Search results for " Definition"
showing 10 items of 162 documents
Tensor tomography: Progress and challenges
2013
We survey recent progress in the problem of recovering a tensor field from its integrals along geodesics. We also propose several open problems.
A Survey on how to Cross-Reference Web Information Sources
2015
International audience; The goal of giving information a well-defined meaning is currently shared by different research communities. Once information has a well-defined meaning, it can be searched and retrieved more effectively. Therefore, this paper is a survey about the methods that compare different textual information sources in order to determine whether they address a similar information or not. The improvement of the studied methods will eventually lead to increase the efficiency of documentary research. In order to achieve this goal, the first category of methods focuses on semantic measure definitions. A second category of methods focuses on paraphrase identification techniques, an…
Measurement Uncertainty of Harmonic Emission Indicators based on IEEE Std. 1459-2010
2020
The study presented in this paper is aimed at analyzing the measurement uncertainty impact on the evaluation of some power ratio parameters for harmonic emissions assessment based on IEEE Std. 1459-2010 apparent power decomposition. In addition to power factors for line utilization and harmonic pollution levels evaluation defined in the Standard, the study covers also some new parameters, which have been introduced by the authors as IEEE Std. 1459-2010 power quantities ratios. The measurement of the aforesaid parameters is implemented on a PC-based wattmeter, in order to investigate the measurement uncertainty impact on the evaluation of the power ratios. The obtained results show that, in …
The metabolic syndrome: Definition, diagnosis and management
2008
The metabolic syndrome (MetS) constitutes a major public health problem in the developed countries.(1) It is cited with different names, such as syndrome X, insulin resistance syndrome, Reaven's syndrome or CHAOS (Australia). MetS increases the cardiovascular risk, but with specific lifestyle changes and individualized drug treatment the development of serious vascular complications can be avoided. In the last years, MetS has become a prevalent clinical condition. Therefore, it is necessary to create a complete document on the diagnosis and clinical management of MetS to avoid the confusion that derives from the vast amount of scientific papers, different revisions and definitions of the sy…
QuBiLS-MIDAS: A parallel free-software for molecular descriptors computation based on multilinear algebraic maps
2014
The present report introduces the QuBiLS-MIDAS software belonging to the ToMoCoMD-CARDD suite for the calculation of three-dimensional molecular descriptors (MDs) based on the two-linear (bilinear), three-linear, and four-linear (multilinear or N-linear) algebraic forms. Thus, it is unique software that computes these tensor-based indices. These descriptors, establish relations for two, three, and four atoms by using several (dis-)similarity metrics or multimetrics, matrix transformations, cutoffs, local calculations and aggregation operators. The theoretical background of these N-linear indices is also presented. The QuBiLS-MIDAS software was developed in the Java programming language and …
Project report : Lessons learned from terminology harmonisation
2022
A common understanding of language and the meaning of concepts is needed for communications in general, and can be crucial to save lives in large rescue operations. Redningshåndboka (the National Rescue handbook) provides a common glossary for first responders’ communications across all sectors in training and practice. However, today each sector maintains their own glossaries, acronyms and jargon, causing potential misunderstandings in joint operations. In this report we outline lessons learned from national and international standardisation and additional practical project outcomes to contribute to terminology harmonisation from the INSITU project.
Defining Life as a Non-Essentialist Natural Kind
2019
Abstract: The increasing number of proposals to define the concept of life in biology has led some authors to consider this task useless and without sense. All sceptics base their argument on the idea that life is a natural kind with a strong metaphysical commitment. Considering this, the aim of this paper is to explore the concept of life as a non-essentialist natural kind. It is intended to highlight that complex scientific concepts are better understood from points of view that are not constrained by the rigid frameworks of essentialism and the realism/conventionalism dichotomy. Keywords: natural kind, definition of life, essentialism, operational definitions.
Re-Clustering tool using an Open-Reference method that improves OTU definition
2019
International audience; 1.Environmental microbial communities are now widely studied using metabarcoding approaches, thanks to the democratization of high‐throughput DNA sequencing technologies. The massive number of reads produced with these technologies requires bioinformatic solutions to be treated. A key step in the analysis is to cluster reads into Operational Taxonomic Units (or OTUs) and thus reduce the amount of data for downstream analyses. Due to the important impact of the clustering method on the quantity and quality of OTUs, finding an equilibrium between the reliability and time‐consuming nature of the chosen strategy is a real challenge. The present article proposes a new pos…
Attributes and definitions of locomotor capacity in older people: a World Health Organisation (WHO) locomotor capacity working group meeting report
2022
not available
Controversies on the origin of life
2005
Different viewpoints, many with deep philosophical and historical roots, have shaped the scientific study of the origin of life. Some of these argue that primeval life was based on simple anaerobic microorganisms able to use a wide inventory of abiotic organic materials (i.e. a heterotrophic origin), whereas others invoke a more sophisticated organization, one that thrived on simple inorganic molecules (i.e. an autotrophic origin). While many scientists assume that life started as a self-replicative molecule, the first gene, a primitive self-catalytic metabolic network has also been proposed as a starting point. Even the emergence of the cell itself is a contentious issue: did boundaries an…