Scapanoclypeus Evans (Coleoptera: Scarabaeidae: Melolonthinae: Tanyproctini) was established with Trichinopus aberrans Frey designated as its type species and included five additional species: S. testaceus Evans, S. carinatus Evans, S. cornutus Evans, S. brunneus Evans, and S. aulacocoleatus Evans. Scapanoclypeus, Trichinopus Waterhouse, and Oedanomerus Waterhouse are distinguished from other African Tanyproctini by their small size (12 mm or less), reduced mouthparts, and antennae with 8-10 antennomeres (Evans 1987). Species of Scapanoclypeus and Oedanomerus have simple claws without cleft or teeth at base, a slightly conical labrum, and a third antennomere that is equal in length to the fourth; while Trichinopus has bifid claws, a distinctly conical labrum with rounded end, and the third antennomere approximately as long as the fourth (Lacroix 2007). The antennal club of Scapanoclypeus is at least three times longer than the combined length of antennomeres I-IV and the clypeal surface at nearly a right angle in relation to the plane of the frons, while Oedanomerus has an antennal club about as long as the combined length of antennomeres I-IV and coplanar clypeal and frontal surfaces (Evans 1987; Lacroix 2007; Sehnal 2013). Scapanoclypeus was subsequently mentioned in Lacroix (2007), who re-drew the figures and adopted the key from Evans (1987). Three additional species have since been described from southern Africa: S. triapicalis Sehnal, S. sinepunctatus Sehnal, and S. hardap Sehnal (see Sehnal 2013, 2014).
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http://dx.doi.org/10.11646/zootaxa.4247.5.6 | DOI Listing |
Chemistry
November 2024
School of Chemical and Physical Sciences, Victoria University of Wellington, PO Box 600, Wellington, 6012, New Zealand.
The potassium aluminyl K[Al(NON)] ([NON]=[O(SiMeNDipp)], Dipp=2,6-iPrCH) reacts with group 14 chloroamidinates E(Am)Cl (E=Ge, Sn, Pb. [Am]=[tBuC(NDipp)]) to form (NON)Al-E(Am) Lewis pairs with unsupported Al-E bonds, including the first structurally authenticated Al-Pb bond. Analysis using spectroscopic (NMR, UV-vis and Mössbauer for E=Sn), X-ray diffraction and computational (DFT, QTAIM, TD-DFT) methods conclude an Al-E σ-bond derived from a Lewis basic Al and a Lewis acidic tetrylene, with back-donation from the E s-orbital lone pair donor NBO to acceptor NBOs on Al that are derived from s/p-orbitals.
View Article and Find Full Text PDFCurr Psychiatry Rep
December 2024
Department of Pediatrics, Harvard Medical School, Boston, MA, 02115, USA.
Purpose Of Review: Substance use among adolescents and young adults remains a critical public health concern, with patterns shifting dramatically in recent years. This narrative review examines trends in substance use behaviors during and following the COVID-19 pandemic.
Recent Findings: Epidemiologic evidence shows declines in the proportion of youth who are using most substances but intensified consumption patterns with rising levels of disorder among adolescents who use substances.
BJC Rep
March 2024
Division of Cancer Sciences, School of Medical Sciences, Faculty of Biology, Medicine and Health, The University of Manchester, Wilmslow Road, Manchester, M20 4BX, UK.
Background: Weight and health behaviours impact on breast cancer risk. We describe trends in weight and health behaviours in women at entry to a specialist breast cancer family history clinic in Manchester, UK, and changes after clinic entry.
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Child Youth Care Forum
August 2024
Clinical Child Psychology Program, KU Child Behavior Lab, University of Kansas, Dole HDC Rm2012, Lawrence, KS 66045, USA.
Background: More research is needed to improve measurement selection and to better understand informant differences in reports of reactive and proactive aggression.
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J Heart Lung Transplant
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Division of Respirology, Department of Medicine, Temerty Faculty of Medicine, University of Toronto, Toronto, Ontario, Canada; Chemical Engineering & Applied Chemistry, Faculty of Applied Sciences and Engineering, University of Toronto, Toronto, Ontario, Canada; Southern Ontario Centre for Atmospheric Aerosol Research, University of Toronto, Toronto, Ontario, Canada; Toronto Lung Transplant Program, Ajmera Multi-Organ Transplant Unit, University Health Network, Toronto, Ontario, Canada. Electronic address:
Background: Exposure to air pollution post-lung transplant has been shown to decrease graft and patient survival. This study examines the impact of air pollution exposure in the first 3 months post-transplant on baseline (i.e.
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