In this paper, a modified van der Pol equation is considered as a description of the heart action.This model has a number of interesting properties allowing reconstruction of phenomena observed Kratom Gummies in physiological experiments as well as in Holter electrocardiographic recordings.Our aim is to study periodic solutions of the modified van

The effects of physical activity on brain function, the mechanisms involved, Crop Jumper adaptations, and clinical implications are topics of great importance given the increasingly common sedentary lifestyle.This paper explores these relationships, starting with the evolutionary aspects of brain development in the context of physical activity.It d

This study examines the properties of cementitious composites incorporating volcanic ash (VA) and dune sand.The effect of five mix design parameters was studied using the Taguchi method.The fresh, mechanical, and durability properties of sixteen mixes were evaluated.To convert the evaluation from single criterion to multi-criteria, a hybrid Taguchi

Most studies about the insect community in rainforests only focus on the forest understory, and even though the rainforest canopy is one of the most fascinating and diverse environments, it remains poorly explored.Therefore, we analyzed the difference between the social wasp composition in these two strata at the ZF-2 Station in the Brazilian Amazo

The promise of efficacious vaccines against SARS-CoV-2 is fulfilled and vaccination campaigns have started worldwide.However, the fight against the pandemic is far from over.Here, we propose an age-structured compartmental model to study the interplay of disease transmission, vaccines rollout, and behavioural dynamics.We investigate, via in-silico