bluuebunny/crossref_metadata_2025 huggingface dataset:
How Does ARBook Promotional Media For MSME Crafts Using Augmented Reality Marker Tracking Works?
Authors: Hermawan Hardika Dwi , Noor Zakky Muhammad , Ulfatun Titik , Nonalisa Septiarida , Saputri Agatha , Yuliana Irma
Published: August 2024

The present study aimed to develop a virtual book displaying Jogja craftwork using Augmented Reality (AR) technology as an interactive promotional media to advertise handicraft products originated from the Special Region of Yogyakarta. "Buku Kerajinan Jogja" (Jogja Handicraft Book) application under this research was developed through Research and Development (R&D). The first stage of its Development was needs analysis and literature study, followed by designing the application using Use Case driven object modeling. The next was the development stage of the application and its functional testing by two media experts. In the fourth stage, two-steps software testing was carried out, namely (1) verification and validation test, and (2) quality and feasibility testing to examine its functionality, usability, portability,  efficiency,  maintainability,  and reliability  (ISO  9126-1).  The findings suggest that (1) the Development of the product, Buku Kerajinan Jogja,  might have gone through a  series of proper software engineering processes from design to testing consistent with the desired specifications. Secondly, (2) the overall performance of Buku Kerajinan Jogja seems to be "Good" with test results of 82.98%, 82.5%, 83.3%, 85.0%, 75.0%, 75.0% consecutively for usability, functionality, reliability, portability, maintainability, and efficiency (ISO 9126-1)
The Impact Of The Gojek And Tokopedia Mergers On The Welfare Of Gojek Drivers
Authors: Suwarsono Djanut Totok , Basrowi Basrowi
Published: August 2024

Gojek and Tokopedia are now giants in the start-up industry in Indonesia. Tokopedia was the largest E-Commerce in Indonesia for the last few years before the presence of Shopee, which became Tokopedia's main competitor. Meanwhile, Gojek is the largest online transportation company in Indonesia. Combining the two is believed to create a unique ecosystem because it combines e-commerce, on-demand services and financial services in one system. This research aims to find out the welfare impact for Gojek drivers after the Gojek Tokopedia Merger. The method used in this research is qualitative research by interviewing randomly selected informants in Serang Regency, Serang City and Cilegon City. The study was conducted in June 2021, involving ten informants, all of whom were Gojek drivers. This research uses qualitative research methods. The sampling technique used is purposive sampling and snowball sampling. The instrument is the researcher himself as the primary research instrument. The researcher goes directly to the field to meet the informants, conducts interviews now, collects research data, analyzes the data to make conclusions. This study concluded that the Merger between Gojek and Tokopedia, in general, did not affect the welfare of Gojek Drivers, both positive and negative effects
PERAMALAN EKSPOR TIGA KOMODITAS UTAMA SEKTOR PERIKANAN MENGGUNAKAN METODE TIME SERIES: ARIMA
Authors: Nabillah Faradiba , Munir Zainul , Permatasari Ririt Dwiputri , Anggraeni Andini Setyo , Safitriyana Safitriyana
Published: August 2024

Batam City is one of the cities in Indonesia which is located in a strategic area on international shipping routes and has a sea area of 3,675 km so it has great potential for exporting fishery products, based on main commodities. Based on data from the Ministry of Maritime Affairs and Fisheries (KKP) in 2022, the performance of the export value of Indonesian fishery products during 2022 experienced positive growth of 21.63 percent compared to 2021. In 2021, the export value of Indonesian fishery products reached 1,258 million USD, increasing to 1,530 million USD in 2022. This fact shows that the marine fisheries sector still offers significant opportunities today. However, there are several obstacles that stand in the way of the export process. These obstacles include the low level of technology application, unequal infrastructure development in various fisheries centers, limitations in providing capital, low utilization of Indonesia's marine potential, and the use of fishing systems in the production process which are deemed unable to utilize Indonesia's marine potential optimally. Given this problem, it is interesting to see the forecast for fishery product exports according to the main commodities in the city of Batam. Is there an increase or a decrease? So the aim of this research is to describe the predicted results of the export value of fishery products according to 3 main commodities, namely shellfish, crab and shrimp in Batam City in the next 5 years. This research method is quantitative using the time series method: ARIMA. The research results show that the estimated export of shellfish and crab will decrease from 2023 - 2027. Meanwhile, the estimated export of shrimp will increase from 2023 - 2027
ANALISIS LEARNING LOSS MAHASISWA SISTEM INFORMASI PADA MATA KULIAH ALJABAR LINEAR
Authors: Riana Riana , Ibrahim Malik , Sunardi Sunardi
Published: August 2024

This study aims to analyze the phenomenon of learning loss experienced by Information Systems students in the Linear Algebra course, particularly in understanding the concept of Gauss-Jordan elimination during online lectures. A qualitative research method was employed with a sample of 59 third-semester students. A questionnaire was utilized as the research instrument for data collection. The findings revealed that 33% of the total respondents encountered significant difficulties in understanding the Gauss-Jordan elimination concept during online learning. These results indicate a significant impact of learning loss in the context of online education, which may affect students' understanding and academic performance. The implications of this research highlight the importance of efforts to enhance the effectiveness of online learning, including the development of more interactive and supportive teaching strategies, as well as improving the quality of interaction between instructors and students in the virtual environment. Further research is needed to gain a deeper understanding of the factors influencing learning loss and to develop more effective solutions for addressing the challenges of online learning in the future
ANALYSIS OF CLUSTERING METHODS ON THE CAUSAL FACTORS OF DIABETES MELLITUS WITH FUZZY C MEANS METHOD
Authors: Adiwidyatma Afdhal Reshanda , Mas Diyasa I Gede Susrama , Trimono Trimono
Published: August 2024

This study focuses on the effectiveness of clustering algorithms, namely Fuzzy C-Means by using k-Means algorithm as a supporting method, in the factors that cause Diabetes Mellitus. Diabetes mellitus is a chronic disease characterized by high levels of sugar (glucose) in the blood. Indonesia ranks 5th with the highest diabetes Mellitus patients in the world. This study aims to understand the pattern of factors causing Diabetes Mellitus and test the effectiveness of the clustering algorithm used. The data analysis methods include data collection, data pre-processing, distribution of cluster numbers, algorithm implementation, model adjustment, model training, model evaluation, and analysis of results. The results showed that the Fuzzy C-Means algorithm gets a coefficient of Fuzzynes score of 0.23 with a validation score of 0.40, while for supporting methods used K-Means algorithm gets a validation score of 0.32. This result shows that Fuzzy C-Means algorithm is superior in clastering the factors that cause Diabetes mellitus. The results of what variables have the most effect on cluster values 0 and 1. Where cluster 0 is a cluster that shows which variables are more at risk of diabetes, while cluster 1 is a cluster whose value shows what variables are far from the risk of causing diabetes mellitus. Then based on the results of the cluster that has been done, random blood sugar variables become the most influential variable on the risk of developing diabetes mellitus, followed by blood sugar variables 2 hours PP, and fasting blood sugar
MODEL MATEMATIKA PEMANASAN GLOBAL PADA KEHIDUPAN PESISIR
Authors: Farhan Muhammad Miftah , Subhan Muhammad
Published: August 2024

Global warming has become one of the big problems being faced in the 21st century. Global warming and depletion of the ozone layer due to excessive increases in Green House Gas (GHG) emissions in the atmosphere have a negative impact on the sustainability of coastal ecosystems. This research aims to describe the impact of rapid GHG emissions on coastal life, and this research also wants to determine the mathematical relationship between increasing GHGs and global warming. Rapid GHG emissions from various sources also drive global warming and cause several natural disasters. The method used in this research is the descriptive method. This research develops a mathematical model using four variables. Based on the results of simulation analysis, it shows that GHG and global warming can be controlled by ehriching coastal forests, but if not, the human population could lose the ability to survive and around one third of the total forest ecosystem will be lost by the end of this century
PERBANDINGAN ANALISIS REGRESI LOGISTIK BINER DAN NAÏVE BAYES CLASSIFIER UNTUK MEMPREDIKSI FAKTOR RESIKO DIABETES
Authors: Aristawidya Rafika , Indahwati Indahwati , Erfiani Erfiani , Fitrianto Anwar , A. A. Muftih
Published: August 2024

Diabetes is a global health problem that is increasing in prevalence worldwide. This study compares the performance of two data analysis methods, namely binary logistic regression and naïve bayes classifier in predicting diabetes risk. This study aims to identify factors that significantly affect diabetes risk and classify diabetes risk using binary logistic regression, then compare the classification with the naive bayes classifier algorithm. Binary logistic regression models the relationship between independent predictor variables and binary dependent variables, while naïve bayes classifier uses the assumption of independence between variables. In this study, both methods were evaluated based on accuracy, sensitivity, specificity and positive predictive value. The results show that the factors that influence the risk of diabetes are Age, Gender, Polyuria, Polydipsia, Genital thrush, Itching, Irritability, and Partial paresis. Furthermore, the binary logistic regression results have a higher classification accuracy (92.31%) compared to the naïve bayes classifier (84.61%). Therefore, binary logistic regression was identified as the best method to predict diabetes risk in the context of this study
PENGEMBANGAN LKPD BERBASIS CREATIVE PROBLEM SOLVING UNTUK MENINGKATKAN KEMAMPUAN BERPIKIR KRITIS PADA MATERI SEGI EMPAT DAN SEGITIGA
Authors: Anggraini Ahda Zuliana , Muniri Muniri , Zahroh Umy
Published: August 2024

The purpose of this research to produce Creative Problem Solving (CPS)-based LKPD that meet the criteria of validity, practicality and effectiveness to improve critical thinking skills in quadrilateral and triangle material. The research type is Research and Development (R&D) ADDIE model which Analysis, Design, Development, Implementation and Evaluation. Data collection techniques use observation, interviews, questionnaires and tests. The product test subjects were class VIII students at SMP Negeri 1 Patianrowo and SMP Negeri 2 Patianrowo. The results of the research according to expert assessment show that the teaching materials developed have valid criteria. This means that the teaching materials developed are suitable for use by students. The assessment based on the results of teacher and student response tests shows that the teaching materials developed meet the criteria of being very practical. This means that the teaching materials developed can be implemented in the mathematics learning process, especially in quadrilaterals and triangles. The posttest results show that there is a significant difference in critical thinking abilities between the control class and the experimental class. This means that the teaching materials developed have an effect on increasing students' critical thinking skills with the percentage of increase being at a very high effect, namely 80.2%. Based on this assessment, it can be concluded that the teaching materials developed have met the criteria for validity, practicality and effectiveness in improving critical thinking skills of student in quadrilateral and triangular material
PENGEMBANGAN INSTRUMEN TES UNTUK KEMAMPUAN BERPIKIR REFLEKTIF MATEMATIS PADA MATERI ALJABAR
Authors: Kurniawati Eka Fitri , Yuhana Yuyu
Published: August 2024

This research aims to produce a test instrument for students' mathematical reflective thinking ability on algebraic material. This research used the Research and Development (R&D) method with the ADDIE model (Analysis, Design, Development, Implementation, Evaluation). The subjects used were 35 seventh grade students in one of the private junior high schools in Tangerang City. Based on the results of the material expert validation received an average score of 87.7% with very valid criteria. The validity of the items received an average of 0.82 very valid criteria. Then it has a Chronbach's Alpha value of 0.945 which means reliable. In addition, the level of difficulty of moderate questions is 3 questions, difficult 1 question and easy 1 question. The results of the student response questionnaire after working on the test instrument obtained a score of 78% with good criteria. Then based on these results, the development of test instruments for students' mathematical reflective thinking skills is valid, reliable and worthy of use
PENGEMBANGAN INSTRUMEN EVALUASI BERBASIS KEMAMPUAN PEMECAHAN MASALAH PADA MATERI EKSPONEN DI TINGKAT SMA
Authors: Rosyadi M. , Yuhana Yuyu
Published: August 2024

The purpose of this research is to produce a test instrument to measure mathematical problem-solving ability by looking at the development procedures and the quality of the mathematics problem solving instruments developed. The research used is the type of research (R&D) that is the development of test instruments to measure the ability to solve mathematical problems. The development model of this research instrument is developed on the basis of the Tessmer model which is the formative type of evaluation, i.e. (1) preliminary stage, (2) self evaluation stage, (3) prototyping stage (expert reviews, one-to-one and small group) and (4) field test stage. The test subject of the experiment were X Students of SMAN 2 Bayah which amounted to 25 students. Based on the results of experiments conducted, it is found that: (1) math problem solving test instrument has been said "valid" because based on the CVR results are 1 and meet the criteria of  ≥ 0.99 and CVI is 1 with a category perfectly suitable or in the range 0,68-1,00 (2) mathematical problem-solving test instrument is said to be reliable with a value of 0.754 with high category, and is in the range of 0.60 < r11 < 0,80 (3)instrumen test the math problem solving device has a level of difficulty good then the average level of difficulty obtained is 0.58 with the medium category that is in the range of 0.31 to 0.70. (4) instrumen test math problem solving devices has a power a good differentiator and the average distinguishing power obtained is 0.35 with sufficient category or is in the range Dp > 0.2. As a result, the produced instrument is appropriate for assessing pupils' mathematical problem-solving abilities
UPAYA PENINGKATAN KEMAMPUAN BERPIKIR ANALISIS MATEMATIKA MELALUI MODEL MAKE A MATCH SISWA SEKOLAH DASAR
Authors: Febiana Cindy , Purbasari Imaniar , Riswari Lovika Ardana
Published: August 2024

The aim of the research is to determine the application of the Make A Match model as an effort to improve the mathematical analytical thinking skills of class IV students at SDN 5 Tegalrejo in corner material with the help of paired cards. This research method is classroom action research on 21 class IV students at SDN 5 Tegalrejo. Collection techniques through pre-cycles, model application, evaluation tests, observation of learning activities and interviews. The results of the research showed an increase in the mathematical analysis thinking skills of fourth grade students at SDN 5 Tegalrejo in applying the Make A Match model with the help of paired cards in corner material. The scores obtained in the Pre-cycle were with a class average of 62.85, the first cycle had a class average of 72.61, and the second cycle had a class average of 88.09. Increasing mathematical analysis skills takes place in mathematical problem-solving activities through paired cards and evaluation of cycle I and cycle II through the ability to differentiate, organize and attribute. Students are able to achieve analytical thinking skills when the student's score has successfully achieved 3 indicators of students' analytical thinking skills, namely differentiating, organizing and attributing. Students gain knowledge of the concept of angles through understanding problems and surrounding angles, organizing mathematical and applied problems and making attributions in mathematical problems. The percentage of students' analytical thinking ability is achieved if it exceeds ≥ 60% of the classical percentage of students in the high category
ANALISIS KEMAMPUAN LITERASI NUMERASI SISWA SMKN 7 SEMARANG DALAM MENYELESAIKAN PERSAMAAN LINGKARAN BERDASARKAN KEMAMPUAN AWAL
Authors: Darojah Naila Ulya , P Agnita Siska , Muhtarom Muhtarom , Kurniawati Annisa
Published: August 2024

The purpose of this research is to describe the numeracy literacy abilities of class XI TITL 2 students at SMKN 7 Semarang in solving circle equation problems based on initial abilities. The type of research used is qualitative research with descriptive methods. Subject selection is based on students' initial abilities based on the results of diagnostic test scores to categorize students' initial abilities into categories of students who have high initial abilities with a score criteria of 75 < score ≤ 100 , medium initial abilities with a score criteria of 35< score ≤ 75 and low initial abilities with a score criteria of 0 < score ≤ 35.Then 6 subjects were selected, each consisting of 2 student with high, medium and low initial ability. The instruments used in this research were numeracy literacy skills tests and interviews. The numeracy literacy ability test is presented in the test questions in the form of 2 numbered story questions and will be analyzed to reveal three indicators of numeracy literacy. The data collection analysis techniques used in this research are, 1) data reduction, 2) data presentation, and 3) drawing conclusions. The results of the research show that: 1) students with high initial abilities are able to reveal all three indicators of numeracy literacy ability, 2) students with medium initial abilities are quite capable of fulfilling the first and second indicators of numeracy literacy ability, but are less able to fulfill the third indicator of numeracy literacy ability , 3) students with low initial abilities in solving circular equation problems are quite capable of meeting the first indicator of numeracy literacy ability, but are less able to fulfill the second and third indicators
IMPLEMENTASI AUGMENTED REALITY (AR) DI PERGURUAN TINGGI MENGGUNAKAN UJI-T BERPASANGAN
Authors: Sihotang Siti Fatimah
Published: August 2024

Today, higher education faces growing challenges in integrating technology to enhance unique and innovative student learning experiences. One technology that has been in the spotlight in recent years and is very widely used today is Augmented Reality (AR). Considering that currently, there are still many students who have difficulty understanding learning concepts well, have difficulty applying the material studied in everyday life, it is hoped that the use of Augmented Reality (AR) in higher education can be a solution. Augmented Reality (AR) can change the way students view learning as well as its extensive use which can also be felt by all elements of the academic community at universities as tertiary institutions. Thus, this research aims to find out how much influence the use of Augmented Reality (AR) has in universities, namely lecturers, students and universities. The method used in this research is paired t-test. From the research results, it is known that the application of Augmented Reality (AR) has a significant effect in higher education with an effectiveness value of 70% which is included in the interpretation category of effectiveness as quite effective
INTEGRATION OF GEOGEBRA-BASED DIRECT LEARNING MODELS: IMPLEMENTATION IN MATHEMATICS LEARNING
Authors: Sumarauw Stefani Jully , Wenas John R. , Sumarauw Sylvia J. A.
Published: August 2024

Teachers need to integrate applications/media into mathematics learning to improve the quality of mathematics learning. Initial observation results show that teachers in the learning process only use direct learning models without involving learning media that can attract students' interest in learning. This results in low student learning outcomes in Tangent Lines to Circles material. One application that can be used as a mathematics learning medium is the GeoGebra application. This research aims to describe the learning outcomes of class VIII students at SMP N 1 Eris on Tangent Lines to Circles material taught using the direct learning model with the GeoGebra application, which is better than the learning outcomes of students taught using the direct learning model without the GeoGebra application. The research subjects were class VIIIA as an experimental class (a class that used a direct learning model with the GeoGebra application) consisting of 20 students and class VIIIB as a control class (a class that used a direct learning model) composed of 20 students. The instrument used in this research is a test in the form of essay questions to measure student learning outcomes. The data collection technique is to give a pretest and posttest in the form of descriptive questions consisting of 5 questions. Based on the research results, it can be concluded that learning using the direct learning model with the GeoGebra application on circle tangent material in class VIII students at SMP Negeri 1 Eris is better than learning using the direct learning model without the GeoGebra application
PERAMALAN NILAI TUKAR PETANI PROVINSI ACEH: DITINJAU DENGAN METODE DOUBLE EXPONENTIAL SMOOTHING DAN HOLT WINTER
Authors: Razi Zulfa , Mirunnisa Mirunnisa , Maryanti Maryanti , Nurhayati Nurhayati
Published: August 2024

This research aimed to compare the performance of the Double Exponential Smoothing and Holt-Winter methods in forecasting the Farmer Exchange Rate (NTP) for the Horticulture Farmer Subsector in Aceh Province. Secondary data on the NTP for the Aceh Horticulture Subsector from 2020-2023 was obtained from the Aceh Provincial Central Statistics Agency (BPS) website. The data processing was carried out using the R software. The results showed that the Double Exponential Smoothing method had a Root Mean Squared Error (RMSE) of 3.413201, a Mean Absolute Percentage Error (MAPE) of 2.85835, and a Mean Percentage Error (MPE) of -0.5980113. Meanwhile, the Holt-Winter's Additive method had an RMSE of 4.055652, a MAPE of 3.055992, and an MPE of 0.2534276. The best forecasting method was selected based on the smallest RMSE, MAPE, and MPE values, which was Double Exponential Smoothing. The 12-month forecast using the Double Exponential Smoothing method indicated that the lowest NTP would occur in January 2024 at 106.7195, while the highest NTP would be in December 2024 at 113.6443
PENDEKATAN NONPARAMETRIK UNTUK MENGANALISIS KESEHATAN MENTAL MAHASISWA DALAM KONTEKS PROSES PEMBELAJARAN
Authors: Caesar Muhammad Imamul , Fauzan Muhammad Al , Faidah Defi Yusti
Published: August 2024

Mental health is a condition where individuals have good emotional, psychological, and social well-being, influencing how they think, feel, and act. This study analyzes the mental health of students aged between 18 and 24 years using a nonparametric statistical approach. Data were collected from a survey of 65 students regarding gender, field of study, and year of study, with a focus on mental disorders such as depression, anxiety, and panic attacks. Descriptive analysis methods and the Chi-Square test with α = 5% showed no significant relationship between gender and mental health disorders. However, a significant relationship was found between field of study and anxiety, while no significant relationship was found between field of study and depression or panic attacks. Additionally, there was no significant relationship between the year of study and any of the mental health disorders examined. These findings provide insights for higher education institutions to design effective policies and interventions to support students' mental health
PENINGKATAN KEMAMPUAN KOMUNIKASI DAN PENALARAN MATEMATIS SISWA MADRASAH ALIYAH MELALUI MODEL PEMBELAJARAN KOOPERATIF TIPE TEAMS GAMES TOURNAMENT
Authors: Qadriah Laila , Maryanti Maryanti
Published: August 2024

Communication skills and mathematical reasoning are one of the goals of mathematics learning. Where communication is defined as the ability to write, read, listen, study, interpret, and evaluate ideas, symbols, terms, and mathematical information. Meanwhile, mathematical reasoning is a brain habit that if developed properly and consistently will make it easier to communicate mathematics both in writing and orally. Therefore, a relevant learning model is needed to optimize, improve, and develop students' communication and mathematical reasoning skills. One of these learning models is  the Teams Games Tournament (TGT) type cooperative learning model. The purpose of this study is to find out: (1) Whether the improvement of communication and mathematical reasoning skills of students who obtain learning with the TGT type cooperative learning model is better than that of students who obtain learning with conventional approaches, and (2) What are the attitudes of students towards mathematics learning who acquire learning with the TGT type cooperative learning model. This study is an experimental research with  a pretest-posttest control research design of the design group. The population in this study is all students of class XI MAN Darussalam Aceh Besar consisting of five classes. Meanwhile, the sample consisted of two classes, namely the experimental class and the control class which were taken by random sampling. The instruments used to obtain research data are in the form of communication and mathematical reasoning ability tests, and attitude scale questionnaires. The statistical test used to analyze data on improving communication skills and mathematical reasoning is a two-track anava test, while the attitude scale questionnaire is calculated based on percentages. The results of the study show that the overall improvement of communication and mathematical reasoning skills of students who obtain learning with the Teams Games Tournament type cooperative learning model  is better than students who acquire learning with conventional approaches. From the results of the student questionnaire, it was concluded that in general, students have a positive attitude towards mathematics learning using the TGT type cooperative learning model
ANALISIS SENTIMEN KEPUASAN PELAYANAN TRANSPORTASI ONLINE GOJEK MENGGUNAKAN ALGORITMA EXTREME LEARNING MACHINE
Authors: Riskiyah Ameliyah , Fahrudin Tresna Maulana , Hindrayani Kartika Maulida
Published: August 2024

With the rapid advancement of technology, online transportation has become the main solution for many people in Indonesia to travel easily and efficiently. Companies such as GOJEK are constantly innovating to improve their services, resulting in many responses and reviews from users. This research aims to analyze customer satisfaction with these online transportation services by analyzing the sentiment of user opinions on the Twitter platform. Sentiment analysis plays a very important role in decision making by classifying user reviews. Data was retrieved through a crawling process using specific keywords related to each service. The data preprocessing process includes case folding, tokenizing, normalization, stemming, filtering, and convert negation. This aims to clean and prepare the data so that it can be processed using the algorithm better. This process includes removing irrelevant elements from the text data, converting the text into a consistent or more standardized form, reducing the number of features in the data by stemming, and converting the text into numbers or vectors so that it can be processed by the algorithm. Feature extraction is performed using the Word2Vec model to convert text into a numerical vector representation that can later be processed by ELM. Converts words into numeric vectors in a high-dimensional space, where words that have the same context in the text are close to each other in that space. The ELM (Extreme Learning Machine) algorithm is used as a classification model due to its high training speed and good generalization ability. Model evaluation is done using confusion matrix which measures classification performance through accuracy, precision, recall matrix. The results of this study show that the ELM algorithm with Word2Vec feature extraction is able to classify user sentiment with a high level of accuracy. This research provides insight into user satisfaction with online transportation services and can be a reference for companies to improve their service quality
PENGGUNAAN K-MEANS DAN HIERARCHICAL CLUSTERING SINGLE LINKAGE DALAM PENGELOMPOKKAN STOK OBAT
Authors: Sibarani Michael Alexander Justin Audison , Diyasa I Gede Susrama Mas , Sugiarto Sugiarto
Published: August 2024

Adequate and efficient availability of medicines is necessary to ensure patients receive optimal care. However, inefficient drug stock management can result in various problems, such as waste of resources, lack of necessary drugs, or even excessive stock. This study aims to improve the efficiency of the drug stock management process by using KMeans Clustering and Hierarchical Clustering methods on drug stock data. The data used includes information on initial stock, purchase, incoming distribution, service, outgoing distribution, outgoing adjustment, and final stock. Clustering analysis was performed to identify patterns in the drug stock data, which was then validated using Silhouette Score. The results showed that Hierarchical Clustering was able to achieve a Silhouette Score of 0.976, while KMeans achieved a Silhouette Score of 0.954
THE URGENCY OF CRITICAL THINKING DISPOSITION IN MATHEMATICS LEARNING IN THE INDEPENDENT CURRICULUM
Authors: Silwana Amalia , Widayanti Evi
Published: August 2024

The purpose of this article is to describe the definition and characteristics of critical thinking disposition, mathematics learning in the independent curriculum, and to analyze the urgency of critical thinking disposition in mathematics learning, especially in the application of mathematics learning in the independent curriculum. This research is descriptive research using the systematic literature review method through searching for accurate and relevant references, namely articles, books, and other relevant sources. From the results of the analysis, it is concluded that the urgency of critical thinking disposition in mathematics learning in the independent curriculum can be seen from several dimensions of the Pancasila student profile, especially the critical reasoning dimension which involves critical thinking disposition and needs to be built optimally and balanced in mathematics learning; the things that are emphasized in mathematics learning in the independent curriculum and involve critical thinking disposition include mathematical problem solving activities, student independence in understanding the mathematics material, and discussion and collaboration activities; mathematics learning models in the independent curriculum that direct students to involve critical thinking disposition; and projects to strengthen the Pancasila student profile in mathematics learning which involve critical thinking disposition in activities and their assessments
APLIKASI DARI N-SOFT SET PADA DATA DENGAN OBJEK BERKELOMPOK
Authors: Shodik Fajar , Nazra Admi , Yanita Yanita
Published: August 2024

In this paper, an application of N-soft set on data with grouped objects will be presented using the construction concept in strait soft set theory to solve a problem in the decision-making process. For each parameter, a weight value will be determined, and from this data, a threshold will be set in such a way that a T-level soft set form is possible. This research is a descriptive qualitative study with a case study approach. An interesting result from this study is that an object with the lowest rank can have the highest rank in a certain group of objects
GIS based – GALDIT method for aquifer vulnerability assessment to seawater intrusion: Case of a qp2-3 aquifer of Mekong Delta
Authors: Pham Nga Viet Thi ,   Hanoi University of Mining and Geology, Hanoi, Vietnam
Published: August 2024

Recently, seawater intrusion (SWI) in coastal aquifers is a global issue that is exacerbated by sea-level rise, climate change, and an increasing dependency on coastal fresh groundwater resources for water supply. Vietnam's Mekong Delta has a flat topography, a dense river network, and a 700 kilometer coastline covering the region's west and east. The Mekong Delta is facing increasingly serious saline intrusion. This paper describes the results of the examination using the GALDIT method as a model to evaluate the vulnerability of seawater intrusion. The method is used to determine the trend of groundwater contamination by seawater intrusion in the qp2-3 aquifer of the Mekong Delta, this Upper-middle Pleistocene aquifer (qp2-3) is one of the main productive aquifers in the Mekong Delta. The analysis result in 2015 shows a moderate and high level of vulnerability in which the highly vulnerable area is along the Tien River and at the depression cone area in Ca Mau. The analysis is reconducted for the time of 2030 with the predicted values for the groundwater level through the forecasting tool. By comparing the model of two times of 2015 and 2030, the results indicated that the impact of the continuous decline of groundwater level is greater than the impact of sea level rise. If the rate of drawdown is kept the same, by 2030 the highly vulnerability area will have expanded to two-thirds of the Mekong Delta. The GALDIT method is a good approach for saltwater intrusion research and moreover water management, and environmental management, such as evaluating the most sensitive areas for monitoring or imposing restrictions where necessary.
Research on the application of artificial intelligence tools to predict the operating temperature and pressure of the pipeline transportation system at the Hai Thach - Moc Tinh field
Authors: Nguyen Tuan Thanh , Nguyen Thinh Van , Trieu Truong Hung ,   Hanoi University of Mining and Geology, Hanoi, Vietnam
Published: August 2024

The observation of operating parameters for the single-phase or multi-phase flows of oil and gas pipelines always plays an important role and prerequisite in daily operation. The inlet and outlet parameters of the pipeline such as pressure and temperature will greatly affect the efficiency of the production and transportation process of fields. These parameters are very important. It must be required to observe carefully and strictly. In fact, pressure and temperature signal gauges will always be set up at the inlet and outlet of the pipeline for continuously variable transmission of the signal to the central control room, then the operator can observe regularly. Alarms will be triggered when the signal goes out of the setting operation area. However, the operational parameters transmitted from this gauge are only available after the actual fluid flow passes through the pipeline. This will limit when the operator needs to apply calculation methods to pre-predict the flow regime, and operating parameters of the fluid in the pipeline when fluid flows has not passed through the pipeline. From that approach, the paper presents the result of research on the application of machine learning algorithms (ML) to build models to predict operating conditions of three-phase flows in the pipeline at Hai Thach- Moc Tinh field based on input parameters such as the open of wellhead flow control valve of wells located in wellhead platform WHP-MT1, WHP-HT1, and the commercial gas volume. The results of the research show that the ML calculation method gives the result which is only +/-2 barg/20C difference compared to the field data obtained from pressure (HT1-PT-0911) and temperature (HT1-TI-0911) signals set up at the outlet of the transportation pipeline at the Hai Thach-Moc Tinh field.
THE ECONOMIC PROSPECTS OF SOME ADJARA TOURISM INFRASTRUCTURE LOCATIONS
Authors: Mgeladze Lasha
Published: August 2024

Lasha Mgeladze
E-mail: Mgeladzee@yahoo.com
Master, Batumi Shota Rustaveli State University
Batumi, Georgia
https://orcid.org/0009-0005-2445-2567
 
Abstract: The present work discusses basic characteristics of economic potential of some Adjara tourism infrastructure locations, as well as prospect economic views connected to tourism industry. Besides, it envisages certain issues of Adjara tourism infrastructure development, their solutions and general economic strategies, its impact on socio-economic, ecological and demographic problems of region population, in particular, focus is on those basic tourism locations, the economic potential of which has positive reflect on socio-economic life of region population. The given Article gives proper conclusions in which Author’s views are established about Adjara tourism development issues and capacities.
 
Keywords: Idnustry,  Infrastructure, Location, Transformation, Capabilities       
 
 JEL classification: R1, R3
Gout and erectile dysfunction: Increased carotid intima-media thickness is independently associated with greater likelihood for erectile dysfunction
Authors: Yigit Ece , Yasar Serdar , Can Meryem , Bayraktar Zeki
Published: August 2024

Objectives: The study aimed to compare gout patients and healthy subjects in terms of erectile dysfunction, carotid intima-media thickness (CIMT), and other variables and to investigate the relationship between CIMT and erectile dysfunction.

Patients and methods: This cross-sectional study was conducted with 134 male gout patients (median age: 56 years; range, 48 to 62 years) and 104 healthy males (median age: 47 years; range, 40.5 to 54.5 years) between September 2022 and June 2023. Age, comorbidities, height, weight, laboratory results, gout treatment data, insulin resistance evaluated by the homeostatic model assessment for insulin resistance, presence and severity of erectile dysfunction evaluated by the six-item International Index of Erectile Function erectile function domain (IIEF-EF), and CIMT measured by ultrasound were assessed.

Results: Hypertension, hyperlipidemia, greater insulin resistance, erectile dysfunction, and bilaterally increased CIMT were significantly more common in the gout group. The mean IIEF-EF score of gout patients was significantly lower than that of controls. Multivariable logistic regression revealed increased CIMT as the sole parameter independently associated with erectile dysfunction (p=0.010). When both groups were categorized into CIMT-based subsets, erectile dysfunction was present in 97.9% of patients with coexistence of gout and increased CIMT (≥0.9 mm), a significantly higher proportion compared to the other three subsets (p<0.001).

Conclusion: Increased CIMT was the only factor independently associated with a greater likelihood of erectile dysfunction in patients with and without gout; however, coexistence of gout and increased CIMT appears to result in a significantly elevated risk for erectile dysfunction.
New and future perspectives in familial Mediterranean fever and other autoinflammatory diseases
Authors: Çam Veysel , Ercan Emreol Hülya , Ozen Seza
Published: August 2024

Systemic autoinflammatory diseases are a group of disorders characterized by sterile episodes of inflammation resulting from defects in the innate immune system. In contrast to classical autoimmune diseases, where circulating autoantibodies and the adaptive immune system are involved, these conditions involve excessive presence of proinflammatory cytokines leading to inflammatory attacks. Excessive cytokine production, functional mutations in regulatory pathways, excessive interferon production, defects in the nuclear factor-kappa B signaling pathway, abnorARCHmal protein folding, and complement activation are the mechanisms leading to autoinflammatory diseases. A defect in the mTOR pathway and trained immunity are newly discovered possible causes in pathogenesis. Early onset and severe forms of classical rheumatological diseases have been more frequently associated with autoinflammatory diseases in the last decade. Therefore, monogenic autoinflammatory diseases should be considered in rheumatic diseases with family history, consanguinity, early onset, and severe disease. The combination of functional and genotyping research will help to identify unclassified patients. The optimal treatment strategy remains uncertain, functional studies such as interferon signature and cytokine profiling, may prove valuable in guiding the treatment process. Stem cell transplantation strategies in autoinflammatory diseases with partial response to biological therapies can be considered. Autoinflammatory diseases are becoming increasingly complex and are bringing new perspectives to already known rheumatic diseases. Although we have effective treatments, we are still far from personalized recommendations.
New Evidence on the Sixteenth-Century East Syriac Missions in the Malabar Coast: The Muttuchira Inscription (1581 CE) in Context
Authors: Perczel István , Chandran Saranya
Published: August 2024

The present study deals with an inscription on a granite stele in the township of Muttuchira, Kottayam District, Kerala, India. The inscription was written in Malayalam, in the ancient Dravidian vaṭṭeḻuttu script, in 1581. It commemorates the erection of a series of open-air crosses, as well as the placement of a Persian Cross, called the Bleeding Cross. The first cross was erected in 1528 and the last one in 1581. The inscription was first published in 1930 and, ever since, several concurrent interpretations thereof have been proposed. However, all the previous transcriptions and interpretations were based on a poorly executed estampage, which gave rise to a series of misunderstandings. This study is based on a new, clearly readable estampage and gives a transcription in vaṭṭeḻuttu Unicode fonts and in Modern Malayalam characters as well as a Modern Malayalam and an English translation, together with a detailed historical interpretation permitted by new material collected in Kerala in the last two and a half decades. The new deciphering of the inscription sheds light on the role of Muttuchira, one of the main centres of the anti-Portuguese and anti-Latin resistance of the local Christians in the sixteenth century, on the origin of the open-air crosses defining the landscape of Central Kerala, and on the vicissitudes of Christian epigraphy in Kerala.
ANALISIS KANDUNGAN FORMALIN DALAM BAKMI BASAH YANG BEREDAR DI KOTA SURAKARTA
Authors: Liudianto Ricky Era , Wahyuningrum Nanda Sri
Published: August 2024

Bakmi merupakan salah satu makanan yang banyak digemari oleh masyarakat Indonesia dariorang dewasa sampai dengan anak-anak, karena mempunyai rasa yang enak dan harganya yang murah.Bakmi basah yang mempunyai waktu simpan yang relatif singkat ini membuat beberapa penjualmenambahkan bahan pengawet seperti formalin. Formalin banyak disalahgunakan sebagai zatpengawet untuk makanan. Penelitian ini bertujuan untuk mengetahui ada tidaknya kandungan formalinpada bakmi basah yang dijual di pasar tradisional Kota Surakarta. Analisis formalin dalam sampelbakmi basah dilakukan uji kualitatif dan kuantitatif. Uji kualitatif dilakukan dengan asam kromatofatdan uji kuantitatif dilakukan dengan metode Spektrofotometri UV-Vis. Analisis denganSpektrofotometri UV-Vis digunakan untuk penetapan kadar formalin dalam sampel bakmi basah.Hasil pengujian kualitatif terjadi perubahan warna dari warna kuning menjadi warna merah keunguandan hitam terlihat samar. Perubahan warna tersebut membuktikan adanya kandungan formalin padasampel bakmi basah. Hasil penetapan kadar dalam sampel bakmi basah dari Pasar Legi 1 dan 2 =0,0100% dan 0,0009%, Pasar Gedhe 1 dan 2 = 0,0211% dan 0,0131%, dan Pasar Kadipolo 1 =0,0202%.
UJI AKTIVITAS ANTIBAKTERI EKSTRAK ETANOL DAUN KITOLOD (Isotoma longiflora L.) C, PREST TERHADAP BAKTERI Staphylococcus aureus DENGAN KONTROL ANTIBIOTIK OFLOXACIN
Authors: Angganawati Rahmadhani Tyas , Nisa Triya Choirin
Published: August 2024

Tumbuhan kitolod (Isotoma longiflora L.) mengandung senyawa alkaloid, flavonoid dan saponin. Kandungannya dipercaya mempunyai aktivitas antibakteri. Penelitian ini bertujuan untuk mengetahui aktivitas antibakteri ekstrak etanol daun kitolod terhadap bakteri Staphylococcus aureus. Jenis penelitian ini adalah deskriptif eksperimental. Ekstrak etanol daun kitolod diperoleh dengan metode maserasi menggunakan pelarut etanol 96%, ekstrak kental yang diperoleh dilarutkan dengan akuades dan diuji daya antibakterinya dengan metode difusi padat terhadap bakteri Staphylococcus aureus pada konsentrasi 100mg/ml, 150mg/ml 200mg/ml, 250mg/ml, dan 300mg/ml. Hasil uji yang diperoleh diuji dengan ANOVA. Hasil analisa statistik One Way ANOVA menunjukkan terdapat perbedaan signifikan pada perbedaan konsentrasi ekstrak terhadap daya hambat bakteri (sig=0,000). Berdasarkan hasil penelitian disimpulkan bahwa ekstrak kental daun kitolod mampu menghambat pertumbuhan bakteri Staphylococcus aureus dengan daya hambat optimum pada konsentrasi 300mg/ml dengan diameter zona hambat (14,3 mm). Daya hambatnya lebih rendah dibanding dengan kontrol positif Ofloxacin 4000 mg/ml (daya hambat 20,67 mm).
ANALISIS PENGARUH CITRA APOTEK TERHADAP KEPUASAN KONSUMEN (STUDI DI APOTEK ASTU PEDAN KLATEN)
Authors: Ma'rufah Siti , Hidayah Wuri Anjar
Published: August 2024

Pembangunan suatu bangsa tidak dapat dipisahkan pokok, yaitu kebutuhan sandang, pangan,dan papan. Kebutuhan lain yang tidak kalah pentingnya yaitu kebutuhan akan hiburan dan kesehatan.Peningkatan akan kebutuhan kesehatan tidak akan bermakna apabila tidak di imbangi olehketersediaan obat yang memadai dan mudah diperoleh. Apotek adalah salah satu sarana yang dapatdigunakan untuk pemenuhan kebutuhan tersebut. Seiring banyaknya jumlah penduduk serta kesadaranakan kebutuhan kesehatan, masyarakat mengharapkan apotek bukan hanya sekedar melayani denganbaik dan tepat, namun juga menghadirkan produk yang lengkap dengan harga yang terjangkau.Penelitian ini bertujuan untuk menguji pengaruh variable kualitas pelayanan, kelengkapan produk, danharga terhadap kepuasan konsumen. Objek penelitian ini adalah apotek astu pedan klaten. Data dalampenelitian ini diperoleh dari 100 respondenyang berusia 18 tahun dan telah bertransaksi lebih dari satukali di Apotek Astu Pedan Klaten. Wawancara dilakukan terhadap 10 responden. Pengelolaan datamenggunakan spss versi 16, dengan uji validitas dan realibilitas, analisis deskriptif, dan uji asumsiklasik. Hasil dari penelitian ini yaitu variabel kualitas pelayanan dan variabel harga berpengaruhsecara signifikan terhadap kepuasan konsumen, sementara variabel produk tidak berpengaruhsignifikan terhadap kepuasan konsumen Apotek Astu Pedan Klaten. Hal ini dapat dijadikan tolak ukurkepuasan konsumen di Apotek Astu Pedan Klaten pada khususnya dan apotek lain pada umumnya.