Search results for "49"

Quantum Phases and Spin Liquid Properties of 1T-TaS2

2021

Quantum materials exhibiting magnetic frustration are connected to diverse phenomena including high-Tc superconductivity, topological order and quantum spin liquids (QSLs). A QSL is a quantum phase (QP) related to a quantum-entangled fluid-like state of matter. Previous experiments on QSL candidate materials are usually interpreted in terms of a single QP, although theories indicate that many distinct QPs are closely competing in typical frustrated spin models. Here we report on combined temperature-dependent muon spin relaxation and specific heat measurements for the triangular-lattice QSL candidate material 1T-TaS2 that provide evidence for competing QPs. The measured properties are assig…

Social media as a strategic marketing tool in the Sicilian wine industry: Evidence from Facebook

2017

Abstract Over the last few years, many companies have integrated social media, and social networking sites in particular, into their communication and media plan, leading to a deep transformation of the organizational models and changing the companies׳ marketing dynamics. This study has dual aims: first, to recognize and validate the firm׳s social media (SM) efforts in its use of the Facebook platform; second, to examine the relationships among the firm׳s SM efforts and some firm and managerial characteristics. In order to achieve these research aims, data on 45 wineries were collected and analysed, using a model that considers three different dimensions of the firms׳ activity on the social…

Tertulia historica, y apologetica, o examen critico, donde se averigua en el Chrisòl de Monumentos antiguos ... lo que contra Fray Geronimo Savanarol…

1790

Sig. [A]-G4, H1 Reclams. - Cristus a la port.

[Mossen Ausias March, poeta]

Ms Títol pres del llom Col·lació: Paper, f. ii (paper) + 175 + ii (paper) ; foliació original en xifres aràbigues (f. 1-9) i en xifres romanes des del f. 10 (salt en la foliació, del 21 al 496, i de 125 a 127) ; foliació moderna a llapis (f. 1-175) els f. 102, 173-175 en blanc ; filigranes Composició: Escrit a línia tirada Escriptura: Humanística cursiva, escrit per diferents mans, de la fi del segle s. XV fins al segle XVI Enquadernació: Del segle XVII, en pergamí sobre cartó. Al llom: "Mosen Ausias March. Poeta" Origen: Escrit a la fi del segle XV i al llarg del segle XVI tot atenent a les filigranes i a les mans Signatura anterior: 92-6-7 Signatura actual: València, Universitat de Valènc…

The multiplex structure of interbank networks

2013

The interbank market has a natural multiplex network representation. We employ a unique database of supervisory reports of Italian banks to the Banca d'Italia that includes all bilateral exposures broken down by maturity and by the secured and unsecured nature of the contract. We find that layers have different topological properties and persistence over time. The presence of a link in a layer is not a good predictor of the presence of the same link in other layers. Maximum entropy models reveal different unexpected substructures, such as network motifs, in different layers. Using the total interbank network or focusing on a specific layer as representative of the other layers provides a po…

Powers of conjugacy classes in a finite groups

2020

[EN] The aim of this paper is to show how the number of conjugacy classes appearing in the product of classes affect the structure of a finite group. The aim of this paper was to show several results about solvability concerning the case in which the power of a conjugacy class is a union of one or two conjugacy classes. Moreover, we show that the above conditions can be determined through the character table of the group.

Atypical perceptual narrowing in prematurely born infants is associated with compromised language acquisition at 2 years of age

2010

Abstract Background Early auditory experiences are a prerequisite for speech and language acquisition. In healthy children, phoneme discrimination abilities improve for native and degrade for unfamiliar, socially irrelevant phoneme contrasts between 6 and 12 months of age as the brain tunes itself to, and specializes in the native spoken language. This process is known as perceptual narrowing, and has been found to predict normal native language acquisition. Prematurely born infants are known to be at an elevated risk for later language problems, but it remains unclear whether these problems relate to early perceptual narrowing. To address this question, we investigated early neurophysiolog…

Impact of salmon farming on Atlantic cod spatio-temporal reproductive dynamics

2021

Salmon farming in marine net pens is a major activity in many temperate regions. This industry may affect coastal ecosystems in several ways, such as with waste pollution and parasite spillover. Less is known about the extent to which salmon farming disrupts the use of inshore spawning grounds by wild fish, such as the Atlantic cod Gadus morhua. Acoustic telemetry was therefore used to explore cod space use during the spawning season in a coastal region in mid-Norway with multiple salmon farms. Acoustic receivers were placed in clusters at 5 known cod spawning grounds and 6 nearby salmon farms. Data from 481 adult cod caught at the spawning grounds during 2017-2019 and equipped with acousti…

HANSEN, Folker (2015): La economía del cáñamo en la España suroriental. El cultivo, manipulación y transformación del cáñamo en su significado para l…

2018

Spatial structure and nest demography reveal the influence of competition, parasitism and habitat quality on slavemaking ants and their hosts

2010

Abstract Background Natural communities are structured by intra-guild competition, predation or parasitism and the abiotic environment. We studied the relative importance of these factors in two host-social parasite ecosystems in three ant communities in Europe (Bavaria) and North America (New York, West Virginia). We tested how these factors affect colony demography, life-history and the spatial pattern of colonies, using a large sample size of more than 1000 colonies. The strength of competition was measured by the distance to the nearest competitor. Distance to the closest social parasite colony was used as a measure of parasitism risk. Nest sites (i.e., sticks or acorns) are limited in …