| 1. |
- Andersson, Henrik, et al.
(författare)
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System of nano-silver inkjet printed memory cards and PC card reader and programmer
- 2011
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Ingår i: Microelectronics Journal. - : Elsevier BV. - 0959-8324 .- 0026-2692. ; 42:1, s. 21-27
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Tidskriftsartikel (refereegranskat)abstract
- This work describes the development of inkjet printed, low-cost memory cards, and complementary pair of memory card reader and card reader/programmer for PCs. This constitutes a complete system that can be used for various applications. The memory cards are manufactured by inkjet printing nano-silver ink on photo paper substrate. The printed memory structures have an initial high resistance that can later be programmed to specific values representing data on the cards, the so called Write Once Read Many (WORM) memories. The memory card reader measures the resistance values of the memory cells and reads it back to the computer by USB connection. Using multiple resistance levels that represent different states it is possible to have a larger number of selectable combinations with fewer physical bits compared to binary coding. This somewhat counters one of the limitations of resistive memory technology that basically each cell needs one physical contact. The number of possible states is related to the resolution of the reader and the stability of the WORM memory.
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| 2. |
- Andersson, Josefina, et al.
(författare)
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Visible men and elusive women
- 2011
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Ingår i: International Journal of Historical Archaeology. - : Springer Science and Business Media LLC. - 1092-7697 .- 1573-7748. ; 15:1, s. 10-29
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Tidskriftsartikel (refereegranskat)abstract
- Early gender archaeology formulated two statements: men are visible, women are invisible, and men work in hard materials, women work in soft materials. We discuss these dichotomies in connection with nineteenth-century folklore and an excavated eighteenth-century cottage at a summer-farm. We conclude that much of the gendered order-of-work tasks broke down in pragmatic day-to-day life, especially by women crossing the gender border. However, social chaos was held at bay by ritual acts and magic objects.
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| 3. |
- Bergström, Jan, 1976-, et al.
(författare)
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An open study of the effectiveness of Internet treatment for panic disorder delivered in a psychiatric setting
- 2009
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Ingår i: Nordic Journal of Psychiatry. - : Informa UK Limited. - 0803-9488 .- 1502-4725. ; 63:1, s. 44-50
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Tidskriftsartikel (refereegranskat)abstract
- Panic Disorder with or without or without agoraphobia (PD/A) is common and can be treated effectively with SSRI medication or cognitive behavior therapy (CBT). There is however a great lack of access to CBT services, which has motivated the development of self-help approaches requiring less therapist contact. A novel treatment modality in this field, showing efficacy in several randomised trials but until now not evaluated within the context of regular psychiatric care, is Internet-based treatment. The present study evaluated the effectiveness of Internet-based CBT for 20 consecutively referred PD patients in a psychiatric setting. At post-treatment, 94% of patients no longer met DSM-IV criteria for PD (82% at 6-month follow up). The within-group effect sizes (for the main outcome PDSS; Panic Disorder Severity Scale) were Cohens d=2.5 (pre- to posttreatment) and 2.8 (pre-treatment to follow up) respectively. The proportion of responders on the PDSS was 75% at posttreatment and 70% at 6-month follow up. These results indicate that Internet-based CBT can be both an effective, feasible and potentially cost-effective alternative within regular psychiatric care for patients with PD.
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| 4. |
- Birdsong, Björn K., et al.
(författare)
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Large-scale synthesis of 2D-silica (SiOx) nanosheets using graphene oxide (GO) as a template material
- 2023
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Ingår i: Nanoscale. - : Royal Society of Chemistry (RSC). - 2040-3364 .- 2040-3372. ; 15:31, s. 13037-13048
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Tidskriftsartikel (refereegranskat)abstract
- Graphene oxide (GO) was used in this study as a template to successfully synthesize silicon oxide (SiOx) based 2D-nanomaterials, adapting the same morphological features as the GO sheets. By performing a controlled condensation reaction using low concentrations of GO (<0.5 wt%), the study shows how to obtain 2D-nanoflakes, consisting of GO-flakes coated with a silica precursor that were ca. 500 nm in lateral diameter and ca. 1.5 nm in thickness. XPS revealed that the silanes had linked covalently with the GO sheets at the expense of the oxygen groups present on the GO surface. The GO template was shown to be fully removable through thermal treatment without affecting the nanoflake morphology of the pure SiOx-material, providing a methodology for large-scale preparation of SiOx-based 2D nanosheets with nearly identical dimensions as the GO template. The formation of SiOx sheets using a GO template was investigated for two different silane precursors, (3-aminopropyl) triethoxysilane (APTES) and tetraethyl orthosilicate (TEOS), showing that both precursors were capable of accurately templating the graphene oxide template. Molecular modeling revealed that the choice of silane affected the number of layers coated on the GO sheets. Furthermore, rheological measurements showed that the relative viscosity was significantly affected by the specific surface area of the synthesized particles. The protocol used showed the ability to synthesize these types of nanoparticles using a common aqueous alcohol solvent, and yield larger amounts (∼1 g) of SiOx-sheets than what has been previously reported.
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| 5. |
- Hanstock, Helen, 1989-, et al.
(författare)
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390 Can a heat-and-moisture exchanger attenuate inflammatory responses to exercise in sub-zero conditions?
- 2021
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Ingår i: British Journal of Sports Medicine. ; 55:Suppl 1
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Tidskriftsartikel (refereegranskat)abstract
- Background Heavy endurance training in sub-zero environments increases risk of exercise-induced asthma. Heat-and-moisture exchangers (HME) can prevent exercise-induced bronchoconstriction but it is not known whether they protect against inflammatory responses to exercise in healthy individuals.Objective To investigate whether use of an HME during exercise in a sub-zero environment affects post-exercise inflammatory responses.Design Investigator-blind randomised crossover trial.Setting Environmental chamber at -15°C.Participants 23 healthy, trained participants aged 18–53 (15 male, 8 female, VO2peak 57±6 and 50±4 mL/kg/min; mean±SD).Interventions Two experimental trials with and without HME, consisting of 30-min moderate-intensity running followed by a 4-min maximal running time-trial. Plasma samples were obtained pre- and 1h-post-exercise and analysed for a panel of 10 cytokines using a multiplex immunoassay.Main Outcome Measurements Plasma cytokine concentrations (GM-CSF, IL-1β, IL-4, IL-5, IL-6, IL-8, IL-10, IL-13, IL-17E/25, TNF-α). Data were log-transformed then analysed using two-way repeated-measures ANOVA; one participant was an extreme outlier and excluded.Results Five cytokines (GM-CSF, IL-1β, IL-4, IL-13, IL-17E/25) returned <20% concentrations within detection limits and were excluded from further analysis. The other cytokines returned >85% samples in range. IL-6, IL-8 and IL-10 increased after exercise (IL-6: F=36, p≤0.0001; IL-8: F=39, p≤0.0001; IL-10: F(1,21)=8.9, p=0.0072). There was a trend towards a greater post-exercise increase in IL-10 with HME (HME: median 0.062 (range -0.203–1.053) pg/mL; no-HME: 0.047 (-0.079–0.50) pg/mL; F=3.0, p=0.096). There were no significant interactions for other cytokines.Conclusions Use of an HME during exercise in a sub-zero environment did not affect systemic pro- and anti-inflammatory cytokine responses to exercise. Local inflammatory markers in the lungs may be relevant to investigate in future studies.
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| 8. |
- Lindegaard, Tomas, et al.
(författare)
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Investigating the potential of a novel internet-based cognitive behavioural intervention for Dari and Farsi speaking refugee youth : A feasibility study
- 2022
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Ingår i: Internet Interventions. - : Elsevier BV. - 2214-7829. ; 28
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Tidskriftsartikel (refereegranskat)abstract
- Objective: Over half of the world's forcibly displaced persons are under the age of 25, with many suffering from symptoms of psychological disorders. Many refugees from Afghanistan or Iran speak either Dari or Farsi, which are mutually intelligible dialects of the Persian language. Previous research on adult refugees and immigrants have shown that internet-based cognitive behavioural therapy (ICBT) can be a valuable complement to other forms of treatment. However, there is a lack of knowledge if ICBT is a feasible and acceptable treatment for adolescents and young adults with a refugee background. Method: Fifteen Dari/Farsi-speaking adolescents and young adults between 15 and 26 years of age participated in a feasibility study of a novel individually tailored guided ICBT intervention targeting symptoms of common mental disorders such as anxiety and depression. Self-reported symptoms of anxiety and depression were assessed using the Hopkins Symptom Checklist-25 (HSCL-25) as the primary outcome measure. Four of the treatment participants and three additional non-treatment participants consented to be interviewed regarding the programme's acceptability. The interviews were analysed using Thematic Analysis. Results: The intervention suffered from low adherence, with only 3 participants completing the post-treatment assessment and with participants completing 0.9 modules on average, which meant that the intended quantitative analysis of the pre to post change was not possible. The thematic analysis resulted in two overarching categories, barriers and facilitators, that each contained four themes and related subthemes. Overall, the intervention was deemed culturally relevant and easy to understand. The most salient barriers to participation across interviews concerned interference of symptoms such as concentration difficulties, low energy, and a lack of human contact and support. Conclusion: The current version of the ICBT program demonstrated low feasibility and acceptability in the target population, which mainly seemed to be related to the delivery format. Future studies should investigate if a blended treatment format with regular phone/video calls with a therapist can increase adherence to the intervention.
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| 9. |
- Lögdal, Nestor, et al.
(författare)
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Individual Fluctuations in Blood Lactate Concentration During an Ice Hockey Game; Differences Between Player Positions
- 2022
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Ingår i: International Journal of Exercise Science. - : Western Kentucky University. - 1939-795X. ; 15:6, s. 985-993
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Tidskriftsartikel (refereegranskat)abstract
- International Journal of Exercise Science 15(6): 985-993, 2022. The main purpose of the current study was to provide an in-depth description of individual player’s intra-game physiological responses during an ice hockey game. A secondary aim was to compare these responses between forwards and defensemen. Six elite junior ice hockey players, three forwards and three defensemen, median (interquartile range) 17 (17–17) years, 182 (180– 185) cm, and 78 (74– 80) kg were recruited to participate in the study. Capillary blood samples were taken following each shift and analyzed for blood lactate concentration (BLC). Heart rate (HR) was registered continuously throughout the game. The game was filmed and shift lengths were determined retrospectively using a time-motion analysis. All players had BLC ranging between 1.8 and 10.7 mmol/L (mean = 5.5 mmol/L), with forwards reaching a significantly higher value than defensive players (F1,32 = 75.2, p < 0.0001), a significant effect of time was also observed (F2,25 = 6.4, p = 0.0058). During the game, the players accumulated 11:18 ± 5:04 (minutes:seconds) above 90% of their maximal heart rate (HRmax), but the majority of the time was below 80% of HRmax. The fluctuations in BLC and heart rate demonstrate that the intensity is highly variable during games and challenges both aerobic and anaerobic metabolic pathways. The higher BLC of forwards might indicate that they perform more high-intensity work during games than defensive players.
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