hig.sePublications
Change search
Refine search result
37383940414243 1951 - 2000 of 26579
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf
Rows per page
  • 5
  • 10
  • 20
  • 50
  • 100
  • 250
Sort
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
  • Standard (Relevance)
  • Author A-Ö
  • Author Ö-A
  • Title A-Ö
  • Title Ö-A
  • Publication type A-Ö
  • Publication type Ö-A
  • Issued (Oldest first)
  • Issued (Newest first)
  • Created (Oldest first)
  • Created (Newest first)
  • Last updated (Oldest first)
  • Last updated (Newest first)
  • Disputation date (earliest first)
  • Disputation date (latest first)
Select
The maximal number of hits you can export is 250. When you want to export more records please use the Create feeds function.
  • 1951.
    Barreiro-Gen, Maria
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Carpenter, Angela
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production. School of Earth and Environment, University of Leeds, Leeds, UK.
    von Haartman, Robin
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Lozano, Rodrigo
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production. Organisational Sustainability Ltd., Cardiff, UK.
    Examining Relations Between Public Participation and Public Expenditure: Opinions from English and French Users on Environmental Issues in the English Channel2019In: Sustainability, E-ISSN 2071-1050, Vol. 11, no 8, article id 2230Article in journal (Refereed)
    Abstract [en]

    Governments need to decide how to allocate their public expenditure, which is commonly misconstrued as simply targeting social issues. Most scientific literature highlights that the role of public spending is to enhance social welfare and fight poverty and inequality. Nonetheless, public expenditure also includes spending on environmental issues. This paper analyses relations between public participation, support for public expenditure, and pro-environmental behaviour (PEB) intentions in the English Channel region. An online public survey was developed to investigate public use of the English and French sides and the public's willingness to change their behaviour to better protect the Channel region. The survey was undertaken in the summer of 2014 and was answered by 2000 respondents. The Channel region public is willing to participate more in behaviour that involves direct changes or switches between buying/purchasing choices. In contrast, there is less willingness to engage in pro-environmental behaviour intentions that involve more active engagement activities. French respondents were slightly less inclined to change their consumer behaviour intentions, while women and older people were slightly more likely to do so. This research shows that pro-environmental behaviour could positively affect support for proposed public expenditure on environmental issues.

    Download full text (pdf)
    fulltext
  • 1952.
    Barreiro-Gen, Maria
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production. University of Gävle.
    Lozano, Rodrigo
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Analysing the incorporation of Sustainable Development into European Higher Education Institutions’ curricula2019Conference paper (Other academic)
    Download full text (pdf)
    Presentation
  • 1953.
    Barreiro-Gen, Maria
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Lozano, Rodrigo
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    How circular is the circular economy? Analysing the implementation of circular economy in organisations2020In: Business Strategy and the Environment, ISSN 0964-4733, E-ISSN 1099-0836, Vol. 29, no 8, p. 3484-3494, article id 2590Article in journal (Refereed)
    Abstract [en]

    Circular Economy (CE) has become one of the most recent ways to address environmental sustainability. CE activities focus exclusively on one of three levels (macro-level, meso-level, and micro-level). The majority of CE research has focused on the macro- and meso-levels, while research on the micro-level has been limited. This paper focusses on the latter by analysing how organisations have implemented the four Rs (reduction, repairing, remanufacturing, and recycling). A survey was sent to a database of 5,299 contacts from different organisations, from whom 256 complete responses were obtained. The results show that organisations focus on reducing and recycling more than repairing and remanufacturing, and in particular on internal CE efforts. Some organisations that engage with the 4Rs do not do it under the CE umbrella, whereas some that claim to apply CE have low levels of engagement with the 4Rs. The results indicate that organisations are using the four Rs to contribute to CE, but not all of them are aware that they are applying CE principles. The paper highlights that organisations need to improve their four Rs efforts to contribute more to CE by better linking its theory with practice. CE also has to be implemented outside the organisations, in a more holistic way, e.g. through better collaboration with stakeholders on CE efforts and activities. This research stresses that the gap between CE theory and practice needs to be closed to make Circular Economy circular.

    Download full text (pdf)
    fulltext
  • 1954.
    Barreiro-Gen, Maria
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Lozano, Rodrigo
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Carpenter, Angela
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Bautista-Puig, Núria
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Analysing sustainability change management in government owned companies: Experiences from European ports2023In: Social Responsibility Journal, ISSN 1747-1117, E-ISSN 1758-857X, Vol. 19, no 6, p. 1037-1050Article in journal (Refereed)
    Abstract [en]

    Purpose

    Government-owned companies (GOCs), such as ports, have engaged in efforts to become more sustainable. Most of such efforts have been technological and policy ones and mainly focusing on the environment, with limited research on organisational change management. This paper aims to provide insights into how ports have been addressing sustainability change forces and pressures.

    Design/methodology/approach

    Twelve semi-structured interviews were conducted with top-level directors and sustainability managers, representing ports across Europe’s maritime regions and a range of port types and sizes. The interviews were analysed using grounded theory’s constant comparative analysis.

    Findings

    The findings highlighted that the ports’ success in their process to become more sustainable depends on how they take advantage of the thrust forces and reduce the drag ones. The findings serve to develop the “ports’ sustainability change management framework”, with five stages: reactive, proactive, transactive, interactive, and sustainable port.

    Practical implications

    Ports, and other GOCs, should capitalise on their private–public nature in their contribution to making societies more sustainable by adopting a holistic perspective and interactive changes.

    Originality/value

    This paper provides a dynamic perspective on corporate sustainability efforts, particularly on GOCs, through organisational change management complementing technocentric and managerial approaches.

    Download full text (pdf)
    fulltext
  • 1955.
    Barreiro-Gen, Maria
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Lozano, Rodrigo
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Temel, Melis
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Carpenter, Angela
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Exploring new waters for sustainability: gender equality in European seaports2021Conference paper (Refereed)
    Abstract [en]

    Ports have been working towards becoming more sustainable. Although gender equality (SDG5) is very important within the 17 United Nations Sustainable Development Goals, it is ranked almost at the bottom of port priorities. The aim of this research is to provide insights into how ports have been addressing gender equality in their efforts to contribute to sustainability. Twelve semi-structured interviews were conducted with directors and sustainability managers from six European countries. The responses from interviewees were analysed using Grounded Theory’s constant comparative analysis.

    The findings show that European ports have engaged in measures aimed at contributing to sustainability through gender equality classified in five stages: (1) Gender segregation, which needs to be overcome, and is, in many cases, the starting point; (2) Compliance with national laws and regulation, e.g. in recruitment and salaries; (3) Gender equity, reducing barriers to entry and compensate for the historical and social disadvantages that women had previously suffered from; (4) Gender equality, guaranteeing the equal treatment of men and women in all processes; and (5) More sustainable ports. Achieving gender equality is a sine qua non to make ports more sustainable, i.e. integrating social issues of sustainability with economic and environmental ones. Internal and external forces affect each of the stages, where thrust forces help ports reduce gender segregation and advance towards becoming more sustainability and drag forces slow or block the efforts and may lead to returning to a previous stage. The findings were used to develop a “Gender equality for sustainability in ports” framework.

    This research is especially related to SDG5, target 5.1 (End all forms of discrimination against all women and girls everywhere), and 5.5 (Ensure women’s full and effective participation and equal opportunities for leadership at all levels of decision-making in political, economic and public life). 

    Ports, and other traditionally male-dominated industries, could capitalise on women’s holistic perspective and higher engagement to better contribute to accelerating the progress to make Europe more sustainable, especially in these testing times.

  • 1956.
    Barreiro-Gen, Maria
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Lozano, Rodrigo
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Temel, Melis
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Carpenter, Angela
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Gender equality for sustainability in ports: Developing a framework2021In: Marine Policy, ISSN 0308-597X, E-ISSN 1872-9460, Vol. 131, article id 104593Article in journal (Refereed)
    Abstract [en]

    Ports have increasingly been addressing sustainability issues; however, gender equality has been a low priority in such efforts. This paper is aimed at providing insights into how ports have been addressing gender equality to contribute to sustainability. Twelve semi-structured interviews were conducted with top-level port managers from six European countries. The responses from the interviewees were analysed using Grounded Theory’s constant comparative analysis. The findings show that European ports have engaged in gender equality measures aimed at contributing to sustainability through gender equality in five stages: (1) Gender segregation, which needs to be overcome, and is, in many cases, the starting point; (2) Compliance with national laws and regulation; (3) Gender equity; (4) Gender equality; and (5) More sustainable ports. Internal and external forces affect each of the stages, where thrust forces help ports reduce gender segregation and advance towards becoming more sustainable and drag forces slow or block the efforts and may lead to returning to a previous stage of the framework. The findings were integrated to develop a “Gender equality for sustainability in ports” framework. Gender equality is a sine qua non for ports, and other male oriented industries, in becoming more sustainable.

    Download full text (pdf)
    fulltext
  • 1957.
    Barreiro-Gen, Maria
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production. University of Gävle.
    Lozano, Rodrigo
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Zafar, Afnan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management. University of Gävle, Center for Logistics and Innovative Production.
    Changes in Sustainability Priorities in Organisations due to the COVID-19 Outbreak: Averting Environmental Rebound Effects on Society2020In: Sustainability, E-ISSN 2071-1050, Vol. 12, no 12, article id 5031Article in journal (Refereed)
    Abstract [en]

    The COVID-19 outbreak has affected societies and organisations in an unprecedented way. This has resulted in negative impacts to economic and social issues, but it is a “blessing in disguise” for environmental issues. This paper analyses how the outbreak has affected organisations’ sustainability priorities. Prior to the COVID-19 outbreak, such priorities were on the economic dimension followed by the environmental and social dimensions. A survey was sent to 11,657 organisations to analyse such changes, with a 5.60% response rate. The results show that for organisations, the main priority is now on the social dimension, followed by the economic one; however, the environmental dimension has suffered a negative impact in prioritisation, regardless of organisation type, country where they are based, organisation size, or the time they have been working on sustainability. We are currently facing an environmental conundrum, where air quality has improved and pollution has decreased in societies, but organisations are starting to neglect such environmental issues. The COVID-19 outbreak is an opportunity for organisations to better contribute to sustainability by ensuring that the efforts that have been undertaken in the last three decades are not forgotten, and that societies and organisations are better coupled to face such crises and avert rebound effects.

    Download full text (pdf)
    fulltext
  • 1958.
    Barreiro-Gen, Maria
    et al.
    Economic Development and Social Sustainability Research Unit, Department of Economic Analysis and Business Administration, Faculty of Economics and Business, University of A Coruna, Elviña, A Coruña, Spain.
    Novo-Corti, Isabel
    Economic Development and Social Sustainability Research Unit, Department of Economic Analysis and Business Administration, Faculty of Economics and Business, University of A Coruna, Elviña, A Coruña, Spain.
    Collaborative learning in environments with restricted access to the internet: Policies to bridge the digital divide and exclusion in prisons through the development of the skills of inmates2015In: Computers in human behavior, ISSN 0747-5632, E-ISSN 1873-7692, Vol. 51, no B, p. 1172-1176Article in journal (Refereed)
    Abstract [en]

    The deprivation of freedom for the prisoners, involves not only physical isolation, but also digital, which implies a strong isolation particularly painful in an “information society”. Spanish prison population is deprived of access Internet and all ICT that could contact inmates with outdoor life, this is mainly due to security issues. Not having enough ICT skills is a new cause of social exclusion. The objective of this research was to identify the key issues which should be focused by policy makers to avoid digital divide among prison population. A survey among inmate population in all the five penitentiary centers in Galicia, in the northwest of Spain, was undertaken to obtain a sample of 380 inmates. A Structural Equation Model (SEM) was carried out to explain prisoners’ ICT Skills, in bias to inmate’s social skills, general skills and attitude towards collaborative learning. For inmates, who are characterized by their low education level, results shown the relevance of having general and social skills to be able to have more ICT skills. Then, collaborative learning in prison it is shown as a way to bridge both walls: the physical (better reinsertion and no recidivism) and the digital one.

    Download full text (pdf)
    fulltext
  • 1959.
    Barreiro-Gen, Maria
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Industrial Management, Industrial Design and Mechanical Engineering, Industrial Management.
    Renzi, Maria Francesca
    Department of Business Studies, Roma Tre University, Rome, Italy.
    Tortato, Cíntia S. B.
    Department of Human Sciences and Education, Instituto Federal de Educação, Ciência e Tecnologia do Paraná (IFPR), Curitiba, Paraná, Brazil.
    Editorial: Women in sustainability: organizational sustainability 20212023In: Frontiers in Sustainability, E-ISSN 2673-4524, Vol. 4, article id 1240059Article in journal (Refereed)
    Download full text (pdf)
    fulltext
  • 1960. Barrera, T
    et al.
    Hast, Anders
    University of Gävle, Department of Mathematics, Natural and Computer Sciences, Ämnesavdelningen för datavetenskap.
    Bengtsson, E
    A Fast All-Integer Ellipse Discretization Algorithm2003In: Graphics Programming Methods / [ed] Jeff Lander, Hingham, Mass.: Charles River Media , 2003, p. 121-132Chapter in book (Other academic)
  • 1961. Barrera, T
    et al.
    Hast, Anders
    University of Gävle, Department of Mathematics, Natural and Computer Sciences, Ämnesavdelningen för datavetenskap.
    Bengtsson, E
    A Fast and Simple All-Integer Parametric Line2003In: Graphics Programming Methods / [ed] Jeff Lander, Hingham, Mass.: Charles River Media , 2003Chapter in book (Other academic)
  • 1962. Barrera, T
    et al.
    Hast, Anders
    University of Gävle, Department of Mathematics, Natural and Computer Sciences, Ämnesavdelningen för datavetenskap.
    Bengtsson, E
    Fast Near Phong-Quality Software Shading2006In: WSCG'06, 2006Conference paper (Refereed)
    Abstract [en]

    Quadratic shading has been proposed as a technique giving better results than Gouraud shading, but which is substantially faster than Phong shading. Several techniques for fitting a second order surface to six points have been proposed. We show in this paper how an approximation of the mid-edge samples can be done in a very efficient way. An approximation of the mid-edge vectors are derived. Several advantages are apparent when these vectors are put into the original formulation. First of all it will only depend on the vertex vectors. Moreover, it will simplify the setup and no extra square roots are necessary for normalizing the mid-edge vectors. The setup will be about three times faster than previous approaches. This makes quadratic shading very fast for interpolation of both diffuse and specular light, which will make it suitable for near Phong quality software renderings.

  • 1963. Barrera, T
    et al.
    Hast, Anders
    University of Gävle, Department of Mathematics, Natural and Computer Sciences, Ämnesavdelningen för datavetenskap.
    Bengtsson, E
    Faster shading by equal angle interpolation of vectors2004In: IEEE Transactions on Visualization and Computer Graphics, ISSN 1077-2626, E-ISSN 1941-0506, Vol. 10, no 2, p. 217-223Article in journal (Refereed)
    Abstract [en]

    In this paper, we show how spherical linear interpolation can be used to produce shading with a quality at least similar to Phong shading at a computational effort in the inner loop that is close to that of the Gouraud method. We show how to use the Chebyshev's recurrence relation in order to compute the shading very efficiently. Furthermore, it can also be used to interpolate vectors in such a way that normalization is not necessary, which will make the interpolation very fast. The somewhat larger setup effort required by this approach can be handled through table look up techniques.

  • 1964. Barrera, T
    et al.
    Hast, Anders
    University of Gävle, Department of Mathematics, Natural and Computer Sciences, Ämnesavdelningen för datavetenskap.
    Bengtsson, E
    Incremental Spherical Linear Interpolation2004In: Sigrad 2004, 2004, p. 7-10Conference paper (Refereed)
  • 1965. Barrera, T
    et al.
    Hast, Anders
    University of Gävle, Department of Mathematics, Natural and Computer Sciences, Ämnesavdelningen för datavetenskap.
    Bengtsson, E
    Surface Construction with Near Least Square Acceleration based on Vertex Normals on Triangular Meshes2002In: Proceedings from Sigrad 2002, 2002, p. 43-48Conference paper (Refereed)
  • 1966. Barrera, Tony
    et al.
    Hast, Anders
    University of Gävle, Department of Mathematics, Natural and Computer Sciences, Ämnesavdelningen för datavetenskap.
    Bengtsson, Ewert
    Connected Minimal Acceleration Trigonometric Curves2005Conference paper (Refereed)
    Abstract [en]

    We present a technique that can be used to obtain a series of connected minimal bending trigonometric splines that will intersect any number of predefined points in space. The minimal bending property is obtained by a least square minimization of the acceleration. Each curve segment between two consecutive points will be a trigonometric Hermite spline obtained from a Fourier series and its four first terms. The proposed method can be used for a number of points and predefined tangents. The tangent length will then be optimized to yield a minimal bending curve. We also show how both the tangent direction and length can be optimized to give as smooth curves as possible. It is also possible to obtain a closed loop of minimal bending curves. These types of curves can be useful tools for 3D modelling, etc.

  • 1967. Barrera, Tony
    et al.
    Hast, Anders
    University of Gävle, Department of Mathematics, Natural and Computer Sciences, Ämnesavdelningen för datavetenskap.
    Bengtsson, Ewert
    Minimal Acceleration Hermite Curves2005In: Game programming gems 5 / [ed] Kim Pallister, Hingham, Massachusetts: Charles River Media, inc. , 2005, p. 225-231Chapter in book (Other (popular science, discussion, etc.))
  • 1968. Barrera, Tony
    et al.
    Hast, Anders
    University of Gävle, Department of Mathematics, Natural and Computer Sciences, Ämnesavdelningen för datavetenskap.
    Bengtsson, Ewert
    Trigonometric Splines2008In: Game Programming Gems 7, Boston: Charles River Media , 2008, p. 191-198Chapter in book (Refereed)
  • 1969. Barrera, Tony
    et al.
    Spångberg, Daniel
    Hast, Anders
    University of Gävle, Department of Mathematics, Natural and Computer Sciences, Ämnesavdelningen för datavetenskap.
    Bengtsson, Ewert
    Vectorized table driven algorithms for double precision elementary functions using Taylor expansions2009In: APLIMAT 8th international conference, 2009, p. 231-246Conference paper (Refereed)
    Abstract [en]

    This paper presents fast implementations of the inverse square root and arcsine, both in double precision. In single precision it is often possible to use a small table and one ordinary Newton-Raphson iteration to compute elementary functions such as the square root. In double precision a substantially larger table is necessary to obtain the desired precision, or, if a smaller table is used, the additional Newton-Raphson iterations required to obtain the precision often requires the evaluation of other expensive elementary functions. Furthermore, large tables use a lot of the cash memory that should have been used for the application code.

    Obtaining the desired precision using a small table can instead be realised by using a higher order method than the second order Newton-Raphson method. A generalization of Newton's method to higher order is Householder's method, which unfortunately often results in very complicated expressions requiring many multiplications, additions, and even divisions.

    We show how a high-order method can be used, which only requires a few extra additions and multiplications for each degree of higher order. The method starts from the Taylor expansion of the difference of the value of the elementary function and a starting guess value for each iteration. If the Taylor series is truncated after the second term, ordinary Newton iterations are obtained. In several cases it is possible to algebraically simplify the difference between the true value and the starting guess value. In those cases we show that it is advantageous to use the Taylor series to higher order to obtain the fast convergent method. Moreover, we will show how the coefficients of a Chebyshev polynomial can be fitted to give as little error as possible for the functions close to zero and in the same time reduce the terms in the Taylor expansion.

    In the paper we benchmark two example implementations of the method on the x86_64 architecture. The first is the inverse square root, where the actual table (to 12 bit precision) is provided by the processor hardware. The inverse square root is important in many application programs, including computer graphics, and explicit particle simulation codes, for instance the Monte Carlo and Molecular Dynamics methods of statistical mechanics. The other example is the arcsine function, which has a slow converging Taylor expansion and where no tables are provided by the hardware. The vectorized versions of the implementations of the inverse square root are 3.5 times faster than compiled code on the Athlon64 and about 5 times faster on the Core 2. The scalar version of the arcsine function is, depending on order and table size, between 2 and 3 times faster than the compiled code, and the vectorized version is between 3 and 4 times faster on the Athlon64, while it is between 4 and 5 times faster than the compiled version on the Core 2.

  • 1970. Barrera, Tony
    et al.
    Spångberg, Daniel
    Hast, Anders
    University of Gävle, Department of Mathematics, Natural and Computer Sciences, Ämnesavdelningen för datavetenskap.
    Bengtsson, Ewert
    Vectorized table driven algorithms for double precision elementary functions using Taylor expansions2009In: Aplimat - Journal of Applied Mathematics, ISSN 1337-6365, Vol. 2, no 3, p. 171-188Article in journal (Refereed)
    Abstract [en]

    This paper presents fast implementations of the inverse square root and arcsine, both in double precision. In single precision it is often possible to use a small table and one ordinary Newton-Raphson iteration to compute elementary functions such as the square root. In double precision a substantially larger table is necessary to obtain the desired precision, or, if a smaller table is used, the additional Newton-Raphson iterations required to obtain the precision often requires the evaluation of other expensive elementary functions. Furthermore, large tables use a lot of the cash memory that should have been used for the application code.

    Obtaining the desired precision using a small table can instead be realised by using a higher order method than the second order Newton-Raphson method. A generalization of Newton's method to higher order is Householder's method, which unfortunately often results in very complicated expressions requiring many multiplications, additions, and even divisions.

    We show how a high-order method can be used, which only requires a few extra additions and multiplications for each degree of higher order. The method starts from the Taylor expansion of the difference of the value of the elementary function and a starting guess value for each iteration. If the Taylor series is truncated after the second term, ordinary Newton iterations are obtained. In several cases it is possible to algebraically simplify the difference between the true value and the starting guess value. In those cases we show that it is advantageous to use the Taylor series to higher order to obtain the fast convergent method. Moreover, we will show how the coefficients of a Chebyshev polynomial can be fitted to give as little error as possible for the functions close to zero and in the same time reduce the terms in the Taylor expansion.

    In the paper we benchmark two example implementations of the method on the x86_64 architecture. The first is the inverse square root, where the actual table (to 12 bit precision) is provided by the processor hardware. The inverse square root is important in many application programs, including computer graphics, and explicit particle simulation codes, for instance the Monte Carlo and Molecular Dynamics methods of statistical mechanics. The other example is the arcsine function, which has a slow converging Taylor expansion and where no tables are provided by the hardware. The vectorized versions of the implementations of the inverse square root are 3.5 times faster than compiled code on the Athlon64 and about 5 times faster on the Core 2. The scalar version of the arcsine function is, depending on order and table size, between 2 and 3 times faster than the compiled code, and the vectorized version is between 3 and 4 times faster on the Athlon64, while it is between 4 and 5 times faster than the compiled version on the Core 2.

  • 1971.
    Barrish, Jan
    University of Gävle, Faculty of Education and Business Studies, Department of Business and Economic Studies.
    Green Digital Marketing in the Mobile Phone Industry: Recommendations for Sony Ericsson's GreenHeart™2011Independent thesis Advanced level (degree of Master (Two Years)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Aim: This study is part of a digital activation plan that was done for Sony

    Ericsson’s GreenHeart™ team in the fall of 2009. The investigation presents and

    discusses what Sony Ericsson and its 4 main competitors (Nokia, LG, Samsung

    and Motorola) have done within green digital marketing and how the subject was

    communicated on their webpages. The aim of this study is to:

    • To present and analyze consumer insights on ecologically-driven technology

    • To present and analyze the eco-marketing digital practices and strategies used

    by 4 competitive mobile phone brands

    • To propose a digital green marketing strategy for GreenHeart™

    Method: This study consists of interviews with Sony Ericsson personnel,

    literature and web analysis that focus on the green initiatives of mobile phone

    manufacturers in the digital channel.

    Result & Conclusions: A main issue with green products is that consumers tend

    to find them not as good as non-green products. Consumer insight studies suggest

    that that the best way to communicate and promote green products is to focus on

    their direct benefits to consumers in comparison to non-green products, and

    communicate the green benefits only as a secondary message. This was also

    supported by theories such as Levit’s concept of “marketing myopia”, which

    describes a marketer’s tendency to focus on product features rather than consumer

    benefits.

    When analyzing the webpages of Sony Ericsson’s top 4 competitors, it was

    3

    evident that all 4 mobile phone manufacturers employed green digital marketing

    in quite a homogenous way. One striking similarity was that all brands have

    separated their green initiatives from the core of the website. It is a possibility that

    marketers have done this intentionally since consumers tend to associate green

    with lesser quality.

    In order for Sony Ericsson GreenHeart™ to stand out from the competitors, it was

    therefore suggested that green information should be integrated into the website

    and to communicate GreenHeart™ as a value-added product feature rather than a

    product in itself.

    Suggestions for future research: It is recommended to continue this research

    and to compare the findings from the mobile phone industry with other industries,

    such as the Fast Moving Consumer Goods (FMCG), where Green and Organic

    branding at a glance seem to have been developed strongly. It would be

    interesting to gain a perspective on the similarities and differences in the green

    marketing practices of different industries, but also to gain knowledge and

    inspiration on how green consumer electronics could be marketed in a more

    effective and integrated fashion. In this perspective, analyzing any variations

    between on- and off-line marketing initiatives would be interesting to see if the

    green message changes in a typical marketing mix. Moreover, it would be good to

    counter analyze the psychological mechanisms why, for certain industries such as

    food, green products are regarded as high quality whilst in another industry like

    electronics, green products are regarded as having lesser quality and business

    value.

    Contribution of the thesis: The most important finding of this study is that all

    the analyzed mobile phone manufacturers have many green initiatives. However,

    they are communicated separately from all other marketing and communication

    initiatives in the main digital channel. They tend to be set aside that consumers

    need to search for them, thus the messages are not delivered seamlessly. This

    makes it appear that green initiatives are being regarded as something obligatory

    rather than something that has true business value. Using Theoretical arguments

    on communication strategy from Levit and ClearWorks show how this, in reality,

    can be changed and be integrated with product marketing where it can generate a

    more significant business value

    Download full text (pdf)
    fulltext
  • 1972.
    Barroeta, Ander
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering.
    Design of a ventilation system for carbon dioxide reduction in two gym rooms2013Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    This project is mainly focused on the improving and design of the ventilation system of two rooms at different levels of a gym (Friskis and Svettis in Gävle, Sweden) to reduce the  concentration to never be higher than 1000 ppm.

    For this purpose, several field measurements were performed in different locations and situations. Two main measurements were necessary. On one hand, the  level in different parts of the rooms during different activities. On the other hand, the air flow through the inlet and outlet ducts of the ventilation system. It was also important to take into account the indoor temperature and humidity. These measurements were enough to analyze the failures of the system and to recognize the worst points of each room.

    Comparing both rooms, the necessity of changing the ventilation system in one of these rooms was much higher, due to there were measured  values up to 3000 ppm during a typical day in the gym.

    With this information the consequences of high CO2 levels in human people were analyzed. Among various ventilation systems, displacement ventilation system was proposed as the new design. Theoretical calculations were made to reach to the value of 31.8  in the air change rate (ACH), which was the necessary value for the new design to keep the carbon dioxide level under 1000 ppm.

    Download full text (pdf)
    Ander Barroeta Master Thesis
  • 1973.
    Barron, Paul
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Electrical Engineering, Mathematics and Science, Electronics.
    Data Analysis for Predictive Maintenance of a Straightening Machine in the Steel Industry2023Independent thesis Advanced level (degree of Master (One Year)), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    The availability of industrial machinery is crucial to any business operating in the manufacturingsector. Mechanical failures halt production and unplanned downtime canbe disruptive and costly. Small failures can compound to serious failures which exponentiallyincreases downtime and repair costs. Therefore Identifying a degradationcondition before reaching failure is key to maintaining machine availability. On theother hand, it’s undesirable to spend resources performing maintenance that is notrequired. For these reasons a large field of academic work is dedicated to analyzingthe health of a machine, it’s remaining life and in turn preventing failures.

    This thesis analyses data from a tube straightening machine used in the steel industrywith the goal of implementing a condition monitoring strategy. The data comes froma real world application provided by a multinational manufacturer of steel products.It was obtained using the existing sensors and data acquisition system. The projectserves as a study of the existing infrastructure (available sensors) and it’s suitability forimplementing a condition monitoring strategy. The work is the first step in a largerstudy and does not attempt to perform any implementation or fault identification. Ina broad sense the aim of the project is to identify relationships and patterns in the datathat could be varying with time as the machine degrades.

    The data consists of twelve channels taken over a two week duration. It is prepossessedto isolate periods where the machine is operating and separated into cycles. Each ofthese is then further processed to extract time and frequency domain features. Thefeatures within each channel are compared with each other using the R2 coefficientof determination to find combinations that are correlated. A semi automated processis used to select the feature combinations. The same process is performed betweensignals for each feature.

    A number of linear regression models are created based on the results from the correlatedfeatures as well as some multivariate models. These are then compared usinga goodness of fit metric, Normalized Root Mean Square Error (NRMSE). Potentialclustering of machine states are highlighted based on observations in the feature combinations.The conclusions drawn from this study include identification of correlationsbetween signals, potential non-linear relationships and suggestions for future data collectionand analysis going forward. No one feature was identified as correlated betweenall signals.

    Download full text (pdf)
    fulltext
  • 1974.
    Barrögård, Tove
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities.
    ”Djävulen på jorden” eller ”ett effektivt hjälpmedel”?: En undersökning om framställningen av ChatGPT i media och om svensklärares inställning till AI-verktyget2023Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Genom diskursanalys undersöker detta examensarbete vilka förståelser av chatbotten ChatGPT som skapas genom nyhetsrubriker och ingresser. Analysen är förankrad i diskursteori. Genom enkäter ämnar arbetet också undersöka hur svensklärare dels ställer sig till ChatGPT, dels resonerar om svenskämnets framtid. Den teoretiska ansats som relateras till enkätundersökningens resultat är en kombination av två teoretiska modeller som båda behandlar teknik i undervisning och förändring. Resultatet av diskursanalysen visar att element som bland annat fusk, revolution/förändring, robot och AI har nått stabilitet i materialet och att det sammantaget skulle kunna leda till en allmän förståelse av ChatGPT som något hotfullt mot utbildningsväsendet. Det förefaller dock finnas tendenser till alternativa förståelser, men som i materialet inte har lyckats nå stabilitet. Resultatet av enkätundersökningen visar att svensklärarna är övervägande negativa till chatbotten i undervisning. Fuskproblematiken och hotet mot rättssäkerheten vid bedömning tycks för närvarande överskugga en diskussion om ChatGPT:s potentiella positiva effekter på undervisning och lärande i flera avseenden.

    Download full text (pdf)
    fulltext
  • 1975.
    Barsch, Peder
    University of Gävle, Faculty of Engineering and Sustainable Development.
    Analys av konsignationslager: inom tillverkande industri2010Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    In this composition, a study of consignment inventory on basis of the factors which are important for implementation and application of consignment inventory are made. Logistics chain from subcontractor to end customer is becoming more complex when the volume of items constantly increases to satisfy the needs of the market. From that perspective, companies had large inventories but today it is a lot of different solutions to streamline inventory management. One way that recently becomes increasingly common is to let the subcontractor fill up the customers stock using different approaches such as VMI (Vendor Managed Inventory). A further step in the evolution can be to make use of consignment inventory where the vendor owns the stock of the customer. Then the material will be the customer’s property when the need arises.

    In order to ascertain whether consignment stocks in general is a good solution, a study has been done to investigate which factors are relevant for the implementation and application of consignment inventory within the industry.

    To find out the importance of the application of consignment inventory have a literature study of relevant theory in the field been done and where also a case study as a research method has been developed. In the case study, a number of companies have been selected with a non probability sampling where a qualitative approach is used to collect data and information. The theory used is based on selected elements in several different areas of logistics. When the interface is many has the following main areas been affected: Supply Chain Management, Lean production, outsourcing, capital binding, Just In Time, synchronization, VMI and distribution. On the basis of these areas has created a model which is then used in the investigation of the various cases.

    In the study has three cases been examined of which only one case are working on consignment inventory, while a case using vendor managed inventory as well as to the third case has ambitious plans to implement a consignment inventory. Background to the choice of cases is to be able to discuss consignment inventory in general.

    The final result is based on a comparison between the theoretical and the empirical investigation. What is revealed by the survey is that combinations of several different factors determine if a consignment is applicable as the logistical goal mix points out. Relevant factors are that the agreements have a good reason, the information exchange works well, capital binding and possibilities to have inventory at the customers plant. Also physical factors such as distance, the products format and distribution is of importance.

    Download full text (pdf)
    FULLTEXT01
  • 1976.
    Barsoum, Diana
    et al.
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities, Swedish and Gender studies.
    Engström, Maja
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities, Swedish and Gender studies.
    Högläsning - en komplex praktik?: En kvalitativ studie om lärares erfarenheter kring högläsningens möjligheter och utmaningar2023Independent thesis Advanced level (professional degree), 20 credits / 30 HE creditsStudent thesis
    Abstract [sv]

    Syftet med studien är att få en större förståelse för högläsningens betydelse och utifrån lärares erfarenheter kartlägga eventuella möjligheter och svårigheter med högläsningen. De medverkande lärarna arbetar på två olika skolor i Sverige, i förskoleklass och årskurs 1. En kvalitativ insamlingsmetod har använts i studien för att besvara frågeställningarna genom semistrukturerade intervjuer. Högläsning ses ur ett sociokulturellt perspektiv som bygger på interaktionen mellan lärare och elever. Studien visar att det finns en samsyn hos de intervjuade lärarna gällande högläsningens betydelse, däremot skiljer det sig något mellan lärarnas upplevda utmaningar. Resultatet visar att lärarna anser att högläsning bör vara en del av undervisningen eftersom den har stor betydelse för elevernas ordförråd. Resultatet visar även att lärarna anser att det finns ett samband mellan högläsning och elevers språkutveckling samt att det är av vikt att eleverna är delaktiga under högläsning. Studien visar att det främst förekommer utmaningar för lärarna att anpassa högläsningen på en nivå som passar alla elever. 

    Download full text (pdf)
    fulltext
  • 1977.
    Bartel, Kyle
    University of Gävle, Faculty of Engineering and Sustainable Development.
    Allocating Optimal Grid-Connected Solar Photovoltaic Power Plant Sites: GIS-Based Multi-Criteria Modeling of Solar PV Site Selection in the Southern Thompson-Okanagan Region, British Columbia, Canada2011Independent thesis Basic level (degree of Bachelor), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Fossil fuels and non-renewable resources are being replaced with, as modern day society has coined the term, green energy. This movement towards green energy creates a demand for renewable energy resources, such as solar photovoltaic (PV) systems. This study used Geographic Information Systems (GIS) in conjunction with Remote Sensing (RS) practices and two weighting systems the Analytical Hierarchy Process (AHP) and Rank-Order methods for PV site selection. Six multi-criteria models were developed using spatial factors and constraining images to locate potential photovoltaic power plant sites for three settings of fixed axis PV arrays. This analysis was performed at a macro regional scale and further analysis is encouraged for micro site selection. 

    Download full text (pdf)
    Allocating Optimal GPPP Sites
  • 1978.
    Barth, Olivia
    et al.
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Bäckström, Evelina
    University of Gävle, Faculty of Health and Occupational Studies, Department of Health and Caring Sciences.
    Livskvaliteten hos barn och ungdomar som lever med övervikt eller fetma: En litteraturstudie2019Independent thesis Basic level (professional degree), 10 credits / 15 HE creditsStudent thesis
    Abstract [en]

    Background: Overweight and obesity among children and adolescents is an increasing societal problem all over the world and a serious risk factor of being affected by many of the welfare diseases that exists in present time. The main causes of being overweight or obese is a mix of living habits, genetic- social-, psychological- and cultural factors. Children who are overweight or suffer from obesity have a great risk of being in that condition for the rest of their lives. It is in the nurses tasks to promote health by a holistic viewpoint of the individual. An insight of each person’s perception of their quality of life is a fundamental starting point. 

    Aim: To describe children and adolescents quality of life when overweight or obese, estimated on personal and parent perspective. 

    Method: A literature study of descriptive design based on twelve articles wherein one article used a mixed-method and the remaining eleven used a quantitative approach. 

    Main result: Children and adolescents who were overweight or suffered from obesity often assessed a low quality of life. Prominently in the categories of physical- psychological- and social functioning where many declared a decrease in physical wellness and difficulties in participating in physical activities, experienced depression and a low self-esteem. Experiences of bullying and alienation were common in these children and adolescents. 

    Conclusion: A correlation between a low quality of life and an increase in weight were observed in the domains of physical-, psychological- and social functioning. Because of the global increase in overweight and obesity in children and adolescents, the nurse needs an understanding of the phenomenon in order to have a holistic approach to the individual and act as support system to strengthen these children and adolescents’ sense of coherence in order to promote health in the profession.

    Download full text (pdf)
    fulltext
  • 1979.
    Barthel, Stephan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering. Stockholm resilience center; Stockholm University, Stockholm, Sweden.
    A Social-Ecological Research Lens on Urban Resilience2016Other (Other (popular science, discussion, etc.))
    Abstract [en]

    Social-Ecological Research has approached the city as a living ecosystem, an approach that really begun with the urban scholars of the early 1900s. But new developments in this line of research started during the 1990s to study various social-ecological relations in a web of life reaching far beyond the built environment of any city. Such research argues that it is in such social-ecological relations where the resilience of cities ultimately rests, for example in a food system consisting of the chain of activities connecting food producing ecosystems, processing, distribution, consump­tion, and waste management, as well as all the associated regulatory institutions and activities. Contrary to popular belief, it is in such social-ecological research traditions, where the most prolific authors on urban resilience are found.

  • 1980.
    Barthel, Stephan
    Stockholms universitet, Stockholm Resilience Centre.
    Framtidens Albano: forskning omsatt i  praktik2010In: Universitetsnytt, no 6 dec., p. 18-19Article in journal (Other (popular science, discussion, etc.))
  • 1981.
    Barthel, Stephan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Environmental Science.
    Potentialer inom styrkeområdet Smarta Hållbara Städer och Samhällen2021Report (Other academic)
    Abstract [sv]

    EU:s Gröna Giv stödjer en samhällstransformation  till en modern, resurseffektiv och konkurrenskraftig ekonomi där det inte finns några nettoutsläpp av växthusgaser år 2050, där den ekonomiska tillväxten har frikopplats från resursförbrukningen, och där inga människor eller platser lämnas utanför. Region Gävleborg kan verka för dessa tre mål simultant genom att stödja innovationer i mellanrummen ett fossilfritt Gävleborg och smart specialisering om Hållbara och Smarta Städer och Samhällen.

    Sverige kan bli klimatneutralt redan 2045. FAIRTRANS (En Rättvis klimatomställning mot en fossilfritt samhälle) är ett nationellt program som drivs i samarbete mellan Stockholms Universitet och Högskolan i Gävle och samproducerar ny kunskap och policy i denna riktning. Vätgas är en av de lovande teknologierna för transporter och arbetsmaskiner, men den kommer framför allt att få en stor betydelse för omställningen av industrin och energisystemet. Den kan bidra till att öka elproduktionen från förnybara energikällor och förstärka elnätet, och kan samtidigt användas för att fasa ut fossila bränslen i olika industriprocesser. Sedan 2021 är Gävle Kommun med i det nationella programmet VIABLE CITIES om klimatneutrala städer. Namnet på programmet är ”Klimatneutralt Gävle 2030” och målet är att skapa en systemtransformation tillsammans med andra aktörer inom det nationella nätverket VIABLE CITIES. Tre åtgärder kommer att arbetas med som ligger i linje med kommunens klimatfärdplan: kollektivtrafiken, planerings-och byggprocessen, samt att öka handlingskompetens hos medborgare (beteende och konsumtion). FUTURE PROOF CITIES (FPC) har fokus på industridoktorander och har stor potential att långsiktigt öka kapaciteten inom sin respektive organisationer. FPC samproducerar kunskap om social hållbarhet, klimatomställningen, klimat-resiliens, samt samproducerar kunskap kring både digitala och analoga metoder för integrering av kunskapssystem.

    Eu-projektet (H2020) RES4BUILD har det övergripande målet att minska koldioxidutsläppen i energiförbrukningen i byggnader.  Det utvecklar integrerade förnybara energibaserade lösningar som är skräddarsydda efter användarnas och installatörernas behov, samt kostnadskonkurrenskraftiga 2025. ”Resilient Cooling of Buildings” har fokus på övergången till resilienta och koldioxidsnåla kylsystem i byggnader. Detta inkluderar också lösningar för samhällen att klara och förhindra termiska och andra effekter av den globala uppvärmningen.

    Inom en smart och attraktiv stad utgör BIG (Bettering life through Integrative GIS) ett innovativt projekt om metodutveckling för en upplevelsebaserad urban design. BIG är ett samarbetsprojekt mellan Högskolan i Gävle och Future Position X (FPX).

    EU:s andra mål i EU:s Gröna Giv handlar om en BNP tillväxt frikopplad från användningen fossila bränslen, vilket samspelar med målområdet i den regionala utvecklingsstrategin om samhällsnyttig, cirkulär och biobaserad ekonomi.  Innovationsarenor som förenar bio-ekonomi och hållbar stadsutveckling bör utvecklas.”Hållbara värdekedjor genom cirkulära affärsmodeller” har utvecklat mätetal för cirkularitet, en samverkansplattform för industriell och urban symbios har etablerats och därtill har flera företag och olika resursflöden som t.ex. plast och byggavfall undersökts i samarbete med Movexum. I projektet Bioväx studeras hur produktion av biogas och växtnäring kan etableras och byggas ut med Gävle kommun.

    Ett strategiskt arbete i linje med EU:s Gröna Giv målområde 3 bör samproduceras med aktörer inom akademi, civilsamhälle och näringsliv. Det pågår innovationsutveckling om urbana (digitala) gemensamheter för en socialt hållbar utveckling av våra tätorter. Här finns potential för beteendeförändringar kopplat till delningsekonomiska förtjänster samt genom minskning av inrikes transporter och arbetspendling. Arbetet med urbana digitala gemensamheter ligger i linje med ”Klimatneutralt Gävle 2030” som satsar på kompetenshöjning hos invånare. Två viktiga projekt för samverkan pågår mellan HiG och kommuner: Stadsdelslyftet i Gävle och Ökad inkludering i Sandviken. En samverkansgrupp börjar ta form som tentativt kallas ´Samhällsarbete för socialt hållbar stadsutveckling´. Denna samverkansgrupp har representanter för Gavlegårdarna, Sandvikenhus, Socialtjänstens förebyggandeenheter i Gävle och Sandviken. Horisontell innovationsutveckling (HiL) har visat sig kunna överbrygga organisatoriska hinder för transformation. 

    Download full text (pdf)
    fulltext
  • 1982.
    Barthel, Stephan
    Stockholms universitet, Systemekologiska institutionen.
    Recalling Urban Nature: Linking City People to Ecosystem Services2008Doctoral thesis, comprehensive summary (Other academic)
    Abstract [en]

    Societal development is dependent on the generation of ecosystem services (ES) to sustain it; however, many ES are degrading. This thesis investigates how social-ecological features behind practices of actor groups shape the generation of ES. The empirical basis is case studies in the urban landscape of Stockholm, Sweden, and the methodological approach is interdisciplinary. Paper I shows that the urban landscape owes it current flow of ES to co-evolutionary processes and that governance with the aim of sustaining ES must take into account historical property rights and the involvement of a diversity of actor groups, as well as ecological processes of the larger landscape. Paper II studies allotment gardens, cemeteries and city parks in relation to the generation of pollination, seed dispersal and pest regulation. Differences in social features behind practice are reflected primary as higher abundance of pollinators in the informally managed allotment gardens and as differences in the compositions of seed dispersers and insectivores’ birds. Thus, voluntary and often ignored actor groups, motivated by sense-of-place, support the generation of some ES here. Paper III shows how practice, linked to ES generation, is retained and stored among allotment gardeners, and modified and transmitted through time, by means of social-ecological memory (SE-memory). SE-memory is an emergent property of a dual process of participation and reification and it facilitates monitoring of local change and links practice, often in habits, to place specific processes that underlie provisioning ES. Paper IV explores how spatial scale mismatches between ecological process and processes of management can be bridged by a spatially explicit and flexible social network structure of governance. Urban ES are a product of human driven co-evolution, consequently sustaining ES in urban landscapes is not about conservation without people, but shaped by and dependent on management practice by people. Practice that links to generation of ES are facilitated by SE-memory of local actors that holds long term management rights. Consequently, local communities of ecosystem practice, which contribute to the production of ES should explicitly be taken into account in urban green governance.

  • 1983.
    Barthel, Stephan
    Stockholms universitet, Stockholm Resilience Centre.
    Resilience2014In: A Companion to Urban Anthropology / [ed] Donald M. Nonini, Oxford: Blackwell Publishing , 2014, p. 428-446Chapter in book (Refereed)
    Abstract [en]

    This chapter uses a resilience lens, where resilience is defined as the capacity to absorb shocks, utilize them, reorganize, and continue to develop without losing fundamental functions (Folke 2006). This resilience lens can be used to analyze the role of urban gardens as memory carriers of ways to build food securityin cities (see Chapters 20 and 23, “Memory and Narrative” and “Food and Farming”).

    Comparing Western urban histories in a global frame of reference suggests that a marked conceptual and physical separation between urban and rural sectors emerged largely as a consequence of high modernist time–space compression during the 1900s (Harvey 1990). However, it is estimated that in contemporary cities of the global South, approximately 800 million people are still engaged in urban agriculture, producing approximately 15–20 percent of the world’s food. These numbers are diminishing due to similar processes that drove food production from Western cities. Do such changes in the urban environment influence the capacity of urban people to respond to food shortages in the future?It has been suggested that modernist urbanization severs perceived and experienced relations between people and nature as urban lifestyles are adopted and resilience as access to green areas is reduced. This alienation process has been termedthe “extinction-of-experience” (Miller 2005), an ongoing generational amnesia among city peoples about their relationships to, and dependence upon, diverse ecosystems, including agro-ecosystems. Such social amnesia has been argued to produce food insecurity among growing urban populations, simply because it erodes options of self-sufficiency (Barthel, Parker, and Ernstson 2013). Food security is broadly defined here as having physical and economic access to sufficient, safe, and nutritious food to meet dietary needs (FAO 1996). Following Pothukuchi and Kaufman (2000: 113), the food system is defined as “the chain of activities connecting food production, processing, distribution, consumption, and waste management, as well as all the associated regulatory institutions and activities” (see Chapters 23 and 24, “Food and Farming” and “Pollution”). The focus of this essay is on food production, which makes this whole circuit possible. I highlight collectively managed urban gardens as potential “memory workers” to combat the ongoing generational amnesia among city dwellers about the intimate links between local agro-ecosystems and food security (Barthel, Parker, and Ernstson 2013).

  • 1984.
    Barthel, Stephan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering. Stockholm Resilience Centre .
    Social-Ecological Urbanism and the Life of Baltic Cities2016In: The Nature of Cities, Vol. 2016Article, review/survey (Other (popular science, discussion, etc.))
    Abstract [en]

    Jane Jacobs critiqued modernist city planning in the now classic book The Death and Life of Great American Cities(1961). This book is now inspiring an urban renaissance. Jacobs proposed that a city must be understood as a system of organized complexity—in other words, as an ecosystem—and that any intervention in the urban fabric with a lack of such understanding is bound to result in unexpected surprises. Trained in zoology, Jacobs viewed the city much like a coral reef, where co-evolutionary dynamics between the coral organisms (the people) and the coral reef (the built environment) result in the emergence of a socio-spatial logic that can support various kind of functions and opportunities for people.

    First line of urban scholarship based on ecological thought

    Blueprint planning based on ideals such as Le Corbusier’s “The Shining City,” or Sir Ebenezer Howard’s “The Garden City,” Jacobs argued, is likely to fail since it lacks the critical understanding of the city as a complex socio-spatial system. Spatial morphology thinking (Hillier and Hanson, 1984) provided a precision and an analytical depth to the insights of Jane Jacobs. Density, accessibility and diversity are outlined as the main features of spatial capital for people in cities (Marcus, 2010), which are akin to insights in ecosystem ecology, where species diversity, species abundance and ecological connectivity are critical features.

    Download full text (pdf)
    fulltext
  • 1985.
    Barthel, Stephan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering.
    Viola has an Acorn in her Pocket2016Other (Other (popular science, discussion, etc.))
  • 1986.
    Barthel, Stephan
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering. Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden.
    Belton, Sophie
    Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden.
    Raymond, Christopher
    Department of Landscape Architecture, Planning and Management, Swedish University of Agricultural Sciences, Alnarp, Sweden.
    Giusti, Matteo
    Stockholm Resilience Centre, Stockholm University, Stockholm, Sweden.
    Fostering Children’s Connection to Nature Through Authentic Situations: The Case of Saving Salamanders at School2018In: Frontiers in Psychology, E-ISSN 1664-1078, Vol. 9, article id 928Article in journal (Refereed)
    Abstract [en]

     The aim of this paper is to explore how children learn to form new relationships with nature. It draws on a longitudinal case study of children participating in a stewardship project involving the conservation of salamanders during the school day in Stockholm, Sweden. The qualitative method includes two waves of data collection: when a group of 10-year-old children participated in the project (2015) and 2 years after they participated (2017). We conducted 49 interviews with children as well as using participant observations and questionnaires. We found indications that children developed sympathy for salamanders and increased concern and care for nature, and that such relationships persisted 2 years after participation. Our rich qualitative data suggest that whole situations of sufficient unpredictability triggering free exploration of the area, direct sensory contact and significant experiences of interacting with a species were important for children’s development of affective relationships  with the salamander species and with nature in an open-ended sense. Saving the lives of trapped animals enabled direct sensory interaction, feedback, increased understanding, and development of new skills for dynamically exploring further ways of saving species in an interactive process experienced as deeply meaningful, enjoyable and connecting. The behavioral setting instilled a sense of pride and commitment, and the high degree of responsibility given to the children while exploring the habitat during authentic situations enriched children’s enjoyment. The study has implications for the design of education programs that aim to connect children with nature and for a child-sensitive urban policy that supports authentic nature situations in close spatial proximity to preschools and schools.

    Download full text (pdf)
    fulltext
  • 1987. Barthel, Stephan
    et al.
    Berghauser Pont, M.
    Colding, Johan
    Gren, Å.
    Legeby, A.
    Marcus, L.
    DN Debatt: ”Nytt miljonprogram – unik chans att lösa flera frågor”2016In: Dagens nyheterArticle in journal (Other (popular science, discussion, etc.))
  • 1988. Barthel, Stephan
    et al.
    Berghauser-Pont, Meta
    Chalmers.
    Colding, Johan
    Stockholms Universitet.
    Gren, Åsa
    Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences.
    Legeby, Ann
    KTH.
    Marcus, Lars
    Chalmers.
    Miljonprogram - unik chans att lösa flera frågor2016In: Dagens Nyheter, ISSN 1101-2447Article in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Dolt värde av enorma mått. Ett nytt miljonprogram kan förskräcka, men kan vara just vad Sverige behöver. Men vi ska inte upprepa misstagen från förra gången. I stället måste politikerna nu ta fasta på denna unika chans att ta itu med vår tids stora utmaningar som integration, tillväxt och hållbarhet, skriver sex forskare.

  • 1989.
    Barthel, Stephan
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Environmental Science. Stockholm Resilience Centre.
    Berghauser-Pont, Meta
    Chalmers.
    Colding, Johan
    Stockholms Universitet.
    Gren, Åsa
    Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences.
    Legeby, Ann
    KTH.
    Marcus, Lars
    Chalmers.
    Nytt miljonprogram - unik chans att lösa flera frågor2016In: Dagens Nyheter, ISSN 1101-2447, no 25-aprArticle in journal (Other (popular science, discussion, etc.))
    Abstract [sv]

    Dolt värde av enorma mått. Ett nytt miljonprogram kan förskräcka, men kan vara just vad Sverige behöver. Men vi ska inte upprepa misstagen från förra gången. I stället måste politikerna nu ta fasta på denna unika chans att ta itu med vår tids stora utmaningar som integration, tillväxt och hållbarhet, skriver sex forskare.

  • 1990.
    Barthel, Stephan
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering.
    Colding, Johan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering. Stockholms Universitet.
    A Critical Perspective on the “Smart City” Model2017Other (Other (popular science, discussion, etc.))
    Abstract [en]

    As urban ecologists we support developing smoother traffic systems, providing citizens with more easily accessible information, and of course promoting citizen-participation and local democracy in political decision-making. However, and as is normally the common destiny when new models for sustainable development are appearing, investments in these “smarter” models run the risk of making people blind to problems that need more immediate concern. In short, governance is a matter of prioritizing among different goals. Governance is also about making sure that strong and powerful enterprises and business interests do not hijack the public debate

  • 1991.
    Barthel, Stephan
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building, Energy and Environmental Engineering, Environmental engineering.
    Colding, Johan
    Stockholms Universitet.
    The Smart (Cyborg) City Needs Smarter Ecological Resilience Thinking2017Other (Other (popular science, discussion, etc.))
    Abstract [en]

    Employing a sort of a cyborg worldview—meaning a living system of intertwined human and machine parts—the Smart City system is seen as contributing to urban sustainability with the basic assumption that ‘the Internet of Things’ serves social and public ends. These ends include economic benefits, improving efficiency and quality of life for people by optimizing control of infrastructures. In this view, urban residents are at the center of a city’s sustainability transformation, while at the same time serving as “data sources”, providing urban planners (central controllers of the cyborg) various sources of information about human behavior that may or may not be exploited. While various efficiency measures often are beneficial for society, at least in the short term, the discussions of resilience of such a cyborg is mostly entirely avoided.

  • 1992.
    Barthel, Stephan
    et al.
    Stockholm Resilience Centre.
    Colding, Johan
    Stockholms Universitet.
    Andersson, Erik
    Stockholms Universitet.
    Schewenius, Maria
    Stockholms Universitet.
    Campus Albano, Stockholm - Creating a social-ecological ‘best practices’ campus area in the Baltic region for supporting learning, innovation, and sense of community: In Live Baltic Campus: Inventory Reports2016Report (Other academic)
    Abstract [en]

    Campus Albano is the newest addition to the Stockholm University campus, Stockholm, Sweden. Production commenced on Nov. 30, 2015, after a five-year planning and design process. The student- and researcher accommodations, and the university buildings are expected to be ready by 2018 and 2019, respectively. The project is significant both for its participatory planning process, and for the strong focus on supporting ecosystem services, for example wetlands and allotment gardens, in the final campus design.

    Download full text (pdf)
    fulltext
  • 1993.
    Barthel, Stephan
    et al.
    Stockholm University, Stockholm, Sweden.
    Colding, Johan
    Beijer International Institute of Ecological Economics, Stockholm, Sweden.
    Elmqvist, Tomas
    Stockholm University, Stockholm, Sweden.
    Folke, Carl
    Stockholm University, Stockholm, Sweden.
    History and local management of a biodiversity-rich, urban cultural landscape2005In: Ecology & Society, E-ISSN 1708-3087, Vol. 10, no 2, article id 10Article in journal (Refereed)
    Abstract [en]

    Urban green spaces provide socially valuable ecosystem services. Through an historical analysis of the development of the National Urban Park (NUP) of Stockholm, we illustrate how the coevolutionary process of humans and nature has resulted in the high level of biological diversity and associated recreational services found in the park. The ecological values of the area are generated in the cultural landscape. External pressures resulting in urban sprawl in the Stockholm metropolitan region increasingly challenge the capacity of the NUP to continue to generate valuable ecosystem services. Setting aside protected areas, without accounting for the role of human stewardship of the cultural landscape, will most likely fail. In a social inventory of the area, we identify 69 local user and interest groups currently involved in the NUP area. Of these, 25 are local stewardship associations that have a direct role in managing habitats within the park that sustain such services as recreational landscapes, seed dispersal, and pollination. We propose that incentives should be created to widen the current biodiversity management paradigm, and actively engage local stewardship associations in adaptive co-management processes of the park and surrounding green spaces. Copyright © 2005 by the author(s). Published here under license by the Resilience Alliance.

  • 1994. Barthel, Stephan
    et al.
    Colding, Johan
    Erixon, Hanna
    Ernstson, Henrik
    KTH, Historiska studier av teknik, vetenskap och miljö.
    Grahn, Sara
    Kärsten, Carl
    Marcus, Lars
    Torsvall, Jonas
    Principles of Social Ecological Design: Case study Albano Campus, Stockholm2013Book (Other academic)
  • 1995.
    Barthel, Stephan
    et al.
    Stockholms universitet, Stockholm Resilience Centre.
    Colding, Johan
    Stockholms universitet, Stockholm Resilience Centre.
    Ernstson, Henrik
    Stockholms universitet, Stockholm Resilience Centre.
    QBook4-Hållbarhet: Albano Resilient Campus2010Report (Other (popular science, discussion, etc.))
  • 1996. Barthel, Stephan
    et al.
    Colding, Johan
    Ernstson, Henrik
    KTH, Historiska studier av teknik, vetenskap och miljö.
    Grahn, Sara
    KTH, Arkitektur.
    Erixon, Hanna
    KTH, Arkitektur.
    Marcus, Lars
    KTH, Stadsbyggnad.
    Kärsten, Carl
    Torsvall, Jonas
    Chans sätta Stockholm på kartan2011In: Svenska dagbladetArticle in journal (Other (popular science, discussion, etc.))
    Download full text (pdf)
    fulltext
  • 1997.
    Barthel, Stephan
    et al.
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Environmental Science.
    Colding, Johan
    University of Gävle, Faculty of Engineering and Sustainable Development, Department of Building Engineering, Energy Systems and Sustainability Science, Environmental Science.
    Hiswåls, Anne-Sofie
    University of Gävle, Faculty of Health and Occupational Studies, Department of Public Health and Sport Science, Public Health Science.
    Thalén, Peder
    University of Gävle, Faculty of Education and Business Studies, Department of Humanities, Religious studies.
    Turunen, Päivi
    University of Gävle, Faculty of Health and Occupational Studies, Department of Social Work and Criminology, Social Work.
    Urban green commons for socially sustainable cities and communities2022In: Nordic Social Work Research, ISSN 2156-857X, E-ISSN 2156-8588, Vol. 12, no 2, p. 310-322Article in journal (Refereed)
    Abstract [en]

    In these times of global pandemics and climate crisis, social sustainability has become a crucial issue within diverse sectors and disciplines. This article aims to broaden the discussions on social sustainability in general, and in relation to community work within professional social work in particular.

    By means of a cross-disciplinary bricolage approach – with a focus on the commons – we aim to construct a holistic view of urban social sustainability. Beginning with the Anthropocene concept, which recognizes the human impact on the Earth’s natural systems and hence highlights the need to include the natural environment as a determinant of good and fair living conditions for all, we remix arguments and examples relating to social sustainability with environmental and spatial dimensions to develop an urban green commons. Our cross-disciplinary perspective extends beyond contemporary social policy by bringing together natural resource management, public health, and spiritual aspects of the commons. In order to fit the plurality of urban contexts across the planet, further critical deliberations are needed, focusing on social sustainability and collective action for sustainable change in each context. 

    Download full text (pdf)
    fulltext
  • 1998. Barthel, Stephan
    et al.
    Colding, Johan
    Schewenius, M
    Andersson, E
    The Participatory design process that lead to the vision of Campus Albano: Live Baltic Science Report2016Report (Other academic)
  • 1999.
    Barthel, Stephan
    et al.
    Stockholm Resilience Centre, Stockholm University, Sweden; Department of History, Stockholm University, Stockholm, Sweden.
    Crumley, Carole L.
    Stockholm Resilience Centre, Stockholm University, Sweden; Department of Archaeology and Ancient History, Uppsala University, Uppsala, Sweden; Swedish Biodiversity Centre, Swedish University of Agricultural Sciences (SLU), Uppsala, Sweden.
    Svedin, Uno
    Stockholm Resilience Centre, Stockholm University, Sweden.
    Biocultural Refugia: Combating the Erosion of Diversity in Landscapes of Food Production2013In: Ecology & Society, E-ISSN 1708-3087, Vol. 18, no 4, article id 71Article in journal (Refereed)
    Abstract [en]

    There is urgent need to both reduce the rate of biodiversity loss caused by industrialized agriculture and feed more people. The aim of this paper is to highlight the role of places that harbor traditional ecological knowledge, artifacts, and methods when preserving biodiversity and ecosystem services in landscapes of food production. We use three examples in Europe of biocultural refugia, defined as the physical places that not only shelter farm biodiversity, but also carry knowledge and experiences about practical management of how to produce food while stewarding biodiversity and ecosystem services. Memory carriers include genotypes, landscape features, oral, and artistic traditions and self-organized systems of rules, and as such reflect a diverse portfolio of practices on how to deal with unpredictable change. We find that the rich biodiversity of many regionally distinct cultural landscapes has been maintained through different smallholder practices developed in relation to local environmental fluctuations and carried within biocultural refugia for as long as millennia. Places that transmit traditional ecological knowledge and practices hold important lessons for policy makers since they may provide genetic and cultural reservoirs - refugia - for the wide array of species that have co-evolved with humans in Europe for more than 6000 thousand yrs. Biodiversity restoration projects in domesticated landscapes can employ the biophysical elements and cultural practices embedded in biocultural refugia to create locally adapted small-scale mosaics of habitats that allow species to flourish and adapt to change. We conclude that such insights must be included in discussions of land-sparing vs. land-sharing when producing more food while combating loss of biodiversity. We found the latter strategy rational in domesticated landscapes with a long history of agriculture.

  • 2000.
    Barthel, Stephan
    et al.
    Natural Resource Management, Department of Systems Ecology, Stockholm University, Stockholm, Sweden; Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences, Stockholm, Sweden; Stockholm Resilience Center, Stockholm University, Stockholm, Sweden.
    Folke, Carl
    Natural Resource Management, Department of Systems Ecology, Stockholm University, Stockholm, Sweden; Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences, Stockholm, Sweden; Stockholm Resilience Center, Stockholm University, Stockholm, Sweden.
    Colding, Johan
    Beijer Institute of Ecological Economics, Royal Swedish Academy of Sciences, Stockholm, Sweden; Stockholm Resilience Center, Stockholm University, Stockholm, Sweden.
    Social-ecological memory in urban gardens-Retaining the capacity for management of ecosystem services2010In: Global Environmental Change, ISSN 0959-3780, E-ISSN 1872-9495, Vol. 20, no 2, p. 255-265Article in journal (Refereed)
    Abstract [en]

    Many ecosystem services are in decline. Local ecological knowledge and associated practice are essential to sustain and enhance ecosystem services on the ground. Here, we focus on social or collective memory in relation to management practice that sustains ecosystem services, and investigate where and how ecological practices, knowledge and experience are retained and transmitted. We analyze such social-ecological memory of allotment gardens in the Stockholm urban area, Sweden. Allotment gardens support ecosystem services such as pollination, seed dispersal and pest regulation in the broader urban landscape. Surveys and interviews were preformed over a four-year period with several hundreds of gardeners. We found that the allotment gardens function as communities-of-practice, where participation and reification interact and social-ecological memory is a shared source of resilience of the community by being both emergent and persistent. Ecological practices and knowledge in allotment gardens are retained and transmitted by imitation of practices, oral communication and collective rituals and habits, as well as by the physical gardens, artifacts, metaphors and rules-in-use (institutions). Finally, a wider social context provides external support through various forms of media, markets, social networks, collaborative organizations, and legal structures. We exemplify the role of urban gardens in generating ecosystem services in times of crisis and change and conclude that stewards of urban green areas and the social memory that they carry may help counteract further decline of critical ecosystem services. .

37383940414243 1951 - 2000 of 26579
CiteExportLink to result list
Permanent link
Cite
Citation style
  • apa
  • harvard-cite-them-right
  • ieee
  • modern-language-association-8th-edition
  • vancouver
  • Other style
More styles
Language
  • sv-SE
  • en-GB
  • en-US
  • fi-FI
  • nn-NO
  • nn-NB
  • de-DE
  • Other locale
More languages
Output format
  • html
  • text
  • asciidoc
  • rtf