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All Journal Indonesian Journal of Anesthesiology and Reanimation (IJAR) Jurnal Polimesin Dharmahita: Journal of Community Service and Development
Darmawan, Haris
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Humanities Automotive Engineering Control & Systems Engineering Engineering Environmental Science Materials Science & Nanotechnology Mechanical Engineering Medicine & Pharmacology Social Sciences

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Utilization of the Potential of Krandegan Village, Paninggaran, through the KKN of UIN Gus Dur Pekalongan Students: Pendayagunaan Potensi Desa Krandegan, Paninggaran, melalui KKN Mahasiswa UIN Gus Dur Pekalongan Maulida Salsabila, Zita; Khoerul Mutakin, Muhamad; Fatimatuzzahro, Fatimatuzzahro; Hilman Zabidi, Arif; Safiani, Indri; Dimyathi Amin, Ahmad; Amalia Rahmah, Novita; Darmawan, Haris; Syekhira, Nabila; M. Munip, M. Munip; Nur Anisah, Dyah; Eka Sulistiya, Aryani
Dharmahita: Journal of Community Service and Development Dharmahita Vol 1, No 1, 2024
Publisher : Universitas Islam Negeri K.H. Abdurrahman Wahid Pekalongan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28918/dharmahita.v1i1.7361

Abstract

Field Study and Community Service (KKN) are extracurricular activities that integrate the core aspects of higher education: teaching, research, and community service. The KKN 58 Group 16 from UIN K.H. Abdurrahman Wahid Pekalongan conducted a 45-day community service program in Krandegan Village with the aim of leveraging local potential to achieve sustainable development. The group employed a combination of explanations, discussions, and direct practice methods to engage with the community. The program proceeded smoothly, largely due to the collaborative efforts of group members and the supportive village environment. The active enthusiasm of the local community further facilitated the implementation of various activities and work programs. The successful execution of these programs not only provided tangible benefits to Krandegan Village but also offered valuable learning experiences for the students, including the importance of effective communication, teamwork, and community engagement. These insights are expected to enhance future KKN activities and contribute to community development efforts.
Combined Spinal-Epidural Anesthesia with Isobaric Ropivacaine 0.375% for Inguinal Hernia Surgery in a Heart Failure Patient with Ejection Fraction of 36% Rayyan, Muhammad Isra Rafidin; Ghiffari, Salman Sultan; Hariyanto, Achmad; Winarso, Achmad Wahib Wahju; Darmawan, Haris; Fardhani, Ichlasul Mahdi
Indonesian Journal of Anesthesiology and Reanimation Vol. 6 No. 1 (2024): Indonesian Journal of Anesthesiology and Reanimation (IJAR)
Publisher : Faculty of Medicine-Universitas Airlangga

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.20473/ijar.V6I12024.50-57

Abstract

Introduction: Heart failure is a condition caused by myocardial abnormalities that interfere with the fulfillment of the body's metabolism. It is one of the primary causes of high perioperative morbidity and mortality rates, and its management presents a challenge to anesthesiologists. Objective: To demonstrate combined spinal-epidural anesthesia with isobaric ropivacaine 0.375% for inguinal hernia repair surgery in a heart failure patient with an ejection fraction of 36%. Case Report: A 53-year-old man presented with a complaint of a lump on his left groin accompanied by pain with a visual analog scale (VAS) pain score of 3/10 three days before admission. The patient was also known to often complain of shortness of breath and chest palpitations when lying down at night and during strenuous activity. Based on the examination, the patient was then diagnosed with reducible left lateral inguinal hernia and heart failure with LVEF 36%. Subsequently, the patient was scheduled for elective herniotomy-hernioraphy surgery under low-dose combined spinal-epidural anesthesia. Spinal anesthesia was performed with isobaric ropivacaine 0.375% and fentanyl 25 μg in a total volume of 3.5 ml at the L3-L4 intervertebral space. Epidural anesthesia was performed with isobaric ropivacaine 0.375% and fentanyl 25 μg in a total volume of 8 ml at the L2-L3 intervertebral space. After 10 minutes, the sensory block reached the T6 level, but the motor block was only partial (Bromage 1). A continuous infusion of isobaric ropivacaine 0.1875% 1 ml/hour was administered through the epidural catheter to control postoperative pain. During surgery and hospitalization, the patient's hemodynamic condition remained stable. Conclusion: Combined spinal-epidural anesthesia with isobaric ropivacaine 0.375% can provide adequate anesthesia with relatively stable hemodynamics, thus making it safe for inguinal hernia repair surgery in heart failure patients with reduced ejection fraction.
Analysis of Helical Gear Failure in Off-Road 4x4 Gearbox Husaini, Husaini; Darmawan, Haris; Ali, Nurdin -
Jurnal Polimesin Vol 22, No 1 (2024): February
Publisher : Politeknik Negeri Lhokseumawe

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30811/jpl.v22i1.4648

Abstract

Surface failure is evident in helical gear in off-road 4x4 gearbox,requiring the identification ofroot causes.Therefore, this study aimed to explore the factors contributing to helicalgearfailure in off-road 4x4 vehicles. Initially, crack in helical gear wascaused by manufacturing or material defects during production or the heat treatment process, manifesting as inhomogeneities in the microstructure or other imperfections. Crack propagation possibly occurred due to continuous stress during off-road 4x4 usage, influenced by factors such as excessive loads, vibrations, or extreme off-road conditions.The exploration process began with a comprehensive set of analyses, including visual observation, hardness testing, chemical composition analysis, microstructure testing, and stress analysis. Subsequently, the material composition of gear was identified as high-carbon steel meeting AISI 1080 standards. Although the average surface hardness value was 95.49 HRB, which was slightly lower than AISI 1080, the microstructure comprised pearlite and cementite. Surface fracture observations revealedinitial crackthat propagated, leading to brittle fractures. The average stress intensity factor (KI)was alsomeasured 54.65 MPa.m1/2, which surpassed fracture toughness value (KIC) of AISI 1080 steel at 45.5 MPa.m1/2.In conclusion, helical gear failure was directly attributed to the propagation of initial crack, thereby resulting in fractures.
Co-Authors Ali, Nurdin - Amalia Rahmah, Novita Dimyathi Amin, Ahmad Eka Sulistiya, Aryani Fardhani, Ichlasul Mahdi Fatimatuzzahro, Fatimatuzzahro Ghiffari, Salman Sultan Hariyanto, Achmad Hilman Zabidi, Arif Husaini Husaini Khoerul Mutakin, Muhamad M. Munip, M. Munip Maulida Salsabila, Zita Nur Anisah, Dyah Rayyan, Muhammad Isra Rafidin Safiani, Indri Syekhira, Nabila Winarso, Achmad Wahib Wahju