USU-IR Repositori Institusi Universitas Sumatera Utara
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The Role of Classroom Climate in the Learning Motivation of Children in Conflict with the Law at the Special Child Development Institution (LPKA) Class I Medan
No full textLearning motivation plays an important role in the success of education, including
for children in conflict with the law who participate in the equivalency education
program at the Special Child Development Institution (LPKA). One factor
influencing student learning motivation is the classroom climate, referring to
students’ perceptions of all situations formed in the classroom through interactions
with teachers and other students. This study aims to determine the role of
classroom climate in learning motivation of children in conflict with the law at the
Special Child Development Institution (LPKA) Class I Medan. This study is a
population study involving 60 children in conflict with the law who participated in
the equivalency education program at the Special Child Development Institution
(LPKA) Class I Medan during the research period. The research instruments used
are the Indonesian version of the AMS (Academic Motivation Scale) developed
by Marvianto and Widhiarso (2019) and the Indonesian version of the WIHIC
(What Is Happening In The Classroom) developed by Rahayu, Putra, Rahmawati,
Hayat & Koul (2021). The data analysis method used is multinomial logistic
regression, using the SPSS version 26.0 for Windows. Based on the data analysis,
the value of sig. = 0.246 > 0.05, which means that classroom climate has no role
in the learning motivation of children in conflict with the law at the Special Child
Development Institution (LPKA) Class I Medan.121 PagesSkripsi Sarjan
Optimization of the Utilization of Palm Kernel Meal (BIS) and Indigofera zollingeriana Leaf Meal in Feed on Carcass and Internal Organs of KUB Chickens
No full textThe study was conducted to optimize the utilization of Palm Kernel Meal
(BIS) and Indigofera sp. leaf meal in the diet of KUB chickens (Kampung Unggul
Balitbangtan). The experiment involved 250 one-day-old KUB chicks divided into
five treatments with five replications. The treatments consisted of P0 (control), P1
(PKM 4% + Indigofera 3%), P2 (PKM 8% + Indigofera 6%), P3 (PKM 12% +
Indigofera 9%), and P4 (PKM 16% + Indigofera 12%). The parameters measured
included slaughter weight, carcass weight, carcass percentage, and internal organs
(gizzard, liver, and heart). The findings of this research indicate that the inclusion
of Palm Kernel Meal and Indigofera leaf flour up to a level of 28% in KUB chicken
diets can serve as a substitute for maize and soybean meal. However, this
substitution did not significantly improve slaughter weight, carcass weight, carcass
percentage, or internal organ development (P>0.05). Based on the results
obtained, further research is warranted to optimize the utilization level of palm
kernel meal and Indigofera leaf flour in KUB chicken diets63 PagesSkripsi Sarjan
Javanese Ethnicity in Merek Village, Merek Sub-district, Karo Regency 1995-2010
No full textThis study discusses the process of the arrival of the Javanese ethnic group in Merek Village between 1995 and 2010 and the factors that influenced it, the forms of interaction and social adaptation of the Javanese ethnic group with the local community in Merek Village during the period 1995–2010, and the social and cultural impacts caused by the presence of the Javanese ethnic group in Merek Village during the period 1995 to 2010. This study aims to understand the process of the arrival of the Javanese ethnic group in Merek Village between 1995 and 2010 and the factors influencing it, the forms of social interaction and adaptation between the Javanese ethnic group and the local community in Merek Village during the period 1995–2010, and the social and cultural impacts caused by the presence of the Javanese ethnic group in Merek Village during the period 1995–2010. This study employs a qualitative research approach using the historical method. The historical method consists of four stages: heuristics, verification, interpretation, and historiography. In the heuristic stage, the data used is divided into two categories: primary data, which includes archives and official documents from the Central Statistics Agency (BPS), photographs, and documentary materials that provide an overview of activities and events that occurred, as well as transcripts of interviews with key informants who have direct experience; and secondary data, which includes articles, journal and thesis websites, e-books, and books. Based on the research findings, the process of the arrival of the Javanese ethnic group to Merek Village was driven by push factors from their place of origin, such as land scarcity and high land prices in Berastagi and Tebing Tinggi, as well as pull factors in Merek Village, including the availability of fertile land, a supportive climate, and a conducive social environment. Their arrival often occurred in a chain-like manner, influenced by the success of their predecessors in agriculture. In terms of social interaction and adaptation, the Javanese ethnic group established close ties with the Karo community through economic, social, and cultural activities, and endeavored to adapt to local traditions, including language use and participation in traditional ceremonies, while the Karo community also demonstrated an open attitude despite cultural challenges. The presence of the Javanese ethnic group has had a significant socio-cultural impact, enriching diversity, enhancing work ethic, and promoting cultural acculturation, evident in mutual influence in aspects of food, language, and traditional celebrations, thereby fostering social harmony among ethnic groups in Merek Village.92 PagesSkripsi Sarjan
The Effect of Electrolyte Solution Types on The Performance of Batteries Designeda and Built by Utilizing Used Batteries
No full textIncreased electricity needs accompanied by limited resources is a big problem
in today's times. Reuse of used batteries is the right solution, while keeping in mind
the quality of current and output voltage. This study analyzed the performance of test
batteries using a variety of easily available, abundant, and inexpensive electrolytes,
compared to conventional electrolytes. Coconut water and salt water are chosen as
alternatives to conventional electrolytes, such as sulfuric acid. The copper-zinc
electrode (Zn-Cu) pair was chosen because of its good corrosion resistance to
corrosive electrolytes.
Battery performance testing is carried out simultaneously on each test
electrolyte with identical dimensions, and monitored every 5 minutes to observe the
current and voltage drop at the 3V LED load. The use of Arduino and current sensors
is required to record data until the entire test battery runs out of power. The results
showed that sulfuric acid electrolytes had a decrease in the best voltage value,
followed by salt water and coconut water. A similar thing is also observed in the
decrease in current value.57 PagesSkripsi Sarjan
The Effect of Experiental Marketing and Brand Trust on Repurchase Interest (Study on Sociolla Consumers in Medan)
No full textThis research is driven by the rapid growth of the beauty industry in Indonesia which is increasingly competitive, where experiential marketing and brand trust are key factors in maintaining customer loyalty. Sociolla, as one of the largest beauty retail platforms in Indonesia, is trying to increase its consumers' repurchase interest by offering an interesting shopping experience and building trust in the products they offer.
The purpose of this study is to analyze the effect of experiential marketing and brand trust on repurchase intention of Sociolla consumers in Medan City. The influence of the two variables will be analyzed both separately and simultaneously on repurchase interest.
The method used in this research is a survey with a quantitative approach, where data is collected through questionnaires distributed to 100 respondents who have shopped at Sociolla physical stores in Medan. The questionnaire consists of questions that measure experiential marketing, brand trust, and repurchase intention. The data obtained will be analyzed using multiple linear regression analysis to test the effect of each independent variable on the dependent variable.
The results showed that experiential marketing has a positive and significant effect on repurchase intention, with a tcount value of 4.166 which is greater than the t table and a significance level of 0.00 which is smaller than 0.05.
This shows that positive shopping experiences, such as an attractive store atmosphere, good service, and pleasant interactions with products, encourage
consumers to make repeat purchases. In addition, brand trust also shows a significant positive effect on repurchase intention, with a tcount value of 13.784 which is greater than 1.985 and a significance of 0.000. Simultaneous test (F test) shows that experiential marketing and brand trust together have a significant effect on repurchase intention, with an Fcount value that is much greater than Ftable. The Adjusted R Square value of 0.723 indicates that 72.3% of the variation in repurchase intention can be explained by these two variables, while 27.7% is influenced by other factors not examined in this study.167 PagesSkripsi Sarjan
Characteristics of Elective Surgery Patients and Quality of Operating Room Services at RS Adam Malik Medan
No full textIntroduction: Elective surgery is a planned medical procedure requiring optimal
coordination from the preoperative to postoperative phases. As a national referral
hospital, H. Adam Malik General Hospital in Medan handles a high volume of
elective procedures, making service quality evaluation essential. This study aimed
to describe patient characteristics and service quality in the hospital's central
operating room.
Methods: A descriptive quantitative study with a cross-sectional approach was
conducted, involving 580 patients undergoing elective surgery. Data were collected
from medical records and analyzed using SPSS.
Results: Most patients were aged 18–40 years (48.8%), with a mean age of 40.5 ±
22.42 years. Females accounted for 53.8% of the sample, and the majority were
classified as ASA III (44.7%). Pain was the most common surgical indication
(45.9%), and orthopedic surgery was the most frequently performed procedure
(24%). The average body mass index was 22.44 ± 4.38. Abnormal
electrocardiogram findings were observed in 53.3% of patients, while 40% had
abnormal chest X-rays. General anesthesia was administered in 86.2% of cases.
Most surgeries occurred between 06:01 and 12:00 (69.8%), with an average
duration of 128.17 ± 126.90 minutes. A mismatch between operator arrival time
and incision time occurred in 69.3% of cases. The average postoperative pain score
was 3.47 ± 0.811, with NSAID-paracetamol combinations being the most common
analgesic regimen.
Conclusion: Overall, 70.3% of patients rated the service quality as good. However,
improvements in operative time efficiency and team coordination are needed.
Strengthening surgical scheduling management, team training, and perioperative
protocol optimization are recommended.201 PagesTesis Magiste
Pre-design of ZA (Zwavelzuur Ammonium) Fertilizer Production Factory Using the Merseburg Process with a Capacity of 100.000 Tons/Year
No full textZA fertilizer contains NH4+ ions, which are essential for plant growth in
Indonesia, a predominantly agricultural country. ZA fertilizer is also an inorganic
herbicide that can kill weeds (invasive plants). This fertilizer contains less nitrogen,
increasing the cost per applied nitrogen mass in agricultural operations, but
provides the advantage of incorporating another key nutrient, sulfur.
The proposed ZA (Zwavelzuur Ammonium) fertilizer manufacturing plant
uses the Merseburg process with a capacity of 100,000 tons/year and operates 330
days a year. The plant is planned to be located on Jalan Tambak Osowilangun,
Benowo District, Surabaya City, East Java, Indonesia. The proposed ZA fertilizer
plant design utilizes the Merseburg process to apply chemical engineering
knowledge, including mass balances, energy balances, equipment specifications,
and operational requirements.
The results of the economic evaluation of the ZA fertilizer manufacturing
plant using the Merseburg process can be seen as follows:
Total capital investment : Rp 4.766.052.231.365
Production cost : Rp 2.351.746.330.506
Sales revenue : Rp 3.946.613.763.501
Net profit : Rp 985.541.114.829
Profit margin : 37,340%
Break even point : 54,717%
Return on investment : 20,064%
Pay out time : 4 Tahun 9 bulan
Return on network : 33%
Internal rate of return : 30,062%
From the results of the economic aspect analysis, it can be concluded that
the ZA fertilizer factory with a Merseburg process capacity of 100,000 tons/year is
feasible to be established.477 PagesSkripsi Sarjan
Intercultural Communication Messages in DEL FM Radio Broadcasts and Efforts to Strengthen Batak Cultural Identity in Toba Regency
No full textThis research, titled "Intercultural Communication Messages in DEL FM Radio Broadcasts and Efforts to Strengthen Batak Cultural Identity in Toba Regency" aims to examine how intercultural communication practices carried out by DEL FM Radio can strengthen Batak cultural identity within the Toba community. In the era of globalization, which challenges the preservation of local cultures, radio serves as a vital communication bridge that connects people to their cultural values. This research employs a qualitative approach using a case study method. The primary theories used are Intercultural Communication Theory (Edward T. Hall and Liliweri) and Cultural Identity Theory (Mary Jane Collier). Data were collected through in-depth interviews, observation, and documentation. The informants include one announcer and one producer from DEL FM as the main informants, one traditional leader as a triangulator, and one active listener as an additional informant. The findings reveal that DEL FM actively incorporates Batak cultural elements into its broadcasts, such as the use of local language, traditional music, cultural proverbs, and discussions of values like Dalihan Na Tolu in flagship programs such as In DEL Morning and Danau Toba Show. The announcers act as cultural mediators who deliver messages in an engaging and communicative manner. This creates an emotional closeness between listeners and their cultural identity, fostering pride and collective awareness of the importance of preserving Batak culture. Thus, intercultural communication within DEL FM’s broadcasts significantly contributes to strengthening Batak cultural identity in Toba Regency.133 PagesSkripsi Sarjan
Management of Nursing Care for the Batak Toba Tribe Family for Cancer Patients in Medan City
No full textCancer is the leading cause of death globally and continues to increase in cases
every year, including in Indonesia. Cancer not only affects patients, but also
places a large psychological, social, and economic burden on families as the main
support system in the care process. This practicum aims to manage family nursing
care for cancer patients from the Batak Toba tribe in Medan City, with a five-task
family health approach, namely recognizing health problems, decision making,
providing care, modifying the environment, and utilizing health facilities. The
study was conducted on three families from the Batak Toba tribe with family
members suffering from thyroid cancer, uterine cancer, and bladder cancer. The
results of the study showed that families were not optimal in carrying out family
health functions, especially in recognizing symptoms early, making timely medical
decisions, and providing care that was appropriate to the patient's condition. The
nursing care plan carried out included health education, preparing a control
schedule, self-care training, and fostering healthy living behaviors. The
evaluation showed an increase in understanding and active involvement of
families in patient care, as well as the ability to recognize danger signs and utilize
health services appropriately. Family nursing approach based on five main tasks
adapted to local cultural values has been proven to improve the effectiveness of
care and the quality of life of patients and their families.131 PagesKarya Tulis Profes
Leveraging Digital Tecnology As A Marketing Communication Strategy In Goat Farming
No full textThis study aims to design and implement digital technology as a marketing communication strategy for Arjuna Farm, a goat farm seeking to improve the effectiveness of its information delivery to consumers. Through a web-based system development approach, a website was designed to showcase product catalogs, business descriptions, and ordering information. This system is expected to address the limitations of conventional marketing methods, which previously relied solely on word-of-mouth promotion and manual communication. The developed website is equipped with features for product management, customer contact, and a user-friendly interface. Although the current payment method still relies on a Cash on Delivery (COD) system, the implementation has proven effective in expanding the farm's marketing reach and enhancing its service professionalism. The results demonstrate that digital technology directly contributes to improving marketing communication, especially in reaching a wider target audience through online media. During the implementation stage, user requirements were identified, and system functions were tested to ensure alignment with predefined goals. The testing results show that the system offers easy access for users to find product information, place orders, and interact directly with the farm’s administrators via the available channels. Supported by well-structured documentation and a solid database design, the system holds significant potential for future development, including feature expansion and the integration of additional technologies such as digital payments and data-driven customer management systems.90 PagesKertas Karya Diplom