bluuebunny/crossref_metadata_2025 huggingface dataset:
On Inca astronomical instruments: the observatory at Inkaraqay – El Mirador (National Archaeological Park of Machu Picchu, Peru)
Authors: Astete Victoria Fernando , Ziółkowski Mariusz , Kościuk Jacek
Published: January 2020

Th is article is dedicated to a special category of structures that may be called “astronomical instruments”,  constructed in the Inca Empire (ca. 14-16 c. AD). As mentioned in some sources, these were intended for use by a small group of priests-astronomers. A good example is Intimachay in Machu Picchu, which was recently re-designated as an astronomical observatory, far more complex and precise than was previously believed. Th e discovery of Inkaraqay – El Mirador, a second structure, even more complicated than Intimachay and erected for the purpose of precise astronomical observation, confi rms the importance of the knowledge of the skies in the running of the Incan Empire.
CONTRIBUIÇÕES DA EDUCAÇÃO FÍSICA À FORMAÇÃO HUMANA INTEGRAL NO ENSINO MÉDIO INTEGRADO
Authors: Márcio Araujo Sobrinho Eder , Oliveira Marins Azevedo Rosa , Antonio Stefanuto Vanderlei
Published: January 2020

O presente artigo constitui-se de uma reflexão teórica sobre a Educação Física como componente curricular obrigatório no Ensino Médio Integrado. Partindo do desenvolvimento da disciplina no contexto escolar brasileiro, desde sua origem com cunho militarista e higienista, até a chegada do movimento renovador que trouxe novas concepções e correntes metodológicas com enfoque na cultura corporal, com ideais que se relacionam com a formação humana integral ou omnilateral. Nesse sentido, tivemos como objetivo identificar quais as contribuições da Educação Física enquanto componente curricular à Formação Humana Integral no Ensino Médio Integrado. Para tanto, baseamo-nos nos conceitos da abordagem critico-superadora da Educação Física. Essa abordagem busca a superação de um modelo tecnicista e mecanicista, focada na relevância social dos conteúdos propostos pela Educação Física no Ensino Médio, proporcionando ao aluno a capacidade de compreender e intervir de maneira eficaz na realidade social que vive. Nesse sentido a Educação Física, com base na cultura corporal, pode contribuir para a Formação Humana Integral, oferecendo uma oportunidade de articulação entre os saberes próprios do componente curricular com as questões ligadas ao mundo do trabalho e, consequentemente, contribuem para que os alunos possam agir com mais autonomia, tendo uma visão crítica sobre aspectos socioculturais os quais estão inseridos.
MARIELLE VIVE! - O GRAFFITI COMO GÊNERO TEXTUAL COM POTENCIAL CRÍTICO PARA O ENSINO DA LÍNGUA PORTUGUESA
Authors: Santos Leonardo Bis dos , Leite Priscila de Souza Chisté
Published: January 2020

O objetivo deste estudo é apresentar o grafitti (arte urbana) como uma possibilidade de trabalho com gêneros textuais no ensino da língua portuguesa. Partimos da hipótese de que cabe a escola estimular o contato e a interpretação de textos que extrapolem abordagens tradicionais, muitas vezes recorrentes no contexto escolar. Como modo de exemplificar a proposta, discorremos um grafitti a partir dos princípios constitutivos da textualidade, apontados por Robert-Alain de Beaugrande e Wolfgang Dressler, em especial, os princípios da coesão, da intencionalidade, da situacionalidade e da intertextualidade e por metodologia de estudo de imagem, dando ênfase aos aspectos formais, contextuais, intertextuais e de conteúdo da obra em estudo. O texto verbo-visual apresentado foi registrado na Avenida Paulista, na cidade de São Paulo e remete ao assassinato da vereadora Marielle Franco. Por meio desse texto, com base nos pressupostos teóricos acima mencionados, constatamos que tais princípios constitutivos da textualidade, acrescidos de instrumental de análise imagética, contribuem para a compreensão de textos diferentes dos escritos, e podem servir de norteadores para a realização de relatos que visem compreender o texto para além de sua forma e da mera decodificação. Consideramos que cabe ao ensino da língua portuguesa, por meio de professores atentos, estimular os discentes a alçarem a condição de leitores críticos e responsivos, capazes de promoverem a discussão e o entendimento da realidade, visando à divulgação e potência das lutas sociais em defesa dos grupos marginalizados.
PRODUÇÃO DE BIODIESEL UTILIZANDO ÓLEO DE SOJA DESCARTADO POR ESTABELECIMENTO COMERCIAL ALOCADO NO IFES, CAMPUS CACHOEIRO DE ITAPEMIRIM-ES
Authors: Castelan Marques Fabielle , Alves Ingrid Larissa , Rodrigues Junior Edmundo , Pereira de Oliveira Paulo Jose , Fazolo Repossi Bruno
Published: January 2020

A maior parte de toda energia consumida no mundo provém do petróleo, do carvão e do gás natural. Essas fontes são limitadas e com previsão de esgotamento nas próximas décadas, portanto, a busca por fontes alternativas de energia é de suma importância, na mitigação dos efeitos ambientais causados pelos combustíveis fósseis, bem como flutuações de preços do petróleo. Uma alternativa possível ao combustível fóssil é a produção de monoalquil éster de ácidos graxos de cadeia longa através de óleos de origem vegetal, os quais podem ser denominados de biodiesel. O presente artigo tem como objetivo, produzir biodiesel por reação de transesterificação, utilizando o óleo de soja usado para uma possível aplicação na indústria local, diminuindo assim a emissão de resíduos no Rio Itapemirim, e do consumo de combustíveis fósseis. O material de partida, bem como o biodiesel obtido pela reação de transesterificação foi analisado em seus parâmetros mais importantes tais como: densidade, viscosidade, índice de acidez, índice de iodo e índice de saponificação e espectroscopia na região do UV-Vis, segundo metodologia preconizada na literatura. O rendimento da reação foi de 84,71% para o biodiesel proveniente do óleo in natura e 81,39% no biodiesel proveniente do óleo residual. Os dados físico-químicos obtidos no material de partida bem como no biodiesel resultante mostraram uma boa viabilidade na produção do combustível em escala piloto ou em escala industrial, porém, consideramos que o projeto se apresenta como sugestão para diminuição da poluição do Rio Itapemirim em pelo menos um dos parâmetros, no entanto, entendemos que ainda é necessário um aprofundamento na otimização da produção do biodiesel.
PENGARUH PENGGUNAAN ASI PADA PERAWATAN LUKA PERINIEM DENGAN LAMA WAKTU PENYEMBUHAN LUKA PERINIUM
Authors: Mutmainnah Annisa Ul , Noorbaya Siti
Published: January 2020

Childbirth is a natural process, but sometimes labor can also cause birth canaltrauma, especially in the aluminum region, this trauma can be injuries to the periniumarea, the cause can be intentional biases such as episiotomy or unintentional actions such as spontaneous tears in the process of removing the baby. Injury to the perineum if not treated properly can cause postpartum infection because the wound area will be a medium for developing germs. The purpose of this study was to analyze the effect of the use of breast milk in the treatment of periniem wounds with the duration of perinium wound healing at the Ramlah Parjib Clinic in Samarinda. The method used in this study was Posttest Only Control Group Desigen research subjects were postpartum motherswith a sample of 60 respondents taken by random sampling and grouped based on treatment using ASI. Data analysis using ANOVA test. The results showed that the use of ASI had a significant effect on the treatment of periniem wounds with a healing time seen from the P value of 0,000. Conclusion: Periniuem wound care techniques are factors that influence the duration of perinieum wound healing
Outcome Assessment Following Total Hip Replacement
Authors: Learmonth I D , Cavendish V J
Published: January 2020

abstract

Outcome assessment after hip arthroplasty is relevant both to in-depth research of specific procedures and to monitoring standards of practice. Instruments of outcome assessment should be fast, easy to use, reliable, specific to the question being asked, cost-effective, and applicable. Increasing evidence exists that patient-based outcome measures are more reliable than those based on clinicians' scores. This article reviews the types of instruments that are available and offers guidance about the outcome measures that are most appropriate for orthopedic surgeons.
Effect of Hip Stem Taper on Cement Stresses
Authors: New A M R , Taylor M , Wroblewski B M
Published: January 2020

abstract

The aim of this study was to use finite element models to investigate the effect of the design of the taper of polished, collarless, total hip replacement femoral components on stresses in the cement mantle surrounding the component. A single-taper prosthesis, double-taper prosthesis, and triple-taper prosthesis were compared. Peak stresses and stress distributions in the cement mantle were found to be a function of taper design, although the differences between designs were minor. Using a probability of failure technique based on the initial cement stress distribution, a triple-taper prosthesis was predicted to cause less cement mantle damage (0.1 5% of the volume of the cement mantle failing after 20 million loading cycles) than a doubletaper prosthesis (0.74%) or a single-taper prosthesis (1.50%). Further research is required to confirm this finding.
Antibiotic-Loaded Cement in Total Hip Replacement: Current Indications, Efficacy, and Complications
Authors: Jiranek William
Published: January 2020

abstract

Antibiotic-loaded bone cement has been used since the 1960s, and its advantages in the treatment of existing prosthetic infections have been repeatedly demonstrated. Care should be taken to match the antibiotic to the infecting organism, and cement intended for long-term prosthetic fixation should not contain >2 g of antibiotic powder per 80 g of polymethylmethacrylate. The use of antibiotic-loaded bone cement for prophylaxis against infection is controversial and should be used on an individual risk-benefit basis for patient groups at highest risk for development of deep infection.
Role of Adversity Quotient (AQ) on Perceived Stress of Managers: with specific reference to AQ Dimensions
Authors: Somaratne C. S. N. , Jayawardena L. N. A. C. , Perera B. M. K.
Published: January 2020

The aim of this study was to investigate the relationship between Adversity Quotient (AQ) and levels of perceived stress of middle-level managers employed in the Sri Lankan Non-Governmental Organisational (NGO) sector. Using a questionnaire survey 223 responses were collected. The data analysis included mean difference analysis and regression analysis. Age, work experience, and academic qualifications were found to significantly influence the level of AQ. However, gender and marital status recorded no such influence on AQ. Results further revealed higher AQ levels among managers of International NGOs. In addition, the study found that dimensions of AQ predict the variance in perceived stress. Only age and marital status among demographic factors explained the variance in perceived stress. The type of NGO was not a significant determinant in explaining the level of perceived stress. Further, AQ revealed no significant moderation between demographic factors and perceived stress. These empirical evidences signify that stress models can consider addition of AQ in future research. An integrated study among NGO, private, and public sector organisations is recommended. AQ serves as an important factor in training and development, selection process, and performance management.
Microbiological diagnosis of tuberculous meningitis
Authors: Garg Ravindra Kumar
Published: January 2020

Tuberculous meningitis (TBM) is a commonly encountered central nervous system infection. Characteristic clinical, imaging and cerebrospinal fluid parameters help clinicians to make a prompt presumptive diagnosis that enables them to start empirical anti-tuberculosis treatment. There are several close mimic to TBM, such as partially treated pyogenic meningitis, fungal meningitis, sarcoidosis, meningeal metastases and meningeal lymphomatosis. Microbiological confirmation instils a sense of confidence amongst treating physicians. With conventional phenotypic methods (cerebrospinal fluid microscopy and culture), in more than 50 per cent patients, microbiological confirmation is not achieved. Moreover, these methods take a long time before providing conclusive results. Negative result does not rule out Mycobacterium tuberculosis infection of the brain. Genotypic methods, such as IS6110 polymerase chain reaction and automated Xpert M. tuberculosis/rifampicin (MTB/RIF) assay system improved the TBM diagnostics, as results are rapidly available. Xpert MTB/RIF assay, in addition, detects rifampicin resistance. Xpert MTB/RIF Ultra is advanced technology which has higher (60-70%) sensitivity and is being considered a game-changer in the diagnostics of TBM. A large number of TBM cases remain unconfirmed. The situation of TBM diagnostics will remain grim, if low-cost technologies are not widely available. Till then, physicians continue to rely on their clinical acumen to start empirical anti-tuberculosis treatment.
Clinical Impact of Somatic Variants in Homologous Recombination Repair-Related Genes in Ovarian High-Grade Serous Carcinoma
Authors: Choi Min Chul , Hwang Sohyun , Kim Sewha , Jung Sang Geun , Park Hyun , Joo Won Duk , Song Seung Hun , Lee Chan , Kim Tae-Heon , Kang Haeyoun , An Hee Jung
Published: January 2020

PurposeIn this study, we investigated the frequencies of mutations in DNA damage repair genes including BRCA1, BRCA2, homologous recombination genes and TP53 gene in ovarian high-grade serous carcinoma, alongside those of germline and somatic BRCA mutations, with the aim of improving the identification of patients suitable for treatment with poly(ADP-ribose) polymerase inhibitors.Materials and MethodsTissue samples from 77 Korean patients with ovarian high-grade serous carcinoma were subjected to next-generation sequencing. Pathogenic alterations of 38 DNA damage repair genes and TP53 gene and their relationships with patient survival were examined. Additionally, we analyzed BRCA germline variants in blood samples from 47 of the patients for comparison.ResultsBRCA1, BRCA2, and TP53 mutations were detected in 28.6%, 5.2%, and 80.5% of the 77 patients, respectively. Alterations in RAD50, ATR, MSH6, MSH2, and FANCA were also identified. At least one mutation in a DNA damage repair gene was detected in 40.3% of patients (31/77). Germline and somatic BRCA mutations were found in 20 of 47 patients (42.6%), and four patients had only somatic mutations without germline mutations (8.5%, 4/47). Patients with DNA damage repair gene alterations with or without TP53mutation, exhibited better disease-free survival than those with TP53 mutation alone.ConclusionDNA damage repair genes were mutated in 40.3% of patients with high-grade serous carcinoma, with somatic BRCA mutations in the absence of germline mutation in 8.5%. Somatic variant examination, along with germline testing of DNA damage repair genes, has potential to detect additional candidates for PARP inhibitor treatment.
Effect of Genotypes and Sugar Type on Callus Formation and Plant Regeneration Derived from Mature Grains of Egyptian Rice (Oryza sativa L.)Varieties
Authors: M. Abd El-Ghany M. Abd El-Ghany
Published: January 2020

The main objective of the present study was to determine the highest regenerable Egyptian rice cultivars and the best source of carbohydrates. Three medium protocols had been used to determine the in vitro culture response of mature dehusked grains in five Egyption rice cultivars. Factorial experiment in CRD design with ten replications was used to analyze the data. The obtained results showed that in vitro traits were highly significantly affected by genotypes and the interaction between medium protocols and genotypes. Whereas, medium protocols had different effects on the in vitro traits. The results also indicated that the shoot formation (%) and number of shoots per callus traits were highly significantly affected by genotypes, medium protocols and the interaction between medium protocols and genotypes. In conclusion, the cultivars, Sakha 103 and Sakha 104 could be successfully utilized in breeding programs for biotic and abiotic stress tolerance at the cellular level, because of their high frequency of shoot formation on the medium protocol C.
Language in the age of dataism
Authors: Vintar Špela
Published: January 2020

The digital age brings dramatic changes to language and communication; its effects can be seen in the ways we use language, the channels we use to communicate and the manners in which ideas are spread. From the other end of the spectrum, our linguistic behaviour, communications and knowledge are transformed into data which can be used or bought to feed intelligent technologies. The article presents a bird's eye view of this dynamics of change, first by focusing on the impact of digitisation on language itself, further by analysing current trends in the language industry where traditional services are being replaced by technology- and data-driven solutions, and finally by exploring the impact of these technologies on man and society at large. We make a case for digital linguistics as an interdisciplinary field of study which adopts a human-centred approach to the sociolinguistic, technological, economic, infrastructural and ethical issues emerging with regard to language in the digital age.
Okrogla miza "Jezik in spol"
Authors: Gorjanc Vojko , Kalin Golob Monika , Kuhar Roman , Močnik Rastko , Novak Boris A. , Šorli Mojca , Štumberger Saška , Žele Andreja
Published: January 2020

Filozofska fakulteta Univerze v Ljubljani in Komisija za slovenski jezik v javnosti pri Slovenski akademiji znanosti in umetnosti sta v torek, 23. oktobra 2018, organizirali okroglo mizo »Jezik in spol«, ki je potekala na Filozofski fakulteti v Ljubljani. Izhodišče razprave je bil sklep Senata Filozofske fakultete o izmenični rabi moške in ženske slovnične oblike za vse spole v pravilnikih Filozofske fakultete, s sogovornicami in sogovorniki pa sta organizatorja želela razpravo razširiti na vprašanja, kakšne možnosti ponuja slovenski jezik za uporabo spolno občutljivega jezika in kako v slovenskem jeziku zagotavljati vključujoč jezik v različnih družbenih situacijah. Objavljamo zapis je po posnetku dogodka, ki je na voljo na YouTubu.
Ohranjen-/a/o v prevodu: spolno občutljiva raba jezika na slovenskem oddelku Generalnega direktorata za prevajanje Evropske komisije
Authors: Šauperl Mojca
Published: January 2020

Na slovenskem oddelku Generalnega direktorata za prevajanje Evropske komisije se s spolno občutljivim jezikom ukvarjamo od leta 2016, ko smo opazili vse pogostejšo rabo spolno nevtralnega jezika v angleških izvirnikih. Tak jezik štejemo za namerno izbran način pisanja in torej za pomembno prvino izvirnika. Vendar pa spolno nevtralnega jezika običajno ni mogoče neposredno prevesti v slovenščino, in če spolno nezaznamovane oblike prevajamo z generičnim moškim spolom, je jezik prevoda seksističen. Večinoma je treba spolno nezaznamovanost v prevodu izraziti neodvisno od izvirnika. Slovenski oddelek Generalnega direktorata za prevajanje Evropske komisije je smernice za spolno občutljivo rabo jezika razvil v sodelovanju s strokovnjaki in strokovnjakinjami iz slovenske javne uprave in akademske skupnosti. Nekatera sredstva spolno občutljivega jezika so relativno neproblematična, za mnoga vprašanja pa so potrebne nadaljnje raziskave in izkušnje.
Flow Accelerated Corrosion of Carbon Steel with Droplet Impingement Using a Modified Rotating Cylinder Electrode Experiment
Authors: Esayah Amna , Kelley Madison , Howell Andrew , Shulder Stephen J. , Mishra Brajendra , Olson David , Porter Jason
Published: January 2020

In power plant cooling systems, water droplets and condensate films form due to heat transfer through cooling tube walls. Condensate films are known to cause flow accelerated corrosion on carbon steels used in air-cooled condensers. Corrosion is further accelerated by droplets suspended in the accelerating steam that impinge on walls, T-joints, or valves, further damaging protective oxide layers on pipe walls. Droplet impingement and flow accelerated corrosion were studied using a modified rotating cylinder electrode system coupled with electrochemical impedance spectroscopy. Surface liquid films caused by droplet impingement were found to correlate directly with flow accelerated corrosion caused by condensate films. In the absence of a stable liquid film, droplet impingement increased corrosion rates and resulted in pit formation. Select corrosion inhibitors were found to be ineffective under flow accelerated corrosion or droplet impingement.
Systematic comparison of five machine-learning methods in classification and interpolation of soil particle size fractions using different transformed data
Authors: Zhang Mo , Shi Wenjiao
Published: January 2020

Abstract. Soil texture and soil particle size fractions (PSFs) play an increasing role in physical, chemical and hydrological processes. Many previous studies have used machine-learning and log ratio transformation methods for soil texture classification and soil PSFs interpolation to improve the prediction accuracy. However, few reports systematically compared the performance of them in both classification and interpolation. Here, a total of 45 evaluation models generated from five machine-learning models – K-nearest neighbor (KNN), multilayer perceptron neural network (MLP), random forest (RF), support vector machines (SVM), extreme gradient boosting (XGB), combined with original and three log ratio methods – additive log ratio (ALR), centered log ratio (CLR) and isometric log ratio (ILR), were applied to evaluate and compare both of them using 640 soil samples in the Heihe River Basin in China. The results demonstrated that log ratio transformation methods decreased skewness of distributions of soil PSFs data. For soil texture classification, RF and XGB showed better performance with the overall accuracy and kappa coefficients, they were also recommended to evaluate classification capacity of imbalanced data according to the area under the precision-recall curve (AUPRC) analysis. For soil PSFs interpolation, RF delivered the best performance among five machine-learning models with the lowest root mean squared error (RMSE, sand: 15.09 %, silt: 13.86 %, clay: 6.31 %), mean absolute error (MAE, sand: 10.65 %, silt: 9.99 %, clay: 5.00 %), Aitchison distance (AD, 0.84) and standardized residual sum of squares (STRESS, 0.61), and the highest coefficient of determination (R2, sand: 53.28 %, silt: 45.77 %, clay: 53.75 %). STRESS was improved using log ratio methods, especially CLR and ILR. For the comparison of direct and indirect classification, prediction maps were similar on the middle and upper reaches and different on the lower reaches of the HRB. Moreover, indirect classification maps based on log ratio transformed data had more detailed information. There is a pronounced improvement with 21.3 % of kappa coefficient using indirect methods for soil texture classification compared to the direct ones. RF was recommended as the best strategy among these five machine-learning models according to the accuracy evaluation of soil PSFs interpolation and soil texture classification, and ILR was recommended for component-wise machine-learning methods without multivariate treatment considering the constrained nature of compositional data. In addition, XGB was preferred than other models when trade-off of accuracy and time was considered. Our findings can provide a reference for other research of spatial prediction of soil PSFs and texture using machine-learning methods with skewed distribution soil PSFs data in a large area.
VALIDATION OF THE KUMMER FRICTION MODEL FOR RUBBER COMPOUNDS ON SINUSOIDAL TRACKS BY FEA SIMULATIONS AND EXPERIMENTAL TECHNIQUES
Authors: Cugliari Jacopo , Straffi Paolo , Agoretti Pasquale , Klüppel Manfred , Meier Jens , Nanni Francesca
Published: January 2020

A refinement of the Kummer friction model is considered to determine the friction coefficient through analysis of the mechanical properties of rubber compound materials. An experimental sets of trials was carried out with a linear friction tester evaluating the friction coefficient for CB filled SBR on an ideal sinusoidal substrate under lubricated conditions. Lubricated conditions were chosen to obtain the pure hysteresis contribution of the friction coefficient, eliminating the effect of adhesion. For finite element analysis (FEA) simulations a visco-hyperelastic material model is considered to estimate the actual strain level close to the contact area. Based on the proper analysis of the temperature and frequency dependence behavior of experimental model rubber compounds, master curves for the viscoelastic moduli are constructed. Dynamic data were selected based on the strain level evaluated by first FEA simulations, actual temperature, and excitation frequency of each experiment. The proposed refined friction model and the simulated friction coefficient from FEA based on the precise evaluation of the material property show good prediction within the ideal experimental conditions.
Effects of German Romanticism on National Socialist Education Policies: “Steely Romanticism”
Authors: Karasoy Murad
Published: January 2020

National socialist education policies put into practice between 1933–1945 in Germany, has been under the influence of romanticism, which is one of the important currents in the history of German thought that began in the middle of the 19th century. Such “being under the influence” does not refer to a passive situation, but it rather means intentional “exposure” by Nazi ideologues. The meeting of Romanticism with National Socialism led to the most dramatic scenes of the history. Educational institutions, where the victims of war were trained, bipartitely fulfilled the task assigned to them regarding to ideological instrumentalism: to destroy and to be destroyed. Putting an end to both their lives own and the lives of others due to this romantic exposure, primary, secondary and higher education students have been the objects of the great catastrophe in the first half of the twentieth century. It will be possible to see the effects of German romanticism, through getting to the bottom of the intellectual foundations of the period’s tragic actions, such as burning books, redesigning the curriculum on the line of National Socialism, and preventing the dissemination of dissenting opinions by monopolizing the press.

This historical research, which is conducted by examining sources like Arendt (1973), Fest (1973), Giles (1985), Bartoletti (2005), Herf (1998), Heidegger (2002), Hitler (1938), Huch (2005), Hühnerfeld (1961), Schirach (1967), Pöggeler (2002), Thomese (1923), Zimmerman (1990) aims to reveal in a scientific way that it is necessary to be careful against the extreme romantic elements in the practices of education.
The Effects of 6-Week Core Training on Selected Biomotor Abilities in Soccer Players
Authors: Turna Bulent
Published: January 2020

This study aims to analyze the effects of 6-week core training on certain biomotor abilities for footballers in the pubertal period. Accordingly, 30 male footballers who attend football courses regularly participated in the study. Footballers were divided into two groups; 15 of them were assigned to the Core Training Group (CTG) (age: 9.73 years; height: 139 cm; and body weight: 33.66 kg.) while 15 of them were assigned to the Conventional Training Group (CONTG) (age: 10.06 years; height: 139 cm; and body weight: 35.32 kg). While CONTG was applying the traditional training protocol, CTG additionally applied core strength exercises (two days a week for 10-15 min.). The selected biomotor tests were applied to both groups before and after the 6-week application. Between pre- and post-test values in the CTG, a statistically significant difference was found in flamingo balance, core stabilization balance, hand grip strength, 30 sec. abdominal crunch and 30 m sprint tests (p<0.05). In the CONTG, a statistically significant difference was found in 30-second push-up test values between pre- and post-tests (p<0.05). Comparing the pre-tests between groups, a statistically significant difference was found in flamingo balance and vertical jump tests (p<0.05). Also, comparing the post-tests, a statistically significant difference was found in core stabilization balance and vertical jump tests (p<0.05).

As a result of this study, it was found that core training to be performed in addition to the traditional football training positively contributed to basic motor development.
Bernardo Autonomous Emotional Agents Increase Perception of VR Stimuli
Authors: Geslin Erik , Bartheye Olivier Olivier , Schmidt Colin , Tokey Katy Tcha , Kulsuwan Teerawat , Keziz Salah , Belouin Tanguy
Published: January 2020

Video games are high emotional vectors. They play with the emotions of players by eliciting and increasing them. The importance of the induction of basic emotions has been a long forestay and is favoured by video game publishers, as they are quite easily mobilized. Video game publishers look to produce more complex social emotions like empathy, and compassion. In games framework with narrative context, designers frequently use cinema movies methods, like cinematic non-interactive Cutscenes. These methods temporarily exclude the player from interactivity to leave his first viewpoint view and move the camera focusing on the narrative stimuli. Cutscenes were used abundantly and are now rejected, the new development wave is often trying to develop in a “zero cinematic” way. For the same reason, cinematics are also not usable in new Virtual Reality. If VR games and simulations provides a high level of presence, VR environments needs certain rules related in particular to the continuation of free will and the avoidance of possible Break in Presence. We propose in this paper a concept of Emotionally Intelligent Virtual Avatars, which when they perceive an important narrative stimulus, share their emotions through, gestures, facial nonverbal expressions, and declarative sentences to stimulate the player's attention. This will lead players to focus on the narrative stimuli. Our research studies the impact of the use of Bernardo Agents Emotional Avatars involving n = 51 users. The statistical analysis of the results shows a significant difference in the narrative perception of the stimuli and in Presence, correlated to the use of Agents Bernardo. Overall, our emotional Agent Bernardo is a unique concept for increasing the perception of narrative stimuli in virtual environments using HMD, and may be useful in all virtual environments using an emotional narrative process.
Norske myntfunn 1050-1319. Penger, kommunikasjon og fromhetskultur.
Authors: Risvaag Jon Anders
Published: January 2020

Svein H. Gullbekk & Anette Sættem: Norske myntfunn 1050-1319. Penger, kommunikasjon og fromhetskultur. Dreyer Forlag, Oslo 2019. 566 s.
Detecção de Categorias de Aspectos Utilizando Redes Neurais Profundas em Avaliações Online
Authors: Souza Bruno Á. , Menezes Alice A. F. , Figueiredo Carlos M. S. , Nakamura Fabíola G. , Nakamura Eduardo F.
Published: January 2020

Virtual environments such as online stores (e.g. Amazon, Google Play and Booking) adopt a collaborative strategy of evaluation and reputation, where users classify products and services. User's opinion represents the satisfaction level of a rated item. The set of ratings of an item is a reference to its reputation/quality. Therefore, the automatic identification of a usersatisfaction related to an item, considering its textual evaluation, is a tool with singular economic potential. With deep learning researches evolution in sentiment analysis based in aspects, opportunities to apply several neural networks in this context arisen. However, the data representation models applied in these works focus only on Embeddings pre-trained networks as a way to perform feature extraction. In this way, this work aims to present a comparison between data representation techniques and deep networks approaches, to analyze which of them have better results in classifying categories of aspects. Thus, we can seethat TF-IDF with a Convolution Neural Network (CNN) had an F1 measure of 0.93%, being at least 0.02% higher than the others approaches applied in this work.
Estudo sobre Métricas para Definir Reputação do Autor de Comentários em Sites de Vendas de Produtos
Authors: De Sá Carlos Augusto , Moura Raimundo Santos
Published: January 2020

Conhecer a reputação do autor de textos opinativos é de suma importância para avaliação de comentários na Web. Este artigo apresenta um estudo sobre medidas usadas no processo de avaliação da reputação do autor em sites de vendas de produtos. Realizou-se dois experimentos com as redes neurais Multilayer Perceptron (MLP) e Radial Basis Function (RBF), sendo que a rede MLP obteve melhor desempenho. Comparou-se também a abordagem TOP(X) original, usada para inferir os melhores comentários, com um novo modelo que utiliza rede MLP na dimensão da reputação do autor. Considerando os comentários excelentes e bons, a nova abordagem apresentou resultados significativamente superiores.
O Que os Países Escutam: Analisando a Rede de Gêneros Musicais ao Redor do Mundo
Authors: Mondelli Maria Luiza Botelho , Gadelha Jr. Luiz M. R. , Ziviani Artur
Published: January 2020

Plataformas de streaming de música são cada vez mais populares, democratizando e facilitando o acesso ao conteúdo musical. Esse efeito amplia o alcance e a penetração de diferentes estilos musicais, incrementando a diversidade de gêneros escutados nos diferentes páıses do mundo. A fim de melhor entender essa diversidade e identificar páıses com interesses em comum, neste artigo foi construída e analisada uma rede complex de artistas, gêneros musicais e páıses utilizando dados do Spotify, uma das plataformas de streaming de música mais utilizadas atualmente. Como resultados, além de identificar comunidades de páıses com estilos musicais semelhantes, nós mostramos como a grande quantidade e diversidade de gêneros musicais pode influenciar a modelagem e análise da rede considerada. Nós também classificamos os gêneros mais comumente escutados utilizando diferentes métricas de centralidade.
Uma análise das seleções da copa utilizando uma rede de transferências de jogadores entre países
Authors: Félix Lucas G. S. , Barbosa Carlos M. , Carvalho Iago A. , Vieira Vinícius da F. , Xavier Carolina Ribeiro
Published: January 2020

O futebol é hoje o esporte mais popular do mundo. O crescimento no número de transações de compra e venda, marketing, patrocínios, venda de ingressos, contratos de TV, entre outras formas de monetização do futebol faz com que o fluxo de valores seja cada vez maior. Grande parte dos trabalhos relacionados a esse esporte são associados a análises sociológicas. Neste trabalho, é proposto um estudo focado nas transações feitas entre as seleções classificadas para a Copa do Mundo 2018 utilizando técnicas de redes complexas para uma análise da transferência de jogadores entre esses páıses.
Analysis of electricity theft influence propagation using multiplex and heterogeneous networks
Authors: Borro Luiz C. , Maioli Mayara  C. , Souza Tales  F. B. , Pinto Daniel  C.
Published: January 2020

Nos países em desenvolvimento, o roubo de eletricidade é um tipo comum de perdas não técnicas (NTL, isto é, perdas associadas à eletricidade consumida mas não faturada por algum tipo de anomalia), afetando financeiramente não apenas os operadores do sistema de distribuição (DSO), mas também clientes. Da mesma forma que as fraudes em outros contextos, há evidências de que o roubo de eletricidade é altamente influenciado por interações sociais. Aqui nós propomos um modelo de rede multiplexado e heterogêneo para avaliar como as interações sociais e profissionais influenciam no roubo de eletricidade. Particularmente, empregando uma variação do algoritmo de caminhada aleatória com reinicialização, conseguimos obter uma nova pontuação de exposição para discriminar entre fraudadores e clientes regulares.
Homofilia e Assimetria na Rede de Coautoria de Proposições de Lei do Congresso Brasileiro
Authors: Rolim Lucas , Figueiredo Daniel  R.
Published: January 2020

A Câmara dos Deputados é a instância máxima de representatividade do povo e uma de suas principais atividades é a proposição e aprovação das leis que regem o paı́s. Entretanto, as 513 cadeiras da Câmara são ocupadas por deputados de diferentes estados, partidos, etnias e graus de escolaridade, sendo necessário articulações e alianças polı́ticas na proposição e aprovação de leis. O objetivo deste trabalho é caracterizar a rede de coautoria visando identificar homofilia e assimetria de diferentes atributos no processo de proposições de leis. Uma metodologia para aferir homofilia da rede e de indivı́duos é proposta e avaliada, identificando diferentes aspectos relevantes, como a alta assimetria de diferentes categorias e a falta de homofilia expressiva entre as minorias.
Análise Exploratória da Malária na Amazônia Brasileira por Meio da Plataforma de Ciência de Dados aplicada à Saúde ∗
Authors: Baroni Lais Ribeiro , Paixão Balthazar , Chrispino Alvaro , Guedes Gustavo , Barcellos Christovam , Pedroso Marcel , Ogasawara Eduardo
Published: January 2020

A malária é uma doença infecciosa que atinge principalmente a Amazônia Legal. O Departamento de Informática do Sistema Único de Saúde (DATASUS) hospeda e disponibiliza o Sistema de Informações de Vigilância Epidemiológica da Malária. Acompanhá-lo e integrar seus dados com fontes adicionais, bem como realizar a preparação dos dados é de vital importância para se compreender os fenômenos por trás das ocorrências e dos atendimen- tos médicos por meio das notificações realizadas no sistema. Para tanto, neste trabalho fazemos uso da Plataforma de Ciência de Dados aplicada à Saúde (PCDaS) como ferramenta para viabilizar a análise da evolução da malária na Amazônia Legal. A partir do seu uso, levantamos perguntas de pes
Modelagem de Redes Regulatórias para a Descoberta de Novos Biomarcadores de Doenças Complexas
Authors: Pompeu Rafael , Magalhães Leandro , Ribeiro-dos-Santos Ândrea , Vidal Amanda , Araújo Gilderlanio  S.
Published: January 2020

Este estudo apresenta uma proposta de modelagem de redes regulatórias extraindo dados biológicos públicos de três classes de elementos regulatórios (ncRNAs), tais como os miRNAs, circRNAs e piRNAs e suas relações (regulação e origem) com genes. A integração das redes de ncRNAs e sua associação com dados biológicos de importância clı́nica permitiu a identificação de genes candidatos que potencialmente atuam no desenvolvimento de doenças complexas. A partir das caracterı́sticas de centralidade e sobreposição de ligações desta rede, identificamos novos genes e ncRNAs po- tenciais biomarcadores de doenças complexas consideradas graves problemas de saúde pública.
Paralelização do Framework Model-R de Modelagem de Nichos Ecológicos com a Plataforma Apache Spark
Authors: Albuquerque Matheus Machado da Rosa , Gadelha Jr Luiz
Published: January 2020

Este trabalho tem como objetivo avaliar o desempenho computacional do framework Model-R de modelagem de nichos ecológiocs no modelo de programação Spark para processamento de dados massivos (Big Data) em uma plataforma de supercomputação. Com o crescimento exponencial dos dados ecológicos e ambientais, torna-se necessário que ferramentas de modelagem de nichos ecológicos, como o Model-R, estejam preparadas para processar tais dados de forma escalável, sendo capazes de analisá-los em um tempo hábil. Nesta pesquisa, o Model-R, originalmente implementado em R com a biblioteca Snowfall, foi parcialmente portado para a plataforma Spark e sua avaliação no supercomputador Santos Dumont está em andamento.
Biometrics in a data stream context
Authors: Pisani Paulo Henrique , De Carvalho André C. P. L. F.
Published: January 2020

Biometric systems can provide safer authentication. However, biometric features may change over time, impacting the recognition performance due to outdated biometric references. It raises the need to automatically adapt the references over time, by using adaptive biometric systems. This thesis studied several aspects of adaptive biometric systems in a data stream context. Based on this investigation, it was observed that the best choice for each aspect can be user dependent. This motivated the proposal of a modular adaptive biometric system, which can select a different configuration for each user. It also generalizes several baselines and proposals into a single modular framework, while opening numerous opportunities for future work.
Understanding and Automating Application-level Caching
Authors: Mertz Jhonny , Nunes Ingrid
Published: January 2020

Application-level caching has increasingly been adopted to improve the performance and scalability of web applications. It consists of an additional caching layer that is manually added to the application code in selected locations. Because it requires a manual application analysis and selection of cacheable points as well as implementation, it is a time-consuming and error prone activity. In this paper, we introduce our key contributions in the context of application-level caching: (i) a comprehensive survey and taxonomy of work on this topic; (ii) a qualitative study that captures the state-of-practice of application-level caching, complemented by proposed guidelines and patterns; (iii) an adaptive component that autonomously manages admission of cache content; (iv) a framework that implements our proposal; and finally (v) an evaluation that provides evidence of the effectiveness of our proposal.
Evolutionary Risk-Sensitive Feature Selection for Learning to Rank
Authors: De Sousa Daniel Xavier , Rosa Thierson Couto , Gonçalves Marcos André
Published: January 2020

Learning to Rank (L2R) is one of the main research lines in Information Retrieval. Risk-sensitive L2R is a sub-area of L2R that tries to learn models that are good on average while at the same time reduce the risk of performing poorly in a few but important queries (e.g., medical or legal queries). One way of reducing risk in learned models is by selecting and removing noisy, redundant or features that promote some queries in detriment of others. This is exacerbated by learning methods that usually maximize an average metric (e.g., mean average precision (MAP) or Normalized Discounted Cumulative Gain (NDCG)). However, historically feature selection (FS) methods have focused only on effectiveness and feature reduction as the main objectives. Accordingly, in this work we propose to evaluate FS for L2R with an additional objective in mind, namely risk-sensitiveness. We present novel single and multi-objective criteria to optimize feature reduction, effectiveness and risk-sensitiveness, all at the same time. We also introduce a new methodology to explore the search space, suggesting effective and efficient extensions of a well-known Evolutionary Algorithm (SPEA2) for FS applied to L2R. Our experiments show that explicitly including risk as an objective criterion is crucial to achieve more effective and risk-sensitive performance. We also provide a thorough analysis of our methodology and experimental results.
Towards Reliable Intrusion Detection in High Speed Networks
Authors: Viegas Eduardo K. , Santin Altair O.
Published: January 2020

Existing machine learning solutions for network-based intrusion detection cannot maintain their reliability over time in production environments. In such context, detection schemes must be able to detect intrusion attempts at a high network bandwidth, besides having to deal with the lack of realistic training/testing data, changes in network traffic behavior, unreliable classifications over time and adversarial settings. In this work a new intrusion detection model, namely reliable intrusion detection, is introduced, whose main characteristic is the usage of both batch and stream learning algorithms coupled together. The proposed model advances the state- of-the-art in intrusion detection, providing reliable detection even in the presence of network traffic behavior changes and lack of model updates. The work relevance was recognized in the publication of 5 international top-tier journals, 6 international and national conference papers, and 1 registered patent.
Seleção de Representantes para Cobertura de Componentes Conexas em Grafos
Authors: Lemos Anderson , Dos Santos Vinicius F. , Goussevskaia Olga
Published: January 2020

Introduzimos um novo problema de cobertura chamado Cobertura de Componentes por Vértices (CCV). Neste problema são dados um grafo G e uma partição A e B de V(G), e nosso objetivo ´e encontrar o menor subconjunto B de B tal que, para cada componente conexa C de G[A], há um vértice v ∈ C com algum vizinho em B?. Estudamos a complexidade deste problema e damos resultados positivos e negativos. Mostramos que o problema CCV e NP- Completo para várias classes de grafos. Mostramos tamb´em que o problema é difícil de aproximar e de parametrizar. Por outro lado, apresentamos algoritmos polinomiais para outras classes de grafos. Por fim, mostramos parametrizações FPT e algoritmos aproximativos para determinadas classes de grafos.
A Genetic Algorithm For Fair Land Allocation
Authors: Gliesch Alex , Ritt Marcus
Published: January 2020

The goal ofagrarian reform projects is the redistribution offarmland from large latifundia to smaller, often family farmers. One ofthe main problems the Brazilian National Institute ofColonization and Agrarian Reform (INCRA) has to solve is to subdivide a large parcel ofland into smaller lots that are balan- ced with respect to certain attributes. This problem is difficult since it considers several constraints originating from legislation as well as ethical considerati- ons. Current solutions are computer-assisted, but manual, time-consuming and error-prone, leading to rectangular lots ofsimilar areas which are uneven with respect to soil aptitude and access to hydric resources. In this thesis, we propose a genetic algorithm to produce fair land subdivisions automatically. We pre- sent a greedy randomized constructive heuristic based on location-allocation to generate initial solutions, as well as mutation and recombination operators that consider characteristics of the problem. Experiments on real-world and artificial instances confirm the effectiveness of the different components of our method, and show that it leads to more fair solutions than those currently ap- plied in practice.
Proper gap-labellings: on the edge and vertex variants
Authors: Weffort-Santos Celso A. , Campos Christiane N. , Schouery Rafael C. S.
Published: January 2020

Given a simple graph G, an ordered pair (π, cπ) is said to be a gap- [k]-edge-labelling (resp. gap-[k]-vertex-labelling) ofG ifπ is an edge-labelling (vertex-labelling) on the set {1, . . . , k}, and cπ is a proper vertex-colouring such that every vertex of degree at least two has its colour induced by the largest difference among the labels of its incident edges (neighbours). The decision problems associated with these labellings are NP-complete for k ≥ 3, and even when k = 2 for some classes of graphs. This thesis presents a study of the computational complexity of these problems, structural properties for certain families of graphs and several labelling algorithms and techniques. First, we present an NP-completeness result for the family of subcubic bipartite graphs. Second, we present polynomial-time algorithms for families ofgraphs. Third, we introduce a new parameter associated with gap-[k]-vertex-labellings ofgraphs.