Experienced Significant Increases (experience + significant_increase)

Distribution by Scientific Domains


Selected Abstracts


S&P 500 Index Additions and Earnings Expectations

THE JOURNAL OF FINANCE, Issue 5 2003
Diane K. Denis
Stock price increases associated with addition to the S&P 500 Index have been interpreted as evidence that demand curves for stocks slope downward. A key premise underlying this interpretation is that Index inclusion provides no new information about companies' future prospects. We examine this premise by analyzing analysts' earnings per share (eps) forecasts around Index inclusion and by comparing postinclusion realized earnings to preinclusion forecasts. Relative to benchmark companies, companies newly added to the Index experience significant increases in eps forecasts and significant improvements in realized earnings. These results indicate that S&P Index inclusion is not an information-free event. [source]


Active Support, Participation and Depression

JOURNAL OF APPLIED RESEARCH IN INTELLECTUAL DISABILITIES, Issue 4 2010
Roger J. Stancliffe
Background, Staff training in Active Support is designed to enable direct support staff to increase the engagement and participation of people with intellectual disabilities in a range of daily activities. Method, Residents (n = 41) and staff of nine group homes participated. The effectiveness of Active Support was evaluated with a pre-test:post-test design, using a number of standardized assessments and other questionnaires, with group home staff as informants. These assessments were conducted before Active Support training and an average of 6.5 months later. Results, Following implementation of Active Support residents experienced significant increases in domestic participation and adaptive behaviour. There were significant decreases in internalized challenging behaviour, overall challenging behaviour and depression. There was no significant pre,post change in other forms of challenging behaviour. Conclusions, Our findings confirm and extend previous Active Support research showing that implementation of Active Support is followed by increased resident participation in activities. The significant improvements in adaptive behaviour, challenging behaviour and depression are of particular interest as the present study is among the first to report such effects. The study's limitations are discussed. [source]


Distribution of saquinavir, methadone, and buprenorphine in maternal brain, placenta, and fetus during two different gestational stages of pregnancy in mice

JOURNAL OF PHARMACEUTICAL SCIENCES, Issue 8 2009
Lisa D. Coles
Abstract Efflux transporters such as P-glycoprotein (P-gp) play a critical role in the maternal-to-fetal and blood-to-brain transfer of many drugs. Using a mouse model, the effects of gestational age on P-gp and MRP expression in the placenta and brain were evaluated. P-gp protein levels in the placenta and brain were greater at mid-gestation (gd 13) than late-gestation (gd 18). Likewise, brain MRP1 levels were greater at mid-gestation, whereas, placental levels were greater at late-gestation. To evaluate these effects on drug disposition, concentrations of [3H]saquinavir, [3H]methadone, [3H]buprenorphine, and the paracellular marker, [14C]mannitol were measured in plasma, brain, placenta, and fetal samples after i.v. administrations to nonpregnant and pregnant mice. Following i.v. administration, [3H]saquinavir placenta-to-plasma and fetal-to-plasma ratios were significantly greater in late-gestation mice versus mid-gestation. Furthermore, late-gestation mice experienced significant increases in the [3H]saquinavir and [3H]methadone brain-to-plasma ratios 60 min after dosing relative to mid-gestation (p,<,0.05). No significant differences were observed in these tissue-to-plasma ratios for buprenorphine or mannitol. Repeated dosing (three doses, once daily) decreased the differential uptake of [3H]saquinavir in brain but potentiated it in the fetus. These results suggest that differential expression of P-gp and possibly MRP1 contributes to the gestational-induced changes in brain and fetal uptake of saquinavir. © 2008 Wiley-Liss, Inc. and the American Pharmacists Association J Pharm Sci 98:2832,2846, 2009 [source]


Increasing Length of Stay Among Adult Visits to U.S. Emergency Departments, 2001,2005

ACADEMIC EMERGENCY MEDICINE, Issue 7 2009
Andrew Herring MD
Abstract Background:, Emergency departments (EDs) are traditionally designed to provide rapid evaluation and stabilization and are neither staffed nor equipped to provide prolonged care. Longer ED length of stay (LOS) may compromise quality of care and contribute to delays in the emergency evaluation of other patients. Objectives:, The objective was to determine whether ED LOS increased between 2001 and 2005 and whether trends varied by patient and hospital factors. Methods:, This was a retrospective analysis of a nationally representative sample of 138,569 adult ED visits from the National Hospital Ambulatory Medical Care Survey (NHAMCS), 2001 to 2005. ED LOS was measured from registration to discharge. Results:, Median ED LOS increased 3.5% per year from 132 minutes in 2001 to 154 minutes in 2005 (p-value for trend < 0.001). There was a larger increase among critically ill patients for whom ED LOS increased 7.0% annually from 185 minutes in 2001 to 254 minutes in 2005 (p-value for trend < 0.01). ED LOS was persistently longer for black/African American, non-Hispanic patients (10.6% longer) and Hispanic patients (13.9% longer) than for non-Hispanic white patients, and these differences did not diminish over time. Among factors potentially associated with increasing ED LOS, a large increase was found (60.1%, p-value for trend < 0.001) in the use of advanced diagnostic imaging (computed tomography [CT], magnetic resonance imaging [MR], and ultrasound [US]) and in the proportion of ED visits at which five or more diagnostic or screening tests were ordered (17.6% increase, p-value for trend = 0.001). The proportion of uninsured patients was stable throughout the study period, and EDs with predominately privately insured patients experienced significant increases in ED LOS (4.0% per year from 2001 to 2005, p-value for trend < 0.01). Conclusions:, Emergency department LOS in the United States is increasing, especially for critically ill patients for whom time-sensitive interventions are most important. The disparity of longer ED LOS for African Americans and Hispanics is not improving. [source]