Garuda - Garba Rujukan Digital

Aktifitas Selulolitik dan Patogenisitas Bacillus cereus_TSS4 dari Serasah Daun Mangrove Yustiana Dewi; Robin Robin; Eva Prasetiyono; Ardiansyah Kurniawan
Depik Vol 9, No 1 (2020): April 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.1.12748

Abstract. Leaf litter of mangrove has the potential for cellulolytic bacteria that are beneficial in aquaculture feed. Tin mining in Bangka Island impact for mangrove and allows for new strains of cellulolytic bacteria. Identification and safety evaluations are needed to knows the applied to aquaculture. This study aims to obtain and evaluate the potential impact on the aquaculture of cellulolytic bacteria from the Tukak Sadai mangrove, South Bangka. The effects were shown on the survival and clinical symptoms of fish through pathogenicity testing of the selected bacteria. This research was done from March 2017 until March 2018. Leaf litter was a sample taken from mangroves and isolated using 1% Carboxymethyl Cellulosa (CMC) media. Qualitative test of cellulase enzyme activity uses congo red and bacterial identification to use biochemical characterization with Microbact TM. There were six cellulolytic bacterial isolates from the mangrove leaves of Tukak Sadai, South Bangka. TSS4 isolates had the highest cellulolytic index of 26.4 mm compared to other strains. Biochemical characterization of TSS4 isolates show similarities with Bacillus cereus. Pathogenicity test on Bacillus cereus_TSS4 isolates show that it was not pathogenic with normal fish conditions until the end of maintenance, fish survival reached 100%, and no damage to internal organs occurred.Keywords: Bacillus cereus, mangrove leaf litter, pathogenicity, cellulolytic bacteriaAbstrak. Serasah daun mangrove memiliki potensi bakteri selulolitik yang bermanfaat pada pakan dalam akuakultur. Penambangan timah di Pulau Bangka berdampak pada hutan bakau dan memungkinkan strain bakteri selulolitik baru. Identifikasi dan evaluasi keamanan diperlukan untuk mengetahui penerapan pada budidaya. Penelitian ini bertujuan untuk mendapatkan dan mengevaluasi dampak potensial pada akuakultur dari bakteri selulolitik hutan bakau Tukak Sadai, Bangka Selatan. Dampaknya ditunjukkan pada kelangsungan hidup dan gejala klinis ikan melalui pengujian patogenisitas dari bakteri yang dipilih. Penelitian ini dilakukan mulai Maret 2017 hingga Maret 2018. Serasah daun merupakan sampel yang diambil dari mangrove dan diisolasi menggunakan media Carboxymethyl Cellulosa (CMC) 1%. Uji kualitatif aktivitas enzim selulase menggunakan congo red dan identifikasi bakteri untuk menggunakan karakterisasi biokimia dengan MicrobactTM. Ada enam isolat bakteri selulolitik dari daun mangrove Tukak Sadai, Bangka Selatan. Isolat TSS4 memiliki indeks selulolitik tertinggi 26,4 mm dibandingkan dengan jenis lainnya. Karakterisasi biokimia isolat TSS4 menunjukkan kesamaan dengan Bacillus cereus. Uji patogenisitas pada isolat Bacillus cereus_TSS4 menunjukkan bahwa tidak patogen dengan kondisi ikan normal sampai akhir pemeliharaan, kelangsungan hidup ikan mencapai 100%, dan tidak terjadi kerusakan pada organ internal.Kata kunci: Bacillus cereus, serasah daun mangrove, patogenisitas, bakteri selulolitik

PENINGKATAN KAPASITAS PRODUKSI IKAN MELALUI TEKNOLOGI ORGANIC WASTE TRAP DALAM SISTEM POLIKULTUR BAGI PEMBUDIDAYA IKAN DI DESA TUA TUNU, KOTA PANGKALPINANG Eva Prasetiyono; Denny Syaputra; Robin Robin
Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung Vol 2 No 2 (2015): Jurnal Pengabdian Kepada Masyarakat Universitas Bangka Belitung
Publisher : Lembaga Penelitian dan Pengabdian kepada Masyarakat Universitas Bangka Belitung

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33019/jpu.v2i2.133

Fish farming activities carried out by fish farmers often face problems that cause production activities to be not optimal. In fact, increasing production capacity is very important to increase profits. Problems that often arise are basically common. However, due to a lack of mastery of technology and production management, these problems become a major obstacle to optimizing business activities. Fish farmers in Tua Tunu Village, Pangkalpinang City are fish farmers engaged in freshwater fish farming activities, especially catfish (Pangasius pangasius). So far, fish farming activities carried out by fish farmers have faced problems caused by two main factors, namely poor water quality in aquaculture ponds due to waste from feed and fish feces and lack of diversification of fish farming commodities. The purpose of this activity is to provide science and technology applications in the form of technology to minimize aquaculture waste and aquaculture technology systems so that the production capacity of fish farmers increases. This activity was carried out in fish farming ponds owned by fish farmers in Tua Tunu Village, Pangkalpinang City.The specific target is to increase the production capacity of fish farming with the application of technology in all fish farming ponds for fish farmers in Tua Tunu. The method used is a survey method by conducting fish farming activities by inserting technology applications in the form of organic waste trap technology and polyculture system technology. The results obtained show that the production capacity of the pond and the harvest of the fish farmers are more optimal. The results of the activity show that the fish farmer partners can harvest more types of fish and more profits. The water quality in the fish farming media is better. The good water quality from the application of this technology can be seen physically from the color of the water with a lower level of turbidity by suspended solids from feed compared to ponds that do not use this technology.

Aktifitas Selulolitik dan Patogenisitas Bacillus cereus_TSS4 dari Serasah Daun Mangrove Yustiana Dewi; Robin Robin; Eva Prasetiyono; Ardiansyah Kurniawan
Depik Vol 9, No 1 (2020): April 2020
Publisher : Faculty of Marine and Fisheries, Universitas Syiah Kuala

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.13170/depik.9.1.12748

Abstract. Leaf litter of mangrove has the potential for cellulolytic bacteria that are beneficial in aquaculture feed. Tin mining in Bangka Island impact for mangrove and allows for new strains of cellulolytic bacteria. Identification and safety evaluations are needed to knows the applied to aquaculture. This study aims to obtain and evaluate the potential impact on the aquaculture of cellulolytic bacteria from the Tukak Sadai mangrove, South Bangka. The effects were shown on the survival and clinical symptoms of fish through pathogenicity testing of the selected bacteria. This research was done from March 2017 until March 2018. Leaf litter was a sample taken from mangroves and isolated using 1% Carboxymethyl Cellulosa (CMC) media. Qualitative test of cellulase enzyme activity uses congo red and bacterial identification to use biochemical characterization with Microbact TM. There were six cellulolytic bacterial isolates from the mangrove leaves of Tukak Sadai, South Bangka. TSS4 isolates had the highest cellulolytic index of 26.4 mm compared to other strains. Biochemical characterization of TSS4 isolates show similarities with Bacillus cereus. Pathogenicity test on Bacillus cereus_TSS4 isolates show that it was not pathogenic with normal fish conditions until the end of maintenance, fish survival reached 100%, and no damage to internal organs occurred.Keywords: Bacillus cereus, mangrove leaf litter, pathogenicity, cellulolytic bacteriaAbstrak. Serasah daun mangrove memiliki potensi bakteri selulolitik yang bermanfaat pada pakan dalam akuakultur. Penambangan timah di Pulau Bangka berdampak pada hutan bakau dan memungkinkan strain bakteri selulolitik baru. Identifikasi dan evaluasi keamanan diperlukan untuk mengetahui penerapan pada budidaya. Penelitian ini bertujuan untuk mendapatkan dan mengevaluasi dampak potensial pada akuakultur dari bakteri selulolitik hutan bakau Tukak Sadai, Bangka Selatan. Dampaknya ditunjukkan pada kelangsungan hidup dan gejala klinis ikan melalui pengujian patogenisitas dari bakteri yang dipilih. Penelitian ini dilakukan mulai Maret 2017 hingga Maret 2018. Serasah daun merupakan sampel yang diambil dari mangrove dan diisolasi menggunakan media Carboxymethyl Cellulosa (CMC) 1%. Uji kualitatif aktivitas enzim selulase menggunakan congo red dan identifikasi bakteri untuk menggunakan karakterisasi biokimia dengan MicrobactTM. Ada enam isolat bakteri selulolitik dari daun mangrove Tukak Sadai, Bangka Selatan. Isolat TSS4 memiliki indeks selulolitik tertinggi 26,4 mm dibandingkan dengan jenis lainnya. Karakterisasi biokimia isolat TSS4 menunjukkan kesamaan dengan Bacillus cereus. Uji patogenisitas pada isolat Bacillus cereus_TSS4 menunjukkan bahwa tidak patogen dengan kondisi ikan normal sampai akhir pemeliharaan, kelangsungan hidup ikan mencapai 100%, dan tidak terjadi kerusakan pada organ internal.Kata kunci: Bacillus cereus, serasah daun mangrove, patogenisitas, bakteri selulolitik

The Role of Financial Inclusion in the Industrial World Faris Ramadhan; Robin Robin
International Journal of Economics, Commerce, and Management Vol. 1 No. 3 (2024): July : International Journal of Economics, Commerce, and Management
Publisher : Asosiasi Riset Ekonomi dan Akuntansi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/ijecm.v1i3.196

This study examines the multifaceted impact of financial inclusion on industrial societies, focusing on its role in economic growth, social equity, digital transformation, and industrial development. Using a mixed-method approach combining systematic literature review and case studies from five industrial countries (Germany, South Korea, the United States, China, and Brazil), we analyze the mechanisms through which financial inclusion influences societal outcomes. Our findings reveal that financial inclusion significantly contributes to economic growth, with a 10% increase in inclusion indicators associated with a 0.2-0.7% rise in GDP growth rates. Moreover, we identify synergistic effects between financial inclusion and digital transformation, notably in mobile banking adoption. The study also highlights persistent challenges, including urban-rural divides and gender disparities in financial access. Cross-cutting themes emerge, emphasizing the importance of integrated policy approaches, regulatory innovation, and public-private partnerships in advancing financial inclusion. These insights offer valuable guidance for policymakers and financial institutions in designing effective strategies to leverage financial inclusion for sustainable and equitable economic development in industrial contexts.

The Influence Of Personal Capability, Technological Sophistication And Utilization Of Technology On Accountant Performance With The Effectiveness Of Accounting Information Systems As An Intervening Variable In Riau Islands Shipping Companies Eko Prihananto; Bambang Satriawan; Robin Robin
International Journal of Economics, Commerce, and Management Vol. 1 No. 4 (2024): October : International Journal of Economics, Commerce, and Management
Publisher : Asosiasi Riset Ekonomi dan Akuntansi Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/ijecm.v1i4.205

This study aims to determine the direct and indirect effect of personal capability, sophistication and utilization of technology on accountant performance with the effectiveness of accounting information systems as an intervening variable in riau islands shipping COMPANIES. The population in this study were all accountants owned by shipping companies under the auspices of the Indonesian National Shipowners' Association Riau Islands, namely 31 companies and each company had at least 2 finance department people. So that the population in this study were 103 respondents. To get a sample that describes the population, this research uses a saturated sample method, where the entire population is sampled, namely 103 accountants. The results of this study personal capability has a positive and significant effect on the accounting information system. Technological sophistication has a positive and significant effect on the accounting information system. Utilization of technology has a positive and significant effect on the accounting information system. Personal capability has a positive and significant effect on accountant performance. Technological sophistication has a positive and significant effect on accountant performance. Utilization of technology has a positive and significant effect on accountant performance. Accounting information system has a positive and significant effect on accountant performance. Personal capability indirectly has a significant effect on accountant performance through the accounting information system. In other words, personal capability significantly mediates the relationship between personal capability and accountant performance. Personal capability indirectly has a significant effect on accountant performance through accounting information system. In other words, technological sophistication significantly mediates the relationship between technological sophistication and accountant performance. Indirect utilization of technology has a significant effect on accountant performance through accounting information system. In other words, technology utilization significantly mediates the relationship between technology utilization and accountant performance.

The Influence Of Targeting And Relational Marketing On Customer Purchasing Decisions Cv. Putra Mas Pratama Robin Robin; Devi Devi; Angeline Florencia
Digital Innovation : International Journal of Management Vol. 1 No. 3 (2024): Digital Innovation : International Journal of Management
Publisher : Asosiasi Riset Ilmu Manajemen Kewirausahaan dan Bisnis Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61132/digitalinnovation.v1i3.24

The research conducted examined the influence of independent variables—targeting (X1) and relationship marketing (X2)—on the dependent variable, purchase decision (Y). The findings revealed that both targeting and relationship marketing individually have a positive and significant impact on customer purchase decisions at CV. Putramas Pratama Medan. Additionally, when considered together, targeting and relationship marketing significantly influence customer purchase decisions at the company. Based on these results, it is recommended that CV. Putramas Pratama should expand its target market to increase consumer responsiveness to the company's product offerings. Furthermore, the company should focus on building consumer trust by paying close attention to customer needs and feedback. This dual approach of broadening the target market and enhancing relationship marketing is expected to improve customer purchase decisions significantly.

Pertumbuhan Ikan Mas Koki pada Sistem Vertiqua (Vertical Aquaculture) Nadyra Esa Oktaviani; Robin Robin; Neneng Nurbaeti
Fauna: Jurnal Kajian Ilmu Hewani Vol. 2 No. 2 (2024): Desember: Fauna: Jurnal Kajian Ilmu Hewani
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/fauna.v2i2.88

This research was carried out for approximately 1 month from 17 January – 05 March 2022. In situ measurements included temperature (Suhu), acidity (pH), and dissolve oxygen (DO). Directly in the Lab. Aquaculture Biotechnology Fakulty of Agriculture University of Muhammadiyah Sukabumi. the test included testing the ex situ water quality at the IPB University Laboratory. Testing ammonia and alkalinity. The results of the above objectives show a comparison of the growth of water quality in the vertiqua system (Vertical Aquaculture), to determine the effectiveness of the vertiqua system in goldfish cultivation on growth, feeding effeciency, and water quality.

The Influence Of Job Satisfaction And Work Motivation On Teacher Performance At Public Senior High School 9 Medan Silvia Sofyan; Ferry Hidayat; Robin Robin; Dina Wulandari
International Journal of Economics and Management Research Vol. 3 No. 2 (2024): August: International Journal of Economics and Management Research
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/ijemr.v3i2.207

The research carried out identified the influence between independent (free) variables and dependent (bound) variables, where the independent (free) variables were job satisfaction (X1) and work motivation (X2) and the dependent (bound) variable was teacher performance. (Y). The research results show that partially job satisfaction and work motivation have a partial positive and significant influence on teacher performance at Public Senior High School 9 Medan schools. Furthermore, simultaneously job satisfaction and work motivation have a significant influence on teacher performance at Public Senior High School 9 Medan. The advice that can be given in this research is that all teachers at Public Senior High School 9 Medan must work well, and get motivation from the senior teachers there so that they can work better.

Efisiensi Kerapatan Tananaman Pakcoy (Brassica Rapa) terhadap Kualitas Air untuk Mendukung Kelangsungan Hidup Ikan Nila Asnan Ridoanrisna; Robin Robin; Novita MZ
Zebra: Jurnal Ilmu Peternakan dan Ilmu Hewani Vol. 2 No. 2 (2024): Oktober : Zebra: Jurnal Ilmu Peternakan dan Ilmu Hewani
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewani Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/zebra.v2i2.72

Asnan Ridoanrisna. Efficiency Of Pakcoy Plants (Brassica Rapa) In Maintaining Water Quality To Support The Survival Rate Of Tilapia. Under Guidance By Robin And Novita Mz. Tilapia is a freshwater fish commodity with high economic value. According to data from the Central Bureau of Statistics (BPS), tilapia exports reached 12.29 thousand tons with a value of USD 78.44 million. Tilapia farming faces the risk of mortality which can lead to economic losses, one of which is caused by organic pollution. To address this issue, this research employs phytoremediation methods with varying plant densities to improve water quality and tilapia survival. The study was conducted with four treatments: A75 (plant density 75% of the aquarium surface area), A50 (50%), A25 (25%), and A0 (no plants), using an aquarium size of 60 x 30 x 50 cm³. Each treatment received chicken manure at 1.8 grams per aquarium and 40 tilapia fish per aquarium. Observations were made over 15 days in March 2023, measuring physical and chemical water parameters including DO, pH, TDS, temperature, and ammonia, as well as calculating the survival rate of tilapia. Using a Completely Randomized Design (CRD), the study found that treatment A75 achieved the highest survival rate at 62.5%. This result indicates that higher plant density in the phytoremediation method is more effective in maintaining water quality and supporting tilapia survival.

Analisis Faktor-Faktor yang Mempengaruhi Rasio Pembayaran Dividen pada Perusahaan yang Terdaftar di Bursa Efek Indonesia Gayatri Kurnia Utami; Robin Robin
Jurnal Manajemen Maranatha Vol 15 No 1 (2015)
Publisher : Universitas Kristen Maranatha

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.28932/jmm.v15i1.25

This research aims to examine the factors that affect company’s dividend payout ratio in context of Indonesia. The object of this research are companies listed on Indonesia Stock Exchange (BEI) in the period from 2009 to 2013. The companiesused as a sample in this study is companies that regularly pay dividend for five years. This research used purposive sampling method, sample that meet the criteria are 20 firms or 100 observations data.The results of this study are firm size andprofitability is positive significant influence, cash flow is negative significant influence, and corporate tax, growth in sales, financial leverage, and market to book value is not significant.Keywords: Dividend Payout Ratio, Firm Size, Corporate Tax, Profitability,Market to Book Value, Growth Sales, Cash Flow, Financial Leverage

Title

Found 23 Documents
Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title Search

Found 23 Documents Search

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Abstract

Title

Found 23 Documents
Search