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Efektivitas Media Busy Book Dalam Upaya Meningkatkan Kemampuan Penjumlahan bagi Anak Tunarungu Kelas V di SLB Al- Fitri Yanti; Grahita Kusumastuti
Jurnal Penelitian Pendidikan Khusus Vol 11, No 1 (2023)
Publisher : Universitas Negeri Padang

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Abstract

This busy book media is used to determine the effectiveness of busy book media on children's ability to add without saving for deaf children in class V SDLB. This is experimental research form Single Subject Research (SSR) with Multiple Baseline Across Subjects Design. The subjects in this study were deaf children in class V SDLB. Research variables increase the ability to add without saving. Data collection techniques used are tests and data collection tools in the form of test items. Graphical visual analysis is a data analysis technique used in this study. The results of the research and discussion explain that the ability to add without storing in children has increased during the intervention in the form of busy book media. It has been proven that there is an increase in the summation ability from the baseline phase to the intervention phase where the results of the trend of stability mean level A1 in the first subject (K) is 2.75 then there is an increase when given intervention B where the mean level is 5.33 and in the second subject ( Q) the results obtained that the mean level stability trend of A1 was 3.4 then there was an increase when given intervention B where the mean level was 4.7. So it can be concluded that there is an increase in each condition which means the child is able to do addition without saving.
Implementasi Steganografi Menggunakan Metode Least Significant Bit (LSB) dalam Pengamanan Informasi pada Citra Digital Fitri Yanti; Khairi Budayawan
Voteteknika (Vocational Teknik Elektronika dan Informatika) Vol 11, No 1 (2023): Vol. 11, No 1, Maret 2023
Publisher : Universitas Negeri Padang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24036/voteteknika.v11i1.121968

Abstract

Penggunaan teknologi sebagai sarana dalam penyampaian informasi menimbulkan dampak terutama dari segi keamanan dan kerahasiaan informasi. Ketika pengirim pesan hanya menunjukan pesan pada orang tertentu dan tidak ingin jika pesan yang dikirimkannya diketahui pihak lain, untuk terhindar dari kebocoran informasi maka dari itu teknik penyembunyian pesan sangat diperlukan. Salah satu metode yang digunakan dalam penyembunyian informasi yaitu metode Least Significant Bit (LSB) pada steganografi. Metode ini merupakan salah satu metode yang sering digunakan, sederhana, cepat dalam proses ekstraksi, serta memiliki daya tampung penyisipan yang cukup besar. Pesan akan disisipkan dengan cara mengganti bit terakhir pada citra penampung dengan bit pesan dengan catatan jumlah bit pada pesan tidak melebihi bit citra penampung. Berdasarkan hasil penelitian citra hasil steganografi jika dibandingkan dengan citra awal sangat sulit dibedakan dengan mata. Sehingga dapat disimpulkan bahwa teknik steganografi LSB yang dikombinasikan dengan vigenere cipher dinilai baik untuk penyembunyian pesan.Kata kunci : Steganografi,  Least Significant Bit (LSB), Vigenere Cipher The use of technology as a means of delivering information has an impact, especially in terms of security and confidentiality of information. When the sender of the message only shows the message to certain people and does not want the message sent to be known to other parties, to avoid information leakage, therefore message hiding techniques are needed. One of the methods used in information hiding is the Least Significant Bit (LSB) method in steganography. This method is one method that is often used, simple, fast in the extraction process, and has a large enough insertion capacity. The message will be inserted by replacing the last bit in the container image with the message bit provided that the number of bits in the message does not exceed the container image bits. Based on the research results, the steganography result image when compared to the initial image is very difficult to distinguish by eye. So it can be concluded that the LSB steganography technique combined with the Vigenere cipher is considered good for message hiding.Keywords: Steganografi,  Least Significant Bit (LSB), Vigenere cipher