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Biomedical subjects

M A Carter

Publications and source records attributed to M A Carter.

At least 19 recordsLinked to original sources

Prevalence of smoke detectors and safe tap-water temperatures among welfare recipients in Memphis, Tennessee.

The poor are at high risk for fire- and scalding-related injuries and deaths, many of which could be prevented by installing smoke detectors and reducing residential tap-water temperatures to safe levels. The goal of this study was to measure the prevalence of smoke detectors and safe tap-water temperatures among welfare recipients and compare subjects living in safe and unsafe homes. We interviewed 109 black women residing in inner-city Memphis who were receiving Aid to Families with Dependent Children and inspected their homes for functional smoke detectors and safe tap-water temperatures. Of the 533 residents reported to live in the homes visited for this study, 53.1% were not protected by smoke detectors. More crowded residences were substantially more likely to lack detectors. Most of the smoke detectors which were present were provided by landlords. Of 69 smoke detectors examined, 17.4% did not work. Of the 153 children age 0-5 years living in the homes we visited, 79.1% lived in residences with excessively hot tap water (> 54 degrees C). We conclude that additional efforts are needed to increase the use of smoke detectors and to decrease excessively hot tap water in the homes of welfare recipients.

Adolescent

The apparent absence of a cortical reaction after fertilization in a sea anemone.

Eggs, embryos and larvae of the intertidal sea anemone Actinia fragacea were obtained from spontaneous spawnings in the laboratory and have been examined by scanning and transmission electron microscopy. The eggs average 150 micron in diameter and are covered by tufts of large microvilli known as cytospines, but are not surrounded by a jelly layer or a vitelline coat. The cortical layer of the egg contains large numbers of dense, homogeneous cortical granules. The surface layers of cleavage and blastula stage embryos are similar in composition to those of unfertilized eggs in that the cytospine tufts remain intact and the number of cortical granules remains apparently undiminished. No major discharge of cortical granules indicative of a cortical reaction can have occurred. During gastrulation, many embryos take up large numbers of sperm by a process resembling phagocytosis. These sperm undergo breakdown in the superficial regions of the embryos. The cortical granules persist well into larval life, and their function is unknown.

Animals

Real nursing.

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Humans

Why do we care?

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Humans

Can you see me?

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Humans

And the beat goes on.

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Consultants