Search results for "construct"
showing 10 items of 3723 documents
Right-Justified Characterization for Generating Regular Pattern Avoiding Permutations
2017
ECO-method and its corresponding succession rules allow to recursively define and construct combinatorial objects. The induced generating trees can be coded by corresponding pattern avoiding permutations. We refine succession rules by using succession functions in case when avoided patterns are regular or c-regular. Although regular patterns are hard to be recognized in general, we give a characterization for its right-justified property which is a prerequisite in the definition of the regular pattern. Based on this characterization, we show the (c-)regularity for various classes of permutations avoiding sets of patterns with variable lengths. Last, the technique of succession functions per…
The index of stable critical points
2002
Abstract In this paper we show that in dimension greater or equal than 3 the index of a stable critical point can be any integer. More concretely, given any k∈ Z and n⩾3 we construct a C ∞ vector field on R n with a unique critical point which is stable (in positive and negative time) and has index equal to k. This result extends previous ones on the index of stable critical points.
Using Taguchi method for the optimization of processing variables to prepare porous scaffolds by combined melt mixing/particulate leaching
2017
Synthetic biopolymers have made significant inroads into the development of devices for tissue regeneration. In this context, a challenge is the achievement of appropriate properties mimicking the natural extracellular matrix by fabricating scaffolds presenting mechanical properties, specific surface, porosity and pore interconnection adequate for the final application. This study involved a systematic procedure based on Taguchi method for parameters optimization of melt mixing/particulate leaching combined processes aiming to enhance the performance of the scaffolds. In particular, it was evaluated the effect of time and temperature of melt mixing of the poly(lactic acid) matrix with two w…
Assessing interactional skills in a paired speaking test : raters’ interpretation of the construct
2019
The operationalization of interactional competence (IC) within the paired speaking test format allows for a range of interactional skills to be tested. However, in terms of assessment, challenges are posed with regard to the co-constructed nature of IC, making investigations into raters’ perceptions of the construct essential to inform test score interpretation. This qualitative study explores features of IC that raters attended to as they evaluated performances in a paired speaking test, part of a Swedish national test of English as a Foreign Language (EFL). Two groups of raters, 17 EFL teachers from Sweden, using national standards based on the Common European Framework of Reference for L…
Practice and assessment of oral skills in developing online preparatory materials through the InGenio authoring shell
2012
The practice of oral skills is a basic requirement of learning or teaching a new language, as one of the main goals in the field of language learning is developing oral communicative competence, especially needed in contexts where the students¿ L2 is the vehicular language and therefore the main means of interaction. The InGenio online authoring tool allows designers of new materials, as well as language teachers and students, to rethink and imagine new ways of dealing with practice and assessment of listening and speaking skills thanks to the flexibility of its templates, resources and tools. This article explores the ways in which the InGenio utilities, solutions and learning materials ar…
Koncepcje uznania w perspektywie pedagogiki ogólnej jako alternatywa wobec neoliberalnej wizji współczesnego świata
2018
The most important task facing an individual is the work on their own identity – it is a manifestation of self-realization and freedom of a modern man. Recognition as an intersubjective relationship between people is a condition of our identity. A community based on recognition relationships is an alternative to a neo-liberal social concept. Intersubjective relationships of recognition are formed, according to Honneth, in three spheres: in the sphere of intimate relations (family, people that are close to us, significant others), in the sphere of law and in the sphere of economy. We have three areas then, in which, in relations with others, we build our identity: family, law and economy wit…
The Transcultural Community Resilience Scale: Psychometric Properties and Multinational Validity in the Context of the COVID-19 Pandemic
2021
Few instruments assess community resilience. In the midst of the COVID-19 pandemic, the capacity of communities to support resilience of members deserves to be assessed to develop programs for improving mental health of affected populations. This article presents the development of the Transcultural-Community Resilience Scale (T-CRS), its underlying factorial structure and transcultural validity with a multilingual (English, French, Creole, Kinyarwanda), multinational (DR Congo, Haiti, Rwanda, Togo) and multicultural sample affected by this pandemic. A sample of 1,267 participants (40.9% women) were recruited in the four countries: DRC (n = 626, 43.4% women), Haiti (n = 225, 42.0% women), R…
The iGEM Competition
2014
The international Genetically Engineered Machine (iGEM) competition is a well-known example of synthetic biology and a workbench for the development of heterodox, multidisciplinary and frontier work made by undergraduate students. We review the origin, organization and structure of the competition; we describe how an iGEM team can be set in place, and briefly summarize some of the main milestones and challenges of a competition that is only one decade old. We discuss the links of the competition with the Registry of Standard Biological Parts and the flagship role of iGEM as a very trench of the synthetic biology revolution.
Downstream Intra-organizational Product Market Competition Between Employees: A Theoretical Approach
2020
To investigate the downstream internal competition and its effect on firm’s performance comprehensive literature review has been conducted. The concentration is on recognized social dimensions, similar focus is on communications, interactions and interrelationship between departments and business units. The Integration of intra-organizational competition and internal social comparison balances the literature review. Although it is quite controversial to practice and encourage internal competition having it’s sustained effect on behavioral of employees. The basis of literature review relies on human tendency to compare and coordinate work activities inside firm’s boundaries. The literature e…
Metamodelling architectures for complex data integration in systems biology
2010
Systems biology aims at deciphering the functioning of biological systems on the basis of the knowledge of their molecular components and the relations between such components. To address the issues involved, high-throughput technologies are used. Taking advantage of the standards that are being currently developed to achieve consensual representations of technological domains, we present a metamodelling architecture based on these standards. The proposed architecture organises standard-specific metamodels and models into a single hierarchy. Each metamodel describes a consensus that is shared by several models of applications. A metamodel construct for description of faceted element is prop…