Results 71 to 80 of about 240,834 (310)

Microneedle Technology in Psoriasis Management: Mechanistic Insights, Technological Innovation, Clinical Progress, and Challenges

open access: yesAdvanced Healthcare Materials, EarlyView.
This review explores the evolving role of microneedle systems in psoriasis management, highlighting their potential for enhanced drug delivery, diagnosis, and disease monitoring. It also discusses unmet clinical needs for psoriasis management and technical challenges, while outlining strategic directions to advance microneedle integration into routine ...
Fatma Moawad   +3 more
wiley   +1 more source

Renormalization group equations and integrability in Hamiltonian systems

open access: yes, 1998
We investigate Hamiltonian systems with two degrees of freedom by using renormalization group method. We show that the original Hamiltonian systems and the renormalization group equations are integrable if the renormalization group equations are ...
Nambu, Yasusada, Yamaguchi, Yoshiyuki Y.
core   +2 more sources

The three loop on-shell renormalization of QCD and QED [PDF]

open access: yes, 2000
We describe a calculation of the on-shell renormalization factors in QCD and QED at the three loop level. Explicit results for the fermion mass renormalization factor Zm and the on-shell fermion wave function renormalization constant Z2 are given.
Bernreuther   +43 more
core   +2 more sources

Discretisations, Constraints and Diffeomorphisms in Quantum Gravity

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2012
In this review we discuss the interplay between discretization, constraint implementation, and diffeomorphism symmetry in Loop Quantum Gravity and Spin Foam models. To this end we review the Consistent Discretizations approach, which is an application of
Benjamin Bahr   +2 more
doaj   +1 more source

A Functional 2D Carbon Allotrope Combining Nanoporous Graphene and Biphenylene Segments

open access: yesAdvanced Materials, EarlyView.
The synthesis of a novel nanoporous graphene (NPG) is reported with biphenylene segments via thermal fusion of 12‐armchair porous graphene nanoribbons grown on gold surfaces. Characterization using STM, AFM, and DFT reveals low‐defect semiconducting behaviour and tunable band gaps.
Paula Angulo‐Portugal   +14 more
wiley   +1 more source

Physical renormalization condition for the quark-mixing matrix

open access: yes, 2004
We investigate the renormalization of the quark-mixing matrix in the Electroweak Standard Model. We show that the corresponding counterterms must be gauge independent as a consequence of extended BRS invariance.
A. Barroso   +28 more
core   +1 more source

Renormalization properties of the mass operator A^2 in three dimensional Yang-Mills theories in the Landau gauge [PDF]

open access: yes, 2004
Massive renormalizable Yang-Mills theories in three dimensions are analysed within the algebraic renormalization in the Landau gauge. In analogy with the four dimensional case, the renormalization of the mass operator A^2 turns out to be expressed in ...
Appelquist   +37 more
core   +2 more sources

One-Loop Calculations and Detailed Analysis of the Localized Non-Commutative p^{-2} U(1) Gauge Model

open access: yesSymmetry, Integrability and Geometry: Methods and Applications, 2010
This paper carries forward a series of articles describing our enterprise to construct a gauge equivalent for the θ-deformed non-commutative p^{-2} model originally introduced by Gurau et al. [Comm. Math. Phys. 287 (2009), 275-290].
Daniel N. Blaschke   +2 more
doaj   +1 more source

A new method that automatically regularizes scattering amplitudes

open access: yesJournal of Physics Communications, 2023
We present a new regularization procedure called autoregularization . The new procedure regularizes the divergences, encountered previously in a scattering process, using the intrinsic scale of the process.
Nagabhushana Prabhu
doaj   +1 more source

Non‐Destructive Laser Nanopatterning of Superconducting Heterostructures in Topological Sn Thin Films

open access: yesAdvanced Materials, EarlyView.
We demonstrate successful fabrication of high‐quality α‐Sn/β‐Sn planar nanostructures with arbitrary shapes by focused laser irradiation on topological Dirac semimetal α‐Sn thin films. The irradiated regions transform into atomically smooth, superconducting β‐Sn with a critical temperature of 3.7 K.
Le Duc Anh   +5 more
wiley   +1 more source

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