436 research outputs found
Taxonomy and morphological characterization of Allotettix simoni (Bolívar, 1890) and implications for the systematics of Metrodorinae (Orthoptera: Tetrigidae)
No full textFigure 9. Environmental scanning electron micrographs of thoracic details of Allotettix simoni adult (Aragua, Venezuela). A, dorsal view of anterior portion; B, scapular area; C, lateral view of the terminal portion of pronotum. Abbreviations: acp, anterior carina of the pronotum; hc, humeral carina; mcp, median carina of the pronotum; tf, anterior transversal furrows. Scale bars = 100 Mm.Published as part of Pavón-Gozalo, Pilar, Manzanilla, Jesús & García-París, Mario, 2012, Taxonomy and morphological characterization of Allotettix simoni (Bolívar, 1890) and implications for the systematics of Metrodorinae (Orthoptera: Tetrigidae), pp. 52-70 in Zoological Journal of the Linnean Society 164 (1) on page 62, DOI: 10.1111/j.1096-3642.2011.00764.x, http://zenodo.org/record/540642
Concepts to Questions: Creating an Electronics Concept Inventory Exam
No full textAuthors Mario Simoni, Marc Herniter and Bruce Ferguson of Rose-Hulman Institute of Technology present their work in developing electronics concept inventory (ECI) exam for basic electronic circuits.  "Concept inventory exams are standardized tests that have been carefully designed to point out the common misconceptions that students have in a specific body of knowledge."  This paper is six pages in length, and includes graphs and references. Â
Advances in Modeling of Noisy Quantum Computers: Spin Qubits in Semiconductor Quantum Dots
No full textThe new quantum era is expected to have an unprecedented social impact, enabling the research of tomorrow in several pivotal fields. These perspectives require a physical system able to encode, process and store for a sufficiently long amount of time the quantum information. However, the optimal engineering of currently available quantum computers, which are small and flawed by several non-ideal phenomena, requires an efficacious methodology for exploring the design space. Hence, there is an unmet need for the development of reliable hardware-aware simulation infrastructures able to efficiently emulate the behaviour of quantum hardware that commits to looking for innovative systematic ways, with a bottom-up approach starting from the physical level, moving to the device level and up to the system level. This article discusses the development of a classical simulation infrastructure for semiconductor quantum-dot quantum computation based on compact models, where each device is described in terms of the main physical parameters affecting its performance in a sufficiently easy way from a computational point of view for providing accurate results without involving sophisticated physical simulators, thus reducing the requirements on CPU and memory. The effectiveness of the involved approximations is tested on a benchmark of quantum circuits - in the expected operating ranges of quantum hardware - by comparing the corresponding outcomes with those obtained via numeric integration of the Schrödinger equation. The achieved results give evidence that this work is a step forward towards the definition of a classical simulator of quantum computers.QCD/Scappucci La
Taxonomy and morphological characterization of Allotettix simoni (Bolívar, 1890) and implications for the systematics of Metrodorinae (Orthoptera: Tetrigidae)
No full textReceived 9 November 2010; revised 19 May 2011; accepted for publication 20 May 2011Characters used to diagnose the subfamily Metrodorinae (Bolívar, 1887) (Orthoptera: Tetrigidae) are largely variable or homoplastic. Relevant traits used to distinguish amongst subfamilies of Tetrigidae, including sensorial structures, mouth parts, and genitalia are not present in any description of representatives of the subfamily Metrodorinae. The identity of Metrodorinae remains thus at stake. Aiming to fill the current lack of knowledge, a complete anatomical description of adult and last instar nymphs of Allotettix simoni (Bolívar, 1890) is provided. Allotettix simoni is a controverted taxon, originally described in the genus Paratettix and subsequently synonymized with Allotettix peruvianus. The revision of type specimens revealed that A. simoni and A. peruvianus are different species. As neither keys nor descriptions of nymphs of Neotropical Tetrigidae exist, A. simoni nymphs were identified comparing mitochondrial sequences of the cytochrome c oxidase subunit I (COI) gene with adult specimens. The anatomical description of A. simoni expanded by comparisons with material of Metrodora sp. nov., revealed that the subfamilies Metrodorinae and Tetriginae are morphologically very similar, whereas molecular analyses of the COI data set do not support the monophyly of the subfamily Metrodorinae with respect to Tetriginae. Consequently Metrodorinae might not represent an independent entity with respect to Tetriginae.J. M. and M. G. P.’s collaborative research was supported by a grant from the AECI (Agencia Española de Cooperación Internacional). Our work has been partially funded by the project grant CGL2010-15786 (Ministerio de Ciencia e Innovación, Spain).Peer Reviewe
Psammoecus simoni Grouvelle 1892
No full textPsammoecus simoni Grouvelle, 1892 (Fig. 11) Psammoecus simonis Grouvelle, 1892: 287. Psammoecus simoni – Grouvelle 1908c: 476.— Pal 1985. Material examined Lectotype ♂, by present designation: ‘ Antipolo | E. Simon’, ‘TYPE’ [red label], ‘MUSEUM PARIS | 1917 | Coll. GROUVELLE’ [yellow label], ‘ Psammoecus | Simoni | ty. A. Grouv’ [Grouvelle’s hand] (MNHN). Paralectotype 1 spm with identical data as lectotype (MNHN). Other material 5 spms ‘COLL: MUS. CONGO | Madagascar: Maroansetra | (à la lumière) II/ IV-1950 | J. Vadon’ (MRAC). 1spm ‘COLL. MUS. TERVUREN | N.E. Madagascar: | Ambodivoangy 1959 | J. Vadon’ (MRAC). Differential diagnosis Ps. simoni differs by its short oval habitus and the short, stout parameres that are fused with the basal piece from all other African Psammoecus. The wide-based pronotal teeth resemble Ps. luchti sp. nov., it differs by the elytral striae being considerably wider than interstices, elytra being shorter, darkened basis of elytra, parameres short, stout and fused with basal piece. Redescription BODY. Oval, total length 2.13-3.00 mm (Fig. 11A). Surface yellowish-brown, sometimes reddish-brown, elytra with brown or blackish-brown maculae: humeral swelling, a transverse band in the middle of the elytra, the elytral suture along the posterior two thirds and the elytral apex are dark. Base of antennae yellowish or reddish brown, 6 th to 10 th antennomere darkened, 11 th antennomere yellowish-white, some specimens with light apex of 10 th antennomere. HEAD. Broad, temples narrowed immediately behind eyes; width 0.64-0.71 mm, length 0.33-0.44 mm, 1.67-1.73 times as wide as long. Eyes protuberant, rounded, 0.17-0.20 mm long, distance of inner margins 0.38-0.45 mm. Puncturation on vertex coarse, density of punctures variable, pubescence composed of long, semierect setae, directed anteriorly; microsculpture absent. Longitudinal impressions on vertex very shallow, attaining the middle of the eyes, sometimes shorter. Antennae as in Fig. 11B, 1.17-1.40 mm long, stout, antennomere proportions of lectotype as follows: 2.9: 1.3: 1.8: 1.5: 1.8: 1.6: 1.4: 1.0:1.2: 1.4: 2.8. PRONOTUM. Broad; width 0.62-0.74 mm, length 0.48-0.56 mm, 1.22-1.35 times as wide as long. Surface smooth, without impressions. Anterior angles with distinct groups of small teeth; lateral margins with four distinct teeth; tooth I very small, tooth II a little larger, teeth III and IV largest. Posterior group of teeth consisting of a larger anterior tooth and a very small, almost obtuse posterior tooth. Puncturation coarser than on vertex, punctures sometimes adjoining. Pubescence as on vertex; microsculpture absent. ELYTRA. Oval, short, length 1.35-1.70 mm, combined width 1.00- 1.23 mm, 1.27-1.43 times as long as their combined width. Rows of punctures on disc wider than interstices. Pubescence consists of long, semierect setae. Microsculpture absent. PARAMERES. Short, stout, fused with basal piece; with distinct pattern of three large setae (Fig. 11 C). Remarks In his original description, Grouvelle (1892) spells the name ‘simonis’. However, on the labels that Grouvelle added to the syntypes as well as in a later paper (Grouvelle, 1908c), he spells the name ‘simoni’. Pal (1985) also uses the latter spelling. Hence the present author considers ‘simonis’ to be a misprint and proposes to spell the name in accordance with Grouvelle (1908c) and Pal (1985).Published as part of Karner, Michael, 2012, A revision of African Psammoecus (Coleoptera, Silvanidae) and descriptions of two new species from the collection of the Musée royal de l'Afrique centrale, pp. 1-31 in European Journal of Taxonomy 17 on pages 24-26, DOI: 10.5852/ejt.2012.17, http://zenodo.org/record/385784
Construyendo la ópera nacional: A Marília de Itamaracá de L. V. De-Simoni
No full textLuiz Vicente De Simoni (1782-1881) was an Italian physician who went to Rio de Janeiro in 1817, and was constantly involved in the musical and theatrical scene of the city. He is the author of Marília de Itamaracá (1854, music by Adolpho Maersch), considered by some authors as the first “Brazilian” opera. The subject is historical and narrates some episodes of the 17th century war against the Dutch. One of his main concerns was the use of Brazilian and Portuguese themes in operas, in order to invent something “national”. As part of a broader movement, the idea was to explore Brazilian people, landscape and traditions as the main subject for operas that should be sung in Portuguese. The movement was related to a broader political project sponsored by the government and the Emperor, aimed at the revision of Brazilian history and the construction of a new cultural identity for the country. The purpose of this paper is to examine some aspects of the libretto of Marília de Itamaracá and the ideas discussed in its preface, showing the contradictions and tensions involved in the creation of a “national” identity through operas
Axotomy affects density but not properties of leak potassium channels, in the leech AP neurons.
No full textApplication of the Theory of Planned Behaviour in the prediction of edible insects consumption
No full textInsects are a potential replacement for animal derived proteins, providing nutrient components at lower environmental impact. Despite the benefits, the population of Western countries generally reject entomophagy and consider insects disgusting. This work aims to measure the intention and behaviour of eating products containing insect flour in the next month. We focused on a chocolate biscuit with edible insect ingredient (10% of cricket flour), which might be considered as an enrich protein substitute of the traditional biscuit. The analysis was conducted on 231 Italian young consumers using the Theory of Planned Behaviour (TPB), suggesting that behaviour, given sufficient control, is guided by intention. The most relevant factor that could impede the intention of eating a product containing insect flour is, as expected, the unavailability at the supermarket, followed by the disgust factor. Interventions may consider targeting behavioural control, developing food products close to the Western culture such as energy bar and bakery products containing insect flour. The implications of this study might be useful to understand the main motivations and barriers regarding the adoption of insects as a substitute for other food products in the Western culture
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