bluuebunny/crossref_metadata_2025 huggingface dataset:
Caracterización morfológica del cerdo criollo (Sus scrofa domesticus) en el municipio de Nueva Guinea, RACCS
Authors: Hernández-Baca Marlon , Gámez-Rivas Alonso , Zeledón-Ortega Yasser
Published: July 2018

El cerdo criollo es un recurso genético olvidado, que actualmente se encuentra sumamente amenazado por el mestizaje de su material genético con diferentes razas especializadas. Con el objetivo de realizar su caracterización morfométrica, faneróptica, la relación de variables con el sexo y la edad e identifi cación de biotipos, se realizó el presente estudio, evaluándose un total de 36 machos y 57 hembras en el municipio de Nueva Guinea. Se determinó la edad y 12 medidas morfológicas a partir de las cuales se calcularon 7 índices zoométricos: cefálico (ICF), proporcionalidad (IPD), corporal (ICP), profundidad relativa de pecho (IPRP), torácico (ITO), pelviano (IPV), metacarpo torácico (IMT), y las características fanerópticas en cada uno de los individuos. Del análisis estadístico descriptivo se observó que las medidas zoométricas evaluadas presentaron un rango de variación entre 13.24 % (LK) y 30.68% (DDE), reflejando que se trata de individuos con una alta variabilidad morfoestructural. El análisis de regresión reveló que todas las medidas corporales están relacionadas signifi cativamente con la edad, no así con la variable sexo que solo presento relación positiva con cinco variables y en el total de los casos no son signifi cativas. Respecto a los índices zoométricos, estos cerdos pueden caracterizarse como dolicocéfalos (ICE = 42.51), longilíneos (ICO=98.75) y convexilíneos (IPE), con un tronco relativamente profundo e intermedio entre lo elíptico y lo cilíndrico, refl ejando valores de índice torácico coincidente con su condición de longilíneos. En las características fanerópticas, se destaca que en estos cerdos predominan las capas y mucosas negras, cuerpo con abundante pelo, ausencia de mamelas y sindactilia, con predominio de perfi les rectos. Por el análisis clúster se clasificaron cuatro grupo de animales que presentaron diferencias signifi cativas entre cada una de las variables morfométricas evaluadas. Los resultados obtenidos desprenden que se trata de individuos con alta variabilidad morfoestructural y por lo tanto es difícil hacer una tipificación zoométrica de la raza, y por otro lado que los grupos de individuos diferenciados por cluster, aun y cuando presentan diferencias estadísticamente signifi cativas entre las distintas variables, no pueden ser considerados como biotipos diferenciados genéticamente, sino consecuencia del ambiente, necesitando de un tratamiento a nivel molecular y no simplemente basado en medidas zootécnicas.
Estilos de aprendizaje de docentes: oportunidad para la mejora de la enseñanza –aprendizaje en la Universidad Nacional Agraria, Managua, Nicaragua
Authors: Aguirre Jiménez César
Published: July 2018

El estudio se desarrolló con docentes de la Facultad de Recursos Naturales y del Ambiente - Universidad Nacional Agraria, bajo el supuesto que el conocimiento de los estilos de aprendizaje de la comunidad educativa permite generar información clave que puede contribuir a mejorar los procesos de enseñanza – aprendizaje. La metodología incluyó el análisis del contexto y el diagnóstico de los estilos de aprendizaje de docentes voluntarios de FARENA, utilizando el Cuestionario Honey – Alonso de Estilos de Aprendizaje. Los resultados indican el perfil de estilos de aprendizaje de la comunidad docente es Teórico, Pragmático, Activo y Reflexivo, lo cual indica que utilizan procesos y estrategias particulares para obtener, procesar, comprender y poner en práctica una información. Dado que la evidencia señala que los mejores docentes usan los cuatro estilos en una escala alto; es deseable que se hagan esfuerzos para perfeccionar el uso de dichos estilos. En la medida que las y los docentes dominen con propiedad los cuatro estilos, podran contribuir a mejorar los procesos de enseñanza – aprendizaje, y serán capaces de enseñar a la población estudiantil el cómo potenciar sus estilos de aprendizaje.
Análisis de la situación actual y zonificación integral del territorio de Pochocuape, Managua 2015
Authors: Flores Machado Carmen María
Published: July 2018

En Nicaragua existen años de experiencia de planificación en los niveles territoriales, que se traducen en retos para los procesos de actuación en los territorios. La zonificación integral de un territorio tiene como finalidad la esquematización de las dinámicas territoriales, y considera que en la división del espacio existen zonas relativamente homogéneas, pero diferentes la una de la otra, en relación a las problemáticas de desarrollo. Este último aspecto puede ser utilizado para la promoción, articulación y armonización de visiones ante las problemáticas territoriales y su abordaje con los actores locales. El objetivo del presente trabajo fue analizar la situación actual del territorio de Pochocuape y zonificar integralmente la comunidad. El trabajo trasciende a un simple inventario de recursos en las diferentes dimensiones del desarrollo, y persigue entender la lógica de ubicación y distribución espacial de los mismos, así como las interrelaciones entre las dimensiones, para finalizar con la zonificación de la comunidad. El presente estudio es de carácter descriptivo y analítico, con un enfoque cuantitativo. Contó con una muestra de 230 hogares seleccionados por conveniencia, y fue realizado durante el mes de mayo del año 2015. Tomando en consideración las características particulares para la zonificación de la comarca, se identificó que pese a la cercanía a la zona urbana del distrito tres, todavía prevalece la ruralidad. Se comprobó, acorde a las dimensiones planteadas, que para el aspecto ambiental existe una sub clasificación en tres zonas, dos zonas para lo social y tres para lo económico. Lo ambiental y lo económico son coincidentes, y existe heterogeneidad en el ámbito social.
La Iglesia, sacramento universal de salvación. La mediación salvífica de la Iglesia
Authors: Lara Palma Ramón Obdulio
Published: July 2018

El autor intenta explicar la identidad de la Iglesia como sacramento universal de salvación, o sea, comprender la Iglesia como signo de instrumento de la unión de los hombres con Dios, de los hombres entre sí y de los hombres con la creación. Esa triple relación permite al mismo tiempo definir lo que la fe cristiana comprende como salvación: la vida que sólo se encuentra en la unión con Dios y la comunión que debe ser plena con los demás y con la misma creación. La argumentación pasa por dar una valoración a los ejes con los que la sacramentalidad de la Iglesia se desdobla: los siete sacramentos. Al final el lector podrá comprender que la salvación es un don sobrenatural y al mismo tiempo una tarea que la Iglesia debe cumplir como expresión de su misma identidad.
Por el derecho a la palabra
Authors: Gómez Arévalo Amaral Palevi
Published: July 2018

No hay resúmenes disponiblesTEORÍA Y PRAXIS año 15, No.30, Enero-Mayo de 2017, pp.127-131
Stationarity of seasonal patterns in weekly agricultural prices
Authors: Cáceres-Hernández José J. , Martín-Rodríguez Gloria
Published: July 2018

Weekly series of agricultural prices usually exhibit seasonal variations and the stationarity of these variations should be taken into account to analyse price relationships. However, unit root tests at seasonal frequencies are unlikely to have good power properties. Furthermore, movements in actual price series are often not as expected when unit roots are present. Therefore, stationarity tests at seasonal frequencies also need to be applied. In this paper, a procedure to test for the null hypothesis of stationarity at seasonal frequencies was extended to the weekly case. Once critical values were obtained by simulation exercises, unit root and stationarity tests were applied to weekly retail prices of different agricultural commodities in Spain. The most relevant finding was that many unit roots that seasonal unit root tests failed to reject did not seem to be present from the results of seasonal stationarity tests, whereas seasonal unit root tests led to the rejection of some unit roots that seemed to be present according to the results of seasonal stationarity tests. In conclusion, unit root tests should be complemented with stationarity tests before making decisions about the behaviour of seasonal patterns.
Short communication: Efficacy of a non-pheromone semiochemical for trapping of western flower thrips in the presence of competing plant volatiles in a nectarine orchard
Authors: Teulon David A. J. , Davidson Melanie M. , Nielsen Mette , Butler Ruth , Bosch Dolores , Riudavets Jordi , Castañé Cristina
Published: July 2018

Non-pheromone semiochemicals or allelochemicals (kairomones, synomones, allomones) are often derived from, or are similar to, host plant odours and depending on their use, these semiochemicals may have to compete with the same or similar odours emanating from adjacent host plants with unknown consequences on trapping efficacy. The aim of this study was to examine the efficacy of the non-pheromone thrips attractant methyl isonicotinate (MI) as a lure for Western flower thrips (WFT; Frankliniella occidentalis) over a range of Prunus persicae nectarine plant growth stages (flowering, green fruit, ripe fruit), when competition from different host plant odours may vary, and different numbers of thrips can be present, in a Catalan nectarine orchard in 2014 and 2015. Significant 2.4–3.9 × increases in WFT numbers in traps with MI compared with those without MI were consistent over the season (flowering, green fruit, mature fruit) despite overall differences in thrips numbers on these different occasions. These results suggest that MI is an effective lure throughout the nectarine growth stages despite the presumed presence of competing and changing host plant odours. Trap type and colour and MI release rate may be important for improving overall trap efficacy.
Relating the deBroglie and Compton Wavelengths to the Velocity of Light?
Authors: Kepner Gordon R.
Published: July 2018

No report in the literature has directly described this relation. New constants for particles are presented. One relates to the Compton wavelength, called here the “mass-wave” constant for all particles. The other relates to the deBroglie wavelength, called here the “velocity-wave” constant for a particle. An equation is derived based on these two constants encapsulating a fundamental relation between the matter-states, particle and wave, to the velocity of light. New approaches to the Uncertainty relations are shown. The basic Schrodinger equation is derived from the perspective of a non-dimensional second-order differential equation free of any assumed empirical constants. The resulting time-dependent wave equation for a free particle was then expressed in terms of the particle velocity and deBroglie wavelength.
Cosmic Rays and Clouds Variations Effect on the Climate is Insignificantly
Authors: Abdussamatov H. I.
Published: July 2018

It is believed that an increase in the area of the cloud cover in the lower atmosphere of the Earth caused by the influence grows of galactic cosmic rays in the period of the Grand minimum of solar activity lead to an increase the reflected part of incoming solar radiation back into space and by that to a cooling of the climate down to the Little Ice Age. We will try to estimate an inverse aspect of simultaneously influence of increase in the area of the cloud cover in to the narrowing of the transmission of the windows of atmospheric transparency, which practically compensates of this cooling by means of accumulation of energy. An increase in the reflection of the thermal radiation of the Earth surface and of the solar radiation reflected from it, as well as the significant amplification of the greenhouse effect, presents an important additional source of heating due to the increase in the area of the cloud cover in the lower atmosphere. The impact of the increase in the area of the cloud cover caused by the influence grows of cosmic rays on the climate is very small.
Potential Energy of the Electron in a Hydrogen Atom and a Model of a Virtual Particle Pair Constituting the Vacuum
Authors: Suto Koshun
Published: July 2018

In a previously published paper, the author made some mistakes in calculating the potential energy of the electron in a hydrogen atom. Those mistakes occurred due to applying a potential energy formula with a certain range of application in a region where it is not applicable. Therefore, this paper corrects that error by deriving a formula for potential energy with no range of application. The paper also proposes a model in which a virtual particle pair present in the vacuum region inside a hydrogen atom simultaneously has a photon with positive energy and a photon with negative energy (In this paper, these photons are called dark photons). In the state where the relativistic energy  is zero, the sum of the positive energy and negative energy of the virtual particle pair becomes zero. According to this model, this makes it possible for the particles to release photons, and capture negative energy.
Reporting on Adverse Drug Reactions: Knowledge, Attitudes and Practice Among Physicians Working at Healthcare Institutions in Al-Buraimi Governorate-Oman
Authors: Al Kablani Tablib Salim , Al Shamsi Hilal Salim , Almutairi Abdullah Ghthaith
Published: July 2018

OBJECTIVE: The study aims to evaluate postgraduate resident physicians’ knowledge, attitudes and practices related to reporting adverse drug reactions (ADRs). It also aims to investigate the causes of poor ADR reporting and to suggest possible ways to improve the reporting methods.METHODS: A cross-sectional study was conducted using a self-administered questionnaire. The questionnaire sought to obtain the physicians’ demographic characteristics, knowledge and practices in relation to ADRs and to identify the factors that affect and encourage ADR reporting. The questionnaire was distributed to physicians (n=117) working at governmental healthcare institutions in Al-Buraimi governorate in Oman.RESULTS: The response rate was 80%. Median score for the knowledge components of ADR reporting was 5 (total score: 7); it was 5 (total score: 5) for the attitude components. No significant difference for the knowledge and attitude scores was found between gender, age group or physicians’ medical speciality. Eighty-four of the physicians (89.4%) knew about pharmacovigilance and serious ADRs. Eighty-eight of the physicians (93.6%) believed that reporting ADRs should be mandatory. No statistical differences were found between general practitioners and specialists who felt that ADR reporting should be either compulsory or voluntary (p=0.080). Seventy-eight of the physicians (83%) noted that the lack of awareness about the reporting procedures is the main reason for not reporting ADRs. In this regard, there were no statistically significant differences between physicians younger than 45 or older than 45 (p=0.835).CONCLUSION: Deficits in the practice of ADR reporting can be resolved in the future only if all physicians in the healthcare profession are aware of the importance of reporting ADRs, the reporting system and their obligation to report ADRs.
Unplanned Pregnancy and Its Associated Factors
Authors: Yusof Muslimah , Abdul Samad Azah , Omar Maisarah , Ahmad Noor Ani
Published: July 2018

INTRODUCTION: Unplanned pregnancy is a major public health concern globally. Numerous studies found various factors that can predict or determine unplanned pregnancy. However, there were no studies that reported this problem in Malaysia. The objective of this study is to determine the prevalence of unplanned pregnancy in Malaysia and the associated factors.METHODS: This nationwide cross-sectional study targeted to women at postpartum period at government primary health care clinics throughout Malaysia. Structured questionnaire with face-to-face interview was used for data collection. The factors studied included mothers’ age, husband’s age, ethnicity, religion, marital status, education, occupation, household income, polygamous marriage, family support, contraception used, and disagreement of husband on contraception, smoking and alcohol consumption. History of emotional, physical and sexual intimate partner violence (IPV) were also studied.RESULTS: A total of 5727 Malaysian postpartum mothers were involved in this survey. The prevalence of unplanned pregnancy was 42.9% (95% CI: 38.6, 47.4). The multivariate logistic regression revealed that older mothers aged 45-49 years old (aOR: 8.010; 95%CI: 1.909, 33.013) and Muslim mothers (aOR: 2.465; 95%CI: 1.432-4.241) were significantly associated with unplanned pregnancy. In terms of household income, mothers with less than RM1000 per month were 1.712 (95% CI: 1.080, 2.713) times more likely to have unplanned pregnancy. The other significant associated factor was history of emotional intimate partner violence; aOR [1.720 (95% CI: 1.011, 2.925)].CONCLUSIONS: Unplanned pregnancies were observed to be higher among older Muslim women from low income family. A possibility of unmet need for family planning should be considered and appropriate intervention strategies planned for these at-risk population.
Are Creches a Haven for Child Care or Cesspool for Infection?
Authors: Afolabi Olusegun T. , Aluko Olufemi O. , Fehintola Funmito O. , Afolabi Bolade K. , Olaniran Olarinde
Published: July 2018

The increasing number of Nigerian women in the labour force and disintegration of the extended family system, has led to demand for alternative means of caring for children. Crèche facilities serve as alternative sources of childcare. This study aimed at assessing the adequacy of crèches in a community in Nigeria to offer child care.The study employed a descriptive cross-sectional study design; a total of 14 out of 18 crèches in the town were assessed using a checklist (78% response rate), only 62% of parents of enrolled children accepted to be interviewed while all care givers were interviewed with a questionnaire. Swab samples for microbiological analysis were collected from floors, beddings and toys in the crèches and subjected to microbiological analysis.Less than two-fifth (38%) of caregivers had good knowledge about early childhood care. About two-thirds (65%) of the caregivers had some training in early childhood care. None of the creche had an infection control policy while a little over half (57%) had good environmental hygiene status, 93% had good safety practices and 71% had fair infection control practices. Organisms isolated are Staphylococcus aureus (59%), Aerobic spore bearer (13%) and Proteus vulgaris (5%) while 28% yielded no growth. Staphylococcus aureus was resistant to second line antibiotics and only 44% were sensitive to Gentamicin. Proteus vulgaris was resistant to most antibiotics but sensitive to Gentamicin.Knowledge of care givers about childcare practices was poor. Infection control practice was fair despite absence of infection control policy.
Adolescents Discussing Sexual Behaviors With Key Influencing Audiences
Authors: Nalukwago Judith , Crutzen Rik , van den Borne Bart , Bukuluki Paul Mukisa , Bufumbo Leonard , Batamwita Richard , Zikusooka Amos , Lenzi Rachel , Thompson Gretchen , Alaii Jane
Published: July 2018

There is an increasing concern on early initiation of sexual activity among adolescents, increasing sexually transmitted infections, and teenage pregnancy in Uganda. Adolescents perceptions of these sexual behaviors might be the result of discussing sexual and reproductive health issues with key influencing audiences. This study qualitatively explored the effect of sexuality discussions with key influencing audiences by means of in-depth interviews and focus group discussions with adolescents (N=83). Findings indicate that adolescence stage comes with changes of intense sexual desires, often presumed difficult to control thus leading adolescents to engage in sexual activities. Adolescents indicated that they were aware of the sexual behaviors such as condom use, contraception use, and multiple concurrent partnerships, but intertwined with persistent myths and misconceptions. Although discussing sexuality issues with someone was found to be instrumental, adolescent highlighted challenges that hinder discussion with key influencers. Challenges include, parents lack of time to talk to their children; some religious affiliations perceived to discourage use of contraception; limited skills of community health workers to address adolescent information needs; meetings held in groups not followed up with age-focused or one-on-one discussions; negative health workers’ attitudes and use of technical language; and peer pressure. These findings suggest the need to provide adequate and updated information to clear any misconceptions and strengthening of key influencers’ communication skills to gain confidence in addressing adolescent sexual and reproductive health needs.
The Analysis of Selected Posturogram Parameters in Children with Scoliotic Changes
Authors: Wilczynski Jacek , Habik Natalia , Bieniek Katarzyna , Janecka Sylwia , Karolak Przemyslaw , Wilczynski Igor
Published: July 2018

The aim of the research was to analyze selected posturogram parameters in children with scoliotic changes. 28 girls aged 7-18 years old were involved in the study. Children attended to the Interschool Centre of Corrective Exercises in Starachowice. The research was conducted in June 2011. Spine research was made by Exhibeon digital radiography. Based on the size of the angle of spinal curvature there were identified scoliotic posture: 1-9° and scoliosis: ≥10°. There were 21 (75%) children with scoliotic posture, and 7 (25%) with idiopathic scoliosis. The frequency and type of defect didn't depended on age. Postural reactions were examined by static-dynamic Tecnobody’s ST 310 Plus Stability System platform. Perimeter was from 539,46 with opened eyes (OE) to 759,04 with closed eyes (CE). The difference in Romberg’s Test was 219,58. Ellipse area was from 447,46 with opened eyes (OE) to 850,32 with closed eyes (CE). The difference in Romberg’s Test was 402,86. Perimeter ratio was 146,68, and Area ratio was 213,89. Analysis of variance showed a significant effect of study options which clearly differentiates Permeter (p=0,000008) and Ellipse Area (p=0,029882) in the research with opened and closed eyes. In a study with closed eyes it has been observed a significant increase of posturogram variables. Analysis of variance for Area ratio didn't show any significant effects (p= 0,376899) similarly for Perimeter ratio (p=0,523086). Posturogram variables generally decreased with age, however the analysis of variance didn’t show any statistically significant effects. The analysis of the Spearman rank correlation of posturogram variables with age of examined persons also didn’t show any significant associations.
The Harmonization Potential of the Charter of Fundamental Rights of the European Union
Authors: Fontanelli Filippo , Arena Amedeo
Published: July 2018

The Harmonization Potential of the Charter of Fundamental Rights of the European Union

This article discusses two underrated and connected aspects that determine the applicability of the EU Charter on Fundamental Rights to Member State measures. First, the Charter can be a decisive standard of review for domestic measures only when they are covered by EU law but are not precluded by it. In this respect, the distinction between non-preclusion and non-application of EU law has been overlooked by legal scholarship. Second, because the scope of application of EU law and that of the Charter are identical, the latter suffers from the same uncertainties as the former. This article concludes that the entry into force of the Charter has exposed the blurred contours of the application of EU law, in particular in the area of the market freedoms. As a result, a certain spontaneous harmonization of human rights protection has emerged.
The Sovereign Strikes Back
Authors: Uitz Renáta , Sajó András
Published: July 2018

The Sovereign Strikes Back: A Judicial Perspective on Multi-Layered Constitutionalism in Europe

The supranational web of public law is often described as a new constitutionalism. It emerged in a globalized world together with global markets. In the course of the multilayered constitutional experiment, the old, national constitutional framework had lost its ability to deliver on the key features associated with constitutionalism: limiting the exercise of political powers and preventing the arbitrary exercise thereof. In the multilayered era it has become difficult to pinpoint the centre of authority. Ultimately, someone needs to govern, if not for other reasons, at least to avoid chaos. Is it possible to have the guarantees of freedom, rule of law and efficiency that a constitutional democracy seems to provide in a system where there is no sovereign with authority?
Perspectives on Comparative Federalism
Authors: Stevens Kenneth R.
Published: July 2018

Perspectives on Comparative Federalism: The American Experience in the Pre-incorporation Era

Today the Bill of Rights is understood to limit not only the federal government but also the power of the states to infringe on the civil liberties of citizens. This was not always the case. In the early days of the republic, most Americans feared federal authority far more than the states. This remained the case until passage of the 14th amendment to the Constitution followed by a series of interpretations over the years by the Supreme Court that broadened its scope. Some delegates at the convention of 1787 and other critics during ratification complained that the Constitution did not include a bill of rights, but others objected that the people needed such protections from government power. It became clear, however, that ratification could not be attained without inclusion of a Bill of Rights, which were adopted as amendments in 1791. In 1833, the Supreme Court ruled, in Barron v. Baltimore, that the provisions of the Bill of Rights imposed restrictions only on the federal government and not on the states. Passage of the 14th amendment in 1868 made the Bill of Rights restrictions on the states. Over the years, federal courts increasingly broadened the authority of the Bill of Rights as limitations on the states.
Producir textos en los inicios de la alfabetización: el impacto de diferentes enfoques pedagógicos en la expresión evaluativa
Authors: Zuccalá Gabriela , Sandbank Ana
Published: July 2018

Esta investigación se propuso analizar las expresiones evaluativas de textos narrativos, producidos por niños del nivel inicial y primer grado a partir de una historieta, en tres modalidades: oral, dictado a un adulto y escrito. Participaron 33 niños del nivel inicial y 32  de primer grado educados con  enfoque constructivista y 30 niños del nivel inicial y 28 de primer grado educados con  enfoque formal. Los resultados muestran un porcentaje significativamente mayor de expresiones evaluativas en los textos producidos por niños educados con  enfoque constructivista en ambos grupos de edad y en todas las modalidades. El análisis cualitativo se centró en la variedad de expresiones evaluativas. Las implicaciones educativas de estos resultados son discutidas.
Alfabetización inicial desde una perspectiva constructivista psicogenética. Una entrevista con Delia Lerner y Mirta Castedo
Authors: Alegría Marta , Cisternas Tatiana
Published: July 2018

Las autoras entrevistaron a Dra. Delia Lerner y Dra. Mirta Castedo, en abril del 2018.
Comparison of the Structure and Properties of Wool and Cashmere Fibres under Potassium Permanganate Treatment
Authors: Li Long , Qin Caixia , Liu Cancan
Published: July 2018

In this study, the weight loss and tensile property of wool fibers and cashmere fibers before and after various potassium permanganate solution treatment were investigated. The scale morphology and crystallization index of the original and treated fibers were analysed with scanning electron microscopy and X-ray diffraction analysis. The experimental results showed that the weight loss of wool fibers is more than that of cashmere fibers under low potassium permanganate content treatment, but is less than that of cashmere fibers under high potassium permanganate content treatment. The force loss of cashmere fibers increased linearly with an increase in potassium permanganate content. The scales of cashmere fiber were damaged at a potassium permanganate content of 9%, but the scales of wool fiber were clear. The relative crystallisation index of treated wool is twice as that of treated cashmere at a potassium permanganate content of 9%.
Energy Stored in the Electric Field Produced by a Charged Fabric with a Conductive Mesh
Authors: Kacprzyk Ryszard , Król J. , Pelesz Adam
Published: July 2018

The aim of the research was to set up a simplified analytical fabric-grounded object model for estimation of the energy stored in the electric field occurring in the space surrounding a charged fabric. A standard spherical electrode was used as the grounded object. Synthetic fabric with regularly spread conductive yarns (in the form of a grid with regular cells) was used as a sample. The model allowed to combine the energy stored in the space of the cell with the geometry of the fabric-object system and the surface charge density. The model led to a power type relation between the energy W and the cell, with a diameter of a, in the form W = K∙ an, n ≈ 3. These results were verified by those obtained from numerical modeling using the COMSOL Multiphysics program. It was found that for a cell with a diameter of 10 to 50 mm, the difference in results was lower than 38%. Based on the results obtained, it can be stated that the model proposed can be used for the design of fabrics (used in ESD protection) with the maximum acceptable stored energy.
Investigation of Some Physical Properties of Knitted Fabrics Produced from Macaroni Yarns
Authors: Çeven Erhan Kenan , Günaydin Gizem Karakan
Published: July 2018

Recently there have been new trends in fancy yarns in order to meet consumer demands for drapery, decorative and outwear fabrics. Macaroni yarns are a promising group of fancy yarn which allows new yarn designs with different raw materials at different yarn counts. In the study, supreme knitted fabrics were produced with macaroni yarns of different raw materials (polyester, acyclic, cotton) at different yarn counts (Nm 2/1, Nm 2.5/1, Nm 3.3/1, Nm 4/1 and Nm 4.5/1). Completely randomised one-factor analysis of variance (ANOVA) was used for determination of the statistical significance of the fabric type on selected physical properties of knitted macaroni fabrics in terms of fabric weight (g/m2), dimensional change (%) in the wale and course direction, abrasion resistance, and air permeability properties before and after the washing process. According to the results of the statistical analyses performed using the experimental values obtained from the tests, we determined that the fabric weights (g/m2), dimensional changes (%) in the wale and course direction, abrasion resistance and air permeability properties before and after washing were significantly influenced by the macaroni yarn’s structural parameters (such as the yarn count and raw material comprising it).
New Image Analysis Method for Determination of the Inter-Fibre Pore Size Intensity of Polyester Woven Barrier Fabrics
Authors: Kocaman Recep Türkay , Aibibu Dilbar , Cherif Chokri
Published: July 2018

Porosity is an important characteristic of a filter textile, which affects permeability and retention properties. Determination of the inter-yarn and inter-fibre pore sizes of barrier textiles is also required to assess the filter behaviour of these textiles. In this study, a software tool was developed to detect the inter-fibre pore size distribution and pore size intensity of multifilament woven barrier fabrics using cross-section images. Fabrics were chosen according to their fabric construction parameters, such as the fabric index, weft yarn filament fineness and weft yarn structure (flat or textured). Microscopic cross-section images of weft yarns were taken, processed to binary images, and analysed with respect to the pore size distribution, number of pore lengths and pore intensity. It was also analysed how the fabric index, filament cross-section and filament fineness affect the inter-fibre pore lengths and separation level proposed. It was found that weft yarns with wider lengths and lower height showed wider inter-fibre pores. Inter-fibre pores decreased with a decrease in filament fineness. Moreover the separation level proposed deviated from the 90% level depending on the fabric index. This deviation was very small in samples with reduced filament fineness and textured samples. The separation level proposed will be useful to understand the effect of fabric construction parameters to obtain targeted properties regarding inter-fibre and inter-yarn pore size.
Evaluation of Regenerated Bamboo, Polyester and Cotton Knitted Fabrics for Summer Clothing
Authors: Saricam Canan , Erdumlu Nazan
Published: July 2018

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Simulation of Delamination in a Composite Using a Shell-beam Mesoscale Finite Element Model
Authors: Marszałek Jerzy , Stadnicki Jacek
Published: July 2018

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Properties of Cotton Fabric Modified with a Chitosan Quaternary Ammonium Salt Nanoparticle
Authors: Zhang Wei , Dai Xinlan , Zhou Jinjie
Published: July 2018

In this study, a novel fibre-reactive nanoparticle was synthesised in three steps. First a water-soluble chitosan derivative, N-[(2-hydroxy-3-trimethylammonium)propyl] chitosan chloride (short for HTCC), was prepared by reacting chitosan with 2,3-epoxypropyltrimethylammonium chloride. Second the HTCC was further modified by reacting it with N-(hydroxymethyl)- acrylamide to prepare a fibre-reactive chitosan derivative, O-methyl acrylamide quaternary ammonium salt of chitosan (short for NMA-HTCC), which can form covalent bonds with cellulose fibre under alkaline conditions. Thirdly NMA-HTCC nanoparticles were prepared by the ionotropic gelation reaction method. The particle size and TEM researches indicated that the globular NMA-HTCC nanoparticle with a size distribution of 15 - 50 nm was successfully prepared and presented good dispersity and stability. Then the NMA-HTCC nanoparticle was used for the textile finishing of cotton fabric. The modified cotton fabric demonstrated excellent durable wrinkle-resistance and antibacterial activity against Staphylococcus aureus and Escherichia coli, even after 50 repeated launderings. Moreover the shrinkage-resistance of the modified cotton fabric was distinctly improved, and the contact angle was slightly larger, while the whiteness and mechanical properties had not changed in an obvious way.
Identity profiles and digital engagement among Finnish high school students
Authors: Mannerström Rasmus , Hietajärvi Lauri , Muotka Joona , Salmela-Aro Katariina
Published: July 2018

Developing a stable personal identity is considered a more precarious task in today’s society than hitherto. Skilful digital engagement may, however, constitute a valuable asset in necessary identity exploration and commitment. Applying a person-oriented approach, we examined for the first time how identity profiles are associated with digital engagement, operationalized as digital competence, gaming seriousness, type of internet activity and excessive ICT use. After controlling for gender, life satisfaction and parental SES, this study of a Finnish high school sample (N = 932) revealed that adolescents with future commitments and some exploration of options (achievement, searching moratorium) were the most advanced in digital skills and, in the former case, least prone to excessive ICT use. By contrast, adolescents desperately trying to solve the identity task (ruminative moratorium) scored highest on friendship-driven internet activity and excessive ICT use, whereas diffused individuals had the weakest digital competence. No differences between the profiles emerged regarding gaming and interest-driven internet activity. The results suggest that the digital world and related devices are purposeful tools for shaping and maintaining healthy identity commitments.
Um epistolário filosófico: a correspondência entre Schopenhauer e Johann August Becker
Authors: Fazio Domenico M.
Published: July 2018

A correspondência entre Schopenhauer e seus discípulos – cuja edição italiana eu acabei de finalizar, realizando a tradução e a redação de um aparato crítico novo e completo – é a principal fonte para o conhecimento daquela que é entendida como a Escola de Schopenhauer em sentido estrito, e constitui-se de um modo especial como indispensável para o conhecimento da personalidade dos discípulos de Schopenhauer que não escreveram sobre ele e que o filósofo chamava de Apóstolos, para distingui-los dos Evangelistas, os discípulos que escreveram sobre ele. Entre os Apóstolos destaca-se a figura de Johann August Becker, com o qual em 1844 Schopenhauer manteve uma correspondência filosófica sobre o tema da afirmação e da negação da vontade, da liberdade do querer, da doutrina do caráter e do critério das ações morais, correspondência que chegou até nós sem lacunas. A sua importância é tal que no interior da escola circulavam três cópias dela, um sinal de como os discípulos de Schopenhauer consideravam-na como documento fundador de sua organização.
O “homem de Schopenhauer” e a filosofia: sobre a raiz schopenhaueriana da concepção de filosofia em Nietzsche
Authors: Barros Márcio Benchimol
Published: July 2018

Tendo como base uma análise comparativa entre a Terceira consideração extemporânea de Nietzsche, intitulada Schopenhauer como educador, e o capítulo dos Parerga e Paralipomena sobre a filosofia universitária, o artigo procura mostrar que o texto nietzscheano, apesar das claras divergências teóricas que manifesta em relação ao pensamento do homenageado, apresenta uma concepção de filosofia absolutamente condizente com a sustentada por esse pensamento. Argumenta-se ainda que tal concepção de filosofia não se restringe à primeira fase da produção de Nietzsche, o que é exemplificado por meio de breve consideração acerca da figura do espírito livre, tal como aparece em Humano, demasiado humano I.
O que se coloca no lugar da verdade
Authors: Fonseca Eduardo Ribeiro da
Published: July 2018

Este artigo procura situar Schopenhauer em relação ao problema da verdade, já que ele pode ser tomado, de acordo com Nietzsche, como exemplo e inspiração para aqueles que se dedicam à Filosofia, mediante o que o filósofo de Frankfurt entendia como sendo o papel do filósofo, isto é, aquele que busca a verdade até mesmo no fundo dos poços escuros da loucura e do infortúnio, que tenta decifrar o enigma do mundo e da humanidade e que medita sobre o papel crítico da filosofia no âmbito da cultura.
Absurdo e limite na filosofia de Schopenhauer
Authors: Rodrigues Júnior Ruy De Carvalho
Published: July 2018

O ponto de partida do trabalho foi a inquietante e surpreendente leitura de Rosset da filosofia schopenhaueriana. Inicialmente, inclina-se mais na direção crítica em relação à tese de Rosset sobre a filosofia do absurdo, que sobre a tese, de resto talvez bem mais polêmica, da intuição genealógica. Aceitando a diferenciação radical estabelecida por Schopenhauer entre os planos metafísico e empírico defende-se a hipótese de que há, nos textos deste, uma relação possível entre ambos: uma relação que chamamos de hermenêutica. É no seu nascedouro, portanto, que a filosofia de Schopenhauer recebe a cicatriz que a fará alvo daqueles que tentarão forçá-la a adequar-se a uma das alternativas: saber ou filosofia, sabedoria ou teoria, visão de mundo ou doutrina. Em todo caso, defendemos que o importante é a clara consciência dos limites que parecem estar em jogo na relação entre Representação e Vontade. Portanto, o problema da realidade e da idealidade aponta, finalmente, para a necessidade de impormos limites à filosofia e, assim, tornar possível a caracterização da metafísica de Schopenhauer como filosofia do limite.
Clément Rosset e a duplicação do real. O paradoxo do ator entre a proteção fracassada e a aceitação jubilosa
Authors: Costa Gustavo Bezerra do Nascimento
Published: July 2018

Em O real e seu duplo, Clément Rosset aponta para a estrutura paradoxal de duplicação do acontecimento, do mundo e do homem operada pela ilusão que anseia por ser, ao mesmo tempo, ela e outra. Duas alternativas éticas se descortinariam a partir daí: proteger-se do real pela criação paradoxal e fracassada de um duplo, ou aceitá-lo por meio do júbilo heroico. Tal estrutura, com efeito, remete ao paradoxo que, já em Diderot, caracterizaria o ator em cena: “vir a ser todos sem ser ninguém”. E é tendo como imagem esse mesmo ator – dessa vez, nos processos de cultivo e incorporação que, segundo Stanislavski, comporiam o personagem – que se pretende apresentar uma terceira possibilidade, presente já nos gregos, cujo princípio demanda dominar o kairós, o tempo oportuno à ação, para com ele roubar do acaso a astúcia que o converte em destino.
Approximate solutions for two dimensional problems in water pollution – component suppression schemes
Authors: Zabadal Jorge R. S.
Published: July 2018

In this work, a new hybrid method for solving problems in water pollution is proposed. The method furnishes approximate solutions for the two-dimensional transport equation in analytical form, in cases when the coupling between the hydrological and transport models can be neglected. The high speed processing of the scheme allows to simulate the transient dispersion in real time using low performance microcomputers.
A concepção sobre a natureza do conhecimento científico de estudantes e professores do ensino médio da região de Santa Maria: influência de um curso baseado na resolução de problemas
Authors: Rocha João Batista Teixeira , Barbosa Nilda Vargas , Schetinger Maria Rosa , Pereira Maria Ester
Published: July 2018

Nowadays, science education has been extensively criticized mainly due to the fact that teaching science procedures have not allowed the formation of individuals that use science knowledge to solve problems on their daily lives. The low quality of science education certainly is responsible for the stereotyped view that population has about science and scientist, and also for the inadequate conceptions about the nature of scientific knowledge.Consequently, the development of methodologies that can enhance the quality of science education are needed. In the present report, the effect of a short course (40 hours) based on the resolution of problems (and that can be classified as apprentice centered) of high-school teachers and students from Santa Maria and surroundings were evaluated. The Nature of Scientific Knowledge Scale (NSKS) was used and this scale is sub-divided in 6 conceptual subscale (amoral, creative, developmental, parsimonious, testable, and unified). The results showed that the experimental courses (muscle contraction, digestion, respiration, and photosynthesis), in which the apprentices are engaged in solving their own problems, improved the students and teachers understanding about the nature of scientific knowledge. The improvement on the test (NSKS) occurred predominantly within the creative subscale, presumably due to the fact that the apprentices had to be creative in order to solve the proposed or generated problems during the course. These results suggest that it would be useful to teachers in service (as well as preservice teachers) to experience problem-based and experimental courses, because a better understanding of the nature of scientific knowledge by science teachers certainly will improve science education, at least with regard to the high-school students understanding.
Influência dos fatores ambientais na abundância de Portunus spinimanus latreille, 1819 (Crustacea, Brachyura, Portunidae) na região de Ubatuba (SP)
Authors: Santos Sandro
Published: July 2018

This work aimed to study the environmental factors influence on P. spinimanus abundance in the sublittoral sediments of Fortaleza bay, Ubatuba (SP). The collects were made during one year, from November/1988 to Octuber/1989, with a shrimp fishery boat equipped with 2 otter-trawl. Temperature, salinity, depth, dissolved oxygen content, organic material amount of the sediment and its granulometric composition were the environment factors sampled. The procedure adopted here consisted in to distribute the environment factors results in strata, to determine the values frequency and the number of captured individuals in each stratum though the 84 samples. The transformed abundance index was calculated by means the formula A = Ln(x+1), where, x = mean number of individuals and Ln = reperian logarithm. The abundance index tended to increase with the temperature elevation and it was high in 31.6 to 33.2% of salinity. The abundance index for both dissolved oxygen and organic material contents were characterized by normal curve. The individuals were abundant in the first two strata of depth. With relation to granulometric fraction, the animals were more abundant in subareas with gravel and very coarse sand than the others. Based on this results and field observations it can be concluded that the presence of P. spinimanus is associated to a group of environment factors among them the texture (gravel and very coarse sand) and to protected sites in the bay, characterized by a relatively calm water.
Aspectos florísticos e síndromes de dispersão das espécies arbóreas do Morro de Santo Antão, Santa Maria-RS
Authors: Alberti Luis Fernando , Hirt José Augusto Nunes , Junior Décio Brasil Flores Machado , Steckel Maurício , Tombini Cleandro Stevão , Longhi Solon Jonas
Published: July 2018

The Santo Antão Hill located at Caturrita Village in the county of Santa Maria is an expressive tourist place in the region and also a rich forest in terms of botanic species from the lower montane Seasonal Deciduous Forests of the Serra Geral. Rio Grande do Sul. The objectives of the study were to get information about the floristic composition and seed dispersion syndromes of tree species. The floristic characterization of the Santo Antão hill forest was made with detailed taxonomic identification of the species found there. The seed dispersion was studied by field observations and bibliographical reviews using the categories and concepts proposed by Van Der Pl]l, Howe & Westley and Fisher & Chapman and used by NASCIMENTO & LONGHI (1996). There were 51 tree species classified in 47 genera and 28 families. indicating a relevant floristic diversity. Leguminosae. Myrtaceae. Sapindaceae and Moraceae were the most frequent families. Among the specles, Sorocea bomplandii (cincho). Cupania vernalis (camboatá- vermelho), Actinostemon concolor (Iaranjeira-do-mato), Schinus molle (aroeira-mansa), Nectandra megapotamica (canela-preta), were the most conspicuous. 69% of the studied species presented zoochoric dispersion, which is in agreement with severals authors that put this syndrome as one of the most important in the dissemination of tree species, as well as in the balance between the flora and fauna in the ecosystem.