1 Subjects: “...happiness, optimization, stress, physical activity, poverty, welfare...”

2 Subjects: “...optimal experience...”

3 Subjects: “...mutual optimism...”

4 Subjects: “...dispositional optimism...”

5 Subjects: “...machine evolution and optimization...”

6 Subjects: “...optimism...”

7 Subjects: “...optimism...”

8 Subjects: “...process optimization...”

9 Subjects: “...optimized unpowered ventilator...”

10 Subjects: “...optimal grace...”

11 Subjects: “...optimized deep belief networks...”

12 Subjects: “...optimism...”