905 resultados para Vehicle miles of travel.


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Scenes of travel.--Characteristics of nature.--Painting and painters.--Architecture and sculpture.--Ethical.--Miscellaneous.

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First edition published in 1871 titled Among my books. This 1876 edition includes new introductory material.

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Cox, Edward, "Reference guide to the literature of travel",

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Each volume has special t.p. only.

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Vol. [10] published by D. Appleton & Co.

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Caption title: Ecological notes on the birds occurring within a radius of five miles of the Indiana university campus.

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"Outward bound" edition.

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Series title at head of t.-p. reads: The illustrated library of travel, exploration and adventure.

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"La Mara" i.e. Ida Maria Lipsius.

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As human papillomavirus-like particles (HPV-VLP) represent a promising vaccine delivery vehicle, delineation of the interaction of VLP with professional APC should improve vaccine development. Differences in the capacity of VLP to signal dendritic cells (DC) and Langerhans cells (LC) have been demonstrated, and evidence has been presented for both clathrin-coated pits and proteoglycans (PG) in the uptake pathway of VLP into epithelial cells. Therefore, we compared HPV-VLP uptake mechanisms in human monocyte-derived DC and LC, and their ability to cross-present HPV VLP-associated antigen in the MHC class I pathway. DC and LC each took up virus-like particles (VLP). DC uptake of and signalling by VLP was inhibited by amiloride or cytochalasin D (CCD), but not by filipin treatment, and was blocked by several sulfated and non-sulfated polysaccharides and anti-CD16. In contrast, LC uptake was inhibited only by filipin, and VLP in LC were associated with caveolin, langerin, and CD1a. These data suggest fundamentally different routes of VLP uptake by DC and LC. Despite these differences, VLP taken up by DC and LC were each able to prime naive CD8(+) T cells and induce cytolytic effector T cells in vitro. (C) 2004 Elsevier Inc. All rights reserved.

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It is technically feasible for mobile social software such as pairing or ‘matchmaking’ systems to introduce people to others and assist information exchange. However, little is known about the social structure of many mobile communities or why they would want such pairing systems. While engaged in other work determining requirements for a mobile travel assistant we saw a potentially useful application for a pairing system to facilitate the exchange of travel information between backpackers. To explore this area, we designed two studies involving usage of a low-fidelity role prototype of a social pairing system for backpackers. Backpackers rated the utility of different pairing types, and provided feedback on the social implications of being paired based on travel histories. Practical usage of the social network pairing activity and the implications of broader societal usage are discussed.

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Developing a market orientation is one of the key issues in market-orientation research. In this study, based on a survey of top managers from 143 Chinese hotels and 72 travel services—two tourism sectors with distinctly different business environments—we explore the effects of environmental conditions on the development of market orientation. In particular we examine whether environmental conditions have a direct impact on the level of market orientation or whether they moderate the relationship between market orientation and its antecedents. We find that the effectiveness of top management emphasis varies under different environmental conditions but that the impact of other antecedents is not influenced by environmental conditions.