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Arman Harahap
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International Journal Of Science, Technology & Management (IJSTM)
Published by CV. Inara
ISSN : -     EISSN : 27224015     DOI : doi.org/10.46729
Core Subject : Science, Education, Agriculture, Engineering,
Aerospace Engineering Agriculture, Biological Sciences & Forestry Automotive Engineering Biochemistry, Genetics & Molecular Biology Chemical Engineering, Chemistry & Bioengineering Chemistry Civil Engineering, Building, Construction & Architecture Computer Science & IT Control & Systems Engineering Decision Sciences, Operations Research & Management Earth & Planetary Sciences Education Electrical & Electronics Engineering Energy Engineering Industrial & Manufacturing Engineering Mechanical Engineering Transportation
International Journal of Science, Technology & Management (IJSTM) is an international scholarly refereed research journal which aims to promote the theory and practice of science, technology, innovation, engineering and management.
Arjuna Subject : Teknik (semua kategori) - Teknik (Lain-Lain)
Articles 1,072 Documents
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Efficacy Of Indigenous Arbuscular Mycorrhizal Fungi And Liquid Organic Fertilizer For Promoting The Vegetative Growth Of Soybean Plants (Glycine max L.) On Ultisols Herdy Suparmanto; Husna Faad; Halim
International Journal of Science, Technology & Management Vol. 1 No. 4 (2020): November 2020
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v1i4.96

Abstract

Utilization of ultisols in Southeast Sulawesi may be approached by inoculating viable arbuscular mycorrhizal fungi (AMF) exposing plant growth-promoting activities to the growth of native economical plants. This study investigated a combination of AMF and liquid organic fertilizers from coconut husks to improve the growth of soybean plants grown on ultisols as one of the potential marginal soils in the region. The coconut husk served as an abundant, cheap, yet potential source for the preparation of liquid organic fertilizers. This study used two factorial design with four treatment levels. The first factor was designed for different AMF species (10 g/pots): control (M0), Acaulospora delicata (M1), Septoglomus constrictum (M2), and Claroideoglomus etunicatum (M3) while the second factor was designed for different concentration of liquid organic fertilizer (mL/pots): control (P0), 150 mL/pots (P1), 200 mL/pots (P2), and 250 mL/pots (P3). Based on ANOVA results, the independent application of AMF species and liquid organic fertilizers gave significant results in regards to the experimental variables such as plant height, number of leaves, leaf area, and stem diameter. The best combination of treatment was observed in the treatment using Septoglomus constrictum with the concentration of liquid organic fertilizer of 250 mL (M2P3) to yield the highest growth performance of soybean plants on ultisols.
Analysis of Households Prosperity of Mango Farmers in Situbondo Regency Puryantoro; Andina Mayangsari
International Journal of Science, Technology & Management Vol. 1 No. 4 (2020): November 2020
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v1i4.97

Abstract

Farmers' household income is an indicator of the level of prosperity by looking at the amount of expenses and family expenses. Mango production, which has increased every year, needs to be assessed according to the level of household poverty. The purpose of this study was to determine the household level of mango farmers in Situbondo Regency. The research location was determined purposively in the Makmur Jaya I Farmers Group, Jangkar District, Situbondo Regency. Population and sample with saturated sampling technique with a population as well as a sample of 25 respondents. Data were collected through primary data (direct interviews using a questionnaire) and secondary data from related agencies and literature related to this study. The data were analyzed by using quantitative descriptive analysis which was measured using Sajogyo's poverty theory. The prosperity level of the members of the Makmur Jaya I Farmer Group is in the decent living category of 64% and the moderate category of 36%. None of the mango farmers in this group are below the poverty line.
Effect of Profitability Ratios on Banking Capital Adequacy (Study at PT. Bank Rakyat Indonesia Tbk.) Ade Irma Suryani
International Journal of Science, Technology & Management Vol. 1 No. 4 (2020): November 2020
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v1i4.98

Abstract

The main function of a bank is based on banking law no. 7 of 1992 is as an intermediary institution. As an intermediary institution, banks must be able to maintain profitability ratios and capital adequacy ratios. This is because the capital adequacy ratio of a bank is an important benchmark for consumers or users of these banking services. The focus of this research is to determine how much influence the profitability ratio of a bank, namely the ratio of NIM, OEOI and ROE to the Bank's Capital Adequacy, namely the CAR variable. The research method used is quantitative analysis using multiple linear regression. The results showed that all profitability ratios had a simultaneous effect on bank capital adequacy. Meanwhile, for the individual effect, only the ROE variable has no effect, while the other variables, namely NIM and BOPO, have a partial effect on CAR.
Economic Performance of Indonesian Manuffacturing Ccompanies With Factors Dirvi Surya Abbas; Arry Eksandy; Mulyadi
International Journal of Science, Technology & Management Vol. 1 No. 4 (2020): November 2020
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v1i4.99

Abstract

purpose of this research is to determine the effect of Enterprise Risk Management (ERM), Inventory Intensity, Corporate Image and Intangible Asset to Economic Performance in manufacturing companies listed on the Indonesia Stock Exchange (IDX) for the 4-year period 2015-2018. This study population includes all manufacturing companies listed on the Indonesia Stock Exchange (IDX) for the 2015-2018 period. The sampling technique was using purposive sampling technique. Based on the predetermined criteria, 17 companies were obtained. The type of data used is secondary data obtained from the Indonesia Stock Exchange website. The analysis method used is linear regression analysis of panel data.The results showed that Inventory Intensity and Corporate had a significant effect on Economic Performance. while Enterprise Risk Management and Intangible Asset has no effect on intellectual capital.
Bioprospecting For Bacterial Endophytes Associated With Zingiberaceae Family Rhizomes In Sibolangit Forest, North Sumatera mamangkey, Jendri; Lucas William Mendes; Mada Triandala Sibero; Pilidai Endorina Nadapdap
International Journal of Science, Technology & Management Vol. 1 No. 1 (2020): May 2020
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v1i1.7

Abstract

The present study was conducted aiming to isolate and characterize endophytic bacterial isolates with antibacterial ability, phosphate solubilization, and proteolytic activity from rhizomes of the Zingiberaceae family (Etlingera sp., Globba patens, Globba pendula, and Zingiber multibracteata). Nineteen bacterial isolates were obtained from Zingiberaceae rhizomes with isolate codes of EZS27, EZS18, EZS19, EZS25, EZS16, EZS08, EZS09, EZS13, EZS20, EZS14, EZS10, EZS11, EZS03, EZS05, EZS06, EZS43, EZS45, EZS47, and EZS28. The screening of the endophytes for antibacterial activity was done through the paper disc method. Four bacterial isolates presented antibacterial activities. EZS06 isolate inhibited the growth of EPEC (11 mm), P. vulgaris ATCC 13315 (10 mm), and L. monocytogenes BTCC B693 (9 mm). Also, EZS20 isolate inhibited the growth of S. aureus ATCC 29213 (17 mm), EZS28 isolate inhibited MRSA ATCC 43300 (8.6 mm), and EZS45 isolate inhibited S. Epidermidis ATCC 12228 (9 mm). The EZS19, EZS03, and EZS16 isolates dissolved the phosphate most effectively. Eight isolates (EZS19, EZS47, EZS27, EZS25, EZS09, EZS20, EZS45, and EZS06) showed the best protease activity. In general, our results showed that the endophytic bacterial strains can be used as a new and useful antibacterial agent since it showed antibacterial activity and chemical diversity. Furthermore, it also has the potential for exploitation in a wide variety of medical, agricultural, and industrial areas.
Leadership Style, Work Motivation and Organizational Culture Mohammad Yahya Arief
International Journal of Science, Technology & Management Vol. 2 No. 2 (2021): March 2021
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v2i2.101

Abstract

The purpose of this study was to determine and analyze the influence of leadership style, work motivation and organizational culture on PG Employee Performance. Asembagus. The research method used is exploratory research, where variables are measured by a Likert scale. The data collection method was carried out by interview (interview), with a questionnaire and documentary study. The population in this study were all PG employees. Asembagus as many as 215 people. Withdrawal of the number of samples with the Slovin formula 68 people. Data processing using SPSS software, with descriptive analysis and hypothesis testing multiple linear regression analysis. The results showed that: (1) partially the leadership style variable affects the performance of PG employees. Asembagus (2) partially work motivation variables affect employee performance at PG. Asembagus; (3) partially organizational culture variables affect employee performance at PG. Asembagus; (4) Simultaneously there is a positive and significant influence between the variables of leadership style, work motivation and organizational culture on employee performance at PG. Asembagus.
The influence of Organizational Support and Management of Employee Performance Marketing in Mediation by Competence -, Magus Sitindaon; Hery Winoto Tj; Melitina Tecoalu
International Journal of Science, Technology & Management Vol. 2 No. 1 (2021): January 2021
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v2i1.102

Abstract

These studies identify and analyze the implications of organizational support, management support, and employee competence on employee performance marketing. The study population was all employees of the marketing BPR Nusantara Bona Pasogit Group Region of West Java and Banten, which amounted to 115 people. Probability sampling technique is made to sampling, a total of 115 respondents who are employees of the marketing BPR Nusantara Bona Pasogit Group Region of West Java and Banten became the sample in the study. This study uses the approach of analysis of structural equation (SEM) using smartPLS. The results of the analysis indicates organizational support has an influence on employee performance marketing at BPR Nusantara Bona Pasogit (NBP) Group Region of West Java and Banten, as well as management support affect the performance of employees marketing at BPR Nusantara Bona Pasogit (NBP) Group Region of West Java and Banten.Disampingitu found also that the support of the organization affect the competence of employees of marketing at BPR Nusantara Bona Pasogit (NBP) Group Region of West Java and Banten.
Decision Support System for Cloud Computing Service Selection Using the Weighted Product Method (Case Study: PT. Deptech Digital Indonesia) saputra, dedi; Kudiantoro Widianto; Tyas Setiyorini; Ibnu Alfarobi
International Journal of Science, Technology & Management Vol. 2 No. 1 (2021): January 2021
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v2i1.103

Abstract

The selection of cloud computing services requires careful consideration and review. Some aspects of the criteria that must be considered such as direct selection between services that take a long time and need to be done repeatedly. Decision Support System with Weighted Product (WP) method is an effective method because the time needed for calculation is much shorter. The purpose of this research is to apply Weighted Product (WP) method in the decision support system to choose cloud computing services where as a case study is PT Deptech Digital Indonesia, so that it can make it easier for companies to make decisions according to their needs. The calculation results using the WP method give preference to the top 3 services: Google Cloud, Amazon Web Services and Microsoft Azure. This proves that research with the WP method can be applied to various services that will be used in the future according to predetermined criteria. Based on these results, the system can recommend cloud computing services according to the needs and a good level of accuracy.
Peanut Productivity Under The Albizia Stand With Agroforestry System In Community Forest, Magetan East Java Indonesia Susanto, Anang; M Winarni; Parwi
International Journal of Science, Technology & Management Vol. 2 No. 1 (2021): January 2021
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v2i1.104

Abstract

An effort to meet the national food need is by utilizing productive forest areas under albizia stands. Food stuff such as peanuts can grow under albizia forest stands. The purpose of this research was to know success of agroforestry system implemented to tree after initial release of contract. This study was conducted under albizia stand of state forest Magetan in East Java. Research design was used in this study was randomized block design. 5- year- old albizia stages with 0%, 25%, 50 % trimming intensity with plant spacing of 3 m x 4 m, Albizia trees that used for this comparison as many as 90 albizia trees. Results showed that soil lies under 5-year-old albizia trees still produced peanut with highest weights 129 g/m and lowest weight 117 g/m2 while highest biomass about 115.10 g and lowest biomass about 98.23 g. Application of agroforestry system under 5-year-old albizia stand is still good and intensive, creating work, improving social welfare, local community opinion change into positive perceptions for forestry development, forest protection, forest fire prevention, reducing rapid forest degradation and environmental quality conservation of forest areas.
The relationship of Religiosity With Attitudes of Adolescents In Prevention of HIV/AIDS Infection Ns. Syam’ani; Desty Natalia Damayanthi; Berthiana T
International Journal of Science, Technology & Management Vol. 2 No. 1 (2021): January 2021
Publisher : Publisher Cv. Inara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46729/ijstm.v2i1.106

Abstract

HIV (Human Immunodeficiency Virus) and AIDS (Acquired Immuno Deficiency Syndrome) is one of the sexually transmitted diseases that attack the immune system of sufferers and can lead to death. This study uses the correlation with cross sectional approach. The sampling technique used in the study simple random sampling. Results:the results of the study showed respondents aged between 15-18 years old with 43 people sex men (53,1%), the female gender as much as 38 respondents (46.9%). The religiosity of young students the most in both categories as many as 53 respondents (65,4%) and attitude in the prevention of HIV/AIDS infection in the positive category as much as 64 respondents (79,0%). Based on the analysis provided by kendall's Tau (?) there is a meaningful relationship between religiosity and attitudes in the prevention of HIV infection/AIDS with the result p= 0.000 which means ? value <0.05. Based on these results it can be concluded there is a relationship between Religiosity with Attitudes of Adolescents In Prevention of HIV/AIDS Infection in Class XI SMAN 3 Palangka Raya.

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