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Browsing by Author "Arnarsson, Arsaell"

Browsing by Author "Arnarsson, Arsaell"

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  • Arnarsson, Arsaell; Kristofersson, Gisli; Bjarnason, Thoroddur (Wiley, 2017-07-28)
    Introduction. Over the past two decades, alcohol consumption of Icelandic adolescents has decreased dramatically. The aim of this study was to quantify the extent of this reduction and compare it with the trend in cannabis use over a 20 year period and ...
  • Arnarsson, Arsaell; Gísladóttir, Kristín Heba; Jonsson, Stefan Hrafn (Laeknabladid/The Icelandic Medical Journal, 2016-06-02)
    Inngangur: Kynferðisleg áreitni og ofbeldi gagnvart börnum og unglingum er ein alvarlegasta ógn við heilbrigði þeirra. Markmiðið var að rannsaka algengi og áhrif þess á íslenska unglinga í 10. bekk. Efniviður og aðferðir: Rannsóknin byggir á gögnum úr ...
  • Eriksson, Charli; Arnarsson, Arsaell; Damsgaard, Mogens Trab; Potrebny, Thomas; Suominen, Sakari; Torsheim, Trobjørn; Due, Pernille (Scandinavian University Press / Universitetsforlaget AS, 2019-11-11)
    Adolescence is an important developmental period. Young people face many pressures and challenges, including growing academic expectations, changing social relationships with family and peers, and the physical and emotional changes associated with ...
  • Arnarsson, Arsaell (The Educational Research Institute, 2020-02-10)
    Sú skoðun að kynslóðin sem nú vex úr grasi sé útsettari fyrir depurð en þær sem á undan hafa komið er útbreidd bæði á meðal almennings og fagaðila. Markmið þessarar rannsóknar var að skoða hvernig algengi daglegrar depurðar íslenskra unglinga breyttist ...
  • Gestsdottir, Sunna; Svansdottir, Erla; Sigurðsson, Héðinn; Arnarsson, Arsaell; Ommundsen, Yngvar; Arngrímsson, Sigurbjörn Árni; Sveinsson, Thorarinn; Jóhannsson, Erlingur (Termedia Sp. z.o.o., 2018)
    background Body image dissatisfaction has been linked with a range of adverse psychosocial outcomes in both genders and has become an important public health issue. Across all ages, women have reported being more dissatisfied with their bodies ...
  • Rúnarsdóttir, Eygló; Smith, Edward; Arnarsson, Arsaell (MDPI AG, 2019-05-20)
    Background: Sexual abuse and sexual assaults against adolescents are among the most significant threats to their health and well-being. Some studies have found poverty to be a risk factor for sexual abuse. The present study investigates the effects of ...
  • Arnarsson, Arsaell (Menntavísindastofnun, Menntavísindasvið, Háskóli Íslands, 219)
    Lök lífsskilyrði unglinga, hvort heldur sem þau felast í bágri fjárhagsstöðu heimilisins ellegar í miklum samfélagslegum ójöfnuði, eru heilsufarslegur áhættuþáttur. Í þessari rannsókn voru notuð gögn úr íslenskum hluta alþjóðlegrar rannsóknar á heilsu ...
  • Budisavljevic, Sanja; Arnarsson, Arsaell; Hamrik, Zdenek; Roberts, Chris; Godeau, Emmanuelle; Molcho, Michal; Weber, Martin W. (Elsevier BV, 2020-06)
    The Health Behaviour in School-aged Children (HBSC) study has informed the development and implementation of policy for children and adolescents for over three decades. The growing recognition that adolescence is a critical period for later health and ...
  • Pálsdóttir, Kolbrún Þ.; Arnarsson, Arsaell (Menntavísindastofnun Háskóla Íslands, 2018-12-31)
    Íslensk ungmenni byrja að stunda kynlíf að jafnaði fyrr en flest önnur evrópsk ungmenni. Unglingar sem byrja snemma að hafa samfarir eru í aukinni hættu á að upplifa neikvæðar afleiðingar kynlífs, svo sem þvingun, smitsjúkdóma og ótímabærar þunganir. ...
  • Arnarsson, Arsaell; Bjarnason, Thoroddur (MDPI AG, 2018-07-20)
    This paper tests the hypothesis of whether being bullied in an environment where bullying is infrequent decreases adolescents’ life satisfaction. Analyses were based on the international standard questionnaire from the 2005/2006 Health Behaviour in ...
  • Arnarsson, Arsaell; Potrebny, Thomas; Torsheim, Torbjorn; Eriksson, Charli (Scandinavian University Press / Universitetsforlaget AS, 2019-11-11)
    Adolescence is an important developmental period toward greater independence. However, the family is still very important in the life of young people. The aim of this study was to analyse changes over time in easy communication between adolescents and ...
  • Eriksson, Charli; Damsgaard, Mogens Trab; Löfstedt, Petra; Potrebny, Thomas; Suominen, Sakari; Torsheim, Torbjørn; Välimaa, Raili; Due, Pernille; Arnarsson, Arsaell; Þorsteinsson, Einar Baldur (Scandinavian University Press / Universitetsforlaget AS, 2019-11-11)
    The positive mental health and well-being perspective represents innovative public health research of first-rank priority in Europe. Good mental health is both a state and a resource for everyday life. Hence, the concept often refers to a subjective ...
  • Hanson, Charles; Arnarsson, Arsaell; Harðarson, Þórir; Lindgård, Ann; Daneshvarnaeini, Mandana; Ellerström, Catarina; Bruun, Anita; Stenevi, Ulf (Baishideng Publishing Group Inc., 2017)
    AIM To investigate whether human embryonic stem cells (hESCs) could be made to attach, grow and differentiate on a human Descemet’s membrane (DM). METHODS Spontaneously differentiated hESCs were transferred onto a human corneal button with the ...
  • Thorsteinsson, Einar B.; Potrebny, Thomas; Arnarsson, Arsaell; Tynjälä, Jorma; Välimaa, Raili; Eriksson, Charli (Scandinavian University Press / Universitetsforlaget AS, 2019-11-11)
    Sleep has been found to be an important factor in adolescents’ mental and physical health. The aim of the present study was to examine trends in sleep difficulty (i.e., difficulty falling asleep more often than once a week) in the Nordic countries among ...
  • Sigurgeirsdóttir, Vanda; Arnarsson, Arsaell (Menntavísindasvið Háskóla Íslands, 2018-12-19)
    Einelti er algengt og alvarlegt vandamál í skólastarfi. Þó að skólayfirvöld hér á landi hafi gripið til ýmissa aðgerða til að sporna við einelti hefur árangurinn ekki verið eins góður og vonast var til. Í þessari rannsókn var skoðuð reynsla ...