324,153 research outputs found
Esiste un genere in LIS?
No full textNelle lingue naturali i nomi vengono classificati dal genere. L’attribuzione del genere segue delle norme di tipo semantico ispirate da specifiche interpretazioni del mondo da parte di una comunità di parlanti. Ad esempio in molte lingue si distinguono tre classi nominali: la classe maschile e quella femminile che appartengono al dominio degli esseri animati, e la classe neutra che invece è di pertinenza del regno inanimato. Esistono numerosissime lingue che, come l’italiano, presentano i nomi divisi nelle due classi: maschile femminile, entro il cui dominio rientrano anche nomi inanimati considerati invece neutri da altre lingue. In tal caso diciamo che l’attribuzione del genere è “arbitraria”. La maniera con la quale il genere, o la classe, marca il nome può essere costituita da morfemi legati allo stesso nome, o all’articolo, o all’aggettivo, o a tutti questi.
La divisione dei nomi in classi si riflette nell’accordo degli altri elementi lessicali (come gli aggettivi, i determinanti e i verbi) con il nome. L’accordo con il nome è il fenomeno che dimostra l’esistenza di un genere. Ad esempio in italiano in una frase come la grande casa rossa è stata abbattuta è possibile osservare come con il nome concordino il verbo, l’articolo e un aggettivo; l’altro aggettivo non cambia la sua morfologia. In questa frase tutti gli elementi sono flessi al femminile. Al contrario nella frase il piccolo albero è stato abbattuto, tutti gli elementi concordano con il nome al maschile. Come è stato già osservato (Corbett, 1994) esiste una relazione stretta tra il genere e il numero, infatti in alcuni casi il genere si può rivelare diversamente al singolare e al plurale. Potremo osservare come questo fenomeno è riscontrabile anche nella LIS
Thevenetimyia spinosavus Maass & Bertone, sp. nov.
No full textThevenetimyia spinosavus Maass & Bertone, sp. nov. Material examined. Holotype ♂: MADAGASCAR, Tuléar Province: Zombiste National Park near road, 22°50.43'S, 44°43.87'E, 822 m, 16–31 October 2002 (M. Irwin & R. Harin’Hala colls.), MAO 2-13 B-40. Diagnosis. Features that distinguish this fly from the only other Afrotropical Thevenetimyia species include: smaller size (~ 6.2 mm), terminal flagellomere with blunt tip, spine-like tubercles on scutellum (Fig. 4 B), body setae white or black (not golden), and features of the wing venation. TABLE]. ƂOmbyliiđae kŊOwŊ fľOm Mađagascaľ (MOđifieđ fľOm ŧhe World catalog of bee flies (Diptera: Bombyliidae), (EveŊhuis & Gľeaŧheađ, 2015b) aŊđ Tľue flies: The Ŋaŧuľal hisŧOľy Of Mađagascaľ, IľwiŊ et al., 2003) Subfamily Genus Species Afrotropical Types Available: Described by: Distribution EclimiŊae (buŧ see Thevenetimyia spinosavus Mađagascaľ HOlOŧype iŊ CAS Maass and Bertone, ŧhis sŧuđy Yeaŧes, 1995, TľauŧweiŊ 2011) TOxOphOľiŊae Geron candidulus Mađagascaľ HOlOŧype iŊ NHMƂ ƂOwđeŊ, 1974 dilutus Alđabľa, AsŧOve Is, HOlOŧype iŊ MNHN ƂOwđeŊ, 1974 COsmOleđO Is, Mađagascaľ varicapillis Mađagascaľ HOlOŧype iŊ NHMƂ ƂOwđeŊ, 1974 arcuata Mađagascaľ Type iŊ uŊkŊOwŊ cOllecŧiOŊ (OľigiŊally iŊ Macquaľŧ, 1847 đe Villeľs COllecŧiOŊ) flammicoma Mađagascaľ HOlOŧype iŊ MRAC FľaŊçOis, 1964 madagascariensis Mađagascaľ HOlOŧype iŊ ƂMNH Macquaľŧ, 1850 melanaspis Mađagascaľ 3 syŊŧypes iŊ ƂMNH Ƃezzi, 1924 nigrispina Mađagascaľ HOlOŧype iŊ ƂMNH Ƃezzi, 1924 vayssierei Mađagascaľ SyŊŧype iŊ MNHM Séguy, 1934 Heteralonia dolichoptera Mađagascaľ HOlOŧype iŊ ƂMNH Ƃezzi, 1924 (as Exoprosopa dolichoptera) Villa unifasciata Mađagascaľ, LecŧOŧype iŊ MNHN; Type iŊ uŊkŊOwŊ Macquaľŧ, 1840 (as Anthrax Mauľiŧius, RéuŊiOŊ, cOllecŧiOŊ (OľigiŊally iŊ đe Villeľs unifasciata) ROđľiguez COllecŧiOŊ); SyŊŧype iŊ NHRS Male. Head (Fig 3): Head slightly wider than thorax. Ocellar tubercle pronounced, rounded, covered in long black setae. Eyes holoptic. Antennae with three segments, length approaching length of head, black, and dusted with grey pollinosity; pollinosity dense on scape and pedicel, more diffuse on flagellum. Scape covered in black setae of varying lengths; pedicel covered in short black setae; flagellum without setae. Scape approximately two and one-half times length of pedicel. Flagellum slightly longer than scape, about as wide as previous segments, width even throughout, and with blunt tip. Buccal cavity deep, with setose swelling under anterior rim. Palpus halflength of proboscis, covered in gray pollinosity and black setae. Terminal segment of palpus slightly swollen at about midlength and with shorter setae than previous segment. Proboscis black, about two times as long as head. Face and occipital area with long black setae. Gena and lower portions of postgena with white setae (Fig. 4A). Thorax (Fig 4A and B): Mesothoracic scutum and scutellum dull black. Ground color of remaining thorax similar to scutum and scutellum, but with a dense dusting of grey pollinosity, especially on the pleura. Scutum with sparse, long black setae. Sparse, irregularly spaced, prominent spines on anterior half of scutum, becoming much smaller and sparser posteriorly (need high magnification to observe on posterior half). Anterior scutal spines often with an associated seta attached to base. Scutellum prominent, projecting over first abdominal tergite, and with numerous, small, spine-like tubercles, becoming more dense on posterior face (Fig. 4 B). Anepisternum densely covered with long black setae. Anepimeron, katepisternum, and ventral portion of anepisternum with patches of long white setae of varying density. Notopleural area just before wing base with three prominent black bristles (Fig. 4A). Wings (Fig. 5): Wings smoky brown, darker along costal margin and gradually fading posteriorly. Venation typical for genus Thevenetimyia. Costa with two rows of evenly spaced, spine-like setae along length, becoming more densely spaced but individually finer beyond intersection of veins C and R2+3. M1 ending in the wing margin. CuA and A each terminating separately at wing margin. Crossvein r-m placed before middle of cell dm. Calypter with mixture of long black and white setae. Halter elongate with light stem and dark brown knob. Legs: Coxae of front, mid and hind legs dull black with even gray pollinosity and covered sparsely with long white hairs (Fig. 4A). Front leg: Femur dark brown, bare, with long setae on the underside near trochanter. Tibia brown with sparse setae and spines becoming more dense apically. Tarsi dark brown and with dense black bristles. Mid leg: Femur dark brown, bare with very few long setae near trochanter. Tibia lighter brown with evenly distributed black bristles. Apex of tibia with prominent spurs. Tarsi dark brown and densely packed with black bristles. Hind leg: Hind legs notably longer than front and mid legs (similar to other members of genus Thevenetimyia). Femur dark brown with sparse black bristles and setae. Tibia lighter brown with evenly distributed black bristles. Apex of tibia with prominent spurs. Tarsi dark brown and densely packed with black bristles. All pulvilli well developed, slightly more than half the length of claws, white and with dense hairs. Claws simple (Fig. 6). Abdomen: About twice the length of thorax. Ground color of tergites dark brown with gray pollinosity on the lateral portion. Tergite I with predominantly long white hair. Tergite II with long dark brown hair. Amount of hair decreases drastically on lateral portion posteriorly to tergite IV. No other remarkable hairs on tergites V–VII. Sternites brown with white hair of varying lengths, predominantly short, found evenly throughout all sternites. Long black bristle-like setae present on epandrium and sternite VII. Black bristles do not continue onto cerci, although cerci have shorter hairs. Dissection of male genitalia was not conducted due to only one specimen being known (Fig. 6). Etymology. The name is a noun in apposition based on a combination of spinosus (Latin = “thorny”) and avus (Latin = “grandfather”), referring to the spines present on the scutum and scutellum, and the fly’s “elderly” appearance (many white hairs found on the body and grey pollinosity).Published as part of Maass, Natalia, Larmore, Zachary, Bertone, Matthew A. & Trautwein, Michelle, 2016, Description of a new species of Thevenetimyia (Diptera: Bombyliidae) from Madagascar, with a revised checklist of Madagascan bee fly fauna, pp. 57-66 in Zootaxa 4175 (1) on pages 59-65, DOI: 10.11646/zootaxa.4175.1.5, http://zenodo.org/record/16029
Combining NNPDF3.0 and NNPDF2.3QED through the APFEL evolution code
No full textWe present sets of parton distribution functions (PDFs), based on the NNPDF3.0 family, which include the photon PDF from the NNPDF2.3QED sets, and leading-order QED contributions to the DGLAP evolution as implemented in the public code APFEL. The aim is to combine our state-of-the-art determination of quark and gluon PDFs with the so far only direct determination of the photon PDF from LHC data. In addition, the use of APFEL allowed us to employ a solution of the DGLAP equation that, differently from that used for the NNPDF2.3QED sets, includes QED corrections in a more accurate way. We briefly discuss how these sets are constructed and investigate the effect of the inclusion of the QED corrections on PDFs and parton luminosities. Finally, we compare the resulting sets, which we dubbed NNPDF3.0QED, to the older NNPDF2.3QED sets and to all presently available PDF sets that include QED corrections, namely CT14QED and MRST2004QED.We present sets of parton distribution functions (PDFs), based on the NNPDF3.0 family, which include the photon PDF from the NNPDF2.3QED sets, and leading-order QED contributions to the DGLAP evolution as implemented in the public code APFEL. The aim is to combine our state-of-the-art determination of quark and gluon PDFs with the so far only direct determination of the photon PDF from LHC data. In addition, the use of APFEL allowed us to employ a solution of the DGLAP equation that, differently from that used for the NNPDF2.3QED sets, includes QED corrections in a more accurate way. We briefly discuss how these sets are constructed and investigate the effect of the inclusion of the QED corrections on PDFs and parton luminosities. Finally, we compare the resulting sets, which we dubbed NNPDF3.0QED, to the older NNPDF2.3QED sets and to all presently available PDF sets that include QED corrections, namely CT14QED and MRST2004QED.We present sets of parton distribution functions (PDFs), based on the NNPDF3.0 family, which include the photon PDF from the NNPDF2.3QED sets, and leading-order QED contributions to the DGLAP evolution as implemented in the public code APFEL . The aim is to combine our state- of-the-art determination of quark and gluon PDFs with the so far only direct determination of the photon PDF from LHC data. In addition, the use of APFEL allowed us to employ a solution of the DGLAP equation that, differently from that used for the NNPDF2.3QED sets, includes QED corrections in a more accurate way. We briefly discuss how these sets are constructed and investi- gate the effect of the inclusion of the QED corrections on PDFs and parton luminosities. Finally, we compare the resulting sets, which we dubbed NNPDF3.0QED, to the older NNPDF2.3QED sets and to all presently available PDF sets that include QED corrections, namely CT14QED and MRST2004QE
Pneumococcal septic arthritis of the shoulder. Case report and literature review
No full textSeptic arthritis due to Streptococcus Pneumoniae appears to be relatively uncommon. Single- or clustered-case histories constitute the majority of reports on pneumococcal septic arthritis. A 70-year-old man presented with a 7-day history of pain, erythema and swelling of the left shoulder. Physical examination of the left shoulder revealed a warm, swollen, erythematous, and markedly tender to light palpation. The patient was unable to elevate his arm more than 30° without pain. Arthrocentesis performed on admission produced 30 cc of grossly purulent fluid whose culture demonstrated S. Pneumoniae. The septic arthritis was treated with intravenous vancomycin and imipenem. The antibiotics were substituted when the sensitivities were known with oral ciprofloxacin and rifampycin to complete 8 weeks' total treatment. On follow-up examination 1 year later, the patient has remained afebrile and asymptomatic without evidence of increasing joint effusion or acute joint inflammation. Pneumococcal arthritis is classically described as a painful monoarticular arthritis complicating an active pneumococcal infection, generally a primary pulmonary infection. Pneumococcal arthritis appears to be predominately a disease affecting the elderly. Clinical presentation ranges from septicemia to indolent infection with few systemic symptoms. With adequate antibiotic therapy and aspiration or drainage of the joint, the prognosis for return of normal joint function appears to be excellent. Although pneumococcal organisms are not likely causes, this bacteria should certainly be considered as a possible cause of arthritis or prosthetic infection
APFELgrid: A high performance tool for parton density determinations
No full textWe present a new software package designed to reduce the computational burden of hadron collider measurements in Parton Distribution Function (PDF) fits. The APFELgrid package converts interpolated weight tables provided by APPLgrid files into a more efficient format for PDF fitting by the combination with PDF and as evolution factors provided by APFEL. This combination significantly reduces the number of operations required to perform the calculation of hadronic observables in PDF fits and simplifies the structure of the calculation into a readily optimised scalar product. We demonstrate that our technique can lead to a substantial speed improvement when compared to existing methods without any reduction in numerical accuracy.
Program Summary
Program Title: APFELgrid
Program Files doi: http://dx.doi.org/10.17632/mhwjt5nsg7.1
Licensing provisions: MIT license
Programming language: C++
Nature of problem: Fast computation of hadronic observables under the variation of parton distribution functions.
Solution method: Combination of interpolated weight grids from APPLgrid files and evolution factors from APFEL into efficient FastKernel tables.
External routines/libraries: APPLgrid, APFE
Integration of gas-chromatographic and electrophoretic data for the identification of environmental bacteria by means of artificial neural networks
No full textLiquidFeedback in Large-scale Civic Contexts : Framing Multiple Styles of Online Participation
No full textGrowing distrust in government is accompanied by new opportunities for civic involvement through online technological
platforms. LiquidFeedback is one of the most interesting, as it embeds innovative features to support online deliberative
processes. Designed as an intranet tool for closed, homogeneous groups, the software has also been used in large civic
contexts involving citizens at large. This paper presents and analyses two large-scale deliberation projects where
thousands of Italian citizens used the LiquidFeedback platform. The analysis aims to understand how well this software
serves as a platform for people to gather ideas, draft proposals collaboratively, and then rate them by degree of
consensus. We consider the political context for these field cases and their socio-technical design choices, look at how
LiquidFeedback enables citizen participation, discuss politicians’ accountability in terms of online activity, and report
participants’ assessment of the two projects. Our analysis adapts existing frameworks that match different participation
styles to profiles of activity in online communitie
Preliminary experience with a new osteosynthesis device for intertrochanteric fractures
No full textFrom 1999, at the Orthopaedic Clinic of the University of Siena, 56 patients were treated with the compression hip nail-plate system, a new synthesis device for the treatment of peritrochanteric fractures. The system consists in a new dynamic cephalic screw that could be combined with a plate or a femoral nail. The dynamic cephalic screw of the BCM system has a limited sliding method, impeding excursion greater than 10 mm and preventing excessive collapse of the fracture fragments that can evolve into a shortening of the limb. The canulated nail has a diameter of only 9 mm, which permits insertion into the shaft canal without reaming. The possibility of the double combination of the screw with a plate or with an intramedullary nail permits the surgeon to have a double solution with a single instrument at hand, and offers the opportunity of changing the choice of synthesis method to implant even during surgery
Artificial neural network based identification of environmental bacteria by gas-chromatographic and electrophoretic data
No full textChemotaxonomic identification techniques are powerful tools for environmental micro-organisms, for which poor diagnostic schemes are available. Whole cellular fatty acid methyl esters (FAME) content is a stable bacterial profile, the analysis method is rapid, cheap, simple to perform and highly automated. Whole-cell protein is an even more powerful tool because it yields information at or below the species level. The description of new species and genera and subsequent continuous rearrangement provide large amounts of data, resulting in large databases. In order to set up suitable software tools to work on such large databases artificial neural network (ANN) based programs have been used to classify and identify marine bacteria at genus and species levels, starting from the fatty acid profiles and protein profiles respectively.We analysed 50 certified strains belonging to Halomonas, Marinomonas, Marinospirillum, Oceanospirillum and Pseudoalteromonas genera. Both supervised and unsupervised ANNs provide a correct classification of the marine strains analyzed. Moreover, a set of 73 marine fresh isolates were used as an example of identification using ANNs. We propose supervised and unsupervised ANNs as a reliable tool for classification of bacteria by means of their FAME and of whole-protein analyse and as a sound basis for a comprehensive artificial intelligence based system for polyphasic taxonom
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