Water inflows in nine tunnels and galleries through the Alpine crystalline massifs have been analysed for their 3H (titrium) activities and  18 O contents. Tritium provides information on water transit times and the dynamics of deep water circulation, whereas  18 O contributes to understanding the origin and flow paths of water in such mountainous regions. Owing to ambiguities arising from th...

introduction: treatment in chronic constipation is highly dependent on colon transit time (ctt), which not only determines the cause but also determines the correct treatment policy. the aim of this study was evaluation of ctt in constipated patients. methods: 43 patients with chronic constipation who did not respond to high fiber diet were enrolled in the study. patients with history of drug i...

morphine was used as a remedy for the control of diarrhea centuries before it's sedative-analgesic effect was discovered. although several mechanisms have been proposed for the morphine-induced inhibition of gastrointestinal transit (oit), the exact mechanism has not yet been identified. on this basis the possible involvement of the dopaminergic system in morphine-induced inhibition of tra...

The Astrakhan region is a significant geopolitical and geocultural zone. It major transport transit hub. A special economic zone (SEZ) known as territory the state has granted legal status benefits to. However, lack of efficient logistics makes efforts residents futile. necessary to strategically manage supply chains with access international organizational interaction, both for individual part...

Objective- In this study, the general anatomical features of the digestive tube and the transit time of the digestive tube of the Zarudni’s spur-thighed tortoises were examined by contrast radiology. Design - Experimental study. Animals - 4 adult female Zarudni’s Spur-thighed Tortoises (Testudo graeca zarudnyi). Procedures- At a temperature of 25-27°c a set of dorsoventral rad...

We examined the storage dynamics and isotopic composition of soil water over 12 months in three hydropedological units in order to understand runoff generation in a montane catchment. The units form classic catena sequences from freely draining podzols on steep upper hillslopes through peaty gleys in shallower lower slopes to deeper peats in the riparian zone. The peaty gleys and peats remained...

This paper focuses on the railway rolling stock circulation problem in rapid transit networks, in which frequencies are high and distances are relatively short. Although the distances are not very large, service times are high due to the large number of intermediate stops required to allow proper passenger flow. The main complicating issue is the fact that the available capacity at depot statio...