1,509 research outputs found
The Impact of Intermittent Auscultation and Physiologic Labor Support Education for Nurses on Patient Satisfaction and Nurse Self-Efficacy
Knowledge and implementation of intermittent fetal auscultation (IA)and labor support mechanisms in the hospital setting are becoming a lost art. Nurses are well-trained on how to utilize technology and perform medical interventions for laboring patients, but are losing the confidence and skills necessary to promote normal, physiologic births for low-risk women. In order to address these concerns, an evidence-based practice project was piloted in a hospital in Virginia. Nurses were trained on the science, clinical application, and outcomes of both intermittent auscultation and continuous electronic fetal monitoring for low-risk women; education was also focused on labor support mechanisms and the effects of the birth environment on laboring women. The program was structured in a pre-test/post-test format, and nurses were given a three-month implementation period to apply learned practices. Nurses also filled out a survey to measure self-efficacy of labor-support mechanisms; the survey was administered prior to the seminar and following the three-month implementation period. Results from the surveys demonstrated an increase in nurse’s self-efficacy after implementation, as well as an increase in labor support knowledge following the educational seminar. To obtain patient views, all patients who gave birth were given a birth satisfaction survey during the three-month implementation period; patients were asked to specify if they had continuous fetal monitoring or intermittent auscultation, and whether any medical interventions were needed during labor and birth. Overall program results suggest that nurses benefit from continued education on normal labor and birth practices, but that the culture of the hospital unit, beliefs and values of individual patients, and provider practices affect the implementation of IA and the potential reduction of medical interventions in labor
An Experimental Investigation of the Structural Properties of High Modulus Aluminium Alloy
The purpose of this report is to give the results of
an experimental investigation of the structural properties of
high modulus aluminium alloy.
The tests carried out consisted of tension,
compression, hardness, bending and compression panel
investigations.
It was found that high modulus material is difficult
to form and very prone to cracking on failure.
Thus although the material has a definite structural
application, in view of the forming and cracking problems it is
doubtful whether further development is worthwhile
Heavy Quark Production and PDF's Subgroup Report
We present a status report of a variety of projects related to heavy quark
production and parton distributions for the Tevatron Run II.Comment: Latex. 8 pages, 7 eps figures. Contribution to the Physics at Run II
Workshops: QCD and Weak Boson Physic
Color transparency in deeply inelastic diffraction
We suggest a simple physical picture for the diffractive parton distributions
that appear in diffractive deeply inelastic scattering. In this picture,
partons impinging on the proton can have any transverse separation, but only
when the separation is small can they penetrate the proton without breaking it
up. By comparing the predictions from this picture with the diffractive data
from HERA, we determine rough values for the small separations that dominate
the diffraction process.Comment: 10 pages, 2 figures; v2: citations added, two comments revised and
expanded, results unchange
Spin operator and spin states in Galilean covariant Fermi field theories
Spin degrees of freedom of the Galilean covariant Dirac field in (4+1)
dimensions and its nonrelativistic counterpart in (3+1) dimensions are
examined. Two standard choices of spin operator, the Galilean covariant and
Dirac spin operators, are considered. It is shown that the Dirac spin of the
Galilean covariant Dirac field in (4+1) dimensions is not conserved, and the
role of non-Galilean boosts in its nonconservation is stressed out. After
reduction to (3+1) dimensions the Dirac field turns into a nonrelativistic
Fermi field with a conserved Dirac spin. A generalized form of the Levy-Leblond
equations for the Fermi field is given. One-particle spin states are
constructed. A particle-antiparticle system is discussed.Comment: Minor corrections in the text; journal versio
Two-hadron interference fragmentation functions. Part I: general framework
We investigate the properties of interference fragmentation functions
measurable from the distribution of two hadrons produced in the same jet in the
current fragmentation region of a hard process. We discuss the azimuthal
angular dependences in the leading order cross section of two-hadron inclusive
lepton-nucleon scattering as an example how these interference fragmentation
functions can be addressed separately.Comment: RevTeX, 7 figures, first part of a work split in two, second part
forthcoming in few day
Fluctuations of company yearly profits versus scaled revenue: Fat tail distribution of Levy type
We analyze annual revenues and earnings data for the 500 largest-revenue U.S.
companies during the period 1954-2007. We find that mean year profits are
proportional to mean year revenues, exception made for few anomalous years,
from which we postulate a linear relation between company expected mean profit
and revenue. Mean annual revenues are used to scale both company profits and
revenues. Annual profit fluctuations are obtained as difference between actual
annual profit and its expected mean value, scaled by a power of the revenue to
get a stationary behavior as a function of revenue. We find that profit
fluctuations are broadly distributed having approximate power-law tails with a
Levy-type exponent , from which we derive the associated
break-even probability distribution. The predictions are compared with
empirical data.Comment: 6 pages, 6 figure
Analytic Perturbation Theory: A New Approach to the Analytic Continuation of the Strong Coupling Constant into the Timelike Region
The renormalization group applied to perturbation theory is ordinarily used
to define the running coupling constant in the spacelike region. However, to
describe processes with timelike momenta transfers, it is important to have a
self-consistent determination of the running coupling constant in the timelike
region. The technique called analytic perturbation theory (APT) allows a
consistent determination of this running coupling constant. The results are
found to disagree significantly with those obtained in the standard
perturbative approach. Comparison between the standard approach and APT is
carried out to two loops, and threshold matching in APT is applied in the
timelike region.Comment: 16 pages, REVTeX, 7 postscript figure
Diffractive deeply inelastic scattering of hadronic states with small transverse size
Diffractive deeply inelastic scattering from a hadron is described in terms
of diffractive quark and gluon distributions. If the transverse size of the
hadronic state is sufficiently small, these distributions are calculable using
perturbation theory. We present such a calculation and discuss the underlying
dynamics. We comment on the relation between this dynamics and the pattern of
scaling violation observed in the hard diffraction of large-size states at
HERA.Comment: 8 pages including 3 figures, REVTE
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