688 research outputs found
Perpetuation and Risk Factors of Quality of Life Impairment in Hodgkin Lymphoma Patients: A Substantive-Methodological Synergy
No full textStadtbäumer N. Perpetuation and Risk Factors of Quality of Life Impairment in Hodgkin Lymphoma Patients: A Substantive-Methodological Synergy. Bielefeld: Universität Bielefeld; 2023
Comparing longitudinal structural equation models with autoregressive effects
No full textStadtbäumer N, Mayer A. Comparing longitudinal structural equation models with autoregressive effects. Presented at the 14th Conference of the Section Methods and Evaluation of the German Psychological Society, Kiel
The reciprocal relation between cancer-related fatigue and physical and psychosocial functioning in survivors of Hodgkin lymphoma
No full textStadtbäumer N, Mayer A. The reciprocal relation between cancer-related fatigue and physical and psychosocial functioning in survivors of Hodgkin lymphoma. Presented at the International Symposium on Hodgkin lymphoma (ISHL11), Cologne
The reciprocal relation between cancer-related fatigue and physical and psychosocial functioning in survivors of Hodgkin lymphoma
No full textStadtbäumer N, Müller H, Goergen H, Kreissl S, Mayer A. The reciprocal relation between cancer-related fatigue and physical and psychosocial functioning in survivors of Hodgkin lymphoma. HemaSphere. 2018;2(S3):23-24
Predicting cancer-related fatigue of Hodgkin Lymphoma survivors: Identification of risk factors
No full textStadtbäumer N, Kreissl S, Borchmann P, Mayer A. Predicting cancer-related fatigue of Hodgkin Lymphoma survivors: Identification of risk factors. Oncology Research and Treatment . 2021;44(Suppl. 2):38
The interplay between cancer-related fatigue and functional health in Hodgkin lymphoma survivors.
No full textStadtbäumer N, Müller H, Goergen H, Kreissl S, Borchmann P, Mayer A. The interplay between cancer-related fatigue and functional health in Hodgkin lymphoma survivors. Health Psychology. 2020;39(10):905-911
Healcon: self-healing concrete to create durable and sustainable concrete structures
Get PDFWithin the theme ‘Self-healing materials for prolonged lifetime’ (NMP.2012.2.1-3) of the Seventh Framework Programme, self-healing concrete is an important topic. The project HEALCON, which deals with self-healing concrete to create durable and sustainable concrete structures, is funded by EU-FP7 and started in January 2013. The coordinator of the project is Prof. Nele De Belie (UGent) and the consortium partners are UGent, Avecom, TU Delft, Acciona, TUM, TTI, VTT, COWI, DTI, CEINNMAT, Devan and Fescon.
Adequate perpetuation of the road, tunnel and bridge network, is crucial to preserving European cohesion and business operations; and around 70% of this infrastructure is made of concrete. In order to garantuee liquid tightness of concrete structures, and enhance durability of elements prone to bending cracks, smart concrete with selfhealing properties will be designed.
Thanks to the existing expertise of the consortium in the field of self-healing concrete at a lab-scale, a thoughtful selection of promising techniques is possible.
- For early age cracks, a non-elastic repair material can be proposed, such as calcium carbonate precipitated by bacteria, or new cement hydrates of which the formation is stimulated by the presence of hydrogels.
- For moving cracks under dynamic load, an elastic polymeric healing agent is suggested.
Different healing agents and encapsulation techniques are tested and scaled up. Self-healing efficiency is evaluated in lab-scale tests using purposefully adapted monitoring techniques, and optimized with the help of suitable computer models.
Finally the efficiency is validated in a large scale lab test and implemented in an actual concrete structure. Life-cycle cost analysis will show the impact of the selfhealing technologies on economy, society and environment compared to traditional construction methods
Een monument voor het land : overheidsstatistiek in België, 1795-1870
Get PDFIn A monument to the country. Official statistics in Belgium, 1795-1870, Nele Bracke unravels why and how the Belgian state and its predecessors organized and developed an official statistical apparatus in order to collect numerical information. The study captures the underlying objectives and structures, as well as the methods to compile statistics. Nele Bracke investigates the meaning and significance of government statistics in the 19th-century State and society. In Belgium, early social scientists established an internationally renowned ‘statistical system’ designed to collect information about the country, the people and the society. This ‘statistical system’ was built around the ‘Commission centrale de Statistique’ (statistical committee) and the production of demographic, economic and agricultural censuses. In the first part of the book, the author analyzes the institutional history of the ‘Commission centrale de Statistique’ and its predecessors. In the second part of the book, she studies the censuses
Comparing Revised Latent State-Trait Models Including Autoregressive Effects
No full textStadtbäumer N, Kreissl S, Mayer A. Comparing Revised Latent State-Trait Models Including Autoregressive Effects. Psychological Methods . 2022.Understanding the longitudinal dynamics of behavior, their stability and change over time, are of great interest in the social and behavioral sciences. Researchers investigate the degree to which an observed measure reflects stable components of the construct, situational fluctuations, method effects, or just random measurement error. An important question in such models is whether autoregressive effects occur between the residuals, as in the trait-state occasion model (TSO model), or between the state variables, as in the latent state-trait model with autoregression (LST-AR model). In this article, we compare the two approaches by applying revised latent state-trait theory (LST-R theory). Similarly to Eid et al. (2017) regarding the TSO model, we show how to formulate the LST-AR model using definitions from LST-R theory, and we discuss the practical implications. We demonstrate that the two models are equivalent when the trait loadings are allowed to vary over time. This is also true for bivariate model versions. The different but same approaches to modeling latent states and traits with autoregressive effects are illustrated with a longitudinal study of cancer-related fatigue in Hodgkin lymphoma patients. Understanding the longitudinal dynamics of behavior, its stability and change over time, are of great interest in the social and behavioral sciences. Researchers investigate the degree to which an observed measure reflects stable components of the construct, situational fluctuations, method effects, or just random measurement error. An important question in such models is whether carry-over effects from one time point to another occur between the residuals, as in the trait-state occasion model (TSO model), or between the state variables, as in the latent state-trait model with autoregression (LST-AR model). The residuals represent events at each measurement, such as situational influences and person-situation interactions, whereas the state variables depict the momentary state of the person. In this article, we compare both models by using a theory (latent state-trait theory revised, LST-R theory) that takes into account that a person is not static over time, but is allowed to change over the time of measurement. Contrary to the expectation, we show that the two models are equivalent. Our study is not only an essential contribution to the existing research of models investigating the longitudinal dynamics of behavior, but also helps applied researchers to interpret the results from LST-R models with autoregressive effects
Een monument voor het land. Overheidsstatistiek in België, 1795-1870
Get PDFIn A monument to the country. Official statistics in Belgium, 1795-1870, Nele Bracke unravels why and how the Belgian state and its predecessors organized and developed an official statistical apparatus in order to collect numerical information. The study captures the underlying objectives and structures, as well as the methods to compile statistics. Nele Bracke investigates the meaning and significance of government statistics in the 19th-century State and society. In Belgium, early social scientists established an internationally renowned ‘statistical system’ designed to collect information about the country, the people and the society. This ‘statistical system’ was built around the ‘Commission centrale de Statistique’ (statistical committee) and the production of demographic, economic and agricultural censuses. In the first part of the book, the author analyzes the institutional history of the ‘Commission centrale de Statistique’ and its predecessors. In the second part of the book, she studies the censuses
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