USU-IR Repositori Institusi Universitas Sumatera Utara
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The Relationship between Hearing Impairment and Tinnitus among Workers at PT. Rejeki Abadi Sambosar
No full textBackground. Hearing loss is a health problem commonly experienced by workers
exposed to noise in industrial environments. Exposure to high-intensity and
prolonged noise can cause damage to the cochlear hair cells, which function to
transmit sound waves. One manifestation that frequently appears alongside hearing
loss is tinnitus, which is the perception of sound without any external source. These
two conditions are interrelated and commonly found in individuals with a history
of noise exposure, although the degree of their association may vary across
different working populations. Objective. To determine the relationship between
hearing loss and the occurrence of tinnitus among workers at PT Rejeki Abadi
Sambosar (RAS). Methods. This study used a descriptive–analytic design with a
cross-sectional approach and consecutive sampling technique. Hearing loss was
assessed through audiometric examination, while tinnitus severity was measured
using the Tinnitus Handicap Inventory (THI). Results. Most respondents had
normal hearing. The most frequent hearing disorder was sensorineural hearing
loss, followed by conductive and mixed hearing loss. A total of 44% of respondents
experienced tinnitus, with the moderate category being the most dominant. The Chi-
Square test showed a significant relationship between hearing loss and tinnitus (p
< 0.001). Conclusion. Most respondents were aged 36–45 years, all were male,
and the majority had worked for less than five years. Sensorineural hearing loss
was the most commonly found type. Tinnitus among workers was generally in the
moderate category, and there was a significant relationship between hearing loss
and the occurrence of tinnitus.93 PagesSkripsi Sarjan
The Influence of Digital Marketing on Purchasing Decisions of Huta Fresh Market Products
No full textThis study aims to examine the influence of digital marketing on consumers’
purchasing decisions for products offered by Huta Fresh Market. The research employed
a quantitative approach using Structural Equation Modeling-Partial Least Squares (SEM
PLS), with a sample of 60 respondents who had previously purchased Huta Fresh Market
products. The independent variables include social media, content marketing, SEO,
interest, and desire, while the dependent variable is purchasing decision.The findings
indicate that digital marketing has a significant effect on purchasing decisions, as shown
by an R-square value of 0.705. Among the variables, SEO was found to be the most
dominant factor influencing purchasing decisions, followed by social media and content
marketing. In contrast, interest and desire did not show a significant impact.These results
suggest that digital marketing strategies that emphasize informative and technical aspects
are more effective in driving consumer purchasing decisions than emotional-driven
factors.72 PagesSkripsi Sarjan
The Effect of Organizational Ambidexerity and Business Resilience on The Performance of Culinary MSMEs In The City Of Medan With Digital Transformation As An Intervening Variable
No full textCulinary MSME sector are one of the fastest-growing economic sectors in the City of Medan and serve as a major driver of local economic activity as well as job creation. The dominance of micro- and small- scale business actors, accompanied by dynamic market competition, changes in consumer preferences, and the growing demand for digitalization, indicates that the performance of culinary MSMEs has not yet reached an optimal level. The ability of business actors to balance innovation and the utilization of existing resources, as well as business resilience in responding to changes, constitutes an important factor in strengthening the competitiveness of MSMEs in the digital era. This researchs aims to analyze the effect of Organizational Ambidexterity and Business Resilience on MSME performance through Digital Transformation. The research was conducted on culinary MSME actors in the City of Medan with a sample size of 160 respondents. The data were analyzed using a quantitative approach through a two-stage embedded approach in SEM-PLS with the SmartPLS 4.0 application. The results idicate that, directly, Organizational Ambidexterity has a positive and significant effect on MSME performance and Digital Transformation, Business Resilience has a positive and significant direct effect on MSME performance, and Digital Transformation has a positive and significant effect on MSME performance and Digital Transformation, and Digital Transformation also has a positive and significant effect on MSME Performance. Indirectly, Digital Transformation positively and significantly mediates the effect of Organizational Ambidexterity on MSME performance as well as the effect of Business Resilience on MSME performance.282 PagesTesis Magiste
Determinants of Sedentary Behavior Among Adolescents (Aged 15-24 Years) in Medan City
No full textAccording to the World Health Organization (WHO), physical inactivity is the fourth leading cause of death worldwide, with two million annually attribute to sedentary lifestyle driven by various factors. This study aims to analyze the relationship between predisposing factors (age, sex, knowledge, attitude, motivation, self-efficacy), enabling factors (facilities), and reinforcing factors (income and family support) with sedentary behavior among adolescents aged 15–24 years who were overweight (BMI ≥23. Data were analyzed using the chi-square test with a significance level of p<0.05. The results from 100 respondents show that 60% had hight sedentary behavior while 40% had low sedentary behavior. Predisposing factors significantly associated with sedentary behavior include age (p=0.047), sex (p=0.037), knowledge (p=0.002), attitudes (p=0.045), and self-efficacy (p=0.028), while self-motivation was not significantly association (p=0.062). The enabling factors of facilities, was significantly associated (p=0.014). among reinforcing factors family support was significantly associated (p=0.037). whereas income was not (p=0.117). Multivariate logistic regression analyzed revealed that family support was the dominants factor influencing sedentary behavior with Exp (B)=6.576. Adolescents with poor family support were six times more likely to exhibit in sedentary behavior compared to those with good family support. In conclusion, adolescents with poor knowledge, low motivation and self-efficacy and limited facilities and family support had a 92.51% probability of engaging in sedentary behavior. Interventions to enhance knowledge, motivation, family support and the provition, of adequate physical activity facilities are essential to reduce sedentary behavior among adolescents.146 PagesTesis Magiste
Pengaruh Penambahan Ekstrak Jintan Hitam (Nigella sativa) dalam Air Minum terhadap Bobot Potong, Persentase Karkas dan Non- Karkas Ayam Broiler
No full textIKHSAN GUSTIANDA. The Effect of Adding Black Cumin (Nigella sativa)
Extract to Drinking Water on Slaughter Weight, Carcass and Non-Carcass
Percentage of Broiler Chickens. (Supervised by USMAN BUDI and FUAD
HASAN).
This study aims to determine the effect of adding Black Cumin (Nigella
sativa) extract to drinking water on slaughter weight and carcass and non-carcass
percentage of Broiler chickens. This research was conducted from May to July 2024
at the Greenhouse and Field Laboratory of the Faculty of Agriculture, Universitas
Sumatera Utara. The design used in this study was a Completely Randomized
Design (CRD) with 4 treatments and 5 replications. The treatments consisted of the
addition of Black Cumin extract (P0=0%; P1=1%; P2=2%; and P3=3%). The
parameters observed were slaughter weight, carcass and non-carcass percentage,
carcass percentage, and non-carcass percentage. The results showed that the
addition of extract in broiler drinking water did not have a significant effect
(P>0.05) on carcass weight, non-carcass weight, carcass percentage and non-
carcass percentage, while the addition of Black Cumin extract had a significant
effect (P<0.05) on slaughter weight.54 PagesSkripsi Sarjan
Analysis of The Proof of Rape Crimes Against Women With Disabilities in the Perspective of Indonesian Positive Law (A Study of Court Decision No. 121/Pid. B/2023/PN. Sbs)
No full textWomen with disabilities are at a high risk of facing discriminatory treatment and becoming victims of crimes due to their physical limitations, which make them particularly vulnerable one such crime being rape. Therefore, it is essential to examine the legal regulation of rape under Indonesia’s positive law, the evidentiary process in cases of rape against women with disabilities under Indonesian law, and how such evidence was presented in court in Case Decision No. 121/Pid.B/2023/PN Sbs. This research is a normative legal study based on secondary data. Data collection was conducted through literature review, and the data were analyzed qualitatively. The regulation of rape under Indonesian positive law is found in the Indonesian Criminal Code (KUHP), Law Number 12 of 2022 concerning Sexual Violence Crimes, Law Number 8 of 2016 concerning Persons with Disabilities, and the Convention on the Rights of Persons with Disabilities. The evidentiary process in rape cases involving women with disabilities refers to the Indonesian Code of Criminal Procedure (KUHAP), using the negative wettelijke system of proof. This means that evidence must comply with the provisions of Article 184 paragraph (1) of the KUHAP. In the trial of the rape case involving a woman with disabilities in Decision No. 121/Pid.B/2023/PN Sbs, the evidence presented included the defendant’s testimony, the victim's testimony, and witness testimonies (including the victim’s parents and other witnesses). Supporting physiccal evidence included a Visum et Repertum (VeR) issued by the Sekura Public Health Center under the Sambas Regency Health Department, and a psychological assessment from Teluk Keramat Regional Hospital. Based on the evidence presented during the trial, the panel of judges concluded that the defendant’s actions fulfilled the elements of Article 6 letter b in conjunction with Article 15 paragraph (1) letter h of Law Number 12 of 2022 on Sexual Violence Crimes. As a result, the defendant was found guilty and sentenced to 8 (eight) years of imprisonment and a fine of IDR 100,000,000 (one hundred million rupiah), with a subsidiary penalty of 2 (two) months' imprisonment if the fine is not paid.129 PagesSkripsi Sarjan
Analysis of Potential Strategy for Buffalo Livestock Development Based on Food Crop Agricultural Waste as a Feed Resource in North Tapanuli Regency
No full textLand potential and feed resources are important factors in the potential for increasing the buffalo population that can be maintained in one area in North Tapanuli Regency, North Tapanuli Regency has a lot of land suitable for raising buffalo, such as vast grasslands, infrastructure needed for buffalo farming, animal markets and adequate roads which of course still need improvement. North Tapanuli Regency has a lot of potential fertile land, so that sources for buffalo feed can be produced in the district. The purpose of this study was to inventory the production of agricultural waste from food crops that support it as a source of buffalo feed in North Tapanuli Regency, North Sumatra Province. Analyze strategic factors that influence the success of developing buffalo farming businesses in North Tapanuli Regency, North Sumatra Province. The analysis used in this study is multiple linear regression. The conclusion of this study is that the potential for food crop waste as a source of buffalo feed in North Tapanuli Regency is included in the abundant category with the carrying capacity of food crop land being able to support the needs of buffalo feed as much as 36,595.55 ST/year. Buffalo livestock productivity in North Tapanuli Regency will increase if there is an increase in one unit of feed in livestock by 0.644, livestock experience by 0.244, mating system by 0.348 and productive female broodstock by 0.519. The S - O (Strength - Opportunities) strategy is a livestock development strategy that can be carried out by buffalo farmers in North Tapanuli Regency.95 PagesTesis Magiste
Analysis Interpretation of Rainfall, Fertilization and Land Slope on the Productivity of Oil Palm (Elaeis guneensis Jacq.) at PT. Perkebunan Nusantara IV Sei Rokan Estate Region III
No full textThis study aims to analyze the interpretation between land slope, rainfall, and fertilization on the productivity of oil palm plants (Elaeis guineensis Jacq.) at PT. Perkebunan Nusantara IV Kebun Sei Rokan Regional III conducted in March 2025 to November 2025. The hypothesis of this study is that there is a significant influence between land slope, rainfall, rainy days, and fertilization on the productivity of oil palm (Elaeis guineensis Jacq.) at PT. Perkebunan Nusantara IV Kebun Sei Rokan Regional III. This study uses secondary data available in the plantation administration, including oil palm productivity data for 2015-2024, rainfall and rainy days data, fertilization data for 2014-2023 and land slope data. The analysis methods used are simple linear regression analysis, multiple linear analysis and correlation analysis. The model was tested for its feasibility using classical assumption tests including normality tests, heteroscedasticity tests, multicollinearity tests, and autocorrelation tests using the statistical tool SPSS.v.25 for Windows. The results of the study showed that rainfall partially had a significant effect on increasing oil palm productivity on flat, medium, and sloping land, while rainy days partially had no significant effect on increasing oil palm productivity on flat, medium, and sloping land. Multiple linear regression models on flat land and medium land show that rainfall and rainy days can increase oil palm productivity, while on sloping land it shows that rainy days have no effect on increasing oil palm productivity. NPK and Mg fertilization partially and simultaneously had no significant effect on increasing oil palm productivity on flat, medium, and sloping land. The multiple linear regression model of NPK fertilization on flat land shows a positive effect in increasing oil palm productivity, while Mg fertilization on medium land shows a positive effect in increasing oil palm productivity.115 PagesSkripsi Sarjan
Policies and Regulatory Framework of Eksport Activities in Expanding the Domestics Market Under Government Regulation Number 29 of the Implementation of the Trade Sector
No full textThis study aims to describe and analyze the reasons why it is important for the
government to formulate export policies to expand.This study aims to describe and
analyze the reasons why it is important for the government to regulate export policies
to expand the domestic market, as well as to analyze the impact of changes in export
regulations and policies following Government Regulation No. 29 of 2021 on the
Implementation of Trade and its derivative regulations, and to determine the impact
of Government Regulation No. 29 of 2021 on the expansion of the domestic market.
This research is normative legal research with a regulatory approach. The
research data uses secondary data, which includes primary, secondary, and tertiary
legal materials, and is collected using literature study techniques. Data analysis
uses qualitative normative data analysis methods.
The Indonesian government has made various efforts to encourage the
expansion of the domestic market, one of which is by increasing export volume and
understanding the export administration process to increase public interest in
expanding their market from the domestic market to the international market. The
changes in export regulations and policies following Government Regulation No. 29
of 2021 concerning the Implementation of Trade and Minister of Trade Regulation
No. 19 of 2021 concerning Export Policies and Regulations are intended to simplify
the process of export and import trade and also increase the motivation of the public
to expand their sales markets abroad. The impact of Government Regulation No. 29 of
2021 on the expansion of the domestic market is the ability to specialize in producing
cheap and competitive goods and services, enabling export activities that ultimately
increase state revenue, foreign exchange reserves, capital transactions, and
employment opportunities.134 PagesSkripsi Sarjan
The Association Between Gadget use Duration and Speech Delay Among Children at Prof Dr Chairuddin P Lubis Hospital
No full textBackground. Speech delay is a developmental disorder that is commonly found in children during their early years. In today’s modern technological era, the use of electronic devices has become normal, even among very young children. Excessive screen exposure can reduce opportunities for social interaction and verbal communication, which may interfere with their language development process. Objective. To determine whether there is an association between the duration of gadget use and speech delay among children at Prof. Dr. Chairuddin P. Lubis University Hospital, Universitas Sumatera Utara, Medan, 20155, INDONESIA. Method.This study adopted an analytical design with a cross-sectional approach involving 91 randomly selected children. Data were collected using questionnaires identifying respondent characteristics and the Developmental Pre-Screening Questionnaire (KPSP). Data analysis was conducted using the Chi-Square test. Results. The majority of respondents were male (72.5%) and used gadgets for more than three hours per day (41.8%). Findings from the KPSP showed that 56.0% of the children experienced developmental deviations. The Chi-Square test indicated a significant association between the duration of gadget use and speech delay (χ² = 39.325; p = 0.000). Conclusion. There is a significant relationship between the duration of gadget use and speech delay among children. Excessive gadget use can hinder language development in children. Therefore, parents are advised to limit their children’s screen time and encourage more direct interaction.79 PagesSkripsi Sarjan