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Many Indonesian spelling errors occur in research papers published to the public, closely related to academics in all institutions such as research institutions, government, schools, and universities. The spelling errors usually writing punctuation, writing letters, writing words, writing words originating from foreign or regional languages (uptake words), using affixed words, and writing ineffective sentences. The mistakes made by the academics then become a cycle in the academic environment. They usually provide guidance for writing an undergraduate thesis, thesis, dissertations to students, or the other forms of documents and scientific papers. Therefore, the research proposed the application to facilitate all authors of scientific papers in producing quality scientific works based on the General Guidelines for Indonesian Spelling published by the Agency for Development and Language Development. The application is named KEBI 1.0 Checker (Indonesian Spelling Error 1.0 Checker), a web-based application with a built-in algorithm to detect and correct Indonesian Spelling in scientific papers. The experiment result shows that the application has given the best accuracy performance to correct the non-standard words, and typographical errors reached 100% and 55,52%, respectively. The application also has been detected 209 meaningless words. The application processing time is relatively low, the average time needed to correct non-standard words is 0.016 seconds, and typo words are 14.58 seconds. KEBI 1.0 Checker is helpful for the end-user in academics but needs to improve the vocabulary of the large corpus in various fields of science for correcting typo words.

Commercial Paper (CP) is one of the types of securities that can be used as a source of corporate financing, in addition Other financing sources. CP issuance process and trade refers to the Decision of the Board of Directors of Bank Indonesia Number 28/32 / KEP / DIR and Bank Indonesia Circular Letter No.28 / 49 / UPG Parties involved in the issuance of CP include banks, both as a regulator of publishing, publishing agents and agents pembayan provisions of this circular letter was not in line with the provisions of Commercial code about the same thing, which considers all the signatures contained in securities is a debtor, and therefore partly responsible for the payment of the securities in question. Keywords: Commercial Paper, Bank Responsibility, Corporate Funding word

This paper presents a low-cost and disposable paper based microfluidic analysis system for point-of-care diagnostics. Detection is achieved by using a colorimetric or visual indicator. Immobilized specific reagent or enzymes designed for the parameter under consideration act as capture molecules on the surface of the detection zone. The sensor is integrated into a microfluidic system made of paper (cellulose). An additional component of the analysis system is a capillary unit which is used to introduce the analyte to the detection zone. For this purpose well- defined, millimeter-sized channel, comprising hydrophobic polymer bounded onto hydrophilic paper was created. Then the detection zone was coated with a sensitive reagent layer as a sensor region. The paper based microfluidics also called lab on paper, has been fabricated using screen printing technology as the basis for low-cost, disposable, portable and technically simple fabrication for mass production. Microfluidics in paper make it feasible to run single, dual or even multiple clinical analyses on one strip of paper while still using only small volumes of a single sample. The capability of lab on paper for detection of importance clinical analyte protein in urine, saliva and blood samples has been demonstrate successfully. Lab on paper as a diagnostic system is small, disposable, and easy to use and requires no external equipment, reagents, or power sources. This kind of diagnostic system is attractive for use in developing countries, in the field, or as a low-cost alternative to more-advanced technologies already used in clinical diagnostics. Keywords: Lab-on-a-paper, Point-of-care, Visual detection, Clinical diagnostic, Disposable sensor

Rabies is a zoonotic disease. Rabies protection level detection was performed using antibody titration. Blood sampling activities in the field require special handling to avoid blood lysis, the sample delivery requires a cold chain with a stable temperature. Alternative method forwhole blood sample delivery using filter paper were carried out on 48 samples from susceptible animals (dogs and cats) transpored through the Soekarno Hatta Agricultural Quarantine Center. This study was designed to investigate the feasibility of filter paper sampling of blood at temperature of 26 °C to detect of rabies antibodies using indirect method of ELISA. The results of statistical analysis of Randomized Block Design and Tukey's test showed that the antibody titres of whole blood extracted from filter paper diluted in the PBS T 100 μl were equivalent to antibody titres of serum. Assesment of filter paper capability has sensitivity and specificity as much as 96% and 76%, positive predictive value of 67%, negative predictive value of 94% and reliability level of filter paper were 0.5 is moderate category. This indicates that the filter paper can be used as an alternative method of blood transport medium for rabies ELISA test.

Sebuah karya tulis ilmiah yang berisi karya inovatif dalam proses pembelajaran sangat diperlukan oleh guru-guru sebagai syarat kenaikan pangkat dalam pengembangan profesi mereka, termasuk guru-guru SMA/sederajat di Kabupaten Bintan. Namun, pada umumnya mereka mengalami kendala dalam membuat karya tulis ilmiah disebabkan kesulitan dalam mencari sumber referensi yang relevan dengan topik penelitian, keterbatasan pengetahuan dalam TIK, dan kesulitan dalam mengolah kalimat agar tidak terdeteksi sebagai kegiatan plagiasi. Tujuan kegiatan ini agar para guru SMA/sederajat di Kabupaten Bintan dapat membuat karya tulis ilmiah yang sesuai kaedah penulisan yang baik dan bebas plagiasi dengan bantuan manajemen referensi Mendeley. Pelaksanaan kegiatan ini dalam bentuk workshop/pelatihan dengan metode ceramah, diskusi, tanya jawab, dan projek. Kegiatan dilakukan selama dua hari dalam bentuk workshop dan dua hari dalam bentuk tugas mandiri. Kegiatan pengabdian kepada masyarakat ini dianggap berhasil karena sebesar 80% peserta mengalami peningkatan pengetahuan tentang manajemen referensi Mendeley dan mampu mengaplikasikannya ke dalam bentuk karya tulis ilmiah yang bebas plagiasiKata Kunci: GMP; Terasi Tutok, Standarisasi; Kuala Pusing Kapal.Development of Mendeley Reference Assisted Scientific Writing Ability Management for High Schools Teachers in BintanAbstractA scientific paper containing innovative work in the learning process is very much needed by teachers as a condition of promotion in their professional development, including high school / equivalent teachers in the Bintan Regency. However, in general, they experience difficulties in making scientific papers due to difficulties in finding reference sources that are relevant to the research topic, limited knowledge in ICT, and difficulty in processing sentences so as not to be detected as plagiarism activities. The purpose of this activity is for high school / equivalent teachers in Bintan Regency to be able to make scientific papers in accordance with good writing methods and to be free of plagiarism with the help of Mendeley's reference management. The implementation of this activity is in the form of workshops/training using lecture, discussion, question and answer, and project methods. The activity was carried out for two days in the form of a workshop and two days in the form of an independent assignment. This community service activity was considered successful because 80% of the participants experienced an increase in knowledge about Mendeley's reference management and were able to apply it in the form of plagiarism-free scientific papers.

Organic waste has high COD and BOD content, so it is dangerous if disposed of directly into the environment. Organic waste processing, such as waste from livestock manure and liquid tofu waste, requires a process that can reduce COD and BOD levels as well as produce valuable products. Anaerobic digestion method is the proper process to convert complex compounds in waste into simpler compounds with methanogenic bacteria into a renewable energy product, namely biogas. On the other hand, the anaerobic digestion process can reduce COD and BOD levels in the biogas formation process. This study uses raw materials such as cow manure and chicken manure, and liquid tofu waste. The variables that produced the largest biogas were those with a ratio of 70% cow dung, 15% chicken manure, and 15% tofu liquid waste with a total of 3,251.5 mL. Then, the COD and BOD levels decreased significantly with more than 98% COD removal, and more than 95% BOD removal in all variables at the end of the anaerobic digestion process.

Indonesia is a large rice producing country where from these activities it produces waste in the form of rice husk. Rice husk cannot be degraded by itself due to the lignin content contained in the rice husk. Therefore, treatment is carried out to destroy the lignin content and use it as alternative energy in the form of biogas. The study was conducted at a laboratory scale at room temperature, preliminary treatment using 3% NaOH under the SSAD conditions of 27.5% TS and then biogas production was measured once every two days for 90 days. Furthermore, the results of biogas production were observed between biogas with NaOH and without NaOH and carried out a study of the kinetics. The result is that biogas production with NaOH is higher, reaching 59.2 mL/grTS whereas without NaOH at 14.7 mL/grTS. The results of kinetic studies using mathematical modeling through the Gompertz equation, the variable with NaOH is known to have a maximum biogas production of 63.9 mL/grTS, a daily biogas production rate of 0.97 mL/grTS.day and the initial formation of biogas significantly on the 8th day.

This study aims to determine the ability of compilation of bentonite and activated carbon made from coal as adsorbents for adsorption of the parameters of the rubber industry wastewater. The test results found that the levels of BOD (Biochemical Oxygen Demand) 805 ppm, COD (Chemical Oxygen Demand) 1415 ppm, Ammonia 12.5 ppm, TSS 340 ppm, pH 6.6. The process of activation of bentonite using HCL 0.1 M. then stirred for 1 hour at a speed of 200rpm then filtered the resulting residue is heated to a temperature of 110oC for 3 hours. Activation of activated carbon is carried out using 0.2 M H3PO4 and then soaked for 24 hours, then washed with distilled water until the pH approaches neutral, dried in an oven at 150oC. The best contact time for bentonite and activated carbon compilation from coal is 0.1 gram (1: 1). With 250 ml of rubber industry, liquid waste is 60 minutes with a BOD absorption efficiency of 99.75% and COD of 98.72%. The best compilation of bentonite and activated carbon from coal in the adsorption of BOD & COD is in the compilation ratio (1: 1) with an efficiency of 99.75% BOD absorption and 98.72% COD.

Fossil fuels are a non-renewable energy source and their existence will be depleted. An alternative is needed that can reduce fossil fuels by using biomass. Biomass waste in the form of bagasse and coconut shell can be used as an alternative fuel in the form of biobriquette. This study aims to analyze the quality value of briquettes from the proximate test of the composition of bagasse and coconut shell produced with briquette quality standards that refer to SNI 01-6235-2000 about wood charcoal briquettes. The variables in this study consisted of five variables. The variables in this study were mass ratio coconut shells to bagasse were 90%: 10%, 80%: 20%, 70%; 30%, 60%: 40% and 50%: 50% respectively. The results of the test of water content, ash content, and volatile matter of the best quality briquettes of five variables were 90% coconut shell and 10% bagasse.

Bioethanol is ethanol derived from plants that contain cellulose such as cassava, corn and sugar cane. The use of bioethanol aims to overcome the scarcity of fuel and reduce the use of fossil oil ingredients in Indonesia. The introduction of alternative energy is optimized by mixing fossil fuels with bioethanol. Therefore, the use of bioethanol as a renewable fuel is very good if because pure bioethanol has a high octane value of 118. Besides, bioethanol is also able to reduce the amount of carbon monoxide (CO) emissions, decrease Nitrogen Oxide (NOx) and hydrocarbon emissions compared to ordinary gasoline fuel. In this research, a mixture of Pertamax and Bioethanol with a mixture of variations, among others: pure Pertamax (E0), Pertamax mixture and bioethanol 5% (E5), bioethanol 10% (E10), and bioethanol 15% (E15). The fuel testing was carried out at the Environmental Service Laboratory using a 4-stroke Yamaha motorcycle brand. Mixing bioethanol as a fuel can reduce exhaust emissions from the combustion of motorcycle fuel 4 steps in all tests. The best test results obtained on the composition of the E10 fuel mixture with CO levels of 2.06%, CO2 levels of 6.96% and HC of 75 ppm. Keywords : Bioethanol, Gas Emissions, Hydrocarbons, Carbon Monoxide, Pertamax