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2. THz Transient Photoconductivity of the III-V Dilute Nitride GaPAsN

Author

Heyman, J. N., Weiss, E. M., Rollag, J. R., Yu, K. M., Dubon, O. D., Kuang, Y. J., Tu, C. W., and Walukiewicz, W.

Subjects
Condensed Matter - Materials Science
Abstract

THz Time-Resolved Photoconductivity is used to probe carrier dynamics in the dilute III-V nitride GaP0.49As0.47N0.036. In these measurements a femtosecond optical pump-pulse excites electron-hole pairs, and a delayed THz pulse measures the change in conductivity. We find the photoconductivity is dominated by localized carriers. The decay of photoconductivity after excitation is consistent with bimolecular electron-hole recombination with recombination constant r = 3.2E-8 +/-0.8E-8 cm3/s. We discuss the implications for applications in solar energy., Comment: 12 pages, 4 figures

Published
2018
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4. Spatial correlations in bed load transport: evidence, importance, and modelling

Author

Heyman, J., Ma, H. B., Mettra, F., and Ancey, C.

Subjects
Physics - Geophysics, Physics - Fluid Dynamics
Abstract

This article examines the spatial {dynamics of bed load particles} in water. We focus particularly on the fluctuations of particle activity, which is defined as the number of moving particles per unit bed {length}. Based on a stochastic model recently proposed by \citet{Ancey2013}, we derive the second moment of particle activity analytically; that is the spatial correlation functions of particle activity. From these expressions, we show that large moving particle clusters can develop spatially. Also, we provide evidence that fluctuations of particle activity are scale-dependent. Two characteristic lengths emerge from the model: a saturation length $\ell_{sat}$ describing the length needed for a perturbation in particle activity to relax to the homogeneous solution, and a correlation length $\ell_c$ describing the typical size of moving particle clusters. A dimensionless P\'eclet number can also be defined according to the transport model. Three different experimental data sets are used to test the theoretical results. We show that the stochastic model describes spatial patterns of particle activity well at all scales. In particular, we show that $\ell_c$ and $\ell_{sat}$ may be relatively large compared to typical scales encountered in bed load experiments (grain diameter, water depth, bed form wavelength, flume length...) suggesting that the spatial fluctuations of particle activity have a non-negligible impact on the average transport process.

Published
2016
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5. Statistics of bedload transport over steep slopes: Separation of time scales and collective motion

Author

Heyman, J., Mettra, F., Ma, H. B., and Ancey, C.

Subjects
Physics - Geophysics, Statistics - Applications
Abstract

Steep slope streams show large fluctuations of sediment discharge across several time scales. These fluctuations may be inherent to the internal dynamics of the sediment transport process. A probabilistic framework thus seems appropriate to analyze such a process. In this letter, we present an experimental study of bedload transport over a steep slope flume for small to moderate Shields numbers. The sampling technique allows the acquisition of high-resolution time series of the solid discharge. The resolved time scales range from $10^{-2}$s up to $10^{5}$s. We show that two distinct time scales can be observed in the probability density function for the waiting time between moving particles. We make the point that the separation of time scales is related to collective dynamics. Proper statistics of a Markov process including collective entrainment are derived. The separation of time scales is recovered theoretically for low entrainment rates.

Published
2016
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6. Compressibility regularizes the '$\mu(I)$' rheology for granular flows

Author

Heyman, J., Delannay, R., Tabuteau, H., and Valance, A.

Subjects
Condensed Matter - Disordered Systems and Neural Networks, Condensed Matter - Soft Condensed Matter
Abstract

The $\mu(I)$-rheology has been recently proposed as a potential candidate to model the flow of frictional grains in a dense inertial regime. However, this rheology was shown to be ill-posed in the mathematical sense for a large range of parameters, notably in the slow and fast flow limits \citep{Barker2015}. In this rapid communication, we extend the stability analysis to compressible flows. We show that compressibility regularizes mostly the equations, making them well-posed for all parameters, at the condition that sufficient dissipation is associated with volume changes. In addition to the usual Coulomb shear friction coefficient $\mu$, we introduce a bulk friction coefficient $\mu_b$, associated to volume changes and show that the equations are well-posed in two dimensions if $\mu_b>2-2\mu$ ($\mu_b>3-7\mu/2$ in three dimensions). Moreover, we show that the ill-posed domain defined in \citep{Barker2015} transforms into a domain where the equations are unstable but stay well-posed when compressibility is taken into account. These results suggest thus the importance of compressibility in dense granular flows.

Published
2016
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7. Carrier Lifetimes in a III-V-N Intermediate Band Semiconductor

Author

Heyman, J. N., Schwartzberg, A. M., Yu, K. M., Luce, A. V., Dubon, O. D., Kuang, Y. J., Tu, C. W., and Walukiewicz, W.

Subjects
Condensed Matter - Materials Science
Abstract

We have used transient absorption spectroscopy to measure carrier lifetimes in the multiband band semiconductor GaPAsN. These measurements probe the electron populations in the conduction band, intermediate band and valance band as a function of time after an excitation pulse. Following photoexcitation of GaP0.32As0.67N0.01 we find that the electron population in the conduction band decays exponentially with a time constant 23ps. The electron population in the intermediate band exhibits bimolecular recombination with recombination constant r = 2 10^-8 cm-3/s. In our experiment an optical pump pulse excited electrons from the valance band to the intermediate and conduction bands, and the change in interband absorption due to absorption saturation and induced absorption was probed with a delayed white light pulse. We modeled the optical properties of our samples using the band anti-crossing model to extract carrier densities as a function of time. These results indicate that the minority carrier lifetimes are too short for efficient solar power conversion and that improvements in material quality will be required for practical applications of GaPAsN based intermediate band solar cells., Comment: 15 pages, 7 figures

Published
2016
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8. Entrainment, motion and deposition of coarse particles transported by water over a sloping mobile bed

Author

Heyman, J., Bohorquez, P., and Ancey, C.

Subjects
Physics - Fluid Dynamics
Abstract

In gravel-bed rivers, bedload transport exhibits considerable variability in time and space. Recently, stochastic bedload transport theories have been developed to address the mechanisms and effects of bedload transport fluctuations. Stochastic models involve parameters such as particle diffusivity, entrainment and deposition rates. The lack of hard information on how these parameters vary with flow conditions is a clear impediment to their application to real-world scenarios. In this paper, we determined the closure equations for the above parameters from laboratory experiments. We focused on shallow supercritical flow on a sloping mobile bed in straight channels, a setting that was representative of flow conditions in mountain rivers. Experiments were run at low sediment transport rates under steady nonuniform flow conditions (i.e., the water discharge was kept constant, but bedforms developed and migrated upstream, making flow nonuniform). Using image processing, we reconstructed particle paths to deduce the particle velocity and its probability distribution, particle diffusivity, and rates of deposition and entrainment. We found that on average, particle acceleration, velocity and deposition rate were responsive to local flow conditions, whereas entrainment rate depended strongly on local bed activity. Particle diffusivity varied linearly with the depth-averaged flow velocity. The empirical probability distribution of particle velocity was well approximated by a Gaussian distribution when all particle positions were considered together. In contrast, the particles located in close vicinity to the bed had exponentially distributed velocities. Our experimental results provide closure equations for stochastic or deterministic bedload transport models., Comment: Submitted to Journal of Geophysical Research

Published
2016
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9. Mixing as a correlated aggregation process.

Author

Heyman, J., Villermaux, E., Davy, P., and Le Borgne, T.

Subjects
RANDOM numbers, FRACTALS, FLUID flow, POROUS materials, STOCHASTIC processes
Abstract

Mixing describes the process by which solutes evolve from an initial heterogeneous state to uniformity under the stirring action of a fluid flow. Fluid stretching forms thin scalar lamellae that coalesce due to molecular diffusion. Owing to the linearity of the advection–diffusion equation, coalescence can be envisioned as an aggregation process. Here, we demonstrate that in smooth two-dimensional chaotic flows, mixing obeys a correlated aggregation process, where the spatial distribution of the number of lamellae in aggregates is highly correlated with their elongation, and is set by the fractal properties of the advected material lines. We show that the presence of correlations makes mixing less efficient than a completely random aggregation process because lamellae with similar elongations and scalar levels tend to remain isolated from each other. We show that correlated aggregation is uniquely determined by a single exponent that quantifies the effective number of random aggregation events. These findings expand aggregation theories to a larger class of systems, which have relevance to various fundamental and applied mixing problems. [ABSTRACT FROM AUTHOR]

Published
2024
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11. Carrier Heating and Negative Photoconductivity in Graphene

Author

Heyman, J. N., Stein, J. D., Kaminski, Z. S., Banman, A. R., Massari, A. M., and Robinson, J. T.

Subjects
Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

We investigated negative photoconductivity in graphene using ultrafast terahertz techniques. Infrared transmission was used to determine the Fermi energy, carrier density and mobility of p-type CVD graphene samples. Time-resolved terahertz photoconductivity measurements using a tunable mid-infrared pump probed these samples at photon energies between 0.35eV to 1.55eV, approximately one half to three times the Fermi energy of the samples. Although interband optical transitions in graphene are blocked for pump photon energies less than twice the Fermi energy, we observe negative photoconductivity at all pump photon energies investigated, indicating that interband excitation is not required to observe this effect. Our results are consistent with a thermalized free carrier population that cools by electron-phonon scattering, but inconsistent with models of negative photoconductivity based on population inversion., Comment: 15 pages, 4 figures

Published
2014
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12. Ultrafast THz Faraday Rotation in Graphene

Author

Heyman, J. N., Kune, R. F. Foo, Alebachew, B. A., Nguyen, M. D., and Robinson, J. T.

Subjects
Condensed Matter - Materials Science, Condensed Matter - Mesoscale and Nanoscale Physics
Abstract

Terahertz (THz) Faraday rotation measurements were performed to investigate carrier dynamics in p-type CVD graphene. We used static and time-resolved polarization-sensitive THz transmission measurements in a magnetic field to probe free carriers in GaAs, InP and Graphene. Static measurements probe the equilibrium carrier density and momentum scattering rate. Time-resolved (optical pump/THz probe) measurements probe the change in these quantities following photoexcitation. In a typical CVD graphene sample we found that 0.5ps following photoexcitation with 1*10^13 photons/cm2 pulses at 800nm the effective hole scattering time decreased from 37fs to 34.5fs, while the carrier concentration increased from 2.0*10^12/cm2 to 2.04*10^12/cm2, leading to a transient decrease in the conductivity of the film., Comment: 18 pages, 7 figures

Published
2014
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15. Spatiotemporal Variability of Hyporheic Flow in a Losing River Section.

Author

Simon, N., Bour, O., Heyman, J., Lavenant, N., Petton, C., and Crave, A.

Subjects
FIBER optic cables, WATER quality management, MEANDERING rivers, GROUNDWATER flow, THERMAL conductivity, HYDRAULIC conductivity, RIVER channels, RIVER sediments
Abstract

Characterizing the spatiotemporal variability of water fluxes at the stream‐groundwater interface is extremely challenging due to the lack of methods for estimating hyporheic flows at different scales. To address this, we demonstrate the potential of Active‐Distributed Temperature Sensing (DTS) methods for measuring and mapping hyporheic flow in a lowland stream. Experiments were conducted by burying a few hundred meters of heatable Fiber‐Optic cables within streambed sediments in a large meander, where permanent stream‐losing conditions are observed along the stream reach. We propose a new methodology to filter ambient temperature variations along the heated section of the DTS cable and to extend the application of Active‐DTS to losing streams. After data processing, the results show that, along lateral and longitudinal stream profiles, both thermal conductivity and water flux values follow normal distributions with relatively small standard deviations. Hyporheic fluxes vary by one order of magnitude. The absence of correlation between water fluxes within the hyporheic zone and streambed topography variations suggests that the variability is mainly controlled by local streambed heterogeneities. This means that the spatiotemporal variability of fluxes may be used as a marker of the variability of streambed hydraulic conductivities. The relatively low spatial variability (one order of magnitude) in hyporheic flow suggests a small variability of streambed properties. This is an important result for calibrating models assessing hyporheic processes, in which the hydraulic conductivity distribution is generally assumed. Additionally, measurements made over three years yield similar estimates showing the remarkable stability of hyporheic flows through time. Plain Language Summary: Characterizing the interactions between groundwater and surface water is extremely challenging although such interactions control water quality and ecosystems resilience to climate changes. Here, we used an innovative approach based on heated fiber optic cables, called Active‐Distributed Temperature Sensing, to image the spatial variability of hyporheic fluxes in a lowland stream. Our results show that the instrumental developments as well as the data processing methodology are very robust to accurately measure in‐situ the thermal conductivity of stream sediments and hyporheic fluxes within the streambed. Interestingly, groundwater flux variability was found relatively limited and not correlated to the morphology of the riverbed. In addition, measurements made over three years yield similar estimates showing the excellent reproducibility of the measurements and the remarkable stability of hyporheic flows through time. These results shed new light about the spatial and temporal variability of hyporheic fluxes in a lowland river. Key Points: Active‐Distributed Temperature Sensing was used in a lowland stream to assess and map the spatiotemporal variability of stream infiltrationAn innovative field setup and a new methodology was developed to remove ambient temperature variations from the raw temperature signalResults suggest relatively homogeneous streambed properties and show remarkable stability of hyporheic flow during few years [ABSTRACT FROM AUTHOR]

Published
2024
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17. Influence of non-stoichiometry and local atomic environments on carrier transport in GaAs1−x−yNxBiy alloys.

Author

Mitchell, J. W., Greenhill, C. M., Huang, T.-Y., Jen, T., Yang, Y.-C., Hammond, K., Heyman, J. N., and Goldman, R. S.

Subjects
ATOM-probe tomography, ALLOYS, CHARGE carrier mobility, PHOTOCONDUCTIVITY, TERAHERTZ materials
Abstract

We have investigated the influence of non-stoichiometry and local atomic environments on carrier transport in GaAs(N)Bi alloy films using local-electrode atom probe tomography (LEAP) in conjunction with time-resolved terahertz photoconductivity measurements. The local concentrations of N, Bi, and excess As, as well as Bi pair correlations, are quantified using LEAP. Using time-resolved THz photoconductivity measurements, we show that carrier transport is primarily limited by excess As, with the highest carrier mobilities for layers with yBi > 0.035. [ABSTRACT FROM AUTHOR]

Published
2024
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19. Évaluation de l’impact d’un ultra trail de 156km sur l’équilibre glycémique de coureurs non diabétiques:résultats préliminaires

Author

Parent, C. (Cassandra), Lespagnol, E. (Elodie), Mauvieux, B. (Benoit), Hingrand, C. (Corentin), Rabasa Lhoret, R. (Remi), Hurdiel, R. (Rémy), Dalaunay, P-L. (P-L), Gabel, V. (V), Baron, P. (Pauline), Heyman, J. (Joris), Noirez, P. (Philippe), Vauthier, J-C. (Jean-Christophe), Jouffroy, R. (R), Heyman, E. (Elsa), Université de Lille, Univ. Artois, Univ. Littoral Côte d’Opale, Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369, Mobilités : Attention, Orientation et Chronobiologie [COMETE], Mobilités : Vieillissement, Pathologie, Santé [COMETE], 444281|||Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369 - ULR 4488 [URePSSS], Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369 - ULR 4488 [URePSSS], Université de Rennes [UR], Université du Québec à Montréal = University of Québec in Montréal [UQAM], and CHU Necker - Enfants Malades [AP-HP]

Abstract

Contexte - Plusieurs équipes ont exploré la glycémie lors d’épreuves d’ultra-endurance, mais, seulement avec des mesures ponctuelles conduisant à des résultats divergents (baisse[1], hausse[2], ou stabilité de la glycémie[3]). La mesure des variations glycémiques en continu permettrait d’apprécier les variations réelles de glycémies pendant les différentes phases de l’épreuve et à la récupération. La mise en évidence d’éventuels épisodes hypo ou hyperglycémiques pourrait expliquer certaines variations de performances. Méthodes - Cinquante-cinq coureurs (43 hommes, 12 femmes) ont participé à un ultra-trail de 6 boucles de 26km et 1000m D+ à Clécy (France)[4]. La veille de la course, un capteur de glucose interstitiel en continu, en mode masqué, a été placé à l'arrière du bras des participants et porté pendant 14 jours afin d’obtenir les données de repos (de la pose du capteur jusqu’à 06h00 le jour de la course), de course mais aussi de récupération. Des modèles mixtes linéaires ou des régressions logistiques binaires ont permis d’identifier les excursions glycémiques et leurs liens avec les caractéristiques de course. Résultats - Au repos avant la course, le temps passé 140mg.dL-1 est moins élevé que pendant la course (e -5,86; P=0,004). Plus la vitesse de course est élevée lors d’une boucle, plus les coureurs passent de temps >140mg.dL-1 (e -0,1; P=0,003). La variabilité glycémique (coefficient de variation) augmente au fur et à mesure des boucles de course (e +2,55; P140mg.dL-1 a tendance à diminuer le temps de réaction des coureurs lors des tests de vigilance (e -0,01; P=0,071). Conclusion - L’ultra trail s’est accompagné d’un risque hyperglycémique, et non hypoglycémique, accru, d’autant plus lors les boucles où la vitesse était plus élevée, suggérant l’implication des hormones hyperglycémiantes. La suite des analyses explorera les données de récupération.

Published
2023

21. Fullmer, Elliott. Everyone's democracy: confronting political inequality in America

Author

Heyman, J.

Subjects
Everyone's Democracy: Confronting Political Inequality in America (Nonfiction work) -- Fullmer, Elliott, Books -- Book reviews, Library and information science, Literature/writing
Abstract

Fullmer, Elliott. Everyone's democracy: confronting political inequality in America. McFarland, 2022. 257p bibl index ISBN 9781476688572 pbk, $39.95; ISBN 9781476647043 ebook, contact publisher for price (cc) 60-2147 Orig Fullmer's book [...]

Published
2023

24. Improving Patient Safety Through Clinical Alarms Management

Author

David, Yadin, Clark, J. Tobey, Ott, J., Bauld, T., Patail, B., Gieras, I., Shepherd, M., Miodownik, S., Heyman, J., Keil, O., Lipschultz, A., Hyndman, B., Hyman, W., Keller, J., Baretich, M., Morse, W., Dickey, D., Jarm, Tomaz, editor, Kramar, Peter, editor, and Zupanic, Anze, editor

Published
2007
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26. Brennan, Jason. Debating democracy: do we need more or less?

Author

Heyman, J.

Subjects
Debating Democracy: Do We Need More or Less? (Nonfiction work) -- Brennan, Jason -- Landemore, Hélène, Books -- Book reviews, Library and information science, Literature/writing
Abstract

Brennan, Jason. Debating democracy: do we need more or less?, by Jason Brennan and Helene Landemore. Oxford, 2021. 296p bibl index ISBN 9780197540817 cloth, $99.00; ISBN 9780197540824 pbk, $24.95; ISBN [...]

Published
2022

27. Pyruvate Kinase M1 Suppresses Development and Progression of Prostate Adenocarcinoma

Author

Davidson, S. M., Schmidt, D. R., Heyman, J. E., O'Brien, J.P., Liu, A.C., Israelsen, W. J., Dayton, T. L., Sehgal, R., Bronson, R.T., Freinkman, E., Mak, H. H., Fanelli, G. N., Malstrom, S., Bellinger, G., Carracedo, A., Pandolfi, P. P., Courtney, K. D., Jha, A., DePinho, R. A., Horner, J. W., Thomas, C. J., Cantley, L.C., Loda, M., and Vander Heiden, M. G.

Subjects
Male, Cancer Research, Oncology, Carcinogenesis, Pyruvate Kinase, Prostate, Humans, Prostatic Neoplasms, Adenocarcinoma
Abstract

Altered metabolism helps sustain cancer cell proliferation and survival. Most cancers, including prostate cancers, express the M2 splice isoform of pyruvate kinase (PKM2), which can support anabolic metabolism to support cell proliferation. However, Pkm2 expression is dispensable for the formation and growth of many cancers in vivo. Expression of pyruvate kinase isoform M1 (Pkm1) is restricted to relatively few tissues and has been reported to promote growth of select tumors, but the role of PKM1 in cancer has been less studied than PKM2. To test how differential expression of pyruvate kinase isoforms affects cancer initiation and progression, we generated mice harboring a conditional allele of Pkm1 and crossed these mice, or those with a Pkm2 conditional allele, with a Pten loss-driven prostate cancer model. Pkm1 loss led to increased PKM2 expression and accelerated prostate cancer development, whereas Pkm2 deletion led to increased PKM1 expression and suppressed tumor progression. Metabolic profiling revealed altered nucleotide levels in tumors with high PKM1 expression, and failure of these tumors to progress was associated with DNA replication stress and senescence. Consistent with these data, a small molecule pyruvate kinase activator that mimics a high activity PKM1-like state suppressed progression of established prostate tumors. Analysis of human specimens showed PKM2 expression is retained in most human prostate cancers. Overall, this study uncovers a role for pyruvate kinase isoforms in prostate cancer initiation and progression, and argues that pharmacologic pyruvate kinase activation may be beneficial for treating prostate cancer. Significance: Differential expression of PKM1 and PKM2 impacts prostate tumorigenesis and suggests a potential therapeutic vulnerability in prostate cancer.

Published
2022

28. The extreme yet transient nature of glacial erosion

Author

Patton, H. (H.), Hubbard, A. (A.), Heyman, J. (J.), Alexandropoulou, N. (N.), Lasabuda, A. P. (A. P. E.), Stroeven, A. P. (A. P.), Hall, A. M. (A. M.), Winsborrow, M. (M.), Sugden, D. E. (D. E.), Kleman, J. (J.), Andreassen, K. (K.), Patton, H. (H.), Hubbard, A. (A.), Heyman, J. (J.), Alexandropoulou, N. (N.), Lasabuda, A. P. (A. P. E.), Stroeven, A. P. (A. P.), Hall, A. M. (A. M.), Winsborrow, M. (M.), Sugden, D. E. (D. E.), Kleman, J. (J.), and Andreassen, K. (K.)

Abstract

Ice can sculpt extraordinary landscapes, yet the efficacy of, and controls governing, glacial erosion on geological timescales remain poorly understood and contended, particularly across Polar continental shields. Here, we assimilate geophysical data with modelling of the Eurasian Ice Sheet — the third largest Quaternary ice mass that spanned 49°N to 82°N — to decipher its erosional footprint during the entire last ~100 ka glacial cycle. Our results demonstrate extreme spatial and temporal heterogeneity in subglacial erosion, with rates ranging from 0 to 5 mm a−1 and a net volume equating to ~130,000 km3 of bedrock excavated to depths of ~190 m. A hierarchy of environmental controls ostensibly underpins this complex signature: lithology, topography and climate, though it is basal thermodynamics that ultimately regulates erosion, which can be variously protective, pervasive, or, highly selective. Our analysis highlights the remarkable yet fickle nature of glacial erosion — critically modulated by transient ice-sheet dynamics — with its capacity to impart a profound but piecemeal geological legacy across mid- and high latitudes.

Published
2022

36. L’exercice aérobie continu apparaît protecteur contre les hyperglycémies de récupération précoce, en période post-absorptive, en comparaison de l’exercice intermittent intense, chez des enfants et adolescents atteints d’un diabète de type 1

Author

Heyman, E. (Elsa), Lespagnol, E. (Elodie), Heyman, J. (Joris), Tagougui, S. (Sémah), Stuckens, C. (Chantal), Dupire, M. (Marion), Dewaele, A. (Aline), Weill, J. (Jacques), Gueorgieva, I. (Iva), Berthoin, S. (Serge), Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369 - ULR 4488 (URePSSS), Université d'Artois (UA)-Université du Littoral Côte d'Opale (ULCO)-Université de Lille, Université de Rennes (UR), Hôpital Jeanne de Flandres, Université de Lille, Droit et Santé-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Lille University Management Lab - ULR 4999 (LUMEN), Université de Lille, Environnement périnatal et croissance - EA 4489 (EPS), Université de Lille-Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Centre Hospitalier Régional Universitaire [Lille] (CHRU Lille), Univ. Artois, Univ. Littoral Côte d’Opale, Unité de Recherche Pluridisciplinaire Sport, Santé, Société (URePSSS) - ULR 7369, Université de Rennes [UR], Lille University Management Lab (LUMEN) - ULR 4999, Environnement Périnatal et Santé - EA 4489, and Centre Hospitalier Régional Universitaire [Lille] [CHRU Lille]

Subjects
[SDV]Life Sciences [q-bio]
Abstract

International audience; INTRODUCTION-QUESTIONDès le plus jeune âge, l’exercice est une clé de la prise en charge du diabète de type 1 (DT1). Néanmoins, la peur de l’hypoglycémie est un frein majeur à l’activité physique (Livny et coll. 2019). Chez l’adulte atteint de DT1, l’ajout de répétitions de séquences intenses lors d’un exercice continu modéré semble limiter la baisse de glycémie (Guelfi et coll. 2005). L’objectif est d’évaluer l’impact de l’intensité et de la modalité d’exercice sur les excursions glycémiques au décours de l’exercice chez l’enfant/adolescent atteint de DT1.MATERIELS ET METHODESCinq garçons et 7 filles atteints de DT1 (9,8±1,4ans; HbA1c 7 ,5±0,7%) réalisent en période post-absorptive, sur ergocycle, en ordre randomisé (visites espacées de >48h), un exercice continu modéré (CONT) et un exercice intermittent intense (INT) de durée et charge mécanique totale identiques [20min; 50%PWC170 vs. 15sec(150%PWC170)/30sec récupération passive). Lesvariations glycémiques (glycémie capillaire pendant l’exercice et glucose interstitiel à la récupération) sont comparées entre les types d’exercice et une condition sédentaire (SED), en prenant en compte la glycémie initiale, les glucides et l’insuline (covariables dans les modèles mixtes linéaires).RESULTATSAucune hypoglycémie symptomatique n’est survenue. Alors que la glycémie capillaire diminuait à l’exercice pour CONT (−26,5mg/dL), elle restait stable pour INT (différence inter-condition, P

Published
2020

48. Acknowledgement to reviewers of social sciences in 2019

Author

Abbas, A., Abel, G., Abreu, A., Adam, A., Adamek, M., Adiletta, G., Adusei-asante, K.A., Romeo, M.D.M., Alderson, A., Alfaro, E., Aliverti, A., Almeida, Fernando, Álvarez-gonzález, L.I., Amelina, A., Anand, C., Anderson, G., Andreasson, J., Ang, I., Aragon, J., Arcidiacono, C., Arcuri, S., Assante, D., Atukeren, E., Avery, H., Ayeb-karlsson, S., Azadi, H., Bachman, R., Bader, M., Badulescu, A., Bahmanteymouri, E., Baines, S., Baker, T., Baker‐beall, C., Bañón, L., Bar‐am, N., Barbier‐greenland, K., Barnett, R., Barragán‐escandón, A., Barreto, A.M., Barrett, E., Bartkowski, J., Bartram, R., Bartzas, G., Bates, D., Baviera‐puig, A., Bayley, A., Beazley, H., Beer, C., Behr, H., Beier, G., Belford, N., Bencivenga, R., Benli, A.E., Benton‐short, L., Berei, J.M., Berbel‐pineda, E., Bernstein, Berntzen, E.R., Bertella, L., Birney, G., Bittle, M., Black, S., Rivero, L.B., Blattner, J.J., Blok, C., Blount, A., Boas, Y., Bockarie, I., Bockerman, A., Bodén, P., Bönisch‐brednich, L., Bontje, B., Bontje, M., Borsellino, V., Bostan, I., Bowl, M., Bowman, B., Bracci, E., Bracken, C.M., Bradley, H., Brereton, P., Brewer, J., Bridge, D., Brooks, S., Brown, Andrijana, Brzoska, M., Brzozowski, W., Buckley, G., Buente, W., Bullaro, G.R., Burke, M.D., Burlacu, S., Busu, M., Butler, S., Byrne, J., Cabral, L., Cai, Y., Cajias, M., Calin, A.C., Callegari, C., Camarero, M., Campbell-figuerola, H., Campbell, J.R., Cannito, M., Canonico, E., Canosa, A., Carabelli, G., Carlbom, A., Carlone, T., Caron, R., Carpenter, A., Caruso, G., Casais, B., Castro, M.P., Cava, M.-J., Čeněk, J., Cerchione, R., Certomà, C., Chan, E., Charles, D., Charlwood, A., Chatzifotiou, S., Chell, K., Chen, L., Chen, Q., Chen, W.-J., Ching, L., Christensen, J., Ciasullo, M.V., Cimermanová, I., Činčera, J., Cipollina, M., Clutterbuck, R., Cochrane, B., Collin, K., Conley, R., Connell, H., Connelly, J., Connelly, L., Connelly, R., Conti, D., Conversi, D., Conway, G., Cooper, S., Cope, M., Corsini, F., Cristian, P., Crohn, H.M., Croog, R.C., Salazar, T., Csiszár, C., D’auria, I., D’souza, A., D’souza, N., Dabija, D.-C., Dagg, J., Dalby, S., DaleDalsgård, B., Dʹamato, A.L., Daniel, D., Dant, L., Dantas, C., Darwin, H., Dashper, K., David, M.E., De Flippo, D., De, A., Edi, M., Velázquez, E.D.C., Velázquez, F., Del Vecchio, P., Delatolla, A., Delgado, P., Delgado‐romero, E., Delrosso, J., Desimone, J., Detlefsen, L., Devaney, C., Díaz, L.M., Didham, R., Diogo, E., Dirakis, A., Doberneck, D., Doidge, M.D., Molero, G., Dombrowski, P.J., Doñate, C., Đorđević, Martín, Reis, P.G.R., Doucek, P., Dundes, L., Dvouletý, O., Dybo, T., Eastman, J., Eckhardt, J., Economou, A., Edler, D., Edu, U., Ekblom, P.E., Khaled, D., Ellis, C., Elsabry, E., Erceg, A., Erokhin, V., Ertz, M., Everitt, J., Evers, A., Falcone, P.M.F., Cabana, P., Fawcett, B., Fearnley, B., Featherstone, M., Ferreira, M., Ferreira, P., Fetner, T., Fisher, J., Fisher, R., Fitzpatrick, T., Flanagan, C., Fogarty, E.A., Fonchingong, C.C., Fontana, M., Fook, J., Foreman, A.M., Foster‐mcgregor, N., Fox, S., Franco, J.A., Franklin, A.L., Friedrich, T., Fromm, I., Fu, N., Fucà, R., Fukuda, Y., Fusco, G., Gabriela, D., Galan, D., Gamo, A., Galiano, J., Garcia, A., García, M.E.A., García‐germán, S., García‐machado, J.J., García‐ruiz, C.R., Gavini, M., Gazzano, A., Gebhardt, M., Gerson, S., Gherghina, Ş.C., Gibbs, P., Gilhooly, D., Gill, F., Gill, N., Gil‐lopez, A.J., Ginès Fabrellas, A., Giuffrida, N., Giuliani, G., Goddard, J., Godderis, R., Goh, C.S., Gomes, O., Goncharuk, A.G., Canche, M.G., Pérez, I.G., Valero, G., González, R.C.L., Gonzalez‐benson, O., Gonzalez‐feliu, J., González‐lópez, M., Gozdziak, E., Granx, B., Gran, R., Gray, S.L., Grbes, A., Grondys, K., Grugan, S., Guenther, J., Guijarro, F., Gurko, T., Haas, L.L., Hagellx, A., Hagell, H., Hallgrímsdóttir, H., Hamada, T., Hanf, J., Hannouf, M., Hao, F., Harman, G., Harris, K.L., Harris, R., Harrison, N.H., Healy, G., Healy, K., Heikkilä, E., Hellmich, C., Henig, J., Henninger, C.E., Heo, W., Herman, C., Herrero‐diz, P., Heyman, J., Hibbert, N., Hillman, A.L., Hillman, B., Hine, B., Hino, K., Hinten, M., Hipp, L., Hoang, D., Holleran, D., Hollin, I., Holm, M., Holmes, C., Hook, G., Hoornweg, D., Hopper, L., Hossain, M., Hoxhaj, R., Hu, B., Huang, Y., Huarita, E., Hudec, O., Humbert, A.L., Hung, M.-C., Hunt, A., Husu, L., IanoleIbáñez‐gonzález, R., Ibáñez‐gonzález, M.J., Ide, T., Ijaz, Muhammad Fazal, Impicciatore, R., Ingwersen, M., Ioannides, D., Iseppi, L., Islam, M.M., Jaakkola, M., Jagger, S., Jagosh, J., Jenkin, G., Joelsson, T., Johansen, R.E.B., Johnsen, H.C., Garmann Jona, G., Jones, T., Judit, O., Kalalahti, M., Kang, M., Kantamaneni, K., Kaplan, L., Kapsalis, V., Karbowski, A., Katsoni, V., Kavish, D.R., Kawamura, H., Keilman, N.W., Kelly, J., Kenneth, H., Kepaptsoglou, K., Kevin, D., Kewley, S., Kim, J.-C., Kim, K.-Y., Kim, S., Kimengsi, J.N., Klein, J., Kleine, M., Klemes, J.I.R.I., Klepp, S., Klinkenberg, L.E.F., Knight, L., Knowles, J., Koerner, S., Konsolakis, K., Konstantinov, V., Kopkin, N.K., Kordova, S., Kosinski, E., Kostelka, F., Kot, S., Kotter, R., Kramers, A., Krienert, J.L., Kubon, M., Kuffer, M., Kungolos, A., Kuttner, P., Kużelewska, E., Ladd, A.E., Lammi, M., Landrum, J., Lange, B., Languilaire, T.D., Lantz, J.-C., Laudal, B., Laurentsyeva, T., Lavizzari, N., Lavoie, A., Feuvre, J.L., Leakey, N., Lee, R., Lee, A., Lee, E., Lee, J., Lentner, J.-H., Lenz‐taguchi, C., Leong, H., Levac, W.S., Lewin, L., Lewinson, E., Li, T., Li, F., Li, G., Li, M., Liczmańska‐kopcewicz, Y., Lillard, K., Linková, C., Links, M., Lipinski, P., Storto, J.L., Lochtman, C., Lockwood, K., Loh, A., Lomonaco‐benzing, V., Łopaciuk‐gonczaryk, R., López, B., lópez, D., Lorenzini, J., Löther, A., Loughnan, C., Love, T., Lucas, M.L., Ubago, J., Lukić, J., Lumley‐sapanski, A., Macedo, I., Macfarlane, S., Machimbarrena, J.M., Magda, R., Magrane, D., Maier, D., Majić, S., Majumdar, S., Makarovič, M., Malekigorji, M., Mallick, B., Malone, D., Mandić, D., Maniou, T., Mannell, J.M., Barbutiu, S., Marczak, M., Markvica, K.M., Aragón, M.D.M., Martín, J.S.M., Pereira, A., Marzal‐felici, J., Mason, F., Mather, J., Matijosaitiene, I., MatthewsMattisson, R., Mattisson, C., Matuszak, Ł., Matuzeviciute, K., Mauerer, G., Mayer, A., McCaig, C., McClearn, D., McKee, S.C., McKendry, S., McMahon, M., McReynolds, P., Medina‐vicent, M., Medyna, G., Mees, H., Meil, G., Meringolo, P., Miciuła, I., Milczarek‐andrzejewska, D., Miles, P., Milivojević, S., Miller, G., Minello, A., Miron, D., Mironeasa, S., Misra, J., Mitchell, T., Moldovan, O., Molero, P.P., Møllersen, S., Momsen, J.H., Moniz, A.B., Morea, D., Moreau, M.-P., Morgan, D.L., Morgan, H., Moscatelli, S., Mostowska, M., Mousavi, A., Mousavi, S., Mrugalska, B., Muinos, G., Mukungu, K., Mukuni, J., Murakami, D., Muresan, I.C., Murib, Z., Muro, A., Mustafa, G., Nackerud, L., Nalmpantis, D., Napal, M., Närvi, J., Naser, M., Nash, V., Navarre‐jackson, L., Navarro, R., Nazarczuk, D., Neale, J., Necula, J., Němec, S., Neven, D., Nevgi, A., Newbold, A., Newton, G., New, A., Niakšu, O., Niiniluoto, I., Nkogo, J.C., Nobre, S., Nunn, P., Oakes, R., Obrad, C., Oke, A., Okorie, O., Oncioiu, I., Ormsbee, F., Ortega‐sánchez, D., Osgood, J., Osorio, C., Oswald, J., Otis, M.D., Ouassini, A., Oxford, S., Page, T., Paixão, M.J., De Pajares, E.M., Palmesr, E., Palos‐sánchez, P., Pamučar, Dragan, Pan, H., Panek, J., Pankowska, M., Papadakis, S., Papafilippou, V.P., Medina, R., Park, C.S., Partalidou, M., Passantino, A., Passini, S., Paul, S., Pavliuk, R., Pearce, P., Pease, K., Pentaris, P., Perez, V.W., Pérez‐armendáriz, C., Perez‐vaisvidovsky, N., Perez‐y‐perez, M., Perry, N., Prtchu, D., Peterson, D.A.M., Alexandru‐ionut, Petrykowski, Petrykowski, P., Phillips, L., Pickard, S., Pickel, A., Pieke, F., Piekut, A., Pierce, S., Pierrakis, Y., Piguet, E., Pleace, N., Połom, M., Polsa, P., Ponticorvo, M., Pookulangara, S., Pope, J., Popoli, P., Postigo, J.C., Price‐Wolf, J., Prior, S., Privitera, D., Prud’homme, C., Prosser, J., Prus, P., Puiu, S., Purcell, R., Pyrialakou, D., Quam‐wickham, N., Quarmby, T., Quinlan, K.M., Quinn, A., Quinn, R., Raciti, M., Radicić, D., Rahimi, B., Ramlo, S., Randle, H., Ratajczak, M., Raymond, T., Recio‐menéndez, M., Reese, L.A., Regner, T., Reichman, J., WReim, iebke, R., Pastor, A.M., Rexhepi, G., Reyes‐menendez, A., Reynaud, C., Ribeiro‐soriano, D., Ricci, S., Ridaura, G., Rita, C., Roberts, M., Roberts, G., Roberts, K., Rockerbie, D., Rodger, J.A., Rodin, G., Rodrigues, D.R., Martín, J.A., Rodríguez, C.F., Rodriguez‐modroño, P., Romero‐rodríguez, L.M., Rončáková, T., Roper, I., Rorie, M.R., Marzán, C.F., Rose, G., Rose, M., Rosen, R., Roth, R., Roubík, H., Roumpos, C., Rowbottom, D., Roy, J., Ruban, D., Rubira‐garcía, R., Ruiperez‐valiente, J.A., Ruiz, R., Ruiz‐real, J.L., Russell, B., Russo, K., Sabol, W., Safonte, F., Salin, M., Salom‐carrasco, J.S., Sánchez, L.D., Sanghera, Santos, B.S., Silva, D., Sanz, F., Sanz‐altamira, B., Sarapura, S., Sari, D., Satybaldieva, E., Saura, J.R., Sayed, N., Scandurra, C., Schartner, A., Schellekens, J., Schenk‐hoppé, K.R., Scherer, L., Schewe, J.A., Schewe, R., Schiller, N.G., Schmidt, E.-M., Schneickert, C., Schneider, J., Scott, H., Scott, P., Seibel, K., Seidler, R., Seifert, S.S., Puyuelo, M.S., Azevedo, P.S., Lopez, A.E.S., Raamkumar, A.S., Blundo, D., Severo, M., Shakya, K.M., Shapiro, A., Shaw, I.F., Shaw, T.V., Shea, B., Shearer, H., Sheldon, S., Shell‐duncan, B., Shepherd, S., Sheridan, L., Siemienska, R., Sillup, G.P., Simeon, J.C., Simonelli, A., Skilodimou, H.D., Škrinjarić, T., Slater, G., Smardon, R., Smith, J., Smoląg, K., Snauwaert, D.T., Soanes‐white, T., Sobocińska, M., Sohaib, O., Soldatić, K., Sorainen, G.T., Soldatos, A., Sørensen, N.N., Spanu, S., Stadlober, E., Stafford, F., Ștefănescu‐mihăilă, R.O., Stefanini, A., Štefko, R., Steglich, E., Steirer, G., Stephenson, M.O., Stoecker, R., Stoffelen, A., Strang, A., Suppa, D., Sutton, J., Svobodová, L., Swigon, M., Synnott, J., Sytsma, V., Tabe, T., Tajeddini, K., Tang, S., Taylor, B., Taylor, C., Teignier, M., Teixeira, C., Tempelaar, D., Ter Avest, K.H., Ter Horst, E., Testa, M.R., Thakur, N., Thiamwong, L., Thijsen, A., Thomas, B.A., Thompson, C., Thompson, D., Tisdall, K., Toft, Mancini, Torell, A., Toscano‐hernández, G., Tregua, A.E., Triandafyllidou, M., Tseloni, A., Seloni, A., Tsikouras, P., Tsogas, G., Twamley, K., Tyler, D.U., Haque, A., Underwood, M., Urbański, M., Uribe‐toril, J., Vaezipour, A., Van Hove, L.V., Huylenbroeck, G., Van Nuland, S., Vanner, C., Vázquez‐cano, E., Veen, E., Veintimilla, S.G.-A., Veković, M., Velija, P., Venco, E.M., Verticelli, A., Vicente, P.V., Estiarte, C., Višnjić, A., Visvizi, A., Vlasblom, J.D., Volsche, S.V., Fintel, D., Von Keyserlingk, L., Vranješević, J., Walter, K.V., Wandosell, G., Wang, Y., Wasileski, G., Wastl‐walter, D., Weaving, C., Weenik, D., Wehr, K., Wei, X., Wharton, A., White, G., Whitehouse, H., Whitley, C.T., Whitman, L., Wiersma‐mosley, J.D., Wilcke, H., Wilkes, R., Williams, L., Williamson, R.D., Wimalasena, L., Wiseman, A., Wołek, M., Wright, E.Q., Wroblewski, A., Wyile, A.S., Wynn, C., Xu, X., Xue, B., Yang, J., Yoe, T.M., Young, M., Younus, M., Yu, T.-F., Yuan, Q., Zadra, C., Zaharijević, A., Zajda, J., Zander, K., Zbuchea, A., Zelin, A., Zhang, C., Zippel, K., Zitricky, V., Živanović, P., Zou, L., Zufferey, C., Zuhdi, M., Zumeta, W.M., Abbas, A., Abel, G., Abreu, A., Adam, A., Adamek, M., Adiletta, G., Adusei-asante, K.A., Romeo, M.D.M., Alderson, A., Alfaro, E., Aliverti, A., Almeida, Fernando, Álvarez-gonzález, L.I., Amelina, A., Anand, C., Anderson, G., Andreasson, J., Ang, I., Aragon, J., Arcidiacono, C., Arcuri, S., Assante, D., Atukeren, E., Avery, H., Ayeb-karlsson, S., Azadi, H., Bachman, R., Bader, M., Badulescu, A., Bahmanteymouri, E., Baines, S., Baker, T., Baker‐beall, C., Bañón, L., Bar‐am, N., Barbier‐greenland, K., Barnett, R., Barragán‐escandón, A., Barreto, A.M., Barrett, E., Bartkowski, J., Bartram, R., Bartzas, G., Bates, D., Baviera‐puig, A., Bayley, A., Beazley, H., Beer, C., Behr, H., Beier, G., Belford, N., Bencivenga, R., Benli, A.E., Benton‐short, L., Berei, J.M., Berbel‐pineda, E., Bernstein, Berntzen, E.R., Bertella, L., Birney, G., Bittle, M., Black, S., Rivero, L.B., Blattner, J.J., Blok, C., Blount, A., Boas, Y., Bockarie, I., Bockerman, A., Bodén, P., Bönisch‐brednich, L., Bontje, B., Bontje, M., Borsellino, V., Bostan, I., Bowl, M., Bowman, B., Bracci, E., Bracken, C.M., Bradley, H., Brereton, P., Brewer, J., Bridge, D., Brooks, S., Brown, Andrijana, Brzoska, M., Brzozowski, W., Buckley, G., Buente, W., Bullaro, G.R., Burke, M.D., Burlacu, S., Busu, M., Butler, S., Byrne, J., Cabral, L., Cai, Y., Cajias, M., Calin, A.C., Callegari, C., Camarero, M., Campbell-figuerola, H., Campbell, J.R., Cannito, M., Canonico, E., Canosa, A., Carabelli, G., Carlbom, A., Carlone, T., Caron, R., Carpenter, A., Caruso, G., Casais, B., Castro, M.P., Cava, M.-J., Čeněk, J., Cerchione, R., Certomà, C., Chan, E., Charles, D., Charlwood, A., Chatzifotiou, S., Chell, K., Chen, L., Chen, Q., Chen, W.-J., Ching, L., Christensen, J., Ciasullo, M.V., Cimermanová, I., Činčera, J., Cipollina, M., Clutterbuck, R., Cochrane, B., Collin, K., Conley, R., Connell, H., Connelly, J., Connelly, L., Connelly, R., Conti, D., Conversi, D., Conway, G., Cooper, S., Cope, M., Corsini, F., Cristian, P., Crohn, H.M., Croog, R.C., Salazar, T., Csiszár, C., D’auria, I., D’souza, A., D’souza, N., Dabija, D.-C., Dagg, J., Dalby, S., DaleDalsgård, B., Dʹamato, A.L., Daniel, D., Dant, L., Dantas, C., Darwin, H., Dashper, K., David, M.E., De Flippo, D., De, A., Edi, M., Velázquez, E.D.C., Velázquez, F., Del Vecchio, P., Delatolla, A., Delgado, P., Delgado‐romero, E., Delrosso, J., Desimone, J., Detlefsen, L., Devaney, C., Díaz, L.M., Didham, R., Diogo, E., Dirakis, A., Doberneck, D., Doidge, M.D., Molero, G., Dombrowski, P.J., Doñate, C., Đorđević, Martín, Reis, P.G.R., Doucek, P., Dundes, L., Dvouletý, O., Dybo, T., Eastman, J., Eckhardt, J., Economou, A., Edler, D., Edu, U., Ekblom, P.E., Khaled, D., Ellis, C., Elsabry, E., Erceg, A., Erokhin, V., Ertz, M., Everitt, J., Evers, A., Falcone, P.M.F., Cabana, P., Fawcett, B., Fearnley, B., Featherstone, M., Ferreira, M., Ferreira, P., Fetner, T., Fisher, J., Fisher, R., Fitzpatrick, T., Flanagan, C., Fogarty, E.A., Fonchingong, C.C., Fontana, M., Fook, J., Foreman, A.M., Foster‐mcgregor, N., Fox, S., Franco, J.A., Franklin, A.L., Friedrich, T., Fromm, I., Fu, N., Fucà, R., Fukuda, Y., Fusco, G., Gabriela, D., Galan, D., Gamo, A., Galiano, J., Garcia, A., García, M.E.A., García‐germán, S., García‐machado, J.J., García‐ruiz, C.R., Gavini, M., Gazzano, A., Gebhardt, M., Gerson, S., Gherghina, Ş.C., Gibbs, P., Gilhooly, D., Gill, F., Gill, N., Gil‐lopez, A.J., Ginès Fabrellas, A., Giuffrida, N., Giuliani, G., Goddard, J., Godderis, R., Goh, C.S., Gomes, O., Goncharuk, A.G., Canche, M.G., Pérez, I.G., Valero, G., González, R.C.L., Gonzalez‐benson, O., Gonzalez‐feliu, J., González‐lópez, M., Gozdziak, E., Granx, B., Gran, R., Gray, S.L., Grbes, A., Grondys, K., Grugan, S., Guenther, J., Guijarro, F., Gurko, T., Haas, L.L., Hagellx, A., Hagell, H., Hallgrímsdóttir, H., Hamada, T., Hanf, J., Hannouf, M., Hao, F., Harman, G., Harris, K.L., Harris, R., Harrison, N.H., Healy, G., Healy, K., Heikkilä, E., Hellmich, C., Henig, J., Henninger, C.E., Heo, W., Herman, C., Herrero‐diz, P., Heyman, J., Hibbert, N., Hillman, A.L., Hillman, B., Hine, B., Hino, K., Hinten, M., Hipp, L., Hoang, D., Holleran, D., Hollin, I., Holm, M., Holmes, C., Hook, G., Hoornweg, D., Hopper, L., Hossain, M., Hoxhaj, R., Hu, B., Huang, Y., Huarita, E., Hudec, O., Humbert, A.L., Hung, M.-C., Hunt, A., Husu, L., IanoleIbáñez‐gonzález, R., Ibáñez‐gonzález, M.J., Ide, T., Ijaz, Muhammad Fazal, Impicciatore, R., Ingwersen, M., Ioannides, D., Iseppi, L., Islam, M.M., Jaakkola, M., Jagger, S., Jagosh, J., Jenkin, G., Joelsson, T., Johansen, R.E.B., Johnsen, H.C., Garmann Jona, G., Jones, T., Judit, O., Kalalahti, M., Kang, M., Kantamaneni, K., Kaplan, L., Kapsalis, V., Karbowski, A., Katsoni, V., Kavish, D.R., Kawamura, H., Keilman, N.W., Kelly, J., Kenneth, H., Kepaptsoglou, K., Kevin, D., Kewley, S., Kim, J.-C., Kim, K.-Y., Kim, S., Kimengsi, J.N., Klein, J., Kleine, M., Klemes, J.I.R.I., Klepp, S., Klinkenberg, L.E.F., Knight, L., Knowles, J., Koerner, S., Konsolakis, K., Konstantinov, V., Kopkin, N.K., Kordova, S., Kosinski, E., Kostelka, F., Kot, S., Kotter, R., Kramers, A., Krienert, J.L., Kubon, M., Kuffer, M., Kungolos, A., Kuttner, P., Kużelewska, E., Ladd, A.E., Lammi, M., Landrum, J., Lange, B., Languilaire, T.D., Lantz, J.-C., Laudal, B., Laurentsyeva, T., Lavizzari, N., Lavoie, A., Feuvre, J.L., Leakey, N., Lee, R., Lee, A., Lee, E., Lee, J., Lentner, J.-H., Lenz‐taguchi, C., Leong, H., Levac, W.S., Lewin, L., Lewinson, E., Li, T., Li, F., Li, G., Li, M., Liczmańska‐kopcewicz, Y., Lillard, K., Linková, C., Links, M., Lipinski, P., Storto, J.L., Lochtman, C., Lockwood, K., Loh, A., Lomonaco‐benzing, V., Łopaciuk‐gonczaryk, R., López, B., lópez, D., Lorenzini, J., Löther, A., Loughnan, C., Love, T., Lucas, M.L., Ubago, J., Lukić, J., Lumley‐sapanski, A., Macedo, I., Macfarlane, S., Machimbarrena, J.M., Magda, R., Magrane, D., Maier, D., Majić, S., Majumdar, S., Makarovič, M., Malekigorji, M., Mallick, B., Malone, D., Mandić, D., Maniou, T., Mannell, J.M., Barbutiu, S., Marczak, M., Markvica, K.M., Aragón, M.D.M., Martín, J.S.M., Pereira, A., Marzal‐felici, J., Mason, F., Mather, J., Matijosaitiene, I., MatthewsMattisson, R., Mattisson, C., Matuszak, Ł., Matuzeviciute, K., Mauerer, G., Mayer, A., McCaig, C., McClearn, D., McKee, S.C., McKendry, S., McMahon, M., McReynolds, P., Medina‐vicent, M., Medyna, G., Mees, H., Meil, G., Meringolo, P., Miciuła, I., Milczarek‐andrzejewska, D., Miles, P., Milivojević, S., Miller, G., Minello, A., Miron, D., Mironeasa, S., 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Published
2020

49. Language as raw material, scripts as tools and conversations as product: effects of linguistic production on job categories in outsourced call centres

Author

Gestió d'Empreses, Universitat Rovira i Virgili, Alarcón A; Ubalde J; Mc Heyman J, Gestió d'Empreses, Universitat Rovira i Virgili, and Alarcón A; Ubalde J; Mc Heyman J

Abstract

© 2020 Brian Towers (BRITOW) and John Wiley & Sons Ltd The article shows how linguistic criteria have become central when defining job categories in the outsourced call centre sector in Spain. Language occupies a central role in the production processes of informational capitalism: in call centres, language functions as the raw material, scripts as tools and conversations as a product. Yet the ways in which linguistic production affects key elements of job categories have received little attention. Drawing on in-depth interviews in the call centre sector, the analysis of scripts and collective agreements, this article shows how trade unions and workers are pushing to adapt Fordist arguments based on job autonomy to informational production, arguing that job categories may depend on linguistic autonomy from the scripts during the labour process.

Published
2020

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