421 results on '"Ebeling, H"'
Search Results
2. Prevalence of Autism Spectrum Disorder in 7-9-Year-Old Children in Denmark, Finland, France and Iceland: A Population-Based Registries Approach within the ASDEU Project
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Delobel-Ayoub, M., Saemundsen, E., Gissler, M., Ego, A., Moilanen, I., Ebeling, H., Rafnsson, V., Klapouszczak, D., Thorsteinsson, E., Arnaldsdóttir, K. M., Roge, B., Arnaud, C., and Schendel, D.
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We estimated autism spectrum disorder (ASD) prevalence in 7-9 year-old children in 2015 using data from three nationwide health registry systems (Denmark, Finland, Iceland) and two French population-based regional registries. Prevalence ranged from 0.48% in South-East France to 3.13% in Iceland (South-West France: 0.73%, Finland: 0.77%, Denmark: 1.26%). Male/female ratios ranged from 3.3 in Finland to 5.4 in South-West France. Between 12% (Denmark) and 39% (South-West France) of cases were diagnosed with intellectual disability. The variations in population-based ASD prevalence across four European countries with universal health care practices likely reflect variation in detection, referral and diagnosis practices and autism awareness across these areas. Using established population-based data systems is an efficient approach to monitor ASD prevalence trends over time.
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- 2020
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3. Sensory Abnormality and Quantitative Autism Traits in Children with and without Autism Spectrum Disorder in an Epidemiological Population
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Jussila, K., Junttila, M., Kielinen, M., Ebeling, H., Joskitt, L., Moilanen, I., and Mattila, M.-L
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Sensory abnormalities (SAs) are recognized features in Autism Spectrum Disorder (ASD), and a relationship between SAs and ASD traits is also suggested in general population. Our aims were to estimate the prevalence of SAs in three different settings, and to study the association between SAs and quantitative autism traits (QAT) using the Autism Spectrum Screening Questionnaire (ASSQ) and a parental questionnaire. In an epidemiological population of 8-year-old children (n = 4397), the prevalence of SAs was 8.3%, in an ASD sample (n = 28), 53.6%, and in a non-ASD sample (n = 4369), 8.0%, respectively. Tactile and auditory hypersensitivity predicted an ASD diagnosis. The ASSQ was able to differentiate children with and without SA. In conclusion, QAT level and SAs were associated in all study samples.
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- 2020
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4. Prevalence of Autism Spectrum Disorder in 7-9-Year-Old Children in Denmark, Finland, France and Iceland: A Population-Based Registries Approach Within the ASDEU Project
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Delobel-Ayoub, M., Saemundsen, E., Gissler, M., Ego, A., Moilanen, I., Ebeling, H., and Rafnsson, V.
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Pervasive developmental disorders -- Diagnosis -- Demographic aspects -- Distribution ,Company distribution practices ,Health - Abstract
We estimated autism spectrum disorder (ASD) prevalence in 7-9 year-old children in 2015 using data from three nationwide health registry systems (Denmark, Finland, Iceland) and two French population-based regional registries. Prevalence ranged from 0.48% in South-East France to 3.13% in Iceland (South-West France: 0.73%, Finland: 0.77%, Denmark: 1.26%). Male/female ratios ranged from 3.3 in Finland to 5.4 in South-West France. Between 12% (Denmark) and 39% (South-West France) of cases were diagnosed with intellectual disability. The variations in population-based ASD prevalence across four European countries with universal health care practices likely reflect variation in detection, referral and diagnosis practices and autism awareness across these areas. Using established population-based data systems is an efficient approach to monitor ASD prevalence trends over time., Author(s): M. Delobel-Ayoub [sup.1] [sup.2] [sup.3] [sup.18] , E. Saemundsen [sup.4] [sup.5] , M. Gissler [sup.6] [sup.7] [sup.8] , A. Ego [sup.9] [sup.10] , I. Moilanen [sup.11] [sup.12] , H. [...]
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- 2020
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5. Sensory Abnormality and Quantitative Autism Traits in Children With and Without Autism Spectrum Disorder in an Epidemiological Population
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Jussila, K., Junttila, M., Kielinen, M., Ebeling, H., Joskitt, L., Moilanen, I., and Mattila, M.-L.
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- 2020
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6. Absorption features in the quasar HS 1603 + 3820 II. Distance to the absorber obtained from photoionisation modelling
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Różańska, A., Nikołajuk, M., Czerny, B., Dobrzycki, A., Hryniewicz, K., Bechtold, J., and Ebeling, H.
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- 2014
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7. Physical Activity, Emotional and Behavioural Problems, Maternal Education and Self-Reported Educational Performance of Adolescents
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Kantomaa, M. T., Tammelin, T. H., Demakakos, P., Ebeling, H. E., and Taanila, A. M.
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This study examined whether physical activity, mental health and socio-economic position were associated with the overall academic performance and future educational plans of adolescents aged 15-16 years. We used a sample of 7002 boys and girls from the Northern Finland Birth Cohort 1986. Data were collected by a postal enquiry in 2001-02. Multivariable logistic regression models were estimated and adjusted for family structure and all variables in the models. In the fully adjusted models, higher levels of physical activity and high parental socio-economic position were associated with higher overall academic performance and future plans for higher education. High scoring on behavioural problems was related to lower overall academic performance and poorer future academic plans. In summary, a higher level of physical activity, fewer behavioural problems and higher socio-economic position were independently associated with high self-perceived overall academic performance and plans for higher education among adolescents. The interrelations of these factors and the positive relationship between physical activity, mental health and school outcomes provide a context of critical importance for future research, intervention programming and policy directed at improving the educational attainment of adolescents.
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- 2010
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8. Is Prenatal Alcohol Exposure Related to Inattention and Hyperactivity Symptoms in Children? Disentangling the Effects of Social Adversity
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Rodriguez, A., Olsen, J., Kotimaa, A. J., Kaakinen, M., Moilanen, I., Henriksen, T. B., Linnet, K. M., Miettunen, J., Obel, C., Taanila, A., Ebeling, H., and Jarvelin, M. R.
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Background: Studies concerning whether exposure to low levels of maternal alcohol consumption during fetal development is related to child inattention and hyperactivity symptoms have shown conflicting results. We examine the contribution of covariates related to social adversity to resolve some inconsistencies in the extant research by conducting parallel analyses of three cohorts with varying alcohol consumption and attitudes towards alcohol use. Methods: We compare three population-based pregnancy--offspring cohorts within the Nordic Network on ADHD from Denmark and Finland. Prenatal data were gathered via self-report during pregnancy and birth outcomes were abstracted from medical charts. A total of 21,678 reports concerning inattention and hyperactivity symptoms in children were available from the Strengths and Difficulties Questionnaire or the Rutter Scale completed by parents and/or teachers. Results: Drinking patterns differed cross-nationally. Women who had at least some social adversity (young, low education, or being single) were more likely to drink than those better off in the Finnish cohort, but the opposite was true for the Danish cohorts. Prenatal alcohol exposure was not related to risk for a high inattention-hyperactivity symptom score in children across cohorts after adjustment for covariates. In contrast, maternal smoking and social adversity during pregnancy were independently and consistently associated with an increase in risk of child symptoms. Conclusions: Low doses of alcohol consumption during pregnancy were not related to child inattention/hyperactivity symptoms once social adversity and smoking were taken into account.
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- 2009
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9. Childhood chronic condition and subsequent self-reported internalizing and externalizing problems in adolescence:a birth cohort study
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Määttä, H. (Heidi), Honkanen, M. (Meri), Hurtig, T. (Tuula), Taanila, A. (Anja), Ebeling, H. (Hanna), and Koivumaa-Honkanen, H. (Heli)
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Chronic condition ,Internalizing problems ,Childhood ,Externalizing problems ,Longitudinal study ,Adolescence - Abstract
Chronic conditions are common in childhood. We investigated the associations of childhood chronic conditions reported by parents with subsequent self-reported internalizing and externalizing problems in adolescence. A sample of 6290 children (3142 boys and 3148 girls) with data on chronic condition reported by parents both at 7 and at 16 years of age was obtained from the Northern Finland Birth Cohort 1986 (NFBC 1986), which is a longitudinal 1-year birth cohort (n = 9432) from an unselected, regionally defined population. Internalizing and externalizing problems were measured at 8 years of age with Rutter Children’s Behavioral Questionnaire by teachers and at 16 years of age with Youth Self-Report by adolescents. When studying the effects of history of chronic conditions on these problems at 16 years of age, childhood internalizing and externalizing problems and social relations were adjusted. A history of chronic condition predicted subsequent somatic complaints among all adolescents. Early-onset chronic conditions were related to subsequent externalizing (OR 1.35; 1.02–1.79) and attention problems (OR 1.33; 1.01–1.75) and later onset of chronic conditions with internalizing (OR 1.49; 1.22–1.82) and thought problems (OR 1.50; 1.18–1.92). The effect was specific for sex and the type of chronic condition. Conclusion: Childhood chronic conditions predicted internalizing and externalizing problems in adolescence. To prevent poor mental health trajectories, children with chronic conditions during their growth to adolescence need early support and long-term monitoring.
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- 2022
10. Is a harsh childhood growth environment reflected in parental images and emotional distress in adulthood?
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Kiviniemi, A. A. (Annukka A. I.), Koivumaa-Honkanen, H. J. (Heli-Tuulie J.), Heikkinen, H. P. (Hanna P.), Moilanen, I. K. (Irma K.), and Ebeling, H. E. (Hanna E.)
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Emotional distress/ anxiety/depression ,Parent–child relationship ,Parental strictness ,Physical/corporal punishment ,Parental images - Abstract
Harsh parenting can predispose a child to emotional distress, whereas a supportive childhood environment furthers later subjective well-being. We investigated whether the mother’s self-reported assessment of her strictness and the adult offspring’s recollections of the disciplinary methods of their parents are reflected in the adult offspring’s recalled parental images and current emotional distress, anxiety and depression as assessed by the Hopkins Symptom Check List (HSCL-25). Further, we investigated whether the offspring’s parental images were also associated with the HSCL-25 scores. Data was collected from northern Finland. The mothers responded to a questionnaire when their child was seven years old (N = 354) and the adult offspring responded at age 28–29 (N = 337). The mother’s assessment of her own strictness was associated both with the adult offspring’s dominating images of their parents and their current emotional distress, anxiety and depression. The offspring’s recollections of restriction and corporal punishment were associated with dominating parental images, and these images further with current emotional distress, anxiety and depression of the offspring. Correspondingly, the offspring’s recollections of parental dialogic discipline were associated with supportive and sociable parental images, and recalled paternal dialogic discipline was associated with lower current emotional distress, particularly in the female offspring. In conclusion, harsh parenting was associated with dominating parental images, which in turn were associated with emotional distress in adulthood. Dialogic discipline and the father’s role in parenting were emphasized in the offspring’s well-being, but more research is needed to assess the importance of paternity for the offspring’s subjective well-being.
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- 2022
11. Physical activity, emotional and behavioural problems, maternal education and self-reported educational performance of adolescents
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Kantomaa, M. T., Tammelin, T. H., Demakakos, P., Ebeling, H. E., and Taanila, A. M.
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- 2010
12. Flash Spectroscopy: Emission Lines From the Ionized Circumstellar Material Around 10-Day-Old Type II Supernovae
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Khazov, D, Yaron, O, Gal-Yam, A, Manulis, I, Rubin, A, Kulkarni, S. R, Arcavi, I, Kasliwal, M. M, Ofek, E. O, Cao, Y, Perley, D, Sollerman, J, Horesh, A, Sullivan, M, Filippenko, V, Nugent, P. E, Howell, D. A, Cenko, S. B, Silverman, J. M, Ebeling, H, Taddia, F, Johansson, J, Laher, R. R, Surace, J, Rebbapragada, U. D, Wozniak, P. R, and Matheson, T
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Astrophysics - Abstract
Supernovae (SNe) embedded in dense circumstellar material (CSM) may show prominent emission lines in their early-time spectra (< or =10 days after the explosion), owing to recombination of the CSM ionized by the shock-breakout flash. From such spectra ("flash spectroscopy"), we can measure various physical properties of the CSM, as well as the mass-loss rate of the progenitor during the year prior to its explosion. Searching through the Palomar Transient Factory (PTF and iPTF) SN spectroscopy databases from 2009 through 2014, we found 12 SNe II showing flash-ionized (FI) signatures in their first spectra. All are younger than 10 days. These events constitute 14% of all 84 SNe in our sample having a spectrum within 10 days from explosion, and 18% of SNe II observed at ages <5 days, thereby setting lower limits on the fraction of FI events. We classified as "blue/featureless" (BF) those events having a first spectrum that is similar to that of a blackbody, without any emission or absorption signatures. It is possible that some BF events had FI signatures at an earlier phase than observed, or that they lack dense CSM around the progenitor. Within 2 days after explosion, 8 out of 11 SNe in our sample are either BF events or show FI signatures. Interestingly, we found that 19 out of 21 SNe brighter than an absolute magnitude M(sub R) = −18.2 belong to the FI or BF groups, and that all FI events peaked above M(sub R) = −17.6 mag, significantly brighter than average SNe II.
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- 2016
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13. The Origin of the Corinthian Capital
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Ebeling, H. L.
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- 1924
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14. Early vocabulary development:relationships with prelinguistic skills and early social-emotional/behavioral problems and competencies
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Rantalainen, K. (Katariina), Paavola-Ruotsalainen, L. (Leila), Alakortes, J. (Jaana), Carter, A. S. (Alice S.), Ebeling, H. E. (Hanna E.), and Kunnari, S. (Sari)
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Prelinguistic development ,Late talkers ,Early vocabulary ,Social-emotional development - Abstract
The aim of this longitudinal study was to investigate early vocabulary development and its relationships with prelinguistic communication skills and social-emotional/behavioral (SEB) problems and competencies. The participants were 58 healthy Finnish-speaking children (30 girls, 28 boys). First, the concurrent relationships were investigated at the age of 18 months. Second, the relationships between prelinguistic communication skills and SEB problems and competencies at 18 months, and subsequent vocabulary scores at 24 and 30 months, were examined. Parental reports on early vocabulary (MacArthur Communicative Developmental Inventories; MCDI), prelinguistic communication skills (The Infant-Toddler Checklist of the Communication and Symbolic Behavior Scales Developmental Profile; ITC), SEB problems and competencies (Brief Infant-Toddler Social and Emotional Assessment; BITSEA) were gathered. Compared to boys, girls scored significantly higher on ITC Speech Composite at 18 months and expressive vocabulary measures at 18, 24, and 30 months. Vocabulary, as well as prelinguistic communication measures, correlated with SEB competencies at 18 months. Furthermore, vocabulary, as well as ITC Symbolic Composite and Total Score, correlated negatively with externalizing problem and SEB Total Problem scores. With regard to subsequent vocabulary development, all of the prelinguistic communication measures at 18 months correlated with vocabulary at 24 and 30 months. However, when accounted for gender and earlier vocabulary, only the associations with ITC Speech Composite and Total Score at 24 months remained significant. SEB Competencies at 18 months correlated positively, while externalizing problems at 18 months correlated negatively with vocabulary at 24 and 30 months, however, these associations did not remain significant, when accounted for gender and earlier vocabulary.
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- 2021
15. VizieR Online Data Catalog: 12 massive lensing clusters MUSE observations (Richard+, 2021)
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Richard, J., Claeyssens, A., Lagattuta, D., Guaita, L., Bauer, F. E., Pello, R., Carton, D., Bacon, R., Soucail, G., Prieto Lyon, G., Kneib, J. -P., Mahler, G., Clement, B., Mercier, W., Variu, A., Tamone, A., Ebeling, H., Schmidt, K. B., Nanayakkara, T., Maseda, M., Weilbacher, P. M., Bouché, N., Bouwens, R. J., Wisotzki, L., La Vieuville, G., Martinez, J., Patricio, V., Service de réanimation médicale [CHU Rouen], Hôpital Charles Nicolle [Rouen], CHU Rouen, Normandie Université (NU)-Normandie Université (NU)-CHU Rouen, Normandie Université (NU)-Normandie Université (NU)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU), Groupe de Recherche sur le Handicap Ventilatoire (GRHV), Normandie Université (NU)-Institute for Research and Innovation in Biomedicine (IRIB), Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS)-Université de Rouen Normandie (UNIROUEN), Normandie Université (NU)-Institut National de la Santé et de la Recherche Médicale (INSERM)-Centre National de la Recherche Scientifique (CNRS), Universidad Diego Portales [Santiago] (UDP), Departamento de Astronomía y Astrofísica [Santiago], Pontificia Universidad Católica de Chile (UC), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Institute for Astronomy [Honolulu], University of Hawai‘i [Mānoa] (UHM), Deutsches Zentrum für Luft- und Raumfahrt (DLR), Astrophysikalisches Institut Potsdam (AIP), and Services communs OMP (UMS 831)
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Morphology ,[PHYS.ASTR.CO]Physics [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] ,Redshifts ,Clusters: galaxy ,Photometry: HST ,ComputingMilieux_MISCELLANEOUS ,Spectroscopy - Abstract
International audience
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- 2021
16. A psychoeducational mental health promotion intervention in a comprehensive schools:recognising problems and reducing stigma
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Onnela, A. (Anna), Hurtig, T. (Tuula), and Ebeling, H. (Hanna)
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psychoeducation ,school nursing ,school health ,adolescent health ,mental health promotion - Abstract
Objective: Adolescence is a vulnerable age for emerging mental health problems, but also a time at which the foundations for a healthy lifestyle are established. Attitudes towards mental health problems and the ability to recognise them can be affected at this age. The aim of this study was to describe a psychoeducative intervention aimed at increasing knowledge of mental health problems and decreasing the stigma of mental health disorders among eighth-grade students in Finland. Design: Mixed-methods exploration of how a universal psychoeducation delivered in the classroom can affect attitudes towards, and recognition of, mental health disorders and how young people perceive the psychoeducation received. Setting: The study involved 162 eighth-grade students in two comprehensive schools in Finland. Method: The intervention consisted of four lessons on the topics of anxiety, eating disorders, conduct disorder, and depression and substance use. Results: Students in both the intervention and non-intervention groups recognised the symptoms of mental health disorders well before and after the intervention, and the intervention improved boys’ ability to recognise conduct disorder. Following the intervention, students saw mental health disorders as real medical conditions. Students experienced the intervention as beneficial, increasing their knowledge, understanding and open-mindedness with regards to mental health. Conclusions: Mental health promotion interventions have the goal of increasing the ability of individuals to understand mental health issues and engage in self-care of mental health. Providing mental health promotion interventions to young people has the potential to increase knowledge and skills in maintaining a healthy lifestyle in adulthood.
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- 2021
17. Mental health promotion in comprehensive schools
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Onnela, A. M., Vuokila-Oikkonen, P., Hurtig, T., and Ebeling, H.
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- 2014
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18. Longitudinal associations between childhood and adulthood externalizing and internalizing psychopathology and adolescent substance use
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Miettunen, J., Murray, G. K., Jones, P. B., Mäki, P., Ebeling, H., Taanila, A., Joukamaa, M., Savolainen, J., Törmänen, S., Järvelin, M. -R., Veijola, J., and Moilanen, I.
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- 2014
19. Targeting a Company's Real Core Competencies
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Snyder, Amy V. and Ebeling, H. William, Jr.
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- 1992
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20. Disruptive behaviour disorder with and without attention deficit hyperactivity disorder is a risk of psychiatric hospitalization
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Nordström, T, Hurtig, T, Moilanen, I, Taanila, A, and Ebeling, H
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- 2013
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21. Processing of pragmatic communication in ASD:a video-based brain imaging study
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Kotila, A. (Aija), Hyvärinen, A. (Aapo), Mäkinen, L. (Leena), Leinonen, E. (Eeva), Hurtig, T. (Tuula), Ebeling, H. (Hanna), Korhonen, V. (Vesa), Kiviniemi, V. J. (Vesa J.), and Loukusa, S. (Soile)
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Social and pragmatic difficulties in autism spectrum disorder (ASD) are widely recognized, although their underlying neural level processing is not well understood. The aim of this study was to examine the activity of the brain network components linked to social and pragmatic understanding in order to reveal whether complex socio-pragmatic events evoke differences in brain activity between the ASD and control groups. Nineteen young adults (mean age 23.6 years) with ASD and 19 controls (mean age 22.7 years) were recruited for the study. The stimulus data consisted of video clips showing complex social events that demanded processing of pragmatic communication. In the analysis, the functional magnetic resonance imaging signal responses of the selected brain network components linked to social and pragmatic information processing were compared. Although the processing of the young adults with ASD was similar to that of the control group during the majority of the social scenes, differences between the groups were found in the activity of the social brain network components when the participants were observing situations with concurrent verbal and non-verbal communication events. The results suggest that the ASD group had challenges in processing concurrent multimodal cues in complex pragmatic communication situations.
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- 2020
22. Dynamic lag analysis reveals atypical brain information flow in autism spectrum disorder
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Raatikainen, V. (Ville), Korhonen, V. (Vesa), Borchardt, V. (Viola), Huotari, N. (Niko), Helakari, H. (Heta), Kananen, J. (Janne), Raitamaa, L. (Lauri), Joskitt, L. (Leena), Loukusa, S. (Soile), Hurtig, T. (Tuula), Ebeling, H. (Hanna), Uddin, L. Q. (Lucina Q.), and Kiviniemi, V. (Vesa)
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lag pattern ,MREG ,resting state fMRI ,dynamic lag analysis ,ASD ,human brain - Abstract
This study investigated whole‐brain dynamic lag pattern variations between neurotypical (NT) individuals and individuals with autism spectrum disorder (ASD) by applying a novel technique called dynamic lag analysis (DLA). The use of 3D magnetic resonance encephalography data with repetition time = 100 msec enables highly accurate analysis of the spread of activity between brain networks. Sixteen resting‐state networks (RSNs) with the highest spatial correlation between NT individuals (n = 20) and individuals with ASD (n = 20) were analyzed. The dynamic lag pattern variation between each RSN pair was investigated using DLA, which measures time lag variation between each RSN pair combination and statistically defines how these lag patterns are altered between ASD and NT groups. DLA analyses indicated that 10.8% of the 120 RSN pairs had statistically significant (P‐value
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- 2020
23. Elevated hypothalamic/midbrain serotonin (monoamine) transporter availability in depressive drug-naive children and adolescents
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Dahlström, M, Ahonen, A, Ebeling, H, Torniainen, P, Heikkilä, J, and Moilanen, I
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- 2000
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24. Hubble Space Telescope Hx Imaging of Star-forming Galaxies at z approximately equal to 1-1.5: Evolution in the Size and Luminosity of Giant H II Regions
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Livermore, R. C, Jones, T, Richard, J, Bower, R. G, Ellis, R. S, Swinbank, A. M, Rigby, J. R, Smail, Ian, Arribas, S, Rodriguez-Zaurin, J, Colina, L, Ebeling, H, and Crain, R. A
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Astronomy - Abstract
We present Hubble Space Telescope/Wide Field Camera 3 narrow-band imaging of the Hα emission in a sample of eight gravitationally lensed galaxies at z = 1-1.5. The magnification caused by the foreground clusters enables us to obtain a median source plane spatial resolution of 360 pc, as well as providing magnifications in flux ranging from approximately 10× to approximately 50×. This enables us to identify resolved star-forming HII regions at this epoch and therefore study their Hα luminosity distributions for comparisons with equivalent samples at z approximately 2 and in the local Universe. We find evolution in the both luminosity and surface brightness of HII regions with redshift. The distribution of clump properties can be quantified with an HII region luminosity function, which can be fit by a power law with an exponential break at some cut-off, and we find that the cut-off evolves with redshift. We therefore conclude that 'clumpy' galaxies are seen at high redshift because of the evolution of the cut-off mass; the galaxies themselves follow similar scaling relations to those at z = 0, but their HII regions are larger and brighter and thus appear as clumps which dominate the morphology of the galaxy. A simple theoretical argument based on gas collapsing on scales of the Jeans mass in a marginally unstable disc shows that the clumpy morphologies of high-z galaxies are driven by the competing effects of higher gas fractions causing perturbations on larger scales, partially compensated by higher epicyclic frequencies which stabilize the disc.
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- 2013
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25. Are twins’ behavioural/emotional problems different from singletons’?
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Moilanen, I., Linna, S. L., Ebeling, H., Kumpulainen, K., Tamminen, T., Piha, J., and Almqvist, F.
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- 1999
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26. Smoking and drinking habits in adolescence — Links with psychiatric disturbance at the age of 8 years
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Ebeling, H., Moilanen, I., Linna, S. L., Tirkkonen, T., Ebeling, T., Piha, J., Kumpulainen, K., Räsänen, E., Tamminen, T., and Almqvist, F.
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- 1999
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27. Psychiatric symptoms in children with intellectual disability
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Linna, S. L., Moilanen, I., Ebeling, H., Piha, J., Kumpulainen, K., Tamminen, T., and Almqvist, F.
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- 1999
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28. Is prenatal alcohol exposure related to inattention and hyperactivity symptoms in children? Disentangling the effects of social adversity
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Rodriguez, A., Olsen, J., Kotimaa, A. J., Kaakinen, M., Moilanen, I., Henriksen, T. B., Linnet, K. M., Miettunen, J., Obel, C., Taanila, A., Ebeling, H., and Järvelin, M. R.
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- 2009
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29. Neural processing of dynamic happy and fearful facial expressions in adolescents
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Rahko, J, Paakki, J J, Ebeling, H, Hurtig, T, Jansson-Verkasalo, E, Remes, J, Kätsyri, J, Kuusikko, S, Mattila, M L, Moilanen, I, Nikkinen, J, Pauls, D, Sams, M, Starck, T, Tervonen, O, and Kiviniemi, V
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- 2009
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30. extreme case of galaxy and cluster co-evolution at z = 0.7.
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Ebeling, H, Richard, J, Smail, I, Edge, A C, Koekemoer, A M, and Zalesky, L
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GALAXY clusters , *COEVOLUTION , *GAS flow , *ELECTROMAGNETIC spectrum , *SPACE telescopes , *DYNAMICAL systems - Abstract
We report the discovery of eMACS J0252.4−2100 (eMACS J0252), a massive and highly evolved galaxy cluster at z = 0.703. Our analysis of Hubble Space Telescope imaging and VLT/MUSE and Keck/DEIMOS spectroscopy of the system finds a high-velocity dispersion of 1020 |$^{+180}_{-190}$| km s−1 and a high (if tentative) X-ray luminosity of (1.2 ± 0.4) × 1045 erg s−1 (0.1–2.4 keV). As extreme is the system's brightest cluster galaxy, a giant cD galaxy that forms stars at a rate of between 85 and 300 M⊙ yr−1 and features an extended halo of diffuse [O ii ] emission, as well as evidence of dust. Its most remarkable properties, however, are an exceptionally high ellipticity and a radially symmetric flow of gas in the surrounding intracluster medium, potential direct kinematic evidence of a cooling flow. A strong-lensing analysis, anchored by two multiple-image systems with spectroscopic redshifts, finds the best lens model to consist of a single cluster-scale halo with a total mass of (1.9 ± 0.1) × 1014 M⊙ within 250 kpc of the cluster core and, again, an extraordinarily high ellipticity of e = 0.8. Although further, in-depth studies across the electromagnetic spectrum (especially in the X-ray regime) are needed to conclusively determine the dynamical state of the system, the properties established so far suggest that eMACS J0252 must have already been highly evolved well before z ∼ 1, making it a prime target to constrain the physical mechanisms and history of the co-evolution or dark-matter haloes and baryons in the era of cluster formation. [ABSTRACT FROM AUTHOR]
- Published
- 2021
- Full Text
- View/download PDF
31. A New Measurement of the Bulk Flow of X-Ray Luminous Clusters of Galaxies
- Author
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Kashlinsky, A, Atrio-Barandela, F, Ebeling, H, Edge, A, and Kocevski, D
- Subjects
Astrophysics - Abstract
We present new measurements of the large-scale bulk flows of galaxy clusters based on five-year WMAP data and a significantly expanded X-ray cluster catalog. Our method probes the flow via measurements of the kinematic Sunyaev-Zel'dovich (SZ) effect produced by the hot gas in moving clusters. It computes the dipole in the cosmic microwave background data at cluster pixels, which preserves the SZ component while integrating down other contributions. Our improved catalog of over 1000 clusters enables us to further investigate possible systematic effects and, thanks to a higher median cluster redshift, allows us to measure the bulk flow to larger scales. We present a corrected error treatment and demonstrate that the more X-ray luminous clusters, while fewer in number, have much larger optical depth, resulting in a higher dipole and thus a more accurate flow measurement. This results in the observed correlation of the dipole derived at the aperture of zero monopole with the monopole measured over the cluster central regions. This correlation is expected if the dipole is produced by the SZ effect and cannot be caused by unidentified systematics (or primary cosmic microwave background anisotropies). We measure that the flow is consistent with approximately constant velocity out to at least [similar, equals]800 Mpc. The significance of the measured signal peaks around 500 h -1 70 Mpc, most likely because the contribution from more distant clusters becomes progressively more diluted by the WMAP beam. However, at present, we cannot rule out that these more distant clusters simply contribute less to the overall motion.
- Published
- 2010
- Full Text
- View/download PDF
32. Maternal adiposity prior to pregnancy is associated with ADHD symptoms in offspring: evidence from three prospective pregnancy cohorts
- Author
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Rodriguez, A, Miettunen, J, Henriksen, T B, Olsen, J, Obel, C, Taanila, A, Ebeling, H, Linnet, K M, Moilanen, I, and Järvelin, M-R
- Published
- 2008
- Full Text
- View/download PDF
33. Quantifying the suppression of the (un)-obscured star formation in galaxy cluster cores at 0.2 less than or similar to z less than or similar to 0.9
- Author
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Rodriguez-Munoz, L., Rodighiero, G., Mancini, C., Perez-Gonzalez, P. G., Rawle, T. D., Egami, E., Mercurio, A., Rosati, P., Puglisi, A., Franceschini, A., Balestra, I., Baronchelli, I., Biviano, A., Ebeling, H., Edge, A. C., Enia, A. F. M., Grillo, C., Haines, C. P., Iani, E., Jones, T., Nonino, M., Valtchanov, I., Vulcani, B., and Zemcov, M.
- Subjects
clusters: general [galaxies] ,star formation [galaxies] ,evolution [galaxies] ,catalogues - Published
- 2019
34. Autistic adult diagnosis, co-occurring conditions and interventions: good practices, services gaps, areas for improvement
- Author
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Scattoni, Ml, Micai, M, Ciaramella, A, Fulceri, F, Fatta, Lm, Salvitti, T, Poustka, L, Diehm, R, Iskrov, G, Stefanov, R, Guillon, Q, Rogé, B, Staines, A, Sweeny, Mr, Boilson, Am, Leósdóttir, T, Saemundsen, E, Moilanen, I, Ebeling, H, Yliherva, A, Gissler, M, Parviainen, T, Tani, P, Kawa, R, Vicente, A, Rasga, C, Budisteanu, M, Dale, I, Povey, C, Flores, N, Jenaro, C, Monroy, Ml, Primo, Pg, Charman, T, Cramer, S, Kloster, Wc, Posada, M, and Schendel, D.
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xx - Published
- 2019
35. Brain response to facial expressions in adults with adolescent ADHD
- Author
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Lindholm, P. (Päivi), Lieslehto, J. (Johannes), Nikkinen, J. (Juha), Moilanen, I. (Irma), Hurtig, T. (Tuula), Veijola, J. (Juha), Miettunen, J. (Jouko), Kiviniemi, V. (Vesa), and Ebeling, H. (Hanna)
- Subjects
emotion recognition ,fMRI ,ADHD ,facial expressions - Abstract
The symptoms of ADHD tend to have continuity to adulthood even though the diagnostic criteria were no longer fulfilled. The aim of our study was to find out possible differences in BOLD signal in the face-processing network between adults with previous ADHD (pADHD, n = 23) and controls (n = 29) from the same birth cohort when viewing dynamic facial expressions. The brain imaging was performed using a General Electric Signa 1.5 Tesla HDX. Dynamic facial expression stimuli included happy and fearful expressions. The pADHD group demonstrated elevated activity in the left parietal area during fearful facial expression. The Network Based Statistics including multiple areas demonstrated higher functional connectivity in attention related network during visual exposure to happy faces in the pADHD group. Conclusions: We found differences in brain responses to facial emotional expressions in individuals with previous ADHD compared to control group in a number of brain regions including areas linked to processing of facial emotional expressions and attention. This might indicate that although these individuals no longer fulfill the ADHD diagnosis, they exhibit overactive network properties affecting facial processing.
- Published
- 2019
36. Quantifying the suppression of the (un)-obscured star formation in galaxy cluster cores at 0.2$\lesssim$$z$$\lesssim$0.9
- Author
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Rodr��guez-Mu��oz, L., Rodighiero, G., Mancini, C., P��rez-Gonz��lez, P. G., Rawle, T. D., Egami, E., Mercurio, A., Rosati, P., Puglisi, A., Franceschini, A., Balestra, I., Baronchelli, I., Biviano, A., Ebeling, H., Edge, A. C., Enia, A. F. M., Grillo, C., Haines, C. P., Iani, E., Jones, T., Nonino, M., Valtchanov, I., Vulcani, B., and Zemcov, M.
- Subjects
Astrophysics of Galaxies (astro-ph.GA) ,FOS: Physical sciences ,Astrophysics::Solar and Stellar Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics - Astrophysics of Galaxies ,Astrophysics::Galaxy Astrophysics - Abstract
We quantify the star formation (SF) in the inner cores ($\mathcal{R}$/$R_{200}$$\leq$0.3) of 24 massive galaxy clusters at 0.2$\lesssim$$z$$\lesssim$0.9 observed by the $Herschel$ Lensing Survey and the Cluster Lensing and Supernova survey with $Hubble$. These programmes, covering the rest-frame ultraviolet to far-infrared regimes, allow us to accurately characterize stellar mass-limited ($\mathcal{M}_{*}$$>$$10^{10}$ $M_{\odot}$) samples of star-forming cluster members (not)-detected in the mid- and/or far-infrared. We release the catalogues with the photometry, photometric redshifts, and physical properties of these samples. We also quantify the SF displayed by comparable field samples from the Cosmic Assembly Near-infrared Deep Extragalactic Legacy Survey. We find that in intermediate-$z$ cluster cores, the SF activity is suppressed with respect the field in terms of both the fraction ($\mathcal{F}$) of star-forming galaxies (SFG) and the rate at which they form stars ($\mathcal{SFR}$ and $s\mathcal{SFR} = \mathcal{SFR}/\mathcal{M}_{*}$). On average, the $\mathcal{F}$ of SFGs is a factor $\sim$$2$ smaller in cluster cores than in the field. Furthermore, SFGs present average $\mathcal{SFR}$ and $s\mathcal{SFR}$ typically $\sim$0.3 dex smaller in the clusters than in the field along the whole redshift range probed. Our results favour long time-scale quenching physical processes as the main driver of SF suppression in the inner cores of clusters since $z$$\sim$0.9, with shorter time-scale processes being very likely responsible for a fraction of the missing SFG population., 34 pages, 13 figures, 15 tables; accepted for publication in MNRAS
- Published
- 2018
37. The Evolution of the Cluster X-ray Scaling Relations in the Wide Angle ROSAT Pointed Survey Sample at 0.6 < z < 1.0
- Author
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Maughan, B. J, Jones, L. R, Ebeling, H, and Scharf, C
- Subjects
Astrophysics - Abstract
The X-ray properties of a sample of 11 high-redshift (0.6 < z < 1 .O) clusters observed with Chardm and/or XMM-Newton are used to investigate the evolution of the cluster scaling relations. The observed evolution in the normalization of the L-T, M-T, M(sub 2)-T and M-L relations is consistent with simple self-similar predictions, in which the properties of clusters reflect the properties of the Universe at their redshift of observation. Under the assumption that the model of self-similar evolution is correct and that the local systems formed via a single spherical collapse, the high-redshift L-T relation is consistent with the high-z clusters having virialized at a significantly higher redshift than the local systems. The data are also consistent with the more realistic scenario of clusters forming via the continuous accretion of material. The slope of the L-T relation at high redshift (B = 3.32 +/- 0.37) is consistent with the local relation, and significantly steeper than the self-similar prediction of B = 2. This suggests that the same non-gravitational processes are responsible for steepening the local and high-z relations, possibly occurring universally at z is approximately greater than 1 or in the early stages of the cluster formation, prior to their observation. The properties of the intracluster medium at high redshift are found to be similar to those in the local Universe. The mean surface-brightness profile slope for the sample is Beta = 0.66 +/- 0.05, the mean gas mass fractions within R(sub 2500(z)) and R(200(z)) are 0.069 +/- 0.012 and 0.11 +/- 0.02, respectively, and the mean metallicity of the sample is 0.28 +/- 0.11 Z(sub solar).
- Published
- 2006
- Full Text
- View/download PDF
38. Is a large family a protective factor against behavioural and emotional problems at the age of 8 years?
- Author
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Taanila, A, Ebeling, H, Kotimaa, A, Moilanen, I, and Järvelin, M-R
- Published
- 2004
39. Total plasma L-tryptophan, free L-tryptophan and competing amino acid levels in a homicidal male adolescent with conduct disorder
- Author
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Virkkunen, M., Ebeling, H., Moilanen, I., Tani, P., Pennanen, S., Liesivuori, J., and Tiihonen, J.
- Published
- 2003
40. Livy and Polybius: Their Style and Methods of Historical Composition
- Author
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Ebeling, H. L.
- Published
- 1907
- Full Text
- View/download PDF
41. Sunyaev-Zeldovich Effect Imaging of MACS Galaxy Clusters at z greater than 0.5
- Author
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Laroque, S. J, Joy, M, Carlstrom, J. E, Ebeling, H, Bonamente, M, Dawson, K. S, Edge, A, Holzapfel, W. L, Miller, A. D, Nagai, D, and Six, N. Frank
- Subjects
Astronomy - Abstract
We present 30 GHz interferometric SZE measurements of a redshift limited, X-ray selected cluster sample from the Massive Cluster Survey (MACS). All eight of the high redshift (z.0.5, dec greater than -15) galaxy clusters were detected. Additional observations were made at 4.8 GHz with the Very Large Array to help constrain the amount of point source contamination to the SZE decrements. From SZE data alone, we derive electron temperatures in the range 5.5-18.5 keV and total masses between 1.5 and 2.6 x 10 circumflex 14 M_sun within a 65 arcsecond radius for the eight clusters. Six of the clusters are MACS discoveries, while two (C10016+1609 and MS 0451.6-0305) were detected by previous X-ray observations and have been recently observed with the Chandra observatory. The X-ray derived temperatures and masses for Cl0016+ 1609 and MS 0451.6-0305 are in good agreement with the SZE-derived values. Strong detections of the SZE signal in this sample of MACS objects confirms that they are hot, massive clusters.
- Published
- 2002
42. Social-emotional/behavioural problems and competencies in toddlers:relationships with early vocabulary development
- Author
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Paavola-Ruotsalainen, L. (Leila), Rantalainen, K. (Katariina), Alakortes, J. (Jaana), Carter, A. C. (Alice C.), Ebeling, H. E. (Hanna E.), and Kunnari, S. (Sari)
- Subjects
receptive vocabulary ,expressive vocabulary ,social-emotional development ,individual variation - Abstract
This longitudinal study aimed at showing the effect of early social-emotional/behavioural problems and competencies on vocabulary development in toddlers. The participants were 60 native Finnish-speaking healthy children (30 boys and 30 girls). Parental reports on the Brief Infant-Toddler Social and Emotional Assessment (BITSEA) were gathered at the children’s age of 18 months. The Problem Total and Competence Total, as well as externalizing, internalizing and dysregulation problem domain, scores were calculated. Vocabulary development was assessed by a certified speech and language therapist at ages 24 and 30 months using the Receptive and Expressive One-Word Picture Vocabulary Tests (ROWPVT-4 and EOWPVT-4). Compared to boys, girls obtained higher Competence Total scores and scored considerably higher in all the vocabulary measures. With regard to the relationships between early social-emotional/behavioural problems and vocabulary measures, Problem Total scores correlated negatively with receptive vocabulary scores at 24 months and expressive vocabulary scores at 30 months. Further analyses indicated that particularly externalizing problems were associated with slower vocabulary development. By contrast, Competence Total scores correlated positively with expressive vocabulary at 30 months. The same analyses were carried out separately for boys and girls. Mostly, the separate findings were in line with the results for the whole group of children.
- Published
- 2018
43. Inter-twin and Parent-twin Relationships and Mental Health
- Author
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Trias, T, Ebeling, H, Penninkilampi-Kerola, V, and Moilanen, I
- Published
- 2007
44. The WARPS survey for faint clusters of galaxies
- Author
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Jones, L. R, Scharf, C. A, Perlman, E, Ebeling, H, Wegner, G, and Malkan, M
- Subjects
Astronomy - Abstract
The wide angle Rosat pointed survey (WARPS) of clusters is based on the Rosat position sensitive proportional counter (PSPC) archive of pointed observations. It includes extended X-ray sources and point-like X-ray sources with non-stellar optical counterparts. It was designed to minimize the selection effects while covering a large area of the sky. The purposes of the survey were to measure the low luminosity, high redshift, X-ray luminosity function of clusters and groups and to investigate cluster morphologies and unusual systems.
- Published
- 1996
45. Molecular gas properties of a lensed star‐forming galaxy at z similar to 3.6: a case study
- Author
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Dessauges‐Zavadsky, M., Zamojski, M., Rujopakarn, W., Richard, J., Sklias, P., Schaerer, D., Combes, F., Ebeling, H., Rawle, T. D., Egami, E., Boone, F., Clement, B., Kneib, J. ‐P., Nyland, K., Walth, G., Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut de recherche en astrophysique et planétologie (IRAP), Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Midi-Pyrénées (OMP), Institut de Recherche pour le Développement (IRD)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Institut de Recherche pour le Développement (IRD)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS)-Météo-France -Centre National de la Recherche Scientifique (CNRS), Laboratoire d'Etude du Rayonnement et de la Matière en Astrophysique (LERMA), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire de Paris, Université Paris sciences et lettres (PSL)-Université de Cergy Pontoise (UCP), Université Paris-Seine-Université Paris-Seine-Centre National de la Recherche Scientifique (CNRS), Collège de France - Chaire Galaxies et cosmologie, Collège de France (CdF (institution)), Laboratoire d'Astrophysique de Marseille (LAM), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National d'Études Spatiales [Toulouse] (CNES)-Centre National de la Recherche Scientifique (CNRS), École normale supérieure - Paris (ENS Paris), and Chaire Galaxies et cosmologie
- Subjects
[SDU.ASTR]Sciences of the Universe [physics]/Astrophysics [astro-ph] ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics::Galaxy Astrophysics - Abstract
International audience; We report on the galaxy MACSJ0032‐arc at z(CO) = 3.6314 discovered during the Herschel Lensing snapshot Survey of massive galaxy clusters, and strongly lensed by the cluster MACSJ0032.1+1808. The successful detections of its rest‐frame ultraviolet (UV), optical, far‐infrared (FIR), millimeter, and radio continua, and of its CO emission enable us to characterize, for the first time at such a high redshift, the stellar, dust, and molecular gas properties of a compact star‐forming galaxy with a size smaller than 2.5 kpc, a fairly low stellar mass of 4.8(‐1.0)(+0.5) x 10(9) M circle dot, and a moderate IR luminosity of 4.8(‐0.6)(+1.2) x 10(11) L circle dot. By combining the stretching effect of the lens with the high angular resolution imaging of the CO(10) line emission and the radio continuum at 5 GHz, we find that the bulk of the molecular gas mass and star formation seems to be spatially decoupled from the rest‐frame UV emission. About 90% of the total star formation rate is undetected at rest‐frame UV wavelengths because of severe obscuration by dust, but is seen through the thermal FIR dust emission and the radio synchrotron radiation. The observed CO(43) and CO(65) lines demonstrate that high‐J transitions, at least up to J = 6, remain excited in this galaxy, whose CO spectral line energy distribution resembles that of high‐redshift submm galaxies, even though the IR luminosity of MACSJ0032‐arc is ten times lower. This high CO excitation is possibly due to the compactness of the galaxy. We find evidence that this high CO excitation has to be considered in the balance when estimating the CO‐to‐H‐2 conversion factor. Indeed, the respective CO‐to‐H‐2 conversion factors as derived from the correlation with metallicity and the FIR dust continuum can only be reconciled if excitation is accounted for. The inferred depletion time of the molecular gas in MACSJ0032‐arc supports the decrease in the gas depletion timescale of galaxies with redshift, although to a lesser degree than predicted by galaxy evolution models. Instead, the measured molecular gas fraction as high as 6079% in MACSJ0032‐arc favors the continued increase in the gas fraction of galaxies with redshift as expected, despite the plateau observed between z similar to 1.5 and z similar to 2.5.
- Published
- 2017
46. The X-ray morphology of the relaxed cluster of galaxies A2256. I - Evidence for a merger event
- Author
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Briel, U. G, Henry, J. P, Schwarz, R. A, Boehringer, H, and Ebeling, H
- Subjects
Astrophysics - Abstract
The rich cluster of galaxies A2256 are studied by utilizing the imaging proportional counter on board the X-ray observatory ROSAT. A2256 is considered to be a relaxed Coma-like cluster which is dynamically well evolved. Cleara evidence, however, is found for substructure in A2256. The X-ray surface brightness distribution reveals two separate maxima in the center; one of which is coincident with the central cD galaxy while the morphology of the other shows indications that it is merging with the main cluster body. The X-ray temperatures of the two maxima are different; the probable merging object being about a factor of five cooler than the cluster. The previously measured broad velocity distribution supports the idea that a merger is occurring in this cluster.
- Published
- 1991
47. “Zestwear, Inc.” seeks a European partner
- Author
-
Ebeling, H. William and Smith, Erica
- Published
- 1991
- Full Text
- View/download PDF
48. Radio halos in SZ-selected clusters of galaxies: the making of a halo?
- Author
-
Bonafede, A., Intema, H. T., Br��ggen, M., Vazza, F., Basu, K., Sommer, M., Ebeling, H., de Gasperin, F., R��ttgering, H. J. A., van Weeren, R. J., and Cassano, R.
- Subjects
Cosmology and Nongalactic Astrophysics (astro-ph.CO) ,Astrophysics::High Energy Astrophysical Phenomena ,FOS: Physical sciences ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics::Galaxy Astrophysics ,Astrophysics - Cosmology and Nongalactic Astrophysics - Abstract
Radio halos are synchrotron radio sources detected in some massive galaxy clusters. Their Mpc-size indicates that (re)acceleration processes are taking place in the host cluster. X-ray catalogues of galaxy clusters have been used in the past to search for radio halos and to understand their connection with cluster-cluster mergers and with the thermal component of the intra-cluster medium. More recently, the Sunyaev-Zel'dovich effect has been proven to be a better route to search for massive clusters in a wider redshift range. With the aim of discovering new radio halos and understanding their connection with cluster-cluster mergers, we have selected from the Planck Early source catalog the most massive clusters, and we have observed with the Giant Metrewave Radio Telescope at 323 MHz those objects for which deep observations were not available. We have discovered new peculiar radio emission in three of the observed clusters finding: (i) a radio halo in the cluster RXCJ0949.8+1708; (ii) extended emission in Abell 1443 that we classify as a radio halo plus a radio relic, with a bright filament embedded in the radio halo; (iii) low-power radio emission is found in CIZA J1938.3+5409 which is ten times below the radio - X-ray correlation, and represents the first direct detection of the radio emission in the "upper-limit" region of the radio - X-ray diagram. We discuss the properties of these new radio halos in the framework of theoretical models for the radio emission., 14 pages, 12 Figures, Accepted by MNRAS
- Published
- 2015
49. Resolved spectroscopy of gravitationally lensed galaxies: global dynamics and star-forming clumps on ∼100 pc scales at 1 < z < 4
- Author
-
Livermore, RC, Jones, TA, Richard, J, Bower, RG, Swinbank, AM, Yuan, T-T, Edge, AC, Ellis, RS, Kewley, LJ, Smail, Ian, Coppin, KEK, and Ebeling, H
- Subjects
kinematics and dynamics [galaxies] ,star formation [galaxies] ,Astronomy & Astrophysics ,high-redshift [galaxies] ,Astronomical and Space Sciences - Abstract
© 2015 The Authors Published by Oxford University Press on behalf of the Royal Astronomical Society. We present adaptive optics-assisted integral field spectroscopy around the Hα or Hβ lines of 12 gravitationally lensed galaxies obtained with VLT/SINFONI,Keck/OSIRIS and Gemini/NIFS. We combine these data with previous observations and investigate the dynamics and star formation properties of 17 lensed galaxies at 1 < z⊙ yr-1, and stellar masses M* ~ 4 × 108-6 × 1010 M⊙. All of the galaxies show velocity gradients, with 59 per cent consistent with being rotating discs and a likely merger fraction of 29 per cent, with the remaining 12 per cent classed as 'undetermined'. We extract 50 star-forming clumps with sizes in the range 60 pc-1 kpc from the Hα (or Hβ) maps, and find that their surface brightnesses, Σclump and their characteristic luminosities, L0, evolve to higher luminosities with redshift. We show that this evolution can be described by fragmentation on larger scales in gas-rich discs, and is likely to be driven by evolving gas fractions.
- Published
- 2015
50. Resolved spectroscopy of gravitationally lensed galaxies: global dynamics and star-forming clumps on ˜100 pc scales at 1 < z < 4
- Author
-
Livermore, R. C., Jones, T. A., Richard, J., Bower, R. G., Swinbank, A. M., Yuan, T.-T., Edge, A. C., Ellis, R. S., Kewley, L. J., Smail, Ian, Coppin, K. E. K., Ebeling, H., Institute for Computational Cosmology (ICC), Durham University, California Institute of Technology (CALTECH), Centre de Recherche Astrophysique de Lyon (CRAL), École normale supérieure - Lyon (ENS Lyon)-Université Claude Bernard Lyon 1 (UCBL), Université de Lyon-Université de Lyon-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS), Department of Physics, Institute for Astronomy [Honolulu], University of Hawai‘i [Mānoa] (UHM), AUTRES, École normale supérieure de Lyon (ENS de Lyon)-Université Claude Bernard Lyon 1 (UCBL), and Université de Lyon-Université de Lyon-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)
- Subjects
[SDU.ASTR.CO]Sciences of the Universe [physics]/Astrophysics [astro-ph]/Cosmology and Extra-Galactic Astrophysics [astro-ph.CO] ,Astrophysics::Solar and Stellar Astrophysics ,Astrophysics::Earth and Planetary Astrophysics ,Astrophysics::Cosmology and Extragalactic Astrophysics ,Astrophysics::Galaxy Astrophysics - Abstract
International audience; We present adaptive optics-assisted integral field spectroscopy around the Halpha or Hbeta lines of 12 gravitationally lensed galaxies obtained with VLT/SINFONI, Keck/OSIRIS and Gemini/NIFS. We combine these data with previous observations and investigate the dynamics and star formation properties of 17 lensed galaxies at 1 < z < 4. Thanks to gravitational magnification of 1.4-90 times by foreground clusters, effective spatial resolutions of 40-700 pc are achieved. The magnification also allows us to probe lower star formation rates (SFRs) and stellar masses than unlensed samples; our target galaxies feature dust-corrected SFRs derived from Halpha or Hbeta emission of ˜0.8-40 M&sun; yr-1, and stellar masses M* ˜ 4 × 108-6 × 1010 M&sun;. All of the galaxies show velocity gradients, with 59 per cent consistent with being rotating discs and a likely merger fraction of 29 per cent, with the remaining 12 per cent classed as `undetermined'. We extract 50 star-forming clumps with sizes in the range 60 pc-1 kpc from the Halpha (or Hbeta) maps, and find that their surface brightnesses, Sigmaclump and their characteristic luminosities, L0, evolve to higher luminosities with redshift. We show that this evolution can be described by fragmentation on larger scales in gas-rich discs, and is likely to be driven by evolving gas fractions.
- Published
- 2015
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