Search results for "Travel"

Astronomy and space on the big screen : how accurately has cinema portrayed space travel and other astrophysical concepts?

2016

"Since its origins, cinema has been fascinated with the subject of scientific developments. In particular, astronomy and astrophysics have played an important role in science fiction stories about space travel and exploration. Though the science has not always been accurately represented, in the last decades there has been more and more interest from the cinema industry in approaching scientists to make sure that the stories and concepts shown in films are closer to our true understanding of the universe. In this article, I will explore how cinema has portrayed astrophysical concepts throughout the decades, and how sometimes cinema has even inspired the direction of scientific research."

Współczesny (neo)nomadyzm a edukacja kulturowa

2014

The aim of the article is to notice the cultural-cognitive character of the contemporary travel. Chasing the exotic, understood as a trial to save the authentic, has gained much strength in the world threatened by cultural unification. The vision of the world not touched by the Western culture has become a perfect selling material. This trend has been confirmed by incredibly popular traveling programs, as well as a rich and original offer of the traveling agencies, tempting clients with meeting the world of the Masai, Hamer or Mursi tribes. In the age of globalization the cultural tourism is an important alternative to mass travel, mainly aimed at entertainment.

Barriers and (im)mobility in Rio de Janeiro

2016

In Rio de Janeiro, immobility or the share of people with no journeys on any given day is very high (46%). Immobility has a marked geographical dimension in what is a segregated city. But income has only limited explanatory power. The population structure, with high proportions of people who are not in the labour force and who are unemployed, accounts for the high levels of immobility in the poor districts. Although population structure effects prevail, spatial factors such as the severance effect also account for differences between districts. Indeed, Rio de Janeiro features many different types of barriers that affect immobility in several districts and for several population groups. The…

A branch-and-cut algorithm for the Team Orienteering Problem

2017

The Team Orienteering Problem aims at maximizing the total amount of profit collected by a fleet of vehicles while not exceeding a predefined travel time limit on each vehicle. In the last years, several exact methods based on different mathematical formulations were proposed. In this paper, we present a new two-index formulation with a polynomial number of variables and constraints. This compact formulation, reinforced by connectivity constraints, was solved by means of a branch-and-cut algorithm. The total number of instances solved to optimality is 327 of 387 benchmark instances, 26 more than any previous method. Moreover, 24 not previously solved instances were closed to optimality.

Relational content of travel and tourism websites

2006

Developments in information technologies are having a far-reaching impact on the travel and tourism industry. This paper analyses the use of the internet as a relational tool for travel and tourism companies providing air travel and rent-a-car services. The empirical research results show the role the internet plays in increasing sales and how companies use different relational tools to gain consumer trust and commitment.

Management Attitudes towards the Carbon Footprint of Business Traveling

2008

Ceļojumu aprakstu izdošanas tradīcijas latviešu grāmatniecībā

2015

Lai gan ceļojumu literatūra ieņem savu noteiktu vietu gan veikalu, gan bibliotēku grāmatu plauktos, ceļojumu aprakstu izdošana un to ietekme uz lasītājiem, ir maz pētīts temats. Līdz šim nav apkopots visu izdoto ceļojumu aprakstu izdevumu klāsts Latvijā. Pētījuma mērķis ir izpētīt ceļojumu aprakstu izdevumu izdošanas tradīcijas Latvijā, kā arī apkopot Latvijā izdotos ceļojumu aprakstu izdevumus, salīdzināt latviešu un ārzemju ceļojumu izdevumus un to īpatsvaru. Darba ietvaros tika analizētas ceļojumu aprakstu definīcijas. Darba gaitā tiek veidota ceļojumu aprakstu grāmatu bibliogrāfija laika posmam no 1991.gada līdz 2014.gadam. Izveidotā bibliogrāfija to veido 106 Latvijā ceļojumu aprakstu …

Long-term cropping systems and tillage management effects on soil organic carbon stocks and steady state level of C sequestration rates in a semiarid…

2010

A calcareous and clayey xeric Chromic Haploxerept of a long-term experimental site in Sicily (Italy) was sampled (0–15 cm depth) under different land use management and cropping systems (CSs) to study their effect on soil aggregate stability and organic carbon (SOC). The experimental site had three tillage managements (no till [NT], dual-layer [DL] and conventional tillage [CT]) and two CSs (durum wheat monocropping [W] and durum wheat/faba bean rotation [WB]). The annually sequestered SOC with W was 2·75-times higher than with WB. SOC concentrations were also higher. Both NT and CT management systems were the most effective in SOC sequestration whereas with DL system no C was sequestered. …

The influence of weathering processes on labile and stable organic matter in Mediterranean volcanic soils

2008

The relationship and mechanisms among weathering processes, cation fluxes, clay mineralogy, organic matter composition and stability were studied in soils developing on basaltic material in southern Italy (Sicily). The soils were transitions between Phaeozems and Vertisols. Intense losses of the elements Na, Ca and Mg were measured indicating that weathering has occurred over a long period of time. The main weathering processes followed the sequence: amphibole, mica, volcanic glass or if ash was the primary source→smectite→interstratified smectite–kaolinite→kaolinite. Kaolinite formation was strongly related to high Al, Mg and Na losses. The good correlation between oxyhydroxides and kaolin…

The emission reduction potentials of First Generation Electric Aircraft (FGEA) in Finland

2020

Under the looming climate crisis, aviation needs to find new solutions to cut its greenhouse gas emissions. One pathway towards zero emissions is the use of electric aircraft. While current battery technology will not allow for medium and long-haul flights at full capacity, on short-haul routes First Generation Electric Aircraft (FGEA) could play a significant role in the near future. Current FGEA under development could carry 9–19 passengers on distances of 400–1046 km by 2025. This study focuses on the emissions reduction potentials of FGEA in Finland. It compares the carbon dioxide equivalent (CO2-eq) emissions and real travel times (RTT) from door-to-door of FGEA on 47 routes with exist…