The problem When using Model.joins() with an association that contains left_joins and where conditions, Rails incorrectly moves NULL checks from the WHERE clause to the LEFT JOIN's ON clause. This ...

Table 1 also demonstrates three strategies for selectively sampling subjects to reduce study costs. In the first sampling strategy, subjects were ranked according to their Z value and every other Y ...

In quantum field theory, violation of the energy condition also depends on the quantum states apart from the geometry of curved spacetime. Hence, the quantum effects play an important role in the ...