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Evaluation of synthetic‐gene recombinant LipL32 antigen for IgM ELISA detection of Leptospira infection Widiastuti, Dyah; Paramita, Dewi Kartikawati; Murwanti, Retno; Kusrini, Ina; Wijayanti, Nastiti; Haryanto, Aris
Indonesian Journal of Biotechnology Vol 30, No 4 (2025)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijbiotech.111102

Abstract

Leptospirosis presents with nonspecific clinical features and requires time‐consuming laboratory tests for gold standard diagnosis. This study aims to design and characterize the recombinant LipL32 from synthetic gene and assess its performance as an antigen for detecting leptospirosis. The antigen was developed by cloning the LipL32 gene conserved portion of Leptospira interrogans serovar Icterohaemorrhagiae strain Langkawi. The immunoinformatic was used to characterize the developed rLipL32. Western blot results using anti‐histidine revealed a band of rLipL32 protein at ~40 kDa. Subsequently, it was used to examine the IgM antibody on human sera by using ELISA. The IgM‐LipL32 ELISA was evaluated using 67‐positive and 25‐negative sera and compared with a commercial ELISA. With a cut‐off value of 0.8, it showed 85.7% sensitivity, 83.3% specificity, a 48% positive prediction value (PPV), and 97% negative prediction value (NPV), indicating modest performance compared to existing commercial kits. The rLipL32 is a potential antigen for detecting IgM using ELISA; however, for use in low incidence areas, a confirmation test is crucial.
Psychometric Scale of Tax Compliance Potential Clusters of Prospective Taxpayers Probowulan, Diyah; Murwanti, Retno
Jurnal Akuntansi dan Perpajakan Vol. 11 No. 2 (2025): September 2025
Publisher : University of Merdeka Malang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.26905/ap.v11i2.16248

Abstract

This study explores the potential for enhancing tax compliance among prospective taxpayers in Indonesia by developing a psychometric scale that measures psychological factors influencing compliance behaviour. The research was conducted at the University of Muhammadiyah Jember with 225 Accounting Study Program students, who were selected purposively because they represent a relevant group of future taxpayers with foundational knowledge of taxation and financial literacy, making them an appropriate context for examining tax compliance potential. Using a quantitative approach and a structured questionnaire, the study measured intelligence, personality, and skills as independent variables, with tax compliance potential (PTC) as the dependent variable. The findings indicate that intelligence and personality do not have a significant effect on tax compliance potential, whereas skills show a strong positive correlation and significant influence, suggesting that practical competencies in tax administration and the use of tax-related technology are crucial for improving compliance among prospective taxpayers. These results are closely linked to contemporary tax compliance issues in Indonesia, where administrative capability and digital literacy are increasingly important in supporting effective tax systems. By situating the research within an educational setting and aligning the methodological choices with the characteristics of the respondents, this study contributes to a deeper understanding of tax compliance behavior through a psychometric framework. It underscores the importance of a holistic approach to tax education that not only considers individual traits but also emphasizes skill development, social norms, and curriculum-based interventions to strengthen future taxpayers’ compliance behavior.
Co-Authors Abdul Rohman Adam Hermawan Agung Endro Nugroho Agung Endro Nugroho Ahmad Marzuki Alexxander, . Alexxander, . Amalia, Latifa Amilia Amilia, Amilia Anami Riastri Andayana Puspitasari Gani Andayana Puspitasari Gani Andayana Puspitasari Gani Annisa, Siti Nur Anselma Ivanawati Arief Nurrochmad Arief Nurrochmad Arief Nurrochmad Arief Nurrochmad Arief Rahman Hakim Arifka, Vigha Ilmanafi Aris Haryanto Ariska Deffy Anggarany, Ariska Deffy Ashfannada, Nuqya Asri Mega Putri Azizah Amin Azizah, Ulfah Laily Azmi Rahmadani Bambang Sulistiyo Ari Sudarmanto Bani Adlina Shabrina Bayu Irawan, Muhamad Bayu Prio Septiantoro Beni Lestari Budastra, Wayan Cintya Ganes Cahyo Nurani, Sekar Cindy Puspita Sari Devina Martina Devita Anggraeni Devita Anggraeni Devyanto Hadi Triutomo Dewi Kartikawati Paramita Dhania Novitasari Dhirgo Adji Dhirgo Adji Diana Rachma Ningsih Dwi Brilyani Sandy Dwi Salim, Rozin Dyah Afritasari Dyah Aryani Perwitasari Dyah Widiastuti Dyaningtyas Dewi Pamungkas Putri Edy Meiyanto Edy Meiyanto Edy Meiyanto Edy Meiyanto Edy Meiyanto Edy Meiyanto Effendi, Adha Maula Erna Prawita Setyowati Erna Prawita Setyowati Fikriansyah Fikriansyah Fita Rahmawati Fitri, Dafina Aisya Fitriana Hayyu Arifah Gagas Pradani Nur Ilmawati Gani, Andayana Puspitasari Ginna Zabrina Hayati, Farida Hendri Wasito Herwandhani Putri Hidayah, Alifia Brilliani Hilyatul Fadliyah I Gusti Ngurah Agung Dewantara Putra Ida Ayu Putu Sri Widnyani Idlohatud Dilalah Ika Puspita Sari Illian, Didi Nurhadi Imono Argo Donatus, Imono Argo Ina Kusrini Iren Wati Siahaan Jenie, Riris Istighfari Juang Juansa Khafi, Muhammad Khasanah, Aisyah Nur Khoerul Anwar Kustanto, Satya Prima Layung Sekar Sih Wikanthi Ledi, Ledi Klarismawati Lodyta Nawang Tika lubis, muhammad fauzan Lukman Hakim Luthfiyyah, Annisa Tiara Maharani, Astrid Martien , Ronny Mentari Widiastuti Miftahus Sa'adah Muharom, Luthfi Ali Mustofa Mustofa Naisbitt Iman Hanif, Naisbitt Iman Nanang Fakhrudin, Nanang Nanda Saifullah Sulaiman, Teuku Nastiti Wijayanti Ngurah Agung Dewantara Putra, I Gusti Nindi Wulandari Nindya Budiana Putri Nindya Budiana Putri Ningsih, Diana Rachma Norita Citra Yuliarti, Norita Citra Novrizal Abdi Sahid , Muhammad Nunung Yuniarti Nursani, Rabila Nurul Mukhlisa Pratiwi, Rima Dwi Prawitasari, Saptya Prisnu Tirtanirmala Probowulan, Diyah Purnomo, Kurnia Rahayu Purwantiningsih Purwantiningsih Rahmawati, Desty Restia Rahmawaty Rachmady Rahmayani, Almira Retno S. Sudibyo Retno Sunarminingsih Sudibyo Riandari , Teti Mariam Rima Munawaroh Riris Istighfari Jenie Risa Umari Yuli Aliviyanti Ritmaleni, Ritmaleni Rizkita, Anggraini Ihza Rohmad Yudi Utomo Rohman, Abdul Roissinta, Agnesca Rommy Sagala, Reynelda Juliani Sardjiman . Sari Haryanti Sari Haryanti Sari, Laras Ratna Shofa Annur Siswadi Siswadi Sri Susilowati Sri Tasminatun Sri Wahdaningsih Subagus Wahyuono Sudarsono Sudarsono Sugeng Riyanto Sugiyanto . Sugiyanto . Sulaiman, T.N Saifullah Sumaiyah, Sumaiyah Susi Ari Kristina Suwijiyo Pramono Suwijiyo Pramono Tamhid, Hady Anshory Tampubolon, Keshia Thoriq Ziyad, Thoriq Tiffany, Ghea Rachella Triana Candraningrum Triana Hertiani Triawan Adi Cahyanto Ulfa Afrinurfadhilah Darojati Wahyu Utaminingrum Widya Leontin Susanti Wulandari, Febri Yance Anas Yoce Aprianto Yosi Bayu Murti Yundari, Yundari Zahrotul Ulum Ziana Walidah, Ziana