USU-IR Repositori Institusi Universitas Sumatera Utara
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The Impact of Income Diversification and Land Resource Control on the Welfare of Coffe Farmers in Simalungun Regency
No full textThe purpose of this research is to analyze the effect of income diversification and land control on the welfare of coffee farmers in Simalungun. This research employs a quantitative approach with the Structural Equation Modeling-Partial Least Squares (SEM-PLS) method, using data collected through a questionnaire from 100 coffee farmers in Simalungun Regency during December 2024 to February 2025.
The results of the research show that all variables affecting welfare have a positive relationship; however, there are some variables that show insignificant results. Income diversification and land control demonstrate positive and significant results for the income of coffee farmers in Simalungun, while land control also shows a positive and significant effect on the welfare of coffee farmers in Simalungun. Additionally, the results of the Indirect Effect, namely diversification on welfare through income and land control on welfare through income show similarly positive but not significant results.
The implementation of income diversification and land control among coffee plantation farmers can be an important step in improving the welfare of farmers in Simalungun. The implications of this research is the importance of policies that support coffee farmers in strengthening land control and increasing access to productive resources. In addition, more effective and sustainable income diversification strategies are needed to help coffee farmers enhance their welfare.167 PagesTesis Magiste
Cultural Values in The Folk Story of Lake Laut Tador, Batu Bara District, Literary: Anthropologi Study
No full textCultural values are principles or views of life that are upheld by a society and are reflected in various aspects of life, including in literary works. Literary works, especially the folklore of Lake Laut Tador, not only function as entertainment, but also as a medium for passing on cultural values. The purpose of this study was to describe the cultural values contained in the folklore of Lake Laut Tador and to analyze the perceptions of the Laut Tador Village community towards the story. This study used a qualitative approach with a descriptive method. Data collection techniques were obtained through interview techniques with four informants from different backgrounds. The results of the study showed that the folklore of Lake Laut Tador contains cultural values that include: (1) the relationship between humans and God, namely piety and surrender; (2) the relationship between humans and nature, namely the unification of nature and the preservation of nature; (3) the relationship between humans and other humans, namely compassion, deliberation, mutual cooperation, helping each other, and togetherness; (4) the relationship between humans and themselves, namely hard work, honesty, intelligence, sincerity, and fortitude. Furthermore, the public perception of the folklore of Lake Laut Tador which comes from the questionnaire answers of the people of Laut Tador Village. From the results of the study using Likert scale calculations, 88.65% of the people of Laut Tador Village filled out the questionnaire that the public perception of the folklore of Lake Laut Tador.96 PagesSkripsi Sarjan
Sensitivity Analysis on Integer Linear Programming Using Branch and Bound Method to Optimize the Quantity Of School Uniform Production at UD Hesty
No full textUD Hesty is a garment company that produces school uniforms and faces challenges in determining the optimal production quantity. These challenges are due to limited raw materials. Inaccurate decisions can lead to inefficient resource use and reduced profits. This study aims to optimize the production quantity of school uniforms at UD Hesty using the Integer Linear Programming approach and the Branch and Bound method. The objective function is to maximize profit while considering resource constraints. The modeling is performed using POM-QM for Windows software to efficiently obtain the optimal solution. The results show that this method can increase the production quantity from 320 units to 335 units and raise the profit from Rp 8,135,000.00 to Rp 8,598,000.00. Sensitivity analysis on the coefficients of the objective function and the right-hand side of the constraints also provides valuable information for strategic production decisionmaking62 PagesSkripsi Sarjan
Synthesis Of Durian Peel Carboxymethyl Cellulose Composite Hydrogel With The Addition Of Graphene Oxide And Tio2 As Methylen Blue Adsorbent
No full textThe synthesis of a composite hydrogel based on carboxymethyl cellulose derived from durian rind, combined with PVA-ALG polymer, and supplemented with fillers in the form of graphene oxide and TiO₂ at varying concentrations of 0%, 2%, 4%, 6%, and 8%, has been successfully carried out through a physical cross-linking process involving freeze–thaw cycles and ionic gelation. The hydrogels produced in this study were subsequently characterized to examine their surface morphology and elemental composition, functional group analysis, thermal stability, water absorption capacity, and methylene blue adsorption performance. The results indicate that the incorporation of GO and TiO₂ fillers into the hydrogel tends to refine and reduce the pore size on the hydrogel surface, with TiO₂ visibly present in SEM images and EDX spectra. Furthermore, the addition of GO and TiO₂ fillers enhances the absorption bands in the IR spectra. Hydrogel samples containing GO and TiO₂ also demonstrated improved thermal stability, as evidenced by the insignificant weight loss observed in the TGA thermograms. This study found that the addition of GO and TiO₂ fillers tends to decrease the DSA of the hydrogel, with the H0 sample exhibiting the highest DSA value of 170.5%. The H8 hydrogel sample demonstrated high adsorption performance, with an adsorption capacity of 33.25 mg/g and an adsorption efficiency of 65.6%.87 pagesTesis Magiste
Analysis of Social Media Marketing Strategy, Customer Satisfaction, and Customer Recommendation in Building Millennial Loyalty (A Study on BSI Gold Installment Product)
No full textThe development of the Islamic banking industry in Indonesia, particularly in the context of investment products, has become increasingly interesting to study. In today's competitive business environment, Bank Syariah Indonesia (BSI) needs to understand market dynamics and develop appropriate marketing strategies to attract millennial customers, who are a market segment highly connected to technology and social media.
This research aims to analyze the social media marketing strategies implemented by BSI for the gold installment product, as well as to analyze the role of customer satisfaction and customer recommendations in building loyalty among millennial customers.
The research method used is qualitative with a descriptive approach. The data sources consist of primary and secondary data, collected through observations, interviews, and documentation. The informant selection technique employs snowball sampling, which allows the researcher to gradually expand the number of informants. Data analysis is conducted using the Miles and Huberman model, which includes data collection, data reduction, data presentation, and conclusion drawing.
The results of the study show that BSI has successfully implemented an effective social media marketing strategy for Cicil Emas products. By utilizing platforms such as Instagram and WhatsApp, BSI is able to create a positive experience for millennial customers. In addition, high customer satisfaction contributes to customer loyalty, where recommendations from satisfied customers become a powerful marketing tool. However, there is still room for improvement regarding information transparency and more active engagement on social media.151 PagesSkripsi Sarjan
Fostering Prisoners and Recidivists Commiting Narcotic Offenses in Class II B Penitentiary Langsa (A Case Study at the Class II B Penitentiary Langsa)
No full textPrisons are often seen as institutions that are not optimal in providing services, of
course, this should not happen again because it will decline the Correctional Institution
as an institution that plays a role in fostering inmates and making them reborn into
good and trustworthy human beings. The absence of a special program for narcotics
inmates and narcotics rehabilitators will be seen whether this is in line with the
principles stipulated in Law Number 22 of 2022. Because in fact, prisons as a place to
coach inmates must make coaching efforts that can improve inmates from the problems
they experience, as mentioned at the beginning that Sahardjo explained that in essence
prisons are places to foster inmates. The research methods used in this study are
normative-empirical, the nature of analytical descriptive research, the data used are
secondary data and primary data, and use qualitative analysis. The results of this study
state that The implementation of coaching activities for recidivist perpetrators in Class
IIB Langsa Correctional Institution has not been carried out optimally, this is because
special efforts have not been made for narcotics inmates. The effectiveness of
correctional institution coaching activities to prevent recidivism inmates in Class IIB
Langsa Correctional Institution in accordance with Law Number 22 of 2022 is not
optimal because special coaching efforts are not made for narcotics inmates. The
obstacle of the Langsa City Class II B Correctional Institution in providing guidance
to inmates who commit recidivism lies in insufficient facilities and infrastructure to
carry out coaching optimally, Without or support adequate facilities or facilities, it is
not easy for law enforcement to run well.164 PagesTesis Magiste
Comparative Study of the Use of Honeycomb Beam Rafter against Tapered Beam as a Benchmark Packaging Building Project - KEK Sei Mangkei
No full textLong-span buildings in the industrial sector, such as factories, warehouses, and aircraft hangars, are generally built using a gable frame structure, as is the case in the packaging building project in this study. This is because the use of a gable frame has several advantages over other structures, namely, it is more efficient in terms of cost and manufacturing process, and provides good rigidity and strength to the building. The cross-sectional modeling of gable frame varies greatly, ranging from I-beam, angle beam, channel beam, composite steel beam, T-beam and H-
beam cross-sections. This research focuses on the comparison of material weight and performance between the modified I-beam cross-section to a tapered beam cross-section as a benchmark based on data obtained in the field with honeycomb beam with dimensions HC600x200x8x13. The results of this study show that the design using steel with a honeycomb cross section is more efficient in terms of material weight compared to the tapered section for the packaging building, achieving an efficiency of 8.49%. While in terms of performance, the honeycomb beam section has greater stiffness than the tapered beam, because the inertia of the honeycomb beam profile is greater, it can reduce the occurrence of excessive deflection. The lateral torsional buckling ratio of both cross-sections is safe, but if additional load is applied, the honeycomb beam cross-section will reach its maximum capacity limit faster than the tapered beam.178 PagesSkripsi Sarjan
Effect of Addition of Carrageenan and Sappan Wood (Caesalpinia sappan L.) on the Quality of Arabica Coffe Pulp Jelly Drink
No full textThis research was aimed to determine the effect of the addition of carrageenan and sappan wood extract and the interaction of both on the quality of jelly drink coffee pulp arabica. This research used the factorial completely randomized design method with two factors, namely the addition of carrageenan (K): (0,2%; 0,3%; 0,4%; and 0,5%) and sappan wood extract (S): (0%; 0,5%; 1%; and 1,5%). Parameters analyzed were antioxidant activity (μg/mL), crude fiber (%), total acid (%), color index (°Hue), total soluble solids (°Brix), pH, syneresis (%), viscosity (cP), suction power, hedonic value of color, texture, taste, aroma and general acceptance.
The results showed that the addition of carrageenan gave a highly significant effect (P<0,01) on the parameters of antioxidant activity, crude fiber, total acid, total soluble solids, pH, syneresis, viscosity, suction power, hedonic texture, hedonic taste and general acceptance. Meanwhile, the addition of secang wood extract gave a highly significant effect (P<0,01) on the parameters of antioxidant activity, total acid, color index, pH, syneresis, hedonic taste and general acceptance. The interaction between the addition of carrageenan and sappan wood extract gave a highly significant effect on the parameters of antioxidant activity, syneresis, hedonic taste and general acceptance and gave a significant effect (P< 0,05) on the pH parameter.127 PagesSkripsi Sarjan
The Influence of Economic Factors on Economic Growth in Sumatra Island Province
No full textEconomic Growth reflects the ability of a country or region to improve the
standard of living of its citizens through increased output of goods and services.
Based on existing theories and several studies that have been conducted, economic
growth, especially in the province of Sumatra Island, is generally related to several
factors such as plantations, investment, and inflation. This study aims to test and
analyze the effect of plantations, investment, and inflation on economic growth in
the province of Sumatra Island in 2014-2023.
The type of research used in this research is descriptive quantitative while the
data source used in this research is secondary data from the Central Statistics
Agency (BPS). The object of this research is the province on the island of Sumatra.
This study uses panel data with a cross section of 10 Sumatra island provinces and
a 10-year time series, starting from 2014 to 2023. The analysis method used is
panel data regression.
The results of this study indicate that the best model is the Fixed Effect. Based
on the regression results, it is known that partially the independent plantation
variable and the investment variable have a positive and significant effect on
economic growth. While the inflation variable has a positive and insignificant effect
on economic growth. Similarly, the independent variables of plantations,
investment, and inflation have a significant influence on economic growth in the
province of Sumatra Island with a Prob (F-static) value of 0.00000 <0.05.100 PagesSkripsi Sarjan
Comparison of Glutathione and Glutathione Peroxidase as Aging Biomarkers in the Saliva of Elderly Residents at Yayasan Taman Bodhi Asri Nursing Home
No full textComparison of Glutathione and Glutathione Peroxidase as Aging Biomarkers in the Saliva of Elderly Residents at Yayasan Taman Bodhi Asri Nursing Home xiv + 82 pages Aging is an unavoidable biological phenomenon. According to the World Health Organization, the global elderly population will increase from 1 billion in 2020 to 1.4 billion in 2030. Each individual experiences a heterogeneous aging process that cannot be easily tracked through chronological age alone, thus requiring biomarkers to measure biophysiological aging processes and represent the health status. This aging process can be explained by the oxidative stress theory, which involves an imbalance between reactive oxygen species and antioxidants. These antioxidants may include the glutathione system, which encompasses reduced glutathione (GSH), oxidized glutathione (GSSG), glutathione peroxidase (GPx1), and the GSH/GSSG ratio. The aim of this study was to compare salivary levels of GSH, GSSG, GPx1, and the GSH/GSSG ratio in young adults and elderly individuals. The method used in this study was cross-sectional with a purposive sampling technique. The total sample size was 48 individuals, divided into 24 young adults and 24 elderly individuals. Data analysis was conducted using the Mann-Whitney test, showing that the detected levels of GSH, GSSG, and the GSH/GSSG ratio in the saliva of young adults were higher than those in the elderly group, although the differences were not statistically significant (p > 0.05). In addition, the results indicated a significant difference in the levels of GPx1 detected in the saliva of the elderly group, which were higher than those in the young adult group (p = 0.001). The conclusion of this study is that GPx1 can be used as a salivary biomarker for aging.96 PagesSkripsi Sarjan