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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
141

Entwicklung eines Schutzfaktorenmodells für die Hochschulausbildung – Untersuchung der hochschulseitigen Einflussfaktoren auf die Resilienz von Studierenden vor dem Hintergrund der Bologna-Zielsetzung der Beschäftigungsfähigkeit

Nicolaus, Meike 25 April 2023 (has links)
Diese Arbeit beschäftigt sich mit dem Thema Resilienzförderung im Hochschulkontext vor dem Hintergrund der Bologna-Zielsetzung 'Beschäftigungsfähigkeit'. Resilienz als notwendige Kompetenz von Fach- und Führungskräften und deren Entwicklung dient im Verständnis der Autorin der Erhöhung der Beschäftigungsfähigkeit von Absolvent*innen. Die Resilienzforschung im Hochschulkontext ist ein sehr junges Forschungsfeld, es finden sich Studien über Resilienzfaktoren im nationalen und internationalen Kontext, ein Schutzfaktorenmodell fehlte bislang. Diese Dissertation beschäftigt sich mit der Entwicklung eines solchen Schutzfaktorenmodells für die Hochschulausbildung. Hierzu wurde im Rahmen einer mehrphasigen Mixed-Methods-Studie ein konzeptuelles Modell entwickelt und überprüft. Die Modellierung erfolgte mittels PLS-Strukturgleichungsmodellierung. Die Ergebnisse zeigen die Bedeutung einzelner Faktoren als individuelle und hochschulseitige Schutzfaktoren auf. Zusammenhänge zwischen individuellen und hochschulseitigen Schutzfaktoren, personalen, sozialen und methodischen Kompetenzen und der Resilienz werden deutlich. Es zeigt sich die Bedeutung von personalen, sozialen und methodischen Kompetenzen als Mediator zur Resilienzentwicklung. Die Ergebnisse ermöglichen eine Systematisierung der Resilienzförderung im Hochschulkontext mit Schwerpunkt Wirtschaftswissenschaften.:DANKSAGUNG III EXTENDED ABSTRACT IV ABKÜRZUNGSVERZEICHNIS ALLGEMEIN VIII ABKÜRZUNGSVERZEICHNIS HCM IX ABBILDUNGSVERZEICHNIS XI TABELLENVERZEICHNIS XII 1 EINLEITUNG 1 1.1 Kontext und Problemstellung 1 1.2 Motivation 2 1.3 Zielsetzung und forschungsleitende Fragen 3 2 RESILIENZFORSCHUNG IM HOCHSCHULKONTEXT 7 2.1 Bologna-Erklärung, Employability und die Bedeutung von Resilienz 7 2.2 Resilienz und das Modell der Risiko- und Schutzfaktoren 11 2.3 Überblick über die Resilienzforschung im Hochschulkontext 14 3 EMPIRISCHE STUDIE IM SEQUENZIELLEN MIXED METHODS DESIGN ZUR ENTWICKLUNG EINES SCHUTZFAKTORENMODELLS IM HOCHSCHULKONTEXT 17 3.1 Forschungsparadigma und Forschungsdesigns 17 3.2 Datenerhebung und Datenauswertung der Teilstudien 21 3.2.1 Stichprobenbildung 21 3.2.2 Studien qual I und qual II 23 3.2.3 Studie QUANT 26 3.3 Zusammenführung der Ergebnisse 29 3.3.1 Beitrag A: Systematischer Literaturüberblick und initiales Schutzfaktorenmodell 30 3.3.2 Beitrag B: Ergänzende Schutzfaktoren aus dem Hochschulkontext 31 3.3.3 Beitrag C: Ergänzende Schutzfaktoren aus dem Arbeitskontext 33 3.3.4 Beitrag D: Entwicklung des Schutzfaktorenmodells mittels PLS-SEM 35 4 ZUSAMMENFASSUNG 45 4.1 Kritische Würdigung 45 4.2 Implikationen 47 4.3 Ausblick und Forschungsbedarf 49 CHRONOLOGIE DER PUBLIKATIONEN 52 Beitrag A 54 Beitrag B 69 Beitrag C 96 Beitrag D 114 LITERATURVERZEICHNIS XIII
142

Improving business performance with organizational learning : A case study of factors affecting organizational learning and its relationship with business performance / Förbättra företagets resultat med organisatoriskt lärande : En fallstudie med fokus på faktorer som påverkar organisatoriskt lärande och dess relation med organisationens

BENGTSSON, LUDVIG, SKOG, PONTUS January 2018 (has links)
This thesis is an intra-organizational case study which investigates the concept of organizational learning and its relationship with business performance. Furthermore, factors affecting organizational learning are explored. A mixed method approach is used, combining quantitative data from a survey instrument called the Strategic Learning Assessment Map (SLAM) with qualitative data from interviews and observations. This thesis shows that at the studied organization the organizational level knowledge stock has the highest association with business performance, followed by the group level knowledge stock. The individual level knowledge stock and misalignment does not achieve reasonable significance. When it comes to factors affecting organizational learning, Organizational culture and information processing capacity were identified as main barriers. Furthermore, individuals at the targeted organization acquire knowledge in informal ways and they learn routines over heuristics which also were identified as main factors affecting business performance. / Detta är en fallstudie med fokus på att undersöka konceptet organisatoriskt lärande och dess relation till företagets resultat. Faktorer som påverkar organisatoriskt lärande är även undersökt. En kombinerad kvalitativ och kvantitativ metod är använd i rapporten. Kvantitativ data är insamlad genom frågeformuläret Strategic Learning Assessment Map (SLAM) och kvalitativ data är insamlad genom intervjuer och observationer. Resultatet från studien är att den organisatoriska kunskapsnivån har störst påverkan på företagets resultat följt av gruppnivån som även har en betydande påverkan på företagets resultat. Den individuella kunskapsnivån och ojämnheter i det organisatoriska lärandet uppnår inte en tillräckligt hög nivå av signifikans. Företagskultur och informationskapacitet är identifierade som de två största barriärerna till organisatoriskt lärande. Individer på organisationen lär sig informellt och i större utsträckning rutiner över regler.
143

Sociala faktorers påverkan på köpintention : En kvantitativ undersökning på hedoniskt värde inom spelet League of Legends

Ortega Jönsson, Veronica, Tyssling Engström, Emil January 2023 (has links)
Flera olika typer av virtuella produkter växer i popularitet och värde i människors ögon. Inomden digitala spelvärlden spenderas en hög andel pengar på virtuella produkter som inte har ettfunktionellt syfte. Syftet med denna uppsats är att undersöka om sociala faktorer kan påverkaköpintentionen i digitala spel genom sin relation till hedoniskt värde. Denna studie användersig av en kvantitativ metod och tvärsnittsdesign i form av enkäter. Enkäterna har spriditsgenom relevanta medier samt kedjeurval. Resultatet analyseras med en PLS-SEM analys föratt se om det finns ett förhållande mellan sociala faktorer och hedonism. Denna uppsatsförsöker besvara frågan: “Bidrar sociala faktorer till att skapa hedoniskt värde i virtuellaprodukter?”. Resultatet visar på att sociala band och social identitet relaterat till spelet ärpositivt relaterat till att skapa ett hedoniskt värde och på så sätt öka köpintentionen. Theory ofconsumtion value undersöker vilka värden som ligger bakom de val av köp konsumenter gör.Teorin används som grund i denna uppsats och har hjälpt till att skapaundersökningsmodellen samt styrka hypoteserna via begreppen emotionellt och socialt värde.Viktiga fynd är att ålder, kön och tid inte har någon påverkan på hedoniska värdet. Hedonisktvärde, social identitet och sociala band visades ha ett lågt instämmande i undersökningen.Trots detta blev slutsatsen att det finns ett signifikant samband mellan de sociala värdena ochhedoniskt värde. Detta bekräftar hypoteserna i uppsatsen. Resultatet i denna studie bidrar tilllitteraturen genom att undersöka relationen mellan utvalda konsumtionsvärden ochköpintentionen till virtuella produkter. Informationen som uppsatsen ger kan hjälpa företag attförstå faktorer som kan uppmuntra till köp av virtuella produkter. / Many different types of virtual products are growing in popularity and value in people's eyes.In the gaming world, large amounts of money is spent on virtual products that do not have afunctional purpose. The purpose of this essay is to investigate whether social factors caninfluence purchase intention in digital game contexts through their relationship to hedonicvalue. This study has carried out a quantitative method and a cross-sectional design in theform of questionnaires. The questionnaires have been distributed through relevant media andchain selection. The results are analysed with a PLS-SEM analysis to investigate whetherthere is a relationship between social factors and hedonism. This essay tries to answer thequestion: ”Do social factors contribute to creating hedonic value in virtual products?”. Theresult shows that social ties and social identity within the game are positively related tocreating a hedonic feeling and thus increasing purchase intention. The theory of consumptionvalue examines which values lie behind the purchase intention and choices consumers make.The theory is used as a basis in this essay, it has helped to create the research model andstrengthen the hypotheses via the concepts of emotional and social value. Some of theimportant findings in this essay is that age, gender and time are factors that have no influenceon the hedonic value. Hedonic value, social identity and social ties were shown to have lowagreement in the survey. Despite this, the conclusion was that there is a significantrelationship between the social values and hedonic value. This confirms the hypotheses in thepaper. The results of the study contribute to the literature by investigating the relationshipbetween the selected consumption values and willingnes to pay for virtual products. Theinformation provided in this essay can help companies have a better understanding of factorsthat can better promote the acquiring of virtual products.
144

Psychological Antecedents of Academic´s Intentions to Participate in Last Chance Tourism: Applying value-belief-norm and cognitive dissonance model

Wermelin, Joakim January 2022 (has links)
Last chance tourism (LCT) is defined as an endangered place due to climate change which creates motivations for tourists to travel to these places before they vanish. These trips also involve interaction with and observation of rare species that is about to disappear due to climate change. By integrating the Value-Belief-Norm and cognitive dissonance theory models, the main purpose of this research was to investigate psychological antecedents of engaging in LCT in higher educational institutions in Sweden. A survey was administered to 234 academics on seven universities in Sweden consisting of items measuring beliefs, pro-environmental personal norms, cognitive dissonance, and intentions to engage in Last Chance Tourism. The data was later analyzed using Partial Least Square-Structural Equation (PLS-SEM) approach. The results revealed a significant impact of cognitive dissonance on intentions to engage in LCT. These findings are important since they support the advantage of using cognitive dissonance theory within the context of LCT. The implications will hopefully spark an interest among academics to develop a sustainable tourism rescue plan and transfer this knowledge to a younger generation. For practitioners, this could be food for fought for organizations that are operating within the field of LCT.
145

Green gluing of wood

Sterley, Magdalena January 2004 (has links)
No description available.
146

Dammsäkerhetsutvärdering samt utformning av dammregister och felrapporteringssystem för svenska gruvdammar / Dam Safety Evaluation and Development of a Database for Swedish Tailings Dams

Isaksson, Nils, Lundström, Helena January 2005 (has links)
<p>A lot of mine waste rock and tailings arise from all mining processes and have to be stored in an appropriate way. Tailings are deposited in impoundments retained by tailings dams. The objective of tailings dams is to retain the slurry from the mining process and in that way prevent spill into the surroundings that might be harmful for the environment. Tailings dams are often constructed as staged embankments so that construction costs and demand of materials are spread more evenly over the period of deposition.</p><p>The objective of this thesis has been to compile information about and evaluate events at Swedish tailings dams and also to develop a collective database for all Swedish mining companies for all tailings dams and all events that occur at tailings dams.</p><p>Information about 60 events at Swedish tailings dams has been gathered and evaluated. The evaluation has been performed by comparison between and analysis of individual parameters and also by use of a multivariate statistical method called PLS. The statistical analysis shows a decrease in the numbers of events during the last five years, which indicates improved dam safety within the mining industry. The analysis also shows that severe events and the human factor might be related when it comes to the initiating cause of the event. Further relations between the parameters and the severity of the events can be seen from the PLS-analysis, for example that low and short tailings dams to a greater extent are subjected to severe events. To be able to draw more reliable conclusions further studies with a more complete basic data are needed.</p><p>This work has shown a need of a collective database within the Swedish mining industry for tailings dams and occurring events at tailings dams so that more complete basic data could be obtained for future studies. A structure for such a database has been developed in Microsoft Access 2000. The aim of the database is to facilitate feedback within the mining industry and to gather comprehensive data for future statistical evaluations.</p> / <p>Vid alla gruvprocesser skapas stora mängder restprodukter i form av gråberg och anrikningssand som måste tas om hand på lämpligt sätt. Anrikningssanden deponeras tillsammans med vatten från gruvprocessen i magasin omgärdade av dammvallar, s.k. gruvdammar. Gruvdammar har som syfte att hålla kvar anrikningssand och vatten och måste vara stabila så att de skyddar omgivningen från utsläpp av anrikningssand som skulle kunna vara skadligt för miljön. En gruvdamm byggs ofta upp i etapper eftersom byggkostnaderna och behovet av dammfyllnadsmaterial då sprids över tiden.</p><p>Syftet med arbetet har varit att sammanställa och utvärdera händelser vid svenska gruvdammar samt att utforma ett för gruvindustrin gemensamt dammregister och felrapporteringssystem.</p><p>60 händelser vid svenska gruvdammar har sammanställts och utvärderats. Utvärderingen har genomförts dels genom att enskilda parametrar jämförts och analyserats och dels med hjälp av den multivariata analysmetoden PLS. Den statistiska analysen visar på en minskning i antal händelser under de senaste fem åren, vilket tyder på ett förbättrat dammsäkerhetsarbete inom gruvindustrin. Analysen har kunnat uppvisa ett samband mellan allvarliga händelser och den mänskliga faktorn när det gäller vad det är som initierat händelserna. Genom PLS-analysen har ytterligare samband mellan de undersökta parametrarna och allvarlighetsgraden av händelserna kunnat utläsas, bl.a. visar analysen att låga och korta dammar i större utsträckning drabbas av allvarliga händelser jämfört med höga och långa dammar. För att säkra slutsatser ska kunna dras krävs dock vidare studier med ett mer komplett statistiskt underlag.</p><p>Examensarbetet har påvisat ett behov av ett branchgemensamt damm- och felrapporteringsregister för att ett mer komplett underlag ska kunna erhållas i framtiden. En färdig databasstruktur för ett sådant dammregister och felrapporteringsregister för svenska gruvdammar har utformats. Databasen är uppbyggd i Microsoft Access 2000 och är tänkt att underlätta erfarenhetsåterföring inom branschen samt att ge ett underlag för framtida statistiska undersökningar.</p>
147

A Biosensor Approach for the Detection of Active Virus Using FTIR Spectroscopy and Cell Culture

Lee Montiel, Felipe Tadeo January 2011 (has links)
Worldwide, 3.575 million people die each year from water-related diseases. The water and sanitation crisis claims more lives than any warfare and is predicted to be one of the biggest global challenges of this century. The rapid, accurate detection of viral pathogens from environmental samples is an ongoing and pertinent challenge in biological engineering. Currently employed methods are lacking in either efficiency or specificity. Here we explore a novel method for virus detection and concurrently use this method to learn more about the very early stages of the virus infection process. The method combines Fourier transform infrared (FTIR) spectroscopy, a method of visualizing molecules based on changes in vibration of particles, and mammalian cells as the biosensor. This method is used to detect and investigate viruses from the family picornaviridae, chosen due to their public health burden and their widespread presence in environmental samples, especially water sources. This family includes the Polioviruses, echoviruses and Coxsackieviruses, among others, many of which are human pathogens.The research outlined in this dissertation is aimed at developing and implementing a new cell-based biosensor that combines the advantages of FTIR spectroscopy with the ability of buffalo green monkey kidney (BGMK) cells to sense diverse stimuli, including infective enteroviruses. The goal of developing this biosensor is outlined in the first paper. The second paper focuses on the application of advanced statistical methods to analyze the spectra to discriminate different viral infections in BGMK cells. Finally, we designed a non-reactive metal biochamber to use with attenuated total reflectance-FTIR. This allowed near-continuous acquisition of real-time spectral data for the study of biochemical changes in mammalian cells caused by poliovirus (PV1) infection. This system is capable of tracking changes in cell biochemistry in minute intervals for many hours at a time.This work demonstrates the feasibility of FTIR spectroscopy in combination with the broad sensitivity of mammalian cells for potential use in the detection of infective viruses from environmental samples. We envision this method being extended to high throughput, automated systems to screen for viruses or other toxins in drinking water systems and medical applications.
148

Environmental preferences among steel stakeholders

Alriksson, Stina January 2013 (has links)
Emissions of carbon dioxide, dioxins, nitrogen oxides and particulate matter as well as use of non-renewable resources and energy are some important sustainability challenges for the Swedish steel industry. Much effort has been made, mainly by technical solutions, which to a high degree have decreased the emissions during the last 30 years. Technical solutions however will not be sufficient to reach sustainable development, stakeholder involvement is also necessary. Stakeholder theory states that stake­holder involvement must include a dialog between the stakeholders involved and the operation. The first step in this process is to identify which key issues the stakeholders find most important and then the organisation needs to start interact with its stakeholders. This thesis deals with such issues. Stakeholder preferences for environmental issues were assessed with conjoint analysis, Q-methodology and focus group discussions. The theory of planned behaviour was used to assess how attitudes were connected to background factors and a potential pro-environmental behaviour. Five studies have been carried out in the framework of this thesis. The studies include: a literature review, method evaluation, evaluation of environ­mental objectives in stakeholder groups, screening of relevant factors, evaluation of steel environmental characteristics, identification of barriers to the introduction of new materials and the im­pact of worry and risk perception on strategic environmental decisions. It can be concluded that the methods applied in the studies work well in eliciting preferences. It has been possible to show how different stakeholder groups as well as individuals prioritise environmental objectives and sustaina­bility issues. Since individuals within a stakeholder group vary considerably in preferences, the results from this thesis show the importance of illustrating results on an individual level instead of the traditional group level. Also, a method has been tested where the results were brought back to the respondents in order to stimulate discussions between different stakeholder groups.
149

Pollutant profiles as tools for characterisation of environmental exposure

Wingfors, Håkan January 2004 (has links)
This thesis is concerned with measurements of persistent organic pollutants (POPs) in environmental samples. The POPs consist of several groups of compound with many isomers, hence analysing POPs in a complex environment is a This thesis is concerned with measurements of persistent organic pollutants (POPs) in environmental samples. The POPs consist of several groups of compound with many isomers, hence analysing POPs in a complex environment is a challenging task. Studies of the abundance or dynamics of such substances in the environment require careful consideration of several key steps. The environmental and analytical problems must be correctly defined, suitable analytes, sampling strategies and techniques must be selected, the chemical analyses must be reproducible and accurate, and the data evaluation protocols must be rigorous and appropriate. The aim of this thesis was to evaluate the use of pollutant profiles in order to assess complex patterns of environmental exposure. When combined with multivariate data analysis (MVDA) a maximum of information may be extracted from analytical data. Nevertheless, good quality data is essential for correct evaluation of the environmental phenomena under investigation. The precision and accuracy of a solid phase assisted liquid extraction method was therefore assessed by comparison to a reference method. The validated method was used in two human exposure studies. The concentrations of PCBs and dioxins were determined in human tissues from general populations in Sweden and Spain. Although it was concluded that the populations were exposed to similar degree to PCBs and dioxins, principal component analysis (PCA) showed that the compound profiles differed between the populations. PCA was also used to differentiate between occupationally exposed workers and matched controls and between exposed workers with recent and earlier exposure. In addition, the analysis indicated that the differences in PCB patterns in workers with recent and earlier exposure were related to differences in the metabolic degradation rates of individual PCBs. The PCA model was further used to select PCB congeners that were representative of each group. Finally, the emission of polycyclic aromatic hydrocarbons (PAHs) in a traffic tunnel was estimated by measuring 29 individual PAHs. The sampling periods were chosen to reflect a maximum variation in the traffic composition. An excellent prediction of the percentage of heavy-duty vehicles was obtained using partial least squares (PLS) regression. It was shown by PCA that it might be possible to predict source compositions at other locations with the aid of multivariate statistical tools. Thus, properly gathered pollutant profiles and MVDA may be combined to extract a large amount of significant information from environmental source and exposure data.
150

Pluripotent Dynamic Capabilities in the Internationalization of Firms : Focus on Learning, Innovating and Networking in SMEs from Sweden

Saeedi, Mohammad Reza January 2017 (has links)
Internationalization of small and medium-sized enterprises (SMEs) has been a considerable concern for international business (IB) scholars. Particularly, for those economies such as Sweden with small local markets, internationalization of SMEs could be fundamental. The firm-specific advantages (FSAs), including what the firm has and does, are crucial for SMEs to overcome in the face of their numerous different obstacles such as liability of smallness (LOS) and liability of foreignness (LOF). Examining the extant literature on the evolution of IB theories indicates that over time, IB scholars have been reaching to dynamic-based FSAs (what the firm does) as the source of developing and protecting sustainable competitive advantages (SCA) across national borders in a changing business environment. The nature of dynamic-based FSAs could be similar to dynamic capabilities. But, when it comes to determining specific component factors  of dynamic-based  FSAs  (as dynamic  capabilities),  there has been little agreement between IB researchers. In other words, the room of the dynamic capabilities is still dark. In this respect, shedding light into this room, particularly in the area of IB studies, is crucial. In addition, after determining the component factors of the dynamic-based FSAs, it is also critical to know the likely relationships between the identified component factors as well as their impact on the SMEs’ international performance (IP) as an important outcome of the internationalization. This means that there is a potential theoretical gap associated with the conceptualization of the component factors of the dynamic-based FSAs on one hand, and a potential empirical gap on the other. Given both theoretical and empirical research gaps, the purpose of this study is to examine, from a theoretical perspective, the nature of the dynamic-based FSA and its related component factors in the IB context, as well as empirically explore how SMEs’ IP is influenced by the identified component factors of the dynamic-based FSAs. To perform this study, first of all, based on lenses of the resource-based view (RBV) and dynamic capability view (DCV), the literature on organizational capability in the context of the IB studies was systematically reviewed to fill the theoretical gap. Consequently, three component factors of dynamic-based FSAs including networking capability (NC) as a relational-based FSA, innovative capability (IC) as an innovative-based FSA and absorptive capacity (ACAP) as a learning-based FSA were identified, all of which are pluripotent and dynamic in nature. Then, a deductive approach was followed to develop several hypotheses and the associated conceptual model. Furthermore, a survey strategy, collecting data from 330 Swedish internationalized manufacturing SMEs, was applied to accomplish the purpose of the study. Then, the Partial Least Squares Structural Equation Modeling (PLS-SEM) as a quantitative method was used to analyze the collected data. The results of the PLS-SEM analysis show that the SMEs’ international performance (IP) is positively influenced by the three identified component factors, whether directly or indirectly. In this regard, ACAP and NC are the two reliable predictors (directly) of the SMEs’ IP. The results indicate that innovative capability (IC) does not have direct impact on the SMEs’ IP, and that its effect is fully transmitted on IP only by the mediating effect of the networking capability (NC). Further analysis showed that ACAP, as an endogenous latent variable, additionally has a positive indirect association with SMEs’ international performance (IP). Moreover, the results also indicate that innovative capability is directly and positively affected by ACAP (innovating-by-learning effect). It was also empirically revealed that ACAP is a very strong predictor for networking capability, which is labeled as the networking-by-learning effect. Another major finding was that in internationalized SMEs, NC is strongly, directly and positively affected by IC; this effect also is termed as the networking-by-innovating effect. The overall picture resulting from the PLS- SEM analysis indicates that ACAP in internationalized SMEs is a wellspring to develop both innovative capability and networking capability, as well as influence SMEs’ IP. Furthermore, these results suggest that the networking capability is a vital gateway to transmit the effect of the other two component factors on IP and, at the same time, directly influence IP.

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