bluuebunny/crossref_metadata_2025 huggingface dataset:
Manufacturing of Large-Diameter Rolling Element Bearings by Steel-Steel Multimaterial Systems
Authors: Coors Timm , Mildebrath Maximilian , Pape Florian , Hassel Thomas , Maier Hans Jürgen , Poll Gerhard
Published: September 2020

Ensuring the reliability of wind turbine (WT) generators and reducing maintenance intervals are major levers for reducing the levelized cost of energy and thus increasing competitiveness of WTs. With increasing development in the energy sector, the dimensions and load of individual components such as slewing bearings also rise nonlinearly. To manufacture such bearings with a diameter of a few meters, low-alloy heat-treatable steels are commonly used. In order to optimize large-diameter rolling element bearings, a novel process chain for the resource-efficient production of these machine elements using steel-steel multimaterial systems has been developed. A high-quality bearing steel with a high resistance to wear and fatigue, such as AISI 52100 or better, is applied by plasma powder deposition welding on low-cost steel blanks. The base material fulfils basic requirements regarding structural load-bearing capacity, thus serving as a support structure. High-strength steel serves as a raceway for a rolling element bearing and extends over the fatigue life-determining material volume under cyclic rolling contact fatigue. This hybrid workpiece is then formed by ring rolling, which guarantees material- and process-related advantages. For bearing dimensions of several meters in diameter, this approach can be more economical and can result in better material properties than producing a bearing consistently from high-quality and high-purity bearing steel. First results of this approach are presented, in which the process described here was performed on cylindrical roller thrust bearings and a cylindrical roller bearing inner ring as analogy models on a laboratory scale. Here, an AISI 52100 cladding was welded onto a lower-strength base material (AISI 1022M). Microsections after welding, forming, and heat treatment are presented, showing a recrystallization and microstructure transformation. Bearing fatigue tests were carried out, which showed good agreement to classical rolling contact fatigue theory. These findings will later be scaled to larger geometric dimensions.
Advances in Billet Cast Carbon Steel Quality for High-Performance Rolling Bearings
Authors: Scheid Eduardo , de Oliveira Denise Correa
Published: September 2020

In today's steelmaking business, the importance of clean steels has grown significantly due to increasing market demands. The need for lightweight design and parts with increased performance is more important than ever. Bearing steels are a clear example of this and the same has extended to other applications such as gears, pinions, and shafts. Each one may have its own unique production process and product testing requirements. However, a significant contribution to the improved performance relies on the quality of the steel used. Compared to just 20 years ago, improvements in steel manufacturing processes and advancements in the science of microstructural analysis have substantially improved steel quality. These advancements have resulted in critical chemistry control, as well as enhanced refining techniques to raise the purity of steel. As a result, clean steels are capable of outperforming other materials and excel in high applied stress conditions. Reducing the frequency of larger inclusions has a direct impact on the potential failure of a part, but also the frequency of smaller inclusions can have an impact on premature failure, fatigue life, and mechanical properties overall. Gerdau Special Steel has tailored its Monroe plant process to produce high-quality clean steels in a billet continuous casting process, enabling the use of a single conversion step to final rolled products. New production practices have been developed to reduce the size and frequency of nonmetallic inclusions. Improvements have been validated using several cleanliness assessment techniques, including scanning electron microscopy automated analysis and immersion ultrasonic testing at low and high frequencies.
Surface Damage in Rolling Bearings and the Impact on Rolling Contact Fatigue
Authors: Dinkel Markus , Zheng Xiaohui , Warmuth Michael , Correns Martin
Published: September 2020

Ideally, rolling bearings would always be operated in controlled clean environments and with perfect mounting conditions. However, in many cases, contamination as well as impact damage during mounting occurs. This can result in damage to the bearing raceways due to overrolling of particulate matter or uncontrolled contact of mating surfaces. The influence of such surface deformations on the bearing fatigue life has long been and still is a topic of research for bearing suppliers as well as for customers. In this work, the effect has been studied by a stringent simulation approach starting from the initial material deformation mechanisms to fatigue simulation and subsequent rating life analysis. Two-dimensional as well as three-dimensional deformation simulations were applied to identify the stress and strain formation during initial indentation and subsequent overrolling of damage features in the raceway of bearing rings. The evolution of stress and strain states were simulated for multiple overrolling events until saturation occurred. Subsequently, the resulting stress fields were analyzed in a local-stress-based rating life model. Several shapes and sizes of predamage were modeled, and the effect on the calculated lifetime was compared. This simulative approach was accompanied by experimental validation on artificially predamaged bearing raceways to compare calculated rating life with experimental test life data. It can be shown that the size, shape, and curvature of the damages are not necessarily dominant factors for the effect of indentations on bearing life. The most dominant factor proves to be the size of the material ridge formed due to the material flow at the indent. For the testing conditions and size of the tested bearings, a threshold for the life-limiting ridge heights could be derived from simulations, which was found to be in good agreement with results from the life tests.
Performance and Reliability of Powder Metallurgy Steels for Aerospace Bearings
Authors: Bellus Jacques , Sidoroff-Coicaud Christine , Sehlstedt Viktor , Benbahmed Atman , André Johanna , Blanchin Olivier
Published: September 2020

The evolution of aerospace engines has led to a significant reduction in polluting emissions and fuel consumption, while increasing the demands placed on bearings. Hence, meeting these increasing demands for tomorrow's bearings raises the issue of producing a new material that will ensure the fatigue life and reliability. The research on high-performance material is a good opportunity to promote the introduction of powder metallurgy steel. Powder metallurgy for bearing steel manufacturing was introduced several decades ago, but the effective use in aerospace engines is still very limited. This is probably the consequence of a lack of understanding of how modern powder metallurgy steels could be used to manufacture bearings. The main interest in powder metallurgy is that it is very well adapted to increase hardness after heat treatment as a consequence of the high addition of alloying elements. Due to the fast solidification conditions, there is no specific problem concerning segregation and carbide size. In a previous symposium, we presented some data concerning ASP 2055 and the interesting metallurgy associated with this material. This article will focus on additional results concerning the mechanical and rolling contact fatigue behavior, with emphasis on toughness and microcleanliness. Thermomechanical treatment and the metallurgical evolution after each manufacturing step will be described. The main parameters concerning the formability of ASP 2055 will also be detailed. In this article, the methodology used for the metallurgical characterization will be described in detail. The mechanical results and rolling contact fatigue test results will be discussed in comparison with the well-known reference M50 vacuum induction melting/vacuum arc refining (VIM/VAR). Emphasis will be put mainly on the toughness and cleanliness assessment results. The interest in using new techniques such as microwave microscopy to reveal subsurface defects is highlighted, underlining how promising these techniques are.
Spall Propagation Characteristics of Life-Tested VIM-VAR M50 and Pyrowear 675 Bearing Steels
Authors: Trivedi Hitesh K. , Haywood DaMari A. , Rosado Lewis , Kirsch Mathew S.
Published: September 2020

Spall propagation experiments were conducted on fatigue life-tested 208-size angular contact bearings made of vacuum induction melted, vacuum arc remelted (VIM-VAR) M50 (with both M50 and Si3N4 rolling elements) and two heat treatment variations of VIM-VAR Pyrowear 675 (P675) (with Si3N4 rolling elements). The primary focus was to study the effect of accumulated stress cycles and spall initiation method on spall propagation rate. Bearings were initially tested for rolling contact fatigue (RCF) life at maximum Hertzian contact stress values of 3.10 GPa (all-metal) and 3.56 GPa (hybrid) and at a temperature of 128°C using high thermal stability (HTS) oil conforming to MIL-PRF-23699G. Spall propagation tests were then subsequently conducted on fatigue life-tested bearings at 2.41 GPa (350 ksi) maximum Hertzian contact stress until a predetermined amount of material removal was detected. Propagation experiments were performed on both naturally occurring fatigue spalls from life testing and spalls initiated from Rockwell hardness indentations on suspended life-tested bearings. Selected life-tested bearings were investigated for alteration in microstructure and residual stress prior to spall propagation experiments. The effect of alloy, heat treatment, and stress cycling on spall propagation rate was examined. The material microstructural decay from accumulated stress cycles had a significant effect on the spall propagation time of hybrid bearings.
Effect of Carbide Segregation on Mode I Fatigue Resistance Properties of the Bearing Tool Steel Roll Blade Die
Authors: Molokanov Aleksej , Rawson Martin , Moreton Tim , West Geoff
Published: September 2020

Roll blade die (RBD) is a carburized tool steel containing 10 weight percent (wt%) tungsten that was initially designed for forging gas turbine engine blades. It therefore has very high hardness at room and elevated temperatures, resistance to wear, and low distortion. Due to high tungsten content, RBD can exhibit segregation of tungsten carbide in the form of randomly distributed coarse carbide stringers (greater than 600 µm in length) instead of the usual more uniform distribution of finer (less than or equal to 4.3 µm in equivalent circle diameter) carbides within the martensitic structure. Individual tungsten carbides within these coarse stringers can have sizes up to 14.7 µm in equivalent circle diameter (ECD). As a result of such segregation, these carbide stringers have been shown to be visible as an indication on the working surface of a bearing track when subjected to magnetic particle inspection (MPI) at high current flow. This paper presents the use of Mode I fatigue testing to test such indications and compare the results with identical indication free samples. Mode I was chosen as it had the advantage of maintaining the MPI indications in their original condition and it was also considered pessimistic with regard to any potential fatigue deficit observed compared to the rolling contact fatigue. The Mode I fatigue test results demonstrated no reduction in fatigue resistance in the samples with MPI indications compared to the identical indication free samples. Fractography revealed that non-metallic inclusions were located at the fatigue crack initiation sites. These findings suggest that the presence of MPI indications, which are associated with the coarse tungsten carbide stringers, had minimal effect on the fatigue resistance properties of the RBD tool steel under Mode I conditions.
Testing to Reveal Tribology Mechanisms for Advancing Bearing Steels
Authors: Wedeven Lavern D. , Black William F. , Wedeven Graham G. , Homan Robert J. , Forster Nelson H. , Chin Herbert A. , Fluch Rainer
Published: September 2020

The risk of introducing advanced bearing steels can be reduced by Technology Readiness Level (TRL) testing methods that reveal surface and subsurface tribology mechanisms. Abrasive wear screening tests (TRL 3) show a correlation with hardness for AMS 6491 (M50), AMS 6278 (M50 NiL), and three versions of a high-nitrogen stainless steel AMS 6898 (N360). A TRL 3 load capacity test method for oil qualification reveals lubrication and failure mechanisms for both oil formulations and bearing steels. Load capacity tests with legacy bearing steels AMS 6491 (M50) and AMS 6278 (M50 NiL) show superior performance over newer bearing and gear steels AMS 6509 (Ferrium C64), AMS 5930 (Pyrowear 675), and AMS 5898 (N360). Surface analysis and traction behavior are used to reveal the accommodation of shear phenomenon on an asperity scale. M50 NiL shows high traction and good antiwear (AW) behavior where shear is accommodated at the surface film, without much asperity shear or wear. The high-nitrogen stainless steels, or any material with a stainless oxide layer or a soft phase with limited shear resistance, tend to have low traction and poor AW attributes. AW and extreme pressure (EP) attributes are clearly revealed from tests with various bearing steels, as well as oil formulations. A third attribute, run-in polishing (RIP), is introduced to characterize interactions resulting in polishing of roughness features. Asperity polishing extends micro-elastohydrodynamic mechanisms and lowers the traction coefficient. Bearing steel and oil formulation attributes for AW, EP, and RIP can easily be at odds with surface and subsurface initiated fatigue, particularly for long-term operation. This requires extended TRL 3 testing for these attributes, along with TRL 4 simulation testing for component tribology design for service. TRL testing and analysis provide the methodology to design and apply component contact interfaces with greatly enhanced innovation and reduced risk.
Effect of Attachment Style on Selective Attention in Panic Disorder
Authors: Klipsch Ottilia , Schauenburg Henning , Nikendei Christoph , Benecke Cord , Dinger Ulrike
Published: September 2020

Introduction: Given the heterogeneity of results in the attentional bias to threatening information in patients with panic disorder, we investigated the attentional bias toward threat and the moderating effect of attachment styles in a female-only sample of panic patients and a nonclinical control group.

Methods: Female panic patients (n = 47) were compared to a female control group (n = 47) using a modified Dot Probe Task with body-related and interpersonal threat as well as attachment positive words.

Results: An attentional bias toward threat words was not replicated. Furthermore, there was no moderation effect on attentional bias by attachment styles. However, high attachment avoidance was associated with faster reaction times (RT) in attachment positive compared to attachment threat trials in both groups. In the patient group, attachment anxiety was associated with faster RT in panic threat trials compared to attachment positive trials. Anxiously attached controls reacted faster to attachment positive vs. attachment threat trials.

Discussion: No attentional bias was found in the present study. However, the findings suggest that attachment avoidance and attachment anxiety differently influence attention responses to trials that include different emotional stimuli in clinical and nonclinical, female participants. Attachment insecurity may modify attention when processing trials including both, threat and positive stimuli.
The Spectral Behavior of Ground Coseismic Motion in the Baikal Region: Effect of Seasonal Thawing–Freezing Cycles
Authors: Dzhurik V.I. , Bryzhak E.V. , Serebrennikov S.P. , Eskin A.Yu.
Published: September 2020

—Reliable solution of theoretical and applied seismological problems requires the knowledge of natural factors that influence ground motion induced by earthquakes. The effect of seasonal freezing and thawing on the behavior of coseismic ground motion in the Baikal region has been studied using data on local geology, earthquake source parameters, seismogeology, and seismic risk zoning for East Siberia. East Siberia, including the highly seismic Baikal region, is located in a temperate and cold, sharply continental climate, with the mean annual air temperature locally falling below –10 ºC. In this respect, the knowledge of seasonal variations in the ground motion spectra in different seismic-climatic zones of the region is of special importance. We study the dynamic parameters of seismic signals and their variations caused by seasonal thawing and freezing of the ground, using calculated spectra of selected earthquakes that were recorded by 0.5–20 Hz digital seismic stations at a sampling interval (Δ) of 0.01 s. Spectral analysis was applied to three-component records of more than two hundred M = 2.8 (K = 9–14) earthquakes that occurred in the region for the past twenty years at distances from 32 to 280 km from the stations. The influence of seasonal temperature variations on the frequency responses of coseismic ground motion is discussed for the case of two seismic stations in zones of continuous and sporadic permafrost. The results are complemented by generalized data from other seismic stations located in different permafrost conditions within the Baikal region. The effect of seasonal freezing and thawing turns out to be the most prominent at frequencies above 5–6 Hz and depend on the properties and thermal state of soils beneath the stations. At the same time, they are more prominent in thawing than in freezing curves for any soil, including relatively solid bedrock. The spectral behavior of earthquake-induced ground motion is associated with variations in wave amplitudes, which correlate with seasonal temperature variations. The reported results have implications for geophysical prospecting, seismic-risk zoning, and prediction of shaking intensity of large earthquakes, which require due regard for local permafrost conditions.
Geologic Structure and Hydrocarbon Generation Potential of Devonian Terrigenous Strata in the Perm’ Territory
Authors: Kozhevnikova E.E.
Published: September 2020

—The work is a study of the geologic structure and hydrocarbon generation potential of Devonian terrigenous strata in the Perm Territory. Prediction for new oil fields is made using quantitative criteria for determining the scale of oil generation by the petroleum source rocks of this petroleum system and the scale of the oil migration. An integrated approach is used, which makes it possible to follow all stages of petroleum generation in the Devonian terrigenous strata. The above petroleum system is the most buried of all commercial ones in the region; it has an intricate geologic structure and is less drilled than others but is considered to be promising for oil resource enhancement. Therefore, a comprehensive assessment with regard to both quantitative criteria and genetic parameters is a necessary step in the future planning of geological surveys. The results obtained during this work point to a low hydrocarbon generation potential of the Devonian terrigenous strata within the study area. This research has first established no genetic relationship between the oils and the organic matter of the Devonian terrigenous strata but has revealed a genetic relationship between these oils and the oils and organic matter of the Upper Devonian–Tournaisian petroleum system. It is shown that oil fields where oil deposits are present in Devonian terrigenous strata usually have reservoirs in the overlying Upper Devonian–Tournaisian petroleum system as well. This phenomenon is most often observed on the flanks of the Kama–Kinel’ depression system. The development of oil fields there gives a high chance of discovering new oil deposits. Taking into account the new data, it is necessary to revise the search criteria and perform geological surveys in the Devonian terrigenous strata, primarily in the areas of explored oil fields where oil is localized in the Upper Devonian–Tournaisian petroleum system.
Extension of the Dynamic Range of Laterolog Tools by Digital Signal Processing
Authors: Klimenko V.A. , Salakhov T.R. , Korovin V.M.
Published: September 2020

—We consider the ranges of current and voltage values for laterolog tools. It is shown that expansion of the dynamic range of these parameters is possible by mathematical focusing and digital filtering and by fulfillment of the conditions for the effective number of bits and by compliance with the tool requirements. The principles of mathematical focusing are considered by the example of the 5BK tool designed by AO NPF Geofizika (Joint-Stock Company) in Ufa. The digital-filtering calculation and application technique is described. The results of well tests are presented.
Epidemiology, Spectrum, and Impact of COVID-19 on Children, Adolescents, and Pregnant Women
Authors: Irfan Omar , Tang Kun , Arii Maya , Bhutta Zulfiqar A.
Published: September 2020

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The Role and Place of Partially Hydrolysed Protein Infant Formulas in the Nutrition of Full-term Children: Digestive Comfort and Allergy Prevention
Authors: Migacheva Nataliia B. , Mukhametova Evgeniia M. , Makarova Evgeniia G. , Ukraintsev Sergey E.
Published: September 2020

The continued increase in the number of allergic diseases and the high prevalence of digestive disturbances in infants explain the interest of pediatricians, allergists and gastroenterologists in the development and improvement of nutritional methods for the prevention and correction of these pathologies. This article discusses current ideas on the role of partially hydrolysed protein formulas in infants’ nutrition for recovery of most common functional gastrointestinal disorders, allergy primary prevention. Also, the article discusses formulas place in sequential nutrition therapy of food allergy. Descriptions of cow milk proteins molecular characteristics and its allergens properties are presented. Features of creation and production of partially hydrolysed protein formulas are described as well.
Effects of synthesis conditions on structure and magnetic properties of MnFe2O4particles
Authors: Quang Nguyen Van , Huong Pham Thi Lan , Tu Nguyen , Huyen Nguyen Thi , Tuan Nguyen Tri , Tran Manh Trung , Le Anh-Tuan
Published: September 2020

Manganese ferrite (MnFe2O4) nanoparticles were synthesized through a coprecipitation method using manganese (II) chloride tetrahydrate (MnCl2·4H2O) and ferric chloride hexahydrate (FeCl3·6H2O) as precursors. The scanning electron microscopy images showed that the as-synthesized particles were granular and about 20 nm. The X-ray diffraction patterns revealed that the manganese ferrite phase was completely decomposed into ferric oxide (Fe2O3) and manganese (III) oxide (Mn2O3) after annealing above 800°C in air. In contrast, its crystalline quality significantly improved when it was annealed in argon. By using the vibrating-sample magnetometry technique, it was demonstrated that the saturation magnetization (Ms) of the as-prepared sample (~36.6 emu/g) decreased sharply up to ~5 emu/g after annealing at 1000°C in air and significantly increased to ~77.6 emu/g when it was annealed at 1000°C in argon. Under sunlight radiation, a higher efficiency was observed for manganese ferrite particles annealed in argon in the presence of hydrogen peroxide (H2O2), mainly due to the Fenton reaction between manganese ferrite and hydrogen peroxide. The authors suggest that the presence of hydrogen peroxide and the enhancement of the crystalline quality of the manganese ferrite phase are the two leading factors in improving methylene blue degradation efficiency.
Project Based Learning: An Innovative Approach for Integrating 21st Century Skills
Authors: Pawar Rajendra , Kulkarni Sushma , Patil Sachin
Published: September 2020

Project Based Learning (PBL) is an instructional technique constructed upon learning activities and real problems that have brought challenges for students to solve. The PBL is an innovative approach learning that teaches students not just content, but also important skills for success in the 21st century. The attempt has been made to integrate the skills through to teaching and 21st-century PBL implemented to the course Kinematics of Machines. The PBL allows students to work on their own ideas/concepts and make decisions that affect project outcomes and the learning process. The main objective of PBL is to develop high quality and the authentic mechanism that fulfills the desired need. The research focused on developing 21st-century skills of Mechanical Engineering students in the second year of Engineering through PBL activity. The data was collected through observations, evolution rubrics, and student feedback. The results showed that students developed their creativity, communication and presentation, time management, self-assessment, group participation, leadership, critical thinking skills. PBL approach focuses on have and real-world problem-solving decision-making problems and challenges using, investigation and skills. The intention of this study is to investigate the effect of PBL on student's skills and learning outcomes.
Halk Sağlığı Uygulamalarının Enterobius Vermicularis’in Korunma ve Kontrolündeki Önemi
Authors: ÖZDİL Kamuran , KARATAŞ Nimet , ZİNCİR Handan
Published: September 2020

Enterobius vermicularis; dünyada ve ülkemizde ilkokul çağı çocuklarda ilk sıralarda görülen parazitler arasındadır. Bu parazit; yayılmasında sosyoekonomik durum, kişisel hijyen alışkanlıkları, çevre ve alt yapının iyileştirilmesi gibi etkenlerin önemli olması ve önlenebilir olması nedeniyle önemli bir halk sağlığı sorunudur. Ayrıca bu parazitin çocuklar üzerinde; ülser, egzama, karın ağrısı, anemi, uyku sorunları gibi sağlık sorunları ile doğrudan ve akademik başarısızlık, okul devamsızlığı gibi sorunlarla dolaylı etkileri vardır. Bu nedenle birinci basamak sağlık çalışanlarının E.vermicularis kontrolünde toplumun bilinçlendirilmesi ve sağlık eğitimi hizmetlerinin sunulmasına önem vermesi gerekmektedir. Bu derlemede, enterobius vermicuarisin çocuk sağlığı üzerindeki etlileri ve korunma ve tedavisinde de halk sağlığı uygulamalarının sunulması amaçlanmıştır.
Addressing negative psychosocial factors linked to severe injury in professional rugby players: An introduction to a group psychotherapy approach
Authors: Hall Trevor , Botha Jannie , Patricios Jon
Published: September 2020

Background: Negative psychosocial sequelae of severe rugby injury (SRI) in professional rugby players are well documented. Unaddressed, these issues can leave players vulnerable to persistent common mental disorders (CMD) and negatively affect injury recovery processes.

Objective: To introduce a psychotherapeutic group intervention aimed at addressing negative psychosocial sequelae linked to SRI in professional rugby player cohorts. Methods: Literature aimed at clarifying the potential efficacy of an integrative group therapy model, the Recovery Mastery Group (RMG), is discussed after which component parts of the intervention are presented.

Case illustration: A case illustration is presented comprising examples of how the RMG framework addressed psychosocial recovery issues in a professional South African rugby team during 2019.

Conclusion: The proposed Recovery Mastery Group (RMG) is presented as a cost- and time- effective psychotherapeutic intervention that integrates well-researched psychotherapeutic techniques. The RMG appears able to address multiple facets of psychosocial injury recovery, while possibly offering protection from the onset of CMD. This introduction to the RMG can be a forerunner of similar research across larger cohorts, in different team sports, to determine wider therapeutic intervention efficacy.
Generic Protocol for Environmental Health Systematic Reviews Based on COSTER Recommendations v1
Authors: Whaley Paul
Published: September 2020

A protocol template to help researchers follow the COSTER recommendations for conduct of systematic reviews. This instance covers the planning steps of a systematic review and will help with writing up the systematic review protocol. The intent is to convert COSTER from a checklist of things which need to be done into a sequence of actions which can be followed by a research team. When completing the protocol and either registering it or submitting it to a journal, please cite this instance of the protocol template and the parent manuscript, DOI 10.1016/j.envint.2020.105926.
Reproducibility for Thistlethwaite et al. 2020 v3
Authors: R Thistlethwaite Lillian , not provided Varduhipetrosyan
Published: September 2020

We consider the following algorithmic problem that arises in transcriptomics, metabolomics and other fields: given a weighted graph and a subset of its nodes, find subsets of perturbed variables that show significant connectedness within the graph. While solutions to this problem may be discovered by devising a variety of scoring functions, statistically rigorous discovery is obstructed by the high computational cost of permutation testing, required to establish p-values. In this work, we develop CTD, a novel information-theoretic method that evaluates the connectedness of perturbation signatures in a network context and assigns an upper bounds on their p-values without use of permutation testing. We apply CTD to interpret multi-metabolite perturbations due to inborn errors of metabolism and multi-gene perturbations associated with breast cancer in the context of disease-specific Gaussian Markov Random Field networks learned directly from respective molecular profiling data.
BEYOND TRADITIONAL LITERACIES: A MULTIMODAL-BASED INSTRUCTION TO FOSTERING STUDENT DIGITAL LITERACY LEARNING
Authors: Kustini Siti , Suherdi Didi , Musthafa Bachrudin
Published: September 2020

The fourth Industrial Revolution (IR 4.0) marked by artificial intelligence and cyber-physical systems has transformed the landscape of education including English literacy instruction. Some literacy educators claim that the success of students’ today as millennial kids (Gen-Zs) and future employees has been linked to digital literacy. This term is defined as the skills associated with using digital technology to enable users to locate, organize, understand, evaluate and create information and using those skills to solve problems in technology-rich environments. This study attempts to investigate the extent to which multimodal pedagogy helps improve students’ digital literacy skills in an English for Specific Purposes (ESP) setting in a vocational higher education. A theoretical multimodal semiotic approach along with multiliteracies pedagogy is served as the overarching guideline in the overall instructional procedures grounded specifically from the principles of learner-centeredness, constructivist learning, and social interaction. A qualitative case study approach was adopted to provide an in-depth explication and analysis of students’ literacy development. Data collection included classroom observations and students’ digital artefacts. In the course of the study, the students were engaged in the creation of two digital projects of different genres: digital information report in the form of text-image creation and digital persuasive talk in the form digital video production. The key findings of this study suggest that multimodal pedagogy is an effective instructional method for digital literacy learning in that several aspects of digital literacy had proven to be significantly improved.
PENERAPAN MODEL PEMBELAJARAN PANEL DISCUSSION DALAM PEMBELAJARAN KAIWA
Authors: Firmansyah Dian Bayu , Rahmawati Riska Sri
Published: September 2020

This study aimed to enhance learners Japanese speaking skills and to developed a learning model that suitable for kaiwa course in a huge class (number of participants were more than 20 people). This research was conducted with descriptive research method to describe kaiwa class situation conducted with panel discussion model. Data collection conducted with survey questionnaire and some short interview. Research subjects was the final grade students of Prodi Sastra Jepang, Universitas Komputer Indonesia. The result of survey questionnaire showed that panel discussion model gives more opportunity to all kaiwa class participants to speak Japanese and express their own current research idea than the traditional way of kaiwa learning model. In addition, learners also showed a positive attitude after following the kaiwa class conducted with the panel discussion model, in term of the development of their own current research direction. Research subject stated that they gained a lot of valuable information about their current research from their classmates through question answer sessions. Panel discussion learning model also encourages learners to be more active in the classroom and focusing the class into a Students Centered Learning (SCL) situation.
FOLKLOR LISAN DENDANG PADA MALAM BIMBANG GEDANG TEPUK TARI ADAT PERKAWINAN KOTA BENGKULU
Authors: Diana Eli , Putra Dhanu Ario
Published: September 2020

Dendang is one of the oral folklores of Bengkulu city. This study aims to describe dendang Tepuk Tari in the marriage customs of Bengkulu city, the form, function, and values. The method used in this research is descriptive qualitative method using recording techniques, interviews, listening, and taking notes and the Snowball sampling technique. The main data in this study are the chanting poems taken from the video footage that was sung and equipped with the results of interviews with several informants. This traditional dance is filled with the performance of seven traditional dances accompanied by Bengkulu traditional music and rhymes. The rhyme used consists of: 1) regular rhyme, and 2) talibun. The functions of the dendang are as; 1) entertainment facilities, 2) community identity, 3) social criticism, and 4) educational facilities, and it contains the values of: 1) philosophical, 2) religion, and 3) sociological.
Ortaokul Öğrencilerinin STEM Eğitim Yaklaşımına Dayalı Olarak Hazırlanan Etkinlikler İle İlgili Görüşleri: Yeşil Mühendislik Etkinlikleri
Authors: PEKBAY Canay , SAKA Yavuz , KAPTAN Dr. Fitnat
Published: September 2020

Bu çalışmada ortaokul öğrencilerinin STEM eğitim yaklaşımına dayalı olarak hazırlanan etkinlikler ile ilgili görüşlerinin değerlendirilmesi amaçlanmıştır. Nitel araştırma yöntemleri kullanılarak gerçekleştirilen bu araştırmada durum çalışması deseni kullanılmıştır. Çalışmanın katılımcılarını, 2015-2016 eğitim öğretim yılında Batı Karadeniz’de bir devlet okulunun yedinci sınıfında öğrenim gören 35 ortaokul öğrencisi oluşturmaktadır. Çalışma Bilim Uygulamaları seçmeli dersinde yürütülmüştür. 5 hafta boyunca ısı yalıtımı temalı 5 farklı birbirini takip eden mühendislik tasarım sürecine göre hazırlanan STEM etkinlikleri (yeşil mühendislik etkinlikleri) ortaokul öğrencilerine uygulanmıştır. Öğrencilerin STEM etkinlikleri ile ilgili görüşlerinin belirlenmesi amacı ile çalışmada veri toplama aracı olarak açık uçlu etkinlik görüş formu kullanılmıştır. Çalışmada veriler, kuramsal çerçevede belirtilen STEM ile ilgili oluşturulmuş temalar yardımı ile betimsel analiz yöntemi kullanılarak analiz edilmiştir. Öğrenciler, etkinliklerin eğitici, eğlenceli olmasını, grup çalışması sağlamasını, mühendis gibi çalışma sağlamasını, özgüveni, yaratıcılık ve hayal gücünü geliştirmesini etkinliklerin avantajı olarak görürlerken, etkinlikler sırasında ortaya çıkan malzemeden, süreçten ve grup çalışmasından kaynaklı problemleri ise etkinliklerin dezavantajları olarak belirtmişlerdir. Araştırmanın bu alanda çalışan araştırmacılara ve fen bilgisi öğretmenlerine kuramsal ve uygulamaya dönük katkılar sağlayacağı düşünülmektedir.
Türkiye’de Yabancı Dil Eğitimi Alanında Kültürlerarasılığa Yönelik Gerçekleşmiş Lisansüstü Tezlerin Analizi
Authors: ASLIM YETİŞ Veda
Published: September 2020

Avrupa Konseyinin 2001’de yayınlanan Diller için Avrupa Ortak Başvuru Metniyle, yabancı dil eğitiminde kültürlerarasılık ve kültürlerarası yaklaşım önem kazanmış, kültürlerarası bilinç/farkındalık yabancı dil öğretim ve öğreniminin hedeflerinden biri olmuştur. Çalışma kapsamında, Türkiye’de yabancı dil eğitimi alanında 2001-2019 yılları arasında gerçekleştirilen ve kültürlerarasılığa odaklanan lisansüstü tezlerin farklı değişkenler (dil eğitim alanı, tez düzeyi yıl, araştırma modeli, veri toplama tekniği ve örneklem) açısından incelenmesi ve bu alandaki eğilimlerin ve eksikliklerin belirlenerek, ileride yapılacak çalışmalara ışık tutulması amaçlanmıştır. Bu amaç doğrultusunda Alman dili eğitimi, Fransız dili eğitimi, İngiliz dili eğitimi, Türkçe yabancı dil eğitimi ve Kore dili eğitimi alanlarında yapılmış toplam 80 tez doküman analiz tekniğiyle incelenmiştir. Araştırma bulgularından elde edilen sonuçlara göre en fazla çalışmanın İngiliz dili eğitim alanında yapıldığı ve en çok çalışılan konunun kültürlerarası (iletişim) becerisi olduğu görülmüştür. Ayrıca araştırmalarda en fazla kültürlerarası tutum, görüş ve algıların incelendiği, en çok başvurulan araştırma modelinin karma model, en çok kullanılan veri toplama tekniğinin ise anket olduğu tespit edilmiştir. Tezlerin hedef kitlesinin ise ağırlıklı olarak öğretim elemanları ile üniversite öğrencileri tarafından oluşturulduğu dikkati çekmiştir.
Faunistic Studies on the Genus Medon Stephens, 1833 (Coleoptera: Staphylinidae: Paederinae) in Turkey
Authors: ÖRGEL Semih , ÇİÇEK Kerim , ANLAŞ Sinan
Published: September 2020

In this study, 702 specimens belonging to the genus Medon Sephens were examined. The material was obtained from various field trips between 2010-2019 by using aspirator, sifter, pitfall trap, berlese funnel and MSS trap methods. As a result of the study, 15 of the 22 known species from Turkey were identified.Medon brunneus (Erichson, 1839), M. ferrugineus (Erichson, 1840), M. lanugo Assing, 2004 and M. subfusculus Fagel, 1969 from the Aegean Region, M. semiobscurus (Fauvel, 1875), M. abantensis Bordoni, 1980 and M. lamellatus Assing, 2004 from the Central Anatolian Region are reported for the first time. Besides, M. rufiventris (Nordmann, 1837) is recorded for the first time from both the Aegean and Central Anatolian Regions. In addition, many new locality records of the recorded species were presented. The distributions of all Medon species in Turkey were mapped.
A Mixed Methods Examination of MSW Student Satisfaction With Integrated Behavioral Health Field Placements
Authors: Clarkson-Hendrix Michael , Warner Lynn A.
Published: September 2020

Social workers must be prepared to work effectively within systems that attempt to maximize coordination where integrated behavioral health care is provided. Current students are the profession’s pipeline to the behavioral health workforce. If social work students are dissatisfied with the training they receive in integrated health care settings, they may be deterred from interprofessional collaborative practice. This study examined MSW students’ satisfaction with integrated behavioral health field placement experiences. Thirty-three students completed an online survey that asked about factors associated with field placement satisfaction, and nine of these students participated in two focus groups to explore other aspects of the field setting that influenced satisfaction. Survey results revealed that as role ambiguity increased, student satisfaction decreased. Focus group findings uncovered that the profession’s influence within the field setting and the presence of support by professionals from other disciplines promoted students’ satisfaction. These results suggest that educators should help students develop skills in tolerating role ambiguity and asking for role clarification as part of supervision when placements are in these settings. MSW faculty and field education directors may want to collaborate with integrated behavioral health providers to assess organizational climate and identify ways to foster inclusive interprofessional collaborative practices and a culture of cross-profession respect.
Integrating Social Work Into Interprofessional Education
Authors: Adamson Keith , Ashcroft Rachelle , Langlois Sylvia , Lising Dean
Published: September 2020

The University of Toronto Interprofessional Education Curriculum (IPE) is an exemplar of advancing interprofessional education with a focus on preparing students for practice in healthcare settings. Our paper begins with a detailed overview of the University of Toronto’s IPE program including the range of participating faculties, an overview of the curriculum including examples of learning activities, and the social work specific expectations that are embedded in the core and elective components. Following, is a discussion on mitigating the challenges and engaging opportunities associated with integrating social work in a healthcare-focused IPE program at a major Canadian University. Our exploration of mitigating challenges and engaging opportunities will span five key areas: a) Creating meaningful learning experiences for social work students; b) Implementing mandatory or elective IPE participation; c) Scheduling of IPE activities; d) The role of social work faculty in driving student involvement in IPE; and e) Strengthening social work professional leadership for IPE.
Social Work Students’ Attitudes and Skills Self-Efficacy Toward Collaborative Practice Improve After Interprofessional Opioid Use Disorder Case Discussion
Authors: Kim Isok , Elze Diane E. , Ohtake Patricia J.
Published: September 2020

Few studies have examined social work student outcomes after engagement in interprofessional (IP) learning experiences. We examined self-reported attitudes and skills self-efficacy among social work students before and after their engagement in IP Forums. The data comes from social work students who participated in 2016-2018 Fall IP Forums focusing on opioid use disorder. Using the Interprofessional Attitudes Scale (IPAS) and the Interprofessional Collaborative Competency Attainment Scale, revised (ICCAS), we assessed students’ self-reported attitudes (IPAS) and skills self-efficacy (ICCAS) before and after the Fall IP Forums. Paired t-tests identified significant changes in IPAS and ICCAS scores. Students reported increases in their IP attitudes and skills self-efficacy following participation in the IP Forum as measured by pre-IPAS score (n=236, M=4.56, SD=0.29) to post-IPAS score (M=4.68, SD=0.27; t(156)=-5.31, p<.001). Post-ICCAS score also increased (n=48, M=4.26, SD=0.69; t(33)= -5.75, p<.001) from the pre-ICCAS score (M=3.55, SD=0.92). The 2015 Council on Social Work Education Accreditation Standards require that social work students learn how to value and engage in interprofessional teams. Given the self-reported increases in IP attitudes and skills self-efficacy seen in this study, IP Forum participation will help foster greater engagement and contribution to overall IP experiences for social work students.
Helping Community Partners Build Capacity within Integrated Behavioral Health
Authors: Padykula Nora , Berrett-Abebe Julie , Haven Terri
Published: September 2020

Social workers are recent additions to integrated health care teams; therefore, there is emerging literature about the work experiences and training needs of social workers in integrated settings. After receiving a Health Resources Services Administration-Behavioral Health Workforce Education and Training (HRSA-BHWET) integrated behavioral health (IBH) grant, our social work program conducted a survey among our social work field education sites to determine training needs. Results of the needs assessment revealed that a lack of clarity exists about what is meant by integrated behavioral health as well as ways to measure and interpret levels of integration within social work field education sites. Barriers to collaboration and areas of needed training revealed gaps in knowledge and workforce readiness for providing integrated care. Recommendations include using a bidirectional level of integration conceptual framework to support greater participation of social workers and social service agencies in integrated care, in addition to specific curricular and continuing education training opportunities. Social work educators are afforded a unique opportunity to support our field education partners in reviewing and enhancing their systems of care as they continue to train future social workers.
Transformative Teams in Health Care
Authors: Jones Barbara , Currin-McCulloch Jen , Petruzzi Liana , Phillips Farya , Kaushik Shivani , Smith Blake
Published: September 2020

This paper describes social work pedagogy and outcomes in a multi-year longitudinal interprofessional education (IPE) course incorporating B.S.W, and M.S.S.W. students. Social work students participated in an IRB-approved mixed-method study designed to evaluate individual growth and identity transformation throughout the two-semester course. Students’ semi-structured reflection papers (n=113) were analyzed qualitatively to identify core themes. Students voluntarily completed Interprofessional Assessment Scale (IPAS) surveys, a measure of core competencies in interprofessional care, before and after the class (n=48). Social work students reported that they developed increased personal and interprofessional confidence, awareness of social work role in health care, increased social work skills and leadership to use their voice in interprofessional health care teams. All levels of social work students can and should be incorporated into IPE education. Social work educators and practitioners should continue to take leadership in IPE education at all levels of curriculum design and implementation.
Utilizing Change Leadership Within Social Work Education to Prioritize and Expand Interprofessional Education in a University Setting
Authors: McCave Emily L. , Mutrie Laura , Doyle Maya H. , Jacobson Stephanie , Kelly Amber
Published: September 2020

Interprofessional education (IPE) is a critical educational component for promoting the quadruple aim of health care. Additionally, interprofessional practice (IP) is included in the Council on Social Work Education’s (CSWE) educational standards. Yet, the organizational change required to integrate a social work program within established interprofessional education (IPE) curriculum is challenging given the resources required, such as personnel, time, and ongoing commitment among stakeholders. We present a case study of one MSW program’s process for integrating social work within an existing IPE curriculum and formalizing IPE as a focus point programmatically. The Bacharach Approach, a change leadership model, is used to analyze the MSW program’s approach to initiating and sustaining this change initiative. Through strategic decision-making and capitalizing on momentum, the MSW program has become a valued partner and leader of IPE endeavors and the MSW program’s focus on IPE programmatically has been solidified. Creativity, adaptability, advocacy, and relationship-building are key skill areas that social work educators can draw upon as they navigate organizational and programmatic changes focused on IPE.