Results 41 to 50 of about 2,686,912 (180)

The Structural Status of Iranian Medical Journals Based on the Medline Selection Criteria

open access: yesمدیریت اطلاعات سلامت, 2016
Introduction: In recent years, the number of academic medical research journals has increased in Iran. These journals must be based on the standards and criteria required in international indexing databases in order to be indexed.
Azam Shahbodaghi   +3 more
doaj  

Operator-valued pseudo-differential operators and the twisted index pairing [PDF]

open access: yesarXiv, 2010
The notion of pseudo-differential operators with coefficients in a continuous trace algebra over a manifold are introduced and their index theory is studied. The algebra of principal symbols in this calculus provides an abstract Poincar\'e dual to the continuous trace algebra.
arxiv  

Letter from the New Editor-in-Chief

open access: yesLife, 2014
It is my great pleasure to serve as the new Editor-in-Chief of Life, a journal concerned with fundamental questions on the origins and nature of life, evolution of biosystems and astrobiology.
Pabulo Henrique Rampelotto
doaj   +1 more source

An anticipating tangent to a semimartingale [PDF]

open access: yesarXiv, 2023
We construct a perturbation of identity type mapping on an abstract Wiener space where the Cameron-Martin space has an orthonormal basis indexed by the jumps a one dimensional semimartingale. We then derive a change of variables formula and a degree type result for this map.
arxiv  

Exchangeable Laws in Borel Data Structures [PDF]

open access: yesarXiv, 2022
Motivated by statistical practice, category theory terminology is used to introduce Borel data structures and study exchangeability in an abstract framework. A generalization of de Finetti's theorem is shown and natural transformations are used to present functional representation theorems (FRTs). Proofs of the latter are based on a classical result by
arxiv  

Dirichlet-to-Neumann Maps, Abstract Weyl-Titchmarsh $M$-Functions, and a Generalized Index of Unbounded Meromorphic Operator-Valued Functions [PDF]

open access: yesarXiv, 2016
We introduce a generalized index for certain meromorphic, unbounded, operator-valued functions. The class of functions is chosen such that energy parameter dependent Dirichlet-to-Neumann maps associated to uniformly elliptic partial differential operators, particularly, non-self-adjoint Schr\"odinger operators, on bounded Lipschitz domains, and ...
arxiv  

Atiyah-Patodi-Singer index theorem for domain-wall fermion Dirac operator [PDF]

open access: yes, 2017
Recently, the Atiyah-Patodi-Singer(APS) index theorem attracts attention for understanding physics on the surface of materials in topological phases. Although it is widely applied to physics, the mathematical set-up in the original APS index theorem is too abstract and general (allowing non-trivial metric and so on) and also the connection between the ...
arxiv   +1 more source

The identification of clinically important elements within medical journal abstracts: Patient_Population_Problem, Exposure_Intervention, Comparison, Outcome, Duration and Results (PECODR)

open access: yesJournal of Innovation in Health Informatics, 2007
Background Information retrieval in primary care is becoming more difficult as the volume of medical information held in electronic databases expands.
Martin Dawes   +5 more
doaj   +1 more source

How to Get Iranian Journals Better Indexed by Foreign Databases?

open access: yesمدیریت اطلاعات سلامت, 2011
Since increasing the number of indexing and abstracting services covering a journal would increase the total citations received by the journal, this study tried to investigate the reasons why Iranian journals are not indexed by foreign databases ...
Alireza Noruzi, Hiwa Abdekhoda
doaj  

Progressive Neural Index Search for Database System [PDF]

open access: yesarXiv, 2019
As a key ingredient of the DBMS, index plays an important role in the query optimization and processing. However, it is a non-trivial task to apply existing indexes or design new indexes for new applications, where both data distribution and query distribution are unknown.
arxiv  

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