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  1. Article: Research and innovation paving the way for climate neutrality in urban transport: Analysis of 362 cities on their journey to zero emissions.

    Christidis, Panayotis / Ulpiani, Giulia / Stepniak, Marcin / Vetters, Nadja

    Transport policy

    2024  Volume 148, Page(s) 107–123

    Abstract: The EU Mission on Climate Neutral and Smart Cities is an ambitious initiative aiming to involve a wide range of stakeholders and deliver 100 climate-neutral and smart cities by 2030. We analysed the information submitted in the expressions of interest by ...

    Abstract The EU Mission on Climate Neutral and Smart Cities is an ambitious initiative aiming to involve a wide range of stakeholders and deliver 100 climate-neutral and smart cities by 2030. We analysed the information submitted in the expressions of interest by 362 candidate cities. The majority of the cities' strategies for climate neutrality include urban transport as a main sector and combine the introduction of new technologies with the promotion of public transport and active mobility. We combined the information from the EU Mission candidate cities with data from the CORDIS and TRIMIS databases, and applied a clustering algorithm to measure proximity to foci of H2020 funding. Our results suggest that preparedness for the EU Mission is correlated with research and innovation activities on transport and mobility. Horizon 2020 activities specific to transport and mobility significantly increased the likelihood of a city to be a candidate. Among the various transport technology research pathways, smart mobility appears to have a major role in the development of solutions for climate neutrality.
    Language English
    Publishing date 2024-02-26
    Publishing country Netherlands
    Document type Journal Article
    ISSN 0967-070X
    ISSN 0967-070X
    DOI 10.1016/j.tranpol.2024.01.008
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article ; Online: Active mobility versus motorized transport? User choices and benefits for the society.

    Pisoni, E / Christidis, P / Navajas Cawood, E

    The Science of the total environment

    2021  Volume 806, Issue Pt 2, Page(s) 150627

    Abstract: Measures promoting active mobility - walking or cycling - are often seen as an effective strategy to meet multiple urban objectives. The advantages of such behavioural changes cover multiple dimensions at public and individual level, including positive ... ...

    Abstract Measures promoting active mobility - walking or cycling - are often seen as an effective strategy to meet multiple urban objectives. The advantages of such behavioural changes cover multiple dimensions at public and individual level, including positive impacts on health, safety, climate, economy, environment and air quality. However, there is still a considerable potential for increasing the uptake of active mobility in urban areas. This paper explores the determinants of active mobility choice and compares the demographic, socio-economic and cultural factors that influence it. The methodology combines extensive survey data, an EU-wide transport model and detailed indicators of external costs of transport with a Gradient Boosting Machine Learning approach. The model based scenarios quantify the benefit in terms of external costs savings from increasing active mobility shares. Such savings - at EU level, can reach the amount of 15 billion euro per year for a shift of 10% of trips to active mobility modes.
    MeSH term(s) Air Pollution ; Bicycling ; Climate ; Income ; Transportation ; Walking
    Language English
    Publishing date 2021-09-27
    Publishing country Netherlands
    Document type Journal Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2021.150627
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  3. Article: How has COVID-19 changed private car use in European urban areas? An analysis of the effect of socio-economic characteristics and mobility habits.

    Vega-Gonzalo, Maria / Gomez, Juan / Christidis, Panayotis

    Transportation research. Part A, Policy and practice

    2023  Volume 172, Page(s) 103679

    Abstract: The private car has been identified as the main winner among transport modes in urban areas during the COVID-19 pandemic. The fear of contagion when using public transport or the decrease in road congestion are likely to have induced changes in citizens' ...

    Abstract The private car has been identified as the main winner among transport modes in urban areas during the COVID-19 pandemic. The fear of contagion when using public transport or the decrease in road congestion are likely to have induced changes in citizens' travel habits with respect to cars. This work investigates the impact of the pandemic on individuals' habits and preferences regarding their car ownership levels and car usage in the European urban context, with a special focus on the role played by individual socio-demographics and urban mobility patterns. For this purpose, a Path Analysis approach has been adopted to model car ownership and use before and after COVID-19. The main data source employed in this research is an EU-Wide Urban Mobility Survey that collects detailed information (individual and household socio-economic characteristics, built environment attributes and mobility habits) of 10,152 individuals from a total of 21 European urban areas of different sizes, geographical locations, and urban forms. The survey data has been complemented with city-level variables that account for differences across the cities that may explain changes in car-related behaviour. The results show that the pandemic has induced an increase in car use among socio-economic groups that are generally associated with low car-dependent behaviour, revealing that policy instruments that discourage the use of the private car in urban areas are needed to avoid reversing past trends in the reduction of urban transport emissions. High-income, well-educated teleworkers are observed to be the ones that have reduced their car use to a larger extent. On the contrary, low-income individuals are mostly maintaining similar levels of car mobility. Finally, frequent public transport users are more likely than occasional users to have substituted this mode by the private car.
    Language English
    Publishing date 2023-04-07
    Publishing country England
    Document type Journal Article
    ZDB-ID 2015887-7
    ISSN 0965-8564 ; 0191-2607
    ISSN 0965-8564 ; 0191-2607
    DOI 10.1016/j.tra.2023.103679
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  4. Article: Challenges for urban transport policy after the Covid-19 pandemic: Main findings from a survey in 20 European cities.

    Christidis, Panayotis / Navajas Cawood, Elena / Fiorello, Davide

    Transport policy

    2022  Volume 129, Page(s) 105–116

    Abstract: This article explores the changes in transport and mobility patterns that were triggered by the Covid-19 pandemic, as well as citizens' potential new expectations arising from this situation regarding public transport policy and urban planning. We ... ...

    Abstract This article explores the changes in transport and mobility patterns that were triggered by the Covid-19 pandemic, as well as citizens' potential new expectations arising from this situation regarding public transport policy and urban planning. We conducted an extensive survey in 20 cities across 11 European countries during the second quarter of 2021, with a total of 10000 respondents. The information that we collected covered the change in the frequency of technology-based alternatives to travel -such as teleworking and online shopping-compared to the pre-pandemic period. It also included the change in trip frequency, purpose, mode and destination. Using the survey dataset as input, we applied a classification model that explains the change in mode choice based on the respondent characteristics and preferences. Our findings suggest that the changes in mobility patterns induced by the pandemic are the result of the combination of the degree of mobility restrictions imposed in each city, the adoption of new lifestyle and work patterns, and individual choices that depend on personal risk aversion. We identify three main challenges for urban transport policy: the increasing use of car that can reinforce long-term car dependency, the avoidance of public transport that may lead to financial and operational instability, and the uncertainty as regards the future of innovation in urban transport, especially as regards emerging technologies and business models.
    Language English
    Publishing date 2022-10-18
    Publishing country Netherlands
    Document type Journal Article
    ISSN 0967-070X
    ISSN 0967-070X
    DOI 10.1016/j.tranpol.2022.10.007
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  5. Article: Active mobility versus motorized transport? User choices and benefits for the society

    Pisoni, E. / Christidis, P. / Navajas Cawood, E.

    Science of the total environment. 2022 Feb. 01, v. 806

    2022  

    Abstract: Measures promoting active mobility – walking or cycling – are often seen as an effective strategy to meet multiple urban objectives. The advantages of such behavioural changes cover multiple dimensions at public and individual level, including positive ... ...

    Abstract Measures promoting active mobility – walking or cycling – are often seen as an effective strategy to meet multiple urban objectives. The advantages of such behavioural changes cover multiple dimensions at public and individual level, including positive impacts on health, safety, climate, economy, environment and air quality. However, there is still a considerable potential for increasing the uptake of active mobility in urban areas. This paper explores the determinants of active mobility choice and compares the demographic, socio-economic and cultural factors that influence it. The methodology combines extensive survey data, an EU-wide transport model and detailed indicators of external costs of transport with a Gradient Boosting Machine Learning approach. The model based scenarios quantify the benefit in terms of external costs savings from increasing active mobility shares. Such savings – at EU level, can reach the amount of 15 billion euro per year for a shift of 10% of trips to active mobility modes.
    Keywords air quality ; climate ; environment ; models ; society ; socioeconomics ; surveys
    Language English
    Dates of publication 2022-0201
    Publishing place Elsevier B.V.
    Document type Article
    ZDB-ID 121506-1
    ISSN 1879-1026 ; 0048-9697
    ISSN (online) 1879-1026
    ISSN 0048-9697
    DOI 10.1016/j.scitotenv.2021.150627
    Database NAL-Catalogue (AGRICOLA)

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    In stock of ZB MED Bonn / Germany

    Z 74/341: Show issues

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  6. Article ; Online: The Predictive Capacity of Air Travel Patterns During the Global Spread of the COVID-19 Pandemic: Risk, Uncertainty and Randomness.

    Christidis, Panayotis / Christodoulou, Aris

    International journal of environmental research and public health

    2020  Volume 17, Issue 10

    Abstract: Air travel has a decisive role in the spread of infectious diseases at the global level. We present a methodology applied during the early stages of the COVID-19 pandemic that uses detailed aviation data at the final destination level in order to measure ...

    Abstract Air travel has a decisive role in the spread of infectious diseases at the global level. We present a methodology applied during the early stages of the COVID-19 pandemic that uses detailed aviation data at the final destination level in order to measure the risk of the disease spreading outside China. The approach proved to be successful in terms of identifying countries with a high risk of infected travellers and as a tool to monitor the evolution of the pandemic in different countries. The high number of undetected or asymptomatic cases of COVID-19, however, limits the capacity of the approach to model the full dynamics. As a result, the risk for countries with a low number of passengers from Hubei province appeared as low. Globalization and international aviation connectivity allow travel times that are much shorter than the incubation period of infectious diseases, a fact that raises the question of how to react in a potential new pandemic.
    MeSH term(s) Air Travel ; Aviation/statistics & numerical data ; Betacoronavirus ; COVID-19 ; Coronavirus ; Coronavirus Infections/epidemiology ; Coronavirus Infections/transmission ; Global Health ; Humans ; Pandemics ; Pneumonia, Viral/epidemiology ; Pneumonia, Viral/transmission ; Risk Assessment ; SARS-CoV-2 ; Spatial Analysis ; Uncertainty
    Keywords covid19
    Language English
    Publishing date 2020-05-12
    Publishing country Switzerland
    Document type Journal Article
    ZDB-ID 2175195-X
    ISSN 1660-4601 ; 1661-7827
    ISSN (online) 1660-4601
    ISSN 1661-7827
    DOI 10.3390/ijerph17103356
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  7. Article: SHERPA-city: A web application to assess the impact of traffic measures on NO

    Degraeuwe, B / Pisoni, E / Christidis, P / Christodoulou, A / Thunis, P

    Environmental modelling & software : with environment data news

    2020  Volume 135, Page(s) 104904

    Abstract: This paper presents SHERPA-City, a web application to assess the potential of traffic measures to abate ... ...

    Abstract This paper presents SHERPA-City, a web application to assess the potential of traffic measures to abate NO
    Language English
    Publishing date 2020-12-29
    Publishing country England
    Document type Journal Article
    ISSN 1364-8152
    ISSN 1364-8152
    DOI 10.1016/j.envsoft.2020.104904
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  8. Book ; Online: Modelling daily mobility using mobile data traffic at fine spatiotemporal scale

    Christidis, Panayotis / Gonzalo, Maria Vega / Radics, Miklos

    2023  

    Abstract: We applied a data-driven approach that explores the usability of the NetMob 2023 dataset in modelling mobility patterns within an urban context. We combined the data with a highly suitable external source, the ENACT dataset, which provides a 1 km x 1km ... ...

    Abstract We applied a data-driven approach that explores the usability of the NetMob 2023 dataset in modelling mobility patterns within an urban context. We combined the data with a highly suitable external source, the ENACT dataset, which provides a 1 km x 1km grid with estimates of the day and night population across Europe. We developed three sets of XGBoost models that predict the population in each 100m x 100m grid cell used in NetMob2023 based on the mobile data traffic of the 68 online services covered in the dataset, using the ENACT values as ground truth. The results suggest that the NetMob 2023 data can be useful for the estimation of the day and night population and grid cell level and can explain part of the dynamics of urban mobility.

    Comment: NetMob 2023 Conference
    Keywords Computer Science - Machine Learning ; Statistics - Machine Learning
    Publishing date 2023-11-16
    Publishing country us
    Document type Book ; Online
    Database BASE - Bielefeld Academic Search Engine (life sciences selection)

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  9. Article ; Online: Evaluating the impact of "Sustainable Urban Mobility Plans" on urban background air quality.

    Pisoni, E / Christidis, P / Thunis, P / Trombetti, M

    Journal of environmental management

    2018  Volume 231, Page(s) 249–255

    Abstract: Air quality in European cities is still a challenge, with various urban areas frequently exceeding the ... ...

    Abstract Air quality in European cities is still a challenge, with various urban areas frequently exceeding the PM
    MeSH term(s) Air Pollutants ; Air Pollution ; Cities ; Environmental Monitoring ; Europe ; Greenhouse Gases
    Chemical Substances Air Pollutants ; Greenhouse Gases
    Language English
    Publishing date 2018-10-24
    Publishing country England
    Document type Journal Article
    ZDB-ID 184882-3
    ISSN 1095-8630 ; 0301-4797
    ISSN (online) 1095-8630
    ISSN 0301-4797
    DOI 10.1016/j.jenvman.2018.10.039
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Bonn / Germany

    Z 7556: Show issues

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  10. Article ; Online: Microwave ablation of a solitary colorectal liver metastasis complicated by stomach perforation and gastrocutaneous fistula - a case report.

    Symeonidis, S / Giankoulof, C / Christidis, P / Anestiadou, E / Loutzidou, L / Bitsianis, S / Ioannidis, O / Tsalis, K / Angelopoulos, S / Petsatodis, E

    Klinicka onkologie : casopis Ceske a Slovenske onkologicke spolecnosti

    2022  Volume 35, Issue 4, Page(s) 323–327

    Abstract: Background: Organ perforation secondary to thermal ablation is a rare but severe complication that can occur in certain patients, in whom tissue dissection and preservation cannot be adequately achieved.: Case description: A 69-year-old man presented ...

    Title translation Mikrovlnná ablace solitární jaterní metastázy kolorektálního karcinomu komplikované perforací žaludku a gastrokutánní píštělí - kazuistika.
    Abstract Background: Organ perforation secondary to thermal ablation is a rare but severe complication that can occur in certain patients, in whom tissue dissection and preservation cannot be adequately achieved.
    Case description: A 69-year-old man presented with a gastrocutaneous fistula 20 days after a microwave ablation of liver metastases from colorectal cancer. Besides skin rash, local tenderness, and gastric content discharge from a wound where the probe had been placed, no other signs or symptoms were present. The patient was treated surgically, and a wedge-shaped gastric resection was performed. His postoperative course was uneventful. After 8 months, the patient underwent the same procedure for local progression of the same lesion, using a pulsed MW antenna and a dedicated hydrodissection needle, without complications.
    Conclusions: A gastrocutaneous fistula is a rare complication of microwave ablation. However, adequate hydrodissection can minimize the risk for the development of these complications. Proper treatment of these complications does not preclude repeated usage of microwave ablation in the future.
    MeSH term(s) Aged ; Colorectal Neoplasms/complications ; Colorectal Neoplasms/pathology ; Colorectal Neoplasms/surgery ; Gastric Fistula/etiology ; Gastric Fistula/surgery ; Humans ; Liver Neoplasms/therapy ; Male ; Microwaves/adverse effects ; Stomach/pathology ; Treatment Outcome
    Language English
    Publishing date 2022-06-23
    Publishing country Czech Republic
    Document type Case Reports ; Journal Article
    ZDB-ID 1217739-8
    ISSN 1802-5307 ; 0862-495X
    ISSN (online) 1802-5307
    ISSN 0862-495X
    DOI 10.48095/ccko2022323
    Database MEDical Literature Analysis and Retrieval System OnLINE

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    In stock of ZB MED Cologne/Königswinter

    Zs.A 4181: Show issues Location:
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