Currently the hospital is a place that is very vulnerable to the transmission of Covid-19, so giving birth in a hospital is very risky. In addition, the hospital currently only accepts cesarean deliveries, while mothers who can give birth vaginally are recommended to give birth in a midwife because the chances of being exposed to Covid-19 are much lower. In general, this study aims to examine the performance of the LDA-SVM method in predicting whether a prospective mother needs to undergo a C-section or simply give birth normally. The aims of this study are: 1) to determine the best parameters for building the detection model; 2) to determine the best accuracy from the model; 3) to compare the accuracies with the other methods. The data used in this study is the dataset of caesarian section. This data consists of the results of 80 pregnant women following C-section with the most important characteristics of labor problems in the clinical field. Based on the results of the experiments that have been carried out, several parameter values that provide the best results for building the detection model are obtained, namely σ (sigma) –5.9 for 70 % training data, σ=4, –6.1 and ‑6.6 for 80 % training data and σ=4 and 16 for 90 % training data. Besides, the results obtained show that the LDA-SVM method is able to classify the C-section method properly with an accuracy of up to 100 %. This research is also able to surpass the methods in previous studies. The results show that LDA-SVM for this case study generates an accuracy of 100.00 %. This method has great potential to be used by doctors used as an early detection to determine whether a mother needs to go through a C-section or simply give birth vaginally. So that mothers can prevent the transmission of Covid-19 in the hospital

One of the encryption algorithms is the Hill Cipher. The square key matrix in the Hill Cipher method must have an inverse modulo. The unimodular matrix is one of the few matrices that must have an inverse. A unimodular matrix can be utilized as a key in the encryption process. This research aims to demonstrate that there is another approach to protect text message data. Symmetric cryptography is the sort of encryption utilized. A Bernoulli Map is used to create a unimodular matrix. To begin, the researchers use an identity matrix to generate a unimodular matrix. The Bernoulli Map series of real values in (0,1) is translated to integers between 0 and 255. The numbers are then inserted into the unimodular matrix's top triangular entries. To acquire the full matrix as the key, the researchers utilize Elementary Row Operations. The data is then encrypted using modulo matrix multiplication.

__________________________________________________________________________ AbstractThe low ability of Self-Regulated Learning students who mostly come from the remote area in Papua, motivates researchers to conduct research by applying Hypnoteaching in the learning process. One of the reasons for the low ability of Self-Regulated Learning students is the habit of those who have not been able to regulate and direct themselves in learning. Hypnoteaching, also called giving positive suggestions, is expected to be able to direct their minds to change learning behavior to be organized and directed. In other words, this will affect the ability of student Self-Regulated Learning. The purpose of this study was to find out: 1) how to increase the ability of Papuan Self-Regulated Learning after Hypnoteaching was applied in Mathematics Courses, 2) how students respond to the application of Hypnoteaching in Mathematics Courses. This type of research is Classroom Action Research with the subject of research are Papuan students in the Mathematics Learning Design Course at STKIP Surya Tangerang 2017/2018 Academic Year. Data collection techniques in the form of questionnaires, field notes, and observation sheets. The data analyzed is only questionnaire data by processing questionnaire scores that are converted into interval data, then determined attitude scores and neutral scores. The results showed that the application of hypnoteaching can improve the ability of self-regulated learning for Papuan students to be better. This can be seen from the percentage of attitude scores related to the ability of self-regulated learning which experienced an increase of initially by 61% in the pre-cycle, increasing to 72% in the first cycle and 74% in the second cycle. Regarding student responses, it was concluded that students gave a positive response to the application of hypnoteaching.

Diabetes is one of the most serious health challenges in both developed and developing countries. Early detection and accurate diagnosis of diabetes can reduce the risk of complications. In recent years, the use of machine learning in predicting disease has gradually increased. A promising classification technique in machine learning is the use of support vector machines in combination with radial basis function kernels (SVM-RBF). In this study, we used SVM-RBF to predict diabetes. The study used a Pima Indian diabetes dataset from the University of California, Irvine (UCI) Machine Learning Repository. The subjects were female and ≥ 21 years of age at the time of the index examination. Our experiment design used 10-fold cross-validation. Confusion matrix and ROC were used to calculate performance evaluation. Based on the experimental results, the study demonstrated that SVM-RBF shows promise in aiding diagnosis of Pima Indian diabetes disease in the early stage.

__________________________________________________________________________ AbstrakStudi ini dilaksanakan untuk mengetahui bagaimana persepsi dosen terhadap penggunaan teknologi digital, yang biasa disebut information & communication technology (ICT), pada pembelajaran bahasa Inggris yang digunakan oleh dosen kepada mahasiswa. Metode penelitian yang digunakan adalah metode kualitatif dengan data kuantitatif. Dalam proses pengumpulan data, penulis menggunakan dua perangkat penelitian berupa kuesioner, dan wawancara terhadap dosen bahasa Inggris di PNJ. Pengkajian ini dilakukan dengan mengumpulkan informasi terkait persepsi dosen terhadap penggunaan ICT, dan juga mengidentifikasi kendala dalam penggunaan ICT pada pembelajaran bahasa Inggris. Hasil penelitian menunjukkan 100% responden setuju bahwa pengajaran bahasa Inggris sangat cocok dipadukan dengan ICT, juga setuju bahwa penggunaan ICT juga dapat membuat pembelajaran menjadi sangat menyenangkan. Sedangkan, terkait kegunaan ICT bagi Mahasiswa, 18% responden tidak setuju dengan manfaat pengajaran ICT yang akan mempermudah mahasiswa dalam mendapatkan pekerjaan (yang layak) dimasa yang akan datang. Selain itu juga, 15 hingga 25% responden juga tidak setuju bahwa pembelajaran menggunakan ICT dapat membantu mahasiswa memahami materi secara mendalam, kemudian meningkatkan nilai bahasa Inggris, dan membantu mahasiswa dalam berkomunikasi. Namun, terdapat beberapa kendala ditemukan secara intrinsik dan ekstrinsik. Kendala yang dialami dosen paling besar merupakan kompetensi dosen dalam menggunakan ICT sekaligus juga pengalaman-pengalaman buruk yang pernah dialami dosen dalam penggunaan ICT dalam kelas. Pada kendala ekstrinsik, masalah yang dihadapi dosen adalah kurangnya pelatihan ICT dan masalah koneksi internet. Kendala-kendala ini membuat para dosen menjadi berpikir dua kali dalam mengoptimalkan penggunaan ICT dalam kelas. Hasil penelitian ini dapat menjadi bahan evaluasi bagi dosen bahasa Inggris selaku pelaksana di lapangan dan bagi institusi sebagai pembuat kebijakan. Kata kunci: persepsi, ICT, pembelajaran bahasa Inggris __________________________________________________________________________ PENDAHULUAN Peran media dalam pembelajaran sangatlah penting karena dapat membantu tercapainya tujuan pembelajaran dengan efektif dan efisien. Media menjadi sarana pengganti, alat dimana di dalamnya mengandung pembelajaran yang sudah tersusun dan kemudian disampaikan kepada siswa (Clark: 2012). Walaupun ketika berbicara teknologi hal pertama yang tergambar dalam benak seseorang adalah komputer, akan tetapi teknologi pada dasarnya mencakup semua hal dari audio-tape player sampai ke video dan tentu saja komputer (Brown: 2001). Pembelajaran bahasa kedua yang berbasis information and computer technology (ICT) dapat menurunkan masalah psikologis siswa dalam mengungkapkan opini dan dapat meningkatkan cara berpikir kritis, cara memecahkan masalah dan juga keterampilan berkomunikasi melalui