Мая ГачеваСофийски университет „Св. Климент Охридски“ (България)
https://doi.org/10.53656/nat2022-5.01
Резюме. Проблемът за оценяването в смесените училища, в които се провежда дуално обучение на два езика и по два вида национални стандарти, е решен успешно в интернационалното училище, обект на настоящото изследване...
1) Department of Petroleum Engineering, Mining University (Russia)2) Scientific Research Center, SPB (Russia)
https://doi.org/10.53656/nat2022-5.02
Abstract. The paper presents the results of laboratory and field experiments on a developed polymer gel-forming composition “PSB” that enhances oil recovery. In this composition, two aqueous solutions are used: a polymeric gelling agent and an inorganic crosslinker...
Onitilo S. A.1), Usman M. A.1), Daniel D. O.2)*, Odetunde O. S.1),Ogunwobi Z. O.1),Hammed F. A.1),Olubanwo O. O.1), Ajani A. S.1), Sanusi A. S.3), Haruna A. H.1)1)Department of Mathematical Sciences, Olabisi Onabanjo University (Nigeria)2)Department of Mathematics and Computer Science, Southwestern University (Nigeria)3)Department of Plant Science, Olabisi Onabanjo University (Nigeria)*Corresponding Author: deborah.daniel@mysun.edu.ng
https://doi.org/10.53656/nat2022-5.03
Abstract. In this paper, a deterministic model SEIR-SEI model of malariatransmission consisting of systems of ordinary differential equations, describingthe transmission of malaria between humans and female anopheles mosquitoes, thedefinitive hosts of Plasmodium parasites, is examined...
1)Department of Mechanical and Manufacturing Engineering, Manipal Institute of Technology,Manipal Academy of Higher Education2)Bhagwan Mahavir College of Basic and Applied Sciences, Bhagwan Mahavir University*Corresponding author
https://doi.org/10.53656/nat2022-5.04
Abstract. The incorporation of nature’s design and development in the higher science education system and research practice is emphasized to foster improved awareness of foundational skills in molecular biology among learners...
Станислав Сланев, Хафизе Шабан,Шебнем Шабан, Анета МариноваПрофесионална гимназия по икономика – Шумен
https://doi.org/10.53656/nat2022-5.05
Резюме. Описана е постановка за измерване скоростта на звука във въздух. Експериментът може да се възпроизведе с подръчни средства във всяко училище...