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Stabilisasi tanah merupakan upaya memperbaiki tanah dalam keadaan tertentu sehingga didapatkan karakteristik tanah yang diinginkan dengan menambah zat aditif untuk meningkatkan kekuatan tanah. Tujuan penelitian ini untuk mengetahui sifat fisis dan mekanis tanah asli, mengetahui pengaruh bahan stabilisasi tambahan terhadap tanah, dan perbandingan pada campuran optimal. Penelitian ini menggunakan bahan semen PCC dan semen instan. Metode yang digunakan dalam penelitian ini yaitu pengujian laboratorium dengan uji kuat tekan bebas (UCT) dengan masing masing bahan aditif menggunakan komposisi campuran 0%,4%,8% dan 12%. Berdasarkan pengujian sifat fisis tanah asli memperoleh nilai berat jenis rata rata 2,595, (γb) 1,637 gr/cm³, dan termasuk jenis tanah lempung organik dengan plastisitas sedang sampai tinggi (OH). Berdasarkan sifat mekanis diperoleh dengan uji UCT tanah asli memiliki nilai kuat tekan bebas 0,677 kg/cm2 dengan Cu yaitu 0,338 kg/cm2. Untuk kuat tekan bebas tanah asli dan semen PCC paling tinggi didapat 1,776 kg/cm2 pada komposisi bahan stabilisasi semen PCC sebesar 8%, dan kuat tekan tanah asli dan semen instan paling tinggi didapat sebesar 1,967 kg/cm2 pada campuran semen instan 8%. Berdasarkan penelitian dapat disimpukan bahan paling optimal yaitu semen instan dengan komposisi campuran 8%. Perbandingan kuat tekan bebas dari tanah asli dibandingkan dengan semen PCC dan semen instan yaitu 0,677; 1,776;1,967.

Objective: This scoping literature review is intended to identify factors that influence Psychological well-being and see the gap synthesis of previous studies. Introduction: Students as the next generation of the nation often face various challenges, both in academic, social, and personal fields. These challenges can affect their psychological well-being, which is an important aspect in supporting the success of studies and life as a whole. Methods and analysis: This study uses 5 main stages, namely the stage of identifying questions, identifying relevant studies, selecting study results, data extraction, data synthesis. Specifically using the PCC framework and paying attention to inclusion and exclusion criteria so that the final results are obtained. Results: The results found from the data selection found a total of 8,401 articles from 1 database and duplication was done twice (in the first check using Rayyan.ai the second work during data selection with Rayyan.ai n = 807 After duplication of data selection based on inclusion exclusion criteria, 63 relevant articles were found. After manual re-detection, the final results were 13 articles that were most relevant to the research topic.    

Indonesia is an area rich in sea sand. The aim of this research is to determine the comparison of the compressive strength of mortar derived from sea sand and river sand, as well as the feasibility of using sea sand as a material in construction in coastal areas. The results of the research showed that the compressive strength of the mortar from the two materials tested at 28 days had a difference in compressive strength of up to 37.45%, the mortar made from sea sand aggregate produced a mortar compressive strength of 14.13 Mpa which can be categorized as type S mortar with minimum value 12.5 MPa, meanwhile, mortar made from fine river sand aggregate produces a mortar compressive strength of 22.59 MPa and is included in the type M mortar category which has a minimum value of 17.2 Mpa.  

According to PUSAKOM in 2022, the prevalence of poisoning in Indonesia in 2021 was 5,921 cases, which is the total number of cases from various categories of causes of poisoning. It was found that 998 cases (17%) were cases of drug and food poisoning, and the other 4,923 cases (83%) were not cases of drug and food poisoning. Poisoning is a condition where psychoactive substances enter which cause disturbances in consciousness, cognition, perception, effects, behavior, function and psychophysiological responses. The Poison Control Center (PCC) was established to assist in the prevention, diagnosis and management of toxicity cases. PCC contributes to various sectors, including education in the field of toxicology and public education, public health by reducing the number of poisoning cases, to the economy by producing a high cost-benefit ratio. However, PCC has not yet been formed in Indonesia. Therefore, there is a need to study the impact of the Poison Control Center and its potential when implemented in Indonesia. The analysis was carried out using article and literature review methods. The results obtained from the review show that the Poison Control Center has enormous potential when implemented in Indonesia from an economic, educational, and health perspective.