Results 161 to 170 of about 1,426,127 (317)

Periodic Orbits with Least Period Three on the Circle

Fixed Point Theory and Applications, 2008
The self-maps on the circle having periodic orbits with least period 3 are classified into relative homotopy-conjugacy classes. We will show that except for the maps in one exceptional class, all these kinds of maps have periodic orbits with all least ...
Xuezhi Zhao
doaj   +1 more source

Short‐term actions of epigalocatechin‐3‐gallate in the liver: a mechanistic insight into hypoglycemic and potential toxic effects

FEBS Open Bio, EarlyView.
Epigallocatechin‐3‐gallate (EGCG) acutely inhibited gluconeogenesis and enhanced glycolysis, glycogenolysis, and fatty acid oxidation in perfused rat livers. Mechanistic assays revealed mitochondrial uncoupling, inhibition of pyruvate carboxylation and glucose‐6‐phosphatase, shift of NADH/NAD+ ratios toward oxidation, and loss of membrane integrity ...
Carla Indianara Bonetti, Bruna Lopes Correia, Francielle Cristina Nakamura Manicardi, Nairana Mithieli de Queiroz Eskuarek Melo, Vanesa de Oliveira Pateis, Jurandir Fernando Comar, Anacharis Babeto de Sá‐Nakanishi, Adelar Bracht, Lívia Bracht   +8 more
wiley   +1 more source

On the fixed points of a Hamiltonian diffeomorphism in presence of fundamental group

, 2014
Let M be a weakly monotone symplectic manifold, and H be a time-dependent Hamiltonian; we assume that the periodic orbits of the corresponding time-dependent Hamiltonian vector field are non-degenerate.
Ono, Kaoru, Pajitnov, Andrei
core  

Rethinking plastic waste: innovations in enzymatic breakdown of oil‐based polyesters and bioplastics

FEBS Open Bio, EarlyView.
Plastic pollution remains a critical environmental challenge, and current mechanical and chemical recycling methods are insufficient to achieve a fully circular economy. This review highlights recent breakthroughs in the enzymatic depolymerization of both oil‐derived polyesters and bioplastics, including high‐throughput protein engineering, de novo ...
Elena Rosini, Nicolò Antonelli, Gianluca Molla   +2 more
wiley   +1 more source

Production of antibacterial compounds by a Steely hybrid polyketide synthase in Dictyostelium

FEBS Open Bio, EarlyView.
By selecting appropriate production species under optimised culture conditions, new chlorinated dibenzofuran compounds, which previously could not be analysed in sufficient quantities, were identified from cellular slime mould fruiting bodies. The strong antibacterial activity exhibited by these compounds suggests a link to the ecological function of ...
Tomoaki R. Yamashita, Toyonobu Usuki, Robert R. Kay, Tamao Saito   +3 more
wiley   +1 more source

On Using Curvature to Demonstrate Stability

Differential Equations and Nonlinear Mechanics, 2008
A new approach for demonstrating the global stability of ordinary differential equations is given. It is shown that if the curvature of solutions is bounded on some set, then any nonconstant orbits that remain in the set, must contain points that lie ...
C. Connell McCluskey
doaj   +1 more source

Impact of a senior research thesis on students' perceptions of scientific inquiry in distinct student populations

FEBS Open Bio, EarlyView.
This study addressed how a senior research thesis is perceived by undergraduate students. It assessed students' perception of research skills, epistemological beliefs, and career goals in Biochemistry (science) and BDC (science‐business) students. Completing a thesis improved confidence in research skills, resilience, scientific identity, closed gender‐
Celeste Suart, Haley L. Zubyk, Michelle Ogrodnik, Caitlin E. Mullarkey, Felicia Vulcu   +4 more
wiley   +1 more source

Multimodal Autonomic Biomarkers Predict Phenoconversion in Pure Autonomic Failure

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Background Pure autonomic failure (PAF) presents with autonomic failure without other neurological features. A third develop central neurological features, fulfilling criteria for multiple system atrophy (MSA) and Lewy body diseases (LBD), including Parkinson's disease and Dementia with Lewy bodies.
S. Koay, E. Vichayanrat, F. Bremner, F. Valerio, R. Mackenzie, G. Chiaro, G. Ingle, P. McNamara, L. Watson, J. N. Panicker, M. P. Lunn, C. Mathias, V. Iodice   +12 more
wiley   +1 more source

Translating a Preclinically Tested 15 Hz rTMS Protocol to Humans With Chronic Spinal Cord Injury: A Safety and Feasibility Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives Repetitive transcranial magnetic stimulation (rTMS) is a non‐invasive brain stimulation strategy with a demonstrated potential to reinforce the residual pathways after a spinal cord injury (SCI). A preclinically tested high‐frequency (15 Hz) rTMS (15 Hz rTMS) protocol was shown to induce corticospinal tract axon regeneration growth ...
Nabila Brihmat, Mehmed B. Bayram, Morgan Paine, Janelle Carnahan, Jian Zhong, Xiaofei Guan, Guang H. Yue, Soha Saleh, Gail F. Forrest   +8 more
wiley   +1 more source

Precessing and periodic timelike orbits and their potential applications in Einsteinian cubic gravity

European Physical Journal C: Particles and Fields
Einsteinian cubic gravity (ECG) is the most general theory up to cubic order in curvature, which has the same graviton spectrum as the Einstein theory. In this paper, we investigate the geodesic motions of timelike particles around the four dimensional ...
Yong-Zhuang Li, Xiao-Mei Kuang, Yu Sang
doaj   +1 more source