bluuebunny/crossref_metadata_2025_split huggingface dataset:
Informe de pasantía de extensión: Desarrollo de las prácticas docentes en LEBEM en el periodo 2005(I) – 2012 (I) (sistematización de unidades didácticas de practica intermedia V)
Authors: Torres Chaparro Andrea Paola , Mora González Sonia Yisel , Rodríguez Ramírez Christian Andrés 
Published: August 2017

En la licenciatura en Educación Básica con Énfasis en Matemáticas se concibe la práctica como eje articulador del conocimiento profesional del profesor, dichas prácticas han sufrido cambios conforme a las necesidades que surgencon el desarrollo de la formación ciudadana y los objetos matemáticos, invitando a los EPM a la reflexión en torno a los cinco énfasis definidos para cada espacio de formación; para mirar el desarrollo de la práctica intermedia V con énfasis en diseño curricular, se parte de la recolección y sistematización de las unidades didácticas realizadas por los EPM durante los periodos dispuestos, logrando hacer el análisis preliminar de la información puesta en las guías del profesor y protocolos y su relación con los demás elementos constitutivos.
Construcción de la magnitud área en estudiantes de grado 5º
Authors: Galán García Geral Stivens , Rodríguez García Yeimy 
Published: August 2017

La propuesta didáctica se centra en la enseñanza-aprendizaje de la magnitud área en el grado quinto de educación básica primaria. Se diseña e implementa una secuencia de actividades bajo la teoría de situaciones didácticas propuesta por Brousseau; y se estructura según las fases para la construcción de la magnitud planteadas por Chamorro y Belmonte, las cuales se ponen en correspondencia con los estadios Piagetianos sobre el desarrollo de la medida de lo cual se obtiene una caracterización más detallada para construir una magnitud perceptible cualquiera con su respectiva unidad de medida de manera progresiva, a lo cual se incorporan los conocimientosdidácticos de Rosa Corberán, que enfatizan en el tratamiento sobre la magnitud área y se ajustan a las necesidades del estudiantado.Considerando la relación de dicha Actividad Pedagógica del maestro de matemáticas con su ideario pedagógico y la necesidad de organización de la enseñanza, propongo por medio del trabajo con los maestros una posibilidad para llevar al aula de clase los elementos construidos culturalmente.
La fracción parte - todo a través de una mirada gráfica
Authors: Acevedo Caro Diana Marcela , López Miranda Miller Alexánder , Guerrero Osorio Yeison Andrés , Morales Romero Lina Fernanda 
Published: August 2017

El trabajo que se presenta a continuación fue desarrollado durante la clase de investigación en el aula, en el transcurso de ésta, encontramos que aun nosotros como estudiantes universitarios, tenemos problemas al operar entre fracciones, y es por este motivo, que buscamos proponer un método de enseñanza de las mismas, para facilitar el proceso de prendizaje de los niños con respecto a este tema, aplicando una prueba diagnostico a estudiantes de grado 4, y evidenciando las falencias, que poseen ellos.
Enseñanza de la geometría en población invidente y de baja visión
Authors: Niño Angarita Miguel Ángel , Vanegas Gutiérrez Lina Fernanda 
Published: August 2017

En este artículo se realizó un corto análisis acerca de una actividad planeada para el área de matemáticas, específicamente dentro del ámbito geométrico el cual tiene como finalidad la enseñanza de la geometría dentro de la diversidad del aula. Por ello surge esta propuesta dentro delcontorno del aula inclusiva, caso de las matemáticas como área excluyente, para determinar las relaciones particulares de las poblaciones con discapacidad visual con los distintos contenidos y destrezas matemáticas en el contexto escolar ordinario.
Apuntes para la enseñanza de objetos matemáticos inmersos en el álgebra escolar. Un paso por diversas investigaciones
Authors: Aponte Bello Paula Andrea , Alméciga Ruiz Hasbleidy Lizeth , Torres Rodríguez Deisy 
Published: August 2017

Esta comunicación versa sobre diversas investigaciones: Kieran, Filloy, Baursfeld y Skowrone k, Wheeler y Socas, entre otros, que dan cuenta de obstáculos, errores comunes, entendimientos, concepciones y estrategias de trabajo, en torno a procesos de enseñanza-aprendizaje del álgebra escolar. A partir del estudio histórico-epistemológico del álgebra, como recurso didáctico, se presenta una propuesta de enseñanza la cual permitirá ser implantada al inicio de la enseñanza del algebra en estudiantes de secundaria, contemplando lo curricular como conjunto de experiencias, la transposición y las organizaciones didácticas como necesidades, del y para el aula. Así el fin último de este escrito, es develar elementos mínimos requeridos al momento de enseñar álgebra escolar teniendo como referente didáctico principal el uso de la historia y los obstáculos que allí se presentan, elementos estudiados y configurados en el curso Didáctica del Álgebra.
Evaluación de los significados personales en la construcción de la función lineal
Authors: Torres Zuñeda Fabio Nelson , Lurduy Ortegón Orlando 
Published: August 2017

En este documento se tratan los principales aspectos para el diseño de una investigación que evalúa los significados personales de los estudiantes de grado noveno en la construcción noción de función lineal. Inicia con los ejes estructurales del trabajo de grado, la revisión teórica y se expone la teoría base del trabajo Enfoque Ontosemiótico de la Instrucción y la Cognición Matemática.En el último apartado, se ubica la propuesta de investigación bajo el método de investigación Cualitativo y se exponen las fases que se tendrán en cuenta: partiendo de la delimitación del enfoque teórico, implementación de una secuencia de actividades, construcción de instrumentos de caracterización y análisis, triangulación de los análisis obtenidos, hastallegar al informe final.
Representaciones, lenguaje, conversión, símbolos, semiótica, narrativas simbólicas... ¿què tienen que ver con la comprensión en matemáticas?
Authors: Neira Sanabria Gloria Inés 
Published: August 2017

¿Es la matemática un lenguaje?, ¿El simbolismo matemático es necesario e imprescindible para aprender matemáticas?, Cuando se modela un enunciado del lenguaje verbal en símbolos, ¿se puede decir que se está “traduciendo” de un lenguaje a otro? ¿Aprender matemáticas es ser capaz de entender el lenguajematemático y saberlo traducir, ó es más que eso?, ¿el problema de simbolizar o modelar es una traducción? ¿Qué relación es posible plantear entre el estudio de la traducción al lenguaje simbólico y los obstáculos didácticos en la enseñanza de un área especifica de la matemática, por ejemplo, el álgebra o el cálculo? Parafraseando a Kline, “El símbolo expresa una idea, oculta una idea, u oculta la ausencia de una idea?”
Interpretación de la letra en estudiantes “talentosos” de educación básica y media
Authors: Pinilla Cuéllar Diana Pilar 
Published: August 2017

Esta intervención se realizó con estudiantes con rendimiento académicosobresaliente en un colegio distrital de la ciudad de Bogotá. El instrumentoaplicado es del profesor Pedro Javier Rojas y fue discutido en el seminario deTransición Aritmética- Álgebra de la Maestría en Educación de la UniversidadDistrital Francisco José de Caldas. Se presentan los resultados de la implementación de un instrumento que tiene como fin, en este caso, indagar sobrelos significados de la letra en contextos numéricos en estudiantes de grado 8°a 11°. El análisis se hace a partir de lo que se esperaba antes de la aplicación ylo que realmente ocurrió al aplicarlo.
Relationship between Soil Management System and Cultivar in Black Currant (Ribes nigrum L.)
Authors: Paunović Svetlana M. , Nikolić Mihailo , Miletić Rade 
Published: August 2017

Summary
This experiment evaluated the effect of soil management systems in a black currant planting on the generative potential (number of flowers per inflorescence, number of berries per cluster and yield per bush), physical attributes of the cluster and fruit (berry weight and cluster weight) and chemical properties of the fruit (soluble solids content, total sugars, titratable acidity, total anthocyanins, total phenolic content and vitamin C) of black currant cultivars. Three soil management systems were used: treatment I – bare fallow i.e. continuous tillage; treatment II – sawdust mulch, and treatment III – black polyethylene foil mulch. Four black currant cultivars were included - ‘Ben Lomond’, ‘Titania’, ‘Čačanska crna’ and ‘Tiben’. The soil management systems had a significant effect on the tested parameters. The cultivars also showed highly significant differences. Soil management system x cultivar interactions were observed for generative potential, and physical properties of the cluster and fruit, but not for fruit chemical traits, except in the soluble solids content.
The Importance of Planting Pot Marigolds (Calendula officinalis L.) in Degraded Public Spaces from the Agroecological and Economic Perspective
Authors: Popović Slobodan , Jovin Slobodanka , Đuranović Dragan , Popović Vera , Filipović Vladimir , Munitlak-Ivanović Olja , Grublješić Zeljko , Mijić Ranko 
Published: August 2017

Summary
The purpose of this paper is to analyse the introduction of certain plant species such as pot marigolds (Calendula officinalis L.) into neglected and predominantly urban spaces in the Republic of Serbia. The research was based on the results obtained in a two-year experiment conducted in the vicinity of the Novi Sad-Backa Palanka road. The primary objective of the experiment was to examine the behaviour of pot marigolds in poor-quality and neglected soils, with minimum cultural practices, in order to obtain novel plants in such adverse environments, which could be subsequently marketed in Serbia. The experiment commenced in 2014 by planting pot marigolds in plots previously cleared of weeds by mechanical tilling. In the spring of 2015, pot marigold seedlings, i.e. the first generation of plants obtained from the plots created in 2014, were planted in weed-free plots. The measurements were performed in three replicates from 10 October to 10 December 2015 in order to determine the number of volunteer plants, which could be further improved in nursery production and subsequently marketed in Serbia. The results obtained indubitably indicate that this and prospective studies exert positive ecological, agricultural and economic effects on a vast range of potential users.
The Effect of Thermal Conditioning on Thyroid Hormones, Hatchability and Embrionic Mortality of Broilers during the Incubation Period
Authors: Ružić Zoran , Kanački Zdenko , Žikić Dragan , Ušćebrka Gordana 
Published: August 2017

Summary
The aim of this study was to examine the effect of thermal conditioning on the embryonic mortality, on the time of embryonic mortality, as well as to examine the effect of this temperature regime on hatching and on thyroid gland hormone levels. 400 fertile eggs, randomly divided into two groups with two repetitions, were used in this research. The control group was exposed to the standard temperature (37.8°C) through the whole embryonic development. The second group was incubated under the standard conditions as the control group, up to 15th day of embryonic development. During 16th, 17th and 18th day of embryonic development, the incubation temperature was increased to 39°C for 3 hours. From 19th day up to the end of the incubation period the conditions of incubation were identical to those of the control group. Results of this study show that the applied treatment leads to an increase of concentration of free T3 hormone on the day 19 of embryonic development, as opposed to a decrease of free T4 hormone in the embryo’s blood compared to the control group. The percentage of hatchability was 82.2% in the control group and 83.3% in the second group. The result shows that this way of thermal manipulation did not affect the embryonic mortality, which was 9.5% in the control group and 8.9% in the experimental group. It can be concluded that in this manner thermal conditioning may manifest the positive effect on the thyroid gland hormone levels without increasing embryonic mortality or disturbing the hatching percentage.
African violet (Saintpaulia ionantha H. Wendl.): classical breeding and progress in the application of biotechnological techniques
Authors: Silva Jaime A. Teixeira da , Dewir Yaser Hassan , Wicaksono Adhityo , Sahijram Leela , Kim Haenghoon , Zeng Songjun , Chandler Stephen F. , Hosokawa Munetaka 
Published: August 2017

ABSTRACTAs a result of its domestication, breeding and subsequent commercialization, African violet (Saintpaulia ionantha H. Wendl.) has become the most famous and popular Saintpaulia species. There is interest in producing cultivars that have increased resistance to pests and low temperature, in the introduction of novel horticultural characteristics such as leaf shape, flower colour, size and form, and in improved productivity and enhanced flower duration in planta. In African violet, techniques such as the application of chemical mutagens (ethylmethanesulfonate, N-nitroso-N-methylurea), radiation (gamma (γ)-rays, X-rays, carbon ion beams) and colchicine have been successfully applied to induce mutants. Among these techniques, γ radiation and colchicine have been the most commonly applied mutagens. This review offers a short synthesis of the advances made in African violet breeding, including studies on mutation and somaclonal variation caused by physical and chemical factors, as well as transgenic strategies using Agrobacterium-mediated transformation and particle bombardment. In African violet, Agrobacterium-mediated transformation is affected by the Agrobacterium strain, selection marker, and cutting-induced wounding stress. Somaclonal variation, which arises in tissue cultures, can be problematic in maintaining true-to-type clonal material, but may be a useful tool for obtaining variation in flower colour. The only transgenic African violet plants generated to date with horticulturally useful traits are tolerant to boron (heavy metal) stress, or bear a glucanase-chitinase gene.
Progress on the Prevention and Nursing of Urinary Tract Infection Associated with Radical Hysterectomy and Pelvic Lymphadenectomy
Authors: Yang Wenyan 
Published: August 2017

Abstract
Radical hysterectomy (RH) and pelvic lymphadenectomy are the main treatment methods for early cervical cancer and endometrial carcinoma. Effective care measures, however, can decrease the incidence of UTIs and complications associated with RH and pelvic lymphadenectomy, as well as improve the therapeutic effects of administered drugs and patient prognosis. The writer refers to relevant literatures to analyze the reasons for postoperative UTIs and to provide a brief summary of the nursing methods for and progress in UTI prevention.
New Progress in the Cause Analysis and Nursing of Respiratory Tract Infection after Abdominal Surgery under General Anesthesia
Authors: Yang Congxian 
Published: August 2017

Abstract
This article provides a review of the causes of respiratory tract infection after abdominal surgery. These causes include general anesthesia, intubation factors, factors inherent to the patient, surgical factors, the injudicious use of antimicrobial agents, and the environmental factors of the ward. The perioperative management of the respiratory tract should be strengthened. Health education, respiratory function training, oral nursing intervention, atomization inhalation, and personalized expectoration methods should receive more attention to decrease the complications and promote the early rehabilitation of patients after abdominal surgery.
Application of CT Perfusion Imaging Technology in the Diagnosis of Hepatitis and Liver Cirrhosis
Authors: Li Bo , Kang Xiaodong 
Published: August 2017

AbstractImages obtained via computer tomography perfusion (CTP) technology, a non-invasive functional imaging method, can reflect the hemodynamic status and function of the liver. Images obtained via CTP imaging technology can be quantitatively analyzed. The fundamentals, examination, and analysis of CTP images are reviewed in this paper. In addition, this paper provides a review of normal liver CTP imaging, CTP research status, and future developments in the CTP imaging of hepatitis and liver cirrhosis.
Algorithm for Non Conflict Schedule in Sub Matrices Optimal in Terms of Performance and Memory
Authors: Kolchakov K. , Monov V. 
Published: August 2017

Abstract
The paper deals with the problem of traffic scheduling in a crossbar switch node used in communication networks. In particular, we study the non-conflict scheduling in sub matrices of the connection matrix of an Algorithm with diagonal activations of joint sub matrices (ADAJS) and propose a scheduling algorithm which is optimal in terms of performance and the necessary memory. For comparison, we have examined six algorithms with their software models.
Novelty Elements and Changes brought to Adoption Procedure by Law No. 57/2016
Authors: Creț Daniela 
Published: August 2017

Abstract
Adoption is chief among the measures of alternative protection that can be taken to protect a child in Romania. According to Law no. 273/2004 on adoption procedure, current forms under which adoption can be found are domestic adoption and international adoption.
In what follows we will highlight certain novelty elements and changes to the domestic adoption procedure brought by Law no. 57/2016.
Educative Non-Privative Measures of Freedom
Authors: Zau Raul-Teodor 
Published: August 2017

Abstract
Infractionality or criminality in minor rank, even if it is a component of a general infractional phenomenon, it shows some particularities determined by biological, psychological and social characteristics of minor persons which Romanian legislature had in mind when it had foreseen their criminal liability. For this, The New riminal Code, stipulates some regulations on the educational measures regarding non privacy of freedom - three conditions from the file - Recommandations R nr. 16/1992 of the European Committee. Measures regarding the non privacy of freedom are sanctions applied by the court and the young defendant is still in the society with some obligations on his side or institution which was bound by the court in the name of the law. The issue of this measure is to educate and reeducate the minor person who commited a crime, to ensure a change in his conscience to respect social values.
The Correctness Problems in Applying Inductive Statistics in Economics and Agriculture
Authors: Jaunzems Andrejs , Balode Ilze 
Published: August 2017

Abstract
In the article “Professor Tinbergen’s Method” (Keynes J. M. Professor Tinbergen’s Method. − The Economic Journal. 1939. Vol. 49. No. 195) John Maynard Keynes expressed critical notes concerning insufficient scientific level of the Jan Tinbergen’s results obtained with the help of econometric methods. The conclusion of present research is that the critical appraisal of econometric applying given by John Maynard Keynes in 1939 can be completely assigned to many published in Latvia research in economics and business done by inductive statistics because scientists carelessly apply the linear regression model in absence of the knowledge a priori required by proper theorems and algorithms. Moreover, many times there is no sense even to speak about stochastic experiment because the most important condition − ceteris paribus does not fulfil, namely, economic environment is not homogeneous enough. As the result, the causal inferences derived from Regression Report are not scientifically justified. The second conclusion is that the objective criticism in econometrics applications area in order to keep the satisfactory level of scientific correctness and scientific ethics in Latvia has to be established. We also assert that the applications of inductive econometrics in agriculture are much more justified due to possibility to repeat the stochastic experiments many times in constant circumstances like in physics and mechanics. The meta-target of present article is to remind the protests of John Maynard Keynes to the careless utilization of econometric theorems and to raise a wide discussion about the problems of correctness in applying inductive statistics in economics and agriculture in Latvia.
Mechanism of nucleophilic substitution reactions of 4-(4ˊ-nitro)phenylnitrobenzofurazan ether with aniline in acetonitrile.
Authors: Gbayo K. , Isanbor C. , Lobb K. , Oloba-Whenu O. 
Published: August 2017

Abstract
Rate constants and activation parameters obtained for the nucleophilic aromatic substitution reactions (SNAr) of 4-substitutedphenoxy-7-nitrobenzoxadiazole (1) with aniline in acetonitrile at varying temperature using Nuclear Magnetic Resonance (NMR) techniques were reported. These results were compared with the theoretical study which identifies transformations and intermediates using Density Functional Theory (DFT).
Uma instituição subversiva
Authors: Silva Livingstone Dos Santos 
Published: August 2017

Tive a oportunidade de nestas décadas , desde Lins, o primeiro encontro (1969), participar das várias iniciativas do COGEIME , como participante, palestrante , membro do Conselho Editorial da Revista, outra grande conquista , articulista, Prof. no Curso de Formação de Membros de Cons. Diretores , etc., o que muito me honra. Entendo , que , quando relembramos esta caminhada , não podemos deixar de lembrar de alguns pioneiros que marcaram os vários momentos do COGEIME : Dr. Bittencourt, Prof. Ulysses Panisset, Prof. Achilles Barreto, Prof Almir Maia , Prof. Elias Boaventura , no início, e outros mais, na tarefa de conduzir e realizar os objetivos da Instituição.
Flexural Behavior Compared with Marshall Stability of Asphalt Paving Mixtures
Authors: Ali Noori 
Published: August 2017

The flexural failure strength of asphalt mixtures was investigated as a first local trial study
to compare and construct relationships with corresponding Marshall stability ' The type and
grading of aggregate were taken. into consideration '
The results include Marshall stability - flexural load relationship ; flexural load variation with
asphalt contents; Marshall stability quotients (Marshall stability / flow )-comparison with
flexural load quotients ( flexuraf llad / deflection ) with variation of asphait contents and
constructing thlir relationships ; and variation of flexural strength (modulus of rupture ) with
asphalt contents .
The results showed that there is second degree polynomial relationship between Marshall
stability and flexural load on one hand anibetween Marshall stability and flexural load
quotients on the other hand . Significant differences resulted between Marshall stability and
flexural loads and between their load quotients for each asphalt content . The type and grading
of aggregate affect flexural stiffness with asphalt contents.
Common framework and quadratic Bethe equations for rational Gaudin magnets in arbitrarily oriented magnetic fields
Authors: Faribault Alexandre , Tschirhart Hugo 
Published: August 2017

In this work we demonstrate a simple way to implement the quantum
inverse scattering method to find eigenstates of spin-1/2 XXX Gaudin
magnets in an arbitrarily oriented magnetic field. The procedure differs
vastly from the most natural approach which would be to simply orient
the spin quantisation axis in the same direction as the magnetic field
through an appropriate rotation.Instead, we define a modified realisation of the rational Gaudin
algebra and use the quantum inverse scattering method which allows us,
within a slightly modified implementation, to build an algebraic Bethe
ansatz using the same unrotated reference state (pseudovacuum) for any
external field. This common framework allows us to easily write
determinant expressions for certain scalar products which would be
highly non-trivial in the rotated system approach.