24 results on '"Hayen R"'
Search Results
2. Assessing the physical-mechanical properties of ferruginous sandstone
- Author
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Hayen, R., primary, Fontaine, L., additional, and De Clercq, H., additional
- Published
- 2016
- Full Text
- View/download PDF
3. Soil Settlement and Uplift Damage to Architectural Heritage Structures in Belgium: Country-Scale Results from an InSAR-Based Analysis
- Author
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Drougkas, A., Verstrynge, E., Balen, K., Shimoni, M., Croonenborghs, T., Hayen, R., Declercq, P., and Walstra, J.
- Abstract
Soil movement may be induced by a wide variety of natural and anthropogenic causes, which are detectable in the local scale, but may influence the movement of the soil over vast geographical expanses. Space borne interferometric synthetic aperture radar (InSAR) measurements of ground movement provide a method for the remote sensing of soil settlement and uplift over wide geographic areas. Based on this settlement and uplift evaluation, the assessment of the potential damage to architectural heritage structures is possible. In this paper an interdisciplinary monitoring and analysis method is presented that processes satellite, cadastral, patrimonial and building geometry data, used for the calculation of settlement and uplift damage to architectural heritage structures in Belgium. It uses processed InSAR data for the determination of the soil movement profile around each case study, of which the typology is determined from patrimonial information databases and the geometry is calculated from digital elevation models. The impact on the historic structures is calculated from the determined soil movement profile based on various soilstructure interaction models for buildings. The resulting damage is presented in terms of a numerical index illustrating its severity according to different criteria. In this way the potential soil movement damage is quantified in a large number of buildings in an easily interpretable and user-friendly fashion. The processing of InSAR data collected over the previous 3 decades allows the determination of the progress of settlement- and uplift-induced damage in this time period. With the integration of newly acquired and more accurate data, the methodology will continue to produce results in the coming years, both for the evaluation of soil settlement and uplift in Belgium as for introducing related damage risk data for existing architectural heritage buildings. Results of the analysis chain are presented in terms of potential current damage for selected areas and buildings.
- Published
- 2021
- Full Text
- View/download PDF
4. Advanced Processing of Remotely Sensed Big Data for Cultural Heritage Conservation
- Author
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Shimoni, M., primary, Croonenborghs, T., additional, Declercq, P.-Y, additional, Drougkas, A., additional, Verstrynge, E., additional, Hocquet, F-P., additional, Hayen, R., additional, and Balen, K. Van, additional
- Published
- 2019
- Full Text
- View/download PDF
5. Preparation and Dating of Mortar Samples-Mortar Dating Inter-Comparison Study (MODIS)
- Author
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Hajdas, I, Lindroos, A, Heinemeier, J, Ringbom, A, Marzaioli, F, Terrasi, F, Passariello, I, Capano, M, Artioli, G, Addis, A, Secco, M, Michalska, D, Czernik, J, Goslar, T, Hayen, R, Van Strydonck, M, Fontaine, L, Boudin, M, Maspero, F, Panzeri, L, Galli, A, Urbanová, P, Guibert, P, Hajdas, I, Lindroos, A, Heinemeier, J, Ringbom, A, Marzaioli, F, Terrasi, F, Passariello, I, Capano, M, Artioli, G, Addis, A, Secco, M, Michalska, D, Czernik, J, Goslar, T, Hayen, R, Van Strydonck, M, Fontaine, L, Boudin, M, Maspero, F, Panzeri, L, Galli, A, Urbanová, P, and Guibert, P
- Abstract
Seven radiocarbon laboratories: Åbo/Aarhus, CIRCE, CIRCe, ETHZ, Poznań, RICH, and Milano-Bicocca performed separation of carbonaceous fractions suitable for 14C dating of four mortar samples selected for the MOrtar Dating Inter-comparison Study (MODIS). In addition, optically stimulated luminescence (OSL) analyses were completed by Milano-Bicocca and IRAMAT-CRP2A Bordeaux. Each laboratory performed separation according to laboratory protocol. Results of this first intercomparison show that even though consistent 14C ages were obtained by different laboratories, two mortars yielded ages different than expected from the archaeological context.
- Published
- 2017
6. Mortar Dating Methodology: Assessing Recurrent Issues and Needs for Further Research
- Author
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Hayen, R, Van Strydonck, M, Fontaine, L, Boudin, M, Lindroos, A, Heinemeier, J, Ringbom, Å, Michalska, D, Hajdas, I, Hueglin, S, Marzaioli, F, Terrasi, F, Passariello, I, Capano, M, Maspero, F, Panzeri, L, Galli, A, Artioli, G, Addis, A, Secco, M, Boaretto, E, Moreau, C, Guibert, P, Urbanova, P, Czernik, J, Goslar, T, Caroselli, M, Hayen, R, Van Strydonck, M, Fontaine, L, Boudin, M, Lindroos, A, Heinemeier, J, Ringbom, Å, Michalska, D, Hajdas, I, Hueglin, S, Marzaioli, F, Terrasi, F, Passariello, I, Capano, M, Maspero, F, Panzeri, L, Galli, A, Artioli, G, Addis, A, Secco, M, Boaretto, E, Moreau, C, Guibert, P, Urbanova, P, Czernik, J, Goslar, T, and Caroselli, M
- Abstract
Absolute dating of mortars is crucial when trying to pin down construction phases of archaeological sites and historic stone buildings to a certain point in time or to confirm, but possibly also challenge, existing chronologies. To evaluate various sample preparation methods for radiocarbon (14C) dating of mortars as well as to compare different dating methods, i.e. 14C and optically stimulated luminescence (OSL), a mortar dating intercomparison study (MODIS) was set up, exploring existing limits and needs for further research. Four mortar samples were selected and distributed among the participating laboratories: one of which was expected not to present any problem related to the sample preparation methodologies for anthropogenic lime extraction, whereas all others addressed specific known sample preparation issues. Data obtained from the various mortar dating approaches are evaluated relative to the historical framework of the mortar samples and any deviation observed is contextualized to the composition and specific mineralogy of the sampled material.
- Published
- 2017
7. Analysis and characterization of historic mortars for absolute dating
- Author
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Hayen, R., VAN STRYDONCK, M., Boaretto, E., Lindroos, A., Heinemeier, J., Ringbom, Å, Hueglin, S., Michalska, D., Hajdas, I., Marzaioli, F., Maspero, F., Galli, A., Artioli, G., Moreau, C., Guibert, P., and Caroselli, M.
- Published
- 2016
8. Methodology for heritage conservation in Belgium based on multi-temporal interferometry
- Author
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Bejarano Urrego, Leidy E., primary, Verstrynge, E., primary, Declercq, P.-Y., primary, Hayen, R., primary, Shimoni, M., primary, Lopez, J., primary, Walstra, J., primary, Derauw, D., primary, and Van Balen, K., primary
- Published
- 2017
- Full Text
- View/download PDF
9. GEPATAR: A geotechnical based PS-InSAR toolbox for architectural conservation in Belgium
- Author
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Shimoni, M., primary, Lopez, J., additional, Walstra, J., additional, Declercq, P.-Y, additional, Bejarano-Urrego, L., additional, Verstrynge, E., additional, Derauw, D., additional, Hayen, R., additional, and Van Balen, K., additional
- Published
- 2017
- Full Text
- View/download PDF
10. Common salt mixtures database: a tool to identify research needs
- Author
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Godts, S., Hayen, R., and De Clercq, H.
- Subjects
Conservation science - Abstract
Salt mixtures found in building materials and stone sculptures have been analyzed in the Monuments Laboratory at KIK-IRPA since the early 1960’s. The common salt mixtures database is a spreadsheet based on the results of quantitative ion analyses carried out with Ion Chromatography at KIK-IRPA since 2004, currently counting almost 6000 records of samples from Belgian monuments and sculptures, e.g., about 1600 brick and mortar samples, 300 wall plaster and 581 natural stone samples. Today, approximately 500 samples are yearly analyzed and added to the database. The samples are classified by location, type of material, depth and height. The main objective of this database is to generate average compositions of salt mixtures according to different criteria such as the geographic region, the type of building material, the depth and the height and hence to narrow down specific research needs and move from single salts to relevant salt mixtures. The average ion content representative for a selected group of samples is entered into the program ECOS/RUNSALT to predict the crystallization behavior. The outputs reveal a complex mixture consisting of kieserite, starkeyite, thenardite, nitratine, niter, darapskite, halite, bloedite and aphthitalite. Ultimately the location data will be linked to a geographic information system (GIS) and the database will be made available online so that researchers active in the field of salt analyses can add data. Keywords: salt, database, conservation, monuments, ecos
- Published
- 2014
- Full Text
- View/download PDF
11. Maintenance of pointing in historic buildings. Decay and replacement
- Author
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Hees, R.P.J. van, Naldini, S., Klugt, L.J.A.R. van der, Binda, L., Baronio, G., Pilar de Luxan, M., Dorrego, F., Balen, K.E.P. van, Hayen, R., and TNO Bouw
- Subjects
Architecture and Building - Abstract
The choice of incompatible mortars for the repair of pointing in historic buildings is among the most important causes of damage and too early maintenance need. Central in the project was the compatibility of mortars in historic buildings. The assessment of recurrent damages in which re-pointing is involved, hypotheses on the role of the re-pointing mortar in the occurrence of damage and laboratory research on incompatible and compatible solutions form the framework of the research undertaken.
- Published
- 2001
12. Methodology for heritage conservation in Belgium based on multi-temporal interferometry
- Author
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Themistocleous, Kyriacos, Michaelides, Silas, Papadavid, Giorgos, Ambrosia, Vincent, Schreier, Gunter, Hadjimitsis, Diofantos G., Bejarano-Urrego, L., Verstrynge, E., Shimoni, M., Lopez, J., Walstra, J., Declercq, P.-Y., Derauw, D., Hayen, R., and Van Balen, K.
- Published
- 2017
- Full Text
- View/download PDF
13. Preparation and Dating of Mortar Samples-Mortar Dating Inter-Comparison Study (MODIS)
- Author
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Michele Secco, Roald Hayen, Isabella Passariello, F. Maspero, Danuta Michalska, Jan Heinemeier, Irka Hajdas, Tomasz Goslar, Gilberto Artioli, Manuela Capano, Petra Urbanová, Laura Panzeri, Laurent Fontaine, Åsa Ringbom, Anna Galli, Fabio Marzaioli, Filippo Terrasi, Justyna Czernik, Mark Van Strydonck, Mathieu Boudin, Anna Addis, Pierre Guibert, Alf Lindroos, Hajdas, Irka, Lindroos, Alf, Heinemeier, Jan, Ringbom, Ã…sa, Marzaioli, Fabio, Terrasi, Filippo, Passariello, Isabella, Capano, Manuela, Artioli, Gilberto, Addis, Anna, Secco, Michele, Michalska, Danuta, Czernik, Justyna, Goslar, Tomasz, Hayen, Roald, Van Strydonck, Mark, Fontaine, Laurent, Boudin, Mathieu, Maspero, Francesco, Panzeri, Laura, Galli, Anna, Urbanovã¡, Petra, Guibert, Pierre, Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA), Faculty of Physics, Adam Mickiewicz University in Poznań (UAM), CNR Institute for Photonics and Nanotechnologies (IFN), Consiglio Nazionale delle Ricerche [Roma] (CNR), IRAMAT-Centre de recherche en physique appliquée à l’archéologie (IRAMAT-CRP2A), Institut de Recherches sur les Archéomatériaux (IRAMAT), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université Bordeaux Montaigne-Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université Bordeaux Montaigne-Université de Technologie de Belfort-Montbeliard (UTBM), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Collège de France (CdF)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Institut National de la Recherche Agronomique (INRA), Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Aix Marseille Université (AMU)-Collège de France (CdF (institution))-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS), Institut Royal du Patrimoine Artistique | Royal Institute for Cultural Heritage (KIK-IRPA), National Research Council of Italy | Consiglio Nazionale delle Ricerche (CNR), Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne (UBM)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne (UBM)-Centre National de la Recherche Scientifique (CNRS), Hajdas, I, Lindroos, A, Heinemeier, J, Ringbom, A, Marzaioli, F, Terrasi, F, Passariello, I, Capano, M, Artioli, G, Addis, A, Secco, M, Michalska, D, Czernik, J, Goslar, T, Hayen, R, Van Strydonck, M, Fontaine, L, Boudin, M, Maspero, F, Panzeri, L, Galli, A, Urbanová, P, and Guibert, P
- Subjects
010506 paleontology ,Archeology ,Optically stimulated luminescence ,[SHS.ARCHEO]Humanities and Social Sciences/Archaeology and Prehistory ,DOSE-RATE ,C-14 ,Mineralogy ,ACCELERATOR MASS-SPECTROMETRY ,Context (language use) ,01 natural sciences ,law.invention ,intercomparison ,law ,0601 history and archaeology ,CARBONATE ,Radiocarbon dating ,OSL ,ALAND ISLANDS ,0105 earth and related environmental sciences ,NONHYDRAULIC LIME MORTARS ,060102 archaeology ,Archeology (arts and humanities) ,CIRCE ,14 C ,06 humanities and the arts ,MEDIEVAL ,[CHIM.MATE]Chemical Sciences/Material chemistry ,AMS C-14 ,14C ,MODIS ,Comparison study ,OPTICALLY STIMULATED LUMINESCENCE ,mortar ,General Earth and Planetary Sciences ,Mortar ,Dose rate ,Earth and Planetary Sciences (all) ,Geology ,Accelerator mass spectrometry - Abstract
Seven radiocarbon laboratories: Åbo/Aarhus, CIRCE, CIRCe, ETHZ, Poznań, RICH, and Milano-Bicocca performed separation of carbonaceous fractions suitable for14C dating of four mortar samples selected for the MOrtar Dating Inter-comparison Study (MODIS). In addition, optically stimulated luminescence (OSL) analyses were completed by Milano-Bicocca and IRAMAT-CRP2A Bordeaux. Each laboratory performed separation according to laboratory protocol. Results of this first intercomparison show that even though consistent14C ages were obtained by different laboratories, two mortars yielded ages different than expected from the archaeological context.
- Published
- 2017
- Full Text
- View/download PDF
14. Mortar Dating Methodology: Assessing Recurrent Issues and Needs for Further Research
- Author
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Mark Van Strydonck, Laura Panzeri, Petra Urbanová, Christophe Moreau, Anna Galli, Marta Caroselli, Sophie Hueglin, Tomasz Goslar, Justyna Czernik, F. Maspero, Pierre Guibert, Danuta Michalska, Isabella Passariello, Laurent Fontaine, Manuela Capano, Åsa Ringbom, Fabio Marzaioli, Alf Lindroos, Mathieu Boudin, Anna Addis, Roald Hayen, Irka Hajdas, Elisabetta Boaretto, Gilberto Artioli, Jan Heinemeier, Michele Secco, Filippo Terrasi, Hayen, Roald, Van Strydonck, Mark, Fontaine, Laurent, Boudin, Mathieu, Lindroos, Alf, Heinemeier, Jan, Ringbom, Ã sa, Michalska, Danuta, Hajdas, Irka, Hueglin, Sophie, Marzaioli, Fabio, Terrasi, Filippo, Passariello, Isabella, Capano, Manuela, Maspero, Francesco, Panzeri, Laura, Galli, Anna, Artioli, Gilberto, Addis, Anna, Secco, Michele, Boaretto, Elisabetta, Moreau, Christophe, Guibert, Pierre, Urbanova, Petra, Czernik, Justyna, Goslar, Tomasz, Caroselli, Marta, Unité de chimie organique moléculaire et macromoléculaire (UCO2M), Le Mans Université (UM)-Centre National de la Recherche Scientifique (CNRS), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology in Zürich [Zürich] (ETH Zürich), Centre européen de recherche et d'enseignement des géosciences de l'environnement (CEREGE), Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD)-Collège de France (CdF)-Institut national des sciences de l'Univers (INSU - CNRS)-Aix Marseille Université (AMU)-Institut National de la Recherche Agronomique (INRA), CNR Institute for Photonics and Nanotechnologies (IFN), Consiglio Nazionale delle Ricerche [Roma] (CNR), Max Planck Weizmann Center for Integrative Archaeology and Anthropology (WPWC), Max Planck Institute for Evolutionary Anthropology, Max-Planck-Gesellschaft-Max-Planck-Gesellschaft-Weizmann Institute of Science, Laboratoire de Recherche en Sciences Humaines (Lares-Las), Université de Rennes 2 (UR2), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES), IRAMAT-Centre de recherche en physique appliquée à l’archéologie (IRAMAT-CRP2A), Institut de Recherches sur les Archéomatériaux (IRAMAT), Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne-Centre National de la Recherche Scientifique (CNRS), Faculty of Physics, Adam Mickiewicz University in Poznań (UAM), Le Mans Université (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Chimie du CNRS (INC), Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology [Zürich] (ETH Zürich), Aix Marseille Université (AMU)-Institut national des sciences de l'Univers (INSU - CNRS)-Collège de France (CdF (institution))-Institut de Recherche pour le Développement (IRD)-Centre National de la Recherche Scientifique (CNRS)-Institut National de la Recherche Agronomique (INRA), Weizmann Institute of Science [Rehovot, Israël]-Max Planck Institute for Evolutionary Anthropology [Leipzig], Max-Planck-Gesellschaft-Max-Planck-Gesellschaft, Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université Bordeaux Montaigne-Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS)-Université Bordeaux Montaigne-Université de Technologie de Belfort-Montbeliard (UTBM), Institut Royal du Patrimoine Artistique | Royal Institute for Cultural Heritage (KIK-IRPA), Åbo Akademi University [Turku], Aarhus University [Aarhus], Newcastle University [Newcastle], Seconda Università degli studi di Napoli, Università degli Studi di Milano-Bicocca [Milano] (UNIMIB), Universita degli Studi di Padova, Max Planck Institute for Evolutionary Anthropology [Leipzig], Max-Planck-Gesellschaft-Max-Planck-Gesellschaft-Weizmann Institute of Science [Rehovot, Israël], CEA- Saclay (CEA), Commissariat à l'énergie atomique et aux énergies alternatives (CEA), Poznań Radiocarbon Laboratory | Poznańskie Laboratorium Radiowęglowe, Scuola universitaria professionale della Svizzera italiana = University of Applied Sciences and Arts of Southern Switzerland [Manno] (SUPSI), Seconda Università degli Studi di Napoli = Second University of Naples, Università degli Studi di Milano-Bicocca = University of Milano-Bicocca (UNIMIB), Università degli Studi di Padova = University of Padua (Unipd), Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne (UBM)-Centre National de la Recherche Scientifique (CNRS)-Université de Technologie de Belfort-Montbeliard (UTBM)-Université d'Orléans (UO)-Université Bordeaux Montaigne (UBM)-Centre National de la Recherche Scientifique (CNRS), Hayen, R, Van Strydonck, M, Fontaine, L, Boudin, M, Lindroos, A, Heinemeier, J, Ringbom, Å, Michalska, D, Hajdas, I, Hueglin, S, Marzaioli, F, Terrasi, F, Passariello, I, Capano, M, Maspero, F, Panzeri, L, Galli, A, Artioli, G, Addis, A, Secco, M, Boaretto, E, Moreau, C, Guibert, P, Urbanova, P, Czernik, J, Goslar, T, and Caroselli, M
- Subjects
010506 paleontology ,Archeology ,Optically stimulated luminescence ,01 natural sciences ,Civil engineering ,law.invention ,law ,Absolute dating ,[CHIM]Chemical Sciences ,0601 history and archaeology ,CARBONATE ,Radiocarbon dating ,lime ,OSL ,0105 earth and related environmental sciences ,060102 archaeology ,Archeology (arts and humanities) ,Dating methodologies in archaeology ,06 humanities and the arts ,AMS C-14 ,LIME MORTARS ,radiocarbon AMS dating ,mortar dating ,General Earth and Planetary Sciences ,Environmental science ,Mortar ,Earth and Planetary Sciences (all) - Abstract
Absolute dating of mortars is crucial when trying to pin down construction phases of archaeological sites and historic stone buildings to a certain point in time or to confirm, but possibly also challenge, existing chronologies. To evaluate various sample preparation methods for radiocarbon (14C) dating of mortars as well as to compare different dating methods, i.e.14C and optically stimulated luminescence (OSL), a mortar dating intercomparison study (MODIS) was set up, exploring existing limits and needs for further research. Four mortar samples were selected and distributed among the participating laboratories: one of which was expected not to present any problem related to the sample preparation methodologies for anthropogenic lime extraction, whereas all others addressed specific known sample preparation issues. Data obtained from the various mortar dating approaches are evaluated relative to the historical framework of the mortar samples and any deviation observed is contextualized to the composition and specific mineralogy of the sampled material.
- Published
- 2017
- Full Text
- View/download PDF
15. Reliability improvement of a steam-transmission main through the replacement of expansion-compensating devices
- Author
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Hayen, R
- Published
- 1983
16. Neighborhood Social Conditions, Family Relationships, and Childhood Asthma.
- Author
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Chen E, Hayen R, Le V, Austin MK, Shalowitz MU, Story RE, and Miller GE
- Subjects
- Adolescent, Asthma therapy, Child, Cross-Sectional Studies, Female, Humans, Male, Asthma epidemiology, Asthma psychology, Family Relations psychology, Residence Characteristics, Social Conditions
- Abstract
Background and Objectives: Poor neighborhood conditions have established associations with poorer child health, but little is known about protective factors that mitigate the effects of difficult neighborhood conditions. In this study, we tested if positive family relationships can buffer youth who live in dangerous and/or disorderly neighborhoods from poor asthma outcomes., Methods: A total of 308 youths (aged 9-17) who were physician-diagnosed with asthma and referred from community pediatricians and/or family practitioners participated in this cross-sectional study. Neighborhood conditions around families' home addresses were coded by using Google Street View images. Family relationship quality was determined via youth interviews. Clinical asthma outcomes (asthma symptoms, activity limitations, and forced expiratory volume in 1 second percentile), asthma management behaviors (family response to asthma symptoms and integration of asthma into daily life), and asthma-relevant immunologic processes (lymphocyte T helper 1 and T helper 2 cytokine production and sensitivity to glucocorticoid inhibition) were assessed via questionnaires, interviews, spirometry, and blood draws., Results: Significant interactions were found between neighborhood conditions and family relationship quality (β = |.11-.15|; P < .05). When neighborhood danger and/or disorder was low, family relationships were not associated with asthma. When neighborhood danger and/or disorder was high, better family relationship quality was associated with fewer asthma symptoms, fewer activity limitations, and higher forced expiratory volume in 1 second percentile. Similar patterns emerged for asthma management behaviors. With immunologic measures, greater neighborhood danger and/or disorder was associated with greater T helper 1 and T helper 2 cytokine production and reduced glucocorticoid sensitivity., Conclusions: When youth live in dangerous and/or disorderly neighborhoods, high family relationship quality can buffer youth from poor asthma outcomes. Although families may not be able to change their neighborhoods, they may nonetheless be able to facilitate better asthma outcomes in their children through strong family relationships., Competing Interests: POTENTIAL CONFLICT OF INTEREST: The authors have indicated they have no potential conflicts of interest to disclose., (Copyright © 2019 by the American Academy of Pediatrics.)
- Published
- 2019
- Full Text
- View/download PDF
17. The costs of high self-control in Black and Latino youth with asthma: Divergence of mental health and inflammatory profiles.
- Author
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Chen E, Shalowitz MU, Story RE, Hayen R, Leigh AKK, Hoffer LC, Austin MK, Lam PH, Brody GH, and Miller GE
- Subjects
- Academic Success, Adolescent, Black or African American psychology, Asthma physiopathology, Child, Cytokines immunology, Depression ethnology, Depression metabolism, Female, Hispanic or Latino psychology, Humans, Male, Mental Disorders ethnology, Mental Disorders metabolism, Minority Groups psychology, Risk Factors, Stress, Psychological immunology, Stress, Psychological physiopathology, Th1 Cells immunology, Th2 Cells immunology, White People psychology, Asthma etiology, Mental Health ethnology, Self-Control psychology
- Abstract
Emerging evidence in psychology suggests a paradox whereby high levels of self-control when striving for academic success among minority youth can have physical health costs. This study tested the skin-deep resilience hypothesis in asthma- whether minority youth who are striving hard to succeed academically experience good psychological outcomes but poor asthma outcomes. Youth physician-diagnosed with asthma (N = 276, M age = 12.99; 155 = White, 121 = Black/Latino) completed interviews about school stress and a self-control questionnaire. Outcomes included mental health (anxiety/depression) and ex-vivo immunologic processes relevant to asthma (lymphocyte Th-1 and Th-2 cytokine production, and sensitivity to glucocorticoid inhibition). Physician contacts were tracked over a one-year follow-up. For minority youth experiencing high levels of school stress, greater self-control was associated with fewer mental health symptoms (beta = -0.20, p < .05), but worse asthma inflammatory profiles (larger Th-1 and Th-2 cytokine responses, lower sensitivity to glucocorticoid inhibition), and more frequent physician contacts during the one-year follow-up (beta's ranging from 0.22 to 0.43, p's < .05). These patterns were not evident in White youth. In minority youth struggling with school, high levels of self-control are detrimental to asthma inflammatory profiles and clinical outcomes. This suggests the need for health monitoring to be incorporated into academic programs to ensure that 'overcoming the odds' does not lead to heightened health risks in minority youth., (Copyright © 2019 Elsevier Inc. All rights reserved.)
- Published
- 2019
- Full Text
- View/download PDF
18. Academic disparities and health: How gender-based disparities in schools relate to boys' and girls' health.
- Author
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Levine CS, Miller GE, Shalowitz MU, Story RE, Manczak EM, Hayen R, Hoffer LC, Le V, Vause KJ, and Chen E
- Subjects
- Adolescent, Chicago, Child, Female, Humans, Male, Academic Success, Health Status Disparities, Sex Factors, Students statistics & numerical data
- Abstract
Rationale: Recent research reveals that, although girls encounter some barriers in school (e.g., in science and math), on balance, boys perform worse academically. Moreover, other research has identified a correlation between exposure to a context characterized by large disparities in performance or resources and a range of negative outcomes, including negative health and well-being, among members of lower status groups., Objective: Building on these literatures, the present research tests the relationship between gender disparities in academic performance within a school and students' health outcomes. Specifically, we investigated whether boys had worse health when they attended schools where there was a greater disparity between boys' and girls' academic performance., Method: We tested this hypothesis in two different samples with different health outcomes. In a sample of healthy eighth graders (Study 1; 159 girls and 81 boys), we assessed two indices of metabolic syndrome, and in a sample of children with asthma (Study 2; 122 girls and 153 boys), we assessed immune function (Th1 and Th2 cytokine production) and self-reported symptoms. Participants in both samples also reported the name of the school that they attended so that we could access publicly available information about the percentage of girls and the percentage of boys in each school who met expectations for their grade level on standardized tests., Results: In both samples, the greater the gap in a school between the percentage of girls and the percentage of boys who met expectations for their grade level on standardized tests, the worse boys' health. This pattern did not emerge among girls., Conclusion: Results thus highlight the negative health correlates of academic disparities among members of lower-performing groups., (Copyright © 2019 Elsevier Ltd. All rights reserved.)
- Published
- 2019
- Full Text
- View/download PDF
19. Family obligations and asthma in youth: The moderating role of socioeconomic status.
- Author
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Lam PH, Levine CS, Chiang JJ, Shalowitz MU, Story RE, Hayen R, Sinard RN, and Chen E
- Subjects
- Adolescent, Child, Exhalation, Family Relations, Female, Humans, Income, Inflammation, Male, Mental Health, Parents, Asthma therapy, Caregivers, Family, Social Class, Social Responsibility
- Abstract
Objective: Fulfilling family obligations-providing instrumental help to and spending time with family-is a common aspect of family relationships. However, whether fulfilling these obligations links with physical health remains unclear. In this study, we investigated whether fulfilling family obligations was associated with asthma outcomes among youth, and whether these associations differed depending on family socioeconomic status (SES)., Method: Participants were 172 youth, 8 to 17 years of age (Mage = 12.1; 54% boys) who had been physician-diagnosed with asthma and reported on family-obligation frequency; completed the Asthma Control Test (ACT; Nathan et al., 2004), a clinical measure of asthma control; and completed a measure of airway inflammation (i.e., fractional exhaled nitric oxide). Parents also completed the ACT in reference to their asthmatic children and reported on family income., Results: Fulfilling family obligations was not associated with asthma outcomes (βs < .14, ps > .075). However, SES (family income) interacted with family obligations, such that fulfilling family obligations was associated with greater airway inflammation (interaction term β = -.17, p = .023) and poorer parent-reported asthma control (interaction term β = .15, p = .039), only among youth from lower SES backgrounds. Exploratory analyses suggest that these interactions were robust against covariates and were largely consistent across age and the two dimensions of family-obligation behaviors., Conclusion: Findings from this study suggest that among youth from lower SES backgrounds, engaging in more frequent family-obligation behaviors may have negative repercussions in terms of their asthma. (PsycINFO Database Record, ((c) 2018 APA, all rights reserved).)
- Published
- 2018
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20. Difficult Family Relationships, Residential Greenspace, and Childhood Asthma.
- Author
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Chen E, Miller GE, Shalowitz MU, Story RE, Levine CS, Hayen R, Sbihi H, and Brauer M
- Subjects
- Adolescent, Asthma physiopathology, Asthma psychology, Child, Female, Housing, Humans, Male, Surveys and Questionnaires, Asthma etiology, Environmental Exposure, Family Relations psychology, Parent-Child Relations, Parenting psychology
- Abstract
Background and Objectives: Both the social environment and the physical environment are increasingly recognized as important to childhood diseases such as asthma. This study tested a novel hypothesis: that living in areas high in greenspace may help buffer the effects of difficult family relationships for children with asthma., Methods: A total of 150 children (ages 9-17), physician-diagnosed with asthma, participated in this study. To assess difficulties in parent-child relationships, parents and children completed measures of harsh/inconsistent parenting and parental hostility. Residential greenspace was calculated by using satellite-derived Normalized Difference Vegetation Index with a buffer of 250 m around the residential address. Outcomes included both clinical and biological measures: asthma control and functional limitations, as well as airway inflammation (fractional concentration of exhaled nitric oxide) and glucocorticoid receptor expression in T-helper cells., Results: After controlling for potential confounding variables, including family income, child demographics, and child medical variables, few main effects were found. However, interactions between residential greenspace and difficult family relationships were found for asthma control ( P = .02), asthma functional limitations ( P = .04), airway inflammation ( P = .007), and the abundance of glucocorticoid receptor in T-helper cells ( P = .05). These interactions were all in a direction such that as the quality of parent-child relationships improved, greenspace became more strongly associated with better asthma outcomes., Conclusions: These findings suggest synergistic effects of positive environments across the physical and social domains. Children with asthma appear to benefit the most when they both live in high greenspace areas and have positive family relationships., Competing Interests: POTENTIAL CONFLICT OF INTEREST: The authors have indicated they have no potential conflicts of interest to disclose., (Copyright © 2017 by the American Academy of Pediatrics.)
- Published
- 2017
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21. Dimensions of Socioeconomic Status and Childhood Asthma Outcomes: Evidence for Distinct Behavioral and Biological Associations.
- Author
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Chen E, Shalowitz MU, Story RE, Ehrlich KB, Levine CS, Hayen R, Leigh AK, and Miller GE
- Subjects
- Adolescent, Child, Female, Humans, Male, Asthma blood, Asthma epidemiology, Asthma immunology, Asthma prevention & control, Educational Status, Health Behavior, Income statistics & numerical data, Social Class
- Abstract
Objectives: The objective of this study was to investigate 2 key dimensions of socioeconomic status (SES)-prestige and resources-and their associations with immune, behavioral, and clinical outcomes in childhood asthma., Methods: Children ages 9 to 17 years with a physician's diagnosis of asthma (N = 150), and one of their parents participated in this study. Children and parents completed interviews and questionnaires about SES (prestige = parent education; resources = family assets), environmental exposures, and clinical asthma measures. Spirometry was conducted to assess children's pulmonary function, and blood was collected to measure cytokine production in response to nonspecific stimulation, allergen-specific stimulation, and microbial stimulation., Results: Higher scores on both dimensions of childhood SES were associated with better clinical outcomes in children (β's from |.18 to .27|, p values < .05). Higher prestige, but not resources, was associated with better home environment control behaviors and less exposure to smoke (β's from |.21 to .22|, p values < .05). Higher resources, but not prestige, was associated with more favorable immune regulation, as manifest in smaller peripheral blood mononuclear cell (PBMC) TH1 and TH2 cytokine responses (β's from -.18 to -.19; p values < .05), and smaller proinflammatory cytokine responses (β = -.19; p < .05) after ex vivo stimulation. Higher resources also were associated with more sensitivity to glucocorticoid inhibition of TH1 and TH2 cytokine production (β's from -.18 to -.22; p values < .05)., Conclusions: These results suggest that prestige and resources in childhood family environments have different implications for behavioral and immunological processes relevant to childhood asthma. They also suggest that childhood SES relates to multiple aspects of immunologic regulation of relevance to the pathophysiology of asthma., Competing Interests: and Source of Funding: All authors declare no conflicts of interest.
- Published
- 2016
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22. High-resolution X-ray CT for 3D petrography of ferruginous sandstone for an investigation of building stone decay.
- Author
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Cnudde V, Dewanckele J, Boone M, de Kock T, Boone M, Brabant L, Dusar M, de Ceukelaire M, de Clercq H, Hayen R, and Jacobs P
- Abstract
Diestian ferruginous sandstone has been used as the dominant building stone for monuments in the Hageland, a natural landscape in east-central Belgium. Like all rocks, this stone type is sensitive to weathering. Case hardening was observed in combination with blackening of the exterior parts of the dressed stones. To determine the 3D petrography and to identify the structural differences between the exterior and interior parts, X-ray computed tomography was used in combination with more traditional research techniques like optical microscopy and scanning electron microscopy. The 3D characterization of the ferruginous sandstone was performed with a high-resolution X-ray CT scanner (www.ugct.ugent.be) in combination with the flexible 3D analysis software Morpho+, which provides the necessary petrophysical parameters of the scanned samples in 3D. Besides providing the required 3D parameters like porosity, pore-size distribution, grain size, grain orientation, and surface analysis, the results of the 3D analysis can also be visualized, which enables to understand and interpret the analysis results in a straightforward way. The complementarities between high-quality X-ray CT images and flexible 3D software and its relation with the more traditional microscopical research techniques are opening up new gateways in the study of weathering processes of natural building stones., (Copyright © 2011 Wiley Periodicals, Inc.)
- Published
- 2011
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23. Shame and guilt in preschool depression: evidence for elevations in self-conscious emotions in depression as early as age 3.
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Luby J, Belden A, Sullivan J, Hayen R, McCadney A, and Spitznagel E
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- Anxiety psychology, Child, Preschool, Depressive Disorder etiology, Female, Humans, Male, Parents, Psychiatric Status Rating Scales, Regression Analysis, Sex Factors, Depressive Disorder psychology, Guilt, Shame
- Abstract
Background: Empirical findings from two divergent bodies of literature illustrate that depression can arise in the preschool period and that the complex self-conscious emotions of guilt and shame may develop normatively as early as age 3. Despite these related findings, few studies have examined whether the emotions of shame and guilt are salient in early childhood depression. This is important to further understand the emotional characteristics of preschool depression. Based on the hypothesis that preschool depression would be uniquely associated with higher levels of shame and maladaptive guilt, these emotions were investigated in a sample that included depressed, anxious, and disruptive disordered preschoolers as well as healthy peers using multiple methods., Method: Structured psychiatric diagnoses were derived in a sample of N = 305 preschoolers ascertained from community sites. Preschoolers' tendency to experience shame and guilt were explored using a story stem completion task coded by raters blind to symptoms and diagnosis of the subjects. Guilt experience and reparation behaviors were also measured using parent report., Results: Based on preschooler's emotion themes during the narrative tasks, gender, age, and depression severity predicted unique and significant portions of the variance in preschoolers' expressions of shame. Parent report measures revealed that increasing depression severity was associated with children's more frequent experiences of guilt feelings and less frequent attempts at guilt reparation (maladaptive guilt)., Conclusions: Findings demonstrated that high levels of shame and maladaptive guilt were related to preschool onset depression when using observational measures of children's internal representations of their self-conscious emotions as well as parent report. These findings demonstrate continuity of these core emotions of depression as early as age 3. These findings suggest that guilt and shame should be explored in clinical assessments of young children and may be an important focus for future studies of the developmental psychopathology of depression.
- Published
- 2009
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24. How to design a financial planning model.
- Author
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Hayen RL
- Subjects
- Models, Theoretical, Computers, Financial Management methods, Planning Techniques
- Abstract
Corporate planning models frequently consist of integrated pro forma income statements, statements of financial position, and cashflow statements. When implemented by utilizing computer-based planning systems, these models allow managers to explore potential decisions in 'what if?' planning analyses. The logic of an integrated financial statement planning model can be arranged following either a 'funds needed to balance approach' or a 'direct approach'. With a funds needed to balance approach total assets are set equal to total liabilities plus equities to satisfy this fundamental accounting identity. Logic in such models is often difficult to validate. In the direct approach, total assets are calculated independently of total liabilities plus equities providing an extremely strong test for model validation prior to using the model to assess 'what if' alternatives. In this paper, the author discusses the logic of integrated financial planning models and their implementation with computer-based planning systems. The funds need to balance approach and the direct approach are described and contrasted to assist corporate planners in evaluating and selecting a method for constructing the logic of corporate planning models.
- Published
- 1983
- Full Text
- View/download PDF
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