نتایج جستجو برای: travel

تعداد نتایج: 45149  

Journal: :BMJ 2011
Natasha L Hezelgrave Christopher J M Whitty Andrew H Shennan Lucy C Chappell

As travel increases, the number of pregnant women who travel will probably rise. Women often ask if travel is safe in pregnancy and seek advice from a range of healthcare professionals. Travel related maternal and fetal morbidity and mortality can be completely avoided only by postponing travel until after delivery, but travel may be necessary or desirable during pregnancy. Most women are “low ...

2016
ADRIAN C. PRELIPCEAN

The increase in population, accompanied by an increase in the availability of travel opportunities have kindled the interest in understanding how people make use of the space around them and their opportunities. Understanding the travel behaviour of individuals and groups is difficult because of two main factors: the travel behaviour’s wide coverage, which encompasses different research areas, ...

2001
Nils Dahlbäck Nigel S. Gilbert Martha Pollack Candace L. Sidner

We discuss current approaches to the development of natural language dialogue systems, and claim that they do not sufficiently consider the unique qualities of man-machine interaction as distinct from general human discourse. We conclude that empirical studies of this unique communication situation is required for the development of user-friendly interactive systems. One way of achieving this i...

2017
Wenzhi Liu Huapu Lu Zhiyuan Sun Jing Liu

Travel by the elderly is generally characterized by relatively short distances and low frequencies. However, with social development, the travel patterns of the elderly are lacking in sustainability. In some European countries, the elderly are increasingly dependent on cars while traveling. In addition, the influencing factors of the elderly’s travel behavior are also changing. At present, most...

2011
N. J. A. van Exel G. de Graaf P. Rietveld

This article presents the results of a study exploring travellers’ preferences for middle-distance travel using Q-methodology. Respondents rank-ordered 42 opinion statements regarding travel choice and motivations for travel in general and for car and public transport as alternative travel modes. By-person factor analysis revealed four distinct preference segments for middle-distance travel: (1...

Journal: :iranian red crescent medical journal 0
morteza izadi health research center, baqiyatallah university of medical sciences, tehran, ir iran mohammad javad alemzadeh-ansari department of cardiology, tehran heart center, tehran university of medical sciences, tehran, ir iran; department of cardiology, tehran heart center, tehran university of medical sciences, tehran, ir iran. tel: +98-9166174016 davood kazemisaleh department of cardiology, baqiyatallah university of medical sciences, tehran, ir iran maryam moshkani-farahani department of cardiology, baqiyatallah university of medical sciences, tehran, ir iran

conclusions: thus, identifying the hf patients before the flight and providing them proper education about the events that may occur during flight is necessary. results: hf patients are more prone to experience respiratory distress, anxiety, stress, cardiac decompensation, and venous thromboembolism (vte) during air travel. although stable hf patients can tolerate air travel, but those with acu...

Donya Sheibani-Tehrani, Mansooreh Habibi Maria Sepehri Marzie Vaghefi Pouria Yazdian Anari

Introduction: Travel medicine is devoted to the health of travelers who visit foreign countries. It is an interdisciplinary specialty concerned not only with prevention of infectious diseases during travel but also with the personal safety of travelers and the avoidance of environmental risks. Methods: This review examines 15 appropriate papers by PRISMA ...

Journal: :J. of IT & Tourism 2008
Bernard J. Jansen Christopher C. Ciamacca Amanda Spink

In this article, the phenomenon of searching for travel information on the Web is reported. The issues of how predominant travel searching is on the Web, how people are searching for travel information on the Web, and what terms people are using to express their travel-related information needs are investigated. In this research, 2,465,145 interactions from 534,507 users of the commercial Web s...

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