Search results for "ISM [galaxies]"

showing 10 items of 699 documents

Symmetric (79, 27, 9)-designs Admitting a Faithful Action of a Frobenius Group of Order 39

1997

AbstractIn this paper we present the classification of symmetric designs with parameters (79, 27, 9) on which a non-abelian group of order 39 acts faithfully. In particular, we show that such a group acts semi-standardly with 7 orbits. Using the method of tactical decompositions, we are able to construct exactly 1320 non-isomorphic designs. The orders of the full automorphism groups of these designs all divide 8 · 3 · 13.

Discrete mathematicsKlein four-groupG-moduleQuaternion groupAlternating groupOuter automorphism groupGroup representationsymmetric design; Frobenius group; orbit structureTheoretical Computer ScienceCombinatoricsComputational Theory and MathematicsSymmetric groupDiscrete Mathematics and CombinatoricsGeometry and TopologyFrobenius groupMathematicsEuropean Journal of Combinatorics
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A theorem of insertion and extension of functions for normal spaces

1993

Discrete mathematicsPure mathematicsArzelà–Ascoli theoremIsomorphism extension theoremFréchet spaceGeneral MathematicsClosed graph theoremRiesz–Thorin theoremOpen mapping theorem (functional analysis)Brouwer fixed-point theoremMathematicsCarlson's theoremArchiv der Mathematik
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Symplectic automorphisms of prime order on K3 surfaces

2006

The aim of this paper is to study algebraic K3 surfaces (defined over the complex number field) with a symplectic automorphism of prime order. In particular we consider the action of the automorphism on the second cohomology with integer coefficients. We determine the invariant sublattice and its perpendicular complement, and show that the latter coincides with the Coxeter-Todd lattice in the case of automorphism of order three. We also compute many explicit examples, with particular attention to elliptic fibrations.

Discrete mathematicsPure mathematicsAutomorphismsAlgebra and Number TheoryOuter automorphism groupK3 surfacesAutomorphismCohomologyMathematics - Algebraic GeometryMathematics::Group TheoryInner automorphism14J28 14J10FOS: MathematicsInvariant (mathematics)Algebraic numberComplex numberAlgebraic Geometry (math.AG)ModuliSymplectic geometryMathematics
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Parental stress and resilience in autism spectrum disorder and Down syndrome

2020

The aim of this study was to compare parental stress and resilience in parents of children with autism spectrum disorder (ASD), Down syndrome (DS), and typical development (TD), and analyze the relationship between these two constructs. A total of 97 parents participated (ASD: n = 32, DS: n = 23, and TD: n = 42). The instruments used were the Parental Stress Index and the Resilience Scale. The ASD group obtained higher parental stress related to the child’s characteristics but not related to the parents’ characteristics. The three groups obtained moderate resilience, and high resilience was associated with low parental stress in the ASD and DS groups. The higher parental stress obtained in…

Down syndrome05 social sciencesmedicine.diseaseDevelopmental psychology03 medical and health sciences0302 clinical medicineAutism spectrum disordermental disordersmedicine0501 psychology and cognitive sciencesParental stressPsychologyResilience (network)030217 neurology & neurosurgerySocial Sciences (miscellaneous)050104 developmental & child psychologyJournal of Family Issues
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E-tourism economics: Editorial for the special issue

2019

E-tourism economicsSettore SECS-S/06 -Metodi Mat. dell'Economia e d. Scienze Attuariali e Finanz.EconomyTourism Leisure and Hospitality ManagementPolitical scienceGeography Planning and DevelopmentSettore SECS-P/06 - Economia ApplicataTourismTourism Economics
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Co-citation, bibliographic coupling and leading authors, institutions and countries in the 50 years of Technological Forecasting and Social Change

2021

[EN] Technological Forecasting and Social Change (TF&SC) is a leading international journal that publishes major advances related to technological forecasting and future studies. The journal was launched in 1969 and in 2019 celebrated its 50th anniversary. To celebrate 50 years of outstanding contributions, this study presents a bibliometric analysis of TF&SC publications and patterns of citations within TF&SC in terms of authors, institutions and countries. The analysis relies on the Web of Science Core Collection database for bibliographic content and Visualization of Similarities viewer software for mapping of bibliometric data. Our analysis identifies leading authors, universities and c…

ECONOMIA APLICADAFuture studiesBibliometric analysisWeb of science020209 energyLibrary science10 Technology 14 Economics 15 Commerce Management Tourism and Services02 engineering and technologyBibliometricsCo-citationManagement of Technology and InnovationPolitical science0502 economics and business0202 electrical engineering electronic engineering information engineeringBusiness and International ManagementApplied PsychologyVOS viewer05 social sciencesSocial changeCo-citationBibliographic couplingBibliometricsScience StudiesWeb of Science050203 business & managementTechnology forecasting
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Comparative study of sensory modulation vulnerabilities in children with and without ASD in family and school contexts

2018

Background: Children with autism spectrum disorder (ASD) may present sensory processing alterations that are specific to each environment in which they develop, inevitably impacting their daily fun...

Early childhood educationSensory modulationSocial PsychologySensory processingIntelligence quotientmedicine.medical_treatment05 social sciencesmedicine.diseasebehavioral disciplines and activitiesEducationDevelopmental psychology03 medical and health sciences0302 clinical medicineOccupational TherapyAutism spectrum disorderRating scalemental disordersmedicineAutism0501 psychology and cognitive sciencesPsychology030217 neurology & neurosurgery050104 developmental & child psychologyJournal of Occupational Therapy, Schools, & Early Intervention
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Tourism sustainability and economic efficiency: a statistical analysis of Italian provinces

2009

Economic EfficiencyTourism SustainabilityGuest-production Function
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Sustainable tourist development in Italian holiday destinations

2008

This paper argues that tourism, will become a major activity in a modern welfare state, which will have serious consequences for environmental sustainability. This issue calls for an assessment of the pros and cons of the ecological efficiency of tourism. We propose an overall efficiency indicator that comprises both a sustainable tourism index and an economic efficiency index. Based on a data set for Italian provinces and using Activity Analysis, a quantitative assessment of the relative position of Italian tourist destination areas is made from the perspective of sustainable tourism. Copyright © 2008 Inderscience Enterprises Ltd.

Economic efficiencySustainable Tourism DestinationStrategy and ManagementEcological efficiencyDestinationsGeneralLiterature_MISCELLANEOUSjel:L83Data Envelopment AnalysiRegional sciencejel:Q26Activity Analysis; Data Envelopment Analysis; Sustainable Tourism Destination; Tourist PerformanceSustainable tourismMarketingSustainable developmentTourist Performance.InformationSystems_INFORMATIONSYSTEMSAPPLICATIONSTourism geographyGeneral EngineeringSDG 8 - Decent Work and Economic Growth/dk/atira/pure/sustainabledevelopmentgoals/decent_work_and_economic_growthComputer Science ApplicationsActivity AnalysiEconomySettore SECS-S/03 - Statistica EconomicaSustainabilityBusinessTourism
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An exploratory study of sustainable rural tourism in Sicily

2013

Recently, a significant interest was noticed around rural tourism, and particularly agritourism, which represents the main specific application. Rural tourism is a sustainable tourism, since the valorisation and conservation of environmental and territorial resources where economic activity is carried out are its main features. From the official statistical data, it appears clear that this activity, widely spread in Italy, may provide a significant financial support both to agricultural firms and to the whole sector of tourism, and thus allows redistributing touristic flows from coastal towards inland areas. The main aims of the paper are both to analyse the agritourist supply in Sicily com…

Economic growthEntrepreneurshipbusiness.industryTourism geographyRural tourismGeneral Business Management and AccountingTourismGeographySustainabilityAgricultureSettore AGR/01 - Economia Ed Estimo RuraleSustainabilityRegional scienceRural areabusinessEntrepreneurial succeSicilySustainable tourismTourismInternational Journal of Business and Globalisation
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