Utilization of Tephrosia vogelii in post-mining land reclamation

Reclamation is an effort to repair the damaged mining sector to provide optimal benefits. This review article aims to propose a natural product technology approach to the reclamation of post-coal mining land by increasing the content of soil organic matter so that the post-mining land becomes fertile and can be used for agricultural land. The method used is an observation and literature study. Literature searches were using them ScienceDirect, Scopus, PubMed, and Google Scholar databases. Land-use change of post-mining site to agricultural land provides prospective economic value to the community. However, the land quality of the post-mining area should be improved before food crop production. Tephrosia vogelii is a member of the Papilionoideae subfamily is important for land revegetation. They can fertilize the soil because of mutualistic symbiosis with the bacteria Rhizobium sp. which is capable to fix nitrogen in the soil and hence provide available nitrogen. Thus, the use of post-mining land as agriculture can improve the economy and sustainability as well as protect life and the environment with natural product technology.

Study on coal to methanol of Arutmin coal

The Indonesian government has encouraged coal mining companies to expand into coal downstream industries. In response to this policy, PT. Arutmin Indonesia has conducted a pre-feasibility study on the construction of a coal-to-methanol plant. The plant was located in the Pulau Laut Utara Coal Terminal (NPLCT). The plant is designed to produce 3.0 million tons of methanol/year. The raw material is supplied from the Sarongga coal mine, about 5 km away from NPLCT. The coal-to-methanol process was simulated using ChemCad to solve chemical and energy problems. Based on heat & material balance simulation results, the plant requires coal of 6.0 million tons/year as a raw material. Air Product technology was chosen for coal gasification and Davy Technology for methanol synthesis. Air product gasifier requires lower oxygen to produce syngas than other technologies, thereby reducing oxygen production costs. The plant needs an investment cost of USD 3.0 billion. With the assumption of a methanol price of 311 USD/ton and 20 years of tax holiday incentives, the financial analysis results show that the construction of coal-to-methanol plant is financially feasible with an NPV value of 289.7 million USD and an IRR of 13.35%.

Hubungan Kontrol Diri dengan Kecemasan pada Mahasiswa Tingkat Akhir dalam Menyelesaikan Skripsi

Penelitian ini bertujuan untuk mengetahui hubungan kontrol diri dengan kecemasan pada mahasiswa tingkat akhir dalam menyelesaikan skripsi. Penelitian ini menggunakan pendekatan kuantitatif. Subjek penelitian ini adalah 64 mahasiswa Prodi Tekonologi Hasil Pertanian (THP) Universitas Mulawarman Samarinda yang dipilih dengan menggunakan teknik sampling jenuh. Metode pengumpulan data yang digunakan adalah observasi, wawancara dan penyebaran skala kontrol diri dan kecemasan. Teknik analisa data menggunakan uji analisis korelasi product moment pearson. Dari hasil analisis korelasi product moment terdapat hubungan positif antara kecerdasan emosi dengan pengambilan keputusan, dengan nilai korelasi sebesar 0.761 dan nilai Sig sebesar 0.000 (p < 0.05). Terdapat hubungan yang kuat antara kontrol diri dengan kecemasan. Artinya, semakin rendah kontrol diri mahasiswa maka akan semakin tinggi tingkat kecemasan mahasiswa. This study discusses understanding of the relationship of control with students at the final level of completing a thesis. This research uses quantitative. The subjects of this study were 64 students of the Agricultural Product Technology Study Program (THP) Mulawarman University Samarinda selected using saturated sampling techniques. Data collection methods used were observation, interviews, and self control control scale. Data analysis techniques used Pearson product moment correction analysis test. From the results of the analysis, the product moment is between positive with intelligence and decision making, with a consideration value of 0.761 and a Sig value of 0,000 (p <0.05). There is a strong relationship between self-control and comfort. Successful, the lower the student's self control, the higher the level of student comfort).

Foundations of a Relativity Marketing Theory

This research aims to open the way to review of the philosophical postulates and ideological pathways that govern the contributions in marketing theory, to reflect the scientific marketing truth. We do not mean by this to trace the history of marketing thought, but rather, a re-investigation of the logic of its existence and being. It is an attempt to re-explore and depart from the axioms that ruled marketing thought. Marketing theory emerged from being a scientific theory that can be true or false, to be an "ideology” defended by its supporters. From this point; this research set the foundation for developing a new general marketing theory based on the relativity concept, has the ability and adaptation to exceed the boundaries of “product, technology, time, place, context and customer”, acquires its being and existence from the verification of the current philosophy of marketing science, and considering the marketing experience

CHARACTERISTICS OF THE YOGURT BEING INCUBATED IN GREEN COCONUT SHELL (Cocos nucifera L. var. viridis Hassk)

The study aims to identify characteristics of the yogurt being incubated in green coconut shell (Cocos nucifera L. var. viridis Hassk). It was conducted in March 2020 at the Laboratory of Animal Product Technology and Mic- robiology Faculty of Animal Science, Udayana University. This studies used a Complete Random Design (CDR) with three treatments and five replications. The three treatments were incubated in a jar container (control) (P0), incubated in green coconut shell nonflesh (P1) and incubated in green coconut shell with flesh (P2). The variables observed were lactoce level, fat level, protein level and pH value. The results of this study have shown that yogurt’s characteristic indicated lactose and protein levels was not significantly different (P>0,05) in all treatments, but P2 fat levels was higher significantly (P<0,05) different than P1 and P0. pH values was not significantly different (P>0,05) with P1 and significantly different (P<0,05) with P0. Conclusing in this study that the characteristics of yogurt incubated in green coconut shell getting good results at lactose level 2,32,42%; fat level 10,60-12,50%; pro- tein level 4,80-4,90%; and value pH 4,14-4,24%.

Fundamentals of biochemistry

The textbook contains basic information about the structure, properties and biological functions of proteins, nucleic acids, carbohydrates, lipids, vitamins. The most important ways of transformation of substances and energy in a living organism are considered. The information about the use of biochemical processes in the food industry is given. Meets the requirements of the federal state educational standards of higher education of the latest generation. For university students studying in the areas of training 19.03.01 "Biotechnology", 19.03.02 "Food products from plant raw materials", 19.03.04 "Product technology and catering organization", as well as for students studying in other areas of training, and graduate students.

Community empowerment through the processing of crispy catfish in Padukuhan XII Sidorejo, Bantul

Padukuhan XII Sidorejo, located in Kasihan District, Bantul Regency, was one of the areas that was cultivating a lot of fish and vegetables in buckets or budikdamber during the Covid-19 pandemic. One of the vegetables cultivated is kale and can meet daily household needs. While the type of fish that is widely cultivated with budikdamber is catfish. Cultivation of catfish and vegetables is expected to meet household needs, but consumption of catfish from this cultivation is less than optimal due to low knowledge about diversification of processed catfish. These potentials and problems in the community were further explored by the UPY Agricultural Product Technology Bachelor Program lecturer team through community service programs to provide basic knowledge about processed catfish production. This crispy catfish can be a variation of the daily food menu and/or creative business ideas in the food sector for the residents of Pedukuhan XII Sidorejo, Bantul.

Application of linguistic/non-numeric fuzzy aggregation to the ranking of processed crops

A non-numeric fuzzy aggregation approach is applied for the fusion of information obtained from farmers and experts for evaluation and selection of alternatives under multiple criteria. The technique has the ability to assign linguistic variable to fused information and find consensus of gathered opinions from a number of experts on crop processing for each processed crop. The technique is illustrated with a crop processing problem by adding value to the crop and increase income to entrepreneurs. The proposed technique has been successfully applied to the ranking of the processed crops based on the expert’s opinions, thus obtaining best preferences based on product, technology, marketing, and customer satisfaction. Five crops, namely beans, maize, rosella, sunflower and rice were ranked. Out of the five ranked crops, two processed crops (maize and sunflower) obtained high ranking. Keywords: Linguistic variables, Fuzzy aggregation, Processed crops, Decision making