Background Obstructive sleep apnea (OSA) is associated with health complications, but its impact on COVID-19 outcomes not known. This study investigated the association between OSA and of hospitalized patients. Methods The Nationwide Inpatient Sample 2020 was searched for adults COVID-19. interest were in-hospital mortality, non-routine discharge, prolonged length stay (LOS), complications. Patients matched to those without in a 1:4 ratio using propensity score matching (PSM) according age,...

As the outcomes of rapid urbanization, spatial separation homes and workplaces extends commuting distance complicates demand residents. To promote urban livability sustainability, it becomes crucially important to understand patterns by decomposing simplifying diverse demand. In this paper, a methodology framework is proposed describe structure in city using mobile phone data. Four steps are mainly included methodology: preprocessing data, labeling individuals their activity points,...

The novel coronavirus (COVID-19) pandemic has had a significant impact on human mobility around the world. Many cities issued "stay-at-home" orders during outbreak of COVID-19, and many commuters have also changed their travel modes in post period; e.g., transit/bus passengers switched to driving or car-sharing. Urban road traffic congestion patterns are significantly different than they were pre-pandemic, understanding such changes can be an opportunity improve future emergency management...

With the widespread application of ship Automatic Identification System (AIS) in maritime operations, a large number trajectories become available. This study aims to improve safety ships navigating through densely trafficked areas and address challenge sufficient data exploration while fully describing traffic conditions these waters. To achieve this objective, flow information is extracted from AIS collected Zhoushan A combination multi-algorithms employed extract frame, specifically,...

The coronavirus disease 2019 (COVID-19) pandemic has provided an opportunity to rethink the development of a sustainable and resilient city. A framework for comprehensive intracity risk evaluation using mobile phone data is proposed in this study. Four steps were included framework: identification high-risk groups, calculation dynamic population flow construction human mobility network, exposure transmission assessment, prevention guidelines. First, groups extracted from based on multi-day...

Carsharing is a new alternative transport mode which good solution to balance travellers' requirements between private vehicles and public transit. Understanding carsharing use patterns benefits the planning design of better service. The criteria for behavior classification imprecise short data support. This paper introduced clustering method analyze based on rental provided by Chefenxiang in Hangzhou, China. A set descriptive variables were selected describe behaviors member travel...

As randomly occurring events, traffic accidents pose serious challenges to the collection of comprehensive data understand how travellers respond them and quantify their impacts. The advent mobile phones, with wide spatial/temporal coverage ubiquitous presence in metro areas, offers a new source conduct such studies. In this study, collision accident Metro Line 10 Shanghai, China on 27 September 2011 is carefully investigated based derived from anonymous phone records. evacuation process...

Employment is one of the essential socioeconomic connections in urban agglomeration. However, both demand and supply transjurisdictional public transport service are unevenly distributed such area. Customized bus has a high potential serving long-distance commuting demand. This study proposes network-based layout design method to generate hierarchical scopes stations for customized system. First, home workplace residents identified using mobile phone data, construct jobs-housing relationship...

Dockless bicycle-sharing is one of the novel transportation modes that emerged in recent years. As a component public transit system, it plays an important part connecting urban metro system but also generates some problems. With low parking turnover rate, oversupply bicycles will generate demand and occupy large amount land. To make dockless service more effective travel mode for necessary to implement policy zoning with different management strategies efficient land utilization system. In...

The traditional ship collision risk index model based on the distance at closest point of approach (DCPA) and time to (TCPA) is insufficient for estimating planning avoidance operations. This paper constructs an elliptical, dynamic domain that changes with speed maneuverability parameters overcome subjective human factors. Based constructed model, concept proximity factor introduced improve DCPA TCPA, a calculation function considers safety navigation constructed. numerical improved confirms...

Dockless bicycle-sharing (DLBS) is one of the novel transportation modes emerging in recent years. As a newly arisen mode, dockless inevitably has influence on existing components public system, especially metro system. A large number scholars have explored integration relationship between two. However, through evaluation and quantification data automatic fare collection data, we find that two not unique. Based location origin destination, travel duration, distance, trips closely related to...

Abstract In transportation, the trajectory data generated by various mobile vehicles equipped with GPS modules are essential for traffic information mining. However, collecting is susceptible to factors, resulting in lack and even error of data. Missing could not correctly reflect actual situation also affect subsequent research work related trajectory. Although increasing efforts paid restore missing data, it still faces many challenges: (1) difficulty restoration because trajectories...

Under the background of integration culture and tourism, elements intangible cultural heritage have been widely used in design tourism creative products, which makes products more characteristic regional culture. This not only broadens connotation promotes diversified development but also protection inheritance heritage. paper analyzes practical significance fusion traditional modern innovation from aspects innovative attributes application

This paper presents the framework and implementation of a flexible, loosely coupled information infrastructure to facilitate collaborative research on land use, transportation, environment (LUTE) modeling. The combines off-the-shelf open source applications such as Apache, PostgreSQL, MapServer, OpenSSL, MediaWiki, with proprietary tools ArcGIS Server Flex, uses minimal custom code provide web services for distributed modeling realistic evolution data, models, research. approach has been...

Purpose The study aims to map the intellectual structure of business ethics studies by analyzing 17,246 citations 225 papers published in Business Ethics Quarterly ( BEQ ) year between 2005 and 2014. Specifically, purpose is describe current state , identify most influential journals works, key themes during 2005-2014 and, at same time, report changes making a comparison two time periods – 2005-2009 2010-2014. Design/methodology/approach First, presents information authors, institutions...