Results 51 to 60 of about 25,629,046 (344)

Area metric gravity and accelerating cosmology [PDF]

open access: yes, 2006
Area metric manifolds emerge as effective classical backgrounds in quantum string theory and quantum gauge theory, and present a true generalization of metric geometry. Here, we consider area metric manifolds in their own right, and develop in detail the
  +33 more
core   +2 more sources

Usefulness of Vena Contracta for Identifying Severe Secondary Mitral Regurgitation: A Three-Dimensional Transesophageal Echocardiography Study

open access: yesReviews in Cardiovascular Medicine, 2023
Background: In secondary mitral regurgitation (SMR), effective regurgitant orifice area by the proximal isovelocity surface area method (EROAPISA) evaluation might cause an underestimation of regurgitant orifice area because of its ellipticity compared ...
Hirokazu Onishi   +4 more
doaj   +1 more source

Effectiveness of Effective Area Method for Assessing Undrained Capacity of Shallow Rectangular Foundations

open access: yesJournal of Geotechnical and Geoenvironmental Engineering, 2019
This paper investigates the effectiveness of the effective area method (EAM) for assessing the undrained load-carrying capacity of rectangular foundations under combined vertical (V), horiz...
X. Feng   +3 more
semanticscholar   +1 more source

Mainstreaming marine biodiversity into the SDGs: The role of other effective area-based conservation measures (SDG 14.5)

open access: yesMarine Policy, 2017
This article explores the concept of “other effective area-based conservation measures” (OECMs) in the context of the UN Convention on Biological Diversity (CBD) Aichi Biodiversity Target 11 on marine protected areas and OECMs and its linkages to the ...
S. Rees   +9 more
semanticscholar   +1 more source

Effective Area-Elasticity and Tension of Micro-manipulated Membranes

open access: yes, 2001
We evaluate the effective Hamiltonian governing, at the optically resolved scale, the elastic properties of micro-manipulated membranes. We identify floppy, entropic-tense and stretched-tense regimes, representing different behaviors of the effective ...
A. Ajdari   +24 more
core   +3 more sources

Low-DMGD, Large-Effective-Area and Low-Bending-Loss 12-LP-Mode Fiber for Mode-Division-Multiplexing

open access: yesIEEE Photonics Journal, 2019
We report the design of 12-LP-mode (21-spatial-mode) fiber with a low differential mode group delay (DMGD), a large effective area, and a low bending loss that is adapted to a mode-division-multiplexing system over the C+L band.
Huan Zhang   +4 more
semanticscholar   +1 more source

Area-Preserving Algebra Structure of Two-Dimensional Supergravity [PDF]

open access: yes, 1995
The effective action for 2d-gravity in Weyl-invariant regularization is extended to supersymmetric case. The super area-preserving invariance and cocyclic properties under general supergravitational transformations of the last action is shown.Comment ...
Karakhanyan, D. R.
core   +3 more sources

The HIT Network for Children and Adolescents With CNS Tumors Facilitates Improvements of Diagnostic Assessments, Multimodal Treatments, Individual Counseling, and Research in Germany, Austria, and Switzerland

open access: yesPediatric Blood &Cancer, EarlyView.
ABSTRACT Background The HIT network was established in 2000 to create a population‐based structure aiming to improve survival rates and reduce late effects for children with central nervous system (CNS) tumors by conducting comprehensive clinical trials.
Stefan Rutkowski   +59 more
wiley   +1 more source

Field-emission from parabolic tips: current distributions, the net current and effective emission area

open access: yes, 2018
Field emission from nano-structured emitters primarily takes place from the tips. Using recent results on the variation of enhancement factor around the apex (Biswas et al, Ultramicroscopy 185, 1-4 (2018)), analytical expressions for surface distribution
Biswas, Debabrata
core   +1 more source

Communicating and accentuating the aesthetic and expressive dimension in choral conducting [PDF]

open access: yes, 2009
This article considers the issues that are involved in effective choral conducting from an aesthetic dimension. Drawing upon research, theories and practice, it provides some insight into the nature of communication and the significance of gesture on ...
Durrant, Colin
core   +2 more sources

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