861 research outputs found
Life Skill Development and its Impact on Perceived Stress, Employment and Education Pursuits: A Study of Young Adults with a History of Homelessness and Trauma
An occupational therapy educational training group for young adults in permanent supported housing was developed, implemented and evaluated with pre-post outcome measures including Goal Attainment Scaling (GAS) and the Perceived Stress Scale-10 (PSS-10). The study explored stress levels and employment-related goals of individuals who have aged out of the foster care system and may also have had a history of chronic homelessness and trauma. Results demonstrated a trend towards significance in perceived stress 9Z=1.689, p=0.91) with 7 of 8 participants surpassing the expected outcome according to GAS. Limitations included a small convenience sample (n=8), inconsistent attendance and use of self-report measures.
This project was unfunded. No conflicts of interest are declared. This study was approved by Thomas Jefferson University\u27s Institutional Review Board (Control # 18D.768) on 1/23/19
Improved Coulomb Correction Formulae for Bose-Einstein Correlations
We present improved Coulomb correction formulae for Bose-Einstein
correlations including also exchange term and use them to calculate appropriate
correction factors for several source functions. It is found that Coulomb
correction to the exchange function in the Bose-Einstein correlations cannot be
neglected.Comment: LaTex file, 8 pages, hard copies of 6 (multiple) figures available on
request to [email protected] or [email protected]
Childrenâs comprehension monitoring of multiple situational dimensions of a narrative
Narratives typically consist of information on multiple aspects of a situation. In order to successfully create a coherent representation of the described situation, readers are required to monitor all these situational dimensions during reading. However, little is known about whether these dimensions differ in the ease with which they can be monitored. In the present study, we examined whether children in Grades 4 and 6 monitor four different dimensions (i.e., emotion, causation, time, and space) during reading, using a self-paced reading task containing inconsistencies. Furthermore, to explore what causes failure in inconsistency detection, we differentiated between monitoring processes related to availability and validation of information by manipulating the distance between two pieces of conflicting information. The results indicated that the monitoring processes varied as a function of dimension. Children were able to validate emotional and causal information when it was still active in working memory, but this was not the case for temporal and spatial information. When context and target information were more distant from each other, only emotionally charged information remained available for further monitoring processes. These findings show that the influence of different situational dimensions should be taken into account when studying childrenâs reading comprehension
Improving the sensitivity of future GW observatories in the 1-10 Hz band: Newtonian and seismic noise
The next generation gravitational wave interferometric detectors will likely be underground detectors to extend the GW detection frequency band to frequencies below the Newtonian noise limit. Newtonian noise originates from the continuous motion of the Earthâs crust driven by human activity, tidal stresses and seismic motion, and from mass density fluctuations in the atmosphere. It is calculated that on Earthâs surface, on a typical day, it will exceed the expected GW signals at frequencies below 10 Hz. The noise will decrease underground by an unknown amount. It is
important to investigate and to quantify this expected reduction and its effect on the sensitivity of future detectors, to plan for further improvement strategies. We report about some of these aspects. Analytical models can be used in the simplest scenarios to get a better qualitative and semi-quantitative understanding. As more complete modeling can be done numerically, we will discuss also some results obtained with a finite-element-based modeling tool. The method is verified by comparing its results with the results of analytic calculations for surface detectors. A key point about noise models is their initial parameters and conditions, which require detailed information about seismic motion in a real scenario. We will describe an effort to characterize the seismic activity at the Homestake mine which is currently in progress. This activity is specifically aimed to provide informations and to explore the site as a possible candidate for an underground observatory. Although the only compelling reason to put the interferometer underground is to reduce the Newtonian noise, we expect that the more stable underground environment will have a more general positive impact on the sensitivity.We will end this report with some considerations about seismic and suspension noise
Two-Proton Correlations near Midrapidity in p+Pb and S+Pb Collisions at the CERN SPS
Correlations of two protons emitted near midrapidity in p+Pb collisions at
450 GeV/c and S+Pb collisions at 200A GeV/c are presented, as measured by the
NA44 Experiment. The correlation effect, which arises as a result of final
state interactions and Fermi-Dirac statistics, is related to the space-time
characteristics of proton emission. The measured source sizes are smaller than
the size of the target lead nucleus but larger than the sizes of the
projectiles. A dependence on the collision centrality is observed; the source
size increases with decreasing impact parameter. Proton source sizes near
midrapidity appear to be smaller than those of pions in the same interactions.
Quantitative agreement with the results of RQMD (v1.08) simulations is found
for p+Pb collisions. For S+Pb collisions the measured correlation effect is
somewhat weaker than that predicted by the model simulations, implying either a
larger source size or larger contribution of protons from long-lived particle
decays.Comment: 10 pages (LaTeX) text, 4 (EPS) figures; accepted for publication in
Phys. Lett.
Pion interferometry with pion-source-medium interactions
An extended pion source, which can be temporarily created by a high energy
nuclear collision, will also absorb and distort the outgoing pions. We discuss
how this effect alters the interferometric pattern of the two-pion momentum
correlation function. In particular, we show that the two-pion correlation
function decreases rapidly when the opening angle between the pions increases.
The opening-angle dependence should serve as a new means of obtaining
information about the pion source in the analysis of experimental data.Comment: 14 pages (revtex) and 9 figures (uuencoded), Caltech preprint
MAP-175, Indiana Univ. preprint IU/NTC 914-1
Lambda-proton correlations in relativistic heavy ion collisions
The prospect of using lambda-proton correlations to extract source sizes in
relativistic heavy ion collisions is investigated. It is found that the strong
interaction induces a large peak in the correlation function that provides more
sensitive source size measurements than two-proton correlations under some
circumstances. The prospect of using lambda-proton correlations to measure the
time lag between lambda and proton emissions is also studied.Comment: 4 pages, 3 figure, revtex style. Two short paragraphs are added at
referees' recommendations. Phys. Rev. Lett. in pres
Coulomb corrections for Bose-Einstein correlations in whole momentum transfer region: Proposal of seamless fitting
We applied an improved Coulomb correction method developed by us recently to
data on identical KK-pairs production in S + Pb and p + Pb reactions at 200
GeV/c obtained by NA44 Collaboration. To analyse the whole range of the
momentum transfers measured the method of "seamless fitting" has been proposed
and used together with the asymptotic expansion formula for the Coulomb wave
function. We found that such Coulomb corrections lead sometimes to different
than previously reported (by NA44 Collaboration) interaction region and
strongly influence the long range correlations.Comment: LaTex file, 6 pages, hard copies of 5 figures available on request to
[email protected] or [email protected] (one new Fig. 5 added
MHC-B variation in maternal and paternal synthetic lines of the Argentinian Campero INTA chicken
The Campero-INTA chicken of Argentina was developed to provide a robust bird that can survive under Argentinian pasture conditions with no significant additional nutrition, producing a source of animal protein for small producers or low-income families. In previous work we described the AH paternal line of Campero and its Major Histocompatibility Complex B region (MHC-B) variation. In this work we analyzed the three remaining synthetic lines used to produce the Campero-INTA production bird: lines AS, A and E. Because of the association between variation within the MHC of chickens and disease resistance, MHC variation within this breed is of particular interest. MHC variability within the lines used to produce the Campero-INTA chicken was examined using a 90 SNP panel encompassing the chicken MHC-B region plus the VNTR, LEI0258, located within the chicken MHC. Across all four lines 12 haplotypes were found, with 7 of these being previously reported in North America/European breeds, reflecting the original breed sources for these birds. Three Campero unique haplotypes were found, two of which likely originated from MHC recombination events. MHC-B variation for all lines involved with production of the final Campero-INTA bird have now been determined.EEA PergaminoFil: Iglesias, Gabriela M. Universidad Nacional de RĂo Negro. Sede Alto Valle y Valle Medio. Escuela de Veterinaria y ProducciĂłn Agroindustrial. CĂĄtedra de GenĂ©tica; ArgentinaFil: Beker, MarĂa P. Universidad Nacional de RĂo Negro. Sede Alto Valle y Valle Medio. Escuela de Veterinaria y ProducciĂłn Agroindustrial. CĂĄtedra de GenĂ©tica; ArgentinaFil: Remolins, JosĂ© S. Universidad Nacional de RĂo Negro. Sede Alto Valle y Valle Medio. Escuela de Veterinaria y ProducciĂłn Agroindustrial. CĂĄtedra de GenĂ©tica; ArgentinaFil: Canet, Zulma Edith. Instituto Nacional de TecnologĂa Agropecuaria (INTA). EstaciĂłn Experimental Agropecuaria Pergamino. SecciĂłn Avicultura; ArgentinaFil: Canet, Zulma Edith. Universidad Nacional de Rosario. Facultad de Ciencias Veterinaria. CĂĄtedra de GenĂ©tica; ArgentinaFil: Librera, JosĂ©. Universidad Nacional de Rosario. Facultad de Ciencias Veterinarias. CĂĄtedra de GenĂ©tica; ArgentinaFil: Cantaro, Horacio Luis. Instituto Nacional de TecnologĂa Agropecuaria (INTA). EstaciĂłn Experimental Agropecuaria Alto Valle; ArgentinaFil: Cantaro, Horacio Luis. Universidad Nacional de RĂo Negro. Sede Alto Valle y Valle Medio. Escuela de Veterinaria y ProducciĂłn Agroindustrial. CĂĄtedra de GenĂ©tica; ArgentinaFil: Maizon, Daniel Omar Instituto Nacional de TecnologĂa Agropecuaria (INTA). EstaciĂłn Experimental Agropecuaria Anguil; ArgentinaFil: Fulton, Janet E. Hy-Line International; Estados Unido
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