Search results for "Mobility"

15 Minute City Concept and Palermo Case Study

Sustainable urban mobility models and decarbonization in transportation have been discussed globally for decades. Yet the problem is not just decarbonization and the solution is not limited to green technology alone. Particularly, Covid-19 brought to light other important and ingrained problems of cities such as inequality of accessibility, the marginalization of some urban, peri-urban, rural territories and the emergence of social exclusion. In order to find a way out from these problems, practical, easily accessible, comfortable, and cheap alternatives should be provided to citizens and the use of private vehicles should be minimized. However, no matter how many alternative transportation…

15 Minute City Concept. A Glance at the Palermo Case Study

2022

Giving people opportunities for green technology and offering them new transportation modes are not sufficient methods for the transition to a sustainable mobility model. With the increasing importance of time, minimizing the daily travel time of people seems to be one of the crucial steps to be taken. 15 Minute City is one of the latest popular concepts assuring to reduce daily travel time and improve quality of life while enhancing environmental conditions. This paper will have a look at the concept regarding the case study of Palermo, one of the cities with the most intense traffic problems in Europe.

Pedagoginen asiantuntijuus liikkeessä ja muutoksessa : huomisen haasteita

2014

Specifications and validation of the ACMG/AMP criteria for clinical interpretation of sequence variants in collagen genes associated with joint hyper…

2023

Deleterious variants in collagen genes are the most common cause of hereditary connective tissue disorders (HCTD). Adaptations of the American College of Medical Genetics and Genomics/Association for Molecular Pathology (ACMG/AMP) criteria are still lacking. A multidisciplinary team was set up for developing specifications of the ACMG/AMP criteria for COL1A1, COL1A2, COL2A1, COL3A1, COL5A1, COL5A2, COL11A1, COL11A2 and COL12A1, associated with various forms of HCTD featuring joint hypermobility, which is becoming one of the most common reasons of referral for molecular testing in this field. Such specifications were validated against 209 variants, and resulted effective for classifying as p…

Audiovisual time-to-collision estimation for accelerating vehicles: The acoustic signature of electric vehicles impairs pedestrians' judgments

2022

To avoid collisions, pedestrians intending to cross a road need to accurately estimate the time-to-collision (TTC) of an approaching vehicle. For TTC estimation, auditory information can be considered particularly relevant when the approaching vehicle accelerates. The sound of vehicles with internal combustion engine (ICEVs) provides characteristic auditory information about the acceleration state (increasing speed and engine load). However, for electric vehicles (EVs), the acoustic signature during acceleration is less salient. Although the auditory detection of EVs has been studied extensively, there is no research on potential effects of the altered acoustic signature of EVs on TTC estim…

Proportional and Preemption-Enabled Traffic Offloading for IP Flow Mobility: Algorithms and Performance Evaluation

2018

IP Flow Mobility (IFOM) enables a user equipment to offload data traffic at the IP flow level. Although the procedure of IFOM-based flow offloading has been specified by 3GPP, how many IP flows should be offloaded and when offloading should be performed are not defined. Consequently, IP flows may be routed to a target access network which has a strong signal strength but with backhaul congestion or insufficient access capability. In this paper, we propose two algorithms, referred to as proportional offloading (PO), and proportional and preemption-enabled offloading (PPO), respectively, for IP flow offloading in hybrid cellular and wireless local area networks. The PO algorithm decides an op…

Proxy Mobile IPv6-Based Seamless Handover

2013

A prospective next generation wireless network is expected to integrate harmoniously into an IP-based core network. It is widely anticipated that IP-layer handover is a feasible solution to global mobility. However, the performance of IP-layer handover based on basic Mobile IP (MIP) cannot support real time services very well due to long handover delay. The Internet Engineering Task Force (IETF) Network-based Localized Mobility Management (NETLMM) working group developed a network-based localized mobility management protocol called Proxy Mobile IPv6 (PMIPv6) to reduce the handoff latency of MIPv6. Moreover, PMIPv6 provides the IP with the mobility to support User Equipments (UEs) without it…

Cultural and Landscapes Heritages: Mobility, Fruition and Accessibility for all

2021

At such a delicate historical moment, in which the pandemic health emergency has reduced the mobility of citizens, a new resilient culture is affirming its capacity to encourage and guarantee the use of cultural and landscape assets for all. This study analyzes some international and national experiences that have already been implemented, or are at an advanced planning stage, which point to a new way of understanding the accessibility of places by users with specific needs and permits their visitation which was previously impossible. Our discussion will deal with Agrigento in particular: the city itself, the Valley of the Temples, its historical center and all the naturalistic treasures of…

Trap-limited mobility in space-charge limited current in organic layers

2009

Space-charge limited current transport in organic devices, relevant to the operation of a range of organic optoelectronic devices, is analyzed in the frequency domain. The classical multiple trapping picture with one transport state and one trap level is used as the basis for the descriptions. By varying the energetic and kinetic properties of the traps, we show that the admittance and the capacitance spectra are considerably modified depending on the interplay between the trap-limited mobility and the trap kinetics. We point out that capacitance steps at low-frequency, usually found in experiments, are observed only for slow traps. © 2008 Elsevier B.V. All rights reserved.

Ultra-Performance Liquid Chromatography-Ion Mobility Separation-Quadruple Time-of-Flight MS (UHPLC-IMS-QTOF MS) Metabolomics for Short-Term Biomarker…

2020

A major problem with dietary assessments is their subjective nature. Untargeted metabolomics and new technologies can shed light on this issue and provide a more complete picture of dietary intake by measuring the profile of metabolites in biological samples. Oranges are one of the most consumed fruits in the world, and therefore one of the most studied for their properties. The aim of this work was the application of untargeted metabolomics approach with the novel combination of ion mobility separation coupled to high resolution mass spectrometry (IMS-HRMS) and study the advantages that this technique can bring to the area of dietary biomarker discovery, with the specific case of biomarker…