| 1. |
- Ahlberg Gagnér, Viktor, 1989, et al.
(författare)
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Clustering of atomic displacement parameters in bovine trypsin reveals a distributed lattice of atoms with shared chemical properties
- 2019
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Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322 .- 2045-2322. ; 9:1
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Tidskriftsartikel (refereegranskat)abstract
- Low-frequency vibrations are crucial for protein structure and function, but only a few experimental techniques can shine light on them. The main challenge when addressing protein dynamics in the terahertz domain is the ubiquitous water that exhibit strong absorption. In this paper, we observe the protein atoms directly using X-ray crystallography in bovine trypsin at 100 K while irradiating the crystals with 0.5 THz radiation alternating on and off states. We observed that the anisotropy of atomic displacements increased upon terahertz irradiation. Atomic displacement similarities developed between chemically related atoms and between atoms of the catalytic machinery. This pattern likely arises from delocalized polar vibrational modes rather than delocalized elastic deformations or rigid-body displacements. The displacement correlation between these atoms were detected by a hierarchical clustering method, which can assist the analysis of other ultra-high resolution crystal structures. These experimental and analytical tools provide a detailed description of protein dynamics to complement the structural information from static diffraction experiments. © 2019, The Author(s).
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| 2. |
- Arsovski, Slobodan, et al.
(författare)
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Can urban environmental problems be overcome? The case of Skopje—world’s most polluted city
- 2018
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Ingår i: Bulletin of Geography. Socio-economic Series. - : Uniwersytet Mikolaja Kopernika/Nicolaus Copernicus University. - 1732-4254 .- 2083-8298. ; 40:40, s. 17-39
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Tidskriftsartikel (refereegranskat)abstract
- The condition of the environment is one of the most fundamental concerns of cities worldwide, especially when high levels of pollution and environmental destruction exert immense impact on people’s quality of life. This paper focuses on Skopje, the capital of Macedonia, which often tops the charts as the world’s most polluted city. Despite associated problems such as congestion, ill health, and premature death, Macedonia’s scarce resources are instead spent on controversial projects, such as ‘Skopje 2014’, involving creating a national identity through massive and extremely costly constructions of neo-classical government buildings, museums and monuments. The aim of this paper is to compare the situation of Skopje to environmentally oriented activities conducted in several Polish cities and to discuss the possibility of their implementation in Skopje. Considering the scale and scope of Skopje’s environmental problems, the paper offers some priorities for action, including solutions that emphasize institution building, technical input and self-governance. It also highlights a number of economic, ecological, and socio-cultural contradictions involved in the process of achieving sustainable development.
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| 3. |
- Biegańska, Jadwiga, et al.
(författare)
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From policy to misery? The State Agricultural Farms vs. 'the rural'
- 2019
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Ingår i: Quaestiones Geographicae. - : Adam Mickiewicz University Poznan. - 2082-2103 .- 2081-6383 .- 0137-477X. ; 38:4
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Tidskriftsartikel (refereegranskat)abstract
- 1989 was a turning point within the socio-economic development in the former Eastern bloc, initiating a system transformation that affected the society at large. It also contributed to the crystallisation of certain cultural landscapes, hitherto largely illegible due to the inhibition of spatial processes encountered during Communism. In Poland, after a quarter-century of free market economy, the focus on social problems began to expand to the spatial realm as well. It became apparent that the progressive social polarisation that followed was most prominent in environments striated by a particular landscape type – the former State Agricultural Farm (PGR). Considering PGRs “the epitome of rurality” subject to ideas informing the direction of contemporary “rural development” prompts a different way of looking at the problem. In this paper, we investigate the concept of rurality in the discursive tenor of implemented policy and contrast it with contextualised empirical examples. Our findings suggest that efficient policy should be confronted with the expectations of residents at the local level, while introducing top-down actions usually ends in failure as in the case of post-PGR estates.
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| 4. |
- Brauer, Rene, et al.
(författare)
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The impact of tourism research
- 2019
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Ingår i: Annals of Tourism Research. - : Elsevier BV. - 0160-7383 .- 1873-7722. ; 77
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Tidskriftsartikel (refereegranskat)abstract
- The exceedingly competitive climate of academia has increased the emphasis on performance-based research funding. In this paper we evaluate the UK's government assessment of research impact and critically comment upon the implications for future research conduct. The key findings are as follows; firstly we provide a summary of UK tourism research impact. Secondly, we demonstrate the effect of the resulting significance gap, and comment upon the consequences of the Research Excellence Frameworks' (REF) research impact assessment in terms of a research culture change. Lastly, we proposition that the current assessment structure can have negative long-term consequences in that key issues facing tourism fall outside 'good' research impact.
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| 5. |
- Dinasquet, Julie, et al.
(författare)
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Stimulated bacterioplankton growth and selection for certain bacterial taxa in the vicinity of the ctenophore Mnemiopsis leidyi
- 2012
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Ingår i: Frontiers in Microbiology. - : Frontiers Media SA. - 1664-302X. ; 3
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Tidskriftsartikel (refereegranskat)abstract
- Episodic blooms of voracious gelatinous zooplankton, such as the ctenophore Mnemiopsis leidyi, affect pools of inorganic nutrients and dissolved organic carbon by intensive grazing activities and mucus release. This will potentially influence bacterioplankton activity and community composition, at least at local scales; however, available studies on this are scarce. In the present study we examined effects of M. leidyi on bacterioplankton growth and composition in incubation experiments. Moreover, we examined community composition of bacteria associated with the surface and gut of M. leidyi. High release of ammonium and high bacterial growth was observed in the treatments with M. leidyi relative to controls. Deep 454 pyrosequencing of 16 S rRNA genes showed specific bacterial communities in treatments with M. leidyi as well as specific communities associated with M. leidyi tissue and gut. In particular, members of Flavobacteriaceae were associated with M. leidyi. Our study shows that M. leidyi influences bacterioplankton activity and community composition in the vicinity of the jellyfish. In particular during temporary aggregations of jellyfish, these local zones of high bacterial growth may contribute significantly to the spatial heterogeneity of bacterioplankton activity and community composition in the sea.
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| 6. |
- Dymitrow, Mirek, et al.
(författare)
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Performing rurality. But who?
- 2017
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Ingår i: Bulletin of Geography. Socio-economic Series. - : Uniwersytet Mikolaja Kopernika/Nicolaus Copernicus University. - 1732-4254 .- 2083-8298. ; 38, s. 27-45
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Tidskriftsartikel (refereegranskat)abstract
- Reflective inquiries to better understand ‘the rural’ have tried to embed rural research within the notion of performativity. Performativity assumes that the capacity of language is not simply to communicate but also to consummate action, whereupon citational uses of concepts produce a series of material effects. Of late, this philosophical shift has also implicated geographers as active agents in producing, reproducing and performing rurality. This paper provides a critical evaluation of what this new insistence really means for the production of geographical knowledge. Using framework analysis as a method, the paper scrutinizes several reportedly influential papers on the topic of rural performativity. Our findings reveal that, while indeed reflexive on issues of academic integrity, methodology and ethics, performances of rurality are continuedly placed ‘out there’ amongst ‘rural people’, i.e. in a priori defined and often stereotypically understood contexts, either by way of ‘spatial delimitation’ or ‘activity delimitation’. Effectively, such testimonies provide a truncated state of fidelity, where performance-oriented reflexivity is seconded by contradictory empirics of uneven value and with few commonalities. We conclude that by turning towards performativity as an allegedly more helpful way of obtaining rural coherence, we at the same time overlook our own role in keeping ‘rural theory’ alive.
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| 7. |
- Dymitrow, Mirek, et al.
(författare)
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Sustainability—differently
- 2018
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Ingår i: Bulletin of Geography. Socio-economic Series. - : Uniwersytet Mikolaja Kopernika/Nicolaus Copernicus University. - 1732-4254 .- 2083-8298. ; 40:40
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Tidskriftsartikel (refereegranskat)abstract
- It is increasingly appreciated how all societies contain many ‘wicked problems’ or socio-cultural challenges that are multidimensional, hard to pin-down and consequently extremely challenging to solve. Obtaining functional and inclusive societal organization is not a simple matter of ‘doing it’ by subscribing to winning formulae as there are, for example, many choices to be made in the process. Moreover, given that conceptual frameworks always guide thoughts, judgments and actions, how we relate to ‘sustainability’ specifically becomes relevant if we aim to achieve a more liveable society. This journal issue expressly engages with the consequent need to recognise this complexity. It assembles a set of ‘brave’ takes on far-advanced problems bedevilling conventionally conceptualised paths towards sustainability. Arguing against oversimplification that comes from domination of polarizing concepts and unquestioned practices and rhetorics, the aim is to foster explorations into new territories from which we may learn. Ultimately, the desire to deconstruct pernicious divisions and create new hybrid syntheses can progress sustainability.
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| 8. |
- Dymitrow, Mirek, 1975
(författare)
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The concept of 'rural' as a psychosocial process: From concept attainment to concept unlearning
- 2019
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Ingår i: Quaestiones Geographicae. - : Adam Mickiewicz University Poznan. - 2081-6383 .- 0137-477X .- 2082-2103. ; 38:4, s. 15-28
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Tidskriftsartikel (refereegranskat)abstract
- Realising that human geography has been defined less by its canonical works but rather by its canonical concepts, the current status of the concept 'rural' puts a question mark over progress in human geography in terms of how well we have been able to adapt knowledge to reciprocate with societal change at large. As one of the oldest geographical concepts still in widespread use, 'rural' stands in stark contrast to the immense changes encountered by the society during the last century, let alone decades. And while this problem has been approached both empirically and philosophically, not enough stress has been put on the cognitive and sociological processes that have governed the attainment and retention of 'rural' in science, and beyond. In this vein, the aim of this paper is to provide a structured argument for facilitating a view of 'rural' less as a geographical space and more as a concept purportedly thought to define such space by way of inculcation.
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| 9. |
- Enlund, Jakob, et al.
(författare)
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Individual Carbon Footprint Reduction: Evidence from Pro-environmental Users of a Carbon Calculator
- 2023
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Ingår i: Environmental & Resource Economics. - : Springer. - 0924-6460 .- 1573-1502. ; 86
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Tidskriftsartikel (refereegranskat)abstract
- We provide the first estimates of how pro-environmental consumers reduce their total carbon footprint using a carbon calculator that covers all financial transactions. We use data from Swedish users of a carbon calculator that includes weekly estimates of users' consumption-based carbon-equivalent emissions based on detailed financial statements, official registers, and self-reported lifestyle factors. The calculator is designed to induce behavioral change and gives users detailed information about their footprint. By using a robust difference-in-differences analysis with staggered adoption of the calculator, we estimate that users decrease their carbon footprint by around 10% in the first few weeks, but over the next few weeks, the reduction fades. Further analysis suggests that the carbon footprint reduction is driven by a combination of a shift from high- to low-emitting consumption categories and a temporary decrease in overall spending, and not by changes in any specific consumption category.
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| 10. |
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