Miracle-dz/UniFAR-FTUs huggingface dataset:
Corporate governance award and performance of Indonesian LQ45 firms

This research aims to examine the impact of CGPI award on firm’s operational performance. Contrary to our expectation, using a sample of 45 companies listed in LQ45 index during 3-year observation period, it is found that corporate governance award has a significant negative relationship with companies’ performance. We use CGPI awardee/non-awardee to represent corporate governance award and ROA as a proxy of firm performance. Control variables included in this research consist of independent commissioners’ independency, board of director size and firm size. The unexpected negative relationship might indicate that the additional costs that must be borne by companies to implement good corporate governance practices, eventually become disadvantageous to their operational performance. The similar conclusion is found for the longer-term performance. Furthermore, we also find that the average ROA of CGPI awardees is much lower than the non-awardees, arguably due to the costly efforts put forward by the awardees to carry out and report on their corporate governance practices. The result of this research confirms the stewardship theory, in which the awardees put management as a steward and govern the firms to grow in size, however it comes with a certain cost that reduces their profitability.
Distribution Characterization Study of the Heavy Metals for a Mining Area of East Tianshan Mountain in Xinjiang Based on the Kriging Interpolation Method

In order to understand the impact of mining development on the environment, a metal mine at east Tianshan Mountain in Xinjiang province was used as the object of study. The heavy metal content data were obtained from field sampling and indoor measurements, and the data were compared with the heavy metal background values, applying the geostatistic method and Kriging spatial interpolation theory to map the heavy metal distribution in the study area. The results show that the overall heavy metal contamination in the mining area is serious, with significant accumulation of As, Cd and Cr, which is a threat to local human and animal health. And there are obvious correlations and synergies between the distribution of these heavy metals, mostly showing positive correlations, which should be taken into more account in the subsequent environmental rehabilitation of the mine site.
The Role of Public and Private Information in Fund Performance: Complements or Substitutes?

An emerging literature finds stocks outperform after sophisticated investors acquire their public information, but prior work finds that investors relying more on public information underperform. We find that hedge funds acquiring public information subsequently exhibit 1.5%-higher annualized abnormal returns than non-acquirors. Funds acquire information about stocks they hold, and position changes accompanied by public information acquisition outperform. Acquisition forecasts news and its value-relevance, suggesting that public information complements private signals. We consider alternative explanations for our findings. The positive relation between public information acquisition and fund performance is not explained by information processing skill or other differences in fund ability. We thank conference participants at the Q Group, the AIM Investment Conference, the American Finance Association, Northern Finance Association, Midwest Finance Association, and the Luxembourg Asset Management Summit. We thank seminar participants at University of Delaware, University of Houston, Rice University, the University of Texas at San Antonio, Virginia Tech, AQR Capital, Blackstone Alternative Asset Management, BMO Asset Management, Cubist Group, Fidelity, Geode Capital, Laurion Capital, Man Numeric, PanAgora Asset Management, Quantitative Management Associates, and Qt Fund. We thank Vikas Agarwal (AFA Discussant), Alberto Rossi (AIM discussant), David Schumacher (NFA discussant), Denitsa Stefanova (LAMS discussant), Wei Wu (MFA discussant), Brian Akins, Yong Chen, Jung-Ho Choi, Patricia Naranjo, Leila Peyravan, K. Ramesh, Brian Rountree, William Rutledge, and James Weston. We are grateful to K. Ramesh for providing internet registry data. Emails: Alan.D. Crane@rice.edu, Kevin.P.Crotty@rice.edu, and Tarik.Umar@rice.edu
Improving Biogas Yield Using Organic Fraction of Plant and Animal Wastes by Co-Digestion

This study presented the effects of co-digestion and catalysts on the performance of biogas production. Poultry dropping and walnut waste were used as feedstock materials while clay, KOH and NaOH were used as catalysts. The experiment was divided into five setups. The retention time was 45days. The digester temperature floated around 20-44°C while the PH varies from 5.7-8.7. Gas composition, physicochemical properties, calorific value as well as elemental composition of the organic waste were analyzed. The result revealed that the gas produced has high methane content ranging from 66.52 – 73.44% with low CO2 concentration ranging from 9.97 -16.92%. The total volume of gas was noted to be 135.2l, 115.2l, 82.2l, 162.4l and 115.7l for each sample. The physicochemical properties revealed that the TS varies from 3.04% – 4.15%, while VS varies from 3.27% – 4.49%. The TOC ranges from 3.13% – 3.84% while the nitrogen content ranges within 0.112% – 0.392%, while Crude fibre ranges from 0.70 – 1.79%. Ash content ranges within 1.16 – 2.67% and moisture content varies between 87.77 – 92.34%. The COD and BOD were also obtained. The calorific values of the samples obtained ranges from 15,882 – 22,036KJ/kg. The phosphorus content was between 0.33% and 0.43% while potassium was between 0.29and 0.42% on average.
Antiproliferative activity of five garcinia species collected in Sabah, Malaysian Borneo against estrogen receptor-human breast carcinoma (MCF-7) cell line

Garcinia species are well-known for their unique properties of having natural secondary metabolite compounds called xanthone as well as their ethnomedicinal values such as antioxidant, anticancer, anti-inflammatory and antibacterial properties. The study was conducted to investigate the antiproliferative activity of peel, flesh and seed extracts of G. dulcis, G. parvifolia, G. nitida, G. mangostana var. mangosta and G. cambogia collected from Malaysian Borneo (Sabah) against estrogen receptor-positive human breast carcinoma (MCF-7) cells. The antiproliferative activity was assessed using 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay. The results showed that G. dulcis seed induced strongest antiproliferative activity against MCF-7 cancer cell line with the IC50 value of 2.5 ± 0.0 µg/ml, followed by G. dulcis flesh, G. mangostana var. mangostana peel and G. dulcis peel with IC50 values of 9.33 ± 3.21, 11.17 ± 1.04 and 17.67 ± 2.08 µg/ml, respectively. Meanwhile, the IC50 value for G. cambogia peel was 56.67 ± 10.5 µg/ml. No IC50 value was detected in all parts of G. parvifolia and G. nitida at concentration tested ( < 100 µg/ml). Overall, this study clearly showed that the whole fruit of G. dulcis displayed potent cytotoxic effect by inducing antiproliferative activity at low concentration. Further studies are needed in the future to develop this fruit as pharmaceutical and nutraceutical product for the treatment and prevention against cancer.
Environmental sustainability engagement practices among youths in Muallim District, Perak, Malaysia

The study aimed to examine environmental sustainability practices among youths in Muallim District, Perak, Malaysia. This study applied a quantitative method comprising questionnaires with 400 youths aged 19 to 40. A simple random sampling method was used to divide the respondents into groups of two. Most variables (including knowledge, values and skills) were at high levels, but the environmental sustainability skills variable was only at a moderate level, with a mea score between 2.34 until 3.66. The findings also revealed a strong significant relationship between knowledge, values and environmental sustainability skills and environmental sustainability practices (p<0.05). The regression findings showed that environmental sustainability knowledge, environmental sustainability values and environmental sustainability skills contributed a total of 38.3 percent of variance change to environmental sustainability practices, with environmental sustainability knowledge being the greatest contributor at 31.5 percent, environmental sustainability at 5 percent and environmental sustainability skills at 1.8 percent (R2 =.383, F(1, 339)=81.846, p<. 05). This indicates that overall environmental engagement practices were influenced by individual sustainability skills. In fact, environmental knowledge not create awareness among youths to apply practices that lead to environmental sustainability; rather, the skills possessed and acquired by youths can lead to their engagement in environmental sustainability practices.
Spatio - temporal landcover dynamics and environmental impact in coal mine area of Korba district (Chhattisgarh)

Detection of digital change is the approach that helps to assess the changes associated with land use and land cover resources. Detection of landuse/landcover change in the form of maps and statistical data is very useful for land spatial planning, management and utilisation. In order to research land use / land cover shifts, Remote Sensing and Geographic Information System (GIS) were used. The goal of this study is to detect changes in land use between 1929 and 2009 using satellite images of 1990, 1999 and 2009 TM map data and 2009 Google Earth Imagery and topographic map surveys of India. The study developed a five-year (1929,1970,1999,2005,2009) land use/land cover map of the Korba district of Chhattisgarh to detect changes in the residential area, mining area, water bodies, farm lands, and forest areas in particular. The objective of study is to prepare land use/land cover map for different time periods, analyse the land use changes and evaluate the socio – economic implications of predicted change. Landuse changes have been detected by image processing method in ArcGIS9.3. Monitoring of landuse/landcover changes help to study impact of increase in industrialization on environment and to plan development activities and frame development policies. During this period of 80 years the forest area decreased nearly by half of that in 1929 from 4622.82km2 in 1929 to 2241.66km2 in 2009. The agriculture area increased during the period 1929 -1970 showing that deforested land was converted into agriculture land during this period from 1970 onwards mines and barren area increased from nil to 527.72 km2 in 2009. Residential area showed a drastic increase during the period 1970 -1999 due to migration of people from nearby areas to coal fields in search of livelihood.
Schoology effectivity as history learning environment during industrial revolution 4.0 era

History learning experiences dilemmatic issues over Industrial Revolution 4.0. Therefore, it needs excellence abilities to adapt into learning strategies in order to be accord upon students’ needs. Gen Z characteristics posses pros and cons encourage educators to shift the thinking paradigm and teaching technique. Technology utilization as inseparable aspect of students living has become undoubtedly. Technology immense advance has derived learning innovation, both online or offline. This research and development attempts to develop history learning environment that is packed with schoology. Based on preliminary research, teachers engaged 87,91% power point, 2,19% Video and 9,9% without media hence students became less interested during learning. The solution being proposed is utilizing schoology with ASSURE model. Learning Management System (LMS) with schoology allows teacher to generate, manage, and share the contents and resources. Content Expert validation result obtains 80% is qualified very eligible, design expert validation obtains 89% is qualified very eligible and language expert result obtains 90% is qualified for very eligible. Research results indicate that schoology has improved learning outcomes and very effective upon learning process of history. Recommendation of this research and development needs to be optimized regarding students potential through other innovative design which engages technology during learning activities.
Optimization of deep soil mixing mass for construction of tunnel cross-passage in Bangkok

A cross-passage from a tunnel to an intervention shaft in Bangkok subsoils was modelled using three-dimensional finite element analysis. The optimization was performed for reducing the volume of soil-cement mass while maintaining ground stability. The result showed that the factor of safety increases linearly with the thickness of improved ground. The relationship between the improved groundmass and ground surface settlement curve was made. It was found that the predicted settlement profile can be captured by the formula proposed by Peck and O’Reilly, providing that the empirical coefficient of 0.6 is fit well with the results from the 3D simulation. This value was obtained from the average of empirical coefficient value 0.4 and 0.7, which are the empirical coefficient values of stiff clay and soft clay, respectively based on the overburden thickness.
Shallow-Water Bathymetry Estimation at Pantai Tok Jembal, Terengganu, Malaysia Using Landsat 8 (OLI)

Satellite-derived bathymetry (SDB) emerging as a cost-effective that provides high-resolution mapping over a wide area. This method can map shallow water environment, especially that are difficult to access by boat or airplane. SDB is not for replacing the conventional bathymetry method but to assist. The accuracy of SDB does not meet current International Hydrographic Organization (IHO) S-44 standards but still can use when planning hydrographic surveying, i.e., unsurvey areas or areas with old data. In this paper, the SDB method applies to produces bathymetric mapping at Pantai Tok Jembal, Terengganu, Malaysia. Derived from Landsat 8 images and for the bathymetry method use is an empirical-based method, Log-ratio Transform. To diversify the result, utilizing three atmospheric correction approaches: No. atmospheric correction, Dark Object Subtraction (DOS), and Fast Line-of-sight Atmospheric Analysis of Hypercubes (FLAASH). The SDB result then evaluates using Single Beam Echo Sounding (SBES) ground truth data. The result indicates that Log-ratio Transform with DOS atmospheric correction produces the best result based on the error analysis. The error mostly occurs when there is no data available in the particular area due to cloud cover and shallow water area, i.e., inaccessible boat or vessel area. The error also occurs as it goes deeper area where the light is limited. In conclusion, this study successfully produces bathymetric mapping at Pantai Tok Jembal, Terengganu, Malaysia, through the SDB technique. This method strengthens the SBES data by effectively filling the data gaps; however, further research needs to fulfill this support in giving high accuracy and reliability.
Socio-economic impacts on lobster fishery actors after the implementation of Regulation No 12/PERMEN-KP/2020

The promulgation of Ministry of Marine Affairs and Fisheries Regulation Number 12/PERMEN-KP/2020 on Management of Lobster (Panulirus spp.), Mud Crab (Scylla spp.), and Blue Swimming Crab (Portunus spp.) in the Territorial waters of the Republic of Indonesia has implications for the management of lobster fisheries within the Indonesia’s Territorial Waters and Fisheries Management Areas (FMAs). This research aims to outline the current condition of lobster fisheries with the enactment of the ministerial regulation’s KP number 12/2020 on lobster fishery and to analyse the policy gaps regarding the implementation of lobster fisheries regulations. Data were collected within FMA 573 through a structured interview technique using a clustered questionnaire system and Focus Group Discussions (FGDs) with key informants. The impacts of the regulation were analysed quantitatively and qualitatively using a descriptive approach. The results indicate that the implementation of regulation No. 12/PERMEN-KP/2020 has not resulted in significant increases in income for lobster fishers and traders, in fact rather the reverse. The legalization of juvenile lobster capture has increased the supply, leading to a decrease in juvenile lobster prices. The price per lobster has fallen from IDR 6,000-10,000 to IDR 3,500-4,000, IDR17,500 to IDR 10,000-11,000 andIDR 27,500-30,000 to IDR 16,000-17,000 for fishermen, middlemen and exporters, respectively. The positive impacts on lobster fishers were an increased sense of security since it is no longer illegal to catch and trade juvenile lobsters.
An Empirical Study to Validate The Technology Acceptance Model (TAM) In Evaluating “Desa Digital” Applications

The sustainability of Industry 4.0 has now entered into the tourism sector or Tourism 4.0. Where tourism in Indonesia is a potential thing but still not as expected. Previous research shows that the applied model has not yielded optimal results in predicting platform use, so one of the steps to further study the Desa Digital mobile application research is done with the variables used in this study: Perceived Ease of Use, Perceived Usefulness, Attitude Toward Use, Intention to Use, and Actual System Usage. The aim of this research is to know the technology acceptance variable using the Technology Acceptance Model (TAM) and evaluate it. The method used in this research is to use the Partial Least Square (PLS) method. The results showed that: (1) variables influencing the acceptance of the Technology Acceptance Model, namely: Perceived Ease of Use, Perceived Usefulness, Attitude Toward Use, Intention to Use and Actual System Usage, (2) constructs that affect the model namely Perceived Ease of Use Use and Perceived Usefulness for Attitude Toward Use, Attitude Toward Use for Intention to Use and Intention to Use for Actual System Usage.
Biochemical Aspect, Antimicrobial and Antioxidant Activities of Melaleuca and Syzygium Species (Myrtaceae) Grown in Egypt

The objective of the present work was to establish the antimicrobial activity of four species of Melaleuca (i.e. Melaleuca leucandron, Melaleuca armillaris, Melaleuca linarifolia, & Melaleuca ericifolia) methanolic extracts and five species of Syzygium (i.e., Syzygium samaragense, Syzygium jambos, Syzygium gratum, Syzygium paniculatum & Syzygium malaccense). To research the chemical composition of the most promising extracts, as well. The antimicrobial activity was evaluated against four pathogenic microbial strains, namely Staphylococcus aureus, Escherichia coli, Candida albicans and Aspergillus niger, the antioxidant activity was evaluated by 2,2’-diphenyl-1-picrylhydrazyl radical (DPPH), while the chemical composition was calculated by gas chromatography coupled to a mass spectrometry method (GC/MS). For the genus of Melaleuca, S. After therapy, aureus pathogens were inhibited with their methanolic extracts with an 8.0-20.0 mm range of inhibition zones, E. Coli with a 0.0-21.0 mm inhibition zone size, C. Albicans with an inhibition zone size of 9.0-18.0 mm, and A. Niger with an inhibition zone scale of 0.0-15.0 mm. Whereas, for the genus Syzygium, S. After treatment with their methanolic extracts, aureus pathogens were inhibited with a 10.0-20.0 mm range of inhibition zones, E. Coli, with an inhibition zone size of 0.0-14.0 mm, C. Albicans with an inhibition zone size of 0.0-21.0 mm, and A. Niger with a range of inhibition zones of 0.0-9.0 mm. The IC50 values in the DPPH assay ranged from 34.60 to 60. 97μg/ml for the species Melaleuca. The IC50 values for the Syzygium species ranged from 29.81 to 52. 95μg/ml compared to 7. 35μg/ml for the normal ascorbic acid. GC/MS research showed that Syzygium gratum’s methanolic extract consists of 39 compounds comprising 99.08 percent, with Veridiflorol (7.16 percent) and 2-methyl, 3-Hexanone being the main compounds (5.74 percent ). While Melaleuca armillaris’ methanolic extract consists of 30 compounds comprising 97.66%, with Veridiflorol (18.36%) and Globulolol compounds being the key compounds (12.57 percent ).
Theoretical Study on One-Dimensional Consolidation of Underconsolidated Marine Clay Induced by Ramp Loading

The position of maximum excess pore water pressure is found to be a critical indication in the design of horizontal drainage systems for saturated soil, controlled by the drainage capacity at the boundaries and the self-weight of soil both of which are often ignored. In sea reclamation works, however, the dredged clay used is mostly under consolidated and will undergo the self-weight consolidation. In this paper, an exponentially time-growing drainage boundary condition is adopted, based on which the analytical solution of one-dimensional consolidation of underconsolidated soil under a ramp loading is obtained by using the eigenfunction expansion technique. The obtained solution is verified and a parameter analysis is later carried out. It turns out that when considering the self-weight of the soil subjected to the ramp loading, the variation of the position of maximum excess pore water pressure over time depends heavily on the symmetry of the boundary conditions. The smaller the over consolidation ratio (OCR<1), the shorter the distance of the plane of maximum excess pore water pressure to the bottom surface of the soil layer. Moreover, the larger the loading rate, the higher the plane of maximum excess pore water pressure at the loading stage.
Automated test setup to quantify the lifetime of dielectric elastomer actuators under a wide range of operating conditions

We present an automated test setup for the systematic performance and lifetime evaluation of dielectric elastomer actuators (DEAs). This setup, called the MAPLE setup, performs accelerated aging tests and allows quantifying how material choice, fabrication methods, voltage waveform, and environmental conditions influence DEA lifetime, an important step for commercial use of DEAs. The setup continuously monitors strain and electrode resistance of multiple DEAs under a wide range of environmental conditions (up to 85 °C and 85% relative humidity), with automatic breakdown detection to record device lifetime. To illustrate a use case, we investigate the lifetime of DEAs made of two different elastomer materials, comparing fixed polarity (FP) vs. periodically reversing the polarity of the actuation voltage. For DEAs made from a slide-ring material, lifetime improvements around 10× were observed at alternating polarity compared to FP. For DEAs made from silicone rubber, no improvement in lifetime was observed. This indicates that different degradation mechanisms are causing failure in the two materials.
Primary emissions and secondary organic aerosol formation from road vehicles

We present a new mobile environmental reaction chamber for the simulation of the atmospheric ageing of different emission sources without limitation from the instruments or facilities available at any single site. Photochemistry is simulated using a set of 40 UV lights (total power 4 KW). Characterisation of the emission spectrum of these lights shows that atmospheric ageing of emissions may be simulated over a range of temperatures (−7 to 25 ◦C). A photolysis rate of NO2, JNO2, of (8.0± 0.7)× 10−3 s−1 was determined at 25 ◦C. We demonstrate the utility of this new system by presenting results on the ageing (OH = 12× 106 molecules cm−3 h) of emissions from a modern (Euro 5) gasoline car operated during a driving cycle (New European Driving Cycle, NEDC) on a chassis dynamometer in a vehicle test cell. Emissions from the entire NEDC were sampled and aged in the