in recent years, mathematics is an essential aspect of all areas of daily life and the best predictor of being successful in economic situations of society. for many students, the mathematics accompanied with frustration, anxiety and negative attitudes towards mathematics. these students believe their anxiety have been derived from their math teachers, math misconception and weakness in math as...

A key component of the shift from an emergency to a long-term response to AIDS is a change in focus from HIV prevention interventions focused on individuals to a comprehensive strategy in which social/structural approaches are core elements. Such approaches aim to modify social conditions by addressing key drivers of HIV vulnerability that affect the ability of individuals to protect themselves...

2. A new type of causal models was formulated, based on embedding structural considerations in the language of sequential, temporal situation calculus. By using situation calculus as a basic language, we leverage its power to express complex, dynamically changing situations and, by relying on structural considerations, we can formulate an e ective theory of counterfactuals within the situationc...

The discovery that stress and depression, as well as other psychiatric illnesses, are characterized by structural alterations, and that these changes result from atrophy and loss of neurons and glia in specific limbic regions and circuits, has contributed to a fundamental change in our understanding of these illnesses. These structural changes are accompanied by dysregulation of neuroprotective...