is 3 to 4 times larger than the observed strength to mixed-symmetry $1^+$ states around 3 MeV [@Fransen1; @Fransen2], and in case of an $E2$ strength, $B(E2)\simeq 15000~e^2$fm$^4$ which is 5 to 15 times the strength of the (de)excitation of the first $2^+$ states in the even Mo isotopes.

Recent results on $^{60}$Ni investigated with the two-step cascade method applied on $(p,2\gamma)$ data [@Alex_Ni], indicate that there is an upbend in the $M1$ component of the RSF and possibly also in the $E1$ component. However, one should note that this specific nucleus has only positive-parity states below $E_x \approx 4$ MeV, and one of the conclusions in Ref. [@Alex_Ni] is in fact that the low-energy enhancement is probably due to secondary $M1$ transitions in this excitation-energy region, while the Oslo results reveal the RSF in the quasi-continuum region above $E_x \approx 4$ MeV. Thus, the multipolarity and the electromagnetic character of the upbend in other cases are still unknown. Although we cannot exclude any of the above-mentioned posibilities, we will assume that it can be associated with $E1$ $\gamma$-ray transitions for the nuclei studied in this work.

For the Mo case, additional information exists for the strength function below the 