Double Stars (List III) in the Astrographic Zones +32 and +33

The Ofpe/wn9 Stars in M 33

We present HST/STIS Ultraviolet spectra of the six known Ofpe/WN9 stars (“slash stars”) in M 33. These stars were selected for showing the characteristics of the Ofpe/WN9 class from previous optical ground-based spectroscopy. The UV spectra are rich in wind lines, whose strength and terminal velocity vary greatly among our target sample. We analyse the STIS spectra with non-LTE, line blanketed,...

LIST OF FIGURES iii LIST

Mixing zones in magnetized differentially rotating stars

We study the secular instability of magnetized differentially rotating radiative zones taking account of viscosity and magnetic and thermal diffusivities. The considered instability generalizes the well-known Goldreich-Schubert-Fricke instability for the case of a sufficiently strong nagnetic field. In magnetized stars, instability can lead to a formation of non-spherical unstable zones where w...

II-32 – II-33 II-32. Multimap formation in the Visual Cortex

Cells in V4 and IT respond selectively to a wide variety of moderately complex object features [1], [2], perhaps numbering in the hundreds or thousands or more. Given that object recognition is location-invariant, it follows that, (1) every location in the visual field is analyzed in parallel by a large number of different feature types, which implies that (2) every feature type forms its own r...

the relationship between learners critical thinking ability and their performance in the reading sections of the tofel and ielts test

the study reflected in this thesis aims at finding out relationships between critical thinking (ct), and the reading sections of tofel and ielts tests. the study tries to find any relationships between the ct ability of students and their performance on reading tests of tofel and academic ielts. however, no research has ever been conducted to investigate the relationship between ct and the read...