Stability temporal

Photosynthetic reaction centers from Rhodobacter sphaeroides and bacteri-orhodopsin (BR) from purple membrane (PM) have been used for their unique optoelectronic properties and for their capability of providing light-induced proton and electron pumping. Once assembled they display extremely high thermal and temporal stability... 

Tatara CP, Mulvey M, Newman MC. 2002. Genetic and demographic responses of mercury-exposed mosquitofish Gambusia holbmoki) populations temporal stability and reproductive components of fitness. Environ Toxicol Chem 21 2191-2197. 

Chapman et al. [131] reported the synthesis of poly(ethylene oxide) (PEO) supported dendritic f-BOC-poly(a, c-L-lysines). These dendritic polymers termed as hydramphiphiles formed foams possessing good temporal stability in aqueous solution. Scrimin et al. [132] synthesized a three-directional polypeptide having uses in membrane permeability modulation. Decapeptide fragments were linked to TREN [tris(2-aminoethyl)amine] core. 

Heagler, M.G., M.C. Newman, M. Mulvey, and P.M. Dixon. 1993. Allozyme genotype in mosquitofish, Gambusia holbrooki, during mercury exposure temporal stability, concentration effects and field verification. Environ. Toxicol. Chem. 12 385-395. 

The first fluorescence correlation spectroscopy experiments were carried out several decades ago,62 64 but the general use of the technique was made possible with the introduction of lasers with high beam quality and long-term temporal stability, low noise detectors, and high-quality microscope objectives with high numeric apertures.58,63 The most common set-up is using a confocal inverted epi-fluorescence... 

Dearman, R.J. et al., Temporal stability of local lymph node assay responses to hexyl cinnamic aldehyde, J. Appl. Toxicol., 18, 281, 1998. 

C.R. Yonzon, C.L. Haynes, X. Zhang, J.T. Walsh Jr. and R.P. Van Duyne, A glucose biosensor based on surface-enhanced Raman scattering improved partition layer, temporal stability, reversibility, and resistance to serum protein interference, Anal. Chem., 76(1) (2004) 78-85. 

For time-series data, the contiguous block method can provide a good assessment of the temporal stability of the model, whereas the Venetian blinds method can better assess nontemporal errors. For batch data, one can either specify custom subsets where each subset is assigned to a single batch (i.e., leave one batch out cross-validation), or use Venetian blinds or contiguous blocks to assess within-batch and between-batch prediction errors, respectively. For blocked data that contains replicates, one must be very careful with the Venetian blinds and contiguous block methods to select parameters such that the rephcate sample trap and the external subset traps, respectively, are avoided. 

There have been mixed reports on the success of MST to trace sources of fecal contamination (Harwood et ah, 2003 Myoda et ah, 2003 Stoeckel et ah, 2004). In the case of methods based on . coli, the main limitations were with respect to the reliability of the database. Specifically, E. coli strains are not entirely host specific, their populations are highly diverse with low temporal stability and poor geographical structure (Barnes and Gordon, 2004 Davis and Gordon, 2002 Dixit et ah, 2004 Gordon, 2001 Gordon et ah, 2002). 

Murad, E. Schwertmann, U. (1984) The influence of crystallinity on the Mdssbauer spectrum of lepidocrocite. Min. Mag. 48 507-511 Murad, E. Schwertmann, U. (1986) Influence of Al substitution and crystal size on the room-temperature Mdssbauer spectrum of hematite. Clays Clay Min. 34 1-6 Murad, E. Schwertmann, U. (1988) Iron oxide mineralogy of some deep-sea ferromanganese crusts. Am. Min. 73 1395-1400 Murad, E. Schwertmann, U. (1993) Temporal stability of a fine-grained magnetite. Clays Clay Min. 41 111-113... 

Pate, B., R. K. M. Jayanty, M. R. Peterson, and G. F. Evans, Temporal Stability of Polar Organic Compounds in Stainless Steel Canisters, J. Air Waste Manage. Assoc., 42, 460-462 (1992). 

J. Berkhouf and B.G. Walter, Temporal stability and individual differences in human EEG. An analysis of variance of spectral values. IEEE Trans. 

SHG Temporal Stabilization by Embedding NLO Chromophores in Totally Cross-Linking Matrices... 

These results illustrate the diversity of synthetic and processing approaches that can be taken in the synthesis of thin-film frequency doubling materials. Specifically, we have demonstrated that it is possible to assemble chromophore-functionalized polymers with greater than one chromophore substitutent per monomer subunit, with d33 values as high as 65 x 10 esu, with Tg values as high as 173°C, with improved temporal stability, and with good transparency characteristics at A 0.633 fim. We have also shown that known chromophore-functionalized polymers can be simultaneously poled and cross-linked... 

Dopant orientation during and following electric field-induced poling can be studied continuously and in real time in order to examine the microenvironment surrounding the dopants in terms of the polymer relaxations and the applied corona field. In the results presented below, the SHG of 4-dimethylamino-4 -nitrostilbene (DANS) dispersed in polystyrene (PS) or poly(methyl methacrylate) (PMMA) matrices has been examined in corona poled films as a function of temperature in order to understand the effect of thermal conditions on the temporal stability of the dopant orientation. 

Figure 1. Effect of temperature on the temporal stability of X film (related to and the angle between the applied field and dopant optical axis) for corona poled PS and PMMA films doped with 4 wt.% DANS. X Vilm(0/x film(t=0) versus time after the field is removed, where t=0 denotes the time that the applied field is removed. The initial temperature is 110°C, and the final temperatures after the field is removed are 11 (PC [PS (0),PMMA ( )], 95°C [PS CD,PMMA ( )] or 60°C [PS (A), PMMA (A)].

The guest crystals are aligned within the polymer matrix, using a thermal gradient technique, a method which produces transparent, non-scattering, flexible, SHG-active composites, with excellent temporal stability. 

Using this novel solution-based method, we have been able to incorporate [C6H5CH2NH3][H2P04], BADP (77), an SHG-active material, into polymeric hosts such as poly(acrylamide) (PAA) and polyethylene oxide) (PEO) to produce transparent, colourless, low scattering SHG-active composites with excellent temporal stability. 

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