International audienceSettlement-stage larvae of the widespread apogonid Gymnapogon urospilotus are described and illustrated fromspecimens captured with crest nets at Moorea, Society Islands. Identification was confirmed by COI mitochondrial DNAanalysis. Otoliths of the larvae had no settlement mark, indicating they had not previously settled, and 33–40 presumeddaily rings. The larvae are transparent with large orange/red blotches on the tail, and limited melanophores on headand pelvic fins. The larvae have very long pelvic-fin rays (40–50% standard length [SL]) with black tips and contrastingwhite bands, and limited inter-ray membranes. They are apparently unique among teleost fishes in having a stronglyserrate urohyal. These serrations disappear after settlement. Critical speed of the larvae was measured in a swimmingchamber. Larvae of G. urospilotus are the largest (19–24 mm SL), oldest (33–40 days), and fastest (.36 cm s21) knownapogonids at settlement. Photos of larvae of G. urospilotus from Guam, Ryukyu Islands, and Indonesia reveal they swim2–3 m above coral reefs at night with the pelvic rays spread wide, presumably looking for settlement habitat. They arevery conspicuous and may be mimicking small lionfish. In contrast, adults have never been seen alive on the reef. Thelargest reported adult G. urospilotus is 37mmSL, which implies that this species undergoes amajor portion of its growthas a pelagic larva, a life history pattern that also occurs in some reef gobiids

AAPA 2022 POSTER SESSION ABSTRACTS PURPOSEDuring the COVID-19 pandemic, more than 10,000 physician associates/assistants (PAs), about 7% of the PA population, were redeployed to EDs, ICUs, and other medical specialties. Because of increased patient volume, healthcare workers experienced greater degrees of stress than the general population. A cross-sectional study found a positive correlation between resilience and one's wellbeing. Another found that gritty individuals are less vulnerable to the effects of stressful events. This exploratory study examined whether a relationship exists between grit (defi ned as perseverance and passion for goals) and well-being (defi ned as overall happiness) in PAs redeployed during the peak of the pandemic. METHODSThis study was approved by the Wagner College institutional review board. An a priori power analysis (G*Power 3.1.9.7) revealed a minimum sample size of 136 respondents at 0.8 power and 0.05 alpha. Inclusion criteria were certifi ed PAs who fi nish the survey; redeployed from their original specialty into EDs, ICUs, COVID-medical units from March 2020 to December 2020; and worked there for more than 2 weeks. They were recruited by email and social media platforms to answer an electronic survey of 17 demographic items, 12 grit items (validated Duckworth Grit Scale, measures interest consistency

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Die 1986 von Alexander Müller und Georg Bednorz entdeckten Hochtemperatur‐Supraleiter unterscheiden sich charakteristisch von den herkömmlichen supraleitenden Materialien. Diese keramischen Substanzen sind nicht homogen, sondern besitzen eine sandwichartige Kristallstruktur: elektrisch leitende Kupferoxidebenen wechseln sich mit isolierenden Schichten ab. Paul Müller vom Walther‐Meißner‐Institut für Tieftemperatur‐Physik in München wies nach, daß sich die supraleitenden Kristalle von Wismut‐ und Thalliumkupraten auf Grund dieser Schichtstruktur wie Stapel von Josephson‐Kontakten verhalten.

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