Greater Jakarta Area Research Articles

FAMILY CLIMATE, PERCEPTION, AND ADOLESCENTS' STRESS PRIOR TO AND DURING COVID-19 PANDEMIC

The COVID-19 pandemic has various impacts on life, one of which causes stress in adolescents. This study aims to analyze the influence of family climate and adolescent perceptions of stress levels during the pandemic. This study used a cross-sectional study design. The sampling in this study used a non-probability sampling method with a voluntary sampling technique through the distribution of bold questionnaires. The research sample was 113 junior high and high school students aged 13-18 in the Greater Jakarta area (Jakarta, Bogor, Depok, Tangerang, Bekasi). Based on the study results, the category of almost all teenagers has a family climate in the medium. Almost approaching adolescents, adolescents' perceptions and stress levels during the pandemic are included in the low category. There was no significant difference between adolescents' perceptions before and during the pandemic, while adolescents' stress level was significantly higher than before the pandemic. The study's results showed that family climate was negatively related to adolescent stress levels during the pandemic. On the other hand, adolescent perceptions during the pandemic were significantly positively related to the stress level of adolescents during the pandemic. Factors that significantly negatively affect adolescent stress levels during the pandemic are family size and family climate (on the dimensions of relationships in the family and family violence). Adolescent perceptions during the pandemic have a positive effect on adolescent stress levels during the pandemic.

The Effect of Religiosity on Muslim Consumer’s Switching Behavior in Greater Jakarta Area

Article Info: Received 14 January 2022, Accepted 10 July 2022 Article Correspondence: nadhirabuhari@gmail.com Recommended Citation: Buhari, Nadhira (2022). The Effect of Religiosity on Muslim Customer’s Switching Behavior in the Greater Jakarta Area. Journal of Multidisciplinary Issues 2(1) 10 – 17 (2022)

Effectiveness and safety profile of mesenchymal stem cell secretome as a treatment for severe cases of COVID-19: a randomized controlled trial

Background: Mesenchymal stem cells (MSCs) are known to have immunomodulatory, anti-inflammatory, anti-apoptotic, and angiogenesis effects that are useful for relieving inflammation, recovery, and protection of lung tissues in COVID-19 patients. Secretome, a secretory product of MSCs, has several advantages over MSCs. We conducted a study to investigate secretomes’ effectiveness and safety profile as a treatment for severe COVID-19. Methods: A double-blind, multicenter, randomized, placebo-controlled trial was conducted between February 2021 and July 2021 in three top COVID-19 referral hospitals in the Greater Jakarta area, Indonesia. Eligible subjects (n=40) were randomized in a 1:1 ratio to an intervention group (n=20) and a control group (n=20). The primary outcome of this study was the changes in inflammatory markers and the ratio of inflammatory to anti-inflammatory markers. The secondary outcomes of this study included clinical outcome, laboratory outcome, radiological outcome, RT-PCR result conversion, and safety profile of MSC secretome. Results: Our analysis showed that on the 14th day after placebo administration, IL-6 level in the control group was significantly increased [4.110 (2.403–12.820) at baseline to 13.320 (2.958–33.285) on the 14th day after intervention, p=0.017]. The IL-6/IL-10 ratio in the control group was significantly increased (p=0.036) on the 14th day after placebo administration. We also found that most of the subjects who received placebo had high levels of IL-6 and ferritin (p=0.043) on the seventh day after the intervention. However, we found no significant differences in inflammatory marker levels on the seventh day and 14th day after intervention between both groups. There was no adverse event reported. There were no significant differences in the laboratory outcome, radiology outcome, RT-PCR result conversion, and safety profiles between both groups. Conclusions: MSC secretome can control inflammation in patients with severe COVID-19 and has a good safety profile. MSC secretome is a promising treatment modality for severe COVID-19.

PENGARUH BRAND IMAGE DAN KUALITAS LAYANAN TERHADAP KEPUTUSAN PEMBELIAN ULANG DENGAN KEPUASAN KONSUMEN SEBAGAI VARIABEL MODERATING

The purpose of this study was to determine and analyze the effect of brand image and service quality on repurchase decisions with consumer satisfaction as a moderating variable. This research was conducted on the Shopee marketplace with respondents residing in the Greater Jakarta area. This research category is using descriptive method and causality. The sampling technique used purposive sampling with a total sample of 420 respondents. Collecting data using a questionnaire. The data analysis technique uses Structural Equation Modeling (SEM) analysis which is processed with Smart PLS 3.0. The results of the study prove that brand image has a significant effect on repurchase decisions in the Shopee marketplace. Service quality has a significant effect on repurchase decisions on the Shopee marketplace. Consumer satisfaction did not succeed in moderating the relationship between brand image and repurchase decisions. Consumer satisfaction managed to moderate the relationship between service quality and repurchase decisions.

Risk and responsibility: lay perceptions of COVID-19 risk and the ‘ignorant imagined other’ in Indonesia

Lay constructions of risk impact upon public health activities and underpin social reactions to experiences and understandings of infectious diseases. In this article, we explore the social construction of COVID-19 risk and responsibility by citizens of Jakarta and the Greater Jakarta Area, Indonesia. We draw upon digital diaries produced each week by 37 participants across a 5-week period from April to June 2020, a time of substantial policy flux in Indonesia. Key findings reflect the everyday construction of risk within the context of changing government restrictions regarding physical distancing. In the context of perceived confusion around government activity, the participants narrated individualised accounts of risk production, as they reflected upon the transmission of COVID-19. Our findings indicate the emergence of the concept of the ‘ignorant imagined other’ as underpinning how lay persons locate risks in unknowledgeable others and see themselves as socially protected through their own perceived knowledgeability of COVID-19. Our findings contribute to the literature on the social perception of infectious disease through the examination of the understudied context of urban Indonesia and by demonstrating the social location of risk in relation to a generalised imagined other, within a wider context of public health governance.

Pengaruh Pengetahuan Akuntansi Dan Kinerja Karyawan Terhadap Kualitas Laporan Keuangan

This study aims to analyze the effect of accounting knowledge and employee performance on the quality of financial reports moderated by the use of Accounting Information Systems in service companies in the Greater Jakarta area. The population of this research is employees who work in companies in the service sector in the Greater Jakarta area. The research sample consisted of 153 respondents. The data used in the form of primary data, namely by distributing online questionnaires to employees who work in service companies in the Jabodetabek area. The data collection technique used in this research is probability sampling. The statistical method uses Multiple Linear Regression Analysis, with statistical test hypothesis testing. Using SPSS and Smart PLS programs. This study applies a Likert scale with a 5 point scale to measure research variables. The results showed that accounting knowledge, employee performance and accounting information systems had a significant effect on the quality of financial reports, AIS Moderation on the effect of Accounting Knowledge on the quality of financial statements produced no significant effect, and AIS Moderation on Employee Performance on the quality of financial statements does not have a significant effect. The implication of this research is that companies can use this research in order to maintain and improve the quality of financial reports that are good and according to standards for the benefit of management and stakeholders in making future decisions by increasing knowledge and performance of their employees.

Increased Purchases of Insurance Products Based on Factors That Affect Customer Trust (Study on Banccasurance in Greater Jakarta, Indonesia)

The objective of this research is to analyze the influence of service quality of salesperson, trust in an insurance company, trust in a seller's bank on the level of customer trust for Increased purchases of bancassurance products in greater Jakarta, Indonesia. The sample consists of Banks which are categorized as banking customers who have purchased bancassurance products in the Greater Jakarta area. The technique of analysis used for this research is the structural equation model. This research has been analyzed with an AMOS 20 program, and during the significance test, it indicated that fixed effect was the most appropriate method. The result of this research shows that the service quality of the salesperson shows a significant positive effect on the level of customer trust, the credibility of the seller bank shows a significant positive effect on the level of customer trust, and the credibility of the insurance company shows a significant positive effect on the level of customer confidence, level of customer trust shows a significant positive effect on purchasing decisions .

Characterization of Hemagglutinin Gene Fragment of H9N2 Avian Influenza Virus Isolated from Environmental Live Bird Market in the Greater Jakarta Area

Virus H9N2 has become the most common subtype of low pathogenic avian influenza (LPAI) in poultry and shows the ability to infect humans. One of the important factors triggering the virus ​​pandemic is the live bird market (LBM). The virus acts as an internal gene donor in the other subtypes, such as H5N1, H5N2, H7N9, and H10N8, in poultry and humans. This study was conducted to detect the presence of the H9N2 virus and the molecular characteristics of the hemagglutinin gene fragment at the cleavage site, receptor binding site, antigenic site, and glycosylation site positions of the H9N2 subtype AI virus isolated from the LBM environment. This study used Disease Investigation Center Subang isolates from environmental samples of LBM in the Greater Jakarta area (DKI Jakarta, Bogor, Depok, Tangerang, and Bekasi) in 2019. Based on molecular detection using RT-PCR and RT-qPCR, it was found that avian influenza subtype H9N2 was detected. This indicates that LBM has the potential to be the source of the spread of the ​​H9N2 virus. The pattern of the amino acid cleavage site PSRSSR↓GLF indicates that the research sample belongs to the low pathogenic AI. The substitution of amino acids in the receptor binding site and antigenic site increases the specificity of non-human host recognition. The potential glycosylation site, with the NCS motif found in amino acid position 295-297, close to the receptor-binding site. Based on genetic analysis and phylogenetic topography, the virus is included in the CVI (China, Vietnam, Indonesia) lineage and subclade H9.4.2.5.

The Role of Proactive Coping And Future Time Orientation on Perceived Work Productivity in Generations Y and Z

This study aims to determine the role of proactive coping and future time orientation towards perceived work productivity for millennials and post-millennials during conditions before and during the Covid-19 pandemic, as well as explore productivity models by Gen Y and Z during the Covid-19 pandemic. The data analysis method used is logistic regression analysis by distributing questionnaires to 400 employees who work in the oil and gas industry in the Greater Jakarta area in September-November 2021 as research samples. The results showed that proactive coping had an effect on future time orientation, future time orientation had an effect on perceived work productivity, proactive coping had an effect on perceived work productivity, Generations Y and Z moderated the relationship between proactive coping and future time orientation, and Generations Y and Z did not moderate the relationship. between future time orientation and perceived work productivity. Keywords: proactive coping, future time orientation, perceived work productivity, millennial, covid-19

The Importance of Entrepreneurship Learning And Business Motivation Seminars To Increase The Desire To Be An Entrepreneur

Being an entrepreneur is very complicated, because there are many things that must be mastered, ranging from knowledge, expertise, marketing, management, to personal personality. So do not be surprised, people prefer to be employees. One way to become a business actor is to learn to do business, both theoretically and practically. In addition, to become a business actor, you must have a high self-confidence and enthusiasm, the way is by attending business motivation seminars or participating in entrepreneurial communities/forums. This study seeks to reveal the possibility of strengthening interest in entrepreneurship which is influenced by learning factors and attending entrepreneurship motivation seminars. To answer the research objectives, a scientific method was established, namely quantitative. The research subjects are startup business actors from among students in the Greater Jakarta area, who are currently building their businesses. The number of research samples was 150 people, which was obtained through distributing questionnaires on social media using the Google Forms application. The sampling technique uses simple randomization and data analysis uses regression statistics. The results showed that the desire for entrepreneurship was strengthened if knowledge and motivation about business increased, both in partial and simultaneous models. This explains that there is a positive trend, business actors are starting to find their way in business and enjoy being a businessman. Therefore, it is important for novice entrepreneurs to enrich themselves by learning a lot and getting business inspiration, which arouses the passion for entrepreneurship.

Effect of Product Quality, Advertisement, and Brand Image on Purchase Decision Mediated By Customer Value of Louis Vuitton at Jabodetabek

This study was conducted to determine the effect of product quality, advertising, brand image, and customer value on Louis Vuitton purchasing decisions in the Greater Jakarta area. To achieve the research objectives, the researcher used quantitative research which was applied to 168 Louis Vuitton consumers in Greater Jakarta. Researchers tested validity and reliability and processed respondent data using the SmartPLS ver 3 application. The results showed that there was a positive and significant influence of advertising and customer value on purchasing decisions. But product quality and brand image have no positive and significant effect and the results also show no significant effect between product quality and customer value.

Effect of Product Quality, Advertisement, and Brand Image on Purchase Decision Mediated By Customer Value of Louis Vuitton at Jabodetabek

This study was conducted to determine the effect of product quality, advertising, brand image, and customer value on Louis Vuitton purchasing decisions in the Greater Jakarta area. To achieve the research objectives, the researcher used quantitative research which was applied to 168 Louis Vuitton consumers in Greater Jakarta. Researchers tested validity and reliability and processed respondent data using the SmartPLS ver 3 application. The results showed that there was a positive and significant influence of advertising and customer value on purchasing decisions. But product quality and brand image have no positive and significant effect and the results also show no significant effect between product quality and customer value.

Verification of urban light rail transit (LRT) bogie frame structure design lifetime under variable fatigue loads

The bogie frame is the main structure of the train that supports the train's loads during its operation. These structures are subject to fatigue testing to ensure their design life is up to the required standards. The urban light rail transit (LRT) bogie frame used in the Greater Jakarta area is newly designed and manufactured by a commercial railway rolling stock manufacturer. The design lifetime of this newly designed bogie frame structure under various fatigue load conditions is verified experimentally by fatigue testing. Testing and evaluations were conducted following the EN 13749 standard and VDV recommendation. The fatigue test of the urban LRT bogie frame structure was carried out in the test hall of the BPPT Structural Strength Technology Center (B2TKS) using a combination of seven loadings. The bogie frame was subjected to two variable types of fatigue loads, namely driving in curves and passing points (switches), with 2,000,000 cycles, 4,000,000 cycles, and 6,000,000 cycles of fatigue loadings. The parameter measured on the bogie frame structure is the strain value during the test using a dynamic data logger. The stress values analyzed are the average stress and the stress amplitude and then plotted on the maximum and minimum stress curve. The bogie structure is inspected by the non-destructive test method in all areas of its welded joints. This inspection is carried out before and after the test to ensure whether there are cracks caused by fatigue loads. The results of the fatigue test on the bogie structure under the variable fatigue load conditions show that the maximum stress value of 91.71 MPa at 1,500,000 cycles, that occurs during the test, does not exceed the fatigue limit of the material, and there are no cracks in the structure after the test is carried out for up to 6,000,000 cycles.

Pengaruh Inovasi Konsumen terhadap Niat Beli Produk Baru Melalui Proses Pembelajaran dan Nilai Manfaat yang di moderasi dengan harga

Currently, consumers tend to want a product based on a trend that is currently being discussed. Most people buy a product without knowing the uses or specifications in it. On average they only rely on what products have just come out or have just been produced. Even though there is now a COVID-19 pandemic, they don't seem to care about it. This may be due to factors that do not want to lower their socio-economic status, so that prices are not too significant a problem. The purpose of this study is to determine whether consumer innovativeness can affect the learning process, perceived value, and new product purchase intentions, as well as the role of price moderation on purchase intentions of new products. This research was conducted from May to June 2021 with 260 with new product purchase intentions on smartphones in the Greater Jakarta area. We used the structural equation model (SEM) analysis method to test this research model. The results obtained indicate that consumer innovativeness has a positive effect on the learning process and new product purchase intentions. Consumer innovativeness does not have a positive effect on perceived value. Furthermore, the learning process has a positive effect on perceived value, but does not have a positive effect on new product purchase intentions. Perceived value affects new product purchase intentions. The learning process and perceived value cannot partially mediate the relationship between consumer innovativeness and new product purchase intention. The perceived value can not directly mediate the relationship between the learning process and new product purchase intentions and also price can moderate the relationship between consumer innovativeness and purchase intentions of new products.

The Dilemma of Innovative Behavior of Hybrid Entrepreneurs in the Role of Employees

Innovation is a crucial element to achieving business success and sustainability. In pursuing superior performance, organizational members generate new ideas and realize new ideas. Hybrid entrepreneurship was a phenomenal point of view but was still poorly studied in the management literature. This research that examines the topic of entrepreneurship contributes to the development of entrepreneurship and economic growth. The approach in this research was quantitative. Respondents were entrepreneurs and employees in the Greater Jakarta area (Jabodetabek) with a simple random sampling technique. A total of 104 respondents returned the questionnaire. Evaluation of research hypotheses used SmartPLS software program. Results show that all variables have a significant correlation.

The Relationship of Loneliness and Internet Addiction To Psychological Well-Being in Adolescents

This study aims to see the relationship between loneliness and internet addiction with the psychological well-being of adolescents in the Greater Jakarta area who actively use the internet. The sampling technique used accidental sampling technique and the sample in the study consisted of 232 adolescents aged 13-21 years. The measuring instrument used is the UCLA Scale Version 3 (University of California Los Angeles Loneliness Scale Version 3) compiled by Rusell (1996), the IAT Scale (Internet Addiction Test) compiled by Young (1998) and the PWB Scale (Psychological Well Being Scale) compiled by Ryff (1995). The results of this study showed that there was no significant relationship between loneliness and psychological well-being and there was no relationship between internet addiction and psychological well-being. However, there is a relationship between loneliness and internet addiction among adolescents.

Effectiveness and safety profile of mesenchymal stem cell secretome as a treatment for severe cases of COVID-19: a randomized controlled trial

Background: Mesenchymal stem cells (MSCs) are known to have immunomodulatory, anti-inflammatory, anti-apoptotic, and angiogenesis effects that are useful for relieving inflammation, recovery, and protection of lung tissues in COVID-19 patients. Secretome, a secretory product of MSCs, has several advantages over MSCs. We conducted a study to investigate secretomes’ effectiveness and safety profile as a treatment for severe COVID-19. Methods: A double-blind, multicenter, randomized, placebo-controlled trial was conducted between February 2021 and July 2021 in three top COVID-19 referral hospitals in the Greater Jakarta area, Indonesia. Eligible subjects (n=40) were randomized in a 1:1 ratio to an intervention group (n=20) and a control group (n=20). The primary outcome of this study was the changes in inflammatory markers and the ratio of inflammatory to anti-inflammatory markers. The secondary outcomes of this study included clinical outcome, laboratory outcome, radiological outcome, RT-PCR result conversion, and safety profile of MSC secretome. Results: Our analysis showed that on the 14th day after placebo administration, IL-6 level in the control group was significantly increased [4.110 (2.403–12.820) at baseline to 13.320 (2.958–33.285) on the 14th day after intervention, p=0.017]. The IL-6/IL-10 ratio in the control group was significantly increased (p=0.036) on the 14th day after placebo administration. We also found that most of the subjects who received placebo had high levels of IL-6 and ferritin (p=0.043) on the seventh day after the intervention. However, we found no significant differences in inflammatory marker levels on the seventh day and 14th day after intervention between both groups. There was no adverse event reported. There were no significant differences in the laboratory outcome, radiology outcome, RT-PCR result conversion, and safety profiles between both groups. Conclusions: MSC secretome can control inflammation in patients with severe COVID-19 and has a good safety profile. MSC secretome is a promising treatment modality for severe COVID-19.

PENGARUH KUALITAS PELAYANAN, KUALITAS PRODUK DAN HARGA TERHADAP KEPUASAN KONSUMEN DI RESTORAN YORICHI BBQ & SHABU-SHABU DEPOK DI MASA COVID19

One of the phenomena currently occurring in big cities in the Greater Jakarta area especially is the culinary issue of Shabu-Shabu and Grill with the All You Can Eat (AYCE) concept, where consumers can eat as much as they want for a specified time and only pay a certain price. With the main menu that is generally served is meat - fresh meat. This study aims to determine the effect of service, product quality and price on customer satisfaction at Yorichi BBQ and Shabu-shabu Depok restaurants. This research is quantitative with descriptive method. The sample of this study amounted to 80 respondents. Method of data analysis using multiple linear regression coefficient of determination. The results showed that: (1) service quality variables partially significant effect on customer satisfaction Yorichi; (2) The product quality variable has a partially significant effect on Yorichi customer satisfaction; (3) The price variable has a partially significant effect on Yorichi customer satisfaction; (4) The variables service quality, product quality and price simultaneously have a significant effect on Yorichi customer satisfaction; (5) Yorichi customer satisfaction is dominated by service quality, product quality, and price by 65.6%. While the rest is 34.4%, except for variables outside the model under study.

Determinants of Investment Decision in Cryptocurrency: Evidence from Indonesian Investors

This study aimed to determine the effect of behavior factors and social demography on the investment decision in cryptocurrency in the Greater Jakarta area. The method used in this study is partial least square (PLS) using the SmartPLS software application. The behavior factor variables used in this study are overconfidence, herd behavior, subjective norm, and awareness variables. This study also used social demography moderating variables in age, gender, occupation, education, and investment experience on 400 respondents in the Greater Jakarta area. The test results show that only overconfidence and awareness variables have a significant positive effect on decisions to invest in cryptocurrency and subjective norms variables that have no significant positive effect but can be moderated by social demographic factors such as age and investment experience. In addition, other variables have no significant positive effect. They cannot be moderated by social demographic factors such as age, gender, occupation, and investment experience on the decisions of cryptocurrency investors in Greater Jakarta area. Our study contributes to developing knowledge, insight, skills and analyzing researchers, especially regarding the influence of behavioral factors and social demography on investment decisions in cryptocurrency.

Implementation of performance measurement system with performance prism approach - a case study of a medium enterprise

Measuring performance is crucial, yet occasionally taken for granted by small and medium enterprise (SME). Building a good performance management system is therefore essential for SMEs. The research is a case study in a medium size enterprise in greater Jakarta area. The research assisted the studied company to develop performance indicators using performance prism approach. Afterwards, key performance indicators (KPIs) were finalised using analytical hierarchy process (AHP) and Pareto principle. Final KPIs were then measured and visualised using the traffic light system (TLS) and objective matrix (OMAX) calculation. The results show that the combination of approaches can give a systematic and simpler mechanism for the studied company and can become the bases for monitoring and action plan identification.