66 results on '"Bäckström, M."'
Search Results
2. Cross-Country Ski
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Carlsson, Peter, Ainegren, M., Tinnsten, M., Sundström, D., Esping, B., Koptioug, A., Bäckström, M., Braghin, Francesco, editor, Cheli, Federico, editor, Maldifassi, Stefano, editor, Melzi, Stefano, editor, and Sabbioni, Edoardo, editor
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- 2016
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3. Redistribution of arsenic in two lakes affected by historical mining activities, Stollberg, Sweden
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Bäckström, M, primary
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- 2016
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4. Environmental impact of alum shale mining and oil and uranium production in Kvarntorp, Sweden, based on historical archives and environmental monitoring data
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Åhlgren, K, primary and Bäckström, M, primary
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- 2021
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5. WS06.6 The supramolecular packing of the gel-forming MUC5B and MUC2 mucins and its importance for mucus secretion
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Nilsson, H.E., primary, Muyo, S. Trillo, additional, Bäckström, M., additional, Thomsson, E., additional, Ambort, D., additional, Koeck, P.J.B., additional, Thornton, D.J., additional, Hebert, H., additional, and Hansson, G.C., additional
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- 2016
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6. Team behaviour in interprofessional collaboration during trauma alerts: A critical incident study from the perspective of radiographers.
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Bäckström M, Leijon-Sundqvist K, Lundvall LL, Jonsson K, and Engström Å
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Introduction: Challenges in mutual awareness in interprofessional collaboration (IPC) along with relational and cultural barriers among professionals disrupt flow and delay decision-making in trauma care. Thus, this study explores team behaviours within IPC in trauma teams during trauma alerts from the perspective of radiographers., Methods: A qualitative approach was used with a critical incident technique (CIT) design applying interviews with radiographers within three hospitals in Sweden from May 2022 to May 2023. CIT analysis was conducted with an abductive approach, applying an IPC core competency framework., Results: The results present collaborative requirements in trauma care from radiographers' perspective narrating a distribution of team behaviours within trauma team collaboration and fundamental skills in IPC. Behaviours within interprofessional values and ethics were the most reported incidents related to valuing radiographers' contributions to IPC in acute trauma care., Conclusion: Exploring behaviour through critical incidents associated with core competencies of IPC highlights the importance of interprofessional values as a foundation for successful IPC in the trauma team. The results show deficiencies in inclusive behaviour, influenced by the hierarchical environment of IPC. Power imbalances in this setting are traced to differences in perceived value and shared understanding among team members, possibly rooted in professional identity and culture. A dedicated leader is argued, as the recognition of radiographers' scope of practice in trauma imaging, emphasising the significance of shared decision-making., Clinical Implications: The findings highlight organisational and relational coordination challenges for optimising competencies in IPC. IPC's success requires reinforcing values and ethics by empowering members' contributions and shared decision-making. This involves clarifying and recognising responsibilities, particularly for radiographers, ensuring their role in trauma imaging is respected and integrated into decision-making., (© 2024 The Author(s). Scandinavian Journal of Caring Sciences published by John Wiley & Sons Ltd on behalf of Nordic College of Caring Science.)
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- 2024
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7. Multilevel barriers to guideline implementation: a nationwide multi-professional cross-sectional study within child and adolescent psychiatry.
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Santesson AHE, Holmberg R, Bäckström M, Gustafsson P, Perrin S, and Jarbin H
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Background: Despite efforts to promote guideline use, guideline adoption is often suboptimal due to failure to identify and address relevant barriers. Barriers vary not only between guidelines but also between settings, intended users, and targeted patients. Multi-professional guidelines are often used in child and adolescent mental health services (CAMHS), making the implementation process more difficult. Despite this, there is a lack of knowledge about which barriers to consider or if barriers vary by profession. The aim of this study was to address these gaps by examining barriers to adopting a multi-professional depression guideline in the context of a nationwide implementation study., Methods: 440 CAMHS clinicians across Sweden (52%) completed the Barriers and Facilitators Assessment Instrument (BFAI) ahead of an implementation endeavour. BFAI is a widely used and validated measure of guideline implementation on four scales: Innovation, Provider, Context, and Patient. Barriers were calculated at scale and at item levels. ANOVA and chi-square tests were used to analyse differences by profession and effect sizes were calculated., Results: Overall, clinicians were optimistic about guideline uptake, particularly about guideline characteristics and their own adoption ability. Barriers were related to the patient and the context domains, as well as to individual clinician knowledge and training. Perceptions differed across professions; psychiatrists were most, and counsellors were least positive about guideline embeddedness., Conclusion: This large-scale quantitative study suggests that CAMHS clinicians have an overall favourable attitude towards guideline adoption but highlights the need for adaptations to certain patient groups. Strategies to improve guideline use should primarily address these patient issues while securing proper support to the implementation. Implementation efforts, particularly those targeting staff knowledge, training, and involvement, may benefit from being tailored to different professional needs. These findings may inform implementation projects in CAMHS and future research., (© 2024. The Author(s).)
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- 2024
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8. Chemical characterization of green liquor dregs from 16 Swedish pulp and paper mills between 2017 and 2019.
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Stahre N, Sartz L, and Bäckström M
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- Sweden, Mining, Industrial Waste, Paper
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Green liquor dregs (GLD) is an alkaline by-product from the pulp and paper industry with a pH between 10 and 14. Today most of the produced GLD in Sweden is landfilled. As a fine-grained alkaline material, it might be possible to use it for acid-generating mining waste remediation. To increase the utilization, quality characteristics and environmental performance need to be determined. In this study samples were collected 5 times from 16 mills during a period of 2.5 years, and were characterized by analyzing dry matter content, loss on ignition (LOI) 550 °C and LOI 950 °C, elemental analysis, pH, electrical conductivity, and calorific value. The results were then evaluated using multivariate statistics (PCA) as well as being compared to other studies and Swedish till. The results show that even if GLD is heterogenous (both within a mill and between different mills) trends can be seen for samples from most mills. When samples do stand out, it is predominately related to the same four mills. Most of the studied parameters showed characteristics favorable for use as a remediant; however, TOC, sulfur, and some of the elements require further study. In general, this study concludes that GLD can be a viable option for the remediation of small orphaned sulfidic mining sites and thus worthy of further studies on the interaction between GLD and acidic mining waste.Overall, GLD can be a good alternative for cost-effective remediation of smaller orphaned mining sites. It is readily available in large quantities, has the qualities needed for remediation of many orphaned acidic mining sites, and can often be locally sourced near the mining site. The use of GLD for mining site remediation is likely also a more sustainable method compared to traditional remediation methods., (© 2024. The Author(s).)
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- 2024
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9. Extravert Surgical Resident Applicants Get Higher 360-Degree Evaluations From Coworkers.
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Pedersen H, Bäckström M, and Hagelsteen K
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- Humans, Male, Female, Adult, Personality, Extraversion, Psychological, General Surgery education, Clinical Competence statistics & numerical data, Laparoscopy education, Internship and Residency statistics & numerical data
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Introduction: 360-degree evaluations are used as an assessment in order to identify strengths and weaknesses of, or as a continuous evaluation for, residents. The aim of this study was to investigate the relationship between personality and ratings on 360-degree evaluations among surgical residency applicants. A secondary aim was to describe the personality profile of applicants for a surgical residency position., Methods: Doctors interviewed for a residency or locum position in general, urology, or pediatric surgery were included. Participants rated their personality on the Neutralized Big Five Inventory. A 360-degree assessment was conducted. Scores from two laparoscopic simulators were used as a measure of technical ability. Univariate analyses were used to assess the results. Student's t-test was used to compare personality and Pearson correlations between 360-degree assessment and personality., Results: Fifty doctors participated: data were complete for 38. Personality profiles showed higher emotional stability, agreeableness, conscientiousness and openness ratings than the norm. Correlations revealed a significant relationship between extraversion and higher scores on the 360-degree assessments. Significant univariate correlations were found between extraversion and the 360-degree assessments, and two of the correlations held up after adjustment for multiple tests. No correlations with performance when using laparoscopic simulators were found., Conclusions: Applicants for surgical residency rated significantly higher than the norm in four personality domains. Extraversion correlated with overall higher scores in 360-degree assessments by coworkers. Higher scores were not related to objective measures of technical skill, highlighting the importance of using objective measures for assessment., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
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- 2024
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10. Why Forced-Choice and Likert Items Provide the Same Information on Personality, Including Social Desirability.
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Bäckström M and Björklund F
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The forced-choice response format is often considered superior to the standard Likert-type format for controlling social desirability in personality inventories. We performed simulations and found that the trait information based on the two formats converges when the number of items is high and forced-choice items are mixed with regard to positively and negatively keyed items. Given that forced-choice items extract the same personality information as Likert-type items do, including socially desirable responding, other means are needed to counteract social desirability. We propose using evaluatively neutralized items in personality measurement, as they can counteract social desirability regardless of response format., Competing Interests: The authors declared no potential conflicts of interest with respect to the research, authorship, and/or publication of this article., (© The Author(s) 2023.)
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- 2024
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11. The structure of the second CysD domain of MUC2 and role in mucin organization by transglutaminase-based cross-linking.
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Recktenwald CV, Karlsson G, Garcia-Bonete MJ, Katona G, Jensen M, Lymer R, Bäckström M, Johansson MEV, Hansson GC, and Trillo-Muyo S
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- Humans, Models, Molecular, Cysteine metabolism, Cysteine chemistry, Amino Acid Sequence, Protein Multimerization, Cross-Linking Reagents chemistry, Cross-Linking Reagents metabolism, Mucin-2 metabolism, Mucin-2 chemistry, Transglutaminases metabolism, Transglutaminases chemistry, Protein Domains
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The MUC2 mucin protects the colonic epithelium by a two-layered mucus with an inner attached bacteria-free layer and an outer layer harboring commensal bacteria. CysD domains are 100 amino-acid-long sequences containing 10 cysteines that separate highly O-glycosylated proline, threonine, serine (PTS) regions in mucins. The structure of the second CysD, CysD2, of MUC2 is now solved by nuclear magnetic resonance. CysD2 shows a stable stalk region predicted to be partly covered by adjacent O-glycans attached to neighboring PTS sequences, whereas the CysD2 tip with three flexible loops is suggested to be well exposed. It shows transient dimer interactions at acidic pH, weakened at physiological pH. This transient interaction can be stabilized in vitro and in vivo by transglutaminase 3-catalyzed isopeptide bonds, preferring a specific glutamine residue on one flexible loop. This covalent dimer is modeled suggesting that CysD domains act as connecting hubs for covalent stabilization of mucins to form a protective mucus., Competing Interests: Declaration of interests The authors declare no competing interests., (Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
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- 2024
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12. Human Antibodies against Herpes Simplex Virus 2 Glycoprotein G Do Not Neutralize but Mediate Antibody-Dependent Cellular Cytotoxicity.
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Liljeqvist JÅ, Önnheim K, Tunbäck P, Eriksson K, Görander S, Bäckström M, and Bergström T
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Herpes simplex virus 2 (HSV-2) is a sexually transmitted infection affecting 491 million individuals globally. Consequently, there is a great need for both prophylactic and therapeutic vaccines. Unfortunately, several vaccine clinical trials, primarily employing the glycoprotein D of HSV-2 (gD-2), have failed. The immune protection conferred by human anti-HSV-2 antibodies in genital infection and disease remains elusive. It is well-known that gD-2 elicits cross-reactive neutralizing antibodies, i.e., anti-gD-2 antibodies recognize gD in HSV-1 (gD-1). In contrast, anti-glycoprotein G in HSV-2 (mgG-2) antibodies are exclusively type-specific for HSV-2. In this study, truncated versions of gD-2 and mgG-2 were recombinantly produced in mammalian cells and used for the purification of anti-gD-2 and anti-mgG-2 antibodies from the serum of five HSV-2-infected subjects, creating a pool of purified antibodies. These antibody pools were utilized as standards together with purified mgG-2 and gD-2 antigens in ELISA to quantitatively estimate and compare the levels of cross-reactive anti-gD-1 and anti-gD-2 antibodies, as well as anti-mgG-2 antibodies in sera from HSV-1+2-, HSV-2-, and HSV-1-infected subjects. The median concentration of anti-mgG-2 antibodies was five times lower in HSV-1+2-infected subjects as compared with cross-reactive anti-gD-1 and anti-gD-2 antibodies, and three times lower in HSV-2 infected subjects as compared with anti-gD-2 antibodies. The pool of purified anti-gD-2 antibodies presented neutralization activity at low concentrations, while the pool of purified anti-mgG-2 antibodies did not. Instead, these anti-mgG-2 antibodies mediated antibody-dependent cellular cytotoxicity (ADCC) by human granulocytes, monocytes, and NK-cells, but displayed no complement-dependent cytotoxicity. These findings indicate that antibodies to mgG-2 in HSV-2-infected subjects are present at low concentrations but mediate the killing of infected cells via ADCC rather than by neutralizing free viral particles. We, and others, speculate that Fc-receptor mediated antibody functions such as ADCC following HSV-2 vaccination may serve as a better marker of protection correlate instead of neutralizing activity. In an mgG-2 therapeutic vaccine, our findings of low levels of anti-mgG-2 antibodies in HSV-2-infected subjects may suggest an opportunity to enhance the immune responses against mgG-2. In a prophylactic HSV-2 mgG-2 vaccine, a possible interference in cross-reactive immune responses in already infected HSV-1 subjects can be circumvented.
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- 2024
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13. Mitigating the effects of climate change in children's outdoor play environments.
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Karaba Bäckström M, Lundgreen E, and Slaug B
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- Child, Humans, Play and Playthings, Climate Change, Ecosystem
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Background: For many children, public playgrounds represent environments that are playful and important in developing good health. Without efforts to facilitate climate change adaptation of outdoor playgrounds there may be a negative impact on children's health and well-being., Aim: With a special focus on play value, to explore the reasoning and described strategies among professionals responsible for development, planning and solutions concerning outdoor playgrounds in the context of climate change., Materials and Methods: Eight semi-structured interviews were held with purposefully selected interviewees. Analysis was conducted with manifest content analysis., Results: Four themes with supporting categories; 1: a new design paradigm for outdoor play environments, 2: a need for updated regulation- and security guidelines for outdoor play environments, 3: nature-based play environments are more climate change resilient, and 4: maintenance and construction of nature-based outdoor play environments. The findings showed an overall awareness and a will to use innovative and nature-based strategies and planning to deal with climate change implications for outdoor play environments., Conclusions and Significance: The findings suggest that the strategies employed lean towards implementation of increased ecosystem services and natural elements. Ensuring strengthened resilience against hazardous climate change effects may positively facilitate diverse play activities with high play value.
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- 2024
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14. Occupational therapy gender imbalance; revisiting a lingering issue.
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Karaba Bäckström M, Luiz Moura de Castro A, Eakman AM, Ikiugu MN, Gribble N, Asaba E, Kottorp A, Falkmer O, Eklund M, Ness NE, Balogh S, Hynes P, and Falkmer T
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- Humans, Male, Female, Occupational Therapists, Occupational Therapy
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Background: Recently, it has been suggested that gender disparity in Occupational Therapy has to do with segregated gendered job norms that position female dominated professions as a 'step down' for many males. Interestingly, this suggestion was not underpinned by experiences of males in the profession., Aims and Methods: Thirteen male Occupational Therapists with a variety of backgrounds were invited to this Round Table research, focussing on the broader issue of the existing gender imbalance in Occupational Therapy., Results: Two themes emerged: ' The core values of the profession' , and ' Broadening the scope of the profession'; none of them suggesting that male/female imbalance was necessarily the most pressing issue., Conclusions: A gender-unrelated approach to everyday problem-solving was put forward to achieve increased diversity in Occupational Therapists' backgrounds, better reflecting the people they serve. By broadening the scope and the way the profession is presented, and encouraging innovative and more entrepreneurially driven approaches, diversity in the workforce could be further facilitated. These findings are discussed within the context of 'The mutual constitution of cultures and selves' model., Significance: Diversity in the Occupational therapy workforce could be further facilitated with a shift in focus away from the male/female perspective to an intersectional approach.
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- 2023
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15. Gender and maladaptive personality correlates in problem gambling and over-indebtedness: Novel findings from a cross-sectional study in Sweden.
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Komzia N, Bäckström M, and Håkansson A
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Although most individuals consider gambling to be an innocent and fun activity, when it develops into problem gambling, it can have detrimental outcomes to one's life, such as over-indebtedness. This cross-sectional study explores the role of maladaptive personality traits and gender in both problem gambling and over-indebtedness, in an online sample of 1479 adult gamblers (65% males) in Sweden. Participants were administered the Problem Gambling Severity Index (PGSI), the Personality Inventory for DSM-5-Brief Form (PID-5-BF), and questions addressing subjective over-indebtedness and other risk factors. Quasi-Poisson loglinear models and logistic regression analyses demonstrated that Disinhibition ( OR = 1.38, 95% CI [1.24, 1.53]), and Antagonism ( OR = 1.23, 95% CI [1.14, 1.34]) showed the strongest associations to problem gambling, and that only Disinhibition ( OR = 1.72, 95% CI [1.22, 1.43]) and Antagonism ( OR = 2.00, 95% CI [1.52, 2.66]) were significantly related to over-indebtedness. The prevalence of problem gambling and over-indebtedness was more common among women, and gender moderated the univariate relationships of Negative Affectivity, Disinhibition and Psychoticism to problem gambling. These findings call for future research addressing maladaptive personality traits, problem gambling and over-indebtedness, and highlight the need for tailored interventions and prevention strategies, particularly for women who may be at higher risk., Competing Interests: The authors report no conflicts of interest related to the present research project. Dr. Anders Håkansson has a position as a researcher at Lund University which is sponsored by the state-owned gambling operator of Sweden, and he also has research funding from the research councils of the state-owned gambling operator, Svenska Spel AB, and the state-owned alcohol monopoly. None of these organizations had any role in - and no influence on - the present work., (© 2023 The Authors.)
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- 2023
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16. Worker role perceptions and work participation among people with mental health issues taking part in interventions focusing on everyday life.
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Eklund M and Bäckström M
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- Humans, Surveys and Questionnaires, Mental Health, Self Concept
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Background: Knowing whether interventions addressing everyday life as a whole can affect work readiness for people with severe mental health issues would be important for how to develop support., Objective: To compare two groups of people with mental health problems, receiving either of two types of 16-week activity-based interventions, Balancing Everyday Life (BEL) or Care as Usual (CAU), regarding work readiness in terms of perceived worker role and satisfaction with recent work experience. Changes from baseline (T1) to completed intervention (T2) and a six-month follow-up (T3) and variables of potential importance to changes were also explored., Methods: This cluster RCT recruited participants for BEL (n = 133) and CAU (n = 93) from specialized and community-based psychiatry. Questionnaires addressing work readiness and potentially influencing variables (sociodemographic, clinical, type of intervention, work experience, non-work activity factors, social interaction and self-esteem) were used. Mixed model regression analyses were employed., Results: Positive changes occurred for both groups in one worker role aspect (resources for a future worker role) and in satisfaction with recent work participation. Satisfaction with non-work everyday activities, having valued activities, and self-esteem were important for change in the work readiness variables, whereas intervention type, age, sex or general activity level were not., Conclusion: Both interventions yielded equally positive work readiness outcomes. Support that emphasizes engagement in satisfying and valued everyday activities and boosts self-esteem would be a potential way to help people with mental health issues develop work readiness in terms of the worker role and satisfaction with work participation.
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- 2023
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17. Workplace incivility as a risk factor for workplace bullying and psychological well-being: a longitudinal study of targets and bystanders in a sample of swedish engineers.
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Holm K, Torkelson E, and Bäckström M
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- Humans, Longitudinal Studies, Psychological Well-Being, Surveys and Questionnaires, Risk Factors, Workplace psychology, Bullying psychology
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Background: The aim of the present study is to explore whether (experienced and witnessed) workplace incivility is a risk factor for (experienced and witnessed) workplace bullying. An additional aim is to explore whether experienced workplace incivility is associated with psychological well-being above and beyond the influence of (experienced and witnessed) workplace bullying on well-being., Methods: A survey was distributed via e-mail to a panel of Swedish engineers. The survey was administered at three time points over one year. In total, N = 1005 engineers responded to the survey. Of these, N = 341 responded to more than one survey, providing longitudinal data. N = 111 responded to all three surveys., Results: The results showed that the likelihood of being targeted by workplace bullying was higher for those who had previously experienced incivility, even when taking previous bullying exposure into account. There was also partial support for a higher likelihood of witnessing bullying at a later time point for those that had previously witnessed incivility. Additionally, the results showed that experienced workplace incivility was negatively related to psychological well-being over time, even when controlling for previous levels of experienced and witnessed workplace bullying and well-being. However, this result was only found over one of the two time lags., Conclusion: The findings of the present study suggests that workplace incivility can be a risk factor for future bullying. In addition, the findings suggest that experienced workplace incivility exerts a unique negative effect on psychological well-being, even when accounting for exposure to workplace bullying., (© 2022. The Author(s).)
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- 2022
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18. Visuospatial ability is associated to 2D laparoscopic simulator performance amongst surgical residents.
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Pedersen H, Ståhl D, Ekelund M, Anderberg M, Bäckström M, Bergenfelz A, and Hagelsteen K
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Background: The technical skills of a surgeon influence surgical outcome. Testing technical aptitude at point of recruitment of surgical residents is only conducted in a few countries. This study investigated the impact of visuospatial ability (VSA), background factors, and manual dexterity on performance in two different laparoscopic surgical simulators amongst applicants and 1st year surgical residents., Method: Applicants from general surgery, pediatric surgery, and urology were included from seven hospitals in Sweden between 2017 and 2021. Some 73 applicants were invited and 50 completed. Participants filled out a background form, and were tested for manual dexterity, and visuospatial ability. Two laparoscopic simulators were used, one 2D video box trainer and one 3D Virtual Reality Simulator., Results: A significant association was found between the visuospatial ability test and 2D video box laparoscopic performance (95 % CI: 1.028-1.2, p-value <0.01). For every point on the visuospatial test the odds of accomplishing the task increased by 11 %. No association was found between VSA and performance in a laparoscopic VR simulator using 3D vision. No other background factors were associated with performance in the two laparoscopic simulators., Conclusion: Visuospatial ability in applicants to surgical residency positions is associated to performance in a 2D video box trainer. Knowledge of a resident's visuospatial ability can be used to tailor individualized laparoscopic training programs, and in the future might function as a selection tool concerning laparoscopic ability., Key Message: Visuospatial ability differs greatly amongst applicants for surgical residency and is associated to laparoscopic simulator performance. Testing applicants' visuospatial ability could possibly be used to tailor individualized laparoscopic training programs or in the future as a selection tool concerning laparoscopic ability., Competing Interests: None., (© 2022 The Authors.)
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- 2022
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19. Sialic Acid and Fucose Residues on the SARS-CoV-2 Receptor-Binding Domain Modulate IgG Antibody Reactivity.
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Samuelsson E, Mirgorodskaya E, Nyström K, Bäckström M, Liljeqvist JÅ, and Nordén R
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- Animals, Antibodies, Viral, CHO Cells, Cricetinae, Cricetulus, Fucose, Humans, Immunoglobulin G, N-Acetylneuraminic Acid, Spike Glycoprotein, Coronavirus, COVID-19, SARS-CoV-2
- Abstract
The receptor-binding domain (RBD) of the SARS-CoV-2 spike protein is a conserved domain and a target for neutralizing antibodies. We defined the carbohydrate content of the recombinant RBD produced in different mammalian cells. We found a higher degree of complex-type N-linked glycans, with less sialylation and more fucosylation, when the RBD was produced in human embryonic kidney cells compared to the same protein produced in Chinese hamster ovary cells. The carbohydrates on the RBD proteins were enzymatically modulated, and the effect on antibody reactivity was evaluated with serum samples from SARS-CoV-2 positive patients. Removal of all carbohydrates diminished antibody reactivity, while removal of only sialic acids or terminal fucoses improved the reactivity. The RBD produced in Lec3.2.8.1-cells, which generate carbohydrate structures devoid of sialic acids and with reduced fucose content, exhibited enhanced antibody reactivity, verifying the importance of these specific monosaccharides. The results can be of importance for the design of future vaccine candidates, indicating that it is possible to enhance the immunogenicity of recombinant viral proteins.
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- 2022
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20. Serum IgG levels to Epstein-Barr and measles viruses in patients with multiple sclerosis during natalizumab and interferon beta treatment.
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Persson Berg L, Eriksson M, Longhi S, Kockum I, Warnke C, Thomsson E, Bäckström M, Olsson T, Fogdell-Hahn A, and Bergström T
- Abstract
Background: Patients with multiple sclerosis (MS) demonstrate higher seroprevalence of Epstein-Barr virus (EBV) and increased anti-EBV IgG levels in serum compared with healthy controls. Intrathecal antibody production to measles virus (MeV) is a common finding in patients with MS., Objective: To measure serum IgG reactivity to EBV glycoprotein 350 (gp350) and MeV nucleocapsid protein (N
CORE ) in patients with MS and healthy controls and to determine if reactivity changed in patients during interferon beta (IFNβ) and/or natalizumab (NAT) treatment. A secondary aim was to determine the seroprevalence of EBV in patients and controls., Methods: Patients with MS (n=728) were included from the Swedish pharmacovigilance study for NAT. Paired serum samples from 714 patients drawn before and during NAT treatment and paired samples from 170 patients during prior IFNβ treatment were analysed. In total, 156 patients were included in both groups. Samples from 144 matched blood donors served as controls. Indirect ELISA was applied using recombinant EBVgp350 and MeV NCORE as antigens. EBVgp350 IgG seronegative samples were also analysed using EBV nuclear antigen 1 and viral capsid antigen (VCA)., Results: Patients with MS showed higher serum levels of anti-EBVgp350 and anti-MeV NCORE IgG compared with controls. During NAT treatment, the levels of anti-EBVgp350 and anti-MeV NCORE IgG declined, compared with the relatively stable levels noted during prior IFNβ treatment. Ten patients failed to demonstrate anti-EBVgp350 IgG but did show detectable anti-VCA IgG, indicating EBV seropositivity. In contrast, 10/144 controls were EBV seronegative., Conclusions: Treatment with NAT, which is considered a selective immunosuppressive agent with a compartmentalised effect on the central nervous system, appeared to be associated with a moderate decrease in circulating IgG levels to EBVgp350 and MeV NCORE . All patients with MS were EBV IgG seropositive, supporting the potential role of EBV in the pathogenesis of MS., Competing Interests: Competing interests: CW has received institutional support from Novartis, Alexion, Sanofi-Genzyme, Biogen and Roche, though not in relation to the current study. TO has received honoraria for lectures/advisory boards, and unrestricted MS research grants from Biogen, Novartis, Merck and Sanofi., (© Author(s) (or their employer(s)) 2022. Re-use permitted under CC BY. Published by BMJ.)- Published
- 2022
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21. Sorption of Perfluorooctane sulfonate (PFOS) including its isomers on hydrargillite as a function of pH, humic substances and Na 2 SO 4 .
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Uwayezu JN, Yeung LWY, and Bäckström M
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- Adsorption, Humic Substances analysis, Hydrogen-Ion Concentration, Alkanesulfonic Acids, Fluorocarbons
- Abstract
Perfluorooctane sulfonate (PFOS) is a persistent organic pollutant (POP) and emergent contaminant that are widespread in the environment. Understanding the mechanisms controlling the distribution of PFOS and its isomers between hydrargillite and the water phase is important in order to study their redistribution and mobility in the environment. This study investigated the effects of pH, humic acid, fulvic acid and Na
2 SO4 on sorption of PFOS isomers to hydrargillite. A mixture of PFOS isomers was spiked into water and hydrargillite was added to the system and shaken for one day; the system was tested with different aqueous composition. Concentrations of PFOS isomers in the aqueous phase were quantified using an ultra-performance liquid chromatograph coupled to a triple quadrupole mass spectrometer. Our results showed that the distribution coefficients of PFOS isomers were found to be 0.76, 0.71, 0.93 and 0.90 at pH 6.5, for 3-/4-/5- PFOS, 6-/2-PFOS, L-PFOS and total PFOS respectively. The distribution coefficients increased at lower pH and decreased at alkaline conditions. The presence of humic substances (HS) increased the sorption slightly at the environmental pH of 6.5, although a competition effect was observed during acidic conditions. A tendency of PFOS distribution to hydrargillite in the presence of Na2 SO4 was like its behavior in the presence of HS although the mechanisms behind the sorption were interpreted differently. This study revealed that L-PFOS was readily sorbed when no other chemicals were added or in 20 mg/L FA or 100 mg/L Na2 SO4 . We suggest that an increase in PFOS sorption in the presence of HS may be due to hydrophobic mechanisms while Na2 SO4 contributed to increased sorption through ionic strength effects., (Copyright © 2021. Published by Elsevier B.V.)- Published
- 2022
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22. A truncated glycoprotein G vaccine formulated with Advax-CpG adjuvant provides protection of mice against genital herpes simplex virus 2 infection.
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Görander S, Honda-Okubo Y, Bäckström M, Baldwin J, Bergström T, Petrovsky N, and Liljeqvist JÅ
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- Animals, Female, Herpesvirus 2, Human, Inulin analogs & derivatives, Mice, Viral Envelope Proteins, Herpes Genitalis prevention & control, Vaccines
- Abstract
Herpes simplex virus type 2 (HSV-2) is a common sexually transmitted disease that affects approximately 500 million individuals globally. There is currently no approved vaccine to prevent HSV-2 infection. EXCT4 is a truncated form of the mature glycoprotein G-2 (mgG-2) that unlike full mature form is secreted by expressing cells enabling it to be rapidly scaled up for production. The current study examined whether EXCT4 immunity in mice could be further enhanced through use of adjuvants. EXCT4 formulated with Advax-CpG adjuvant induced a strong Th1-type immune response characterized by interferon gamma (IFN-γ) and protected animals against a lethal genital challenge with HSV-2. This response was associated with reduced viral load in vaginal washes, spinal cord, and dorsal root ganglia. Together the results provide proof of concept that EXCT4 formulated with Advax-CpG adjuvant is a promising HSV-2 vaccine candidate warranting further investigation., Competing Interests: Declaration of Competing Interest SG, TB and JL develop a vaccine against HSV-2 infection using EXCT4 as antigen within the company Simplexia AB. YHO, SP, JB, and NP are affiliated with Vaxine Pty Ltd which holds the rights to Advax adjuvants., (Copyright © 2021 Elsevier Ltd. All rights reserved.)
- Published
- 2021
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23. The IgGFc-binding protein FCGBP is secreted with all GDPH sequences cleaved but maintained by interfragment disulfide bonds.
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Ehrencrona E, van der Post S, Gallego P, Recktenwald CV, Rodriguez-Pineiro AM, Garcia-Bonete MJ, Trillo-Muyo S, Bäckström M, Hansson GC, and Johansson MEV
- Subjects
- Animals, CHO Cells, Cell Adhesion Molecules chemistry, Cell Adhesion Molecules genetics, Cricetinae, Cricetulus, Disulfides chemistry, Humans, Mice, Mice, Inbred C57BL, Mucin-2 metabolism, Protein Domains, von Willebrand Factor chemistry, Cell Adhesion Molecules metabolism, Intestinal Mucosa metabolism, Proteolysis
- Abstract
Mucus forms an important protective barrier that minimizes bacterial contact with the colonic epithelium. Intestinal mucus is organized in a complex network with several specific proteins, including the mucin-2 (MUC2) and the abundant IgGFc-binding protein, FCGBP. FCGBP is expressed in all intestinal goblet cells and is secreted into the mucus. It is comprised of repeated von Willebrand D (vWD) domain assemblies, most of which have a GDPH amino acid sequence that can be autocatalytically cleaved, as previously observed in the mucins MUC2 and mucin-5AC. However, the functions of FCGBP in the mucus are not understood. We show that all vWD domains of FCGBP with a GDPH sequence are cleaved and that these cleavages occur early during biosynthesis in the endoplasmic reticulum. All cleaved fragments, however, remain connected via a disulfide bond within each vWD domain. This cleavage generates a C-terminal-reactive Asp-anhydride that could react with other molecules, such as MUC2, but this was not observed. Quantitative analyses by MS showed that FCGBP was mainly soluble in chaotropic solutions, whereas MUC2 was insoluble, and most of the secreted FCGBP was not covalently bound to MUC2. Although FCGBP has been suggested to bind immunoglobulin G, we were unable to reproduce this binding in vitro using purified proteins. In conclusion, while the function of FCGBP is still unknown, our results suggest that it does not contribute to covalent crosslinking in the mucus, nor incorporate immunoglobulin G into mucus, instead the single disulfide bond linking each fragment could mediate controlled dissociation., Competing Interests: Conflict of interest The authors declare that they have no conflicts of interest with the contents of this article., (Copyright © 2021 The Authors. Published by Elsevier Inc. All rights reserved.)
- Published
- 2021
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24. Groundwater chemistry affected by trace elements (As, Mo, Ni, U and V) from a burning alum shale waste deposit, Kvarntorp, Sweden.
- Author
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Åhlgren K, Sjöberg V, Allard B, and Bäckström M
- Subjects
- Alum Compounds, Environmental Monitoring, Sweden, Groundwater, Trace Elements
- Abstract
Worldwide, black shales and shale waste are known to be a potential source of metals to the environment. This project demonstrates ongoing weathering and evaluates leaching processes at a 100-m-high shale waste deposit closed in the 1960s. Some deep parts of the deposit are still burning with temperatures exceeding 500 °C. To demonstrate ongoing weathering and leaching, analyses of groundwater and solid samples of shale and shale waste have been undertaken. Largest impact on groundwater quality was observed downstream the deposit, where elevated temperatures also indicate a direct impact from the burning waste deposit. Groundwater quality is largely controlled by pH and redox conditions (e.g., for arsenic, nickel, molybdenum, uranium and vanadium), and the mixture of different waste materials, including pyrite (acidic leachates) and carbonates (neutralizing and buffering pH). Analyses of shale waste from the deposit confirm the expected pyrite weathering with high concentrations of iron, nickel and uranium in the leachates. No general time trends could be distinguished for the groundwater quality from the monitoring in 2004-2019. This study has shown that black shale waste deposits can have a complex long-term impact on the surrounding environment.
- Published
- 2021
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25. Microstructural and Mechanical Evaluation of a Cr-Mo-V Cold-Work Tool Steel Produced via Electron Beam Melting (EBM).
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Botero CA, Şelte A, Ramsperger M, Maistro G, Koptyug A, Bäckström M, Sjöström W, and Rännar LE
- Abstract
In this work, a highly alloyed cold work tool steel, Uddeholm Vanadis 4 Extra, was manufactured via the electron beam melting (EBM) technique. The corresponding material microstructure and carbide precipitation behavior as well as the microstructural changes after heat treatment were characterized, and key mechanical properties were investigated. In the as-built condition, the microstructure consists of a discontinuous network of very fine primary Mo- and V-rich carbides dispersed in an auto-tempered martensite matrix together with ≈15% of retained austenite. Adjusted heat treatment procedures allowed optimizing the microstructure by the elimination of Mo-rich carbides and the precipitation of fine and different sized V-rich carbides, along with a decrease in the retained austenite content below 2%. Hardness response, compressive strength, and abrasive wear properties of the EBM-manufactured material are similar or superior to its as-HIP forged counterparts manufactured using traditional powder metallurgy route. In the material as built by EBM, an impact toughness of 16-17 J was achieved. Hot isostatic pressing (HIP) was applied in order to further increase ductility and to investigate its impact upon the microstructure and properties of the material. After HIPing with optimized protocols, the ductility increased over 20 J.
- Published
- 2021
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26. Five-Factor Personality Inventories Have a Competence-Related Higher-Order Factor Due to Item Phrasing.
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Bäckström M, Björklund F, Persson R, and Costa A
- Abstract
This research examines whether the items of some of the most well-established five-factor inventories refer to competence. Results reveal that both experts and laymen can distinguish between items that refer to how competently a behavior is performed and items that do not (Study 1). Responses to items that refer to competence create a higher-order factor in the personality inventories (Study 2), and the variability in responses to competence-related items in personality self-ratings is best modeled as a general factor rather than as also tied to the specific Big Five factors (Studies 3 and 4). We suggest that a focused debate on what personality items should refer to is likely to have considerable positive consequences for both theory and measurement of personality., Competing Interests: The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest., (Copyright © 2020 Bäckström, Björklund, Persson and Costa.)
- Published
- 2020
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27. Exploring mediators of the recovery process over time among mental health service users, using a mixed model regression analysis based on cluster RCT data.
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Argentzell E, Bäckström M, Lund K, and Eklund M
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- Adult, Humans, Regression Analysis, Mental Health Services, Occupational Therapy
- Abstract
Background: Personal recovery is associated with many significant health-related factors, but studies exploring associations between activity factors and personal recovery among service users are scarce. The aims of this study were hence to; 1) investigate if various aspects of activity may mediate change in recovery while also acknowledging clinical, sociodemographic and well-being factors; 2) explore the effects of two activity-based interventions, Balancing Everyday Life (BEL) or standard occupational therapy (SOT), on personal recovery among service users., Methods: Two-hundred-and-twenty-six service users were included in a cluster RCT, 133 from BEL units and 93 from SOT units. Participants commonly had a diagnosis of mood disorder and the mean age was 40. Instruments used targeted activity, mastery and functioning. A mixed-model regression analysis was employed., Results: The model tested was whether selected variables could be used to mediate the change in recovery from the start to a six-month follow-up after intervention. Participants' personal recovery increased after treatment and increased further at the follow-up. The general level of recovery was negatively related to a diagnosis of depression/anxiety, both before and after treatment, but depressed/anxious service users still increased their recovery. There were no significant relations between recovery and sex or age. The interactions between change in recovery and changes in depression/anxiety, satisfaction with activities, sex, and age were all non-significant. All possible treatment mediators included were related to change in recovery, the strongest being occupational engagement and mastery, followed by activity satisfaction and symptoms. Mediation was shown by the decrease in the effect of the time factor (from intervention start to completion) when the covariates were introduced. In all cases the time variable was still significant. When testing a model with all variables simultaneously as covariates, occupational engagement and mastery were strongly significant. There was no difference between interventions regarding recovery improvement., Conclusion: The treatments were equally beneficial and were effective regardless of gender, age and diagnosis. Those who gained most from the treatment also gained in feelings of mastery and activity engagement. Activity engagement also moderated the level of recovery. To enhance recovery, interventions should facilitate meaningful activities and gaining control in life., Trial Registration: The study was registered with ClinicalTrials.gov . Reg. No. NCT02619318 . Retrospectively registered: December 2, 2015.
- Published
- 2020
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28. The Properties and Utility of Less Evaluative Personality Scales: Reduction of Social Desirability; Increase of Construct and Discriminant Validity.
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Bäckström M and Björklund F
- Abstract
Evaluative neutralization implies rephrasing items such that it is less clear to the respondent what would be a desirable response in the given population. The current research compares evaluatively neutralized scales measuring the FFM model with standard counterparts. Study 1 reveals that evaluatively neutralized scales are less influenced by social desirability. Study 2 estimates higher-order factor models for neutralized vs. standard five-factor scales. In contrast to standard inventories, there was little support for higher-order factors for neutralized scales. Study 3 demonstrates the convergent and discriminant validity for the neutralized scales, e.g., by less inflated correlations to external measures. It is argued that evaluatively neutralized inventories help researchers come to grips with social desirability in personality measurement, and are particularly useful when the factor structure is central to the research question and there is a focus on discriminant validity., (Copyright © 2020 Bäckström and Björklund.)
- Published
- 2020
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29. Validity of the Brief Child and Family Phone Interview by comparison with Longitudinal Expert All Data diagnoses in outpatients.
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Andersson M, Bäckström M, Ivarsson T, Råstam M, and Jarbin H
- Abstract
Background: The Brief Child and Family Phone Interview (BCFPI) is a standardized intake and follow-up interview used in child and adolescent mental health services (CAMHS). Although it has shown good validity compared with other measures using parent reports, it has not yet been compared with diagnoses derived from a Longitudinal Expert All Data (LEAD) procedure, which includes information from separate diagnostic interviews with parent(s) and child. The aim was to compare the BCFPI evaluation in an outpatient child and adolescent psychiatry setting with an evaluation derived from a LEAD procedure., Methods: At four Swedish outpatient CAMHS, 267 patients were interviewed at intake with the BCFPI. Within six weeks, patients and parents were interviewed separately with the 2009 version of the semi-structured Kiddie Schedule for Affective Disorders and Schizophrenia for School-age Children, Present and Lifetime Version (K-SADS-PL) and parents completed the Child Behavior Checklist (CBCL). LEAD diagnoses were subsequently determined by two senior clinicians based on 1.2 years of clinical records including the K-SADS-PL and ensuing information from further assessments, psychological tests, information from teachers and other informants as well as treatment outcome. The Diagnostic and Statistical Manual of Mental Disorders subscales from the CBCL and the subscales from the BCFPI were compared with LEAD diagnoses. These measured symptoms of attention-deficit hyperactivity disorder, oppositional defiant disorder, conduct disorder, separation anxiety disorder, generalized anxiety disorder, and major depressive disorder., Results: The criterion validity for BCFPI versus LEAD diagnoses was fair for oppositional defiant disorder (area under curve, 0.73), generalized anxiety disorder (0.73) and major depressive disorder (0.78), good for attention-deficit hyperactivity disorder (0.81) and conduct disorder (0.83), and excellent for separation anxiety disorder (0.90). The screening properties of BCFPI and CBCL were similar., Conclusion: The BCFPI is a concise and valid tool, performed along with the larger and more established CBCL, in screening for major psychiatric disorders. It is well suited as an intake interview in CAMHS.
- Published
- 2020
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30. Confirmatory factor analysis of the Evidence-Based Practice Attitude Scale (EBPAS) in a large and representative Swedish sample: is the use of the total scale and subscale scores justified?
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Santesson AHE, Bäckström M, Holmberg R, Perrin S, and Jarbin H
- Subjects
- Adolescent, Child, Evidence-Based Practice, Factor Analysis, Statistical, Humans, Psychometrics, Reproducibility of Results, Surveys and Questionnaires, Sweden, Attitude of Health Personnel, Language
- Abstract
Background: There is a call for valid and reliable instruments to evaluate implementation of evidence-based practices (EBP). The 15-item Evidence-Based Practice Attitude Scale (EBPAS) measures attitude toward EBP, incorporating four lower-order factor subscales (Appeal, Requirements, Openness, and Divergence) and a Total scale (General Attitudes). It is one of a few measures of EBP attitudes evaluated for its psychometric properties. The reliability of the Total scale has been repeatedly supported, but also the multidimensionality of the inventory. However, whether all of the items contribute to the EBPAS Total beyond their subscales has yet to be demonstrated. In addition, the Divergence subscale has been questioned because of its low correlation with the other subscales and low inter-item correlations. The EBPAS is widely used to tailor and evaluate implementation efforts, but a Swedish version has not yet been validated. This study aimed to contribute to the development and cross-validation of the EBPAS by examining the factor structure of t a Swedish-language version in a large sample of mental health professionals., Methods: The EBPAS was translated into Swedish and completed by 570 mental health professionals working in child and adolescent psychiatry settings spread across Sweden. The factor structure was examined using first-order, second-order and bifactor confirmatory factor analytic (CFA) models., Results: Results suggested adequate fit for all CFA models. The EBPAS Total was strongly supported in the Swedish version. Support for the hierarchical second-order model was also strong, while the bifactor model gave mixed support for the subscales. The Openness and Requirements subscales came out best, while there were problems with both the Appeal (e.g. not different from the General Attitudes factor) and the Divergence subscales (e.g. low reliability)., Conclusions: Overall, the psychometric properties were on par with the English version and the total score appears to be a valid measure of general attitudes towards EBP. This is the first study supporting this General Attitudes factor based on a bifactor model. Although comparatively better supported in this Swedish sample, we conclude that the use of the EBPAS subscale scores may result in misleading conclusions. Practical implications and future directions are discussed.
- Published
- 2020
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31. Recombinant Epstein-Barr virus glycoprotein 350 as a serological antigen.
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Persson Berg L, Thomsson E, Hasi G, Bäckström M, and Bergström T
- Subjects
- Amino Acid Sequence, Animals, Antibodies, Viral blood, Antigens, Viral genetics, Antigens, Viral metabolism, CHO Cells, Capsid Proteins immunology, Cricetulus, Enzyme-Linked Immunosorbent Assay, Epstein-Barr Virus Infections blood, Epstein-Barr Virus Infections diagnosis, Epstein-Barr Virus Nuclear Antigens immunology, Herpesvirus 4, Human isolation & purification, Humans, Immunoglobulin G blood, Recombinant Proteins genetics, Recombinant Proteins immunology, Recombinant Proteins metabolism, Sensitivity and Specificity, Viral Envelope Proteins genetics, Viral Envelope Proteins metabolism, Antigens, Viral immunology, Herpesvirus 4, Human immunology, Serologic Tests methods, Viral Envelope Proteins immunology
- Abstract
Epstein-Barr virus (EBV) glycoprotein 350 (gp350) is the most abundant glycoprotein expressed on the EBV envelope, the major target for neutralizing antibodies and also essential for virion attachment to B lymphocytes. Several studies have addressed EBV gp350 as a vaccine candidate, but less commonly as a potential antigen for serological assays. The aim of the current study was to develop a diagnostic tool to quantify EBV gp350-specific IgG in previously EBV-infected individuals. A construct encoding the extracellular domain of EBV gp350 (amino acid (aa) 1-860) was developed for expression in Chinese hamster ovary cells. Serum samples (n = 360) with known IgG serostatus against viral capsid antigen (VCA) and Epstein-Barr nuclear antigen 1 (EBNA1) were divided into three groups based on the differences in their serostatus: VCA + EBNA1+ (n = 120), VCA + EBNA1- (n = 120) and VCA-EBNA1- (n = 120). The samples were analyzed by indirect ELISA using recombinant EBV gp350 aa 1-860 as antigen. A clear majority, 108 of the 120 VCA + EBNA1+ samples, had detectable EBV gp350-specific IgG. Of the 120 VCA + EBNA1- samples, 79 had detectable EBV gp350-specific IgG. Only 2 of the 120 VCA-EBNA1- samples had detectable EBV gp350-specific IgG. The results reported here show that use of the EBV gp350 aa 1-860 ELISA can serve as a sensitive method for EBV-specific IgG detection in serum samples., (Copyright © 2020 The Authors. Published by Elsevier B.V. All rights reserved.)
- Published
- 2020
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32. Sorption of PFOS isomers on goethite as a function of pH, dissolved organic matter (humic and fulvic acid) and sulfate.
- Author
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Uwayezu JN, Yeung LWY, and Bäckström M
- Subjects
- Adsorption, Hydrogen-Ion Concentration, Hydrophobic and Hydrophilic Interactions, Alkanesulfonic Acids chemistry, Benzopyrans chemistry, Fluorocarbons chemistry, Groundwater chemistry, Humic Substances analysis, Iron Compounds chemistry, Minerals chemistry, Sulfates chemistry, Water Pollutants, Chemical chemistry
- Abstract
Understanding the distribution of PFOS isomers between the aqueous phase and goethite is crucial, since it is an abundant sorbent and thus may have a large influence on the mobility of PFOS. This study was conducted to understand the effects of pH, humic acid (HA), fulvic acid (FA) and sulfate on sorption of PFOS isomers. The results will increase the understanding about what parameters may control the fate and transport of PFOS in surface and ground water. The study was conducted by adding PFOS spiked water to a goethite slurry with different aqueous chemistry. Levels of total PFOS and PFOS isomers were quantified using an Ultra-Performance Liquid Chromatograph coupled to a triple quadrupole mass spectrometer. Results showed that sorption of PFOS was mainly dependent on pH; sorption decreased as pH increased. Presence of HA increased log K
d from 1.29 to 2.03, 1.76 to 1.92 and 1.51 to 1.96 at pH 5.50-7.50 for 3-/4-/4-PFOS, 6-/2-PFOS and L-PFOS, respectively. Changes in the aqueous chemistry also affected the behaviour of PFOS as the addition of Na2 SO4 enhanced the sorption of PFOS. Results showed that L-PFOS was more readily sorbed to goethite at pH < 4.35 both in the presence and in the absence of humic or fulvic acids. At pH > 4.5 the 3-/4-/5-PFOS isomer group was more associated to goethite. Besides electrostatic interactions, which controlled the sorption of PFOS, this study indicate that the presence of dissolved humic substances in the aqueous phase enhances the sorption via hydrophobic mechanisms., (Copyright © 2019 Elsevier Ltd. All rights reserved.)- Published
- 2019
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33. Feasibility of using a novel instrumented human head surrogate to measure helmet, head and brain kinematics and intracranial pressure during multidirectional impact tests.
- Author
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Petrone N, Candiotto G, Marzella E, Uriati F, Carraro G, Bäckström M, and Koptyug A
- Subjects
- Biomechanical Phenomena, Craniocerebral Trauma prevention & control, Equipment Design, Feasibility Studies, Humans, Materials Testing, Brain, Head, Head Protective Devices, Intracranial Pressure, Manikins, Sports Equipment
- Abstract
Objectives: Aim of the work is to present the feasibility of using an Instrumented Human Head Surrogate (IHHS-1) during multidirectional impacts while wearing a modern ski helmet. The IHHS-1 is intended to provide reliable and repeatable data for the experimental validation of FE models and for the experimental evaluation of modern helmets designed to enhance the degree of protection against multidirectional impacts., Design: The new IHHS-1 includes 9 triaxial MEMS accelerometers embedded in a silicone rubber brain, independently molded and presenting lobes separation and cerebellum, placed into an ABS skull filled with surrogate cerebrospinal fluid. A triaxial MEMS gyroscope is placed at the brain center of mass. Intracranial pressure can be detected by eight pressure sensors applied to the skull internal surface along a transversal plane located at the brain center of mass and two at the apex. Additional MEMS sensors positioned over the skull and the helmet allow comparison between outer and inner structure kinematics and surrogate CSF pressure behavior., Methods: The IHHS-1 was mounted through a Hybrid III neck on a force platform and impacted with a striker connected to a pendulum tower, with the impact energies reaching 24J. Impact locations were aligned with the brain center of mass and located in the back (sagittal axis), right (90° from sagittal axis), back/right (45°), and front right (135°) locations. Following dynamic data were collected: values of the linear accelerations and angular velocities of the brain, skull and helmet; intracranial pressures inside the skull., Results: Despite the relatively low intensity of impacts (HIC at skull max value 46), the skull rotational actions reached BrIC values of 0.33 and angular accelerations of 5216rad/s
2 , whereas brain angular acceleration resulted between 1,44 and 2,1 times lower with similar values of BrIC., Conclusions: The IHHS-1 is a physical head surrogate that can produce repeatable data for the interpretation of inner structures behavior during multidirectional impacts with or without helmets of different characteristics., (Copyright © 2019 Sports Medicine Australia. Published by Elsevier Ltd. All rights reserved.)- Published
- 2019
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34. Prediction of psychiatric comorbidity on premature death in a cohort of patients with substance use disorders: a 42-year follow-up.
- Author
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Fridell M, Bäckström M, Hesse M, Krantz P, Perrin S, and Nyhlén A
- Subjects
- Adolescent, Adult, Cause of Death trends, Cohort Studies, Comorbidity, Diagnosis, Dual (Psychiatry) mortality, Diagnosis, Dual (Psychiatry) trends, Drug Overdose diagnosis, Drug Overdose mortality, Drug Overdose psychology, Female, Follow-Up Studies, Humans, Male, Mental Disorders diagnosis, Mental Disorders mortality, Mental Disorders psychology, Predictive Value of Tests, Registries, Risk Factors, Substance-Related Disorders diagnosis, Sweden epidemiology, Young Adult, Mortality, Premature trends, Substance Abuse Treatment Centers trends, Substance-Related Disorders mortality, Substance-Related Disorders psychology
- Abstract
Background: We need to better understand how the use of different substances and psychiatric comorbidity influence premature death generally and cause-specific death by overdose, intoxication and somatic disorders in people with substance use disorders., Method: A cohort of 1405 patients consecutively admitted to a Swedish detoxification unit for substance use disorders in 1970-1995 was followed-up for 42 years. Substances were identified by toxicological analyses. Mortality figures were obtained from a national registry. Causes of death were diagnosed by forensic autopsy in 594 patients deceased by 2012. Predictions were calculated by competing risks analysis., Results: Forty-two per cent of the cohort died during follow-up; more men than women (46.3% vs 30.4%). The standardised mortality ratio (SMR) was calculated as the ratio of observed deaths in males and females in specific age groups in the cohort versus expected deaths in corresponding groups in the general population. SMR was 5.68 for men (CI 95%; 5.04-6.11) and 4.98 (CI 95%; 4.08-5.88) for women. The crude mortality rate (number of deaths divided by number of person observation years) was 2.28% for men and 1.87% for women. Opiates predicted increased risk of premature death while amphetamine and cannabis predicted lower risk. Comorbid psychiatric disorders were identified in 378 cases and personality disorders in 763 cases. Primary psychoses or mood/depression and anxiety disorders predicted a higher risk of premature mortality. Death by overdose was predicted by male gender, younger age at admission to substance treatment, opiate use, and comorbid depression and anxiety syndromes. Cannabis and amphetamine use predicted a lower risk of overdose. Death by intoxication was predicted by male gender, use of sedatives/hypnotics or alcohol/mixed substances, primary psychoses and depression/anxiety syndromes. Premature death by somatic disorder was predicted by male gender and alcohol/mixed abuse., Conclusion: Psychiatric comorbid disorders were important risk factors for premature drug-related death. Early identification of these factors may be life-saving in the treatment of patients with substance use disorders.
- Published
- 2019
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35. Commentary on Demetriou et al. (2018): Methodological and Theoretical Considerations.
- Author
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Bäckström M
- Abstract
The article "Mind-Personality Relations from Childhood to Early Adulthood" attempts to investigate the relation between cognitive ability (GMA) and personality, especially how these two concepts are related during childhood, and whether they may exert influence on each other during development. [...].
- Published
- 2018
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36. How a terror attack affects right-wing authoritarianism, social dominance orientation, and their relationship to torture attitudes.
- Author
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Lindén M, Björklund F, and Bäckström M
- Subjects
- Adult, Female, Humans, Male, Young Adult, Attitude, Authoritarianism, Politics, Social Dominance, Torture psychology
- Abstract
Self-reported level of right-wing authoritarianism (RWA), the two facets of social dominance orientation (SDO-Dominance and SDO-Egalitarianism) and pro-torture attitudes were measured both in the immediate aftermath (terror salience, N = 152) of the terror attacks in Paris and Brussels and when terrorism was not salient (non-salience, N = 140). Results showed that RWA and pro-torture attitudes, but not SDO-Dominance and SDO-Egalitarianism, were significantly higher immediately after. Furthermore, RWA and SDO both predicted pro-torture attitudes more strongly under terror salience. We argue that the reason why RWA is higher under terror salience is a response to external threat, and that SDO-Dominance may be more clearly related to acceptance of torture and other human-rights violations, across context. Future research on the effects of terror-related events on sociopolitical and pro-torture attitudes should focus on person-situation interactions and also attempt to discriminate between trait and state aspects of authoritarianism., (© 2018 Scandinavian Psychological Associations and John Wiley & Sons Ltd.)
- Published
- 2018
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37. Psychometric evaluation of the Swedish version of Rosenberg's self-esteem scale.
- Author
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Eklund M, Bäckström M, and Hansson L
- Subjects
- Adult, Factor Analysis, Statistical, Female, Humans, Male, Mental Disorders epidemiology, Middle Aged, Psychometrics, Quality of Life psychology, Reproducibility of Results, Social Stigma, Sweden epidemiology, Mental Disorders diagnosis, Mental Disorders psychology, Self Concept, Surveys and Questionnaires standards
- Abstract
Background: The widely used Rosenberg's self-esteem scale (RSES) has not been evaluated for psychometric properties in Sweden., Aims: This study aimed at analyzing its factor structure, internal consistency, criterion, convergent and discriminant validity, sensitivity to change, and whether a four-graded Likert-type response scale increased its reliability and validity compared to a yes/no response scale., Methods: People with mental illness participating in intervention studies to (1) promote everyday life balance (N = 223) or (2) remedy self-stigma (N = 103) were included. Both samples completed the RSES and questionnaires addressing quality of life and sociodemographic data. Sample 1 also completed instruments chosen to assess convergent and discriminant validity: self-mastery (convergent validity), level of functioning and occupational engagement (discriminant validity). Confirmatory factor analysis (CFA), structural equation modeling, and conventional inferential statistics were used., Results: Based on both samples, the Swedish RSES formed one factor and exhibited high internal consistency (>0.90). The two response scales were equivalent. Criterion validity in relation to quality of life was demonstrated. RSES could distinguish between women and men (women scoring lower) and between diagnostic groups (people with depression scoring lower). Correlations >0.5 with variables chosen to reflect convergent validity and around 0.2 with variables used to address discriminant validity further highlighted the construct validity of RSES. The instrument also showed sensitivity to change., Conclusions: The Swedish RSES exhibited a one-component factor structure and showed good psychometric properties in terms of good internal consistency, criterion, convergent and discriminant validity, and sensitivity to change. The yes/no and the four-graded Likert-type response scales worked equivalently.
- Published
- 2018
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38. How do Swedish day center attendees with psychiatric disabilities view their worker role? A structural equation modeling study.
- Author
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Eklund M, Bäckström M, and Bejerholm U
- Subjects
- Female, Humans, Male, Middle Aged, Occupational Therapy, Personal Satisfaction, Surveys and Questionnaires, Sweden, Adult Day Care Centers, Community Mental Health Services, Disabled Persons rehabilitation, Mental Disorders rehabilitation, Models, Statistical, Perception
- Abstract
Aim: To investigate how day center attendees with psychiatric disabilities perceived their worker role and the importance of current work situation and personal factors in that respect., Methods: Two-hundred attendees completed the Worker Role Self-assessment and questionnaires addressing possible predictors of the worker role: current employment situation, satisfaction with that situation, and a personal factor (encompassing self-esteem, self-mastery and engagement). Structural equation modeling was used., Results: A model indicated two worker role factors; belief in a future worker role (WR1) and current capacities and routines (WR2). WR1 was positively influenced by having a job, younger age and the personal factor. Satisfaction with current work situation (usually unemployment) was negatively associated with WR1. The personal factor was single predictor of WR2. The attendees rated WR2 more positively than WR1., Conclusions: The personal factor was crucial for both WR1 and WR2. Work-related factors were only important for WR1. The more negative rating of belief in a future worker role may be interpreted as mistrust in the services. The attendees' positive ratings of capacities indicate, however, that they had a rehabilitation potential to develop. Enhancing self-esteem, mastery and engagement may be an avenue for staff in efforts to support the attendee's worker role.
- Published
- 2018
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39. GM1 ganglioside-independent intoxication by Cholera toxin.
- Author
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Cervin J, Wands AM, Casselbrant A, Wu H, Krishnamurthy S, Cvjetkovic A, Estelius J, Dedic B, Sethi A, Wallom KL, Riise R, Bäckström M, Wallenius V, Platt FM, Lebens M, Teneberg S, Fändriks L, Kohler JJ, and Yrlid U
- Subjects
- Animals, Cells, Cultured, G(M1) Ganglioside metabolism, Glycosylation, HL-60 Cells, Humans, Jurkat Cells, Mice, Mice, Inbred C57BL, Mice, Knockout, N-Acetylgalactosaminyltransferases genetics, N-Acetylgalactosaminyltransferases metabolism, Rats, Polypeptide N-acetylgalactosaminyltransferase, Cholera Toxin toxicity, G(M1) Ganglioside physiology
- Abstract
Cholera toxin (CT) enters and intoxicates host cells after binding cell surface receptors via its B subunit (CTB). We have recently shown that in addition to the previously described binding partner ganglioside GM1, CTB binds to fucosylated proteins. Using flow cytometric analysis of primary human jejunal epithelial cells and granulocytes, we now show that CTB binding correlates with expression of the fucosylated Lewis X (LeX) glycan. This binding is competitively blocked by fucosylated oligosaccharides and fucose-binding lectins. CTB binds the LeX glycan in vitro when this moiety is linked to proteins but not to ceramides, and this binding can be blocked by mAb to LeX. Inhibition of glycosphingolipid synthesis or sialylation in GM1-deficient C6 rat glioma cells results in sensitization to CT-mediated intoxication. Finally, CT gavage produces an intact diarrheal response in knockout mice lacking GM1 even after additional reduction of glycosphingolipids. Hence our results show that CT can induce toxicity in the absence of GM1 and support a role for host glycoproteins in CT intoxication. These findings open up new avenues for therapies to block CT action and for design of detoxified enterotoxin-based adjuvants.
- Published
- 2018
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40. Tools for fairness: Increased structure in the selection process reduces discrimination.
- Author
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Wolgast S, Bäckström M, and Björklund F
- Subjects
- Adult, Female, Humans, Male, Young Adult, Employment, Social Justice
- Abstract
Employment discrimination causes problems at the labor market, and is hard to combat. Can increasing the degree of structure when selecting applicants increase fairness? Students were asked to perform a computerized selection task and were either provided with tools for systematizing information about the applicants (structured selection) or no such tools (unstructured selection). We hypothesized and found that a structured process, where employing recruitment tools rather than the recruiter's impressionistic judgment is key, improves the ability to identify job-relevant criteria and hence selecting more qualified applicants, even when in-group favoritism is tempting (e.g. when the outgroup applicants are more competent). Increasing structure helped recruiters select more competent applicants and reduced ethnic discrimination. Increasing the motivation to carefully follow the structured procedure strengthened these effects further. We conclude that structure pays off, and that motivational factors should be taken into account in order for it to have the optimal effect.
- Published
- 2017
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41. Self-control depletion impairs goal maintenance: A meta-analysis.
- Author
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Dang J, Björklund F, and Bäckström M
- Subjects
- Humans, Executive Function physiology, Goals, Psychomotor Performance physiology, Self-Control
- Abstract
Initial exertion of self-control has been suggested to impair subsequent self-regulatory performance. The specific cognitive processes that underlie this ego depletion effect have rarely been examined. Drawing on the dual-process theory of executive control (Engle & Kane, ; Kane & Engle, ), the current meta-analysis revealed that initial self-control exertion impairs participants' capacities of maintaining the task goal but its effect on capacities of resolving response competition is in need of further investigation. Our results are more consistent with recent theoretical views that consider ego depletion as a switch cost and a result arising from reduced motivation to engage in further self-control., (© 2017 Scandinavian Psychological Associations and John Wiley & Sons Ltd.)
- Published
- 2017
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- View/download PDF
42. Increasing systematicity leads to better selection decisions: Evidence from a computer paradigm for evaluating selection tools.
- Author
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Bäckström M and Björklund F
- Subjects
- Adult, Female, Helping Behavior, Humans, Male, Organizational Culture, United States, Young Adult, Decision Making physiology, Employment psychology, Personnel Selection methods, Professional Competence, Task Performance and Analysis
- Abstract
A computerized paradigm was created to allow for testing in the laboratory whether increasing systematicity helps the recruiter make better selection decisions. Participants were introduced to the job and the applicants on the computer screen and asked to select who they thought should be considered for the job and who should not. Level of systematicity, i.e. the extent to which the recruitment is methodical and uses prepared tools, was manipulated between subjects. Depending on experimental condition participants were helped by means of a tool for extracting judgment criteria (job analysis) and a tool for making judgments related to selected criteria (including calculation of a final score). The general prediction that increased systematicity leads to the selection of more qualified candidates was supported by the results, particularly when the motivation to put time and effort into the task was higher. The results support the claim from Industrial/Organizational psychologists that systematicity is a desirable characteristic in selection processes. The fact that increasing systematicity led to better selection decisions in a controlled laboratory experiment, along with process-related measures, suggests that this kind of paradigm could be useful when evaluating new tools for improving selection decisions, before they are tested in large (and costly) field studies of actual personnel selection.
- Published
- 2017
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43. Micro- to Macroroughness of Additively Manufactured Titanium Implants in Terms of Coagulation and Contact Activation.
- Author
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Klingvall Ek R, Hong J, Thor A, Bäckström M, and Rännar LE
- Subjects
- Alloys, Blood Coagulation Factors metabolism, Blood Platelets metabolism, Humans, Surface Properties, Blood Coagulation physiology, Bone-Implant Interface physiology, Dental Implants, Prosthesis Design, Titanium
- Abstract
Purpose: This study aimed to evaluate how as-built electron beam melting (EBM) surface properties affect the onset of blood coagulation. The properties of EBM-manufactured implant surfaces for placement have, until now, remained largely unexplored in literature. Implants with conventional designs and custom-made implants have been manufactured using EBM technology and later placed into the human body. Many of the conventional implants used today, such as dental implants, display modified surfaces to optimize bone ingrowth, whereas custom-made implants, by and large, have machined surfaces. However, titanium in itself demonstrates good material properties for the purpose of bone ingrowth., Materials and Methods: Specimens manufactured using EBM were selected according to their surface roughness and process parameters. EBM-produced specimens, conventional machined titanium surfaces, as well as PVC surfaces for control were evaluated using the slide chamber model., Results: A significant increase in activation was found, in all factors evaluated, between the machined samples and EBM-manufactured samples. The results show that EBM-manufactured implants with as-built surfaces augment the thrombogenic properties., Conclusion: EBM that uses Ti6Al4V powder appears to be a good manufacturing solution for load-bearing implants with bone anchorage. The as-built surfaces can be used "as is" for direct bone contact, although any surface treatment available for conventional implants can be performed on EBM-manufactured implants with a conventional design.
- Published
- 2017
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44. Judgments of warmth and competence in a computerized paradigm: Little evidence of proposed impression formation asymmetries.
- Author
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Jørgensen Ø, Bäckström M, and Björklund F
- Subjects
- Adult, Female, Humans, Male, Young Adult, Computers, Judgment, Social Behavior, Social Perception
- Abstract
Much of what we know concerning impression formation is based on experimental methods where the participant receives a list of traits or behaviors and is asked to make trait judgments or meta-cognitive judgments. The present study aimed to put some well-known effects from the impression formation literature to a test in a more dynamic computerized environment, more akin to many real world impression formation scenarios. In three studies participants were introduced to multiple target persons. They were given information about the target persons' behavior, one at a time, while making ratings of their warmth and competence, and their probability of performing related behaviors in the future. In neither of the studies the negativity effect of warmth or the positivity effect of competence were reproduced.
- Published
- 2017
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45. Consequences of cyberbullying behaviour in working life: The mediating roles of social support and social organisational climate.
- Author
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Muhonen T, Jönsson S, and Bäckström M
- Abstract
Purpose: The purpose of this paper is to explore health- and work-related outcomes of cyberbullying behaviour and the potential mediating role of social organisational climate, social support from colleagues and social support from superiors., Design/methodology/approach: Altogether 3,371 respondents participated in a questionnaire study., Findings: The results of this study indicate that social organisational climate can have a mediating role in the relationship between cyberbullying behaviour and health, well-being, work engagement and intention to quit. Contrary to earlier face-to-face bullying research, the current study showed that cyberbullying behaviour had stronger indirect than direct relationships to health, well-being, work engagement and intention to quit., Practical Implications: Communication through digital devices in work life is becoming more prevalent, which in turn increases the risk for cyberbullying behaviour. Organisations need therefore to develop occupational health and safety policies concerning the use of digital communication and social media in order to prevent cyberbullying behaviour and its negative consequences., Originality/value: Cyberbullying behaviour among working adults is a relatively unexplored phenomenon and therefore this study makes valuable contribution to the research field.
- Published
- 2017
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46. Will I Fit in and Do Well? The Importance of Social Belongingness and Self-Efficacy for Explaining Gender Differences in Interest in STEM and HEED Majors.
- Author
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Tellhed U, Bäckström M, and Björklund F
- Abstract
Throughout the world, the labor market is clearly gender segregated. More research is needed to explain women's lower interest in STEM (Science, Technology, Engineering and Mathematics) majors and particularly to explain men's lower interest in HEED (Health care, Elementary Education, and the Domestic spheres) majors. We tested self-efficacy (competence beliefs) and social belongingness expectations (fitting in socially) as mediators of gender differences in interest in STEM and HEED majors in a representative sample of 1327 Swedish high school students. Gender differences in interest in STEM majors strongly related to women's lower self-efficacy for STEM careers and, to a lesser degree, to women's lower social belongingness expectations with students in STEM majors. Social belongingness expectations also partly explained men's lower interest in HEED majors, but self-efficacy was not an important mediator of gender differences in interest in HEED. These results imply that interventions designed to lessen gender segregation in the labor market need to focus more on the social belongingness of students in the gender minority. Further, to specifically increase women's interest in STEM majors, we need to counteract gender stereotypical competence beliefs and assure women that they have what it takes to handle STEM careers.
- Published
- 2017
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47. Factor Structure and Construct Validity of the Worker Role Self-Assessment (WRS) When Used for People With Psychiatric Disabilities in Sweden.
- Author
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Eklund M and Bäckström M
- Subjects
- Adult, Female, Humans, Male, Middle Aged, Personal Satisfaction, Psychometrics, Quality of Life, Reproducibility of Results, Sweden, Health Status, Mentally Ill Persons psychology, Self-Assessment, Work Capacity Evaluation
- Abstract
A self-report instrument assessing work-related factors among people with psychiatric disabilities would be useful when trying to match possible employment or prevocational opportunities with people's desires and capacities. The aim of this study was to explore the factor structure, internal consistency, and construct and criterion validity of the Worker Role Self-Assessment (WRS) in this group as well as possible floor and ceiling effects. The participants were 283 clients from day centers for people with psychiatric disabilities and from outpatient units for people with psychosis. They completed the WRS and instruments selected to assess construct validity in terms of convergent (motivation for work and current activity level as reference variables) and discriminant validity (quality of life and self-rated health as reference variables). Two factors were identified, one tapping beliefs in a future worker role and one reflecting current capacities and routines. The internal consistency for the scale as a whole was good at 0.84. The factor reflecting a future worker role correlated as expected with the reference variables used to assess convergent and discriminant validity, whereas current capacities and routines showed a moderate association with quality of life and self-rated health, assumed to indicate discriminant validity. Criterion validity was shown in that those who had recent work experiences scored higher than the others on WRS. No floor or ceiling effects were identified. The findings indicate acceptable psychometric properties of the WRS. Further development is still warranted, however; the factor solution needs to be replicated and the construct validity should be further established., (© The Author(s) 2016.)
- Published
- 2016
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48. Factors contributing to the perpetration of workplace incivility: the importance of organizational aspects and experiencing incivility from others.
- Author
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Torkelson E, Holm K, Bäckström M, and Schad E
- Abstract
In recent years a growing amount of research has been conducted in the area of workplace incivility. Whereas many studies have focused on the victims and the consequences of incivility, little attention has been paid to the perpetrators and antecedents of workplace incivility. This study aims to identify possible antecedents of workplace incivility, by investigating organizational aspects as well as the possibility that being the target of incivility from co-workers and supervisors could induce incivility. A total of 512 employees (378 women and 133 men) in the school sector in a Swedish municipality completed an online questionnaire. Overall, the results of structural equation modelling analyses showed that organizational variables were related to the perpetration of incivility. A direct relationship was found between being uncivil and organizational change, job insecurity, low social support from co-workers and high job demands. However, the strongest relationship was found between experienced incivility from co-workers and instigated incivility. This could be reflecting a climate or culture of incivility in the organization, and carry implications for future practice in interventions against workplace incivility. The results indicate the importance of focusing on the perspective of the instigator to gain knowledge about the process of workplace incivility.
- Published
- 2016
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49. Distribution and leaching characteristics of trace elements in ashes as a function of different waste fuels and incineration technologies.
- Author
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Saqib N and Bäckström M
- Subjects
- Hot Temperature, Sweden, Biofuels analysis, Coal Ash chemistry, Incineration, Industrial Waste analysis, Solid Waste analysis, Trace Elements analysis, Wood analysis
- Abstract
Impact of waste fuels (virgin/waste wood, mixed biofuel (peat, bark, wood chips) industrial, household, mixed waste fuel) and incineration technologies on partitioning and leaching behavior of trace elements has been investigated. Study included 4 grate fired and 9 fluidized boilers. Results showed that mixed waste incineration mostly caused increased transfer of trace elements to fly ash; particularly Pb/Zn. Waste wood incineration showed higher transfer of Cr, As and Zn to fly ash as compared to virgin wood. The possible reasons could be high input of trace element in waste fuel/change in volatilization behavior due to addition of certain waste fractions. The concentration of Cd and Zn increased in fly ash with incineration temperature. Total concentration in ashes decreased in order of Zn>Cu>Pb>Cr>Sb>As>Mo. The concentration levels of trace elements were mostly higher in fluidized boilers fly ashes as compared to grate boilers (especially for biofuel incineration). It might be attributed to high combustion efficiency due to pre-treatment of waste in fluidized boilers. Leaching results indicated that water soluble forms of elements in ashes were low with few exceptions. Concentration levels in ash and ash matrix properties (association of elements on ash particles) are crucial parameters affecting leaching. Leached amounts of Pb, Zn and Cr in >50% of fly ashes exceeded regulatory limit for disposal. 87% of chlorine in fly ashes washed out with water at the liquid to solid ratio 10 indicating excessive presence of alkali metal chlorides/alkaline earths., (Copyright © 2015. Published by Elsevier B.V.)
- Published
- 2015
- Full Text
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50. Who do you think you are? - Personality in eating disordered patients.
- Author
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Levallius J, Clinton D, Bäckström M, and Norring C
- Abstract
Background: The Five-Factor Model of personality is strongly linked to common mental disorders. Yet the relationship between the lower order personality traits (facets) of the model and eating disorder (ED) features remains unclear. The aim of the study was to explore how patients with non-anorexic ED differ from controls in personality and to examine the ability of personality facets to explain psychopathology., Methods: Female patients with non-anorexic ED (N = 208) were assessed on general psychopathology, ED symptoms and personality as measured by the NEO PI-R; and were compared on personality to age-matched female controls (N = 94)., Results: Compared to controls, patients were characterised by experiencing pervasive negative affectivity and vulnerability, with little in the way of positive emotions such as joy, warmth and love. Patients were also significantly less warm and sociable, and exhibited less trust, competence, and self-discipline. Finally, they were less open to feelings, ideas and new experiences, yet more open in their values. Among patients, personality facets explained up to 25% of the variance in ED and general psychopathology., Conclusions: ED patients have distinct patterns of personality. Identifying and focusing on personality traits may aid in understanding ED, help therapists enhance the treatment alliance, address underlying problems, and improve outcome.
- Published
- 2015
- Full Text
- View/download PDF
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