877 research outputs found
An Econometric Model of High School Graduation Rates in Oregon
This study aims to analyze potential factors causing low high school graduation rates in the state of Oregon. We developed an econometric model measuring six independent variables: violent crime rates; income per family, the percentage of the population that is Hispanic, the percentage of family households with only one parent, alcohol use in adults, and teen pregnancy. Our dependent variable was measured as the percentage of the population between 18 and 24 without a high school diploma. From our results we found two of our variables to be economically significant: family structure and alcohol. However, the coefficient for alcohol suggested that higher rates of binge drinking in adults lead to higher graduation rates, which contradicts expectations. This outcome is addressed within the paper. Overall, this study suggests that family structure has the largest and clearest impact on graduation rates in Oregon, out of the variables included in our model
Poverty, Opportunity, and Well-Being in the United States
Economic opportunity varies dramatically across the United States. In this study the Opportunity to Flourish Index (OFI) is created to determine the level of opportunity United States cities afford those at the bottom of the income distribution. Indicators within the index measure disposable income, access to financial services, diet, educational attainment, unemployment, physical well-being, and family structure. The OFI’s relationship with standard measures of economic growth and economic mobility is also evaluated. The OFI is not correlated with measures of income and population growth, suggesting, that in the short-run growth and opportunity are not necessarily complementary. The OFI is strongly correlated with intergenerational economic mobility. Individuals that live in cities which have higher levels of opportunity are more likely to have children that move up the income distribution. The OFI provides stakeholders in poverty alleviation a means to evaluate and promote equality of opportunity in United States cities
Abnormal returns on CEFs in pre- and post-credit-crunch periods
Compared to previous research, present work extends existing literature by considering if market performance, in Athens Stock Exchange, alternates the mean-reverting properties of Closed-end Funds’ discount and as a result affects potential realization of abnormal returns. Employing cointegration analysis, reported results indicate that, examining an equally weighted portfolio of funds, when market performance characterized as moderate, there is evidence suggesting market inefficiency while; during the recent turmoil period due to the credit crisis evidences do not indicate potential realization of abnormal returns. However, individual data examination gives mixed results.peer-reviewe
Safe Robotic Grasping: Minimum Impact-Force Grasp Selection
This paper addresses the problem of selecting from a choice of possible
grasps, so that impact forces will be minimised if a collision occurs while the
robot is moving the grasped object along a post-grasp trajectory. Such
considerations are important for safety in human-robot interaction, where even
a certified "human-safe" (e.g. compliant) arm may become hazardous once it
grasps and begins moving an object, which may have significant mass, sharp
edges or other dangers. Additionally, minimising collision forces is critical
to preserving the longevity of robots which operate in uncertain and hazardous
environments, e.g. robots deployed for nuclear decommissioning, where removing
a damaged robot from a contaminated zone for repairs may be extremely difficult
and costly. Also, unwanted collisions between a robot and critical
infrastructure (e.g. pipework) in such high-consequence environments can be
disastrous. In this paper, we investigate how the safety of the post-grasp
motion can be considered during the pre-grasp approach phase, so that the
selected grasp is optimal in terms applying minimum impact forces if a
collision occurs during a desired post-grasp manipulation. We build on the
methods of augmented robot-object dynamics models and "effective mass" and
propose a method for combining these concepts with modern grasp and trajectory
planners, to enable the robot to achieve a grasp which maximises the safety of
the post-grasp trajectory, by minimising potential collision forces. We
demonstrate the effectiveness of our approach through several experiments with
both simulated and real robots.Comment: To be appeared in IEEE/RAS IROS 201
The law of marriage and divorce in the church of England and the church of Greece since 1850 with its theological implications
relevance for understanding the practice of the Orthodox Church on marriage. Appendix II deals with the liturgical structure of the Orthodox rite of marriage and provides an English version of the actual liturgical Order for first and second marriages, as well as the Service for re-establishing dissolved marriages. Appendix III provides the basic canons governing the present law of marriage and divorce in the Church of England, and the Form of Solemnization of Matrimony according to the 1662 Book of Common Prayer. Appendix IV includes an English-Greek and a Greek-English glossary of some terms used in connection with the law of marriage and divorce and selected English and Greek Bibliographies
Προστασία επαφών ηλεκτρονόμου με varistor
Εθνικό Μετσόβιο Πολυτεχνείο--Μεταπτυχιακή Εργασία. Διεπιστημονικό-Διατμηματικό Πρόγραμμα Μεταπτυχιακών Σπουδών (Δ.Π.Μ.Σ.) “Παραγωγή και Διαχείρηση Ενέργειας
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