Residual Local Supersymmetry and the Soft Gravitino.

We show that there exists an infinite tower of fermionic symmetries in pure d=4, N=1 supergravity on an asymptotically flat background. The Ward identities associated with these symmetries are equivalent to the soft limit of the gravitino and to the statement of supersymmetry at every angle. Additionally, we show that these charges commute into charges associated with the (unextended) Bondi-Metzner-Sachs (BMS) group, providing a supersymmetrization of the BMS translations.

Subleading soft theorem in arbitrary dimensions from scattering equations.

We investigate the new soft graviton theorem recently proposed by Cachazo and Strominger. We use the Cachazo-He-Yuan formula to prove a universal behavior for both Yang-Mills theory and gravity scattering amplitudes at the tree level in arbitrary dimension.

Consensus statement on round window vibroplasty.

OBJECTIVE: This study aimed to review current knowledge regarding implantation of the Vibrant Soundbridge floating mass transducer (FMT) at the round window (round window vibroplasty) as well as to form a consensus on steps for a reliable, stable surgical procedure. DATA SOURCES: Review of the literature and experimental observations by the authors. CONCLUSION: Round window (RW) vibroplasty has been established as a reliable procedure that produces good and stable results for patients with conductive or mixed hearing loss. The experience gained over the past few years of the authors' more than 200 implantations has led to consensus on several key points: (1) a wide and bloodless access to the middle ear with facial nerve monitoring, (2) the careful and correct identification and exposure of the round window membrane, (3) a good setup for efficient energy transition of the FMT, namely, perpendicular placement of the FMT with no contact to bone and the placement of cartilage behind the FMT to create a preloaded "spring" function, and (4) 4 points of FMT fixation: a rim of the round window bony overhang left intact both anterior and posterior to the FMT, conductor link stabilization, and cartilage behind the FMT. In addition, the FMT should be covered with soft tissue.

Bonus Yangian symmetry for the planar S matrix of N=4 supersymmetric Yang-Mills theory.

Recent developments in the determination of the planar S matrix of N=4 super Yang-Mills are closely related to its Yangian symmetry. Here we provide evidence for a yet unobserved additional symmetry: the Yangian level-one helicity operator.