34 research outputs found
Recommended from our members
Improving productivity and resilience at work: Assessing the use self-regulation techniques to enhance effectiveness of corporate wellness initiatives
The recognition of relationship between employee health and business profitability and reputation has resulted in a steady growth in corporate well-being programs aimed at promoting healthy lifestyle behaviors. Despite companies spending close to $800 per employee, as a substantive portion of one’s daily actions are accounted for by habitual behaviors these wellness initiatives have a limited rate of success. By applying insights from habit research, this study aimed to determine (1) if embedding a combination of mental contrasting and implementation intentions into wellness initiatives aimed at behavioral habits change among professionals could improve their efficacy; and (2) if habit change process was subject to one’s self-control. Given the global pandemic environment of 2020, the training was carried out online and took a form of an animated webinar with a nonobtrusive short questionnaire intervention. Analysis of results revealed that, contrary to expectations, there was no significant difference in the magnitude of change in habit strength over the two-week period between the intervention (n = 54) and the control (n = 56) groups. A number of possible explanations for null findings are discussed, including the breakdown in the basic context-response mechanism that underlies habit formation as a consequence of routine disruptions during COVID-19. The results also indicated that one’s self-control capacity did not affect the habit formation process, which could indicate that habit change does not operate through self-control or be another consequence of the pandemic hindering one’s ability to use situational strategies of self-control. Limitations, other potential moderators in the formation of habits, implications of these findings for health behavior change in shifting contexts and future directions for research on wellness interventions are discussed. I conclude that to promote greater adherence to health behavior targets in unstable environments one may require a more flexible and/or frequent approach to address motivation and volition, with greater emphasis on the underlying goals
Formation of isomeric states in (γ, γ′) reactions at energies around the giant dipole resonance
Spallation of
A comprehensive set of 110 radioactive nuclide cross sections with mass numbers 22 ≤ A ≤ 198 amu in the interaction of 4.4-GeV deuterons with 197Au have been measured for the first time. The results including charge distributions have been parameterized in term of a 3-parameter equation in order to reproduces the isobaric distributions. Using data from the charge distributions, the total mass-yield distribution was obtained. The new experimental data of the recoil properties of reaction products were also obtained. Kinematical characteristics of the reaction products obtained from measurements of the residuals emitted in the forward and backward directions exhibit different behavior depending on the mass region. The kinematical features of reaction products have been analyzed on the basis of the two-step model of high-energy nuclear reactions and discussed in terms of the different reaction mechanisms
NEUTRONS TRANSFER IN THE REACTION <sup>22</sup>Ne+<sup>197</sup>Au AT ENERGY REGION NEAR COULOMB BARRIER
Production of the Hf Isomer Using a 4.5GeV Electron Accelerator
Highproductivity methods are required for the accumulation of longlived isomers in amounts that are sufficient for the creation of experimental targets. A tantalum sample was activated with the Yerevan synchrotron using 4.5GeV bremsstrahlung and the presence of ^{178m2}Hf was detected with good statistical accuracy by gammaactivity measurements. The integrated and mean crosssection values were deduced from the experiment. The isomertogroundstate ratio was then estimated and compared with that known for the p+Ta reaction studied at 660 MeV. In the present experiment, both the converter and the target were relatively thin for better definition of the experimental conditions. However, an assembly designed for highproductivity irradiations should be thick and the converter can also serve as a target sample when irradiated with a highenergy electron beam. The optimization of the isomer production was solved analytically and the largest estimated yield was determined as calibrated to the experimental yield. The maximum yield of ^{178m2}Hf was found to be of about 3\cdot 10^9 nuclei/s using an electron beam current of 100 {\mu}A. This is lower than the yield achieved with proton beams, although for a practical comparison the total cost and radiation safety conditions should be considered. The present results provide a basis for numerical estimations
