bluuebunny/crossref_metadata_2025_split huggingface dataset:
Evaluation and efficient measurement I-Canang digital startup in Bali with questionnaire user experience and lean startup machine validation board
Authors: Ardyanti A A A P , Wibawa I P P S , Putra I G J E 
Published: December 2019

Abstract
Digital startups are more cutting edge for the young entrepreneurs in this year and always growing in numbers (1). This cause is affected change in business patterns in Indonesia, including Bali. This research aims about how to create a digital business with Lean Startup Machines and Questionnaire User Experience method (UEQ). This business originated from the fact that careers women in Bali had difficulty to buy traditional ceremonial equipment. We developed the early stage of software startup model. First of all, we must concept our ideas and manage it before provides clear criteria and then product ideas. Lean startup model is designed to minimize the risk of returns from products made for market needs. One of tools in this method for customer validation is the validation board. From the research obtained from the core assumptions to survey directly prospective customers for the minimum success criteria that are required. This research had 70% of success required which up to 3 times for the pivot. While the results of the Questionnaire User Experience method (UEQ) the opinion of the community about the system that had made get the overall average impression of Attractiveness (1.71), Persicuity (1.35), Efficiensy (2.66), Dependability (0.92), Stimulation (1.28) dan Novelty (0.69).
Determining an algorithm as the researcher’s contribution: An alternative to performance-based research honorarium
Authors: Pambuko Z B , Setiawan A , Rahayu H S E , Rusdjijati R , Setiyo M , Aman M , Praja C B E 
Published: December 2019

Abstract
The research grant is carried out with a quality assurance cycle that involves the research group to produce the research outcomes such as publication, books, or other intellectual property. However, there are problems regarding the distribution of honorariums from the rest of the budget so that they are fair according to the contributions of each researcher. Therefore, the purpose of the study is to establish the algorithm to produce the fairness index of honorarium distribution based on the researchers’ contribution. The index was built on the input, which is a manifestation of research quality assurance cycle and implemented in pseudocode and flowchart. The results show that the simulation of three conditions with different contributions from each researcher was carried out with accurate results and reflected the performance-based research honorarium distribution. Thus, the algorithm can be used by researchers for the fairness of honorarium distribution.
The study on the self-purification based on BOD parameter, Situ Gede Tangerang City, Banten Province
Authors: Purwati H , Fachrul M F , Hendrawan D I 
Published: December 2019

Abstract
Situ Gede is a natural small lake located in Kelapa Indah, Tangerang District, Tangerang City, which has an area of 5.07 hectares. The decreasing in water quality is characterized by the number of pollutants such as BOD (Biochemical Oxygen Demand), which are closely related to human activities such as the disposal by organic waste from domestic activities surrounding. The purpose of this study is to analyse the self-purification of water body in degrading of organic matter. The average of retention time of Situ Gede is 3.05 hours and a mixed concentration is 16.12 mg/l. The calculation results, the degradation rate at Situ Gede is 0.19/day. These results are stated as the composition of BOD in the Situ Gede situation not degraded perfectly. Alternative strategies for water pollution control can conduct by aeration to increase the oxygen for aerobic microorganism’s growth to process the organic matter degradation.
Coppper biosorption using beads biosorbent of mixed culture microalgae
Authors: Wilan T , Hadisoebroto R , Rinanti A 
Published: December 2019

Abstract
Research on the sorption process of copper metal (Cu2+) from artificial electroplating wastes using a biotechnology approach was studied using beads biosorbent of mixed culture microalgae Chlorella vulgaris, Chlorococcum sp., and Scenedesmus obliquus conducted in batch culture to determine the highest efficiency of Cu2+ adsorption as an effort to control Cu2+ pollution from the environment. Biosorbent is made into beads by mixing 0,5 gr (dead biomass)/gr (Na-alginate polymer). The beads biosorbent of these microalgae are contacted with Cu2+in the pH range 4-6 and contact time 0-180 minutes. The highest sorption efficiency of Cu2+ is 92% obtained at pH 4, 120 minutes’ contact time, in temperature of 25 ºC, and with an initial waste concentration of 25 mg/L. The sorption process of this research follows Langmuir Isotherm with R2 value of 0,9991. It is proven that beads biosorbent of mixed culture microalgae can be used as an environmental-friendly solution to control Cu2+pollution in the environment.
Utilization of styrofoam waste as a lost circulation material in drilling mud
Authors: Fadliah F , Manan H , Hamid A , Pratiwi R , Fajarwati K 
Published: December 2019

Abstract
Lost circulation is a major problem that was often found in the well drilling process. This resulted in rock formations to become unstable, cause damage to wells, equipment, and workers. So to overcome this problem, drilling fluid will usually include lost circulation materials that act as connecting agents throughout the openings in rock formations, which physically close the formation of the opening by entering into the hole and prevent more fluid from coming out. The method used is laboratory research to test the rheology properties of sludge that has been treated with the addition of styrofoam (1 to 5 grams) under conditions of temperatures of 83 °F to 243 °F with intervals of temperature increase of 40 °F and testing using the Fann VG Meter. The measurement results are then compared with the standard. This test was carried out to see the effect of mass and temperature on the physical and rheological properties of drilling mud. The result of this research shows plastic viscosity, yield point, and gel strength of mud increases with increasing concentrations of styrofoam, and decreased when the temperature was increased. The combination of mud that best fits with the standard was addition with 1 gram of styrofoam.
Analysis of hydraulic retention time variation on the leachate treatment by using anaerobic fluidized bed reactor
Authors: Tazkiaturrizki T , Rahayu R , Purwaningrum P 
Published: December 2019

Abstract
Sanitary landfill activities produce leachate that contain of high pollutant wastewater of the solid waste. Anaerobic Fluidized Bed Reactor (AFBR) is one of technology that be able to treat wastewater with high pollutants. This study has purpose to analysis the effect of hydraulic retention time (12, 24, 36, and 48 hours) on the leachate treatment using AFBR. The leachate was collected from TPA Rawa Kucing that has characteristics of COD 5200-5500 mg/L and BOD 2000-2500 mg/L. Seeding and acclimatization is the first method to get the biomass of anaerobic sludge without oxygen supply. During the process, nutrient for the biomass was maintained by giving additional nutrient of glucose 33%, sanitary landfill sludge filtrate 5% and 33% of leachate and 28.3% chlorine-free water at the first formula. The second formula is by mix the glucose 20%, sanitary landfill sludge filtrate 6% and 40% of leachate and 28.3% chlorine-free water, and it took 3 months. The results are optimum variations of hydraulic retention time is 48 hours, to remove BOD, COD, and TSS at 78%, 92% and 22% efficiency. The degradation rate of the substrate (k) in anaerobic fluidized bed reactor is 0.727/day for leachate which has load of 5229 mg/L.
Innovation potencies to conserve the environment quality in the young generation
Authors: Yustiani Y M 
Published: December 2019

Abstract
Environmental damage that has occurred in Indonesia has severely disrupted public health. This condition shows that there needs to be a breakthrough in the form of innovations, especially in terms of technology to prevent and control of environmental damage. This study aims to investigate the potential for innovation in the field of environment that was generated by Indonesia’s young generation. The method used in this study was the distribution of questionnaires to 78 respondents randomly and a review of secondary data. The results of the study show that innovations to improve environmental conditions are not solely by making pollution control devices, but also innovations related to the use of environmentally friendly energy, waste recycling, and innovations that can change the behaviour of people as polluter. The results also showed that only 50% of respondents felt the support of the Indonesian Government towards innovation development programs. The biggest obstacle for respondents in realizing innovation is limitation in funding. Therefore, the most needed activity is training on how to develop ideas into innovations and potential funding that can realize these innovations. There are 76% of respondents interested in applying the intellectual property for their innovations in the form of patents or copyrights.
Abundance of green algae in the intertidal zone of Karang Papak Coastal, West Java, Indonesia
Authors: Cahyanto T , Paujiah E , Rinasti I , Suryani Y , Adawiyah A , Ulfa R A 
Published: December 2019

Abstract
Green alge (Chlorophyta) is the one of macroalgae who have much function such as ecologically and economically that living in the intertidal zone. Several genera of Chlorophyta have been used by local society around coastal area of Karang Papak Coastal, West Java as local product, but the research about abundance of Chlorophyta in Karang Papak coastal was not yet understood. This research aims to study of abundance of green algae in the intertidal zone, Karang Papak Coastal, West Java, Indonesia. This study was conducted on November 2018 and collecting data were collected using ransect method and held in every week (following moon phase). The website of algaebase.org and macroalgae identification books was used to green algae identification and then the results was verified by professional researchers from Lembaga Ilmu Pengetahuan Indonesia (LIPI). Data analysis was performed by calculating the total individual of each type green algae. The results showed that green algae were found consist of 15 species and 6 genus. The highest abundance of green alga species is Ulva lactuta and the lowest one is Codium tomentosum. Its can be caused by environmental factors such as nutrition, temperate, seasonal and tides of seawater. This data can be used for complete data about Indonesian macroalgae and as suggestion for management and monitoring of macroalgae by government and local people to maintain the sustainability of Chlorophyta.
Correlation and path coefficient analysis of heat stress tolerance characters in potato
Authors: Supriatna J , Nuraeni A , Fajarfika R , Sahat J P 
Published: December 2019

Abstract
Morphophysiological characters associated with yield in warm climate area can be used to determine heat stress tolerance characters. Correlation and path coefficient analysis were used to ascertain the relationship between morphophysiological characters and yield, and to estimate direct effects as well as indirect effects on them. Nine cultivars were evaluated in Garut, Indonesia which is situated at an altitude of 732 masl with an average air temperature of 28°C at noon and 23°C at night. Randomized complete block design was used in this experiment and it was performed in triplicate. As the result, correlation analysis indicated that plant height, leaf number, leaf area index, stomatal density, dry weight, tuber number, and tuber diameter showed positive relationship with yield, whereas chlorophyll content showed negative relationship with yield. Furthermore, path coefficient analysis indicated that plant height, leaf number, leaf area index, tuber number, and tuber diameter showed positive direct effect on yield. Path coefficient analysis also indicated indirect effects among characters. Plant height had positive indirect effect on yield through leaf number and leaf area index. Leaf number had positive indirect effect on yield through leaf area index, tuber number, and tuber diameter. Tuber number had positive indirect effect on yield through tuber diameter.
Isolation and characterization of endophytic bacteria from mangrove Rhizophora mucronata Lam. and antibacterial activity test against some pathogenic bacteria
Authors: Maulani B I G , Rasmi D A C , Zulkifli L 
Published: December 2019

Abstract
Mangrove plants are widely used traditionally in treating various types of infectious diseases in the people of Lombok Island. This study aims to isolate and characterize endophytic bacteria from the roots, stems, leaves and fruits of mangrove Rhizophora mucronata Lam. which grow in coastal region of Lombok Island (Gili Sulat), and to determine their antibacterial activity against some patogenic bacteria, such as Escherichia coli, Staphylococcus aureus, Bacillus cereus and Pseudomonas aeruginosa. Media used for isolation were NA and TSA. Antibacterial activity tests were carried out with well diffusion methods, and the level of antibacterial activity refers to the category according to Vasanthakumari. Characterization of endophytic bacteria includes their colony morphology, cell morphology, and physiology. Eighteen (18) endophytic bacteria isolates were obtained. Results showed that 12 isolates of endophytic bacteria had moderate (8-12mm) to strong category (Φ > 12mm) of their antibacterial activity against B. cereus and P. aeruginosa. Isolate of NBM2(1) gave the strongest antibacterial activity against B. cereus. It can be concluded that endophytic bacteria isolated from mangrove R. mucronata Lam. is highly potential to be developed as a new antibacterial source, especially against B. cereus pathogenic bacterium.
Performances Holstein Frisien (FH) dairy Cow in different agricultural ecosystem
Authors: Kusmayadi T , Hasan M , Herawati E , Tanuwiria U H 
Published: December 2019

Abstract
This research was about the performance Friesian Holland dairy cow in different agricural ecosystems inIndonesia. The objective of research was to study growth performance, body weight and milk production FH in Indonesia. The method of the research was survey method, with the technique of determining farmers proportionally. Sampling farmers and their livestock by random sampling method. The data was processed using SPSS 22.0 for the simple descriptive analysis and then tested statistically used T-Test. The results it was concluded that growth, body weight, and milk yield of dairy cows were influenced by agroecosystems, in the dry land agroecosystems and located on or adjacent to forests (dryland and tropical forest/AES DL-Forest), productivity of dairy cows was better than irrigated and dry land with wide balanced rice agroecosystems (DL-IRF) and rainfed and dry land agroecosystems (AES DL-Rainfed).
Optimum sustainable population estimation of Rusa timorensis in Pananjung Pangandaran nature reserve and natural park
Authors: Yuliawati A , Listiawati M , Santosa Y , Thohari A M 
Published: December 2019

Abstract
Three main objectives of conservation are protection, preservation and sustainable utilization. Timor deer is one of Indonesian wild animal that has many benefits and high economic value. But the current Timor deer population continues to decrease with population decline rate of 10% in each generation. It caused by harvesting without considering sustainability. Therefore it is necessary to manage the population for Timor deer, so it can be available for sustainable use. Optimum sustainable population is a threshold population size for sustainable harvesting. The purpose of this study is to estimate the optimum sustainable population size so Timor deer can be utilized sustainably in the future. The method used was projecting the actual population by using Leslie matrix (Density Dependence) so that population growth can be seen. The optimum sustainable population is the size of the population with the highest growth rate. The time used for this population projection is 100 years. Based on the results of this research, the optimum sustainable population size for Timor deer in the Pananjung Pangandaran nature reserve and Natural Park is 751 individuals and the optimum sustainable population size will be achieved in 2047.
The life cycle of great Mormon butterfly (Papilio memnon memnon) in captivity
Authors: Komala R , Suryanda A , Wiyati S Y 
Published: December 2019

Abstract

Papilio memnon memnon is one of the butterflies groups of the Papilio clan in West Java, Indonesia. This study aims were to determine the morphology, behavior, and life cycle of the P. m memnon butterfly. The research method used is descriptive with survey techniques and literature studies. This study aims to determine the morphology, behavior, and life cycle of the P. m memnon butterfly. The research method used was descriptive with survey techniques and literature studies. Data about morphology, duration of life, and behavior at each development phase during the P. m memnon butterfly life cycle were analyzed descriptively based on direct observation. The results showed the egg phase of P. m. memnon takes about 7-8 days to the phase instar1 of the larvae. The average total time needed in the larval phase is around 23 - 45 days to the pupa phase. The Pre-pupa phase lasts 1-2 days, while the pupa phase lasts 2-3 weeks. P. m. memnon performs the larval phase as many as 5 stages of instar. Food eaten by first phase instar 1 of larvae is the eggshell, which is useful for insect growth and helps eliminate evidence of eggs from parasitic attacks. At each phase of development, the larvae eat the outer skin to obtain additional energy to support growth.
The ability of garlic extract and Kaempferia galangal inhibit Aspergillus sp. isolated from Sardine fish Pedetan
Authors: Singapurwa N M A S , Candra I P , Rudianta I N 
Published: December 2019

Abstract

Pedetan is one of the food products of the traditional Balinese fish Sardine which is processed by the community in the Jembrana Regency of Bali Province. This study aims to determine the antimicrobial activity of garlic and kaempferia galangal in inhibiting the growth of Aspergillus sp. which can contaminate the sardine fish Pedetan. The study was conducted by isolating Aspergillus sp. from Pedetan and testing the inhibitory power of garlic and Kaempferia galangal. The results showed that the extract of garlic and Kaempferia galangal can inhibit the growth of Aspergillus sp. From the results of SEM observations, it was found that garlic and galangal were able to damage the Mycelia Aspergillus sp. compared to control treatment. Garlic extract and kaempferia galangal can inhibit the growth of Aspergillus sp. because it contains bioactive compounds that are antimicrobial.
Lianas diversity in Gambung area Gunung Tilu Nature Reserve
Authors: Cahyanto T , Yuliawati A , Adawiyah N F , Fajar D 
Published: December 2019

Abstract
Lianas is one of the conspicuous plants in tropical rainforests. One of remaining tropical rainforest in West Java which potentially as lianas habitat is Gunung Tilu Nature Reserve. This research aims are inventory and determine the diversity of lianas in Gambung area which is the most potential area for lianas habitat in Gunung Tilu nature reserve. This research was carried out by a descriptive exploratory method. Sampling was done by combining transect and quadrat technique method, with the length of the transect is 700m which stretched from an altitude of 1489mpl (the lowest altitude at the study site) to 1580mdpl (highest altitude). The results showed that there were 13 families, 15 genera with 24 species of lianas. Tetrastigma sp. is the type of liana with the highest Important Value Index of 29.24%, while Aeschynanthus sp.2 and Cissampelos pareira have the lowest Important Value Index of 0.47%. Lianas Shannon – Wiener diversity index in Gambung area Gunung Tilu nature reserve is 1.092.
Growth pattern and maturity level of Chevron Snakehead’s gonad (Channa Striata)
Authors: Suardika I P , Edi D G S , Arya I W , Darmadi N M 
Published: December 2019

Abstract
Chevron Snakehead (Channa striata) is one kind of freshwater fish that has high nutrient content, particularly albumin. Chevron Snakehead is mostly found in public waters and has not cultivated extensively. This research was aimed to investigate the behaviour, the biological features, the maturity level of gonad, and the growth pattern of Chevron Snakehead. This research was conducted in Tukad Yeh Sungi and irrigation canal of Subak Baru in Baturiti Sub-district, Tabanan Regency in 30 September until 27 October 2017 by using observation, descriptive, and analitical methods. Chevron Snakehead which was found in this research was Channa striata that mostly found in deeper waters with rocky or sandy substrates. This fish is included into nocturnal and carnivora. b. based on the maturity of the gonads of male Chevron Snakehead the testicular weight was 0.1-0.85 gr. Whereas for females it has a gonadal weight of 0.5-1.86 gr. Chevron Snakehead found in rivers have allometric growth patterns, with b values obtained <3 which are b values of females = 2.8696 and b values of males = 2.3335, therefore the growth pattern of Chevron Snakehead was allometric negative. Negative allometric is the dominant increase in on weight gain.
Phenophysiology of the formation and fall of flowers in overcoming efforts fruit-set failure in siam citrus plants
Authors: Sulistiawati N P A , Mahardika I B K , Yuliartini M S 
Published: December 2019

Abstract
Flowers are the critical point of fruit formation. In this study the design used was a randomized block design, taking into account the position of the stem and the season affecting the fall and making flowers. The average value between intervals and Gadu does not show a significant difference with the number of falling flowers, namely: 152.57 florets and 151.44 (florets). The percentage of fruit set at the top, middle and bottom stems produce a difference, 92.75% followed by the middle stem, namely: 92.52%. The average value between intervals and Gadu does not show a significant difference with each percentage of fruit sets formed, namely: 93.30% and 93.07% Percentage formation of fruit sets in the upper stem supported by high leaf chlorophyll content Nutrient content of N, P, and K in the upper stem is 25.82%, 1.40%, 0.74% 3.42% when compared to rootstock, which are: 18.64%, 1.16%, 0.13% and 2.17%.
Implementation of the Static Var Compensator (SVC) in the sub system 150 KV transmission to improvement effort voltage quality in West Java Area
Authors: Hasbullah H , Mulyadi Y , Saputra W S , Muhammad N 
Published: December 2019

Abstract
This study aims to determine the voltage losses on the 150 KV transmission line in Cibatu and Mandirancan Sub-systems in the PLN APB West Java region. This study utilizes the effect of the installation of Static VAR Compensator on voltage losses on a 150 KV transmission line during peak load conditions. By knowing the characteristics of the system on a channel that utilizes sensitivity to the addition of loads, the installation of SVC will have an impact on the improvement of voltage losses on the transmission network. This study uses simulations using ETAP software version 12.6. From the calculation simulation results that use the actual data of APB West Java in the amount of voltage loss on the channel. While based on the ETAP simulation results, there were improvements in voltage losses at Dawuan substation by 13.56%. This proves that SVC installation on transmission lines can reduce voltage losses in the Cibatu and Mandirancan Sub Systems.