bluuebunny/crossref_metadata_2025_split huggingface dataset:
Water conservation model in Ayung river estuary based on ecotourism
Authors: Eryani I G A P , Jayantari M W 
Published: December 2019

Abstract
The Ayung river basin is the largest watershed in the Bali Penida River Region. The increase in population and the demands of a more viable livelihood have encouraged people to continue to strive to meet all their needs and the development of tourism in Bali that is growing rapidly, but behind that there will be a negative impact caused mainly on the river water environment and river estuary. For this reason, it is necessary to evaluate the environmental conditions of river estuaries and environmental arrangements to be able to support water needs and tourism activities. The purpose of this study was to create a model of water resources conservation at the Ayung river estuary based on ecotourism. The research method uses qualitative methods, which will integrate conservation of water resources that may be carried out in research areas based on ecotourism. The data used are in the form of primary data and secondary data where the primary data is in the form of observations directly to the location of the study and survey by interviewing the surrounding community about tourism activities in the research location. Meanwhile, secondary data in the form of water potential data, land use, topography obtained from survey and related agencies. The results of the study using the SWOT model obtained several alternative conservations that can be done based on ecotourism.
Exploitation of natural materials energy in eastern Indonesia and efforts to fight for the sovereignty of local communities
Authors: Fios F 
Published: December 2019

Abstract
One form of development activities carried out by humans is the exploitation of natural materials energy. Often the activity of exploiting natural material energy is only oriented to human interests, but ignores aspects of sovereignty (autonomy) of nature and the future of members of the local community of exploitation place. This paper shows field observations and literature reviews on the practice of energy exploitation of natural materials in Eastern Indonesia, which lacks attention to the dimensions of the balance of nature and the interests of local communities. Eastern Indonesia has not prospered because it is still struggling to obtain their sovereignty in the exploitation of natural materials in their own land. Often social conflicts arise due to the exploitation of material energy carried out. This study aims to find the phenomenon of natural exploitation in eastern Indonesia and build awareness to create sovereignty for local communities. The research method uses interpretative analysis and philosophical reflection to get meaning. Research found a theoretical model that is useful for overcoming the problem of exploitation that occurs. Those humans must transform themselves into ecological human beings so that they can bring practical benefits to the good of nature and East Indonesia local people towards the vision of sustainable development.
The evaluation of sterilization protocol for sprout explants in oil palm (Elaeis guineensis Jacq.) tissue culture
Authors: Neliyati N , Lizawati L , Zulkarnain Z 
Published: December 2019

Abstract
The objective of this study was to develop an efficient protocol for sterilization of sprout explants in tissue culture of oil palm. Plant materials used were plumulae and radicle from sprouts of the D x P Sriwijaya variety obtained from Seed Processing Unit PT Binasawit Makmur, Palembang. The medium used was MS composition was supplemented with vitamins, myo-inositol and sucrose, and the pH was set at 5.8 ± 0.02 before being solidified with agar. Cultures were maintained under a light intensity of 1,500 lux and 16-hour photoperiod and temperature of 24 to 26°C. Five protocols for the eradication of explant contamination were tested. i.e. There were 5 (five) different methods of explant sterilization employed, ie: A) explants were washed with sterile aquadest followed by soaking in 70% alcohol for 1 minute; B) explants were washed with sterile aquadest followed by soaking in 1% Benlox 50WP solution for 30 minutes, 1% Agrept 20WP for 30 minutes, and soaking in 70% alcohol for 5 minutes; C) explants were washed with sterile water plus detergent, followed by soaking in 1% Benlox 50WP plus few drops of Tween-80 for 30 minutes, soaking in 1% Agrept 20WP plus few drops of Tween-80 for 30 minutes, soaking in 70% alcohol for 5 minutes; D) explants were washed with sterile water plus detergent, followed by soaking in 0.1% HgCl2 solution for 30 minutes; and E) explants were washed with sterile water plus detergent, followed by soaking in 0.2% Dithane M-45 plus few drops of Tween-80 for 30 minutes, soaking in 1% NaOCl for 5 minutes, soaking in 0.1% HgCl2 plus few drops of Tween-80 for 30 minutes. The results showed that treating the explants with 0.1% HgCl2 for 30 minutes following 0.2% Dithane M-45 and 1% NaOCl applications was proven to be effective for the eradication of contamination.
The evaluation of various nutrient formulation on the growth of lettuce (Lactuca sativa Var. Arista) in hydroponic raft system at tropic region
Authors: Frasetya B , Taofik A , Sholehah M 
Published: December 2019

Abstract
Lettuce (
Lactuca sativa Var. Arista) is leaf vegetable which consumes as a fresh vegetable. The quality is a crucial role in increasing the market price of lettuce. A large number of nutrient solution is sometimes confusing the farmer or grower which will they choose. The research objectives evaluate five nutrient formulation from local formulator and global formulator. This research conducted in June to July 2018 at Greenhouse of Universitas Padjadjaran, Jatinangor. Indonesia. The experimental design used in this research was completely randomized design with five treatments of nutrient formulation e.g., Sutiyoso (local formulator), Hoagland & Snyder, Hoagland, Shive & Robbins, and Resh Lettuce Anguila. The parameters of lettuce growth (plant height, leaves a number, leaf area, fresh weight of the plant, dry weight of the plant) observe and measure. The data of lettuce plant growth than analyzed with variance analysis α=5% and post hoc test analysis use Duncan multiple range test α=5%. Each of the treatment replicate five times. The results showed that different of nutrient formulations for lettuce have a different effect on growth parameters such as of plant height, number of leaves, leaf area, fresh weight of the plant, dry weight of the plant. The Sutiyoso nutrient formula effective for tropical lettuce hydroponics in Indonesia.
Antibacterial activities test of Cajuput Leaf Waste extract (Melaleuca cajuputi Powell) on Pathogenic Bacteria
Authors: Ukit U , Widiana A , Rahmawati E , Hasby R M 
Published: December 2019

AbstractCajuput plant (Melaleuca cajuputiPowell) and its waste is one of the plants that can produce atsiri oils. Cajuput plant essential oil has the largest compound component, 1.8 cineol which has the ability as an antibacterial to kill pathogenic bacteria. The purpose of this study was to determine the antibacterial activity of cajuput leaf waste extract against pathogenic bacteria and find out the category of inhibition zones formed from extracts of cajuput leaf waste. This study used a completely randomized design method. Cajuput leaf waste used has a shelf life of 0, 2 and 4 months old. The pathogenic bacteria used consisted of 17 isolates, each treatment was repeated twice. The results showed that cajuput leaf extract had antibacterial activity known by the formation of inhibitory zones. The inhibitory zone in the extract of the 0-month leaf waste was greater than in the leaf extract of leaf of 2 months and 4 months. The diameter of the inhibition zone is at most 13 mm and at least 1 mm. With these results, it can be concluded that the antibacterial activity of cajuput leaf waste belongs to the category of low to strong.
The effects of subtrat composition on the growth of Brassica oleraceae Var. Achepala with drip hydroponic
Authors: Taofik A , Frasetya B , Nugraha R , Sudrajat A 
Published: December 2019

Abstract
The drip hydroponics system has a weakness which at a high evapotranspiration condition can’t fulfill plant water requirement properly. Improving the composition of plant growth media with cocopeat and rice husk charcoal is a solution to increase Kailan Plant Growth. This research aims to study the effect of a ratio between cocopeat and rice husk charcoal as plant media to increase productivity of Brassica oleraceae on drip hydroponic. The research was conducted at Jatinangor-Sumedang-West Jawa from November to December 2017. The method of this research used completely randomized design with five treatment (A=Cocopeat 100%; B=Cocopeat 75%+ Rice Husk Charcoal 25%; C = Cocopeat 50% + Rice Husk Charcoal 50%; D = Cocopeat 25% + Rice Husk Charcoal 75%; E = Rice Husk Charcoal 100%), and five replication. The growth indicator in this research is plant height, number of leaves, leaf area, fresh plant weight, and shoot-root ratio. The ratio of cocopeat and rice husk charcoal as plant growth media affect the plant growth of kailan. The result showed that composition grows media Cocopeat 75% + Rice husk charcoal 25% affect plant height, fresh plant weight, and shoot-root ratio. The plant grow substrates with good aeration and water holding capacity can improve Kailan plant growth on drip irrigation system.
Comparing the Javanese Edelweiss (Anaphalis javanica) density in Tegal Alun, Tegal Bungbrun and Pondok Saladah of Mount Papandayan
Authors: Amalia L , Hakim W L , Miranti M , Putri D I , Kristianti T 
Published: December 2019

Abstract
Javanese Edelweiss (Anaphalis Javanica) is a natural plant possessing enormous ecological benefits. It is commonly found in volcanic ash deposits and soils as in Mount Papandayan. However, It is considered as an endangered species. This study was intended to: (1) compare the density of Javanese Edelweiss in Mount Papandayan especially in Tegal Alun, Tegal Bungbrun and Pondok Saladah; (2) find out the abiotic factor effects (temperature, light intensity and soil pH) on the Javanese Edelweiss density. To this end, this study employed quantitative descriptive method. The data were collected through belt transect technique covering 100-meter-in-length and 5-meter-in-length tracks in the three different locations; Tegal Alun (28 transects), Tegal Bungbrun (3 transects) and Pondok Saladah (10 transects). The result found that the density of the Javanese Edelweiss in Tegal Alun, Tegal Bungbrun and Pondok Saladah was different. The density values are 2275.7 trees per hectare in Tegal Alun, 946.7 trees per hectare in Tegal Bungbrun and 366 trees per hectare in Pondok Saladah. For the abiotic factors, the statistical analysis revealed that air temperature, light intensity and soil pH simultaneously influence the density of Javanese Edelweiss with R = 0.85 and effect size of 70%.
The effect of swimmer crab flour (Protunus pelagicus) and Arbuscular Mycorrhizal Fungi on flowering and yield of Japanese Cucumber (Cucumis sativus L.)
Authors: Hidayat C , Ahyar Y , Setiati Y 
Published: December 2019

Abstract
Swimmer crab flour (Protunus pelagicus) which has high Ca content and Arbuscular Mycorrhizal Fungi (AMF) can be used to overcome acid soil. The aim of this research was to know the interaction effect of swimmer crab flour and AMF on increasing acidic dry soil productivity for the growth and yield of Japanese cucumber plant. The polybag research was conducted at Nagreg Subdistrict, West Jawa, Indonesia from May to July 2018 using Randomized Block Design with two factors and three repilactions. The first factor was swimmer crab flour doses (control, r1 = 9 g 5 Kg soil−1, 12 g 5 kg soil−1,15 g 5 kg soil−1 and 18g 5 Kg soil−1) and the second factor was AMF dosage (control, 5 g crop−1 and 10 g crop−1). The results showed that there was an interaction effect of swimmer crab flour and AMF on the root infection degree, there was main effect of swimmer crab flour on flowering time, dry weight of fruits, and harvest index of cucumber, and there was an main effect of AMF on the harvest index. Thus the application of swimmer crab flour more reliable to increase japanese cucumber production.
Jigsaw learning model base on cooperative instructional strategies to improve academic discussion in adult education on environment concepts
Authors: Yatimah D , Solihin S , Adman A , Syah R 
Published: December 2019

Abstract
This study investigates the contribution of the Cooperative Learning Strategy in developing academic discussions. Academic discussion is an important element of historical thought, which is considered to increase conceptual understanding and support the development of democratic citizenship by helping students interpret, understand and connect patterns of human activity across time in the environment. Adult learners as a condition of research participated in this study. Student students today will learn effectively that he is directly involved in learning, his ideas, learning and teaching material, learning with his profession. This study aims to determine jigsaw learning based learning in improving adult learning on the concept of the Environment. The method used is descriptive qualitative. The study sample was around 25 people at the Jakarta State University Environment. The outcome variables discussed in this paper are adult learners who have the self-concept, experience, and self-esteem of adult students and the classroom climate. During the study period, cooperative learning did not significantly increase the self-esteem of adult students.
Innovation works of critical impact training model based on mass media to improve the capability of environmental critical learning for learners of the critical pedagogics
Authors: Yatimah D , Adman A , Solihin S , Syah R 
Published: December 2019

Abstract
Learners critical thinking skills in environmental concepts can be improved by one of them by realizing learning through critical literacy training based on mass media. The research was conducted at the Didactic LPM Secretariat, UNJ as a routine meeting of the NGO Unlimited Schools office on Kemandoran Street. Empirical information about the improvement of critical learning skills of members of critical pedagogy groups. The method used in this study is Practical Action Research or action research by organizing a learning action in a training model. The results of research obtained showed an increase in critical learning skills of members of the critical pedagogy groups after being given a treatment. The average increase in their critical learning abilities reaches 43%. The conclusion that can be drawn is that this study is likely to be used for critical learning that is used functionally in other objects.
Flavonoid of some antioxidant plants in Taman Wisata Alam Pangandaran
Authors: Rahayu S , Tania N 
Published: December 2019

Abstract
Flavonoids can be found in every organ of plants and has a role as natural antioxidant. The aim of this research was to investigate the influence of maceration and drying time to the level and the type of flavonoids from some leaves of plants located in Taman Wisata Alam Pangandaran. This research used CRD (Completely Randomized Design) with 2 factorial design. The first factor was soaking time of the plant extract in ethanol 96% for 24 hours and 48 hours, the second was drying time for 14 and 21 days. Sample used were Bungur (Largerstoremia speciosa L.), Mahoni (Swietenia macrophylla), Nyamplung (Calophyllum inophyllum L.), dan Vitex (Vitex pubescens Vahl.) leaves. Qualitative parameter was determined from the change of color of the solution as well quantitatively by spectrophotometer of 415nm. Flavonoid type was then analysed using spectrophotometer at 250-560nm. Qualitative result showed that all plants assessed contain flavonoid in varying level. The type was also ranging between each sample. Quantitative analysis of 2 ways ANOVA showed that maceration and drying were shown significance influence with optimum flavonoid level varying from one plant to another. It can be concluded that all plants tested positively contain flavonoid with different type and immersion as well as drying has significantly affected the quantity of flavonoid result in plants.
Isolation of potential proteolytic bacteria from hospital wastewater
Authors: Dewi S R , Paramasatiari A A A L , Rusni N W , Suwarna I W 
Published: December 2019

Abstract
Wastewater needs to be processed before being disposed of. Generally, the wastewater that produced by a hospital contains a lot of bacteria, viruses, chemical compounds, and drugs which can be harmful to the health of the surrounding community. For this reason, it is necessary to process hospital wastewater by using effective and efficient wastewater treatment technology. One of the processes of wastewater treatment is biological processing that uses microorganisms. The aim of this study is to isolate microbial that produce proteolytic capabilities that are potential in treating hospital wastewater. This research is a descriptive study with a cross-sectional design. Samples were taken from the Wastewater Treatment Plant Installation of Kasih Ibu General Hospital in Denpasar. The screening of the proteolytic bacteria was done by growing the isolated culture on skim milk agar. The colonies that produce clear zone were identified as proteolytic bacteria. In this study, a total of 43 isolates were obtained and two isolates showed their proteolytic activity. Both isolates are Gram-positive cocci and Gram-negative bacilli.
The differences in the types of packaging and duration of storage on the quality of Tilapia (Oreochromis niloticus)
Authors: Pandit I G S , Permatananda P A N K , Wulandari R 
Published: December 2019

Abstract
One of the most popular types of tilapia dishes is nila nyat nyat, which is boiled with Balinese spices until the water runs out. This study aims to determine the interaction between the different types of packaging and the length of storage to the quality of tilapia boiled with Balinese spices and to know the differences in the type of packaging and the length of storage to the quality of tilapia boiled with Balinese spices. The method used in this study was a factorial complete randomized design with 2 factors, namely; factor A (type of packaging) which consists of 2 types: Styrofoam (A1) and mica (A2) and factor B (storage time) which consists of 3 types: 0 days (B1), 3 days (B2), and 6 days (B3). Observations include subjective and objective observations were done. The interaction between packaging type and storage time only affects the Total Plate Count (TPC) value of tilapia boiled with Balinese spices. The types of packaging, both Styrofoam and mica, have a significant influence on the value of TPC. Storage time in cold temperatures has a significant effect on the quality of tilapia boiled with Balinese spices.
Environmental literacy of biology undergraduate students in Jakarta: Profile and comparative analysis
Authors: Sigit D V , Azrai E P , Setyawati D N , Ichsan I Z 
Published: December 2019

Abstract
Environmental Literacy (EL) was the ability to interpret and take appropriate action on environmental systems that purpose to conserve, restore and improve the environment. This study aimed to determine the EL level of biology undergraduate students. The method used the descriptive method. There was 6 indicators in EL. Data were obtained from 197 samples of the 4th semester of biology undergraduate students in the 2017-2018 from 5 universities in Jakarta which consists of Biology Science program and Biology Education program. The results were level EL of biology undergraduate student in the high category. Based on their majors, the EL of undergraduate students in biology science was higher than undergraduate students in biology education. Differences in EL levels based on gender, female was higher than Male. In conclusion, the Biology undergraduate student’s EL varies from various aspects. The institution has an important role to enhance the student EL. Therefore, a student should increase the EL.
Biosurfactant-producing and anthracene-degrading bacteria from oil contaminated soil
Authors: Kurniati T H , Rusmana I , Suryani A , Mubarik N R 
Published: December 2019

Abstract
Anthracene, together with other polycyclic aromatic hydrocarbons (PAHs), is a persistent and toxic soil contaminant because its low water solubility and high hydrophobicity. The effectiveness of PAH degradation could be enhanced by using biosurfactant. In this study, we isolated bacteria that were able to degrade anthracene and also produce biosurfactant. Samples were taken from oil contaminated soil at Jakarta Bay. Isolation was done in a Minimal Salt Medium (MSM) supplemented with 1% crude oil. Screening methods for biosurfactant production include Blood Hemolysis, Drop Collapse Assay and Oil Displacement Assay. Three isolates which have biosurfactant production and anthracene degradation capability was identified based on 16SrRNA gene. These isolates were identified as Ochrobactrum intermedium AMA9, Ochrobactrum tritici CHA60, and Pseudomonas stutzeri CRA7. Based on GC-MS analysis, Ochrobactrum intermedium AMA9 showed high ability to degrade 84,79% anthracene in liquid MSM medium supplemented by 100 ppm anthracene after seven days incubation.
The effect of vermicompost application on the growth of lettuce plant (Lactuca sativa L.)
Authors: Frasetya B , Harisman K , Maulid S , Ginandjar S 
Published: December 2019

Abstract
The application of salt fertilizer to increase the productivity of lettuce in long term application will decline soil fertility. Implementation of totally organic farming in some region cannot increase productivity rapidly. The application of vermicompost combined with inorganic fertilizer is a solution to overcome decline lettuce production on the first time implementation of the organic farming system. This research aims to study the dose application of vermicompost on the growth of lettuce plant. The research conducted at Cisurupan-Garut West Java Province with altitude 1183 m above sea level from January to March 2018. The method used in this research is randomize block design with seven treatments (A = without vermicompost, B = 5, C = 10, D = 15, E = 20, F = 25, G = 30 t ha-1), and four replication. The growth parameter observed in this research was plant height, number of leaves, fresh plant weight, plant dry weight, and shoot-root ratio. The data observation parameter than analysed with variance analyse at five per cent signification level. The result of this research shows that the application of 5 t ha−1 vermicompost improves plant growth significantly.