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São José dos Campos, Brazil

Morales G.E.,Autonomous University of Nuevo Leon | Lopez E.O.,Autonomous University of Nuevo Leon | Mullet E.,Institute of Advanced Studies
Sexuality and Disability

The attitudes towards sexual relationships among persons with learning disabilities (PLD) of parents of children without disabilities were compared with the attitudes of family caregivers (parents of PLD) and with the attitude of professional caregivers. The importance of different situational factors that may alter acceptability judgments (i.e., gender, etiology of the disability, person's present level of autonomy, use of contraceptive devices, and partner's age and possible handicap) with regards to the sexuality of PLD was examined through the use of concrete cases. All the participants lived in Mexico. The only notable difference in attitude that was observed was between parents of PLD suffering from trisomia 21 and parents of PLD suffering from a neuromotor disorder. As a result, it may be erroneous to consider parents of PLD as a homogeneous group regarding attitudes to sexuality. Three different basic philosophies regarding the expression of sexuality among PLD were observed. They were called Mainly Unacceptable (37% of the sample), Mainly Acceptable (36%), and Depending on Circumstances (27%). In this later philosophy, contraception was by far the major determinant of acceptability. © The Author(s) 2010. Source

D'Amico G.,New York University | Gobbetti R.,New York University | Kleban M.,New York University | Kleban M.,Institute of Advanced Studies | Schillo M.,New York University
Journal of Cosmology and Astroparticle Physics

Higher-form flux that extends in all 3+1 dimensions of spacetime is a source of positive vacuum energy that can drive meta-stable eternal inflation. If the flux also threads compact extra dimensions, the spontaneous nucleation of a bubble of brane charged under the flux can trigger a classical cascade that steadily unwinds many units of flux, gradually decreasing the vacuum energy while inflating the bubble, until the cascade ends in the self-annihilation of the brane into radiation. With an initial number of flux quanta Q 0≳N, this can result in N efolds of inflationary expansion while producing a scale-invariant spectrum of adiabatic density perturbations with amplitude and tilt consistent with observation. The power spectrum has an oscillatory component that does not decay away during inflation, relatively large tensor power, and interesting non-Gaussianities. Unwinding inflation fits naturally into the string landscape, and our preliminary conclusion is that consistency with observation can be attained without fine-tuning the string parameters. The initial conditions necessary for the unwinding phase are produced automatically by bubble formation, so long as the critical radius of the bubble is smaller than at least one of the compact dimensions threaded by flux. Source

Guedj M.,Mirail University | Sorum P.C.,Albany Medical College | Mullet E.,Institute of Advanced Studies
International Journal of Law and Psychiatry

Purpose: To understand how lay people and health professionals in France judge the acceptability of hospitalizing a psychiatric patient against his will. Methods: 123 lay people, 20 nurses, 5 psychologists, and 6 physicians judged the acceptability of involuntary hospitalization in each of 36 scenarios consisting of all combination of 4 factors: patient's adherence to treatment (agrees to take his medications or not); risk of suicide (none, immediate, multiple past attempts); risk of harming others (none, immediate, history of violence against others); attitude of patient's family (favorable to involuntary hospitalization or not). The judgment data were subjected to cluster analysis and subsequently to analysis of variance. Results: 4 clusters were identified and labeled according to the factors that affected judgments: Never Favorable (7 participants, with mean acceptability judgment of 1.30 on a scale of 0-10); Threat to Others (35, with mean judgment of 8.68 when risk high, 2.94 when risk low), Threat to Others or Self and Adherence (88, with mean judgment of 6.89), and Always Favorable (24, with mean judgment of 8.41). Conclusions: 95% of participants agreed that involuntary hospitalization is acceptable under certain conditions, especially - in accordance with French law - when the patient presents a risk to others. © 2011 Elsevier Ltd. Source

Good M.R.R.,Institute of Advanced Studies
International Journal of Modern Physics A

A single real scalar field of spin zero obeying the Klein-Gordon equation in flat space-time under external conditions is considered in the context of the spin-statistics connection. An imposed accelerated boundary on the field is made to become, in the far future, (1) asymptotically inertial and (2) asymptotically noninertial (with an infinite acceleration). The constant acceleration Unruh effect is also considered. The systems involving nontrivial Bogoliubov transformations contain dynamics which point to commutation relations. Particles described by in-modes obey the same statistics as particles described by out-modes. It is found in the nontrivial systems that the spin-statistics connection can be manifest from the acceleration. The equation of motion for the boundary which forever emits thermal radiation is revealed. © 2013 World Scientific Publishing Company. Source

Tian Y.,State University of New York at Buffalo | Filiatrault A.,State University of New York at Buffalo | Filiatrault A.,Institute of Advanced Studies | Mosqueda G.,University of California at San Diego
Journal of Earthquake Engineering

This second of two companion articles examines the efficiency of a number of hysteresis models to simulate the nonlinear moment-rotation behavior of sprinkler piping tee joints made of various materials and connection types. The proposed hysteresis models are capable of capturing the strength degradation, change of stiffness during unloading, as well as energy dissipation of full-scale sprinkler joints tested by the authors in a previous study. The hysteresis models were then embodied in nonlinear rotational springs at joints combined with elastic beam elements for the piping segments to capture the seismic response of full-scale fire sprinkler piping systems. These system level numerical models were validated through simulations based on the seismic tests presented in the first companion article. Nonlinear dynamic response-history analyses adequately predict the seismic response of the test specimens in terms of displacement, acceleration, and moment-rotation at the piping joints. The proposed numerical models represent a useful tool to assess the seismic demands of pressurized fire sprinkler piping systems in buildings. Copyright © A. S. Elnashai. Source

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