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358 results on '"Rossignol, Sylvie"'

22. Why geopolymers and alkali‐activated materials are key components of a sustainable world: A perspective contribution.

Author

Kriven, Waltraud M., Leonelli, Cristina, Provis, John L., Boccaccini, Aldo R., Attwell, Cyril, Ducman, Vilma S., Ferone, Claudio, Rossignol, Sylvie, Luukkonen, Tero, van Deventer, Jannie S. J., Emiliano, José V., and Lombardi, Jérôme E.

Subjects
CLIMATE change mitigation, CONSCIOUSNESS raising, SUSTAINABLE construction, TAX incentives, ECONOMIC models
Abstract

This perspective article delves into the transformative potential of alkali‐activated materials, acid‐activated materials, and geopolymers in mitigating climate change and market challenges. To harness the benefits of these materials, a comprehensive strategy is proposed. This strategy aims to integrate these materials into existing construction regulations, facilitate certification, and promote market access. Emphasizing research and innovation, the article advocates for, increased funding to refine the chemistry and production of these materials, prioritizing low‐cost alternatives and local waste materials. Collaboration between academia and industry is encouraged to expedite technological advances and broaden applications. This article also underscores the need to develop economic and business models emphasizing the long‐term benefits of these materials, including lower life‐cycle costs and reduced environmental impact. Incentivizing adoption through financial mechanisms like tax credits and subsidies is suggested. The strategy also includes scaling up production technology, fostering industrial collaboration for commercial viability, and developing global supply chains. Educational programs for professionals and regulators are recommended to enhance awareness and adoption. Additionally, comprehensive life‐cycle assessments are proposed to demonstrate environmental benefits. The strategy culminates in expanding the applications of these materials beyond construction, fostering international collaboration for knowledge sharing, and thus positioning these materials as essential for sustainable construction and climate change mitigation. [ABSTRACT FROM AUTHOR]

Published
2024
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37. Young XLH Patients-Reported Experience with a Supportive Care Program

Author

Rothenbuhler,Anya, Gueorguieva,Iva, Lichtenberger-Geslin,Lydia, Audrain,Christelle, Soskin,Sylvie, Bensignor,Candace, Rossignol,Sylvie, Bertholet-Thomas,Aurélia, Naudeau,Lorelei, Bacchetta,Justine, and Linglart,Agnès

Subjects
Patient Preference and Adherence
Abstract

Anya Rothenbuhler,1 Iva Gueorguieva,2 Lydia Lichtenberger-Geslin,3 Christelle Audrain,1 Sylvie Soskin,4 Candace Bensignor,5 Sylvie Rossignol,4 Aurélia Bertholet-Thomas,6 Lorelei Naudeau,7 Justine Bacchetta,6 Agnès Linglart1,8 1AP-HP, INSERM, Endocrinology and Diabetes for Children, Physiologie et Physiopathologie Endocriniennes, Reference Center for Rare Disorders of Calcium and Phosphate Metabolism, Filière OSCAR, and Platform of Expertise for Rare Disorders, ERN for Rare Endocrine Disorders and ERN BOND, Bicêtre Paris Saclay Hospital, Le Kremlin-Bicêtre, France; 2Pediatric Endocrine Unit Children’s Hospital Jeanne de Flandre, Lille University Hospital, Lille, France; 3Pediatric Department, Abbeville Hospital, Abbeville, France; 4Pediatric Department, Strasbourg University Hospital, Strasbourg, France; 5Departement of Endocrino-Pediatry, Dijon University Hospital, Dijon, France; 6Pediatric Nephrology, Rheumatology, and Dermatology Unit, Reference Center for Rare Diseases of Calcium and Phosphate Metabolism, Reference Center for Rare Renal Diseases, Filières Maladies Rares OSCAR ORKiD and ERK-Net, INSERM 1033, Hôpital Femme Mère Enfant, Faculté de Médecine Lyon Est, Bron, France; 7Patientys-Webhelp Medica, Boulogne-Billancourt, France; 8Paris Saclay University, Bicêtre Paris Saclay Hospital, Le Kremlin-Bicêtre, FranceCorrespondence: Lorelei Naudeau, Email lorelei.naudeau@gmail.comPurpose: X-linked hypophosphatemia (XLH) is a rare, chronic, genetic condition characterized by renal phosphate wasting and abnormal bone and teeth mineralization. It represents a challenging and multifaceted disease that causes wide-ranging impacts on patients’ lives. In this context, a scientific committee has designed a support initiative for patients treated for XLH: the aXess program. We sought to determine if a patient support program (PSP) could help XLH patients cope with their condition.Methods: During the 12 months of participation in the aXess program, XLH patients were contacted by phone by a nurse to coordinate their treatment, ensure treatment adherence, and provide motivational interviews. A Pediatric QOL inventory was conducted on all participants at enrollment (D0), at month 6, and month 12.Results: Altogether, a total of 59 patients were enrolled in the program. Most patients reported an improvement in QOL in all examined dimensions by month 12 (physical, emotional, social, and school, 85.4 ± 0.2 at month 12 versus 75.6 ± 0.3 at enrollment, p< 0.05). Patients were very satisfied with the program, with a mean overall satisfaction score of 9.8 ± 0.6 (on a scale from 0 to 10) at month 6 and 9.2 ± 1.5 at month 12.Conclusion: Our findings indicate that this program might improve the QOL for patients with chronic conditions such as XLH through patient education, therapy adherence, motivational interviews, and frequent follow-up. It links the home environment and overall illness management, bringing patients, families, and caregivers together.Keywords: XLH, patient support program, aXess support program, nurses, hypophosphatemia, quality of life, children

Published
2023

44. Moroccan clays for potential use as aluminosilicate precursors for geopolymer synthesis

Author

El Khomsi Anass, Ghaezouni Ameni, Idrissi kandri Noureddine, Zerouale Abdelaziz, and Rossignol Sylvie

Subjects
Environmental sciences, GE1-350
Abstract

Three Moroccan clays, denoted A1, A3 and A5, were sampled from the Fez region with the aim of potential use as aluminosilicate precursors for geopolymer synthesis. Each clay was subjected to calcination at 700 °C and analyzed using DTA/TG, grain size distribution measurements, XRD, and FTIR spectroscopy before and after heat treatment. The results showed that the three clays contain kaolinite in different proportions in addition to some associated minerals, such as quartz, hematite, calcite and dolomite. Heat treatment successfully activated the clay by the amorphization of kaolinite, which is essential for geopolymerization. Some other changes were observed in the associated minerals, especially carbonates, which partially or totally decomposed depending on the clay, while other minerals remained intact. The SBET and NBO values are in accordance with the degree of polymerization, and the obtention of consolidated materials is possible by alkali activation of the calcined clays.

Published
2021
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48. ROLE OF THE SYNTHESIS METHOD ON THE MICROSTRUCTURE AND MECHANICAL PROPERTIES OF METAKAOLIN-BASED POTASSIUM GEOPOLYMERS

Author

Xiaoxiao Gao, Emmanuel Joussein, Michaud Philippe, and Rossignol Sylvie

Subjects
Temperature effect, Curing condition, Compressive strength, Alkaline solution, Microstructure, Synthesis methodology, Clay industries. Ceramics. Glass, TP785-869
Abstract

The synthesis method used has an important effect on the development of the compressive strength of a material. This work aims to research the effect of synthesis temperature (30oC and 70oC), curing condition (dried and sealed curing) and alkaline solutions (Sc commercial alkaline solution and Sl laboratory alkaline solution) on the development of compressive strength. The microstructure of these geopolymers was characterized using thermal analysis as well as porosity and microscopic observations, and the results were discussed. The total porosity was found to play a negative role on the compressive strength. Synthesis at a lower temperature demonstrated a better compressive strength due to the lower porosity and smaller pore sizes. The Sl geopolymers showed a better compressive strength than the Sc geopolymers due to their lower porosity. It was also found that the reaction was hindered when the samples were cured under a dried curing condition.

Published
2014

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