bluuebunny/crossref_metadata_2025 huggingface dataset:
Apparent power place in the instantaneous power of a linear quadripole with a sinusoidal current
Authors: Bialobrzheskyi O , Yakimets S
Published: December 2024

Purpose. Justification of the fallacy of using the concept of “apparent power” for quadripole circuits in alternating sinusoidal current circuits on the basis of the instantaneous power balance.

Methodology. The apparent power in electric power is a generalizing value of energy processes that researchers use provided that other power components are determined. Based on the analysis of known studies, some were found, in which the authors question such a role in apparent parent. The well-known provisions of the electrical engineering theory are used with the application of mathematical methods, in particular trigonometry, the Euler transformation and the complex numbers theory to determine the instantaneous power components of sinusoidal current and voltage.

Findings. The instantaneous power components of sinusoidal current and voltage are analytically determined in trigonometric and complex form. The corresponding vectors are represented graphically on complex planes of zero and doubled frequency. Accordingly, it is indicated which components of the instantaneous power correspond to the apparent power; in addition, the phase shifts of the latter on the corresponding complex planes are determined. For an elementary electrical circuit, they are defined for all elements of the circuit provided that the balance of instantaneous power (Tellejen’s theorem), active power, reactive power (Boucherot’s theorem) is observed.

Originality. It has been proven that the order of determining the active power as the difference between the maximum value of the instantaneous power and apparent power determined by the effective values of voltage and current in sinusoidal current circuits cannot be accepted as general. Using the example of a sinusoidal current an elementary electrical circuit, it was found that for an element of electric energy transmission, the amplitude of power fluctuations, which in certain cases is called “apparent power” in general, can be less than the instantaneous power average value - active power.

Practical value. The obtained results can be used to improve the power component compensation algorithms for series and parallel power active filters.
Ecological features of formation of landfill vegetation in Lviv Region (Ukraine)
Authors: Skrobala V. M , Skyba T. K , Popovych V. V
Published: December 2024

Purpose. Determination of the ecological features of the process of formation of vegetation cover on landfills in Lviv region by analysing the floristic composition of ecotopes of different stages of restoration succession.

Methodology. Phytoindication of ecological parameters based on ecological data of landfill vegetation; Data Mining methods; multidimensional coordination of plants based on Principle Component Analysis; statistical processing of ecotope data.

Findings. The phytoindicative assessment of habitat conditions of 5 ecological and coenotic groups and 16 subgroups of plant species from different ecotopes of landfills in Lviv region was carried out by six parameters: L – illumination, T – thermal regime, K – continentality, F – moisture regime, R – acidity, N – nitrogen content, points. The main regularity of ecotope formation at landfills in Lviv Region is the following structure of relationships between environmental parameters: with an increase in soil humidity, nitrogen content and soil pH, the indicators of illumination, temperature and continental climate decrease. The ecological equivalent of the increase in anthropogenic load in the conditions of landfill ecotopes is the increase in illumination, thermal regime, climate continentality, and nitrogen content. The ecological and coenotic space of the vegetation cover of landfills in Lviv region can be represented as a quadrangle, in the centre of which there are ruderal communities of the Chenopodietea class, communities of nitrified meadows on the banks of water bodies of the Agrostietea stoloniferae class and meadow communities of the Molinio-Arrhenatheretea class, and in the corners 1) communities of aquatic class Lemnetea, marsh class Phragmitetea and ruderal vegetation on waterlogged substrates of class Bidentetea; 2) communities of non-moral forest vegetation of class Quereo-Fagetea; 3) steppe communities of class Festuco-Brometea; 4) ruderal vegetation of class Artemisietea.

Originality. The ecological and coenotic space of landfills in Lviv region was assessed on the basis of the arrangement of vascular plants along the axes of complex ecological gradients. The results show that ruderal and meadow species occupying the central part of the territory are the most resistant to landfill conditions. The most vulnerable are steppe and hydrophilic vegetation located on the periphery of the general vegetation space of the landfill.

Practical value. Knowing the ecological parameters of flora species, it is possible to determine their position in the ecological and coenotic space of the landfill vegetation cover and predict their stability and dynamics.
Algorithm for assessing the model of the labor safety management in civil aviation of the Republic of Kazakhstan
Authors: Kenbeilova S , Koshekov K , Koshekov A , Bakirov B , Ivanova M
Published: December 2024

Purpose. Development of an algorithm for assessing the occupational safety management model in civil aviation of the Republic of Kazakhstan using the stakeholder approach, the application of which in the context of social justice, will ensure the flexibility of the model, attract investment in improving working conditions and obtain the expected effect of tripartism.

Methodology. This study was conducted using trends and multivariate analyses. The methods of content and correlation-regression analysis were used to construct a mathematical model of the closeness of the relationship between the injury rate and material costs of industry enterprises for the payment of compensation and provision of guarantees to civil aviation personnel for work in harmful and hazardous working conditions. The adequacy of the model was confirmed by using the determination coefficient. The results were validated using Fisher’s statistical tests. The methods of situational forecasting and modeling were used to determine possible scenarios for the development of the studied system of factors and the performance indicator with a forecast horizon for 2030. Decoupling analysis was used to assess the balance of interests of priority stakeholder groups and to construct an algorithm for assessing the labor safety management model in civil aviation.

Findings. The mechanisms of providing guarantees, insurance, and special social payments to aviation personnel engaged in work under harmful and hazardous working conditions are considered. It has been proven that the national and industry models of labor safety management are not sufficiently effective. The need to revise the approach to the formation of the labor safety management model in civil aviation in the context of active development of social partnership is substantiated.

Originality. For the first time, a substantiated approach to assessing the effectiveness of the management of the labor safety system in civil aviation in Kazakhstan has been proposed, taking into account modern guarantees for employees of the relevant enterprises.

Practical value. The practical application of the proposed algorithm for assessing the occupational safety management model in civil aviation in Kazakhstan will provide an opportunity to determine the effect of tripartism and, accordingly, make the right decisions on occupational safety management.
Checklist of Ascomycetous Fungi of Bangladesh
Authors: Shamsi Shamim
Published: December 2024

Thirty species of Ascomycetous fungi under 21 genera belonging to 12 Families in Bangladesh from 1952 till date are enlisted. The alphabetical checklist of the genera is provided herewith. Further updates will be added in the subsequent versions of the publication.
Bioresearch Commu. 11(1): 1627-1632, 2025 (January)
Proteomic Insights Into The Health Impacts of Cigarette Smoking: Analyzing Nicotine, Pahs, Aromatic Amines, And Aldehydes
Authors: Miah Md Liton , Hossain Md Fuad , Uddin Md Ekhlas , Rahman Md Habibur , Barua Hridoy , Osman Abdirizak Abdirahman , Khan Md Abdul Aziz , Sheikh Md Ramjan
Published: December 2024

Cigarette smoking is a highly detrimental and dangerous habit that can lead to cancer. It contains numerous harmful compounds such as nicotine, polycyclic aromatic hydrocarbons (PAHs), aromatic amines, aldehydes, and various other compounds that are produced during smoking and enter the body. When these toxic substances enter the body, they can harm various systems, including the respiratory, cardiovascular, neurological, renal-urinary, reproductive, and ophthalmic systems. This study aims to identify the proteins that interact with nicotine, polycyclic aromatic hydrocarbons (PAHs), aromatic amines, and aldehydes and to predict their potential impacts on the human body. We collected data for this investigation from the STITCH, STRING, UniProtKB, and NCBI databases. Next, we inputted the fasta sequences of identified proteins into OmicsBox to perform BLAST, GO Mapping, and functional annotation analysis. This study collected 330 sequences, consisting of 44 sequences for nicotine, 88 sequences for PAHs, 88 sequences for aromatic amine, and 100 sequences for aldehydes; finally, 205 sequences were obtained after the BLAST search. The functional annotation study revealed that these compounds significantly affect human health, especially biological processes, cellular components, and molecular functions. Our study also found that these compounds have numerous effects on signaling pathways, heart health, brain, reproductive system, liver functions, kidney functions, RNA and DNA binding, molecular apoptosis, carbohydrate and protein metabolism, mitochondrion, nucleoplasm, cytosol, and various cellular components.  We have identified multiple genes stimulated by nicotine, PAHs, aromatic amines, and aldehydes, including BDKRB2, GPRC1C, MGLUR3, NNMT, ALDH1B1, ALDH7, DERA, CRABP2, ADH1A, ODC1, TLR6, JMJD1, and so on. Most of the genes are responsible for lung cancer, cardiovascular diseases, and alcohol-related cancer. The act of smoking cigarettes can have detrimental effects on individuals close to the smokers, even if they do not engage in smoking due to the transmission of harmful vapor via the air. Our study demonstrated that cigarette smoking is a highly prevalent and preventable cause of cancer, heart disease, and reproductive diseases, making it imperative for individuals to be knowledgeable and resolute in their efforts to stop it.
Bioresearch Commu. 11(1): 1651-1678, 2025 (January)
Prevalence And Risk Factors of Malnutrition Among Women of Reproductive Age In Bangladesh: A Secondary Data Analysis of Bdhs 2022
Authors: Moushumi Naznin Shultana , Hassan Rafid , Hossain Md Shahadoth , Bhuiyan Konok Ahadul Hassan , Amin Md Ruhul
Published: December 2024

Background/Objective: Women of reproductive age (WRA) in developing countries experience a double burden of malnutrition, which adversely impacts their health and the well-being of future generations. Addressing this issue requires updated data to guide effective interventions. Therefore, this study aimed to assess the prevalence and factors associated with malnutrition among WRA in Bangladesh using recent national data.
Methodology: This study analyzed data from the Bangladesh Demographic and Health Survey (BDHS)-2022, which included a nationally representative sample of 8,593 WRA between 15 and 49 years. The outcome variables were malnutrition: underweight (BMI< 18.5 kg/m2), overweight (BMI 23 to<27.5 kg/m2), and obesity (BMI ≥27.5 kg/m2) stratified according to rural-urban residence. Multiple logistic regression was employed to identify factors associated with malnutrition.
Results:  Overall, 55.5% of WRA were overweight or obese, with a significantly higher prevalence in urban areas (63.7%) compared to rural areas (52.3%). Conversely, approximately 10% of WRA were underweight, with rural areas showing a higher prevalence (11.2%) than urban areas (6.7%). Factors associated with increased odds of overweight or obesity in both urban and rural settings included older age, higher educational attainment, having more children, and residing in wealthier households. Conversely, younger age, breastfeeding mothers, lower education, and wealth levels were associated with higher odds of being underweight in both areas.
Conclusion: The study clearly highlights that undernutrition and overnutrition are prevalent in Bangladesh. To address the dual burden of malnutrition among WRA in Bangladesh, targeted interventions, including nutrition education, a nutritional support program, and a healthy food and nutrition environment, are required to improve nutritional status and health outcomes.
Bioresearch Commu. 11(1): 1711-1727, 2025 (January)
A Study on Design of Micro-Hydropower Plant for Run-off Water Sources in Bangladesh
Authors: Rakibuzzaman Md , Islam Aminul , Kauser Ahmad Abdullah , Iqbal AKM Parvez , Zhou Ling
Published: December 2024

Hydropower has been one of the most used energy sources in the world since historic times. Electricity production from hydropower has been there for decades, particularly in isolated regions. Studies have shown that 232 rivers in Bangladesh can be used for micro-hydropower generation and energy security for isolated communities with a reasonable flow rate. The run-off water from these rivers can be used as a clean energy source for running micro-hydro power plants. The main objective of this study was to investigate and justify the potentiality of micro-hydropower in Bangladesh and design a cross-flow turbine to harness power from these rivers. This study considered several design considerations, and a theoretical analysis was performed to create a cross-flow turbine. Then, a turbine was developed, and numerical analysis was conducted using ANSYS-CFX software. Results show that the turbine can achieve a peak efficiency and shaft power of 84.60% and 4.68 kW, respectively. Results indicated that a site with 100-150 liter/s of flow rate and a head of 5-6 meters could easily produce around 3-5 kW of power supply, considering all kinds of losses. The current study is expected to provide helpful information for improving hydropower-based electricity generation in Bangladesh.
IUBAT Review—A Multidisciplinary Academic Journal, 7(2): 30-43
Effect of Different Organic and Inorganic Fertilizers on the Growth and Yield of Okra
Authors: Karim Mohammad Rezaul , M A Sattar  , Rouf Abdur , Hossain Sazzad , Hoque Md Mahfuzul
Published: December 2024

Okra production is thought to be increased by applying inorganic fertilizers, however, continuous application of inorganic fertilizers might cause nutritional imbalance and soil acidity, considering these, a sustainable approaches of okra production would involve managing fertilizers more efficiently using both organic and inorganic fertilizers. With this objective an experiment was evaluated to understand the effectiveness of different types of organic and inorganic fertilizers in promoting the growth and development of Okra plants. The experiment comprised of three replications, six treatments, and one control (untreated). The treatments were: T0=Control, T1=recommended Inorganic fertilizers, T2=Poultry manure, T3=Tricho-compost, T4=Vermicompost, T5=Cowdung and T6=Cowdung + recommended Inorganic fertilizer. Among the effects of different treatment combinations, Poultry manure (T2) showed the highest total fruit yield (14.6 tha-1), plant height (99.2cm), individual fruit weight (15.39 g), and fruit length (11.68 cm) and diameter(1.82cm). While, minimum yield (7.65 tha-1), plant height (80.93cm), individual fruit weight (10.67gm), and fruit length (8.47cm) were recorded in T0. However, compared with other treatment combinations, poultry manure treatment performed better followed by vermicompost. Therefore, it can be concluded that poultry manure performed better for the growth and yield performance of okra.
IUBAT Review—A Multidisciplinary Academic Journal, 7(2): 85-99
The Strategic Implication of Artificial Intelligence on Freelancing in Bangladesh: A Literature Review
Authors: Hossain Kamal , Ahmed Kazi Md Fahim , Fariha Sabrina Hossain
Published: December 2024

This study critically analyzes the strategic impact of Artificial Intelligence on freelancing in Bangladesh. Using a systematic literature review, data was gathered from scientific articles available on platforms such as Google Scholar, SSRN, Wiley database, as well as reports from PricewaterhouseCoopers International Limited (PwC). The findings highlight strategic implications using a Strengths, Weaknesses, Opportunities, and Threats (SWOT) framework. AI presents a potential threat to freelancers, as some job roles can now be replaced by AI technology. The authors also highlight that the current lack of AI-related skills is a weakness but could also be seen as an opportunity for upskilling. This underscores the importance of enhancing skills to manage and optimize AI systems effectively. Additionally, AI has created opportunities in expanding AI-related job sectors in Bangladesh, supported by global AI trends, increasing government recognition of freelancing, new job creation, and improved productivity. Among these factors, AI acceptance, government recognition, and productivity enhancements can be considered strengths. The practical implications suggest that freelancers and policymakers alike can leverage these strategic insights to enhance the Bangladeshi freelancing sector. This study's further emphasize potentials for AI skills development, aiding the growth of freelancing careers. While existing studies tend to focus on AI's benefits and risks, few explore the strategic implications within the Bangladeshi freelancing context. Academics, policymakers, freelancers, and other stakeholders invested in advancing digital Bangladesh should engage in further research on developmental pathways for upskilling and supporting freelancing as a robust sector.
IUBAT Review—A Multidisciplinary Academic Journal, 7(2): 100-113
Seed Quality of Corchorus capsularis in Bangladesh
Authors: Hossain Ismail , Satu Sanzida Rahman , Hasan M Muniruzzaman , Haque Saleh Mohammad Ashraful
Published: December 2024

The experiments were carried out at Plant Pathology Department, Bangladesh Jute Research Institute (BJRI), Dhaka, Bangladesh. Fifteen Seed samples of 10 varieties of Corchorus capsularis collected from seven research stations (Kishorganj, Comilla, Jessore, Potuakhali, Manikganj, Dinajpur and Rangpur) of BJRI for evaluating the quality of seeds, where1000-seed weight/sample ranged from 3.05 to 3.67g, the lowest and highest weights were recorded in CVL–1 of Comilla and in Breeder Seed of CVL-1of Manikganj. Highest pure seed (96.40%) recorded in CVL – 1 of Jessore and lowest (89.41%) in Breeder seed CVL – 1 of Manikganj. The Germination of collected seeds varied from 56 to 88%, where the highest and lowest counts were made in CVL -1 of Rangpur and CVL – 1 of Jessore. The highest (21%) seed yielded fungi per sample of Breeder seed CVL -1 of Manikganj and lowest (6%) in Deshi pat -1 of Potuakhali. The highest ratio (7.3:1) between % seed germination and % seed germination failure found in CVL -1 of Rangpur and lowest ratio (1.2:1) in CVL - 1 of Jessore. Seed borne fungi viz. Macrophomina phaseolina, Botryodiplodia theobromae, Colletotrichum corchori, Aspergillus niger, Aspergillus flavus, and  Penicillium Spp. were determined.
IUBAT Review—A Multidisciplinary Academic Journal, 7(2): 152-162
Impacts of Coal Mining on Farmers’ Well-Being in Barapukuria, Bangladesh
Authors: Reza Md Salim , Jahan Hasneen , Islam Santa , Sarkar Md Abdur Rouf , Sayadat Nazmus , Shahriar S M , Haider Samiul
Published: December 2024

The Barapukuria coal mining area in Dinajpur district of Bangladesh is vital for energy generation but raises significant concerns about its effects on the livelihoods and well-being of the local farmers. The study examined the socioeconomic impact of coal mine on farmers’ well-being. We collected primary data using a multistage random sampling technique through direct interviews during the paddy harvesting period from January to March 2020. Considering the scope of the study, farm-level cross-section data of a total of 100 rice-growing farmers from Parbatipur Upazila of Dinajpur district was collected for the present study. Descriptive statistics were used to depict the socioeconomic status of the farmers and the well-being of the farmers in the permitted coal mining areas was assessed using multiple linear regression analysis, taking social, economic, and environmental factors into account. The survey revealed that the majority of the respondents were male (96%) and were within the age range of 36-50 years, accounting for 52% of the total. About 52% of the farmers had a primary level education, whereas 37% of the farmers had agricultural experience ranging from 11 to 20 years. The study also found that environmental and economic factors of farmers’ well-being were affected significantly by the presence of coal mines. However, the effects of coal mines on social elements were determined to be insignificant. Considering the identified problems, it was recommended that farmers in these areas should be treated in a better way so that they do not have to change their profession. A variety of policies ought to be made accessible for the benefit of the farmers in the study area.
J Bangladesh Agril Univ 22(4): 497–505, 2024
Present Status of Fish Diversity of the Kaptai Lake, Bangladesh
Authors: Arafeen Mohammad Shamsil , Siam M A Habib , Tasnim Jarin , Owaresat J K , Asek Abdullah Al , Newaj AHM Shihar , Kibria Md Manzoorul , Haidar Md Istiaque
Published: December 2024

Kaptai Lake (KL) is the biggest manmade lake in Bangladesh and plays a significant role for local fisheries by creating an excellent environment for various indigenous species. This study pursues to enhance the understanding on fish diversity in Kaptai Lake by attempting to explore the present status of fish populations within the reservoir taking into specific focus on evaluation of conservation management priorities and additional conservation needs. The study was conducted during January–December 2023 at five different sites of the Rangamati district, namely Banarupa Bazar, BFDC Ghat (Rangamati), BFDC Ghat (Kaptai), Reserve Bazar and Tabalchari Bazar. We identified 80 fish species representing the 11 orders and 28 families where Cypriniformes had the highest percentage (38.75%), and ranged from 1.25% to 22.50% for the other orders. The diversity indices, Shannon-Wiener (Hʹ), Pielou’s evenness index (Jʹ) and species richness (SR) were found to be low and uneven in KL based on different seasons. The maximum fish catch was recorded in September (1,855.55 metric tons), and the minimum fish catch ever caught by April (112.24 metric tons). The diversity of Kaptai Lake fish stock is alarmingly threatened due to sustainable human and natural adversities. These results contribute valuable data for conservation purposes and management of Kaptai Lake for biodiversity protection in the years to come.
J Bangladesh Agril Univ 22(4): 506–516, 2024
Altruism and Teachers’ Performance in Private Secondary School in Iganga District Uganda
Authors: Muwaga Musa , Nashori Fuad
Published: December 2024

The objective of this study was to analyze the relationship between altruism and teachers’ performance in private secondary schools in Iganga District, Uganda. A cross-sectional survey design coupled with a mixed-methods approach was adopted. The population and sample were selected from four schools. The total population of the study comprised 88 participants, including four (4) head teachers and 84 teachers with administrative responsibilities. A total sample of 88 respondents was involved, selected via simple random sampling and census inquiry, respectively. Data collection involved interviews with head teachers and a questionnaire completed by teachers. Quality control for the questionnaire was ensured through the computation of a content validity index (0.84), a reliability index using Cronbach's alpha (0.86), and pilot interviews with colleagues to validate the interview guide. Descriptive data analysis was conducted using means and standard deviations, while inferential analysis employed the Pearson product-moment correlation coefficient. Qualitative data were analyzed through content analysis. The key finding, in line with the study objective, indicated a positive, significant, and strong relationship between altruism and teachers’ performance, as evidenced by the Pearson product-moment correlation analysis. This research implies that regulations and school principals should encourage teachers to engage in tasks that demonstrate concern for others.
Pembiayaan Rancang Bangun Smart Greenhouse Hidroponik NFT Untuk Budidaya Sayuran
Authors: Ritonga Utan Sahiro , Ogari Putri Ayu
Published: December 2024

Konsumsi sayuran hidroponik mencerminkan perubahan pada cara pandang konsumen terhadap pangan dan pertanian saat ini. Sayuran hidroponik kini tersedia di supermarket, toko online, pasar tradisional dan pedagang sayuran eceran yang berkeliling. Kemudahan dalam memperoleh dan kesadaran manfaat kesehatan menjadikan sayuran hidroponik sebagai pilihan utama dan mendorong peningkatan budidaya sayuran secara hidroponik. Smart greenhouse sistem hidroponik pada budidaya sayuran hidroponik semakin penting dalam menghadapi berbagai isu lingkungan di sektor pertanian. Sistem hidroponik dapat menghemat lebih banyak air dibandingkan dengan sistem pertanian yang konvensional. Selain dapat mengurangi masalah erosi dan degradasi tanah sistem hidroponik juga efisien dalam penggunaan nutrisi dan pengurangan limbah yang mencemari lingkungan. Produksi sayuran dengan sistem hidroponik lebih memungkinkan untuk memenuhi kebutuhan sayuran berkelanjutan sepanjang waktu tanpa bergantung pada musim. Namun pengembangan smart greenhouse hidroponik Nutrient Film Technique (NFT) memiliki tantangan karena tingginya biaya awal dalam pembangunan dan pengadaan teknologi canggih. Melalui pendekatan analisis kuantitatif diketahui kebutuhan biaya rancang bangun smart greenhouse NFT seluas 450 m2 dengan 2.000 lubang tanam adalah sebesar Rp. 988.954.500-. Lamanya pengembalian biaya pembangunan smart greenhouse hidroponik NFT adalah 2 tahun 1 bulan tergolong ideal dibanding dengan umur bisnis sayuran hidroponik. Strategi skema pembiayaan melalui kemitraan antara sektor publik dan swasta, hibah maupun subsidi, serta pinjaman koperasi dan berbagai sumber keuangan lainnya akan sangat membantu dalam mendorong percepatan adopsi teknologi bagi petani skala usaha kecil.
TRADISI NYUMPET DI DESA SEKURO KECAMATAN MLONGGO KABUPATEN JEPARA
Authors: . Meyvaika Wahyuni Diah Fauziyah , . Nurul Azizah , . Siti Saidatun Nikmah , Falaq Yusuf
Published: December 2024

Karya tulis ini bertujuan untuk mengenalkan tradisi yang ada di jepara khusunya adalah tradisi nyumpet yang berada di Desa Sekuro Kecamatan Mlonggo Kabupaten Jepara, karya tulis ini bertujuan jugs agar kita sebagai generasi muda dapat melestarikan tradisi nyumpet karena tradisi nyumpet merupakan akulturasi budaya. Tradisi nyumpet ini biasa dilestarikan masyarakat setempat agar diberikan keselamatan sebelum resepsi pernikahan atau sunatan. Tradisi nyumpet sendiri dulunya merupakan suatu ritual yang dilestarikan masyarakat agar diberi perlindungan kepada roh roh nenek moyang, namun setelah adanya islam tradisi nyumpet di islamisasikan sehingga tradisi tersebut tetap ada namun prosesi didalamnya tetap ada nilai nilai islamisasinya. Metode yang digunakan dalam penelitian ini adalah metode kualitatif deskriptif. Instrument pengambilan data menggunakan sumber kepustakaan, dokumentasi, dan pengamatan tak langsung.Kata kunci: Tradisi, nyumpet, desa sekuro
Pengaruh Intensitas Hujan dan Kemiringan Lereng terhadap Erosi Pada Lahan yang Ditanami Rumput Jepang
Authors: Oktarini Yoessi , Rizalihadi Maimun , Agustian Bayu
Published: December 2024

Erosi tanah adalah proses atau peristiwa hilangnya lapisan permukaan tanah yang disebabkan oleh pergerakan air maupun angin. Proses erosi ini dapat mengakibatkan penurunan produktivitas tanah, daya dukung tanah, dan kualitas lingkungan hidup. Intensitas hujan dan kemiringan lereng merupakan salah satu faktor penting yang berpengaruh terhadap besar erosi. Penelitian ini bertujuan untuk melihat pengaruh intensitas hujan dan kemiringan lereng terhadap erosi pada lahan yang ditanami oleh rumput jepang (Zoysia japonica) sehingga diperoleh gambaran dari perlakuan mana yang paling berpengaruh terhadap erosi. Variasi intensitas hujan yang diuji pada percobaan ini sebesar (37,5; 50; 62,5) mm/5 menit dan kemiringan lereng sebesar (0; 10; 20)°. Hasil penelitian ini menunjukkan bahwa kemiringan lereng paling berperan dalam memperbesar erosi tanah dibandingkan intensitas hujan. Dengan adanya pengaruh kemiringan lereng, besar erosi pengukuran bertambah sebesar 2-3 kali lipat dari setiap tingkatan intensitas. Sedangkan untuk pengaruh intensitas, besar erosi pengukuran bertambah sebesar 1-2 kali lipat dari setiap tingkatan kemiringan. Analisis regresi linear antara erosi, intensitas hujan, dan kemiringan lereng menghasilkan model erosi A = -54,89 + 1,16I + 2,11S, dengan koefisien determinasi sebesar 0,780, menunjukkan bahwa model erosi tersebut sesuai dengan data dengan baik.
Estimasi Biaya Produksi Alat Gali Muat dan Alat Angkut pada Penambangan Nikel di Blok B1 Pit 5 PT. Anugrah Harisma Barakah Kecamatan Kabaena Selatan Kabupaten Bombana Provinsi Sulawesi Tenggara
Authors: Syaharuddin Syaharuddin , Firdaus Firdaus , Anshari Erwin
Published: December 2024

Perseroan Terbatas Anugrah Harisma Barakah merupakan salah satu perusahaan yang melakukan penambangan bijih nikel yang berlokasi di Kecamatan Kabaena Selatan, Kabupaten Bombana, Provinsi Sulawesi Tenggara yang sementara ini berencana membuka Blok baru yaitu pada Blok B1 Pit 5. Penelitian ini bertujuan untuk menentukan jumlah serta biaya produksi alat gali muat dan alat angkut pada proses pengupasan overburden dan penambangan biji nikel dengan tonase overburden 130.421 ton dan tonase ore yaitu 82.316 ton. Target produksi pengupasan overburden yaitu 75.000 ton dan target produksi penambangan nikel yaitu 50.000 ton. Alat gali muat yang digunakan pada kegiatan pengupasan overburden dan penambangan biji nikel yaitu excavator Komatsu PC 300-8 sedangkan alat angkut yang digunakan yaitu Dump truck Hino 500 FM260JD. Jumlah alat gali muat yang dibutuhkan pada kegiatan pengupasan overburden yaitu 1 unit alat gali muat dan 4 unit alat angkut. Kemudian untuk penambangan biji nikel menggunakan 1 unit alat gali muat dan 3 unit alat angkut. Kemudian dibutuhkan 1 unit alat gali muat dan 4 unit alat angkut kegiatan pemindahan ore dari ETO  ke EFO. Total biaya yang butuhkan pada kegiatan pengupasan overburden yaitu Rp 2.257.488.280 dan biaya penambangan nikel yaitu Rp 6.803.422.885. Total biaya produksi mulai dari pengupasan overburden sampai penambangan biji nikel pada Blok B1 Pit 5 PT. Anugrah Harisma Barakah yaitu Rp 9.060.911.166.
Studi Perbandingan Pengukuran Lereng Di Kecamatan Ternate Barat, Kota Ternate, Provinsi Maluku Utara
Authors: Abd. Gafur Sri Utari , Halil Amrih , Sahetapy George Belly , Delila Alifianty , Bundang Syarifullah
Published: December 2024

Lereng adalah suatu permukaan yang menghubungkan permukaan tanah yang lebih tinggi dengan permukaan tanah yang lebih rendah (Korah et al, 2014) [2]. Pengukuran lereng dilakukan untuk mengetahui klasifikasi lereng [7], kestabilan lereng [5], hingga potensi kelongsoran [4,9]. Menurut Saputra et al. (2015) pengukuran kemiringan lereng selalu menemukan kendala saat pengambilan data di lapangan, sehingga diperoleh ketidaksesuaian antara kondisi lapangan dan hasil pengolahan data [6]. Perbandingan pengukuran lereng dilakukan menggunakan metode konvensional dengan pita ukur dan metode yang lebih modern menggunakan Global Positioning System (GPS).  Dari hasil penelitian, pengukuran lereng menggunakan pita ukur dan GPS, dapat disimpulkan bahwa berdasarkan klasifikasi lereng menurut van Zuidam (1979), lereng di Kelurahan Takome dan Togafo tergolong lereng terjal. Perbedaan hasil pengukuran menggunakan GPS disebabkan oleh cuaca, jumlah satelit ketika pembacaan data, dan faktor eror lainnya yang dipengaruhi oleh jarak titik pengukuran yang terlalu dekat. Kata kunci: Lereng, Global Positioning System (GPS), Metode Konvensional
Pengaruh Nilai Fungsional, Nilai Emosional, Dan Nilai Sosial Terhadap Niat Beli Barang Virtual Dalam Game Mobile Legends (Studi Kasus Pada Pemain Game Online Mobile Legends Di Jawa Barat
Authors: Tamara Agra Fadhilla , Hermawan Adam , Purwaamijaya Btari Mariska
Published: December 2024

Penelitian ini bertujuan untuk menganalisis pengaruh nilai fungsional, emosional, dan sosial terhadap niat beli barang virtual dalam game Mobile Legends. Game ini populer di kalangan pengguna smartphone dengan sistem mikrotransaksi yang memungkinkan pembelian barang virtual seperti skin dan item eksklusif. Topik ini menarik karena meskipun mikrotransaksi terus meningkat, terdapat keluhan pemain terkait kualitas produk yang menimbulkan penurunan niat beli. Penelitian ini dilatarbelakangi oleh fenomena penurunan pendapatan Mobile Legends sejak 2022, dengan fokus utama pada pengaruh nilai-nilai barang virtual terhadap keputusan pembelian. Data dikumpulkan dari 160 pemain Mobile Legends di Jawa Barat menggunakan kuesioner tertutup berbasis skala Likert dan dianalisis dengan regresi linier berganda. Hasil penelitian menunjukkan bahwa nilai fungsional dan emosional memiliki pengaruh signifikan terhadap niat beli barang virtual, sementara nilai sosial tidak memiliki pengaruh yang signifikan. Kesimpulannya, nilai fungsional dan emosional menjadi faktor penting yang perlu diperhatikan oleh pengembang game untuk meningkatkan niat beli. Implikasi praktisnya adalah pengembang disarankan untuk mengoptimalkan fitur barang virtual yang memberikan manfaat nyata serta menciptakan pengalaman emosional yang kuat bagi pemain melalui desain visual dan cerita yang menarik.
Pengaruh Efikasi Diri dan Displin Kerja Terhadap Semangat Kerja Driver Ojek Online di Jalan DI Panjaitan
Authors: Dina Nur , Irawan Pristanto Ria , Mariana Sinta , Rustomo Rustomo
Published: December 2024

Penelitian ini dikontuks sebagai penelitian kuantitatif deskriptif yang membahas efikasi diri dan disiplin kerja terhadap semangat kerja para driver ojek online di Jalan DI Panjaitan Jakarta Timur. Yang melatarbelakangi penelitian merupakan permasalahan sulit dan daya saing mencari pekerjaan di Ibu Kota Jakarta setelah lulus dari bangku sekolah. Label pengannguran yang harus melekat setelah lulus menajdi bumerang. Tujuan penelitian adalah menganalisis efikasi diri dan disiplin kerja driver terhadap semangat kerja. Ojek online salah satu solusi pertama untuk memulai kerja dengan berbagai kemudahan dengan banyaknya pelanggan pengguna moda transpotasi umum murah dan mudah. Metode penelitian ini adalah kuantitatif deskriptif pengambilan data menggunakan kuesioner pada skala likert, dengan teknik accidental sampling yang ditentukan waktu pengambilan data, pada seluruh driver ojek online di jalan DI Panjaitan Jakarta Timur. Olah data menggunakan SPSS Versi 25 untuk menganalisis uji intrumen, uji asumsi klasik dan regresi berganda. Implikasi yang didapat adalah sebarapa pengaruh dan hubungan antar variabel. Hasil penelitian menunjukan bahwa seluruh data valid dan reliabel serta normal pada data yang terkumpul. Hubungan dan pengaruh dua variabel independent terhadap variabel dependent positif dan signifikasi. Disimpulkan bahwa hubungan dan kotribusi efiaksi diri dan disiplin kerja teradap semangat kerja driver ojek online positif kuat. Harapan penelitian selanjutnya dapat memberikan dampak yang signifikan terhadap para driver secara umum para driver ojek online sebagai sarana kerja tidak berlabel pengangguran setelah lulus sekolah.
Elementary process analysis of charge transfer processes of lithium-ion batteries through the distribution of relaxation times method
Authors: Tomita Sohei , Kawaguchi Daiki , Hirayama Satoshi , Inui Yoshitaka
Published: December 2024

Electrochemical impedance spectra were analysed for laminated and commercially available cylindrical batteries with varying electrode materials and degrees of cycle degradation. The distribution of relaxation times method was used to isolate the elementary processes, enabling an investigation into how cathode materials and cycle degradation impact battery impedance. It was observed that batteries, irrespective of their cathode material, exhibited four impedance components within the frequency range of the charge transfer process, with distinctions in the charge transfer process of the cathode manifesting at lower frequencies. The consistent presence of four primary impedance components was also noted in batteries subjected to varying degradation cycles. The results indicate that the number of significant elementary processes within the battery remains unchanged across different cathode materials and degrees of cycle degradation. The observed increase in the electrochemical impedance owing to degradation was ascribed to the charge transfer process originating from the cathode material.
TREINAMENTO COMERCIAL PARA MELHORIA DE RESULTADOS EM UMA EMPRESA DE SOLUÇÕES ENERGÉTICAS
Authors: Yano Toraiwa Ronaldo , Lima Gustavo Barbieri
Published: December 2024

Treinamento e desenvolvimento da equipe de vendas são considerados de suma importância para melhorar os resultados das empresas, em termos de vendas e faturamento.O objetivo central da presente pesquisa é investigar os resultados obtidos sobre eficiência e eficácia, em termos de prospecção de clientes e faturamento, de um treinamento na forma presencial e remota para a equipe de vendas da empresa ALPHA. A presente pesquisa caracteriza-se como qualitativa, de natureza exploratória. Para tal, utilizou-se o método de estudo de caso único para se analisar a empresa ALPHA, do setor de soluções energéticas, sediada no sul do país com atuação em todo o território nacional. O principal resultado mostrou que: neste estudo, a capacitação se mostrou eficiente, onde 62,5% dos representantes avaliados tiveram crescimento nas vendas. E ao contrário do resultado geral que está 15% abaixo comparado com o mesmo período do ano de 2022, esta equipe avaliada teve um crescimento de 9,94% na soma dos faturamentos dos representantes de 1 a 17.
FEIRAS COLABORATIVAS: estudo de caso das feiras no interior de São Paulo
Authors: Farah Solange Pereira dos Santos , Mendes de Souza Caroline , Oliveira Leão Almeida Dayane , Da Silva Moreira Denis da Silva Moreira , Fraga FARAH ALESSANDRO
Published: December 2024

O trabalho abordou o estudo sobre as feiras colaborativas e a economia criativa, seus conceitos e história. Foi avaliado o impacto econômico e social das feiras na comunidade e na vida dos expositores. Realizou-se um estudo de caso com as feiras privadas das cidades de Ourinhos – SP (Galpão Colaborativo) e São José dos Campos – SP (Mercadinho Artesanal) e da feira pública da cidade de São José dos Campos – SP (Feira Noturna), analisando os dados de maneira quantitativa e qualitativa. Verificou-se as semelhanças e diferenças entre as feiras públicas e privadas e os impactos econômicos que a feira representa na vida dos expositores e
na sociedade, além do impacto social realizado através de ações com entidades beneficentes. Concluiu-se que as feiras privadas acabam tendo uma gestão centralizada no papel da curadoria enquanto a feira pública tem uma gestão descentralizada, sendo a prefeitura responsável pela regulamentação e segurança, e a organização a cargo dos expositores. Apesar das suas diferenças, ambas representam um impacto significativo para a sociedade.
ESTUDO DO DESENVOLVIMENTO DE UM DISPOSITIVO DE EXTRUSÃO DE FILAMENTO PARA IMPRESSÃO 3D A PARTIR DE PET RECICLÁVEIS
Authors: Gheno Simoni Maria , Santos Renan Marques dos , Rosa Thiago Felix , Mello Victor da Silva , Mello Vinícius da Silva
Published: December 2024

O presente estudo tem como objetivo desenvolver o projeto da construção de uma extrusora para filamentos, os quais são utilizados em impressoras 3D e adquiridos através do processo de reciclagem de garrafas PET. Levando em consideração todas as características fundamentais almejadas em filamentos comerciais e colocando como prova a comparação com as propriedades possíveis que podem ser obtidas através do uso da garrafa PET, estuda-se a possibilidade de fazer o uso deste material para manufaturar a produção de filamentos, de maneira particularizada. Os maiores desafios a serem superados são as inúmeras dificuldades na obtenção dos grânulos, a estabilidade na extrusão, as propriedades mecânicas variáveis e o seu armazenamento de maneira eficiente. Em contraponto, equipamentos, novas funções e incontáveis testes serão agregados ao projeto, visando aperfeiçoar sua funcionalidade.
Budikdamber Training to Enhace Women’s Quality of Life through ABCD in Tegalsari Cirebon
Authors: Vidiati Cory , Kharimah Kharimah , Lela Citra , Pratama Yahya Huda , Rosalin Nicha
Published: December 2024

This service focuses on empowering housewives in Tegalsari Village, Plered District, Cirebon Regency, through the 2024 Community Service Lecture program of Universitas Islam Bunga Bangsa Cirebon (UIBBC). This program optimizes the Asset-Based Community Development (ABCD) approach to increase the economic independence of housewives through catfish cultivation and plants in buckets (budikdamber). The purpose of this service is to identify the potential and assets of housewives in improving their quality of life and creating sustainable business opportunities. The methodology used includes observation, interviews, and direct implementation of the budikdamber program in the field. The results of this service showed that most of the participants managed to maintain the survival of their fish, although there were some technical constraints such as the quality of the cultivation container and the frequency of feeding that affected the harvest. The program succeeded in improving the knowledge and skills of housewives in fish and plant farming, although there is a need for continuous improvement and monitoring to achieve more optimal results.
STUDENT MOTIVATION AND LEARNING OUTCOMES THROUGH ONLINE FLIPPED CLASSROOM BASED ON STUDENT SELF-REGULATION IN COASTAL AREAS
Authors: Muali Chusnul , Aisyah Nur , Faizah Nurul
Published: December 2024

Most learning motivation research focuses on students' performance with various abilities and skills and still needs to integrate constructive learning technology tools. Therefore, this study answers research questions about differences in stu-dent motivation and learning outcomes using the online flipped classroom based on differences in students' self-regulatory levels. Data was obtained from 108 students in coastal area schools, who were divided into two groups. Students' self-regulative abilities are measured using a four-point Likert scale, and learning outcomes are obtained from multiple-choice questions. The data collection in-strument used resulted from the developing of The Motivated Strategies for Learning Questionnaire (MSLQ). The hypothesis was tested using multivariate analysis of variance to find answers to research questions. The results of this study show higher levels of motivation and learning outcomes in the online flipped classroom group. Furthermore, the research results show the influence of student self-regulation on student motivation and learning outcomes.
INNOVATIVE APPROACH IN CURRICULUM DEVELOPMENT; IMPROVING EDUCATION AND TRAINING PROGRAMS THROUGH MULTIDIMENSIONAL STRATEGIES
Authors: Putri Dinda Febrianti , Abdullah Abdullah
Published: December 2024

The rapid advancements in the digital era present educational institutions with increasingly complex challenges in maintaining curriculum relevance to the demands of the modern world. Traditional curricula, which predominantly focus on academic aspects, are increasingly viewed as insufficient in equipping graduates with the competencies required to navigate real-world challenges. Graduates are expected not only to excel academically but also to demonstrate adaptability, problem-solving capabilities, and interpersonal skills. This study investigates the potential of a multidimensional strategy to enhance curriculum design by integrating key elements, such as digital competencies, quality of learning materials, effective technology utilization, and active stakeholder involvement. Utilizing qualitative methods, the research collected data through interviews with students, educators, educational managers, and technology developers to gather insights on best practices and the inherent challenges in curriculum innovation. The research findings indicate that the implementation of multidimensional strategies in curriculum development includes the integration of social and emotional skills, enhancement of learning material quality, utilization of technology in learning, cross-sectoral collaboration, and the development of practical skills.
BARRIERS TO INCLUSIVE PLAY IN EARLY CHILDHOOD EDUCATION; PERSPECTIVES FROM TEACHERS AND PARENTS OF CHILDREN WITH DEVELOPMENTAL DISABILITIES
Authors: Mas'ud Muwafiq Ibrahim
Published: December 2024

This research aims to examine the understand of the transformation of the educational paradigm towards the inclusion of play for children with developmental disabilities, especially dyslexia, dysgraphia, and dyscalculia, in the context of early childhood education. This study uses a qualitative approach to explore how changes in inclusive teaching methodology affect the engagement and development of children with these disabilities. Data was collected through in-depth interviews with educators and parents and direct observation in classroom settings. Research findings show that implementing inclusive teaching methods significantly increases the active participation of children with dyslexia, dysgraphia, and dyscalculia, as well as their social skills. This intervention also positively impacted children's cognitive and emotional development, with essential contributions from family support and an adaptive learning environment. This research provides new insight into the importance of inclusive methodologies in supporting children with developmental disabilities. It emphasizes the need for collaboration between educators, families, and service providers to create more adaptive and supportive learning environments.
IMPLEMENTATION OF INNOVATIVE TEACHING METHODS ON ENHANCING QUALITY TEACHING AND LEARNING IN SECONDARY SCHOOLS IN MOROGORO TANZANIA
Authors: John George
Published: December 2024

The phenomenon of social and technological development has brought significant changes in the world of education, particularly in teaching practices. However, in Tanzania, the adoption of innovative teaching methods in secondary schools is still limited. This study aims to explore teachers' awareness of innovative teaching methods and their application in the context of secondary education in Morogoro, Tanzania. The research approach used is qualitative, aimed at understanding the patterns of innovative method usage and the factors influencing them. The research results show that most teachers have theoretical awareness of innovative teaching methods, such as blended learning and mobile learning, but their implementation is still low due to infrastructure and training limitations. Students acknowledge that these methods enhance engagement and flexibility in learning, although their implementation is not yet uniform across all schools. Thus, it can be concluded that there is an urgency for the professional development of teachers through continuous training and the provision of adequate infrastructure to support the implementation of innovative teaching methods.