Fiber optic based system for polarization sensitive spectroscopy of semiconductor quantum structures.

We describe an optical fiber based setup for performing polarization resolved magneto-optical spectroscopy measurements under low temperatures ( approximately 4 K) and high magnetic fields ( approximately 8 T). The measurements are performed in a windowless helium Dewar. Circularly polarized light is produced inside the Dewar by inserting the polarizing elements between the fiber end and the sample.

Intake and utilization of sorghum and maize green fodder in spotted deer under captivity.

Purpose: The feeding value and nutritional adequacy of two cereal fodder, viz. sorghum (Sorghum vulgare) and maize (Zea mays), were evaluated in spotted deer (Axis axis) and compared with that in sheep in two consecutive feeding trials of 35 days each.

Methods: Four spotted deer (2 years of age, 68.

X-ray reflectivity study of semiconductor interfaces.

The results of an X-ray reflectivity study of thick AlAs-AlGaAs and thin Ge-Si-Ge multilayers grown using metal-organic vapour-phase epitaxy and ion-beam sputtering deposition techniques, respectively, are presented. Asymmetry in interfaces is observed in both of these semiconductor multilayers. It is also observed that although the Si-on-Ge interface is sharp, an Si(0.

Primary extradural spinal melanoma.

Primary spinal melanoma is uncommon, with only 36 cases reported in the available literature. These lesions usually occur as diffuse melanomatosis. Solitary lesions are rare.

Prevalence of Muellerius capillaris in free-ranging spotted deer (Cervus axis) in India and its experimental cross-transmission to goats.

A survey to assess the prevalence of parasitic infections among axis deer (Cervus axis) in three National Parks in India revealed infections with the lungworm Muellerius capillaris. Clinical signs were not evident in infected animals. Therefore, it is suggested that C.