Search results for "INTEGRATION"
showing 10 items of 1465 documents
Bone-Healing Pattern on the Surface of Titanium Implants at Cortical and Marrow Compartments in Two Topographic Sites: an Experimental Study in Rabbi…
2018
This study evaluates the bone-healing patterns on the surface of titanium implants at the cortical and marrow compartments of bicortically-installed implants in the diaphysis and metaphysis of rabbit tibiae. In 27 New Zealand rabbits, two implants, one for each macro-design and with equal resorbable blasted media (RBM) implant surfaces, were randomly implanted in the diaphysis or metaphysis of each tibia. The flaps were sutured to allow submerged healing. The animals were sacrificed after two, four, or eight weeks, with nine weeks used for the period of healing. Ground sections were prepared and analyzed. No statistically significant differences were found between the two groups for newly f…
Anterolateral thigh perforator flap made by customized 3D-printing fabrication of fixed positioning guide for oromaxillofacial reconstruction:a preli…
2022
Oromaxillofacial carcinomas frequently result in serious tissue defect due to enlarged resection for treating their extensive invasion, which require challenging reconstruction. Three-dimensional (3D) printing is an advanced technology which has greatly promoted the progress of craniomaxillofacial reconstructive surgery. This present study aimed to investigate the advantages of anterolateral thigh (ALT) perforator flap manufactured by 3D printing fixed positioning guide template in curing oromaxillofacial defect. Twenty patients with oromaxillofacial defects resulted from severe primary malignant tumors were divided into experimental group assisted by digital technique (n=8) and controlled …
Surface treatments for titanium implants
2015
The implant surface is considered one of the most important factors for osteointegration. A factor that proved to be crucial for a better, faster osteointegration is surface roughness. It has been widely shown that an increase in roughness corresponds to a better microretention between implant and bone macromolecules. Titanium surface can be prepared with different techniques in order to obtain an optimal degree of surface roughness, an increase of TiO2 thickness, or even to create a coating of osteoconductive material. This article describes the most widely used and investigated techniques to modify a titanium implant surface: Addition techniques: titanium oxide layer thickening, TPS (Tita…
Effects of diabetes on the osseointegration of dental implants
2007
The increased prevalence of diabetes mellitus has become a public health problem. Hyperglycaemia entails a rise in the morbidity and mortality of these patients. Although a direct relationship with periodontal disease has already been shown, little is known about the results of dental implants in diabetics. The present paper reviews the bibliography linking the effect of diabetes on the osseointegration of implants and the healing of soft tissue. In experimental models of diabetes, a reduced level of bone-implant contact has been shown, and this can be reversed by means of treatment with insulin. Compared with the general population, a higher failure rate is seen in diabetic patients. Most …
Matemātikas mācību satura integrācija informātikas mācību stundās vispārējās vidējās izglītības posmā
2018
Darba autors: Deniss Kļukins Darba nosaukums: Matemātikas mācību satura integrācija informātikas mācību stundās vispārējās vidējās izglītības posmā Darba mērķis: Teorētiski pamatot un praktiski pārbaudīt matemātikas mācību satura integrācijas nepieciešamību un iespējas mācību stundas vispārējās vidējās izglītības posmā. Pētījuma ietvaros ir analizētas mācību satura un tā integrācijas iespējas caur integrācijas būtības un veidu apskati, mācību priekšmeta “Informātika” mācību satura analīzi, mācību priekšmeta “Matemātika” mācību satura analīzi un matemātikas mācību satura integrācijas iespēju informātikas mācību stundās analīzi. Pētījuma laikā pārbaudīta mācību satura praktiskā integrācija ca…
Assessing osseointegration of metallic implants with boronized surface treatment
2020
Background Modification of endosteal implants through surface treatments have been investigated to improve osseointegration. Boronization has demonstrated favorable mechanical properties, but limited studies have assessed translational, in vivo outcomes. This study investigated the effect of implant surface boronization on bone healing. Material and Methods Two implant surface roughness profiles (acid etched, machined) in CP titanium (type II) alloy implants were boronized by solid-state diffusion until 10-15µm boron coating was achieved. The surface-treated implants were placed bilaterally into 5 adult sheep ilia for three and six weeks. Four implant groups were tested: boronized machined …
Combined TL and 10B-alanine ESR dosimetry for BNCT
2004
The dosimetric technique described in this paper is based on electron spin resonance (ESR) detectors using an alanine-boric compound acid enriched with 1 0 B, and beryllium oxide thermoluminescent (TL) detectors; with this combined dosimetry, it is possible to discriminate the doses due to thermal neutrons and gamma radiation in a mixed field. Irradiations were carried out inside the thermal column of a TRIGA MARK II water-pool-type research nuclear reactor, also used for Boron Neutron Capture therapy (BNCT) applications, with thermal neutron fluence from 10 9 to 10 1 4 n t h cm - 2 . The ESR dosemeters using the alanine-boron compound indicated ESR signals about 30-fold stronger than those…
Les formations professionnelles de l'enseignement supérieur en France au prisme de l'insertion et de la mobilité sociale des diplômés
2014
La professionnalisation des formations dans l'enseignement supérieur en France s'est développée ces dernières décennies avec pour objectif d'améliorer l'employabilité des jeunes diplômés dans un contexte de dégradation de leurs conditions d'insertion. À partir des trois dernières enquêtes Génération du Céreq, ce travail questionne la performance de ces filières professionnelles par rapport aux filières plus académiques de l'enseignement supérieur, en période de crise économique. Certaines formations, comme par exemple les licences professionnelles, garantissent toujours de bonnes conditions d'insertion, pour autant les effets concernant la mobilité sociale en début de carrière, sont plus nu…
Associations among immigrants at the crossroads.Transnational action and co-option risks
2016
Resumen En este artículo tratamos de contribuir al debate en torno al papel de las asociaciones de inmigrantes en las sociedades de origen y destino, así como puente entre las mismas. El creciente número y potencial de las asociaciones ha puesto de relieve su contribución al desarrollo y a la dinamización de las sociedades civiles de uno y otro lado. Sin embargo, este proceso no está exento de limitaciones y dinámicas que pueden entrar en contradicción con el papel fundacional de las mismas asociaciones. La interacción con las instituciones de los países de origen de origen y destino, y el acceso a programas y fondos públicos estatales, habría generado un escenario en el que las asociacione…
Postawy rodzicielskie reprezentowane przez rodziców uczniów szkół integracyjnych
2016
Family perceived as a basic environment conditioning the overall develoment of a child is important not only for healthy, normally developing children; in the upbringing of a child with a disability the role and importance of the family are greatly increased. Children with disabilities are particularly at risk of the consequences of negative attitudes of parents, because the attitudes of relatives, especially the parents', determine a child's proper development, and they are crucial for the effects obtained in the process of rehabilitation.