bluuebunny/crossref_metadata_2025 huggingface dataset:
Slug flow em riser de extração de petróleo em águas profundas: uma análise numérica profunda e proposta de diagnóstico
Authors: Conrado Priscilla Perussolo Cunico , Mishina Koje Daniel Vasconcelos , Rodrigues Marcelo Cavalcanti
Published: September 2022

O slug flow em risers de extração de petróleo em águas profundas é um fenômeno amplamente conhecido por seu potencial destrutivo nos casos em que esse efeito se torna extremo, fazendo com que a pressão se acumule e, consequentemente, origine o fluxo de pressão oscilante. Esse tipo de escoamento ocorre devido à característica multifásica na extração do óleo, formada geralmente pelas fases óleo e ar (gás). Ao longo de toda a história da extração de petróleo, o controle e reconhecimento desse padrão de fluxo gera desafios à engenharia de poços, e ainda hoje o método de mitigação e controle utilizado é subjetivo e dependente da experiência do operador de sonda. A proposta deste artigo é apresentar uma ferramenta de diagnóstico utilizando inteligência artificial a partir das informações de variação de pressão (velocidades de escoamento) coletadas pelos sensores do BOP (Blow Out Preventer) para o reconhecimento do fluxo de golfadas (slugging). Para analisar o slugging em toda a sua faixa e variação de velocidades, aplica-se uma análise numérica fluidodinâmica computacional (CFD) utilizando o software ANSYS Fluent. Os mapas identificadores dos tipos de escoamento devidos à velocidade de escoamento das fases, amplamente aceitos na literatura pertinente, foram utilizados para validar os resultados encontrados na análise CFD, comprovando que o modelo implementado neste estudo está em consonância com o fenômeno real. Os resultados obtidos foram usados para gerar um banco de dados que possibilitou o desenvolvimento de uma rede neural para diagnóstico de slugging. Algumas maneiras de controlar ou mitigar o slugging pesado também são discutidas.
Enhancement of Optical Parameters for PVA/PEG/Cr2O3 Nanocomposites for Photonics Fields
Authors: Mohammed Musaab Khudhur , Abbas Mohammed Hashim , Hashim Ahmed , Rabee Bahaa H. , Habeeb Majeed Ali , Hamid Noor
Published: September 2022

In this study, many samples have been synthesized by using solution casting technique with different additive content of Chromium oxide nanoparticle (Cr2O3NPs), poly vinylalcohol (PVA) and polyethylene glycol (PEG). The UV-Vis. spectrophotometer used to record the absorbance spectrum in the range of (200-800) nm. The absorption of UV waves is improved while the transmittance is reduced when Cr2O3 NPs were added to the polymeric system which are useful for a number of applications including low-cost UV protection and solar radiation shield. When Cr2O3 NPs concentrations increased, the optical energy gap for indirect transition (allowed and forbidden) was decreased. Furthermore, all the optical constant has been improved.
Artificial Intelligence Model for Prediction of Local and Main FALL in caving Panel of Bord and Pillar Method of Mining
Authors: Bilash Prajapati Ram , Kumar Sinha Rabindra , Gupta R. N. , Kumar Sikandar , Prajapati Deepti
Published: September 2022

Depillaring with caving method of mining is a common practice in Indian coalfields and so is the occurrence of fall in goaf area, which can be considered as a boon in disguise as it allows wining of coal from large reserves but this becomes a curse just because of its unpredicted occurrence. Various empirical and statistical models are developed after idealization of several complicated mechanisms but they are not able to predict roof fall accurately especially in caving panels. Therefore, a new approach based on Artificial Intelligence is used to predict the sequence of local and main fall in caving panel taking into account a host of geotechnical and mining parameters of the mine. Mathematical equations and hidden calculations of artificial neural networks are known to have the capability of learning and analyzing records endlessly. Two different models have been deployed after optimal hyper parameter optimization to predict the occurrence of fall and to characterize the nature of fall (local or main) with considerable and reliable accuracy.
A Numerical Modelling Approach to Find the Stability of RIB and Snook in Mechanised Depillaring Panel — A Case Study of Kurja Mine
Authors: Samanta Subrata , Kumar Sinha Rabindra , Baran Chakrabarty Pulak , Kumar Hemant
Published: September 2022

Depillaring by conventional techniques created many irregular shaped pillars, mainly located at shallow depths in different coalfields of India. Continuous Miner Technology (CMT) has been introduced to extract these coal pillars scientifically with safety and productivity with greater depth. Leaving a proper sized rib or snook is a legal requirement as it decides the efficiency and safety of the pillar. However, CMT of square/rectangular shaped pillars created irregular shaped rib and snook. With the conventional empirical formula it is difficult to estimate the strength of such ribs or snooks. These ribs or snooks should be of sufficient size to protect the adjacent slicing operation and junction as well as they should fail in a controlled manner when machines shift inside the extraction. Field studies of different mines found several factors affecting the design of rib or snook. They are various types of induced stress, geological disturbances, manner of extraction etc. Proper assessment of the performance of different sizes and shapes of ribs and snooks in the field is complex due to the problematic underground mining environment for depillaring. For successful operation of the CMT required to study every depending parameter scientifically. Therefore, a numerical model is conducted to estimate the factor of safety of rib and snook to calculate the rib and snook stability. Results of field and simulation studies are presented and discussed in this paper to determine the rib’s stability in the continuous miner panel to create a safe environment for the men and machines.
How Aluminum Industries can Get Involved in Environmental Stewardship
Authors: Bbhattacharya Jayanta
Published: September 2022

No Abstract.
Women Leaders of the Mining Industry
Authors: Bhattacharya Jayanta
Published: September 2022

No Abstract.
Wear Behaviour Of Modified ZA-27 Alloy: A Statistical Analysis
Authors: Hulipalled Poornima , Algur Veerabhadrappa , Lokesha V. , Naveen S.
Published: September 2022

This contemporary work has mainly engrossed on optimization of wear loss of modified zinc aluminium (ZA- 27) alloy with varying inputs like sliding speed, normal load, and sliding distance were used to conduct dry sliding wear experiments on a friction and wear testing equipment. The experiments were designed using a Taguchi mixed design L16 (4^2 ^1) orthogonal array. The impacts of wear feature (input) on wear loss (output) of ZA-27 alloy were deliberated using Taguchi and ANOVA. Best parameters for minimum wear loss are a normal load of 9.81N, a sliding speed of 2 m/s, and a sliding distance of 2500m, according to the findings. The contributions of sliding distance, sliding speed and normal load were 0.07%, 6.01% and 81.48%, respectively, according to ANOVA. For the modified ZA-27 alloy, Taguchi and ANOVA results reveal the same influence order. At higher loads and speeds, the worn surface reveals that the sub-surfaces fractured and broken, forming a platelike structure of wear debris.
Optimization of AL2O3 Concentration In Water Based Nano Fluid To Enhance The Heat Transfer For Solar Application
Authors: Basavaraj Kusammanavar , Elangovan K. , Shankar S.
Published: September 2022

Nano-fluid is a suspension of nano particles in the base fluids like water to enhance heat transfer. Nano-fluids is a class of fluids used for the cooling and heating process. This paper reports an investigation of the optimum concentration of AL2O3 in water for solar application based on stability checking using the zeta potential method. In this study, computational fluid dynamics analysis was performed using the Ansyss Fluent software for the different concentrations. Results are analyzed, and simulated result shows that heat transfer coefficient increases as concentration increase, and for a given geometry, Nusselt number rises as Reynolds number rises, which is used for the solar application.
Bearing Fault Classification Using Statistical Features And Machine Learning Approach
Authors: Manjunatha G. , Chittappa H.C.
Published: September 2022

Bearing degradation is the most common source of faults in machines. In this context, this work presents a monitoring scheme to diagnose bearing faults using machine learning approach. In this approach classification of healthy and faulty conditions of the bearing is carried out using artificial neural network (ANN). A set of statistical features are extracted from the acquired vibration signals. The decision tree technique is used to select significant features out of all statistical extracted features. The selected features were classified using different classifiers. Based on the various classifier results obtained, the ANN classifier achieve the maximum classification accuracy which is recommended for online monitoring and fault diagnosis of the bearing in various machines.
Effect Of Tool Pin Profiles On Surface Roughness Of Friction Stir Welded 2050-T84 Al-Cu-Li Alloys
Authors: Kumar Sanjeev , Sethi Durjyodhan , Choudhury Smrity , Das Rahul , Saha Subhash Chandra , Roy Barnik Saha
Published: September 2022

The third generation of Al-Li alloy is a significant material, primarily applicable in the aerospace sector due to its low density, high strength, and increased fatigue crack growth resistance properties. In this study, three tools with different pin geometries, such as triangular, threaded taper, and hybrid tool pins (coupled triangular and threaded taper), are used to join Al-Li alloy at a specific set of process parameters to assess the tool design affects the joint’s surface roughness (SR) and tensile strength. The surface roughness values of the friction stir welded samples were measured on different sides [advancing side (AS), retreating side (RS), AS to RS, and the weld centre (WC)]. At the same rotational speed (1400 rpm), welding speed (180 mm/min), and tilt angle (2°), the experimental results revealed that the HTP weld has a lower surface roughness value than other tools while having higher joint efficiency (78.44%) and tensile strength (418.98MPa).
Study On Partial Replacement Of E-Plastic Waste As Coarse Aggregates
Authors: Roopa M. , Das Sriraksha R. , Sanjana M. , Thungashree B. S.
Published: September 2022

The electronics sector has been experiencing fast expansion, owing to constant technological advancements and the introduction of new technologies to the market. As a result, e-plastic waste has become one of the world’s fastest growing solid wastes. This paper outlines the experimental work carried for the partial replacement of e-plastic in volumes of 5%,10%,15% and 20% as coarse aggregates. On hardened concrete, strength tests were performed. The results reveal that using e-plastic waste as coarse aggregates results in concrete that is substantially more workable and less dense. This research presents a costeffective, environmentally acceptable, and efficient disposal solution for e-plastic waste, which can be used as a partial replacement for coarse aggregates in concrete. Researchers have recently begun to examine an alternate source of aggregate in concrete by employing e-plastic waste as a building material, which increases the water retention characteristic of new mortar while lowering the bulk density of hardened mortar.
Dynamic Behaviour Of Geodesic Dome Structure For Different Time Histories
Authors: Roopa M. , Priyanka V. , Venugopal H.
Published: September 2022

Earthquake is caused by a sudden release of energy in the earth’s crust, which causes seismic waves. The most significant effects of earthquakes are ground shaking and rupture. It has both social and economic effects, such as causing death and injury to creatures, including humans, and may damage the natural and build environment. It is critical to comprehend the loss of life and damage to structures caused by ground motion. So, the ground motion characteristics are to be studied keenly on any structure in the design process. In the present study different time histories are used to perform dynamic analysis of a geodesic dome using the analytical approach. The results like base shear and joint displacements are obtained with respect to the ground motion time period.
An Overview Of Direct Metal Laser Sintering (DMLS) Technology For Metal 3D Printing
Authors: Humnabad Prashant S. , Tarun R. , Das Indraneel
Published: September 2022

Additive manufacturing is the process of building a component or a product layer-by-layer, as opposed to casting the component and then performing various subtractive machining processes like turning, drilling, milling which are the approach of subtractive manufacturing. The term 3D printing refers to the family of additive manufacturing processes, which utilize different mechanisms in order to build the product from a sliced computer aided design (CAD) model fed to the machine. direct metal laser sintering (DMLS) is the one method of 3D printing functional metal parts are suitable for engineering applications and has the potential to provide a viable alternative to conventional methods of manufacturing and produce superior quality components with great flexibility in design using a wide range of materials. This paper presents the overview of DMLS technology, process parameters, design considerations, case studies of parts manufactured by DMLS and its applications in metal casting and rapid tooling.
Optimal Design Of Smart Grid Renewable Energy System Using Homer Programme
Authors: Siddaraju C. , Deepak S. , Balasubramanya H. S.
Published: September 2022

Smart grid is a network created through information technology, communication technology and electrical power systems. It is simply a “smarter” power grid which ensures a two-way communication between user and the power supplier. This work proposes a smart microgrid design hybrid renewable energy system based on solar, grid and wind energy resources. The optimization has been performed using homer software programme to get the best and optimal operation system. Hybrid system combines several energy systems together which offer increased energy reliability and security, and carry a large economic opportunity in terms of cost saving. A typical microgrid system would also include intelligent management that interfaces with the equipment via wired or wireless communication protocols. In the present work the optimization model has been developed for the optimal operation of the system. The modelled system collects meteorological and load data from a town. The optimal hybrid system design is realized by satisfying the load demand, nonlinear seasonal variations and equipment constraints. The main focus of the system is on operation of smart microgrids to maximize usage of green energy, reduction of environmental emissions, decrement of levelized cost of electricity and intelligent management of overall system.
Bearing Fault Classification Using Statistical Features And Machine Learning Approach
Authors: Manjunatha G. , Chittappa H. C.
Published: September 2022

Bearing degradation is the most common source of faults in machines. In this context, this work presents a monitoring scheme to diagnose bearing faults using machine learning approach. In this approach classification of healthy and faulty conditions of the bearing is carried out using artificial neural network (ANN). A set of statistical features are extracted from the acquired vibration signals. The decision tree technique is used to select significant features out of all statistical extracted features. The selected features were classified using different classifiers. Based on the various classifier results obtained, the ANN classifier achieve the maximum classification accuracy which is recommended for online monitoring and fault diagnosis of the bearing in various machines.
A PERCEPÇÃO DA LIDERANÇA SOBRE A PRODUTIVIDADE NO TRABALHO HÍBRIDO: UM ESTUDO DE CASO NO SETOR BANCÁRIO
Authors: Viana Luciane Pereira , Chitó Ricardo Ã‰fren , Hoffmeister Deise
Published: September 2022

A partir do início de 2020 ocorreram mudanças no cenário corporativo em virtude da pandemia COVID19. O objetivo deste estudo é comparar a percepção dos gestores comerciais e técnicos do setor bancário quanto a produtividade no trabalho híbrido. Foi elaborado através de uma pesquisa quantitativa e descritiva, com levantamento Survey e aplicação de questionário de forma on-line em novembro de 2021. Foram pesquisados 51 líderes comerciais e técnicos. Observa-se diferenças entre as percepções dos líderes comerciais e líderes técnicos, por exemplo, os líderes comerciais indicam que o contato pessoal é o aspecto mais importante para a produtividade, enquanto os líderes técnicos apontam aspectos ligados a qualidade de vida e conforto como primordiais.
The expression of microRNA-197-3p regulates the proliferation of ovarian granulosa cells through CUL3 in polycystic ovarian syndrome
Authors: Shen Xianhua , Gong Aidong
Published: September 2022

MicroRNAs (miR) have been shown to exhibit marked dysregulation in polycystic ovarian syndrome (PCOS). Additionally, granulosa cell proliferation and apoptosis are important in PCOS pathogenesis. Considering this, the current study aimed at characterization of the regulatory function of miR-197-3p on the growth and proliferation of ovarian granulosa cells at the molecular level. The results showed that miR-197-3p is significantly repressed (P<0.05) in PCOS tissues and granulosa cells. Granulosa cell proliferation was significantly (P<0.05) inhibited by miR-197-3p overexpression via induction of apoptosis. In silico analysis predicted cullin 3 (CUL3) as the regulatory target of miR-197-3p, which was also confirmed by the dual luciferase reporter assay. CUL3 was overexpressed in KGN ovarian granulosa cells, and its silencing mimicked the tumor suppressive effects of miR-197-3p. Taken together, miR-197-3p exhibits a negative regulatory role in regulating granulosa ovarian cell proliferation via posttranscriptional repression of CUL3 in PCOS.
Factors Influencing Audit Quality of Banking Business Sector in Indonesia
Authors: Handoyo Sigit , Putri Ayu Septiana
Published: September 2022

Improved audit quality is needed to increase investor’s confidence in a company's financial statements. Competence and independence are requirements to produce a quality audit. This study is a quantitative study that aimed to analyze the effect of audit tenure, time budget pressure, firm size, and auditor specialization on audit quality. The population and data in this study comprised banking companies listed in the Indonesia Stock Exchange (IDX) in 2015-2019 and were obtained using the purposive sampling method. Earnings surprise benchmark was used as a measure of audit quality in this study with logistic regression analysis method as the analysis method. The results of the study indicated that audit tenure and time budget pressure did not provide an increase in audit quality. While the size of the company had an effect on the decline in audit quality significantly, the auditor specialization greatly improved audit quality. The implication of this research proves that to maintain audit quality, auditors must always maintain and improve their professional qualifications and plan more mature audits on audit work in larger companies.
The Strategy of Religious Culture in Shaping Student Character at MAN 1 and MAN 2 Tulungagung Indonesia
Authors: Mualim  , Akhyak  , Syafi'i Asrop
Published: September 2022

This research is motivated by a religious culture that is built and realized to instill values ​​into students.  Religious character culture is one method of comprehensive value education.  In its embodiment, there is the inculcation of values, setting an example, and preparing the younger generation to be independent by teaching and facilitating responsible moral decisions and other life skills.  The question of this research is how the strategy of implementing religious culture shapes students' character in MAN 1 and MAN 2 Tulungagung.  This research uses a qualitative multi-site study approach.  Data collection techniques used include in-depth interviews, participant observation, study documentation.  The data collected were analyzed through the three techniques from a single site and cross-site analysis.  At the time of data collection, the data was obtained and tested using the triangulation method and the persistence of observation and validity of the data.  The results of this study indicate that the strategy for implementing religious culture in shaping students' character is carried out by a) Applying habituation with the habituation carried out within the individual will be faster to understand and understand religious culture contained in daily actions.  b) Providing exemplary;  c) Togetherness in religious civilizing activities.
Plastic Littering and Waste Management in Pietermaritzburg, South Africa: Exploring the Snack-Food Consumer Littering and Responsibility towards the Environment.
Authors: Mapungwana (PhD) Pheyiye , Okoye (PhD) Felix
Published: September 2022

The study is located in the discipline of environmental ethics as it explores the snack-food (or plastic) littering and consumer responsibility towards the environment. The theory of consequentialism and Stewardship were used to provide ethical perspectives and background for the reconstruction of the consumers’ social and moral responsibility towards the environment. The study applies mixed research approach. Focus group, interviews and questionnaire were used to collect data; whereas thematic and statistical analysis were used for data analysis. The study finding shows (1) an increased plastic littering in the Pietermaritzburg city; (2) consumers’ indifference towards plastic littering and shifting of cleaning responsibility to the government; and (3) the household plastic-littering consumers indifference towards the consequences of plastic littering to the environment, and the escalating government expenditure towards environmental management. The study recommends an intensified civic responsibility campaign, and anti-littering strategies that can ethically (in)form consumer consciousness and responsibility towards the environment. It also recommends the government to develop a robust policy to control plastic littering. The government must promote a shared sense of responsibility towards the environment by integrating the plastic-producing industries and business dealers into the overall waste management plan. Encouraging plastic recycling businesses must was also recommended.
Using Excess Functions to Simulate Vapour Pressure in Binary Non-Electrolyte Solutions
Authors: Mitrofanov M.S. , Ananyeva E.A. , Sergievskii V.V.
Published: September 2022

The paper considers simulating thermodynamic properties of completely miscible binary non-electrolyte solutions characterised by a positive deviation from ideality due to association concerning one of the solution components in general. We used a cluster-based mathematical model. The paper provides a cluster model equation to describe concentration dependences of vapor pressure over the solution as functions of the liquid phase composition. The model equation parameters are the expected value of associate distribution in the standard state and the variance of associates. We present a formalised method for simulating vapor pressure using concentration dependences of excess molar characteristics of the mixture as functions of the liquid phase composition. We derived concentration dependences of vapour pressure for binary solutions of alcohols in haloalkanes directly from the experimental data and analytically from the excess molar enthalpy and excess molar volume. These results, though derived by different methods, agree well with each other and appropriately describe vapor pressure concentration dependences as functions of the liquid phase composition. We demonstrate that varying cluster model equation parameters in a temperature range will successfully match patterns of association found in systems prone to hydrogen bond formation
Describing Non-Axisymmetric Elastic Fields Generated by Volume Forces in Anisotropic Solids of Revolution
Authors: Ivanychev D.A. , Levina E.Yu.
Published: September 2022

The paper presents a technique for plotting elastic fields in transversely isotropic bodies bounded by coaxial surfaces of revolution, subjected to non-axisymmetric volume forces. Our theory uses the ideas of the boundary state method, which is based on state spaces describing a medium. Fundamental polynomials form the basis of the internal state space. A polynomial is placed in any displacement vector position in a planar auxiliary state, then transition formulas can be used to determine the spatial state. A set of such states forms a finite-dimensional basis that is used after orthogonalisation to expand the desired elastic field characteristics into Fourier series with identical coefficients. These series coefficients are dot products of given and base volume force vectors. The search for an elastic state is reduced to solving quadratures. We provide guidelines for constructing an internal state basis depending on the type of volume forces given by various cyclic functions (sine and cosine). We analysed a solution to a specific theory of elasticity problem concerning a transversely isotropic circular cylinder subjected to non-axisymmetric volume forces. We analysed the series convergence and graphically evaluated the solution accuracy
Numerical Simulation of Interaction Between a Passenger Car Airbag and an Anthropomorphic Dummy Model
Authors: Gonsales A.A.V. , Goncharov R.B. , Petyukov A.V.
Published: September 2022

The paper considers a finite-element numerical simulation of interaction between an airbag and an anthropomorphic dummy model, presenting a case study of a passenger car subjected to oblique frontal impact, as per UN passive safety Regulation no. 94. A system of conservation equations for mass, impulse and energy forms the basis of the simulation. We used a penalty method as a contact algorithm. We investigated three situations: 1) one including the seat belt and the airbag; 2) one including the belt but not the airbag; 3) one including the airbag without the belt. The airbag simulation took into account the specifics of its deployment process and its position within the steering wheel. The seat belt simulation included simplified models of the retracting and locking devices. The computation results showed that our finite-element numerical simulation of interaction between the airbag and the anthropomorphic dummy model makes assessing the test device injury rate possible; absence of either the seat belt or the airbag may result in death due to oblique frontal impacts; if the design only includes an airbag, collisions between the anthropomorphic dummy model and the interior car parts will not be prevented; a design providing both an airbag and a seat belt meets the basic requirements of UN passive safety Regulation no. 94
"Glee" jako telewizyjny post-musical
Authors: Mucha Patrycja
Published: September 2022

Musical as a genre is almost a dead form nowadays. However, there are a few authors, who have an ambition to bring back to life this almost-dead genre. One of the most interesting propositions in this area is “Glee”, which is a television realization of musical. “Glee” is a very special culture-based text, because it tells about gender stereotypes, cultural standards and an influence of education on young generations using entertaining form of tv series. It is also a production, which denies most characteristics of teen movie as a current and breaks traditional structure of musical, exposing its backstage realization. Moreover, “Glee” is a series, which comments itself as a form and disturbs usual rhythm of musical productions. Authors of this series have created a product which contains huge amount of intertextuality and reminds not only particular movies, but also different conventions. Episodes have been made as if they were horror, surreal movie and other great conventions from whole history of cinematography.
Musical, porno czy porno-musical. Rzecz o "9 songs" Michaela Winterbottoma
Authors: Żebrowski Mateusz
Published: September 2022

The paper focuses on a convergence of the genres in M. Winterbottom’s “9 songs”. The author describes the conventions of musical and porn to show its functionality in the British director’s movie. Simultaneously author presents the depth analysis of a relation between music and images in “9 songs”. For this purpose the author uses the L. Williams and A.G. Piotrowska theories. The final conclusion leads to an observation that the convergence of the genres in Winterbottom’s film lets show the way we perceive relationships (G. Deleuze) and its transience.
Current Scenario of Crop Improvement of Finger Millet [Eleusine coracana (L.)] in India: A Review
Authors: Nagaraja T.E. , Bhat Sujata , Nandini C.
Published: September 2022

Finger millet [Eleusine coracana (L.) Gaertn.] is an ancient and important millet crop of India. The crop is predominantly grown as rainfed crop in the peninsular Indian states. The crop has shown numerous advantages over major cereals in terms of stress adaptation, nutritional quality and health benefits. Finger millet is highly self pollinated crop. Hybridization in finger millet is difficult due to small cleistogamous florets. Presently hot-water treatment followed by contact method of crossing is widely used across institutes for generating breeding populations. The availability of versatile male sterile systems could enhance hybridization in the crop. A novel male sterile line PS1, developed and maintained just by growing in isolation and thus improving its accessibility for hybridization. The varieties in finger millet released over a period of time were by adapting hybridization followed by selection. Till now, a total of 141 varieties of finger millet have been developed and released in the country. Finger millet occupies a prime position among millets. Realizing the nutritional importance, it is now in high demand. Knowledge on the improved production strategies right from selection of high yielding varieties to market led extension and extensive usage at national and global level has a vital role. The review, therefore, provided detailed information on hybridization methods, crop improvement and details of recently released varieties and their adaptation in finger millet.
A pesquisa em acervos e a preservação do patrimônio cultural pelo Condephaat em São Paulo
Authors: F.S.Wolff Silvia
Published: September 2022

O texto trata do processo empregado pela Unidade de Preservação do Patrimônio Histórico, estrutura técnica e administrativa de apoio ao conselho de preservação cultural oficial do Estado de São Paulo, Condephaat, de busca de estabelecimento de práticas para realizar tombamentos fundamentados em pesquisas temáticas, feitas a partir de consultas a acervos arquivísticos. As experiências empreendidas no âmbito do serviço técnico buscaram, à luz de métodos tradicionalmente empregados para constituição de séries museológicas, criar referências comparativas e explicativas para a constituição de parâmetros para as indicações de preservação pelo tombamento.
Print-based storybook in the mother tongue for teaching COVID-19 prevention in the Philippines
Authors: Arnilla Arvin Kim
Published: September 2022

The literature has shown that storybooks are helpful resources to teach young children about significant health, safety, and nutrition issues. The current project sought to produce a storybook about COVID-19 prevention written in the mother tongue (Akeanon) for young children using the Analysis-Design-Development-Implementation-Evaluation (ADDIE) model as a guide. In general, the mother tongue-based storybook is highly accepted by evaluators as they grasped the most significant intent in producing the resource, which is to instil staying at home to break the transmission of the virus and observe hygienic practices, primarily handwashing with soap and water. Additional information on COVID-19 signs and symptoms was also recommended to maximise its effectiveness for health teaching. While health literacy materials in English are welcome in the Philippines, the results of this project confirm that mother tongue-based instructional materials for COVID-19 are highly accepted, especially when validated resources are deemed helpful to raise awareness and encourage appropriate attitude and behaviour towards its prevention.
 
Keywords: ADDIE Model, COVID-19 prevention, instructional material, mother tongue, storybook
Students’ attitudes towards using English as a medium of instruction in scientific disciplines: Challenges and solutions
Authors: Almudibry Khaled
Published: September 2022

This study aims at exploring the challenges faced by university EFL students and the solutions which they use to overcome these challenges. Therefore, this study investigated non-English major learners’ attitudes towards the challenges associated with using English as a medium of instruction in scientific disciplines. Qualitative research methods were used involving the use of classroom observations, surveys and interviews to collect the required data. The results showed a positive perception with regard to the use of English as a medium of instruction (EMI) among the participants. In addition, based on the participants’ results, the research highlights four themes as presenting the greatest challenges. Suggestions and recommendations are made for enhancing the successful use of EMI.
 
Keywords: challenges; English as a medium of instruction; scientific disciplines IS THIS WHAT YOU MEAN?
The effectiveness of learning to improve students higher-order thinking skills
Authors: Shanti Made Rai Suci , Istiyono Edi , Munadi Sudji
Published: September 2022

Higher order thinking skills (HOTS) are expected to be skills needed now and in the future. Many learning strategies are applied to increase HOTS. Nonetheless, how effective is this in improving students’ HOT abilities? This study will examine how effective learning is to improve HOT skills. We used meta-analysis research techniques to analyse the research quantitatively. We selected 21 out of 60 articles from Google Scholar that used models, media and science learning assessments to improve HOT. Heterogeneity analysis (trim-fill, funnel plot approach and Z-value calculation) was used to prove the absence of publication bias. Forest plot analysis showed an average increase in learning effectiveness (0.32), with a moderate effect. It shows that the effectiveness of learning is supported by strategies of using media, methods and assessment. These factors are proven to increase the effectiveness of students’ HOT abilities.        

 

Keywords: HOTS, learning, meta-analysis.
Digital technologies integration in the classroom. A teacher’s perspective
Authors: Prodani Rafail , Çobani Silvja , Andersons Aigars , Bushati Jozef
Published: September 2022

This paper focuses on determining and analyzing the factors which lead high school teachers in southeastern Albania to integrate digital technologies in the classroom. For this purpose, a survey was conducted. Factor analysis was used to determine the factors and the Pearson correlation coefficient was used to analyze the correlation of these factors. This method proved to be stable and reliable and can be recommended for use in educational technology research. Based on the factors’ inter-correlations, an apparent result is that: a better knowledge of software applications positively influences teachers’ digital technology use and their self-confidence. It also increases teachers’ motivation to use digital technologies in the classroom. Competence seems to be the most relevant factor that influences teachers to integrate digital technologies in the classroom.

 

Keywords: digital technologies, competence, factor analysis, teaching, high school;
Development of acmeological competencies of future preschool organisation teachers
Authors: Anarbek Laura , Sarsenbayeva Gulnara , Uteubayeva Elmira , Abuova Nabat , Tolybayeva Zhanar
Published: September 2022

The research aimed to develop the acmeological competencies of future preschool organisation teachers. The research was applied in the spring term of 2021–2022. The study, which was carried out with the participation of 228 pre-service teachers, was carried out in the survey model. In the study, acmeological education was given to pre-service teachers with 4-week distance education. To collect data in the study, the ‘activating potential and competence’ data collection tool developed by the authors of the study was used. The findings collected from the data collection tool used in the research have been added to the research in the form of tables and comments. When the results obtained are taken into consideration, it is seen that the acmeological status of the pre-service teachers participating in the research was improved and they will use this field in their education.

Keywords: Acmeology, teacher candidates, distance education, potential data;
Formation of research skills of students through solving problems in teaching mathematics in primary classes
Authors: Luiza Rizayeva , Rabiga Kenzhebekova , Amina Amirova , Borashkyzy Akhatayeva Ulsana , Uaidullakyzy Elmira , Bakhytgul Smanova
Published: September 2022

This study aimed to create students’ research skills by solving problems in teaching mathematics in primary school classes and was designed according to this purpose. In this context, it is aimed to conduct a study on teaching mathematics to primary school students. The research was created and implemented in the 2021–2022 spring academic year. 296 primary school students voluntarily participated in the research. In the research, problem-solving training in mathematics teaching was given to the students participating in the study in the form of a 2-week online education. To collect data in the study, the ‘mathematics and problem-solving’ data collection tool, which was developed by the researchers and whose validity and reliability were obtained, was used. The data collection tool used in the research was delivered and collected by the online method. The analysis of the data was made by using the Statistical Package for the Social Sciences programme, frequency analysis and t-test, and the results were added to the research in the presence of tables. As a result of the research, it is seen that primary school students’ problem-solving situations improved with mathematics teaching and they enjoyed these methods and achieved positive results.

Keywords: Primary school students, teaching mathematics, problem-solving, distance education;
Development of communication skills of older preschool children through information technology
Authors: Saule Yerkebayeva , Sarsengul Jetpisbayeva , Ulbossyn Kyyakbayeva , Dolores Nurgaliyeva , Galiya Abilbakieva , Nazerke Shalkharbekova
Published: September 2022

The purpose of this research is to get the opinions of preschool teachers to improve the communication skills of preschool children through information technology. The phenomenological design, one of the qualitative research approaches, was used in the research. The participant group of the research consists of 62 preschool teachers who teach in various preschool educational institutions in the city of Nursultan, Kazakhstan. Research data were collected with a semi-structured interview form. As a result of the research, it has been determined that the majority of preschool teachers have a very high tendency to use information technologies. On the other hand, it has been determined that the majority of preschool teachers participating in the research have a medium level of competence in using information technologies. The majority of preschool teachers participating in the research stated that they sometimes use information technologies to develop children's communication skills. Preschool teachers participating in the research offered suggestions for teachers and schools about using information technologies in the development of children's communication skills. The majority of teachers suggested the creation of information technology-supported lesson programmes, the design of group projects and the creation of educational games. As for schools, the majority of teachers suggested creating classrooms with technological equipment in schools.

Keywords: Communication skills of preschool children, information technologies, teacher opinions;
Development of augmented reality-based learning models for students with specific learning disabilities
Authors: Wiliyanto Dian Atnantomi , Gunarhadi Gunarhadi , Anggarani Fadjri Kirana , Yusuf Munawir , Subagya Subagya
Published: September 2022

This study aims to develop a learning model based on augmented reality applications to overcome barriers to learning mathematics for Students with Specific Learning Disabilities (SLD) in Inclusive Schools. This study uses a 4D model with the development of an AR-based learning model involving ten expert validators, and the respondents employed in the analysis of data collection needs at the specified stage are 40 Special Education Teachers (STC) who teach SLD students in inclusive schools. The results of this study indicate that research on the achievement of the learning process shows that there is still hope and excellence in achieving the learning process desired by STC, where the learning process is still in the sufficient category level and necessary, as a learning medium in the learning process in the inclusive class. The validation test also shows that augmented reality application technology is included in the very good category, including the very good class. This augmented reality-based learning model is valid for use in the learning process in overcoming barriers to learning mathematics for SLD students in inclusive schools.

Keywords:  Augmented Reality, inclusive schools, mathematic, learning model, SLD
PELATIHAN PEMELIHARAAN KEBERSIHAN DAN PENYULUHAN KESEHATAN DI TANGERANG, BANTEN [WORKSHOP ON HYGIENE AND HEALTH CARE AT TANGERANG, BANTEN]
Authors: Sugata Marcelia , Sanjaya Astia , Victor Hans , Pinontoan Reinhard
Published: September 2022

Health is closely related to hygiene and nutritious food consumption. However, the practice of monitoring personal hygiene and consuming nutritious food has not been carried out properly, especially among elementary school students. Therefore, this community service activity (PKM) aimed to increase children's awareness about the importance of proper hygiene practices and the importance of adequate nutritional intake. Besides paying attention to personal hygiene, children also need to be aware to environmental hygiene, for example by reducing plastic waste and utilizing organic waste for composting. To achieve this goal, this PKM was divided into two sessions, one session was about counseling on personal hygiene and health for elementary school students in grade 1, while another session was about composting training for elementary school students in grades 5-6. The results of the survey conducted before and after the activity showed that this counseling was successfully increase the awareness of students about the good practice of maintaining personal hygiene and health. In addition, composting training provided students with knowledge and understanding that composting does not require special skills; but requires considerable effort and time.

 

BAHASA INDONESIA ABSTRACT: Kesehatan sangat erat kaitannya dengan kebersihan dan konsumsi makanan bergizi. Namun, seringkali praktek menjaga kebersihan diri dan mengonsumsi makanan bergizi belum dilakukan secara baik dan benar, terutama di kalangan siswa sekolah dasar. Oleh karena itu, kegiatan pengabdian kepada masyarakat (PkM) ini bertujuan untuk meningkatkan kesadaran anak-anak mengenai pentingnya praktek kebersihan yang benar serta pentingnya asupan gizi yang cukup. Selain memperhatikan kebersihan diri, anak-anak juga perlu diajarkan untuk memperhatikan kebersihan lingkungan, misalnya dengan mengurangi sampah plastik dan memanfatkan sampah organik untuk pembuatan kompos. Untuk mencapai tujuan tersebut, PkM ini dibagi menjadi dua bagian, yaitu penyuluhan mengenai kebersihan diri dan kesehatan untuk siswa SD kelas 1 serta pelatihan pembuatan kompos untuk siswa SD kelas 5-6. Hasil survei yang dilakukan sebelum dan sesudah kegiatan menunjukkan bahwa kegiatan penyuluhan yang dilakukan berhasil meningkatkan kesadaran para siswa mengenai praktek pemeliharaaan kebersihan diri dan kesehatan yang benar. Selain itu, pelatihan membuatan kompos berhasil memberikan pengetahuan dan pemahaman pada para siswa bahwa pembuatan kompos tidak memerlukan keahlian khusus, namun memerlukan tenaga dan waktu yang cukup banyak.

 
Carta ao Editor em Relação à Diretriz “Protocolo Intra-Hospitalar para Abordagem da Doença COVID-19 no Adulto”
Authors: Silva Carlos Francisco , Mimoso Ferreira Ricardo
Published: September 2022

N/a.
Sobre a filosofia do esporte
Authors: Campos Marcus , Zimmermann Ana Cristina , Roble Odilon José
Published: September 2022

A filosofia do esporte se caracteriza como um campo de reflexão relativamente novo, sob essa nomenclatura e escopo, no qual criaram-se associações, jornais especializados e eventos internacionais, nos últimos anos. No intuito de melhor compreender suas características, entrevistamos o Prof. Dr. Cesar R. Torres, do The College at Brockport, State University of New York, ex-presidente da The International Association for the Philosophy of Sport (IAPS) e primeiro presidente da Asociación Latina de Filosofía del Deporte (ALFiD).  Espera-se com essa entrevista, um estímulo à compreensão da filosofia do esporte entre nós.
Uma análise de teses e dissertações sobre o programa especial de formação docente
Authors: Fortunato Ivan , Araújo Osmar Hélio Alves , Ferreira Liliana Soares
Published: September 2022

Este artigo apresenta um estado do conhecimento das teses e dissertações defendidas a respeito do Programa Especial de Formação Pedagógica. Apresenta-se um inventário como resultado de um mapeamento realizado no Catálogo de Teses e Dissertações da CAPES, no qual foram localizadas oito dissertações a respeito do curso entre 2013 e 2018. De modo geral, as dissertações apresentando os pontos de vistas de estudantes de cursos de Formação Pedagógica, além de docentes e coordenadores de cursos e até mesmo diretores e supervisores escolares. Como resultado, vimos que a percepção das pessoas envolvidas contrariam as críticas produzidas pela academia de que este tipo de formação docente é aligeirada, portanto sem qualidade. Ao final, espera-se que os aspectos positivos ressaltados pelo inventário ajudem o fortalecimento dos Programas Especiais de Formação Pedagógica a se consolidarem como um meio efetivo de formação docente, inicial e/ou continuada.
Práticas de organização científica na Escola Superior de Agricultura de Lavras, Minas Gerais (1969-1975)
Authors: Carneiro Kleber Tüxen , Silva Bruno Adriano Rodrigues da
Published: September 2022

Trata-se de um artigo cujo teor descreve analiticamente as práticas de organização científicas da Escola Superior de Agricultura de Lavras (ESAL) entre os anos de 1969 e 1975, observando as implicações do contexto de implantação da Lei 5.540/1968, a qual fomenta a reforma do ensino superior brasileiro. Metodologicamente a pesquisa de natureza historiográfica emprega: i) entrevistas (com base em questionários semiestruturado) com dois professores da ESAL partícipes da organização à época; ii) coteja livros de atas relativos ao período histórico do Conselho Departamental e do Conselho Editorial, órgãos de administração educacional da instituição examinada; iii) imagens (fotografias) que traduzam e retratem a Instituição e o seu modus operandi. Em linhas gerais, concluí-se que a ESAL alinhou suas práticas de organização aos ditames da política educacional em curso, ao passo de empreender e difundir uma revista científica e atender um modelo de pós-graduação sob o escopo da formação docente e das demandas relativas à produção científica, sendo esta, portanto, uma narrativa possível para compreender a história da Instituição e da circularidade científica.