Pioneer 10 observation of the solar wind proton temperature heliocentric gradient

Solar wind isotropic proton temperatures as measured out to 12.2 AU heliocentric distance by the Ames plasma analyzer aboard Pioneer 10 are presented as consecutive averages over three Carrington solar rotations and discussed. The weighted least-squares fit of average temperature to heliocentric radial distance, R, yields the power law R sup -.52. These average proton temperatures are not correlated as well with Pioneer 10's heliocentric radial distance (-.85) as are the corresponding average Zurich sunspot numbers R sub z (-.95). Consequently, it is difficult to isolate the spatial gradient in the Pioneer 10 solar wind proton temperatures using that data alone

Thermoset-thermoplastic aromatic polyamide containing N-propargyl groups

The compounds of the class of aromatic polyamides useful as matrix resins in the manufacture of composites or laminate fabrication were developed. The process for preparing this thermoplastic-thermoset polyamide system involves incorporating a latent crosslinking moiety along the backbone of the polyamide to improve the temperature range of fabrication thereof wherein the resin softens at a relatively low temperature (approx. 154 C) and subsequently sets-up or undergoes crosslinking when subjected to higher temperature (approx. 280 C)

Inter-image matching

Interimage matching is the process of determining the geometric transformation required to conform spatially one image to another. In principle, the parameters of that transformation are varied until some measure of some difference between the two images is minimized or some measure of sameness (e.g., cross-correlation) is maximized. The number of such parameters to vary is faily large (six for merely an affine transformation), and it is customary to attempt an a priori transformation reducing the complexity of the residual transformation or subdivide the image into small enough match zones (control points or patches) that a simple transformation (e.g., pure translation) is applicable, yet large enough to facilitate matching. In the latter case, a complex mapping function is fit to the results (e.g., translation offsets) in all the patches. The methods reviewed have all chosen one or both of the above options, ranging from a priori along-line correction for line-dependent effects (the high-frequency correction) to a full sensor-to-geobase transformation with subsequent subdivision into a grid of match points

Decreasing Opportunities for Low-Wage Workers: The Role of the Nondiscrimination Law for Employer-Provided Health Insurance

As of 1978, the favorable tax treatment of fringe benefits, including health insurance, has been regulated via a nondiscrimination clause such that low-wage, full-time workers must be offered health insurance (and other benefits) that are offered to higher-wage workers by the firm. Part-time workers may be excluded from coverage, however, creating incentives for firms to hire some types of workers part time to deny them coverage. We hypothesize that firms will hire fewer workers whose relative costs have increased, that is, low-wage workers. These workers will be less likely to work for firms that offer coverage, and those that do will be more likely to work part time without being eligible for the firm’s health insurance benefits. We use the 1988 and 1993 Employee Benefits Supplements to the Current Population Surveys and an employer premium imputation to examine these hypotheses. Both the descriptive and multivariate analysis are consistent with our hypotheses. We predict the probability of working for a firm that offers health insurance to decrease as premiums increase for both high- and low-wage workers. An increase in the premium is also associated with a decrease in the probability of part-time work, but an even greater decrease in the joint probability of part-time work with eligibility for health insurance.

Methodology development for evaluation of selective-fidelity rotorcraft simulation

This paper addressed the initial step toward the goal of establishing performance and handling qualities acceptance criteria for realtime rotorcraft simulators through a planned research effort to quantify the system capabilities of 'selective fidelity' simulators. Within this framework the simulator is then classified based on the required task. The simulator is evaluated by separating the various subsystems (visual, motion, etc.) and applying corresponding fidelity constants based on the specific task. This methodology not only provides an assessment technique, but also provides a technique to determine the required levels of subsystem fidelity for a specific task

Synthesis of aromatic secondary diamines

A series of N-methyl substituted aromatic polyamides derived from the secondary aromatic diamines, 4,4'-bis(methylamino)diphenylmethane, 3,3'-bis(methylamino) diphenylmethane, 4,4'-bis(methylamino)benzophenone or 3,3'-bis(methylamino)benzophenone and isophthaloyl dichloride, terphthaloyl dichloride or 3,3'diphenylmethane dicarboxylic acid dichloride was prepared by high temperature solution polymerization in s-tetrachloroethane. Compared to analogous unsubstituted and partially N-methylated aromatic polyamides, the full N-methylated polyamides exhibited significantly lower glass transition temperatures, reduced crystallinity, improved thermal stability and good solubility in chlorinated solvents

Patterns and Sources of Anthropogenic Contaminants in the Otter Creek Watershed, Madison County, Kentucky By Elijah D. Wolfe Submitted to Walter S. Borowski Department of Geosciences Eastern Kentucky University Undergraduate Thesis May

Stream systems are often affected by anthropogenic activities that affect water quality and stream ecosystems. Land use typically determines the type and quantity of anthropogenic contaminants entering natural waters. The Otter Creek watershed (170 km2; Madison County, Kentucky) consists predominantly of pasture and rural housing, with some cropland. The basin also receives runoff from the town of Richmond and a sewage treatment plant operates within the watershed. We measured concentrations of nutrients (phosphate, ammonium, nitrate) and fecal microbes to discover levels of anthropogenic contaminants affecting water quality and to identify contaminant sources. We sampled 4 times in the summer field season of 2015 over a variety of conditions. Nutrients were measured colorimetrically using established colorimetric methods. The abundance of Escherichia coli was quantified using IDEXX rapid-assay techniques. Phosphate (0 – 0.5 mg/L) and ammonium ( Both point- and non-point sources exist for contaminants. The sewage treatment plant is a definite point source for nitrate and less so for phosphate and ammonium. Non-point sources include high concentrations of nitrate, phosphate, and fecal microbes occur along Dreaming Creek, likely due to leaky sewage distribution pipes. Spikes in ammonium concentration are associated with cattle pasture, another non-point source. We also tested contaminant levels immediately before and after a rainfall event associated with tropical storm Bill (June 22). Phosphate and ammonium levels decreased, whereas nitrate increased significantly. E. coli counts also increased dramatically, after the rain event

Male Coercive Sexual Behavior as a Function of Male Resource-Potential and Respondent Gender.

The present study examined whether the resource-potential (RP) of a male dater (i.e., potential financial success and status) and/or respondent gender related to attitudes toward coercive sexual behavior by the male. Participants (59 males and 82 females) read a hypothetical dating scenario in which a heterosexual couple went out for dinner and then returned to the female’s apartment to watch a movie. The RP of the male dater was set at high and low. Following the scenario, rating scales posing increasing levels of coercive sexual behavior (a sexual advance, verbal persuasion, and physical coercion) were presented. The participants rated the likelihood and acceptability of each behavior on a 7-point scale. A 2 (respondent gender) x 2 (high or low RP) between-subjects multivariate analysis of variance (MANOVA) was performed on the six dependent variables (DVs): the likelihood of the three coercive behaviors and the acceptability of the three coercive behaviors. The combined DVs were significantly affected for respondent gender and RP but not by their interaction. Univariate analyses of variance (ANOVAs) were performed on each DV. Significant differences were found between males and females on all DVs except the acceptability of a sexual advance. Significant differences were also found between the high RP scenario respondents and the low RP respondents for the likelihood of a sexual advance and the likelihood of verbal persuasion. For exploratory purposes, univariate analyses were performed and an interaction was found between respondent gender and RP for the acceptability of verbal persuasion and the acceptability of physical coercion. While all hypotheses were not fully supported, overall the present study yielded very promising results. First, additional support was given to the coercive sexual behavior literature by the finding that females find coercive sexual behaviors more likely while males find them more acceptable. Secondly, social equity theory was supported by the finding that high RP scenario respondents found the coercive sexual behaviors more likely than the low RP scenario respondents did. Finally, the finding that females were more accepting of coercive sexual behaviors from a male with high RP than from a male with low RP offers support to the mating strategy assertions of sociobiological theory