bluuebunny/crossref_metadata_2025_split huggingface dataset:
Implementasi Media Google Classroom dalam Pembelajaran Teks Cerita Hikayat Kelas X-5 di SMA N 11 Semarang
Authors: Nurus Sa’adah  , Hana SilmaHadana  , Titis Ardyasti  , Asep Purwo Yudi Utomo  , Eva Wulandari  , Rossi Galih Kesuma  , Zabidi Agus Winanto  
Published: November 2024

Cross-age stories or also known as hikayat story texts have their own uniqueness when compared to other types of texts. The uniqueness of the hikayat story text is in the presentation of the language in the story that uses archaic language, the contents of the story, and the plot used in the story. These uniqueness certainly requires an effective strategy in the learning process. After the Covid-19 pandemic has changed many aspects of human life, one of the aspects that has an impact is the field of education. In the field of education that is very influential is an educator or teacher. A teacher is required to always update and actualize the times and technology in relation to the learning process. Teachers must find alternative solutions to various problems for the smoothness and achievement of learning. One alternative solution to this problem is the implementation of Google Classroom media with a hybrid learning system. The hybrid teaching and learning process can use the help of electronic technology, one of which is Google Classroom. The method used is descriptive qualitative. The purpose of this article is to describe the implementation of Google Classroom in teaching story texts for class X-5 at SMA N 11 Semarang. The results obtained from this article are that the implementation of Google classroom in learning story texts for class X-5 at SMA N 11 Semarang runs well and smoothly and can improve student learning outcomes.

Keywords: technology, media google classroom, hikayat story text
Penerapan Model Pembelajaran Active Learning dengan Menggunakan Games Roda Pintar untuk Meningkatkan Minat Belajar Materi Perkalian Pelajaran Matematika Kelas III SDIT Baitul Ilmi
Authors: Selvina Zulpa  , Sakban Sakban  , Wismanto Wismanto  
Published: November 2024

The Active Learning method is active learning. Most practitioners and observers refer to it as a learning by doing strategy. The approach views learning as a process of building understanding through experience and information. With this approach, learners' unique perceptions, knowledge and feelings influence the learning process. The problems in this study are (1) How is student interest in learning in the application of the Active Learning learning model using smart wheel games multiplication material of class III mathematics lessons SDIT Baitul Ilmi (2) Whether the application of the Active Learning learning model using smart wheel games can increase student interest in learning multiplication material of class III mathematics lessons SDIT Baitul Ilmi. This research includes Classroom Action Research (PTK) conducted in two cycles using quantitative analysis and qualitative analysis methods. Each cycle consists of four stages, namely design, implementation, observation, and reflection. The subjects of this study were third grade students of SDIT Baitul Ilmi, totalling 33 students. The research data was obtained using teacher and student observation sheets and student learning interest test results, then the data was analysed using the percentage formula. The results obtained are (1) teacher activity in cycle I using the Active Learning model from 87.50% to 93.75% in cycle II, (2) student activity in cycle I using the Active Learning model 54.64% to 85.17% and, (3) the results of student learning interest in Mathematics subjects cycle I using Active Learning 32.25% to 83.87% in cycle II. This shows that the results of students' confidence in Mathematics subjects using the Active Learning model show very positive results. Based on the results of this study, it can increase students' interest in learning to be more active and the teacher's ability to improve for the better.
Mayor Inclusión Social Y Seguridad Ciudadana En Bolivia
Authors: Ribera Cuellar Julio 
Published: November 2024

En los últimos años, Bolivia logro un conjunto de transformaciones sociales y económicas importantes: mayores niveles de crecimiento económico de Sudamérica, reducción de sus índices de pobreza, cambios demográficos significativos. Por ejemplo, el 67% de la población ahora vive en áreas urbanas y más de la mitad (57%) reside en las 9 ciudades capitales y El Alto, evidenciando un proceso migratorio campo–ciudad irreversible. Producto de este crecimiento, se amplió la clase media urbana con mayores ingresos, provocando a su vez la emergencia de nuevas demandas y necesidades por parte de la población. (PNUD. Informe Regional sobre Desarrollo Humano para America Latina y el Caribe., 2016). Sin embargo, estos cambios sociales y económicos no se han traducido en su totalidad en mejores condiciones de bienestar de la ciudadanía. Por un lado, la calidad del empleo no ha evidenciado mejoras, la inserción laboral de los jóvenes continúa precaria y la participación de las mujeres en el mercado de trabajo permanece por debajo de la de los hombres. Por otro, la calidad de los servicios de salud, vivienda y educación siguen siendo un reto para el país hombres (PNUD (Programa de las Naciones Unidas para el Desarrollo), 2015). Asimismo, este crecimiento vino junto a importantes retos en materia de seguridad ciudadana. Evidencia de esto es que la inseguridad y la delincuencia se ubican entre las principales preocupaciones de los ciudadanos bolivianos en los últimos años. Esto se explica, por un lado, debido al crecimiento urbano en el país que no ha sido del todo incluyente, pues, si bien se amplió la clase media, todavía existe un cúmulo de personas que no ha podido integrarse completamente a este grupo. En los hechos, esta clase media “vulnerable” tiende a experimentar mayores expectativas en su calidad de vida, pero sin oportunidades para concretarlas A su vez, las transformaciones sociodemográficas como resultado del crecimiento económico y los cambios sociales han constituido la existencia de nuevas estructuras familiares, la presencia de facilitadores del delito como el alcohol, las drogas y las armas y se ha presenciado la degradación de los espacios urbanos. (PNUD (Programa de las Naciones Unidas para el Desarrollo), 2015).
Influence of Teachers’ age, gender, and personality on Students’ Academic Achievement in Kiswahili: A case of Public Secondary Schools in Murang’a and Kiambu Counties
Authors: Wanjiru Munyaka Lucy , Bunyi Prof. Grace , Itolondo Dr. Wilfrida 
Published: November 2024

Purpose: Teachers have a vital influence on students’ academic achievement. The steady decline in academic performance of secondary school students has generated a lot of interest among stakeholders in the education sector in Kenya. Despite efforts by teachers to improve their skills and technical expertise the performance of students in KCSE examinations and Kiswahili in particular has not been encouraging. In the year 2020, Murang’a and Kiambu posted the least mean scores of 4.3 and 4.4 respectively in comparison to neighboring counties Nyeri and Kirinyaga which had mean scores of 4.62 and 4.64 respectively. The purpose of this paper was to establish the nexus between Kiswahili teacher characteristics and students’ academic achievement in Kiswahili at the Kenya Certificate of Secondary Education examination (KCSE) results in Kiambu and Murang,a counties. The objective of this paper was to establish the influence of teachers’ age, gender, and personality characteristics on students’ academic achievement in KCSE examination results.
Methodology: A descriptive survey research design was utilised. The target population was 29,134 comprising 512 principals, 1,172 teachers, and 27,450 students across 512 secondary schools in Murang’a and Kiambu counties. A sample size of 103 schools through proportionate and 299 Kiswahili teachers, and 395 students was obtained through Yamane sampling formula. Purposive sampling criteria were used to obtain 103 principals across the 103 sampled schools. Data was collected using a questionnaire for principals, students, and teachers.
Results: It was established that teachers’ Pedagogical Content Knowledge, professional skills and academic achievement, and teachers’ characteristics positively influenced student academic achievement in Kiswahili at KCSE, (M = 4.0, SD = 1.1), (M = 3.9, SD = 0.8) and (M = 3.8, SD = 1.1) respectively. ANOVA test showed teachers characteristics in terms of gender was the only aspect which statistically, significantly differed with teachers’ response and the response from principals and students, p =. 000. These findings emphasized the complexity of teachers’ factors affecting students’ academic achievement.
Conclusion: There is a nexus between teacher characteristics and students’ academic achievements as perceived by principals, teachers, and students. This is related to recommendations that every practicing teacher should enroll in a teacher performance development program initiated by TSC to enhance and update teacher pedagogical content knowledge in teaching for an impressive students’ academic achievement.
Gain Enhancement of Patch Antenna using Novel Glass Fiber Reinforced Polymer (GFRP) based Metasurface
Authors: Ali A. K. M. S. , Ahmed I. , Ali S. , Khalid M. 
Published: November 2024

In this paper, the authors have presented extensive work done involving the design, simulation, development, and performance measurement of a novel Glass Fiber Reinforced Polymer (GFRP) composite-based metasurface patch antenna. The authors have first designed GFRP composite-based metasurface patch antenna and simulated the design to measure its performance. Then the same antenna has been indigenously developed following the design specifications. Using the developed antenna, measurements have been recorded and performance has been analysed. Moreover, considering the significance of benchmarking, the authors have also compared the performance of the design and developed GFRP composite-based metasurface patch antenna results against the performance of Linear C-band patch antenna and a GFRP-based metasurface patch antenna. The results obtained through simulation and testing show characteristic similarity thus validating the approach adopted for the printing of copper on GFRP composite. The results also show that using GFRP composite as a metasurface on top of simple microstrip patch antenna results in an overall 39% gain enhancement compared to simple microstrip patch antenna gain.
Improving the Rheological Properties of Water-based Drilling Muds Using Waste Glass Powder
Authors: Igbani S. , Akari Nelson Tombra , Peletiri S. P. , Ambaga J. J. 
Published: November 2024

In this study, we examined the rheological characteristics of water-based drilling muds incorporated with waste glass powder (WGP) of eight different weights (0, 1.5, 2.0, 2.5, 3.0, 3.5, 4.0, and 4.5 g). The waste glass powder was analysed using FTIR spectroscopy, SEM-EDS, XRD, and particle size analyser, to determine the specific components or compounds present, and the predominate particle size. The analyses showed that the waste glass powder mainly consisted of silicone oxides (SiO2), indicating that it is a pozzolanic material. Moreover, the dimensions of the particles had a substantial impact on the rheological characteristics. In addition, the study assessed the rheological characteristics of the prepared water-based drilling muds by employing a rotational viscometer. This involved measuring the gel strength at 10-second and 10-minute intervals, while keeping the rotational speed constant at 3 rpm. The investigation also recorded the viscosity and yield points at speed of 300 and 600 rpm. Furthermore, the investigation assessed the plastic viscosity, apparent viscosity, gel strength, and yield point for eight distinct amounts of waste glass powder under standard conditions. As a result, the plastic viscosity of the mud systems increased from 10 to 31 cP, and the apparent viscosity increased from 20 to 44.5 cP as the weight of the waste glass powder increased from 0 to 4.5 g in each of the formulated muds. Furthermore, the highest plastic, and apparent viscosity values were averagely identified, and recorded as 30 and 45.7 cP with an optimal WGP concentration (3.5 g of WGP per 350 ml of deionised water). Whereas, the optimal GS was achieved at 5 and 8 lb/100 ft2 after 10 seconds and 10 minutes, respectively, when the dosage of WGP increased to 2.5 g. Also, as the concentration of WGP reached 4.0 g, the YP dropped from 35 to 8 lb/100 ft2 compared to the YP at a WGP concentration of 3.5 g. Correspondingly, the viscosity and yield point at which the gel solidifies rose as the concentration of waste glass powder increased. Environmentally, utilising waste glass powder to enhance the rheological characteristics of water-based drilling mud has the potential to mitigate the glass waste disposal issues, to the environment, and offer a feasible substitute for commercially accessible additive. This study offers vital insights into the alternative and efficient utilisation of waste glass powder in drilling the conductor and surface interval of a wellbore.
Within a hair's breadth of buying the product: The impact of tangible and intangible bodily cues of contamination: The role of disgust and mental imagery
Authors: Gérard Jessica , Helme‐Guizon Agnès 
Published: June 2018

SummaryIn most retail environments, customers can handle products. However, the downside of this freedom to touch products is product contamination. The objectives of this paper are threefold: (a) to examine the effects of contamination cues (tangible vs. intangible) on consumer responses; (b) to show the mediating role of contamination, disgust, and mental imagery; and (c) to assess the robustness of the results on three product categories for different levels of contact intimacy. Three experimental laboratory studies on different product categories (a book [n = 95], T‐shirt [n = 118], and apple [n = 102]) showed that tangible contamination cues decreased product evaluation and purchase intentions more than intangible contamination cues did. Moreover, contamination, disgust, and mental imagery mediated the effects of contamination cues on product evaluation and purchase intention. The findings provide theoretical and practical insights to help researchers and retailers understand the effect of tangible contamination cues on consumer responses.
Short‐Fluorinated iCVD Coatings for Nonwetting Fabrics
Authors: Soto Dan , Ugur Asli , Farnham Taylor A. , Gleason Karen K. , Varanasi Kripa K. 
Published: June 2018

AbstractWater repellency is often generated by taking advantage of surface textures and low surface energy coatings such as the one afforded by long perfluorinated side‐chains polymers. However, new regulations are phasing out these polymers because of their related health and safety hazard concerns. This is a particular challenge for water‐repellent fabrics as consumers expect safer products with stable performance and new functionalities. In this work, an approach is developed that allows for iCVD deposition of durable, conformal short fluorinated polymers stabilized with a crosslinking agent. As a result, high hydrophobicity and low liquid adhesion are achieved simultaneously while maintaining initial substrate breathability. It is explained why this polymeric coating—1H,1H‐perfluorooctyl methacrylate co divinylbenzene—exhibits remarkable hydrophobic properties amidst a wide range of other possible candidates. In order to further enhance the dynamic water repellency performance, the chemical treatment is combined with physical texturing—obtained through microsandblasting, a process particularly suitable for fabrics—thus making this combined approach a suitable candidate to meet the industrial needs. This work paves the way for the development of environmentally friendly, highly repellent coatings for large volume production and the application of roll‐to‐roll coating techniques, and multifunctionalization of fabrics and wearable devices.
Modifying Temperature Stability of (K,Na)NbO3 Ceramics through Phase Boundary
Authors: Lv Xiang , Wu Jiagang , Xiao Dingquan , Zhu Jianguo , Zhang Junwei , Zhang Xi‐xiang 
Published: June 2018

Abstract(0.99‐x)(K0.5Na0.5)(Nb0.965Sb0.035)O3‐0.01SrZrO3‐x(Bi0.5Na0.5)ZrO3 ceramics are chosen as an example to illustrate the effects of phase boundaries on strain. Temperature‐dependent dielectric permittivity and convergent beam electron diffraction patterns confirm the multiphase coexistence of rhombohedral, orthorhombic, and tetragonal phases in the ceramics with x = 0.03–0.04. Intriguingly, the ceramics with x = 0.03 display improved temperature stability in strain, e.g., a high retention (≈95%) of unipolar strain at 180 °C and low variation of 24% at 20–180 °C. A mode is proposed to show how to effectively tailor the strain and consolidate its temperature stability in potassium sodium niobate‐based ceramics.
Are there health benefits of being unionized in late career? A longitudinal approach using HRS
Authors: Wels Jacques 
Published: June 2018

ObjectiveTo assess whether unionization prevents deterioration in self‐reported health and depressive symptoms in late career transitions.MethodsData come from the Health and Retirement Study (N = 6475). The change in self‐perceived health (SPH) and depressive symptoms (CESD) between wave 11 and wave 12 is explained using an interaction effect between change in professional status from wave 10 to wave 11 and unionization in wave 10.ResultsThe odds of being affected by a negative change in CESD when unionized are lower for unionized workers remaining in full‐time job (OR:0.73, CI95%:0.58;0.89), unionized full‐time workers moving to part‐time work (OR:0.66, CI95%:0.46;0.93) and unionized full‐time workers moving to part‐retirement (OR:0.40, CI95%:0.34;0.47) compared to non‐unionized workers. The same conclusion is made for the change in SPH but with odds ratios closer to 1.ConclusionThe reasons for the associations found in this paper need to be explored in further research.
Superprotonic Conductivity in Flexible Porous Covalent Organic Framework Membranes
Authors: Sasmal Himadri Sekhar , Aiyappa Harshitha Barike , Bhange Siddheshwar N. , Karak Suvendu , Halder Arjun , Kurungot Sreekumar , Banerjee Rahul 
Published: June 2018

AbstractPoor mechanical stability of the polymer electrolyte membranes remains one of the bottlenecks towards improving the performance of the proton exchange membrane (PEM) fuel cells. The present work proposes a unique way to utilize crystalline covalent organic frameworks (COFs) as a self‐standing, highly flexible membrane to further boost the mechanical stability of the material without compromising its innate structural characteristics. The as‐synthesized p‐toluene sulfonic acid loaded COF membranes (COFMs) show the highest proton conductivity (as high as 7.8×10−2 S cm−1) amongst all crystalline porous organic polymeric materials reported to date, and were tested under real PEM operating conditions to ascertain their practical utilization as proton exchange membranes. Attainment of 24 mW cm−2 power density, which is the highest among COFs and MOFs, highlights the possibility of using a COF membrane over the other state‐of‐the‐art crystalline porous polymeric materials reported to date.
Control charts with random interarrival times between successive samplings
Authors: Koutras Markos V. , Rakitzis Athanasios C. 
Published: June 2018

AbstractIn the classical setup used in process monitoring, the times between the collection of successive plotted samples are considered as nonrandom. However, in several real‐life applications, it seems plausible to assume that the time needed to collect the necessary information for plotting a point in the control chart has a stochastic nature. Under this scenario, instead of focusing on the number of points plotted on the chart until an out‐of‐control signal is initiated, the appropriate statistic to look at is the total time until a signal is generated. If we denote by L the run length of a control chart and by Yt,t = 1,2,…, the times between successive plotted points, then the compound random variable
expresses the time to signal of a monitoring scheme, under a particular sampling policy. In this paper, we illustrate how SL can be exploited to study various charts that are suitable for monitoring Poisson observations. We provide some results for the exact distribution of SL that may facilitate the task of the performance assessment of a control chart with random plotting times; illustrations and several numerical comparisons that are useful for quality control experts who wish to practice them are presented, and finally, an illustrative example elucidating the implementation of the proposed model is also provided.
From Tetraphenylfurans to Ring‐Opened (Z)‐1,4‐Enediones: ACQ Fluorophores versus AIEgens with Distinct Responses to Mechanical Force and Light
Authors: Liu Xia , Li Mengwei , Liu Meifang , Yang Qiuhua , Chen Yulan 
Published: June 2018

AbstractTwo aryl‐substituted tetraphenylfurans (TPF‐1 and TPF‐2) and the corresponding ring‐opened (Z)‐1,4‐enedione derivatives (TPBD‐1 and TPBD‐2) have been successfully synthesized. Although all the molecules adopt propeller‐like configurations, experimental results revealed that the tetraphenylfurans (TPFs) were aggregation‐caused quenching (ACQ) fluorophores whereas the 1,4‐enediones (TPBDs) were aggregation‐induced emission (AIE) active. Additionally, the TPFs and TPBDs exhibited contrasting “turn‐on” mechanochromic behavior, with an unusual blueshift of mechanochromic fluorescence for the TPFs and a remarkable redshifted mechanochromism for the TPBDs. Both of these solid‐state optical properties were proven to be highly dependent on the mode of molecular packing and substituent effects. In particular, in addition to the tunability of the fluorescent properties through aggregation and mechanical force, ground TPF‐1 was found to be efficiently sensitive to light. On the basis of these findings we constructed a smart film with ground TPF‐1 and demonstrated its utility in data encryption and decryption well controlled by UV light. Therefore, this work not only provides an insight into the mechanism of AIE as well as mechanochromic effects, but also paves the way towards the development of multifunctional stimuli‐responsive materials and devices.
Tungsten Borides: On the Reaction of Tungsten with Boron(III) Bromide
Authors: Henschel Anne , Binnewies Michael , Schmidt Marcus , Köppe Ralf , Burkhardt Ulrich , Grin Yuri 
Published: June 2018

AbstractThe crucible‐free reaction between heated tungsten wires and gaseous boron tribromide yields different tungsten borides. The experiments were carried out at various reaction temperatures and times, revealing the formation of W2B, WB and WB2 phases. The underlying reactions were analyzed by using thermodynamic model calculations. The stability of the gaseous tungsten bromides was evaluated using quantum chemical methods. While the developed synthesis of phase‐pure borides is only possible to a limited extent, it offers a potential route for a formation of protective coatings with high chemical and thermal resistance.