bluuebunny/crossref_metadata_2025 huggingface dataset:
Contribution of Meteor Flux in the Occurrence of Sporadic-E over
Arabian Peninsula
Authors: Shaikh Muhammad Mubasshir , Gopakumar Govardan , Alowais Aisha Abdulla , Sharif Maryam Essa , Fernini Ilias
Published: November 2020

Abstract. Sporadic-E (Es) is generally associated with a thin-layered structure present in the lower ionosphere mostly consisted of metallic ions. This metallic ion layer is formed when meteors burn in the upper atmosphere resulting in the deposition of free metal atoms and ions. Many studies have attributed to the presence of Es due to metallic ion layer, specifically during the nighttime. Using data from a network of meteor monitoring towers and a collocated digital ionosonde radar near Arabian Peninsula, in this paper, we are reporting our observations of Es together with the meteor count. It has been observed that the presence of Es and the meteor count data have no correlation in time, both diurnally and seasonally, leading us to conclude that presence of meteors is not the main cause for the presence of Es over Arabian Peninsula.
Do marine benthos breathe what they eat?
Authors: Ouyang Xiaoguang , Lee Cheuk Yan , Lee Shing Yip
Published: November 2020

Abstract. Intertidal benthos link tertiary predators and primary producers in marine food webs as well as directly contribute to sediment CO2 emission. However, current methods for studying food sources of marine benthos are time-consuming and does not allow direct estimates on feeding regime-related CO2 production. We examined the foods of mangrove crabs and gastropods as well as their corresponding CO2 production by using cavity-ring down spectroscopy to measure the δ13C of consumer-respired CO2, considering the effects of feeding regime, benthos taxa, and dominant feeding habit. Benthos taxa and feeding habit have significant impact on δ13C of respired CO2. Particularly, the δ13C of crab (−23.9±0.4 ‰) respired CO2 was significantly lower than that from gastropod (−17.5±1.3 ‰) respiration. The δ13C of deposit-feeder respired CO2 was significantly higher than that from detritivores. There are significant differences in the amount of CO2 emitted and δ13C of crab respired CO2 under different feeding regimes. The differences reflect diet-switching and fuel-switching in the crabs, i.e. you breathe what you eat. Significant differences in CO2 production of crabs also exist between those feeding on microphytobenthos (0.13±0.02 mmol g−1 day−1) and on field collection (0.31±0.03 mmol g−1 day−1). CO2 production of crabs is strongly related to carapace width and length. The δ13C of respired CO2 from mangrove crabs reflects their diet while crab-respired CO2 flux is related to crab size. These relationships enable partitioning the feeding habit and food sources of key benthos, and help incorporate their contribution into the overall sediment-atmosphere CO2 fluxes in mangroves.
LIDAR DERIVED 3D CITY MODELLING
Authors: Polat N.
Published: November 2020

Abstract. With the developing computer technologies and increasing data variety, academic and commercial studies started to move from 2 dimensions to 3 dimensions and within the concept of 3D Spatial Information Technology; Many new products and methods have emerged, such as the Digital Earth, Smart City, Virtual Reality, Intelligent Transportation Systems. 3D models of cities are now produced as well as 2D maps. These models can be used in many areas from urban planning, navigation applications, modelling of ancient cities to training and simulation applications. In this context, there are a few data set such as aerial images and LiDAR data, that can be used as 3D data source for modelling purposes. Within the scope of the study, an automatic 3D city model was produced with Envi LiDAR software.
USING TRANSFER LEARNING FOR MALWARE CLASSIFICATION
Authors: Prima B. , Bouhorma M.
Published: November 2020

Abstract. In this paper, we propose a malware classification framework using transfer learning based on existing Deep Learning models that have been pre-trained on massive image datasets. In recent years there has been a significant increase in the number and variety of malwares, which amplifies the need to improve automatic detection and classification of the malwares. Nowadays, neural network methodology has reached a level that may exceed the limits of previous machine learning methods, such as Hidden Markov Models and Support Vector Machines (SVM). As a result, convolutional neural networks (CNNs) have shown superior performance compared to traditional learning techniques, specifically in tasks such as image classification. Motivated by this success, we propose a CNN-based architecture for malware classification. The malicious binary files are represented as grayscale images and a deep neural network is trained by freezing the pre-trained VGG16 layers on the ImageNet dataset and adapting the last fully connected layer to the malware family classification. Our evaluation results show that our approach is able to achieve an average of 98% accuracy for the MALIMG dataset.
DECISIONAL TREE MODELS FOR LAND COVER MAPPING AND CHANGE DETECTION BASED ON PHENOLOGICAL BEHAVIORS. APPLICATION CASE: LOCALIZATION OF NON-FULLY-EXPLOITED AGRICULTURAL SURFACES IN THE EASTERN PART OF THE HAOUZ PLAIN IN THE SEMI-ARID CENTRAL MOROCCO
Authors: Sebbar B. , Moumni A. , Lahrouni A.
Published: November 2020

Abstract. Great effort has been recently employed for the development of a modern and competitive agriculture in Morocco, growth in the agricultural sector is determined largely through the realization of thousands of new projects, and the support of the smallholder farmers at a national scale. Modernization of irrigation systems, and enlargement of the extent and spatial distribution of irrigated areas holds the key to increase annual productions. In this context, we established a unique procedure for monitoring the agricultural surfaces not fully exploited in terms of potential and production, in the semi-arid zone of the Haouz plain, central Morocco. We derived Normalized Difference Vegetation Index (NDVI) time series from Sentinel-2 (S2) and Landsat 8 (L8) high spatial resolution satellite images from 2016 to 2018. Seasonal phenological changes and land-cover dynamics, in addition to elevation models and landscape slopes, helped determine periods and thresholds suitable for classes separability, and establish a set of rules to be implemented in a Decision tree classifier model for a detailed land-cover mapping of the last three years. The agricultural zone was successfully separated from mountains and hills, and the derived maps of the three years yielded satisfying result with an OAthat reached above 91% for quite detailed landscape-type information. The outputs of this work hold promise to provide valuable information for planners, decision-makers and regional offices, to help smallholder farmers. Although this approach has been developed at regional-scale, it holds the potential to be adapted to larger scales, with the appropriate selection of land-cover types, and carful adjustment in the threshold values.
MOBILE-WEB-BASE VOLUNTEERED GEOGRAPHIC INFORMATION APPLICATION AND GEOMETRIC ACCURACY ANALYSIS FOR TRAFFIC ACCIDENTS
Authors: Sevinc H. K. , Karas I. R. , Demiral E.
Published: November 2020

Abstract. The users can contribute to geographic information through platforms such as Wikimapia and OpenStreetMap. They can also generate data by themselves with their applications in cyber worlds like Google Earth. This study is primarily designed to be a guide regarding Volunteered Geographical Information (VGI) and to evaluate the geometric accuracy of data collected from volunteers on application. The main purpose of this study is to present basic information about Volunteered Geographical Information (VGI), why users are tending to use VGI, the accuracy of the data entered by the user, to examine the examples of use in various fields, to learn about geographic information systems and to compare this phenomenon and also by developing a VGI application to examine the similarity between the actual data and the data collected from volunteer users. A mobile and web-based application have been developed to collect traffic accident data from volunteer users. The geometric accuracy analysis was performed by comparing the data collected with this application with the data obtained from the General Directorate of Security.
AN EFFICIENT APPROACH TO MANAGE DOMESTIC WASTEWATER IN SMART CITY
Authors: Taouraout A. , Chahlaoui A. , Belghyti D. , Taha I. , Lachhab M.
Published: November 2020

Abstract. The adoption of an ecological sanitation system, meeting the requirements hygienic and sanitary, constitutes a feasible and technically and economically acceptable solution in the future smart city. This new sanitation concept has the advantage of solving the problems of pathogens of human waste at source, thus offering the possibility of reusing them after treatment (recycling) in order to improve the standard of living of the population and protect the environment. The aim of this study is to evaluate the efficiency of a vertical Multi-Soil-Layering system (MSL) system to treat domestic wastewater under three hydraulic loading rates: 250 L/m2/day, 350 L/m2/day and 500 L/m2/day, in Moroccan conditions. To do this, a vertical MSL system measuring 20cm × 60cm × 78cm (L × W × H) was designed to treat domestic wastewater and his performance was investigated. The results showed high removal of organic matters and nutrients under the three hydraulic loads tested; the performance averages recorded are upper than 84 % for organic matters, 83.1 ± 7.2 % for ammonium and 72.4 ± 14.1 % for orthophosphate. The quality of the treated wastewater was evaluated according to Moroccan reject limit value. Consequently, this system could be considered an effective solution to be adopted for decentralized domestic wastewater treatment in Moroccan conditions.
DETERMINING SMART INTERSECTIONS FOR SMART CITY APPLICATIONS USING MULTI-CRITERIA DECISION-MAKING TECHNIQUES
Authors: Urfalı T. , Eymen A.
Published: November 2020

Abstract. Urbanization process occurs unprecedentedly all round the world. Increase in population accompanies energy need, environmental issues and transportation problems. In order to manage urban growth which causes complication and to enhance the quality of life, we need to find new solutions. During the recent years, smart cities which solve their problems become popular thanks to integration between reformed technology and expanding cities. Primarily, it requires that smart city should be effective spatially. Due to these reasons, to have an investment to the area of requirement properly is extremely important with regard to cost and recovery in order to benefit from smart city applications ultimately and also to achieve high efficiency from this high budget investment. In this study, the criteria affecting the location of the intersections where the smart intersection system will be applied according to the current situation in Kayseri province by using the multi-criteria decision making method were examined. With these effective solutions, smart transportation will provide high functionality and a more efficient flow. At the same time, this study will help decision-makers in planning and investments.
Wonder Woman: An Assemblage of Complete Virtue Packed in a Tight Swimsuit
Authors: Ashford Theresa K , Curtis Neal
Published: November 2020

This paper uses actor-network theory (ANT) and Aristotelian virtue ethics to think with/of Wonder Woman as an assemblage of human and non-human actors clustered on a page. It also considers how the emerging assemblage that is Wonder Woman might be viewed as the embodiment of Aristotle’s ‘complete virtue’ or justice. As one of the ‘trinity’ of superheroes of Detective Comics (DC), which also include Superman and Batman, Wonder Woman was created to counter the sadism and tyranny of the Nazi threat during the 1930s and 1940s and has been continually published since 1941. Wonder Woman is a multidimensional icon and an exemplary model of a superhero with a different body and voice, who operates in a different way in the world. She is presented here as a case study to trace possible translations of Aristotle’s configurations of virtue and justice. Using ANT, we argue that Wonder Woman arises from an assemblage of actors that include an armoured swimsuit, a magic lasso, shiny bracelets and a star-emblazoned tiara. By problematising these technologies as actors that commonly invite objectification (the swimsuit) or subjugation (the ropes), this paper suggests possible divergent readings that reveal how virtue and justice can emerge within these relational networks. We test how the sexualised body depictions and overt bondage references in the Wonder Woman comics, and in particular, in our chosen story, George Pérez’s Wonder Woman: Destiny Calling, offer something bolder and more profound—a complex performance of justice. Additionally, this paper intimates the productive methodological powers of ANT in relation to the broader field of comics studies.
Crohn’s disease at radiological imaging: focus on techniques and intestinal tract
Authors: Cicero Giuseppe , Mazziotti Silvio
Published: November 2020

Over recent years, inflammatory bowel diseases have become an issue of increased attention in daily clinical practice, due to both a rising incidence and improved imaging capability in detection. In particular, the diagnosis of Crohn’s disease is based on clinical picture, laboratory tests and colonoscopy with biopsy. However, colonoscopic evaluation is limited to the mucosal layer. Thus, imaging modalities play a pivotal role in enriching the clinical picture, delivering information on intestinal and extraintestinal involvement. All the imaging modalities can be employed in evaluation of Crohn’s disease patients, each of them with specific strengths as well as limitations. In this wide selection, the choice of a proper diagnostic framework can be challenging for the clinician. Therefore, the aim of this work is to offer an overview of the different imaging techniques, with brief technical details and diagnostic potential related to each intestinal tract.
THE MOTOR SYMPTOMS–CHALLENGE IN DIAGNOSIS OF PARKINSON'S DISEASE
Authors:   Department Neurology and Neurosurgery, Faculty Medicine, Medical University, Pleven, Bulgaria., Marinova Desislava , Danovska Maya ,   Department Neurology and Neurosurgery, Faculty Medicine, Medical University, Pleven, Bulgaria.
Published: November 2020

Parkinson's disease (PD) is the second most common neurodegenerative disorder after the dementia of Alzheimer. The clinical presentation of PD is dominated by typical motor symptoms as resting tremor, cogwheel rigidity, bradykinesia, and postural instability. Non-motor symptoms (NMS) of Parkinson's disease are common but are often under-recognized in clinical practice either due to the lack of spontaneous complaints by the patients or to the absence of systematic questioning by healthcare professionals. In contrast to motor dysfunctions, non-motor symptoms frequently remain unreported. Recently, a self-completed NMS questionnaire and NMS scale for identification and evaluation of these symptoms have been validated. An international survey has shown that up to 62% of NMS in PD remain undeclared to healthcare professionals because patients are unaware that NMS symptoms are linked to PD. Based on both clinical and neuropathological data, PD, traditionally accepted as a dopaminergic motor disorder, now can be characterized as a multisystem neurodegenerative disease that involves many neurotransmitter systems and affects not only motor but non-motor functions, too.
Online Learning Anxiety and Self-Efficacy of Chinese EFL Learners Under Pandemic Situation
Authors: Yun Duo , Zhang Jianying
Published: November 2020

The present study aims to find out the anxiety of Chinese EFL learners as well as its relationship with self-efficacy in the online learning environment. A total of 492 Chinese college students from different regions participated in the research. The data obtained from the questionnaire survey were submitted to SPSS version 25.0 to do analysis. The results revealed that: (1) most English learners have a relatively high level anxiety toward online learning under the special pandemic situation, and the anxiety varies among students of different academic years; (2) there is a weak negative correlation between learning anxiety and self-efficacy (3) Anxiety affects self-efficacy in a negative way. More specifically, teaching mode and external environment have a significantly negative effect on self-efficacy.
Intermedial Performativity: Mo Yan's Red Sorghum on Page, Screen, and In-Between
Authors: He Chengzhou
Published: November 2020

Intermedial performativity refers to what happens to the performative power of text when it travels from one medium to another, and what effects the mixing or interactions of different media bring about to the texts involved. Here, “text” is used broadly, not just literary texts, but also texts in other kinds of media forms, such as film and TV. In this paper, Red Sorghum, both a novel written by Mo Yan, a Chinese Nobel Laureate, and a namesake film directed by Zhang Yimou, one of the leading Chinese fifth-generation film directors, will be closely analyzed from the perspective of intermedial performativity. The following questions will be mainly addressed: How did the ritualistic acts or signs in the novel get transmitted and transformed in the film adaptation? What kind of visual elements did the film borrow from the novel and then appropriate to achieve great effects? In what ways did Red Sorghum on both page and screen reflect or even contribute to the counterculture movements in the mid- to late 1980s China, which is in many ways similar to the 1960s in the United States and Europe in terms of cultural radicalism?
Utilization of prehospital emergency medical services in Saudi Arabia: An urban versus rural comparison
Authors: Alanazy Ahmed Ramdan M , Wark Stuart , Fraser John , Nagle Amanda
Published: November 2020

Background: There is limited research outside the USA, Europe, or Australia on the capacity, efficiency, and development of prehospital emergency medicine services (EMS) between urban and rural areas. This study aimed to examine the usage of prehospital EMS across rural and urban areas in Riyadh region in the Kingdom of Saudi Arabia. Methods: A random sample of 800 (400 urban and 400 rural) emergency patient records from the Saudi Red Crescent Authority EMS was collected. The following variables were analyzed: patient demographics, clinical characteristics, length of hospital stay, and length of intensive care unit (ICU) stay. Results: A skewed distribution was noted with respect to sex, i.e., 559 men versus 241 women. Rural patients were younger (42.75 vs. 39.72 years) and had significantly longer hospital (15 days versus 9 days) and ICU (5 days versus 2 days) stays than urban patients following transportation. All injury types were comparable, except for head injury, which was higher in the rural group than in the urban group. Advanced treatment and trauma transport were more often used in rural areas than in urban areas. Conclusions: In this study, rural EMS users were more likely to experience trauma-related incidents that necessitate EMS transportation, while medical reasons were more common among urban EMS users. Moreover, men used EMS at much higher rates than women and were more likely to be transported to the hospital following a call-out.
Kuambü: poética e política em uma festa xinguana
Authors: Guerreiro Antonio , Pereira Novo Marina
Published: November 2020

O objetivo deste artigo é discutir algumas relações entre poética e política no Alto Xingu, a partir da análise de canções do ritual kuambüentre os Kalapalo (falantes de língua karib daquela região). Por meio da repetição de canções compostas por outros ou de improvisos, o kuambüé um contexto marcado pela expressão musical pública de conflitos, medos, acusações, demandas ou reflexões sobre problemas cotidianos. Este trabalho analisa um fragmento deste repertório, buscando evidenciar algumas das características dos cantos, e compreender as relações entre as composições e as situações que lhes deram origem. Pretende-se demonstrar como este ritual, com seu tom ao mesmo tempo grave e jocoso, constitui um momento em que fraturas micropolíticas do cotidiano podem ser expostas e negociadas por meio de uma linguagem poética, revelando uma face geralmente oculta da socialidade do grupo local e criando condições para sua reinvenção.
Língua(s): cosmopolíticas, micropolíticas, macropolíticas
Authors: Franchetto Bruna
Published: November 2020

O Brasil é um país decididamente multilíngue. A surpreendente diversidade de línguas e variedades dialetais, que para muitos pode ser uma descoberta, pouco conhecida e ameaçada, é o primeiro ponto para o qual este artigo quer chamar a atenção. Fala-se em “língua”, mas esta palavra e os sentidos a ela associados, sobretudo no senso comum, são raramente postos em discussão. Aquém e além de uma definição estritamente linguística, “língua” é basicamente um construto ideológico ocidental, não compartilhado, como tal, pelas línguas ameríndias, onde outras palavras, sentidos e micropolíticas são mobilizados. O mesmo pode ser dito dos mitos ocidentais sobre a “origem” da linguagem/línguas, já que palavras, falas e conceitos ameríndios apontam para outras visões e apreensões. A partir de uma interpretação da “dança dos números” a respeito das línguas originárias no Brasil, outro tema abordado diz respeito aos não poucos movimentos de retomada de línguas originárias, consideradas “extintas”, movimentos efervescentes, sobretudo no nordeste brasileiro. A última parte do texto volta às macropolíticas pressupostas e implicadas pelas desventuras das línguas ameríndias no cenário englobante da escolarização, da escrita, de leis e da retórica oficial.
Impact of Argument-Based Laboratory Method on Scientific Process Skills of Pre-Service Primary School Teachers and Their Views of The Nature of Science
Authors: Köseler Ceren , Kalyon Demet Sahin
Published: November 2020

The present study aimed to determine the impact of argument-based laboratory method on the scientific process skills of pre-service primary school teachers and their views on the nature of science.The study was designed based on the pretest-posttest quasi-experimental method and conducted with 64 sophomore pre-service primary school teachers (37 in the experimental group, 37 in the control group) studying a Primary Education Department. The dependent variables of the studies are the views of the pre-service primary school teachers on the nature of science and their scientific process skills, while the independent variable of the study was argument-based laboratory application The nature of science scale and scientific process skills tests were used as the data collection tools. The Argument Driven Inquiry approach was employed in the experimental group, while a conventional laboratory approach was implemented in the control group. The findings of the study revealed that the argument-based laboratory method have improved the student views on NOS and their scientific process skills.
Behaviour of steel beam-column connections, made using bolted end plates
Authors: Johnstone N. D. , Walpole W. R.
Published: November 2020

Simulated earthquake loading was applied to four cruciform specimens, that represented part of a multistorey frame, including the half-beams and half-columns framing into a typical interior joint. This was made by welding plates on to the ends of the beams and bolting these plates to the column flanges using high strength proof loaded bolts. The joints were designed so that recommendations, previously developed elsewhere for monotonic loading, together with the rules given by New Zealand Standard 3404:1977, could be studied. When the existing rules were followed ductile specimens were obtained; however, when some of the joints were deliberately designed to be understrength, failure modes were obtained that were not predicted by the existing simple design methods.
Determinants of Career Intentions of Accounting Students
Authors: Amaning Newman , Anim Reindolph Osei , Kyere Alexander , Peprah-Amankona Godfred
Published: November 2020

This study examines the determinants of accounting students’ career intentions. The study adopted survey questionnaires developed on a 5-point Likert’s scale to collect primary data from 231 final year university students pursuing accounting across Ghana using purposive sampling technique. The study employed the use of PLS-SEM to conduct Regression Analysis. The outcome of the study reveals that the relationship between the future plan and career intentions of accounting students is significantly positive, and a positive perception on the accounting profession influences the accounting student to pursue a career in accounting. Thus, future plans and students’ perception on professional examinations influence the career intentions of the accounting students in Ghana. The study recommends that future studies should explore the effects of other important variables including race, culture, religion, marital status, etc. on the career intentions of accounting students.
Achievements in Research and Teaching—Investigating the Effect of Age and Gender
Authors: Eckhaus Eyal , Davidovitch Nitza
Published: November 2020

Purpose. This study deals with the research and teaching achievements of faculty members as affected by demographics. The topic of age of employment, as well as age of retirement, is one that occupies modern society, both in research and with regard to the significance of age for the labor world in practice. Gender-related differences regarding this issue have occupied the academic literature as well. In the current study we examined the impact of age and gender on research output (by number of citations) and satisfaction with teaching (by student survey scores).

Method. Empirical data on article citations and teaching surveys were gathered for 315 senior faculty members at Ariel University, Israel. Structural equation modeling was used to test the model’s goodness-of-fit. Findings indicate that the higher the age of the faculty members the greater their output. The opposite is true of teaching surveys. Age appears to contribute to the number of article citations and less so to students’ satisfaction with the teaching of senior faculty members. A sensitivity analysis was also performed. Men were found to have a higher number of citations than women.

Results and discussion. The research findings have practical meaning. The achievements of academic faculty members are undoubtedly age-dependent: seniority and experience contribute to research (number of citations) and do not contribute to teaching as measured by student satisfaction. The question is whether in the modern era, when quality of life and life expectancy are on the rise, there is room to breach the employment age limitations in academia, particularly for high academic producers, in light of their achievements.
Sustainability Effort Acceleration as Measured by Increased Propensity of Corporate Social Responsibility
Authors: Reavis Mark Ray , Tucci Jack E.
Published: November 2020

Corporate Social Responsibility (CSR) is the foundational bedrock for sustainability efforts. Corporate Social Responsibility is also becoming the norm rather than the exception due to social awareness created by curricula that highlights areas of both social and environmental inequality and has recently emerged as a bona fide strategic option globally. Howe and Straus predicted the growth of Corporate Social Responsibility in their seminal work, Millennials Rising. This paper extends and validates that earlier work through the illumination of recent causal factors and changes in society. The combination of proactive equality initiatives resulting in changes in leadership and value anchoring by college major illustrates that millennials’ ethos more strongly align with both social and environmental sustainability philosophies. The forthcoming millennial upheaval, as posited by Howe and Strauss, is evidenced by “strong belief statements” as interpreted by the raters in this study.
Comparison of different standardised bond strength tests and the influence of glycine powder treatment in composite resin repairs
Authors: Herrmann Gregor , Reimann Susanne , Daratsianos Nikolaos , Weber Anna , Keilig Ludger , Nadal Jennifer , Bourauel Christoph
Published: November 2020

Aim: The repair of restorations is an eligible method to extend the survival rates of intraoral restorations. There is a consensus that the old surface has to be removed before repair by the use of a sandblaster or rotating instruments. This study aimed to investigate whether a glycine powder can be used successfully in composite repair by measurement of shear and tensile bond strength according to dental standards.

Methodology: The influence of mechanical preparation by no powder, 25 µm glycine powder or 50 µm aluminium-oxide powder and chemical conditioning by the use of bonding, phosphoric acid and bonding or bonding, phosphoric acid and a silane on the repair bond strength of an artificially aged nano-hybrid composite was tested according to the guidelines of DIN 13990 (2017), ISO 29022 (2013) and ISO/TS 11405 (2015). The fracture modes were evaluated by adhesive, cohesive or mixed failures.

Results: There was no significant difference in the performance of the different mechanical and chemical treatments. The shear bond test according to DIN 13990 (2017) produces higher repair bond strengths (26.0±8.9 MPa) than the test described in ISO 29022 (17.9±6.3 MPa). The tensile bond strength according to ISO/TS 11405 (6.9±1.8 MPa) was the lowest. Most adhesive failures occurred with the shear test according to ISO 29022 (41%), followed by DIN 13990 (18%) and the tensile test (4%).

Conclusion: For evaluating the bond strength of composites the test described in ISO 29022 is recommended, because it produces the highest percentage of adhesive failures. Nano-hybrid-composites are robust to different repair protocols.

 

How to cite this article:

Herrmann GP, Reimann S, Daratsianos N, Weber A, Keilig L, Nadal J, Bourauel C. Comparison of different standardized bond strength tests and the influence of glycine powder treatment in composite resin repairs. Int Dent Res 2020;10(1):36-43. https://doi.org/10.5577/intdentres.2020.vol10.no2.2 

 

Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
The validity of the Community Periodontal Index of Treatment Needs (CPITN) in epidemiological studies of periodontal diseases
Authors: Tanık Abdulsamet , Gül Mehmet
Published: November 2020

Objectives: The aim of this study was to evaluate the validity of partial CPITN (PCPITN) and full-mouth CPITN (FCPITN) indexes from CPITN index versions used in the diagnosis of periodontal disease.

Method: The study included 1,000 patients over the age of 20. The clinical attachment loss examination and clinically assisted full-mouth periodontal examination (gold standard) including the depth of the periodontal pocket on probing and dental stones were performed. PCPITN and FCPITN index versions were compared with the gold standard oral examination. Sensitivity, specificity and diagnostic estimation tables were statistically created from the obtained data.

Results: For Gingivitis, the sensitivity of the PCPITN index was found to be 68.88%, specificity was 85.94% and the field value under the Receiver Operating Characteristic (ROC) curve was 0.6893. For periodontitis, FCPITN index sensitivity was 89.28%, specificity was 96.56% and field value under the ROC curve was 0.931.

Conclusion: Although FCPITN and PCPITN indexes have a near moderate value in the diagnosis of gingivitis, they were found to be more effective in the diagnosis of periodontitis. We think that the FCPITN index is particularly effective in the diagnosis of periodontitis.

 

How to cite this article:

Tanık A, Gül M. The validity of the Community Periodontal Index of Treatment Needs (CPITN) in Epidemiological Studies of Periodontal Diseases. Int Dent Res 2020;10(2):44-48. https://doi.org/10.5577/intdentres.2020.vol10.no2.3

 

Linguistic Revision: The English in this manuscript has been checked by at least two professional editors, both native speakers of English.
Uma Mudança em Andamento: a Troca de “Casa” da Torcida do Clube Náutico Capibaribe sob o Olhar da Casa e da Rua de Roberto DaMatta
Authors: Ferreira Bruno Rafael Torres , Leão André Luiz Maranhão de Souza
Published: November 2020

A reformulação dos estádios para a Copa do Mundo ilustra a chegada do conceito de arena ao futebol brasileiro. Nesse contexto, a Arena Pernambuco converteu-se em uma parceria entre o consórcio responsável pela gestão da arena e o Clube Náutico Capibaribe. A associação promove uma situação nova para a torcida alvirrubra, que se depara com a mudança do Estádio dos Aflitos, que congrega muito da história do clube, para a Arena Pernambuco, um novo modelo de estádio. Assim, buscamos compreender como a torcida do Náutico significa esses espaços sociais. Para tal, realizamos uma etnografia da comunicação e usamos a perspectiva teórica de Roberto DaMatta como lente para interpretação dos achados, que nos levaram a refletir como esses estádios ganharam significados a partir de dois pontos de vista: um ligado a uma visão de mundo específica de uma sociedade e outro fundamentado nas regras e valores de uma ordem social vigente.
O Olhar Político para o Futebol em seu Período de Profissionalização: Um Estudo Comparado dos Casos do Brasil (1933-1941) e da Colômbia (1948-1954)
Authors: Gomes Eduardo De Souza
Published: November 2020

Este trabalho tem por objetivo a investigação dos processos de profissionalização do futebol ocorridos no Brasil (1933-1941) e na Colômbia (1948-1954), assim como seus efeitos políticos e sociais em cada caso. Tendo em vista que esses processos ocorreram em importantes momentos políticos, tanto no Brasil quanto na Colômbia, entender os usos do futebol e do esporte pelos governos do período é um fértil caminho para se compreender os países que aqui são estudados.  Assim, buscaremos demonstrar que as relações entre esporte e política nos períodos analisados, foram fundamentais no processo de popularização do futebol nos dois países, de forma que o consolidasse como sinônimo de identidade para brasileiros e colombianos.
A Prática da Governança Corporativa e sua Influência para os Stakeholders Envolvidos no Desenvolvimento de um Projeto Esportivo do SESI-SP
Authors: Varotti Felipe De Pilla , Malaia João Manuel
Published: November 2020

O SESI-SP, entidade sem fins lucrativos, firmou parceria com o British Council e Premiership Rugby para desenvolver o projeto esportivo TRY Rugby-SP.  Essas entidades internacionais, impulsionadas pelo cenário favorável ao crescimento do rúgbi no Brasil, procuravam uma organização esportiva que possuísse uma estrutura de gestão semelhante a que utilizam. Visualizaram no SESI-SP os princípios de Governança Corporativa. Por meio de uma pesquisa qualitativa e exploratória, utilizando-se de um estudo de caso, analisamos como a Transparência, Equidade, Prestação de Contas e Responsabilidade Corporativa, ou seja, boas práticas de Governança Corporativa, foram utilizadas para desenvolvimento do projeto esportivo TRY Rugby-SP. Verificamos também como a Governança Corporativa influenciou os principais stakeholders - British Council e Premiership Rugby  - e os motivos que os levaram a ter credibilidade no SESI-SP para que aportassem recursos neste projeto. Os dados foram coletados utilizando a triangulação com as seguintes ferramentas: Observação e participação direta de um dos pesquisadores, Análise de Documentos e Entrevistas. Os sujeitos deste estudo foram os stakeholders principais envolvidos, somente aqueles que aportaram recursos financeiros para a execução do projeto. O sistema de gestão e as boas práticas de Governança Corporativa do SESI-SP foram fundamentais para atrair o interesse de stakeholders. Assim, contribuímos para que organizações esportivas compreendam e passem a adotar as boas práticas da Governança Corporativa, valorizando a sua imagem institucional perante os seus possíveis stakeholders e atraindo maiores investimentos para execução de seus projetos.
Análise do Comportamento do Consumidor Esportivo em Relação à Memória e Preferência de Marca: Um Estudo de Caso da Maratona de São Paulo
Authors: Carlassara Eduardo De Oliveira Cruz , Parolini Pedro Lucas Leite , Rocco Junior Ary José
Published: November 2020

Nos últimos anos, o mercado de corrida de rua apresentou forte crescimento e evolução. O foco, nos eventos da modalidade, não mais está nos atletas profissionais e sim em atletas amadores que buscam, acima de tudo, a prática de uma atividade física e o entretenimento. Neste cenário, empresas passam a adotar os eventos de corridas de rua como plataforma de relacionamento com o público praticante em questão. O objetivo do presente artigo é analisar o comportamento do consumidor esportivo em relação à memória e preferência por determinada marca de material esportivo, em detrimento de outra, na Maratona de São Paulo. A efetividade das estratégias de relacionamento de cada empresa é colocada em análise uma vez que ditam as preferências dos participantes do evento.
Relações entre Dimensões da Experiência, Satisfação, Recomendação e Intenção de Retornar: a Percepção de Participantes de Evento Cultural Resumo
Authors: LoBuono Raquel , Gosling Marlusa De Sevilha , Gonçalves Carlos Alberto , Medeiros Sandro Alves
Published: November 2020

A experiência de consumo ganhou importância na área de marketing nas últimas décadas. No entanto, a mensuração dessa dimensão ainda é recente e restrita em relação a sua aplicabilidade. Diversos autores elaboraram escalas que medem a experiência de consumo no contexto das marcas, eventos esportivos e eventos turísticos. Os eventos podem ser utilizados como meio de promoção das experiências porque os consumidores têm a chance de se envolver em atividades que não são possíveis nas suas vidas diárias. O evento objeto de estudo do presente trabalho é a Virada Cultural 2014 de Belo Horizonte, evento cultural realizado pela segunda vez consecutiva na capital mineira durante um final de semana. O estudo buscou compreender as experiências dos participantes da Virada Cultural a partir de uma escala de experiência memorável turística elaborada e testada em outro trabalho. Para isso, foi realizada uma pesquisa de caráter descritivo com uma abordagem quantitativa por meio a aplicação de um survey durante o evento. Os principais resultados foram (1) a dimensão hedonismo foi a mais impactante para Experiência Memorável e a Cultura Local como a menos impactante; (2) a  relação positiva e significante entre Experiência Memorável e satisfação e (3) a relação positiva e significante entre Satisfação e Intenção de Retorno nas próximas edições e a Recomendação boca a boca para pessoas próximas.
Ephemerum homomallum (Pottiaceae) and Torrentaria aquatica (Brachytheciaceae), Two Additional American Moss Species New to Africa
Authors: Ochyra Ryszard , Van Rooy Jacques , Bryan Vírginia S.
Published: November 2020

Two American species of moss, Ephemerum homomallum Müll. Hal. (Pottiaceae) and Torrentaria aquatica (A. Jaeger) Ochyra (Brachytheciaceae), are reported as new to Africa, based on collections from the Limpopo and Eastern Cape provinces of South Africa, respectively. These discoveries changed the phytogeographical status of both species, which now belong to the Afro-American distribution element. Global geographical ranges of these two species are reviewed and mapped, and the amphiatlantic distribution pattern of mosses is briefly summarized. A history of the muscological exploration of southern Africa is briefly considered and recent additions to the moss flora of this area are reviewed.
Sisteme moderne de distributie. Multilevel marketing
Authors:   Editura Universitara, Purcaru-Ciongradi Ioana-Madalina
Published: November 2020

Prezenta lucrare isi propune sa realizeze studiul privind analiza si interpretarea conceptelor de multilevel marketing. Lucrarea este structurata in cinci capitole majore, tratand urmatoarele aspecte: aspect conceptuale si metodologice privind sistemele moderne de distribuție, stadiul actual al cunoasterii in domeniul sistemelor de multilevel marketing, particularitați ale comportamentului consumatorului si ale pieței sistemelor de multilevel marketing, analiza politicilor si strategiilor de marketing utilizate in multilevel marketing si un program de marketing privind promovarea produselor si serviciilor oferite de sistemele mlm prin intermediul platformelor social media.
Mineração de Dados Educacionais a partir da Interação de Alunos com uma Plataforma Educacional
Authors: Barreto Lucas , Monteiro Edwin , Leitão Gabriel , Bentes Thays , Barreto Raimundo
Published: November 2020

O objetivo principal deste artigo é propor um método de análise de dados, baseado em mineração de dados educacionais e algumas métricas de aprendizagem, a partir da coleta automática de dados da interação de estudantes com questionários de múltipla escolha. Estas análises servirão de base para a sugestão de ações a serem tomadas visando a melhoria do processo de ensino/aprendizagem. Experimentos foram conduzidos em diversas turmas de uma escola pública de nível médio embora, neste artigo, o foco será apresentar as análises de uma única turma. Os resultados experimentais mostram que o método proposto é promissor, uma vez que fornece, para cada estudante, as métricas de aprendizagem, as prioridades dos tópicos de estudo e análises baseadas no grau de dúvidas, no tempo de resposta e nos tópicos com maior e menor número de acertos.
Um modelo para detecção automática do comportamento de tentativa e erro em STI baseado em passo
Authors: Castilhos Fábio M. , Morais Felipe , Azevedo Otávio Bastos , Jaques Patricia A.
Published: November 2020

Este artigo apresenta um modelo baseado em aprendizado de máquina para detecção automática do comportamento de tentativa e erro em um Sistema Tutor Inteligente baseado em passos. Esse modelo foi treinado com base nos dados obtidos através da observação e análise de vídeos e dos logs de interação do aluno com o sistema. Após o desenvolvimento de um protocolo de anotação, rotulamos as ações dos alunos com a ocorrência ou não do comportamento de abuso de tentativa e erro. Submetemos o modelo a dados não usados previamente, nos quais o modelo alcançou um Kappa de 0,684.
CRISP-EDM: uma proposta de adaptação do Modelo CRISP-DM para mineração de dados educacionais
Authors: Ramos Jorge Luis Cavalcanti , Rodrigues Rodrigo Lins , Silva João Carlos Sedraz , Oliveira Pamella Letícia Silva de
Published: November 2020

Este artigo teórico apresenta uma proposta de adaptação do consolidado modelo de mineração de dados CRISP-DM, para cenários de dados educacionais, sejam eles provenientes de plataformas de ensino online ou de fontes como exames nacionais de curso ou mesmo de sistemas de gestão acadêmica. Apesar de seguir integralmente as seis etapas do modelo original, o modelo proposto, aqui denominado de CRISP-EDM, apresenta algumas particularidades em razão dos tipos de dados e do domínio educacional. O modelo já foi usado em duas teses de doutorado aprovadas e agora é apresentado com mais detalhes neste trabalho. Espera-se com isso, dar uma contribuição às pesquisas na área de mineração de dados educacionais.
A data-driven approach for the identification of misconceptions in step-based tutoring systems
Authors: Gomes Joice Cazanoski , Jaques Patricia A.
Published: November 2020

Math errors are an important part of the learning process. For this reason, diagnosing them can help teachers and intelligent learning environments to choose the most appropriate type of assistance for the learner. In particular, the identification of learner misconceptions can be of special importance because they represent a misunderstanding of math concepts. In this context, this paper proposes the use of clustering algorithms to automatically identify algebra misconceptions from learners' algebra problem-solving steps in an intelligent learning environment. The computing platform is an intelligent tutoring system that assists students when solving linear equations step by step, by giving minimal and error feedback. The results showed that the model was able to identify some misconceptions already known in the literature, which illustrates the appropriateness of our approach. The automatic identification of misconceptions can help in the identification of new conceptual misunderstanding from large datasets of math problem solving, besides give valuable information for teachers and intelligent learning environments to adapt their instruction and assistance.
Discovery of Research Gaps in Game Learning Analytics Applications on Learning Processes
Authors: Silva Gabriel , Rodrigues Rodrigo Lins , Campos Filho Amadeu Sá , Amorim Américo
Published: November 2020

The benefits of game applications in the field of education have been increasingly evident due to the use of Game Learning Analytics, which is the collection, analysis and extraction of information from data obtained through Serious Games. In this article, this article aims to carry out a systematic mapping in order to identify research gaps in studies that use Game Learning Analytics to analyze an educational process, analyzing the observed educational phenomenon, the algorithms or techniques used and the characteristics and number of participants. We understand that even though the Game Learning Analytics area is still very new, it has enormous potential in helping what we value most, teaching.
Análise de modelo para a tomada de decisões pedagógicas em um ambiente voltado ao aprendizado de algoritmos
Authors: Maranhão Djefferson S. S. , Raposo Antonio Carlos , Soares Neto Carlos De Salles
Published: November 2020

O presente trabalho analisa de forma qualitativa o emprego de POMDP como modelo para a tomada de decisões pedagógicas em um ambiente voltado ao aprendizado de algoritmos. A questão a ser enfrentada é o sequenciamento de problemas computacionais em ambientes de tutoria inteligente, tendo em vista ser uma prática comum a proposição de problemas computacionais em cursos introdutórios de algoritmos. O sequenciamento das atividades foi encarado como um processo de decisão sequencial sob incerteza, vez que o tutor não sabe exatamente em qual estado de conhecimento o aluno está atualmente. A principal contribuição deste trabalho foi mostrar que o modelo pode ser aplicado de forma satisfatória ao processo de tutoria inteligente, tendo em vista que os alunos foram guiados pelos caminhos que ofereciam os maiores ganhos de conhecimento.
Tempos de Transição em Estados de Corretude e Erro como Indicadores de Desempenho em Juízes Online
Authors: Santos Ingrid Lima dos , Oliveira David Braga Fernandes , Carvalho Leandro Silva Galvão de , Pereira Filipe Dwan , Oliveira Elaine Harada Teixeira de
Published: November 2020

Turmas de Introdução à Programação de Computadores (IPC) tipicamente apresentam altos índices de reprovação. Com efeito, muitos estudos vêm sendo conduzidos para entender de modo holístico como os alunos desenvolvem soluções e quais comportamentos podem ter um impacto positivo ou negativo no desempenho deles. Nesse sentido, este estudo propõe e valida um modelo de transições de estados em um Juiz Online (JO) com ênfase em turmas de IPC. O modelo leva em consideração o tempo de transição de estados de corretude e erro das soluções desenvolvidas e avaliadas por 489 alunos de 9 turmas de IPC em um JO. Como resultado, pode-se verificar uma correlação moderada para alta entre o tempo gasto em transições de submissão incorreta e correta e o desempenho final do estudante de IPC.