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A business analyst who commences an investigation into design requirements for a new work system probably does not ‘label’ her inquiry process as research. However, a research perspective is needed if a productive learning spiral is to be established in which ‘useful’ systems can be created. Systematic, collaborative inquiry adopting an complex, open systems perspective is required in order to est
Customer service plays an important role for the competitive strength in the market place. Customer service is however also a concern on the supply side of the company in the sense that assessing, selecting and developing suppliers to improve their customer service can make them contributing to the competitiveness of the company. It is from the latter perspective that this research has been carrie
Popular Abstract in Swedish En europeisk köpoption ger innehavaren rätten, men inte skyldigheten, att köpa en underliggande tillgång till ett visst pris, lösenpriset, vid ett bestämt datum, lösendagen. En europeisk säljoption definieras på motsvarande sätt: den ger innehavaren rätten, men inte skyldigheten att sälja den underliggande tillgången. En teori för hur denna typ av finansiella kontrakt sThis thesis consists of three chapters devoted to both empirical and theoretical aspects of option pricing. The first chapter investigates the market for European options on the Swedish OMX index using daily data for the period 1993-2000. The assumption of constant volatility of the returns underlying the Black and Scholes option pricing formula is assessed by extracting the volatilities implied
The advent of Java and similar languages on the real-time system scene necessitates the development of efficient strategies for scheduling the work of a garbage collector in a non-intrusive way. We propose a scheduling strategy, time-triggered garbage collection, based on assigning the collector a deadline for when it must complete its current cycle. We show that a time-triggered CC with fixed dea
Digital technology plays an important role in our work places, and much time is spent in the virtual environments that technol-ogy provides. However, today’s digital work environments are often cumbersome and hard to use, and contribute to stress and ill-health with subsequent cost to the individual, to their employ-ers and to society. Our long-term aim is to facilitate the develop-ment of IT syst
We present a new experimental method for the measurement of the compressibility of cells by analysis of free flow acoustophoresis separation data.
We report a new method to select the optimal actuation frequencies in bulk acoustophoresis devices, by means of differential impedance spectrum analysis measured via the actuating piezoelectric transducer (piezo). The impedance spectra is rich of large spurious resonance peaks originating from bulk resonances not related to the channel resonance, Fig. 1a, why direct measurement of the piezo impeda
This paper reports on research to estimate leaf area index (LAI) in Swedish forests with satellite sensor data. The study is part of a research programme that aims at generating input data for process-oriented forest carbon models. Field-work was carried out in two areas in Sweden about 530 km apart, in the nemoral and boreo-nemoral forest regions. Various ways of estimating LAI in the field were
Tiden är knapp att nå uppsatta klimatmål. För att nå dit krävs kraftfulla åtgärder och styrning. Det står även klart att vi inte når ett hållbart transportsystem med bara någrafå åtgärder – det krävs att en mängd olika åtgärder och styrmedel kombineras och införs. Utöver ökad energieffektivisering, byte av drivmedel och ökade transportkostnader krävs även åtgärder och styrmedel för ett mer transpo
Objective: Antimuscarinic treatment in fasted mice and rats causes clonic convulsion soon after food intake. This study was designed to evaluate the electrophysiological markers of these convulsions and fasting in electrocorticograms in rats. Methods: Male Wistar albino rats were stereotaxically implanted with 10 cortical electrodes, and baseline electroencephalogram recordings were taken for 10 m
We have developed a microfluidic chip for isolation of circulating tumor cells (CTCs) in blood based on microchannel acoustophoresis. Ultrasound radiation forces are used to separate cancer cells from blood cells in a continuous flow format. Separation was dramatically improved after incorporation of a 2-dimensional acoustic pre-alignment of the cells before entering the acoustophoresis separation
De första levande organismerna uppstod på jorden när den funnits i 1,5 miljarder år. Under de följande tre miljarder åren bildades livet på jorden, och existerade i harmoni, med gravitation, kosmisk-strålning, elektriska och magnetiska fält och dess cyklisk-hemlighetsfulla variationer medan exponeringen från den naturlga mikrovågstrålningen var endast i storleksordningen 210-15 W/kg. Det var i deOur team of the clinical researchers in Lund, Sweden, found that electromagnetic radiation, such as those used in mobile communications, even at shallow power values, cause users’ blood albumin to leak through the blood-brain barrier “BBB” into the brain tissue. The BBB is supposed to protect the brain against unwanted and toxic molecules potentially present in the blood, to transfer to the brain
Inom besöksnäringen är delningsekonomins utbredning särskilt tydlig och inom denna industri återfinns en rad företag såsom Airbnb, Vayable, Getmyboat, OffWeFly, EatWith, Uber, Fodora och Travelbuddy. Airbnb, som förmedlar uthyrning av privatpersoners bostäder som en sorts hotellrum, är kanske det mest välkända företaget. Typiskt för delningsekonomin i tjänstesektorn är digitala plattformar som sam
The “neurotrophic hypothesis of depression” posits that low levels of brain-derived neurotrophic factor (BDNF) are associated with Major Depressive Disorder (MDD). Low levels of BDNF have also been found in individuals with suicide attempts, in MDD or other disorders, suggesting that low BDNF may also be associated with suicidality. We assessed serum BDNF in 68 physically healthy and unmedicated (
The PET-CT imaging modality is based on positron emission tomography combined with computed tomography. Before a PET-CT examination, a radioactive tracer (also called a radiopharmaceutical) is intravenously injected into the patient. PET technology images the distribution of this tracer element by detecting the decay. In recent years, PET technology has been developed and improved in hardware and
Many ships today rely on Global Navigation Satellite Systems (GNSS), for their navigation, where GPS (Global Positioning System) is the most well-known. Unfortunately, the GNSS systems make the ships dependent on external systems, which can be malfunctioning, be jammed or be spoofed. There are today some proposed techniques where, e.g., bottom depth measurements are compared with known maps using
Det juridiska ramverket för arbetskraftsinvandring reformerades under 2008 för att möta det ökade behovet av arbetskraft från tredje land. Genom reformen förenklades processen för arbetsgivare att anställa utländsk arbetskraft utifrån den enskilde arbetsgivarens behov. Vid införandet av det nya regelverket avskaffades den tidigare arbetsmarknadsprövningen och det infördes krav på att de löne-och aIn 2008 the legal framework for labour immigration was reformed to meet the increased demand of third country workers, due to a labour shortage in Sweden. The reform simplified the recruitment of third country workers by allowing employers to conduct an assessment of their need for these workers. The introduction of the new framework included the abolishment of the former labour market examination
Den här studien handlar om körsång och dess potentiella påverkan på människor. Syftet är att ta reda på om – och hur körsångarna i Sinnesrokören upplever att körsången påverkar dem och vilka faktorer det är som gör att de i sådana fall påverkas. Körledarens drivkrafter och mål och hur dessa visar sig i praktiken undersöks också. Studien har en kvalitativ ansats och metoderna som använts är intervjThis study is about choir singing and its potential influence on people. The purpose is to find out if - and how the singers in the Serenitychoir experience that the choir singing affects them, and what factors matter when it comes to forming the experience. The choir conductor’s intentions and goals and how are transformed into practice are also investigated. The study has a qualitative approach
I snart 500 år har människan använt sig av diverse optiska instrument för att betrakta sådant som inte är möjligt att se med blotta ögat. Teleskop har använts för att studera himlakroppar och mikroskop för att exempelvis undersöka små biologiska beståndsdelar. Det finns idag många olika metoder inom optisk mikroskopi men samtliga följer en liknande grundprincip. Objektet som ska avbildas exponerasSeveral significant pathogenic bacteria exhibit surface proteins that bind human antibodies, preventing them from being recognized by the human immune system. These bacteria are thus protected from elimination and can survive in the host organism. One common such bacteria is the Streptococcus pyogenes that exhibits the antibody binding M protein on its surface. Streptococcus pyogenes causes more t
E-handeln växer sig bara starkare och starkare. För att företagen ska kunna ge en så bra upplevelse som möjligt krävs det att man förstår sig på hur kunderna beter sig. Vi har skapat en matematisk modell som i 80 % av fallen kan förutspå hur en kund kommer agera i framtiden. Länge har butiksförsäljning varit den dominanta inkomstkällan för affärskedjorna, men senaste åren har E-handeln bara vuxit sE-commerceisgrowingwithinalotsofareas. Itcreatesnewchallengesbutalsoalot of possibilities for the companies. In this thesis we will try to understand customer behaviorthroughaparametricmodel,namelylogisticregression. Theavailabledata isprovidedbyabigcompanyinSwedenwhichissellingproductsthatcanbebought weekly. Besidesunderstandingcustomers’behaviorthemodelintendtoworkasatool indecisionmaking. Subje
