scholarly journals Contrast preservation in Polish Palatalization

2016 ◽  
Vol 1 (1) ◽  
pp. 21 ◽  
Author(s):  
Anna Łubowicz
Keyword(s):  
Contrast Preservation

Tone Circles and Contrast Preservation

2006 ◽  
Vol 37 (1) ◽  
pp. 131-141 ◽  
Author(s):  
Michael Barrie
Keyword(s):  
Contrast Preservation

Inelastic Scattering and Electron Spectroscopy

1977 ◽  
Vol 35 ◽  
pp. 692-695
Author(s):  
B. Jouffrey
Keyword(s):  
Electron Microscopy ◽  
Inelastic Scattering ◽  
Free Electron ◽  
Electron Spectroscopy ◽  
Energy Losses ◽  
Scattering Angle ◽  
Crystalline Materials ◽  
Inelastic Event ◽  
Contrast Preservation ◽  
Electron Excitations

The reasons for studying energy losses can be quite different. The motivations are often highly diversified even if searchers are electron microscopists For instance, the problem of useful penetration involves studying the question of chromatic blurring even if in many cases this effect is not sufficient for explaining the limitations in penetration. The formation of damage (direct knock-on and ionization) is interesting in many ways. In electron microscopy an important point is also the contrast preservation in an inelastic event. This point is related to the useful penetratior (principally in crystalline materials). If that is rather well understood in the case of potentials which are not localized (1) (plasmons and single quasi free electron excitations), it is not so clear in the case of localized interactions as electron phonon ones (2,3,4) or inner shell excitations even if the scattering angle is quite small. However the understanding of this contrast preservation is fundamental.

scholarly journals Environmental shielding is contrast preservation

Phonology ◽  
2018 ◽  
Vol 35 (1) ◽  
pp. 39-78 ◽  
Author(s):  
Juliet Stanton
Keyword(s):  
South American ◽  
Essential Component ◽  
Nasal Vowels ◽  
Growing Body ◽  
Explicit Reference ◽  
Contrast Preservation ◽  
Successful Analysis

The term ‘environmental shielding’ has been used to refer to a class of processes in which the phonetic realisation of a nasal stop depends on its vocalic context. In Chiriguano, for example, nasal consonants are realised as such before nasal vowels (/mã/ → [mã]), but acquire an oral release before oral vowels (/ma/ → [mba]). Herbert (1986) claims that shielding protects a contrast between oral and nasal vowels: if Chiriguano /ma/ were realised as [ma], [a] would likely carry some degree of nasal coarticulation, and be less distinct from nasal /ã/. This article provides new arguments for Herbert's position, drawn from a large typological study of South American languages. I argue that environmental shielding is contrast preservation, and that any successful analysis of shielding must make explicit reference to contrast. These results contribute to a growing body of evidence that constraints on contrast are an essential component of phonological theory.

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