Between January and March 2022, crew aboard the International Space Station (ISS) performed the first archaeological fieldwork in space, the Sampling Quadrangle Assemblages Research Experiment (SQuARE). The experiment aimed to: (1) develop a new understanding of how humans adapt to life in an environmental context for which we are not evolutionarily adapted, using evidence from the observation of material culture; (2) identify disjunctions between planned and actual usage of facilities on a space station; (3) develop and test techniques that enable archaeological research at a distance; and (4) demonstrate the relevance of social science methods and perspectives for improving life in space. In this article, we describe our methodology, which involves a creative re-imagining of a long-standing sampling practice for the characterization of a site, the shovel test pit.
View Article and Find Full Text PDFBackground And Aim: Image registration and alignment are the main limitations of augmented reality (AR)-based knee replacement surgery. This research aims to decrease the registration error, eliminate outcomes that are trapped in local minima to improve the alignment problems, handle the occlusion and maximize the overlapping parts.
Methodology: Markerless image registration method was used for AR-based knee replacement surgery to guide and visualize the surgical operation.
Background And Aim: Image registration and alignment are the main limitations of augmented reality-based knee replacement surgery. This research aims to decrease the registration error, eliminate outcomes that are trapped in local minima to improve the alignment problems, handle the occlusion and maximize the overlapping parts.
Methodology: markerless image registration method was used for Augmented reality-based knee replacement surgery to guide and visualize the surgical operation.
Stroke represents a major health problem in our society. One of the effects of stroke is foot drop. Foot drop (FD) is a weakness that occurs in specific muscles in the ankle and foot such as the anterior tibialis, gastrocnemius, plantaris and soleus muscles.
View Article and Find Full Text PDFComplications of ventriculoperitoneal (VP) shunts have been well described in the literature. To our knowledge, only two cases with splenic tear have been reported to date. We report here a case of splenic haematoma and rupture caused by the distal catheter looping around the spleen, requiring urgent splenectomy for spontaneous rupture and massive haemorrhage.
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