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Nitrogen fixation is a key component of the nitrogen cycle, one of the most fundamental cycles in the biosphere. Conversion of atmospheric nitrogen into organic nitrogen compounds can be carried out only by certain bacteria and blue-green algae (cyanobacteria). Some nitrogen fixing bacteria live symbiotically with leguminous plants such as peas, beans, clover, and certain tropical trees in nodules on the plants' roots, while others live independently in the soil and aquatic habitats. By the activity of these microorganisms, the soil is enriched with the nitrogen required for plant growth and...

Nuclear Receptors and Genetic Disease provides the first compilation of the role of nuclear hormones in health and disease and incorporates the latest breakthroughs in the field. It provides comprehensive reviews of the major receptors prepared by the acknowledged experts in each area. Each chapter provides information on the history, physiology, structure, mechanism of action, genetics, pathophysiology, disease diagnosis, and disease treatment for a particular nuclear receptor. Each chapter also includes a table showing all the known mutations of the respective nuclear receptor with...

Collected from over a decade and a half, Spoken Word is an autopsy of family and personal journey revealed through verse. Often times sensual, and driven by the social restraints of politics, the poet's voice and stalwart obligation to examine the human condition is at the forefront of this body of work. Born in Washington, DC in 1967, and raised in southern Maryland, this collection reflects the poet's journey through the badlands of New Mexico and his return to the East Coast. The visionary mind behind the independent production of Poetry Television and the award-winning filmmaker of the...