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A mukbang ("eating broadcast") is a form of online video entertainment originating in South Korea, where the host eats a large amount of food while interacting with viewers. Recently, mukbang watching has been gaining popularity across the world. A number of studies have suggested that a minority of mukbang watchers may engage in the behavior excessively, problematically and/or addictively. However, there is still a dearth of studies examining the motivational and psychological correlates and health consequences (mental and physical) of problematic mukbang watching. The purpose of the present study was to investigate the relationship of presence and escapism with problematic mukbang watching. Path analysis indicated that social presence associated with problematic mukbang watching, while spatial presence was not.

Magnetic dipole moments of the negative parity light and heavy tensor mesons are calculated within the light cone QCD sum rules method. The results are compared with the positive parity counterparts of the corresponding tensor mesons. The results of the analysis show that the magnetic dipole moments of the negative parity light mesons are smaller compared to those of the positive parity mesons. Contrary to the light meson case, magnetic dipole moments of the negative parity heavy mesons are larger than the ones for the positive parity mesons.

The form factors of the $$\Lambda _{b} \rightarrow N^*\ell ^+ \ell ^-$$ Λb→N∗ℓ+ℓ- decay are calculated in the framework of the light cone QCD sum rules. In the calculations the contribution of the negative parity $$\Lambda _b^*$$ Λb∗ baryon is eliminated by constructing the sum rules for different Lorentz structures. Furthermore the branching ratio of the semileptonic $$\Lambda _b \rightarrow N^*\ell ^+ \ell ^-$$ Λb→N∗ℓ+ℓ- decay is calculated. The numerical study for the branching ratio of the $$\Lambda _{b} \rightarrow N^*\ell ^+ \ell ^-$$ Λb→N∗ℓ+ℓ- decay indicates that it is quite large and could be measurable at future planned experiments to be conducted at LHCb.

Form factors of the rare Λb(Λb*)→Nℓ+ℓ− decays are calculated in the framework of the light cone QCD sum rules by taking into account the contributions from the negative parity baryons. Using the obtained results on the form factors, the branching ratios of the considered decays are estimated. The numerical survey for the branching ratios of the Λb→Nℓ+ℓ− and Λb*→Nℓ+ℓ− decays indicate that these transitions could be measurable in LHCb in near future. Comparison of our predictions on the form factors and branching ratios with those existing in the literature is also performed.

The light cone sum rules method is used in studying the radiative decays $\Sigma_Q \to \Lambda_Q \gamma$ and $\Xi^\prime_Q \to \Xi_Q \gamma$. Firstly, the sum rules for the form factor $F_2(Q^2=0)$ responsible for these transitions is constructed. Using this result the decay widths of the above--mentioned decays are calculated and analyzed. A comparison of our predictions on the decay widths of considered transitions with the predictions of the other approaches is presented., Comment: 13 pages, no figures, LaTeX formatted

The magnetic moment of the $\Lambda \to \Sigma^0$ transition between negative parity, baryons is calculated in framework of the QCD sum rules approach, using the general form of the interpolating currents. The pollution arising from the positive--to--positive, and positive to negative parity baryons are eliminated by constructing the sum rules for different Lorentz structures. Nonzero value of the considered magnetic moment can be attributed to the violation of the $SU(3)$ symmetry., Comment: 7 pages, no figures, LaTeX formatted

The $\Sigma$--$\Lambda$ mixing angle is calculated in framework of the QCD sum rules. We find that our prediction for the mixing angle is $(1.00\pm 0.15)^0$ which is in good agreement with the quark model prediction, and approximately two times larger than the recent lattice QCD calculations., Comment: 5 pages, no figures, LaTeX formatted

The strong coupling constant g kappa (0)*kappa pi of the scalar K-0* meson decay to K pi is calculated in light cone QCD sum rule. The predicted value of the coupling constant g kappa (0)*kappa pi is in a good agreement with the experimental result.