bluuebunny/crossref_metadata_2025_split huggingface dataset:
Analysis of Electricity Generation from Landfill Gas (Case Study: Manggar Landfill, Balikpapan)
Authors: Banaget C K , Frick B , Saud M N I L 
Published: April 2020

Abstract
Despite of adverse impacts on the environment, landfill has big potency as renewable energy sources since it generates biogas from organic waste degradation process which can be used for power plant purposes. In 2017, the volume of waste disposed to Manggar Landfill was 128, 000 tons, which mostly are organic waste (59.4%). Therefore, this study aims to estimate the amount of energy that can be generated from landfill as methane, by calculating biogas production in landfill based on waste generation, as well as composition using LandGem and Afvalzorg model. In 2017, Manggar landfill produced about 4×103Mg CH4/year or about 5.31 to 6.44×106 m3/year. The estimated methane then converted to electricity using gas engine and trigeneration methods. Using gas engine, methane from Manggar Landfill is predicted to produce electricity about 787 MWh/month. On the other hand, if trigeneration method applied (by keeping the same gas engine as before), it produces 41.8% of heat which convert to 29.3 kWh of cold. In conclusion, it will be beneficial if Manggar Landfill capture and treat methane for generating electricity since Manggar Landfill produces about 6.44×106 m3/year which can be used for electricity purposes of around 10, 000 people using gas engine.
Performance Evaluation of Jatibarang Reservoir Due to Land Use Changing
Authors: Sarminingsih A , Samudro G 
Published: April 2020

Abstract
Jatibarang Reservoir is located on the Kreo River. These reservoir functions are flood control, water supply, and hydroelectric power. The total capacity is around 20.4 million m3. The spillway is designed at elevation +148.9 with a width of 15 m, capacity Q50 = 240 m3/s, and an emergency spillway at +151.80 m, the width of 60 m with a capacity of 1350 m3/s. This paper aims to evaluate the performance of reservoirs in their function as flood control, due to land-use changes in upstream of the reservoir catchment area. The method which was used is the HEC HMS. Land use map data is used for the 2016 and spatial planning map of Central Java province for 2011-2031. The results were obtained are the hydrological parameters increase in CN and imperviousness, decrease in initial storage, and initial abstraction wich increasing flood discharge. The impact of this, an emergency spillway that was designed for discharges higher than Q50, must function at discharge that smaller than Q50. The initial design, Q50 water level elevation below +151.8, but with the change in hydrological parameters, water level elevation of Q50 increase up to + 152.2.
Filariasis Vulnerability Zonation Based on Environmental and Behavioural Aspects in Pekalongan City, Indonesia
Authors: Siwiendrayanti A , Pawenang E T , Indarjo S , Hikmah I H 
Published: April 2020

Abstract
Pekalongan City is a filariasis endemic area in Central Java, Indonesia with Mf-rate >1%. It had held Mass Drug Administration (MDA) in 2011-2015. The evaluation result recommended it to re-hold MDA. This study aimed to compose filariasis vulnerability zonation based on environmental and behavioural aspects in Pekalongan City. The observed environmental aspects were the location of shrubs, cattle pen and tidal flood. The surveyed behavioural aspects were applicating mosquito repellent and hanging clothes habits. Filariasis cases data were collected from health office. This was a descriptive quantitative study with spatial approach. The environmental and behavioural aspects were observed and surveyed in 6 urban villages (38 RWs) with 387 households as samples which were chosen with proportional random sampling. The instruments were checklist sheets, Global Positioning System (GPS), satellite imagery and GIS software. Data were analysed with scoring, buffering and overlaying procedures. Results indicated some areas were categorized as highly vulnerable where shrubs, cattle pen, tidal flood and hanging clothes habit were present. It was concluded that all urban villages in this study had highly vulnerable RWs which are very potential for filariasis transmission. Applicating mosquito repellent habit was not potential aspect for controlling filariasis transmission in the studied areas.
Environmental Sanitation and Health “Nasi Sek” (Seribu Kenyang) Restaurant in Gandoriah Beach Pariaman City
Authors: Anggraini H , Sari S M , Razak A , Dewata I 
Published: April 2020

Abstract
The role of restaurants as food and beverage providers must have proper environmental sanitation and health requirement. This research carried out at the restaurant “Nasi Sek” (Seribu Kenyang), which was around Gandoriah Beach, Pariaman City. The purpose of this study was to decide the feasibility of environmental sanitation and the health of the restaurant “Nasi Sek” (Seribu Kenyang). “Nasi Sek” (Seribu Kenyang) is located around the Gandoriah Beach tourism object in Pariaman City. The feasibility was evaluated from the view of building aspects, food conditions, food processing equipment, kitchen, sanitation, and hygiene facilities. This study uses the method of direct observation and then analyzed descriptively referring to the Regulation of the Minister of Health of the Republic of Indonesia Number 1098 of 2003 on sanitation requirements for restaurant hygiene and restaurant sanitation. Subject research is restaurants around Gandoriah Beach. The results showed that the restaurant “Nasi Sek” (Seribu Kenyang) around the Gandoriah beach in Pariaman City had not fulfilled the feasibility of sanitation and health of the restaurant environment. From the aspect of the building that was not permanent and the condition of the restaurant floor that did not meet standards, The chef or food handler at the restaurant around Gadoriah Beach did not fulfill the requirements of the Minister of Health Decree in 2003. Suggestions for relevant agencies to supervise and guide restaurants in Gandoriah Beach can improve sanitation hygiene and restaurant environment health.
Potential Tropical Fruits to Aid Sports Performance and its Prospect to be Developed into Nano supplement
Authors: Chabib L , Trianloka A M B , Hidayat A U M J , Awaluddin R , Firmansyah F 
Published: April 2020

Abstract
The competition in sports is getting tougher, and the drives to achieve better result has led the athletes to indiscriminately use dietary supplements, including herbal ones. Fruits relatively can acts as a support in health and exercise thanks to its rich content of macro- and micronutrients, fiber, minerals, vitamin and a number of bioactive phytochemical components. The aim of this study is to review and gather information on tropical fruits which is capable to improve athlete’s performance and its prospect to be developed into nano supplement. This review examined online literatures via PubMed, Sciendirect, and Google Scholar. Based on the literatures, the exercise performance can be improved by various compounds found in tropical fruits such as banana, cherry, grape, pomegranate, and watermelon. Overall, tropical fruits can aid sports performance by improving physical strength, increasing the recovery in injury, attenuate muscle soreness, and reducing fatigue. It is suggested that there is possibility to apply nanotechnology to formulate fruits based sport supplement in the form of nanoparticles.
Community Engagement in a Social Movement: A Case of Geothermal Energy Development in Gunung Talang – Bukit Kili area
Authors: Fajri H , Nurhabibi P , Saputra B , Yuanjaya P 
Published: April 2020

Abstract
Social movements often emerge in response to repressive actions taken by the government towards the community. The main entities that become movers in social movements are civilian communities, be they NGOs, social activist groups, or communities with various other backgrounds. The purpose of this study is to look at the strategies of civil society groups in West Sumatra in developing discourse to increase community engagement. This research is in the form of case studies that focus on civilian communities that oppose geothermal development around the Gunung Talang - Bukit Kili area. This area is planned to be built a Geothermal Power Plant with an energy capacity of 20 Mw. Data is collected through field observations, interviews, and documentation. The results showed that the communities involved in the movement could be categorized into three groups, namely NGOs, Students, and the Community of Interest, and each group had different strategies in increasing community engagement. The background of the group influences the approach.
The Effect of Asiatic Acid and Metformin on The Viability Percentage of Mouse Macrophage Cell Lines RAW264.7 and Mouse Fibroblast Cell Lines NIH3T3
Authors: Awaluddin R , Nugrahaningsih D A A , Solikhah E N , Chabib L 
Published: April 2020

AbstractIntroduction: Diabetes can be caused by inflammatory regulation disorders. Metformin has been reported that inhibits the physiological function of normal cells. Asiatic acid, a bioactive compound from Centella asiatica, has the potential to be developed as a therapeutic agent for diabetes, but little is known about its toxic effects on macrophage cells and fibroblast cells. Objective: The study aims to evaluate the toxic effects of Asiatic acid and metformin on the viability of RAW264.7 macrophage cells and NIH3T3 fibroblast cells. Method: Asiatic acid and metformin with seven concentrations were given to RAW264.7 macrophage cell lines and NIH3T3 fibroblast cell lines. Viability percentage is calculated using the 3- (4, 5-dimethylthiazol-2-il) -2, 5-diphenyltetrazolium bromide method, and the absorbance is measured at 595nm. Results: Results have shown that Asiatic acid with concentrations> 12.5 μg/mL decreases the viability of RAW264.7 and NIH3T3 cells drastically. RAW264.7 and NIH3T3 cells that had been given metformin concentrations of 11.6 μg/mL to 370 μg/mL still showed a large percentage of cell viability. Conclusion: Asiatic acid has shown that the cytotoxic effect is greater than metformin, so it is necessary to pay attention to the concentration of the treatment.
Application of Hydrogeological Mapping and Geospatial Analysis to Determine Recharge and Discharge Areas in Sumowono Groundwater Basin
Authors: Putranto T T , Susanto N , Pangestuti DR , Alexander K 
Published: April 2020

Abstract
Sumowono groundwater basin is locating at Semarang Regency, Temanggung Regency, and some part in Kendal Regency. Increasing population growth in the Sumowono groundwater basin area is the cause of increasing water demand. This study aims to determine groundwater utility by the community, the value of each determinant parameters of the recharge area, and the distribution of recharge and discharge areas. The research methods were hydrogeological mapping and geospatial analysis, which includes combining several geological and hydrogeological parameters, namely hydraulic conductivity, precipitation, soil cover, slope, water table depth, and electrical conductivity (EC). Based on the result of the hydrogeological mapping, groundwater is mainly used for irrigation, fisheries, industry and domestic purposes. The soil covers consist of sandy clay and clay sand. The slope has a value of 0°-40°. Rainfall has a range 2, 500-3, 200 mm/year, depth of water table is up to 20 m below ground surface. The hydraulic conductivity values are 3.1 m/day (tuffaceous sandstone), and 270 m/day (volcanic breccia) with the EC values is 36-550 µS/cm. Based on the results of the geospatial analysis, the recharge area is spreading in the south and the east, while the discharge area is located in the northern part of the study area.
Evaluation of PM10 Concentrations in West Sumatra during Rainy Season
Authors: Goembira F , Adinda  , Farnas Z , Ihsan T , Djafri D 
Published: April 2020

Abstract
Pollutant concentrations in ambient air are fluctuating and influenced by the environment self-purification capability, such as by rainfall occasions. This research was done to evaluate ambient air particulate matter 10 (PM10) concentrations in West Sumatra Province during rainy season. Data from four sampling locations were collected, in which two of them were collected by automatic data collection in air quality monitoring station (AQMS) located at a roadside in the front yard of West Sumatra Governor Office, and Global Atmosphere Watch (GAW) located at a background concentration area in Bukit Koto Tabang. Meanwhile, data in two other locations were collected by using a low volume air sampler. These two locations represent industrial area that is adjacent to a cement factory, and a campus area that is located nearby an agricultural area. The measurement results show that the highest PM10 of 68.71±10.99 µg/Nm3 was measured nearby the cement production plant, which exceeded World Health Organization (WHO) threshold for 24-hour measurement. However, it is still below the Indonesian National Ambient Air Quality Standard (NAAQS). On the other hand, the rest locations still met both standards, i.e. 13.20±3.11, 28.60±13.97, and 33.85±8.41 µg/Nm3, at the background concentration area, Governor Office, and the campus area, respectively.
Analysis of Total Mangrove Carbon Stock Degradation in Kendari Bay
Authors: Iswandi  , Helmi M , Hadiyanto  
Published: April 2020

Abstract
Mangrove ecosystems are one of the blue carbon ecosystems in the coastal region. Mangroves can assimilate high carbon and can save carbon in the long term. Settlements and various centres of community activities have developed on the coast of Kendari Bay, which drastically decreased mangrove vegetation. Research on blue carbon placed in mangrove forests is vital to be carried out to determine changes in regional conditions in the coastal region. Spatial modelling is used to estimate the degradation of blue carbon stocks. A remote sensing data is required for producing spatial and temporal maps. InVEST (Integrated Assessment of Ecosystem Services and Sacrifices) can be used for mapping and modelling total carbon stock changes based on land cover changing in Kendari Bay. Carbon stocks can be calculated through spatial and temporal mapping in InVEST with past, present and future scenarios. Spatial dan temporal maps form InVEST can be considered in determining policies related to mangrove management and making more appropriate decisions in managing Kendari Bay area.
Exposure of Dust Inhaled with Lung Vital Capacity in Traffic Police Polres Ambon Moluccas
Authors: Fika E C , Suwondo A , Nurjazuli  
Published: April 2020

Abstract
Traffic police is a profession that has a very high risk of being exposed to air dust and pollutants. This study aims to analyze the exposure of dust inhaled and the lung vital capacity of traffic police. The study design was observational analytic with a cross-sectional study with a sample of 58 traffic police. Data collection by interview, measurement of dust levels inhaled using Personal Dust Sampler (PDS) and measurement of vital lung capacity with a spirometer. The majority of respondents aged >30 years (70.7%), working period >5 years (63.8%), smoking habits (62.1%), ability to exercise (34.5%), and use personal protective equipment (masks) (39.7%). The measurement results of inhaled dust levels (62.1%) and the results of the measurement of the lung vital capacity of traffic police (77.6%) had pulmonary dysfunction. The results of the research relation respirable dust exposure with lung vital capacity were respirable dust levels have no significant relation to the lung vital capacity traffic police p-value of 0.095 (p<0.05). This is possible because of influences from outside the workplace, habits, and lifestyle and does not use personal protective equipment (masks) when tasked with managing traffic.
Comparison of Suspended Particulate Matter Prediction Based on Linear and Non-Linear Models
Authors: Sumiyati S , Warsito B 
Published: April 2020

Abstract
Air pollution has been a serious problem in recent years. Air pollutants consist of gaseous pollutants, odours, and suspended particulate matter (SPM) such as dust, fumes, mist, and smoke. SPM has the potential to cause environmental and health problems. With the aim to anticipate the impact, SPM prediction from time to time is needed. In this research, we compared four models for predicting the SPM data. The two linear models selected were ARIMA and wavelet whereas the two non-linear models were neural networks based models, i.e. Feed Forward Neural Network (FFNN) and General Regression Neural Network (GRNN). All four models are built with the same input, which were the past data at the same lagged time based on the best ARIMA model. By using lagged time data as input, the goal is to predict the current of SPM data. Model accuracy is measured based on RMSE values, both in training and testing data. Data processing has provided interesting results that show the superiority of nonlinear models over linear models, especially in the training data.
Banana Tree as Natural Biofilter for Organic Contaminant in Wastewater Treatment
Authors: Zaman B , Sutrisno E , Cahyani F P , Raharyani D M 
Published: April 2020

AbstractAn organic contaminant is one of the environmental issues in the wastewater. Organic contaminants in wastewater may produce toxic chemicals during disinfection. Nowadays, food industries and restaurants are the main contributors to the organic contaminant in the wastewater. Organic contaminant caused the increase of BOD (Biological Oxygen Demand), COD (Chemical Oxygen Demand), TSS (Total Suspended Solid), and decrease DO (Dissolved Oxygen). The purpose of this article is to evaluate the efficiency of removing the organic contaminant from wastewater with natural biofilter from a banana tree. The efficiency of the banana tree was analyzed in terms of decreasing BOD, COD and the content of TSS. The parts of a banana tree that can be removed the organic contaminant from wastewater is its stem. The Banana stem used as natural media biofilter because of its abundant availability in Indonesia. The disadvantages of a banana tree were it can be easily placed by bacteria. Bacteria will develop well on the banana stem because the banana stem is moist enough and consist of much water in it. The banana stem contains cellulose fibers that can be used as media biofilter because of the characteristics of it, such as abundantly available, biodegradable, renewable, cheaper, low abrasive nature, unusual, specific properties, and exhibit excellent mechanical properties. However, the disadvantages of cellulose fibers were low thermal stability, moisture absorption, and poor compatibility.
Is Bio-activator from Vegetables Waste are Applicable in Composting System?
Authors: Sutrisno E , Zaman B , Wardhana I W , Simbolon L , Emeline R 
Published: April 2020

Abstract
Composting Process is alternative organic waste management for degradation waste generation. In general, bio activator will be added to the organic waste mixture which aims to accelerate the process of maturing compost and not forgetting the quality standards of it in order to apply to the soil so that the environment will stay in a healthy condition. Various types of bio activators used in the composting process such as EM-4, Acticomp, Orgadec, and also bacteria which can be produced using various source organic matters such as vegetable waste. Vegetable waste is an excellent medium for growing microorganisms, and it can be used as bio activator in the composting process. Another advantage of using this source is that vegetable waste is cheap and easy to find because they usually thrown away and not reused. Some researchers found bacterias like Streptococcus, Leuconostoc, Lactobacillus, and Pediococcus are contained by vegetables that will create lactic acid fermentation. This bacteria has a vital role in changing various sugars in vegetable waste, especially into lactic acid, which, when compost is given to the soil, bacteria will play a role to control the pathogenic organisms. Some studies about bio activator from a vegetable waste relationship have been done related to the compost quality result from the addition of the environmental bioactivation from vegetables. In this article, there will be reviews from various research journals related to the making and application of bio activator from vegetables in the composting process and to find out whether the use of vegetable waste is suitable bio activator for composting process.
Analysis of Motives that Affects Registrant and Patent Owners in Indonesia
Authors: Bakhtiar A , Rinawati D I , Pujotomo D , Indra I , Handayani P R 
Published: April 2020

Abstract
According to data in World Bank, Indonesian income per capita, in 2016, still below from another country such as Malaysia, Singapore, Brunei, and Thailand. This condition is same as high technology exports, in 2015, where Indonesia still lack from the countries. It can be concluded from income per capita and high technology exports that patent in Indonesia still lack. Based on data Directorate General of IPR said that the total of active patent in Indonesia is 15.343, during 10 years (2007-2016). This amount is still far away compared to patent from another country that attain 46.838. To increase the number of patent registration, it is necessary to research the motive of patent owners and registrants to register their patent. This research is conducted on patent owners who have registered their invention at the Directorate General of IPR. The results of this study will be made recommendations for the Directorate General of IPR and consultants in socializing the importance of patent registration. Patent registration factors or motives vary by stakeholder. Overall there are 4 factors, in individual stakeholder there are 2 factors, and enterprises stakeholder there are 3 factors. The differences of motives are according to the importance every stakeholder.
The influence of Keruing Sawdust on the geotechnical properties of expansive Soils
Authors: Niyomukiza J B , Wardani S P R , Setiadji B H 
Published: April 2020

Abstract
Expansive soils have proved to be problematic to most Civil Engineering structures. Several researchers have tried to look for different materials which can alter the properties of these poor soils, and among them are lime and cement, which are expensive. Considering the vast quantities of sawdust produced in woodwork departments, they can be used as a secondary stabilizer, thus leading to sustainable technologies. Sawdust not only acts as a cheap stabilizer but also reduces the problem of environmental pollution caused by its poor disposal. This paper examines the geotechnical properties of expansive soil stabilised by Keruing sawdust. The sawdust used as partial replacement of soil in the ratio of 0, 3, 5, and 7% by the dry soil weight. The investigation was done by conducting laboratory tests on both stabilised and non-stabilized soils. The results showed that Keruing sawdust significantly improved the geotechnical properties of the soil by reducing the plasticity index from 64% to 36% at 0% and 7% sawdust, respectively. The unconfined compressive strength and California Bearing Ratio also improved at 3% sawdust + 97% soil. It concluded that Keruing sawdust, a waste material could be used as a cheap additive to the expansive grounds.