bluuebunny/crossref_metadata_2025 huggingface dataset:
Influence of nutrient feeding variations on AbrB accumulation, sporulation and cry1Ac expression during fed-batch cultures of Bacillus thuringiensis
Authors:   Centro de Investigación en Biotecnología Aplicada del Instituto Politécnico Nacional, Carretera Estatal Santa Inés Tecuexcomac-Tepetitla, km 1.5, Tepetitla de Lardizábal, Tlaxcala, C.P. 90700, Mexico, López y López Víctor Eric , Martínez Tolibia Shirlley Elizabeth , Díaz Pacheco Adrián , Téllez Girón Jabel Dinorín , Sierra Martínez Pável ,   Unidad Profesional Interdisciplinaria de Ingeniería Campus Tlaxcala del Instituto Politécnico Nacional, Guillermo Valle 11, Col. Tlaxcala Centro, Tlaxcala, Tlaxcala, C.P. 90000, Mexico,   ALTECSA, Cd. Industrial Xicoténcatl II, Av. 15 de agosto lote 3 y 4, Huamantla, Tlaxcala, C.P. 90500, Mexico,   Universidad Autónoma de Guerrero. Av. Lázaro Cárdenas s/n, La Haciendita, Ciudad Universitaria Sur; Chilpancingo, Guerrero, C.P. 39087, Mexico,   Unidad Profesional Interdisciplinaria de Ingeniería Campus Guanajuato del Instituto Politécnico Nacional, Av. Mineral de Valenciana 200-Interior, Col. Fraccionamiento Industrial Puerto, Silao, Guanajuato, C.P. 36275, Mexico
Published: September 2023

The biological control agent Bacillus thuringiensis (Bt) coordinates metabolic and gene regulation functions to enter to the differentiation process for the synthesis of spores and Cry toxin proteins. The master regulator for sporulation initiation is Spo0A, while AbrB regulator coordinate cellular functions during vegetative and transition growth. To understand how differentiation is modified during fed-batch cultures (FBC) of Bt under variable nutrient conditions, we conducted fermentations with two different nutrient concentration and feeding times using an industrial medium. Since sporulation efficiency has been lower in FBCs than in batch cultures, AbrB was monitored by Western blot during these cultures. Kinetic parameters were used to stablish timing of cell differentiation process, and fermentations were monitored on-line using impedance spectroscopy. AbrB was accumulated during the entire fed-batch culture, when a medium with the highest concentration of carbon and nitrogen sources (FBC1) were fed. Under these conditions, sporulation efficiency and cry1Ac expression were negatively affected, compared to the wild-type strain. Conversely, when the feeding concentration was only half of FBC1, AbrB accumulates in minor proportion, and sporulation efficiency and cry1Ac expression increased (FBC2). These results suggest that variable nutrient conditions can cause an imbalance in the accumulation of transition state regulators such as AbrB during FBCs, which can be detrimental to produce spores and Cry proteins, that are the main Bt products for biological control of agricultural pests.
Perancangan User Interface Dan User Experience Company Profile S-Cube Center Universitas Mataram
Authors: Al Husaini Azzam , Dwiyansaputra Ramaditia , Arimbawa I Wayan Agus
Published: September 2023

Dalam era digital saat ini, teknologi informasi dan internet telah menjadi elemen penting dalam kehidupan sehari-hari.Organisasi, termasuk lembaga pendidikan, mengakui nilai strategis teknologi ini dalam meningkatkan efisiensi proseskerja mereka. Dalam konteks ini, website telah menjadi sarana penting untuk mempresentasikan identitas dan informasiorganisasi, termasuk perguruan tinggi. Universitas Mataram, sebuah institusi terkemuka di Indonesia, mengakuipentingnya memiliki platform daring yang efisien untuk berkomunikasi dengan berbagai pihak, termasuk calonmahasiswa, dosen, masyarakat, dan industry. S-Cube Center, sebagai pusat fokus pengembangan teknologi dan layananinformasi di Universitas Mataram, memiliki peran sentral dalam mencapai tujuan akademik dan inovasi. Oleh karenaitu, keberadaan website profil perusahaan (company profile) bagi S-Cube Center menjadi krusial untuk memamerkanprestasi, program, dan proyek yang telah dijalankan. Pembuatan website company profile ini melibatkan perancanganantarmuka pengguna (UI) dan pengalaman pengguna (UX) yang efektif. UI meliputi aspek visual produk digital, sepertitata letak, warna, tipografi, dan elemen grafis lainnya yang berkontribusi pada estetika keseluruhan. Di sisi lain, UXberkaitan dengan pengalaman keseluruhan pengguna saat berinteraksi dengan produk digital, mencakup kemudahanpenggunaan, navigasi intuitif, responsivitas, dan pemenuhan kebutuhan pengguna.
Validity of problem-based learning tools with the steam approach to improve student learning outcomes on thermodynamics material
Authors: Ali Sarmila B. , Mursalin Mursalin , Buhungo Trisnawaty Junus
Published: September 2023

The purpose of this research is to describe the level of validity of learning devices that use problem-based learning models with the STEAM approach to improve student learning outcomes in thermodynamics material. This research is a type of research and development (R&D). This research was conducted in class XI IPA I SMA Negeri 1 Limboto Barat, Kec. Limboto Barat, Kab. Gorontalo for the 2022/2023 academic year. This study uses the ADDIE development model: analysis, design, development, implementation, and evaluation. The results of this study indicate that learning tools that use the problem-based learning model with the STEAM approach are declared valid and suitable for use in the learning process. It can be seen from the validation results which show that the average validation of the developed learning tools obtains very valid criteria.
Description of students learning difficulties in the atomic structure
Authors: Adi Nesha Putri , Azra Fajriah
Published: September 2023

Atomic structure material is studied by high school students in class X in odd semesters. In this material, as much as 66.81% of class X students of SMAN 13 Padang have yet to achieve the minimum criteria set. It indicates that students have learning difficulties. Learning difficulties are failures in achieving learning goals characterized by low learning outcomes. This study aims to determine the percentage of learning difficulties experienced by students in atomic structure material and determine the factors that cause students' learning difficulties in terms of learning methods. This research is a type of descriptive research. The sample for this research was 36 students in class X E3 of SMAN 13 Padang in the 2022/2023 academic year. The research instrument was a diagnostic test with two-tier multiple-choice questionnaires and interviews. The data analysis used is descriptive, namely analyzing and providing an understanding of the data in the form of numbers so that an overview can be given in an orderly, concise, and clear manner. The results of this study stated that students of SMAN 13 Padang experienced learning difficulties in atomic structure material with a high category. The highest difficulty level is found in the fourth indicator (Determining electron configurations and quantum numbers), which is 81.25%. Learning difficulties experienced by students are caused by ineffective learning methods, such as not making a study schedule and not carrying it out, not reading and not taking notes, not repeating material, not concentrating on learning, and not doing assignments.
Development of Science Learning Video Media to Increase Elementary School Students' Interest in Learning
Authors: Repelita Tridays , Sadiah Tia Latifatu , Prihamdan Depi
Published: September 2023

This study aims to develop based learning video for students of interest learning in class IV SDN Karawang Kulon 1 Kab. Karawang. The main data from this study are (a) knowing the facilities owned by the school based on the results of interviews with the Principal, (b) the teaching media used by the teacher during learning based on interviews with classroom teachers, (c) the interest in learning that students have based on observations in the classroom when learning takes place. This research uses research and development (R&D) methods. The development model used is the ADDIE model (Analysis, Design, Development, Implementation, and Evaluation). These results showed that (a) the facilities owned by the school could be used properly, and (b) the developed media were feasible to use in class, this was seen from the results of 98% media expert validation and 96.2% material expert validation with very feasible categories (c) student learning interest increases when learning uses video learning media, this is seen from the results of the N-Gain Test of 0.7 in the high category.
Effect of Some Pre-Harvest Treatments on Grain Yield and Protein Content of Sorghur
Authors:   Department of BioChemistry, Tamil Nadu Agricultural University Coimbatore  641 003, M JAYAPRAGASAM , K PARVATHI ,   Department of Agricultural Processing Tamil Nadu Agricultural University Coimbatore  641 003, M.V ELVARAJ ,   Department of Agronomy, Tamil Nadu Agricultural University Coimbatore  641 003
Published: September 2023

Spraying of 15% or 20% solution of sodium chlorido, 3 hours berore nar- ast. reduced the moisture content of sorghum grain by abou 3 per cent whereas, usting carberyl or chalk powder at the above stage reduced he moisture by 1 to per cent only. The yield of grain and the protein content tre not affected by he chemical desiccants tried, Harvesting Co18 and Co21 sonum on 90th, 95th or 100th day after sowing did not bring about a significant cinge in grain yields or its protein content.
Effect of Lindane in Controlling the Sorghum Stem Borer, Chilo partellus (Swinhoe) and Their Persistence in Sorghum
Authors:   Department of Agricultural Entomology Tamil Nadu Agricultural University Coimbatore  641 003, T MANOHARAN , M BALASUBRAMANIAN ,   Department of Agricultural Entomology Tamil Nadu Agricultural University Coimbatore  641 003
Published: September 2023

In sorghum, whorl application of Lindane 6 G on 25th DAS recorded the least stem borer damage. Whort application of Lindane 6G 0.37 kg ai./ha on 25th day + 0 45 kg a/ha on 35th day (or) Lindane 6 G 0,45 ko ai/ha on 25th day + 0.45 kg al./ha on 35th day registered less leaf injury, dead hearts. percentage of tunnelling and higher yield. There was a continuous absorption of lindane by sorghum plant upto 15 days following the treatment. The presence of lindane residues in grains in thsee treatments clearly indicates that lindane gets translocated from the treated sorghum plants to grains, which ranged from 0,40 to 0.77 ppm in grain, from 0.05 to 1,04 ppm in straw and these residues were less than the tolerance limit of 3 ppm.
Variability, Correlation and Path Coefficients in Inbreds of Pearl Millet (Pennisetum typhoides)
Authors:   Director Taser, Silk Board Ranchi, P MUKHERJI , R.K AGRAWAL ,   Senior Scientist, Department Of Genetics and Plant Breeding, Banaras Hindu University Vanarasi, R.M SINGH ,   Head, Department Of Genetics and Plant Breeding, Banaras Hindu University Vanarasi
Published: September 2023

In fifty one inbreds of pearl millet. variability, heritability, genetic advance, corr la- tion and path-co-efficient were studied. Grain yield/plant, plant height and ear length showed high GCV and genetic advance as percentage of mean. Heritability (broad sense) ranged from 16,12% (effective tillers/plant) to 91.44% (ear girth). The correlation of grain yield with plant height, ear length, ear girth and test weight was significant and positive. Effective tillers/plant showed a negative non-significant total correlation with yield, while the direct effect was highly positive. Other important positive direct effecis were noticed for plant height and 1000 grain weight. Plant height contributed indirectly to the total correlation of most of the characters with yield.
Phenotypic Stability of Flowering and other Quantitative Characters in Forage Cowpea (Vigna Unguiculata (L.) Walp
Authors:   Forage Research Project, Gujarat Agricultural University Campus,Anand, V.S KANDALKAR , A.K SANGHI ,   Forage Research Project, Gujarat Agricultural University Campus,Anand
Published: September 2023

The varieties of loregn cowpes were evaluated for stability parameters with respect to tower initiation, main stem length, number of branches and loaf areas in eight environments, The varielles included in the study were: FOS 1, HFC 42-1. GFC 2, GFC 3, GFC 4, UPC 9020, EC 4216, C 152. C1 and 12-1-8 Presence of genotype x environment interaction was observed. The lineer component appeared to account for most of the interactions precant. Variety EC 4216 was most simble for flowering trait, C 152 for main stem length, GFC 4 for number of branches and 82-1-8 for leal area.
Effect of press mud Application on the yield and Nutrient uptake by bhendi in soils of Tamil Nadu
Authors:   Associate Professor, of Chemistry, Tamil Nadu Agricultural University, Coimbatore 641003, M INDIRA RAJA , D RAJA ,   Retired Register Tamil Nadu Agricultural University Coimbatore  641 003
Published: September 2023

A pot culture experiment was carried out on four solls representing black, red, lateritio and alluvial soils of Tamil Nadu amended with press mud at 0. 10 and 20 tons/ha and bhendi was grown as tost crop, The yield of bhandi fruits recorded a significant increaso with press mud application at both the levels (10 and 20 tons/ha) over control in all tho four soils, the comparative increase in ylold over control being the highest in red soil. Tho higher level of press and mud (20 tons/ha) tried did not prove superior to the lower level (10 tons/hal. The yield of dry matter and uptake of nutrients N, P, K and Ca also followed the same trend, recording a significant increase due to press mud treatments over control.
Effect of Selfing in M. on the Realization of Mutation Frequency in M1 and M2 Generations in Greengram.
Authors:   Dept of Plant Breeding and Genectics,Orissa Univ. of Agrl., and Technology. Bhubaneswar 751 003 ., B.N SAMOLO , R.C MISRA ,   Dept of Plant Breeding and Genectics,Orissa Univ. of Agrl., and Technology. Bhubaneswar 751 003 .
Published: September 2023

Three greengram cultures viz. TT9-E, DT 9-E and DT 12-E were treated with 0.25% EMS for one hour under reduced pressure, after different periods of pre-soakings. The mutation frequency was recorded in Me and My generations in selfed and unselfed progenies. The peak of mutation frequency occurred in the treatment after 12.30 hours. of pre-soaking in the M, generation. The selfed progenies had higher mutation frequ- encies than unsalfed progenies. The lower mutation frequencies in unselfed progenies Indicated definite occurrence of certain amount of outcrossing in the M, generation due to induction of M, pollen sterility. Even in a self pollinated crop like greengram upto 2.63% mutants could not get expression due to induction of pollen sterility and outcrossing.
Influence of Magnesium Application in Combination with Potassium and lime on the yield of ragi (Eleusine Coracana Gaertn.) In Acid soils
Authors:   Assitant Professor, Dept.of Soil Science and Agrl,Chemistry  University Tamil Nadu Agricultural University Coimbatore  641 003, K.K MATHAN , K CHIRANJIVI RAO ,   Sugarcane Breading Institute,Coimbatore 641 007,Tamil Nadu.
Published: September 2023

A pot culture study with sixteen treatments (combination of two levels of lime, two levels of KO and four levels of magnasium) was conducted with CO 7 ragi (Eleualhe Coracana Gaertn.) as the test crop. The results indicated that application of magnesium at the rate 50 kg Mg/ha was the optimum in increasing the yield. Ragi yield was increased by 15.14 per cent. However quadratic In both the soils liming depressed the yield Under high calcium content in the soil, lower availability of magnasium and phosphorus was observed. Potassium did not influence the ragi yield. Top/rost ratio indicated that root was affected more intensely by magnesium than the tops Soil variations in their response to application of magnesium, lime and potassium ware significant. Titukkal soil was better than Doddabetta soil.
Association Analysis in Linseed (Linum usitatissimum L.)
Authors:   Department of Agricultural Botany, S.D.J Post Graduate College, Chandeshwar Azamgah, U.P, R.P SINGH
Published: September 2023

Correlation and path coefficients were studied in F1 and F1 populations of twenty one crosses of linseed (Linum usitatissimum L). Seed yield per plant showed strong positive correlation with capsules per plant in F1 and seed weight in F1 and F. Tillers per plant and seeds per capsule also had moderate correlation with yield in both generations. Conversely, plant height in F1 and capsule diameter in F1 and F1 showed negative association with yield. However, more favourable and effective character association developed in F1 than F1 with yield. Path coefficient analysis revealed that capsules per plant and seed weight had the maximum direct positive effect on yield in F1 than F1 Although the direct effect of tillers por plant and seeds per capsule were low in F1 but their contribution through capsules per plant were considerable.
Genetic Variability in Cowpea, (Vigna Unguiculata, Walp.).
Authors:   National Pules Research Center, Vamban Colony- 622 303, Pudukottai, T RADHAKRISHNAN , S JEBARAJA ,   National Pules Research Center, Vamban Colony- 622 303, Pudukottai
Published: September 2023

The genetic parameters viz., genotypic and phenotypic variances, genetypic eoefti- cient of variation, hereitability, expected genetic advanee end genetic gain were assessed from 16 varieties of Cowpes. The varieties showed highly significant differences in mean values for all the characters studied. All the characters showed very high- heritability. High genotypic coefficient of variation was observed fer number of pods par plant. Number of pods and clusters per plant. recorded high genetic gain while days to maturity and plant height registered low genetic gain.
Varietal variation and seasonal influence on the pattern of accumulation of old and protein in the Developing cotton seed.
Authors:   Department of seed  technology Tamil Nadu agricultural University Coimbatore-3, C.P THIAGARAJAN , K.R RAMASWAMY ,   Department of seed  technology Tamil Nadu agricultural University Coimbatore-3
Published: September 2023

Accumulation of oil was observed from the 5th day after anthesis in all the six varieties studied in both winter and sumeer seasons. The oil content was maximum between 30 and 40 days in all the varieties in both the seasons. Among the varieties, in the matured seed, the percentage of oil ranged from 18.10 to 20.30 in winter and from 18.40 to 20.95 in summer. The rate of oll accumulation was more rapid in winter than in summer in all the varieties. The formation of protein was observed from the 10th day after anthesis in ell the variaties in both the seasons. The protein content was maximum between 40 and 55 days in different varieties in both the seasons. Among the varieties the protein content at maturity, ranged from 15.11 to 18.90 per cent in winter and from 14.48 to 19.76 per cent in summer. The extent of variation in protein content between varieties was comparatively narrow in winter then in summer.
The Content and Uptake of Magnesium by Ragi (Eleusine Coracana Gaertn.) as Influenced by Soil Type and Application of Magnesium, Potassium and Lime.
Authors:   Associate Professor, Dept.of Soil Science and Agrl,Chemistry  University Tamil Nadu Agricultural University Coimbatore  641 003, K.K MATHAN , K CHIRANJIVI RAO ,   Agriculrural Chemist, Sugarcane Breading Institute,Coimbatore 641 007,Tamil Nadu.
Published: September 2023

Magnesium content and uptake of root and shoot ware positively correlated with their corresponding root and shoot yield. At Mo, level liming increased Mg uptake by the crop while at other levels liming decreased Mg uptako Likewise it Ke level Mg increased the My uptake while at K, laval Mg application decreased Mg uptake. What may be called a one-way competition with the uptake of Mg (magnesium being reduced by an increase in nutrient K whereas D absorption was hardly affected by the presence of nutrient Mg) was also noticed in the prasent study.
Losses in rice yield due to kresek (wilt) phase af bacterial blight
Authors:   C.P.C.R.I Regional Station Karnataka, N SRINIVASAN
Published: September 2023

The effect of Kresek (wilt) phase of bacterial blight on yield and important yield contributing factors of ries was studied under natural conditions. The loss in yiold wes related to the severity of the Kresek. The vigour of the tillers in infected hilte wes reduced. Under severe Kresek phase, the disease increased the chaffy grains to the tune of 55.59 per cent; reduced the 1000 grain welight by 49.62 per cent; consequently s loss of grain yield per hill as high as 94.18 per cent was observed. The higher Kreek Intensity also leads to wilting of hills.
Seed Quality of Soybean Varieties in Sorghum Based Cropping Systems
Authors:   Department of Agronomy, Agricultural College and Research Institute,Coimbatore 641003, S JEYARAMAN , Y.B MORACHAN ,   Department of Agronomy, Agricultural College and Research Institute,Coimbatore 641003
Published: September 2023

Singh et al. (1974) tried phos- phorus level at 0, 15, 30 kg P₂Os and 0,30 and 60 kg N per ha, and found both the phosphorus levels increased the Lipseed oil content considerably over control while nitrogen showed no response. The objective of the present study was to investigate the seed quaility of soybean varieties in sorghum based cropping systems.
Magnesium as a Function of Pedogenic Factors
Authors:   Assitant Professor, Dept.of Soil Science and Agrl,Chemistry  University Tamil Nadu Agricultural University Coimbatore  641 003, K.K MATHAN , K CHIRANGIVI RAO ,   Agriculrural Chemist, Sugarcane Breading Institute,Coimbatore 641 007,Tamil Nadu.
Published: September 2023

Total magnesium obtained by summing up the four fractions of magnesium. namely, mineral magnesium, acid-soluble (reserve) magnesium, exchangeable magnesium and organic-complexed magnasium, was found to be as good as estimating total magnesium separately. The pattern of distribution of magnesium in the Nilgiris depended largely on rainfall which influenced indirectly through its manifested effect of pH. base saturation, exchangeable aluminium and total acidity which are interrelated among themselves. Wide variations may also be attributed to the parant materials which varied even within a small area. charnockite the parent rock of most Nilgiris soils which is known to vary considerably from acid to ultra basic conditions. Increase in clay content of the soil was found to increase total My as weil as magnesium fractions, Among other parameters, organic carbon, moisture. pH. total acidity, exchangeable H. E. C. and base saturation were also observed to influence the pattern of distribution.
Growth Analysis of Leaf Characters in Certain Inbreds and Hybrids of Tomato (Lycopersicon esculentum) Mill
Authors:   Faculty of Agricultural  University of Coimbatore, E PALANIAPPAN , C.R MUTHUKRISHNAN ,   Faculty of Agricultural  University of Coimbatore, I IRULAPPAN ,   Faculty of Agricultural  University of Coimbatore
Published: September 2023

In tomato (Lycopersicon esculentum Mill.), six parents and nine hybrids were evaluated through growth analysis. The number of leaves, leaf area index (LAI) and specific leaf weight showed a steady increase over the stages. On the other hand, a reduction was noticed from stage I to stage IV for specific leaf area and leaf area ratio. Most of the heterotic hybride, tended to have lower LAI. LAR, SLA and SLW than their respective parents.
Magnesium Fereilization in Acid Soils for Potato Crops
Authors:   Associate Professor, Dept.of Soil Science and Agrl,Chemistry  University Tamil Nadu Agricultural University Coimbatore  641 003, K.K MATHAN , K CHIRANJIVI RAO ,   Senior Agriculrural Chemist, Sugarcane Breading Institute,Coimbatore 641 007,Tamil Nadu.
Published: September 2023

Magenisium fertilization studies were conducted for two sonsons in magnselum deficient and potassium high soil of Titukkal (near Ootecamund, in the Nilgirls District with Sixteen treatments (combination cf two levels of/lime, two levels of K, O and four levels of magnesium in a spilt-plot design with lime and potassium in the main plots and with potato (Solanum tuberosum L. Var, Kufri jyothi) as the test crop. The results indicated that applicantion of magnosium at the rate of 50 kg Mg/ha was the optimum in incresing the yield of potato crops under Nilgiris conditions. However the relationship between Manesium application and yield was quadratic. Under high calcium content in the soil. lower avilability of magnesium and phosperous and was observed. Further lower uptake of magnesium, phosphorus and potassium under high calsium content was observed Thesa were some of the rossens depressed Mg uptake in addition to widening of Ca: Mg ratio. In the presouce of magnesium the tuber yield variations due to potassium "application was non-significant indicatint that.magonisium could, to certain extent, alleviate the adverse effects of K fertilization. Since an incrase in yiaid was obtained with magnesium application the soil available magnesium was inferred to be limiting pota o yield.
Development and validation of mathematics persistence scale for secondary school students
Authors: Ogbu Sunday , Ugwu Felicia Chinyere
Published: September 2023

The study focused on development and validation of the mathematics persistence scale (MPS) for measuring secondary school students’ persistence in learning mathematics. The study employed a descriptive survey design. Three research questions guided the study. The population of the study comprised 13,516 students distributed in 59 public secondary schools in Nsukka Education Zone, Enugu State, Nigeria. A multi-stage sampling procedure was used in selecting a sample size of 1,378 secondary school mathematics students used for the study. In the development of MPS, 85 items were first constructed and subjected to face validity. After face validation, eight items were deleted in line with the recommendations and suggestions of the validators. The remaining 77 items were further subjected to exploratory factor analysis using statistical package for the social science version 25. 28 factorial pure items, that loaded into four salient factors (persistence in classroom mathematics exercise, persistence in mathematics take home assignments, persistence in a group mathematics tasks, and persistence in mathematics examination) emerged from the analysis. Confirmatory factor analysis of four factors using lavaan and semPlot packages indicated a harmony between four factor model and the data. The internal consistency coefficients of four factors ranges from 0.78 to 0.92.
OPTIMIZATION OF RICE INVENTORY USING FUZZY INVENTORY MODEL AND LAGRANGE INTERPOLATION METHOD
Authors: Susanti Eka , Puspita Fitri Maya , Yuliza Evi , Supadi Siti Suzlin , Dwipurwani Oki , Dewi Novi Rustiana , Ramadhan Ahmad Farhan , Rindarto Ahmad
Published: September 2023

Interpolation is a method to determine the value that is between two values and is known from the data. In some cases, the data obtained is incomplete due to limitations in data collection. Interpolation techniques can be used to obtain approximate data. In this study, the Lagrange interpolation method of degree 2 and degree 3 is used to interpolate the data on rice demand. A trapezoidal fuzzy number expresses the demand data obtained from the interpolation.  The other parameters are obtained from company data related to rice supplies and are expressed as trapezoidal fuzzy numbers. The interpolation accuracy rate is calculated using Mean Error Percentage (MAPE). The second-degree interpolation method produces a MAPE value of 30.76 percent, while the third-degree interpolation has a MAPE of 32.92 percent. The quantity of order  respectively  202677 kg, 384610 kg, 1012357 kg, 1447963 kg, and a Total inventory cost of Rp. 129231797951.
ANALYSIS OF SOCIO-ECONOMIC IMPACTS OF THE COVID-19 PANDEMIC USING FACTOR ANALYSIS
Authors: Susilawati Made , Sumarjaya I Wayan , Srinadi IGAM , Nilakusmawati DPE , Suciptawati NLP
Published: September 2023

The purpose of this study is to identify the factors that influence the socio-economic impact of the Covid-19 pandemic. This study uses explanatory factor analysis that is an analysis that forms new random factors in which the later formed factors or constructs can be interpreted. The case study was conducted in Sawan Village, Sawan District, Buleleng Bali, with six variables explaining the economic impact, and 16 variables explaining the social impact. The results of the study show that there are three factors that explain the economic impact due to Covid-19. They are the income factor, the purchase of quotas and gadgets, and the expenditure factor with the total variance described being 82,178 percent. Meanwhile, the social impact due to the Covid-19 pandemic is explained by three factors, namely the fear of interacting in public places, the fear factor of doing activities outside the home, and the fear of using public facilities with a total variance that can be explained is 73,609 percent.
CATEGORICAL ANALYSIS TO PERCEPTIONS OF GOVERNMENT POLICY IN ELECTRICITY FUEL MANAGEMENT AS ALTERNATIVE TO SUBSTITUTE OIL FUEL USING CHI-SQUARE TEST
Authors: Chamidah Nur , Siregar Naufal Ramadhan Al Akhwal , Al Farizi Muhammad Fikry , Pratama Bagas Shata , Faiza Atikah , Fibryan Muhammad Hilmi
Published: September 2023

The scarcity and increase in world oil prices is a tough dilemma that must be responded to by the Indonesian government. In order to prevent fuel consumption from swelling, the government plans to reduce fuel subsidies. The plan certainly has many positive impacts, including savings on government finances so that they can be diverted to fund other programs that are more effective and on target. These savings are also useful in reducing the budget deficit, controlling the consumption of fuel oil, and saving non-renewable natural resources. It is appropriate for the state to think hard about switching energy to New and Renewable Energy (EBT) so that people's dependence on fossil energy consumption can be shifted. Therefore, this study aims to determine the current public perception of government policies in the management of fossil fuel energy so that they can be considered by the government in making comprehensive policy decisions. The data used in this study is in the form of primary data obtained from respondents with a population of Indonesian people and collected online through a questionnaire. The data analysis method in this study used the independence test with the chi-square test on categorical data. The results of this study indicate that there is a relationship between the level of public perception of the basic policy of managing electric fuel with the last level of education, type of work, and the area of the population.
COMPARISON OF WEIGHTED MARKOV CHAIN AND FUZZY TIME SERIES-MARKOV CHAIN METHODS IN AIR TEMPERATURE PREDICTION IN BANDA ACEH CITY
Authors: Rusdiana Siti , Febriana Diana , Maulidi Ikhsan , Apriliani Vina
Published: September 2023

Air temperature prediction is needed for various needs such as helping plan daily activities, agricultural planning, and disaster prevention. In this research, Weighted Markov Chain (WMC) method and Fuzzy Time Series-Markov Chain (FTS-MC) method are applied to predict the weekly air temperature in Banda Aceh city. The purpose of this study is to find out how the results of the application and comparison of the accuracy of the WMC method and the FTS-MC method on weekly air temperature prediction in Banda Aceh City. The prediction result of air temperature in Banda Aceh city using the WMC method for the next three weeks obtained an air temperature of 26,5℃. The prediction results of air temperature in Banda Aceh city using the FTS-MC method for the next three weeks obtained predicted values of 26,66℃ for the 105th week, 26,79℃ for the 106th week, and 26,83℃ for the 107th week. The MAPE accuracy level of the WMC method is 1,5% and the FTS-MC method is 1,7%. This shows that the MAPE of the WMC method is smaller than the FTS-MC method so it can be concluded that air temperature prediction using the WMC method is better than the FTS-MC method.
ANNIHILATING IDEAL AND EXACT ANNIHILATING IDEAL GRAPH OF RING Z_n
Authors: Susanto Anindito Wisnu , Putra Dewa Putu Wiadnyana
Published: September 2023

The existence of annihilator in the ring motivates the emergence of studies on Annihilating Ideal and Exact Annihilating Ideal Graphs. The purpose of this research is to describe the characteristics of an (exact) annihilating ideal of ring . The method used in this research is literature study. The results of this study discuss finiteness, adjacency, connectedness, vertices, and types of  and . Furthermore, the number of vertices of an Annihilating Ideal Graph is determined by the factorization of . The adjacency of two vertices is determined by the divisibleness of . The results also show that  is a subgraph of .  can be represented as a union of several complete graphs.
SPATIAL MODELING IN DATA PANELS WITH LEAST SQUARE DUMMY VARIABLE TO IDENTIFY FACTORS AFFECTING UNEMPLOYMENT IN INDONESIA
Authors: Amil Sri Indriani , Thamrin Sri Astuti , Siswanto Siswanto
Published: September 2023

Unemployment is a serious issue that must be addressed. Unemployment has a negative impact on the national economy, making economic growth unpredictable. In 2015, Indonesia was ranked third with the highest unemployment rate in ASEAN. It is estimated that the unemployment rate in each province of Indonesia is influenced by the surrounding provinces. Therefore, spatial modelling on panel data with Least Square Dummy Variable (LSDV) is needed to identify factors that influence unemployment in Indonesia. The data used is Open Unemployment Rate (OUR) data and influencing factors are population, average length of schooling, Gross Regional Domestic Product (GRDP) rate, and Human Development Index (HDI) in 34 provinces of Indonesia from 2015 to 2020. Spatial model on panel data with appropriate LSDV for OUR data are Spatial Autoregressive Model (SAR) and Spatial Error Model (SEM). The SAR model with fixed effects has an value of 90.289%, which is greater than the SEM model with fixed effects (82.708%) and LSDV model (87.864%). The root mean square error value for SAR model with fixed effects is 0.58951, less than SEM model with fixed effects (0.78669) and LSDV model (0.65903). The best model is the SAR model with fixed effects. Based on this model, the factors that influence OUR in Indonesia from 2015-2020 are obtained, namely the rate of GRDP and HDI.
INCORPORATING COMPLEX SURVEY DESIGN FOR ANALYSING THE DETERMINANT OF WOMEN IN REPRODUCTIVE AGE PARTICIPATION IN FAMILY PLANNING PROGRAM IN INDONESIA
Authors: Astuti Erni Tri , Rahani Rini , Pramana Setia
Published: September 2023

Data generated from complex survey are often treated as un-weighted simple random samples by analyst. This is unfortunate because everyone has different probability to be selected as sample in each stage of the complex survey design. Fail taking it into account will have serious impact in parameter and variance estimation. This paper aims to examining relationship between participation in family planning program and socio demographic status of women in reproductive age in Indonesia used data from latest Indonesian’s Demographic and Health Survey (IDHS). IDHS employs a multi stage stratified sampling design, thus there are a number of weights included in public-use IDHS datasets to account for this complex sample design. We found that the complex design features of the IHDS increased the variance estimates of the estimated parameters in the logistic regression models by about 1.325 – 1.88 times, compared to a simple random sampling. Therefore, using variance estimated from un-weighted simple random samples would lead to wrong conclusion of the significance parameter suggested by the model. The result also found that all of socio demographics variables used as predictors are significant. Thus, women with moderate education, unemployment, exposed by media, living in rural community and wealthy, have spouse that have moderate education and have a job tend to participate in family planning program.
COMPARISON OF RANDOM FOREST AND NAÏVE BAYES CLASSIFIER METHODS IN SENTIMENT ANALYSIS ON CLIMATE CHANGE ISSUE
Authors: Fauzi Fatkhurokhman , Setiayani Wiwik , Utami Tiani Wahyu , Yulianto Eko , Harmoko Iis Widya
Published: September 2023

The last decade was recorded as a decade with a bad record on the issue of disasters in the world due to climate change. Measuring public opinion is one of the steps to mitigate the impact of climate change. Twitter is a popular social media for channeling opinions. Twitter provides a great source of data for understanding public opinion and the perceived risk of an issue. In recent decades, when discussing climate change, there are those who agree and those who oppose it. Sentiment analysis is a branch of learning in the realm of text mining that is used as a solution to see opinions on a problem, one of which is climate change. In this study, we will try to analyze opinions on climate change issues using the Random Forest and Naïve Bayes classifier methods. Data were obtained from Twitter for the period January 2022-June 2022. The training data used in this research is 80%:20%. There are slightly more positive statements than negative ones. The results obtained with the Naïve Bayes classifier method are an accuracy of 76.25%, an F-1 score of 78%, and a recall of 80%. While the results of the random forest method are 70.6% accuracy, 69% F-1 score, and 63% recall. The Nive Bayes method is better than the Random Forest method for classifying climate change opinions with an accuracy of 76.25%.
ON PROPERTIES OF PRIME IDEAL GRAPHS OF COMMUTATIVE RINGS
Authors: Kurnia Rian , Abrar Ahmad Muchlas , Syarifudin Abdul Gazir , Wijaya Verrel Rievaldo , Supu Nur Ain , Suwastika Erma
Published: September 2023

The prime ideal graph of  in a finite commutative ring  with unity, denoted by , is a graph with elements of  as its vertices and two elements in  are adjacent if their product is in . In this paper, we explore some interesting properties of . We determined some properties of  such as radius, diameter, degree of vertex, girth, clique number, chromatic number, independence number, and domination number. In addition to these properties, we study dimensions of prime ideal graphs, including metric dimension, local metric dimension, and partition dimension; furthermore, we examined topological indices such as atom bond connectivity index, Balaban index, Szeged index, and edge-Szeged index.
THE CONSTRUCTION OF SOFT SETS FROM FUZZY SUBSETS
Authors: Hijriati Na'imah , Yulianti Irma Sari , Susanti Dewi Sri , Anggraini Dewi
Published: September 2023

Molodtsov introduced the concept of soft sets formed from fuzzy subsets in 1999. The soft set formed from a fuzzy subset is a particular form of a soft set on its parameter set. On a soft set formed from a fuzzy subset, the parameter used is the image of a fuzzy subset which is then mapped to the collection of all subsets of a universal set. This research explains the construction of soft sets formed from fuzzy subsets. We provide the sufficient condition that a soft set formed from a fuzzy subset is a subset of another soft set. Also, give some properties of the soft sets formed from a fuzzy subset related to complement and operations concepts in soft sets
A MAGDM ALGORITHM FOR DECISION-MAKING PROBLEMS ON FUZZY SOFT SETS USING A COEFFICIENT CORRELATION AND AN ENTROPY MEASURE FOR DETERMINING THE WEIGHT OF PARAMETERS
Authors: Khairunnisa Latifa , Nazra Admi , HG Izzati Rahmi
Published: September 2023

In statistics, the correlation coefficient concept aims to show how strong the linear relationship between two variables is. Sometimes the data collected relates to everyday life problems whose value is uncertain. Therefore, the concept of correlation coefficient must be developed on the fuzzy sets and the fuzzy soft sets environment. In this study, a decision-making algorithm was designed on fuzzy soft sets using the concept of the correlation coefficient. The method used is MAGDM, where the parameter weights are determined using entropy measures. Using this method, the algorithm of our decision-making problem is more realistic and general. The final section gives an example of a decision-making problem and a numerical illustration using the designed algorithm.
ON RAINBOW ANTIMAGIC COLORING OF SNAIL GRAPH(S_n ), COCONUT ROOT GRAPH (Cr_(n,m) ), FAN STALK GRAPH (Kt_n ) AND THE LOTUS GRAPH(Lo_n )
Authors: Adawiyah R , Makhfudloh I I , Dafik Dafik , Prihandini RM , Prihandoko AC
Published: September 2023

Rainbow antimagic coloring is a combination of antimagic labeling and rainbow coloring. Antimagic labeling is labeling of each vertex of the graph  with a different label, so that each the sum of the vertices in the graph has a different weight. Rainbow coloring is part of the rainbow-connected edge coloring, where each graph  has a rainbow path. A rainbow path in a graph is formed if two vertices on the graph  do not have the same color. If the given color on each edge is different, for example in the function it is colored  with a weight , it is called rainbow antimagic coloring. Rainbow antimagic coloring has a condition that every two vertices on a graph cannot have the same rainbow path. The minimum number of colors from rainbow antimagic coloring is called the rainbow antimagic connection number, denoted by  In this study, we analyze the rainbow antimagic  connection number of snail graph , coconut root graph , fan stalk graph  and lotus graph .
A COMPARISON OF ARTIFICIAL NEURAL NETWORK AND NAIVE BAYES CLASSIFICATION USING UNBALANCED DATA HANDLING
Authors: Lestari Nila , Indahwati Indahwati , Erfiani Erfiani , Julianti Elisa D
Published: September 2023

Classification is a supervised learning method that predicts the class of objects whose labels are unknown. Classification in machine learning will produce good performance if it has a balanced data class on the response variable. Therefore, unbalanced classification is a problem that must be taken seriously. This study will handle unbalanced data using the Synthetic Minority Over-Sampling Technique (SMOTE). The classification methods that are quite popular are the Naïve Bayes Classifier (NB) and the Resilient Backpropagation Artificial Neural Network (Rprop-ANN). The data used comes from the Health Nutrition Research and Development Agency (Balitbangkes) which consists of 2499 observations. This study examines the use of NB and ANN using the SMOTE method to classify the incidence of anemia in young women in Indonesia. Modeling is done on 80% of training data and predictions on 20% of test data. The analysis shows that SMOTE can perform better than not handling unbalanced data. Based on the results of the study, the best method for predicting the incidence of anemia is the Naïve Bayes method, with the sensitivity value of 82%.
DETERMINATION OF BANK INDONESIA SCHOLARSHIP RECIPIENTS USING NAÏVE BAYES CLASSIFIER
Authors: Febri Fera Malianis , Sari Devni Prima
Published: September 2023

A scholarship is a grant given to students as financial aid for education. One of the most sought-after scholarships is the scholarship from Bank Indonesia. Currently, the selection process for Bank Indonesia scholarship recipients still involves verifying the completeness of the administrative documents of the prospective recipients. Manual administrative verification requires a long time for data processing and re-verification. Therefore, there is a need for a data classification system to assist in the decision-making process for Bank Indonesia scholarship recipients. This study aims to implement the naïve Bayes classifier method to classify Bank Indonesia scholarships accurately. The variables used include gender, semester, parental income, grade point average (GPA), achievement, organizational activity, and the number of dependents. This research found that the naïve Bayes classifier method for classifying Bank Indonesia scholarship recipients can be done accurately with an accuracy rate of 86,84%.
A COMPARISON OF LOGISTIC REGRESSION AND GEOGRAPHICALLY WEIGHTED LOGISTIC REGRESSION (GWLR) ON COVID-19 DATA IN WEST SUMATRA
Authors: Haq Irvanal , Aidi Muhammad Nur , Kurnia Anang , Efriwati Efriwati
Published: September 2023

An understanding of factors that affect the recovery time from a disease is important for the community, medical staff, and also the government. This research analyzed factors that affect the recovery time of Covid-19 sufferers in West Sumatra. In addition, the consumption of a herbal made from Sungkai leaves, which is believed by some people in West Sumatra to accelerate the healing from Covid-19, was also included in the analysis. The recovery time here was categorized into two classes (binary): 1 for within 2 weeks, and 0 for more than 2 weeks. The methods used were logistic regression and geographically weighted logistic regression (GWLR). GWLR provides estimates of parameters for each location. The data used in this study is Covid-19 data of 2021 taken from the Regional Research and Development Agency (Litbangda) of West Sumatra with a total of 764 observations collected from 19 regencies/cities in West Sumatra. The results showed that there was no difference between the logistic regression model and the GWLR models based on the values of AIC and the ratio of deviance and degrees of freedom (df). The addition of spatial factors through GWLR models did not provide additional information regarding the recovery of Covid-19 sufferers within 2 weeks or more than 2 weeks. The logistic regression model gives the result that, at significance level α = 10%, residence, vaccination status, and symptoms significantly affect the recovery time within 2 weeks or more for Covid-19 sufferers, while other variables, namely sex, age, Sungkai leaves consumption status, and ginger consumption status have no significant effects.
POISSON REGRESSION MODELS TO ANALYZE FACTORS THAT INFLUENCE THE NUMBER OF TUBERCULOSIS CASES IN JAVA
Authors: Budiawan Zalfa Alifah , Widyaningsih Yekti
Published: September 2023

Tuberculosis is an infectious disease and one of the world's top 10 highest causes of mortality in Indonesia. Based on this fact, it is necessary to study what factors affect number of tuberculosis cases. The number of tuberculosis cases as dependent variable is a count data that generally analyzed using Poisson regression. However, equidispersion assumption must be met, so Generalized Poisson Regression and Negative Binomial Regression are applied if the assumption is not met. Spatial aspects can be considered so Geographically Weighted Generalized Poisson Regression and Geographically Weighted Negative Binomial Regression were also conducted. Four models were built to evaluate relationship between number of tuberculosis cases and factors affecting it in Java in 2020. The explanatory variables are population density, percentage of children receiving BCG immunization, percentage of poor people, percentage of eligible drinking water facilities, percentage of family cards with access to proper sanitation, percentage of public places meet health requirements, and percentage of food management places meet hygienic requirements. This study shows that the best model for modeling the data is GWNBR with 2 groups of significant explanatory variables. Seven explanatory variables are statistically significant in 88 districts and six explanatory variables statistically significant in 12 districts.