826 research outputs found
Male Sexual Orientation Among Religious Men: A Discriminant Function Analysis
The ecological changes of human society especially in Western civilization via scientific, industrial, and technological revolutions have altered the foundations of what masculinity means in the l.990\u27s. This study was designed to discriminate and predict three masculine sexual orientation groups based upon father-son relations, gender, religious spirituality, psychological maltreatment/abuse, and shame. Data were obtained from 92 male volunteer participants (gay=32, heterosexual=32, x-gay=28) who identify as Christians or who affiliate with a Christian organization. Instruments used were the Boyhood Gender conformity Scale (BGCS), the Father Forgiveness Perception Scale (FFPS), the Home Environment Questionnaire (HEQ) (i.e., Child Abuse Trauma Scale), Internalized Shame Scale (ISS), the Klein Sexual Orientation Grid (KSOG), the Parental Acceptance-Rejection Questionnaire (PARQ), the Personal Information Questionnaire (PIQ), the Religious Identification and Commitment Scale (RICS), and the Sexual Trauma Scale (STS). The KSOG, PIQ, and group affiliation provided three criterion variables. Total scores on the BGCS, HEQ, ISS, PARQ, and RICS provided five predictor variables. The PIQ provided demographic information for descriptive analysis, group profiles, and group homogeneity. The PIQ and two experimental scales (FFPS & STS) added alternative predictors. Two discriminant functions were generated. The first function, Wilks\u27 Lambda = .39, Chi Square (10) 67.43, R \u3c .001, accounted for 61% of the variance of group membership. The second function, Wilks\u27 Lambda .68, Chi Square (4) = 28.01, R \u3c .001 accounted for 39% of the variance of group membership. The BGCS, ISS, and HEQ were related to the first function. The RICS and PARQ were related to the second function. The BGCS exerted the strongest influence of the first discriminant function, ;n:=.87. The RICS exerted the strongest influence on the second discriminant function, n=.so. The first function discriminated between heterosexual subjects and the other two groups. The second function discriminated between the gay and x-gay subjects. Overall the two discriminant functions correctly classified the participants 77% of the time versus about 35% chance classification. Sixty-nine percent (n=22) of the gay participants, 84% (n=27) of the heterosexual participants, and 79% (n=22) of the gay participants were correctly classified. The findings indicate that boyhood masculine gender nonconformity is a strong indicator of adult homosexuality (gay & x-gay) and that high Christian religious commitment and identity is a strong indicator of the x-gay homosexual population
Born-Regulated Gravity in Four Dimensions
Previous work involving Born-regulated gravity theories in two dimensions is
extended to four dimensions. The action we consider has two dimensionful
parameters. Black hole solutions are studied for typical values of these
parameters. For masses above a critical value determined in terms of these
parameters, the event horizon persists. For masses below this critical value,
the event horizon disappears, leaving a ``bare mass'', though of course no
singularity.Comment: LaTeX, 15 pages, 2 figure
Development of a Dynamic Investment Strategy under Alternative Inflation Cycle Scenarios
Inflation and inflation cycles have been a major underlying reason for the financial successes and failures of real estate investors in recent history. These cycles have complex impacts on cash flow variables and thus on real estate returns and investment values. This study presents a decision framework and operational model to project investment returns for alternative inflation cycle scenarios and demonstrates their application for developing a dynamic real estate investment strategy. Such a strategy provides for portfolio revisions during different stages of the inflation cycle and assumes that investors seek to maximize expected "real" rates of return and hence owner's wealth. A probabilistic discounted cash flow model is designed and used to inflation-adjust each cash flow variable affected. Mathematical relationships are developed for specifying unique cash flow variable linkages and sensitivities, with lead and lag periods consistent with empirical evidence of timing of inflation impacts. Finally strategic implications for acquisition and disposition policy are discussed.
Hypoxic modulation of exogenous nitrite-induced vasodilation in humans
Peer reviewedPublisher PD
Broadening of Spectral Lines due to Dynamic Multiple Scattering and the Tully-Fisher Relation
The frequency shift of spectral lines is most often explained by the Doppler
Effect in terms of relative motion, whereas the Doppler broadening of a
particular line mainly depends on the absolute temperature. The Wolf effect on
the other hand deals with the correlation induced spectral change and explains
both the broadening and shift of the spectral lines. In this framework a
relation between the width of the spectral line is related to the redshift z
for the line and hence with the distance. For smaller values of z a relation
similar to the Tully-Fisher relation can be obtained and for larger values of z
a more general relation can be constructed. The derivation of this kind of
relation based on dynamic multiple scattering theory may play a significant
role in explaining the overall spectra of quasi stellar objects. We emphasize
that this mechanism is not applicable for nearby galaxies, .Comment: 18 pages, 5 figures, revised Version has been submitted to Physical
Review A. (2nd author's affiliation corrected
Engaging residents to choose wisely: Resident Doctors of Canada resource stewardship recommendations
Background: Resident doctors are integral to healthcare delivery in Canada. Engaging residents in resource stewardship is important for professional development, but also as they are drivers of healthcare resource use. To date, no national resident-specific resource stewardship guideline has been developed. Resident Doctors of Canada (RDoC) in collaboration with Choosing Wisely Canada (CWC) sought to develop an evidence-informed, consensus-based list of five recommendations to promote resource stewardship. Methods: RDoC convened a taskforce with diverse geographic and specialty representation to develop candidate recommendations targeting resident resource stewardship behaviours using a consensus-based process, supported by a literature review. Residents across the country provided feedback on the candidate recommendations via an online questionnaire. The taskforce used this feedback to finalize the list.Results: The taskforce prepared 28 candidate recommendations for consideration. A detailed literature review and consensus process narrowed this list to 12 candidate recommendations for consultation. A total of 754 residents (754/10,068 residents = 7.5%) representing all provinces and levels of residency training reviewed and ranked the candidate recommendations. The highest-ranked recommendations comprised the final list.Conclusion: Resident doctors are willing and able to demonstrate leadership in advancing resource stewardship by the development of a national resident-specific list of Choosing Wisely Canada recommendations
Symmetry-Adapted Phonon Analysis of Nanotubes
The characteristics of phonons, i.e. linearized normal modes of vibration,
provide important insights into many aspects of crystals, e.g. stability and
thermodynamics. In this paper, we use the Objective Structures framework to
make concrete analogies between crystalline phonons and normal modes of
vibration in non-crystalline but highly symmetric nanostructures. Our strategy
is to use an intermediate linear transformation from real-space to an
intermediate space in which the Hessian matrix of second derivatives is
block-circulant. The block-circulant nature of the Hessian enables us to then
follow the procedure to obtain phonons in crystals: namely, we use the Discrete
Fourier Transform from this intermediate space to obtain a block-diagonal
matrix that is readily diagonalizable. We formulate this for general Objective
Structures and then apply it to study carbon nanotubes of various chiralities
that are subjected to axial elongation and torsional deformation. We compare
the phonon spectra computed in the Objective Framework with spectra computed
for armchair and zigzag nanotubes. We also demonstrate the approach by
computing the Density of States. In addition to the computational efficiency
afforded by Objective Structures in providing the transformations to
almost-diagonalize the Hessian, the framework provides an important conceptual
simplification to interpret the phonon curves.Comment: To appear in J. Mech. Phys. Solid
Optics: general-purpose scintillator light response simulation code
We present the program optics that simulates the light response of an
arbitrarily shaped scintillation particle detector. Predicted light responses
of pure CsI polygonal detectors, plastic scintillator staves, cylindrical
plastic target scintillators and a Plexiglas light-distribution plate are
illustrated. We demonstrate how different bulk and surface optical properties
of a scintillator lead to specific volume and temporal light collection
probability distributions. High-statistics optics simulations are calibrated
against the detector responses measured in a custom-made cosmic muon tomography
apparatus. The presented code can also be used to track particles intersecting
complex geometrical objects.Comment: RevTeX LaTeX, 37 pages in e-print format, 12 Postscript Figures and 1
Table, also available at
http://pibeta.phys.virginia.edu/public_html/preprints/optics.p
Nonequilibrium and Nonlinear Dynamics in Geomaterials I : The Low Strain Regime
Members of a wide class of geomaterials are known to display complex and
fascinating nonlinear and nonequilibrium dynamical behaviors over a wide range
of bulk strains, down to surprisingly low values, e.g., 10^{-7}. In this paper
we investigate two sandstones, Berea and Fontainebleau, and characterize their
behavior under the influence of very small external forces via carefully
controlled resonant bar experiments. By reducing environmental effects due to
temperature and humidity variations, we are able to systematically and
reproducibly study dynamical behavior at strains as low as 10^{-9}. Our study
establishes the existence of two strain thresholds, the first, epsilon_L, below
which the material is essentially linear, and the second, epsilon_M, below
which the material is nonlinear but where quasiequilibrium thermodynamics still
applies as evidenced by the success of Landau theory and a simple macroscopic
description based on the Duffing oscillator. At strains above epsilon_M the
behavior becomes truly nonequilibrium -- as demonstrated by the existence of
material conditioning -- and Landau theory no longer applies. The main focus of
this paper is the study of the region below the second threshold, but we also
comment on how our work clarifies and resolves previous experimental conflicts,
as well as suggest new directions of research.Comment: 14 pages, 15 figure
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