bluuebunny/crossref_metadata_2025 huggingface dataset:
Numénius a-t-il commenté le Parménide ?
Authors: Jourdan Fabienne
Published: June 2019

Si Numénius, en platonicien de son temps, a utilisé le Timée et la République pour élaborer et étayer sa pensée métaphysique et cosmologique, il est devenu coutume de penser qu’il a également eu recours au Parménide dans sa description du premier principe. Il peut même paraître tentant d’identifier chez lui ce principe à l’Un. L’examen attentif de son œuvre ne fournit cependant que peu d’indices en ce sens et convainc même qu’elle ne permet pas une telle interprétation. Malgré ces conclusions, l’hypothèse persiste pour des raisons qui tiennent principalement à l’histoire de la philosophie et aux recherches qu’elle suscite. Elle est en effet souvent reprise pour trois raisons, présentées comme corollaires : le statut propre à Numénius de platonicien pythagorisant, prédécesseur de Plotin ; les affinités réelles entre sa pensée et celle du Commentaire anonyme au Parménide ; les parallèles également entrevus entre ses formules et celles de la source supposée commune au Zostrien et au Contre Arius de Marius Victorinus, conçue quant à elle comme fort proche du Commentaire anonyme . Autrement dit, sont invoquées trois raisons nées moins de l’étude de l’œuvre de Numénius elle-même que de la recherche des sources d’autres textes en mal d’auteur et d’origines bien définies, recherche se fondant en partie sur les prétendus liens entre Numérius et ses « pairs » en pythagorisme. L’étude proposée comporte trois parties indépendantes, examinant chacune de ces trois raisons avec les hypothèses qui lui sont associées. Après une esquisse des principaux tenants de la pensée de Numénius, cette première partie aborde les rapports parfois perçus et ceux encore perceptibles entre son œuvre et le Parménide . Elle montre que Numénius n’a visiblement pas utilisé le dialogue de Platon pour élaborer sa propre doctrine des deux premiers principes et a même pu adopter une relative distance à l’égard de l’Un de la première hypothèse, suivant en cela une injonction qu’il a pu penser percevoir chez Platon lui-même. Dès ce premier examen, il apparaît que l’œuvre parvenue de Numénius ne suggère pas de bouleverser la conception la plus courante de l’histoire du platonisme en faisant de Numénius le précurseur de Plotin dans l’interprétation métaphysique du Parménide . L’interrogation sur son rapport à ce dialogue fournit même a contrario les critères d’une interprétation réellement néoplatonicienne de la seconde partie de celui-ci. Un prolongement de cette étude montre toutefois que Numénius a pu inspirer Plotin dans son interprétation de certaines formules du Parménide historique lui-même.
L’entrée en pédagogie différente : « La part de l’enfant dans l’éducation du maître »
Authors: Gentès Deborah
Published: June 2019

Cet article traite de « l’entrée en pédagogie différente » à partir d’une re-définition du statut de l’enfant et de celui de l’adulte dans la relation éducative, qui trouve son origine dans la pédagogie Freinet. En s’appuyant sur les différentes implications de l’auteur, en tant qu’enseignante, parent et chercheuse sur le terrain de l’éducation en anthropologie symétrique, nous verrons par quel biais, nous pouvons apprendre des enfants, et comment nous pouvons accéder au partage de leurs expériences.
Demanda turístico-recreativa y equipamientos de uso público en monumentos naturales protegidos: La “Cueva de los Murciélagos” en el Parque Natural de las Sierras Subbéticas
Authors: Rivera Mateos Manuel , Hidalgo Fernández Amalia , Hernández Rojas Ricardo
Published: June 2019

Para la gestión de los flujos turístico-recreativos en los espacios y monumentos naturales protegidos, su planificación medioambiental y el impulso del desarrollo local, la caracterización de los visitantes se revela como una necesidad básica. Cuando no cuentan con ésta, como es el caso del espacio de montaña media aquí estudiado, la planificación turística y medioambiental presenta notables deficiencias y los recursos patrimoniales y equipamientos de uso público suelen encontrarse infrautilizados y con problemas de funcionalidad y sostenibilidad, además de no responder adecuadamente a las expectativas de la demanda de visitantes. La aproximación que se realiza en este trabajo a la caracterización de ésta en este espacio natural protegido intenta orientar por ello sus políticas territoriales y sectoriales con incidencia en el turismo de naturaleza y su necesaria compatibilización con la conservación del patrimonio natural que le sirve de soporte y cualificación.
Financial Technologies
Authors: Lee Debra Hooi Chern , Rehman Mobashar , Au Yong Hui Nee , Hashmani Manzoor Ahmed
Published: June 2019

This chapter explores the concept of Financial Technology (FinTech) and how it has progressed to where it is today. This understanding is further supplemented with the applications of FinTech and the challenges it has to tackle in order to continue to evolve in a favourable manner. Being a key player in the FinTech sector, this chapter also delves into the concept of blockchain technology (BCT) to comprehend how it holds the power to impact society through revolutionary applications. As the world heralds an era of FinTech, this chapter aims to give insights on the potential of FinTech and how it cross borders to change the lives of many.
Wearable Technology
Authors: Ntuli Esther , Godfrey Angie
Published: June 2019

Teacher questioning is integral to teaching and learning in mathematics classrooms. Research indicates that purposeful questioning in mathematics classrooms engages, motivates, and deepens student understanding and critical thinking during mathematical discussions. This chapter used both qualitative and quantitative approaches to examine the levels of questions and questioning strategies used by elementary teachers while facilitating mathematical tasks. Findings indicate that teachers use more funneling questions than focusing questions while facilitating math tasks. Most teachers hardly arrive at that reflection and justification level of questioning. Teachers found the Pivothead glasses to be effective not only for teacher self-assessment of their questioning techniques but also for gathering data on student thinking. Regression analysis indicates that education, experience, and location are the most important variables influencing the level of questions asked and questioning strategies used by the teachers.
IT-Driven Business Model Innovation
Authors: Müller Sune , Hundahl Mads
Published: June 2019

Information technology enables disruptive innovations, causing paradigm shifts in how companies do business. IT allows companies to break with traditional business models and management thinking. This article explores IT-driven business model innovations empirically by examining how 343 Danish companies use IT to innovate their existing businesses. This systematic review of extant literature using the Business Model Canvas as an analytical framework to answer the research question; how does IT drive business model innovation? Through an exploratory factor analysis this article observes the underlying structure of IT-driven business model innovation, identifying three innovation sources: customers, infrastructures, and supply chains. The three sources demonstrate where and how innovation is most likely to occur, and how it may spread to other parts of the business model. This paper presents a framework for understanding the impact of IT on business models, providing researchers and practitioners with empirically based knowledge on how to leverage IT for business model innovation.
Identification and Categorization of Disruptive Innovations According to the Strategic Scope of the Firm
Authors: Sabourin Vincent
Published: June 2019

The concept of innovation has for a long time been considered as the drive behind the ever-changing positions and functioning of the global community. Since the beginning of twenty-first century, creative individuals and entrepreneurs have without influence declined to accept the existing products and services as being the ultimate solution to challenges the society faces. This scholarly analysis builds on the theory of disruptive innovation to categorize and analyze the impact of disruptive innovations on key sectors of an economy in terms of their impact on the strategies and commercialization from a sectorial perspective. This analysis offers insightful information in terms of disruptive innovations which can be categorized into market-driven, product-driven, and competency-driven disruptive innovations.
Developing a Sustainable Urban Mobility Index
Authors: Shen Yongjun , Hermans Elke
Published: June 2019

Sustainability is a multi-dimensional concept that can be assessed by means of constructing a composite indicator or index. In doing so, a scientifically sound and appropriate index methodology is required. The research proposed in this chapter aims to provide a guideline for developing a sustainability index that is able to assess the impact of mobility on the urban quality of life. By studying the index development process in other domains critically and taking the specific sustainable urban mobility context into account, this study investigates the different methodological steps that are essential in the construction of a sustainable urban mobility index. The main challenges and potential options when developing such an index are discussed.
BLANC, Jacob; FREITAS, Frederico. Big Water: The Making of Borderlands Between Brazil, Argentina and Paraguay
Authors: Silva Micael Alvino
Published: June 2019

Big Water é um livro da estante dos Latin American Studies (DELPAR, 2008). Mais que isso, pretende definir os estudos sobre a tríplice fronteira entre Argentina, Brasil e Paraguai como um “novo campo de estudos históricos” (p. 9). Trata-se de um livro coletivo, organizado por Jacob Blanc (Universidade de Edimburgo) e Frederico Freitas (Universidade da Carolina do Norte), sobre “uma das áreas mais dinâmicas e menos estudada” da América Latina (p. 6).
Swede midge (Diptera: Cecidomyiidae) diapause initiation under stable conditions: not a family affair
Authors: Des Marteaux Lauren E. , Hallett Rebecca H.
Published: June 2019

Larvae of the swede midge,Contarinia nasturtii(Kieffer) (Diptera: Cecidomyiidae), rely on environmental cues to initiate the diapause programme. This facultative diapause strategy, which provides opportunities for both bet hedging and multivoltinism, likely contributed to the successful colonisation and spread of this invasive pest in North America. Population diapause incidence is variable even under relatively stable conditions (especially at the critical day length), yet the mechanisms influencing the developmental trajectory of individuals under such conditions are unknown. Here we approach the non-environmental (i.e., heritable) controls of this variation by comparing diapause frequencies within and among full-sibling swede midge families reared in one of two stable environments. Under warm, long-day conditions > 99% of swede midges pupated directly, while 86% of swede midges entered diapause under cool, short-day conditions. In the latter condition, most families exhibited mixed developmental trajectories (ranging from 36% to 96% diapause). This developmental variation among siblings indicates that the diapause induction threshold does not follow simple Mendelian inheritance with complete dominance for a particular allele, but may follow incomplete dominance or a more complex heredity. Alternatively, within-family diapause variation may result from maternal bet hedging or factors such as maternal age or larval nutrition.
Health and responsibility self-efficacy, self-care and self-responsibility
Authors: Eales C. J. , Stewart A. V.
Published: June 2019

Self-care and self-efficacy have been discussed in the medical, psychological and sociological literature (Bandura, 1977b; Barofsky, 1978; Hickey, 1988; Mahler and Kulik, 1990; Mahler, 1991). However neither of these two concepts accurately describe the behaviour required of a patient with a chronic disease to ensure the best outcome of medical treatment. The concept of self-responsibility seems to be more appropriate. This article presents the definitions of self-efficacy, self-care and self-responsibility. An argument why self-responsibility is of importance in patients who have undergone bypass surgery will be presented. Coronary artery disease is a chronic disease, for which CABG is indicated only in special cases. The surgical intervention is costly and the operative outcome will not be successful if the patient does not comply with lifestyle and risk factor modification. In a climate where health costs are under scrutiny and attempts are being made to make the available funding accessible to a greater percentage of the population, there is a moral responsibility for patients who have undergone expensive interventions to accept the responsibility for their rehabilitation to ensure the optimal outcome of these interventions.
Velocity-specific knee strength between professional and under-17 female volleyball player
Authors: Pelegrinelli Alexandre R.M. , Dela Bela Laís F. , Silva Mariana F. , Rodrigues Lucas C.R. , Batista João P. , Guenka Leandro C. , Dias Josilainne M. , Brown Lee E. , Carregaro Rodrigo L. , Moura Felipe A. , Cardoso Jefferson R.
Published: June 2019

Background: Many studies have investigated isokinetic performance in volleyball players but not through surface maps.Objectives: The goals of this study were to assess velocity-specific isokinetic knee extensor–flexor muscle strength and to compare the isokinetic knee extensor–flexor muscles between professional (PRO) and under-17 (U17) female volleyball players.Method: This cross-sectional laboratory study was developed with two groups: PRO (n = 12), medianage = 21.3 years, and U17 (n = 9), medianage = 15 years. Peak torque, total work, mean power, angle of peak torque, hamstring–quadriceps torque ratio (H–Q ratio) and torque–angle–velocity surface maps were analysed from knee extension–flexion at 60, 120 and 300 degrees per second (°/s).Results: Significant differences were identified for extensor peak torque between PRO x = 202.3 Newton metre (N·m) (standard deviation [SD] = 24.4) and U17 x = 141.6 N·m (30.1) at 60 °/s (p < 0.001; d = 2.21) as well as flexor peak torque (PRO x = 75.7 N·m [10.3] and U17 x = 57.7 N·m [11.4]) at 120 °/s (p < 0.001; d = 1.65) for the dominant limb. There were also significant group differences for total work and mean power at all velocities for extension and flexion. Surface maps demonstrated higher torque at lower speeds for both groups with smaller torque changes across velocities for flexion.Conclusion: Different groups of female volleyball players showed contrasting concentric knee muscle strength across isokinetic velocities.Clinical implications: These results demonstrate the importance of specific strength training for different age groups, even within the same sport, and provide insight into muscle strength.
Avaliação da concepção dos estudantes de medicina sobre as práticas médicas integrativas e complementares na Atenção Básica
Authors: Silva Giovanna Gomes e , Souza Ivete Moura Seabra de
Published: June 2019

Objetivo: Avaliar a concepção dos estudantes de medicina sobre as Práticas Integrativas e Complementares (PIC) da medicina na Atenção Básica. Método: A pesquisa é do tipo transversal, descritiva e quantitativa. A amostra foi constituída por 100 acadêmicos de Medicina, foram aplicados um questionário socioeconômico e um questionário sobre Práticas Integrativas e Complementares, para avaliar o conhecimento, a experiência e a opinião dos alunos sobre o uso das Práticas Integrativas e Complementares. Foi utilizada análise estatística descritiva, em termos de frequência e porcentagem. Resultados: Observou-se o predomínio do sexo feminino no grupo pesquisado. A média de idade foi de 22,93 anos. Predominou a religião “Católica” (52,17%) e a renda predominante foi de “Mais de 20 salários” para 40,21% dos participantes. Apesar de muitas escolas médicas não oferecerem na grade curricular a matéria sobre Práticas Integrativas e Complementares, a maioria dos alunos tem conhecimento do que se trata o tema e há progressivo interesse em aprender sobre as terapias complementares à medida que há aumento da demanda por essas práticas. Conclusão: Os resultados desta pesquisa evidenciaram que a maior parte dos alunos tem conhecimento sobre o tema abordado. E a maioria não tem preconceito com o uso de práticas, desde que este não cause malefícios ao paciente.
Condições de vida populacional e incidência de dengue no estado do Pará, Brasil
Authors: Chaves Emanuele Cordeiro , Costa Samara Viana , Flores Rute Leila dos Reis , Bernardes Arthur Carneiro
Published: June 2019

Objetivo: Analisar espacialmente a relação entre as condições de vida da população e sua relação com a incidência de dengue no Pará. Método: Trata-se de um estudo ecológico transversal, que teve como unidades de análise as Regiões de Integração do estado do Pará. A análise estatística foi realizada por meio das técnicas multivariadas análise fatorial e análise de correspondência. Resultados: De acordo com a classificação de risco, observa-se que 56 (42,75%) dos 143 municípios apresenta médio risco para dengue, destacando-se as Regiões de Integração do Araguaia, Guamá, Rio Capim e Tocantins. Os municípios com condição de vida ruim apresentaram baixa incidência de dengue, com probabilidade de 99,81%, enquanto que municípios com boa condição de vida geralmente possuem alta incidência de dengue, com probabilidade de 83,97%. Conclusão: Observou-se maior taxa de incidência de dengue nas regiões com melhores indicadores socioeconômicos.
Sibilância recorrente em lactentes no primeiro ano de vida em Belém (Pará, Brasil)
Authors: Prestes Elaine Xavier , Mallol Javier , Solé Dirceu
Published: June 2019

Objetivo: determinar a prevalência e os fatores de risco para sibilância recorrente em lactentes no primeiro ano de vida em Belém, Pará, Brasil. Método: Estudo transversal que utilizou o questionário escrito do Estudio Internacional de Sibilancias en Lactentes (EISL) para pais de lactentes de 12 a 15 meses, nas Unidades de Saúde de Belém, por ocasião de vacinação, entremaioeagosto de 2006. Utilizou-se o Teste t de Student na comparação de médias numéricas e estimação da razão de chances (RC), com intervalo de confiança 95%, e ajuste de modelo de regressão logística para avaliar fatores de risco ou proteção com nível de significância de 5%. Resultados: 3.024 crianças participaram do estudo. A prevalência de sibilância recorrente nesses lactentes foi de 21,9%. Os fatores de risco para sibilância recorrente no primeiro ano de vida foram: gênero masculino, infecção de vias aéreas, infecção de vias aéreas antes de cinco meses de idade, raça negra, exposição à poluição atmosférica, história familiar de asma e rinite, dermatite atópica pessoal. Ter o calendário vacinal atualizado e ter seis meses de idade ou mais na primeira infecção foram fatores de proteção. Conclusão: a prevalência de sibilância recorrente é elevada em Belém e seus fatores de risco estão ligados a genética e fatores ambientais. Prevenir infecção de vias aéreas em lactente jovem e controlara poluição ambiental pode minimizar a doença sibilante.
Estimation of rate coefficients and branching ratios for reactions of organic peroxy radicals for use in automated mechanism construction
Authors: Jenkin Michael E. , Valorso Richard , Aumont Bernard , Rickard Andrew R.
Published: June 2019

Abstract. Organic peroxy radicals (RO2), formed from the degradation of
hydrocarbons and other volatile organic compounds (VOCs), play a key role in
tropospheric oxidation mechanisms. Several competing reactions may be
available for a given RO2 radical, the relative rates of which depend
on both the structure of RO2 and the ambient conditions. Published
kinetics and branching ratio data are reviewed for the bimolecular reactions
of RO2 with NO, NO2, NO3, OH and HO2; and for their
self-reactions and cross-reactions with other RO2 radicals. This
information is used to define generic rate coefficients and
structure–activity relationship (SAR) methods that can be applied to the
bimolecular reactions of a series of important classes of hydrocarbon and
oxygenated RO2 radicals. Information for selected unimolecular
isomerization reactions (i.e. H-atom shift and ring-closure reactions) is
also summarized and discussed. The methods presented here are intended to
guide the representation of RO2 radical chemistry in the next
generation of explicit detailed chemical mechanisms.
Evaluating different methods for elevation calibration of MAX-DOAS instruments during the CINDI-2 campaign
Authors: Donner Sebastian , Kuhn Jonas , Van Roozendael Michel , Bais Alkiviadis , Beirle Steffen , Bösch Tim , Bognar Kristof , Bruchkousky Ilya , Chan Ka Lok , Drosoglou Theano , Fayt Caroline , Frieß Udo , Hendrick François , Hermans Christian , Jin Junli , Li Ang , Ma Jianzhong , Peters Enno , Pinardi Gaia , Richter Andreas , Schreier Stefan F. , Seyler André , Strong Kimberly , Tirpitz Jan-Lukas , Wang Yang , Xie Pinhua , Xu Jin , Zhao Xiaoyi , Wagner Thomas
Published: June 2019

Abstract. We present different methods for in-field elevation calibration of MAX-DOAS (Multi AXis Differential Optical Absorption Spectroscopy) instruments that were applied and inter-compared during the second Cabauw Intercomparison campaign for Nitrogen Dioxide measuring Instruments (CINDI-2). One necessary prerequisite of consistent MAX-DOAS retrievals is a precise and accurate calibration of the elevation angles of the different measuring systems. Therefore, different methods for this calibration were applied to 12 instruments from 11 groups during the campaign and the results were inter-compared. This work first introduces and explains the different methods, namely far and near lamp measurements, white/bright stripe scans and horizon scans, using data and results for only one (mainly the MPIC) instrument. In the second part, the far lamp measurements and the horizon scans are examined for all participating groups. Here, the results for both methods are first inter-compared for the different instruments and secondly, the two methods are compared amongst each other. All methods turned out to be well-suited for the calibration of the elevation angles of MAX-DOAS systems, with each of them having individual advantages and drawbacks. Considering the results of this study, the uncertainties of the methods can be estimated as ± 0.05° for the far lamp measurements, ± 0.1° to ± 0.3° for the horizon scans, and around ± 0.1° for the white stripe and near lamp measurements. When comparing the results of far lamp and horizon scan measurements, a spread of around 1° in the elevation calibrations is found between the participating instruments for both methods. This spread is on the order of a typical field of view (FOV) of a MAX-DOAS instrument and therefore, affecting the retrieval results. Further, a consistent (wavelength dependent) offset of 0.31° and 0.40° between far lamp measurements and horizon scans is found, which can be explained by the fact that, despite the flat topography around the measurement site, obstacles such as trees might mark the visible horizon during daytime. The observed wavelength dependence can be explained by surface albedo effects. Lastly, the results are discussed and recommendations for future campaigns are given.
Evaluation of MOPITT version 7 joint TIR-NIR XCO retrievals with TCCON
Authors: Hedelius Jacob K. , He Tai-Long , Jones Dylan B. A. , Buchholz Rebecca R. , De Mazière Martine , Deutscher Nicholas M. , Dubey Manvendra K. , Feist Dietrich G. , Griffith David W. T. , Hase Frank , Iraci Laura T. , Jeseck Pascal , Kiel Matthäus , Kivi Rigel , Liu Cheng , Morino Isamu , Notholt Justus , Oh Young-Suk , Ohyama Hirofumi , Pollard David F. , Rettinger Markus , Roche Sébastien , Roehl Coleen M. , Schneider Matthias , Shiomi Kei , Strong Kimberly , Sussmann Ralf , Sweeney Colm , Té Yao , Uchino Osamu , Velazco Voltaire A. , Wang Wei , Warneke Thorsten , Wennberg Paul O. , Worden Helen M. , Wunch Debra
Published: June 2019

Abstract. Observations of carbon monoxide (CO) from the Measurements Of Pollution In The Troposphere (MOPITT) instrument onboard the Terra spacecraft were expected to have an accuracy of 10 % prior to launch in 1999. Here we evaluate MOPITT version 7 joint TIR-NIR (V7J) accuracy and precision, and suggest ways to further improve the accuracy of the observations. We take five steps involving filtering or bias corrections to reduce scatter and bias in the data relative to other MOPITT soundings, and ground based measurements. 1) We apply a preliminary filtering scheme in which measurements over snow and ice are removed. 2) We find a systematic pairwise bias among the four MOPITT along-track detectors (pixels) on the order of 3–4 ppb with a small temporal trend, which we remove on a global scale using a temporally trended bias correction. 3) Using a small region approximation (SRA) a new filtering scheme is developed and applied based on additional quality indicators such as signal-to-noise. After applying these new filters, the root mean squared error computed using the local median from the SRA over 16 years of global observations decreases from 3.84 ppb to 2.55 ppb. 4) We also use the SRA to find variability in MOPITT retrieval anomalies that relates to retrieval parameters. We apply a bias correction to one parameter from this analysis. 5) After applying the previous bias corrections and filtering, we compare the MOPITT results with the GGG2014 ground-based Total Carbon Column Observing Network (TCCON) observations to obtain an overall global bias correction. These comparisons show that MOPITT V7J is biased high by about 6–8 %, which is similar to past studies using independent validation datasets on V6J. When using TCCON spectrometric column retrievals without the standard airmass correction or scaling to aircraft (WMO scale), the ground and satellite based observations overall agree to better than 0.5 %. GEOS-Chem data assimilations are used to estimate the influence of filtering and scaling to TCCON on global CO, and tend to pull concentrations away from the prior, and closer to the truth. We conclude with suggestions for further improving the MOPITT data products.
A combined Terra/Aqua MODIS snow-cover and RGI6.0 glacier product (MOYDGL06*) for the High Mountain Asia between 2002 and 2018
Authors: Muhammad Sher , Thapa Amrit
Published: June 2019

Abstract. Snow is a significant component of the ecosystem and water resources in the High Mountain Asia (HMA). Accurate, continuous and long-term snow monitoring is necessary for water resources management and economic development. In this study, we improved Moderate-resolution Imaging Spectroradiometer (MODIS) onboard Terra and Aqua snow–cover for HMA by a multi-step approach. The primary purpose of this study was to reduce uncertainty in MODIS snow cover. For reducing underestimation mainly caused by cloud cover, we used seasonal, temporal, and spatial filters. For reducing overestimation caused by MODIS sensor, we combined MODIS Terra and Aqua snow-cover products considering snow only if a pixel is snow in both the products otherwise no snow, unlike some previous studies considering snow if any of the Terra or Aqua product is snow. Our methodology generates a new product which removes a significant amount of uncertainty in raw MODIS 8-day composite product comprising 46 % overestimation and 3.66 % underestimation, mainly caused by sensor limitations and cloud cover, respectively. The results were validated using Landsat 8 data as ground truth, both for winter and summer at twenty well-distributed sites in the study area. Our validation results show that the adopted methodology improved accuracy on average by 10 %, mainly reducing the snow overestimation. The final product covers the period from 2002 to 2018, as a combination of snow and glaciers created by merging RGI6.0 glacier boundaries separately debris-covered and debris-free to the final snow product namely MOYDGL06*. Each of the Terra and Aqua datasets contains seven hundred and forty-six image files derived initially from approximately one hundred thousand satellite individual images. The data is available for researchers to use for various climate and water-related studies. The data is available at https://doi.org/10.1594/PANGAEA.901821 (Muhammad and Thapa, 2019).
PRECISE DISPARITY ESTIMATION FOR NARROW BASELINE STEREO BASED ON MULTISCALE SUPERPIXELS AND PHASE CORRELATION
Authors: Ye Z. , Xu Y. , Hoegner L. , Tong X. , Stilla U.
Published: June 2019

Abstract. With the rapid development of subpixel matching algorithms, the estimation of image shifts with an accuracy of higher than 0.05 pixels is achieved, which makes the narrow baseline stereovision possible. Based on the subpixel matching algorithm using the robust phase correlation (PC), in this work, we present a novel hierarchical and adaptive disparity estimation scheme for narrow baseline stereo, which consists of three main steps: image coregistration, pixel-level disparity estimation, and subpixel refinement. The Fourier-Mellin transform with subpixel PC is used to co-register two input images. Then, the pixel-level disparities are estimated in an iterative manner, which is achieved through multiscale superpixels. The pixel-level PC is performed with the window sizes and locations adaptively determined according to superpixels, with the disparity values calcualted. Fast weighted median filtering based on edge-aware filter is adopted to refine the disparity results. At last, the accurate disparities are calculated via a robust subpixel PC method. The combination of multiscale superpixel hierarchy, adaptive determination of the window size and location of correlation, fast weighted median filtering and subpixel PC make the proposed scheme be able to overcome the issues of either low-texture areas or fattening effect. Experimental results on a pair of UAV images and the comparison with the fixed-window PC methods, the iterative scheme with fixed variation strategy, and a sophisticated implementation using global optimization demonstrate the superiority and reliability of the proposed scheme.
MONITORING OF EGYPTIAN COASTAL LAKES USING REMOTE SENSING TECHNIQUES
Authors: Donia N. S. , Farag H.
Published: June 2019

Abstract. The Northern Lakes play a significant role in Egyptian economy for fish production in Egypt. Until 1991, these Lakes have always contributed more than 40% of the country's total fish production, but at present this has decreased to less than 12.22% as they serve as reservoirs for drainage waters, which contaminated with anthropogenic materials. Since Remote sensing and GIS are suitable and valuable techniques to identify the rate of land reclamation of the coastal lakes over the last three decades. This was undertaken using different kinds of imagery to employ historical remotely sensed data to reveal the long-term changes in the physical characteristics of the lagoon. This paper explains how remote sensing coupled with GIS can be used for lake monitoring applied on some Egyptian coastal lakes as example.
SEMANTIC SEGMENTATION OF INDOOR 3D POINT CLOUD WITH SLENET
Authors: Ding Y. , Zheng X. , Xiong H. , Zhang Y.
Published: June 2019

Abstract. With the rapid development of new indoor sensors and acquisition techniques, the amount of indoor three dimensional (3D) point cloud models was significantly increased. However, these massive “blind” point clouds are difficult to satisfy the demand of many location-based indoor applications and GIS analysis. The robust semantic segmentation of 3D point clouds remains a challenge. In this paper, a segmentation with layout estimation network (SLENet)-based 2D–3D semantic transfer method is proposed for robust segmentation of image-based indoor 3D point clouds. Firstly, a SLENet is devised to simultaneously achieve the semantic labels and indoor spatial layout estimation from 2D images. A pixel labeling pool is then constructed to incorporate the visual graphical model to realize the efficient 2D–3D semantic transfer for 3D point clouds, which avoids the time-consuming pixel-wise label transfer and the reprojection error. Finally, a 3D-contextual refinement, which explores the extra-image consistency with 3D constraints is developed to suppress the labeling contradiction caused by multi-superpixel aggregation. The experiments were conducted on an open dataset (NYUDv2 indoor dataset) and a local dataset. In comparison with the state-of-the-art methods in terms of 2D semantic segmentation, SLENet can both learn discriminative enough features for inter-class segmentation while preserving clear boundaries for intra-class segmentation. Based on the excellence of SLENet, the final 3D semantic segmentation tested on the point cloud created from the local image dataset can reach a total accuracy of 89.97%, with the object semantics and indoor structural information both expressed.
PLACEMENT OPTIMIZATION OF POSITIONING NODES: MAXIMIZING THE DISTINCTION OF INDOOR ZONES
Authors: Xenakis D. , Meijers M. , Verbree E.
Published: June 2019

Abstract. The performance of an indoor positioning system is highly related to the placement of the transmitting nodes that are used as references for the positioning estimations. In this paper, we propose a methodology that can be used to optimize such a deployment and thus, increase the performance of an indoor positioning system that a) is based on Received Signal Strength (RSS) fingerprinting and b) is orientated towards providing location or zone estimations instead of exact positioning. The optimization process involves 4 fundamental components. Firstly, the modelling of the obstructions in the indoor environment and also the zone modelling. Then, the definition of the performance metric that can be used to evaluate each different deployment scenario, in which case, our proposed metric considers the separation area and distances between the zones in the RSS vector space. The third component is the radio propagation model, required for simulating the RSSs from each node, where a model based on the ray tracing technique is selected. Finally, the last component is the selection of the optimization function that will control and drive the whole optimization process by selecting which deployment schemes to evaluate. For that, the utilization of a Genetic Algorithm is proposed. Although the evaluation of this methodology is outside the paper’s scope, the key factors affecting the optimization performance the most, are expected to be a) the accuracy of the used indoor model and radio propagation model and b) the exact implementation of the optimization function.
Numerical analysis of the influence of the damping rings' thickness on interrupted dynamic tension results using SiC-reinforced ZC71 magnesium alloy specimens
Authors: González-Lezcano Roberto-Alonso , del Río Campos José-Manuel
Published: June 2019

Abstract. This article discusses the influence of the thickness of the damping rings
used for interrupting a dynamic tension experiments on the results of a
modified split Hopkinson tension bar (SHTB). In this paper a device enclosed
in an external fixture used for interrupting a dynamic tension experiment in
a SHTB is studied. The novelty of this manuscript with respect to previous
studies lies in the fact that the dynamic tension experiment in a SHTB is
interrupted in order to study the mechanical behavior of the material at
high strain rates. The role played by such device is to interrupt the
experiment at different levels of plastic deformation, particularly when the
specimen is about to reach its failure strength. Finite-element (FE)
simulations of high-strain-rate tension experiments are accomplished on a
particle-reinforced metal matrix composite specimen (namely SiC-reinforced
ZC71 magnesium alloy) when varying the thickness of the damping rings.
Interrupting the test before the specimen breaks offers the possibility of
being able to study in a more detailed way the deformation process of such
material at high strain rates. Therefore, this work focuses on the study of
the behaviour of materials undergoing high strain rates, developing a tool
which allows materials to withstand different levels of strain rates in a
controlled manner and providing guidance for future studies. In view of this
research, it can be concluded that the thickness of the damping rings is a
factor that can resolutely influence the interrupted dynamic tension
experiment results avoiding the specimen's failure by optimally buffering
the experiment using 0.8 mm thick lead damping rings.
Economic Simulation of Cryptocurrencies and Their Control Mechanisms
Authors: Mainelli Michael R. , Leitch Matthew , Demetis Dionysios
Published: June 2019

A cryptocurrency needs a relatively stable value if it is to fulfill the traditional functions of money and be useful as a currency. To achieve this, controls are needed within the ecosystem of the cryptocurrency. Although a simulation cannot predict future currency rates or other variables exactly, it is argued that a model that simulates a range of challenging behavior can be a useful testbed for control schemes. To illustrate and explore this idea, an agent-based economic model was used to simulate the early period of a hypothetical cryptocurrency and test two control mechanisms. The results suggest that this approach may be fruitful and that it may be important to include more than just coin minting within the control scheme. An economic simulation model is likely to be a valuable tool in developing and regulating effective cryptocurrency systems.
Expediente Vol. 33 n. 1
Authors: Justica do Direito Revista
Published: June 2019

Expediente Vol. 33 n. 1
La memoria de las plantas: sobre el devenir atm´ósfera
Authors: Cortez Beatriz
Published: June 2019

This article deals with memory, but not as historical memory, the one inscribed in spaces predetermined by State Institutions. It proposes to see memory as something capable of streteching temporalities from the past towards the future, capable of carrying with it polyphonies, textualities and languages, as well as different matters and states. It is a nomadic memory that opens up posibilities to think of a post-human memory, that existed in the past and that existits in the present, but that proyects itself to a future beyond the Anthropocene, a future without humans.
Realidad: Revista de Ciencias Sociales y Humanidades No. 152, 2018: 113-124
Discutindo a erotização na infância: implicações da sociedade de consumo na construção da rotina infantil nas instituições escolares
Authors: Platt Adreana Dulcina , Oliveira Marta Regina Furlan de
Published: June 2019

Este artigo objetiva discutir sobre a erotização da infância no contexto da sociedade do consumo que, de maneira ampla, contribui no processo de formação humana dos sujeitos envolvidos e, analisar os impactos no processo formativo das crianças na educação infantil. A sociedade do consumo amplia cada vez mais a sua atuação sobre os indivíduos e, no caso das crianças, a cooptação precoce acentua seu poder de influência e sedução dos pequenos que se encontram em processo de desenvolvimento de sua identidade e autodeterminação; necessitando, desse modo, de um trabalho formativo crítico e consistente desde a mais tenra idade. O estudo bibliográfico utiliza-se de Aquino (1998), Arendt (2013), Dozol (2007), Lipovetsky (2007), Lukács (1978), Moreira (2003), Saviani (1991) e outras leituras secundárias. Como resultado, as crianças precisam de educadores fundamentados pelo conhecimento e crítica no sentido de mediar tais informações que são dispostas ao público infantil, pelo processo do ensino.
Subjetividade docente e diálogos com a infância: encontros, escutas e educação
Authors: Díaz Diego Barrios , Tacca Maria Carmen
Published: June 2019

O objetivo deste artigo é discutir, a partir de um estudo de caso, os processos subjetivos que configuram a formação e a prática docente na educação infantil. Adotamos a perspectiva teórica da subjetividade, de González Rey, como recurso que possibilita pensar as motivações e posicionamentos do professor diante de sua prática e formação docente. O estudo de caso se desenvolve nos limites da metodologia construtiva e interpretativa de González Rey. Evidenciamos processos sociais que ocorrem no contexto escolar e o transformam em um terreno fértil e aberto a possibilidades de aprendizagem para professores no curso das relações sociais vividas nesse espaço.
A política de educação infantil em Alagoas: contrapontos da legitimação de um direito
Authors: Prado Edna Cristina do , Rocha Idnelma Lima da
Published: June 2019

Este estudo tem como objeto a política de educação infantil no estado de Alagoas, considerando como se tem instituído o direito à educação das crianças de 0 a 5 anos, a partir dos instrumentos legais vigentes, da política de municipalização e do caráter de atendimento deles resultante. O caminho teórico-metodológico adotado é de natureza bibliográfica e documental, por meio do qual se discutem os fundamentos históricos, culturais e políticos que orientam as políticas educacionais para a primeira infância nesse Estado. As conclusões assentam que, em Alagoas, a educação infantil não tem sido devidamente priorizada pelo poder público responsável, ferindo o direito constitucional de educação e cuidado das crianças de 0 a 5 anos.
La colonialidad del poder y la alteridad en la política de educación superior en Colombia (1992-2018)
Authors: Cmhorta Carolina Horta
Published: June 2019

Este artículo tiene por objetivo analizar la colonialidad del poder y la alteridad en la política de educación superior en Colombia, 1992-2018. El uso del método de investigación documental y el análisis crítico del discurso comprende que muchas de las políticas públicas de educación superior en Colombia tienen la intensión de homogenizar las clases sociales y acabar con la alteridad en el país. El artículo concluye diciendo que la política de educación superior en Colombia más que promover la movilización social del conocimiento se está convirtiendo en un cuartel de la nobleza que reproduce campos de luchas entre clases sociales.
Apresentação do Dossiê Universidade, Ciência e Tecnologia e Mobilização do Conhecimento
Authors: Monfredini Ivanise , Naidorf Judith
Published: June 2019

Universidade, instituição secular sobre a qual já se atribuíram diversos significados sociais, modelos de organização e atuação, abriga práticas diversas, base de sua renovação. Em que pesem a diversidade de significados e propostas para a universidade, prevalece um determinado consenso quanto à ideia de que cabe a essa instituição produzir conhecimento relevante, que contribua com o desenvolvimento do país e que beneficie a população. Na América Latina, a universidade tem se dedicado, especialmente, à formação profissional, constituindo-se ao longo dos séculos em espaço de ensino, mas também se tornou o principal locusde produção científica e tecnológica. Apesar disso, a partir das contrarreformas, a universidade latino-americana se converteu em alvo das críticas ‘neoliberais’ de que a ela caberia aprofundar ainda mais o compromisso com a produção científica, com base no que se institucionalizaram políticas de financiamento e avaliação que impuseram novos tempos e espaços para a pesquisa, a docência e a extensão. Diante do profundo processo de remodelação porque passaram (e passam) as universidades, a docência, por exemplo, parecia perder crescentemente espaço para o produtivismo científico vazio. No atual momento histórico, que é de aprofundamento das contrarreformas e de brutal desmonte do financiamento público, outras questões são suscitadas sobre a significação social dessa instituição. Em que pesem as críticas feitas no passado, a universidade latino-americana é responsável pela maior parte da produção científica e tecnológica dos países da região. Esse conjunto de conquistas históricas - universidade de ensino e de pesquisa - passa por sério processo de desmonte. Os autores que participam deste Dossiê se propõem a discutir a universidade trazendo elementos que contribuam não apenas com o diagnóstico, mas também com a constituição de alternativas na região a partir da ideia de mobilização do conhecimento.
Bond strength of orthodontic adhesives
to dry and saliva-moistened enamel –
a comparative in vitro study
Authors: Stefański T. , Kloc-Ptaszna A. , Postek-Stefańska L.
Published: June 2019

salivamoistened
enamel.
Design/methodology/approach: One hundred twenty stainless steel brackets were
bonded to human mandibular third molars with six materials: Enlight LC® (Ormco Corp),
Grengloo® (Ormco Corp), Light Bond® (Reliance Orthodontic Products), Charisma®
(Heraeus Kulzer), SmartBond® (Gestenco), and Transbond XT® with MIP® primer (3M
Unitek). One half of the specimens in each group (n=10) was bonded to dry enamel, while
the other half to saliva-moistened enamel. Bond strength testing was performed with a
wire loop loading technique after 30-min incubation in artificial saliva. Failure mode was
evaluated using adhesive remaining index (ARI).
Findings: No significant differences in bond strength to dry enamel were noted for all
composite materials (p>0.05). SmartBond exhibited significantly greater bond strength
to moistened enamel (7.10 ± 1.47 MPa) and comparable with other composite materials
to dry enamel. Composite materials demonstrated significantly reduced bond strength to
saliva-moistened enamel (p<0.001), except for Transbond MIP, whose bond strength was
not significantly decreased by saliva contamination (p=0.089). There was not statistically
significant difference between bond strength of SmartBond and Transbond to saliva
contaminated enamel. A higher incidence of cohesive failures was noted for all materials.
Research limitations/implications: Composite light-cured materials provide adequate
bond strength to dry enamel. Cyanoacrylate adhesive provides sufficient bond strength only
under moist conditions. Transbond XT+MIP has sufficient bond strength to either dry or
saliva-moistened enamel.
Practical implications: The study evaluated the bonding strength of orthodontic brackets,
which is a critical parameter in orthodontics, especially in situations that do not allow for
proper isolation from saliva, such as bonding to impacted teeth following surgical exposure.
Originality/value: Bond strengths evaluated with loop loading technique in different study
environments would help the orthodontist to choose the most effective adhesive for the
specific clinical situation.
Pflege in Zeiten der Ökonomisierung
Authors: Auth Diana
Published: June 2019

Die Pflege hat sich mittlerweile zu einem der wichtigsten und auch konfliktträchtigsten sozialpolitischen Bereiche entwickelt. Kontext der »Care-Krise« bzw. des »Pflegenotstands« sind zum einen der demographische Wandel, demzufolge die Zahl der Pflegebedürftigen weiter steigen wird, zum anderen der Rückgang des sog. häuslichen Pflegepotentials, v.a. durch die steigende Frauenerwerbstätigkeit. Beide gesellschaftlichen Prozesse zusammen machen deutlich, dass die bislang dominierende häuslich-familiäre Pflege an ihre Grenzen stößt.