Word: nitrogenated
(lookup in dictionary)
(lookup stats)
Dates: all
Sort By: most recent first
(reverse)
...past, efforts to discover drugs for use in the brain have been governed by the assumption that any such chemical compound needed to contain a nitrogen atom. As a result, all current drugs which target the brain have nitrogen atoms...
Unhappily for reefs, humans upset the balance between corals and their competitors in many ways. Consider the erosion that accompanies deforestation and agriculture. No longer restrained by tree roots, tons of soil laden with nitrogen and phosphate washes into rivers and then sweeps into the sea, forming a muddy plume that may be hundreds of miles long. As this nutrient-rich water flows over a reef, it stimulates the growth of all kinds of algae--including the microscopic diatoms and dinoflagellates that nourish such reef animals as the crown-of-thorns starfish. In recent years hordes of these coral-devouring...
...Still, untold trillions of charged particles manage to leak through. Some are trapped to form the Van Allen radiation belts that surround the earth. Others spiral down the magnetic field lines that project from the North and South poles. Energy unleashed by this disturbance excites atoms of nitrogen and oxygen, which in turn emit pulses of colored light. The result: an aurora...
...that it is under way, the liquidation will not take long. Last Thursday workers at fertility clinics across Britain started taking vials out of liquid-nitrogen storage vats and allowing them to thaw. In some cases, the tiny specks inside--each the size of a pinpoint and consisting of one to four cells--were dosed for good measure with rubbing alcohol or salt water. By sometime next week, it will all be over. About 3,300 fertilized human eggs and potentially viable embryos will have been destroyed...
Joseph McCarthy's research interests relate to the regulation of plankton productivity in the sea and, in recent years, have focused on the cycling of nitrogen in planktonic ecosystems