Search results for "Augment"

Strain localization and fracture in isotropic damaging materials: a novel augmented-finite element strategy

2022

A VR/AR Environment for Multi-User Liver Anatomy Education

2021

We present a Virtual and Augmented Reality multi-user prototype of a learning environment for liver anatomy education. Our system supports various training scenarios ranging from small learning groups to classroom-size education, where students and teachers can participate in virtual reality, augmented reality, or via desktop PCs. In an iterative development process with surgeons and teachers, a virtual organ library was created. Nineteen liver data sets were used comprising 3D surface models, 2D image data, pathology information, diagnosis and treatment decisions. These data sets can interactively be sorted and investigated individually regarding their volumetric and meta information. The …

In vitro and in vivo characterization of porcine acellular dermal matrix for gingival augmentation procedures

2013

Recently, porcine acellular dermal matrix (PADM) has been proposed as a possible alternative to autogenous grafts in periodontal plastic surgery. The aim of the present study was to investigate the in vitro responses of four different oral cell lines cultured on a novel PADM. Furthermore, tissue reaction to PADM was evaluated histologically after subcutaneous implantation in mice.Human gingival fibroblasts (HGF), human osteoblast-like cells, human umbilical vein endothelial cells and human oral keratinocytes (HOK) were cultured and transferred on to the PADM. A tissue culture polystyrene surface served as the control. The viability of all tested cell lines on PADM was measured by using the …

Stakeholder Strategy and Design Alignment Framework for Design Science Research – A Study in the Context of VR-Aided Marketing and Sales

2020

This study introduces a framework to align various perceptions and objectives that different stakeholders have at the beginning of a Design Science Research (DSR) process and consolidate them into stakeholders’ strategies and theory-ingrained design artifacts. We coin this framework as Stakeholder Strategy and Design Alignment (SSDA). As an application area, we concentrate on a Virtual Reality (VR) application designed for marketing and sales purposes. The empirical testing of the framework shows that the marketing and sales potential of the application are, indeed, perceived very differently among three stakeholder groups: company representatives, developers and customers. In addition to t…

Augmented Reality Applications in the Transition Towards the Sustainable Organization

2016

Business companies are increasingly aware that the world where they operate in is facing increasing environmental, economic and social challenges, thus there is a trend in most companies to align their processes and services with a sustainability agenda. Customers, shareholders, financial partners, governmental agencies, NGOs, globalization and internationalization of environmental and social standards exert new pressures on them to do so. Industry is widely recognized as being essential for wealth creation and development, although it is at times considered a source of environmental degradation and social concerns. Thus, industry must play an important role for the transition towards the s…

AR METHODS FOR THE VISUALIZATION OF THE LOST MARBLE “TRIBUNA” IN THE MAIN APSE OF THE CATHEDRAL OF PALERMO

2022

Abstract. In recent years research works have shown that augmented reality tools can offer effective support for the dissemination of architectural heritage, when integrated into the information data extracted with surveying and representation tools and further data from other sources, e.g., history.The development and permanent updating of software platforms dedicated to augmented reality, i.e., Apple's ARKit and Google's ARCore, as well as the introduction of new features, offer today affordable support for the development of AR solutions.Some operational difficulties are due to the rapid and constant evolution of the technologies; the available solutions can be compared to prototypes and…

Virtual and Augmented Reality in Liver Surgery.

2019

MIME: A Mixed-Space Collaborative System with Three Immersion Levels and Multiple Users

2018

Shared spaces for remote collaboration are nowadays possible by considering a variety of users, devices, immersion systems, interaction capabilities, navigation paradigms, etc. There is a substantial amount of research done in this line, proposing different solutions. However, still a more general solution that considers the heterogeneity of the involved actors/items is lacking. In this paper, we present MIME, a mixed-space tri-collaborative system. Differently from other mixed-space systems, MIME considers three different types of users (in different locations) according to the level of immersion in the system, who can interact simultaneously – what we call a tri-collaboration. For the thr…

Session 2: Are we ready for primary chemotherapy in rectal cancer: who, when, why?

2018

The potential of preoperative chemotherapy in rectal cancer is the subject of investigation in a number of global randomized trials. In this overview and expert discussion, Professor Cervantes summarizes the findings of numerous Phase II trials testing neoadjuvant chemotherapy. The crucial points in the next phase of trials include: patient selection, whether radiotherapy can be omitted altogether and whether chemotherapy can be used to augment the initial response to chemoradiotherapy. Finally, with the emergence of Magnetic Resonance Tumour Regression Grade a reliable method for assessing response after initial chemoradiotherapy, we ask if this can be used to drive the use of further sele…

Membrane-Derived Phospholipids Control Synaptic Neurotransmission and Plasticity

2015

Synaptic communication is a dynamic process that is key to the regulation of neuronal excitability and information processing in the brain. To date, however, the molecular signals controlling synaptic dynamics have been poorly understood. Membrane-derived bioactive phospholipids are potential candidates to control short-term tuning of synaptic signaling, a plastic event essential for information processing at both the cellular and neuronal network levels in the brain. Here, we showed that phospholipids affect excitatory and inhibitory neurotransmission by different degrees, loci, and mechanisms of action. Signaling triggered by lysophosphatidic acid (LPA) evoked rapid and reversible depress…