This article describes the development and validation of the OperationalPolice Stress Questionnaire (PSQ-Op) and the Organizational Police Stress Questionnaire (PSQ-Org). In Study 1, a series of focus groups were used to elicit the most common stressors associated with policing. During this study, it became apparent that officers separated their stressors into two general categories: operational and organizational. In the following three studies, the PSQ-Op and PSQ-Org were assessed for reliability and validity. The findings showed that both forms of the PSQ were reliable and demonstrated construct validity (correlations between perceived stress and frequency), discriminant validity (compared with general life stressors), and concurrent validity (compared with job satisfaction measures).

References, listed in Section 8, are sorted into normative and information references. Normative references, listed in Section 8.1, are in the form [nXX]. Informative references, listed in Section 8.2, are in the form [iXX]. Section contains acknowledgements. Following Section 9, contains the Appendix, the contact information for the authors, the intellectual property information, and the copyright information for this document.

Modafinil is an alerting substance that is considered safer than amphetamine with fewer side effects. Although modafinil has been used successfully to treat narcolepsy, relatively little is known about its ability to ameliorate fatigue and declines in mental performance due to sleep deprivation (SD) in a normal population. Forty-one military subjects received either 300 mg of modafinil, 20 mg of d-amphetamine, or placebo on 3 separate occasions during 64 hours of continuous cognitive work and sleep loss. Three drug treatments were given: at 23.30 hours and 05.30 hours during the first and second SD nights, respectively, and once at 15.30 hours during the third day of continuous work. Subjective estimates of mood, fatigue and sleepiness, as well as objective measures of reaction time, logical reasoning and short-term memory clearly showed better performance with both modafinil and amphetamine relative to placebo. Both modafinil and amphetamine maintained or increased body temperature compared to the natural circadian cycle observed in the placebo group. Also, from subject debriefs at the end of the study, modafinil elicited fewer side-effects than amphetamine, although more than the placebo group. Modafinil appears to be a good alternative to amphetamine for counteracting the debilitating mood and cognitive effects of sleep loss during sustained operations.

Historically, attitude theory and research has assumed that attitudes are largely unconflicted and unidimensional summary statements of feelings and beliefs. More recent work has reexamined this assumption (Thompson, Zanna, & Griffin, in press). The present article details two studies that continue to investigate this notion, examining antecedent variables assumed important in the genesis of attitudinal ambivalence. The first study focuses upon personality-based factors such as individuals' Need for Cognition (NFC) and Personal Fear of Invalidity (PFI) (a heightened concern with error). The pattern of results was consistent with our predictions: High NFC was associated with less ambivalence and high PFI was associated with greater ambivalence. The second study investigated a domain-specific antecedent. It was predicted that higher involvement would reduce the level of ambivalence experienced. Further, involvement was expected to moderate the effect of the personality-based antecedents. Again, results confirmed our hypotheses. High NFC was associated with less ambivalence, especially under conditions of high involvement with the issues. Conversely, high PFI individuals who were highly involved with these issues experienced more ambivalence. These results are discussed in terms of their implications for attitude theory.

For military personnel, the post-deployment period can be associated with changes affecting their quality of life, the quality of their close relationships, and their attitudes concerning their military careers. There is, however, little published research concerning this process, and a major weakness of the previous work is the lack of an established measuring instrument. This article describes the development of the Army Post-deployment Reintegration Scale assessing the attitudes of military personnel in three key areas. Study 1 found support for a multidimensional model of post-deployment reintegration attitudes. Study 2 refined the dimensionality of the model to the positive and negative aspects of personal, family, and work reintegration and reduced the length of the scale to 36 items and provided preliminary evidence of its factorial validity and internal consistency reliabilities. Finally, in Study 3, the subscales were correlated in predicted ways with personal-and organizational-level outcomes (e.g., posttraumatic stress disorder [PTSD], organizational commitment).

The major emphasis of public key infrastructure has been to provide a cryptographically secure means of authenticating identities. However, procedures for authorizing the holders of these identities to perform specific actions still need additional research and development. While there are a number of proposed standards for authorization structures and protocols such as KeyNote, SPKI, and SAML based on X.509 or other key-based identities, none have been widely adopted. As part of an effort to use X.509 identities to provide authorization in highly distributed environments, we have developed and deployed an authorization service based on X.509 identified users and access policy contained in certificates signed by X.509 identified stakeholders. The major goal of this system, called Akenti, is to produce a usable authorization system for an environment consisting of distributed resources used by geographically and administratively distributed users. Akenti assumes communication between users and resources over a secure protocol such as transport layer security (TLS) to provide mutual authentication with X.509 certificates. This paper explains the authorization model and policy language used by Akenti, and how we have implemented an Apache authorization module to provide Akenti authorization.

Exposure to PMIEs during deployments is common and represents an independent risk factor for past-year PTSD and MDD. Improved training that targets moral-ethical dilemmas and treatment interventions that address moral injury expressions is warranted.

One of the high-level goals of Galactic archaeology is chemical tagging of stars across the Milky Way to piece together its assembly history. For this to work, stars born together must be uniquely chemically homogeneous. Wide binary systems are an important laboratory to test this underlying assumption. Here, we present the detailed chemical abundance patterns of 50 stars across 25 wide binary systems comprised of main-sequence stars of similar spectral type identified in Gaia DR2 with the aim of quantifying their level of chemical homogeneity. Using high-resolution spectra obtained with McDonald Observatory, we derive stellar atmospheric parameters and precise detailed chemical abundances for light/odd-Z (Li, C, Na, Al, Sc, V, Cu), α (Mg, Si, Ca), Fe-peak (Ti, Cr, Mn, Fe, Co, Ni, Zn), and neutron capture (Sr, Y, Zr, Ba, La, Nd, Eu) elements. Results indicate that 80 per cent (20 pairs) of the systems are homogeneous in [Fe/H] at levels below 0.02 dex. These systems are also chemically homogeneous in all elemental abundances studied, with offsets and dispersions consistent with measurement uncertainties. We also find that wide binary systems are far more chemically homogeneous than random pairings of field stars of similar spectral type. These results indicate that wide binary systems tend to be chemically homogeneous but in some cases they can differ in their detailed elemental abundances at a level of [X/H] ∼ 0.10 dex, overall implying chemical tagging in broad strokes can work.