The magnetic moment of the first $2^{+}$ state at 558.5 keV in ${}_{}{}^{114}{}_{}{}^{}\mathrm{Cd}$ has been measured to be $\left|{\mu }_2\right|=0.88\mathrm{}\pm 0.12{\mu }_N$ by the perturbed gamma-gamma angular correlation technique utilizing the internal hyperfine field in an Fe lattice.

We examine the possibility of combining SU(3) with U(1) ($Q_K$) to obtain a nontrivial compact local Lie group whose algebra contains a maximal Abelian subalgebra spanned by $I_Z$. $Y$, and $Q_K$. If the simple Lie groups are ruled out (on physical grounds), it is shown that the only possibility remaining is a direct product SU(3) and a group containing U(1) ($Q_K$). Thus, the $Q_K$ and SU(3) assignments are not linked by the group and no nontrivial super-multiplet structures ensues.

The intensity of second harmonic light produced in reflection by a laser beam incident on silver and silicon surfaces shows a significant variation when a dc electric field is applied normal to the surface. Experimental data on the intensity, polarization, and dispersive properties of the induced surface harmonic polarization are presented and discussed.

Calculations based on a band model and interaction appropriate to crystalline Xe are reported which explicitly exhibit narrow peaks interpreted as resonances derived from saddle-point edges, as well as bound states in the energy gap. The results strongly support Phillips's explanation of resonant structure in the optical spectrum of Xe.

A sample of 762 decays $K_L\to \pi +e+\nu$ in the 80-inch hydrogen bubble chamber have been identified using electron detection by shower production in a tantalum plate. The results are consistent with vector interaction and constant form factor.

An angular momentum uncertainty relation is obtained in terms of sine and cosine operators that have a meaning even in a second-quantization formalism. For a threedimensional oscillator in coherent states the new uncertainty product is a minimum for large $\Delta L_z$. Even for small $\Delta L_z$ the uncertainty product is very small.

An effective Lagrangian for soft-pion interactions is constructed such that lowest order perturbation theory precisely reproduces the results of current algebra.

A new effect in dynamic polarization is found showing characteristics similar to those of the "solid effect" but with significant difference in the spacing between enhancement peaks. A possible explanation, ascribing it to the electron spin-spin interaction, is discussed.

The residual nmr shift in superconducting tin was measured in samples of average particle dimension between 150 and 600 Å and in samples containing up to 1 at.% Pb or In impurity. The results suggest that the dominant contribution is attributable to the Pauli paramagnetism, which is modified by spin-reversing scattering in the superconductor. In this interpretation, the results are consistent with the BCS theory of superconductivity.