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The Impact of Transformational Leaderhsip on Voice Behavior in Walubi Pematangsiantar Chandra, Erbin; Sisca; Andy Wijaya; Lora Ekana Nainggolan; Onita Sari Sinaga
International Journal of Science, Technology & Management Vol. 3 No. 2 (2022): March 2022
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v3i2.483

Abstract

Transformational leadership is one type of leadership that is currently being discussed. This type of leadership is considered to be able to encourage voice behavior from members of an organization to produce useful opinions to create change for the better future for the organization. The purpose of this study was to investigate the influence of transformational leadership on member voice behavior in Walubi Pematangsiantar. The research population are all members (30 people) of Walubi Pematangsiantar. Data was collected through questionnaires, interviews, and documentation. Data analysis method used in this reasearch is simple regression analysis, correlation analysis, and hypothesis test (t test). The result showed that there was a positive effect between transformational leadership and voice behavior at Walubi at Pematangsiantar City. Hypothesis test result showed that transformational leadership had positive and significant effect to voice behavior. Suggestions for further research to increase the number of samples and organizations, and also increasing research variables so that new inputs that are more useful can be found, especially regarding the latest leadership issues. This study tries to make a Buddhist organization as an organization that is minority in Indonesia, and also not profit-oriented into an object of research that is rarely studied by scholars. The author also uses transformational leadership combined with voice habits as a research variable which is expected to be able to find a new finding that is effective in developing a non-profit organizations.
How To Improve Business Performance Of Msmes In The Covid-19 Pandemic Through Knowledge Sharing Wijaya, Andy; Sisca
International Journal of Science, Technology & Management Vol. 4 No. 1 (2023): January 2023
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v4i1.749

Abstract

Micro, Small and Medium Enterprises (MSMEs) are economic drivers in both developed and developing countries, including Indonesia. In an effort to improve the performance of MSMEs, it is necessary to pay attention to the application of knowledge sharing within these MSMEs. The purpose of this study was to analyze the relationship between the application of the knowledge sharing model and the improvement in the performance of MSMEs especially during the Covid-19 Pandemic. The research subjects taken in this study were MSME actors in the food and beverage sector at Pematangsiantar City, totaling 374 MSMEs. The analysis technique used in this study was Structural Equation Modeling (SEM) using the Smart PLS program. The results of this study indicated that the performance of MSMEs increases when the application of knowledge sharing went well, this couldbe seen from the test results which showed that tacit knowledge sharing had a positive and significant effect on marketing performance and explicit knowledge sharing has a positive and significant effect on financial performance. However, it was different from the effect of explicit knowledge sharing on marketing performance which showed a negative and significant influence.
The Role of Glycemic Load, Dairy, and Fatty Acids in Acne Disorders: A Systematic Review and Meta-Analysis Limanda, Claudia Felicia; Mathlubaa, Asya; Istikanto, Ferdian Harum; Sisca; Nabila, Yusra; Amalia, Shania Rizky; Putri, Syafira Ayudiah Syah; Ilmiani, Tasya Khalis; Hartanto, Ericko; Nurfadhila, Melinda
Medicinus Vol. 15 No. 1 (2025): October
Publisher : Fakultas Kedokteran Universitas Pelita Harapan

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.19166/med.v15i1.10771

Abstract

Background: Modern dietary patterns characterized by high glycemic load, dairy consumption, and imbalanced fatty acid profiles may aggravate acne through insulin, IGF-1, and inflammatory pathways. However, findings across studies remain inconsistent. This systematic review and meta-analysis aimed to evaluate the associations between dietary glycemic load, glycemic index, dairy intake, and fatty acid composition with acne disorders. Methods: Following PRISMA 2020 guidelines, PubMed, EMBASE, and Scopus were systematically searched to September 2025. Eligible human studies assessing quantitative relationships between these dietary exposures and acne risk or severity were included. Random-effects meta-analyses were performed using the Hartung–Knapp–Sidik–Jonkman method, with effect sizes expressed as standardized mean differences (SMD) or risk ratios (RR). Result: Five studies encompassing 716 participants (426 acne, 290 controls) met the inclusion criteria. Pooled estimates indicated no significant associations for glycemic load (SMD = 0.09; 95% CI −0.30 to 0.49), glycemic index (SMD = 0.09; 95% CI −0.30 to 0.49), fatty acids/adiponectin (SMD = 0.11; 95% CI −0.74 to 0.97), or dairy consumption (RR = 1.04; 95% CI 0.25 to 4.25). Heterogeneity ranged from moderate to high (I² = 65–90%). Certainty of evidence was moderate for glycemic and dairy outcomes, and low for fatty acids. Conclusions: No significant pooled associations were observed between dietary glycemic load, dairy intake, or fatty acids and acne risk. Despite biological plausibility linking diet to acne via hormonal and inflammatory mechanisms, evidence remains inconsistent. Larger, controlled trials are warranted to define the role of nutritional interventions in acne management.