bluuebunny/crossref_metadata_2025 huggingface dataset:
Implementasi Aplikasi Laporjalanku untuk Pemetaan dan Pelaporan Jalan Rusak di Wilayah Kota Tarakan
Authors: Wardani Ade , Rosyda Miftahurrahma
Published: March 2024

Tarakan City has road facilities with various degrees of damage, ranging from minor to severe conditions. To address this issue, a WebGIS application is required to provide information about the road conditions. This research aims to develop the "Laporjalanku" application, designed to assist the public in reporting road damage in Tarakan City and mapping information about damaged roads. The application enables the public to easily report complaints via the web or their Android smartphones. Its features include information such as images of damaged roads, the location of damage, and estimated repair times. The development methodology used is the waterfall model, ensuring a systematic and sequential system development process. Black-box testing showed that the system functions well. Meanwhile, the System Usability Scale (SUS) test resulted in a score of 84.5%, categorized as good, and meeting user experience requirements. This application streamlines the road mapping and reporting process, providing accurate information to the Department of Public Works. Additionally, it serves as a vital tool for the government and the public to improve collaboration in maintaining the city's road conditions.
Model Klasifikasi Machine Learning untuk Prediksi Ketepatan Penempatan Karir
Authors: Mahmud Nawawi Hendri , Baitul Hikmah Agung , Mustopa Ali , Wijaya Ganda
Published: March 2024

The complexity of the job market requires individuals and organizations to understand the trends and needs of the world of work. One of the main challenges is the right career placement. That is becoming increasingly popular is the use of Machine Learning  algorithms in the decision-making process. ML classification models such as Random Forest, Decision Tree, Naïve Bayes, KNN, and SVM have demonstrated their potential in uncovering hidden patterns from data, including a person's educational history, work experience and interests. In this research, the application of the ML classification model is aimed at predicting career placement. From the data sample used of 215, this research evaluates the effectiveness of various ML models in the context of career placement. As a result, the Random Forest Model is superior to other proposed models with an accuracy value of 87% and an AUC/ROC value of 0.93 which indicates a very good classification value. Meanwhile, the SVM model with Linear Kernel shows the lowest performance with an accuracy value of 67%. Apart from getting information on the best accuracy and AUC/ROC values, the results of this research found that the 'ssc_presentage' attribute (high school exam percentage) is an important factor in career placement decisions.
Analisis Opini Terhadap Aplikasi Riliv di Twitter Menggunakan Algoritma Naïve Bayes dan Random Forest
Authors: Nurfitriana Diana , Ridwan Taufik , Voutama Apriade
Published: March 2024

In the current era of technological advancement and the internet, people can easily access various information. This technological advancement brings innovation in the mental health field, such as services in the form of apps. This research conducts sentiment analysis using the Naïve Bayes and Random Forest algorithms. The study aims to analyze Twitter users’ opinions regarding the Riliv apps and compare the results of classification using Naïve Bayes and Random Forest. This research methodology uses the AI Project Cycle method. The data used is tweet data from Twitter with the keyword 'aplikasi riliv’. The dataset consisted of 1035 data, which was processed to produce 273 positive, 273 neutral, and 39 negative sentiments data. The Naïve Bayes and Random Forest algorithms were applied to compare the classification results of the two. The most optimal classification results are Naïve Bayes with SMOTE with the division of 90% training data and 10% testing data, which results in an accuracy value of 82.72%, a value of precision is 82.89% and a value of recall is 82.72%. Based on the results of the distribution of sentiment data, most users gave positive reviews and were knowledgeable about the Riliv application, while only a few were disappointed
Penerapan Algoritma K-Means untuk Klasterisasi Produksi Budidaya Perikanan Provinsi Sulawesi Utara
Authors: Sakur Stendy Budi Hartono , Silangen Miske , Tuwohingide Desmin
Published: March 2024

Capture fisheries production is decreasing due to natural resources or weather conditions, so other resources are needed to support fisheries production. One alternative is to increase the production of aquaculture commodities through seawater, freshwater, or brackish water cultivation. Various potentials for developing aquaculture have been developed in various regions, including the North Sulawesi region. Grouping aquaculture commodity production according to container type is very important to maintain and increase aquaculture production. This research aims to cluster aquaculture production in the North Sulawesi area using the K-Means method using Euclidean, Manhattan, and Minkowsky distances. The results of the research obtained three clusters, namely the first cluster, the region with the highest production of pond container types, namely the Sitaro Islands, and for second cluster consisting of 13 regions that have variations in production ranging from low to high for the types of floating net containers and ponds, while third cluster is the region Bitung with moderate production for pond types. It is hoped that this research can help related agencies to create policies to increase the production potential of aquaculture.
Perancangan User Interface dan User Experience Aplikasi Klinik Gigi Menggunakan Metode Design Thinking
Authors: Putri Salsabila Dhea , Pradini Risqy Siwi , Khudori Ahsanun Naseh
Published: March 2024

Klinik Gigi drg. Ema Medika so far still provides services to patients manually and keeps medical records using paper documents. This causes data invalidity and sometimes the confidentiality of patient data cannot be maintained properly. To increase efficiency, this research designed an application Prototype for Klinik Gigi drg. Ema Medika. The Design Thinking method is used as an approach in Prototype development, which consists of the stages of knowing user problems and needs, identifying user problems, determining solution ideas, creating a Prototype, and conducting testing. Through the designed Prototype, users can interact with the user interface and experience the user experience. Testing was carried out using User Acceptance Testing (UAT) and produced a value of 97.37. Thus, it can be concluded that the Prototype design of the Klinik Gigi drg. Ema Medika application can meet user needs very well. The expectation is that the outcomes of this study can play a role in the adoption of information technology solutions that are both effective and efficient within the dental clinic setting, leading to an enhancement in the level of service provided to patients.
EVALUATION OF CHARCOAL PRODUCTION FOR THE SUBSTITUTION COKING COAL FOR THE IRON AND STEEL INDUSTRY
Authors: Koltun P.S. , Klymenko V.V. , Skrypnyk O.V.
Published: March 2024

The presented work focuses on the assessment of charcoal production to replace coal coke in the process of iron and steel production to reduce greenhouse gas emissions from human activity. The main task of the research is to identify and evaluate the possible environmental benefits and economic sustainability of such a replacement. For this, the work used a mathematical model of charcoal production using a factorial approach and parametric research methods. The article presents the results of a technical, economic and environmental assessment of such production, taking into account costs and some assumptions for a probable hypothetical plant with a capacity of 100,000 tons of charcoal per year. The above-mentioned estimates of production according to the base scenario and according to the proposed scenario 1 were compared. The base scenario envisages the production of charcoal and includes the by-production of bio-oil, electricity, thermal energy for drying biomass, and scenario 1 also envisages the production of additional by-products: methanol, acetic acid, tar (are released from the formed pyroligneous acid), as well as a parallel increase in production electrical and thermal energy. The obtained results show that the considered plant cannot be economically viable without the introduction of a carbon tax (incentive), but production according to scenario 1 is economically more attractive. will be economically viable for various scenarios. For the considered technological options for the production of charcoal by a plant with a capacity of 100,000 tons per year, such an important economic criterion as the payback period (PBP) was calculated. It is shown that when scenario 1 is implemented, the PBP is 20 years at $14.5 of CO2-e./t, and at $32.5 of CO2-e./t the PBP is 8 years. Bibl. 47, Fig. 5, Tab. 15.
TECHNOLOGY AND EQUIPMENT FOR OBTAINING OF UNIVERSAL HYDROCARBON FUEL
Authors: Obodovych О.М. , Tselen B.Ya. , Stepanova O.Ye. , Nedbailo A.Ye. , Bulii Yu.V.
Published: March 2024

An analysis of methods and equipment for obtaining hydrocarbon fuel was carried out. The purpose of the work is the development of technology and heat-mass exchange equipment for the production of universal hydrocarbon fuel, suitable for use in all types of thermal power plants. Heat and mass exchange equipment has been developed, with the help of which it is possible to obtain universal hydrocarbon fuel with a maximum size of coal particles no larger than 3 microns. The use of water-coal suspensions as an energy fuel allows to increase the technical, economic and environmental indicators of power plants. Thus, during the transition to coal-hydrogen fuel, it was possible to increase its thermal capacity from 13.2 to 21.1 MW when 70 % of coal was replaced by coal-hydrogen fuel. Currently, there are various methods and equipment for the preparation of hydrocarbon fuel. However, they all have certain drawbacks. The main disadvantages of the methods of obtaining hydro-coal fuels are multi-stage, metal-intensive, high energy costs, carrying out physico-mechanical and expensive chemical demineralization of coal, etc. Also, the disadvantages are the limited frequency of hydraulic shock pulses during processing in one cycle, which is insufficient when preparing highly concentrated suspensions that meet the requirements for liquid composite fuel intended for direct combustion. In order to improve the quality of the resulting suspension due to more effective grinding and increasing the amount of its solid component, heat and mass exchange equipment was developed, which can be used to obtain universal hydrocarbon fuel for burning in boilers, furnaces, various thermal power equipment, internal combustion engines, etc. As heat and mass exchange equipment, rotary pulsation devices operating according to the method of discrete-pulse energy input were used. Bibl. 18, Fig. 4, Tab. 3.
REGIONAL ENERGY EFFICIENCY PROGRAMS. CURRENT STATUS AND DEVELOPMENT PROSPECTS
Authors: Nikitin Ye.Ye. , Yevtukhova T.O. , Novoseltsev O.V. , Komkov I.S.
Published: March 2024

The urgent need to accelerate the pace of energy efficiency improvement has directed the activities of scientists and researchers to find ways to improve existing and develop new methods and tools to solve this problem. Among these tools, national and regional energy efficiency programs play a leading role. In this study, based on the analysis of modern publications devoted to certain aspects of solving this problem, the main provisions of the generalized methodology for developing a regional energy efficiency program are formulated, which allows you to take into account local peculiarities and use the developed document for planning at the national level. The main stages of development of the methodology are determined, an algorithm for preparing the program are developed, and conditions, tools and main directions for developing investment projects are formulated. The key component of the program development and implementation is the regional energy management system, which has a hierarchical structure consisting of local subsystems. A methodology for integrating these subsystems with the regional energy services company is proposed, which allows coordinating the activities of local energy management subsystems and directing them to jointly coordinated interaction with regional energy services companies, gaining additional benefits in terms of increasing business efficiency, saving energy resources and preserving the environment. Bibl. 40, Fig. 1, Tab. 1.
PROCESSING OF OLD SLUDGE DEPOSITS INTO COMPOSITE FUEL
Authors: Sniezkin Yu.F. , Petrova Zh.O. , Chmel V.M. , Novikova Yu.P. , Novikova I.P. , Badekha A.V.
Published: March 2024

An urgent problem in Ukraine is overcrowded sludge sites with outdated sludge deposits. Due to the food problem, the world needs to maximize the release of land areas that have been under technical use and reclaim them for agricultural land. Therefore, the processing of obsolete sludge deposits makes it possible to reuse land for activated sludge or for reclamation for other needs of the country. The paper sets the task of studying obsolete sludge deposits to create a technology for their processing. Due to the high ash content of old silt deposits, it was proposed to combine them with peat and biomass. This will reduce ash content by 1.5–2.0 times. Since the created composite granules and the sludge deposits themselves have a high moisture of 61–68 %, the drying kinetics was studied on a convective experimental stand to reduce it. The research results showed that composite granules have a drying time of 28–39 minutes to a moisture content of 6–7 %, which is 2.3–3.1 times faster than peat. The equilibrium moisture content of composite granules was determined to be 6–7 % and not exceeding the standard moisture content for fuel granules. The heat of combustion of obsolete sludge deposits, which is 11.8 MJ/kg, and the resulting composite granules based on them, was determined, which is quite high and, depending on the composition, is in the range of 13.4–15.5 MJ/kg. During the study of the combustion of a separate fraction of aged sludge deposits, it was found that the combustion process occurs in the upward convective flow of the oxidant behind the double boundary layer. It was determined that the combustion rate is independent of its size and is the same, but the mass affects the time of ignition. Further studies on the combustion of composite granules showed that the combustion rate of the granules is significantly lower than the combustion rate of the original biomass, but the combustion rate of a separate fraction of silt deposits prevails. Bibl. 32, Fig. 8, Tab. 1.
FORMATION AND EMISSION OF DIOXINS IN THE ENERGY SECTOR OF UKRAINE
Authors: Chetverykov V.V. , Bondar O.I. , Ryzhenko N.O. , Koval S.M. , Rossokha А.V.
Published: March 2024

The development of national plans to reduce the emissions of Persistent Organic Pollutants (POPs) is one of the key requirements of the Stockholm Convention on POPs. Preliminary expert assessments show that the energy sector of Ukraine is the second largest producer of POPs after metallurgy. The largest sources of POPs emissions with relatively small volumes of combustion are plants that burn municipal solid waste and biomass. Optimizing the composition of the input fuel/raw material should provide a significant potential for reducing POPs emissions in such installations. Extraction of components that can become precursors or catalysts for the synthesis of dioxins during municipal solid waste incineration can be carried out through large-scale application of separate collection and preliminary mechanical and biological processing of waste. For biomass with high chlorine content and ash content (straw), it is advisable to use combined combustion with fossil fuels or waste containing dioxin synthesis inhibitors. When using biomass as an auxiliary fuel in industrial boilers and furnaces, it is advisable to equip gas cleaning systems with devices for sorption and catalytic removal of dioxins. Bibl. 28, Tab. 3.
HYDRODYNAMIC MEANS OF HEAT EXCHANGE INTENSIFICATION IN CONSTANT CROSS-SECTION ROUND CHANNELS
Authors: Mikulionok I.O.
Published: March 2024

The purpose of research is the analysis of innovative designs of hydrodynamic means of intensification of heat exchange in channels of constant cross-section of technological equipment and pipelines, intended for use in the thermal power, chemical, food and related industries. The study of the state of the issue and trends in the development of structural and technological design of hydrodynamic elements of pipes and tubular elements for the intensification of heat exchange are based on a critical analysis of scientific and technical sources of information and, first of all, patent information of the leading countries of the world. The classification of these means for intensification of heat exchange in equipment and pipelines of thermal energy, chemical, food and related industries is proposed. The most interesting designs of these elements proposed by scientists, designers and inventors of the leading countries of the world are considered. A critical assessment of most of the above constructions is provided, their advantages and disadvantages are discussed. Designs of means of intensification of heat exchange in channels are analyzed depending on the change in flow continuity, the degree of mobility of the working element, the nature of the effect on the flow over time, relative length, assembly/disassembly possibilities, the degree of curvature of the channel, material, level of assembly, the degree of rigidity, the degree of mobility of the working element, the possibility of changing the geometry of the working channel , the possibility of temperature regulation, as well as the degree of uniformity of the heat flow in the circular direction of the channel. Means according to the change of flow continuity, namely turbulizers and cavitators, were analyzed in more detail. It is shown that, despite the significant variety of structural and technological design of hydrodynamic means of heat exchange intensification in round channels of constant cross-section, the most demanded by the industry are technologically diverse removable turbulizers that can be replaced or completely removed from the channel if necessary. Less common are cavitators, because they are usually characterized by less versatility and manufacturability, as well as greater sensitivity to the flow rate of the transported flow and its physical properties. Bibl. 44, Fig. 19.
THE UN ILC’S DRAFT CONCLUSIONS ON THE PEREMPTORY NORMS OF GENERAL INTERNATIONAL LAW: THE TALE OF THE ANNEX
Authors: Tladi Dire
Published: March 2024

This paper examines the implications of the General Assembly's failure to adopt a resolution on the International Law Commission's Draft Conclusions on Peremptory Norms (“Draft Conclusions”) during its seventy-seventh session. While the non-decision does not affect the legal status of the Draft Conclusions, it raises questions about its reception and the underlying reasons for the lack of resolution adoption. The inclusion of an Annex with a non-exhaustive list, particularly addressing the right to self-determination, led to opposition from a subset of States. Despite the strong pedigree of the norms in the Annex, dissenting voices, primarily questioning the status of certain norms, played a pivotal role in the non-decision. This paper contends that the dissenters' success in preventing the adoption of a resolution could prompt the International Law Commission to exercise greater caution in its future work. The Commission may become more inclined to avoid addressing sensitive issues, potentially leading to a tendency to seek the lowest common denominator in its outputs. The analysis delves into the potential impact on the Commission's approach and the broader implications for the development and acceptance of peremptory norms of general international law.
Optimization of cycle time for loading and hauling trucks in open-pit mining
Authors: Mnzool Mohammed , Almujibah Hamad , Bakri Mudthir , Gaafar Ahmed , Elhassan Adil A.M , Gomaa Ehab
Published: March 2024

Purpose. The purpose of the paper is to provide open-pit mining operations with practical strategies and insights to optimize truck loading and hauling cycles, ultimately leading to enhanced productivity and economic advantages. Methods. The objectives are to minimize loading time, optimize the haul road network, enhance truck performance, and optimize dumping and return time. By diligently implementing these methods and achieving these objectives, open-pit mining operations can significantly reduce the truck cycle times, resulting in increased productivity, lower costs and improved profitability. Findings. In this case, the total loading time of the excavator and shovel is determined to be 3.98 and 2.92 minutes, respectively, while the hauling time for total loading of the open-pit floor depends mainly on the average distance and speed of 239 m and 10.1 km/hour, which results in 1.53 minutes. Originality. As a result, the total cycle time for open-pit mining is 19.765 minutes, resulting from the total loading time, hauling time for total loading, total dumping time, and total return time for empty transport of 4.265, 8.46, 0.86 and 6.18 minutes, respectively. Practical implications. By combining theoretical analysis with practical insights and site-specific considerations, the paper aims to provide a comprehensive and applicable framework for optimizing truck cycle time in open-pit mining, resulting in improved efficiency and profitability of mining operations.
Organization of processes for complex mining and processing of mineral raw materials from coal mines in the context of the concept of sustainable development
Authors: Salieiev Ildar
Published: March 2024

Purpose. The research purpose is to form the principles and procedures for developing an organizational concept of complex mining of minerals from coal mines using the example of a promising model of transition of the PJSC “DTEK Pavlohradvuhillia” mines to multi-product production of clean drinking water, utilization of methane, secondary coal from rock dumps and slurry reservoirs, low-grade thermal energy of mine groundwater and associated raw materials from desalination waste. Methods. The instrumental basis of the research is the methodology of the process approach to organizing multi-product activities of an enterprise. In addition, an integrated approach is used, including an analysis of existing experience and available complex coal mining and processing technologies. Findings. The paper presents the research results of the prerequisites for the development of innovative technological solutions related to the integrated use of mineral raw materials formed in the process of coal mining and processing. It has been revealed that at the present stage the technological, environmental and economic aspects of such innovations have been sufficiently developed, while the organizational issues regarding the balanced interaction of multi-product production units have poorly been studied. The necessity has been substantiated, as well as the content and sequence of actions have been determined for the development of an organizational concept of complex mining and processing of mineral raw materials in the conditions of PJSC “DTEK Pavlohradvuhillia”. Originality. The principles and procedures for developing an organizational concept of a multi-product enterprise, formed in the research process, provide further development of a methodological basis for searching and substantiating innovative solutions for complex mining of mineral resources from coal mines. They can be used to assess the efficiency and identify weaknesses in current processes for mining and utilization of coal, thermal energy, methane gas, groundwater, dry residue chemicals from desalination and coal mining waste, and to analyse and make changes to improve performance and reduce costs. Practical implications. The proposed complex of organizational solutions based on the process approach tools to ensure the effective implementation of a promising production model for mining and processing of mineral resources in PJSC “DTEK Pavlohradvuhillia” coal mines provides an opportunity to predict the results and develop development strategies based on various scenarios, analyze the interaction of various factors and their influence on the results of the production complex functioning, while reducing costs for experiments and testing of various production technologies.
Effectiveness of trancutaneous electrical nerve stimulationon improving hyposalivation in xerostomia patients with diabetes mellitus
Authors: Rajalaxmi V , Harshini G M , Nathan C V Senthil , Sridevi G , Kumar G Mohan
Published: March 2024

The aim of the study is to analyse the effectiveness of TENS [transcutaneous electrical nerve stimulation] on improving hyposalivation in Xerostomia patients with diabetes mellitus. This was an experimental study with pre and post-test type. Sixty (60) Diabetes mellitus patients with hyposalivation condition were treated with TENS on their external surface of salivary glands and other corresponding buccal nerves. The duration of the treatment is for 15-20 minutes 1 session per day four sessions a week for 4 weeks. A simplified questionnaire is used as a screening tool and Sialometry method is used to analyze the saliva secretion. Saliva samples were collected from the subjects prior to TENS stimulation. The present study states that, the salivary secretion was increased after TENS application in continuous mode (p<0.001) and burst mode (p<0.001). It was illustrated when compared to saliva taken before therapy, particularly in xerostomic diabetes mellitus patients.
Bangladesh J. Sci. Ind. Res. 59(1), 01-06, 2024
Cowpea seed nutrients: Impacts on nutritional quality and acceptability of bread
Authors: Aruna T E , Bolarinwa I F , Olaleye B O , Adepoju O V
Published: March 2024

White bread is a fermented, energy-dense food with minimal protein and certain macro and micronutrients required for important living functions. In this study, bread was fortified with roasted cowpea flour (RCF) in varied amounts (0-20%). The chemical compositions and sensory properties of RCF-supplemented bread samples were evaluated using conventional procedures. Proximate analysis results demonstrated that RCF addition greatly raised the crude fiber (1.78-2.32%), ash (3.08-3.46%), fat (4.58-5.35%), and crude protein (13.81-16.82%) of the bread samples, while carbohydrate content (71.3-66.84%) reduced significantly. Supplementing bread with RCF increased the mineral content (calcium, iron, phosphorus, and magnesium) of the final bread samples. The sensory assessment score demonstrated differences in general acceptability between sample B (5% RCF with 95% wheat flour) and the other bread samples. Thus, supplementing white bread with RCF resulted in bread with improved nutritional content, particularly protein, magnesium, and phosphorous, which are required for good health.
Bangladesh J. Sci. Ind. Res. 59(1), 27-34, 2024
Extrinsic properties of unsaturated polyester resin-based hybrid composite reinforced with waste-fibers versus waste-fibers and talc: A comparative study
Authors: Nahar Aynun , Dhar Sajib Aninda , Pinky Nigar Sultana , Ahmed Aninda Nafis , Miah Muhammed Yusuf , Alam Md Ashraful , Robel Fataha Nur , Bashar Muhammad Shahriar , Mahmud Monika , Gafur Md Abdul
Published: March 2024

This study demonstrates a comparative study on the mechanical, thermal, and morphological properties between waste-fibers/unsaturated polyester (WF/PE) and talc/waste-fibers/unsaturated polyester (T/WF/PE) hybrid composite. Here, reinforcing materials came from discarded coir doormats and jute sacks. The waste fibre was treated with NaOH and then embedded into the polyester matrix using a cold compression moulding technique. On the other hand, talc filler and waste-fibres reinforced polyester resin hybrid composite was developed using the same technique, and a comparative study was performed. WF/PE hybrid composite showed tensile and flexural strength of 36.67 MPa and 38.76 MPa respectively. Talc filler-filled T/WF/PE hybrid composite reported 23.95 MPa of tensile strength and 65.2 MPa of flexural strength. Average Leeb’s robust hardness (LRH) was found 495.667 and 524.75 for WF/PE and T/WF/PE respectively. T/WF/PE hybrid composite presented low-temperature thermal degradation compared to WNF/PE hybrid composite. Surface morphology studies showed that coagulation of fibres, voids, and fibre pullout at the inner interface of the composite was a common phenomenon for both composites. WF/PE composite showed higher electrical resistivity to applied voltage compared to T/WF/PE. Water absorption studies showed that talc filler boosted the water adsorption of the T/WF/PE hybrid composite.
Bangladesh J. Sci. Ind. Res. 59(1), 17-26, 2024
Impact of polyvinyl alcohol for bio-adhesives preparation from tannery solid waste and its application in leather products industry
Authors: Akter N , Chakma S , Fatama K , Alam M N , Azad M A K
Published: March 2024

In this study an attempt has been undertaken to utilize the solid wastes generated by the leather industry, particularly raw trimmings, for making bio-adhesive in a cost effective and sustainable way. To enhance the adhesion properties of prepared bio-adhesive, polyvinyl alcohol (PVA) with different ratios were incorporated. Here raw trimmings was hydrolyzed using calcium oxide (CaO) and yielded maximum gelatin of 38.67% at 75°C and 4.5 hrs. The properties of the prepared adhesives were assessed through the various parameters such as viscosity, ash content, pH, density, moisture content, shear strength and peel strength. Considering shear and peel strength test, bio-adhesive containing Gelatin-PVA ratio of 1:4 have shown characteristics features that can be used as temporary adhesive in different stages of leather products preparations. This ratio almost fulfill the standard requirement.
Bangladesh J. Sci. Ind. Res. 59(1), 07-16, 2024
Case study of agriculture and development projects on Sri lanka army’s contribution to achieve food security
Authors: Wijekoon A , Marikar F
Published: March 2024

This research explores the role of the Sri Lanka Army’s in enhancing food security within the country. Food security is a critical concern in Sri Lanka, influenced by factors such as climate change, agricultural practices, and societal dynamics. Leveraging their capabilities and resources, the Sri Lanka Army can significantly contribute to addressing these challenges. This study examines the potential contributions of the army in terms of food production, infrastructure development, technology adoption, and capacity building and development. Research design is a mixed-methods approach were used by a structured questionnaire targeting various stakeholders, including pertinent Sri Lanka Army personnel and conducted in-depth interviews with key stakeholders. The analysis underscores the importance of collaboration, knowledge transfer, and sustainable practices in achieving lasting food security. Through a comprehensive approach and collaborative efforts involving various stakeholders, including government bodies, local communities, and agricultural organizations, a more resilient and secure food system can be envisioned for Sri Lanka.
Bangladesh J. Sci. Ind. Res. 59(1), 35-46, 2024
Redescription of Pomponia cyanea Fraser, 1948 (Hemiptera, Cicadidae) from the Western Ghats, with a note on its junior synonym P. zebra Bliven, 1964, syn. nov., and Terpnosia polei (Henry, 1931), from Sri Lanka
Authors: Sadasivan Kalesh , Shereef Anzil , Webb Mick
Published: March 2024

Pomponia cyanea Fraser, 1948 from the southern Western Ghats, of peninsular India is redescribed based on the types and fresh specimens with additional data on distribution, morphometrics, and structure of male genitalia. The validity of P. zebra Bliven, 1964, originally described from the Anamalai Hills is discussed. A study of fresh specimens and holotype images of P. zebra revealed no difference in general morphology, wing venation, or structure of male genitalia so as to separate it from P. cyanea, and hence P. zebra is treated as a junior synonym of P. cyanea Fraser, 1948, syn. nov. The taxonomic status of Terpnosia polei (Henry, 1931) from Sri Lanka is revised based on male morphology and is transferred to its original genus as Pomponia polei Henry, 1931, comb. nov. A key to males of known species of Pomponia of Western Ghats is provided.
A new marine littoral species of Oudemansia Schött (Collembola, Neanuridae) from Lakshadweep Island, India with a key to world species of the genus
Authors: Mandal Guru P. , Mandal Pritha , Suman Kusumendra K. , Bhattacharya Kaushik K.
Published: March 2024

A new species, Oudemansia dhritiae sp. nov., is described from Lakshadweep Island, India. It is characterised by unguis with a single internal tooth and without any lateral teeth; mandibles with 11 teeth, six dental setae, and antennae IV with 6 sensilla. Identification key to the world species of Oudemansia Schött, 1893 is provided.
Ant and spider diversity of Karuvatta, a coastal island in Vembanad, Kerala, India
Authors: George Merin Elizabeth , Babu Nishi , Sheeja Abhirami Deepu , Neermunda Nishana , Prasad G.
Published: March 2024

Ants and spiders are good indicators of ecosystem health; therefore, the present work aims to understand the ant and spider diversity of the region Karuvatta a coastal island in Vembanad wetland ecosystem of Kerala. For the purpose of this study, the island was divided into Karamuttu and Naluchira regions. The study conducted by different collection methods like litter sifting, umbrella method, and handpicking, revealed, 72 species of spiders and 36 species of ants. Diversity indices, species accumulation curves, functional group analyses, and PCA of soil factors were worked out. The results showed that Naluchira had better diversity than Karamuttu.
Influence of rice grain traits to their susceptibility to the lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera, Bostrichidae)
Authors: Ramalakshmi V. , Satapathy C.R. , Shimantini B. , Ray Soumik , Gaikwad Dinkar , Yadav Manish Kumar
Published: March 2024

Rice grains of 20 varieties were tested for their physical and biochemical basis of resistance against lesser grain borer, Rhyzopertha dominica (F.) (Coleoptera, Bostrichidae). Physical parameters such as grain length x breadth, thousand seed weight, and grain hardness exhibited significant differences among tested varieties. Grain hardness conferred resistance significantly by resulting in delayed adult emergence (-0.519), and weight loss per cent (-0.603). Biochemical parameters such as total carbohydrates and proteins showed significant differences among the varieties. Total carbohydrate was positive and significantly correlated with adult emergence, but with median development period negatively correlated. Protein content was also found positively correlated with adult emergence and negatively correlated with the median development period.
Araneae of Ochlandra reed breaks of Shendurney Wildlife Sanctuary, southern Western Ghats, Kerala, India
Authors: Asima A. , Prasad G.
Published: March 2024

A study of spiders of Ochlandra reed breaks of Shendurney Wildlife Sanctuary was conducted for a period of four seasons and revealed a total of 52 species of spiders belonging to 38 genera and 12 families. A checklist of spiders of the reed breaks is provided. Thiania indica Asima, Caleb and Prasad, 2023 is a new species reported from the reed breakes.
Evaluation of Carbosulfan 25 EC on the egg parasitoid, Trichogramma chilonis Ishii (Hymenoptera, Trichogrammatidae)
Authors: Kamala I. Merlin , Chandrasekaran S.
Published: March 2024

Experiments to ensure the safety of carbosulfan, to Trichogramma chilonis Ishii in terms of adult emergence and parasitization by direct spraying on egg card technique, revealed significant adverse effect on adult emergence and parasitization. The number of adult emergence ranged from 41.96 to 58.0 and, parasitization 12.62 to 32.6 per cent at 24 HAT; while it was 44.03 to 64.63 and 18.95 to 38.8 per cent respectively at 48 HAT for all the tested three doses of carbosulfan 25 EC @ 250, 500 and 1000 g a.i ha-1. Carbosulfan 25 EC @ 250 g a.i ha-1, recorded maximum adult emergence (58.00 at 24 HAT and 64.63 at 48 HAT) and maximum per cent parasitization (32.60 at 24 HAT and 38.80 at 48 HAT). Hence usage of carbosulfan 250 EC is recommended only at the low dose of 250 g a.i. ha-1.
Efektivitas Proses Pembelajaran Akidah Akhlak Terhadap Peserta Didik di MIUT Tanjung Bonai Aur
Authors: Aqnessa Aqilla F  , Stefani  , Irsyad Hamid  , Fadriati
Published: March 2024

MIUT Tanjung Bonai Aur is the first madrasah established in Nagari Tanjung Bonai Aur, Sumpur Kudus subdistrict, Sijunjung district, West Sumatra, Indonesia. The geographical conditions of the Tanjung Bonai Aur area, which is in the hills and has an uneven population distribution pattern, as well as limited human resources, means that MIUT Tanjung Bonai Aur is not exposed and the development of this madrasah is hampered. Learning at MIUT Tanjung Bonai Aur uses an independent curriculum, character education is prioritized in this curriculum. This research aims to describe the effectiveness of the moral belief learning process at MIUT Tanjung Bonai Aur in an independent curriculum. Qualitative descriptive methods were used in this research to explain MIUT Tanjung Bonai Aur in the educational scope of implementing an independent curriculum based on regional conditions
Implementation of The Use of Thematic-Based Al-Qur'an Learning Media In Elementary Schools
Authors: Nur Maslikhatun Nisak  , Astuti Ruli , Budi Supriyanto Eko
Published: March 2024

This research aims to investigate the implementation of the use of thematic-based Al-Qur'an learning media in grade 4 students at SD Islam Plus Asy Syafiiyah. The research method used is a qualitative approach by collecting data through classroom observations, interviews with teachers, and questionnaires to students. The research results show that the implementation of thematic-based Al-Qur'an learning media in the school has been carried out in a structured and planned manner. Teachers use various types of learning media, such as videos, images, interactive stories, and educational games, which are adapted to the learning theme being studied. Students show a positive response to the use of thematic-based Al-Qur'an learning media, with a high level of interest and enthusiasm. They consider this learning media to help them understand and apply the teachings of the Koran in their daily lives. Teachers report that the implementation of thematic-based Al-Qur'an learning media is effective in increasing students' understanding of the teachings of the Al-Qur'an. They also face several challenges, such as limited technological resources and limited time. To overcome these challenges, efforts are needed to increase access to adequate technological resources and provide training to teachers in developing and implementing thematic-based Al-Qur'an learning media. This research contributes to the understanding of the implementation of the use of thematic-based Al-Qur'an learning media for grade 4 students at SD Islam Plus Asy Syafiiyah. It is hoped that the results of this research can become a basis for schools to increase the effectiveness of Al-Qur'an learning at the elementary school level. Apart from that, this research can also provide guidance and inspiration for other schools who want to adopt a similar approach to learning the Al-Qur’an.
The Effectiveness of the Application M3 Board Learning Media (Mean, Median, and Mode) in Class VIII Statistics Materials at Lekok NU Middle School
Authors: Lailiyah Nisfatul , Zuhri Zainullah
Published: March 2024

This study aims to determine the effectiveness of applying M3 board media (Mean, Median, Mode) in Class VIII Statistics Materials at Lekok NU Middle School. This type of research is quantitative research. The research results show that: 1) The individual analysis results show the effect of using M3 board media on student learning outcomes in class VIII SMPNU Lekok. This is proven through the results of the independent sample t-test showing a significance value (2-tailed) 0.001 <0.05. Therefore, the hypothesis (Ho) is rejected, and the hypothesis (Ha) is accepted. 2) Student activities related to learning from the aspects observed are categorized as active. This is indicated by the acquisition of an average percentage of students' positive activity, namely 96.2% being active in learning mathematics according to predetermined standards, reaching 75% of students being actively involved in the learning process. 3) The average percentage of students positively responding to learning using the M3 board media is 81.13%. This is classified as a positive response as determined by the standard, reaching 75%. 4) The effectiveness of the media in research is seen in student learning outcomes, student activities, and student responses. The results of the descriptive and inferential analysis of the three effectiveness indicators have been fulfilled, so learning using the M3 board media effectively teaches mathematics to class VIII students of SMPNU Lekok.
Analysis of Self-Efficacy Learning Outcomes on Class VII MTSN 01 Pasuruan Viewed Based On Students' Mathematical Ability
Authors: Fariha Dewi , Rachmatika Fajriyah
Published: March 2024

This study aims to analyze self-efficacy's effect on students' learning outcomes in class VII MTsn 01 Pasuruan. This research is a type of descriptive research with a qualitative approach. The main instruments in this study were researchers, and their supporting instruments were diagnostic tests, self-efficacy questionnaires, assignments, and interview guidelines. The subjects in the study were all students of class VII-A MTs Negeri 1 Pasuruan, with three students being selected: one having a high level of self-efficacy, one having a moderate level of self-efficacy, and one having a low level of self-efficacy. The results of this study indicate that the self-confidence variable and mathematics learning outcomes have a significant positive relationship. This means that the higher students' self-efficacy when doing assignments related to mathematics, the better the results of students' learning mathematics. Conversely, if the students' self-efficacy when doing tasks related to mathematics is lower, the students' mathematics learning outcomes will also be lower.
Improving Students’ Creative Thinking Skills Assisted by GeoGebra Software
Authors: Al Ayyubi Ibnu Imam , Rohmatulloh Rifqi , Suryana Irfan , Wijaya Tommy Tanu
Published: March 2024

This study aims to improve students’ creative thinking skills in problem-based, ill-structured, open-ended learning through stimulus. This study used learning strategies that simultaneously develop problem-solving strategies and knowledge discipline. This learning can be achieved if educational activities are focused on authentic, contextual, and relevant tasks or problems so that students can gather the necessary information, evaluate alternative solutions, and present solutions they believe in. Moreover, the ability to generate uncommon or extraordinary ideas must be raised from the problems that exist in learning. The ability to think creatively in mathematics in education using the Problem-Based Learning (PBL) approach assisted by GeoGebra is expected to be a practical approach to educating students in increasing their intellectual potential and familiarizing them to deal with non-routine problems and applying it in their daily life to become a student who can think creatively. This study used a quasi-experimental research method with a quantitative approach conducted at SMA Negeri 2 Cimalaka. The instruments used in this study were questionnaires and tests. This study's approach, which was integrated with GeoGebra, can be used as an alternative to learning mathematics in schools. It can be developed with other approaches according to problems in mathematics.
Profile of Mathematical Reasoning Ability of Students of SMK Ma'wataibin Pagelaran in Solving Problems of Arithmetic Rows and Rows
Authors: Fitri Handayani Ucik , Cahya Setiawati Risma
Published: March 2024

This study describes the profile of students' mathematical reasoning ability in solving arithmetic rows and series problems. Based on the results of observations and interviews with the mathematics teacher of class X SMK Ma'wataibin Pagelaran Malang, information was obtained that 83% of students in the class tended not to be able to conclude the answer. This descriptive research uses a qualitative approach. The sample of this research is 19 students of class X SMK Ma'wataibin Pagelaran. They then selected one each in the high, medium, and low-level categories. Then, interviews were conducted with each subject to explore deeper information. The test instrument used is 1 question that contains four indicators of mathematical reasoning ability. The test results obtained that students in the high mathematical reasoning ability category amounted to 7 students, with a percentage of 36.85%. Students in the moderate mathematical reasoning ability category amounted to 8 students, with a rate of 42.10%. Students in the low mathematical reasoning ability category amounted to 4 students, with a rate of 21.05%. Based on the results of the data analysis, it is shown that high-category students fulfill four indicators of reasoning ability according to their abilities. Medium-category students correctly fulfill three indicators of mathematical reasoning ability: writing conjectures, doing work, and providing reasons/evidence. Low-category students only fulfill one indicator of mathematical reasoning ability, namely writing conjectures.
Pelatihan Perhitungan Harga Pokok Produksi dalam Menentukan Harga Jual Produk Pada UMKM Kuliner di Kelurahan Bengkong Sadai Kota Batam
Authors: Mustika Ita , Ferdila Ferdila , Khadijah Khadijah , Sumardin Sumardin
Published: March 2024

Keputusan penentuan harga jual yang seringkali tidak tepat oleh pelaku usaha UMKM disebabkan oleh kecenderungan mereka untuk menetapkan harga jual tanpa mempertimbangkan perhitungan dan prinsip akuntansi yang benar, tetapi lebih mengandalkan perkiraan mereka sendiri. Tujuan dari kegiatan ini adalah untuk meningkatkan pemahaman para pelaku UMKM Kuliner di Kelurahan Bengkong Sadai Kota Batam mengenai cara menghitung Harga Pokok Produksi (HPP) sehingga dapat lebih tepat dalam menetapkan harga jual.  Metode yang digunakan dalam kegiatan ini adalah dengan memberikan pelatihan dan bimbingan langsung kepada pelaku usaha agar mereka dapat mengetahui harga jual dan biaya produksi produk yang tepat. Evaluasi hasil menunjukkan adanya peningkatan dalam pemahaman dan keterampilan para pelaku UMKM Kuliner di Kelurahan Bengkong Sadai Kota Batam setelah pelaksanaan kegiatan ini, terlihat dari praktik mereka dalam menghitung Harga Pokok Produksi sebelum menetapkan harga jual produk untuk penjualan mereka.