bluuebunny/crossref_metadata_2025 huggingface dataset:
Pendampingan Mahasiswa terhadap Metamorfosis Pembelajaran Dimasa Pandemi Covid 19
Authors: Kartika Diana , Amril Oslan , Mardius Ali , Prajana Andika , Astuti Yuni , Zulbahri Zulbahri
Published: November 2020

ABSTRACTThis community service program aims to provide assistance to college students in learning process that changes due to the impact of the Covid-19 Pandemic. There has been a change in learning that was initially offline or carried out at the campus but because of the pandemic it was directed into online learning of course has weaknesses and shortcomings. The continuity of this program is to understand and prepare for online learning both in terms of IT, immunity, ethics and others in the future so that learning outcomes can still be achieved even though the process is online Keywords: Speaking Ethics, Mastery of IT, enhancing body immunity ABSTRAKKegiatan pengabdian kepada masyarakat ini bertujuan untuk memberikan pendampingan kepada mahasiswa dalam proses pembelajaran yang berubah karena dampak Pandemi Covid 19. Terjadinya perubahan pembelajaran yang awalnya luring atau dilakasanakan di kampus tetapi karena pandemi maka di arahkan pada daring yang tentunya memiliki kelemahan dan kekurangan. Keberlanjutan dari program ini adalah agar mamahami dan mempersiapkan diri untuk pembelajaran daring baik dari segi IT, imun tubuh, etika dan lainnya pada masa berikutnya sehingga capaian pembelajaran tetap tercapai walaupun prosenya daring.  Kata Kunci: Etika Berbicara, Penguasaan IT, peningkatan imun Tubuh
Методика оцінки ефективності надійності функціонування автоматизованої системи військового призначення, як складної організаційно-технічної системи
Authors: Кучеренко Ю.Ф. , Носик А.М. , Сімонов С.І. , Шубін Є.В.
Published: November 2020

У статті показано зростання ваги застосування автоматизованих систем військового призначення при веденні сучасних воєнних конфліктів збройними силами, що направлене на отримання інформаційної переваги над противником за рахунок використання можливостей єдиного командно-інформаційного простору всіма його користувачами. При застосуванні автоматизованих систем військового призначення як у повсякденній діяльності військ, так і при виконанні ними бойових завдань дуже часто у органів управління є потреба здійснювати поточну оцінку ефективності їх функціонування за основними властивостями, в тому числі і за надійністю функціонування, з метою прийняття ними обґрунтованих рішень щодо необхідності виконання певних заходів для відновлення їх функціонування або порівняння їх між собою для визначення можливостей з автоматизованого управління підпорядкованими об’єктами управління. Представлена методика оцінки ефективності надійності функціонування автоматизованої системи військового призначення, дає можливість органам управління у стислі терміни, застосовуючи простий математичний апарат, здійснювати поточну оцінку надійності її функціонування. Головна відмінність даної методики оцінки ефективності надійності функціонування автоматизованої системи військового призначення від інших полягає в тому, що вона дозволяє відповідним органам управління визначити її ефективність синхронізовано з термінами циклів управління військами та засобами з врахуванням обраного в неї способу управління об’єктами управління. Даний матеріал доцільно використовувати органам управління при здійсненні поточної оцінки надійності функціонування автоматизованих систем  військового призначення для вибору шляхів з виконання необхідних заходів щодо поліпшення її надійності функціонування при плануванні застосування відповідних сил та засобів в операції або для здійснення порівняння різних систем між собою за основними їх властивостями.
Модель представлення часового процесу функціонування технологічного обладнання повітряного судна на основі аналізу даних параметричної діагностики
Authors: Падалка І.О. , Дмитрієв О.М. , Пархоменко Д.О. , Пасько І.В.
Published: November 2020

У роботі запропоновано модель представлення часового процесу функціонування технологічного обладнання повітряного судна на основі аналізу даних параметричної діагностики для виявлення аномальних послідовностей з метою попередження особливих випадків в польоті. Для виявлення аномальних послідовностей пропонується використовувати гібридну стохастичну модель, засновану на об'єднанні марківських і продукційних моделей, що використовують темпоральні правила для уточнення перехідних ймовірностей між станами процесу.
Etnopedagogi: Tinjauan Aktualisasi Merdeka Belajar Dalam Konstruksi Sikap Sosial
Authors: Jayendra Putu Sabda
Published: November 2020

Putu Sabda Jayendra dalam tulisannya berjudul “Etnopedagogi: Tinjauan Aktualisasi Merdeka Belajar Dalam Konstruksi Sikap Sosial” memaparkan implementasi pembelajaran konstruktivistik melalui aktualisasi etnopedagogi dengan sendirinya akan mengurangi potensi-potensi konfli di masyarakat. Proses pewarisan budaya dan sosialisasi nilai melalui kearifan lokal pada akhirnya akan memperkuat identitas masyarakat yang cerdas dan berkarakter.
Jurnal Harian/Mingguan
Authors: Mukrimah Tis'a
Published: November 2020

Kuliah Kerja Lapangan Pengganti (KKLP) adalah Kegiatan akademik sebagaipengganti matakuliah Kuliah Kerja Lapangan (KKLP) yang dilaksanakan olehkelompok mahasiswa berupa penyusunan laporan hasil review dari satu ataubeberapa bidang pekerjaan industri/ instansi atau menghasilkan suatu karya baikberupa alat atau hasil karya ilmiah sesuai Capaian Pembelajaran Lulusan Programstudi yang disetujui oleh Dosen Pembimbing.
SENAM BERSAMA KADER PKK
Authors: RAHMIATI
Published: November 2020

Senam dilakukan pada sore harioleh mahasiswa KKLP, dan masyarakat setempat. Senam di lakukan di halaman depan masjid Al-Ikhlas
SYK, CSK and FYN are differentially expressed in the primary tumors of breast cancer patients treated with trastuzumab.
Authors: Mamoor Shahan
Published: November 2020

The mechanism of action underlying trastuzumab (Herceptin) function is ascribed to binding of the Fab region of trastuzumab to the extracellular domain of the human epidermal growth factor receptor (HER2) (1). The transcriptional responses that follow signals transduced after trastuzumab binding of HER2 are less well understood. Protein tyrosine kinases are one major class of cellular components utilized in the transduction of signals from the cell surface to the nucleus. We mined published microarray and multiplexed gene expression data (2-5) to understand in an unbiased fashion genes most differentially expressed in the primary tumors of breast cancer patients treated with trastuzumab. We observed significantly increased and differential expression of multiple protein tyrosine kinases in the primary tumors of patients with breast cancer, including SYK, CSK and FYN. These data document previously undescribed up-regulation of protein tyrosine kinases following treatment with trastuzumab in patients with breast cancer.
Overcoming Anxiety During The Covid-19 Using Five-Finger Hypnotic Therapy
Authors: Pardede Jek Amidos , Simanjuntak Galvani Volta
Published: November 2020

COVID-19 is an infectious disease caused by coronavirus 2 Acute respiratory syndrome (Severe acute respiratory syndrome coronavirus 2 or SARS-CoV-2). This Virus can be transmitted from human to human and has spread widely and raises anxiety in all people. People's anxiety toward Covid-19 should be promptly addressed if unresolved will be poorly engaged. Anxiety towards Covid-19 is higher than the person in general who can lower the quality of life. Anxiety handlers use five-finger hypnotic therapy. Because of the five-finger hypnotic therapy is a process that uses the power of the mind by directing the body to heal self-nourishes health/relaxation through communication in the body involving all visual senses, touch, guidelines, vision, and hearing. The study aims to determine the effect of five-finger hypnotic therapy on anxiety levels in people with Covid-19 mentoring (ODP) at Sari Mutiara Hospital. The research design of the Quasy experiment one group pre-post test. The number of samples used as many as 31 people were selected with the purposive sampling technique. The results showed that the level of anxiety before the five-finger hypnotic therapy was largely in the medium category of 15 people (48.4%) At a severe anxiety level as much as 14 people (45.2%) And at a mild anxiety level as much as 2 people (6.5%). After the five-finger, hypnotic therapy showed that there was a decrease in the number of severe anxiety levels of 2 people (6.5%) Mild anxiety Level 11 people (35.5%) The anxiety level was 18 people (58.1%). The results of this study at Wilcoxon's statistical test were to get the result of Z = -3,162 and P-value of 0.002 (P < 0.05), there was a significant effect of five-finger hypnotic therapy on the anxiety level of people with Covid-19 (ODP) mentoring.
A second erb-B receptor tyrosine kinase, ERBB4, is differentially expressed in the tumors of breast cancer patients treated with trastuzumab.
Authors: Mamoor Shahan
Published: November 2020

HER2, the human epidermal growth factor receptor 2, is encoded by the ERBB2 gene (1). Trastuzumab, a monoclonal antibody that targets HER2, is utilized for the treatment of breast cancer (2). We recently reported that trastuzumab treatment paradoxically increases HER2 expression in the primary tumors of patients with breast cancer (3). We report here, using analysis of published microarray data (4, 5), that a second erb-B receptor tyrosine kinase, ERRB4, is also differentially expressed in the tumors of patients with breast cancer treated with trastuzumab. Trastuzumab treatment appears to be associated with the up-regulation of two members of the erb-B receptor tyrosine kinase family in human breast cancer.
JURNAL HARIAN/MINGGUAN
Authors: Asriadi
Published: November 2020

Kuliah Kerja Lapangan Pengganti (KKLP) adalah Kegiatan akademik sebagai pengganti matakuliah Kuliah Kerja Lapangan (KKLP) yang dilaksanakan oleh kelompok mahasiswa berupa penyusunan laporan hasil review dari satu atau beberapa bidang pekerjaan industri/ instansi atau menghasilkan suatu karya.
Palm Sap Sources, Characteristics, and Utilization in Indonesia
Authors: Kurniawan Teguh , Jayanudin  , Kustiningsih Indar , Firdaus Mochamad Adha
Published: November 2020

Sap from various species palm trees in which known as neera generally produced by traditional technology in Indonesia. There are 5 well known palm species that produce Neera in Indonesia such as arenga palm, coconut tree, doub palm, nipa palm and palm oil. Neera can be utilized as raw material for various derivatives such as palm sugar, sweet palm toddy, and alcoholic toddy. Tapping of neera is a crucial step because neera prone to immediately degrade and causing poor quality of palm sugar. Traditional sugar processing has some drawbacks for example: low energy efficiency processing and off-specification products. On the other side, sugar palm neera has important antioxidant component which benefits for human that unavailable in normal white sugar from sugarcane. In this current review, characterization of neera from various palms in Indonesia and available technology on sugar palm processing such as spray dryer and membrane ultrafiltration will be discussed.
Training Child Learners On Non-Native Vowel Contrasts with Phonetic Training: The Role of Task and Variability
Authors: Brekelmans Gwen , Evans Bronwen G. , Wonnacott Elizabeth
Published: November 2020

Substantial research suggests high variability (multi-talker) phonetic training helps second language adults improve differentiation of challenging non-native speech sounds. Is such training also useful for L2 children? Existing studies have mixed findings and important limitations. We investigate the potential benefits of computerised phonetic training for 50 Dutch 7-year-olds and 39 11-year-olds trained on English vowel contrasts in a two-week study, in a classroom setting. Half received multi-talker, half single-talker input (HV versus LV) with learning evaluated by a battery of tests. Both groups improved in training, however, 11-year-olds improved more. Moreover, 11-year-olds showed generalisation to novel talkers while 7-year-olds did not, with Bayes Factor analyses providing evidence for the null. Generalisation in 11-year-olds was no greater following HV than LV input, with evidence for the null on one of two tasks where generalisation was found. Results are discussed in terms of the interplay between age, task demands and talker variability.
Analysis of Slope Stability for Kaande Landslide of Phewa Watershed, Pokhara, Nepal
Authors: Basnet Keshav , Wagle Dhruba , Bhattarai Sagar , Sadadev Biwas Babu
Published: November 2020

Phewa watershed of Kaski, Nepal is constantly facing landslides and soil erosion problems. Andheri Khola sub-basin of Phewa watershed accounts the maximum amount of sediment inflow into Phewa Lake. Therefore Kaande Landslide of Andheri Khola sub-basin, located between Deurali and Paundur villages at the source zone of Andheri Khola is chosen for the slope stabilization to control the sediment flow. The main objective of the study was to analyze the slope stability condition of the landslide area for which the whole landslide area was divided into eight zones starting from the crown to the toe based on the major parameters like soil/rock type, slope inclination, spring source and surface water on the basis of field observation. The factor of safety of each zone was calculated based on stability analysis of an infinite slope of cohesive soils. Sieve analysis result shows the landslide area has coarse grained structure (gravel and sand) dominant. The factor of safety of the landslide was found to be from 0.281 to 0.710. The field assessment and factor of safety reveals the Kaande landslide to be unstable and further possibilities of landslides and soil erosion in the future. For mitigating the hazard, eco-friendly soil bio-engineering measures such as direct seeding of grasses/shrubs, grasses/shrubs/trees plantation, brush layering, and gabion wire bolster cylinders are recommended for slope stabilization based on the optimal techniques guidelines of Mercy Corps Nepal, 2014. It is recommended to apply the proposed mitigation measures as early as possible to prevent the further landslide hazard.
Assessment of the Multi Functionality of a Small Hydropower Project at Padhu Khola, Kaski, Nepal
Authors: Bhandari Achyut , Basnet Keshav , Pokharel Nisha , Shrestha Kishor Kumar , Baral Nirmal Prasad
Published: November 2020

Nepal has not utilized the potential of the water resources to the full extent. Systematic and wise development of such resources is of paramount importance for enjoying the maximum possible benefits. This study focused on the needs, challenges, and opportunities of new multifunctional small hydropower projects in Nepal. This study on Padhu Khola shows the possibility of incorporating other facilities along with hydropower for the locality’s socio-economic development. The selection of the best layout of the hydropower generation and distribution of other hydropower components showed that the stream Padhu Khola had a power potential of 1 MW. The economic analysis resulted in the benefit-cost ratio of freshwater aquaculture, drinking water plants to be 1.98 and 1.97 respectively. Other facilities like forestry, local employment facilities, and tourism development were found feasible and practicable.
Predicting Academic Performance of Engineering Students Using Ensemble Method
Authors: Bithari Tek Bist , Thapa Sharan , K.C. Hari
Published: November 2020

One of the common problems that most of the engineering institutions face in recent times is poor academic results. The statistics of the IOE semester result show that since 2009 A.D., the average pass percentage has been reducing in an average from 50% to 40% and moving towards decreasing scenarios. The study aims to predict an engineering student's academic performance based on their past educational records, demographic factors, family backgrounds, and other related factors. Firstly, a predictive model is built using the traditional classifiers Decision Tree, SVM, and Linear Regression, which had shown good performance in similar types of study. After that, we have implemented one of the popular ensemble Methods, voting, which is known for improving the individual classifier's performance. Voting classifier combines the predictions of base classifiers by averaging those predictions. The result revealed that the accuracy, precision, recall, and F1 score had been considerably improved by using ensemble voting than that of the individual classifiers. The data used in the study was collected directly from the hard copy personal files of each pass out student of Paschimanchal Engineering Campus, Pokhara between the years 2004 to 2015 AD.
Fuzzy multicriteria decision-making-based optimal Zn–Al alloy selection in corrosive environment
Authors: Bansod Ankur V. , Patil Awanikumar P. , Kalita Kanak , Deshmukh B. D. , Khobragade Nilay
Published: November 2020

Suitable material selection with emphasis on a specific property or application is an indispensable part of engineering sciences. It is a complex process that involves multiple criteria and often multiple decision makers. The tendency of decision makers to specify their preference in terms of imprecise qualitative statements like ‘good’, ‘bad’ etc. poses a further challenge. Thus, in this research, a comprehensive multicriteria decision-making study was conducted to select the optimal Zn-Al alloy based on performance in a corrosive environment. Four variants of technique for order of preference by similarity to the ideal solution were used to perform the multicriteria decision-making analysis. Group decision and imprecise decision making is handled by incorporating the fuzzy theory concept in a technique for order of preference by similarity to the ideal solution. The effect of addition of aluminium to zinc was studied by examination of microstructure, hardness, and corrosion behaviour. The result indicates that an increase in Al content increases the formation of dendrites. The dendrites were rich in the α phase, which results in an increase in hardness. An increase in Al content in Zn (Zn-22Al and Zn-55Al) results in the uniform distribution of the a phase in the microstructure and reduction of non-equilibrium phases. The potentiodynamic polarisation test revealed that an increase in Al in the alloy decreases the corrosion current density. The weight loss test carried out to validate the potentiodynamic test findings exhibited higher weight loss in pure Zn and lowest in Zn-55Al. Similar results were observed in the salt spray test. The multicriteria decision-making analysis revealed that Zn-55Al is the most suitable alloy in a corrosive environment among the tested alloys.
Crystallization behavior, Al-Ce intermetallic formation, and microstructure refinement of near-eutectic Al–Si alloys by rare-earth element additions
Authors: Chi Bo , Shi Zhiming , Wang Cunquan , Wang Liming , Lian Hao , Zhang Ruiying , Wang Huhe
Published: November 2020

Near-eutectic Al-Si alloys have low strength and high brittleness because of the presence of many eutectic b-Si flakes, needle-like Al-Fe-Si intermetallics, and coarse α-Al grains. This study disclosed the effects of cerium-rich RE (rare earth) element modification on orientation characters of crystals, formation of Al-Ce compounds, and microstructural refinement to improve the microstructure and mechanical properties of the alloys. The RE addition depressed preferential growth along the close-packed and/or sub-closepacked planes and promoted growth along the non-closepacked planes, in which La and other elements were dissolved into needle-like Al11Ce3 phase. When the temperature decreased, Al11Ce3 was preferentially crystallized from the melts and then devitrified by attaching to the surface of β-Al5FeSi needles. Moreover, many small Al11Ce3 particles were precipitated in the matrix and on the Si surface by a T6 heat treatment. Eutectic β-Si phases were constructed into discontinuous networks, short rods, and even particles by RE additions, which were further transformed into fine nodules following the T6 treatment. α-Al grains and primary β-Al5FeSi needles were simultaneously refined. The addition of 1.0 wt.% REs and subsequent T6 treatment yielded the highest tensile strength, elongation, and hardness of the alloy.
Computational thermodynamics/kinetics aided design for the microstructure of pearlitic steels during cooling process
Authors: Zhang Cong , Su Lan , Wang Xin , Jiang Xue , Zhang Ruijie , Yin Haiqing , Song Yong , Mi Zhenli , Hu Lei , Ma Han
Published: November 2020

The effect of cooling rate on the microstructure of SGLX82A steel was systematically investigated by coupling of experimental characterizations and thermodynamic/ kinetic calculations. The as-received casting ingots were heated and hot-deformed using a Gleeble simulator before being subjected to continuous cooling with rates of 5, 10, 15 and 20 K s-1. The microstructure of the SGLX82A steel was analyzed by using laser scanning confocal microscopy and scanning electron microscopy. The homogeneous microstructure with different proeutectoid ferrite fraction, pearlite colony size as well as pearlite lamellar spacing was examined at varied cooling rate. The calculation of the para-equilibrium phase diagram was performed by using Thermo-Calc software, while the DICTRA module was applied to calculate the diffusion-controlled ferrite formation and pearlite growth. Based on the calculations, the deviation between equilibrium and realistic eutectoid point was well explained, and the detected small amount of proeutectoid ferrite was attributable to the short duration before pearlite transformation. For the calculated pearlite lamellar spacings, good agreement was obtained compared with the experimental determinations. In addition, the present thermodynamic/kinetic method was also valid for a Crmodified steel SWRS87B, indicating the composition, processing parameters and microstructure of pearlitic steels can be reasonably designed with the aid of the present computational techniques.
Residual stress analysis, mechanical and metallurgical properties of dissimilar weldments of Monel 400 and AISI 316
Authors: Yelamasetti Balram , Rajyalakshmi G.
Published: November 2020

This research manuscript explores the residual stress analysis, mechanical and metallurgical aspects of dissimilar welded joints between AISI 316 and Monel 400 developed by constant, pulse and Interpulse current TIG welding processes. The induced residual stresses have been measured experimentally by employing X-ray diffraction. The mechanical properties of welded joints have been determined by conducting tensile and Vickers hardness testing. The metallurgical properties of weldments have been analyzed by employing optical and scanning electron microscopy. From the experimental results, lower residual stresses have been observed in Interpulse current TIG weldment than the other two weldments. The tensile properties of the Interpulse current TIG weldment were observed to be higher than the other two weldments. In Interpulse TIG weldments, grain refinement and reduced heat affected zone near the fusion zone have been observed.
LIVROS PARADIDÁTICOS DE QUÍMICA: ANÁLISE DO TEMA RADIOATIVIDADE
Authors: Zapateiro Gean Aparecido , Rocha Zenaide De Fátima Dante Correia , Figueiredo Márcia Camilo , Jacinto Samila
Published: November 2020

Este artigo tem como objetivo analisar livros paradidáticos de química que abordem conteúdos de radioatividade, evidenciando como autores exploram os temas transversais e a história da ciência. Para avaliação e análise dos materiais encontrados foi elaborado um quadro de acordo com os requisitos descritos no Guia Nacional dos Livros Didáticos (PNLD) de 2018, priorizando aspectos que definem as características de um livro paradidático conforme a literatura e alguns pressupostos apresentados nos trabalhos de Munakata (1997), Laguna (2001), Assis, Teixeira (2005) e Beneti (2008). A partir da análise, verificou-se em um dos livros vantagens e desvantagem, por exemplo, a maneira como os conteúdos de radioatividade estão estruturados pode induzir alunos a construírem concepções errôneas de que somente malefícios são causados a humanidade e ao meio ambiente, e a vantagem é poder utilizá-lo como suporte complementar para trabalhar a questão ambiental do lixo nuclear. Na apreciação do segundo livro, constatou-se características de um paradidático profícuo para utilização em sala de aula, pois aborda diversos temas transversais e a história da ciência como uma construção humana, conteúdos considerados relevantes para o processo educacional.
APLICAÇÃO DE FERRAMENTAS PEDAGÓGICAS PARA O ENSINO DE CIÊNCIAS EM ESTUDANTES DE PEDAGOGIA: APRENDENDO SOBRE ENERGIA E ELETRICIDADE
Authors: Quinquiolo Natália Carvalho Rosas , Monteiro Marco Aurélio Alvarenga
Published: November 2020

O Ensino de Ciências nas séries iniciais do Ensino Fundamental tem sido amplamente discutido já que o exercício da cidadania exige que os indivíduos possam compreender os fundamentos da nossa sociedade, atualmente dependente da Ciência, da Tecnologia e da Inovação. Por isso, a formação de professores com a autonomia profissional para atender a essas exigências é importante. Neste trabalho, buscamos compreender como futuros pedagogos podem vir a mudar suas concepções quando submetidos a diferentes ferramentas pedagógicas, permitindo vivenciar o uso de tecnologias e recursos em sala de aula, estimulando o ensino de Ciências. Para tanto, realizamos a aplicação de questionários, contextualização teórica e a apresentação de diferentes propostas didáticas associadas as habilidades e competências preconizadas na Base Nacional Curricular Comum. Os resultados mostram que os professores em formação inicial não consideram a sua formação suficiente para lecionar Ciências e evidenciam um desconforto ao serem desafiados a ministrar aulas desses conteúdos. Após passarem por processos reflexivos acerca do uso de metodologias de aprendizagem, demonstraram grande interesse pela temática, maior confiança para atuar em sala de aula e compreensão da importância do uso de recursos que possibilitem uma educação problematizadora e participação ativa do aluno no processo de ensino e de aprendizagem.
CONCEPÇÕES INICIAIS DE ALUNOS DO ENSINO FUNDAMENTAL SOBRE OS CONTEÚDOS DE FISIOLOGIA HUMANA E FISIOLOGIA DO EXERCÍCIO.
Authors: Lemke Cláudia Elizandra , Scheid Neusa Maria John
Published: November 2020

O presente artigo busca investigar as concepções iniciais dos alunos de 8º ano do ensino fundamental de uma escola pública da rede municipal de ensino de Santo Ângelo-RS sobre os conteúdos de fisiologia humana e fisiologia do exercício. Configura-se como uma pesquisa qualitativa em educação, resultado de uma dissertação de mestrado sobre a interdisciplinaridade no ensino de ciências, que utilizou a investigação-ação para formular e investigar uma proposta interdisciplinar em Ciências e Educação Física. O questionário utilizado para investigar as concepções foi analisado à luz dos referenciais teóricos, por meio da análise de conteúdo. Percebemos que os alunos não conhecem conceitos como frequência cardíaca, o funcionamento do sistema circulatório, apesar de frequentarem regularmente as aulas das disciplinas.
A IMPORTÂNCIA DO DIÁRIO DE FORMAÇÃO PARA A SISTEMATIZAÇÃO DE EXPERIÊNCIAS NA FORMAÇÃO CONTINUADA DE PROFESSORES DE CIÊNCIAS
Authors: Bremm Daniele , Güllich Roque Ismael Da Costa
Published: November 2020

Este trabalho busca investigar a importância do Diário de Formação para o processo de sistematização de experiências, bem como, a importância da reflexão que decorre do processo coletivo durante a sistematização de experiências para o processo de formação dos professores de Ciências. Para tanto, foram gravados e transcritos dois encontros de formação de professores do projeto de extensão denominado Ciclos Formativos no Ensino de Ciências, em que foram sistematizados relatos de experiências. A partir dos resultados produzidos foi possível perceber como o Diário de Formação contribui para a sistematização de experiências e consequentemente para a formação inicial e continuada de professores de Ciências, sendo apontado como espaço para o nascimento do relato de experiências a ser sistematizado. O Diário de Formação leva o professor a refletir criticamente sobre a sua prática, sendo esta uma reflexão individual que na sistematização passa a ser um momento de Investigação-Formação-Ação, ao desencadear reflexão formativa.
UV-Technologies for Disinfection of Water, Air and Surfaces: Principles and Possibilities
Authors: Kostuchenko S. V. , Tkachev A. A. , Frolikova T. N.
Published: November 2020

Relevance. For over 30 years, ultraviolet bactericidal radiation has been widely used to disinfect water, air and surfaces. Currently, UV technologies are being dynamically introduced into various spheres of the national economy – industry, medicine, utilities, energy, transport, agriculture, etc.

Aims of this message to present the possibilities of UV radiation for the disinfection of water, air, and surfaces.

Conclusions. The task of disinfecting natural and waste waters was the driver of the development of UV technologies in the last 30 years. The scale of this task forced the world's leading institutions and lighting companies to raise the development and production of UV radiation sources (UV lamps) to a new level. In recent years, is in the usage of UV radiation for disinfection of air and air conditioning systems of buildings as a whole. Global migrations and communications of the population around the planet have aggravated the situation with the spread of infectious diseases transmitted by airborne droplets. In last decades, epidemics have ceased to be a local territorial phenomenon. A prime example is the current global COVID-19 pandemic caused by the SARS-CoV-2 coronavirus. In medicine, the highest requirements are imposed on the disinfection of air and surfaces with a high degree of disinfection. To solve this problem, it is necessary to pay special attention to modern developments in the application of UV technologies, taking into account the effective UV doses in relation to various types of microorganisms.
Frequency and Risk Factors of Purulent Septic Infection among Adults after Different Types of an Open Heart Operations
Authors: Sergevnin V. I. , Kudryavtseva L. G. , Zolotukhina A. I.
Published: November 2020

Relevance. The problem of purulent postoperative septic infection (the hospital acquired infection or HAI) is still one of the main cause of fatal outcomes of patients in cardiac hospitals, which demands significant material costs. The aim of the work is to evaluate the intensity of the epidemic process and risk factors for HAI among adults after various types of open heart surgery.

Materials and methods. The study of medical records of 1540 patients over 18 years old, who underwent open heart surgery for the purpose of coronary artery bypass grafting (CABG), prosthetics of valves and elimination of aortic defects, was held. Typical and donozological forms of HAI were taken into account in accordance with the epidemiological standard definition of cases.

Results. The incidence rates of typical and donozological forms of HAI in average was 39.6 and 72.7 per 1000 operations. The maximum incidence of HAI was detected after aortic surgery due to urinary tract infection (UTI) and hospital-acquired pneumonia.

Conclusions. It was found that the increased incidence of UTI and hospital-acquired pneumonia after aortic surgery is contingent on a longer cardiosurgical operations and, accordingly, a longer stay of patients in the Department of anesthesia and resuscitation, accompanied by artificial ventilation and catheterization of the bladder, than in other cardiac operations
Beyond the Individual Body
Authors: Sticchi Francesco
Published: November 2020

Since the emergence of embodied cognitive theories, there has been an ever-growing interest in the application of these theories to media studies, generating a large number of analyses focusing on the affective and intellectual features of viewers’ participation. The body of the viewer has become the central object of study for film and media scholars, who examine the conceptual physicality of the viewing experience by associating body states with parallel intellectual and moral constructions. In this article, I contribute to the study of embodied cognition and cinema by drawing upon Baruch Spinoza's philosophy, especially from his process-based notion of the body. I will put this ecological and dynamic concept of the body in connection with recent studies on enactive cognition, and define a radical enactivist approach to be applied in the discussion of the experiential dynamics of Lynne Ramsay'sYou Were Never Really Here.
PENGARUH RASIO UMPAN, VARIASI JENIS SAMPAH ORGANIK, DAN KUALITAS KOMPOS HASIL BIOKONVERSI MENGGUNAKAN LARVA BLACK SOLDIER FLY (Hermetia Illucens)
Authors: Haryandi Haryandi , Izzy Syauqy Nur
Published: November 2020

One technology that can degrade organic waste is bioconversion using Black Soldier Fly (BSF) or Hermenetia illucens which content high protein source. This research studied the effect of BSF production withg varying feed rate, type of waste, and the quality of compost that produced compare with the Indonesia government requirement. The experiment was conducted at PT. Biomagg Sinergi Internasional, an organic waste processing company in West Java. The results of this study indicated the highest BSF biomass value in the treatment of catering with feed rate of 200 mg/larvae/ day, the highest substrate consumption value was on fermentation waste with feed rate 100 mg/ larvae /day is 72.05%, the highest survival rate was the catering waste with feed rate of 100mg/larvae / day, and the highest value of waste reduction index was the fermentation waste with 100 mg / larvae / day feed rate is 4.80%. The quality of compost produced by bioconversion conducted by PT. BSI has met the quality standards of organic fertilizers based on Permentan No. 70 / Permentan / SR.140 / 10/2011 concerning organic fertilizer.
PENGARUH PENAMBAHAN EKSTRAK BELIMBING WULUH (Averrhoa bilimbi L.) TERHADAP KARAKTERISTIK FISIK, MASA SIMPAN, DAN ORGANOLEPTIK PERMEN JELLY DAUN KERSEN
Authors: Setiawati Veni Rori , Sari Puspita
Published: November 2020

Jelly is a candy made from components of water or fruit juice, flavor, sugar, and gelling ingredients. Apart from fruit juice, jelly candy can be made from the basic ingredients of leaf extracts. One of the leaves that can be used is Muntingia calabura L. leaves. The existing jelly candies generally do not use natural ingredients as colorings and flavors. Fruits that can be used as natural ingredients in making jelly candy are Averrhoa bilimbi L. This study aims to determine the effect of adding starfruit extract to the physical quality, shelf life, and organoleptic of Muntingia calabura L.  leaves jelly candy. This study used a Completely Randomized Design (CRD) with 1 factor, namely the concentration of Averrhoa bilimbi L extract (0%, 5%, 10%, 15%, and 20%). The results of this study indicate that the addition of Averrhoa bilimbi L extract does not significantly affect the physical quality (color) of Muntingia calabura L. leaves jelly candy. In the shelf life test, the addition of Averrhoa bilimbi L extract gave a real effect, where the best treatment was the concentration of Averrhoa bilimbi L. extract 15% and 20%. In the organoleptic test, the addition of Averrhoa bilimbi L extract did not significantly affect the level of preference (hedonic) and the level of acceptance (scoring) of the texture, but it did affect the level of panelist acceptance of the color, aroma, and taste of Muntingia calabura L.  leaves jelly candy. The best treatment of panelist acceptance level for color is at a concentration of 0% producing jelly candy with a yellowish-brown color and the best aroma and taste of jelly candy at a concentration of 20% producing jelly Averrhoa bilimbi L -flavored jelly candy with a slightly bitter sweet taste with a slightly bitter sweetness.
Science Teachers’ Reflective Practices: Perspectives and Attitudes
Authors: Aldahmash Abdulwali H.
Published: November 2020

ABSTRACT Studies investigating reflective practices among teachers have focused on reflective practice use in teaching and teacher’s professional development. The attitudes of teachers toward reflective practices have been neglected, but the attitudes of science teachers toward reflective practices are key to their effective use in classroom settings. This study aimed to understand the attitude of science teachers toward these practices and how they implement professional reflective practices as well as any relationship between reflective practices and attitudes. A sample of 650 science teachers, 321 males and 329 females completed the questionnaire. Results revealed that science teachers practiced all reflective activities at high levels. Additionally, their attitudes toward reflective practices were moderately positive. Pearson correlation coefficients for the relationship between the reflective practices and attitudes of science teachers were statistically significant at p d” 0.01. Hence, science teachers who had positive attitudes toward reflective practices were likely to demonstrate more reflective teaching in their educational careers.
Analysis of the current level of technology and engineering development of coolant filtration in automotive and tractor engines
Authors: Dragomirov S. G , Dragomirov M. S , Eydel P. Ig , Gamayunov A. Y
Published: November 2020

The article analyzes modern technologies and means of filtering (cleaning) the coolant of automobile and tractor engines. A critical and still unresolved problem of contamination of the coolant and engine cooling systems in general is considered. A general assessment of existing filtration technologies and devices is given. All filtration devices are divided into three groups and an analysis of their principal disadvantages and advantages is given for each of the groups. It is shown that foreign filter designs do not perform the filtration function so much as they serve as carriers of special chemical additives to improve the physical and chemical properties of coolant. In principle, these filters cannot be full-flow, because if they are completely clogged, the circulation of coolant will stop. In general, technologies for filtering of coolant through porous materials (microporous cardboard, chemical fibers) or metal grids cannot be considered promising. This is justified by the fact that in the process of cleaning the coolant, filter elements of this type quickly become clogged and significantly reduce the amount of coolant passed. In the extreme case, they stop passing coolant at all. Also, due to rapid contamination, such filters need to be replaced or cleaned. A new concept of a modified hydrocyclone coolant cleaning and a hydrocyclone filter-separator developed on its basis (protected by the RF patent for invention No. 2625891) are considered. The comparison of competitive indicators of the developed hydrocyclone filter-separator with foreign analogues is given. Hydrocyclone filter-separators have a lof of fundamental advantages: high productivity and continuous operation; extremely simple design; the absence of the filter element itself, etc. The conclusion is made about the prospects of this approach to solving the problem of cleaning the coolant of engines of cars, buses, tractors, road construction and forestry machines, agricultural and army equipment, etc.
Influence of the shape of potato tubers on the quality of separation into fractions by the working bodies of potato sorting machines
Authors: Romanyuk N. N , Yednach V. N , Voynash S. A
Published: November 2020

Many agricultural producers are faced with problems of sorting flat and oval potato tubers into size fractions using roller sorting surfaces. The paper studies the influence of the shape of potato tubers on the speed of their orientation relative to the calibrating holes, and, as a consequence, the performance indicators of machines and the quality of the process performed. The aim of the study is to determine the causes of damage to tubers during sorting and ways to eliminate them. There was substantiated the relationship between the kinematic parameters of the roller surfaces of potato sorting machines and the shape of tubers, which makes it possible to reduce damage and improve the quality of sorting potatoes into fractions. A number of experiments were carried out to determine the relationship between the shape of tubers and the kinematic parameters of the roller surface. In the first experiment, the number of tubers that will pass through the calibrating slot in a certain time was determined at different gear ratios in the drive of the rollers of the calibrating surface. In the second experiment, the time was found for a certain number of tubers of various shapes to pass through the calibrating surface. The graphs of the experimental dependences of the number of tubers of 43 mm thick passed into the calibrating gap between the rollers of 42 mm in 5 seconds on the ratio of the peripheral speeds between the rollers are presented. And the graphs of the dependence of the change in the time of passage of a group of tubers with a thickness of 40 and 42 mm through the gap between the rollers with a width 42 mm from the ratio of the peripheral speeds between the rollers are given. Based on the carried out studies, it was found that the ratio of the peripheral speeds of adjacent rollers, forming the calibrating slot, have a significant effect on the quality of the separation of tubers into fractions and are the cause of damage influenced by deformation. The presented analysis makes it possible to assess the influence of the shape of the tuber on the quality of the separation of tubers by roller calibrating surfaces of potato sorting machines, and also indicates the ways of improving the design of equipment for the finalization of potatoes after harvest and before sale.
Determination of the specific soil resistance using deep subsurface tillage in conditions of Northern Kazakhstan
Authors: Kuvayev A. N
Published: November 2020

The paper proposes a method for determining specific soil resistance and presents the results of the conducted research. One of the main limiting factors in determining the working width of the tillage implement is specific soil resistance. This indicator is a quantitative characteristic of the labor intensity of soil tillage. Therefore, when designing new machinery, it is necessary to have reliable data on its value. The data presented in the scientific literature on the value of specific soil resistance are average and do not take into account the parameters of tillage working tools. Therefore, the determination of specific soil resistance for working tools with known parameters is the current topic of scientific research. The purpose of the research is to determine the value of specific soil resistance for working tools with known parameters. The research method consists of the experimental determination of the total draft resistance of the tillage implement and further mathematical processing of the experimental data obtained on the basis of the rational formula of V.P. Goryachkin. To conduct experimental research, a laboratory unit was developed, the design of which eliminates the impact of its weight on the draft resistance, arising from the friction between the parts of the working tool and soil. It was found that for the soils under consideration, which are typical for Northern Kazakhstan, the specific soil resistance is k = 45908 N/m2. The obtained coefficient of variation υ < 10 % indicates a slight change in the considered variation. Therefore, the obtained value of the specific soil resistance is reliable. The results obtained will be used to substantiate the working width of the tillage implement with the working tools under consideration.
Efficiency of Asean-5 Markets: An Detrended Fluctuation Analysis
Authors: Dias Rui , Heliodoro Paula , Alexandre Paulo
Published: November 2020

This study intends to analyse efficiency, in its weak form, in the financial markets of Indonesia, Malaysia, Philippines, Singapore, Thailand (ASEAN-5), and China, during the global pandemic (Covid-19). Different approaches have been undertaken to carry out this analysis in order to determine whether: (i) ASEAN-5 financial markets and China are efficient, in their weak form, during the analysis period? The results indicate that the random walk hypothesis is rejected in all markets. The values of the variance ratios are, in all cases, lower than the unit, which implies that the returns are autocorrelated over time and, there is a reversion to the average, in all indices. In corroboration, the exponents Detrended Fluctuation Analysis (DFA), indicate significant long memories with a larger incidence in the Philippines and Singapore markets, however the Chinese market evidences anti persistence. These results demonstrate that stock prices do not completely reflect the available information and that stock prices movements are not i.i.d. This has implications for investors, as some returns can be expected, creating opportunities for arbitrage and abnormal returns, contrary to the assumptions of random walk and information efficiency. These conclusions also allow market regulators to implement measures to ensure better information in these regional markets.
Caracterización química y microestructural de escoria de alto horno
Authors: Gill Blanca , Martínez-Pavetti Belén , Monteiro Magna
Published: November 2020

La escoria de alto horno es un subproducto de la producción de hierro y acero, cuyas características fisicoquímicas están  influenciadas por el tipo de proceso de producción aplicado. Además, su composición química depende de las materias primas utilizadas, siendo las más comunes el mineral de hierro, el coque y la piedra caliza. La escoria puede solidificarse en cuatro formas diferentes: cristalizada, granulada, pelletized y expandida. La escoria cristalizada obtenida de la producción de altos hornos se estudió en este trabajo. Esta escoria tiene una alta porosidad y una resistencia mecánica reducida en comparación con otras escorias. Las muestras fueron sometidas a tratamientos térmicos a 860, 960 y 1060 °C por una hora. Estas muestras fueron caracterizadas por difracción de rayos-X (XRD), espectrometría de infrarrojos con transformada de Fourier (FTIR), fluorescencia de rayos-X (XRF) y microscopia electrónica de barrido/EDS. Con base en los resultados, fue posible predecir el comportamiento de la cristalización de la escoria a diferentes temperaturas de calcinación e identificar las fases presentes en cada máximo de temperatura. Este trabajo tuvo como objetivo caracterizar la escoria de alto horno, residuo de la producción de acero de la Compañía Acepar, con el fin de proponer una aplicación de mayor valor agregado, relacionada con la producción de cerámicas avanzadas.
Editorial
Authors: Rojas de Arias Antonieta
Published: November 2020

Junto a la Sociedad Científica del Paraguay, su revista, cumplirá en breve 100 años de existencia. Su historia rica en conocimientos lo es también en vicisitudes, reflejadas en los editoriales que daban inicio a las diferentes épocas por las que ha pasado. Este editorial cuenta, al igual que los que nos precedieron, sobre el inicio de su cuarta época.