bluuebunny/crossref_metadata_2025 huggingface dataset:
Prediction of Plastic-Type for Sorting System using Fisher Discriminant Analysis
Authors: Yani Irsyadi , Resti Yulia , Burlian Firmansyah , Yani Ansyori
Published: October 2021

Recycling is a more environmentally friendly method of managing and reducing plastic waste that can significantly reduce land degradation, pollution, and greenhouse gas emissions. According to its composition, an essential first step in the recycling process is sorting out plastic waste. However, inadequate sorting of plastic types can result in cross-contamination and increasing industrial operating costs. A low-cost automated plastic sorting system can be developed by using digital image data in the red, green, and blue (RGB) color space as the dataset and predicting the type using learning datasets. The purpose of this paper is to demonstrate how to use Fisher Discriminant Analysis (FDA) to predict the plastic type from a digital image of the RGB model and then evaluate the performance using cross-validation. This work has four main steps: collecting plastic digital image data, forming statistical tests, predicting plastic types, and evaluating prediction performance. FDA is quite effective for predicting the type of plastic. Performance measures the accuracy of 87.11 %, the recall-micro of 91.67 %, the recall-micro of 80.97 %, the specificity-micro of 90.33 %, and the specificity-macro of 90.38 %, respectively. The micro is determined by the number of decisions made for each object. In comparison, the macro is calculated based on the average decision made by each class.
Determining The Number of Connected Vertex Labeled Graphs of Order Seven without Loops by Observing The Patterns of Formula for Lower Order Graphs with Similar Property
Authors: Ansori Muslim , Wamiliana Wamiliana , Puri Fadila Cahya
Published: October 2021

Given n vertices and m edges, m ≥ 1, and for every vertex is given a label, there are lots of graphs that can be obtained. The graphs obtained may be simple or not simple, connected or disconnected. A graph G(V,E) is called simple if G(V,E) not containing loops nor paralel edges. An edge which has the same end vertex is called a loop, and paralel edges are two or more edges which connect the same set of vertices. Let N(G7,m,t) as the number of connected vertex labeled graphs of order seven with m vertices and t (t is the number edges that connect different pair of vertices). The result shows that N(G7,m,t) = ct C (m−1) t−1, with c6=6727, c7=30160 , c8=30765, c9=21000, c10=28364, c11=26880, c12=26460, c13=20790, c14=10290, c15= 8022, c16=2940, c17=4417, c18=2835, c19=210, c20= 21, c21=1.
ENSINO REMOTO EMERGENCIAL: CONTEXTOS DOS DOUTORADOS EM EDUCAÇÃO NO AMAZONAS
Authors: Medeiros Josué Cordovil , Andrade Alexandra Nascimento de , Costa Maria Leogete Joca da , Ghedin Evandro Luis
Published: October 2021

Este trabalho foi guiado pela seguinte questão: Como os doutorandos de programas em Educação no Amazonas vivenciaram os desafios do ERE (Ensino Remoto Emergencial) e quais ações eles sugeriram para melhor atender à sua realidade local em tempos de pandemia da Covid-19? Teve como objetivo: refletir sobre o “ensino remoto-com-tecnologias digitais”, no contexto dos cursos de Doutorado em Educação, do Programa de Pós-graduação em Educação – PPGE, da Universidade Federal do Amazonas (UFAM), e do curso de Doutorado em Educação na Amazônia, do Programa de Pós-graduação em Educação na Amazônia – PGEDA, oferecido em rede, formado por nove universidades do Norte do Brasil, dentre elas a Universidade Federal do Amazonas (UFAM) e a Universidade do Estado do Amazonas (UEA). O estudo ancora-se nos preceitos da pesquisa descritiva fundamentada em Fonseca (2010), cujas reflexões sobre o Ensino Remoto Emergencial (ERE) possibilitaram descortinar olhares para os desafios, superações e os entraves no cenário da Pós-Graduação. A coleta de dados ocorreu através do formulário Google, mediante a um link compartilhado via WhatsApp. Os resultados obtidos apontaram dificuldades, no que se refere à educação em ambientes virtuais, tanto por parte dos docentes quanto pelos discentes - fator a ser superado nas experiências com o ERE. E para uma melhor sistematização e compreensão dos achados no tocante aos problemas, organizou-se em duas categorias: 1) Desafios referentes ao ERE e 2) Ações a serem inseridas nas práticas pedagógicas-com-TD, das quais se extraiu as subcategorias denominadas de: dificuldades de conexão, “didática-com-TD” e interação no ERE.
Probiyotik Peynirlerle İlgili Araştırmalar ve Endüstrideki Uygulamaları
Authors: AYDOĞDU Nilüfer Sena , KÖK TAŞ Tugba
Published: October 2021

Günlük hayatımızda probiyotik, fonksiyonel gıdalar, nutrasötikler ve sağlıklı beslenme gibi kelimeleri daha bilinçli kullandıkça raflarda bunlara yönelik ürünlere olan talep de artmaktadır. Endüstri ise gelişen teknolojik uygulamalar, bilime ulaşma kolaylığı ve Ar-Ge çalışmalarına verilen önemle bu tarz ürünleri raflara koymakta yarışmaktadır. Probiyotiklerin gıda alanında özellikle süt ürünlerinde daha sık kullanımı dikkat çekicidir. Farklı probiyotik mikroorganizmaların kullanımı bu sayısal üstünlüğü sağlamada destekleyen unsurdur. Yanı sıra süt ürünleri yelpazesinin genişliği ve süt ürünlerinin bu mikroorganizmalar için uygun ortam oluşu probiyotik ürün çeşitliliğini sağlamaktadır. Süt endüstrisinde probiyotikler en çok yoğurt ürününde kullanılmaktadır, peynirde daha az kullanılmasının nedenlerinin en başında, uzun raf ömrü süresince probiyotik mikroorganizma sayısının korunamaması gelmektedir. Bu derlemede, probiyotikler, probiyotiklerle zenginleştirilmiş peynirler ile ilgili araştırmalar, kullanılan kültürlerin ürün kalitesindeki etkileri ve peynirlerin üretiminde probiyotik mikroorganizmaların canlılığını etkileyen faktörler ile ilgili yapılan çalışmalar incelenmiştir. Ayrıca Türkiye ve dünyada probiyotik peynir üretimi değerlendirilmiştir. Probiyotik mikroorganizmaların biyoyararlılıkları sebebiyle alternatif ürün olarak probiyotik peynir üretiminin teşvik edilmesi önerilmektedir.
Uçucu Külün Yapı Malzemelerinin Mukavemeti ve Bağlayıcılığına Etkisinin Araştırılması
Authors: ÇUBUK Meltem , GÜRÜ Metin , ARSLAN Deniz , ÖZDEMİR Onur
Published: October 2021

Dünyada yaşanılan iklim değişikli nedeniyle enerji temini gibi hafif yapı malzemelerinin kullanımına yönelik araştırmalar son yıllarda hız kazanmıştır. Tasarım uygulamalarının birçoğu iklimi de dolaylı olarak etkileyecek nitelikte olduğundan yapılan araştırmalar, fosil yakıtlara bağlı olmaksızın, düşük karbonlu bir geleceği teşvik etmeye yardımcı olacaktır. Yapı malzemelerinde aranan özellikler; ekonomiklik, dayanım, insan sağlığına ve çevreye olumsuz etkisinin bulunmamasıdır. Türkiye’de kömür yakıtlı termik santrallerde 2017 yılında 63 milyon ton linyit elektrik üretimi amacıyla tüketilmiştir. Yakılan kömürlerden elde edilen uçucu küller, depolama alanlarında depolanmakta rüzgar, yer altı ve yer üstü suyu ile taşınarak çevre ve insan sağlığını olumsuz yönde etkilemektedir. Bu çalışmada, puzolan özellik gösteren, kireç oranı yüksek ve atık malzeme nitelendiğinde Yatağan Termik Santrali uçucu külü kullanılmıştır. Standart bağlayıcı malzemeler olarak bilinen çimento, kireç ve alçı yerine kullanılabileceği düşünülen uçucu külün bağlayıcı özelliği ve malzemenin mukavemeti üzerine araştırma yapılmıştır. Deneysel çalışmalarda üretilen 4x4x16 cm ebatlarındaki numunelere basınç ve eğilme deneyleri uygulanarak mekanik dayanımları belirlenmiştir. Deneyler sonucunda 4.4 nolu numunede en yüksek eğilme dayanımı 2,39 MPa, 3.1 nolu numunede en yüksek basınç dayanımı 10,03 MPa olarak bulunmuştur. Yapılan çalışmalar sonucunda puzolan özelliğe sahip uçucu küllerin bağlayıcı etkisi görülmüş ve dolgu malzemesi olarak mekanik dayanımda artış sağladığı tespit edilmiştir.
Düzce Kentinde Dikey Bahçe Uygulanabilirliğinin Araştırılması
Authors: DEDEİ DÜNDAR Özge , DEMİR Zeki
Published: October 2021

Dikey bahçeler, şehirlerde git gide azalan yeşil alan gereksinimini kısmen gidermek ve tek düze betonlaşma arasında alternatif yeşili yaşatmak için ortaya çıkmış en iyi buluşlardandır.“Yaşayan Duvar” adıyla da anılan dikey bahçeler, yapıların dış yüzeylerinde ve topraksız ortamda canlı bitki yetiştirilmesi esasına dayalıdır.Dış mekanda uygulanan dikey bahçeler kentlerde; yeşil alan miktarını, hava ve yaşam kalitesini artırma, biyolojik çeşitlilik sağlayarak ekolojik bilinci yaygınlaştırma etkileriyle beraber ısı-enerji bütçesi, toz partiküllerini tutarak karbondioksit salınımını azaltma gibi önemli konularda da iyileştirmeler yapmaktadır. Dikey bahçeler uygulandığı alandaki etkilerinin yanı sıra psikolojik olarak kişilerde olumlu hislere ve düşüncelere de sebep olmaktadır.Bu çalışma kapsamında Düzce’nin kimliğini yansıtabilecek kilit bölgeler (Çoban Dalçık, Asar Deresi, Düzce Şehirler Arası Otobüs Terminali) seçilerek alanlara uygun iki boyutlu ve üç boyutlu dikey bahçe tasarımları (Efteni Gölü, Akçakoca İlçesi, Konuralp Antik Kent Kalıntıları, Düzce İli’nde Yapılan Spor Dalları) yapılarak; yapay-doğal, estetik-estetik değil, yorucu-dinlendirici, uyumsuz-uyumlu, karışık-anlaşılır, sıradan-modern karşılaştırılmalı sıfatlarla tanımlanarak anket çalışmasıyla kullanıcılara sunulmuştur.
Surface Modification of PC and PMMA sheet for Enhanced Scratch Resistance
Authors: İskender Şenay , İşmar Serkan , Evcin Atilla
Published: October 2021

POLICAM PMMA (polymethylmethacrylate) and polycarbonates (PC) sheet used in many sectors such as furniture, decoration, building materials, lighting have optical properties. They are thermoplastic polymer sheets with a maximum usage
temperature of 80 ° C. Thermoplastic polymer with amorphous structure is quite transparent and has the closest permeability to glass. Its density is half the density of glass and it is light. Fabrication applications are very easy.
It is preferred instead of glass. Surface scratches are seen in areas of use in the environments where it is exposed. Surface improvement applications can be made with functional coatings. Sol-gel method is one of the most widely
used methods because it is easy and useful in functional coating of ceramic, glass and plastic surfaces. In this study, the sol gel method was preferred for coating PMMA and PC plate surfaces. The prepared functional coating is
applied to PC and PMMA sheet surface in certain thicknesses by means of an applicator. The improvements seen on the plate surface after the coating has cured have been controlled. Surface scanning with SEM, anti-scratching of the
surface with pencil hardness test, and permanent properties on the surface were determined by artificial aging.
Application of Self Directed Learning Model to Improve Student's Independence and Critical Thinking Skills
Authors: Wasyilah Wasyilah , Yusrizal Yusrizal , Ilyas Suhrawardi
Published: October 2021

The lack of active involvement of students in learning is caused by the lack of students' skills in critical thinking, for example, by asking questions, expressing opinions, and solving problems so that students only memorize existing concepts, theories, and formulas without wanting to dig further to be understood in depth. This study aims to determine the increase in independence and critical thinking skills on momentum and impulse material at SMAN 9 Banda Aceh. The method in this study was quasi-experimental, then the instruments used were questionnaire sheets, observation sheets, and questions. The results of the study indicate that the application of the Self Direct Learning learning model can increase student learning independence. The results of the t-test analysis (independent sample t-test) obtained a significance value of 0.000 <0.05, meaning that there is a significant difference in the average learning independence of students in the experimental class and the control class. The application of the self-directed learning model can improve students' critical thinking skills. The results of the analysis of students' Critical Thinking Skills obtained a significance value of 0.000 <0.05, meaning that there was a significant average difference between students' critical thinking skills in the experimental class and the control class. The conclusion in this study proves that the Self Direct Learning model can increase students' learning independence and Critical Thinking Skills on momentum and impulse materials
The Effect of Microhabitat Diversity on the Similarity of Soil Insect Types at Lombok Island, Indonesia
Authors: Rohyani Immy Suci
Published: October 2021

Soil insects are a group of organisms whose existence is highly dependent on their microhabitat. Its presence is indispensable because of its ability to reform and decompose organic matter. The presence of soil insects illustrates the functioning of a habitat. This study aims to analyze abiotic and biotic environmental conditions in several types of soil insect habitats on the island of Lombok and securitize the level of similarity of insect species in each of these habitats. The research method used in determining the initial sample point in each habitat is purposive sampling. The parameters observed are those thought to influence the presence of soil insects, including parameters of the abiotic environment and parameters of the biotic environment. The results obtained were that the soil insects found in forest, garden, mangrove, and mining habitats had a high degree of similarity. Forest and garden habitats have a preferred micro-habitat because of the high levels of organic C, moisture, total N, and neural soil pH as environmental factors that most support the existence of soil insects
Pembelajaran Picture and Picture Berbasis Modul Resitasi Terhadap Retensi Mahasiswa
Authors: Mukarramah Mukarramah , Muhibbuddin Muhibbuddin , Hasanuddin Hasanuddin
Published: October 2021

Abstract: Penelitian ini bertujuan untuk mengetahui peningkatan retensi belajar mahasiswa pada materi sistem rangka manusia melalui penerapan model pembelajaran Picture and Picture (PAP) berbasis modul resitasi. Penelitian ini menggunakan metode eksperimental menggunakan pretest posttest control group design. Populasi dalam penelitian ini adalah seluruh mahasiswa semester 6. Berjumlah 132 mahasiswa. Sampel dalam penelitian ini terdiri dari 60 mahasiswa yang dipilih secara acak. Instriumen dalam penelitian ini yang digunakan adalah modul berbasis resitasi dan perenagkat tes berupa soal kognitif. Teknik analisis data retensi belajar mahasiswa menggunakan rumus recognition methods. Hasil penelitian menunjukkan bahwa retensi kelas eksperimen memiliki kategori sangat baik dibandingkan dengan kelas kontrol. Dengan demikian penerapan model pembelajaran PAP berbasis modul resitasi dapat meningkatkan retensi belajar mahasiswa pada materi sistem rangka manusia. Keywords: Picture and Picture, Modul berbasis Resitasi, Retensi
Development of Four Tier Multiple Choice Diagnostic Tests to Know Students' Misconceptions in Science Learning
Authors: Juliani Juliani , Yusrizal Yusrizal , Huda Ismul
Published: October 2021

Penelitian ini bertujuan untuk mengetahui kualitas instrumen tes diagnostik pilihan ganda four tier dan tingkat miskonsepsi peserta didik. Metode penelitian yang digunakan yaitu research and development (R&D). Populasi dalam penelitian ini adalah peserta didik kelas IX MTs Negeri 2 Aceh Besar. Jumlah sampel terdiri 112 peserta didik pada kelompok A, masing-masing kelas terdiri dari 16 peserta didik di masa pandemi Covid-19. Instrumen penelitian yang digunakan yaitu soal tes diagnostik pilihan ganda four tier. Teknik analisis data pada uji validasi diperoleh nilai koefesien Aiken’s V tinggi dan valid. Hasil dari segi analisis butir soal secara kuantitatif diperoleh validitas soal 75% soal valid dan 15% tidak valid, uji reliabilitas sebesar 0,786 kategori tinggi. Taraf kesulitan soal mencakup 85% soal terlalu mudah dan 15% soal mudah. Daya beda soal diperoleh setiap kategorinya yaitu 5% baik sekali, 55% baik, 20% cukup dan 20% jelek. Hasil tingkat miskonsepsi peserta didik dengan menggunakan tes diagnostik pilihan ganda  four tier diperoleh dari hasil analisis keseluruhan siswa dengan rata-rata 21,76% dan hasil analisis perbutir soal menunjukkan bahwa miskonsepsi siswa tertinggi terdapat pada soal nomor lima dengan persentase 11,6% dan terendah tedapat pada soal nomor empat dengan persentase 0%.
Research Trend of Socio Scientific Issues (SSI) in Physics Learning Through Bibliometric Analysis in 2011-2020 using Scopus Database and the Contribution of Indonesia
Authors: Deta Utama Alan , Arika Arika , Lentika Dhila Linggar , Al Lathifah Sayyidah Annimatus Sa’diyah , Suliyanah Suliyanah , Admoko Setyo , Suprapto Nadi
Published: October 2021

Socio-Scientific Issues (SSI) are controversial topics that have a scientific basis and important to society. This study aims to analyze the trends of SSI research publications from 2011-2020, visualize SSI research trends and how Indonesian researchers contribute to SSI research. This study was conducted on April 18, 2021, using bibliometric analysis. Data obtained is 225 data and taken by using Scopus database with "socio-scientific issues in physics" as the keyword from 2011 until 2020. After that, the data mapping was carried out using VOS Viewer software. Based on the result research, it can be concluded that the most topic in SSI research is related to scientific literacy, argumentation, and global warming. The visualization result shows that SSI has many effects on science learning, especially to improve argumentation skills. From 35 countries, Indonesia became the largest contribution research documents in SSI by placing two representative institutions: Universitas Pendidikan Indonesia and Universitas Negeri Yogyakarta. Indonesia also contributed the most prolific SSI writer, Widodo became the most prolific writer.
Analytical Study of Some Lightest Nuclei H, He, Li and Be
Authors: Hwash Waleed S. , Saeed Ahmed M.
Published: October 2021

In the present study, the properties of the light elements, namely, H, He, Li, and Be, have been reviewed. Specifically, the nuclear decay of these nuclei has been reviewed. The mystery of the nuclear decay and potential is behind this work. The role of neutron has been investigated. The N/Z ratio has also been investigated in the study to relate the nuclear decay with the ratio. A new formula for nuclear potential has been suggested in the present study. This formula can describe the binding energy potential and the decayed particle energy depending on the N/Z ratio.
Solving Some Fractional Partial Differential Equations by Invariant Subspace and Double Sumudu Transform Methods
Authors: Kadhem Hasan Shather , Hasan Sameer Qasim
Published: October 2021

In this paper, several types of space-time fractional partial differential equations has been solved by using most of special double linear integral transform ”double  Sumudu ”. Also, we are going to argue the truth of these solutions by another analytically method “invariant subspace method”. All results are illustrative numerically and graphically.
A mini-review on the different types of covid-19 vaccines in use
Authors: Athuraliya Gamacharige Kasuni Neranja  , Samamalee Upekshi Kankanamge
Published: October 2021

Novel Coronavirus (Covid-19) is an infectious disease caused by Severe Acute Respiratory Syndrome Corona Virus 2 (SARS-CoV-2). It is a new strain that is identified newly in humans, which was originated in China in 2019. This virus spread from an infected person’s mouth or nose upon coughing, sneezing, speaking, or breathing. This is an ongoing global pandemic which increases day by day. The only solution to decrease the fatality caused by COVID-19 is vaccination. Vaccines are of different types. Vaccines get differed depending on the approach in designing them. Inactivated, live attenuated, and viral vector vaccines are made up of the whole microbe approach. Subunit vaccines are made up of the subunit approach. Nucleic acid vaccines are made up of nucleic acids. The present review has attempted to reveal the different types of vaccines used against COVID-19.
Tight bounds on exploration of constantly connected cacti-paths
Authors: Ahmed Mouhamadou WADE
Published: October 2021

In this paper, we study the necessary and sufficient time to explore constantly connected dynamics graphs by a mobile entity (agent). A dynamic graph is constantly connected if for each time units, there exists a stable connected spanning tree [10]. We focus on the case where the underlying graph is a cactus-path (graph reduced to a path of k rings in which two neighbor rings have at most one vertex in common) and we assume that the agent knows the dynamics of the graph. We show that 5n - Θ(1) time units are necessary and sufficient to explore any constantly connected dynamic graph based on the cactus-path 〖Ch〗_(2,n) (composed of two same size ringsn). The upper bound is generalized on dynamic graphs based on cacti-paths with k rings. We show that for any constantly connected dynamic graph of size N based on a cactus-path, 4N -max{n_1,n_k} -3k -3 time units are sufficient to explore the graph, with k the length of the path, N=∑_(i=1)^k▒n_i -k+1 the size of the dynamic graph and n_i the size of the ring which is at position i starting from left to right.
Kesehatan Ibu Hamil
Authors: Q. Cita
Published: October 2021

Untuk mengetahui pentingnya asupan gizi terhadap ibu hamil.
A gender study of food stress and implications for international students acculturation
Authors: Vuong Quan-Hoang , Nguyen Minh-Hoang , Quang-Loc Nguyen , Nguyen Trung Quang , Le Tam-Tri
Published: October 2021

Acculturative stress can be a big problem for international students. Among all the difficulties they may face, adjusting to new foods in a new environment is crucial to their well-being. Research related to food acculturation is limited but also hints at gender differences. Using the Bayesian analysis approach with the Hamiltonian MCMC (Markov Chain Monte Carlo) technique on a sample of 268 students from a Japanese international university, we found that female students are more likely to have perceived difficulties in the process of adjusting to new foods, but social connectedness lessens this effect. We also found no significant differences between domestic and international students regarding perceived difficulties on food adjustment in this highly multicultural study site. We suggest international universities provide better information about the food situations on campuses, especially for female students, and organize more cultural exchange events and food-related social activities to help students overcome barriers of food stress.
90 DEGREE PHASE SHIFTER BASED ON A SQUARE WAVEGUIDE WITH DIAPHRAGMS
Authors: Piltyay Stepan
Published: October 2021

90 DEGREE PHASE SHIFTER BASED ON A SQUARE WAVEGUIDE WITH DIAPHRAGMS
The rise and fall of face recognition awareness across the lifespan
Authors: DeGutis Joseph , Yosef Bar , Lee Eunmyoung Alice , Saad Elyana , Arizpe Joseph , Song Jiyoon Stephanie , Wilmer Jeremy Bennet , Germine Laura , Esterman Michael
Published: October 2021

A core component of metacognition is cognitive awareness, the awareness of how one’s cognitive abilities compare to others. Previous studies of cognitive awareness have mainly focused on examining basic aspects of perception, memory, and learning. Further, studies into the awareness of one’s social cognitive abilities have been limited to examining awareness of others’ thinking (i.e., theory of mind). The goal of the current study was to characterize awareness of one’s own social cognitive abilities, specifically face recognition awareness, and to examine how this awareness changes across the lifespan. We used a large, web-based sample (N=4,143) with a broad age range (ages 10-70) performing well-validated measures of objective (Cambridge Face Memory Test 3, CFMT3) and self-reported (Cambridge Face Memory Questionnaire, CFMQ) face recognition. We found a robust overall association between objective and self-reported face recognition (i.e., face recognition awareness, r=0.42 in females, r=.36 in males). In contrast to face recognition ability that peaks in the early-to-mid 30s, our results demonstrate that face recognition awareness peaks in the early-to-mid 20s, is relatively stable throughout the 20s-40s, and declines in the 50s-60s. Relative bias measures of subjective vs. objective face recognition demonstrate that 10-18- and 51–70-year-olds tended to overestimate their self-reported face recognition abilities in comparison to individuals in the mid-years of life. Finally, we found that females had overall greater face recognition awareness compared to males while at the same time showing a bias to relatively underestimate their face recognition abilities compared to males. Together, this suggests that people generally have good insight into their face recognition abilities, especially between 20-50 years old, and that this insight is at least partially dissociable from face recognition ability.
IMPACT Measures Tool: Scoring Guidebook
Authors: Champagne Carly , Mattek Alison , Lin Grace , Fisher Philip , Barker Tyson
Published: October 2021

This document outlines how the four categories– cost, usability, cultural relevance (CR), and technical merit (TM)— assessment scores were calculated for the IMPACT Measures Tool. In our ongoing refinement of the IMPACT scoring system, we are continuously researching the information provided by measure developers so as to incorporate these details into how a measure is scored by our system.
Challenges of international social work research during the COVID-19 pandemic: Lessons learnt from a bilateral collaborative study
Authors: Higashida Masateru , Ranaweera Amarawansa
Published: October 2021

The COVID-19 pandemic, which has had a profound impact on people’s lives around the world, has also affected international social work practice and research on social issues. This article explores how international social work research can draw lessons from bilateral research collaborations during the COVID-19 pandemic. In May 2021, an international collaborative research project was commenced to examine the practical experiences of social workers in Sri Lanka, with the overall purpose of contributing to development of socio-culturally relevant social work training. Trial semi-structured interviews were conducted using remote tools with five social workers in government or private organisations. The narratives of the interviewees were qualitatively analysed to identify their personal backgrounds of social work education and practice, their experiences of working during the pandemic and their perspectives and values as social workers. Lessons learnt were discussed focussing on the objectives and perspectives of the study, the preliminary arrangements for the research, the methods and considerations. In a context where it is important for social work researchers to promote international studies during and after the COVID-19 pandemic, this paper provides an example of a feasible international cooperative study.
Reorganization of cerebellar cortex structural components one day after experimental thermal injury
Authors: Ohinska N. V.
Published: October 2021

Thermal injury is a lesion caused by thermal agents. With deep and large burns, the course of this type of injury becomes a general disease of the whole organism with the involvement of vital organs. The skin is the first to perceive the action of this exogenous factor, and secondarily there are changes in all body systems, in particular in the cerebellum. The aim of our study was to establish micro- and submicroscopic changes in the structural components of the cerebellar cortex one day after the experimental thermal injury. Simulation of experimental thermal injury was performed on white laboratory male rats. Grade III burns were applied under thiopental-sodium anesthesia with copper plates heated in boiled water to a temperature of 97-100°C. The size of the affected area was 18-20 % of the epilated body surface of rats. The cerebellum was collected after one day, further processing of the material for micro- and submicroscopic examination was performed according to accepted methods. Histological specimens were stained with methylene blue, and for electron microscopy the obtained ultrathin sections were contrasted with uranyl acetate and lead citrate according to the Reynolds method. At the micro- and submicroscopic levels, it was found that 1 day after the experimental thermal injury, reactive changes are observed in neurons, microcirculatory tract and glial cells. Thus, one day after the thermal trauma of the skin, the experimental animals showed the initial violations of the blood-brain barrier of the cerebellar cortex, which are adaptive-compensatory in nature. Initial, destructive, changes in neuro-glial-capillary relations, which occur primarily on their damage to the walls of hemocapillaries and are manifested by a violation of the micro- and ultrastructure of the main cells of the cerebellum – Purkinje, neurocytes of molecular and granular layers, neuroglyocytes, with peri-gliocyocytes were found.
البنية العاملية لمقياس اتجاهات طلبة جامعة تبوك نحو توظيف نظام إدارة التعلم الإلكتروني (بلاكبورد) في التعليم عن بُعد أثناء جائحة كورونا
Authors: خالد سليمان شاهر , موسى القاضي سناء
Published: October 2021

هدف البحث الحالي إلى التحقق من صدق البناء لمقياس اتجاهات طلبة جامعة تبوك نحو توظيف نظام إدارة التعلم الإلكتروني (بلاكبورد) في التعليم عن بُعد، والكشف عن اتجاهات الطلبة نحو توظيف النظام أثناء جائحة كورونا. باستخدام المنهج الوصفي التحليلي، وذلك ببناء مقياس اتجاه تكوَّن من (39) عبارة موزعة على ثلاثة أبعاد، هي: الاتجاه نحو طبيعة نظام (بلاكبورد) في التدريس الجامعي، استخدام الأستاذ الجامعي لنظام (بلاكبورد) في التدريس الجامعي، معوقات استخدام نظام (بلاكبورد) في التدريس الجامعي. وتكونت عينة الدراسة من (430) طالبًا وطالبة من طلبة جامعة تبوك. وأظهرت نتائج التحليل العاملي التوكيدي مؤشراتٍ مقبولةً لصدق البناء، كما أظهرت النتائج وجود اتجاه إيجابي لدى أفراد عينة البحث نحو طبيعة النظام، ونحو استخدام الأستاذ الجامعي للنظام، ووجود معوقات في استخدام النظام بدرجة متوسطة. وفي ضوء هذه النتائج قدَّم البحث مجموعة من التوصيات، أبرزها: العمل على زيادة الدعم الفني للطلاب، وإيجاد الحلول الكافية للمشكلات الفنية التي تواجههم عَبْرَ نظام (بلاكبورد).
Sandifer Syndrome: A Case Report
Authors: Shrestha Abhigan Babu , Rijal Prateet , Sapkota Unnat Hamal , Pokharel Pashupati , Shrestha Sajina
Published: October 2021

Sandifer syndrome is an extra oesophageal manifestation of gastrointestinal reflux disease that usually presents with torticollis and dystonia (often mimicking epilepsy). Here, we describe a case of a four and a half years old child with convulsion, neck contortion, and irritability. Gastrointestinal reflux disease was suspected on the earlier visit of the patient based on the presenting symptom of vomiting and cough. Electroencephalogram revealed normal findings. A barium meal radiograph was performed which was insignificant for gastrointestinal reflux disease and hiatal hernia. Complete blood count showed results suggestive of iron deficiency anaemia, while the rest of the biochemical parameters and the infection screening were normal. The case was confirmed by a medication trial for gastrointestinal reflux disease. This syndrome is often misdiagnosed as infantile seizure and musculoskeletal disorder. So, physicians need to have a sound knowledge of Sandifer Syndrome while assessing a child presenting with convulsion and torticollis.
Occipital Encephalocele with Multiple Birth Defects: A Case Report
Authors: Pyakhurel Bikash , Lamichhane Anita , Bhandari Bikash , Oli Navachandra , Lamichhane Somraj
Published: October 2021

A full-term female baby presented at 24 hours of life at the emergency department with occipital encephalocele, bilateral cleft lip, and cleft palate. She was born to a second gravida mother with no consanguinity between the parents. On examination, encephalocele was 10centimeters x 7centimeters in size with bilateral cleft lip and palate. It presents the opportunity for healthcare professionals to learn about a group of congenital neurological disorders in the content of a rare case presentation and highlights the importance of ultrasonography in the antenatal period for the detection of neural tube defects in the early stage for proper counselling and management. A compulsory prenatal diagnosis of the suspected family should be done by the intervention of the public sector of any country so that we can prevent and avoid abnormal birth.
Pneumonia in Patients with Chronic Kidney Disease Admitted to Nephrology Department of a Tertiary Care Center: A Descriptive Cross-sectional Study
Authors: Pant Abhishek , Prasai Astha , Rauniyar Anmol Kumar , Adhikary Laxman , Basnet Krity , Khadka Tunam
Published: October 2021

Introduction: Chronic Kidney Disease is an independent risk factor for pneumonia. The risk of hospitalization, Intensive Care Unit and ventilator requirement, in-hospital death is high in pneumonia patients with chronic kidney disease. This study aims to find the prevalence of pneumonia in patients with chronic kidney disease admitted to nephrology department of a tertiary care center.
Methods: A descriptive cross-sectional study was conducted among all the hospital records of pneumonia patients with Chronic Kidney Disease admitted to the Nephrology department between April 2019 and April 2021. Ethical clearance was obtained from the Institutional Review Committee of same institute (Reference number: 0505202106). Statistical Package for the Social Sciences version 20 was used for analysis. Point estimate at 95% Confidence Interval was calculated along with frequency and proportion for binary data.
Results: Of the total 407 patients with Chronic Kidney Disease, 78 (19.1%) (95% Confidence Interval= 15.28-22.92) had pneumonia. Among the 78 pneumonia patients, 17 (21.8%) were Stage 3, 13 (16.7%) Stage 4 and 48 (61.5%) Stage 5 of chronic kidney disease. Forty Seven (60.3%) required Intensive Care Unit (ICU), 19 (24.4%) required ventilator and 22 (28.2%) of the patient expired in hospital. The most commonly isolated organisms were Severe Acute Respiratory Syndrome Coronavirus 2 which was 13 (16.6%) followed by Strepotococcus pneumoniae which was 8 (10.2%).
Conclusions: The prevalence of pneumonia in Chronic Kidney Disease was observed higher in our study compared to other studies.
GAMBARAN TINGKAT LITERASI KESEHATAN MENTAL PADA PESERTA DIDIK SEKOLAH MENENGAH PERTAMA
Authors: HANDAYANI RISKA , WAHYUNI EKA , MARJO HAPPY KARLINA
Published: October 2021

Mental health is an important component that is closely related to social life, productivity, peace and stability in the environment, contributing to sosial life and economic development in Indonesian society. Mental health literacy is knowledge and beliefs about mental disorders that help to recognize, manage and prevent a person’s mental disorder. Mental helath literacy is also knowledge related to actions to provide mental helath benefits to individuals and others. Mental helath literacy is the ability to gain knowledge or information about mental health for adolescents, understand and can maintain good mental health. Mental health literacy includes the ability to recognize specific mental health disorders, knowing how to seek mental health information, knowledge of risks and causes of health disorders. The aim of this study is to improve mental health literacy in students and meet the criteria for eligibility aspects. This study used Reeves Design Based Research model. The subjects in this study were students of class IX SMP Negeri 2 Kramatwatu. Collecting data using a questionnaire, in the form of an adaption instrument from a mental helath literacy question (MHLq). The results of this study indicate the level of mental health literacy in students obtained a value of 49% which is included in the moderate category.
PENGETAHUAN DAN UPAYA KONSERVASI KAYU SOWANG (Xanthostemon sp.) MASYARAKAT KAMPUNG DOYO LAMA DAN KAMPUNG HARAPAN PADA KAWASAN CAGAR ALAM PEGUNUNGAN CYCLOOP
Authors: AISOI LEONARDO ELISA
Published: October 2021

This research was conducted to determine the knowledge and conservation efforts of the people of Doyo Lama villageand Harapanvillage. The research was carried out for three months, namely, from July to September 2020, using the observation method; interview method; documentation method; and literature study methods, and analyzed descriptively qualitatively. The results showed that knowledge about sowang wood (Xanthostemon sp.), is a traditional knowledge passed down from generation to generation orally. The people of Doyo Lama village call sowang by the name toang (meaning hard and strong), and Harapan village named howan(meaning wood that is durable and not easily weathered). The people of Doyo Lamavillage know two species of sowang wood, namely broad-leaved species and small-leaved species. The people ofHarapan villagealso recognize two species, namely the red-flowered species and the yellow-flowered species. The broad-leaved species and the red-flowered species are Xanthostemonnovoguineensis species. While the species with small leaves and yellow flowers are Xanthostemonpapuanus. Traditional knowledge and use of sowang wood by the people of Doyo Lama villageand Harapanvillage is decreasing, influenced by the development of modern life, because until now there have been no efforts and conservation activities for sowang wood in the two villages and there has been a shift in cultural values from traditional be modern. While the species with small leaves and yellow flowers are Xanthostemonpapuanus. Traditional knowledge and use of sowang wood by the people of Doyo Lama villageand Harapanvillage is decreasing, influenced by the development of modern life, because until now there have been no efforts and conservation activities for sowang wood in the two villages and there has been a shift in cultural values from traditional be modern. While the species with small leaves and yellow flowers are Xanthostemonpapuanus. Traditional knowledge and use of sowang wood by the people of Doyo Lama villageand Harapan villageis decreasing, influenced by the development of modern life, because until now there have been no efforts and conservation activities for sowang wood in the two villages and there has been a shift in cultural values from traditional be modern
Creating a Device for the Correction of Psycho-Emotional State of People
Authors:   Central Ukrainian National Technical University, Shchiepin Valerii , Trushakov Dmytro ,   Central Ukrainian National Technical University, Sirikov Oleksandr ,   Central Ukrainian National Technical University
Published: October 2021

The article is devoted to the process of correction (improvement) of a person's psycho-emotional state by creating an electronic device that emits multicolored light effects. The set of researches carried out in the work represents the solved problems in the field of creation of electronic devices for medical purposes. On the basis of the analysis of existing devices, an own design of an electronic device is proposed, based on the emission of various light effects, which allows you to correct the psychoemotional state of a person. A working model of an electronic device has been manufactured, it emits multi-colored light effects, and also measures the main parameters of the environment - temperature, humidity and pressure. Experimental clinical studies of the manufactured device were conducted in the hospital of the Regional Clinical Psychiatric Hospital of the Kirovohrad Regional Council. Experimental clinical studies of the manufactured device were performed by taking encephalograms of the brain. Obtained positive results, confirming the ability of this device to improve the psycho-emotional state of a person.
Analysis of Indicators of Sustainable Development Urban Passenger Transport System
Authors:   National University of Water and Environmental Engineering, Rivne, Ukraine, Krystopchuk Mykhailo
Published: October 2021

Establishing the main attributes of population mobility is one of the most important indicators of urban development, which has been studied by domestic and foreign scientists for use in the practice of urban transport planning and the development of sustainable transport systems. Mobility characteristics are also an important source and result for the development of changes in the city master plan and the creation of new management decisions in the operation and operation of the route network of urban passenger transport. However, at the present stage of implementation of transport studies of urban population movement requires consideration of indicators of sustainable development of urban transport systems. In this regard, a study of the functioning of the passenger transport system of public transport in the city of Rivne in terms of the development of the principles of sustainable urban mobility. The use of the system of indicators of sustainable development of urban passenger transport system allows to assess the current situation in the city and outline promising areas for improving the public transport system in conjunction with the spatial development of urban areas to ensure comfortable movement of residents to meet labor and cultural movements. The questionnaire "Study of mobility of the population in the city of Rivne" was used as initial data for definition of indicative indicators of functioning of passenger transport system of public transport of the city of Rivne, in the context of its sustainable development. Three indicative parameters are taken into account, namely: the indicator of access to mobility services, the indicator of the possibility of active mobility and the indicator of the level of satisfaction with public transport. Based on the calculated values of indicative indicators, it can be argued that some indicators of sustainable urban mobility for the city of Rivne are of mediocre importance. This indicates the need to develop strategic measures to improve the city's public passenger transport system in conjunction with its spatial development to increase the comfort of movement of residents of all groups.
Investigation of the Structure of a Servotic Film on the Surface of Friction with Fullerene Compositions
Authors:   Kharkiv Petro Vasylenko National Technical University of Agriculture, Kharkiv, Ukraine, Кravtsov Andrii
Published: October 2021

The paper presents the experimental results of the study of friction surfaces without the use and when using a fullerene composition in a lubricant. It is shown that the parameters of the microrelief profile and the roughness of the friction surfaces after application of the fullerene composition in the lubricant differ significantly. The thickness of the lubricating film affects the amount of working roughness Ra and Sm due to the formation of "cross-linked structures" of micelles and clusters, which are held on the friction surface by electrostatic interaction. Such structures "align" the friction surface by reducing the arithmetic mean deviation of the profile points Ra and increasing the average pitch of the inequalities along the midline of the profile Sm. The results of the Fourier analysis, which allow us to state that the use of a fullerene composition leads to a decrease in the main stress vector in both steel and bronze triboelements in accordance with the vector of the sliding direction. When using the fullerene composition, the level of anisotropy of the subblocks of the structure increases significantly, almost 2 times, which indicates the transition of the tribosystem to a new, higher level of self-organization. After chemical analysis of the friction surfaces using a fullerene composition, it was found that on the friction surface there is a structure with a high carbon content. This result confirms the working hypothesis that it is a "crosslinked" structure of micelles, where the nucleus of the micelle is a molecule, or several molecules of fullerene, to which are attached molecules of oleic acid solvent. This conclusion is confirmed by the increase in the percentage of carbon C = 24,3…29,2 %, while reducing the percentage of oxygen from 18,4 % to 7,4 %. The latter chemical elements remain almost unchanged. This result allows us to conclude that a structure is formed on the friction surface, which contains the chemical element carbon, the ratio of which significantly exceeds other chemical elements.
Predicting and Managing Reliability in the Application of Safety Devices with Deterministic Tripping Load
Authors:   Vasylenko National Technical University of AgricultureKharkovUkraine, Kharkiv, Ukraine, Alfyorov Aleksey , Grynchenko Oleksander ,   Vasylenko National Technical University of AgricultureKharkovUkraine, Kharkiv, Ukraine
Published: October 2021

Reliability prediction of machinery parts being designed is primarily aimed at avoiding mechanical failures in service, caused by the influence of force mechanical interaction of parts among themselves and with the environment. Special attention should be given to sudden mechanical failures due to the fact that their development, unlike gradual failures, as a rule, does not lend itself to individual diagnosis and prevention. In addition, as practice shows, sudden failures can often occur in the initial operation period of the equipment, which adversely affects its competitiveness when it is introduced to the market. Most transport, agricultural, road-building and other mobile machines has operating conditions, use modes, and, therefore, modes of mechanical loads of elements with a wide range of variation. Most time, a machine normally operates under normal (nominal) load conditions, whereby long-term performance and durability should be provided. However, in some relatively rare cases, some parts of machines experience short-term and repeatedly repeated effects of extreme loads close to breaking or inelastic material deforming material details. The book is devoted to a brief review of the fundamentals of one of the many directions of science of reliability - predicting risks of sudden mechanical failures and associated reliability indicators. The safety factor is a generalized parameter which in many respects determines the future material consumption and the cost price of the designed product. Therefore, dependencies linking the safety factors of the machine parts with the predicted reliability indexes allows, at the design stage, to choose a rational and economically feasible option to ensure a sufficient level of reliability. The same concerns justification for tusing safety devices that provide mechanical reliability. Therefore, the use of a set of methods for forecasting and managing reliability stated in the book should improve the efficiency of work related to the design of engineering products. The above reliability models of elements and systems protected from repeated impact of overloads by means of a safeguard with a nearly constant actuation load can serve as a theoretical basis when being designed and during modernization of machinery elements to manage reliability rationally.
Technologies for Distance Education in Ukraine
Authors:   Central Ukrainian National Technical University, Holyk Olena , Kalich Viktor ,   Central Ukrainian National Technical University, Zhesan Roman ,   Central Ukrainian National Technical University, Volkov Ihor ,   Central Ukrainian National Technical University
Published: October 2021

To prevent the spread of coronavirus infection, educational institutions from time to time switch to distance learning. The article reviews the ways of organizing distance learning in Ukraine, existing technologies for distance learning, electronic resources, and educational platforms. The most common web services for online learning are considered. The advantages and disadvantages of distance learning in the conditions of classical education are determined. As a result, it was found that the disadvantages outweigh the advantages, which significantly affects the quality of education as a whole. The main disadvantages: the low level of digital literacy, insufficient control over the acquisition of knowledge, and lack of social interaction between peers. Despite these shortcomings, the organization of distance learning by the Ministry of Education and Science of Ukraine and educational institutions is performed at a sufficient level. However, this process needs to be improved in terms of privacy, data protection and digital literacy. To address the lack of proper parental control, it is proposed at the state level to provide parents with the opportunity to be present directly during their children's distance learning, while being able to maintain their jobs and wages.