Resonances in rotationally inelastic scattering of OH(X2ΠX^2\Pi) with helium and neon

We present detailed calculations on resonances in rotationally and spin-orbit inelastic scattering of OH (X\,^2\Pi, j=3/2, F_1, f) radicals with He and Ne atoms. We calculate new \emph{ab initio} potential energy surfaces for OH-He, and the cross sections derived from these surfaces compare favorably with the recent crossed beam scattering experiment of Kirste \emph{et al.} [Phys. Rev. A \textbf{82}, 042717 (2010)]. We identify both shape and Feshbach resonances in the integral and differential state-to-state scattering cross sections, and we discuss the prospects for experimentally observing scattering resonances using Stark decelerated beams of OH radicals.Comment: 14 pages, 15 Figure

Organizational identification and the communication of identity: Effects of message characteristics on cognitive and affective identification.

This paper reports an experimental study (N= 321) that tests how the cognitive and affective component of organizational identification (OI) can be affected by peripheral characteristics of organizational communication. Results show that adding cues in emails that signal organizational identity, such as the company logo, font, and colour of text, positively affect the cognitive component of OI, but not the affective component. In contrast, a personal focus in the message had a positive effect on the affective, but not on the cognitive component of OI. This study supports the idea that OI is a multi-faceted construct comprising a cognitive and affective component, and that these different components can be affected by different characteristics of organizational email messages. © 2011 The British Psychological Society

ABO(H) blood groups and vascular disease: a systematic review and meta-analysis

<i>Background</i>: Associations between vascular disease and ABO(H) blood groups have a long history, but no consensus exists regarding its magnitude and significance, or whether it relates to all disorders equally. An accurate calculation of risk would allow direct assessment of whether the effects of non-O status on thrombosis risk are of the magnitude predicted by its effect on von Willebrand factor/FVIII levels. <i>Methods</i> <i>and</i> <i>results</i>: We conducted a systematic review and meta-analysis of studies reporting associations with non-O blood groups. This gave pooled odds ratios of 1.25 [95% confidence interval (CI) 1.14–1.36] for myocardial infarction (MI), 1.03 (95% CI 0.89–1.19) for angina, 1.45 (95% CI 1.35–1.56) for peripheral vascular disease, 1.14 (95% CI 1.01–1.27) for cerebral ischemia of arterial origin, and 1.79 (95% CI 1.56 to 2.05) for venous thromboembolism (VTE). However, restriction to prospective MI studies only did not confirm the association (OR 1.01; 95% CI 0.84–1.23), although these studies may have failed to capture early-onset disease. For VTE, using a combined group of OO/A<sub>2</sub>A<sub>2</sub>/A<sub>2</sub>O as index, the combination of A<sub>1</sub>A<sub>1</sub>/A<sub>1</sub>B/BB gave an OR of 2.44 (95% CI 1.79–3.33) and A<sub>1</sub>O/ BO/A<sub>2</sub>B an OR of 2.11 (95% CI 1.66–2.68). <i>Conclusions</i>: This study confirms the historical impression of linkage between some vascular disorders and non-O blood group status. Although the odds ratios are similar to those predicted by the effect of ABO(H) on von Willebrand factor levels, further work is required to assess risk prospectively and to refine the effect of reducing O(H) antigen expression on thrombosis. However, as non-O and particularly A<sub>1</sub>A<sub>1</sub>, A<sub>1</sub>B, BB constitute a significant proportion of the population attributable fraction of VTE, there may be a role for more widespread adoption of ABO(H) typing in testing strategies

Feelings of pride and respect as drivers of ongoing member activity on crowdsourcing platforms

Crowdsourcing platforms are online organizations that organize work by sourcing tasks to their members. As participation on crowdsourcing platforms is completely voluntary, getting members to actively participate in tasks on an ongoing basis is essential for the survival of these online platforms. Why members would be active on an ongoing basis, however, is currently not well understood. To understand ongoing member activity on crowdsourcing platforms, we build on the group engagement model, which postulates that feelings of pride and respect influence engagement because they foster identification with the group. We argue that, although in general the nature of crowdsourcing platforms limits the effects of identification processes on member behaviour, feelings of pride and respect will still play central roles in such online organizations, because feelings of pride and respect can directly drive members’ cooperative behaviors towards the platform organization. Moreover, we posit that the way in which platform organizations communicate with their members affects these feelings of pride and respect. We test these ideas in a longitudinal, multisource field study and find that feelings of pride drive ongoing member activity on an online crowdsourcing platform directly and that platform management can increase members’ feelings of pride and respect by engaging in specific organizational communication practices