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Implementing remedial and enrichment strategies followed by modeling the weight of the appraisal is the goal to be achieved in this study. The ASSURE model in this study has been used to develop an appraisal model for remedial and enrichment activities integrated with the independent curriculum in the vocational field. The results showed that the peer tutoring strategy among students could optimize remedial and enrichment outcomes. The students have shown their ability in independent and collaborative learning. In remedial and enrichment activities, groups of enrichment students have been directed to help their friends to be successful in remedial. Students' success in the remedial process is the success of enriching other students and vice versa. Each student has received an appreciation of the value according to his effort. The progress of remedial students is 8% to 82%, with an average of 10%. This progress forms the basis for determining the final score for the remedial, intermediate, and enrichment groups as tutors. The difference between the remedial and enrichment appraisal weights was determined using mathematical model 1. The final score of students who become tutors is determined using the mathematical model 3. The three mathematical models above can calculate remedial, enrichment, and tutor results. The use of this model helps teachers or lecturers to be more objective in giving grades. Lecturers' appraisal of student learning outcomes has been carried out in a transparent, fair, and accountable following the differences in the potential competencies of each student. Students have followed the learning process, the assessment process has been carried out properly, the teacher's documentation is complete, and the teacher is more confident.

The objectives of this study are (1) to train participants in good and correct English communication both grammatically and in correctly choosing the right words and (2) to train fluency in English communication to understand the skills in each component which consists of listening exercises, the use of proper and correct language structures in writing, reading comprehension, and speaking proficiency. The method used is a communicative approach method that trains students to understand the skills in each training component which consists of speaking, writing, reading and listening skills. The results of this activity showed that the training participants experienced positive changes in terms of fluency, understanding, use of language structures and vocabulary.

Penelitian ini dilakukan untuk menginventarisir jenis tumbuhan, mengetahui struktur dan komposisi vegetasi tumbuhan, menganalisis kesesuaian vegetasi tumbuhan, menduga keanekaragaman jenis serta merekomendasikan jenis-jenis pohon potensial untuk ditanam di Hutan Kota Kibitay Sukabumi. Survey dilakukan untuk mengetahui jenis-jenis pohon dan analisis vegetasi dilakukan untuk mengetahui struktur dan komposisi jenis. Hasil survey menunjukkan bahwa jumlah tumbuhan yang ditemui sebanyak 73 jenis dan 17 jenis diantaranya ditemukan dalam petak contoh seluas 1600 m2. Hasil perhitungan Indeks Nilai Penting (INP) menunjukkan jenis yang mendominasi di tingkat semai yaitu jenis Mimosa pudica dengan INP sebesar 0.75% dan sebagai spesies kodominan yaitu dari spesies Calliandra haematocephala dengan INP sebesar 0.5. Jenis vegetasi yang mendominasi di tingkat pancang yaitu Nephelium lappaceum dengan INP 1.533%. Spesies yang mendominasi pada vegetasi tingkat tiang yaitu Swietenia mahagoni dan Agathis dammara dengan masing-masing INP yaitu sebesar 1.711 dan 1.127%, sedangkan spesies yang mendominasi di tingkat pohon yaitu Agathis dammara dengan INP sebesar 2.47%. Hasil perhitungan Indeks Keanekaragaman Jenis (H’) Shannon-Wienner sebesar 4.71. Secara umum jenis-jenis pohon Hutan Kota Kibitay Sukabumi tergolong cukup sesuai dengan nilai rata-rata 60,232 yang terdiri atas 13 jenis pohon dengan kriteria sesuai, 22 jenis pohon dengan kriteria cukup sesuai dan 25 jenis pohon dengan kriteria tidak sesuai.

The defect and metallic silver (Ag) in silver phosphate (Ag3PO4) photocatalyst were successfully generated using hydroxyapatite (HA) and glucose. Two steps of synthesis were done in these experiments. Firstly, the Ag/HA powder was prepared by reacting AgNO3 and HA, followed by the addition of a glucose solution. Secondly, the suspension of Ag/HA was reacted with AgNO3 aqueous solution. The yellow product of Ag/Ag3PO4 photocatalyst was produced. The products were characterized using X-Ray Diffraction (XRD), Diffuse Reflectance Spectroscopy (DRS), Scanning Electron Microscope (SEM), Brunauer–Emmett–Teller (BET) and X-ray Photoelectron Spectroscopy (XPS). The decreased ratio of O/Ag and metallic Ag formation observed by the XPS was detected as the possible defect and Ag-doping in the photocatalyst. The enhanced photocatalytic activity might be caused by the oxygen vacancy and metallic Ag in Ag3PO4 that enables the separation of photo-generated electrons and holes.

The purpose of this study was to determine the effect of STEM-based Project learning models on students' thinking abilities. Learning with this STEM-based project model needs to be applied and trained to students because it not only develops the ability to think creatively, but also other abilities and can be developed such as critical thinking skills, and ability to make decisions. The research method that be used is quasi-experiment with the design of Nonequivalent Control Group. This research was conducted at the Cikidang State High School 1 with the research population being class X. The sampling technique used was Purposing Sampling. The results showed that the experimental class N-gain value was 0.71 higher than the control class of 0.47. The z test results show that the data produced is in accordance with the criteria namely Zhitung = 8, 91> Ztable = 1,998, meaning that H0 is rejected and H1 is accepted, meaning that the learning model STEM-based project influences students' creative thinking skills in environmental pollution material. The responses from students to the STEM-based learning model provide positive responses to the implementation of learning activities.

The research is aimed to know student achievement and teacher response on TIMSS. The research method used is descriptive. This achievement is captured the TIMSS questions in 2007 and 2011 on the ecosystem concept. The test contains 20 questions consisting of 14 essays and 6 multiple choice questions. The TIMSS questions also consist of several cognitive domains of knowing, applying and reasoning. Responses of students and teachers were collected through questionnaires and interviews. The study subjects are class VIII B 1 of School A and class VIII E School B 2 of Sukabumi in the academic year of 2015/2016. The results show that average achievement in School A is in the poor category (41%) and School B is in the fair category (56%). The achievements based on cognitive domain, 80% for knowing the domain, 43% for applying domain and 53% reasoning domain. Some students of School A and most of the students of School B feel interested in TIMSS problem, while the teachers think that TIMSS questions will be used if it already familiar.

AbstractThe purposes of this research were to improve the students’ problem-solving skills, and classroom emotional environment climate using project based learning models on the environmental issues material. Subjects in this study were students of S-1 Biology Education Department in University of Muhammadiyah Sukabumi. The method used in this study is a quasi-experiment with two sample classes and using pre-test post-test control group design. Data were collected by using a task of problem-solving skills, emotional environment classroom climate’s questionnaire and interview guides. Implementation of the study began with a pretest continued with learning activity and ended with posttest. The results showed that problem-solving skills and emotional environment classroom climate have improved both in the experimental classroom and in the comparator classroom. The significance test results by using a Mann Whitney non-parametric test showed that problem-solving skills and emotional environment classroom climate in the experimental class were differ significantly with the comparator classroom. Students responded positively to the model of project-based learning. Keywords: Project Based Learning, Problem-Solving Skills, Classroom Emotional EnvironmentalClimate, Environmental Issues Material

Pada saat ini kebutuhan akan energi listrik merupakan hal yang mutlak, hampir keseluruhan peralatan dalam rumah tangga menggunakan energi listrik. Sehingga saat penggunaan beban puncak, sering terjadi trip pada kWh meter yang mengakibatkan pemutusan mendadak pada peralatan listrik. Untuk itu perlu adanya tindakan pengendalian untuk menjaga stabilitas sistem kelistrikan yang terpakai pada penggunaan energi listrik di rumah tangga. Sistem pengendali otomatik yang diterapkan untuk mengontrol beban lebih listrik telah dirancang berbasis Arduino Uno. Dalam melakukan take over/pengendalian, sistem terbagi atas stasiun master dan stasiun slave. Stasiun master dilengkapi: Arduino uno, Sensor Arus ACS712, Radio Frekuensi (RF) 433 MHz. Stasiun master berfungsi sebagai pusat pengendalian dan pemantauan stasiun slave. Sedangkan stasiun slave yang dilengkapi oleh: Arduino uno, relay module dan Radio Frekuensi (RF) 433 MHz, yang berfungsi sebagai eksekutor take over beban listrik dengan aksi on-off pada beban listrik yang berlebih. Stasiun master memonitor penggunaan beban melalui sensor arus ACS712 dan mengirimkan sinyal data beban lebih melalui Radio Frekuensi (RF) 433 MHz dan stasiun slave akan melakukan perintah dari stasiun master untuk memutus beban. Proses pengalokasian energi listrik ini akan mengendalikan penggunaan energi listrik yang berlebih pada rumah tangga. Kata kunci - Pengendali Adaptif; Microcontroller; Stabilitas Jaringan; Sensor; Listrik Rumah Tangga

Penelitian ini dilakukan sebagai solusi untuk mengatasi masalah keterbatasan alat dan bahan praktikum matakuliah sistem kendali proses di Jurusan Teknik Elektro Universitas Sultan Ageng Tirtayasa. Langkah yang ditempuh adalah: 1) mengembangkan model virtual praktikum berbasis jaringan saraf listrik, 2) mengujicobakan model yang dikembangkan kepada mahasiswa sebagai media bantu belajar. Luaran penelitian berupa program aplikasi jaringan saraf listrik yang dapat memberikan konstribusi terhadap: 1) Optimalisasi sistem jaringan saraf listrik sebagai teknologi virtual praktikum sistem kendali proses, 2) Efektivitas dan efisiensi sistem pembelajaran yang memberikan daya tarik kepada mahasiswa karena model dan media belajar yang ditawarkan lebih menarik, 3) peningkatkan keterampilan dan hasil belajar mahasiswa pada mata kuliah praktikum Sistem Kendali proses. Kata Kunci - Jaringan Saraf Listrik, Virtual Praktikum, Sistem Kendali Proses

In certain situations, a moving or stationary object can be a barrier for a vehicle. People and vehicles crossing could potentially get hit by a vehicle. Objects around roads as sidewalks, road separator, power poles, and railroad gates are also a potential source of danger when the driver is inattentive in driving the vehicle. A device that can help the driver to brake automatically is known as Automatic Braking System (ABS). ABS is a part of the Advanced Driver Assistance Systems (ADAS), which is a device designed to assist the driver in driving the process. This device was developed to reduce human error that is a major cause of traffic accidents. This paper presents the design of ABS based on fuzzy logic which is simulated in hardware by using a remote control car. The inputs of fuzzy logic are the speed and distance of the object in front of the vehicle, while the output of fuzzy logic is the intensity of braking. The test results on the three variations of speed: slow-speed, medium-speed, and high-speed shows that the design of ABS can work according to design.

This study utilizes a detailed bibliometric analysis to thoroughly explore the literature surrounding forecasting methods and models in science education. It highlights significant trends, applications, and impacts of these methodologies. Leveraging data from the Scopus database pinpoints essential themes and notable gaps within the current body of work. The research underscores the importance of integrating forecasting techniques across various scientific disciplines and applying these techniques to address real-world challenges in education. This comprehensive analysis is intended to contribute richly to academic dialogue and guide the development of future educational strategies and policies. By identifying and discussing these key elements, the study aims to enhance understanding and implementing forecasting methods in academic settings, ultimately influencing both practice and theory in science education. [ABSTRACT FROM AUTHOR]

This systematic review examines the challenges and potential solutions to improve the implementation of collaborative learning and elearning environments in universities. The article analyzes 200 relevant articles published between 2014- 2022 using a qualitative approach to identify themes and sub-themes related to collaborative learning and elearning environments. The study reveals various learning methods employed, including MOOC (Massive Open Online Course), digital mind maps, and tripartite learning, but also highlights challenges such as lack of digital infrastructure, low-quality internet networks, and inadequate practical tools. The research emphasizes the need for effective leadership and management in vocational institutions and recommends further research on curriculum development, learning evaluation methods, lecturer performance assessment, and improving digital infrastructure and educator training. Collaboration with industry and other training institutions is also suggested to improve students' employability and entrepreneurship skills. [ABSTRACT FROM AUTHOR]

In this letter, a dual-wideband band pass filter (DW-BPF) using cross-stub stepped impedance resonator (CS-SIR) was simulated, fabricated, and measured accordingly. The CS-SIR was used to replace the conventional half-wavelength open stub resonators. Compare to the conventional resonator, the CS-SIR resonator has a wider fractional bandwidth and ease of fabrication. Furthermore, the DB-BPF was fabricated on microstrip with ɛr = 4.4, h = 0.8 mm, and tan δ = 0.0265. The DW-BPF with CS-SIR achieves transmission-coefficients/fractional-bandwidth of 0.22 dB/94.19% and 1.87 dB/33.52% at 1.14 GHz and 2.31 GHz, respectively. In order to reduce the filter size, a folded CS-SIR (FCS-SIR) was also proposed. As a result, this BPF size was reduced to 53%, with the BPF size of 0.30 λG2 and 0.14 λG2 for DW-BPF with CS-SIR and DW-BPF with folded CS-SIR, respectively. The λG is the wavelength at the first frequency. Further, the DW-BPF with FCS-SIR achieves transmission coefficients/fractional bandwidth of 0.19 dB/89.08% and 1.29 dB/31.90% at 1.21 GHz and 2.41 GHz, respectively. Measured results are in a very good agreement with the simulated results. [ABSTRACT FROM AUTHOR]