bluuebunny/crossref_metadata_2025 huggingface dataset:
A PERIODIZAÇÃO DO DESENVOLVIMENTO NA PSICOLOGIA HISTÓRICO- CULTURAL: FUNDAMENTOS PARA A PRÁTICA PEDAGÓGICA?
Authors: Facci Marilda Gonçalves Dias , Anache Alexandra Ayache
Published: February 2022

O objetivo deste artigo é apresentar os resultados de uma pesquisa sobre as produções acadêmicas advindas das dissertações e teses publicadas em Programas de Pós-Graduação no Brasil, que pesquisaram sobre a periodização do desenvolvimento humano e sua relação com a prática pedagógica, tomando como base os fundamentos da Psicologia Histórico-Cultural. Inicialmente, vamos abordar a periodização do desenvolvimento humano e, na sequência, abordaremos a relação entre ensino e aprendizagem e os resultados da pesquisa realizada. Foi feito um levantamento de dissertações e teses no repositório do Portal de Teses e Dissertações da Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (Capes), que abordam o tema da periodização do desenvolvimento humano. A busca foi realizada em junho de 2020. Foram selecionadas 83 dissertações e 42 teses para estudo. Ao analisar os trabalhos, chama a atenção o crescimento do número de publicações no decorrer dos 35 anos, no entanto, foi na última década que houve maior concentração das produções de trabalhos. Além disso, constatamos que a etapa de ensino mais pesquisada pelos autores foi a Educação Infantil. Alguns conceitos/temas estão presentes nos textos, tais como: mediação do professor, a relação entre desenvolvimento e aprendizagem, zona de desenvolvimento próximo (ZDP), conhecimentos científicos, funções psicológicas superiores e unidade afeto-cognição, aspectos que consideramos necessários para o processo pedagógico. A título de conclusão, ressaltamos que os conhecimentos fundamentados na Psicologia Histórico-Cultural sobre a periodização do desenvolvimento humano podem subsidiar e instrumentalizar o planejamento e as ações do professor em sua atividade profissional.
Evaluation of interaction properties of uniaxial geogrids with waste foundry sand
Authors: Karnamprabhakara B. K. , Balunaini U. , Arulrajah A. , Evans R.
Published: February 2022

The reuse of waste materials can help alleviate problems related to placing them in landfill and can also preserve fast dwindling natural granular materials. Waste foundry sand (WFS) can be a promising candidate as a backfill material in the construction of mechanically stabilised earth (MSE) walls. In the design of such MSE structures, the interaction properties between WFS and geogrid reinforcement are important input parameters. In the present study, the interaction properties of a wide range of different polyester (PET) uniaxial geogrids with WFS in two common modes – direct shear and pullout – were evaluated using large-size interface direct shear and pullout tests. In the pullout mode, the interaction of the geogrid embedded in WFS under axial and transverse pullout was studied. The direct shear interface coefficients of four PET geogrids with WFS were found to be in the range observed in conventional fill materials. Higher axial and transverse pullout resistance factors were observed for geogrids with higher tensile strength and higher opening area ratio. Empirical equations were proposed to estimate the axial and transverse pullout resistances of geogrids at two pullout displacements. Finally, sensitivity analyses were carried out to identify the parameters significantly influencing the axial and transverse pullout resistances of geogrids in WFS.
A novel application of vacuum preloading: conception, analysis and performance evaluation
Authors: de Lillis Armando , Fasano Gianluca , Flora Alessandro , Miliziano Salvatore
Published: February 2022

The paper presents an original application of vacuum preloading, conceived for the reclamation of containment facilities hydraulically filled with fine-grained sediments, and the evaluation of its performance. The technique, which consists in the installation of horizontal vacuum layers within the dredged soil mass, with the aim of reducing the soil volume and accelerating the consolidation while filling is underway, was successfully implemented for the first time in the port of Gaeta (Italy). The construction sequence and the numerical models developed to analyse the huge changes of state experienced by the soil – whose prediction is paramount in evaluating the actual storage capacity of the impoundments – are described. Monitoring data and in situ test results are illustrated and compared with numerical predictions (class A, C and back-analyses), confirming the effectiveness of the technique and of the modelling choices. Finally, the lessons learned from the case history to optimise the use of the technical solution and of the modelling approach are reported. The presented vacuum preloading technique and analysis methods can be highly beneficial to the environmentally sound and cost-effective design of reclamation works, especially, but not only, those involving undersized containment facilities.
ПРАКТИКИ ЭТНОКУЛЬТУРНОГО ТУРИЗМА: ЭКЗИСТЕНЦИОНАЛЬНЫЕ АСПЕКТЫ
Authors: Дашкова Елена Валерьевна
Published: February 2022

Аннотация. Целью исследования является определение экзистенциональных аспектов этнографического туризма, возможности использования «захваченности» человека интересом к этническим культурам в рамках этнокультурного туризма и развитием способности к реконструкции собственной этнической культуры.

Методологическую базу исследования представляют базисные понятия экзистенциализма в сфере межкультурного взаимодействия. Теоретическую и методологическую основу исследования составили исследования зарубежных и отечественных философов и культурологов. В статье используется диалектический метод, позволяющий выявить наиболее общие закономерности развития представлений об этнокультурном туризме. К используемым научным методам относятся метод причинно-следственных связей, метод сравнения, метод моделирования.

Результаты исследования. Рассматриваемый феномен этнокультурного туризма характеризуется высоким уровнем межкультурных взаимодействий, происходящих в процессе знакомства с этническими культурами. Межкультурное взаимодействие выступает важной частью социальных интеракций, происходящих, как правило, между носителями различных культурных паттернов. Межкультурное взаимодействие может иметь дифференцированные формы, связанные с глобальными культурными различиями. Но вместе с тем развитие межкультурных интеракций между народами, позволяющее преодолевать кризисы коммуникации, способствует распространению человеческой свободы, во многом основанной на ответственности одних сообществ перед другими. Этнокультурный туризм является инструментом, позволяющим усилить контакты между народами, направленные во многом на кросс-культурное сотрудничество, преодоление ксенофобии и других форм нетерпимости. Исходя из персоналистической установки в современной философии, а также того внимания, которое философы уделяют коммуникации и собственно языку, можно сделать вывод, что личностью является человек, способный вести межкультурный диалог, не боясь и не стесняясь, но вместе с тем уважая представителей других культур, партнеров и друзей по межкультурным интеракциям. Появление этнокультурного туризма свидетельствует о прогрессе в сфере человеческой свободы. Проведенный анализ позволяет рассматривать этнокультурный туризм в качестве самостоятельной духовной ценности, важной для развития глобальной культуры.

Перспективы исследования заключаются в дальнейшем исследовании практик этнокультурного туризма как формы межкультурных интеракций.
ИСТОРИЧНОСТЬ В СОЦИАЛЬНОМ ЗНАНИИ: ТЕОРЕТИКО-МЕТОДОЛОГИЧЕСКИЕ ПРОБЛЕМЫ
Authors: Павлов Павел Викторович
Published: February 2022

Аннотация. Целью статьи является анализ проблемы историчности в социальном знании. Исследуется дуализм исторического и социологического типов познания общественной реальности; особое место отводится проблеме социальных структур и социальных изменений.

Методология исследования. Статья базируется на конкретно-исторической методологии, в свете которой рассмотрены противоречия социального знания и его становления.

Результаты исследования. Историчность является фундаментальной характеристикой социальной реальности, а также методологическим принципом ее исследования. В статье делается вывод об актуальности конкретно-исторической методологии, в свете которой возможно адекватное понимание социальных трансформаций в их сложности и противоречивости.
ЭКОЛОГИЧЕСКИЕ АСПЕКТЫ РОССИЙСКОЙ УРБАНИЗАЦИИ/ДЕУРБАНИЗАЦИИ
Authors: Штофер Людмила Львовна , Шевченко Ольга Михайловна
Published: February 2022

Аннотация. Цель исследования заключается в рассмотрении экологических аспектов процессов урбанизации/деурбанизации в России.

Методологической основой исследования являются социокультурный подход к пониманию становления городской организации общественной жизни; теории урбанизации, позволяющие исследовать факторы и специфику функционирования города как экосоциального пространства.

Результаты исследования. Экологические аспекты российской урбанизации/деурбанизации отражают как глобальные тенденции развития человечества, так и цивилизационные особенности России. Последние связаны с быстрым разрушением природоориентированного сознания традиционного общества и укоренением идей покорения и эксплуатации природы; с догоняющим характером советской модернизации, потребовавшей за короткий период осуществить урбанизацию/индустриализацию аграрной страны; с дисбалансом между новациями (стремительным ростом городов) и традиционализмом (аграрной ментальностью и общинным типом сознания их населения); с тенденциями деурбанизации, возникшими в постсоветский период и связанными с деиндустриализацией, следствием которой стало массовое появление депрессивных территорий; с наличием значительной территории, позволяющей пока не сильно озадачиваться последствиями неэффективных программ утилизации промышленных и бытовых отходов.

Перспективы исследования. Работа открывает перспективы для дальнейшего исследования экологических угроз российских процессов урбанизации/деурбанизации.
„ZA LUBAV ISUKARSTA“ – PRIPOVIJEST O SVETOM ŽULIANU
Authors: Dürrigl Marija-Ana
Published: February 2022

U dubrovačkom „Libru od mnozijeh razloga“ zapisana je jedna verzija legende o sv. Julijanu (s nadimkom Svratištar, kako ga zove Marko Marulić) koja je u hrvatskoj staroj književnosti vrlo skromno zastupljena. Ta se inačica u nekoliko elemenata razlikuje od one u „Zlatnoj legendi“ J. da Vorragine, a temeljna tekstološka i književnopovijesna analiza tek predstoji. U okviru hagiografske književnosti na slavenskom idiomu s područja Hrvatske ova istoria (!) zanimljiva je s tematsko-sadržajnog, ali i kompozicijskog i retoričko-figuralnog gledišta. U dramatičnom tekstu koji se spazmodično kreće preko nekoliko presudnih (kadšto neočekivanih) vrhunaca, od kojih je jamačno najneobičnije ubojstvo vlastitih roditelja (doduše, nehotično i izazvano đavoljom prijevarom) do Žulijanova smirenja u Kristovu oproštenju. Žulijan (Julijan) je jedan od svetaca koji se, nakon počinjenja teškoga grijeha, kaju i bivaju spašeni od vječne muke – dapače, izrijekom u molitvenom zaključku teksta kaže se: „Žulianь zvani izpovednikь blaženi da na nebu i na zemli bude našь otvietnikь amenь.“ Egzemplarnost se ovoga hagiografskog teksta miješa s motivskim sastavnicama koje nose odjeke raznih literarnih izvora, žanrova ili tradicija, kao što su folklor, antička tradicija i viteška literatura. U tom smislu ovaj tekst djeluje poput kakova composituma i kao takav je samosvojan u našoj sačuvanoj srednjovjekovnoj i ranonovovjekovnoj književnosti.
Çok ürünlü özdeş makineli iki sıralı tesis düzenleme problemi için matematiksel model önerileri
Authors: DURMAZ Esra Duygu , ŞAHİN Ramazan
Published: February 2022

İki sıralı tesis düzenleme problemi (İSTDP), esnek imalat sistemlerinde sıklıkla kullanılan bir yerleşim biçimidir. Bu tesis düzeninde bölümler veya makineler, taşıma araçlarının ve çalışanların kullanımı için ayrılmış olan bir koridorun iki kenarı boyunca sıralanırlar. Problem, tesis içerisindeki taşıma maliyetlerini minimize etmek amacıyla, makinelerin koridorun hangi tarafında yer alacağının ve bulundukları sıra üzerindeki kesin konumlarının belirlenmesini içermektedir. Bu çalışmada, farklı işlem rotalarına sahip çok ürünlü bir İSTDP üzerine odaklanılmıştır. Ele alınan problemde özdeş makinenin olmadığı ve özdeş makineye sahip senaryolar için yeni karma tam sayılı matematiksel modeller geliştirilmiştir. Geliştirilen modellerin etkinliği, rassal olarak üretilen test problemleri üzerinde değerlendirilmiştir. Küçük boyutlu problemler için optimal çözümler elde edilirken, büyük boyutlu problemler için belirlenen çözüm süresi sonunda bulunan çözüm değerleri raporlanmıştır.
Immunofluorescence on Formalin-Fixed Paraffin-Embedded Tissue Sections v1
Authors: Dobaczewska Katarzyna , Mikulski Zbigniew
Published: February 2022

Fluorescence staining of FFPE tissues that leads to consistent and quality results.
Multivariate and univariate real-time functional imaging (MURFI) user manual v1
Authors: C.C. Bauer Clemens , Jiahe Zhang not provided , Francesca Morfini not provided , Kucyi Aaron , Jovicarole Raya not provided , Zoi Urban not provided , Ghosh Satrajit , Oliver Hinds not provided , Randy Aurerbach not provided , David Pagliaccio not provided , Susan Whitfield-Gabrieli[Northeastern not provided
Published: February 2022

This manual describes the setup and use of multivariate and univariate real-time functional imaging (MURFI) software to deliver real-time functional magnetic resonance imaging neurofeedback (rt-fMRI-nf).
[RETRACTED] Lofi CBD Gummies - Reviews - SCAM ALERT! Don't Buy Until You Read This! v1
Authors: CBD Gummies Lofi
Published: February 2022

[RETRACTED]

LoFi CBD Gummies - Reviews - SCAM ALERT! Don't Buy Until You Read This!
[RETRACTED] Lofi CBD Gummies - Reviews - SCAM ALERT! Natural Pain Relief & Anxiety, Side Effects, Work & Buy? v1
Authors: CBD Gummies Lofi
Published: February 2022

[RETRACTED]

Lofi CBD Gummies - Reviews - SCAM ALERT! Natural Pain Relief & Anxiety, Side Effects, Work & Buy?
PCR with Q5® Polymerase (M0491) v2
Authors: England Biolabs New
Published: February 2022

This protocol describes methods for PCR using Q5® High-Fidelity DNA Polymerase (M0491).
Self-Regulated Learning Development: Students’ Perception to Explicit Instructional Support in Online Learning
Authors: Mallipa Imelda , Murianty Riana
Published: February 2022

Students’ ability to regulate their own learning is the key to learning in the twenty-first century, particularly in online learning environments during a pandemic situation. Studies have proved the significant contribution of Self-regulated learning (SRL) in academic success. This current study sought to understand and describe students’ perceptions and behavior in response to online teaching instructions designed in the light of SRL theories. The instructional support was designed following the principles of SRL from a social cognitive researcher. Twenty-five undergraduate students participated in this study. The data was obtained from questionnaires, tests, and observation. The learning activities were conducted in an E-learning platform provided by the university, google form, and virtual meeting. The results from the questionnaire showed that explicit instructional supports effectively encouraged students to employ SRL skills in their learning process. Albeit, the data from observation described that only some of the SRL skills were acquired and developed during online instructions and some skills still needed time to develop due to the fact that students were at the first level of SRL. The students in this study still need more exercises and practices to support them in continually developing their SRL skills. In future intervention, students should be trained to acquire self-assessment and task-selection skills. This study suggests providing explicit instructional support to assist university students with low level or minimal SRL capacity in developing SRL capacity.
The Importance of Nutritionists Role in Educating the Community Regarding the Implementation of a Healthy and Balanced Weight-Loss Diet
Authors: Novitasari Putri
Published: February 2022

Obesity is still one of the nutritional problems among Indonesians today. People then want to normalize their nutritional status by adopting certain weight-loss diets. The problem is, recently, some weight-loss diets that have emerged in the community are not following nutritional principles. People with less nutritional knowledge can implement this diet, which will endanger health. The role of nutritionists is very important in providing education to the public about how to carry out a healthy and nutritious weight-loss diet to normalize their nutritional status. This paper discuss the importance role of nutritionists in educating the public regarding the implementation of a healthy and balanced weight-loss diet in the middle of many mistaken types of current weight-loss diets in Indonesia. The study was descriptive and was conducted in Bandung, March 2021. Appropriate nutritional education is the key success to introduce the community to a healthy and balanced diet. Also, other factors determine such as the active role of other health stakeholders in carrying out activities to change attitudes and practices of public health and nutrition.
The Effect Of Moringa Leaf (Moringa Oleifera L.) Powder Substitution In Physicochemical And Organoleptic Characteristics Of Ice Cream
Authors: Anjani Rima , Zakaria Akhmad , Widowaty Windy
Published: February 2022

Protein and calcium are two nutrients that are essential to the human body. These nutrients can be acquired through the consumption of animal and vegetable foods. Moringa leaves are a protein and calcium-rich vegetable dietary product. The goal of this study is to investigate the physicochemical and organoleptic properties of ice cream products by the addition of Moringa leaf powder. This study used an experimental method with a one-factor total randomized design.  The addition of 0%, 3%, 6%, 9%, and 12% Moringa leaf powder treatment was carried out with 5 repetitions. The Kjeldahl method was used to analyse total protein content and Atomic Absorption Spectrophotometry was used to analyse the amount of Calcium in ice cream products. In this research, we tested the volume, mass, overrun, and melting time of ice cream, and so do the hedonic, and organoleptic characteristics. The results showed that calcium and protein levels of Moringa ice cream increased along with the addition of Moringa leaf powder. Ice cream with the addition of Moringa leaf powder by 12% had an average value of calcium and protein content higher compared to other ice cream samples. The addition of 9% Moringa leaf powder gave the best-overrun value of 47.86% which was determined based on the swelling power of the ice cream dough. Ice cream with 3% Moringa powder has the longest melting power of 12.82 minutes. organoleptic test results show that ice cream with 3% Moringa has the highest level of preference, with a total point of 527 for colour, 509 for aroma, 559 for taste, and 546 for texture. This study shows that Moringa leaves can be used as a substituent in ice cream.
Eating Habits of Carbohydrate and Protein Sources in Elementary School Children during the Pandemic
Authors: Santanu Ayu Mutiara , Insani Hurry Mega , Sentani Muchamad Rizki
Published: February 2022

Elementary school children are children aged 6-12 years and had eating habits depend on their social life at school. Feeding habit in children consisted of mother’s beliefs about feeding, child feeding practices, and children’s eating behavior. children who consumed unhealthy food, such as snacks, relatively experienced low energy or calorie, while children with high consumption of unhealthy food tended to have a significant effect on experiencing health problem. The purpose of this study is to describe the eating habits of elementary school students from carbohydrate and protein sources during the pandemic. This study is a correlational study using a cross-sectional design. The population in this study were elementary school students at Mutiara Elementary School, Garuda Village, Andir District with a total of 95 students as respondents. The data collection tool in this study used a questionnaire. Data were analyzed descriptively. Carbohydrate sources that are often consumed by students are rice (100%), noodles (56.8%) and bread (53.7%). Sources of animal protein that are often consumed are chicken meat (74.7%) and chicken eggs (94.7%). Meanwhile, the most consumed vegetable protein was tofu (81.1%) and tempeh (67.4%). The food consumed by school-age children is less diverse. It is important for schools to provide education about the provision of diverse foods.
The importance of assessing nucleotide polymorphisms of the tp53 signaling pathway genes in uterine infertility factor diagnosis
Authors: Putilo Anastasiya O. , Dzhibladze Tea A. , Pozdnyakova Nataliya V. , Grygortsevich Nataliya Yu. , Svidinskaya Evgeniya A. , Zuev Vladimir M. , Khokhlova Irina D.
Published: February 2022

INTRODUCTION: The WHO reported a 30% frequency of female infertility, which does not tend to decrease. Concurrently, the uterine factor occupies one of the most important places in infertility structure, reaching 50%. Improvement of assisted reproductive technology methods can successfully overcome many causes of infertility, but the possibilities of the method are limited in the uterine factor of infertility.
AIM: To assess the presence of nucleotide polymorphisms of the TP53 signaling pathway genes (LIF rs41281637, c.256GA; LIF rs929271, n.397-2854TG; MDM2 rs2279744, c.14+309TG; MDM4 rs1563828, c.558+572AG; TP53 rs1042522, c.215CG) in the endometrium in patients with primary and secondary infertility.
MATERIALS AND METHODS: In 20182021, the V.F. Snegirev Clinic of Obstetrics and Gynecology examined and treated 54 patients aged 26 to 48 years with primary or secondary infertility, including a genetic endometrial sample examination. The first group consisted of 28 patients with primary infertility aged 26 to 42 years. The 2nd group included 26 patients aged 29 to 48 years with secondary infertility.
RESULTS: The study evaluated the expression of nucleotide polymorphisms of the TP53 signaling pathway genes in patients with primary and secondary infertility. Study results, data were obtained indicating various variants of nucleotide polymorphisms LIF, MDM2, MDM4, and TP53 in primary and secondary infertility, as well as the identity of a marker, such as LIF rs41281637 (G/A) in patients of both groups.
CONCLUSION: The experimental data obtained indicate an important contribution of genetic polymorphisms in the genes of the TP53, LIF and MDM4 signaling pathway to the development of primary and MDM2 secondary infertility in women.
Applications of chitosan as a polymer carrier for increasing the drugs’ bioavailability
Authors: Ustinova Tatiana M. , Vengerovich Nikolai , Glinko Dmitriy  K.
Published: February 2022

Oral drug delivery is a dynamic research area, yet associated with multiple issues in its using: enzymatic degradation, hydrolysis, low permeability of intestinal epithelium. The review presents a research papers analysis on the development of targeted drug delivery using a biodegradable polymer chitosan. Chitosan application, singly or in composites, is suitable for various drug delivery systems. Upon oral delivery, chitosan serves as a mucoadhesive polymer with controlled and targeted release. During the last five years, various approaches to the delivery of insulin and other drugs had been reported in literature. The main technological strategy for insulin delivery was its protection against intestinal pH, as well as increasing of permeability via transcellular and/or paracellular pathways. It is observed that application of the biopolymer and its derivatives has a controlled absorption profile. In publications on the drugs delivery, most of the research is focused on development and modification of methods for their producing. According to the presented experimental data, there were obtained particles with well-defined spherical shapes and microparticles capacity of 85-97%. A number of research articles provide data on the chitosan application as a mucoadhesive coating for various nano- or microparticles. It was also noted that application of chitosan microparticles contributed to diminishing adverse side effects.
La Raison d’être des Propriétés D’opération D’addition à L’école Primaire : un Sujet Curriculaire Encore Controversé ?
Authors: Kaspary Danielly , Bittar Marilena , Chaachoua Hamid
Published: February 2022

RésuméLe curriculum prescrit d’une société change dans le temps pour des raisons diverses. Dans cet article, nous proposons de centrer notre attention au changement curriculaire concernant quatre propriétés d’addition (commutativité, associativité, élément neutre et clôture) à l’école primaire au Brésil. La période que nous analysons est limitée à la période 1990 - 2020. Des documents officiels sont examinés dans le but de nous apporter un regard prescripteur sur les conditions et contraintes qui doivent, selon l’État, soutenir l’étude de ce contenu à ce niveau scolaire. Dans un deuxième moment, nous proposons également d’analyser différentes versions d’une collection de manuels qui permettent d’illustrer l’évolution curriculaire au fil du temps. Des concepts de la théorie anthropologique du didactique et les notions d’objet et d’outil sous-tendent notre analyse sur la raison d’être de ces propriétés.
Mots-clés: Curriculum. Manuels. Outil/Objet. Noosphère. Champ additif. Praxéologie
AbstractA society's prescribed curriculum changes over time for a variety of reasons. In this article, we propose to focus our attention on the curricular change concerning four addition properties (commutativity, associativity, neutral element and closure) in primary school in Brazil. The period we are analyzing is limited from the 1990s to the present day, 2020. Official documents are examined in order to provide us with a more general view of the conditions and constraints that, according to the state, should support the study of this content at this school level. In a second moment, we also propose to analyze different versions of a collection of textbooks that illustrate curricular evolution over time. Concepts from the anthropological theory of didactics and the notions of object and tool underpin our analysis of the rationale behind these properties.
Keywords: Curriculum. Manuals. Tool/Object. Noosphere. Additive Field. Praxeology.
O Conhecimento Didático de Futuros Professores sobre as Ações Promotoras do Raciocínio Matemático
Authors: Rodrigues Margarida , Vieira William , Serrazina Lurdes
Published: February 2022

ResumoEste artigo é parte do Projeto Raciocínio Matemático e Formação de Professores (REASON) que tem como objetivo estudar o conhecimento matemático e didático que os professores precisam para conduzir uma prática que promova o raciocínio matemático dos alunos e estudar formas de apoiar o seu desenvolvimento. Mais especificamente, discutimos ações dos professores para promover os processos de raciocínio dos alunos, antes e após uma experiência de formação. Para isso, analisamos dados relativos a duas questões, incluídas na tarefa usada como pré-teste e pós-teste, que tratam das ações do professor para promover o raciocínio matemático nos alunos, aplicada numa turma de 1.º ano do Mestrado do 1.º Ciclo e 2.º Ciclo (Matemática e Ciências Naturais) do Ensino Básico. Realizamos uma análise de conteúdo das respostas de acordo com ações propostas na literatura, seguida de uma categorização das ações propostas pelos participantes para desenvolver os processos de raciocínio e uma classificação das ações que envolvem o desenvolvimento dos processos de generalizar e justificar. Observamos que a experiência de formação contribuiu para um maior conhecimento dos futuros professores sobre ações promotoras dos processos de raciocínio dos alunos e reveladoras de um melhor entendimento sobre ações docentes que desafiam a utilizar os processos de generalizar e justificar.
Palavras-chave: Raciocínio Matemático. Ações do Professor. Conhecimento Didático de Professores. Formação Inicial de Futuros Professores.
AbstractThis article is part of the Mathematical Reasoning and Teacher Education Project (REASON), which aims to study the mathematical and didactic knowledge that teachers need to conduct a practice that promotes students' mathematical reasoning and to study ways to support their development. More specifically, we discuss teachers' actions to promote students' reasoning processes, before and after a training experience. For this, we analyzed data related to two questions, included in the task used as pre-test and post-test, which deal with the teacher's actions to promote mathematical reasoning in students, applied in a 1st year of the Master of the 1st Cycle and 2nd Basic Education Cycle (Mathematics and Natural Sciences). We performed a content analysis of the responses according to actions proposed in the literature, followed by a categorization of the actions proposed by the participants to develop the reasoning processes and a classification of actions that involve the development of generalizing and justifying processes. We observed that the training experience contributed to a greater knowledge of future teachers about actions that promote students' reasoning processes and that they reveal a better understanding of teachers' actions that challenge them to use the processes of generalizing and justifying.
Keywords: Mathematical Reasoning. Teacher's Actions. Teachers' Didactic Knowledge. Initial Training for Future Teachers.
Identification of Lactic Acid Bacteria from Luwak (Paradoxurus hermaphroditus) Gastrointestinal Tract
Authors: Fitri Fitri
Published: February 2022

Luwak is a mammal that is widely cultivated to produce luwak coffee. Luwak coffee is a rare and one of the world's most expensive coffees from Indonesia. Numerous enzymes and microorganisms, many of which are lactic acid bacteria, contribute to the production of the coffee aroma. This research aims to identify lactic acid bacteria from luwak digestion accurately down to the species level. The parameters tested in this study were Gram staining, bacterial resistance to acid, bacterial resistance to bile salts, and genotypic identification of isolates using the 16S rRNA gene sequencing method. The results found that US1, FS3, FS4 and FS6 were identified as Leuconostoc pseudomesenteroides, US2 and US3 were identified as Lactobacillus plantarum, FS2 was identified as Weissella cibaria and FS5 was identified as Staphylococcus haemolyticus. All of these isolates were included in Gram-positive based on the results of Gram staining. However, among the 8 isolates obtained, one isolate, namely FS5 (S. haemolyticus), was not a lactic acid bacterium, but a pathogenic bacterium. This information can be used for the development of luwak origin bacteria for in vitro coffee fermentation purposes. © 2021 Friends Science Publishers
Volatile Organic Compounds of some Antagonists against Lasiodiplodia theobromae, a Pathogen of Coconut
Authors: Sudha Appusami
Published: February 2022

Biocontrol agents are the potential microbes and used for the control of aerial and soil-borne pathogens present in all crops. An attempt was made on identification, morphological and molecular characterization of Lasiodiplodia theobromae, a pathogen causing disease in nuts and leaves of coconut. A virulent isolate Lasiodiplodia theobromae L26 was selected based on the growth parameters and pycnidiospore production. Three efficient biocontrol agents (BCAs) namely Trichoderma asperellum, Bacillus subtilis and Streptomyces rochei, were selected for in vitro studies. Among these, T. asperellum showed a significantly higher percentage of inhibition (81%) in dual culture assay against L26. The inhibition was also confirmed in light microscopic observation, the mycelium of L26 was distorted, lysis of cell wall during the interaction. Volatile organic compounds (VOCs) emitted from BCAs inhibited the fungal growth of L26 by 59.61–47.03% in sealed plate method. Solid-phase microextraction GC-MS analysis revealed numerous new VOCs compounds emitted from the BCAs, whereas the dominant compound was identified as peptaibols, 2,4-di-tert-butylphenol, 2-piperidinone. The strength of peaks of these compounds augmented during the interaction of BCAs with L26, the peak intensity for terpenoids was the predominant class, followed by phenols and heterocyclic organic compound. Crude metabolite (75 μL) of each antagonist tested through agar well method against L26 and showed a complete inhibition. This study demonstrated the ability of BCAs to produce volatile and nonvolatile antifungal compounds, showing that there could a major mechanism involved in and that will be responsible for the successful inhibition of L26 under in vitro. In future combination of these three strains as commercial formulation may be a better management practices for leaf blight and malformation of nuts in coconut. © 2021 Friends Science Publishers
Modelización simulada en tiempo real de la evolución de un incendio mediante el Método Fast Marching
Authors: Bargueño Juárez Adrián , Garrido Luis Santiago , Moreno Luis
Published: February 2022

. Conseguir un modelo que pueda predecir la evolución de un incendio ha sido, y aún sigue siendo, un importante campo de investigación. Durante muchos años modelos físico-químicos, empíricos y mixtos han ido perfeccionándose y acercándose cada vez más a la evolución real de los incendios, a pesar de la complejidad de los factores implicados en el comportamiento del fuego. Pero desde hace unas décadas, se ha venido desarrollando modelos computacionales que permiten predecir la evolución de un incendio. El estudio que se presenta en este artículo, intenta modelizar la propagación de un incendio utilizando el método Fast Marching, el cual asemeja la evolución del incendio a la propagación de una onda, mediante la resolución de la ecuación Eikonal. Los primeros resultados que se han conseguido permiten presentar el modelo de forma visual mediante una Interfaz Gráfica de Usuario, en la cual se facilita la introducción de valores de variables como el viento y el tiempo, y en la que la modelización del incendio se presenta mediante gráficos que permiten su interpretación de forma intuitiva.
Control PID basado en eventos periódico para sistemas de control de red
Authors: Aranda-Escolástico Ernesto , Rodríguez Carlos , Ginaldo María , Guzmán José Luis , Dormido Sebastián
Published: February 2022

Este trabajo trata el control basado en eventos en sistemas en red. Se establece un formalismo de control basado en eventos periódico con controladores lineales como el PID a partir del teorema de Lyapunov-Krasovskii para sistemas muestreados. El formalismo permite garantizar la estabilidad asintótica del sistema dado un retardo máximo en la red. Para verificar la efectividad del sistema se ha utilizado el modelo de un reactor inestable con un controlador PI y se ha comparado con un esquema de control periódico.
Desarrollo de un módulo de comunicaciones para protocolo FINS-TCP sobre servidor OPC-UA
Authors: Blanes Noguera Francisco , Benlloch Faus Andrés
Published: February 2022

El presente trabajo aborda el diseño y desarrollo de un módulo Java de comunicaciones que implementa el protocolo de comunicaciones FINS-TCP, protocolo diseñado por la empresa OMRON para llevar a cabo comunicaciones con los PLC’s entre un equipo (computador) y un PLC, o entre varios PLC’s. Una vez diseñado el módulo de comunicaciones se llevara a cabo el despliegue del mismo sobre diferentes servidores OPC-UA (Open Platform Communications), con diferentes escenarios de uso. Los servidores OPC-UA utilizados para llevar a cabo el testeo del módulo son Ignition, de la empresa Inductive Automation, y Prosys OPC-UA Server, de la empresa Prosys LTD. Ambos basan su implementación en lenguaje de programación Java, lo que permite la portabilidad de los mismos a entornos muy diferentes. Una vez desarrollado llevamos a cabo el despliegue del mismo sobre un ordenador y sobre un sistema empotrado BeagleBone Black, de forma que se evaluara la viabilidad tanto en entornos potentes de servidor, como en sistemas con recursos limitados.
Estudio inicial de un vehículo autónomo marino de superficie
Authors: Puente Santiago T. , Torres Fernando , Candelas Francisco A. , Cano Carlos
Published: February 2022

Este artículo presenta un prototipo inicial de vehículo marino de superficie multicasco. El trabajo se centra en la descripción de los elementos que componen el vehículo, especialmente en los actuadores. Además, se describe el modelo cinemático del vehículo basado en n cascos con un cuerpo central. El diseño presentado utiliza una hélice independiente en cada uno de los cascos, lo que añade redundancia al diseño y permite una mayor maniobrabilidad y tolerancia ante fallos. Además, este trabajo se centra en el diseño de cada uno de los cascos, proporcionándole a cada uno un grado extra de libertad. Finalmente se presenta la construcción de los elementos del prototipo utilizando una impresora 3D así como los resultados de la simulación de trayectorias sencillas.
Un nuevo modelo para la conexión remota con hardware usando Javascript
Authors: Sáenz Jacobo , Esquembre Francisco , García Félix J. , de la Torre Luis , Sánchez José , Dormido Sebastián
Published: February 2022

En la actualidad los recursos accesibles a través de la web juegan un papel importante en la educación y el aprendizaje, gracias en parte a los avances tecnológicos de los ´últimos a Esta importancia es incluso mayor en ´áreas científicas y de ingeniería, principalmente en aquellas universidades a distancia, donde los laboratorios presenciales clásicos no son siempre posibles. Por esta razón, las prácticas presenciales de laboratorio han sido sustituidas o en ocasiones complementadas por laboratorios remotos y virtuales (LVR). Comúnmente, las aplicaciones a través de las cuales pueden llevarse a cabo estas prácticas han sido desarrolladas utilizando herramientas de alto nivel o entornos de desarrollo que utilizan en menos o mayor medida Java. Desafortunadamente, la diseminación de este tipo de aplicaciones se ha visto frenada durante los últimos años, debido a los nuevos problemas de seguridad relacionados con Java. Pero el avance en nuevas tecnologías también implica nuevos problemas, si tenemos en cuenta el creciente uso de dispositivos móviles y su imposibilidad para ejecutar aplicaciones Java. Este trabajo es un primer paso para obtener una nueva estructura de la herramienta Easy Java/Javascript Simulations (EjsS) para la conexión remota de dispositivos hardware utilizando Javascript. Para conseguir este objetivo, el primer paso es la solución de los problemas con las aplicaciones Java al utilizar EjsS. La solución propuesta ofrece una nueva arquitectura para reutilizar sus LVR usando un modelo, que se ejecutará en un servidor, y una interfaz gráfica de usuario que utiliza Javascript, funcionando en lado del cliente.
Energía osmótica: modelado y simulación de ósmosis por presión retardada
Authors: Salamanca Jacobo M. , Tadeo Fernando
Published: February 2022

En este trabajo se desarrollan modelos matemáticos y procedimientos de simulación para procesos de Ósmosis por Presión Retardada (PRO) empleando membranas planas. Los modelos publicados por la comunidad científica no consideran las desviaciones de las variables del proceso a lo largo de la membrana. La finalidad de este trabajo de modelado y simulación es reproducir de forma fidedigna el efecto de las principales variables y parámetros del proceso en el rendimiento global con vistas a su potencial control.
Docencia en informática industrial: lenguajes de programación
Authors: Mazaeda Rogelio , de la Fuente López Eusebio , González José L , Moya de la Torre Eduardo J.
Published: February 2022

En el presente artículo se discute la conveniencia de aplicar en la enseñanza de la asignatura de Informática Industrial del Grado en Electrónica Industrial y Automática de la Universidad de Valladolid, paradigmas de programación más abstractos a los que hasta ahora se venían utilizando. En este contexto se discuten las virtudes de la nueva versiones del estándar de C++v11 en lo que respecta a la programación concurrente, cuyo conocimiento es considerado un objetivo básico de la mencionada asignatura.
Combined effects of the farming methods and density on the survival rate, growth, yield, and economic efficiency of otter clam (Lutraria rhynchaena) in Van Don, Quang Ninh Province
Authors: Trieu Anh Tuan , Nguyen Xuan Viet , Thai Thanh Binh
Published: February 2022

This study was conducted to evaluate the effects of farming methods and density on the survival rate, growth, yeild and economic efficency of commercial otter clam in the sea waters of Van Don, Quang Ninh. The otter clams with an initial length of 18,36 mm and an average body weight of 4,12 g were used in this study. Two farming methods were arranged: cage culture (basket) hanging on the raft (including experiments TN1, TN2, TN3 and TN4) and cage culture placed on tidal flats (including experiments TN5, TN6, TN7 and TN8). For each culture, there were 4 formulas for stocking density of 25 individuals\cage (100 individuals\m2) (TN1, TN5), 35 individuals\cage (140 individuals\m2) (TN2, TN6); 45 individuals\cage (180 individuals\m2) (TN3, TN7); and 55 individuals\cage (220 individuals\m2) (TN4, TN8). Each treatment was triplicate and lasted for 12 months, the results showed that the density and farming methods had different effects on growth, survival rate and yield of commercial otter clam. The weight of the commercial otter clam ranged from 28,76 to 41,74 g\individual, the length varied from 51,17 to 72,69 mm\individual, and the survival rate fluctuated from 57,4 to 78,3%. The highest growth was recorded in the TN1 with density of 25 individuals\cage, the difference between treatments was statistically significant (p≤ 0.05). The average yield of commercial otter clam increased with the increase of stocking density, ranging from 21,7 to 38,3 tons\ha, the difference was statistically significant (p≤ 0,05). However, economic accounting showed that the economic efficiency was highest in TN2, the ottet clams were arranged in the cage hanging on rafts and stocking at a density of 35 individuals\cage (140 individuals\m2). In this experiment, the average growth in weight was 38,91 g\individual and in length was 68,47 mm\individual, the survival rate was 76,4%, and the yield was 32,9 tons\ha the economic profit reached 0,883 billion of Vietnam Dong and the profit rate reached 28,1, respectively. Based on these research results, it could be recommended to farmers to stock the otter clam with a density of 35 individuals\cage.
Vegetable structure in the Bay Sand Dune of Mui Ne, Phan Thiet city, Binh Thuan province
Authors: Truong Thi Hieu Thao , Ho Dac Thai Hoang , Le Thai Hung , Nguyen Thi Hong Lien
Published: February 2022

There were three vegetation types in blowing sand dunes of Mui Ne, Phan Thiet city, Binh Thuan province; native sand binding grasses type, mix species of native grasses and low shrub type and evergreen trees biome in coastal sand dune type. Group of dominant typical species were identified in each vegetation type in which three significant canopy layers were confirmed with evergreen trees biome in coastal sand dune type. The similarity among different vegetation types was evaluated, Sorenson’s index (S) showed that similarity of species in the vegetation types native sand binding grasses and mix species of natuve grasses and low shrub is 0.61, Shannon index (H’) for all three types is low but the highest come from evergreen trees biome in coastal sand dune type (H’ = 0.17 for trees and 0.06 for vines and shrub species. Results and lessons learned from this study are referred to conservation and ecological restoration activities.
Diversity of the Gastropoda in freshwater of the mainland in Thua Thien Hue
Authors: Bui Thi Chinh , Do Van Nhuong , Ngo Dac Chung
Published: February 2022

The survey and sampling were conducted in Thua Thien Hue Province from May 2018 to July 2020. A total of 20 species belonging to 16 genera, 8 families, of 2 subclasses (Caenogastropoda và Heterobranchia) was recorded. Three species (Filopaludina martensi, Gabbia fuchsiana, Parafossarulus manchouricus) were first records in Thua Thien Hue area, and two species (Sulcospira dakrongensis, S. tourannensis) are endemic in Vietnam. Viviparidae is the most abundant family (6 species). Other families have 1 to 3 species. The number of species is highest in ponds habitats, and lowest in streams habitats. The similarity index reached high value in three pairs of habitats including: ponds and rivers (SI = 0.77); fields and rivers (SI = 0.75); ponds and fields (SI = 0.72). Rarefaction curves revealed that the expected number of species in ponds and rivers habitats was richer than that in fields and streams habitats.
Study on the natural habitats of the giant water bug Lethocerus indicus (Lepeletier et Seville, 1775) (Hemiptera : Belostomatidae) contributing to sustainable management of this rare water insect named in the Red Data Book of Vietnam
Authors: Phommavongsa Sakkouna , Nguyen Phan Hoang Anh , Vu Quang Manh
Published: February 2022

The study was focused on the natural habitats and distribution of the giant water bug Lethocerus indicus in Lao PDR, with the aims to conserve and breed this rare water insect. The following conclusions were given: Adult giant water bugs were distributed in 5 main natural habitat types, including SC1. Habitat with flowing water such as rivers, streams and canals; SC2. Habitat type with standing or less flowing water such as ponds, lakes and lagoons; SC3. Habitat types such as water rice fields or aquatic plants; SC4. Habitat of standing water or puddles on the edge or inside the rice field; and SC5; and other Habitats include terrestrial, drifting with water, hiding in earthen caves near aquatic habitats. The number of adult giant water bugs decreased in the order of natural habitats studied, as follows SC3 >SC4 >SC2 >SC5 >SC1. The weter rice fields were the most suitable habitat for adult giant water bug. Research results showed that, there are similarities in the distribution of adult male and female in the studied natural habitats. The ratio of adult male to female giant water bug found in the above five studied natural habitats was 1.0 versus 2.3, respectively.
The limits of subkingdom Protozoa in unicellular Eukarya
Authors: Thai Tran Bai , Tran Thi Thanh Binh
Published: February 2022

According to the five-kingdom system, all unicellular eukaryotes are classified under the kingdom Protista, and multicellular eukaryotes contain only Animals, Plants, and Fungi. This classification is generally not accepted by zoologists. Many zoological textbooks still classify Animals into two large groups: Protozoa and Metazoa. However, the criterion for selecting Protozoa is the specific digestive system of heterotrophic nutrition for animals, thus, the range of Protozoa is often wide, includes many different, far related groups in unicellular eukaryotes. The entire eukaryotic phylogenetic tree (both unicellular and multicellular) built on molecular sequence comparisons of recent genetics indicates that only a few single-celled eukaryotic groups have phylogenetic relationship with the ancestor of multicellular eukaryotes in the animal kingdom. This situation forces a narrowing of the range of protozoan groups. According to principle (1) Kingdom taxa must include all groups of organisms that are monophyletic, i.e. have the same root in the phylogenetic tree of eukaryotes. This principle holds for all taxa above species. (2) Inheriting the traditional perception of considering Animals, Fungi and Plants (including unicellular and multicellular) as kingdom taxons. Protozoa includes 3 groups Choanoflagellata, Filasterea and Ichthyosporea. The article also updates the morphological, biological and taxonomic characteristics of these three groups.