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The CMS Inner Tracker, in the High Luminosity LHC (HL-LHC) phase, will be instrumented with approximately $13 \times 10^3$ CMS Readout Chips (CROCs). This integrated circuit has been developed by the RD53 Collaboration in order to work reliably in the high hit rates and radiation doses of HL-LHC. The CMS Readout Chip includes a novel powering scheme, a very complex digital circuitry, and a low power analogue front-end. The first batch of prototype CROC wafers has been received in the third quarter of 2021 and several wafers have been tested in 2022 with the wafer-level testing (WLT) setup developed at INFN Torino. The WLT data are being used to produce prototype detector modules, to characterise the CROC v1 before the submission of the final version of the chip, and to estimate wafer yields. This paper describes the wafer-level testing apparatus and the major results obtained in the first waferprobing campaign.

Peridynamics is a recently proposed continuum theory based on a non local approach and formulated with integral equations. The theory is suitable for dealing with crack propagation in solid materials. The original peridynamic formulation regarded dynamic problems and was adapted to the static case mainly using a relaxation method by introducing a substantial amount of numerical damping in the time integration. In the present work the implementation of the theory within an implicit code for static crack propagation phenomena based on the Newton-Raphson method is presented and applied to several examples of static crack propagation equilibrium problems. Results obtained with the newly developed procedure are presented for various structural configurations, with different boundary and load conditions and quantitatively compared to published data.

Although medical ultrasound offers compelling opportunities to improve therapy in principle, progress in the field has been limited because of an insufficient understanding of the potential genotoxic and cytotoxic effects of ultrasound on biological systems. This paper is mainly focused on an in vitro study of effects with respect to genotoxicity and viability induced by 1- and 3-MHz medical ultrasound in murine fibroblasts (NIH-3T3) at low-intensity exposure (spatial peak temporal average intensity Ita