Short-term segment

PCA of the Interbank yield curve. Because they do not apply to the same variables, it should be expected that results obtained with the Interbank yield curve be different from results obtained with Treasury yield curves. This is confirmed by the numbers in Exhibit 24.1. The first factor only accounts for 47.54% of the interest rate changes, while the second factor explains 25.63%. The inferior percentage of explanation by the first factor can be related to the fact that eight out of the 17 variables we use relate to the short-term segment of the curve. The three first factors account for 84.08% of the yield curve deformations while the first five factors account for 93.34%, which means that residuals are not negligible. 

The second factor explains most of the short-term segment. 

The third factor seems to have a major impact first on the short-term segment and then on the long-term segment when we eliminate the short-term and long-term segments, its percentage of variance explained decreases dramatically. 

This term describes the phenomena of stereoisomerism observable in short chain segments. Microtacticity considerations can be applied to stereoregular polymers, to sequences of partially regular polymers, and to highly disordered polymers, both from the qualitative and quantitative points of view. This approach is the most appropriate and complete for the structural study of real polymers. 

IPEC-Europe (intended clinical route)b ADME Acute toxicity (intended route) and skin sensitization. Ames, chromosome damage and micronucleus. Four weeks toxicity (2 species by intended route) Short-term use studies. Three-month toxicity (most appropriate species). Teratology (rat and rabbit). Genotoxicity assays Short-/midterm studies. Segment I reproduction. Six to nine months toxicity (rodent and nonrodent), segment III reproduction, and carcinogenicity (conditional)... 

Single-Generation Studies. Single-generation studies are short-term studies conducted in three segments ... 

Subsequently, several authors have tested SRT, either alone or as one component in multifactorial interventions. The majority of the studies evaluating SRT alone have focused on elderly populations. As sleep becomes fragmented, daytime alertness is reduced, and insomnia vulnerability increases with aging. Older adults often spend more time in bed to cope with these changes. Although this response is adaptive in the short term, it may also perpetuate/exacerbate sleep difficulties. The use of SRT is, therefore, very relevant for this segment of the pop-... 

Figure 3. Distributions of short-term kinetic energies, expressed as effective temperatures, for Ar3, at total energies corresponding to (a) 28.44 K and (b) 30.54 K. The low kinetic energies correspond to trajectory segments in the saddle region the high kinetic energy parts of the distribution are associated with motion above the deep well of the equilibrium geometry. [Reprinted with permission from T. L. Beck, D. M. Leitner, and R. S. Berry, J. Chem. Phys. 89, 1681 (1988). Copyright 1988, American Institute of Physics.]...

Humans deficient in vitamin A lose their ability for dark adaptation. Rod vision is affected more than cone vision. Upon depletion of retinol from liver and blood, the concentrations of retinol and rhodopsin in the retina fall. Unless the deficiency is overcome, opsin, lacking the stabilizing effect of retinal, decays and anatomical deterioration of the rods outer segments occurs. In rats maintained on a vitamin A-deficient Set, irreversible ultrastructural changes leading to blindness then supervene, a process that takes -10 months. Following short-term deprivation of vitamin A, dark adaptation can be restored to normal by the addition of retinol to the Set, but this restoration takes several weeks. The reason for this delay is unknown. 

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