90 research outputs found
Loneliness and hypervigilance to social cues: An eye-tracking study
No full textItem does not contain fulltextThis data deposit contains data from the project “Loneliness and Hypervigilance to Social Cues in Females: An Eye-Tracking Study”
The dataset contains the following data:
- File 0: Questionnaire data. Contains the questionnaires loneliness (UCLA), social anxiety (SPIN) and depression (CES-D), and information on who is in the lonely and nonlonely group (lonely_group).
- File 1: Eye-tracking data from the first task
- File 2: Eye-tracking data from the second task
- File 3: Eye-tracking data from the third task
- File 4: Eye-tracking data from the fourth task
All eye-tracking files contain all fixations that were measured during the eye-tracking task.
The process for aggregating these data is described in the paper “Loneliness and Hypervigilance to Social Cues in Females: An Eye-Tracking Study”.
The syntaxes for creating these data can be obtained by contacting the first author of the study (Gerine Lodder)
Loneliness and hypervigilance to social cues: An eye-tracking study
No full textThis data deposit contains data from the project “Loneliness and Hypervigilance to Social Cues in Females: An Eye-Tracking Study”
The dataset contains the following data:
- File 0: Questionnaire data. Contains the questionnaires loneliness (UCLA), social anxiety (SPIN) and depression (CES-D), and information on who is in the lonely and nonlonely group (lonely_group).
- File 1: Eye-tracking data from the first task
- File 2: Eye-tracking data from the second task
- File 3: Eye-tracking data from the third task
- File 4: Eye-tracking data from the fourth task
All eye-tracking files contain all fixations that were measured during the eye-tracking task.
The process for aggregating these data is described in the paper “Loneliness and Hypervigilance to Social Cues in Females: An Eye-Tracking Study”.
The syntaxes for creating these data can be obtained by contacting the first author of the study (Gerine Lodder)
Loneliness and hypervigilance to social cues: An eye-tracking study
No full textThis data deposit contains data from the project “Loneliness and Hypervigilance to Social Cues in Females: An Eye-Tracking Study”
The dataset contains the following data:
- File 0: Questionnaire data. Contains the questionnaires loneliness (UCLA), social anxiety (SPIN) and depression (CES-D), and information on who is in the lonely and nonlonely group (lonely_group).
- File 1: Eye-tracking data from the first task
- File 2: Eye-tracking data from the second task
- File 3: Eye-tracking data from the third task
- File 4: Eye-tracking data from the fourth task
All eye-tracking files contain all fixations that were measured during the eye-tracking task.
The process for aggregating these data is described in the paper “Loneliness and Hypervigilance to Social Cues in Females: An Eye-Tracking Study”.
The syntaxes for creating these data can be obtained by contacting the first author of the study (Gerine Lodder)
Bully Victimization: Selection and Influence Within Adolescent Friendship Networks and Cliques
No full textPaper - Open Access, published as:
Lodder, G.M.A., Scholte, R.H.J., Cillessen, A.H.N., & Giletta, M. (2016). Bully victimization: Selection and Influence Within Adolescent Friendship Networks and Cliques. Journal of Youth and Adolescence, 45, 132-144.
Adolescents tend to form friendships with similar peers and, in turn, their friends further influence adolescents’ behaviors and attitudes. Emerging work has shown that these selection and influence processes also might extend to bully victimization. However, no prior work has examined selection and influence effects involved in bully victimization within cliques, despite theoretical account emphasizing the importance of cliques in this regard. This study examined selection and influence processes in adolescence regarding bully victimization both at the level of the entire friendship network and the level of cliques. We used a two-wave design (5-month interval). Participants were 543 adolescents (50.1 % male, Mage = 15.8) in secondary education. Stochastic actorbased models indicated that at the level of the larger friendship network, adolescents tended to select friends with similar levels of bully victimization as they themselves. In addition, adolescent friends influenced each other in terms of bully victimization over time. Actor Parter Interdependence models showed that similarities in bully victimization between clique members were not due to selection of clique members. For boys, average clique bully victimization predicted individual bully victimization over time (influence), but not vice versa. No influence was found for girls, indicating that different mechanisms may underlie friend influence on bully victimization for girls and boys. The differences in results at the level of the larger friendship network versus the clique emphasize the importance of taking the type of friendship ties into account in research on selection and influence processes involved in bully victimization
Technisch rapport Duinafslag
No full textDe TAW Leidraad Duinafslag van 1984 is vervangen door dit Technisch Rapport Duinafslag 2006 (TRDA2006). De hoofdreden daarvoor is dat er indertijd bij het opstellen van de Leidraad 1984 niet voldoende rekening is gehouden met het effect dat de golfperiode heeft op de mate van duinafslag. Metingen van golfkarakteristieken hebben inmiddels laten zien dat er tijdens zware stormvloedomstandigheden langere golfperioden kunnen voorkomen (Tp ? 16 - 20 s) dan waar indertijd rekening mee werd gehouden (Tp = 12 s). Met de procedures die in het TRDA2006 worden beschreven, wordt wel met het effect van deze langere golfperioden rekening gehouden. Daarnaast zijn er enkele andere nieuwe inzichten in het TRDA2006 verwerkt.TAW/EN
Future Response of the Wadden Sea Tidal Basins to Relative Sea-Level rise—An Aggregated Modelling Approach
No full textClimate change, and especially the associated acceleration of sea-level rise, forms a serious threat to the Wadden Sea. The Wadden Sea contains the world’s largest coherent intertidal flat area and it is known that these flats can drown when the rate of sea-level rise exceeds a critical limit. As a result, the intertidal flats would then be permanently inundated, seriously affecting the ecological functioning of the system. The determination of this critical limit and the modelling of the transient process of how a tidal basin responds to accelerated sea-level rise is of critical importance. In this contribution we revisit the modelling of the response of the Wadden Sea tidal basins to sea-level rise using a basin scale morphological model (aggregated scale morphological interaction between tidal basin and adjacent coast, ASMITA). Analysis using this aggregated scale model shows that the critical rate of sea-level rise is not merely influenced by the morphological equilibrium and the morphological time scale, but also depends on the grain size distribution of sediment in the tidal inlet system. As sea-level rises, there is a lag in the morphological response, which means that the basin will be deeper than the systems morphological equilibrium. However, so long as the rate of sea-level rise is constant and below a critical limit, this offset becomes constant and a dynamic equilibrium is established. This equilibrium deviation as well as the time needed to achieve the dynamic equilibrium increase non-linearly with increasing rates of sea-level rise. As a result, the response of a tidal basin to relatively fast sea-level rise is similar, no matter if the sea-level rise rate is just below, equal or above the critical limit. A tidal basin will experience a long process of ‘drowning’ when sea-level rise rate exceeds about 80% of the critical limit. The insights from the present study can be used to improve morphodynamic modelling of tidal basin response to accelerating sea-level rise and are useful for sustainable management of tidal inlet systems.Coastal Engineerin
The ‘Research for Policy’ cycle in Dutch coastal flood risk management: The Coastal Genesis 2 research programme
No full textThe development of the Coastal Genesis 2 research programme and its role in contributing to Dutch coastal policy are described in the paper. The organisation of policy development related to coastal flood risk and erosion in The Netherlands is addressed, highlighting the division of responsibilities between the policy and operational directorates of the Ministry of Infrastructure and Water Management. A conceptual model of the long term sediment budget of the Dutch coast that underpins the current Coastal Flood and Erosion Risk Management policy is detailed. The role of the operational directorate Rijkswaterstaat in coordinating a ‘Research for Policy’ cycle as a means of generating new insights on the coastal system and ensuring their subsequent inclusion in a new/revised conceptual model, is highlighted. By detailing the new conceptual model of the long term sediment budget, the paper demonstrates how key uncertainties related to this model guided the determination of the research agenda for Coastal Genesis 2. The paper concludes by reflecting briefly on the outcomes of the research programme and the role of the ‘Research for Policy’ cycle in ensuring the sustainable future of the Dutch coast.Policy Analysi
Zoutindringing Nickerie-rivier: Vooronderzoek
No full textIn NoordWest Suriname is er een toenemende behoefte aan irrigatiewater. Een van de rivieren waaruit water voor irrigatie onttrokken wordt is de Nickerie rivier. Langs de Nickerie rivier liggen een aantal grote polders met als belangrijkste gewas rijst. Het onttrekken van water is van invloed op de kwaliteit van het rivierwater. Het gaat dan om het zoutgehalte in de rivier op de onttrekkingspunten. Wanneer de natuurlijke rivierafvoer te laag is dringt het zoute zeewater tot ver bovenstrooms door. Dit is voor de Nicketie het geval in de droge tijd: oktober/november. Bij een te hoog zoutgehalte van de rivier moeten de onttrekkingen gestopt worden, om de te bevloeien gewassen niet te beschadigen. Om tot een goede keuze voor de onttrekkingen te komen, is een voorspellingsmodel voor het zoutgehalte, in tijd en plaats, een belangrijk hulpmiddel. Momenteel wordt de kwaliteit van het water door monstername bepaald. Deze situatie is bizonder onbevredigend omdat de onttrekkingen, bij een te hoog zoutgehalte, abrupt moeten worden gestopt. De ongelijkmatige bevloeiing is minder wenselijk voor de gewassen. Doelstelling bij dit afstudeeronderzoek, is het opzetten van een model, of presentatie van gegevens, waarmee voorspellingen voor de gemiddelde zoutverdeling in de rivier kunnen worden gemaakt. In een eerste opzet is de voorspelling van de toelaatbare zoutgrens (300 [mg/ltrJ) voldoende, later kan het model worden uitgebreid met voorspellingen voor het zoutgehalte aan de verschillende onttrekkingspunten.Hydraulic EngineeringCivil Engineering and Geoscience
Use of high-throughput DNA data for discovery of unknown genes in Zebrafish
No full textThe amounts of genetic data that are produced is steadily increasing. New methods to sequence genetic data are invented and existing methods are refined, resulting in the generation of more and larger datasets. To extract useful data from these growing datasets, the algorithms processing them have to support the new and larger datasets. In this thesis, four zebrafish NanoCAGE datasets have been processed using new algorithms to map the genetic expression to known genes, discover unknown gene candidates and extract the occurrence of five Transcription Factor Binding Sites (TFBSs). Also, the infected and control datasets have been compared to find infection induced genes. An unknown gene candidate has been found that appears to be highly expressed. The number of reads of that gene candidate is in the same order of the number of reads of the most expressed gene and in 3 out of 4 datasets it has more reads. A large number of other gene candidates have been found, of which more than 100 have more than 1000 matched reads. Furthermore, the TATA box TFBS occurs frequently upstream of highly transcribed locations on the genome. In the adult datasets, more than 40% of the locations on the genome with more than 100000 reads have a TATA box at the expected distance from the start of the reads and in the embryo datasets that percentage is more than 25%. In conclusion, the NanoCAGE method and the resulting datasets show to be valuable in the research of genetic expression and genetic regulation mechanisms.Computer EngineeringComputer EngineeringElectrical Engineering, Mathematics and Computer Scienc
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