Colorimetric data can be readily computed from measured spectral data, however, as illustrated by metameric pairs, the mapping from spectral data to colorimetric values is many-to-one and therefore typically not invertible. In this paper, we investigate inversions of the spectrum-to-colorimetry mapping when the input is constrained to a single color reproduction medium. Under this constraint, a...

Case of cerebrofacial arteriovenous metameric syndrome (CAMS) in a 9-year-old boy is described with arteriovenous malformation simultaneously involving the brain and face, with characteristic CAMS type 1 and 2 involvement. This patient demonstrates the wide spectrum of clinical manifestations of CAMS, and in this particular case, the patient exhibits features of hypopituitarism-an association t...

The arthropod body consists of metameric units that become manifest as the segments at the germband stage (Anderson, 1973; Scholtz, 1997). The molecular mechanisms that underlie the segmentation process have been best studied in the insect Drosophila, where segmentation genes act in a hierarchic cascade; as a result, the metameric embryo is formed. A remarkable feature of Drosophila segmentatio...

In Drosophila, trunk visceral mesoderm, a derivative of dorsal mesoderm, gives rise to circular visceral muscles. It has been demonstrated that the trunk visceral mesoderm parasegment is subdivided into at least two domains by connectin expression, which is regulated by Hedgehog and Wingless emanating from the ectoderm. We now extend these findings by examining a greater number of visceral meso...

Online data request and respond to a user query with result records are programmed in HTML files. Extracting information from the unstructured bases has matured into a significant technical challenge whereas generally, data extraction had to deal with changes in physical hardware plans, the majority of current data mining deals with extracting data from the unstructured data sources, and from d...

AIMS To examine the colour vision of juvenile patients suffering from diabetes mellitus without retinopathy in relation to metabolic and ophthalmic state. METHODS Metameric matches, both Rayleigh (red/green) and Moreland (blue/green) were used to test the colour vision yearly of 10 juvenile patients. The patients were monitored over 4 years, and during the final year, their blood glucose leve...

BACKGROUND AND PURPOSE SAMS is a rare form of SCAVM. We discuss the clinical presentation, endovascular management, and outcome of this disease in our series. MATERIALS AND METHODS Retrospective review was performed in patients with SCAVM and SAMS who underwent angiography with intent to treat at our institution from 1980 to 2010. RESULTS One hundred forty-eight SCAVMs were identified, and ...

The metameric organization of the Drosophila embryo is generated in the first 5 h after fertilization. An initially rather simple pattern provides the foundation for subsequent development and diversification of the segmented part of the body. Many of the genes that control the formation of this pattern have been identified and at least twenty have been cloned. By combining the techniques of ge...

Standard color-matching functions are de