Fueling Fertility Is Emptying the Planet's Resources

Fueling America Through Renewable Resources

Introduction Biomass energy has received much attention in recent years. We now use about one third of the U.S. corn crop for biofuels. More recently, attention has focused on cellulosic resources—dedicated energy crops like switchgrass, miscanthus, and corn stover. Now the question has been raised concerning the economics of collecting just the corn cobs for energy instead of the stover. This ...

The COVID-19 Pandemic: Is It A Wolf Consuming Fertility?

Fueling the Agn

Active Galactic Nuclei are fueled from material (gas or stars) that are in general far away from the gravitational influence of the central black hole, the engine thought to be responsible for their activity. The required material has a lot of angular momentum, that is a priori quite difficult to evacuate. The various dynamical mechanisms that may play a role in this game are reviewed, includin...

Fueling the debate.

126 Homeopathic remedies are undergoing a resurgence of popularity because the patient can administer them without a prescription, and they are alleged to have no adverse side effects. They are readily available in most drug stores and pharmacies, despite the fact that the theory of homeopathy is contrary to the theoretical foundation of every pharmacist's training. In some countries, patients ...

Fueling the hypertrophied heart.

Substrate utilization by heart muscle provides the fuel for both maintenance of structure and function of the myocardium and for ample reserve capacity to meet sudden surges in cardiac energy requirements. Many factors influence the balance of substrate uptake by the myocardium, but in general, utilization of lipids versus carbohydrates correlates to their concentration in the arterial blood. T...