bluuebunny/crossref_metadata_2025 huggingface dataset:
Both Parents Working: Challenges and Strains in Managing the Reconciliation of Career and Family Life in Dual-Career Families. Empirical Evidence from Austria
Authors: Mauerer Gerlinde
Published: December 2018

The presented empirical data analysis aims to shed light on the persistence of gender inequalities in sharing parenting responsibilities and addresses possible improvements for realising gender equality. In recent decades, family policies in the European Union have targeted the increase of men’s shares in parental leave (=paternal leave) as well as women’s participation in the labour market. Following the results of the Lisbon Treaty in 2000, many EU member states including Austria introduced non-transferable fathers’ quotas in their regulations on parental leave. Subsequently, the share of men on parental leave increased. Nevertheless, both in number and duration, men’s childcare allowance claims have remained lower than women’s claims. This paper investigates shared parental leave practices based on 36 interviews with fathers on paternal leave, and 14 follow-up interviews with parents after paternal leave. The qualitative data reveal the challenges that arise when both parents are faced with reconciling work and family during and after parental leave. Although the data showed that progress has been made in reducing gender inequality, the interviews make clear that employers’ attitudes perpetuate traditional gendered expectations of parental leave claims and still focus on images of a male breadwinner. Also, the distribution of gainful and family work reveals gender inequalities. The paper therefore discusses challenges that arise in the realisation of current gender and family policies in order to provide a basis for making changes that further enhance the opportunities for dual-career couples within the organisation of parental leave laws.
Serbian Organic Food Consumer Research and Bioeconomy Development
Authors: Grubor Aleksandar , Milicevic Nikola , Djokic Nenad
Published: December 2018

The bioeconomy has been introduced as a potential answer to some of the issues that modern mankind is confronted with: Climate change, industrial restructuring, food security, health, and energy security. In its goal to establish sustainable green growth, the bioeconomy relies heavily on the agriculture and food sector, whereas a special place belongs to organic food. Increasing organic food consumption depends on understanding organic food consumers. Research of their profile, both worldwide and in Serbia, has failed to find their common characteristics. In this paper, results of research with the first application of a logit model in defining domestic organic food consumers are presented. The results showed they were urban, highly educated, and with higher income. The greatest obstacle for increasing their future consumption of organic food was its insufficient availability. The paper provides managerial implications as well.
Mixed Topology of DF Relayed Terrestrial Optical Wireless Links with Generalized Pointing Errors over Turbulence Channels
Authors: Varotsos George K. , Nistazakis Hector E. , Stassinakis Argyris N. , Volos Christos K. , Christofilakis Vasileios , Tombras George S.
Published: December 2018

This study investigated the outage performance of a terrestrial FSO communication system that uses mixed series and parallel decode-and-forward (DF) relay-assisted (i.e., cooperative diversity) configurations, taking into account the influence of both atmospheric turbulence and pointing error effects. Turbulence-induced optical signal fading is modeled by gamma-gamma or the negative exponential distribution for weak to strong and saturated turbulence conditions, respectively. Additionally, weak to strong non-zero boresight misalignment-induced optical signal fading is modeled by the generalized Beckmann distribution. Under these conditions, an outage analysis of the examined FSO system is performed, in terms of both outage probability and mean outage duration metrics. Thus, fairly accurate closed-form mathematical expressions for both performance metrics are derived, while their corresponding analytical results demonstrate concrete performance and availability improvements for the total FSO system, especially when the number of the connected in parallel DF relays increases. Moreover, the obtained results are verified through the corresponding simulation results.
Alternative to Animal Use for Detecting Biologically Active Staphylococcal Enterotoxin Type A
Authors: Rasooly Reuven , Do Paula , He Xiaohua , Hernlem Bradley
Published: December 2018

Staphylococcal enterotoxins (SEs) are a food safety concern. Existing methods for biologically active SE detection rely on the emetic response in live kittens or monkeys. This method suffers from low sensitivity, poor reproducibility, and causes ethical concerns regarding the use of experimental animals. The Lautenberg Chemical Safety Act encourages the development and adoption of alternatives to testing on animals for chemical toxicity methodologies. In this study, we utilized the superantigenic effect of SE type A (SEA) and used an ex vivo bioassay as an alternative to live animal testing. We found that interleukin-2 (IL-2) secreted by splenocyte can be utilized for quantifiable detection of SEA in food products. To avoid food matrix interference and attenuation of signal, we separated SEA from spiked food products by employing immunomagnetic beads that were coated with an anti-SEA antibody. This ex vivo method has achieved the detection of 1 ng mL−1 of SEA, which is 107 times more sensitive than the existing live animal testing methods. However, this ex vivo bioassay requires sacrificing of mice. To overcome this limitation, we established a cell based in vitro assay using CCRF-CEM, a human CD4+ T-cell line, for the quantitative detection of SEA. Incubation of SEA with CCRF-CEM human T-cells and Raji cells led to quantifiable and dose dependent secretion of IL-2. This novel cell-based assay is highly specific to biologically active SEA, compared with the related SE toxin subtypes B, D, and E or heat inactivated SEA, which produce no secretion of IL-2. This is the first demonstration of an alternative assay that completely eliminates the use of animals for quantitative detection of active SEA.
One Health (r)Evolution: Learning from the Past to Build a New Future
Authors: Capua Ilaria , Cattoli Giovanni
Published: December 2018

The One Health concept recognizes that the health of human beings, animals, plants and the environment is interconnected and interdependent. This idea has been shaped over the centuries and has gained momentum and traction as anatomy, physiology, microbiology and other disciplines have substantiated earlier theories. Here we recall major historical milestones which have contributed to shaping the One Health concept as it is today, and discuss the past and future drivers in view of future challenges in an evolving scenario.
Evapotranspiration of the Brazilian Pampa Biome: Seasonality and Influential Factors
Authors: Rubert Gisele Cristina , Roberti Débora Regina , Pereira Luis Santos , Quadros Fernando L. F. , Campos Velho Haroldo Fraga de , Leal de Moraes Osvaldo Luiz
Published: December 2018

Experimentally characterizing evapotranspiration (ET) in different biomes around the world is an issue of interest for different areas of science. ET in natural areas of the Brazilian Pampa biome has still not been assessed. In this study, the actual ET (ETact) obtained from eddy covariance measurements over two sites of the Pampa biome was analyzed. The objective was to evaluate the energy partition and seasonal variability of the actual ET of the Pampa biome. Results showed that the latent heat flux was the dominant component in available energy in both the autumn–winter (AW) and spring–summer (SS) periods. Evapotranspiration of the Pampa biome showed strong seasonality, with highest ET rates in the SS period. During the study period, approximately 65% of the net radiation was used for the evapotranspiration process in the Pampa biome. The annual mean ET rate was 2.45 mm d−1. ET did not show to vary significantly between sites, with daily values very similar in both sites. The water availability in the Pampa biome was not a limiting factor for ET, which resulted in a small difference between the reference ET and the actual ET. These results are helpful in achieving a better understanding of the temporal pattern of ET in relation to the landscape of the Pampa biome and its meteorological, soil, and vegetation characteristics.
Riverbank Filtration Impacts on Post Disinfection Water Quality in Small Systems—A Case Study from Auburn and Nebraska City, Nebraska
Authors: D'Alessio Matteo , Dvorak Bruce , Ray Chittaranjan
Published: December 2018

Small water systems can experience a fluctuating quality of water in the distribution system after disinfection. As chlorine is the most common disinfectant for small systems, the occurrence of disinfection byproducts (DBPs) represents a common problem for these systems. Riverbank filtration (RBF) can be a valuable solution for small communities located on riverbanks. The objectives of this study were to evaluate (i) the improvements in water quality at two selected RBF systems, and (ii) the potential lower concentrations of DBPs, in particular, trihalomethanes (THMs), in small systems that use RBF. Two small communities in Nebraska, Auburn and Nebraska City, using RBF were selected. Results from this study highlight the ability of RBF systems to consistently improve the quality of the source water and reduce the occurrence of THMs in the distribution water. However, the relative removal of THMs was directly impacted by the dissolved organic carbon (DOC) removal. Different THM concentrations and different DOC removals were observed at the two RBF sites due to the different travel distances between the river and the extractions wells.
Automated Laboratory Infiltrometer to Estimate Saturated Hydraulic Conductivity Using an Arduino Microcontroller Board
Authors: Rodríguez-Juárez Pedro , Júnez-Ferreira Hugo , González Trinidad Julián , Zavala Manuel , Burnes-Rudecino Susana , Bautista-Capetillo Carlos
Published: December 2018

This paper describes the design, calibration and testing processes of a new device named Automated Laboratory Infiltrometer (ALI). It allows to determinate in laboratory, under controlled conditions the saturated hydraulic conductivity (Ks) of altered or unaltered soil samples which is a key parameter to understand the movement of water through a porous medium. The ALI combines the advantages of three different approaches: measures vertical infiltration rates in a soil column, measures the actual volumes of vertically drained water through the soil column, and finally, uses heat as a natural tracer to determinate water flux rates through the porous medium; all those parameters are used to determinate Ks. The ALI was developed using the popular Arduino microcontroller board and commercially available sensors that give the whole system a low cost. Data from the ALI are recorded in a microSD memory so they can be easily read from any spreadsheet software helping to reduce time consuming and avoiding reading errors. The performance of this device was evaluated by comparing the water flow rates determined by the three approaches for which is designed; an excellent correlation among them was observed (worst correlation: R2 = 0.9826 and r-RSME = 0.94%).
Ranking of CMIP5 GCM Skills in Simulating Observed Precipitation over the Lower Mekong Basin, Using an Improved Score-Based Method
Authors: Ruan Yunfeng , Yao Zhijun , Wang Rui , Liu Zhaofei
Published: December 2018

This study assessed the performances of 34 Coupled Model Intercomparison Project Phase 5 (CMIP5) general circulation models (GCMs) in reproducing observed precipitation over the Lower Mekong Basin (LMB). Observations from gauge-based data of the Asian Precipitation-Highly Resolved Observational Data Integration Towards Evaluation of Water Resources (APHRODITE) precipitation data were obtained from 1975 to 2004. An improved score-based method was used to rank the performance of the GCMs in reproducing the observed precipitation over the LMB. The results revealed that most GCMs effectively reproduced precipitation patterns for the mean annual cycle, but they generally overestimated the observed precipitation. The GCMs showed good ability in reproducing the time series characteristics of precipitation for the annual period compared to those for the wet and dry seasons. Meanwhile, the GCMs obviously reproduced the spatial characteristics of precipitation for the dry season better than those for annual time and the wet season. More than 50% of the GCMs failed to reproduce the positive trend of the observed precipitation for the wet season and the dry season (approximately 52.9% and 64.7%, respectively), and approximately 44.1% of the GCMs failed to reproduce positive trend for annual time over the LMB. Furthermore, it was also revealed that there existed different robust criteria for assessing the GCMs’ performances at a seasonal scale, and using multiple criteria was superior to a single criterion in assessing the GCMs’ performances. Overall, the better-performed GCMs were obtained, which can provide useful information for future precipitation projection and policy-making over the LMB.
Exploring Attendance at a Traditional Cultural Event: The Case of a Holy Week Celebration
Authors: Lafuente Víctor , Sanz José Ángel , Devesa María
Published: December 2018

Holy Week is one of the most important traditions in many parts of the world and a complex expression of cultural heritage. The main goal of this article is to explore which factors determine participation in Holy Week celebrations in the city of Palencia (Spain), measured through the
number of processions attended. For this purpose, an econometric count data model is used. Variables included in the model not only reflect participants' sociodemographic features but other factors reflecting cultural capital, accumulated experience, and social aspects of the event. A distinction
is drawn between three types of participants: brotherhood members, local residents, and visitors, among whom a survey was conducted to collect the information required. A total of 248 surveys were carried out among brotherhood members, 209 among local residents, and 259 among visitors. The
results confirm the religious and social nature of this event, especially in the case of local participants. However, in the case of visitors, participation also depends on aspects reflecting the celebration's cultural and tourist dimension—such as visiting other religious and cultural
attractions—suggesting the existence of specific tourism linked to the event. All of this suggests the need to manage the event, ensuring a balance is struck between the various stakeholders' interests and developing a tourist strategy that prioritizes public-private cooperation.
BROKEN SILHOUETTE OF A BUILDING: MYSTIQUE AND ETHICS
Authors: Petrušonis Vytautas
Published: December 2018

The paper aims at revealing the role of a broken silhouette of a building or a group of such buildings representing a hierarchical compositional type in programming ethically significant content in the recipient’s consciousness. A city filled with a great number of buildings with a broken silhouette is distinguished by a dominating hierarchical compositional type. In fact, such a situation is unwelcome and even dangerous from the point of view of social programming, because it forms destructive attitudes in human consciousness. However, when placed in a contextually appropriate space, buildings with a dynamic outline will perform their “mission” of local compositional domination thus taking part in structuring a certain intrigue, forming ambiguity and together with organic elements expressing an idea of “collaboration”.

Laužytas pastato siluetas: mistika ir etika

Santrauka

Atskleidžiama pastatų su laužytu siluetu, priklausančių hierarchiniam kompoziciniam tipui, reikšmė programuojant suvokėjo sąmonėje etiškai reikšmingus socialinės elgsenos modelius. Pastatų ir urbanistinių kompleksų architektūra kaip ir kitų meno sričių kūriniai gali būti vertinama pagal tai, ar skatina pozityvių – harmoningų socialinės sąveikos stereotipų formavimą, ar destrukcines nuostatas. Priešingai negu hierarchinio kompozicinio tipo architektūra, organinė architektūra aktyviai dalyvauja neutralizuojant destrukcines nuostatas. Miestas, kuriame yra daug pastatų, stebimų iš nedidelio atstumo, pasižymi laužytu, dinamišku kontūru, reikalaujančiu išskirtinio suvokėjo dėmesio, pasižymi hierarchinio kompozicinio tipo dominavimu. Tokia padėtis nėra patenkinama ir net yra grėsminga socialinės elgsenos nuostatų programavimo požiūriu. Tačiau deriniuose su organiniais kompoziciniais elementais tokie objektai atliks savo lokalinio dominavimo misiją kurdami kompozicinę intrigą, prisidėdami prie etiškai reikšmingos bendradarbiavimo idėjos išreiškimo.
IMAGES IN ARCHITECTURE – FROM MURALS TO ILLUMINATING PROJECTIONS
Authors: Bąkowska Małgorzata
Published: December 2018

As in every other domain of art, in contemporary mural painting it is possible to indicate great projects and realizations as well as failures. However, many examples confirm the thesis of an especially significant role of depicting in architectural and urban space. After all, like in other kinds of painting, the main feature here is the talent of an artist. Artistic quality of depicting in architectural scale is so important because of its aesthetical, ethical and education role. It is hard to answer the question about the future of mural paintings and the role of the new media of transmitting color and illusion in architectural space. Nowadays, in the time of instant development of science and technology, increasing tempo of life and continuous need of changes, it may turn out that the digital and hologram pictures better fulfil the expectation of the present recipient. It is not unlikely that the practical values of these techniques – their energetic and light features – might cause the elimination of traditional wall paintings which have accompanied architecture for so many ages. On the other hand, we could observe in the present culture evident “retro” tendencies – the growth of interest in the past, the recognition of traditional forms of expression, and a desire for their continuation. Materiality, touchable texture, and some mysterious load of energy executed by artists in traditional techniques are the elements acting to the advantage of old- fashioned painted walls.

Paveikslai architektūroje – nuo freskų iki šviečiančių projekcijų

Santrauka

Sienų tapyba, kaip architektūros elementas, per amžius turėjo įvairių paskirčių: magišką, simbolinę, estetinę. Freskos suteikė vietai prestižo, perdavė religinio turinio žinias ir įamžino svarbiausias įvykius. Kadangi sienų tapyba visuomet egzistuoja architektūriniame kontekste ir perima architektūrinės formos specifiką, jos negalime suvokti kaip visiškai autonomiško meno. Dėl savo masto, spalvos, simbolinės prasmės ir tam tikrais atvejais aukštos meninės vertės freskos yra išraiškingi orientyrai miesto erdvėje, padedantys geriau susivokti „kognityviuose žemėlapiuose“. Šalia tradicinės sienų tapybos neseniai architektūrinėje aplinkoje ėmė atsirasti naujomis technologijomis – skaitmenine, lazerine ar hologramomis – atlikti paveikslai. Jų meninė vertė yra ypač svarbi dėl jų estetinės, etinės ir edukacinės reikšmės.
SKETCH FOR A HYPOTHETIC PROTOTYPE OF CONTEMPORARY MEGAPOLIS TOWNSCAPE
Authors: Zaleckis Kęstutis
Published: December 2018

The town is a multifaced, multiformcultural organism developing according to certain objective laws. The townscape of a town could be regarded as a cultural artefact – a partially autonomous form of external consciousness. Such an approach requires corresponding dynamical models for effective townscape formation. An effort is made to sketch such a dynamical model for the townscape of a contemporary megapolis on the basis of analogy between urban and verbal texts.

Šių dienų megapolio miestovaizdžio hipotetinioprototipo metmenys

Santrauka

Miestas – pagal tam tikrus objektyvius dėsningumus besivystantis, daugiaveidis ir daugiaformis, dinamiškas kultūrinis organizmas, į kurio formuojamą miestovaizdį gali būti žvelgiama kaip į kultūrinį artefaktą – savotišką išorinės, iš dalies autonomiškos sąmonės formą, kuriai reikia atitinkamų formavimo modelių. Taikant analogiją su verbaliniu tekstu, straipsnyje siekiama apibrėžti šių dienų megapolio miestovaizdžio dinaminio modelio preliminarias gaires
URBAN CONVERSION IN THE CONTEXT OF VILNIUS CITY DEVELOPMENT ACCORDING TO SOLUTIONS OF MASTER PLAN FOR 2015
Authors: Leitanaitė Rūta
Published: December 2018

Following the principles of sustainable development, one of the priorities, set in the new Master Plan of Vilnius, is development of a compact city. One of the instruments to achieve it is urban conversion. A convertible territory is a territory, which doesnt correspond to city‘s development priorities, its urban structure, or is injurious to the environment.

There are two types of convertible territories defined in Vilnius: the former or is existing industrial zones and territories of collective gardens.

Convertible territories are set after analysing them by criteria describing their impact on the city’s urban, environmental, economic, social qualities.

When setting the regulations of conversion and future function of a territory, future sustainable connections with the adjacent urban and functional structures are the essential thing.

The main principle of urban conversion is the multifunctional use, accentuating the necessity of public, social infrastructure. The regulations for convertible areas are analogous to the ones set for newly developing areas.

The main part of the former industrial territories is to be converted into multifunctional (residential, commercial, public) zones, giving priority to the ones located in the city centre or local centres. All the territories of collective gardens are to be converted into single-family housing areas.

The process of implementation of the regulation and control of urban conversion isn’t unquestionable. Improvements of the method are suggested referring to the experience of other European cities.

Urbanistinė konversija Vilniaus miesto plėtros kontekste pagal bendrojo plano 2015 metams sprendinius

Santrauka

Pateikta Vilniaus BP konvertuojamų teritorijų samprata ir tipai, aptariamas jų potencialo nustatymo būdas. Pristatoma konvertuotinų teritorijų Vilniaus mieste identifikavimo metodika; apžvelgta teikiama Vilniaus miesto savivaldybės teritorijos bendrajame plane iki 2015 metų teritorijų konversijos reglamentų nustatymo metodika bei konversijos reglamentų siūlymai konkrečioms miesto teritorijoms. Aptariami teritorijų konversijos sprendinių įgyvendinimo ir reguliavimo Lietuvoje mechanizmo trūkumai bei Europos miestų patirtis šioje srityje, išskiriant optimalius metodus. Apžvelgiama urbanistinės konversijos reguliavimo problema žemesnio nei bendrasis planas rango teritorijų planavimo dokumentuose.
ON THE DIALOGUE OF VALUES IN SACRAL ARCHITECTURE AND ART OF THE EAST AND WEST
Authors: Uścinowicz Jerzy
Published: December 2018

The author reviews the past and present examples of the diffusion of values in the Christian Churches, i.e., of the Eastern (Orthodox and Unite) and West (Roman Catholic and Protestant). They are portrayed through mutual conversion of temples, incorporation of traditional orthodox iconography in contemporary Roman Catholic churches as well as by adaptation of historic temples for their mutual ecumenical use. The values give testimony to the synthesis of art of both Christian Churches as well as to the return to their ecclesial unity. Apart from a retrospective look at contemporary, post-war buildings of this type the authors’ realizations are also introduced.

These examples are representative for the architecture of cultural borderland which attempts to synthesize both the Western and Eastern Christian art.

Apie vertybių dialogą rytų ir vakarų sakralinėje architektūroje

Santrauka

Analizuojama kultūrų dialogo sakralinėje architektūroje tema. Pasitelkiant istorinius ir šiuolaikinius pavyzdžius aptariamos Rytų (stačiatikių ir unitų) ir Vakarų (katalikų ir protestantų) bažnytinėje architektūroje pasireiškusios tarpusavio įtakos ir sąveikos buvusios Lenkijos Karalystės ir Lietuvos didžiosios kunigaikštystės teritorijoje. Nagrinėjamos maldos namų konfesinės konversijos, jų naudojimas ekumeninėms apeigoms, stačiatikių ikonografijos apraiškos katalikų bažnyčiose. Straipsnio autorius dalijasi krikščioniškojo meno sinteze pagrįstų meninių sprendimų taikymo patirtimi, sukaupta projektuojant maldos namus.
Mapeamento das dissertações que versam sobre o uso de tecnologias educacionais no ensino de física
Authors: Motta Marcelo Souza , Kalinke Marco Aurélio , Mocrosky Luciane Ferreira
Published: December 2018

Este artigo apresenta um mapeamento das dissertações que relacionam o uso de tecnologias educacionais com o ensino de Física. Com base nesse interesse, o foco foi dado a pesquisas realizadas no Programa de mestrado profissional em Formação Científica, Educacional e Tecnológica (PPGFCET) da Universidade Tecnológica Federal do Paraná (UTFPR), no período de 2013 a primeiro semestre de 2018. O procedimento metodológico adotado possui como característica uma investigação documental, na perspectiva de um trabalho inventariante. Para sua realização, utilizamos como procedimento a técnica de mapeamento proposta por Fiorentini (2002). Inicialmente foram identificados 77 trabalhos no repositório institucional e na página do programa, depois foram selecionadas 11 dissertações que atendiam aos interesses da pesquisa. Após o processo de categorização, realizamos o fichamento dos resumos dos trabalhos e, em alguns casos, os textos foram lidos integralmente. As pesquisas foram organizadas em três focos e seis subfocos temáticos, que apresentam as principais contribuições dos estudos para o ensino de Física. Os resultados indicam a relevância das pesquisas e dos produtos educacionais desenvolvidos, mas também apontam a necessidade de uma maior diversificação nas temáticas que envolvem tecnologias educacionais no ensino de Física.
A contextualização na formação de professores de química
Authors: Lara Moisés Da Silva , Duarte Luciana Gili Vieira
Published: December 2018

Este trabalho discute a elaboração de uma oficina de aprendizagem proposta como atividade de extensão para a formação de professores no Curso de Licenciatura em Química de uma universidade pública do sul do país. O objetivo geral foi que os licenciandos compreendessem o processo de contextualização através do envolvimento ativo na elaboração de uma oficina sobre a química dos perfumes. As atividades exploraram uma perspectiva pragmática da linguagem, de inspiração bakhtiniana e wittgensteiniana, com vistas a promover uma abordagem contextualizada e interdisciplinar, tanto dos conteúdos explorados quanto dos desafios didáticos e metodológicos envolvidos. Entre os objetivos específicos estavam a identificação das dificuldades dos licenciandos; o entendimento deles sobre o potencial desta abordagem para a aprendizagem; a análise da contribuição das atividades para a formação dos futuros docentes. Foram feitos registros de observações e coletados materiais produzidos pelos licenciandos para que pudessem ser analisados junto com os dados produzidos por uma enquete online. Assim, identificamos uma preocupação dos licenciandos com o tempo de elaboração e execução da oficina e, com o domínio do conteúdo explorado, além de dificuldades para discutir os fenômenos envolvidos, mesmo nos casos em que eles já tinham um bom nível de conhecimento conceitual. Entretanto, a execução das atividades foi bastante positiva para a formação dos licenciandos, permitindo que eles ampliassem conhecimentos de química e, em especial, a compreensão sobre a contextualização no ensino de Química.
Diferentes encaminhamentos para um mesmo tema em atividades de modelagem matemática
Authors: Castro Elida Maiara Velozo de , Veronez Michele Regiane Dias
Published: December 2018

Pesquisas sobre Modelagem Matemática na Educação Matemática têm apresentado contribuições relevantes para o ensino da matemática e também provocado reflexões acerca da utilização da Modelagem para compreender situações do cotidiano ou do interesse dos alunos. No presente estudo temos como objetivo discutir como diferentes atividades de modelagem matemática podem surgir de um mesmo tema de interesse. Assim, apresentamos os encaminhamentos adotados por dois grupos de alunos, do 8o ano do Ensino Fundamental, destacando a dinâmica proporcionada por atividades de modelagem matemática no contexto das aulas de matemática. Este trabalho segue orientações da abordagem qualitativa uma vez que considera observações em sala de aula, transcrições das gravações em áudio, registros escritos e demais produções dos alunos. Os resultados apontam que, em um ambiente de Modelagem Matemática, uma mesma temática, estudada por grupos distintos, embora possa apresentar alguns aspectos tratados de maneira semelhantes, se diferencia em vários outros aspectos, como, por exemplo, os conceitos matemáticos utilizados no desenvolvimento de cada atividade, trazendo à tona diferentes conhecimentos matemáticos e não matemáticos dos alunos.
Problematizando o ensino de modelos atômicos: uma exploração sobre as representações e o uso de um jogo didático
Authors: Camargo Luana Carol de , Asquel Sara De Simas , Oliveira Brenno Ralf Maciel
Published: December 2018

O presente trabalho busca discutir sobre o ensino de modelos atômicos no ensino médio, a partir do uso de diversificados recursos didáticos, buscando-se superar algumas das dificuldades atreladas ao processo ensino-aprendizagem deste conteúdo. Para tal, planejou-se uma sequência de aulas em que se explorou o uso de representações mentais, modelos e um jogo didático. O planejamento foi realizado por licenciandas em química e aplicado com alunos do primeiro ano do Ensino Médio em uma escola estadual de Joinville/SC. A exploração e discussão sobre as representações mentais do átomo, a partir de desenhos feitos pelos alunos, mostraram-se importantes para problematizar a ideia da criação de modelos para algo que não se vê, refletindo sobre o papel dos atomistas. O uso dos modelos auxiliou diretamente nessa (re)construção da compreensão acerca de cada modelo atômico estudado. Os jogos didáticos promoveram a participação e curiosidade da turma, proporcionaram melhoras no aprendizado dos alunos a partir da interação estabelecida entre eles, revelando-se ser uma importante ferramenta de avaliação para a aprendizagem. As ferramentas utilizadas mostraram bom potencial para o ensino de modelos atômicos, mas precisam de uma mediação consciente do professor. Conclui-se ser fundamental que o ensino de modelos atômicos seja precedido, ou problematizado concomitantemente, por discussões que tenham por base o uso da linguagem, a exploração da ideia de representação e uso de modelos e analogias, para dar coerência ao aprendizado dos estudantes.
Artigos, entrevistas e dossiê temático na ACTIO
Authors: Panossian Maria Lúcia , Rezende Veridiana
Published: December 2018

Editorial para o nono número da ACTIO: docência em ciências.
Certificação de imóveis rurais gerada pelo INCRA/SIGEF: transcrição da certificação em serviço de registro de imóveis
Authors: Fontes Marco Lima
Published: December 2018

Com o advento e evolução dos sistemas de geoposicionamento por satélites, tornou-se possível a localização de qualquer ponto sobre a superfície da Terra com grande precisão. Atento a essa evolução tecnológica, o legislador brasileiro procurou tirar proveito do avanço técnico, editando a Lei 10.267/01 - dita Lei do georreferenciamento - que cria o Cadastro Nacional de Imóveis Rurais - CNIR, e determina que todas as propriedades rurais do país sejam georreferenciadas - é dizer, as coordenadas dos vértices que definem os limites das propriedades devem ser levantadas segundo as avançadas técnicas disponíveis e georreferenciadas ao Sistema Geodésico Brasileiro. O processo da certificação se inicia com a coleta dos dados, em campo, pelos profissionais especializados, as informações geográficas são inseridas no banco de dados do Instituto Nacional de Colonização e Reforma Agrária - INCRA, que verifica as informações fornecidas e, inexistindo inconsistências, certifica o levantamento. O processo conclui-se com a transcrição das informações geográficas no serviço de registro de imóveis e posterior atualização na base de dados nacional. O problema encontrado na prática é que muitos agentes notariais entendem, apenas, a obrigatoriedade de criação de uma nova matrícula para o imóvel, não atentando para as exceções expressas em lei, a fim de que se possa processar a transcrição da certificação. As divergências que acarretam um maior dispêndio de tempo e energia, chegando, por vezes, a causar interrupção no processo. Objetiva-se com este artigo analisar a legislação pertinente ao tema, a fim de identificar as hipóteses em que é possível realizar averbação nas matrículas existentes e as hipóteses em que se faz necessária a inscrição de uma nova matrícula. Espera-se com isso contribuir para minorar as dúvidas de tabeliães, registradores e demais profissionais envolvidos na certificação de imóveis rurais.
Avaliação de técnicas de nivelamento e métodos de posicionamento GNSS para determinação de desnível de primeira ordem
Authors: Nicacio Eurico Lourenço , Santacruz Jaramillo Andrea Galudht , Zanetti Gabriel Zehnpfennig , Faggion Pedro Luis
Published: December 2018

Este artigo descreve estudos realizados com o intuito de verificar e avaliar a precisão obtida através do emprego de diferentes técnicas de nivelamento e métodos de posicionamento GNSS com diferentes métodos de processamento. As técnicas de nivelamento utilizadas foram: nivelamento geométrico de precisão – método de visadas iguais com nível eletrônico; nivelamento trigonométrico de precisão – técnica Leap-Frog – com estações totais de média e alta precisão; e adaptação de metodologia recomendada pelo Instituto Brasileiro de Geografia e Estatística – IBGE para travessia de rios com nivelamento de precisão, utilizando nível óptico. As diferentes técnicas de posicionamento e processamento GNSS utilizados foram: método relativo estático com efemérides transmitidas; método relativo estático com efemérides precisas; e Processamento por Ponto Preciso [PPP], do IBGE. Após a realização dos experimentos, como resultado observou-se que todas as técnicas de nivelamento apresentaram precisão dentro dos limites indicados pelo IBGE na Resolução para nivelamento pelo IBGE para nivelamento de 1ª ordem (3mm√k). Com relação ao uso dos métodos de posicionamento GNSS, os resultados obtidos foram insatisfatórios para a precisão exigida. Em especial, a adaptação da técnica de travessia de rios com nivelamento de precisão mostrou-se como uma possível aplicação para determinação de desnível que, apesar de antiga e pouco difundida, forneceu a precisão adequada à a operação.
Avaliação da expansão da rede de dados gravimétricos e influência do relevo na solução dos curtos e curtíssimos comprimentos de onda do sinal de N no modelo geoidal brasileiro 2015 para a o sul de Minas Gerais
Authors: Siqueira Loram , Palmeiro Alessandra Svonka
Published: December 2018

A comunidade geodésica tem desenvolvido pesquisas e buscado uma metodologia adequada, com uma quantidade restrita de dados gravimétricos, visando à obtenção de um sistema de altitudes consistente e único.  Neste contexto a utilização de Modelos Geoidais (MGs) para a determinação de altitudes com significado físico obteve grande avanço junto a era espacial. O MAPGEO2015 é o mais recente Modelo Geoidal (MG) brasileiro, produzido e fornecido pela Fundação Instituto Brasileiro de Geografia e Estatística (IBGE) e pela Escola Politécnica da Universidade de São Paulo (EP/USP). Este trabalho, a partir da metodologia de decomposição espectral, analisou a variação entre este novo produto e o modelo antecessor e utilizou-se de estações terrestres do tipo SAT/GPS para comparação. Com a utilização das decomposições dos curtos e curtíssimos comprimentos de onda avaliou-se a real variação entre os modelos e se tais variações se apresentavam significativas através do teste estatístico t de Student para amostras pareadas sobre a região de interesse e por último se a variação da topografia influencia na variabilidade entre os modelos. Pôde-se verificar que a discrepância entre os MGs não apresentou uma diferença significativa como se esperava.
First record of Odontosphaeropyx Cameron, 1910 from the Oriental Region with description of a new species from Thailand (Hymenoptera, Braconidae, Cheloninae)
Authors: Quicke Donald L.J. , Butcher Buntika A.
Published: December 2018

OdontosphaeropyxmatasiQuicke & Butcher,sp. n.from Thailand is described and illustrated. The new species represents the first known record ofOdontosphaeropyxfrom outside of the Afrotropical Region. A key is provided to separate it from the apparently closely relatedO.flavifasciatusZettel, 1990, with which it shares almost identical colouration, very different from the other five known species.
L’appel au Djihad
Authors: Douville Olivier
Published: December 2018

Ce texte présente comment un psychanalyste écoute, à Paris, la façon dont des jeunes gens, filles et garçons, sont séduits par l’appel au djihad . Ces jeunes personnes ne sont pas des fanatiques. Ils viennent rencontrer un psychanalyste sur le conseil de certains de leurs amis ou de membres de leurs familles. L’auteur de ce texte décrit les troubles de l’identité et les blessures psychologiques importantes, mais aussi les idéaux et les espoirs de ces jeunes.
L’usage du concept d’éthique comme mode de gestion et de contrôle des comportements des acteurs. Une étude dans le cadre du football professionnel français
Authors: Ruppe Willem , Durand Christophe , Sirost Olivier , Dermit-Richard Nadine
Published: December 2018

Cette contribution questionne l’adaptation du concept d’éthique sportive dans le cas spécifique du sport professionnel, et plus particulièrement à partir d’un focus sur le football professionnel français. L’éthique sportive est en effet un concept polysémique largement traité dans la littérature en philosophie et en sociologie du sport. De plus, la diversité des modes de pratique questionne quant à cette adaptation du concept aux spécificités des différentes façons de faire du sport. Pour la recherche en management portant sur le sport professionnel, il semblerait alors nécessaire de définir l’éthique sportive de manière pragmatique en raison du caractère non-opérationnel engendré par son héritage philosophique. Evaluer positivement son efficacité, ainsi que celle de la régulation opérée autour de l’éthique sportive, nécessite alors de caractériser le concept de manière explicite. Dans cette optique, il est proposé d’explorer les principaux travaux issus de la littérature abordant « éthique » et « sport » afin de préciser notre objet et le contexte dans lequel s’inscrit notre recherche. De même, à partir d’un corpus documentaire (n=95), une déclinaison de la grille d’analyse de Mercier (2014) portant sur la formalisation de l’éthique dans les organisations est effectuée. Les résultats laissent alors entrevoir l’explicitation croissante d’un grand nombre de principes éthiques sous forme de règlementations dans le cas d’une pratique professionnelle du football. Un glissement vers une normalisation déontologique de l’éthique sportive est donc observé. Le concept devient alors un outil de gestion et de contrôle des comportements des acteurs, s’éloignant ainsi des préceptes philosophiques sur lesquels il était fondé.
L’intégration du plein air en enseignement de l’éducation physique et à la santé : trois études de cas
Authors: Maziade Charles Hugo , Thériault Germain , Berryman Thomas , Gadais Tegwen
Published: December 2018

Introduction. Les jeunes Québécois ne font pas assez d’activité à l’extérieur malgré les bénéfices du plein air pour leur santé. Pour contrer ce manque, le Programme de Formation de l’École Québécoise (PFEQ) recommande la pratique d’éducation en contexte de plein air, notamment dans la discipline d’éducation physique et à la santé. Malgré cela, l’intégration du plein air dans la programmation annuelle des enseignants d’éducation physique est plutôt rare. Cette étude vise à préciser les facteurs qui favorisent ou limitent l’usage de l’éducation plein air en contexte d’éducation physique, mais également d’identifier les besoins des éducateurs physiques pour améliorer cet usage, par une meilleure compréhension des pratiques scolaires actuelles. Méthodologie. Trois études de cas ont été conduites avec des éducateurs physiques qui ont sélectionné à partir des critères d’inclusion. Ils ont participé à une entrevue semi-structurée qui a été enregistrée en format audio puis retranscrite, enfin son contenu a été analysé. Résultats. L’implantation de l’éducation plein air dans le contexte québécois fait face à un ensemble de contraintes mais des pistes de solutions existent. Les éducateurs physiques ne semblent pas avoir identifié une réelle progression des apprentissages appuyée par des mesures d’évaluation en lien avec le PFEQ. Ils affirment aussi manquer d’outils pédagogiques et d’accompagnement. Les liens entre éducation plein air, éducation à la santé et éducation relative à l’environnement doivent être précisés et renforcés. Conclusion. Ce travail a permis de préciser l’usage du plein air scolaire vis-à-vis de ses influences, mais aussi de préciser les facteurs qui aident ou limitent sa mise en œuvre en milieu scolaire ainsi que des pistes de réflexion pour augmenter sa pratique en milieu scolaire (accessibilité et coût du matériel, aménagement du temps, contenus d’enseignement et formations qualifiantes en plein air).
Juan Arañés Sallén (*Zaragoza?, 1580a; †La Seu d’Urgell?, 1649p). Hacia una nueva biografía crítica de un destacado músico español del siglo XVII
Authors: Cerveró Martínez Francisco Javier
Published: December 2018

El compositor Juan Arañés ha sido transmitido por la historiografía como un autor de especial relevancia y significación dentro del contexto panhispánico. De hecho, se le menciona en múltiples tratados teórico-musicales. Sin embargo, todavía no existía una biografía crítica y contrastada sobre él mismo en la actualidad. Bien es cierto que los meros datos biográficos que han llegado hasta nosotros han transmitido no pocos errores, y que, habida cuenta de la movilidad y oscuridad de su trayectoria profesional, aún plantea no pocas lagunas e interrogantes. En el transcurso de esta investigación se han podido desvelar algunos de los errores transmitidos, cubrir ciertas lagunas y encontrar una información realmente valiosa (particularmente en archivos de Zaragoza, La Seu d’Urgell y Tortosa). El presente estudio fija y establece por primera vez una biografía crítica del compositor.
La existencia en España de una tercera gran colección de sonatas de D. Scarlatti copiada por el escriba de los Manuscritos de Venecia (Libros I-XIII) y Parma (Libros I-XV)
Authors: Yáñez Navarro Celestino
Published: December 2018

En el Archivo de Música de las Catedrales de Zaragoza (EZac) se guarda un importante corpus de sonatas de D. Scarlatti constituido por seis manuscritos del siglo XVIII cuyo origen se localiza en la Capilla Real y que pertenecieron a José de Nebra, el compositor español más relevante de la corte en tiempos del compositor italiano. Dos de estos manuscritos formaron parte, a su vez, de una tercera gran colección de sonatas cuya elaboración se inició con anterioridad a la copia de los volúmenes que hoy se conservan en Venecia y Parma, y corrió también a cargo del escriba principal. Dada la relevancia de las conclusiones obtenidas en mi tesis doctoral, puede afirmarse que el fondo documental de Zaragoza es un referente internacional de primer orden para continuar avanzando en el estudio de la música para teclado de D. Scarlatti.
Physical and Mechanical Properties Evaluation of Particle Board Produced from Saw Dust and Plastic Waste
Authors: Dotun Atoyebi Olumoyewa , Adediran Adeolu Adesoji , Oluwatimilehin Adisa Cephas
Published: December 2018

The current work reports on the fabrication of composite matrix from saw dust (SD) and recycled polyethylene terephthalate (PET) at different weight ratio by flat-pressed method. Wood plastic composites (WPCs) were made with a thickness of 15 mm after mixing the saw dust and PET followed by a three phase press cycle. Physical properties (Density, Water Absorption (WA) and Thickness Swelling (TS)) and Mechanical properties (Modulus of Elasticity (MOE) and Modulus of Rupture (MOR)) were determined base on the mixing ratios according to the standard. WA and TS were measured after 2 h and 24 h of immersion in water. The results showed that as the density increased, the SD content decreased from 90 % to 50 % into the matrix. However, WA and TS decreases when the PET content increased in the matrix. Remarkably, the MOE and MOR attained a maximum point at 964.199 N/mm2and 9.03 N/mm2respectively in 50 % SD content. In comparism with standard, boards D and E can be classified as medium density boards while A, B and C are low density boards. The results indicated that the fabrication of WPCs from sawdust and PET would technically be feasible for indoor uses in building due to favorable physical properties exhibited. The mechanical properties response showed that it cannot be used for structural or load bearing application.
Execution of Lean and ZF Production System in Manufacturing Line for Productivity Enrichment - A Case Study
Authors: Punna Rao Gunji Venkata , Nallusamy S.
Published: December 2018

The objective of this research is to implement the lean techniques over CNC machine cells with standardization and line balancing for reduction of overall lead time. The methodology used for this research is a combination of traditional lean system with ZF production system. The analysis was carried out over CNC machine cells with the objective of standardization and line balancing of the cells. Primarily the standardization of the CNC manufacturing cells were done, so that the process is streamlined and optimized without non-value added activity. Also this study deals with productivity improvement in manufacturing line through continuous improvement using kaizen approach. Observation of cycle time was carried out by video based work study technique. The operational videos such as cycle time of various processes were captured and improvement possibilities were identified. Then line balancing was done to overcome bottlenecks between operations to meet customer TAKT time and to increase overall productivity. The overall output has been improved from 22 to 30 per week for all models of gear box. Lean tools such as standard work procedure and Kaizen were employed and found that the overall cycle time was reduced by about 609 minutes with an improvement of 17.54%.