Search results for "ICT."
showing 10 items of 7941 documents
Ceramide Mediates Acute Oxygen Sensing in Vascular Tissues
2014
AbstractAims: A variety of vessels, such as resistance pulmonary arteries (PA) and fetoplacental arteries and the ductus arteriosus (DA) are specialized in sensing and responding to changes in oxygen tension. Despite opposite stimuli, normoxic DA contraction and hypoxic fetoplacental and PA vasoconstriction share some mechanistic features. Activation of neutral sphingomyelinase (nSMase) and subsequent ceramide production has been involved in hypoxic pulmonary vasoconstriction (HPV). Herein we aimed to study the possible role of nSMase-derived ceramide as a common factor in the acute oxygen-sensing function of specialized vascular tissues. Results: The nSMase inhibitor GW4869 and an anticera…
Cooling of the cerebellar interpositus nucleus abolishes somatosensory cortical learning-related activity in eyeblink conditioned rabbits.
2005
Nictitating membrane movement and multiple-unit activity in the somatosensory cortex were recorded from rabbits during paired (N = 6) and unpaired (N = 5) presentations of a tone conditioned stimulus (CS) and an airpuff unconditioned stimulus (US). A behavioural conditioned response (CR) to the CS and an accompanying neural response in the somatosensory cortex developed only in the paired group. Inactivation of the cerebellar interpositus nucleus abolished both the acquired CR and the accompanying neural response. However, the CS facilitated both behavioural and neural responses to the US during the inactivation. Thus, the absence of the CR could not be accounted for by the general inabilit…
I festeggiamenti per le incoronazioni a Palermo di Vittorio Amedeo II (1713) e Carlo III (1735): musica, spettacolo e cerimonia
2018
Le entrate e le rispettive incoronazioni a Palermo di Vittorio Amedeo II di Savoia e Carlo III di Borbone sono state analizzate sotto diversi punti di vista. Tuttavia gli aspetti musicali sono stati finora poco considerati, se non a margine di studi più generali sulla vita musicale palermitana. Il presente contributo è riservato in modo specifico alla cornice sonora dei due eventi, dimostrando come questa costituisse un elemento essenziale al funzionamento della festa e al soddisfacimento dei suoi scopi. Le descrizioni e le testimonianze iconografiche propongono spunti di indagine sulle modalità di esecuzione e sui rapporti con il contesto celebrativo, fornendo anche informazioni sulle occa…
343 External validation of tumour-free distance as novel prognostic marker in early-stage cervical cancer undergoing primary surgery
2020
Introduction Tumor-free distance (TFD), defined as the minimum distance of uninvolved stroma between the tumor and peri-cervical stromal ring, was recently proposed as predictive marker of recurrence in patients with early-stage cervical cancer treated by primary surgery (particularly if ≤3.5 mm). The aims of the present study were to assess the prognostic value of TFD and to compare TFD with other known prognostic markers in early-stage cervical cancer. Methods Patients with pathologic FIGO 2009 stage IA1-IIB cervical cancer, treated by primary radical surgical treatment between 01/2000 and 12/2018, were retrospectively included. Adjuvant treatment was administered according to the presenc…
Adding symbolic information to picture models: definitions and properties
2005
AbstractIn the paper we propose extensions of some picture models, such as colored, drawn and pixel pictures. Such extensions are conceived by observing that a picture may embed more information than the shape, such as colors, labels, etc., which can be represented by a symbol from an alphabet and can be associated to segments, points or pixels. New interesting issues derived from the introduction of symbols will be investigated together with some complexity and decidability questions for the proposed extensions.
On groups having a p-constant character
2020
Let G G be a finite group, and p p a prime number; a character of G G is called p p -constant if it takes a constant value on all the elements of G G whose order is divisible by p p . This is a generalization of the very important concept of characters of p p -defect zero. In this paper, we characterize the finite p p -solvable groups having a faithful irreducible character that is p p -constant and not of p p -defect zero, and we will show that a non- p p -solvable group with this property is an almost-simple group.
"Quels beste ce pooit estre" : Merlin et le bestiaire dans trois Suites du Merlin en prose : d'une poétique du personnage à une poétique du roman
2016
One of the most eminent figures of Arthurian literature, renowned in the Middle Ages as in later periods, Merlin remains however a polymorphous and contradictory character. A study focusing on two aspects will allow us to perceive his ambiguities and to form the poetics of the character. Firstly, from a relational perspective, the bestiary, that is to say the literary fauna, constitutes an element of this definition. In Prose Merlin’s retrospective prose sequels (the “Vulgate” Suite, the “Post-Vulgate” Suite and the Livre d’Artus), romances which constitute the apex of thirteenth century Arthurian texts in prose, this relation axis encounters an intertextual perspective. By its extent and i…
Revision of the types of species of Alloxysta described by Cameron and Fergusson (Hymenoptera: Figitidae: Charipinae) and deposited in the Natural Hi…
2013
Type material of the species of Alloxysta described by Cameron and Fergusson and deposited in the Natural History Museum of London has been revised. Seven species are considered valid: Alloxysta abdera Fergusson, 1986, A. basimacula (Cameron, 1886), A. crassa (Cameron, 1889), A. mullensis (Cameron, 1883), A. piceomaculata (Cameron, 1883), A. pleuralis (Cameron, 1879) and A. semiaperta Fergusson, 1986. A. basimacula, A. crassa, A. maculicollis (Cameron, 1886), A. perplexa (Cameron, 1889) and A. piceomaculata are here removed from synonymy with A. macrophadna (Hartig,1841). A. ruficeps (Cameron, 1883) is removed from synonymy with A. victrix (Westwood, 1833). A. caledonica (Cameron, 1886) and…
What is Alloxysta fulviceps (Curtis, 1838) (Hymenoptera: Cynipoidea:Figitidae: Charipinae)?
2011
Pujade-Villar, J., Ferrer-Suay, M., Selfa, J. and Alonso-Zarazaga, M.A. 2011. What is Alloxysta fulviceps (Curtis, 1838) (Hymenoptera: Cynipoidea: Figitidae: Charipinae)?. Memoirs of Museum Victoria 68: 67–70. The validity of Alloxysta fulviceps (Curtis, 1838) and its synonymies have been examined. After studying the type series and the taxonomic history of this species, we conclude that the lectotype was wrongly designated. A new lectotype is designated and A. fulviceps is synonymised with A. victrix (Westwood, 1833).
The adiabatic strictly-correlated-electrons functional : kernel and exact properties
2016
We investigate a number of formal properties of the adiabatic strictly-correlated electrons (SCE) functional, relevant for time-dependent potentials and for kernels in linear response time-dependent density functional theory. Among the former, we focus on the compliance to constraints of exact many-body theories, such as the generalised translational invariance and the zero-force theorem. Within the latter, we derive an analytical expression for the adiabatic SCE Hartree exchange-correlation kernel in one dimensional systems, and we compute it numerically for a variety of model densities. We analyse the non-local features of this kernel, particularly the ones that are relevant in tackling p…