Social media hebben een belangrijke rol in het leven van jongeren, óók waar het gaat om relaties en seksualiteit. Een uiting hiervan is sexting, waarbij jongeren in vertrouwen seksueel getinte beelden van zichzelf met elkaar uitwisselen. Medio 2018 wezen berichten in de media ook op een ander fenomeen: dat van exposen, waarbij jongens dergelijke naaktbeelden van meisjes en jonge vrouwen verspreiden met het doel hen te ‘ontmaskeren’ en aan de schandpaal te nagelen. Valide onderzoek naar de aard, omvang en achtergronden van dit fenomeen was echter nog niet beschikbaar. Deze studie brengt de ervaringen met sexting en exposen en de gevolgen daarvan in beeld van jonge vrouwen met een migratieachtergrond in het hbo.
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Epidemiological miner cohort data used to estimate lung cancer risks related to occupational radon exposure often lack cohort-wide information on exposure to tobacco smoke, a potential confounder and important effect modifier. We have developed a method to project data on smoking habits from a case-control study onto an entire cohort by means of a Monte Carlo resampling technique. As a proof of principle, this method is tested on a subcohort of 35,084 former uranium miners employed at the WISMUT company (Germany), with 461 lung cancer deaths in the follow-up period 1955–1998. After applying the proposed imputation technique, a biologically-based carcinogenesis model is employed to analyze the cohort's lung cancer mortality data. A sensitivity analysis based on a set of 200 independent projections with subsequent model analyses yields narrow distributions of the free model parameters, indicating that parameter values are relatively stable and independent of individual projections. This technique thus offers a possibility to account for unknown smoking habits, enabling us to unravel risks related to radon, to smoking, and to the combination of both.
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Het ongewenst online verspreiden van naaktfoto’s en -filmpjes heeft grote gevolgen, vooral voor vrouwen met een migratieachtergrond. Docenten en ouders moeten jongeren helpen bij het vaststellen van regels en grenzen voor onlinecommunicatie.
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Light therapy is increasingly administered and studied as a non-pharmacologic treatment for a variety of healthrelated problems, including treatment of people with dementia. Light therapy comes in a variety of ways, ranging from being exposed to daylight, to being exposed to light emitted by light boxes and ambient bright light. Light therapy is an area in medicine where medical sciences meet the realms of physics, engineering and technology. Therefore, it is paramount that attention is paid in the methodology of studies to the technical aspects in their full breadth. This paper provides an extensive introduction for non-technical researchers on how to describe and adjust their methodology when involved in lighting therapy research. A specific focus in this manuscript is on ambient bright light, as it is an emerging field within the domain of light therapy. The paper deals with how to (i) describe the lighting equipment, (ii) describe the light measurements, (iii) describe the building and interaction with daylight. Moreover, attention is paid to the uncertainty in standards and guidelines regarding light and lighting for older adults.
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Studies among people with dementia demonstrated that the sleep quality and rhythm improves significantly when people are exposed to ambient bright light. Since almost half of the healthy older people also indicate to suffer from chronic sleep disorders, the question arises whether ambient bright light can be beneficial to healthy older people. Particularly the effect on sleep/wake rhythm in relation to the exposure to natural light is the focus. It was hypothesised that the sleep quality would be worse in winter due to a lower daylight dose than in summer due to the lower illuminance and exposure duration. A field study was conducted to examine the relationship between daylight exposure and sleep quality in 14 healthy older adults living independently in their own dwellings in the Netherlands. All participants were asked to take part of the study both during the summer period as well as during the winter period. Therefore, they had to wear an actigraph for five consecutive days which measured sleep, activity and light exposure. Results confirmed that people were significantly longer exposed to high illumination levels (>1000 lx) in summer than in winter. Sleep quality measures, however, did not differ significantly between summer and winter. A significant, positive correlation was found between exposure duration to high illuminance from daylight during the day and the sleep efficiency the following night in summer, implying that being exposed to high illuminance for a longer time period has a positive effect on sleep efficiency for the individual data. There was also a tendency of less frequent napping in case of longer exposure duration to light for both seasons. Sleep quality does not differ between summer and winter but is related to the duration of the exposure to bright light the day prior to the night. CC-BY Original article at http://solarlits.com/jd/5-14 http://dx.doi.org/10.15627/jd.2018.2 https://www.dehaagsehogeschool.nl/onderzoek/lectoraten/details/urban-ageing#over-het-lectoraat
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The aim of the current study was to examine the effectiveness of a school-centered multicomponent PA intervention, called ‘Active Living’, on children's daily PA levels. A quasi-experimental design was used including 9 intervention schools and 9 matched control schools located in the Netherlands. The baseline measurement took place between March–June 2013, and follow-up measurements were conducted 12 months afterwards. Accelerometer (ActiGraph, GT3X +) data of 520 children aged 8–11 years were collected and supplemented with demographics and weather conditions data. Implementation magnitude of the interventions was measured by keeping logbooks on the number of implemented physical environmental interventions (PEIs) and social environmental interventions (SEIs). Multilevel multivariate linear regression analyses were used to study changes in sedentary behavior (SB), light physical activity (LPA) and moderate-to-vigorous physical activity (MVPA) between baseline and follow-up. Finally, effect sizes (ESs) were calculated using Cohen's d. No pooled effects on PA and SB were found between children exposed and not exposed to Active Living after 12 months. However, children attending Active Living schools that implemented larger numbers of both PEIs and SEIs engaged in 15 more minutes of LPA per weekday at follow-up than children in the control condition (ES = 0.41; p < .05). Moreover, children attending these schools spent less time in SB at follow-up (ES = 0.33), although this effect was non-significant. No significant effects were found on MVPA. A school-centered multicomponent PA intervention holds the potential to activate children, but a comprehensive set of intervention elements with a sufficient magnitude is necessary to achieve at least moderate effect sizes.
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Objective To explore how to build and maintain the resilience of frontline healthcare professionals exposed to COVID-19 outbreak working conditions. Design Scoping review supplemented with expert interviews to validate the findings. Setting Hospitals. Methods We searched PubMed, Embase, PsycINFO, CINAHL, bioRxiv and medRxiv systematically and grey literature for articles focusing on the impact of COVID- 19-like working conditions on the physical and/or mental health of healthcare professionals in a hospital setting. Articles using an empirical design about determinants or causes of physical and/or mental health and about interventions, measures and policies to preserve physical and/or mental health were included. Four experts were interviewed to reflect on the results from the scoping review. Results In total, 4471 records were screened leading to an inclusion of 73 articles. Recommendations prior to the outbreak fostering resilience included optimal provision of education and training, resilience training and interventions to create a feeling of being prepared. Recommendations during the outbreak consisted of (1) enhancing resilience by proper provision of information, psychosocial support and treatment (eg, create enabling conditions such as forming a psychosocial support team), monitoring the health status of professionals and using various forms and content of psychosocial support (eg, encouraging peer support, sharing and celebrating successes), (2) tasks and responsibilities, in which attention should be paid to kind of tasks, task mix and responsibilities as well as the intensity and weight of these tasks and (3) work patterns and working conditions. Findings of the review were validated by experts. Conclusions Recommendations were developed on how to build and maintain resilience of frontline healthcare professionals exposed to COVID-19 outbreak working conditions. These practical and easy to implement recommendations can be used by hospitals and other healthcare organisations to foster and preserve short-term and long-term physical and mental health and employability of their professionals.
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Objective To explore how to build and maintain the resilience of frontline healthcare professionals exposed to COVID-19 outbreak working conditions. Design Scoping review supplemented with expert interviews to validate the findings. Setting Hospitals. Methods We searched PubMed, Embase, PsycINFO, CINAHL, bioRxiv and medRxiv systematically and grey literature for articles focusing on the impact of COVID- 19-like working conditions on the physical and/or mental health of healthcare professionals in a hospital setting. Articles using an empirical design about determinants or causes of physical and/or mental health and about interventions, measures and policies to preserve physical and/or mental health were included. Four experts were interviewed to reflect on the results from the scoping review. Results In total, 4471 records were screened leading to an inclusion of 73 articles. Recommendations prior to the outbreak fostering resilience included optimal provision of education and training, resilience training and interventions to create a feeling of being prepared. Recommendations during the outbreak consisted of (1) enhancing resilience by proper provision of information, psychosocial support and treatment (eg, create enabling conditions such as forming a psychosocial support team), monitoring the health status of professionals and using various forms and content of psychosocial support (eg, encouraging peer support, sharing and celebrating successes), (2) tasks and responsibilities, in which attention should be paid to kind of tasks, task mix and responsibilities as well as the intensity and weight of these tasks and (3) work patterns and working conditions. Findings of the review were validated by experts. Conclusions Recommendations were developed on how to build and maintain resilience of frontline healthcare professionals exposed to COVID-19 outbreak working conditions. These practical and easy to implement recommendations can be used by hospitals and other healthcare organisations to foster and preserve short-term and long-term physical and mental health and employability of their professionals.
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Wijkagenten en jongerenwerkers in de Rotterdamse wijk Delfshaven krijgen in toenemende mate te maken met meiden die slachtoffer (dreigen te) worden van ‘exposen’: het online verspreiden van seksueel getint (beeld)materiaal met het doel iemand reputatieschade toe te brengen. Om meer zicht te krijgen op deze ontwikkeling heeft de gemeente Rotterdam het lectoraat Publiek Vertrouwen in Veiligheid gevraagd onderzoek te doen naar de rollen die meiden tussen de 10-23 jaar spelen binnen het fenomeen exposen in Delfshaven. Uit het onderzoek blijkt dat meiden naast slachtoffer, ook omstander en dader zijn. Meiden exposen zelf, om zo andere meiden naar beneden te halen en in een positief daglicht (bij jongens) te komen. Verder valt op dat áls meiden reageren op exposen, zij dat alleen doen richting het slachtoffer, en niet richting de dader. De schuld van het exposen wordt veelal bij het slachtoffer neergelegd. Exposen heeft verregaande consequenties voor slachtoffers. Ze krijgen te maken met seksuele intimidatie, geweld door familieleden, trekken zich terug uit het sociale verkeer uit schaamte en kunnen een negatief zelfbeeld ontwikkelen. Geconcludeerd wordt dat exposen in Delfshaven plaatsvindt binnen een complex systeem van elkaar versterkende en deels overlappende contexten; straat-, wijk- en schaamtecultuur. Daar waar sprake is van een overlap is de kans op verregaande vormen van exposen met verregaande consequenties (en dus verstrekkende schade voor meiden en hun familie) het grootst. Geadviseerd wordt een aanpak in de eerste plaats te richten op meiden die zich in deze overlap bevinden, waarbij aandacht wordt besteed aan het objectieve én het subjectieve veiligheidsprobleem dat rond exposen in Delfshaven is ontstaan.
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Abstract: Since the first Oxford Survey of Childhood Cancer’s results were published, people have become more aware of the risks associated with prenatal exposure from diagnostic x rays. As a result, it has since been the subject of many studies. In this review, the results of recent epidemiological studies are summarized. The current international guidelines for diagnostic x-ray examinations were compared to the review. All epidemiological studies starting from 2007 and all relevant international guidelines were included. Apart from one study that involved rhabdomyosarcoma, no statistically significant associations were found between prenatal exposure to x rays and the development of cancer during 2007–2020. Most of the studies were constrained in their design due to too small a cohort or number of cases, minimal x-ray exposure, and/or data obtained from the exposed mothers instead of medical reports. In one of the studies, computed tomography exposure was also included, and this requires more and longer follow-up in successive studies. Most international guidelines are comparable, provide risk coefficients that are quite conservative, and discourage abdominal examinations of pregnant women.
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