bluuebunny/crossref_metadata_2025_split huggingface dataset:
English Speaking’s Barriers of Foreign Learners
Authors: Amiruddin Amiruddin 
Published: September 2022

The ability to speak English in the era of Fourth Industrial Revolution is necessary for learners. However Gaining the ability of speaking English is still challenging for a lot of learners who live in English as Foreign Language countries. Most of learners find it difficult to speak English due to some barriers. The objective of this study is to explore English speaking’s barriers which face by foreign learners. The method used in this study is literature research method. To collect the data the writer used some references from articles, book, e book, and all the data related to this study. Based on the result and discussion, the writer concluded that the way of students gaining their speaking skill through learning, the exposure to English, the differences in grammar and phonology, anxiety, and motivation are some of barriers that foreign learners face in speaking English.
Layanan advokasi dalam bimbingan dan konseling
Authors: Ifdil Ifdil , Fadli Rima Pratiwi , Zola Nilma , Putri Yola Eka , Amalianita Berru 
Published: September 2022

Bimbingan dan konseling dewasa ini memiliki kontribusi yang besar untuk tercapainya tugas-tugas perkembangan individu. Fenomena yang ditemukan dewasa ini khususnya peserta didik ditemukan fenomena tentang kekerasan seksual, bullying, bolos disekolah dan perilaku yang berpotensi untuk terciderai hak-hak klien. Layanan bimbingan dan konseling yang dapat melindungi dan mengembalikan hak klien yaitu layanan advokasi. Adanya layanan advokasi dalam bimbingan dan konseling dapat menunjukkan adanya keprofesionalan dari profesi untuk melindungi hak-hak klien. Adanya layanan advokasi dalam bimbingan dan konseling dapat menjadi jembatan bagi individu untuk mengembalikan hak-haknya yang terciderai. Melalui layanan advokasi, klien kembali berhasil menikmati haknya, yaitu klien memiliki hak mereka lagi dan begitu juga klien mereka kembali ke posisi pengembangan diri. Guru BK/konselor menjadi profesional yang memiliki tanggungjawab untuk membuat lingkungan yang kondusif. Adapun dalam layanan advokasi klien konselor atau guru BK menggarap materi untuk mengarahkannya terselesaikan maslah klien. Sehingga diperlukan sumber daya profesional yang memiliki peran advokasi yang etis dan efektif.
Manejo de la vía aérea en pacientes con inestabilidad cervical: un reto para el anestesiólogo.
Authors: Irene Alonso Ramos  , Susana Pretus Rubio  , Almudena Baños Maestro  , Marisa Mariscal Flores  
Published: September 2022

La lesión de la columna cervical ocurre en el 3-4% de los pacientes traumatizados, de los cuales el 25% tiene una lesión de la médula espinal cervical. El manejo de la vía aérea presenta riesgos inherentes en pacientes con lesión cervical, tanto si la inestabilidad se conoce previamente como si no, puesto que incluso las maniobras más simples pueden desplazar la columna cervical lesionada. Las guías de actuación recomiendan la realización de la estabilización manual en línea junto con la laringoscopia para minimizar el desplazamiento cervical así como el uso de dispositivos transglóticos para solventar el empeoramiento en el grado de Cormack-Lehane. Sin embargo, dada la limitada evidencia de la eficacia de la maniobra MILS en minimizar el movimiento espinal cervical y su asociación con efectos secundarios, junto con la alta prevalencia de pacientes con vía aérea difícil y el gran desarrollo tecnológico que se ha producido en los últimos años, ha conducido al planteamiento de nuevas alternativas para el manejo de la vía aérea en estas situaciones. Por ello, la inmovilización de la columna cervical mediante la estabilización manual en línea es cada vez más controvertida y los dispositivos ópticos son cada vez más utilizados.
The State, Farmers/Herders’ Clashes and Voter Mobilization in the 2019 General Elections in Nigeria: Interrogating Electioneering Campaign Rhetoric in Benue State
Authors: Ugbudu Martin Iorgbir , Buter Wandoo 
Published: September 2022

The internecine farmers/herders’ clashes that became pervasive in Nigeria in recent times took the centre stage in electioneering campaign in the 2019 general elections in the country. The opposition parties used the bloody clashes that aggravated inter-ethnic disharmony, undermined the country’s security and unleashed socio-economic losses as a main campaign issue. Hence, campaign slogans, jingles and songs that harped on the farmers/herders’ clashes were used during electioneering campaigns to mobilize votes. This study, therefore, examines the campaign slogans, songs and messages by the main opposition party, the Peoples’ Democratic Party (PDP) candidates and its supporters at political rallies in the 2019 elections in Benue State that dwell on the armed herdsmen attacks to dissuade voters from voting the ruling party, the All Progressive Congress (APC) headed by Muhammadu Buhari a Fulani. The study adopts Antonio Gramsci’s theory of hegemony as its theoretical frame of analysis. The study which made use of content analysis and is analytically revealed that political language has become an instrument of hegemonic control meant to divert peoples’ attention from socio-economic realities. In as much as party songs, slogans and jingles tend to convey symbolic aspects of genuine concern for the people’s plight, they fail to offer alternative solutions to prevailing socio-economic realities in Benue State. Amongst other recommendations, it suggests that political debates should be institutionalized in the country’s electoral process.
Tingkat Keberhasilan Komunikasi Interpersonal dalam Pembelajaran Daring
Authors: Darojjah Diya Illa , Purnamasari Iin , Wakhyudin Husni 
Published: September 2022

The background of this research is that during the COVID-19 pandemic, learning is carried out online which involves no direct meetings between teachers and students, or students toward other students which makes the communication needs is very prioritized in online learning to build successful online learning. The purpose of this study is to determine the success of the interpersonal communication done by teachers to students in online learning which can be seen from the results of the student scores. This type of this research uses descriptive qualitative research by collecting data on student questionnaires, student interviews, class teacher interviews, principal interviews, and documentation studies of student scores. The results of the analysis show interpersonal communication in online learning using WhatsApp communication media. Student responses to online learning goes well and the learning objectives are achieved with the results obtained by students in online learning. The results obtained in online learning on average are only 2-6 students who are declared failed passing the minimum completeness criteria of 18 grade 5 students. The results are good with the support of successful communication and good student responses to online learning. Support from schools and tutoring from parents at home.
Pengembangan Media Pembelajaran Daring “Si Pipa” Berbasis Aplikasi Android pada Pembelajaran Matematika Materi Pecahan Kelas IV SD
Authors: Anggraeni Aisyah Fatma , Subekti Ervina Eka , Reffiane Fine 
Published: September 2022

This study aims to determine whether the learning media "Si Pipa" is suitable for use as a medium for learning mathematics for grade IV elementary school fraction materials and to determine whether the development of media "Si Pipa" in learning mathematics for grade IV fractions meets the valid value. The type of research applied to this research is research and development (RnD). The samples taken were 20 fourth grade students of SD Negeri 2 Pengkol Jepara using probability sampling technique. The data in this study were obtained through interviews and questionnaires. The results of the assessment from media experts reached an average percentage of 93.23% with the criteria of "very good". The results of the assessment from material experts reached an average percentage of 91.35% with the criteria of "very good". The results of the media acceptance assessment by fourth grade teachers reached a percentage of 94.44% with the criteria of "very good", then the results of field trials from fourth grade students reached an average of 93.68% with the criteria of "very good".
Kemampuan Analisis Artikel Ilmiah Mahasiswa PGMI IAIN Sorong
Authors: Agnesa Oki Sandra , Anggrella Dita Purwinda 
Published: September 2022

The ability to analyze scientific articles is important for students to have to complete their studies. This study aimed to describe the ability to analyze scientific articles of fifth-semester students of PGMI IAIN Sorong, which was measured based on the ability to recognize the rhetorical move of articles. The research design was in the form of a survey with a sample of 28 students. The study results, which were analyzed using the percentage technique, showed that the analytical ability of the fifth-semester students of PGMI IAIN Sorong was still low in identifying the rhetorical movement of articles. The objective aspect (85.71% correct answer) and conclusion (75% correct answer) are the easiest aspects to identify, followed by the implication aspect (53.57% correct answer), while the motive, support, counterargument, and refutation aspects (0% correct answer) could not be identified.
A study of the relationship between aggression and psychological self-satisfaction in adult domestic and working women with reference to Bhagalpur district
Authors: Kumari Annapurna 
Published: September 2022

The present study was conducted in Bhagalpur city to explore the relationship between aggression and life-satisfaction in adult domestic and working women. For the study, out of 60 adult women in the age group of 35 to 65 years, 30 domestic and 30 working adult urban women were selected. Data Collection M.K. A standardized questionnaire called Aggression Inventory translated into Hindi by Sultania was used. There are 67 questions with 52 positive questions and 15 negative questions with sub-categories divided into 8 parts - assault, direct aggression, irritability, negativity, resentment, suspicion, verbal aggression and guilt. The scale administered by Dr. Sisodia and Chaudhary (2012) was used for psychological self-satisfaction. The data were analyzed using the t-ratio of the descriptive statistical method. It consists of 50 questions divided into 6 parts with sub-categories - satisfaction, competence, sociability, mental health and interpersonal behavior. All the questions in the scale are positive and there are no negative questions. The findings suggest that there is a significant positive correlation in aggression and life satisfaction among adult women, whereas there was a non-significant negative correlation in aggression and life satisfaction among late middle-aged women.
Abstract in Hindi Language:
प्रस्तुत अध्ययन वयस्क घरेलू और कामकाजी महिलाओं में आक्रामकता और जीवन-संतुष्टि के बीच संबंधों का पता लगाने के लिए भागलपुर शहर में किया गया है। अध्ययन के लिए 35 वर्ष से 65 वर्ष के आयु वर्ग के 60 वयस्क महिलाओं मे से 30 घरेलू और 30 कामकाजी वयस्क शहरी महिलाओं को चुना गया था। आंकड़ा संग्रह एम. के. सुल्तानिया द्वारा हिन्दी अनुवादित एग्रेसन इन्वेंटरी नामक मानकीकृत प्रश्नावली का उपयोग किया गया था। 8 भागों में विभाजित उप-श्रेणियों - हमला, प्रत्यक्ष आक्रामकता, चिड़चिड़ापन, नकारात्मकता, आक्रोश, संदेह, मौखिक आक्रामकता और अपराधबोध के साथ 67 प्रश्न हैं जिसमें 52 सकारात्मक प्रश्न तथा 15 नाकारात्मक प्रश्न हैं। मनोवैज्ञानिक आत्म संतुष्टि के लिए डॉ. सिसोदिया और चैधरी (2012) द्वारा प्रशासित मापनी का उपयोग किया गया था। आकड़ों का विश्लेषण वर्णनात्मक सांख्यिकीय पद्धति का टी-अनुपात उपयोग करके किया गया था। इसमें 6 भागों में विभाजित उप-श्रेणियों - संतुष्टि, योग्यता, सामाजिकता, मानसिक स्वास्थ्य और अन्तःव्यक्तित्व व्यवहार के साथ 50 प्रश्न हैं। पैमाने में सभी प्रश्न सकारात्मक हैं और कोई नकारात्मक प्रश्न नहीं है। निष्कर्षों से पता चलता है कि वयस्क महिलाओं में आक्रामकता और जीवन संतुष्टि में एक महत्वपूर्ण सकारात्मक सह-संबंध है, जबकि देर से मध्यम आयु वर्ग की महिलाओं के बीच आक्रामकता और जीवन संतुष्टि में गैर-महत्वपूर्ण नकारात्मक सहसंबंध था।
Keywords: वयस्क महिला, घरेलू महिला, कामकाजी महिला, आक्रामकता, मनोवैज्ञानिक आत्म संतुष्टि
Biocompatible Nanostructured High Velocity Oxy-Fuel (HVOF) Sprayed Titania Coating
Authors: Lima R.S. , Marple B.R. , Li H. , Khor K.A. 
Published: September 2022

Abstract
Nanostructured titania (TiO2) coatings were produced by high velocity oxy-fuel (HVOF) spraying. They were engineered as a possible candidate to replace hydroxyapatite (HA) coatings produced by air plasma spray (APS) on implants. They exhibited mechanical properties, such as hardness and bond strength, much superior to those of APS HA coatings. In addition to these characteristics, the surface of the nanostructured coatings exhibited regions with nanotextured features originating from the semi-molten nanostructured feedstock particles. This nanotexture is considered an asset, due to its better interaction with the adhesion proteins of the osteoblast cells, such as fibronectin, which exhibit dimensions in the order of nanometers. Osteoblast cell culture demonstrated that this type of coating supported osteoblast cell growth and did not negatively affect cell viability.
Development of Osteoblast Colonies on New Bioactive Coatings
Authors: Legoux J.-G. , Chellat F. , Lima R.S. , Marple B.R. , Bureau M.N. , Shen H. , Candeliere G.A. 
Published: September 2022

Abstract
The aging baby boomer population coupled with an increase in life expectancy is leading to a rising number of active elderly persons in occidental countries. As a result, the orthopedic implant industry is facing numerous challenges such as the need to extend implant life, reduce the incidence of revision surgery and improve implant performance. This paper reports results of an investigation on the bioperformance of newly developed coating-substrate systems. Hydroxyapatite (HA) and nano-titania (nano-TiO2) coatings were produced on Ti-6Al-4V and fiber reinforced polymer composite substrates. In vitro studies were conducted in order to determine the capacity of bioactive coatings developed to sustain osteoblast cells (fetal rat calvaria) adherence, growth and differentiation. As revealed by SEM observations and alkaline phosphatase activity (ALP), cell adhesion and proliferation demonstrated that HA coatings over a polymer composite are at least as good as HA coatings made over Ti-6Al-4V substrate in terms of osteoblast cell activity. Nano-TiO2 coatings produced by high-velocity oxy fuel (HVOF) spraying led to different results. For short term cell culture (4.5 and 24 hrs), the osteoblasts appeared more flattened when grown on nano-TiO2 than on HA. The surface cell coverage after 7 days of incubation was also more complete on nano-TiO2 than HA. Preliminary results indicate that osteoblast activity after 15 days of incubation on nano-TiO2 is equivalent to or greater than that observed on HA.
Investigation of the Interface Strength of Hydroxyapatite Coating by the LASAT (Laser Shock Adhesion Test) Method
Authors: Bansard S. , Khor K.A. , Borit F. , Guipont V. , Jeandin M. , Nivard M. , Berthe L. 
Published: September 2022

Abstract
A good adhesion of plasma sprayed hydroxyapatite (HA) coating on Ti-based alloy is crucial for ensuring highly-reliable non cemented implants in the biomedical industry. In the present work, the laser shock adhesion test, namely LASAT, has been applied to investigate the interface strength of plasma sprayed HA coatings. This contact less method allowed a rapid assessment of the HA coating adhesion on simple coated plates. Varying the laser energy to impact the substrate and to generate the interface decohesion, a LASAT adhesion threshold can be determined for the highest laser fluence (J/m²) for which no debonding of the coating occurred. This qualitative and discerning LASAT procedure has been carried out on HA coatings to investigate the role of various interfaces on the adhesive property of the HA/Ti bond. According to the LASAT analysis, a surface roughness prepared with medium or coarse grit-blasting did not influence drastically the adhesion threshold while smooth pre-oxidized specimens LASAT threshold were near to those obtained with a Ti bond-coat. These thresholds also corresponded with the highest adhesion measured in this study. In addition, pre-heating treatment of substrates just prior to spraying up to 270°C did not exhibit a significant difference with grit-blasted HA/Ti interface. Further investigations (SEM, XRD) was also achieved to investigate the interface characteristics before and after the laser treatment. Sample cross-sections of laser shocked specimens were examined in detail, right at the impact location and within the debonding area to assess the fracture feature. This complementary materials analysis permitted to establish the relevance of the LASAT test as a fast and easy-to-use method devoted to the design or the control of highly adhesive HA coatings. Preliminary experiments to apply the LASAT method in liquid environment is described. Further work is on progress to implement an in situ adhesion testing of HA coating in simulated body fluid.
Mechanical Properties and Corrosion Resistance of Cold Sprayed Coatings
Authors: Mäkinen H. , Lagerbom J. , Vuoristo P. 
Published: September 2022

Abstract
Cold spraying is quite a new process, which is an effective method to deposit dense and pure coatings. The aim of this study was to investigate microstructures and mechanical properties (hardness and adhesion) of the cold sprayed coatings. The coating materials were aluminium, copper, nickel and zinc. The substrate materials were carbon steel and copper. Influence of heat treatments on mechanical properties was studied, especially different heat treatment times and temperatures. The hardness of the cold sprayed coatings was higher than that thermally sprayed coatings and bulk materials. During heat treatment, the hardness of the cold sprayed coatings decreased and the ductility increased. Corrosion resistance of cold sprayed coatings was also studied. The corrosion resistance was tested with salt spray (fog) testing and open cell potential measurements. The corrosion tests showed some through-porosity but some parts of the cold sprayed coatings appeared to be fully dense, which showed their potential for corrosion protection.
Optimal Design of a Convergent-Barrel Cold Spray Nozzle by Numerical Method
Authors: Li W.-Y. , Liao H.L. , Zhang G. , Coddet C. , Wang H.-T. , Li C.-J. 
Published: September 2022

Abstract
A convergent-barrel (CB) cold spray nozzle was designed through numerical simulation. It was found that the main factors influencing significantly the particle velocity and temperature include the length and diameter of the barrel section, the nature of the accelerating gas and the operating gas pressure and temperature, and the particle size. Particles can achieve a relatively low velocity but a high temperature under the same gas pressure using a CB nozzle compared to a convergent-divergent (CD) nozzle. The experiment results with Cu powder using the designed CB nozzle confirmed that the deposition can be realized under a lower gas pressure with a CB nozzle.
Simulation of Particle-Shock Interaction in a HVOF Process
Authors: Srivatsan V.R. , Dolatabadi A. 
Published: September 2022

Abstract
High Velocity Oxygen Fuel Process (HVOF) involves supersonic two-phase flow of gas-solid particles. Two kinds of shocks are formed in a typical HVOF process. Adjustment of the over-expanded flow to the atmospheric pressure at the exit of the nozzle results in formation of shock diamonds while high speed flow impingement on a substrate creates bow shock. The latter is found to be responsible for deviation of the injected particles from their trajectories near the substrate which significantly reduces the chance of some particles landing on the substrate. An attempt is made to study the behavior of particle trajectory as it interacts with the bow shock formed near the substrate. The strength and location of bow shock was found to vary for different substrate geometries and stand-off distances. In this work, various particle sizes impinging on substrates with various configurations (flat, concave and convex) are simulated and the effect of shock diamonds and bow-shock, on particle trajectory is studied.
Modeling and Validation of Substrate Heat Transfer Coefficient Distribution in Vacuum Plasma Spraying
Authors: Davis E.S. , Duncan S.R. , Grant P.S. 
Published: September 2022

Abstract
As the initial step of a process control design for a substrate surface temperature control solution for Vacuum Plasma Spraying (VPS), the distribution of heat transfer coefficient h between impinging plasma gases and the substrate coating surface is required. An embedded calorimeter approach was used to measure the distribution of the convective heat transfer coefficient over the surface of a substrate and the resulting distributions have been compared with empirical correlations and CFD model predictions of the plasma jet/substrate interaction, as a function of VPS process parameters.
RF Plasma Deposition of Refractory Metals Case Study for Tungsten
Authors: Kovářík Ondřej , Xue Siwen , Fan Xiaobao , Boulos Maher 
Published: September 2022

Abstract
The paper presents an integrated study of the effects of RF plasma spray process parameters on the particle melting, particle spheroidisation and acceleration in the plasma, particle-substrate interactions and final deposit properties. Particle temperatures and velocities have been studied, by both experimental and numerical simulation methods, as functions of spray particle diameters. In-flight spheroidisation behavior was also observed by means of a particle capturing technique while splat formation was studied on polished stainless steel substrates. Optimized process parameters were then estimated and used to produce deposits on stationary substrates. Deposit properties, such as splat shape and crystal grain morphologies, apparent densities and deposition efficiencies were observed and processing parameters further optimized. The results obtained indicate that the advantages of the RF inductively coupled plasma spray technique, such as the longer particle residence time in the plasma and “cleanliness” of the process can be efficiently utilized to deposit dense tungsten metal parts or coatings.
Simulation Results of Arc Behavior in Different Plasma Spray Torches
Authors: Trelles J.P. , Heberlein J. V. R. 
Published: September 2022

Abstract
Three-dimensional, transient simulations of the plasma flow inside different plasma spray torches have been performed using a local thermodynamic equilibrium model solved by a multiscale finite element method. The model describes the dynamics of the arc without any further assumption on the reattachment process except for the use of an artificially high electrical conductivity near the electrodes. Simulations of an F4-MB torch from Sulzer-Metco and two configurations of the SG-100 torch from Praxair are presented. The simulations show that, when straight or swirl injection is used, the arc is dragged by the flow and then jumps to form a new attachment, preferably at the opposite side of the original attachment, as has been observed experimentally. Although the predicted reattachment frequencies are at present higher than the experimental ones, the model is suitable as a design tool.