264,755 research outputs found
Cephalogale sp. 5 Bonis 2019
No full text<i>Cephalogale</i> sp. <p>(Fig. 3F)</p> <p>NEW MATERIAL. — Piece of hemi-mandible, UP MGB 26, with p3, alveoli of c, p1, p2 and p4.</p> <p>DESCRIPTION AND COMPARISON</p> <p>The mandible (Fig. 3F 1, F 2) belongs to a medium sized carnivoran. The corpus height under p3 is 19.7 mm and the thickness 4.25 mm. There are two mental foramina, one under the roots of p2, another under the distal root of p3. The</p> <p> size of the tooth (L = 8.45, w = 4.25) is within the range of <i>Cyonarctos dessei</i> Bonis, 2013, with length = 7.6 to 11.1 mm and width 3.15 to 5.71 (Bonis 2013: table 1) but the shape is different. The profile of the crown is slightly asymmetrical, the distal part being larger than the mesial one. The buccal face is convex but the lingual one is separated into two parts by a vertical median pillar, with both parts being slightly concave. A weak cingulid runs along the lingual base and, to in a lesser extent, the buccal one, to distally enclose a small and very shallow talonid basin.</p> <p> The morphology of MGB 26 is far from that of the shearing premolars of the nimravids. It is the same, judging from the shape of P4, with the small amphicyonid <i>Goupilictis</i> Ginsburg, 1969. Thus, MGB 26 fits the Cephalogalini better. <i>Adelpharctos</i> Bonis, 1971 is larger. The p3 is missing in the holotype of the nominal species, but the shape and size of p4, large, high, and nearly symmetrical, may give an idea of the p3 morphology. However, the tooth is present in <i>A. ginsburgi</i> Bonis, 2011 and confirms the deduction. <i>Phoberogale</i> Ginsburg & Morales, 1995 displays a very low and elongate p3 with a more robust cingulid and a clear pacd. <i>Cyonarctos</i> Bonis, 2013 differs by the higher and more pointed p3 without cingulid and talonid basin. The closest genus seems to be <i>Cephalogale</i> with the closest species being <i>C. brevirostris</i> (Croizet <i>in</i> Blainville, 1845) (Blainville 1845: 122) and <i>C. gergoviensis</i> Viret, 1929. Thus we cannot provide a specific attribution, and then the fossil is identified as <i>Cephalogale</i> sp.</p>Published as part of <i>Bonis, Louis de, Gardin, Axelle & Blondel, Cécile, 2019, Carnivora from the early Oligocene of the ' Phosphorites du Quercy' in southwestern France, pp. 601-621 in Geodiversitas 41 (15)</i> on page 612, DOI: 10.5252/geodiversitas2019v41a15, <a href="http://zenodo.org/record/3694209">http://zenodo.org/record/3694209</a>
Mustelictis olivieri Bonis 1997
No full text<i>Mustelictis</i> aff. <i>olivieri</i> Bonis, 1997 <p>(Figs 4 C-E, G; 5F)</p> <p>TYPE SPECIMEN. — Holotype: skull, UP MGB60, by author designation; paratype: hemi-mandible, UP MGB 7.</p> <p>NEW MATERIAL. — Left m1, LPL11; left fragment of hemi-mandible, UP LPL12; right m1, UM VBOA 3-4; fragment of right hemi-mandible p2-p4, UM VD 12; left P4, VBO 494.</p> <p>REMARKS</p> <p>The holotype and paratype of the species come from Mas de Got (MP 22). A skull and a hemi-mandible (paratype) were figured by Bonis (1997: figs 1, 2). New research has recovered additional specimens in other localities.</p> <p>DESCRIPTION</p> <p>The premolars are present in UP LPL12 and UM VD12 and all of them have cutting mesial and distal edges. The p2 is dissymmetric, the mesial part being smaller than the distal</p> <p> one and having a more sloping mesial edge, the distal one finishing by a small upturned spur at its base. The p3, less dissymmetric than p2, displays a mesial spur; distally there is a small talonid with a small fovea surrounded by a low cristid; there is also a small pacd at mid-height on the distal edge (Fig. 4G 1, G 2). The p4 is similar to p3 but is larger. The carnassial is very similar to that of the type of <i>M</i>. <i>olivieri</i> but the talonid is less narrow. The m2 is larger than in the type in both absolute size and relative to m1; it has a complete trigonid with high protoconid and metaconid and small but clear paraconid, and a narrow talonid (Fig. 4B). The isolated P4 (VBO 494) figured by Peigné <i>et al.</i> (2014: fig. 22a) is close to that of the type specimen from Mas de Got, with a mesio-lingually elongate protocone finishing by a conic cusp, a buccal cingulum and a small mesial bulging representing a parastyle (Fig. 5F). These remains are close to the material of <i>M</i>. <i>olivieri</i> (Fig. 4F 1, F 2) but the small differences lead us to be cautious about the identification. They could be due to a small difference in the geological age between two localities of MP 22.</p>Published as part of <i>Bonis, Louis de, Gardin, Axelle & Blondel, Cécile, 2019, Carnivora from the early Oligocene of the ' Phosphorites du Quercy' in southwestern France, pp. 601-621 in Geodiversitas 41 (15)</i> on pages 614-615, DOI: 10.5252/geodiversitas2019v41a15, <a href="http://zenodo.org/record/3694209">http://zenodo.org/record/3694209</a>
Discussione del saggio “Le origini storiche dei conti finanziari: negli Stati Uniti e in Italia: Copeland, Baffi, le istituzioni”, di R. De Bonis e A. Gigliobianco
No full textLa discussione rientra nel convegno su "I conti finanziari: la storia, i metodi, l'Italia e i confronti internazionali", Banca d'Italia, Perugia, 2005. Il convegno ha presentato lavori di ricerca sui conti finanziari, statistiche che la Banca d'Italia pubblica dai primi anni Sessanta e oggi prodotte e ampiamente utilizzate dall'Eurosistema. Nella prima sessione, dedicata alla storia dei Conti Finanziari, è stato presentato il contributo di De Bonis e Gigliobianco sulle origini dei conti finanziari negli Stati Uniti e in Italia. La discussione riguarda la relazione di De Bonis e Gigliobianco sul processo culturale che portò alla costruzione dei Conti Finanziari in Banca d'Italia nel secondo dopoguerra. Il mio commento è centrato su: 1. il ruolo delle istituzioni di ricerca (e delle banche centrali) nella costruzione dei sistemi di contabilità macroeconomica e in tale ambito dei conti finanziari; 2. Il bilancio monetario di Baffi e la via nazionale ai Conti Finanziari; 3. Dal bilancio monetario di Baffi del 1949 alle matrici finanziarie di Mario Ercolani e Franco Cotula del 1964, 1969: elementi di continuità e di rottura
Asuntos Sr. Bonis
No full textDocuments diversos recollits amb el nom de L. Bonis, que juntament amb el seu cosí L. Bonis Gironella i altres socis van plantejar una sèrie de qüestions sobre la forma d'actuar de la Junta, bàsicament sobre els aspectes de pagaments d'impostos, relació amb l'empresa, l'accés a la galeria(Cercle del Liceu) i conflictes amb localitats. Es recullen documents de la Junta i del grup de soci
Existence of weak solutions to a nonlinear reaction-diffusion system with singular sources
No full textWe discuss the existence of a class of weak solutions to a nonlinear
parabolic system of reaction-diffusion type endowed with singular production
terms by reaction. The singularity is due to a potential occurrence of quenching
localized to the domain boundary. The kind of quenching we have in mind is
due to a twofold contribution: (i) the choice of boundary conditions, modeling
in our case the contact with an in nite reservoir filled with ready-to-react
chemicals and (ii) the use of a particular nonlinear, non-Lipschitz structure
of the reaction kinetics. Our working techniques use fine energy estimates for
approximating non-singular problems and uniform control on the set where
singularities are localizing
Singular elliptic problems in general domains
No full textIn this paper, we prove the existence of solutions to nonlinear elliptic equations, which present first-order terms with natural growth with respect to the gradient and lower order terms singular in the variable that represents the solution. The problems are considered on a domain omega, which may have infinite Lebesgue measure
Symmetrization results for parabolic equations with a singular lower order term
No full textWe provide symmetrization results as mass concentration comparisons for solutions to singular parabolic equations in the cylinder Omega x (0,T),T > 0. Here, Omega subset of R-N(N >= 2) is a bounded open set, featuring a lower order term that is singular in the solution variables
Raw materials for ancient ceramic productions from Campania region: provenance studies by means of Sr-Nd isotopes
No full textWhen archaeometric studies on archaeological ceramics are performed, one of the most important questions
asked by archaeologists is the provenance of pottery. This is usually performed by comparing mineropetrographic
and chemical composition of ceramics with that of local raw materials (clays, temper), production
indicators and appropriate reference groups. Nevertheless, the commonly-used analytical techniques (e.g. OM,
SEM-EDS, XRF, ICP-MS) may not always be helpful for the determination of provenance. Indeed, processing
of raw materials, such as tempering or levigation, can significantly modify their original chemical composition,
sometimes leading to an ineffective identification of raw material resources. For this reason, a pioneering
analytical approach has been recently applied by measuring the Sr and Nd isotopic signature.
Isotope analysis has largely used in archaeological sciences to date objects and identify their provenance,
making it also a useful tool for the determination of provenance of ceramic vessels (De Bonis et al., 2018 and
references therein). For this study, 87Sr/86Sr and 143Nd/144Nd isotope ratios were measured on archaeological
pottery from Campania and raw materials (clays and volcanic temper) exploited in antiquity for producing
ceramics. The analyses were focused on samples from both the Bay of Naples and Southern Campania. The
isotope signatures allowed us to better discriminate among different productions and find a strong relationship
between the archaeological pottery and the geological sources of raw materials.
In order to validate the method, Sr-Nd isotope ratios were also measured for the first time on experimental
ceramic materials that replicate archaeological pottery (De Bonis et al., 2018). It was interesting to note that
synthetic mixtures used for the ceramic replicas plot exactly on the theoretical mixing curve between the
clay and volcanic temper end-members. This suggests that the artificial manipulation of raw materials (firing,
levigation, tempering) induces no significant variations to the Sr-Nd isotope fingerprint, which strictly depends
on the geochemical affinity of the raw materials. Thus, isotopic analysis can be considered as an effective
and robust method that could complement the common multi-analytical approach in order to more precisely
constrain potential geological sources for ceramic materials and pottery provenance.
De Bonis, A., Arienzo I., D’Antonio, M., Franciosi, L., Germinario, C., Grifa, C., Guarino, V., Langella, A. & Morra, V.
(2018): Sr-Nd isotopic fingerprint as a tool for ceramic provenance: application on raw materials, ceramic replicas and
ancient pottery. J. Archaeol. Sci., 94, 51-59
Wangictis tedfordi Bonis & Gardin & Blondel 2019, n. comb.
No full text<i>Wangictis tedfordi</i> (Wang & Qiu, 2003) n. comb. <p> <i>Pachycynodon tedfordi</i> Wang & Qiu, 2003: 117.</p> <p>TYPE MATERIAL. — Holotype: left hemi-mandible with c-m2 by monotypy TYPE LOCALITY. — Ulanmannei, east of Saint-Jacques, Nei Mongol, China.</p> <p>TYPE HORIZON. — Early Oligocene.</p> <p>DIAGNOSIS. — That of the genus.</p> <p>REMARKS</p> <p> The type hemi-mandible was described (Wang & Qiu 2003) as <i>Pachycynodon</i>. Nevertheless, despite the relatively swollen cheek teeth, as in all Amphicynodontidae, it differs from the species of the genus <i>Pachycynodon</i> by the p4, which is lower than the protoconid of m1, the reduced metaconid of m1 and the very short paraconid, the shape of the premolars, and the reduction of p1-p3, which seems to indicate a shorter muzzle. This fossil may belong in the family Amphicynodontidae but not into the genus <i>Pachycynodon</i>. The occurrence in Asia of <i>W. tedfordi</i> (Wang & Qiu, 2003) n. comb. indicates a larger splitting of the family than previously thought.</p>Published as part of <i>Bonis, Louis de, Gardin, Axelle & Blondel, Cécile, 2019, Carnivora from the early Oligocene of the ' Phosphorites du Quercy' in southwestern France, pp. 601-621 in Geodiversitas 41 (15)</i> on pages 611-612, DOI: 10.5252/geodiversitas2019v41a15, <a href="http://zenodo.org/record/3694209">http://zenodo.org/record/3694209</a>
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