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All Journal Damianus Journal of Medicine Journal of Tourism Destination and Attraction Proceeding National Conference Business, Management, and Accounting (NCBMA) Proceeding of International Conference on Entrepreneurship (IConEnt)
Daniel Widjaja
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Economics, Econometrics & Finance Health Professions Medicine & Pharmacology Public Health Social Sciences Other

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EFEKTIVITAS ASAM RETINOIK PADA PENYEMBUHAN LUKA PERFORASI BARU MEMBRAN TIMPANI HEWAN COBA MARMOT Daniel Widjaja
Bahasa Indonesia Vol 21 No 1 (2022): Damianus Journal of Medicine
Publisher : Atma Jaya Catholic University of Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.25170/djm.v21i1.3288

Abstract

Introduction: Tympanic membrane (TM) perforation is common in our practice, it may be due to infection or trauma. Retinoic acid (RA) has been studied for its effect on wound healing, it can stimulate angiogenesis and increase the rate of re-epithelialization in wounded skin. The purpose of this study is to determine the effectiveness and the rate of healing of RA in wound closure of acute TM perforations in Guinea pigs Methods: This is a randomized control trial animal experimental study, twenty Guinea pigs (40 TM) were used. Randomization to determine group for intervention and control was done using the toss coin method. A small perforation using spinal needle G 20 was done. RA was introduced in the intervention group while in the control group, TM was allowed to heal spontaneously. All TM were examined on day 3, 7, 10 and 14. Recording of perforation was done with endoscopic system. Measurement of the TM as well as the perforation was done by using a graphic program (AutoCAD R14). Results: TM healed completely on day 14 in the intervention group and the control group was 52.9 % and 47.1% respectively with p =0.492. The rate of healing on day 3,7 and 10 in the intervention group and the control group was 0.15 & 0.08; 0.38 & 0.69; 0.29 & 0.58 respectively with p= 0.01; 0.003 and 0.001. Conclusion: Tympanic membrane with RA treated group showed a significant rate of healing on day 3,7 and 10. However, RA have no significant effect on closure of acute traumatic perforations after day 14
PERANAN BUDAYA ORGANISASI DALAM MEMBANGUN LOYALITAS KARYAWAN: STUDI KASUS GRAND HYATT JAKARTA Daniel Widjaja; Yustisia Pasfatima Mbulu; Sarfilianty Anggiani
Journal of Tourism Destination and Attraction Vol 9 No 2 (2021): Journal of Tourism Destination and Attraction
Publisher : Fakultas Pariwisata Universitas Pancasila

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.35814/tourism.v9i2.1775

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This study aims to analyze the role of organizational culture at the Grand Hyatt Jakarta and to analyze employee loyalty at the Grand Hyatt Jakarta and the impact of organizational culture on employee loyalty at the Grand Hyatt Jakarta. The method used in this research is a qualitative descriptive case study using primary and secondary data. The results of this study indicate that the role of organizational culture at Grand Hyatt Jakarta is seen from the indicators of organizational culture characteristics which consist of seven elements, but one element is still being considered, namely the elements of innovation and risk taking. For employee loyalty at the Grand Hyatt Jakarta, it can be seen from the four indicators that only one indicator is still being considered, namely the compliance indicator. While the impact of organizational culture on employee loyalty at Grand Hyatt Jakarta can be seen that from the indicators of innovation and risk taking, results orientation, orientation to human resources and orientation to the team have an impact on employee responsibility. The indicators of attention to detail or detail will increase the level of employee compliance and the indicators of aggressiveness will make employees have dedication to the hotel as well as indicators of stability / stability which will make employees have integrity.
From Stage to Skin: Unpacking K-Pop’s Power as Ambassadors for Scarlett Skincare in Indonesia Sylvia Samuel; Daniel Widjaja
Proceedings of the International Conference on Entrepreneurship (IConEnt) Vol. 4 (2024): Proceedings of the 4th International Conference on Entrepreneurship (IConEnt)
Publisher : Universitas Pelita Harapan

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This research examines the impact of K-Pop celebrity endorsements on consumer purchase decisions within the Indonesian skincare market, specifically focusing on Scarlett Skin Care products. Using a quantitative research design, data were collected from 350 Indonesian consumers and analyzed using Partial Least Squares Structural Equation Modeling (PLS-SEM) in SmartPLS. The results demonstrate that promotional activities exert the strongest and most statistically significant influence on purchase decisions, positioning promotion as a crucial driver of consumer interest in Scarlett products. While K-pop endorsements achieved high visibility and appeal among respondents, they displayed a negligible direct effect on purchase decisions, with a slight negative influence detected. Moreover, the interaction between income level and celebrity endorsement was found to be non-significant, indicating that the appeal of K-Pop endorsements does not vary substantially across income segments. Viral marketing also showed no significant moderation by income, with only a marginally significant interaction observed between income and promotion.
UNDERSTANDING THE IMPACT OF DIGITAL BEHAVIOR ON SKINCARE PURCHASES Sylvia Samuel; Daniel Widjaja
Proceeding National Conference Business, Management, and Accounting (NCBMA) 8th National Conference Business, Management, and Accounting
Publisher : Faculty of Economics and Business Universitas Pelita Harapan

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Abstract

Social media interactions in the rapidly evolving digital marketplace increasingly shape consumer purchasing behavior. This study investigates the influence of Electronic Word of Mouth (e-WOM) and price perception on purchase intention, with brand image as a mediating variable, using the Indonesian skincare brand Skintific as a case study. Utilizing a quantitative approach with Structural Equation Modeling (SEM) on data from 372 TikTok users in West Jakarta, the findings reveal that e-WOM significantly impacts purchase intention but does not significantly affect brand image. Conversely, price perception exerts a strong influence on brand image and, indirectly, on purchase intention. Brand image significantly mediates the relationship between independent variables and purchase intention. These insights suggest that while e-WOM remains essential for influencing immediate purchasing decisions, price perception plays a more substantial role in shaping brand image, which drives long-term consumer loyalty. The study contributes to digital marketing literature by highlighting the nuanced interplay between user-generated content, pricing strategies, and consumer behavior in social commerce.
Trust, Online Reviews, and Ratings as Drivers of Purchase Intention: Evidence from Generation Z Shopee Users in Greater Jakarta Sylvia Samuel; Daniel Widjaja
Proceedings of the International Conference on Entrepreneurship (IConEnt) Vol. 5 (2025): Proceedings of the 5th International Conference on Entrepreneurship (IConEnt)
Publisher : Universitas Pelita Harapan

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Abstract

E-commerce growth in Indonesia has been accelerated by the rise of platforms such as Shopee, where trust and electronic word of mouth (e-WOM) play critical roles in consumer decision-making. While prior studies have examined reviews, ratings, and trust separately, few have integrated them into a unified model and tested their combined influence among Generation Z consumers. This digitally native cohort dominates online shopping. This study examines the impact of trust, online customer reviews, and online customer ratings on purchase intention, with gender serving as a potential moderator, in the context of Greater Jakarta. Using a quantitative approach and PLS-SEM analysis of survey data from 350 Shopee users, the results reveal that online customer reviews, ratings, and trust significantly and positively affect purchase intention, with online customer ratings exerting the most substantial effect. Unexpectedly, gender and its moderating effects were not significant, suggesting that male and female Gen Z consumers evaluate trust and e-WOM cues similarly. These findings extend the Theory of Planned Behavior and the Elaboration Likelihood Model by demonstrating how central (reviews, trust) and peripheral (ratings) cues jointly influence consumer intentions in an emerging market context. Practically, the study offers actionable implications for platforms and sellers, highlighting the need to strengthen trust-building mechanisms, ensure credible rating systems, and encourage authentic reviews. The research contributes by integrating trust and e-WOM variables into a single model, demonstrating their relevance in Indonesia, and revealing a generational shift in gender differences in online consumer behavior.
Co-Authors Sarfilianty Anggiani Sylvia Samuel Yustisia Pasfatima Mbulu