Search results for "Computer Graphics"
showing 10 items of 530 documents
QuBiLS-MAS, open source multi-platform software for atom- and bond-based topological (2D) and chiral (2.5D) algebraic molecular descriptors computati…
2017
Background In previous reports, Marrero-Ponce et al. proposed algebraic formalisms for characterizing topological (2D) and chiral (2.5D) molecular features through atom- and bond-based ToMoCoMD-CARDD (acronym for Topological Molecular Computational Design-Computer Aided Rational Drug Design) molecular descriptors. These MDs codify molecular information based on the bilinear, quadratic and linear algebraic forms and the graph-theoretical electronic-density and edge-adjacency matrices in order to consider atom- and bond-based relations, respectively. These MDs have been successfully applied in the screening of chemical compounds of different therapeutic applications ranging from antimalarials…
An Efficient Cooperative Smearing Technique for Degraded Historical Documents Images Segmentation
2020
Segmentation is one of the critical steps in historical document image analysis systems that determines the quality of the search, understanding, recognition and interpretation processes. It allows isolating the objects to be considered and separating the regions of interest (paragraphs, lines, words and characters) from other entities (figures, graphs, tables, etc.). This stage follows the thresholding, which aims to improve the quality of the document and to extract its background from its foreground, also for detecting and correcting the skew that leads to redress the document. Here, a hybrid method is proposed in order to locate words and characters in both handwritten and printed docu…
University Teachers as Developers of Technology-Enhanced Teaching—Do Beliefs Matter?
2019
Previous research has identified a well-established link between teachers' beliefs and the practical implications of technology-enhanced learning (TEL). Until recently, there have been few studies ...
Translating cultures, cultures in translation
2021
Among its several definitions, translation can be understood as ‘a rendering from one language into another’, probably the most immediate sense, as ‘a change to a different substance, form, or appe...
How to study bureaucracies ethnographically?
2019
We propose a short epistemological and methodological reflection on the challenges of doing ethnographical research on public services (‘bureaucracies’) from the inside. We start from the recognition of the double face of bureaucracy, as a form of domination and oppression as well as of protection and liberation, and all the ambivalences this dialectic entails. We argue that, in classical Malinowskian fashion, the anthropology of bureaucracy should take bureaucrat as the ‘natives’, and acknowledge their agency. This means adopting basic anthropological postures: the natives (i.e. the bureaucrats) must have good reasons for their seemingly ‘absurd’ (or arbitrary) practices, once you underst…
Suffering as an anchor of critique. The place of critique in critical discourse studies
2017
If we engage in reflection on standards of critique, we are entering the terrain of metaethics, or the question of which ethical standards we should accept. The question is not only, in the sense o...
Development of Professional Identity During Teacher's Practice
2016
Abstract The article focuses on issues of the development of professional identity of English teachers-to-be in Latvia. This development is an ongoing process which starts during teacher education. The article aims to examine emerging professional identity and how reflective self-evaluation during teacher's practice done with the help of reflective activities facilitates professional development of student teachers. Specific attention is paid to the self-reflection on teacher's practice experiences done with the help of the EPOSTL. It is also concerned with the ways how university can improve student's awareness of their identity. The conducted case study involved questionnaire, content ana…
Social representations of COVID-19 (Representaciones sociales del COVID-19)
2020
This is a reflection on the communication modalities of dissemination, propagation and propaganda as they have manifested in the COVID-19 pandemic. It describes the anchoring of the representations...
Real-time simulation of tissue deformation for the nasal endoscopy simulator (NES).
1999
Endonasal sinus surgery requires a great amount of training before it can be adequately performed. The complicated anatomy involved, the proximity of relevant structures, and the variability of the anatomy due to inborn or iatrogenic variations make several complications possible. Today, cadaver dissections are the "gold standard" for surgical training. To overcome the drawbacks of traditional training methods, the Fraunhofer Institute for Computer Graphics is currently developing a highly interactive medical simulation system for nasal endoscopy and endonasal sinus surgery, in cooperation with the Mainz University Hospital. For the simulation of a rhinoscopic procedure, not only are the re…
SfM Techniques Applied in Bad Lighting and Reflection Conditions: The Case of a Museum Artwork
2019
In recent years, SfM techniques have been widely used especially in the field of Cultural Heritage. Some applications, however, remain undefined in cases where the boundary conditions are not suitable for the technique. Examples of this are instances where there are poor lighting conditions and the presence of glass and reflective surfaces. This paper presents a case study where SfM is applied, using a DSLR camera (Nikon D5200), to the “Head of Hades” inside a glass theca and under a large number of light sources at different distances and of different intensities and sizes. The geometric evaluation has been made comparing the DSLR camera model against the 3D data acquired with structured l…