bluuebunny/crossref_metadata_2025 huggingface dataset:
La fabrication textuelle du « français africain » : entextualisation, mises en scènes, réceptions
Authors: Van den Avenne Cécile
Published: June 2019

Cet article s’attache à décrire « l’entextualisation » du français d’Afrique dans des textes des périodes coloniales et post-coloniales, en reliant production, réception et circulation des textes qui mettent en scène des traits « encapsulés » de « français africain ». Il montre en quoi cette entextualisation est une co-construction, française et africaine, et nous amène à nous interroger sur les idéologies linguistiques qu’elle met en jeu.
Modificaciones de la microestructura y la capa pasiva de la aleación 2024-T3 Al-Cu durante una limpieza química empleada en la industria aeroespacial
Authors: Alba-Galvín Juan J. , Bethencourt Manuel , Botana Francisco J. , González-Rovira Leandro , Sánchez-Amaya José M.
Published: June 2019

Se han investigado los efectos de un pretratamiento superficial empleado en el sector aeroespacial sobre la aleación 2024-T3 Al-Cu antes de la generación de recubrimientos por conversión química. Estos pretratamientos influyen en las fases metálicas, que desempeñan un papel clave en el desarrollo de nuevos recubrimientos de conversión sin cromo y en la susceptibilidad a la corrosión localizada en medios que contienen cloruros. El pretratamiento estudiado consta de dos etapas alcalinas y una ácida. La microscopía electrónica de barrido reveló que después del proceso completo, las fases Al(Cu,Mg) se eliminaban parcial o totalmente mediante desaleación y su posterior enriquecimiento de cobre, mientras que solo se atacó la matriz de aluminio que rodeaba las fases Al(Cu,Fe,Mn,Si). El análisis electroquímico reveló el viraje a catódico de las fases Al(Cu,Mg) que aún permanecen en la superficie mientras que la fases Al(Cu,Fe,Mn,Si) presentaron un mayor potencial de corrosión que la matriz de aluminio. Por el contrario, ninguna de estas fases se vio afectada cuando se emplearon únicamente las dos etapas alcalinas. Identificados los procesos que tienen lugar cuando la aleación es sometida a un pretratamiento superficial, es posible diseñar sistemas de protección alternativos a los cromatos.
Proximate Breast Cancer Factors Using Data Mining Classification Techniques
Authors: Mensah Alice Constance , Asare Isaac Ofori
Published: June 2019

Breast cancer is the most common of all cancers and is the leading cause of cancer deaths in women worldwide. The classification of breast cancer data can be useful to predict the outcome of some diseases or discover the genetic behavior of tumors. Data mining technology helps in classifying cancer patients and this technique helps to identify potential cancer patients by simply analyzing the data. This study examines the determinant factors of breast cancer and measures the breast cancer patient data to build a useful classification model using a data mining approach. In this study of 2397 women, 1022 (42.64%) were diagnosed with breast cancer. Among the four main learning techniques such as: Random Forest, Naive Bayes, Classification and Regression Model (CART), and Boosted Tree model were used for the study. The Random Forest technique had the better accuracy value of 0.9892(95%CI,0.9832 -0.9935) and a sensitivity value of about 92%. This means that the Random Forest learning model is the best model to classify and predict breast cancer based on associated factors.
User-Independent Detection for Freezing of Gait in Parkinson's Disease Using Random Forest Classification
Authors: Meshram Amruta , Rai Bharatendra
Published: June 2019

Freezing of gait (FOG) is a gait impairment which occurs in Parkinson's disease (PD) patients. As PD progresses, the patient is unable to perform locomotion normally. This increases the risk of falls and adversely affects the patient's quality of life. In this article, a user-independent method has been proposed to detect FOG events in PD patients. The proposed method is divided into three phases. Phase-1 extracts the statistical features from a FOG dataset. Phase-2 divides the data into two clusters based on FOG events. Phase-3 selects significant factors, using a randomized block design with replication. A Random Forest model is built using a combination of significant factors obtained from the design of experiments. The proposed method classifies FOG events with an average sensitivity up to 94.33% and specificity up to 92.77%. This model can be integrated along with non-pharmaceutical treatments to generate sensory-motor feedback at the onset of a FOG event.
A New Energy-Efficient and Fault-Tolerant Evolution Model for Large-Scale Wireless Sensor Networks Based on Complex Network Theory
Authors: Tan Xiaobo , Tang Ji , Yu Liting , Wang Jialu
Published: June 2019

In this article, the authors present a new novel energy-efficient and fault-tolerant evolution model for large-scale wireless sensor networks based on complex network theory. In the evolution model, not only is the residual energy of each node considered, but also the constraint of links is introduced, which makes the energy consumption of the whole network more balanced. Furthermore, both preferential attachment and random attachment to the evolution model are introduced, which reduces the proportion of the nodes with high degree while keeping scale-free network characteristics to some extent. Theoretical analysis shows that the new model is an extension of the BA model, which is a mixed model between a BA model and a stochastic model. Simulation results show that EFEM has better stochastic network characteristics while keeping scale-free network characteristics if the value of random probability is near 0.2 and it can help to construct a high survivability network for large-scale WSNs.
A Fuzzy Markup Language-Based Approach for a Quality of Location Inference as An Environmental Health Awareness
Authors: Alowaidi Majed , Al-Ja'afreh Mohammad , Karime Ali , El Saddik Abdulmotaleb
Published: June 2019

In a recent study conducted over a two-month period, the authors have concluded that there exists a correlation between two environmental parameters, namely air quality and noise. The correlation efficiency results obtained were quantitative in nature, and thus cannot be intuitively interpreted by humans. In this article, the authors propose a Fuzzy-markup language (FML) model that aims to translate the degree of correlation that may exist among IoT environmental parameters into a linguistic set of indicators. For that purpose, the authors have developed a Fuzzy-Inference System (FIS) that infers the quality of location status according to people's surroundings and provide health-aware notifications accordingly. The initial FIS results show the significance of timeframe that should be considered according to each sensory data source. In other words, the correlation degree of the two sensory set is clearly affected by time frame variations.
Human Competency as a Catalyzer of Innovation Within Health and Nursing Care Through a Perspective of Complex Adaptive Systems
Authors: Matsushita Hironobu , Lillrank Paul , Ichikawa Kaori
Published: June 2019

The aim of this article is to analyze some features of nursing manager competencies as a potential agent of innovation through a perspective of complex adaptive systems. To achieve the objective, an empirical quantitative analysis of the data obtained through structured questionnaires was conducted to identify the key aspects of perceptions related to competencies. The results demonstrated a disparity between what nursing managers perceived as “my strength” and what they perceived as “critical in adopting innovation” with respect to competencies. This study empirically identified key competencies relevant to nursing managers in adopting innovation through a perspective of encompassing complex adaptive systems. The nursing managers surveyed tended to consider their strengths included interpersonal understanding, teamwork, self-control and concern for order. From a viewpoint of innovation adoption, there is room for improvement for nurses to develop such competencies as initiative, team leadership, conceptual thinking, analytical thinking, and organizational awareness.
A Knowledge Creation Methodology for Service Value Creation in IT Solution Service
Authors: Naruse Hiroshi , Nishioka Yukiko , Kosaka Michitaka
Published: June 2019

This article considers a knowledge management methodology in IT solution services. There are many successful case studies and research studies of IT solution services. However, these studies do not consider knowledge management for creating IT solutions. The most important issue in IT solution services is how to extract and integrate different kinds of knowledge from different people for effective IT solutions. This article analyzed three successful cases. The first case relates to the design office concept and MUSE. The other two are IT consulting cases. From analyzing these three cases, this article shows (1) the importance of what can be termed “Ba” (a knowledge space for the creation of solutions) and (2) the importance of extracting explicit knowledge from implicit field knowledge by using “meta-knowledge.” The service value creation process for IT solution services can be described clearly—and can be executed effectively—by using the results of this research. Additionally, this research will be helpful for designing business information systems using IoT, AI, and other new technologies.
A Proposition of a New Service Value Evaluation Model based on the SLA Concept for Social Infrastructure Service
Authors: Suzuki Masahiko , Kosaka Michitaka
Published: June 2019

This article proposes a new service value evaluation model for social infrastructure services. Existing service concepts or models are designed based on direct interaction between providers and customers. The service provider provides customized service to grow each customer's satisfaction. In contrast, social infrastructure service have few direct interactions between providers and customers. In addition, the provider cannot provide customized service to each customer. Because the social infrastructure service has different characteristics, this article proposes a new service concept “SISLA (Social Infrastructure Service Level Agreement)” based on the concept of SLA (Service Level Agreement). Furthermore, this article proposes a new service value evaluation model. This article shows the validity of the SISLA evaluation model by applying this model to an actual case. For social infrastructure service providers, this model may be able to make an appropriate decision to provide better service for customers while ensuring provider's profits.
Variations of indicative dates of ice regime on Lake Onego based on ground air temperature
Authors: Baklagin Vyacheslav N.
Published: June 2019

The paper shows the changes in the dates (complete freeze-up, ±5 days/°C and complete ice clearance, ±3 days/°C) of the ice regime in Lake Onego depending on changes in average air temperature within the preceding two-month periods (autumn and spring). The regression equations for their calculation based on previous three- and four-month periods according to the 2000-2018 data are also provided. Indicative dates of ice regime based on accumulated air temperatures within the ice period of Lake Onego were also established (early formation of ice phenomena, complete freeze-up phase, beginning of the break-up phase and complete ice clearance). Together with the data on expected air temperature above the lake’s surface, these dependencies enable us to predict the indicative dates of the ice regime.
Il trattamento topico con una matrice contenente mesoglicano in associazione ad acido ialuronico nella gestione delle ulcere cutanee croniche degli arti inferiori/Topical treatment with a matrix containing mesoglycan in association with hyaluronic acid in the management of chronic skin ulcers of the lower limbs
Authors: Tasinato Rolando , Zangrande Paolo
Published: June 2019

Un’ulcera cutanea cronica degli arti inferiori rappresenta l’epifenomeno di varie situazioni patologiche che possono coinvolgere, a vari livelli e con diversi gradi di interessamento, i sistemi venoso, arterioso e linfatico della gamba. Recentemente sono state pubblicate numerose evidenze secondo cui i glicosaminoglicani (GAG) svolgono un ruolo importante nella riepitelizzazione delle ulcere cutanee croniche degli arti inferiori, in particolare per quanto riguarda le ulcere ad eziopatogenesi vascolare venosa o mista. In questo articolo riportiamo la nostra esperienza nel trattamento delle ulcere cutanee croniche degli arti inferiori con una metodica che prevede il debridement secondo il protocollo TIME, antisepsi con una soluzione di iodopovidone al 10% la successiva l’applicazione di una medicazione bioattiva contenente GAG e acido ialuronico. Questa metodica è stata confrontata con un’analoga metodica che prevede sempre lo stesso tipo di debridement e di antisepsi con soluzione di iodopovidone al 10% affiancata a una medicazione non bioattiva.

A chronic skin ulcer in the lower limbs represents the epiphenomenon of pathologies that may involve, at various levels, the venous, arterial, lymphatic and nervous systems of the leg, which must be identified and adequately treated. Recently, there has been increasing evidence that glycosaminoglycans (GAGs) play a role in the re-epithelialization of chronic skin ulcerative wounds of the lower limbs, particularly as regards ulcers of venous and arterial vascular origin. In this paper we report our experience in the treatment of chronic skin ulcers with debridement according to the TIME Wound Bed Preparation protocol with application of a bioactive dressing containing GAGs and hyaluronic acid, compared to a technique using a standard dressing involving the cleansing of the wound with 10% povidone iodine solution.
Surgical Management of Lateral Ankle Instability in Athletes
Authors: Camacho Luis D. , Roward Zachary T. , Deng Yu , Latt L. Daniel
Published: June 2019

Ankle sprains are common injuries involving the lateral ankle ligaments and affect athletes of all levels. Most patients heal uneventfully, but those with symptoms persisting past 3 months should be evaluated for chronic ankle instability and its associated conditions as well as for the presence of varus malalignment. Chronic ankle instability is initially treated nonoperatively, with surgical management reserved for those who have failed to improve after 3 to 6 months of bracing and functional rehabilitation. Anatomic repair using a modification of the Broström procedure is the preferred technique for initial surgery. Anatomic reconstruction with tendon graft should be considered when repair is not possible, as it maintains physiological joint kinematics. Nonanatomic reconstructions are seldom indicated. Arthroscopic repair or reconstruction of the lateral ankle ligaments is a promising new technique with results similar to those of open surgery.
Trust and organisational performance: A grounded theory approach for a South African district municipality
Authors: Ndevu Zwelinzima J.
Published: June 2019

Orientation: A key role of local government in providing transparent, honest, accountable, efficient and effective service delivery to the communities they serve is determined by a number of plans, designs, actions and implementation. Trust among communities in the organisational set up is key in the success or failure of the efforts of the municipal entity and affects their individual and group performance.Research purpose: This study examines the relationship between trust and performance within a municipal environment and its effect on service delivery.Motivation for the study: The lack of sufficient and usable knowledge and information on the issue created the need for this research project that is an on-going effort dissecting and analysing key human resources challenges in the public sector.Research approach/design and method: Following a brief outline of the legislation, rules and regulations that determine the responsibilities of local government in South Africa and the context of the study, the qualitative method and design of focus groups as the key instrument of data collection was identified and analysed.Main findings: The results of the study pointed to the lack of trust among leadership and employees at all organisational levels.Practical/managerial implications: The existence of mistrust and problems identified in the process of performance management and evaluation has negative consequences on employee performance in the municipality.Contribution/value-add: The study findings have opened new doors to understanding key elements of organisational performance as the topic has received very scant attention in South African research literature.
Стpуктуpы квантовой системы на квантовых пространствах и отображения с разрушением сцепленности
Authors: Dosi Anar Adıgüzel oğlu
Published: June 2019

Работа посвящена классификации квантовых систем в ряду квантовых пространств. В нормированном случае получено полное решение вопроса о том, когда операторное пространство является операторной системой. Минимальное и максимальное квантования локального порядка описаны в терминах минимальной и максимальной оболочек соответствующего пространства состояний. Дана характеризация min-max-вполне положительных отображений между архимедово упорядоченными пространствами с единицей и исследованы отображения с разрушением сцепленности в общем контексте квантовых систем.
Библиография: 34 названия.
Двусторонние оценки областей однолистности классов голоморфных отображений круга в себя с двумя неподвижными точками
Authors: Kudryavtseva Olga Sergeevna , Solodov Aleksei Petrovich
Published: June 2019

Изучается класс голоморфных отображений круга в себя с внутренней и граничной неподвижными точками, а также класс голоморфных отображений полуплоскости в себя с неподвижной точкой внутри области и на бесконечности. Получены двусторонние оценки областей однолистности на классах таких функций в зависимости от значений угловой производной в граничной неподвижной точке и расположения внутренней неподвижной точки.
Библиография: 21 название.
Гладкость функций и коэффициенты Фурье
Authors: Dyachenko Mikhail Ivanovich , Mukanov Askhat Birlesovich , Tikhonov Sergei Yur'evich
Published: June 2019

Рассматриваются функции, представимые в виде тригонометрических рядов с обобщенно монотонными коэффициентами. Основной результат работы - эквивалентность модуля гладкости в $L_p$, $1<p<\infty$, этих функций и некоторых сумм их коэффициентов Фурье. В качестве приложений для таких функций дается полное описание норм в пространстве Бесова и точные прямые и обратные теоремы теории приближений.
Библиография: 34 названия.
A competência em informação nos currículos de Biblioteconomia do sul do Brasil
Authors: Miranda Ana Maria Mendes , Alcará Adriana Rosecler
Published: June 2019

Objetivo: A pesquisa investigou a inserção de disciplinas que tratam de temas relacionados à competência em informação nos currículos dos cursos de Biblioteconomia da região sul do Brasil.Metodologia: É caracterizada como uma pesquisa descritiva, com abordagem qualitativa. Quanto aos procedimentos, inicialmente foi realizado um estudo documental a partir das matrizes curriculares dos cursos de Biblioteconomia do Sul do país para identificar as disciplinas voltadas para a formação da competência em informação e em seguida foi enviado um questionário para os professores que ministravam as disciplinas identificadas na etapa documental, cujos dados foram analisados com base na técnica de análise de conteúdo. Resultados: Entre os resultados pode-se salientar que além das disciplinas específicas de competência em informação algumas outras, como por exemplo, as de fontes de informação podem contribuir para a formação das habilidades dos estudantes no que diz respeito à busca, seleção e uso da informação. Conclusão: Embora alguns cursos ofertam disciplinas que contribuem para a formação da competência em informação, ainda se evidencia a necessidade de aprimoramento por parte das instituições de ensino superior visando a implementação mais efetiva desse conteúdo nos currículos dos cursos de Biblioteconomia.
Smart Cities e o desenvolvimento sustetável: revisão e perspectivas de pesquisas futuras
Authors: Genari Denise , Da Costa Luana Folchini , Savaris Thiago Paese , Macke Janaina
Published: June 2019

O processo acelerado de urbanização da sociedade é acompanhado de desafios vinculados às esferas sociais, ambientais e econômicas. Diante deste contexto, destaca-se a emergência do tema smart cities, sendo estas consideradas espaços nos quais ocorre a utilização adequada da infraestrutura disponível, visando melhorar a eficiência econômica e política, permitindo o desenvolvimento social, cultural e urbano. Com base nesta perspectiva, o presente artigo tem como principal objetivo caracterizar os estudos que vinculam os temas smart cities e desenvolvimento sustentável, além de identificar oportunidades de pesquisas futuras. Para tanto, realizou-se uma revisão sistemática de literatura, utilizando-se o suporte do software Alceste. Os principais resultados apontam a predominância de estudos qualitativos, abordando, principalmente, a dimensão ambiental da sustentabilidade e a dimensão sistêmica vinculada às smart cities, contemplando as tecnologias da informação e da comunicação. A partir destes achados, segure-se a realização de pesquisas futuras que considerem a dimensão social e econômica da sustentabilidade.
Decoding long-term trends in the wet deposition of sulfate, nitrate and ammonium after reducing the perturbation from climate anomalies
Authors: Yao Xiaohong , Zhang Leiming
Published: June 2019

Abstract. Long-term trends of wet deposition of inorganic ions are affected by multiple factors, among which emission changes and climate conditions are dominant ones. To assess the effectiveness of emission reductions on the wet deposition of pollutants of interest, contributions from these factors to the long-term trends of wet deposition must be isolated. For this purpose, a two-step approach for preprocessing wet deposition data is presented herein. This new approach aims to reduce the impact of climate anomalies on the trend analysis so that the impact of emission reductions on wet deposition can be revealed. This approach is applied to a two-decade wet deposition dataset of sulfate (SO42−), nitrate (NO3−) and ammonium (NH4+) at rural Canadian sites. Analysis results show that the approach allows for robustly identifying inflection points on decreasing trends in the wet deposition fluxes of SO42− and NO3− in northern Ontario and Québec. The inflection points match well with the three-phase mitigation of SO2 emissions and two-phase mitigation of NOx emissions in Ontario. Improved correlations between the wet deposition of ions and their precursors' emissions were obtained after reducing the impact from climate anomalies. Furthermore, decadal climate anomalies were identified as dominating the decreasing trends in the wet deposition fluxes of SO42− and NO3− at a western coastal site. Long-term variations in NH4+ wet deposition showed no clear trends due to the compensating effects between NH3 emissions, climate anomalies, and chemistry associated with the emission changes of sulfur and nitrogen.
Contrasting ambient fine particles hygroscopicity derived by HTDMA and HR-AMS measurements between summer and winter in urban Beijing
Authors: Fan Xinxin , Zhang Fang , Chen Lu , Collins Don , Xu Weiqi , Jin Xiaoai , Ren Jingye , Wang Yuying , Wu Hao , Li Shangze , Sun Yele , Li Zhanqing
Published: June 2019

Abstract. The effects of aerosols on visibility through scattering and absorption of light and on climate through altering cloud droplet concentration are closely associated with their hygroscopic properties. Here, based on field campaigns in winter and summer in Beijing, we compare the size-resolved hygroscopic parameter (κgf) of ambient fine particles derived by an HTDMA (Hygroscopic Tandem Differential Mobility Analyzer) to that (denoted as κchem) of calculated by an HR-ToF-AMS (High-resolution Time-of-Flight Aerosol Mass Spectrometer) measurements using a simple rule with a uniform internal mixing hypothesis. We mainly focus on contrasting the disparity of κgf and κchem between summer and winter to reveal the impact of atmospheric processes/sources on aerosols hygroscopicity and to evaluate the uncertainty in estimating particles hygroscopicity with the hypothesis. We show that, in summer, the κchem for 110, 150 and 200 nm particles was averagely ~ 10 %–12 % lower than κgf, with the greatest difference between the values observed around noontime when aerosols experience rapid photochemical aging. In winter, no apparent disparity between κchem and κgf is observed for those > 100 nm particles around noontime, but the κchem is much higher than κgf in the late afternoon when ambient aerosols are greatly influenced by local traffic and cooking sources. By comparing with the observation from other two sites (Xingtai, Hebei and Xinzhou, Shanxi) of north China, we verify that atmospheric photochemical aging of aerosols enhances their hygroscopicity and may induce a coating effect which thereby leads to 10 %–20 % underestimation of the hygroscopic parameter if using the uniform internal mixing assumption. The coating effect is found more significant for these >100 nm particles observed in remote or clean regions. However, local primary sources, which result in an externally mixture of the fine particles with a large number of POA (Primary Organic Aerosol) in urban Beijing, makes the particle much less hygroscopic and cause 20–40 % overestimation of the hygroscopic parameter by the mixing rule assumption. In addition, we also note lower κchem than κgf for 80, 110 and 150 nm particles during the nighttime of winter, particularly in polluted days, probably due to a nighttime coating effect driven by condensation of secondary hygroscopic species on pre-existing aerosols in cold season. Our results suggest that it is critical to parameterize the impacts in model simulations to improve the evaluation of the aerosols indirect effect.
DINCAE 1.0: a convolutional neural network with error estimates to reconstruct sea surface temperature satellite observations
Authors: Barth Alexander , Alvera-Azcárate Aida , Licer Matjaz , Beckers Jean-Marie
Published: June 2019

Abstract. A method to reconstruct missing data in satellite data using a neural network is presented. Satellite observations working in the optical and infrared bands are affected by clouds, which obscure part of the ocean underneath. In this paper, a neural network with the structure of a convolutional auto-encoder is developed to reconstruct the missing data based on the available cloud-free pixels in satellite images. However, it is unclear how to handle missing data (or data with variable accuracy) in a neural network when using incomplete satellite data in the training phase. The present work shows a consistent approach which uses essentially the satellite data and its expected error variance as input and provides the reconstructed field along with its expected error variance as output. The neural network is trained by maximizing likelihood of the observed value. The approach, called DINCAE (Data-Interpolating Convolutional Auto-Encoder) is applied to a relatively long time-series of Advanced Very High Resolution Radiometer (AVHRR) sea surface temperature data and compared to DINEOF (Data Interpolating Empirical Orthogonal Functions), a method to reconstruct missing data based on an EOF decomposition. The reconstruction error of both approaches is computed using cross-validation and in situ observations from the World Ocean Database. DINCAE results have lower error, while showing higher variability than the DINEOF reconstruction.
Displacement amplification ratio modeling of bridge-type nano-positioners with input displacement loss
Authors: Li Jinyin , Yan Peng , Li Jianming
Published: June 2019

Abstract. This paper presents an improved modeling method for bridge-type mechanism by taking the input displacement loss into consideration, and establishes an amplification ratio model of bridge-type mechanism according to compliance matrix method and elastic beam theory. Moreover, the amplification ratio of the designed bridge-type nano-positioner is obtained by taking the guiding mechanism as the external load of bridge-type mechanism. Comparing with existing methods, the proposed model is more accurate, which is further verified by finite element analysis(FEA) and experimental test. The consistency of the results obtained from theoretical model, FEA and experimental testing indicates that the proposed model can accurately predict the amplification characteristics of nano-positioners, which helps the analysis and design of bridge-type nano-positioners in practical applications.
Repositórios institucionais de acesso aberto na América Latina
Authors: Costa Michelli Pereira da , Leite Fernando César Lima
Published: June 2019

Objetivo. Este trabalho identifica e analisa os repositórios institucionais (RI) na América Latina. O desenvolvimento de sistemas por parte de universidades e institutos de pesquisa na América Latina destaca-se na literatura como uma forma de atingir os objectivos de acesso aberto considerando os fundos públicos e também as características dos RI.Método. Neste trabalho utilizaram-se cinco métodos de selecção e cinco dimensões de análises de RI.Resultados. Os elementos relacionados permitiram a selecção, mapeo e caracterização de 84 RI listados num conjunto de 289 repositórios digitais.Conclusões. Os dados da pesquisa mostraram que América Latina obteve avanços relevantes em termos de RI também se é comparada com Estados Unidos e alguns países europeus. Esta pesquisa mostra que os RI são ferramentas eficazes para promover o acesso aberto.
PHASE-CHANGE MATERIAL: NATURAL RUBBER COMPOSITES FOR HEAT STORAGE APPLICATIONS
Authors: Poikelispää Minna , Ruokangas Sasu , Honkanen Mari , Vippola Minnamari , Sarlin Essi
Published: June 2019

Global warming and environmental awareness in general have increased the research into thermal energy storage fields. Phase-change materials (PCMs) are efficient in storing thermal energy because of their high latent heat during the phase change. As the phase change is often based on the melting of the PCM, they need to be encapsulated, for example, by dispersing the PCM to a polymer matrix. In this study, the feasibility of the use of paraffin–natural rubber composites in applications requiring both the good ability to store heat energy and good vibration-damping properties is studied. This includes studies on PCM concentration and the microencapsulation of the PCM. It was found that the heat storage capacity increases with increasing PCM content, although the theoretical maximum capacity is not achieved because the PCM is released during vulcanization and the paraffin blooms. In addition, the loss factor was found to be increased at elevated temperatures, indicating improved damping properties. The encapsulation of PCM is found to have a positive influence on the heat storage capacity and the mechanical and damping properties of the rubber compound.
Figural Exegesis and the Retrospective Re-cognition of Israel’s Story
Authors: Hays Richard B.
Published: June 2019

This article first demonstrates that the writers of the canonical Gospels employed figural reading in their interpretations of Israel’s Scripture and then addresses the concern that figural exegesis might undercut confidence in the inspiration of Scripture. Several examples of figural reading are offered, drawn from Luke 7, John 2, Matt 2, and Luke 13; these texts illustrate retrospective reading and do not presuppose a model of predictive prophecy. Next, the essay identifies three NT texts (from Acts 2, 1 Peter 1, and John 12) that do assert intentionally predictive prophecy in the OT. A final section of the essay discusses what is at stake theologically in this examination of intertextual hermeneutics, particularly with regard to the work of the Holy Spirit in inspiring fresh imaginative Christological interpretation of Scripture.
Public College Students’ Perception of Underage Drinking In Nigeria: Analysis of Current Issues
Authors: Adekeye Olujide A. , Omumu Florence , Chenube Olufunke O. , Amoo Emmanuel O. , Adeusi Sussan O. , Solarin Muyiwa A.
Published: June 2019

BACKGROUND: Alcohol is the most widely used substance of abuse among youths in Nigerian. Currently, underage drinking has become a serious public health problem in most colleges and despite the health and safety risk, consumption of alcohol is rising. Having recourse to the public health objective on alcohol by the World Health organization, which is to reduce the health burden caused by the harmful use of alcohol, thereby saving lives and reducing injuries, this study explored the nature of alcohol use among college students, binge drinking and the consequences of alcohol consumption. Secondary school students are in a transition developmentally and this comes with its debilitating effects such as risky alcohol use which affects their health and educational attainment (Loukas, Cance, & Batanova, 2016; Adekeye, 2012).

METHODS: This is a cross-sectional study of 809 college students (ages 14–20 years) using the research survey method. For data collection, an adapted and validated version of the youth questionnaire on underage drinking was employed. 

RESULTS: Bivariate analysis found that more male students consume beer and spirits while wine was the reported preference of female students. Heavy episodic drinking (HED) was discovered among few male students while 50.2% of the sample had their first drink between ages 14 and 17. 81% of the sample had ever drank alcohol while more than half (65%) of the sample consume alcohol once in a month. Further analyses show prevalence of alcohol consumption, strategies to reducing alcohol use, reasons for underage drinking and effects of alcohol consumption.

CONCLUSIONS: A majority of underage students supported increasing efforts to control underage drinking. The students reported that an effective approach to decreasing alcohol use could be public presentations by people who have been seriously hurt or impaired by alcohol use. This will be a veritable public health intervention.
Factors Contributing to Poor Environmental Hygiene in Kehemu location, Rundu, Namibia
Authors: Nakakuwa Justina , Ashipala Daniel Opotamutale , Kamenye Esther , Lifalaza Alice , Sankombo Marian , Uusiku Laura
Published: June 2019

Solid waste management in Rundu, Namibia, is a major challenge, resulting in significant environmental health hazards. The purpose of this study was therefore to identify and describe the factors contributing to poor environmental hygiene specifically in Kehemu location in Rundu, while the objectives were to explore the factors contributing to poor environmental hygiene in the area. A qualitative approach was employed comprising an explorative and descriptive design. The research population for this particular study consisted of residents of Kehemu location and a sample was drawn from this population using purposive sampling. Data were collected from focus group discussions conducted with 15 (fifteen) residents. The transcribed interviews and narratives from the research notes were organised into codes, main themes and sub-themes. The results from this study revealed, among other things, that the methods used by most households for disposing of waste included digging holes, burning the waste and dumping it in open areas. In addition, factors contributing to poor environmental hygiene in Kehemu location include a lack of dumping sites, dustbins and refuse removal services. The findings of this study call for well-articulated actions to address the factors identified as being associated with poor environmental hygiene in Kehemu. The study recommends that the town council should empower the community by providing dustbins, initiating clean-up campaigns and providing education and awareness-raising as some measures for curbing problems related to environmental health.
Anti-hemolytic, Anti-lipid Peroxidation and Antioxidant Properties of Three Plants Locally Used to Treat Metabolic Disorders: Allium sativum, Persea americana and Citrus sinensis
Authors: Azantsa Boris G. K. , Mbong Mary-Ann A. , Takuissu Guy RN , Matsinkou Rosane S. , Djuikoo Imelda L. N. , Youovop Janvier F. , Ngondi Judith L. , Oben Julius E.
Published: June 2019

Citrus sinensis, Persea americana and Allium sativum are good sources of large number of various bioactive substances including antioxidants. Antioxidants play an essential role in the prevention and treatment of type 2 diabetes and other metabolic diseases. This study was conducted to evaluate and compare the anti- lipid peroxidation, anti-hemolytic and antioxidant capacity of aqueous extracts of the three plants in vitro. Polyphenolic and flavonoids content of aqueous extracts (EA) of plants were determined. The anti-lipid peroxidation was evaluated on homogenates of rat liver. Anti-haemolytic effects were assessed using erythrocyte system model induced free radicals from human red blood cells. Total antioxidant capacity and antiradical or scavenging capacity were evaluated on biological free radical systems (OH, NO.) and synthetic radicals (DPPH and ABTS+). Results showed that, different extracts possess variable amounts of polyphenolic compounds. They exhibited significant anti-hemolytic and anti-lipid peroxidation activities. Aqueous extracts of Citrus sinensis are powerful scavenger of OH. (IC50=1.05x10-3mg/ml) and NO. (IC50= 1.29x10-3 mg/ml) free radicals while Persea americana seed extract possesses the highest anti-lipid peroxidation capacity (59.72%) and the best scavenging capacity against DPPH and ABTS. Red blood cells were highly protected (at 97.87%, p<0.05) by Allium sativum extract at 1mg/mL and Citrus sinensis (87.7%, p<0.05). Therefore, anti-hemolytic, anti-lipid peroxidation effects of the aqueous extracts of the three plants can justify their use and efficacy in alternative treatment of metabolic diseases.
Influence of Window Details on the Energy Performance of an nZEB
Authors: Kalbe Kristo , Kalamees Targo
Published: June 2019

One of the largest sources of heat loss in buildings are the windows. However, windows are alsoimportant to increase solar heat gain and provide daylight. It is necessary to understand how windowdetails influence the energy performance of very energy efficient houses. This is valuable informationfor the design decision making process and may lead to further research or product development. Thispaper examines the influence of window frame thermal transmittance, window frame width and windowinstallation depth on the energy demand of the building. A single-family prefabricated timber nZEBlocated in Estonia was used as a reference building for this study. The results show that decreasing thethermal transmittance and width of the window frame have a remarkable effect on the energy demandof the nZEB (a variation of 42% and 25% respectively). The effect of optimising window installation depthis insignificant (ca 3% variation of heat demand on most of the window placement range and up to 10%of increase in heat demand when comparing the optimal placement to the least effective one). However,it can further improve the energy performance.
THE ROLE OF MAGMATIC HEAT SOURCES IN THE FORMATION OF REGIONAL AND CONTACT METAMORPHIC AREAS IN WEST SANGILEN (TUVA, RUSSIA)
Authors: Polyansky O. P. , Kargopolov S. A. , Izokh A. E. , Semenov A. N. , Babichev A. V. , Vasilevsky A. N.
Published: June 2019

The tectonomagmatic evolution of the Sangilen massif has been described in detail in numerous publications, but little attention was given to heat sources related to the HT/LP metamorphism. Modeling of the magma transport to the upper‐crust levels in West Sangilen shows that the NT/LP metamorphism is related to gabbromonodiorite intrusions. This article is focused on the thermo‐mechanical modeling of melting and lifting of melts in the crust, taking into account the density interfaces. The model of the Erzin granitoid massif shows that in case of fractional melting, the magma ascent mechanism is fundamentally different, as opposed to diapir upwelling – percolation take place along a magmatic channel or a system of channels. An estimated rate of diapiric rise in the crust amounts to 0.8 cm/yr, which is more than an order of magnitude lower than the rate of melt migration in case of fractional melting (25 cm/yr). In our models, a metamorphic thermal ‘anticline’ develops in stages that differ, probably, due to the modes of crust melting: batch melting occurs at the first stage, and fractional melting takes place at the second stage. It is probable that the change of melting modes from melting conditions in a ‘closed’ system to fractional melting conditions in ‘open’ systems is determined by tectonic factors. For the Sangilen massif, we have estimated the degrees of melting in the granulite, granite, and sedimentary‐metamorphic layers of the crust (6, 15, and 5 vol. %, respectively).
AN OVERVIEW OF CLASTIC DIKES: SIGNIFICANCE FOR EARTHQUAKE STUDY
Authors: Lunina О. V.
Published: June 2019

Clastic dikes are often the only evidence of past disasters in poorly exposed areas and therefore their findings are extremely important for earthquake study. However, the variety of their origins greatly complicates the use of clastic dikes to assess the seismic hazards within the manifold environments. This paper systematizes main triggers, formation mechanisms and some matching indicative features of tabular and cylindrical bodies with an emphasis on the importance of revealing the injection dikes formed by fluidized injection of clastic material into the host sedimentary layers (from the bottom upwards) and associated with overpressure buildup and hydraulic fracturing. Based on the revision of known seismic liquefaction features and specific descriptions of the injection dikes, this overview defines 12 general and 12 individual geological and structural criteria (for study in sectional view), which make it possible to establish confidently the earthquake origin of the dikes caused by fluidization from seismic liquefaction. In addition, ground penetrating radar data correlating with trenching suggest indicative searching criteria of the injection dikes on radargrams, namely: a pipe‐shaped anomaly or a composite anomaly combining a tubular form in the lower part with an isometric – in the upper [i]; relatively high values of unipolar positive echoes on the trace of GPR signal [ii]; an occurrence of the same anomaly on adjacent parallel profiles located the first tens of meters apart [iii]; and stratigraphic disruptions of the radar events on the background of their continuous horizontal position [iv]. Finally, the paper illustrates that the clastic dikes can be successfully applied to determine the age and the recurrence interval, the epicenter location and a lower‐bound magnitude/intensity of paleoearthquakes, thus providing geological data for seismic hazard assessments in the regions, in which unconsolidated deposits capable to liquefaction are common.
GENERAL PB‐ISOTOPE SYSTEMATICS OF SOURCES FOR VOLCANIC ROCKS OF THE LATEST GEODYNAMIC STAGE IN ASIA
Authors: Rasskazov S. V. , Chuvashova I. S. , Yasnygina Т. A. , Sun Yi‐min , Saranina Е. V.
Published: June 2019

The modern theory of the evolving Earth is based on integrated isotopic data obtained for the accessible part of the planet and cosmic bodies, in which the U–Pb isotope system plays a key role. The theory is tested by the isotope systematics of oceanic basalt sources. The origin of continental volcanic rocks is often interpreted in terms of the isotopic systematics of oceanic basalts. However, such interpretations, as a rule, reveal contradictions arising from differences in the history and current mantle dynamics of oceans and continents. Under the oceans, a mantle material has long lost connection with the accessible Earth tectonic units; under the continents such a connection is often established. The nature of the evolution of deep‐seated processes under the continents remains uncertain and, by analogy with the oceans, requires deciphering in terms of the components of the mantle sources for volcanic rocks. In modern lithospheric plates of the Earth, there are regions ranging in width from hundreds to thousands of kilometers, which are characterized by high strain rates and, consequently, at least one to two orders of magnitude lower viscosity relative to that of the internal stable parts of the plates. This gives them a special structural status of “dispersed plate boundaries”. The isotope‐geochemical studies of volcanic rocks from regions of the unstable Asia revealed the different nature of components in sources, for which particular interpretations have been proposed. In this paper, a general systematics of sources is defined for volcanic rocks of the latest geodynamic stage in Asia through estimating the incubation time on the 207Pb/204Pb versus 206Pb/204Pb diagram. Two domains are designated: (1) low 238U/204Pb (LOMU) derived from the viscous protomantle (VIPMA), and (2) elevated 238U/204Pb (ELMU). The mantle domains evolved from the Earth's primary material between 4.51 and 4.36 Gyr ago, 4.0 and 3.7 Gyr ago, 2.9 and 2.6 Gyr ago, 2.0 and 1.8 Gyr ago, about 0.66 Gyr ago and <0.09 Gyr ago. Melting anomalies of ELMU sources characterize the unstable mantle of Southern Asia, and those of LOMU sources belong to the Japan‐Baikal geodynamic corridor of the transitional region between the unstable mantle of Asia and its stable core. The Late Cenozoic evolution of the Japan‐Baikal geodynamic corridor resulted in cutting the LOMU domain by the Jeju‐Vitim ELMU source line.
O Cinema Como Criador de Tendências e Fonte de Pesquisa Histórica na Moda
Authors:   Universidade Federal de Minas Gerais, Guimarães Maria Paula , Ribeiro Rita Aparecida da Conceição
Published: June 2019

Apesar de ter surgido na Europa em fins do século XIX, foi nos Estados Unidos que o cinema teve seu maior desenvolvimento e consolidou-se como uma atividade de produção multidisciplinar e seus múltiplos estilos e gêneros tornaram-se objeto de vários estudos. Entre este podemos considerar a influência dos figurinos na constituição de identidades e de gêneros e, ainda, perceber a importância histórica dos figurinos para pesquisa e reconstituição de épocas. Assim, Este artigo propõe a interpretação dos figurinos de filmes musicais, ampliando a classificação proposta por Betton (1987) criando 03 novas categorias: reconstituição de época, figurino contemporâneo e livre interpretação de época a partir dos filmes Amor, Sublime Amor (1961), Hair (1978) e Os Embalos de Sábado à noite (1977), considerando também que o cinema pode ser fonte de pesquisa histórica dos figurinos como de outros aspectos característicos de uma época, como cenografia, hábitos e costumes de um grupo social.
Rupturas do Vestir: Uma Análise de “Vestido Nuevo” e a Formação da Identidade de Gênero na Infância
Authors:   Universidade Feevale, Pires Marianna Ribeiro , Schemes Claudia
Published: June 2019

A partir da perspectiva da moda e do cinema como manifestações culturais e suas relações possíveis com os estudos de gênero, busca-se problematizar as questões que circundam as rupturas dos modos de vestir, em relação aos gêneros, estabelecidos culturalmente na sociedade ocidental contemporânea. Nosso olhar se volta para a infância, período no qual se constitui a identidade de gênero do sujeito, sua apreensão de mundo e o seu lugar nesse espaço de socialização. Com tal enfoque, analisa-se a roupa enquanto linguagem, e como sua utilização pode estar atrelada na busca por afirmação e reconhecimento da identidade de gênero. De igual forma, o cinema representa práticas sociais que expressam, dialogam ou contestam discursos por meio das telas. Neste artigo analisaremos o curta-metragem espanhol “Vestido Nuevo” (2007), que trata as questões de gênero no contexto escolar. Com isso, objetiva-se compreender e refletir como a escolha das vestimentas provocam choques e antagonismos sociais.