Q-enhancement with on-chip inductor optimization for reconfigurable Δ-Σ radio-frequency ADC

The paper details on-chip inductor optimization for a reconfigurable continuous-time delta-sigma (Δ-Σ) modulator based radio-frequency analog-to-digital converter. Inductor optimisation enables the Δ-Σ modulator with Q enhanced LC tank circuits employing a single high Q-factor on-chip inductor and lesser quantizer levels thereby reducing the circuit complexity for excess loop delay, power dissipation and dynamic element matching. System level simulations indicate at a Q-factor of 75 Δ- Σ modulator with a 3-level quantizer achieves dynamic ranges of 106, 82 dB and 84 dB for RFID, TETRA, and Galileo over bandwidths of 200 kHz, 10 MHz and 40 MHz respectively.

Rational Thinking and Belief in Psychic Abilities: It Depends on Level of Involvement

Previous research has shown that lay believers in psychic abilities are more prone to intuitive thinking, less inclined to rational thinking, and have an external locus of control, compared to non-believers. Psychic practitioners, however, may have different characteristics. Psychic practitioners (N=31; mean age = 42.7 years, s.d.=13.1), lay believers (N=33; mean age = 33.0 years, s.d.=10.3), and non-believers (N=31; mean age = 34.4 years, s.d.=15.4) completed questionnaires measuring thinking styles, locus of control, and psychic belief. Comparisons of lay believers with non-believers confirmed previous observations; believers had a higher propensity for intuitive thinking, lower propensity for rational thinking, and more external locus of control. In contrast, practitioners were equivalent to non-believers in rational thinking and had the highest internal locus of control. This highlights the importance of considering level of involvement with psychic practice in understanding the thinking styles of believers. Results suggested that practitioners may have rationalised their beliefs and constructed a coherent model of psychic phenomena that satisfies a propensity for rational thinking within a community of belief.