We describe an exact solution of the nonlinear governing equations for the internal equatorial water waves with an underlying current in the f -plane approximation near the equator. Thesewaves travel westward at a constant speed, and a strong uniform horizontal current underlies the flow. © 2014 Elsevier Ltd. All rights reserved.

Jet lag sleep disorder and shift work sleep disorder are the result of dyssynchrony between the internal clock and the external light-dark cycle, brought on by rapid travel across time zones or by working a nonstandard schedule. Symptoms can be minimized by optimizing the sleep environment, by strategic avoidance of and exposure to light, and also with drug and behavioral therapies.

This article explores the development of previous models to determine hubs in a competitive environment. In this paper, by comparing parameters of the ticket price, travel time and the service quality of hub airports, airline hubs are divided into six categories. The degree of importance of travel time and travel cost are determined by a multivariate Lagrange interpolation method, which can pla...

Mode travel time estimation in the presence of internal waves (IWs) is a challenging problem. IWs perturb the sound speed, which results in travel time wander and mode scattering. A standard approach to travel time estimation is to pulse compress the broadband signal, pick the peak of the compressed time series, and average the peak time over multiple receptions to reduce variance. The peak-pic...

introduction: increasing international travel to low-income areas is confronting travelers with new health threats. this study investigated international travelers’ health advice, behavior, and information needs in a low-income setting.methods: this is a descriptive and cross-sectional study. between october 27–31, 2014, 127 semi-structured surveys were conducted in jinja, uganda with internati...

Introduction: Last-minute travelers (LMTs) are a vulnerable group, because it may not be possible to adequately vaccinate them against exposure to infectious diseases. The purpose of this retrospective cross-sectional study was to describe the characteristics of LMTs attending a travel health clinic. Methods: The following data was extracted from records ...

in this paper the factors having influence on travel demand to iran are paper explored. the hypothesis of the research specifies the variable of “domestic upheavals and insecurity” as the most significant obstacle to expansion of the demand for travel to iran. to test the above hypothesis, first several demand models that have been proposed to study demand for tourism in different countries, ar...

Computer Networking is necessary to human beings. Peoples needed to share ideas, research knowledge, and the way of life to their friends. In the modern time, the role of computer networks became dreamy. Analyzing, accessing, sharing and storing of data and information are very easy with help of distributing computer networking. Social networking sites look after human communication in a better...

modern world faces a multitude of challenges regarding displacement including high fuel consumption, air pollution, congestion in streets, decrease in physical activities, insecurity of passers-by etc. most of which result from dependence on automobiles and the vehicle-stricken urban forms. planners and public health officials are turning to land planning and urban design for help in reducing a...