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All Journal Biosfer: Jurnal Tadris Biologi JURNAL ILMIAH MANAJEMEN & BISNIS PENA SAINS JENIUS (Jurnal Ilmiah Manajemen Sumber Daya Manusia) Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) International Journal of Business Economics (IJBE) Jurnal Ilmiah Biologi UMA (JIBIOMA) Jurnal Akuntansi, Manajemen dan Ilmu Ekonomi (JASMIEN) Jurnal Pengabdian Kepada Masyarakat (JPKM) Tabikpun Jurnal Abdi Masyarakat Indonesia Journal of International Conference Proceedings Jurnal Pengabdian Pada Masyarakat Filogeni: Jurnal Mahasiswa Biologi BULLET : Jurnal Multidisiplin Ilmu AMMA : Jurnal Pengabdian Masyarakat
Farisi, Salman
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Larvicide Effects of Serratia marcescens strain MBC1 Extract on Instar III Larvae of Aedes aegyti Lestari, Mutia Dinda; Nukmal, Nismah; Setyaningrum, Endah; Farisi, Salman; Arifiyanto, Achmad
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 9 No. 1 (2022)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v9i1.219

Abstract

Bakteri merupakan kandidat yang berpotensi sebagai larvasida Aedes aegypti. Penelitian ini bertujuan untuk mengetahui pengaruh ekstrak Serratia marcecsens strain MBC1 terhadap kematian larva instar III Aedes aegypti. Penelitian ini merupakan penelitian eksperimental dengan dua macam bentuk pengujian, yaitu uji larvasida untuk menentukan mortalitas dan uji lanjut untuk melihat perkembangan larva setelah perlakuan larvasida. Larva instar III diberi perlakuan dengan konsentrasi 125, 250, 500, dan 1.000 ppm. Uji larvasida diamati selama 24-72 jam. Uji lanjut larva instar III  diberi perlakuan dengan konsentrasi 500 dan 1.000 ppm serta diamati sampai semua larva mati. Kontrol positif menggunakan Abate® 1% dan kontrol negatif menggunakan air sumur. Hasil analisis probit didapatkan bahwa nilai LC50 dan LC90 ekstrak S. marcescens adalah 66.426,02 dan 749.001,41ppm. Larva instar III mati pada 18 hari setelah perlakuan ekstrak S. marcescens strain MBC1. Hasil dari penelitian ini menunjukkan bahwa larvasida ekstrak S. marcescens mempengaruhi lamanya siklus hidup dan mati sebelum mencapai stadium dewasa.     Bacteria have potencial as larvicide of Aedes aegypti. The purpose of this study is to determine the effect of Serratia marcescens strain MBC1 against larval third instars of Aedes aegypti. This research was an experimental study with two kinds of testing. The larvicide test to determine the mortality of the larval and the continuous test to observe the development of the larval after treatment with the larvacide. The third instars of mosquito larval were given bacterial extract in four concentrations (125, 250, 500, and 1000 ppm), and observed mortality during 72 hours. The continuous larvicide test was observed at two concentrations (500 and 1,000 ppm). The observation is completed when all of the larvae died. The positive control used Abate® 1% and the negative control used natural water. The treatment was repeated 4 times. The results show that LC50 and LC90 of S. marcescens extract are 66,426.02 dan 749,001.41 ppm.  All of the larvae in the continuous test die after 18 days have been givenan extract of S. marcescens strain MBC1. The experiment shows that the larvicide of extract of S. marcescens influences the length of the life cycle and larvae of Ae. aegypti die before reaching the adult.    
Effect of Pyriproxyfen, a Malaria Vector Larvicide, on the Growth and Mortality of Vannamei Shrimp Putri, Sriana; Setyaningrum, Endah; Farisi, Salman
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 10 No. 1 (2023)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v10i1.258

Abstract

Anopheles mosquito shared a breeding site with the vannamei shrimp (Litopenaeus vannamei). Anopheles mosquito larvae commonly live in both stagnant fresh and brackish water. The potential breeding habitat of Anopheles mosquito larvae may be rice fields, pools or ponds, swamps, ditches, and slow-current streams. One of the effective strategies to control malaria is to apply chemical insecticides. Pyriproxifen is a larvicide that contains juvenile hormone-like compounds. Juvenile hormone-like compounds can affect mosquito morphogenesis, characterized by the failure of the larvae to develop into pupae. With a completely randomized design, the shrimp fry was divided into 4 groups,  6 repetitions, 20 individuals each. Shrimp fry in each experimental unit was placed and maintained in plastic jars containing 2.5 L of brackish water. The results showed that the insect growth regulator (IGR) with the active ingredient pyriproxyfen at various concentrations had no significant effect on the growth, mortality, and survival of vannamei shrimp fry.  It can be concluded therefore that pyriproxifen larvicide was safe to be used for controlling malaria mosquito vectors in hatcheries and breeding ponds of vannamei shrimp.
Water Quality Analysis Based on Diversity and Abundance of Plankton in the Way Besai River, North Lampung: Analisis Kualitas Air Berdasarkan Keanekaragaman dan Kelimpahan Plankton di Sungai Way Besai Lampung Utara Nazma, Anya Khalisza Putri; Tugiyono, Tugiyono; Farisi, Salman; Susanto, Gregorius Nugroho
Jurnal Ilmiah Biologi Eksperimen dan Keanekaragaman Hayati (J-BEKH) Vol. 12 No. 1 (2025)
Publisher : Department of Biology Faculty of Mathematics and Natural Sciences Universitas Lampung in collaboration with The Indonesian Association of Biology (PBI) Lampung Branch.

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.23960/jbekh.v12i1.407

Abstract

Plankton is one of the aquatic biota that can act as a bioindicator of Water because it is susceptible to changes in the quality of the Water where it lives. The Way Besai River is in Dwikora Village, Bukit Kemuning District, North Lampung Regency. This study aimed to determine the water quality of the Way Besai River based on the diversity and abundance of plankton as a bioindicator of Water and to determine the relationship between the plankton community structure and water quality parameters. This study was conducted in November-December 2024. Sampling was performed using a survey method with 6 (six) spots, which were then identified and calculated using the Sedgewick-Rafter method. Based on the analysis of plankton abundance and diversity, it is known that the Way Besai River is moderately polluted, and there is a significant relationship between the plankton community structure and water quality parameters.
Efek Kuning Telur Terhadap Motilitas Sperma Ikan Lukas (Puntius bramoides Val) Pascakriopreservasi Pertiwi, Primasari; Abinawanto; Farisi, Salman
BULLET : Jurnal Multidisiplin Ilmu Vol. 3 No. 1 (2024): BULLET : Jurnal Multidisiplin Ilmu
Publisher : CV. Multi Kreasi Media

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Abstract

The research aims to determine the effect of several concentrations of egg yolk as an effective natural cryoprotectant for cryopreservation and to analyze the quality of lukas fish spermatozoa (Puntius bramoides Val) 48 hours after cryopreservation. This research used a 9 treatments and 4 replications. The concentration of egg yolk used as a cryoprotectant was 0% (negative control), 5%, 7%, 9%, 11%, 13%, 15%, 17%, and 1% Carboxymethyl Cellulose (CMC) was used as a positive control. The results showed that the use of several concentrations of egg yolk as a natural extracellular cryoprotectant was able to significantly influence (P<0.005) the quality of Lukas fish spermatozoa 48 hours after cryopreservation. The use of egg yolk concentration of 9% is the optimum concentration in maintaining the motility of Lukas fish spermatozoa with the average percentage obtained each being 80.45 ± 0.93%.
Pelatihan Pengendalian Penyakit Busuk Batang Vanili (BBV) Di Desa Srimenganten, Kecamatan Pulau Panggung, Kabupaten Tanggamus, Provinsi Lampung Nurcahyani, Endang; Insan Qudus, Hardoko; Sumardi; Maryani, Rina; Yulianty; Irawan, Bambang; Farisi, Salman
AMMA : Jurnal Pengabdian Masyarakat Vol. 4 No. 3 : April (2025): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

Srimenganten Village, located in Pulau Panggung Sub-district, Tanggamus Regency, Lampung Province, is an agrarian area with vanilla as one of its main commodities. However, vanilla productivity in this village has declined due to the outbreak of Vanilla Stem Rot Disease (BBV), caused by the fungus Fusarium oxysporum f.sp. vanillae. To address this issue, a community service program was conducted through training on BBV disease management for vanilla farmers in Srimenganten Village. The training covered topics such as disease symptom identification, prevention methods, and environmentally friendly control techniques. The effectiveness of the training was evaluated by comparing participants' pre-test and post-test results. The evaluation showed an average increase in participants' knowledge scores by 33.3 points, with a percentage increase of 61.3%. This indicates that the training effectively enhanced farmers' understanding of BBV disease management. It is expected that this increased knowledge will be applied in vanilla cultivation practices, thereby improving productivity and the quality of harvests.
Leader-Member Exchange and Employee Performance: The Mediating Role of Work Engagement and Job Satisfaction Siswadi, Yudi; Farisi, Salman; Arif, Muhammad; Astuti, Rini
International Journal of Business Economics (IJBE) Vol 6, No 2 (2025): MARCH - AUGUST 2025
Publisher : Fakultas Ekonomi dan Bisnis, Universitas Muhammadiyah Sumatera Utara

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.30596/ijbe.v6i2.23542

Abstract

Purpose — This study investigates and evaluates the direct or indirect effects of leader-member exchange on work engagement and job satisfaction on employee performance.Methodology — This study adopts a causal approach, examining causal relationships between variables. It involved 200 employees from a Pharmaceutical Company in Medan, North Sumatra, Indonesia, with a sample size of 197 employees. Questionnaires were employed in this study's data collection process. Smartpls (Partial Least Squares) 3.0 software was utilised for structural equation modelling in statistical analysis.Findings — The findings of this study reveal that direct leader-member exchange, work engagement, and job satisfaction significantly affect employee performance. Leader-member exchange significantly affects performance through work engagement and employee job satisfaction at the Pharmaceutical Company in Medan, North Sumatra, Indonesia.Originality/Novelty — This study's novelty highlights the mediating role of work engagement and job satisfaction in the relationship between Leader-Member Exchange (LMX) and employee Performance improvement, providing new insights into such psychological mechanisms.Implications — This research provides information for the Pharmaceutical Company in Medan, North Sumatra, Indonesia, and related parties to improve employee performance by increasing job satisfaction and work engagement and improving existing leadership to provide employee comfort.
Uji Daya Antibakteri Isolat Bakteri Asam Laktat dari Kefir terhadap Bacillus sp. dan Escherichia Coli Ningsih, Agung Setia; Ekowati, Christina Nugroho; Sumard, Sumard; Farisi, Salman
Biosfer: Jurnal Tadris Biologi Vol 9 No 2 (2018): Biosfer: Jurnal Tadris Biologi
Publisher : UNIVERSITAS ISLAM NEGERI RADEN INTAN LAMPUNG

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24042/biosfer.v9i2.2608

Abstract

Penelitian ini bertujuan untuk mengetahui daya antibakteri  yang dihasilkan oleh isolat bakteri asam laktat dari kefir susu sapi dan susu kedelai terhadap Escherichia coli. Penelitian ini dilakukan dalam empat tahapan yaitu isolasi dan identifikasi BAL kefir, produksi zat antibakteri dari isolat, menguji daya hambat isolat antibakteri BAL terhadap Escherichia coli. Hasil penelitian menunjukan Keenam Isolat bakteri asam laktat dari kefir susu kedelai dan kefir susu sapi mampu menghambat pertumbuhan Escherichia coli dalam kondisi asam dan netral. Dalam kondisi asam luas zona hambat KE1-KE3 berturut-turut adalah 3,51; 2,93; 2,66 dan SA1-SA3 adalah 1,83; 2,46; 2,46. Dalam kondisi netral zona hambat KE1-KE3 berturut-turut adalah 1,59; 2,33; 1,99 dan SA1-SA2 adalah 1,49; 2,49; 2,39.
Analisis Indeks Kualitas Air di Analisis Indeks Kualitas Air di Sungai Bako Bandar Lampung Hutauruk, Elisa Marcelina; Tugiyono, Tugiyono; Farisi, Salman
Filogeni: Jurnal Mahasiswa Biologi Vol 5 No 2 (2025): Mei-Agustus
Publisher : Program Studi Biologi Fakultas Sains dan Teknologi Universitas Islam Negeri Alauddin Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24252/filogeni.v5i2.56653

Abstract

Sungai merupakan jalur pengaliran air alami atau buatan dari hulu hingga hilir. Kualitas air sungai dapat mengalami perubahan dipengaruhi oleh aktivitas manusia. Sungai Bako merupakan sungai yang melintasi pemukiman padat penduduk. Meningkatnya aktivitas manusia, perubahan pola pemanfaatan lahan, dan semakin beragamnya pola hidup masyarakat yang menghasilkan limbah domestik menjadikan beban pencemar di sungai semakin meningkat. Tujuan dari penelitian ini adalah untuk mengetahui Indeks Kualitas Air (IKA) berdasarkan parameter fisika, kimia, dan biologi. Titik pengambilan sampel berada di Sungai Bako pada hulu, tengah, dan hilir sungai. Sampel air dianalisis dengan delapan parameter, yaitu pH, DO, BOD, COD, TSS, nitrat, T-fosfat, dan Escherichia coli. Berdasarkan hasil perhitungan Indeks Pencemaran (IP), Sungai Bako pada 3 stasiun penelitian termasuk dalam kategori tercemar ringan dengan nilai IP pada masing-masing stasiun yaitu 2,075 (stasiun 1), 2,075 (stasiun 2), dan 2,376 (stasiun 3). Hasil analisis nilai IKA pada Sungai Bako yaitu tercemar sedang dengan nilai sebesar 50.
Improving Employee Productivity: Compensation, Work Discipline, and Motivation Hayati, Nur; Farisi, Salman
Jurnal Akuntansi, Manajemen dan Ilmu Ekonomi (Jasmien) Vol. 5 No. 03 (2025): Vol. 5 No. 03 (2025): Jurnal Akuntansi, Manajemen dan Ilmu Ekonomi (Jasmien)
Publisher : Cattleya Darmaya Fortuna

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54209/jasmien.v5i03.1436

Abstract

The purpose of this study is to determine the effect of compensation on employee productivity at the Medan City MSME Cooperative Office, the effect of work discipline on employee productivity at the Medan City MSME Cooperative Office and the effect of motivation on employee productivity at the Medan City MSME Cooperative Office as well as to determine the influence of compensation, work discipline and motivation on employee productivity at the Medan City MSME Cooperative Office. The method in this study using a quantitative approach. The population in this study were all employees of the Medan City UMKM Cooperative Service, totaling 40 people. The sample in this study was sampled using the saturated sample method where all members of the population were sampled as many as 40 people. Data collection techniques in this study used questionnaires or questionnaires distributed to employees of the Medan City UMKM Cooperative Service. The data technique in this study used the calssical assumption test, multiple linear regression, hypothesis testing (t test and F test), and the coefficient of determination. Data processing in this study uses the application Statistical Product and Service Solutions (SPSS) 22.0 for windows. The results of this study show that in terms of compensation, work discipline and motivation, each have a significant effect on the productivity of employees of the Medan City MSME Cooperative Office and simultaneously compensation, work discipline and motivation have an effect on employee productivity at the Medan City MSME Cooperative Office. Further research can add other variables such as leadership, organizational culture, or work-life balance to gain a broader understanding of the factors that affect employee productivity. .
Pelatihan Pembuatan Pupuk Organik Cair Dari Kulit Pisang Ambon Pada Ibu-Ibu Dasawisma Dahlia Kelurahan Labuhan Ratu, Bandar Lampung Yulianty; Nurcahyani, Endang; Irawan, Bambang; Farisi, Salman; Umar, Suratman; Azizah, Enur
AMMA : Jurnal Pengabdian Masyarakat Vol. 4 No. 7 : Agustus (2025): AMMA : Jurnal Pengabdian Masyarakat
Publisher : CV. Multi Kreasi Media

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Abstract

One type of household waste that is commonly discarded and rarely reused is banana peel waste. If left unmanaged, it can cause environmental problems in both rural and urban areas. An alternative solution is to utilize banana peel waste, such as Ambon banana peels, as a source of local microorganisms for producing liquid organic fertilizer (POC). POC is relatively easy to produce and environmentally friendly. This community service program aimed to empower residents of Dasawisma Dahlia RT 004, Labuhan Ratu, Bandar Lampung, through training on the production of liquid fertilizer concentrate (LFC) from Ambon banana peels. The results showed an increase in participants’ knowledge and skills, as reflected in the average pre-test score of 60.51, which increased to 86.67 after the post-test. This represents an improvement of 26.15 points, or a 43.22% increase. The sustainability of this initiative lies in the potential for large-scale POC production, which can be further utilized for environmental and economic benefits.
Co-Authors Abinawanto Arifiyanto, Achmad Azizah, Enur Bambang Irawan /E21207042 Christina Nugroho Ekowati, Christina Nugroho Dhillon, Aishwar Shaqilla Kaur Endah Setyaningrum, Endah Endang Nurcahyani Hendri Busman Hutauruk, Elisa Marcelina Ikhsan Ikhsan Insan Qudus, Hardoko Jasman Saripuddin Hasibuan Jufrizen Lestari, Mutia Dinda Linirin Widiastuti, Endang Maryani, Rina Muhammad Andi Prayogi Muhammad Arif Nasution, Azly Anggraini Nazma, Anya Khalisza Putri Ningsih, Agung Setia Nukmal, Nismah Nur Hayati Pramesti, Nouriza Agfa Primasari Pertiwi Putri, Jean Delliana Putri, Sriana Rini Astuti Rochmah Agustrina RR. Ella Evrita Hestiandari Sari, Galuh Retno Sembiring, Rinawati Septi Prihantini, Baiq Nur Iman Sumard, Sumard Sumardi Sumardi . suratman Suratman Suratman Suratman Umar Susanto, Gregorius Nugroho Syah, Amirul Tengku Riza Zarzani N Tugiyono Tugiyono YUDI SISWADI Yulianty Yulianty Yulianty