background: connective tissue attachment following periodontal regenerative surgery is directly related to the attachment of fibrin clot on to the root surface during early wound healing events. the adhesion of fibrin clot to the root surface affected by periodontal disease depends on the biologic acceptance of the root surface which can be accomplished by various root conditioning procedures d...

Objective: Since open surgical evacuation of basal ganglia hemorrhage (BGH) as had been proved did not lead to the desired benefit for the patients, we used minimally invasive clot lysis by injection of recombinant tissue-type plasminogen activator (rtPA). Methods: Patients with spontaneous BGH with or without accompanied intraventricular hemorrhage were included in the study. Following diagnos...

Crowd evacuation simulations are useful tools for analyzing and assessing the safety of building occupants. Agent-based simulations provide a platform for computing individual as well as and collective behaviors in crowds. During an evacuation, it is well known that trained leaders or evacuation guides play a key role in saving human lives. In this paper, we propose an evacuation simulation sys...

In order to evacuate smoothly and safely at a large earthquake, it is important to obtain the information on property damages (such as street-blockage and fire) and on evacuation areas by hearsay, guidance and bulletin boards. In this paper, we construct a model, which describes wide-area evacuation, information-hearsay among evacuees and guidance behavior. Using this model, we evaluate the inf...

A novel approach is proposed in this paper for personnel and vehicle iterative evacuation optimization to tackle crowd evacuation problem in emergency. The paper analyzes the mechanism to coordinate people flow evacuation with traffic stream evacuation, and explores optimization model from a personnel and vehicle coordination evacuation perspective. The evacuation is classified as two categorie...

One of the necessary measures of saving human life in emergency situations, such as fires, is the safe and swift evacuation of people. The prerequisites for this are to anticipate, identify, and eliminate factors preventing people from leaving buildings in a timely and safe manner while moving them to a safe place [1]. The occurrence of errors caused by engineering, design, human, and psycholog...

Evacuation has the potential to save lives, but could be costly in time, money, and credibility. Evacuation is a possible measure in case of a threat for flooding. Different types of evacuation can be distinguished as preventive evacuation, vertical evacuation to safe havens or shelters or shelter in place. The consequences in terms of loss of life depends on the required time related to the ty...

Evacuation models can be used to determine evacuation capacity, by estimating the time required for evacuating populations to leave areas exposed to a hazard. Disaster management practices and evacuation modeling are generally carried out to prepare for ‘worst-case’ conditions. However, hazard severity is highly variable. Performing evacuation modeling for multiple hazard scenarios may provide ...

Wildfire evacuation trigger points are agreed-upon prominent geographic features (e.g., ridges, rivers, and roads) used in wildfire evacuation practices, and when a fire crosses these features, an evacuation is recommended for the communities or firefighter crew in the path of the fire (Cook, 2003; Cova et al., 2005). Spatial modeling of wildfire evacuation triggers has used fire-spread modelin...