Search results for "Travel"
showing 10 items of 402 documents
Josephson Traveling Wave Parametric Amplifiers as Non-Classical Light Source for Microwave Quantum Illumination
2021
Abstract Detection of low-reflectivity objects can be enriched via the so-called quantum illumination procedure. In order that this quantum procedure outperforms classical detection protocols, entangled states of microwave radiation are initially required. In this paper, we discuss the role of Josephson Traveling Wave Parametric Amplifiers (JTWPAs), based on circuit-QED components, as suitable sources of a two-mode squeezed vacuum state, a special signal-idler entangled state. The obtained wide bandwidth makes the JTWPA an ideal candidate for generating quantum radiation in quantum metrology and information processing applications.
Tūristu ceļošanas motivācijas un to ietekmējošie faktori.
2018
Bakalaura darba tēma „Tūristu ceļošanas motivācijas un to ietekmējošie faktori”. Bakalaura darba mērķis - pamatojoties uz teorētiskām atziņām un iedzīvotāju aptaujas rezultātiem, izpētīt tūrisma ceļošanas motivācijas un to ietekmējošos faktorus, atklāt nepilnības un sniegt priekšlikumus tūristu piesaistes veicināšanai. Darbs sastāv no 3 nodaļām. Pirmajā nodaļā autore sniedz ar ceļošanas motivāciju saistītu teorētisko aspektu raksturojumu. Otrajā nodaļā tiek sniegta Latvijas iedzīvotāju ceļošanas motivāciju analīze. Trešajā nodaļā autore apkopo Latvijas tūristu ceļošanas iemeslus. Darbs sastāv no 76 lapapusēm, tajā ir iekļautas 17 tabulas, 22 attēli kā arī darbs papildināts ar 2 pielikumiwm.
Mārketinga komunikācijas attīstīšana firmai SIA "Travel art LV".
2018
Bakalaura darba tēma: Mārketinga komunikācijas attīstīšana firmai sia “Travel Art LV”. Apskatāmā problēma - firmā “Travel Art LV” ir slikti attīstīta mārketinga projektu plānošana, virzīšana, kas kavē firmas straujāku attīstību, atpazīstamības veicināšanu. Izvirzītais pētījuma mērķis - noteikt mārketinga komunikācijas attīstīšanas iespējas un piedāvāt savu komunikācijas plānu gada griezumā. Darbā veikta anketēšana, intervija un analīze par jaunas potenciālās mērķauditorijas piesaistes iespējām - tās zināšanas par firmu, sporta braucieniem, vidi, kurā smeļas iedvesmu. Analīzes rezultātā autore piedāvā firmai mārketinga komunikācijas plānu, kas balstīts uz komunikāciju interneta vidē, uzsvaru…
From corona virus to corona crisis : the value of an analytical and geographical understanding of crisis
2020
Abstract The term ‘crisis’ is omnipresent. The current corona virus pandemic is perceived as the most recent example. However, the notion of crisis is increasingly deployed as a signifier of relevance, rather than as an analytical concept. Moreover, human geography has so far little contributed to the interdisciplinary crisis research field which is fixated on the temporal aspects of crisis but neglects its spatiality. Against this background, the first aim of the paper is to demonstrate the value of thinking about crisis analytically. Therefore, we introduce theoretical knowledge developed within a recently emerging literature on crisis management. Second, we demonstrate the relevance of i…
Dryland vegetation pattern dynamics driven by inertial effects and secondary seed dispersal
2022
This manuscript tackles the study of vegetation pattern dynamics driven by inertial effects and secondary seed dispersal. To achieve this goal, an hyperbolic extension of the classical parabolic Klausmeier model of vegetation, generally used to predict the formation of banded vegetation along the slopes of semiarid environments, has been here considered together with an additional advective term mimicking the downslope motion of seeds. Linear stability analyses have been carried out to inspect the dependence of the wave instability locus on the model parameters, with particular emphasis on the role played by inertial time and seed advection speed. Moreover, periodic travelling wave solution…
Sun-induced chlorophyll fluorescence II: Review of passive measurement setups, protocols, and their application at the leaf to canopy level
2019
Imaging and non-imaging spectroscopy employed in the field and from aircraft is frequently used to assess biochemical, structural, and functional plant traits, as well as their dynamics in an environmental matrix. With the increasing availability of high-resolution spectroradiometers, it has become feasible to measure fine spectral features, such as those needed to estimate sun-induced chlorophyll fluorescence (F), which is a signal related to the photosynthetic process of plants. The measurement of F requires highly accurate and precise radiance measurements in combination with very sophisticated measurement protocols. Additionally, because F has a highly dynamic nature (compared with othe…
Leishmaniasis in travelers: A literature review.
2014
Leishmaniasis is a vector-borne protozoan infection whose clinical spectrum ranges from asymptomatic infection to fatal visceral leishmaniasis. Over the last decades, an increase in imported leishmaniasis cases in developed, non-endemic countries, have been pointed-out from a review of the international literature. Among the possible causes are increasing international tourism, influx of immigrants from endemic regions and military operations. The main area for the acquisition of cutaneous leishmaniasis, especially for adventure travelers on long-term trips in highly-endemic forested areas, is represented from South America, whereas popular Mediterranean destinations are emerging as the mai…
Tra antichità e medioevo: viaggiatori, architetti e intellettuali in Sicilia fra gli anni venti e trenta dell’Ottocento
2016
Quando Eugène Emmanuel Viollet-le-Duc raggiunge la Sicilia nell’aprile del 1836 è un giovanissimo professore dell’Ecole de dessin de Paris in procinto di compiere quello che per numerosissimi suoi precursori era diventato, ormai da diversi decenni, una tappa obbligata del Grand Tour in Italia. Frotte di rampolli dell’aristocrazia europea, ma soprattutto artisti e cultori di antichità avevano attraversato negli anni precedenti le strade talvolta perigliose dell’isola alla ricerca delle vestigia di mitiche città come Agrigento, Siracusa, Selinunte ecc., spesso tenendo insieme passione ar- cheologica e gusto del pittoresco, come può testimoniare il vastissimo repertorio iconogra co che abbiamo…
Impact of COVID-19 pandemic on mobility in ten countries and associated perceived risk for all transport modes.
2021
The restrictive measures implemented in response to the COVID-19 pandemic have triggered sudden massive changes to travel behaviors of people all around the world. This study examines the individual mobility patterns for all transport modes (walk, bicycle, motorcycle, car driven alone, car driven in company, bus, subway, tram, train, airplane) before and during the restrictions adopted in ten countries on six continents: Australia, Brazil, China, Ghana, India, Iran, Italy, Norway, South Africa and the United States. This cross-country study also aims at understanding the predictors of protective behaviors related to the transport sector and COVID-19. Findings hinge upon an online survey con…
The contribution of human migration to tourism: The VFR travel between the EU28 member states
2017
This study explores the correlation between human migration and that part of tourism due to people visiting friends and relatives in a foreign country. We first compared the network structure of migration stocks and tourism flows between the 28 member countries of the European Union over the period 2000–2012. Then, we performed several econometric analyses to study the main tourism determinants and the correlations between migration to tourism. The paper derives from the discussion of the results an estimate of the contribution to the overall tourism phenomenon due to visiting friends and relatives. Complex network analysis and gravity models were the investigation methods preferred.