Monte Carlo Study of Dispersive Transport in Glassy Electrolytes

AbstractA lattice-gas model is presented, where ions are diffusing in an energy landscape due to immobile, randomly placed counterions. All Coulombic interactions are taken into account.By Monte Carlo simulations we obtain the ac-conductivity, which shows strong dispersion in the form of power-laws. In a separate study we investigate a restricted model, where long-range diffusion is suppressed. These calculations suggest that the response at high frequencies can be interpreted in terms of highly correlated, local motions of dipolar character. Conductivity exponents n1 near unity or even exceeding unity arefound in that regime. We discuss the relationship of these results to experiments on ionic transport in alkali-doped network glasses.

Download Full-text

The Decay of Disease Association with Declining Linkage Disequilibrium: A Fine Mapping Theorem

10.1101/052381 ◽

2016 ◽

Cited By ~ 1

Author(s):

Mehdi Maadooliat ◽

Naveen K. Bansal ◽

Jiblal Upadhya ◽

Manzur R. Farazi ◽

Zhan Ye ◽

...

Keyword(s):

Monte Carlo ◽

Linkage Disequilibrium ◽

Fine Mapping ◽

Disease Model ◽

Disease Association ◽

Simple Relationship ◽

Locus System ◽

Using Data ◽

Relationship Of ◽

The Relationship

AbstractSeveral important and fundamental aspects of disease genetics models have yet to be described. One such property is the relationship of disease association statistics at a marker site closely linked to a disease causing site. A complete description of this two-locus system is of particular importance to experimental efforts to fine map association signals for complex diseases. Here, we present a simple relationship between disease association statistics and the decline of linkage disequilibrium from a causal site. A complete derivation of this relationship from a general disease model is shown for very large sample sizes. Quite interestingly, this relationship holds across all modes of inheritance. Extensive Monte Carlo simulations using a disease genetics model applied to chromosomes subjected to a standard model of recombination are employed to better understand the variation around this fine mapping theorem due to sampling effects. We also use this relationship to provide a framework for estimating properties of a non-interrogated causal site using data at closely linked markers. We anticipate that understanding the patterns of disease association decay with declining linkage disequilibrium from a causal site will enable more powerful fine mapping methods.

Download Full-text

Relationship of Manifest Aggressiveness to Aggressive Word Associations

Psychological Reports ◽

10.2466/pr0.1969.25.3.711 ◽

1969 ◽

Vol 25 (3) ◽

pp. 711-714 ◽

Cited By ~ 11

Author(s):

Russell G. Geen ◽

Robert George

Keyword(s):

Verbal Behavior ◽

Social Desirability ◽

Habit Strength ◽

Self Report ◽

Social Desirability Scale ◽

Word Associations ◽

Highly Correlated ◽

Cue Words ◽

Relationship Of ◽

The Relationship

A self-report inventory made up of items from the Buss-Durkee manifest aggressiveness scales, the Marlowe-Crowne Social Desirability Scale, and the Masculinity-Femininity scale of the Guilford-Zimmerman Temperament Survey was administered to 72 men along with a test of verbal associations to aggressive and neutral cue words. The number of aggressive associations made to aggressive cue words was highly correlated with over-all manifest aggressiveness and with two of the aggressiveness subscales. The results were discussed in terms of the relationship of aggressiveness habit strength to verbal behavior.

Download Full-text

Comparison of Two Sociometric Devices for Measuring Personality Integration

Psychological Reports ◽

10.2466/pr0.1971.29.3f.1035 ◽

1971 ◽

Vol 29 (3_suppl) ◽

pp. 1035-1039

Author(s):

Logan Wright

Keyword(s):

Locus Of Control ◽

The Other ◽

Self Concept ◽

College Age ◽

Functional Measure ◽

Personality Integration ◽

Validity Measures ◽

Highly Correlated ◽

Relationship Of ◽

The Relationship

A comparison was made of two sociometric measures of personality integration. Contrary to prediction, the more brief, 6-item PIRT scale was significantly more reliable ( r11 = .84) than the lengthier 30-item ESD scale ( r11 = .74). Also contrary to prediction, neither test was more highly correlated than the other (and therefore more valid) with any of 8 construct-validity measures. It was concluded that the PIRT was the more functional measure and therefore recommended for use in future personality integration research. Earlier results concerning the relationship of personality integration to self-concept and environmental contact, as well as locus of control and locus of evaluation in college-age females, were replicated.

Download Full-text

Continuous-space Monte Carlo study of a generalized lattice-gas model

Physical Review B ◽

10.1103/physrevb.41.2321 ◽

1990 ◽

Vol 41 (4) ◽

pp. 2321-2325 ◽

Cited By ~ 3

Author(s):

J. A. Nieminen ◽

K. Kaski

Keyword(s):

Monte Carlo ◽

Lattice Gas ◽

Monte Carlo Study ◽

Lattice Gas Model ◽

Continuous Space

Download Full-text

A Possible Relationship Between Toxicity and Carcinogenicity

Journal of the American College of Toxicology ◽

10.3109/10915818609141018 ◽

1986 ◽

Vol 5 (2) ◽

pp. 137-151 ◽

Cited By ~ 13

Author(s):

L. Zeise ◽

E. A.C. Crouch ◽

R. Wilson

Keyword(s):

Acute Toxicity ◽

National Cancer Institute ◽

Chronic Toxicity ◽

Positive Finding ◽

National Toxicology Program ◽

Technical Report Series ◽

Technical Report ◽

Highly Correlated ◽

Relationship Of ◽

The Relationship

Carcinogenic response is compared to noncarcinogenic toxicity in that group of chemicals tested by the National Cancer Institute (NCI) and National Toxicology Program (NTP) between 1976 and 1982 and reported in the Carcinogenesis Technical Report Series. A positive finding of carcinogenicity in the bioassay is correlated with the degree of noncarcinogenic chronic toxicity of the dose applied. Comparisons of acute toxicity (LD50) with carcinogenic potency show that they are correlated, but the correlation may in part be an artifact, since doses used in the NCI/NTP carcinogenesis bioassays are toxic and because reliable measures of potency can only be derived for positive carcinogenic responses. The high correlations for certain classes of chemicals and the relationship of chronic toxicity to positive carcinogenic finding suggest that these relationships are more than spurious. Since toxicities in different species are highly correlated, these findings imply that carcinogenicities in different species are also correlated.

Download Full-text