bluuebunny/crossref_metadata_2025 huggingface dataset:
Effects of methyl jasmonate and phloroglucinol on thebaine and sanguinarine production in cell suspension culture of Persian poppy (Papaver bracteatum Lindl.)
Authors: Dastmalchi Taraneh , Omidi Mansour , Azizinezhad Reza , Rezazadeh Shamsali , Etminan Alireza
Published: April 2019

The biosynthesis path engineering could be very promising for mass production of alkaloids by applying elicitors in the cell suspension culture of Persian poppy (Papaver bracteatum Lindl.). In this work, the effects of different concentrations of methyl jasmonate (MJ) and phloroglucinol (PG) on thebaine and sanguinarine productions in vitro were investigated. Roots as explant and supplementing 3 mg L–1 2,4-Dichlorophenoxyacetic acid with 0.5 mg L–1 Benzyl amino purine to modified MS medium were selected to achieve the most efficient combination for callus induction and production of callus fresh and dry weights. At 48 h after treatment, the addition of PG and MJ individually and in combination together significantly increased both thebaine and sanguinarine contents than the control. The results of high-performance liquid chromatography (HPLC) detection indicated that the highest production rate has been achieved through a synergic effect of two elicitors after 48 h. Results revealed that adding 200 Î¼M of MJ and 100 mg L–1 PG increased thebaine and sanguinarine contents by 56.36 and 107.71–fold than control cells, respectively.
Variations in the lipid peroxidation and antioxidant biomarkers in some tissues of anadromous cyprinid fish during migration
Authors: Kaptaner Burak , Dogan Abdulahad
Published: April 2019

Alburnus tarichi is an endemic fish species inhabiting the Lake Van basin of Turkey. This anadromous cyprinid fish migrates for spawning to the freshwater inlets pouring into Lake Van, which has highly alkaline and brackish water. During the migration, the fish moves to a new habitat from a different habitat and encounters many challenges. The objective of the present study is to investigate whether antioxidant responses occur in the tissues of A. tarichi during its anadromous migration. To this end, fish were sampled at three different points and in two different periods from the migration route, including in Lake Van at prespawning, at the entrance of a freshwater stream (Karasu) at spawning and in the upstream of the freshwater stream at spawning. Malondialdehyde (MDA) content and antioxidant defenses including activities of the enzymes superoxide dismutase, glutathione peroxidase, glutathione-S-transferase and catalase and the level of glutathione were assayed in liver, gill, white muscle, trunk kidney and anterior intestine tissues. Our results showed increased MDA levels in liver, white muscle and anterior intestine and tissue-specific antioxidant responses in the freshwater environment. This study reports that alterations occurred in the antioxidant defense system indicators in the tissues of anadromous cyprinid fish during migration and that the antioxidant defenses might reflect an important role in spawning migration that ultimately leads to accomplishment of reproductive activity.
Research on the impact of firm’s innovation - driven on new product innovation performance
Authors: Qu Yan , Chen Chun-Shuo
Published: April 2019

The framework of this research is based on the discovery in the clues of former researches that Innovation-driven is the pre factor for the firm to grow up or to gain the competitive advantage, and among them, market orientation and technological opportunity are two of the major determinant factors for the firm’s gaining the competitive advantage and improving the performance and profits. Based on knowledge-based theory, a questionnaire survey of 220 Internet firms in China was conducted to empirically analyze the relationship between innovation driven, absorptive capacity, and new product innovation performance. The article found that: the absorptive capacity mediates the relationship between innovation-driven and new product performance, and market turbulence negative adjusts the relationship between market orientation and absorptive capacity. It is possible to understand more clearly the process of firms acquiring and digesting information, transforming and mining knowledge to achieve new product innovation performance by analyzing the process of knowledge absorption and conversion.
50th International Chemistry Olympiad: Back to Where It All Began
Authors: Stankovičová Henrieta , Holzhauser Petr , Putala Martin
Published: April 2019

In July 2018, the International Chemistry Olympiad returned to celebrate its golden jubilee in its birthplace, Slovakia and the Czech Republic, which this year also commemorated the 100th anniversary of the constitution of Czechoslovakia.
The Role of Feedback in Developing Reflective Competence
Authors: Lichtenberger-Majzikné Krisztina , Fischer Andrea
Published: April 2019

The role of feedback is unquestionably crucial in a teachers’ profession. In our context of teacher education giving effective feedback is also an essential skill and tool of pedagogical evaluation for developmental purposes when educating university students and future teachers. Effective feedback fosters development, gives guidance, opens windows and new opportunities. In addition, the descriptive nature of feedback has a lot more potentials and positive effect on the teacher-student relationship than traditional assessment. In addition, giving and receiving feedback can be considered the starting point of reflection. Only by having looked into ‘the mirror’ first can one face reality, review and analyse an experience and learn from it. As a result, teaching effective feedback skills through experiential learning is a very important element in reflective teacher education. Taking all the above into consideration, a lot of emphasis is put on teaching effective feedback skills at our Centre for Teacher Education of Károli Gáspár University. Moreover, we aim at changing our students’ perspectives in assessment practice through creating a more positive feedback culture. Giving and receiving feedback effectively can only be learnt by practice and reflecting on the experience. The ultimate aim is to develop our trainees’ reflective competence which serves as a basis for their continuous professional development. Our paper first aims at interpreting feedback from a pedagogical point of view and presenting our best practice in the context of developing trainees’ reflective competence. We shall also give details of everyday practice: how it is incorporated into the pedagogy, psychology and methodology seminars in preservice training. Finally, we shall discuss how and why developing feedback skills is also incorporated into our programme of school placement and mentor training.
Hearing Impaired Children and ASD: The Importance of Early Identification and Intervention and its Role in Further Development of Life
Authors: Lukács Szandra , Mészáros Judit
Published: April 2019

Dealing with hard of hearing or deaf children plus ASD diagnosis has had limited data available in the literature. This article is a brief of overview of about the heterogeneity of hearing-impaired children’s group, the differential diagnostic aspects and difficulties in the professional field and summarizes of our team work. One of the key aspects of the article is the parents' view, the parents' informing. We introduce some single-case studies which demonstrate the Hungarian practice.
The Importance of Screening Preteens for Suicide Risk in the Emergency Department
Authors: Lanzillo Elizabeth C. , Horowitz Lisa M. , Wharff Elizabeth A. , Sheftall Arielle H. , Pao Maryland , Bridge Jeffrey A.
Published: April 2019

OBJECTIVES:

To describe the prevalence of screening positive for suicide risk in a sample of 10- to 12-year-olds presenting to the emergency department (ED).

METHODS:

Patients presenting to the ED were administered a battery of measures, including the Ask Suicide-Screening Questions and the criterion-standard Suicidal Ideation Questionnaire. Answering affirmatively to any of the 4 Ask Suicide-Screening Questions and/or scoring above the Suicidal Ideation Questionnaire cutoff score was considered a positive screen result for suicide risk.

RESULTS:

The sample included 79 preteen patients. The overall positive screen result rate was 29.1% (23 of 79). More than half (54.1%) of patients presenting with psychiatric chief complaints screened positive for suicide risk, and 7.1% of preteens presenting with chief medical complaints screened positive. Of preteens, 17.7% (14 of 79) reported previous suicidal behavior.

CONCLUSIONS:

Preteens think about suicide and engage in suicidal behavior at rates that warrant further study. Notably, 7% of preteens presenting with chief medical complaints screened positive, highlighting the importance of screening all preteen patients as young as 10 years old for suicide risk in the ED.
Management of Chorioamnionitis-Exposed Infants in the Newborn Nursery Using a Clinical Examination–Based Approach
Authors: Joshi Neha S. , Gupta Arun , Allan Jessica M. , Cohen Ronald S. , Aby Janelle L. , Kim Juliann L. , Benitz William E. , Frymoyer Adam
Published: April 2019

BACKGROUND:

Antibiotic use in well-appearing late preterm and term chorioamnionitis-exposed (CE) infants was reduced by 88% after the adoption of a care approach that was focused on clinical monitoring in the intensive care nursery to determine the need for antibiotics. However, this approach continued to separate mothers and infants. We aimed to reduce maternal-infant separation while continuing to use a clinical examination–based approach to identify early-onset sepsis (EOS) in CE infants.

METHODS:

Within a quality improvement framework, well-appearing CE infants ≥35 weeks’ gestation were monitored clinically while in couplet care in the postpartum unit without laboratory testing or empirical antibiotics. Clinical monitoring included physician examination at birth and nurse examinations every 30 minutes for 2 hours and then every 4 hours until 24 hours of life. Infants who developed clinical signs of illness were further evaluated and/or treated with antibiotics. Antibiotic use, laboratory testing, and clinical outcomes were collected.

RESULTS:

Among 319 initially well-appearing CE infants, 15 (4.7%) received antibiotics, 23 (7.2%) underwent laboratory testing, and 295 (92.5%) remained with their mothers in couplet care throughout the birth hospitalization. One infant had group B Streptococcus EOS identified and treated at 24 hours of age based on new-onset tachypnea and had an uncomplicated course.

CONCLUSIONS:

Management of well-appearing CE infants by using a clinical examination–based approach during couplet care in the postpartum unit maintained low rates of laboratory testing and antibiotic use and markedly reduced mother-infant separation without adverse events. A framework for repeated clinical assessments is an essential component of identifying infants with EOS.
International Perspectives: Implementation of the Korean Neonatal Network
Authors: Lee Soon Min , Chang Yun Sil , Park Won Soon ,   on behalf of the Korean Neonatal Network
Published: April 2019

Although there has been a marked increase in the number of NICUs in Korea, the gap in quality improvement has remained a national focus. The Korean Neonatal Network (KNN) was established in 2013 by the Korean Society of Neonatology with support from the Korea Centers for Disease Control and Prevention, with the aim of improving neonatal outcomes by offering data-driven interactive tools to all participating NICUs. Approximately 2,000 very-low-birthweight (VLBW) infants from 70 participating hospital NICUs are registered annually in the KNN, with a total of over 12,000 to date. In addition to providing a national registry of VLBW infants, this unique system also leads to an infrastructure for quality improvement in neonatal care, which in turn has an effect on the development of evidence-based neonatal medicine in Korea. Furthermore, it is encouraging that the KNN plans to develop tools to facilitate multicenter clinical trials and to join the global international network for international collaboration.
WIC Food Package Changes: Trends in Childhood Obesity Prevalence
Authors: Daepp Madeleine I.G. , Gortmaker Steven L. , Wang Y. Claire , Long Michael W. , Kenney Erica L.
Published: April 2019

OBJECTIVES:

To evaluate the association of the 2009 changes to the US Special Supplemental Nutrition Program for Women, Infants, and Children (WIC) food package and childhood obesity trends. We hypothesized that the food package change reduced obesity among children participating in WIC, a population that has been especially vulnerable to the childhood obesity epidemic.

METHODS:

We used an interrupted time-series design with repeated cross-sectional measurements of state-specific obesity prevalence among WIC-participating 2- to 4-year-old children from 2000 to 2014. We used multilevel linear regression models to estimate the trend in obesity prevalence for states before the WIC package revision and to test whether the trend in obesity prevalence changed after the 2009 WIC package revision, adjusting for changes in demographics. In a secondary analysis, we adjusted for changes in macrosomia and high prepregnancy BMI.

RESULTS:

Before the 2009 WIC food package change, the prevalence of obesity across states among 2- to 4-year-old WIC participants was increasing by 0.23 percentage points annually (95% confidence interval: 0.17 to 0.29; P < .001). After 2009, the trend was reversed (−0.34 percentage points per year; 95% confidence interval: −0.42 to −0.25; P < .001). Changes in sociodemographic and other obesity risk factors did not account for this change in the trend in obesity prevalence.

CONCLUSIONS:

The 2009 WIC food package change may have helped to reverse the rapid increase in obesity prevalence among WIC participants observed before the food package change.
Argumentation-based Intention Formation Process
Authors: Morveli Espinoza Mariela , Possebom Ayslan , Puyol-Gruart Josep , Tacla César Augusto
Published: April 2019

In this work, we present an argumentation-based formalization for supporting the process of formation of intentions in practical agents. This is based on the belief-based goal processing model proposed by Castelfranchi and Paglieri, which is a more expressive and refined model than the BDI (Beliefs-Desires-Intentions) model. We focus on the progress of goals since they are desires until they become intentions, including the conditions under which a goal can be cancelled. We use argumentation to support the transition of the goals from their initial state until the last one. Our proposal complies with both supporting relation properties defined by Castelfranchi and Paglieri, diachrony and synchrony. The former means that the support happens since the goal is a desire until it becomes an intention, and the latter that the support can be tracked, i.e. there is a memory of the cognitive path from the beginning of the process until the end. In this work, we present an argumentation-based formalization for supporting the process of formation of intentions in practical agents. This is based on the belief-based goal processing model proposed by Castelfranchi and Paglieri, which is a more expressive and refined model than the BDI (Beliefs-Desires-Intentions) model. We focus on the progress of goals since they are desires until they become intentions, including the conditions under which a goal can be cancelled. We use argumentation to support the transition of the goals from their initial state until the last one. Our proposal complies with both supporting relation properties defined by Castelfranchi and Paglieri, diachrony and synchrony. The former means that the support happens since the goal is a desire until it becomes an intention, and the latter that the support can be tracked, i.e. there is a memory of the cognitive path from the beginning of the process until the end.
Predictive model of microorganism mesophiles in processed meat products during storage under fluctuating temperatures1
Authors: Herrera-Mejía María Juliana , Sarmiento Alfonso Tullio , Sotelo-Díaz Luz Indira
Published: April 2019

The aim of this investigation was to develop a predictive model of microorganism mesophiles in processed meat products during storage under fluctuating temperatures between 1°C to 7°C to establish the shelf removal date of the products based on mesophile limits established by Colombian Technical Standard NTC 1325 of 2008 for non-canned processed meat products. The variables used in the model were as follows: temperature, storage time and population of microorganisms at the beginning of storage. The S curve of the growth of the microorganisms was approximated by sections using a multivariate quadratic regression equation. The model achieved 91% accuracy for the prediction of the shelf removal date. In terms of practicality, the model offers a simpler alternative to traditional models for the prediction of microorganisms that require a greater amount of parameters and data.
Mathematical modeling of the coefficient of load correction of the pumping of hydromixtures lateritic
Authors: Hernández Ramírez Gabriel , León Segovia Ángel Manuel , Salazar Edison , Beltran Reina Roberto , Pino Tarragó Julio Cesar
Published: April 2019

The purpose of the present investigation was to determine the behavior correction coefficient of the characteristics of the centrifugal pump load curves, using mathematical models, taking into account the rheological properties. From experimental studies such as X-ray diffraction, X-ray fluorescence, particle size analyzer, rheological analysis and mathematical modeling we obtain the behaviors of the physical and chemical interactions that take place in non-Newtonian fluids. It is concluded that to obtain a mathematical model of the correction coefficient and the equations describing the behavior of the characteristic load - discharge curves of the networks and of the pumps to, by means of the joint analysis of these, obtain the frequency of rotation of the impeller that guarantees the required flow rates in energy efficient operating regimes.
Landslide risk assessment in slopes and hillsides. Methodology and application in a real case
Authors: Ruiz Pozo Alex Fernando , Jaramillo Haidee Yuladi , GALLARDO AMAYA ROMEL JESUS
Published: April 2019

This document describes technical concepts and terms related to landslide risk on slopes and hillsides, from a comprehensive approach. A general methodology is presented for the risk analysis and assessment according to the threat, given by the interrelation susceptibility - probability of landslide occurrence; and the vulnerability of the exposed elements, obtained from a multifactorial analysis that considers physical and social aspects. Susceptibility is obtained considering various conditioning and triggering factors of instability and the probability of event occurrence is estimated from deterministic methods. The vulnerability analysis is done considering the spatial and temporal components of the potential events, as well as the impact that these could have on the exposed elements, in terms of social and material losses. This methodology is applied to the study of an urban slope in the city of Tijuana, Mexico.
Effect of photocatalytic pretreatment of potato starch for bioethanol production using Saccharomyces cerevisiae during simultaneous saccharification-fermentation (SSF)
Authors: López Vásquez Andrés Felipe , Cobo Angel Martha Isabel , Convers Sánchez Jose Daniel
Published: April 2019

In this study, the effect of the photocatalytic (PC) pre-treatment with TiO2 during gelatinization (GE) stage in a simultaneous saccharification-fermentation process (SSF) of potato starch for bioethanol production was evaluated. Maximum amount of reducing sugars was 119.3, 114.6 and 104.8 g l-1 for PC→GE, GE→PC and reference (without PC), respectively while bioethanol concentration it increased gradually up to a maximum amount of 128.21, 106.74 and 85.91 g l-1 after 30 h, for PC→GE, GE→PC and reference (without PC), respectively. These results were consistent with the reducing sugars concentration, because bioethanol concentration increased slightly during 18–30 h of fermentation. Although enzymatic activity (ʋmax) for reactions was similar, in reference (without PC pre-treatment) it not promoted quick substrate conversion into ethanol, despite showing the higher affinity enzyme-substrate (Km). Considering traditional potato starch hydrolysis, PC pre-treatment shortened the reaction time of the biological reactions. Thus, the PC pre-treatment of potato starch for bioethanol production could be an environmentally feasible process without acid and alkali addition.
Diffuse irrigation systems for the production of watermelon in the Sabanas subregion, Sucre – Colombia
Authors: Cohen Manrique Carlos , Rodriguez Jhonatan , Ruiz Escorcia Rafael , Perez Perez Mario
Published: April 2019

In the present study, the relationships between the application of a diffuse tool applied to irrigation systems in watermelon crops are explored, as well as modeling and simulation as a tool applied to the same crop. Both tools were worked through Matlab® software, control cards with sensors and meteorological stations, where the data related to the climatic conditions of the Study Region were taken and measured. It is concluded that the simulated and applied system is economically viable as an alternative for the increase of production in small, medium and large farmers of Watermelon, in the Sabanas Region of the Department of Sucre. In addition, the system is technically stable from the point of view of Control Theory with an error ratio of less than 1.5%, demonstrating good levels of liquid optimization and energy consumption.
Water consumption of the sunflower crop irrigatedwith saline water
Authors: Travassos Kaline Dantas , Gheyi Hans Raj , Barros Helder Morais Mendes , Soares Frederico Antônio Loureiro , Uyeda Claudio Augusto , Tavares Marcelo Gurgel , Dias Nildo Da Silva , Chipana-Rivera René
Published: April 2019

The objective was to evaluate the water consumption of sunflower cultivars irrigated with saline waters. The experimental design utilized was in randomized blocks of a 2 x 4 factorial arrangement. This was composed of two levels of electrical conductivity (ECw) of irrigation water (N1 - 0.6 and N2 - 3.0 dS m-1 at 25 ºC) and four cultivars of sunflower (C1 - Helio 863, C2 - Embrapa 122-V2000, C3 - Catissol 01 and C4 - Multissol), with three replications, each of them with three plants totaling 72 experimental units. There was a reduction in water consumption of sunflower cultivars irrigated with saline water (N2 - 3.0 dS m-1). The irrigation with saline water resulted in a greater volume of drained water in all sunflower cultivars.
Some physical characteristics of the O/W macroemulsion of oleoresin of astaxanthin obtained from biomass of Haematococcus pluvialis
Authors: Espinosa Alvarez Carolina , Jaime-Matus Carolina , Cerezal - Mezquita Pedro
Published: April 2019

Macroemulsions facilitate the solubilization, stability, bioaccessibility, and bioactivity of compounds with low solubility, as is the case of the emulsion developed from astaxanthin oleoresin (10%). In this study, some characteristics of the physical behavior of the macroemulsion with astaxanthin oleoresin that are in close relationship with stability were determined. One of them was the viscosity at 5, 10, 20 and 30°C. Another, corresponded to observing the size variation of the micelles, observed under the microscope for 8 days and finally, the color was determined in CIEL*a*b* system for 34 days. The results showed that the macroemulsion behaved like a shear thinning fluid up to 20°C, becoming a shear thickening fluid at 30° C. In addition, the macroemulsion presented stability in the color as time elapsed; observing some slight variations that may be due to flocculation and coalescence. Both affect the viscosity at low temperatures.
Picking planning and quality control analysis using discrete simulation: case in a food industry
Authors: Bastos Fernando Zelak Leite , Scarpin Cassius Tadeu , Pécora Junior Jose Eduardo
Published: April 2019

In warehouse operations management, picking is one of the most expensive and time-consuming activities; its impact can be seen in the final product delivered to clients, affecting logistic Key Performance Indicators and level of service. On the other hand, changes in picking policy and quality control are challenging to implement in a real-world context. In this paper, we used a simulation methodology to determine the best flow of products and the optimum ratio of the sample in control quality. Simulation has been shown as an useful tool for industrial engineering to determine the best flow and bottlenecks inside the warehouse. This paper found significant improvements when the proposed changes in the picking policy and quality control methods were simulated. Our research also showed that the sampling quality control brings substantial gains to the queuing time, while nonetheless maintaining the desirable quality.
Cuantificación de la captura de carbono y análisis de las propiedades del suelo en coberturas naturales y una plantación de pino en el páramo de Rabanal, Colombia
Authors: Fernández Pérez Carlos Julio , Cely Reyes Germán Eduardo , Ramírez Pablo Antonio
Published: April 2019

Con muestreo puntual sistemático en malla rígida de 48 puntos (350 m entre puntos) aplicado en dos estratos de suelo (profundidades de 0-15 cm y 15-30 cm) se determinó el contenido de carbono orgánico del suelo y el efecto sobre las siguientes propiedades del suelo: densidad aparente; humedad gravimétrica; pH; materia orgánica y porcentaje de carbono. La zona de estudio alcanza 500 hectáreas, contiene una plantación de pino y vegetación nativa del Páramo de Rabanal en Boyacá, Colombia. El carbono orgánico promedio del suelo encontrado a 0-15 y 0-30 cm de profundidad fue de 51,4 t/ha y 108 t/ha respectivamente. Se registraron diferencias estadísticas (p < 0,05) entre la cobertura nativa y la plantación de pino en las dos profundidades para las variables densidad aparente, humedad gravimétrica y pH, mientras que las variables materia orgánica y porcentaje de carbono no mostraron diferencias significativas. Los resultados muestran una reducción en la capacidad hídrica de los suelos del área de estudio debida al aumento de la densidad aparente en los suelos ubicados bajo las plantaciones de pino. Con respecto a los contenidos de carbono, se evidencia una disminución comparada frente a la cobertura de vegetación de páramo, ya que las condiciones propias de la plantación forestal limitan el crecimiento de los diferentes estratos vegetales endémicos de este ecosistema y, de esta manera, la actividad biológica.Ideas destacadas: artículo de investigación sobre la muestra y la metodología que permiten establecer la captura de carbono en suelos de páramo bajo diferentes tipos de uso.
La demografía industrial en Colombia: localización y relocalización de la actividad manufacturera
Authors: Fuentes lopez Hector Javier , Jiménez Reyes Luis Carlos , Pérez Forero Nicolás Alexander
Published: April 2019

Se presenta un análisis espacial de la industria en Colombia describiendo los procesos históricos que configuraron los principales centros industriales en el país. Además, se realiza un análisis de la localización y relocalización industrial para el periodo 2005-2015. A partir de datos publicados por la Superintendencia de Sociedades de Colombia se identifican las industrias relocalizadas, se georreferencian y se analizan utilizando matriz de distancia. Se concluye, por un lado, que la industria colombiana es de naturaleza doméstica, enfocadaen un mercado interno que se ubica en los principales centros poblados del país, alejados en su mayoría de las zonas costeras, y, por otro lado, que los procesos de relocalización se desarrollan en zonas cercanas a las localizaciones habituales y son promovidos, generalmente, por restricciones institucionales, por ejemplo, impuestos (incentivos tributarios) o normas ambientales.Ideas destacadas: artículo de investigación sobre los movimientos espaciales de los establecimientos industriales colombianos en el periodo 2005-2015.
Landscape Fragmentation around Ferruginous Caves of the Iron Quadrangle, Minas Gerais, Brazil
Authors: Gomes Mauro , Ruchkys Úrsula De Azevedo , Lopes Ferreira Rodrigo , Goulart Fernando Figueiredo
Published: April 2019

The aim of this article is to analyse the landscape fragmentation around ferruginous caves in the Iron Quadrangle (Minas Gerais, Brazil) and the conditions of environmental stability of the caves inserted in vegetal remnants under edge effects caused by anthropic activities. The methodology applied involved the implementation of three different landscape metrics to stablish the total area of patches, the area of the patches under edge effects (core area), and the distance from the nearest neighbour. The measurements were calculated considering classes of vegetal coverage (herbaceous, shrub, and arboreal vegetation) and then processed and combined by using map algebra to obtain the fragmentation degree, which was classified into three classes: high, moderate, and low. Results reveal that 62.88% of the vegetation coverage of the study area presents a low degree of fragmentation. Among the caves under edge effects, 15% obtained negative indices of environmental stability. Although most of the analysed caves are located in areas with a low degree of fragmentation, the proximity of anthropized areas and the risk they represent for the speleological heritage reinforce the need to create strategies focused on the conservation of the caves.Featured ideas: research article on the results of research carried out regarding the composition and configuration of the landscape surrounding ferruginous caves located in the Iron Quadrangle, in the state of Minas Gerais, Brazil.
Análisis de la susceptibilidad por inundaciones asociadas a la dinámica fluvial del río Guatiquía en la ciudad de Villavicencio, Colombia
Authors: Varón Gutiérrez Sandra Dudei , Vargas Cuervo Germán
Published: April 2019

Los ríos tropicales de piedemonte, por sus características sedimentológicas, hidrológicas e hidráulicas, generan cauces trenzados con múltiples canales que varían en número y dimensión en un lecho mayor, dependiendo de las condiciones climáticas. En este artículo se presenta el análisis del comportamiento morfodinámico de un río tropical de piedemonte en Colombia (río Guatiquía), como base para la evaluación de la susceptibilidad por inundaciones de una población ribereña (Villavicencio). El estudio se realiza mediante (i) el análisis de información histórica consultada en reportes técnicos del Instituto de Hidrología, Meteorología y Estudios Ambientales (IDEAM), del Instituto Geográfico Agustín Codazzi (IGAC) y del Servicio Geológico Colombiano; (ii) el estudio de series hidrológicas; (iii) el procesamiento e interpretación de fotografías aéreas e imágenes de satélites multiespectrales en un periodo de 78 años; así como a través de (iv) la elaboración de la cartografía geológica y geomorfológica con controles de campo. Se determinó, por un lado, el comportamiento dinámico de los cauces trenzados dentro del límite del lecho mayor del sistema fluvial y, por otro, la susceptibilidad a las inundaciones en la ciudad de Villavicencio, con 64,7 ha en categoría media-alta y 17,9 ha en categoría alta.Ideas destacadas: artículo de investigación sobre el modelamiento de amenazas por inundaciones relacionadas con la dinámica poblacional.
Da ilha de São José ao reassentamento coletivo Baixão em Babaçulândia (TO): efeitos da Usina Hidreléctrica de Estreito na Amazônia
Authors: Pitombeira Carvalho Graziane De Araújo , Sieben Airton
Published: April 2019

No ano de 2010, tendo em vista a implantação da Usina Hidrelétrica de Estreito —UHEE (Maranhão, Brasil)—, os moradores da ilha de São José (Tocantins, Brasil), antes localizados em Babaçulândia (Tocantins, Brasil), foram desterritorializados por causa da formação do reservatório da hidrelétrica. Este artigo tem o objetivo de analisar a mudança territorial da comunidade da ilha de São José, em Babaçulândia, atingida pela UHE de Estreito e identificar as alterações nos modos de vida. A pesquisa foi feita a partir de uma abordagem qualitativa, o roteiro de entrevistas, com questões fechadas e abertas, foi aplicado aos colaboradores de novembro a dezembro de 2017. A saída dos ribeirinhos de suas terras causou uma desordem social e cultural, já que eles estavam ligados ao território mais do que meramente por questões habitacionais e de subsistência física.Ideias excepcionais: artigo de investigación que analisa uma população ribeirinha desterritorializada em detrimento da construção da Usina Hidrelétrica de Estreito na Amazônia brasileira. Essa população mantinha uma relação constante com a natureza de onde retiravam seu sustento.
A universidade enquanto (não)lugar: reflexões sobre fatores de engajamento e lugarização de estudantes
Authors: Kampff Adriana Justin Cerveira , Ramirez Rosa Eulógia , Amorim Lidiane Ramirez de
Published: April 2019

As instituições de Ensino Superior, num cenário de competitividade cada vez mais acirrado, compartilham, atualmente, de um mesmo desafio: além de atrair novos estudantes, como mantê-los? Como engajá-los no cotidiano a fim de que considerem a Universidade um lugar de permanência e não somente um (não)lugar (AUGÉ, 2010, 2012) de passagem? Escolhemos a perspectiva antropológica sobre lugares e não-lugares proposta por Augé para tecer reflexões acerca do engajamento estudantil, enquanto dimensão central na gestão identitários, históricos e relacionais. Ambientes dotados de valor, de sentimentos, de experiência, de sentidos, de vínculos. Já os não-lugares, ao contrário, são espaços, normalmente, de circulação, onde não se inscrevem relações sociais duradouras e as relações são baseadas em contratos, com discursos prescritivos, imperativos, que não chegam a gerar vínculos (AUGÉ, 2010, 2012). Acreditamos que as estratégias de engajamento das IES configuram-se em dimensões fundamentais para tornarem o ambiente acadêmico lugares antropológicos, relacionais, repletos de sentidos para seus estudantes, desenvolvendo não somente suas habilidades cognitivas, mas gerando experiências e aprendizagens significativas e relevantes. Tal envolvimento, por sua vez, além de influenciar positivamente no desempenho acadêmico do estudante (GUERREIRO-CASANOVA; POLYDORO, 2010; ASTIN, 1977, 1993), também contribui para a permanência do aluno e a consolidação de sua trajetória universitária (TINTO, 2000), impactando na sustentabilidade institucional. De acordo com Augé (2012, p. 87) “assim como os lugares antropológicos criam um social orgânico, os não lugares criam tensão solitária”. Nessa perspectiva, o lugar se constrói em meio a sensibilidades e fragmentos identitários do sujeito e/ou da dimensão que ali se lugariza. Uma dimensão lugarizada, significa dizer que entre ela e o lugar há um vínculo constituído, uma ligação que a torna parte, uma sensação plena de pertencimento. A proposta do artigo é aprofundar as reflexões sobre o engajamento estudantil em uma Universidade confessional do Rio Grande do Sul, como fator de lugarização. Metodologicamente, trata-se de um estudo bibliográfico a partir dos autores de referência, já mencionados, complementado com análise documental.
ERRATA - Educação por Escrito - v. 9, n. 2 (2018)
Authors: Educação Por Escrito Equipe Editorial Da revista
Published: April 2019

A Equipe Editorial da revista Educação Por Escrito torna publica as seguintes correções, na edição v. 09, n. 2 (2018), DOI: http://dx.doi.org/10.15448/2179-8435.2018.2Alteração de paginação de todos artigos da seção - Docência Universitária e o Envolvimento Estudantil.
Formantes vocálicos en el Ngäbere de Costa Rica
Authors: Khron Haakon
Published: April 2019

En este artículo se presentan los resultados de un análisis acústico de la pronunciación cuidada de los ocho fonemas vocálicos orales del ngäbere de Costa Rica. Con base en las frecuencias promedios de los primeros dos formantes, se discuten las propiedades fonéticas de las vocales y sus implicaciones para la clasificación de los fonemas. Estos hallazgos se parangonan con descripciones del sistema vocálico publicadas anteriormente.

Palabras clave: Lengua ngäbere, fonética acústica, formantes vocálicos, fonología, fonemas vocálicos.
Genetic interrelationship among quantitative traits and path analysis of some West African okra (Abelmoschus caillei) genotypes
Authors: Jonah P.M. , Kwaga Y.M.
Published: April 2019

Abstract. Thirty-six entries of a half diallel cross were evaluated at the Teaching and Research Farm, Adamawa State University, Mubi in 2012 and 2013 under rain fed conditions. The investigation was conducted to study inter-character correlations and path coefficient analyses of yield related traits in West African okra. Fresh pod yield exhibited highly significant (P≤0.01) positive correlation with pods/plant, pod length, branches/plant, pod diameter and leaves/plant. Pod length recorded a highly significant positive correlation with plant height, pod diameter, number of leaves/plant, branches/plant and pods/plant. Similarly, pod diameter had a highly significant positive correlation with plant height, number of leaves, branches and pods/plant. Furthermore, number of pods/plant and branches/plant recorded highly significant positive correlation among yield related traits except plant height. The path coefficient analysis of fresh pod yield and yield related traits showed that number of pods/plant gave the highest direct contribution and percentage yield contribution of 47.83%, followed by pod diameter which contributed 4.58%. Also the highest combined contribution of 14.43% came from pods/plant and pod diameter. Residual percentage contribution was 30.64% revealing that pod yield attributes in this study explained 69.36%. This investigation suggests that pods/plant and pod diameter can be considered as selection criteria for the improvement of West African okra genotypes.
Productivity and yield stability at late treatment of durum wheat (Triticum durum Desf.) with antibroadleaved herbicides.
III.	Influence at treatment during 3-rd stem node stage
Authors: Delchev Gr. , Angelova S.
Published: April 2019

Abstract. The aim of the study was to investigate the productivity and yield stability at durum wheat (Triticum durum Desf.) treated with antibroadleaved herbicides during 3-rd stem node stage. The experiment was conducted during 2012-2014 on pellic vertisol soil type. Under investigation was Bulgarian durum wheat cultivar Victoria (Triticum durum var. valenciae). A total of 20 antibroadleaved herbicides were tested: Granstar 75 DF, Granstar super 50 SG, Ally max SG, Arat, Biathlon 4 D, Derby super WG, Mustang 306.25 SC, Weedmaster 646 CL, Sunsac, Secator OD, Logran 60 WG, Lintur 70 WG, Akurat 60 WG, Akurat extra WG, Eagle 75 DF, Herbaflex, Starane 250 EK, Sanafen, Dicotex 400 and Herby 675. All herbicides were treated in 3-rd stem node stage of durum wheat. It was found that during 3-rd stem node stage of durum wheat the antibroadleaved herbicides Arat, Biathlon, Derby super, Secator, Lintur, Akurat, Akurat extra and Starane can be used. These herbicides do not have a negative influence on grain yield. The most unstable yield is obtained after the treatment with herbicides Granstar, Granstar super, Ally max, Sunsac, Logran, Eagle, Herbaflex and Herby. Their selectivity to durum wheat is influenced most strongly by weather conditions during the vegetation period. From the viewpoint of technology for durum wheat growing, during 3-rd stem node stage technologically the most valuable are herbicides Derby super, Arat, Biathlon, Secator, Akurat, Akurat extra and Lintur. After the treatment with them high grain yield with high stability with relation to different years is obtained. The herbicides Granstar, Granstar super, Ally max, Sunsac, Weedmaster, Logran, Eagle, Herbaflex, Sanafen, Dicotex and Herby cannot be used during 3-rd stem node stage of durum wheat.
TRENDS AND PERSPECTIVES OF HOT METHODS FOR RECONDITIONING OF WEAR DETAILS
Authors: Todorov Iliya , Stoyanov Mitko , Nikolov Mitko , Ivanov Vladislav
Published: April 2019

The structure, trends and perspectives in development of hot methods as such used for reconditioning of worn details during the new Millennium are presented in the article as well as trends in production of consumables in industrially developing countries. The structure of welding methods is also shown giving priority to its development until 2020.
ANALYSIS OF FACTORS AFFECTING THE STABILITY OF THE

VEHICLE WHEN DRIVING ON CURVED LINES
Authors: Georgiev Georgi
Published: April 2019

To ensure safety during vehicle movement, it is necessary to take into account the magnitude of the impact of a number of factors. One of the important elements to be taken into consideration is the stability of the vehicles while driving. The factor is particularly important when driving cars on a curved path, whereby the forces acting on motor vehicles are reallocated and influence their stability.
In the report, a theoretical study was made on the factors and the power balance in different states of movement of the means of transport.
Mogućnosti provedbe genomske selekcije za male populacije goveda - primjer Hrvatske
Authors: Špehar Marija , Ivkić Zdenko , Vranić Ivica , Crnčić Josip , Dražić Maja , Pašalić Davor , Barać Zdravko
Published: April 2019

The implementation of genomic selection (GS) together with the changes caused by globalization and trade liberalization of breeding material often raise the question of sustainability of breeding programs in small
cattle populations/countries. The objective of this study was to describe the steps in the implementation of GS in small populations of Croatian Simmental (SIM) and Holstein (HOL) breeds; to show the results of its implementation; and to present the perspectives of GS for these populations. In order to improve the selection of SIM bulls, Croatia joined the German-Austrian genomic evaluation system in July 2013. The main goal of the GS in HOL population was selection of bull’s dams at a young age which started in 2016 through the inclusion in German HOL genomic evaluation system. In total, 268 SIM and 96 HOL calves were selected, genotyped, and genomically tested until the end of 2017. The criterion for the entry of SIM bulls in the artificial insemination (AI)
centres is the total merit index over 130 and candidates should not be carriers of specific monogenic defects or be recessive for them. Based on these criteria, seven young bulls were selected as for AI. The criteria for the selection of HOL females are the total merit index of 150, without monogenic defects and so far none of them reached these standards. The future perspective for HOL breed is international IgHol project for small HOL populations representing the possibility for cost-efficient solutions of GS. The implementation of GS brought opportunity to Croatian breeders to use semen of bulls from the national
breeding program. Genomics for females becomes an attractive option to capitalise the benefits of using this technology.
Effect of the feeding system and the production season on the protein fraction content in milk
Authors: Król Jolanta , Brodziak Aneta , Chabuz Witold , Litwińczuk Zygmunt , Barłowska Joanna
Published: April 2019

The objective of the present research was to analyse the protein fraction content in milk, with particular regard to whey proteins, in dependence on the cows’ feeding system (group 1 - extensive, 2 - semi-intensive, 3 - intensive) and production season (spring-summer and autumn-winter). Chemical analysis of the fodder was the base for calculation of energy and protein coverage of nutritional dose. A total of 1,133 milk samples were evaluated (550 in winter and 583 in summer). The milk samples were examined for the somatic cell count (SCC), the basic chemical composition, casein and whey proteins: α-lactalbumin, β-lactoglobulin, bovine serum albumin (BSA), lactoferrin and lysozyme. Higher content of crude protein, including casein, was noticed in milk obtained from cows coming from semi-intensive and intensive farms. However, milk taken from cows fed according to the group 1, which was based on fodder from permanent grasslands, had the highest concentration
of major whey proteins - both in the summer (pasture and hay) and winter (hay and haylage) seasons. With the increase of silage and industrial fodder in the feed ration, the content of whey proteins - mainly β-lactoglobulin and lactoferrin - decreased, which was confirmed by the obtained negative correlation coefficients.
Quarter milking parameters by lactation in dairy cows
Authors: Mišeikienė Ramutė , Tušas Saulius , Matusevičius Paulius , Kerzienė Sigita
Published: April 2019

The study was conducted on 229 dairy cows in Lithuania. DeLaval milking robots were used for cows’ milking. Milk yield (kg), milking duration (min), milk flow (kg/min), peak flow rates (kg/min) by cow lactation in separate udder quarters were analyzed. The statistical analysis of the research data was performed using the data collection and analysis program package Statistical Package for Social Science 22 for Windows, Kolmogorov-Smirnov test and One-Factor Dispersion Analysis (ANOVA) model. Distribution of the udder quarters is very important in the cow milking process. Milk yield from cow front udder quarters was about 4.6 kg (42.2 %) and from rear udder quarters 6.32 kg (57.8 %) (P<0.05). The milk content in front quarters was significantly lower than in the rear udder quarters in all dairy cows (P<0.05). Cows of the first lactation showed lower milk production per milking in all udder quarters
when compared to other lactation cows (P<0.05). The duration of milking of cows in third and more lactation in front quarters was shorter than that of the first lactation cows (P<0.005). Along the increase in the number of cows’ lactations, the milking time in the front quarters decreased. The average milk flow and the peak flow in the
first lactation cows were found to be lower than that in older cows (P<0.05).