| 1. |
- Andershed, Henrik, 1975-, et al.
(author)
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Initial test of the new risk-need assessment instrument for youths with or at risk for conduct problems : ESTER-assessment
- 2010
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In: Procedia - Social and Behavioral Sciences. - : Elsevier BV. - 1877-0428. ; 5, s. 488-492
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Journal article (peer-reviewed)abstract
- ESTER-assessment is a new assessment instrument for youths (0-18 years), and includes 19 empirically-derived risk and protective factors for conduct problems. This study tests the inter-rater reliability of the five-point rating scale used to assess the 19 factors in ESTER-assessment on 30 institutionalized girls and their file information. Exact agreement between raters varied from 38 to 72 percent on the 19 individual factors, a result much better than chance. Intra-class correlations of the two independent raters on the majority of the 19 individual factors were fair to good. In conclusion, the results lend support to the inter-rater reliability of ESTER-assessment.
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| 2. |
- Herlogsson, Lars, 1975-, et al.
(author)
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Polyelectrolyte-Gated Organic Complementary Circuits Operating at Low Power and Voltage
- 2011
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In: Advanced Materials. - : Wiley-Blackwell. - 0935-9648 .- 1521-4095. ; 23:40, s. 4684-
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Journal article (peer-reviewed)abstract
- In this work, polyanionic and polycationic electrolytes are used as gate insulators in p- and n-channel thin-film transistors, respectively. These material combinations are motivated by that the mobile ions in the electrolytes will be attracted to the oppositely charged gate electrodes when the transistors are operated in the accumulation mode. The electronic charges in the semiconductor channels will thus be balanced by the polyions, which are effectively immobile and cannot penetrate into the semiconductor bulk and cause electrochemical doping.
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| 3. |
- Willfors, Charlotte, et al.
(author)
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On the role of non-shared environment for executive functioning in ADHD : a twin-differences design study
- 2014
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In: International Journal of Developmental Disabilities. - Stockholm : Karolinska Institutet, Dept of Medical Epidemiology and Biostatistics. - 2047-3877. ; 60:3, s. 163-173
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Journal article (peer-reviewed)abstract
- Introduction: The study of differences between monozygotic (MZ) twin pairs with respect to ADHD may provide novel leads to disentangle the environmental contribution driving its phenotypes. Objectives: To examine non-shared environmental influences on executive function in dimensionally defined ADHD. Methods: This study included 27 MZ twin pairs (7 female) aged 11–20 years being moderately to substantially discordant for ADHD traits as assessed by the Attention Problem (AP) scale of the Child Behavior Checklist/Adult Behavior Checklist. The twins completed the Wisconsin Card Sorting Test (WCST) for cognitive flexibility and the Tower Test (TT) for foresighted planning. Two statistical approaches were used to analyze the data. First, correlations between ADHD trait intra-pair differences and WCST and TT scores were calculated. Second, the significance of those intra-pair differences on WCST and TT, using ADHD as categorical variable in clinically discordant pairs, was tested. Results: Both analysing strategies revealed a link between ADHD on one hand, and foresighted planning and inhibitory control on the other hand mediated by non-shared environmental factors. The first statistical approach yielded positive correlations between intra-pairs differences on the AP scale and intra-pair differences on two subscales of the TT: total rule violation (rs = 0·41) and rule-violation-per-item-ratio (rs = 0·38). Findings in categorically discordant pairs were consistent, showing within-pair differences on the same subtests (z-1·63, P = 0·05, one-tailed and z = −1·60, P = 0·05, one-tailed). Conclusions: Findings confirm previous research suggesting ADHD to be a quantitative extreme on a continuum with executive functions being a cognitive marker of ADHD traits. Non-shared environmental factors appear to influence planning skills and inhibitory control.
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