Muhammadiyah University of Surakarta
UMS Digital Library - Selamat datang di UMS Digital LibraryNot a member yet
61626 research outputs found
Sort by
Analisis Pengaruh Variasi Berat Roller Pada Sistem Transmisi CVT Terhadap Peforma Motor 150cc Dengan Menggunakan Pengujian Dynotest
Full text linkThis study analyzes the effect of roller mass variation in the Continuously Variable Transmission (CVT) system on the performance of a 150cc automatic motorcycle engine. The roller masses used were 9, 12, and 15 grams, tested using a dynamometer to obtain data on torque, power, and specific fuel consumption (SFC) at engine speeds ranging from 3250 to 5000 rpm. The results show that roller mass significantly affects engine performance. The 9-gram roller produced a maximum torque of 19.83 Nm at 4000 rpm with faster initial acceleration but higher fuel consumption. The 12-gram roller achieved 23.28 Nm of torque at 3750 rpm and a maximum power of 12.70 HP at 4500 rpm with good fuel efficiency. Meanwhile, the 15-gram roller showed the best fuel efficiency (SFC 0.13 kg/kWh) but slower initial acceleration. Overall, the 12-gram roller is considered the most optimal configuration, providing the best balance between torque, power, and fuel efficiency
Analisis Situational Crisis Communication Theory (SCCT) Pada Respon Krisis PT. Sritex Dalam Pemberitaan Kepailitan Di Media Online Kompas.Com Dan Tempo.Co
No full textThis study examines the crisis communication strategies implemented by PT. Sri Rejeki Isman Tbk (Sritex) in facing bankruptcy based on online media coverage from Kompas.com and Tempo.co. Sritex's bankruptcy declared by the Semarang Commercial Court in October 2024 resulted in significant impacts on more than 10,000 employees and broad social and economic consequences. This research aims to determine how PT. Sritex's crisis communication strategies in facing bankruptcy based on Situational Crisis Communication Theory (SCCT) categorization. The research method uses descriptive quantitative with content analysis approach. The research sample consists of 35 news articles published from October 25, 2024 to July 11, 2025, with 15 news from Kompas.com and 20 news from Tempo.co. Data were collected through purposive sampling technique with thematic analysis units. Research findings indicate that the justification strategy was the most dominant response with 64%, followed by denial (13%), ingratiation (10%), victimage (7%), excuse (3%), and compensation (3%). Reliability testing using Holsti's formula yielded a value of 0.8 or 80%, indicating reliable data. Independent sample t-test showed no significant difference between Kompas.com and Tempo.co coverage (Sig. 0.769 > 0.05). The study concludes that PT. Sritex implemented crisis communication emphasizing transparency and responsibility as efforts to improve corporate image and minimize negative impacts of the bankruptcy crisis
Hubungan Regulasi Diri dan Kontrol Diri dengan Intensitas Bermain Game Online pada Siswa di SMA Batik 1 Surakarta
Full text linkThe high intensity of online gaming has become a widespread phenomenon across various groups and is especially prevalent among individuals in adolescence. Excessive use can lead to addiction, hinder academic achievement, and disrupt social interactions and health. The purpose of this study is to examine the relationship between self-regulation and self-control with the intensity of online gaming among students in Class X.2, X.4, X.5, X.8, XI.3, XI.4, and XI.7 at a private high school in Surakarta. The sample consisted of 150 students, selected using purposive sampling based on criteria: active students in one private high school in Surakarta, enrolled in Class X.2, X.4, X.5, X.8, XI.3, XI.4, XI.7, from grades 10 and 11, aged 15–17 years. This research employed a quantitative correlational method. Data collection was conducted using closed-ended questionnaires. Instruments included scales measuring online gaming intensity, self-regulation, and self-control. Multiple linear regression analysis was used for data analysis. The results of the study show a significant role of self-regulation and self-control in the intensity of online gaming, thus the major hypothesis is accepted. This study reveals a novelty regarding the positive relationship between self-control, self-regulation, and online gaming intensity. Contrary to the general assumption that self-control suppresses gaming behavior, findings indicate a 'functional gaming' phenomenon where students use self-control to manage high-intensity gaming as a controlled routine. Based on categorization, students’ online gaming intensity, self-regulation, and self-control are classified as moderate. Self-regulation contributes 7.7%, and self-control contributes 90.7%. The remaining 1.5% is influenced by other factors
Pengalaman Remaja Dalam Mengendalikan Stress: Studi Fenomenalogi
Full text linkBackground: Adolescence is a dynamic transitional phase, characterized by biological, psychological, and social changes that can trigger stress. Inability to adapt to these changes can lead to identity crises and maladaptive behavior, including self-harm. Exploring adolescents' experiences related to adjustment during stress is important, because the findings can be used as a basis for nursing therapy. Objective: This study aims to describe adolescents' experiences in adapting to daily life related to stress management. Method: This study uses a qualitative approach with a phenomenological method. Participants consisted of 10 9th grade students at a junior high school selected through purposive sampling technique based on the results of the DASS-42 questionnaire. Data were collected using semi-structured interviews and analyzed using Braun and Clarke Thematic Analysis. Results: This study found five main themes with eleven subthemes, namely students' academic pressure, students' family conflict, students' negative feelings, students' adaptive coping, and students' maladaptive coping. Conclusion: Adolescents' experiences in managing stress is a process influenced by the interaction of various internal and external factors. The strategies implemented include adaptive and maladaptive coping, emphasizing the importance of environmental support and learning emotional management skills for adolescents. Recommendation: Active involvement of families, schools, and health professionals is needed to build a supportive environment, provide education on stress management, and facilitate the implementation of adaptive coping strategies to improve adolescents' ability to deal with emotional distress
Pengaruh Perceived Talent Management dan Perceived Organizational Learning Terhadap Perceived Sustainibility Performance Melalui Peran Mediasi Perceived HR Innovation dan Employee Engagement Pada PT INKA Multi Solusi
No full textThis study aims to analyze the effects of Perceived Talent Management and Perceived Organizational Learning on Perceived Sustainability Performance, by considering the mediating roles of Perceived HR Innovation and Employee Engagement at PT INKA Multi Solusi. The study adopts a quantitative approach with an explanatory research design. Data were collected through the distribution of questionnaires to 500 respondents who are employees of PT INKA Multi Solusi, using a proportionate stratified random sampling technique. Data analysis was conducted using the Partial Least Squares Structural Equation Modeling (PLS-SEM) method with SmartPLS 4.0 software.
The results indicate that Perceived Organizational Learning and Perceived HR Innovation have a positive and significant effect on Perceived Sustainability Performance, whereas Perceived Talent Management does not have a direct effect on Perceived Sustainability Performance. However, Perceived Talent Management positively influences Perceived HR Innovation and Employee Engagement, which subsequently act as mediating variables. Perceived HR Innovation is proven to fully mediate the relationship between Perceived Talent Management and Perceived Sustainability Performance, while Employee Engagement serves as a partial mediator. Overall, these findings emphasize that the success of PT INKA Multi Solusi in enhancing sustainability performance is highly dependent on the organization’s ability to transform learning capabilities and talent management practices into tangible innovations in the human resource domain
Penerapan Prinsip Kehati-hatian Dalam Penerimaan Jaminan Fidusia Atas Benda Milik Pihak Ketiga Pada PT. Bank Perekonomian Rakyat Bank Kredit Kerjasama Grogol (PT. BPR BKK Grogol)
Full text linkCredit in banking activities is a major business activity. Granting credit has a negative impact on financial institutions, namely bad debt, which generally occurs because debtors are unable to meet their obligations. Data released by the Financial Services Authority (OJK) in 2025 shows that the value of bad debt at rural banks (BPR) was quite high, at around 11.91% as of March 2025. This study aims to determine and analyze the application of the principle of prudence in accepting fiduciary guarantees on third-party property at PT BPR BKK Grogol (Perseroda), as well as the obstacles and efforts made. The method used is a juridical-empirical legal study with a descriptive approach, based on the Civil Code, Law Number 42 of 1999 concerning Fiduciary Guarantees, Law Number 10 of 1998 concerning Amendments to Law Number 7 of 1992 concerning Banking, and Law Number 4 of 2023 concerning the Development and Strengthening of the Financial Sector. The results of the study show that PT BPR Grogol has implemented the 5C prudential principle in accepting third-party fiduciary guarantees, but there are obstacles in its implementation
Pertimbangan Hakim Dalam Memutus Perkara Penggelapan (Studi Kasus Putusan PN. Boyolali Nomor 54/PID.B/2025/PN BYL dan Kasus Putusan PN. Pangkalan Balai Nomor 213/PID.B/2023/PN PKB)
No full textThis paper analyzes how judges formulate their considerations when adjudicating offenses of embezzlement committed within official duties. The issue emerges because embezzlement referenced in Article 374 of the Criminal Code is treated as an action that offends professional norms, erodes institutional credibility, and produces considerable monetary damage. This study intends to investigate judicial and extra-judicial elements exhibited in the rulings of Boyolali District Court No. 54/Pid.B/2025/PN Byl and Pangkalan Balai District Court No. 213/Pid.B/2023/PN Pkb, and to discuss the doctrinal understanding of embezzlement in Islamic criminal law. A normative legal methodology is utilized, incorporating statutory interpretation and case-based analysis, along with qualitative procedures for data assessment. Results show that both verdicts considered aggravating elements (financial damage, misuse of entrusted authority) alongside mitigating ones (defendants’ cooperation and regret). The major variation is the use of participation provisions (Article 55) and continuing offenses (Article 64) in the Boyolali decision. From an Islamic legal perspective, khiyānah is treated as Jarimah Ta‘zīr, allowing flexible judicial discretion aimed at ensuring justice (al-‘Adl) and societal improvement (islāh)
Hubungan Antara Karakteristik Personal Dengan Tingkat Stres Pada Remaja Selama Tumbuh Kembang
Full text linkBackground: Adolescence is a transitional phase characterized by various physical, cognitive, emotional, and social changes. These changes often create pressures that can potentially lead to stress. Personal factors such as age and gender are known to influence stress levels, but previous research has not shown clear consistency. Objective: This study aims to determine the relationship between personal characteristics and stress levels in adolescents during their growth and development. Method: This study used a quantitative design with a descriptive correlative approach. The study was conducted at SMP Negeri 1 Kartasura from May to July 2025, involving 62 ninth-grade adolescents as respondents. Respondents were selected using a random sampling technique convenience samplingwith the criteria of being between 11 and 21 years old, having no history of significant mental health disorders, currently attending formal education, and willing to participate after signing an informed consent. The instruments used consisted of a demographic questionnaire covering age and gender as well as a questionnaireDepression Anxiety Stress Scale(DASS-42) on the stress subscale. To measure stress levels in adolescents, this study used the DASS-42 instrument on the stress subscale, which has undergone validity and reliability testing. The test results indicated a validity value for the stress subvariable of r = 0.791. Furthermore, the reliability test of the same DASS-42 instrument showed a Cronbach's alpha value of 0.981. Data analysis in this study was conducted using theChi-Squarewith a significance level of 0.05. Results: The study results indicated that the majority of respondents were aged 15-16 (59.7%) and female (53.2%). The highest stress level was moderate (40.3%), followed by no stress (38.7%), and mild stress (21.3%). The analysis showed a significant relationship between age and stress levels (p=0.011) and gender and stress levels (p=0.004). Conclusion: The results of this study indicate that there is a relationship between personal characteristics and stress levels in adolescents during their growth and development
Pengaruh Penggunaan Bahan Bakar Ron 92, 95 dan 98 Terhadap Prestasi Mesin dan Emisi Gas Buang Pada Motor Otto
Full text linkThe transportation sector is the largest contributor to greenhouse gas emissions. Selecting a fuel that matches the engine compression ratio is crucial for optimizing performance and reducing emissions. This study analyzes the effect of RON 92, RON 95, and RON 98 fuels on engine performance and exhaust emissions in gasoline motorcycle engines. This test aims to analyze the use of RON 92, 95, and 98 fuels on engine performance and exhaust emissions. The results show that RON 92 produces the best performance with a maximum torque of 20.81 Nm, a power of
6.37 kW, and the lowest specific fuel consumption of 0.096 kg/kWh. In terms of exhaust emissions, RON 95 excels with the lowest HC (51 ppm) and CO (0.12%) levels, as well as the highest CO₂ (4.37%). The results of GC-MS analysis on gasoline samples successfully identified 76 compounds, which can be grouped into
53 aromatic compounds, 6 paraffins, 8 olefins, and 14 minor/oxygenate compounds. It was concluded that for the gasoline engine used, RON 92 is the most optimal choice
Tinjauan Hukum Terhadap Ujaran Kebencian (Hate Speech) Kepada Pemimpin Negara Berdasarkan Undang-Undang Informasi dan Transaksi Elektronik Nomor 1 Tahun 2024
Full text linkThis study examines the enforcement of laws against acts of hate speech directed at state leaders based on the provisions of Law Number 1 of 2024 on Electronic Information and Transactions (ITE Law). The increasing spread of hate speech on social media highlights the existence of legal protection for state leaders as symbols of honor and national stability, while still taking into account the public’s right to express their opinions. This research employs a normative legal method with a statutory approach, utilizing primary legal materials such as the ITE Law, the Criminal Code, and the Human Rights Law, as well as secondary legal materials including relevant literature and journals. The results of this study indicate that Article 27A in conjunction with Article 45 paragraph (3) and/or Article 45A paragraph (2) of the ITE Law serves as the legal basis for taking action against hate speech targeting state leaders. Nevertheless, the application of these articles still faces challenges, such as differing interpretations with the potential for abuse of authority, compounded by the low level of digital literacy among the public. Therefore, law enforcement needs to be carried out fairly, proportionally, and in adherence to democratic principles to avoid imposing restrictions on freedom of expression in the public sphere