Denver Developmental Screening Test: The Denver Developmental Screening Test (DDST) is a widely used assessment for examining children 0-6 years of age as to their developmental progress. The name “Denver” reflects the fact that this screening test was created at the University of Colorado Medical Center in Denver.
There are a number of other behavioral assessments for infants and young children. These include:
The Neonatal Behavioral Assessment Scale (NBAS) devised by the Harvard pediatrician T. Berry Brazleton and better known as “the Brazleton;”
The ELM (Early Language Milestone) scale for children 0-3 years of age;
The CAT (Clinical Adaptive Test) and CLAMS (Clinical Linguistic and Auditory Milestone Scale) for children 0-3 years of age;
The Infant Monitoring System for children aged 4-36 months;
The Early Screening Inventory for children 3-6 years of age; and
The Peabody Picture Vocabulary Test (“the Peabody”) for testing children 2 1/2 to 4 years of age.
The purposes of developmental assessment depend on the age of the child. For a newborn, testing can detect neurologic problems, such as cerebral palsy. For an infant, testing often serves to reassure parents or to identify the nature of problems early enough hopefully to treat them. Later in childhood, testing can help delineate academic and social problems, again, hopefully in time to remedy them.
Deoxyhemoglobin: The form of hemoglobin without oxygen, the predominant protein in red blood cells. Hemoglobin forms an unstable, reversible bond with oxygen. In its oxygen-loaded form it is oxyhemoglobin and is bright red. In the oxygen-unloaded form it is called deoxyhemoglobin and is purple-blue.
- Deoxyribonucleic acid
Deoxyribonucleic acid: DNA. One of two types of molecules that encode genetic information. (The other is RNA. In humans DNA is the genetic material; RNA is transcribed from it. In some other organisms, RNA is the genetic material and, in reverse fashion, the DNA is transcribed from it.) DNA is a double-stranded molecule held together […]
- Department of Energy (DOE).
Department of Energy (DOE).: One of the U.S. government agencies contributing to the Human Genome Project.
- Department of Health and Human Services
Department of Health and Human Services: The United States government’s principal agency for “protecting the health of all Americans and providing essential human services, especially for those who are least able to help themselves.” Also known as DHHS and HHS. The U.S. Department of Health and Human Services has two types of operating divisions: the […]
Depigmentation: Loss of color (pigment) from the skin, mucous membranes, hair, or retina of the eye. The color of the skin, mucous membranes, hair, and retina is due to the deposition of melanin, which is a coloring matter. Melanin is produced by specialized cells called melanocytes. Other terms pertaining to pigment include pigmentation (the presence […]