Corrections of order α(Zα)m to the Lamb shift and corrections of order α3(Zα)EF to hyperfine splitting generated by the insertions of the three-loop one-particle reducible diagrams with radiative photons in the electron line are calculated. The calculations are performed in the Yennie gauge.

We calculate the one-loop non-factorizable QCD corrections to the production and decay of pairs of top quarks at various collider experiments. These non-factorizable corrections interconnect the different production and decay stages of the off-shell top-pair production processes. This in particular affects the invariant-mass distributions of the off-shell top quarks, resulting in a shift of the...

The authors of “Student Perceived and Determined Knowledge of Biology Concepts in an Upper-Level Biology Course” (CBE Life Sci. Educ. [2014] 13, 322–330; doi:10.1187/cbe.13-09-0175) have made four corrections to the published paper. The corrections were made to the online full-text and pdf versions of the issue on July 24, 2014. The corrections, however, may not be reflected on other websites w...

Static deflection as well as free and forced nonlinear vibration of thin square plates made of hyperelastic materials are investigated. Two types of materials, namely rubber and soft biological tissues, are considered. The involved physical nonlinearities are described through the Neo-Hookean, Mooney-Rivlin, and Ogden hyperelastic laws; geometrical nonlinearities are modeled by the Novozhilov n...

The Lakota (Sioux) sacred clowns (heyoka) of traditional religious practice offer a glimpse of the clown phenomenon found in many of the world's indigenous traditions. By illustrating the unified Lakota and Western conceptions of humor, the logic of how particular entities of the natural environment are understood as relatives according to Lakota thought is brought to light in hopes of introduc...

We discuss radiative corrections to an atomic two-level system subject to an intense driving laser field. It is shown that the Lamb shift of the laser-dressed states, which are the natural state basis of the combined atom-laser system, cannot be explained in terms of the Lamb shift received by the atomic bare states which is usually observed in spectroscopic experiments. In the final part, we p...

  Abstract   Background: Irregular Working hours, including night work and shift work, have been   found to be associated with alteration in various levels of biochemical factors. And some studies have showed association between shift work and blood biochemical disturbances in blood. In this epidemiological study we investigated, whether regular schedule of working hours can minimize the associ...