Wilder continua and their subfamilies as coanalytic absorbers

Synthesis and Application of Heterocyclic as ultraviolet Absorbers

The lifespan of organic coatings is reduced in outdoor applications by attacks of solar radiation, oxygen and atmospheric pollutants. Degradation of coating and recoating introduce pollutants into the environment. For solvent base coatings like alkyd paints volatile organic compounds (VOC) are main source of pollution. Undesirable mechanical, physical and chemical consequences of the resulting ...

Acute Porphyria Presenting as Epilepsia Partialis Continua

PURPOSE The porphyrias are a defect in the biosynthesis of heme which can be associated with different neurological symptoms during acute attacks such as peripheral neuropathy, mental disturbance and seizures. So far, there have only been a few case reports of status epilepticus, none of which were of epilepsia partialis continua (EPC). We present here two cases of hereditary coproporphyria (HC...

Lyman α absorbers and their Connection with Galaxies

We review the ongoing debate about the relationship between low redshift Lyman α absorbers and luminous galaxies. In particular, we discuss the difficulty of ‘assigning’ a particular absorber to a particular galaxy, and consider methods of circumventing this problem. We also provide a status report on an ongoing project collecting more data to address this issue, and show some results for a clo...

A Survey of Selective Solar Absorbers and Their Limitations

A number of mater ia ls and techniques have been used t o form se lec t ive s o l a r absorber coatings. Each of the coating processes and the coatings formed has i t s own l imi ta t ions which a r e generally paorly defined. The poor s t a t e of knowledge on the l i m i t a t i o n s of the coating processes and the resu l t ing coatings poses a problem f o r the component design and the mat...

Redbuds and Legumes Subfamilies