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A Validated TLC-Densitometric Analysis of Curcumin in Eight Important Zingiberaceae Rhizomes and Their ATR-FTIR Fingerprint Profiles
No full textZingiberaceae family is highly significant, particularly in the food and medicinal sectors. Some of them are characterized by yellow-orange to pale yellow color due to their curcuminoid (curcumin, demethoxycurcumin, and bisdemethoxycurcumin) content leading to misidentification. Such misidentifications can result in reduced efficacy, compromised safety, and inaccuracies in quality control, highlighting the need for precise differentiation methods. This research aimed to differentiate eight Zingiberaceae rhizomes—Curcuma longa, Curcuma xanthorrhiza, Curcuma mangga, Curcuma heyneana, Curcuma zedoaria, Curcuma aeruginosa, Zingiber montanum, and Zingiber aromaticum—using curcuminoid profiles and curcumin content through TLC-densitometry and ATR-FTIR fingerprints combined with chemometrics. Thin-layer chromatography (TLC) employed silica gel 60 F254 and chloroform:methanol (40:1, v/v) solvent system, confirming method specificity with identical UV–Vis spectra for standards and samples (λmax = 422 nm). The method demonstrated high linearity (r2 = 0.9655) for curcumin in the range of 200–1400 ng/band, with detection and quantification limits of 199.35 and 604.08 ng/band, respectively, alongside excellent precision and accuracy. Curcuminoids were undetected in C. zedoaria and C. aeruginosa, while the others exhibited varying curcumin concentrations, the highest in C. longa. ATR-FTIR combined with principal component analysis (PCA) and cluster analysis (CA) successfully differentiated all eight Zingiberaceae rhizomes as distinct entities. Each rhizome was clearly identified without forming any overlapping clusters. In conclusion, the ATR-FTIR method proved more sensitive than TLC, highlighting the need for multiple analytical approaches to accurately distinguish these rhizomes. These findings provide a critical foundation for improving quality control, ensuring the authenticity of raw materials, and supporting their safe and effective use in both traditional and modern applications
Are Vocational High School StudentsReady for Global Competitiveness?: Self-Perception onTheirEnglish Proficiency
Get PDFThe studyinvestigates the English proficiency of vocational high school students in Surabaya, East Java, Indonesia, employing a descriptive qualitative method and survey research design. With a total of 472 respondents from five public vocational high schools, the study reveals a predominant focus on Class XII students (99.6%), indicative of readiness for career pursuits or higher education. Notably, 60% major in social science and 40% in technological science. A crucial aspect of the research lies in its exploration of the self-perception of English proficiency among respondents, where findings indicate that 68.6% perceive speaking as their weakestskill, followed by writing (7%), reading (8.1%), and listening (16.3%). The analysis underscores the pronounced inadequacy in speaking proficiency among vocational high school students in Surabaya, East Java, Indonesia, a critical skill for global competitiveness in today's interconnected job market. Addressing these deficiencies is imperative to prepare vocational high school respondents, for global competitiveness, aligning with insights regarding the integration of speaking activities to enhance communication skills
Can Forensic Accounting as a 'Science' Prevent Fraud?; Implications for the Undergraduate Accounting Curriculum in Indonesia
Get PDFThis article discusses forensic accounting as a branch of accounting science that has fulfilled the criteria of
a scientific discipline, with a clear object of study, systematic approach, measurable methods of analysis,
and real contributions to solving practical problems, particularly in the prevention and detection of fraud.
Forensic accounting is no longer merely a supplementary practice, but an applied science that integrates
accounting, legal understanding, and investigative techniques based on data and scientific logic. Therefore,
this article emphasizes the urgency of transforming higher education, especially the undergraduate
accounting curriculum, by making forensic accounting a compulsory course, not an elective. This step is
essential to equip students with critical thinking skills, investigative analysis capabilities, and sensitivity to
irregularities in financial information. By formally integrating forensic accounting into the curriculum,
higher education can produce graduates who are not only technically competent but also actively contribute
to accelerating fraud prevention in the future, shaping accounting professionals who are ethical, critical,
and responsive to the challenges of the digital era
Pharmacy Student Recommendations on Self-Medication for Headaches: A Cross-Sectional Study in Surabaya
Get PDFAssessing students’ ability to provide appropriate recommendations for self-medication requests is key in developing course materials for future pharmacists. Until recently, the number of published articles evaluating the appropriateness of recommendation provided by pharmacy students towards headache cases, as one of the most common symptoms urging people to seek advice from professional healthcare, is still limited. This observational study with cross-sectional design aims to identify the type and appropriateness of recommendation given by pharmacy professional degree students on two types of headache cases, i.e., tension type headache and migraine due to adverse drug reaction (ADR). The students characteristic data, type, and recommendation appropriateness were analyzed descriptively. In total, 86 students were involved in this research (response rate 82.7%) with different recommendation profiles for two different headache cases. The majority of the participants recommended a pharmaceutical product for tension type headache while referral to physicians was advised for migraine due to ADR. The appropriateness analysis findings revealed that students gave more appropriate
recommendations for tension type headache (89.5%) compared to migraine due to ADR (77.9%) case. Therefore, students’ ability to provide relevant recommendations for headaches due to ADR requires further improvement by giving some cases accordingly during the learning process
Mengenal Kejahatan di Bidang Lingkungan Hidup dan Intervensi Hukum Anti Pencucian Uang
No full textBuku ini menyajikan materi mengenai perkembangan terbaru terkait dengan kejahatan di bidang lingkungan hidup, yang sudah sangat mengganggu kehidupan manusia. Kejahatan ini semakin berkembang dan merusak banyak nilai. Salah satunya yang dapat dilakukan adalah dengan melakukan intervensi oleh berbagai aturan hukum yang sudah ada, salah satunya adalah dengan hukum anti pencucian uang. Pelaku kejahatan di bidang lingkungan hidup ini banyak mengambil keuntungan, sehingga harus diintervensi melalui penegakan rezim anti pencucian uang yang selama ini sudah ada
Validation of the Homophobia Scale (HS) Using Rasch Analysis In Indonesia Context
No full textHomophobia remains a significant social issue, negatively affecting LGBTQ+
individuals and communities. Educational interventions are seen as a promising
solution to foster understanding, acceptance, and empathy towards the LGBTQ+ community. This systematic review explores the effectiveness of such interventions in reducing homophobia, drawing from key studies that demonstrate positive impacts. Findings suggest that educational programs can increase knowledge about sexual diversity, promote empathy, and reduce discriminatory behaviours. Despite some limitations, these interventions show potential in creating more inclusive environments, especially when implemented early in educational and community settings. Future research should focus on larger and more diverse samples to strengthen these findings
Studi Literatur: Pengaruh Sietem Pengendalian Internal Klien Terhadap Hasil Audit
No full textSistem Pengendalian Internal (SPI) memegang peran strategis dalam menjamin keandalan laporan keuangan dan kualitas hasil audit eksternal. Penelitian ini bertujuan untuk mengevaluasi pengaruh SPI terhadap hasil audit melalui pendekatan studi literatur. Dengan metode deskriptif kualitatif, peneliti menganalisis 15 jurnal ilmiah nasional dan internasional yang relevan. Hasil kajian menunjukkan bahwa SPI yang efektif tidak hanya memperkuat integritas pelaporan keuangan dan efisiensi operasional, tetapi juga meningkatkan keyakinan auditor eksternal, memungkinkan pengurangan prosedur substantif, dan memperbaiki strategi pengujian audit. Efektivitas SPI dipengaruhi oleh berbagai faktor, seperti peran aktif komite audit, independensi dan kompetensi auditor internal, serta integrasi teknologi informasi akuntansi. Meski demikian, tantangan seperti kolusi internal dan lemahnya struktur pengawasan tetap menjadi potensi risiko yang harus diantisipasi. Penelitian ini menyimpulkan bahwa penguatan SPI merupakan elemen krusial dalam mendukung audit berbasis risiko, tata kelola yang baik, dan kepercayaan investor terhadap laporan keuangan
Blue Ocean Strategy Analysis PT Mandom Indonesia Tbk
Get PDFThis research explores the potential of a Blue Ocean Strategy for PT Mandom Indonesia Tbk, a leading cosmetics company in Indonesia. By analyzing the company's internal and external environments, the study identifies opportunities and challenges within the competitive cosmetics industry. Using external and internal analysis, the research highlights PT Mandom Indonesia Tbk's strengths, weaknesses, and critical success factors. The Blue Ocean framework is then applied to propose innovative strategies, including new value propositions, target customers, and strategic actions. These strategies aim to create a new market space, differentiate PT Mandom from its competitors, and achieve sustainable growth. Key recommendations include embracing augmented reality technology, forging strategic partnerships with healthcare and wellness companies, and enhancing product offerings with a strong emphasis on emotional appeal. By implementing these strategies, PT Mandom Indonesia Tbk can create a blue ocean and secure a successful future
From self-gratification to practicality: Examining the role of materialism and personality traits in consumer decision-making
Get PDFThis study examines the mediating role of materialism in the relationship between narcissism, self-esteem, and shopping
value styles among Indonesian Generation Z consumers. Specifically, it explores how narcissism influences hedonic
shopping behaviors (pleasure-oriented) and how self-esteem drives utilitarian shopping values (efficiency-driven). Data
were collected from 470 respondents aged 18–25 in Surabaya, Indonesia, through a cross-sectional survey using
convenience sampling. Path analysis and bootstrapping with SmartPLS 4.0 were employed to assess direct, indirect, and
mediating effects. The results indicate that narcissism significantly correlates with hedonic shopping behaviors driven by
self-gratification and enjoyment. Meanwhile, self-esteem is associated with utilitarian values, emphasizing quality and
practicality. Materialism mediates the relationship between narcissism and hedonic shopping values, amplifying pleasureoriented
consumption. However, its effect on utilitarian values is weaker. Marketers can develop targeted strategies for
narcissistic and self-esteem-driven consumers, while educational programs can help mitigate materialistic tendencies and
promote responsible consumption. This study enhances the understanding of the interplay between personality traits,
materialism, and consumer behavior, offering valuable insights for both academia and industry
VP_Percobaan Hukum Pidana_Hwian Christianto
Get PDFVideo pembelajaran berdurasi 29 menit 15 detik ini memberikan pemahaman terkait sub materi hukum pidana terkait Percobaan. Ajaran terkait percobaan ini mencakup 3 (tiga) sub topik pembahasan, (1) Hakikat Percobaan, (2) Tiga Unsur percobaan dan (3) Bentuk Percobaan. Hakikat percobaan sangat bergantung pada tindak pidana yang terjadi sehingga tidak dapat berdiri sendiri. Pemahaman akan adanya percobaan harus memenuhi tiga unsur sesuai Pasal 53 Kitab Undang-undang Hukum Pidana yaitu harus ada niat (voornemen) yang nyata dari tindakan pelaku, adanya permulaan pelaksanaan yang tampak sebagai bagian awal dari tindak pidana dan tidak selesainya tindakan di luar kehendak diri pelaku. Pembahasan terkait percobaan ini pada tiap unsurnya menggunakan metode elaborasi antara teori dan contoh/ilustrasi tindakan sehingga memudahkan pemahaman. Pembahasan akhir terkait percobaan dikaitkan tentang 2 bentuk percobaan, yaitu Perbuatan telah selesai dilakukan tetapi akibat terjadi tidak sesuai yang diinginkan pelaku dan Perbuatan yang dituju tidak terpenuhi atau akibat yang dituju tidak terjadi. Kedua pembedaan ini menjadi dasar pembeda yang menjadi kunci pemahaman adanya berbagai bentuk percobaan. Keunikan dari video pembelajaran ini selain mengelaborasikan teori dan ilustrasi, pemaparan dilakukan dengan visualisasi bagan sehingga menarik dan memudahkan pemahaman tentang konsep percobaan dalam hukum pidana