| 1. |
- Ahlgren, Erik, 1962, et al.
(författare)
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Biokombi Rya - slutrapporter från ingående delprojekt
- 2007
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Inom projektet Biokombi Rya har ett flertal olika forskargrupper samarbetat för att studera system¬effekterna av förgasning av biobränsle ur olika aspekter. Syftet med projektet är att öka kunskapen om biobränsleförgasning i Sverige samt att utreda förutsättningar för att sådana anläggningar ska vara ekonomiskt och miljömässigt intressanta. En referensgrupp har varit kopplad till projektet där förutsättningar, resultat och slutsatser har behandlats.I denna underlagsrapport har slutrapporterna från projektets delprojekt samlats. De beskriver förutsättningar, metodansatser, använda data och resultat utförligt och utgör på så sätt ett viktigt komplement till den mer övergripande beskrivningen i projektets syntesrapport. De delrapporter som ingår har valts för att täcka in samtliga delar av projektet som är av allmänt intresse. Projektresultat som publicerats på annat sätt berörs dock mer kortfattat.Projektet Biokombi Rya har pågått under två år (2005-2006) och drivits av Chalmers EnergiCentrum. Förutom de omfattande analysinsatser som författarna till denna rapport står för, har Avdelningen för kemisk teknologi vid KTH, Siemens Industrial Turbines AB och Göteborg Energi AB bidragit med expertstöd. CIT Industriell Energianalys, med undertecknad som projektledare, har stått för projektledning och koordination.Projektet har finansierats av Energimyndigheten, Göteborg Energis forsknings¬stiftelse samt Göteborg Energi AB.
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| 2. |
- Barthel, Stephan, 1968-, et al.
(författare)
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Chans sätta Stockholm på kartan
- 2011
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Ingår i: Svenska dagbladet. - Stockholm : Svenska Dagbladet.
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Annan publikation (populärvet., debatt m.m.)
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| 3. |
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| 4. |
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| 5. |
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| 6. |
- Berghauser Pont, Meta, 1972, et al.
(författare)
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Development of urban types based on network centrality, built density and their impact on pedestrian movement
- 2019
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Ingår i: Environment and Planning B: Planning and Design. - : SAGE Publications. - 2399-8083 .- 2399-8091. ; 46:8, s. 1549-1564
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Tidskriftsartikel (refereegranskat)abstract
- A better understanding of the relationship between the built environment and urban processes is central in guiding urban processes in more sustainable trajectories. Of particular importance to this endeavour is the idea of urban types. However, on closer scrutiny, while such types may capture the symbolic dimension of urban form, they frequently do not capture its performance or functional dimension. This prohibits precise policy formulation on the topic. This paper first presents a methodology for generating urban types relevant to urban practice (using analytical and statistical methods) and, second, an empirical test of the differences in performance concerning their influence on the presence of people in public space (an essential driver of many other urban processes). For this reason, a large (and to our knowledge unique) pedestrian survey of three European metropolitan areas was conducted and used to test the performance of the urban types developed. The results prove that the methodology for developing the types is robust, as it picks up generally recognised spatial patterns in all three cities. Further, the types were able to explain the intensity of pedestrian flow, its spatial distribution and fluctuations of intensity in space and time. These are vital steps forward and provide more useable typologies in urban planning and design practice.
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| 7. |
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| 8. |
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| 9. |
- Berghauser Pont, Meta, 1972, et al.
(författare)
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INNOVATIONS IN MEASURING DENSITY: FROM AREA AND LOCATION DENSITY TO ACCESSIBLE AND PERCEIVED DENSITY
- 2014
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Ingår i: Nordic Journal of Architectural Research. - 1893-5281. ; :2, s. 11-30
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Tidskriftsartikel (refereegranskat)abstract
- Although density has been an important concept for urban design and planning ever since the 19th century, it is an imprecise concept with varying definitions and measurements. This is annoying as the concept is central to strategies for sustainable urban development which have gained wide support since the 1990s. This paper gives a brief review of the most frequently used urban density measures and their shortcomings. In this paper, we will further show that a multivariable definition of density as proposed in the Spacemate method is needed to capture important morphological qualities that otherwise are lost in abstract numbers. The paper also addresses the Modifiable Area Unit Problem inherent to all measures of urban density, and proposes to solve this by introducing accessibility in the density measure. Defining distance is obviously a critical part of the accessibility measure and it is therefore proposed to use the axial map developed in space syntax, to measure distance. The axial map is a geometric representation of urban space based on graph theory, constructed from the point of view of a cognitive subject, i.e. an experiencing and acting human being. By doing so this paper arrives at a measure of accessible density that even can be understood as a measure of perceived density.
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| 10. |
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| 11. |
- Berghauser Pont, Meta, 1972, et al.
(författare)
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Integrating visibility graph analysis (VGA) with connectivity analysis in landscape ecology
- 2017
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Ingår i: 11th International Space Syntax Symposium, SSS 2017, Lisbon, Portugal, 3-7 July 2017. - 9789729899447 ; , s. 157.1-157.18
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Konferensbidrag (refereegranskat)abstract
- Interest in urban green areas has rapidly increased in recent years as the world becomes increasingly urbanized (see e.g., McDonald, 2008, UN-habitat, 2016). This brings new demands for a deeper understanding of the morphology of green areas in cities that provide us with a range of important ecosystem services (ESS) such as evaporative cooling, water purification, micro climate regulation, recreation and even pollination (MA 2005; Andersson et al., 2007). If we also are to support or even enhance such services, we need to make this knowledge accessible for professionals in urban planning and design. In both regards we see the need to bring the fields of landscape ecology and urban morphology closer to each other. This papers addresses this, taking the ESS pollination as point of departure. It has been acknowledged that besides the amount of green, also connectivity between green areas is important for most of these ESS (Alberti, 2008; Kindleman et al., 2008). The critical issue remains how connections are represented. In this paper we propose an alternative approach inspired by space syntax where we introduce a method to capture urban form and their impact on movement behaviour of bumble bees. A first attempt to do so was discussed by Marcus et al. (2014) but instead of drawing connections using space syntax, we here propose to define the resistance to movement using visibility graph analysis (VGA). The level of visual integration can then be calculated based on the number of visual steps it takes to get from one point to any other point within the system. For species that navigate by sight this can be a rather simple and effective way to measure the cost or resistance to move through an urban landscape. To test the method, observation data on bumble bees collected in 16 sites in Stockholm (Ahrné et al., 2009) are used.
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| 12. |
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| 13. |
- Berghauser Pont, Meta, 1972, et al.
(författare)
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PST
- 2019
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Annan publikation (mjukvara/multimedium) (övrigt vetenskapligt/konstnärligt)abstract
- PST is a tool for performing space syntax and regular accessibility analyses. It currently consists of two main parts - a C++ and Python library called Pstalgo and a plugin for the desktop application QGIS.PST is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version. The GNU General Public License is intended to guarantee your freedom to share and change all versions of a program--to make sure it remains free software for all its users.For latest download visit either the Chalmers publication page, or find "Releases" on the Github page.
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| 14. |
- Berghauser Pont, Meta, 1972, et al.
(författare)
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Quantitative comparison of cities : Distribution of street and building types based on density and centrality measures
- 2017
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Ingår i: Proceedings - 11th International Space Syntax Symposium, SSS 2017. - : Instituto Superior Tecnico, Departamento de Engenharia Civil, Arquitetura e Georrecursos. - 9789729899447 ; 2, s. 44.1-44.18
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Konferensbidrag (refereegranskat)abstract
- It has been argued that different urban configurations-planned vs. organic, treelike vs. grid like-perform differently when it comes to the intensity and distribution of pedestrian flows, built density and land uses. However, definitions of urban configurations are often rather abstract, ill-defined and at worse end in fixed stereotypes hiding underlying spatial complexity. Recent publications define morphological typologies based on quantitative variables (e.g. Barthelemy, 2015; Serra, 2013a; Gil et al., 2012; Berghauser Pont and Haupt, 2010) and solve some of these shortcomings. These approaches contribute to the discussion of types in two ways: firstly, they allow for the definition of types based on multiple variables in a precise and repeattable manner, enabling the study of large samples and the comparison between both cities and regions; secondly, they frame design choices in terms of types without being fixed and so open up for design explorations where the relation between the variables can be challenged to propose new types. This paper explores the typologies defined by Serra (2013a) and Berghauser Pont and Haupt (2010) further, as these target two of the most important morphological entities of urban form, namely the street network and the building structure. The purpose is to gain a better understanding of how types are composed and distributed within and across different cities. The method is based on GIS and statistical modeling of four cities to allow for a comparative analysis of four cities: Amsterdam, London, Stockholm and Gothenburg. For the street network, we process the Road-Centre-line maps to obtain a clean network model, then run segment angular analysis to calculate the space syntax measures of betweenness at different metric radii, defining the "centrality palimpsest" (Serra, 2013a). For the building structure, we process elevation data to obtain building height, then run accessible density analysis for all building density metrics (FSI, GSI, OSR, L) using the Place Syntax Tool (Berghauser Pont and Marcus, 2014). The street and building types are defined using cluster analysis (unsupervised classification), following a similar approach to Serra (2013a). The result is a typology of street ('paths') and building types ('places'), with different profiles of centrality and density across scales. The spatial distribution and frequency of these types across the four cities gives an objective summary of their spatial structure, identifying common as well as unique traits.
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| 15. |
- Berghauser Pont, Meta, 1972, et al.
(författare)
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Quantitative comparison of the distribution of densities in three Swedish cities
- 2017
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Ingår i: Proceedings ISUF 2017 XXIV international conference: City and territory in the globalization age. - : UNIV POLITECNICA VALENCIA. ; , s. 1327-1336
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Konferensbidrag (refereegranskat)abstract
- Typologies play a role in urban studies since a long time, but definitions are often rather abstract, ill-defined and at worst end in fixed stereotypes hiding underlying spatial complexity. Traditional typologies are focussing on separate elements, which allow for understanding crucial differences of one spatial feature in greater detail, but lack the capacity to capture the interrelation between elements. Further, they often focus on one scale level and therefore lack to acknowledge for interscalarity. Recent publications define morphological typologies based on quantitative variables, building on the seminal book ´Urban Space and Structures´ by Martin and March, published in 1972, but using more advanced spatial analysis and statistics. These approaches contribute to the discussion of types in two ways: firstly, they define types in a precise and repeatable manner allowing for city-scale comparisons; secondly, they acknowledge cross-scale dynamics important for e.g. living qualities and economic processes where not only the local conditions are important, but also the qualities in proximity. This paper focuses on the comparison of building types in three Swedish cities, using the multi-variable and multi-scalar density definition. A statistical clustering method is used to classify cases according to their measured similarity across the scales. The results show that working with types is a fruitful way to reveal the individual identity of these types, compare cities and highlight some differences in the way the three cities are structured.
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| 16. |
- Berghauser Pont, Meta, 1972, et al.
(författare)
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Spatial Morphology Lab
- 2018
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Annan publikation (övrigt vetenskapligt/konstnärligt)
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| 17. |
- Berghauser Pont, Meta, 1972, et al.
(författare)
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The spatial distribution and frequency of street, plot and building types across five European cities
- 2019
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Ingår i: Environment and Planning B-Urban Analytics and City Science. - : SAGE Publications. - 2399-8083 .- 2399-8091. ; 46:7, s. 1226-1242
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Tidskriftsartikel (refereegranskat)abstract
- Typologies have always played an important role in urban planning and design practice and formal studies have been central to the field of urban morphology. These studies have predominantly been of a historical-qualitative nature and do not support quantitative comparisons between urban areas and between different cities, nor offer the precise and comprehensive descriptions needed by those engaged in urban planning and design practice. To describe contemporary urban forms, which are more diffuse and often elude previous historic typologies, systematic quantitative methods can be useful but, until recently, these have played a limited role in typo-morphological studies. This paper contributes to recent developments in this field by integrating multi-variable geometric descriptions with inter-scalar relational descriptions of urban form. It presents typologies for three key elements of urban form (streets, plots and buildings) in five European cities, produced using statistical clustering methods. In a first instance, the resulting typologies contribute to a better understanding of the characteristics of streets, plots and buildings. In particular, the results offer insight into patterns between the types (i.e. which types are found in combination and which not) and provide a new large scale comparative analysis across five European cities. To conclude, a link between quantitative analysis and theory is established, by testing two well-known theoretical propositions in urban morphology: the concept of the burgage cycle and the theory of natural movement.
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| 18. |
- Berghauser Pont, Meta, 1972, et al.
(författare)
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Urban Calculator
- 2019
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Major steps have in recent decades been taken when it comes to understanding how cities work. Essential is the change from understanding cities as locations to understanding them as flows (Batty 2013). In principle this means that we need to understand locations (or places) as defined by flows (or different forms of traffic), rather than locations only served by flows. This implies that we need to understand the built form and spatial structure of cities as a system, that by shaping flows creates a series of places with very specific relations to all other places in the city, which also give them very specific performative potentials. It also implies the rather fascinating notion that what happens in one place is dependent on its relation to all other places (Hillier 1996). Hence, to understand the individual place, we need a model of the city as a whole. Extensive research in this direction has taken place in recent years, that has also spilled over to urban design practice, not least in Sweden, where the idea that to understand the part you need to understand the whole is starting to be established. With the Urban Calculator that we present here, we take a important leap towards integrating this knowledge in the daily practice of urban designers and other professionals active in urban development. The objective of this project is to provide a user-friendly software that allows for effective knowledge transfer. The software will support the evaluation of different urban scenario’s as well as mirror these against a references database. The project is expected to impact decision making in urban development projects, especially during the initial phases.
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| 19. |
- Berghauser Pont, Meta, 1972, et al.
(författare)
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What can typology explain that configuration can not?
- 2015
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Ingår i: 10th International Space Syntax Symposium, SSS 2015, University College London (UCL)London, United Kingdom, 13-7 July 2015. - 9780993342905 ; , s. 43:1-43:16
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Konferensbidrag (refereegranskat)abstract
- This paper aims to contribute to a better understanding of the relation between space syntax and the adjacent field of urban morphology. We believe that this can benefit both fields in their further development and more specifically, this paper will show how typical approaches in urban morphology can be helpful in explaining variations in correlations between space syntax measures and pedestrian movement. That these correlations vary is shown by various scholars and the reoccurring argument is missing data input such as, amongst others, density, land use and public transport. We also see a problem in space syntax analysis in that there seems to be little consistency in exactly how pedestrian movement is best captured, that is, with what measure and at which radius. Hillier and Iida (2005) show for instance in their study of four London areas that the ‘best radius’ can be found with a radius of analysis varying from 12 to 102 segments. This is troublesome, especially if we are not able to explain why this is the case. In this paper we propose to use two typo-morphological approaches to explain such variations: the classification system for street morphologies developed by Marshall (2005) and the integrated density approach ‘Spacemate’ developed by Berghauser Pont and Haupt (2009; 2010). The results presented in this paper show that different neighbourhood types, in terms of density and street morphology, indeed have different patterns driving pedestrian behaviour and following that, ask for tailored spatial analysis. It is shown that in denser and more ‘griddy’ street patterns, the betweenness centrality measure is able to capture pedestrian behaviour, but in other neighbourhood types pedestrian behaviour is better captured when also closeness centrality and the distribution of attractions is included. Further, it is shown that what may be called the ’scale of operation’ of each neighbourhood plays a crucial role which needs to be considered when choosing the radius of analysis. This paper shows further that a first indication of pedestrian intensity and pedestrian distribution can be arrived at by using two relative simple spatial measures: ‘accessible density’ and ‘attraction betweenness’ respectively. Although this study is just a first tentative exploration in combining urban morphology with space syntax, we suggest that we based on these preliminary results can see many advantages in pursuing research in this direction.
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| 20. |
- Bergström, Anders, 1965-, et al.
(författare)
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KI Arkitektur och kunskapsmiljö : Tävlingen/Etableringen/Förnyelsen
- 2010. - 1
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Bok (övrigt vetenskapligt/konstnärligt)abstract
- Universitet och högskolor förknippas liksom många andra institutioner och verksamheter i vårt samhälle i så hög grad med sina byggnader att verksamheter och byggnader kan vara svåra att skilja från varandra. Det vi kan ana är att människor alltid använt byggandet för att etablera och upprätthålla både samhälleliga funktioner och mer vardagliga seder och bruk. Aktiviteter som lyckas etablera sig i byggd form blir en naturlig och stödjande del av vår fysiska verklighet, medan aktiviteter som inte blir manifesterade kan få svårare att överleva. I vår samtid, som präglas av en ständigt pågående förändring, kan etablerade lösningar också stå i vägen för ny utveckling och hindra oss från att se hur bebyggelsen skulle kunna utformas på ett annorlunda sätt. Mot denna bakgrund utgör KI – Karolinska Institutet – ett intressant exempel på samspelet mellan medvetet utformad bebyggelse och kvalificerad verksamhet. Karolinska Institutet är sedan lång tid tillbaka en av landets mest kreativa kunskapsmiljöer. Institutets bebyggelse har tillkommit under en längre tidsperiod och karakteriseras av höga ambitioner, där olika idéer om kunskapsproduktionens villkor har styrt såväl den övergripande planeringen som de enskilda byggnadernas utformning. Genom att tydliggöra dessa idéer och samtidigt undersöka hur det byggda resultatet fungerar, hoppas vi kunna bidra inte bara till en förståelse för Karolinska Institutets utveckling utan också till en mer generell kunskap om relationen mellan arkitektur och kunskapsmiljö.
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| 21. |
- Bobkova, Evgeniya, 1988, et al.
(författare)
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Multivariable measures of plot systems: describing the potential link between urban diversity and spatial form based on the spatial capacity concept
- 2017
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Ingår i: 11th International Space Syntax Symposium, SSS 2017, Lisbon, Portugal, 3-7 July 2017. - 9789729899447 ; , s. 47.1-47.15
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Konferensbidrag (refereegranskat)abstract
- Urban diversity is a widely recognized concept used to describe vitality in cities and is often associated with cities that perform successfully both from an economic and social perspective. The concept of urban diversity was introduced to the broader public by Jane Jacobs, later inherited by the New Urbanism movement and has been extensively used in contemporary urban discourse. While theoretical definitions of urban diversity are manifold, measures that allow for a description of a more rigorous kind are less developed (Talen, 2006, 2008). The aim of this paper is to identify fundamental variables of spatial form that could potentially contribute to urban diversity and socio-economic performativity. In particular, the paper investigates the concept of spatial capacity, that is, the impact of plot systems (i.e. land division) on urban diversity (Marcus, 2000, 2010; Sayyar & Marcus, 2013) While the link to urban diversity is presented here as an essential starting point, the aim of this paper is to develop purely morphological measures of plot systems and to test if these measures can identify the difference among particular urban contexts. The study of the direct relation between spatial form and socio-economic performance is beyond the scope of this paper and will be presented in forthcoming studies. The first part of the paper presents a theoretical framework to establish the fundamental morphological parameters of plot systems that can potentially contribute to urban diversity. The second part of the paper describes an empirical study of selected areas in Stockholm, Sweden, where essential morphological aspects of plot systems are explored and measured, using the proposed parameters of the plot systems. Importantly, the plot systems are measured here in geometric terms, capturing size, openness and compactness of plots, and also in configurational terms through accessible number and diversity of plots using the Place Syntax Tool (Ståhle, 2008). The paper is set within the framework of a bigger project aimed at developing and testing sound methodologies for measuring central variables of spatial form: density, diversity and distance (Berghauser Pont et al. 2017; Berghauser Pont & Marcus, 2015; Marcus & Berghauser Pont, 2015).
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| 22. |
- Bobkova, Evgeniya, 1988, et al.
(författare)
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Plot systems and property rights: morphological, juridical and economic aspects
- 2018
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Ingår i: 24th ISUF International Conference. Book of Papers. - 9788490485743 ; , s. 177-185
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Konferensbidrag (refereegranskat)abstract
- The importance of the plot (also referred to as ‘parcel’, ‘lot’ or ‘property’) as one of the fundamental elements of urban form is well recognized within the field of urban morphology. It has been described as a basic element in the pattern of land divisions that works as an organizational grid for urban form. A distinctive feature of the plot is its ambiguous character: it is at the same time a legal unit defining property rights, a spatially defined physical entity and an institutional tool designating land use in urban planning. In urban space, these dimensions act together to drive the evolution of built form. In this paper, we will investigate the entanglements of the morphological, juridical and economic definitions of the term. By resolving these we may better address and compare the vital layer of plot systems in different urban contexts and identify common fundamental aspects of the notion of plot systems and private properties. What we more specifically aim to capture with this comprehensive concept is the relation between urban form and legal and socio-economic space, where the plot can be identified as an element that creates a generic affordance for occupancy, in contrast to mobility, in cities of most kinds. The intended outcome of the paper is to contribute to unveiling the complex nature of the plot systems, bridging between spatial and non-spatial dimensions of cities, that is, more precisely, a potential to establish, not least, a stronger interface between the urban design and urban planning practices.
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| 23. |
- Bobkova, Evgeniya, 1988, et al.
(författare)
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Structure of Plot Systems and Economic Activity in Cities: Linking Plot Types to Retail and Food Services in London, Amsterdam and Stockholm
- 2019
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Ingår i: Urban Science. - : MDPI AG. - 2413-8851. ; 3:3
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Tidskriftsartikel (refereegranskat)abstract
- Plot systems (also referred to as "property", "parcel", or "lot") are generally recognised as the organisational framework of urban form that contributes to the economic performance of cities. However, studies that link the spatial form of plots to economic data are limited. The paper builds on the theory of Webster and Lai, which argues that the process of urbanisation is aligned with increased subdivision of property rights (increased division of land into plots, for example) due to the process of economic specialisation that is typical of cities. The aim of the paper is to test this theory by analysing whether there is a correlation between: (a) the shape and structure of plot systems, which are classified as types based on three plot metrics (size, compactness, and frontage index) and b) economic activity, measured as the concentration of retail and food activities per plot. The paper will use statistical analysis to relate plot types to economic activity in three European cities (London, Amsterdam, and Stockholm). The results provide empirical support for our initial hypothesis and Webster and Lai’s theory, which states that plots of smaller size, more regular shape, and smaller frontage generally correspond to a higher concentration of economic activity in cities.
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| 24. |
- Bobkova, Evgeniya, 1988, et al.
(författare)
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Towards analytical typologies of plot systems: quantitative profile of five European cities
- 2021
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Ingår i: Environment and Planning B: Urban Analytics and City Science. - : SAGE Publications. - 2399-8091 .- 2399-8083. ; 48:4, s. 604-620
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Tidskriftsartikel (refereegranskat)abstract
- The importance of the plot (also referred to as ‘property’) as one of the fundamental elements of urban form is well recognized within the field of urban morphology. Despite the fact that it is often described as the basic element in the pattern of land divisions, which are essential as organizational frameworks for urban form, studies offering comprehensive descriptions and classifications of plot systems are quite scant. The aim of the paper is to introduce a classification of plot systems into typologies based on five European cities, in order to distinguish particular spatial differences and similarities in terms of their plot structure. The proposed typologies are developed using unsupervised k-means cluster analysis based on numeric attributes derived from central theories in urban morphology. The introduced typologies are essentially configurational, allowing collective systematic properties of plot systems to be captured. Numeric attributes include plot differentiation (or plot size), plot frontage and compactness ratio, corresponding to essential qualities of plot systems such as the capacity to carry differences in space, the ability to operate as interface between street and building and providing a framework for evolution of built form over time. All three attributes are translated into configurational measures in order to capture the context of the plot system, rather than the parameters of individual plots. The combination of these deductively defined variables with algorithmically defined classification methods results in seven plot types that can be used to scale up traditional urban morphological analysis to whole city regions and conduct substantial comparison of patterns within, but also between these regions. Further, it also makes it possible to describe commonly recognized plot patterns and discover new ones.
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| 25. |
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| 26. |
- Colding, Johan, 1958-, et al.
(författare)
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Applying a Systems Perspective on the Notion of the Smart City
- 2020
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Ingår i: Smart Cities. - : MDPI AG. - 2624-6511. ; 3:2
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Tidskriftsartikel (refereegranskat)abstract
- This paper focuses on the need for a widened definition of the notion of technology within the smart city discourse, with a particular focus on the “built environment”. The first part of the paper describes how current tendencies in urban design and architecture are inclined to prioritize high tech-solutions at the expense of low-tech functionalities and omits that information and communication technology (ICT) contrasts the art of building cities as an adaptable and habitually smart technology in itself. It continues with an elaboration on the need for expanding the limits of system boundaries for a better understanding of the energy and material telecouplings that are linked to ICT solutions and account for some perils inherent in smart technologies, such as rebound effects and the difficulty of measuring the environmental impacts of ICT solutions on a city level. The second part of the paper highlights how low-tech technologies and nature-based solutions can make cities smarter, representing a new technology portfolio in national and international policies for safeguarding biodiversity and the delivery of a range of ecosystem services, promoting the necessary climate-change adaption that cities need to prioritize to confer resilience.
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| 27. |
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| 28. |
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| 29. |
- Colding, Johan, et al.
(författare)
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Frontiers in Social-Ecological Urbanism
- 2022
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Ingår i: Land. - : MDPI AG. - 2073-445X. ; 11:6
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Tidskriftsartikel (refereegranskat)abstract
- This paper describes a new approach in urban ecological design, referred to as social- ecological urbanism (SEU). It draws from research in resilience thinking and space syntax in the analysis of relationships between urban processes and urban form at the microlevel of cities, where social and ecological services are directly experienced by urban dwellers. The paper elaborates on three types of media for urban designers to intervene in urban systems, including urban form, institutions, and discourse, that together function as a significant enabler of urban change. The paper ends by presenting four future research frontiers with a potential to advance the field of social-ecological urbanism: (1) urban density and critical biodiversity thresholds, (2) human and non-human movement in urban space, (3) the retrofitting of urban design, and (4) reversing the trend of urban ecological illiteracy through affordance designs that connect people with nature and with each other.
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| 30. |
- Egegård, Colin Hultgren, et al.
(författare)
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Climate Proofing Cities by Navigating Nature-Based Solutions in a Multi-Scale, Social–Ecological Urban Planning Context: A Case Study of Flood Protection in the City of Gothenburg, Sweden
- 2024
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Ingår i: Land. - : MDPI. - 2073-445X. ; 13:2
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Tidskriftsartikel (refereegranskat)abstract
- Due to unsustainable land management and climate change, floods have become more frequent and severe over the past few decades and the problem is exacerbated in urban environments. In the context of climate-proofing cities, the importance of nature-based solutions (NBSs), obtaining relevant outcomes in the form of ecosystem services, has been highlighted. Although the role of ecosystem services in building resilience against negative climate change effects is widely recognized and there is an identified need to better integrate ecosystem services into urban planning and design, this has proven difficult to operationalize. A critical limitation is that modeling is a time-consuming and costly exercise. The purpose is to roughly estimate the ecosystem service of water run-off mitigation through simplified, cost-effective, and user-friendly modelling at three nested biophysical scales, under four climate change scenarios. Using the Swedish city of Gothenburg as an example, we propose an approach for navigating NBS-oriented flooding adaptation strategies, by quantifying the ecosystem service of water run-off mitigation at three nested biophysical scales, under four climate change scenarios, hence, proposing an approach for how to navigate nature-based solutions in a multi-scale, social–ecological urban planning context against present and future flooding events. Our findings validate the effectiveness of employing an ecosystem service approach to better comprehend the significant climate change issue of flooding through user-friendly and cost-efficient modeling.
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| 31. |
- Eggers, Kai M., 1962-, et al.
(författare)
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Predicting outcome in acute myocardial infarction : an analysis investigating 175 circulating biomarkers
- 2021
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Ingår i: European Heart Journal. - : Oxford University Press. - 2048-8726 .- 2048-8734. ; 10:7, s. 806-812
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Tidskriftsartikel (refereegranskat)abstract
- Aims There is a paucity of studies comprehensively comparing the prognostic value of larger arrays of biomarkers indicative of different pathobiological axes in acute myocardial infarction (MI).Methods and results In this explorative investigation, we simultaneously analysed 175 circulating biomarkers reflecting different inflammatory traits, coagulation activity, endothelial dysfunction, atherogenesis, myocardial dysfunction and damage, apoptosis, kidney function, glucose-, and lipid metabolism. Measurements were performed in samples from 1099 MI patients (SWEDEHEART registry) applying two newer multimarker panels [Proximity Extension Assay (Olink Bioscience), Multiple Reaction Monitoring mass spectrometry]. The prognostic value of biomarkers regarding all-cause mortality, recurrent MI, and heart failure hospitalizations (median follow-up <= 6.6years) was studied using Lasso analysis, a penalized logistic regression model that considers all biomarkers simultaneously while minimizing the risk for spurious findings. Tumour necrosis factor-related apoptosis-inducing ligand receptor 2 (TRAIL-R2), ovarian cancer-related tumour marker CA 125 (CA-125), and fibroblast growth factor 23 (FGF-23) consistently predicted all-cause mortality in crude and age/sex-adjusted analyses. Growth-differentiation factor 15 (GDF-15) was strongly predictive in the crude model. TRAIL-R2 and B-type natriuretic peptide (BNP) consistently predicted heart failure hospitalizations. No biomarker predicted recurrent MI. The prognostic value of all biomarkers was abrogated following additional adjustment for clinical variables owing to our rigorous statistical approach.Conclusion Apart from biomarkers with established prognostic value (i.e. BNP and to some extent GDF-15), several 'novel' biomarkers (i.e. TRAIL-R2, CA-125, FGF-23) emerged as risk predictors in patients with MI. Our data warrant further investigation regarding the utility of these biomarkers for clinical decision-making in acute MI.
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| 32. |
- Eggers, Kai M., 1962-, et al.
(författare)
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Sex-differences in circulating biomarkers during acute myocardial infarction : An analysis from the SWEDEHEART registry
- 2021
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Ingår i: PLoS ONE. - : Public Library of Science (PLoS). - 1932-6203. ; 16:4 April
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Tidskriftsartikel (refereegranskat)abstract
- Background Sex-differences in the pathobiology of myocardial infarction are well established but incompletely understood. Improved knowledge on this topic may help clinicians to improve management of men and women with myocardial infarction. Methods In this registry-based cohort study (SWEDEHEART), we analyzed 175 circulating biomarkers reflecting various pathobiological axes in 856 men and 243 women admitted to Swedish coronary care units because of myocardial infarction. Two multimarker panels were applied (Proximity Extension Assay [Olink Bioscience], Multiple Reaction Monitoring mass spectrometry). Lasso analysis (penalized logistic regression), multiple testing-corrected Mann- Whitney tests and Cox regressions were used to assess sex-differences in the concentrations of these biomarkers and their implications on all-cause mortality and major adverse events (median follow-up up to 6.6 years). Results Biomarkers provided a very high discrimination between both sexes, when considered simultaneously (c-statistics 0.972). Compared to women, men had higher concentrations of six biomarkers with the most pronounced differences seen for those reflecting atherogenesis, myocardial necrosis and metabolism. Women had higher concentrations of 14 biomarkers with the most pronounced differences seen for those reflecting activation of the reninangiotensin- aldosterone axis, inflammation and for adipokines. There were no major variations between sexes in the associations of these biomarkers with outcome. Conclusions Severable sex-differences exist in the expression of biomarkers in patients with myocardial infarction. While these differences had no impact on outcome, our data suggest the presence of various sex-related pathways involved in the development of coronary atherosclerosis, the progression to plaque rupture and acute myocardial damage, with a greater heterogeneity in women.
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| 33. |
- Erixon Aalto, Hanna, 1975-, et al.
(författare)
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Towards A Social-Ecological Urbanism : Co-producing knowledge through design in the Albano Resilient Campus project in Stockholm
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Annan publikation (övrigt vetenskapligt/konstnärligt)abstract
- If we are to promote urban sustainability and resilience, social-ecological knowledge must be better integrated in urban planning and design projects. Due to gaps in the two cultures of thinking associated with the disciplines of ecology and design, such integration has, however, proven challenging. In mainstream practice, ecologists often act as sub-consultants; they are seldom engaged in the creative and conceptual phases of the process. Conversely, research aiming to bridgethe gap between design and ecology has tended to be dominated by arelatively static and linear outlook on what the design process is, and what it could be. Further, few concrete examples of the co-production of ecological and design knowledge exist. In this paper, we give an account of a transdisciplinary design proposal for Albano Resilient Campus in Stockholm, discussing how design – seen as a process and an assemblage of artifacts – can act as a framework for co-producing knowledge and operationalizing concepts of resilience and ecosystem services. Througha design-based and action-oriented approach, we discuss how such a collaborative design process may integrate ecological knowledge into urban design through three concrete practices: a) iterative prototyping and generative matrix models; b) designerly mediators or “touchstones”; and c) legible, open-ended, comprehensive narratives. In the conclusion, we sketch the contours of a social-ecological urbanism, speculatingon possible broader and changed roles for ecologists, designers, and associated actors within this framework.
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| 34. |
- Erixon Aalto, Hanna, et al.
(författare)
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Towards a social-ecological urbanism: Co-producing knowledge through design in the Albano Resilient Campus project in Stockholm
- 2018
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Ingår i: Sustainability. - : MDPI AG. - 2071-1050. ; 10:3
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Tidskriftsartikel (refereegranskat)abstract
- If we are to promote urban sustainability and resilience, social-ecological knowledge must be better integrated in urban planning and design projects. Due to gaps in the two cultures of thinking that are associated with the disciplines of ecology and design, such integration has, however, proven to be challenging. In mainstream practice, ecologists often act as sub-consultants; they are seldom engaged in the creative and conceptual phases of the process. Conversely, research aiming to bridge the gap between design and ecology has tended to be dominated by a relatively static and linear outlook on what the design process is, and what it could be. Further, few concrete examples of the co-production of ecological and design knowledge exist. In this paper, we give an account of a transdisciplinary design proposal for Albano Resilient Campus in Stockholm, discussing how design-seen as a process and an assemblage of artifacts-can act as a framework for co-producing knowledge and operationalizing concepts of resilience and ecosystem services. Through a design-based and action-oriented approach, we discuss how such a collaborative design process may integrate ecological knowledge into urban design through three concrete practices: (a) iterative prototyping; (b) generative matrix models; and, (c) legible, open-ended, comprehensive narratives. In the conclusion, we sketch the contours of a social-ecological urbanism, speculating on possible broader and changed roles for ecologists, designers, and the associated actors within this framework.
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| 35. |
- Gaines, Hans, et al.
(författare)
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Six-week follow-up after HIV-1 exposure: a position statement from the Public Health Agency of Sweden and the Swedish Reference Group for Antiviral Therapy
- 2016
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Ingår i: Infectious Diseases. - : Informa UK Limited. - 2374-4235 .- 2374-4243. ; 48:2, s. 93-98
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Forskningsöversikt (refereegranskat)abstract
- In 2014 the Public Health Agency of Sweden and the Swedish Reference Group for Antiviral Therapy (RAV) conducted a review and analysis of the state of knowledge on the duration of follow-up after exposure to human immunodeficiency virus (HIV). Up until then a follow-up of 12 weeks after exposure had been recommended, but improved tests and new information on early diagnosis motivated a re-evaluation of the national recommendations by experts representing infectious diseases and microbiology, county medical officers, the RAV, the Public Health Agency, and other national authorities. Based on the current state of knowledge the Public Health Agency of Sweden and the RAV recommend, starting in April 2015, a follow-up period of 6 weeks after possible HIV-1 exposure, if HIV testing is performed using laboratory-based combination tests detecting both HIV antibody and antigen. If point-of-care rapid HIV tests are used, a follow-up period of 8 weeks is recommended, because currently available rapid tests have insufficient sensitivity for detection of HIV-1 antigen. A follow-up period of 12 weeks is recommended after a possible exposure for HIV-2, since presently used assays do not include HIV-2 antigens and only limited information is available on the development of HIV antibodies during early HIV-2 infection. If pre- or post-exposure prophylaxis is administered, the follow-up period is recommended to begin after completion of prophylaxis. Even if infection cannot be reliably excluded before the end of the recommended follow-up period, HIV testing should be performed at first contact for persons who seek such testing.
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| 36. |
- Giusti, Matteo, et al.
(författare)
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Nature Routines and Affinity with the Biosphere: A Case Study of Preschool Children in Stockholm
- 2015
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Ingår i: Children, Youth and Environments. - 1546-2250. ; 24:3, s. 16-42
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Tidskriftsartikel (refereegranskat)abstract
- Do nature-deficit routines undermine affinity with the biosphere? We assessed social-ecological features in Stockholm that afford nature experiences and analyzed the accessibility of these natural areas to preschools. We then selected preschools with contrasting accessibilities. The nature routines resulting from differing outdoor possibilities in preschool life were investigated in relation to children’s affinity with the biosphere. Preschools with routines closer to nature have children who are more empathetic and concerned for non-human life forms, and more cognitively aware of human-nature interdependence. We conclude that, nature-rich routines in cities significantly correlate with higher children’s ability to develop affinity with the biosphere.
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| 37. |
- Gren, Åsa, et al.
(författare)
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How smart is smart growth? : Examining the environmental validation behind city compaction
- 2019
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Ingår i: Ambio. - : Springer Netherlands. - 0044-7447 .- 1654-7209. ; 48:6, s. 580-589
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Forskningsöversikt (refereegranskat)abstract
- Smart growth (SG) is widely adopted by planners and policy makers as an environmentally friendly way of building cities. In this paper, we analyze the environmental validity of the SG-approach based on a review of the scientific literature. We found a lack of proof of environmental gains, in combination with a great inconsistency in the measurements of different SG attributes. We found that a surprisingly limited number of studies have actually examined the environmental rationales behind SG, with 34% of those studies displaying negative environmental outcomes of SG. Based on the insights from the review, we propose that research within this context must first be founded in more advanced and consistent knowledge of geographic and spatial analyses. Second, it needs to a greater degree be based on a system's understanding of urban processes. Third, it needs to aim at making cities more resilient, e.g., against climate-change effects.
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| 38. |
- Hjort, Marcus, 1988-, et al.
(författare)
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Biomarker Concentrations and Their Temporal Changes in Patients With Myocardial Infarction and Nonobstructive Compared With Obstructive Coronary Arteries : Results From the PLATO Trial
- 2023
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Ingår i: Journal of the American Heart Association. - : American heart association. - 2047-9980. ; 12:1
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Tidskriftsartikel (refereegranskat)abstract
- Background: The pathobiology of myocardial infarction (MI) with nonobstructive coronary arteries (MINOCA) is often uncertain. Investigating biomarker concentrations and their changes may offer novel pathophysiological insights.Methods and Results: In this post hoc study of the PLATO (Platelet Inhibition and Patient Outcomes) trial, concentrations of hs‐cTnT (high‐sensitivity cardiac troponin T), NT‐proBNP (N‐terminal pro‐B‐type natriuretic peptide), hs‐CRP (high‐sensitivity C‐reactive protein), and GDF‐15 (growth differentiation factor 15) were measured in patients with MINOCA at baseline (n=554) and at 1‐month follow‐up (n=107). For comparisons, biomarkers were also measured in patients with MI with obstructive (stenosis ≥50%) coronary artery disease (baseline: n=11 106; follow‐up: n=2755]). Adjusted linear regression models were used to compare concentrations and their short‐ and long‐term changes. The adjusted geometric mean ratios (GMRs) in patients with MINOCA (median age, 61 years; 50.4% women) indicated lower hs‐cTnT (GMR, 0.77 [95% CI, 0.68–0.88]) but higher hs‐CRP (GMR, 1.21 [95% CI, 1.08–1.37]) and GDF‐15 concentrations (GMR, 1.06 [95% CI, 1.02–1.11]) at baseline compared with patients with MI with obstructive coronary artery disease, whereas NT‐proBNP concentrations were similar. Temporal decreases in hs‐cTnT, NT‐proBNP, and hs‐CRP concentrations until 1‐month follow‐up were more pronounced in patients with MINOCA. At follow‐up, patients with MINOCA had lower concentrations of hs‐cTnT (GMR, 0.71 [95% CI, 0.60–0.84]), NT‐proBNP (GMR, 0.45 [95% CI, 0.36–0.56]), and hs‐CRP (GMR, 0.68 [95% CI, 0.53–0.86]). One‐month GDF‐15 concentrations were similar between both groups with MI.Conclusions: Biomarker concentrations suggest greater initial inflammatory activity, similar degree of myocardial dysfunction, and less pronounced myocardial injury during the acute phase of MINOCA compared with MI with obstructive coronary artery disease but also faster myocardial recovery.CLINICAL TRAIL REGISTRATION: URL: http://www.clinicaltrials.gov. Unique identifier: NCT00391872.
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| 39. |
- Hjort, Marcus, et al.
(författare)
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Differences in biomarker concentrations and predictions of long-term outcome in patients with ST-elevation and non-ST-elevation myocardial infarction
- 2021
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Ingår i: Clinical Biochemistry. - : Elsevier BV. - 0009-9120 .- 1873-2933. ; 42, s. 1268-1268
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Tidskriftsartikel (refereegranskat)abstract
- Background: Differences in biomarkers reflective of pathobiology and prognosis between ST-elevation myocardial infarction (STEMI) and non-ST-elevation myocardial infarction (NSTEMI) are incompletely understood and may offer insights for tailoring of treatment. Methods: This registry-based study included 538 STEMI and 544 NSTEMI patients admitted 2008–2014. Blood samples were collected day 1–3 after admission and 175 biomarkers were analyzed using Proximity Extension Assay and Multiple Reaction Monitoring mass spectrometry. Adjusted Lasso analysis (penalized logistic regression model) was used to select biomarkers that discriminated STEMI from NSTEMI patients. Biomarkers identified by the Lasso analysis were then evaluated in adjusted Cox regressions for associations with death or major adverse cardiovascular events. Results: Biomarkers strongly discriminated STEMI and NSTEMI when considered simultaneously in adjusted Lasso analysis (c-statistic 0.764). Eleven biomarkers independently discriminated STEMI and NSTEMI; seven showing higher concentrations in STEMI: myoglobin, N-terminal pro-B-type natriuretic peptide, serum amyloid A-1 and A-2 protein, ST2 protein, interleukin-6 and chitinase-3-like protein 1; and four showing higher concentrations in NSTEMI: fibroblast growth factor 23, membrane-bound aminopeptidase P, tumor necrosis factor-related activation-induced cytokine and apolipoprotein C-I. During up to 6.6 years of prognostic follow-up, none of these biomarkers exhibited different associations with adverse outcome between STEMI and NSTEMI. Conclusions: In the acute setting, biomarkers indicated greater myocardial dysfunction and inflammation in STEMI, whereas they displayed a more diverse pathophysiologic pattern in NSTEMI patients. These biomarkers were similarly prognostic in STEMI and NSTEMI patients. The results do not support treating STEMI and NSTEMI patients differently based on the concentrations of these biomarkers.
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| 40. |
- Hjort, Marcus, et al.
(författare)
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Increased Inflammatory Activity in Patients 3 Months after Myocardial Infarction with Nonobstructive Coronary Arteries
- 2019
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Ingår i: Clinical Chemistry. - : AMER ASSOC CLINICAL CHEMISTRY. - 0009-9147 .- 1530-8561. ; 65:8, s. 1023-1030
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Around 5%-10% of patients with myocardial infarction (MI) present with nonobstructive coronary arteries (MINOCA). We aimed to assess pathophysiological mechanisms in MINOCA by extensively evaluating cardiovascular biomarkers in the stable phase after an event, comparing MINOCA patients with cardiovascular healthy controls and MI patients with obstructive coronary artery disease (MI-CAD).METHODS: Ninety-one biomarkers were measured with a proximity extension assay 3 months after MI in 97 MINOCA patients, 97 age-and sex-matched MI-CAD patients, and 98 controls. Lasso analyses (penalized logistic regression models) and adjusted multiple linear regression models were used for statistical analyses.RESULTS: In the Lasso analysis (MINOCA vs MI-CAD), 8 biomarkers provided discriminatory value: P-selectin glycoprotein ligand 1, C-X-C motif chemokine 1, TNF-related activation-induced cytokine, and pappalysin-1 (PAPPA) with increasing probabilities of MINOCA, and tissue-type plasminogen activator, B-type natriuretic peptide, myeloperoxidase, and interleukin-1 receptor antagonist protein with increasing probabilities of MI-CAD. Comparing MINOCA vs controls, 7 biomarkers provided discriminatory value: N-terminal pro-B-type natriuretic peptide, renin, NF-kappa-B essential modulator, PAPPA, interleukin-6, and soluble urokinase plasminogen activator surface receptor with increasing probabilities of MINOCA, and agouti-related protein with increasing probabilities of controls. Adjusted multiple linear regression analyses showed that group affiliation was associated with the concentrations of 7 of the 8 biomarkers in the comparison MINOCA vs MI-CAD and 5 of the 7 biomarkers in MINOCA vs controls.CONCLUSIONS: Three months after the MI, the biomarker concentrations indicated greater inflammatory activity in MINOCA patients than in both MI-CAD patients and healthy controls, and a varying degree of myocardial dysfunction among the 3 cohorts.
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| 41. |
- Koch, Daniel, 1976-, et al.
(författare)
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Configuring Academia : Academic entities and spatial identities
- 2012
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Ingår i: Proceedings: Eighth International Space Syntax Symposium. - 9789563458626 ; , s. 8147:1-8147:21
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Konferensbidrag (refereegranskat)abstract
- Academia has a long tradition of structuring itself around academic subjects, often epitomized through architectural manifestations such as individual buildings and whole campi. These materializations serve as sites of research and education, but also serve to describe the university as whole as well as its institutional parts, their definitions and their interrelations. This description goes deeper than simple definition of specific buildings for specific activities or subjects, but rather describes the idea of academic structures and relations between different people in the campi. This paper makes a comparative study of one of the more successful research universities in Stockholm, studying the use of spatial configuration and programming when the main campus was established in the first decade after the second world war, and how it was used in the following large-scale expansion beginning in the 1960s. It shows how, for both pragmatic and ideological reasons, radical shifts in the relation between buildings and academic subjects, as well as academic individuals and the units central to these descriptions, have taken place in the years in-between, and scrutinizes some of the effects coming with such a change.
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| 42. |
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| 43. |
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| 44. |
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| 45. |
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| 46. |
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| 47. |
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| 48. |
- Legeby, Ann, et al.
(författare)
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Does the urban structure of Swedish cities inhibit the sharing of public space?
- 2011
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Ingår i: Built Environment. - Marcham : Alexandrine Press. - 0263-7960. ; 37:2, s. 155-169
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Tidskriftsartikel (refereegranskat)abstract
- This paper argues that a strong focus on residential segregation limits the understanding of the role of the built environment. The city is used as more than just a place of residence; urban life is far from restricted to where we live. The potential for interplay that develops as people share public space is argued to be just as important for integration processes as the residential mix. In addition, this article examines shortcomings related to the definition of residential segregation because of limitations within the scientific analysis of urban space: the evident difficulties in delimiting relevant geographical units and delimiting relevant social groups. The study is based on empirical analysis of Södertälje, Sweden. Södertälje topped international news when its mayor informed the US Congress that the city had managed to receive more refugees from the war in Iraq than the US and Canada combined. However, to what extent are these new immigrants given access to Swedish society through everyday practices? The results highlight how segregation in public space – including impaired accessibility to a range of resources such as places of work and contact with other people – is a very strong feature of excluded areas and is strongly disadvantageous for newcomers. These results challenge some of the beliefs in the current public debate as well as some of the principles used by Swedish authorities to ameliorate segregation.
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| 49. |
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| 50. |
- Legeby, Ann, 1972-, et al.
(författare)
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Street Interaction and Social Inclusion
- 2015. - 1
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Ingår i: Suburban Urbanities. - London : UCL Press. - 9781910634158 - 9781910634134 ; , s. 239-262
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Bokkapitel (refereegranskat)abstract
- Suburban space has traditionally been understood as a formless remnant of physical city expansion, without a dynamic or logic of its own. Suburban Urbanities challenges this view by defining the suburb as a temporally evolving feature of urban growth.Anchored in the architectural research discipline of space syntax, this book offers a comprehensive understanding of urban change, touching on the history of the suburb as well as its current development challenges, with a particular focus on suburban centres. Studies of the high street as a centre for social, economic and cultural exchange provide evidence for its critical role in sustaining local centres over time. Contributors from the architecture, urban design, geography, history and anthropology disciplines examine cases spanning Europe and around the Mediterranean.By linking large-scale city mapping, urban design scale expositions of high street activity and local-scale ethnographies, the book underscores the need to consider suburban space on its own terms as a specific and complex field of social practiceLaura Vaughan is Professor of Urban Form and Society at the Bartlett School of Architecture, University College London. In addition to her longstanding research into London’s suburban evolution, she has written on many other critical aspects of urbanism today.
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