H. Kenneth Walker

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Problem lists are tools to improve patient management. In the medical record, they connect diagnoses to therapy, prognosis, and psychosocial issues. Computer-based problem lists enhance paper-based approaches by enabling cost-containment and quality assurance applications, but they require clinically expressive controlled vocabularies. Because existing(More)
Human alteration of the nitrogen (N) cycle has produced benefits for health and well-being, but excess N has altered many ecosystems and degraded air and water quality. US regulations mandate protection of the environment in terms that directly connect to ecosystem services. Here, we review the science quantifying effects of N on key ecosystem services, and(More)
Definition This nerve supplies the sternocleidomastoid and trapezius muscles, which have the following functions : 1. Rotation of head away from the side of the contracting sternocleidomastoid muscle. 2. Tilting of the head toward the contracting sterno-cleidomastoid muscle. 3. Flexion of the neck by both sternocleidomastoid muscles . 4. Elevation of the(More)
Definitions Hyperosmia is increased olfactory acuity, and hypoosmia is diminished olfactory acuity. Anosmia, the inability to recognize odors, may be unilateral or bilateral. Dysosmia is an abnormal sense of smell. Technique Carry a vial of a nonirritating substance in your bag ; vanilla, lemon, and freshly ground coffee are good examples, and tobacco or(More)
Definition The suck reflex consists of sucking movements by the lips when they are stroked or touched. The snout reflex involves puckering or protrusion of the lips with percussion. The muscles around the mouth and base of the nose contract. In the palmomental reflex, a stimulus to the thenar area of the hand causes a reflex contraction ipsilaterally of the(More)