Results 121 to 130 of about 605,265 (316)

Thermosoluted Marangoni convective flow towards a permeable Riga surface

open access: yesOpen Physics, 2020
This study reveals the characteristics of chemical reaction on Marangoni mixed convective stream towards a penetrable Riga surface. The heat and mass phenomena are analysed within the sight of Dufour and Soret impacts.
Shafiq Anum   +3 more
doaj   +1 more source

Chemistry: Symmetry/Asymmetry

open access: yes, 2023
All kinds of symmetry-related problems in organic and inorganic chemistry may be the subject of papers submitted to Symmetry [...
György Keglevich
core   +1 more source

Clinical Practice Guideline for Evaluation and Management of Peripheral Nervous System Manifestations in Sjögren's Disease

open access: yesArthritis Care &Research, EarlyView.
Objective Sjögren's disease is an autoimmune disorder that can impact multiple organ systems, including the peripheral nervous system (PNS). PNS manifestations, which can exist concurrently, include mononeuropathies, polyneuropathies, and autonomic nervous system neuropathies.
Anahita Deboo   +88 more
wiley   +1 more source

Group Classification of a Generalized Lane-Emden System

open access: yesJournal of Applied Mathematics, 2013
We perform the group classification of the generalized Lane-Emden system xu′′+nu′+xHv=0,  xv′′+nv′+xgu=0, which occurs in many applications of physical phenomena such as pattern formation, population evolution, and chemical reactions.
Ben Muatjetjeja   +2 more
doaj   +1 more source

The Meaning of Spontaneous Symmetry Breaking (I): From a simple classical model [PDF]

open access: yes, 2002
This paper, part I of a two-part project, aims at answering the simple question 'what is spontaneous symmetry breaking?' by analyzing from a philosophical perspective a simple classical model.
Liu, Chuang
core  

Gauge symmetry as symmetry of matrix coordinates [PDF]

open access: yesThe European Physical Journal C, 2000
We propose a new point of view to gauge theories based on taking the action of symmetry transformations directly on the coordinates of space. Via this approach the gauge fields are not introduced at the first step, and they can be interpreted as fluctuations around some classical solutions of the model. The new point of view is connected to the lattice
openaire   +3 more sources

Risk of Retinopathy Associated with Long‐Term Use of Hydroxychloroquine in Patients with Rheumatic Diseases: A Systematic Review and Meta‐Analysis

open access: yesArthritis Care &Research, EarlyView.
Objective We aimed to estimate the prevalence and cumulative incidence of hydroxychloroquine retinopathy (HCQ‐R) and its risk factors among patients receiving long‐term HCQ with rheumatic diseases through a systematic review and meta‐analysis of observational studies that used spectral‐domain optical coherence tomography (SD‐OCT) for screening ...
Narsis Daftarian   +4 more
wiley   +1 more source

Nonparametric Tests for Conditional Symmetry in Dynamic Models. [PDF]

open access: yes
This article proposes omnibus tests for conditional symmetry around a parametric function in a dynamic context. Conditional moments may not exist or may depend on the explanatory variables.
Delgado, Miguel A.   +1 more
core  

Generalised CP and A4 family symmetry

open access: yes, 2013
We perform a comprehensive study of family symmetry models based on A4 combined with the generalised CP symmetry H CP. We investigate the lepton mixing parameters which can be obtained from the original symmetry A4 ?
Stuart, Alexander J.   +2 more
core   +1 more source

Symmetry–simplicity, broken symmetry–complexity

open access: yesInterface Focus, 2023
Complex phenomena are made possible when: (i) fundamental physical symmetries are broken and (ii) from the set of broken symmetries historically selected ground states are applied to performing mechanical work and storing adaptive information. Over the course of several decades Philip Anderson enumerated several key principles that can follow from ...
openaire   +2 more sources

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