Results 21 to 30 of about 1,877,147 (362)

A cookbook for temporal conceptual data modelling with description logic [PDF]

open access: yes, 2014
We design temporal description logics suitable for reasoning about temporal conceptual data models and investigate their computational complexity. Our formalisms are based on DL-Lite logics with three types of concept inclusions (ranging from atomic ...
Artale, A.   +3 more
core   +2 more sources

Defect Structures of Magnetic Nanoparticles in Smectic A Liquid Crystals

open access: yesMolecules, 2021
Topological defects in anisotropic fluids like liquid crystals serve as a playground for the research of various effects. In this study, we concentrated on a hybrid system of chiral rod-like molecules doped by magnetic nanoparticles.
Vladimíra Novotná   +3 more
doaj   +1 more source

Inclusive dignity

open access: yesPolitics, Philosophy & Economics, 2023
The idea of dignity is pervasive in political discourse. It is central to human rights theory and practice, and it features regularly in conceptions of social justice as well as in the social movements they seek to understand or orient. However, dignity talk has been criticized for leading to problematic exclusion. Critics challenge it for undermining
openaire   +2 more sources

A multifunctional shape-morphing elastomer with liquid metal inclusions

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance Research in soft robotics and wearable technologies has led to increasing demand for shape-changing materials that can be powered with portable electronics.
Michael J. Ford   +7 more
semanticscholar   +1 more source

A Peculiar New Genus of Bibionomorpha (Diptera) with Brachycera-Like Modification of Antennae from Mid-Cretaceous Amber of Myanmar

open access: yesInsects, 2021
A new fossil genus of Bibionidae (Diptera: Bibionomorpha), Burmahesperinus gen. nov., from the mid-Cretaceous Burmese amber, is described and illustrated (type species Burmahesperinus antennatus sp. nov., the other two species included are B. conicus sp.
Jan Ševčík   +3 more
doaj   +1 more source

Evolution of Non-Metallic Inclusions in 27SiMn Steel

open access: yesMetals, 2022
To study the evolution of non-metallic inclusions in 27SiMn steel, the 27SiMn steel produced using the LD-LF-CCM process was sampled in various stages in a steel factory.
Xinliang Lu   +5 more
doaj   +1 more source

Abiotic methane synthesis and serpentinization in olivine-hosted fluid inclusions

open access: yesProceedings of the National Academy of Sciences of the United States of America, 2019
Significance Our findings highlight the ubiquitous occurrence of methane (CH4)-rich fluid inclusions in olivine-bearing rocks that, collectively, may constitute one of the largest reservoirs of abiotic CH4 on Earth.
F. Klein, N. Grozeva, J. Seewald
semanticscholar   +1 more source

Basic theory of nonlinear third-order q-difference equations and inclusions

open access: yesMathematical Modelling and Analysis, 2013
We investigate the existence of solutions for boundary value problems of the third-order q-difference equations and inclusions. Our results are based on some standard fixed point theorems.
Bashir Ahmad, Juan Jose Nieto
doaj   +1 more source

INCLUSIVE DIFFRACTION [PDF]

open access: yesNew Trends in HERA Physics 2005, 2006
Results are given on the measurements of the hard diffractive interactions at HERA $ep$ collider. The structure of the diffractive exchange in terms of partons and the factorisation properties are discussed, in particular by comparing the QCD predictions for dijets and $D^*$ with measurements both in the photo and electroproduction regimes.
openaire   +3 more sources

Fractional-order differential equations with anti-periodic boundary conditions: a survey

open access: yesBoundary Value Problems, 2017
We will present an up-to-date review on anti-periodic boundary value problems of fractional-order differential equations and inclusions. Some recent and new results on nonlinear coupled fractional differential equations supplemented with coupled anti ...
Ravi P Agarwal   +2 more
doaj   +1 more source

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