We consider a chain of Lorenz ’63 systems connected through a local, nearest-neighbour coupling. We refer to the resulting system as the Lorenz–Fermi–Pasta–Ulam lattice because of its similarity to the celebrated experiment conducted by Fermi, Pasta and Ulam. At large coupling strengths, the systems synchronize to a global, chaotic orbit of the Lorenz attractor. For smaller coupling, the synchr...

The Fermi-Pasta-Ulam α-model of harmonic oscillators with cubic anharmonic interactions is studied from a statistical mechanical point of view. Systems of N = 32 to 128 oscillators appear to be large enough to suggest statistical mechanical behavior. A key element has been a comparison of the maximum Lyapounov coefficient λmax of the FPU α-model and that of the Toda lattice. For generic initial...

Penggunaan pasta gigi yang mengandung fluor untuk mencegah dan mengendalikan karies sudah direkomendasikan oleh dokter namun kurangnya informasi mengenai keamanan efektifitas penggunaan anak-anak, mengakibatkan pesan tidak konsisten rekomendasi anak-anak. Berbagai upaya dilakukan para ahli dapat memberikan bayi anak memaksimalkan efek pencegahan meminimalkan risiko fluorosis. Pasta gigi, termas...

We study the properties of spatially localized and time-periodic excitations--discrete breathers--in Fermi-Pasta-Ulam (FPU) chains. We provide a detailed analysis of their spatial profiles and stability properties. We especially demonstrate that the Page mode is linearly stable for symmetric FPU potentials. A resonant interaction between a localized and delocalized perturbations causes weak but...

BACKGROUND The present study identified the most commonly consumed grain food patterns in US children and adolescents (2-18 years-old; N = 8,367) relative to those not consuming grains and compared diet quality and nutrient intakes, with focus on 2015-2020 Dietary Guidelines for Americans (2015-2020 DGA) shortfall nutrients. METHODS Cluster analysis using data from the National Health and Nut...

There has been a growing demand for the production of gluten-free products due to increased occurrence celiac disease. Thus, different research groups have investigating use various available materials development these functional fulfill customer’s needs. Horse Chestnut (Aesculus indica) seeds are underutilized, low-cost, and gluten-free, found in hilly areas Himalayan region Kashmir valley, I...