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  • Disputas: 2018-09-07 13:15 Polhemsalen, Uppsala
    Zimmermann, Jakob
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Matematisk-datavetenskapliga sektionen, Matematiska institutionen, Algebra och geometri.
    Classification of simple transitive 2-representations2018Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    The representation theory of finitary 2-categories is a generalization of the classical representation theory of finite dimensional associative algebras. A key notion in classical representation theory is the notion of simple modules as those are in some sense the building blocks of all modules. A correct analogue of simple modules in the realm of 2-representations is the notion of simple transitive 2-representations since those also turn out to be building blocks of 2-representations.

    This thesis is concerned with the classification of simple transitive 2-representations for a number of different interesting 2-categories. In Paper I we study simple transitive 2-representations of Soergel bimodules in Coxeter type I2(4) and show that all simple transitive 2-representations in this case are equivalent to cell 2-representations. In Paper II we classify simple transitive 2-representations for the quotient of the 2-category of Soergel bimodules over the coinvariant algebra which is associated to the two-sided cell that is the closest to the two-sided cell containing the identity element, in all Coxeter types but I2(12), I2(18) and I2(30). It turns out that, in most of the cases, simple transitive 2-representations are exhausted by cell 2-representations. However, in Coxeter types I2(2k), where k ≥ 3, there exist simple transitive 2-representations which are not equivalent to cell 2-representations. In Paper III we show that for any complex polynomial p(X) the set of irreducible, integer matrices which are annihilated by p(X) is finite. Moreover, we study the set of irreducible, integral matrices satisfying X² = nX, for n ≥ 1, and count its elements. In Paper IV we show that every simple transitive 2-representations of the 2-category of projective functors for a certain quotient of the quadratic dual of the preprojective algebra associated with a tree is equivalent to a cell 2-representation. Finally, in Paper V we study simple transitive 2-representations of certain 2-subcategories of the 2-categories of projective functors over star algebras. In the simplest case, which is associated with Dynkin type A2, we show that simple transitive 2-representations are classified by cell 2-representations. However, in the general case we conjecture that there exist many more simple transitive 2-representations.

  • Disputas: 2018-09-14 13:15 Ada Lovelace, B-huset, Linköping
    Karlsson, Marcus
    Linköpings universitet, Institutionen för systemteknik, Kommunikationssystem. Linköpings universitet, Tekniska fakulteten.
    Blind Massive MIMO Base Stations: Downlink Transmission and Jamming2018Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Massive MIMO (Multiple-Input--Multiple-Output) is a cellular-network technology in which the base station is equipped with a large number of antennas and aims to serve several different users simultaneously, on the same frequency resource through spatial multiplexing. This is made possible by employing efficient beamforming, based on channel estimates acquired from uplink reference signals, where the base station can transmit the signals in such a way that they add up constructively at the users and destructively elsewhere. The multiplexing together with the array gain from the beamforming can increase the spectral efficiency over contemporary systems.

    One challenge of practical importance is how to transmit data in the downlink when no channel state information is available. When a user initially joins the network, prior to transmitting uplink reference signals that enable beamforming, it needs system information---instructions on how to properly function within the network. It is transmission of system information that is the main focus of this thesis. In particular, the thesis analyzes how the reliability of the transmission of system information depends on the available amount of diversity. It is shown how downlink reference signals, space-time block codes, and power allocation can be used to improve the reliability of this transmission.

    In order to estimate the uplink and downlink channels from uplink reference signals, which is imperative to ensure scalability in the number of base station antennas, massive MIMO relies on channel reciprocity. This thesis shows that the principles of channel reciprocity can also be exploited by a jammer, a malicious transmitter, aiming to disrupt legitimate communication between two single-antenna devices. A heuristic scheme is proposed in which the jammer estimates the channel to a target device blindly, without any knowledge of the transmitted legitimate signals, and subsequently beamforms noise towards the target. Under the same power constraint, the proposed jammer can disrupt the legitimate link more effectively than a conventional omnidirectional jammer in many cases.

  • Disputas: 2018-09-07 13:00 David Magnussonsalen (U31), Stockholm
    Jemstedt, Andreas
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Psykologiska institutionen.
    Metacognitive Aspects of Learning: What Influences Magnitude and Accuracy of Ease-of-Learning Judgments?2018Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    To learn efficiently, many situations require people to judge what will be easy or difficult to learn, or how well it has been stored in memory. These metacognitive judgments are important to understand because they most likely guide how people behave when they learn, and consequently how much they learn. In this thesis, I focus on what is referred to as ease-of-learning (EOL) judgments, that is judgments about how easy or difficult a material will be to learn. EOL judgments have received relatively limited attention in the metacognitive literature. Therefore, this thesis also considers for comparison the more extensively researched judgments of learning (JOL), which are judgments of how well a studied material has been learned or how likely it is to be remembered on a later memory test. I had two major aims with my research. First, I aimed to investigate how accurate EOL judgments are, that is, how well they can predict the ease of future learning, and what moderates this accuracy. More precisely, I investigated what affects EOL judgment accuracy by varying how much an item-set varies in a predictive item characteristic, as well as varying methodological aspects of the judgment situation. The second major aim was to investigate what sources of information people use to make EOL judgments and how the information is used to make metacognitive judgments. In three studies, participants made EOL judgments for word pairs (e.g., sun – warm), or single words (e.g., bucket), studied the items, and tried to recall them on memory tests. In Study II, participants also made JOLs after studying the items. To estimate the accuracy of the judgments, the judgments were correlated with recall performance on memory tests. The results of the thesis show that EOL judgments can be accurate when they are made on a to-be-learned material which varies in a predictive item characteristic (Study I and II). In some conditions, EOL judgments are even as accurate as JOLs (Study II). Study II also supports the cue competition hypothesis, which predicts that, when people judge memory and learning, they sometimes rely less on one source of information if other information is available. Furthermore, Study III shows that processing fluency (the experience of effort associated with processing information), may be an important source of information for EOL judgments, and that people’s beliefs about available information can moderate how the information is used to make EOL judgments. Overall, the results show when EOL judgments will be accurate and when they will not, and provides evidence that people may use processing fluency to make EOL judgments even when it contradicts their beliefs. Importantly, the results also indicate that when multiple sources of information are available, information may compete for influence over metacognitive judgments.

  • Disputas: 2018-09-07 10:00 Magnélisalen, Kemiska övningslaboratoriet, Stockholm
    Wang, Dong
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för organisk kemi.
    New Reactions with Allyl- and Allenylboron Reagents: Transition-Metal-Catalyzed and Transition-Metal-Free Carbon-Carbon Bond Formation Processes2018Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    Organoboron compounds have been widely used in carbon-carbon bond formation reactions in organic synthesis and catalysis. This thesis is focused on cross-coupling reactions of allyl-, allenylboronic acids and their ester derivatives via transition metal catalysis or transition-metal-free processes.

    The first part of the thesis describes Cu-catalyzed C(sp3)-C(sp3) formation reactions involving allylboronic acids and α-diazoketones. This coupling process shows high γ-regioselectivity, resulting in branched allylic products. When stereodefined cyclic allylboronic acids were employed as the substrate, the relative facial configuration was retained in the reaction product.

    The second part involves Pd-catalyzed cross-coupling of allylboronic acid and α-diazoketones. The reaction proceeds with high α-regioselectivity, affording linear allylic products. Accordingly, the palladium- and copper-catalyzed cross-coupling of allylboronic acid and α-diazoketones occurs with opposite regioselectivity.

    The third part concerns a new transition-metal-free carbon-carbon bond formation between allenylboronic acids and in situ generated diazo compounds. The diazo compounds are generated from tosylhydrazones in the presence of base. The reaction is suitable for synthesis of densely substituted conjugated dienes with high Z-selectivity.

    In the final part, the allylation of quinones with allylboronates is presented. The reaction was performed without any catalyst or additive. Various quinones can be employed as substrates, including unsubstituted, monosubstituted benzoquinones and naphthoquinones.

  • Disputas: 2018-09-07 13:00 sal FA32, AlbaNova universitetscentrum, Stockholm
    Robustini, Carolina
    Stockholms universitet, Naturvetenskapliga fakulteten, Institutionen för astronomi.
    The dynamic chromosphere: Results and techniques with an observational approach2018Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    The chromosphere is a critical interface between the relatively cold photosphere and the hot corona. Its landscape is rich in very dynamic phenomena such as jets, spicules, and surges, which are thought to play an important role in the heating of the Sun’s upper atmosphere. However, these events are often driven by mechanisms that are not entirely understood owing to the complex physical conditions governing the chromosphere. In the average chromosphere, the magnetic pressure often dominates over the gas pressure. Thus the structure and dynamics of this layer are mainly regulated by the magnetic field configuration.

    This thesis is based on three projects that investigate some chromospheric dynamic phenomena and their relation with the magnetic field. In these projects, we follow an experimental approach, by analysing high-resolution ground-based observations with spectropolarimetry as well as satellite co-observations.

    The first project focuses on exotic fan-shaped jets that are sometimes observed above sunspot light bridges. We investigate the thermal properties and the dynamics of these jets, and suggest magnetic reconnection as the mechanism producing these events.

    In the second project, we study a δ-sunspot penumbra that harbours fan-shaped jets. By using inversion techniques, we retrieve the 3D structure of the magnetic field and temperature, which reveal that the magnetic reconnection driving the fan-shaped jets occurs in the lower chromosphere.

    In the third project, we investigate the role of the magnetic field in a unipolar supergranular network cell having a radial arrangement of the fibrils. For this chromospheric structure, we suggest a model of the magnetic topology based on multiwavelength observations and inversion techniques.

  • Disputas: 2018-09-07 10:00 föreläsningssalen, Filmhuset, Stockholm
    Thorslund, Tove
    Stockholms universitet, Humanistiska fakulteten, Institutionen för mediestudier.
    Do You Have a TV?: Negotiating Swedish Public Service through 1950's Programming, "Americanization," and Domesticity2018Doktoravhandling, monografi (Annet vitenskapelig)
    Abstract [en]

    This dissertation presents a cultural history of early Swedish television. The focus is on the investigation of 1950s programming, intermedial connections, processes of “Americanization,” and domestic, socio-cultural change in direct relation to the new medium. By using a wide range of sources—archival materials, official records, newspaper articles, advertisements, and more—the dissertation examines discourses on how television was experienced during its installation years in Swedish homes, as well as how U.S. television contents were perceived and came to be a sizeable part of early Swedish television. This thesis thereby endeavors to contribute to a wider, transnational framing of Swedish television history.  

    The first chapter examines the scheduling practices and ideas of television programming in the 1950s. The engagement is with notions of medium specificity and intermedial connections between television, radio and film. The chapter further provides a background to how principles for programming were discussed before the televisual start and during the medium’s first years of operation in Sweden. 

    The second chapter offers a case study of television program schedules between 1956 and 1959. It addresses the kind of programs, or categories, the Swedish Broadcasting Corporation invested in; patterns in the daily, weekly and seasonal schedule; increase in broadcasting hours; and prominent countries within the international television material. The case study primarily displays a hitherto largely overlooked influence that came from the U.S. and its commercial television program model.

    The third chapter discusses various forms of American influences on early Swedish television. A recurring cause of concern in Swedish media in the 1950s was that the Swedish public service television could be, and at times was, associated with “Americanization” and commercial popular culture at large. However, instead of defining Swedish public service television in contrast to the U.S. commercial television model, this dissertation argues that the formative years of Swedish television, in various ways, was a convergence of the British public service model and of U.S. program techniques, ideas and formats. 

    Lastly, the forth chapter deals with the cultural changes that resulted from television’s incursion into private homes and living rooms. The chapter examines the television set as a new furniture, within a broader framework of the “people’s home” and the functionalistic ideals of the 1950s. It further addresses how the new medium was marketed to the public, and states that the excitement for television segued to a variety of product advertisements that used the new media as a promoter for an array of commodities.

    The study concludes that programs, formats, and ideas from the U.S., and not—as one might have thought—the UK, constituted the largest number of imported materials on Swedish television during the 1950s. Swedish public service television thus made use of transnational flows from U.S. commercial television networks right from the start, while simultaneously discursively distancing itself from this model of television. Furthermore, the dissertation shows that these programs and formats were pivotal for rapidly turning television into a popular media of entertainment, and a soon-to-be-natural part of the Swedish domestic setting in the 1950s. 

  • Disputas: 2018-09-07 13:00 Nordenskiöldsalen, Geovetenskapens Hus, Stockholm
    Eriksson, Åsa
    Stockholms universitet, Humanistiska fakulteten, Institutionen för etnologi, religionshistoria och genusvetenskap.
    Resisting feminised precarity: Farm workers in post-strike Western Cape, South Africa2018Doktoravhandling, monografi (Annet vitenskapelig)
    Abstract [en]

    This dissertation seeks to contribute to the body of research on gender, neoliberal globalisation and work, and on the forms of resistance people engage in within a deeply unequal global order. It was devised in relation to developments during and after widespread, unprecedented labour and social protests among farm workers in export-oriented agriculture in the Western Cape, South Africa, 2012–2013. The protests, referred to in popular discourse as the ‘farm worker strike’, are widely held to have been spearheaded by people in the most precarious positions: seasonal workers, including migrants both from within and outside South Africa, many of whom were women. The dissertation draws on multi-sited ethnography conducted among farm workers in several of the areas to which the protests spread, during what I refer to as the post-strike moment.

    The aim of the study is to contribute to an understanding of differently positioned farm workers’ experiences of work and life precarity, organising and resistance – as well as to the interlinkages between these phenomena. Using intersectionality as an ‘analytic sensibility’, the dissertation explores how power relations linked to gender, race/ethnicity and nationality/migration status may be understood as shaped by, and contributing to shaping, work and life precarity. It also looks at how these hierarchies are articulated through labour regimes on farms and through workers’ resistance. Moreover, it interrogates labour activism as a route to resisting not only socio-economic deprivation and apartheid legacies, but further to restoring a sense of dignity (of labour).

    The dissertation engages with various broader theoretical discussions. It deliberates on the overlaps between the notions of feminisation of labour, precarious work and precarity – conceiving of precarity as a feminised phenomenon. Experiences of precarity in the Western Cape farmlands, it suggests, are shaped by the devaluing of some workers, linked to racism, sexism and global inequalities, as well as to historical and contemporary processes of dispossession. The dissertation also describes how (some) female farm workers, through presenting themselves as knowledgeable about their rights, and through accentuating feminised aspects of care and responsibility in their activism, position themselves as respectable. Furthermore, through identifying silences and exclusions in representations of farm workers, it contributes to writing black/African female migrant workers back into the strike narrative as important and militant actors. Finally, the dissertation argues that attention to multiple forms of violence – slow, structural, symbolic and direct – and the violence of globalisation under neoliberalism is crucial in order to understand the messy and violent aspects of the ‘farm worker strike’. Importantly, it explores these topics as informed by broader global developments, through which power, control and the retention of value are increasingly placed outside of the deeply unequal spaces that constitute commercial farming areas, discussing links with Sweden as a destination for South African wine and deciduous fruit.

  • Disputas: 2018-09-07 14:00 Ahlmannsalen , Geovetenskapens hus, Stockholm
    Kilström, Matilda
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Nationalekonomiska institutionen.
    Households' Responses to Policy in Labor and Credit Markets​2018Doktoravhandling, monografi (Annet vitenskapelig)
    Abstract [en]

    Household Debt and Monetary Policy: Revealing the Cash-Flow Channel We examine the effect of monetary policy on spending when households hold debt linked to short-term rates, such as adjustable-rate mortgages (ARMs). Using registry-based data, which is broadly representative of Swedish households, we find substantial heterogeneity in consumption responses to changes in monetary policy. We find that consumption responds more strongly to changes in interest rates for households with high debt than for households with little or no debt. Moreover, households with ARMs appear to be more interest-rate sensitive than households with fixed-rate mortgages. Our results are consistent with hand-to-mouth behavior and an important transmission of monetary policy through the cash-flow channel.

    Should I Stay or Must I Go? Temporary Refugee Protection and Labor-Market Outcomes We study a Danish reform in 2002 that lowered the ex-ante probability of refugees receiving permanent residency by prolonging the time period before they were eligible to apply for such residency. Adherence to the new rules was entirely determined by the date of the asylum application and the reform was implemented retroactively. We formulate a simple search and matching model to derive predictions that can be tested using our data. Using registry based data on individuals in Denmark, we then study the effects on educational and labor-market outcomes and find that the reform significantly increased the enrollment in formal education, especially for females and low-skilled individuals. In terms of employment and earnings, the coefficients are in general negative but insignificant. Other outcomes of interest are also studied.

    Risk-sharing and Entrepreneurship We study the role of risk-sharing in facilitating innovation. Studying entrepreneurship and innovation entails modelling an occupational choice and an effort choice. Risk-sharing may increase the number of individuals who become entrepreneurs by limiting the downside risk. The effort of entrepreneurs may, however, be hampered by high risk-sharing if this limits the returns faced by successful entrepreneurs relative to unsuccessful entrepreneurs. We construct a theoretical model where risk-sharing may be private or public, i.e., provided through the welfare state by means of taxation. We show that the level of risk-sharing matters for the characteristics of entrepreneurs. Moreover, high taxes, which imply high equilibrium benefits paid out to entrepreneurs, encourage entrepreneurship but discourage effort.

    Portfolio and Housing Decisions in the Presence of Intergenerational Links There is ample support for the idea that parents matter for the housing market choices of their children. Despite this, our understanding of the effects of these intergenerational links remains limited. I set up a partial equilibrium overlapping generations model with intergenerational links and study housing and portfolio decisions. I use the model to characterize individual behavior, as well as behavioral responses to a change in borrowing conditions. In steady state, the main determinant of both children's and parents' behavior is parental wealth and stricter borrowing conditions have a limited effect. During a transition with positive house price growth, however, the difference between parents who are homeowners and renters (and between their children) is amplified and stricter borrowing conditions have a stronger impact on behavior.

  • Disputas: 2018-09-07 10:00 Ahlmannsalen, Geovetenskapens hus, Stockholm
    Jennische, Ulrik
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Socialantropologiska institutionen.
    Small-Small: Moral Economy and the Marketspace in Northern Ghana2018Doktoravhandling, monografi (Annet vitenskapelig)
    Abstract [en]

    Over the past decade, the Ghanaian government has tried to include and accommodate the many people working in the so-called informal economy. This formalization process is in line with a global market-driven development discourse. The small-scale traders selling their goods from marketplaces and along the streets in major cities have been of particular interest.

    While the Ghanaian government defines these actors as working in an “informal sector” and thus beyond the formal political and economic system, it simultaneously targets them with welfare services and various policies with the purpose of including them in the creation of a modern welfare state and shaping them into moral and entrepreneurial citizens.

    In Tamale in northern Ghana, years of political neglect, violence, and structural adjustment have led to small-scale traders taking over streets, sidewalks, and infrastructure, which has created a boundless and dynamic marketspace that far exceeds the delimited and politically defined marketplaces. For the state, therefore, much of the formalization process is about restoring the control and power of public space through evictions and relocations of traders. In conjunction with the inclusive welfare services, this demonstrates the contradictions entailed in the politics of informality.

    The study is based on an ethnographic fieldwork among small-scale traders in northern Ghana with a specific interest in the events that occur at the intersection where state, market, and citizenship meet. By asking what it means to be a trader in this contradictory process of formalization, the dissertation aims to understand this transformative moment in Ghana’s political and economic history.

    In this study the emic notion of small-small is used to frame the norms of gradual progress and letting others in that define the moral economy of small-scale trade. Norms, values, and obligations generate trust and solidarity within the marketspace. But more than that, small-small produces a form of politics against an obstructive and unreliable state and it guides traders into the future by shaping dreams, aspirations, and possibilities. Situated in traders’ daily lives, work, and relationships, and through the small-small lens, this thesis investigates the underlying moralities of formalization. It describes the politics of the Ghanaian state, which in its attempt to create an inclusive welfare society, struggles to both protect the moral dynamics of small-scale trade while adhering to the norms and standards of an open liberalized economy.

  • Arıs, Ahmet
    et al.
    Istanbul Technical University, Turkey.
    Oktug, Sema F.
    Istanbul Technical University, Turkey.
    Voigt, Thiemo
    RISE - Research Institutes of Sweden, ICT, SICS.
    Security of internet of things for a reliable internet of services2018Inngår i: Part of the Lecture Notes in Computer Science book series (LNCS, volume 10768), 2018, s. 337-370Kapittel i bok, del av antologi (Fagfellevurdert)
    Abstract [en]

    The Internet of Things (IoT) consists of resource-constrained devices (e.g., sensors and actuators) which form low power and lossy networks to connect to the Internet. With billions of devices deployed in various environments, IoT is one of the main building blocks of future Internet of Services (IoS). Limited power, processing, storage and radio dictate extremely efficient usage of these resources to achieve high reliability and availability in IoS. Denial of Service (DoS) and Distributed DoS (DDoS) attacks aim to misuse the resources and cause interruptions, delays, losses and degrade the offered services in IoT. DoS attacks are clearly threats for availability and reliability of IoT, and thus of IoS. For highly reliable and available IoS, such attacks have to be prevented, detected or mitigated autonomously. In this study, we propose a comprehensive investigation of Internet of Things security for reliable Internet of Services. We review the characteristics of IoT environments, cryptography-based security mechanisms and D/DoS attacks targeting IoT networks. In addition to these, we extensively analyze the intrusion detection and mitigation mechanisms proposed for IoT and evaluate them from various points of view. Lastly, we consider and discuss the open issues yet to be researched for more reliable and available IoT and IoS. © The Author(s) 2018.

  • Disputas: 2018-08-29 10:00 Hörsal E, Humanisthuset, Umeå
    Anchev, Stefan
    Umeå universitet, Samhällsvetenskapliga fakulteten, Handelshögskolan vid Umeå universitet, Företagsekonomi.
    Information and financial markets2018Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    The results in this thesis are consistent with the hypotheses that: 1) the incomplete dissemination of information across investors helps in explaining the occurrence and the persistence of cross-sectional stock return anomalies, 2) the properties of the investor base of a stock have implications for the informativeness of the stock's price and 3) a greater quantity of firm disclosure places less sophisticated investors at an information disadvantage. Overall, the thesis provides new empirical evidence about the role of information in financial markets.

    Investor Base and Stock Return Anomalies

    After controlling for market capitalization, the predictability of future stock returns associated with each of the earnings-to-price ratio, the book-to-market ratio, the past return, the total volatility of returns and the return on assets is more pronounced among stocks with smaller total and/or institutional investor bases. These results appear even after controlling for several other stock characteristics and potential risk factors and they are both statistically and economically meaningful. Thus, they are consistent with the hypothesis that the incomplete dissemination of information across investors helps in explaining the occurrence and the persistence of cross-sectional stock return anomalies.

    Investor Base and Stock Price Informativeness

    The relative idiosyncratic volatility of future stock returns is: 1) negatively associated with the absolute size of the total and the institutional investor base, 2) positively associated with the institutional ownership, 3) negatively (positively) associated with the average stock portfolio size (Herfindahl index) of the investor base and 4) positively associated with the indirect (i.e., through nominees) ownership. These results appear after controlling for several other stock characteristics and they are both statistically and economically meaningful. Thus, they are consistent with the hypothesis that the properties of the investor base of a stock have implications for the informativeness of the stock's price.

    Individual Investors and Quantity of Firm Disclosure

    When the amount of information disclosed by a firm is greater (or increases), the stock portfolio weights that individual investors allocate (through trading) to that firm's stock are lower (or decrease) and suboptimal. The former result is less pronounced or nonexistent for more financially competent individuals and for positions in firms with a poorer information environment. When they do allocate greater portfolio weights to the stock of a firm that discloses more, individuals, regardless of their financial competence, earn lower returns. Overall, these results are consistent with the hypothesis that a greater quantity of firm disclosure places less sophisticated investors at an information disadvantage.

  • Sandström, Josef
    Nordiska museet.
    Några drag af öfvertro från Västergötland1908Inngår i: Fataburen – Kulturhistorisk tidskrift, Stockholm: Nordiska museets förlag, 1908, s. 58-61Kapittel i bok, del av antologi (Annet vitenskapelig)
  • Modin, Erik
    Nordiska museet.
    Vårdkasar1908Inngår i: Fataburen – Kulturhistorisk tidskrift, Stockholm: Nordiska museets förlag, 1908, s. 54-58Kapittel i bok, del av antologi (Annet vitenskapelig)
  • Nilsson, Axel
    Nordiska museet.
    Kryptbilderna i Lunds domkyrka1908Inngår i: Fataburen – Kulturhistorisk tidskrift, Stockholm: Nordiska museets förlag, 1908, s. 42-53Kapittel i bok, del av antologi (Annet vitenskapelig)
  • Weibull, Lauritz
    Nordiska museet.
    Den lundensiska Finnsägen1908Inngår i: Fataburen – Kulturhistorisk tidskrift, Stockholm: Nordiska museets förlag, 1908, s. 28-41Kapittel i bok, del av antologi (Annet vitenskapelig)
  • Sydow, C W von
    Nordiska museet.
    Studier i Finnsägen och besläktade byggmästarsägner (3)1908Inngår i: Fataburen – Kulturhistorisk tidskrift, Stockholm: Nordiska museets förlag, 1908, s. 19-27Kapittel i bok, del av antologi (Annet vitenskapelig)
  • Wistrand, Per Gustaf
    Nordiska museet.
    Bohusländska folkdräkter1908Inngår i: Fataburen – Kulturhistorisk tidskrift, Stockholm: Nordiska museets förlag, 1908, s. 1-18Kapittel i bok, del av antologi (Annet vitenskapelig)
  • NN, nn
    Nordiska museet.
    Vargjakt i Kalmar län på 1850- och 1860-talen1907Inngår i: Fataburen – Kulturhistorisk tidskrift, Stockholm: Nordiska museets förlag, 1907, s. 18-22Kapittel i bok, del av antologi (Annet vitenskapelig)
  • Johansson, Joel
    Högskolan i Jönköping, Tekniska Högskolan, JTH. Forskningsmiljö Produktutveckling - Datorstödd konstruktion. Högskolan i Jönköping, Tekniska Högskolan, JTH, Produktutveckling.
    Exploring design content in cad-models and knowledge bases using graph theory and filtering2017Inngår i: Machine Dynamics Research, ISSN 2080-9948, Vol. 41, nr 4, s. 5-15Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This paper focus on what types of relations exist within CAD-models and in KBE-systems connected to them. It describes how engineering knowledge stored in CAD-models and KBEsystems can be analysed through the application of graph theory, visualization and filtering. The paper is organised as follows: First the information models for CAD-models and KBEsystems are introduced and graph theory in connection with these information models is presented. The theory is then applied to a real case which is a CAD-model that was automated using a commercial KBE-system where the number of rules made it hard to engineers to grasp the model. By applying the concepts presented in this paper it was possible to identify critical design parameters and to inspect the logical model of the product.

  • Molinder, Roger
    et al.
    RISE - Research Institutes of Sweden, Bioekonomi, Processum.
    Almqvist, Jonna
    RISE - Research Institutes of Sweden, Bioekonomi, Processum.
    Extractives in theScandinavian pulp and paperindustry : Current and possible future applications2018Rapport (Annet vitenskapelig)
    Abstract [en]

    The forest industry is one of Sweden’s most important business sectors. Thanks to its biobased rawmaterials and products, the forest industry plays a key role in the development towards asustainable, circular economy. To meet market needs, and to drive the growth of the circulareconomy, the forest industry is continually developing its processes and products. It is seeking to useits raw material, the forest, as efficiently as possible and is constantly seeking to improve quality andincorporate new functions into materials and products.Pulp and paper makes up the largest part of the forest industry, followed by sawn wood productsand products made from paper and paperboard. 3.9 million tons of pulp and 10.1 million tons ofpaper were produced in Sweden in 2016.The pulp and paper industry uses stem wood as its raw material. Stem wood consists of cellulose,hemicellulose, lignin, and extractives. Cellulose and hemicellulose are separated in the pulpingprocess and the economically most important components in wood. Lignin and extractives areusually burned to provide the mill with heat and power, but the use/needs has changed over timedue to development of more energy efficient mills. Today lignin is extracted from the black liquor forexternal use, while extractives are fractionated and used for production of a wide range of productssuch as, biodiesel, adhesives, and chemical intermediates.The extractives make up between 3 and 5 weight-% of the wood and consists of a wide range ofcompounds. The majority of those compounds are fatty acids such as oleic- and linoleic acid androsin acids, such as abietic- and pimaric acid. The remaining compounds are commonly referred to as“neutrals” and are dominated by β-sitosterol. The extractives in Scots pine for example, consist of 70% fatty acids, 20 % rosin acids and 5 % neutrals.Today, the extractives are separated at the pulp and paper mills during the regeneration of cookingchemicals into a product called crude tall oil (CTO). 2.5 million metric tons of CTO is producedglobally with 80% of the production situated in North America and Scandinavia. 1.3 million tons isproduced in North America and 600 000 tons is produced in Scandinavia. 2.0 million metric tons iscurrently refined globally, while the rest is used internally by the mills for the production of heat andpower.CTO is currently refined into a range of products which can be divided up into (i) chemicalintermediates, (ii) biodiesel, and (iii) tall oil pitch. The chemical intermediates are mostly used for theproduction of adhesives, while the biodiesel is used as a transport fuel, and the tall oil pitch is usedfor production of heat and power.To meet market needs, and to drive the growth of the circular economy, extractives could potentiallybe used for the production of other products, either through new refinement routes of CTO or novelextraction and separation methods from the raw material. In order to identify opportunities for theproduction of other extractives based products, the extractives value chain must first be mapped.Second, refinement routes as well as extraction and separation methods suitable for isolation andprocessing of valuable compounds must be identified.

  • Cederblom, Gerda
    Nordiska museet.
    Linnedamast i Nordiska Museet1907Inngår i: Fataburen – Kulturhistorisk tidskrift, Stockholm: Nordiska museets förlag, 1907, s. 243-256Kapittel i bok, del av antologi (Annet vitenskapelig)
  • Sumaya, Wael
    et al.
    Univ Sheffield, Dept Infect Immun & Cardiovasc Dis, Beech Hill Rd, Sheffield S10 2RX, S Yorkshire, England..
    Wallentin, Lars
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Kardiologi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Uppsala kliniska forskningscentrum (UCR).
    James, Stefan K.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Kardiologi. Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Uppsala kliniska forskningscentrum (UCR).
    Siegbahn, Agneta
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Uppsala kliniska forskningscentrum (UCR). Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinska vetenskaper, Klinisk kemi.
    Gabrysch, Katja
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Uppsala kliniska forskningscentrum (UCR).
    Bertilsson, Maria
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska och farmaceutiska vetenskapsområdet, centrumbildningar mm, Uppsala kliniska forskningscentrum (UCR).
    Himmelmann, Anders
    AstraZeneca Res & Dev, Gothenburg, Sweden..
    Ajjan, Ramzi A.
    Univ Leeds, Leeds Inst Cardiovasc & Metab Med, Leeds, W Yorkshire, England..
    Storey, Robert F.
    Univ Sheffield, Dept Infect Immun & Cardiovasc Dis, Beech Hill Rd, Sheffield S10 2RX, S Yorkshire, England..
    Fibrin clot properties independently predict adverse clinical outcome following acute coronary syndrome: a PLATO substudy2018Inngår i: European Heart Journal, ISSN 0195-668X, E-ISSN 1522-9645, Vol. 39, nr 13, s. 1078-1085Artikkel i tidsskrift (Annet vitenskapelig)
    Abstract [en]

    Aims To determine whether fibrin clot properties are associated with clinical outcomes following acute coronary syndrome (ACS). Methods and results Plasma samples were collected at hospital discharge from 4354 ACS patients randomized to clopidogrel or ticagrelor in the PLATelet inhibition and patient Outcomes (PLATO) trial. A validated turbidimetric assay was employed to study plasma clot lysis time and maximum turbidity (a measure of clot density). One-year rates of cardiovascular (CV) death, spontaneous myocardial infarction (MI) and PLATO-defined major bleeding events were assessed after sample collection. Hazard ratios (HRs) were estimated using Cox proportional hazards models. After adjusting for CV risk factors, each 50% increase in lysis time was associated with CV death/spontaneous MI [HR 1.17, 95% confidence interval (CI) 1.05-1.31; P < 0.01] and CV death alone (HR 1.36, 95% CI 1.17-1.59; P < 0.001). Similarly, each 50% increase in maximum turbidity was associated with increased risk of CV death (HR 1.24, 95% CI 1.03-1.50; P = 0.024). After adjustment for other prognostic biomarkers (leukocyte count, high-sensitivity C-reactive protein, high-sensitivity troponin T, cystatin C, N-terminal pro B-type natriuretic peptide, and growth differentiation factor15), the association with CV death remained significant for lysis time (HR 1.2, 95% CI 1.01-1.42; P = 0.042) but not for maximum turbidity. These associations were consistent regardless of randomized antiplatelet treatment (all interaction P > 0.05). Neither lysis time nor maximum turbidity was associated with major bleeding events. Conclusion Fibrin clots that are resistant to lysis independently predict adverse outcome in ACS patients. Novel therapies targeting fibrin clot properties might be a new avenue for improving prognosis in patients with ACS.

  • Sjöberg, N
    Nordiska museet.
    Från ett julgille i början av 1500-talet1907Inngår i: Fataburen – Kulturhistorisk tidskrift, Stockholm: Nordiska museets förlag, 1907, s. 241-242Kapittel i bok, del av antologi (Annet vitenskapelig)
  • Lithberg, Nils
    Nordiska museet.
    Gräupacken1907Inngår i: Fataburen – Kulturhistorisk tidskrift, Stockholm: Nordiska museets förlag, 1907, s. 236-241Kapittel i bok, del av antologi (Annet vitenskapelig)
  • Branting, Agnes
    Nordiska museet.
    Medeltida stola med knypplad ornering1907Inngår i: Fataburen - Kulturhistorisk tidskrift, Stockholm: Nordiska museets förlag, 1907, s. 231-235Kapittel i bok, del av antologi (Annet vitenskapelig)
  • Tärnlund, Sten-Åke
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Samhällsvetenskapliga fakulteten, Institutionen för informatik och media.
    P is not equal to NP2018Rapport (Annet vitenskapelig)
    Abstract [en]

    Axiom 1 extends Turing’s, first order, theory of computing, so, computations are proofs in Robinson resolution. Then, SAT is not in P, is proved using Hilbert’s proof theory. Therefore, P is not equal to NP.

  • Lindstrom, Ida
    et al.
    Stockholm Univ, Dept Biochem & Biophys.
    Andersson, Eva
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för medicinsk biokemi och mikrobiologi.
    Dogan, Jakob
    Stockholm Univ, Dept Biochem & Biophys.
    The transition state structure for binding between TAZ1 of CBP and the disordered Hif-1 alpha CAD2018Inngår i: Scientific Reports, ISSN 2045-2322, E-ISSN 2045-2322, Vol. 8, artikkel-id 7872Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Intrinsically disordered proteins (IDPs) are common in eukaryotes. However, relatively few experimental studies have addressed the nature of the rate-limiting transition state for the coupled binding and folding reactions involving IDPs. By using site-directed mutagenesis in combination with kinetics measurements we have here characterized the transition state for binding between the globular TAZ1 domain of CREB binding protein and the intrinsically disordered C-terminal activation domain of Hif-1 alpha (Hif-1 alpha CAD). A total of 17 Hif-1 alpha CAD point-mutations were generated and a F-value binding analysis was carried out. We found that native hydrophobic binding interactions are not formed at the transition state. We also investigated the effect the biologically important Hif-1 alpha CAD Asn-803 hydroxylation has on the binding kinetics, and found that the whole destabilization effect due the hydroxylation is within the dissociation rate constant. Thus, the rate-limiting transition state is "disordered-like", with native hydrophobic binding contacts being formed cooperatively after the rate-limiting barrier, which is clearly shown by linear free energy relationships. The same behavior was observed in a previously characterized TAZ1/IDP interaction, which may suggest common features for the rate-limiting transition state for TAZ1/IDP interactions.

  • Disputas: 2018-09-07 10:15 Häggsalen, Uppsala
    Zhang, Teng
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Fysiska sektionen, Institutionen för fysik och astronomi, Molekyl- och kondenserade materiens fysik.
    Synchrotron Radiation Studies of Molecular Building Blocks for Functional Materials2018Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    The research on new materials is a primary driving force for progress in human society. One of the most significant research topic nowadays is the development of new functional materials for technological applications, like perovskite implemented in solar cells, and graphene as a representative for the new 2D materials family. It is then crucial to fully understand the functionality of such materials from a fundamental point of view, as a complementary and useful guide to develop/design new devices of improved performance and energy efficiency.

    In the thesis, comprehensive characterizations of molecular building blocks used in i) novel energy conversion devices (CoPc, TPA, DPTA and m-MTDATA), and ii) in 2D materials (biphenylene and melamine) have been performed by PhotoElectron Spectroscopy (PES), and Near Edge X-ray Absorption Fine Structure (NEXAFS) spectroscopy carried out at synchrotron radiation facilities, representing effective, powerful light source dedicated to the front-line materials research of great value in both science and industry. PES and NEXAFS spectroscopy, in combination with Density Functional Theory (DFT) calculations have provided a deep understanding of the electronic structure of the investigated systems in relation to their functionality. The investigations always included the combination and comparison between experimental and theoretical results. The studied molecules were characterized as free and adsorbed on surfaces, from the simple building blocks to more complex molecular systems. The characterizations allowed us to identify the electronic structure modifications due to substitutions (Paper III), increasing complexity of the molecules (Paper V), molecule-substrate interactions (Paper I, II, IV, V) and intra-molecular H-bonding interactions (Paper VI).

  • Leijon, Jennifer
    et al.
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Elektricitetslära.
    Boström, Cecilia
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Tekniska sektionen, Institutionen för teknikvetenskaper, Elektricitetslära.
    Freshwater production from the motion of ocean waves - A review2018Inngår i: Desalination, ISSN 0011-9164, E-ISSN 1873-4464, Vol. 435, s. 161-171Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    Freshwater scarcity and insufficient sanitation are global urgent problems, affecting billions of people. In this review paper, the process of desalination powered by wave power has been investigated as a potential sustainable solution to water shortage. The different desalination techniques suitable for this type of combined system, i.e. reverse osmosis, electrodialysis and mechanical vapor compression, have been outlined, as well as the different wave energy converters possible to power the desalination process, i.e. oscillating water columns, oscillating bodies (wave activated bodies) and overtopping systems. Some necessary considerations for this type of project are identified. The different wave power/desalination projects and how they have proceeded are presented. The most common design of a wave energy and desalination system includes a wave activated body to pressurize seawater; the seawater flows through a reverse osmosis membrane, resulting in freshwater. Some successful (freshwater producing) wave energy/desalination projects were identified: Delbuoy, the oscillating water column in Vizhinjam, CETO Freshwater, SAROS and Odyssee. It is concluded that wave power and desalination can be combined in a sustainable and autonomous system, generating freshwater from the ocean waves. However, questions regarding cost of produced water, variations in power production due to intermittency and environmental effects still remain.

  • Disputas: 2018-09-07 10:00 MA624, Huddinge
    Mangold, Marcel
    Södertörns högskola, Institutionen för samhällsvetenskaper, Statsvetenskap.
    Securing the working democracy: Inventive arrangements to guarantee circulation and the emergence of democracy policy2018Doktoravhandling, monografi (Annet vitenskapelig)
    Abstract [en]

    In the 1990s, Swedish democracy's ability to remain strong and renew itself became increasingly questioned in government commission reports and social-scientific writings. The perceptions of the financial crisis in 1992– 1994, new identities, immigration and changes in participation in civic associations and organizations were listed as challenges to democracy. Together, they helped constitute an understanding of an emerging gap between the population and existing representative democratic forms. In response, the 1990s and the first decade of the 2000s saw the emergence of several discourses, political initiatives and scientific contributions that articulated and responded to the need to secure a “working democracy”. By analyzing theoretically the arrangements of elements in policy and in attempts to shape the population's habits, dispositions and behavior, the thesis illuminates the role of aesthetics in the knowledge and power effects of these efforts. Methodologically, the thesis draws on Michel Foucault's genealogical approach in four empirical chapters. In doing so, the thesis displays why, when and how the efforts to secure a working democracy emerged, and analyzes the politics inherent to them. The chapters consist, first, of a study of the birth and changes in “democracy policy” as a distinct political domain; second, a mapping of the emergence of the discourse and dispositif of “valuefoundation”; third, a mapping of the discourse on exclusion and the discourse on and apparatus to combat “violence-promoting extremism”, and, finally, a mapping of inventive approaches in survey research that articulated how to secure a working democracy. This mapping exposes a vision of democratic dis-involvement and how to contain it infused by risk-management, benchmarking and a monitoring of changes in the population. Taken together, the chapters demonstrate the emergence of a complex network of power relations and knowledge used to achieve congruence between the population and governmental aims. This, the thesis underscores, marginalizes the role of dissent and interruptions in democratic life, to instead equate democracy with a system of congruence, smooth interactions and overall alignment to demands on circulation.

  • Benedict, Christian
    et al.
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för neurovetenskap, Funktionell farmakologi.
    Grillo, Claudia A.
    Univ South Carolina, Sch Med, Dept Pharmacol Physiol & Neurosci, Columbia, SC 29208 USA..
    Insulin Resistance as a Therapeutic Target in the Treatment of Alzheimer's Disease: A State-of-the-Art Review2018Inngår i: Frontiers in Neuroscience, ISSN 1662-4548, E-ISSN 1662-453X, Vol. 12, artikkel-id 215Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    Research in animals and humans has shown that type 2 diabetes and its prodromal state, insulin resistance, promote major pathological hallmarks of Alzheimer's disease (AD), such as the formation of amyloid plaques and neurofibrillary tangles (NFT). Worrisomely, dysregulated amyloid beta (A beta) metabolism has also been shown to promote central nervous system insulin resistance; although the role of tau metabolism remains controversial. Collectively, as proposed in this review, these findings suggest the existence of a mechanistic interplay between AD pathogenesis and disrupted insulin signaling. They also provide strong support for the hypothesis that pharmacologically restoring brain insulin signaling could represent a promising strategy to curb the development and progression of AD. In this context, great hopes have been attached to the use of intranasal insulin. This drug delivery method increases cerebrospinal fluid concentrations of insulin in the absence of peripheral side effects, such as hypoglycemia. With this in mind, the present review will also summarize current knowledge on the efficacy of intranasal insulin to mitigate major pathological symptoms of AD, i.e., cognitive impairment and deregulation of A beta and tau metabolism.

  • Lassen, Anne Dahl
    et al.
    Denmark.
    Fagt, Sisse
    Denmark.
    Lennernäs, Maria
    University of Gävle.
    Nyberg, Maria
    Högskolan Kristianstad, Fakulteten för naturvetenskap, Forskningsmiljön Food and Meals in Everyday Life (MEAL). Högskolan Kristianstad, Fakulteten för naturvetenskap, Avdelningen för mat- och måltidsvetenskap.
    Haapalar, Irja
    Finland.
    Thorsen, Anne V
    Denmark.
    Møbjerg, Anna C M
    Denmark.
    Beck, Anne M
    Denmark.
    The impact of worksite interventions promoting healthier food and/or physical activity habits among employees working 'around the clock' hours: a systematic review2018Inngår i: Food & nutrition research, ISSN 1654-661X, Vol. 62Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    We conducted a systematic review of randomised studies on the impact of worksite interventions to promote healthier food and/or physical activity among people who work irregular hours 'around the clock', that is, outside of ordinary daytime working hours. The population-intervention-comparator-outcomes-study (PICOS) design format was used. Data sources were PubMed and CINAHL. An updated search was conducted on October 2017 using Google Scholar and the related articles function in PubMed on initially included studies to identify additional studies. Risk of bias was used to assess study quality. A total of seven studies (reports published in 14 papers) were included in the systematic review: Two interventions with a broader lifestyle approach, three focusing on physical exercise and two on providing healthier food or meal options. The studies had sample sizes from 30 to 1,000 and targeted a mixture of occupations, including both male- and female-dominated occupational groups. The interventions lasted from 2 to 12 months. Only one had an extended follow-up. In general, the studies showed small-to-moderate effect sizes on several measures, including dietary and/or physical activity measures, suggesting acceptable effectiveness for interventions involving community-level behaviour change. Our findings highlight a need to further develop and implement well-designed health promotion interventions with comparable outcome measures and effect size reports. A mixture of health promotion strategies is recommended for future practice in this target population, including individually tailored programmes, improving the food and physical activity environment and using broader lifestyle approaches including the use of participatory and empowerment strategies. While more research is needed in this field, the existing knowledge base on effective approaches awaits translation into practice.

  • Danielsson, Sara
    et al.
    Swedish Museum of Natural History, Department of Environmental Research and Monitoring.
    Bignert, Anders
    Swedish Museum of Natural History, Department of Environmental Research and Monitoring.
    Faxneld, Suzanne
    Swedish Museum of Natural History, Department of Environmental Research and Monitoring.
    Nyberg, Elisabeth
    Swedish Museum of Natural History, Department of Environmental Research and Monitoring.
    Andersson, Mikael
    Swedish Museum of Natural History, Department of Environmental Research and Monitoring.
    Jones, Douglas
    Swedish Museum of Natural History, Department of Environmental Research and Monitoring.
    Kylberg, Eva
    Swedish Museum of Natural History, Department of Environmental Research and Monitoring.
    Strömquist, Jenny
    Swedish Museum of Natural History, Department of Environmental Research and Monitoring.
    Johansson, Ann-Marie
    Department of Environmental Science and Analytical Chemistry, Stockholm University.
    Hjelmquist, Pär
    Department of Environmental Science and Analytical Chemistry, Stockholm University.
    Mechedal, Jan
    Department of Environmental Science and Analytical Chemistry, Stockholm University..
    Sundbom, Marcus
    Department of Environmental Science and Analytical Chemistry, Stockholm University..
    Bizkarguenaga, E
    Department of Environmental Science and Analytical Chemistry, Stockholm University.
    Benskin., Jonathan
    Department of Environmental Science and Analytical Chemistry, Stockholm University.
    de Wit,, Cynthia
    Department of Environmental Science and Analytical Chemistry, Stockholm University.
    Egebäck, Anna-Lena
    Department of Environmental Science and Analytical Chemistry, Stockholm University.
    Eriksson, Ulla
    Department of Environmental Science and Analytical Chemistry, Stockholm University.
    Kruså, Martin
    Department of Environmental Science and Analytical Chemistry, Stockholm University.
    Distribution and conversions of metal-and POP concentrations among various tissues in herring2018Rapport (Annet vitenskapelig)
  • Lusey, Hendrew
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Epidemiologi och global hälsa. Umeå universitet, Medicinska fakulteten, Institutionen för omvårdnad. World Council of Churches, Ecumenical HIV and AIDS Initiative and Advocacy (EHAIA), Kinshasa Gombe, Democratic Republic of Congo.
    San Sebastian, Miguel
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Epidemiologi och global hälsa.
    Christianson, Monica
    Umeå universitet, Medicinska fakulteten, Institutionen för omvårdnad.
    Edin, Kerstin E.
    Umeå universitet, Medicinska fakulteten, Institutionen för omvårdnad.
    Prevalence and correlates of gender inequitable norms among young, church-going women and men in Kinshasa, Democratic Republic of Congo2018Inngår i: BMC Public Health, ISSN 1471-2458, E-ISSN 1471-2458, Vol. 18, artikkel-id 887Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: Prolonged political instability may have exacerbated gender inequitable beliefs in the Democratic Republic of Congo (DRC). The aim of this study was to assess attitudes related to gender-equitable norms and its determinants among young, church-going women and men in Kinshasa, DRC.

    METHOD: Data were collected through a cross-sectional survey with 291 church-going women and 289 men aged 18-24 years old, residing in three disadvantaged communes of Kinshasa. Variables included sociodemographic characteristics, attitudes towards gender equality, and responses to issues related to the gender-equitable men (GEM) scale. The GEM scale is a 24 item-questionnaire developed to measure attitudes towards gender equitable norms. Logistic regression was applied to discover the associations between the independent variables and the GEM outcome.

    RESULTS: Our study reflected the existence of attitudes hampering gender equality that were endorsed by both women and men. For example, 91.4% of women and 83% of men agreed with the statement "a woman's most important role is to take care of her home and cook for her family". Similarly, 88.3% of women and 82.9% of men concurred with the idea that men need more sex than women. These findings coexisted with a few equitable norms, because 93.7% of women and 92.3% of men agreed that a man and a woman should decide together if they want to have children. A positive association was found in both women and men between being educated, being single and separated and having supportive attitudes towards gender equality and a higher GEM scale score. Residency in Camp Luka and Masina was also a significant social determinant associated with equitable gender norms among men whilst job status was only significant among women.

    CONCLUSION: While both women and men had high levels of gender inequitable norms, those with more education, single, and with supportive attitudes to gender equality had high GEM scale scores. The results highlight an urgent need for the church to challenge and change gender norms among church youths.

  • Kien, Vu Duy
    et al.
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Epidemiologi och global hälsa. Oncare Medical Technology Company Limited , Hanoi, Vietnam; Center for Population Health Sciences, Hanoi University of Public Health, Hanoi, Vietnam.
    Van Minh, Hoang
    Giang, Kim Bao
    Ng, Nawi
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Epidemiologi och global hälsa.
    Nguyen, Viet
    Tuan, Le Thanh
    Eriksson, Malin
    Umeå universitet, Medicinska fakulteten, Institutionen för folkhälsa och klinisk medicin, Epidemiologi och global hälsa.
    Views by health professionals on the responsiveness of commune health stations regarding non-communicable diseases in urban Hanoi, Vietnam: a qualitative study2018Inngår i: BMC Health Services Research, ISSN 1472-6963, E-ISSN 1472-6963, Vol. 18, artikkel-id 392Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    BACKGROUND: Primary health care plays an important role in addressing the burden of non-communicable diseases (NCDs) in low- and middle-income countries. In light of the rapid urbanization of Vietnam, this study aims to explore health professionals' views about the responsiveness of primary health care services at commune health stations, particularly regarding the increase of NCDs in urban settings.

    METHODS: This qualitative study was conducted in Hanoi from July to August 2015. We implemented 19 in-depth interviews with health staff at four purposely selected commune health stations and conducted a brief inventory of existing NCD activities at these commune health stations. We also interviewed NCD managers at national, provincial, and district levels. The interview guides reflected six components of the WHO health system framework, including service delivery, health workforce, health information systems, access to essential medicines, financing, and leadership/governance. A thematic analysis approach was applied to analyze the interview data in this study.

    RESULTS: Six themes, related to the six building blocks of the WHO health systems framework, were identified. These themes explored the responsiveness of commune health stations to NCDs in urban Hanoi. Health staff at commune health stations were not aware of the national strategy for NCDs. Health workers noted the lack of NCD informational materials for management and planning. The limited workforce at health commune stations would benefit from more health workers in general and those with NCD-specific training and skills. In addition, the budget for NCDs at commune health stations remains very limited, with large differences in the implementation of national targeted NCD programs. Some commune health stations had no NCD services available, while others had some programming. A lack of NCD treatment drugs was also noted, with a negative impact on the provision of NCD-related services at commune health stations. These themes were also reflected in the inventory of existing NCD related activities.

    CONCLUSIONS: Health professionals view the responsiveness of commune health stations to NCDs in urban Hanoi, Vietnam as weak. Appropriate policies should be implemented to improve the primary health care services on NCDs at commune health stations in urban Hanoi, Vietnam.

  • von Rosen, Tatjana
    et al.
    Department of Statistics, Stockholm University.
    von Rosen, Dietrich
    Linköpings universitet, Matematiska institutionen, Matematisk statistik. Linköpings universitet, Tekniska fakulteten. Department of Energy and Technology, Swedish University of Agricultural Sciences.
    Bilinear regression with rank restrictions on the mean and the dispersion matrix2018Rapport (Annet vitenskapelig)
    Abstract [en]

    A bilinear regression model with rank restrictions imposed on the mean-parameter matrix and on the dispersion matrix is studied. Maximum likelihood inspired estimates are derived. The approach generalizes classical reduced rank regression analysis and principal component analysis. It is shown via a simulation study and a real example that even for small dimensions the method works as well as reduced rank regression analysis whereas the approach in this article also can be used when the dimension is large.

  • Disputas: 2018-09-08 09:00 Room 22-0008, Uppsala
    Basirat, Ali
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för lingvistik och filologi.
    Principal Word Vectors2018Doktoravhandling, monografi (Annet vitenskapelig)
    Abstract [en]

    Word embedding is a technique for associating the words of a language with real-valued vectors, enabling us to use algebraic methods to reason about their semantic and grammatical properties. This thesis introduces a word embedding method called principal word embedding, which makes use of principal component analysis (PCA) to train a set of word embeddings for words of a language. The principal word embedding method involves performing a PCA on a data matrix whose elements are the frequency of seeing words in different contexts. We address two challenges that arise in the application of PCA to create word embeddings. The first challenge is related to the size of the data matrix on which PCA is performed and affects the efficiency of the word embedding method. The data matrix is usually a large matrix that requires a very large amount of memory and CPU time to be processed. The second challenge is related to the distribution of word frequencies in the data matrix and affects the quality of the word embeddings. We provide an extensive study of the distribution of the elements of the data matrix and show that it is unsuitable for PCA in its unmodified form.

    We overcome the two challenges in principal word embedding by using a generalized PCA method. The problem with the size of the data matrix is mitigated by a randomized singular value decomposition (SVD) procedure, which improves the performance of PCA on the data matrix. The data distribution is reshaped by an adaptive transformation function, which makes it more suitable for PCA. These techniques, together with a weighting mechanism that generalizes many different weighting and transformation approaches used in literature, enable the principal word embedding to train high quality word embeddings in an efficient way.

    We also provide a study on how principal word embedding is connected to other word embedding methods. We compare it to a number of word embedding methods and study how the two challenges in principal word embedding are addressed in those methods. We show that the other word embedding methods are closely related to principal word embedding and, in many instances, they can be seen as special cases of it.

    The principal word embeddings are evaluated in both intrinsic and extrinsic ways. The intrinsic evaluations are directed towards the study of the distribution of word vectors. The extrinsic evaluations measure the contribution of principal word embeddings to some standard NLP tasks. The experimental results confirm that the newly proposed features of principal word embedding (i.e., the randomized SVD algorithm, the adaptive transformation function, and the weighting mechanism) are beneficial to the method and lead to significant improvements in the results. A comparison between principal word embedding and other popular word embedding methods shows that, in many instances, the proposed method is able to generate word embeddings that are better than or as good as other word embeddings while being faster than several popular word embedding methods.

  • Barenfeld, Emmelie
    et al.
    Dahlin-Ivanoff, Synneve
    Wallin, Lars
    Högskolan Dalarna, Akademin Utbildning, hälsa och samhälle, Omvårdnad. Karolinska institutet; Göteborgs universitet.
    Gustafsson, Susanne
    Promoting aging migrants' capabilities: A randomized controlled trial concerning activities of daily living and self-rated health.2018Inngår i: AIMS public health, ISSN 2327-8994, Vol. 5, nr 2, s. 173-188Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The aim was to evaluate the 6-month and 1-year effects of a person-centered group-based health-promoting intervention on independence in daily activities and self-rated health. The study was an RCT with follow-ups at 6 months and 1 year. A total of 131 independent living people (70+) who have migrated to Sweden from Finland or Western Balkan region were included. Participants were independent in activities of daily living and cognitively intact. They were randomized to an intervention group receiving four weekly group-meetings and a follow-up home visit, or a control group (no intervention). An overall chi-squared test was performed and the odds ratio calculated. A high proportion of the participants maintained independence in activities of daily living and improved or maintained self-rated health. However, no significant differences were found between the groups. The result indicates that the intervention was offered too early in the aging process to be able to detect effects. Methodological challenges were met during both the recruitment and implementation phases. In response to lessons learned, a multicenter design is recommended for future research in order to strengthen the findings. Furthermore, this study has contributed with experiences on both opportunities and challenges in terms of research with and about older people aging in the context of migration, as is discussed.

  • Makenzius, Marlene
    et al.
    Faxelid, Elisabeth
    Gemzell-Danielsson, Kristina
    Odero, Theresa M A
    Klingberg-Allvin, Marie
    Högskolan Dalarna, Akademin Utbildning, hälsa och samhälle, Omvårdnad. Karolinska institutet.
    Oguttu, Monica
    Contraceptive uptake in post abortion care-Secondary outcomes from a randomised controlled trial, Kisumu, Kenya.2018Inngår i: PLoS ONE, ISSN 1932-6203, E-ISSN 1932-6203, Vol. 13, nr 8, artikkel-id e0201214Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    AIM: The aim was to explore contraceptive uptake, associated factors and satisfaction among post abortion-care (PAC) seeking women in Kenya. Due to unsafe abortions, almost 120 000 Kenyan women received PAC in 2012, and of these women, 70% did not use contraception before pregnancy.

    METHODS: This study was nested in a larger randomised controlled trial, where 859 women sought PAC at two public hospitals in Kisumu, in June 2013-May 2016. The women were randomly assigned to a midwife or a physician for PAC, including contraceptive counselling, and followed up at 7-10 days and three months. Associated factors for contraceptive uptake were analysed with binary logistic regression, and contraceptive method choice, adherence and satisfaction level were examined by descriptive statistics, using IBM SPSS Statistics for Windows, Version 22.0.

    RESULTS: Out of the 810 PAC-seeking women, 76% (n = 609) accepted the use of contraception. Age groups of 21-25 (OR: 2.35; p < 0.029) and 26-30 (OR: 2.22; p < 0.038), and previous experience of 1-2 gravidities (OR 1.939; p = 0.018) were independent factors associated with the up-take. Methods used: injections 39% (n = 236); pills 27% (n = 166); condoms 25% (n = 151); implant 7% (n = 45) and intrauterine device (IUD) 1% (n = 8). At 3-month follow-up of the women (470/609; 77%), 354 (75%) women still used contraception, and most (n = 332; 94%) were satisfied with the method. Reasons for discontinuation were side-effects (n = 44; 39%), partner refusal (n = 27; 24%), planned pregnancy (n = 27; 24%) and lack of resupplies (n = 15; 13%).

    CONCLUSIONS: PAC-seeking women seem highly motivated to use contraceptives, yet a quarter decline the use, and at 3-month follow-up a further quarter among the users had discontinued. Implant, IUD and permanent method are rarely used. Strategies to improve contraceptive counselling, particularly to adolescent girls, and to increase access to a wide range of methods, as well as provider training and supervision may help to improve contraceptive acceptance and compliance among PAC-seeking women in Kisumu, Kenya.

  • Recensioner2017Inngår i: Fornvännen, ISSN 0015-7813, E-ISSN 1404-9430, Vol. 112, nr 4, s. 260-276Artikkel i tidsskrift (Annet vitenskapelig)
  • Ramberg, Joacim
    et al.
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Specialpedagogiska institutionen. Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för folkhälsovetenskap.
    Brolin Låftman, Sara
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för folkhälsovetenskap.
    Fransson, Emma
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för folkhälsovetenskap.
    Modin, Bitte
    Stockholms universitet, Samhällsvetenskapliga fakulteten, Institutionen för folkhälsovetenskap.
    School effectiveness and truancy: a multilevel study of upper secondary schools in Stockholm2018Inngår i: International Journal of Adolescence and Youth, ISSN 0267-3843, E-ISSN 2164-4527Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    Truancy is a problem associated with a range of negative consequences at the individual and societal level, both in the short and the long term. Few earlier studies have investigated the association between school effectiveness and truancy. The aim of this study is to examine the links between three teacher-rated features of school effectiveness – school leadership, teacher cooperation and consensus, and school ethos – and student-reported truancy. Data were collected in 2016 among 4,956 students and 1,045 teachers in 46 upper secondary schools in Stockholm. Results from two-level binary logistic regression analyses show that higher teacher ratings of the school leadership and of the school ethos (but not of teacher cooperation and consensus) are associated with a lower likelihood of truancy at the student-level, even when adjusting for student- and school-level sociodemographic characteristics. The findings indicate that effective school characteristics may contribute to reducing students’ inclination to play truant.

  • Disputas: 2018-09-21 10:00 B1014, Jönköping
    Gustafsson, Anders
    Högskolan i Jönköping, Internationella Handelshögskolan, IHH, Nationalekonomi.
    Industrial policy: Political considerations, payoffs, and peculiar incentives2018Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    This thesis consists of four independent papers. They deal with some aspects of industrial policy, namely public supports to firms that are intended to support innovation and growth at the firm level, using Swedish data. Two papers study the efficiency of current Swedish policies by estimating the effects of subsidies and public loans to firms, respectively.

    The results on subsidized firms suggests that there are some positive effects on profits and productivity, but these diminish and disappear over time. The results of public loans are more positive with long lasting effects on productivity and sales but only for smaller firms. Public loans do not lead to an increase in the number of employees in the firms that receive them.

    The third paper studies the selection of firms for subsidies and the incentives firms have to seek them. By modeling the decision to seek subsidies as a trade off between producing in the market and seeking grants, the results suggest that firms with low market productivity might self-select into seeking grants. The empirical results are in line with the theoretical predictions.

    The final paper studies the incentives that politicians have to implement programs and policies that they know will be inefficient. Since a lack of political action can make the politicians look incompetent, incumbentens have incentives to implement policies even though they know that these will be ineffective, to signal competence towards the voters.

  • Idevall Hagren, Karin
    Uppsala universitet, Humanistisk-samhällsvetenskapliga vetenskapsområdet, Språkvetenskapliga fakulteten, Institutionen för nordiska språk.
    Aktör-nätverksteori och kritiska textanalyser: En diskussion om teori, metod och tillämpning2018Inngår i: Kritiska text- och diskursstudier / [ed] Wojahn, Daniel, Seiler Brylla, Charlotta & Westberg, Gustav, Huddinge: Södertörns högskola, 2018, s. 81-100Kapittel i bok, del av antologi (Fagfellevurdert)
    Abstract [en]

    Actor-network theory (ANT) offers an approach to study how social phenomena and relations are developed and come to matter. ANT objects to using theory as an explanatory framework, within which empirics is added and shaped. ANT claims that theoretical presumptions should not be the starting point for critic, but rather that critique is an effect of close deployment of empirical data. This article aims to read ANT from a critical linguistics’ perspective in order to discuss how ANT can bring new perspectives on the social to linguistics, and offer concepts and tools for critical text analysis. The article introduces ANT’s ontology and epistemology as well as the theoretical perspectives derived from them. Furthermore, the article deals with ANT as a critical approach. Two analytical studies of language and racism are introduced to illustrate how linguists can benefit from using ANT, including concepts like black box, punctualizationand translation.

  • Källström, Magnus
    Runorna på vinden i Marums kyrka, Västergötland2017Inngår i: Fornvännen, ISSN 0015-7813, E-ISSN 1404-9430, Vol. 112, nr 4, s. 252-256Artikkel i tidsskrift (Annet vitenskapelig)
  • Kubin, Markus
    et al.
    Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany.
    Kern, Jan
    Lawrence Berkeley National Laboratory, Berkeley, USA.
    Guo, Meiyuan
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Teoretisk kemi.
    Källman, Erik
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Teoretisk kemi.
    Mitzner, Rolf
    Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany.
    Yachandra, Vittal K.
    Lawrence Berkeley National Laboratory, Berkeley, USA.
    Lundberg, Marcus
    Uppsala universitet, Teknisk-naturvetenskapliga vetenskapsområdet, Kemiska sektionen, Institutionen för kemi - Ångström, Teoretisk kemi.
    Yano, Junko
    Lawrence Berkeley National Laboratory, Berkeley, USA.
    Wernet, Philippe
    Institute for Methods and Instrumentation for Synchrotron Radiation Research, Helmholtz-Zentrum Berlin für Materialien und Energie GmbH, Berlin, Germany.
    X-ray-induced sample damage at the Mn L-edge: a case study for soft X-ray spectroscopy of transition metal complexes in solution2018Inngår i: Physical Chemistry, Chemical Physics - PCCP, ISSN 1463-9076, E-ISSN 1463-9084, Vol. 20, nr 24, s. 16817-16827Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    X-ray induced sample damage can impede electronic and structural investigations of radiation-sensitive samples studied with X-rays. Here we quantify dose-dependent sample damage to the prototypical Mn-III(acac)(3) complex in solution and at room temperature for the soft X-ray range, using X-ray absorption spectroscopy at the Mn L-edge. We observe the appearance of a reduced Mn-II species as the X-ray dose is increased. We find a half-damage dose of 1.6 MGy and quantify a spectroscopically tolerable dose on the order of 0.3 MGy (1 Gy = 1 J kg(-1)), where 90% of Mn-III(acac)(3) are intact. Our dose-limit is around one order of magnitude lower than the Henderson limit (half-damage dose of 20 MGy) which is commonly employed for protein crystallography with hard X-rays. It is comparable, however, to the dose-limits obtained for collecting un-damaged Mn K-edge spectra of the photosystem II protein, using hard X-rays. The dose-dependent reduction of Mn-III observed here for solution samples occurs at a dose limit that is two to four orders of magnitude smaller than the dose limits previously reported for soft X-ray spectroscopy of iron samples in the solid phase. We compare our measured to calculated spectra from ab initio restricted active space (RAS) theory and discuss possible mechanisms for the observed dose-dependent damage of Mn-III(acac)(3) in solution. On the basis of our results, we assess the influence of sample damage in other experimental studies with soft X-rays from storage-ring synchrotron radiation sources and X-ray free-electron lasers.

  • Aadland, Reidun C.
    et al.
    Norwegian University of Science and Technology (NTNU), Norway.
    Dziuba, Carter J.
    University of Calgary, Canada.
    Heggset, Ellinor B.
    RISE - Research Institutes of Sweden, Bioekonomi, PFI.
    Syverud, Kristin
    RISE - Research Institutes of Sweden, Bioekonomi, PFI.
    Torsæter, Ole
    Norwegian University of Science and Technology (NTNU), Norway.
    Holt, Thorleif
    SINTEF, Norway.
    Gates, Ian D.
    University of Calgary, Canada.
    Bryant, Steven L.
    University of Calgary, Canada.
    Identification of nanocellulose retention characteristics in porous media2018Inngår i: Nanomaterials, ISSN 2079-4991, Vol. 8, nr 7, artikkel-id 547Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    The application of nanotechnology to the petroleum industry has sparked recent interest in increasing oil recovery, while reducing environmental impact. Nanocellulose is an emerging nanoparticle that is derived from trees or waste stream from wood and fiber industries. Thus, it is taken from a renewable and sustainable source, and could therefore serve as a good alternative to current Enhanced Oil Recovery (EOR) technologies. However, before nanocellulose can be applied as an EOR technique, further understanding of its transport behavior and retention in porous media is required. The research documented in this paper examines retention mechanisms that occur during nanocellulose transport. In a series of experiments, nanocellulose particles dispersed in brine were injected into sandpacks and Berea sandstone cores. The resulting retention and permeability reduction were measured. The experimental parameters that were varied include sand grain size, nanocellulose type, salinity, and flow rate. Under low salinity conditions, the dominant retention mechanism was adsorption and when salinity was increased, the dominant retention mechanism shifted towards log-jamming. Retention and permeability reduction increased as grain size decreased, which results from increased straining of nanocellulose aggregates. In addition, each type of nanocellulose was found to have significantly different transport properties. Experiments with Berea sandstone cores indicate that some pore volume was inaccessible to the nanocellulose. As a general trend, the larger the size of aggregates in bulk solution, the greater the observed retention and permeability reduction. Salinity was found to be the most important parameter affecting transport. Increased salinity caused additional aggregation, which led to increased straining and filter cake formation. Higher flow rates were found to reduce retention and permeability reduction. Increased velocity was accompanied by an increase in shear, which is believed to promote breakdown of nanocellulose aggregates. © 2018 by the authors.

  • Disputas: 2018-08-17 10:00 B1014, Jönköping
    Rukundo, Johnson Bosco
    Högskolan i Jönköping, Internationella Handelshögskolan, IHH, Nationalekonomi.
    Employment, Competition and Firm Performance: A Sub-Saharan Africa Perspective2018Doktoravhandling, med artikler (Annet vitenskapelig)
    Abstract [en]

    This thesis addresses employment, competition and firm performance with a focus on Sub-Saharan Africa. The thesis consists of three individual papers and an introductory chapter. The purpose of each paper is to analyze firm performance. The main region of interest is Sub-Saharan Africa where countries in this part of the world are at lower levels of economic development and have experienced economic transition and strong firm investments. The papers contribute to existing industrial organization research by studying the effects of competition on R&D, effects of firm performance on innovation, and the determinants of informal employment and monthly wage earnings.

    The first paper focuses on firm performance which is found to affect firm innovation positively. This suggests that a firm’s decision regarding the scope of its total sales impacts its innovation capabilities. The second paper investigates the relationship between competition, R&D expenditure and innovation. It is found that a firm’s research efforts increase with an increase in levels of competition but at a diminishing rate confirming a non-linear, inverted-U relationship between competition and research expenditures. The third paper analyzes what determines informal employment and monthly wage earnings in formal firms. The results show that marginal benefit of higher education is lower for informal employees and that returns on education are much higher for workers with higher education.

  • Rukundo, Johnson Bosco
    Högskolan i Jönköping, Internationella Handelshögskolan, IHH, Nationalekonomi. Department of Economics, College of Business and Economics, University of Rwanda, Kigali, Rwanda.
    Firm Performance And Innovation In The Developing Countries: Evidence From Firm-Level Survey2017Inngår i: Corporate Ownership & Control, ISSN 1727-9232, E-ISSN 1810-3057, Vol. 15, nr 1, s. 235-245Artikkel i tidsskrift (Fagfellevurdert)
    Abstract [en]

    This paper investigates the relationship between firm performance and innovation in developing countries using micro data from enterprise surveys. The purpose is to empirically test the importance of firm performance in terms of sales, for a firm’s proneness to innovate specifically in developing countries. A two-stage least squares (2SLS) model is applied to a sample of 2356 firms from the manufacturing and service sectors. Results show that firm performance, defined as sales, is found to be a significant factor contributing to innovation among firms. This relationship holds in manufacturing firms even when distinguished from the services sector. The findings underline the importance of firms’ performance through increased sales. The paper adds to the existing limited research literature on performance and innovation studies in developing countries especially Africa. The paper results differ from previous research studies where focus has been on innovation impact towards performance. As a policy option, developing countries need to improve and promote an increase in firms’ sales that would spur them to introduce a new or substantially improved product or process.

  • Huang, Hongyun
    et al.
    Gen Hosp Armed Police Forces, Inst Neurorestoratol, Beijing 100039, Peoples R China..
    Young, Wise
    Rutgers State Univ, WM Keck Ctr Collaborat Neurosci, Piscataway, NJ USA..
    Chen, Lin
    Tsinghua Univ, Dept Neurosurg, Yuquan Hosp, Beijing, Peoples R China..
    Feng, Shiqing
    Tianjin Med Univ, Dept Orthopaed, Gen Hosp, Tianjin, Peoples R China..
    Al Zoubi, Ziad M.
    Al Saif Med Ctr, Jordan Ortho & Spinal Ctr, Amman, Jordan..
    Sharma, Hari Shanker
    Uppsala universitet, Medicinska och farmaceutiska vetenskapsområdet, Medicinska fakulteten, Institutionen för kirurgiska vetenskaper, Anestesiologi och intensivvård.
    Saberi, Hooshang
    Univ Tehran Med Sci, Dept Neurosurg, Brain & Spinal Injury Res Ctr, Tehran, Iran..
    Moviglia, Gustavo A.
    Maimonides Univ, Ctr Res & Engn Tissues & Cellular Therapy, Buenos Aires, DF, Argentina..
    He, Xijing
    Xi An Jiao Tong Univ, Dept Orthopaed, Affiliated Hosp 2, Xian, Shaanxi, Peoples R China..
    Muresanu, Dafin F.
    Univ Med & Pharm, Dept Neurosci Iuliu Hatieganu, Cluj Napoca, Romania..
    Sharma, Alok
    LTMG Hosp, LTM Med Coll, Dept Neurosurg, Bombay, Maharashtra, India..
    Otom, Ali
    King Hussein Med Ctr RJRC Amman, Royal Rehabil Ctr, Amman, Jordan..
    Andrews, Russell J.
    NASA, Nanotechnol & Smart Syst, Ames Res Ctr, Silicon Valley, CA USA..
    Al-Zoubi, Adeeb
    Univ Illinois, Coll Med Peoria, Peoria, IL USA..
    Bryukhovetskiy, Andrey S.
    NeuroVita Clin Intervent & Restorat Neurol & Ther, Moscow, Russia..
    Chernykh, Elena R.
    Inst Fundamental & Clin Immunol, Lab Cellular Immunotherapy, Novosibirsk, Russia..
    Domanska-Janik, Krystyna
    Mossakowski Med Res Ctr, Stem Cell Bioengn Unit, Warsaw, Poland..
    Jafar, Emad
    Al Saif Med Ctr, Jordan Ortho & Spinal Ctr, Amman, Jordan..
    Johnson, W. Eustace
    Univ Chester, Fac Med Dent & Life Sci, Stem Cells & Regenerat Biol, Chester, Cheshire, England..
    Li, Ying
    UCL Inst Neurol, Dept Brain Repair & Rehabil, Spinal Repair Unit, London, England..
    Li, Daqing
    UCL Inst Neurol, Dept Brain Repair & Rehabil, Spinal Repair Unit, London, England..
    Luan, Zuo
    Navy Gen Hosp PLA, Dept Pediat, Beijing, Peoples R China..
    Mao, Gengsheng
    Gen Hosp Armed Police Forces, Inst Neurorestoratol, Beijing 100039, Peoples R China..
    Shetty, Ashok K.
    Texas A&M Hlth Sci Ctr, Coll Med, Inst Regenerat Med, Dept Mol & Cellular Med, College Stn, TX USA..
    Siniscalco, Dario
    Univ Campania Luigi Vanvitelli, Dept Expt Med, Naples, Italy..
    Skaper, Stephen
    Univ Padua, Dept Pharmaceut & Pharmacol Sci, Padua, Italy..
    Sun, Tiansheng
    PLA Army Gen Hosp, Dept Orthoped, Beijing, Peoples R China..
    Wang, Yunliang
    148th Hosp, Dept Neurol, Zibo, Shandong, Peoples R China..
    Wiklund, Lars
    Umea Univ, Dept Pharmacol & Clin Neurosci, Unit Neurol, Umea, Sweden..
    Xue, Qun
    Soochow Univ, Dept Neurol, Affiliated Hosp 1, Suzhou, Jiangsu, Peoples R China..
    You, Si-Wei
    Fourth Mil Med Univ, Xijing Hosp, Dept Ophthalmol, Xian, Shaanxi, Peoples R China..
    Zheng, Zuncheng
    Cent Hosp Taian, Dept Rehabil Med, Tai An, Shandong, Peoples R China..
    Dimitrijevic, Milan R.
    Baylor Coll Med, Houston, TX 77030 USA..
    El Masri, W. S.
    Robert Jones & Agnes Hunt Orthopaed Hosp, Spinal Injuries Unit, Oswestry, Shrops, England..
    Sanberg, Paul R.
    Univ S Florida, Morsani Coll Med, Ctr Excellence Aging Brain Repair, Tampa, FL USA..
    Xu, Qunyuan
    Capital Med Univ, Inst Neurosci, Beijing, Peoples R China..
    Luan, Guoming
    Capital Med Univ, Beijing Sanbo Brain Hosp, Dept Neurosurg, Beijing, Peoples R China..
    Chopp, Michael
    Henry Ford Hlth Syst, Henry Ford Hosp, Neurol Res, Detroit, MI USA..
    Cho, Kyoung-Suok
    Catholic Univ Korea, Uijongbu St Marys Hosp, Coll Med, Dept Neurosurg, Uijongbu, South Korea..
    Zhou, Xin-Fu
    Univ South Australia, Sansom Inst Hlth Res, Sch Pharm & Med Sci, Div Hlth Sci, Adelaide, SA, Australia..
    Wu, Ping
    Univ Texas Med Branch, Dept Neurosci & Cell Biol, Galveston, TX 77555 USA..
    Liu, Kai
    Hong Kong Univ Sci & Technol, Div Life Sci, Kowloon, Hong Kong, Peoples R China..
    Mobasheri, Hamid
    Univ Tehran, Inst Biochem & Biophys, Res Ctr, Tehran, Iran..
    Ohtori, Seiji
    Chiba Univ, Grad Sch Med, Dept Orthoped Surg, Chiba, Japan..
    Tanaka, Hiroyuki
    Osaka Univ, Grad Sch Med, Dept Orthopaed Surg, Osaka, Japan..
    Han, Fabin
    Liaocheng Univ, Ctr Stem Cells & Regenerat Med, Liaocheng Peoples Hosp, Liaocheng, Shandong, Peoples R China..
    Feng, Yaping
    Kunming Gen Hosp Chengdu Mil Command Chinese PLA, Dept Neurosurg, Kunming, Yunnan, Peoples R China..
    Zhang, Shaocheng
    Second Mil Med Univ, Changhai Hosp, Dept Orthoped, Shanghai, Peoples R China..
    Lu, Yingjie
    Chengde Dadu Hosp, Dept Neurosurg, Weichang, Hebei, Peoples R China..
    Zhang, Zhicheng
    PLA Army Gen Hosp, Dept Orthoped, Beijing, Peoples R China..
    Rao, Yaojian
    Luoyang Orthoped Hosp Henan Prov, Dept Neurosurg, Luoyang, Henan, Peoples R China..
    Tang, Zhouping
    Tongji Hosp, Tongji Med Coll HUST, Dept Neurol, Wuhan, Hubei, Peoples R China..
    Xi, Haitao
    Capital Med Univ, Dept Neurol, Beijing Rehabil Hosp, Beijing, Peoples R China..
    Wu, Liang
    Beijing Xiaotangshan Rehabil Hosp, Ctr Rehabil, Beijing, Peoples R China..
    Shen, Shunji
    Weihai Municipal Hosp, Dept Rehabil, Weihai, Shandong, Peoples R China..
    Xue, Mengzhou
    Zhengzhou Univ, Dept Neurorehabil, Affiliated Hosp 2, Zhengzhou, Henan, Peoples R China..
    Xiang, Guanghong
    Brain Hosp Hunan Prov, Changsha, Hunan, Peoples R China..
    Guo, Xiaoling
    PLA Army 266 Hosp, Dept Neurol, Chengde, Hebei, Peoples R China..
    Yang, Xiaofeng
    Zhejiang Univ, Dept Neurosurg, Coll Med, Affiliated Hosp 1, Hangzhou, Zhejiang, Peoples R China..
    Hao, Yujun
    Xinjiang Med Univ, Dept Neurosurg, Affiliated Hosp 1, Urumqi, Xinjiang, Peoples R China..
    Hu, Yong
    Univ Hong Kong, Dept Orthopaed & Traumatol, Pokfulam, Hong Kong, Peoples R China..
    Li, Jinfeng
    Umea Univ, Dept Pharmacol & Clin Neurosci, Unit Neurol, Umea, Sweden..
    Ao, Qiang
    China Med Univ, Dept Tissue Engn, Shenyang, Liaoning, Peoples R China..
    Wang, Bin
    Guangzhou Med Univ, Dept Traumatol, Affiliated Hosp 2, Guangzhou, Guangdong, Peoples R China..
    Zhang, Zhiwen
    Chinese Peoples Liberat Army Gen Hosp, Dept Neurosurg, Affiliated Hosp 1, Beijing, Peoples R China..
    Lu, Ming
    Hunan Normal Univ, Dept Neurosurg, Affiliated Hosp 2, Hosp PLA 163, Changsha, Hunan, Peoples R China..
    Li, Tong
    Xinxiang Med Univ, Dept Neurol, Affiliated Hosp 2, Xinxiang, Henan, Peoples R China..
    Clinical Cell Therapy Guidelines for Neurorestoration (IANR/CANR 2017)2018Inngår i: Cell Transplantation, ISSN 0963-6897, E-ISSN 1555-3892, Vol. 27, nr 2, s. 310-324Artikkel, forskningsoversikt (Fagfellevurdert)
    Abstract [en]

    Cell therapy has been shown to be a key clinical therapeutic option for central nervous system diseases or damage. Standardization of clinical cell therapy procedures is an important task for professional associations devoted to cell therapy. The Chinese Branch of the International Association of Neurorestoratology (IANR) completed the first set of guidelines governing the clinical application of neurorestoration in 2011. The IANR and the Chinese Association of Neurorestoratology (CANR) collaborated to propose the current version "Clinical Cell Therapy Guidelines for Neurorestoration (IANR/CANR 2017)". The IANR council board members and CANR committee members approved this proposal on September 1, 2016, and recommend it to clinical practitioners of cellular therapy. These guidelines include items of cell type nomenclature, cell quality control, minimal suggested cell doses, patient-informed consent, indications for undergoing cell therapy, contraindications for undergoing cell therapy, documentation of procedure and therapy, safety evaluation, efficacy evaluation, policy of repeated treatments, do not charge patients for unproven therapies, basic principles of cell therapy, and publishing responsibility.

  • Nord, Anders G.
    et al.
    Tronner, Kate
    Malmberg, Mattias
    Pigmentanalys av bemålade brädor från Björsäters stavkyrka i Östergötland2017Inngår i: Fornvännen, ISSN 1404-9430, Vol. 112, nr 4, s. 257-259Artikkel i tidsskrift (Annet vitenskapelig)