5,454 research outputs found
Can Money Change Who We Are? Estimating the Effects of Unearned Income on Measures of Incentive-Enhancing Personality Traits
The importance of noncognitive childhood skills in predicting higher wages is well documented in economics. This paper studies the reverse. Using surveys of lottery winners, we analyze the effects of unearned income on the Big Five personality traits. After correcting for potential endogeneity problems from prize sizes, we find that unearned income improves traits that predict pro-social and cooperative behaviors, preferences for social contact, empathy, and gregariousness, and reduces individuals' tendency toward negative emotional states: known in economics literature as incentive-enhancing personality traits. Our results support the possibility of scope for later interventions to improve the personality traits of adults.noncognitive skills, personality traits, lottery winners, instrumental variables, unearned income
Recommended from our members
Improved Log(gf) Values for Lines of Ti I and Abundance Determinations in the Photospheres of the Sun and Metal-Poor Star HD 84937 (Accurate Transition Probabilities for Ti I)
New atomic transition probability measurements for 948 lines of Ti I are reported. Branching fractions from Fourier transform spectra and from spectra recorded using a 3 m echelle spectrometer are combined with published radiative lifetimes from laser-induced fluorescence measurements to determine these transition probabilities. Generally good agreement is found in comparisons to the NIST Atomic Spectra Database. The new Ti I data are applied to re-determine the Ti abundance in the photospheres of the Sun and metal-poor star HD 84937 using many lines covering a range of wavelength and excitation potential to explore possible non-local thermal equilibrium effects. The variation of relative Ti/Fe abundance with metallicity in metal-poor stars observed in earlier studies is supported in this study.NSF AST-1211055, AST-0908978, AST-1211585NSF REU grant AST-1004881ESO Science Archive Facility 073.D-0024, 266.D-5655NASA NAS 5-26555Astronom
In vitro characterization of cadmium and zinc uptake via the gastrointestinal tract of rainbow trout (Oncorhynchus mykiss): interactive effects and the influence of calcium
An in vitro gut sac technique was employed to study whether Cd and Zn uptake mechanisms in the
gastro-intestinal tract of the rainbow trout are similar to those at the gills, where both metals are taken
up via the Ca transport pathway. Metal accumulation in surface mucus, in the mucosal epithelium, and
transport into the blood space were assayed using radiolabelled Cd or Zn concentrations of 50 mol L−1
in the luminal (internal) saline. Elevated luminal Ca (10 or 100 mmol L−1 versus 1 mmol L−1) reduced Cd
uptake into all three phases by approximately 60% in the stomach, but had no effect in the anterior,
mid, or posterior intestine. This finding is in accordance with recent in vivo evidence that Ca is taken
up mainly via the stomach, and that high [Ca] diets inhibit Cd accumulation from the food specifically
in this section of the tract. In contrast, 10 mmol L−1 luminal Ca had no effect on Zn transport in any
section, whereas 100 mmol L−1 Ca stimulated Zn uptake, by approximately threefold, into all three phases
in the stomach only. There was no influence of elevated luminal Zn (10 mmol L−1) on Cd uptake in the
stomach or anterior intestine, or of high Cd (10 mmol L−1) on Zn uptake in these sections. However, high
[Zn] stimulated Cd transport into the blood space but inhibited accumulation in the mucosal epithelium
and/or mucus-binding in the mid and posterior intestine, whereas high [Cd] exerted a reciprocal effect
in the mid-intestine only. We conclude that Cd uptake occurs via an important Ca-sensitive mechanism
in the stomach which is different from that at the gills, while Cd transport mechanisms in the intestine
are not directly Ca-sensitive. Zn uptake does not appear to involve Ca uptake pathways, in contrast to the
gills. These results are discussed in the context of other possible Cd and Zn transport pathways, and the
emerging role of the stomach as an organ of divalent metal uptake.Natural Sciences and Engineering Research Council of Canada CRD Program, the International Lead
Zinc Research Organization, the International Zinc Association, the
Nickel Producers Environmental Research Association, the International Copper Association, the Copper Development Association,
Teck-Cominco, Xstrata (Noranda-Falconbridge), and Inc
In vitro analysis of the bioavailability of six metals via the gastrointestinal tract of rainbow trout (Oncorhynchus mykiss)
An in vitro gut sac technique was used to compare the uptake rates of essential (copper, zinc and nickel) and non-essential metals (silver,
cadmium and lead) at 50 mol L−1 each (a typical nutritive level in solution in chyme) in the luminal saline in four sections of the gastro-intestinal
tract (stomach, anterior, mid and posterior intestines) of the freshwater rainbow trout. Cu, Zn, Cd and Ag exhibited similar regional patterns: on an
area-specific basis, uptake rates for these metals were highest in the anterior intestine, lowest in the stomach, and approximately equal in the mid
and posterior intestinal segments. When these rates were converted to a whole animal basis, the predominance of the anterior intestine increased
because of its greater area, while the contribution of the stomach rose slightly to approach those of the mid and posterior intestines. However, for
Pb and Ni, area-specific and whole organism transport rates were greatest in the mid (Pb) and posterior (Ni) intestines. Surprisingly, total transport
rates did not differ appreciably among the essential and non-essential metals, varying only from 0.025 (Ag) to 0.050 nmol g−1 h−1 (Ni), suggesting
that a single rate constant can be applied for risk assessment purposes. These rates were generally comparable to previously reported uptake rates
from waterborne exposures conducted at concentrations 1–4 orders of magnitude lower, indicating that both routes are likely important, and that gut
transporters operate with much lower affinity than gill transporters. Except for Ni, more metal was bound to mucus and/or trapped in the mucosal
epithelium than was transported into the blood space in every compartment except the anterior intestine, where net transport predominated. Overall,
mucus binding was a significant predictor of net transport rate for every metal except Cd, and the strongest relationship was seen for Pb.Natural Sciences and
Engineering Research Council of Canada CRD Program, the
International Lead Zinc Research Organization, the International Zinc Association, the Nickel Producers Environmental
Research Association, the International Copper Association,
the Copper Development Association, Teck-Cominco, NorandaFalconbridge, and Inc
Confinement of the Sun's interior magnetic field: some exact boundary-layer solutions
High-latitude laminar confinement of the Sun's interior magnetic field is
shown to be possible, as originally proposed by Gough and McIntyre (1998) but
contrary to a recent claim by Brun and Zahn (A&A 2006). Mean downwelling as
weak as 2x10^-6cm/s -- gyroscopically pumped by turbulent stresses in the
overlying convection zone and/or tachocline -- can hold the field in
advective-diffusive balance within a confinement layer of thickness scale ~
1.5Mm ~ 0.002 x (solar radius) while transmitting a retrograde torque to the
Ferraro-constrained interior. The confinement layer sits at the base of the
high-latitude tachocline, near the top of the radiative envelope and just above
the `tachopause' marking the top of the helium settling layer. A family of
exact, laminar, frictionless, axisymmetric confinement-layer solutions is
obtained for uniform downwelling in the limit of strong rotation and
stratification. A scale analysis shows that the flow is dynamically stable and
the assumption of laminar flow realistic. The solution remains valid for
downwelling values of the order of 10^-5cm/s but not much larger. This suggests
that the confinement layer may be unable to accept a much larger mass
throughput. Such a restriction would imply an upper limit on possible internal
field strengths, perhaps of the order of hundreds of gauss, and would have
implications also for ventilation and lithium burning.
The solutions have interesting chirality properties not mentioned in the
paper owing to space restrictions, but described at
http://www.atmos-dynamics.damtp.cam.ac.uk/people/mem/papers/SQBO/solarfigure.htmlComment: 6 pages, 3 figures, to appear in conference proceedings: Unsolved
Problems in Stellar Physic
Recommended from our members
Improved V I Log(gf) Values and Abundance Determinations in the Photospheres of the Sun and Metal-Poor Star HD 84937
New emission branching fraction measurements for 836 lines of the first spectrum of vanadium (V I) are determined from hollow cathode lamp spectra recorded with the National Solar Observatory 1 m Fourier transform spectrometer (FTS) and a high-resolution echelle spectrometer. The branching fractions are combined with recently published radiative lifetimes from laser-induced fluorescence measurements to determine accurate absolute atomic transition probabilities for the 836 lines. The FTS data are also used to extract new hyperfine structure A coefficients for 26 levels of neutral vanadium. These new laboratory data are applied to determine the V abundance in the Sun and metal-poor star HD 84937, yielding log epsilon(V) = 3.956 +/- 0.004 (sigma = 0.037) based on 93 V I lines and log epsilon(V) = 1.89 +/- 0.03 (sigma = 0.07) based on nine Vi lines, respectively, using the Holweger-Muller 1D model. These new V I abundance values for the Sun and HD 84937 agree well with our earlier determinations based upon V II.NASA NNX10AN93GNSF AST-1211055, AST-1211585Astronom
Can money change who we are? estimating the effects of unearned income on measures of incentive-enhancing personality
The importance of noncognitive childhood skills in predicting higher wages is well documented in economics. This paper studies the reverse. Using surveys of lottery winners, we analyze the effects of unearned income on the Big Five personality traits. After correcting for potential endogeneity problems from prize sizes, we find that unearned income improves traits that predict pro-social and cooperative behaviors, preferences for social contact, empathy, and gregariousness, and reduces individuals' tendency toward negative emotional states: known in economics literature as incentive-enhancing personality traits. Our results support the possibility of scope for later interventions to improve the personality traits of adults
Money or mental health : the cost of alleviating psychological distress with monetary compensation versus psychological therapy
Money is the default way in which intangible losses, such as pain and suffering, are currently valued and compensated in law courts. Economists have suggested that subjective well-being regressions can be used to guide compensation payouts for psychological distress following traumatic life events. We bring together studies from law, economic, psychology and medical journals to show that alleviating psychological distress through psychological therapy could be at least 32 times more cost effective than financial compensation. This result is not only important for law courts but has important implications for public health. Mental health is deteriorating across the world – improvements to mental health care might be a more efficient way to increase the health and happiness of our nations than pure income growth
- …