bluuebunny/crossref_metadata_2025_split huggingface dataset:
Influence of NaFeEDTA fortification in soy milk on hemoglobin levels in male Sprague-Dawley rats (Rattus norvegicus L.)
Authors: Imantaka G M , Anita N , Zulys A , Setiorini  
Published: April 2020

Abstract
In this study, we investigated the influence of the fortification of soy milk with NaFeEDTA on blood hemoglobin levels in male Sprague Dawley rats (Rattus norvegicus L.). Using a completely randomized design, 25 rats were divided into five groups. A normal control group was administered standard feeding without the addition of soy milk and fortificant, whereas a treatment control group was administered soy milk without fortificant; three treatment groups were administered soy milk fortified with the following doses of NaFeEDTA: 2.7 mg Fe/kg bw (treatment group 1), 5.4 mg Fe/kg bw (treatment group 2), and 10.8 mg Fe/kg bw (treatment group 3). The five groups were consecutively treated for 21 days. Rat blood hemoglobin measurements were performed using a hematology analyzer. The results of one-way ANOVA and least significant difference tests demonstrated that after the 21-day consecutive treatment, there was a significant influence on the blood hemoglobin levels in all treatment groups when compared with treatment group 1, whereas treatment groups 2 and 3 exerted a significant influence on the blood hemoglobin levels when compared with the treatment control group. The highest increase in the blood hemoglobin levels was detected in treatment group 2, which was a 10.84 % increase from the normal control group and 9.28 % increase from the treatment control group.
Effect of salam (Syzygium polyanthum Wight. Walp.) leaf extract on spermatozoa motility in ethanol-induced mice
Authors: Aulia T D , Salamah A 
Published: April 2020

Abstract
Decreased quality of spermatozoa can occur because of the formation of free radicals resulting from ethanol induction. Salam [Syzygium polyanthum (Wight.) Walp.] leaves have been reported to have antioxidant activity. However, it is not known whether this antioxidant activity can overcome the decline in spermatozoa motility. Therefore, a study was conducted to investigate the effects of ethanol extracts obtained from salam leaves on spermatozoa motility in ethanol-induced mice (Mus musculus L.). Animals were divided into 5 groups. The normal control group (KK1) was not treated and the treatment control group (KK2) was administered with 0.5 % carboxy methyl cellulose (CMC) and ethanol (40 % v/v) at 2.8 g/kg body weight (bw). Ethanolic extracts of salam leaves at doses of 43.75, 87.5 and 175 mg/kg bw were orally administered into the mice in treated group 1 (KP1), treated group 2 (KP2), and treated group 3 (KP3), respectively. All treated mice were induced daily by ethanol per oral (p.o) at a dose of 2.8 g/kg bw (40 % v/v). The treatment was given for 20 consecutive days. The results of LSD testing showed that ethanol extracts of salam leaves resulted in significantly (P < 0.05) higher percentages of spermatozoa motility. Compared to the mice of the KK2 group (44.88 % ± 3.40 %), the spermatozoa motility of all treated groups (KP1 56.97 % ± 2.66 %; KP2 58.19 % ± 5.33 %; KP3 53.77 % ± 4.00 %) showed higher percentages of motility.
Population studies of Cerithidea obtusa (Lamarck 1822) in mangrove forest Pangkal Babu, Tanjung Jabung Barat, Jambi
Authors: Rusnaningsih  , Patria M P 
Published: April 2020

AbstractSnailCerithidea obtusahas an important role in the mangrove ecosystem as a decomposer and this species generally serve as food in some Southeast Asian countries, especially in Indonesia. The research of the population studies the snail in the mangrove forest of Pangkal Babu was conducted in January to February 2012. In conducting the research, we divided the sites into 3 stations by using the Purposive Random Sampling. The average of density population ranges between 3.87–7.87 ind/m2. The highest of average density population was founded in station 3, which was located in the back of the mangrove forest. It was dominated by plants ofAvicenniasp. andRhizophorasp. The snail has cluster spreading pattern. The shell length was measured between 1.8–4.4 cm, the weight was between 0.38–1.8 grams, and biomass ranges from 0.3–1.8 grams. The Spearman correlation test results indicated there was no correlation between the density ofC. obtusaand abiotic parameters.
The effect of NaFeEDTA-fortified soy milk on the red blood cell counts of male Sprague Dawley rats (Rattus norvegicus L.)
Authors: Wulandari D , Anita N , Zulys A , Setiorini  
Published: April 2020

Abstract
This study explored the effect of NaFeEDTA-fortified soy milk on red blood cell counts of male Sprague-Dawley rats (Rattus norvegicus L.). Using a completely randomized design (CRD), 25 rats were divided into five groups: the normal control group, which received standard food and water without the addition of soy milk or fortificant; treatment control group, which received extra soy milk without fortificant; and three treatment groups, which received extra soy milk containing NaFeEDTA as a fortificant at 2.7 (treatment group 1), 5.4 (treatment group 2) and 10.8 mg Fe/kg bodyweight (treatment group 3). All the five groups were treated for 21 consecutive days. Rat red blood cell counts were measured using a hematology analyzer. Oneway ANOVA and the least significant difference post hoc test showed that after 21 days of consecutive treatment, there was a significant effect on the red blood cell count in all the treatment groups compared with the normal control and treatment control groups. The highest increase in the red blood cell count was detected in treatment group 2 at t21, with a 19.70 % increase compared with the normal control group and 17.27 % compared with the treatment control group.
Characterization of sandstone reservoir field “Q” sub-basin Jambi using the extended elastic impedance seismic inversion method
Authors: Debora I , Rosid M S , Riyanto A 
Published: April 2020

Abstract
The extended elastic impedance (EEI) inversion method is a seismic inversion technique that can optimally predict the character of a hydrocarbon reservoir using expansion of the incident angle from -90° to +90°. In the study of Field “Q” Sub–Basin Jambi, EEI was used to characterize a sandstone reservoir and predict the existence of gas or oil using the parameters Vp/Vs ratio, lambda–rho, and mu–rho. EEI was performed to determine the maximum correlation value at the optimum chi (χ) angle for each parameter specified by the correlation between the target logs and the EEI logs. The optimum chi (χ) angle was used to create a scaled volume reflectivity that was then used to make an initial model, which was required in the inversion process. Inversion was performed using a post–stack inversion–based model. The inversion results were then used to determine the spread of the reservoir, with the results indicating the possibility of a reservoir containing gas and oil. In this study, the Vp/Vs ratio ranged between 16 and 18, the mu–rho values ranged between 25 and 35 GPa*(g/cc), and the lambda–rho values ranged between 20 and 22 GPa*(g/cc) for gas and between 25 and 27 GPa*(g/cc) for oil.
Identification of the structural trap of the hydrocarbon reservoir below volcanic rocks in Majalengka region, Indonesia, using the audio-magnetotelluric method
Authors: Alfiansyah M T , Supriyanto  
Published: April 2020

Abstract
The exploration of hydrocarbons below volcanic rock is a significant challenge in increasing oil and gas reserves in Indonesia. Because mapping using seismic waves does not produce data of good quality in areas of volcanic rock, in this study, the audio-magnetotelluric (AMT) method was used to map the structural trap of a hydrocarbon reservoir. Geophysical surveys were also used to determine the subsurface resistivity values and phase values. The raw data were in the form of time series measurement obtained using equipment from Phoenix Geophysics. The data were processed further into apparent resistivity and phase curves toward frequency. Data processing involved various filtering methods and corrections. The result was a two-dimensional cross-section of the AMT measurement line. The data from the AMT model were interpreted in an integrated manner using geological data. The results showed a relatively good relationship between the AMT data and the geological data. The results indicate a fault zone in the area of measurement and bedding formations that have produced a petroleum system. The lower part of the Cinambo Formation, which consists of shale-dark, acts as a source rock. While the upper part of the Cinambo Formation which consists of massive sandstone with very fine sand to silty above the shale-dark is thought to be a reservoir. The hydrocarbon trap could be of the structural type because there is a fault zone in the area of measurement.
Development of seismic acquisition instrumentation system based MEMS accelerometer using SPI communication with Raspberry Pi
Authors: Arrosyid S , Wijaya S K , Supriyanto  
Published: April 2020

Abstract
The background of this research concerned to the operational cost and human resources to conduct seismic data surveys. In seismic surveys, the tools and cables are very heavy and need very long cables, so they spend a lot of cost and resources. Based on those reasons, an improvement of Geophone technology for data acquisition was needed in this study to reduce cost and resources. Accelerometer based on MEMS technology was proposed to replace a conventional geophone to reduce costs and human resources. In previous research, a study of seismic signal acquisition instrumentation based on MEMS accelerometer sensor could acquire only two geophones. In this study has renewed seismic signal accelerometer by communication aspect to acquire more geophones or seismic signal acquisition instrumentation. So, it would be more efficient and reduce cost and need fewer resources. The hypothesis is Output data of this system is almost the same with output from conventional geophone. This system uses SPI Extender module to make one Raspberry Pi to acquire more MEMS geophone and with further cable reach. Respond result or output of geophone is saved into Raspberry Pi first so that it can be taken wirelessly by the host computer. Trial test is done at Universitas Indonesia. Based on the test results, the response of the MEMS Geophone, when given a wave explosion, is almost the same as a conventional Geophone.
Perception of the community on the use of biogas as alternative energy (Case study: Jetak Village, Getasan sub district)
Authors: Putri A , Purwanto  , Purnaweni H 
Published: April 2020

AbstractThe purpose of this research is to know public perception of biogas users in Jetak Village, Semarang Regency viewed from technological aspect, technical (biogas installation), biogas benefit, economy and environment. The method used qualitative descriptive with qualitative descriptive approach. The technique of determining key informants was done by purposive sampling. Data were obtained from cattle ranchers who lived in the study sites through interviews, observation and documentation. The result of this research is overall the perception about biogas energy get a positive response from user society. However, there are some things that should be considered for the government and others in providing assistance that is necessary to consider the evaluation and monitoring periodically so that the constraints experienced by the user community can be known early and can be found right solutions. In addition, the sustainability of the use of biogas energy can be done from generation to generation not just the aid which in the end becomes only useless materials.
Delineation of the permeable zone using microearthquake data in the geothermal field R
Authors: Sinaga R P , Rosid M S , Ramadhan I 
Published: April 2020

Abstract
Reservoirs are an important component in geothermal systems. Hot fluids accumulate in reservoirs, which consist of thick layers of permeable rock. Micro-earthquake methods can be used to identify the permeable zone in a geothermal system. In particular, observations of micro-earthquake hypocenters provide a promising technique to detect such permeable zones. Determinations of the hypocenters are performed using the single-event determination method. Micro-earthquake hypocenter relocations are performed to obtain more accurate locations and to reduce errors that occur because of inaccurate velocity models. The relocation method that is used in this study is double-difference relocation, which is the most efficient and fastest method available and is capable of generating small errors with no necessity of station corrections. In this study, we use data recordings by 18 stations of the micro-earthquake activity in the geothermal Field R from June to October 2012. The processing data start from raw time series data. The distributions of the relocated hypocenters were then matched to the supporting magnetotelluric and geologic data. The result of this study shows that there is a significant amount of seismic activity on the southern part of Mount R. The distribution of micro-earthquakes forms a cluster and a northwest–southeast structure pattern. The distribution of the hypocenters can be interpreted as the permeable zone beneath the surface, with the northwest– southeast fault pattern as the hydrogeology controller of the geothermal system in the geothermal Field R.
Fishermen’s perception of fisheries resources and water condition in Kretek District, Parangtritis
Authors: Susiloningtyas D 
Published: April 2020

Abstract
The coastal area which located in Kretek District performed the highest production in capture fisheries of Bantul Regency. As the consequence, many people in this district earn their living on fisheries sector as a fisherman, especially people in Parangtritis Village. The existence of perception affect relation between the person and their environment. In this case, the perception between fishermen and their coastal area specifically the sea water condition. Therefore, the study was conducted to understand the perception which develop in this area. The method used was quantitative descriptive method with chi-square test to understand relation between fishermen’s characteristic and perception with condition in Parangtritis coast. Result showed that fishermen’s perception about size of capture fish results, needed for conservation of fish resources, and about capture fish result condition in Parangtritis coast is have a relation with level of education, income, and fishermen’s place of origin.
New reservoirs prediction and production effects in the a Kutai Basin using the spectral decomposition method
Authors: Afzalurrahman  , Haris A , Riyanto A 
Published: April 2020

Abstract
The reservoir prospect with the play sub-thrust fault concept is new in the Kutai Basin. The Kutai Basin is the widest and deepest tertiary sedimentary basin in Indonesia. This basin still has many potential hydrocarbon reservoirs that have not been discovered and must continue to be explored. Prospect evaluation is one of the important stages in hydrocarbon exploration. One of ways that can accommodate prediction of reservoir distribution prospects is spectral decomposition analysis method. Prediction of reservoir distribution prospects uses spectral decomposition. The purpose of integration, blending and coordinating some processes, of this analysis is to investigate the distribution of reservoirs and trap integrity by using Spectral Decomposition analysis. In this study, low-frequency zone analysis and amplitude anomalies were observed at low frequencies and compared with the amplitude at mid and high frequencies. Amplitude analysis is used to distinguish the possibility of lithology and its filling fluid. The amplitude anomaly is seen at low frequencies and disappears at high frequencies. The spectral decomposition methods used are Continuous Wavelet Transform (CWT), Short Term Fourier Transform (STFT) and Generalized Spectral Decomp (GSD). The results of the various processes are then compared to see new reservoirs and the effect of production.
Seagrass distribution using remote sensing along the Ujunggenteng Coastal, Sukabumi
Authors: Ditriyani E , Supriatna  , Tambunan M P 
Published: April 2020

Abstract
Seagrass beds play an important role in marine ecosystems, primarily as a habitat that supports marine life. This study was undertaken to address the lack of available research regarding changes in seagrass density from year to year along the Ujunggenteng coastal, which is necessary to preserve seagrass beds in this area. More specifically, the purpose of this study was to determine the distribution of seagrass beds along the Ujunggenteng coastal and analyze their physical characteristics over a sixteen year period, from 2000–2016. The method used remote sensing technology that is used to look at the distribution of seagrass beds by performing calculations based on Lyzenga algorithms. Based on the results of data processing, seagrass in the study area was found to be distributed on three coral reefs. From year to year, the area of seagrass along the Ujunggenteng coastal appeared to increase. The physical characteristics affecting the distribution of seagrass along the Ujunggenteng coastal wered found to be sea surface temperature, salinity, and depth of sea water, and the physical characteristics that did not affect the distribution of seagrass were currents and sea water transparency.
Assessment of tropical forest degradation on a small island using the enhanced vegetation index
Authors: Hasanah A , Supriatna  , Indrawan M 
Published: April 2020

Abstract
The aim of this study was to measure and document the forest degradation on a small forested island in the tropics, that is, Peleng, Central Sulawesi. The forest conditions were observed using Landsat satellite images from 1991 to 2014. To quantify the change in the vegetation cover, a detection technique using Enhanced Vegetation Index (EVI) images was applied. Most parts of the main study area on Peleng are covered by highly degraded forest. However, the degradation decreases with increasing altitude. The EVI application shows that 48 % of Peleng’s forests are highly degraded, 28 % are moderately degraded, and 24 % are less degradation. Highly degraded and poorly managed forests occur at a lower altitude, where the road infrastructure (thus the accessibility) is developed well. Moderately degraded forest is found at borders with cultivation areas. The less degraded areas are found at a higher altitude, far from human habitations, which are mainly in the coastal areas. Local agriculture activities, illegal logging, and wildlife hunting are the main causes of forest degradation. This work represents one of few studies that apply the EVI in tropical forests. The benefit of EVI is discussed.
Using NDVI algorithm in Sentinel-2A imagery for rice productivity estimation (Case study: Compreng sub-district, Subang Regency, West Java)
Authors: Khoirunnisa F , Supriatna  , Wibowo A 
Published: April 2020

Abstract
Rice is the major staple food for nearly half of Indonesia’s population and has a considerable contribution to the global agricultural economy. As a rice granary with the highest rice productivity in Subang Regency, Compreng Sub-district plays an important role in food security. In 2017 Compreng Sub-district had 5,263 ha of rice harvested area with the productivity of 5.7 tons/ha. Therefore, it is urgently necessary to update information about the area and distribution of rice fields to estimate its productivity accurately. This study aims to explain the correlation between the Normalised Difference Vegetation Index (NDVI) values and rice productivity and then to estimate the rice productivity in Compreng Sub-district, Subang Regency in 2017. The methods used were Sentinel-2A imagery with NDVI equation. The results indicated that a Linear R Correlation best described the correlation between the NDVI value and rice productivity and an R2 value of 0.88 was obtained. The estimated calculation of Compreng Sub-district productivity in 2017 is an average of 5.65 ton/ha and the results of data accuracy using Root Mean Square Error between rice productivity estimation with the data from Department of Agriculture in Compreng Sub-district is 0.63.
Cilamaya estuary zonation based on sea surface salinity with 2 Sentinel-2A satellite imagery
Authors: Kaffah S , Supriatna  , Damayanti A 
Published: April 2020

Abstract
Estuaries act as transitional areas on the coastal zone that connect highly saline ocean environments with fresh river systems. This dynamic aquatic ecosystem is created by deep fluctuations in water quality and salinity levels. Cilamaya estuary supports a highly diverse marine ecosystem that is underutilized due to knowledge deficiencies of its variable rates of salinity. The aim of this study is to show the difference zone of estuary based on the sea surface salinity in the different time, so that Cilamaya Estuary areas can be utilized optimally for resource management. Sea surface salinity is obtained using algorithmic calculations based on the Sentinel-2A imagery. Salinity levels are studied based on the rainy and dry seasons. The higher salinity occur on the dry seasons, while on the rainy seasons have a lower salinity. Estuary areas experience 0.5-30 %o salinity placing it within the three zoning classes of the Venice System; Mexo-oligohaline; Mexo-mesohaline and Mexo-polyhaline.
Water quality assessment of Saluran Tarum Barat, West Java, based on biological monitoring working party-average score per taxon (BMWP-ASPT)
Authors: Dewi S D K , Wardhana W 
Published: April 2020

Abstract
A water quality assessment in the Saluran Tarum Barat was conducted at three stations, representing the beginning, middle, and end of the canal between February and May 2017. This research aimed to determine the quality of Saluran Tarum Barat water using benthic macroinvertebrates as a bioindicator through the Biological Monitoring Working Party-Average Score Per Taxon (BMWP - ASPT) method. Environmental parameters were also measured. The sampling found six families of macroinvertebrates: Naucoridae; Viviparidae; Parathelphusidae; Pisauridae; Palaemonidae; and Thiaridae. However, Parathelphusidae and Pisauridae families are not covered in the BMWP scoring list. Saluran Tarum Barat has an ASPT range from 4.25–4.5, which indicates that the water is moderately polluted.
The cellular voice traffic profiling spatial urban land use for South Jakarta
Authors: Taki H M , Djaja B M , Nurlambang T , Lubis M Z , Koestoer R H 
Published: April 2020

Abstract
Cellular traffic in the literature can be classified into voice, SMS, and data. Along with the rapid development of internet technology, a cellular operator is required to have spatial-based customer behavior information as the primary data in making business policy. The use of cell phone in Jakarta is remarkably recorded, while competitors among cell phone providers unavoidably follow the costumers’ behaviors. Combined methods are applied such as statistical analysis of ANOVA and multiple comparison tests supplemented by the spatial techniques using Geographic Information System (GIS) to review the time and area differences of the voice traffic changes. A cellular provider name Indosat is chosen as a case of voice traffic model data. Simple land-use types of residential classifications are set up and isolated rings of Von Thunen are reconstructed to explain more on the relationship between voice traffic of cell phone and land use distribution. The result of research indicates that the voice traffic highly varies among residential strata and commercial areas. In addition, voice traffics vary between weekdays and weekends depending on the accumulated users.