bluuebunny/crossref_metadata_2025_split huggingface dataset:
Recovery of public spaces for the conservation of green areas in Tablada Lurin
Authors: Ramos Luis , Esenarro Doris , Rodriguez Ciro , Lagos Jessica 
Published: September 2020

Abstract
This research allows us to show common problems such as the green surface deficit, citizen insecurity, and lack of essential services that reflect social exclusion risks. To the above added the absence of infrastructure of the services provided by these systems such as recreation and recreation. Together, they are essential factors for the valuation of land use. Therefore, it is proposed to develop an analysis of recreational green areas appropriate to the needs of the city. With it, you will facilitate the realization of inventories that estimate social indicators, economic, and environmental indicators. The importance of planning recreational parks is to involve citizen participation as a necessary strategy to solve the problematic situations that arise; inclusive processes must be ensured, especially to meet the demands of spreading vulnerable social groups. It concludes the need to address green planning with a focus on economic, social, and ecological studies that encourage the involvement of society in this task.
Public spaces in Bangkok and the factors affecting the good public space quality in urban areas
Authors: Kongphunphin C , Srivanit M 
Published: September 2020

Abstract
Public spaces are an important component of the urban area used to support public activities. The aim of this study is to evaluate the quality of public spaces where subdivided into districts of Bangkok city area. A methodology is carry out preliminary site surveying in a 31 public parks based on four main good public space indicators, which including accessibility, imageability, usability and sociability. In this study, the Z-score or standard score is defined as a statistical measurement of the associate of site characteristics score, has been apply to determine quality of public spaces. The results reveal that the all of public spaces are outstanding scores in terms of imageability and usability, and their Z-score values are consistently coherent, especially the high-quality public spaces located in the inner zone of Bangkok. While accessibility and sociability factors are poor quality, their values show on some public spaces that mostly located in the middle and in the outer zones of Bangkok. These results can be helpful to given a priority when managing city facilities in the Bangkok’s urban space and maintaining or improving its public space value.
Waste extracts from forest plants and their application as natural coloring for fabrics
Authors: Basri E , Saefudin  
Published: September 2020

Abstract
Wood wastes and tree barks are rich in natural coloring-pigments, such as tannin, flavonoids, and anthocyanins. If extracted, those compounds can be beneficial as coloring agents for fabrics. The research aimed to obtain yields of dry extracts from bark wastes of secang (Caesalpinia sp.), bakau merah (Rhizophora apiculata), ketapang (Terminalia sp.), and mangium (Acacia mangium); as well as from wood wastes of secang and ketapang. Wet extracts were obtained through waste extraction using pure water solvent with waste/water ratio 1:4 and 1:6 (w/v), each implementing of two temperatures (60°C and 70°C) and three long immersion treatments before extracting (0/control, 12, and 24 hours). The obtained wet extracts were applied for coloring the fabrics, followed with 3 fixation treatment, i.e. tawas, kapur tohor, and tunjung; and then tested for color-fastness resistance of fabrics against, i.e. washing, ironing, and sun ray referred to the SNI-ISO standards. The results indicated that bakau minyak barks extract brought out the fabric colors to the best result, and the yield dry extract was the highest. The natural coloring extracts of bakau minyak barks produced the best coloring performance of the fabrics against consecutive washing and sun-ray exposure, that is moderate until good (score 3-4), and the ironing results in good until very good (4-5). The yield dry extract of the barks was 28% after implementing 24 hours immersion in water before extraction, weight ratio between the extracted barks and water at 1:4 (w/v), and extraction temperature at 70°C.
Screening of antioxidant and antidiabetic activity from fruit bark, stem bark and leaves of Gyrinops versteegii (Gilg.) Domke
Authors: Sukito A , Darmawan S , Prihantini A I 
Published: September 2020

Abstract
Agarwood is a commodity that has many benefits for the community, one of which is as medicine. Gyrinops versteegi (Gilg.) Domke, as one of plant producing agarwood and an endemic plant in West Nusa Tenggara, has less information of biological activity. The present study aims to investigate the biological activities from G. versteegii, particularly for anti-oxidants and anti-diabetic activities and their cytotoxicity. The 1,1-diphenyl-2-picrylhydrazyl (DPPH)-radical scavenging activity assay was used to determine the anti-oxidant activity, whereas the α-glucosidase inhibition assay was conducted to determine the antidiabetic activity. The cytotoxicity test used brine shrimp lethality test (BSLT) and phytochemical analysis were also conducted. The highest anti-oxidant and antidiabetic activity was found in the methanol extract of leaves from infected G. versteegii with IC50 values of 32.89±2.7 and 55.01±2.4 μg/mL, respectively. The cytotoxicity test showed high toxicity with the LC50 value of 1.09 μg/mL. Therefore, their high activities showed that those extracts are potent for antioxidant and anti-diabetic agent.
The effect of pre-freezing treatment on the color changes and wettability of teak wood (Tectona grandis Linn.F.)
Authors: Adzkia U , Rahayu I S , Karlinasari L 
Published: September 2020

Abstract
Pre-freezing treatment is one of the methods used for increased the properties of wood. The pre-freezing treatment affects the physical properties of wood, extractive, and surface conditions, this will affect the wettability of wood and wood color. The purpose of this research was to evaluate the effect of pre-freezing treatment on the color changes and changes in contact angle and wettability of wood. The study was conducted on teak wood (Tectona grandis) with the temperature -16°C for 24 hours and 48 hours. The results of this study showed that the pre-freezing treatment made decreasing of brightness with a reduction of the k-value. Besides, the pre-freezing time affected the wettability of wood. The wettability of wood was declined with increased time of pre-freezing. Wood utilization as a raw material of composite needed more treatment to increase the wettability of wood.
The residual stand damages due to log skidding using crawler tractor at one logging company in Central Kalimantan
Authors: Dulsalam  , Sukadaryati  , Soenarno  
Published: September 2020

Abstract
An investigation on residual stand damages due to log skidding using a skidding tractor was carried out at one logging company in Central Kalimantan in 2012. The objective is to find out information about residual stand damages on trees, poles, and sapling caused by Conventional Log Skidding (CLS system) and Low Impact Log Skidding (LILS system). Data on stand potency consists of tree, pole and sapling levels as well as the number of trees felled were collected. The investigation revealed that damage to the level of standing trees, poles, and sapling skidding caused by CLS system at PT Gunung Meranti was 11.40% (Coefficient of variation/CV) 7.95%; 9.53% (CV 14.74%) and 14.84% (CV 16.92%), respectively. The average damage of standing trees, poles and sapling caused by LILS system in PT Gunung Meranti respectively was 9.85% (CV 14.00%); 7.54% (CV 9.81%) and 12,55% (CV 16.60%). LILS system could reduce the damages to the standing trees.
Bamboo, farmer motivation on cultivation and its affecting factors
Authors: Fauziyah E , Sanudin  
Published: September 2020

Abstract
Motivation is an important factor to encourage community on bamboo cultivation or maintain existing bamboo plantation. This study aims to determine farmer motivation on bamboo cultivation and its affecting factors. This research was conducted in Sukaharja Village, Rajadesa Sub-district, Ciamis District, West Java on November 2016. Primary data collection is done through interviews and Focus Group Discussion (FGD) with 30 farmers involved in the development of bamboo agroforestry demonstration plots. The questionnaire consisted of socioeconomic characteristics of farmers and farmers motivations for bamboo cultivation. A survey was conducted to determine the motivation statements of farmers on bamboo cultivation using five-point Likert-type scale from 1 = strongly disagree to 5 = strongly agree. Data analysis was carried out using descriptive methods and Likert’s Summated Rating (SLR). The result showed that farmer motivation on bamboo cultivation in Sukaharja Village was low. The number of family dependents and the number of information sources are affecting farmer motivation on bamboo cultivation. The farmer motivation on bamboo cultivation can be increased through providing a comprehensive information from stakeholders such as research institute, universities and others stakeholder and increasing the added value of bamboo such as post-harvest processing and expanding its marketing network.
Physical properties of furfurylated mangium (Acacia mangium Willd.) and pine (Pinus merkusii Jungh et de Vriese) woods
Authors: Mulyosari D , Hadi Y S , Herliyana E N , Pari G , Pari R , Abdillah I B 
Published: September 2020

AbstractWood from plantation forest contains a lot of sapwood and juvenile wood which has inferior in physical properties. Furfurylation could improve the properties through a reaction between Furfuryl Alcohol (FA) with a hydroxyl group of wood components. The purpose of the study was to improve the physical properties of mangium (Acacia mangiumWilld.) and pine (Pinus merkusiiJungh et de Vriese) woods. The wood specimens for physical properties was prepared according to the ASTM D 143-94. They were vacuumed at 600 mmHg during 30 minutes, when the vacuum has been released, the FA reagent was inserted to the tank and followed with pressure at 10 kg/cm2during 30 minutes. The specimens were wrapped with aluminium foil and heated in the oven at 100°C for 24 hours. After conditioned for three weeks, the specimens were tested for physical properties including Weight Percent Gain (WPG), density, Moisture Content (MC), water absorption, swelling, shrinkage, and anti-swelling efficiency (ASwE) according to the ASTM D 143-94. Untreated specimens were also prepared for comparison purpose with five replications for each treatment. The results showed that furfurylated mangium and pine woods reached WPG 11.34% and 17.74%, densities were increased 8.95% and 3.75%, MC were decreased 88.41% and 84.74%, water absorption were decreased 41.76% and 46.84%, volume swelling were decreased 55.18% and 61.57%, volume shrinkage were decreased 34.99% and 64.75%, respectively. ASwE of mangium and pine woods was 55.1% and 61.6%. It could be mentioned that the furfurylated wood had better physical properties compared to untreated woods.
Effect of combined strip and zephyr laminated bamboo composite on physical and mechanical properties
Authors: Sumardi I , Dungani R , Sulastiningsih I M , Amalia D 
Published: September 2020

AbstractBamboo (Gigantochloa apus) is a potential material for wood substitution. However, the bamboo uses are limited according to the dimensions. Therefore, it needs modification technology such as transform bamboo into laminated bamboo boards. The combination of bamboo strips and zephyr as well as different fiber directions affected the physical and mechanical properties of laminated bamboo boards. The study was carried out onGigantochloa apus, which were made into strip and zephyr manually. Each strip and zephyrs are dried and then formed into a laminated board, then glued using isocyanate adhesive in a double spread with a weight of 300 g/m2. Arrangement of laminated bamboo boards perpendicularly between face/back and core (Ply bamboo) and the parallel between face/back and core (Laminated Bamboo Lumber/LBL). The laminated bamboo board was cold pressed at a pressure of 22.22 kgf/cm2for 1 hour. Physical and mechanical properties have been evaluated. Laminated bamboo boards have an average moisture content and density that meet JAS standards. The face/back of the strip has better dimensional stability value compared to zephyr. The combination of raw materials on the face/back and variations in the direction of the fiber can improve the mechanical properties of the bamboo laminate board.
Field evaluation of subterranean termites palatability on treated pine wood in Alam Sinarsari Residence, West Java
Authors: Arinana  , Hutapea F E , Nandika D , Haneda N F 
Published: September 2020

AbstractPine wood has been commonly utilized as bait wood in controlling termites by using a baiting system. This research aims to evaluate the palatability of subterranean termites against pine wood by boiled treatment, steamed, hot vapor pressured, and oven in Alam Sinarsari Residence, Bogor, West Java, Indonesia and analyze the distribution of termites and identity the termite species that attack bait wood. The size of bait wood refers to ASTM D 1758-06. There were four treatments of bait wood; steam treatment (100°C), boiling treatment (100°C), hot vapor pressure treatment (1 bar and 105°C) for five hours each and oven treatment (103 ± 2°C) for 48 hours. As a comparison, bait wood without treatment was prepared as a control. The result showed that bait wood using boiling treatment had more active subterranean termites than others. The identification result showed that there were 4 species of subterranean species (Macrotermessp.,Odontotermessp.,Microtermessp., andSchedorhinotermessp). The highest frequency of termites attack was in bait wood using oven treatment, and the highest damage intensity was in hot vapor pressure treatment. Based on the rating system the best treatment for bait wood treatment is hot vapor pressure treatment and boiling.
The grading classification for Styrax sumatrana resins based on physico chemical characteristics using two-step cluster analysis
Authors: Aswandi A , Kholibrina C R 
Published: September 2020

Abstract
Non timber forest management of styrax resin has become the main community livelihood in the Tapanuli region, North Sumatra, Indonesia. However, thousands of tons of incense resin produced have not been graded simply and inaccurately. The resin grading has been determined visually based on shape, size, and color. This is a disadvantage regarding the important value of this commodity is its chemical content. The objectives of the study were (a) to investigate the physico chemical properties of styrax resin based on current local grading, and (b) to develop a new grading classification of Sumatran incense (Styrax sumatrana) resin. A completely random design was carried out to determine the physico chemical properties of styrax from six incense grade traded. The results showed that the current quality grading affects the physico chemical properties of the resin. The first grade contains the best physico chemical properties, conversely the sixth is the lowest among others. Isolated cinnamic acid from various grades produces different levels of purity. The highest balsamic acid content and purity were derived from the highest quality incense (current local Grade I) while the lowest was contained by Grade VI. A two-step cluster analysis was performed to identify an accurate classification of resin grade according to both numerical and categorical attributes. Clustering algorithms with the two-step method worked efficiently and determined the optimal number of clusters, four grade incense profiles. The most important grade contains higher balsamic content and purity, lower impurities, ash content, melting point, and moisture content. Ash content and impurities were the most important predictor for differentiating each segment. The information obtained is expected to facilitate more accurate and honest resin quality grading application for farmers and traders.
Some properties of laminated veneer lumber manufactured from oil palm trunk
Authors: Sulastiningsih I M , Trisatya D R , Balfas J 
Published: September 2020

AbstractIndonesia is the largest oil palm producer in the world and it was predicted that around 7 million metric tons was left in the field as a replanting waste, including palm frond and trunk. The utilization of this waste as a raw material of composite products may overcome the problem. The objective of this study was to determine the physical and mechanical properties of Laminated Veneer Lumber (LVL) made of oil palm trunk. Laboratory scale five-ply LVLs glued with urea formaldehyde adhesive were fabricated with five types of layer compositions i.e five-ply LVL with all layers made of oil palm trunk veneers (OP), five-ply LVL with face and back layers made of jabon veneers (J2), five-ply LVL with face, back and center core layers made of jabon veneers (J3), five-ply LVL with face and back layers made of mahoni veneers (M2), and five-ply LVL with face, back and center core layers made of mahoni veneers (M3). Results showed that the physical and mechanical properties of laminated veneer lumbers made from oil palm trunk were affected by layer compositions. Incorporating jabon or mahoni wood veneers in the structure of oil palm LVL improved the physical and mechanical properties of LVL.
Fiber dimension and anatomy of Acacia mangium wood from two mother trees
Authors: Andianto  , Yuniarti K , Saputra N A , Saputra I S 
Published: September 2020

Abstract
Mangium (Acacia mangium) has been opted as one of potential species for the establishment of industrial timber estate in Indonesia, particularly to support the production of pulp and paper. In order to obtain mangium stands that produces high quality wood, one attempt can be carried out through the selection and development of potential mother trees from the selected provenances. This study aim to obtain information on fiber dimension and the anatomy of mangium wood from two different mother trees from Papua New Guinea provenance. The wood was collected from mangium estate in Wonogiri forest research which was established in 2012 and managed by the Center Forest Biotechnology and Tree Improvement. Maceration process followed Forest Product Laboratory guidance and the preparat preparation followed Sass method. The wood anatomical terminology referred to IAWA (International Association of Wood Anatomists) list of microscopic features for hardwood identification was used to scrutinize the samples. The results showed that the average fiber dimension of mangium from the mother tree group 1 was 1239 micron (length), 25.96 micron (fiber diameter), and 3.67 micron (cell wall thickness). Those from the mother tree group 2 posseses the dimension as follow: 1215 micron (length), 25.42 micron (fiber diameter), and 3.73 micron (cell wall thickness). The fiber quality of mangium fiber from both mother tree groups could be considered in the quality class II. The anatomical structure of mangium from both mother tree groups include vessels cells in radial multiples radial multiple of 2-3 or 4 cells; vestured intervessel pits; parenchyma vascicentric and aliform; all ray cells procumbent and prismatic crystals in chambered axial parenchyma cells.
Polymerised merbau extractives as impregnating material for wood properties enhancement
Authors: Malik J , Santoso A , Ozarska B 
Published: September 2020

AbstractThis study aimed to investigate the polymerisation process of Merbau extractives (ME) and the characteristics of the phenolic resin polymers made from ME. These polymerised ME (PME) can potentially be utilised as an impregnating material to enhance the wood properties of young plantation timber. Selected PME were characterised via Fourier transform infrared (FTIR) spectroscopy, differential scanning calorimetry, thermogravimetric analysis, X-ray diffraction analysis, and ultraviolet-visible analysis. The prediction of the enhancement to the wood properties when treated with the obtained PME was discussed in relation to the physico-chemical and thermal characteristics of the polymeric materials. The results showed that the ME can be polymerised in its base condition with formaldehyde and resorcinol as the copolymer to produce the PME. The resin was classified as a resole and polymerisation can be done at room temperature. The physico-chemical tests and analyses, via boiling tests and FTIR spectra confirmed that the polymeric compound is a promising impregnating material that can enhance wood properties. This polymeric material is also eco-friendly as the low level of free formaldehyde.
Utilization of biomass from Sago (Metroxylon sp) by local ethnic around the Sentani Lake Jayapura-Papua Province
Authors: Ondikeleuw YC , Wahyudi  , Arifudin M 
Published: September 2020

Abstract
Sago is multi-functional crops for local ethnics living at coastal and low land areas in Papua as main carbohydrate and raw-material of traditional houses. This research is designed to document the utilization and socio cultural values of sago biomass by local ethnic around the Sentani Lake, Jayapura. Field survey and structural interview were used to collect data at Yoboi and Sereh villages. The results indicate that carbohydrates were extracted from pith and other sago’s biomasses were used for green material for various puIDRoses. Leaf are for floor mate, filter starch, carrying bags, housing roof and fishing trap. Sago fronds are for extraction chamber and sedimented starch. Rounded fronds are used for house wall, burning media for lime stone and planting media boxes. Bark of trunks are for flooring and decking their stilts, balcony and firewood. Residual waste from sago pulp are good media for mushroom, planting vegetables, imago inhibitor, and compost. Its fruits are for wall accessories and necklace. Sago lands is also supply animal protein by providing habitat for hunting animals. Socio cultural values mean that sago is ancestor heritage to be saved, utilized, managed proportionally for next generation. This crop is cultural identity contributed to socio cultural and economic values, but these wisdom values are pressuring recently.
DNA barcoding of Pericopsis mooniana from two different populations in Indonesia based on rDNA ITS (Internal Transcribed Spacer)
Authors: Prihatini I , Widyatmoko A Y P B C , Nurtjahjaningsih I L G , Yuskianti V , Danarto S A 
Published: September 2020

AbstractA DNA barcoding is a taxonomy method that provide fast and acurate species identification, thus it can be applied to anticipate when a species can not be identified morphologically. This study aimed to assess molecular characteristics ofPericopsis moonianafrom two wild populations in Indonesia using a barcoding marker rDNA ITS (Internal Transcribed Spacer) as additional information for establishing conservation strategy of this species. Leaf samples ofP. moonianawere collected from natural forests at South East Sulawesi and South Kalimantan, and a germplasm orchard at Purwodadi Botanic Garden. Molecular characteristic was evaluated based on a pair of ITS primers that produce between 634-641 bp nucleotide. The sequence data were analyzed by Bioedit version 7.0.5.3 and Mega 7 software. Results showed thatP. moonianafrom South East Sulawesi and South Kalimantan were clustered together, whileP. moonianafrom Purwodadi Botanic Garden were separated with only one base difference from those two population. In conclusion, ITS barcoding in this study shows a diffences betweenP. moonianacollected from South East Sulawesi and South Kalimantan withP. moonianathat originally from Papua. A further study using more barcoding marker and more population could be approached to obtain more information on molecular characters ofP. moonianapopulations that will useful for establishing conservation and tree breeding program of this species.