Search results for " pea"
showing 10 items of 887 documents
Robust link prediction in criminal networks: A case study of the Sicilian Mafia
2020
Abstract Link prediction exercises may prove particularly challenging with noisy and incomplete networks, such as criminal networks. Also, the link prediction effectiveness may vary across different relations within a social group. We address these issues by assessing the performance of different link prediction algorithms on a mafia organization. The analysis relies on an original dataset manually extracted from the judicial documents of operation “Montagna”, conducted by the Italian law enforcement agencies against individuals affiliated with the Sicilian Mafia. To run our analysis, we extracted two networks: one including meetings and one recording telephone calls among suspects, respect…
TIME-MINIMAL CONTROL OF DISSIPATIVE TWO-LEVEL QUANTUM SYSTEMS: THE INTEGRABLE CASE
2009
The objective of this article is to apply recent developments in geometric optimal control to analyze the time minimum control problem of dissipative two-level quantum systems whose dynamics is governed by the Lindblad equation. We focus our analysis on the case where the extremal Hamiltonian is integrable.
Interrogating witnesses for geometric constraint solving
2012
International audience; Classically, geometric constraint solvers use graph-based methods to decompose systems of geometric constraints. These methods have intrinsic limitations, which the witness method overcomes; a witness is a solution of a variant of the system. This paper details the computation of a basis of the vector space of free infinitesimal motions of a typical witness, and explains how to use this basis to interrogate the witness for dependence detection. The paper shows that the witness method detects all kinds of dependences: structural dependences already detectable by graph-based methods, but also non-structural dependences, due to known or unknown geometric theorems, which…
‘Less Stale, Only Slightly Less Male, but Overwhelmingly Less Pale’: the 2015 New Conservative Brexiters in the House of Commons
2019
AbstractThis article will study the new face of Conservative Euroscepticism in the House of Commons, with a special focus on the 2015 intake of MPs who were supposedly ‘less stale, male and pale’ and their attitudes to the British referendum on the EU. In this respect, this article will also take a specific interest in new Conservative Black and Asian Minority Ethnic (BAME) MPs who turned out to be more active on the ‘leave’ side of the referendum campaign, thus serving as a showcase for the party's strategy of ‘decontaminating’ the Brexit brand and its hyperglobalist geopolitical perspective.
Terrorism communication : characteristics and emerging perspectives in the scientific literature 2002–2011
2013
This paper aims to clarify current knowledge on the contribution of communication to crisis management in the case of terrorism incidents. This is done by means of a systematic review of the scientific literature on terrorism communication over the last 10 years to identify the many challenges facing communication in such crises, and represents the first attempt of its kind. To date, within the literature on terrorism communication, much attention has been paid to chemical, biological, radiological or nuclear hazards. Terrorism crises are complex and challenging. Preparedness for such diverse low-probability high-impact crises can best be included in a wider educative approach. Terrorism cr…
Pourquoi l’urologue doit s’intéresser à l’immunothérapie, quelles sont les indications établies en 2018 et celles en perspectives ?
2018
Resume L’immunotherapie est un concept ancien en oncologie, qui consiste a exploiter l’immunite innee antitumorale comme traitement anti-cancereux. Tandis que les premieres immunotherapies consistaient a stimuler globalement le systeme immunitaire (interleukine, interferon), l’immunotherapie « moderne » consiste a bloquer les mecanismes par lesquels les cellules cancereuses parviennent a echapper a l’immunite antitumorale, pour que les cellules du systeme immunitaire puissent les detecter et les eliminer. Deux voies permettant a la cellule tumorale d’echapper au systeme immunitaire ont ete identifiees : la voie de PD1 et CTLA4 qui sont les cibles des principales molecules faisant l’actualit…
Long-term physical activity modulates brain processing of somatosensory stimuli: Evidence from young male twins.
2016
Leisure-time physical activity is a key contributor to physical and mental health. Yet the role of physical activity in modulating cortical function is poorly known. We investigated whether precognitive sensory brain functions are associated with the level of physical activity. Physical activity history (3-yr-LTMET), physiological measures and somatosensory mismatch response (sMMR) in EEG were recorded in 32 young healthy twins. In all participants, 3-yr-LTMET correlated negatively with body fat%, r = −0.77 and positively with VO2max, r = 0.82. The fat% and VO2max differed between 15 physically active and 17 inactive participants. Trend toward larger sMMR was seen in inactive compared to ac…
Genetic association study of childhood aggression across raters, instruments, and age
2021
AbstractChildhood aggressive behavior (AGG) has a substantial heritability of around 50%. Here we present a genome-wide association meta-analysis (GWAMA) of childhood AGG, in which all phenotype measures across childhood ages from multiple assessors were included. We analyzed phenotype assessments for a total of 328 935 observations from 87 485 children aged between 1.5 and 18 years, while accounting for sample overlap. We also meta-analyzed within subsets of the data, i.e., within rater, instrument and age. SNP-heritability for the overall meta-analysis (AGGoverall) was 3.31% (SE = 0.0038). We found no genome-wide significant SNPs for AGGoverall. The gene-based analysis returned three sign…
International descriptive and interventional survey for oxycholesterol determination by gas- and liquid-chromatographic methods
2018
International audience; Increasing numbers of laboratories develop new methods based on gas-liquid and high-performance liquid chromatography to determine serum concentrations of oxygenated cholesterol metabolites such as 7alpha-, 24(S)-, and 27-hydroxycholesterol. We initiated a first international descriptive oxycholesterol (OCS) survey in 2013 and a second interventional survey 2014 in order to compare levels of OCS reported by different laboratories and to define possible sources of analytical errors. In 2013 a set of two lyophilized serum pools (A and B) was sent to nine laboratories in different countries for OCS measurement utilizing their own standard stock solutions. In 2014 eleven…
Sicilian Opuntia ficus‐indica Seed Oil: Fatty Acid Composition and Bio‐Economical Aspects
2017
The fatty acid composition of the seed oil from the yellow fruit of Opuntia ficus-indica widely grown in Sicily shows several distinctive features. The oil obtained comprises significant amounts of vaccenic acid along with several other unsaturated fatty acids showing several health benefits, including linolenic, trans-13-octadecenoic, gondoic, 7Z,10Z-hexadecadienoic, and gadoleic acid. The economic analysis shows the significant advantage of carrying out the extraction from fruits considered unfit for consumption. Practical applications: The fatty acid composition of Sicilian Opuntia ficus-indica seed oil is similar to that of fruits grown in Tunisia, while it has a completely different pr…