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PENGARUH GAYA KEPEMIMPINAN TRANSFORMASIONAL DAN KOMUNIKASI ORGANISASI TERHADAP KINERJA KARYAWAN DAN ANGGOTA KEPOLISIAN RESOR KOTA PEKANBARU Ramadhan, Putra; Lubis, Evawani Elysa
Jurnal Online Mahasiswa (JOM) Bidang Ilmu Sosial dan Ilmu Politik Vol. 10: Edisi II Juli - Desember 2023
Publisher : Fakultas Ilmu Sosial dan Ilmu Politik Universitas Riau

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The purpose of this research is to find out and analyze the effect of transformational leadership style on employee performance, to know and analyze the effect of organizational communication on employee performance, to know and analyze the influence of transformational leadership style and organizational communication simultaneously on employee performance. This study used explanatory quantitative research methods with sampling techniques in this study using random sampling and using the slovin formula which obtained a total of 85 respondents from 550 population of Employees and Members of the Pekanbaru City Police. The data collection technique uses a questionnaire which is then tested for validity and reliability. The data analysis technique in this study is a simple linear regression test and a determination test that is calculated using the SPSS for windows application. Based on the results of this study, it is known that the influence of transformational leadership style and organizational communication on employee performance is 28.7% while the remaining 71.3% is influenced by other factors. These other factors, one of which is ability which can affect employee performance. Keywords: transformational leadership style, organizational communication, employee performance
IMPROVING STUDENTS VOCABULARY MASTERY THROUGH CHARADES GAME AT SMA NEGERI 1 MAUMERE RAMADHAN, PUTRA; ALINDA, MARTA; ENI , GENOVEVA DUA
EDUCATIONAL : Jurnal Inovasi Pendidikan & Pengajaran Vol. 5 No. 1 (2025)
Publisher : Pusat Pengembangan Pendidikan dan Penelitian Indonesia (P4I)

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.51878/educational.v5i1.4442

Abstract

This research explores the impact of the Charades game on vocabulary mastery among twelfth-grade students at SMA Negeri 1 Maumere. Utilizing a classroom action research design, the research was conducted in two cycles, each comprising planning, action, observation, and reflection stages. The observations findings indicated that students faced challenges in vocabulary acquisition due to monotonous teaching methods that happened during learning process, resulting in low engagement and motivation during English lessons. The implementation of the Charades game aimed to address these issues by creating a more interactive and enjoyable learning environment. The results of this research showed a significant improvement in students' vocabulary scores, with average scores increasing from 52.92 in the pre-test to 71.81 in the final post-test. Additionally, the number of students achieving passing scores were increased. The findings suggest that incorporating engaging activities like Charades can enhance vocabulary learning and foster greater student enthusiasm in language acquisition. ABSTRAKPenelitian ini mengeksplorasi dampak dari permainan tebak kata terhadap penguasaan kosakata di antara siswa kelas dua belas di SMA Negeri 1 Maumere. Dengan menggunakan desain penelitian tindakan kelas, penelitian ini dilakukan dalam dua siklus, yang masing-masing terdiri dari tahap perencanaan, tindakan, observasi, dan refleksi. Temuan observasi menunjukkan bahwa siswa menghadapi tantangan dalam penguasaan kosakata karena metode pengajaran yang monoton, yang mengakibatkan rendahnya keterlibatan dan motivasi selama pelajaran bahasa Inggris. Implementasi permainan tebak gesture bertujuan untuk mengatasi masalah ini dengan menciptakan lingkungan belajar yang lebih interaktif dan menyenangkan. Hasil dari penelitian ini menunjukkan peningkatan yang signifikan pada nilai kosakata siswa, dengan nilai rata-rata meningkat dari 52,92 pada pre-test menjadi 71,81 pada post-test akhir. Selain itu, jumlah siswa yang mencapai nilai kelulusan juga meningkat. Temuan ini menunjukkan bahwa menggabungkan kegiatan yang menarik seperti Tebak gestur dapat meningkatkan pembelajaran kosakata dan menumbuhkan antusiasme siswa yang lebih besar dalam penguasaan bahasa.
Perbandingan Strategi Dollar Cost Averaging dan All-in pada 5 Cryptocurrency Terbesar Tahun 2024 Ramadhan, Putra; Rifansyah, Nor; Rafi, Muhammad Ifnu; Stevano, Gordia
sudo Jurnal Teknik Informatika Vol. 4 No. 2 (2025): Edisi Juni
Publisher : Ilmu Bersama Center

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56211/sudo.v4i2.834

Abstract

Extreme volatility and unpredictable price movements in the cryptocurrency market present significant challenges for investors in selecting optimal investment strategies. In such a dynamic environment, it is crucial to adopt an approach that balances profit potential with risk mitigation. This study compares two algorithm-based investment strategies: Dollar Cost Averaging (DCA), modeled through Dynamic Programming, and the all-in strategy, simulated using the Greedy Algorithm. The analysis focuses on the five largest cryptocurrencies by market capitalization in 2024 Bitcoin (BTC), Ethereum (ETH), Solana (SOL), Binance Coin (BNB), and XRP using monthly price data from January to December 2024. Simulations were conducted with a total capital of IDR 120 million, allocated monthly for DCA and invested fully at the lowest price point for the all-in strategy. The results show that the all-in approach yielded the highest return of 443.74% (XRP), yet carried significantly higher risk due to its dependency on perfect market timing. In contrast, DCA delivered more consistent returns, with a safer way to gain 47,53% (BTC), and offered greater price stability by distributing investments over time. The findings indicate that DCA is more suitable for investors with low to moderate risk tolerance, while the all-in strategy favors high risk tolerant investors with strong market timing skills. This study contributes to the development of algorithmic investment models in the digital asset space and provides practical insights for retail investors seeking to align strategy selection with their individual risk profiles in a highly volatile market.
Acute Anti-Inflammatory Study by Oral Administration of Cherry Leaf (Muntingia Calabura L.) Infusion in Inflammation-induced Wistar Strain White Rats (Rattus Norvegicus) Ramadhan, Putra; Rohmawaty, Enny; Rosdianto, Aziiz Mardanarian
Jurnal Sain Veteriner Vol 43, No 2 (2025): Agustus
Publisher : Faculty of Veterinary Medicine, Universitas Gadjah Mada bekerjasama dengan PB PDHI

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/jsv.92910

Abstract

Inflammation is a response of the body’s defense system in preparation for tissue repair. Acute inflammation is characterized by heat, redness, pain, and formation of edema. Acute inflammation involve the realese of inflammatory mediators. Muntingia calabura is a herbal plant commonly used as an anti-inflammatory medicine containing bioactive coumpounds such as flavonoids, triterpenoids, and alkaloids that can inhibit the regulation of inflammatory mediators. This study aims to determine the anti-inflammatory activity and optimal dosage of M. calabura infusion in addressing acute inflammation in rats. The research method is a laboratory experiment using Wistar strain white rats that divided into 7 treatment groups: normal, negative control, positive control (sodium diclofenac and methylprednisolone), and M. calabura infusion at doses of 150, 300, and 600 mg/kg body weight. Each rats model induced with 1% carrageenan at 0.2 ml intraplantar, the formed edema is measured using a plethysmometer every 30 minutes for the first 3 hour and every 60 minutes for the following 3 hour. The result indicate that M. calabura infusion has acute anti-inflammatory effect on white rats model induced with carrageenan, with the most optimal dose being 600 mg/kg body weight, showing a pattern of anti-inflammatory activity similar to methylprednisolone.