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Many undergraduates use research internships to gain experience for graduate school. Science, technol- ogy, engineering, and mathematics (STEM) programs involve heavy research and lab work duties, for which students are often unprepared and lack opportunities for practice. Evidence supports Undergraduate Research Experience (URE) pro- grams’ ability to improve retention in STEM, but research has not conclu- sively identified what students need to do to excel in these programs. This analysis used a multimethod approach to identify and quantify student-to-student peer advice from six cohorts of a summer STEM URE. We identified six themes in the advice from exit surveys: proactively man- age time, communicate with your team, motivate yourself, be diligent, have fun, and accommodate changes in lifestyle. Each theme included between three and five subthemes that demonstrated nuance within the larger themes. Navigating the expectations of a URE is a complicated endeavor, but participants who are close to the experience provide rich descriptions to aid adjustment. Developing strategies for time management and team communication are most important, followed by motivation, work ethic, enjoyment, and practical adjustments. 

Exotic superconductivity, such as high TC, topological, and heavy-fermion superconductors, often rely on phase sensitive measurements to determine the underlying pairing. Here we investigate the proximity-induced superconductivity in nanowires of SnTe, where a s±is′ superconducting state is produced that lacks the time-reversal and valley-exchange symmetry of the parent SnTe. A systematic breakdown of three conventional characteristics of Josephson junctions -- the DC Josephson effect, the AC Josephson effect, and the magnetic diffraction pattern -- fabricated from SnTe nanowire weak links elucidates this novel superconducting state. Further, the AC Josephson effect reveals evidence of a Majorana bound state, tuned by a perpendicular magnetic field. This work represents the definitive phase-sensitive measurement of novel s±is′ superconductivity, providing a new route to the investigation of fractional vortices, topological superconductivity, topological phase transitions, and new types of Josephson-based devices. 

Abstract A new approach to control the n‐doping reaction of organic semiconductors is reported using surface‐functionalized gold nanoparticles (f‐AuNPs) with alkylthiols acting as the catalyst only upon mild thermal activation. To demonstrate the versatility of this methodology, the reaction of the n‐type dopant precursor N‐DMBI‐H with several molecular and polymeric semiconductors at different temperatures with/without f‐AuNPs, vis‐à‐vis the unfunctionalized catalyst AuNPs, was investigated by spectroscopic, morphological, charge transport, and kinetic measurements as well as, computationally, the thermodynamic of catalyst activation. The combined experimental and theoretical data demonstrate that while f‐AuNPs is inactive at room temperature both in solution and in the solid state, catalyst activation occurs rapidly at mild temperatures (~70 °C) and the doping reaction completes in few seconds affording large electrical conductivities (~10–140 S cm⁻¹). The implementation of this methodology enables the use of semiconductor+dopant+catalyst solutions and will broaden the use of the corresponding n‐doped films in opto‐electronic devices such as thin‐film transistors, electrochemical transistors, solar cells, and thermoelectrics well as guide the design of new catalysts.