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All Journal Jurnal Redoks International Journal for Educational and Vocational Studies CRJIM (Clinical and Research Journal in Internal Medicine) CHEMTAG Journal of Chemical Engineering
Bakrie, Muhammad
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Chemical Engineering, Chemistry & Bioengineering Education Environmental Science Health Professions Immunology & microbiology Industrial & Manufacturing Engineering Languange, Linguistic, Communication & Media Mathematics Medicine & Pharmacology Nursing Public Health Social Sciences Other

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The Influence of Service Quality, Institutional Reputation, Students’ Satisfaction on Students’ Loyalty in Higher Education Institution Bakrie, Muhammad; Sujanto, Bedjo; Rugaiyah, Rugaiyah
International Journal for Educational and Vocational Studies Vol 1, No 5 (2019): September 2019
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v1i5.1615

Abstract

Research highlights the influence of service quality, institutional reputation, student satisfaction in building student loyalty. Quantitative approach was used with a survey method. The research respondents were 185 students from PGRI University Palembang. Analysis techniques using variance-based structural equation models (SEM) SmartPLS. The results of the study shows that service quality has a significant effect on reputation and student satisfaction, but service quality and student satisfaction have no significant effect on student loyalty. On the contrary, the reputation of an institution has a very significant direct effect on loyalty. Student service quality has a significant indirect effect on student loyalty through the reputation of the institution, this implies that the reputation of the institution carries a relative influence relationship between service quality on student loyalty. These findings can help higher education institutions to make better strategic plans to increase student loyalty.
Pengaruh Baffle Cut Pada Shell dan Tube Heat Exchanger Terhadap Koefisien Perpindahan Panas Menyeluruh & Penurunan Tekanan Al Hakim, Muhammad Iskandar; Bakrie, Muhammad; Rasyidi, Nurlela
Jurnal Redoks Vol. 9 No. 2 (2024): REDOKS JULI - DESEMBER
Publisher : Universitass PGRI Palembang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31851/redoks.v9i2.9089

Abstract

Shell and Tube Heat Exchanger merupakan salah satu peralatan penukar energi panas yang tidak dapat dilepaskan penggunaannya dalam menunjang proses produksi di industri. Perpindahan  panas pada alat penukar panas tipe shell and tube dipengaruhi oleh banyak faktor, salah satunya adalah penggunaan baffle. Mengoptimalkan proses perpindahan panas pada heat exchanger, baffle juga berfungsi sebagai penyangga tube yang ada di dalam shell. Perpindahan  panas  yang optimal sangat  diharapkan  dalam proses pertukaran panas pada peralatan heat exchanger. Penelitian dilakukan untuk mengetahui pengaruh baffle cut terhadap koefisien perpindahan panas dan penurunan tekanan pada heat exchanger. Hasil percobaan yang dilakukan didapatkan bahwa baffle cut pada baffle di shell heat exchanger mempengaruhi nilai koefisien perpindahan panas menyeluruh dan penurunan tekanan pada heat exchanger, untuk baffle cut 3 cm (17,5%) merupakan baffle cut  yang optimum digunakan karena nilai rerata koefisien perpindahan panas menyeluruh yang tinggi jika dibandingkan dengan kedua variasi baffle cut  lainnya sebesar 30,8926 BTU/hr.ft2.F dengan pressure drop di sisi shell dan tube yang masih jauh berada dibawah ambang batas yaitu 0,8969 x 10-3 psi dan 0,1352 x 10-3 psi. Dari penelitian yang telah dilakukan dapat disimpulkan bahwa semakin kecil nilai pressure drop maka semakin besar nilai koefisien perpindahan panas menyeluruh pada heat exchanger, nilai pressure drop jauh berada dibawah ambang batas <10 psi sehingga heat exchanger beroperasi dengan baik, potongan 17,5% merupakan baffle cut yang optimum digunakan karena memiliki nilai koefisien perpindahan panas menyeluruh yang paling tinggi dengan pressure drop yang masih jauh berada dibawah ambang batas.   Kata kunci : Baffle cut, Shell and Tube Heat Exchanger, Perpindahan Panas Menyeluruh, Pressure Drop.    
The Influence of Service Quality, Institutional Reputation, Students Satisfaction on Students Loyalty in Higher Education Institution Bakrie, Muhammad; Sujanto, Bedjo; Rugaiyah, Rugaiyah
International Journal for Educational and Vocational Studies Vol. 1 No. 5 (2019): September 2019
Publisher : Universitas Malikussaleh

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29103/ijevs.v1i5.1615

Abstract

Research highlights the influence of service quality, institutional reputation, student satisfaction in building student loyalty. Quantitative approach was used with a survey method. The research respondents were 185 students from PGRI University Palembang. Analysis techniques using variance-based structural equation models (SEM) SmartPLS. The results of the study shows that service quality has a significant effect on reputation and student satisfaction, but service quality and student satisfaction have no significant effect on student loyalty. On the contrary, the reputation of an institution has a very significant direct effect on loyalty. Student service quality has a significant indirect effect on student loyalty through the reputation of the institution, this implies that the reputation of the institution carries a relative influence relationship between service quality on student loyalty. These findings can help higher education institutions to make better strategic plans to increase student loyalty.
PENGARUH WARNA DINDING ALAT PENGERING EFEK RUMAH KACA TERHADAP PENYIMPANAN PANAS PADA PENGERINGAN IKAN ASIN Wicakhyanto, Ary; Bakrie, Muhammad; Fitriyanti, Reno
CHEMTAG Journal of Chemical Engineering Vol 3, No 2 (2022): CHEMTAG Journal of Chemical Engineering
Publisher : Universitas 17 Agustus 1945 (UNTAG) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.56444/cjce.v3i2.4163

Abstract

Pembuatan ikan asin seringkali masih menggunakan cara lama yaitu penjemuran langsung di bawah sinar matahari yang memakan waktu sekitar 3 hari. iPengeringan idengan iteknik iini tentunya isangat itergantung idengan ikondisi icuaca isaat ipenjemuran. iSaat isuaca icerah penjemuran idapat iberlangsung idengan ibaik, itetapi isebaliknya isaat icuaca imendung iatauibahkan ihujan, ipenjemuran isama isekali itidak idapat idilakukan isehingga iikan imenjadi icepat ibusuk idan imenjadikan ipengurangan iini ikurang iefektif dan kurang higienis setelah nya karena di campur dengan debu dan kotoran. Pengeringan rumah kaca merupakan salah satu metode untuk menghadapi permasalahan yang sering di hadapi. Melalui penelitian ini di ketahui bahwa alat pengering rumah kaca dapat di gunakan untuk proses pengeringan ikan asin dengan penurunan kadar air hingga 28% pada pengeringan selama tujuh jam dan pengeringan dan terus berjalan meskipun kondisi cuaca tidak stabil.
Correlation Between Serum Testosterone Levels and CD4 T Lymphocyte Counts in Naive HIV-Infected Men at dr. Mohammad Hoesin General Hospital Palembang Fahrenheit, Fahrenheit; Kusnadi, Yulianto; Hudari, Harun; Bahar, Erial; Shahab, Alwi; Anggraini, Ratna Maila Dewi; Permata, Mega; Salim, Nelda Aprilia; Yuniza; Bakrie, Muhammad
Clinical and Research Journal in Internal Medicine Vol. 6 No. 2 (2025): Volume 6 No 2, November 2025
Publisher : Universitas Brawijaya

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21776/ub.crjim.2025.006.02.07

Abstract

Background: HIV infection often leads to endocrine complications, including hypogonadism which characterized by low serum testosterone, potentially affects quality of life and contributes to metabolic issues, such as muscle weakness, depression, osteoporosis, and cardiovascular disease. Some studies have indicated a connection between testosterone levels and CD4 T lymphocyte counts.   Aim: To evaluate the correlation between total serum testosterone levels and CD4 T lymphocyte counts in naive HIV-infected men. Methods: A cross-sectional analitycal study was conducted at Dr. Mohammad Hoesin General Hospital, Palembang, from April to October 2024. Involving 64 naive HIV-infected men. Total serum testosterone and CD4 T cell counts were measured and analyzed. Results: Participants mean age is 36.52 ± 11.03 years with BMI of 19.52 ± 3.71 kg/m². Most subject (62.5%) are reported men who had sex with other men. Poor sleep quality was found in 81%, mild depressive symptoms in 38.1%, and mild erectile dysfunction in 28.6%. Hypogonadism occurred in 32.8% of subjects (28.1% secondary and 4.7% primary). Mean number of testosterone level was 446.75 ± 260.95 ng/dL, with a median CD4 count of 23.5 cells/µL. A significant positive correlation was observed between testosterone levels and CD4 counts (r = 0.313; p = 0.012) although testosterone levels did not significantly differ across HIV clinical stages (p = 0.464). Conclusion: There is a significant positive correlation between serum testosterone levels and CD4 T lymphocyte counts in naive HIV-infected men. Hormonal disturbances may arise in early infection. Hence, testosterone assessment is recommended during the initial evaluation on HIV patients.
Co-Authors Al Hakim, Muhammad Iskandar Anggraini, Ratna Maila Dewi Bedjo Sujanto, Bedjo Erial Bahar, Erial Fahrenheit, Fahrenheit Fitriyanti, Reno Hudari, Harun Nelda Aprilia Salim Permata, Mega Rasyidi, Nurlela Rugaiyah Shahab, Alwi Wicakhyanto, Ary Yulianto kusnadi Yuniza