Search

Your search keyword '"Elsen M"' showing total 125 results
Start Over Author "Elsen M"
125 results on '"Elsen M"'

1. Spin-Polarized Tunneling as a probe of (Ga,Mn)As electronic properties

Author

Elsen, M., Jaffres, H., Mattana, R., Thevenard, L., Lemaitre, A., and George, J. -M.

Subjects
Condensed Matter - Materials Science
Abstract

We present magnetic and tunnel transport properties of (Ga,Mn)As/(In,Ga)As/(Ga,Mn)As structure before and after adequate annealing procedure. The conjugate increase of magnetization and tunnel magnetoresistance obtained after annealing is shown to be associated to the increase of both exchange energy $\Delta$$_{exch}$ and hole concentration by reduction of the Mn interstitial atom in the top magnetic electrode. Through a 6x6 band k.p model, we established general phase diagrams of tunneling magnetoresistance (TMR) and tunneling anisotropic magnetoresistance (TAMR) \textit{vs.} (Ga,Mn)As Fermi energy (E$_F$) and spin-splitting parameter (B$_G$). This allows to give a rough estimation of the exchange energy $\Delta$$_{exch}$=6B$_G$$\simeq$120 meV and hole concentration p$\simeq1.10^{20}$cm$^{-3}$ of (Ga,Mn)As and beyond gives the general trend of TMR and TAMR \textit{vs.} the selected hole band involved in the tunneling transport., Comment: 6 pages, 4 figures. submitted to Phys. Rev. B

Published
2007

2. Interband scattering in MgB2

Author

Lobo, R. P. S. M., Elsen, M., Monod, P., Tu, J. J., Choi, Eun-Mi, Kim, Hyeong-Jin, Kang, W. N., Lee, Sung-Ik, Cava, R. J., and Carr, G. L.

Subjects
Condensed Matter - Superconductivity
Abstract

The scattering process responsible for connecting the bands remains one of the last open questions on the physical properties of MgB2. Through the analysis of the equilibrium and photo-induced far-infrared properties as well as electron spin resonance of MgB2 we propose a phonon mediated energy transfer process between the bands based on the coupling of quasiparticles to an E2g phonon., Comment: 6 pages 2 figures included. Submitted to NATO Advanced Research Workshop Proceedings (Miami January 2004)

Published
2004

3. Interband Scattering in MgB2

Author

Lobo, R.P.S.M., Elsen, M., Monod, P., Tu, J.J., Choi, Eun-Mi, Kim, Hyeong-Jin, Kang, W. N., Lee, Sung-Ik, Cava, R.J., Carr, G.L., Ashkenazi, J., editor, Eremin, Mikhail V., editor, Cohn, Joshua L., editor, Eremin, Ilya, editor, Manske, Dirk, editor, Pavuna, Davor, editor, and Zuo, Fulin, editor

Published
2005
Full Text
View/download PDF

4. Betalingsbereidheid van consumenten voor duurzame(re) producten

Author

Elsen, M., Akker, K. van den, Elsen, M., and Akker, K. van den

Abstract

Uit de Agro-Nutri Monitor 2020 kwam naar voren dat de betalingsbereidheid van consumenten voor duurzamere productvarianten mogelijk een belangrijke belemmering vormt voor verder verduurzaming van de voedselproductie. Het doel van dit onderzoek was om meer inzicht te krijgen in deze betalingsbereidheid voor duurzamere alternatieven, en hoe deze verhoogd kan worden. Daarbij is onderscheid gemaakt tussen twee typen duurzamere producten: gangbare producten met een keurmerk, zoals het On the way to Planet Proof keurmerk, en biologische producten die het Europese biokeurmerk dragen. Duurzaamheidskeurmerken maken het mogelijk voor consumenten om duurzamere alternatieven binnen een productassortiment te identificeren. Deze duurzamere producten zijn over het algemeen duurder dan producten zonder keurmerk die aan minder zware duurzaamheidseisen hoeven te voldoen. Een gebrek aan kennis over wat keurmerken precies betekenen en de beschikbaarheid van relatief goedkope alternatieven zonder keurmerk vormen mogelijk belangrijke barrières voor duurzamere productkeuzes. In het huidige onderzoek is daarom onderzocht of en hoe de betalingsbereidheid voor duurzamere producten verandert (1) wanneer aanvullende informatie gegeven wordt over de duurzaamheidsaspecten van keurmerken (informatie-interventie), en (2) wanneer de duurzaamheid en prijs van producten zonder keurmerk stijgen door strengere wettelijke duurzaamheidseisen (productinterventie).

Published
2021

8. Acute/Chronic respiratory failure

Author

De La Cruz, C., Criado, A., Diaz, L., Seiz, A., Vidaur, P. L., Fraile, J. R., Filos, K. S., Goudas, L. C., Dougenis, D., Tassoudis, V., Patroni, O., Winkler, W. -B., Karnik, R., Seelmann, O., Havlicek, J., Stany, J., Becker, H., Peter, J. H., Pitzer, W., Schneider, H., Wichert, P. V., De Blasi R. A., Conti G., Mattia C., Mega A. M., Ferrari M., Gasparetto A., Steltzer, H., Hiesmayr, M., Krafft, P., Petcold, R., Strasser, K., Hammerle, A. F., Capellier, G., Liauw, S., Wintoh, T., Marshall, J., Demajo, W., Barale, F., Walker, P. M., Dugernier, T., Laterre, P. F., Deby-Dupont, G., Lamy, M., Reynaert, M. S., Navarrete, P., Vázquez, G., Rivera, R., Fernandez, E., Mérida, A., Boch, J. N., Eibenberger, K., Herold, C., Schlick, W., van der Heijde, R. M. J. L., Grotjohan, H. P., Versprille, A., Wagenvoort, C. A., Raijmakers, P. G. H. M., Groeneveld, A. B. J., Schneider, A. J., Rauwerda, J. A., Teule, G. J. J., Thija, L. G., Singer, M., Vermaat, J., Hall, G., Latter, G., Patel, M., Jansen, J. R. C., Bordet, F., Mercatello, A., Coronel, B., Bret, M., Tlgaud, J. D., Archimbaud, E., Moskovtchenko, J. F., Gregorakos, L., Katsanos, Ch., Michalopoulos, A., Malessios, V., Mavropanou, D., Nicolopoulos, J., Karageorgiou, K., Tognet, E., Polo, P., Devaux, Y., Fière, D., Valta, P., Takala, J., De Blasio, F., Iannuzzi, E., De Sio, A., Ferraro, F., Schiraldi, F., Mostarda, G. F., Spannbrucker, N., Kiesow, U., Kleinschmidt, R., Reper, P., Marion, E., Van Hille, F., De Neef, H., Heymans, W., Ysebaert, D., Van Hoof, R., Vanderkelen, A., Elsen, M., Gregoretti, C., Beltrame, F., Conti, G., Burbi, L., Antonaglia, V., Lucangelo, U., Biolino, P., Giugiaro, P. M., Sasso, F., Schneider H., Becker H., Cassel W., Peter J. H., von Wichert P., Ludwigs, Ulf, Klingstedt, Christer, Baehrendtz, Svante, Hedenstierna, Göran, Gomez V., De la Casa R., Anon J. M., Pascual C., Jimenez M., Yus S., Angouridakis, P., Sofianos, B., Anastasaki, M., Frantzeskos, G., Askitopoelou, B., Priem, R., Schultheiss, R., Cedzich, C., Rabbat, A., Garrouste, M. T., Nahmias, G., Le Gall, J. R., Schlemmer, B., Wegenius, Göran, Matte, P., Jacquet, L., Ceriani, R., Goenen, M., Roeseler, J., Palavecino, L., Dougnac, A., Reynaert, H., Avila, A., Oliphant, L., Ward, C., Spitzer, Sh., Fink, G., Putensen, C., Leon, M., and Putensen-Himmer, G.

Published
1992
Full Text
View/download PDF

12. Thin and thicker slices : How advertising effectiveness depends on exposure duration

Author

Elsen, M.

Abstract

Consumers are exposed to rising numbers of ads for which they have falling amounts of time. This poses a serious challenge for advertisers and ad agencies who want to engage consumers with their ads, create positive impressions and build memory for their ads and brands. The bulk of ads in crowded media such as magazines, the Internet and outdoor media receive only a quick glance. And even if people decide to stop and take a closer look, attention is only a few seconds at most. Yet, whereas much is known about advertising processing and effectiveness after long exposures from about 5 seconds upwards and after brief exposures up to 30 milliseconds, surprisingly little is known about what happens in between these two extremes. This dissertation aims to contribute to closing this knowledge gap. It examines ads that differ in the extent to which they are representative (typical) for the advertised product category. Three empirical chapters demonstrate the decisive role that exposure duration plays in attitude and memory effects of typical and atypical ads, even within the range of a few seconds.

Published
2012

13. Laparoscopically inserted button colostomy as a venting stoma and access port for the administration of antegrade enemas in African degenerative leiomyopathy

Author

Milind Chitnis, Lazarus, C., Simango, I., Elsen, M., Rensburg, C., Delft, D., and Trollope, L. T.

Subjects
digestive system diseases
Abstract

African degenerative leiomyopathy (ADL) is a rare incurable disorder seen in African children, predominantly in southern and south-eastern Africa. ADL presents as chronic intestinal pseudo-obstruction. Management is traditionally conservative, with surgery restricted to the management of complications. We have placed Malone antegrade continence enema (MACE) stomas in the grossly dilated colon to vent accumulated gas and administer antegrade bowel enemas. This is done mainly for relief of gaseous distension and constipation in an attempt to provide symptomatic relief and improve quality of life. In this article, we present our preliminary results of laparoscopically assisted technique to insert a Mic-Key gastrostomy device as a ‘button colostomy’ in 8 patients over the past 6½ years.

Published
2011

14. Evaluating the societal relevance of academic research: a guide

Author

Maasen van den Brink, H., de Haas, M., van den Heuvel, J., Spaapen, J., Elsen, M., Westenbring, R., van den Besselaar, P.A.A., van der Meulen, B., van Drooge, L., Organization Sciences [until 2010], Strategizing for Opportunities, and Initiatives, networks and community building (SfO)

Published
2010

16. Chemical profile and magnetoresistance of Ga1−x Mnx As/GaAs/AlAs/GaAs/ Ga1−x Mnx As tunnel junctions

Author

Mattana, R., Elsen, M., George, J., Jaffres, H., Van Dau, F. Nguyen, Fert, A., Wyczisk, M., Olivier, J., Galtier, P., Lépine, Bruno, Guivarc’h, A., Jézéquel, G., Unité mixte de physique CNRS/Thales (UMPhy CNRS/THALES), Centre National de la Recherche Scientifique (CNRS)-THALES, Laboratoire de physique des solides et de cristallogénèse (LPSC), Université de Versailles Saint-Quentin-en-Yvelines (UVSQ)-Centre National de la Recherche Scientifique (CNRS), Institut de Physique de Rennes (IPR), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS), THALES [France]-Centre National de la Recherche Scientifique (CNRS), and Université de Rennes (UR)-Centre National de la Recherche Scientifique (CNRS)

Subjects
[PHYS]Physics [physics], [PHYS.COND]Physics [physics]/Condensed Matter [cond-mat], ComputingMilieux_MISCELLANEOUS
Abstract

International audience

Published
2005

17. Interband Scattering in MgB2

Author

Lobo, R.P.S.M., primary, Elsen, M., additional, Monod, P., additional, Tu, J.J., additional, Choi, Eun-Mi, additional, Kim, Hyeong-Jin, additional, Kang, W. N., additional, Lee, Sung-Ik, additional, Cava, R.J., additional, and Carr, G.L., additional

Full Text
View/download PDF

20. Report on active and planned spacecraft and experiments

Author

Schofield, N. J., Jr, Littlefield, R. G, and Elsen, M. F

Subjects
Astronautics (General)
Abstract

This report provides the professional community with information on current and planned spacecraft activity (including both free-flying spacecraft and Shuttle-attached payloads) for a broad range of scientific disciplines. By providing a brief description of each spacecraft and experiment as well as its current status, it is hoped that this document will be useful to many people interested in the scientific, applied, and operational uses of the data collected. Furthermore, for those investigators who are planning or coordinating future observational programs employing a number of different techniques such as rockets, balloons, aircraft, ships, and buoys, this document can provide some insight into the contributions that may be provided by orbiting instruments. The document includes information concerning active and planned spacecraft and experiments. The information covers a wide range of scientific disciplines: astronomy, earth sciences, meteorology, planetary sciences, aeronomy, particles and fields, solar physics, life sciences, and material sciences. These spacecraft projects represent the efforts and funding of individual countries, as well as cooperative arrangements among different countries.

Published
1985

28. Free to total prostate-specific antigen (PSA) ratio is superior to total-PSA in differentiating benign prostate hypertrophy from prostate cancer

Author

UCL - MD/CHIR - Département de chirurgie, Van Cangh, Paul, De Nayer, Philippe, Sauvage, P., Tombal, Bertrand, Elsen, M., Lorge, Francis, Opsomer, Reinier-Jacques, Wese, François-Xavier, 1st International Consultation on Prostate Cancer, UCL - MD/CHIR - Département de chirurgie, Van Cangh, Paul, De Nayer, Philippe, Sauvage, P., Tombal, Bertrand, Elsen, M., Lorge, Francis, Opsomer, Reinier-Jacques, Wese, François-Xavier, and 1st International Consultation on Prostate Cancer

Abstract

BACKGROUND. Serum prostate-specific antigen (PSA) exists in different molecular forms, and their respective concentration has been proposed as a useful tool to improve discrimination between benign prostatic hypertrophy (BPH) and prostate cancer (PC). METHODS. The relevance of the free to total PSA ratio was prospectively studied in a selected urology clinic population of 420 patients. Total serum PSA ranged from 2.1 to 30 ng/ml; 154 had PC and 266 had BPH. RESULTS. Receiver operating characteristic (ROC) curves were constructed for the total population (total-PSA range from 2.1 to 30 ng/ml) and for the diagnostic gray zone of 2.1-10 ng/ml. For the two groups, the free to total PSA ratio had a higher specificity than total-PSA for all sensitivity levels. Cut-off values were found to vary with prostate weight. CONCLUSIONS. Although free to total PSA ratio demonstrated better performances than total-PSA, its use in screening appears problematic, due to the low prevalence of prostate cancer. (C) 1996 Wiley-Liss, Inc.

Published
1996

29. In vivo depletion of xenoreactive natural antibodies with an anti-mu monoclonal antibody.

Author

UCL - MD/MIGE - Département de microbiologie, d'immunologie et de génétique, Soares, M P, Latinne, Dominique, Elsen, M., Figueroa, J, Bach, F H, Bazin, Hervé, UCL - MD/MIGE - Département de microbiologie, d'immunologie et de génétique, Soares, M P, Latinne, Dominique, Elsen, M., Figueroa, J, Bach, F H, and Bazin, Hervé

Abstract

Hyperacute rejection of vascularized discordant xenografts, such as pig-to-primate kidney or heart xenotransplants, is thought to be mediated by xenoreactive natural antibodies (XNA) of the IgM isotype and the activation of the classic pathway of complement. Using the guinea pig-to-rat discordant xenograft model, we have developed a potential therapeutic protocol leading to long-term depletion of circulating IgM in adult animals. This protocol consists of the injection into adult LOU/C rats of an antirat IgM MAb (MARM-7) after splenectomy, plasma exchange, and the administration of an anti-B cell immunosuppressant, mycophenylate mofetil (RS61443). Splectomized plasma exchanged adult rats receiving RS61443 showed strongly decreased IgG and IgM serum concentrations for a relatively short period during which these isotypes remained nevertheless detectable by a sensitive ELISA technique. In contrast to IgM, IgG in serum returned, shortly after the end of this treatment, to normal concentrations. Splenectomy alone was able to significantly decrease, for a long period (more than 70 days), IgM but not IgG serum concentrations in these rats. During this treatment, IgM XNA concentration mirrored total IgM. The injection of MARM-7 MAb to adult LOU/C rats was able to deplete circulating IgM and IgM XNA for a period of several weeks during which IgM was undetectable by a sensitive ELISA technique. Depletion time was dose-dependent--the higher the dose of injected MARM-7, the longer the period for which IgM and IgM XNA remained undetectable. Moreover depletion of circulating IgM was correlated with the detection in the serum of these rats of noncomplexed, free MARM-7. Finally, MARM-7 administration was significantly more efficacious in rats that had decreased levels of circulating IgM after splenectomy, plasma exchange, and administration of RS61443. These experiments suggest that the anti-mu approach may allow depletion of IgM XNA for a sufficiently long period to test the hypo

Published
1993

30. Isotype characterization of rat preformed natural antibodies against guinea pig cells.

Author

UCL - SC/BIOL - Département de biologie, UCL - MD/CHIR - Département de chirurgie, Soares, M., Reding, Raymond, Latinne, Dominique, Elsen, M., Kinard, Fabienne, Lambotte, Luc, Otte, Jean-Bernard, Bazin, Hervé, UCL - SC/BIOL - Département de biologie, UCL - MD/CHIR - Département de chirurgie, Soares, M., Reding, Raymond, Latinne, Dominique, Elsen, M., Kinard, Fabienne, Lambotte, Luc, Otte, Jean-Bernard, and Bazin, Hervé

Published
1992

39. Halothane affects ventilatory afterdischarge in humans.

Author

Dahan, A, van den Elsen, M J, Berkenbosch, A, DeGoede, J, Olievier, I C, and van Kleef, J W

Abstract

In awake humans, when ventilatory stimulation is suddenly removed, the subsequent change in minute ventilation (which remains at higher levels for longer times than expected from the dynamics of the chemoreceptors) is termed ventilatory after discharge. In this study we investigated the effects of subanaesthetic concentrations of halothane on afterdischarge. The ventilatory pattern after sudden termination of brief periods (90-180 s) of isocapnic hypoxia (PE'cO2 approximately 0.1 kPa above initial resting values; PE'O2 6.5 kPa) by normoxia (PE'O2 14 kPa) was determined in healthy volunteers. Six subjects underwent 13 studies without halothane (control) and six others 10 studies during inhalation of 0.22% halothane. Isocapnic hypoxia caused a mean increase in ventilation of 10.8 (SD 2.4) litre min-1 in the control and 4.2 (2.4) litre min-1 in the halothane studies (P < 0.01). The transition to normoxia caused a slow ventilatory decay in the control and a fast decay in the halothane groups: the interval that occurred between the "last hypoxic" breath and the time required for ventilation to return to 110% of baseline was 60.7 (23) s for the control and 12.3 (6.0) s for the halothane studies (P < 0.05). Taking into consideration the different factors that determine the pattern of breathing immediately after termination of a brief period of hypoxia by normoxia (PE'O2 waveform, transport delay time between lungs and carotid bodies, time constant of the peripheral chemoreflex loop and afterdischarge), the faster ventilatory decay observed with halothane is probably related to suppression of afterdischarge.(ABSTRACT TRUNCATED AT 250 WORDS)

Published
1995
Full Text
View/download PDF

Catalog

Books, media, physical & digital resources
See catalog results