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All Journal Jurnal Biologi Tropis Renjana Pendidikan Dasar Jurnal Penelitian dan Kajian Ilmiah Kesehatan Politeknik Medica Farma Husada Mataram
Sri Wahyuni
Universitas Mataram
Agriculture, Biological Sciences & Forestry Biochemistry, Genetics & Molecular Biology Education Immunology & microbiology Medicine & Pharmacology Nursing Public Health Social Sciences Other

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PENGARUH MEDIA GAMBAR TERHADAP KEMAMPUAN MENULIS KARANGAN DESKRIPSI SISWA KELAS IV SD Sri Wahyuni; Heri Hadi Saputra; Husniati Husniati
Renjana Pendidikan Dasar Vol 1 No 4 (2021): Edisi November 2021
Publisher : Program Studi Pendidikan Guru Sekolah Dasar FKIP Universitas Mataram

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Abstract

Penelitian ini bertujuan untuk mengetahui pengaruh media gambar terhadap kemampuan menulis karangan deskripsi siswa kelas IV SDN 01 Jurang Jaler Tahun pelajaran 2019/2020. Jenis penelitian ini adalah quasi experiment dengan desain nonequivalent control group design. Populasi dalam penelitian ini adalah seluruh siswa kelas IV sebanyak 44 siswa yang terbagi menjadi 2 kelas yaitu kelas IV A dan IV B. Penelitian ini menggunakan teknik sampling non probability Sampling. Sampel dalam penelitian ini adalah kelas IV A dijadikan kelas eksperimen dengan jumlah siswa 22 orang dan IV B dijadikan sebagai kelas kelas kontrol dengan jumlah siswa 22 orang. Metode pengumpulan data yang digunakan adalah metode observasi dan tes unjuk kerja yaitu pada tes awal (pre-test) dan tes akhir (post-test). Berdasarkan tes awal (pre-test) diperoleh nilai rata-rata kelas eksperimen sebesar 57,8 dan kelas kontrol sebesar 56,9. Setelah diberi perlakuan, yatu tes akhir (post-test) diperoleh nilai rata-rata kelas eksperimen sebesar 84,0 dan kelas kontrol sebesar 73,7. Teknik analisis data menggunakan uji-t pada taraf signifikansi 5%. Berdasarkan hasil perhitungan thitung sebesar 2,939 sedangkan ttabel sebesar 2,512 yang berarti t hitung (2,939) > t tabel (2,512), maka Ha diterima dan Ho ditolak. Sehingga dapat disimpulkan bahwa ada pengaruh media gambar terhadap kemampuan menulis karangan deskripsi siswa kelas IV SDN 01 Jurang Jaler Tahun Pelajaran 2019/2020.
Analysis of Red Algae Seaweed (Eucheuma cottonii) Cultivation in Jerowaru District, Lombok Regency Sri Wahyuni; Muhammad Nursan; Asri Hidayati
Jurnal Biologi Tropis Vol. 23 No. 2 (2023): April-June
Publisher : Biology Education Study Program, Faculty of Teacher Training and Education, University of Mataram, Indonesia

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.29303/jbt.v23i2.4878

Abstract

Red algae seaweed (Eucheuma cottonii) is a very important commodity to be developed because it has a high selling price and production. The purpose of this study is to determine the cultivation of red algae seaweed (Eucheuma cottonii) in Jerowaru District, East Lombok Regency, analyze the feasibility of red algae seaweed cultivation business (Eucheuma cottonii) in Jerowaru District, East Lombok Regency, find out the obstacles faced in conducting red algae seaweed (Eucheuma cottonii) cultivation business in Jerowaru District, East Lombok Regency. The method used is the descriptive method. Data collection was carried out by survey techniques. Determination of the research area is carried out by purposive sampling or deliberately. The determination of the number of respondents was carried out by the Slovin method, which was 42 respondents. The collection of respondents was carried out using the Proportional Random Sampling method. The results showed that (1) the average profit obtained is IDR 19,532,149.98 per arable land area or IDR 23,902,980.75 per hectare during one harvest season; (2) the cultivation of red algae seaweed (Eucheuma cottonii) in Jerowaru District is feasible; (3) obstacles faced by farmers in red algae seaweed cultivation business (Eucheuma cottonii) in Jerowaru District, namely lack of capital, lack of labor, pest attacks, diseases, weeds, and erratic weather. It is recommended for farmers to cultivate red algae seaweed (Eucheuma cottonii) in Jerowaru District to increase productivity and be able to overcome the obstacles faced by participating in seaweed cultivation training activities held by related agencies.
RECHARGEABLE ALLUMUNIUM ION (Al-ion) BATTERY WITH BASIC MATERIAL ACTIVATED COCONUT SHELL CHARCOAL Sri Wahyuni; Fitriah
Jurnal Penelitian dan Kajian Ilmiah Kesehatan Politeknik Medica Farma Husada Mataram Vol. 4 No. 2 (2018): JURNAL PENELITIAN DAN KAJIAN ILMIAH KESEHATAN POLITEKNIK MEDICA FARMA HUSADA MA
Publisher : Politeknik Medica Farma Husada Mataram

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (774.422 KB) | DOI: 10.33651/jpkik.v4i2.40

Abstract

This study aims to know the tecnique of making of rechargeable Al-ion battery with basic material activated coconut shell charcoal and to know the best composition of materials to produce optimum potential (V) and current (mA). The working principle of battery using electrochemical process to produce potential (V) and electric current (mA). In wich principle is indeed involves only the transport of elecrtons beetween two electodes separated by a conductive medium (electrolyte). There are two electrodes used in which aluminum as anode undergoes oxidation reaction and graphite as cathode undergoes reduction reaction. The optimum composition in the production of Al-ion batteries with basic marerial activated coconut shell charcoal is 7,5 grams activated coconut shell charcoal, 2,5 grams polypyrol catalyst (MnO2), and NaCl 4,5 %. This composition produce 2,05 mA at the first hours as optimum current capacity the first hour of 45 mA because the remaining wet condition of electrolyte at this point allows the electrons to move easily. For the value of the optimum voltage in the last hours is a discharge voltage of 2,05 volts and superfast charging time is only one minute.
Co-Authors Asri Hidayati Fitriah Heri Hadi Saputra Husniati Husniati Muhammad Nursan