263,602 research outputs found
Melanopsis magyari Neubauer, Harzhauser, Georgopoulou, Mandic & Kroh, 2014, nom. nov.
No full textMelanopsis magyari nom. nov. Melanopsis Klerići inermis Brusina 1897: 8, pl. 7, figs 7–8 [non Melanopsis inermis Handmann, 1882]. Melanopsis klerići inermis —Wenz 1929: 2767 [non Melanopsis inermis Handmann, 1882]. Etymology. In honor of Imre Magyar (Hungarian Natural History Museum, Budapest), an expert for development of the Pannonian Basin and its mollusk fauna. Type locality. Begaljica, Belgrade, Serbia. Age. Middle Pannonian (= Middle Tortonian). Holotype. Croatian Natural History Museum, Zagreb, coll. no. 3020-666 (Milan et al. 1974, p. 93). Discussion. As a species-group name " inermis " is preoccupied by Melanopsis inermis Handmann, 1882, making Melanopsis klerici inermis Brusina, 1897 a primary homonym.Published as part of Neubauer, Thomas A., Harzhauser, Mathias, Georgopoulou, Elisavet, Mandic, Oleg & Kroh, Andreas, 2014, Replacement names and nomenclatural comments for problematic species-group names in Europe's Neogene freshwater Gastropoda, pp. 453-468 in Zootaxa 3785 (3) on page 457, DOI: 10.11646/zootaxa.3785.3.7, http://zenodo.org/record/491336
3D modeling, reconstruction and analysis of environments assisted by multi-sensorial data processing
No full textIl lavoro descritto in questa Tesi di Dottorato ricade nella categoria generale della Computer Vision. Più specificamente, le tematiche di modellazione, ricostruzione e analisi tridimensionale di ambienti sono state trattate da molteplici punti di vista in modo tale da investigare metodologie efficaci ed efficienti per acquisire i dati ed effettuare le opportune elaborazioni successive. L'attività di costruzione di modelli mediante sistemi di visione automatici induce la ricerca costante di tecniche innovative che garantiscano sia il rispetto dei requisiti di sistema, sia la capacità di gestire in maniera efficiente e ottimizzata notevoli moli di dati.
I problemi da risolvere in questo ambito spaziano dalla modellazione dello sfondo di una scena fino al tracking di un oggetto, dall'analisi di una nuvola di punti 3D fino all'identificazione di un movimento, una traiettoria o una caratteristica distintiva di un oggetto in uno spazio tridimensionale. Tutti questi compiti sono connessi a problemi aperti nel campo dell'elaborazione di immagini e video, dal momento che un'implementazione efficiente è strettamente connessa all'abilità di un sistema di rappresentare correttamente una scena complessa o di interpretare efficacemente la semantica di un video acquisito. Per questa ragione, lo scopo generale di questo lavoro è l'analisi di situazioni complesse (ad esempio indoor, outdoor, con e senza controllo di illuminazione, con parecchi oggetti in movimento etc...) tramite metodi innovativi di acquisizione e analisi dei dati.
Allo stato attuale esistono due tipi di nuvole di punti – dense e sparse – classificate in base al numero di punti 3D che sono contenuti in una acquisizione. Entrambe le tipologie di dato sono state trattate durante il lavoro, comprese le opportune metodologie per trattare ognuna di queste.
I sensori basati sui laser sono largamente impiegati nella creazione di modelli tridimensionali di una scena, dal momento che sono in grado di fornire informazioni dettagliate (nuvole di punti dense) circa la profondità di un oggetto che viene illuminato dalla sorgente luminosa, garantendo una delle due seguenti proprietà: elevato throughput del sensore o un largo campo di vista fino a 360°.
Il primo obiettivo del lavoro ha riguardato la progettazione, la prototipazione e il test di un sensore 3D catadiottrico omnidirezionale miniaturizzato, capace di fornire un elevato throughput e un largo campo di vista. Inoltre, una nuova metodologia per la registrazione di nuvole di punti dense è stata investigata e dettagliata. I risultati ottenuti sono di rilevante interesse poiché suggeriscono e incentivano l'utilizzo di tali sistemi in scenari industriali per scopi di monitoraggio, per effettuare controlli non distruttivi o – più genericamente – analisi degli oggetti.
Un'altra tecnica nota per risolvere il problema della modellazione tridimensionale è la stereovisione, che viene impiegata per valutare la distanza di un punto simultaneamente catturato da due o più sensori (telecamere). La stereovisione evita l'utilizzo di sorgenti laser, ma produce dati altamente ridondanti che devono essere elaborati per ricavare una nuvola di punti sparsa. Infatti, è obbligatorio collezionare ed elaborare almeno due differenti flussi video per ottenere informazioni 3D sulla scena ripresa, senza considerare lo sforzo necessario a stabilire le corrispondenze tra i punti di due viste differenti.
Il secondo obiettivo del lavoro ha riguardato la progettazione e lo sviluppo di un prototipo semi ingegnerizzato di sistema stereo per la valutazione di situazioni complesse, applicato al contesto sportivo (in particolare al tennis). Tale sistema è in grado di analizzare tattiche di gioco di un giocatore mediante inferenze logiche che vengono effettuate dopo aver eseguito specifiche query per combinare i dati estratti da ogni modulo software implementato secondo le specifiche dettagliate da un esperto di dominio.
Riassumendo, il lavoro è stato incentrato alla progettazione ed implementazione di sistemi intelligenti per l'analisi di scene complesse mediante l'utilizzo di dati 3D. Questo implica l'investigazione di nuove tecniche di analisi dei dati e l'ottimizzazione degli algoritmi già noti in letteratura. Infatti, una volta che la nuvola di punti è stata prodotta, c'è la necessità di elaborarla opportunamente per compiere azioni di alto livello, come ad esempio l'identificazione di un oggetto o di un soggetto, il suo tracciamento nello spazio 3D o l'analisi semantica della scena.The work described in this thesis falls in the general category of computer vision. More specifically, 3D modeling, reconstruction and analysis of environments is treated from multiple points of view in order to provide effective and efficient methods to capture data and perform complex processing tasks. Building a model by means of an automated machine vision system induces the research of constantly new techniques to make the final system both able to fulfill the requirements and optimized to efficiently perform proper tasks.
The problems that need to be solved relatively to these topics spread from the background modeling of a scene to moving object tracking, from 3D point cloud analysis to the identification of a motion, a trajectory or a particular feature of an object in the three dimensional space. All these tasks are related to open problems in the image/video processing field, since their efficient implementation is strictly related to the ability of a system to correctly represent a 3D complex scene or to the effective understanding of the semantics of an acquired video. For this reason, the main focus of this thesis is on the analysis of complex situations (i.e. indoor, outdoor, with and without controlled illumination, with many moving subjects) by means of innovative data acquisition and processing techniques.
Two types of point clouds actually exist - dense and sparse - depending on the number of 3D points that are contained in the acquisition. Both of them will be treated in this thesis, along with proper methodologies to deal with the specific type of data.
Laser based sensors are largely employed to create a 3D model of a generic scene, since they are able to provide detailed information (the so called Dense point clouds) about the depth of an object that is illuminated by the light source, guaranteeing one of the two following capabilities: high data throughput or large sensor field of view, up to 360°.
The first objective of this thesis will be the design, prototype and test of a miniaturized omnidirectional 3D catadioptric sensor capable of both high throughput and large field of view. Also, a new methodology to perform 3D dense point clouds registration will be investigated and detailed. Such systems are of relevant interest and can be effectively employed in industrial applications for monitoring purposes, to perform non destructive tests, quality control or - more generally - objects analysis.
Another well known technique used to solve the 3D modeling problem is stereovision, that is used to evaluate the depth information about a point that is simultaneously captured by two or more sensors (cameras). Stereovision avoids the use of laser sources, but produces highly redundant data that needs to be exploited to compute a sparse point cloud. In fact, it is mandatory to collect and process at least two distinct videos to obtain 3D information about the scene, regardless the effort that is needed to estabilish the correct correspondence between points from distinct views.
The other objective of this thesis will be the design and development of a semi-engineered stereo system prototype for evaluating complex situations, applied to the sportive context (in particular, the tennis one). This system will be able to analyze game tactics of a specific player by logical inferences that will take place after having executed specific queries that should properly combine data extracted from each software module.
In summary, the aim of this thesis is the design and development of intelligent systems for the analysis of complex scenes by using 3D information. This leads to the study of novel techniques, as well as the optimization of known algorithms. In fact, once the 3D point cloud is extracted, it needs to be appropriately processed to perform, for example, the identification of an object or a subject, its tracking in the 3D space or the semantic analysis of the scene. The ability of interpreting a scene via software starting from the output of a camera or a depth sensor is an ambitious objective of certain scientific interest. Nevertheless, it is necessary to develop new methodologies as well as optimize and revise the known ones to achieve this goal, because semantic analysis highly depends on all the other software modules of the vision system (both 2D or 3D). Good models and effective processing algorithms are the keys to enable reliable high level modules on complex systems
Melanopsis vrcinensis Neubauer, Harzhauser, Georgopoulou, Mandic & Kroh, 2014, nom. nov.
No full text<i>Melanopsis vrcinensis</i> nom. nov. <p> <i>Melanopsis</i> (<i>Melanoptychia</i>) <i>glabra</i> Pavlović 1927: 60, pl. 6, figs 18–19 [non <i>Melanopsis glabra</i> Brusina, 1874]. <i>Melanopsis</i> (<i>Melanoptychia</i>) <i>glabra</i> Pavlović 1928: 38, pl. 6, figs 18–19 [non <i>Melanopsis glabra</i> Brusina, 1874].</p> <p> <b>Etymology.</b> After the nearby village Vrčin.</p> <p> <b>Type locality.</b> Karagača near Vrčin, Belgrade, Serbia.</p> <p> <b>Age.</b> Middle Pannonian (= Middle Tortonian) (after Stevanović 1985).</p> <p> <b>Holotype.</b> Natural History Museum, Belgrade, coll. no. 209 (Milošević 1962, p. 23).</p> <p> <b>Discussion.</b> This species is a primary homonym of <i>Melanopsis glabra</i> Brusina, 1874. Wenz (1929, p. 2649) later ranked it as subspecies of <i>Melanopsis abbreviata</i> Brusina, 1874.</p>Published as part of <i>Neubauer, Thomas A., Harzhauser, Mathias, Georgopoulou, Elisavet, Mandic, Oleg & Kroh, Andreas, 2014, Replacement names and nomenclatural comments for problematic species-group names in Europe's Neogene freshwater Gastropoda, pp. 453-468 in Zootaxa 3785 (3)</i> on page 457, DOI: 10.11646/zootaxa.3785.3.7, <a href="http://zenodo.org/record/4913363">http://zenodo.org/record/4913363</a>
Viviparus lubenescuae Neubauer, Harzhauser, Georgopoulou, Mandic & Kroh, 2014, nom. nov.
No full text<i>Viviparus lubenescuae</i> nom. nov. <p> <i>Viviparus conicus</i> Lubenescu & Zazuleac 1985: 100, pl. 23, figs 5–19 [non <i>Vivipara conica</i> Pavlović, 1903].</p> <p> <b>Etymology.</b> In honor of Victoria Lubenescu (Bucharest), who studied the viviparids of the Dacian Basin and first described this species.</p> <p> <b>Type locality.</b> Mănăstirea Dintr-un Lemn along Runcu brook, near Dezrobiţi village, Vâlcea, Romania.</p> <p> <b>Age.</b> Lower Dacian (= Getian, middle Zanclean).</p> <p> <b>Holotype.</b> Institut de Géologie et Géophysique, Bucharest, coll. no. 17056.</p> <p> <b>Discussion.</b> Here the same rules apply as for the case of <i>Viviparus muscelensis</i> above: <i>Viviparus conicus</i> Lubenescu & Zazuleac, 1985 is a primary homonym of <i>Viviparus conicus</i> Pavlović, 1903 from the Pliocene of Orahovac in the Metohia Basin, Kosovo (see also Wenz 1928, p. 2307).</p>Published as part of <i>Neubauer, Thomas A., Harzhauser, Mathias, Georgopoulou, Elisavet, Mandic, Oleg & Kroh, Andreas, 2014, Replacement names and nomenclatural comments for problematic species-group names in Europe's Neogene freshwater Gastropoda, pp. 453-468 in Zootaxa 3785 (3)</i> on page 455, DOI: 10.11646/zootaxa.3785.3.7, <a href="http://zenodo.org/record/4913363">http://zenodo.org/record/4913363</a>
Melanopsis anistratenkoi Neubauer, Harzhauser, Georgopoulou, Mandic & Kroh, 2014, nom. nov.
No full text<i>Melanopsis anistratenkoi</i> nom. nov. <p> <i>Melanopsis</i> (<i>Duabiana</i>) <i>cylindrica</i> Anistratenko 1993: 69 [non <i>Lyrcea cylindrica</i> Stoliczka, 1862].</p> <p> <b>Etymology.</b> In honor of Vitaliy V. Anistratenko (Schmalhausen Institute of Zoology of the Ukrainian National Academy, Kiev), who greatly contributed to our knowledge about the fossil and recent mollusk fauna from eastern Europe.</p> <p> <b>Type locality.</b> Mok'vi monastery by the Duab River, Abkhazia, Georgia.</p> <p> <b>Age.</b> Duab beds, Kimmerian (= middle-late Zanclean).</p> <p> <b>Holotype.</b> Schmalhausen Institute of Zoology of National Academy of Sciences of Ukraine, Kiev, coll. no. 22/VI 1989.</p> <p> <b>Discussion.</b> The species by Anistratenko constitutes a secondary homonym of <i>Melanopsis cylindrica</i> (Stoliczka, 1862). The latter species was introduced within <i>Lyrcaea</i> (misspelt " <i>Lyrcea</i> " by Stoliczka), which is considered a junior synonym of <i>Melanopsis</i> (Wenz 1929, p. 2647). Today it is undoubtedly referred to <i>Melanopsis</i>.</p>Published as part of <i>Neubauer, Thomas A., Harzhauser, Mathias, Georgopoulou, Elisavet, Mandic, Oleg & Kroh, Andreas, 2014, Replacement names and nomenclatural comments for problematic species-group names in Europe's Neogene freshwater Gastropoda, pp. 453-468 in Zootaxa 3785 (3)</i> on page 456, DOI: 10.11646/zootaxa.3785.3.7, <a href="http://zenodo.org/record/4913363">http://zenodo.org/record/4913363</a>
Theodoxus pseudodacicus Neubauer, Harzhauser, Georgopoulou, Mandic & Kroh, 2014, nom. nov.
No full text<i>Theodoxus pseudodacicus</i> nom. nov. <p> <i>Theodoxus</i> (<i>Theodoxus</i>) <i>dacicus</i> Pană 2003: 301, pl. 1, figs 7–8 [non <i>Theodoxus dacicus</i> Jekelius, 1944].</p> <p> <b>Etymology.</b> To denote that this species is not <i>Theodoxus dacicus</i>.</p> <p> <b>Type locality.</b> Vintilă Vodă in Slănic valley, Buzău, Romania.</p> <p> <b>Age.</b> Lower Romanian (= Sienisian, upper Zanclean).</p> <p> <b>Holotype.</b> Laboratory of Paleontology, Bucharest, coll. no. 623, L. P. B. III g.</p> <p> <b>Discussion.</b> This species was introduced by Pană (2003) for a Pliocene taxon from the Dacian Basin. It is a primary homonym of <i>Theodoxus dacicus</i> Jekelius, 1944 (p. 114), a different species described from the Late Miocene of Soceni in the Pannonian Basin. The Miocene species was classified by Papp (1953, p. 99) as a subspecies of <i>T. leobersdorfensis</i> (Handmann, 1887).</p> <p> When introducing this species Pană (2003) referred to it as " <i>Theodoxus (Theodoxus) dacicus</i> n. sp. Pană 1989 ". This leads to some confusion, since she properly described and illustrated the taxon and indicated a holotype in 2003, but gave no reference to a work from 1989. The only publication from Pană (1989) known to us deals with different taxa. Maybe she introduced the name (as <i>nomen nudum</i>) in an unpublished thesis.</p>Published as part of <i>Neubauer, Thomas A., Harzhauser, Mathias, Georgopoulou, Elisavet, Mandic, Oleg & Kroh, Andreas, 2014, Replacement names and nomenclatural comments for problematic species-group names in Europe's Neogene freshwater Gastropoda, pp. 453-468 in Zootaxa 3785 (3)</i> on page 454, DOI: 10.11646/zootaxa.3785.3.7, <a href="http://zenodo.org/record/4913363">http://zenodo.org/record/4913363</a>
Viviparus wesselinghi Neubauer, Harzhauser, Georgopoulou, Mandic & Kroh, 2014, nom. nov.
No full text<i>Viviparus wesselinghi</i> nom. nov. <p> <i>Viviparus neumayri</i> var. <i>incerta</i> Macarovici 1940: 322, pl. 5, figs 72–76 [non <i>Vivipara incerta</i> Fuchs, 1877].</p> <p> <i>Viviparus</i> (<i>Viviparus</i>) <i>achatinoides incertus</i> — Taboyakova 1964: 43, pl. 1, figs 1–12, pl. 2, figs 1, 4–6 (cum syn.) [non <i>Vivipara incerta</i> Fuchs, 1877].</p> <p> <i>Viviparus</i> (<i>Viviparus</i>) <i>achatinoides incertus</i> — Roshka 1973: 113, pl. 13, figs 150–152 [non <i>Vivipara incerta</i> Fuchs, 1877].</p> <p> <i>Viviparus incertus</i> — Lubenescu & Zazuleac 1985: 83, pl. 14, figs 6–21 [non <i>Vivipara incerta</i> Fuchs, 1877].</p> <p> <i>Viviparus</i> (<i>Viviparus</i>) <i>incertus</i> — Gozhik & Datsenko 2007: 39, pl. 52, fig. 25, pl. 53, figs 2, 6, 11, pl. 58, fig. 8 [non <i>Vivipara incerta</i> Fuchs, 1877].</p> <p> <b>Etymology.</b> In honor of Frank P. Wesselingh (Naturalis, National Museum of Natural History, Leiden), a leading expert on Cenozoic freshwater mollusks.</p> <p> <b>Type locality.</b> Vladychen' (= Impuţita) near Izmayil, Odessa, Ukraine.</p> <p> <b>Age.</b> Dacian (= middle Zanclean).</p> <p> <b>Lectotype.</b> No holotype was designated in the original publication; Taboyakova (1964, p. 43) designated the specimen illustrated in Macarovici (1940, pl. 5, fig. 72) as lectotype.</p> <p> <b>Discussion.</b> As Macarovici introduced this taxon as variety before 1961, it is available as species-group name (ICZN 1999, Article 45.6.4). Here again the rule "difference in spelling of generic names" (ICZN 1999, Article 57.5) applies and <i>Viviparus incerta</i> [wrong gender] Macarovici, 1940 is a primary homonym of <i>Vivipara incerta</i> Fuchs, 1877 [= <i>Viviparus incertus</i>].</p>Published as part of <i>Neubauer, Thomas A., Harzhauser, Mathias, Georgopoulou, Elisavet, Mandic, Oleg & Kroh, Andreas, 2014, Replacement names and nomenclatural comments for problematic species-group names in Europe's Neogene freshwater Gastropoda, pp. 453-468 in Zootaxa 3785 (3)</i> on page 456, DOI: 10.11646/zootaxa.3785.3.7, <a href="http://zenodo.org/record/4913363">http://zenodo.org/record/4913363</a>
Correspondence between Dominik Mandic and Josip Hamm in the Archive of the Franciscan Province of Herzegovina
No full textU ostavštini jednoga od najpoznatijih hercegovačkih franjevaca, povjesničara Dominika Mandića nalaze se i pisma koja je izmijenio s uglednim hrvatskim slavistom Josipom Hammom, a koja su nastala u razdoblju od 1951. do 1965. godine. Radi se o ukupno 18 pisama, a osim njih sačuvane su i četiri razglednice te tri brzojava. Pisma su opsegom od jedne do tri stranice a pisana su s obostranim velikim poštovanjem i u prijateljskome tonu. Korespondencija Mandić – Hamm daje uvid u njihovu suradnju u znanstveno-istraživačkome radu, te donosi promišljanja ove dvojice znanstvenika o temama koje su bile predmet zajedničkoga znanstvenog interesa kao što su Crkva bosanska i čakavština u Hrvata. Osim izmjenjivanja misli o pojedinim temama njihova znanstvenoga interesa, evidentna je i pomoć u prikupljanju potrebitih izvora i knjiga za njihov znanstveno-istraživački rad, ali i onih koje je Mandić prikupljao za franjevačku knjižnicu u Rimu i Chicagu. Osim toga, u pismima se također spominju i neki tadašnji znanstvenici s kojima su Mandić i Hamm surađivali, kao i neki segmenti iz njihova privatnoga života.Legacy of one of the most famous Herzegovinian Franciscans, historian Dominik Mandic contains the letters he exchanged with the prominent Croatian Slavist Josip Hamm. There are 18 letters in total and they were written in the period from 1951 to 1956. Besides the letters, four postcards and three telegrams were also preserved. Letters are mostly one to three pages long and they were written with mutual great respect and friendship. Correspondence Mandic – Hamm gives an insight into opinions of these two scientists on the topics that were the subject of the common scientific interest such as the Bosnian Church and Chakavian dialect in Croatia. Besides exchanging thoughts on certain topics of their scientific interest, it is evident that they helped each other in collecting necessary sources and books for their scientific-research work as well as those Mandic was collecting for the Franciscan library in Rome and Chicago. The letters also mention some scientists of that time, whom Mandic and Hamm were cooperating with, as well as some segments from their private life
Leopold Bogdan Mandic, the forerunner of spiritual ecumenism and the importance of spiritual ecumenism today
No full textU radu se govori o Leopoldu Bogdanu Mandiću i duhovnom ekumenizmu i u njegovo vrijeme i danas. Rad uz uvod i zaključak ima tri poglavlja. U prvom poglavlju pod naslovom 'Ukratko o životu' autori donose osnovne podatka iz života Leopolda Bogdana Mandića. Drugo poglavlje koje je naslovljeno 'Preteča duhovnog ekumenizma', autori preko tema katolički pogled na ekumenizam u vrijeme Leopolda Mandića; želja za sjedinjenjem s Istokom te Leopold Mandić i duhovni ekumenizam žele, naravno ukratko, prikazati ekumensko 'djelovanje' Bogdana Mandića i njegovu molitvu i žrtvovanje za ekumenizam te naglašavaju važnost osobnog rada na tom području. Treće poglavlje rada govori o važnosti duhovnog ekumenizma danas u kojem se polazi od Drugoga vatikanskog sabora, pa preko pape Ivana Pavla II. i pape Franje želi naglasiti važnost duhovnog ekumenizma u suvremenom svijetu.The paper deals with Leopold Bogdan Mandic and spiritual ecumenism both in his time and today. The work, with the introduction and conclusion, has three chapters. In the first chapter, titled “Briefly about His Life”, the authors bring basic data from the life of Leopold Bogdan Mandic. In the second chapter, which is titled “The Forerunner of Spiritual Ecumenism”, the authors discuss the themes of a Catholic view of ecumenism at the time of Leopold Mandić, the desire of Leopold Mandić to unite with the East and spiritual ecumenism, trying to portray the ecumenical "activity" of Bogdan Mandic and his prayer and sacrifice for ecumenism and to emphasize the importance of his personal work in this area. The third chapter discusses the importance of spiritual ecumenism today, starting from the Second Vatican Council, to Pope John Paul II and Pope Francis, in order to highlight the importance of spiritual ecumenism in the modern world
Evaluation of a Titanium Surface Treated with Hydroxyapatite Nanocrystals on Osteoblastic Cell Behavior: An In Vitro Study
No full textPurpose: In the context of macrostructural and microstructural modifications to the design of dental implants, surface topography changes with different treatments have the purpose of accelerating bone formation. The aim of this study was to evaluate in vitro the influence of aggregated hydroxyapatite nanocrystals to surfaces treated with double acid etching (Nano) on osteoblastic cell behavior compared with a conventional double acid-etched surface (DE). Materials and Methods: Commercially pure Grade 4 titanium discs (6 x 2 mm) were selected, and both cell proliferation and viability were assessed at 24, 48, and 72 hours using Trypan blue vital dye and MTT, respectively. The expression of type I collagen and osteopontin on such surfaces was evaluated using ELISA. Immunostaining for fibronectin was also performed. Quantitative data were analyzed statistically using two-way analysis of variance (ANOVA) followed by Bonferroni post-test with a 5% significance level. Results: The results showed that in all evaluated time periods, cells expressed fibronectin on both surfaces. The cells presented greater morphologic spreading on the Nano surface when compared with the conventional DE surface in all assessed times. Increased cell proliferation and viability were detected in the Nano surface (P < .05) when compared with the conventional DE surface, especially after 72 hours. Osteopontin expression was higher after 24 hours in the Nano surface when compared with the conventional DE surface (P < .05). For type I collagen, a higher expression was observed with the Nano surface than with the DE surface, again after 72 hours (P < .05). Conclusion: This in vitro study showed that the treated Nano surface tested promoted increased cell proliferation and viability when compared with the control surface. Additionally, increased cell spreading as well as type I collagen and osteopontin secretion were observed, favoring the early events of osseointegration.Sao Leopoldo Mandic Inst & Res Ctr, Dept Oral Pathol & Cell Biol, Rua Jose Rocha Junqueira 13, BR-13045610 Campinas, SP, BrazilSao Leopoldo Mandic Dent Sch, Dent Surg, Campinas, SP, BrazilSao Leopoldo Mandic Inst & Res Ctr, Dept Implantol, Campinas, SP, BrazilSao Paulo State Univ, Biosci Inst, Biotechnol, Sao Paulo, BrazilSao Paulo State Univ, Biosci Inst, Biotechnol, Sao Paulo, Brazi
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