bluuebunny/crossref_metadata_2025 huggingface dataset:
Phân lập và tuyển chọn vi khuẩn nội sinh trong cây bí kỳ nam (Hydnophytum formicarum) có khả năng chống oxy hoá in vitro
Authors: Nguyễn Thị Kim Ngân , Trần Chí Linh , Võ Vy Anh , Tô Hoàng Duy , Võ Hoàng Long , Trần Nguyễn Kim Ngân , Đái Thị Xuân Trang
Published: August 2024

Nghiên cứu được thực hiện nhằm phân lập vi khuẩn nội sinh trong cây bí kỳ nam (Hydnophytum formicarum) có khả năng tạo ra chất chống oxy hoá (hàm lượng flavonoid tổng (TFC), chống oxy hoá tổng (TAC) và khả năng khử sắt (RP)). Ngoài ra, các dòng vi khuẩn có khả năng chống oxy hoá cao được định danh qua việc quan sát hình thái học,16s rRNA. Các mẫu rễ, thân và lá của cây bí kỳ nam ở thành phố Phú Quốc, tỉnh Kiên Giang được dùng làm nguyên liệu để phân lập vi khuẩn. Kết quả cho thấy tổng cộng 25 dòng vi khuẩn nội sinh được phân lập từ các bộ phận khác nhau của cây Bí kỳ nam đều có hoạt tính chống oxy hoá. Trong đó, 3 dòng vi khuẩn HF-L5, HF-T11 và HF-R6 được chọn để tiến hành định danh. Kết quả cho thấy các dòng vi khuẩn này thuộc chi Bacillus (dòng HF-L5 và HF-T11) và Pantoea (dòng HF-R6).
Tổng hợp hệ sol-gel chứa ZnO-gelatin-cao chiết lá cà na (Elaeocarpus hygrophilus Kurz.) ứng dụng tạo màng bề mặt bảo quản cà chua
Authors: Phạm Khánh Nguyên Huân , Võ Thị Thảo Nhi , Hà Thị Kim Quy
Published: August 2024

Sử dụng chất bảo quản có nguồn gốc tự nhiên trong lĩnh vực bảo quản trái cây đang là chủ đề quan tâm của các nhà khoa học. Do đó, hướng nghiên cứu tổng hợp hệ sol-gel chứa ZnO-gelatin-cao chiết lá Cà na (Elaeocarpus hygrophilus Kurz.) ứng dụng tạo màng bề mặt (coating) bảo quản Cà chua được thực hiện. Nghiên cứu cho thấy rằng điều kiện thích hợp để tổng hợp hệ vi hạt chứa ZnO-gelatin-cao chiết trong phối trộn tạo hệ sol-gel nồng độ 0,5% và 1,0% là: khối lượng kẽm acetate 0,3125 g, gelatin 0,1565 g và cao chiết 0,1250 g. Kết hợp nghiên cứu thực nghiệm và dự đoán dựa trên mô hình Bề mặt Đáp ứng (RSM) cho thấy cả 03 yếu tố Kẽm acetate, Gelatin và Cao chiết đều góp phần quan trọng nâng cao hiệu quả tạo thành hệ sol-gel trong bảo quản Cà chua. Kết quả này tạo tiền đề quan trọng cho các nghiên cứu tiếp theo thực hiện khảo sát khả năng bảo quản các loại trái cây khác dựa trên nền hệ vi hạt tiềm năng này và khảo sát hoạt tính sinh học có liên quan.
Một số đặc điểm hình thái và giải phẫu của bốn giống dâu da (Baccaurea ramiflora) phân bố ở huyện Phong Điền, thành phố Cần Thơ
Authors: Nguyễn Thị Mỹ Ngân , Phùng Thị Hằng , Đỗ Tấn Khang , Tô Thiện Kim Ngân
Published: August 2024

Mức độ đa dạng loài của chi Baccaurea thường gây khó khăn cho công tác bảo tồn, chế biến và ứng dụng trong y học. Đề tài được thực hiện nhằm mục tiêu ghi nhận kết quả mô tả, so sánh đặc điểm cấu tạo của lá, hoa và trái ở bốn giống dâu Hạ Châu, dâu Xiêm, dâu Xanh và dâu Vàng được thu tại huyện Phong Điền dựa trên phương pháp phân tích hình thái thực vật. Kết quả mô tả cho thấy hình thái lá của bốn giống dâu da trong nghiên cứu mang đặc điểm chung của chi Baccaurea. Diện tích phiến lá, số gân lá của dâu Hạ Châu và dâu Xiêm có sự tương đồng và đều lớn hơn hai giống dâu còn lại. Màu sắc và hình dạng trái của bốn giống dâu da có sự khác biệt rõ rệt dễ dàng nhận thấy bằng mắt thường. Không tìm thấy sự khác biệt về thành phần và số lượng trong cấu trúc hoa nhưng số lượng hoa trên mỗi phát hoa thì khác nhau. Phân tích cấu trúc giải phẫu cũng thấy có sự đa dạng giữa các giống dâu. Kiểu gốc lá, cấu trúc lông đơn bào có ở dưới phiến và cuống lá là điểm khác biệt dùng để nhận diện dâu Hạ Châu.
Perlindungan Hukum Bagi Pemenang Lelang Eksekusi Hak Tanggungan Yang Tidak Dapat Menguasai Objek Lelang (Studi Kasus Putusan No.3/PDT.G/2018/PN.Lgs)
Authors: Christin Natalia Tambunan  , Atik Winanti
Published: August 2024

Penelitian ini memiliki tujuan untuk memahami cara perlindungan hukum diberikan kepada pemenang lelang ketika objek lelang sulit untuk dikuasai dan untuk mengetahui pertimbangan hakim dalam putusan No.3/Pdt.G/2018/PN.Lgs terkait pengosongan objek lelang. Lelang untuk mengeksekusi hak tanggungan merupakan suatu upaya yang dilakukan oleh kreditur apabila debitur terbukti melakukan cidera janji dan tidak mampu lagi membayar utangnya dengan cara menjual objek yang dijadikan jaminan dan mengambil hasilnya untuk melunasi utang debitur. Tetapi dalam konteks ini, seringkali muncul masalah di mana pemenang lelang menghadapi kesulitan dalam mengambil alih objek lelang yang telah mereka beli melalui proses lelang resmi. Kesulitan ini disebabkan oleh penolakan pemilik jaminan (debitur) untuk menyerahkan objek lelang kepada pemenang lelang. Dengan latar belakang ini, mengenai pengambilalihan barang lelang yang diperoleh pemenang, diperlukan penelitian mengenai perlindungan hukum yang tersedia bagi mereka. Metode yang diterapkan dalam penelitian ini adalah dengan menerapkan metode penelitian hukum normatif, dan memanfaatkan pendekatan studi kasus dan pendekatan peraturan perundang-undangan.. Hasil dari penelitian ini menunjukkan bahwa tindakan perlindungan hukum dalam bentuk represif dapat diberikan kepada pemenang lelang dalam situasi kesulitan menguasai objek lelang, yaitu melalui permohonan eksekusi pengosongan objek lelang kepada pengadilan negeri setempat.
Penerapan Prinsip Good Governance Dalam Pendistribusian Liquefied Petroleum Gas (LPG) Bersubsidi Berdasarkan Keputusan Menteri Energi Dan Sumber Daya Mineral Nomor 37/Mc.01/Mem.M/2023
Authors: Achmad Yusuf  , Moh Saleh
Published: August 2024

Salah satu tujuan Good Governance adalah terciptanya tata kelola pemerintahan yang baik dalam hal pengaplikasian dan pelayanan. Penerapan Prinsip good governance yang baik tentunya akan berdampak baik juga pada kualitas pelayanan publik yang semakin baik yang dapat menekan angka penyimpangan dan pemerintahan semakin peduli terhadap kepentingan masyarakat yang luas. Liquefied Petroleum Gas (LPG) bersubsidi merupakan barang yang disediakan secara khusus untuk lapisan masyrakat tertentu yang penerapannya distribusinya diatur dalam Keputusan menteri Energi dan Sumber Daya Mineral Nomor 37/MC.01/MEM.M/2023. Sinkronisasi Penerapan Good Governance dalam pendistribusian Liquefied Petroleum Gas (LPG) bersubsidi tersebut agar pendistribusian Liquefied Petroleum Gas( LPG) 3kg bersubsidi terkontrol dan tepat sasaran. Berbeda dengan peraturan perundang undangan, Keputusan menteri Energi dan Sumber Daya Mineral Nomor 37/MC.01/MEM.M/2023 merupakan dalam kategori peraturan kebijakan (beleidsregel), yang dimaksud beleidsregel yaitu terletak pada sifatnya yang bukan peraturan perundang-undangan, namun tetap memiliki relevansi hukum.
Development of a group counseling program to improve interpersonal skills with colleagues and managers of psychologically exhausted secondary school teachers
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Oh SeungWook , Yu HyungKeun
Published: August 2024

Objectives In this study, a group counseling program was developed and applied to improve psychologically exhausted secondary teachers' interpersonal skills with colleagues and managers to analyze their effects.
Methods To this end, 310 secondary school teachers nationwide were subjected to a teacher psychological exhaustion test (TBI), and 10 out of 40 people who showed more than a boundary (T≥55) in psychological exhaustion results and sub-areas were selected as experimental groups and control groups.
Results In order to measure interpersonal skills for 20 secondary school teachers who participated in the program, a modified interpersonal skills test was conducted to suit the characteristics of secondary school teachers. The comparison of the effectiveness of changes in the five sub-areas of pre-post interpersonal skills and interpersonal skills of the experimental group and the control group was analyzed by Mixed ANOVA.
Conclusions As a result of the analysis, the interpersonal skills of the experimental group who participated in the group counseling program to improve the interpersonal skills of psychologically exhausted secondary teachers with colleagues and managers were significantly improved. In addition, as a result of reviewing the experience reports of the group members and the observations of the counselor, it was confirmed that this program was positive for improving the interpersonal skills of psychologically exhausted secondary teachers. Therefore, the program developed in this study can be seen as effective in improving the interpersonal skills of psychologically exhausted secondary teachers with colleagues and managers.
The Impact of Internalizing Core Values among Air Force Entry-level Military Officer on Posttraumatic Growth: Moderating Effect of Regulatory Focus
Authors:   Korean Association For Learner-Centered Curriculum And Instruction, Lee Yelim , Cho Gyeongsuk
Published: August 2024

Objectives This study examines the moderating effect of regulatory focus in the relationship between internalization of core values and posttraumatic growth among entry-level Air Force.
Methods For this study, data from 151 entry-level officers working at the Gangwon-do Air Force unit were analyzed. SPSS 22.0 was used for analysis, and frequency analysis, reliability verification(Cronbach'α), and descriptive statistical analysis were conducted. Next, Pearson correlation analysis was performed, and Process Macro No 4 and Bootstrapping were used to test the moderating effect.
Results First, in the relationship between variables, improvement focus showed a positive correlation with internalization of Air Force core values, posttraumatic growth. And prevention focus showed a negative correlation with all variables. Second, as a result of analyzing the moderating effect of the regulatory focus, it was found that both the improvement focus and the prevention focus moderated the relationship between the internalization of the core values and posttraumatic growth of the entry-level Military officer of the Air Force. However, the prevention focus had a significant moderating effect in all areas, but the improvement focus appeared to play a moderating role in areas above 000.
Conclusions The internalization of the core values of the Air Force's entry-level military officer has had a static impact on growth after adversity. In the process, the regulatory focus controlled the effects of these two variables. In other words, the higher the improvement focus, which is the strategy of approaching the goal, the stronger the relationship between the two variables. And the lower the prevention focus, a strategy to avoid unpleasant outcomes, the stronger the relationship between the two variables. These results suggest that even entry-level military officer who have internalized the Air Force's core values have an improvement focus in order to enhance posttraumatic growth.
Virtual Islam: main stages of formation, forms of manifestation and transformation of Muslims’ traditional ways
Authors:   R.G. Kuzeev Institute of Ethnological Research of the Ufa Federal Research Center of the Russian Academy of Sciences, Khabibullina Zilya R.
Published: August 2024

In the modern world, significant changes in the interpretation, perception and practices of Islam occur not only under the influence of various socio-cultural factors, but are also affected by new technologies. One of the key aspects of this change is the virtualisation process of Islam, which is associated with the growing influence of digital technologies and the Internet on spreading religious information and communication of believers. This article examines the phenomenon of the virtualisation of Islam in the context of studying the problems of the interaction between religion and the Internet. The virtualisation of Islam is a process in which digital technologies are used for disseminating religious information, as well as for education and communication among believers. Social networks, online platforms and mobile applications play an increasingly significant role in shaping the religious practices and perception of Islam. The phenomenon of online religion in the post-Soviet space still has not been fully uncovered. Russian scholars define cyber-religion as a “religious innovation”, and some include it in the list of “quasi-religions”, and still consider it not as reality, but rather as something amorphous, applied, while religious movements are successfully exploring the digital environment and using it for their purposes. In the meantime, control over these processes is being lost. Cyberspace transforms Islam in terms of both ideology and discourse. Along with anonymity and accessibility of information, that leads to an increase in the number of different branches of religion which originate and are discussed on the Internet. Researchers are trying to understand exactly what kind of transformations are happening to Islamic media, the religious identity of Muslims and their opinion leaders, as well as to online rituals and the Islamic discourse on social networks.
Assessment of the Quality of the Regional Investment Environment in the Context of Ensuring the Technological Sovereignty of the Economy
Authors: Nevyantseva L. S.
Published: August 2024

The purpose of the article is to develop and test a methodological approach to assessing the effectiveness of the regional investment environment in the context of the intensification of technological development of the country and regions and the achievement of technological sovereignty of the national economy.

The research uses information data related to investment development institutions; materials of regional Development Strategies, regulatory legal acts; information posted on websites and portals dedicated to the investment policy of the regions. The article has been prepared using the following methods of scientific research: analysis, synthesis, induction, deduction, comparison, generalization.

The analysis of scientific sources on the research problem was carried out, on the basis of which the author’s methodological approach to assessing the quality of the regional investment environment in terms of ensuring the technological sovereignty of the economy was developed and tested. In the process of approbation, integral indicators of the quality of the regional investment environment were calculated, as a result of which the level of its quality was identified according to the analyzed methodological blocks. According to the results of the approbation, gaps and shortcomings in the system of the regional investment environment were identified and conclusions about the trends of its development were concluded.

The results obtained indicate the presence of problems and a number of limitations in the formed regional investment environment for regulating innovation, investment and technological development of the economy. The practical significance of the work lies in the proven methodological approach to assessing the quality of the regional investment environment. The results of the work can be applied by the authorities in order to achieve technological independence of the region’s economy.
Sentidos preferenciais e mediações culturais: relevância das instituições família, trabalho e religião na recepção de narrativas jornalísticas
Authors: Winques Kérley , Anderson André Hendryo
Published: August 2024

Fruto de duas teses, o artigo visa compreender a força das instituições família, trabalho e religião na identificação de sentidos preferenciais — enquadramentos que o leitor usa para se vincular a uma mensagem — na recepção de narrativas jornalísticas. De fragmentos biográficos — memórias acionadas durante a aplicação de entrevistas em profundidade — extraídos de uma questão sobre história de vida, coincidente nas duas teses, discute-se a relevância das três instituições no cotidiano de 34 participantes. Os resultados apontam que essas comunidades de referência são identificadas já nas histórias de vida por: a) associação espontânea; b) associação estimulada; c) dissociação espontânea; e d) dissociação estimulada. Mediante tais categorias é possível identificar bases constituintes das mediações culturais, dimensões nas quais os sentidos se originam e se constituem via consumo midiático.
Identifikasi Makroskopis dan Mikroskopis Kayu Medang Sereh Berdasarkan Bagian Batang
Authors: Anggraini Riana , Agustina Ana , Komariah Rahma Nur , Khabibi Jauhar
Published: August 2024

ABSTRACT
Some aspects that can be a reference in identifying lemongrass wood include anatomical structure (macro and micro properties) based on the trunk (base, middle and end). The results of research identifying the anatomical properties of lemongrass wood on various parts of the trunk provide conclusions of anatomical structure for the macroscopic structure characteristics of lemongrass wood in general do not differ between the position of the base, middle and end and the terrace and sapwood, namely giving the heartwood color brown, has a striped pattern, a rather smooth texture, a smooth tactile effect, somewhat shiny, has a smell like lemongrass or telon oil, the hardness is rather hard and heavy. The microscopic structural characteristics of lemongrass medang wood in the position of lemongrass medang logs (base, middle and tip) show that in general wood fibers experience an increase in length from pith to leather. Based on testing the quality of wood fiber for pulp and paper use which includes fiber length, Runkle Ratio, Muhlstep Ratio (MR), Felting Power (FP), Flexibility Ratio (FR) and Coefficient of Rigidity (CR) that lemongrass wood fiber is included in quality class III. Quality class III is a class of wood fiber that has tear firmness, rupture resistance and low tensile firmness.
 
Keywords: macroscopic, microscopic, medang wood, position of the trunk
 
ABSTRAK
Beberapa aspek yang dapat menjadi acuan dalam mengidentifikasi kayu medang sereh ini adalah meliputi struktur anatomi (sifat makro dan mikro) berdasarkan bagian batangnya (pangkal, tengah dan ujung). Hasil penelitian identifikasi sifat anatomi kayu medang sereh pada berbagai bagian batang memberikan kesimpulan struktur anatomi untuk ciri struktur makroskopis kayu medang sereh secara umum tidak berbeda antara posisi pangkal, tengah dan ujung dan bagian teras dan gubalnya yaitu memberikan warna kayu terasnya coklat, mempunyai corak bergaris-garis, tekstur agak halus, kesan raba halus, agak mengkilap, mempunyai bau seperti bau sereh atau minyak telon, kekerasan agak keras dan berat. Â Ciri struktur mikroskopis kayu medang sereh secara pada posisi batang kayu medang sereh (pangkal, tengah dan ujung) menunjukkan bahwa secara umum serat kayu mengalami penambahan panjang dari empulur hingga menuju kulit. Berdasarkan pengujian kualitas serat kayu untuk penggunaan pulp dan kertas yang meliputi panjang serat, Runkle Ratio, Muhlstep Ratio (MR), Felting Power (FP), Flexibility Ratio (FR) dan Coeffisien of Rigidity (CR) bahwa serat kayu medang sereh masuk ke dalam kelas mutu III. Kelas mutu III merupakan kelas serat kayu yang memiliki keteguhan sobek, ketahanan pecah dan keteguhan tarik yang rendah.
 
Kata kunci: medang sereh, posisi batang, makroskopis, mikroskopis
Optimalisasi Pertumbuhan Sengon Solomon (Falcataria Moluccana (Miq.) Barneby & Grimes) Di Lahan Bekas Tambang Batubara Melalui Aplikasi Kompos Solid Decanter
Authors: Hardiyanti Rizky Ayu , Tampubolon Gindo , Sihombing Willy Sahata
Published: August 2024

Sengon solomon (Falcataria moluccana ((Miq.) Barneby & Grime) merupakan salah satu jenis tanaman dengan suku Fabaceae yang memiliki pertumbuhan yang cepat (fast growing). Tanaman sengon mudah beradaptasi terhadap lingkungan dan banyak direkomendasikan sebagai tanaman yang cocok untuk reklamasi tambang terutama tambang batubara. Penambangan batubara dapat menyebabkan lahan terdegredasi sehingga menurunnya sifat fisik, kimia, biologi tanah dan mengakibatkan terganggunya pertumbuhan tanaman. Tanah bekas tambang batubara yang ada di PT. Nan Riang memiliki kandungan C-organik sangat rendah sampai rendah (0,08%- 1,58%). Bahan organik yang rendah perlu dilakukan perbaikan pada media tanam, yaitu dengan cara memberikan bahan organik. Salah satu pembenah tanah yang bisa digunakan dalam memperbaiki tanah yaitu limbah kelapa sawit yaitu Solid Decanter. Tujuan dari penelitian ini yaitu untuk menganalisis keberhasilan revegetasi tanaman sengon Salomo terhadap pemberian Solid Decanter. Penelitian ini dilakukan di Areal konsesi pertambangan batubara PT. Nan Riang yang berlokasi di Desa Ampelu Mudo, Kecamatan Muaro Tembesi, Kabupaten Batanghari, Provinsi Jambi. Penelitian dilakukan selama 4 bulan (Juli-November 2022). Rancangan percobaan menggunakan Rancangan Acak Kelompok (RAK), terdapat 7 perlakuan, dengan ulang 4 kali, sehingga terdapat 28 petak percobaan, setiap petaknya terdapat 4 tanaman sehingga jumlah tanaman sebanyak 112 tanaman. Hasil penelitian menunjukkan bahwa pemberian kompos solid decanter pada tanaman sengon solomo memberikan hasil yang nyata terhadap pertumbuhan tanaman. Pemberian kompos solid decanter 1.5 kg per lubang tanam merupakan pemberian terbaik terhadap pertumbuhan tinggi, diameter, jumlah daun, berat kering tajuk, dan berat kering akar tanaman.
Relato de experiência: vivências do PETI Engenharia de alimentos no projeto de extensão Engenhação
Authors: Oliveira Cristiane Patrícia , Santos Fabiana Nascimento , Soares Janine Lima , Oliveira João Pedro Rocha , Ramos João Vittor Mares , De Souza Rosane Pereira
Published: August 2024

A ação extensionista Engenhação - Engenharia de Alimentos em Ação, é uma atividade que utiliza das habilidades e competências dos alunos e corpo docente do curso de Engenharia de Alimentos a fim de levar a comunidade temas relacionados as áreas da engenharia, ciência e tecnologia de alimentos, pertinentes ao Engenheiro de Alimentos. O presente relato teve por objetivo apresentar as vivências de estudantes do PETI Engenharia de Alimentos e participantes do evento de extensão realizado com crianças e adolescentes pelo Engenhação no ano de 2023. Este foi executado na Universidade Estadual do Sudoeste da Bahia, sendo o público-alvo de suas ações as crianças e adolescentes do ensino fundamental I e II de escolas públicas e outras instituições da cidade de Itapetinga, BA. Para execução deste projeto utilizaram-se como ferramentas metodológicas atividades práticas enfocando como temática o amido desde a sua extração até o processamento com enfoque nas atribuições do curso de Engenharia de Alimentos. Ao final da execução do projeto observou-se que as atividades foram satisfatórias em relação aos conteúdos trabalhados, pois ocorreram inúmeros questionamentos e relatos das crianças, demonstrando, desta forma interesse pelos temas abordados. A atividade mostrou o quão construtivo e produtivo foram estas trocas de experiências entre a comunidade e os petianos, pois eles tiveram a oportunidade de comunicar aos participantes com linguagem simples e clara o que aprenderam em suas vivências como estudantes.  As ações também foram de grande contribuição para os petianos que dele participaram, pois contribuiu para a sua construção profissional.
Impactos e resultados do Programa Nacional de Formação de Professores (PARFOR) na Amazônia amapaense
Authors: Lima Wollacy Esquerdo , Pereira Alexandre Adalberto
Published: August 2024

Neste artigo, analisamos o Programa Nacional de Formação de Professores (PARFOR) como uma política pública de formação de professores e suas implicações no contexto amazônico, em especial na Amazônia amapaense. Nosso objetivo consiste em averiguar como se deu a execução do programa no estado do Amapá no período de 2009 a 2022, e verificar como a Universidade do Estado do Amapá contribuiu para a formação de professores deste estado brasileiro. Para isso, fundamentamo-nos em teóricos que discutem o PARFOR como uma política de formação em larga escala que se desenha conforme a região de seu funcionamento. A investigação foi desenvolvida com abordagem qualitativa, por meio de pesquisa bibliográfica e documental. Entre os resultados, constatamos que o PARFOR tem uma contribuição de cunho quantitativo para a certificação de professores no Amapá, e que a Universidade do Estado do Amapá tem uma contribuição significativa nos dados obtidos.
Temperature Rise of Vehicle Tire at Braking
Authors: Li Yu , Wang Weiji
Published: August 2024

When a vehicle brakes, the heat generated by friction will increase the temperature of the tire tread and cause thermal wear, which will reduce the tread’s thickness or destroy the tread pattern’s integrity, thereby affecting the tire friction performance. While existing research primarily focuses on optimizing braking distance under ideal tire slip ratio (SR) through antilock braking systems (ABSs), little attention is given to whether this could lead to potential adverse consequences of increased tire temperature and thermal wear. Moreover, there is a lack of studies examining tire temperature and thermal wear under nonideal SRs. To address this gap, a MATLAB model is developed to simulate tire dynamics and estimate tread temperature across diverse braking scenarios. Results indicate a strong linear relationship between braking distance and tire temperature under ideal SR across different road conditions. ABS is an effective mechanism for reducing tire thermal wear and preserving tire friction performance. Interestingly, at higher SRs, a particular scenario arises wherein braking distance is elongated while tire temperature remains low. Additionally, the study discusses the influence of air convection cooling on tire temperature fluctuations. This study provides insights into the effects of ABS and SR on tire thermal wear.
A framework for designing problem solving task for secondary school mathematics classroom
Authors: NG Yu Xin , TOH Tin Lam
Published: August 2024

Although problem solving has been playing a critical role in the teaching and learning of mathematics in K-12 in many countries in the world, anecdotal evidence from mathematics classrooms shows that teachers are still facing challenges in designing mathematical tasks on problem solving for classroom instruction. Despite the effort of several existing research studies on enacting problem solving in the mathematics classroom, the guiding principles for designing problem solving tasks remain largely unexplored, thus teachers are left without being empowered to design their own problem solving tasks. The objective of this paper is to provide a comprehensive framework on designing problem solving tasks through a list of interrelated guiding principles. The proposed framework, which we name MIRACLE, foreground seven key considerations which mathematics educators should take into consideration when designing a task for a problem solving lesson: Mathematical content, method of Instruction, Required knowledge, Assessment, Complexity of problem, Learner’s profile, and Enactment of lesson. This paper also provides two exemplars on how the framework could be used to design mathematical tasks for problem solving through problem solving
Development of interactive e-books to increase learning independence in statistics
Authors: Nugroho Aryo Andri , Dwijayanti Ida , Setyawati Rina Dwi
Published: August 2024

The purpose of this research in general is to develop statistics teaching materials in the form of e-modules by applying Microsoft excel in it. The implementation of the use of statistics teaching materials in lectures is still not optimal. This research offers solutions for the use of teaching materials in the form of e-books that are easy to understand in statistics courses to increase student learning independence. This activity emphasizes more on measuring the achievement of e-modules clearly in their application and implementation in learning. This research uses  the Borg & Gall research and development pattern method  with 10 steps. The results showed that the assessment of media aspects in the form of E-books by media expert validators covering general aspects, aspects of material substance, aspects of language feasibility, and aspects of graphic feasibility obtained a percentage of 88.7% were in very good qualifications. Assessment on the material aspect found that the percentage of product feasibility of 95% was in very good qualification. From the assessment of media experts and material experts, the products in this study are feasible or valid to use. In the readability test by students, the average percentage is 80.6%, meaning that it is very easy to understand.
analysis of mathematics textbook of Indonesian curriculum based on functional thinking framework
Authors: Syifa Utami Nadya , Prabawanto Sufyani , Afgani Dahlan Jarnawi
Published: August 2024

Functional thinking (FT) is individual’s cognitive process to identify the relation between variables and is essential for students to learn algebra. However, not much studies addressing the examination of the contents of FT problems within school mathematics textbooks, particularly in Indonesian curriculum. This study aims to describe the mathematics problems presented in junior high school mathematics textbooks of the new Indonesian curriculum (Kurikulum Merdeka) based on the FT framework. To reach this aim, the student mathematics textbook published by The Ministry of Education, Culture, Research, and Technology (Kemdikbud) in 2022 was used to conduct the analysis. The textbooks used were seventh and eighth-grade mathematics textbooks. The data was collected by observing the textbook's contents in the algebra domain. The analysis was based on the framework of FT consisting of recursive patterns, covariance, and correspondence. The results show that the FT tasks appear in the learning of algebraic terms, modelling with algebra, and linear functions. Moreover, this study also found that tasks in each topic develop students’ FT at different stages. Tasks in algebraic terms fulfill all FT’s stages in hierarchical order, tasks in modelling with algebra focus on the correspondence stage, and tasks in linear functions include all FT stages but not in chronological order; that is, recursive patterns, correspondence, and then covariation. In conclusion, this study finds that algebraic problems provided by Indonesian textbooks already support students’ FT. Thus, designing more FT tasks and connecting each task to different algebra topics might help students develop their FT.
Mathematical competencies in the digital era
Authors: Stacey Kaye
Published: August 2024

The paper begins with a discussion of the characteristics of digitization that influence school mathematics, its goals and practices: the digitization of everything, the invisibility of computation, the era of big data and information on everything, and changes in the social role of mathematics due to increased global competitiveness. This leads directly to Theme 1, where we discuss the diminished economic and personal value of the ability to carry out routine mathematical procedures from arithmetic to calculus. Two other themes are then discussed: the reorientation of school mathematics content to support students to solve real world problems, and the need for students to understand about how mathematics can provide insight into real world problems, even when they are not able to actually do this themselves. These themes are only three of the many aspects of mathematical competence in the digital era which might have been chosen for discussion.
Improving the quality of mathematics teacher education: An integrated approach to the 4C skills
Authors: Dahlan Taufiqulloh , Judijanto Loso , Hali Fitriyani
Published: August 2024

With the development of increasingly sophisticated technology, educators must have an appropriate learning model in teaching. On the other hand, a country's obligation is to provide facilities and support teachers in developing their competencies. Currently in Indonesia, there is minimal use of 4C skills teaching. Forms of support should be given to teachers to apply 4C to students in schools. However, the fact is, learning 4C skills is very difficult. Therefore, the purpose of this study is to analyze the obstacles and difficulties in teaching 4C skills. The research method used is qualitative and the data collection method is by interviewing 24 respondents. The data analysis technique is with comparative analysis. The results of the study identified five obstacles, namely lack of competency and motivation support, initial knowledge of 4C, minimal references and political mixtures into the curriculum. Pedagogical competence is also problematic. Conclusion, moral and material support is needed for teachers in preparing, designing materials, implementing, assessing and evaluating 4C learning and schools and the government need to think about the form of routine training for teachers in schools in teaching 4C skills. This study recommends that 4C skills be specifically focused on the education curriculum in Indonesia.
Impact the Labirin: the board game on the student’s numeracy ability
Authors: Putra Deni Dwi , Pamungkas Aan Subhan , Nindiasari Hepsi , Fathurrohman Maman , Porter Anne
Published: August 2024

This research aims to improve the numeracy abilities of secondary students after using the Labirin: the board game and students' perceptions of mathematics learning using the game. This empirical study research used a one-group pretest posttest design. The research population is all grade-8 students in one of the Islamic public secondary schools (MTsN) in Serang City. The sample is 76 students from two classes as the experimental class who implemented the game in learning mathematics. The instruments used to collect the data are the numeracy ability tests and students' perception questionnaires. Before use, both instruments are tested for validity and reliability. The findings showed that the students' numeracy abilities improved after implementing the game and helped students to learn mathematics easily, especially in whole numbers and fractions. In addition, the student's understanding is also achieved. The implementation of the game also showed that this learning media helps students learn in the classroom and interest in using the game. It can be concluded that, the Labirin: the board game improved the student’s numeracy ability.
Perhitungan Nilai Kapasitas Ruas Jalan Sirah Pulau Padang – Pampangan sebagai Acuan Perencanaan Umur Desain Perkerasan Jalan
Authors: Rahmadi Ahmad , Wardono Herry , Despa Dikpride
Published: August 2024

Ruas jalan Sirah Pulau Padang – Pampangan merupakan salah satu ruas jalan yang ada di Kabupaten Ogan Komering Ilir memiliki panjang ruas 19,218 km dengan panjang jalan dalam kondisi rusak ringan dan rusak berat sepanjang 7,42 km. Masih panjangnya kerusakan yang terjadi pada ruas ini tentunya diperlukan perencanaan perhitungan desain perkerasan yang tepat yang mengacu pada manual desain perkerasan (MDP) tahun 2017. Didalam MDP Tahun 2017 dijelaskan bahwa umur perkerasan baik flexible pavement dan rigid pavement masingmasing umur rencana perkerasan ditetapkan 20 tahun dan 40 tahun. Sebagai langkah discounted lifecycle cost dalam perencanaan desain perkerasan pada ruas ini, perhitungan kapasitas jalan perlu dilakukan untuk melihat derajat kejenuhan pada umur rencana 10 tahun yang akan datang. Data yang digunakan pada penelitian ini adalah LHRT2020, data survei hambatan ruas jalan, serta data teknis dan data umum ruas jalan. Hasil dari penelitian ini menunjukkan bahwa nilai frekuensi hambatan jalan yang telah dihitung sebesar 304 yang diklasifikasikan sebagai kelas hambatan jalan tinggi (H), selain itu nilai kapasitas jalan diperoleh sebesar 1796,76 smp, nilai LHRT2030 sebesar 7216,8 smp, dan nilai derajat kejenuhan ruas jalan Sirah Pulau Padang - Pampangan dengan estimasi volume lalulintas pada jam sibuk pada tahun 2030 sebesar 10% diperoleh nilai derajat kejenuhan sebesar 40%, sehingga dapat disimpulkan bahwa umur rencana yang digunakan masih memenuhi ketentuan batas maksimum derajat kejenuhan jalan yaitu dibawah 85% dan dapat digunakan sebagai umur rencana desain perkerasan jalan yang akan direncanakan.
Kajian Program Bantuan Pembangunan Rumah Layak Huni (BAPERLAHU) sebagai Upaya Pengendalian Perumahan dan Permukiman Kumuh di Desa Wiralaga Mulya, Kecamatan Mesuji, Kabupaten Mesuji Tahun 2022
Authors: Murni  , Widyawati Ratna , Purba Aleksander
Published: August 2024

Desa Wiralaga Mulya merupakan pusat kegiatan lokal (PKL) yaitu kawasan perkotaan yang berfungsi untuk melayani kegiatan skala kabupaten atau beberapa kecamatan. Desa Wiralaga Mulya merupakan ibukota Kabupaten Mesuji. Kegiatan ekonomi yang terdapat di Desa Wiralaga adalah kegiatan industri, perikanan dan perkebunan. Berdasarkan Surat Keputusan Bupati Mesuji Nomor B/194/I.02/HK/MSJ/2022 tentang Perubahan Atas Keputusan Bupati Mesuji Nomor B/217/I.02/HK/MSJ/2019 tentang Penetapan Lokasi Perumahan Kumuh dan Permukiman Kumuh di Kabupaten Mesuji, Desa Wiralaga Mulya merupakan salah satu desa yang termasuk dalam kategori perumahan dan permukiman kumuh. Total luasan kumuh di Desa Wiralaga Mulya adalah 3,44 Ha dengan kategori kumuh ringan. Oleh karena itu, Pemerintah Kabupaten Mesuji membuat dan melaksanakan program Bantuan Pembangunan Rumah Layak Huni (BAPERLAHU) bagi masyarakat berpenghasilan rendah sebagai upaya pengendalian perumahan dan permukiman kumuh di Kabupaten Mesuji. Metode penelitian yang digunakan dalam pembuatan jurnal ini adalah metode deskriptif kualitatif menggunakan dua kelompok data yaitu data kualitatif dan data kuantitatif. Data yang digunakan dalam penelitian ini bersumber dari dokumen-dokumen rencana dan strategis sektor perumahan dan kawasan permukiman di Kabupaten Mesuji dan laporan capaian kinerja program BAPERLAHU. Penelitian ini berfokus pada program BAPERLAHU Tahun 2022 yang terdapat di Desa Wiralaga Mulya yang berada di Kecamatan Mesuji. Hasil yang diperoleh dari pelaksanaan program ini adalah berkontribusi pada penurunan tingkat kekumuhan di Desa Wiralaga Mulya, pada aspek bangunan gedung dengan indikator ketidaksesuaian bangunan hunian dengan standar teknis.
Kajian Kebutuhan Luas Lahan Pengembangan Tempat Pemrosesan Akhir (TPA) Sampah Tipe Sanitary Landfill Lubuk Binjai Kota Lubuklinggau
Authors: Ihwan  , Purba Aleksander , Widyawati Ratna
Published: August 2024

Pengelolaan sampah di Tempat Pemrosesan Akhir (TPA), hingga saat ini di Indonesia pada umumnya sudah menerapkan sistem Sanitary landfill untuk penanganan sampah di tingkat akhir. Metode Sanitary Landfill merupakan metode terbaik dibandingkan dengan metode landfill lainnya, terlebih lagi jika dibandingkan dengan Open Dumping dalam hal penanggulangan dampak negatif sampah terhadap lingkungan. TPA Lubuk Binjai Kota Lubuklinggau merupakan TPA yang didesain menggunakan sistem Sanitary Landfill yang sudah beroperasi dari tahun 2016 dan memiliki 1 sel untuk menampung sampah yang masuk ke TPA.
Semakin bertambahnya volume sampah yang masuk ke TPA Lubuk Binjai menyebabkan semakin berkurangnya kapasitas penampungan sampah yang dimiliki. Peningkatan jumlah penduduk dan persentasi cakupan wilayah pelayanan serta masih ada potensi lahan pengembangan juga menjadi alasan diperlukannya penambahan area landfill pada TPA Lubuk Binjai. Oleh karena itu, dibutuhkan adanya sel baru yang bertujuan untuk dapat membantu mempanjang usia operasional TPA dalam menampung volume sampah yang masuk. Setelah melakukan perhitungan timbulan sampah didapatkan proyeksi volume sampah yang masuk ke TPA selama 10 tahun mendatang mencapai 413.727,30 m3, untuk dapat menampung volume sampah yang masuk sampai dengan 10 tahun kedepan dibutuhkan lahan TPA seluas 8,293 Hektar. Luas lahan yang tersedia di lokasi TPA Lubuk Binjai adalah seluas 25,4 ha.
Pelaksanaan Pengawasan Limbah Bahan Berbahaya dan Beracun PT.X oleh Dinas Lingkungan Hidup Kota Bandar Lampung
Authors: Prigato Teja , Purba Aleksander , Widyawati Ratna , Wahyudi Ahmat
Published: August 2024

Limbah B3 (Bahan Berbahaya dan Beracun) adalah zat, energi, dan/atau komponen lain yang karena sifat, konsentrasi, dan/atau jumlahnya, baik secara langsung maupun tidak langsung, dapat mencemarkan dan/atau merusak lingkungan hidup, dan/atau membahayakan lingkungan hidup, kesehatan, serta kelangsungan hidup manusia dan makhluk hidup lain. Klasifikasi limbah B3menurut Peraturan Pemerintah nomor 101 Tahun 2014 tentang Pengelolaan Limbah B3 (Bahan Berbahaya dan Beracun), limbah B3 dapat dibagi menjadi dua yaitu berdasarkan karakteristik dan berdasarkan sumbernya, dimana Limbah B3 kategori karakteristik terdiri dari dampak yang langsung terhadap manusia dan tidak langsung. Kemudian untuk Limbah B3 yang berdasarkan sumbernya terdiri dari sumber tidak spesifik, sumber spesifik dan sumber bahan kimia kadaluarsa. Oleh sebab itu perlu dilakukan pengawasan melekat baik secara langsung maupun tidak langsung oleh Instansi Pengawas Lingkungan Hidup dimana wewenang ini melekat terhadap Dinas Lingkungan Hidup Kota Bandar Lampung terhadap sumber atau penghasil limbah B3 tersebut, untuk mencegah terjadinya pencemaran yang diakibatkan oleh limbah B3 dan juga sebagai alat control kepada perusahaan/industry agar dapat mengelola dan menyimpanya dengan baik sesuai dengan peraturan perundang-undangan yang berlaku.
Analisis Penilaian Kondisi Jembatan Malus II Berdasarkan Metode Bridge Management System (BMS) di Kecamatan Lubuklinggau Utara I
Authors: Zulfi M. Ichfan , Despa Dikpride , Widyawati Ratna
Published: August 2024

Jembatan merupakan sebuah struktur fisik yang menjadi penghubung antara dua tempat yang terpisah oleh aliran sungai, jurang, atau jalan lainnya. Struktur jembatan sering mengalami kerusakan akibat waktu dan penggunaan yang terus-menerus. Oleh karena itu, perlu dilakukan perbaikan pada struktur yang rusak untuk menjaga kekuatan dan kestabilan jembatan. Agar jembatan tidak cepat rusak, maka diperlukan upaya preventif berupa pemeriksaan jembatan. Kegiatan pemeriksaan jembatan dilaksanakan dibawah sistem manajemen jembatan atau Bridge Management System (BMS). Penelitian ini bertujuan untuk mengevaluasi kondisi jembatan dan untuk mendapatkan tindakan perbaikan atau penanganan yang tepat pada jembatan Malus II Kecamatan Lubuklinggau Utara I.
Penelitian ini dilakukan pada jembatan Malus II di Kecamatan Lubuklinggau Utara I Kota Lubuklinggau Sumatera Selatan. Data yang digunakan berupa data primer dan data skunder. Data primer didapatkan melalui survei kondisi jembatan dengan dimensi kerusakan komponen jembatan yang hilang dan foto elemen elemen jembatan, sedangkan data sekunder didapatkan dari Balai Besar Pelaksanaan Jalan Nasional Sumatera Selatan yaitu, SK jalan Kota Lubuklinggau dan peta jalan Kota Lubuklinggau. Dari hasil pemeriksaan dan penilaian menggunakan metode BMS didapatkan nilai kondisi Jembatan Malus II Kecamatan Lubuklinggau Utara I dikategorikan Jembatan/elemen mengalami kerusakan yang memerlukan tindakan secepatnya (nilai = 3) dengan diperlukan usulan penanganan yaitu berupa rehabilitasi jembatan.
Implementasi Dokumen Rencana Pencegahan dan Peningkatan Kualitas Perumahan Kumuh dan Permukiman Kumuh Dalam Pelaksanaan Infrastruktur Permukiman Perkotaan
Authors: Marianza Yuda , Purba Aleksander , Despa Dikpride
Published: August 2024

Kota Lubuklinggau merupakan salah satu kota setingkat kabupaten yang letaknya paling barat dari wilayah Provinsi Sumatera Selatan dan merupakan wilayah pemekaran dari Kabupaten Musi Rawas. Secara geografi, Kota Lubuklinggau memiliki posisi strategis pada jalur transportasi lintas Sumatera. Dengan Luas Wilayah 36.773 Ha serta populasi penduduk sebanyak 240.243 Jiwa dan tingkat kepadatan 598 Jiwa/Km2. Luas Kawasan Kumuh Kota Lubuklinggau Sesuai dengan Surat Keputusan Walikota No 190/KPTS/BAPPEDALIBANG/2019 Tentang Penetapan Lokasi Kawasan Permukiman Kumuh Kota Lubuklinggau adalah sebesar 517,66 Ha, dengan adanya Dokumen Rencana Pencegahan dan Peningkatan Kualitas Perumahan Kumuh dan Permukiman Kumuh (RP2KPKPK) diharapkan dapat terciptanya keterpaduan program dan pembiayaan berbagai pemangku kepentingan sesuai dengan kewenangannya. Selanjutnya Rencana Pencegahan dan Peningkatan Kualitas Perumahan Kumuh dan Permukiman Kumuh (RP2KPKPK) sebagai acuan dalam pencapaian penanganan permukiman yang bebas kumuh.
Paradigma Nilai Pendidikan Karakter dalam Perspektif Al-Qur’an
Authors: Sumatri Titik Sukmiati , Alwizar Alwizar
Published: August 2024

Nilai adalah suatu pola normatif yang menentukan tingkah laku yang diinginkan bagi suatu sistem yang ada kaitannya dengan lingkungan sekitar tanpa membedakan fungsi-fungsi bagian-bagiannya. Nilai lebih mengutamakan berfungsinya pemeliharaan pola sistem sosial. Pendidikan karakter sebagai upaya penanaman kecerdasan dalam berpikir, penghayatan dalam bentuk sikap, dan pengamalan dalam bentuk perilaku yang sesuai dengan dengan nilai-nilai luhur yang menjadi jati dirinya, diwujudkan dalam interaksi dengan Tuhannya, diri sendiri, antarsesama, dan lingkungannya. Secara umum karakter dalam perspektif Al-Qur’an dibagi menjadi dua, yaitu karakter mulia (al-akhlaq al-mahmudah) dan karakter tercela (al-akhlaq al-mazmumah). Karakter mulia harus diterapkan dalam kehidupan setiap Muslim sehari-hari, sedangkan karakter tercela harus dijauhkan dari kehidupan setiap Muslim.
Analisis Model Kecemasan Sosial pada Mahasiswa
Authors: Missasi Vallahatullah
Published: August 2024

Tujuan penelitian ini adalah untuk menguji model teoritis komunikasi interpersonal, pola asuh otoritatif, dan kompetensi budaya terhadap kecemasan sosial. Penelitian ini merupakan penelitian kuantitatif dengan teknik pengambilan sampel menggunakan purposive sampling. Subjek penelitian adalah mahasiswa Papua yang belajar di Yogyakarta dengan jumlah subjek sebanyak 240 orang. Pengumpulan data dalam penelitian ini menggunakan skala kecemasan sosial, komunikasi interpersonal, pola asuh otoritatif dan kompetensi budaya. Uji hipotesis dilakukan dengan teknik analisis Structural Equation Model (SEM) software AMOS versi 26. Berdasarkan hasil analisis data disimpulkan bahwa: (1) terdapat peran yang signifikan antara komunikasi interpersonal, pola asuh otoritatif dan budaya. kompetensi; (2) terdapat peran yang signifikan antara komunikasi interpersonal terhadap kecemasan sosial sebesar β=-0,512 dan p=0,000; (3) terdapat peran yang signifikan antara pola asuh otoritatif terhadap kecemasan sosial anak β=-0,399 dan p=0,000; (4) terdapat peran yang signifikan antara kompetensi budaya dengan kecemasan sosial sebesar β=-0,414 dan p=0,000
Model Deradikalisasi Lembaga Pemasyarakatan (Lapas) Aceh dalam Memberikan Pemahaman Deradikalisasi kepada Narapidana Teroris
Authors: Mupida Siti , Setyo Bono
Published: August 2024

Tulisan ini bertujuan untuk mengeksplorasi dan menjelaskan hubungan balik atau koeksistensi  antara lembaga pemasyarakatan dan pemahaman model deradikalisasi kepada narapidana teroris. Penelitian ini menggunakan metode kualitatif dan literatur review dari berbagai buku dengan menggunakan analisis deskriptif. Penelitian ini dikerjakan dengan berdasarkan pada metode observasi dan wawancara. Peneliti akan terjun langsung ke lapangan untuk mendatangi lapas di Aceh. Argumen tulisan ini adalah bahwa radikalisme ini dapat diartikan sebagai ‘doktrin’ maupun praktik yang diterapkan oleh para penganut paham radikal dan paham ekstrim, sehingga perlu pemahaman deradikalisasi ekstra kepada narapidana teroris. Oleh karena itu, penulis menemukan beberapa medel deradikalisasi kepada narapidana teroris di lapas Aceh. Pertama, dengan Soft Line Approach, yaitu berupa tindakan pencegahan. Kedua, kolaborasi dengan puhak BNPT terkait progran deradikalisasi terhadap napiter. Ketiga, napiter wajib mengikuti program pembinaan yang ada di lapas. Keempat, mendatangkan ustaz dari luar setiap satu kali dalam seminggu untuk memberikan pemahaman agama yang baik dan benar kepada napiter.
Worship Education in the Quran Perspective
Authors: Rahmadani Heni , Thahir Musa
Published: August 2024

Tulisan ini bertujuan untuk mengetahui pendidikan ibadah dalam AlQuran, hakikat pendidikan, hakikat ibadah dan beberapa ayat yang berkaitan dengan pendidikan ibadah. Pendidikan adalah kegiatan mendidik yang dilakukan dengan rencana yang matang, sungguh-sungguh dan terprogram. Ibadah adalah seluruh aktivitas seseorang yang dicintai dan diridhai Allah. Tulisan ini bersifat analisis konseptual, dengan pendekatan kualitatif deskriptif. Dapat diketahui bahwa implikasinya dalam dunia pendidikan adalah pengelolaan dan penyelenggaraan pendidikan harus diarahkan kepada pembentukan kesadaran dan pengakuan akan fungsi manusia sebagai hamba Allah yaitu beribadah. Diharapkan manusia menyadari bahwa Pendidikan merupakan salah satu bentuk ibadah kepada Allah.