White Paper
نویسندگان
چکیده
Overview Over the past several years we have been haunted by highly publicized examples of youth violence in the U.S. Almost every week we hear new stories that make us gasp at the severity of the act, the age of the perpetrator, or the random and purposeless nature of the crime. A 14-year-old Miami student is charged with murder for stabbing and killing another student with an 8-inch knife. A 44-year old man is beaten in downtown Seattle by eight teenage boys, the youngest being 11 years old. Near Tampa, two boys viciously attack llamas being raised as pets with golf clubs and a meat cleaver, killing one llama and severely injuring another. Childhoods are routinely torn apart by gang violence—a 4-year-old waiting for ice cream is caught in neighborhood crossfire. The list goes on. The most dramatic stories involve youth perpetration of multiple shootings in schools, churches, and shopping malls. The less dramatic stories involve a regular dose of bullying, fighting, harassment, extortion, and aggression that have come to define youth culture in many schools and communities across the nation and worldwide. These harmful actions often go unrecognized and unpunished by the criminal justice system. Still, although highly publicized events may have sensitized us to the urgency of the problem, youth violence is not a new phenomenon but has been a cause for concern for several decades. This concern has led to a wide array of prevention and intervention programs—parent training and education, family counseling, mentoring, tutoring, recreation, cognitive-behavioral interventions, social skills training, gang prevention efforts, community policing and more—provided in schools, after school, in homes, and in communities. With so much energy invested in the prevention of youth
منابع مشابه
اندازه گیری دمای اشتعال مخلوط های دوجزئی و مقایسه نتایج حاصل بامقادیر پیش بینی شده از مدلهای Liaw و White
متن کامل
The Dependency of Colorimetric Characteristics of Black Fabrics to the Whiteness Attribute of Substrate
In this paper the effect of whiteness attribute of white substrates on blackness property of black coated fabrics is investigated. To this aim, four cotton fabrics with different whiteness and tint attributes are used as white substrates. To prepare a set of black samples, various concentrations of four color pigments, i.e., red, green, blue and yellow, were mixed with the black one and applied...
متن کاملThe Effects of Iranian Gum Tragacanth on the Foaming Properties of Egg White Proteins in Comparison with Guar and Xanthan Gums
ABSTRACT: This paper presents the results of studies concerned with the preparation of fresh food foams based on egg white and various hydrocolloids including Iranian gum tragacanth, guar and xanthan gums at different concentrations (0.002-0.040% w/w). The basic physical parameters of the obtained foams such as overrun, stability and morphology of gas bubbles were measured. Viscosity measuremen...
متن کاملA High Performance Feedback Active Noise Control System
In many active noise control (ANC) applications, an online secondary path modelling method that uses a white noise as a training signal is required. This paper proposes a new feedback ANC system. Here we modified both the FxLMS and the VSS-LMS algorithms to raised noise attenuation and modelling accuracy for the overall system. The proposed algorithm stops injection of the white noise at the op...
متن کاملA High Performance Feedback Active Noise Control System
In many active noise control (ANC) applications, an online secondary path modelling method that uses a white noise as a training signal is required. This paper proposes a new feedback ANC system. Here we modified both the FxLMS and the VSS-LMS algorithms to raised noise attenuation and modelling accuracy for the overall system. The proposed algorithm stops injection of the white noise at the op...
متن کاملA Robust Feedforward Active Noise Control System with a Variable Step-Size FxLMS Algorithm: Designing a New Online Secondary Path Modelling Method
Several approaches have been introduced in literature for active noise control (ANC)systems. Since Filtered-x-Least Mean Square (FxLMS) algorithm appears to be the best choice as acontroller filter. Researchers tend to improve performance of ANC systems by enhancing andmodifying this algorithm. This paper proposes a new version of FxLMS algorithm. In many ANCapplications an online secondary pat...
متن کامل