113,829 research outputs found
Influence of Gender Appropriateness of Sex-Role and Occupational Preferences on Evaluations of a Competent Person
Previous research has found that while masculine sex-role preferences are more highly valued, persons holding gender consistent sex-role preferences generally are rated as more attractive. The present study explores the interactive effect of gender consistent/inconsistent sex-role preferences and congruent/incongruent occupational choices on evaluations of a person from varying perspectives. Statistical analysis of the data revealed (1) people holding masculine sex-role preferences are perceived to have a higher motivation to succeed, and to be more competent; (2)from the perspective of friend and potential employee, persons holding gender consistent sex-role preferences are perceived as more attractive; (3) from the perspective of potential employer, there is a tendency for males to prefer employees who hold masculine sex-role preferences, while females continue to prefer gender consistent sex-role preferences
Large deviations of a modified Jackson network: stability and rough asymptotics
Consider a modified, stable, two node Jackson network where server 2 helps
server 1 when server 2 is idle. The probability of a large deviation of the
number of customers at node one can be calculated using the flat boundary
theory of Schwartz and Weiss [Large Deviations Performance Analysis (1994),
Chapman and Hall, New York]. Surprisingly, however, these calculations show
that the proportion of time spent on the boundary, where server 2 is idle, may
be zero. This is in sharp contrast to the unmodified Jackson network which
spends a nonzero proportion of time on this boundary.Comment: Published at http://dx.doi.org/10.1214/105051604000000666 in the
Annals of Applied Probability (http://www.imstat.org/aap/) by the Institute
of Mathematical Statistics (http://www.imstat.org
Scattered-light scanner measurements of cryogenic liquid-jet breakup
The effect of highly turbulent Mach 1 gas flow and high thermal gradients on drop size measurements was investigated with a scattered light scanner. The instrument, developed at NASA-Lewis, was used to measure characteristic drop diameters or cyrogenic liquid sprays. By correcting for gas turbulence and thermal gradient affects, it was possible to obtain good reproducible data with the scattered light scanner. Tests were conducted primarily in the aerodynamic-stripping regime of liquid atomization and it was found that the loss of small droplets due to vaporization and dispersion had a marketed effect on drop size measurements. The nitrogen gas flow rate exponent of 1.33 is the same as that predicted by atomization theory for liquid jet breakup in high velocity gas flow. However, when the sprays were sampled farther downstream of the atomizer, at axial distances of 2.5 and 4.5 cm, the exponent for W sub n decreased 1.2 and 0.9, respectively. This was attributed to the loss of small droplets due to vaporization when values of downstream axial distances exceeded 1.3 cm
Quark-lepton symmetric model at the LHC
We investigate the quark-lepton symmetric model of Foot and Lew in the
context of the Large Hadron Collider (LHC). In this `bottom-up' extension to
the Standard Model, quark-lepton symmetry is achieved by introducing a gauged
`leptonic colour' symmetry which is spontaneously broken above the electroweak
scale. If this breaking occurs at the TeV scale, then we expect new physics to
be discovered at the LHC. We examine three areas of interest: the Z heavy
neutral gauge boson, charge exotic leptons, and a colour triplet
scalar diquark. We find that the LHC has already explored and/or will explore
new parameter space for these particles over the course of its lifetime.Comment: 24 pages, 6 figure
A Preliminary Discussion of the Kinematics of BHB and RR Lyrae Stars near the North Galactic Pole
The radial velocity dispersion of 67 RR Lyrae variable and blue horizontal
branch (BHB) stars that are more than 4 kpc above the galactic plane at the
North Galactic Pole is 110 km/sec and shows no trend with Z (the height above
the galactic plane). Nine stars with Z < 4 kpc show a smaller velocity
dispersion (40 +/-9 km/sec) as is to be expected if they mostly belong to a
population with a flatter distribution. Both RR Lyrae stars and BHB stars show
evidence of stream motion; the most significant is in fields RR2 and RR3 where
24 stars in the range 4.0 < Z < 11.0 kpc have a mean radial velocity of -59 +/-
16 km/sec. Three halo stars in field RR 2 appear to be part of a moving group
with a common radial velocity of -90 km/sec. The streaming phenomenon therefore
occurs over a range of spatial scales. The BHB and RR Lyrae stars in our sample
both have a similar range of metallicity (-1.2 < [Fe/H] < -2.2). Proper motions
of BHB stars in fields SA 57 (NGP) and the Anticenter field (RR 7) (both of
which lie close to the meridional plane of the Galaxy) show that the stars that
have Z 4 kpc have a Galactic V motion that is
< -200 km/sec and which is characteristic of the halo. Thus the stars that have
a flatter distribution are really halo stars and not members of the metal-weak
thick-disk.Comment: Accepted for publication in the March 1996 AJ. 15 pages, AASTeX V4.0
latex format (including figures), 2 eps figures, 2 separate AASTeX V4.0 latex
table
Lower-hybrid waves generated by anomalous Doppler resonance in auroral plasmas
This paper describes sonic aspects of lower-hybrid wave activity in space plasmas. Lower-hybrid waves are particularly important since they can transfer energy efficiently between electrons and ions in a collisionless magnetized plasma. We consider the 'fan' or anomalous Doppler resonance instability driven by energetic electron tails and show that it is responsible for the generation of lower-hybrid waves. We also demonstrate that observations of their intensity are sufficient to drive the modulational instability.Peer reviewe
S-Matrix for AdS from General Boundary QFT
The General Boundary Formulation (GBF) is a new framework for studying
quantum theories. After concise overviews of the GBF and Schr\"odinger-Feynman
quantization we apply the GBF to resolve a well known problem on Anti-deSitter
spacetime where due to the lack of temporally asymptotic free states the usual
S-matrix cannot be defined. We construct a different type of S-matrix plus
propagators for free and interacting real Klein-Gordon theory.Comment: 4 pages, 5 figures, Proceedings of LOOPS'11 Madrid, to appear in IOP
Journal of Physics: Conference Series (JPCS
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