We investigate the promise of the Ly-α forest for high precision cosmology in the era of the Sloan Digital Sky Survey using low order N-point statistics. We show that with the existing data one can determine the amplitude, slope and curvature of the slope of the matter power spectrum with a few percent precision. Higher order statistics such as the bispectrum provide independent information tha...

Poor children in the United States start school at a disadvantage in terms of their early skills, behaviors, and health. Fewer than half (48 percent) of poor children are ready for school at age five, compared to 75 percent of children from families with moderate and high income, a 27 percentage point gap. This paper examines the reasons why poor children are less ready for school and evaluates...

Regulations that govern oversight of seclusion and/or restraint episodes (SREs) in the United States are relatively uniform and may assume that such events are normally distributed within the population generating them. This study illustrates that the distribution of patients who required one or more SREs within one state psychiatric hospital setting is heavy-tailed-that is, a small group of pa...

The cluster xing algorithms are described for the DELPHI microvertex detector. For the few percent of aaected clusters a considerable improvement in precision and in the description of their resolution function has been obtained.

Introduction It is an undisputed fact that the abolition of primary school fees has led to vast enrollment gains in several countries. After fees were abolished in Malawi in 1994 and in Uganda in 1997, enrollment in both countries grew by 68 percent (Avenstrup, Liang & Nellemann, 2004). Lesotho’s graduated abolition of fees, beginning in 2000, led to a Grade 1 enrollment increase of 75 percent,...

while weeds in sugar beet farming reduce crop yield and quality, they also lead to higher labor and material losses. in recent years, in order to eliminate or reduce the damage caused by weeds in sugar beet farming, weed control has gained importance. to this end, various studies have been conducted on robotic weed control by detecting weeds using image processing algorithms and hoeing or spray...

BACKGROUND The aim of this study was to determine the relationship between body position, pulmonary function (PF) and bronchial blood flow (Q(aw)) in a group of heart failure (HF) and control subjects. METHODS Thirty-six subjects were studied: 24 stable, ambulatory HF patients (HF: LVEF=27±6%, age=65±9 yr) and 12 age- and sex-matched controls (CTRL: LVEF=60±7%, age=62±8 yr). Measures of Q˙(aw...

This study was designed to quantitatively assess the impact of deficiencies in completeness and precision of hospital case cost data on cost weight compression. For the nursing per diem model versus the nursing workload model the average compression was 19.6 percent (for the 25.9 percent of cases that changed cost weight by at least 5 percent). We concluded that the compression of case mix cost...

This paper proposes an event-based hierarchical knowledge structure for Chinese news display. We apply Hierarchical Topic Detection and Tracking technique to group news reports into clusters. Considering the extensibility of events, the knowledge structure is designed with robustness to merge similar reports and reorganize the structure automatically. This brings the merit of tracking associate...