Stress at the Workplace and Its Impacts on Productivity: A Systematic Review from Industrial Engineering, Management, and Medical Perspective

Elkana TIMOTIUS,Gilbert Sterling OCTAVIUS 대한산업공학회 2022 Industrial Engineeering & Management Systems Vol.21 No.2

In every fast-paced surrounding, stress is present in every life aspect, including at the workplace. It is a deeply person-al experience, with various stressors affecting every individual differently. This study assessed the past and present workplace stress-related information and analyzed its impact on productivity. It primarily concentrates on the field's philosophical principles, while providing a collection of directions for future study as well. This study was formed in the statement of PRISMA (Preferred Reporting Items for Systematic Review and Meta-Analysis). The impact of stress at the workplace on the employee’s productivity was observed in the cohort and cross-sectional studies from the perspective of industrial engineering, management, and medicine. Four eligible studies were qualitatively assessed from 2,642 identified literature through four databases (Cochrane, Science Direct, Scielo, and PubMed) using keywords stress, impact, productivity, industrial engineering, management, and medicine. The study was convinced that stress at the workplace contributes to worsening relationships at home, worsening relationships between superiors and subordinates as well as contracting diseases. It has a potential negative impact on productivity. Furthermore, the work environment plays a significant contribution in inducing workplace stress because of human physiologic response. Noxious stress is detrimental to the human body, especially if maintained in the long run. Therefore, stress management is imperative before it is too late.

Global Changing of Consumer Behavior to Retail Distribution due to Pandemic of COVID-19: A Systematic Review

Elkana TIMOTIUS,Gilbert Sterling OCTAVIUS 한국유통과학회 2021 유통과학연구 Vol.19 No.11

Purpose: Consumers have unique behaviors that are classified based on their interests and considerations before buying. They are predicted will change due to the pandemic of COVID-19. This study provides insights for retailers about the dynamic of consumer behavior before and during the pandemic, including future predictions. Research design, data and methodology: The Preferred Reporting Items for Systematic Review and Meta-Analysis (PRISMA) statement was applied in this study. Seven studies that were selected from five databases meet the criteria for cohort and cross-sectional analyses of gender, age, store types, and environmental concerns. Results: Consumer s gender and age contribute to consumer behavior change. Both offline and online stores can be integrated as omnichannel rather than substitute each other. Product distribution and consumer budget need to be reevaluated by retailers, while internet security is the most essential factor when developing their online transactions. Conclusions: COVID-19 pandemic has a significant impact on changing consumer behavior in most countries. Retailers are encouraged to adapt to the changes by modifying their business model with technology. However, it is still speculated and cannot be generalized due to different cultural and contextual factors. Future studies are always needed to synchronize along with the transition of consumers behavior.

Supply chain disruption in time of crisis: a case of the Indonesian retail sector

Elkana TIMOTIUS,Oki Sunardi,Iwan Aang Soenandi,Meriastuti Ginting,Burhan Sabini 인하대학교 정석물류통상연구원 2022 JOURNAL OF INTERNATIONAL LOGISTICS AND TRADE Vol.20 No.2

Purpose – This study investigated factors in the retail supply chains that were disrupted by the flow of the product distribution process from suppliers to retail stores and finally to consumers during the COVID-19 pandemic. Design/methodology/approach – This qualitative study involved 12 key informants from two manufacturing industries and three retail industries in Indonesia. Meanwhile, the analysis of empirical conditions employed qualitative content analysis to discover facts of the inbound and outbound supplies in retail supply chains. Findings – This study revealed high demands for certain products and a shift in consumer purchase trends during the pandemic screwed merchandising planning in retail stores. These conditions have brought continuous impacts on the production processes of manufacturing industries that also faced constrained raw material supplies. Container shortage in the global supply chain has increasingly aggravated the crisis of retail supply chains. 10; Practical implications – Retailers and all related parties are ready to anticipate the changing of the supply chain by preparing strategies to overcome the crisis. Originality/value – Acontribution is made to the global retail supply chain in times of crisis and can serve as a framework for further research in each region.

A Study of Indonesian Online Marketplace: Information Processing Theory Paradigm

Teofilus TEOFILUS,Timotius F.C.W. SUTRISNO,Charly HONGDIYANTO,Veronica WANANDA 한국유통과학회 2020 유통과학연구 Vol.18 No.8

Purpose: This study uses the protection motivation theory and information processing theory to discuss the high number of fraud phenomenon in Indonesia which causes worries to the internet users. The second problem is the large amount of information transparency in e-commerce which actually hinders the users in making decisions so it causes a negative behavior pattern, namely discontinue usage intention. Design/methodology: Therefore, this research hopes to provide insight to the online or e-commerce business community, especially for Tokopedia, to develop its business from understanding the factors influencing consumer attitude when shopping online. The sample are students from Universitas Indonesia, Institut Teknologi Bandung, Institut Pertanian Bogor, Universitas Gadjah Mada and Institut Teknologi Surabaya, with total 900 respondents. Result: The results of this research indicate that ubiquitous connectivity (UC) variable significantly affects variables such as the privacy concern (PC), information transparency (IT) and information overload (IO). PC and IO variables also significantly affect Discontinue Usage Intention (DUI). Conclusion: This study gives a new perspective that despite the phenomenon, the millennial generation especially are not entirely concerned about the privacy concern, however, this study clearly shows that the privacy issue in the digital word continues to be something that needs to be cared for.

The Biofilm Eradication Using Gentamicin and Anticoagulants as Catheter-Related Infection Prophylaxis in Hemodialysis Patients : A Systematic Review

Natasha, Augustine,Timotius, Kris Herawan The Korean Society for Microbiology and Biotechnol 2019 한국미생물·생명공학회지 Vol.47 No.2

The use of double lumen catheters as a means of hemodialysis access is commonly accompanied with the use of gentamicin as an antibiotic lock. Other antibiotics and anticoagulants are often added to increase the efficacy of gentamicin in order to reduce catheter-related infection and to prevent biofilm formation. This review aimed to evaluate the following: 1) the use of gentamicin in eliminating catheter-related infection and reducing biofilm formation in hemodialysis catheters, 2) the efficacy of additional antibiotics in combination with gentamicin, and 3) the effect of additional anticoagulants to complement the efficacy of gentamicin as the main prophylactic antibiotic lock. We sorted through data from 242 PubMed and ScienceDirect studies, which were then short-listed to 33 studies. Next, they were grouped, extracted, and analyzed qualitatively to fulfil the objectives of this review. Consequently, the use of a gentamicin-lock solution was shown to reduce the incidence of bacteremia; however, it was not strong enough to inhibit the growth of infectious microbes and formation of biofilms. Several bacteria, such as Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, and Klebsiella pneumoniae, have been reported as infectious agents. Combination with other antibiotics also provided no effect in reducing bacterial growth and biofilm formation in catheters. Furthermore, the additional anticoagulants (trisodium citrate and EDTA) were reported to be effective in enhancing the efficacy of gentamicin in avoiding catheter-related infection, bacterial growth, and biofilm formation; thus, the use of gentamicin can be rationalized.

Adaptive Supply Chain Management under Severe Supply Chain Disruption: Evidence from Indonesia

Gracia ONGKOWIJOYO,Timotius F.C.W. SUTRISNO,Teofilus TEOFILUS,Charly HONGDIYANTO 한국유통과학회 2020 유통과학연구 Vol.18 No.11

The recent Covid-19 outbreak has caused severe disruption of the global supply chain, which tests firms’ ability to survive and build resilience. The concept of adaptive supply chain management (A-SCM) has never been tested against a severe supply chain disruption, such as a pandemic. Purpose: The aim of this study is to examine how firms in Indonesia develop resilience through the implementation of components of adaptive supply chain management, namely risk management, resource reconfiguration and supply chain flexibility, in order to survive severe supply chain disruption. Research design, data and methodology: A qualitative method and PLS-SEM were used to analyze 120 data collected from Indonesian manufacturing firms in various industries. Results: The findings show that risk management, resource reconfiguration, and supply chain flexibility are important components that make up A-SCM. However, only risk management contributes to help build firm resilience in the presence of severe supply chain disruption. Conclusions: The components of A-SCM have been empirically tested. The implication is that managers should carefully use RM to prepare firms for different scenarios to develop contingency strategies. This research contributes to the supply chain management body of knowledge in the context of pandemic-level disruption and broadens the dynamic capabilities perspective.

Relationship between Phenotype Models Based on Waist Circumference and Triglyceride Levels and the Risk of Chronic Kidney Disease: A Systematic Review and Meta-analysis

Karunia Valeriani Japar,Timotius Ivan Hariyanto,Mochammad Sja’bani Mardjopranoto 대한비만학회 2023 Journal of obesity & metabolic syndrome Vol.32 No.3

Background: Chronic kidney disease (CKD) is a leading cause of death worldwide and has a high cost of treatment. Studies have indicated that a combination of waist circumference (WC) and triglyceride (TG) levels can be used to determine the risk of CKD. This study analyzes the risk of CKD using four phenotype models based on WC and TG. Methods: This meta-analysis analyzes 113,019 participants from 13 studies. We conducted relevant literature searches in the Europe PMC, Medline, and Scopus databases using specific keywords. The results obtained were pooled into odds ratios (ORs) with 95% confidence intervals (CIs) using random-effects models. Results: Our pooled analysis revealed that the highest significant independent association was between CKD and the high WC-high TG phenotype (adjusted OR, 1.61; 95% CI, 1.39 to 1.88; P<0.00001; I2=59%), followed by the high WC-normal TG phenotype (adjusted OR, 1.33; 95% CI, 1.12 to 1.57; P=0.001; I2=67%), and the normal WC-high TG phenotype (adjusted OR, 1.20; 95% CI, 1.06 to 1.37; P=0.005; I2=29%) when the normal WC-normal TG phenotype was taken as the reference. Conclusion: Our study suggests that phenotype models based on WC and TG can be used as screening tools to predict the risk of CKD. Our results also indicate that WC plays a larger role than TG in the CKD risk. Further prospective studies are needed to confirm the results of our study.

Comparative Efficacy and Safety of Radiofrequency Ablation and Microwave Ablation in the Treatment of Benign Thyroid Nodules: A Systematic Review and Meta-Analysis

Zufry Hendra,Hariyanto Timotius Ivan 대한영상의학회 2024 Korean Journal of Radiology Vol.25 No.3

Objective: The current body of evidence lacks clarity regarding the comparative efficacy and safety of radiofrequency ablation (RFA) and microwave ablation (MWA) as minimally invasive treatments for benign thyroid nodules. The primary objective of this study is to clarify these concerns. Materials and Methods: A comprehensive search was conducted using the Cochrane Library, Scopus, Europe PMC, and Medline databases until October 10th, 2023, using a combination of relevant keywords. This study incorporated literature that compared RFA and MWA for benign thyroid nodules. The primary outcome was the volume reduction ratio (VRR) from baseline to follow-up. Secondary outcomes were symptom score, cosmetic score, ablation time, major complications rate, hemorrhage, hoarseness, skin burn, cough, and sympathetic nerve injury. We used Risk of Bias in Non-randomized Studies - of Interventions (ROBINS-I) tool to assess the risk of bias in the included studies. We employed random effects models to analyze the standardized mean difference (SMD) and odds ratio for the presentation of outcomes. Results: Nine studies with 2707 nodules were included. The results of our meta-analysis indicated similar efficacy between RFA and MWA in terms of VRR during the 1 (SMD 0.06; 95% confidence interval [CI]: -0.13 to 0.26; P = 0.52) and 3 (SMD 0.11; 95% CI: -0.03 to 0.25; P = 0.12) months of follow-up. VRR was significantly higher in RFA than in MWA at the 6 (SMD 0.25; 95% CI: 0.06–0.43; P = 0.008) and 12 month of follow-up (SMD 0.38; 95% CI: 0.17 to 0.59; P < 0.001). There were no significant differences between RFA and MWA in symptom scores, cosmetic scores, or the incidence of complications, including hemorrhage, hoarseness, skin burn, cough, and sympathetic nerve injury. Conclusion: RFA showed a higher VRR than MWA at 6 and 12-month follow-ups, with a comparable safety profile.

The Biofilm Eradication Using Gentamicin and Anticoagulants as Catheter-Related Infection Prophylaxis in Hemodialysis Patients : A Systematic Review

Augustine Natash,Kris Herawan Timotius 한국미생물·생명공학회 2019 한국미생물·생명공학회지 Vol.47 No.2

The use of double lumen catheters as a means of hemodialysis access is commonly accompanied with the use of gentamicin as an antibiotic lock. Other antibiotics and anticoagulants are often added to increase the efficacy of gentamicin in order to reduce catheter-related infection and to prevent biofilm formation. This review aimed to evaluate the following: 1) the use of gentamicin in eliminating catheter-related infection and reducing biofilm formation in hemodialysis catheters, 2) the efficacy of additional antibiotics in combination with gentamicin, and 3) the effect of additional anticoagulants to complement the efficacy of gentamicin as the main prophylactic antibiotic lock. We sorted through data from 242 PubMed and ScienceDirect studies, which were then short-listed to 33 studies. Next, they were grouped, extracted, and analyzed qualitatively to fulfil the objectives of this review. Consequently, the use of a gentamicin-lock solution was shown to reduce the incidence of bacteremia; however, it was not strong enough to inhibit the growth of infectious microbes and formation of biofilms. Several bacteria, such as Staphylococcus aureus, Staphylococcus epidermidis, Escherichia coli, and Klebsiella pneumoniae, have been reported as infectious agents. Combination with other antibiotics also provided no effect in reducing bacterial growth and biofilm formation in catheters. Furthermore, the additional anticoagulants (trisodium citrate and EDTA) were reported to be effective in enhancing the efficacy of gentamicin in avoiding catheter-related infection, bacterial growth, and biofilm formation; thus, the use of gentamicin can be rationalized.

The Effect of Entrepreneurial Learning towards Entrepreneurial Intention of Indonesian Women

HONGDIYANTO, Charly,TEOFILUS, Teofilus,SUTRISNO, Timotius F.C.W.,DEWANTI, Putu Sonnia Paramaesya Korea Distribution Science Association 2020 The Journal of Asian Finance, Economics and Busine Vol.7 No.9

Entrepreneurship has been the center of a worldwide phenomenon as it has contributed a lot in the economy. The researcher is trying to acknowledge the interest of Indonesian women to build their own businesses. The aim of this research is to see how entrepreneurial learning could influence Indonesian women to grow interest in doing entrepreneurial activity, with the help of three mediations: attitude toward entrepreneurship, subjective norms, and perceived behavioral control. The research will use quantitative method and SmartPLS 3.0 to support the statistical data. The respondents are Indonesian women ranging around 17 years old and above who have had the experienced entrepreneurship learning in educational institutions. To show a more accurate result, purposive sampling will be used where it is very objective and selective to help the researcher in providing the justification to make generalizations from the investigated sample from a total of 149 respondents from various regions in Indonesia. The findings on this research are entrepreneurial learning is influencing the entrepreneurial intention of Indonesian women with the help of two mediations, which are attitude toward entrepreneurship and perceived behavioral control. Subjective norms is found has no significant influence on growing the entrepreneurial intention of Indonesian women.