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UTILIZATION Mangifera indica SKIN AND SALT AS ALTERNATIVE ENERGY Ivan Maulana Akbar; Muna Mumtazah; Na’illah Ega Sivana; Adisty Virakawugi Darniwa; Ateng Supriyatna
Student Scientific Creativity Journal Vol. 1 No. 4 (2023): Juli : Student Scientific Creativity Journal
Publisher : Pusat Riset dan Inovasi Nasional

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.55606/sscj-amik.v1i4.1651

Abstract

Efforts to reduce the use of polluting chemicals environment needs innovation to overcome these problems. One of them is by replacing the chemicals contained in the battery by utilizing mango skin waste became bio-battery. Even mango skin waste in the community is not properly utilized so that mango skin becomes waste that has no value. The purpose of this research is to utilize mango skin as a bio-battery material not only to produce current and voltage sources but it is also expected to be able to reduce the negative effects of disposing of community mango skin waste residue into the environment and reduce dependence on chemicals as battery electrolyte paste which has been used so far. The test parameters carried out were the electricity of the bio-baterry using mango skin and salt samples. This research used 3 weight ratios between mango skin solution and salt solution, namely 15:5 gr, 20 gr:5 gr, and 25:5 gr. The main stages of this research consisted of 3 stages, namely preparation, pH testing, characterization of electrical properties, and electrical analysis of mango skin. The results of the research that has been done, it can be concluded that the smallest measurements of pH, electric voltage, and electric current are produced at a volume of 30 ml (15 gr) of 3.55, 0.53 V, and 1.8 mA. While the highest was produced at a volume of 44 ml of 3.53, 1.53 V, and 1.9 mA.
Literatur Review: Kajian Evolusi Paus Balin Secara Filogenetik dan Molekuler Na’illah Ega Sivana; Rahajeng Galuh Tribuana; Rifqi Ilham; Muhimatul Umami
Jurnal Ilmiah Dan Karya Mahasiswa Vol. 3 No. 1 (2025): JURNAL ILMIAH DAN KARYA MAHASISWA (JIKMA)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jikma.v3i1.2863

Abstract

The evolution of Mysticeti (baleen whales) shows a unique transition from teeth to baleen, a specialized keratin structure that allows mass filtering methods to utilize zooplankton as a primary food source. This process includes significant anatomical, morphological, and molecular changes in their evolutionary history. This study examines paleontological, ontogenetic, and molecular evidence to understand the evolutionary mechanisms of tooth loss and the emergence of baleen. Genetic analysis shows inactivating mutations in enamel genes such as MMP20, ACP4, and KLK4 that promote the loss of enamel and teeth in Mysticeti. Paleontological findings indicate proto-baleen in Aetiocetidae as an important transitional stage to modern baleen structures. This study highlights the evolution of unique adaptations in Mysticeti that enabled their ecological success as the world's largest filter-feeding predators.
Analisis Perbandingan Gametogenesis pada Hewan Vertebrata dan Invertebrata Nafasya Rahmandini; Na’illah Ega Sivana
Jurnal Ilmiah Dan Karya Mahasiswa Vol. 3 No. 1 (2025): JURNAL ILMIAH DAN KARYA MAHASISWA (JIKMA)
Publisher : Institut Teknologi dan Bisnis (ITB) Semarang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.54066/jikma.v3i1.2864

Abstract

In mammals, the reproductive process involves fertilization between male and female gametes that produce embryos. Gametogenesis, which includes spermatogenesis and oogenesis, is the stage of formation and maturation of gamete cells through mitosis and meiosis division. The purpose of this study is to understand the differences and similarities in the process of gametogenesis in vertebrate and invertebrate animal groups. This study uses a literature study method in obtaining its data. Although there are variations in structure and mechanism, the process of gametogenesis in vertebrates and invertebrates has similar basic principles. Environmental factors such as temperature also play an important role in influencing spermatogenic activity and reproductive behavior in both groups of animals. The similarities in the basic process indicate that gametogenesis is an evolutionarily conservative mechanism, while specific variations reflect adaptation to the reproductive needs of each species.
Uji Viabilitas dan Pertumbuhan Kecambah Kacang Hijau (Vigna Radiata) Selama 11 Hari Na’illah Ega Sivana; Nathania Rahadatul ‘Aisy; Nurul Mawaddah; Rahajeng Galuh Tribuana; Rifqi Ilham; Ita Fitriyyah
Tumbuhan : Publikasi Ilmu Sosiologi Pertanian Dan Ilmu Kehutanan Vol. 2 No. 1 (2025): Januari : Tumbuhan : Publikasi Ilmu Sosiologi Pertanian Dan Ilmu Kehutanan
Publisher : Asosiasi Riset Ilmu Tanaman Dan Hewan Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.62951/tumbuhan.v2i1.196

Abstract

This study aims to test the viability and growth of mung bean (Vigna radiata) sprouts for 11 days. Mung beans were chosen as the object of research because of the ease of the germination process and high nutritional value. The methods used include preparing germination media with moistened opaque paper, as well as observing the parameters of normal, abnormal, and dead seeds. The results showed that in the first repetition, the number of normal sprouts reached 17 seeds with a germination power of 68%, while in the second repetition there were only 11 normal seeds. This study indicates that environmental conditions and proper treatment greatly affect seed viability. Thus, it is important to maintain optimal conditions to increase germination and plant growth results.