A knowledge-based system design/information tool for aircraft flight control systems

Research aircraft have become increasingly dependent on advanced control systems to accomplish program goals. These aircraft are integrating multiple disciplines to improve performance and satisfy research objectives. This integration is being accomplished through electronic control systems. Because of the number of systems involved and the variety of engineering disciplines, systems design methods and information management have become essential to program success. The primary objective of the system design/information tool for aircraft flight control system is to help transfer flight control system design knowledge to the flight test community. By providing all of the design information and covering multiple disciplines in a structured, graphical manner, flight control systems can more easily be understood by the test engineers. This will provide the engineers with the information needed to thoroughly ground test the system and thereby reduce the likelihood of serious design errors surfacing in flight. The secondary objective is to apply structured design techniques to all of the design domains. By using the techniques in the top level system design down through the detailed hardware and software designs, it is hoped that fewer design anomalies will result. The flight test experiences of three highly complex, integrated aircraft programs are reviewed: the X-29 forward-swept wing, the advanced fighter technology integration (AFTI) F-16, and the highly maneuverable aircraft technology (HiMAT) program. Significant operating anomalies and the design errors which cause them, are examined to help identify what functions a system design/information tool should provide to assist designers in avoiding errors

“Making Bail”: Limiting the Use of Bail Schedules and Defining the Elusive Meaning of “Excessive Bail”

Every day in the United States, thousands of people are waiting in jail postarrest prior to any trial or conviction. Once arrested, these individuals frequently face harsh conditions while they are held for their first appearance to be assigned bail. Thousands of individuals wait more than forty-eight hours to first appear in front of a judicial officer who determines their bail conditions. Innocent people––people who have committed no offense except that of being underprivileged––are pressured into accepting plea bargains because they cannot pay bail. Thousands remain in jail unwilling to accept plea bargains or admit guilt but are detained nevertheless because they are unable to afford their excessive bail amounts. These people are often the country’s most vulnerable, most poor, and most undereducated––and often minorities. These individuals are often arrested for crimes of vice, such as being intoxicated in public, or for petty crimes, such as driving with a suspended license. Bail is assigned through algebraic expressions that are hard to understand and in amounts even harder to pay. In an attempt at judicial efficiency and standardization, courts have overly relied on bail schedules while making those assignments. This frequently arbitrary reliance on bail schedules has resulted in a failure to make individualized bail determinations and has caused a rise in pretrial detention. Overreliance on these schedules coupled with a lack of guiding precedent from the Supreme Court has resulted in an excessive bail epidemic. Arbitrary bail procedures in the United States are now so perverse that they have vitiated due process and a presumption of innocence and have defeated the purpose of having an excessive bail clause in the U.S. Constitution. The Supreme Court should take clear action to restore this fundamental right and help end the United States’ excessive bail epidemic

Alias Campbellism : Review of Blood Before Water and Christ Before the Church by J.H. Grime

https://digitalcommons.acu.edu/crs_books/1208/thumbnail.jp

Visual Acuity does not Moderate Effect Sizes of Higher-Level Cognitive Tasks.

Background/study contextDeclining visual capacities in older adults have been posited as a driving force behind adult age differences in higher-order cognitive functions (e.g., the "common cause" hypothesis of Lindenberger & Baltes, 1994, Psychology and Aging, 9, 339-355). McGowan, Patterson, and Jordan (2013, Experimental Aging Research, 39, 70-79) also found that a surprisingly large number of published cognitive aging studies failed to include adequate measures of visual acuity. However, a recent meta-analysis of three studies (La Fleur and Salthouse, 2014, Psychonomic Bulletin & Review, 21, 1202-1208) failed to find evidence that visual acuity moderated or mediated age differences in higher-level cognitive processes. In order to provide a more extensive test of whether visual acuity moderates age differences in higher-level cognitive processes, we conducted a more extensive meta-analysis of topic.MethodsUsing results from 456 studies, we calculated effect sizes for the main effect of age across four cognitive domains (attention, executive function, memory, and perception/language) separately for five levels of visual acuity criteria (no criteria, undisclosed criteria, self-reported acuity, 20/80-20/31, and 20/30 or better).ResultsAs expected, age had a significant effect on each cognitive domain. However, these age effects did not further differ as a function of visual acuity criteria.ConclusionThe current meta-analytic, cross-sectional results suggest that visual acuity is not significantly related to age group differences in higher-level cognitive performance-thereby replicating La Fleur and Salthouse (2014). Further efforts are needed to determine whether other measures of visual functioning (e.g., contrast sensitivity, luminance) affect age differences in cognitive functioning

Estimating Consumers' Willingness-To-Pay for Country-Of-Origin Labels in Fresh Apples and Tomatoes: A Double-Hurdle Probit Analysis of American Data Using Factor Scores

Data are collected from primary shoppers in Gainesville Florida, Atlanta Georgia and Lansing Michigan using a Vickrey (fifth-priced sealed bid) experimental auction and a survey questionnaire to provide a sample of 311 observations useable for analysis. The average willingness to pay (WTP) for country of origin labeling (COOL) "Grown in the U.S." in apples and tomatoes are calculated then tested for equivalence to assess if WTP is produce specific. A double-hurdle probit model is then estimated to ascertain the prominent determinants of WTP for COOL. Independent variables include demographics, food safety and factor scores derived from a factor analysis of food quality and food preference variables. Results show that on average consumers are willing to pay $0.49 and$0.48 for COOL in apples and tomatoes respectively with 79% of the consumers willing to pay more than $0.00 for apples labeled "Grown in the U.S." and 72% in the case of tomatoes. Premiums are found to be statistically equivalent suggesting that WTP for COOL is not produce specific. The double hurdle probit estimation finds most independent variables insignificant with the exception of the food quality factor scores and consumer trust levels for information they receive from U.S. government agencies. Location, age and income also turn out to be significant factors in the case of the truncated part of the estimation as do food quality and food safety concerns.Consumer/Household Economics,