bluuebunny/crossref_metadata_2025 huggingface dataset:
The cumulative effects of forest disturbance and climate variability on baseflow in a large watershed in British Columbia, Canada
Authors: Li Qiang , Wei Xiaohua , Zhang Mingfang , Liu Wenfei , Giles-Hansen Krysta , Wang Yi , Duan Liangliang
Published: June 2016

Abstract. Assessing how forest disturbance and climate change affect baseflow or groundwater discharge is critical for understanding water resource supply and protecting aquatic functions. Previous studies have mainly evaluated the effects of forest disturbance on streamflow, with rare attention on baseflow, particularly in large watersheds. However, studying this topic is challenging as it requires explicit inclusion of climate into assessment due to their interactions at any large watersheds. In this study, we used Upper Similkameen River watershed (USR) (1810 km2), located in the southern interior of British Columbia, Canada to examine how forest disturbance and climate variability affect baseflow. The conductivity mass balance method was first used for baseflow separation, and the modified double mass curves were then employed to quantitatively separate the relative contributions of forest disturbance and climate variability to annual baseflow. Our results showed that average annual baseflow and baseflow index (baseflow/streamflow) were about 85.2 ± 21.5 mm year-1 and 0.22 ± 0.05 for the study period of 1954–2013, respectively. The forest disturbance increased the annual baseflow of 18.4 mm, while climate variability decreased 19.4 mm. In addition, forest disturbance also shifted the baseflow regime with increasing of the spring baseflow and decreasing of the summer baseflow. We conclude that forest disturbance significantly altered the baseflow magnitudes and patterns, and its role in annual baseflow was equal to that caused by climate variability in the study watershed despite their opposite changing directions. The implications of our results are discussed in the context of future forest disturbance (or land cover changes) and climate changes.
EnKF with closed-eye period – towards a consistent aggregation of information in soil hydrology
Authors: Bauser Hannes H. , Jaumann Stefan , Berg Daniel , Roth Kurt
Published: June 2016

Abstract. The representation of soil water movement exposes uncertainties in all model components. We assess the key uncertainties for the speciﬁc hydraulic situation of a 1D soil proﬁle with TDR measured water contents. Addressed uncertainties are initial condition, soil hydraulic parameters, small scale heterogeneity, upper boundary condition, and the local equilibrium assumption by the Richards equation. We employ an ensemble Kalman ﬁlter (EnKF) with an augmented state to represent and estimate all key uncertainties, except for the intermittent violation of the local equilibrium assumption. For the latter, we introduce a Closed-Eye EnKF to bridge the gap. Due to an iterative approach, the EnKF was capable to estimate soil parameters, Miller scaling factors, and upper boundary condition based on TDR measurements during a single rain event. The introduced closed-eye period ensured constant parameters suggesting that they resemble the believed true material properties. This closed-eye period improves predictions during periods when the local equilibrium assumption is met, but requires a description of the dynamics during local non-equilibrium phases to be able to predict them. Such a description remains an open challenge. Finally, for the given representation our results show the necessity to include small scale heterogeneity. A simpliﬁed representation with Miller scaling already yielded a satisfactory description.
Estimation of leaf area index using an angular vegetation index based on in situ measurements and CHRIS/PROBA data
Authors: Wang Lijuan , Zhang Guimin , Lin Hui , Liang Liang , Niu Zheng
Published: June 2016

Abstract. The Normalized Difference Vegetation Index (NDVI) is widely used for Leaf Area Index (LAI) estimation. It is well documented that the NDVI is extremely subject to the saturation problem when LAI reaches a high value. A new multi-angular vegetation index, the Hotspot-darkspot Difference Vegetation Index (HDVI) is proposed to estimate the high density LAI. The HDVI, defined as the difference between the hot and dark spot NDVI, relative to the dark spot NDVI, was proposed based on the Analytical two-layer Canopy Reflectance Model (ACRM) model outputs. This index is validated using both in situ experimental data in wheat and data from the multi-angular optical Compact High-Resolution Imaging Spectrometer (CHRIS) satellite. Both indices, the Hotspot-Darkspot Index (HDS) and the NDVI were also selected to analyze the relationship with LAI, and were compared with new index HDVI. The results show that HDVI is an appropriate proxy of LAI with higher determination coefficients (R2) for both the data from the in situ experiment (R2=0.7342, RMSE=0.0205) and the CHRIS data (R2=0.7749, RMSE=0.1013). Our results demonstrate that HDVI can make better the occurrence of saturation limits with the information of multi-angular observation, and is more appropriate for estimating LAI than either HDS or NDVI at high LAI values. Although the new index needs further evaluation, it also has the potential under the condition of dense canopies. It provides the effective improvement to the NDVI and other vegetation indices that are based on the red and NIR spectral bands.
A SIMPLE INTERPRETATION OF THE RICE SPECTRAL INDICES SPACE FOR ASSESSMENT OF HEAVY METAL STRESS
Authors: Wang P. , Huang F. , Liu X. N.
Published: June 2016

Abstract. Heavy metal stress will induce the change of the bio-parameters like chlorophyll, nitrogen and water content of rice. In this paper, we analyzed the traditional spectral index which has strong relationship in general with the three bio-parameters using hyperspectral data acquired by ASD. It is found that some indies do not work well when the heavy metal stress exists, however, some indies still has ability to estimate the above three bio-parameters. A new interpretation is proposed to classify the stress level based on both the physical mechanism analysis and the statistic model after we describe and discuss studies on the expression of spectral indices of rice under heavy metal stress. The 3-axes spectral indices spaces, which are constructed of 3 spectral indices sensitive to rice’s chlorophyll concentration, nitrogen concentration and water concentration respectively, are used to visualize the linkage between heavy metal stress and spectrum of rice canopy.
DETECTION OF BARCHAN DUNES IN HIGH RESOLUTION SATELLITE IMAGES
Authors: Azzaoui M. A. , Adnani M. , El Belrhiti H. , Chaouki I. E. , Masmoudi C.
Published: June 2016

Abstract. Barchan dunes are the fastest moving sand dunes in the desert. We developed a process to detect barchans dunes on High resolution satellite images. It consisted of three steps, we first enhanced the image using histogram equalization and noise reduction filters. Then, the second step proceeds to eliminate the parts of the image having a texture different from that of the barchans dunes. Using supervised learning, we tested a coarse to fine textural analysis based on Kolomogorov Smirnov test and Youden’s J-statistic on co-occurrence matrix. As an output we obtained a mask that we used in the next step to reduce the search area. In the third step we used a gliding window on the mask and check SURF features with SVM to get barchans dunes candidates. Detected barchans dunes were considered as the fusion of overlapping candidates. The results of this approach were very satisfying in processing time and precision.
TESTING OF LAND COVER CLASSIFICATION FROM MULTISPECTRAL AIRBORNE LASER SCANNING DATA
Authors: Bakuła K. , Kupidura P. , Jełowicki Ł.
Published: June 2016

Abstract. Multispectral Airborne Laser Scanning provides a new opportunity for airborne data collection. It provides high-density topographic surveying and is also a useful tool for land cover mapping. Use of a minimum of three intensity images from a multiwavelength laser scanner and 3D information included in the digital surface model has the potential for land cover/use classification and a discussion about the application of this type of data in land cover/use mapping has recently begun. In the test study, three laser reflectance intensity images (orthogonalized point cloud) acquired in green, near-infrared and short-wave infrared bands, together with a digital surface model, were used in land cover/use classification where six classes were distinguished: water, sand and gravel, concrete and asphalt, low vegetation, trees and buildings. In the tested methods, different approaches for classification were applied: spectral (based only on laser reflectance intensity images), spectral with elevation data as additional input data, and spectro-textural, using morphological granulometry as a method of texture analysis of both types of data: spectral images and the digital surface model. The method of generating the intensity raster was also tested in the experiment. Reference data were created based on visual interpretation of ALS data and traditional optical aerial and satellite images. The results have shown that multispectral ALS data are unlike typical multispectral optical images, and they have a major potential for land cover/use classification. An overall accuracy of classification over 90% was achieved. The fusion of multi-wavelength laser intensity images and elevation data, with the additional use of textural information derived from granulometric analysis of images, helped to improve the accuracy of classification significantly. The method of interpolation for the intensity raster was not very helpful, and using intensity rasters with both first and last return numbers slightly improved the results.
AUTOMATIC GENERATION OF BUILDING MAPPING USING DIGITAL, VERTICAL AND AERIAL HIGH RESOLUTION PHOTOGRAPHS AND LIDAR POINT CLOUDS
Authors: Barragán W. , Campos A. , Sanchez G.
Published: June 2016

Abstract. The objective of this research is automatic generation of buildings in the interest areas. This research was developed by using high resolution vertical aerial photographs and the LIDAR point cloud through radiometric and geometric digital processes. The research methodology usesknown building heights and various segmentation algorithms and spectral band combination. The overall effectiveness of the algorithm is 97.2% with the test data.
Nonstationarity of the electrical resistivity and soil moisture relationship in a heterogeneous soil system: a case study
Authors: Michot Didier , Thomas Zahra , Adam Issifou
Published: June 2016

Abstract. Understanding the role of vegetation in the interface between the atmosphere and groundwater is the most decisive key in analyzing the processes involved in water transfer. The main effect of vegetation is its root water uptake, which significantly modifies the processes involved in water transfer in the vadose zone. This paper focuses on mapping temporal and spatial changes in soil moisture using electrical resistivity tomography (ERT). The main objective is to assess how electrical resistivity (ER) is useful for mapping water distribution along a heterogeneous toposequence crossed by a hedgerow. Ten ERT were performed over the studied period for a 28 m long toposequence and compared to matric potential and groundwater level measurements. Soil volumetric water content (VWC) was predicted with two methods: (i) from ER using the Waxman and Smits model (ii) and from matric potential using an experimental retention curve fitted by a Van Genuchten model. Probability density functions (PDFs) of our set of data show that the largest change in mean ER and matric potential was observed in the topsoil layer. We then analyzed the consistency between ER and point measurements in this layer by extracting the arrays at the junction of ER grids and point measurements. PDFs of ER maps at each monitoring time (from T01 to T10) were also calculated to select the most contrasting distributions, corresponding to the wettest (T06) and driest states (T10). Results of ER were consistent with matric-potential measurements, with two different behaviors for locations inside and outside the root zone. A consistent correlation between VWC values from the Waxman and Smits model and those obtained from the retention curve was observed outside the root zone. The heterogeneous soil system inside the root zone shows a different pattern in this relationship. A shift in the relationship between ER and soil moisture for the locations outside and inside the root zone highlights the nonstationarity between wet and dry periods inside the root zone. The equivocal behavior of this relationship shows the limitation of using ER to predict soil moisture in a heterogeneous soil system. Such systems were actually related to the high hedgerow root density and also to a particular topographical context (ditch and bank) that is encountered in Brittany and throughout northwestern Europe.
Soil archives of a Fluvisol: subsurface analysis and soil history of the medieval city centre of Vlaardingen, the Netherlands – an integral approach
Authors: Kluiving Sjoerd , de Ridder Tim , van Dasselaar Marcel , Roozen Stan , Prins Maarten
Published: June 2016

Abstract. The medieval city of Vlaardingen (the Netherlands) was strategically located on the confluence of three rivers, the Maas, the Merwede, and the Vlaarding. A church of the early 8th century AD was already located here. In a short period of time, Vlaardingen developed in the 11th century AD into an international trading place and into one of the most important places in the former county of Holland. Starting from the 11th century AD, the river Maas repeatedly threatened to flood the settlement. The flood dynamics were registered in Fluvisol archives and were recognised in a multidisciplinary sedimentary analysis of these archives. To secure the future of these vulnerable soil archives an extensive interdisciplinary research effort (76 mechanical drill holes, grain size analysis (GSA), thermo-gravimetric analysis (TGA), archaeological remains, soil analysis, dating methods, micromorphology, and microfauna) started in 2011 to gain knowledge on the sedimentological and pedological subsurface of the settlement mound as well as on the well-preserved nature of the archaeological evidence. Pedogenic features are recorded with soil description, micromorphological, and geochemical (XRF – X-ray fluorescence) analysis. The soil sequence of 5 m thickness exhibits a complex mix of "natural" as well as "anthropogenic" layering and initial soil formation that enables us to make a distinction between relatively stable periods and periods with active sedimentation. In this paper the results of this interdisciplinary project are demonstrated in a number of cross-sections with interrelated geological, pedological, and archaeological stratification. A distinction between natural and anthropogenic layering is made on the basis of the occurrence of the chemical elements phosphor and potassium. A series of four stratigraphic and sedimentary units record the period before and after the flooding disaster. Given the many archaeological remnants and features present in the lower units, in geological terms it is assumed that the medieval landscape was submerged while it was inhabited in the 12th century AD. In reaction to a final submersion phase in the late 12th century AD, the inhabitants started to raise the surface of the settlement. Within archaeological terms the boundary between natural and anthropogenic layers is stratigraphically lower, so that in the interpretation of archaeologists, the living ground was dry during the 12th and the 13th centuries AD. In this discussion, the geological interpretation will be compared with alternative archaeological scenarios.
Greenland Ice Sheet seasonal and spatial mass variability from model simulations and GRACE (2003–2012)
Authors: Alexander Patrick M. , Tedesco Marco , Schlegel Nicole-Jeanne , Luthcke Scott B. , Fettweis Xavier , Larour Eric
Published: June 2016

Abstract. Improving the ability of regional climate models (RCMs) and ice sheet models (ISMs) to simulate spatiotemporal variations in the mass of the Greenland Ice Sheet (GrIS) is crucial for prediction of future sea level rise. While several studies have examined recent trends in GrIS mass loss, studies focusing on mass variations at sub-annual and sub-basin-wide scales are still lacking. At these scales, processes responsible for mass change are less well understood and modeled, and could potentially play an important role in future GrIS mass change. Here, we examine spatiotemporal variations in mass over the GrIS derived from the Gravity Recovery and Climate Experiment (GRACE) satellites for the January 2003–December 2012 period using a "mascon" approach, with a nominal spatial resolution of 100 km, and a temporal resolution of 10 days. We compare GRACE-estimated mass variations against those simulated by the Modèle Atmosphérique Régionale (MAR) RCM and the Ice Sheet System Model (ISSM). In order to properly compare spatial and temporal variations in GrIS mass from GRACE with model outputs, we find it necessary to spatially and temporally filter model results to reproduce leakage of mass inherent in the GRACE solution. Both modeled and satellite-derived results point to a decline (of −178.9 ± 4.4 and −239.4 ± 7.7 Gt yr−1 respectively) in GrIS mass over the period examined, but the models appear to underestimate the rate of mass loss, especially in areas below 2000 m in elevation, where the majority of recent GrIS mass loss is occurring. On an ice-sheet-wide scale, the timing of the modeled seasonal cycle of cumulative mass (driven by summer mass loss) agrees with the GRACE-derived seasonal cycle, within limits of uncertainty from the GRACE solution. However, on sub-ice-sheet-wide scales, some areas exhibit significant differences in the timing of peaks in the annual cycle of mass change. At these scales, model biases, or processes not accounted for by models related to ice dynamics or hydrology, may lead to the observed differences. This highlights the need for further evaluation of modeled processes at regional and seasonal scales, and further study of ice sheet processes not accounted for, such as the role of subglacial hydrology in variations in glacial flow.
Application and validation of long-range terrestrial laser scanning to monitor the mass balance of very small glaciers in the Swiss Alps
Authors: Fischer Mauro , Huss Matthias , Kummert Mario , Hoelzle Martin
Published: June 2016

Abstract. Due to the relative lack of empirical field data, the response of very small glaciers (here defined as being smaller than 0.5 km2) to current atmospheric warming is not fully understood yet. Investigating their mass balance, e.g. using the direct glaciological method, is a prerequisite to fill this knowledge gap. Terrestrial laser scanning (TLS) techniques operating in the near infrared range can be applied for the creation of repeated high-resolution digital elevation models and consecutive derivation of annual geodetic mass balances of very small glaciers. This method is promising, as laborious and potentially dangerous field measurements as well as the inter- and extrapolation of point measurements can be circumvented. However, it still needs to be validated. Here, we present TLS-derived annual surface elevation and geodetic mass changes for five very small glaciers in Switzerland (Glacier de Prapio, Glacier du Sex Rouge, St. Annafirn, Schwarzbachfirn, and Pizolgletscher) and two consecutive years (2013/14–2014/15). The scans were acquired with a long-range Riegl VZ®-6000 especially designed for surveying snow- and ice-covered terrain. Zonally variable conversion factors for firn and bare ice surfaces were applied to convert geodetic volume to mass changes. We compare the geodetic results to direct glaciological mass balance measurements coinciding with the TLS surveys and assess the uncertainties and errors included in both methods. Average glacier-wide mass balances were negative in both years, showing stronger mass losses in 2014/15 (−1.65 m w.e.) compared to 2013/14 (−0.59 m w.e.). Geodetic mass balances were slightly less negative but in close agreement with the direct glaciological ones (R2 = 0.91). Due to the dense in situ measurements, the uncertainties in the direct glaciological mass balances were small compared to the majority of measured glaciers worldwide (±0.09 m w.e. yr−1 on average), and similar to uncertainties in the TLS-derived geodetic mass balances (±0.13 m w.e. yr−1).
Altmetrics: medición de la influencia de los medios en el impacto social de la investigación
Authors: Alonso Arévalo Julio , Cordón-Garcia José Antonio , Maltrás Barba Bruno
Published: June 2016

Los medios sociales están cambiando la forma de interactuar, presentar las ideas e información y juzgar la calidad de los contenidos y contribuciones. En los últimos años han surgido cientos de plataformas que permiten compartir libremente todo tipo de información y conectarnos a través de redes. Estas nuevas herramientas generan estadísticas de actividad e interacciones entre sus usuarios tales como menciones, retweets, conversaciones, comentarios en Blogs o en Facebook; gestores de referencias que muestran índices de popularidad de las referencias más compartidas por otros investigadores o repositorios que generan estadísticas de visitas o descargas de artículos. En este documento se analiza que implicaciones y significado tiene altmetrics, cuáles son sus ventajas y críticas, plataformas (Almetric.com, ImpactStory, Plos Altmetrics, PlumX), avances y que beneficios reporta para autores, editores y bibliotecarios. Concluyendo que el valor de las métricas alternativas como una herramienta complementaria de análisis de citas es evidente, aunque se sugiere que se debe investigar más profundamente sobre esta cuestión para desentrañar el significado y el valor potencial de estos indicadores para la evaluación de todo su potencial.
Service Quality Models: A Gap Study
Authors: Kiran Dr. , Singh Ajmer
Published: June 2016

During the past three-four decades, service quality becomes an important area for research. This paper makes an attempt to study different service quality models given by the key contributors in this area. The paper examines different models of service quality on the basis of the review of the literature. The models that have been analyzed in this paper are-Gronroos Model, Lehtinen and Lehtinen three-dimensional model, PZB Gap Model, three components Model, RSQS Model andBrady and Cronin Hierarchical model. From the review of the above models, we find out that there is a lot of work still available which can be done to fill the gap. Hence, this paper will provide an opportunity to the researcher to do research in those areas which are still left to be covered.
Poland: A Country Study “Europe’s Poster Child to Europe’s Problem Child”
Authors: Hunter, Jr. Richard J. , Domanska Marta
Published: June 2016

This article views economic and political events in Poland today in the context of the economic transition that began in 1989. The paper considers issues relating to attracting the creation of the Balcerowicz Plan, foreign direct investment, the current unstable political scene, and concerns for political corruption. It provides the most recent economic statistics relating to many of these issues.
Nordisk Forening for Psykiatrisk Epidemiologi (Nordic Association for Psychiatric Epidemiology – NAPE)
Authors: Munk-Jørgensen Povl
Published: June 2016

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SHP: Smooth Hypocycloidal Paths with Collision-Free and Decoupled Multi-Robot Path Planning
Authors: Ravankar Abhijeet , Ravankar Ankit A. , Kobayashi Yukinori , Emaru Takanori
Published: June 2016

Generating smooth and continuous paths for robots with collision avoidance, which avoid sharp turns, is an important problem in the context of autonomous robot navigation. This paper presents novel smooth hypocycloidal paths (SHP) for robot motion. It is integrated with collision-free and decoupled multi-robot path planning. An SHP diffuses (i.e., moves points along segments) the points of sharp turns in the global path of the map into nodes, which are used to generate smooth hypocycloidal curves that maintain a safe clearance in relation to the obstacles. These nodes are also used as safe points of retreat to avoid collision with other robots. The novel contributions of this work are as follows: (1) The proposed work is the first use of hypocycloid geometry to produce smooth and continuous paths for robot motion. A mathematical analysis of SHP generation in various scenarios is discussed. (2) The proposed work is also the first to consider the case of smooth and collision-free path generation for a load carrying robot. (3) Traditionally, path smoothing and collision avoidance have been addressed as separate problems. This work proposes integrated and decoupled collision-free multi-robot path planning. ‵Node caching‵ is proposed to improve efficiency. A decoupled approach with local communication enables the paths of robots to be dynamically changed. (4) A novel ‵multi-robot map update‵ in case of dynamic obstacles in the map is proposed, such that robots update other robots about the positions of dynamic obstacles in the map. A timestamp feature ensures that all the robots have the most updated map. Comparison between SHP and other path smoothing techniques and experimental results in real environments confirm that SHP can generate smooth paths for robots and avoid collision with other robots through local communication.
Theoretical Insights on Contraction-Type Iterative Learning Control for Biorobotic Systems with Preisach Hysteresis
Authors: Hu Tianjiang , Wang Shuyuan , Zhou Han , Wang Guangming , Zhang Daibing
Published: June 2016

This article offers new insights on the learning control approach developed by [Hu et al. IEEE/ASME Trans. Mechatronics, 19(1): 191–200, 2014]. Theoretical insights are further proposed to unveil why the contraction-type iterative learning control (ILC) schemes are suitable and effective in compensating for hysteresis, widely existing in biorobotic locomotion. Under such circumstances, iteration-based second-order dynamics is adopted to describe the biorobotic systems acted upon by one unknown Preisach hysteresis term. The memory clearing operator is mathematically proven to enable feasibility of contraction-type ILC methods, regardless of whether the initial state is accurately set or not. The simulation examples confirm that the developed iteration-based controller combined with a preceded operator effectively reduce tracking errors caused by the hysteresis nonlinearity. Furthermore, the new insights on theoretical feasibility are definitively corroborated in accordance with the previously published experimental results.
Ant Colony Optimization Combined with Immunosuppression and Parameters Switching Strategy for Solving Path Planning Problem of Landfill Inspection Robots
Authors: Zhang Chao , Li Qing , Chen Peng , Feng Yi-Nan
Published: June 2016

An improved ant colony optimization (ACO) combined with immunosuppression and parameters switching strategy is proposed in this paper. In this algorithm, a novel judgment criterion for immunosuppression is introduced, that is, if the optimum solution has not changed for default iteration number, the immunosuppressive strategy is carried out. Moreover, two groups of parameters in ACO are switched back and forth according to the change of optimum solution as well. Therefore, the search space is expanded greatly and the problem of the traditional ACO such as falling into local minima easily is avoided effectively. The comparative simulation studies for path planning of landfill inspection robots in Asahikawa, Japan are executed, and the results show that the proposed algorithm has better performance characterized by higher search quality and faster search speed.
Instantaneous Kinematics Analysis via Screw-Theory of a Novel 3-

C

RC Parallel Mechanism
Authors: de la Torre Hussein , Rodriguez-Leal Ernesto
Published: June 2016

This paper presents the mobility and kinematics analysis of a novel parallel mechanism that is composed by one base, one platform and three identical limbs with CRC joints. The paper obtains closed-form solutions to the direct and inverse kinematics problems, and determines the mobility of the mechanism and instantaneous kinematics by applying screw theory. The obtained results show that this parallel robot is part of the family 2R1T, since the platform shows 3 DOF, i.e.: one translation perpendicular to the base and two rotations about skew axes. In order to calculate the direct instantaneous kinematics, this paper introduces the vector mh, which is part of the joint velocity vector that multiplies the overall inverse Jacobian matrix. This paper compares the results between simulations and numerical examples using Mathematica and SolidWorks in order to prove the accuracy of the analytical results.
Sobre la articulación administrativa de la cuenca del río Segura entre los siglos VII y VIII: algunos recientes elementos para identificar una frontera «blanda»
Authors: Frey Sánchez Antonio Vicente
Published: June 2016

El motivo del presente trabajo es relacionar el fin del dominio bizantino en el Sudeste de la península Ibérica con la conformación del territorio resultante por los visigodos, a tenor de la información escrita, pero, también, de algunos recientes descubrimientos arqueológicos como reductos fortificados en el entorno de Murcia. La hipótesis aquí defendida es que el contacto que significó la invasión bizantina condujo a los visigodos a crear una frontera militar que perduró hasta la llegada de los árabes en el año 713; que, en consecuencia, su existencia devino en el Pacto de Teodomiro y, por ello, una forma de fosilización de su vertebración administrativa.The purpose of this essay is to link the end of Byzantine rule in the southeast of the Iberian Peninsula with the transformation of the territory by the Visigoths according to written sources, as well as based on recent archaeological discoveries such as fortified bastions near the city of Murcia. The hypothesis presented here is that contact with the Byzantines during their invasion led the Visigoths to create a military frontier that lasted until the arrival of the Arabs in 713. Consequently, this reality brought forth the Pact of Tudmir and led to a relatively unmodified perpetuation of its administrative structure.
Cristianos nuevos y cargos concejiles. Jurados conversos en Córdoba a fines del Medievo
Authors: Cabrera Sánchez Margarita
Published: June 2016

El objetivo del presente trabajo ha sido el estudio prosopográfico de algunos cristianos nuevos que vivieron en Córdoba a finales del Medievo y que estuvieron vinculados al concejo de la ciudad ocupando el cargo de jurados, para lo cual se han consultado fuentes inquisitoriales y notariales. En la primera parte del trabajo, hemos planteado las limitaciones que presentan esas fuentes, así como las posibilidades que ofrecen estas últimas. En la segunda parte, se ha realizado el detallado análisis prosopográfico de siete jurados cordobeses. Todo ello nos ha permitido sacar a la luz numerosos datos hasta ahora inéditos sobre la trayectoria vital de estos últimos, que, desde el ejercicio de sus juraderías, lograron el deseado ascenso social. The purpose of this article is to present a prosopographical study of certain Conversos who lived in Córdoba at the end of the Middle Ages and were linked to the town council as jurados (aldermen). We have used Inquisition and notary records for this purpose. In the first part of our study we outline the limitations and the potential of this type of source. The second part of our study consists of a detailed prosopographical analysis of seven jurados of Córdoba. This allows us to shed new light on previously unknown data concerning the lives of these individuals who managed to climb the social ladder through the exercise of these council offices.
El tumbo de San Pedro de Montes como instrumento de recreación de la memoria institucional
Authors: Agúndez San Miguel Leticia
Published: June 2016

Este artículo pretende indagar en las lógicas de producción del cartulario conocido como Tumbo de San Pedro de Montes para valorar su aportación como instrumento de recreación de la memoria institucional de este monasterio leonés. El análisis de las diferentes estrategias de selección y clasificación que guiaron la arquitectura de este códice diplomático constituye el método principal para la consecución de este propósito. Así, la identificación de los diferentes parámetros memoriales que articulan el discurso historiográfico propuesto en sus folios nos advierte de la existencia de diferentes etapas de recreación de la memoria monástica, de sus tiempos de referencia y de su utilidad variable para los propósitos proyectados con la confección de este cartulario. Un resultado que evidencia la necesaria atención de los investigadores a la materialidad del cartulario para el adecuado aprovechamiento de su contenido.This article aims to explore the logic of production of the cartulary known as the Tumbo of San Pedro de Montes in order to assess its contribution as an instrument for the reconstruction of the institutional memory of this monastery in the kingdom of Leon. The methodology used for this task consists of an analysis of the strategies of selection and classification that stablished the structure of this diplomatic codex. This will allow us to identify the different memory parameters that construct the historiographical discourse present within it. Hence, we can gauge the existence of various stages in the reconstruction of the monastery’s memory, of its time frame and of the various uses of the cartulary’s projected purpose. This study confirms the importance of the material dimension of this cartulary for the adequate use of its content by researchers.
Actualités de la clinique institutionnelle en France : entre résistance et création ?
Authors: Drieu Didier , Crété Pascal
Published: June 2016

La psychothérapie institutionnelle a contribué à transformer le monde asilaire en psychiatrie. Elle s’appuie sur la reconnaissance de la psychanalyse, le développement des approches groupales et éducatives actives. L’institution est pensée comme soignante par le mode de relations entre soignants et sujets accueillis et par la création d’un réseau aux prises avec le quotidien et dans lequel émergent des évènements à valeur sémaphorique ou métaphorique. La proximité et les alternatives à l’hospitalisation sont alors des atouts pour retisser des liens avec l’environnement que la politique psychiatrique des années 80/90 est venue mettre à mal, excepté en pédopsychiatrie où les familles ont été de plus en plus associées.
Le 13e arrondissement : histoire et apports cliniques, épistémologiques et réalisations
Authors: Chagnon Jean-Yves
Published: June 2016

Cet article traite de la création et de l’histoire de l’Association d’hygiène mentale dans le 13e arrondissement de Paris, plus communément dit « le 13e », et ce à travers l’histoire de ses créateurs : Philippe Paumelle, Serge Lebovici, René Diatkine. Psychiatres et psychanalystes, ceux-ci ont élaboré, dans le contexte de l’après-guerre français, un projet communautaire en santé mentale d’orientation psychanalytique, devenu le premier secteur de psychiatrie, modèle institutionnel ayant durablement influencé la pratique de la psychiatrie humaniste en France.
L’apport de la psychanalyse dans les prises en charges hospitalières d’adolescents : l’expérience du département de psychiatrie de l’adolescent et du jeune adulte de l’Institut Mutualiste Montsouris (1963-2015)
Authors: Balsan Guillemette
Published: June 2016

Retracer l’histoire de l’institution permet de mettre en exergue les diverses strates de ce qui fonde aujourd’hui les soins psychiatriques auprès des adolescents à l’Institut Mutualiste Montsouris (IMM). Est alors interrogé ce qu’il en est à ce jour de la transmission de cet héritage, et en particulier de la place de la psychanalyse. L’IMM est organisé en différentes unités de soins articulées de façon transversale. Ce dispositif s’appuie sur la plurifocalité et la multidisciplinarité, au regard des spécificités de la psychopathologie de l’adolescent, notamment les caractéristiques transférentielles afférentes à la problématique centrale de la séparation-autonomisation-subjectivation.
L’actualité de la psychanalyse : de sa place dans l’institution du soin aux dispositifs cliniques
Authors: Proia-Lelouey Nadine
Published: June 2016

L’article pose sur deux registres différents mais interdépendants la place de la psychanalyse dans le soin aujourd’hui. Il s’agit dans un premier temps de montrer, en se référant à des analyses sociologiques, que cette question est étroitement liée aux différentes manières d’appréhender la pathologie mentale au cours du 20e siècle. Evolution elle-même liée à des changements de la condition anthropologique du sujet. Ainsi, si la psychanalyse a été au coeur de l’institution du soin pour avoir largement contribué dans les années 1950/1960 au passage du paradigme de lapathologie mentaleà celui de lasouffrance psychique, elle a, en revanche, largement pâti d’une rupture qui, au cours des années 1980/1990, a mis au centre du soin le paradigme normatif de lasanté mentale. La psychanalyse devient alors une forme de résistance afin que la norme n’efface pas totalement le sujet dans les institutions de soins. Mais la psychanalyse doit se transformer et penser de nouveaux dispositifs à partir des nouvelles conditions anthropologiques du sujet. L’auteure soutient que l’enjeu fondamental de cette nouvelle psychanalyse concerne la fonctionnalité du préconscient et l’accès à la capacité réflexive. Elle développe cette réflexion à partir des travaux contemporains engagés par R. Kaës et R. Roussillon sur l’analyse transitionnelle.
Pratiquer la psychothérapie dans un CSSS : une utopie ?
Authors: Cardinal Vincent
Published: June 2016

L’auteur s’interroge sur la pratique de la psychothérapie d’orientation analytique en institution et ses conditions de possibilité dans le contexte d’une transformation radicale du milieu de la santé mentale au Québec. Il met en lumière les écueils d’une telle pratique et les vecteurs qui freinent ou qui propulsent certaines formes de psychothérapie dans le champ de la santé mentale en institution. Deux formes de pensée et leurs répercussions sur le système de soins sont examinées : l’introduction des neurosciences et de la pensée gestionnaire sont au centre de ce débat. Enfin, l’auteur propose un modèle de soins qui tente de concilier une perspective psychanalytique et l’allocation des ressources disponibles dans un milieu institutionnel de soins en santé mentale jeunesse.
L’avis des acteurs des séances d’analyse de pratiques professionnelles pour les enseignants stagiaires
Authors: Connac Sylvain
Published: June 2016

Les enseignants stagiaires en France bénéficient d’une formation initiale qui, parfois, les invite à analyser des situations rencontrées lors de leurs expériences en classe. Cette recherche s’intéresse à un dispositif spécifique : les Groupes de Formation à l’Analyse de Pratiques Professionnelles (GFAPP). Elle consiste à présenter l’avis des animateurs de ces groupes d’analyse (recueillis à partir d’entretiens semi-directifs) ainsi que celui des enseignants stagiaires (collectés par l’intermédiaire d’un questionnaire auto-administré), sur trois années scolaires. Elle met notamment en avant que les séances d’analyse de pratiques participent à une démarche de professionnalisation. Ces séances visent à appréhender la complexité de l’acte d’enseigner et permettent aux professeurs stagiaires de se sentir accompagnés dans l’exercice de leur première année d’enseignement.
Accompagner un moment de transition professionnelle par un dispositif de formation-action réflexif mené auprès de conseillers en orientation et en accompagnement professionnels
Authors: Poulin Martine
Published: June 2016

La question de la professionnalisation des acteurs fait souvent débat, car elle pourrait sous-entendre qu’un acteur qui se professionnalise n’est pas un bon professionnel voire qu’il n’est pas compétent. Cette position est d’autant plus renforcée quand ces acteurs vivent des moments de transition professionnelle, où les doutes et incertitudes viennent bousculer leur identité professionnelle. Comment dès lors les accompagner au mieux dans ces moments qui questionnement ?

Cet article vise à montrer comment par un dispositif de formation-action réflexif une démarche de professionnalisation peut être, d’une part un processus de construction des sujets leur permettant de prendre conscience de leur bagage d’expérience, de leur professionnalité et, d’autre part un processus contribuant à la construction de leur posture d’apprenance, de sujet apprenant. Il s’agit d’un processus en mouvement qui s’inscrit dans la philosophie de la formation et l’orientation tout au long de la vie, dans lequel le sujet doit se reconnaître comme un acteur au travail, comme un auteur de son travail et comme un sujet en travail sur son activité constructive favorisant ainsi son développement.
Analyse du discours des enseignants-chercheurs sur leur activité professionnelle : vers une transformation identitaire du métier ?
Authors: Millet Charlyne , Oget David , Sonntag Michel
Published: June 2016

Cet article présente une analyse du discours d’enseignants-chercheurs sur leur activité professionnelle. Notre analyse met au jour une partie immergée de l’activité, bien plus variée et dense que ce que laissent apparaître les prescriptions officielles. Les discours se font également l’écho d’insatisfactions en partie dues au difficile morcellement entre des priorités diverses et à l’augmentation de l’administratif dans des temporalités de plus en plus étroites. Ces tensions émergentes sont présentées comme étant, d’une part, à l’origine d’un conflit de valeurs et d’autre part aux sources de recompositions identitaires, ce qui nous amène à nous interroger sur les besoins de reconnaissance exprimés en filigrane dans les discours.
Broadening of absorption band by coupled gap plasmon resonances in a near-infrared metamaterial absorber
Authors: Cong Jiawei , Yao Hongbing , Gong Daolei , Chen Mingyang , Tong Yanqun , Fu Yonghong , Ren Naifei
Published: June 2016

We propose a strategy to broaden the absorption band of the conventional metamaterial absorber by incorporating alternating metal/dielectric films. Up to 7-fold increase in bandwidth and ∼95% average absorption are achieved arising from the coupling of induced multiple gap plasmon resonances. The resonance coupling is analytically demonstrated using the coupled oscillator model, which reveals that both the optimal coupling strength and the resonance wavelength matching are required for the enhancement of absorption bandwidth. The presented multilayer design is easily fabricated and readily implanted to other absorber configurations, offering a practical avenue for applications in photovoltaic cells and thermal emitters.
Electric-field-controlled suppression of Walker breakdown and chirality switching in magnetic domain wall motion
Authors: Chen Hong-Bo , Li You-Quan
Published: June 2016

We theoretically study the dynamics of a magnetic domain wall controlled by an electric field in the presence of the spin flexoelectric interaction. We reveal that this interaction generates an effective spin torque and results in significant changes in the current-driven domain wall motion. In particular, the electric field can stabilize the domain wall motion, leading to strong suppression of the current-induced Walker breakdown and thus allowing a higher maximum wall velocity. We can furthermore use this electric-field control to efficiently switch the chirality of a moving domain wall in the steady regime.
Joule heating in spin Hall geometry
Authors: Taniguchi Tomohiro
Published: June 2016

The theoretical formula for the entropy production rate in the presence of spin current is derived using the spin-dependent transport equation and thermodynamics. This theory is applicable regardless of the source of the spin current, for example, an electric field, a temperature gradient, or the Hall effect. It reproduces the result in a previous work on the dissipation formula when the relaxation time approximation is applied to the spin relaxation rate. By using the developed theory, it is found that the dissipation in the spin Hall geometry has a contribution proportional to the square of the spin Hall angle.
Resistance switching memory characteristics of CaF2/Si/CaF2 resonant-tunneling quantum-well heterostructures sandwiched by nanocrystalline Si secondary barrier layers
Authors: Kuwata Yuya , Suda Keita , Watanabe Masahiro
Published: June 2016

A novel resistance switching memory using CaF2/Si/CaF2 resonant-tunneling quantum well heterostructures sandwiched by nanocrystalline Si (nc-Si) as secondary barrier layers has been proposed and the room temperature current–voltage characteristics of the basic resistance switching memory operation have been demonstrated. A resistance switching voltage of 1.0 V, a peak current density of approximately 42 kA/cm2, and an ON/OFF ratio of 2.8 were observed. In particular, more than 28000 write-read-erase cyclic memory operations have been demonstrated by applying pulsed input voltage sequences, which suggests better endurance than the device using a CaF2/CdF2/CaF2 heterostructure.
Epitaxial growth of hexagonal tungsten bronze CsxWO3 films in superconducting phase region exceeding bulk limit
Authors: Soma Takuto , Yoshimatsu Kohei , Ohtomo Akira
Published: June 2016

We report epitaxial synthesis of superconducting Cs
x
WO3 (x = 0.11, 0.20, and 0.31) films on Y-stabilized ZrO2 (111) substrates. The hexagonal crystal structure was verified not only for the composition within the stable region of the bulk (x = 0.20 and 0.31), but also for the out-of-range composition (x = 0.11). The onset of the superconducting transition was recorded at 5.8 K for x = 0.11. We found a strong correlation between the superconducting transition temperature (T
C) and the c-axis length, irrespective of the Cs content. These results indicated that the hidden superconducting phase region of hexagonal tungsten bronze is accessible using epitaxial synthesis of lightly doped films.
Two-dimensional concentration distribution of reactive oxygen species transported through a tissue phantom by atmospheric-pressure plasma-jet irradiation
Authors: Kawasaki Toshiyuki , Sato Akihiro , Kusumegi Shota , Kudo Akihiro , Sakanoshita Tomohiro , Tsurumaru Takuya , Uchida Giichiro , Koga Kazunori , Shiratani Masaharu
Published: June 2016

The two-dimensional concentration distribution of reactive oxygen species (ROSs) transported through an agarose-film tissue phantom by atmospheric-pressure plasma-jet irradiation is visualized using a KI-starch gel reagent. Oxygen addition to helium enhances ROS transportation through the film. A radial ROS distribution pattern at the plasma-irradiated film surface changes into a doughnut-shaped pattern after passing through the film. The ROS transportation speed is 0.14–0.2 mm/min. We suggest that there are two types of ROS transportation pathways in the plasma-irradiated film: linear and circular. The majority of ROSs are transported through the circular pathway. ROS concentration distributions changed markedly with irradiation distance. Diffusive ROS transportation due to a concentration gradient is negligible in plasma-irradiated films.