bluuebunny/crossref_metadata_2025 huggingface dataset:
Rapid Airplane Detection in Remote Sensing Images Based on Multilayer Feature Fusion in Fully Convolutional Neural Networks
Authors: Xu Yuelei , Zhu Mingming , Xin Peng , Li Shuai , Qi Min , Ma Shiping
Published: July 2018

To address the issues encountered when using traditional airplane detection methods, including the low accuracy rate, high false alarm rate, and low detection speed due to small object sizes in aerial remote sensing images, we propose a remote sensing image airplane detection method that uses multilayer feature fusion in fully convolutional neural networks. The shallow layer and deep layer features are fused at the same scale after sampling to overcome the problems of low dimensionality in the deep layer and the inadequate expression of small objects. The sizes of candidate regions are modified to fit the size of the actual airplanes in the remote sensing images. The fully connected layers are replaced with convolutional layers to reduce the network parameters and adapt to different input image sizes. The region proposal network shares convolutional layers with the detection network, which ensures high detection efficiency. The simulation results indicate that, when compared to typical airplane detection methods, the proposed method is more accurate and has a lower false alarm rate. Additionally, the detection speed is considerably faster and the method can accurately and rapidly complete airplane detection tasks in aerial remote sensing images.
Evaluation of Atmospheric Effects on Interferograms Using DEM Errors of Fixed Ground Points
Authors: Nonaka Takashi , Asaka Tomohito , Iwashita Keishi
Published: July 2018

High-resolution synthetic aperture radar (SAR) data are widely used for disaster monitoring. To extract damaged areas automatically, it is essential to understand the relationships among the sensor specifications, acquisition conditions, and land cover. Our previous studies developed a method for estimating the phase noise of interferograms using several pairs of TerraSAR-X series (TerraSAR-X and TanDEM-X) datasets. Atmospheric disturbance data are also necessary to interpret the interferograms; therefore, the purpose of this study is to estimate the atmospheric effects by focusing on the difference in digital elevation model (DEM) errors between repeat-pass (two interferometric SAR images acquired at different times) and single-pass (two interferometric SAR images acquired simultaneously) interferometry. Single-pass DEM errors are reduced due to the lack of temporal decorrelation and atmospheric disturbances. At a study site in the city of Tsukuba, a quantitative analysis of DEM errors at fixed ground objects shows that the atmospheric effects are estimated to contribute 75% to 80% of the total phase noise in interferograms.
Partial Inductance Model of Induction Machines for Fault Diagnosis
Authors: Pineda-Sanchez Manuel , Puche-Panadero Ruben , Martinez-Roman Javier , Sapena-Bano Angel , Riera-Guasp Martin , Perez-Cruz Juan
Published: July 2018

The development of advanced fault diagnostic systems for induction machines through the stator current requires accurate and fast models that can simulate the machine under faulty conditions, both in steady-state and in transient regime. These models are far more complex than the models used for healthy machines, because one of the effect of the faults is to change the winding configurations (broken bar faults, rotor asymmetries, and inter-turn short circuits) or the magnetic circuit (eccentricity and bearing faults). This produces a change of the self and mutual phase inductances, which induces in the stator currents the characteristic fault harmonics used to detect and to quantify the fault. The development of a machine model that can reflect these changes is a challenging task, which is addressed in this work with a novel approach, based on the concept of partial inductances. Instead of developing the machine model based on the phases’ coils, it is developed using the partial inductance of a single conductor, obtained through the magnetic vector potential, and combining the partial inductances of all the conductors with a fast Fourier transform for obtaining the phases’ inductances. The proposed method is validated using a commercial induction motor with forced broken bars.
Development of an ESD Indicator for Teacher Training and the National Monitoring for ESD Implementation in Germany
Authors: Waltner Eva-Maria , Rieß Werner , Brock Antje
Published: July 2018

Education for Sustainable Development (ESD) is a core element of UNESCO’s Sustainable Development Goal (SDGs) Target 4.7, which seeks to ensure that all learners acquire the knowledge and skills needed to promote sustainable development through education for sustainable development. The German Federal Ministry for Education and Research (BMBF) followed suit in 2015 and launched a high scale national monitoring of the current state of ESD implementation. In this context, suitable ESD indicators should be analyzed to inform policy and research agendas. The present project is part of the national monitoring within Germany’s Global Action Program (GAP) actions. The research team at the University of Education in Freiburg conducted a study to evaluate the accessibility of data and the measurability of ESD-relevant teacher training (TT). During the two-step procedure for data collection on ESD-relevant TTs in Germany, an extensive list of ESD related search terms first captured 66,935 TTs with possible ESD relevance in the evaluation period. Second, the collected data was analyzed using Mayring’s qualitative content analysis. The 66,935 TTs were thereby reduced to 3818 TTs with different degrees of ESD relevance. The results of the evaluation study show that suitable ESD indicators, the FESD (formula for the ESD-indicator for TTs) (basic), FESD (basic, rated) and FESD (pro), could be developed and calculated for 15 of 16 federal states in Germany. The gathered insights show a path towards ESD monitoring in TT to clarify the needs and achievements of ESD implementation in the field of continuing education of teachers. However, the presented indicators only show a possible path for ESD indicator development. A comprehensive set of ESD indicators should also focus on the micro or output (e.g., ESD competencies) level. These insights for the future seem worth striving for not only in Germany or on the national level but also internationally to foster ESD, Target 4.7 of the SDGs and the SDGs in general.
The Influence of Entrepreneurship and Social Networks on Economic Growth—From a Sustainable Innovation Perspective
Authors: Chen Feng-Wen , Fu Long-Wang , Wang Kai , Tsai Sang-Bing , Su Ching-Hsia
Published: July 2018

A large body of evidence demonstrates the key role played by entrepreneurship in promoting economic growth. However, the potential connections between entrepreneurship, social networking, and economic development still require in-depth exploration and discussion. This paper first establishes a theoretical framework combining entrepreneurship capital theory, resource dependence theory and transaction cost theory, then examines the possible associations between entrepreneurship, social networks, and economic growth based on the dynamic panel data model. To achieve the research objectives, the investigators collected data spanning the period between 2007 and 2016 from 31 provinces and cities in China. The authors adopted the enterprise employment rate as a measure of entrepreneurship and used the information sharing rate to assess social networks, which were then both introduced into the economic growth model. Additionally, by using the system of generalized method of moments (GMM) estimation, this article measures the influence of entrepreneurship and social networks on the economic growth of a local area. The empirical results reveal that both entrepreneurship and social networking significantly promote regional economic growth in China. Further, the effect of entrepreneurship is significantly enhanced after introducing the joint effects of entrepreneurship and social network. The findings also expound that entrepreneurship of the eastern zone and social networking of the central section exhibit the strongest potential for economic development of the respective areas. Conversely, entrepreneurship may actually hinder the economic advancement of the central areas of China. Corresponding to the findings, the researchers suggest that it is necessary to devise flexible policies for heterogeneous entrepreneurial environments and to appropriately utilize interpersonal networks to maximize the efficiency of the outputs of economic activity, which are likely to strengthen the role of entrepreneurship and social networks in contemporary economic and business milieu.
A Conglomerate’s Effort for Co-Prospering with Its Subcontractors and Firm Value: Evidence from Korea
Authors: Choi Seong-jin , Ko Jong Kwon , Jung Sukyoon
Published: July 2018

Shared growth effort, which is also known as mutual growth, has emerged as one of the most important keywords in Korean economy. This study examines whether a conglomerate’s shared growth effort evaluated by the Shared Growth Commission is valued by market investors. Using our full sample, we find that firms participating in shared growth evaluation have a higher firm value. The results from the full sample show that firm’s effort on shared growth is rewarded in the Korean capital market. However, after matching firms by size of sales and return on assets to better control for firm characteristics, we find that neither the participation nor a higher (lower) rating of the shared growth evaluation is associated with firm value. This implies that the result from the full sample may be capturing firm characteristics, instead of the effects of shared growth effort, thus market investors do not consider conglomerate’s shared growth effort as a value-enhancing strategy. Using a recently introduced shared-growth index, the findings in our study provide preliminary but important evidence on how creating shared value (CSV) is related to firm value.
Impacts of Grading Rule on Urban Thermal Landscape Pattern Research
Authors: Zhang Wei , Chen Feng
Published: July 2018

The thermodynamic landscape method is becoming a more popular approach for urban heat island research with the development of remote sensing technology. However, a limited amount of research discusses the theoretical and methodological issues of this method. This paper analyzed the reliability and stability of the results of thermal landscape pattern analysis with six different grading rules through surface temperature retrieval, landscape pattern analysis, and Geographic Information System (GIS) spatial analysis. The results demonstrate the following points. (1) The six grading methods can be categorized into two types: pixel number methods and temperature range methods. The grading results of the two kinds of methods lack comparability, whereas the grading results within one kind of method have high comparability. The temperature range methods have good consistency. The average value of the consistency indices (Si) of thermal landscape levels reaches up to 81.55%. The anomaly temperature method and standard deviation method are recommended for future research. (2) The grading rule significantly affects the stability of landscape indices, and its average variation coefficient reaches up to 22.36%. The authors suggest the use of landscape indices that have strong stability, such as shape index and landscape division index, in future research. (3) The results of the sensitivity analysis show that the change of the temperature range of thermal landscape levels affects landscape indices slightly, whereas the effect of the change of the level number of thermal landscapes on landscape indices is intense. The authors suggest categorizing the thermal landscape into six levels in future research in order to enhance the consistency and comparability among case studies.
Applying a Mesoscopic Transport Model to Analyse the Effects of Urban Freight Regulatory Measures on Transport Emissions—An Assessment
Authors: Oskarbski Jacek , Kaszubowski Daniel
Published: July 2018

Sustainable urban freight management is a growing challenge for local authorities due to social pressures and increasingly more stringent environmental protection requirements. Freight and its adverse impacts, which include emissions and noise, considerably influence the urban environment. This calls for a reliable assessment of what can be done to improve urban freight and meet stakeholders’ requirements. While changes in a transport system can be simulated using models, urban freight models are quite rare compared to the tools available for analysing private and public transport. Therefore, this article looks at ways to extend Gdynia’s existing mesoscopic transport model by adding data from delivery surveys and examines the city’s capacity for reducing CO2 emissions through the designation of dedicated delivery places. The results suggest that extending the existing model by including freight-specific data can be justified when basic regulatory measures are to be used to improve freight transport. There are, however, serious limitations when an exact representation of the urban supply chain structure is needed, an element which is required for modelling advanced measures.
Constraints on the Promotion of Prefabricated Construction in China
Authors: Jiang Lei , Li Zhongfu , Li Long , Gao Yunli
Published: July 2018

Prefabricated construction has been proven effective, environmentally-friendly, and labor-friendly. It is widely considered a sustainable approach to the construction industry. China is still in the initial process of adopting prefabricated construction practices and has conducted a few studies to date on the constraints of prefabricated construction up to the operation stage. This paper focuses on the major factors obstructing prefabricated construction development in China. Twenty-three variables affecting said development are summarized per the results of a literature review and a semi-structured interview. A questionnaire was delivered to developers, designers, contractors, engineers, component suppliers, and property managers. A total of 160 valid respondents were collected. Twenty-three variables were ranked by the mean score after an Analysis of Variance (ANOVA) indicated that no statistical differences in the data from six stakeholders. Principal Component Analysis (PCA) was employed to reduce the dimensionality of four factors: industry chain, cost, social climate and public opinion, and risk. The risk is found to be the main influencing factor even though it is rarely the focal point of research on prefabricated construction. The findings presented in this paper may assist different stakeholders in better understanding issues with prefabricated construction practices in China at present and, therefore, find workable solutions.
The Impact of Sustainable Sourcing on Customer Perceptions: Association by Guilt from Scandals in Local vs. Offshore Sourcing Countries
Authors: Veit Claire , Lambrechts Wim , Quintens Lieven , Semeijn Janjaap
Published: July 2018

This study analyzes whether customer perceptions towards sustainability are affected by a company’s country of origin and sourcing strategies. This study builds upon the literature regarding customer interest in sustainable products. It adds the country of origin to the link between customer and company, and analyzes if and how customer perceptions change when they are introduced to a sustainability scandal, hence analyzing possible ‘association by guilt’. It compares their reactions to offshore scandals and to local scandals, therefore taking psychic distance as an important variable into consideration. Customer perceptions of company sustainability was found to have an impact on purchasing behavior. Findings show that perceptions are influenced by psychic distance. Furthermore, companies should take into account the risk of association by guilt when developing their global sourcing strategies.
Sustainable Land Management, Adaptive Silviculture, and New Forest Challenges: Evidence from a Latitudinal Gradient in Italy
Authors: Fabbio Gianfranco , Cantiani Paolo , Ferretti Fabrizio , Di Salvatore Umberto , Bertini Giada , Becagli Claudia , Chiavetta Ugo , Marchi Maurizio , Salvati Luca
Published: July 2018

Aimed at reducing structural homogeneity and symmetrical competition in even-aged forest stands and enhancing stand structure diversity, the present study contributes to the design and implementation of adaptive silvicultural practices with two objectives: (1) preserving high wood production rates under changing environmental conditions and (2) ensuring key ecological services including carbon sequestration and forest health and vitality over extended stand life-spans. Based on a quantitative analysis of selected stand structure indicators, the experimental design was aimed at comparing customary practices of thinning from below over the full standing crop and innovative practices of crown thinning or selective thinning releasing a pre-fixed number of best phenotypes and removing direct crown competitors. Experimental trials were established at four beech forests along a latitudinal gradient in Italy: Cansiglio, Veneto; Vallombrosa, Tuscany; Chiarano, Abruzzo; and Marchesale, Calabria). Empirical results indicate a higher harvesting rate is associated with innovative practices compared with traditional thinning. A multivariate discriminant analysis outlined significant differences in post-treatment stand structure, highlighting the differential role of structural and functional variables across the study sites. These findings clarify the impact of former forest structure in shaping post-treatment stand attributes. Monitoring standing crop variables before and after thinning provides a basic understanding to verify intensity and direction of the applied manipulation, the progress toward the economic and ecological goals, as well as possible failures or need for adjustments within a comprehensive strategy of adaptive forest management.
A Scale at 10 MeV, Gravitational Topological Vacuum, and Large Extra Dimensions
Authors: Aydemir Ufuk
Published: July 2018

We discuss a possible scale of gravitational origin at around 10 MeV, or 10−12 cm, which arises in the MacDowell–Mansouri formalism of gravity due to the topological Gauss–Bonnet term in the action, as pointed out by Bjorken several years ago. A length scale of the same size emerges also in the Kodama solution in gravity, which is known to be closely related to the MacDowell–Mansouri formulation. We particularly draw attention to the intriguing incident that the existence of six compact extra dimensions originated from TeV-scale quantum gravity as well points to a length scale of 10−12 cm, as the compactification scale. The presence of six such extra dimensions is also in remarkable consistency with the MacDowell–Mansouri formalism; it provides a possible explanation for the factor of ∼10120 multiplying the Gauss–Bonnet term in the action. We also comment on the relevant implications of such a scale regarding the thermal history of the universe motivated by the fact that it is considerably close to 1–2 MeV below which the weak interactions freeze out, leading to Big Bang Nucleosynthesis.
Improved Induction of Anti-Melanoma T Cells by Adenovirus-5/3 Fiber Modification to Target Human DCs
Authors: Chondronasiou Dafni , Eisden Tracy-Jane T. H. D. , Stam Anita G. M. , Matthews Qiana L. , Icyuz Mert , Hooijberg Erik , Dmitriev Igor , Curiel David T. , De Gruijl Tanja D. , Van de Ven Rieneke
Published: July 2018

To mount a strong anti-tumor immune response, non T cell inflamed (cold) tumors may require combination treatment encompassing vaccine strategies preceding checkpoint inhibition. In vivo targeted delivery of tumor-associated antigens (TAA) to dendritic cells (DCs), relying on the natural functions of primary DCs in situ, represents an attractive vaccination strategy. In this study we made use of a full-length MART-1 expressing C/B-chimeric adenoviral vector, consisting of the Ad5 capsid and the Ad3 knob (Ad5/3), which we previously showed to selectively transduce DCs in human skin and lymph nodes. Our data demonstrate that chimeric Ad5/3 vectors encoding TAA, and able to target human DCs in situ, can be used to efficiently induce expansion of functional tumor-specific CD8+ effector T cells, either from a naïve T cell pool or from previously primed T cells residing in the melanoma-draining sentinel lymph nodes (SLN). These data support the use of Ad3-knob containing viruses as vaccine vehicles for in vivo delivery. “Off-the-shelf” DC-targeted Ad vaccines encoding TAA could clearly benefit future immunotherapeutic approaches.
First thia-Diels–Alder reactions of thiochalcones with 1,4-quinones
Authors: Mlostoń Grzegorz , Urbaniak Katarzyna , Urbaniak Paweł , Marko Anna , Linden Anthony , Heimgartner Heinz
Published: July 2018

Aryl and hetaryl thiochalcones react smoothly with 1,4-quinones in THF solution at 60 °C yielding the corresponding fused 4H-thiopyrans after spontaneous dehydrogenation of the initially formed [4 + 2] cycloadducts. In general, the yields of the isolated products were high. With 5-chloro-10-hydroxy-1,4-anthraquinone, the thia-Diels–Alder reaction occurred with complete regioselectivity. In the case of the reaction of vitamin K3 (menadione) with diphenylthiochalcone, the initial cycloadduct was isolated in 37% yield.
Optical Dimming of RW Aur Associated with an Iron-rich Corona and Exceptionally High Absorbing Column Density
Authors: Günther Hans Moritz , Birnstiel T. , Huenemoerder D. P. , Principe D. A. , Schneider P. C. , Wolk S. J. , Dubois Franky , Logie Ludwig , Rau Steve , Vanaverbeke Sigfried
Published: July 2018

RW Aur is a binary system composed of two young, low-mass stars. The primary, RW Aur A, has undergone visual dimming events (ΔV = 2–3 mag) in 2011, 2014–16, and 2017–2018. Visual and IR observations indicate a gray absorber that moved into the line of sight. This dimming is also associated with changes in the outflow. In 2017, when the optical brightness was almost 2 mag below the long-term average, we triggered a Chandra observation to measure the absorbing column density N
H and to constrain dust properties and the gas-to-dust ratio of the absorber. In 2017, the X-ray spectrum is more absorbed than it was in the optically bright state (

) and shows significantly more hot plasma than in X-ray observations taken before. Furthermore, a new emission feature at 6.63 ± 0.02 keV (statistic) ±0.02 keV (systematic) appeared, indicating an Fe abundance an order of magnitude above solar, in contrast with previous sub-solar Fe abundance measurements. Comparing X-ray absorbing column density N
H and optical extinction A

V
, we find that either the gas-to-dust ratio in the absorber is orders of magnitude higher than in the ISM, or the absorber has undergone significant dust evolution. Given the high column density coupled with changes in the X-ray spectral shape, this absorber is probably located in the inner disk. We speculate that a breakup of planetesimals or a terrestrial planet could supply large grains, causing gray absorption; some of these grains would be accreted and enrich the stellar corona with iron, which could explain the inferred high abundance.
SETI with Gaia: The Observational Signatures of Nearly Complete Dyson Spheres
Authors: Zackrisson Erik , Korn Andreas J. , Wehrhahn Ansgar , Reiter Johannes
Published: July 2018

A star enshrouded in a Dyson sphere with a high covering fraction may manifest itself as an optically subluminous object with a spectrophotometric distance estimate significantly in excess of its parallax distance. Using this criterion, the Gaia mission will in coming years allow for Dyson sphere searches that are complementary to searches based on waste-heat signatures at infrared wavelengths. A limited search of this type is also possible at the current time, by combining Gaia parallax distances with spectrophotometric distances from ground-based surveys. Here, we discuss the merits and shortcomings of this technique and carry out a limited search for Dyson sphere candidates in the sample of stars common to Gaia Data Release 1 and Radial Velocity Experiment (RAVE) Data Release 5. We find that a small fraction of stars indeed display distance discrepancies of the type expected for nearly complete Dyson spheres. To shed light on the properties of objects in this outlier population, we present follow-up high-resolution spectroscopy for one of these stars, the late F-type dwarf TYC 6111-1162-1. The spectrophotometric distance of this object is about twice that derived from its Gaia parallax, and there is no detectable infrared excess. While our analysis largely confirms the stellar parameters and the spectrophotometric distance inferred by RAVE, a plausible explanation for the discrepant distance estimates of this object is that the astrometric solution has been compromised by an unseen binary companion, possibly a rather massive white dwarf (≈1 M
⊙). This scenario can be further tested through upcoming Gaia data releases.
New Evidence for the Dusty Wind Model: Polar Dust and a Hot Core in the Type-1 Seyfert ESO 323-G77*
Authors: Leftley James H. , Tristram Konrad R. W. , Hönig Sebastian F. , Kishimoto Makoto , Asmus Daniel , Gandhi Poshak
Published: July 2018

Infrared interferometry of Seyfert galaxies has revealed that their warm (300–400 K) dust emission originates primarily from polar regions instead of from an equatorial dust torus as predicted by the classic AGN unification scheme. We present new data for the type 1.2 object ESO 323-G77 obtained with the MID-infrared interferometric Instrument and a new detailed morphological study of its warm dust. The partially resolved emission on scales between 5 and 50 mas (1.6–16 pc) is decomposed into a resolved and an unresolved source. Approximately 65% of the correlated flux between 8 and 13 μm is unresolved at all available baseline lengths. The remaining 35% is partially resolved and shows angular structure. From geometric modeling, we find that the emission is elongated along a position angle of 155° ± 14° with an axis ratio (major/minor) of 2.9 ± 0.3. Because the system axis is oriented in the position angle 174° ± 2°, we conclude that the dust emission of this object is also polar extended. A CAT3D-WIND radiative transfer model of a dusty disk and a dusty wind with a half opening angle of 30° can reproduce both the interferometric data and the SED, while a classical torus model is unable to fit the interferometric data. We interpret this as further evidence that a polar dust component is required even for low-inclination type 1 sources.
Comparison of the Extraplanar Hα and UV Emissions in the Halos of Nearby Edge-on Spiral Galaxies
Authors: Jo Young-Soo , Seon Kwang-il , Shinn Jong-Ho , Yang Yujin , Lee Dukhang , Min Kyoung-Wook
Published: July 2018

We compare vertical profiles of the extraplanar Hα emission to those of the UV emission for 38 nearby edge-on late-type galaxies. It is found that detection of the “diffuse” extraplanar dust (eDust), traced by the vertically extended, scattered UV starlight, always coincides with the presence of the extraplanar Hα emission. A strong correlation between the scale heights of the extraplanar Hα and UV emissions is also found; the scale height at Hα is found to be ∼0.74 of the scale height at FUV. Our results may indicate the multiphase nature of the diffuse ionized gas and dust in the galactic halos. The existence of eDust in galaxies where the extraplanar Hα emission is detected suggests that a larger portion of the extraplanar Hα emission than that predicted in previous studies may be caused by Hα photons that originate from H ii regions in the galactic plane and are subsequently scattered by the eDust. This possibility raise an advantage in studying the extraplanar diffuse ionized gas. We also find that the scale heights of the extraplanar emissions normalized to the galaxy size correlate well with the star formation rate surface density of the galaxies. The properties of eDust in our galaxies is on a continuation line of that found through previous observations of the extraplanar polycyclic aromatic hydrocarbons emission in more active galaxies known to have galactic winds.
The Mass and Absorption Column Densities of Galactic Gaseous Halos. II. The High Ionization State Ions
Authors: Qu Zhijie , Bregman Joel N.
Published: July 2018

The high ionization state ions trace the hot gases in the universe, of which gaseous halos around galaxies are a major contributor. Following Qu & Bregman, we calculate the gaseous halo contribution to the observed column density distributions for these ions by convolving the gaseous halo model with the observed stellar mass function. The predicted column density distribution reproduces the general shape of the observed column density distribution—a broken power law with the break point at

for O vi. Our modeling suggests that the high column density systems originate from galaxies for which the virial temperature matches the temperature of the ionization fraction peak. Specifically, this mass range is

for O vi,

for Ne viii, and higher for higher ionization state ions (assuming

). A comparison with the observed O vi column density distribution prefers a large radius model, where the maximum radius is twice the virial radius. This model may be in conflict with the more poorly defined Ne viii column density distribution, suggesting that further observations are warranted. The redshift evolution of the high column density systems is dominated by the change of the cosmic star formation rate, which decreases from z = 1.0 to the local universe. Some differences at lower column densities between our models and observations indicate that absorption by the intragroup (cluster) medium and intergalactic medium is also a contributor to the total column density distributions.
Signatures of Solar Cycle 25 in Subsurface Zonal Flows
Authors: Howe R. , Hill F. , Komm R. , Chaplin W. J. , Elsworth Y. , Davies G. R. , Schou J. , Thompson M. J.
Published: July 2018

The pattern of migrating zonal flow bands associated with the solar cycle, known as the torsional oscillation, has been monitored with continuous global helioseismic observations by the Global Oscillations Network Group (GONG), together with those made by the Michelson Doppler Imager (MDI) on board the Solar and Heliospheric Observatory (SOHO) and its successor, the Helioseismic and Magnetic Imager (HMI) on board the Solar Dynamics Observatory (SDO), since 1995, giving us nearly two full solar cycles of observations. We report that the flows now show traces of the mid-latitude acceleration that is expected to become the main equatorward-moving branch of the zonal flow pattern for Cycle 25. Based on the current position of this branch, we speculate that the onset of widespread activity for Cycle 25 is unlikely to be earlier than the middle of 2019.
Collaboration interprofessionnelle jeune infirmière diplômée-assistante sociale : appels téléphoniques de préparation de la sortie de l’hôpital
Authors: González-Martínez Esther , Bulliard Corinne
Published: July 2018

Introduction : à l’hôpital, la sortie de patients ayant besoin d’une prise en charge à domicile ou en structure d’accueil s’organise en interprofessionnalité, notamment par des appels téléphoniques entre infirmières et assistantes sociales. Contexte : la collaboration infirmière-assistante sociale lors de la préparation de la sortie est traversée par des tensions susceptibles de s’accentuer lors d’appels avec de jeunes infirmières diplômées. Méthode : étude sociologique dans un hôpital de soins aigus en Suisse francophone, basée sur l’analyse de conversations téléphoniques jeune infirmière diplômée-assistante sociale, ainsi que sur des observations, des entretiens et du recueil de documentation. Résultats : la préparation de la sortie est traversée par des tensions en rapport avec la temporalité de la préparation et la prise en charge demandée. Les appels téléphoniques sont des espaces d’apprentissage pour la jeune infirmière au sujet de la manière de présenter les cas, les procédures à suivre et les logiques des acteurs concernés. Discussion : l’étude confirme la nécessité de préparer les jeunes infirmières à la collaboration avec les assistantes sociales au sujet de la préparation des sorties, à l’école ainsi que sur les lieux de travail. Conclusion : des recherches documentant des pratiques réelles de travail apportent des clés pour les perfectionner.
Les obstacles et les facilitateurs à l’utilisation de l’évaluation du risque de violence auprès des personnes ayant des troubles mentaux : perceptions du personnel soignant
Authors: Souli Intissar , Vandyk Amanda , Versailles Dania , Marcoux Isabelle , Salvador Ann , Peterson Wendy E. , Hu Jiale , Stacey Dawn
Published: July 2018

L’évaluation quotidienne du risque de violence a été définie comme étant une intervention efficace pour la gestion de la violence dans les services de santé mentale. But de la recherche : évaluer l’utilisation d’un outil d’évaluation du risque de violence par le personnel soignant dans une unité de santé mentale ainsi que les facilitateurs et des obstacles à l’utilisation de ce dernier. Méthodes  : une étude descriptive s’inspirant de l’approche de Dillman et guidée par le modèle de transfert des connaissances à la pratique a été réalisée. Résultats  : vingt-six professionnels de santé ont répondu au questionnaire ; 62 % ont affirmé qu’ils avaient déjà utilisé l’outil d’évaluation disponible dans leur unité, mais non de façon quotidienne. Des obstacles liés au manque de connaissances de l’outil, au manque de ressources et de temps, ainsi qu’aux attitudes négatives envers les patients ont été décelés. Quarante-deux pour cent des participants ont exprimé le désir d’avoir une formation sur l’évaluation du risque de violence. Conclusion : malgré la forte exposition à la violence, les professionnels de la santé n’effectuaient pas l’évaluation quotidienne de risque. L’identification des barrières et des facilitateurs assure une direction pour les interventions nécessaires pour accroître l’utilisation quotidienne des outils d’évaluation des risques.
Exploration des facteurs qui influencent la pratique des infirmières auprès des familles vivant un deuil périnatal
Authors: Beaudoin Marie-Andrée , Ouellet Nicole
Published: July 2018

Introduction : le deuil périnatal est un phénomène complexe aux multiples facettes et constitue un défi de taille pour les infirmières. Il semble y avoir autant de façon de vivre un deuil que de parents et les infirmières doivent s’y adapter afin d’accompagner adéquatement les parents endeuillés. Objectif : explorer les facteurs qui influencent la pratique infirmière auprès des familles endeuillées dans un centre secondaire de soins en obstétrique de la région de Québec. Méthode : un devis qualitatif de type constructiviste de 4 ème génération de Guba et Lincoln (1) a été utilisé. Dix infirmières ont participé à des entrevues semi-structurées. Une validation des données a été réalisée auprès de trois infirmières et deux gynécologues. Les données ont été analysées sous l’angle de la théorie du Caring de Watson. Résultats : une analyse thématique a permis de faire ressortir cinq thèmes, soit la qualité relationnelle entre l’infirmière et la famille, les caractéristiques personnelles de l’infirmière, les sentiments ressentis par celle-ci, l’organisation du travail sur l’unité de soins et le contexte entourant les soins offerts aux familles. Conclusion : à la lumière des résultats, certains aspects de la pratique infirmière pourraient être modifiés afin d’assurer un meilleur accompagnement des familles endeuillées.
La formation en éducation thérapeutique « niveau 1 » des étudiants en soins infirmiers : étude de cas
Authors: Kaci Christine , Crozet Cyril , Gillard-Berthod Claire , Van Rooj Geneviève , Marchand Claire
Published: July 2018

Introduction  : des organismes de formation initiale tels que les Instituts de formation en soins infirmiers (IFSI) forment les étudiants à l’éducation thérapeutique des patients (ETP) telle que proposée en formation continue. Objectifs : 1) Décrire les expériences de deux IFSI qui proposent la formation de niveau 1 validante aux étudiants en soins infirmiers ; 2) Déterminer les conditions favorables au développement de compétences auprès d’un public en formation initiale. Méthode  : dix-neuf entretiens semi-directifs ont été menés auprès de formateurs, d’intervenants extérieurs, d’étudiants en cours de formation et d’infirmiers diplômés. Un questionnaire adressé aux formateurs et intervenants a permis de compléter les informations recueillies. Résultats : tous les intervenants étaient formés à des niveaux différents et avaient une expérience en ETP. La pluriprofessionnalité dans les enseignements était privilégiée. Plusieurs activités pédagogiques étaient proposées pour pallier au manque d’expérience des étudiants et à l’insuffisance de stage : mises en situation, échanges de pratiques, création d’outils, etc. La formation était évaluée en terme de satisfaction et d’acquisition. Discussion  : les formations étudiées suivent en grande partie les critères de qualité décrits dans la littérature. Conclusion : ce type de formation pourrait être reproduit auprès d’autres étudiants en formation initiale, voire en interprofessionnalité. Les effets à distance de cette formation doivent être évalués.
Sternberg-Wagner thinking styles: a research tool in social science didactics
Authors: Martínez Romera Daniel David
Published: July 2018

Due to its nature, the teaching of social sciences and the way of thinking of teachers and students maintain a complex, if not delicate relationship. Personal viewpoints and affinities on issues like gender, how things must be done or arranged in class could have a strong influence on the development of a subject. To understand this in a given context, we propose Sternberg-Wagner test analysis and data mining as class tool to identify student behavior patterns and its influence on selected variables (scores, gender, choice of small group for class tasks). As the study shows, significant differences have been detected between sexes as to the form they prefer to do a task, and the way they conceive it. Knowing this can help to better class planning, insofar identifies strengths and weaknesses that otherwise might not have been detected.
Identidad y transgresión en “Alienación” de Julio Ramón Ribeyro
Authors: Córdova Ruiz Gladys
Published: July 2018

El presente artículo aborda el tema de la identidad y la transgresión en el cuento “Alienación” de Julio Ramón Ribeyro. A través de un análisis multidisciplinario, estudiamos las circunstancias en las que se producen los actos de transgresión, así como su repercusión en los personajes ; todo ello planteado en torno a un problema identitario donde se destaca el rol desempeñado por la sociedad.
Transculturación y transexualidad : arte y cultura queer. Latinos por el mundo
Authors: Zapata Mónica
Published: July 2018

Esta contribución se propone presentar los trabajos de cuatro artistas plásticos latinoamericanos, que, tras haber (tras)pasado las fronteras de sus respectivos países, se han instalado afuera, sobre todo en los Estados Unidos, y desde allí militan por sus convicciones tanto políticas como en materia de género. Sus obras son contemporáneas de las crónicas de Pedro Lemebel y de los manifiestos de McOndo y del Crack, por lo que sus experiencias pueden equipararse con la ruptura de los paradigmas establecidos por el Boom y con las vivencias de los escritores exiliados y marcados por los estigmas de realismo mágico y los estereotipos que éste vehiculó acerca de la “identidad latinoamericana”. Algunos no están lejos de la publicidad y la historieta, otros son resueltamente camp.Cette contribution se propose de présenter les réalisations de quatre artistes latino-américains qui, ayant (trans)passé les frontières de leurs pays respectifs, se sont installés ailleurs, aux États-Unis en particulier et qui, depuis là où ils sont, militent pour leur convictions politiques et de genre. Leurs œuvres sont contemporaines des chroniques de Pedro Lemebel et des manifestes du Crack et McOndo. Leurs expériences, dès lors, marquent une rupture par rapport aux paradigmes du Boom et témoignent du vécu des artistes en exil, stigmatisés par les stéréotypes que le Réalisme magique a largement diffusés au sujet de l’identité latino-américaine. Certains sont très proches de l’esthétique de la publicité et du comic, d’autres sont résolument camp.
Transformation et transmission de la mémoire dans Crónicas del inxilio de Silvio Galizzi et Esteban Tolj
Authors: Álvarez Izquierdo Marta
Published: July 2018

Crónicas del inxilio de Silvio Galizzi et Esteban Tolj est un roman graphique dans lequel nous voyons un jeune évoluer dans un environnement hostile, celui de la dictature uruguayenne, entre 1973 et 1985. Le propos de ce travail est d’étudier comment, à travers les diapositifs narratifs propres au roman graphique, le narrateur raconte, longtemps après, son expérience pendant la dictature uruguayenne. Il s’agit d’un témoignage personnel, raconté depuis l’intérieur, mais qui a aussi une valeur de témoignage collectif puisque Crónicas del inxilio transmet une partie de la mémoire collective uruguayenne.
La Seconde Venue du Christ mise en vers : une amplification révélatrice
Authors: Nikou Christos
Published: July 2018

Aux environs de 1500, un auteur crétois composa une œuvre poétique de 396 vers rimés, intitulée La Seconde Venue du Christ mise en vers, réécriture de l’épisode du Jugement dernier relaté au chapitre 20 de l’Apocalypse. La période que nous examinons, connue sous le nom de « Renaissance », ne coïncide pas avec la Renaissance européenne. Après avoir resitué ce texte dans l’histoire littéraire et restitué le contexte qui entoure la chute de Byzance, nous nous intéresserons à deux périodes charnières dans la construction de l’identité littéraire hellénique. Après quoi nous présenterons ce long poème et expliquerons la valeur de l’amplification, jetant des passerelles herméneutiques entre les livres bibliques et ceux, apocryphes, qui se trouvent à la base de cette réécriture et qui convergent vers l’accomplissement des Écritures.
Water Quality Mapping of Yamuna River Stretch Passing Through Delhi State Using High Resolution Geoeye-2 Imagery
Authors: Said Saif , Hussain Athar , Sharma Garima
Published: July 2018

The present article utilizes high resolution Geoeye 2 imagery for mapping and monitoring pollution concentrations of 22 km stretch of river Yamuna passing through Delhi state, by developing regression models between water quality parameters (WQP's) and the corresponding spectral reflectance values. Water samples collected from the sampling locations were analysed for 20 WQP's and grouped into four classes namely; (WQP)organic, (WQP)inorganic, (WQP)anion and (WQP)cation. Several spectral band combinations as well as single bands were probed for performing multiple linear regression (MLR) analysis with the four WQP classes. Results reveal relatively strong positive correlations for band combination viz. [mean RGB × √B/R] with all four WQP classes yielding high R2 value (∼0.85) and RMSE (∼1.03) amongst other selected band combinations. Spatial distribution maps were generated that substantiates to the actual in-situ pollution concentration levels thereby evidences the potential of high resolution Geoeye-2 imagery for monitoring and mapping pollution concentrations in the water bodies.
Expertise in Professional Overwatch Play
Authors: Fanfarelli Joey R.
Published: July 2018

eSports is a rapidly growing phenomenon in competitive gaming. Expertise is an interesting topic to study in relation to eSports, as eSports athletes are considered among the most highly-skilled players of their particular games. Examining expertise not only advances the understanding of what skills compose professional play but enables a deeper study of learning in games; before learning processes are studied, it is important to detail what learning these processes should produce. This study examines expertise through the application of thematic analysis to a series of interviews with professional players of the eSports game, Overwatch. The goal of this study is to identify which skills are perceived to be important to professional-level play by professional players. Two overarching themes were identified, game sense and mechanics. A number of sub-themes were identified as important, including survival, anticipation / prediction, communication, thoughtfulness, aim, ability usage, movement and positioning, and team-based mechanical synergies.
Distributed Cognition and Temporal Knowledge in League of Legends
Authors: Reitman Jason Ginsberg
Published: July 2018

Elite video game competition provides a setting for studying how digitally connected teams handle massive amounts of information that no individual could manage on their own. This article discusses observations of the University of California, Irvine's scholarship League of Legends teams' practices and competitions from fall 2016 through spring 2017. The observations explore the nature of distributed cognition of time and temporal information in a high-pressure, competitive environment. The capacity and strategies of these teams to maintain high levels of coordination, while sitting at desktops for hours at a time, can provide insight into how other kinds of teams might learn to collaborate skillfully in networked settings.
The Adoption of Massive Open Online Courses
Authors: Abu-Shanab Emad A. , Musleh Sajida
Published: July 2018

This article explores the challenges and benefits of using Massive Open Online Courses (MOOCs). It also tried to understand the issues that would influence students' perceptions regarding MOOCs. The Study utilized the Theory of Reasoned Actions (TRA) to understand the factors influencing respondents' adoption of such environment. An empirical research was conducted using a survey to probe subjects” opinions. Results significantly supported the TRA and predicted the intention to use MOOCs. Perceived usefulness and social influence were significant predictors of MOOCs adoption, but ease of use failed to predict the intentions to use MOOCs. Challenges related to infrastructure, control and assessment were important to sample. Subjects indicated that time and place convenience are important contributions of MOOCs. The adoption of MOOCs would increase the opportunities of benefiting people who are busy, disadvantaged, and geographically remote. It reduces the cost for educational institutions, and attracts more people to acquire degrees and training.
The Impact of Collaborative Learning on Web Quest Strategy Used in Learning Educational Psychology
Authors: Abu Warda Mona Hamid
Published: July 2018

This article is aimed to investigating the influence of a web quest strategy on achievement, and whether collaborative learning can maximize the effectiveness of a web quest used as a medium in teaching and learning educational psychology among the female students at Al Majmaa University in Saudi Arabia. Quantitative and qualitative approaches were used in this strategy to investigate the effectiveness of using web quest as a medium of teaching and collaborative learning in Educational Psychology. The questionnaire used was an adaption from the study of Dodge. Each item in the questionnaire was based on a Likert scale which is scores of 1,2,3,4 and 5. While, for the quantitative study, a total of 33 students participated in the interview in order to identify the perception towards collaborative learning and web quest use. Study individuals consisted of 65 female students enrolled in the faculty of education at Al Majmaa University in Saudi Arabia, in the academic year 2014-2015. These women were distributed into two groups; the first group was the experimental group consisting of 33 students who studied using a web quest strategy and the other group was the control, consisting of 32 students who were taught using the conventional method. The results indicate that collaborative learning did not show positive influence, web quest used alone still shows improvement on students' learning outcomes.