Search results for "F'"

showing 10 items of 26 documents

Birkhoff's theorem and perturbations in $f(R)$ theories

2012

Invited contribution to Annalen der Physik (Expert Opinion).

PhysicsGeneral Physics and AstronomyFOS: Physical sciencesGeneral Relativity and Quantum Cosmology (gr-qc)Birkhoff's theoremGeneral Relativity and Quantum CosmologyMathematical physics
researchProduct

On the rigidity theorem for elliptic genera

2018

We give a detailed proof of the rigidity theorem for elliptic gen- era. Using the Lefschetz fixed point formula we carefully analyze the relation between the characteristic power series defining the elliptic genera and the equivariant elliptic genera. We show that equivariant elliptic genera converge to Jacobi functions which are holomorphic. This implies the rigidity of elliptic genera. Our approach can be easily modified to give a proof of the rigidity theorem for the elliptic genera of level N.

Quarter periodPure mathematicsApplied MathematicsGeneral MathematicsMathematical analysisElliptic functionHolomorphic functionMathematics::Geometric TopologyMathematics::Algebraic TopologySupersingular elliptic curveJacobi elliptic functionsHigh Energy Physics::TheoryMathematics::Algebraic GeometryModular elliptic curveElliptic integralSchoof's algorithmMathematics::Symplectic GeometryMathematicsTransactions of the American Mathematical Society
researchProduct

CCDC 658272: Experimental Crystal Structure Determination

2008

Related Article: K.Salorinne, M.Nissinen|2008|Tetrahedron|64|1798|doi:10.1016/j.tet.2007.11.103

Space GroupCrystallographyCrystal System(mu~2~-eta^6^eta^6^-281420-Tetraethyl-6121824-tetramethoxy-410:1622-bis(369-trioxaundecane-111-dioxy)calix(4)arene)-(mu~2~-hexafluorophosphato-FFF'F'')-di-rubidium clathrate hexafluorophosphate acetone solvateCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 2069805: Experimental Crystal Structure Determination

2021

Related Article: Paula Gómez, Jesús Cerdá, Miriam Más-Montoya, Stamatis Georgakopoulos, Iván da Silva, Antonio García, Enrique Ortí, Juan Aragó, David Curiel|2021|J.Mater.Chem.C|9|10819|doi:10.1039/D1TC01328A

Space GroupCrystallographyCrystal System513-dihydrodipyrido[23-b:23-b']naphtho[18-fg:54-f'g']diindoleCrystal StructureCell ParametersExperimental 3D Coordinates
researchProduct

CCDC 658273: Experimental Crystal Structure Determination

2008

Related Article: K.Salorinne, M.Nissinen|2008|Tetrahedron|64|1798|doi:10.1016/j.tet.2007.11.103

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameters(mu~2~-eta^6^eta^6^-281420-Tetraethyl-6121824-tetramethoxy-410:1622-bis(369-trioxaundecane-111-dioxy)calix(4)arene)-(mu~2~-hexafluorophosphato-FFF'F'')-di-cesium clathrate hexafluorophosphateExperimental 3D Coordinates
researchProduct

CCDC 637554: Experimental Crystal Structure Determination

2007

Related Article: Xiao-Yu Cao, J.Harrowfield, J.Nitschke, J.Ramirez, A.-M.Stadler, N.Kyritsakas-Gruber, A.Madalan, K.Rissanen, L.Russo, G.Vaughan, J.-M.Lehn|2007|Eur.J.Inorg.Chem.||2944|doi:10.1002/ejic.200700235

Space GroupCrystallographyCrystal SystemCrystal StructureCell Parameterstetrakis(mu~2~-N-(((6-(2-Benzoylhydrazinylidene)methyl)-2-phenylpyrimidin-4-yl)methylene)benzenecarbohydrazonato-NN'N''N'''OO')-tetrakis(mu~2~-N-(((6-(2-benzoylhydrazinylidene)methyl)-2-phenylpyrimidin-4-yl)methylene)benzenecarbohydrazonato-NN'OO')-bis(mu~2~-tetrafluoroborate-FF')-bis(acetonitrile)-diaqua-octa-zinc(ii) tetradecakis(tetrafluoroborate) benzene acetonitrile solvate trihydrateExperimental 3D Coordinates
researchProduct

The school staff's perception of their ability to teach special educational needs pupils in inclusive settings in Finland

2015

Recent studies have suggested that the professional training received by general educators does not adequately prepare them to properly implement inclusion-based practices. The idea of inclusion in practice has not significantly changed the situation of teaching pupils with special educational needs (SENs) in mainstream classes. This study's primary intent is to examine the factors that identify the school staff's ability to meet the needs of SEN pupils in their daily teaching situations. A total of 187 elementary school teachers, principals and teaching assistants in a Finnish city completed a structured questionnaire that used a self-evaluation method. Two components were generalised acco…

Teaching methodMainstreamingeducational reformSpecial educationEducationLikert scaleArts and Humanities (miscellaneous)school staff's perceptionMathematics educationMedicineAchievement testta5160501 psychology and cognitive sciencesFinlandspecial educationMedical educationbusiness.industry4. Education05 social sciencesProfessional development050301 educationTeacher educationinclusionbusiness0503 educationInclusion (education)050104 developmental & child psychologyInternational Journal of Inclusive Education
researchProduct

Comparison of MeSH terms and KeyWords Plus terms for more accurate classification in medical research fields. A case study in cannabis research

2021

Abstract KeyWords Plus and Medical Subject Headings (MeSH) are widely used in bibliometric studies for topic mapping. The objective of this study is to compare the two description systems in documents about cannabis research to find the concordance between systems and establish whether there is neutrality in topic mapping. A total of 25,593 articles from 1970 to 2019 were drawn from Web of Science's Core Collection and Medline and analyzed. The tidytext library, Zipf's law, topic modeling tools, the contingency coefficient, Cramer's V, and Cohen's kappa were used. The results included 10,107 MeSH terms and 28,870 KeyWords Plus terms. The Zipf distribution of the terms was different for each…

Topic modelContingency tableInformation retrievalZipf's lawComputer scienceConcordanceMEDLINESubject (documents)Library and Information SciencesManagement Science and Operations ResearchComputer Science ApplicationsCohen's kappaMedia TechnologyKappaInformation SystemsInformation Processing & Management
researchProduct

SIA "NAF" saimnieciskās darbības analīze un attīstības iespēju noteikšana.

2017

Bakalaura darba tēma ir “SIA “NAF” saimnieciskās darbības analīze un attīstības iespēju noteikšana”. Bakalaura darba mērķis ir analizēt saimnieciskās darbības teorētiskos aspektus un SIA “NAF” saimniecisko darbību laika posmā no 2013. gada līdz 2016. gadam un izstrādāt SIA “NAF” saimnieciskās darbības attīstības pasākumu plānu. Pētījuma rezultātā autore secināja, lai veiksmīgi attīstītu saimniecisko darbību SIA “NAF” jāveic mārketinga aktivitātes un jāpieņem patstāvīgā darbinieki Darba apjoms ir 71 lpp. Tas satur 19 attēlus, 34 tabulas, 9 pielikumus un ir tapis, izmantojot 37 literatūras avotus Atslēgas vārdi: saimnieciskās darbības analīze, finanšu koeficienti, konkurentu analīze,SVID,SIA“…

Vadībzinātnefinanšu koeficientisaimnieciskās darbības analīzeSIA ''NAF''konkurentu analīzeSVID
researchProduct

The value of a network in the digital era: insights about Doctor Chat case study

2017

Networks are ubiquitous in our lives in their social, physical, and digital forms. A growing number of firms today rely entirely on networking and lack a physical location or material infrastructure; they are, so to speak, 'liquid'. Through a theoretical analysis and its application to the case of Doctor Chat mobile app, this paper aims to analyse the fundamental laws of networks and to answer the following questions: 1) are the traditional methods to estimate the network value still valid in the current digital age and in particular for mobile applications?; 2) how do the laws of networks work when networks expand? We conclude with some suggestions for a research agenda in order to inspire…

Value (ethics)Computer scienceInternet privacySarnoff's lawNetwork theorycomputer.software_genreManagement Information Systemsnetwork theoryReed's lawMetcalfe's lawmobile appManagement Information SystemOdlyzko and Tilly's lawBusiness and International Management060201 languages & linguisticsMarketingMultimediabusiness.industryMobile apps06 humanities and the artsManagement information systemsWork (electrical)Order (business)0602 languages and literatureMetcalfe's lawbusinessReed's lawcomputerInternational Journal of Electronic Marketing and Retailing
researchProduct