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This study provides new insights into the differences of lactate clearance between the active recovery and the passive recovery using CWI techniques. The method used in this research was the pure experimental research (actual experimental design) with a randomized control group pretest-posttest design. The samples were randomly selected and were divided into three groups. Group 1 was the treatment group using an active recovery in cold water at 15 oC for 7.5 minutes. Group 2 was the treatment group using a passive recovery in cold water at 15oC for 7.5 minutes. Group 3 was the control group using a passive recovery. The results of this study showed that both recovery methods, the CWI with active recovery and the CWI with passive recovery, positively affected the elimination of lactate in the athlete body. However, the results showed that the CWI with active recovery tended to have a better effect on reducing lactate levels than passive recovery methods. Based on the research results, there were significant influences of both types of recovery, the active recovery and the passive recovery, and a substantial influence of the cold-water immersion in an active recovery on the lactate clearance. The active recovery reduced blood lactic acid levels more efficiently than the passive recovery. Several factors, such as the water temperature, recovery time, and intensity of previous physical activity, might have influenced the results of this study.

Biomass stands out as a promising availability source of sustainable carbon energy due to its low pollution profile and versatile applications. This study investigates the multistage catalytic gasification (MCG) of coconut shells, employing thermal and catalytic cracking processes in a two-step gasification approach. Local source catalysts, including dolomite, kaolin, and zeolite, were utilized as eco-friendly additives at temperatures ranging from 200 to 300 °C. Zeolite emerged as the most effective catalyst, producing the highest energy content at 6.21 MJ/kg. Conversely, kaolin resulted in higher CO2 emissions. A blend of zeolite and kaolin achieved the highest energy content at 5.43 MJ/kg. However, the combined use of catalysts showed negligible improvements compared to individual catalysts. The study demonstrates that multistage catalytic gasification enhances syngas production and reduces tar content during the gasification of coconut shells. Optimal pyrolysis temperatures were identified within the 500–600 °C range. In conclusion, the introduction of multiple stages in the catalytic cracking process ensures a stable breakdown of hydrocarbon chains, promoting the exposure of gasification products to lighter compounds. Multistage catalytic gasification enhances oxygen supply for oxidation, thereby improving syngas production while mitigating tar and ash content.

Artificial Intelligence is a technology that has rapidly developed in this decade. Its capability to perform tasks previously achievable only by humans has made this technology popular and utilized across various sectors, including vocational education. In vocational education, Artificial Intelligence plays a role in enhancing the efficiency and effectiveness of teaching. One example is the development of adaptive learning programs that can adjust the curriculum according to students' abilities and needs. Additionally, Artificial Intelligence is also used to evaluate student performance and provide automatic feedback. This system can assist in assessing and monitoring student performance, enabling teachers to focus on teaching and student development. This study used the Systematic Literature Review (SLR) method. This method is used to identify, assess, evaluate, and interpret all available research within the field of the relevant phenomenon, guided by specific research questions. By using this method, a systematic review and identification of journals can be conducted, following predefined steps. The data for this study is obtained from relevant journals between the years 2013 to 2021, totaling 15 literature journals from various countries. The primary goal of this research is to provide a deeper understanding of the role of this technology in vocational education and to present a framework that can be used as a guide for the implementation of Artificial Intelligence. It is anticipated that this research will assist educators and decision-makers in effectively utilizing Artificial Intelligence to enhance learning, skills, and vocational student preparation for the continually evolving job market.

Covid-19 berdampak pada beberapa sektor dan salah satunya adalah sektor ekonomi yang berimbas pada pendapatan UMKM. Penggunaan media sosial pada saat ini bisa digunakan untuk proses promosi barang dan jasa. Dengan sosial media UMKM dapat berkomunikasi langsung dengan konsumen. Barang dan jasa yang ada di sosial media juga akan bisa dikenal luas oleh masyarakat. Penggunaan sosial media dalam proses promosi dapat meningkatkan penjualan barang sampai 25%. Hal ini menunjukkan bahwa sosial media mempunyai peran yang penting untuk bisa meningkatkan promosi barang untuk UMKM.

The world's energy consumption shows an increasing trend. Unfortunately, it is still dominated by the use of fossil energy. This condition results in concerns that an energy crisis will occur due to running out of non-renewable energy and an environmental crisis of global warming. One of the technology sectors that consumes a lot of energy is computer servers and data centers. This technology sector is growing rapidly due to the increasingly complex computing and larger data. One of the main causes of inefficiency in this technology is a decrease in performance due to an increase in temperature. Therefore, effective and efficient technology is needed to overcome the increasing operating temperature of computer servers and data centers. One of the most prominent cooling technologies to solve this problem is immersion colling. This method has developed in various types with their respective advantages and disadvantages according to application needs. Therefore, review literature is needed to comprehensively discuss the development of immersion cooling technology from the past until now and projected developments in the future. In more detail, this paper comprehensively compiles the latest findings of immersion cooling technology which includes an overview of the cooling system, history, implementation, construction type, and advantages.

The outbreaks of infectious diseases that spread across countries have generally existed for centuries. An example is the occurrence of the COVID-19 pandemic in 2020, which led to the loss of lives and economic depreciation. One of the essential ways of handling the spread of viruses is the discovery and administration of vaccines. However, the major challenges of vaccination programs are associated with the vaccine cold chain management and cold storage facilities. This paper discusses how vaccine cold chain management and cold storage technology can address the challenges of vaccination programs. Specifically, it examines different systems for preserving vaccines in either liquid or frozen form to help ensure that they are not damaged during distribution from manufacturing facilities. Furthermore, A vaccine is likely to provide very low efficacy when it is not properly stored. According to preliminary studies, the inability to store vaccine properly is partly due to the incompetency of many stakeholders, especially in technical matters. The novelty of this study is to thoroughly explore cold storage technology for a faster and more comprehensive vaccine distribution hence it is expected to be one of the reference and inspiration for stakeholders.

This literature review research aims to conduct a systematic review of the use of the Technology Acceptance Model (TAM) in the context of E-Da’wah. E-Da’wah is a new approach in da'wah that uses information and communication technology as a means to convey religious messages to the community. Information and communication technology has opened up new opportunities to spread da'wah more effectively and widely, but the acceptance and adoption of this technology by the public remains a relevant and interesting issue to be researched. This article will present a summary and analysis of previous studies that have applied the technology acceptance model, namely the Technology Acceptance Model (TAM), in the context of E-Da’wah. This literature review will cover some of the main variables present in the TAM model, such as perceived usefulness (perceived utility) and perceived ease of use (perceived ease of use), as well as other factors that influence the acceptance of technology in the context of E-Da’wah. In addition, this article will also discuss the results of re- cent research that has been conducted to understand user behavior in adopting E-Da’wah technology. The results of this article are expected to provide in-depth insights into the application of technology acceptance models in the E-Da’wah environment, provide a better understanding of the factors that influence the adoption of this technology, and provide direction for future research in optimizing the use of technology information and communication in da'wah efforts.

Vocational students are confronted by intricate demands once they graduate. Despite the considerable need for vocational graduates in the workforce, most students have a limited understanding of digital and vocational information. This study used a descriptive quantitative method to determine the influence of digital and vocational information literacy on students' learning outcomes in three vocational schools in the Sragen Regency. Cluster Random Sampling was used to select a sample of 111 students. Data on digital and vocational information literacy were collected using a questionnaire, while those on the learning outcomes were obtained from the student’s grades. The results showed that digital literacy influences vocational students’ learning outcomes with a significance of 0.000 0.05. Vocational information literacy influences the students’ learning outcomes with a significance of 0.000 0.05. Furthermore, digital and vocational information literacy simultaneously influence the students’ learning outcomes with a significance of 0.000 0.05. These results indicate the necessity to familiarize and increase the students’ literacy skills to improve learning outcomes. The results indicated that digital and vocational literacy partially and collectively influenced learning outcomes by 48.2%. Therefore, classroom instruction needs to be structured around learning models that actively stimulate the development of digital and vocational literacy skills, preparing students for workplace competitions. Consequently, teachers should consistently implement learning strategies that create a meaningful connection between the school environment and the realities of the professional world.

Solar water heaters (SWH) are a low-cost method for generating hot water for various purposes. Therefore, this research focuses on investigating a modified V-corrugated zinc collector combined with an aluminum foil foam insulator and a 5 mm thick plywood base at the bottom. The experiments were conducted under hot climate conditions in the Central Java region of Indonesia. The effect of flow rate, with 120, 180, and 240 Lph, was compared and analyzed using passive and open systems. Data was retrieved at 10-min intervals from 8:00 a.m. to 3:00 p.m. The results showed that the highest energy efficiency of 50% was achieved at a flow rate of 240 Lph, with 40% and 34% energy efficiency at flow rates of 180 Lph and 120 Lph, respectively. Additionally, the highest collector efficiency was 61%. These findings suggested that higher flow rates were more efficient in SWH with V-corrugated zinc collectors. Therefore, it was recommended to use V-corrugated collectors due to their low production cost and ability to produce 50% energy efficiency.

Even though HOTS-based learning has been implemented since 2018, students' readiness has not been tested. This study aims to test the willingness of students to learn based on HOTS in Indonesia. Readiness is reviewed based on the 4C criteria: critical thinking, creative, communicative, and collaborative. This study uses a descriptive quantitative approach. The sample was selected by random cluster sampling of 2.645 Indonesian students. The test method uses a questionnaire and observation. Data were taken by using observation, interview, and questionnaire techniques. The results show that students look active during discussions but still find it challenging to develop their creativity to solve problems. In quizzes, students should start to get used to the thinking process at levels C4 to C6, but students still choose C1 to C3. This study concludes that students are ready for criteria C1 to C3 and unprepared for learning at levels C4 to C6. Students need intense coaching and mentoring to support the successful implementation of HOTS-based learning.

Tujuan dari penelitian ini adalah untuk menjelaskan manajemen pembelajaran online pendidikan jasmani dan olahraga di sebuah SMA di Sumenep selama penerapan kebijakan Belajar dari Rumah selama pandemi COVID 19. Penelitian ini menggunakan metodologi kualitatif, dengan menggunakan guru, siswa, dan orang tua sebagai subjek penelitian yang diambil secara purposive, dengan data diperoleh melalui dokumentasi, wawancara, dan observasi. Temuan menunjukkan bahwa guru sebagai pelaksana proses pembelajaran menyusun rencana pelaksanaan proses pembelajaran yang disesuaikan dengan skenario dan kondisi yang berubah di Sumenep. Namun, keterlibatan orang tua belum mencukupi sebelum, selama, dan setelah pelaksanaan pembelajaran. Pendekatan PEDATI digunakan untuk mengajar pendidikan jasmani dan olahraga di tingkat SMA di Kabupaten Sumenep (Belajar, Mendalam, Menerapkan, dan Mengevaluasi). Penilaian hasil belajar dilakukan dengan evaluasi tugas siswa, yang dapat berupa video atau tugas tertulis.