| 1. |
- Petersson, C. L.M., et al.
(author)
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Anisotropic photoemission time delays close to a Fano resonance
- 2018
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In: Nature Communications. - : Springer Science and Business Media LLC. - 2041-1723. ; 9
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Journal article (peer-reviewed)abstract
- Electron correlation and multielectron effects are fundamental interactions that govern many physical and chemical processes in atomic, molecular and solid state systems. The process of autoionization, induced by resonant excitation of electrons into discrete states present in the spectral continuum of atomic and molecular targets, is mediated by electron correlation. Here we investigate the attosecond photoemission dynamics in argon in the 20-40 eV spectral range, in the vicinity of the 3s(-1)np autoionizing resonances. We present measurements of the differential photoionization cross section and extract energy and angle-dependent atomic time delays with an attosecond interferometric method. With the support of a theoretical model, we are able to attribute a large part of the measured time delay anisotropy to the presence of autoionizing resonances, which not only distort the phase of the emitted photoelectron wave packet but also introduce an angular dependence.
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| 2. |
- Ax, M., et al.
(author)
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Regional lung ventilation in humans during hypergravity studied with quantitative SPECT
- 2013
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In: Respiratory Physiology & Neurobiology. - : Elsevier BV. - 1569-9048 .- 1878-1519. ; 189:3, s. 558-564
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Journal article (peer-reviewed)abstract
- Recently we challenged the view that arterial desaturation during hypergravity is caused by redistribution of blood flow to dependent lung regions by demonstrating a paradoxical redistribution of blood flow towards non-dependent regions. We have now quantified regional ventilation in 10 healthy supine volunteers at normal and three times normal gravity (1G and 3G). Regional ventilation was measured with Technegas (Tc-99m) and quantitative single photon emission computed tomography (SPECT). Hypergravity caused arterial desaturation, mean decrease 8%, p<0.05 vs. 1G. The ratio for mean ventilation per voxel for non-dependent and dependent lung regions was 0.81+/-0.12 during 1G and 1.63+/-0.35 during 3G (mean+/-SD), p<0.0001. Thus, regional ventilation was shifted from dependent to non-dependent regions. We suggest that arterial desaturation during hypergravity is caused by quantitatively different redistributions of blood flow and ventilation. To our knowledge, this is the first study presenting high-resolution measurements of regional ventilation in humans breathing normally during hypergravity.
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| 3. |
- Crona, Beatrice I., et al.
(author)
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Using social-ecological syndromes to understand impacts of international seafood trade on small-scale fisheries
- 2015
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In: Global Environmental Change. - : Elsevier BV. - 0959-3780 .- 1872-9495. ; 35, s. 162-175
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Journal article (peer-reviewed)abstract
- Globalization has increased the speed and flow of people, information, and commodities across space, integrating markets and increasing interdependence of geographically dispersed places worldwide. Places historically driven by largely local forces and market demands are now increasingly affected by drivers at multiple scales. Trade is particularly important in driving these changes and more fish is now exported to international markets than ever before. When small-scale fisheries are integrated into global markets, local social-ecological systems change with potentially both positive and negative impacts on livelihoods, economics and ecology, but few studies systematically investigate how and why the outcomes of market integration vary from case to case. This paper systematically assesses multiple (social, ecological, economic and institutional) local effects of market integration in cases around the world by drawing on the global environmental change syndromes approach. Furthermore, we examine the factors contributing to the syndromes observed. Our analysis identifies three distinct social-ecological syndromes associated with international seafood trade. Results suggest that the presence of strong and well-enforced institutions is the principal factor behind the syndrome characterized by sustained fish stocks, while a combination of weak institutions, patron-client relationships, high demand from China and highly vulnerable target species explain the other two syndromes distinguished by declining stocks, conflict and debt among fishers. A key finding is that the factors emerging as important for explaining the different syndromes derive from different scales (e.g. local market structures vs distant market characteristics), indicating a need for multi-level governance approaches to deal with the effects of market integration. Furthermore, the meta-analysis shows that each syndrome encompasses fisheries from multiple continents. This suggests that the increasingly global nature of the seafood trade appears to be driving local dynamics by creating similar conditions for vulnerabilities in localities around the world, lending support to the notion of teleconnectivity across geographic space.
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| 4. |
- Dellmuth, Lisa M., et al.
(author)
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Dataset on non-state actor participation in regional fisheries management organizations
- 2021
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In: Data in Brief. - : Elsevier BV. - 2352-3409. ; 34
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Research review (peer-reviewed)abstract
- In this article, we present and describe a new dataset of non-state actor participation in seven regional fisheries management organizations (RFMOs). The dataset contains institutional, economic and ecological variables relevant for non-state actor participation in RFMOs and for RFMO effectiveness. To code non-state actor participation and institutional factors, we quantify information from publicly available RFMO reports as well as data from the Policy IV dataset. We pair these data with existing datasets on ecological and economic factors from the RAM Legacy and the Sea Around Us databases. This article describes the data collection process and the coded variables in detail.
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| 5. |
- Dellmuth, Lisa M., et al.
(author)
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Empowering NGOs? Long-term effects of ecological and institutional change on regional fisheries management organizations
- 2020
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In: Global Environmental Change. - : Elsevier BV. - 0959-3780 .- 1872-9495. ; 65
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Journal article (peer-reviewed)abstract
- The participation of environmental non-governmental organizations (ENGOs) in regional fisheries management organizations has inspired optimism among many observers and researchers about increasing the effectiveness of these regional organizations in managing highly migratory and straddling fish stocks sustainably. Others claim that the attendance of ENGOs in meetings of regional fisheries management organizations as accredited observers or as part of member state or cooperating non-member state delegations, could make decision-making complex, long, and inefficient. More generally, NGO participation has attracted broad scholarly interest in the study of interest groups and transnational advocacy in political science. Yet, we know little about the determinants of ENGO participation in meetings of regional fisheries management organizations in the first place. To fill this gap, this article develops a theoretical framework conceptualizing ENGO participation and developing expectations about how ecological and institutional change shapes ENGO participation. The framework deals with structural determinants of ENGO participation, as existing literature primarily has been preoccupied with the study of actor-specific explanations of specific NGOs' impact in specific political processes. By contrast, we examine how ecological change - such as target fish stock health and biomass status - and institutional change - such as financial resources, membership composition of regional fisheries management organizations and participation by other non-state actors, such as experts and fishing industry representatives - shape ENGO participation. We empirically explore this framework in the context of seven regional fisheries management organizations. A dataset comprising yearly fish stock-level data on participation, institutional, and ecological factors, for 1980-2014, was compiled for our quantitative inquiry into the determinants of ENGO participation. We find robust evidence that institutional change shapes ENGO participation, but not ecological factors related to target fish stock health. We discuss our findings against the backdrop of ongoing debates about NGOs in political science, and spell out broader implications for future research on NGOs in regional fisheries management organizations.
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| 6. |
- Marklund, Petter, et al.
(author)
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Sustained and transient neural modulations in prefrontal cortex related to declarative long-term memory, working memory, and attention.
- 2007
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In: Cortex. - 0010-9452. ; 43:1, s. 22-37
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Journal article (peer-reviewed)abstract
- Common activations in prefrontal cortex (PFC) during episodic and semantic long-term memory (LTM) tasks have been hypothesized to reflect functional overlap in terms of working memory (WM) and cognitive control. To evaluate a WM account of LTM-general activations, the present study took into consideration that cognitive task performance depends on the dynamic operation of multiple component processes, some of which are stimulus-synchronous and transient in nature; and some that are engaged throughout a task in a sustained fashion. PFC and WM may be implicated in both of these temporally independent components. To elucidate these possibilities we employed mixed blocked/event-related functional magnetic resonance imaging (fMRI) procedures to assess the extent to which sustained or transient activation patterns overlapped across tasks indexing episodic and semantic LTM, attention (ATT), and WM. Within PFC, ventrolateral and medial areas exhibited sustained activity across all tasks, whereas more anterior regions including right frontopolar cortex were commonly engaged in sustained processing during the three memory tasks. These findings do not support a WM account of sustained frontal responses during LTM tasks, but instead suggest that the pattern that was common to all tasks reflects general attentional set/vigilance, and that the shared WM-LTM pattern mediates control processes related to upholding task set. Transient responses during the three memory tasks were assessed relative to ATT to isolate item-specific mnemonic processes and were found to be largely distinct from sustained effects. Task-specific effects were observed for each memory task. In addition, a common item response for all memory tasks involved left dorsolateral PFC (DLPFC). The latter response might be seen as reflecting WM processes during LTM retrieval. Thus, our findings suggest that a WM account of shared PFC recruitment in LTM tasks holds for common transient item-related responses rather than sustained state-related responses that are better seen as reflecting more general attentional/control processes.
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| 7. |
- Strand, Susanne J. M., Docent, 1972-, et al.
(author)
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Repeated and Systematic Intimate Partner Violence in Rural Areas in Sweden
- 2021
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In: International Criminology. - : Springer. - 2662-9968 .- 2662-9976. ; 1:3, s. 220-233
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Journal article (peer-reviewed)abstract
- Violence against women lacks geographical boundaries, although research demonstrates higher rates of such violence in rural areas compared to urban areas. The repeated and systematic intimate partner violence (IPV) is especially problematic in isolated areas. This study aims to investigate how repeated and systematic IPV, was handled by the criminal justice system in rural areas in Sweden and how risk and victim vulnerability factors were related to recidivism in this longitudinal prospective study. The sample consisted of alleged perpetrators of repeated and systematic IPV who had been either reported, charged, or convicted of repeated and systematic IPV defined according to the Swedish Law Gross Violation of a Woman’s Integrity targeting such violence, in two rural Swedish police districts during 2011–2014 (N = 258). Results demonstrated that 30% of IPV perpetrators were charged with the Gross violation offense and 5% were charged for other IPV-related offenses. The conviction for the Gross violation offense was 11% and 24% for other IPV-related offenses. 56% were not charged or convicted of any IPV-related offenses. Perpetrators convicted of the Gross Violation offense were more likely to receive longer prison sentences than perpetrators convicted of other IPV-related offenses. Victim cooperation in the police investigation increased the likelihood for prosecution with 7.3 times and for a conviction with 6.1 times. In terms of recidivism 24% engaged in IPV towards the same victim and another 27% recidivated into general criminality. Recidivists had higher summary risk ratings and more individual risk factors than non-recidivists, such as general criminality, employment problems and mental health problems, and victim vulnerability factors including personal problems. To reduce re-victimization, risk and vulnerability factors and supporting victims to cooperate in the police investigation should be considered when forming risk management strategies to protect victims of repeated and systematic IPV in such rural areas.
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