bluuebunny/crossref_metadata_2025_split huggingface dataset:
Oil Spill in Pulau Rambut and its possible long-term impact on mangrove as waterbirds habitat
Authors: Mardiastuti Ani , Mulyani Yeni A. , Susanti Ni Kadek Y. , Ivonnie Regia N. , Oktavia Aurora C. 
Published: July 2020

Abstract
In July 2019, an oil spill incident in the northern West Java has reached Pulau Rambut, a Wildlife Sanctuary dedicated for waterbird in Jakarta Bay, Indonesia. The objective of this paper was to record the number of mangrove trees exposed to the oil spill, and provide desk-study analysis of the possible long-term impact of the mangrove. Field visit were conducted on 19 and 22 August. Trees along waterways were examined, plots were stablished in the exposed and non-exposed area. The rhizophores of all trees (n=26) along waterways were covered by the sticky-melted crude-oil, while some leaves were also covered. In the exposed areas, 47 trees (63.51%) were covered by oil, either heavily or partially. For the younger trees, 43.08% poles, 78.74% saplings and 67.35% seedlings were oiled. Desk-study suggested that death of mangrove was not instant, up to one year after the incident for seedlings/sapling. Structural damage of mature trees happened in year-3. Trees and their ecosystem will stabilize in year-5, and recovery can be expected in year-9. As the trees are extremely important for waterbirds, a continuous monitoring of mangrove health need to be conducted to ensure that the waterbirds will not lose their nesting habitat in the future.
Livelihood adaptation patterns of sub villages community in the slope of Merapi Volcano
Authors: Umaya R , Hardjanto  , Soekmadi R , Sunito S 
Published: July 2020

Abstract
The dynamic eruption of Mount Merapi of Merapi National Park has partially changed the slope condition due to differences in the direction and scale of the eruption. National park boundary affecting the vary distance of the sub villages to the top of the mountain that influence to physical condition. This study examines the livelihood adaptation patterns of sub villages community in the slopes of Merapi. A mixed method between Geographic Information System and ethnography was used to explore the changes in physical and social conditions of the sub-villages. The study was conducted in 27 sub villages, interviewed 277 respondents and 62 key informants, field observations and study literatures. The results showed varied livelihood adaptation patterns, namely 1) the west-southwest, area most affected by pyroclastic flow (>20 times), the community have accumulated knowledge of eruption. Mining and Sallaca edulis plantation were the dominant livelihoods2) the south-southeast, area was severely affected by eruptions and largest eruption in the past 140 years. Variety of livelihoods including livestock, farming, tourism activities and mining. The 2010 eruption has changed the ecosystem and economic sources, resulting in the shift of a part livelihood from livestock farming to tourism services. and 3) the north-east, north area was exposed by pyroclastic flows twice, and east was never directly exposed. The vulnerability of ecosystem and economic sources were low, while accumulation of community’s knowledge has not changed over a long period of time. Livestock and farming were dominant, The communities have opportunity to develop complex and advanced agricultural systems. Nevertheless the physical conditions have led to underdeveloped livestock farming systems.
Comparison of species diversity of butterflies between burnt and unburnt land at various levels of post-burnt land age in Mount Ciremai National Park
Authors: Masy’ud B , Puteri A N , Ginoga L N 
Published: July 2020

Abstract
Forest fires occur almost every year in some locations in Indonesia, including in Mount Ciremai National Park (TNGC). Different age of land due to fire is believed to affect its biodiversity including the losses and gains of butterfly species. The study aims to estimate the diversity and composition of butterfly species and estimate the loss and gain of butterflies due to fire at different levels of post-burnt land age. The study was conducted on April 1st to May 21st, 2019 at three locations of burnt land with different ages (1, 2, and 4 years post-burnt). The Pollard Transect Method was used to estimate and analyze the species number of butterflies, the Margalef richness index, species diversity index, and species evenness index. The referential habitat as the basic approach was used to determine the losses and gains of butterfly species in each land. The results showed that there were 76 species of butterflies in all land, the highest index of Margalef was found on 2-year-old of burnt land, the highest index of diversity on 1-year-old of burnt land, and index of Evenness close to 1. The highest gains of diversity due to fire was found on 4-year-old of burnt land at 84.21% while the highest losses of diversity due to fire on 2-year-old of burnt land at 45.71%. In conclusion, there are differences in species diversity, losses, and gains of butterflies at various levels of post-burnt land age in Mount Ciremai National Park.
Ethnobotanical Study of Local Knowledge on Plant Used to Batten Materials Plants in Inner-Baduy Tribe, Indonesia
Authors: Fakhrurrozi O , Nisyawati N , Silalahi M 
Published: July 2020

Abstract
A study investigated the knowledge and utilization of building material plants in Inner-Baduy community. Data was collected from July to August 2019 by using ethnobotany approach through semi-structured interviews. Respondents consisted key informants and general respondents were interviewed in the three village of Inner-Baduy. A total of 20 genus and 21 species of plants distributed in 13 families were identified as commonly used house materials plants by Inner Baduy community for indigenous house. Documenting the batten materials plants and associated local knowledge can be used to conserve and sustain the utilization of batten materials plants in Inner-Baduy community.
Sustainable business potential survey at Desa Cileuksa of West Java, Indonesia using an ethnobiological approach
Authors: Hidayati S , Zuhud E A M , Vesma B , Agus F , Prabowo E D , Herlangga R E , Salimah W , Puspitasari P 
Published: July 2020

Abstract
Cileuksa is one of the developing villages in West Java- Indonesia, with local biological resources that have not been optimally promoted. To discover the business potential of existing resources at Desa Cileuksa, a survey of business potential was conducted. The survey involved 32 respondents (adult) from 14 hamlets. The activity was divided into 2 (two) phases, phase I is an activity carried out directly in the village of Cileuksa consisting of surveys of natural resource potentials using ethnobiological approach and surveys of the socio-economic potential of the community in business development in the village of Cileuksa and phase II was recommendations analysis using descriptive analysis. The results found seven potential local resource-based business groups that had already been developed and could become the main business of the villagers. There were several other potential business commodities that could be further developed in Desa Cileuksa such as padi (Oryza sativa), pisang (Musa paradisiaca), ayam kampung (Gallus gallus), manggis (Garcinia mangostana), durian (Durio zibethinus), domba (Ovis aries), cabai (Capsicum annuum), kerbau (Bubalus bubalis), kayu afrika (Maesopsis eminii), and jeunjing (Falcataria moluccana). Generally, Desa Cileuksa’s products were sold to middlemen, due to market certainty.
The Behaviour of Tourism Actors in Sembalun towards Hazards and Disasters in Gunung Rinjani National Park
Authors: Muntasib E K S H , Aulia L , Sunkar A 
Published: July 2020

Abstract
Mount Rinjani is the second-highest volcano that has caldera, craters, lakes, hot springs, savannahs, and other beauties. It is the most visited tourist destination in Lombok that visited by domestic and international tourists. Despite its beauty, the Mount Rinjani region is in a natural hazard area both hydrometeorological and geological disasters, so that it becomes a disaster-prone area. Considering the vital role of tourism actors in the continuity of safe tourism activities, the research about awareness of disaster-prone area is needed. The awareness is formed through perception, alertness attitudes, and preparedness behavior. This research aims to identify perceptions, attitudes, and behaviors of tourism actors towards hazards and disasters. The method that we used in this research is an interview, field observation, and literature study. Perceptions of tourism actors towards hazards are generally classified in the moderate category, while perceptions of disasters are generally classified as good. The attitude of tourism actors towards hazards is generally classified in the moderate category, while the attitude towards disasters is classified in good categories for agencies and moderate for tourism actors. The behavior of tourism actors towards hazards is generally classified in the moderate category, and behavior towards disasters also is generally classified in the moderate category.
System Development for Land Cover and Deforestation Area Estimation due to Forest and Land Fires
Authors: Herlambang N W , Zaki W F , Sitanggang I S , Agmalaro M A 
Published: July 2020

Abstract
Forest and land fire is one of the causes of peatlands deforestation. Forest and land fire occurred at the beginning of land clearing activities for land conversion known as Land Use, Land Use Change and Forestry (LULUCF). Spatio-temporal data mining technique can be used for estimation of deforested peatland area and its association with forest and land fire. The previous study has compared two classified Landsat 8 images in order to estimate the land cover change in Rokan Hilir district, Riau Province. This research aims to develop an application to automate peatland deforestation estimation due to the forest and land fire using the Shiny framework in R programming language. The data used are Landsat 8 images in 2014 and 2016 of Riau Province and MODIS burned area data product (MCD64A1) image in 2015 of Riau Province. The system was developed using Adaptive Software Development (ASD) method. The main features of the system are land cover area comparison and land cover changes due to forest and land fire calculation. The testing results show that both of the features are successfully implemented. With the automation system in estimating deforestation of peatlands due to forest and land fire, the proses of estimating deforestation levels in peatlands in relation to forest and land fire can easily be done.
Diversity of Flora as Affected by Time Consequences of Revegetation Age in Post Coal Mine Area at PT Berau Coal Tbk, East Kalimantan Indonesia
Authors: Salim M A , Budi SW , Setyaningsih L , Iskandar  , Kirmi H 
Published: July 2020

Abstract
This study aims to examine the diversity of flora in various age classes of revegetation of post-mining coal. This research was conducted at PT. Berau Coal, Binungan block, East Kalimantan. Sampling plots were applied on revegetation land of post-mining coal aged 0, 2, 4, 6, 8 and 10 years, and natural forest as a control. Flora observations were carried out on sample plots of size 25m x 40m for sapling, poles and trees, while sub-plots 1m x 1m for seedlings and understorey. In natural forests observations were made on sample plots measuring 20m x 20m for trees with sub plot 2m x 2m for uderstorey and seedlings, 5m x 5m for saplings, 10m x 10m for poles. The analysis results show that the highest individual density per ha is found in natural forests (seedlings, saplings and poles). The highest of flora index of diversity, richness and evenness were found in natural forests. The flora from revegetation of eight-year has been able to approach to natural forests conditions. The species of plants that predominate in some revegetation age classes are Rhynchospora corymbose (understorey), Senna siamea (seedling, sapling, pole and tree). Acacia mangium and Macarangan hypleoca grow naturally in some revegetation age.
Techno-economic and Supply Chain Analysis of Nano Tea Made from Mangosteen Peel as Functional Food
Authors: Isnasari Y , Nasution S Y , Ratnasari D 
Published: July 2020

Abstract
This study aims is to examine the availability of raw material to produce the Mangosteen Peel Nano Tea and to validate the economic value of it on a business scale. In Indonesia, Mangosteen is mostly produced in the West Java Province. As for the process of utilizing mangosteen peel into nano tea, it requires at least seven processes in production. We used five methods to find the economic value, namely Payback Period (PP), Average Rate Return (ARR), Net Present Value (NPV), Internal Rate of Return (IRR), and Profitability Index (PI). The results of this study are PP was one year and 11 months; ARR was 137%; NPV was IDR 3,079,664,331; IRR was 38.35% which is greater than the rate of return; and PI worth 1.36. These results show that the utilisation of mangosteen peel can be a profitable business.
Anatomical characterization of wood decay patterns in Hevea brasiliensis and Pinus merkusii caused by white-rot fungi: Polyporus arcularius and Pycnoporus sanguineus
Authors: Diandari A F , Djarwanto  , Dewi L M , Iriawati  
Published: July 2020

AbstractBiological pulping is an environmentally friendly process for making pulp and paper whereby the wood raw material is pre-treated with selective delignifying white-rot fungi. Therefore, the purpose of this study is to determine the decay patterns of white-rot fungiPolyporus arculariusandPycnoporus sanguineus, as well as its ability to decayHevea brasiliensis(as hardwood) andPinus merkusii(as softwood) by observing the anatomical characteristics. Fungal attack testing on wood was carried out by the Kolle-flask method with a variation of 6, 9, and 12 weeks incubation time. The structure of wood cells was analyzed using wood incision method, followed by a combination of safranin-picro aniline blue and safranin-astra blue, and maceration method. The results showed thatH. brasiliensiswood has a higher percentage of weight loss thanP. merkusiiwood. Wood attacked byP. sanguineusshowed a higher weight loss compared to theP. arcularius. The decay pattern ofP. sanguineusinfected wood was concluded as selective delignification inP. merkusiiand simultaneous delignification inH. brasiliensiswhile those infected withP. arculariusboth performed simultaneous delignification. In the early stages of decay, selective delignification is characterized by the formation of intercellular space due to degradation of lignin in the middle lamella, while simultaneous delignification is characterized by cell wall thinning. The anatomical structure ofH. brasiliensisattacked by the white-rot fungi showed differences withP.merkusii, whereby the ray cells ofP.merkusiiwood was more degraded than inH. brasiliensis.
Clustering Pollutants Concentration from Sumatra Peat Fire using Fuzzy C-Means Algorithm
Authors: Rahmat Hanif , Sukaesih Sitanggang Imas 
Published: July 2020

Abstract
Indonesia has large peatland areas which can significantly impact both regional and global environments. The forest and land fire in 2015 produced high level of air pollutants concentration in Sumatra, especially in South Sumatra, Riau, and Jambi provinces. This study aims to cluster pollutants concentration from peat fires in Sumatra during July until November 2015 using fuzzy c-means algorithm. The dataset used in this study is concentration of pollutants including CH4, CO, CO2, NH3 and PM2.5. Based on the experimental result, pollutants concentration data are grouped into 8 clusters. The result of this study indicates that the highest pollutants concentration is found in the cluster which has only one member with concentration 14,500 µg/m3 of CH4, 145,980 µg/m3 of CO, 1,183,831 µg/m3 of CO2, 13,800 µg/m3 of NH3 and 6,290 µg/m3 of PM2.5. Another cluster containing high concentration has 6 objects representing haze locations with the average concentration 8,265 µg/m3 of CH4, 83,427 µg/m3 of CO, 676,558 µg/m3 of CO2, 7,913 µg/m3 of NH3, and 3,597 µg/m3 of PM2.5. The largest cluster with 590,816 haze locations contains the lowest concentration of pollutants. Although its average concentration levels are low, yet the maximum concentration are still in moderate or high enough levels. In general, high concentration of pollutants was distributed mostly in South Sumatra, Jambi, and Riau.
Is agro-ecotourism approach a potential to support climate change mitigation?
Authors: Suryandari R T , Wicaksono R L , Agustina A 
Published: July 2020

Abstract
Indonesia is one of the biggest contributors to greenhouse emission globally. The trigger of such contributions can be traced to Land Use, Land Use Change, and Forestry (LULUCF). The problem of deforestation is complex, involving social, economic and political sectors. On the other hand, a holistic approach has not been widely discussed and implemented. This paper attempts to review and aims at providing potential answer on how to manage the forest and its relations with people in order to combat forest destruction caused by people. We believed that managing such relationship is the key to maintain the sustainability of the forest while keeping its roles and sustainability. Literature review was employed to develop a problem framework, and to develop alternatives in bridging the relationships between forest and local community. Collecting relevant literatures using keywords such as “forest and climate change mitigation”, “agroforestry and climate change”, “ecotourism and climate change”, and “agroforestry and ecotourism”, 96 articles were found. Further, through matching the content and the research goals of the articles, 13 articles were selected for further content analysis. We proposed agro-ecotourism as the alternative answer that can be pursued to balance the relationship between forest and people, especially in putting forest as an important partner rather than an exploitable asset. Hence, agro-ecotourism may help to increase the awareness among local community on the critical roles of the forest in the long term to fight against climate changes.
Characteristics of forest and land fires in Baluran National Park, Situbondo Regency, East Java
Authors: Maulana F A , Rushayati S B , Setiawan Y 
Published: July 2020

Abstract
Fire events of Baluran National Park occured periodically in the dry season. The impacts of the fires was a changes in physical, chemical and biological aspects of the ecosystem that can be illustrated as the fire severity. Important information for habitat management, is vegetation and air temperature as biological and physical aspects. This study aims to identify burned areas and classes of fire severity and to explain the character of fires based vegetation’s aspects and air temperature during the fire periods. The character of the fires was described by analysis of normalized burn ratio (NBR), normalized difference vegetation index (NDVI), and the calculation of air temperature under conditions prefires, postfires, and the delta’s value. Burned areas in Baluran National Park were identified as 1798.92 ha which classified into fire severity class as low class (1252.71 ha), medium class (543.79 ha), and severe class (2.43 ha). Savanna has a value of dNDVI of 0.2543 which is caused by logging acacia wood for firewood and dNBR of 0.0677 that indicated by burning by the local people for grass growth as livestock’s feed. Changes in the air temperature of the savanna of 8.6 0C. Increasing of air temperature is followed by decreasing of vegetation index (dNDVI an dNBR), but changes in air temperature tend to follow the dNBR’s trend rather than the dNDVI’s trend.
Design of the H∞ regulator for the control of glucose concentration in patients with first type diabetes
Authors: Sherif Sherif , Kralev Jordan , Slavov Tsonyo , Kunchev Veselin 
Published: July 2020

Abstract
Glucose is a basic source of energy for the living organism and is assimilated by tissues with the help of insulin receptors attached to the cell membrane. A lot of research has focused on improvement the quality of regulation of glucose concentration by applying modern methods of control theory. Mathematical descriptions of glucose and insulin metabolism are nonlinear processes with uncertainty in parameters. Therefore article is purposed at creating a corresponding simulation model, which would allow the research different approaches to controlling blood glucose levels in the presence of disturbances due from the acceptance of nutrients, physical activity and parametric uncertainty.
Methods for object recognition and classification for tele-controlled service robots
Authors: Ivanov Angel , Chivarov Nayden 
Published: July 2020

Abstract
The need of personal service robots has been increased in the past several years. The tasks assigned to the robots vary in complexity and degree of freedom. In order to assist senior citizens and people with disabilities with their day to day tasks, a greater degree of freedom is required – more autonomy, ability to fulfil more complex tasks and easier for use human-machine interface. In this paper we show some of the methods that can be implemented in personal service robots for object recognition and classification in order to achieve greater autonomy, hence greater degree of freedom.
ERP systems and data security
Authors: Hrischev Radoslav 
Published: July 2020

Abstract
Enterprise Resource Planning (ERP) integrates all business processes in the organization. Therefore, data security is the main point of security in ERP systems. Most of the biggest ERP developers have already implemented specialized hardware and software security solutions. New ITC technologies – cloud computing, IoT, blockchain are opportunities to make the ERP highly integrated, more intelligent, more flexible, cloud based. The fast growing of the e-business is making ERP systems more open and new decisions are needed to be granted information security. This paper introduces ERP technology regarding the data security point of view. New security solutions for ERP systems are present.
Research and analysis of modern space heating technologies and management for industrial buildings
Authors: Yosifova V , Chikurtev D , Petrov R 
Published: July 2020

Abstract
The paper observes different modern space heating technologies suitable for industrial buildings. Their main working principles and applications are researched related to their energy efficiency. The problems about heating of large scale spaces in industry are observed. A compartment analysis between the technologies is carried out with their advantages and disadvantages.
Proactive compensation of electric power imbalance in day-ahead market
Authors: Angelov Alexander , Shakev Nikola , Ganev Georgi 
Published: July 2020

Abstract
The precise planning of production and demand schedules is essential for the stability of the energy system. For this purpose, various economic incentives have been developed and implemented that encourage accurate adherence to the pre-registered schedules. In order to respond to the strictly following of the schedules a proactive compensation of electric power imbalance in day-ahead market is suggested. An original methodology for parameter estimation of the Imbalance Compensation System is proposed and experimental results are reported.
Study of four-spring electromagnetic harvesters
Authors: Georgiev N P , Raychev R P 
Published: July 2020

Abstract
The article considers electromagnetic harvesters, consisting of a metal plate, fixed on four springs at their lower end, and having 2 or 4 magnets. A coil is located above the magnets. Modeling by ANSYS has been done, and the horizontal deviation of the mechanical system has been obtained. With the help of FEMM, the magnetic field of the electromagnetic harvesters has been modeled and their electromotive force has been determined. Experimental studies have been performed to verify the modeling. The influence of the construction parameters on the output electric features of the studied harvesters has been considered.