Search results

I denna rapport analyseras koncept för tandborstar med låg vikt och kort tillverkningstid. Förhoppningen är att låg vikt och kort tillverkningstid kan leda till positiva effekter såsom lägre koldioxidfotavtryck, mindre materialanvändning och en mer kostnadseffektiv tillverkning än vad som gäller för dagens tandborstar. Med hjälp av Ulrich & Eppingers produktutvecklingsprocess har flera olika kThe work presented in this report investigates how a toothbrush can be designed to be lightweight and at the same time fast to manufacture. If a low weight and short manufacturing time can be obtained, several other advantages can be had, such as reduced carbon dioxide footprint, less need of material, and more cost-efficient manufacturing. With the help of Ulrich and Eppinger’s product developmen

Mutation supply can influence evolutionary and thereby ecological dynamics in important ways which have received little attention. Mutation supply influences features of population genetics, such as the pool of adaptive mutations, evolutionary pathways and importance of processes, such as clonal interference. The resultant trait evolutionary dynamics, in turn, can alter population size and species

In Swedish feminist debates of the 1960s and 1970s, the productive woman was frequently constructed as the binary opposite of the non-productive woman. The former was associated with liberation, moral integrity, and independence. The latter was characterized in terms of passivity, laziness, and dependence. By engaging in paid labour, or by otherwise demonstrating her contribution to the greater go

Mänsklighetens intresse för rymden och allt bortom vår värld har alltid varit ett faktum. Raketer har skjutits upp i det svarta sedan 1940-talet och utvecklingen av rymdutrustning går ständigt framåt med ny teknik som konstant tänjer på gränserna för vad vi trodde var möjligt. Dock leder nya tankar och idéer till ökad resursefterfrågan, särskilt i de tidigare designstadien. Därför behövs metoder fEarly designs are often based on rough estimations and assumptions. Such is also the case when designing space turbines that power rocket engine fuel pumps which generally have obscure performance and size requirements. Often times, this leads to unique, single-use designs. This complicates and restricts the amount of possible testing. To aid in this early design process and to help predict turbin

The relevance of grassroots innovations for higher citizen participation in the sustainability transition of electricity systems has been progressively increasing. Renewable energy cooperatives are grassroots innovations that envision an electricity system where citizens become producers and consumers of electricity from renewable sources instead of being dominated by big energy companies dependen

The aim of this study was to investigate mental health and emotion regulation strategies of unaccompanied asylum-seeking children and adolescents. A survey was conducted, using questionnaires that also contained queries regarding the participants’ belief of the future. A total of 95 boys in the ages of 13 to 17 years old, living in seven refugee housing facilities, answered the questionnaire “The

Purpose: While the phenomenon of new product development (NPD) and cycle time in general is sufficiently covered in the literature, a clear picture of the NPD length in startups has not been available so far. Simultaneously, the literature emphasizes the entrepreneurial perception and judgment as major factor for the success of a business, but does not specifically refer to the NPD cycle time.

This thesis examines the effect of cognates on codeswitching in planned speech production in trilinguals, which has previously been unexplored. Previous studies on cognates and codeswitching have primarily focused on cognate facilitation effects in spontaneous speech in bilinguals. While experimental studies have gradually acknowledged the importance of investigating codeswitching in a sentence co

C3 and C5 convertases are central stages of the complement cascade since they converge the different initiation pathways, augment complement activation by an amplification loop and lead to a common terminal pathway resulting in the formation of the membrane attack complex. Several complement inhibitors attenuate convertase formation and/or accelerate dissociation of convertase complexes. Functiona

Popular Abstract in Swedish Syftet med studierna i denna avhandling har i huvudsak varit att förstå funktion för de två proteinerna fibromodulin och kondroadherin och deras samspel med övriga komponenter i bindväven. Dessa två proteiner fungerar som byggstenar och tillhör en familj av proteiner lokaliserade i bindväven i den så kallade extracellulära matrisen utanför cellerna. Bindväv återfinns i Connective tissue contains a prominent extracellular matrix (ECM), which provides for physiological and mechanical properties. Intra- and inter-molecular interactions between proteins in this ECM provide for the formation of molecular networks. These interactions determine the shape of the tissue as well as cell behavior. This thesis is focused on the leucine-rich repeat proteoglycans fibromodulin

This master thesis explores some ideas about interaction design of mobile communication and mobile devices. In initial studies the definitions of mobility and communication are summarised as a foundation for deeper understanding of the interaction between the user and the technical devices. Also additional studies about future usage and human behaviour are presented. Based on additional user obser

Preparing travel time data can be a time-consuming process, which greatly limits the flexibility of transport simulation models. In the current paper, we present an approach to integrate a routing engine locally in an existing modeling framework, hence enabling to dynamically calculate travel times in the constructed emergency medical services (EMS) simulation models. This integration eliminates t

Transition metal dichalcogenide (TMDCs) monolayers make an excellent component in optoelectronic devices such as photodetectors and phototransistors. Selenide-based TMDCs, specifically molybdenum diselenide (MoSe2) monolayers with low defect densities, show much faster photoresponses compared to their sulfide counterpart. However, the typically low absorption of the atomically thin MoSe2 monolayer

In advective-dispersive simulations of aquifers, retardation factors using linear adsorption isotherms are commonly employed to represent the adsorption-desorption process for solutes in soil. In particular, the retardation factors that use entire pore space (total porosity) or effective pore space (effective porosity) are widely used. Although another retardation factor that describes solute tran

Aquaporins play a crucial role in water homeostasis in the human body, and recently the physiological importance of aquaporins as glycerol channels have been demonstrated. The aquaglyceroporins (AQP3, AQP7, AQP9 and AQP10) represent key glycerol channels, enabling glycerol flux across the membranes of cells. Adipocytes are the major source of glycerol and during lipolysis, glycerol is released to

The plant defence proteins α1- and α2-purothionin (Pth) are type 1 thionins from common wheat (Triticum aestivum). These highly homologous proteins possess characteristics common amongst antimicrobial peptides and proteins, that is, cationic charge, amphiphilicity and hydrophobicity. Both α1- and α2-Pth possess the same net charge, but differ in relative hydrophobicity as determined by C18 reverse

As much attention has devoted to the proteome research during the last few years, biomarker discovery has become an increasingly hot area, potentially enabling the development of new assays for diagnosis and prognosis of severe diseases. This is the field of research interest where efforts originating from both academic and industrial groups should jointly work on solutions. In this paper, we woul

In recent years RFID technology has attracted interest from the retail industry where it is being presented as a possible key to creating more efficient and effective retail supply chains. If RFID technology is to be implemented in packaging throughout retail supply chains, there is a need to develop an understanding of how and why the technology affects activities and processes within retail supp

We present the first results from several ongoing studies of the stellara bundances, ages, and chemical trends in the long-lived dwarf stars in the solar neighborhood that belong to the thin and thick galactic disk.We confirm that the trends of α-elements in the thin and thick disk are distinct, and we also find that the thick disk show the typical signature of SN Ia contribution to the chemical e

Large scale infrastructure developments means balancing of partly conflicting interests of economic growth, social cohesion, environmental impact etc. How this balancing is done when the project hits the local context is depending on the legislative framework, for instance through building permits environmental assessment. Still, there can be a big difference between the intentions of the law, and