Filetype
Small island states, such as those in the Caribbean, are dependent on the nearshore marine ecosystem complex and its resources; the goods and services provided by seagrass and coral reef for example, are particularly indispensable to the tourism and fishing industries. In recognition of their valuable contributions and in an effort to promote sustainable use of marine resources, some nearshore are
Solceller – en miljövänlig energikälla? Miljöförstöring i form av växthusgasutsläpp är en gigantisk utmaning som mänskligheten står inför och vi måste agera NU! Solceller innebär en fantastisk möjlighet att utvinna stora mängder “ren” energi från solen. Men hur miljövänliga är egentligen solceller och är det ett effektivt alternativ i Sverige? Varje timme träffas Jorden av tillräckligt mycket eClimate change is one of the greatest environmental challenges at the present time and is currently an issue affecting the entire global population. Alternative renewable energy sources are vital to be able to deal with this challenge. Solar energy is one of the most promising renewable energy sources and is therefore also one of the fastest growing industries in this field. However, solar energy
Civil Aviation is one of the fastest growing sectors on earth, for which emissions currently account for between 2 and 3% of the global total (International Air Transport Association, 2013). Decarbonising the aviation sector is a key challenge on the international agenda, for which sustainable alternative fuels stand as playing a future role. Biofuels for aviation (biojet) have shown to be energy
Have you ever wondered how we can reduce food waste and at the same time provide a more sustainable and eco-friendly environment to all of us? One of the United Nations goals is to bring by 2030 more responsible consumption and production to the environment. Industries are paying annually for solid waste disposal up to 16,000€ and at the same time, the most preferred way to dispose it is through l
Varför drabbas vi av cancer och varför är den så svår att bota? Cancer är i grund och botten en okontrollerad tillväxt av vävnad som orsakas av mutationer i vårt DNA. Denna ackumulerade vävnad kallas för tumör, och efter hand som tumören växer och sprider sig kan den slå ut livsnödvändiga organ i kroppen. Kroppen har ett naturligt försvar mot cancer och de tumörer som uppstår genom immunförsvaret.Immune checkpoint inhibitors have drastically improved the prognosis for several cancer patients, but still the exact underlying mechanism behind cancer immune escape and the role of individual immune cell populations remains poorly understood. Thus, further insights into the level of immune cell infiltration in cancers, their functional role, level of activation and maturity are warranted in orde
With the ever increased focus on sustainability and not least the focus on sustainability in the tourism industry this thesis has critically investigated the suitability of the Tourism Carrying Capacity method in a Danish outdoor-tourism context. The research found that there are considerable limitations and challenges to implementing a TCC approach in Denmark, and even if implemented, legally, cu
The study aimed at (a) investigated the ability of potential lactic acid bacteria (LAB) to ferment quinoa milk, and (b) formulating a method for producing fermented quinoa milk. To meet the objectives, Lactobacillus pentosus and Pediococcus pentosaceus two native bacterial strains were tested. Quinoa milk elaboration was optimized at laboratory scale by selecting an appropriate quinoa/water propor
The field of Quaternary science has, through a long history of high-quality research, produced a vast record of evidence regarding ice sheet dynamics. Consequently, our understanding of such processes and their effects are well understood. However, historically the predominant focus has been of a loose sediment perspective, which has resulted in limited insight into ice-bedrock dynamics. This is i
2008 ändrades den svenska sjukförsäkringsprocessen till ett nytt system, rehabiliteringskedjan. Rehabiliteringskedjan är i lag fastslagna tidpunkter i sjukskrivningsprocessen, där den sjukskrivnes arbetsförmåga ska prövas mot olika bedömningsgrunder. Den första är mot sina ordinarie arbetsuppgifter, den andra mot vad ens arbetsgivare kan erbjuda och den tredje är mot ett arbete som anses vara normIn 2008 the system for the assessment process within the Swedish sickness benefit was changed, into the rehabilitation chain. Within the rehabilitation chain, there are different stages of assessing the individual’s capacity for work. The different stages of assessments are enforced by law. The first assessment examines if the individual has the work ability to work with his or her regular task as
The generation of phenotypes in nature is not boundless. They are governed by natural selection as well as genetic and developmental processes that precede selection. When the developmental process itself is biased, it promotes or prevents certain phenotypes from being formed which in turn could impact the course of evolution. Despite the solid theory behind developmental bias, its exact influence
Swedish small-scale fishing has undergone significant changes over time. There are examples of small-scale fishers who have diversified their activities by developing new sales channels or by processing a large part of their products themselves. However, this type of activity is significantly less well-documented than the fishing itself. In this paper, we examine how the catches of the Swedish sma
Professor emeritus Kontaktinformation E-post: jens [dot] rydstrom [at] genus [dot] lu [dot] se Telefon: +46 46 222 80 69 Mobil: +46 73 079 95 88Organisation Genusvetenskap Besöksadress: Allhelgona Kyrkogata 14M, Lund Rumsnummer: G338 Hämtställe: 31 WebbplatsJens Rydströms profil i Lunds universitets forskningsportalBakgrundJag disputerade i historia vid Stockholms universitet 2001 med avhandlingen
https://www.genus.lu.se/jens-rydstrom - 2026-04-30
In this thesis, a novel method for characterizing Permanent Magnet Synchronous Machines(PMSMs) based in the dynamic response of the analyzed motor is evaluated. The most significant motor characteristics -torque, flux and efficiency maps- are computed from the motor voltage, currents and rotor position data sampled during the experiment. This way of obtaining the characteristics of the motor is po
The purpose of this study is to examine the optimal hedge ratio for the currency exposure of foreign investments. The optimal hedge ratio is determined after evaluating our portfolios from the three perspectives; ex-ante, ex-post and profit/loss. The ex-ante perspective is examined by the usage of historical simulation to calculate VaR on 11 portfolio pairs. Each pair consists of a portfolio with
Denna uppsats behandlar frågeställningar rörande romska barn, dvs. barn med minoritetsstatus i LVU-ärenden (lagen om vård av unga). Uppsatsens syfte är att studera hur rättsväsendet hanterar LVU-ärenden som berör romska barn och att undersöka om rättsväsendet vidtar speciella åtgärder för att garantera de romska barnen sina minoritetsrättigheter. Uppsatsens har även två delysften, att kortfattat bThis essay deals with issues concerning the Romani children, i.e. children with minority status in LVU cases (the law on the care of youth). The essays main purpose is to study how the legal system handles LVU cases involving Romani children and to investigate if the judiciary is taking special measures to ensure the Romani children their minority rights. The essay also aims to briefly describe th
The production philosophy at Tetra Pak Japan is make-to-order. Although, in reality it is more make-to-stock due to the current pricing structure based on discounts for large volume orders. As a result, the inventory levels are high and the responsiveness towards customer demand is limited. Alongside, the marketplace is changing and the competition is increasing. This calls for a change in the sup
The principle of patient self-determination is central to contemporary medical ethics. However, many uncertainties remain regarding its implementation in healthcare. This thesis explores, from an ethical perspective, situations in nephrology care that reveal barriers to patient self-determination or where the requirements of the principle are unclear. The thesis includes three published articles a
Over geologic time, biocalcification – the process by which marine organisms make calcium carbonate (CaCO3) – has reshaped climates, ocean life, and seawater chemistry. In particular, the evolution of coccolithophores, the largest group of nannoplankton and today’s most productive calcifiers, transformed ocean environments and the carbon cycle. Their origins, however, remain enigmatic. This is par
