bluuebunny/crossref_metadata_2025 huggingface dataset:
Social Emotional Health and Psychological Resilience in the Sample of Lithuanian School Teachers
Authors:   Vytautas Magnus University, Petrulytė Ala
Published: December 2022

Introduction. Teacher’s job is considered to be not attractive as it contains emotional strain and stress and schools in Lithuania face a shortage of teachers (TALIS, 2018; Merkys & Balčiūnas, 2019). Research on the social emotional health and resilience of teachers is important, especially in the face of the challenges of the Covid-19 pandemic. Research on social emotional health and resilience of Lithuanian teachers was conducted as part of the ERASMUS+ project ‘Supporting teachers to face the challenge of distance teaching’ (2020-1-LV01-KA226-SCH-094599). Methodology. The aim of this research was to assess the social emotional health and resilience of secondary school teachers in post-pandemic times. 400 respondents from Lithuania participated in the research. The results are based on data from the ‘Social and emotional health survey for teachers’ (SEHS-T) (Furlong.& Gajdasova, 2019) and the ‘Resilience scale’ (RS14) (Wagnild & Young, 1993; Wagnild, 2016). Results. Teachers reported a sufficiently high level of overall indicator of Social and Emotional Health (SEHS-T) as well as its domains: Belief-in-Self, Emotional Competence, Engaged Living. The level of teacher Resilience reached a moderate level. Significantly high positive correlations were established between teacher resilience and the overall social emotional index (rs = .585, p = .000), as well as between the resilience and social emotional domains: Engaged Living (rs = .560*, p = .000), Emotional Competence (rs = .448*, p = .000) and Belief-in-Self (rs = .515**, p = .000). The research did not find statistically significant differences by age, sex, or work experience. Conclusions. The teachers demonstrated a rather high level of social emotional health, a moderate level of resilience, and weak Belief-in-Others. It is recommended that teachers’ resilience is strengthened through interventional activities such as stress coping strategies, emotional awareness, and peer support skills training during the Covid-19 pandemic times.
Guía para el proceso de TFG de las licenciaturas de Ciencias Policiales
Authors: Brenes Paniagua Isabel , Jiménez Morales Karen , Badilla Quesada Mario , Herrera Sánchez Deiver
Published: December 2022

En este material interactivo se brinda la información administrativa e insumos metodológicos para realizar el proceso de Trabajo Final de Graduación (TFG) de las licenciaturas de Investigación Criminal y la de Administración Policial y Prevención del Delito del Plan de Estudios de la Carrera de Ciencias Policiales. Entre los contenidos que se podrán observar, están los siguientes: Líneas de investigación de la carrera, Modalidades para realizar el TFG, Antes del proceso de TFG, Durante del TFG, Posterior a realizar el TFG. Asimismo, se puede acceder a los formularios y los documentos utilizados en cada etapa del proceso. Ante este camino por recorrer, esperamos que este recurso sea una guía clara en su proceso de formación.
Física I
Authors: Pérez Porras William , Herrero Villarreal Diana , Maroto Alfaro Seidy , Badilla Barrientos Raquel , Herrera Sánchez Deiver
Published: December 2022

La presente guía de estudio acompañará al estudiantado de la asignatura Física I (teoría), de la Escuela de Ciencias Exactas y Naturales UNED. Aquí, se le sugiere cómo utilizar el libro de texto, se recomiendan varios materiales adicionales y se explica cómo resolver una serie de problemas. Asimismo, se le ofrecerán algunas ideas de cómo utilizar este material, con el objetivo de mejorar su rendimiento en esta materia. También, se le aconseja cómo lograr las experiencias de aprendizaje expuestas en el programa del curso. Con el fin de aprovechar mejor el tiempo, es conveniente que, al participar de las tutorías, haya estudiado cuidadosamente el material correspondiente y tenga definidas las dudas o asuntos por clarificar con la persona tutora. Las tutorías no sustituyen, sino que presuponen, el estudio atento de los materiales. Este multimedia está compuesto por seis módulos: Introducción, incluye consideraciones metodológicas; Física como ciencia: unidades, cantidades físicas y vectores; Movimiento a lo largo de una línea recta y en dos o tres dimensiones; Leyes de Newton; Energía y trabajo; y Cantidad de movimiento e impulso.
Baralho Genômico
Authors: Klautau Guimarães Nazaré , Lobo Segura Jorge , Maroto Alfaro Seidy , Godoy Cabrera Carolina , Delgado Vargas Juan Diego , Vázquez Pérez Yuri
Published: December 2022

O Baralho Genômico é um conjunto de cartas que possibilita a visualização das estruturas macro (cromossomos) e micro (sequência de nucleotídeos) do material genético, de forma integrada. Este material didático pode ser reproduzido facilmente por professores universitários ou do ensino médio e tem como objetivo principal promover a correlação entre os conceitos fundamentais de Genética, por meio da manipulação das cartas. Os temas que podem ser abordados com este baralho são os seguintes: 1. Estrutura do gene, combinação dos alelos em genótipos homozigotos e heterozigotos, identificação dos diferentes tipos de mutação e a relação com seus produtos. 2. Estrutura do cromossomo, posicionamento do centrômero, organização dos genes e posicionamento dos loci e dos alelos nos cromossomos homólogos e nas cromátides-irmãs. 3. Comportamento do material genético ao longo dos processos de meiose e mitose, representado por um par de cromossomos homólogos. 4. Processos envolvidos na produção da variabilidade genética, como a recombinação e a formação de gametas variáveis. Esta versão digital é um exemplo de como transformar métodos tradicionais de ensino em estratégias mais avançadas de aprendizagem, baseadas em Tecnologias de Informação e Comunicação. Como produto da colaboração entre a Universidade Estatal a Distância (UNED), da Costa Rica, a Universidade de Brasília, do Brasil e a Universidade da Costa Rica, foi elaborada uma versão digital do Baralho Genômico, onde a manipulação das cartas permite aos estudantes realizar diferentes atividades. Deve-se ressaltar que este projeto foi realizado com a cooperação interinstitucional entre a UNED, UnB e UCR, amparadas por convênios de cooperação internacional entre as instituições universitárias da Costa Rica e do Brasil. Essa nova versão do material inclui tanto a possibilidade de baixar do material físico para ser utilizado pelos professores em aula, quanto um sistema de exercícios online aberto ao público, no qual é necessário se inscrever.
Epistemología y conocimiento académico
Authors: Cartín Quesada Johnny , Prado Calderón Jorge , Alvarado Quesada Paúl , Badilla Barrientos Raquel , Ulate Paniagua Rommy Cristina , Castro Flores Sergio
Published: December 2022

Este recurso didáctico multimedia desarrolla el tema de la Epistemología enfocado en el planteamiento de una investigación y los aspectos por contemplar a la hora de su aplicación. El multimedia se basa en la lógica de un juego que se muestra en un ambiente espacial, por medio del cual se trabajan 4 ejes temáticos, donde cada uno se grafica como un asteroide, y el objetivo de la mediación pedagógica es que la persona participante vaya de asteroide en asteroide, en una misión asignada, desarrollando sus respectivos contenidos. Según el avance de la persona participante, así se desbloqueará el acceso a los demás asteroides, hasta que al final, la meta sea concluir todos los temas del material. Este recurso didáctico es de acceso programado y controlado, es decir, solo las personas que se inscriban en el curso de Epistemología y conocimiento académico dado por el Centro de Capacitación en Educación a Distancia (CECED) podrán acceder a sus contenidos y desarrollar la propuesta.
Química de remediación de aguas
Authors: Jiménez Gutiérrez Yamileth Milena , Hernández Chaverri Rodolfo Antonio , Alvarado Quesada Paúl , Delgado Vargas Juan Diego , Vázquez Pérez Yuri , Castro Flores Sergio
Published: December 2022

Este recurso didáctico multimedia desarrolla 4 aspectos sobre el tema de la química de remediación de aguas, en las que se profundiza, por medio de textos, imágenes y recursos audiovisuales, la comprensión de fenómenos relacionados con el agua y que en ocasiones no son tan fáciles de ver en su estado natural. El multimedia pretende de forma clara y concisa mostrar la realidad del agua desde muchos puntos de vista, para así dar aún mayor importancia a este recurso vital para la existencia del ser humano.
Enhanced Multimodal Biometric User Authentication based on Image Fusion
Authors: Madhumitha R. , Selvan Shirley
Published: December 2022

In today’s networked world, the necessity for highly secured frameworks
is increasing due to a surge in offences such as PC hacking,
unauthorised access to ATMs and mobile devices, and security breaches in
government institutions. Criminals exploit basic vulnerabilities in
existing security systems. In response to these security problems, a
biometric recognition framework is utilised to identify individuals
using distinctive and singular evidence. Individual biometrics cannot be
compromised as readily as a password. A multi-modal framework can
integrate any number of free biometrics, making any biometric system
significantly more effective than if it relied on a single biometric
user verification device. A approach of gradually converging biometric
modalities is included into combination techniques. This study describes
the integration of three biometric characteristics, namely iris, face,
and palm prints, at matching score level architecture employing weighted
sum of score technique and fingerprint identification based on minutiae
extraction approach.
Do Serbian high school students possess knowledge of basic chemical facts related to real life as a prerequisite for chemical literacy?
Authors: Stasevic Filip , Miletic Nasta , Djurdjevic-Nikolic Jelena , Gutman Ivan
Published: December 2022

For a long time, literacy has had a deeper meaning than just the ability of reading and writing. Chemical literacy, as a part of science literacy, represents the use of chemical knowledge and skills in solving real life problems. With the increasing influence that chemistry has on society, chemical literacy becomes one of the main goals of science education. In order to examine the knowledge of chemical facts related to real life (as a prerequisite for chemical literacy) of high school students (N = 379), we designed a knowledge test and constructed a scoring scale for evaluating achievements. The obtained results are contrary to expectations, i.e., a large number of students did not achieve a satisfactory level of knowing selected chemical facts chosen by the authors. The small number of correct answers per question indicates that the examined sample of students does not show a desirable level of chemical knowledge, implying that there is a need for new, improved strategies in chemistry teaching.
Reliability optimization using hybrid genetic and particle swarm optimization algorithm
Authors: Dahiya Tripti , Garg Deepika
Published: December 2022

Redundancy-allocation problem i.e. RAP is among the reliability optimization problems which make use of non-linear programming method to improve
the reliability of complex system. The objective of this research paper is
reliability optimization through the application of Genetic Algorithm i.e.
GA and Hybrid Genetic & Particle Swarm Optimization (H-GAPSO) on a RAP.
Certain shortcomings have been seen when results are obtained by application
of single algorithms. In order to get rid of these shortcomings, HGA-PSO is
introduced where attractive properties of GA and PSO are combined. This
hybrid method makes use of iterative process of GA after obtaining initial
best population from PSO. Comparative Analysis of results of GA and H-GAPSO
is done with respect to reliability and computation (CPU) time and it is
observed that H-GAPSO improved system reliability up to maximum by 63.10%.
MATLprogramming has been used for computation of results from GA and
HGA-PSO algorithms.
Association of Serum Uric Acid With All-Cause and Cardiovascular Mortality in Diabetes
Authors: Li Benchao , Chen Liangkai , Hu Xueting , Tan Ting , Yang Jiajia , Bao Wei , Rong Shuang
Published: December 2022

OBJECTIVE

To investigate whether serum uric acid (SUA) level is associated with all-cause and cardiovascular disease (CVD) mortality among individuals with diabetes.

RESEARCH DESIGN AND METHODS

In this prospective cohort study, we included patients with diabetes from the U.S. National Health and Nutritional Examination Survey (NHANES) 1999–2018. Mortality and underlying causes of death were ascertained by linkage to national death records through 31 December 2019. Weighted Cox proportional hazards regression models were used to evaluate hazard ratios (HRs) and 95% CIs for all-cause and CVD mortality. We also performed a meta-analysis of available cohort studies to combine the association between SUA level and mortality in diabetes.

RESULTS

Among the 7,101 patients with diabetes from NHANES 1999–2018, the weighted mean of SUA level was 5.7 mg/dL. During 57,926 person-years of follow-up, 1,900 deaths (n = 674 deaths from CVD) occurred. In the fully adjusted model, when compared with patients with diabetes in the lowest SUA quintile, those in the highest SUA quintile had the HRs (95% CIs) of 1.28 (1.03, 1.58) for all-cause mortality and 1.41 (1.03, 1.94) for CVD mortality. We included 13 cohort studies in the meta-analysis and found that the pooled HRs (95% CIs) were 1.08 (1.05, 1.11) for all-cause mortality and 1.05 (1.03, 1.06) for CVD mortality per 1 mg/dL increment of SUA level in patients with diabetes.

CONCLUSIONS

This study indicated that higher SUA levels were associated with increased risks of all-cause and CVD mortality in diabetes. Interventional studies are needed to elucidate the health effect of treatments to lower SUA levels.
Osteochondroses In Children’s Sports Practice – A Rare Case Of Van Neck–Odelberg Disease
Authors: Fonseca João P. , Figueiredo Pedro , Pinheiro João P.
Published: December 2022

Background: Osteochondroses are a set of conditions concerning the ossification of the developing bone. Higher intensity in sports activities can increase its occurrence in children. There is no consensus on its etiology, with multiple factors being involved. Van Neck–Odelberg disease is a rare osteochondrosis located in ischiopubic synchondrosis. Treatment is mainly conservative, with activity suspension. Addressing and correcting the predisposing factors is crucial to these injuries.Case report: We present a case of a 6-year-old futsal player who experienced mechanical inguinal moderate pain during sports practice. After performing physical examination, laboratory tests, and radiographic evaluation, the patient was diagnosed with Van Neck–Odelberg disease. Sports activities were suspended while a conservative treatment was performed, with subsequent follow-up over 3.5 years. No symptom recurrence was reported.Conclusion: Increased intensity of sports activities is associated with overuse injuries in children, especially before completing the ossification process. Preventive measures must remain the primary concern in children’s sports practice.
LAY ABSTRACTOsteochondroses are a group of disorders that affect normal bone growth. The cause for these disorders is not well understood, involving different factors. Osteochondroses can occur in children’s sports practice, affecting performance or even leading to its abandonment. Van Neck–Odelberg disease is one of these disorders that affects a temporary joint located in the inguinal area and that only exists during childhood. This paper presents a case and respective follow-up of a 6-year-old futsal player diagnosed with Van Neck–Odelberg disease. This paper also reviews the possible contributing factors, differential diagnoses, treatment options, and preventive measures.
Cytomegalovirus Infection in Organ Transplant Recipients: Diagnosis, Prevention and Treatment
Authors: N Singh
Published: December 2022

The most common infectious complication after first month of solid organ transplants is cytomegalovirus (CMV). Both direct such as viral syndrome, hepatitis, pneumonitis, colitis, etc. and indirect consequences such as rejection, infections by other microorganisms and graft dysfunction, are carried on by the virus. Latent infection, active infection, viral syndrome, and invasive disease are the four types of infection that can emerge due to transmission from the transplanted organ, reactivation of latent infection, or after a primary infection in seronegative individuals. Typically, this syndrome appears 30 to 90 days following transplantation. Several antiviral medications, including acyclovir, valacyclovir, ganciclovir, and valganciclovir, are being used for CMV prophylaxis and therapy. Furthermore, these antiviral medications are toxic and have serious adverse effects, including drug resistance, leukopenia, thrombocytopenia, renal failure, and neuropsychiatric symptoms. We attempted to discuss CMV risk factors, laboratory diagnosis, prevention, treatment and therapeutic in this review study with regard to organ transplantation.
Preconceito e prounistas
Authors: Ribeiro Flávia de Mendonça , Guzzo Raquel Souza Lobo
Published: December 2022

O artigo é parte do resultado de uma tese de doutorado e tem como objetivo identificar e analisar a presença do preconceito nos espaços acadêmicos onde o ProUni está presente, para, a partir da análise apresentada, defender a tese de que o ProUni, ao mesmo tempo em que busca reparar a ausência histórica da classe trabalhadora no Ensino Superior brasileiro, acaba por revelar as desigualdades sociais manifestas pelo preconceito nas vivências universitárias. Para o desenvolvimento de uma estrutura argumentativa que defenda a tese foi necessário um mapeamento e caracterização dos ProUnistas a partir de um questionário online, além de duas entrevistas em profundidade que aconteceram de forma individual. Sabe-se que o preconceito na sociedade existe, assim como nas Instituições de Ensino Superior privadas, porém não é dimensionado ainda como esse preconceito influencia a vivência do estudante durante sua graduação; para isso utilizamos o método quantitativo e a análise construtivo-interpretativa. Conclui-se que apesar do ProUni dar acesso à classe trabalhadora ao Ensino Superior, o preconceito vivenciado durante a graduação ainda é bastante velado, prejudicando o cotidiano desses estudantes, sendo uma fonte de sofrimento psíquico. Necessita-se de um trabalho profundo da psicologia no ensino superior para auxiliar as Instituições de Ensino Superior na integração desses estudantes na comunidade universitária, além de auxiliá-los no enfrentamento ao preconceito nas vivências universitárias.
Concepções de desenvolvimento infantil
Authors: Albano Ronaldo Matos , Salomão Nádia Maria Ribeiro
Published: December 2022

O presente estudo objetivou analisar as concepções de educadores de creches públicas acerca do desenvolvimento da criança na faixa etária de 24 a 35 meses de idade, considerando, a partir da perspectiva do desenvolvimento de Vygotsky, que o processo de constituição das concepções apresenta um caráter dinâmico na medida em que são influenciadas pelo contexto social, histórico e cultural do indivíduo. Foram realizadas entrevistas semiestruturadas com três educadoras de creches públicas da cidade de João Pessoa-PB. Os dados foram analisados a partir da técnica de análise de conteúdo temática. Os resultados revelaram que as concepções das educadoras sobre o desenvolvimento infantil são demonstradas a partir da caracterização que estas atribuem a esse processo, destacando que a etapa da educação infantil tem expressiva influência no desenvolvimento da criança, sobretudo nas seguintes dimensões: a educação infantil como base para etapas posteriores do desenvolvimento; a perspectiva do desenvolvimento infantil enquanto processo; e a aprendizagem da criança compreendida numa perspectiva para além do brincar e do cuidar. Tais concepções são expressas ainda pelos aspectos que estas consideram significativos no desenvolvimento da criança de 24-35 meses tais como: cognição, linguagem, interação social, motricidade e autonomia.
enfrentamento da violência na escola
Authors: Silva Junior Aldenor Batista da , Urt Sonia da Cunha
Published: December 2022

A escola e os sujeitos que fazem parte dela são decorrências de um longo e permeado processo de conflitos históricos e sociais, que implica várias contradições. Desta forma, a violência formada por processos sociais gerou frutos que chegaram até a escola e os tratos instalados em seu âmbito, demandando ao homem o confronto por meio de ações. O levantamento das produções científicas é de relevância para que se possa conhecer como determinada realidade concreta se manifesta, é analisada por diferentes olhares e permite continuidades no processo de produção do conhecimento. Este trabalho é resultado de um mapeamento dos trabalhos relacionados à violência na escola e seus enfrentamentos, encontrados na plataforma da Scientific Electronic Library Online (SCIELO) e no banco de teses e dissertações da Universidade de São Paulo – USP, entre os anos de 2003 e 2016, que foram categorizados em: pesquisas que abordassem a forma como a violência era enfrentada em escolas de macrorregiões e/ou locais. Evidenciou-se que poucos estudos, entre os selecionados, dedicaram-se a investigar o enfrentamento da violência somente com os relatos apresentados pelos coordenadores pedagógicos ou familiares. A maioria realizou pesquisas com todos os participantes da escola (gestores, professores, alunos e pais) ou diretores e coordenadores, ou somente com professores, ou somente com alunos. Foi constatado que somente o estudo de Freire e Aires (2012) aponta a presença do psicólogo nas práticas de enfrentamento da violência. Percebeu-se também a dificuldade que todos os trabalhos encontrados tiveram de conceituar o que seria enfrentamento da violência pela escola, visto que muitos se preocupam somente em conceituar a violência e acabam carecendo de conceituações que definam o que é enfrentamento no que diz respeito à violência e às possíveis maneiras de se manifestar na escola. Estavam presentes nos estudos enfrentamentos relacionados à advertência verbal e/ou escrita, livros de ocorrência, comunicação com pais ou responsáveis, aplicação e análise de círculos de cultura, mediação das situações de conflito por um professor mediador, programas de intervenção e educação em saúde, atuação democrática dos escolares, contato com Conselho Tutelar, Guarda Municipal e Promotoria Pública, dependendo da complexidade do caso, formação de profissionais educadores, estratégias de promoção de saúde, desenvolvimento socioeducativo, práticas de esporte e lazer, prevenção de doenças e prevenção de traumas. O Profissional que atua na interface com a Educação e se depara com a violência, mais do que identificar as características individuais dos atores escolares que contribuem para os problemas que acontecem na escola, deve criar espaços e se apropriar de referenciais para compreender os contextos, os determinantes sociais que colabora para o seu aparecimento e criar medidas de enfrentamento coletivas que garantem o desenvolvimento humano dos escolares.
Determination of the required volume of turn-accumulative lanes depending on the parameter of the residual transport queue
Authors:   Industrial University of Tyumen, Morozov G. N. , Morozov V. V. ,   Industrial University of Tyumen
Published: December 2022

The article is a continuation of the study of the road traffic organization at urban regulated intersections using the methods of channeling traffic flows. The authors consider the possibility of improving vehicular traffic at intersections on the basis of establishing the dependence of the capacity of turn lanes on the value of the residual traffic queue. The results of the experimental studies have established that the process of changing the length of turn lanes under the influence of the residual traffic queue is described by a linear model. The obtained mathematical model can be used to develop and adjust the modes of operation of urban regulated intersections.
Statistical analysis of the probability of road accident occurrence based on the data from intelligent transport systems of the Belgorod agglomeration
Authors:   Oryol State University named after I. S. Turgenev, Novikov A. N. , Kushchenko L. E. ,   Belgorod State Technological University named after V.G. Shukhov, Novopisny E. A. ,   Belgorod State Technological University named after V.G. Shukhov, Kambur A. S. ,   Belgorod State Technological University named after V.G. Shukhov
Published: December 2022

The use of intelligent transport systems enables obtaining reliable data on the parameters of the traffic flow, which facilitates determining the optimal model, algorithm, and the traffic management scheme. The article presents statistical data about accident rate based on the Poisson distribution, it also uses the Monte Carlo method to find the distribution function. The probabilities of accident occurrence hypotheses are based on Bayes formulas. The population of drivers is divided into four categories, depending on the propensity for accidents. The results obtained make it possible to determine the optimal requirements for the traffic algorithm in order to minimize traffic accidents and, in the future, achieve the “zero mortality” strategy.
Concept of the information and analytical platform in the road transport system of the megalopolis
Authors:   Leningrad Region State Committee of the Russian Federation «E-Government Operator», Pirogov Ya. Ye. , Evtyukov S. S. ,   Saint Petersburg State University of Architecture and Civil Engineering, Terentyev A. V. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: December 2022

The article defines the concept of building an information and analytical platform for managing freight transportation. The platform is based on the principles of synthesizing the methods for managing the structural dynamics of complex systems in the form of an analytical model that enables searching for compliance between the information situation and the solution. There have been formed principles of mathematical modeling of processes in the information and analytical platform. These principles include the following: implementation of an object-oriented approach in the formation of the information space of possible solutions and decomposition into subsystems and levels according to the principle of homogeneity of technology and heterogeneity of information conditions.
Method for calculating the strength, crack resistance and stiffness of reinforced concrete beams reinforced with steel fiber concrete based on a nonlinear deformation model
Authors:   Kazan State Power Engineering University, Radaikin O. V. , Sharafutdinov L. A. ,   Kazan State Power Engineering University
Published: December 2022

A promising way of strengthening reinforced concrete beams is using for these purposes a “shirt” made of steel fiber reinforced concrete. Firstly, in terms of the labor consumption, constructing of such “shirt” is comparable to the application of ordinary plaster, and, secondly, the observed increase in the bearing capacity of reinforced beams is quite comparable with the use of a steel clip. An analysis of the literature has shown that at the time of the publication preparation, that there exists no method for calculating such way of strengthening under consideration, there are no methods that would take into account the features of steel fiber concrete as a material, as well as the features of the joint operation of the “shirt” with the reinforced beam. In order to develop such a technique, the most appropriate thing, in our opinion, is using of the numerical diagram method, which is based on a discrete nonlinear deformation model. The authors have elaborated a detailed algorithm for calculating the strength, crack resistance and stiffness of reinforced concrete beams reinforced with steel fiber concrete using the considered method of strengthening beams along a normal section. The calculation results have been compared with our own experimental data and those of other authors. There has been found that the difference in the moment of destruction was 0.7 ... 16.5%, for the moment of cracking - 0.4 ... 19.6%, for the values of deflections - up to 19%, which indicates the efficiency of the proposed method and the possibility of its application for practical calculations.
Mud-bath wastewater treatment using coagulants
Authors:   South Ural State University, Arkanova I. A. , Ulrikh D. V. ,   South Ural State University, Markova E. A. ,   South Ural State University
Published: December 2022

The paper investigates the composition, characteristics and methods of treatment of mud-bath wastewater from suspended solids as the main quality indicator permitting the reuse of this wastewater. In order to improve the effectiveness of treatment, the authors studied the method of coagulation with the use of various dosages of coagulant produced in Russia. There were determined indicators of mud bath wastewater quality indicators before and after performing coagulation. Studies were carried out on full-scale wastewater from the mud bath clinic. Conclusions were made regarding the effectiveness of reducing such indicators as chromaticity and turbidity after coagulation. The optimal dosages of aluminum-based coagulating agents for effective treatment of wastewater from mud baths were determined. The results of this work are recommended for use in the development of methods to improve the technological system of cleaning of existing mud bath clinics and at designing new complexes of mud bath therapy.
Numerical simulation of aeration in a hot rolling workshop
Authors:   Magnitogorsk State Technical University, Starkova L. G. , Datsuk T. A. ,   Saint Petersburg State University of Architecture and Civil Engineering, Ulyasheva V. M. ,   Saint Petersburg State University of Architecture and Civil Engineering
Published: December 2022

The paper submits the results of numerical simulation of aeration processes in the hot rolling workshop of a metallurgical plant without taking into account the influence of wind. A comparison analysis of the results of numerical and full-scale experiments is presented. The results obtained can be used to develop energy-saving measures and improve the aeration in such workshops.
Testing the aerobic stability of silage-based mixed rations using a multiple indicator approach
Authors: Martens Siriwan , Jilg Annette , Schneider Mariana , Misthilger Barbara , Ohl Susanne , Steinhöfel Olaf
Published: December 2022

Total Mixed Rations (TMR) including silages are commonly fed to cattle in many parts of the world, but they tend to deteriorate on exposure to air, especially in the warm season. The aim of the study was to develop an easy to implement protocol in order to compare the aerobic stability of different feed mixtures for lactating dairy cattle and to test the potential of TMR stabilizing products to delay spoilage. The experimental conditions were standardized to 25 °C ambient, and the sample dry matter was adjusted to 400 g kg-1 to challenge shelf life. Temperature rise in an insulated vessel, which is frequently used when testing silages, was shown to be one promising indicator of spoilage activity. Furthermore, determination of pH, scores for visual occurrence of yeasts and moulds and condensation from 0–4 were successfully applied at the end of the 72 h period. A dosage of 4.5 l propionic acid t-1 proved suitable as a positive control when compared to 1.5 and 3.0 l t-1. The commercial products tested at the recommended dose had a similar efficacy. The stabilizing effect depended principally on the original hygienic condition of the ration. Visual evaluation plus the recording of pH, in addition to continuous temperature measurement facilitated this appraisal. Early signs of spoilage, in particular, can only be assessed by visual appraisal. Thus, an evaluation of a combination of indicators of aerobic stability is recommended.
Analisis Pergerakan Arus Lalu Lintas di dalam Kawasan Kampus Universitas Negeri Padang
Authors: Oktaviani Oktaviani , Zalmiarty Khairunisa Try
Published: December 2022

Universitas Negeri Padang (UNP) adalah salah satu perguruan tinggi negeri di kota Padang yang dalam beberapa tahun ini mengalami perkembangan yang cukup pesat. Hal ini juga secara tidak langsung akan menyebabkan meningkatnya penggunaan kendaraan pribadi oleh sivitas akademika dan pengguna lain yang beraktivitas di dalam kawasan kampus UNP. Diperlukan analisis dan solusi agar transportasi yang terjadi di UNP berjalan dengan lancar, aman dan nyaman. Penelitian ini menganalisis kinerja simpang dan ruas jalan di masa sekarang dan meramalkan kinerja simpang dan kinerja ruas jalan masa 5 tahun mendatang dengan memberikan solusi alternatif untuk memperbaiki permasalahan yang mungkin akan terjadi. Parameter yang digunakan untuk menjadi acuan pertumbuhan volume lalu lintas adalah pertumbuhan dari kenaikan jumlah mahasiswa, dosen, maupun karyawan UNP tiap tahunnya diperoleh sebesar 20%. Pengolahan data yang dilakukan mengacu kepada aturan MKJI 1997. Kinerja simpang jalan eksisting pada 5 tahun mendatang di kawasan UNP yaitu Derajat Kejenuhan 1,15 yang terbesar dan Derajat Kejenuhan terkecil 0,50. Diperoleh tundaan pada simpang yang terbesar yaitu 31,68 detik dan yang terkecil tundaan sebesar 8,55 detik. Sedangkan kinerja ruas jalan diperoleh Derajat Kejenuhan terbesar yaitu 0,70 dan terkecil 0,25. Menimbang kinerja jalan yang akan terjadi 5 tahun mendatang, maka perlu adanya solusi perbaikan simpang ataupun ruas, baik perubahan manajemen lalu lintas maupun perbaikan geometrik jalan. Serangkaian alternatif yang dapat diterapkan untuk meningkatkan kinerja simpang yaitu pengalihan arus lalu lintas (jalan satu arah), memperbaiki geometrik jalan, dan pengaturan ulang manajemen lalu lintas
Pengembangan Media Pembelajaran PowerPoint-iSpring Terintegrasi Pertanyaan Prompting Pada Materi Sifat Keperiodikan Unsur Kelas X SMA/MA
Authors: Hadilka Meilia Larasani , Guspatni Guspatni
Published: December 2022

Salah satu hal yang paling berpengaruh dalam proses pembelajaran adalah media pembelajaran. Media pembelajaran akan menumbuhkan keinginan belajar siswa, membantu siswa dalam mengingat materi pembelajaran, dan membuat siswa aktif dalam proses pembelajaran. Penelitian ini bertujuan untuk mengembangkan media pembelajaran PowerPoint-iSpring pada materi sifat keperiodikan unsur kelas X SMA/MA untuk membantu memahami konsep dengan bantuan pertanyaan prompting. Jenis penelitian yang digunakan adalah Research and Development (R&D) dengan menggunakan model 4-D yang terdiri dari empat tahap yaitu tahap Define, Design, Develop, dan Disseminate (tidak dilakukan). Instrument penelitian berupa lembar validasi konstruk dan lembar validasi konten. Hasil analisis lembar validitas konstruk menunjukkan skor rata-rata momen kappa (k) yaitu 0.91. Hasil analisis lembar validitas konten menggunakan Lawshe’s CVR dengan indeks validitas konten (CVI) yaitu 1. Data yang diperoleh menunjukkan bahwa media pembelajaran PowerPoint-iSpring terintegrasi pertanyaan prompting pada materi sifat keperiodikan unsur sudahv valid.
Pengembangan Media Pembelajaran PowerPoint-iSpring Terintegrasi Pertanyaan Prompting pada Materi Hidrokarbon Kelas XI SMA
Authors: Yusfa Hafizah Alfatan , Guspatni Guspatni
Published: December 2022

ABSTRACTInteractive learning media are able to make students active and increase learning independence so that they can support the demands of the 2013 curriculum in the learning process. The purpose of this study was to develop an integrated PowerPoint-iSpring learning media for prompting questions on hydrocarbon material. The Plomp model is the research model selected for development research, but the research stage is limited to the prototype III stage, that is expert review and one to one evaluation. The media assessment was assessed by five material expert validators who assessed the validation of media content and constructs, and three media expert validators who assessed media technicalities. The data collection instruments consisted of interview guide sheets, content validation questionnaires, constructs and media experts. The results of the assessment of each questionnaire were analyzed using the Aikens'V formula. The value of V on content, construct and media technical validation is 0.93 respectively; 0.93; 0.94 so that it can be concluded that the PowerPoint-iSpring learning media integrated prompting questions on hydrocarbon materials that have been developed is valid.Keywords:PowerPoint-iSpring, Prompting Question, Hydrocarbon, PlompABSTRAKMedia pembelajaran interaktif mampu membuat siswa aktif dan meningkatkan kemandirian belajar sehingga dapat mendukung tuntutan kurikulum 2013 pada proses pembelajaran. Tujuan penelitian ini untuk mengembangkan media pembelajaran PowerPoint-iSpring terintegrasi pertanyaan prompting pada materi hidrokarbon. Model Plomp merupakan model penelitian yang dipilih pada penelitian pengembangannamun tahapan penelitian dibatasi sampai tahapprototype III yakni penilaian expert review dan one to one evaluation. Penilaian pada media dinilai oleh lima validator ahli materi yang menilai validasi konten dan konstruk media, serta tiga validator ahli media yang menilai teknis media. Instumen pengumpulan data terdiri dari lembar pedoman wawancara, angket validasi konten, konstruk dan ahli media.Hasil penilaian terhadap masing-masing angket dianalisis dengan formula AikensV.Diperolehnilai V pada validasi konten, konstruk dan teknis media secara berturut turut sebesar 0.93; 0.93; 0.94sehingga dapat disimpulkan media pembelajaran PowerPoint-iSpring terintegrasi pertanyaan prompting pada materi hidrokarbon yang telah dikembangkan valid.Kata Kunci:PowerPoint-iSpring, Pertanyaan Prompting, Hidrokarbon, Plomp
Validitas Media Pembelajaran PowerPoint-iSpring Terintegrasi Pertanyaan Prompting pada Materi Sel Volta Kelas XII SMA/MA
Authors: Putri Ulfah Wahidah , Guspatni Guspatni
Published: December 2022

ABSTRACTIn the 2013 curriculum, students are active, especially in finding concepts in the learning process. In addition, in the learning process, students are expected to be competent in using and utilizing Information and Communication Technology (ICT) as a medium in learning to improve the quality of learning.This study aims to develop PowerPoint-iSpring learning media on voltaic cell material for class XII SMA/MA. This research used ti determine the level of validity of the learning media that has been made. This develop media is integrated with question prompting that can help student find concepts. The type of research used is the development research using the Plomp model which concists of three stages: preliminary stage, prototyping stage, and assessment phase (this research was carried out until prototyping III stage). This learning media was validated by chemistry lectures, engineering lectures of FMIPA UNP and chemistry teachers at SMAN 4 Padang using instruments in the form of validation sheets. The results of the assessment on content validation, constructs, and media experts were processed using the Aiken's V formula with an average V value of 0.93; 0.94; 0.92 so it can be concluded that the learning media that has been developed is valid.Keywords: PowerPoint-iSpring, Prompting Question, Voltaic Cell, PlompABSTRAKPada kurikulum 2013 peserta didik dituntut aktif terutama dalam menemukan konsep dalam proses pembelajaran. selain itu, pada proses pembelajaran peserta didik diharapkan kompeten dalam menggunakan dan memanfaatkan Teknologi Informasi dan Komunikasi (TIK) sebagai media dalam pembelajaran untuk dapat meningkatkan kualitas pembelajaran. Penelitian ini bertujuan untuk mengembangkan media pembelajaran PowerPoint-iSpring pada materi sel volta kelas XII SMA/MA. Penelitian ini digunakan untuk menentukan tingkat validitas media pembelajaran yang telah dibuat. Media yang dikembangakan ini terintegrasi dengan pertanyaan prompting yang dapat membantu siswa dalam menemukan konsep. Jenis penelitian yang digunakan adalah Penelitian pengembangan (Development Research) dengan menggunakan model Plomp yang terdiri dari tiga tahapan yaitu tahap penelitan pendahuluan (preliminary research), tahap prototipe (prototyping stage), dan tahap penilaian (assesement phase) (penelitian ini dilakukan sampai tahap prototipe III). Media pembelajaran ini divalidasi oleh dosen kimia FMIPA UNP, dosen FT UNP dan guru kimia SMAN 4 Padang dengan menggunakan instrumen berupa lembar validasi. Hasil penilaian terhadap validasi konten, konstuk, dan ahli media diolah menggunakan formula Aikens V dengan rata-rata nilai V secara berturut sebesar 0.93; 0.94; 0.92 sehingga dapat disimpulkan media pembelajaran yang telah dikembangkan valid.Kata Kunci: PowerPoint-iSpring, Pertanyaan Prompting, Sel Volta, Plomp
Development of Interactive PowerPoint Leraning Media Based on Guided Inquiri on Acid-Base Topic for Class XI SMA/MA
Authors: Chania Romy , Aini Syamsi
Published: December 2022

ABSTRACT

This study aims to develop interactive PowerPoint learning media based on guided inquiry on the acid-base topic and reveal the validity and practicality of the developed media. This research belongs to the type of research and development with 4-D development model (define, design, develop, disseminate). Limited to the develop stage. The instrument of this research is a questionnaire of validity test and practicality test. The subjects of the validity test of this interactive PowerPoint learning media were two chemistry department lecturers and three SMA chemistry teachers. The practicality test subjects of this interactive PowerPoint learning media were three SMA  chemistry teachers and sixteen SMAN 1 Batang Kapas students. The data from the validity and practicality tests were analyzed using the Aiken's V formula and descriptive analysis methods. Based on the results of the analysis of the validity test data obtained a score of 0.87 with a valid category. And the results of the analysis of the practicality test data on teachers obtained a value of 90% and for students of 95.4% with a very high practicality category.

Keywords:PowerPoint, Guided Inquiry, Acid-Base
Development of Petroleum E-Module Based on Scientific Approach for Senior High School Grade XI
Authors: Ihsan Emira Eldina , Hardeli Hardeli
Published: December 2022

ABSTRACT

The subject matter of petroleum at school is still difficult for students to be understand because of the length of the material description, many concepts using foreign terms, and the visualization of petroleum material in the teaching materials has not attracted enough attention. One way to obtain teaching materials that can increase students' motivation and understanding is to develop e-module teaching materials. E-modules also allow students to learn independently. The e-module was developed using a scientific approach as suggested in the 2013 curriculum. This study aims to develop a valid e-module. The type of research conducted is Educational Design Research. The e-module was developed using the Plomp development model which consists of three main steps, preliminary research stage, prototype stage and assessment phase. This research is limited to the validation stage. Validation was carried out by 5 validators, by three chemistry lecturers at FMIPA UNP and two chemistry teachers. The validation results are calculated using Aiken’s V statistics. From the results of data processing, it is found that the petroleum e-module based on the scientific approach developed is valid with value 0.83.

Keywords: Educational Design Research, Independent Learning, Petroleum, Scientific Approach
Description of Critical Thinking Ability at XI IPA 1 Grade of SMAN 7 Padang in Solving Chemistry Problems on Reaction Rate Material
Authors: Putri Wella Aulia , DJ Latisma
Published: December 2022

During learning process students tend to be passive and memorize with teacher’s explanations. This causes students’ critical thinking skills in finding solutions problems that do not develop optimally. Qualitative descriptive research aims to describe students’ critical thinking at XI IPA 1 grade of SMAN 7 Padang skills in solving chemistry problems on reaction rate material. The research sampling technique used purposive sampling in the XI IPA 1 grade with 38 students. The research data will be analyzed using the qualitative analysis technique of the Miles and Huberman (1984) model consists of data reduction, data display and verification. The research instruments are problem test with 5 questions referring to critical thinking indicators by Ennis (1996) including elementary clarification, basic support, inference, advanced clarification, strategies tactics and interviewing selected students. The results showed that RF subjects of students with high critical thinking skills 4 critical thinking indicators, such as elementary clarification, inference, advanced clarification, strategy and tactics. AM subjects with medium critical thinking skills fulfill 3 critical thinking indicators, elementary clarification, basic support, and inference. While the subject of AZ students with low critical thinking skills only fulfills 2 critical thinking indicators, constist of advanced clarification ,strategy and tactics.
Efektivitas Model Pembelajaran Kooperatif Tipe Group Investigation Materi Ekosistem Pada Motivasi Belajar Siswa
Authors: Taek Yustina , Sila Vinsensia Ulia Rita , Masing Feliksitas Angel
Published: December 2022

This research aims to determine the effect of the learning model cooperative type group investigation on students' learning motivation on ecosystem material at SMPN Kiupunu. This study is an experimental study and the design in this study is Non-Randomized Post-Test Only Control Group Design. The population in this study was all students of class VII SMPN Kiupunu totaling 36 students and the samples were taken from class VII A and class VII B, each each class is 18. The sampling technique is purposive sampling. The data collection method used is a motivational questionnaire. Based on data from research conducted at SMPN Kiupunu, it shows that there is an effect of applying the group investigation model on the learning motivation of class VII students. This is evidenced by the value of the significance level on the T-test of 0.000. This is where Ho is rejected and Ha is accepted or there is an effect of the application of the group investigation cooperative learning model on the learning motivation of class VII students.
An Analysis on The Concept Comprehension Skill Through the Two-Tier Multiple Choice in Online Assessment
Authors: Pantiwati Yuni , Prihanta Wahyu , Nurrohman Endrik
Published: December 2022

The corona virus outbreak has an impact on learning activities. Indonesia establishes online or online learning so that learning activities continue and are safe. Assessment and evaluation must continue to be carried out. One way of assessing authenticity can be using Two Tier Multiple Choice (TTMC).  This study aimed to analyze the ability to understand the concept of Biology education students through Two-Tier Multiple Choice in online assessment. This type of research is descriptive qualitative. The research was conducted for one semester. The research subjects were semester 3 students who program and attend lectures on Media and Learning Resources at the Biology Education Study Program, FKIP-UMM. The academic year 2020/2021. The number of students is 85 people. The sampling technique used is the saturation sampling. The data were collected utilizing a multiple-choice test in the form of TTMC. Aspects that are measured include aspects of understanding and analyzing. The qualitative descriptive analysis was conducted to classify the data collection. The result showed that 37.6% of students entered the criteria for learning outcomes under the minimum standard mastery (MSM), 31.7% were according to the MSM standards, and 30.6% were in the criteria above the MSM. In the aspect of understanding (C2), 63.5% of students can answer questions correctly, and 36.5% of students have not answered correctly, in the aspect of analyzing (C4), as many as 41.4% of students can answer questions correctly and 58.6% of students not correct in answering the questions of the total evaluated student population.