So-called fake news and problematic information on social media assume an increasingly important roles in political debate. Focusing on the (early) run-up to and aftermath of the 2020 U.S. presidential elections, this study examines the extent of the problematic information in the most engaged-with content and most active users in ‘political Twitter’. We demarcated three time spans, the first surrounding Super Tuesday (March 2-22, 2020), the second providing a snapshot of the aftermath of the elections and the run-up to both the Senate run-off elections in Georgia (December 24, 2020 – January 4, 2021) and the (unforeseen) Capitol Hill riots on January 6, 2021. In the third time span (March 10-21, 2021), when election activities had ceased, we examine the effects of Twitter’s deplatforming (or so-called purge) of accounts after the Capitol riots in January, 2021. In order to shed light on the magnitude of problematic information, we mapped shared sources, labelled them and assessed the actors engaged in their dissemination. It was found that overall, mainstream sources are shared more often than problematic ones, but the percentage of problematic sources was much higher in December compared to both the March, 2020 and 2021 periods. Significantly, (hyper)partisan sources are close to half of all sources shared in the first two periods, implying a robust presence of them on social media. By March 2021, both the share of problematic and of (hyper)partisan sources had decreased significantly, suggesting an impact from Twitter’s deplatforming actions. Additionally, highly active, problematic users (fake profiles, bots, or locked/suspended accounts) were found on both sides of the political spectrum, albeit more abundantly from conservative users.
Physical activity (PA) is important for healthy ageing. Better insight into objectively measured PA levels in older adults is needed, since most previous studies employed self-report measures for PA assessment, which are associated with overestimation of PA. This study aimed to provide insight in objectively measured indoor and outdoor PA of older adults, and in PA differences by frailty levels. Data were collected among non-frail (N = 74) and frail (N = 10) subjects, aged 65 to 89 years. PA, measured for seven days with accelerometers and GPS-devices, was categorized into three levels of intensity (sedentary, light, and moderate-to-vigorous PA). Older adults spent most time in sedentary and light PA. Subjects spent 84.7%, 15.1% and 0.2%per day in sedentary, light and moderate-to-vigorous PA respectively. On average, older adults spent 9.8 (SD 23.7) minutes per week in moderate-to-vigorous activity, and 747.0 (SD 389.6) minutes per week in light activity. None of the subjects met the WHO recommendations of 150 weekly minutes of moderate-to-vigorous PA. Age-, sex- and health status-adjusted results revealed no differences in PA between non-frail and frail older adults. Subjects spent significantly more sedentary time at home, than not at home. Non-frail subjects spent significantly more time not at home during moderate-to-vigorous activities, than at home. Objective assessment of PA in older adults revealed that most PA was of light intensity, and time spent in moderate-to-vigorous PA was very low. None of the older adults met the World Health Organization recommendations for PA. These levels of MVPA are much lower than generally reported based on self-reported PA. Future studies should employ objective methods, and age specific thresholds for healthy PA levels in older adults are needed. These results emphasize the need for effective strategies for healthy PA levels for the growing proportion of older adults. https://doi.org/10.1371/journal.pone.0123168
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One of the authors of this research report participated in an international survey which provided insight into the ethical challenges that social workers faced during the covid-19 pandemic. However, this study did not show the prevalence of the challenges described. Were they widespread, or was it more a matter of individual cases? We conducted an additional survey among Dutch social professionals to shed more light on this matter, seeking an answer to our main question: what is the nature and extent of the ethical burden on social professionals in the Netherlands during the first phase of the covid-19 pandemic?
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Examining in-class activities to facilitate academic achievement in higher educationThere is an increasing interest in how to create an effective and comfortable indoor environment for lecturers and students in higher education. To achieve evidence-based improvements in the indoor environmental quality (IEQ) of higher education learning environments, this research aimed to gain new knowledge for creating optimal indoor environmental conditions that best facilitate in-class activities, i.e. teaching and learning, and foster academic achievement. The academic performance of lecturers and students is subdivided into short-term academic performance, for example, during a lecture and long-term academic performance, during an academic course or year, for example. First, a systematic literature review was conducted to reveal the effect of indoor environmental quality in classrooms in higher education on the quality of teaching, the quality of learning, and students’ academic achievement. With the information gathered on the applied methods during the literature review, a systematic approach was developed and validated to capture the effect of the IEQ on the main outcomes. This approach enables research that aims to examine the effect of all four IEQ parameters, indoor air quality, thermal conditions, lighting conditions, and acoustic conditions on students’ perceptions, responses, and short-term academic performance in the context of higher education classrooms. Next, a field experiment was conducted, applying the validated systematic approach, to explore the effect of multiple indoor environmental parameters on students and their short-term academic performance in higher education. Finally, a qualitative case study gathered lecturers’ and students’ perceptions related to the IEQ. Furthermore, how these users interact with the environment to maintain an acceptable IEQ was studied.During the systematic literature review, multiple scientific databases were searched to identify relevant scientific evidence. After the screening process, 21 publications were included. The collected evidence showed that IEQ can contribute positively to students’ academic achievement. However, it can also affect the performance of students negatively, even if the IEQ meets current standards for classrooms’ IEQ conditions. Not one optimal IEQ was identified after studying the evidence. Indoor environmental conditions in which students perform at their best differ and are task depended, indicating that classrooms should facilitate multiple indoor environmental conditions. Furthermore, the evidence provides practical information for improving the design of experimental studies, helps researchers in identifying relevant parameters, and lists methods to examine the influence of the IEQ on users.The measurement methods deduced from the included studies of the literature review, were used for the development of a systematic approach measuring classroom IEQ and students’ perceived IEQ, internal responses, and short-term academic performance. This approach allowed studying the effect of multiple IEQ parameters simultaneously and was tested in a pilot study during a regular academic course. The perceptions, internal responses, and short-term academic performance of participating students were measured. The results show associations between natural variations of the IEQ and students’ perceptions. These perceptions were associated with their physiological and cognitive responses. Furthermore, students’ perceived cognitive responses were associated with their short-term academic performance. These observed associations confirm the construct validity of the composed systematic approach. This systematic approach was then applied in a field experiment, to explore the effect of multiple indoor environmental parameters on students and their short-term academic performance in higher education. A field study, with a between-groups experimental design, was conducted during a regular academic course in 2020-2021 to analyze the effect of different acoustic, lighting, and indoor air quality (IAQ) conditions. First, the reverberation time was manipulated to 0.4 s in the intervention condition (control condition 0.6 s). Second, the horizontal illuminance level was raised from 500 to 750 lx in the intervention condition (control condition 500 lx). These conditions correspond with quality class A (intervention condition) and B (control condition), specified in Dutch IEQ guidelines for school buildings (2015). Third, the IAQ, which was ~1100 ppm carbon dioxide (CO2), as a proxy for IAQ, was improved to CO2 concentrations under 800 ppm, meeting quality class A in both conditions. Students’ perceptions were measured during seven campaigns with a questionnaire; their actual cognitive and short-term academic performances were evaluated with validated tests and an academic test, composed by the lecturer, as a subject-matter-expert on the taught topic, covered subjects discussed during the lecture. From 201 students 527 responses were collected and analyzed. A reduced RT in combination with raised HI improved students’ perceptions of the lighting environment, internal responses, and quality of learning. However, this experimental condition negatively influenced students’ ability to solve problems, while students' content-related test scores were not influenced. This shows that although quality class A conditions for RT and HI improved students’ perceptions, it did not influence their short-term academic performance. Furthermore, the benefits of reduced RT in combination with raised HI were not observed in improved IAQ conditions. Whether the sequential order of the experimental conditions is relevant in inducing these effects and/or whether improving two parameters is already beneficial, is unknownFinally, a qualitative case study explored lecturers’ and students’ perceptions of the IEQ of classrooms, which are suitable to give tutorials with a maximum capacity of about 30 students. Furthermore, how lecturers and students interact with this indoor environment to maintain an acceptable IEQ was examined. Eleven lecturers of the Hanze University of Applied Sciences (UAS), located in the northern part of the Netherlands, and twenty-four of its students participated in three focus group discussions. The findings show that lecturers and students experience poor thermal, lighting, acoustic, and IAQ conditions which may influence teaching and learning performance. Furthermore, maintaining acceptable thermal and IAQ conditions was difficult for lecturers as opening windows or doors caused noise disturbances. In uncomfortable conditions, lecturers may decide to pause earlier or shorten a lecture. When students experienced discomfort, it may affect their ability to concentrate, their emotional status, and their quality of learning. Acceptable air and thermal conditions in classrooms will mitigate the need to open windows and doors. This allows lecturers to keep doors and windows closed, combining better classroom conditions with neither noise disturbances nor related distractions. Designers and engineers should take these end users’ perceptions into account, often monitored by facility management (FM), during the renovation or construction of university buildings to achieve optimal IEQ conditions in higher education classrooms.The results of these four studies indicate that there is not a one-size fits all indoor environmental quality to facilitate optimal in-class activities. Classrooms’ thermal environment should be effectively controlled with the option of a local (manual) intervention. Classrooms’ lighting conditions should also be adjustable, both in light color and light intensity. This enables lecturers to adjust the indoor environment to facilitate in-class activities optimally. Lecturers must be informed by the building operator, for example, professionals of the Facility Department, how to change classrooms’ IEQ settings. And this may differ per classroom because each building, in which the classroom is located, is operated differently apart from the classroom location in the building, exposure to the environment, and its use. The knowledge that has come available from this study, shows that optimal indoor environmental conditions can positively influence lecturers’ and students’ comfort, health, emotional balance, and performance. These outcomes have the capacity to contribute to an improved school climate and thus academic achievement.
In this project on volunteering in LTH organisation we focus on three aims:1. To explain why organisations in different LTH sectors and regions had, have or need volunteers, how they interact with these volunteers, and the consequences (benefits and challenges) of volunteerism for these organisations.2. To determine how to find the right balance between paid and unpaid staff within the same organisation, considering the LTH sector and region they belong to, in order to create a healthy ecosystem within it (bearing in mind that no organisation can have both volunteers and paid staff do the same job - see above).3. To understand the perspectives, motives and expectations of why people (decide to) volunteer, how they interact with the organisation (management, paid staff) during volunteering, in order to interest them, recruit them, make use of them and retain them. In addition, it is also our aim to explain the benefits and challenges for people to volunteer.In this study, we will use an integrated approach, which implies that we aren’t only interested in the people- or organisation-side of volunteering (actor-side). We will also focus on the interactions between volunteers, paid staff and organisation during volunteering (core of the practice) in a certain LTH organisation, sector and region in the Netherlands (context-side). Studying volunteering in its specific contexts (organisation, sector, region) using an integrated practice approach, hasn’t been done before. In addition, as more and more LTH organisations in the Netherlands rely on volunteers (for their survival), either for economic, social or community (mienskip) reasons (context-related conditions), there is a need for a better understanding of volunteering (as indicated by aim 1-3). Finally, as not much literature has been based on Dutch studies about volunteering and the recruitment and retention of volunteers, this project will fill this gap.Besides the aims as outlined before, a more specific goal of this project is to provide recommendations for a sustainable business model for organisations to embrace volunteerism without affecting the structure of employees. In close cooperation with different LTH organisations, we will develop interventions as policy making instruments (and therefore also for the whole region where they are located). Furthermore, this research will contribute to industry, research (see also below), education (idem) and society. Our ultimate goal is to foster the wellbeing of the volunteers, paid staff and organisations and overall to contribute to social sustainability within The Netherlands.The above-mentioned aims and conceptual model lead to the following research question: How can volunteering in the LTH sectors in Dutch regions be shaped in a sustainable way for both volunteers as well as organisations?In line with what we discussed earlier, this also means contributing to a more stable labour market in hospitality, leisure and tourism in which voluntary work is recognised as an important and indispensable component of a healthy labour ecosystem.The approach we intend to adopt is a qualitative one based on narrative inquiry. While in the literature a quantitative approach using surveys to gather data is mostly used in understanding volunteerism and in measuring motives, we will observe and connect with the volunteers’ work in each sector/case identified and collect and analyse their individual stories. In addition, and in line with our integrated approach, we will investigate how the LTH organisations connected to these cases view the role, value and future of volunteerism.Societal IssueOur insights into volunteers’ work in different sectors will improve their quality of work by revealing drivers of their satisfaction, turnover, motivation, and passion. Managers can use these insights to train and retain volunteers as an integral part of not only their events, but the broader community. It is well-known that robust volunteering programmes are a cornerstone of contemporary social cohesion, and our findings will show how storytelling can strengthen these processes.Benefit to societyThis project will contribute in three ways to the LTH sector. The three outcomes of this study are first around a better understanding of what meaningful volunteering is, second, around the value of volunteers to LTH organisations, and, thirdly, about the value of such activities to Dutch society.The project will provide practical advice to LTH organisations on which interventions to use and in which contexts. This tangible output might take the form of a report, guide(s) mentioned above, and/or another instrument that suits the needs of managers and volunteers. The instrument(s) selected by LTH organisations and volunteers will help to disseminate best practices as well as to highlight the potential of volunteers and volunteering to wider society, other organisations and to current and potential volunteers. By following the steps in or using these instruments, we believe volunteer organisations will be better able to profile themselves and to recruit and retain volunteers.The present study will bring innovation in the field by generating new narratives on volunteerism, and by designing an engaging and appealing path for volunteers to join organisations. At the same time, it will design a structure for organisations to work with volunteers in a sustainable way.Consortium partners: Rodney Westerlaken, Geesje Duursma (both NHL Stenden, Leeuwarden)
