bluuebunny/crossref_metadata_2025 huggingface dataset:
OUTER CYLINDRICAL SPACES OF A HOLLOW CYLINDER OF FINITE LENGTH
Authors: Afanasyev Aleksandr A.
Published: December 2023

Introduction. The solution of the Laplace equation by the method of separation of Fourier variables for cylindrical domains makes it possible to study electromechanical devices in 3D format.

The purpose of the study is to obtain analytical expressions for magnetic potentials and inductions of external three-dimensional spaces of electromechanical devices in a cylindrical coordinate system.

Materials and methods. The unknown constants in the expressions for the regions under consideration are found from the boundary conditions of the magnetic field at the common boundaries of the electromechanical device with its outer space: the scalar magnetic potentials and magnetic inductions are the same, the current sheets experience a jump. When obtaining analytical expressions, the methods of mathematical physics were used.

Research results. To find the Fourier constants, the outer three-dimensional spaces of classical electromechanical devices (generators, motors) are considered, which in a cylindrical coordinate system are represented by both hollow and solid cylinders joining the active regions of the devices with their cylindrical or end surfaces. General expressions for magnetic potentials and inductions of external spaces are obtained based on the solution of the Laplace equation as the Sturm–Liouville problem by the Fourier method of separation of variables. The magnetic fields of the outer spaces of the original hollow cylinder are analyzed: an outer cylinder with an infinitely large radius; internal solid cylinder; end cylinders of finite length. These data make it possible to increase the required number of equations to find the required number of Fourier constants in the analytical calculation of electromechanical devices by the method of separation of variables.

Findings. Analytical expressions for the boundary values of magnetic potentials and inductions of the external space adjacent to the active regions of electromechanical devices with air gaps of both radial and axial form are obtained.
NUMERICAL AND LABORATORY SIMULATION OF TRANSFORMER SATURATION DEPENDING ON THE INITIAL PHASE OF THE CURRENT
Authors: Andreev Oleg N. , Vasileva Lidia N. , Matveev Evgeniy K. , Slavutskiy Aleksandr L.
Published: December 2023

In case of short circuits in electric power systems, emergency modes are possible, accompanied by saturation of transformers. With them, significant distortion of current signals occurs in the secondary winding of the transformer with the appearance of an aperiodic component and harmonics, the level of which is comparable to the signal at the main industrial frequency. The requirements for relay protection and automation devices imply the need to determine the time from the onset of the transient process to the onset of distortion of the current signal in the secondary winding.

The purpose of the study is to analyze the saturation of the transformer depending on the initial phase of the transition process.

Materials and methods. The PSCAD platform was used to model the power system section. The model makes it possible to qualitatively describe the saturation of a step-down transformer in the event of a short circuit on the low side, taking into account hysteresis phenomena in the magnetic system. Experimental verification was carried out in laboratory conditions using a measuring (intermediate) current transformer.

Results. It is shown that, depending on the phase of the current at the moment of the beginning of the transient process, the pattern of saturation and, accordingly, the distortion of the current changes significantly. The distortion of the time waveform of the current signal in the secondary winding of the transformer can begin both after fractions of the period of the power frequency signal, and after several periods.

Conclusions. The assessment of transformer saturation modes should be carried out taking into account the fact that the initial conditions for transient processes during short circuits are random. In the analysis of such processes, it is necessary to take into account the phase shift between current and voltage.
Fötal Gelişim Süresince Sığır Karaciğerinde İnterlökin-37 ve Reseptörünün İmmunohistokimyasal Lokalizasyonu
Authors: TOPALOĞLU Uğur , AKBALIK Mehmet Erdem
Published: December 2023

Karaciğer, proteinlerin üretimi ve metabolik homeostazın sürdürülmesinin yanı sıra, lokal immün düzenleyici ortamın korunmasındaki rolü nedeniyle de kritik öneme sahip temel bir organdır. Karaciğerde bulunan parankimal ve parankimal olmayan hücreler, uyaranlara cevap amacıyla sitokinlerle bağlantıya geçerek homeostazın devamlılığı için iş görürler. Bu çalışma, sığırlarda fötal karaciğerde interlökin-37 (IL-37) ve reseptörünün lokalizasyonu, farklılıklarının karşılaştırılması ve olası fizyolojik etkileri belirlemek için tasarlandı. Çalışmanın materyalini, özel mezbahalardan temin edilen sağlıklı 27 Holstein sığır fötusu oluşturdu. Fötusların yaşları hesaplandı ve fötuslar 3 aylık dönemlerden oluşan üç gruba ayrıldı. Her fötustan karaciğer örnekleri alınıp rutin histolojik işlemleri takiben immunohistokimya metodu uygulandı. Bunun sonucunda; IL-37’nin gebeliğin ilk döneminde sadece bazı hepatik arter ve vena interlobularislerde, ikinci ve üçüncü dönemde ise hepatositlerde; reseptörünün hepatositler ve özellikle ikinci dönemde hemopoietik adacığındaki hücrelerde değişik yoğunluklarda ekprese edildiği gözlendi. Sonuç olarak, IL-37’nin endotel ve kas hücrelerinin çoğalma ve farklılaşmasında; reseptörünün adacıktaki hücrelerin olgunlaşmasında; her ikisinin karaciğerdeki metabolik olayların düzenlenmesinde ve bağışıklık fonksiyonlarına katkı sunmada önemli etkilere sahip olabileceği düşünülmüştür.
Relationship of Age of Onset of Epilepsy to History of Febrile Seizures and Neurocognitive Deficit Among Hausas of Northern Nigeria
Authors:   Department of Psychiatry, Aminu Kano Teaching Hospitals/Bayero University Kano, Nigeria, Abdullahi Aminu , Taura Magaji ,   Department of Anatomy, Faculty of Basic Medical Sciences, Bayero University Kano, Nigeria, Adamu Lawan ,   Department of Anatomy, Faculty of Basic Medical Sciences, Bayero University Kano, Nigeria
Published: December 2023

Fever is characterized by increase in the temperature of nervous tissues which could enhance the rate, or magnitude of neuronal firing, leading to seizures. This study was designed to investigate the relationship between the age of onset of seizure with gender, history of febrile seizure and neurocognitive deficit among the Hausas of Northern Nigeria. It was a prospective study involving 105 epilepsy patients (61 males and 44 females) of a wide age spectrum. A Pearson’s Chi square was used to establish a relationship between the variables of interest. The data was analyzed using SPSS version 20 with p < 0.05 as level of significance. The result showed that there was no gender difference in the age of onset of seizure in the study group. A relationship was observed between age of onset of seizure with history of febrile seizure (χ2= 18.01, p < 0.001) and neuronal deficit (χ2= 12.93, P= 0.002). A significant relationship was also noticed between neuronal deficit and febrile seizure (χ2= 4.02, p = 0.045). In conclusion, age of onset of febrile seizure may be one of the markers to be used in ruling out some of the epilepsy associated disorders or problems.
The Risk of Amphetamine-Related Stimulants to Users and the General Population in Nigeria
Authors:   Department of Anatomy, Afe Babalola University, Ado-Ekiti, Nigeria, Adeniyi Philip , Ishola Azeez ,   Department of Anatomy, Afe Babalola University, Ado-Ekiti, Nigeria, Olabiyi Ayodeji ,   Department of Biochemistry, Afe Babalola University, Ado-Ekiti, Nigeria, Olatunji Babawale ,   Biological Sciences, Afe Babalola University, Ado-Ekiti, Nigeria, Richard Akele ,   Department of Medical Laboratory Science, Afe Babalola University, Ado-Ekiti, Nigeria, Sanya Joseph ,   Department of Physiology, Afe Babalola University Ado-Ekiti, Nigeria
Published: December 2023

In different communities across the globe, we see more of divergence from normal and/or expected behaviour; some psychotic in nature while others are neurodegenerative diseases of unknown origin. However, the use or exposure to some psycho stimulants at any stage of an individual’s development may not be unconnected with these developments. The aim of this review is to enlighten policy makers across the globe to safe guard the rest of the populace from the psycho-social effects of the proliferation in the unlawful production and use of Amphetamine (AMPH) and its derivatives in our society. A number of amphetamine derivatives, such as AMPH and methylamphetamine (METH), are considered dopaminergic neurotoxicants; they usually resulted in long-term depletions of striatal dopamine that is accompanied by neuroinflammation and by changes indicative of neuronal terminals degeneration.
Allium sativum alters the Cyto-Architecture of the Medial Prefrontal Cortex and Neurobehaviour of Adult Wistar Rats
Authors:   Department of Anatomy, Faculty of Basic Medical Sciences, University of Uyo, Uyo, Nigeria, Muonagolu Ngozi , Ekong Moses ,   Department of Anatomy, Faculty of Basic Medical Sciences, University of Uyo, Uyo, Nigeria
Published: December 2023

Consumption of vegetables and fruits has been reported to protect humans against oxidative damage by inhibiting free radicals and reactive oxygen species. Allium sativum is a plant whose beneficial effects have been attributed to its role in oxidation. This study therefore investigated the effects of Allium sativum extract on the medial prefrontal cortex and neurobehaviour of male albino Wistar rats. Twenty-four adult male albino rats were divided into 4 groups of 6 rats each. The control received 1 ml of distilled water orally, while test groups received oral doses of 78 mg/kg (low dose), 156 mg/kg (medium dose) and 312 mg/kg (high dose) body weight of the Allium sativum extract respectively for 2 weeks. Thereafter, spontaneous alternation behavioural test was carried out, and immediately the rats were anaesthetized with 50 mg/kg of ketamine hydrochloride (i.p.), and perfusion-fixed with 10% buffered formalin. The whole brains were removed and the medial prefrontal cortex excised and processed for histological studies using haematoxylin and eosin and Cresyl fast violet stains. Neurobehavioral test revealed higher spontaneous alternation from the medium dose group compared with the other groups. The prefrontal cortical sections showed hypertrophy, hyperplasia, loss of brain cellular membranes and Nissl substance. In conclusion, Allium sativum modulates spontaneous alterations, and cause alterations in cellular integrity in the medial prefrontal cortex
Effect of Sub-Acute Insulin Treatment on Short-Term Non-Spatial Working Memory in Mice
Authors:   Department of Human Physiology, Faculty of Basic Medical Sciences, Bayero University, Kano, Nigeria, Yarube Isyaku , Ayo Joseph ,   Department of Veterinary Physiology, Faculty of Veterinary Medicine, Ahmadu Bello University, Zaria, Nigeria, Magaji Rabiu ,   Department of Human Physiology, Faculty of Medicine, Ahmadu Bello University, Zaria, Nigeria, Umar Isma’il ,   Department of Biochemistry, Faculty of Science, Ahmadu Bello University, Zaria, Nigeria
Published: December 2023

Insulin is well known as a trophic hormone that regulates glucose, protein and lipid metabolism in target tissues. It was, until recently, considered as a peripheral hormone that had no effect on the central nervous system. It is now well established that insulin occurs in the brain where it exerts many physiological effects. The aim of the study was to determine the effect of sub-acute insulin administration on non-spatial working memory in mice. Twelve mice of both sexes, weighing between 18 - 22 g, were divided into two groups and treated with either insulin or de-ionized water (control) for seven days. Short-term working memory was assessed using novel object recognition task. Time spent exploring the objects did not differ between the groups. Novel object recognition and discrimination ratio was also similar for the control and insulin-treated animals. It is concluded that sub-acute administration of insulin has no effect on short-term non-spatial working memory in treated mice.
Black Seed Oil Improves Motor and Anxiety-Like Behaviours and Cerebellar Cyto-Architectonic in Adult Male Wistar Rats
Authors:   Department of Anatomy, Faculty of Basic Medical Sciences, University of Ilorin, Ilorin, Nigeria, Ajao Moyosore , Imam Aminu ,   Department of Anatomy, Faculty of Basic Medical Sciences, University of Ilorin, Ilorin, Nigeria, Amin Abdulbasit ,   Department of Physiology, Faculty of Basic Medical Sciences, University of Ilorin, Ilorin, Nigeria, Abdulmajeed Wahab ,   Department of Physiology, Faculty of Basic Medical Sciences, University of Ilorin, Ilorin, Nigeria, Ajibola Musa ,   Institute of Neuroscience, National Yang-Ming University, Shih-Pai, Taipei 11221, Taiwan, Alli-Oluwafuyi Abdulmusawir ,   Department of Pharmacology and Therapeutics, University of Ilorin, Ilorin, Nigeria, Balogun Wasiu ,   Advanced Medical and Dental Institute, Universiti Sains Malaysia, Penang, Malaysia, Olajide Olayemi ,   Department of Anatomy, Faculty of Basic Medical Sciences, University of Ilorin, Ilorin, Nigeria, Ibrahim Abdulmumin ,   Department of Anatomy, Faculty of Basic Medical Sciences, University of Ilorin, Ilorin, Nigeria
Published: December 2023

The objectives of this study were to investigate the potential efficacy of black seed oil (BSO) in motor activity, anxiety-like behaviour, cerebellar architecture and Purkinje morphometry in Wistar rats. Saline and black seed oil were administered to adult rats at 1 ml/kg orally for 14 days, and the rats were then subjected to behavioural tests to evaluate locomotor activity and anxiety-like behaviour using the open field and elevated plus mazes paradigms respectively. The cerebella were removed, processed and stained for cerebellar architectonic and Purkinje morphometry respectively. BSO significantly (P ≤ 0.05) increased frequency of line crossing, rearing frequency and total alternation, which are measures of motor activities. It increased open arm explorations, head dip frequency, decreased freezing period and closed arm entry, which are measures of anxiety-like behaviours and did not affect either the architec-tonics of the cerebellar cortices or the Purkinje morphometry when compared with the control. These results suggest that BSO may reduce anxiety related behaviours in Wistar rats.
DENİZ SUYUNUN FARKLI TABAKA KALINLIKLI KOMPOZİT PLAKALARIN DARBE DAVRANIŞINA ETKİSİ
Authors: ESENDEMİR Ümran , GÖKSU Özge
Published: December 2023

Bu çalışmada; deniz suyunun kompozit plakaların darbe davranışına zamana bağlı etkisi deneysel olarak incelenmiştir. Çalışmada 100x100 mm boyutlarında iki farklı kalınlıkta (2 mm ve 4mm) 8 ve 16 tabakalı plakalar kullanılmıştır. Deniz suyu ortamında 3 ve 6 aylık süreler boyunca numuneler kapalı bir kavanozda oda sıcaklığında bekletildikten sonra darbe testleri yapılmıştır. Deniz suyu ortamında bekletilen numuneler ile oda sıcaklığında bekletilen numuneler arasındaki kıyaslamalarda çökme, darbe enerjisi, maksimum kuvvet, hız ve zaman verileri kullanılmıştır. Deneysel çalışma sonucunda genel olarak numunelerin deniz suyunda bekleme süresi, darbe enerjisi arttıkça ve tabaka kalınlığı azaldıkça; kompozit numunelerin çökme değerlerinin arttığı, darbe dayanımlarının ise azaldığı görülmüştür. Darbe dayanımlarındaki en fazla azalma ise 6 ay deniz suyunda bekletilen 8 tabakalı ince numunelerde görülmüştür.
Analisis Faktor-Faktor yang Mempengaruhi Minat Mahasiswa Menjadi Nasabah Bank Syariah
Authors: Febrianto Hafizh Dwi
Published: December 2023

Penelitian ini bertujuan untuk mengetahui faktor-faktor yang mempengaruhi mahasiswa untuk menjadi nasabah bank syariah. Sampel yang digunakan adalah mahasiswa Ekonomi semester VII. Teknik pengumpulan data menggunakan kuesioner. Teknik analisis data dengan menggunakan regresi linier berganda melalui SPSS versi 23. Hasil analisis menunjukkan bahwa (1) Faktor pengetahuan mahasiswa berpengaruh positif terhadap minat mahasiswa untuk menjadi nasabah bank syariah, (2) Faktor persepsi mahasiswa berpengaruh positif terhadap minat mahasiswa untuk menjadi nasabah bank syariah, (3) Faktor Promosi berpengaruh positif terhadap minat mahasiswa untuk menjadi nasabah bank syariah, (4) Faktor pengetahuan, persepsi, dan promosi sama-sama secara simultan berpengaruh positif terhadap minat mahasiswa menjadi nasabah bank syariah.
Pengaruh Perkembangan Ekonomi Digital Terhadap Pendapatan Pelaku Usaha UMK di Kecamatan Kawalu Kota Tasikmalaya
Authors: Hilal Regian Syaeful
Published: December 2023

Penelitian ini bertujuan untuk menganalisis pengaruh media ekonomi digital, strategi, modal, jam kerja, dan lama usaha terhadap pendapatan pelaku usaha UMK di Kecamatan Kawalu Kota Tasikmalaya. Data dalam penelitian ini diperoleh dari Badan Perencanaan Pembangunan, Penelitian dan Pengembangan Daerah, penyebaran kuesioner melalui google form dan sumber-sumber lainnya yang terkait dengan penelitian ini. Penelitian ini menggunakan metode Analisis Regresi Linear Berganda dengan SPSS 25 sebagai alat analisis. Berdasarkan hasil analisis yang dilakukan diperoleh bahwa variabel ekonomi digital, strategi, modal, jam kerja, dan lama usaha berpengaruh signifikan terhadap pendapatan.
Perbandingan Prestasi Antara Mahasiswa Fisika dengan Mahasiswa Pendidikan Fisika
Authors: Salsabila Puti Azka , Zihni Wilda Eka Ibra , Setiaji Bayu
Published: December 2023

Pendidkan adalah hal penting karena bisa meningkatkan kualitas pada sumber daya manusia. Proses menempuh pendidikan yang cukup dikenal ada dua, yaitu proses dalam kegiatan kulikuler dan proses dalam kegiatan ekstrakulikuler. Kedua proses tersebut mampu membuat sumber daya manusia lebih meningkat dan memudahkan kita dalam mengenali potensi minat dan bakat yang ada dalam diri kita. Penelitian yang sedang dilakukan ini bertujuan untuk mengetahui apakah ada perbedaan antara perolehan prestasi pada mahasiswa fisika dan mahasiswa pendidikan fisika di Departemen Fisika Universitas Negeri Yogyakarta. Penelitian ini termasuk penelitian kuantitatif dimana datanya akan dianalisis menggunkan Uji Independent T-test. Sempel sasaran adalah perolehan data mahasiswa tahun 2020, 2022, dan 2023. Dengan jumlah data yang diperoleh 49 mahasiswa pendidikan fisika dan 36 mahasiswa fisika Uji T yang digunakan adalah independent t-test untuk membuktikan data yang digunakan yaitu normal dan homogen. Hasil dari penelitian ini adalah H0 diterima dan Ha ditolak artinya tidak perbedaan prestasi yang diperoleh pada data tahun 2020, 2022, dan 2023 antara mahasiswa fisika dengan mahasiswa pendidika fisika.
SUPPLY CHAIN RISK MANAGEMENT MODEL: CASE STUDY OF THE PRECAST CONCRETE COMPANY PT. ADI JAYA BETON DENPASAR
Authors:   Civil Engineering Study Program, Universitas Hindu Indonesia Denpasar, Muka I Wayan , Wahyuni Putu Ika ,   Master of Infrastructure and Environmental Engineering, Universitas WarmadewaDenpasar, Widiarca I Ketut ,   Master of Infrastructure and Environmental Engineering, Universitas WarmadewaDenpasar
Published: December 2023

Risk management is the process of measuring or assessing risk and developing management strategies. Risk analysis in the supply chain is an important issue, because companies are often not aware of risks until these risks arise and become a problem for the company. This research aims to analyze supply chain risks in the precast concrete industry. The data used is qualitative and quantitative data with primary data sources and secondary data. The data collection techniques used were observation, interviews, questionnaires, literature study and documentation study. The data analysis technique used is risk analysis with a probability and impact matrix. The research results show that 1) There are 20 identified supply chain risks in the precast concrete industry with a made to order system. 2) Supply chain risks in the precast concrete industry are categorized into four levels, namely a minor level of four risks, a moderate level of 12 risks, a major level of three risks, and a critical level of one risk. 3) Supply chain risk handling in the precast concrete industry can be carried out based on the level of risk, namely by accepting risk, mitigating risk, sharing risk, and avoiding risk.
INVESTIGATION DYNAMIC PROPERTIES OF SOIL (THE DAMPING RATIO AND SHEAR MODULUS) FOR RESISTANCE DESIGN AT THE LNG BAC LIEU GAS PIPELINE PROJECT BY CYCLIC TRIAXIAL TEST
Authors:   Faculty Of Geology And Petroleum Engineering, HoChiMinh City University Of Technology-VNU, Ba Ngoc Thai , Trong Vinh Bui ,   Faculty Of Geology And Petroleum Engineering, HoChiMinh City University Of Technology-VNU, Thanh Phong Le ,   Faculty Of Geology And Petroleum Engineering, HoChiMinh City University Of Technology-VNU
Published: December 2023

The LNG Bac Lieu gas pipeline project is part of the 3.200MW LNG power plant complex in Bac Lieu province. The entire pipeline will be designed underground at the sea floor to be directly subjected to dynamic loads (earthquakes, waves ...). Soil response to dynamic loads is measured by the soil's dynamic properties such as dynamic strength, shear modulus and damping ratio. These soil parameters are very significant to study the movement of the ground as well as the local reaction of soil sediments under the effect of loads and cyclic soil structure. Therefore, it is very important to investigate the earth's dynamic properties (dynamic strength, damping ratio and shear modulus) to design seismic resistance for this project. From the relevant literature, it is known that the dynamic properties of the soil are influenced by the soil type and the position of the soil structure. 6 soil samples were examined randomly at different depths to determine soil properties. When studying dynamic strength, people often use direct test methods such as torsion cutting, cyclic flat cutting and cyclic triaxial test to determine the dynamic strength (dynamic resistance) of the soil. In which, the cyclic triaxial test method allows the simulation of real-world conditions to be easily simulated. The results of applying this method to soft clay and clay phases show that the damping ratio is 0.117-0.162D, the average is 0.136D, the shear module is 1650-2632kPa, the average is 2141kPa.
Unveiling Gold Investment Preferences: A Comprehensive Analysis of Factors Shaping Intention to Invest in Gold Installment Plans
Authors:   Master of Business Administration, School of Business and Management, Institut Teknologi Bandung, Jl. Ganesha No.10 Bandung 40132, Indonesia, Sulaiman Ibnu , Aprianingsih Atik ,   Master of Business Administration, School of Business and Management, Institut Teknologi Bandung, Jl. Ganesha No.10 Bandung 40132, Indonesia
Published: December 2023

This study investigates the determinants influencing Indonesian consumers’ intention to invest in gold installments, examining the intricate dynamics shaped by economic recovery and post-COVID-19 behavioral shifts. Grounded in Kotler and Armstrong’s Model of Buyer Behavior, the research employs Structural Equation Modeling Partial Least Square (SEM-PLS) to test hypotheses derived from an extensive survey. Key findings reveal that price, promotion, and return significantly impact consumer attitudes, subsequently influencing the intention to invest in gold installments. However, security, risk, and ease of mechanism did not emerge as significant determinants. The study’s robust framework is statistically validated through R-squared values, indicating its explanatory power. While contributing valuable insights, the research acknowledges limitations such as a focused demographic and cross-sectional design, suggesting avenues for future research to diversify samples and adopt longitudinal approaches. Qualitative methods and exploration of cultural and regional variations within Indonesia are recommended for a more nuanced understanding. This study provides strategic insights for stakeholders in the gold investment market, emphasizing the need for considerations in pricing, promotion, and perceived returns to align with evolving consumer attitudes.
The Influence of Employee Competency, Budget Planning and the Bureaucratic Environment on Budget Implementation with Organizational Ethical Culture as a Moderation
Authors:   Faculty of Economics and Business, Syiah Kuala University, Ananda Suci , Nadirsyah Nadirsyah ,   Faculty of Economics and Business, Syiah Kuala University, Abdullah Syukriy ,   Faculty of Economics and Business, Syiah Kuala University
Published: December 2023

This research aims to examine the influence of Employee Competency, Budget Planning and Bureaucratic Environment on Budget Implementation with Organizational Ethical Culture as a Moderation. The data collected in this research is primary data. The primary data used was in the form of distributing questionnaires to respondents, namely SKPK Civil Servants (PNS) in Central Aceh Regency. The number of respondents to this research was 370 people. The results of the research show that both simultaneously and partially employee competency, budget planning and bureaucratic environment influence budget implementation in SKPK Central Aceh District. Then the ethical culture of the organization moderates the relationship between Employee Competency, Budget Planning and Bureaucratic Environment and simultaneously influences Budget Implementation at the Central Aceh District SKPK.
Valuation and Financial Performance Analysis of Pt. Indika Energy
Authors:   School of Business and Management, Bandung Institute of Technology, Rifdah Nur’azmi , Damayanti Sylviana Maya ,   School of Business and Management, Bandung Institute of Technology
Published: December 2023

According to a coal market update study by the International Energy Agency, coal prices have been highly volatile during the previous five years, significantly influencing Indonesian coal companies’ operations and substantially impacting income and stock values. Furthermore, the increased global attention to addressing climate change is anticipated to lead to stricter enforcement of carbon emissions laws by 2030. PT. Indika Energy is an energy company that highly relies on coal prices, accounting for 75% to 88% of its revenue. Indika has stated four strategies, two of which are Efficiency and Synergy Optimization, and Prudent management. However, the result of profitability performance is not aligned with the company strategy. This research proposes to evaluate the comprehensive financial performance, assess the intrinsic value using the DCF-FCFF approach, and estimate PT’s price-to-earnings (P/E) ratio and Market to Book (M/B) ratio. Indika Energy. This study uses several ratios, including liquidity, profitability, activity, and leverage ratio. The study revealed that the company demonstrates the worst liquidity performance and is the least profitable among its peers. However, the company has managed to maintain the most significant leverage ratio. According to the DCF valuation, the company appears to be undervalued, with an intrinsic value of IDR 3,247, while the market value is IDR 1,540. The company is also undervalued based on its relative valuation metrics. It has a price-to-earnings ratio (PER) of 1.06 and a price-to-book value (PBV) of 0.45, compared to the industry average PER of 5.15 and PBV of 5.27. Hence, the company should minimize its reliance on subcontractors by optimizing its cost structure.
Simple Multi-Attribute Rating Technique for Warehouse Location Selection (Case Study: PT. PPT)
Authors:   School of Business Management, Bandung Institute of Technology, Dewi Nerissa Arviana , Siallagan Manahan Parlindungan Saragih ,   School of Business Management, Bandung Institute of Technology
Published: December 2023

Indonesia’s Manufacturing Industry, encompassing processing and non-oil and gas processing, grew in Q3 of 2022, contributing 17.88% and 16.10% to GDP. Transportation and storage played a significant part, with a 15.93% year-on-year growth in Q1 2023, highlighting the sector’s importance. PT. PPT is a sub-holding of one of Indonesia’s companies. The company manages to trade PP/PE significantly from more sources (import, local producer, or local trader). This research will determine and analyze the criteria for the selection of warehouse locations for PT. PPT analyzes the weight of each criterion at each location in the warehouse location selection process for PT. PPT and obtain the priority location for PT. PPT to build a new warehouse. This research aims to guide and help the decision makers to choose and find a suitable location based on the Centre of Gravity (CoG) analysis conducted by a third-party consultant. The five locations resulting from the Centre of Gravity (CoG) as alternatives will be analysed with Kepner-Tregoe Analysis in the decision-making process, using Situation Appraisal defined in Business Issues. The author then employs a Rich Picture and Fishbone Diagram to assess the scenario or the process of select the new warehouse. The decision analysis was carried out in eight stages using the one of Multi-Criteria Decision Making (MCDM) method, which is the Simple Multi-Attribute Rating Technique (SMART). Lastly, using the preceding analysis, undertake a Potential Problem Analysis. The major criterion is the distance to the customer, which aligns with the company’s emphasis on customer satisfaction. Demand growth affects warehouse capacity, with more growth necessitating a larger facility. Distance from suppliers reduces delivery lead time, and the size of the land must accommodate demand growth and product capacity for PT. PPT.
Capital Budgeting Analysis of Broiler Farm Construction in Central Java
Authors:   School of Business and Management, Institut Teknologi Bandung, Indonesia, Amijoyo Guritno Suro
Published: December 2023

Indonesia, positioned as a prominent emerging market, draws its economic strength from a diverse mix of agriculture, manufacturing, and a thriving services sector. The nation’s strategic location, coupled with abundant resources and a youthful population, forms a resilient economic foundation that has contributed to its sustained growth. One notable sector that plays a pivotal role in meeting the country’s protein needs is the poultry industry. Chicken consumption has risen to 7.41 kilograms per capita yearly, indicating a substantial 9.23% increase from 2020. Against this backdrop of economic vibrancy and shifting consumption patterns, PT.XYZ, a key player in the poultry industry, is strategically positioning itself for expansion. Recognizing the immense potential within Indonesia’s dynamic poultry sector, PT.XYZ is planning to enhance its broiler meat production capabilities through the construction of new broiler chicken farm facilities. This research endeavours to provide PT.XYZ with a comprehensive feasibility analysis for the envisioned broiler chicken farm facilities. The proposed facilities are designed to produce a significant volume, with a capacity of up to 16.8 million chickens annually, equivalent to approximately 29,3 million kilograms of chicken meat per year. The construction timeline is strategically set for two years, spanning from September 2024 to October 2026. The research findings present a compelling case for the feasibility of PT.XYZ’s ambitious broiler farm construction project. Financial indicators reveal a positive Net Present Value, an Internal Rate of Return that exceeds the Weighted Average Cost of Capital (WACC), and a Payback Period of five years, aligning with the company’s strategic plans. These results underscore the financial viability and attractiveness of the proposed expansion.
Indicators to Measure the Influence of Celebrity Personality and Humor Ads on Consumer Purchasing Intentions
Authors:   Master of Management Student, Telkom University, Bandung, Indonesia, Hazimah Zulfa , Indrawati Indrawati ,   Professor in Digital Marketing, Telkom University, Bandung, Indonesia
Published: December 2023

Humorous advertising is considered the most effective marketing tool. However, on the other hand, consumers still identify the credibility of celebrities who star in advertisements. Companies need to determine which aspects of these two things are effective in increasing consumer purchasing intentions according to the type of product and target market. Apart from that, this research also measures endorsed brand credibility, transfer of brand image, attitude toward ads and e-word of mouth. This measuring tool was tested on a sample of 30 women who had seen a funny endorsement video from a famous comedian digital in Indonesia. The data was processed using IBM SPSS Statistics 26. The test results showed that the measuring instrument consisting of 7 constructs and 49 items met the validity and reliability criteria. Therefore, this particular measurement instrument was prepared for use in further research purposes.
Analysis of the Effect of Third Party Funds, Non-Performing Loans, Loan to Deposit Ratio on Lending Before and After Covid-19 with Profitability as a Moderating Variable in Conventional Banks Listed on the Indonesian Stock Exchange for The Period 2017 – 2022
Authors:   Faculty of Economics and Business, University of North Sumatra, Medan, Sitorus Ricky Martin , Muda Iskandar ,   Faculty of Economics and Business, University of North Sumatra, Medan, Rujiman Rujiman ,   Faculty of Economics and Business, University of North Sumatra, Medan
Published: December 2023

This study aims to analyze the factors that influence lending in banking companies on the Indonesia Stock Exchange, with a focus on third-party funds, non-performing loans, and loan-to-deposit ratios. Profitability is also evaluated as a moderating variable. The research object includes 40 conventional banks of the Indonesia Stock Exchange from 2017 to 2022. The analysis method involved multiple linear regression, moderated regression analysis, and paired sample t-tests. The results show that third-party funds have a significant positive effect on lending. Non-performing loans also affect lending positively although not significantly. Loan to deposit ratio has a positive and significant effect on lending. There is a significant difference in the level of third-party funds and loan-to-deposit ratio before and after the Covid-19 pandemic. However, there is no significant difference in the level of non-performing loans. Profitability does not moderate the effect of variables on lending.
ON STRONGLY BASE-TWO FINITE GROUPS WITH TRIVIAL FRATTINI SUBGROUP: CONJUGACY CLASSES AND CORE-FREE SUBGROUP
Authors:   Department of Mathematics, Akwa Ibom State University, Nigeria, John Michael N. , U. Udoakpan Itoro ,   Department of Mathematics, University of Portharcourt, Nigeria
Published: December 2023

This paper explores finite groups G with a focus on those that are strongly base-two and possess a trivial Frattini subgroup. The concept of base size, denoted by b(G, H), for the action of G on core-free subgroups H, plays acrucial role. The paper investigates the number of conjugacy classes of core-free subgroups with base size exceeding 3, denoted by α(G). A group is considered strongly base-two if α(G) ≤ 1, indicating that nearly all faithful transitive permutation representations of G exhibit a base size of 2. The study delves into the characterization of such groups, shedding light on their properties and structures.
Tiktok as Rhyming Media in Thematic Learning Platform: Phenomenological Study at SD Negeri 3 Duwet Tumpang Malang
Authors:   ', Ahmad Harun , Sumarti Endang ,   ', Sriwulandari Yunita Anas ,   '
Published: December 2023

This study explores the use of TikTok as a rhyming medium in a thematic learning platform at SD Negeri 3 Duwet Tumpang Malang with a phenomenological approach. The goal is to make a new contribution to the development of innovative and exciting learning methods in elementary schools. The results of the study show that the use of TikTok increases student engagement, motivation, and participation in learning. Students show a positive response to learning that is more fun and creative through rhyming videos. Teachers welcomed this innovation despite facing some challenges in class preparation and management. Supporting factors include student enthusiasm and opportunities to express creativity while inhibiting factors include the availability of technological infrastructure and potential distraction of non-academic content. Thus, TikTok can be considered an effective additional tool to improve the quality of thematic learning at the elementary school level.
Analysis of the Effect of Self-Regulation on Burnout in Athletes at the Samarinda Futsal Club
Authors:   Sports Coaching Education Study Program, Postgraduate Program, Yogyakarta State University, Jalan Colombo No. 1, Karangmalang, Yogyakarta 55281, Indonesia, Astama Muhammad Noor , . Tomoliyus ,   Sports Coaching Education Study Program, Postgraduate Program, Yogyakarta State University, Jalan Colombo No. 1, Karangmalang, Yogyakarta 55281, Indonesia, Irianto Djoko Pekik ,   Sports Coaching Education Study Program, Postgraduate Program, Yogyakarta State University, Jalan Colombo No. 1, Karangmalang, Yogyakarta 55281, Indonesia
Published: December 2023

This research aims to analyze the relationship betweenself-regulationagainst burnout in athletes at the Samarinda futsal club. In this dynamic sporting era, understanding the psychological factors that influence athletes' performance in futsal is crucial. These factors includeself-regulation. The research used quantitative methods and survey design with a sample of athletes at the Samarinda futsal club. The results of data analysis show a positive correlation betweenself-regulationon burnout (r = 0.218, p < 0.01). The findings highlight the importance of managingself-regulation to prevent and overcome burnout. Furthermore, regression analysis shows thatself-regulation (β = 0.218, p = 0.002) has a significant influence on burnout. This statistical model provides moderate predictions of burnout levels, self-regulation as the focus of coaching and training strategies at the Samarinda futsal club. The implications of this research support the development of coaching programs that focus on managementself-regulationto prevent and overcome burnout.
A Multifaceted Exploration of Loyalty in SSB: Links between Training Environment, Coach Leadership, and Participant Satisfaction
Authors:   Sports Coaching Education Study Program, Postgraduate Program, Yogyakarta State University, Jalan Colombo No. 1, Karangmalang, Yogyakarta 55281, Indonesia, Purba Tri Fandes , , Tomoliyus ,   Sports Coaching Education Study Program, Postgraduate Program, Yogyakarta State University, Jalan Colombo No. 1, Karangmalang, Yogyakarta 55281, Indonesia, Kurniawan Faidillah ,   Sports Coaching Education Study Program, Postgraduate Program, Yogyakarta State University, Jalan Colombo No. 1, Karangmalang, Yogyakarta 55281, Indonesia
Published: December 2023

This study aims to investigate the multifaceted nature of participant loyalty in School Soccer (SSB) with a focus on the link between the training environment, coach leadership, and participant satisfaction. Through survey, interview and observation approaches, data was collected from participants at SSB Pekanbaru, Riau. The results of the correlation analysis show that there is a significant positive relationship between the training environment and trainer leadership, as well as between the training environment and participant satisfaction. These findings support the concept that a conducive training environment can increase the level of participant loyalty towards SSB. Trainer leadership was also shown to influence participant satisfaction, while participant satisfaction was significantly related to the level of participant loyalty. The regression model showed that the training environment, trainer leadership, and participant satisfaction could explain approximately 65.9% of the variation in participant loyalty. From the regression coefficient, participant satisfaction emerged as the most significant variable in influencing participant loyalty. The implication is that SSB management is advised to focus on improving the quality of the training environment and efforts to increase participant satisfaction in order to strengthen participant loyalty to the training program. This research contributes academic insight and a strong empirical basis for the development of more effective strategies and programs in increasing participant loyalty at SSB Pekanbaru, Riau.
Saudi Arabia's New Care Model and the Transformation of Health Care Kingdom's Vision 2030
Authors:   Ministry of Health, Saudi Arabia, Izzuldeen Ali Rashidah Jamal , A Alenezi Tagrid Masnad ,   Ministry of Health, Saudi Arabia, O ALdhafeeri Nawal Abdullah ,   Ministry of Health, Saudi Arabia, Ghannam Alrashdi Ashwaq lafi ,   Ministry of Health, Saudi Arabia, A Alenezi Nojood Moufreh ,   Ministry of Health, Saudi Arabia, W Alkhatami Mohammed Fahad ,   Ministry of Health, Saudi Arabia, Mater Alanazi Hanan Alari ,   Ministry of Health, Saudi Arabia, Nayir Alanazi Hanan Wanis ,   Ministry of Health, Saudi Arabia, Alruwaili Hamoud Mashhour Dhaifallah ,   Ministry of Health, Saudi Arabia, R Alenezi Abdulrahman Atallah ,   Ministry of Health, Saudi Arabia, G Alenzi Habiba Saleh ,   Ministry of Health, Saudi Arabia, Awadh Alanazi Bader Faleh ,   Ministry of Health, Saudi Arabia, Saleh ALjehani Aisha Mohamad ,   Ministry of Health, Saudi Arabia
Published: December 2023

"Vision 2030" was the framework adopted by the Kingdom of Saudi Arabia to guide its economic development and foster national expansion. The vision outlined the Kingdom's aspirations to establish itself as a global leader by accomplishing the following three primary objectives: a flourishing economy, a dynamic society, and an ambitious nation. In June 2016, the Kingdom initiated a national transformation program (NTP) in accordance with "Vision 2030" in order to achieve this objective. The transformation of health care is among the NTP's eight themes. Healthcare facilities in the Kingdom have a history of nearly a century. To attain the "vision 2030" objective, the Kingdom must modernize its health care system, despite significant strides in improving the health of its population in recent decades. The objective of this essay is to provide a description of the new Model of Care (MOC) as it pertains to the recent healthcare transformation in Saudi Arabia as outlined in the Kingdom's vision 2030. The MOC concept originated from a desire to comprehend the present condition and amass knowledge. It is predicated on the six systems of care (SOC): preventative care, premeditated interventions, pediatric and maternal care, critical issues, chronic ailments, and end-of-life care. The SOC is segmented across various "service layers" in order to facilitate individuals' recovery and restore their health when necessary. Twenty-seven of the forty-two interventions described in the new MOC are distributed across the six SOC, while the remaining fifteen are distributed across the numerous SOC. The completion of all MOC interventions will facilitate the Saudi health care system's transition to the "vision 2030" of the kingdom.
Improving Performance Based on Competency, Work Discipline and Leadership at the Bondowoso Regency Regional Revenue Agency
Authors:   Universitas Muhammadiyah Jember, Setyorini Dwi Memi , Qomariah Nurul ,   Universitas Muhammadiyah Jember, Putu Martini Ni Nyoman ,   Universitas Muhammadiyah Jember
Published: December 2023

Every organization, whether government-owned or private-owned, is required to continue to improve its performance in line with increasing competition in all lines of business. This research is aimed at analyzing and determining the impact of competence, work discipline and leadership on performance at the Bondowoso Regency Regional Revenue Agency. The population in this study were Bondowoso Regency Regional Revenue Agency employees, 67 Bondowoso Bapenda employees and 23 tax collection officers in each sub-district, so the total population in this study was 90 employees other than leaders. The entire population is used as a sample, so the sample in this study is a saturated sample. Description analysis, validity test analysis and reliability test as well as hypothesis analysis are used as analytical tools in this research. The results of this research are that competence, work discipline and leadership have a positive impact on the performance of Bondowoso Regency Regional Revenue Agency employees.
Mediation of Trust Variables: The Impact of Social Media Marketing on Purchasing Decisions at the Scarlet Fitriajaya Banyuwangi Outlet
Authors:   Universitas Muhamamdiyah Jember, Nurhaliza Dwi Aprilia , Qomariah Nurul ,   Universitas Muhamamdiyah Jember, Herlambang Toni ,   Universitas Muhamamdiyah Jember
Published: December 2023

Currently, cosmetic products to brighten the face are trending among teenagers and mothers. Demand for facial brightening products has increased significantly. This research aims to analyze and determine the impact of social media marketing on trust and purchasing decisions at the Scarlet Fitriajaya Banyuwangi Outlet. The research population was all Scarlet cosmetics users at the Scarlet Fitriajaya Banyuwangi Outlet. The number of samples was determined at 180 respondents with a minimum requirement of 10 times the number of variables studied (there are 3 types of variables). Descriptive analysis is used to describe respondents and research variables. Analysis of validity and reliability tests to test research measuring instruments. Hypothesis testing is also carried out to test the impact of independent and intervening variables on the dependent variable. The analysis results show that social media marketing has an impact on trust. Social media marketing has an impact on purchasing decisions. Trust has a positive impact on purchasing decisions.
Pandemi Covid-19 Sebagai Bentuk Overmacht Terjadinya Wanprestasi Kredit di Bank
Authors: Mual Yansen , Tjoanda Merry , Pariela Marselo Valentino Geovani
Published: December 2023

Introduction: The impact of Covid-19 is the weakening of the Indonesian economy, due to restrictions on activities in the business sector which show the majority of the implementation of the rights and obligations in the agreement.Purposes of the Research:  The purpose of this study is to find out whether the Covid-19 Pandemic is a Form of Overmacht Credit Default in Banking and How is Credit Default Settled Due to the Covid-19 Pandemic in Banking.Methods of the Research: The research method used is normative juridical research or literature study with a descriptive analytical research type which is a method that functions to describe or provide an overview of the object under study through legal sources.Results of the Research: The results of the research carried out must be understood that three things must be checked so that the persuasive situation clause can be applied. First, the facts must be beyond the control of the parties. Second, the ability of the parties to carry out their contractual obligations cannot be carried out due to the event that hinders them. Third, the parties have taken all steps to try to mitigate the risks that arise as a result of the event or the occurrence of such compelling circumstances. In the context of the spread of Covid-19, the first and second criteria of coercion can be said to have been met. The reason is that Covid-19 directly or indirectly has an impact on the performance and capacity of the parties so that it affects the ability to fulfill the agreement contained in the contract.