REDUCING OVERHEAD OF SELF-STABILIZING BYZANTINE AGREEMENT PROTOCOLS FOR BLOCKCHAIN USING HTTP/3 PROTOCOL: A PERSPECTIVE VIEW

Today, there is a tendency to reduce the dependence on local computation in favor of cloud computing. However, this inadvertently increases the reliance upon distributed fault-tolerant systems. In a condition that forced to work together, these systems often need to reach an agreement on some state or task, and possibly even in the presence of some misbehaving Byzantine nodes. Although non-trivial, Byzantine Agreement (BA) protocols now exist that are resilient to these types of faults. However, there is still a risk for inconsistencies in the application state in practice, even if a BA protocol is used. A single transient fault may put a node into an illegal state, creating a need for new self-stabilizing BA protocols to recover from illegal states. As self-stabilization often comes with a cost, primarily in the form of communication overhead, a potential lowering of latency - the cost of each message - could significantly impact how fast the protocol behaves overall. Thereby, there is a need for new network protocols such as QUIC, which, among other things, aims to reduce latency. In this paper, we survey current state-of-the-art agreement protocols. Based on previous work, some researchers try to implement pseudocode like QUIC protocol for Ethereum blockchain to have a secure network, resulting in slightly slower performance than the IP-based blockchain. We focus on consensus in the context of blockchain as it has prompted the development and usage of new open-source BA solutions that are related to proof of stake. We also discuss extensions to some of these protocols, specifically the possibility of achieving self-stabilization and the potential integration of the QUIC protocol, such as PoS and PBFT. Finally, further challenges faced in the field and how they might be overcome are discussed

The preliminary study of carbon x-change rakyat using blockchain application

Today’s air pollution is detrimental to the environment, particularly in Indonesia. Carbon dioxide (CO2) and nitrogen oxide (NOx) are present in the atmosphere due to air pollution. Many individuals employ reforestation to lessen the influence of CO2 and NOx gases on the atmosphere. However, in the digitalized era, lowering carbon emissions may also be accomplished through a carbon credit exchange. Thus, in this study we investigate the performance of the carbon x-change rakyat (CXR) based on blockchain platform utilizing the stress test approach. We provided four scenarios with 10,000 to 100,000 transactions evaluated on the CXR blockchain system i.e., transfer, insert, remove, and update. The outcome demonstrates CXR’s effectiveness with 100% success and 0% failure rate based on testing and statistical computations calculation. The mean absolute error (MAE), variance accounted for (VAF), and percent error (PE) are obtained with values ranging from 0.38% to 4.67%. In this study, the transaction per-second (TPS) is used to calculate include error request (IER) and exclude error request (EER) values around 312 to 746 milliseconds (ms). In addition, the TPS of CXR based on blockchain platform is a capability to create and trace database carbon certificate ownership (nonfinancial activity). It means CXR based on the blockchain platform has a fast response to process carbon certificate ownership for transactions across local and international countries in the world

MEMAHAMI ETNOGRAFI PAPUA MELALUI STRATEGI PEMBELAJARAN TUR STUDI

Penelitian yang mengkaji antara metode pembelajaran tur studi dan etnografi relatif sangat terbatas khususnya dalam konteks Indonesia. Penelitian ini mengkaji pemahaman mahasiswa terhadap etnografi Papua dan tantangan melakukan tur studi etnografi berdasarkan refleksi terhadap model pembelajaran ini. Partisipan dalam penelitian adalah mahasiswa Universitas Yapis Papua, Jayapura, yang berpartisipasi dalam program tur studi ke Museum Lokabudaya, Universitas Cenderawasih. Penelitian mengadopsi penelitian kualitatif dengan metode grounded theory. Data dikumpulkan melalui wawancara dan observasi. Analisis data dilakukan melalui proses pengkodean dengan pendekatan induktif dan dengan bantuan software NVivo (12). Hasil dari analisis data membentuk beberapa kategori di antaranya budaya dan konteks (pemahaman budaya lokal), eksplorasi budaya dan keterhubungan, serta melihat budaya dalam perspektif berbeda. Hasil penelitian juga memberi gambaran tantangan tur studi berdasarkan refleksi partisipan. Kesimpulan, partisipan menunjukkan transformasi pemahaman budaya dan nilai-nilai yang lebih luas dengan tidak hanya berfokus pada budaya dan suku yang ditampilkan di museum, tetapi juga menghubungkan dengan budaya yang dibawa dan melekat pada diri partisipan. Meskipun demikian, fungsi kontrol dalam tur studi merupakan kelemahan terbesar dan dapat memberi pengaruh terhadap hasil dan tujuan pembelajaran

OPTIMALISASI ADMINISTRASI UNTUK KEBERLANJUTAN ORGANISASI PENDIDIKAN ISLAM PADA MADRASAH ISLAMIYAH KHULAFAURROSYIDIN, KABUPATEN JOMBANG

Perkembangan teknologi informasi dan komunikasi yang pesat di Indonesia memberikan tantangan baru dalam membangun branding instansi. Bidang pendidikan merupakan salah satu bidang yang perlu melakukan rebranding agar jasa yang ditawarkan semakin diterima oleh banyak konsumen. Rebranding tata kelola organisasi terkait perencanaan, implementasi program baru, serta evaluasi dapat menjadi langkah strategis untuk memperbaiki kinerja dan mencapai tujuan yang lebih baik. Dalam konteks ini, rebranding tata kelola organisasi berfokus pada perubahan dalam sistem dan proses yang terkait dengan perencanaan, implementasi program baru, serta evaluasi kinerja organisasi. Pengabdian masyarakat ini dilakukan pada Yayasan MI Khulafaurrosyidin, Kabupaten Jombang dalam rangka optimalisasi administrasi untuk keberlanjutan organisasi. Tujuan pengabdian masyarakat ini adalah untuk memecahkan masalah yang ada pada MI Khulafaurrosyidin terkait dengan tata kelola administrasi, keuangan, legalitas, dan branding untuk menambah jumlah murid. Jenis penelitian yang digunakan dalam penelitian ini adalah deskriptif dengan pendekatan kualitatif. Fokus penelitian ini adalah membenahi aspek tata kelola terhadap administrasi, keuangan, legalitas, dan branding organisasi. Hasil pengabdian masyarakat ini menyajikan pendekatan holistik dalam meningkatkan keberlanjutan MI. Dengan meningkatkan tata kelola administrasi, keuangan, legalitas, dan branding, MI dapat mencapai efisiensi operasional, keuangan yang berkelanjutan, kepatuhan hukum, dan daya tarik sebagai lembaga pendidikan Islam. Upaya ini bukan hanya menciptakan fondasi yang kuat bagi MI saat ini, tetapi juga menetapkan dasar yang kokoh untuk keberlanjutan dan pertumbuhan berkelanjutan di masa mendatang

Evaluation of Ricinus communis as a phytoremediator of manganese in soil contaminated with sewage sludge

The cost to dispose of sludge is very high, and Malaysia usually treats it by composting. However, composting is not a feasible method because it is time consuming. The application of sewage sludge on cropland is economical method because it provides the plant nutrients. However, it has a serious impact on the plants, animal and environment due to high concentration of heavy metals. Therefore, phytoremediation is a green technology to remove pollutants especially heavy metals from contaminated soil. This study was conducted to determine the potential of Ricinus communis to remove heavy metal in soil. The seedlings were planted on six different planting media T0 (100% soil-Control), T2 (80% soil + 20% sewage sludge), T3 (60% soil + 40 % sewage sludge), T4 (40% soil + 60% sewage sludge), T5 (20% soil + 80% sewage sludge) and T6 (100% sewage sludge). The highest accumulation of Mn was observed in leaves. Ricinus communis were found to be suitable as phytoremediators to clean heavy metals especially Mn as its TF value was higher than BCF

Tren Perkembangan Open Access Institutional Repository pada Perguruan Tinggi di Indonesia

Open Access (OA) atau akses terbuka dapat menjadi jalan alternatif dalam menyebarkan informasi ilmiah kepada seluruh dunia tanpa dibatasi ruang dan waktu. Repositori institusi atau instutional repository (IR) telah banyak diaplikasikan pada beberapa perguruan tinggi di Indonesia. Tulisan ini mendeskripsikan pemetaan perkembangan repositori institusi perguruan tinggi di Indonesia yang open akses dan perangkat lunak yang digunakannya pada portal OpenDOAR. Penelitian ini terbatas pada repositori institusi perguruan tinggi yang telah terdaftar di OpenDoar saja. Hasil penelitian menunjukkan bahwa terdapat peningkatan jumlah perkembangan repositori di Indonesia pada OpenDOAR mulai dari tahun 2008 hingga 2018 ini. Sementara perangkat lunak yang digunakan ialah Eprints, Dspace, dan lainnya. ABSTRACT  Open Access (OA) can be an alternative way of disseminating scientific information to the globe without limited by space and time. Institutional repositories (IR) have been widely applied to several universities in Indonesia. This paper describes the mapping of the development of open access institutional universities in Indonesia and the software used from the OpenDOAR website. This research is limited to the repository of tertiary institutions that have been registered in OpenDoar only. The results showed that there was an increase in the number of repository developments in Indonesia in OpenDOAR starting from 2008 to 2018. While the software used is Eprints, Dspace, and others

The fertility status of soils at rehabilitated degraded land in Universiti Putra Malaysia planted with pinus caribaea and Swietenia macrophylla

Soil fertility (both physical and chemical) is one of the important factors limiting plant growth. So, the fertility of the soils should be determined before growing crops and after the establishment of forest rehabilitation. A study was conducted to determine the fertility status of soils at rehabilitated degraded land in Universiti Putra Malaysia. The main objective was to compare the fertility of soils planted forest and pasture. Three sites studied were pines plantation (Pinus caribaea), mahogany plantation (Swietenia macrophylla) and pasture area. At each site, three squares of 20×20 m were selected and two depths of soil sample were collected, topsoil (0-20 cm) and subsoil (20-40 cm), from six points within the squares. The physical properties of the soils analyzed were bulk density, soil texture and moisture content, while the chemical properties were pH, total C and N, cation exchangeable capacity and exchangeable cations (Al, Ca, Mg, K and Na). The mean annual increment of height, diameter and volume of planted forest were also taken. The increment of height, diameter at breast height and volume of P. caribaea and S. macrophylla did not show any comparative difference for the cause of the similarity in the increment of patterns catalysed at the same location and climatic condition. P. caribaea showed higher SFI value compared to the other study plots, especially for the topsoil. In contrast, pasture plot had higher SEF, followed by P. caribaea and S. macrophylla plantation plots. P. caribaea showed the highest SFI value, while pasture plot had highest SEF, followed by P. caribaea and S. macrophylla plantation plots. Further study on bigger forest plantation having different types of plant species and land topography needs to be conducted to allow individuals and bodies in the field of forest plantation to gain the opportunity and implement the right approaches to establish forest plantation with good planting establishment practices

Potentiality of melastoma malabathricum as phytoremediators of soil with sewage sludge

Heavy metal pollution of the soil environment has become a major source of concern and continues to pose serious health problems to both humans and ecological systems worldwide. Phytoremediation is a biological treatment whereby plants are used to remove pollutant from the environment. An experiment was conducted to evaluate the potential of Melastoma malabathricum as a phytoremediator to absorb heavy metals from soil contaminated with sewage sludge. Melastoma malabathricum seedlings were planted on six different growth media: T₀ - Control (100 % soil), T₁ (80 % soil + 20 % sewage sludge), T₂ (60 % soil + 40 % sewage sludge), T₃ (40 % soil + 60 % sewage sludge), T₄ (20 % soil + 80 % sewage sludge) and T₅ (100 % sludge). There were differences found in both growth parameters and plant biomass. The highest growth performance such as plant height and number of leaves was found in T₃. Iron was highly accumulated in the roots, Cu in the stems in T₃, while Pb was accumulated in leaves in T₅. The results showed the lowest Translocation Factor (TF) and highest Bioconcentration Factor (BCF) values in relation to the following elements: Cu, Fe, Mn, Pb and Zn. Melastoma malabathricum roots are able to uptake and translocate the elements into the plant's shoots. Therefore, it can be considered a good accumulator plant due to its capability of concentrating contaminants in aerial tissue. Melastoma malabathricum were thus found to be suitable for absorbing heavy metals in contaminated soils, and this species can also be considered an effective phtyoremediator of contaminated soil and mitigator of soil pollution

Potentiality of Melastoma malabathricum as Phytoremediators of soil contaminated with sewage sludge

Heavy metal pollution of the soil environment has become a major source of concern and continues to pose serious health problems to both humans and ecological systems worldwide. Phytoremediation is a biological treatment whereby plants are used to remove pollutant from the environment. An experiment was conducted to evaluate the potential of Melastoma malabathricum as a phytoremediator to absorb heavy metals from soil contaminated with sewage sludge. Melastoma malabathricum seedlings were planted on six different growth media: T0 - Control (100 % soil), T1 (80 % soil + 20 % sewage sludge), T2 (60 % soil + 40 % sewage sludge), T3 (40 % soil + 60 % sewage sludge), T4 (20 % soil + 80 % sewage sludge) and T5 (100 % sludge). There were differences found in both growth parameters and plant biomass. The highest growth performance such as plant height and number of leaves was found in T3. Iron was highly accumulated in the roots, Cu in the stems in T3, while Pb was accumulated in leaves in T5. The results showed the lowest Translocation Factor (TF) and highest Bioconcentration Factor (BCF) values in relation to the following elements: Cu, Fe, Mn, Pb and Zn. Melastoma malabathricum roots are able to uptake and translocate the elements into the plant's shoots. Therefore, it can be considered a good accumulator plant due to its capability of concentrating contaminants in aerial tissue. Melastoma malabathricum were thus found to be suitable for absorbing heavy metals in contaminated soils, and this species can also be considered an effective phtyoremediator of contaminated soil and mitigator of soil pollution