2,711 research outputs found
Fibrolipoma of the oral cavity: treatment choice in a case with an unusual location
Fibro-lipoma has been infrequently found in the oral cavity. Clinical and histological features of an unusual case located alongside the lingual cortical of the
mandible are reported. A particular surgical approach was used with an intrasulcular incision, since it allowed best access to the pathological tissue, optimal flap repositioning and a lower risk of post-surgical wound dehiscence
Phenomenology at the LHC of composite particles from strongly interacting Standard Model fermions via four-fermion operators of NJL type
A new physics scenario shows that four-fermion operators of
Nambu-Jona-Lasinio (NJL) type have a strong-coupling UV fixed point, where
composite fermions (bosons ) form as bound states of three (two) SM
elementary fermions and they couple to their constituents via effective contact
interactions at the composite scale (TeV). We
present a phenomenological study to investigate such composite particles at the
LHC by computing the production cross sections and decay widths of composite
fermions in the context of the relevant experiments at the LHC with
collisions at TeV and TeV.
Systematically examining all the different composite particles and the
signatures with which they can manifest, we found a vast spectrum of composite
particles that has not yet been explored at the LHC. Recasting the recent
CMS results of the resonant channel , we find that the composite fermion mass below 4.25 TeV is
excluded for / = 1. We further highlight the region of parameter
space where this specific composite particle can appear using 3 ab,
expected by the High-Luminosity LHC, computing 3 and 5 contour plots
of its statistical significance.Comment: To appear in EPJC. This revised version expands the search for
composite fermion F considering all its possible flavors and topologies and
highlighting the signatures not yet investigated at LH
The central odontogenic fibroma: how difficult can be making a preliminary diagnosis
Central odontogenic fibroma (COF) is a rare benign odontogenic tumor derived from the dental ectomesenchymal
tissues. A 16-year-old Caucasian female patient was referred by her dentist for a radiolucent asymptomatic area
associated with the crown of the impacted lower right third molar. A preliminary diagnosis of a follicular cyst
was supposed. The lesion was surgically removed under general anesthesia together with the impacted tooth. The
microscopic diagnosis of the excised tissue revealed an odontogenic fibroma. No clinical or radiographic signs of
recurrence were found five years after surgical excision. Despite the various differential diagnoses of homogeneous
unilocular and well delimited radiolucencies of the jaws, enucleation with peripheral curettage, without any other
pre-operative imaging exams or biopsies, can be considered as the treatment of choice
The antimicrobial photodynamic therapy in the treatment of peri-implantitis
The aim of this study is to demonstrate the effectiveness of addition of the antimicrobial photodynamic therapy to
the conventional approach in the treatment of peri-implantitis. Materials and Methods. Forty patients were randomly assigned
to test or control groups. Patients were assessed at baseline and at six (T1), twelve (T2), and twenty-four (T3) weeks recording
plaque index (PlI), probing pocket depth (PPD), and bleeding on probing (BOP); control group received conventional periodontal
therapy, while test group received photodynamic therapy in addition to it. Result. Test group showed a 70% reduction in the plaque
index values and a 60% reduction in PD values compared to the baseline. BOP and suppuration were not detectable. Control
group showed a significative reduction in plaque index and PD. Discussion. Laser therapy has some advantages in comparison to
traditional therapy, with faster and greater healing of the wound. Conclusion. Test group showed after 24 weeks a better value in
terms of PPD, BOP, and PlI, with an average pocket depth value of 2 mm, if compared with control group (3 mm).Our results suggest
that antimicrobial photodynamic therapy with diode laser and phenothiazine chloride represents a reliable adjunctive treatment
to conventional therapy. Photodynamic therapy should, however, be considered a coadjuvant in the treatment of peri-implantitis
associated with mechanical (scaling) and surgical (grafts) treatments
Studio geofisico integrato ad alta risoluzione dei depositi marini e della struttura del substrato della riviera di Miramare (Golfo di Trieste)
2007/2008L’obiettivo della presente tesi di Dottarato è lo studio della sequenza sedimentaria marina e continentale e del substrato di Flysch sottostante, presente nella Riviera di Miramare (Golfo di Trieste) al fine di comprendere l’evoluzione deposizionale e tettonica dell’area.
A tale scopo è stato eseguito uno studio geofisico integrato con cinque metologie geofisiche marine ad alta risoluzione, due di tipo sismico e tre di tipo Sonar:
1. Sub-bottom profiler Boomer;
2. Sub-bottom profiler CHIRP;
3. Singlebeam Echosaunder (SBES);
4. Multibeam Echosounder (MBES);
5. Side Scan Sonar (SSS).
I rilievi sub-bottom profiler Boomer e CHIRP hanno fornito le informazioni necessarie per l’interpretazione del basamento acustico costituito dal Flysch eocenico, con da morfologia caratterizzata da scarpate e piattaforme costiere di origine tettonica ed erosione marina, le strutture tettoniche principali, e dei sedimenti marini e continentali quaternari, con strutture progradanti HST oloceniche e pleistoceniche, depositi fluviali e canali sepolti ricollegabili ad una rete idrica superficiale.
I rilievi Sonar Singlebeam, Multibeam e Side Scan Sonar, ad alta frequenza, hanno permesso di rilevare la batimetria e la morfologia dei fondali marini antistanti la riviera di Miramare e Barcola, all’interno della Riserva Naturale Marina di Miramare.
E’ stata realizzato un modello tridimensionale digitale del fondo mare e una cartografia tematica ove sono riportate le batimetrie con isobate a 1 m, le morfologie rocciose sub-affioranti, la tessitura dei depositi sedimentari e le forme di fondo, inoltre alcune praterie di fanerogame, ormeggi, relitti e condotte sottomarine.
Nel Capitolo 1 – Introduzione è esposto il tema della Ricerca di Dottorato in Scienze Ambientali, sono descritti i principali obiettivi del lavoro e una sintesi dello stato dell’arte sul tema proposto.
Nel Capitolo 2 - Inquadramento geologico e studi precedenti sono presentate una descrizione generale del Golfo di Trieste, con le caratteristiche delle coste, la batimetria e la geomorfologia del fondale marino, il mare (correnti e clima), la geologia della Provincia di Trieste (la Formazione dei Calcari del Carso Triestino e la Formazione del Flysch di Trieste), i depositi recenti continentali e marini, datazioni di sedimenti recenti, gli studi geofisici marini precedenti, gli aspetti strutturali, una ricostruzione paleogeografica generale, la sismicità , i sondaggi geognostici presenti in bibliografia ed utilizzati nella taratura sismo-stratigrafica e nella conversione tempi in profondità dei profili sismici, un inquadramento topografico dell’area oggetto di studio e la descrizione del Parco WWF della Riserva Naturale Marina di Miramare.
Nel Capitolo 3 - Acquisizione dati sismici e morfo-batimetrici sono descritte le imbarcazioni utilizzate nei rilievi geofisici, il sistema di riferimento adottato, le metodologie adottate, la strumentazione utilizzata, ed i rilievi relativi ad ogni metodologia ad alta risoluzione che è stata esaminata nel lavoro di dottorato.
Nel Capitolo 4 - Elaborazione dati e conversione tempi-profondità vengono descritte le procedure per l’elaborazione dei dati geofisici digitali, suddivisi per paragrafi separati per ogni metodologia utilizzata, i sistemi di taratura e le operazioni per la conversione della scala verticale da tempi (TWT two way time) in profondità metrica con l’ausilio delle stratigrafie dei sondaggi geognostici.
Il Capitolo 5 - Interpretazione geologica e geomorfologia: risultati e discussione comincia con una valutazione qualitativa fra la metodologia sub-bottom Boomer e quella Chirp. Si prosegue con l’interpretazione sismostratigrafica delle sezioni sismiche Boomer, valutate con miglior risoluzione e maggior penetrazione investigativa. E’ stato interpretato il basamento acustico in Flysch caratterizzato da una serie di scarpate e piattaforme di origine erosiva e tettonica, e in prossimità della costa da faglie inverse relative alla struttura dinarica. E’stata interpretata la successione di depositi sedimentari Quaternari, distinta in diverse facies acustiche separate da orizzonti significativi, in cui sono stati riconosciuti il piano di emersione riferibile al massimo glaciale würmiano e i soprastanti deposti marini olocenici con il cuneo progradante di stazionamento alto, e la correlazione di un cuneo progradante a profondità compresa fra 45 e 50 metri, relativo allo stazionamento alto probabilmente della base Pleistocene Superiore (125.000 anni fa), datate attraverso la correlazione con datazioni dei sedimenti nel Golfo di Trieste e mediante l’utilizzo delle curve eustatiche. Segue l’interpretazione batimetrica e geomorfologica dell’area di Miramare e Cedas, con la descrizione del DTM generato dai dati Multibeam e con la descrizione degli elementi riconosciuti nei rilievi Side Scan Sonar, con la mappatura del substrato roccioso sub-affiorante e di blocchi isolati, la tessitura dei sedimenti e delle forme di fondo, la mappatura di facies biologiche delle praterie di fanerogame, ormeggi, relitti e condotte sottomarine.
Nel Capitolo 6 – Conclusioni vengono sintetizzate le metodologiche utilizzate, evidenziando i metodi di elaborazione del dato per migliorare la risoluzione, ed i risultati dell’interpretazione che ha permesso la ricostruzione dell’evoluzione del Pleistocene Superiore e dell’Olocene nell’area di studio. Viene infine descritta in un modello tridimensionale una sintesi dei risultati della Ricerca di Dottorato.The aim of the present thesis is the study of the marine and continental sedimentary sequences and of the underlying Flysch bedrock occurring in the Riviera di Miramare (Gulf of Trieste), to enhance the comprehension of the sedimentary and tectonic evolution of the area.
An integrated geophysical study with five different geophysical methodologies, has been done. The first two methodologies are seismic, while the last three belong to the sonar kind:
1. Sub-bottom profiler Boomer;
2. Sub-bottom profiler CHIRP;
3. Singlebeam Echosaunder (SBES);
4. Multibeam Echosounder (MBES);
5. Side Scan Sonar (SSS).
The Sub-bottom profiler Boomer and CHIRP surveys provide information for the interpretation of the acoustic basement constituted by the Eocene Flysch, with the morphology characterized by escarpments and shore platforms of tectonic and marine erosion origin, the main tectonic structures, and the Quaternary marine sediments, with Holocenic and Pleistocenic prograding HST features, fluvial deposit and buried channels linked to the subaerial hydrographic network.
The Singlebeam Sonar, the Multibeam Sonar and the Side Scan Sonar high-frequency surveys allowed to investigate the bathymetries and the morphologies of the sea bottom in front of the Miramare seacoast and Barcola, within the Natural Sea Reserve.
It has been produced a three-dimensional digital model of the sea bottom as well as a thematic cartography with 1 m interval isobaths, the sub-outcropping rock, the weaving of the sedimentary deposits and the bottom shapes, some prairies of marine phanerogams, moorings, marine wrecks and submarine conducts.
Chapter 1 - Introduction. I have explained the subject of my research for the Ph.D. in Environmental Sciences, where I have described the main purposes of the work and a summary of the state of the art of the above subject.
Chapter 2 – Geological note and bibliography. I have provide a general description of the Gulf of Trieste with some notes on the seacoasts, the bathymetry and the geomorphology of the sea bottom, the sea (currents and climate), the geology of the Province of Trieste (formation of Trieste Karst’s limestones and Flysch), the recent continental and sea deposits, the previous marine geophysical studies, the structural framework, the seismicity, the geognostic surveys (four wells) used to seismostratigraphic calibration and for times to depth conversion, a general paleogeographic reconstruction, a topographic framework of the examined area and the description of the WWF Park inside the Natural Marine Reserve of Miramare.
Chapter 3 – Acquisition seismic and morpho-bathimetric data. I have described the seismic and morphobathymetric data acquisition, the boats used for the geophysical surveys, the reference system, a short description of the methodologies, and then in detail the instruments and the surveys of every high-resolution methodology which has been examined during the Ph.D.
Chapter 4 – Geophysical data processing and times-depth conversion. For each methodology I have described the procedures of calibration system and data processing, and the operations for times to depth conversion, using the stratigraphies of geognostic surveys.
Chapter 5 - The geological and geomorphological interpretation: results and discussion, begins with a qualitative assessment between the Sub-bottom Boomer and the Chirp methodologies, continuing with the seismic-stratigraphic analysis of the Boomer seismic sections, evaluated with a better resolution and penetration. The seismic interpretation provide the identification of the Flysch bedrock, characterized by escarpments and shore platforms of marine erosion and tectonic origin and by inverse faults related to the coastal Dinaric thrust. Different acoustic facies have been identified in the Quaternary sediment: the sub-aerial surface dating back to the Würm glacial maximum overlying by marine deposit and close to the coast by the Holocenic prograding wedge of HST, the 45-50 m deep prograding wedge of HST probably related, according to the eustatic curves, to the base of the Late Pleistocene (125.000 year B.P.). Then, it is described the bathymetric and geo-morphological interpretation of the areas of Miramare and Cedas, together with the DTM created by the Multibeam data, the identified elements in the Side Scan Sonar surveys and the mapping of the rock sub-outcropping substrate and isolated blocks, ripples, bottom shapes, biological facies as the prairies of marine phanerogams, moorings, marine wrecks and submarine conducts.
Chapter 6 - Conclusions. I have described the methodological conclusions, pointing out the processing methods in order to improve the resolution, as well as the experimental conclusions, to highlight and comment upon the results which I have obtained from the data processing and the interpretation. In the end I have presented through a three-dimensional model a summary of the results of the Ph.D. research.XX Ciclo197
A Streamlined Model of Conditional Simple Temporal Networks - Semantics and Equivalence Results
A Conditional Simple Temporal Network (CSTN) augments a Simple Temporal Network to include a new kind of time-points, called observation time-points. The execution of an observation time-point generates information in real time, specifically, the truth value of a propositional letter. In addition, time-points and temporal constraints may be labeled by conjunctions of (positive or negative) propositional letters. A CSTN is called dynamically consistent (DC) if there exists a dynamic strategy for executing its time-points such that no matter how the observations turn out during execution, the time-points whose labels are consistent with those observations have all been executed, and the constraints whose labels are consistent with those observations have all been satisfied. The strategy is dynamic in that its execution decisions may react to observations.
The original formulation of CSTNs included propositional labels only on time-points, but the DC-checking algorithm was impractical because it was based on a conversion of the semantic constraints into an exponentially-sized Disjunctive Temporal Network. Later work added propositional labels to temporal constraints, and yielded a sound-and-complete propagation-based DC-checking algorithm, empirically demonstrated to be practical across a variety of CSTNs.
This paper introduces a streamlined version of a CSTN in which propositional labels may appear on constraints, but not on time-points. This change simplifies the definition of the DC property, as well as the propagation rules for the DC-checking algorithm. It also simplifies the proofs of the soundness and completeness of those rules.
This paper provides two translations from traditional CSTNs to streamlined CSTNs. Each translation preserves the DC property and, for any DC network, ensures that any dynamic execution strategy for that network can be extended to a strategy for its streamlined counterpart.
Finally, this paper presents an empirical comparison of two versions of the DC-checking algorithm: the original version and a simplified version for streamlined CSTNs. The comparison is based on CSTN benchmarks from earlier work. For small-sized CSTNs, the original version shows the best performance, but the performance difference between the two versions decreases as the number of time-points in the CSTN increases. We conclude that the simplified algorithm is a practical alternative for checking the dynamic consistency of CSTNs
Is telephone follow-up really effective in early diagnosis of inflammatory complications after tooth extraction?
To establish whether telephone follow-up is really able to intercept post-extraction complications and to evaluate the degree of patient satisfaction with this kind of post-surgical monitoring. Six hundred and thirty-eight patients were enrolled and randomly assigned to a test or control group. Test group patients were monitored by telephone follow-up 24 and 72 hours after surgery to investigate the presence of local symptoms that are frequently associated with surgical wound infection and inflammation. Both test and control group patients were examined 7 days at suture removal. Patients with systemic diseases, those in which intra-operative accidents occurred during surgery and those for whom extraction suture was not required, were excluded. At least one complication among alveolar osteitis, alveolar inflammation, alveolar infection and dehiscence involved 15.70% of the patients in the test group and 30.70% of the patients in the control group and telephone follow-up proved to be useful in early identification of anomalies in the post-extraction wound healing process. Comparable results were recorded in all extraction subgroups divided according to the type (surgical and non-surgical) and the number (single and multiple) of extractions performed in the same session. Telephone follow-up showed an 8.60 ± 1.17 (0 to 10 score scale) average acceptance. All cases of alveolar osteitis and infection occurred in patients who underwent antibiotic prophylaxis. Telephone follow-up seems to allow early detection of any possible wound healing complications, it is widely accepted by patients and it could therefore be considered a valid method for wound healing monitoring after tooth extractions, due to its effectiveness, feasibility and low costs
Increased growth rate of anodic porous alumina by use of ionic liquid as electrolyte additive
The use of ionic liquids 1-Butyl-3-methylimidazolium 2-(2-methoxyethoxy) ethyl sulfate and 1-Butyl-3-methylimidazolium tetrafluoborate has been tested in the fabrication of anodic porous alumina. The anodizations of the aluminium substrate have been carried out in oxalic acid in galvanostatic mode. During anodization with 1-Butyl-3-methylimidazolium tetrafluoborate added electrolyte, proper tuning of the current density and of the additive concentration resulted in a three-fold increase of the growth rate as compared to the bare acidic solution with the same acid concentration. This did not cause cracks in the film during growth, and did not affect the regular structure of the pores at the interface with the substrate
Funciones Jurisdiccionales y no Jurisdiccionales Atribuidas a un Juzgado de Primera Instancia Mixto en El Salvador
Las actividades del estado son ejercidas por los tres Poderes: Legislativo , Ejecutivo y Judicial, que son los encargados de desarrollarlos diferentes momentos de esas actividades. Una primera función la desarrolla el Poder Legislativo cuando elabora la norma que tutela individuales y colectivos, estableciendo reglas generales a la conducta de los particulares , asà como también a la suya propia. Esta norma se refiere a la conducta, exterior del hombre en
cuanto cumple los deberes que: la norma le impone, y se adapta voluntariamente a ella , satisfaciendo expontáneamente los intereses de aquéllos a quienes es dirigida
Unbundling in optical access networks: Focus on hybrid fiber-VDSL and TWDM-PON2014 Fotonica AEIT Italian Conference on Photonics Technologies
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