44,038 research outputs found
SHAPING THE PINK: RETROSPECTIVE INSIGHTS INTO PAPILLA MORPHOLOGY AROUND ADJACENT IMPLANTS AND NATURAL TEETH
No full textAim: this retrospective study aimed to evaluate the influence of clinical, anatomical, surgical, and prosthetic parameters on the inter-implant and peri-implant papilla morphology between two adjacent implants and tooth-implant.
Methods: 82 patients were selected (M = 40; F = 42) with a mean age of 67 years presenting 122 inter-implant papillae and 123 tooth-implant papillae. Clinical and radiographic data were retrospectively collected, including demographic charac- teristics, prosthetic design, distance from contact point to bone and interproximal distances. Papilla height was classified with the Nordland & Tarnow and measured in millimeters. Ra- diographic measurements were performed using ImageJ soft- ware. The acquired data was statistically analyzed.
Results: preliminary analysis indicated that inter-implant pa- pilla height was significantly associated with vertical and hori- zontal distances from the contact point to the bone crest. Ad- ditional influencing factors included the emergence profile, the presence of platform switching, and the periodontal pheno- type. The surgical technique showed limited impact on papilla formation.
Conclusions: inter-implant papilla height is a multifactorial phenomenon. Vertical and horizontal bone relationships are the most predictive indicators, prosthetic design and soft tissue phenotype also play a relevant role.
Pre-surgical planning is essential to optimize aesthetic out- comes
Erratum to: Effect of moderate red wine intake on cardiac prognosis after recent acute myocardial infarction of subjects with Type 2 diabetes mellitus (Diabetic Medicine, (2006), 23, 9, (974-981), 10.1111/j.1464-5491.2006.01886.x)
No full textIn an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola.In an article by Marfella et al, the author name C. Saron is incorrect and should be listed as C. Sardu. Therefore the correct author list is: R. Marfella, F. Cacciapuoti, M. Siniscalchi, F. C. Sasso, F. Marchese, F. Cinone, E. Musacchio, M. A. Marfella, L. Ruggiero, G. Chiorazzo, D. Liberti, G. Chiorazzo, G. F. Nicoletti, C. Sardu, F. D'Andrea, C. Ammendola, M. Verza and L. Coppola
Joint near-lossless compression and watermarking of still images for authentication and tamper localization
No full textA system is presented to jointly achieve imagewatermarking and compression. The watermark is a fragile one being intended for authentication purposes. The watermarked and compressed images are fully compliant with the JPEG-LS standard, the only price to pay being a slight reduction of compression efficiency and an additional distortion that can be anyway tuned to grant a maximum preset error. Watermark detection is possible both in the compressed and in the pixel domain, thus increasing the flexibility and usability of the system. The system is expressly designed to be used in remote sensing and telemedicine applications, hence we designed it in such a way that the maximum compression and watermarking error can be strictly controlled (near-losslesscompression and watermarking). Experimental results show the ability of the system to detect tampering and to limit the peak error between the original and the processed images
PM and PM-Less Motors for Electric Vehicles: A Comparative Analysis
No full textThe automotive industry is focusing on developing more efficient and sustainable powertrains in response to the increasing demand for electric vehicles. The benefits and draw-backs of using alternative motor designs, along with the growing trend among motor manufacturers to reduce their reliance on Permanent Magnets are explored by the authors. The analysis includes electromagnetic studies aimed at identifying the operational limits of each type of motor. Specifically, the comparison involves an Interior Permanent Magnet motor, which utilizes NdFeB magnets, and various permanent magnet less motor designs, such as the Electrically Excited Synchronous Motor, the Hybrid Excited Permanent Magnet motor, the Reluctance motor, and the Permanent Magnet assisted Reluctance motor
Callistethus yalizo Filippini, Galante
No full text<i>Callistethus yalizo</i> Filippini, Galante, & Micó, new species <p>Fig. 6</p> <p> <b>Type material.</b> Holotype: ♂ "P.N. Tapanti, La Represa, A. C. Amistad, Prov. Carta, COSTA RICA. 1650 m. 23 Mar 1994, G. Mora, A. Solis, E. Ulate, L N 185900_563360 # 2783 / INBIOCRI001964129" deposited in INBIO. Paratypes (8): 1♂ "R. Grande de Orosi, desde Puente R. Dos Amigos hasta la Represa, Prov. Carta, COSTA RICA. 1400-1800m. MAR 1995. R. Delgado. L_N_186600_562000 #4418 / INBIOCRI002253282"; 1♂ " Costa Rica, Cartago Prov., Tapanti N. Pk. Dam area, vi-4-1997 RW Hamilton / RWHC " INBIO; 1♂ "Cerro Chompipe, Res. Biol. Chompipe, Prov. Here, COSTA RICA, J. F. Corrales, 7 Abr 1991, L- N 230000_528000 / INBIOCRI000183743"; 1♀ "Quebrada Segunda, P. N. Tapanti, 1250M, Prov. Cartago, Costa Rica, Mar 1992, R. Vargas, L-N 194000,560000 / INBIOCRI000894947"; 1♂ "Esperanza del Guarco, Cartago, Costa Rica. 2300 m 5/ 6/2008 Leg. A. García, M.Zumbado / CEUA 00106167"; 1♀ " COSTA RICA. Prov. Cartago. P.N. Tapanti. La Esperanza del Guarco. 2334m. 5 MAY 2008. A. García, M.A. Zumbado. Tp. Luz 2. L_N_188418_552219 #93739 / CEUA 00106168"; 1♂ "V. Platanar P.N. Juan Castro Blanco (Costa Rica) 1800 m 29-1-2006. T. luz (18:30-21:00). Leg.: Micó, García, Galante / CEUA 00003201"; 1♂ " MUSEO DE INSECTOS UNIVERSIDAD DE COSTA RICA. COSTA RICA, PROV. Cartago. Río Macho, Orosí. 4 may. 1973. E. Monge." MUCR.</p> <p> <b>Holotype male description.</b> Body shape oval. Length 15.1 mm; width 8.6 mm.</p> <p>Color. Head, pronotum, and scutellum metallic green. Margins of pronotum yellow, with green/bronze luster. Elytra and pygidium metallic green with brown luster. Metasternum metallic green, legs (including coxae) and lateral sternites yellow, with green base and apex; protibiae and tarsi metallic green, claws red. Abdominal sternites reddish brown with green/bronze luster. Antennae red with club dark brown.</p> <p>Clypeus nearly rectangular, ratio width/length 2.3; surface granulate; anterior margin slightly sinuate. Frons with dense, coarse punctures; rest of head with sparse, fine punctures. Ocular canthus long, tapering towards apex; apex acute. Eyes small, interocular ratio (interocular width/width of eye) 3.0. Antenna: ratio funiculus/club 0.6.</p> <p>Pronotum width 1.8 times length; in dorsal view broadest at base. Lateral margins rounded. Anterior angles quadrate, with rounded vertex; posterior angles obtuse, with rounded vertex. Basal margin without subapical sulcus, sinuate. Entire surface with small, shallow, sparse punctures.</p> <p>Scutellum. Shape subpentagonal, with a median sulcus and sparse, deep punctures on the entire surface; ratio width/length 1.5.</p> <p>Elytra. Surface with costae defined by rows of shallows punctures. Interstices with 3–4 (1st interstice) or 1–2 (2nd–5th interstices) rows of sparse shallow punctures.</p> <p>Pygidium granulate with a shallow median sulcus, setae short on disc and longer on margins. Ratio width/ length 1.6.</p> <p>Mesosternal process short, not going beyond anterior margin of mesocoxae, uniformly wide (half as wide as metafemura) with rounded apex; width at base: 0.6 mm (Fig. 26). Mesometasternal suture well defined. Abdominal sternites with sparse, shallow punctures; laterally forming 6–7 rows of punctures. Short, blonde setae arranged in 1 row per sternite, denser on sides (in 2–3 rows). Terminal sternite with sparse, shallow punctures; apical margin height 2/3 of basal portion, surface smooth; apical membrane narrow. Abdominal spiracle 6th convex.</p> <p>Legs. Protibia bidentate (Fig. 12); apical tooth long, oblique in relation to the vertical axis of protibia, nearly straight. Basal tooth obtuse, blunt, positioned at same level with internal apex of protibia. Metatibia very thin, slightly narrower subapically. Ratio length/width 5.1. Both external carinae well defined. Surface punctate. Protarsal claws: external claw curved; internal claw bifurcate, with branches strongly diverging; upper branch of equal length and 2/3 the width of the lower branch, inferior margin sinuate.</p> <p>Aedeagus (Fig. 18). Parameres nearly bilobed in a lateral view, ventral plate partially fused with parameres. Endophallus (Fig. 24): with 1 long, sinuate sacculus, with a row of small, globoid diverticles in basal half, partially covered with setae; ejaculatory duct opening ventrally at base, laterally with a small diverticle covered in long setae.</p> <p> <b>Variation.</b> Elytra from red with green luster to metallic green. Abdominal sternites from ochre to dark brown with green or bronze luster. Female similar to male. Antennal club slightly shorter than in male. Eyes smaller than in male. Protibia (Fig. 12): apical tooth longer and wider, basal tooth above the internal apex. Protarsal claw: internal claw narrower than in male, bifurcation narrower, inferior margin curved. Margin of terminal sternite narrower than in male.</p> <p>Body length 15.1–16.2 mm; width 8.6–9.5 mm. Clypeus w/l: 2.2–2.3. Interocular ratio: 3.0–3.1 (male), 3.5–4.2 (female). Antenna: ratio funiculus/club: 0.6–0.8. Pronotum w/l: 1.8–1.9. Scutellum w/l: 1.3–1.5. Pygidium w/l: 1.5–1.7. Width of mesosternal process at base: 0.4–0. 6 mm. Metatibia w/l: 4.6–5.4.</p> <p> <b>Diagnosis.</b> Metallic green color; elytra with shallow punctures that give an irregular appearance; mesosternal process short; parameres nearly bilobed in a lateral view, ventral plate partially fused with parameres.</p> <p> <b>Etymology.</b> Latinized from the Greek verb <i>yalízo</i>, to be green like glass, treated as a noun in apposition, for the green shiny color of this species.</p> <p> <b>Distribution.</b> Central and Talamanca mountain ranges, Costa Rica, from 200–2300 m (Fig. 37).</p>Published as part of <i>Filippini, Valentina, Galante, Eduardo & Micó, Estefanía, 2015, Description of six new species of Anomalini from Costa Rica (Coleoptera: Scarabaeidae: Rutelinae) in Zootaxa 3948 (1)</i>, DOI: 10.11646/zootaxa.3948.1.2, <a href="http://zenodo.org/record/244003">http://zenodo.org/record/244003</a>
Funzioni di costo con jacobiano asimmetrico ed equilibrio nelle reti di trasporto stradale urbano
No full textIn this paper, after a synthetic review of the main “non stationary” cost functions, the problem of determining the sensitivity of the equilibrium vector, with respect to different cost functions, is considered. The results of the comparison show that the “non stationary” cost function are interchangeable with respect to the network assignment problem. Differences between the equilibrium vectors derived by a function of the “non stationary” category with the function of Webster depend on the value of the so-called “point of tangency” and from the load on the network. SOMMARIO. In questa nota è stato esaminato l’utilizzo delle funzioni di costo denominate “non stazionarie” nel problema del calcolo del vettore di equilibrio in una rete di trasporto: nell’ambito di un approccio deterministico all’equilibrio. Dopo una presentazione delle principali funzioni di costo di tipo "non stazionario", viene eseguito un confronto fra i vettori di equilibrio ottenuti con funzioni di costo del gruppo “non stazionario” e con la funzioni di costo di Webster; che è invece di tipo stazionario. I confronti fra i vettori di equilibrio sono stati eseguiti utilizzando una rete in cui le intersezioni sono state rappresentate in modo dettagliato: il problema di assegnazione, risolto tramite il procedimento di diagonalizzazione, è perciò a funzioni di costo non separabili. In questo caso, in generale, non è detto che il punto di equilibrio sia unico, e nemmeno, in generale, che il procedimento di diagonalizzazione converga. I risultati empirici ottenuti mettono però chiaramente in evidenza che, nel caso della rete particolare esaminata, il procedimento di diagonalizzazione converge ad un unico punto partendo da numerosi punti iniziali diversi: da questi risultati empirici si evince che, nel caso esaminato, il vettore di equilibrio è unico.
I risultati del confronto mettono in evidenza che i vettori di equilibrio, ottenuti con funzioni di costo appartenenti tutte al gruppo “non stazionario”, non differiscono sostanzialmente fra loro: sia se la rete è carica, sia in caso contrario. Questo fatto mette in evidenza che le funzioni di costo del gruppo "non stazionario" sono praticamente intercambiabili, almeno nell’ambito di un loro utilizzo nel problema dell’assegnazione: naturalmente maggiore sicurezza su questa conclusione si potrebbe avere solo dopo sperimentazioni su altre reti. Le differenze fra i vettori di equilibrio ottenuti con la funzione di costo di Webster e quelli ottenuti con funzioni del gruppo “non stazionario” sono anche esse abbastanza contenute se però: la rete non è molto carica e viene scelto in modo opportuno il cosiddetto “punto di tangenza” della funzione di Webster; il “punto di tangenza” è il grado di saturazione, vicino ad 1, ma inferiore all'unità, a partire del quale si estende la funzione di Webster considerando la tangente in tale punto calcolata.
Le differenze nei vettori di equilibrio aumentano al crescere della domanda sulla rete (nella rete esaminata è stato considerato un aumento del 20% per tutta la matrice O-D): il confronto fra la funzioni di costo di Webster e quelle del gruppo non stazionario mette in evidenza delle differenze più marcate che nel caso di domanda senza aumento, queste differenze inoltre dipendono dalla scelta del "punto di tangenza"; ma ancora più marcate risultano le differenze all’interno della categoria costituita dalla sola funzione di Webster utilizzando valori diversi del “punto di tangenza”. Pertanto per la funzione di costo di Webster non appare trascurabile l’impatto sul vettore di equilibrio della scelta del cosiddetto “punto di tangenza”: i confronti eseguiti portano a concludere che la scelta di “punti di tangenza ” diversi porta, in pratica, a funzioni di costo che sono sostanzialmente diverse. La funzione di costo di Webster con “punto di tangenza” pari a 0,95 è quella che meglio approssima quelle del gruppo “non stazionario”
On the use of reciprocal filter against WiFi packets for passive radar
No full textQuesto articolo descrive un innovativo schema unificato di elaborazione del segnale per radar passivi basati su WiFi al fine di limitarne la complessità e migliorarne l'idoneità per applicazioni civili a corto raggio. A tal fine, si studia l'utilizzo di una strategia di filtraggio reciproco come alternativa al filtraggio adattato convenzionale nello stadio di compressione in range. Insieme al noto vantaggio di una notevole capacità di controllo dei lobi laterali per la risultante risposta range-Doppler, viene dimostrato che l'uso di un filtro reciproco fornisce ulteriori vantaggi per lo specifico sensore oggetto di questo studio. In particolare, consente di semplificare la fase di cancellazione del disturbo e di implementare un'architettura di elaborazione del segnale unificata in grado di gestire i diversi schemi di modulazione tipicamente adottati nelle trasmissioni WiFi. Vengono inoltre proposti opportuni aggiustamenti al filtro reciproco teorico al fine di far fronte alla perdita intrinseca in termini di rapporto potenza segnale-a-rumore. L'efficacia dello schema di elaborazione del segnale proposto che comprende la strategia di filtraggio reciproco è dimostrata rispetto a set di dati simulati e sperimentali.This paper derives a novel unified signal processing scheme for WiFi-based passive radar in order to limit its complexity and enhance its suitability for short range civilian applications. To this purpose, the exploitation of a reciprocal filtering strategy is investigated as an alternative to conventional matched filtering at the range compression stage. Along with the well-known advantage of a remarkable sidelobes control capability for the resulting range-Doppler response, the use of a reciprocal filter is shown to provide additional benefits for the specific sensor subject of this study. Specifically, it allows to streamline the disturbance cancellation stage and to implement a unified signal processing architecture which is capable to handle the different modulation schemes typically adopted in WiFi transmissions. Appropriate adjustments are also proposed to the theoretical reciprocal filter in order to cope with the inherent loss in terms of signal-to-noise power ratio. The effectiveness of the proposed signal processing scheme encompassing the reciprocal filtering strategy is proved against both simulated and experimental datasets
Stima del peso all'età di svezzamento e capacità materna - 4th World Italian Beef Cattle Congress
No full textAnomala pincelada Filippini, Galante
No full text<i>Anomala pincelada</i> Filippini, Galante, & Micó, new species <p>Fig. 4</p> <p> <b>Material examined.</b> Holotype: ♂"Fca. Jenny, 30 km N de Liberia, P.N. Guanacaste, Prov. Guan., COSTA RICA. 18-25 Abr 1993, E. Araya, L- N 316200_364400 / INBIOCRI001167801" deposited in INBIO.</p> <p>Paratypes (9): 1♂ "3 Km este de Cuajiniquil, 300m, Prov. Guanacaste, Costa Rica, 25 jun 1992, III curso Parataxon. L-N 325600_355200 / INBIOCRI000863924"; 1♂ "Santa Rosa National Park Guanacaste Prov. COSTA RICA. 9-11 May 1980 DH Janzen & W Hallwachs / INBIOCRI001116980"; 1♂, 1♀ "Fca. Jenny, 30 km N de Liberia, P.N. Guanacaste, Prov. Guan., COSTA RICA. 9-14 May 1993. E. Araya, L-N 316200_364400" INBIOCRI001183402 and INBIOCRI001183321; 1♀ "Tierras Morenas, Rio San Lorenzo, Tenorio, Prov. Guana, COSTA RICA, 1050m. May 1993. G. Rodriguez, L S 283950_424500 # 2118 / INBIOCRI001180936"; 1♂ "Sector Las Pailas, P. N. Guanacaste, A. C. Guanacaste, Prov. Guana, COSTA RICA. 800 m. 6-26 Jun 1994, K. Taylor, L N 309500_389500 # 3063 / INBIOCRI001909257"; 2♀ "Finca Jenny, 30 km N de Liberia, P.N. Guanacaste, Prov. Guan., COSTA RICA. 18-25 Abr 1993, E. Araya, L- N 316200_364400" INBIOCRI001167798 and CEUA 00106161; 1♂ "Est. Murcielago, 8 km S. O. de Cuajiniquil, Prov. Guana, COSTA RICA. 100m. 16 Jun- 4 Jul 1993. F. Quesada, L N 320300_347200 # 2177 / CEUA 00106160".</p> <p> <b>Holotype male description.</b> Body shape elongate. Length 13.2 mm. Width 7.9 mm.</p> <p>Color. Head reddish brown. Pronotum ochre with an irregular median brown macula and small maculae on lateral foveae. Scutellum dark brown. Elytra ochre with a dark brown macula at each side of scutellum and dark stripes on apical third of first interstice, from basal to apical calli and near lateral margins. Pygidium ochre. Legs ochre with base and apex of tibiae dark brown; protarsi and mesotarsi reddish brown, metatarsi dark brown. Venter ochre.</p> <p>Clypeus trapezoidal, with anterior angles widely curved; surface densely punctate-reticulate, flat. Anterior margin straight, clypeus anteriorly thin. Clypeus ratio width/length 2.1. Frons densely punctate, flat. Ocular canthum long, thin, with acute apex. Interocular ratio (interocular width/width of eye): 2.6. Antenna: ratio funiculus/club 0.8.</p> <p>Pronotum subtrapezoidal, ratio width/length 1.7, lateral margins regularly convex. Anterior angles quadrate and blunt. Posterior angles obtuse and blunt. Basal margin sinuate, subapical bead complete. Surface with fine, dense punctures.</p> <p>Scutellum. Shape subtriangular, with rounded sides and blunt apex. Ratio width/length 1.4. Surface densely punctate.</p> <p>Elytra with costae defined by regular rows of punctures, subsutural interstices with 2–3 rows of punctures; maximum width towards apex.</p> <p>Pygidium with coalescing punctures and long setae at apical margin. Ratio width/length 1.6.</p> <p>Space between the mesocoxae narrow, flat. Mesometasternal suture well defined, at base of mesocoxae. Abdominal sternites with 1 row of setae and 2–3 rows of sparse, fine punctures per sternite. Terminal sternite punctate with subapical bead narrow and sinuate, apical membrane wide.</p> <p>Protibia (Fig. 10) tridentate; apical tooth long and curved; middle tooth below internal apex of protibia, triangular in shape, acute. Metatibia stout, fusiform, ratio length/width 3.0. First external carina consists of a row of sparse setae, surface punctate above second external carina and rugose below. Protarsal claws: internal claw bifurcate, with upper branch of same length and half the width of the lower branch. Inferior margin with a sharp angle near base.</p> <p>Aedeagus (Fig. 16): parameres deeply and widely sinuate anteriorly in a lateral view, becoming nearly bifurcate. Endophallus (Fig. 22) with 1 long lateral sacculus tapering at apex; ejaculatory duct opening on the other side, at base; 1 small diverticle with long spines ventrally at base.</p> <p> <b>Variation.</b> Macula on pronotal disc of different size, from a subpentagonal macula not reaching posterior margin to covering most of the surface with ochre sides; a median narrow, faint, lighter band may be present; maculae on elytra of variable length; metatibia from ochre to red with darker apex. Female similar to male, protibia (Fig. 10) with longer and wider apical tooth; internal protarsal claw with curved inferior margin.</p> <p>Body length 13.2–16.1 mm, body width 7.9–9.2 mm. Clypeus w/l: 2.0–2.3. Interocular ratio (interocular width/width of eye): 2.5–2.9. Antenna: ratio funiculus/club 0.7–0.8. Pronotum w/l: 1.7–1.8. Scutellum w/l: 1.4– 1.6. Pygidium w/l: 1.5–1.6. Metatibia l/w: 2.5–3.0.</p> <p> <b>Diagnosis.</b> Externally nearly identical to <i>A. inconstans</i> Burmeister, 1844 (Colombia, MLUH), it is separated from this species by the shape of male genitalia, which has bifurcated apex of parameres, whereas <i>A. inconstans</i> has parameres with thin and curved apex, blunt and wide ventral angle, and a frontal lobe-like expansion on anterior part of ventral margin (Fig. 33). Specimens from Mexico, Paraguay, Guatemala, and Venezuela from MNHUB collection, also similar to <i>A. inconstans,</i> all show different aedeagi, so these species are part of a large and widely distributed species complex.</p> <p> <b>Etymology.</b> Latinized from Spanish noun <i>pincelada</i>, brush stroke, for the elytral pattern. This name should be treated as a noun in apposition.</p> <p> <b>Distribution.</b> Guanacaste mountain range, from 200–600 m (Fig. 35).</p>Published as part of <i>Filippini, Valentina, Galante, Eduardo & Micó, Estefanía, 2015, Description of six new species of Anomalini from Costa Rica (Coleoptera: Scarabaeidae: Rutelinae) in Zootaxa 3948 (1)</i>, DOI: 10.11646/zootaxa.3948.1.2, <a href="http://zenodo.org/record/244003">http://zenodo.org/record/244003</a>
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