bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analisa Sifat Mekanis Komposit Epoksi/Partikel Silika dari Ekstraksi Sekam Padi
Authors: Mulyadi Mulyadi 
Published: August 2024

Pengaruh silika dioksida terhadap sifat mekanis epoxy resin yang dimodifikasi diteliti dengan menggunakan pemodelan komputer. Komposit partikel ini diproduksi dari sistem resin Eposchon yang dimodifikasi dengan 0, 2, 4 and 5% massa silica. Perangkat lunak Salome Meca digunakan untuk memodelkan uji bending tiga titik. Hasil pemodelan kemudian divalidasi dengan hasil pengujian material di laboratorium. Hasil menunjukkan bahwa kekuatan lentur resin epoksi yang telah dimodifikasi meningkat sebesar 14% dengan kandungan partikel silika maksimum yaitu 4%. Sebaliknya, ketangguhan retak menurun seiring dengan pemasukan partikel silika kedalam sistem resin epoksi. Lebih jauh lagi, ketangguhan retak meningkat seiring dengan bertambahnya jumlah partikel silika sampai 5%. Hasil penelitian ini menyimpulkan bahwa silika dari sekam padi adalah pengisi potensial untuk material komposit polimer.
Pengaruh Temperatur Hardening dengan Media Pendingin Udara terhadap Sifat Mekanik Baut Pengikat Ban Truck (41Cr4)
Authors: Yulfitra  , M. Z. Haris  
Published: August 2024

Dalam perkembangan dunia saat ini, material logam sangat banyak digunakan untuk berbagai komponen yang digunakan untuk menahan beban besar dikarenakan kualitas ketahanan dan kekuatannya sangat baik, walaupun sekarang sudah ditemukannya bahan komposit sebagai pengganti logam, namun tidak semua elemen-elemen mesin bisa digantikan dengan bahan komposit sebagai fungsi logam seperti halnya baut. Dalam hal ini baut mengalami kegagalan berupa patah, oleh karena itu perlu dilakukan penelitian untuk menganalisa kegagalan. Penelitian ini menjelaskan tentang sifat mekanik yang diperoleh dari hasil pengujian baut yang meliputi pengujian tarik, pengujian kekerasan, dan pengujian mikrostruktur dengan terlebih dahulu diberikan perlakuan panas. Hasil pengujian kekuatan tarik dari spesimen untuk kondisi tanpa perlakuan panas, temperatur hardening 850°C, temper 550°C, dan temper 500°C berturut-turut adalah 3392,78 MPa, 3478,55 MPa, 3449,95 MPa, dan 3402,30 MPa. Nilai kekerasan spesimen tanpa perlakuan, hardening 850°C, temper 550°C, temper 500°C adalah 297,4 HRC, 360,8 HRC, 343,2, dan 329,7 HRC. Dan pada pengujian struktur mikro pengaruh media pendingin udara dan perbedaan suhu menghasilkan tiga struktur mikro yaitu ferrit, perlit dan martensit.
Uji Kinerja Turbin Francis Skala Laboratorium dengan Variasi Bukaan Katup
Authors: Mukhri Zulfian , Zainuddin  
Published: August 2024

Turbin Francis merupakan salah satu jenis turbin air yang digunakan untuk mengkonversikan energi potensial air menjadi energi mekanik. Peningkatan performa pada turbin Francis dipengaruhi oleh beberapa faktor, salah satunya adalah dengan cara mengatur pembukaan katup air yang akan masuk ke runner turbin. Adanya pengaturan pembukaan katup air yang masuk ke runner turbin sangat penting untuk meningkatkan kinerja dari dari turbin Francis. Pengaturan pembukaan katup turbin Francis ini berguna untuk mendapatkan nilai-nilai optimasi dari pengujian turbin Francis. Dalam pengujian turbin Francis ini pembukaan katup diatur dengan pembukaan sebesar 90°, 75°, 60°, 45°. Dari hasil penelitian ini didapatkan untuk pembukaan katup 90° menghasilkan daya turbin sebesar 112,855 W, pada pembukaan katup 75° menghasilkan daya turbin sebesar 102,801 W, pada pembukaan katup 60° menghasilkan daya turbin sebesar 95,287 W dan pada pembukaan katup 45° menghasilkan daya turbin sebesar 82,608 W. Untuk unjuk kerja terbaik didapatkan dari pembukaan katup 90° karena daya turbin yang dihasilkan lebih besar.
Item Analysis of Arabic Thematic Questions to Determine Thinking Level Ability
Authors: Kadir Suleman , Sarif Suharia , Fuadi Abdul Hafizh Nur 
Published: August 2024

Background: The item analysis of Arabic thematic questions is to determine whether the questions used are categorized as HOTS (High Order Thinking Skill) questions.
Purpose: the purpose of writing research is to analyze Arabic thematic questions based on HOTS (High Order Thinking Skills), namely the analysis of items that fall into the criteria and have a high level of thinking power.
Method: the research method used is a combination of qualitative and quantitative because the analysis in this study requires analysis from both perspectives to produce accurate results verbally and numerically. The sample in the study amounted to 101 people consisting of 3 classes. The method of data collection is by distributing questions to students and analyzing them using the Anates application.
Results and Discussion: the results of the analysis that the existing items still contain a low level of thinking LOTS (low order thinking skills), therefore it is necessary to make improvements and revisions so that they can be retested at the following stage. Specifically based on the results of the analysis several questions are still included in the C3 criteria, namely questions number 6 and 15, C2 is found in question number 14, and C1 is found in questions number 7-12. Meanwhile, based on its quality as measured through the Anates application, the XY correlation has a value of 0.63, the reliability of the test score is 0.78, and the level of difficulty is found in questions number 2, 14, 11, and 15 which still need to be corrected.
Conclusions and Implications: Therefore, based on the results obtained after going through several stages of analysis, show that the thematic questions that have been tested are of sufficient quality in terms of quality.
Malting - ‘the middle parts of fortune’ - a history of innovation and the enduring quest for efficiency
Authors: Evans David Evan , Shen Wenbiao , Brookes Peter 
Published: August 2024

Why was the work done: The malting process has long been a target for innovation to improve malt quality. The efficiency of utilisation of labour, capital, water and energy, particularly the energy intensive kilning process is a key target for maltsters to reduce the environmental footprint and costs. Similarly, water use during steeping is a priority due to scarcity of water and regulations regarding the disposal of wastewater.
How was the work done: A comprehensive review of the literature was undertaken to identify prospects for improving the efficiency of the malting process.
What are the main findings: The malting process involves: (i) selection of barley variety of suitable quality (protein, microbiologically sound); (ii) cleaning and grading; (iii) steeping in water with dry rests over one to two days, moisture increases from 10-13 to >40% (ideally 42-45%); (iv) germination at 12-16°C in a flow of humid air to maintain malt moisture at 42-46%; (v) kilning at between 50-85°C with hot dry air and (vi) storage and blending of malt to specification. Analysis of these steps shows that there is potential to reduce water use and discharge by ~40% with the Optisteep® system. In terms of energy, kilning uses 80-90% of all malting energy (conventionally gas), which makes kilning attractive for energy savings. Marginal energy savings can be made by lowing malt moisture to <40% before germination/kiln transfer and reducing malt moisture to <9% rather than 4-6%. Novel solutions include using green malt and barley brewing which save energy (especially kilning). Although for brewing with unkilned green malt, significant challenges remain to be solved. However, over the past 25 years, maltsters have been successful in incrementally reducing kilning energy by 20-35% per decade.
Why is the work important: Increasing malting efficiency while maintaining or improving quality has important implications for reducing costs and reducing the environmental footprint of the malting process.
Kinerja Tenaga Administrasi Sekolah (TAS) di SMK Negeri Kota Padang
Authors: Rahmi Meilia , Nellitawati Nellitawati 
Published: August 2024

This research is motivated by the results of observations of researchers to several State SMKs in Padang City which indicate the low performance of school administration personnel in State SMKs in Padang City. Therefore, the problem to be studied in this study is “how is the performance of School Administration Personnel (TAS) in State Vocational Schools in Padang City?”. Thus the purpose of this study is to obtain information and describe the performance of school administration personnel at SMK Negeri Kota Padang. The type of research used is descriptive with a quantitative approach. The population in this study were school administration personnel whose number was 153 TAS and the sample size was 63 TAS. The sample was drawn using the Slovin formula and taken using the Cluster Random Sampling technique. . The results of this study indicate that the performance of TAS in SMK Negeri Padang City is in the high category based on 4 indicators: 1) work quantity with an average score of 4.44, 2) work quality with an average score of 4.42, 3) punctuality with an average score of 4.40, 4) responsibility with an average score of 4.40. Overall, the performance of TAS in SMK Negeri Kota Padang is in the high category with an average score of 4.42.
Developing career pathways and work flexibility to enhance employee spirit: A case study of the Lost and Found Department at PTJAS company
Authors: Laksmini Ni Putu Vernanda , Waelan Waelan , Kusminantari Anik , Harahap Ratna Dewi , Pasaribu Ika Mary 
Published: August 2024

The aim of this study is to develop a comprehensive model for career path development and work flexibility to enhance employee morale in the Lost and Found Department of PTJAS company. This research addresses the growing need for adaptable career structures and flexible work arrangements as pivotal factors in improving job satisfaction and employee engagement. Data were collected using a mixed-methods approach, comprising surveys and interviews with employees in the Lost and Found Department. The survey data provided quantitative insights into employee satisfaction levels, while the interviews offered qualitative perspectives on the impact of career paths and work flexibility on morale. The analysis revealed a strong correlation between clearly defined career paths, flexible work options, and heightened employee morale. Employees who perceived clear advancement opportunities and enjoyed flexible working conditions reported significantly higher job satisfaction and motivation levels. Additionally, the findings suggest that implementing these strategies can lead to reduced turnover rates and improved organizational commitment. In conclusion, the study underscores the importance of integrating career development and work flexibility into the organizational framework to foster a positive work environment. These insights are crucial for HR professionals and management of the company aiming to boost employee morale and productivity.
Evaluating Hypertension Management at a Student Run Free Clinic in Alabama
Authors: Sowell Josiah , Wagner Grant , Chambers Emmie , Van Wagoner Nicholas 
Published: August 2024

Background: Healthcare remains unavailable for many persons who are un- or under-insured. Equal Access Birmingham (EAB) is a student run free clinic that provides urgent, primary, and specialty care to the Birmingham area. The purpose of this study was to evaluate EAB’s effectiveness in hypertension management.
Methods: A total of 137 patient records were identified with hypertension. After exclusion criteria were applied, the cohort consisted of 66 patients. The average number of clinic visits per patient was 6.4 (standard deviation [SD] ± 4.1).
Results: Systolic blood pressure decreased from 151.3mmHg to 140.6mmHg (p=0.0028, t(64)=2.95, 95% confidence interval [CI] 3.82, 17.57). Diastolic blood pressure decreased from 90.7mmHg to 85.5mmHg (p=0.0120, t(64)=2.37, 95% CI 1.18, 9.27).
Conclusions: In patients with consistently recorded vital signs that followed up with regular clinic visits, blood pressure over time was significantly reduced. However, many patients were lost to follow up.
Sosialisasi Dampak Pernikahan Dini Perspektif Pendidikan, Kesehatan Dan Ekonomi Di Desa Pringgabaya Utara
Authors: Hadiyani Baiq , Sulfiana Baiq , Wahyu Astuti Ristina , Widia Wati Via , Hirjan Muhamad , Haris Zarkasi Muhammad , Lestari Sopiana 
Published: August 2024

Early marriage is one of the crucial problems experienced by the Indonesian national, especially as NTB The province is the first province for women before the age of 18. So there is a need for cooperation from all agencies in preventing this problem, one of which is by having a comprehensive understanding of the causes and consequences of early marriage as a preventive measure for this problem. So this socialization activity is very important to change people's understanding regarding the causes and impacts of early marriage. This service activity was carried out using the socialization method and took place in the hall building with the Pringgabaya Utara village office. After conducting socialization, they believe that early marriage brings losses in terms of education, health and economics.
Peningkatan Pengetahuan Tuberkulosis (Tbc) Melalui Upaya Mengurangi Angka Penderita Di Wilayah Kerja Puskesmas Sragi Kab. Pekalongan
Authors: Wahyu Permadi Yulian , Rahmatulah St , Nizmah Fajriyah Nuniek , Meilia Nanda , Mardiyani Sari Intan 
Published: August 2024

Indonesia telah menempati peringkat ke 5 dunia sebagai negara dengan jumlah penderita tuberkulosis (TBC) terbanyak. Hal ini membuat pemerintah harus lebih berupaya dengan giat dalam melakukan pencegahan terjadinya penyakit TBC paru serta berfokus pula pada pengobatan bagi masyarakat yang sudah terkena penyakit tersebut. Tujuan pengabdian Masyarakat ini untuk meningkatkan pengetahuan masyarakat dalam mendeteksi secara dini adanya penyakit TBC. Metode kegiatan pengabdian meliputi 3 tahapan yaitu tahap persiapan, tahap pelaksanaan dan tahap evaluasi, sebagai berikut : Tahap Persiapan meliputi: administrasi, flayer dan persiapan masyarakat, Tahap Pelaksanaan meliputi : pembagian lembar kuesioner pre test, penyuluhan, Diskusi dan tanya jawab dan Tahap Evaluasi meliputi : pembagian lembar kuesioner post test. Pengabdian kepada masyarakat dosen dan mahasiswa khususnya warga Kecamatan Sragi Kab. Pekalongan menjadi sasaran dan diharapkan dapat diaplikasikan guna upaya pencegahan terjadinya TBC dalam kehidupan sehari-hari. Dengan peningkatan pengetahuan tentang TBC, tentang tanda dan gejala, pencegahan dan penatalaksanaannya, diketahui dari hasil pre test dan post test pada pre test 49.3% baik dan 20% kurang mengenai pengetahuan tentang TBC. Pada post test tingkat pengetahuan tersebut meningkat menjadi 61.5% dan 0% kurang. Setelah mayarakat mendapatkan penyuluhan mengenai pengobatan TBC, tentang tanda dan gejala, pencegahan dan penatalaksanaannya, pengetahuan masyarakat Kecamatan Sragi Kab. Pekalongan mengenai pengobatan TBC meningkat.
Pengaruh Preferensi Media Sosial Institusi Terhadap Minat Daftar Camaba Ilmu Komunikasi
Authors: Khoirunnisa Alifah , Prabawati Alodia Bidara 
Published: August 2024

Social Media can help prospective new students to find the information needed as a consideration for choosing a major. This study aims to examine the effect of institutional social media preferences on the interest in registering prospective new students majoring in Communication Science, State University of Malang. This research is a quantitative approach that uses a survey method of 200 respondents in data collection. The research subjects were 12th grade high school students in East Java who wanted to continue to the university level as prospective new students majoring in Communication Science who were randomly selected by designing a questionnaire of questions related to social media preferences and interest in enrolling students in the Communication Science department through google form. In this study, researchers used the basic theory of the Technology Acceptance Model (TAM) in determining 3 factors that influence the use of a system: Perceived Usefulness, Perceived Ease of Use, and Intention To Use. Based on the results of the analysis, Social Media Preference contributes to a significant influence on Register Interest by 41%, and the remaining 59% is explained by other variables, which means that Social Media has a partially significant effect on Register Interest.
Deskripsi Kesulitan Belajar Siswa SMAN 3 Padang Panjang Pada Materi Asam Basa Kelas XI SMA/MA
Authors: Rizki Rahmadhani  , Guspatni Guspatni  
Published: August 2024

Acid-base topic is considered as a difficult topic by high school students of SMAN 3 Padang Panjang. This is proofed by the result of their mark that showed 80.2% of 101 students do not past the test. This is an indication that the students hava a learning difficulties. Learning difficulties is the condition where someone has an obstacle in learning about something. This research intend to identify the student’s learning difficulties on acid-base topic and find out the factors of their learning difficulties. The method of this research is descriptive method. The sample of this research are 32 students of class XI IPA 3 SMAN 3 Padang Panjang. And from the research, researcher find out that the percentage of learning difficulties indication of the sample is 46.8% with the category is high enough. This learning difficulties are influenced by scheduling and implementation of learning factors.
Pengaruh Permainan Balok Angka Terhadap Kemampuan Mengenal Lambang Bilangan Kelompok A TK Pembina HKBP Tarutung
Authors: Rohani Purba  , Adiani Hulu  , Julita Herawati P  , Hisardo Sitorus  , Emmi Silvia Herlina  
Published: August 2024

The aim of this research was to determine the effect of the number block game on the ability to recognize number symbols for group A TK Pembina HKBP Tarutung. The method used in this research is a descriptive quantitative research method. The population was all children from group A of the TK Pembina HKBP totaling 25 people and all of them were used as research respondents. Data was collected using positive closed observation items totaling 13 items namely 7 items for variabel X and 6 items variabel Y. The results of data analysis show that there is a positive influence from the number block game on the ability to recognize number symbols for group A TK Pembina HKBP Tarutung: 1) Test the analysis requirements: a) test a positive relationship the value obtained is rxy = 0,564 > rtabel(=0,05,n=25) = 0,396, Thus it is know that there is a positive relationship between variable X and variable Y. b) Test significant relationship value obtained thitung= 3,276 > ttabel(=0,05,dk=n-2=23)= 2,069 thus there is a significant relationship between variable X and variable Y. c) Regression coefficient of determination test (r2) = 31,8%.2) Influence test: Regression equation test, obtained regression equation . Thus Ha that is there is an influence of the number block game on the ability to recognize number symbols for group A TK Pembina HKBP Tarutung is accepted and H0 is rejected.
Analisis Penggunaan Algoritma Pemrograman dan Aplikasi Geogebra dalam Pembelajaran Matematika Geometri
Authors: Muhammad Farhan  , Yahfizham Yahfizham  
Published: August 2024

Mathematics is an important component of education. Geometry is a branch of mathematics that focuses on abstract objects that are often encountered in everyday life. Two-dimensional geometry (flat shapes) and three-dimensional geometry (spatial shapes) discuss abstract forms of real objects. In today's digital era, humans cannot be separated from utilizing technology, including teachers and even the Ministry of National Education continues to support the use of technology in learning. GeoGebra is a very useful math learning tool that allows students to understand abstract math concepts visually and easily understood. This research was conducted to evaluate how the use of programming algorithms and GeoGebra applications can improve the learning of mathematical geometry. This study was conducted to evaluate how the use of programming algorithms and GeoGebra applications can improve geometry math learning. The method used is SLR (Systematic Literature Review). The results of the study are the use of programming algorithms and GeoGebra applications in learning mathematical geometry has a positive impact on the functionality and capabilities of this application in the context of learning geometry.
Peningkatan Penerapan Model Pembelajaran Kooperatif Siswa Dalam Pembelajaran Sosiologi Kelas XI IPS 2 SMAN 9 Maros
Authors: Devia Ananda Umar  , Firdayanti J Umar  , Nurafiqah. M  , Sahriani Haerul  , Andi Paida  
Published: August 2024

The purpose of this study was to determine the learning process of improving the learning outcomes of Sociology students Class XII Social Studies 2 SMAN 9 Maros through cooperative learning and whether there was an improvement after action. At this stage, researchers prepare learning tools which will support the learning processin the classroom. In addition, observation sheets are also prepared processing with cooperative learning models, and observation sheets of teacher and student activities. From the observations made during the learning process at UPT SMAN 9 MAROS by applying the cooperative learning model or cooperative learning provides little change in students for those who follow learning in class, including: Students are motivated to learn,Students have also begun to be skilled in experimenting and practicum can also support the understanding of the subject matter, students are predominantly active in the learning process.
Pentingnya Pendidikan Agama Bagi Anak Berkebutuhan Khusus
Authors: Ardila Pebiani  , Cita Genial  , Jelita Nur  , Kholizah Fitri  , Ratu Azmi  , Siti Hamidah  
Published: August 2024

Spirituality is a need of every individual in the relationship between God Almighty. Talking about spirituality is closely related to religion and divinity. Religion is a very important thing that plays a major role in providing guidance for life and in religion there is also an order to study for each of His servants regardless of the differences in each individual human being. Children with special needs (ABK) are children who have different characteristics from children in general, therefore several factors that have an influence on the spiritual aspects for children with special needs require assistance from parents, teachers, and a supportive environment to provide religious learning values for the spiritual development of children with special needs. This study uses a qualitative method by collecting data from a literature review which is processed into steps to be implemented for the reader. This study aims to provide some methods used as a medium for learning religion to meet the spiritual needs of children with special needs according to the characters they each have. Such as learning religious concepts for visually impaired, deaf, disabled, disabled, and tunalaras children using appropriate media based on their needs. Religious education is an important component for children with special needs to make them perfect humans who coexist with other humans. God created all His creatures perfectly without exception, whether natural or unnatural, all are His very special gifts.