bluuebunny/crossref_metadata_2025 huggingface dataset:
On the Development of Learning Control for Robotic Manipulators
Authors: Zhang Dan , Wei Bin
Published: September 2017

Learning control for robotic manipulators has been developed over the past decade and to the best of the authors’ knowledge, it is still in its infant development stage; the authors believe that it will become one of the most promising directions in the control area in robotic manipulators. Learning control in robotic manipulators is mainly used to address the issue that the friction at the joints of robotic mechanisms and other uncertainties may exist in the dynamic models, which are very complex and may even be impossible to model mathematically. In this paper, the authors review and discuss the learning control in robotic manipulators and some issues in learning control for robotic manipulators are also illustrated. This review is able to give a general guideline for future research in learning control for robotic manipulators.
Seasonal and Spatial Characteristics of Urban Heat Islands (UHIs) in Northern West Siberian Cities
Authors: Miles Victoria , Esau Igor
Published: September 2017

Anthropogenic heat and modified landscapes raise air and surface temperatures in urbanized areas around the globe. This phenomenon is widely known as an urban heat island (UHI). Previous UHI studies, and specifically those based on remote sensing data, have not included cities north of 60°N. A few in situ studies have indicated that even relatively small cities in high latitudes may exhibit significantly amplified UHIs. The UHI characteristics and factors controlling its intensity in high latitudes remain largely unknown. This study attempts to close this knowledge gap for 28 cities in northern West Siberia (NWS). NWS cities are convenient for urban intercomparison studies as they have relatively similar cold continental climates, and flat, rather homogeneous landscapes. We investigated the UHI in NWS cities using the moderate-resolution imaging spectroradiometer (MODIS) MOD 11A2 land surface temperature (LST) product in 8-day composites. The analysis reveals that all 28 NWS cities exhibit a persistent UHI in summer and winter. The LST analysis found differences in summer and winter regarding the UHI effect, and supports the hypothesis of seasonal differences in the causes of UHI formation. Correlation analysis found the strongest relationships between the UHI and population (log P). Regression models using log P alone could explain 65–67% of the variability of UHIs in the region. Additional explanatory power—at least in summer—is provided by the surrounding background temperatures, which themselves are strongly correlated with latitude. The performed regression analysis thus confirms the important role of the surrounding temperature in explaining spatial–temporal variation of UHI intensity. These findings suggest a climatological basis for these phenomena and, given the importance of climatic warming, an aspect that deserves future study.
Polarimetric ALOS PALSAR Time Series in Mapping Biomass of Boreal Forests
Authors: Antropov Oleg , Rauste Yrjö , Häme Tuomas , Praks Jaan
Published: September 2017

Here, we examined multitemporal behavior of fully polarimetric SAR (PolSAR) parameters at L-band in relation to the stem volume of boreal forests. The PolSAR parameters were evaluated in terms of their temporal consistency, inter-dependence and suitability for forest stem volume estimation across several seasonal conditions (frozen, thaw and unfrozen). The satellite SAR data were represented by a time series of PolSAR images acquired during several seasons in the years 2006 to 2009 by the ALOS PALSAR sensor. The study area was in central Finland, and represented a managed area in typical boreal mixed forest land. Utility of different PolSAR parameters, their temporal stability and cross-correlations were studied along with reference stand-level stem volume data from forest inventory. Further, two polarimetric parameters, cross-polarization backscatter and co-polarization coherence, were chosen for further investigation and stem volume retrieval. A relationship between forest stem volume and PolSAR parameters was established using the kNN regression approach. Ways of optimally combining PolSAR images were evaluated as well. For a single scene, best results were observed with polarimetric coherence (RMSE ≈ 38.8 m3/ha) for scene acquired in frozen conditions. An RMSE of 40.8 m3/ha (42.9%, R2 = 0.66) was achieved for cross-polarization backscatter in the best case. Cross-polarization backscatter was a better predictor than polarimetric coherence for few summer scenes. Multitemporal aggregation of selected PolSAR scenes improved estimates for both studied PolSAR parameters. Stronger improvement was observed for coherence with RMSE down to 34 m3/ha (35.8%, R2 = 0.77) compared to 38.8–51.6 m3/ha (40.8–54.3%) from separate scenes. Finally, the accuracy statistics reached RMSE of 32.2 m3/ha (34%, R2 = 0.79) when multitemporal HHVV coherence was combined with multitemporal HV-backscatter.
Global Surface Mass Variations from Continuous GPS Observations and Satellite Altimetry Data
Authors: Zhang Xinggang , Jin Shuanggen , Lu Xiaochun
Published: September 2017

The Gravity Recovery and Climate Experiment (GRACE) mission is able to observe the global large-scale mass and water cycle for the first time with unprecedented spatial and temporal resolution. However, no other time-varying gravity fields validate GRACE. Furthermore, the C20 of GRACE is poor, and no GRACE data are available before 2002 and there will likely be a gap between the GRACE and GRACE-FOLLOW-ON mission. To compensate for GRACE’s shortcomings, in this paper, we provide an alternative way to invert Earth’s time-varying gravity field, using a priori degree variance as a constraint on amplitudes of Stoke’s coefficients up to degree and order 60, by combining continuous GPS coordinate time series and satellite altimetry (SA) mean sea level anomaly data from January 2003 to December 2012. Analysis results show that our estimated zonal low-degree gravity coefficients agree well with those of GRACE, and large-scale mass distributions are also investigated and assessed. It was clear that our method effectively detected global large-scale mass changes, which is consistent with GRACE observations and the GLDAS model, revealing the minimums of annual water cycle in the Amazon in September and October. The global mean mass uncertainty of our solution is about two times larger than that of GRACE after applying a Gaussian spatial filter with a half wavelength at 500 km. The sensitivity analysis further shows that ground GPS observations dominate the lower-degree coefficients but fail to contribute to the higher-degree coefficients, while SA plays a complementary role at higher-degree coefficients. Consequently, a comparison in both the spherical harmonic and geographic domain confirms our global inversion for the time-varying gravity field from GPS and Satellite Altimetry.
Doping Ag in ZnO Nanorods to Improve the Performance of Related Enzymatic Glucose Sensors
Authors: Zhou Fan , Jing Weixuan , Liu Pengcheng , Han Dejun , Jiang Zhuangde , Wei Zhengying
Published: September 2017

In this paper, the performance of a zinc oxide (ZnO) nanorod-based enzymatic glucose sensor was enhanced with silver (Ag)-doped ZnO (ZnO-Ag) nanorods. The effect of the doped Ag on the surface morphologies, wettability, and electron transfer capability of the ZnO-Ag nanorods, as well as the catalytic character of glucose oxidase (GOx) and the performance of the glucose sensor was investigated. The results indicate that the doped Ag slightly weakens the surface roughness and hydrophilicity of the ZnO-Ag nanorods, but remarkably increases their electron transfer ability and enhances the catalytic character of GOx. Consequently, the combined effects of the above influencing factors lead to a notable improvement of the performance of the glucose sensor, that is, the sensitivity increases and the detection limit decreases. The optimal amount of the doped Ag is determined to be 2 mM, and the corresponding glucose sensor exhibits a sensitivity of 3.85 μA/(mM·cm2), detection limit of 1.5 μM, linear range of 1.5 × 10−3–6.5 mM, and Michaelis-Menten constant of 3.87 mM. Moreover, the glucose sensor shows excellent selectivity to urea, ascorbic acid, and uric acid, in addition to displaying good storage stability. These results demonstrate that ZnO-Ag nanorods are promising matrix materials for the construction of other enzymatic biosensors.
Smart Bandwidth Assignation in an Underlay Cellular Network for Internet of Vehicles
Authors: De la Iglesia Idoia , Hernandez-Jayo Unai , Osaba Eneko , Carballedo Roberto
Published: September 2017

The evolution of the IoT (Internet of Things) paradigm applied to new scenarios as VANETs (Vehicular Ad Hoc Networks) has gained momentum in recent years. Both academia and industry have triggered advanced studies in the IoV (Internet of Vehicles), which is understood as an ecosystem where different types of users (vehicles, elements of the infrastructure, pedestrians) are connected. How to efficiently share the available radio resources among the different types of eligible users is one of the important issues to be addressed. This paper briefly analyzes various concepts presented hitherto in the literature and it proposes an enhanced algorithm for ensuring a robust co-existence of the aforementioned system users. Therefore, this paper introduces an underlay RRM (Radio Resource Management) methodology which is capable of (1) improving cellular spectral efficiency while making a minimal impact on cellular communications and (2) ensuring the different QoS (Quality of Service) requirements of ITS (Intelligent Transportation Systems) applications. Simulation results, where we compare the proposed algorithm to the other two RRM, show the promising spectral efficiency performance of the proposed RRM methodology.
Analyzing Sensor-Based Time Series Data to Track Changes in Physical Activity during Inpatient Rehabilitation
Authors: Sprint Gina , Cook Diane , Weeks Douglas , Dahmen Jordana , La Fleur Alyssa
Published: September 2017

Time series data collected from sensors can be analyzed to monitor changes in physical activity as an individual makes a substantial lifestyle change, such as recovering from an injury or illness. In an inpatient rehabilitation setting, approaches to detect and explain changes in longitudinal physical activity data collected from wearable sensors can provide value as a monitoring, research, and motivating tool. We adapt and expand our Physical Activity Change Detection (PACD) approach to analyze changes in patient activity in such a setting. We use Fitbit Charge Heart Rate devices with two separate populations to continuously record data to evaluate PACD, nine participants in a hospitalized inpatient rehabilitation group and eight in a healthy control group. We apply PACD to minute-by-minute Fitbit data to quantify changes within and between the groups. The inpatient rehabilitation group exhibited greater variability in change throughout inpatient rehabilitation for both step count and heart rate, with the greatest change occurring at the end of the inpatient hospital stay, which exceeded day-to-day changes of the control group. Our additions to PACD support effective change analysis of wearable sensor data collected in an inpatient rehabilitation setting and provide insight to patients, clinicians, and researchers.
The Relationship between Actual Fundamental Motor Skill Proficiency, Perceived Motor Skill Confidence and Competence, and Physical Activity in 8–12-Year-Old Irish Female Youth
Authors: Farmer Orlagh , Belton Sarahjane , O’Brien Wesley
Published: September 2017

This study examines the relationship between actual fundamental motor skill (FMS) proficiency, perceived motor confidence and competence, and physical activity (PA) among female children (n= 160; mean age = 10.69 ± 1.40 years). The Test of Gross Motor Development-2nd Edition (TGMD-2) was used to assess seven FMSs (locomotor, object-control, and stability). Motor confidence and competence were assessed using a valid skill-specific scale, and a modified version of the Self-Perception Profile for Children. PA levels were assessed using self-report (PA Questionnaire for Older Children (PAQ-C)) and classified as low, moderate, and high active. One-way and two-way ANOVAs (post-hoc honest significant difference (HSD)) and correlation coefficients were used to analyse the data. Findings indicate that the majority of youth (71.8%) were not meeting the minimum 60 min of daily PA recommended for health, and that 98.1% did not achieve the FMS proficiency expected for their age. While there were high levels of perceived physical self-confidence (PSC) reported within FMS skill-specific tasks, there was no significant correlation observed between actual FMS proficiency and perceived PSC among the cohort. Results show that low, moderately, and highly active female participants differ significantly in terms of their overall FMS (p = 0.03) and locomotor (LOC) control scores (p = 0.03). Results from a two-way between-groups analysis of variance also revealed no statistically significant interaction effect between PA grouping and physical performance self-concept (PPSC) on overall FMS proficiency levels. Results of a multiple linear regression indicate that perceived PSC is a significant predictor (beta = 0.183) of participants’ overall PA levels. Data show a need for targeting low levels of PA, and low FMS proficiency in female youth, and for developing interventions aiming to enhance perceived PSC levels.
Evaluation of Integrated Air Pollution and Climate Change Policies: Case Study in the Thermal Power Sector in Chongqing City, China
Authors: Zhou Qian , Yabar Helmut , Mizunoya Takeshi , Higano Yoshiro
Published: September 2017

The cost of environmental degradation has already had a dramatic impact on the Chinese economy. In order to curb these trends, the government of China has introduced stricter regulations. With this in mind, it is important to quantify the potential co-benefits of introducing air pollution and climate change mitigation policies. This study proposes relevant scenarios ranging from the current trends (baseline) to the introduction of different policies in the thermal power sector, including different carbon tax rates, technology innovation promotion, and technology cost reduction methods. We aim to comparatively evaluate the impact of the proposed policies within the thermal sector and within the entire socio-economic system. To this end, we used a dynamic input–output (I-O) model, into which high-efficiency technologies were incorporated as new thermal power industries in order to estimate policy impact during the time period 2010–2025. The results of this study demonstrated that the introduction of one or more of the following policies: carbon taxes, subsidies, technology innovation, and technology cost reduction, has no notable impact on the environment or the economy without the implementation of environment regulations. In contrast, the strong support of a government subsidy coupled with strict environmental regulations will promote technological innovation, for example through the natural gas combined cycle (NGCC) and the integrated coal gasification combined cycle (IGCC). Our study also showed that the reduction of air pollution and greenhouse gas emissions as well as energy consumption would curb economic development to a certain extent. Taking this into consideration, innovation must also be promoted in other economic sectors. This research provides a strong reference for policy-makers to identify effective polices under different types of environmental regulations.
Decomposition Analysis of the Factors that Influence Energy Related Air Pollutant Emission Changes in China Using the SDA Method
Authors: Xu Shichun , Zhang Wenwen , Li Qinbin , Zhao Bin , Wang Shuxiao , Long Ruyin
Published: September 2017

We decompose factors affecting China’s energy-related air pollutant (NOx, PM2.5, and SO2) emission changes into different effects using structural decomposition analysis (SDA). We find that, from 2005 to 2012, investment increased NOx, PM2.5, and SO2 emissions by 14.04, 7.82 and 15.59 Mt respectively, and consumption increased these emissions by 11.09, 7.98, and 12.09 Mt respectively. Export and import slightly increased the emissions on the whole, but the rate of the increase has slowed down, possibly reflecting the shift in China’s foreign trade structure. Energy intensity largely reduced NOx, PM2.5, and SO2 emissions by 12.49, 14.33 and 23.06 Mt respectively, followed by emission efficiency that reduces these emissions by 4.57, 9.08, and 17.25 Mt respectively. Input-output efficiency slightly reduces the emissions. At sectoral and sub-sectoral levels, consumption is a great driving factor in agriculture and commerce, whereas investment is a great driving factor in transport, construction, and some industrial subsectors such as iron and steel, nonferrous metals, building materials, coking, and power and heating supply. Energy intensity increases emissions in transport, chemical products and manufacturing, but decreases emissions in all other sectors and subsectors. Some policies arising from our study results are discussed.
Lymphatic Filariasis Increases Tissue Compressibility and Extracellular Fluid in Lower Limbs of Asymptomatic Young People in Central Myanmar
Authors: Douglass Janet , Graves Patricia , Lindsay Daniel , Becker Luke , Roineau Maureen , Masson Jesse , Aye Ni , Win San , Wai Tint , Win Yi , Gordon Susan
Published: September 2017

When normal lymphatic function is hampered, imperceptible subcutaneous edema can develop and progress to overt lymphedema. Low-cost reliable devices for objective assessment of lymphedema are well accepted in clinical practice and research on breast-cancer related lymphedema but are untested in populations with lymphatic filariasis (LF). This is a cross-sectional analysis of baseline data in a longitudinal study on asymptomatic, LF antigen-positive and -negative young people in Myanmar. Rapid field screening was used to identify antigen-positive cases and a group of antigen-negative controls of similar age and gender were invited to continue in the study. Tissue compressibility was assessed with three tissue tonometers, and free fluids were assessed using bio-impedance spectroscopy (BIS). Infection status was confirmed by Og4C3 antigen assay. At baseline (n = 98), antigen-positive cases had clinically relevant increases in tissue compressibility at the calf using a digital Indurometer (11.1%, p = 0.021), and in whole-leg free fluid using BIS (9.2%, p = 0.053). Regression analysis for moderating factors (age, gender, hydration) reinforced the between-infection group differences. Results demonstrate that sub-clinical changes associated with infection can be detected in asymptomatic cases. Further exploration of these low-cost devices in clinical and research settings on filariasis-related lymphedema are warranted.
Spatial Analysis of High-Resolution Radar Rainfall and Citizen-Reported Flash Flood Data in Ultra-Urban New York City
Authors: Smith Brianne , Rodriguez Stephanie
Published: September 2017

New York City (NYC) is an ultra-urban region, with over 50% impervious cover and buried stream channels. Traditional flood studies rely on the presence of stream gages to detect flood stage and discharge, but these methods cannot be used in ultra-urban areas. Here we create a high-resolution radar rainfall dataset for NYC and utilize citizen and expert reports of flooding throughout the city to study flash flooding in NYC. Results indicate that interactions between the urban area and land–sea boundary have an important impact on the spatial variability of both heavy rainfall and flooding, sometimes in contrast to results obtained for other cities. Top days of daily and hourly rainfall exhibit a rainfall maximum over the city center and an extended region of higher rainfall downwind of the city. The mechanism for flooding appears to vary across the city, with high groundwater tables influencing more coastal areas and high rain rates or large rain volumes influencing more inland areas. There is also a strong relationship between sewer type and flood frequency, with fewer floods observed in combined sewer areas. Flooding is driven by maximum one-hour to one-day rainfall, which is often substantially less rain than observed for the city-wide daily maximum.
The Small Magellanic Cloud Investigation of Dust and Gas Evolution (SMIDGE): The Dust Extinction Curve from Red Clump Stars
Authors: Merica-Jones Petia Yanchulova , Sandstrom Karin M. , Johnson L. Clifton , Dalcanton Julianne , Dolphin Andrew E. , Gordon Karl , Roman-Duval Julia , Weisz Daniel R. , Williams Benjamin F.
Published: September 2017

We use Hubble Space Telescope (HST) observations of red clump stars taken as part of the Small Magellanic Cloud Investigation of Dust and Gas Evolution (SMIDGE) program to measure the average dust extinction curve in a ∼200 pc × 100 pc region in the southwest bar of the Small Magellanic Cloud (SMC). The rich information provided by our eight-band ultraviolet through near-infrared photometry allows us to model the color–magnitude diagram of the red clump accounting for the extinction curve shape, a log-normal distribution of A

V
, and the depth of the stellar distribution along the line of sight. We measure an extinction curve with

. This measurement is significantly larger than the equivalent values of published Milky Way (MW) R

V
 = 3.1 (

) and SMC Bar R

V
 = 2.74 (

) extinction curves. Similar extinction curve offsets in the Large Magellanic Cloud (LMC) have been interpreted as the effect of large dust grains. We demonstrate that the line-of-sight depth of the SMC (and LMC) introduces an apparent “gray” contribution to the extinction curve inferred from the morphology of the red clump. We show that no gray dust component is needed to explain extinction curve measurements when FWHM depth of 10 ± 2 kpc in the stellar distribution of the SMC (5 ± 1 kpc for the LMC) is considered, which agrees with recent studies of Magellanic Cloud stellar structure. The results of our work demonstrate the power of broadband HST imaging for simultaneously constraining dust and galactic structure outside the MW.
Constraints on Axion-like Particles from X-Ray Observations of NGC1275
Authors: Berg Marcus , Conlon Joseph P. , Day Francesca , Jennings Nicholas , Krippendorf Sven , Powell Andrew J. , Rummel Markus
Published: September 2017

Axion-like particles (ALPs) can induce localized oscillatory modulations in the spectra of photon sources passing through astrophysical magnetic fields. Ultra-deep Chandra observations of the Perseus cluster contain over

counts from the active galactic nucleus (AGN) of the central cluster galaxy NGC1275 and represent a data set of extraordinary quality for ALP searches. We use this data set to search for X-ray spectral irregularities from the AGN. The absence of irregularities at the

level allows us to place leading constraints on the ALP-photon mixing parameter

for

, depending on assumptions on the magnetic field realization along the line of sight.
Three Statistically Validated K2 Transiting Warm Jupiter Exoplanets Confirmed as Low-mass Stars
Authors: Shporer Avi , Zhou George , Vanderburg Andrew , Fulton Benjamin J. , Isaacson Howard , Bieryla Allyson , Torres Guillermo , Morton Timothy D. , Bento Joao , Berlind Perry , Calkins Michael L. , Esquerdo Gilbert A. , Howard Andrew W. , Latham David W.
Published: September 2017

We have identified three K2 transiting star–planet systems, K2-51 (EPIC 202900527), K2-67 (EPIC 206155547), and K2-76 (EPIC 206432863), as stellar binaries with low-mass stellar secondaries. The three systems were statistically validated as transiting planets, and through measuring their orbits by radial velocity (RV) monitoring we have derived the companion masses to be

(EPIC 202900527 B),

(EPIC 206155547 B), and 0.0942 ± 0.0019

(EPIC 206432863 B). Therefore, they are not planets but small stars, part of the small sample of low-mass stars with measured radius and mass. The three systems are at an orbital period range of 12–24 days, and the secondaries have a radius within 0.9–1.9

, not inconsistent with the properties of warm Jupiter planets. These systems illustrate some of the existing challenges in the statistical validation approach. We point out a few possible origins for the initial misclassification of these objects, including poor characterization of the host star, the difficulty in detecting a secondary eclipse in systems on an eccentric orbit, and the difficulty in distinguishing between the smallest stars and gas giant planets as the two populations have indistinguishable radius distributions. Our work emphasizes the need for obtaining medium-precision RV measurements to distinguish between companions that are small stars, brown dwarfs, and gas giant planets.
Energy Release in the Solar Atmosphere from a Stream of Infalling Prominence Debris
Authors: Inglis A. R. , Gilbert H. R. , Ofman L.
Published: September 2017

Recent high-resolution and high-cadence extreme-ultraviolet (EUV) imaging has revealed a new phenomenon, impacting prominence debris, where prominence material from failed or partial eruptions can impact the lower atmosphere, releasing energy. We report a clear example of energy release and EUV brightening due to infalling prominence debris that occurred on 2011 September 7–8. The initial eruption of material was associated with an X1.8-class flare from AR 11283, occurring at 22:30 UT on 2011 September 7. Subsequently, a semicontinuous stream of this material returned to the solar surface with a velocity v > 150 km s−1, impacting a region remote from the original active region between 00:20 and 00:40 UT on 2011 September 8. Using the Solar Dynamics Observatory/Atmospheric Imaging Assembly, the differential emission measure of the plasma was estimated throughout this brightening event. We found that the radiated energy of the impacted plasma was

erg, while the thermal energy peaked at ∼1028 erg. From this we were able to determine the mass content of the debris to be in the range

g. Given typical prominence masses, the likely debris mass is toward the lower end of this range. This clear example of a prominence debris event shows that significant energy release takes place during these events and that such impacts may be used as a novel diagnostic tool for investigating prominence material properties.
The Fate of Close-in Planets: Tidal or Magnetic Migration?
Authors: Strugarek A. , Bolmont E. , Mathis S. , Brun A. S. , Réville V. , Gallet F. , Charbonnel C.
Published: September 2017

Planets in close-in orbits interact magnetically and tidally with their host stars. These interactions lead to a net torque that makes close-in planets migrate inward or outward depending on their orbital distance. We systematically compare the strength of magnetic and tidal torques for typical observed star–planet systems (T-Tauri and hot Jupiter, M-dwarf and Earth-like planet, K star and hot Jupiter) based on state-of-the-art scaling laws. We find that depending on the characteristics of the system, tidal or magnetic effects can dominate. For very close-in planets, we find that both torques can make a planet migrate on a timescale as small as 10–100 thousands of years. Both effects thus have to be taken into account when predicting the evolution of compact systems.
Composer entre la famille et le marché à Madagascar
Authors: Burnod Perrine , Rakotomalala Heriniaina , Andriamanalina Beby Seheno , Di Roberto Hadrien
Published: September 2017

Sur la base d’enquêtes menées dans neuf communes de l’île, cet article analyse le profil des jeunes agriculteurs et leur mode d’accès à la terre. Les jeunes qui accèdent relativement tôt au foncier disposent de superficies moindres que leurs aînés. Ils peinent à fonder leur patrimoine sur l’héritage et ont de plus en plus recours aux marchés fonciers. Composant entre l’héritage familial et le marché, c’est-à-dire la prise en métayage, la location ou l’achat de terre, ils dépendent dans les deux cas de leur famille, le marché étant fortement structuré et régulé par les relations familiales.
De la belle exotique à la belle invasive : perceptions et appréciations de la Perruche à collier (Psittacula krameri) dans la métropole parisienne
Authors: Berthier Alizé , Clergeau Philippe , Raymond Richard
Published: September 2017

Dans un contexte de développement du commerce international des nouveaux animaux de compagnie, les villes constituent des points d’entrée privilégiés pour les introductions d’animaux exotiques. Si beaucoup de travaux démontrent les impacts négatifs de ces introductions, peu se focalisent sur l’appréciation de ces espèces par les habitants des territoires d’accueil. L’arrivée de la Perruche à collier ( Psittacula krameri) dans la métropole parisienne offre la possibilité d’étudier les perceptions et appréciations par les citadins d’une espèce invasive potentielle qui suscite a priori leur sympathie. Nous avons interrogé les critères déterminant ces perceptions et appréciations. Alors que cet oiseau est spontanément apprécié pour son exotisme, un retournement de valeur s’opère à mesure que sa population augmente et qu’il devient commun. Le statut de l’espace où l’habitant interagit avec la Perruche influence également son appréciation, les nuisances étant moins tolérées à proximité des espaces privés.
La Lorraine comme ressource et lieu de production de l’industrie de la Ruhr
Authors: Marx Christian , Joly Hervé
Published: September 2017

L’annexion de la Lorraine allemande après la guerre de 1870 a établi des liens étroits entre les gisements de minerais de fer lorrains et la sidérurgie de la Ruhr à la fin du xix e   siècle. L’article étudie ces liens à travers l’exemple de l’entreprise Gutehoffnungshütte. Le déclenchement de la Première Guerre mondiale a augmenté l’importance de la Lorraine comme ressource stratégique, tout en plaçant la production locale de minerai de fer devant des défis multiples avec la pénurie de main-d’œuvre et les opérations militaires.
La perception de l’ancien ennemi en Lorraine à l’issue des deux guerres mondiales
Authors: Metzger Chantal
Published: September 2017

La Lorraine a été, pendant les deux Guerres mondiales, annexée, occupée et surtout victime d’exactions de la part de l’occupant allemand. Après la victoire en 1918 et la capitulation sans conditions de l’Allemagne le 8 mai 1945, les populations de Lorraine sont restées contrairement aux autres régions de France, en contact avec l’ancien ennemi, leur voisin immédiat. Cet article analyse leurs réactions et l’évolution de leur attitude dans les années qui suivirent la fin des conflits.
Genesis of Psychoanalysis and Feminism /Genèse de Psychanalyse et féminisme
Authors: Mitchell Juliet , Nesci Catherine
Published: September 2017

Juliet Mitchell décrit la genèse de son livre de 1974, Psychanalyse et féminisme . Elle rappelle sa relation avec le mouvement parisien « Psychanalyse et Politique », mais insiste sur le fait qu’elle avait déjà écrit son livre avant de les rencontrer. Elle explique que contrairement à PsychéPo, elle a adopté le travail de Lacan pour entrer dans la vision patriarcale qu’exposaient les théories de Freud. Mitchell dit que sa motivation pour explorer la psychanalyse, c’était sa fascination pour la position anti-freudienne enragée des premières féministes américaines de la fin des années 1960. Elle a découvert que pour saisir quelque chose de l’oppression des femmes, Freud, glosé par Lacan, était bien plus révolutionnaire que les penseurs radicaux plus tardifs. Mitchell explique qu’elle a trouvé dans le travail de Freud ce qu’elle cherchait : une façon de penser la question de l’oppression des femmes.
Enhancing Observers' Learning During Simulations
Authors: Leigh Gwen , Miller Laura B. , Ardoin Katherine B.
Published: September 2017

Health care facilities are charged with the challenging task of establishing and maintaining quality of nursing care. As more health care facilities adopt patient simulation as a strategy for increasing the quality of nursing care, nursing professional development specialists struggle to ensure that all participants have positive learning experiences. Staff members assigned to the role of observer pose a unique challenge because they do not actively participate and may disengage from the learning process. Instructing the observers to lead the debriefing session transforms them into active participants. The traditional method of observers learning vicariously through role modeling can be enhanced by more active involvement during debriefing. Professional role development, greater feelings of achievement, and improved clinical competence will occur with observer-led debriefing. The focus of this article is to discuss an innovative way to capture and hold the attention of those staff members assigned to the role of observer in patient simulation.

J Contin Educ Nurs.
2017;48(10):454–457.
Strategies for Effective Facilitation as a Component of an Evidence-Based Clinical Fellowship Program
Authors: Lizarondo Lucylynn , McArthur Alexa
Published: September 2017

Clinical fellowships are a common means to provide health practitioners with professional development and education, including training for research and evidence-based practice. The Joanna Briggs Institute offers a clinical fellowship program as part of its strategy to promote evidence-based health care. A key aspect of the Joanna Briggs Institute clinical fellowship program is facilitation. This article aims to outline some practical tips for effective facilitation as it is applied in a clinical fellowship program aimed to promote evidence implementation. A set of practical strategies, based on the authors' experiences and which are supported by evidence from the literature, are proposed to maximize the learning experiences of clinicians and provide an opportunity to engage with health service researchers within a supportive and individualized program.

J Contin Educ Nurs.
2017;48(10):458–463.
Long-Term Care Nurse Residency Program: Evaluation of New Nurse Experiences and Lessons Learned
Authors: Salmond Susan W. , Cadmus Edna , Black Katherine Kuren , Bohnarczyk Nancy , Hassler Linda
Published: September 2017

Transitioning to long-term care environments presents a significant challenge for new nurses and their directors of nursing. The complexity of this environment, instability of the workforce, and the lack of support structures frequently affect a new nurse's decision not to apply to long-term care, but to look for positions in acute care hospitals. To address these issues, a long-term care new nurse residency program was developed, implemented, and evaluated in New Jersey through the work of the New Jersey Action Coalition. The purpose of this study was to determine the effects of the residency program on new nurses' confidence, competence, retention, job satisfaction, and perceptions of organizational safety.

J Contin Educ Nurs.
2017;48(10):474–484.
Construction and Application of the BEST Teaching Mode of College English in Big Data
Authors: Peng Bingzhuan
Published: September 2017

The widespread use of the Internet and Internet-based devices allows people to access big data easily. With the emergence of big data, the traditional teacher-centered teaching modes can no longer arouse the learning interest of students and cannot satisfy the needs for their overall improvement. A creative and comprehensive teaching mode based on big data environment for students and teachers (BEST) teaching mode was proposed in this study to enhance the teaching effect of teachers and the learning efficiency of students in big data. The challenges brought by big data were analyzed in this study, and a corresponding BEST teaching mode was proposed based on big data. A case study was conducted, in which the BEST teaching mode was applied to college English teaching. SPSS19.0 was used to analyze the results of the experiment. Results demonstrate that the proposed BEST teaching mode allows students to select suitable materials and methods to study and that the proposed mode fundamentally changes the nature of teaching and learning. Findings reveal the many advantages of this mode for both the College English teaching and college English learning. The proposed novel BEST teaching mode plays a significant role in guiding the revolutionary change in the mode and the means of foreign language teaching reforms in China.
IEBOOK-based Experimental Operation Platform of Computer Basic Course
Authors: Niu Rong , Zhang Zhu
Published: September 2017

With the development of information technology, educators combine the teaching contents of basic computer knowledge with the abundant materials available online, having raised the interestingness and attraction of the teaching practice of computer basic course. This paper aims to design an IEBOOK-based experimental operation platform of computer basic course which can overcome the defects of traditional experimental operation platform of inconvenience and less abundance of contents by combining IEBOOK software and an interactive display technology (including input module, picture processing module, touch screen, image addition module, and output module) of electronic courseware. The results show that the IEBOOK-based experimental operation platform effectively combine classroom teaching and after-class review, Q&A and resources exchange, and largely raise students’ interest in computer basic course learning, self-management sills, and communicative competence via mobile devices such as mobile phone and tablet PC.
Construction of Multimedia Teaching Platform for Ecological Economics Course Based on Information Technology
Authors: Wang Fanglin
Published: September 2017

To solve the problems of dull multimedia teaching mode, untargeted education, and low efficiency of the course of ecological economics, we have applied information technology in multimedia education, and designed a new multimedia education platform. The aforesaid multimedia education platform consists of three modules, i.e. login module, expert module and student module. We tested the effect of the newly-built multimedia education platform based on information technology via teaching experiment, and results demonstrate that this multimedia education platform is helpful for implementing targeted teaching and guidance according to students’ characteristics, to raise students’ learning initiative and ensure teaching efficiency. These findings indicate the new education platform is helpful for providing more vivid teaching contents, stimulating students’ learning initiative, and improving teaching quality.
Innovation Ability Training Mode of Postgraduates in the Mechanical Discipline Based on Simulation Technology
Authors: Li Xueyi , Wan Lirong , Zhang Xin
Published: September 2017

The innovation ability of mechanical discipline graduate students in China is trained mainly through classroom teaching and scientific research. Theoretical knowledge is traditionally passed on to students in class by “spoon-feeding,” which makes the learning process boring. Scientific research combines theoretical knowledge with experiment. However, its experimental condition and experimental equipment requirements are high. The experimental resources in many universities can hardly satisfy the requirements, seriously hindering the cultivation of the innovation ability of postgraduates. Therefore, this study proposes a new approach to enhancing the innovation ability of postgraduates in the mechanical discipline based on simulation technology, describes the positive role of simulation technology in the training process, and takes the wavy lip seal as an example to illustrate the application of simulation technology in enhancing innovation ability in detail. The comparison of the traditional and new training modes shows that the innovation ability of postgraduates in the mechanical discipline improves considerably when the new training mode is adopted. Furthermore, the new training mode is recognized by graduate students and enterprises.
A Virtual Reality Teaching System for Graphic Design Course
Authors: Lou Mingying
Published: September 2017

Graphic design is a comprehensive science integrating artistry, innovation and operability. Graphic design is not limited to print media any more, but starts to be combined with multi-dimensional design methods. The traditional dull duck-stuffing teaching method is not good for stimulating students’ enthusiasm for study, creativity and imagination, and cannot meet students’ learning need accordingly. Thus, we intend to combine painting-imitating teaching with virtual reality in the course of graphic design, with an aim to make up the deficiency of traditional teaching mode, stimulate students’ enthusiasm for study and learning motivation, arouse students’ imagination, creativity and sensibility, and improve students’ overall design capability. To check the effect of the combination of painting-imitating teaching and virtual reality in course teaching of graphic design, we carried out a case study of course teaching of graphic design. The results demonstrate that the class for which virtual reality teaching tools was adopted is significantly superior to the class for which the traditional teaching method was adopted in respect of the degree of proficiency of course teaching skills, special imagination, students’ concentration, and consolidation of knowledge after class, especially in respect of students’ concentration and special imagination. These findings indicate the combination of painting-imitating teaching and virtual reality is helpful to stimulate students’ learning initiative, enthusiasm for study, and learning interest, and greatly improve learning effect.
Design of Online Vocal Music Course Based on Azure-PaaS Platform
Authors: Li Zhuo
Published: September 2017

With the development of Web service of internet technology, more and more teaching functions can be achieved through network. The emergence of online courses adapts to the development trend of internet, and has become a new teaching model. We applied a WIFI-based intelligent PPT technology innovatively combined with Azure-PaaS cloud computing technology, and designed a new type of online course in the aspects of overall structure and teaching function (the realization of online course is established from 3 aspects: learning module, communication module and evaluation module) according to the cognitive assimilation theory, and then analyzed the teaching effect of the university online vocal music course based on Azure-PaaS platform. Results demonstrate that 47.7% of students used this online course platform frequently and 27.3% of students logged in this platform for learning very frequently. These findings indicate the teaching effect of internet-based vocal music course can be improved, and can provide reference for the design of vocal music web courses in Universities.
Construction of Mobile Teaching Platform for the Ideological and Political Education Course Based on the Multimedia Technology
Authors: Wang Shanshan
Published: September 2017

with the continuous development of mobile communication technology, learners can easily take advantage of the fragmentary time to learn through smartphone and tablet PC due to their portability. We applied the mobile multimedia technology to the multimedia teaching of the ideological and political course, designed a mobile multimedia teaching platform for the ideological and political course, put forward the application of mobile technology to the ideological and political education for the first time. In addition, based on the frame of Ruby on Rails, we used HTML5 technology to enrich the functionality of the education platform, and adopted the online examination technology in the online examination section of the mobile teaching platform in order to help students evaluate their learning better and improve their learning efficiency. The teaching practice test showed that the excellent rate in the experimental group is improved obviously, reaching 10%; the good rate in the experimental group increases by 25% compared with that in the control group, and the number of people at medium and passing stages declines obviously: the medium rate decreases by 30%. These findings indicate the mobile teaching platform for the ideological and political course could improve students' learning scores significantly, which has a broad application prospect.
Kinetic Description of (Cr, Fe)7C3 Carbide Precipitation from Austenite in High-Carbon Fe-Cr-C Ternary Alloys
Authors: Vasyukova E.S. , Okishev K.Yu. , Sozykina A.S. , Karlikov A.M. , Mirzaev D.A.
Published: September 2017

The paper develops a model of precipitation of secondary (Cr, Fe)7C3 carbides from austenite in high-carbon chromium white cast irons of the ternary system Fe–Cr–C. Description of isothermal kinetics is based on traditional approaches to diffusionally controlled growth of particles, and approximation of the shape of isothermal TTT curve by a parabola permitted to apply the Scheil–Steinberg integral for transition to continuous cooling conditions. Model parameters were determined from literature experimental data on the change of Ms temperature after continuous cooling with different rates. Dependences of these parameters on alloy composition were then also defined. Results of the work, combined with the previously proposed model of carbide dissolution in the gamma phase during austenitization, permit to calculate isothermal (TTT) and continuous cooling (CCT) precipitation curves for an arbitrary ternary Fe–Cr–C alloy after given austenitization mode.
Magnetic Wave Technology of Grinding Slime Separation
Authors: Vernigorov Yu.M. , Gasanov B.G. , Baev S.S.
Published: September 2017

It is proved that abrasive-holding conglomerates are effectively destroyed when slime is separated in the non-uniform electromagnetic field, which results in steel chips and abrasive separation. Magnetic wave separation technology mechanism for bearing production grinding slime is described in the article. The techniques for optimal regimes of magnetic field gradient determination and alternating magnetic field induction intervals regulation for the effective separation of magnetic and non-magnetic fractions are proposed. Practical application options for the slime separation products are shown.
Minimizing the Dynamic Loads in Pilger Rolling Mill Forholler
Authors: Chechulin Yu.B. , Popov Yu.A.
Published: September 2017

For the newly proposed pneumohydraulic drive of workpiece return movement it is researched relations, analysis was carried out and recommendations of selecting values of the initial pressure in the pneumatic chamber, ensuring a rational ratio between the periods of acceleration and deceleration were obtained. A mathematical model and program were created for the calculation of the law of motion of the brake rod with floating piston device using the system variable throttling the flow of the working fluid along the movement in the brake chamber. Based on the developed model the numerical analysis is made to assess the impact of the inner surface of the brake axle box on the final rate of the brake piston, as well as the effect of the location and change in the area of additional throttling apertures therein on the trend values of the maximum braking acceleration of moving masses. An algorithm of determining the constants and variables control law of motion, minimizing the maximum values of dynamic loads per cycle movement of the workpiece is obtained. It is shown that the proposed framework of the rod system of the workpiece return movement in the working cage with a floating piston ensures reduce the moving masses and increases the rigidity of the movable rod. The calculated relations for the definition of effort mobile carriage prop, providing gapless its support with mechanism of feed limit, are obtained.