| 1. |
- Arnott, Shelley E., et al.
(författare)
-
Widespread variation in salt tolerance within freshwater zooplankton species reduces the predictability of community-level salt tolerance
- 2023
-
Ingår i: Limnology and Oceanography Letters. - : John Wiley & Sons. - 2378-2242. ; 8:1, s. 8-18
-
Tidskriftsartikel (refereegranskat)abstract
- The salinization of freshwaters is a global threat to aquatic biodiversity. We quantified variation in chloride (Cl-) tolerance of 19 freshwater zooplankton species in four countries to answer three questions: (1) How much variation in Cl- tolerance is present among populations? (2) What factors predict intraspecific variation in Cl- tolerance? (3) Must we account for intraspecific variation to accurately predict community Cl- tolerance? We conducted field mesocosm experiments at 16 sites and compiled acute LC(50)s from published laboratory studies. We found high variation in LC(50)s for Cl- tolerance in multiple species, which, in the experiment, was only explained by zooplankton community composition. Variation in species-LC50 was high enough that at 45% of lakes, community response was not predictable based on species tolerances measured at other sites. This suggests that water quality guidelines should be based on multiple populations and communities to account for large intraspecific variation in Cl- tolerance.
|
|
| 2. |
- Baraldi, Enrico, 1970-, et al.
(författare)
-
Start-ups and networks : Interactive perspectives and a research agenda
- 2019
-
Ingår i: Industrial Marketing Management. - : Elsevier. - 0019-8501 .- 1873-2062. ; 80, s. 58-67
-
Tidskriftsartikel (refereegranskat)abstract
- This article introduces Industrial Marketing Management's special issue on start-ups and networks. To begin with, we stress the relevance of understanding the context wherein entrepreneurship unfolds – a context filled with social, technical and economic connections to which the start-up needs to relate. We also present and confront three network perspectives which bring different insights to the interplay between start-ups and networks: Social Network (SN) theory, the Industrial Marketing & Purchasing (IMP) view, and Actor-Network Theory (ANT). Next, we introduce the 12 papers of this special issue and place them on a continuum covering a start-up's process of network embedding and including the three periods of establishment, consolidation and stabilization. We conclude with a research agenda suggesting five avenues for further research: (1) tracing start-ups' process of network embedding, (2) mapping the connections between the different networks affecting a start-up, (3) grasping the negative effects of networks on start-ups, (4) making longitudinal case studies on start-ups and networks more comparable via common analytical tools, and (5) investigating how policy influences the complex interplay between start-ups and networks.
|
|
| 3. |
- Burström, Lena, et al.
(författare)
-
Waiting management at the emergency department - a grounded theory study
- 2013
-
Ingår i: BMC Health Services Research. - : Springer Science and Business Media LLC. - 1472-6963. ; 13
-
Tidskriftsartikel (refereegranskat)abstract
- Background: An emergency department (ED) should offer timely care for acutely ill or injured persons that require the attention of specialized nurses and physicians. This study was aimed at exploring what is actually going on at an ED. Methods: Qualitative data was collected 2009 to 2011 at one Swedish ED (ED1) with 53.000 yearly visits serving a population of 251.000. Constant comparative analysis according to classic grounded theory was applied to both focus group interviews with ED1 staff, participant observation data, and literature data. Quantitative data from ED1 and two other Swedish EDs were later analyzed and compared with the qualitative data. Results: The main driver of the ED staff in this study was to reduce non-acceptable waiting. Signs of non-acceptable waiting are physical densification, contact seeking, and the emergence of critical situations. The staff reacts with frustration, shame, and eventually resignation when they cannot reduce non-acceptable waiting. Waiting management resolves the problems and is done either by reducing actual waiting time by increasing throughput of patient flow through structure pushing and shuffling around patients, or by changing the experience of waiting by calming patients and feinting maneuvers to cover up. Conclusion: To manage non-acceptable waiting is a driving force behind much of the staff behavior at an ED. Waiting management is done either by increasing throughput of patient flow or by changing the waiting experience.
|
|
| 4. |
- Costache, Madalina Elena, et al.
(författare)
-
Higher- and lower-order personality traits and cluster subtypes in social anxiety disorder
- 2020
-
Ingår i: PLOS ONE. - : PUBLIC LIBRARY SCIENCE. - 1932-6203. ; 15:4
-
Tidskriftsartikel (refereegranskat)abstract
- Social anxiety disorder (SAD) can come in different forms, presenting problems for diagnostic classification. Here, we examined personality traits in a large sample of patients (N = 265) diagnosed with SAD in comparison to healthy controls (N = 164) by use of the Revised NEO Personality Inventory (NEO-PI-R) and Karolinska Scales of Personality (KSP). In addition, we identified subtypes of SAD based on cluster analysis of the NEO-PI-R Big Five personality dimensions. Significant group differences in personality traits between patients and controls were noted on all Big Five dimensions except agreeableness. Group differences were further noted on most lower-order facets of NEO-PI-R, and nearly all KSP variables. A logistic regression analysis showed, however, that only neuroticism and extraversion remained significant independent predictors of patient/control group when controlling for the effects of the other Big Five dimensions. Also, only neuroticism and extraversion yielded large effect sizes when SAD patients were compared to Swedish normative data for the NEO-PI-R. A two-step cluster analysis resulted in three separate clusters labelled Prototypical (33%), Introvert-Conscientious (29%), and Instable-Open (38%) SAD. Individuals in the Prototypical cluster deviated most on the Big Five dimensions and they were at the most severe end in profile analyses of social anxiety, self-rated fear during public speaking, trait anxiety, and anxiety-related KSP variables. While additional studies are needed to determine if personality subtypes in SAD differ in etiological and treatment-related factors, the present results demonstrate considerable personality heterogeneity in socially anxious individuals, further underscoring that SAD is a multidimensional disorder.
|
|
| 5. |
- Enghag, Margareta, 1952-, et al.
(författare)
-
Student evaluations of themselves as disciplinary practitioners
- 2009
-
Ingår i: Paper presented at the GIREP-EPEC (International Research Group on Physics Teaching) Conference, University of Leicester, Great Britain, 17-21 August.
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)
|
|
| 6. |
- Fontana, Enrico, et al.
(författare)
-
Nominated procurement and the indirect control of nominated sub-suppliers: Evidence from the Sri Lankan apparel supply chain
- 2021
-
Ingår i: Journal of Business Research. - : Elsevier BV. - 0148-2963 .- 1873-7978. ; 127, s. 179-192
-
Tidskriftsartikel (refereegranskat)abstract
- This article describes and discusses nominated procurement as a means through which buyers select sub-suppliers to achieve sustainability compliance upstream in emerging economies' supply chains. Hence, it critically examines the ways buyers articulate nominated procurement and the unfolding supply chain consequences. Based on in-depth interviews and fieldwork in the Sri Lankan apparel supply chain, the findings indicate that buyers accomplish sustainability compliance among their sub-suppliers while prioritizing their own business agenda. In doing so, however, buyers perpetuate “suboptimal compliance” of raw material suppliers and “sandwiching” of direct suppliers as harmful consequences on the supply chain. These consequences link theoretically with commercial, geographical, compliance and extended-compliance pressure. This article contributes to the advancement of the Sustainable Supply Chain Management literature by theorizing about nominated procurement, direct and indirect pressure, and pointing to the supply chain consequences beyond achievements in sustainability compliance.
|
|
| 7. |
- Göransson, Kerstin, et al.
(författare)
-
Local school ideologies and inclusion : the case of Swedish independent schools
- 2013
-
Ingår i: European Journal of Special Needs Education. - : Informa UK Limited. - 0885-6257 .- 1469-591X. ; 28:1, s. 49-63
-
Tidskriftsartikel (refereegranskat)abstract
- This paper reports on the development of a framework for the classification of local school ideologies in relation to inclusion that provides a tool for classifying the general educational direction as well as work with pupils in need of special support of individual schools. The framework defines different aspects of local school ideology in terms of values related to the societal level, school level and individual level of the education system. The paper also reports on a study exploring variations among Swedish independent schools, concerning local school ideology using the framework as a theoretical tool. In this qualitative analysis, eight schools were selected from results of a questionnaire to all Swedish independent schools (return rate 79.5%) for further analysis based on interviews with different categories of school personnel, parents and pupils. Five different patterns of local school ideologies were found more or less in line with values of inclusion, e.g. the holistic-inclusive and the market-oriented-exclusive. Results are discussed in relation to the multiple and sometimes competing objectives that every school has to deal with and make priorities between. Implications for pupils in need of special support in a school system rapidly undergoing marketisation are finally discussed.
|
|
| 8. |
- Hebert, Marie-Pier, et al.
(författare)
-
Lake salinization drives consistent losses of zooplankton abundance and diversity across coordinated mesocosm experiments
- 2023
-
Ingår i: Limnology and Oceanography Letters. - : John Wiley & Sons. - 2378-2242. ; 8:1, s. 19-29
-
Tidskriftsartikel (refereegranskat)abstract
- Human-induced salinization increasingly threatens inland waters; yet we know little about the multifaceted response of lake communities to salt contamination. By conducting a coordinated mesocosm experiment of lake salinization across 16 sites in North America and Europe, we quantified the response of zooplankton abundance and (taxonomic and functional) community structure to a broad gradient of environmentally relevant chloride concentrations, ranging from 4 to ca. 1400 mg Cl- L-1. We found that crustaceans were distinctly more sensitive to elevated chloride than rotifers; yet, rotifers did not show compensatory abundance increases in response to crustacean declines. For crustaceans, our among-site comparisons indicate: (1) highly consistent decreases in abundance and taxon richness with salinity; (2) widespread chloride sensitivity across major taxonomic groups (Cladocera, Cyclopoida, and Calanoida); and (3) weaker loss of functional than taxonomic diversity. Overall, our study demonstrates that aggregate properties of zooplankton communities can be adversely affected at chloride concentrations relevant to anthropogenic salinization in lakes.
|
|
| 9. |
- Hintz, William D., et al.
(författare)
-
Current water quality guidelines across North America and Europe do not protect lakes from salinization
- 2022
-
Ingår i: Proceedings of the National Academy of Sciences of the United States of America. - : National Academy of Sciences. - 0027-8424 .- 1091-6490. ; 119:9
-
Tidskriftsartikel (refereegranskat)abstract
- Human-induced salinization caused by the use of road deicing salts, agricultural practices, mining operations, and climate change is a major threat to the biodiversity and functioning of freshwater ecosystems. Yet, it is unclear if freshwater ecosystems are protected from salinization by current water quality guidelines. Leveraging an experimental network of land-based and in-lake mesocosms across North America and Europe, we tested how salinization—indicated as elevated chloride (Cl−) concentration—will affect lake food webs and if two of the lowest Cl− thresholds found globally are sufficient to protect these food webs. Our results indicated that salinization will cause substantial zooplankton mortality at the lowest Cl− thresholds established in Canada (120 mg Cl−/L) and the United States (230 mg Cl−/L) and throughout Europe where Cl− thresholds are generally higher. For instance, at 73% of our study sites, Cl− concentrations that caused a ≥50% reduction in cladoceran abundance were at or below Cl− thresholds in Canada, in the United States, and throughout Europe. Similar trends occurred for copepod and rotifer zooplankton. The loss of zooplankton triggered a cascading effect causing an increase in phytoplankton biomass at 47% of study sites. Such changes in lake food webs could alter nutrient cycling and water clarity and trigger declines in fish production. Current Cl− thresholds across North America and Europe clearly do not adequately protect lake food webs. Water quality guidelines should be developed where they do not exist, and there is an urgent need to reassess existing guidelines to protect lake ecosystems from human-induced salinization.
|
|
| 10. |
- Hållén, Nicklas, 1983-
(författare)
-
A personal quest : Travel writing as self-exploration in Eddy L. Harris’s Native Stranger: A Blackamerican’s Journey into the Heart of Africa
- 2018
-
Ingår i: Journal of Commonwealth Literature. - : Sage Publications. - 0021-9894 .- 1741-6442. ; 53:3, s. 363-378
-
Tidskriftsartikel (refereegranskat)abstract
- In Native Stranger: A Blackamerican's Journey into the Heart of Africa (1992), Eddy L. Harris explores what it means to be the person he is. What, if anything, connects him to Africa? What is the relation between the person he knows himself to be, and the person others see? Searching for answers to his questions, he finds himself caught between his attempts to remain open to new ways of seeing and understanding the world, on the one hand, and succumbing to the pressures of monolithic narratives about African otherness, race, belonging, roots and the past, on the other hand. This tension gives rise to an ambiguity and a number of contradictions which make the text fold back on itself. His literary project therefore ultimately serves to raise questions not only about his own identity and place in the world, but also about the conditions of writing about the self. Central among the contradictions that permeate the text is a doubling of epistemological perspectives, which can be described as an effect of what W. E. B. Dubois famously termed double-consciousness. While Harris is able to use the contradictions that arise from his writing to explore and represent the complexity of the questions that are foregrounded in his text, he is unable to answer them. His project is in other words a kind of failure, but as this article argues, this failure is the price that Harris pays to access the full complexity of selfhood, beyond political and social narratives about collective identity and how the present is shaped by the past.
|
|
