bluuebunny/crossref_metadata_2025_split huggingface dataset:
Reaksi Pasar Atas Pengumuman Anugerah Program Penilaian Peringkat Kinerja Perusahaan dalam Pengelolaan Lingkungan Hidup
Authors: Wirajaya I Gde Ary , Pangestu Teresia Arta 
Published: October 2021

This study aims to examine the market's reaction to information regarding the announcement of a company performance rating assessment program award in environmental management. Market reaction is measured by abnormal return around the announcement date of the environmental management program. This research is conducted at the Indonesia Stock Exchange. The population in this study are all publicly listed companies receiving PROPER awards listed on the IDX in 2018 for a total of 51 companies. Samples that met the purposive sampling criteria are 50 companies. The analysis technique used is one sample t-test and independent samples t-test. The results of this study indicate that there is a market reaction around the PROPER rating announcement date, and there is no different market reaction between companies with good ratings and companies with bad ratings.
Keywords: Event Study; Abnormal Return; PROPER.
Kompetensi Akuntansi Sumber Daya Manusia dan Kinerja Pegawai dengan Produktivitas sebagai Variabel Intervening
Authors: Arsani Ni Kadek Budi , Rasmini Ni Ketut 
Published: October 2021

This study aims to determine the effect of human resource accounting competence on employee performance with BUM Desa productivity as an intervening variable. Data collection was done through a questionnaire. This study uses a quantitative approach with primary data sources and secondary data. The population in this study were all BUM Desa in Gianyar Regency. The sample in this research is BUM Desa in Gianyar Regency with purposive sampling method. The analysis technique used is path analysis. The test results show that human resource accounting competence has a positive effect on the productivity of BUM Desa in Gianyar Regency. The productivity of BUM Desa has a positive effect on employee performance at BUM Desa, Gianyar Regency. Human resource accounting competence has a positive effect on employee performance at BUM Desa Gianyar Regency. Human resource accounting competence has a positive effect on employee performance through productivity at BUM Desa, Gianyar Regency.
Keywords: Human Resource Accounting Competence; Productivity; Employee Performance.
Pengujian Monday Effect pada Indeks LQ-45 di Bursa Efek Indonesia pada saat Pandemi
Authors: Kepakisan Komang Bagus Surya , Damayanthi I Gst Ayu Eka 
Published: October 2021

Research in Indonesia found many anomalies in the stock market, such as the Phenomenon of Monday effect. The diversity of research results encourages to re-research the Phenomenon of Monday effect on different conditions, namely pandemic. The purpose of this study is to find out the occurrence of Monday effect on the Indonesia Stock Exchange at the time of the pandemic. This research was conducted on all LQ-45 companies in March to October 2020. Data collection by observing the available secondary data. The analysis technique used is one sample t-test. This research proves that there is no difference in average return on Monday which the phenomenon of Monday effect doesn’t occur during a pandemic.
Keywords: Monday Effect; LQ-45 Index; Indonesia Stock Exchange.
Effects of keratinocyte-derived and fibroblast-derived exosomes on human epidermal melanocytes
Authors: Shi Hai-Xia , Zhang Ru-Zhi , Xiao Li , Wang Li 
Published: October 2021

Background:
Exosomes have been demonstrated to carry proteins, membrane lipids, mRNAs and microRNAs which can be transferred to surrounding cells and regulate the functions of those recipient cells.

Objectives:
The objective of the study was to investigate the effects of exosomes released by keratinocytes and fibroblasts on the proliferation, tyrosinase activity and melanogenesis of melanocytes.

Methods:
Melanocytes, keratinocytes and fibroblasts obtained from human foreskin were cultured and exosomes secreted by keratinocytes and fibroblasts were harvested from the culture supernatants by ultracentrifugation. Each exosome fraction was divided into two parts; one part was subjected to high-throughput sequencing using an Illumina HiSeq sequencer to characterize the microRNA expression profiles, while the other part was labeled with the fluorescent dye PKH67 and was then co-cultivated with epidermal melanocytes.

Results:
High-throughput sequencing analysis showed 168 differentially expressed microRNA within exosomes derived from keratinocytes and from fibroblasts, 97 of those being up-regulated with the other 71 down-regulated. Gene ontology analysis showed that the target genes responsible for these differentially expressed microRNAs were mainly enriched in the protein-binding region of molecular functions. Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway analysis showed that target genes regulated by differentially expressed microRNA were mainly involved in mitogen-activated protein kinase (MAPK) signaling pathway, Ras signaling pathway, cAMP signaling pathway and Wnt signaling pathway. Keratinocyte-derived exosomes were taken up by melanocytes co-cultured with them and promoted the proliferation, tyrosinase activity and melanin synthesis of those melanocytes. However, fibroblast-derived exosomes had no similar effects on melanocytes.

Conclusion:
Keratinocyte-derived exosomes but not fibroblast-derived exosomes were taken up by melanocytes in co-culture and significantly stimulated their proliferation, tyrosinase activity and melanin synthesis. Those different effects may be mainly due to the differential expression of microRNAs in exosomes derived from the different types of cells.

Limitations:
Electron microscopy of the obtained exosomes and in-depth study of apparently differentially expressed microRNAs were not performed.
The Impact of Waves and Tidal Currents on the Sediment Transport at the Sea Port
Authors: Truong Dinh Duc , Tri Doan Quang , Don Nguyen Cao 
Published: October 2021

Dredged sediments in estuarine and coastal waters can cause sediment transport and water pollutant in marine environment since the sediments are diffused to waterbodies under the influence of wave and flow regimes. As a result, it increases turbidity and enhances sediment deposition at dump sites. In Vietnam, few authors have studied and assessed the environmental impact of dumping and dredged materials to the port areas. This paper combines a coupled spectral wind-wave, hydrodynamic, and sediment transport models in order to study the impact of tide and wave conditions to regional sediment transport patterns at Vung Ang port area in Vietnam. The results for the currents and waves were evaluated and validated using field data. Wind and wave data for the calculated domain are extracted from the WAVEWATCH-III (wave data) and NOAA global climate change models (wind data). The calibration and validation of the MIKE 21/3 showed a high conformity between the observed and simulated data based on the mean absolute error (MAE), the RMSE-observation standard deviation ratio (RSR) and the Percent bias (PBIAS). The MIKE 21/3 sediment transport simulation results showed that the highest suspended sediment concentrations were 2.5-3 g/m3 at the dredging position and the increased concentration along the transport route ranged from 1-1.5 g/m3. The simulation results showed the bed level change of the simulated domain. We found that the suspended sediment diffusion area decreased with the respective depth: Layer 1 (65.5 km2), Layer 2 (45.7 km2), and Layer 3 (37.4 km2). Therefore, the simulation results of the dredged materials activities were significantly affected by the wave and tidal regime on the sediment transport. Doi: 10.28991/cej-2021-03091749 Full Text: PDF
Impact of Length and Percent Dosage of Recycled Steel Fibers on the Mechanical Properties of Concrete
Authors: Gul Akhtar , Alam Bashir , Iqbal Muhammad Junaid , Ahmed Wisal , Shahzada Khan , Javed Muhammad Haris , Khan Ezaz Ali 
Published: October 2021

The global rapid increase in waste tyres accumulation, as well as the looming social and environmental concerns, have become major threats in recent times. The use of Recycled Steel Fiber (RSF) extracted from waste tyres in fiber reinforced concrete can be of great profitable engineering applications however the choice of suitable length and volume fractions of RSF is presently the key challenge that requires research exploration. The present experimental work aims at investigating the influence of varying lengths (7.62 and 10.16 cm) and dosages (1, 1.5, 2, 2.5, 3, 3.5, and 4%) of RSF on the various mechanical properties and durability of concrete. Test results revealed that the varying lengths and dosages of RSF significantly affect the mechanical properties of concrete. The improvements in the compressive strength, splitting tensile strength, and Modulus of Rupture (MOR) of RSF reinforced concrete observed were about 26, 70, and 63%, respectively. Moreover, the RSF reinforced concrete showed an increase of about 20 and 15% in the yield load and ultimate load-carrying capacity, respectively. The durability test results showed a greater loss in compressive strength and modulus of elasticity and a smaller loss in concrete mass of SFRC. Based on the experimental findings of this study, the optimum dosages of RSF as 2.5 and 2% for the lengths 7.62 and 10.16 cm lengths, respectively are recommended for production of structural concrete. Doi: 10.28991/cej-2021-03091750 Full Text: PDF
Analysis of Conveyance Losses from Tertiary Irrigation Network
Authors: Syed Naeem Shah Bukhari , Shuqi Zhao , Babar Muhammad Munir , Soothar Rajesh Kumar 
Published: October 2021

Irrigation canals are generally made through porous soil formations, since the soil is loose porous media – a huge amount of canal water is lost to conveyance losses. The situation becomes direr when these losses result in non-beneficial losses. The Sindh province of Pakistan has more than 70% saline groundwater, conveyance losses to such areas in the province not only become unusable but also creates water management problems. Perhaps the only cost-effective way to address these losses is canal lining. The present study was conducted in the command area of Belharo distributary, Sindh, Pakistan with an aim to determine the extent of losses from the tertiary irrigated network as these water channels are less considered in the literature with regards of conveyance losses. Using water balance method, conveyance efficiency and conveyance losses at 30% lined and 50 and 75% unlined length of the watercourses was observed. The results revealed that the tertiary irrigation channels face an average of 43% conveyance losses and major proportion of these losses is lost to non-beneficial losses from the study area. The study further suggests 75% lining of watercourses in order to minimize non-beneficial losses. This study also infers that with the use of geo-membrane lining, sizeable amount of fresh water can be saved. Doi: 10.28991/cej-2021-03091756 Full Text: PDF
Study of Pressure Distribution on an Irregular Octagonal Plan Oval-Shape Building Using CFD
Authors: Kumar Arun , Raj Ritu 
Published: October 2021

This paper aims to study the wind flow characteristics and to analyze the wind pressure distribution on the surfaces around an irregular octagonal plan shape building model. There is a central open space in plan to provide more surface area around the building for natural ventilation. Plan area of the building is 300 m2(excluding the open space) and height is 50 m. Steady state flow of wind with 5% turbulence (moderate turbulence) under atmospheric boundary layer has been taken in the study. Numerical simulation with standard k-e model using ANSYS (CFX) software has been used for the purpose. Flow characteristics has been studied in terms of flow separation, reattachment of flow, creation of wakes and vortices. The surface pressure generated around the model has been studied in terms of coefficient of pressure. The model is symmetrical about both the axes in plan. Hence, study for different wind angle of attacks from 0° to 90° @ 30° interval has been conducted. The flow characteristics and unusual or critical coefficient of pressure on surfaces of the model observed have been discussed. Doi: 10.28991/cej-2021-03091760 Full Text: PDF
Machine Learning Bias in Predicting High School Grades: A Knowledge Perspective
Authors: Costa-Mendes Ricardo , Cruz-Jesus Frederico , Oliveira Tiago , Castelli Mauro 
Published: October 2021

This study focuses on the machine learning bias when predicting teacher grades. The experimental phase consists of predicting the student grades of 11th and 12thgrade Portuguese high school grades and computing the bias and variance decomposition. In the base implementation, only the academic achievement critical factors are considered. In the second implementation, the preceding year’s grade is appended as an input variable. The machine learning algorithms in use are random forest, support vector machine, and extreme boosting machine. The reasons behind the poor performance of the machine learning algorithms are either the input space poor preciseness or the lack of a sound record of student performance. We introduce the new concept of knowledge bias and a new predictive model classification. Precision education would reduce bias by providing low-bias intensive-knowledge models. To avoid bias, it is not necessary to add knowledge to the input space. Low-bias extensive-knowledge models are achievable simply by appending the student’s earlier performance record to the model. The low-bias intensive-knowledge learning models promoted by precision education are suited to designing new policies and actions toward academic attainments. If the aim is solely prediction, deciding for a low bias knowledge-extensive model can be appropriate and correct. Doi: 10.28991/esj-2021-01298 Full Text: PDF
Music Stimulation as a Method of Optimizing Autobiographical Memory in Patients Diagnosed with Alzheimer’s Disease
Authors: Pone-Pardo Ariana , Acosta-Rodas Pamela , Cruz-Cárdenas Jorge , Ramos-Galarza Carlos 
Published: October 2021

Alzheimer’s is a neurodegenerative disease characterized by the progressive deterioration of cognitive functions, with memory being the most affected. Several studies have shown the benefits of music as a complementary treatment for dementia, improving patients’ quality of life. A scientific contribution is needed to show how autobiographic memory could be improved by using musical activities. Objective: The aim of this investigation is to analyze the impact of a musical stimulation protocol on the performance of autobiographical memory in elderly people suffering from Alzheimer’s. Participants and Method: This research was conducted with three patients diagnosed with Alzheimer’s disease: two females (66.7%), and one male (33.3%). One (33.3%) was in the early stages, and two were in the middle stages. This investigation used a quantitative, pre-experimental, longitudinal study with the application of two tests before and after the intervention. Findings: Changes in the performance of autobiographical memory (t=-5.79, p=0.002), and in the semantic component (t=-10.14, p=0.01) were found to be statistically significant, but no changes were evident for episodic memory (t=-0.19, p=0.86). Conclusion: This study provides preliminary evidence of the potential effectiveness of using a music protocol to improve the performance of autobiographical memory in patients with Alzheimer's Disease. Doi: 10.28991/esj-2021-01304 Full Text: PDF
Support Directional Shifting Vector: A Direction Based Machine Learning Classifier
Authors: Kowsher Md. , Hossen Imran , Tahabilder Anik , Prottasha Nusrat Jahan , Habib Kaiser , Azmi Zafril Rizal M. 
Published: October 2021

Machine learning models have been very popular nowadays for providing rigorous solutions to complicated real-life problems. There are three main domains named supervised, unsupervised, and reinforcement. Supervised learning mainly deals with regression and classification. There exist several types of classification algorithms, and these are based on various bases. The classification performance varies based on the dataset velocity and the algorithm selection. In this article, we have focused on developing a model of angular nature that performs supervised classification. Here, we have used two shifting vectors named Support Direction Vector (SDV) and Support Origin Vector (SOV) to form a linear function. These vectors form a linear function to measure cosine-angle with both the target class data and the non-target class data. Considering target data points, the linear function takes such a position that minimizes its angle with target class data and maximizes its angle with non-target class data. The positional error of the linear function has been modelled as a loss function which is iteratively optimized using the gradient descent algorithm. In order to justify the acceptability of this method, we have implemented this model on three different standard datasets. The model showed comparable accuracy with the existing standard supervised classification algorithm. Doi: 10.28991/esj-2021-01306 Full Text: PDF
Bayesian Approaches for Poisson Distribution Parameter Estimation
Authors: Supharakonsakun Yadpirun 
Published: October 2021

The Bayesian approach, a non-classical estimation technique, is very widely used in statistical inference for real world situations. The parameter is considered to be a random variable, and knowledge of the prior distribution is used to update the parameter estimation. Herein, two Bayesian approaches for Poisson parameter estimation by deriving the posterior distribution under the squared error loss or quadratic loss functions are proposed. Their performances were compared with frequentist (maximum likelihood estimator) and Empirical Bayes approaches through Monte Carlo simulations. The mean square error was used as the test criterion for comparing the methods for point estimation; the smallest value indicates the best performing method with the estimated parameter value closest to the true parameter value. Coverage Probabilities (CPs) and average lengths (ALs) were obtained to evaluate the performances of the methods for constructing confidence intervals. The results reveal that the Bayesian approaches were excellent for point estimation when the true parameter value was small (0.5, 1 and 2). In the credible interval comparison, these methods obtained CP values close to the nominal 0.95 confidence level and the smallest ALs for large sample sizes (50 and 100), when the true parameter value was small (0.5, 1 and 2). Doi: 10.28991/esj-2021-01310 Full Text: PDF
HAMZA-NÂME’NİN 70. CİLDİNDEKİ EKLERDE DUDAK UYUMU
Authors: TELLİ Burak 
Published: October 2021

Hamza-nâmeler, Hz. Hamza’nın hayatı etrafında meydana gelmiş, anlatıldığı coğrafyalarda ilgi görmüş kahramanlık hikayeleridir. İslamiyet sonrası Türk destanlarından kabul edilen bu anlatılar, Arap coğrafyasında doğmuş ve İran üzerinden Anadolu’ya ulaşmıştır. Her sözlü anlatıda olduğu gibi tarihî sürecinde birtakım değişimlere uğramış, Anadolu sahasında da bu değişimlere maruz kalmış ve 14. yüzyılda Hamzavî tarafından yazıya aktarılarak bir anlamda kalıcı hale getirilmiştir. Toplam 72 cildinin bulunduğu bilinen Hamza-nâmelerin bugün Anadolu’nun çeşitli kütüphanelerinde pek çok nüshası bulunmaktadır.
Bu çalışmaya konu olan nüsha İstanbul Üniversitesi Edebiyat Fakültesi Nadir Eserler Kütüphanesinde EFKND 2496 demirbaş kayıt numarası ile kayıtlı olan nüshadır. Bu nüsha Hamza-nâme külliyatının 70. cildidir. Söz konusu nüshanın istinsah tarihi müstensihin beyanına göre tam olarak 16 Eylül 1800’dür. Elimizdeki bu nüshada kullanılan ekler dudak uyumu bakımından incelenmiştir. Ekler sürekli düz ünlülü kullanılanlar, sürekli yuvarlak ünlülü kullanılanlar ve hem düz hem yuvarlak ünlülü kullanılanlar olmak üzere ele alınmıştır. Bu anlamda 13 adet sürekli düz ünlülü, 2 adet sürekli yuvarlak ünlülü, 17 adet de hem düz hem yuvarlak ünlülü kullanılan ek tespit edilmiştir. Toplam 32 ekin incelendiği bu çalışmada hiçbir ekin dudak uyumuna tam olarak bağlı olmadığı görülmüştür. İlaveten her ekin incelemesinde söz konusu ekin Eski Türkçe, Eski Anadolu Türkçesi ve 16, 17 ve 18. yüzyıllardaki dudak uyumu durumu verilmiştir.
Comparative assessment, optimization and characterization of bioactive constituents from Amaranthus species: An indigenous lesser-known vegetables of India
Authors: Chikane Tejashree , Patil Sonal , Bhushette Pravin , Sonawane Sachin Kalidas 
Published: October 2021

Amaranthus Tricolor L. (red amaranth) and Amaranthus Viridis (Green amaranth) are Amaranthaceae members, widely cultivated in Asia and consumed as a leafy vegetable in many parts of the world. This study deal with the nutritional and functional, and biochemical characterization of A. Tricolor and A. viridis . Single-factor experiments and Box Behnken Design (BBD) were used to optimize the extraction process for the phenolic compound from A. Tricolor and A. viridis . The BBD shows that 11.87mg/g phenolic extract of A. Tricolor produced at the optimal condition of solid to water ratio (1:15), temperature (30°C), and time (15 min). Similarly, A. viridis isolated 18.36mg/g of phenolics at optimal condition solid to liquid ratio (1:30), temperature (30°C), and time (60 min). The radical scavenging activity of A. Tricolor and A. viridis shows 63.52% and 19.27%, respectively, by the DPPH method. The bioactive compounds 3,4,5-Trihydroxystilbene and caffeic acid were found in A. Tricolor, and in A. viridis it showed caffeic acid, which was identified using LC-MS/MS.
PROFITABILITAS DAN EVALUASI KINERJA PRODUK AGROINDUSTRI RUMAH TANGGA GULA KELAPA KECAMATAN LAIS KABUPATEN BENGKULU UTARA PROVINSI BENGKULU
Authors: Fitri Efa Yulita , Nusril Nusril , Reswita Reswita 
Published: October 2021

In the Home Industry of coconut sugar, the cost and profit calculation is still conventional. Profit calculation is needed in order to get the maximum profit of the business. The company's profit is related to cost, sales volume and selling price. One of the analytical tools that can be used is Cost Volume Profit (CVP) analysis. Profitability is a benchmark of the company's performance to generating the net income. The research aim to analyze the income, breakeven point, profitability ability and sensitivity, also analysing consumer perception about attribute level of importance and satisfaction of coconut sugar product in Dusun Hibrida, Pal 30 Village, Lais District, North Bengkulu Regency, Bengkulu Province. From sales of coconut sugar products amounted to Rp.60.183,47 per production. Which the profitability of coconut sugar products is 46%. If product performance exceeds the consumer expectations, they will feel satisfied. Importance Performance Analysis (IPA) is used to maping the relationship between importance and performance of each product attribute. The most important attributes and have good performance related to consumers is coconut sugar hygiene, taste, and food / beverages, coconut sugar color, durability, ease of accessing the product, and coconut sugar solubility, that’s attributes need to be maintained.