Academic literature on the topic 'Cybertype'

Abstract The origin and diversification of the arthropod head is one of the major topics in the field of evolutionary morphology of Arthropoda. Among the major arthropod groups, Myriapoda and, more precisely Diplopoda, are generally poorly studied regarding their head anatomy. However, this group is of pivotal importance to understand the evolutionary functional morphology of the arthropod head. In this study, we investigate the complete musculoskeletal system of the diplopod head with a detailed description of the cephalic anatomy of the recently described species Ommatoiulus avatar. The comparison of our data with the literature on the few other species available show that the morphology of the musculoskeletal system within Juliformia, a subgroup of the Diplopoda, is relatively conservative. Using video recordings of the feeding movements in addition to the anatomical data, we revise the mechanism of the mandibular movements in Juliformia. There was a controversy whether mandibular abduction is an active process, facilitated by contraction of an abductor muscle, or if it is a passive process, mediated by tentorial and gnathochilarial movements not involving a direct abduction by muscular contraction. We show that mandibular abduction in Ommatoiulus is an active movement involving the contraction of an abductor muscle. This is similar to the mandibular abduction in other arthropod groups.

Traditionally, entomologists have used destructive methods especially dissection in order to investigate the important taxonomic characters of specimens. New technologies for imaging and analyzing in taxonomy, offer opportunities to deposit three-dimensional (3D) data to proposed for rare and valuable type materials in museums and collections. Micro-computed tomography, as a non-destructive imaging technique, has become an emerging and progressive technology in insect science. However, this technology is rarely used in entomology compared to in medical and industrial applications. In this study, MicroCT imaging protocols are explained in detail using three species of braconid wasps: Aleiodes arnoldii Tobias, 1976 (Braconidae: Rogadinae), Hormius moniliatus Nee, 1811 (Braconidae: Hormiinae) and Macrocentrus bicolor Curtis, 1833 (Braconidae: Macrocentrinae). MicroCT scan data of three braconid wasp species from Iran, depicted main identification of skeletal body parts. A brief step-by-step is provided on image acquisition, 3D reconstruction and mesh editing to create a virtual model of the species utilized for morphological and morphometric studies. As a result, the use of micro-computed tomography as a non-invasive virtual examination tool was explored. The complete datasets containing the raw TIFF MicroCT data, 3D models and 3D rotation videos available for download at http://www.morphosource.org/Detail/ProjectDetail/Show/project_id/822

The genusProceratiumRoger, 1863 contains cryptic, subterranean ants that are seldom sampled and rare in natural history collections. Furthermore, mostProceratiumspecimens are extremely hairy and, due to their enlarged and curved gaster, often mounted suboptimally. As a consequence, the poorly observable physical characteristics of the material and its scarcity result in a rather challenging alpha taxonomy of this group. In this study, the taxonomy of the ChineseProceratiumfauna is reviewed and updated by combining examinations of traditional light microscopy with x-ray microtomography (micro-CT). Based on micro-CT scans of seven out of eight species, virtual 3D surface models were generated that permit in-depth comparative analyses of specimen morphology in order to overcome the difficulties to examine physical material ofProceratium. Eight Chinese species are recognized, of which three are newly described:ProceratiumbruelheideiStaab, Xu & Hita Garcia,sp. n.andP.kepingmaisp. n.belong to theP.itoiclade and have been collected in the subtropical forests of southeast China, whereasP.shoheisp. n.belongs to theP.stictumclade and it is only known from a tropical forest of Yunnan Province.ProceratiumnujiangenseXu, 2006syn. n.is proposed as a junior synonym ofP.zhaoiXu, 2000. These taxonomic acts raise the number of known ChineseProceratiumspecies to eight. In order to integrate the new species into the existing taxonomic system and to facilitate identifications, an illustrated key to the worker caste of all Chinese species is provided, supplemented by species accounts with high-resolution montage images and still images of volume renderings of 3D models based on micro-CT. Moreover, cybertype datasets are provided for the new species, as well as digital datasets for the remaining species that include the raw micro-CT scan data, 3D surface models, 3D rotation videos, and all light photography and micro-CT still images. These datasets are available online (Dryad, Staab et al. 2018, http://dx.doi.org/10.5061/dryad.h6j0g4p).

PurposeOnline production and transmission of child abuse material (CAM) is a complex and growing global problem. The exponential increase in the volume of CyberTips of CAM offending is placing information processing and decision-making strains on law enforcement. This paper presents the outcomes of a project that reviewed an existing risk assessment tool and then developed a new tool for CAM triaging and investigative prioritisation.Design/methodology/approachUsing a mixed method approach, the authors first explored the capacity of an existing risk assessment tool for predicting a police action. The authors then used these findings to design and implement a replacement CAM decision support tool. Using a random sample of CyberTip alert cases from 2018, the authors then tested the efficiency of the new tool.FindingsThe existing risk assessment tool was not fit for CAM triaging purposes. Just six questions from the old tool were found to be statistically and significantly associated with law enforcement agents achieving a police action. The authors found that an immediate threat of abuse/endangering a child, potential case solvability, CAM image assessment, chat assessment, criticality and some weighting for professional judgement were significant in being associated with a police action. The new decision support tool is more efficient to complete and achieved a 93.6% convergence of risk ratings with the old tool using 2018 case data.Originality/valueThis research is unique in its development of an evidence-based decision support tool that enhances the ability of law enforcement agents to objectively and efficiently triage and prioritise increasing numbers of CyberTip alerts.