International Journal of Science, Technology & Management (IJSTM)
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Correlation of Macrozoobenthos Diversity Index with Physico-Chemical Factors in Lake Toba, Toba Samosir Regency
No full textThis study aims to determine the macrozoobenthos in Lake Toba, Toba Samosir Regency. This research was conducted from May to July 2018. Determination of research stations based on environmental baseline consisted of 4 stations, namely station 1 in Lumban Binanga Laguboti village, station 2 in Lumban Bul-bul Balige, station 3 in Lumban Binanga Sigumpar, and station 4 in Hutagaol Sigumpar. Samples were taken using Eckman Grab at 3 times at each station. The macrozoobenthos found consisted of two classes, three orders, eight families, 15 species with a total of 565 individuals. The species found were Brotia subgloriosa, Brotia peninsularis, Brotia castulata, Pomacea diffusa, Pomacea paludosa, Filopaludina polygramma, Filopaludina sp., Melanoides tuberculata, Lymnaea sp., Emilia sp., Corbicula sumatrana, Corbicula fluminea, Corbicula japonica, Pilsbryoconcha exilis, and Anodonta sp.. The macrozoobenthic species with the highest number of individuals was Corbicula sumatrana with 141 individuals and the least was Lymnea sp. by 1 individual. The macrozoobenthos ecological analysis included the average density of 2260, the average diversity index of 1.282, the average uniformity index of 0.633, and the average dominance of 0.390. Then correlated with physico-chemical factors using Pearson correlation (r). Correlation of diversity index with physico-chemical factors from the strongest to the weakest starting from depth and phosphate, turbidity, temperature, pH, BOD, and DO
Knowledge Sharing Behavior Model of Polytechnic Lecturer
Get PDFKnowledge sharing is very important for lecturers in implementing the tri dharma of higher education. By sharing knowledge, it will create creative ideas and innovations for lecturers. This study aims to find out how the behavior of sharing knowledge of polytechnic lecturers. Research on the knowledge sharing behavior of polytechnic lecturers has never been carried out. The research sample was 200 lecturers at the first six polytechnics in Indonesia. The behavior of sharing knowledge is seen from three factors: knowledge donating, knowledge collecting, and technology. The data was processed using LISREL 8.80. The results of the research are the dominant dimension in supporting the sharing of lecturers' knowledge. Polytechnics lecturer also tend to collecting more knowledge than share knowledge. This can be due to the lack of motivation of lecturers to share and competition. For this reason, polytechnic university management needs efforts to improve the culture of knowledge sharing among lecturers
Multi Objective Optimization in The Basic of Ratio (Moora) In Supporting Decision Making in Measuring Employee Performance Level Case Study PT. Padi Saga Utama
Get PDFStaff Employees are the most important assets or human resources owned by a company. in evaluating the work achievement of a staff, the company's management makes a ranking of work results for each work of its staff PT. Padi Saga Utama. The benefit of this research is to assist decision making to measure the level of staff performance who achieves the highest to lowest targets at PT. Padi Saga Utama. The sources used for this research are data taken from the company PT. Padi Saga Utama. The staff data processed were as many as 20 permanent staff who have been registered at PT Padi Saga Utama. data processing using the Multi Objective Optimization on The Basic of Ratio (Moora) method. The results of testing the Morra method obtained that the highest alternative calculation table score is R3 (0.2144), staff with good performance is R3. Based on the results of research conducted, the application of the Multi Objective Optimization method on the Basic of Ratio (Moora) is quite easy to use as the process of measuring the performance level of lecturers
Isolation of Chitosan From Dogol Shrimp Skin (Parapenaeopsis sculptilis)
Get PDFIn Indonesia, shrimp underwent a "cold storage" process where the heads, tails, and shells were discarded as waste. This shrimp waste could pollute the environment around the factory so it needed to be utilized. So far, shrimp shells had only been used as ingredients for making crackers, shrimp paste, and animal feed supplements. The remaining shrimp shells that had been separated were made into chitosan which was then subjected to characterization tests. The three steps of the chitosan isolation process were deproteinization, demineralization, and deacetylation. The analytical tests carried out were testing the water content, ash content, and functional groups contained in chitosan which were identified using the Fourier Transform Infra Red (FT-IR) Spectrophotometer. Based on the test results, there was a moisture content of 9.27% ??and an ash content of 1.69% in the chitosan samples made from shrimp shells. Functional groups of shrimp shell chitosan were identified using FT-IR characteristics. The -NH- group, which was represented by the N-H and O-H stretching groups, could be seen in the absorption band 1456.26 in the wave range 3000–30500. The conclusion of this study was that chitosan could be extracted from shrimp shells and meet the characterization criteria
How To Improve Business Performance Of Msmes In The Covid-19 Pandemic Through Knowledge Sharing
Get PDFMicro, 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
Production Of Antimicrobial And Bioactive Peptides From Bakasam Using Enterococcus Faecium 1.15 As A Starter
No full textThe Development Of Traditional Fermented Food Products Into Functional Food, Utilizing Indigenous Microorganisms, Represents A Novel Innovation. Lactic Acid Bacteria (Lab), Which Are Abundantly And Readily Isolated From Native Fermented Foods, Hold Promise For The Exploration Of Local Lab Strains – A Strategic Step Towards The Development Of ProbioticBased Foods In Indonesia. Enterococcus Faecium 1.15 Isolated From Bakasam Beef, Has Demonstrated The Capability To Produce Extracellular Proteases (4.83 U/Mg) And Displayed Inhibitory Effects Against Pathogenic Bacteria. The Production Of Bioactive Peptides, With A Size Less Than 30 Kda, Could Be Achieved Through Bakasam Fermentation Using E. Faecium 1.15 As A Starter For A Period Of 7 Days. This Study Promotes An Opportunity To Harness Local Microorganisms, Particularly Lab Strains In The Utilization Of Bioactive Peptides As Well As Enhancing The Nutritional Value Of Traditional Fermented Foods
The Effect of Job Rotation on Employee Performance with Motivation as a Mediating Variable
No full textThe research aims to provide empirical evidence of the influence of job rotation and motivation on employee performance. Further empirical evidence with motivation as a mediating variable between job rotation and employee performance. The research data is primary data with a research sample of 80 respondents. Data analysis using path analysis and has met classical assumption testing. The research results indicate that job rotation has no effect on employee performance, while motivation has a significant effect on employee performance. Furthermore, it was found that motivation did not mediate the effect of job rotation on employee performance. Job rotation for employees is not a factor that can improve performance so it is unable to motivate KPP Pratama Sidoarjo Selatan employees
Analysis Of Perfume Seed Inventory Control At PT. Perintis Kiprah Sampono (Case Study Of Aromania Perfumery Karawang)
Get PDFThis study aims to analyze the inventory control of perfume seeds at PT. Pioneer Gait Sampono (case study of aromania perfumery Karawang). The aim is to find out how far the inventory control of aromania perfume seeds has been running effectively and efficiently. The method used in this research is descriptive with a qualitative approach, using a purposive sampling technique. Data collection techniques by conducting observations, interviews and documentation, to test the validity and reliability by using a triangulation process including source triangulation, technical triangulation, and time triangulation. The results of this study indicate that there are constraints on the supply of perfume seeds, where consumer demand is not fulfilled due to empty supplies resulting in lost sales or disruption of the sales process at the company, but with the always better control analysis method used, it can control every good inventory starting from the process. ordering, receiving goods, checking goods, storing goods, the process of releasing goods, the lead time of goods arriving to the safety stock.
 
Estimation Of Greenhouse Gas Emissions At Gunung Kupang Final Processing Site Landfill Using The IPCC Method
Get PDFMethane gas (CH4) is one of the main Greenhouse Gases (GHG), which contributes 14.5% to global warming. The methane gas potential that can be created from final processing site landfills in 45 big cities in Indonesia in 2010 reached 11,390 tons of CH4/year or the equivalent of 239,199 tons of CO2/year. The decomposition process that occurs in the waste pile will produce methane emissions and be released into the atmosphere by 50-60%. Gunung Kupang final processing site is a final processing site that serves the Banjarbaru City area in addition to the Banjarbakula Regional final processing site, with waste coming in every day which continues to increase and has the potential to generate emissions. The purpose of this research is to analyze the characteristics in the form of waste generation and composition at the Gunung Kupang final processing site and to analyze the estimation of methane gas from the Gunung Kupang final processing site landfill activities using IPCC methods. The methods used in this study are the Intergovernmental Panel on Climate Change (IPCC). Total greenhouse gas emissions produced in the IPCC method from 2014-2020 were 1.49 Gg/year. In 2021-2024, it is estimated that methane produced using the IPCC method is 0.528 Gg/yea
The Role of Green Innovation to Achieve Sustainable Business Performance of MSMEs in the Covid-19 Pandemic
No full textThe Covid-19 pandemic has had a major impact on economic growth in Indonesia, one of which is for Micro, Small and Medium Enterprises (MSMEs). Thus, MSMEs need to improve their business performance in a sustainable manner to achieve the desired economic growth, one of which is through the adoption of green innovation. The purpose of this study was to analyze the relationship between the adoption of green innovation and sustainable business 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 371 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 green innovation has a positive and significant influence on sustainable business performance, especially on social performance and environmental performance, while it has no significant effect on economic performance