International Journal of Science, Technology & Management

Prototyping Of Precission Farming Hydroponic Garden Using Arduino Using Design Thinking Method At Puriponic Greenhouse Depok

2023-03-20T01:51:47+00:00

This research discusses precision farming in hydroponic greenhouse using design thinking methods and sensors to
ensure process control and monitoring in hydroponic greenhouse. The place of research was conducted at
Puriponic Greenhouse Depok. During the Covid-19 pandemic there were social problems with many employee
quarantines. Quaranitine occurs, activities are carried out at home, and there also many effect of unemployment.
This will cause food problems for the community to be disrupted. This hydroponic system designs a system using
an Arduino device with 6 sensors to control and monitoring hydroponic greenhouse. The methodology used is
Design Thinking, the research time is 2022. The systems uses 6 sensors and 6 actuators. The result of this study
are the design of hydroponic system prototype along with an actuator to guarantee hydroponic control and
monitoring. The novelty of this system is the actuator of each sensor in guaranteeing control and monitoring of the
greenhouse.

The Effect of Dendrophthoe pentandra (L.) Miq Ethanol Extract on Malondialdehyde (MDA) in Hyperglycemic Rats

2023-03-20T01:51:44+00:00

Dendrophthoe pentandra (L.) Miq is a parasitic plant with medicinal potential found in 3000 other plant species. The duku parasite is usually considered a parasite on the duku plant and is often discarded because it is thought to interfere with the growth of the duku plant. The purpose of this study was to see the effect of the duku parasite leaf extract on the reduction of malondialdehyde (MDA) in hyperglycemic rats. MDA levels were measured by thiobarbituric acid-reactive substance (TBARS) assay with doses of duku mistletoe leaf ethanol extract of 400, 200, and 100 mg/kg BW. MDA levels were analysed using rat blood plasma, which was measured using a spectrophotometer at a wavelength of 532 nm. Oral administration of EEDBD 400, 200, and 100 mg/kg BW reduced MDA levels in hyperglycemic rats. However, only EEDBD 400 mg/kg BW showed a significant difference between the negative control (CMC-Na), but with glibenclamide and the normal groups, there was no significant difference.

Analysis Head Nurses' Leadership Styles to Staff Inpatient Nurses' Job Performance in Hospital

2023-03-20T01:51:40+00:00

This research explores and focuses on the nursing profession, because there is still a lack of research in knowing the relationship between nurse leadership styles and nurse performance. Data collection by interviews, questionnaires and observations on inpatient nurses at Rotal Prima Hospital Medan. This study tries to examine the influence of the Job Performance Nurse dimension which is influenced by the dimensions of the Transactional Leadership Style and the Transformational Leadership Style of Head Nurses. This research is associative, with a quantitative method approach, using a descriptive correlational research design. The research was validated using SPSS-26 with data analysis techniques using multiple linear regression analysis. The results showed that the Transactional Leadership Style and Transformational Leadership Style had a positive and significant effect on Nurse Job Performance. The results of this study, we found that nurse leaders must have a good transformational leadership style so that leaders can help and encourage their subordinates in providing training and achieving their work goals properly. Nurse leaders are more likely to adopt a transformational leadership style. The results of this study also show that transactional leadership can affect nurse performance, although it is even better if the head nurse performs transformational leadership.

The Influence of Financial Knowledge and Financial Attitudes on Financial Management Behavior: A Study of Food and Beverage Micro-Entrepreneurs in Sail District, Pekanbaru City

2023-03-20T01:51:36+00:00

This study aims to determine whether financial knowledge influences financial management behavior, to determine whether financial attitudes affect financial management behavior, and to determine whether financial knowledge and financial attitudes influence financial management behavior. The research method used is quantitative method and uses secondary data and primary data. Primary data was obtained from respondents who were collected through a questionnaire consisting of 19 questions. The sample consisted of 76 respondents from a population of 314 business actors using the cluster sampling technique. The scale of measurement uses a Likert scale. Data analysis included: validity test, reliability test, multicollinearity test, heteroscedasticity test, normality test, multiple linear regression test, t test, f test, and test of the coefficient of determination. The data analysis technique of this research uses SPSS. The findings of this study show that (1) financial knowledge has a significant influence on financial management behavior in micro business actors in Sail District, (2) financial attitudes have a significant influence on financial management behavior in micro business actors in Sail District, and (3) financial knowledge and financial attitudes have a significant influence on financial management behavior in micro business actors in Sail District.

Strengthening The Defense Industry's Independence Through The Internet Of Things In The Manufacturing Sector: A Review

2023-03-20T01:51:34+00:00

Digitalization is needed by manufacturing companies in organizing sustainable, data-driven, effective and efficient, safe defence and security equipment production activities. Utilization of Internet of Things (IoT) in Indonesia is said to still have many deficiencies, resulting in many cases of data leakage, both government and private sector data. The purpose of this research is to review the conditions of the use of the IoT in various industrial sectors, the challenges, and the potential for development in the Indonesian defence industry. A literature review approach is combined with a qualitative method in this study. The results of this study found that the application of IoT to Indonesia's defence industry is necessary in order to increase the level of local content, complement and strengthen defence and security equipment, and reduce the burden of production activities. In addition to production needs, IoT can filter information or data on weapons or combat vehicles when used in field tasks and then become the basis for making subsequent products.

Learn Muay Thai Basic Movement in Virtual Reality and Sattolo Shuffle Algorithm

2023-03-20T01:51:31+00:00

Muay Thai is a martial art from Thailand that uses punches and various clinching movements. Muay Thai is one martial art whose popularity is growing and is in great demand, including in Indonesia. However, very few people still know the basics of this Muay Thai martial art. Therefore, a media that can introduce Muay Thai martial arts is needed. In this study, to introduce the basic movements of Muay Thai martial arts, Virtual Reality technology is used, which aims to make it easier for users to understand and practice basic Muay Thai movements correctly. In this study, the method used to design virtual reality games is the Sattolo Shuffle algorithm which functions to generate unique and different randomized Muay Thai movement animation results. To measure the level of user acceptance of learning Muay Thai using VR technology, the GUESS method is used. From the result of GUESS method, it was found the user acceptance rate is 83.84%, which means the user is "satisfied" with the application that has been made to learn basic Muay Thai. Based on this level of acceptance, it can be concluded, that the virtual reality game introducing Muay Thai using the sattolo shuffle algorithm can be used as an alternative tool to learn basic Muay Thai.

The Effect Of Transformational Leadership And Competence On Performance Through Compensation As An Intervening Variable

2023-03-20T01:51:28+00:00

This study aims to determine and analyze the influence of leadership and competence on
employee performance, locus of study at Bapedalitbangda Pangkalpinang City, with a
total of 53 respondents. Data collection was carried out by distributing questionnaires,
with data processing techniques using the PLS SEM model. From the test results, it was
found that leadership style has a positive and significant effect on performance and
compensation. Compensation has a positive and significant effect on performance, but
competence has a positive but not significant effect on performance. Compensation has
a positive but not significant effect on compensation. The effect of leadership style on
performance with compensation as an intervening variable has a positive and
significant effect, and the effect of competence on performance with compensation as an
intervening variable shows positive results but not significantly. In improving the
performance of Bappedalitbangda Pangkalpinang City employees, it is better to pay
more attention to leadership style, increase competence, improve compensation so that
it has a significant influence in improving employee performance according to
performance evaluation and their respective duties and functions.

The Effect of Job Stress, Job Satisfaction and Emotional Intelligence on Turnover Intention

2023-03-20T01:51:16+00:00

The purpose of this study was to examine and analyze the effect of job stress, job satisfaction, and emotional intelligence on turnover intention in employees of PT. ISS Indonesia Bintaro. Methods This research uses the causality method. The population in this study were all employees of PT. ISS Indonesia Bintaro. The number of samples used was as many as 150 respondents. Data analysis method using Partial Least Square (PLS). The results of this study are as follows: Job stress has a significant positive effect on turnover intention in employees of PT ISS Indonesia. Job satisfaction has a significant negative effect on the turnover intention of PT ISS Indonesia employees. Emotional intelligence has a significant negative effect on the turnover intention of PT ISS Indonesia employees.

Yield Potential Of Indonesian Jatropha New Variety (Jet-1 Agribun) Under Rainfed Condition

2023-03-20T01:51:14+00:00

Jet-1 Agribun is one of the Indonesian Jatropha new varieties suitable for rainfed areas with a high yield of dry seed and oil content. The field trial was conducted at Asembagus Experimental Station in Situbondo, East Java from February to December 2019 and aimed to observe the potential of Jatropha Jet-1 Agribun under rainfed conditions. Observation on seed yield and growth components of Jatropha plantation was also made in two and three years old Jet-1 Agribun. Results of the observation showed that Jet-1 Agribun in the first year produced seed 471.8 kg/ha. A two-year-old plant produced a dry seed of 3,958.7 kg/ha. Three-year-old plants after pruning produced dry seed 910.95 kg/ha and 916.04 kg/ha at 1 m x 1 m and 2 m x 2 m, respectively, indicating that wider spacing is more allowable for cropping with food crops until the canopy closes. Development of Jatropha should be integrated with food crops or other crops through intercropping systems, by using the land around the plants until the canopy closes.

The Effect Of Audit Committee, Internal Auditor And Audit Quality On Firm Value

2023-03-20T01:51:11+00:00

This study aims to determine the effect of internal auditor on company value, audit quality on company value, internal audit on company value with the audit committee as a moderating variable and audit quality on company value with the audit committee as a moderating variable in consumer goods sector companies listed on the Indonesia Stock Exchange for the 2017-2020 period. This research was conducted using quantitative methods with a casualty approach. This study totaled 54 companies and was sampled as many as 12 companies using the purposive sampling method. Data analysis using SPSS version 25. Based on the results of partial and Moderated Regression Analysis (MRA), it can be concluded that: 1) Internal Auditor does not have a significant effect on Company Value, 2) Audit Quality has a significant effect on Company Value, 3) The Audit Committee cannot moderate the influence of Internal Auditor on Company Value, 4) The Audit Committee can moderate the effect of Audit Quality on Company Value.

Clone Characteristics Of Sil 04, 6535, Ps 881, And Bululawang Polycross

2023-03-20T01:51:08+00:00

Indonesia’s sugar productivity is low and requires improvement. Producing new superior sugar varieties may increase sugar productivity. In 2019, a polycross between female SIL 04 and male 6535, PS 881, and Bululawang made 11 potential clones. Therefore, it is necessary to determine each clone's characteristics. This research aimed to determine superior clones that generate higher crystal production than the female parents. The research location was the Agricultural Technology Research and Assessment Installation (Instalasi Penelitian dan Pengkajian Teknologi Pertanian - IP2TP) Karangploso from December 2020 until November 2021. The clones and female parents (SIL 04) were arranged in a Randomized Block Design using 2 replications. The research result showed that 9 clones (MLG 19/P6/1, MLG 19/P6/4, MLG 19/P6/5, MLG 19/P6/6, MLG 19/P6/8, MLG 19/P6/9, MLG 19/P6/11, MLG 19/P6/13 and MLG 19/P6/16) produced more crystals (7.07-12.95 t/ha) than the female parents (5.82 t/ha). To sum up, increasing sugarcane productivity improves crystal yields.

Simultaneous Analysis of Tablets Content Vitamin C And Zinc In Visible Spectrophotometry

2023-03-20T01:51:04+00:00

Most drugs on the market contain multiple active ingredients, each of which is intended to enhance the drug's therapeutic effect and ease of administration. Determination of the levels of efficacious substances in drug preparations is essential for agencies that conduct drug determinations, such as the Food and Drug Supervisory Agency (BPOM) and the drug industry; therefore, a rapid and dependable analytical method, as well as relatively inexpensive and easily accessible tools and operational costs, are required. In practice, however, it can produce accurate and precise results. This research will be conducted by optimizing the solvent and simultaneously analyzing the levels of Vitamin C and Zinc in the tablet preparation without any separation step using visible spectrophotometry. Vitamin C and Zinc were found to be soluble in a mixture of methanol and water with a ratio of 50:50 after a single examination with the addition of the complexing agent dhitizon at a concentration of 0.1%, which produced a pink color. Calculation of Vitamin C and Zinc's linearity. The linearity value described is the correlation coefficient value for both Vitamin C and Zinc, which is very close to one, indicating an excellent relationship between the drug concentration and the absorbance value. This also suggests that absorbance will increase as concentration increases. The method validation requirements for linearity, accuracy, and precision as well as the limit of detection (LOD) and the limit of quantification (LOQ) were met by the analytical method validation with promising results.

Line Balancing Method As An Effort To Improve Cable Production In Pt Kmi Wire And Cable Production Management

2023-03-20T01:51:01+00:00

Write Line Inner Sheating at PT. KMI Wire and Cable has idle time due to
processing time on Unbalanced work stations sometimes cause stop lines. From
calculations it is known that the cycle time gap / cycle time obtained is as big as
109.2 seconds and the figure is taken based on the biggest time from 6 stations
existing work. The author intends to examine the causes of its occurrence processing
time delays that occur on the Inner Sheating line and deliver give suggestions for
future improvements. This research uses line balancing method and production
system layouts. Among them is looking for the cycle time at the 6 largest stations as
a reference in determining the next calculation, calculating the company's capacity,
determining the efficiency of the machine, calculating the number of machines,
adding the number of machines and additional floor area. Data is taken from field
observations and records. The author uses two methods, namely the line balancing
method and the system method production layout. he line balancing method and
production layout system that has been carried out can be causing it to be able to
meet market demand of 17,688 coils / month with the addition of machines / work
stations, the required floor area is 14 m² with details, 7 m² at the Inner Sheat
workstation and 7m² at the Outer Sheat station.

Correlated Naïve Bayes Algorithm to Determine Healing Rate of Hepatitis Patients

2023-03-20T01:50:58+00:00

The Correlated Naïve Bayes Algorithm is a statistical learning method that has shown promise in predicting the healing rate of hepatitis patients. Hepatitis is a liver disease that can be chronic or acute and affects millions of people worldwide. The healing rate of patients with hepatitis can vary widely depending on various factors such as age, gender, and medical history. The Correlated Naïve Bayes Algorithm takes into account the correlations between the different attributes of patients and their healing rates, unlike the traditional Naïve Bayes Algorithm. This approach has been shown to improve the accuracy of predictions significantly. In this study, the Correlated Naïve Bayes Algorithm was applied to a dataset of hepatitis patients. The dataset contained information about patients' age, gender, medical history, and other attributes that might affect their healing rates. The algorithm was trained on this dataset to predict the healing rate of new patients. The results showed that the Correlated Naïve Bayes Algorithm achieved higher accuracy in predicting the healing rate of hepatitis patients compared to the traditional Naïve Bayes Algorithm. This suggests that the Correlated Naïve Bayes Algorithm could be a useful tool for healthcare professionals in predicting the healing rate of hepatitis patients, and ultimately improving their treatment and care. Furthermore, the study also investigated the importance of different attributes in predicting the healing rate of hepatitis patients. The results showed that age and medical history were the most important factors, followed by gender and other attributes. The findings of this study have significant implications for the medical community, as accurate prediction of healing rates can inform treatment decisions and improve patient outcomes. The Correlated Naïve Bayes Algorithm provides a powerful tool for healthcare professionals in predicting the healing rate of hepatitis patients, and could be extended to other medical conditions. However, it is important to note that the Correlated Naïve Bayes Algorithm has limitations, such as the assumption of independence between attributes. Therefore, future research should investigate alternative methods that can overcome these limitations and improve the accuracy of predictions further.

Effect Of Sea Moisture Content On Corrosion Hull Of A Warship Made By PT Pal Indonesia

2023-03-20T01:50:54+00:00

Seawater temperature ranges from -2 0 c to 300 c. Low temperatures are usually found in seawater
around the poles and on the deep seabed. Meanwhile, high seawater temperatures are found in the sea
in the Arid area. The Red Sea and Bab El Mandeb have temperatures of about 290 c to 300. Corrosion
is a subject matter that concerns various disciplines, or in other words, it connects elements of physics,
chemistry, metallurgy, electronics and engineering. This study uses the literature review study method
to collect, identify, evaluate the effect of seawater content on the corrosion of the hulls of warships
made by PT Pal Indonesia. An effective corrosion control strategy should be selected with the selection
of suitable coatings for the marine environment. Hull plating with paint has a special function to protect
the construction of the hull, especially those located below the waterline and the construction of the
ship above the waterline.

Phytochemical Screening of Phaleria macrocarpa (Scheff.) Boerl.) and Antibacterial Activity Test of Ethanol Extract Against Staphylococcus aureus Bacteria

2023-03-20T01:50:51+00:00

Phaleria macrocarpa is known as one of the medicinal plants in Indonesia. Almost all parts of the plant have chemical content that is useful for being used as medicine. The growing use of crown plants by the community for various diseases requires a series of tests to obtain traditional medicine preparations that are safe for human use. The purpose of this study was to identify the content of secondary metabolite compounds (alkaloids, flavonoids, saponins, tannins, steroids, triterpenoids, and glycosides) and the antibacterial activity of Staphylococcus aureus with the good method because the good method has the advantage that it is easier to measure the area of the inhibition zone formed because an antibacterial activity is not only on the upper surface of nutrient agar but also at the bottom. The results of phytochemical screening showed that the flesh of Phaleria macrocarpa (Scheff). The results of testing the antibacterial activity of an ethanol extract of crown Phaleria macrocarpa (Scheff) fruit flesh (Boerl) were positive for alkaloids, flavonoids, glycosides, saponins, tannins, and steroids. Boerl.) showed effective results at a concentration of 40 mg/ml against Staphylococcus aureus bacteria with an inhibition zone diameter of 14 mm; the antibacterial activity was categorized as strong.

The Influence of BI Rate, Inflation, and Exchange Rate on The IDX Composite Stock Index (IHSG)

2023-03-20T01:50:47+00:00

This study investigates the impact of variations in the BI rate, inflation rate, and the USD/IDR (US Dollar to Indonesian Rupiah) exchange rate on the IDX Composite Index (IHSG). The Composite Stock Price Index is one of the resources that investors use to choose their investing strategy. Inflation, exchange rates, business interest rates, and the IHSG are among the variables that make up the sample used in this study, which spans 60 months from January 2015 to December 2019. The analysis of the data was done using multiple regression methods. According to the findings, the IHSG is negatively impacted by changes in the BI rate, positively impacted by changes in the USD/IDR exchange rate, and not impacted at all by changes in the inflation rate. Additional analysis should look at additional potential macroeconomic factors.

Determinant Factors Customer Satisfaction and its Implication on Customer Loyalty: From the Perspective of Customers of Vespa

2023-03-20T01:50:45+00:00

This study intends to examine the relationship between brand equity, product quality, and service quality, as well as their partial and simultaneous effects on consumer satisfaction and loyalty. Path analysis is the data processing technique employed by researchers. 100 Vespa customers served as the sample for this study's respondents. Primary data were gathered as a consequence of respondents' responses to the questionnaires that were sent out. According to the findings from the first equation, brand equity, product quality, and service quality all have a simultaneous and partial impact on customer happiness. According to the study's findings, the variables of product quality, service quality, brand equity, and customer happiness have a simultaneous and partial impact on customer loyalty based on the second equation.