Judul: Suatu Studi Pendahuluan tentang Hubungan antara Behaviour Tuna dan Skipjack dengan Fishing Teknik dan Fishing Taktik
Abstrak: Tuna an skipjack mempunyai kebiasaan makan secara aktif pada pagi hari, berkurang keaktifannya sekitar tengah hari dan hampit tidak makan sama sekali sepanjang hari. Makanan utamanya adalah ikan, crustacea dan cephalods. Mereka membentuk shoaling untuk menghindarkan diri dari predator, mencari makan, memijah dan bermigrasi. Pola migrasi tuna dan skipjack ada dua macam, yaitu "migrasi antar habitat" dan "migrasi dalam habitat". Yang pertama disebabkan karena perubahan tingkat ekologinya dan ynag kedua disebabkan karena perubahan yang terjadi dalam habitatnya.
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Judul: Suatu Studi Tentang Penangkapan Tuna oleh PT perikanan Samodra Besar, Benoa Bali
Abstrak: Sampai saat i n i usaha penangkapan tuna d i perairan i-n donesia masih memberikan kemungkinan yang baik untuk dikembangkan. Dari potensi tuna dan skipjack di perairan Indonesia yang diperkirakan sekitar 207 000 ton, namun baru t+ % yyan dikelola. Satu unit penangkapan rawai tuna terdiri dari kapal, alat penangkapan dan tenaga kerja. Kapal yang digunakan untuk operasi adalah kapal besi berukuran rata-rata 111 GT, 370 FIP dan crew sebanyak 23 orang.
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Judul: Efforts to Control and Prevent Pathogenic Infection of Multi-Drug Resistant Organism (MDRO) of Methicillin-Resistant Staphylococcus aureus (MRSA) Clone Using Alcohol-Base Hand Rub.
Abstrak: The pandemic that is occurring caused both by COVID-19 (currently occurring) as well as the clone of the methicillin-resistant staphylococcus aureus (MRSA) in the previous period has really threatened human life. This condition requires materials that can break the chain of transmission from human to human and from the environment to human. An alcohol-based antiseptic (hand rub/hand sanitizer) often contains ethanol, isopropanol or n-propanol, or a combination of two of these types. Alcohol has an excellent germicidal activity in vitro against gram-positive and gram-negative vegetative bacteria (including multidrug-resistant pathogens such as MRSA and VRE) as well as viruses. Hand rub/hand sanitizer products are declared good if they have formulation stability, no irritation effect when they are used and are able to kill pathogens more than 90%. This study aimed to evaluate the quality of alcohol-based hand rub with WHO-based-standard formulation based on the stability of the formulation, the risk of irritation and the ability to kill bacteria. Hand rub/hand sanitizer was made by modifying the levels of the WHO formula with a hygiene procedure for 500 ml/bottle with the composition: Ethanol 96%; H2O2 3%; Glycerol 98%; and Aqua Sterile ad 500ml. Assessment on the presence of rancidity, clarity, discoloration, final alcohol content and skin irritation risk was done to know the quality of product formulation. A bacterial Methicillin-resistant staphylococcus aureus (MRSA) was used to assess the percentage of bacterial killing power. The selected bacteria were bacteria commonly found in the hospital environment. The results of formulation stability from four variants of level modification showed that MD.4 has good stability compared to other formulation modifications. The results of the percentage kill test against MRSA showed that the percentage kill is 99.90% at 1st, 2nd, and 5th minute. The selected manufacturer's product also showed the same percentage kill value at 1st, 2nd, and 5th minute. The results of percentage kill test showed that the effective value for each contact time is ≥ 90%. The SEM observations showed that MD.4 hand rub effect in the form of MRSA cell lysis. The LC50 test, it is known that MD.4 hand rub value is 620 ppm while softaman (control) is 114 ppm. In terms of irritation risk, twenty-three selected subjects were generally well tolerated in use.
Keyword: hand rub, hand sanitizer, ahmad Subhan, percentage kill bacteria, MRSA, WHO