1,955 research outputs found
A Two-Generational Child-Focused Program Enhanced With Employment Services
Presents findings from an evaluation of an early childhood program targeting low-income families that addresses both the parents' educational and employment needs and their children's developmental needs. Examines outcomes by age
Super-orbital re-entry in Australia - laboratory measurement, simulation and flight observation
There are large uncertainties in the aerothermodynamic modelling of super-orbital re-entry which impact the design of spacecraft thermal protection systems (TPS). Aspects of the thermal environment of super-orbital re-entry flows can be simulated in the laboratory using arc- and plasma jet facilities and these devices are regularly used for TPS certification work [5]. Another laboratory device which is capable of simulating certain critical features of both the aero and thermal environment of super-orbital re-entry is the expansion tube, and three such facilities have been operating at the University of Queensland in recent years[10]. Despite some success, wind tunnel tests do not achieve full simulation, however, a virtually complete physical simulation of particular re-entry conditions can be obtained from dedicated flight testing, and the Apollo era FIRE II flight experiment [2] is the premier example which still forms an important benchmark for modern simulations. Dedicated super-orbital flight testing is generally considered too expensive today, and there is a reluctance to incorporate substantial instrumentation for aerothermal diagnostics into existing missions since it may compromise primary mission objectives. An alternative approach to on-board flight measurements, with demonstrated success particularly in the ‘Stardust’ sample return mission, is remote observation of spectral emissions from the capsule and shock layer [8]. JAXA’s ‘Hayabusa’ sample return capsule provides a recent super-orbital reentry example through which we illustrate contributions in three areas: (1) physical simulation of super-orbital re-entry conditions in the laboratory; (2) computational simulation of such flows; and (3) remote acquisition of optical emissions from a super-orbital re entry event
Developing new approaches to measuring NHS outputs and productivity
The Centre for Health Economics and National Institute of Economic and Social Research have recently completed a project funded by the Department of Health to improve measurement of the productivity of the NHS. The researchers have suggested better ways of measuring both outputs and inputs to improve estimates of productivity growth. Past estimates of NHS output growth have not taken account of changes in quality. The CHE/NIESR team conclude that the routine collection of health outcome data on patients is vital to measure NHS quality. They also propose making better use of existing data to quality adjust output indices to capture improvements in hospital survival rates and reductions in waiting times. With these limited adjustments the team estimate that annual NHS output growth averaged 3.79% between 1998/99 and 2003/04.The research team has also developed improved ways of measuring NHS inputs, particularly by drawing on better information about how many people are employed in the NHS and by recognising that staff are becoming increasingly better qualified. There have been substantial increases in staffing levels, pharmaceutical use and investment in equipment and buildings since 1998/99. The net effect of this growth in both outputs and inputs is that, according to the research team’s estimates, NHS productivity declined by about 1.59% a year since 1998/99. This is not out of line with estimates of growth rates in other UK and US service sectors, including insurance and business services. Nor is it surprising that recent years have seen negative growth in the NHS. There are at least two reasons. First, there has been an unprecedented increase in NHS expenditure. The NHS has had to employ more staff to meet the requirements of the European Working Time Directive and hospital consultants and general practitioners, in particular, have benefited from new pay awards.Second, the NHS collects very little information about what actually happens to patients as a result of their contact with the health service. Until there is routine collection of health outcomes data, measurement of the quality of NHS output will remain partial and productivity growth is likely to be underestimated.
2010 International consensus on cardiopulmonary resuscitation and emergency cardiovascular care science with treatment recommendations, part 5: adult basic life support
Negotiating identities: ethnicity and social relations in a young offenders' institution
This article explores the situated nature of male prisoner identities in the late modern British context, using the contrasting theoretical frames of Sykes's (1958) indigenous model and Jacobs' (1979) importation model of prisoner subcultures and social relations. Drawing on eight months of ethnographic fieldwork in an ethnically, religiously and nationally diverse young offenders institution, consideration is given to how prisoners manage and negotiate difference, exploring the contours of racialization and racism which can operate in ambiguous and contradictory ways. Sociological understandings of identity, ethnicity, racialization and racism are used to inform a more empirically grounded theoretical criminology
Systematics of the Tribe Stipeae (Gramineae) Using Molecular Data
Internal transcribed spacer (ITS) sequences have been determined for a wide range of stipoid grasses (Poaceae, Pooideae, Stipeae). Nardus was confirmed as the most appropriate outgroup. Anisopogon is consistently included among the stipoid genera. Lithachne and Oryza form a clade and are clearly not close to Stipeae, and there is no support for including Brachyelytrum within Stipeae. Ampelodesmos and Diarrhena do appear among the core taxa in some analyses, but their positions are unstable and the evidence for retaining them is limited. So far there is inadequate support for rejecting them from Stipeae, so they should be included in any comprehensive study of the tribe. The ITS phylogeny supports a narrow interpretation of Jarava, one that includes only species with clear adaptations to anemophilous diaspore dispersal. There is no support for Achnatherum s.l. being a monophyletic group, nor are there any clear and consistent groups within it. Nassella, Hesperostipa, and Piptochaetium remain well supported. The data support some internal groupings within Nassella, but the sample size is small. It may be worthwhile investigating subgeneric relationships within Nassella. Anemanthele always appears associated with, and sometimes within, Austrostipa, but its position is inconsistent. We recommend continuing to recognize it at the generic level because of its distinctive morphological characters. Stipa s.s. shows some cohesion, but the results also suggest that some species currently included in the genus do not belong in it, suggestions that are supported by other studies. There has been no advance in understanding Piptatherum. The data support some of the subgeneric groupings within Austrostipa, but suggest that others should be combined. Austrostipa subgen. Falcateae is well supported, in part by a shared deletion. Additional species of Stipa s.s. and Piptatherum are being sequenced to broaden the sampling of these two genera
Regression Trees Versus Stepwise Regression
Many methods have been developed to determine the appropriate subset of independent variables in a multiple variable problem. Some of the methods are application specific while others have a wide range of uses. This study compares two such methods, Regression Trees and Stepwise Regression. A simulation using a known distribution is used for the comparison. In 699 out of 742 cases the Regression Tree method gave better predictors than the Stepwise Regression procedure
Situating the humanistic paradigm in clinical dental hygiene : empathic understanding, thoughtfulness and tact, and pedagogical influence
Humanistic teaching endeavors are gaining a renewed focus in dental education as a result of the sustained number of oral health disparities in the United States. The accrediting body for dental education calls for institutions to provide a humanistic environment characterized by respect, tolerance, understanding, and concern for others: one fostered by mentoring, advising, and small group interaction. The voices of dental educators are absent from the literature on humanistic pedagogy; therefore, dental educators are unable to share or access teaching knowledge regarding what humanistic pedagogy looks like. The central research question of this study is, In what ways do clinical dental hygiene instructors situate the humanistic paradigm? The research was guided through the qualitative method of interpretive description. Two semi-structured interviews of 12 clinical dental hygiene instructors from community colleges in the Midwest were conducted. Data were analyzed using the constant comparative method. Results of the study provide the reader a greater understanding of teaching in a human way through the constructs of empathic understanding, thoughtfulness and tact, and pedagogical influence
Translational research in South Africa: evaluating implementation quality using a factorial design
Background: HealthWise South Africa: Life Skills for Adolescents (HW) is an evidence- based substance use and sexual risk prevention program that emphasizes the positive use of leisure time. Since 2000, this program has evolved from pilot testing through an efficacy trial involving over 7,000 youth in the Cape Town area. Beginning in 2011, through 2015, we are undertaking a new study that expands HW to all schools in the Metro South Education District.
Objective: This paper describes a research study designed in partnership with our South African collaborators that examines three factors hypothesized to affect the quality and fidelity of HW implementation: enhanced teacher training; teacher support, structure and supervision; and enhanced school environment.
Methods: Teachers and students from 56 schools in the Cape Town area will participate in this study. Teacher observations are the primary means of collecting data on factors affecting implementation quality. These factors address the practical concerns of teachers and schools related to likelihood of use and cost-effectiveness, and are hypothesized to be "active ingredients" related to high-quality program implementation in real-world settings. An innovative factorial experimental design was chosen to enable estimation of the individual effect of each of the three factors.
Results: Because this paper describes the conceptualization of our study, results are not yet available.
Conclusions: The results of this study may have both substantive and methodological implications for advancing Type 2 translational research
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