Search results for "Dual"

Experimental and human population studies of DNA lesions in healthy individuals

2017

DNA damage is a valuable biomarker in human molecular epidemiology being associated with many diseases. However, the level of DNA damage is influenced also by intrinsic features of healthy individuals: heredity, sex, age and body type. This review summarizes data on DNA breakage level in healthy humans depending on their characteristics and compares these data with experimental studies and observations on animals. Several strains of laboratory animals manifest an increased level of DNA breaks. In humans, some gene polymorphisms are associated with an increased level of DNA damage; however it is believed that environmental factors are more important. In animals, a higher level of DNA breakag…

Tumor Heterogeneity, Single-Cell Sequencing, and Drug Resistance

2016

Tumor heterogeneity has been compared with Darwinian evolution and survival of the fittest. The evolutionary ecosystem of tumors consisting of heterogeneous tumor cell populations represents a considerable challenge to tumor therapy, since all genetically and phenotypically different subpopulations have to be efficiently killed by therapy. Otherwise, even small surviving subpopulations may cause repopulation and refractory tumors. Single-cell sequencing allows for a better understanding of the genomic principles of tumor heterogeneity and represents the basis for more successful tumor treatments. The isolation and sequencing of single tumor cells still represents a considerable technical ch…

Current concepts in the prevention of pathogen transmission via blood/plasma-derived products for bleeding disorders

2015

The pathogen safety of blood/plasma-derived products has historically been a subject of significant concern to the medical community, Measures such as donor selection and blood screening have contributed to increase the safety of these products, but pathogen transmission does still occur. Reasons for this include lack of sensitivity/specificity of current screening methods, lack of reliable screening tests for some pathogens (e.g. prions) and the fact that many potentially harmful infectious agents are not routinely screened for. Methods for the purification/inactivation of blood/plasma-derived products have been developed in order to further reduce the residual risk, but low concentrations…

Dual energy computed tomography: A breakthrough for gout?

2019

Joint Bone Spine - In Press.Proof corrected by the author Available online since dimanche 22 decembre 2019

Gout misdiagnosis due to dual-energy computed tomography artefact

2018

Low-Cost Robotic Guide Based on a Motor Imagery Brain–Computer Interface for Arm Assisted Rehabilitation

2020

Motor imagery has been suggested as an efficient alternative to improve the rehabilitation process of affected limbs. In this study, a low-cost robotic guide is implemented so that linear position can be controlled via the user&rsquo

Trade, financial openness and dual banking economies: Evidence from GCC Region

2021

Abstract The recent wave of liberalization in Gulf Cooperation Council (GCC) countries has opened up a debate on the role of Islamic finance in the financial development of an economy. Using a comprehensive dataset of 43 Islamic and 49 conventional banks for the period 2007–2015, in this paper, we investigate the impact of trade and financial openness on financial development in the GCC region. We find that trade and financial openness have a positive effect on the profitability of both banking systems, while the interaction term of openness is negative for the profitability of Islamic banks. Moreover, trade and financial openness affect Islamic banks differently than conventional banks. No…

The measurement of populist attitudes: Testing cross-national scales using item response theory

2019

Recent research in the populism literature has devoted considerable efforts to the conceptualisation and examination of populism on the individual level, that is, populist attitudes. Despite rapid progress in the field, questions of adequate measurement and empirical evaluation of measures of populist attitudes remain scarce. Seeking to remedy these shortcomings, we apply a cross-national measurement model, using item response theory, to six established and two new populist indicators. Drawing on a cross-national survey (nine European countries, n = 18,368), we engage in a four-folded analysis. First, we examine the commonly used 6-item populism scale. Second, we expand the measurement wit…

Dynamic Functional Connectivity Captures Individuals’ Unique Brain Signatures

2020

Recent neuroimaging evidence suggest that there exists a unique individual-specific functional connectivity (FC) pattern consistent across tasks. The objective of our study is to utilize FC patterns to identify an individual using a supervised machine learning approach. To this end, we use two previously published data sets that comprises resting-state and task-based fMRI responses. We use static FC measures as input to a linear classifier to evaluate its performance. We additionally extend this analysis to capture dynamic FC using two approaches: the common sliding window approach and the more recent phase synchrony-based measure. We found that the classification models using dynamic FC pa…

Some reflections on semantic–pragmatic cycles

2020

Abstract This paper explores novel ways to consider semantic–pragmatic cycles using a dual strategy: an inwards strategy, whereby the distinctive traits of a pragmatic cycle are established, and an outwards strategy, whereby the categories that delimit semantic–pragmatic cycles are described. The result of this exploration is the distinction between “pragmatic cycle”, “replication”, “concomitance” and “paradigmatic increase” as four different yet related processes. In addition, this study integrates Construction Grammar into the description of each process and shows that the study of semantic–pragmatic cycles can benefit from a constructional approach, adopting Traugott and Trousdale’s (201…