bluuebunny/crossref_metadata_2025_split huggingface dataset:
Real time prediction of four main food commodities in Indonesia and the mapping based on autoregressive integrated moving average model
Authors: Dianco R F , Novita M 
Published: January 2021

Abstract
Based on the United Nations Global Pulse, food prices have a direct effect on the purchasing power of a large part of the Indonesian population. Hence, it is important to maintain stable food prices. One way to do this is by making a prediction model. Using 59 weekly rice, shallot, chicken and egg prices starting from the first week in 2018 as the cornerstone, this research uses an Autoregressive Integrated Moving Average (ARIMA) model to predict the weekly prices of these food commodities in all Indonesian provinces. This research also provides real-time prediction that can be automatically updated when any new data is inputted. Finally, this research provides a mapping visualization to make it easier for people to interpret the results. This map is equipped with a dynamic line chart to compare two provinces food trendline and shows the current price, one week and two weeks prediction. All of this is built using R 5.3.2. In this research, the error is calculated from the coefficient of variation and the result is 0.58 %, 4.1 %, 3.23 % and 2.76 % for rice, shallot, chicken, and egg weekly prices, respectively. Furthermore, this research also analyses the prediction of second-week prices of rice, shallot, chicken, and eggs in March 2019. Hopefully, this research will bring benefit to the government and farmers to make a better decision based on these predictions, so that in the future, food prices will stabilize.
The role of male Sumatran slow loris Nycticebus coucang (Boddaert, 1785) in family at Yayasan Inisiasi Alam Rehabilitasi Indonesia (YIARI), Bogor, West Java
Authors: Sjahfirdi L , Afifah S , Priambada N P 
Published: January 2021

AbstractResearch has been conducted to identify the role of captive male sumatran slow lorisNycticebus coucang(Boddaert 1785) in family at Yayasan Inisiasi Alam Rehabilitasi Indonesia (YIARI) Rehabilitation Center, Bogor, West Java. The subjects were two male sumatran slow lorises living in shared cages with females and their infant. Focal animal sampling and ad libitum methods were used to observe interactions between male and female and their infant. The study took approximately 6 hours per day with 15 minutes non-stop interval in 24 days during October-November 2019. The total duration of the observation was equal to 8,628 minutes. Subjects spent 26.21 % of their time involved in social interactions with female and their infant. Interactions performed between subjects and femaleN. coucangoccurred as much as 13.18 % with the most performed interactions being proximity, social grooming, and approach respectively. Interactions between subjects and their infant occurred as much as 13.03 % of total duration with the most performed interactions included social grooming, proximity, and social playing respectively. Social interactions performed by subjects were higher compared to their counterparts in the wild. Captive maleN. coucangin YIARI played role as female’s social and sexual partner and in social development of their infant.
Effect of lead (Pb) on seed germination of water spinach (Ipomoea aquatica Forsk)
Authors: Ni’am M I , Yuniati R 
Published: January 2021

Abstract
In this research, the effect of lead (Pb) on seed germination rate (%) of water spinach (Ipomoea aquatica Forsk) have been investigated. The seeds were placed in 6 × 4 × 2 cm rockwool moistened with distilled water (control) and aqueous solutions of PbCl2 (0, 50, 100, 150 and 200 μM). Germination test was done by sowing fifteen water spinach seeds with six replicates for each concentration Pb level for 4 days. Several parameters have been observed in the seed germination test. Such stress conditions revealed that by increasing the concentration of lead, the germination rate (%), the tolerance index (TI), and the seedling vigor index (SVI) decreased significantly, suggesting their toxic effect on water spinach. The obtained data were analyzed using one-way ANOVA. The results showed that for lead-treated seeds were significantly different compared to the controls and showed a gradual decrease towards an increase in lead concentration (Pb) in shoot and root fresh weight, shoot and root length, SVI, and, TI. Germination percentage and seedling dry weight of lead-treated germinated seeds were not significantly different compared to the controls. Due to limitations of the data, the maximum lead concentration thresholds for water spinach cannot be accurately determined, but it can be inferred that they would be greater than 100 and less than 200, respectively.
The effect of mycorrhizae on the growth of Paraserianthes falcataria L. (Nielsen) in an artificial growth medium containing copper and cadmium
Authors: Listiani S , Yuniati R 
Published: January 2021

Abstract
Excessive heavy metals Cu and Cd has a negative effect on plants. Mycorrhizae is a symbiosis between roots and mycorrhizal fungi which can improve the plant’s ability to survive under heavy metal stress and reduce its toxicity. Based on the previous study, mycorrhizae can increase the growth of Paraserianthes falcataria L. (Nielsen) under Pb stress. This study aims to reveal the effect of mycorrhizae on the growth of P. falcataria in an artificial growing media containing copper and cadmium. Paraserianthes falcataria inoculated with 0, 15 and 25 g of mycorrhizae and treated with 150 mg/kg of CuSO4 and 15 mg/kg of CdSO4. Parameters observed in this study were plant height, fresh weight, and leaf color on the 43 days after planting. The results showed that mycorrhizal inoculation did not significantly increase the height of P. falcataria treated with Cu and Cd. Fresh weight of P. falcataria in Cu and Cd treatment showed higher in mycorrhizal inoculated-plants than without mycorrhizae. Based on the observation of leaf color, there were dead plants without mycorrhizal inoculation in both metal treatments. Discoloration also found in most of the older leaves in Cu treatment plants inoculated with mycorrhizae and without mycorrhizae. Plants with normal colored leaves in Cd treatment increased at the higher mycorrhizal dose. The inoculation of mycorrhizae can improve the plant’s ability to alleviate the effects of toxicity caused by the excessive concentrations of Cu and Cd.
Analysis of expression level of floral-identity gene (SEPALLATA) in Epicalyx of Hibiscus rosa-sinensis L.
Authors: Oktaviandie Y , Salamah A 
Published: January 2021

Abstract
Genetic identification of modified floral parts, such as epicalyx, may give new perspectives in flower development fundamentals and its applications. Research on floral-identity gene (SEPALLATA) expression level has been done in three parts of Hibiscus rosasinensis; they are leaves, epicalyx, and calyx. This research was conducted to observe the expression of the SEPALLATA gene in epicalyx. The expression level analysis was done qualitatively by the two-steps RT-PCR and visualized using agarose electrophoresis. Hibiscus rosa-sinensis RNA was isolated using the modified-CTAB method and continued by DNase-treatment to eliminate gDNA in the mixture. Furthermore, RNA was used to make cDNA using the Reverse Transcription method and amplified using the PCR method by specific primers. The result showed the presence of SEPALLATA amplification in epicalyx using GH7SEP1 primer, yet none on epicalyx using GHSEP1 primer. Confirmation using GH7SEP1 forward primer and GH1SEP1 reverse primer did not show any amplification. Sequencing and alignment results suggested that amplifications using GH1SEP1 or GH7SEP1 were allegedly, of which amplified from SEPALLATA gene.
Rock physics modelling based on Voigt-Reuss and cement contact theory method at sand reservoir “FRR” field, Kutai Basin
Authors: Syari F T , Maulana M R , Muflihendri R , Riyanto A 
Published: January 2021

Abstract
There has been studied of the rock physics modelling in sand reservoir based on Voigt-Reuss and cement contact theory method case study at FRR field Kutai Basin. The objective of this study to modelling rock physics based on Voigt-Reuss and cement contact theory from geological information. Voigt-Reuss bounds model and cement contact was applied. This method related link between geological information and seismic properties. The data used in FRR field Kutai basin has the sandstone majority marked by 20 % P wave velocity. The results obtained by rock physics modelling shown modulus bulk to porosity has pattern close to lower bounds, that is existence the pore type has soft characterize and decrease bulk modulus with increase clay content and fluid saturation. The results show correlation between bulk modulus estimation and log data have good correlation. This suggests that Voigt-Reuss and cement contact theory model useful for bulk modulus estimation in sand reservoir
Gini Shortfall: A Gini mean difference-based risk measure
Authors: Eugene A J , Novita M , Nurrohmah S 
Published: January 2021

Abstract
A risk is the possibility of undesirable events happening in the future. A good risk measure is needed to quantify the risks one faces. Some well-known risk measures include the Value-at-Risk (VaR) and the Expected Shortfall (ES). VaR measures the lower bound for big losses in a loss distribution tail, while ES measures the average of losses surpassing the VaR. Unfortunately, there are drawbacks in using the stated risk measures, mainly that they do not provide information regarding the variability of losses in the distribution tail. This paper will introduce and explore Gini Shortfall (GS), a more comprehensive risk measure than VaR and ES. GS provides information on the variability of data in distribution tails measured with Tail-Gini functional, a tail variability measure based on the variability measure Gini Mean Difference or Gini functional. Another superiority of GS is that under certain conditions, it can satisfy the four criteria of coherency. A coherent risk measure is useful for companies or investors to determine the right business and investing strategies. This paper will also provide explicit formulas of GS for some loss-related distributions, namely the exponential, Pareto, and logistic distributions. These formulas are then applied to calculate risks from actual stock data.
Characterization of xylanolytic bacteria Bacillus sp. EM24 from mangrove forest sediment, Kahyapu, Enggano Island
Authors: Sipriyadi S , Darwis W , Wibowo R H , Tuti W A 
Published: January 2021

Abstract
Xylanases are extracellular enzyme that hydrolyze xylan into xylooligosaccharide and xylose. Group bacteria that have ability to hydrolyze xylan are called xylanolytic bacteria. This study aimed to characterize xylanase produced by Bacillus sp EM24 isolated from mangrove forest sediment in Kahyapu, Enggano island. The mangrove forest sediment samples were collected from Kahyapu village, Enggano island. Isolation of bacteria was done by using 0.5% xylan beechwood agar medium. The potential xylanase producing bacteria were qualitatively investigated by using 0.5% congo red solution. Colonies which produced clear zone were presumed as xylanolytic bacteria furthermore they were selected for determination of xylanase enzyme activity. The potential xylanolytic isolates was identified by Gram staining and biochemical tests. The result of isolation showed that a total number of 30 isolates were grew well on medium. Based on clear zone screening, EM24 isolate had widest clear zone. Xylanase produced by EM24 isolate had highest activity at 40th hours after incubation with the enzyme activity of 0.484 U/mL. Characterization of xylanase measurement showed that xylanase produced by EM26 isolate can optimally work at pH 6 and temperature 35 °C. Based on identification result, EM24 isolate had close relationship with Bacillus sp.
Antitermite activity of methanol extract of lichen Teloschistes flavicans (Sw) Norman against Coptotermes curvignathus
Authors: Avidlyandi A , Adfa M , S Yudha S 
Published: January 2021

Abstract
Antitermite activity methanol extract of lichen Teloschistes flavicans (Sw) Norman was investigated in the laboratory scale. No-choice test was used as method with 5 concentrations tested of 1.25%, 2.5%, 5.0%, 6.25% and 7.5% w/v. The termiticide activity showed that the mortality of termites was increased every day as well as the concentration of the extract increased, at the concentration of 7.5% all termite dead at fourth days. Termiticide activity of methanol extract of T. flavicans was influenced by the GC-MS data that showed 78 chemical components. Vicanicin, methyl oleate, methyl palmitate, and patchouli alcohol was detected as major components that be expected as termiticide. T. flavicans might be possible as a botanical termiticide in the near future.
Biplot analysis for marking the quality of schools which compatible with national examination score
Authors: Fahrurrazi F , Rohiat R , Somantri M , Turdja’i T 
Published: January 2021

Abstract
The issue of national examinations has always been a matter of debate, because the scores are only used to determine the passing scores of students without follow-up. This study aims to map the quality of schools in accordance with national exam scores, and describe the relationship between national exam scores and influential variables. Data were taken from 22 high schools in Malang and Malang regencies with a population of 5396 people and a sample of 359 people. Data were analysed with a biplot package based on Mathematica programming, by combining scores and national deviation examination standards. Mapping the quality of schools is compatible with the national exam scores. It is obtained by the biplot with standard variables. The results obtained show that there is the compatibility of the rankings, and there is a significant positive correlation between all schools.
Learning work and energy through Aminuddin and Aminullah Comic
Authors: Alrizal A , Pathoni H , Rinasari S 
Published: January 2021

Abstract
The interesting learning media will help students to understand physics. Comic is one of the alternative learning media that can be used in the learning process. The using of comic has been used widely in the field of education. This research aimed to develop a work and energy comic based on Jambi folklore, Aminuddin and Aminullah, for senior high school students. The scenes of comic will be connected to the concepts of physics especially on the work and energy concepts. This study used research and development method referring to the ADDIE model which consisted 5 stages : Analyze, Design, Development, Implementation and Evaluate. The results of the students response and expert validation of comic showed that the comic is feasible to use in learning.
Description intermediate conception in learning Physics
Authors: Wardana R W , Liliasari L , Tjiang P C , Nahadi N 
Published: January 2021

Abstract
Some previous research have showed that Physics concept has abstract characteristic, difficult, and complex. This characteristic causes the students to have knowledge, understanding, and various conceptions. Students’ various conceptions in Physics learning causes the emergence of discrepancy between alternative and scientific conception called as Intermediate conception. This research aims to description of intermediate conception in learning Physics. This research was qualitative research with literature review design. Data collection was conducted by collecting some literatures either articles or books related to intermediate conception. Data analysis was done by conducting analysis and articles and books synthesis and then drew a conclusion. The research results show that intermediate conception can be described as the conception between alternative conception and scientific conception which represent the pieces of ideas or concepts that have lead to science. Intermediate conception can be categorized into; naive physics, phenomenological intermediate primitives, lateral intermediate conception, and ontological intermediate conception.
Analysis of student science process skills on electrical material using discovery model
Authors: Sugiarti S , Ratnanigdyah D 
Published: January 2021

Abstract
The purpose of this study is to describe the ability of students science process skills on electrical material after the implementation of discovery learning models. Discovery learning model is a learning model that guides students to make discoveries through experimental activities. This study uses a quasi-experimental method with one shot pre-test post-test design. The material used in this research instrument is electrical material presented of the second semester physics education program students at PGRI Palembang University. The results of this study indicate the science process skills in electrical material are included in the medium category.
Glucocorticoid receptor-targeted liposomal delivery system for delivering small molecule ESC8 and anti-miR-Hsp90 gene construct to combat colon cancer
Authors: Jinka Sudhakar , Rachamalla Hari Krishnareddy , Bhattacharyya Tithi , Sridharan Kathyayani , Sekhar Jaggarapu Madan Mohan Chandra , Yakati Venu , Banerjee Rajkumar 
Published: January 2021

Abstract
High mortality rate in colon cancer patients is often attributed to late diagnosis. To overcome the conventional chemotherapy associated challenges, chemotherapeutic drugs (single or combination) or genetic drugs are often delivered using ligand-modified delivery systems that selectively target over expressed receptors or particular receptors that act abnormally in cancer cells. In the current investigation, first we assessed anti-colon cancer effect of a cationic estrogenic molecule, ESC8 which was earlier shown to act against estrogen receptor (ER) ± breast cancer cells. We found that against both colon and breast cancer cells the anticancer activity is intervened by AMPK-mTOR pathway and at the same time it acts as anti-angiogenic agent. It also showed enhancement of mesenchymal-to-epithelial (MET) transition as well as reduction of cyclin D in both cells. Earlier we demonstrated the use of glucocorticoid receptor (GR) targeted cationic liposomal delivery system carrying anti-Hsp90 plasmid and ESC8 to act as potent anti-skin cancer therapeutics. As ESC8 demonstrated anti-colon cancer effect in vitro, in here, we used the same GR-targeted liposomal formulation but carrying a more fusogenic cationic lipid D1 and used against colon tumor orthotopic model in mice. We show that GR targeted formulation (D1XE-Hsp90) exhibited efficient cellular uptake, transfection and selective cytotoxicity in colon cancer cells, tumor-targeted bio-distribution and enhanced survivability, reduced tumor size in orthotopic colon tumor-bearing mice. The tumor sections exhibited reduced tumor proliferation as well as neo-vascularization, thus supporting the holistic antitumor effect of the D1XE-Hsp90 formulation. Over all our results establish the GR-targeted D1XE-Hsp90 formulation as potent anti-colon cancer therapeutics.
Collaboration and infrastructure is needed to develop an African perspective on micro(nano)plastic pollution
Authors: Nel Holly A , Naidoo Trishan , Akindele Emmanuel O , Nhiwatiwa Tamuka , Fadare Oluniyi O , Krause Stefan 
Published: January 2021

Abstract
Our current understanding of environmental micro(nano)plastic (MNP) pollution is driven by field and lab-based studies performed predominantly by and in wealthier countries. However, mismanaged waste and its consequences affect low- and middle-income countries over-proportionately. Evidence suggests that studies on MNP pollution in Africa are critically limited by the scientific infrastructure available, restricting research activities to opportunities for external collaboration with established research laboratories in the Global North. The development of Pan-African research networks and analytical nodes, is required to support intra-African research exchange and training, and drive evidence-based policy relevant to an African context. This can facilitate more inclusive conversations around the harmonization and standardization of methods currently mainly available to the Global North.
An ensemble approach to quantify global mean sea-level rise over the 20th century from tide gauge reconstructions
Authors: Palmer M D , Domingues C M , Slangen A B A , Boeira Dias F 
Published: January 2021

Abstract
We present an ensemble approach to quantify historical global mean sea-level (GMSL) rise based on tide gauge reconstructions. This approach combines the maximum internal uncertainty across the ensemble with an estimate of structural uncertainty to provide a conservative estimate of the total uncertainty. Comparisons of GMSL rise over the 20th century based on deltas and linear trends (and their respective uncertainties) are consistent with past Intergovernmental Panel on Climate Change assessments and show good agreement with satellite altimeter timeseries. Sensitivity tests show that our estimates of GMSL rise are robust to the choice of reference period and central estimate timeseries. The methods proposed in this study are generic and could be easily applied to other global or regional climate change indicators.
Dynamic vulnerability of smallholder agricultural systems in the face of climate change for Ethiopia
Authors: Shukla Roopam , Gleixner Stephanie , Yalew Amsalu Woldie , Schauberger Bernhard , Sietz Diana , Gornott Christoph 
Published: January 2021

Abstract
Assessing vulnerability to climate change and extremes is the first step towards guiding climate change adaptation. It provides the basis to decide ‘what’ adaptation measures are needed ‘where’. Vulnerability which is defined as a function of exposure, sensitivity, and adaptive capacity, differs spatially and evolves temporally. Therefore, it is imperative to understand the dynamics of vulnerability at sub-national scales to be prepared for and respond to current and future climatic risks. This paper focuses on Ethiopia where a sub-national understanding of vulnerability dynamics in smallholder agriculture systems is missing to date. The paper assesses the vulnerability of crop-based smallholder systems in Ethiopia for the past (1996–2005), current (2006–2015), and two future (2036–2045 and 2066–2075) climate scenarios using an indicator-based approach. The future scenarios are based on two Representative Concentration Pathways (RCPs) RCP 2.6 and RCP 6.0 from four general circulation models. Results show the emergence of highly vulnerable zones that were missing in the past scenario. With Paris agreement pathway, keeping global warming under 2 °C (RCP 2.6), reduction in vulnerability of 10% of the zones is noted in far future (2066–75) as compared to RCP 6.0 where the exposure increases, making 30% of the zones highly vulnerable. The projected increase in exposure to climatic hazards will worsen the vulnerability of smallholder agricultural systems in future unless the current adaptation deficit is sufficiently addressed. This study maps the temporal dynamics of vulnerability unlike the prevailing snapshot assessments at subnational-level for Ethiopia. The study seeks to assist the decision-making process to build resilience to climate change in Ethiopia and other low-income countries with similar geophysical and socio-economic conditions.