Adanya kemudahan menandatangani lembar pengesahan skripsi secara digital menimbulkan masalah yaitu tanda tangan digital dapat diduplikasi sehingga mudah sekali digunakan oleh pihak yang tidak bertanggung jawab. Oleh karenanya dibutuhkan sistem verifikasi untuk mengenali keabsahan lembar pengesahan skripsi Tujuan penelitian ini adalah menerapkan metode RSA untuk verifikasi tanda tangan digital pada lembar pengesahan skripsi dengan mengecek keabsahan lembar pengesahan skripsi mahasiswa, sehingga dapat mencegah tindakan curang mengesahkan lembar pengesahan skripsi oleh pihak yang tidak bertanggung jawab tanpa sepengetahuan dosen yang bersangkutan. Hasil dari penelitian yang telah dilakukan yaitu merancang aplikasi tanda tangan digital yang dapat memverifikasi tanda tangan dosen yang telah diekstrak menggunakan metode RSA pada lembar pengesahan skripsi mahasiswa berekstensi PDF, dan proses verifikasi sistem dengan cara membandingkan nilai hash antara tanda tangan digital yang tersimpan dalam database dengan tanda tangan digital yang termuat pada file lembar pengesahan skripsi mahasiswa.

Background D-dimer is a well-known marker for abnormal hemostasis in acute ischemic stroke (AIS), indicating the presence of fibrin degradation due to thrombus formation and lysis. The diagnostic performance of D-dimer for different AIS types in the Indonesian population has not been established. The aim of this study is to compare the plasma D-dimer levels in three of the most common AIS subtypes in Indonesia; the cardioembolic, large artery atherosclerosis (LAA), and small-vessel occlusion (SVO), and to determine its most optimal diagnostic performance. Results In this cross-sectional study, 64 subjects with confirmed AIS diagnosis at the Wahidin Sudirohusodo General Hospital Makassar between June and October 2019 were recruited. Plasma D-dimer levels were measured and grouped according to the subtype of acute ischemic stroke based on the TOAST classification. A significant difference was observed between the D-dimer levels across the three AIS subtypes, with an average D-dimer of 2.93 ± 1.7, 1.27 ± 0.81, and 0.56 ± 0.46 µg/ml in the cardioembolic, LAA, and SVO subtypes, respectively. As a marker of cardioembolic stroke, an optimal cut-off was determined to be 1.52 µg/ml, yielding a sensitivity of 84.44% (CI 71.22–92.25% and specificity of 84.21% (CI 62.43–94.48%). Conclusion Plasma D-dimer levels varied significantly between the cardioembolic, LAA, and SVO subtypes of AIS, with the highest D-dimer level in the cardioembolic subtypes. As a marker of cardioembolic stroke, an optimal cut-off was determined to be 1.52 µg/mL, yielding a sensitivity and specificity of 84.44% and 84.21%, respectively.

Excellent product and service quality is important in the era of industrial competition to win the competition. Companies must play an important role and WIKA Beton as a leading Pile Construction company in Indonesia and even in Asia has taken part in having 14 factories with 1 mibile Plant. The problem that occurs is that some products are damaged or defective. Due to the low quality of the pile product and defects it will reduce the value of the product. Objective: To find out the cause of the recorded product using the seven tools method. Methods: identification and environmental mapping of the problems causing the occurrence of recorded products. Results and Discussion: Damage and defects in the concrete pile products must be repaired using the 7-Tools method (seven tools. Defective products after using the seven tools can be seen the types of defects that exist such as peeling, corrosion of steel bones, deflection, hollow and porous The secondary causes are due to environmental factors, humans, methods, materials, machines. The secondary causes are significant, namely, the environment is dusty and dirty, dirty air, noisy, and high temperature. Human factors are lack of discipline, tired eyes, lack of thorough, fatigue of workers. On the material, corrosion (rusting) occurs on the reinforcement, the mixture of materials changes in volume, evaporation of water in the concrete mixture, the thickness of the concrete blanket is too large. Applying 5S, improving work position, monitoring temperature during production, checking and cleaning tools after use, checking the machine every week by the maintenance division Conclusion: the cause of the occurrence note products are due to primary and secondary factors as well as halal awareness factors in the scope of work and work processes, it is very possible to create superior performance based on halal knowledge (halal knowledge), so that the seven tools can be equipped with Halal awareness factors as factors that affect performance towards zero product notes on the concrete product