Bakteri Tanah Sampah Pendegradasi Plastik dalam Kolom Winogradsky

Penggunaan plastik berupa kantong kresek hasil daur ulang dengan berbagai warna sangat diminati oleh masyarakat. Sifat plastik yang tidak mudah terdegradasi di alam mengakibatkan masalah lingkungan. Penelitian ini dilakukan untuk mengisolasi dan mengkarakterisasi bakteri tanah sampah yang mampu mendegradasi plastik secara biokimia. Parameter biodegradasi plastik yang diukur adalah prosentase kehilangan berat kering, pengukuran densitas sel biofilm, densitas sel kolom air dan pH tiap bulan selama 4 bulan masa inkubasi. Dari penelitian didapatkan persentase kehilangan berat kerig plastk hitam lebih tinggi daripada plastik putih bening. Hasil yang diperoleh menunjukkan bahwa isolat bakteri tanah sampah pendegradasi plastik yaitu Gram positif basil (PPs 2, PPs 7, PPs 9, dan PPs 11) dan Gram negatif basil (PPs 1, PPs 4, PPs 5, PPs 6, PPs 8, PPs 10, PPs 12 dan PPs 13 )dan hanya PPs 3 termasuk Gram negatif kokus

Pemikiran Ekonomi Syariah Menurut Muhammad Abdul Mannan dan Muhammad Baqir Al-Sadr

This article discusses Islamic economic thinking according to Muhammad Abdul Mannan and Muhammad Baqir as-Sadr. The purpose of writing this article is to find out the similarities and differences in the economic thought of Muhammad Abdul Mannan and Muhammad Baqir as-Sadr. This research is library research and is qualitative. The data were obtained through books, journal articles, and the internet, especially those discussing Islamic economics and the works of Muhammad Abdul Mannan and Muhammad Baqir as-Sadr. The data collected were analyzed comparatively. The study results conclude that Mannan and as-Sadr have the same thoughts in terms of income distribution to ensure the welfare of all elements of society in a country. The economic problem does not lie in production or the scarcity of resources, but rather due to unequal and unfair distribution due to the financial system that allows the exploitation of the strong against the weak. According to Abdul Mannan, the difference between Baqir and Mannan's thoughts is that production can combine the traditional economy and the market. At the same time, Baqir As Sadr only supports government planning and does not consider market forces. M. A. Mannan allowed private ownership, while Baqir Ash-Sadr limited private ownership to use rights only

Pengenalan Literasi Keuangan Bagi Siswa Sekolah Dasar dalam Merencanakan Masa Depan

Through financial education, children are empowered to make wise decisions about money, save, and even understand the importance of sharing in a financial context. For young people to leave school without the basic skills to manage their personal financial affairs, this puts them at high risk of being unable to plan their financial future responsibly. This education can be carried out by holding outreach activities. This activity is carried out in two stages, namely preparation stages by identifying objectives, analyzing target audiences, choosing the right communication method, designing the right material so that it is easy to understand, determining the right location and time. The implementation stage is carried out by providing understanding and building discourse for students to increase their understanding of good financial management in order to achieve a prosperous future. The results of this activity make sixth grade students at SD Negeri Awang-Awang Mojosari more financially literate, they can develop the skills and knowledge to navigate the ins and outs of the basic financial system, make the right decisions regarding saving/investing. This activity succeeded in creating an environment that supports positive learning and provides a strong initial foundation for understanding financial literacy among Awang-Awang Mojosari Elementary School students

PENGARUH PROFITABILITAS, KEPUTUSAN INVESTASI DAN KEPUTUSAN PENDANAAN TERHADAP NILAI PERUSAHAAN ( Studi Empiris Perusahaan Industri Barang Konsumsi Tahun 2016-2018 )

Penelitian ini dilakukan dengan tujuan untuk mengetahui pengaruh profitabilitas, keputusan investasi, dan keputusan pendanaan terhadap nilai perusahaan pada perusahaan sektor Industri Barang Konsumsi yang terdaftar di BEI tahun 2016-2018. Penelitian ini diuji menggunakan analisis regresi linier berganda dengan menggunakan data sekunder yang dapat diakses melalui website www.idx.co.id. Dari populasi sebanyak 43 perusahaan industri barang konsumsi dengan menggunakan teknik purposive sampling diperoleh 24 perusahaan sebagai sampel dengan periode penelitian selama 3 tahun. Hasil penelitian ini menunjukkan bahwa profitabilitas dan keputusan investasi berpengaruh signifikan terhadap nilai perusahaan dengan tingkat signifikan 0,000 < 0,05 dan nilai t hitung > nilai t tabel, maka hipotesis pertama dan kedua diterima. Keputusan pendanaan berpengaruh signifikan terhadap nilai perusahaan dengan tingkat signifikan 0,007 < 0,05 dan nilai t hitung > nilai t tabel, maka hipotesis ketiga diterima. Hasil uji simultan menunjukkan bahwa ketiga variabel independen berpengaruh secara simultan terhadap nilai perusahaan. Hal ini ditunjukkan oleh perhitungan F hitung > F tabel adalah 301,646 > 2,73 dan nilai signifikansi adalah 0,000 < 0,05. Nilai Koefisien Determinasi (R 2 ) sebesar 94,2%. Hal ini menunjukkan bahwa ketiga variabel independen mempengaruhi variabel dependen sebesar 94,2%. sedangkan sisanya sebesar 5,8% dijelaskan oleh faktor lain selain faktor yang diajukan dalam penelitian ini

Bakteri Tanah Sampah Pendegradasi Plastik Dalam Kolom Winogradsky

Seiring perkembangan ilmu pengetahuan dan teknologi, plastik merupakan salah satu polimer sintetik yang mengalami peningkatan dalam penggunaannya. Penggunaan plastik berupa kantong kresek hasil daur ulang dengan berbagai warna sangat diminati oleh masyarakat. Sifat plastik yang tidak mudah terdegradasi di alam mengakibatkan masalah lingkungan. Penelitian ini dilakukan untuk mengisolasi dan mengkarakterisasi bakteri tanah sampah yang mampu mendegradasi plastik secara biokimia. Uji Biodegradasi plastik ditinjau dari prosentase kehilangan berat kering, pengukuran densitas sel biofilm, densitas sel kolom air dan pH tiap bulan selama 4 bulan masa inkubasi. Hasil penelitian didapatkan inokulum mikroorganisme yang ada di tanah sampah mampu mendegradasi plastik yang ditunjukkan dengan prosentase kehilangan berat kering plastik putih bening rata-rata per bulan sebesar 1% dan hitam sebesar 1,87%. Berdasarkan kunci dikotomi Bergey’s Determinative of Bacteriology isolat tersebut cenderung masuk ke dalam Genus Bacillus (PPs 9 dan PPs 11), Corynebacterium (PPs 7), Lactobacillus (PPs 2), Vibrio (PPs 5, PPs 8 dan PPs 10), Aeromonas (PPs 1, PPs 4, PPs 6, dan PPs 12), Yersinia (PPs 13) dan Neisseria (PPs 3) ============================================================================================== As the development of science and technology, plastic is one of the synthetic polymer that have increased in use among the community. The use of plastics in the form of recycled plastic bags with various color are in great demand by the public. Plastic properties that are not easily degraded in nature resulting in environmental problems. This research was conducted to isolate and characterize waste soil bacteria capable of degrading plastic. Biodegradation test of plastic in terms of percentage loss of dry weight, measurement of biofilm cell density, measurement of water column cell density and pH every month for 4 month of incubation. The results showed that the inoculum in the soil microorganisms capable of degrading plastic bins with a dry weight percentage loss of translucent white plastic per month on average by 1% and amounted to 1.87% black. Based on the key dichotomy Bergey's Determinative of Bacteriology isolates tend to enter into the genus Bacillus (PPS 9 and PPS 11), Corynebacterium (PPS 7), Lactobacillus (PPs 2), Vibrio (PPs 5, PPs 8 and PPs 10), Aeromonas (PPs 1, 4 PPs, PPs 6, and PPs 12), Yersinia (PPS 13) and Neisseria (PPS 3)