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In the ocean, carbon export is driven by the biological carbon pump where organic matter is transported from the surface layer to the deep sea. The sinking particulate organic matter is mainly a product of phytoplankton aggregates and faecal pellets from zooplankton & fish, together also known as “marine snow”. Marine snow is continuously being degraded by microbial and zooplankton activities
In this thesis, the traditional way of conducting chromatographic separation by linear elution was re-evaluated by introducing variable elution buffer trajectories in the mobile phase. Through numerical simulation of ion exchange chromatography using a finite volume method approach, various salt concentration profiles were optimized for improving the separation of components, using yield and produ
The formation of our Galaxy has long been a rewarding area of research within astronomy. A large part of analysis includes using kinematics to separate the different structures in the Milky Way and also to discover accreted stars. While it is highly useful to understand the motions of populations there are systematic errors that follow, due to the difficulties of getting high quality data for them
All over the world there is a shortage of adequate, affordable housing that enables social integration and sustainability. Many individuals and households have access to housing but live in different kinds of involuntary isolation with respect to age, gender, income, culture and ethnic background. There is a lack of housing forms that can contribute to solving these societal challenges through dif
Context. The solar vicinity is currently populated by a mix of stars with various chemo-dynamic properties, including stars with a high metallicity compared to the Sun. Dynamical processes such as churning and blurring are expected to relocate such metal-rich stars from the inner Galaxy to the solar region. Aims. We report the identification of a set of old super-metal-rich (+0.15 ≤ [Fe/H] ≤ +0.50
All hematopoietic cells originate from hematopoietic stem cells (HSC) residing in the BM. The process of differentiation, through which HSCs generate progenitors and subsequently mature blood cells has been extensively studied but many of the regulatory mechanisms involved remains elusive. The classical model for hematopoiesis has been established based on the identification of common myeloid prec
Whole blood is rich in information about the physical state of an individual and is routinely used in a variety of clinical and research applications. In this thesis, the use of a microfluidic technique called acoustophoresis for separation of different blood components is explored. Acoustophoresis uses an ultrasonic standing wave field to manipulate cells in a microfluidic device. Cells within th
From the moment a government entity makes the decision to initiate a procurement procedure until that procedure is finalized through the award of a contract to a winning supplier, the procuring entity’s course of action is regulated in great detail by relevant public procurement legislation which for Swedish contracting authorities primarily consists of primarily law (2016:1145) on public procurem
Den reklam som användare möter på internet är idag ofta anpassad och utvald för att överensstämma med dennes intressen. För att erbjuda sådan individuellt riktad reklam använder adtechsektorn metoder som bygger på en storskalig kartläggning av användares onlineaktiviteter. Vanligen är det en tredje part till den tjänst som användaren faktiskt nyttjar som ansvarar för och utför den här kartläggningToday, internet users often face advertising that is tailored and selected to match their interests. To offer such targeted advertising the adtech sector use methods that rely on a large scale tracking of users’ internet activities. In most cases this tracking is performed by a third party to the service that the user is accessing. This makes it hard for individuals to know what information is col
I asylmål med sexuell läggning som grund för förföljelse utgör den sökandes berättelse oftast den främsta och ibland enda bevisningen. Utifrån en bevisvärdering av den muntliga utsagan avgörs således om den sexuella läggningen har gjorts sannolik och om sökanden därmed kan åtnjuta skydd som flykting. Fokus för prövningen blir alltså en trovärdighetsbedömning av sökanden och dennes berättelse. Mot In refugee claims, where the applicant is seeking asylum on account of a well-founded fear of being persecuted because of his or her sexuality, the applicant’s own testimony is usually the primary evidence. Therefore, the authorities and the courts have to evaluate whether the applicant has made his or her sexual orientation plausible, and consequently is able to enjoy protection as a refugee, by
Tillämpningen av lagen (1991:572) om särskild utlänningskontroll har de senaste åren kraftigt ökat. Lagen avser kvalificerade säkerhetsärenden och möjliggör för Säkerhetspolisen att ta utländska medborgare som bedöms utgöra en fara för rikets säkerhet i förvar i avvaktan på att de utvisas. Eftersom utvisningarna sällan kan verkställas med anledning av risken för omänsklig behandling i mottagandelaThe application of the Act (1991:572) Concerning Special Controls in Respect of Aliens have had a major increase these last few years. The law refers to qualified security cases and enables the Security Police to take foreign citizens who are deemed to pose a danger to national security into custody pending their deportation. As the deportations can seldom be carried out due to the risk of inhuman
Nowadays, there is a tendency towards higher dynamics in markets and increasing competition especially in engineering and high tech industries. Firms today need to invent new products, acquire unique business models and thereby continuously exceed customer expectations as well as outperform competition. In contrast to the previous innovative approach that relied solely on internal capabilities, ma
With her 1953 debut Anna Rydstedt (1928-1994) immediately became part of a strong tradition of Swedish women poets, a tradition represented by authors such as Karin Boye and Edith Södergran. The debut was a furious attack on those who had thwarted her attempts to become a minister in the Church of Sweden. Rydstedt’s poetry is always existential, both in its content and process. Writing, for her, i
Popular Abstract in Swedish Den svenska grundskolan har under de senaste åren genomgått och genomgår fortfarande en stark utveckling inom ramen för den allmänna decentraliseringen i samhället. Beslut och ansvar läggs allt längre ner i organisationen. De krav som ställdes på en skolledare tillbaka i tiden var i första hand att han skulle vara administratör och den som bevakade att skolans verk-samThe issues of the study are: How do the assistant principals face the work as school leaders? Which demands of competence do the new school leaders face? Which needs of competence development exist for new school leaders? In the school studied the organization of the management was changed from one principal and one director of studies to one principal and six assistant principals. All of these we
Popular Abstract in Swedish Bakgrund Hjärntumör hos barn är en relativt ovanlig sjukdom som drabbar cirka 70 barn i Sverige årligen. Under de senaste 40 åren har överlevnaden i barnhjärntumör ökat avsevärt från under 40 % till över 70 %. Överlevnaden har inte varit utan pris och många barn får kognitiva svårigheter efter behandlingen, t.ex. problem med långsamhet, dåligt minne, bristande uppmärksaBackground: Pediatric Brain Tumor (PBT) survivors suffer from cognitive sequelae, especially within the areas of cognitive tempo, attention, executive function and memory. The cognitive difficulties are often accentuated over the years, but knowledge about the long term trajectory is still scarce. Aim: The aim of this thesis was to examine cognitive sequelae after Pediatric Brain Tumor (PBT); ris
Popular Abstract in Swedish Värk i leder och muskler tillhör de vanligaste orsakerna till långtidssjukskrivningar och förtidspensioneringar. En betydande del av dessa tillstånd är orsakade av belastningsergonomiska faktorer i arbetslivet, och kan således förebyggas. Arbetsrelaterade besvär i nacke, axlar och armar är betydligt vanligare bland kvinnor än bland män. Orsakerna till detta är ofullstänWork-related musculoskeletal disorders are widespread, and are, for unclear reasons, more common among females than in males. Several risk factors have been described; constrained and awkward postures, repetitive and/or force demanding motions, and lack of recovery. The exposure to such risk factors was systematically assessed in 116 male and 206 female fish-processing industry workers. Large diff
Popular Abstract in Swedish Den s.k. "uncertain dichotomous choice" modellen används för att beskriva gruppbeslut. Modellen består av två komponenter: gruppstruktur och röstsystem. Gruppen utgörs av ett antal personer med ett gemensamt mål. Medlemmarnas uppgift är att välja ett av de två givna alternativen, av vilka det ena är korrekt. Dessa två symmetriska alternativ antas så utformade att det inA probabilistic framework used in studying collective decision making is the uncertain dichotomous choice model. The model is essentially characterized by two components: the organizational structure and the voting process. By organizational structure, we refer to a group composed of members with common objectives and who are tasked to choose one of the two given alternatives, one of which is assu
Popular Abstract in Swedish Det har blivit vanligt med beskrivningar av hur olika trender påverkar det sätt på vilket arbetslivet utformas. I första hand rör det sig om informationsteknikens inflytande inom i stort sett alla samhällsområden men det handlar också om en globaliserad ekonomi, ökad konkurrens, samt strävan efter högre kvalitet och större flexibilitet. Denna utveckling kan förstås som The study explores the interaction of general management ideas like TQM (here referred to as technocratic visions) and microprocesses of narrating and organizing in two different contexts: the public sector (health care) and the private sector (manufacturing) in Sweden. The purpose is to provide a better understanding of what happens when models of this type are introduced into a work organization
Popular Abstract in Swedish Avhandlingens syfte är att genom en empirisk undersökning öka förståelsen av tidigt föräldraskap till barn med Downs syndrom. Jag utgår ifrån föräldrarnas livsvärld och utvecklar ett medföljande arbetssätt. Tio familjer med nyfödda barn med Downs syndrom följs genom regelbundna hembesök under det första året med barnet. Tillsammans med en medarbetare samtalar jag med föThe purpose of this dissertation was to increase - through an empirical investigation - our understanding of early parenthood in relation to children with Down syndrome. My point of departure has been the parents’ life-worlds, and I have developed an accompanying working method. Ten families with newborn infants with Down syndrome were followed through regular home visits during the first year of
