Basic physics practicum learning through virtual laboratories is less than optimal in developing students' science process skills. This study reveals the results of improving students' science process skills based on the application of computer scaffolding assisted by PhET simulation. This study uses a quantitative approach with a sample of 14 students through purposive sampling technique. The research stages consist of introduction, implementation, and evaluation. Collecting data through interviews, tests, and observations. Data analysis using the N-gain test. The results showed an increase in students' science process skills on several indicators with various categories. The indicator is observing 0.49 (medium category), formulating hypotheses 0.34 (medium category), carrying out experiments 0.39 (medium category), data interpretation and analysis 0.42 (medium category), communicating 0.33 (medium category), and concluded 0.29 (low category). Computer-based scaffolding with PhET simulation is an online learning solution that can also be collaborated with offline learning to improve students' science process skills.

Media has a significant role in achieving learning objectives, including critical thinking skills. This study develops Augmented Reality-based physics learning media to improve students’ critical thinking skills in XI class of senior high schools on optical instruments. This is Research and Development (RD) through the ADDIE development model (Analysis, Design, Development, Implementation, and Evaluation). The study was conducted with a small-scale trial of 30 students of XI class MIPA 1 MAN Demak. The instruments used were expert validation sheets, teacher and student response sheets, and pre-test and post-test questions for students’ critical thinking skills. The product feasibility test is carried out based on the validation results of media and material experts. N-gain test is used to determine the improvement of students’ critical thinking skills. The feasibility test results show that Augmented Reality-based learning media on optical instruments is feasible, with a feasibility score percentage of 78.79% (valid) based on media experts and 90% (very valid) based on material experts. The learning media received an excellent response from the physics teacher with an average score of 4.27 (very good) and 4.28 (very good) from the students. The use of physics learning media has increased students' critical thinking skills, based on the N-gain test results of 0.415 with moderate improvement criteria. Augmented Reality-based learning media can be applied to improve students' critical thinking skills.

Pemeriksaan kesehatan merupakan pemeriksaan yang berfokus pada pencegahan primer dan sekunder, dengan melihat secara holistik berbagai faktor kesehatan yang dapat menyebabkan penyakit tertentu di masa depan. Pemeriksaaan yang dilakukan dengan menggunakan metode non-invasif sesuai dengan salah satu prinsip zero waste yaitu mengurangi limbah medis. Tujuan kegiatan pengabdian ini adalah untuk mendapatkan profil kadar gula darah, kolesterol dan asam urat menggunakan metode non-invasif berbasis prinsip zero waste dan mencegah berbagai resiko penyakit akibat kadar yang melebihi ambang normal. Metode penerapan dalam pengabdian masyarakat ini terdiri dari tiga tahap, yakni persiapan, pelaksanaan dan evaluasi. Persiapan berupa persiapan tempat, alat dan perangkat tambahan. Pelaksanaan berupa penjelasan alat dan pemeriksaan kesehatan. Evaluasi berupa wawancara dengan warga terkait kesan saat menggunakan alat dan feedback terkait hasil pemeriksaan. Hasil pemeriksaan kesehatan pada 29 warga menunjukkan rata-rata profil kadar gula darah 148.93 mg/dl, kadar kolesterol 102.24 mg/dl, dan kadar asam urat 3.17 mg/dl. Hal ini menunjukan bahwa rata-rata kadar gula darah sedikit di atas ambang normal, sedangkan kadar kolesterol dan asam urat berada pada ambang normal. Warga merasa sangat nyaman dengan pemeriksaan non-invasif karena tidak perlu melukai jari untuk mengambil sampel.