Kinetic Study on the Effect of Substrate and Micronutrient Inhibition during Anaerobic Fermentation of Biohydrogen

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There are several factors that influence the production of biohydrogen by dark fermentation including inoculum seeds, type and concentration of substrate, pH, temperature, presence of micronutrient and reactor configuration. Previous research has proven that the concentration of substrate and the presence of micronutrient will influence the yield and productivity of biohydrogen production. However, improvement of yield and productivity of the process can only be achieved once the system is under the optimum amount of substrate and micronutrient. Therefore, the best way to determine the effect of substrate concentration and presence of micronutrient is through kinetic study that was done using Monod model along with Andrews model. Besides that, the substrate inhibition effect also will be evaluated to determine the maximum substrate that needs to be supplied for maximum hydrogen production, and thus supplied the information for economic feasibility for fermentation process. In the meantime, the inhibition effect of adding the iron nanoparticles also had been evaluated in order to understand the interaction effect between iron nanoparticles and bacteria in term of catabolism reaction. It was found that increasing the substrate concentration more than 10 g/l will cause the inhibition to the system, in which it will slow down the reaction process and reduced the production of hydrogen. While the presence of iron NPs more than its optimum value (200 mg/l) will inhibit the bacterial growth and hence, affect the hydrogen production. For both cases, when the inhibition occurred at the respective concentration, it was found that the metabolic pathway was shifted to produce more hydrogen-consuming metabolite such as propionate acid, and thus, dropped the hydrogen production.

Survival Strategy Restaurant Business during the Covid-19 Pandemic

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The occurrence of the Covid-19 pandemic forced the entire community to adjust itself by implementing a new order of life known as the “new normal” in every activity. Likewise, restaurant businesses are not immune from the impact of the Covid- 19 pandemics, so adjustments must be made so that restaurants can continue to operate and customer health and safety-related to Covid-19 can be carried out properly and correctly. To increase the sales volume of its products, it can do several things, including Lower Menu Prices, Give Special Discounts, Create More Durable Food Packaging, Prepare Food Delivery, Restaurant Business Starts Switching to Use Technology, Communication Between Businesses & Customers, Perform Marketing Plans and Pay Attention to Current Culinary Trends. Meanwhile, to make the restaurant operational cost-efficient, several strategies can be carried out, including Designing Cost Control Measure (CCM), re-identifying budgeting short-term and long-term, prioritizing cash flow safe and stable, reorganizing or redesigning the largest expenditure, and planning a more efficient division of labor fair and impartial. Furthermore, to guarantee customer safety from being exposed to Covid-19, restaurants can do the following: Communicate Safety and sanitation measures clearly and consistently, Avoid self-served dishes, Advice to maintain distance, Make strict rules regarding the use of masks on staff and diners, Offers waiting list and online pre-order facilities, Continues to offer no-contact options, Competes aggressively with retail options, Offers packaged dining options in the long term, Performs clear and systematic cleaning.

Gastronomy of Pesan Tlengis as a Tourism Attraction in Werdi Bhuwana Village Bali

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The general purpose of this research is to improve and develop Indonesia’s tourism development, especially rural tourism attraction in Bali, through developing traditional Balinese food so that it is known globally Abroad. However, the development of traditional food has not been achieved as expected. This happens because local food has not been explored in rural areas which are very abundant with culinary potential from nature to the fullest. One example is the food product pesan tlengis which is processed into delicious dishes and comes from the dregs of the process of making virgin coconut oil in Werdi Bhuwana Village. This study discusses in depth the forms of gastronomy that can be developed into a tourist attraction, and the efforts that can be made from the gastronomic meaning of traditional food pesan tlengis in Werdi Bhuwana Village, Mengwi District, Badung Regency. The research method with a descriptive qualitative approach uses several purposefully selected informants and data collection techniques are carried out by observation, in-depth interviews, and documentation studies with the theory developed in the form of gastronomic theory along with several microforms, tourism theory, and cultural theory. The results of the research will later show that coconut-based gastronomic forms need to be developed so that they can be used as tourist attractions. Efforts that can be made to develop the gastronomy of traditional food with pesan tlengis are related to the preparation and selection of materials, processing of materials, and presentation of food to be able to create new variants and products of good quality so that tourists can enjoy them. Furthermore, the gastronomic meaning of the pesan tlengis dish has been developed to provide added value to tourists and the people of Werdi Bhuwana Village, Mengwi District, Badung Regency.

Synonym in Malay and Arabic: A Comparative Study in the Aspect of Definition and Importance

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The study discusses synonym in Malay and Arabic with a general focus on its definition and importance. In addition to that, this study also aims to observe the differences and similarities that exist in both languages when it comes to defining or determining the definition of synonym done by Malay and Arabic scholars and the need of synonyms for both languages and nations. This study is a descriptive literature review that is using contrastive analysis. The result of the study shows that Malay and Arabic differ in selecting the basis for synonyms in the aspect of definition but both languages put ‘the similarity in general meaning’ as the main criteria in determining two synonymous words. On the other hand, the importance of synonym in Malay and Arabic is not much different. In Arabic, however, the need for synonym seems to be more apparent in the literary field especially in poetry that emphasizes qafiah and verse. On the contrary, the need for synonym in Malay is more significant when it comes to maintaining the manners and politeness in speech.

Analysis of Resilience of Family of Recipients of the Gemilang NTB Social Safety Net Program (JPS) During the Covid-19 Pandemic

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The goal of this study is to figure out how resilient families who get the Gemilang Social Safety Net (JPS) are in terms of physical resilience, economic resilience, social psychological and sociocultural resilience, and family resilience based on each type of work. Another part of this study will look at how income, the number of people living with you, and how many times you’ve been given JPS Gemilang affect your physical resilience. This is a quantitative study. The people who took part in this study were people who had JPS Gemilang stage III in the province of West Nusa Tenggara (NTB). Samples were chosen by a method called stratified random sampling. This study used the Treebox Method and multiple regression analysis to figure out how total income, number of dependents, and number of times receiving JPS Gemilang affected physical endurance, economic resilience, socio-psychological, and socio-cultural resilience, as well as how many times they were given the JPS Gemilang drug. According to a study done by looking at 100 samples, each person who gets JPS Gemilang has a high level of family resilience. This is true for the physical, economic, socio-psychological, and socio-cultural aspects that make up a person’s family. All of JPS Gemilang are in the top group. It doesn’t matter what job you do; your family is going to be able to handle it. People who work as professional staff, such as honorary teachers, honorary staff members, and teachers, do a lot of work that helps families be more resilient in general, but when they look at each of these things individually, they’re in the middle. Physical resilience, economic resilience, socio-psychological and socio-cultural resilience don’t seem to be affected by income, number of dependents, or number of times JPS Gemilang has been given to people. This is based on statistics.

Analysis Corporate Entrepreneurship in SOEs at Mining Sector with Private Companies as Comparative Study

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Competition between state-owned enterprises (SOEs) and private mining companies are getting bigger and stronger, but state-owned holding companies such as MIND ID have decreased performance due to several factors such as business focus and small business scale. This should be supported by the optimization of resources and the transformation of the competence of each employee to encourage the entrepreneurial spirit. This study was conducted to examine the corporate entrepreneurship culture in three state owned mining companies (PT. ABC, PT. DEF, and PT. GHI) and compared with private mining companies (PT. XYZ, PT. OPS, and PT. RTU). This study uses two methods, Entrepreneurial Orientation Survey (EOS) and Entrepreneurial Leadership Questionnaire (ELQ). EOS is used to measure corporate entrepreneurship culture and ELQ to see entrepreneurial characteristics in expected leadership and actual conditions of its implementation. EOS results show that the corporate entrepreneurship culture of mining SOEs has advantages in Cross-Functionality and Support to New Ideas while private mining companies have significantly higher Speed and Focus dimensions than mining SOEs. The ELQ results show that mining SOEs have the type of leadership in entrepreneurship (Miner type) and the leadership type of private mining companies in Explorer has a higher score than mining SOEs. Mining SOEs are advised to increase the dimensions of corporate entrepreneurship, one of which is by providing scholarships for employees taking magister program and creating a competition program that supports future innovation also the companies should provide training on corporate entrepreneurship.

Application of Activated Afzelia Africana and Acacia Albida Carbon for Removal of Pollutants in Textile Wastewater

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Adsorption of contaminants in textile wastewater onto activated carbon derived from two wood species has been studied using batch-adsorption techniques. This study was carried out to examine the removal efficiency of the low-cost adsorbent (Afzelia africana) AFA and (Acacia albida) ACA for the removal of heavy metals and other organic contaminants from textile effluents. The influence of contact time and adsorbent dose kept constant on the adsorption process was also studied. Removal efficiency increased with increase in contact time. The two adsorbents had an average removal efficiency of 60% at 90mins contact time for Zn. The ACA had higher removal efficiency for chromium at all contact times than AFA except at 120mins contact time where there existed a slight difference in the removal efficiency between the two adsorbents. Removal efficiency of iron was high between 58.18- 70.52% and 72.75-75.86% for AFA and ACA carbon respectively. This showed that iron had high affinity to the adsorbents surface. It was observed that AFA exhibited highest removal efficiency for nitrate at all contact times as compared to ACA. Results indicated that the freely abundant, locally available, low-cost adsorbent derived from the two wood species could be treated as being economically viable for the removal of contaminants from textile effluents.

In Depth Assessment on Digital Textile Printing Environment as the Concrete Path of Making Indonesia 4.0

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Textile-garment industry in Indonesia has been established as the primary industry and economy that becoming fundamental to nation’s wealth. Well known as a top 5 of global market supplier, this industry predicted to keep score and improving their productivity to reach better position. In last 2019, Government of Indonesia already announced the roadmap plan of Indonesia 4.0, which put textile-garment industry as the one of priority industry that will be essentially adopting digital equipment and workflow to keep competitive and becoming the backbone of national industry alongside with other 4 industries mentioned. With this initiative being deployed and how the road map plan already announced, Author want to elaborate, assess and analyse how ready is digital adoption on textile-garment manufacturers, specifically on digital printing workflow. So on, this research will be titled “In Depth Assessment on Digital Textile Printing Environment as the Concrete Path of Making Indonesia 4.0”. The main purpose of this research is to give the clear picture of how ready textile-garment industry Indonesia to fulfil both of extensive demand from domestic and global market by adopting digital equipment, in this research digital textile printing. By elaborating all the considerations and factor, we are hoping that there would be identified root issues beneath of this industry and directly formulating the best approach and solution for this industry.

Risk Mitigation Strategy and Efficiency Improvement of PT Gasses Logistic Transportation using Six Sigma DMAIC Method

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PT Gasses Logistic is one of the companies that operates in the downstream oil and gas industry that focuses on providing logistic services and other support. From oil, gasses, to lubricant, together with their partnership, PT Gasses Logistic are responsible of transporting those goods to their consumers across Indonesia. Also, PT Gasses Logistic is the subsidiary/child company from one of the biggest state-owned enterprises in Indonesia. The core business of PT Gasses Logistic is transportation, that is why every type of problem in transportation needed to be solved quickly.
Through this research, it is identified 4 problems by using Pareto Chart. The problems are work & traffic accident, losses while loading & unloading operation, risk in damaging MESRAN MIN 40, and risk in damaging RORED EPA MIN 90. Those problems will be evaluated with risk management framework and analyse further using Six Sigma DMAIC method. Risk management framework will be used to identify the risk rating for each risk, which will be used when planning the mitigation strategies. Six Sigma DMAIC method will identified what is the problem, how it the performance regarding the process related to the problem, what is the root causes, how to improve it, and how to control it.
After using the risk management framework and Six Sigma DMAIC method, it is found that the root causes of the problems, which is identified by using fishbone diagram tools, is People and Machine. The author then provided the risk mitigation strategies solution of improvement, the implementation plan, and how to control it. With this research, the author hopes that it will help reducing/mitigating any losses received by PT Gasses Logistic incurred by those problems.

An Exploratory Study to Identify the Factors Affecting the Management of Covid-19 Patients among Nursing Officers at Selected Hospital, Puducherry

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The pandemic outbreak of covid -19 especially caused by the pathogen called corona virus2 (SARS-CoV-2) which causes severe acute respiratory distress syndrome (SARS) .This virus especially affects the more elderly individual than youth and more men than women and killed over 80,000 in china. It was established by WHO.