8 articles in this issue
Samuel O. Effiom,Fidelis I. Abam,Precious O. Effiom,Thomas O. Magu,Emmanuel E. John,Olusegun D. Samuel,Burhan Saeed,Macmanus C. Ndukwu,Christopher C. Enweremadu,Muhammad Latifur Rochman,Muji Setiyo
The advantages of reusability, lower cost, and environmentally friendly operation have made the heterogeneous catalyzed methylic process a preferable alternative to the homogeneously catalyzed protocol. The optimal production yield of palm kernel shell oi... see more
Meriame Laita,Belkheir Hammouti,Rachid Sabbahi,Zerhoune Messaoudi,Rachid Benkirane
The peach tree is a very water-demanding species that is affected by water stress, which is worsening due to global warming. The soil environment is also influenced by tillage and cropping methods, which affect the water content, temperature, aeration, an... see more
Meli Fiandini,Asep Bayu Dani Nandiyanto,Dwi Fitria Al Husaeni,Dwi Novia Al Husaeni,M. Mushiban
A significant difference test is used to evaluate certain treatments on the sample in two different observation periods. One of the commonly used software is SPSS which is used to analyze data which helps researchers in calculating data so that it c... see more
Primata Mardina,Hesti Wijayanti,Rinna Juwita,Meilana Dharma Putra,Iryanti Fatyasari Nata,Rowina Lestari,Muhammad Faqih Al-Amin,Regi Abizar Suciagi,Oktefani Kusuma Rawei,Liza Lestari
A corncob-derived magnetic solid acid catalyst was synthesized through the sulfonation method and an impregnation process, respectively. In the sulfonation process, the concentrated H2SO4 was utilized as an activation agent to obtain acidic properties. Th... see more
Aree Wangsupphaphol,Sotdhipong Phichaisawat,Raweewan Lengkayan
Hind Zuhair Khaleel,Attarid Khudhair Ahmed,Abdulkareem Sh. Mahdi Al-Obaidi,Senny Luckyardi,Dwi Fitria Al Husaeni,Rawnaq Adnan Mahmod,Amjad J. Humaidi
HC-SR04 ultrasonic sensor is one of the famous low-cost sensors. It is measured distance from 2 to 400 cm. It depends on ultrasonic sound waves that are sent by an electronic device to determine the distance of the object, and the reflected sound is conve... see more
Putri Amelia Solihah,Ida Kaniawati,Achmad Samsudin,R. Riandi
This research aims to improve problem-solving abilities regarding the greenhouse effect using project-based learning methods supported by Science, Technology, Engineering, and Mathematics (STEM)-Education for Sustainable Development (ESD)-based teaching m... see more
Weizhi Yang,Chowwalit Chookhampaeng,Jiraporn Chano
Spatial ability, an essential skill in modern education, is on par with language and computing abilities. However, the definition and categorization of spatial ability are still unclear, requiring further development in assessment practices and research. ... see more