Search results for "IMes"

Modeling and querying facts with period timestamps in data warehouses

2019

Abstract In this paper, we study various ways of representing and querying fact data that are time-stamped with a time period in a data warehouse. The main focus is on how to represent the time periods that are associated with the facts in order to support convenient and efficient aggregations over time. We propose three distinct logical models that represent time periods as sets of all time points in a period (instant model), as pairs of start and end time points of a period (period model), and as atomic units that are explicitly stored in a new period dimension (period∗ model). The period dimension is enriched with information about the days of each period, thereby combining the former tw…

Ferromagnetic coupling through spin polarization in the hexanuclear [MnII(3)CuII(3)] complex.

2004

A novel Cu(II)-Mn(II) hexanuclear complex of formula [[MnCuL](3)(tma)](ClO(4))(3).8H(2)O [H(2)L = macrocyclic Robson proligand; H(3)tma = trimesic acid] has been obtained by connecting three heterobinuclear [Cu(II)Mn(II)L](2+) cationic species through the trimesate anion. The complex exhibits a C(3) rotational symmetry, imposed by the geometry of the bridging ligand. The interaction within each Mn(II)-Cu(II) pair is antiferromagnetic (J = -16.7 cm(-1)). A weak ferromagnetic coupling among the three S = 2 resulting spins through the tricarboxylato bridge leads to a S = 6 ground spin state, for which the spin polarization mechanism is responsible.

Europe’s Peat Fire: Intangible Heritage and the Crusades for Identity

2019

Dissonances of ethnic nationalism have in Western cultural policy long been concealed by the universalist discourses of the international treaties on material heritage protection, as framed by the expansive heritage conservation apparatuses of the European nation states. Originally inspired by the 19th century romantic spirit of conservation, they became in the 20th century part of the modern, state-apparatus. Yet parallel with the European enlargements and new kinds of memory debates on the Holocaust and postcolonialism, these authorized heritage regimes have received more and more competition from a transnational counter-discourse on intangible cultural heritage. Like the earlier transfor…

On the development of a communication-aware task mapping technique

2004

Clusters have become a very cost-effective platform for high-performance computing. In these systems, although currently existing networks actually provide enough bandwidth for the existing applications and workstations, the trend is towards the interconnection network becoming the system bottleneck. Therefore, in the future, scheduling strategies will have to take into account the communication requirements of the applications and the communication bandwidth that the network can offer. One of the key issues in these strategies is the task mapping technique used when the network becomes the system bottleneck.In this paper, we propose a communication-aware mapping technique that tries to mat…

La giustizia internazionale per gross violations di diritti umani tra esigenze retributive e riconciliative

2009

Quale disciplina per la violazione di norme internazionali?

2023

In this chapter the traditional legal issues concerning the legal regime which applies to international law violations are described, according to an original perspective. First of all, some specific problems (such as the place of fault and damage; the moment in which a violation can be considered as being committed, and the conditions governing such a commission; the role to be recognized to countermeasure in the general framework of the legal consequences of internationally wrongful acts, etc.) are solved, at variance with the mainstream opinion. Second: the elements of an internationally wrongful act as well as its legal effects are both examined with regard to the general regime and som…

Intracellular Na+ concentration influences short-term plasticity of glutamate transporter-mediated currents in neocortical astrocytes.

2012

Fast synaptic transmission requires a rapid clearance of the released neurotransmitter from the extracellular space. Glial glutamate transporters (excitatory amino acid transporters, EAATs) strongly contribute to glutamate removal. In this work, we investigated the paired-pulse plasticity of synaptically activated, glutamate transporter-mediated currents (STCs) in cortical layer 2/3 astrocytes. STCs were elicited by local electrical stimulation in layer 4 in the presence of ionotropic glutamate (AMPA and NMDA), GABAA, and GABAB receptor antagonists. In experiments with low [Na+]i (5 mM) intrapipette solution, STCs elicited by paired-pulse stimulation demonstrated paired-pulse facilitation (…

Italian Report on Individual Liability for Business Involvement in International Crimes

2017

The study is the Italian national report on the issue of the international criminal liability of individuals responsible for corporations discussed in section I of the XX AIDP Congress. The report underline that the Italian experience contribute to this issue with respect to the general discipline of individual complicity to crimes. Furthermore, it contribute with respect to the application of such general norms to cases in which criminal organizations infiltrate economic activity, through means of close ties with entrepreneurs who profit from relationships with criminal groups. Lastly, it assist with corporate criminal liability for crimes committed by its managers, at least with respect t…

Distributed GNSS-Based Time Synchronization and Applications

2016

The paper deals with synchronization standards, applications and challenges in the modern packet switched telecommunication networks. In recent years, the number of time-dependent services and systems only increases with the development of such areas as Internet of Things (IoT), industrial Internet, remote automation and robotics, precise positioning etc. In the paper, these emerging applications are discussed. An alternative way to the traditional centralized synchronization infrastructure is proposed. Compact and low-priced devices equipped with a Global Navigation Satellite System (GNSS) receiver and a reliable internal clock can be installed specifically in the places where they are nee…

Bright Blue Phosphorescence from Cationic Bis-Cyclometalated Iridium(III) Isocyanide Complexes

2012

We report new bis-cyclometalated cationic indium(III) complexes [((CN)-N-boolean AND)(2)Ir(CN-tert-Bu)(2)](CF3SO3) that have tert-butyl isocyanides as neutral auxiliary ligands and 2-phenylpyridine or 2-(4'-fluoropheny1)-R-pyridines (where R is 4-methoxy, 4-tert-butyl, or 5-trifluoromethyl) as (CN)-N-boolean AND ligands. The complexes are white or pale yellow solids that show irreversible reduction and oxidation processes and have a large electrochemical gap of 3.58-3.83 V. They emit blue or bluegreen phosphorescence in liquid/solid solutions from a cyclometalating-ligand-centered excited state. Their emission spectra show vibronic structure with the highest-energy luminescence peak at 440-…