920 research outputs found
Report on Underground Solutions for Urban Problems
No full textWorld wide, we see developing nations building new infrastructure as well as developed cities rehabilitating and expanding their infrastructure to meet the demands of increased population, energy efficiency, and environmental awareness of the public. Ten years ago ITA issued its special edition of the Tribune entitled “Why Go Underground, Contribution of the use of Underground space to Sustainable Development.” Working Group N° 20 of the ITA, focused on Urban Problems and Underground Solutions, has continued examining the use of underground space in the urban environment as it evolves with expanding cities and urban densification. This report present examples of the uses of underground space in cities, trends in Metro and roadway planning, and gives an overview of aspects to be considered during the decision making process, in order to optimally include underground solutions.Geoscience & EngineeringCivil Engineering and Geoscience
Profile of cases accessing gambling treatment in Ireland using national treatment surveillance data 2008 to 2019.
No full textDetachable Steerable Clip Applier for Dissection of ITA Branches
No full textThe internal thoracic artery (ITA) is increasingly being recognized as the best conduit for replacement of diseased coronary arteries. As the ITA is the main blood supply for the sternum, harvesting this artery causes a drop in blood flow, increasing the risk of failing to heal, and risking deep sternal wound infection. Current methods of harvesting the ITA are time consuming, and due to hidden arteries the manoeuvrability of the surgeon is limited. In this project the goal is to develop a new instrument for branch sealing and dissection, that increases the maneuverability, minimizes damage to surrounding tissue while beingmore time efficient. A systematical selection process resulted in the solutions for some of the sub-functions, whereas two subfunctions required more thorough analysis and evaluation. Concept selection for the sub-function Tip-Articulation a more in-depth analysis and experimental evaluation (n=19). The selection of the sub-function Handle-Mechanism is done by analysis of proven concepts, choices are based on the requirements that resulted from consultation with an experienced surgeon from LUMC, literature study, and supervision of experienced medical instrument engineers. A preliminary headroom analysis is done, resulting in an estimated drop of 64.45%for the duration of sealing and dissecting of branches with a relatively bigger diameter. Further research should specifically be aimed on the further development of the chosen concepts
Gambling in Ireland: profile of treatment episodes from a national treatment reporting system.
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