| 1. |
- Abelev, Betty, et al.
(författare)
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Underlying Event measurements in pp collisions at root s=0.9 and 7 TeV with the ALICE experiment at the LHC
- 2012
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Ingår i: Journal of High Energy Physics. - 1029-8479. ; :7
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Tidskriftsartikel (refereegranskat)abstract
- We present measurements of Underlying Event observables in pp collisions at root s = 0 : 9 and 7 TeV. The analysis is performed as a function of the highest charged-particle transverse momentum p(T),L-T in the event. Different regions are defined with respect to the azimuthal direction of the leading (highest transverse momentum) track: Toward, Transverse and Away. The Toward and Away regions collect the fragmentation products of the hardest partonic interaction. The Transverse region is expected to be most sensitive to the Underlying Event activity. The study is performed with charged particles above three different p(T) thresholds: 0.15, 0.5 and 1.0 GeV/c. In the Transverse region we observe an increase in the multiplicity of a factor 2-3 between the lower and higher collision energies, depending on the track p(T) threshold considered. Data are compared to PYTHIA 6.4, PYTHIA 8.1 and PHOJET. On average, all models considered underestimate the multiplicity and summed p(T) in the Transverse region by about 10-30%.
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| 2. |
- Guzman-Parra, Jose, et al.
(författare)
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Attitudes and use of information and communication technologies in older adults with mild cognitive impairment or early stages of dementia and their caregivers : cross-sectional study
- 2020
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Ingår i: Journal of Medical Internet Research. - : JMIR Publications. - 1438-8871. ; 22:6
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Tidskriftsartikel (refereegranskat)abstract
- BACKGROUND: Information and communication technologies are promising tools to increase the quality of life of people with dementia or mild cognitive impairment and that of their caregivers. However, there are barriers to their use associated with sociodemographic factors and negative attitudes, as well as inadequate knowledge about technologies. OBJECTIVE: The aim of this study was to analyze technophilia (attitudes toward new technologies) and the use of smartphones and tablets along with associated factors in people with dementia/mild cognitive impairment and their caregivers. METHODS: Data from the first visit of the Support Monitoring and Reminder for Mild Dementia (SMART4MD) randomized multicenter clinical trial were used for this analysis. Data were obtained from two European countries, Spain and Sweden, and from three centers: Consorci Sanitari de Terrassa (Catalonia, Spain), Servicio Andaluz de Salud (Andalusia, Spain), and the Blekinge Institute of Technology (Sweden). Participants with a score between 20 and 28 in the Mini Mental State Examination, with memory problems (for more than 6 months), and who were over the age of 55 years were included in the study, along with their caregivers. The bivariate Chi square and Mann-Whitney tests, and multivariate linear and logistic regression models were used for statistical analysis. RESULTS: A total of 1086 dyads were included (N=2172). Overall, 299 (27.53%) of people with dementia/mild cognitive impairment had a diagnosis of dementia. In addition, 588 (54.14%) of people with dementia/mild cognitive impairment reported using a smartphone almost every day, and 106 (9.76%) used specific apps or software to support their memory. Among the caregivers, 839 (77.26%) used smartphones and tablets almost every day, and 181 (16.67%) used specific apps or software to support their memory. The people with dementia/mild cognitive impairment showed a lower level of technophilia in comparison to that of their caregivers after adjusting for confounders (B=0.074, P=.02) with differences in technology enthusiasm (B=0.360, P<.001), but not in technology anxiety (B=-0.042, P=.37). Technophilia was associated with lower age (B=-0.009, P=.004), male gender (B=-0.160, P<.001), higher education level (P=.01), living arrangement (living with children vs single; B=-2.538, P=.01), country of residence (Sweden vs Spain; B=0.256, P<.001), lower depression (B=-0.046, P<.001), and better health status (B=0.004, P<.001) in people with dementia/mild cognitive impairment. Among caregivers, technophilia was associated with comparable sociodemographic factors (except for living arrangement), along with a lower caregiver burden (B=-0.005, P=.04) and better quality of life (B=0.348, P<.001). CONCLUSIONS: Technophilia was associated with a better quality of life and sociodemographic variables in people with dementia/mild cognitive impairment and caregivers, suggesting potential barriers for technological interventions. People with dementia/mild cognitive impairment frequently use smartphones and tablets, but the use of specific apps or software to support memory is limited. Interventions using these technologies are needed to overcome barriers in this population related to sociodemographic characteristics and the lack of enthusiasm for new technologies. TRIAL REGISTRATION: ClinicalTrials.gov NCT03325699; https://clinicaltrials.gov/ct2/show/NCT03325699. ©Jose Guzman-Parra, Pilar Barnestein-Fonseca, Gloria Guerrero-Pertiñez, Peter Anderberg, Luis Jimenez-Fernandez, Esperanza Valero-Moreno, Jessica Marian Goodman-Casanova, Antonio Cuesta-Vargas, Maite Garolera, Maria Quintana, Rebeca I García-Betances, Evi Lemmens, Johan Sanmartin Berglund, Fermin Mayoral-Cleries.
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| 3. |
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| 4. |
- Iglesias-Vázquez, Lucía, et al.
(författare)
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Factors associated with serum ferritin levels and iron excess : results from the EPIC-EurGast study
- 2022
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Ingår i: European Journal of Nutrition. - : Springer Science and Business Media LLC. - 1436-6207 .- 1436-6215. ; 61:1, s. 101-114
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Tidskriftsartikel (refereegranskat)abstract
- Purpose: Excess iron is involved in the development of non-communicable diseases such as cancer, type 2 diabetes and cardiovascular conditions. We aimed to describe the prevalence of excess iron and its determinants in healthy European adults. Methods: Sociodemographic, lifestyle, iron status, dietary information, and HFE genotyping were obtained from controls from the nested case–control study EPIC-EurGast study. High sensitivity C-reactive protein (hsCRP) was measured to address possible systemic inflammation. Descriptive and multivariate analyses were used to assess iron status and its determinants. Results: Out of the 828 participants (median age: 58.7 years), 43% were females. Median serum ferritin and prevalence of excess iron were 143.7 µg/L and 35.2% in males, respectively, and 77 µg/L and 20% in females, both increasing with latitude across Europe. Prevalence of HFE C282Y mutation was significantly higher in Northern and Central Europe (~ 11%) than in the South (5%). Overweight/obesity, age, and daily alcohol and heme iron intake were independent determinants for iron status, with sex differences even after excluding participants with hsCRP > 5 mg/L. Obese males showed a greater consumption of alcohol, total and red meat, and heme iron, compared with those normal weight. Conclusion: Obesity, higher alcohol and heme iron consumption were the main risk factors for excess iron in males while only age was associated with iron overload in females. Weight control and promoting healthy lifestyle may help prevent iron overload, especially in obese people. Further research is needed to clarify determinants of excess iron in the healthy adult population, helping to reduce the associated comorbidities.
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| 7. |
- Kahlert, Maria, et al.
(författare)
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Harmonization is more important than experience—results of the first Nordic–Baltic diatom intercalibration exercise 2007 (stream monitoring)
- 2009
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Ingår i: Journal of Applied Phycology. - : Springer Science and Business Media LLC. - 0921-8971 .- 1573-5176. ; 21:4, s. 471-482
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Tidskriftsartikel (refereegranskat)abstract
- The goal of this study was a harmonization of diatom identification and counting among diatomists from the Scandinavian and Baltic countries to improve the comparison of diatom studies in this geographical area. An analysis of the results of 25 diatomists following the European standard EN 14407 during an intercalibration exercise showed that a high similarity was achieved by harmonization and not because of a long experience with diatoms. Sources of error were wrong calibration scales, overlooking of small taxa, especially small Navicula s.l., misidentifications (Eunotia rhomboidea was mistaken for Eunotia incisa) and unclear separation between certain taxa in the identification literature. The latter was discussed during a workshop with focus on the Achnanthes minutissima group, the separation of Fragilaria capucina var. gracilis from F. capucina var. rumpens, and Nitzschia palea var. palea from N. palea var. debilis. The exercise showed also that the Swedish standard diatom method tested here worked fine with acceptable error for the indices IPS (Indice de Polluo-sensibilité Spécifique) and ACID (ACidity Index for Diatoms) when diatomists with a low similarity (Bray–Curtis <60%) with the auditor in at least one of the samples are excluded.
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| 8. |
- Kahlert, Maria, et al.
(författare)
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Kiselalger i fem vattendrag i Ski kommun (Norge) 2012
- 2013
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Kiselalgsfloran på de undersökta lokalerna i Ski kommun i Norge indikerar en nära neutralt eller alkaliskt vatten, vilket överensstämmer med de uppgivna pH-värdena kring 7. Kråkstadelva klassificeras som måttlig ekologisk status med en tendens till sämre status, troligtvis påverkad av övergödning, organisk förorening och även sedimenterande material. Bergerbekken placeras i klassningen hög till god ekologisk status och troligtvis finns här ingen stark påverkan av övergödning. Däremot tyder den höga andelen av Achnanthidium minutissimum på förekomsten av annan störning, oklart vilken. Finstadbekken hamnar i klassen god ekologisk status, dock tyder stödindexet TDI på en stark övergödning. Det låga taxaantalet tyder även på annan störning, oklart vilken. Tussebekken och Dalselva har högre antal taxa och diversitet än de föregående lokalerna och statusklassningen visar på god ekologisk status. I Dalselva visar dock stödparametrarna en stark tendens till måttlig status pga. både övergödning och organisk förorening, vilket borde undersökas ytterligare. Observera att klassningen baseras på en enda provtagning, och värdena kan varierar mellan säsong och år, och även på olika platser beroende på påverkan. Upprepande provtagning bör säkra resultat.
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| 9. |
- Kahlert, Maria, et al.
(författare)
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Kiselalger i Norrbotten 2012 (regional miljöövervakning)
- 2013
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Kiselalgsfloran på de undersökta lokalerna i Norrbottens län indikerar hög till god ekologisk status. Två lokaler var mycket näringsfattiga (Rokån och Blåmissusjöns utlopp). Kiselalgsfloran visade inte på någon förorening. Den relativt höga andelen av deformerade skal i Rosån 2012 indikerade dock någon form av störning, oklart vilken. Rokån klassificerades enligt kiselalgssamhället som den suraste lokalen av alla som ingick i undersökningen. Även Blåmissusjön utlopssbäcken, Sangisälven, Rosån och Persöfjärden klassades som sura eller på gränsen till sura. Det borde undersökas ifall dessa lokaler är naturligt sura eller försurade.
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| 10. |
- Kahlert, Maria, et al.
(författare)
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Kiselalger i Rååns avrinningsområde 2012
- 2013
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Rapport (övrigt vetenskapligt/konstnärligt)abstract
- Kiselalgsfloran på alla de undersökta lokalerna i Rååns avrinningsområde indikerar höga närsaltshalter, en påverkan från lättnedbrytbara organiska föroreningar på lokalerna P40 och särskild P50 samt en saltpåverkan på lokalen P50. Indikationen på höga närsaltshalter stämmer väl överens med Rååns vattenkemi, som dock bara mäts på punkt P8 (Ekologgruppen 2011). Alla lokaler hade sämre ekologisk status än god och en lokal hade till och med otillfredsställande status. Kiselalgsfloran visar att pH på alla lokaler är högt året om. Flera vattendrag hade en andel deformerade skal som var högre än 1 %, vilket kan tyda på någon form av påverkan. Det är dock oklart vilken sorts påverkan det handlar om här.
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