bluuebunny/crossref_metadata_2025 huggingface dataset:
Social Media Use Purposes of Children and The Impact of Their Self-Directed Learning with Technology on Health Literacy
Authors: AYAR Dıjle , BEKTAŞ İlknur , AKDENİZ KUDUBEŞ Aslı , BEKTAŞ Murat
Published: October 2021

Background: Health literacy is described as a means to obtain new information and reach more positive attitudes, more competence, positive health behaviors and better health outcomes. Social media use and self-directed learning with technology affecting health literacy of children. Objectives: This study is to examine the effect of social media and their self-directed learning with technology on health literacy. Methods: The study was conducted with a total of 507 students from two secondary schools located in Turkey's Aegean region. Descriptive Information Form”, “Social Media Purpose Use Scale”, “Self-Directed Learning with Technology Scale” and “Health Literacy Scale for School-Aged Children” were used as data collection tools. Results: Result of the regression analysis showed, there was a positive moderate significant correlation between the mean total scores of the purpose of social media use (β =.60, p <.001) and health literacy there was a positive moderate significant correlation between self-directed learning with technology (β =.58, p <.001) and health literacy. The health literacy of the students was mostly affected from the mean total scores of the purpose of social media use and the self-directed learning with technology, respectively. It was found that 46% (F = 215.872, p < .001) of the factors affecting the health literacy in the overall model could be accounted by the purpose of social media use and self-directed learning with technology. Conclusion: It is reported that there is a positive significant correlation between health literacy of the children and the purposes of social media use and self-directed learning with technology.
Los Juegos Paralímpicos como propulsor de los Objetivos de Desarrollo Sostenible
Authors: Dantas Karollyni Bastos Andrade , Oliveira Cristiane Costa da Cunha de , Souza Divaldo Martins de , Lima Júnior Cássio Murilo Almeida , Costa Frederico Barros , Carvalho Paula Esteves , Dantas Estélio Henrique Martin
Published: October 2021

La inclusión de personas con discapacidad es una preocupación constante para educadores, profesionales de la salud y entidades nacionales e internacionales. Una de las formas más efectivas de lograr este objetivo es por medio del deporte Paralímpico. Este estudio tiene como objetivo rastrear la evolución histórica del deporte y las competiciones paralímpicas, con especial atención al papel crucial realizado por los Juegos Paralímpicos, estableciendo la relación de cómo los Juegos Paralímpicos se establecen en los eventos deportivos que impulsan los Objetivos de Desarrollo Sostenible. Se abordará la preocupación de la Organización de las Naciones Unidas con los caminos evolutivos de la sociedad humana, materializada en los Objetivos de Desarrollo Sostenible (ODS), establecidos por la Agenda 2030. En el documento se señalan 17 ODS y 169 metas, agrupadas en tres diferentes puntos focales: personal, ecológico y espiritual, establecidos para erradicar la pobreza y promover una vida digna para todos, dentro de los límites del planeta. Al comparar los ideales Paralímpicos con los ODS, existe una interfaz coherente en los ODS: 3) Salud y bienestar; 4) Garantizar una educación inclusiva y equitativa de calidad y promover oportunidades de aprendizaje al largo de la vida para todos; 5) Igualdad de género; 11) Comunidades y ciudades sostenibles; 16) Paz, justicia e instituciones eficaces.
Cognitive Development and Non-Aerobic Physical Fitness in Preschoolers: a Longitudinal Study
Authors: Aguiar Daniel Kreuger de , Tymms Peter B. , Koslinski Mariane Campelo , Araújo Claudio Gil Soares de , Bartholo Tiago Lisboa
Published: October 2021

Introduction: Early childhood is the most critical period of healthy motor and cognitive development in human life and increased physical activity may provide health benefits across childhood and adolescence. Objective: The aim of this study was to quantify the relationship between non-aerobic physical fitness and cognitive development in preschool children. Methods: Participants included children from a longitudinal study in the city of Rio de Janeiro, Brazil (N=1380, first year; N=1320, second year). Non-aerobic physical fitness was assessed with the Sitting-Rising Test (SRT) and cognitive development with the Performance Indicators for Primary Schools (PIPS). Results: Non-aerobic physical fitness and cognitive development (0.25 for language and 0.17 mathematics, p<0.05) were positively correlated. The hierarchical linear regression models revealed that baseline measurements of non-aerobic physical fitness presented a small but significant association with prospective mathematic performance but not language after controlling for confounder variables (ES=0.16 for mathematics first year; ES=0.11 for mathematics second year). Conclusions: These results suggest an association between non-aerobic physical fitness and children's cognitive development in early school years.
Análisis de las relaciones de los procesos logísticos de un grupo de micro, pequeñas y medianas empresas manufactureras colombianas
Authors: Márquez Gutiérrez Mateo , Carmona González Guillermo León , Castro Zuluaga Carlos Alberto
Published: October 2021

El presente artículo tiene como propósito explorar la relación que existe entre un grupo de procesos logísticos importantes de micro, pequeñas y medianas empresas (Mipymes) manufactureras colombianas. A través de un número reducido de factores se simplifica la visión de los análisis realizados a este tipo de empresas tanto desde la práctica como desde la literatura. Para ello se utiliza una metodología basada en análisis estadísticos multivariados. El uso de análisis de elementos permite tener una visión general y descriptiva de los procesos logísticos empresariales. El análisis factorial exploratorio, por su parte, permite obtener un conjunto de factores que explican mejor los procesos, mientras un análisis factorial confirmatorio permite corroborar la validez de dichos factores en una muestra de Mipymes.
Los principales hallazgos consideran cuatro factores principales que mejor representan y relacionan los procesos logísticos y de impacto logístico considerados para las Mipymes con un alto nivel de validez estadístico. Esta investigación considera un número limitado de empresas manufactureras y asume que los procesos que se tomaron en cuenta representan la logística de una empresa, de acuerdo con la literatura. Finalmente, se presenta la simplificación, mediante análisis estadísticos, de los problemas logísticos de Mipymes manufactureras en mercados emergentes como la principal aportación del presente artículo.
Зарождение идеи антиколониального сопротивления в произведении Семена Дивовича «Разговоръ Великороссіи съ Малороссіею»
Authors: Величковская Юлия
Published: October 2021

The article deals with the significance of the work of Semen Divovich's “The Conversation of Great Russia with Little Russia” in the formation of anti-colonial resistance in national literature.
Finite size scaling in the heterogeneous reaction 2A + B2 → 2AB
Authors:   Universidad del Centro Educativo Latinoamericano, Rosario, Rep´ublica Argentina, Hernandez Guiance Sabrina , Coria Daniel , Irurzun Isabel
Published: October 2021

In the present paper we extend the exact solution previously obtained for the heterogeneous catalytic reaction 2A + B2 → 2AB on small domains, to arbitrary lattice sizes () and calculate the average number of reactive steps necessary to poison the lattice first, . We determine as a function of through Monte Carlo simulations previously contrasted with the exact solution in lattices. We show that follows a power law with , without appreciable transient behaviors, and a scale factor () dependent on the two parameters of the model, the sticking coefficient probability and the desorption probability . The dependence of on both and is determined.
Independent, Incidence Independent and Weakly Reversible Decompositions of Chemical Reaction Networks
Authors:   University of the Philippines Diliman, Philippines, Hernandez Bryan , Amistas Deza , De la Cruz Ralph John , Fontanil Lauro , de los Reyes Aurelio , Mendoza Eduardo
Published: October 2021

Chemical reaction networks (CRNs) are directed graphs with reactant or product complexes as vertices, and reactions as arcs. A CRN is weakly reversible if each of its connected components is strongly connected. Weakly reversible networks can be considered as the most important class of reaction networks. Now, the stoichiometric subspace of a network is the linear span of the reaction vectors (i.e., difference between the product and the reactant complexes). A decomposition of a CRN is independent (incidence independent) if the direct sum of the stoichiometric subspaces (incidence maps) of the subnetworks equals the stoichiometric subspace (incidence map) of the whole network. Decompositions can be used to study relationships between positive steady states of the whole system (induced from partitioning the reaction set of the underlying network) and those of its subsystems. In this work, we revisit our novel method of finding independent decomposition, and use it to expand applicability on (vector) components of steady states. We also explore CRNs with embedded deficiency zero independent subnetworks. In addition, we establish a method for finding incidence independent decomposition of a CRN. We determine all the forms of independent and incidence independent decompositions of a network, and provide the number of such decompositions. Lastly, for weakly reversible networks, we determine that incidence independence is a sufficient condition for weak reversibility of a decomposition, and we identify subclasses of weakly reversible networks where any independent decomposition is weakly reversible.
Bifurcation dynamics in a fractional-order oregonator model including time delay
Authors:   Guizhou University of Finance and Economics, China, Xu Changjin , Zhang Wei , Aouiti Chaouki , Liu Zixin , Li Peiluan , Yao Lingyun
Published: October 2021

Setting up mathematical models to describe the interaction of chemical variables has been a hot issue in chemical and mathematical areas. Nevertheless, many mathematical models are only involved with the integer-order differential equation case. The fruits on fractional-order chemical models are very scarce. In this present work, on the basis of the previous studies, we set up a novel fractional-order delayed Oregonator model. Selecting the time delay as bifurcation parameter, we obtain novel delay-independent bifurcation conditions that guarantee the stability and the appearance of Hopf bifurcation for the fractional-order delayed Oregonator model. The study shows that time delay plays a vital role in controlling the stability and the appearance of Hopf bifurcation of the considered fractional-order delayed Oregonator model. In order to verify the rationality of theoretical results, computer simulations are carried out.
Bifurcation analysis of a discrete-time four-dimensional cubic autocatalator chemical reaction model with coupling through uncatalysed reactant
Authors:   Quaid-I-Azam University Islamabad, Pakistan, Khan Muhammad Salman
Published: October 2021

In this manuscript, we discuss a four-dimensional cubic autocatalator chemical reaction model in continuous form. We investigate the existence of one and only positive fixed point and then we have obtained some parametric conditions for local stability of continuous system by using Routh-Hurwitz stability criteria. Moreover, we discretize the four-dimensional continuous cubic autocatalator chemical reaction model by using Euler’s forward method and then by using a nonstandard difference scheme we obtained a consistent discrete-time counterpart of four-dimensional cubic autocatalator chemical reaction model. Parametric conditions for local asymptotic stability of one and only positive fixed point of obtained system are also discussed. It is shown that the obtained system experiences the Neimark-Sacker bifurcation at one and only positive fixed point by using a general standard for Neimark-Sacker bifurcation. The discrete-time counterpart of genuine four-dimensional system displays chaotic dynamics at different standards of bifurcation parameter. Furthermore, the control of Neimark-Sacker bifurcation and chaos is also deliberated by using a generalized hybrid control scheme, which is based on parameter perturbation and feedback control. Finally, some numerical examples are given to strengthen our theoretical results.
Sistema de aprendizado de inglês – Let’s go!
Authors: Dias Júlia Elen , Gomes Natália de Souza , Dos Santos Samara Paula , Magdalena Stefanni Cristina , Martins Priscila Batista
Published: October 2021

Através do levantamento, análise e comparação dos sistemas disponíveis para aprendizado da língua inglesa, de maneira criteriosa e prática esta pequena pesquisa descreve. Busca-se melhorar o ensino do inglês para alunos do Ensino Fundamental, tendo como objetivo ensinar de maneira agradável e simples esta língua, atendendo aos objetivos educacionais previamente estabelecidos e, visando aspectos pedagógicos na utilização do software LET’S GO, fazendo com que através desse pequeno exemplo, possamos refletir sobre a importância de se aprender um novo idioma.

 

Through the survey, analysis and comparison of available for English language learning systems, careful and practical way this brief survey describes. We seek to improve the teaching of English to elementary school students, aiming to teach refreshingly simple language this way, given the previously established educational goals and pedagogical aspects in order to use the software, making it through this small example, can reflect on the importance of learning a new language.
The Hungarian Dance Theatre Education
Authors: Kun Attila
Published: October 2021

The purpose of the paper is to give an overview of dance theatre education related to Hungarian contemporary dances and relying on the results of current and still ongoing research. The paper surveys the embeddedness of participational dance education programmes in the structure of prose/drama theatre education, as well as the historical antecedents of its diverse methodology, its forms of financing throughout times and its activities.
On Body and Education
Authors: Lanszki Anita
Published: October 2021

The history of the teaching of movements is a remarkable field in the history of education, the research paradigm of which also presupposes social and cultural-historical studies and accurate document analysis. The impressive volume published in 2021 and edited by Simonetta Polenghi, András Németh and Tomáš Kasper, provides a comprehensive overview of the educational trends from the turn of the century to the 1950s. The book’s authors present the trends in physical education and movement arts in the European countries of the era from exciting perspectives. The studies focus on how the public health, ideology, art, and pedagogical trends of the first half of the 20th century influenced educational policy aspirations for the physical and artistic development of the body.
Programa de Cómputo para Estimar el Rendimiento de una Hélice Empleando una Corrección por Número de Mach a la Teoría Combinada
Authors: Roque Tiburcio Fernández , García Braulio Vera , Arredondo José Arturo Correa , Lezama Jorge Sandoval , Carmona Alejandro Mejía
Published: October 2021

En este trabajo se propone una corrección empírica por número de Mach a la teoría combinada para hélices y se describe el programa de cómputo desarrollado para determinar el comportamiento de la misma. El programa requiere como datos de entrada la geometría de la hélice y los coeficientes aerodinámicos en función del número de Mach de los perfiles de la pala de la hélice. Éste calcula los coeficientes aerodinámicos y las velocidades inducidas de cada elemento de pala empleando la teoría combinada, corrige los coeficientes aerodinámicos por efecto de compresibilidad y calcula la eficiencia, así como los coeficientes de tracción y de potencia de la hélice para diferentes velocidades de avance y, finalmente, los presenta en forma gráfica. Se observa que los resultados obtenidos con la teoría combinada corregida por número de Mach fueron satisfactorios ya que se aproximan más a los resultados experimentales que la teoría combinada simple.

 

This work proposes an empirical correction by Mach number to the BEM (Blade-Element Momentum) Theory for propellers and describes the software developed to determine the behavior of it. The input for the software is the geometry of the propeller and the aerodynamic coefficient in function of the Mach number for the airfoils used for the propeller chosen. The software calculates the aerodynamic coefficients and the induced velocities at each station of the blade of the propeller using the BEM theory, then corrects these coefficients by the effect of compressibility and calculates the efficiency, the traction and power coefficients for a range of forward velocities, and finally presents a graph with the results obtained. We can observe that the results obtain are satisfactory comparing with the experimental results and obtaining lower difference error by this method than with the simple BEM theory.
Predictores de salud y pobreza en contagios de covid-19 en municipios rurales
Authors: Garcia Martha Jiménez , Santiago Keyla Dylorien Jiménez , Horta Ingrid Anai Hernández
Published: October 2021

El objetivo fue analizar datos de salud y pobreza para encontrar causas de contagio de COVID-19 en municipios rurales segmentados por hombres y mujeres. Se elaboraron dos modelos de regresión lineal múltiple por el método de mínimos cuadrados ordinarios, con datos de municipios rurales del país. En los resultados se encontró que en los hombres el contagio aumenta cuando tienen neumonía, asma, hipertensión, obesidad y presentan alguna carencia social, en cambio, en las mujeres el contagio aumenta con neumonía, diabetes, inmunosupresión, obesidad, presencia de carencia social y vivir en pobreza extrema. Se recomienda dar continuidad al análisis de la pobreza en municipios rurales incluyendo la movilidad de la población para evitar contagios. El trabajo tiene como limitación la omisión de la edad, y su originalidad es el análisis de las causas de contagio de COVID-19 en las comunidades rurales. Se concluye que es necesario dar prioridad en atención de salud a los hombres con COVID-19 con enfermedades de asma, obesidad e hipertensión, así como a las mujeres con inmunosupresión y que viven en pobreza extrema.

 

The objective was to analyze health and poverty data to find causes of contagion of COVID-19 in rural municipalities segmented by men and women. Two multiple linear regression models were developed using the ordinary least squares method, with data from rural municipalities in the country. In the results, it was found that in men the contagion increases when they have pneumonia, asthma, hypertension, obesity and present some social deprivation, on the other hand, in women the contagion increases with pneumonia, diabetes, immunosuppression, obesity, presence of social deprivation and live in extreme poverty. It is recommended to continue the analysis of poverty in rural municipalities including population mobility to avoid contagion. The work is limited by the omission of age, and its originality is the analysis of the causes of contagion of COVID-19 in rural communities. It is concluded that it is necessary to give priority in health care to men with COVID-19 with asthma, obesity and hypertension diseases, as well as to women with immunosuppression and living in extreme poverty.
Monsoon vicissitude in COVID-19 and the vulnerable Indian health care system: an urgent call to circumvent the impending doom
Authors: Gondode Prakash Gyandev , Lambe Abhinav Vilas , Asai Omshubham Gangadhar
Published: October 2021

With the escalating number of covid-19 positive cases and amidst the glooming shadows of an anticipated second wave of the covid-19 pandemic, the health care system of a developing country like India is already under pressure. With the encroachment of monsoon season, the ghosts of the past haunt India. Monsoon brings along endemic diseases like dengue, malaria, swine flu, Japanese encephalitis, chikungunya, etc. Every year there is significant morbidity and mortality. These diseases have clinical features of fever, sore throat, and body aches in common, which also happens to be the common manifestations of covid-19. The growing stigma related to COVID-19, the fake news, and fear related to hospitalization and isolation may lead to low reporting cases to the hospitals. Lockdown and non-availability of beds may perplex the situation further. There is an urgent need of the hour to address this grave issue to prevent a major mishappening. A comprehensive evaluation of the health-care systems is desperately needed, especially on the fronts of governance, decision making, scientific and technical advice, and operational capacity.
Clinical and Neurological Symptoms in Acute Brain Stroke from Gender Dymorphism and Age Features
Authors:   Tashkent Medical Academy., Vakhabova N.M.
Published: October 2021

To date, CVD, in particular acute cerebrovascular accidents, have a clear tendency to increase. The existing domestic and especially foreign literature testifies to the established important medical and social problems of acute cerebral stroke in the society of humanity around the world. Stroke can develop at any age, but its frequency and prevalence increase with age. About 80% of strokes occur in people over 65, with age having a major impact on stroke outcomes.
Pricing and Market Results of Greek Coastal System after Cabotage Privilege Removal
(2002-2010): The Example of European and Global Aviation
Authors: Sitzimis Ioannis
Published: October 2021

Abstract

The purpose of this article is to compare Greek coastal shipping and aviation industry immediately after their liberalization. It focuses mainly on fare configuration analysis of domestic and global aviation to compare the conclusions with Greek coastal market. This is an innovative approach as there has been no such research effort on this issue in the past. The importance of our analysis lies to a large extent in exploring the improvement or deterioration of passenger services for the two modes of transport following the lifting of cabotage privilege. It can be a yardstick for those researchers who want to know in advance what could happen in the first years of liberalization in a transport industry. The analysis results show that the institutional framework and the economic market conditions in two industries characterized by both similarities and differences.

JEL classification numbers: R40, M21, L50.
Keywords: Global and European Aviation, Greek coastal shipping, Market liberalization, Lifting of cabotage privilege, Fares, Passenger service.
SUSTAINABLE DEVELOPMENT EFFICIENCY ANALYSIS OF BRAZIL AND OECD COUNTRIES
Authors: Camioto Flávia de Castro , Rodrigues Isadora Avemir Damaceno
Published: October 2021

The development of a country is not related to only its economic growth, once its sustainable development should consider social, economic and environmental aspects. This work intends to measure and analyze the efficiency of sustainability in Brazil comparing to other countries of OECD (Organization for Economic and Cooperation Development), understanding the current ambition of Brazil to compose the OECD. This analysis used a mathematical programming method called Data Envelopment Analysis (DEA), which enabled, from the SBM model and the window analysis, to evaluate the ability of countries to reduce the imputs (CO2 emission, energy consumption, unemployment rate and Gini index), as well as to increase the outputs (life expectancy, GDP, sustainable energy, sanitation of quality). The comparison between the countries was made using the sustainable efficiency ranking and the results of this study indicated that the Latvia and Chile is the most eficiente and in the fourth place there is Brazil. Moreover, relative slacks were analyzed and it was concluded that, although Brazil is not a benchmark in any variable, its slacks are relatively low. The index measured is important to contribute to the discussions related to evaluating the countries sustainability, helping to identify those with the best practices with regard to social, economic and environmental aspects; and guide policy decisions regarding government incentives to promote the development of countries in search of more sustainable production.
PENERAPAN TEKNIK PENGGAMBARAN GARIS KONTUR MENGGUNAKAN AUTO CAD 3D
Authors: Senduk Novatus
Published: October 2021

Dalam aplikasi gambar teknik konstruksi jalan jembatan terdapat bagian penggambaran garis kontur yang memberikan data ketinggian dari permukaan air laut rata-rata dan digambar pada interval yang sama untuk membuat suatu peta topografi. Saat ini teknologi sudah semakin maju, dalam setiap bidang kerja telah menggunakan  komputer yang dijadikan alat yang membantu mempermudah pekerjaan. Salah satu alat yang membantu mempermudah pekerjaan dibidang komputer adalah C.A.D ( Computer Aided Design ) atau Disain dengan bantuan Komputer, yang bertujuan untuk memudahkan para perancang dan juru gambar dalam menuangkan idenya secara visual dalam tampilan obyek gambar.

         Dengan adanya penelitian ini akan diperoleh pemahaman dan langkah-langkah menggambar garis kontur dengan menggunakan software AutoCAD, kemudian divisualisasikan kedalam bentuk yang nyata secara 3 dimensi, menghitung volume hasil penggambaran dan mengetahui kendala yang ada dalam menerapkan penggambaran garis kontur.

         Penelitian ini dilaksanakan dalam waktu delapan bulan. Metode penelitian yang akan dipakai adalah metode penelitian praktek ditinjau dari tempatnya, suatu pendekatan praktek, yaitu suatu penelitian  dilakukan di laboratorium yaitu laboratorium komputer/laboratorium Gambar dengan tidak menutup kemungkinan termasuk menggunakan tempat lain yang menyediakan fasilitas komputer.

            Hasil penelitian menggambar garis kontur yang cepat dan praktis adalah menggunakan Auto CAD 3D yang memperlihatkan visualisasi gambar 3 dimensi secara nyata.
Between Nationalism and Beaconism
Authors: Wang Jun , Cheng Henry
Published: October 2021

This study investigated how Chinese people in the U.S. view racism and racial issues from the perspective of Chinese university students in the U.S.. The research is based on Critical Race Theory (CRT) to define racism and found that the majority of Chinese college students regard the situation as a problematic one, and they are supportive of civil rights movements such as Black Lives Matter and Stop Asian Hate. Additionally, though most of the interviewees have not heard of CRT, through their responses to other questions, they show acceptance of the concepts of CRT; for example, almost all of the interviewees responded that they would consider racism as a social problem instead of a personal one.
PENINGKATAN HASIL BELAJAR DAN SIKAP BERPIKIR KRITIS MELALUI MODEL PEMBELAJARAN PROJECT BASED LEARNING PADA MUATAN PELAJARAN IPA KELAS V SD 1 KARANGREJO
Authors: Kustiah Sri
Published: October 2021

Penelitian ini bertujuan untuk meningkatkan hasil belajar dan sikap berpikir kritis pada kelas V SD Negeri 1 Karangrejo. Subjek dalam penelitian ini adalah siswa kelas V SD Negeri 1 Karangrejo yang berjumlah 23 siswa. Penelitian ini merupakan Penelitian Tindakan Kelas yang dilaksanakan dalam dua siklus pada setiap siklusnya terdiri dari dua kali pertemuan. Setiap siklus meliputi perencanaan, pelaksanaan tindakan, observasi dan refleksi. Data hasil penelitian dianalisis dengan menggunakan analisis data kuantitatif. Untuk memperoleh data sikap berpikir kritis siswa yaitu dengan menggunakan lembar observasi dan angket sikap berpikir kritis, sedangkan untuk memperoleh data hasil belajar dalam penelitian ini menggunakan lembar evaluasi yang diberikan pada setiap siklus. Berdasarkan hasil penelitian diperoleh sikap berpikir kritis siswa pada siklus 1 kategori tinggi sebanyak 17%, meningkat menjadi 87% pada siklus 2. Ketuntasan belajar siswa pada siklus 1 baru mencapai 43% dengan rata-rata kelas sebesar 69,61 meningkat menjadi 100% dengan rata-rata 89,13 pada siklus 2. Dari hasil tersebut dapat disimpulkan bahwa melalui penerapan pembelajaran model Project Based Learning dapat meningkatkan hasil belajar dan sikap berpikir kritis pada Muatan Pelajaran IPA Kelas V SD Negeri 1 Karangrejo.
PENINGKATAN MOTIVASI DAN HASIL BELAJAR SISWA PADA PEMBELAJARAN DARING MELALUI MEDIA ZOOM MEETING DI MADRASAH IBTIDAIYAH KOTO TUO PULAU TENGAH KABUPATEN KERINCI
Authors: Lidarnita Lidarnita
Published: October 2021

Penelitian ini dilakukan untuk mengetahui apakah media zoom meeting dapat meningkatkan motivasi dan hasil belajar siswa pada pembelajaran daring siswa kelas VI Madrasah Ibtidaiyah No.40 /E.3 Koto Tuo Pulau Tengah Kec Keliling Danau Kabupaten Kerinci. Jenis penelitian yang digunakan adalah penelitian Tindakan kelas (PTK). Subjek penelitian yakni siswa kelas VI Madrasah Ibtidaiyah No.40 /E.3 Koto Tuo Pulau Tengah Kec Keliling Danau Kabupaten Kerinci. Desain penelitian menggunakan model Kemmis dan McTaggart yang meliputi perencanaan, Tindakan, observasi, dan refleksi. Metode pengumpulan data yang digunakan adalah observasi dan tes. Hasil penelitian menunjukkan bahwanya adanya peningkatan motivasi dan hasil belajar siswa pada pembelajaran daring dengan menggunakan media zoom meeting. Hal ini dapat dilihat dari ketuntasan KKM siswa pada setiap siklusnya. Rata-rata pada siklus I sebesar 76,5 dengan kategori cukup, dan pada siklus II sebesar 87 dengan kategori baik. Dengan demikian, dapat disimpulkan bahwa pembelajaran daring menggunakan media zoom meeting dapat meningkatkan motivasi dan hasil belajar siswa.
Đánh giá tác động môi trường và nguy cơ xảy ra sự cố trong quá trình xây dựng, vận hành các dự án điện mặt trời
Authors: Nguyen Le My Nhan , Luong Kim Ngan , Pham Thi Le Na , Tran Phi Hung
Published: October 2021

Bài báo đánh giá tác động của các dự án điện mặt trời quy mô lớn đến môi trường theo từng giai đoạn triển khai dự án, trong đó có vấn đề quản lý và xử lý chất thải từ các tấm pin đã hết thời gian sử dụng, các sự cố trong quá trình xây dựng, vận hành công trình điện mặt trời... Các tác động được nhận diện, đánh giá để làm cơ sở phân tích tính hiệu quả dự án trong bối cảnh phát triển kinh tế gắn với mục tiêu phát triển bền vững môi trường tự nhiên và xã hội. Trên cơ sở đó, nhóm tác giả đề xuất các hướng nghiên cứu giúp các cơ quan quản lý. Nhà nước ban hành các quy định cần thiết trong quá trình phê duyệt và quản lý, giám sát môi trường cho các dự án điện mặt trời trong tương lai.
Nghiên cứu sử dụng khí nén để hóa mù cho hệ thống nhiên liệu dầu diesel của Nhà máy Nhiệt điện Vũng Áng 1
Authors: Minh Nguyen Van , Quynh Tran , Hoàng Ha Huy , Long Mai Van , Huong Nguyen Quoc , Hung Pham Viet , Hung Nguyen Huu
Published: October 2021

Tại các nhà máy nhiệt điện than, dầu diesel (DO) được sử dụng trong quá trình khởi động, dừng hoạt động tổ máy hoặc đốt kèm để đảm bảo chế độ cháy ổn định. Mỗi lần khởi động lại, lò hơi sẽ tiêu tốn khoảng trên 500 tấn DO, tương đương 12 tỷ đồng.

Để tiết giảm chi phí sản suất điện và tối ưu hóa lợi nhuận, Phân xưởng vận hành Nhà máy Nhiệt điện Vũng Áng 1, Tổng công ty Điện lực Dầu khí Việt Nam (PV Power) đã nghiên cứu áp dụng giải pháp hóa mù DO bằng khí nén thay cho phương pháp hóa mù DO bằng hơi bão hòa truyền thống. Kết quả áp dụng phương pháp mới này giúp giảm khối lượng DO mỗi lần khởi động xuống dưới 200 tấn, góp phần giảm chi phí sản xuất điện, tối ưu hóa lợi nhuận, đặc biệt tăng tính cạnh tranh trong thị trường điện.
Implementation of the Teaching on the Life of the Apostle Paul in Serving Based on 2 Timothy 3:10-17
Authors: Soelistiyo Daniel Zacheus , Suparti Hana , Purwoko Paulus Sentot , Lestari Ana
Published: October 2021

The pastor cannot be separated from his ministry life. In the church, the pastor is a leader, the attitudes and actions of pastors are often imitated by their congregation. Therefore, the pastor must maintain the attitudes and actions of his congregation as well as possible, the most important thing is that he must be able to set an example for others. For this reason, this article describes Paul's life teaching in serving as the goal in this writing which is beneficial for the implementation of the shepherd in serving God and others. Using descriptive qualitative method with literature study and analysis approach. So it can be concluded that the implementation of teaching about the life of the Apostle Paul in serving is based on 2 Timothy 3:10-17, among others: The Apostle Paul's Way of Life (Verse 10a). The Patience of the Apostle Paul (Verse 10b). The love of the Apostle Paul (Verse 10c). Perseverance of the Apostle Paul (Verse 10d). Live Hold on to the truth (Verse 14). Seek to know the Scriptures (Verse 15a). Wisdom (Verse 15b). Faith in Jesus (Verse 15). Living in the Word (Verse 16) Willing to Teach God's Word (Verse 16a). Willing to admit mistakes (Verse 16b). Willing to correct behavior (Verse 16c). Willing to be educated in the truth (Verse 16d). Willing to do good (Verse 17). All of this can be a guide for pastors in implementing Paul's teachings for the church and its ministry entrusted by God.
Students’ Satisfaction with the University of Cape Coast Residential and Academic Experiences
Authors: Boakye-Yiadom Michael
Published: October 2021

The purpose of the study is to explore students’ satisfaction with the University of Cape Coast experience. The study adopted a sequential explanatory mixed-method design and used current students as the population of the study. A sample size of 420 students was used for the study. The study used questionnaires and focus group interview guides to obtain data from participants. The study used descriptive statistics and a thematic analysis approach to analyse the data obtained. The study revealed that students are less satisfied with residential services and attributed this to irregular water supply, unsanitary toilet and urinal facilities, congestion in student rooms. Furthermore, the study showed that students were less satisfied with some academic services. The study recommended that the leadership of departments, faculties and colleges need to review their curriculum with the approval of the Academic Board to enhance students’ practical experiences in their academic programmes.
Alignment of the planned and implemented curricula in Junior High School English Language, Mathematics and Science in three Districts in Ghana
Authors: Davis Ernest Kofi , Owusu Amponsah Mark , Kwaah Christopher Yaw , Beccles Christopher
Published: October 2021

This paper draws on conceptualization of levels of curriculum as planned, implemented and attained curriculum to explore the alignment between the planned and implemented English Language, Mathematics and Science curricula in Ghana. A survey of curriculum delivery by 124 Junior High School Form 2 English, Mathematics and Science teachers, with 1268 of their students from 51 public and private schools, made up of a mix of below-average, average and above-average schools in terms of academic achievement of the students from three districts in the Central Region was carried out. A multi-stage sampling technique involving purposive and stratified random sampling methods were used in the selection of the research participants. The data were collected through documentary review, questionnaire survey for teachers and interviews with students. The data collected were analysed using both quantitative and qualitative methods. The quantitative data were analysed using frequency counts and descriptive statistics, while the qualitative data were analysed qualitatively and presented as narrative description with illustrative examples. The study revealed that gaps existed between the planned and the implemented English Language, Mathematics and Science curricula. Discussion of the findings and implications for practice, policy and research in Ghana and countries that share similar situation as Ghana are provided.
Geçiş Ekonomisi Örneği Olarak Azerbaycan: Kentleşme ve Çevre
Authors: Örki Armağan , Özdemir Çağlar
Published: October 2021

Çalışmada, geçiş ekonomileri içinde özel bir örnek olarak kabul edilen ülkelerden Azerbaycan ele alınmıştır. Azerbaycan’daki kentleşme ve çevre konusundaki değişimler incelenmiştir. Buna karşın Sovyet Sosyalist Cumhuriyetler Birliği dönemine ilişkin kesin bilgilere erişim sağlamada zorluk çekilmiştir. Bu doğrultuda Soğuk Savaş sonrası dönem incelenmiştir. Çalışmada ilk olarak geçiş ekonomisi kavramı üstünde durulmuş ve bu bölümde ayrıca kentleşmeyle çevre ilişkisi ele alınmıştır. Ardından Azerbaycan’ın geçiş ekonomisi sürecine yer verilmiş, dış ticareti ile kentleşme sürecinin çevreye olan etkisi üstünde durulmuştur. Özellikle su kirliliği ile petrol çıkarımının etkileri olduğu (Hazar Denizi) tespit edilmiş ve yıldan yıla sürdürülebilir çevre konusundaki adımların daha sağlam atıldığı görülmüştür. Çalışmayla amaçlanan kentleşme ve çevre olgularının birbirleriyle olan etkileşimini örnek olay üstünden göstermek ve geçiş ekonomisi ile hammadde zengini olan Azerbaycan örneğini incelemektir. Çalışmanın hipotezi “Geçiş ekonomisi olan Azerbaycan’da kentleşmeyle birlikte çevre sorunları artmıştır.” şeklinde belirlenmiştir. Çalışma, literatür taraması yapılarak oluşturulmuş ve resmî kaynakların verilerinden de yararlanılmıştır.
ВЛИЯНИЕ ТИТАНОМАГНИЕВОГО КАТАЛИЗАТОРА НА ПОЛИМЕРИЗАЦИЮ ПОЛИПРОПИЛЕНА В УСЛОВИЯХ ТОО «КОМПАНИЯ НЕФТЕХИМ LTD»
Authors: Слямов Ергазы Жумагазыевич , Масакбаева Софья Руслановна
Published: October 2021

Полипропилен обладает ценным сочетанием свойств, изучение которых привлекает внимание многих исследователей, работающих как в области теории макромолекулярной химии и физики, так и в области переработки и применения полимерных материалов. Решающее влияние на свойства полипропилена и изделий из него оказывает молекулярная и надмолекулярная структура полимерной цепи. Полипропилен характеризуется более сложной молекулярной структурой, чем большинство производимых промышленностью полимеров, так как, помимо химического состава мономера, среднего молекулярного веса и молекулярновесового распределения, на его структуру оказывает влияние пространственное расположение боковых групп по отношению к главной цепи. В техническом отношении наиболее важен и перспективен изотактический полипропилен. В зависимости от типа и соотношения присутствующих стереоизомеров свойства полипропилена изменяются в широком диапазоне. От молекулярной структуры полимеров зависит метод их переработки, который в свою очередь влияет свойства готового изделия. При изучении того или иного свойства полипропилена невозможно исключить влияние большого или меньшего числа факторов, что с одной стороны выгодно, так как позволяет судить об одном явлении с разных точек зрения, а с другой вызывает существенные затруднения при сравнении результатов. Например, при изучении прочности при растяжении или изгибе полипропилена, следует учитывать, что проводимый показатель является всего лишь одним из целого ряда значений, которые могут быть получены по различным методикам на образцах с разной молекулярной структурой и приготовленных различными методами. На ТОО «Компания Нефтехим LTD» ведутся работы по улучшению качества и расширения линейки выпускаемого полипропилена, путем замены катализаторов на стадий полимеризации и добавлением специальных добавок на стадий грануляции. Для отслеживания результатов у компании имеется собственная лаборатория.
Лазерная резка авиационных алюминиевых сплавов в условиях интенсивного испарения материала
Authors: Шулятьев Виктор Борисович , Маликов Александр Геннадьевич
Published: October 2021

Экспериментально исследованы характеристики реза алюминиевых сплавов излучением импульсно-периодического СО2-лазера с модуляцией добротности и высокой пиковой мощностью, когда происходит развитое испарение материала. Разрезались листы алюминиевых сплавов системы Al-Mg-Li и Al–Cu–Li толщиной 1,5 мм и 2 мм, в качестве технологического газа использовались аргон и воздух. Установлено, что морфология поверхности реза существенно различна при использовании аргона и воздуха. Впервые реализован режим лазерно-плазменной резки, когда в процессе резки поддерживается оптический разряд в потоке аргона. Получен рез с малой шероховатостью поверхности и без грата при давлении аргона 0,5 bar, что значительно ниже величин, при которых достигается высокое качество реза в случае резки непрерывным лазером. Удельные затраты лазерной энергии на создание качественного реза близки при лазерно-плазменной резке алюминиевого сплава и резке непрерывным СО2-лазером.
MATERIALS FOR STEEL DIFFUSION DEOXIDATION
Authors: Chaikin Vladimir Andreevich , Chaikin Andrey Vladimirovich
Published: October 2021

The work carried out tests and implementation of a diffusion alumina-containing deoxidizer (RDA) for steels produced by LTD Metallurg SRD RAC according to TS 0826-003-47647304-2001. The deoxidizer was used instead of traditional mixtures consisting of lime, FS65 ferrosilicon and fluorspar. RDA is a mixture of powders of carbon-, silicon- and aluminum-containing materials produced by physicochemical methods and had high dispersion. With the use of RDA, 2,704.82 tons of billets were smelted, treated and poured. Carbonaceous material and FS65 were excluded from the diffusion deoxidation process. Fluorspar consumption was reduced by 50 %. The average consumption of RDA for this period was 0.41 kg / t (for comparison: the consumption of FS65 for diffusion deoxidation is 1 kg / t).
Anti-leukemia properties of cadmium nanoparticles in the in vitro and in vivo condition: A chemobiological study
Authors: Miao Yudi , Mahdavi Behnam , Zangeneh Mohammad
Published: October 2021

Introduction

The present study investigated the anti-acute myeloid leukemia effects of Ziziphora clinopodides Lam leaf aqueous extract conjugated cadmium nanoparticles.

Material and methods

To synthesize CdNPs, Z. clinopodides aqueous extract was mixed with Cd(NO3)2 .4H2O. The characterization of the biosynthesized cadmium nanoparticles was carried out using many various techniques such as UV-Vis. and FT-IR spectroscopy, XRD, FE-SEM, and EDS.

Results

The uniform spherical morphology of NPs was proved by FE-SEM images with NPs the average size of 26.78cnm. For investigating the antioxidant properties of Cd(NO3)2, Z. clinopodides, CdNPs, and Daunorubicin, the DPPH test was used. The cadmium nanoparticles inhibited half of the DPPH molecules in a concentration of 196 µg/mL. To survey the cytotoxicity and anti-acute myeloid leukemia effects of Cd(NO3)2, Z. clinopodides, CdNPs, and Daunorubicin, MTT assay was used on the human acute myeloid leukemia cell lines i.e., Murine C1498, 32D-FLT3-ITD, and Human HL-60/vcr. The IC50 of the cadmium nanoparticles was 168, 205, and 210 µg/mL against Murine C1498, 32D-FLT3-ITD, and Human HL-60/vcr cell lines, respectively. In the part of in vivo study, DMBA was used for inducing acute myeloid leukemia in mice. CdNPs similar to daunorubicin ameliorated significantly (p≤0.01) the biochemical, inflammatory, RBC, WBC, platelet, stereological, histopathological, and cellular-molecular parameters compared to the other groups.

Conclusions

As mentioned, the cadmium nanoparticles had significant anti-acute myeloid leukemia effects. After approving the above results in the clinical trial studies, these cadmium nanoparticles can be used as a chemotherapeutic drug to treat acute myeloid leukemia in humans.
A UTILIZAÇÃO DA OBSERVAÇÃO GUIADA DE BALEIAS NA APA, COMO FORMA DE CONSCIENTIZAÇÃO DA POPULAÇÃO: USO DO POTENCIAL TURÍSTICO DA ÁREA DE PROTEÇÃO AMBIENTAL DA BALEIA FRANCA
Authors: Marques Thiago Domingos
Published: October 2021

Introdução: Este estudo buscou avaliar a atividade sustentável de observação de baleias, na Área de Proteção Ambiental da Baleia Franca localizada no litoral do sul de Santa Catarina, criada pelo decreto federal s/nº em 14 de setembro de 2000, como uma área de 156 mil hectares, 130 km de costa marítima, abrangendo nove municípios, desde o sul da ilha de Santa Catarina até o Balneário Rincão. As finalidades da APA da Baleia Franca são proteger, em águas brasileiras, a baleia franca austral (Eubalaena australis), ordenar e garantir o uso racional dos recursos naturais da região, ordenar a ocupação e utilização do solo e das águas, ordenar o uso turístico e recreativo, as atividades de pesquisa e o tráfego local de embarcações e aeronaves. Objetivos: O estudo buscou identificar as formas de consciencialização para preservação da baleia franca, por meio das observações guiadas. Material e métodos: A metodologia utilizada foi a pesquisa bibliográfica e análise com visitas e atividades guiadas de observação de baleias in loco Resultados: O nosso país é considerado um dos 10 melhores para se observar os cetáceos, incluindo a Baleia Franca e a Baleia Jubarte. O uso da atividade de observação guiada de Baleias na APA, demonstrar-se viável e um potencializar da consciencialização da população sobre a importância das baleias na comunidade inserida na região de observação, além do uso do potencial turístico da Área de Proteção Ambiental da Baleia, com o aumento do crescimento do turismo regional, no caso do turismo de observação e baleias, houve um reforço nas ações de divulgação do calendário 2021, com apoio do Sebrae/SC e da Santur de Santa Catarina. Entre as cidades de Garopaba, Imbituba e Laguna, foi criada a Rota da Baleia Franca, um destino que abrange alguns dos melhores pontos para se observar os animais. Conclusão: Pode-se identificar com o trabalho que, com a chegada das centenas de Baleias Francas entre julho e novembro, de forma sustentável, há um aumento exponencial do turismo regional na APA, potencializando o turismo e o aumento da conscientização da população sobre a importância da preservação das Baleias na região.
COMPORTAMENTO ALIMENTAR E DE CAÇA DAS BALEIAS ASSASSINAS (ORCINUS ORCA) – REVISÃO DE LITERATURA
Authors: Bergamini Miriã Lima , Trumai Ana Kuiau Suya
Published: October 2021

Introdução: As baleias assassinas habitam todos os oceanos e têm uma enorme variedade de alimentação (mais de 140 espécies de animais). Devido a essa vasta amplitude de habitat existem 10 ecótipos diferentes de orcas. As mais estudadas são as do oceano pacífico norte, no qual populações simpátricas desenvolveram dois tipos de alimentação, tendo ficado conhecidas como residentes e transitórias. Objetivos: Exemplificar os diferentes tipos de caça que são utilizados pelas orcas residentes e transitórias. Material e Métodos: No mês de Agosto de 2021 foi realizada uma pesquisa bibliográfica nas plataformas Google Scholar e ResearchGate, utilizando as palavras-chave em inglês: Behavior; Hunt e Killer Whale; foram considerados 15 trabalhos para a realização deste estudo. Resultados: As orcas residentes se alimentam de peixes, a espécie mais observada foi o salmão chinook. Apresentam duas técnicas diferentes, no qual utilizam de cliques de ecolocalização para procurar os peixes. A primeira é chamada de alimentação em carrossel e consiste em perseguir os cardumes em direção a áreas de superfície de alto relevo, assim as presas ficam concentradas e as orcas se alimentam dos peixes que ficam atordoados por seus movimentos de cauda. A segunda se chama alimentação subterrânea e consiste nas baleias se movendo de forma isolada em áreas limitadas. Os relatos de caça das transientes tiveram desde pequenas durações (tubarão - 30 min) até longas durações (cachalotes - 4 horas). Ao caçar grandes cetáceos geralmente escolhem os indivíduos mais jovens e utilizam de uma estratégia de “ferir e retirar”, no qual pequenos grupos revezam entre ataques curtos e movimentação para impedir a fuga, também fazem tentativas de afogamento ao nadar sobre as costas da presa, buscando fatigar sua presa para tornar mais fácil a morte por asfixia. Durante a predação participam dos ataques fêmeas e jovens. A última estratégia especializada de caça consiste no encalhe intencional tendo como presas os pinípedes. Conclusão: A grande diferença entre as orcas transitórias e residentes são baseadas nos tipos de alimentação e diferenças aprendidas, as estratégias especializadas das transitórias são passadas por gerações representando mecanismos culturais. O ponto em comum entre os dois tipos é o uso da cooperação.