Jurnal Online Universitas Surabaya
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    PENGARUH KOMPETENSI DAN KEPEMIMPINAN TERHADAP MOTIVASI SERTA DAMPAKNYA PRODUKTIVITAS PEGAWAI PADA DINAS PEKERJAAN UMUM DAN PENATAAN RUANG KABUPATEN OGAN ILIR

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    Abstrak (Abstract) This study aims to determine and prove the Influence of Competence and Leadership on Motivation and Its Impact on Employee Productivity at the Public Works and Spatial Planning Office of Ogan Ilir Regency, both directly and indirectly, the population of this study was all Employees at the Public Works and Spatial Planning Office of Ogan Ilir Regency, totaling 61 Employees as research samples. Data analysis used through the PLS program. The results of this study indicate that Competence has a significant effect on motivation, Leadership has a significant effect on Motivation. Competence does not have a significant effect on Productivity, Leadership does not have a significant effect on Employee Productivity at the Public Works and Spatial Planning Office of Ogan Ilir Regency and Motivation has a significant effect on Employee Productivity at the Public Works and Spatial Planning Office of Ogan Ilir Regency. The R-Square value of the Motivation variable is 0.895, meaning that the Motivation variable can be explained by the Motivation variable (Y) by 89.50% while the remaining 10.50% is explained by other variables. For the R-Square value of Productivity (Z) of 0.998, meaning that the Productivity variable (Z) can be explained by the competency variables (X1) and Leadership (X2) by 99.80% while the remaining 06.00% is explained by other variables.   Keywords: Competence, Leadership, Motivation and Productivit

    Adsorpsi Zat Warna Acid Blue 29 Menggunakan Pristine Multiwalled Carbon Nanotubes

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    Abstract—The increasing pollution of dyes in industrial wastewater has recently attracted attention to obtain effective and efficient dye removal techniques. In this study, pristine multiwalled carbon nanotubes were tested for their performance as adsorbents to remove acid blue 29 dye. Multiwalled carbon nanotubes were synthesized by the catalytic chemical vapor deposition method from liquefied petroleum gas with Fe-Co-Mo/MgO catalyst. Adsorption experiments were carried out in batches by varying the initial concentration of dyes. The purpose of this study was to observe the performance of pristine multiwalled carbon nanotubes to adsorb dyes. In addition, observation of the suitability of the adsorption equilibrium model for this system was also carried out. The results showed that pristine multiwalled carbon nanotubes were proven to be able to remove acid blue 29 dye. The experimental results showed that the percentage of dye removal was higher when the initial concentration of dye in the liquid was lower. The pristine carbon nanotubes used were able to reduce dyes from the liquid by 68.8% in just one process cycle. Adsorption equilibrium stu dy showed that Freundlich equilibrium model is more suitable for this system than Langmuir equilibrium model. The results of this study have shown that multiwalled carbon nanotubes have a very good chance as an adsorbent to remove dyes from industrial wastewater. Keywords: adsorption, carbon nanotubes, equilibrium, model, removal Abstrak—Meningkatnya polusi zat warna pada limbah cair industri akhir-akhir ini telah menarik perhatian untuk mendapatkan teknik penghilangan zat warna tersebut yang bekerja secara efektif dan efisien. Pada penelitian ini pristine multiwalled carbon nanotubes diuji kinerjanya sebagai adsorben untuk menghilangkan zat warna acid blue 29. Multiwalled carbon nanotubes disintesa dengan metode catalytic chemical vapor deposition dari liquified petroleum gas dengan katalis Fe-Co-Mo/MgO. Eksperimen adsorpsi dilakukan secara batch dengan memvariasikan konsentrasi awal zat warna. Tujuan penelitian ini adalah untuk menguji kinerja pristine multiwalled carbon nanotubes tersebut untuk mengadsorpsi zat warna. Disamping itu juga dilakukan uji kesesuaian model kesetimbangan adsorpsi untuk sistem ini. Hasil penelitian menunjukkan bahwa pristine multiwalled carbon nanotubes terbukti bisa menghilangkan zat warna acid blue 29. Hasil eksperimen menunjukkan bahwa persen removal zat warna semakin tinggi ketika kosentrasi awal zat warna dalam cairan semakin rendah. Pristine carbon nanotubes yang digunakan mampu menurunkan zat warna dari cairan sebanyak 68,8% dalam satu siklus proses saja. Studi kesetimbagan adsorpsi menunjukan bahwa model kesetimbangan Freundlich lebih sesuai pada sistem ini dibandingkan kesetimbangan model Langmuir. Hasil penelitian ini telah menunjukkan bahwa multiwalled carbon nanotubes memiliki peluang yang sangat bagus sebagai adsorben untuk menghilangkan zat warna dari limbah cair industri. Kata kunci: adsorpsi, carbon nanotubes, kesetimbangan, model, remova

    Efektivitas Sari Katuk dan Tomat terhadap Berat Badan dan Persen Lemak Tubuh Siswi Overweight

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    Abstract—Overweight is a condition of excessive fat accumulation that results in excess body weight, which can affect health. Overweight in adolescents is a major health problem in society in both developed and developing countries. The prevalence of overweight in East Java reached 11.3%, higher than the national data of 8%. The effects of overweight include obesity, chronic diseases, type 2 diabetes mellitus, and others. This research method uses a quasi-experimental design with a pretest-posttest approach with a control group design, which is divided into three groups: the control group, treatment group 1 (P1), and treatment group 2 (P2). The sampling technique used was total sampling with 30 samples. Body weight was measured before and after treatment in all groups. The treatment groups received 150 ml of Katuk and tomato juice in ratios P1 (0.5:0.75) and P2 (1:1.5) for 14 days. The statistical test results showed that the body weight of the treatment group (P1 = 0.019) and (P2 = 0.000), while the body fat percentage (P1 = 0.005) and (P2 = 0.000), which means there is an effect. Giving katuk and tomato leaf juice effectively reduces body weight and fat percentage. Treatment group 2 (P2) as the most effective dose in reducing body weight and body fat percentage in overweight students at MAN 1 Banyuwangi.  Keywords: overweight, katuk leaves, tomato   Abstrak—Overweight merupakan kondisi penimbunan lemak berlebih yang menyebabkan kelebihan berat badan yang menganggu kesehatan. Overweight pada remaja menjadi permasalahan kesehatan yang besar di masyarakat baik di negara maju maupun negara berkembang. Prevalensi kejadian overweight di Jawa Timur mencapai 11,3% lebih tinggi daripada data nasional sebesar 8%. Dampak overweight yaitu menyebabkan obesitas, penyakit kronis, diabetes melitus tipe 2, dan lain-lain. Metode penelitian ini menggunakan quasi experiment dengan pretest-posttest with control group design yang terbagi menjadi tiga kelompok, yaitu kelompok kontrol, kelompok perlakuan 1 (P1) dan kelompok perlakuan 2 (P2). Teknik pengambilan sampel menggunakan teknik total sampling dengan 30 sampel. Semua kelompok diukur berat badan dan persen lemak tubuh sebelum dan setelah diberi perlakuan. Kelompok perlakuan diberikan 150 ml sari katuk dan tomat dengan ratio P1 (0,5:0,75) sedangkan P2 (1:1,5) selama 14 hari. Hasil uji statistik diketahui berat badan kelompok perlakuan (P1 = 0,019) dan (P2 = 0,000) sedangkan persen lemak tubuh (P1 = 0,005) dan (P2 = 0,000) yang berarti terdapat pengaruh. Pemberian sari katuk dan tomat efektif dalam menurunkan berat badan dan persen lemak tubuh. Kelompok perlakuan 2 (P2) menjadi dosis paling efektif dalam menurunkan berat badan dan persen lemak tubuh pada siswi overweight di MAN 1 Banyuwangi. Kata kunci: overweight, katuk, toma

    Effect of Sappanwood Extract (Biancaea sappan (L.) Tod.) on the Elimination Phase of the Pharmacokinetic Profile of Glibenclamide in Wistar Rats (Rattus norvegicus)

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    Type 2 diabetes mellitus is characterized by chronic hyperglycemia, and glibenclamide remains a commonly used oral antidiabetic. Concomitant consumption of sappanwood extract (Biancaea sappan (L.) Tod.) is widespread in Indonesia, raising concerns about herb–drug interactions. This study investigated whether sappanwood modifies the elimination of glibenclamide in Wistar rats. Rats were randomized into three groups: Group I received glibenclamide 10 mg/kg BW; Group II received sappanwood extract 400 mg/kg BW; Group III received the combination. Blood was collected from the retro‐orbital plexus at 20, 22, and 24 h and analyzed by UV–Vis spectrophotometry. Pharmacokinetic parameters were derived by linear regression and residual analysis. In Group I, the terminal log‐linear profile yielded an elimination rate constant (Ke) of 0.1218 h−1 and an elimination half‐life (t1⁄2) of 5.79 h. In Group III, co‐administration with sappanwood produced Ke = 0.0066 h−1 and t1⁄2 = 105 h, indicating a pronounced slowing of glibenclamide elimination relative to control. Group II did not receive glibenclamide and was excluded from pharmacokinetic calculations. Sappanwood extract markedly altered glibenclamide disposition, consistent with a pharmacokinetic herb–drug interaction. The findings suggest that bioactive flavonoids (e.g., Brazilin and quercetin derivatives) may inhibit metabolic pathways relevant to glibenclamide clearance, leading to prolonged exposure

    GAYA KEPEMIMPINAN TRANSFORMASIONAL, INNOVATIVE WORK BEHAVIOR PEKERJA MUDAH SEKTOR RETAIL YANG DIMEDIASI KNOWLEDGE SHARING

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    Abstract—The Innovative Work Behavior (IWB) exhibited by fresh graduate employees is crucial for companies as a strategy for success in today's competitive business environment. IWB can be influenced by transformational leadership and knowledge sharing. This research aims to examine the relationship between transformational leadership and Innovative Work Behavior (IWB) among fresh graduate employees in the retail industry. This study also tests the mediating role of knowledge sharing in this relationship. The research employs a quantitative method with accidental sampling involving 104 respondents of fresh graduate workers. The study utilizes the Innovative Work Behavior Scale (IWBS), Multifactor Leadership Questionnaire 5x (MLQ 5x), and Knowledge Management Scan (KMS) as measurement tools. Data is collected through questionnaires and analyzed using regression analysis. The findings of the study reveal a positive relationship between transformational leadership and Innovative Work Behavior (IWB). The study also confirms that knowledge sharing plays a significant mediating role (p < 0.05) in this relationship. The implications of these findings are valuable for the retail industry in formulating strategies to enhance the innovative work behavior of new graduate employees. The role of knowledge sharing as a mediator in this study is partial in connecting transformational leadership and Innovative Work Behavior (IWB) (z= 5.731; p=0.001). Hypothesis testing supports previous research findings, confirming that transformational leadership supports the practice of knowledge sharing (KS) and Innovative Work Behavior (IWB) in the workplace. Thus, this study has both theoretical and practical benefits for universities, employees, and company leaders in the retail sector. Keywords: transformational leadership, innovative work behavior (iwb), fresh graduate, retail & fmcg, knowledge sharing   Abstrak—Penelitian Innovative Work Behavior (IWB) yang dimiliki oleh pekerja fresh graduates dibutuhkan oleh perusahaan sebagai strategi keberhasilan persaingan kompetitif pada era saat ini. Innovative Work Behavior sendiri dapat dipengaruhi oleh gaya kepemimpinan transformasional dan knowledge sharing. Penelitian ini bertujuan untuk menguji hubungan antara kepemimpinan transformasional dan innovative work behavior (IWB) pada karyawan fresh graduates di industri retail. Studi ini juga menguji peran mediasi knowledge sharing dalam hubungan tersebut. Penelitian ini dilakukan dengan metode kuantitatif dengan accidental sampling yang melibatkan 104 responden pekerja fresh graduates. Penelitian dilakukan dengan alat ukur Innovative Work Behavior Scale (IWBS), Multifactor Leadership Questionnaire 5x (MLQ 5x), dan Knowledge Management Scan (KMS). Data dikumpulkan melalui kuesioner dan dianalisis dengan analisis regresi . Temuan penelitian menunjukkan hubungan positif antara kepemimpinan transformasional dan innovative work behavior (IWB). Studi ini juga mengkonfirmasi bahwa knowledge sharing berperan sebagai mediator yang signifikan (p <0,05) dalam hubungan tersebut. Implikasi temuan ini berguna bagi industri retail untuk merumuskan strategi meningkatkan perilaku kerja inovatif karyawan baru lulus. Peran knowledge sharing sebagai mediator pada penelitian ini bersifat parsial dalam menghubungkan gaya kepemimpinan transformasional dan innovative work behavior (IWB) (z= 5,731 ; p=0,001). Uji hipotesis mendukung temuan penelitian sebelumnya, mengonfirmasi bahwa kepemimpinan transformasional mendukung praktik knowledge sharing (KS) dan innovative work behavior (IWB) di tempat kerja, sehingga memiliki manfaat teoritis dan praktis bagi universitas, pekerja, atasan perusahaan sektor retail. Kata kunci: transformational leadership, innovative work behavior(iwb), fresh graduate, retail & fmcg, knowledge sharin

    Thin Layer Chromatography (TLC) Fingerprint Analysis of Moringa oleifera Leaves Extract

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    Moringa oleifera is known to be rich in nutrients and phytochemicals. M.oleifera is also widely used for herbal medicine and functional food. Fingerprint profiling is one of the methods used to determine the quality and authenticity of M.oleifera leaves and prevent counterfeiting. The study aimed was to determine optimal chromatographic parameters (stationary and mobile phases, blot volume, and detection method) capable to generating the highest number of bands with good separation. The method used was Thin Layer Chromatography (TLC), accompanied by stability testing and precision testing. The results showed that fingerprint profile of M. oleifera leaves, created using the mobile phase toluene: ethyl acetate: methanol: formic acid (7:2:1:0.2), stationary phase TLC plate with silica gel 60 F254. Test solution was 70% ethanol viscous extract of M. oleifera leaves, dissolved in methanol with a blotting volume of 5μl, observed in UV 366 nm and obtained eight bands. Stability and precision testing of the TLC condition optimization method showed that the analyte was stable on the TLC plate and in solution. The analyte also showed stability results during the chromatography process, and the repeatability and intermediate precision were met the criteria. The TLC fingerprint analysis method with chromatographic conditions optimized in this study can be used as one of the quality control methods of M. oleifera leaf raw materials

    Pengaruh kualitas audit, audit tenure dan auditor switching terhadap opini audit going concern

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    Purpose – This study aims to examine the effect of audit quality, audit tenure, and auditor switching on going concern audit opinions in Indonesian state-owned enterprises (SOEs), with company size as a moderating variable. Methods – A purposive sampling technique was used to select 145 observations from 30 SOEs between 2019 and 2023. Logistic regression analysis was conducted using SPSS version 25. Findings - The results indicate that audit quality negatively affects the issuance of going concern opinions. Company size significantly moderates the relationship between audit quality and going concern opinions. However, audit tenure and auditor switching do not have a significant impact. Implications - These findings provide insights for management to enhance performance to reduce the risk of receiving going concern opinions, and for auditors to maintain independence and transparent communication during audits. Originality - This research introduces company size as a moderating variable in the relationship between auditor-related factors and going concern audit opinions, specifically in the context of SOE

    ANALISIS PENGARUH VARIASI POSISI BATERAI DAN FORMASI PENUMPANG TERHADAP KESTABILAN DINAMIS KENDARAAN LISTRIK CEVI-C1

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    Abstract—Vehicle dynamic stability is influenced by many factors, but the main influencing factor is distribution of mass within the vehicle. Previous battery position of CEVI-C1 was located in the front and rear compartments. After being reconditioned, the battery position is located in the rear compartment only. There is no prior research on the effect of changes in battery position and passenger formation on the dynamic stability of CEVI-C1. Therefore, a dynamic stability analysis of CEVI-C1 is needed. The dynamic stability of CEVI-C1 is assessed through the vehicle's directional behavior when cornering. This behavior can be determined through several analyzes, which is slip, skid, and roll analysis. The results of the analysis show that CEVI-C1 tends to understeer in all variations. The results of CEVI-C1 skid analysis show that the average maximum vehicle speed in all variations of battery position and passenger formation has a value of 52 km/h. In the roll analysis, the battery position in the middle and front compartments has a maximum speed value of 72 km/h, while the battery position in the rear compartment has a value of 55 km/h. This difference is due to different vertical position of the vehicle's center of mass (CG). From the results of slip, skid, and roll analysis, it can be concluded that the battery position in the front compartment of CEVI-C1 has a better dynamic stability value than other compartments. Keywords: battery position, electric vehicle, passenger formation, roll, skid   Abstrak—Kestabilan dinamis sebuah kendaraan dipengaruhi oleh banyak hal, namun pengaruh utama kestabilan ini adalah distribusi massa dalam kendaraan. Posisi Baterai CEVI-C1 sebelumnya terletak pada kompartemen depan dan belakang. Setelah direkondisi, posisi baterai terletak pada kompartemen belakang saja. Belum ada penelitian yang meneliti tentang pengaruh perubahan posisi baterai dan formasi penumpang terhadap kestabilan dinamis CEVI-C1. Oleh karena itu diperlukan analisis kestabilan dinamis pada CEVI-C1. Analisis kestabilan dinamis CEVI-C1 dinilai melalui perilaku arah kendaraan ketika berbelok. Perilaku ini dapat diketahui melalui beberapa analisis, yaitu analisis slip, skid, dan roll. Hasil analisis menunjukkan bahwa CEVI-C1 cenderung berperilaku understeer pada semua variasi. Hasil analisis skid CEVI-C1 menunjukkan bahwa rata-rata kecepatan maksimum kendaraan dalam semua variasi posisi baterai dan formasi penumpang memiliki nilai 52km/jam. Pada analisis roll, posisi baterai pada kompartemen tengah dan depan memiliki nilai kecepatan maksimum 72 km/jam, sedangkan posisi baterai pada kompartemen belakang memiliki nilai 55km/jam. Perbedaan nilai ini diakibatkan posisi vertikal pusat massa kendaraan (CG) yang berbeda. Dari hasil analisis slip, skid, dan roll, dapat disimpulkan bahwa posisi baterai pada kompartemen depan CEVI-C1 memiliki nilai kestabilan dinamis yang lebih baik daripada kompartemen lainnya. Kata Kunci: formasi penumpang, mobil listrik, posisi baterai, roll, ski

    Penjaminan SHMSRS pada Hak Guna Bangunan di Atas Tanah Hak Pengelolaan oleh Orang Asing

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    In realizing a welfare state, Indonesia’s government must manage land as part of the earth properly. As is known, land is fixed and does not increase in area meanwhile the population continues to increase. Therefore, it’s necessary to build and arrange flats. In normative juridical terms, flats can be built on HGB over HPL land. Ownership of the flat is proven by SHMSRS, furthermore SHMSRS owners are only those who are designated as holders of land rights. In accordance with UUPA, holders of HGB over HPL land consist of Indonesian citizens and Indonesian legal entities. This regulation of the UUPA is a reference for the Condominium Law and the Mortgage Rights Law. The problem is that with the promulgation of the UUCK, foreigners are regulated to have the right to own SHMSRS on HGB over HPL land, giving rise to conflicting norms between UUCK and UUPA, the Condominium Law, the Mortgage Rights Law, and the principle of nationality that all applies in Indonesia. This research is based on normative research methods as well as statutory regulations and conceptual approaches with data sources and types of primary and secondary legal materials. Through the research, it shows that these conflicting norms result in the absence of legal certainty regarding the ownership of flats in HGB over HPL land which mutatis mutandis creates legal uncertainty in SHMSRS guarantees needs to be solved by using the legal principle. Nevertheless, in fact, there is still legality in guaranteeing SHMSRS on HGB over HPL by foreigners

    ANALISIS PERENCANAAN PAJAK PENGHASILAN PASAL 21 SEBELUM DAN SESUDAH BERLAKUNYA PMK NOMOR 66 TAHUN 2023 PADA PT CPN

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    Tax planning is an effort to reduce or minimize the tax burden that must be paid to the state, ensuring that the tax paid does not exceed the actual amount while still complying with applicable tax regulations, hence legal. The change in regulations, namely PMK Number 66 of 2023, is interesting to analyse because it directly impacts employees and companies, particularly in designing more strategic and efficient tax planning strategies. This study aims to analyse the planning of Income Tax (PPh) Article 21 at PT CPN before and after the implementation of the Minister of Finance Regulation (PMK) Number 66 of 2023. The method used in this research is a descriptive method with a qualitative approach at PT CPN using observation and documentation techniques. The data analysed includes financial reports, tax documents, and interviews with related parties at PT CPN. This analysis aims to evaluate the impact of the new regulation on the company's tax burden and identify changes in the strategies implemented. The results of the study show that the Minister of Finance Regulation (PMK) Number 66 of 2023 has a significant impact on PT CPN's tax planning. This research found that tax planning conducted after the implementation of the Minister of Finance Regulation (PMK) Number 66 of 2023 is more efficient. Additionally, this research identifies the challenges faced by PT CPN in adjusting to the new regulation and provides recommendations for optimizing future tax planning

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