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220 results on '"DUPAS, G."'

3. Growth of YbSb2/GaSb(001) and GaSb/YbSb2/GaSb(001) heterostructures by molecular beam epitaxy

Author

Guivarc'h, A., Ballini, Y., Auvray, P., Caulet, J., Minier, M., Dupas, G., and Ropars, G.

Subjects
Molecular beams -- Research, Epitaxy -- Analysis, Semiconductors -- Research, Physics
Abstract

Molecular beam epitaxy is used to develop single YbSb2 crystal films on GaSb. YbSb2 films have a resistivity of 40 microomega and show metallic characteristics. Orientation of the Sb dangling bonds on the surface of GaSb affects the direction of the YbSb2 films. The influence of the lattice mismatches in the direction of growth and in the basal plane.

Published
1993

4. Ion channeling study of Scx(Yb,Er)1-xAs films on GaAs(001)

Author

Guivarc'h, A., Ballini, Y., Minier, M., Guenais, B., Dupas, G., Ropars, G., and Regreny, A.

Subjects
Rare earth metals -- Research, Gallium arsenide semiconductors -- Research, Backscattering -- Analysis, Channeling (Physics) -- Analysis, Physics
Abstract

The various lattice matched and mismatched ScxYb1-xAs and ScyEr1-yAs films grown on GaAs(001) were studied. Helium ion backscattering and ion channeling experiments were performed on epitaxially-prepared samples to determine the effects of the mosaic structures and the tilts caused by strain relaxation on the aligned spectra. Results show that the aligned spectra is sensitive to the mosaic structures of the rare-earth monoarsenide layers and to their eventual tilt.

Published
1993

5. Deciding case by case on family presence in the emergency care service

Author

Da-Silva-Barreto, M. (Mayckel), Silva-Marcon, S. (Sonia), Garcia-Vivar, C. (Cristina), Ribeiro-Furlan, M.C. (Mara Cristina), Rissardo, L.K. (Leidyani Karina), Lourenço-Haddad, M. (Maria), Dupas, G. (Giselle), and Misue-Matsuda, L. (Laura)

Subjects
Emergency medical services, Servicios médicos de urgencia, Personal de salud, Health personnel, Pessoal de saúde, Enfermería de urgencia, Family nursing, Emergency nursing, Family, Família, Serviços médicos de emergência, Familia, Enfermagem em emergência, Enfermería de la familia, Enfermagem familiar
Abstract

Objective: To understand how physicians and nurses experience and perceive the presence of families in the emergency care service. Methods: This was a qualitative study that used symbolic interactionism as a theoretical reference, and grounded theory as a methodological reference. Twenty professionals participated – equally representing physicians and nurses - working in two emergency rooms located in the south of Brazil. Data were collected between October of 2016 and February of 2017, by means of interviews. Results: The existence of a social culture of family exclusion was identifi ed, widely diffused and practiced by professionals. However, families sometimes remain with their loved ones in the emergency room, since professionals analyze and decide “case by case”, considering different aspects throughout the care process. Conclusion: Multiple aspects are related in determining family presence during emergency care for physicians and nurses. Thus, a single directive on the presence of the family is not prudent. In fact, it is suggested that each health unit develop its protocols, considering local particularities. Objetivo: Compreender como médicos e enfermeiros vivenciam e percebem a presença da família no serviço de atendimento emergencial. Métodos: Estudo qualitativo que utilizou o Interacionismo Simbólico como referencial teórico e a Teoria Fundamentada nos Dados como referencial metodológico. Participaram 20 profi ssionais – divididos equitativamente entre médicos e enfermeiros – que atuavam em duas Salas de Emergência localizadas no Sul do Brasil. Os dados foram coletados entre outubro de 2016 e fevereiro de 2017, por meio de entrevistas. Resultados: Identifi cou-se a existência de uma cultura social de exclusão familiar, amplamente difundida e praticada pelos profi ssionais. Contudo, às vezes, as famílias permanecem com seus entes queridos na Sala de Emergência, visto que os profi ssionais analisam e decidem “caso a caso”, considerando diferentes aspectos ao longo do processo assistencial. Conclusão: Para médicos e enfermeiros múltiplos aspectos estão relacionados na determinação da presença familiar durante o atendimento emergencial. Assim, não é aconselhável uma diretiva única para a presença da família. Em realidade, sugere-se que cada unidade de saúde elabore seus protocolos considerando as particularidades locais. Objetivo: Comprender cómo médicos y enfermeros experimentan y perciben la presencia familiar en el servicio de atención de urgencias. Métodos: Estudio cualitativo, aplicando el Interaccionismo Simbólico como referencial teórico, y la Teoría Fundamentada en los Datos como referencial metodológico. Participaron 20 profesionales –equitativamente divididos entre médicos y enfermeros– actuantes en dos Servicios de Urgencias del Sur de Brasil. Datos recolectados de octubre 2016 a febrero 2017 mediante entrevistas. Resultados: Se identifi có la existencia de una cultura social de exclusión familiar, ampliamente difundida y practicada por los profesionales. Igualmente, a veces, las familias permanecen con sus seres queridos en el Servicio de Urgencias, dado que los profesionales analizan y deciden “caso por caso”, considerando diferentes aspectos a lo largo del proceso de atención. Conclusión: Para médicos y enfermeros, múltiples aspectos se relacionan con la determinación de la presencia familiar durante la atención de urgencia. Por ello, no es aconsejable una directiva única sobre presencia familiar. En realidad, se sugiere que cada unidad de salud elabore sus protocolos considerando sus propias características.

Published
2018

7. Diethylzinc-mediated one-step stereoselective synthesis of [alpha]-fluoroacrylates from aldehydes and ketones: two different pathways depending on the carbonyl partner

Author

Lemonnier, G., Zoute, L., Dupas, G., Quirion, J.-C., and Jubault, P.

Subjects
Aldehydes -- Chemical properties, Aldehydes -- Structure, Carbonyl compounds -- Chemical properties, Carbonyl compounds -- Structure, Ketones -- Chemical properties, Ketones -- Structure, Biological sciences, Chemistry
Abstract

An efficient method is developed that has allowed the one-pot stereoselective synthesis of [alpha]-fluoroacrylates, which is based on the addition of ethyl dibromofluoroacetate to a carbonyl derivative using diethylzinc as organometallic mediator. Two different pathways are identified depending on the carbonyl partner and in the case of aldehydes, an E2-type mechanism is identifies, whereas ketones go through an E1cb-type mechanism.

Published
2009

8. Growth of YbSb2/GaSb(001) and GaSb/YbSb2/GaSb(001) heterostructures by molecular beam epitaxy.

Author

Guivarc’h, A., Ballini, Y., Auvray, P., Caulet, J., Minier, M., Dupas, G., and Ropars, G.

Subjects
THIN films, MOLECULAR beam epitaxy, NUCLEATION, GALLIUM arsenide
Abstract

Deals with the growth by molecular beam epitaxy of YbSb[sub2] (010) single crystal films on GaSb(001). Characteristics of YbSb[sub2] films; Effects of lattice mismatches on basal plane and growth direction of the crystal films; Causes of defect nucleation in gallium arsenide overgrown layers.

Published
1993

9. Ion channeling study of Scx(Yb,Er)1-xAs films on GaAs (001).

Author

Guivarc’h, A., Ballini, Y., Minier, M., Guenais, B., Dupas, G., Ropars, G., and Regreny, A.

Subjects
ION channels, SEMIMETALS, RARE earth metals, HETEROSTRUCTURES
Abstract

Focuses on a study on ion channeling study of Sc[subx](Yb,Er)[sub1-x]As films on GaAs (001). Introduction to semimetallic rare-earth monoarsenides; Experimental setup; Characteristics of lattice matched Sc[sub0.2]Yb[sub0.8]As/GaAs (001) heterostructures.

Published
1993

11. Influence of the degree of dietary fatty acid unsaturation on rumen fermentation parameters

Author

Giger-Reverdin, Sylvie, Le Pierres, J.L., Duvaux-Ponter, Christine, MORAND-FEHR, P., Tessier, Joseph-Alexandre, Dupas, G., Martin, Olivier, Rouzeau, A., Sauvant, Daniel, Physiologie de la Nutrition et Alimentation (PNA), Institut National Agronomique Paris-Grignon (INA P-G)-Institut National de la Recherche Agronomique (INRA), and Institut National de la Recherche Agronomique (INRA)-Institut National Agronomique Paris-Grignon (INA P-G)

Subjects
rumen, ration alimentaire, acide gras, oléagineux, [SDV]Life Sciences [q-bio], ruminant, lin, régime alimentaire, nutrition, insaturation, graine oléagineuse, [INFO]Computer Science [cs], caprin, COLZA
Abstract

Proceedings of the 9th seminar of Sub-Network on Nutrition of the FAO-CIHEAM Inter-Regional Cooperative Research and Development Network on Sheep and Goats. “Nutrition and feeding strategies of sheep and goats under harsh climates”. Hammamet, TUN (2001-11-08 - 2001-11-10); International audience

Published
2004

12. Influence of the degree of dietary fatty acids unsaturation on rumen fermentation parameters

Author

Giger-Reverdin, Sylvie, Le Pierres, J.L., Rouzeau, A., Dupas, G., Duvaux-Ponter, Christine, Martin, Olivier, Morand-Fehr, P., Sauvant, Daniel, Physiologie de la Nutrition et Alimentation (PNA), Institut National de la Recherche Agronomique (INRA)-Institut National Agronomique Paris-Grignon (INA P-G), and ProdInra, Migration

Subjects
[SDV] Life Sciences [q-bio], ALIMENTATION DES ANIMAUX, [SDV]Life Sciences [q-bio], [INFO]Computer Science [cs], [INFO] Computer Science [cs], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2001

13. Chiral ditopic receptors. Application to palladium-catalyzed allylic alkylation

Author

Bourguignon, J., Bremberg, U., Dupas, G., Hallman, K., Hagberg, L., Hortala, L., Levacher, V., Lutsenko, S., Macedo, E., Moberg, Christina, Queguiner, G., Rahm, F., Bourguignon, J., Bremberg, U., Dupas, G., Hallman, K., Hagberg, L., Hortala, L., Levacher, V., Lutsenko, S., Macedo, E., Moberg, Christina, Queguiner, G., and Rahm, F.

Abstract

Chiral pyridinooxazoline, quinolinooxazoline, bis(oxazolino)pyridine (pybox), and bisoxazoline (box) derivatives containing crown ether residues were prepared. Some of the ligands were assessed in substrate binding studies and in palladium catalyzed allylic alkylations., QC 20100525

Published
2003
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26. Acyl transfer of 8-acetoxy-2-oxazolinylquinoline assisted by hydrogen bonding formation

Author

Hortala, L., Moberg, Christina, Levacher, V., Bourguignon, J., Dupas, G., Hortala, L., Moberg, Christina, Levacher, V., Bourguignon, J., and Dupas, G.

Abstract

A significant acceleration of acyl transfer has been achieved on 8-acetoxy-2-oxazolinylquinoline in the presence of benzylamine. Comparison of the aminolysis by the new acylating reagent with that of 8-acetoxyquinoline and 8-acetoxyquinoline-2-carbonitrile has been carried out. The results of these experiments suggest that the proximity of a supplementary basic atom to the ester group increases the participation effect of the basic site mainly by formation of a possible second hydrogen bond. The association constant of benzylamine into the basic cavity of 8-methoxy-2-oxazolinylquinoline (K-d = 80 M-1) has been measured by H-1 NMR titration experiments., QC 20100525

Published
2002
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50. Suffering eases over time: the experience of families in the care of children with congenital anomalies.

Author

Guiller CA, Dupas G, and Pettengill MAM

Abstract

This study aimed to understand the experience of caring for a child with a congenital anomaly from the family's perspective. Symbolic Interactionism and Grounded Theory were the theoretical and methodological references, respectively. Data collection was carried out with eight families with children having congenital anomalies through semi-structured interviews and participating observation. Data analysis reached axial coding. Results revealed two phenomena in the experience of families in delivering care to children with congenital anomalies - Facing an initially difficult experience and suffering eases over time. We concluded that the understanding of this experience supports the need to reconsider the nursing care provided to families in the care of children with congenital anomalies. [ABSTRACT FROM AUTHOR]

Published
2009
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