Chemie Amide

"this article is intended to start users down the path toward a better answer. It will cover battery vocabulary and two simple but fundamental battery rules. It will also break down different battery technologies and provide a formula for calculating battery life. For my examples, I'll be referring to AA-sized batteries. While almost any size will do, AA batteries are the most common battery size and, because they are readily available in most battery chemistries, they are easy to compare."

Modern portable micro-systems like biomedical implants and ad-hoc wireless transceiver micro-sensors continue to integrate more functions into smaller devices, which result in low energy levels and short operational lives. Researchers and industry alike are consequently considering harvesting energy from the surrounding environment as a means of offsetting this energy deficit. Even with power efficient designs, low duty-cycle operation, smart power-aware network architectures, and batteries with improved energy density, the stored energy in micro-scale systems is simply not sufficient to sustain extended lifetimes. Fortunately, the surrounding environment is a rich source of energy, from solar and thermal to kinetic, but harnessing it without dissipating much power in the process is challenging. In this paper, an electrostatic vibrational energy harvester circuit is proposed and evaluated. It harnesses energy from inherent vibrations in the system (e.g., engine-powered applications) by modulating the parallel-plate distance of a variable capacitor and channeling the resulting change in charge into a secondary Li-ion micro-battery. The varactor, in essence, behaves like a vibration-dependent current source. Simulations show that a 100-to-1 pF variable plate capacitor subjected to vibrations with a period of 15 mus produces an average harvesting current of 40.8 muA, an energy gain of 569 pj per cycle, and a net average power gain of 38 muW.

This is a helpful, careful discussion about treatment of bipolar depression (especially pharmacological treatment). Well worth following the URL to access the freely viewable full text - http://tinyurl.com/3kbky5

Newest battery technology

Argues from a systematic review of research that "In the long-term treatment of bipolar disorder clinicians should initially aim for serum lithium levels of 0.6–0.75 mmol/L, while higher levels may benefit patients with predominantly manic symptoms."