Previous studies have documented the promising results from student-constructed representations, including stop-motion animation (SMA), in supporting mechanistic reasoning (MR), which is considered an essential thinking skill science education. Our current study presents theoretically and empirically how SMA contributes to promoting MR. As a theoretical perspective, we propose framework hypothe...

Trace elements such as zinc (Zn), copper (Cu) and boron (B) are important micronutrients for crop production. Their bioavailability is essential to crops yield quantity quality in many tropical soils. Nutrient depends partly on the soil nutrient status, particular reactive soluble fractions. Adsorption/desorption precipitation/dissolution processes control partitioning of pool over solid soluti...

ABSTRACT In the new Brazilian mechanistic-empirical design method of asphalt pavements, MeDiNa, characterization permanent deformation (PD) for selection soils and gravel is based on tests performed with at least 150,000 loading cycles each nine specimens indicated in DNIT standard. Despite providing information about material behavior under a wide range testing conditions, experimental program...