Managers at the National Aeronautics and Space Administration's (NASA) Mission Operations Directorate (MOD) at the Johnson Space Center wanted to increase their insight into the cost, schedule, and quality of the software-intensive systems maintained for the Space Shuttle programs. We defined and imple-mented a software metrics set that contains thirteen metrics related to corrective and adapti...

Castleman’s disease is a rare disorder characterized by benign proliferation of lymphoid tissue. Most cases occur as a mediastinal mass, although extrathoracic involvement including nodal and extranodal locations has been reported. The left suprarenal location of this localized disease may be mistaken for an adrenal tumor. We report a case of a 51-year-old woman with a Castleman’s tumor located...

The assessment of the prevalence of disease has been accepted as an integral part of the activities of public health. In order to assess such prevalence, tools for measuring the degree as well as the absence or presence become essential. One of the most common tools employed has been the disease-index. In dental public health, the absolute prevalence of malocclusion still remains unknown. Many ...

Ectopic eruption of a first permanent molar is a common occurrence in the developing mixed dentition. Proper management is a challenge to the pediatric dentist and is crucial to a healthy occlusion. Non-treatment can result in early loss of the second primary molar, space loss, and impaction of second premolars. Future corrective treatment may be complicated, lengthy, and costly and include: th...

The loss of multiple primary molars in the primary or transitional dentition will, in many instances, lead to disturbances of the developing dentition. To prevent this, an appliance can be constructed to maintain the relationship of the remaining teeth and to guide the eruption of the developing teeth. Traditionally, the treatment of choice for maxillary loss is the placement of a Nance applian...