Who needs engine monitoring?

Operational evaluations of engine monitoring systems (EMS) are discussed. Options for each required EMS phase are reviewed along with the guidance provided for EMS on new systems

A Study of the Impact of Socioeconomic Status on Student Achievement in a Rural East Tennessee School System.

The purpose of this study was to explore the impact of socioeconomic status on academic achievement as measured by the Tennessee Comprehensive Assessment Program Achievement Test and the Tennessee Comprehensive Assessment Program Writing Assessment. The population consisted of 8th grade students enrolled in 4 elementary schools in a rural school system in Tennessee. Data were analyzed for the population of the 2006-2007 academic school year. A 2-way analysis of variance model was used to compare the means among the schools, the means between economically disadvantaged students and those who were not economically disadvantaged, and whether there was a significant school by socioeconomic status interaction. The independent variables were the schools ( School A, B, C, D) and the socioeconomic status of the students (those who qualified for free or reduced price meals and those who did not qualify for free or reduced price meals). The 5 dependent variables in the study were the number of items students answered correctly on the math, language arts, science, and social studies portions of the test and the holistic writing test scores. The quantitative findings revealed the F test for the school by socioeconomic status interaction term was not significant in all 5 research questions. The mean score of economically disadvantaged students was lower than noneconomically disadvantaged students in math, language arts, social studies, and science. Results indicated no difference in the mean writing scores between students who were economically disadvantaged and students who were not. When the main effect of school was significant, the Bonferroni post hoc multiple pairwise comparisons test was used to determine which pair of school means was different. The main effect of school was significant in math, social studies, science, and writing. There were no significant differences in the mean number of language arts items answered correctly among the schools

Quantitative Aspects of the Computation Performed by Visual Cortex in the Cat, With a Note on a Function of Lateral Inhibition

Work reported herein was conducted at the Artificial Intelligence Laboratory, a Massachusetts Institute of Technology research program supported in part by the Advanced Research Projects Agency of the Department of Defense and monitored by the Office of Naval Research under Contract Number N00014-70-A-0362-0005. Working Papers are informal papers intended for internal use.A quantitative summary is given of the computation that is performed by visual cortex in the cat. Part of this computation seems to be achieved using a sample-and-average technique; some quantitative features of this technique are briefly set out.MIT Artificial Intelligence Laborator

Examining Predictors of Implementation Quality in an Emerging International Extension Context

In this article, we explore a component of evidence-based programming—implementation quality—within an emerging international Extension context. Specifically, we examine how the traits, characteristics, and perceptions of 46 program facilitators influenced their support of maintaining implementation quality in a Nicaraguan youth violence and substance abuse prevention program, Dale se REAL. The results indicated that of four potential variables, only facilitator buy-in to the Dale se REAL program was a meaningful predictor of implementation support. The implications of the study findings, relative to evidence-based Extension research in both the United States and an emerging international context, are discussed

Examining Predictors of Implementation Quality in an Emerging International Extension Context

In this article, we explore a component of evidence-based programming—implementation quality—within an emerging international Extension context. Specifically, we examine how the traits, characteristics, and perceptions of 46 program facilitators influenced their support of maintaining implementation quality in a Nicaraguan youth violence and substance abuse prevention program, Dale se REAL. The results indicated that of four potential variables, only facilitator buy-in to the Dale se REAL program was a meaningful predictor of implementation support. The implications of the study findings, relative to evidence-based Extension research in both the United States and an emerging international context, are discussed

Kainic acid-induced eye enlargement in chickens: differential effects on anterior and posterior segments

Intravitreal injections of kainic acid were used to examine the significance of normal retinal activity for eye growth in chickens, this acid being chosen because of its known, selective neurotoxic effects on cells in the chicken retina. A 6 nmole dose of kainic significantly reduces amacrine cell numbers when used in very young chickens, while higher doses of kainic acid also affect bipolar and horizontal cell numbers. The effects of intravitreal injection of kainic acid on eye growth were assessed 4 weeks after treatment. A 200 nmole dose of kainic acid, used with day-old and 14-day-old chickens, had opposing effects on the anterior and posterior segments of the eye; while growth of the anterior segment was inhibited, the posterior segment was enlarged, predominantly in the equatorial direction. A 20 nmole dose of this acid similarly affected growth in 14-day-old chickens, but in day-old chickens, the anterior segment was also enlarged and the overall eye enlargement had an axial bias. Myopia was the most common refractive error associated with both patterns of development. A 2 nmole dose of kainic acid was without effect on eye growth. Parallels are drawn between these eye enlargement phenomena and those described in chickens whose visual environments have been manipulated. Our results indicate that normal retinal activity is fundamental to normal eye growth in chickens, and furthermore, that growth of the anterior and posterior segments of the chicken eye are independently regulated

Humoral autoimmunity after solid organ transplantation: Germinal ideas may not be natural

Non-HLA antibody responses following solid organ transplantation have become increasingly emphasised, with several large clinical series suggesting that such responses contribute to late graft failure. Many of the responses described recognise both recipient and donor moieties of the target antigen and thus represent auto-, rather than allo-immunity. Within this rapidly evolving field, many questions remain unanswered: what triggers the response; how innate and adaptive humoral autoimmunity integrate; and most pressingly, how autoimmunity contributes to graft damage and its relationship to other effector mechanisms of graft rejection. This review summarises recent clinical and experimental studies of humoral autoimmunity in transplant rejection, and considers some of the answers to these questions

Historic 2005 toxic bloom of Alexandrium fundyense in the west Gulf of Maine : 1. In situ observations of coastal hydrography and circulation

Author Posting. © American Geophysical Union, 2008. This article is posted here by permission of American Geophysical Union for personal use, not for redistribution. The definitive version was published in Journal of Geophysical Research 113 (2008): C07039, doi:10.1029/2007JC004601.An extensive Alexandrium fundyense bloom occurred along the coast of the Gulf of Maine in late spring and early summer 2005. To understand the physical aspects of bloom's initiation and development, in situ observations from both a coast-wide ship survey and the coastal observing network were used to characterize coastal circulation and hydrography during that time period. Comparisons between these in situ observations and their respective long-term means revealed anomalous ocean conditions during May 2005: waters were warmer and fresher coast-wide owing to more surface heating and river runoff; coastal currents were at least 2 times stronger than their climatological means. Surface winds were also anomalous in the form of both episodic bursts of northeast winds and a downwelling-favorable mean condition. These factors may have favored more vigorous along-shore transport and nearshore aggregation of toxic A. fundyense cells (a red tide) in 2005.Research support was provided through the Woods Hole Center for Oceans and Human Health, National Science Foundation (NSF) grant OCE-0430723 and National Institute of Environmental Health Science (NIEHS) grant 1-P50-ES012742-01, ECOHAB program through NSF grant OCE-9808173 and NOAA grant NA96OP0099, and GOMTOX program through NOAA NA06NOS4780245