| 1. |
- Nilsson, Kerstin, et al.
(författare)
-
54 forskare: Inte alla klarar höjd pensions-ålder
- 2017
-
Ingår i: Svenska Dagbladet, Stockholm. - 1101-2412.
-
Tidskriftsartikel (populärvet., debatt m.m.)abstract
- Ett hållbart och acceptabelt pensionssystem måste utformas utifrån personliga förutsättningar och förhållanden i arbetslivet, så att fler klarar att arbeta i högre ålder. Att enbart genom ekonomiska åtgärder höja pensionsåldern är inte långsiktigt hållbart, skriver 54 forskare.DEBATT | PENSIONForskning visar att cirka var fjärde har en diagnos eller skada orsakad av sitt arbete. Detta gör arbetsorsakad sjukdom och skada till ett betydelsefullt folkhälsoproblem. Att då enbart genom ekonomiska åtgärder höja pensionsåldern för samtliga (yrkes)grupper utifrån deras kronologiska ålder är inte långsiktigt hållbart när individers biologiska ålder är så olika bland annat till följd av arbetslivet. Detta är en demokratifråga. Forskning om äldre i arbetslivet och hållbart arbete visar att man då främst flyttar individer från pensionssystemet till sjukförsäkringssystemet och ökar klyftorna i samhället.Debatt Det här är en argumenterande text med syfte att påverka. Åsikterna som uttrycks är skribentens egna.Vi är 54 forskare som nu gemensamt har skrivit denna debattartikel. Anledningen är att vi är oroade över att cirka var fjärde blir sjuk av sitt arbete samtidigt som man i det förslag som ligger om att senarelägga ålderspensionen i princip utgår ifrån att arbetskraftsdeltagande enbart styrs av ekonomin. Vi vill trycka på betydelsen av åtgärder i arbetslivet för att komma tillrätta med ohälsan, det vill säga inte enbart ekonomiska restriktioner som tvingar folk som inte kan, vill och orkar att stanna kvar i arbetslivet till en högre kronologisk ålder.Pensionssystemet bygger på att vi ska arbeta en viss del av våra liv för att förtjäna möjligheter till pension. Vi bör dock inte enbart utgå ifrån antalet år sedan en person föddes, då korttidsutbildade generellt träder in på arbetsmarknaden tidigare än långtidsutbildade. De har alltså varit en del av arbetskraften från en yngre ålder. Människor med kortare utbildning har oftare ett arbete som innebär påfrestningar som kan inverka negativt på hälsotillståndet och som till och med kan påskynda det biologiska åldrandet. Dessutom lever korttidsutbildade generellt sett inte lika länge som långtidsutbildade, vilket delvis även avspeglar skilda livs- och arbetsvillkor.Den svenska sjukförsäkringsreformen 2008 avsåg att få tillbaka människor i arbete. Men studien fann att den faktiskt bidrog till att fler gick i tidig ålderspension av dem som var i åldern 55–64 år. Ökningen var störst bland korttidsutbildade. Mer än 5 procent fler gick i tidig ålderspension då det blev svårare att få sjukpenning och sjukersättning. Vi kan notera att det är vanligare att manliga chefer tar ut tidig ålderspension, jämfört med kvinnliga maskinskötare inom tillverkningsindustrin. I vissa yrken är det dessutom vanligare att människor, trots pension, både orkar och faktiskt ges möjlighet att arbeta vidare om de har en specialkompetens som efterfrågas. Om vi endast kombinerar ekonomiska morötter med piskor finns en stor risk att vi ökar klyftan mellan grupper som både kan och vill fortsätta att yrkesarbeta och personer som av olika skäl inte längre kan eller orkar.Ta nytta av den forskning som vi har tagit fram. Ett hållbart och acceptabelt pensionssystem måste utformas utifrån personliga förutsättningar och förhållanden i arbetslivet. Ett hållbart arbetsliv för allt fler i vår åldrande befolkning fordrar att vi samtidigt beaktar faktorer som relaterar till biologisk/kroppslig ålder, mental/kognitiv ålder samt social ålder/livsloppsfas och våra attityder som är kopplade till ålder. Vi måste ta större hänsyn till olika förutsättningar och varierande funktionsförmåga och utifrån detta anpassa de åtgärder som gör att arbetslivet blir möjligt och hållbart för allt fler även i högre ålder.”Morötter” är viktigare för en god arbetshälsa och hög produktivitet än en piska i form av oron för en dålig ekonomi.Forskning visar att pedagogik som bygger på ”morötter” oftast är betydligt bättre än ”piskor” för att nå framgångsrika och långsiktiga mål. ”Morötter” i samhället, för organisationer, företag och individer är därför viktiga för god arbetshälsa och fortsatt produktivitet och kan bidra till ett längre arbetsliv även för grupper som tidigare inte ens klarat av att arbeta fram till pensionsåldern. Genom forskning inom området har bland annat swage-modellen utarbetats. Detta är ett verktyg som visar på komplexiteten i ett hållbart arbetsliv och tillsammans med systematiskt arbetsmiljöarbete, handlingsplaner och åtgärder syftar till ett mer hållbart arbetsliv. Morötter är enligt forskningen i detta sammanhang åtgärder för en god fysisk och mental arbetsmiljö, avpassad arbetsbelastning, stödjande teknik, att man kan anpassa arbetstakten, alternativa arbetstidsmodeller vid behov. Det är viktigt att man känner sig trygg och förväntas och tillåts vara delaktig, att man blir sedd av chefen och arbetskamraterna. Att de egna arbetsuppgifterna upplevs som meningsfulla och behövda av andra skapar självförverkligande och tillfredsställelse i arbetet. Att man känner att ens arbetsuppgifter och man själv är viktig för organisationen och företaget. Att man trots högre ålder inkluderas i olika nysatsningar och får tillgång till kompetensutveckling och inte blir åsidosatt eller åldersdiskriminerad. Utvärderingar visar att de äldre medarbetarna som fick några av dessa anpassningar och möjligheter var mer effektiva, utvilade, stimulerade när de var på arbetet samtidigt som sjukfrånvaron minskade. Vilket i sin tur bidrar till ett längre arbetsliv för grupper som tidigare inte klarat av att arbeta fram till pensionsåldern. I organisationer som bygger på en deltagar- och lärandekultur rustas de anställda för att klara omställningar, nya arbetsuppgifter och vid behov även yrkesbyten.Med en åldrande befolkning där allt fler lever allt längre behöver vi arbeta till en högre ålder i framtiden för att pensionssystemet ska hålla. Men ”morötter” är viktigare för en god arbetshälsa och hög produktivitet än en piska i form av oron för en dålig ekonomi. Det kräver också att vi ändrar våra attityder och förhållningssätt till äldre på arbetsmarknaden, vilket vi bäst gör genom att organisationer och företag får incitament till och erbjuder mer individanpassade arbetsvillkor, särskilt för personer i högre ålder. Låt oss därför använda den framtagna kunskapen i praktiken för att göra arbetslivet friskt och hållbart för alla åldrar.
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| 2. |
- Nilsson, Kerstin, et al.
(författare)
-
Vi är oroade över senare ålderspension
- 2017
-
Ingår i: Dagens Samhälle. - 1652-6511.
-
Tidskriftsartikel (populärvet., debatt m.m.)abstract
- Var fjärde person blir i dag sjuk till följd av sitt arbete. Att höja pensionsåldern för alla yrkesgrupper, utan konkreta åtgärder för att minska ohälsan, är därför problematiskt och mycket oroande. Det är, enligt forskarna, inte långsiktigt samhällsekonomiskt lönsamt att utan andra åtgärder höja pensionsåldern för alla. Vi – 54 forskare – är mycket oroade över konsekvenserna av att, som föreslagits, senarelägga ålderspensionen.Förslaget utgår i princip från arbetskraftsdeltagande i princip enbart styrs av ekonomin, medan forskningen visar att det bara är en av flera faktorer som styr hur länge och hur mycket människor väljer att arbeta.Det här sättet att lösa problemet med en åldrande befolkning och ett sviktande pensionssystem är inte samhällsekonomiskt lönsamt på lång sikt, utan riskerar bara att flytta runt folk mellan olika ersättningssystem. Pensionssystemet bygger på att vi ska arbeta en viss del av våra liv för att tjäna in vår pension. Vi bör dock inte enbart utgå ifrån ålder eller antalet år sedan en person föddes då korttidsutbildade generellt träder in på arbetsmarknaden tidigare än långtidsutbildade. De med kortare utbildningstid har alltså varit en del av arbetskraften från en yngre ålder. Människor med kortare utbildning har också oftare ett arbete som innebär påfrestningar som kan inverka negativt på hälsotillståndet och som till och med kan påskynda det biologiska åldrandet. Dessutom lever korttidsutbildade generellt sett inte lika länge som långtidsutbildade, vilket delvis även avspeglar skilda livs- och arbetsvillkor.Ta nytta av den forskning som vi har tagit fram. Ekonomin är självklart viktigt för att vi ska vilja arbeta, men den är som sagt enbart en av flera faktorer med betydelse vårt arbetsliv.Hälsotillståndet, både det fysiska och det mentala, har en avgörande betydelse för hur länge och hur mycket vi orkar arbeta. Ett fysiskt och mentalt belastande arbete är en stark riskfaktor för en nedsatt hälsa i slutet av arbetslivet. Arbetstid, arbetstakt och möjlighet till återhämtning spelar en allt större roll ju äldre vi blir. Andra aspekter är arbetsinnehåll, hur meningsfulla och stimulerande arbetsuppgifterna är, balansen mellan arbete och familjesituation och fritidsaktiviteter. Organisationskultur, ledarskapet, stöd i arbetet och kompetens har stor betydelse för om vi ska kunna och vilja arbeta till en högre ålder. Vi måste ta större hänsyn till olika förutsättningar och varierande funktionsförmåga och utifrån detta anpassa de åtgärder som gör att arbetslivet blir möjligt och hållbart för allt fler även i högre ålder.Ett hållbart och acceptabelt pensionssystem måste därför utformas utifrån personliga förutsättningar och förhållanden i arbetslivet. Ett hållbart arbetsliv för allt fler i vår åldrande befolkning fordrar att vi samtidigt beaktar faktorer som relaterar till biologisk/kroppslig ålder, mental/kognitiv ålder samt social ålder/livsloppsfas samt de attityder som är kopplade till ålder.
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| 3. |
- Håkansson, Mikael, 1975, et al.
(författare)
-
Spontaneously broken time-reversal symmetry in high-temperature superconductors
- 2015
-
Ingår i: Nature Physics. - : Springer Science and Business Media LLC. - 1745-2481 .- 1745-2473. ; 11:9, s. 755-760
-
Tidskriftsartikel (refereegranskat)abstract
- Conventional superconductors are strong diamagnets that, through the Meissner effect, expel magnetic fields. It would therefore be surprising if a superconducting ground state would support spontaneous magnetics fields. Such time-reversal symmetry-broken states have been proposed for the high-temperature superconductors, but their identification remains experimentally controversial. Here we show a route to a low-temperature superconducting state with broken time-reversal symmetry that may accommodate currently conflicting experiments. This state is characterized by an unusual vortex pattern in the form of a necklace of fractional vortices around the perimeter of the material, where neighbouring vortices have opposite current circulation. This vortex pattern is a result of a spectral rearrangement of current-carrying states near the edges.
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| 4. |
- Åkerholm, Mikael, et al.
(författare)
-
Handling Subsystems using the SaveComp Component Technology
- 2006
-
Ingår i: Workshop on Models and Analysis for Automotive Systems (WMAAS'06) in conjunction with the 27th IEEE Real-Time Systems Symposium (RTSS'06), Rio de Janeiro, Brazil.
-
Konferensbidrag (refereegranskat)
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| 5. |
- Åkerholm, Mikael, et al.
(författare)
-
Handling Subsystems using the SaveComp Component Technology
- 2006
-
Ingår i: Proceedings of Workshop on Models and Analysis for Automotive Systems (WMAAS'06).
-
Konferensbidrag (refereegranskat)abstract
- This article presents a component technology (SaveCCT) suitable for the development of embedded vehicular control-system software. To satisfy the requirements in the vehicular domain, SaveCCT is designed to allow analysis and verification during the entire software development process.We give an overview of SaveCCT and its associated component model SaveCCM, together with an outline of how the framework intends to support the integration of larger -- possibly independently developed -- subsystems into a complete vehicle control system.
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| 6. |
- Åkerholm, Mikael, et al.
(författare)
-
The SaveCCM Language Reference Manual
- 2007
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- This language reference describes the syntax and semantics of SaveCCM, acomponent modeling language for embedded systems designed with vehicle applications and safety concerns in focus. The SaveCCM component model wasdefined within the SAVE project. The SAVE components are influenced mainlyby the Rubus component technology, with a switch concept similar to thatin Koala. The semantics is defined by a transformation into timed automatawith tasks, a formalism that explicitly models timing and real-time task scheduling.The purpose of this document is to describe a semantics of the SAVE component modeling language, which can be used to describe timing and functional behavior of components. The model of a system is in some cases an over approximation of the actual system behavior. An implementation of a model can resolve non-determinism e.g. by merging tasks or assigning a scheduling policy (such as static scheduling or fixed priority, preemptive or not) that will resolvethe non-determinism.
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| 7. |
- Alken, Jenny, et al.
(författare)
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Rates of Extreme Neonatal Hyperbilirubinemia and Kernicterus in Children and Adherence to National Guidelines for Screening, Diagnosis, and Treatment in Sweden
- 2019
-
Ingår i: JAMA Network Open. - : AMER MEDICAL ASSOC. - 2574-3805. ; 2:3
-
Tidskriftsartikel (refereegranskat)abstract
- IMPORTANCE Neonatal hyperbilirubinemia can cause lifelong neurodevelopmental impairment (kernicterus) even in high-resource settings. A better understanding of the incidence and processes leading to kernicterus may help in the design of preventive measures. OBJECTIVES To determine incidence rates of hazardous hyperbilirubinemia and kernicterus among near-term to term newborns and to evaluate health care professional adherence to best practices. DESIGN, SETTING, AND PARTICIPANTS This population-based nationwide cohort study used prospectively collected data on the highest serum bilirubin level for all infants born alive at 35 weeks' gestation or longer and admitted to neonatal care at all 46 delivery and 37 neonatal units in Sweden from 2008 to 2016. Medical records for newborns with hazardous hyperbilirubinemia were evaluated for best neonatal practices and for a diagnosis of kernicterus up to 2 years of age. Data analyses were performed between September 2017 and February 2018. EXPOSURES Extreme (serum bilirubin levels, 25.0-29.9mg/dL [425-509 mu mol/L]) and hazardous (serum bilirubin levels, >30.0mg/dL [>510 mu mol/L]) neonatal hyperbilirubinemia. MAIN OUTCOMES AND MEASURES The primary outcome was kernicterus, defined as hazardous neonatal hyperbilirubinemia followed by cerebral palsy, sensorineural hearing loss, gaze paralysis, or neurodevelopmental retardation. Secondary outcomeswere health care professional adherence to national guidelines using a predefined protocol with 10 key performance indicators for diagnosis and treatment as well as assessment of whether bilirubin-associated brain damage might have been avoidable. RESULTS Among 992 378 live-born infants (958 051 term births and 34 327 near-term births), 494 (320 boys; mean [SD] birth weight, 3505 [527] g) developed extreme hyperbilirubinemia (50 per 100 000 infants), 6.8 per 100 000 infants developed hazardous hyperbilirubinemia, and 1.3 per 100 000 infants developed kernicterus. Among 13 children developing kernicterus, brain injury was assessed as potentially avoidable for 11 children based on the presence of 1 or several of the following possible causes: untimely or lack of predischarge bilirubin screening (n = 6), misinterpretation of bilirubin values (n = 2), untimely or delayed initiation of treatment with intensive phototherapy (n = 1), untimely or no treatment with exchange transfusion (n = 6), or lack of repeated exchange transfusions despite indication (n = 1). CONCLUSIONS AND RELEVANCE Hazardous hyperbilirubinemia in near-term or term newborns still occurs in Sweden and was associated with disabling brain damage in 13 per million births. For most of these cases, health care professional noncompliance with best practices was identified, suggesting that a substantial proportion of these cases might have been avoided.
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| 8. |
- Andersson, Bengt, 1947, et al.
(författare)
-
Computational fluid dynamics for engineers
- 2011
-
Bok (övrigt vetenskapligt/konstnärligt)abstract
- © B. Andersson, R. Andersson, L. Håkansson, M. Mortensen, R. Sudiyo, B. vanWachem, L. Hellstr ¨om 2012. Computational fluid dynamics, CFD, has become an indispensable tool for many engineers. This book gives an introduction to CFD simulations of turbulence, mixing, reaction, combustion and multiphase flows. The emphasis on understanding the physics of these flows helps the engineer to select appropriate models to obtain reliable simulations. Besides presenting the equations involved, the basics and limitations of the models are explained and discussed. The book combined with tutorials, project and power-point lecture notes (all available for download) forms a complete course. The reader is given hands-on experience of drawing, meshing and simulation. The tutorials cover flow and reactions inside a porous catalyst, combustion in turbulent non-premixed flow, and multiphase simulation of evaporation spray respectively. The project deals with design of an industrial-scale selective catalytic reduction process and allows the reader to explore various design improvements and apply best practice guidelines in the CFD simulations.
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| 9. |
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| 10. |
- Andersson, Hannah, et al.
(författare)
-
Oral Administration of Lactobacillus plantarum 299v Reduces Cortisol Levels in Human Saliva during Examination Induced Stress : A Randomized, Double-Blind Controlled Trial
- 2016
-
Ingår i: International Journal of Microbiology. - : Hindawi Publishing Corporation. - 1687-918X .- 1687-9198. ; 2016
-
Tidskriftsartikel (refereegranskat)abstract
- Objective. To clarify the effect of Lactobacillus plantarum 299v on the salivary cortisol and salivary IgA levels in young adults under examination stress. Design. Forty-one students with an upcoming academic exam were included in a randomized double-blind, placebo-controlled study. The probiotic bacteria or the placebo product was administered in capsules once a day during 14 days. Saliva was collected and a perceived stress test was filled out at each sampling occasion. Saliva was collected for cortisol analysis by Electrochemiluminescence Immunoassay (ECLI) and salivary IgA was analysed by Enzyme-Linked Immunosorbent Assay (ELISA). Abundance of lactobacilli was evaluated by cultivation of saliva on selective medium and identification of L. plantarum 299v was done on randomly selected colonies by a random amplification of polymorphic DNA (RAPD) typing. Results. A significant difference in cortisol levels was found between the treatment group and the placebo group (P < 0.05), together with a significant increase in levels of lactobacilli in the treatment group compared with the placebo group (P < 0.001). No significant changes were found for salivary IgA. Conclusion. A probiotic bacterium with ability to reduce symptoms of irritable bowel syndrome (IBS) prohibited increased levels of the stress marker cortisol during the examination period. The registration number of the study is NCT02974894, and the study is registered at ClinicalTrials.gov.
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| 11. |
- Björemark, Per Martin, 1975, et al.
(författare)
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Absolute Asymmetric Synthesis of a Tetrahedral Silver Complex
- 2015
-
Ingår i: Chemistry-a European Journal. - : Wiley. - 0947-6539. ; 21:24, s. 8750-8753
-
Tidskriftsartikel (refereegranskat)abstract
- Even though the isolation of tetrahedral stereoisomers usually presents a synthetic challenge, a highly enantioenriched tetrahedral silver complex could be easily accessed by either crystallization or Viedma ripening. The overall preparation may be regarded as an example of absolute asymmetric synthesis. Experimental results indicate that both crystallization and Viedma ripening follow a similar cluster-controlled mechanism.
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| 12. |
- Björemark, Per Martin, 1975, et al.
(författare)
-
Absolute Asymmetric Synthesis: Viedma Ripening of Co(bpy)(3) (2+) and Solvent-Free Oxidation to Co(bpy)(3) (3+)
- 2015
-
Ingår i: Chemistry-a European Journal. - : Wiley. - 0947-6539. ; 21:30, s. 10630-33
-
Tidskriftsartikel (refereegranskat)abstract
- Syntheses of [Co(bpy)(3)](2+) yield racemic solutions because the - and -enantiomers are stereochemically labile. However, crystallization and attrition-enhanced deracemization can give homochiral crystal batches of either handedness in quantitative yield. Subsequently, solvent-free oxidation with bromine vapour fixes the chirality because [Co(bipy)(3)](3+) does not enantiomerize in solution at ambient temperature. This combination of Viedma ripening and the labile/inert Co-II/Co-III couple constitutes a convenient method of absolute asymmetric synthesis.
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| 13. |
- Björklund, Lars
(bidragsgivare, creator_code:cre_t)
-
Vård av extremt för tidigt födda barn : en vägledning för vård av barn födda före 28 fullgångna graviditetsveckor
- 2014
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Rapport (refereegranskat)abstract
- När ett barnföds extremt för tidigt, det vill säga före 28 fullgångna graviditetsveckor, krävs särskilda resurser och kompetenser. Vården av dessa barn är komplicerad och vårdpersonalen ställs ofta inför svåra medicinska bedömningar. Denna vägledning är tänkt att stödja vårdgivare och verksamhetschefer ansvariga för neonatalvård att ge en god vård till alla extremt för tidigt födda barn. Vägledningen innehåller rekommendationer inom områden där behovet av stöd har ansetts som störst.Extremt för tidigt födda barn som fötts på regionklinik har visats ha en väsentlig högre överlevnad än barn födda på andra sjukhus. Detta motiverar att omhändertagandet av mor och barn bör ske på sjukhus med stor erfarenhet av specialiserad obstetrik och neonatal intensivvård. Det bör även finnas tillgång till en väl fungerande transportorganisation med specialiserad personal både för mammor med hotande förtidsbörd och för de extremt för tidigt födda barn som är i behov av att flyttas efter födelsen.Barnen drabbas ofta av allvarliga komplikationer och sjukdomar som kan leda till både akuta och framtida problem. Nästan alla extremt för tidigt födda barn behöver någon form avandningsunderstöd och många behöver avancerad respiratorvård. Många barn har ett långvarigt behov av extra syrgas och alla måste övervakas noga för att undvika ögonskador (prematuritets-retinopati). Cirkulationsproblem är vanliga och över hälften av barnen får behandling för att stänga ductus arteriosus, vilket är en fosterförbindelse i cirkulationen och om den kvarstår öppen kan det få negativa effekter. Akut lungsjukdom och sviktande cirkulation bidrar till att extremt för tidigt födda barn ofta drabbas av blödningar och syrebrist i centrala nervsystemet. Barnens omogna hjärnor bör därför bedömas fortlöpande och faktorer som kan påverka hjärnans utveckling och funktion negativt bör minimeras.För att främja de omogna barnens hälsa och utveckling är det centralt att vården bedrivs på ett sådant sätt att vårdrelaterade infektioner förebyggs och att smärta och stress minimeras. Smärtbehandling bör i första hand ske genom icke-farmakologiska metoder, men vid behov även med läkemedel.För att optimera tillväxten bör utarbetade nutritionsrekommendationer följas. De extremt för tidigt födda barnen har ett näringsbehov som vida överstiger det hos fullgångna nyfödda, samtidigt som näringstillförseln ofta försvåras av omogna organfunktioner och komplikationer från magtarmkanalen.Att få ett extremt för tidigt fött barn innebär en stor påfrestning för familjen. Vården bör organiseras så att den är patient- och familjecentrerad, där barnets och familjens individuella behov respekteras så långt det är möjligt och där föräldrarna stödjs och kontinuerligt informeras om barnets tillstånd och prognos.Extremt för tidigt födda barn bör följas på kort och lång sikt för att öka vårdenskunskap om följderna av en extremt för tidig födelse. Ett strukturerat uppföljningssystem ger förutsättningar för att utvärdera och ständigt förbättra vården för dessa barn.
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| 14. |
- Blom, Kristin, et al.
(författare)
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Eosinophil associated genes in the inflammatory bowel disease 4 region : Correlation to inflammatory bowel disease revealed
- 2012
-
Ingår i: World Journal of Gastroenterology. - : Baishideng Publishing Group Inc.. - 1007-9327 .- 2219-2840. ; 18:44, s. 6409-6419
-
Tidskriftsartikel (refereegranskat)abstract
- AIM: To study the association between inflammatory bowel disease (IBD) and genetic variations in eosinophil protein X (EPX) and eosinophil cationic protein (ECP). METHODS: DNA was extracted from ethylene diamine tetraacetic acid blood of 587 patients with Crohn's disease (CD), 592 with ulcerative colitis (UC) and 300 healthy subjects. The EPX405 (G > C, rs2013109), ECP434 (G > C, rs2073342) and ECP562 (G > C, rs2233860) gene polymorphisms were analysed, by the 5'-nuclease allelic discrimination assay. For determination of intracellular content of EPX and ECP in granulocytes, 39 blood samples was collected and extracted with a buffer containing cetyltrimethylammonium bromide. The intracellular content of EPX was analysed using an enzyme-linked immunosorbent assay. The intracellular content of ECP was analysed with the UniCAP (R) system as described by the manufacturer. Statistical tests for calculations of results were chi(2) test, Fisher's exact test, ANOVA, Student-Newman-Keuls test, and Kaplan-Meier survival curve with Log-rank test for trend, the probability values of P < 0.05 were considered statistically significant. RESULTS: The genotype frequency for males with UC and with an age of disease onset of >= 45 years (n = 57) was for ECP434 and ECP562, GG = 37%, GC = 60%, CC = 4% and GG = 51%, GC = 49%, CC = 0% respectively. This was significantly different from the healthy subject's genotype frequencies of ECP434 (GG = 57%, GC = 38%, CC = 5%; P = 0.010) and ECP562 (GG = 68%, GC = 29 /0,CC = 3%; P = 0.009). The genotype frequencies for females, with an age of disease onset of >= 45 years with CD (n = 62), was for the ECP434 and ECP562 genotypes GG = 37%, GC = 52%, CC = 11% and GG = 48%, GC = 47% and CC = 5% respectively. This was also statistically different from healthy controls for both ECP434 (P = 0.010) and ECP562 (P = 0.013). The intracellular protein concentration of EPX and ECP was calculated in mu g/10(6) eosinophils and then correlated to the EPX 405 genotypes. The protein content of EPX was highest in the patients with the CC genotype of EPX405 (GG = 4.65, GC = 5.93, and CC = 6.57) and for ECP in the patients with the GG genotype of EPX405 (GG = 2.70, GC = 2.47 and CC = 1.90). ANOVA test demonstrated a difference in intracellular protein content for EPX (P = 0.009) and ECP (P = 0.022). The age of disease onset was linked to haplotypes of the EPX405, ECP434 and ECP562 genotypes. Kaplan Maier curve showed a difference between haplotype distributions for the females with CD (P = 0.003). The highest age of disease onset was seen in females with the EPX405CC, ECP434GC, ECP562CC haplotype (34 years) and the lowest in females with the EPX405GC, ECP434GC, ECP562GG haplotype (21 years). For males with UC there was also a difference between the highest and lowest age of the disease onset (EPX405CC, ECP434CC, ECP562CC, mean 24 years vs EPX405GC, ECP434GC, ECP562GG, mean 34 years, P = 0.0009). The relative risk for UC patients with ECP434 or ECP562-GC/CC genotypes to develop dysplasia/cancer was 2.5 (95%CI: 1.2-5.4, P = 0.01) and 2.5 (95%CI: 1.1-5.4, P = 0.02) respectively, compared to patients carrying the GG-genotypes. CONCLUSION: Polymorphisms of EPX and ECP are associated to IBD in an age and gender dependent manner, suggesting an essential role of eosinophils in the pathophysiology of IBD.
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| 15. |
- Borel, Cédric, 1979, et al.
(författare)
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Family of Isoreticular Chiral Metal-Organic Frameworks Based on Coordination and Hydrogen Bonds in [M[Co(ethylenediamine)(oxalato)2]2]
- 2010
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Ingår i: Crystal Growth & Design. - : American Chemical Society (ACS). - 1528-7483 .- 1528-7505. ; 10:4, s. 1971-1978
-
Tidskriftsartikel (refereegranskat)abstract
- From the parent compound [Ca[Co(ethylenediamine)(oxalato)2]2]n . 4H2O, 1, a series of framework compounds was prepared via the soluble sodium salt and crystal growth with the divalent metal ions Cd2+, Mn2+, and Sr2+, (2-4). These compounds have the same general formula [M[Co(ethylenediamine)(oxalato)2]2]n . xH2O, and they all form the same four- and eight-connected 3D net having scu topology (and are thus isoreticular) with water filled channels of variable size running in one direction of the crystals. However, they crystallize in two different space groups, the chiral P21) (3, 4, and the low temperature form of 1) and the noncentrosymmetric P-4 (1 and 2). The potential voids upon water removal are 18-20% of the unit cell. Preliminary gas sorption measurements at 298 K and 8 bar show substantial CO2 and N2O uptake (12-14% and 15-16% by mass, respectively), while the H2 uptake was 0.18%, a relatively high value considering the low pressure and high temperature.
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| 16. |
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| 17. |
- Brännmark, Mikael, et al.
(författare)
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Lean production and work-related musculoskeletal disorders: overviews of international and Swedish studies
- 2012
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Ingår i: Work. - : IOS Press. - 1051-9815 .- 1875-9270. ; 41, s. 2321-2328
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Tidskriftsartikel (refereegranskat)abstract
- This paper aimed at summarizing the knowledge of the relationship between Lean and work related musculoskeletal disorders (WMSD), and WMSD risk factors, in manufacturing companies. Literature search processes identified 23 publications studying this, in scientific journals. Eight included measurements of WMSD; three were mostly negative, two showed mixed results, one showed no results and two were mostly positive. Eighteen publications included measurements of WMSD risk factors; seven showed mostly negative results, eight snowed mixed results, two showed mostly positive results and one was inconclusive. Three literature reviews were identified, which studied this question; two were mostly negative, while the third was inconclusive. Also, 12 publications of grey literature studying Lean and WMSD risk factors in Swedish organizations were identified; nine showed mixed results, two showed mostly positive results and one showed mostly negative results. Due to the varying quality and study design of the publications, together with the few identified studies, it is difficult to compare them. The context and the implementation also likely affect the results. The general conclusion was that a Lean implementation may increase the risk of WMSD and risk factors for WMSD, if it is not accompanied with an ergonomic intervention.
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| 18. |
- Buijs, Jos, et al.
(författare)
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Localized changes in the structural stability of myoglobin upon adsorption onto silica particles, as studied with hydrogen/deuterium exchange mass spectrometry
- 2003
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Ingår i: Journal of Colloid and Interface Science. - 0021-9797 .- 1095-7103. ; 263:2, s. 441-448
-
Tidskriftsartikel (refereegranskat)abstract
- A new method is presented for monitoring the conformational stability of various parts of a protein that is physically adsorbed onto nanometer-sized silica particles. The method employs hydrogen/deuterium (H/D) exchange of amide hydrogens, a process that is extremely sensitive to structural features of proteins. The resulting mass increase is analyzed with Fourier transform ion cyclotron resonance (FTICR) mass spectrometry. Higher structural specificity is obtained by enzymatically cleaving the adsorbed proteins prior to mass spectrometric analysis. The mass increases of four peptic fragments of myoglobin are followed as a function of the H/D exchange time. The four peptic fragments cover 90% of the myoglobin structure. Two of the peptic fragments, located in the middle of the myoglobin sequence and close to the heme group, do not show any adsorption-induced changes in their structural stability, whereas the more stable C- and N-terminal fragments are destabilized. Interestingly, for the N-terminal fragment, comprising residues 1–29, two distinct and equally large conformational populations are observed. One of these populations has a stability similar to that in solution (−23 kJ/mol), whereas the other population is highly destabilized upon adsorption (−11 kJ/mol).
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| 19. |
- Calner, Mikael, et al.
(författare)
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Diabasen vid Runamo
- 2009
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Ingår i: Geologiskt Forum. - 1104-4721. ; 62, s. 14-17
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Tidskriftsartikel (populärvet., debatt m.m.)
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| 20. |
- Carlson, Johan, et al.
(författare)
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Projekt: SCOPE Norra
- 2011
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Annan publikation (populärvet., debatt m.m.)abstract
- SCOPE Norra är ett samarbetskonsortium för forskning och utveckling tillsammans med massa- och pappersindustrin i Norrbotten och Västerbotten. Projektet koordineras av centrumbildningen ProcessIT Innovations.Inom SCOPE Norra pågår ett flertal delprojekt, uppdelat på ett antal fokusområden.Huvudfinansiär för konsortiet är Tillväxtverket genom medel från EU:s strukturfonder.
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| 21. |
- Challis, Pontus, et al.
(författare)
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Association of Adherence to Surfactant Best Practice Uses with Clinical Outcomes among Neonates in Sweden
- 2021
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Ingår i: JAMA Network Open. - : American Medical Association (AMA). - 2574-3805. ; 4:5
-
Tidskriftsartikel (refereegranskat)abstract
- Importance: While surfactant therapy for respiratory distress syndrome (RDS) in preterm infants has been evaluated in clinical trials, less is known about how surfactant is used outside such a framework.Objective: To evaluate registered use, off-label use, and omissions of surfactant treatment by gestational age (GA) and associations with outcomes, mainly among very preterm infants (GA <32 weeks).Design, Setting, and Participants: This population-based cohort study used registry data for 97377 infants born in Sweden between 2009 and 2018. Infants did not have malformations and were admitted for neonatal care. Data analysis was conducted from June 2019 to June 2020.Exposures: Timing and number of surfactant administrations, off-label use, and omission of use. Registered use was defined by drug label (1-3 administrations for RDS). Omissions were defined as surfactant not administered despite mechanical ventilation for RDS.Main Outcome and Measures: In-hospital survival, pneumothorax, intraventricular hemorrhage grade 3 to 4, duration of mechanical ventilation, use of postnatal systemic corticosteroids for lung disease, treatment with supplemental oxygen at 28 days' postnatal age and at 36 weeks' postmenstrual age. Odds ratios (ORs) were calculated and adjusted for any prenatal corticosteroid treatment, cesarean delivery, GA, infant sex, Apgar score at 10 minutes, and birth weight z score of less than -2.Results: In total, 7980 surfactant administrations were given to 5209 infants (2233 [42.9%] girls; 2976 [57.1%] boys): 629 (12.1%) born at full term, 691 (13.3%) at 32 to 36 weeks' GA, 1544 (29.6%) at 28 to 31 weeks' GA, and 2345 (45.0%) at less than 28 weeks' GA. Overall, 977 infants (18.8%) received off-label use. In 1364 of 3508 infants (38.9%) with GA of 22 to 31 weeks, the first administration of surfactant was given more than 2 hours after birth, and this was associated with higher odds of pneumothorax (adjusted OR [aOR], 2.59; 95% CI, 1.76-3.83), intraventricular hemorrhage grades 3 to 4 (aOR, 1.71; 95% CI, 1.23-2.39), receipt of postnatal corticosteroids (aOR, 1.57; 95% CI, 1.22-2.03), and longer duration of assisted ventilation (aOR, 1.34; 95% CI, 1.04-1.72) but also higher survival (aOR, 1.45; 95% CI, 1.10-1.91) than among infants treated within 2 hours of birth. In 146 infants (2.8%), the recommended maximum of 3 surfactant administrations was exceeded but without associated improvements in outcome. Omission of surfactant treatment occurred in 203 of 3551 infants (5.7%) who were receiving mechanical ventilation and was associated with lower survival (aOR, 0.49; 95% CI, 0.30-0.82). In full-term infants, 336 (53.4%) of those receiving surfactant had a diagnosis of meconium aspiration syndrome. Surfactant for meconium aspiration was not associated with improved neonatal outcomes.Conclusions and Relevance: In this study, adherence to best practices and labels for surfactant use in newborn infants varied, with important clinical implications for neonatal outcomes.
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| 22. |
- Challis, Pontus, et al.
(författare)
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Factors associated with the increased incidence of necrotising enterocolitis in extremely preterm infants in Sweden between two population-based national cohorts (2004-2007 vs 2014-2016)
- 2024
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Ingår i: Archives of Disease in Childhood. - : BMJ Publishing Group Ltd. - 1359-2998 .- 1468-2052. ; 109:1, s. 87-93
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Tidskriftsartikel (refereegranskat)abstract
- Objective To investigate potential risk factors behind the increased incidence of necrotising enterocolitis (NEC) in Swedish extremely preterm infants.Design Registry data from two population-based national cohorts were studied. NEC diagnoses (Bell stage >= II) were validated against hospital records.Patients All liveborn infants <27 weeks of gestation 2004-2007 (n=704) and 2014-2016 (n=895) in Sweden.Main outcome measures NEC incidence.Results The validation process resulted in a 28% reduction of NEC cases but still confirmed a higher NEC incidence in the later epoch compared with the earlier (73/895 (8.2%) vs 27/704 (3.8%), p=0.001), while the composite of NEC or death was lower (244/895 (27.3%) vs 229/704 (32.5%), p=0.022). In a multivariable Cox regression model, censored for mortality, there was no significant difference in early NEC (0-7 days of life) between epochs (HR=0.9 (95% CI 0.5 to 1.9), p=0.9), but being born in the later epoch remained an independent risk factor for late NEC (>7 days) (HR=2.7 (95% CI 1.5 to 5.0), p=0.001). In propensity score analysis, a significant epoch difference in NEC incidence (12% vs 2.8%, p<0.001) was observed only in the tertile of infants at highest risk of NEC, where the 28-day mortality was lower in the later epoch (35% vs 50%, p=0.001). More NEC cases were diagnosed with intramural gas in the later epoch (33/73 (45.2%) vs 6/26 (23.1%), p=0.047).Conclusions The increase in NEC incidence between epochs was limited to cases occurring after 7 days of life and was partly explained by increased survival in the most extremely preterm infants. Misclassification of NEC is common.
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| 23. |
- Diehl, Carl, et al.
(författare)
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Protein Flexibility and Conformational Entropy in Ligand Design Targeting the Carbohydrate Recognition Domain of Galectin-3.
- 2010
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Ingår i: Journal of the American Chemical Society. - : American Chemical Society (ACS). - 1520-5126 .- 0002-7863. ; 132, s. 14577-14589
-
Tidskriftsartikel (refereegranskat)abstract
- Rational drug design is predicated on knowledge of the three-dimensional structure of the protein-ligand complex and the thermodynamics of ligand binding. Despite the fundamental importance of both enthalpy and entropy in driving ligand binding, the role of conformational entropy is rarely addressed in drug design. In this work, we have probed the conformational entropy and its relative contribution to the free energy of ligand binding to the carbohydrate recognition domain of galectin-3. Using a combination of NMR spectroscopy, isothermal titration calorimetry, and X-ray crystallography, we characterized the binding of three ligands with dissociation constants ranging over 2 orders of magnitude. (15)N and (2)H spin relaxation measurements showed that the protein backbone and side chains respond to ligand binding by increased conformational fluctuations, on average, that differ among the three ligand-bound states. Variability in the response to ligand binding is prominent in the hydrophobic core, where a distal cluster of methyl groups becomes more rigid, whereas methyl groups closer to the binding site become more flexible. The results reveal an intricate interplay between structure and conformational fluctuations in the different complexes that fine-tunes the affinity. The estimated change in conformational entropy is comparable in magnitude to the binding enthalpy, demonstrating that it contributes favorably and significantly to ligand binding. We speculate that the relatively weak inherent protein-carbohydrate interactions and limited hydrophobic effect associated with oligosaccharide binding might have exerted evolutionary pressure on carbohydrate-binding proteins to increase the affinity by means of conformational entropy.
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| 24. |
- Dixon-Suen, Suzanne C, et al.
(författare)
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Physical activity, sedentary time and breast cancer risk : a Mendelian randomisation study
- 2022
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Ingår i: British Journal of Sports Medicine. - : BMJ Publishing Group Ltd. - 0306-3674 .- 1473-0480. ; 56:20, s. 1157-1170
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Tidskriftsartikel (refereegranskat)abstract
- OBJECTIVES: Physical inactivity and sedentary behaviour are associated with higher breast cancer risk in observational studies, but ascribing causality is difficult. Mendelian randomisation (MR) assesses causality by simulating randomised trial groups using genotype. We assessed whether lifelong physical activity or sedentary time, assessed using genotype, may be causally associated with breast cancer risk overall, pre/post-menopause, and by case-groups defined by tumour characteristics.METHODS: We performed two-sample inverse-variance-weighted MR using individual-level Breast Cancer Association Consortium case-control data from 130 957 European-ancestry women (69 838 invasive cases), and published UK Biobank data (n=91 105-377 234). Genetic instruments were single nucleotide polymorphisms (SNPs) associated in UK Biobank with wrist-worn accelerometer-measured overall physical activity (nsnps=5) or sedentary time (nsnps=6), or accelerometer-measured (nsnps=1) or self-reported (nsnps=5) vigorous physical activity.RESULTS: Greater genetically-predicted overall activity was associated with lower breast cancer overall risk (OR=0.59; 95% confidence interval (CI) 0.42 to 0.83 per-standard deviation (SD;~8 milligravities acceleration)) and for most case-groups. Genetically-predicted vigorous activity was associated with lower risk of pre/perimenopausal breast cancer (OR=0.62; 95% CI 0.45 to 0.87,≥3 vs. 0 self-reported days/week), with consistent estimates for most case-groups. Greater genetically-predicted sedentary time was associated with higher hormone-receptor-negative tumour risk (OR=1.77; 95% CI 1.07 to 2.92 per-SD (~7% time spent sedentary)), with elevated estimates for most case-groups. Results were robust to sensitivity analyses examining pleiotropy (including weighted-median-MR, MR-Egger).CONCLUSION: Our study provides strong evidence that greater overall physical activity, greater vigorous activity, and lower sedentary time are likely to reduce breast cancer risk. More widespread adoption of active lifestyles may reduce the burden from the most common cancer in women.
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| 25. |
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| 26. |
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| 27. |
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| 28. |
- Eriksson, Kristina, et al.
(författare)
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Experiences in Running a Professional Course on Digitally-Enabled Production in Collaboration Between Three Swedish Universities
- 2022
-
Ingår i: Advances in Transdisciplinary Engineering, Volume 21. - : IOS Press. - 9781614994398 ; , s. 653-664
-
Konferensbidrag (refereegranskat)abstract
- Needs for new competences and knowledge arise as industry 4.0 evolves in increasingly digitalized production. This development entails that job transformations and future skills need attention from the perspective of industry 5.0, where human and machine find ways of working together to improve production performance. Facing this perspective, one challenge is a growing need for novel lifelong learning initiatives, to meet emerging and altering occupations for the fulfilment of future skill requirements. This challenge is addressed here by portraying a case where three Swedish universities have formed a distinctive collaboration to develop a flexible (i.e. blended) course for professionals, in the subject of Digitally-enabled production. The purpose is to develop a sustainable collaboration between the universities and create a course format on master level addressing lifelong learning for the increasingly digitalized production. The ambition is to increase the impact of the universities respective efforts by sharing resources and utilizing individual specialized expertise to develop a practical and relevant course that can reach a larger target group. The course encompasses industry 4.0 readiness on three levels of production systems; plant-, production cell-, and component level; to adopt a holistic view of digitalization in production. We followed an action research approach for continuously collecting and documenting our experiences during the course development, implementation, and dissemination of the course. Within the frame of action research, an explorative case study describes and analyzes the initiative. The results highlight challenges and opportunities for succeeding with this form of co-produced course. The joint course gives professionals possibilities to work on cases from their own companies with expert supervision from three manufacturing levels to address complex challenges in industry 4.0 implementation. To conclude, the importance of lifelong learning in relation to the human-centric approach of industry 5.0 is emphasized as a future direction.
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| 29. |
- Eriksson, Kristina M., 1976-, et al.
(författare)
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A novel blended learning course developed jointly between three universities to address competence development of professionals in digitalized manufacturing
- 2019
-
Ingår i: VILÄR 5-6 december 2019, University West, Trollhättan. - Trollhättan : University West. - 9789188847430 - 9789188847447 ; , s. 6-7
-
Konferensbidrag (övrigt vetenskapligt/konstnärligt)abstract
- New competences and knowledge needs arises as manufacturing industry evolves and becomes increasingly digitalized. Facing this transformation, one of the challenges is the continuous and growing need for novel initiatives for competence development.The case portrayed here stems from a Swedish cross-university project aiming to jointly develop and offer courses for competence development of professionals in the manufacturing and IT sectors. The ambition is to increase the impact of the universities' respective efforts of meeting industry competence needs, where the continuous digital transformation entails that employees must develop or even change their qualifications.The case outlined focus co-production of a joint course package, at master level, between three universities and their respective company networks. Participating universities have long traditions in working closely with companies in research and education, where approaches for co-production have evolved over time. We make use of our joint understanding of the manufacturing industry's specific competence needs and our experiences of sustainable course formats for participants working full time.The joint course covers aspects of a manufacturing company on three levels: plant level i.e. material and production flows, cell level e.g. robotic simulation and visualisation, and system level i.e. data acquisition and monitoring through sensors. Each university is developing a course module of 2.5 ECTS, addressing a level respectively of their specialist competence. Participants are to complete assignments for each course module, i.e. for all three manufacturing levels, where the previous assignment provides an input to the next level, enabling the participants to encompass a holistic view of a manufacturing system. Participants need to combine study and work and at the same time they wish to extend their network, hence we are adopting a blended learning approach, where virtual labs and web conferences are mixed with physical meetings.A variety of challenges arise when designing such novel approaches: combining company networks, course design including online learning, planning of physical course meetings,joint promotion, common admission and validation process, financial models and more. However, engaging in partnerships with industry for knowledge transformation and development has the potential to become rewarding for all parties.
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| 30. |
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| 31. |
- Eriksson, Kristina M., 1976-, et al.
(författare)
-
Experiences in Running a Professional Course on Digitally-Enabled Production in Collaboration Between Three Swedish Universities
- 2022
-
Ingår i: Advances in Transdisciplinary Engineering. - : IOS Press. - 2352-751X .- 2352-7528. ; 21, s. 653-664
-
Tidskriftsartikel (refereegranskat)abstract
- Abstract. Needs for new competences and knowledge arise as industry 4.0 evolvesin increasingly digitalized production. This development entails that jobtransformations and future skills need attention from the perspective of industry 5.0,where human and machine find ways of working together to improve productionperformance. Facing this perspective, one challenge is a growing need for novellifelong learning initiatives, to meet emerging and altering occupations for thefulfilment of future skill requirements. This challenge is addressed here byportraying a case where three Swedish universities have formed a distinctivecollaboration to develop a flexible (i.e. blended) course for professionals, in thesubject of Digitally-enabled production. The purpose is to develop a sustainablecollaboration between the universities and create a course format on master leveladdressing lifelong learning for the increasingly digitalized production. Theambition is to increase the impact of the universities respective efforts by sharingresources and utilizing individual specialized expertise to develop a practical andrelevant course that can reach a larger target group. The course encompassesindustry 4.0 readiness on three levels of production systems; plant-, production cell-,and component level; to adopt a holistic view of digitalization in production. Wefollowed an action research approach for continuously collecting and documentingour experiences during the course development, implementation, and disseminationof the course. Within the frame of action research, an explorative case studydescribes and analyzes the initiative. The results highlight challenges andopportunities for succeeding with this form of co-produced course. The joint coursegives professionals possibilities to work on cases from their own companies withexpert supervision from three manufacturing levels to address complex challengesin industry 4.0 implementation. To conclude, the importance of lifelong learning inrelation to the human-centric approach of industry 5.0 is emphasized as a futuredirection.
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| 32. |
- Gertsovich, Irina, et al.
(författare)
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A novel methodology for the interoperability evaluation of an iris segmentation algorithm
- 2013
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Konferensbidrag (refereegranskat)abstract
- The performance of an iris recognition system depends greatly on how well the iris segmentation part of the system performs its task. The performance of an iris segmentation algorithm can be evaluated using different criteria and methods. Some of the methods evaluate the performance of the segmentation algorithm based on the performance of the whole iris recognition system. Other methods evaluate the performance of an iris segmentation subsystem independent of the performance of the system's other subsystems. To our knowledge there do not exist a generally accepted method or criteria for the evaluation of the standalone iris segmentation subsystem. This paper proposes a novel methodology to compare the performance of different iris segmentation algorithms, applied to different image datasets in a consistent way. The methodology employs the F1 score and an empirical cumulative distribution function. The implementation of the F1 score estimation, adapted to the iris segmentation task is described. Finally the application of the proposed methodology is demonstrated and discussed.
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| 33. |
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| 34. |
- Gudmundsdottir, Anna, et al.
(författare)
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Timing of Pharmacological Treatment for Patent Ductus Arteriosus and Risk of Secondary Surgery, Death or Bronchopulmonary Dysplasia: A Population-Based Cohort Study of Extremely Preterm Infants
- 2015
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Ingår i: Neonatology. - : S. Karger AG. - 1661-7800 .- 1661-7819. ; 107:2, s. 87-92
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Tidskriftsartikel (refereegranskat)abstract
- Background: The optimal timing of pharmacological treatment for patent ductus arteriosus (PDA) in extremely pre-term infants is unknown. Objective: To investigate whether timing of pharmacological PDA treatment is associated with a risk of secondary PDA surgery or death before 3 months of age, or bronchopulmonary dysplasia (BPD) in extremely preterm infants. Methods: In this population-based cohort of infants born before 27 gestational weeks in Sweden in 2004-2007, 290/585 infants (50%) received pharmacological PDA treatment. Cox proportional hazards regression estimated the hazard ratio (HR, with 95% confidence interval, Cl) of secondary PDA surgery or death as a composite outcome in relation to postnatal age at the start of pharmacological treatment: early (0-2 days); intermediate (3-6 days); late (>= 7 days). Furthermore, the odds ratio (OR, with 95% Cl) of BPD was estimated in relation to postnatal age at PDA treatment by conditional logistic regression. Results: The median postnatal age at the start of pharmacological PDA treatment was 4 days. 102 infants had secondary PDA surgery. Timing of PDA treatment was not associated with risk of PDA surgery or death; adjusted HRs were 0.89 (95% CI 0.57-1.39) after an intermediate start and 1.10(95% CI 0.53-2.28) after a late start, compared to an early start of treatment. Compared to the early start of PDA treatment, the intermediate start was not associated with any risk of BPD, while late PDA treatment was associated with a lower BPD risk; adjusted ORs were 0.83 (95% CI 0.42-1.64) and 0.28 (95% CI 0.13-0.61), respectively. Conclusion: Timing of pharmacological PDA treatment after extremely preterm birth is not associated with the risk of secondary PDA surgery or death. Moreover, expectant PDA management is not associated with an increased risk of BPD. (C) 2014 S. Karger AG, Basel
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| 35. |
- Gustafsson, Björn, 1970, et al.
(författare)
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A tetrameric copper(I) alkoxide with a pi-tethered ligand: 2-allyl-6-methylphenoxocopper(I)
- 2002
-
Ingår i: Journal of Organometallic Chemistry. - 0022-328X. ; 649:2, s. 204-208
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Tidskriftsartikel (refereegranskat)abstract
- The complex 2-allyl-6-methylphenoxocopper(I) has been prepared by reaction between mesitylcopper(I) and 2-allyl-6-methylphenol. Crystallographic studies show that the compound is tetrameric with a distorted cubane-type copper(I)-oxygen core, and with additional pi-coordination of the ligand to copper through the alkene functionality (nu(C=C)=1520 cm(-1)). The ligands thus act both as chelates and as bridges between adjacent copper(l) centres. Copper(l) exhibits trigonal pyramidal coordination geometry with Cu-C distances to the C=C group of 1.976(9) and 2.017(11) Angstrom and Cu-O distances of 1.973(6), 2.021(6) and 2.577(6) Angstrom, respectively.
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| 36. |
- Gustafsson, Björn, 1970, et al.
(författare)
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Complexes between copper(I) chloride and polydentate aromatic amines
- 2003
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Ingår i: Inorganica Chimica Acta. - 0020-1693. ; 350, s. 209-214
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Tidskriftsartikel (refereegranskat)abstract
- Two compounds containing polydentate aromatic amines have been prepared and characterised by means of crystal structure determination. Compound 1, catena-mu-chloro-mu-1,4-phenylenediamine-(acetonitrile)copper(I), is an infinite polymeric chain in which copper(I) is bridged alternately by the amine and by chloride. Compound 2, bis[tris(4-aminophenyl)amine](acetonitrile)chlorocopper(l), is a discrete monomer, neutral monomeric complexes being unusual among aminochlorocopper(I) compounds. Moreover. 2 would seem to be the first metal complex containing tris(4-aminophenyl)amine as a ligand whose structure has been determined. copper(I) exhibits distorted tetrahedral coordination geometry in both complexes. Whereas 1 decomposes owing to loss of acetonitrile solvent immediately on exposure to the atmosphere, 2 is far more resistant to decomposition, the solvent molecule being protected by intramolecular and intermolecular pockets formed by the phenyl groups of the triphenylamine ligand.
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| 37. |
- Gustafsson, Björn, 1970, et al.
(författare)
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Complexes between copper(I) halides and 1,2-phenylenediamine
- 2005
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Ingår i: Inorganica Chimica Acta. - : Elsevier BV. - 0020-1693. ; 358, s. 1327-1330
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Tidskriftsartikel (refereegranskat)abstract
- Two copper(I) compounds containing 1,2-phenylenediamine have been prepared and characterised by means of crystal structure determination. The compounds catena-μ-1,2-phenylenediamine(acetonitrile)chlorocopper(I) (1) and catena-μ-1,2-phenylenediamine(acetonitrile)bromocopper(I) (2) are isostructural, bridging to form polymeric chains being effected solely by the aromatic amine and not by halide. Copper(I) exhibits distorted tetrahedral coordination geometry in both complexes. The chains are interconnected to form layers through short intermolecular XH interactions of 2.32.6 , involving amine hydrogen atoms and the terminal chloride or bromide bonded to copper(I). Neither compound is prone to decomposition by loss of the acetonitrile ligand, the reason for this being apparent from inspection of their crystal structures.
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| 38. |
- Gustafsson, Björn, 1970, et al.
(författare)
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Copper(I)-mediated quaternisation of 1,4-diazabicyclo[2.2.2]octane (DABCO). Crystal structure of bis (1-chloromethyl-4-aza-1-azoniabicyclo[2.2.2]octane)-μ-chloro-chlorocopper(I)
- 2005
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Ingår i: Inorganica Chimica Acta. - : Elsevier BV. - 0020-1693. ; 358, s. 1309-1312
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Tidskriftsartikel (refereegranskat)abstract
- Copper(I)-mediated quaternisation of 1,4-diazabicyclo[2.2.2]octane (DABCO) in dichloromethane solvent affords the dichloromethylated ligand, which has been isolated as the copper(I) complex bis (1-chloromethyl-4-aza-1-azoniabicyclo[2.2.2]octane)-μ-chloro-chlorocopper(I) . The crystal structure of the product, a discrete dimer [Cu2(μ-Cl)2Cl2(N(C2H4)3NCH2Cl)2], has been determined. A similar reaction in a mixture of diiodomethane and dichloromethane yields [C6H12N2(CH2I)]2(I3)I, the identity of which was also established by means of crystal-structure determination. The dimeric units of [Cu2(μ-Cl)2Cl2(N(C2H4)3NCH2Cl)2] are interconnected by short ClH interactions of 2.6 to form layers. This ClH interaction, which is the sole intermolecular contact of this magnitude, involves the terminal chloride bonded to copper(I).
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| 39. |
- Gustafsson, Björn, 1970, et al.
(författare)
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Copper(II) is harder than copper(I): a novel mixed-valence example from alkoxide chemistry
- 2003
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Ingår i: New Journal of Chemistry. - : Royal Society of Chemistry (RSC). - 1144-0546 .- 1369-9261. ; 27:3, s. 459-461
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Tidskriftsartikel (refereegranskat)abstract
- Partial oxidation or disproportionation of tetrameric 2-allyl-6-methylphenoxocopper( I) leads to the formation of a novel trinuclear mixed-valence Cu(I) / Cu(II) alkoxide: [Cu-3 {OC6H3 (CH3) [CH2C(H) = CH2]}(4)], in which the central copper( II) atom is coordinated in a distorted square-planar configuration by four oxide ligands, whereas the peripheral copper( I) centres are each bonded to two C = C linkages and to two oxide ligands in a tetrahedral arrangement.
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| 40. |
- Haghighi, Mona, et al.
(författare)
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A Comparison of Rule-based Analysis with Regression Methods in Understanding the Risk Factors for Study Withdrawal in a Pediatric Study
- 2016
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Ingår i: Scientific Reports. - : Springer Science and Business Media LLC. - 2045-2322. ; 6
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Tidskriftsartikel (refereegranskat)abstract
- Regression models are extensively used in many epidemiological studies to understand the linkage between specific outcomes of interest and their risk factors. However, regression models in general examine the average effects of the risk factors and ignore subgroups with different risk profiles. As a result, interventions are often geared towards the average member of the population, without consideration of the special health needs of different subgroups within the population. This paper demonstrates the value of using rule-based analysis methods that can identify subgroups with heterogeneous risk profiles in a population without imposing assumptions on the subgroups or method. The rules define the risk pattern of subsets of individuals by not only considering the interactions between the risk factors but also their ranges. We compared the rule-based analysis results with the results from a logistic regression model in The Environmental Determinants of Diabetes in the Young (TEDDY) study. Both methods detected a similar suite of risk factors, but the rule-based analysis was superior at detecting multiple interactions between the risk factors that characterize the subgroups. A further investigation of the particular characteristics of each subgroup may detect the special health needs of the subgroup and lead to tailored interventions.
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| 41. |
- Hanberg, Annika, et al.
(författare)
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Phthalates and their metabolites in human breast milk, blood and urine as measures for monitoring exposure in human risk groups
- 2005
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- För att undersöka halter av ftalater i svenskar och vilken matris som bäst lämpar sig för hälsorelaterad miljöövervakning har ftalater och ftalatmetaboliter analyserats i en grupp kvinnor som nyligen fött barn. I samband med förlossning på Universitetssjukhuset i Lund tillfrågades förstföderskor om medverkan och 42 kvinnor kom att ingå i studien. När barnet var 2-3 veckor gammalt pumpade mamman ut 50 mL bröstmjölk. Blod- och urinprov togs en vecka senare. Omfattande förändringar av standardmetoder för provtagning av mjölk och blod gjordes för att minimera risken för kontaminering av proverna. För mjölkprovtagningen användes en specialkonstruerad manuell pump av polykarbonat med ftalatfri packning. Blodprov togs med hjälp av endast kanyl och provrör (eftersom propparna i vaccutainrör innehåller ftalater). Proverna förvarades i värmebehandlade glasbehållare och fosforsyra tillsattes för att motverka metabolism av ftalater i mjölk- och blodprover. Analyserna av bröstmjölk visade värden nära eller under detektionsgränsen (LOD) för flertalet ftalater eller deras metaboliter. Även i blod och serum var nivåerna vanligtvis nära eller under LOD. I urin analyserades endast metaboliter och dessa kunde kvantifieras i 53-100 % av proverna. Nivåerna av ftalatmetaboliter i urin hos de svenska kvinnorna var i paritet med nivåerna hos en allmänbefolkning i USA och Tyskland. Några klara korrelationer mellan nivåer i t ex urin och bröstmjölk respektive blod påvisades inte. Resultaten av studien anger att för närvarande är analys av ftalatmetaboliter i urin den mest framkomliga vägen för skattning av ftalatexponering hos människa. Provtagning och analys av mjölk och blod innebar betydligt större svårigheter. Framför allt framstår risken för kontaminering vid provtagning som betydande och en stor del av ftalaterna och dess metaboliter uppvisade låga halter, vid eller under LOD. Dessutom kan ftalater brytas ned i blod och mjölk. I flertalet internationella publicerade studier av ftalatexponering används urinmetabolit-analyser som ett mått på exponering för ftalater. I en nyligen publicerad amerikansk studie av ett 80-tal nyfödda pojkar sågs ett samband mellan kort ano-genitalt avstånd och nivåer av ftalatmetaboliter i urin hos deras mammor under graviditeten. Den amerikanska studien behöver bekräftas, men metaboliterna var desamma som i vår studie och en jämförelse visar att mediannivåerna var lägre för vissa men högre för andra metaboliter. Vår studie indikerar att svenska kvinnor i fertil ålder inte sällan exponeras för ftalater i nivåer som satts i samband med fosterpåverkan.
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| 42. |
- Hansson, Mattias, et al.
(författare)
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Artifactual insulin release from differentiated embryonic stem cells.
- 2004
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Ingår i: Diabetes. - 0012-1797. ; 53:10, s. 2603-9
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Tidskriftsartikel (refereegranskat)abstract
- Several recent reports claim the generation of insulin-producing cells from embryonic stem cells via the differentiation of progenitors that express nestin. Here, we investigate further the properties of these insulin-containing cells. We find that although differentiated cells contain immunoreactive insulin, they do not contain proinsulin-derived C-peptide. Furthermore, we find variable insulin release from these cells upon glucose addition, but C-peptide release is never detected. In addition, many of the insulin-immunoreactive cells are undergoing apoptosis or necrosis. We further show that cells cultured in the presence of a phosphoinositide 3-kinase inhibitor, which previously was reported to facilitate the differentiation of insulin(+) cells, are not C-peptide immunoreactive but take up fluorescein isothiocyanate-labeled insulin from the culture medium. Together, these data suggest that nestin(+) progenitor cells give rise to a population of cells that contain insulin, not as a result of biosynthesis but from the uptake of exogenous insulin. We conclude that C-peptide biosynthesis and secretion should be demonstrated to claim insulin production from embryonic stem cell progeny.
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| 43. |
- Hellberg, Sandra, et al.
(författare)
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Dynamic Response Genes in CD4+ T Cells Reveal a Network of Interactive Proteins that Classifies Disease Activity in Multiple Sclerosis
- 2016
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Ingår i: Cell Reports. - : Cell Press. - 2211-1247. ; 16:11, s. 2928-2939
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Tidskriftsartikel (refereegranskat)abstract
- Multiple sclerosis (MS) is a chronic inflammatory disease of the CNS and has a varying disease course as well as variable response to treatment. Biomarkers may therefore aid personalized treatment. We tested whether in vitro activation of MS patient-derived CD4+ T cells could reveal potential biomarkers. The dynamic gene expression response to activation was dysregulated in patient-derived CD4+ T cells. By integrating our findings with genome-wide association studies, we constructed a highly connected MS gene module, disclosing cell activation and chemotaxis as central components. Changes in several module genes were associated with differences in protein levels, which were measurable in cerebrospinal fluid and were used to classify patients from control individuals. In addition, these measurements could predict disease activity after 2 years and distinguish low and high responders to treatment in two additional, independent cohorts. While further validation is needed in larger cohorts prior to clinical implementation, we have uncovered a set of potentially promising biomarkers.
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| 44. |
- Holmvall, Patric, 1988, et al.
(författare)
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SuperConga: An open-source framework for mesoscopic superconductivity
- 2023
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Ingår i: Applied Physics Reviews. - : AIP Publishing. - 1931-9401. ; 10:1
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Forskningsöversikt (refereegranskat)abstract
- We present SuperConga, an open-source framework for simulating equilibrium properties of unconventional and ballistic singlet superconductors, confined to two-dimensional (2D) mesoscopic grains in a perpendicular external magnetic field, at arbitrary low temperatures. It aims at being both fast and easy to use, enabling research without access to a computer cluster, and visualization in real-time with OpenGL. The core is written in C++ and CUDA, exploiting the embarrassingly parallel nature of the quasiclassical theory of superconductivity by utilizing the parallel computational power of modern graphics processing units. The framework self-consistently computes both the superconducting order-parameter and the induced vector potential and finds the current density, free energy, induced flux density, local density of states (LDOS), and the magnetic moment. A user-friendly Python frontend is provided, enabling simulation parameters to be defined via intuitive configuration files, or via the command-line interface, without requiring a deep understanding of implementation details. For example, complicated geometries can be created with relative ease. The framework ships with simple tools for analyzing and visualizing the results, including an interactive plotter for spectroscopy. An overview of the theory is presented, as well as examples showcasing the framework's capabilities and ease of use. The framework is free to download from https://gitlab.com/superconga/superconga, which also links to the extensive user manual, containing even more examples, tutorials, and guides. To demonstrate and benchmark SuperConga, we study the magnetostatics, thermodynamics, and spectroscopy of various phenomena. In particular, we study flux quantization in solenoids, vortex physics, surface Andreev bound-states, and a "phase crystal."We compare our numeric results with analytics and present experimental observables, e.g., the magnetic moment and LDOS, measurable with, for example, scanning probes, STM, and magnetometry.
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| 45. |
- Horne, Merle, et al.
(författare)
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Swedish as a [+Continuity] language : left-edge prosody and right-edge morphosyntax
- 2012
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Ingår i: Discourse and grammar : a festschrift in honor of Valéria Molnár. - 9789163704116 ; , s. 333-341
-
Bokkapitel (refereegranskat)abstract
- Abstract in UndeterminedSwedish and French avoid placing focused constituents at the left periphery of sentences. This has previously been suggested to be due to phonological factors. Here, we develop this idea and argue that the reason for avoiding focus at the left edge in these languages is the existence of syntactically related prosodic prominences in the beginning of utterances. Initial focal accents would overlap with the syntactically related accents, forcing a suboptimal prosodic structure. Further, we provide evidence for such a left-edge boundary tone in Swedish main clauses, as well as for a complementary strong tendency in Swedish to associate the right edge of sentences with focus.
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| 46. |
- Håkansson, Alexander, et al.
(författare)
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Compassion focused therapy : a transdiagnostic approach to counteract shame and self-criticism in the treatment of individuals with chronic pain and comorbid emotional problems
- 2015
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Konferensbidrag (refereegranskat)abstract
- Introduction: Chronic pain affects people worldwide. Depression and anxiety are common comorbid problems and are many times associated with pervasive problems with self-image, shame and self-criticism. Recently, Compassion Focused Therapy (CFT) has received increasing clinical and scientific interest as a means to counteract shame, self-criticism and isolation. CFT integrates influences from affective neuroscience, Buddhism, attachment theory, evolution theory and cognitive behavioral theories. The focus in CFT is on increasing individuals' ability to experience warmth, acceptance and community in relation to themselves as well as to and from others. Therefore, CFT may be a promising approach to address self-criticism and shame in chronic patients with comorbid emotional problems.Method: This study employs a Single Case Experimental Design (N=6) to examine whether a 7 week, Internet delivered, CFT can lead to increased self-compassion, reduced shame, self-criticism, depression and anxiety symptoms in patients with chronic pain and comorbid anxiety and depression.Results: The results showed treatments effects on all variables of varying magnitude.Discussion: The results add to the growing body of research that CFT affects several problem areas, and can be delivered via the Internet. While the results are encouraging, variations in treatment results and methodological restrictions indicate need for further research.
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| 47. |
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| 48. |
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| 49. |
- Håkansson, Joakim, 1975, et al.
(författare)
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Neural cell adhesion molecule-deficient beta-cell tumorigenesis results in diminished extracellular matrix molecule expression and tumour cell-matrix adhesion
- 2005
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Ingår i: Tumour Biology. - : Springer Science and Business Media LLC. - 1010-4283 .- 1423-0380. ; 26:2, s. 103-112
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Tidskriftsartikel (refereegranskat)abstract
- To understand by which mechanism neural cell adhesion molecule (N-CAM) limits beta tumour cell disaggregation and dissemination, we searched for potential downstream genes of N-CAM during beta tumour cell progression by gene expression profiling. Here, we show that N-CAM-deficient beta-cell tumorigenesis is associated with changes in the expression of genes involved in cell-matrix adhesion and cytoskeletal dynamics, biological processes known to affect the invasive and metastatic behaviour of tumour cells. The extracellular matrix (ECM) molecules emerged as the primary target, i.e. N-CAM deficiency resulted in down-regulated mRNA expression of a broad range of ECM molecules. Consistent with this result, deficient deposition of major ECM stromal components, such as fibronectin, laminin 1 and collagen IV, was observed. Moreover, N-CAM-deficient tumour cells displayed defective matrix adhesion. These results offer a potential mechanism for tumour cell disaggregation during N-CAM-deficient beta tumour cell progression. Prospective consequences of these findings for the role of N-CAM in beta tumour cell dissemination are discussed.
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| 50. |
- Håkansson, Mikael, 1957, et al.
(författare)
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Aurophilic association in endo-dicyclopentadienechlorogold(I)
- 2000
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Ingår i: Journal of Organometallic Chemistry. - 0022-328X. ; 602:1-2, s. 133-136
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Tidskriftsartikel (refereegranskat)abstract
- The complex between endo-dicyclopentadiene and gold(I) chloride has been prepared by a substitution reaction in dichloromethane, whereby carbon monoxide in dissolved [AuCl(CO)] has been displaced by the endo-dicyclopentadiene ligand. This ligand is eta(2)-bonded to gold(I) via the C=C bond in the norbornene ring. Crystallographic studies show that the [AuCl(C10H12)] moiety undergoes aurophilic association to form a [(AuCl(C10H12))(2)] dimer, in which the Au-Au distance is 3.4282(8) Angstrom.
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