bluuebunny/crossref_metadata_2025 huggingface dataset:
Segment-Based Spatial Analysis for Assessing Road Infrastructure Performance Using Monitoring Observations and Remote Sensing Data
Authors: Song Yongze , Wright Graeme , Wu Peng , Thatcher Dominique , McHugh Tom , Li Qindong , Li Shuk Jin , Wang Xiangyu
Published: October 2018

Road infrastructure is important to the well-being and economic health of all nations. The performance of road pavement infrastructure is sophisticated and affected by numerous factors and varies greatly across different roads. Large scale spatial analysis for assessing road infrastructure performance is increasingly required for road management, therefore multi-source factors, including satellite remotely sensed climate and environmental data, and ground-monitored vehicles observations, are collected as explanatory variables. Different from the traditional point or area based geospatial attributes, the performance of pavement infrastructure is the line segment based spatial data. Thus, a segment-based spatial stratified heterogeneity method is utilized to explore the comprehensive impacts of vehicles, climate, properties of road and socioeconomic conditions on pavement infrastructure performance. Segment-based optimal discretization is applied on discretizing segment-based pavement data, and a segment-based geographical detector is utilized to assess the spatial impacts of variables and their interactions. Results show that the segment-based methods can more reasonably and accurately describe the characteristics of line segment based spatial data and assess the spatial associations. The two major categories of factors associated with pavement damage are the variables of traffic vehicles and heavy vehicles in particular, and climate and environmental conditions. Meanwhile, the interactions between the explanatory variables in these two categories have much more influence than the single explanatory variables, and the interactions can explain more than half of the pavement damage. This study highlights the great potential of remote sensing based large scale spatial analysis of road infrastructures. The approach in this study provides new ideas for spatial analysis for segmented geographical data. The findings indicate that the quantified comprehensive impacts of variables are practical for wise decision-making for road design, construction and maintenance.
The Design and Application of Simplified Insole-Based Prototypes with Plantar Pressure Measurement for Fast Screening of Flat-Foot
Authors: Hsu Wei-Chun , Sugiarto Tommy , Chen Jun-Wen , Lin Yi-Jia
Published: October 2018

This study aimed to find the correlation between conventional Arch Index (AI) measurements and our prototype of a simplified insole-based plantar pressure measurement system and to find out the effective plantar pressure sensor position. Twenty-one subjects participated in this study, which was divided into two groups: 10 subjects with flatfoot and 11 subjects with normal foot. Five force sensitive resistance sensors were used on this prototype using Arduino as the data acquisition device. Two types of trials, namely static and dynamic, were conducted to validate our system against the ink-type AI measurement as a golden standard. The results showed that in the static trial, there was a high linear correlation with the medial arch sensor configuration, while in the dynamic trial, there was a high linear correlation in the medial arch sensor configuration and sensor 5 configuration. This study showed that both static and dynamic tests using the self-developed device could effectively determine most of the flatfoot subjects and suggests that in the future, it can be applied in clinical applications because of its advantages when compared to the expensive-high tech graphic input board and conventional tools, like ink-type based measurements.
An Ontology-Driven Approach for Integrating Intelligence to Manage Human and Ecological Health Risks in the Geospatial Sensor Web
Authors: Meng Xiaoliang , Wang Feng , Xie Yichun , Song Guoqiang , Ma Shifa , Hu Shiyuan , Bai Junming , Yang Yiming
Published: October 2018

Due to the rapid installation of a massive number of fixed and mobile sensors, monitoring machines are intentionally or unintentionally involved in the production of a large amount of geospatial data. Environmental sensors and related software applications are rapidly altering human lifestyles and even impacting ecological and human health. However, there are rarely specific geospatial sensor web (GSW) applications for certain ecological public health questions. In this paper, we propose an ontology-driven approach for integrating intelligence to manage human and ecological health risks in the GSW. We design a Human and Ecological health Risks Ontology (HERO) based on a semantic sensor network ontology template. We also illustrate a web-based prototype, the Human and Ecological Health Risk Management System (HaEHMS), which helps health experts and decision makers to estimate human and ecological health risks. We demonstrate this intelligent system through a case study of automatic prediction of air quality and related health risk.
A Low-Cost Open Hardware System for Collecting Traffic Data Using Wi-Fi Signal Strength
Authors: Gupta Shivam , Hamzin Albert , Degbelo Auriol
Published: October 2018

Road traffic and its impacts affect various aspects of wellbeing with safety, congestion and pollution being of significant concern in cities. Although there have been a large number of works done in the field of traffic data collection, there are several barriers which restrict the collection of traffic data at higher resolution in the cities. Installation and maintenance costs can act as a disincentive to use existing methods (e.g., loop detectors, video analysis) at a large scale and hence limit their deployment to only a few roads of the city. This paper presents an approach for vehicle counting using a low cost, simple and easily installable system. In the proposed system, vehicles (i.e., bicycles, cars, trucks) are counted by means of variations in the WiFi signals. Experiments with the developed hardware in two different scenarios—low traffic (i.e., 400 objects) and heavy traffic roads (i.e., 1000 objects)—demonstrate its ability to detect cars and trucks. The system can be used to provide estimates of vehicle numbers for streets not covered by official traffic monitoring techniques in future smart cities.
Research on Detection and Location of Fluid-Filled Pipeline Leakage Based on Acoustic Emission Technology
Authors: Pan Shengshan , Xu Zhengdan , Li Dongsheng , Lu Dang
Published: October 2018

Because of the inconvenience of installing sensors in a buried pipeline, an acoustic emission sensor is initially proposed for collecting and analyzing leakage signals inside the pipeline. Four operating conditions of a fluid-filled pipeline are established and a support vector machine (SVM) method is used to accurately classify the leakage condition of the pipeline. Wavelet decomposition and empirical mode decomposition (EMD) methods are initially used in denoising these signals to address the problem in which original leakage acoustic emission signals contain too much noise. Signals with more information and energy are then reconstructed. The time-delay estimation method is finally used to accurately locate the leakage source in the pipeline. The results show that by using SVM, wavelet decomposition and EMD methods, leakage detection in a liquid-filled pipe with built-in acoustic emission sensors is effective and accurate and provides a reference value for real-time online monitoring of pipeline operational status with broad application prospects.
Edge and Fog Computing Platform for Data Fusion of Complex Heterogeneous Sensors
Authors: Mujica Gabriel , Rodriguez-Zurrunero Roberto , Wilby Mark Richard , Portilla Jorge , Rodríguez González Ana Belén , Araujo Alvaro , Riesgo Teresa , Vinagre Díaz Juan José
Published: October 2018

The explosion of the Internet of Things has dramatically increased the data load on networks that cannot indefinitely increment their capacity to support these new services. Edge computing is a viable approach to fuse and process data on sensor platforms so that information can be created locally. However, the integration of complex heterogeneous sensors producing a great amount of diverse data opens new challenges to be faced. Rather than generating usable data straight away, complex sensors demand prior calculations to supply meaningful information. In addition, the integration of complex sensors in real applications requires a coordinated development from hardware and software teams that need a common framework to reduce development times. In this work, we present an edge and fog computing platform capable of providing seamless integration of complex sensors, with the implementation of an efficient data fusion strategy. It uses a symbiotic hardware/software design approach based on a novel messaging system running on a modular hardware platform. We have applied this platform to integrate Bluetooth vehicle identifiers and radar counters in a specific mobility use case, which exhibits an effective end-to-end integration using the proposed solution.
A Data Correction Algorithm for Low-Frequency Floating Car Data
Authors: Li Bijun , Guo Yuan , Zhou Jian , Cai Yi
Published: October 2018

The data collected by floating cars is an important source for lane-level map production. Compared with other data sources, this method is a low-cost but challenging way to generate high-accuracy maps. In this paper, we propose a data correction algorithm for low-frequency floating car data. First, we preprocess the trajectory data by an adaptive density optimizing method to remove the noise points with large mistakes. Then, we match the trajectory data with OpenStreetMap (OSM) using an efficient hierarchical map matching algorithm. Lastly, we correct the floating car data by an OSM-based physical attraction model. Experiments are conducted exploiting the data collected by thousands of taxies over one week in Wuhan City, China. The results show that the accuracy of the data is improved and the proposed algorithm is demonstrated to be practical and effective.
Students’ Decision-Making in Education for Sustainability-Related Extracurricular Activities—A Systematic Review of Empirical Studies
Authors: Garrecht Carola , Bruckermann Till , Harms Ute
Published: October 2018

Equipping students with the capability to perform considerate decision-making is a key competence to elaborate socio-scientific issues. Particularly in the socio-scientific context of sustainable development, decision-making is required for the processing of information and the implementation of sustainable action. Extracurricular activities in education for sustainable development (ESD) offer a suitable format to promote decision-making due to their multidisciplinary and more informal structure. The purpose of this literature review is therefore to analyze empirical studies that explore students’ (1) decision-making in (2) ESD-related (3) extracurricular activities. Following the preferred-reporting of items for systematic reviews and meta-analyses (PRISMA) guidelines, a systematic search yielded 19 out of 365 articles, each of them addressing all three components. Despite the theoretical relationship, hardly any empirical enquiry is found examining the trinomial interrelation with an equal consideration of all components. Contrarily, we argue that each is positioned in favor for only one component with the others serving as a backdrop. It follows that the full potential of an equal distribution between all three foci has not been explored yet; even though integrating sustainability-related issues in extracurricular activities displays a promising learning opportunity to optimally foster students’ decision-making. Instead, studies that concentrate primarily on decision-making as a quantitatively measurable competence were predominant.
Enterprise Architecture for a Facilitated Transformation from a Linear to a Circular Economy
Authors: Laumann Felix , Tambo Torben
Published: October 2018

The circular economy is central to the agenda of responsible production and consumption with propositions for the conservation of natural resources and a broader understanding of the obligations of enterprises and product developers. The circular economy is challenging traditional operating models of enterprises due to the need to manage larger parts of the product life cycle and value chains. A linear economy will normally address a smaller part of the life cycle. The operating models of companies are supported with respect to information and technology with an enterprise architecture model. This article examines the necessary steps for analysing and designing the enterprise architecture model, aiming to facilitate the transformation of an enterprise from operating in a linear to operating in a circular economy model. The fundamentals and requirements of the circular economy enterprise are extracted to isolate the design requirements for the operating model, entailing cross-enterprise collaboration, traceability, and a broader value chain understanding. Furthermore, it conceptualizes enterprise architecture and its role and importance in connecting business strategies and operating technologies. This article develops an enterprise architecture framework, named the Circular Economy Enterprise Architecture Framework (CEEAF), which can form and support the effort of transitioning companies or be embedded into existing enterprise architecture frameworks. The CEEAF differs from traditional enterprise architecture frameworks by addressing the broader responsibility of the enterprise, the extended enterprise, the elimination of end-of-life perspectives and mind-sets, and the capabilities of the individual enterprise and its design activities.
On the Use of Satellite Sentinel 2 Data for Automatic Mapping of Burnt Areas and Burn Severity
Authors: Lasaponara Rosa , Tucci Biagio , Ghermandi Luciana
Published: October 2018

In this paper, we present and discuss the preliminary tools we devised for the automatic recognition of burnt areas and burn severity developed in the framework of the EU-funded SERV_FORFIRE project. The project is focused on the set up of operational services for fire monitoring and mitigation specifically devised for decision-makers and planning authorities. The main objectives of SERV_FORFIRE are: (i) to create a bridge between observations, model development, operational products, information translation and user uptake; and (ii) to contribute to creating an international collaborative community made up of researchers and decision-makers and planning authorities. For the purpose of this study, investigations into a fire burnt area were conducted in the south of Italy from a fire that occurred on 10 August 2017, affecting both the protected natural site of Pignola (Potenza, South of Italy) and agricultural lands. Sentinel 2 data were processed to identify and map different burnt areas and burn severity levels. Local Index for Statistical Analyses LISA were used to overcome the limits of fixed threshold values and to devise an automatic approach that is easier to re-apply to diverse ecosystems and geographic regions. The validation was assessed using 15 random plots selected from in situ analyses performed extensively in the investigated burnt area. The field survey showed a success rate of around 95%, whereas the commission and omission errors were around 3% of and 2%, respectively. Overall, our findings indicate that the use of Sentinel 2 data allows the development of standardized burn severity maps to evaluate fire effects and address post-fire management activities that support planning, decision-making, and mitigation strategies.
The Approach of Including TVOCs Concentration in the Indoor Environmental Quality Model (IEQ)—Case Studies of BREEAM Certified Office Buildings
Authors: Piasecki Michał , Kozicki Mateusz , Firląg Szymon , Goljan Anna , Kostyrko Krystyna
Published: October 2018

The article analyzes the impact of measured concentrations of Total Volatile Organic Compounds (TVOC) emissions determined for four BREEAM certified buildings on the Indoor Air Quality Index (IAQindex) and the overall Indoor Environment Quality index (IEQindex). The IEQindex indicates the percentage of building users who are satisfied from the indoor environment. In existing IEQ models, currently the concentration of CO2 is mostly used to evaluate the IAQindex sub-component. Authors point out that it is recommended to use TVOC instead CO2 at pre-occupant stage where building is mainly polluted by emission from finishing products. The research provides the approach where the component related to the emission of TVOCs is implemented to IEQ model. The first stage of assessment was a test of the volatile organic compounds concentrations in case study buildings. Secondly, the analysis results were assigned into the number of dissatisfied users (PD(IAQ)) from the theoretical function given by Jokl-Fanger resulting from the Weber-Fechner equation. Finally, the overall IEQindex was calculated. The IEQ approach proposed in this paper is mainly based on a consideration of EN 15251 and scientifically accepted models.
An Assistive Technology for Braille Users to Support Mathematical Learning: A Semantic Retrieval System
Authors: Asebriy Zahra , Raghay Said , Bencharef Omar
Published: October 2018

Mathematical learning from digital libraries and the web is a challenging problem for people with visual impairments and blindness. In this paper, we focus on developing the mathematical learning skills of braille users with a new assistive technology developed to retrieve semantically mathematical information from the web. This kind of research is still in the study phase. This paper presents an overview of assistive technologies for braille users followed by a description of the proposed system, which works in four phases. In the first phase, we translate a query math formula in braille into MathML code, and then we extract the structural and semantic meaning from the MathML expressions using multilevel presentation. In the classification phase, we choose a multilevel similarity measure based on K-Nearest Neighbors to evaluate the relevance between expressions. Finally, the query result is converted to braille math expressions. Experiments based on our database show that the new system provides more efficient results in responding to user queries.
Decision and Coordination in a Dual-Channel Three-Layered Green Supply Chain
Authors: Song Zilong , He Shiwei , An Baifeng
Published: October 2018

This paper investigated, for the first time, the game and coordination of a dual-channel, three-layered, green fresh produce supply chain, with regard to its economic, social, and environmental performance. Considering that the market demand is dual-channel priced and sensitive to the degree of greenness and the freshness-level, four game models, under different scenarios have been established. These included a centralized scenario, a decentralized scenario, and two contractual scenarios. The equilibrium solutions under the four scenarios were characterized. From the perspective of a sustainable development, the economic, social, and environmental performance of the supply chain was analyzed. To enhance the supply chain performance, two contract mechanisms were designed and the conditions for a multi-win outcome were obtained. Accordingly, many propositions and management implications were provided. The results showed that, (1) compared to the centralized supply chain case, the performance of the decentralized supply chain case is inferior; (2) in addition to increasing the concentration of the supply chain decisions, the two contracts proposed can effectively coordinate the green supply chain and improve its sustainable performance; and (3) the performance of the supply chain is positively driven by the consumers’ sensitivity to greenness degree and the freshness level of fresh produce. This paper fills a research gap and helps the participants of the channel recognize the operational decision principle of a complex green supply chain, in order to achieve a higher and a long-term sustainable-development performance.
Evidence of Human Parvovirus B19 Infection in the Post-Mortem Brain Tissue of the Elderly
Authors: Skuja Sandra , Vilmane Anda , Svirskis Simons , Groma Valerija , Murovska Modra
Published: October 2018

After primary exposure, the human parvovirus B19 (B19V) genome may remain in the central nervous system (CNS), establishing a lifelong latency. The structural characteristics and functions of the infected cells are essential for the virus to complete its life cycle. Although B19V has been detected in the brain tissue by sequencing PCR products, little is known about its in vivo cell tropism and pathogenic potential in the CNS. To detect B19V and investigate the distribution of its target cells in the CNS, we studied brain autopsies of elderly subjects using molecular virology, and optical and electron microscopy methods. Our study detected B19V in brain tissue samples from both encephalopathy and control groups, suggesting virus persistence within the CNS throughout the host’s lifetime. It appears that within the CNS, the main target of B19V is oligodendrocytes. The greatest number of B19V-positive oligodendrocytes was found in the white matter of the frontal lobe. The number was significantly lower in the gray matter of the frontal lobe (p = 0.008) and the gray and white matter of the temporal lobes (p < 0.0001). The morphological changes observed in the encephalopathy group, propose a possible B19V involvement in the demyelination process.
Innate Immunity Activation and RNAi Interplay in Citrus Exocortis Viroid—Tomato Pathosystem
Authors: Olivier Thibaut , Bragard Claude
Published: October 2018

Although viroids are the smallest and simplest plant pathogens known, the molecular mechanisms underlying their pathogenesis remain unclear. To unravel these mechanisms, a dual approach was implemented consisting of in silico identification of potential tomato silencing targets of pospiviroids, and the experimental validation of these targets through the sequencing of small RNAs and RNA ends extracted from tomatoes infected with a severe isolate of Citrus exocortis viroid (CEVd). The generated RNA ends were also used to monitor the differentially-expressed genes. These analyses showed that when CEVd symptoms are well established: (i) CEVd are degraded by at least three Dicer-like (DCL) proteins and possibly by RNA-induced silencing complex (RISC), (ii) five different mRNAs are partially degraded through post-transcriptional gene silencing (PTGS), including argonaute 2a, which is further degraded in phasiRNAs, (iii) Dicer-like 2b and 2d are both upregulated and degraded in phasiRNAs, and (iv) CEVd infection induced a significant shift in gene expression allowing to explain the usual symptoms of pospiviroids on tomato and to demonstrate the constant activation of host innate immunity and systemic acquired resistance (SAR) by these pathogenic RNAs. Finally, based on in silico analysis, potential immunity receptor candidates of viroid-derived RNAs are suggested.
Modeling Fish Movement Trajectories in Relation to Hydraulic Response Relationships in an Experimental Fishway
Authors: Tan Junjun , Tao Lin , Gao Zhu , Dai Huichao , Shi Xiaotao
Published: October 2018

This study developed an IBM (individual-based model) to model fish movement trajectories integrating hydraulic stimulus variables (turbulent kinetic energy (TKE), velocity (V) and strain rate (SR)) to which fish responded, and the rules for individual fish movement. The fish movement trajectories of the target fish, silver carp (Hypophthalmichthys molitrix), were applied to model fish trajectories in a 1% vertical slot fishway at a discharge of 13.5 L/s. Agreement between measured and simulated trajectories implied the plausibility of the movement rules, which illustrated that the fish movement trajectories model has the preliminary ability to track individual fish trajectories for this fishway.
Water Supply Basins of São Paulo Metropolitan Region: Hydro-Climatic Characteristics of the 2013–2015 Water Crisis
Authors: Milano Marianne , Reynard Emmanuel , Muniz-Miranda Graziele , Guerrin Joana
Published: October 2018

São Paulo metropolitan region experienced an acute water crisis between 2013 and 2015. According to the Brazilian and international press, it was due to climatic, anthropogenic, and water management factors. This paper assesses the hydro-climatic characteristics of the crisis by focusing on the Alto-Tietê basin and the headwater of the Piracicaba-Capivari-Jundiaí (PCJ) basin that supply 70% of the water consumed in the metropolis. Based on 16 rain-gauge stations, 5 runoff-gauge stations, and several statistical analyses carried over the 1951–2015 period, this assessment shows that the 2013–2015 hydro-climatic crisis resulted from a large number of days without rain in the north of the Alto-Tietê basin and to less intense precipitation events in the headwaters of the PCJ basin during the austral spring 2013 and the year 2014. It also defines a return period of 98 years for observed river flows in 2014. Despite the rare nature of this hydrological drought, the need for efficient water saving policies is brought forward.
The crystal chemistry of the micas
Authors: Zussman Jack
Published: October 2018

Cet article passe en revue plusieurs aspects de la cristallochimie des micas. Les principaux sujets discutés sont : relations entre les caractéristiques structurales (principalement l'empilement des feuillets et la rotation des tétraèdres) et l'étendue des substitutions ioniques observées ; ordre des cations dans les tétraèdres et les octaèdres ; interaction entre ions (OH) et liaison interfeuillet.
Ca-bearing phlogopite : synthesis and solid solubility at high temperatures and pressures of 5 and 10 kilobars
Authors: Olesch Martin
Published: October 2018

Les cristaux mixtes de phlogopite à Ca ayant la composition (a) sur la section phlogopite-mica à Ca hypothétique, et (b) sur la section phlogopite-clintonite, ont été synthétisés sur voie hydrothermale, à des températures jusqu'à 1 100° C et à 5 et 10 kbar PH2O-Comme substitution maximale de Ca il a résulté x = 0,17 à 1 000° C/5 kbar et x = 0,15 à 1 000° C/10 kbar, sur la section (a) et x = 0,20 à 1 020° C/5 kbar et x — 0,18 à 1 000°/10 kbar sur la section (b). Les constantes réticulaires a, b, c, Y des cristaux mixtes de phlogopite vont en décroissant avec l'augmentation du contenu en composants mica à Ca dans le phlogopite. La formation des polytypes 2MX est favorisée par l'augmentation de la pression et par la formation des cristaux mixtes dans la direction mica à Ca. La formation des cristaux mixtes comprend presque l'entière variation des phlogopites naturels et la dépasse en phlogopites eastonitiques. Le trajet incliné du solvus des phlogopites à Ca ne permet pas son utilisation comme géothermomètre. La pauvreté de Ca dans les phlogopites kimberlitiques peut être expliquée par la dépendance des cristaux mixtes, de la composition globale. L'effet du Ca dans le phlogopite eastonitique peut produire probablement le déplacement du commencement de la fusion vers des températures plus hautes.
Étude expérimentale de lépidolites trioctaédriques hydroxylées
Authors: Robert Jean-Louis , Volfinger Marcel
Published: October 2018

On a étudié l'étendue des solutions solides entre la phlogopite et trois pôles lépidolitiques trioctaédriques hydroxylés — la taeniolite, la trilithionite et la polylithionite — en fonction de la température, entre 400° C et 900° C, sous une pression d'eau de 2 kbar. On observe qu'aucun des trois pôles lépidolitiques n'est stable dans les conditions expérimentales adoptées. L'étendue des solutions solides étudiées croît lorsque diminue la température de synthèse. L'évolution des paramètres cristallographiques traduit nettement la fixation du lithium dans la couche octaédrique. Pour chacune des deux distances réticulaires mesurées, l'évolution en fonction de la teneur en lithium se fait avec la même pente dans les trois séries selon les réactions :

d005 (À) = 2,033 — 0,4135 •10-6 X

d060 (À) = 1,535 — 1.235 • 10-6 X

où X est la teneur en lithium du mica exprimée en p. p. m.

On soupçonne, enfin, l'existence à haute température d'un mica lithique lacunaire, proche du joint taeniolite -mica tétrasilicique magnésien.
Le lithium dans une phlogopite de synthèse
Authors: Volfinger Marcel , Robert Jean-Louis
Published: October 2018

On a étudié le mode de fixation du lithium dans une phlogopite cristallisée en présence d'une solution hydrothermale de LiCl. Le bilan chimique ainsi que la forte décroissance de la distance réticulaire d005 montrent que le lithium se fixe dans l'interfeuillet en remplacement du potassium et non pas dans les sites de la couche octaédrique comme c'est le cas dans les lépidolites.

On montre que Li+ ne peut occuper entre les feuillets le site alcalin laissé vacant par le départ de K+. On propose la localisation de Li+ entre les oxygènes de base de deux tétraèdres appartenant à deux feuillets consécutifs. Les cavités de ce type (prismes droits à base triangulaire) les plus favorables sont celles que limitent deux tétraèdres alumineux. Ce modèle permet de calculer a priori la teneur limite en lithium, fonction de la teneur en AlIV du mica.
Les micas dans les roches «para-dérivées » d'origine graywackeuse de la série métamorphique du Bas-Limousin (Massif central, France)
Authors: Guillot Pierre-Louis
Published: October 2018

Microprobe analysis provides us new data with in the composition of micas in the metagraywackes of the south Limousin area (French Central Massif). From chlorite zone to sillimanite zone, biotites show an increase in the Al4+ ⇌ Si4+ and Ti4+ ⇌ Mg (Fe)2+ substitution. White micas change from phengitic muscovites with Si4+ from 3,2 to 3,3, to fairly aluminous muscovites, with Si4+ from 3,0 to 3,1 and a hight Na-content (15 to 25 % in paragonite).
Cinétique de la libération de l'argon de l'eau et des composés carbonés dans le matériel de référence glauconite GL-O
Authors: Zimmermann Jean-Louis , Odin Gilles Serge
Published: October 2018

Le matériel de référence glauconite GL-O a été chauffé sous vide en connection avec un spectromètre de masse. Les différents gaz argon-eau-méthane, gaz carbonique, etc. ont été analysés quantitativement ou semi-quantitativement. Le chauffage s'est fait soit de 100 en 100° C avec analyse de chaque fraction entre 200 et 1 000° C, soit de façon continue. On peut ainsi repérer assez bien les sorties de l'argon et de l'eau de constitution. Elles se font de façon pratiquement synchrone entre 300 et 6oo° C. Le départ d'argon est lié à la modification du réseau cristallin ; une diffusion de l'argon hors du réseau tant qu'il reste stable n'est pas impliquée. Les énergies d'activation calculées : 28 kcal • mole-1 pour l'argon, 20 kcal «mole-1 pour l'eau, sont approximatives et ne sont valables que dans le domaine de température 300 à 500° C.
Accurate control of the covalent functionalization of single-walled carbon nanotubes for the electro-enzymatically controlled oxidation of biomolecules
Authors: Allali Naoual , Urbanova Veronika , Etienne Mathieu , Devaux Xavier , Mallet Martine , Vigolo Brigitte , Adjizian Jean-Joseph , Ewels Chris P , Oberg Sven , Soldatov Alexander V , McRae Edward , Fort Yves , Dossot Manuel , Mamane Victor
Published: October 2018

Single-walled carbon nanotubes (SWCNTs) were functionalized by ferrocene through ethyleneglycol chains of different lengths (FcETGn) and the functionalized SWCNTs (f-SWCNTs) were characterized by different complementary analytical techniques. In particular, high-resolution scanning electron transmission microscopy (HRSTEM) and electron energy loss spectroscopy (EELS) analyses support that the outer tubes of the carbon-nanotube bundles were covalently grafted with FcETGn groups. This result confirms that the electrocatalytic effect observed during the oxidation of the reduced form of nicotinamide adenine dinucleotide (NADH) co-factor by the f-SWCNTs is due to the presence of grafted ferrocene derivatives playing the role of a mediator. This work clearly proves that residual impurities present in our SWCNT sample (below 5 wt. %) play no role in the electrocatalytic oxidation of NADH. Moreover, molecular dynamic simulations confirm the essential role of the PEG linker in the efficiency of the bioelectrochemical device in water, due to the favorable interaction between the ETG units and water molecules that prevents π-stacking of the ferrocene unit on the surface of the CNTs. This system can be applied to biosensing, as exemplified for glucose detection. The well-controlled and well-characterized functionalization of essentially clean SWCNTs enabled us to establish the maximum level of impurity content, below which the f-SWCNT intrinsic electrochemical activity is not jeopardized.
FOXO1 regulates oncogenic PKC-ι expression in melanoma inversely to c-Jun in an autocrine manner via IL-17E and ICAM-1 activation
Authors: RATNAYAKE WISHRAWANA , APOSTOLATOS CHRISTOPHER , BREEDY SLOAN , APOSTOLATOS ANDRE , ACEVEDO-DUNCAN MILDRED
Published: October 2018

Regardless of abundant efforts to enhance primary prevention and early detection, the number of melanoma cases in the United States has increased steadily over the past 15 years, thus greatly affecting public health and the economy. In previous studies, we demonstrated protein kinase C‑ι (PKC‑ι) to be an oncogene in melanoma, which promotes the activation of nuclear factor (NF)‑κB, thereby supporting survival and progression. In addition, we demonstrated that PKC‑ι induced the metastasis of melanoma cells by activating Vimentin, and PKC‑ι inhibition downregulated epithilial‑mesencymal transition (EMT), while inducing apoptosis. Of note, PKC‑ι specific inhibitors downregulated the expression of both PKC‑ι and phosphorylated PKC‑ι, suggesting that PKC‑ι plays a role in regulating its own expression in melanoma. In this study, we report the underlaying mechanisms of the transcriptional regulation of PKC‑ι (PRKCI gene) expression in melanoma. c‑Jun, interferon‑stimulated gene factor 3 (ISGF3), paired box gene 3 (PAX3), early growth response protein 1 (EGR1) and Forkhead box protein O1 (FOXO1), which bind on or near the promoter sequence of the PRKCI gene, were analyzed for their role in PKC‑ι regulation in SK‑MEL‑2 and MeWo cell lines. We silenced selected transcription factors using siRNA, and the results revealed that the silencing of c‑Jun and FOXO1 significantly altered the expression of PRKCI. The levels of both phosphorylated and total PKC‑ι increased upon FOXO1 silencing and decreased upon c‑Jun silencing, suggesting that c‑Jun acts as an upregulator, while FOXO1 acts as a downregulator of PRKCI expression. We also used a multiplex ELISA to analyze multiple pathways other than NF‑κB that were affected by treatment with PKC‑ι inhibitor. The silencing of NF‑κB p65 and PKC‑ι by siRNA suggested that the regulation of PKC‑ι expression was strongly associated with FOXO1. In addition, we observed a significant decrease in the mRNA levels of both interleukin (IL)‑6 and IL‑8, with a significant increase in the levels of IL‑17E and intercellular adhesion molecule 1 (ICAM‑1) upon the knockdown of expression of PKC‑ι in both cell lines. This suggested that PKC‑ι expression was affected by these cytokines in an autocrine manner. Overall, the findings of this study suggest that PKC‑ι inhibition suppresses its own expression, diminishing oncogenic signaling, while upregulating anti‑tumor signaling, thus rendering it an effective novel biomarker for use in the design of novel targeted therapeutics for melanoma.
Produção de ciência e tecnologia dos inventores de uma universidade tecnológica: insights sobre a presença da ecoinovação na tecnologia
Authors: Queiroz Dayane Cristina , Meza Maria Lucia Figueiredo
Published: October 2018

A universidade tem o papel de promotora de ciência e tecnologia (C&T) no sistema de inovação (SI), além de enfrentar pressões por maior inclusão social e maior diálogo com o setor produtivo. O estudo tem como objetivo investigar a produção de C&T dos inventores da UTFPR e verificar a presença da ecoinovação nas suas patentes de invenção, para compreender sua contribuição no SI. Esta pesquisa se caracteriza por ser qualitativa, exploratória e descritiva a partir de um estudo de caso. Os resultados mostram que a maioria dos professores inventores investigados na UTFPR é engenheiro e possui publicações com citações nas bases de dados Scopus e Web of Science. Parte significativa de suas invenções é desenvolvida com alunos da graduação e pós-graduação e menos de 20% delas são desenvolvidas inter institucionalmente, com destaque para as instituições de ensino. Por fim, cerca de 30% das invenções analisadas foram consideradas ecoinovações, predominando as inovações do tipo complementares.
Análise da colaboração universidade-empresa em Sergipe a partir dos grupos de pesquisa cadastrados no CNPq
Authors: Florêncio Márcio Nannini Silva , Macedo Ricardo Fontes , Malacarne Alan , Abud Ana Karla Souza , Oliveira Junior Antonio Martins
Published: October 2018

A colaboração Universidade-Empresa tem sido uma estratégia importante para melhorar o desenvolvimento econômico e alavancar a inovação. Nessa linha, este artigo tem por objetivo apresentar o panorama da colaboração Universidade-Empresa em Sergipe, através do mapeamento dos grupos de pesquisas no Estado que mantêm parcerias com empresas, feito a partir de levantamento no Diretório Nacional de Grupos de Pesquisa do CNPq. Nas análises dos dados adotaram-se técnicas relativas à análise de redes sociais. Os resultados mostraram uma fraca colaboração das Universidades com o setor produtivo em Sergipe. Contudo, a cooperação acadêmica é um elemento forte que inclusive tem formado parcerias com outros Estados e países. Sugerem-se, ainda, algumas ações para alavancar esta colaboração.
Reuso de água em indústria de fabricação de estruturas em concreto: uma estratégia de gestão ambiental
Authors: Jaros Odppes Rafael , Teixeira Michalovicz Diego , Bilotta Patrícia
Published: October 2018

Diante das frequentes crises hídricas registradas no Brasil, o reuso industrial de água e de efluente tratado é um importante instrumento na gestão dos recursos hídricos, sobretudo nas grandes cidades. O objetivo do trabalho foi analisar a oportunidade de redução do consumo de água potável em indústria de fabricação de estruturas em concreto, considerando requisitos quantitativos, qualitativos e econômico-financeiros. A metodologia utilizada baseou-se em: coletas de campo para determinar a oferta e a demanda de água de reuso no empreendimento estudado; levantamento da qualidade da água de reuso requerida; proposta de tratamento e avaliação do investimento necessário. Os resultados mostraram um potencial de redução de 61% da demanda mensal de água potável do empreendimento analisado, com um baixo investimento (cerca de R$ 3.000,00). Concluiu-se que o reuso de água pode ser considerado uma alternativa estratégica para a empresa, sobretudo em um cenário de cobrança pelo uso da água e de restrição em caso de escassez.
Universidade, sociedade e urbano: espacialização e significação da instituição dentro do contexto urbano
Authors: Wagner Izabel Cristina , Cunha Alencastro Mario Sérgio
Published: October 2018

Pretende-se, por meio deste artigo, refletir acerca da história da universidade ocidental, seus principais modelos institucionais e a espacialização destes juntamente a diversos contextos urbanos. Mediante pesquisa bibliográfica e análises de localização e implantação, conjetura-se sobre a importância da ligação entre a instituição de ensino e a própria sociedade, destacando a relevância do sentimento de pertencimento por parte da comunidade e seu significado juntamente ao meio urbano. As análises de implantação e localização são delimitadas pelos três principais modelos de universidade (alemão, francês e norte-americano), destacando-se um exemplo de cada modelo para análise. Quando do modelo francês, foram apresentados dois exemplos devido à sua proximidade. Desta forma, o artigo visa destacar a importância, não apenas de modelos e metodologias, ou da trajetória histórica da instituição, mas da relação entre espacialização e significado da universidade dentro das sociedades atuais.
Sustainability of rain water supply technologies: a methodology applied to Belém county islands
Authors: Silva Adriana Dias da , Mendes Ronaldo Lopes Rodrigues , Bello Leonardo Augusto Lobato , Farias Andre Luis Assunção
Published: October 2018

In the Grande and Murutucu islands, county of Belém, Pará state, lack of drinking water is the major challenge to improve the quality of life of river bank inhabitants, because they use the rivers as main source for water consumption without any treatment. This was a key fact for caring out studies that lead to the deployment and implementation in 2011, of two Rain Water Utilization Systems (RWUS), one in each island previously mentioned. Therefore, this study aimed to evaluate the sustainability of these supply technologies, adapting the Barometer of Sustainability tool, through the definition of 5 dimensions and their respective topics and indicators, allowing to identify that the RWUS
Three new species of Phanerochaete (Polyporales, Basidiomycota)
Authors: Wu Sheng-Hua , Chen Che-Chih , Wei Chia-Ling
Published: October 2018

Phanerochaetecanobrunnea, P.cystidiata and P.fusca are presented as new species, supported by morphological studies and two sets of phylogenetic analyses. The 5.8S+nuc 28S+rpb1 dataset shows the generic placement of the three species within the phlebioid clade of Polyporales. The ITS+nuc 28S dataset displays relationships for the new taxa within Phanerochaete s.s. Phanerochaetecanobrunnea grew on angiosperm branches in subtropical Taiwan and is characterised by greyish brown hymenial surface, brown generative hyphae and skeletal hyphae and absence of cystidia. Phanerochaetecystidiata grew on angiosperm branches above 1000 m in montane Taiwan and SW Yunnan Province of China and is characterised by cream to yellowish hymenial surface and more or less encrusted leptocystidia. Phanerochaetefusca grew on angiosperm branches at 1700 m in Hubei Province of China and is characterised by dark brown hymenial surface, leptocystidia, brown subicular hyphae and colourless to brownish basidiospores.
Effect of “Single” vs. “Multiple” possession and usage of loyalty programme on re-purchase intention behavior of airline frequent passengers in India
Authors: Pappachan Joemon
Published: October 2018

Purpose: This paper tries to find out the effect of single vs. multiple possession and usage of frequent flyer programme by frequent passengers on their re-purchase intention behavior in India.  Design/methodology/approach: This paper tested the hypotheses, whether the variations in possession level of frequent flyer programme influences the relationship among the selected antecedent variables such as passengers’ satisfaction with the loyalty programme, passengers’ level of trust in the airline and the perceived brand image on the re-purchase intention behavior of frequent passengers. A structural equation model depicting the re-purchase behavior of frequent flyers were developed and tested. Findings:  There exists an overall statistical validity of the model build-up by using structural equation modeling.  Significant differences are observed in brand and trust variables in influencing re-purchase intention behavior of frequent passengers. This finding was further verified in correspondence to the variations in loyalty programme status and possession levels of loyalty programme memberships.Practical implications: Re-purchase behavior of passengers holding single and multiple loyalty programme memberships were compared and drawn implications for the airlines to guesstimate re-purchase intentions of regular passengers. Originality/value: The empirical findings of this study proves that there is a tendency to shift from single to multiple possessions of airline loyalty memberships while the frequent passengers progress on their travel needs.  This study proclaimed that passengers possessing single loyalty programme are more influenced by brand image of the airline where as passengers using multiple loyalty programmes are by and large accustomed by means of the trust in the airline services than its brand image.
Las campañas en Mesia durante la primera guerra dácica de Trajano (101-102 d. c.): la última tentativa expansionista del Estado dacio
Authors: Soria Molina David
Published: October 2018

Las operaciones desarrolladas en Mesia Inferior en los meses de verano y otoño del año 101 d. C., durante la primera guerra dácica de Trajano, supusieron la última gran manifestación de las ambiciones expansionistas del Estado dacio en la Europa danubiana y a punto estuvieron de inclinar seriamente contra de Roma la balanza de la contienda. La contundente derrota sufrida por los dacios y sus aliados a manos de Trajano en Mesia Inferior, por contra, sentenció el resultado de la guerra y selló indirectamente el destino final del reino dacio. A lo largo de estas páginas abordamos un detallado análisis de estas operaciones, su alcance y sus implicaciones estratégicas, mediante una concienzuda revisión de las fuentes literarias, epigráficas e iconográficas, combinado con un apropiado conocimiento del escenario del conflicto, sus características y su impacto sobre el desarrollo de la campaña.
El manuscrito persa sobre tiro con arco Izá (Revelación) por Tāher Māwarā al-Nahri
Authors: Moshtagh Khorasani Manouchehr , Dwyer Bede
Published: October 2018

En este artículo se traduce y comenta un manuscrito persa sin fecha sobre el tiro con arco titulado Izá (Revelación), escrito por Tāher Māwarā al-Nahri. Las referencias internas sugieren que algunas partes del texto fueron escritas en épocas tempranas. El autor, Tāher Māwarā al-Nahri, es actualmente desconocido y las fechas de su nacimiento y muerte son inciertas. El autor presenta sus argumentos, y a sí mismo, con seguridad, y está convencido de la corrección de sus enseñanzas magistrales. Este maestro, Ja’far Māwarā al-Nahri, es igualmente desconocido actualmente, aunque el epíteto, Māwarā al-Nahri, aplicado a ambos, significa «desde más allá del río». Este epíteto sugiere que provenían de Transoxania o fueron descendientes de personas de esa zona. Por tanto, es posible que este manual sea el único que ha sobrevivido en relación a las tradiciones de tiro con arco de Asia Central.
Communication Jigsaw: A Teaching Method that Promotes Scholarly Communication
Authors: Yoshida Masami
Published: October 2018

This study examined the Communication Jigsaw as a novel, applied jigsaw strategy aimed to extend scholarly communication between university students. As the defining characteristic of the Communication Jigsaw, writing sheets were used as resources for reports and discussions. This documentation method enabled students to access all reports. In addition, a comment session was introduced to provide educational access to all subtopics. Contents were entrusted to each student and a student’s actuation for self-directed, deep learning appeared in the quality of their comments and their selection of reports for comment. All reports and commenting activities were facilitated by e-Learning technologies and monitored. Then, collected data were analyzed using social graphs.
This study revealed that the comment session nurtured critical competencies toward applying acquired knowledge and finding information. Additionally, the Communication Jigsaw enabled the identification of outstanding performances among students and their connections. The Communication Jigsaw facilitated finding and analyzing the process of forming academic hubs and cliques within the scholarly community. The distribution spectrum of connections in the comment section did not conform to Gaussian distribution principles but rather the distinct distribution pattern characteristic of social communication. Taken together, this study showed a concrete example of lesson design and evaluation method to be adaptable to the flat world communication.