Biologi Edukasi: Jurnal Ilmiah Pendidikan Biologi
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Dinamika Populasi Bivalvia di Pesisir Kuala Tanjung, Kabupaten Batu Bara
Full text linkBivalvia merupakan salah satu kelas dalam Filum Moluska (Invertebrata) yang disebut juga kerang-kerangan, Bivalvia memiliki banyak spesies, beranekaragam spesies bivalvia hidup didaerah pesisir dengan populasi yang cukup banyak tersebar disetiap substrat habitat hidupnya.Tujuan penelitian mengetahui populasi bivalvia dengan mengetahui kepadatan, serta ukuran cangkang yang dapat sebagai indicator populasi bivalvia. Penelitian ini dilakukan pada dua lokasi yaitu Pantai Sujono dan Kawasan Pabrik pada bulan Januari 2022. Teknik pengambilan sampel menggunakan metode purposive sampling dengan pertimbangan tertentu dari karakteristik yang berbeda dilokasi penelitian. Hasil penelitian terdapat 4 spesies bivalvia yaitu Anadara gubernaculum, Perna viridis, Meretrix meretrix, dan Anadara Granosa. Dari spesies tersebut terdapat kepadatan bivalvia tertinggi spesies Perna viridis (1,81 ind/m2) dan terendah spesies Meretrix meretrix (1,19 ind/m2). Pada pengelompokan ukuran cangkang bivalvia yang paling tinggi pada ukuran besar ( 3), dan banyak juga ditemui pada ukuran (2,1-3,0cm). Populasi bivalvia berdasarkan pengelompokan ukuran cangkang bivalvia mengalami masa penurunan dan juga masa pertumbuha
Pengaruh Penggunaan Earphone selama Pembelajaran Daring Terhadap Resiko Kejadian Noise-Induced Hearing Loss
Full text linkSebelum penerapan pembelajaran daring pada masa pandemi covid-19, kebanyakan penggunaan earphone untuk kebutuhan mendengarkan musik dan menelepon. Penggunaan earphone menjadi meningkat sejak diberlakukannya pembelajaran daring, online meeting dan webinar. Tujuan penelitian ini adalah mengkaji lebih dalam terkait faktor yang mempengaruhi penggunaan earphone dalam pembelajaran daring terhadap risiko kejadian noise induced hearing loss. Penelitian ini menerapkan penelitian survei dalam skala kecil dengan pemilihan sampel secara sistematis. Desain klasifikasi sampel menggunakan metode decision tree. Metode pengumpulan data menggunakan internet interviews melalui instrumen kuesioner dalam bentuk google form. Analisis data berupa statistik deskriptif berbantuan aplikasi RapidMiner. Berdasarkan hasil analisis data, dapat disimpulkan bahwa selama pembelajaran daring adapun faktor yang paling mempengaruhi penggunaan earphone adalah status pekerjaan yaitu mahasiswa. Semakin lama adanya pembelajaran daring maka semakin sering mahasiswa menggunakan earphone. Sebanyak 51% responden menggunakan earphone selama pembelajaran daring namun hanya 27% yang mengetahui fungsi noise dan 11% yang mengetahui fitur akustik pada earphone
Kelayakan Lembar Kerja Peserta Didik (LKPD) berbasis Inkuiri Terbimbing pada Submateri Invertebrata Kelas X
Full text linkPendidikan dengan Kurikulum 2013 saat ini mengacu pada pembelajaran abad ke-21 yang mengembangkan kemampuan higher of thinking skill (HOTS) peserta didik seperti kemampuan berpikir kritis, argumentasi, keterampilan berpikir, pemecahan masalah, menciptakan, memperbarui, literasi. keberhasilan penerapan pembelajaran Kurikulum 2013 dapat didukung dengan penggunaan bahan ajar berupa LKPD. berdasarkan wawancara guru Biologi SMAN 1 Sunga Pinyuh, dalam pembelajaran bahan ajar yang guru gunakan adalah buku paket kemendikbud sedangkan peserta didik menggunakan buku penunjang Biologi dari penerbit yang di dalamnya juga terdapat LKPD yang digunakan untuk kegiatan diskusi. guru dibantu dengan media power point, menurut guru dapat membantu peserta didik memahami materi. namun, berdasarkan data hasil belajar peserta didik masih dalam kategori rendah dan yang terendah adalah submateri Invertebrata. berdasarkan wawancara dengan peserta didik, peserta didik merasa kesulitan memahami materi dengan buku yang digunakan berisi sajian materi yang banyak dengan gambar yang tidak berwarna sehingga tidak menarik minat baca peserta didik. berdasarkan permasalahan tersebut, perlu adanya pengembangan bahan ajar berupa LKPD dengan model pembelajaran yang diterapkan pada Kurikulum 2013
Studi Analisis Tumbuhan Obat Suku Manggarai di Nusa Tenggara Timur
Full text linkSuku Manggarai yang bermukim di kawasan pegunungan Kecamatan Ndoso merupakan salah satu suku yang masih mempertahankan adat dan tradisi dalam penggunaan sumber daya alam khususnya tumbuhan sebagai obat tradisional. Oleh karena itu perlu dilakukan kajian pustaka (literature study) dengan data yang digunakan berupa data sekunder mengenai preferensi enam tumbuhan obat khas digunakan suku Manggarai di NTT yaitu tumbuhan, Wengker Wilis, Ndingar, Ngelong, Nipon, dan Haju Lui dan berbagai penelitian relevan sebelumnya. Data tersebut dianalisis dan disimpulkan sehingga mendapatkan hasil studi yang komperhensif. Hasilnya menunjukkan bahwa tumbuhan obat khas Suku Manggarai di Nusa Tenggara Timur (NTT) terbukti memiliki kandungan-kandungan yang dapat menyembuhkan penyakit yang beragam dan tidak diketahui oleh suku tersebut. Tumbuhan Fraxinus griffithii, Cinnamomum burmanii, dan Drymaria cordata memiliki kandungan yang bermanfaat sesuai dengan khasiat yang dipercayai suku Manggarai, dan tumbuhan Crassocephalum crepidioides, Selaginella doederleinii, dan Elatostema elegans tidak sesuai antara kandungan didalamnya dengan khasiat yang dipercayai suku Manggarai
Uji Organoleptik dan Kandungan Nutrisi pada Mie Kuning dengan Campuran Labu Tanah (Cucurbita moschata) dan Ubi Rambat (Ipomoea batatas
Full text linkMakanan merupakan kebutuhan dasar manusia untuk keberlangsungan hidup dan sebagai sumber energi untuk menjalankan aktifitas fisik maupun biologis dalam kehidupan sehari-hari. Labu kuning dan ubi rambat diolah menjadi tepung, karena memiliki kandungan air yang rendah serta dapat digunakan dalam berbagai pembuatan produk makanan. Tujuan dari penelitian ini adalah untuk mengetahui uji organoleptik dan kandungan nutrisi pada mie kuning berbahan dasar labu tanah (Curcubita Moschata) dan berbahan dasar ubi rambat (Ipomea Batatas). Metode penelitian ini adalah metode eksperimen. Hasil uji organoleptik mie kuning dengan campuran labu tanah dari 150 pertanyaan bahwa sebanyak 40% mengatakan sangat suka. Untuk mie kuning dengan campuran ubi rambat sebanyak 46,6% mengatakan sangat suka. Hasil uji kadar nutrisi ditemukan kandungan lemak tertinggi terdapat pada campuran labu dan tepung (50%: 50%) yaitu sebanyak 2,02% dan terendah terdapat pada campuran tepung dan ubi rambat (60%: 40%) yaitu sebanyak 0,61%. Sedangkan kadar karbohidrat tertinggi ditemukan pada campuran ubi rambat dan tepung (50% : 50%) yaitu 32,16% dan terendah terdapat pada campuran tepung 60% dan 40% ubi rambat yaitu 22,95%
Effectiveness of Gargling Using Andaliman Fruit Extract (Zanthoxyllum acanthopodium) with Various Concentrations Against pH
Full text linkThe purpose of this study was to determine the effect of andaliman fruit extract (Zanthoxyllum acanthopodium) on salivary volume and pH. This research is an experimental study with a quantitative approach and randomized group design (RBD) design. The parameter in this research are volume and pH value of the saliva of research subjects. Data were analyzed used the Analysis of Variance test. Based on the results of the study note that the average value of salivary pH in P2 treatment (extract 10%) has the same salivary pH as the average value of salivary pH P0 + (branded mouthwash) with a pH value of 7.1 and close to the average value normal pH. From these results it was concluded that the Andaliman fruit extract solution can maintain normal salivary pH so as to maintain oral hygiene and health and be effectively used as a mouth rins
The Development of Waste Sorting Robot to Improve Environmental Care Attitudes at MTsN 1 Banda Aceh
Full text linkOne of the waste management efforts is to sort waste. Waste handling in Indonesia, especially in Aceh, is still conventional. Based on these facts, a new breakthrough is needed during the era of the industrial revolution 4.0 by making a waste sorting robot. The purpose of this study was to determine the process of developing a waste sorting robot and to determine the environmental care attitude at MTsN 1 Banda Aceh by developing a waste sorting robot. This research method is Research and Development (RD). The researcher referred to Sugiyono's development model through 10 sequential steps (procedural), namely: Potential and problems; 2) data collection; 3) Product design; 4) Design validation; 5) Revised design; 6) Product trials; 7) Product revision; 8) Trial use; 9) Product revision; 10) Mass production. Research and development carried out by researchers only from steps 1-9. In the tenth step (10) of mass production, researchers did not do it because of time and cost constraints. The research location was conducted at MTsN 1 Banda Aceh. The research was carried out from October to November 2020. The research instruments were interview guides, a waste sorting robot product feasibility assessment questionnaire, and an environmental care attitude questionnaire. The data analysis technique used descriptive statistics with percentages. The results of the validation of the feasibility design of the waste sorting robot by 2 machine design experts and 1 science teacher at MTsN 1 Banda Aceh, an environmental material expert, obtained a score of 17 with a value of 100% in the less feasible category. Furthermore, in the trial, the score was 29 with a value of 100% in the very feasible category. The conclusion of this study is that the waste sorting robot is very feasible to use. The development of a waste sorting robot can improve environmental awareness at MTsN 1 Banda Aceh
Effectiveness of Liquid Waste Treatment of RSUD Kefamenanu Through Filtration Process
Full text linkHospital liquid waste has the potential to pollute the environment and harm health if not processed properly because it contains high enough organic and inorganic compounds, pathogenic microorganisms, toxic chemicals and radioactive substances. Rumah Sakit Umum Daerah (RSUD) Kefamenanu is the only hospital owned by the Government of Kabupaten Timor Tengah Utara and located in the middle of community settlements and uses wastewater treatment plants (IPAL) in the treatment of hospital liquid waste since 2016. The results of liquid waste quality examination showed that there are several parameters that have increased after processing through IPAL so that researchers use filtration method in processing liquid waste of RSUD Kefamenanu. This study aims to find out the effectiveness of liquid waste treatment of RSUD Kefamenanu through filtration process using filter media in the form of coconut coir, sand, palm oil, activated charcoal and zeolite. This research is a pseudo experiment, namely to find out the percentage of decreased levels of liquid waste parameters through the filtration process. The results showed that the levels after processing had an average value of BOD 3.86 mg/L, TSS 14 mg/L and ammonia of 0.10 mg/L. The filtration process was able to lower BOD levels by 63.62%, TSS by 93.24% and ammonia by 86.57%. Based on these results, it can be concluded that the filtration process is able to lower levels of BOD, TSS and ammonia in liquid waste of RSUD Kefamenanu
The Potential of Ethanol Extract Kebar Grass (Biophytum petersianum Klotzsch) in Repairing Rat (Rattus norvegicus) Liver That Exposed to Cigarette Smoke
Full text linkKebar grass (Biophytum petersianum Klotzsch) is a plant that contains antioxidants, vitamins, and flavonoids which are thought to be able to improve rat liver due to exposure to cigarette smoke. The purpose of this study was to determine the potential of giving ethanol extract of Kebar grass (Biophytum petersianum Klotzsch) in repairing liver damage in rats exposed to cigarette smoke. This study used an experimental method using a completely randomized design (CRD) consisting of four treatments and each of which was repeated three times. The negative group mice were fed normally, the positive control group was the rats exposed to cigarette smoke for 28 days, the first dose the rats that had been exposed to cigarette smoke for 28 days were given ethanol extract of Kebar grass dose of 0.067 mg / head / day for 28 days and at a dose The two rats that had been exposed to cigarette smoke for 28 days were given ethanol extract of grass kebar dose of 0.135 mg / head / day for 28 days. Observation of rat liver was observed under a microscope using Hematoxylin Eosin (HE) staining and histological photomicrographs of the rat liver were analyzed descriptively by displaying histological images. The results showed that the ethanol extract of Kebar grass (Biophytum petersianum Klotzsch) was able to repair rat liver damage (Rattus norvegicus) including inflammatory cells, hydropic degeneration, fat degeneration, and necrosis due to exposure to cigarette smoke
Effectiveness of Corn Silk Extract As a Natural Insecticide on Aedes aeegypti Mortality with Liquid Electric Method
Full text linkCorn silk is a part of the corn plant that is still considered waste. Corn silk is dominated by flavonoids, tannins, saponins and essential oils, which are compounds that are toxic to insects, so they have the potential to act as natural insecticides. This study aims to determine the concentration and duration of exposure to corn silk extract which is effective against the mortality of Aedes aegypti mosquitoes by using the liquid electric method. The research approach used is quantitative. This type of research is experimental. The research design used was factorial completely randomized design (CRD) with 3 levels of exposure time factor (A) and 5 levels of concentration factor (B) to obtain 15 treatment combinations with 4 replications. The length of exposure during the study was 30 minutes (T1), 60 minutes (T2) and 90 minutes (T3). The concentration factors given were aquadest (P0) as a negative control, the concentration of corn silk extract was 500 g / L (P1), 1,000 g / L (P2), 1,500 g / L (P3) and d-allethrin 0.08 g / L brand HIT (P4) as positive control. The parameters observed were the Aedes aegypti mosquito mortality and the LC50 value. The data were analyzed using Analysis of Variance (ANOVA) then continued with the Honestly Significant Difference test (HSD) and probit regression analysis. The results showed that the highest mortality of Aedes aegypti mosquitoes was found in the combination of T3P3 treatment with exposure time of 90 minutes (T3) and a concentration of 1,500 g / L (P3) with a percentage of 87.5% mortality. The results of the ANOVA test and the LSD test showed that the interaction between the concentration factor (A) and the exposure time factor (B) was significantly different. The results of the probit regression analysis showed that the extract concentration value that caused 50% (LC50) of Aedes aegypti mosquito mortality was 1740 g / L for 30 minutes of exposure, 713.33 g / L for 60 minutes of exposure and 341.34 g / L for 90 minutes exposure. The conclusion of this study is that the combination of T3P3 corn silk extract treatment is effective as a natural insecticide against the mortality of Aedes aegypti mosquitoes using the liquid electric method