Public transit systems are ideal for studying the urban microbiome and interindividual community transfer. In this study, we used 16S amplicon and shotgun metagenomic sequencing to profile microbial communities on multiple transit surfaces across train lines and stations in the Boston metropolitan transit system. The greatest determinant of microbial community structure was the transit surface ...

The aim was to investigate the action of serotonin (5HT) on function of the ileocolonic junction (ICJ) in vivo. In anaesthetised rats, models were developed to study the effects of intra-aortic (ia) serotonin on ileocolonic and colonic transit, and the effects on transit of a number of 5HT receptor antagonists. In the first series of experiments, a bolus of saline labelled with 99mTc DTPA was i...

BACKGROUND Various nutrients are known to alter small intestinal motility patterns although their effect on transit of fluids and solids in man is not clear. AIMS To determine small intestinal transit of solids and liquids during perfusion with lipids, protein, and non-energy solutions. METHODS Twenty eight healthy volunteers received a jejunal infusion (1 ml/minute for 30 minutes) of one o...

Attracting people to public transit in urban areas has proven to be a difficult task indeed. Recent research on the transportation–land use connection has suggested that transit use can be increased through transit-friendly land use planning. While significant evidence exists that a relationship between land use and transit is apparent, the exact nature of the relationship remains ambiguous. De...

The Toc core complex consists of the pore-forming Toc75 and the GTPases Toc159 and Toc34. We confirm that the receptor form of Toc159 is integrated into the membrane. The association of Toc34 to Toc75/Toc159 is GTP dependent and enhanced by preprotein interaction. The N-terminal half of the pSSU transit peptide interacts with high affinity with Toc159, whereas the C-terminal part stimulates its...

Research on demand-responsive collective transportation facilities that can act as feeder services to time-table based public transportation (PT) requires detailed and accurate information about the PT infrastructure, including the attachment of bus stops to the appropriate network link. Due to the size of the infrastructure, the data integration shall be automated. This paper describes the eff...

In recent years, Pulse Transit Time (PTT) based non-invasive continuous blood pressure monitoring systems have been investigated extensively. But the most relevant studies did not pay attention to the safety requirement of the system. In this paper a method is proposed to model the safety-related system for continuous noninvasive blood pressure monitoring. The hardware, software and communicati...

Bus rapid transit (BRT) is a flexible, high performance rapid transit mode that combines facilities, equipment, service and intelligent transportation system (ITS) elements into a permanently integrated system with a quality image and unique identity. Vehicles are an extremely important component of BRT systems, because they not only contribute significantly to BRT’s image and identity, but als...

Cost-effective public transit options suitable for serving all demand levels include: bus service in mixed traffic, bus service in reserved lane, transitway/buswdy, light rail transit (LRT) (segregated right of way), intermediate capacity advanced light rail transit (ALRT), and heavy rail rapid transit. This classification of transit options takes into account right-of-way access (that is, mixe...

A green transportation system composed of transit, busses and bicycles could be a significant in alleviating traffic congestion. However, the inaccuracy of current transit ridership forecasting methods is imposing a negative impact on the development of urban transit systems. Traffic Analysis Zone (TAZ) delineating is a fundamental and essential step in ridership forecasting, existing delineati...