2,616 research outputs found
New Approach to Parton Shower MC's for Precision QCD Theory: HERWIRI1.0(31)
By implementing the new IR-improved
Dokshitzer-Gribov-Lipatov-Altarelli-Parisi-Callan-Symanzik (DGLAP-CS) kernels
recently developed by one of us in the HERWIG6.5 environment we generate a new
MC, HERWIRI1.0(31), for hadron-hadron scattering at high energies. We use MC
data to illustrate the comparison between the parton shower generated by the
standard DGLAP-CS kernels and that generated by the new IR-improved DGLAP-CS
kernels. The interface to MC@NLO, MC@NLO/HERWIRI, is illustrated. Comparisons
with FNAL data and some discussion of possible implications for LHC
phenomenology are also presented.Comment: 24 pages, 10 figures; published versio
In vitro evaluation of a prodrug approach for Gly-D-P18, a host defence peptide and novel anticancer agent
Graphene formation on SiC substrates
Graphene layers were created on both C and Si faces of semi-insulating,
on-axis, 4H- and 6H-SiC substrates. The process was performed under high vacuum
(<10-4 mbar) in a commercial chemical vapor deposition SiC reactor. A method
for H2 etching the on-axis sub-strates was developed to produce surface steps
with heights of 0.5 nm on the Si-face and 1.0 to 1.5 nm on the C-face for each
polytype. A process was developed to form graphene on the substrates
immediately after H2 etching and Raman spectroscopy of these samples confirmed
the formation of graphene. The morphology of the graphene is described. For
both faces, the underlying substrate morphology was significantly modified
during graphene formation; sur-face steps were up to 15 nm high and the uniform
step morphology was sometimes lost. Mo-bilities and sheet carrier
concentrations derived from Hall Effect measurements on large area (16 mm
square) and small area (2 and 10 um square) samples are presented and shown to
compare favorably to recent reports.Comment: European Conference on Silicon Carbide and Related Materials 2008
(ECSCRM '08), 4 pages, 4 figure
Exploring methods for selection and integration of stakeholder views in the development of core outcome sets:a case study in reconstructive breast surgery
BACKGROUND: The development and use of core outcome sets (COSs) in trials may improve data synthesis and reduce outcome reporting bias. The selection of outcomes in COSs is informed by views of key stakeholders, yet little is known about the role and influence of different stakeholders’ views during COS development. We report an exploratory case study examining how stakeholder selection and incorporation of stakeholders’ views may influence the selection of outcomes for a COS in reconstructive breast surgery (RBS). We also make recommendations for future considerations. METHODS: Key stakeholder groups and subgroups were identified from the literature and expert opinion by the COS management group. They included health care professionals, subdivided by profession (breast and plastic surgeons, specialist nurses and psychologists) and patients, subdivided according to type of surgery received, timing of reconstruction, time since surgery and patient age. All participated in a survey in which they were asked to prioritise outcomes. Outcomes were prioritised using a 9-point scale from 1 (not important) to 9 (extremely important). The proportion of (1) all participants, ignoring stakeholder group (single heterogeneous panel analysis), (2) ‘professional’ and ‘patient’ groups separately (two heterogeneous panels), ignoring prespecified subgroups and (3) each participant subgroup separately (multiple homogeneous panel analysis) rating each item ‘extremely important’ was summarised and compared to explore how selection and integration of stakeholder views may influence outcome prioritisation. RESULTS: There were many overlaps between items rated as most important by all groups. Specific stakeholders, however, prioritised specific concerns and a broader range of outcomes were prioritised when the subgroups were considered separately. For example, two additional outcomes were prioritised when patient and professional groups were considered separately and eight additional outcomes were identified when the views of the individual subgroups were explored. In general, patient subgroups preferentially valued additional clinical outcomes, including unplanned surgery, whereas professional subgroups prioritised additional psychosocial issues including body image. CONCLUSION: Stakeholder groups value different outcomes. Selection of groups, therefore, is important. Our recommendations for robust and transparent stakeholder selection and integration of stakeholder views may aid future COS developers in the design and conduct of their studies and improve the validity and value of future COS
Phenomenology of the Interplay between IR-Improved DGLAP-CS Theory and NLO ME Matched Parton Shower MC Precision
We present the current status of the application of our approach of {\it
exact} amplitude-based resummation in quantum field theory to precision QCD
calculations, by realistic MC event generator methods, as needed for precision
LHC physics.In this ongoing program of research, we discuss recent results as
they relate to the interplay of the attendant IR-Improved DGLAP-CS theory of
one of us and the precision of exact NLO matrix element matched parton shower
MC's in the Herwig6.5 environment in relation to recent LHC experimental
observations. There continues to be reason for optimism in the attendant
comparison of theory and experiment.Comment: 11 pages, 3 figures; now 12 pages, 4 figures -- explanatory material
added and title changed for publication in Phys. Lett.
Community Partnership Interprofessional Program as Pedagogy: Process Outcomes and Faculty Impressions
Background: Since 1992, East Tennessee State University (ETSU) has augmented traditional health professions curricula with community-based, experiential learning through the Community Partnership Interprofessional Rural Health Program. The program was expanded in 2005 by including more interprofessional faculty, students, and community partners. Interprofessional teams of students and faculty work with community organizations to identify health needs and assets and implement health education programs or services.Methods and Findings: Course process outcomes were compiled from a survey of section reports and presentations. Faculty impressions of being involved in the course were gathered through conducting interviews with five interprofessional faculty. From 2005–2011, community partners included individuals, groups, and organizations within seven counties in Tennessee. Forty programs and services have been implemented through the program during the past seven years. Faculty reported the main reasons for being involved are their interests in interprofessional education and working in communities. Faculty also cited 12 different types of teaching strategies (pedagogical approaches) employed through the course.Conclusions: The Community Partnership Interprofessional Rural Health Program at ETSU is a testing ground for the unique combination of communitybased learning and interprofessional health education. Study findings demonstrate how the course has benefited faculty, students, and communities
Radial dyssynchrony assessed by cardiovascular magnetic resonance in relation to left ventricular function, myocardial scarring and QRS duration in patients with heart failure
Radial dyssynchrony is almost universal in patients with heart failure. This vies against the notion that a lack of response to CRT is related to a lack of dyssynchrony
Order N photonic band structures for metals and other dispersive materials
We show, for the first time, how to calculate photonic band structures for
metals and other dispersive systems using an efficient Order N scheme. The
method is applied to two simple periodic metallic systems where it gives
results in close agreement with calculations made with other techniques.
Further, the approach demonstrates excellent numerical stablity within the
limits we give. Our new method opens the way for efficient calculations on
complex structures containing a whole new class of material.Comment: Four pages, plus seven postscript figures. Submitted to Physical
Review Letter
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