Results 111 to 120 of about 5,224,338 (238)

A Complexity‐Based Approach to Migration Policy Change: The Case of the German Residence Act

open access: yesRegulation &Governance, EarlyView.
ABSTRACT This paper adapts and applies existing indicators to measure the complexity of German migration policy over time. Building on recent scholarship that conceptualizes migration policy as multidimensional, I adapt a measurement strategy from the EUPLEX Project to capture three key components of regulatory complexity: structural, linguistic, and ...
Pau Palop‐García
wiley   +1 more source

Remarks on the Extension of the Ricci Flow [PDF]

open access: yesJournal of Geometric Analysis, 2012
9 pages, to appear in Journal of Geometric ...
openaire   +3 more sources

Sigma model renormalisation group flows, singularities and some remarks on cosmology

open access: yesPhysics Letters B
We investigate the properties of the renormalisation group (RG) flow of two-dimensional sigma models with a generic metric coupling by utilising known results for the Ricci flow. We point out that on many occasions the RG flow develops singularities, due
Georgios Papadopoulos
doaj   +1 more source

Mapping Organized Crime as a Stakeholder: A Risk‐Based and Responsive Governance Perspective

open access: yesRegulation &Governance, EarlyView.
ABSTRACT Organized crime (OC) can influence firms through coercion, collusion, financial ties, and supply‐chain relationships, yet these interactions remain underexamined in stakeholder theory. This article conceptualizes organized crime as an analytically relevant but non‐normatively legitimate stakeholder and develops a risk‐based framework combining
Giovanni Scirè, Enzo Bivona
wiley   +1 more source

Collapsing immortal Kähler-Ricci flows

open access: yesForum of Mathematics, Pi
We consider the Kähler-Ricci flow on compact Kähler manifolds with semiample canonical bundle and intermediate Kodaira dimension, and show that the flow collapses to a canonical metric on the base of the Iitaka fibration in the locally smooth topology ...
Hans-Joachim Hein   +2 more
doaj   +1 more source

Gauge fields in a string-cigar braneworld

open access: yesPhysics Letters B, 2015
In this work, we investigate the properties of the Abelian gauge vector field in the background of a string-cigar braneworld. Both the thin and thick brane limits are considered.
F.W.V. Costa   +3 more
doaj   +1 more source

Determining properties of human‐induced pluripotent stem cell‐derived cardiomyocytes using spatially resolved electromechanical metrics

open access: yesThe Journal of Physiology, EarlyView.
Abstract figure legend In this study, we use human‐induced pluripotent stem cell‐derived cardiomyocyte (hiPSC‐CM) experiments and computational modelling to identify the mechanism of action of drug compounds. In the hiPSC‐CM experiments, optical measurements of cell collections are recorded in the baseline case and after drug exposure.
Karoline Horgmo Jæger   +4 more
wiley   +1 more source

Entropy and Non-Collapse in Lorentzian Geometry

open access: yesPhysics Letters B
In this paper, we establish a geometric correspondence between the Lorentzian Raychaudhuri equation and Perelman’s non-collapsing theorem for the Ricci flow.
Rohit Dhormare
doaj   +1 more source

Forman-Ricci Flow for Change Detection in Large Dynamic Data Sets

open access: yesAxioms, 2016
We present a viable geometric solution for the detection of dynamic effects in complex networks. Building on Forman’s discretization of the classical notion of Ricci curvature, we introduce a novel geometric method to characterize different types of real-
Melanie Weber, Jürgen Jost, Emil Saucan
doaj   +1 more source

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