Short form of the changes in outlook questionnaire: translation and validation of the Chinese version

Background: The Changes in Outlook Questionnaire (CiOQ) is a self-report instrument designed to measure both positive and negative changes following the experience of severely stressful events. Previous research has focused on the Western context. The aim of this study is to translate the short form of the measure (CiOQ-S) into simplified Chinese and examine its validity and reliability in a sample of Chinese earthquake survivors. Method: The English language version of the 10-item CiOQ was translated into simplified Chinese and completed along with other measures in a sample of earthquake survivors (n = 120). Statistical analyses were performed to explore the structure of the simplified Chinese version of CiOQ-S (CiOQ-SCS), its reliability and validity. Results: Principal components analysis (PCA) was conducted to test the structure of the CiOQ-SCS. The reliability and convergent validity were also assessed. The CiOQ-SCS demonstrated a similar factor structure to the English version, high internal consistency and convergent validity with measures of posttraumatic stress symptoms, anxiety and depression, coping and social support. Conclusion: The data are comparable to those reported for the original version of the instrument indicating that the CiOQ-SCS is a reliable and valid measure assessing positive and negative changes in the aftermath of adversity. However, the sampling method cannot permit us to know how representative our samples were of the earthquake survivor population

The effects of a counter-current interstitial flow on a discharging hourglass

This work experimentally investigates the effects of an interstitial fluid on the discharge of granular material within an hourglass. The experiments include observations of the flow patterns, measurements of the discharge rates, and pressure variations for a range of different fluid viscosities, particle densities and diameters, and hourglass geometries. The results are classified into three regimes: (i) granular flows with negligible interstitial fluid effects; (ii) flows affected by the presence of the interstitial fluid; and (iii) a no-flow region in which particles arch across the orifice and do not discharge. Within the fluid-affected region, the flows were visually classified as lubricated and air-coupled flows, oscillatory flows, channeling flows in which the flow preferentially rises along the sidewalls, and fluidized flows in which the upward flow suspends the particles. The discharge rates depends on the Archimedes number, the ratio of the effective hopper diameter to the particle diameter, and hourglass geometry. The hopper-discharge experiments, as well as experiments found in the literature, demonstrate that the presence of the interstitial fluid is important when the nondimensional ratio (N) of the single-particle terminal velocity to the hopper discharge velocity is less than 10. Flow ceased in all experiments in which the particle diameter was greater than 25% of the effective hopper diameter regardless of the interstitial fluid

Exchange-Rate Risk Mitigation with Price-Level-Adjusting Mortgages: The Case of the Mexican UDI

In 1995, Mexico introduced a credit system based on a price-level-adjusting unit of account called the Unidad de Inversion (UDI, pronounced “oo-dee”), which is Spanish for “unit of investment.” The Bank of Mexico maintains an UDI Index, which sets the peso value of an UDI on any given day. Loans denominated in UDIs maintain their purchasing power and provide a real rate of return in the local currency, pesos. The focus of this study is the real rate of return earned by dollar investors in UDI mortgages. Most dollar investors fear exposure to exchange rate losses in unstable currencies. In this paper, we examine the real-dollar rate of return and the extent to which the inflation adjusting aspect of the UDI mitigates the losses from currency devaluations. We also examine exchange-rate patterns relative to purchasing-power-parity to find investment strategies that increase the real-dollar rate of return on investments in Mexico’s UDI mortgages.

Driving forces in free visual search : An ethology

Peer reviewedPostprin

Attentional load interferes with target localization across saccades

Peer reviewedPostprin

Expressive writing and posttraumatic growth: an Internet-based study

This study examined the effects of Internet-based expressive writing on posttraumatic growth. Expressive (n = 14) and control writing (n = 10) participants wrote for 15 min on 3 occasions spaced 3 days apart. Measures of intrusive and avoidant thoughts and posttraumatic growth were administered at baseline and 2- and 8-week postintervention follow-ups. Results showed that posttraumatic growth significantly increased from baseline to 8-week follow-up in the expressive writing group, while there was no significant change in levels of posttraumatic growth in the control group. Intrusive and avoidant cognitions did not differ between writing groups. Analyses of language use showed that greater use of insight words was associated with an increase in posttraumatic growth. Findings are consistent with cognitive processing models of expressive writing and have implications for Internet-administered expressive writing

Editor\u27s Page

Over the past 20 years, the basic communication course has become a staple of many of general education programs. The ability to communicate effectively is viewed as a prerequisite to interpersonal relationships, success in the workplace, and meaningful participation as a citizen in our democracy. The role of the basic communication course in general education affords the discipline with substantial political capital on many campuses—administrators often look to the basic course as an ideal location for launching new initiatives and capturing important data regarding student learning outcomes. To the extent that basic course directors are able to deliver those initiatives effectively, they may earn additional access to university resources. Without question, this is an important course. For more than 20 years the Basic Communication Course Annual has been the preeminent outlet for scholarship exploring and debating the best practices for the basic course in communication and this volume continues that tradition