bluuebunny/crossref_metadata_2025_split huggingface dataset:
Screening for Myopia-Related Retinal Changes Among Teenagers
Authors: Allon Gilad , Machluf Yossy , Mezer Eedy , Chaiter Yoram 
Published: November 2019

BACKGROUND AND OBJECTIVE:
To evaluate the relationship between spherical equivalent (SE) refractive error and myopia-related peripheral retinal changes (MPRCs) and to find the optimal cutoff for screening myopic teenagers.

PATIENTS AND METHODS:
The study included 2,286 myopic subjects who had a dilated fundus examination between 1998 and 2011 and SE of −4.0 diopters (D) or higher in both eyes.

RESULTS:

Ninety-five subjects (4.16%) had MPRCs. Two subjects (0.09%) had moderate-to-severe MPRCs. A significant correlation (
P
< .0001) between SE and MPRC was found. The highest sum of sensitivity (72.63%) and specificity (73.44%) was achieved when a SE of −6.25 D in the more myopic eye was utilized as the cutoff.

CONCLUSIONS:
SE and MPRCs are highly associated. The optimal cutoff to detect MPRC in teenagers is −6.25 D. However, using a SE of −4.0 D as the cutoff may be the practical choice for screening due to the noninvasiveness nature and low cost of the examination.

[
Ophthalmic Surg Lasers Imaging Retina.
2019;50:e311–e319.]
La toiture en remploi : charpente et couvertures de la cathédrale Saint-Pierre de Lisieux
Authors: Aumard Sylvain , Épaud Frédéric 
Published: November 2019

En préalable d’un chantier de restauration des toitures de la cathédrale Saint-Pierre de Lisieux, une étude a été réalisée sur la charpente du déambulatoire ainsi qu’une évaluation du potentiel
archéologique de l’ensemble des couvertures de l’édifice. Étudiés auparavant, les ouvrages coiffant le grand comble
datent de la fin du xiie et du début du xiiie siècle, formant un des ensembles les
mieux conservés pour cette période. Le relevé et les datations dendrochronologiques ont montré que la charpente du déambulatoire fut
entièrement reconstruite en 1763 en réemployant de nombreux bois des
charpentes antérieures, dont celle d’origine, à demi-fermes et pannes,
datée de 1218. Les autres réemplois témoignent d’un premier
remaniement des toitures du déambulatoire en 1380, et d’un second en 1437-1442. Par
ailleurs, l’examen systématique des couvertures a montré que les
toitures de la nef et du bras nord du transept conservaient encore
plusieurs milliers de tuiles médiévales. Dépourvues de crochet, ces dernières sont dans leur grande majorité simplement
dotées de larges perforations et d’un pureau glaçuré. Leur datation
n’est pas établie, mais la fin du xiie et
le début du xiiie siècle sont fortement
envisagés. Avec les charpentes, il s’agirait actuellement d’un des
corpus archéologiques les mieux préservés pour appréhender la
connaissance des couvertures médiévales en contexte monumental.
Potencializando a educação crítica por meio de práticas culturais na penitenciária industrial Esmeraldino Bandeira
Authors: Maia Viviane de Souza Barbosa , Faceira Lobelia da Silva 
Published: November 2019

O artigo tem como objetivo analisar a cultura como instrumento de potencialização da consciência crítica, capaz de resistir aos processos de controle e domínio ideológicos produzidos pela instituição prisão. A prisão consiste no que Goffman (1987) chamou de instituição total, lugar fechado e formalmente administrado que, ao separar indivíduos de suas relações sociais produz barreiras subjetivas. A pesquisa é de natureza qualitativa, uma vez que problematiza aspectos da vida social, que não podem se restringir a análise quantitativa dos dados, mas prioriza a complementaridade. As técnicas de construção de dados foram a entrevista semiestruturada, a observação participante, análise documental, revisão da literatura gramsciana sobre Ideologia, Hegemonia e Cultura. A pesquisa utilizou como técnica de análise de dados a análise de discurso francesa, um mecanismo que entende o discurso como uma prática social, Foi por meio da análise de discurso que se buscou compreender de modo crítico a resistência da cultura frente aos rebatimentos subjetivos ocasionados pela instituição prisão, suas manifestações e contradições no âmbito da Execução Penal e da ausência do Estado Social ou de direito. Nesse sentido, a cultura passa a ser compreendida como “instrumento” de memória e identidade, possível para apreender a prisão como um espaço “sem muros” que pode ser preenchido de luta e resistência no processo de construção da cidadania.
FORMAÇÃO DE GRUPOS DE ESTUDOS COM PROFESSORES DOS ANOS INICIAIS DO ENSINO FUNDAMENTAL NA PERSPECTIVA DA ETNOMATEMÁTICA
Authors: Giongo Ieda Maria , Peransoni Ademir de Cássio Machado , Quartieri Marli Teresinha 
Published: November 2019

A presente pesquisa, desenvolvida na Univates – RS, com apoio da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes), conforme Edital INEP CAPES 049/2012 - tem por objetivo central investigar as implicações pedagógicas advindas das discussões efetivadas em dois grupos de estudos com professores dos Anos Iniciais do Ensino Fundamental, tendo como aporte teórico o campo da etnomatemática. O material de pesquisa foi gerado por meio das discussões, gravadas e posteriormente transcritas, com professores de turmas de 4º e 5º anos de duas escolas públicas da região do Vale do Taquari, RS, bem como suas produções textuais escritas durante a realização de encontros dos dois grupos de estudos formados. A análise do referido material permitiu constituir as seguintes unidades de análise: a) Apego ao Formalismo Matemático por parte dos professores integrantes do grupo de estudo; b) Reconhecimento, paulatino, desses docentes, da existência de jogos de linguagem matemáticos não escolares.
Active Power Filter Shape Class Model Predictive Controller tuning by Multiobjective Optimization
Authors: Cateriano Yáñez Carlos , Richter Jörg , Pangalos Georg , Lichtenberg Gerwald , Sanchís Saez Javier 
Published: November 2019

As the share of renewable energy sources (RES) in distribution grids increases, several power quality challenges arise. Due to its intermittent nature, RES lead to voltage and frequency fluctuations in the grid that affect power quality. Moreover, as RES are connected via power converters, there is also a higher harmonic distortion pollution introduced by the switching power electronics involved, (Liang, 2017). A proven solution is the implementation of Active Power Filters (APF), which are able to compensate the unbalanced, harmonic, and reactive components of a load under different supply conditions. In order to achieve the desired compensation characteristics, the selection of an appropriate control strategy is critical, (Kumar &amp; Mishra, 2016). Classic APF control strategies achieve said goals, although with struggles under changing load scenarios with limitations on their operational modes, (Weihe, Cateriano Yáñez, Pangalos, &amp; Lichtenberg, 2018).This paper proposes the use of an advanced model-based control method, i.e. Model Predictive Control (MPC), to improve the performance of APF devices. Model-based control methods allow for better performance when the model of the plant is known before hand or through measurements, the MPC extends this further by introducing a cost function that ensures optimal operation even under constraints, (Maciejowski, 2002). References Kumar, P., &amp; Mishra, M. K. (2016). A comparative study of control theories for realizing APFs in distribution power systems. 2016 National Power Systems Conference (NPSC), 1–6. https://doi.org/10.1109/NPSC.2016.7858905 Liang, X. (2017). Emerging Power Quality Challenges Due to Integration of Renewable Energy Sources. IEEE Transactions on Industry Applications, 53(2), 855–866. https://doi.org/10.1109/TIA.2016.2626253 Maciejowski, J. M. (2002). Predictive Control with Constraints. Pearson education. Weihe, K., Cateriano Yáñez, C., Pangalos, G., &amp; Lichtenberg, G. (2018, July). Comparison of Linear State Signal Shaping Model Predictive Control with Classical Concepts for Active Power Filter Design. 167–174. Retrieved from http://www.scitepress.org/PublicationsDetail.aspx?ID=QatbWGUbqSE=&amp;t=1
How to scale the societal impact of work integration social enterprises? Evidence from The Netherlands
Authors: De Bell Leendert , Drupsteen Linda 
Published: November 2019

The number of social enterprises is increasing rapidly. Social enterprises are looking for new, innovative and economically sustainable ways to tackle structural societal challenges that generally fall outside the direct focus and objectives of the public and private sector. Social enterprises are primarily mission-driven, where profit is not a goal in itself but a means of creating social impact with regard to a specific social problem. The intended impact areas of social enterprises broadly range from poverty reduction, sustainability, healthcare, or labor participation of vulnerable groups. With respect to the latter impact area, many initiatives have been taken across Europe to prevent and combat marginalization of vulnerable groups as a result of long unemployment spells, which may cause financial and social pressure, as well as decay of physical and psychological health conditions. Nevertheless, the nature and extent of these initiatives vary considerably across countries (CEDEFOP, 2018). Social enterprises, in collaboration with other relevant stakeholders such as ‘conventional’ companies or local governments, can play a key role in addressing these challenges. This proposal builds on research that was completed earlier this year at HU concerning the scaling of social enterprises with a particular focus on work integration of people with a distance to the labor market (so-called WISEs) (e.g. people with low qualifications, young people disengaged from education, people with mental or physical disabilities, refugees, former prisoners, former addicts, or people who have difficulties finding a job due to their age etc.). One of the outcomes of this research showed that it is difficult for WISEs to transcend its societal impact beyond the local level. In practice, the effective realization of both social and economic value is not easy for many WISEs, but the interaction with and between different actors in the external environment or ecosystem also plays a crucial role in its success. More research is needed on what works in successfully addressing the work integration of vulnerable groups in different parts of Europe, and under what conditions. The aim is to come to a joint EU research proposal, in which WISEs play a central role, to contribute to innovative and more structural solutions for labor participation of vulnerable groups.
Arduino-based prototype to estimate heat stress indices in urban environments
Authors: Vargas-Salgado Carlos , Montuori Lina , Bastida-Molina Paula , Alfoso-Solar David 
Published: November 2019

Thermal comfort indices are normally used for assessing and controlling heat stress conditions in both: insides and outsides environment. In this paper, the results of the design and test of an Arduino-base prototype for estimating heat stress index is presented. This prototype allows the accurate detection of wind speed, air temperature, relative humidity, precipitation, atmospheric pressure, irradiation and globe temperature. By means of these parameters, it is possible to obtain indices such as mean radiant temperature (MRT) and wet bulb globe temperature (WBGT). As a result, the indices are estimated, storage in a database and analyzed. These values will be used in the future to measure the mitigation of heat stress in urban environments, by means of the construction of green facades and green roof or tree planting.
Theoretical and Empirical Background for a Higher Education Model of Active Community Learning
Authors: Pusztai Gabriella , Demeter-Karászi Zsuzsanna , Szűcs Tímea 
Published: November 2019

Higher Education Research and Development Center (CHERD) at the University of Debrecen performed several basic and applied research on Higher Education. Debrecen is a typical regional HE institution with international attraction in the peripheral area of EU. We performed a series of student surveys during the last decade, and we had the opportunity to reveal the process of gaining ground of non-traditional students in HE. Our center provides an inspiring context for researchers, where they have opportunity to discuss their formulating new research directions and to interpretat data and research results together. The Center supports talent esplorations and -development. Both MA/PhD students and researchers with great experience work together as a learning community. Thus, the mutual transfer and exchange of experience makes possible a continuous teaching-learning process during the research. Further more the concentration of professional development increases a special form of social capital.
Split-Ticket Voting in Belgium
Authors: Valcke Tony , Verhelst Tom 
Published: November 2019

Split-Ticket Voting in Belgium
This article tackles the particular issue of split-ticket voting, which has been largely overlooked in Belgian election studies thus far. We contribute to the literature by answering two particular research questions: (1) to what extent and (2) why do voters cast a different vote in the elections for the provincial council as compared to their vote in the elections for the municipal council?The article draws on survey data collected via an exit poll in the ‘Belgian Local Elections Study’, a research project conducted by an inter-university team of scholars.Our analysis shows that nearly 45% of the total research population cast a split-ticket vote in the local elections of 2018. However, this number drops to one out of four if we only consider a homogenous party landscape at both levels by excluding the numerous votes for ‘local’ lists (which occur mostly at the municipal level). This finding underlines the importance of accounting for the electoral and institutional context of the different electoral arenas in research on split-ticket voting in PR systems. In the Belgian context, split-ticket voting in 2018 also differed between the different parties and regions. Furthermore, it was encouraged by a higher level of education and familiarity with particular candidates. This candidate-centred and strategic voting was matched by party identification and the urban municipal context favouring straight-ticket voting. Other factors such as region, a rural municipal context and preferential voting seemed more relevant to determine voting for local parties than using the instrument of split-ticket votes as such.
Efeitos de sujeição: Programa Ciência sem Fronteiras
Authors: Lingnau Carina Merkle , Navarro Pedro 
Published: November 2019

Vivemos em um momento histórico em que a globalização é a palavra de ordem. A busca pelas relações globalizadas exige contato com outros países e preza pela internacionalização. Essa internacionalização aciona conexões no campo educacional, social, econômico, jurídico, entre outros. Nessa parceria entre globalização e internacionalização que ora são complementares, ora sinonímias, ocorre simultaneamente outra parceria: poder-saber. É nesse clima de globalização/internacionalização, poder-saber que o Programa Ciência sem Fronteiras (CsF) é idealizado e politicamente instituído pelo governo brasileiro nas instituições de ensino superior (IES). O objetivo deste artigo é refletir sobre os efeitos de governamentalidade percebidos nos discursos produzidos sobre o CsF nas sequências enunciativas (SEs) do corpus elencado para esse artigo. Como metodologia utilizamos levantamento bibliográfico, pesquisa documental, entrevistas narrativas (BAUER GASKEL, 2002) e método arquegenealógico (FOUCAULT, 1999, 2008a, 2014a). Nossas discussões têm suporte teórico em Foucault (1995, 1999, 2008a, 2008b, 2008a ,2014b, 2015a, 2015b), Veiga-Neto (1999), Veyne (2011), Bauman (1999), entre outros. Percebemos que os efeitos de sujeição nas SEs analisadas divergem das proposições sugeridas pelo CsF, divergências essas que se materializam na dificuldade dos envolvidos no CsF com o uso da língua inglesa e por consequência o obstáculo em fazer parte efetivamente de pesquisa e extensão.
The first North AmericanPropterodon(Hyaenodonta: Hyaenodontidae), a new species from the late Uintan of Utah
Authors: Zack Shawn P. 
Published: November 2019

The carnivorous mammalian fauna from the Uintan (late middle Eocene) of North America remains relatively poorly documented. This is unfortunate, as this is a critical interval in the transition from “creodont” to carnivoran dominated carnivore guilds. This study reports a new species from the Uinta Formation of the Uinta Basin, Utah, the first North American species of the otherwise Asian hyaenodont genusPropterodon. The new species,Propterodon witteri, represented by a dentary with M2-3from the late Uintan Leota Quarry, is larger than the well-knownP. morrisiandP. tongiand has a larger M3talonid, but is otherwise very similar. A phylogenetic analysis of hyaenodont interrelationships recoversP. witterias a hyaenodontine but is generally poorly resolved. A relationship between Hyaenodontinae andOxyaenoides, recovered by many recent analyses, is not supported. Among the Asian species ofPropterodon,P. pishigouensisis reidentified as a machaeroidine oxyaenid and recombined asApataelurus pishigouensisnew combination.Isphanatherium ferganensismay also represent an Asian machaeroidine. Identification of a North American species ofPropterodonand an AsianApataelurusincreases the similarity of North American Uintan and Asian Irdinmanhan faunas and suggests that there was substantial exchange of carnivorous fauna during the late middle Eocene.
Catalytic Interfaces‐Enriched Hybrid Hollow Spheres Sulfur Host for Advanced Li–S Batteries
Authors: Yang Jin‐Lin , Zhao Shi‐Xi , Zeng Xiang‐Tian , Lu Yi‐Ming , Cao Guo‐zhong 
Published: November 2019

AbstractLithium–sulfur (Li–S) batteries are considered as a promising next‐generation energy storage technology due to its high energy density over 2500 Wh kg−1 and low cost. Its development and application require to overcome several obstacles including the large volume change, the low electrical conductivity of S/Li2S, and the shuttle effect of lithium polysulfides (LIPSs). In this work, the hollow N‐doped carbon spheres (NHCS) decorated with nanosized SnS2 (NHCS‐SnS2) are synthesized and investigated to host sulfur used as the cathode for Li–S batteries. Highly conductive NHCS offer a large specific surface area and robust confinement for active material S, while SnS2 nanoparticles provide efficient chemisorption of LIPSs and promote the deposition of solid Li2S. The NHCS‐SnS2/S cathode materials deliver a high discharge capacity 1344 mAh g−1 at 0.2 C and a low capacity decay over 200 cycles at 0.5 C. The outstanding cycling stability at 0.2 C with high sulfur loading of 3.0–3.1 mg cm−2 can also be readily attained. The excellent electrochemical performance is attributed to possible triple phase catalytic effect of NHCS‐SnS2 and electrolyte, and such structure permits the full utilization of active materials from S8 to Li2S.
Solvent Dependent Divergent Reactivity of Electron‐Rich Dienones with and without Visible Light: Access to Cyclopropanated Furans and Butenolides
Authors: Saha Jayanta , Das Indrajit 
Published: November 2019

AbstractVisible light excitation of electron‐rich dienones in isopropanol solvent under ambient conditions using hexafluoroisopropanol (HFIP) as an additive promotes intramolecular radical cascade cyclization to afford cyclopropanated furans. Molecular dioxygen in the air serves as a redox catalyst in this reaction which is proposed to proceed through a radical cation intermediate generated by single‐electron transfer (SET) from a phototransient dienone to oxygen. By changing the solvent from isopropanol to HFIP, exclusive formation of substituted butenolides occurs via ionic cascade cyclization involving E→Z isomerization/lactonization/thiolate addition. HFIP is assumed to act as a medium, hydrogen bond donor catalyst, and a Lewis acid substitute as well. This reaction may be conducted even in the absence of light and no catalyst or reagent is required.magnified image
PEDOT‐Cellulose Gas Diffusion Electrodes for Disposable Fuel Cells
Authors: Mitraka Evangelia , Vagin Mikhail , Sjöstedt Anna , Berggren Magnus , Håkansson Karl M. O. , Jonsson Magnus P. , Crispin Xavier 
Published: November 2019

AbstractThe mass implementation of renewable energy sources is limited by the lack of energy storage solutions operating on various timescales. Electrochemical technologies such as supercapacitors and batteries cannot handle long storage time because of self‐discharge issues. The combination of fuel storage technology and fuel cells is an attractive solution for long storage times. In that context, large‐scale fuel cell solutions are required for massive energy storage in cities, which leads to possible concepts such as low‐cost disposable fully organic membrane assemblies in fuel cells to avoid regeneration of expensive poisoned electrodes. Here, the formation of an organic gas diffusion electrode (GDE) fabricated by paper‐making production, combined with in situ polymerization is demonstrated for the first time. Cellulose is used as a 3D scaffold functionalized with poly(3,4‐ethylenedioxythiophene) (PEDOT) serving as both an electrical conductor and an electrocatalyst of high efficiency for the oxygen reduction reaction. The PEDOT‐cellulose porous GDE is implemented in a membrane assembly and demonstrated in a H2‐O2fuel cell. The demonstration of low‐cost material/manufacturing that is environmentally friendly is a paradigm shift in the development of fuel cells for a sustainable society.
Nanostructured Nickel/Ruthenium/Ruthenium‐Oxide Supercapacitor Displaying Exceptional High Frequency Response
Authors: Morag Ahiud , Maman Nitzan , Froumin Natalya , Ezersky Vladimir , Rechav Katya , Jelinek Raz 
Published: November 2019

AbstractThe lower performance of pseudocapacitive supercapacitors in high‐frequency applications such as alternating current (AC) line filtering has been ascribed to presumed slow kinetics of redox processes compared to ion diffusion in electric double layer capacitors. A nickel‐deposited ruthenium/ruthenium‐oxide symmetric supercapacitor exhibiting remarkable electrochemical properties, particularly very high frequency response (>1 kHz) is developed. The electrodes are prepared via a simple process consisting of electrochemical reduction of ruthenium chloride on commercially available nickel foil as the current collector. A symmetric supercapacitor comprising nickel/ruthenium/ruthenium‐oxide electrodes and a polystyrene‐based thin spacer exhibits particularly fast scan rates, high power density of 1500 mW cm−2 (88 kW cm−3) with a maximum energy density of 0.58 µWh cm−2 (34 mWh cm−3), and excellent capacitance retention. Notably, supercapacitors prepared by the same synthetic method albeit using conventional gold substrate instead of nickel exhibit significantly lower frequency response. The exceptional electrochemical properties of the nickel/ruthenium/ruthenium‐oxide supercapacitor and simple electrode synthesis point to promising applicability in AC line filtering and power conditioning. In a broader context, this work demonstrates that, contrary to the widely held presumption, the kinetics of redox reactions at the active layers of pseudocapacitors may not be the primary barriers to high‐frequency applications.