of this stud
When China opened it borders in 1979, the country suffered from a severe brain drain as its most talented students left the country to take advantage of educational opportunities abroad. However these emigrant engineers, known locally as "sea turtles" or Chinese returnees, have become a valuable asset for Zhongguancun Science Park. The authorities for the high-tech park are now adopting
