Results 71 to 80 of about 716,407 (270)
Symmetry reduction of Chazy equation
In this study, invariant group of the Chazy Equation found by symmerty group analysis. First and second reduction made by the method of differential invariant. This equation is finally reduced to first-order ODE. Solution of first-order ODE made by Phase-Plane Tecniques.
openaire +3 more sources
Mouse pre‐implantation development involves a transition from totipotency to pluripotency. Integrating transcriptomics, epigenetic profiling, low‐input proteomics and functional assays, we show that eight‐cell embryos retain residual totipotency features, whereas cytoskeletal remodeling regulated by the ubiquitin‐proteasome system drives progression ...
Wanqiong Li +8 more
wiley +1 more source
Symmetry and reduction in implicit generalized Hamiltonian systems [PDF]
In this paper the notion of symmetry for implicit generalized Hamiltonian systems will be studied and a reduction theorem, generalizing the 'classical' reduction theorems of symplectic and Poisson-Hamiltonian systems, will be derived ...
Blankenstein, G., Schaft, A.J. van der
core +6 more sources
The symmetry reduction equations, similarity solutions, sub-groups and exact solutions of the (3+1)-dimensional nonlinear incompressible non-hydrostatic Boussinesq equations with viscosity (INHBV equations), which describe the atmospheric gravity waves ...
Ping Liu +3 more
doaj +1 more source
Accelerated Progression of Gait Impairment in Parkinson's Disease and REM Sleep Without Atonia
ABSTRACT Objective People with Parkinson's disease (PD) and rapid eye movement (REM) sleep without atonia (RSWA) often have more severe gait disturbances compared to PD without RSWA. The association between the presence and expression of RSWA and the rate of progression of gait impairment in PD is unknown.
Sommer L. Amundsen‐Huffmaster +11 more
wiley +1 more source
ABSTRACT Background Neurodegeneration with brain iron accumulation (NBIA) comprises a genetically and clinically heterogeneous group of rare neurological disorders characterized particularly by iron accumulation in the basal ganglia. To date, 15 genes have been associated with NBIA.
Seda Susgun +95 more
wiley +1 more source
Dilaton from tractor and matter field from twistor
Conformal tractors and twistors can be obtained via gauge reduction of the conformal Cartan geometry, thanks to the dressing field method. Perhaps surprisingly, it is possible to reduce the gauge symmetry further still.
J. François
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Symmetries and reduction in nonholonomic mechanics
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Borisov, A.+V., Mamaev, I.+S.
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Classical and Quantum Symmetries Reduction and Integrability [PDF]
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Marmo, Giuseppe +2 more
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ABSTRACT Background Apolipoprotein ε4 (APOE ε4) is a potent genetic risk factor for Alzheimer's disease (AD). However, its role in cerebral small vessel disease (CSVD) remains unclear. Given the clinical and pathological similarities between CSVD and AD, this study aimed to investigate the associations of APOE ε4 gene dosage with cognitive function and
Tingru Jin +6 more
wiley +1 more source

