Search results for "Cg"
showing 10 items of 999 documents
Adolescent binge-like alcohol exposure dysregulates NPY and CGRP in rats: Behavioural and immunochemical evidence.
2023
Alcohol binge drinking during adolescence impacts affective behaviour, possibly impinging on developing neural substrates processing affective states, including calcitonin gene-related peptide (CGRP) and neuropeptide Y (NPY). Here, we modelled binge-like alcohol exposure in adolescence, by administering 3.5 g/kg alcohol per os, within 1 h time, to male adolescent rats every other day, from postnatal day 35 to 54. The effects on positive and negative affective behaviour during abstinence were explored, including consummatory behaviour and weight gain; social behaviour in the modified social interaction test; thermal nociception in the tail-flick test; psychosocial stress coping in the reside…
Solving the Balitsky-Kovchegov equation at next to leading order accuracy
2016
We solve the Balitsky-Kovchegov small-x evolution equation in coordinate space. We find that the solution to the equation is unstable when using an initial condition relevant for phenomenological applications at leading order. The problematic behavior is shown to be due to a large double logarithmic contribution. The same problem is found when the evolution of the “conformal dipole” is solved, even though the double logarithmic term is then absent from the evolution equation.
Solvable Models for radiating Black Holes and Area-preserving Diffeomorphisms
1995
Solvable theories of 2D dilaton gravity can be obtained from a Liouville theory by suitable field redefinitions. In this paper we propose a new framework to generate 2D dilaton gravity models which can also be exactly solved in the semiclassical approximation. Our approach is based on the recently introduced scheme to quantize massless scalar fields coupled to 2D gravity maintaining invariance under area-preserving diffeomorphisms and Weyl transformations. Starting from the CGHS model with the new effective action we reestablish the full diffeomorphism invariance by means of an adequate family of field redefinitions. The original theory is therefore mapped into a large family of solvable mo…
Conformal and non-conformal symmetries in 2D dilaton gravity
1996
We introduce new extra symmetry transformations for generic 2D dilaton-gravity models. These symmetries are non-conformal but special linear combinations of them turn out to be the extra (conformal) symmetries of the CGHS model and the model with an exponential potential. We show that one of the non-conformal extra symmetries can be converted into a conformal one by means of adequate field redefinitions involving the metric and the derivatives of the dilaton. Finally, by expressing the Polyakov-Liouville effective action in terms of an auxiliary invariant metric, we construct one-loop models which maintain the extra symmetry of the classical action. © 1997 Elsevier Science B.V.
Cellular automaton for chimera states
2016
A minimalistic model for chimera states is presented. The model is a cellular automaton (CA) which depends on only one adjustable parameter, the range of the nonlocal coupling, and is built from elementary cellular automata and the majority (voting) rule. This suggests the universality of chimera-like behavior from a new point of view: Already simple CA rules based on the majority rule exhibit this behavior. After a short transient, we find chimera states for arbitrary initial conditions, the system spontaneously splitting into stable domains separated by static boundaries, ones synchronously oscillating and the others incoherent. When the coupling range is local, nontrivial coherent struct…
Nuclear modification of forward J/ψ production in proton-nucleus collisions at the LHC
2016
We re-evaluate the nuclear suppression of forward J/ψ production at high energy in the Color Glass Condensate framework. We use the collinear approximation for the projectile proton probed at large x and an up to date dipole cross section fitted to HERA data to describe the target in proton-proton collisions. We show that using the Glauber approach to generalize the proton dipole cross section to the case of a nucleus target leads to a nuclear modification factor much closer to LHC data than previous estimates using the same framework.
Comparaison de la mesure des déformations de fantômes de l’aorte à partir d’image obtenues par IRM et stéréovision
2015
International audience; The study of the wall strain distribution could be helpful to improve the decision criterion for surgery of aortic aneurysm. Recently, numerical simulations can complete the data obtained from imaging measurement in order to develop reliable models. However, the used medical imaging tools are not experimentally validated, in metrological point of view. The aim of this study focused on accuracy and reliability of measurement obtained from kinetic MR sequences. The measures of deformations from MRI were compare to those obtained from stereovision system. Cylindrical phantom of silicone material similar to arterial behavior simulated a symmetric aneurysm was designed. A…
Body composition in children and adolescents residing in southern Europe: Prevalence of overweight and obesity according to different international r…
2019
The objective was to analyze body composition in children and adolescents of Southern Europe to identify prevalence of overweight and obesity. This investigation involved 512 girls and 488 boys between 7-to 19-years. Variables evaluated were Body Mass Index (BMI) and Fat Mass (FM; electrical bioimpedance). The references used to establish prevalence according to BMI were those of the World Health Organization (WHO) and the International Obesity Task Force (IOTF); in the case of FM, the Child Growth Foundation (CGF) reference was used. There were significant differences (p < 0.05) in the prevalence of overweight and obesity between the three classifications (32.3% according to IOTF, 37.3%…
Piecgadīgu bērnu radošās darbības veicināšana pētnieciskajās nodarbībās dabā pirmsskolas iestādē
2017
Darba autors – Maruta Ozoliņa. Darba veids – kvalifikācijas darbs. Studiju programma – pirmsskolas izglītības skolotājs. Darba zinātniskais vadītājs- mg. paed.lektore Rūta Vociša. Darba temats – Piecgadīgu bērnu radošuma veicināšana pētnieciskajās nodarbībās dabā pirmsskolas iestādē. Darba mērķis – Izpētīt piecgadīgu bērnu radošuma veicināšanu pētnieciskajās nodarbībās dabā pirmsskolā. Kvalifikācijas darbs sastāv no divām daļām un apakšnodaļām. Teorētiskā daļa. Šajā daļā tiek aplūkoti atzinumi par radošumu, noskaidroti teorētiskie skaidrojumi par pētniecisko darbību dabā un šo pētījumu ietekmi uz personības attīstību. Darba autore iepazīstina ar psihologu pētījumiem par piecgadīgu bērnu psi…
Piecgadīgu bērnu uzvedības paradumu attīstības veicināšana pedagoģiskajā procesā
2018
Darba autore: Ilze Bleikša Kvalifikācijas darba nosaukums ir „Piecgadīgu bērnu uzvedības paradumu attīstības veicināšana pedagoģiskajā procesā”. Pētījums veikts pirmsskolas izglītības iestādē „X” 4-5 gadīgā vecuma grupā. Kvalifikācijas darba mērķis teorētiski analizēt un praktiski noskaidrot piecgadīgu bērnu uzvedības paradumus pedagoģiskajā procesā pirmsskolas izglītības iestādē „X”. Darba autore nosaka iespējamos piecgadīgu bērnu uzvedības paradumu attīstības veicināšanas pedagoģiskos paņēmienus pedagoģiskajā procesā. Kvalifikācijas darbs izstrādāts divās daļās. Pirmā daļa – teorētiskās literatūras izpēte un analīze, otrajā daļā – empīriskā pētījuma norises apraksts, un tiek analizēti pēt…