4,754 research outputs found
Individualism-collectivism and interpersonal memory guidance of attention
Recently it has been shown that the allocation of attention by a participant in a visual search task can be affected by memory items that have to be maintained by a co-actor, when similar tasks are jointly engaged by dyads (He, Lever, & Humphreys, 2011). In the present study we examined the contribution of individualism-collectivism to this ‘interpersonal memory guidance’ effect. Actors performed visual search while a preview image was either held by the critical participant, held by a co-actor or was irrelevant to either participant. Attention during search was attracted to stimuli that matched the contents of the co-actor’s memory. This interpersonal effect correlated with the collectivism scores, and was enhanced by priming with a collectivistic scenario. The dimensions of individualism, however, did not contribute to performance. These data suggest that collectivism, but not individualism, modulates interpersonal influences on memory and attention in joint action
Japanese Banks' Monitoring Activities and the Performance of Borrower Firms: 1981-1996
Using micro data of Japanese banks and borrower firms, we construct an index measure that quantitatively describes the monitoring activities of Japanese banks. We examine the effects of bank monitoring on the profitability of borrower firms. We find significant positive effects in the periods 1986-1991 and 1992-1996, although there is no significant effect in the 1981-1985 period . We also examine how banks' monitoring affects borrowers. The results show that the positive effects of banks' monitoring on borrowers' profitability are mostly caused by screening effects, not performance-improving effects.
Quenched QCD with domain wall fermions
We report on simulations of quenched QCD using domain wall fermions, where we
focus on basic questions about the formalism and its ability to produce
expected low energy hadronic physics for light quarks. The work reported here
is on quenched lattices at and 5.85, using values
for the length of the fifth dimension between 10 and 48. We report results for
parameter choices which lead to the desired number of flavors, a study of
undamped modes in the extra dimension and hadron masses.Comment: Contribution to Lattice '98. Presented by R. Mawhinney. 3 pages, 3
figure
Pre-clinical models of small cell lung cancer and the validation of therapeutic targets
Introduction: Small-cell lung cancer (SCLC) is an aggressive form of lung cancer that has a dismal prognosis. One of the factors hindering therapeutic developments for SCLC is that most SCLC is not surgically resected resulting in a paucity of material for analysis. To address this, significant efforts have been made by investigators to develop pre-clinical models of SCLC allowing for downstream target identification in this difficult to treat cancer.
Areas covered: In this review, we describe the current pre-clinical models that have been developed to interrogate SCLC, and outline the benefits and limitations associated with each. Using examples we show how each has been used to (i) improve our knowledge of this intractable cancer, and (ii) identify and validate potential therapeutic targets that (iii) are currently under development and testing within the clinic.
Expert opinion: The large numbers of preclinical models that have been developed have dramatically improved the ways in which we can examine SCLC and test therapeutic targets/interventions. The newer models are rapidly providing novel avenues for the design and testing of new therapeutics. Despite this many of these models have inherent flaws that limit the possibility of their use for individualized therapy decision-making for SCLC
Dynamical QCD thermodynamics with domain wall fermions
We present results from numerical simulations of full, two flavor QCD
thermodynamics at N_t=4 with domain wall fermions. For the first time a
numerical simulation of the full QCD phase transition displays a low
temperature phase with spontaneous chiral symmetry breaking but intact flavor
symmetry and a high temperature phase with the full SU(2) x SU(2) chiral flavor
symmetry.Comment: LATTICE98(hightemp
Reconnection Outflows and Current Sheet Observed with Hinode/XRT in the 2008 April 9 "Cartwheel CME" Flare
Supra-arcade downflows (SADs) have been observed with Yohkoh/SXT (soft X-rays
(SXR)), TRACE (extreme ultra-violet (EUV)), SoHO/LASCO (white light),
SoHO/SUMER (EUV spectra), and Hinode/XRT (SXR). Characteristics such as low
emissivity and trajectories which slow as they reach the top of the arcade are
consistent with post-reconnection magnetic flux tubes retracting from a
reconnection site high in the corona until they reach a lower-energy magnetic
configuration. Viewed from a perpendicular angle, SADs should appear as
shrinking loops rather than downflowing voids. We present XRT observations of
supra-arcade downflowing loops (SADLs) following a coronal mass ejection (CME)
on 2008 April 9 and show that their speeds and decelerations are consistent
with those determined for SADs. We also present evidence for a possible current
sheet observed during this flare that extends between the flare arcade and the
CME. Additionally, we show a correlation between reconnection outflows observed
with XRT and outgoing flows observed with LASCO.Comment: 32 pages, 23 figures, Accepted for publication by the Astrophysical
Journal (Oct. 2010
Border is better than distance? Contagious corruption in one belt one road economies
Employing data of one belt one road (OBOR) countries from 2002 to 2013, this study compares the contagious corruption difference between geographic border and distance through the dynamic spatial econometric model. The empirical results not only confirm that corruption in OBOR countries exists under various contagious channels, but also indicate that border effects, serving as contagious channels for corruption, are better than distance effects. The empirical implication is that OBOR countries with a common border tend to possess contagious corruption due to the hosts’ demonstration effect and the convenience of transferring illegal assets. We advise that those OBOR countries should enhance the supervision of cash flow, look for any opportunity of kicking back a portion of the stolen money, and establish a specific task force on corruption
Hard X-ray and UV Observations of the 2005 January 15 Two-ribbon Flare
In this paper, we present comprehensive analysis of a two-ribbon flare
observed in UV 1600{\AA} by Transition Region and Coronal Explorer and in HXRs
by Reuven Ramaty High Energy Solar Spectroscopic Imager. HXR (25-100 keV)
imaging observations show two kernels of size (FWHM) 15?? moving along the two
UV ribbons. We find the following results. (1) UV brightening is substantially
enhanced wherever and whenever the compact HXR kernel is passing, and during
the HXR transit across a certain region, the UV count light curve in that
region is temporally correlated with the HXR total flux light curve. After the
passage of the HXR kernel, the UV light curve exhibits smooth monotonical
decay. (2)We measure the apparent motion speed of the HXR sources and UV ribbon
fronts, and decompose the motion into parallel and perpendicular motions with
respect to the magnetic polarity inversion line (PIL). It is found that HXR
kernels and UV fronts exhibit similar apparent motion patterns and speeds. The
parallel motion dominates during the rise of the HXR emission, and the
perpendicular motion starts and dominates at the HXR peak, the apparent motion
speed being 10-40 km s-1. (3) We also find that UV emission is characterized by
a rapid rise correlated with HXRs, followed by a long decay on timescales of
15-30 minutes. The above analysis provides evidence that UV brightening is
primarily caused by beam heating, which also produces thick-target HXR
emission. The thermal origin of UV emission cannot be excluded, but would
produce weaker heating by one order of magnitude. The extended UV ribbons in
this event are most likely a result of sequential reconnection along the PIL,
which produces individual flux tubes (post-flare loops), subsequent non-thermal
energy release and heating in these flux tubes, and then the very long cooling
time of the transition region at the feet of these flux tubes.Comment: 8 figure
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