USU-IR Repositori Institusi Universitas Sumatera Utara
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The Implementation of Project-Based Learning in Improving Group Communication Skills of Students at Universitas Sumatera Utara
No full textThis research is titled "The Implementation of Project-Based Learning in Improving Group Communication Skills of Students at Universitas Sumatera Utara." The purpose of this study is to analyze and understand how Project-Based Learning (PjBL) relates to the improvement of group communication skills among students at Universitas Sumatera Utara. This study is based on relevant theories, including the group communication theory by Marshall Scott Poole in The Handbook of Group Communication Theory and Research.
A quantitative approach was used with a total of 393 student respondents, selected through Proportional Stratified Random Sampling. The research method applied is correlational, aiming to find out whether there is a relationship between the two variables. Data analysis techniques included frequency tables, cross-tabulation, and hypothesis testing using Spearman’s Rho with the help of SPSS version 30. The results show a significant relationship between the implementation of PjBL and the improvement of group communication skills, with a correlation coefficient of 0.235 and a significance value of less than 0.001. Although the correlation is considered low based on Guilford’s interpretation, the relationship is still statistically proven. This means the use of PjBL has a positive impact on helping students develop better communication skills in group settings.130 PagesSkripsi Sarjan
Analysis of Japanese Work Ethic in The Housekeeping Division at Shigira Seven Miles Resort, Miyakojima, Okinawa
No full textThis thesis discusses the Japanese work ethic as implemented in the housekeeping division
at Shigira Seven Miles Resort, Miyakojima, Okinawa. The aim of this thesis is to describe
the concept of Japanese work ethic, which consists of the principles of kaizen (continuous
improvement), ganbaru (working hard and never giving up), and omotenashi
(wholehearted hospitality), as well as to analyze the supporting and inhibiting factors in
their daily application. This thesis employs a qualitative descriptive method, with data
collected through direct observation and interviews with housekeeping staff. The findings
indicate that Japanese work ethic values are concretely applied through staff training,
daily routines, and a standardized organizational structure. Supporting factors include
clear standard operating procedures (SOPs), intensive training, and a disciplined work
culture. Meanwhile, inhibiting factors include high workload pressure and a strong
demand for perfection, which can lead to stress. The consistent implementation of
Japanese work ethics has been shown to improve service quality, operational efficiency,
and guest satisfaction at the hotel.64 PagesSkripsi Sarjan
Analysis of Indonesia's Economic and Geopolitical Interests in BRICS Membership
No full textBRICS is an international organization established in 2009 for the purpose of cooperation between countries in the fields of economics and geopolitics. This study aims to explain how Indonesia's interests, especially in the fields of investment and defense geopolitics, are if it joins BRICS. The research method used is descriptive qualitative research with secondary data collection through electronic reports such as articles, government websites, foreign media, journals, biographies, regulations and other printed sources related to BRICS. The theory used in this study is the theory of International Organization, National Interest and International Cooperation. The data analysis techniques used are Data Reduction, Data Presentation and Conclusions.
The results of this study explain that Indonesia's joining BRICS can provide Indonesia with the opportunity to obtain funding from the New Development Bank (NDB) with an estimated total budget of 45,000 trillion rupiah for the National Medium-Term Development Plan (RPJMN) in infrastructure development. The total value of FDI realization (Foreign Direct Investment) of BRICS countries reached 97.46 trillion rupiah in 2024 with a total of 20,259 projects, this has the potential to increase foreign investment and the amount of investment from BRICS countries into the Indonesian economic sector. In addition, Indonesia's joining BRICS has the potential to increase geopolitical cooperation, especially defense, which includes joint military exercises, conducting intelligence exchanges and also cooperating in the procurement of Main Weapons System Equipment (ALUTSISTA) to modernize the Indonesian military. Indonesia's discourse that has changed to become an official member of BRICS is a strategic step, with its membership in BRICS Indonesia can take advantage of this opportunity for national interests, especially in the aspects of investment and Indonesian defense.125 PagesSkripsi Sarjan
The Effect of Adding Porang Glucomannan Flour and Lime Juice (Citrus aurantiifolia) on the Quality Characteristics of Bay Leaf Jelly Drink (Syzygium polyanthum)
No full textThis study was conducted to determine the effect of adding porang glucomannan flour and lime juice on the quality characteristics of bay leaf jelly drink. The research was carried out at the Food Material Chemical Analysis and Biochemistry Laboratory, and the Food Material Chemical Analysis Laboratory, Faculty of Agriculture, Universitas Sumatera Utara, Medan. A factorial completely randomized design (CRD) with two factors was used in this study: the addition of porang glucomannan flour (G) at concentrations of 0.4%, 0.5%, and 0.6%; and lime juice (J) at concentrations of 3%, 4%, 5%, and 6%.
The parameters analyzed included total soluble solids, vitamin C content, antioxidant activity, pH level, syneresis, fiber content, descriptive analysis of aroma, taste, suction power, and overall hedonic acceptance.
The results showed that the percentage of porang glucomannan flour had a highly significant effect on total soluble solids, antioxidant activity, pH level, syneresis, fiber content, descriptive suction power, viscosity, and overall hedonic acceptance. The percentage of lime juice had a highly significant effect on total soluble solids, vitamin C content, antioxidant activity, pH level, syneresis, descriptive aroma, taste, suction power, viscosity, and overall hedonic acceptance. The interaction between the two factors had a highly significant effect on pH level, syneresis, suction power, and overall hedonic acceptance.110 PagesSkripsi Sarjan
Analysis of Network Pharmacology, Molecular Docking, and Molecular Dynamics of Bisbenzylisoquinoline Compounds from Stephania Genus Against Liver Cancer
No full textBackground: Liver cancer is the fourth leading cause of cancer-related death worldwide. Chemotherapy has limited effectiveness and often causes severe side effects, highlighting the need for safer therapeutic alternatives. Bisbenzylisoquinoline (BBI) compounds from the Stephania genus have shown anticancer potential, yet their molecular targets against liver cancer remain poorly explored.
Objective: This study aims to explore the anticancer potential of bisbenzylisoquinoline compounds from the Stephania genus against liver cancer using an in silico approach.
Methods: The candidate compounds were evaluated for their predicted biological activity and pharmacokinetics using PASSOnline and SwissADME. Selected compounds were further analyzed through network pharmacology, followed by Gene Ontology and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment to identify target proteins. Molecular docking was performed using AutoDock Vina, and the best ligand–receptor complex was further simulated using YASARA-based molecular dynamics for 100 ns.
Results: Network pharmacology analysis identified two key targets, AKT1 and PI3K, which play essential roles in hepatocellular carcinoma signaling pathways. Molecular docking results showed that all 11 compounds exhibited lower binding affinity scores compared to sorafenib against AKT1, with four of them occupying the same binding pocket as the native ligand. For PI3K, 10 out of 11 compounds demonstrated lower binding affinity scores than sorafenib; however, only one compound was found to bind within the same pocket as the native ligand. Molecular dynamics simulation of the AKT1–isotrilobine complex over 100 ns revealed a stable interaction, characterized by low RMSD values, minimal RMSF fluctuations at the active site, consistent radius of gyration (Rg) and SASA values, stable hydrogen bonding, and the highest MM-PBSA binding energy of 70.61 kJ/mol.
Conclusion: Isotrilobine shows promise as a potential anticancer candidate against liver cancer through stable interactions with the target protein AKT1. This study provides a preliminary scientific basis for the development of liver cancer therapies based on natural compounds.151 PagesSkripsi Sarjan
Circulation Service Activities At the Library and Archives Office Of Medan City
No full textLibrary service is an essential task and the culmination of all activities inthelibrary. This research aims to determine the implementation of circulation servicesat the Library and Archives Office of Medan City. The research method employedis descriptive, utilizing data collection techniques that include direct observation, in-depth interviews, literature reviews, and document collection. The resultsindicate that circulation services include: 1) member registration through fillingout forms and inputting data using the INLISLite library automation system; 2)
borrowing collections that require a library member card; 3) returning collections, 4) extending the borrowing period which can only be done once with a durationof
two weeks; 5) collection of collections carried out by contacting user contacts or
educational institutions; 6) giving sanctions in the form of a ban on borrowingaslong as the user is late; 7) compiling service statistics which are carriedout
automatically and updated annually; 8) and monitoring circulation services whichare carried out regularly every month. Overall, the circulation service at theLibrary and Archives Office of Medan City has been running smoothly andiswell-organized. However, there are still aspects that can be improved to enhancethe quality of service for users.80 PagesKertas Karya Diplom
Implementation of the School Operational Assistance Fund (BOS) Program for Junior High Schools in Padang Lawas Regency
No full textThe high number of children who do not continue their education to the Junior High School (SMP) level due to the lack of available educational facilities, especially in areas far from urban areas, is a serious problem in Padang Lawas Regency. The implementation of BOS funds as an effort to equalize educational services in this Regency is considered less than optimal. This indicates the presence of obstacles in the implementation of the BOS fund in the region. Therefore, this study aims to determine and describe how the Implementation of the School Operational Assistance Fund (BOS) Program for Junior High Schools in Padang Lawas Regency. This study uses a qualitative method with a descriptive approach. Data collection techniques through interviews, observations, literature studies and secondary data. This study uses indicators of accuracy in implementing the Program according to Charles. O Jones (1996) in the form of Organization, Interpretation, Implementation/Application. Research informants include the Head of the Education and Culture Office of Padang Lawas Regency, Head of Elementary Education, Head of Student Improvement and Quality Section, Head of State Junior High School (MTsN) 1 Padang Lawas, Community Leaders, and Dropouts/Not Continuing Further Education. The results of the study show the following: Implementation of the School Operational Assistance Fund Program as an effort to improve the quality of education in Padang Lawas Regency includes indicators 1) Organization: Organization of the implementation of BOS Funds in Padang Lawas Regency is still not optimal due to the absence of regional regulations such as the Regent's Regulation (Perbup) which can adjust central policies to local needs. 2) Interpretation: Interpretation of BOS policies in Padang Lawas Regency does not fully reflect the social, economic, and geographical conditions of the local community. Many schools allocate BOS funds inappropriately, such as purchasing technological equipment in areas without stable electricity, while repairing basic facilities is neglected. 3) Implementation/Application: In its implementation, BOS Funds have experienced a significant increase in budget, but have not fully impacted on improving the quality of education. The inequality of fund allocation based on the number of students causes small schools in remote areas to receive minimal funds, even though they have great needs.178 PagesSkripsi Sarjan
Implementation of Information Technology in Office Administration at Four Points by Sheraton Medan
No full textThe advancement of information technology has brought significant
transformation in administrative processes, including in the hospitality sector.
Four Points by Sheraton Medan, as an international four-star hotel, has adopted
information technology to support administrative activities, particularly in
reservations, check-in/check-out, guest data management, and transaction
recording. However, in its implementation, the hotel still faces several challenges
such as limited system integration between departments, unstable internet
connectivity, and insufficient technology training for staff. This study aims to
identify the forms of information technology utilization in administrative
processes and assess its benefits in improving work efficiency This research uses a
qualitative method with a case study approach, where data were collected through
in-depth interviews with four informants from the Front Office, Finance,
Information Technology, and Human Resources departments. The results show
that the use of information technology improves daily operational efficiency.
However, dependence on internet connectivity and the lack of real-time
integration between departmental systems (such as minibar, spa, gym, f&b) lead
to service delays and communication risks. The hotel has implemented manual
backup procedures as a contingency during system disruptions and applies
international data security standards. Regular internal training is also conducted
to enhance staff adaptability to technology. The utilization of information
technology at Four Points by Sheraton Medan has provided significant benefits in
administrative effectiveness. However, further improvements are needed in terms
of system integration, network infrastructure, and human resource competencies
through continuous training programs.96 PagesKertas Karya Diplom
A Framing Analysis of News Coverage on the Medan Block in the Online Media Waspada.co.id
No full textThis study analyzes how the online media Waspada.co.id frames news coverage of
the Blok Medan case using Zhongdang Pan and Gerald M. Kosicki's framing analysis
model. This issue has sparked public discussion as it involves several political figures,
including regional officials and the family of President Joko Widodo. The study aims to
uncover how the media constructs social reality in reporting this case and how framing
structur such as syntax, script, thematic, and rhetorical structures shape public
opinion.This research employs a qualitative method with a descriptive approach. Data
were obtained from Waspada.co.id news articles published in August 2024 that
specifically discuss Blok Medan. The findings reveal that Waspada.co.id tends to frame
the issue by emphasizing allegations of political figures involvement and public reactions
to the case. The news coverage also shows certain biases by highlighting statements from
various sources with differing perspectives on the issue.The study confirms that media
does not merely disseminate information but also plays a role in shaping public opinion
and constructing social reality through specific framing choices.118 PagesSkripsi Sarjan
Chrome Coating on Zirconium By Pack Cementation Method on Corrosion Rate
No full textThe manufacture of zirconium alloy coating with chrome by using pack cementation
method and comparison of its corrosion Knowing the effect of coating on zirconium
plate in 9000C temperature and comparing its corrosion characteristics in NaOH
solution in 8000C temperature where the effect of soaking time on corrosion rate for
mass value per each hour. This research aims to make the coating on zirconium plate
resistant to corrosion. Looking at the time variation on the decrease in sample mass
with corrosion test results. Preparation of coating with a mixture of powder Cr 15
gr, Al2O3 30 gr, NH4Cl 5 gr in a mixture until homogeneous sintering for 10 hours.
Zirconium plates in corrosion tests with pure NaOH experienced a weight loss of
162,0681 mpy and without coating corrosion test corrosion rate value of 6,8756 mpy.
To analyze the elemental composition of a material (XRF), surface morphology
structure (SEM), crystal structure (XRD), zirconium plate hardness analysis (Vickers
Hardness). The result values of the physical properties of zirconium plates coated
and without Cr coating are very different, the SEM test showed the morphology of
the formation of the coating experienced uneven distribution on the zirconium plate,
the XRD test showed a crystal peak where zirconium before coating had a hexagonal
crystal peak and when coated and corroded it changed to monoclinic, average crystal
size on pure zirconium plate 28.04nm, zirconium corrosion 4, 87 nm and for coated
coating 16.96 nm vickers hardness test results Zirconium NaOH 375.99 HV,
Zirconium Chrome 169.07HV, Zirconium Chrome corrosion NaOH 147.91 HV106 PagesSkripsi Sarjan