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  • 401. Adamopoulos, Stergios
    et al.
    Voulgaridis, E
    Passialis, C
    Morphology and identification of fibre furnish components of papers used in the production of corrugated board2013Ingår i: Celuloza Si Harti, ISSN 1220-9848Artikel i tidskrift (Refereegranskat)
  • 402.
    Adamopoulos, Stergios
    et al.
    Aristotle University, Greece.
    Voulgaridis, Elias
    Aristotle University, Greece.
    Dimensional changes of extracted and non-extracted small wood specimens of black locust (Robinia pseudoacacia L.)2003Ingår i: European Journal of Wood and Wood Products, ISSN 0018-3768, E-ISSN 1436-736X, Vol. 61, nr 4, s. 264-268Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    From straight grained heartwood of black locust (Robinia pseudoacacia L.), specimens, 3 cm×3 cm in cross section and 0.5 mm (or 10 mm) in axial direction, were cut and used for the determination of dimensional changes and the rate of tangential swelling. Mean radial, tangential and axial shrinkage was 5.30%, 6.67% and 0.16%, respectively, while the coefficient of anisotropy was 1.26. Half of the specimens for the determination of the rate of tangential swelling were extracted for 48 h with distilled hot water. The tangential dimensional change and the time taken to attain half maximum swelling in air-dry and oven-dry specimens were assessed according to a common technique. Extractive removal resulted in an increase of the total magnitude of tangential swelling in both air-dry and oven-dry specimens. However, no significant differences in time taken to attain half maximum swelling between air-dry and oven-dry specimens were observed after extraction. The rate of tangential swelling was lower in air-dry specimens than in oven-dry specimens after 30 min of immersion in water when were non-extracted and after 5 min of immersion in water when were extracted. Extracted air-dry specimens had a greater rate of tangential swelling than non-extracted air-dry specimens and the same occurred for oven-dry specimens. Extraction resulted in a higher diffusion coefficient for air-dry specimens. The diffusion coefficient calculated for non-extracted air-dry specimens (0.901×10−4 cm2/min) showed that black locust is a difficult species to impregnate.

  • 403.
    Adamopoulos, Stergios
    et al.
    Technological Educational Institute of Larissa, Greece.
    Voulgaridis, Elias
    Aristotle University of Thessaloniki, Greece.
    Effect of hot-water extractives on water sorption and dimensional changes of black locust wood2012Ingår i: Wood research, ISSN 1336-4561, Vol. 57, nr 1, s. 69-78Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The hygroscopicity and the dimensional changes of black locust heartwood were investigated in relation to the progressive removal of hot-water extractives. Extraction in the original specimen form removed only part of the total 8.434 % hot-water extractives, 3.601 % in first extraction and 4.642 % in second extraction. As a result, the adsorption and desorption behaviour of black locust wood was little affected by the extraction and only a small increase was observed in dimensional changes at every RH from 0 % to 97 %. The mean hysteresis coefficient was also little affected by extraction and increased from 0.75 at the unextracted stage to 0.77 at the second extraction. The initial dimensional change 3.76 % of unextracted black locust wood corresponding to RH changes between 43 % and 80 % increased after the first and second extraction to the respective values of 3.96 % and 3.97 %. Extraction had no effect on the significant, very strong linear relationships between swelling or shrinkage and equilibrium moisture content (EMC).

  • 404.
    Adamopoulos, Stergios
    et al.
    Aristotelian University, Greece.
    Voulgaridis, Elias
    Aristotelian University, Greece.
    Within-tree variation in growth rate and cell dimensions in the wood of black locust (Robinia pseudoacacia)2002Ingår i: IAWA Journal, ISSN 0928-1541, Vol. 23, nr 2, s. 191-199Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Black locust (Robinia pseudoacacia L.) is regarded as an important natural resource almost throughout the world but relatively little is known about the within-tree variability of the anatomical characteristics of its wood. Discs 2 cm thick were cut at 2.25 m intervals, from the ground level to the top from ten black locust trees, 18–37-years-old, from the University Forest of Taxiarchi, Chalkidiki, Greece. The discs were used for the determination of growth rate and cell dimensions (fiber length and vessel member length and diameter) and their withintree variability (radial, oblique, vertical). Growth rate increased within the first 5–9 growth rings from the pith and then gradually decreased. Oblique variation of growth rate did not exhibit any clear tendency but a decrease at the top. In the case of vertical variation, growth rate decreased gradually with the year of cambium formation. Radial variability curves were found to be typical for the dimensions of cells (fibers, vessel members) especially for the fiber length. A rapid increase in cell dimensions was observed in the first 7–11 growth rings, the juvenile zone. Oblique and vertical variation of cell dimensions did not exhibit any clear tendencies.

  • 405.
    Adamopoulos, Stergios
    et al.
    Technological Educational Institute of Larissa, Greece.
    Voulgaridis, Elias
    Aristotle University of Thessaloniki, Greece.
    Ποιότητα και μεταβλητότητα της δομής του ξύλουσε σχέση με την αξιοποίησή του: [Quality and variability of wood structure in relation to its utilization]2012Ingår i: Το Δάσος: Μια Ολοκληρωμένη Προσέγγιση: [The forest: An integrated approach] / [ed] Aristotélis Papageorgíou, Geórgios Karétsos, Geórgios Katsadorákis, WWF Greece , 2012, s. 213-227Kapitel i bok, del av antologi (Övrigt vetenskapligt)
  • 406. Adamopoulos, Stergios
    et al.
    Voulgaridis, Elias
    Passialis, C.
    Wood quality characteristics of black locust (Robinia pseudoacacia  L.)2001Ingår i: Forest Research - New Series, Vol. 14, s. 63-72Artikel i tidskrift (Refereegranskat)
  • 407.
    Adamopoulos, Stergios
    et al.
    Technological Educational Institute of Thessaly, Greece.
    Voulgaridis, Elias
    Aristotle University of Thessaloniki, Greece.
    Passialis, Costas
    Aristotle University of Thessaloniki, Greece.
    CARACTERISTICILE MATERIALULUI FIBROS ŞI PROPRIETĂŢILEHÂRTIEI RECICLATE FOLOSITE ÎN FABRICAREA CARTONULUIONDULAT: Morphology and identification of fibre furnish components of papers used in the production of corrugated board2013Ingår i: 7th International Symposium on Advanced Technologies for the Pulp, Paper and Corrugated Board Industry, 2013Konferensbidrag (Refereegranskat)
    Abstract [ro]

    Fabricarea de ambalaje din carton ondulat (cutii, tăvi, etc) presupune un lanț de producțieintegrat, format din producătorii de hârtie, producătorii de carton ondulat și producătorii decontainere, dintre care, în Europa, majoritatea sunt IMM-uri. În prezent, containerele de cartonondulat sunt în mare parte realizate cu hârtie recuperată. Cea mai mare amenințare cu care seconfruntă lanțul de producție menționat este legat de lipsa de calitate și de disponibilitate a hârtieireciclate ca materie primă. Concret, una dintre cele mai importante proprietăți ale hârtiei deambalaj este rezistența mecanică, care depinde, în principal, de lungimea fibrelor din care estealcătuita hârtia. Aceste fibre sunt mai lungi în celuloza virgină (celuloza obţinută din lemn, adicănereciclată). Cu toate acestea, presiunea mare asupra cererii - precum și restricțiile economice șiecologice actuale referitoare la utilizarea lemnului ca materie primă - a condus la situația în caredoar o foarte mică cantitate de fibre naturale intră în lanțul de reciclare. Acest lucru înseamnă cărezistenţa fibrelor reciclate – si prin extindere – a hârtiilor – scade în mod constant, odată cuciclurile de reciclare aflate în desfăşurare. Suplimentar, hârtia reciclată prezintă o variabilitatefoarte mare, ceea ce constituie un obstacol atunci când vine vorba de a fabrica ambalaje cuproprietăţi omogene, cerute de către clienţi, la costuri fixe.Dificultatea de predicţie a proprietăților produselor din hârtie obţinute din surse eterogenepune mai multe limitări, care, din acest motiv, conduc la pierderi economice grave și numai ocaracterizare completă va permite mai buna lor folosire. Proiectul "RF-CORRUG - Controlulcalității materiilor prime din fibre recuperate pentru producția de carton ondulat", Cadrul NaționalStrategic de referinţă 2007-2013 Arhimede III, tratează această problemă tehnică comună aindustriei de carton ondulat. Concret, obiectivul principal al proiectului este de a sprijinicompetitivitatea companiilor producătoare de carton ondulat (în special IMM-uri), prin creareaunui instrument software bazat pe modele practice, care pot prezice proprietăţile sortimentului dehârtie de ambalaj, pornind de la proprietăţile fibrelor (calitative, cantitative, de structură) utilizateîn producția lor.Această lucrare prezintă informații referitoare la fibre (analiza cantitativă și calitativă,morfologia) și hârtiile de ambalaj (proprietățile fizice și mecanice) folosite în obţinereaambalajelor din carton ondulat. Au fost examinate diferite categorii de hârtii (miez şi capac),utilizate pentru producția de carton ondulat în Grecia. Principalele tehnici de analiză a fibrelor aufost: analiza masei fibroase, analiza morfologica a fibrei, microscopia optică, microscopiaelectronică de baleiaj (SEM). Suplimentar, a fost determinată rezistenţa la tracţiune (zero-spantensile test), pentru a măsura astfel rezistenţa medie a fibrei. Proprietăţile solicitate pentru hârtie au fost măsurate folosind testere şi standarderecunoscute pe plan internaţional. Informaţiile obţinute vor fi folosite pentru a dezvolta modelepredictive, bazate pe metode statistice avansate, pentru proprietăţile şi performanţele hârtiilor deambalaj, în funcţie de informaţiile furnizate de fibrele componente.

  • 408.
    Adamopoulos, Stergios
    et al.
    Technological Educational Institute of Thessaly, Greece.
    Voulgaridis, Elias
    Aristotle University of Thessaloniki, Greece.
    Passialis, Costas
    Aristotle University of Thessaloniki, Greece.
    Gypsum-based bricks (WoodRub BRICKS) manufactured from recovered wood and rubber2014Ingår i: Performance and maintenance of biobased building materials influencing the life cycle and LCA / [ed] Andreja Kutnar, Miha Humar, Michael Burnard, Mojca Žlahtič, Dennis Jones, 2014, s. 33-34Konferensbidrag (Övrigt vetenskapligt)
  • 409.
    Adamopoulos, Stergios
    et al.
    Greece.
    Voulgaridis, Elias
    Greece.
    Passialis, Costas
    Greece.
    Recycled Waste Paper and the Corrugated Packaging Industry in Europe2009Ingår i: Proceedings of 24th International Conference on Solid Waste Technology and Management: Philadelphia, PA USA, March 15-18, 2009, 2009, s. 400-411Konferensbidrag (Refereegranskat)
  • 410.
    Adamopoulos, Stergios
    et al.
    Aristotle University, Greece.
    Voulgaridis, Elias
    Aristotle University, Greece.
    Passialis, Costas
    Aristotle University, Greece.
    Variation of certain chemical properties within the stemwood of black locust (Robinia pseudoacacia L.)2005Ingår i: European Journal of Wood and Wood Products, ISSN 0018-3768, E-ISSN 1436-736X, Vol. 63, nr 5, s. 327-333Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    From the bottom, middle, and top of three mature 35 to 37-year old black locust tree discs were cut and analysed to determine the variation within the stem of certain chemical properties. Hot-water extractive content was greater in heartwood than in sapwood, while the reverse occurred for the dichloromethane extractive content. Vertical stem analysis of hot-water extractives showed that they increased in heartwood but decreasedin sapwood from the bottom to the top of the stems while the reversal occurred for dichloromethane extractive content of sapwood. At the bottom and the middle of the stems, ash content was greater in sapwood than in heartwood, but at the top no difference was found between heartwood and sapwood. Ash content of both heartwood and sapwood was found to increase in the axial direction with respective values of 0.36% (bottom) and 0.76% (top) for heartwood and of 0.65% (bottom) and 0.76% (top) for sapwood. Ash analysis showed that considerable variations were found for the inorganic elements K and P being greater in sapwood than in heartwood. Heartwood was more acid than sapwood except for the top of the stems. Acidity mean values were found to increase from the bottom to the top of the stems in heartwood while they slightly decreased in sapwood. Total buffering capacity of heartwood was greater than that of sapwood and total buffering capacity of sapwood exhibited an inverse relationship to height. Very small acid equivalent values were determined only in sapwood. At the bottom, lignin content in heartwood (25.73%) was greater than in sapwood (18.13%). Lignin content of heartwood decreased from 25.73% at the bottom to 18.33% at the top, while that of sapwood was 18.13% at the bottom, 21.42% at the middle and 19.64% at the top.

  • 411.
    Adamopoulos, Stergios
    et al.
    Technological Educational Institute of Larissa, Greece.
    Voulgaridis, Elias
    Aristotle University of Thessaloniki, Greece.
    Passialis, Costas
    Aristotle University of Thessaloniki, Greece.
    Wood recycling in Europe2011Konferensbidrag (Refereegranskat)
    Abstract [en]

    Nowadays, waste wood is a valuable secondary raw material that can cover much of the wood-based panel industry's needs and a major source of renewable energy. The various categories of waste wood are described in European legislation and standards but in practice mostly followed industry practices relating to the purchase, classification and use of recovered wood. The European Panel Federation (EPF) proposes a three category classification system: untreated wood, non-hazardous treated wood, hazardous waste wood. The traditional practice of recycling in industry included mechanical handling of waste wood while new improved methods involve hydrothermal treatments. Of the total approximately 30 million cubic meters of recovered wood in Europe 38% is recycled, 34% is used for energy production and 28% ends up in landfills or composting. In the future recovered wood is expected to play an increasingly important role in the sustainability of wood-based panel industries as well as for the protection of the environment, and therefore new technologies are needed to fully explore this valuable resource.

  • 412.
    Adamopoulos, Stergios
    et al.
    Technological Edicational Institute of Larissa, Greece.
    Voulgaridis, Elias
    Aristotle University, Greece.
    Passialis, Costas
    Aristotle University, Greece.
    Beaver, Tim
    Composites & Textiles Pera, UK.
    Bouras, Takis
    ELKEDE Technology & Design Centre S.A., Greece.
    Properties of Microwave heat treated oak wood and impregnated with soybean oil2011Ingår i: Program & Book of Abstracts: Workshop, “Mechano-Chemical transformations of wood during Thermo-Hydro-Mechanical processing” / [ed] Parviz Navi, Andreas Roth, 2011, s. 145-145Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    The poster presents selected data on physical and mechanical properties, and gluing behaviour of microwave heat treated wood and impregnated with natural oils.

  • 413.
    Adamopoulos, Stergios
    et al.
    Technological Education Institute of Larissa, Greece.
    Wimmer, Rupert
    Georg-August-University Göttingen, Germany.
    Milios, Elias
    Democritus University of Thrace, Greece.
    Tracheid length – growth relationships of young Pinus brutia grown on reforestation sites2012Ingår i: IAWA Journal, ISSN 0928-1541, Vol. 33, nr 1, s. 39-49Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Brutia pine (Pinus brutia Ten.) reforestations have been successfully used for decades in restoration of degraded forest ecosystems in Greece. The future purpose of these reforestations might expand to include wood utilisation. This study provides information on tracheid length of juvenile brutia pine aged 14–22 years grown on good and medium sites in Northeastern Greece. In addition, relationships among ring width, latewood proportion, wood density, and tracheid length were evaluated by using Causal Correlation Analysis. Similar mean tracheid length values were found for good and medium sites. Radial variability of tracheid length was similar on the good and medium sites, showing the typical increase in the juvenile phase. On both site types, latewood proportion showed a strong and positive relationship with wood density. Unexpectedly and only on the good sites, a significant positive relationship was found between ring width and wood density. On the medium sites, tracheid length was negatively related to fast growth and positively to high wood density. Tracheid length on the good sites was correlated only with latewood proportion with a weak positive relationship. The overall results may provide opportunities to better understand the quality of small-dimension timber of brutia pine and to better utilise it.

  • 414.
    Adamopoulos, Stergios
    et al.
    Georg-August-University Goettingen, Germany ; Technological Educational Institute of Larissa, Greece.
    Xie, Yanjun
    Georg-August-University Goettingen, Germany.
    Militz, Holger
    Georg-August-University Goettingen, Germany.
    Distribution of blue stain in untreated and DMDHEU treated Scots pine sapwood panels after six years of outdoor weathering2011Ingår i: European Journal of Wood and Wood Products, ISSN 0018-3768, E-ISSN 1436-736X, Vol. 69, nr 2, s. 333-336Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Surface coating and bulk treatment of wood are two effective measures which can, individually or conjointly, protect exterior wood from deterioration. This paper reports on the blue stain attack in coated wood, untreated and modified with DMDHEU, after six years of natural exposure.

  • 415.
    Adamou, Sofia
    et al.
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för informatik (IK).
    Ntoka, Lamprini
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för informatik (IK).
    The impact of Digital Technologies on Academic Libraries: a study in Greece2017Självständigt arbete på avancerad nivå (masterexamen), 80 poäng / 120 hpStudentuppsats (Examensarbete)
    Abstract [en]

    Purpose: This study explores both library users’ and librarians’ experiences, benefits, and challenges depending on the implementation of digital technologies in academic libraries. The research has been taken place in two Greek academic libraries; In the Panteion University Library and in the Central Library of T.E.I. of Athens.Approach: Two research questions were developed for this research to be conducted and a sample size of 55 respondents (39 library users and 16 librarians) of the Panteion University Library and Central Library of T.E.I. of Athens, was evaluated.Findings: From the findings of the study, it was concluded that the general perception of both library users and librarians towards digital material and E-resources and services of the Panteion University Library and Central Library of T.E.I. of Athens, is satisfactory. Library users were satisfied with the convenience of digital material, the availability of E-resources provided by both academic libraries such as World Wide Web, WIFI, and online databases. They were not satisfied with library technology (i.e., computers) and library staff. Besides, results showed that services such as e-mail and Open Public Access Catalogue were used more often. Librarians were less satisfied with the digital library system, the limited personnel, and the financial funds for academic libraries in general.Implication: The results of this research have implications in the stakeholders of an academic library including the institutional management, the library administration, the librarians, the library users, the researchers, the community at large, and others.Value: This paper identifies critical issues related to the utilization of digital technologies and digital material; their benefits and challenges faced by librarians and library users as well as their effective operation from academic libraries in this information age.

  • 416.
    Adams, Marc A.
    et al.
    Arizona State University, USA.
    Ding, Ding
    University of Sydney, Australia.
    Sallis, James F.
    University of California, USA.
    Bowles, Heather R.
    National Institutes of Health, USA.
    Ainsworth, Barbara E.
    Arizona State University, USA.
    Bergman, Patrick
    Linnéuniversitetet, Fakulteten för samhällsvetenskap (FSV), Institutionen för idrottsvetenskap (ID).
    Bull, Fiona C.
    The University of Western Australia, Australia.
    Carr, Harriette
    Ministry of Health, New Zealand.
    Craig, Cora L.
    School of Public Health, Canada.
    De Bourdeaudhuij, Ilse
    Ghent University, Belgium.
    Fernando Gomez, Luis
    Hagstromer, Maria
    Klasson-Heggebo, Lena
    Inoue, Shigeru
    Lefevre, Johan
    Macfarlane, Duncan J.
    Matsudo, Sandra
    Matsudo, Victor
    McLean, Grant
    Murase, Norio
    Sjostrom, Michael
    Tomten, Heidi
    Volbekiene, Vida
    Bauman, Adrian
    Patterns of neighborhood environment attributes related to physical activity across 11 countries: a latent class analysis2013Ingår i: International Journal of Behavioral Nutrition and Physical Activity, ISSN 1479-5868, E-ISSN 1479-5868, Vol. 10, artikel-id 34Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Background: Neighborhood environment studies of physical activity (PA) have been mainly single-country focused. The International Prevalence Study (IPS) presented a rare opportunity to examine neighborhood features across countries. The purpose of this analysis was to: 1) detect international neighborhood typologies based on participants' response patterns to an environment survey and 2) to estimate associations between neighborhood environment patterns and PA. Methods: A Latent Class Analysis (LCA) was conducted on pooled IPS adults (N=11,541) aged 18 to 64 years old (mean=37.5 +/- 12.8 yrs; 55.6% women) from 11 countries including Belgium, Brazil, Canada, Colombia, Hong Kong, Japan, Lithuania, New Zealand, Norway, Sweden, and the U. S. This subset used the Physical Activity Neighborhood Environment Survey (PANES) that briefly assessed 7 attributes within 10-15 minutes walk of participants' residences, including residential density, access to shops/services, recreational facilities, public transit facilities, presence of sidewalks and bike paths, and personal safety. LCA derived meaningful subgroups from participants' response patterns to PANES items, and participants were assigned to neighborhood types. The validated short-form International Physical Activity Questionnaire (IPAQ) measured likelihood of meeting the 150 minutes/week PA guideline. To validate derived classes, meeting the guideline either by walking or total PA was regressed on neighborhood types using a weighted generalized linear regression model, adjusting for gender, age and country. Results: A 5-subgroup solution fitted the dataset and was interpretable. Neighborhood types were labeled, "Overall Activity Supportive (52% of sample)", "High Walkable and Unsafe with Few Recreation Facilities (16%)", "Safe with Active Transport Facilities (12%)", "Transit and Shops Dense with Few Amenities (15%)", and "Safe but Activity Unsupportive (5%)". Country representation differed by type (e. g., U. S. disproportionally represented "Safe but Activity Unsupportive"). Compared to the Safe but Activity Unsupportive, two types showed greater odds of meeting PA guideline for walking outcome (High Walkable and Unsafe with Few Recreation Facilities, OR=2.26 (95% CI 1.18-4.31); Overall Activity Supportive, OR=1.90 (95% CI 1.13-3.21). Significant but smaller odds ratios were also found for total PA. Conclusions: Meaningful neighborhood patterns generalized across countries and explained practical differences in PA. These observational results support WHO/UN recommendations for programs and policies targeted to improve features of the neighborhood environment for PA.

  • 417.
    Adams, Nathalie
    et al.
    Linnéuniversitetet, Ekonomihögskolan (FEH), Institutionen för marknadsföring (MF).
    Chyssler, Louise
    Linnéuniversitetet, Ekonomihögskolan (FEH), Institutionen för marknadsföring (MF).
    Tourism in Mexico: More than Tacos and Tequila?: A Case Study on CSR Strategies of Swedish and Mexican Tour Operators in Mexico 2014Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [en]

    The purpose of this study is to explore whether tour operators work with CSR within their organizations in Mexico, and describe how they implement it as well as why they work with it. Furthermore, the paper will analyze similarities and differences between the Swedish and Mexican tour operator’s CSR strategies as well as the reasons for this. Lastly, recommendations will be made to the Mexican tour operators on how they can gain knowledge from Swedish tour operators on CSR strategies and the development of these.The theoretical framework contains descriptions of theories on strategy, competitive advantage, the CSR Pyramid, stakeholder theory as well as CSR in the context of developing countries, which are all relevant theories for the issue studied as well as for answering the research questions. The empirical findings that have been collected through interviews with two Swedish, and two Mexican tour operators address the respective tour operator’s work with CSR in Mexico.In the analysis the theoretical framework has been put in relation to the empirical evidence. The analysis consists of how and why CSR activities are implemented in the respective organization. It also addresses the difficulties tour operators from developed countries face when implementing CSR on destinations in developing countries.Lastly, our conclusions show that there are several ways of implementing CSR in developing countries, as well as different views on why taking social responsibility within the tourism industry is important. Moreover, the main reason for this divergence lies in different perspectives, which has also been shown to be a contributing factor to the challenges faced by Swedish tour operators in the context of a developing country.In the end of the thesis recommendations will be made to Mexican firms on how to develop, and implement CSR strategies more successfully as well as recommendations for further research within the field of CSR in developing countries.

  • 418.
    Adamsdotter, Annelie
    Linnéuniversitetet, Fakulteten för konst och humaniora (FKH), Institutionen för film och litteratur (IFL).
    Drömvandrarens dotter2019Självständigt arbete på grundnivå (konstnärlig kandidatexamen), 20hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Ingen vet var hon kommer ifrån eller att hon snart ska spela huvudrollen i en uråldrig profetia; allra minst hon själv.

    17-åriga Amelia har aldrig passat in i Ljusets systraskap. Hon älskar spänning och äventyr, inte broderier och körsång. I flera år har hon sparat silvermynt från tjuvjaktsbyten för att börja om någon annanstans. Men så en natt träffar hon den mystiska Gabriel – vars sneda leende följer henne ända in i drömmen – och helt plötsligt förändras allt. Ingenting är längre säkert … ingenting förutom att världen som hon känner till den kommer att gå under.

  • 419.
    Adamska, Joanna
    et al.
    Växjö universitet, Fakulteten för humaniora och samhällsvetenskap, Ekonomihögskolan, EHV.
    Karcz, Kamila
    Växjö universitet, Fakulteten för humaniora och samhällsvetenskap, Ekonomihögskolan, EHV.
    Liu, Rongzhi
    Växjö universitet, Fakulteten för humaniora och samhällsvetenskap, Ekonomihögskolan, EHV.
    How to survive as an expatriate in China2006Självständigt arbete på avancerad nivå (magisterexamen), 20 poäng / 30 hpStudentuppsats
    Abstract [en]

    The increase of foreign direct investment in China has resulted in the presence of a number of Western expatriates working in Sino–foreign joint ventures. These expatriate managers have to make things work in absolutely new settings. Therefore, without cross-cultural trainings, they may have very stressful experience in China. Understanding of the Chinese culture and Chinese society may ultimately save much frustration and money. With our thesis therefore we would like to explore how companies manage training processes before sending expatriates to China, and prepare them for further knowledge transfer to the employees in China. This has lead us to the following research question: “How do the Western companies manage process of sending expatriates to China?”

    The research is based on the experiences of three companies: IKEA, Texol Technical Solutions and NCR and demonstrates possible means that can be engaged by the companies to facilitate adjustment processes of their expatriates in China. The empirical data were gathered from interviews with managers from the mentioned companies. In order to analyze our empirical findings we present literature that was structured as follows: Training in the international context, training in the Chinese context and communication between expatriate and local employees. Both the literature review as well as our empirical data with analysis aspire to provide the reader with an in depth study of the importance of the selection of the right candidates and the provision of trainings, as it can help both to understand the unique Chinese cultural and business characteristics environment as well as effectively and efficiently to operate in China.

    In our conclusions we present our findings regarding the following issues: support for the expatriates; training of the Chinese employees and importance of communication. Based on our analysis we introduce our recommendations for the three companies, including: Selection of the right candidates, presence of action plans, motivation and incentives, trainings, contact with the company and other expatriates during the assignment and importance of repatriation.

  • 420.
    Adamsson, Philip
    et al.
    Linnéuniversitetet, Ekonomihögskolan (FEH), Institutionen för ekonomistyrning och logistik (ELO).
    Petersson, Johannes
    Linnéuniversitetet, Ekonomihögskolan (FEH), Institutionen för ekonomistyrning och logistik (ELO).
    Användarens roll vid prestationsmätning för miljö: En fallstudie på Växjö kommun2017Självständigt arbete på avancerad nivå (magisterexamen), 20 poäng / 30 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Titel: Användarens roll vid prestationsmätning för miljö - En fallstudie på Växjö kommun 

    Bakgrund: En ökad medvetenhet kring miljö i samhället, ett växande tryck från allmänheten och fler regulatoriska krav har påverkat offentliga verksamheters ansträngningar inom miljöområdet. Följden av denna ansträngning är att prestationsmätningar för miljö har implementerats från den privata sektorn för att offentliga verksamheter skall kunna visa upp förbättringar och göra utvärderingar av sitt arbete med miljöfrågor. Forskare menar dock att insamling av information om prestationer inte är tillräckligt utan informationen behöver även användas i verksamheten. Därmed blev det intressant att studera hur chefer i offentliga verksamheter använder information från prestationsmätning för miljö och varför informationen används.

    Syfte: Syftet med denna studie är att beskriva och analysera hur förvaltningschefer och kommunala bolagschefer på Växjö kommun använder information från prestationsmätningar för miljö samt förklara varför informationen används. Dessutom syftar studien till att ge förbättringsförslag som stödjer Växjö kommuns arbete med prestationsmätning för miljö.

    Metod: Denna uppsats är en kvalitativ fallstudie med Växjö kommun som fallverksamhet. Vid insamling av data har framförallt kvalitativa intervjuer genomförts, men data innefattas även av interna dokument som exempelvis Växjö kommuns miljöprogram.       

    Resultat och slutsatser: Studiens resultat visar att förvaltningschefer och kommunala bolagschefer i Växjö kommun främst använder information från prestationsmätningar för miljö för interna syften, dock är vissa chefer mer benägna att använda informationen än andra. Studiens resultat visar även att arbetet med prestationsmätning för miljö kan vidareutvecklas.

  • 421.
    Adamsson, Philip
    et al.
    Linnéuniversitetet, Ekonomihögskolan (FEH), Institutionen för ekonomistyrning och logistik (ELO).
    Petersson, Johannes
    Linnéuniversitetet, Ekonomihögskolan (FEH), Institutionen för ekonomistyrning och logistik (ELO).
    Andersson, Gabriel
    Linnéuniversitetet, Ekonomihögskolan (FEH), Institutionen för ekonomistyrning och logistik (ELO).
    Belöningssystem och motivation: En flerfallsstudie på företag inom byggbranschen2016Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Sammanfattning

    Titel: Belöningssystem och motivation - En flerfallsstudie på företag inom byggbranschen

    Författare: Philip Adamsson, Gabriel Andersson, Johannes Petersson

    Program: Civilekonomprogrammets controllerfördjupning

    Examinator: Elin Funck

    Handledare: Natalia Semenova

    Institution: Ekonomihögskolan Linnéuniversitetet i Växjö

    Bakgrund och problem: Ett styrmedel som flitigt nyttjas är belöningssystem där ledningen med hjälp av ett fungerande belöningssystem kan få önskat beteende hos arbetstagaren. Hur ett belöningssystem är utformat skiljer sig mellan olika branscher och byggbranschen är en bransch kantad av intressekonflikter mellan arbetsgivare och arbetstagare. Råder det en överrensstämmelse mellan arbetsgivarens avsikt med ett belöningssystem och arbetstagaren uppfattning om belöningssystemet? Det finns flertalet olika belöningar som kan ge önskat beteende, men vad är det egentligen som motiverar arbetstagare inom byggbranschen.

    Syfte: Syftet med studien är att redogöra för hur belöningssystem är utformade i byggbranschen. Vidare är syftet med studien att se om arbetsgivarens avsikter med och arbetstagarens uppfattning av belöningssystemet överensstämmer. Dessutom ämnar studien behandla varför, alternativt varför inte arbetstagarna anser att belöningssystemet motiverar.

    Metod: Vi har genomfört en flerfallsstudie på Svensk Vattenbilningsteknik AB och TECAB Ytskyddsprodukter AB, verksamma inom byggbranschen. Empiriskt material har insamlats genom semi-strukturerade intervjuer. Studien har haft en deduktiv forskningsansats.

    Slutsats: Vi kan konstatera att arbetsgivare bör fokusera på vilket syfte de har med belöningssystemet för att kunna utforma ett fungerande belöningssystem. Enligt studien skall ett belöningssystem innehålla en kombination av finansiella och ickefinansiella belöningar. Slutligen bör en finansiell bonus ingå i byggföretags belöningssystem eftersom den ökar arbetstagarnas motivation och tillfredsställelse.

  • 422.
    Adamsson, Sandra
    et al.
    Linnéuniversitetet, Ekonomihögskolan (FEH), Institutionen för organisation och entreprenörskap (OE).
    Lundell, Sophie
    Linnéuniversitetet, Ekonomihögskolan (FEH), Institutionen för organisation och entreprenörskap (OE).
    Creating a win-win-win-win situation: En fallstudie av den sociala entreprenörens motivation2013Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Bakgrund: Socialt företagande utmärks av entreprenörens förmåga att identifiera samhällsproblem och tillmötesgå de sociala behoven i samhället. Det finns olika definitioner av socialt entreprenörskap, och dessa antyder att de styrande drivkrafterna skiljer sig ifrån de i traditionellt entreprenörskap. De motivationsfaktorer som den sociala entreprenören har skulle kunna återspeglas i hur verksamheten bedrivs och hur organisationens grundtankar förmedlas ut i företaget. Vidare skulle detta kunna ha en påverkan i strävan efter företagets uppsatta mål, vare sig deär socialt, miljömässigt eller ekonomiskt motiverade.

    Problemformulering: Vad finns det för drivkrafter hos en social entreprenör samt hur genomsyras det i företaget?Syfte:Syftet med uppsatsen är att genom fallstudie skapa ökad förståelse för den sociala entreprenören samt hur den motivation som finns visar sig iverksamheten.

    Metod: För uppsatsen har en kvalitativ ansats valts,och baseras på en fallstudie av ett företag vars verksamhet utgår ifrån socialt entreprenörskap. Data har samlats in via ett abduktivt tillvägagångssätt, genom semi-strukturerade intervjuer, observationer och teoretisk insamling.

    Slutsats: Uppsatsen påvisar de drivkrafter som finns hos den sociala entreprenören. Exempelvis att det primära målet är att uppnå en positiv social-och miljömässig påverkan i samhället, snarare än att generera en ekonomisk vinst. Andra drivkrafter är samtidigt att motivera och utbilda personalen inom medvetenhet om hållbarhet, säkerhet och kvalitet.

  • 423.
    Adamsson, Stina
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för informatik (IK).
    Kommunikationskanaler vid intern nyhetsspridning: En fallstudie om hur kommunikationskanaler påverkar den upplevda kommunikationseffektiviteten vid nyhetsspridning2019Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Kommunikation är en förutsättning för att organisationer ska fungera och sätten att kommunicera på har utvecklats i takt med den tekniska utvecklingen. Med det stora utbudet av kommunikationskanaler som finns idag kan det vara svårt att veta vilken kommunikationskanal som lämpas i olika situationer. Den här rapporten baseras på en fallstudie där den upplevda kommunikationseffektiviteten tenderade att variera beroende på vilken kommunikationskanal som användes vid nyhetsspridning. Tidigare forskning har studerat hur valet av kommunikationskanal kan påverka kommunikationseffektiviteten ur olika perspektiv, men inte då informationstypen är en nyhet. Därför ansågs det intressant att studera hur olika kommunikationskanaler påverkar kommunikationseffektiviteten vid nyhetsspridning.

     

    Syftet med studien var att lyfta fram och beskriva hur kommunikationskanaler påverkar den upplevda kommunikationseffektiviteten, när informationstypen är en nyhet. För att uppnå syftet skulle följande forskningsfråga besvaras:

     

    • Vilka för- och nackdelar upplever anställda med kommunikationskanaler gällande kommunikationseffektiveten vid nyhetsspridning på ett stort nationellt företag?

     

    Teorier som användes för att uppnå syftet med studien var Media Richness Theory och Osgood och Schramms cirkulära kommunikationsmodell. Teorierna har använts för att förklara hur nyhetsspridning sker på fallföretaget och för att belysa och eventuellt förklara upplevda problem i samband med nyhetsspridningen.

     

    Data samlades in genom tillämpning av en kvalitativ metod och utförandet av semistrukturerade intervjuer. Undersökningen visade att det upplevdes för- och nackdelar med samtliga kommunikationskanaler, samt att den upplevda kommunikationseffektiviteten tenderade att variera, beroende på vilken nyhetstyp som kommunicerades via kommunikationskanalerna. När resultatet ställdes mot forskningsfrågan och det teoretiska ramverket visade det sig att upplevda för- och nackdelar med kommunikationskanalerna, var kopplat till huruvida nyhetstypen är rutin- eller icke rutinmässig och hur den matchas med en rik eller fattig kommunikationskanal, vilket Media Richness Theory också förklarar.

     

    Slutsatsen av studien visade att nyhetsspridning som sker face to face och via telefon möjliggör interaktion och förmedling av känslor i realtid, men där känslor inte upplevs förmedlas lika bra via telefon som face to face, de många signalerna kan dessutom upplevas som överväldigande. Mejl, anslagstavla och intranät är tidsmässigt effektivt och plats och tids oberoende i olika grad. Däremot är möjligheten till interaktion och förmedling av känslor begränsad. Resultatet tyder på att kommunikationskanalernas för- och nackdelar verkar vara kopplat till huruvida kommunikationskanalerna upplevs som lämpliga för att förmedla olika typer av nyheter. Rika kommunikationskanaler upplevs som effektiva för att förmedla icke rutinmässiga nyheter och mindre rika kanaler upplevs som effektiva för att förmedla rutinmässiga nyheter.

  • 424.
    Adappan Ramu, Sasikala
    et al.
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för informatik (IK).
    Narasingam Kuppusamy, Venkatesh
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för informatik (IK).
    Exploring knowledge sharing in the Requirement Engineering phase of globally distributed Information Systems development: Perceived challenges and suggestions for improvement2016Självständigt arbete på avancerad nivå (magisterexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [en]

    The Master thesis explores the knowledge sharing that takes place during the requirement engineering phase of globally distributed information systems development. In recent years, due to globalization, information systems development activities have become increasingly distributed across different geographical locations. Requirement engineering is an important and knowledge intensive phase in the development of information systems. Requirement engineering is the process of identifying, analyzing, documenting, validating and managing the requirements of a system. Effective and efficient knowledge sharing during the requirement engineering is vital for the successful development of information systems. However, the global distribution of the stakeholders has affected knowledge sharing during requirement engineering in various ways making it more challenging.

     

    Drawing on the theories of knowledge sharing within the field of information systems, this interpretive research study aims at exploring stakeholders’ perceptions about the challenges met during the knowledge sharing in requirement engineering phase of globally distributed information systems development projects. More specifically, this Master thesis explores the perceived challenges and generates a list of suggestions to overcome the challenges by conducting qualitative semi-structured interviews among the key stakeholders, both customers and business analysts.

     

    The findings indicate that the knowledge sharing is influenced by challenges such as cultural differences, language barriers, communication issues, coordination issues arising from multiple stakeholders, time difference and difficulty in sharing tacit knowledge in the globally distributed settings. Participants’ suggestions for overcoming these challenges include cultural trainings, kick off meetings, language trainings, use of translator, face-to-face communication and interaction, video conferencing, scheduling important meetings in the common suitable timings, identification of the main stakeholders, having a mediator and making close observations with face-to-face interactions.

     

     

    Keywords:  Information Systems, Information Systems Development, Requirement Engineering, Knowledge Sharing, Global Distribution, Outsourcing

     

     

  • 425.
    Adbo, Karina
    Linnéuniversitetet, Fakulteten för samhällsvetenskap (FSV), Institutionen för utbildningsvetenskap (UV).
    Hur ska vi skapa struktur och logik i kemiundervisningen?2014Ingår i: LMNT-nytt, ISSN 1402-0041, nr 1, s. 28-32Artikel i tidskrift (Övrig (populärvetenskap, debatt, mm))
  • 426.
    Adbo, Karina
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för naturvetenskap, NV.
    Relationships between models used for teaching chemistry and those expressed by students2012Doktorsavhandling, sammanläggning (Övrigt vetenskapligt)
    Abstract [en]

    This thesis is focused upon chemistry as a school subject and students' interpretations and use of formally introduced teaching models. To explore students' developing repertoire of chemical models, a longitudinal interview study was undertaken spanning the first year of upper secondary school chemistry. Matter in its different states was selected as the target framework for this study. The results presented are derived from both generalisations of groups of students as well as a case study describing an individual learner's interpretation of formal content. The results obtained demonstrated that the formal teaching models provided to the students included in this study were not sufficient to afford them a coherent framework of matter in its different states or for chemical bonding. Instead, students' expressed models of matter and phase change were to a high degree dependent on electron movement (Paper I), anthropomorphism (Paper II) and, for one student, a mechanistic approach based on small particles and gravitation (Paper III). The results from this study place focus on the importance of learners' prior learning (previous experiences) and the need to develop a coherent framework of formal teaching models for the nature of matter and phase change.

  • 427.
    Adbo, Karina
    et al.
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Andersson, Håkan S.
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Ankarloo, Jonas
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Karlsson, Jesper G.
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Norell, M C
    Olofsson, Linus
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Svenson, Johan
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Örtegren, U
    Nicholls, Ian A.
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Enantioselective synthetic receptors for Tröger’s base1999Ingår i: Bioorganic Chemistry, Vol. 27, nr 5, s. 363-371Artikel i tidskrift (Refereegranskat)
  • 428.
    Adbo, Karina
    et al.
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Nicholls, Ian Alan
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Enantioselective SPE on Tröger’s base molecularly imprinted polymers2001Konferensbidrag (Refereegranskat)
  • 429.
    Adbo, Karina
    et al.
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Nicholls, Ian Alan
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Study of the kinetics of enantioselective solid-phase extraction on Tröger’s base molecularly imprinted polymers2001Ingår i: Analytica Chimica Acta, Vol. 435, s. 115-120Artikel i tidskrift (Refereegranskat)
  • 430.
    Adbo, Karina
    et al.
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Rosengren-Holmberg, Jenny
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Nicholls, Ian Alan
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Kinetics of enantioselective solid-phase extraction of Tröger’s base molecularly imprinted polymers2000Konferensbidrag (Refereegranskat)
  • 431.
    Adbo, Karina
    et al.
    Linnéuniversitetet, Fakultetsnämnden för naturvetenskap och teknik, Institutionen för naturvetenskap, NV.
    Taber, Keith
    Developing a way to view chemistry: a case study of one Swedish student’s rich conceptualisations to make sense of upper high school chemistryManuskript (preprint) (Övrigt vetenskapligt)
  • 432.
    Adbo, Karina
    et al.
    Linnéuniversitetet, Fakulteten för samhällsvetenskap (FSV), Institutionen för utbildningsvetenskap (UV).
    Taber, Keith
    University of Cambridge.
    Developing an Understanding of Chemistry: A case study of one Swedish student's rich conceptualisation for making sense of upper secondary school chemistry2014Ingår i: International Journal of Science Education, ISSN 0950-0693, E-ISSN 1464-5289, Vol. 36, nr 7, s. 1107-1136Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    In this paper, we report a case study of a 16-year-old Swedish upper secondary student's developing understanding of key concept areas studied in his upper secondary school chemistry course. This study illustrates how the thinking of an individual learner, Jesper, evolves over a school year in response to formal instruction in a particular educational context. Jesper presented a range of ideas, some of which matched intended teaching whilst others were quite inconsistent with canonical chemistry. Of particular interest, research data suggest that his initial alternative conceptions influenced his thinking about subsequent teaching of chemistry subject matter, illustrating how students' alternative conceptions interact with formal instruction. Our findings support the claims of some researchers that alternative conceptions may be stable and tenacious in the context of instruction. Jesper's rich conceptualisation of matter at submicroscopic scales drew upon intuitions about the world that led to teaching being misinterpreted to develop further alternative conceptions. Yet his intuitive thinking also offered clear potential links with canonical scientific concepts that could have been harnessed to channel his developing thinking. These findings support the argument that identifying students' intuitive thinking and how it develops in different instructional contexts can support the development of more effective science pedagogy.

  • 433.
    Adbo, Karina
    et al.
    Högskolan i Kalmar, Naturvetenskapliga institutionen.
    Taber, Keith
    Learners' Mental Models of the Particle Nature of Matter: A study of 16-year-old Swedish science students2009Ingår i: International Journal of Science Education, ISSN 0950-0693, E-ISSN 1464-5289, Vol. 31, nr 6, s. 757-786Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    The results presented here derive from a longitudinal study of Swedish upper secondary science students' (16-19 years of age) developing understanding of key chemical concepts. The informants were 18 students from two different schools. The aim of the present study was to investigate the mental models of matter at the particulate level that learners develop. Data were collected using semi-structured interviews based around the students' own drawings of the atom, and of solids, liquids, and gases. The interview transcripts were analysed to identify patterns in the data that offer insight into aspects of student understanding. The findings are discussed in the specific curriculum context in Swedish schools. Results indicate that the teaching model of the atom (derived from Bohr's model) commonly presented by teachers and textbook authors in Sweden gives the students an image of a disproportionately large and immobile nucleus, emphasises a planetary model of the atom and gives rise to a chain of logic leading to immobility in the solid state and molecular breakdown during phase transitions. The findings indicate that changes in teaching approaches are required to better support learners in developing mental models that reflect the intended target knowledge.

  • 434.
    Adbo, Karina
    et al.
    Linnéuniversitetet, Fakulteten för Hälso- och livsvetenskap (FHL), Institutionen för biologi och miljö (BOM).
    Vidal Carulla, Clara
    Linnéuniversitetet, Fakulteten för Hälso- och livsvetenskap (FHL), Institutionen för biologi och miljö (BOM).
    Designing play-based learning chemistry activities in the preschool environment2019Ingår i: Chemistry Education Research and Practice, ISSN 1756-1108, E-ISSN 1756-1108, Vol. 20, nr 3, s. 542-553Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    This study focuses on the design of play-based learning activities for chemistry in preschool. Viewing chemistry as a part of our past and present culture instead of as a subject, provides the backdrop for a more holistic approach to chemistry within this specific environment. A cultural-historical perspective, together with scaffolding, emergent science skills and sustained shared thinking, made up the framework for the design of the learning activities. Results show that when scaffolding and emergent science skills are used within the design, they provide good support for both the content and the teacher in the actual learning situation. Working with scaffolding was also beneficial for professional development. However, for a progressive and inclusive activity design, it is essential to take into account aspects of the immediate environment and methods for direct evaluation.

  • 435. Adcock, Edward P.
    et al.
    Varlamoff, Marie-Thérèse
    Kremp, Virginie
    IFLA-ina nacela za skrb i rukovanje knjiznicnom gradom: IFLA principles for the care and handling of library material2003Övrigt (Övrig (populärvetenskap, debatt, mm))
  • 436.
    Addassi, Mouadh
    et al.
    Technical University of Denmark, Denmark.
    Johannesson, Björn
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för byggteknik (BY).
    Wadsö, Lars
    Lund University.
    Inverse analyses of effective diffusion parameters relevant for a two-phase moisture model of cementitious materials2018Ingår i: Cement and Concrete Research, ISSN 0008-8846, E-ISSN 1873-3948, Vol. 106, s. 117-129Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Here we present an inverse analyses approach to determining the two-phase moisture transport properties re-levant to concrete durability modeling. The purposed moisture transport model was based on a continuumapproach with two truly separate equations for the liquid and gas phase being connected by the sorption ki-netics. The moisture properties of ten binder-systems containingfly ash, calcined clay, burnt shale and graymicro-filler, were investigated experimentally. The experiments used were, (i) sorption test (moisturefixation),(ii) cup test in two different relative humidity intervals, (iii) drying test, and, (iv) capillary suction test. Masschange over time, as obtained from the drying test, the two different cup test intervals and the capillary suctiontest, was used to obtain the effective diffusion parameters using the proposed inverse analyses approach. Themoisture properties obtained with the proposed inverse analyses method provide a good description of the testperiod for the ten different binder-systems.

  • 437.
    Addassi, Mouadh
    et al.
    Technical University of Denmark, Denmark.
    Schreyer, Lynn
    Washington State University, USA.
    Johannesson, Björn
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för byggteknik (BY).
    Lin, Hai
    University of Colorado Denver, USA.
    Pore-scale modeling of vapor transport in partially saturated capillary tube with variable area using chemical potential2016Ingår i: Water resources research, ISSN 0043-1397, E-ISSN 1944-7973, Vol. 52, nr 9, s. 7023-7035Artikel i tidskrift (Refereegranskat)
    Abstract [en]

    Here we illustrate the usefulness of using the chemical potential as the primary unknown by modeling isothermal vapor transport through a partially saturated cylindrically symmetric capillary tube of variable cross-sectional area using a single equation. There are no fitting parameters and the numerical solutions to the equation are compared with experimental results with excellent agreement. We demonstrate that isothermal vapor transport can be accurately modeled without modeling the details of the contact angle, microscale temperature fluctuations, or pressure fluctuations using a modification of the Fick-Jacobs equation. We thus conclude that for a single, axisymmetric pore, the enhancement factor depends upon relative humidity boundary conditions at the liquid bridge interfaces, distance between liquid bridges, and bridge lengths.

  • 438.
    Adebayo, Stephen
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för informatik (IK).
    Perceived impacts of Cloud Computing adoption on the role of an IT department of a higher institution in a developing country.2019Självständigt arbete på avancerad nivå (magisterexamen), 40 poäng / 60 hpStudentuppsats (Examensarbete)
    Abstract [en]

    Cloud computing popularity has continued to be on the increase side, and it has been significant contributory factor to the of 24/7 365 days business culture of the digital 21st century where data and data centers are accessed via the internet through any connected device, anytime and from anywhere. Higher Education Institutions (HEI) or Tertiary Education Institution (TEI) are also among organisations, medium and large, that are tapping into this trend by gradually adopting this technology to reduce their high budgets in the prevailing face of financial shortage. This has particularly made the technology attractive to TEI in developing countries, and more of them are adopting the services being offered by cloud computing. The adoption of this technology however, affects the way and manner by which IT services are being delivered traditionally by the TEI IT or ICT departments. The objective of this study therefore, is to explore the adoption of this phenomenal technology and its impact on the role of traditional IT department in one of the tertiary education institution in the South Western part of Nigeria. The TOE framework adoption model was used to explore the adoption factors, and interviews conducted within the ICT department of the institution as part of the empirical findings process. In contrary to popular belief, no member of the IT staff has lost his or her job yet based on the adoption despite the impact on the skills and culture in service delivery of the department. IT staffs were encouraged to adapt to the change as quickly as possible with trainings given, and the ICT, thus the HEI have value added as most of the services are now available on a 24-hour basis to users, even while off campus and far remote, a dream very difficult and near impossible in the days of full traditional IT services delivery.

  • 439.
    Adegoke, Adekunle
    et al.
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för datavetenskap (DV).
    Osimosu, Emmanuel
    Linnéuniversitetet, Fakulteten för teknik (FTK), Institutionen för datavetenskap (DV).
    Service Availability in Cloud Computing: Threats and Best Practices2013Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [en]

    Cloud computing provides access to on-demand computing resources and storage space, whereby applications and data are hosted with data centers managed by third parties, on a pay-per-use price model. This allows organizations to focus on core business goals instead of managing in-house IT infrastructure.                    

    However, as more business critical applications and data are moved to the cloud, service availability is becoming a growing concern. A number of recent cloud service disruptions have questioned the reliability of cloud environments to host business critical applications and data. The impact of these disruptions varies, but, in most cases, there are financial losses and damaged reputation among consumers.        

    This thesis aims to investigate the threats to service availability in cloud computing and to provide some best practices to mitigate some of these threats. As a result, we identified eight categories of threats. They include, in no particular order: power outage, hardware failure, cyber-attack, configuration error, software bug, human error, administrative or legal dispute and network dependency. A number of systematic mitigation techniques to ensure constant availability of service by cloud providers were identified. In addition, practices that can be applied by cloud customers and users of cloud services, to improve service availability were presented.

  • 440.
    Adel Ali, Sura
    Linnéuniversitetet, Fakulteten för Hälso- och livsvetenskap (FHL), Institutionen för kemi och biomedicin (KOB).
    Kan manuell analys av Csv-EPK ersättas med automatiserad analys på Sysmex XN-1000?2016Självständigt arbete på grundnivå (kandidatexamen), 180 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    SAMMANFATTNING

    Bestämning av antalet erytrocyter i cerebrospinalvätska (Csv-EPK) används för att utesluta olika intrakraniella blödningar, särskilt subaraknoidalblödning (SAB). SAB betyder en blödning mellan pia mater och araknoidea som uppstår på grund av ruptur av ett aneurysm i subaraknoidalrummet. Manuell räkning av antalet erytrocyter i cerebrospinalvätska med Bürkers kammare och mikroskopi har varit den gyllene standarden under de senaste decennierna, men den manuella metoden är tidskrävande och kräver stor erfarenhet. Syftet med detta examensarbete var att utvärdera om manuell analys av Csv-EPK med räknekammare och ljusmikroskopi kan ersättas med automatisk analys av Csv-EPK med hematologianalysatorn XN-1000 (Sysmex). Fyrtioåtta cerebrospinalvätskeprover med varierande koncentrationer av antalet erytrocyter framställdes genom att späda kända koncentrationer av erytrocyter i cellfri Csv. Framställda Csv-prover med tillsatta erytrocyter analyserades först på XN-1000. Efter detta utfördes manuell räkning av erytrocyter i Bürkers kammare. En linjär regression upprättades för att beskriva korrelation mellan automatiserad analys av Csv-EPK och manuell analys av Csv-EPK. Imprecisionen avseende analys av Csv-EPK på XN-1000 (Sysmex) bedömdes genom inom-serie-imprecision. En mycket god korrelation (r = 0,999) fanns mellan XN-1000 och manuell räkning. För analysresultat inom det lägre område 100 - 5000 (106/L) var korrelationen också god (r = 0,997). Variationskoefficienten var 19,8 % vid Csv-EPK på 370 x 106/L respektive 3,1 % vid Csv-EPK på 25950 x 106/L. Känsligheten för analys av Csv-EPK på XN-1000 var 370 x 106/L. Slutsatsen är att analys av Csv-EPK på XN-1000 kan användas för klinisk diagnostik av Csv-prover. Däremot bör det noteras att XN-1000 har sämre känslighet för låga Csv-EPK värden < 370 x 106/L. För att kunna säkerställa hög diagnostisk kvalitet även på Csv-prover med låga erytrocytantal rekommenderas en referensgräns på < 500 x 106/L som praktisk cut off för kompletterande mikroskopisk räkning vid rutinsjukvårdslaboratorier.

  • 441.
    Adell, Jenny
    Linnéuniversitetet, Fakulteten för Hälso- och livsvetenskap (FHL), Institutionen för kemi och biomedicin (KOB).
    Isolering och identifiering av bakterie som orsakar missfärgning på kött2017Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Kött är skelettmuskler från olika djur som till exempel gris, nötdjur eller får. På kött kan många bakterier tillväxa. Pseudomonas är ett släkte bakterier som vanligen orsakar att mat blir dålig. De finns i vår omgivning och kan ge problem bland annat på grund av biofilmbildning inom sjukvård och på livsmedelsindustrier. Slakteriet KLS Ugglarps har tidigare sett att vissa styckningsdetaljer av gris blivit missfärgade med en blå färg och ville ta reda på orsaken till detta. Berörda delar var främst karré och kotlett. Pseudomonas aeruginosa hade tidigare hittats i lokalerna och misstänktes även i detta fall.Kött, både med och utan missfärgningar, undersöktes med hjälp av olika mikrobiologiska metoder för att se vilken bakterie som var orsaken till den blå färgen. Renodling och isolering utfördes och analyser gjordes med hjälp av API 20NE, gramfärgning och oxidastest för att kunna identifiera bakterien och ett referensisolat användes som kontroll. Det visade sig att det inte var P. aeruginosa utan istället en Pseudomonas fluorescens och denna kunde säkerställas som orsaken till blåfärgen genom att den isolerade bakterien från köttet ympades till sterilt kött och då gav en blå färg igen efter inkubering. En smittspårning utfördes i produktionslokalen för att se om bakterien kunde hittas innan uppstart samt under produktionens gång. Proverna visade vid odling att det fanns ytor i lokalen som var odlingspositiva för Pseudomonas.

  • 442.
    Adell, Regina
    et al.
    Linnéuniversitetet, Fakulteten för samhällsvetenskap (FSV), Institutionen för socialt arbete (SA).
    Andersson, Felicia
    Linnéuniversitetet, Fakulteten för samhällsvetenskap (FSV), Institutionen för socialt arbete (SA).
    Barnets bästa i umgänges– och vårdnadstvister: En diskursanalys av svenska domstolars resonemang2015Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [en]

    The aim of this study was to analyse how Swedish courts reason about the child's best in custody and access disputes. We have assumed different themes to analyse our empirical data, these themes were the child's best interests, perspective on the child's best interests, child's perspective, children as subjects or objects and finally the right of the child or the child's best interests. Our empirical data have consisted of 15 City Court and Court of Appeal judgments of the Swedish courts handed down in 2015. The study had a qualitative disposition and the selection was made strategically to make sure the empirical data would be relevant to our issues. We have used a discourse analysis where the intention was to study how the court reason about the child’s interests and what statements that gets preference and what gets excluded in the assessment. Our theoretical starting point was extracted from Foucault’s theory about power and his discourse concept. We have used the concept of his theory in our analysis, but also extracted the theoretical concepts from previous research. The result shows that the Court's assessment of what is in the child’s best interest is based primarily on a professional and adult perspective on the child's situation. The individual child's perspective was excluded and the Court was principally talking about children's needs and interests in general. The result also showed that children were seen as objects and not as participants in the majority of the cases.

  • 443.
    Ademi, Besarta
    Linnéuniversitetet, Fakultetsnämnden för hälsa, socialt arbete och beteendevetenskap, Institutionen för pedagogik, psykologi och idrottsvetenskap, PPI.
    Tvåspråkiga elever: En undersökning om elevers inställning till sin tvåspråkighet.2011Självständigt arbete på avancerad nivå (yrkesexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Syfte: Syftet med den här studien är att ta reda på hur elever med svenska som andra språk, beskriver sina erfarenheter av att vara tvåspråkiga. Syftet med studien är också att ta reda på vad fördelarna respektive nackdelarna är att vara tvåspråkig i skolan.

    Metod: Undersökningsmetoden för studien är en kvalitativ metod med intervjuer av fem informanter.

    Resultat: Studien visar att elevers förhållningssätt gentemot sin tvåspråkighet är positiv. Eleverna anser att kunna två språk är en fördel samt att det leder färdigheter av förståelse av andra kulturer och kunskap i andra ämnen. Att bevara modersmålet anses också något som en viktig del av elevernas inställning till sina två språk vare sig det gäller att man förstärker den genom sin omgivning eller i undervisning. Omgivningen lägger också mycket intryck på deras tvåspråkighet, där positiva fördelarna också framhävs mer genom att eleverna aktivt använder språket med familjen, vänner och i skolan.

  • 444.
    Ademi, Besarta
    et al.
    Linnéuniversitetet, Fakultetsnämnden för hälsa, socialt arbete och beteendevetenskap, Institutionen för pedagogik, psykologi och idrottsvetenskap, PPI.
    Sjöholm, Anna Carin
    Linnéuniversitetet, Fakultetsnämnden för hälsa, socialt arbete och beteendevetenskap, Institutionen för pedagogik, psykologi och idrottsvetenskap, PPI.
    Mobbning i skolan: Elevers hälsa och de olika mobbningsstrategierna2011Studentarbete övrigt, 10 poäng / 15 hpStudentuppsats (Examensarbete)
  • 445.
    Ademi, Besarta
    et al.
    Linnéuniversitetet, Fakultetsnämnden för hälsa, socialt arbete och beteendevetenskap, Institutionen för pedagogik, psykologi och idrottsvetenskap, PPI.
    Sjöholm, Anna Carin
    Linnéuniversitetet, Fakultetsnämnden för hälsa, socialt arbete och beteendevetenskap, Institutionen för pedagogik, psykologi och idrottsvetenskap, PPI.
    Mobbning i skolan: Elevers hälsa och de olika mobbningsstrategierna2011Självständigt arbete på grundnivå (yrkesexamen), 15 poäng / 22,5 hpStudentuppsats (Examensarbete)
    Abstract [sv]

    Bakgrund: I dagens skola finns det elever som tyvärr blir trakasserade av andra elever. Mobbning är ett problem som existerar i dagens skola som behöver lyftas fram samt där alla inom skolverksamheten blir medvetna om vad mobbning kan orsaka för negativa effekter.

    Syfte: Vi vill med denna litteraturstudie undersöka hur mobbning kan påverka barn och ungdomars hälsa samt undersöka hur olika metoder och strategier av mobbning används för att mobba.

    Metod: Det här är en systematisk litteraturstudie där vi sökte inom databaserna: ELIN, ERIC och Libris. Vi har använt oss av sju olika vetenskapliga artiklar i vår studie.

    Resultat: Vi har med vår litteraturstudie kommit fram att ungdomars psykiska hälsa påverkas starkt av mobbning oberoende om man är offer till mobbning eller en mobbare som utför trakasserier. I vår undersökning har vi även funnit att metoden för att utföra mobbning via nätet samt användningen av elektronik är en strategi för att trakassera individer.

    Slutsats: Dagens skola behöver vara uppmärksam att mobbning kan förekomma ur olika strategier. Nätmobbning ingår i den verbala mobbningen. Det är ett nytt och modern sätt för ungdomarna att använda sig av för att hota och trakassera en individ. Men också en av de lättaste att upptäcka än exempelvis tyst mobbning samt är en av de enklaste att upptäcka. Det är också viktigt att påpeka att individer oavsett de som blir utsatta av mobbning och de som utför handlingarna inte mår bra av mobbning.

     

  • 446.
    Aden, Mukhtar
    Linnéuniversitetet, Fakulteten för samhällsvetenskap (FSV), Institutionen för statsvetenskap (ST).
    Libyenkrisen – en humanitär intervention?: En kvalitativ textanalys som syftar till att förklara motiven bakom NATO:s och FN:s beslut att intervenera Libyen2015Självständigt arbete på grundnivå (kandidatexamen), 10 poäng / 15 hpStudentuppsats (Examensarbete)
    Abstract [en]

    Humanitarian intervention is a concept that generates several problems in our time. The idea of humanitarian intervention concerns the modern norms of sovereignty and noninterventional principals. It also concerns the conventional norm, which declares that states are not allowed to interfere in other states’ internal affairs. The use of military force to implement humanitarian intervention is restricted according to international law. This is what this thesis intends to investigate. The purpose was to find out the causes behind the intervention in Libya, which was carried out by NATO. The main questions were (1) to find out if the intervention in Libya was a humanitarian intervention (2) or if there were other motives that were behind the intervention. Two classical international relations theories have been utilized for the analysis. The analysis focused on the five UN Security Council members’ statements and arguments, which have been expressed in the UN Security Council. This issue created a gap between the members of the Security Council, especially between the Western states and the Russian and Chinese authorities

  • 447.
    Adenier, Guillaume
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Local Realist Approach and Numerical Simulations of Nonclassical Experiments in Quantum Mechanics2008Doktorsavhandling, monografi (Övrigt vetenskapligt)
    Abstract [en]

    Local Realist Approach and Numerical Simulations of Nonclassical Experiments in Quantum Mechanics was constructed.

  • 448.
    ADENIER, Guillaume
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Probabilistic Analysis of the EPR-Bohm Experiment2007Licentiatavhandling, monografi (Övrigt vetenskapligt)
    Abstract [en]

    Bell's Theorem was developed on the basis of considerations

    involving a linear combination of spin correlation functions, each

    of which has a distinct pair of arguments. The simultaneous

    presence of these different pairs of arguments in the same

    equation is investigated, and the implicit counterfactual

    assumption in Bell's theorem is discussed.

    We show how an explicit contextuality can arise from a model

    displaying unfair sampling, and we discuss it in the

    framework of David Mermin's cleverly simple version of Bell's

    theore, which pinpoints in a very straightforward way how

    interpreting entanglement from a realistic point of view can be

    problematic. We present an extended version of Mermin's device

    that can actually be given a straightforward realistic

    interpretation.

    We stress that the low efficiency of detectors in all experiments

    with photons makes the use of the fair sampling assumption

    unavoidable. Since this very assumption is false in all existing

    local realistic models based on inefficient detection, we thus

    question its validity. We show that it is no more reasonable to

    assume fair sampling than it is impossible to test, and we

    actually propose an experimental test which would provides clear

    cut results in case of unfair sampling

    We then analyze optical EPR experimental data performed by Weihs et al in Innsbruck 1997-1998. We show that for some linear

    combinations of the raw coincidence rates, the experimental

    results display some anomalous behavior that a more general source state (like non-maximally entangled state) cannot

    straightforwardly account for. We use the fair sampling

    assumption, and assume explicitly that the detection efficiencies

    for the pairs of entangled photons can be written as a product of

    the two corresponding detection efficiencies for the single

    photons. We show that this explicit use of fair sampling cannot be

    maintained to be a reasonable assumption as it leads to an

    apparent violation of the no-signalling principle.

  • 449.
    Adenier, Guillaume
    et al.
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Khrennikov, Andrei
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Fair sampling and rotational invariance in EPR experiments2007Ingår i: The Nature of Light: What Are Photons?, 2007Konferensbidrag (Övrigt vetenskapligt)
    Abstract [en]

    We have previously shown that the use of the fair sampling assumption in EPR experiments could be questioned on the basis of experimental data. We continue our analysis of the data from the optical EPR experimental performed by Weihs et al. in Innsbruck 1997-1998, and we discuss whether a non-rotationally invariant source can account for the experimental results.

  • 450.
    Adenier, Guillaume
    et al.
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Khrennikov, Andrei
    Växjö universitet, Fakulteten för matematik/naturvetenskap/teknik, Matematiska och systemtekniska institutionen.
    Fair Sampling vs No-Signalling Principle in EPR experiments2007Ingår i: Beyond the Quantum, World Scientific Publishing, Singapore , 2007, s. 181-187Konferensbidrag (Övrig (populärvetenskap, debatt, mm))
    Abstract [en]

    We present some recent results of a new statistical analysis of the optical EPR experiment performed by Weihs et al in Innsbruck 1997-1998. Under the commonly used assumption of fair sampling, we show that the coincidence counts exhibit a small and anomalous non-signalling component, which seems impossible to explain by using the conventional quantum mechanics, and we discuss some possible interpretations of this phenomenon.

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