UNDERSTANDING THE FPU STATE IN FPU-LIKE MODELS

Understanding the FPU state in FPU-like models

Many papers investigated, in a variety of ways, the so-called "FPU state" in the Fermi-Pasta-Ulam model, namely the state, intermediate Furniture between the initial state and equipartition, that the system soon reaches if initially one or a few long-wavelength normal modes are excited.The FPU state has been observed, in particular, to obey a few c

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Frequency of sleep disorders in patients with rheumatoid arthritis

Mohammad Mustafa,1 Yasser Bawazir,2 Leena Merdad,3 Siraj Wali,4 Suzan Attar,2 Omar Fathaldin,2 Sami Bahlas,2 Faris Alhejaili,4 Ahmed Aljohaney,4 Ahmed Jan,5 Fatima Jadu51Rheumatology Unit, Department of Medicine, University of Jeddah, Jeddah, Makkah, Kingdom of Saudi Arabia; 2Rheumatology Unit, Department of Medicine, King Abdulaziz University, Jed

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