bluuebunny/crossref_metadata_2025 huggingface dataset:
PERANCANGAN MEDIA PEMBELAJARAN INTERAKTIF VIRTUAL REALITY PADA MATA KULIAH TEKNOLOGI PEMESINAN DI JURUSAN TEKNIK MESIN FT - UNP
Authors: Yosfiah Muhammad Al Fath , Primawati Primawati , Waskito Waskito , Prasetya Febri
Published: June 2022

Media menjadi salah satu fasilitas pendukung pada jalannya proses pembelajaran pada bidang Kuliah Teknologi Pemesinan sulit dimengerti karena mahasiswa belum mengetahui cara menggunakan mesin bubut selama masa pandemi Covid-19 Kerena di situasi ini semua pembelajaran di tingkat perguruan tinggi dan sekolah melalui proses daring. Pada observasi ini memiliki tujuan untuk menghasilkan media pembelajaran yang dapat dipakai untuk mahasiswa angkatan 2020 Jurusan Teknik Mesin FT-UNP pada bidang studi Teknologi Pemesinan dengan memakai media interaktif Virtual Reality. Metoda yang dipakai ialah Research and Development serta memakai jenis eskalasi Plomp. Penelitian ini dilaksanakan di Jurusan Teknik Mesin FT-UNP Pada Semester Juli–Desember 2021. Subjek penelitian ini adalah 60 orang Mahasiswa Angkatan Masuk 2020 Jurusan Teknik Mesin FT-UNP. Observasi yang dilakukan validasi ahli media tentang pelaksanaan aplikasi Virtual Reality untuk Bidang studi Teknologi Pemesinan menyatakan nilai perolehan yang diperoleh yaitu 95,29% yang menyatakan sangat valid. Observasi dilakukan validasi ahli materi tentang pelaksanan aplikasi Virtual Reality menyatakan nilai perolehan yang diperoleh yaitu 83,5% yang menyatakan telah valid. Obeservasi praktikalitas yang dilakukan salah satu dosen tentang pelaksanaan aplikasi Virtual Reality pada bidang kuliah yang diriset ialah 80% yang menyatakan bahwa aplikasi Virtual Reality telah praktis. Observasi Penataan applikasi Virtual Reallity pada Bidang Studi yang sedang diriset tersebut di Jurusan Teknik Mesin FT-UNP dari 60 responden, menyatakan jumlah perolehan yaitu 84,93% yang dapat dinyatakan bahwa anggapan siswa tentaang penerapan Virtual Reallity dalam proses studi khususnya yaitu mata kuliah Teknologi Pemesinan yang menyaatakkan telah Efektif untuk dipakai.
PENERAPAN MODEL PEMBELAJARAN BLENDED LEARNING UNTUK MENINGKATKAN KREATIVITAS DAN HASIL BELAJAR SISWA DI SMK NEGERI 2 SAWAHLUNTO
Authors: Handrianto Handrianto , Ambiyar Ambiyar , Syahril Syahril , Fernanda Yolli
Published: June 2022

Penelitian ini mendeskripsikan mengenai diterapkannya model Blended Learning di mata pelajaran Pekerjaan Dasar Teknik Mesin (PDTM) untuk meningkatkan kreativitas dan hasil belajar siswa. Karena selama pengamatan peneliti semasa PLK di SMK 2 Sawahlunto, pembelajaran cenderung kaku dan kurangnya variasi dalam model pembelajaran. Metode yang dipakai yakni Penelitian Tindakan Kelas (PTK)). Pelaksanaan penelitian ini berpusat kepada penerapan model Blended Learning pada kelas X Teknik Pemesinan 3 di SMK Negeri 2 Sawahlunto dengan subjek penelitian sebanyak 27 siswa. Berdasarkan data yang diperoleh, persentase kreativitas belajar siswa pada siklus I sebesar 60,03%, meningkat di siklus0II menjadi 80,2% dengan kategori tercapai. Peningkatan hasil belajar juga terjadi peningkatan, siklus I klasikal yang didapat ialah 66,6%, dan pada siklus II meningkat sebesar 84,3% yang dikategorikan tercapai. Dilihat dari hasil pengamatan yang dilakukan sebelum tindakan, permasalahan yang ditemukan sesuai dengan pengamatan peneliti ketika PLK kurangnya minat belajar dan hasil belajar siswa yang belum tercapai KKM, untuk mengatasi permasalahan tersebut peneliti mencoba pengenalan model pembelajaran Blended Learning. Dengan harapan  bisa dijadikan acuan dalam meningkatkan kreativitas dan hasil belajar untuk mata pelajaran Pekerjaan Dasar Teknik Mesin (PDTM) di kelas X Teknik Pemesinan 3 SMK Negeri 2 Sawahlunto. Sehingga diartikan dengan menerapkanomodel pembelajaran Blended Learning dapat meningkatkan kreativitas dan hasil belajar siswa.
KORELASI ANTARA NILAI UJIAN TENGAH SEMESTER (UTS) DENGAN KEPUASAN BELAJAR PADA MATA PELAJARAN PRODUKTIF DI SMK NEGERI 1 TANJUNG RAYA
Authors: Candra Erwin , Waskito Waskito , Rifelino Rifelino , Prasetya Febri
Published: June 2022

Pembelajaran yang dilaksanakan di SMK N 1 Tanjung Raya memiliki permasalahan karena banyaknya kepuasan belajar yang tidak didapat oleh siswa dari nilai UTS. Tujuan penelitian ini yaitu melihat korelasi antara nilai UTS dengan kepuasan belajar pada mata pelajaran produktif. Pada penelittian ini menggunakan metode deskriptif kuantitatif yang bersifat korelasional dengan populasi sebanyak 49 orang. Sampel diambil dengan teknik total sampling dengan sampel berjumlah sama dari populasi.Uji hipotesis, didapat bahwa nilai sig (2-tailed) lebih < 0,05 artinya antara variable x dan variable y berkorelasi positif. Dimana nilai interpretasi koefisien korelasi pada mata pelajaran dengan tingkat korelasi sedang dan rendah. Berdasarkan hipotesis tersebut, maka hipotesis Ha yang berbunyi “Terdapat Korelasi Positif dan Signifikansi Antara  Nilai UTS dengan Kepuasan Belajar pada Mata Pelajaran Produktif di SMKN 1 Tanjung Raya” diterima. Data yang didapatkan setelah dilakukan analisis korelasi antara nilai UTS dengan kepuasan belajar pada mata pelajaran  produktif rata-rata/mean kepuasan belajar siswa kelas XI SMK Negeri 1 Tanjung Raya adalah 112,76.Berdasarkan hasil penelitian dan pembahasan, maka dapat ditarik beberapa kesimpulan sebagai berikut, terdapat hubungan positif dan Signifikansi yang bisa dilihat pada hasil out pout SPSS pada baris Sig (2-tailed). korelasi dua variabel signifikan baik dengan taraf  0,05, dari angka koefisien korelasi didapatkan  hasil data > 0,05. Sehingga dapat dinyatakan memiliki korelasi yang signitifikan atau meyakinkan.
KONTRIBUSI KEMANDIRIAN TERHADAP HASIL BELAJAR MAHASISWA PENDIDIKAN TEKNIK MESIN FT-UNP ANGKATAN 2018 PADA MATA KULIAH TEKNOLOGI PENGELASAN LOGAM
Authors: Rahman Bima Aditia , Purwantono Purwantono , Irzal Irzal , Rahim Bulkia
Published: June 2022

Masih adanya mahasiswa yang kurang serius saat mengikuti perkuliahan serta sedikitnya minat juga motivasi untuk mendapatkan hasil belajar yang optimal, ini mencerminkan bahwa kurangnya kemandirian mahasiswa dalam mengikuti perkuliahan. Masih terdapat mahasiswa yang datang tidak tepat waktu dalam mengikuti perkuliahan. Tujuan Penelitian ini mengungkapkan seberapa besar kontribusi kemandirian terhadap hasil belajar mahasiswa Pendidikan Teknik Mesin angkatan 2018 pada mata kuliah Teknologi Pengelasan Logam. Metode penelitian ini adalah penelitian deskriptif, ialah riset yang diartikan buat mengumpulkan data menimpa status sesuatu indikasi yang terdapat serta gejala yang ditemukan pada dikala riset dilakukan. Riset dicoba di tempat Jurusan Teknik Mesin Fakultas Teknik Universitas Negeri Padang yang berlokasi di Jl. Prof. Dr. Hamka No. 1, Air Tawar Barat, Padang Utara, Kota Padang. Riset dilaksanakanan saat Semester Januari – Juni 2021 dengan jumlah populasi dengan total populasi 76 mahasiswa dan sample 43 mahasiswa. Hasil penelitian untuk menguji kontribusi antara kemandirian terhadap hasil belajar mahasiswa Pendidikan Teknik Mesin angkatan 2018 pada mata kuliah Teknologi Pengelasan Logam menggunakan uji Validitas serta Reliabilitas diolah dengan software SPSS. Hasil akhir peniltian ini memiliki besar kontribusi antara kemandirian terhadap hasil belajar mahasiswa Pendidikan Teknik Mesin angkatan 2018 pada mata kuliah Teknologi Pengelasan Logam sebanyak 10.43% pada kategori rendah dan 89,57% terdapat faktor lain nan mempengaruhi hasil belajar. Secara keseluruhan bisa disimpulkan terdapat kontribusi antara kemandirian terhadap hasil belajar mahasiswa Pendidikan Teknik Mesin angkatan 2018 pada mata kuliah Teknologi Pengelasan Logam sebesar 10.43%.
TINJAUAN INDIKATOR POSITIF PEMBELAJARAN ONLINE PADA MATA PELAJARAN TEKNIK PEMESINAN BUBUT KELAS XII SMK NEGERI 2 PEKANBARU
Authors: Chaniago Yogi Refvan , Syahri Budi , Refdinal Refdinal , Wulansari Rizky Ema
Published: June 2022

Peneliti telah melakuakan observasi pada Praktek Lapangan Kependidikan di SMK Negeri 2 Pekanbaru pada semester ganjil Juni–Desember tahun ajaran 2020/2021 pada Mata pelajaran Teknik Pemesinan Bubut. Pada Kurikulum 2013 Pemerintah Menetapkan untuk Pembelajaran Sekolah Menenga Kejuruan, 70% praktek dan 30% teori.Tetapi Pembelajaran Teknik Pemesinan Bubut dilakukan secara online tentu kemampuan siswa untuk melakukan Praktek menjadi tidak efesien. Pelajaran yang seharusnya di lakukan secara tatap muka, kini berubah menjadi online, yang mengharuskan siswa memahami pelajaran tersebut tanpa ada praktek dilapangan. Sehingga kemampuan siswa pada praktikum Teknik Pemesinan Bubut tergolong rendah. Tujuan penelitian ini melihat Dampak Pembelajaran online pada Mata Pelajaran Teknik Pemesinan Bubut kelas XII SMK Negeri 2 Pekanbaru. Metode yang dipakai pada penelitian ini yaitu metode Deskritif Kuantitatif. Teknik ananlisi data dalam penelitian ini yaitu dengan ananlisi data deskritif kuantitatif. Berdasarkan data diketaui bahwa jumlah populasi 69 siswa. Analisis data penelitian yang dilaksanakan terhadap 69 responden, yang memiliki 32 butir soal dari 8 item menunjukkan bahwa rata-rata indikator tentang tinjauan pembelajaran online 1401,49 ( 43,80% ) atau mean indikator 22,9 ( 23,04% ) dengan ketegori sedang. Dapat disimpulkan bahwa Tinjauan Pembelajaran Online dapat diketegorikan sedang. Hal ini menunjukan bahwa hal-hal atau kondisi yang banyak mempengaruhi siswa SMK Negeri 2 Pekanbaru untuk Pembelajaran Online. Siswa sedikit antusias untuk mengikuti kegiatan pembelajaran daring di Jurusan Teknik Pemesinan, Sehingga minat belajar bukanlah faktor utama yang menyebabkan timbulnya sikap negatif dari siswa pada saat proses pembelajaran online.
Mobile Application: Learning Basic Mathematics Operation using Augmented Reality
Authors: Nasrudin Nur Hasni , Mohamad Hatta Mohamad Harith Azfar , Azmi Anis Zafirah , Ahmad Junid Rosida
Published: June 2022

At school, students must learn mathematics not only as a formality to participate in exams, but also to use their mathematical knowledge to solve problems in their daily lives. When students deal with numerical information, they tend to have a negative feeling or fear, and this is known as mathematical anxiety. The aim of the project is to develop a mobile application that integrates augmented reality technology into mathematical education and to evaluate the technological acceptance of the mobile application. This mobile app is reviewed and tested by 23 end users, most of whom are educators and parents. The technique to achieve the objective is to use the Acceptance Model Questionnaire (TAM). In the technology acceptance model there are three sections that are perceived as useful, user-friendly and intended for use. Based on the results, it can be concluded that the three technology acceptance sections are acceptable and that educators and parents are satisfied with it. For future work, the research recommends adding a variety of exercises with diversifying forms of questions with answers in the mobile application. It is further recommended that the augmented reality output to implement a 3D modeling design to project a better virtual images.
Open and Distance Learning during Malaysian Movement Control Order 2020: Reflections from University Students
Authors:   Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA, Perak Branch, Tapah Campus, Perak, Malaysia., Abdol Razak Fadzilah , Ismail Nor Rashidah Paujah ,   Faculty of Computer and Mathematical Sciences, Universiti Teknologi MARA, Perak Branch, Tapah Campus, Perak, Malaysia.
Published: June 2022

The Coronavirus disease 2019 (COVID-19) outbreak has prompted universities in Malaysia to take a step to implement online teaching and learning in line with the instruction of the Ministry of Higher Education not to conduct face-to-face lectures but to take advantage of Online and Distance Learning (ODL) method starting from April 2020. Since this instruction needs to be implemented immediately, the question arises as to whether students are ready to pursue their studies remotely. Hence, the purpose of this study is to determine the readiness of university students to continue their studies using the ODL method. The study also aims to investigate students’ reflection after completing the ODL process and to list the factors that contribute to the student’s survival in the ODL courses. This study utilized both qualitative and quantitative methods to analyze the data obtained. Key findings revealed that reflection of students towards the implementation of ODL can be categorized into three main categories which are positive, negative and neutral reflections. Overall, negative reflections given by the students can be categorized into four main issues which are adaptability struggle, unconducive learning environment, lack of readiness for self-directed learning and technical issues. Among the four issues, adaptability struggle is the major concern for students as 55.2% of students remarked the ODL as difficult, hard, tough and stressful especially for a course that involved calculation. The outcomes from the study suggest that many students are still in the process of adapting to the implementation of ODL. Even after experiencing the ODL, 30.3% of the students still prefer the traditional face-to-face learning compared to the ODL method. The lecturers and university administration should motivate students on the implementation of ODL and work to solve the four main issues raised by students if they want this method to be implemented successfully in the future.
Planning and designing green infrastructure across landscapes and scales
Authors: Tóth Attila
Published: June 2022

Planning and designing sustainable, resilient, and healthy landscapes, cities and communities is anchored in the 2030 Agenda for Sustainable Development adopted by the General Assembly of the United Nations in 2015. Current European strategies, such as the EU Green Infrastructure Strategy, the European Green Deal, the EU Strategy on Adaptation to Climate Change, the EU Biodiversity Strategy for 2030 and other related policy and strategic documents all recognise green infrastructure and nature-based solutions as important planning approaches, as well as design and implementation tools in urban areas and landscapes. This issue of Acta Horticulturae et Regiotecturae is dedicated to landscape architecture, landscape planning and green infrastructure at various scales and in diverse landscape settings. It provides original research findings from Chinese, Croatian, Latvian, Nigerian, Polish, Slovak, and Ukrainian cities and metropolitan regions. The issue deals with regional landscape specificities and qualities and shows examples of urban green infrastructure planning and design both at holistic and site-specific scales. At the local scale, it is highly important to involve and engage the public from the very beginning of the planning and design process. This issue introduces various experiences and empirical findings generated by local participatory and co-design actions. The articles show a wide range of ecosystem services provided by green infrastructure and its elements, while also mentioning some of possible ecosystem disservices.
Analysis of green infrastructure and nature-based solutions in Warsaw – selected aspects for planning urban space
Authors: Pochodyła Ewelina , Jaszczak Agnieszka , Illes Juraj , Kristianova Katarina , Joklova Viera
Published: June 2022

Analysis of urban green infrastructure is used to identify the concepts of its planning, implementation, and management at the level of the whole city as well as its individual parts. Green infrastructure, as a planned network of natural and semi-natural elements in cities, delivers a wide range of ecosystem services and improves urban environmental conditions. Planning the network of green infrastructure becomes a standard part of urban and spatial planning. Implementation strategies of green infrastructure in urban environment include applications of new specific elements and nature-based solutions. Green infrastructure research covers a wide range of topics. Our research focuses on the selected aspects of spatial analysis of green infrastructure in the city of Warsaw: distribution of main public green areas at the urban scale – forests and parks in the urban fabric, the forms of their protection, the use of linear elements of green infrastructure along communication routes, and the implementation of new elements of nature-based solutions in the urban environment – green roofs, green facades, and rain gardens. Based on the analysis of the studied selected aspects, recommendations were formulated for strengthening the interconnectivity of the green infrastructure system at an urban scale and implementation of new green infrastructure elements and in the intensively built-up districts where the number and size of green areas are insufficient.
Employers’ Assessment of Graduates’ Utilization of Employability Skills: Influence on Organizational Growth and Sustainable Development in Nigeria
Authors: Mary Agboola Bolapeju
Published: June 2022

The study determined how employers’ assessment of graduates’ utilization of employability skills influences organizational growth and sustainable development in Nigeria. The design was ex-post facto with a population of 42 registered business organisations in Nigeria. Thirty-five organisation employers and 492 graduate employees were sampled through multistage techniques. Data were collected with “Employers’ Assessment of Graduates’ Employability Skills Utilization Questionnaire” (EAGESUQ) and “Sustainable Development University Education for Graduates’ Skills Acquisition Questionnaire (SUDUEFGSAQ). Validated EAGESAQ and SUDUEFGSAQ were tested for reliability using Cronbach alpha statistic yielded reliability coefficients of 0.94 and 0.89 respectively. Inferential statistics were used for data analysis. The findings and conclusion showed that graduates skills, gender and fields of specialization significantly influence organization growth and sustainable development in Nigeria. Recommendations include: government agencies need to review university programmes and curriculum in line with labour market required skills; they need to monitor the implementation of internship for students and on-the-job-training of new graduate employees.
Involvement in the Democratic Life in Europe: A Study on Views and Vision of Youth in Latvia
Authors: Jonāne Lolita , Iliško Dzintra , Fjodorova Ilona , Antoņeviča Līga
Published: June 2022

Currently, the educational system in Latvia is undergoing a transition from a traditional to a competence-based curriculum where civic education plays an important place in pupils’ holistic development. In the context of strengthening civic education, it is important to gain experience in practising citizenship in order to promote the active participation and co-responsibility of young people in social and political processes in the country and beyond. The study focuses on the factors that influence the formation of young Latvian people’s civic identity and the role of formal education and their teachers in this process in a broader sustainability context.

The article reflects the results of a study about Latvian youngsters’ involvement in political activities, their attitude and interest about political events in Latvia and the European Union.
Improved Assessment of the Accuracy of Record Linkage via an Extended MaCSim Approach
Authors: Haque Shovanur , Mengersen Kerrie
Published: June 2022

Record linkage is the process of bringing together the same entity from overlapping data sources while removing duplicates. Huge amounts of data are now being collected by public or private organizations as well as by researchers and individuals. Linking and analysing relevant information from this massive data reservoir can provide new insights into society. It has become increasingly important to have effective and efficient methods for linking data from different sources. Therefore, it becomes necessary to assess the ability of a linking method to achieve high accuracy or to compare between methods with respect to accuracy. In this article, we improve on a Markov Chain based Monte Carlo simulation approach (MaCSim) for assessing a linking method. The improvement proposed here involves calculation of a similarity weight for every linking variable value for each record pair, which allows partial agreement of the linking variable values. To assess the accuracy of the linking method, correctly linked proportions are investigated for each record. The extended MaCSim approach is illustrated using a synthetic data set provided by the Australian Bureau of Statistics based on realistic data settings. Test results show high accuracy of the assessment of the linkages.
Iterative Kernel Density Estimation Applied to Grouped Data: Estimating Poverty and Inequality Indicators from the German Microcensus
Authors: Walter Paul , Groß Marcus , Schmid Timo , Weimer Katja
Published: June 2022

The estimation of poverty and inequality indicators based on survey data is trivial as long as the variable of interest (e.g., income or consumption) is measured on a metric scale. However, estimation is not directly possible, using standard formulas, when the income variable is grouped due to confidentiality constraints or in order to decrease item nonresponse. We propose an iterative kernel density algorithm that generates metric pseudo samples from the grouped variable for the estimation of indicators. The corresponding standard errors are estimated by a non-parametric bootstrap that accounts for the additional uncertainty due to the grouping. The algorithm enables the use of survey weights and household equivalence scales. The proposed method is applied to the German Microcensus for estimating the regional distribution of poverty and inequality in Germany.
Municipal Solid Waste Management in the Czech Republic and in Slovakia
Authors: Meričková Beáta Mikušová , Soukopová Jana , Šumpíková Markéta , Křápek Milan
Published: June 2022

Contracting waste management services is one of the most commonly used approaches to the delivery of this service and this topic is clearly in the focus of frequent academic research.

The goal of this article is to examine trends in the area of solid waste collection and disposal on the municipal level for the Czech Republic and Slovakia in terms of developments over the past 20 years with a focus on the share of inter-municipal cooperation in the delivery of this service. In contrast to Western European countries, which are undergoing re-municipalization, the data obtained for Slovakia and the Czech Republic over 20 years show that the municipal solid waste management service is dominated by contracting, which has increased over the examined period. This fact is apparently a reflection of the high rate of fragmentation in municipal structures and the low willingness among municipalities to cooperate. The data obtained also indicate that using external suppliers seems to bring marginal savings that could certainly be substantially larger; potential increases in efficiency via contracting are unequivocally limited by the low quality of contract management. Regarding our core question, we found that the proportion of inter-municipal cooperation between service delivery modes did not significantly increase during the investigated period. The experts interviewed almost uniformly agreed on three critical limits related to the issue of inter-municipal cooperation in MSW management delivery – transaction costs of different types, non-existent regular comparisons of best solutions, and limited motivation to select optimal service delivery modes.
Analysis of import flows of the Republic of Kyrgyzstan from the EAEU countries using a gravitational model
Authors: Tsvil Maria Mikhailovna , Kusaya Ariana Olegovna
Published: June 2022

The purpose of the study is to identify quantitative and qualitative factors affecting the import flows of the Republic of Kyrgyzstan from the EAEU member states using gravity modeling. The article analyzes the identification of quantitative and qualitative factors that affect the value of import trade flows of the Republic of Kyrgyzstan from the EAEU member countries. The research toolkit is H. Linnemann's gravitational model. Gravity models of import trade flows of the Republic of Kyrgyzstan with each EAEU member country have been built. The comparative characteristics of the identified quantitative factors are given. The forecast valuesfor 2021-2023 of the value of import trade flows of the Republic of Kyrgyzstan from the EAEU member countries have been made.
Fat as an Adjunct in Nerve Surgery
Authors:   The University Of Texas Rio Grande Valley School Of Medicine, Edinburg, TX, 78541, United States, Podsednik Allison , Cabrejo Raysa ,   Department Of Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, NH 03766, United States, Rosen Joseph ,   Department Of Surgery, Dartmouth-Hitchcock Medical Center, Lebanon, NH 03766, United States
Published: June 2022

Peripheral nerve surgery involves suturing an injured nerve to itself or to another nerve end-to-end or side-to-end to promote regeneration of the damaged nerve. Nerve surgeries include repair, grafting, transfer, and decompression
Profiling the Secretome of Space Traveler Human Neural Stem Cells
Authors:   Department Of Surgery, Division Of Pediatric Surgery, School Of Medicine, Johns Hopkins University, 1721 E. Madison St, Ross 733, Baltimore, MD 21205, United States, Biancotti Juan Carlos , Carpo Nicholas ,   Department Of Psychiatry, IDDRC, Semel Institute, University Of California Los Angeles, Los Angeles, CA 90095, United States, Zamudio Joile ,   Department Of Psychiatry, IDDRC, Semel Institute, University Of California Los Angeles, Los Angeles, CA 90095, United States, Vergnes Laurent ,   Department Of Human Genetics, University Of California Los Angeles, Los Angeles, CA 90095, United States, Espinosa-Jeffrey Araceli ,   Department Of Psychiatry, IDDRC, Semel Institute, University Of California Los Angeles, Los Angeles, CA 90095, United States
Published: June 2022

Microgravity and the space environment have significant impact on the physiology of organisms. Understanding the responses elicited in the Central Nervous System (CNS) such as alteration in the visual function process and the regulation of biological pathways leading to changes of the CNS function, is critical to design contra measures aiming to mitigate the impact on astronaut’s health
Una hipótesis sobre política otomí y comicios municipales para Tierra Blanca, Guanajuato, México
Authors: Uzeta Iturbide Jorge
Published: June 2022

En este texto se analizan las condiciones locales y electorales que, en tiempos recientes, permitieron una sorpresiva victoria perredista en Tierra Blanca, un municipio guanajuatense con fuerte presencia otomí. Al mismo tiempo, el caso permite revisar una hipótesis de investigación centrada en la asociación entre mediaciones étnicas y el predominio del panismo en la entidad.
Mathematical Modeling and Simulation of the Dehydrogenation of Ethyl Benzene to form Styrene using Steady-State Fixed Bed Reactor
Authors: Shakoor Zaidoon M.
Published: June 2022

In this research, two models are developed to simulate the steady state fixed bed reactor used for styrene production by ethylbenzene dehydrogenation. The first is one-dimensional model, considered axial gradient only while the second is two-dimensional model considered axial and radial gradients for same variables. The developed mathematical models consisted of nonlinear simultaneous equations in multiple dependent variables. A complete description of the reactor bed involves partial, ordinary differential and algebraic equations (PDEs, ODEs and AEs) describing the temperatures, concentrations and pressure drop across the reactor was given. The model equations are solved by finite differences method. The reactor models were coded with Mat lab 6.5 program and various numerical techniques were used to obtain the desired solution. The simulation data for both models were validated with industrial reactor results with a very good concordance.
ANALYSIS OF METHODS OF PROCESSING CRANKSHAFT CONNECTING RODS ORIENTED TOOLS
Authors:   Chernihiv Polytechnic National University, Vasyl Sklyar
Published: June 2022

Crankshafts are quite common parts made in the automotive, shipbuilding, machine-building and other industries. They have a complex shape, also it is necessary to ensure high accuracy and productivity during processing. Analysis of crankshaftmachining methods is an urgent task.Analysis of known processing methods, identification of their advantages anddisadvantages will pay more attention to unresolved issues and further improve of the processing process.Known methods of processing connecting rod necks of crankshafts are considered. Nowadays grinding and milling are most often used. Milling can be a tool in which the cutting inserts are on the outside of the disk and on the inside. Many companies manufacture machines that are self-adjusting for processing, as well as flexible systems for processing various crankshafts. Most often, machines are designedto process the crankshaft for one institution.Lack of analysis of known methods of processing connecting rod necks of crankshafts.Analyze the known methods of processing connecting rod necks of crankshafts.This article is a review. Methods of crankshaft processing are considered. Processing of connecting rod necks takes more time, and is also more difficult in comparison with processing of radical necks as axes of these necks are not on a shaft axis. Processing of a cranked shaft for one fastening is more productive than for several fastenings. Processing of connecting rod necks of cranked shafts can take place with use of special devices or according to the program on CNC machines.The analysis of the known methods of grinding and milling of crankshaft necks was carried out in the article.
PROJECT OF PRISMATIC BUNKER STRUCTURE AND ESTIMATION OF ACCEPTED SOLUTIONS EFFICIENCY
Authors:   Chernihiv Polytechnic National University, Oleksiienko Serhii , Yushchenko Svitlana ,   Chernihiv Polytechnic National University, Rudenko Mykhailo ,   Chernihiv Polytechnic National University, Grechka Volodymyr ,   Chernihiv Polytechnic National University
Published: June 2022

The ensuring of the minimum metal consumption of the structure, the reducing the labour-intensiveness of its manufacture and assembly in the construction of steel prismatic bunkers, designed for storage and unloading of free-flowing materials, are entirely determined by the quality of the design structure. The disadvantage of bunker designs is the connection of the side panels at right angles, which causes the unevenness of the stress-strain state and, as a consequence, the occurrence of emergencies. Some studies suggest that one of the main specific causes of bunker breakdowns and damages is related to incorrect determination of structural loads. A number of authors propose the use of multilayer complex design with the utilization of corrugatedsteel sheets, which directed to address the issue of reducing metal consumption. Today there is still no complex approach to solving the problem of ensuring the reliable operation of the structure owing to searching the best structural forms, technologies for its manufacture and assembly.In this connection, the purpose of this work is to develop the design of the prismatic bunker, which allows to ensure operational reliability, production manufacturability and minimal attended costs associated with the construction of the struc-ture on the building site. By means of modeling the stress state in the structures of bunker tanks, the optimal constructive design options were determined, particularly, dimensional parameters and layout of vertical and stiffeningplates.To ensure the operational reliability of bunker tanks, a solution has been developed that provides for the use of stiffening plates in the design of bunker funnel, which ensure the combined work of its sheet part with the stiffening frame. Use of the block principle of construction of bunker tanks allows to increase a degree of factorial readiness of dispatch elements and to reduce labourintensiveness on assembly sites.
NEW OPPORTUNITIES FOR PROCESSING MATERIALS IN STRONG MAGNETIC FIELD
Authors:   Donbass State Engineering Academy, Kovalevskyy Sergiy , Kovalevska Olena ,   Donbass State Engineering Academy
Published: June 2022

The article shows the most important results of new studies concerning the possibility of influencing the physical and mechanical indicators of the hardness of steel and carbide materials, presented in the form of dimensional samples and non-sharp-ened cutting tool inserts. The main differences in the process of volumetric hardening of articles made of magnetically permeable materials are presented -resonant vibrations with amplitudes commensurate with the subatomic dimensions of the hardened materials. Some results of metallographic studies confirming the structural changes in the material of steel samples are presented. The efficiency of resonant processing of materials in a uniform magnetic field of neodymium magnets has been confirmed.
FIT FOR 55 – DOES IT FIT ALL? AIR AND RAIL TRANSPORT AFTER COVID – 19 PANDEMIC
Authors: Činčurak Erceg Biljana , Vasilj Aleksandra , Perković Aleksandra
Published: June 2022

The main principle of sustainability means being able to meet the needs of today’s society without compromising the ability of future generations to meet their own needs. Sustainable development implies the interdependence of its main components: society, economy, and ecology. The prosperity of a society depends on economic progress and the development of new technologies, but in a way that the natural environment is protected and preserved. This concept is inextricably linked to the concept of ecology and, consequently, to all types of transport, given that transport is considered one of the main pollutants of the ecosystem. Due to its rapid development through history, and as the youngest and safest type of transport, air transport is particularly subjected to the environmental impact assessment. At the same time, air transport affects the global economy due to its connection with other sectors, which in turn enables faster mobility of people, services, and goods. This was especially evident with the increased need for faster medical supplies and protective equipment delivery during the COVID-19 pandemic. The European Union’s transport policy is geared towards sustainable development by linking all environmental and social goals in a balanced way. Considering the negative long-term impact of COVID-19 on the air transportation sector, the question posed in this paper is whether this can be done in an appropriate way. As part of the European Green Deal, the “Fit for 55” package is a set of proposals to revise and update EU legislation with the purpose of introducing new initiatives regarding the climate goals agreed by the Council and the European Parliament. Regarding air transport, the emphasis is on contributing to reducing CO2 emissions and noise pollution and their impact on other sectors and competitiveness. The EU Commission White Paper: “Roadmap to a Single European Transport Area – Towards a competitive and resource efficient transport system” emphasizes that the EU aviation industry should become a frontrunner in the use of low-carbon fuels to reach the set targets, as well as that the majority of medium-distance passenger transport should go by rail by 2050. There are also initiatives that aviation taxes should subsidize high-speed rail (HSR), which potentially may cause a decrease in the air transport and benefit an increase the rail transport. The paper will also address the questions as to whether existing legislation, measures, and proposals are appropriate, considering that aviation is one of the industry sectors that is most affected by COVID-19 and could be most affected by the “Fit for 55” package, as well what impact this duopoly might have on the market for travel served by air transport. Does really “Fit for 55” fit air transport?
Avaliação sobre o método canguru em recém-nascidos prematuros e/ou de baixo peso
Authors: Lôbo Gabriel Rodrigues , Silva Liandra Marinho Carvalho da , Callau Maricela Chaves , Rodrigues Mariana Delfino
Published: June 2022

Objetivo: Avaliar a importância do método canguru para o desenvolvimento do recém-nascido prematuro e/ou de baixo peso, identificando quais os benefícios que o método canguru proporciona. Métodos: Trata-se de uma pesquisa de revisão integrativa, utilizando como base artigos científicos a partir da busca nas plataformas virtuais BVS e PubMed, obtendo ao total 9 artigos finais. A pesquisa partiu da elaboração de uma pergunta norteadora, por meio do uso da estratégia PICO: “A utilização do Método Canguru em contato pele a pele com os progenitores torna-se eficaz para o desenvolvimento do recém-nascido?”. Resultados: A realização do método canguru possui benefícios na amamentação, homeostasia e criação de vínculo afetivo do recém-nascido, apesar de existirem divergências na literatura. Contudo, o método demonstra ser uma estratégia valiosa na redução das taxas de reinternação, sendo isso um fator importante para a diminuição da morbimortalidade. Considerações finais: A realização desse estudo demonstrou os impactos positivos que o método canguru proporciona não somente ao recém-nascido, como também aos progenitores. O contato pele a pele auxilia na homeostasia, maior taxa de aleitamento materno, diminuição dos casos de reinternação, gera tranquilidade no recém-nascido e auxilia na promoção de vínculo afetivo.
Kivi Halkalarının Osmotik Dehidrasyon Ve Güneş Enerjili Kurutucu İle Birlikte Kurutulması
Authors: YILDIZ Zehra , GENCER Furkan Sabri
Published: June 2022

Taze sebze ve meyvelerin her mevsim tüketilebilmesi için uygulanan yöntemlerden en yaygın kullanılan işlem kurutmadır. Kurutma işlemi geleneksel olarak güneş altında büyük alanlara yayılarak ya da osmotik dehidrasyon ile kurutulmaktadır. Ancak güneş ışının doğrudan temas etmesi durumunda özellikle besin değerlerinde azalma ve ürünün renginde bozulma olduğundan dolaylı olarak güneş enerjisinden yararlanılan güneş enerjili kurutucular geliştirilmiştir. Bu çalışmada, kivi meyvesi halka şeklinde dilimlenerek osmotik dehidrasyon, doğal konvektif çok raflı güneş enerjili kurutucuda ve osmosolar dehidrasyon ile kurutulmuştur. Osmosolar dehidrasyon, ozmotik dehidrasyon ve güneş enerjili kurutma yöntemlerinin bir arada kullanıldığı hibrit bir kurutma yöntemidir. Osmotik dehidrasyon işlemi için kivi halkaları 3 mm dilim kalınlığında kesilerek %20 sakkaroz çözeltisine belirlenen kurutma süresi boyunca daldırılmıştır. Osmosolar dehidrasyon işleminde önce kivi halkaları sakkaroz çözeltilerine daldırılmış ve daha sonra güneş enerjili kurutucuda kurutulmuştur. Nem kaybı, kurutma hızı, çapsal büzülme oranı ve a renk parametresindeki değişim üzerine kurutma yönteminin kurutma süresi boyunca etkisi belirlenmiştir. Kivi halkalarının çok raflı güneş enerjili sistemler ile kurutulmasında, ozmotik dehidrasyon işleminin etkili olduğu görülmüştür.
Comparative Life Cycle Assessment for Improvement of Solid Waste Management System of Pariaman Coastal Tourism Area
Authors: Aziz Rizki , Nurunnissa Syarah
Published: June 2022

Sustainable tourism should provide environmentally friendly solid waste management. This study aims to assess the environmental impact of the waste management system applied to the Pariaman Coastal Tourism Area using the Life Cycle Assessment (LCA) method and provide recommendations for improving an environmentally friendly waste management system. The aspects studied are limited to waste handling, waste, energy required and generated in the system’s operation. The study compared two scenarios of solid waste management; the existing (scenario 1) and the proposed one (scenario 2). The study was conducted on solid waste management of 170.51 kg/day. The impact assessment method used is CML-IA. The results of impact characterization showed that the impact of scenario 1 is higher than scenario 2 on Global Warming Potential (GWP) 7.5 times and Eutrophication Potential (EP) 90.6 times, while on Acidification Potential (AP) was lower 1.6 times. Activities at landfill sites contribute the most significant impact of GWP, AP, and EP. It is recommended to choose shorter collection and transportation routes, substitute the solid waste vehicles fuel, change the power plant source for composting machine, and apply the sanitary landfill with leachate treatment and gas processing.
Current experience of the treatment of multiple cerebral aneurysms (literature review)
Authors: Shchehlov D.V. , Gnelyca O.P. , Vyval M.B. , Sviridyuk O.E. , Konotopchyk S.V.
Published: June 2022

Multiple cerebral aneurysms are found in one among four patients with aneurysmal subarachnoid hemorrhage. Nowadays, there is no clear consensus regarding the optimal treatment of multiple cerebral aneurysms. The papers published up to December 2021 containing the results of endovascular treatment of multiple cerebral aneurysms. Treatment strategy, surgical methods, complications associated with the procedure, and mortality rates were analyzed. The treatment of multiple cerebral aneurysms remains an unresolved problem of vascular neurosurgery, in particular, there is no consensus on the optimal method of treatment and timing. Current evidence-based data indicate the advantage of minimally invasive techniques in the treatment of multiple cerebral aneurysms due to the low risk of complications and the possibility of one-session procedure. The question of treat or not to treat of unruptured aneurysms in the presence of multiple aneurysms is a matter of debate. The choice between surgical methods (microsurgical clipping or endovascular coiling) or observation requires a multidisciplinary approach, taking into account the risks of rupture and the corresponding procedures.
Fraudlent Financial Reporting: Menguji Potensi Kecurangan Pelaporan Keuangan dengan Menggunakan Teori Fraud Hexagon
Authors: Larum Kordi , Zuhroh Diana , Subiyantoro Edi
Published: June 2022

The purpose of this study was to analyze the effect of Pressure, Capability, Rationalization, Opportunity, Arogance/Ego and Collusion on the potential for fraudlent financial reporting. The research sample is State-Owned Enterprises (BUMN) listed on the Indonesia Stok Exchange for the 2016-2019 period. By using the purposive sampling method, 86 samples were obtained. Multiple Linear Regression was used to analyze the data. The novelty in this study is the use of fraud hexagon theory has not been widely used because it is a renewable theory developed by Vousinas in 2019. Besides, ihe measurment of the collusion variabel in this study used multyple independen Commissioners with other position where no has used this measurement in measuring the potential for fraudlent financial reporting.The results showed that pressure, Capanility and Ego influace the potential for fraudlent financial reporting, while Rationalization, Opportunity adn Collusion did not influance. Tujuan penelitian ini untuk menganalisis pengaruh Tekanan, Kemampuan, Rasionalisasi, Peluang, Ego dan Kolusi terhadap potensi Kecurangan Pelaporan Keuangan. Sampel penelitan adalah Badan Usaha Milik Negara (BUMN) yang terdaftar di Bursa Efek Indonesia periode 2016-2019. Total sampel yang digunakan 86 dengan menggunakan metode purposive sampling. Metode analisis menggunakan Regresi Linear Berganda. Terdapat kebaruan dalam penelitian ini dimana fraud hexagon dalam mendeteksi potensi kecurangan pelaoporan keuangan belum banyak digunakan karena teori ini merupakan teori terbarukan yang dikembangan Vousinas tahun 2019. Selain itu pengukuran variabel kolusi dalam penelitian ini menggunakan rangkap jabatan Dewan Komisaris Independen dinama pengukuran ini belum ada yang mengunakan dalam mengukur potensi kecurangan laporan keuangan. Hasil penelitian menunjukan Tekanan, Kemampuan dan Ego berpengaruh terhadap potensi kecurangan pelaporan keuangan, sedangkan Rasionalisasi, Peluang dan Kolusi tidak berpengaruh terhadap potensi kecurangan pelpaoran keuanganDOI: https://doi.org/10.26905/afr.v4i1.5957
Liquidity, Profitability and Asset Growth towards the Dividend Payout Ratio
Authors: Heliani Heliani , Mareta Fitri , Rina Eneng , Rahayu Mia Safitri , Ramdaniansyah Muhammad Rizky
Published: June 2022

The purpose of this study is to determine the factors that influence the distribution of dividends in Indonesia. The objects of this research are 51 manufacturing companies listed on the Indonesia Stock Exchange for the 2015-2019 period. The method used is balanced panel data with random effects model. The results of this study are return on equity, cash flow, growth, and market to book value have a significant effect on the dividend payout ratio. While the variables of tax, current ratio, and institutional holding have no effect on the dividend payout ratio. The combination of financial ratios, cash flow, taxes, and institutional holding gives a new combination to this research. The contribution of this research is showed the fact that cash flow has a bigger role than profitability, while the sales will increase growth and stock prices will also increase thereby increasing dividend payments.
The Translational Learning EcoSystem
Authors: R Lotrecchiano Gaetano , K Norman Marie
Published: June 2022

Aim/Purpose
In this paper we propose an ecosystem for translational learning that combines core learning principles with a multilevel construct that embraces the tenets of translational research, namely, teaming, translating, and implementing. The goal of the paper is to argue that knowledge of learning sciences is essential at the individual, team, and organizational levels in the translational science enterprise.

Background
The two decades that we can now call the translational era of health and medicine have not been without challenges. Many inroads have been made in navigating how scientific teaming, translating knowledge across the health spectrum, and implementing change to our health systems, policies, and interventions can serve our changing global environment. These changes to the traditional health science enterprise require new ways of understanding knowledge, forging relationships, and managing this new tradition of science. Competency requirements that have become important to the enterprise are dependent on a deep understanding about how people learn as individuals, in teams, and within organizations and systems.

Methodology
An individual, team, and organizational conceptual framework for learning in translational ecosystems is developed drawing on the learning science literature, a synthesis of 9 key learning principles and integrated with core competencies for translational science.

Contribution
The translational learning ecosystem is a means by which to understand how translational science competencies can be reinforced by core learning principles as teaming, translating, and implementation intersect as part of the translational science enterprise.

Findings
This paper connects learning science to tailored principles in a simplified way so that those working translational science with less knowledge of theories of learning and pedagogy may be able to access it in a clear and concise way.

Recommendation for Researchers
This paper provides a framework for researchers who engage in the education of translational scientists as well as those who are charged with training new scientists in an emerging field critical to health and medicine.

Future Research
The translational ecosystem described can serve to expand how teaching and learning impact scientific advances. In addition, it serves as a means in which to understand the impact of learning on micro, meso, and macro levels.