This paper proposes a method of discovering some kinds of di erential equations with interval coe cients, which characterize or explain numerical data obtained by scienti c observations and experiments. Such numerical data inevitably involve some ranges of errors, and hence they are represented by closed intervals in this paper. Based on these intervals, we design some interval inclusions which...

OBJECTIVE To investigate the repeatability and criterion related validity of the 20 m multistage fitness test (MFT) for predicting maximal oxygen uptake (Vo(2max)) in active young men. METHODS Data were gathered from two phases using 30 subjects (x+/-s; age = 21.8+/-3.6 years, mass = 76.9+/-10.7 kg, stature = 1.76+/-0.05 m). MFT repeatability was investigated in phase 1 where 21 subjects perf...

is pocket-sized handbook off ers a concise approach to patients presenting with a variety of neurological emergencies. Each chapter is co-authored by an emergency medicine physician and a subspecialist in the area being covered (usually a neurologist). In this way, it provides a balance of both perspectives – neither neglecting the basic issues around initial stabilization and diff erential dia...

OBJECTIVES The purpose of this study was to determine the mechanisms responsible for reduced aerobic capacity (peak Vo(2)) in patients with heart failure with preserved ejection fraction (HFPEF). BACKGROUND HFPEF is the predominant form of heart failure in older persons. Exercise intolerance is the primary symptom among patients with HFPEF and a major determinant of reduced quality of life. I...

in this paper, the convergence of zakharov-kuznetsov (zk) equation by homo- topy analysis method (ham) is investigated. a theorem is proved to guarantee the conver- gence of ham and to nd the series solution of this equation via a reliable algorithm.

Our knowledge of the social and economic development of past societies and the people within them can be increased through an understanding of specialized activities. If an activity was time-consuming or arduous, especially when begun at an early age and the bones still growing, the bone morphology can be modifi ed and techniques of production used in the past are recorded. Th e predisposing re...

In this paper, a numerical method is presented for proving the existence and inclusion of connecting orbits of continuous dynamical systems described by parameterized nonlinear ordinary di erential equations. Taking a certain second order nonlinear ordinary di erential equaiton as an example, the existence of homoclinic bifurcation points is proved by the method.