Evaluating the Air Force Inspection System

SAF/IG implemented the Air Force Inspection System (AFIS) in 2013 following a USAFE pilot study into its potential for implementation across the Air Force. Using responsive constructive evaluation and content analysis of interviews as a methodology, AFIS was evaluated against the objectives laid out in AFPAD13-01. 18 interviews were conducted on 4 stakeholder groups across the inspection enterprise, which resulted in 4 overarching themes: Culture Shifts, Self-Assessment, Higher Headquarters Relationships, and PAD Objectives. This research allows SAF/IG to implement changes to future versions of AFIS that incorporates views from the field

Superbubble evolution including the star-forming clouds: Is it possible to reconcile LMC observations with model predictions?

Here we present a possible solution to the apparent discrepancy between the observed properties of LMC bubbles and the standard, constant density bubble model. A two-dimensional model of a wind-driven bubble expanding from a flattened giant molecular cloud is examined. We conclude that the expansion velocities derived from spherically symmetric models are not always applicable to elongated young bubbles seen almost face-on due to the LMC orientation. In addition, an observational test to differentiate between spherical and elongated bubbles seen face-on is discussed.Comment: 25 pages, 7 figures, accepted to ApJ (September, 1999 issue

Gravitational wave background from rotating neutron stars

The background of gravitational waves produced by the ensemble of rotating neutron stars (which includes pulsars, magnetars and gravitars) is investigated. A formula for \Omega(f) (commonly used to quantify the background) is derived, properly taking into account the time evolution of the systems since their formation until the present day. Moreover, the formula allows one to distinguish the different parts of the background: the unresolvable (which forms a stochastic background) and the resolvable. Several estimations of the background are obtained, for different assumptions on the parameters that characterize neutron stars and their population. In particular, different initial spin period distributions lead to very different results. For one of the models, with slow initial spins, the detection of the background can be rejected. However, other models do predict the detection of the background by the future ground-based gravitational wave detector ET. A robust upper limit for the background of rotating neutron stars is obtained; it does not exceed the detection threshold of two cross-correlated Advanced LIGO interferometers. If gravitars exist and constitute more than a few percent of the neutron star population, then they produce an unresolvable background that could be detected by ET. Under the most reasonable assumptions on the parameters characterizing a neutron star, the background is too faint. Previous papers have suggested neutron star models in which large magnetic fields (like the ones that characterize magnetars) induce big deformations in the star, which produce a stronger emission of gravitational radiation. Considering the most optimistic (in terms of the detection of gravitational waves) of these models, an upper limit for the background produced by magnetars is obtained; it could be detected by ET, but not by BBO or DECIGO.Comment: 25 pages, 15 figure

Charged Higgs boson contribution to ντN→τ−X\nu_{\tau} {\cal N} \to \tau^- X for very large tan⁡β\tan\beta in the two Higgs doublet model with UHE-neutrinos

We study the deep inelastic process $\nu_{\tau} + {\cal N} \to \tau^{-} + X$ (with ${\cal N} \equiv (n+p)/2$ an isoscalar nucleon), in the context of the two Higgs doublet model {\it type two} (2HDM(II)). In particular, we discuss the contribution to the total cross section of diagrams, in which a charged Higgs boson is exchanged. We show that for large values of $\tan\beta$ such contribution for an inclusive dispersion generated through the collision of an ultrahigh energy tau-neutrino on a target nucleon can reach up to 57% of the value of the contribution of the $W^+$ exchange diagrams (i.e. can reach up to 57% of the standard model (SM) prediction) and could permit to distinguish between the SM and the 2HDM(II) predictions at the Pierre Auger Observatory.Comment: 10 pages, 5 figure

Existence of invariant manifolds for coupled parabolic and hyperbolic stochastic partial differential equations

An abstract system of coupled nonlinear parabolic-hyperbolic partial differential equations subjected to additive white noise is considered. The system models temperature dependent or heat generating wave phenomena in a continuum random medium. Under suitable conditions, the existence of an exponentially attracting random invariant manifold for the coupled system is proved, and as a consequence, the system can be reduced to a single stochastic hyperbolic equation with a modified nonlinear term. Finally it is also proved that this random manifold converges to its deterministic counterpart when the intensity of noise tends to zero

Empowering and Disempowering Motivational Coaching Climate: A Scoping Review

The multidimensional model of empowering and disempowering coach climates has great relevance within the scope of intervention in the context of Sport Psychology. This scoping review of studies summarizes the scientific production of the empowering and disempowering motivational climates. The search comprised the Web of Science, Scopus, Psycinfo, and Pubmed databases for English, Portuguese, and Spanish articles published between 2013 and 2022. A total of 44 articles were found, of which 22 were included in the present study: 16 concerned cross-sectional studies, four were psychometrics validation studies, one involved a transversal cohort study, and one included a qualitative study. The questionnaire EDMCQ-C (Coach-created Empowering and Disempowering Motivational Questionnaire) is the most used and with the necessary psychometric qualities when it comes to assessing the empowering and disempowering motivational climates and their various impacts. We describe results concerning the measurement, antecedents, and effects of empowering and disempowering coach climates. Future research should invest in the study of empirical evidence that could be added to the existing nomological framework, considering antecedents, development, direct and indirect effects, moderating effects, aggregated effects, and qualitative studies.info:eu-repo/semantics/publishedVersio