Search results for "plagio"
showing 10 items of 80 documents
Highly siderophile element geochemistry of the Earth's mantle: new data for the Lanzo (Italy) and Ronda (Spain) orogenic peridotite bodies
2000
Abstract Nine plagioclase/spinel lherzolites from the Lanzo (Italy) and Ronda (Spain) peridotite bodies were analysed for Re, Os, Ir, Ru, Rh, Pd, and Au using a high-precision instrumental neutron activation (INA) procedure after NiS fire assay. Our data conform with previous observations that orogenic lherzolite massifs sampled domains of the subcontinental lithospheric mantle (SCLM) displaying a characteristic enrichment of Ru, Rh and Pd (i.e. the light platinum group elements; PGEs) over Os and Ir. The Pd/Ir, Rh/Ir and Ru/Ir ratios are superchondritic and very similar in both suites (2.46±0.32 vs. 2.42±0.21; 0.46±0.07 vs. 0.45±0.10; 1.99±0.14 vs. 2.25±0.25, respectively). Rhenium and gol…
Raccontare il plagio
2011
Raccontare il plagio C’è chi plagia, c’è chi è plagiato. Casistica ricca, per lo più occulta. Con rare, brevi incursioni sotto i riflettori della cronaca. Per chi scrive è comunque un’ossessione: la posta in gioco è solo marginalmente di tipo economico, ciò che conta è l’affermazione dell’originalità. E allora non stupisce il fatto che molti scrittori finiscano per riversare quell’ossessione nelle pagine dei loro stessi romanzi. Come si racconta il plagio? Da quale prospettiva? La prima e più ovvia è quella di chi lo subisce. Scrittori molto spesso esordienti: meno visibili, più ingenui. Poi c’è il punto di vista di chi si appropria – con scrupolo variabile – del talento altrui. Ci sono ope…
Helminth parasitizing <em>Iberolacerta cyreni</em> (Müller et Hellmich, 1937) from Gredos Mountains, Iberian Peninsula
2017
A survey of the helminth communities of a population of Iberolacerta cyreni (Müller et Hellmich, 1937), a small lizard endemic to Sistema Central (Iberian Peninsula), was conducted to determine the prevalence, abundance and species diversity of parasites of these reptiles. Four species of helminths were found, one trematode, Plagiorchis molini Lent et Freitas, 1940, one cestode, Nematotaenia tarentolae López-Neyra, 1944, and two nematodes, Skrjabinelazia sp. and Spauligodon carbonelli Roca & García-Adell, 1988. Helminth infracommunities of I. cireny showed very low values of abundance and species richness and diversity, being similar to other European lizards. The parasites found seem t…
The helminth community of Apodemus sylvaticus (Rodentia, Muridae) in the Sierra de Gredos (Spain)
2004
The Spanish mountain range of Gredos was included in the studies conducted on the Iberian peninsula to investigate helminth fauna of small mammals. The helminth community of the wood mouse, Apodemus sylvaticus (Rodentia, Muridae), was analysed. Qualitatively, 13 helminth species were detected: Plagiorchis sp. I and Plagiorchis sp. II (Trematoda); Taenia parva larvae, T. martis larvae, T. taeniaeformis larvae, Rodentolepis straminea and R. fraterna (Cestoda); and Trichuris muris, Heligmosomoides polygyrus, Syphacia stroma, S. frederici, Aspiculuris tetraptera and Rictularia proni (Nematoda). Quantitatively, the highest prevalence (65.0%) and the mean abundance (36.9%) of H. polygyrus stand o…
New national and regional bryophyte records, 42
2015
1. Acaulon triquetrum (Spruce) Mull.Hal.Contributors: S. Grdovic, A. Sabovljevic and M.S. SabovljevicSerbia: Belgrade, Bežanijska kosa, on loess soil, 16 March 2013, leg./det. Aneta Sabovljevic & M...
Plagiarists by chance or by choice? Literature and film tell plagiarism
2019
The notion of plagiarism is so controversial and richly stratified that it fascinates scholars from many different disciplines. For the boundary between plagiarism and similar notions is rather hard to be established. Originality is threatened from any direction: consider imitation, copy, theft. Many forgers are around: some start from afar, some others simply seize the opportunity. Then fatally, the threshold between fiction and reality is trespassed: novels’ plots are about plagiarism, and also cinema easily takes that obsession over. There are plenty of stories that concern a literary theft. This set is so large that it justifies a more general question: how plagiarism can be told? This …
Local disequilibrium of plagioclase in high-temperature shear zones of the Ivrea Zone, Italy
1995
Microstructural and chemical analysis of plagioclase in 20 superficially similar amphibolite facies ductile shear zones in metagabbors and amphibolites of the Ivrea Zone in Italy reveals significant differences in An and Ba contents. Plagioclase, which was deformed at P-T conditions lower than those of the wall rocks, occurs in the following four different microstructural situations with different chemical compositions: (i) relatively undeformed porphyroclasts, (ii) dynamically recrystallized grains and subgrains rimming the porphyroclasts, (iii) infill of microcracks cross-cutting the porphyroclasts and (iv) fine-grained recrystallized grains in the matrix of the shear zones. The differenc…
Four- and five-phase peridotites from a continental rift system: evidence for upper mantle uplift and cooling at the Ross Sea margin (Antarctica)
1992
Upper mantle plagioclase+spinel- and spinel-peridotite xenoliths occur in basanitic and tephritic lavas of the 2.7 my to Recent Mt. Melbourne Volcanic Field (Antarctica). This field belongs to the Cenozoic McMurdo volcanic group which is located between the deep western trough of the Ross Sea rift system and the uplifted rift shoulder of the Transantarctic Mountains. Our samples cover the transition zone between rift and shoulder. We examined texture and composition of plagioclase+spinel and normal spinel peridotites and determined temperatures and pressures of formation using the internally consistent Ca-ol/cpx and 2px-thermobarometer of Kohler and Brey (1990) and Brey and Kohler (1990). D…
Seismic properties across an amphibolite- to greenschist-facies strain gradient (Neves area, eastern Alps, Italy): New considerations for shear zone …
2021
Abstract Detecting the presence and geometry of crustal shear zones by geophysical methods relies on our understanding of the intrinsic parameters controlling the seismic properties of these deformed rocks, over the range of pressure-temperature conditions expected in the Earth's crust. To this end, we aimed to track changes in P-wave propagation velocity (VP), anisotropy (AVP) and S-wave splitting (AVS) across a natural shear zone using experimental and electron backscatter diffraction methods. Five samples were collected across a meter-scale shear zone developed under amphibolite- to greenschist-facies in the Neves metagranodiorite (Tauern Window, Eastern Alps). With increasing strain, se…
Vizio di firma. Plagio e dintorni
2022
Se esiste il dono della scrittura, c’è anche chi invidia quel talento e i suoi frutti: un sentimento che può trasformarsi in tentazione, magari portare al furto, perfino all’omicidio. Quante trame ci parlano di questa semplice idea: qualcuno mette il suo nome sull’opera di un altro. Romanzi e film mescolano più o meno gli stessi ingredienti, dosandoli però in modo differente. E chi li osserva può cedere alla fantasticheria di un unico grande racconto del plagio, un tema che fatalmente si ripete perché non si esce dall’ossessione che lo nutre. Una narrazione che lettori e spettatori ritroveranno in questo libro, scandita nelle sale di una lunga galleria. Siamo nel confortevole territorio del…