bluuebunny/crossref_metadata_2025 huggingface dataset:
Morphoagronomic characterization of sweet potato accessions from the germplasm bank of Embrapa hortaliças
Authors: De Sousa Rosa maria de Deus , Peixoto José Ricardo , Amaro Geovani Bernardo , Vilela Michelle Sousa , Carmona Paula Andrea Osorio
Published: December 2019

Studies on the determination of genetic divergence among genotypes are important tools in breeding programs, contributing to the identification of parents with considerable productive potential. However, little is known about the combinatorial capacity of sweet potato (Ipomoea batatas) accessions and its adaptation to the different regions of Brazil. The objective of this study was to evaluate the morpho-agronomic traits from 102 sweet potato accessions from the Germplasm Bank of Embrapa Hortaliças. The experiment was laid out as an augmented block design comprised of 102 treatments. Nineteen above ground traits were measured using descriptors for the respective parts. Estimated values of broad sense heritability were high for the traits mean branch length (95.75%), immature leaf color (85.06%), and predominant branch  color (90.57%). Coefficients of environmental variation were below 30.00% for all variables, except for branch weight (51.62%). The 102 clones analyzed presented broad genetic variability for the different traits evaluated, especially for branch weight, and branch length, and mature leaf color.
A comunidade científica brasileira: Formação ao longo dos séculos
Authors: Tuma Ana Beatriz Camargo
Published: December 2019

Este texto é uma resenha crítica do livro “Um espaço para a ciência: Formação da comunidade científi ca no Brasil” de Simon Schwartzman (2015), publicado pela primeira vez em 1979. Nele, aborda-se a ciência brasileira desde o período colonial até os dias atuais. O mérito mais relevante desta obra, segundo o autor, foi o de ter ajudado a estabelecer o campo dos estudos sociais e históricos sobre a ciência e tecnologia no Brasil.

Palavras-chave: Brasil; ciência; cientistas; história.
A leitura pública de notícias na rede social Facebook: estudo de caso dos portais de Frutal – MG
Authors: Portari Rodrigo Daniel Leboti
Published: December 2019

A presente proposta teve como objetivo analisar como se dá o processo de interação e interpretação de notícias publicadas no meio on line por parte dos internautas de Frutal-MG. Foi realizada análise dos discursos apresentados na rede social para que se possa entender como se dá a relação entre o leitor e o conteúdo noticioso. Utilizamos a noção de “leitura pública” (Mouillaud, 2012) de notícias, As análises discursivas foram feitas à luz da linha francesa, buscando como autores de referência Charaudeau, Maingueneau, Pechêux e Bakhtin.
Alterações da personalidade na demência: Uma revisão
Authors: Henriques-Calado Joana , Duarte-Silva Maria Eugénia
Published: December 2019

Objetivou-se analisar estudos empíricos sobre as alterações da personalidade na Demência, através da avaliação dos traços baseada no Modelo dos Cinco Fatores da Personalidade. Procedeu-se a revisão da literatura indexada nas bases de dados EBSCO/Web of Knowledge/Medline/Pubmed/SciELO/Scopus. Foram incluídas 57 referências. As alterações da personalidade são evidentes nas fases iniciais da Demência e podem ser um marcador clínico precoce. Um dado parece ser transversal e geralmente unânime na literatura, evidencia-se um aumento na dimensão Neuroticismo e um decréscimo na dimensão Conscienciosidade. Sugere-se a necessidade de exploração sistemática, para que seja introduzida uma avaliação da personalidade, no diagnóstico de Demência de Alzheimer, de forma a aumentar a sensibilidade do diagnóstico precoce e com utilidade prática ao nível do diagnóstico clínico.
Uma análise exploratória das relações entre as representações de vinculação do pai e o seu envolvimento em atividades práticas e lúdicas.
Authors: Monteiro Lígia , Maia Rita , Fernandes Carla , Fernandes Marília , Antunes Marta , Veríssimo Manuela
Published: December 2019

Este estudo teve como principal objetivo explorar as relações entre as representações de vinculação (script de base segura) do pai, e o seu envolvimento em atividades práticas (relacionadas com a gestão e cuidados à criança) e em atividades com características lúdicas (brincadeira/lazer). Participaram 62 famílias nucleares, com crianças entre os 2 e os 5 anos, de estatuto socioeconómico médio e de duplo-rendimento. De modo a analisar os scripts de base segura utilizou-se as Narrativas de Representação da Vinculação em Adultos, aplicadas individualmente ao pai, tendo a mãe e o pai preenchido, de modo independente, um questionário sobre o envolvimento parental. Os resultados indicam que os pais possuem e acedem ao script de base segura em contextos onde este é elicitado; que participam mais nas atividades lúdicas, do que nas práticas; e que pais com valores mais elevados de script adulto/criança se encontram mais envolvidos nas atividades práticas, mesmo quando a idade da criança e as habilitações do pai são controladas.
Educación para la vida: elementos de diferencia cultural para propuestas pedagógicas
Authors: Jutinico Fernández María del Socorro
Published: December 2019

El presente artículo de reflexión recoge algunas narraciones[1] sobre las experiencias de la vida escolar de maestros que trabajan con la diferencia cultural, al tiempo que los entrelaza con referentes teóricos sobre el tema. Este ejercicio reflexivo no solo da cuenta, de forma sucinta, de sus expectativas, saberes, prácticas y apuestas formativas, sino que centra el interés en mostrar cuatro elementos pedagógicos (territorio; identidad-interculturalidad; comunitariedad; armonía-bien-estar y buen vivir) que emergen del tejido realizado y los presenta como posibles elementos a tener en cuenta en las discusiones para el desarrollo de propuestas pedagógicas que reconozcan la diferencia cultural desde una apuesta de educación para la vida.[1] Narraciones recogidas en el evento Diferencia Cultural y Educación organizado por el grupo de investigación Equidad y Diversidad en Educación de la Universidad Distrital Francisco José de Caldas y la Universidad Pedagógica Nacional, del cual hago parte como co-investigadora (noviembre 24 de 2014). Estas corresponden a docentes de cinco instituciones educativas del país.
Creencias sobre educación inicial en colegios oficiales de Bogotá
Authors: Fandiño Cubillos Graciela María , Durán Chiappe Sandra Marcela , Pulido González Jenny Maritza , Cruz Velásquez Erika Liliana
Published: December 2019

Este resumen analítico presenta algunos desarrollos de la investigación Creencias sobre educación inicial en estudiantes de la maestría de estudios en infancias y egresadas de la licenciatura en educación infantil de la Universidad Pedagógica Nacional, cuyo objetivo es identificar y analizar las creencias que sobre educación inicial tienen estudiantes y egresadas de estos programas académicos en la perspectiva de reconocer fortalezas y obstáculos en el potenciamiento de desarrollo, a través de la realización de grupos focales de discusión inscritos en el enfoque cualitativo de la investigación. Los problemas relevantes están referidos al reconocimiento del carácter de la educación inicial, el lugar de las maestras, las características de los niños de estas edades y las condiciones físicas, ambientales e institucionales de estos centros educativos para este trabajo.
Ana Z y la literatura de fantasía en la infancia: un acto de descubrimiento
Authors: Fajardo Leal Laura Paola
Published: December 2019

La presente reflexión se centra en el escenario de lo fantástico que caracteriza a la literatura infantil y que claramente se presenta en el libro titulado Ana Z, ¿dónde vas?, de la escritora ítalo-brasileña Marina Colasanti. Es la lectura literaria un acto de desocultamiento de los misterios de la vida a los cuales los niños y niñas se ven en la necesidad de explorar. Así, el texto en mención responde fundamentalmente al siguiente interrogante: ¿de qué manera la obra Ana Z, ¿dónde vas? de Marina Colasanti permite descubrir otros mundos que trascienden la cotidianidad y las vivencias de la infancia?
La transición educativa del Centro de Desarrollo Infantil al grado preescolar en Caucasia Antioquia: ¿un proceso o un paso?
Authors: Rodríguez Yiceth Johana , Álvarez Fernández Elizabeth
Published: December 2019

Ejercicio de investigación cualitativa sobre el proceso de transición de los niños y niñas del Centro de Desarrollo Infantil Los Camellitos al grado preescolar de la Institución Educativa Santo Domingo del municipio de Caucasia, en el cual se realizó un análisis sobre las acciones docentes, administrativas y pedagógicas que favorecen o desfavorecen el proceso de transición en sus tres momentos antes, durante y después; a través del uso de entrevistas, observación no participante y análisis documental. Lo que dio lugar al reconocimiento del papel de la articulación interinstitucional como elemento esencial para el proceso de transición, desde lo pedagógico y administrativo, teniendo en cuenta elementos como la formación de agentes educativas y docentes frente a la Guía ocho para transición como medio de orientación que ofrece el Instituto Colombiano de Bienestar Familiar para el proceso de transición de los niños y niñas a la educación formal. Este proceso se complementa con la recopilación de cuatro recomendaciones para un ejercicio de transición armoniosa, retomadas del discurso de las agentes educativas y docentes que hicieron parte de esta investigación.
Los niños y las niñas, ¿sujetos políticos?: construcciones posibles desde la escuela y el aula
Authors: Peña Forero Nelsy Constanza
Published: December 2019

El presente artículo muestra un panorama concerniente a la forma como se establece la configuración de subjetividades, más específicamente de subjetividad política en niños y niñas. Se realiza un rastreo del concepto que de infancia y niño(a) se ha consolidado socialmente, para entender de qué manera se asume este individuo como sujeto en una época más actual. Desde esta perspectiva, se da una mirada a la escuela como uno de los escenarios que influye en la configuración de subjetividades, para enunciar algunas de las dinámicas que allí se desarrollan en pro de la construcción de subjetividad política.
Libro álbum: un camino de creación literaria y trabajo colaborativo con niños y niñas
Authors: Lozano Johanna Paola , Moreno Luisa Fernanda , Vargas Nazly Giselle
Published: December 2019

Este artículo describe una propuesta metodológica y un camino de descubrimientos en el proceso de investigación/creación, que comienza con la realización dellibro álbum La coleccionista de abuelas y continúa con una apuesta por el trabajo en colaboración con niños como coautores, escritores e ilustradores de un libro álbum para público infantil.
Proyecto pedagógico para disminuir el consumo del biberón en la primera infancia
Authors: Sánchez Peña Melissa Katherine , Lobón Córdoba Laura Michelly , Lema Agudelo Dayanna , Quintero García Yency
Published: December 2019

Esta investigación se desarrolló de acuerdo a la pregunta ¿Cómo se puede desde un proyecto pedagógico disminuir el consumo del biberón en niños de 2 a 5 años en 2 hogares del ICBF en Pereira incluyendo sus tutores? Se tomaron en cuenta referentes teóricos como: hábito del biberón, control de hábitos, educación para la salud, promoción de la salud y pedagogía por proyectos. La metodología fue la pedagogía por proyectos apoyada en talleres pedagógicos a partir de los conocimientos previos de la comunidad creando aprendizajes significativos. Como resultados se obtuvo que la mitad de las niñas y niños abandonaran el hábito del biberón y la otra mitad disminuyeran la frecuencia del consumo, con los tutores y agentes educativas se logró aumentar el conocimiento sobre el hábito del biberón. Se concluyó que la pedagogía por proyectos y la educación para la salud son herramientas claves para lograr cambios positivos en comunidades
El emprendimiento como cultura: ¿una estrategia para potenciar las competencias ciudadanas y el trabajo en grupo en la primera infancia?
Authors: Gallego Henao Adriana María , Torres Pabón Verónica , Becerra Sierra Estefanía , Córdoba Pérez Katherine , Pérez Castaño Paula Andrea
Published: December 2019

En este artículo se muestran los resultados de investigación sobre la cultura del emprendimiento como herramienta para desarrollar las competencias ciudadanas y el trabajo en equipo en los niños de nivel jardín de un centro educativo de la ciudad de Medellín, Colombia. Para ello, se acudió al paradigma cualitativo con un enfoque hermenéutico, privilegiando como estrategia de investigación el estudio de caso. Los participantes fueron cuatro maestras titulares de los niveles pre-jardín y jardín; se aplicaron técnicas de recolección como el grupo focal, observación no participante, talleres lúdicos y entrevista semi-estructurada. Se encontró que para potenciar habilidades tales como el trabajo en equipo y la creatividad a través de la cultura del emprendimiento es necesario que los docentes partan de las necesidades e intereses de sus estudiantes. Se concluye que la cultura del emprendimiento es una oportunidad para potenciar habilidades y competencias ciudadanas enfocadas al desarrollo integral de los niños.
Revelation of New Compound from Ethanolic Extract of Fragaria x ananassa var. Lembang
Authors: Andayani Desak Gede Sri , Lotulung Puspa Dewi Narrij , Sulaswaty Anny , Qaanitaati Nur , Andini Desak Gede Tirta , Mulyani Rahmaniar , Nursyifa Eva
Published: December 2019

Fragaria x ananassa (strawberry) is a subtropical plant that can adapt well in tropical highlands. Fragaria x ananassa have been widely used to cope with health problems. The active compound component of secondary metabolites contained in Fragaria x ananassa has the potential as an antioxidant. This research is done to isolate secondary metabolites from extract of Fragaria x ananassa fruits. Extract Fragaria x ananassa was produced by maceration using ethanol as the solvent. Separation and isolation compound were carried out using Vacuum Liquid Chromatography (VLC) and Gravity Column Chromatography (GCC) guided by Thin Layer Chromatography (TLC) using hexane: ethyl acetate (3:7) as the eluent. The flavonoid compound was determined by the total content of phenolic and flavonoid in extract of Fragaria x ananassa fruits. The results of total phenolic content and total flavonoid content were 0.1130 mg/g and 0.0112 mg/g, respectively. The alkaloid compound was determined by Dragendorff testing. The elucidation of the structure by Fourier Tansform Infrared (FTIR), Nuclear Magnetic Resonance (NMR), and Liquid Chromatography Mass Spectrometry (LCMS) showed that the active compound contained in the secondary metabolite of extract ethanol from Fragaria x ananassa is 3-Cyclopentyl-5-(1-hydroxyethyl)-1,6-dihydro-7H-pyrazolo[4,3- d]pyrimidin-7-one.Keywords: Fragaria x ananassa extract, flavonoid, alkaloid, total phenolic and flavonoid content, FTIR, NMR, LCMS.
Preparation and Validation of Fe2O3 Modified Carbon Paste Electrode for Measurement of Dopamine by Voltammetry Method
Authors: Irdhawati Irdhawati , Manurung Manuntun , Sri Lestari Ni Ketut Yuni
Published: December 2019

Preparation and validation of the Fe2O3 modified carbon paste electrode have been carried out for the analysis of dopamine by the voltammetry method. Validation parameters of carbon paste electrodes (CPA) tested include linear concentration range, Limit of Detection (LoD), Limit of Quantification (LoQ), accuracy, and selectivity in the presence of ascorbic acid and uric acid. The results obtained in the optimization of the composition and condition of the Fe2O3 modifier in graphite are 0.8% mass at pH 6 solution with the Brinton Robinson buffer solution. The peak potential shifted 32 mV in the negative direction from the initial peak potential of 319 mV at the carbon paste electrode without modification to the peak potential of 287 mV at the 0.8% Fe2O3 modified carbon paste electrode. The linear concentration range at concentrations of 8 µM–100 µM obtained a linear equation y= 1.1204 + 0.1289x with R2=0.99943. LoD value obtained is 0.23 µM, and the LoQ is 0.77 µM. In the selectivity test obtained in the dopamine analysis using 0.8% Fe2O3 modified carbon paste electrode, the anodic peaks of dopamine (75 mV), ascorbic acid (190 mV), and uric acid (200 mV) can be separated. This method has acceptable repeatability because it produces a Horwitz Ratio value of 0.0417, which is smaller than two. Preparation and validation of 0.8% Fe2O3 modified carbon paste electrode can be declared as eligible for the measurement of dopamine.
Antibacterial Activity and Chemical Composition of Red Peacock Flower (Caesalpinia pulcherrima L.) Leaf Essential Oil
Authors: Constani Novena Risnalani Rintank , Soetjipto Hartati , Hartini Sri
Published: December 2019

Peacock flower (Caesalpinia pulcherrima L.) leaves contain essential oils which can be used as an ingredient in cosmetics, perfume, aromatherapy, medicine, and supplements. The study was conducted to obtain essential oils from peacock flower leaves and determine the antibacterial activity against gram-positive bacteria (Bacillus subtilis and Staphylococcus aureus) and gram-negative (Escherichia coli and Pseudomonas aeruginosa). Antibacterial activity test was carried out by the agar diffusion method, using paper discs. Measurements were made for the inhibition zone diameter (IZD) that appeared, while the essential oil component was analyzed using GC-MS. The results showed that the peacock flower leaves (C. pulcherrima) had a moderate to strong antibacterial effect at a concentration of 7.5%-20% against gram-positive bacteria (B. subtilis and S. aureus) and gram-negative bacteria (E. coli and P. aeruginosa). Gram-negative E. coli bacteria are relatively more sensitive to peacock flower leaf essential oil compared to other test bacteria. Peacock flower (C. pulcherrima) leaf essential oil is composed of 7 main components namely β-Cubebene 33.87%; Caryophyllene 23.00%; γ-Elemene 13.18%; α-Pinene 10.96%; Cadina-1(10),4-diene 10.20%; Copaene; 7.09%; β-Pinene 1.70%.
Synthesis and Characterization of Ag@C-TiO2 Nanocomposite for Degradation of Sasirangan Textile Wastewater
Authors: Dewi Heny Puspita , Santoso Joko , Trianda Nur Firda , Rodiansono Rodiansono
Published: December 2019

Carbon-titanium oxide nanocomposite (denoted as @C-TiO2) was successfully synthesized via hydrothermal method at 150°C for 24 h. The C-TiO2 nanocomposite was furtherly modified by adding an Ag metal dopant (denoted as Ag@C-TiO2) to improve and applied to the photocatalytic degradation of Sasirangan textile wastewater. The composite photocatalysts were characterized by XRD and UV–Vis DRS spectroscopies. XRD patterns showed that TiO2 in @C-TiO2 mainly consisted of a brookite phase, as indicated by a series sharp diffraction peak at 2θ = 27.2° (111), 31.5° (121) and 55.9° (241). The calculated band gap energy (Eg) derived from UV-Vis DRS spectra for TiO2, @C-TiO2, and Ag@C-TiO2 were 2.95 eV, 2.54 eV, and 2.74 eV, respectively. Ag@C-TiO2 photocatalyst was found to be active for the photocatalytic degradation of Sasirangan textile wastewater, as indicated by the change of wastewater color from dark to clear. The quantitative photocatalytic activity of Ag@C-TiO2 was evaluated in the degradation of methylene blue, whereas the conversion of methylene blue was 41.3%. The addition of Ag to @C-TiO2 is believed to play an essential role in the enhancement of photocatalytic activity.
ἄφθονοι οἶκοι: Keeping the Evil Eye at Bay
Authors: Gonis Nikolaos
Published: December 2019

Examination of the use of the adjective ἄφθονος and its synonym ἀβάσκαντος with reference to households.
Personality Traits, Demographic Factors and Entrepreneurial Intentions: Improved Understanding from a Moderated Mediation Study
Authors: Ahmed Tariq , Klobas Jane E , Ramayah T.
Published: December 2019

Studies with contradictory results have been published on the relationship between personality and entrepreneurial intentions. This paper examines the role of personality traits and demographic factors in the formation of business start-up intention, using a moderated mediation model derived from the theory of planned behaviour. Data were collected from 324 final year MBA students using a structured survey instrument and analysed with single and multi-group structural equation modelling (SEM). Innovativeness, risk propensity and stress tolerance had small but significant indirect effects on entrepreneurial intentions; these effects were mediated by attitudes to entrepreneurship and perceived behavioural control. Need for autonomy and stress tolerance were not significant, neither was family background nor work experience. Observation of small, indirect personality effects suggests some resolution to the contradictory results observed until now; helps career counsellors and university selection panels to identify candidates with the potential to become entrepreneurs; and provides support for calls for policy makers and university administrators to develop educational environments and socio-political infrastructure that provides opportunities for students to exploit their creative and risk-taking traits and develop positive attitudes to entrepreneurship.
Quality assessment of DEM derived from topographic maps for geomorphometric purposes
Authors: Szypuła Bartłomiej
Published: December 2019

Digital elevation models (DEMs) play a significant role in geomorphological research. For geomorphologists reconstructing landform and drainage structure is frequently as important as elevation accuracy. Consequently, large-scale topographic maps (with contours, height points and watercourses) constitute excellent material for creating models (here called Topo-DEM) in fine resolution. The purpose of the conducted analyses was to assess the quality of Topo-DEM against freely-available global DEMs and then to compare it with a reference model derived from laser scanning (LiDAR-DEM). The analysis also involved derivative maps of geomorphometric parameters (local relief, slope, curvature, aspect) generated on the basis of Topo-DEM and LiDAR-DEM. Moreover, comparative classification of landforms was carried out. It was indicated that Topo-DEM is characterised by good elevation accuracy (RMSE <2 m) and reflects the topography of the analyzed area surprisingly well. Additionally, statistical and percentage metrics confirm that it is possible to generate a DEM with very good quality parameters on the basis of a large-scale topographic map (1:10,000): elevation differences between Topo-DEM and: 1) topographic map amounted from−1.68 to +2.06 m,MAEis 0.10 m, RMSE 0.16 m; 2) LiDAR-DEM (MAE 1.13 m, RMSE 1.69 m, SD 1.83 m); 3) GPS RTK measurements amounted from−3.6 to +3.01 m, MAE is 0.72 m, RMSE 0.97 m, SD 0.97 m. For an area of several dozen km2Topo-DEM with 10×10 m resolution proved more efficient than detailed (1×1 m) LiDAR-DEM.
Intercession and the Taboo and Stigma on Mental Health and Doctrinal Anomalies: Pastoral and Theological Implications of Public Prayer Practices
Authors: van Ommen Armand Léon
Published: December 2019

Prayers of intercession cover a wide range of topics, yet prayers for mental health or issues around sexuality or divorce prove to be taboo and stigmatised. This article interprets this finding from empirical research with the theories of taboo as outlined by Alasdair MacIntyre and Mary Douglas. The article offers pastoral-theological reflections on the problem of taboo and stigma – caused by doctrine or cultural norms – in intercession. The article argues that the practices of solidarity, naming, and hospitality reframe the way taboo and stigma can be thought about theologically and therefore eventually might influence intercession in public worship.
What Are They Saying About Church Management? Patterns, Problems, and Considerations for Proceeding
Authors: Kheng Christina
Published: December 2019

In recent years, the Roman Catholic Church has seen an increase in pastoral education programs, literature, and other resources on church management. Though positive outcomes have been noted, there is much room for improvement in the way management ideas have been applied to the ecclesial context. This article examines patterns of engagement with management science in Catholic pastoral resources, and notes the key conflicts that have arisen. It then outlines considerations for a way forward in the inter-disciplinary engagement. These include the need for recognition of the limitations of management, critical reflexivity in the appropriation of management ideas, and dialogical discernment in the application of the faith tradition towards improving management theory and practice.
Regeneration and Early Tending of Black Locust (Robinia pseudoacacia L.) Stands in the North-West of Romania
Authors: Nicolescu Valeriu-Norocel , Buzatu-Goanță Cornelia , Bartlett Debbie , Iacob Nicolae
Published: December 2019

Background and Purpose: The aim of this study is to highlight the importance of black locust (Robinia pseudoacacia L.), a North American-originating tree species of major importance in Romania, in extreme site conditions such as sand dunes. In this respect, a Research and Development (R&D) project has been carried out in Carei-Valea lui Mihai Plain (north-west of Romania) since 2016.
Materials and Methods: Three sub-compartments were selected in IV Valea lui Mihai Working Circle, Săcueni Forest District: two pure natural regenerations by root suckers of black locust at different ages (sub-compartments 3B and 52A%) and a mixed black locust - black cherry stand (sub-compartment 23D). Biometrical measurements and analyses as well as biomass estimations were performed. A thorough statistical analysis using the data on initial, extracted and residual trees/stands was also performed.
Results: The main outputs of the project are as follows: (1) Black locust was established naturally by root suckers and the stocking of newly established stands can be as high as 50,000 suckers·ha-1; (2) The initial growth of black locust regeneration is quick and the young regeneration can close the canopy in 1-2 years, resulting in an appropriate dune fixation and wind erosion control; (3) The young pure or mixed black locust-dominated stands are left untended until the first cleaning-respacing (mean diameter 5-6 cm), when the stand shows high stocking/density and a wide variation in tree size. This intervention is from below, heavy (intensity over 25% by number of trees or basal area) and of negative selection type, removing mostly low Kraft’s class, dead or dying, and defective trees.
Conclusions: This R&D project has shown the high potential of black locust to establish naturally by root suckers after a low coppice cut and stump removal, as well as the fast initial growth of regenerated black locust. The quick canopy closure of young regeneration results in an appropriate dune fixation and wind erosion control.
Modelling Stand Variables of Beech Coppice Forest Using Spectral Sentinel-2A Data and the Machine Learning Approach
Authors: Čabaravdić Azra , Balić Besim
Published: December 2019

Background and Purpose: Coppice forests have a particular socio-economic and ecological role in forestry and environmental management. Their production sustainability and spatial stability become imperative for forestry sector as well as for local and global communities. Recently, integrated forest inventory and remotely sensed data analysed with non-parametrical statistical methods have enabled more detailed insight into forest structural characteristics. The aim of this research was to estimate forest attributes of beech coppice forest stands in the Sarajevo Canton through the integration of inventory and Sentinel S2A satellite data using machine learning methods.
Materials and Methods: Basal area, mean stand diameter, growing stock and total volume data were determined from the forest inventory designed for represented stands of coppice forests. Spectral data were collected from bands of Sentinel S2A satellite image, vegetation indices (difference, normalized difference and ratio vegetation index) and biophysical variables (fraction of absorbed photosynthetically active radiation, leaf area index, fraction of vegetation cover, chlorophyll content in the leaf and canopy water content). Machine learning rule-based M5 model tree (M5P) and random forest (RF) methods were used for forest attribute estimation. Predictor subset selection was based on wrapping assuming M5P and RF learning schemes. Models were developed on training data subsets (402 sample plots) and evaluations were performed on validation data subsets (207 sample plots). Performance of the models was evaluated by the percentage of the root mean squared error over the mean value (rRMSE) and the square of the correlation coefficient between the observed and estimated stand variables.
Results and Conclusions: Predictor subset selection resulted in a varied number of predictors for forest attributes and methods with their larger contribution in RF (between 8 and 11). Spectral biophysical variables dominated in subsets. The RF resulted in smaller errors for training sets for all attributes than M5P, while both methods delivered very high errors for validation sets (rRMSE above 50%). The lowest rRMSE of 50% was obtained for stand basal area. The observed variability explained by the M5P and RF models in training subsets was about 30% and 95% respectively, but those values were lower in test subsets (below 12%) but still significant. Differences of the sample and modelled forest attribute means were not significant, while modelled variability for all forest attributes was significantly lower (p<0.01). It seems that additional information is needed to increase prediction accuracy, so stand information (management classes, site class, soil type, canopy closure and others), new sampling strategy and new spectral products could be integrated and examined in further more complex modelling of forest attributes.
Evaluation ofSaccharomyces cerevisiaeWine Yeast Competitive Fitness in Enologically Relevant Environments by Barcode Sequencing
Authors: Schmidt Simon A , Kolouchova Radka , Forgan Angus H , Borneman Anthony R
Published: December 2019

When a wine yeast is inoculated into grape juice the potential variation in juice composition that confronts it is huge. Assessing the performance characteristics of the many commercially available wine yeasts in the many possible grape juice compositions is a daunting task. To this end we have developed a barcoded Saccharomyces cerevisiae wine yeast collection to facilitate the task of performance assessment that will contribute to a broader understanding of genotype-phenotype relations. Barcode sequencing of mixed populations is used to monitor strain abundance in different grape juices and grape juice-like environments. Choice of DNA extraction method is shown to affect strain-specific barcode count in this highly related set of S. cerevisiae strains; however, the analytical approach is shown to be robust toward strain dependent variation in DNA extraction efficiency. Of the 38 unique compositional variables assessed, resistance to copper and SO2 are found to be dominant discriminatory factors in wine yeast performance. Finally, a comparison of competitive fitness profile with performance in single inoculum fermentations reveal strain dependent correspondence of yeast performance using these two different approaches.
Factores asociados a la toma de mamografía en mujeres peruanas: análisis de la Encuesta Demográfica de Salud Familiar, 2015
Authors: Alegría-Delgado Diana , Huamani-Navarro Mauro
Published: December 2019

Introducción: El cáncer de mama es la neoplasia más común a nivel mundial en mujeres, y en el Perú es la segunda causa de muerte por cáncer. Objetivo: Determinar los factores sociodemográficos asociados a la toma de mamografía en mujeres peruanas durante el año 2015. Métodos: Estudio transversal. Se seleccionaron los datos de mujeres de 40 a 49 años, provenientes de la Encuesta Demográfica y de Salud Familiar (ENDES), 2015. Los factores sociodemográficos estudiados incluyeron al nivel educativo, estado marital, nivel educativo y edad de la pareja, edad al momento del matrimonio, índice de riqueza, lugar de residencia y región natural de residencia. Resultados: Se incluyeron 2183 mujeres, el 57,6% refirió tener secundaria completa, 64% tuvo pareja, 24,8% fue muy pobre, y 72,1% vivía en área rural. Los factores asociados a la toma de una mamografía fueron tener pareja con estudios superiores, edad al matrimonio de 25 años a más, y residencia urbana (costa y Lima Metropolitana). Conclusiones: Según la ENDES 2015, sólo el 16,9% de mujeres peruanas de entre 40 y 49 años se realizó una mamografía, existiendo factores sociodemográficos asociados a la realización de la misma.
Satisfacción y tiempo de espera de usuarios de establecimientos de salud peruanos: análisis secundario de ENSUSALUD 2014-2016
Authors: Murillo Juan Pablo , Bellido-Boza Luciana , Huamani-Ñahuinlla Percy , Garnica-Pinazo Gladys , Munares-García Oscar , Del-Carmen José
Published: December 2019

Introducción: Los sistemas de salud requieren contar con evaluaciones acerca de la calidad de la entrega de los servicios en el Perú. Objetivo: Estimar los niveles de satisfacción y tiempo de espera en usuarios de servicios de salud públicos y privados peruanos. Métodos: Análisis secundario del cuestionario 1 de la Encuesta Nacional de Satisfacción de Usuarios en Salud (ENSUSALUD) 2014, 2015 y 2016. El tiempo de espera fue definido como los minutos que tomó desde que el usuario llegó al establecimiento de salud hasta que ingresó al consultorio médico. La satisfacción fue evaluada con la percepción del usuario. Resultados: Los niveles de satisfacción fueron: 70,1% (IC 95% 69,7%-71,2%); 73,7% (IC 95% 72,5%-74,9%); y 73,9% (IC 95% 72,6%-75,1%) para el 2014, 2015 y 2016, respectivamente. Los usuarios afiliados al Seguro Integral de Salud (2014: 67,7% y 2016: 67,6%) y Seguro Social de Salud (EsSalud) (2015: 67,2%) fueron los que presentaron menores porcentajes. Las regiones que presentaron incremento en la satisfacción fueron Cajamarca (2016-2014: 26%), La Libertad (2016-2014: 26%). La mediana del tiempo de espera fue de 60 (q1-q3: 30-120), 75 (q1-q3: 30-150) y 75 (q1-q3: 35-140) minutos, para los años 2014, 2015 y 2016, respectivamente. La demora en la atención fue el problema más frecuente identificado por los usuarios. Conclusiones: En los años 2014, 2015 y 2016, el 70,1%, 73,7% y 73,9% de los usuarios de los servicios de salud peruanos estuvieron satisfechos con la atención. Se debe considerar la heterogeneidad por territorios y entidad financiera. La mediana de tiempo de espera para la atención fue de 60 minutos.
Obesidad no morbida y morbida del adulto en el Perú, 1975 - 2013
Authors: Pajuelo Ramírez Jaime , Torres Aparcana Harold L. , Bravo Rebatta Fernando , Agüero Zamora Rosa
Published: December 2019

Introducción: La obesidad es una enfermedad considerada como problema de salud pública que afecta a un gran número de personas y que requiere políticas de gobierno que enfrenten esta situación. Objetivo: Determinar las variaciones en las frecuencias de obesidad no mórbida (ONM) y obesidad mórbida (OM) de acuerdo a diferentes encuestas nacionales en función de variables socio-demográficas. Métodos: Estudio descriptivo secundario de datos de cinco encuestas nacionales: Evaluación Nutricional del Poblador Peruano (ENPPE 1975), Encuesta Nacional de Indicadores Nutricionales, Bioquímicos, Socio-económicos y Culturales (CENAN 2005), Encuesta Nacional de Hogares (ENAHO 2009-2010) y Encuesta Nacional de Hogares (ENAHO 2012-2013). La ONM se identificó por un IMC de 30 a 39,99 kg/m2 y para la OM con un IMC igual o mayor de 40 kg/m2. Resultados: La frecuencia de la ONM se incrementó de 8,5% en 1975 a 18,5% en el 2013, mientras la OM de 0,5 a 0,9% en el mismo periodo. La presencia de OM fue mayor en el género femenino (1,3%) frente al masculino (0,4%), con un incremento promedio en mujeres de 0,6% (0,7% en 1975 y 1,3% en 2013) y en varones de 0,2%. La presencia de obesidad fue mayor en el grupo de 50 a 59 años, en quienes viven en regiones costeras, áreas urbanas y ciudades ubicadas por debajo de 1000 msnm. Conclusiones: La ONM y la OM, presentes desde hace muchos años en nuestro país, tuvieron tendencia al incremento progresivo en los años de estudio, a predominio del género femenino.
Descripción de actitudes sobre ética profesional en estudiantes de dos escuelas profesionales en el área de salud, 2016
Authors: Salazar Emma , Salazar María , Rodríguez Cecilia , Díaz Julio
Published: December 2019

Introducción: La universidad tiene la responsabilidad de formar profesionales integrales comprometidos éticamente en su actuar profesional. Objetivo: Comparar las actitudes sobre ética profesional que tienen los estudiantes de dos escuelas del área de salud de la Universidad Nacional Mayor de San Marcos. Método: Estudio transversal. Participaron del estudio 284 estudiantes a los que se les aplicó la Escala de Actitudes sobre Ética Profesional de Hirsch, adecuado y validado para estudiantes de pregrado, en cuatro competencias (cognitivas y técnicas, sociales, éticas, afectivo-emocionales). Resultados: La valoración de las respuestas a las cuatro competencias fue similar en ambas escuelas, siendo las positivas mayores a 80% en tres competencias. Conclusión: En ambos grupos se encontró mayor porcentaje de actitud positiva ante las cuatro competencias, valorando en primer lugar las afectivo-emocionales, segundo lugar las cognitivas y técnicas, tercer lugar las éticas y por último las sociales.
Fuzzy Sets Theory in Comparison with Stochastic Methods to Analyse Nonlinear Behaviour of a Steel Member under Compression
Authors: Kala Z.
Published: December 2019

The load-carrying capacity of the member with imperfections under axial compression is analysed in the present paper. The study is divided into two parts: (i) in the first one, the input parameters are considered to be random numbers (with distribution of probability functions obtained from experimental results and/or tolerance standard), while (ii) in the other one, the input parameters are considered to be fuzzy numbers (with membership functions). The load-carrying capacity was calculated by geometrical nonlinear solution of a beam by means of the finite element method. In the case (ii), the membership function was determined by applying the fuzzy sets, whereas in the case (i), the distribution probability function of load-carrying capacity was determined. For (i) stochastic solution, the numerical simulation Monte Carlo method was applied, whereas for (ii) fuzzy solution, the method of the so-called α cuts was applied. The design load-carrying capacity was determined according to the EC3 and EN1990 standards. The results of the fuzzy, stochastic and deterministic analyses are compared in the concluding part of the paper.
Neural Predictive Control of Unknown Chaotic Systems
Authors: Boukabou A. , Mansouri N.
Published: December 2019

In this work, a neural networks is developed for modelling and controlling a chaotic system based on measured input-output data pairs. In the chaos modelling phase, a neural network is trained on the unknown system. Then, a predictive control mechanism has been implemented with the neural networks to reach the close neighborhood of the chosen unstable fixed point embedded in the chaotic systems. Effectiveness of the proposed method for both modelling and prediction-based control on the chaotic logistic equation and Hénon map has been demonstrated.
Asymptotic Stability of an Abstract Delay Functional-Differential Equation
Authors: Tchuenche J. M.
Published: December 2019

We study the exponential asymptotic stability of an abstract functional-differential equation with a mixed type of deviating arguments, namely: c which might represent the gestation period of the population and r(u(t)), a suitably defined function. The equation is reduced to its equivalent integral form and solved via Laplace transform method. An interesting connection of our study is with generalizations of populations with potentially complex (chaotic) dynamics.
The SVD-Fundamental Theorem of Linear Algebra
Authors: Akritas A. G. , Malaschonok G. I. , Vigklas P. S.
Published: December 2019

Given an m × n matrix A, with m ≥ n, the four subspaces associated with it are shown in Fig. 1 (see [1]).

Fig. 1. The row spaces and the nullspaces of A and AT; a1 through an and h1 through hm are abbreviations of the alignerframe and hangerframe vectors respectively (see [2]).

The Fundamental Theorem of Linear Algebra tells us that N(A) is the orthogonal complement of R(AT). These four subspaces tell the whole story of the Linear System Ax = y.  So, for example, the absence of N(AT) indicates that a solution always exists, whereas the absence of N(A) indicates that this solution is unique. Given the importance of these subspaces, computing bases for them is the gist of Linear Algebra. In “Classical” Linear Algebra, bases for these subspaces are computed using Gaussian Elimination; they are orthonormalized with the help of the Gram-Schmidt method. Continuing our previous work [3] and following Uhl’s excellent approach [2] we use SVD analysis to compute orthonormal bases for the four subspaces associated with A, and give a 3D explanation. We then state and prove what we call the “SVD-Fundamental Theorem” of Linear Algebra, and apply it in solving systems of linear equations.
Circle and Popov Criterion for Output Feedback Stabilization of Uncertain Systems
Authors: Benabdallah A. , Hammami M. A.
Published: December 2019

In this paper, we address the problem of output feedback stabilization for a class of uncertain dynamical systems. An asymptotically stabilizing controller is proposed under the assumption that the nominal system is absolutely stable.
Persistence and Stability of a Food Chain Model with Mixed Selection of Functional Responses
Authors: Maiti A. , Patra B. , Samanta G. P.
Published: December 2019

One approach to the study of an ecological community begins with an important object: its food web. Theoretical studies of food web must contend with the question of how to couple the large number of interacting species. One line of investigation assumes that the “building blocks” are species interacting in a pairwise fashion. The model we analyze in this paper describes a tritrophic food chain composed of logistic prey, a classical Lotka-Volterra functional response for prey and predator, and a Holling type-II functional response for predator and superpredator. Dynamical behaviours such as boundedness, stability, persistence, bifurcation et cetera of the model are studied critically. Computer simulations are carried out to explain the analytical findings. Finally it is discussed how these ideas illuminate some of the observed properties of real populations in the field, and explores practical implications.
Modelling Complex Chemical Processes in Homogeneous Solutions: Automatic Numerical Simulation
Authors: Klymenko O. V. , Svir I. B.
Published: December 2019

Two algorithms for the determination of the necessary limit of local error for the numerical solution of ordinary differential equation (ODE) systems describing homogeneous chemical and biochemical processes, and for the evaluation of their stiffness are developed. The approach for finding the necessary limit of local error of a numerical ODE solver is justified by the proof of the corresponding theorems. The application of the new algorithms implemented in version 2.1 of KinFitSim software to the simulation of real chemical systems is considered on the example of Belousov-Zhabotinsky reaction.
Kuahuokalā: Reflections on Space and Transformative Education Conversations
Authors: Ikeda Cathy Kanoelani , Kamai Stephanie Hauki , Hayes Michael Thomas
Published: December 2019

How can a place transform a conversation? In this paper the authors discuss how meeting to develop a professional learning community in a hale, a traditional native Hawaiian building, changed the course and direction of the learning community. Too often, departments and divisions of higher education are driven by external standards imposed by state and national accrediting and licensing agencies. The conceptions of education and the way it is implemented then is more focused on meeting the standard rather than coming to a deeper understanding of what can be accomplished for our communities in the name of education and how it can be achieved. Our PLC is intended to address this shortcoming by creating space of sharing, conversation and communal action. What emerged from our work within our relationship to the hale was an expression of the values, commitments and ideals that emerged through the context of our developing relationship. With a political desire for voice, we built a community that found meaning in the process of building something greater than ourselves, yet fundamentally immersed in our everyday lives.
Collective Meaning Making: Or, Making the Private Public
Authors: Rinehart Robert E.
Published: December 2019

N/A
Cumhuriyetin Milli Kimlik İnşası ve Dil Özelinde Dini Reformasyon Çabaları
Authors: IMIL Muhittin
Published: December 2019

Türkiye Cumhuriyeti Devletinin kurucu iradesi, yaşamak zorunda kaldıkları badirelerden sonra, yeni vatan, yeni devlet ve yeni bir toplumun inşası için hummalı bir çabanın içine girmişlerdir. Muharebe meydanında kazanılan zaferlerin tekrar aynı sorunları yaşamak zorunda kalmayacak güçlü bir devlet ve toplum yapısıyla taçlandırılması gerekmektedir. Bunun için yapılması gereken ilk ve en önemli şey ise Tanzimat’tan beri fikri açıdan tartışılan bazı değişiklikleri sosyal bünyede hayata geçirmek suretiyle devletin vatanı ve milletiyle bölünmez bütünlüğünün temel dayanağı olan milli kimliğin inşasını sağlamaktır. Tarih, dil, mitoloji, kültür, bilim ve eğitim nasıl bu amacın araçları olmuşsa, din kurumu da bu temel amaca hizmet etmek üzere düzenlenmeye çalışılmıştır. Dini alanda yapılan düzenlemelerin diğer devrimlerden daha büyük güçlüklerle karşılaşacağı muhakkaktır. Din dilinin Türkçeleştirilmesi konusunda hayata geçirilen devrimlerin temel gayesi sağlam bir milli kimlik inşası konusundaki kaygılardır. Çalışma cumhuriyetin kurucu kadrosunun dil özelinde dini alanda hayata geçirmeye çalıştıkları düzenlemelerin arka planındaki temel niyetin daha iyi anlaşılmasını sağlamak maksadını taşımaktadır.
Reescribiendo Casa de muñecas como respuesta crítica a la desigualdad de las mujeres durante el franquismo
Authors: Muñiz Iris
Published: December 2019

A Doll’s House [Et Dukkehjem, 1879] is Henrik Ibsen’s best known and most widely performed play. In Spain, it was Ibsen’s first translated play, in 1892, and it has been translated, published, staged and rewritten multiple times since then. The objective of this article is to do a preliminary analysis of the reception of three stage rewritings by Ana Diosdado (1938-2015) and Lucía Miranda (1982- ) that have as a common element their Francoist references that were used to make the plot more relatable for the Spanish audience. Therefore this article studies how the reception and interpretation of A Doll’s House in contemporary Spain has been influenced by the self-perception of the backwardness of the country in relation to women’s emancipation during Francoism, which made the situation of women in that period comparable to that of Nora in 1870s Norway.
A Multiplicidade do TDAH nas Diferentes Versões Produzidas pelas Ciências no Brasil
Authors: Ferreira Rodrigo Ramires , Moscheta Murilo dos Santos
Published: December 2019

RESUMO A partir da Teoria Ator-Rede, esta revisão teve como objetivos discutir as diferentes realidades performadas pela literatura científica brasileira sobre o TDAH e descrever a produção de versões acerca do fenômeno por meio do funcionamento de suas redes heterogêneas. Selecionamos 80 artigos científicos brasileiros das bases de dados Lilacs, Pepsic, BVS, Scielo e IndexPsi utilizando o descritor TDAH. A discussão aponta para diferentes versões do TDAH, que se distanciam, se conectam, se sobrepõem e agenciam diferentes realidades por meio das relações entre agentes humanos e não humanos que participam da construção destas versões. Espera-se que a presente pesquisa possa contribuir com um olhar para o TDAH por meio de seus agenciamentos, com base na busca de uma compreensão mais ampla e híbrida deste fenômeno.