bluuebunny/crossref_metadata_2025 huggingface dataset:
Contributions of Work-Related Stress and Emotional Intelligence to Teacher Engagement: Additive and Interactive Effects
Authors: Mérida-López Sergio , Extremera Natalio , Rey Lourdes
Published: September 2017

This study examined the additive and interactive effects of role stress and emotional intelligence for predicting engagement among 288 teachers. Emotional intelligence and engagement were positively associated. Role ambiguity and role conflict showed negative associations with vigor and dedication scores. The interaction of role ambiguity and emotional intelligence was significant in explaining engagement dimensions. Similar results were found considering overall teacher engagement. Emotional intelligence boosted engagement when the levels of role ambiguity were higher. Our findings suggest the need for future research examining the impact of job hindrances on the links between emotional intelligence and teachers’ occupational well-being indicators. Finally, the implications for emotional intelligence training in education are discussed.
Patterns of Novel Alleles and Genotype/Phenotype Correlations Resulting from the Analysis of 108 Previously Undetected Mutations in Patients Affected by Neurofibromatosis Type I
Authors: Bonatti Francesco , Adorni Alessia , Matichecchia Annalisa , Mozzoni Paola , Uliana Vera , Pisani Francesco , Garavelli Livia , Graziano Claudio , Gnoli Maria , Carli Diana , Bigoni Stefania , Boschi Elena , Martorana Davide , Percesepe Antonio
Published: September 2017

Neurofibromatosis type I, a genetic disorder due to mutations in the NF1 gene, is characterized by a high mutation rate (about 50% of the cases are de novo) but, with the exception of whole gene deletions associated with a more severe phenotype, no specific hotspots and few solid genotype/phenotype correlations. After retrospectively re-evaluating all NF1 gene variants found in the diagnostic activity, we studied 108 patients affected by neurofibromatosis type I who harbored mutations that had not been previously reported in the international databases, with the aim of analyzing their type and distribution along the gene and of correlating them with the phenotypic features of the affected patients. Out of the 108 previously unreported variants, 14 were inherited by one of the affected parents and 94 were de novo. Twenty-nine (26.9%) mutations were of uncertain significance, whereas 79 (73.2%) were predicted as pathogenic or probably pathogenic. No differential distribution in the exons or in the protein domains was observed and no statistically significant genotype/phenotype correlation was found, confirming previous evidences.
Vibration Analysis of a Composite Concrete/GFRP Slab Induced by Human Activities
Authors: Junges Paulo , Rovere Henriette Lebre La , Pinto Roberto Caldas de Andrade
Published: September 2017

Fiber-reinforced polymer (FRP) materials have been introduced recently in the construction of new structural systems, particularly in footbridge systems. Innovative systems that combine concrete with FRP materials lead to lighter and more slender structures as compared to conventional reinforced concrete structures, which can bring about vibration problems. In this work, a vibration analysis of a composite slab subjected to human activities is performed, both experimentally and numerically. The slab is composed of a concrete top laid on glass fiber-reinforced polymer (GFRP) I-section pultruded profiles. In the experimental analysis, two prototypes of 0.80 m width and 4.00 m span, representing a slab strip, were subjected to walking and jumping by several volunteers. In the numerical analysis, the slab was modeled by finite elements under dynamic loadings that simulate walking and jumping. Both the experimental and numerical results have indicated that the dynamic behavior under human activities of the composite slab must be considered in the design.
Membrane Distillation of Meat Industry Effluent with Hydrophilic Polyurethane Coated Polytetrafluoroethylene Membranes
Authors: Mostafa M. G. , Zhu Bo , Cran Marlene , Dow Noel , Milne Nicholas , Desai Dilip , Duke Mikel
Published: September 2017

Meat rendering operations produce stick water waste which is rich in proteins, fats, and minerals. Membrane distillation (MD) may further recover water and valuable solids, but hydrophobic membranes are contaminated by the fats. Here, commercial hydrophobic polytetrafluorethylene (PTFE) membranes with a hydrophilic polyurethane surface layer (PU-PTFE) are used for the first time for direct contact MD (DCMD) on real poultry, fish, and bovine stick waters. Metal membrane microfiltration (MMF) was also used to capture fats prior to MD. Although the standard hydrophobic PTFE membranes failed rapidly, PU-PTFE membranes effectively processed all stick water samples to colourless permeate with sodium rejections >99%. Initial clean solution fluxes 5–6 L/m2/h declined to less than half during short 40% water recovery tests for all stick water samples. Fish stick water uniquely showed reduced fouling and up to 78% water recovery. Lost flux was easily restored by rinsing the membrane with clean water. MMF prior to MD removed 92% of fats, facilitating superior MD performance. Differences in fouling between stick waters were attributed to temperature polarisation from higher melt temperature fats and relative proportions to proteins. Hydrophilic coated MD membranes are applicable to stick water processing but further studies should consider membrane cleaning and longer-term stability.
A Comprehensive Review of Our Current Understanding of Red Blood Cell (RBC) Glycoproteins
Authors: Aoki Takahiko
Published: September 2017

Human red blood cells (RBC), which are the cells most commonly used in the study of biological membranes, have some glycoproteins in their cell membrane. These membrane proteins are band 3 and glycophorins A–D, and some substoichiometric glycoproteins (e.g., CD44, CD47, Lu, Kell, Duffy). The oligosaccharide that band 3 contains has one N-linked oligosaccharide, and glycophorins possess mostly O-linked oligosaccharides. The end of the O-linked oligosaccharide is linked to sialic acid. In humans, this sialic acid is N-acetylneuraminic acid (NeuAc). Another sialic acid, N-glycolylneuraminic acid (NeuGc) is present in red blood cells of non-human origin. While the biological function of band 3 is well known as an anion exchanger, it has been suggested that the oligosaccharide of band 3 does not affect the anion transport function. Although band 3 has been studied in detail, the physiological functions of glycophorins remain unclear. This review mainly describes the sialo-oligosaccharide structures of band 3 and glycophorins, followed by a discussion of the physiological functions that have been reported in the literature to date. Moreover, other glycoproteins in red blood cell membranes of non-human origin are described, and the physiological function of glycophorin in carp red blood cell membranes is discussed with respect to its bacteriostatic activity.
3D Printing of Metals
Authors: Gupta Manoj
Published: September 2017

The potential benefits that could be derived if the science and technology of 3D printing were to be established have been the crux behind monumental efforts by governments, in most countries, that invest billions of dollars to develop this manufacturing technology.[...]
Erratum: Correlation-Based Multiplexing of Complex Amplitude Data Pages in a Holographic Storage System Using Digital Holographic Techniques. Polymers, 2017, 9, 375
Authors: Nobukawa Teruyoshi , Nomura Takanori
Published: September 2017

The authors wish to make a change to the published paper [1].[...]
The Cross-Cultural Kingship in Early Medieval Kāmarūpa: Blood, Desire and Magic
Authors: Rosati Paolo
Published: September 2017

Kingship in early medieval Kāmarūpa (Assam) was influenced by the collision of orthodox and heterodox Brahmanic traditions with various tribal cultures. Since the last part of the Śālastambha period (seventh–tenth century) the royal tutelary deity of Kāmarūpa was the menstruating Kāmākhyā, an ancient kirāta goddess. According to the Puranic tradition, the cult of Kāmākhyā was absorbed within Hindu religious folds by the mytho-historical king Naraka of Kāmarūpa. According to textual and epigraphic records, Naraka was conceived by Pṛthvī (Earth goddess) during her menstrual period, through a sexual intercourse with varāha (boar form of Viṣṇu). All early medieval dynasties of Kāmarūpa traced back their origins to Naraka, connecting their lines to the divine power but also to the menstrual blood—a substance considered extremely impure though powerful in Vedic and post-Vedic traditions. The king operated as a cross-cultural mediator: he was the only actor who was able to harness the produced polluted forces, through the Tantric rituals, in order to strengthen the political power. Thence, this essay aims to demonstrate, through inter- and intra-textual evidences, epigraphic records, and ethnographic data, that in Assam throughout the early medieval ages, the kingship grounded its roots in an osmotic cross-cultural process which was influenced by tribal traditions and orthodox and heterodox Hindu sects.
Improved Numerical Calculation of the Single-Mode-No-Core-Single-Mode Fiber Structure Using the Fields Far from Cutoff Approximation
Authors: Xu Wei , Shi Jia , Yang Xianchao , Xu Degang , Rong Feng , Zhao Junfa , Yao Jianquan
Published: September 2017

Multimode interferometers based on the single-mode-no-core-single-mode fiber (SNCS) structure have been widely investigated as functional devices and sensors. However, the theoretical support for the sensing mechanism is still imperfect, especially for the cladding refractive index response. In this paper, a modified model of no-core fiber (NCF) based on far from cut-off approximation is proposed to investigate the spectrum characteristic and sensing mechanism of the SNCS structure. Guided-mode propagation analysis (MPA) is used to analyze the self-image effect and spectrum response to the cladding refractive index and temperature. Verified by experiments, the performance of the SNCS structure can be estimated specifically and easily by the proposed method.
A Novel Online Data-Driven Algorithm for Detecting UAV Navigation Sensor Faults
Authors: Sun Rui , Cheng Qi , Wang Guanyu , Ochieng Washington
Published: September 2017

The use of Unmanned Aerial Vehicles (UAVs) has increased significantly in recent years. On-board integrated navigation sensors are a key component of UAVs’ flight control systems and are essential for flight safety. In order to ensure flight safety, timely and effective navigation sensor fault detection capability is required. In this paper, a novel data-driven Adaptive Neuron Fuzzy Inference System (ANFIS)-based approach is presented for the detection of on-board navigation sensor faults in UAVs. Contrary to the classic UAV sensor fault detection algorithms, based on predefined or modelled faults, the proposed algorithm combines an online data training mechanism with the ANFIS-based decision system. The main advantages of this algorithm are that it allows real-time model-free residual analysis from Kalman Filter (KF) estimates and the ANFIS to build a reliable fault detection system. In addition, it allows fast and accurate detection of faults, which makes it suitable for real-time applications. Experimental results have demonstrated the effectiveness of the proposed fault detection method in terms of accuracy and misdetection rate.
Social Support Networks and the Mental Health of Runaway and Homeless Youth
Authors: Wright Eric , Attell Brandon , Ruel Erin
Published: September 2017

In response to growing concerns about the rising number of runaway and homeless youth (RHY) in the U.S., researchers have sought to improve the scientific understanding of health and mental health needs, as well as the social resources available to these youths. In this paper, we examine the relationship between personal support network resources and the mental health status of a sample of RHY (N = 693) surveyed in metro-Atlanta, Georgia. The results suggest that having more supportive network ties reduces the risk of youth experiencing significant symptoms of a severe mental illness. We also find that older youth and youth who have been homeless for six months or longer have fewer personal support network resources. We conclude with a discussion of the implications of our findings for future research and services for this exceptionally vulnerable population.
Risk Measurement and Risk Modelling Using Applications of Vine Copulas
Authors: Allen David , McAleer Michael , Singh Abhay
Published: September 2017

This paper features an application of Regular Vine copulas which are a novel and recently developed statistical and mathematical tool which can be applied in the assessment of composite financial risk. Copula-based dependence modelling is a popular tool in financial applications, but is usually applied to pairs of securities. By contrast, Vine copulas provide greater flexibility and permit the modelling of complex dependency patterns using the rich variety of bivariate copulas which may be arranged and analysed in a tree structure to explore multiple dependencies. The paper features the use of Regular Vine copulas in an analysis of the co-dependencies of 10 major European Stock Markets, as represented by individual market indices and the composite STOXX 50 index. The sample runs from 2005 to the end of 2013 to permit an exploration of how correlations change indifferent economic circumstances using three different sample periods: pre-GFC (January 2005–July 2007), GFC (July 2007– September 2009), and post-GFC periods (September 2009–December 2013). The empirical results suggest that the dependencies change in a complex manner, and are subject to change in different economic circumstances. One of the attractions of this approach to risk modelling is the flexibility in the choice of distributions used to model co-dependencies. The practical application of Regular Vine metrics is demonstrated via an example of the calculation of the VaR of a portfolio made up of the indices.
Attitudes of the Lifestyle of Health and Sustainability Segment in Hungary
Authors: Szakály Zoltán , Popp József , Kontor Enikő , Kovács Sándor , Pető Károly , Jasák Helga
Published: September 2017

The aim of the research was to define the size of the Hungarian LOHAS (Lifestyle of Health and Sustainability) consumer group by analyzing its lifestyle based on sustainable values. To achieve this goal, a representative questionnaire-based survey was carried out involving 1000 individuals in Hungary. During the value-orientated research, 25 lifestyle statements were drawn up. According to the results, five value-based segments could be distinguished. The largest cluster, the young trend followers group, reflects the characteristics of the LOHAS consumers’ lifestyle to the greatest extent. However, this segment cannot entirely be regarded as a consumer group devoted to LOHAS values, which is why a further segmentation of this group was necessary. As a result of this further segmentation, the third sub-cluster, which emphasizes the ethical (competence) statements the most, can be identified with the LOHAS consumer group, which makes up 8.7% of the Hungarian population. Further research is necessary to find out whether the situation regarding value orientation in Hungary is similar to that in other Eastern European countries whose social and cultural backgrounds are very similar. Revealing the values of the Lifestyle of Health and Sustainability segment contributes to the extension of the literature.
An Analysis of Decision Factors on the Price of South Korea’s Certified Emission Reductions in Use of Vector Error Correction Model
Authors: Park Sumin , Lee Yong-Gil
Published: September 2017

This study analyzes factors affecting the price of South Korea’s Certified Emission Reduction (CER) using statistical methods. CER refers to the transaction price for the amount of carbon emitted. Analysis of results found a co-integration relationship among the price of South Korea’s CER, oil price (WTI), and South Korea’s maximum electric power demand, which means that there is a long-term relationship among the three variables. Based on this result, VECM (vector error correction model) analysis, impulse response function, and variance decomposition were performed. As the oil price (WTI) increases, the demand for gas in power generation in Korea declines while the demand for coal increases. This leads to increased greenhouse gas (GHG; e.g., CO2) emissions and increased price of South Korea’s CERs. In addition, rising oil prices (WTI) cause a decline in demand for oil products such as kerosene, which results in an increase in South Korea’s maximum power demand.
Mathematical Modeling and a Hybrid NSGA-II Algorithm for Process Planning Problem Considering Machining Cost and Carbon Emission
Authors: Huang Jin , Jin Liangliang , Zhang Chaoyong
Published: September 2017

Process planning is an important function in a manufacturing system; it specifies the manufacturing requirements and details for the shop floor to convert a part from raw material to the finished form. However, considering only economical criterion with technological constraints is not enough in sustainable manufacturing practice; formerly, criteria about low carbon emission awareness have seldom been taken into account in process planning optimization. In this paper, a mathematical model that considers both machining costs reduction as well as carbon emission reduction is established for the process planning problem. However, due to various flexibilities together with complex precedence constraints between operations, the process planning problem is a non-deterministic polynomial-time (NP) hard problem. Aiming at the distinctive feature of the multi-objectives process planning optimization, we then developed a hybrid non-dominated sorting genetic algorithm (NSGA)-II to tackle this problem. A local search method that considers both the total cost criterion and the carbon emission criterion are introduced into the proposed algorithm to avoid being trapped into local optima. Moreover, the technique for order preference by similarity to an ideal solution (TOPSIS) method is also adopted to determine the best solution from the Pareto front. Experiments have been conducted using Kim’s benchmark. Computational results show that process plan schemes with low carbon emission can be captured, and, more importantly, the proposed hybrid NSGA-II algorithm can obtain more promising optimal Pareto front than the plain NSGA-II algorithm. Meanwhile, according to the computational results of Kim’s benchmark, we find that both of the total machining cost and carbon emission are roughly proportional to the number of operations, and a process plan with less operation may be more satisfactory. This study will draw references for the further research on green manufacturing in the process planning level.
A Cross-Sectional Serosurvey of Anti-Orthopoxvirus Antibodies in Central and Western Africa
Authors: Leendertz Siv , Stern Daniel , Theophil Dennis , Anoh Etile , Mossoun Arsène , Schubert Grit , Wiersma Lidewij , Akoua-Koffi Chantal , Couacy-Hymann Emmanuel , Muyembe-Tamfum Jean-Jacques , Karhemere Stomy , Pauly Maude , Schrick Livia , Leendertz Fabian , Nitsche Andreas
Published: September 2017

Since the eradication of smallpox and the subsequent discontinuation of the worldwide smallpox vaccination program, other Orthopoxviruses beside Variola virus have been increasingly representing a risk to human health. To investigate the extent of natural contact with Orthopoxviruses and possible demographic risk factors for such an exposure, we performed a cross-sectional serosurvey of anti-Orthopoxvirus IgG antibodies in West and Central Africa. To this end, people living in forest regions in Côte d’Ivoire (CIV, n = 737) and the Democratic Republic of the Congo (COD, n = 267) were assigned into groups according to their likely smallpox vaccination status. The overall prevalence of anti-Orthopoxvirus antibodies was 51% in CIV and 60% in COD. High rates of seropositivity among the vaccinated part of the population (80% in CIV; 96% COD) indicated a long-lasting post vaccination immune response. In non-vaccinated participants, seroprevalences of 19% (CIV) and 26% (COD) indicated regular contact with Orthopoxviruses. Multivariate logistic regression revealed that the antibody level in the vaccinated part of the population was higher in COD than in CIV, increased with age and was slightly higher in females than males. In the unvaccinated part of the population none of these factors influenced antibody level significantly. In conclusion, our results confirm expectedly high anti-Orthopoxvirus seroprevalences in previously smallpox-vaccinated people living in CIV and the COD but more unexpectedly imply regular contact with Orthopoxviruses both in Western and Central Africa, even in the absence of recognized outbreaks.
Current Peptide and Protein Candidates Challenging HIV Therapy beyond the Vaccine Era
Authors: Chupradit Koollawat , Moonmuang Sutpirat , Nangola Sawitree , Kitidee Kuntida , Yasamut Umpa , Mougel Marylène , Tayapiwatana Chatchai
Published: September 2017

Human immunodeficiency virus (HIV) is a causative agent of acquired immune deficiency syndrome (AIDS). Highly active antiretroviral therapy (HAART) can slow down the replication of HIV-1, leading to an improvement in the survival of HIV-1-infected patients. However, drug toxicities and poor drug administration has led to the emergence of a drug-resistant strain. HIV-1 immunotherapy has been continuously developed, but antibody therapy and HIV vaccines take time to improve its efficiency and have limitations. HIV-1-specific chimeric antigen receptor (CAR)-based immunotherapy founded on neutralizing antibodies is now being developed. In HIV-1 therapy, anti-HIV chimeric antigen receptors showed promising data in the suppression of HIV-1 replication; however, autologous transfusion is still a problem. This has led to the development of effective peptides and proteins for an alternative HIV-1 treatment. In this paper, we provide a comprehensive review of potent anti-HIV-1 peptides and proteins that reveal promising therapeutic activities. The inhibitory mechanisms of each therapeutic molecule in the different stages of the HIV-1 life cycle will be discussed herein.
Integrating Ecological Restoration of Agricultural Non-Point Source Pollution in Poyang Lake Basin in China
Authors: Cai Shuo , Shi Hong , Pan Xiaohua , Liu Fangping , Cui Yuanlai , Xie Hengwang
Published: September 2017

This study addresses the excessive consumption of river basin water from the Poyang Lake area in China. Consumption of water for irrigation, together with the discharge of agricultural non-point source pollution, is seriously affecting the water quality of Poyang Lake. This study assesses the application of integrated ecological restoration technology for agricultural non-point source pollution in the Ganfu Plain Area, which is an important agricultural production base in the Poyang Lake basin. The results indicated that the water-fertilizer comprehensive regulation mode for double-cropping rice provided water savings of 10.4% and increased rice yield by 6.5% per hectare. Furthermore, it reduced drainage water pollution by 20.4%, and emissions of ammonium nitrogen (NH4+-N), nitrate nitrogen (NO3−-N), total phosphorus (TP), and total nitrogen (TN) from rice paddy surfaces by 18.6%, 11.1%, 15.4%, and 16.0%, respectively. The eco-channel–pond wetland system effectively reduced TN and TP pollutant levels in rice paddy drainage water; the eco-channel reduced TN and TP by 9.3% and 14.0%, respectively; and the pond wetland system showed reductions of 8.6% and 22.9%, respectively. The “three lines of defense” purification technology, including rice field source control, eco-channel interception, and pond wetland purification, removed 29.9% of TN and 44.3% of TP.
Primers for Castilleja and their utility across Orobanchaceae: I. Chloroplast primers1
Authors: Latvis Maribeth , Mortimer Sebastian M. E. , Morales‐Briones Diego F. , Torpey Samuel , Uribe‐Convers Simon , Jacobs Sarah J. , Mathews Sarah , Tank David C.
Published: September 2017

Premise of the study:

Chloroplast primers were developed from genomic data for the taxonomically challenging genus Castilleja. We further tested the broader utility of these primers across Orobanchaceae, identifying a core set of chloroplast primers amplifying across the clade.

Methods and Results:

Using a combination of three low‐coverage Castilleja genomes and sequence data from 12 Castilleja plastomes, 76 primer combinations were specifically designed and tested for Castilleja. The primers targeted the most variable portions of the plastome and were validated for their applicability across the clade. Of these, 38 primer combinations were subsequently evaluated in silico and then validated across other major clades in Orobanchaceae.

Conclusions:

These results demonstrate the utility of these primers, not only across Castilleja, but for other clades in Orobanchaceae—particularly hemiparasitic lineages—and will contribute to future phylogenetic studies of this important clade of parasitic plants.
Measuring the Growth Rate of Structure with Type IA Supernovae from LSST
Authors: Howlett Cullan , Robotham Aaron S. G. , Lagos Claudia D. P. , Kim Alex G.
Published: September 2017

We investigate the peculiar motions of galaxies up to z = 0.5 using Type Ia supernovae (SNe Ia) from the Large Synoptic Survey Telescope (LSST) and predict the subsequent constraints on the growth rate of structure. We consider two cases. Our first is based on measurements of the volumetric SNe Ia rate and assumes we can obtain spectroscopic redshifts and light curves for varying fractions of objects that are detected pre-peak luminosity by LSST (some of which may be obtained by LSST itself, and others that would require additional follow-up observations). We find that these measurements could produce growth rate constraints at

that significantly outperform those found using Redshift Space Distortions (RSD) with DESI or 4MOST, even though there are

fewer objects. For our second case, we use semi-analytic simulations and a prescription for the SNe Ia rate as a function of stellar mass and star-formation rate to predict the number of LSST SNe IA whose host redshifts may already have been obtained with the Taipan+WALLABY surveys or with a future multi-object spectroscopic survey. We find ∼18,000 and ∼160,000 SNe Ia with host redshifts for these cases, respectively. While this is only a fraction of the total LSST-detected SNe Ia, they could be used to significantly augment and improve the growth rate constraints compared to only RSD. Ultimately, we find that combining LSST SNe Ia with large numbers of galaxy redshifts will provide the most powerful probe of large-scale gravity in the

regime over the coming decades.
A Model of the Pulsating Extremely Low-mass White Dwarf Precursor WASP 0247–25B
Authors: Istrate A. G. , Fontaine G. , Heuser C.
Published: September 2017

We present an analysis of the evolutionary and pulsation properties of the extremely low-mass white dwarf precursor (B) component of the double-lined eclipsing system WASP 0247−25. Given that the fundamental parameters of that star have been obtained previously at a unique level of precision, WASP 0247−25B represents the ideal case for testing evolutionary models of this newly found category of pulsators. Taking into account the known constraints on the mass, orbital period, effective temperature, surface gravity, and atmospheric composition, we present a model that is compatible with these constraints and show pulsation modes that have periods very close to the observed values. Importantly, these modes are predicted to be excited. Although the overall consistency remains perfectible, the observable properties of WASP 0247−25B are closely reproduced. A key ingredient of our binary evolutionary models is represented by rotational mixing as the main competitor against gravitational settling. Depending on assumptions made about the values of the degree index ℓ for the observed pulsation modes, we found three possible seismic solutions. We discuss two tests, rotational splitting and multicolor photometry, that should readily identify the modes and discriminate between these solutions. However, this will require improved temporal resolution and higher S/N observations, which are currently unavailable.
La médiation artistique
Authors: Orrado Isabelle
Published: September 2017

De nombreuses institutions culturelles proposent des ateliers à médiation artistique. Dans cet article, nous partirons de l’expérience d’un atelier peinture proposé à des jeunes relevant de structures spécialisées et pour lesquels des effets bénéfiques sur leur comportement et leur relation aux autres ont été observés. Plus spécifiquement, la présentation du travail de Tom témoignera de la manière dont une limitation de jouissance peut s’opérer au sein d’un tel atelier. Nous serons alors conduits à proposer une articulation entre pratique artistique et effets thérapeutiques à partir des notions de cadre et dispositif. Situant le savoir du côté de l’enfant, la position des médiateurs comme accompagnants est essentielle pour faire du cadre une ouverture où l’enfant peut mettre au travail ce nouage toujours singulier qui s’opère entre réel et symbolique à l’orée de l’advenu du sujet.
Evaluación resistográfica en elementos de maderas desfibradas de la torre de lixiviación de la oficina salitrera Santa Laura en Chile. Patrimonio de la Humanidad
Authors: Ortiz R. , Fuentes N. , Jamet A. , Moya A. , González M. , Paz Varela M. , Ramírez A. , Adofacci G. , Martínez P.
Published: September 2017

La torre de lixiviación se encuentra ubicada en la oficina salitrera Santa Laura en Chile. En los últimos años se han realizado estudios, mediante Técnicas No Destructivas (TND), los que han determinado que la torre se encuentra en buen estado. No obstante, existen dudas respecto a las reales dimensiones de los elementos constructivos afectados por el desfibrado. El presente estudio tuvo como objetivo evaluar elementos de madera desfibrada, de la torre de lixiviación de la oficina salitrera Santa Laura, mediante la técnica de resistografía. Estudios adicionales de ultrasonido y xilohigrometría también fueron desarrollados. Los resultados obtenidos establecen que la disminución de las dimensiones de los elementos evaluados no presenta diferencia significativa y que no existen daños profundos en las maderas. El estudio confirma que el edificio no se encuentra en riesgo.
Cyanobacterial community diversity in the sediments of the Pearl River Estuary in China
Authors: Sun Fu-Lin , Wang You-Shao , Wu Mei-Lin , Sun Cui-Ci
Published: September 2017

Cyanobacterial community diversity in the sediment of the Pearl River Estuary in China was evaluated in this study by denaturing gradient gel electrophoresis (DGGE) during the wet and dry seasons. Nucleotide sequences obtained from DGGE bands were classified into five cyanobacterial clusters, including Synechococcus, Cyanobium, Chroococcus, Prochlorales and Tolypothrix. Synechococcus was identified as the dominant cyanobacterial group in the sediment samples; its distribution varied from the inner estuary to the outer estuary, with a wide range of salinity adaptation. Observed patterns of cyanobacterial communities changed markedly between sampling sites and seasons, suggesting that most cyanobacteria were not delivered via fresh water. Canonical correspondence analysis was conducted to determine the relationship between environmental variables and bacterial community structures during the dry season. The results suggested that the cyanobacterial community was significantly influenced by pH, salinity, PO4-P and NO3-N in sediments.
Emerging Business Models in Education Provisioning: A Case Study on Providing Learning Support as Education-as-a-Service
Authors: Prifti Loina , Knigge Marlene , Löffler Alexander , Hecht Sonja , Krcmar Helmut
Published: September 2017

This study aims to give a deeper understanding on emerging business models in the context of education. Industry 4.0/the Industrial Internet in general and especially recent advances in cloud computing enable a new kind of service offering in the education sector and lead to new business models for education: Education-as-a-Service (EaaS). Within EaaS, learning, and teaching contents are delivered as services. By combining a literature review with a qualitative case study, this paper makes a three-fold contribution to the field of business models in education: First, we provide a theoretical definition for a common understanding of EaaS. Second, we present the state-of-the-art research on this new paradigm. Third, in the case study we describe a “best practices” business model of an existing EaaS provider. These insights build a theoretical foundation for further research in this area. The paper concludes with a research agenda for further research in this emerging field.
A COMPARISON OF FOUR DAYLIGHTING METRICS IN ASSESSING THE DAYLIGHTING PERFORMANCE OF THREE SHADING SYSTEMS
Authors: Boubekri Mohamed , Lee Jaewook
Published: September 2017

The assessment of the daylighting performance of a design solution is a complex task due to the changing nature of daylight. A few quantitative metrics are available to designers to assess such a performance, among them are the mean hourly illuminance (MHI), the daylight factor (DF), the daylight autonomy (DA) and the useful daylight illuminance (UDI). Each of these metrics has a purpose, a set of criteria and limitations that affect the outcome of the evaluation. When to use one metric instead of another depends largely on the design goals to be achieved. Using Design Iterate Validate Adapt (DIVA) daylighting simulation program, we set out to examine the performance behavior of these four metrics with the changing dimensions of three shading devices: a horizontal overhang, a horizontal louver system, and a vertical fin system, and compare their performance behavior as the orientation changes of the window to which these devices are attached. The context is a typical classroom of a prototypical elementary school. Our results indicate that not all four metrics behave similarly as we vary the size of each shading device and as orientation changes. The lesson learned is that not all daylighting metrics lead to the same conclusions and that it is important to use the metric that corresponds to the specific goals and objectives of the design and of the daylighting solution. The UDI is the metric that leads to outcomes most different than the other three metrics investigated in this paper.
Le Brésil et ses Indiens : une réconciliation impossible ?
Authors: Le Tourneau François-Michel
Published: September 2017

En ouvrant de larges droits fonciers aux Amérindiens, la Constitution de 1988 avait semblé avancer dans le sens de la réparation du préjudice historique représenté par la dépossession territoriale des Amérindiens. Trente ans plus tard, force est de constater que la réconciliation attendue n’a pas eu lieu. Le moteur principal de la dispute est sans aucun doute d’ordre spatial. Les Amérindiens disposent en théorie aujourd’hui d’un usufruit exclusif sur une portion considérable du territoire brésilien (environ 13,7 %) mais le balancier semble avoir effectué son mouvement en sens inverse depuis une dizaine d’années. Pour faire le point sur cette question et sur les enjeux qui lui sont liés, cet article propose tout d’abord un rapide panorama historique de la manière dont la question amérindienne a été considérée au Brésil depuis la colonisation portugaise jusqu’aux avancées de la fin du XXe siècle, en nous focalisant principalement sur la question des territoires. Dans un deuxième temps, nous montrerons comment la Constitution de 1988 a permis la consolidation d’un patrimoine foncier très important, alors que la population amérindienne demeure ultra-minoritaire. La dernière partie fait le point sur la situation actuelle en essayant de montrer comment l’inflexion dans un sens défavorable aux droits fonciers des Amérindiens est patente depuis plus de dix ans et combien la situation actuelle met à l’épreuve les protections dont ils bénéficient. En conclusion, on s’interroge sur les scénarios possibles pour les prochaines années.
The Brazilian National Policy for Regional Development and the RIDE-DF Management opposite the Governance vs Brasília’s Metropolitan Area
Authors: Santos Renata Callaça Gadioli dos , Bessa Luiz Fernando de Macedo , Lúcio Magda de Lima
Published: September 2017

La politique nationale brésilienne pour le développement régional - PNDR a été créée par le décret 6047/2007. Cependant, de nombreux gestionnaires publics affirment qu'elle n'a pas encore atteint un statut de politique d'État ou un consensus politique ou fédéral capable de promouvoir une croissance non fragmentée et équilibrée des régions. La discussion porte maintenant sur l'institutionnalisation d'une nouvelle politique, le PNDR II, qui continue de réduire les inégalités régionales et cherche à remédier aux insuffisances de la première proposition. Malgré la proposition de mise à jour de la législation en question, le territoire métropolitain de Brasilia, également défini par la législation fédérale et appelé RIDE DF et Entorno - Région intégrée de développement du District fédéral et de ses environs, est identifié comme un domaine prioritaire de planification et de gestion, mais sa gouvernance métropolitaine continue de créer des conflits et de maintenir l'inégalité dans ses zones périphériques. Pour contribuer au débat sur la portée possible du PNDR dans la gestion d'une ville aussi importante et complexe, qui est aussi la capitale fédérale, et ses régions métropolitaines respectives, nous proposons une analyse théorique et méthodologique du modèle de gouvernance urbaine. Tout au long de l'analyse, nous démontrerons la relation entre PNDR I et II et la - RIDE-DF et Entorno, une proposition de gestion territoriale du District fédéral du Brésil et de son agglomération urbaine. Dans ce contexte, l'objectif de cet article est d'analyser les instruments proposés par la nouvelle politique nationale pour le développement régional face au défi d'une meilleure gouvernance régionale ou métropolitaine pour le RIDE DF et Entorno.
The San values of conflict prevention and avoidance in Platfontein
Authors: Mollema Nina
Published: September 2017

The aim of this article is to identify measures that can prevent violent conflict through the maintenance of traditional cultural values that guide conflict avoidance. Moreover, the article focuses on the concepts of conflict prevention and conflict avoidance as applied by the San community of Platfontein. The causes of the inter-communal tensions between the San community members are also examined. A selected conflict situation, that of superstition and witchcraft, is assessed as factors increasing interpersonal conflict in the Platfontein community. This investigation is made to determine if the San preventive measures have an impact in the community, so as to prevent ongoing conflicts from escalating further.
Une revue des développements récents des vaccins de la fièvre aphteuse
Authors: Lombard Michel
Published: September 2017

Depuis l’interdiction de la vaccination obligatoire contre la Fièvre Aphteuse en France (1991), les développements de la technologie vaccinale ont été si divers que les vaccins aujourd’hui disponibles sont plus avantageux que par le passé ; les vaccins avaient alors comme adjuvants l’ hydroxyde d’aluminium et la saponine, avec une dose de 5 ml.

Les vaccins modernes sont hautement purifiés, les adjuvants sont meilleurs, l’innocuité plus élevée pour un usage plus large chez les espèces sensibles. H est possible de conserver un million de doses d’antigènes fortement congelés d’avance, sous forme très concentrée et purifiée ; ce qui rend la vaccination immédiate plus facile, car un grand nombre de doses peut être préparé dans un court laps de temps (4 à 7 jours).

L’élimination des principales protéines non structurelles au cours de la purification donne aux vaccins modernes la propriété intéressante de ne plus interférer avec la surveillance sérologique effectuée dans le but d’identifier des groupes d’animaux infectés ou porteurs au moyen de protéines marqueurs de l’infection Fièvre Aphteuse.

Des évidences scientifiques supplémentaires tirées d’expérimentations démontrent que la vaccination avec des vaccins à fort potentiel peut prévenir l’excrétion du virus et l’état de porteur dans les populations animales vaccinées, ce qui contribue à stopper rapidement l’extension de la maladie.

Au début du présent siècle, les vétérinaires et les Autorités ont désormais l’occasion de sélectionner, afin de contrôler les épidémies de Fièvre Aphteuse, d’autres mesures que l’abattage en masse.
Explaining Political Agitators: Socialization and Class in the Making of Gani Fawehinmi and Fela Anikulapo Kuti of Nigeria
Authors: Eesuola Olukayode Segun
Published: September 2017

Why do certain individuals make everyone’s business their business? Why do they get so emotionally involved in public policies as if only they are affected, damning whatever unpleasant consequences their action and inaction may cause? Why do such people neither wait to be mobilized, nor themselves wait to mobilize others before taking antagonistic stands on public issues? Subjecting the lives and times of two prominent Nigerian agitators, Gani and Fela to theoretical interrogations through the life history approach, this paper argues that two basic factors: socialization and class, are major determinants of the attitudes of man towards political issues around him, and that so long as the two factors endure in social formations, individuals will always emerge as different political personalities with different political dispositions. What nations and policy makers do with views and thoughts of agitators towards public good is what needs further debate.
The Felonious Stereotyping of the Woman in Nollywood Films
Authors: Okafor Nonso
Published: September 2017

The woman, an embodiment of character and charisma, undaunted and passionate has been over the years viewed from varied perceptive, and this has permutated for characteristic ambiguity, hence the need for stereotyping. Stereotyping, is an erroneous assumptive conclusion, which inconclusively defines a character subject to probable outcomes and thereto premonitions. Film, an art of representing the reality in sequence which does not alter the reality in itself, has been a very good medium for communicating the happenings in the society and the major contenders (by this I mean the man, the woman, the children and their society). No doubt however, that this representation is a near truth, but has influenced the psychological dispositions (by way of standardization) and views of the people in the society. Therefore, this work examines the extent in which the film, IDEMILI (a film by Earnest Obi) has violated the character called woman, in its guise to representing the persona known as woman. Also, it explores the nature of the woman, by this I mean it reveals an in-depth understanding of the dynamics of the character of the woman, which has now formed the nature and nurture which the woman now embodies, thereby correcting the anomaly created in the process of revealing the nature of the woman, especially as being portrayed by Nollywood. This work also proffers dynamic representation of the female character which will reduce and consequently eradicate the stereotypic view of the woman in Nollywood films.Keywords: Stereotyping, Gender roles, Idemili, Woman, Violence, Nature, Nurture.
Development, Demonstration and Validation of the Deep Space Orbit Determination Software Using Lunar Prospector Tracking Data
Authors: Lee Eunji , Kim Youngkwang , Kim Minsik , Park Sang-Young
Published: September 2017

The deep space orbit determination software (DSODS) is a part of a flight dynamic subsystem (FDS) for the Korean Pathfinder Lunar Orbiter (KPLO), a lunar exploration mission expected to launch after 2018. The DSODS consists of several sub modules, of which the orbit determination (OD) module employs a weighted least squares algorithm for estimating the parameters related to the motion and the tracking system of the spacecraft, and subroutines for performance improvement and detailed analysis of the orbit solution. In this research, DSODS is demonstrated and validated at lunar orbit at an altitude of 100 km using actual Lunar Prospector tracking data. A set of a priori states are generated, and the robustness of DSODS to the a priori error is confirmed by the NASA planetary data system (PDS) orbit solutions. Furthermore, the accuracy of the orbit solutions is determined by solution comparison and overlap analysis as about tens of meters. Through these analyses, the ability of the DSODS to provide proper orbit solutions for the KPLO are proved.
Leipzig Ice Nucleation chamber Comparison (LINC): intercomparison of four online ice nucleation counters
Authors: Burkert-Kohn Monika , Wex Heike , Welti André , Hartmann Susan , Grawe Sarah , Hellner Lisa , Herenz Paul , Atkinson James D. , Stratmann Frank , Kanji Zamin A.
Published: September 2017

Abstract. Ice crystal formation in atmospheric clouds has a strong effect on precipitation, cloud lifetime, cloud radiative properties, and thus the global energy budget. Primary ice formation above 235 K is initiated by nucleation on seed aerosol particles called ice-nucleating particles (INPs). Instruments that measure the ice-nucleating potential of aerosol particles in the atmosphere need to be able to accurately quantify ambient INP concentrations. In the last decade several instruments have been developed to investigate the ice-nucleating properties of aerosol particles and to measure ambient INP concentrations. Therefore, there is a need for intercomparisons to ensure instrument differences are not interpreted as scientific findings.In this study, we intercompare the results from parallel measurements using four online ice nucleation chambers. Seven different aerosol types are tested including untreated and acid-treated mineral dusts (microcline, which is a K-feldspar, and kaolinite), as well as birch pollen washing waters. Experiments exploring heterogeneous ice nucleation above and below water saturation are performed to cover the whole range of atmospherically relevant thermodynamic conditions that can be investigated with the intercompared chambers. The Leipzig Aerosol Cloud Interaction Simulator (LACIS) and the Portable Immersion Mode Cooling chAmber coupled to the Portable Ice Nucleation Chamber (PIMCA-PINC) performed measurements in the immersion freezing mode. Additionally, two continuous-flow diffusion chambers (CFDCs) PINC and the Spectrometer for Ice Nuclei (SPIN) are used to perform measurements below and just above water saturation, nominally presenting deposition nucleation and condensation freezing.The results of LACIS and PIMCA-PINC agree well over the whole range of measured frozen fractions (FFs) and temperature. In general PINC and SPIN compare well and the observed differences are explained by the ice crystal growth and different residence times in the chamber. To study the mechanisms responsible for the ice nucleation in the four instruments, the FF (from LACIS and PIMCA-PINC) and the activated fraction, AF (from PINC and SPIN), are compared. Measured FFs are on the order of a factor of 3 higher than AFs, but are not consistent for all aerosol types and temperatures investigated. It is shown that measurements from CFDCs cannot be assumed to produce the same results as those instruments exclusively measuring immersion freezing. Instead, the need to apply a scaling factor to CFDCs operating above water saturation has to be considered to allow comparison with immersion freezing devices. Our results provide further awareness of factors such as the importance of dispersion methods and the quality of particle size selection for intercomparing online INP counters.