Range Extensions in North American Hispinae (Coleoptera: Chrysomelidae)

Thirty-nine new state or provincial records are presented for 22 species of North American Hispinae

Generic reassignment of species in the tribe Cephaloleiini Chapuis, 1875 (Coleoptera: Cassidinae)

Thirty-one species of Cephaloleiini are assigned to new genera, creating new combinations: 19 to Parimatidium Spaeth, 10 to Stilpnaspis Weise, and two to Demotispa Baly. Demotispa peruana membrata Uhmann, 1957 is raised to full species status. As the transfer of Cephaloleia limbatum Pic to Demotispa creates a homonymy, the species is renamed Demotispa pici nomen novum

Advanced Fenton processing of aqueous phenol solutions:a continuous system study including sonication effects

Our previous report based on a batch reactor system for the Advanced Fenton Process (AFP) showed that pH, hydrogen peroxide and the organic substances treated are among the most important factors affecting the oxidation efficiency. As an extended study towards its commercialisation, this paper reports the effects of the main process parameters including those relating to a new AFP flow-through system. In order to systemise and correlate the results, the Taguchi experimental design method was used. Total organic carbon (TOC) removal was utilised as the measure of the oxidation efficiency and it was found that the removal of phenol from aqueous solution at pH 2.0 and 2.5 was very similar but hydrogen peroxide supply significantly affected the TOC removal with the change of flow rate from 14.4 mL/hr to 60 mL/hr. Also, the initial concentration of phenol was a highly significant factor, with higher concentrations resulting in a lower TOC removal rate. The temperature effects in the range of 14 °C to 42 °C were investigated and it was found that there was accelerated oxidation of phenol in the early stages but after 90 minutes there was no significant difference between the results. Sonication with a bath type sonicator resulted in relatively small enhancements of TOC removal but further studies with cup-horn and probe type sonicators showed that TOC removal increased with higher intensity of sonication on additional input of hydrogen peroxide

Noteworthy Records of Hispines from Belize (Coleoptera: Chrysomelidae)

Cephaloleia consanguinea Baly, Cephaloleia fulvolimbata Baly, Cephaloleia ruficollis Baly, Chalepus amabilis Baly, Chalepus brevicornis (Baly), Chalepus pici Descarpentries and Villiers, Microrhopala erebus (Newman), Octhispa bimaculata Uhmann, Octotoma championi Baly, Pseudispa tuberculata Staines, Sceloenopla erudita (Baly), Stenispa guatemalensis Uhmann, Sumitrosis gestroi (Weise), and Sumitrosis terminatus (Baly) (Coleoptera: Chrysomelidae: Cassidinae) are new country records of hispine chrysomelids for Belize, based on collections cited herein. These collections also document new host records for Calyptocephala gerstaeckeri Boheman (Chamaedorea tepejilote Liebm., Arecaceae), Cephaloleia consanguinea (Heliconia bourgaeana Petersen, H. collinsiana Griggs, H. latispatha Benth., H. wagneriana Petersen; Heliconiaceae), and Cephaloleia perplexa Baly (Heliconia bourgaeana, H. latispatha; Heliconiaceae)

Comparison between PI and PR Current Controllers in Grid Connected PV Inverters

This paper presents a comparison between Proportional Integral (PI) and Proportional Resonant (PR) current controllers used in Grid Connected Photovoltaic (PV) Inverters. Both simulation and experimental results will be presented. A 3kW Grid-Connected PV Inverter was designed and constructed for this research

Looked after children and youth justice:A response to recent reviews

Purpose The purpose of this paper is to provide a response to a recent government-commissioned review of residential care (Narey, 2016), and the subsequent government response (Department of Education (DfE), 2016), which minimises the correlation between the experience of being looked after and becoming involved in the youth justice system. The Narey review emphasises on the role of early adversity in looked after children’s offending behaviour but minimises the significance of experiences during and after care, and downplays the effect of policies and practices that may exacerbate looked after children’s involvement in the youth justice system. Design/methodology/approach The paper builds upon a systematic literature review conducted for the Prison Reform Trust (Staines, 2016) to demonstrate the extent of current knowledge about how risk factors, adverse experiences during and after care and the criminalisation of looked after children combine to increase the likelihood of involvement in criminal proceedings. The paper also highlights gaps in the research evidence, particularly in relation to gender and ethnicity. Findings The findings suggest that the Narey review (2016) and the government response (DfE, 2016), are misguided in their attempts to minimise the role of care in looked after children’s disproportionate representation within the youth justice system. The paper cautions against the over-simplification of a complex relationship and emphasises on the importance of recognising the intersection between different factors. Originality/value The paper uses secondary sources to develop an original argument to rebut claims within a recently published review. </jats:sec

A revision of the genus Acentroptera Guérin-Méneville, 1844 (Coleoptera: Chrysomelidae: Cassidinae)

The species of the genus Acentroptera Guérin-Méneville, 1844 are revised. Thirteen species are treated as valid and are illustrated. A neotype is designated for A. tessellata Baly. Acentroptera maculata Pic from Brazil and A. rubronotata Pic from Brazil are treated as incertae sedis. Acentroptera bita n. sp. and A. lineata n. sp. both from Panama are described as new. A key to the 13 treated species is presented. Five species appear to be associated with bromeliads (Bromeliaceae)