Activity theory is a framework or a descriptive tool for a system. Consider the entire activity/work beyond just one actor or user. Accounts for environment, history of a person, culture, role of the artifact, complexity of real life action etc...
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- Chemical factors;
The chemical factors like the salinity and the composition are very important for the formation of the soil, as well as for determining the type of soil.
- Physical factors;
The most important of the physical factors are the erosion and deposition. While the erosion removes layers of soil from a certain places, the deposition brings that material on another place and makes layers which set of a new start for soil formation on another place.
- Climatic factors;
The climate is extremely important because it sets the basic for the soil formation. Different types of climate result in different types of soil, and the fact that the climate is the factor that enables certain plants to grow in certain conditions, makes it possible for the soil to become richer or poorer depending on the biomass available.
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Phages can also be categorized into three types according to their infection mechanism: (1) virulent phages always lyse the infected bacterial cell to release their progeny; (2) temperate phages can either enter the lytic cycle as virulent phages or enter the lysogenic cycle in which the phage genome is retained as.
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Our verbal and nonverbal COMMUNICATION provides clues to our attitude on a given topic.
Spoken or verbal communication can be done through face-to-face communication, through the use of telephones, mobile phones, radio or television and other media.
Non-verbal communication refer to our body language, our gestures, and even how we dress and act.
Other forms of communication are written communication and visualizations.
They carry a lot of things and are very portable. Multi-use items.
