Search results for "descriptive"
showing 10 items of 494 documents
Comparative Cytocompatibility and Mineralization Potential of Bio-C Sealer and TotalFill BC Sealer
2019
The aim of this study was to investigate the cytocompatibility and mineralization potential of two premixed hydraulic endodontic sealers compared with an epoxy resin-based root canal sealer. The cellular responses and mineralization capacity were studied in human periodontal ligament stem cells (hPDLSCs) that were exposed to premixed hydraulic sealers, Bio-C Sealer (Angelus, Londrí
La povertà rurale in Africa Sub-sahariana: il caso del Dipartimento della Lekie in Camerun
2021
Questo articolo mette in rilievo le caratteristiche della povertà rurale in Africa sub-sahariana in generale, e nel Dipartimento della Lekie in Camerun in particolare. Il suo interesse sta nel fatto che per meglio combattere la povertà, bisogna innanzitutto capire la sua vera natura e le sue particolari caratteristiche sul territorio d’intervento. Questo studio mira dunque a offrire alla comunità scientifica nonché a vari portatori d’interesse un quadro di riferimento per la definizione di politiche economiche efficaci contro la povertà sul territorio del Dipartimento della Lekie. L’indagine svolta sul cosiddetto territorio ha rilevato, tramite un’analisi descrittiva, che le popolazioni del…
Effects of ions-releasing restorative materials on the dentine bonding longevity of modern universal adhesives after load-cycle and prolonged artific…
2019
This study aimed at evaluating the microtensile bond strength (MTBS) and fractographic features of dentine-bonded specimens created using universal adhesives applied in etch-and-rinse (ER) or self-etching (SE) mode in combination with modern ion-releasing resin-modified glass-ionomer cement (RMGIC)-based materials after load cycling and artificial saliva aging. Two universal adhesives (FTB: Futurabond M+, VOCO, Germany
Student’s voice online: Experiences of PE in Finnish schools
2012
The aim of this descriptive study was to find out how people describe their experiences of physical education (PE) in Internet discussion forums. The data for this study were collected during one randomly chosen week in April 2007 via a GoogleTM search using the Finnish word ‘koululiikunta’ [school PE]. The first 200 hits lead into nine discussion forums, which were analysed by using qualitative content analysis. These nine discussion forums included all together 356 messages. For searching these discussion forums no criteria about the writers’ age, race, class, gender or other were set. The messages were coded with sequential classification and grouped into positive, negative and both posi…
Healthcare Waste Management: What do the Health Workers in a Nigerian Tertiary Hospital Know and Practice
2015
Introduction: Healthcare waste is any solid or liquid waste that is generated in the diagnosis, treatment or immunization of human beings or animals, in research pertaining thereto, or in production or testing of biologicals. Mismanagement of healthcare waste poses risks to people and the environment. Improving the standards of healthcare waste management protects the health and safety of healthcare workers, patients, visitors to healthcare facilities and the general public. This study was carried out to determine the knowledge and practice of healthcare waste management by the healthcare workers in Nnamdi Azikiwe University Teaching Hospital Nnewi, Nigeria. Methods: This was a cross-sectio…
Relationships between core self-evaluation, leader empowering behavior, and job security among Jordan University Hospital nurses
2021
Nurses are facing real stressors due to patients’ needs and leaders’ demands. The aim of this study is to explore the perceived level of core self-evaluation (CSE), leader empowering behavior (LEB), and job security among Jordan University Hospital nurses in Amman, the capital of Jordan. Furthermore, it investigates the relationship between the selected variables. Differences of gender, educational level, experience, and site of work are also examined with job security. Moreover, it evaluates the contribution of CSE, LEB, gender, educational level, experience, and site of work in predicting job security among Jordan University Hospital nurses. A descriptive cross-sectional design was adopte…
Reducing Local Alphabet Size in Recognizable Picture Languages
2021
A recognizable picture language is defined as the projection of a local picture language defined by a set of two-by-two tiles, i.e. by a strictly-locally-testable (SLT) language of order 2. The family of recognizable picture languages is also defined, using larger k by k tiles, \(k>2\), by the projection of the corresponding SLT language. A basic measure of the descriptive complexity of a picture language is given by the size of the SLT alphabet using two-by-two tiles, more precisely by the so-called alphabetic ratio of sizes: SLT-alphabet/picture-alphabet. We study how the alphabetic ratio changes moving from two to larger tile sizes, and we obtain the following result: any recognizable pi…
Extraction of Endmembers from Spectral Mixtures
1999
Abstract Linear spectral mixture modeling (LSMM) divides each ground resolution element into its constituent materials using endmembers which represent the spectral characteristics of the cover types. However, it is difficult to identify and estimate the spectral signature of pure components or endmembers which form the scene, since they vary with the scale and purpose of the study. We propose three different methods to estimate the spectra of pure components from a set of unknown mixture spectra. Two of the methods consist in different optimization procedures based on objective functions defined from the coordinate axes of the dominant factors. The third one consists in the design of a neu…
Evaluation of a Cell-Free Collagen Type I-Based Scaffold for Articular Cartilage Regeneration in an Orthotopic Rat Model.
2020
The management of chondral defects represents a big challenge because of the limited self-healing capacity of cartilage. Many approaches in this field obtained partial satisfactory results. Cartilage tissue engineering, combining innovative scaffolds and stem cells from different sources, emerges as a promising strategy for cartilage regeneration. The aim of this study was to evaluate the capability of a cell-free collagen I-based scaffold to promote cartilaginous repair after orthotopic implantation in vivo. Articular cartilage lesions (ACL) were created at the femoropatellar groove in rat knees and cell free collagen I-based scaffolds (S) were then implanted into right knee defect for the…
Le Curve di Apollonio. Innovazione nei processi risolutivi, il caso della parabola.
2012
This study is connected with the research directed on the solving problem of a graphic representation of geometric objects using the informatics language, particularly the graphic software CAD. The solution of these problems requires a reliable command of stereometry and descriptive geometry and it can extend remarkably the level of external geometric competences. The implementation of the means of ICT has brought a higher effectiveness of graphing mapping processes. The modification of informatics means with the goal to simplify applications of descriptive and projective geometry is also of a great didactical importance. In particular, we focus attention on the treatment of the locus "cone…