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Ein neues Konzept zur automatisierten Bewertung von Fertigkeiten in der minimal invasiven Chirurgie für Virtual Reality Simulatoren in Grid-Umgebungen

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Book Series: Schriftenreihe des Instituts für Angewandte Informatik - Automatisierungstechnik, Karlsruher Institut für Technologie ISSN: 16145267 ISBN: 9783866446779 Year: Volume: 38 Pages: XV, 188 p. DOI: 10.5445/KSP/1000023053 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Technology (General)
Added to DOAB on : 2019-07-30 20:01:59
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Die minimal invasive Chirurgie stellt besondere Anforderungen an die Chirurgen. Deshalb ist ein Simulator-Training wichtig. Für ein effektives Training ist eine automatisierte Beurteilung wesentlich. Deshalb wird hier ein neues, umfassendes Konzept für die automatisierte Bewertung von Fertigkeiten in der minimal invasiven Chirurgie für Virtual Reality Simulatoren vorgestellt. Dabei wird das Bewertungssystem für eine zeitnahe Beurteilung in einer Grid-Umgebung implementiert.

Biological Invasions in Changing Ecosystems. Vectors, Ecological Impacts, Management and Predictions

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ISBN: 9783110438659 9783110438666 Year: Pages: 488 DOI: 10.1515/9783110438666 Language: English
Publisher: De Gruyter
Subject: Biology --- Ecology
Added to DOAB on : 2016-01-06 17:16:03
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When organisms are deliberately or accidentally introduced into a new ecosystem a biological invasion may take place. These so-called ‘invasive species’ may establish, spread and ecologically alter the invaded community. Biological invasions by animals, plants, pathogens or vectors are one of the greatest environmental and economic threats and, along with habitat destruction, a leading cause of global biodiversity loss.In this book, more than 50 worldwide invasion scientists cover our current understanding of biological invasions, its impacts, patterns and mechanisms in both aquatic and terrestrial systems.

Non-invasive Brain Stimulation in Neurology and Psychiatry

Authors: --- ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889451340 Year: Pages: 207 DOI: 10.3389/978-2-88945-134-0 Language: English
Publisher: Frontiers Media SA
Subject: Neurology --- Science (General)
Added to DOAB on : 2017-07-06 13:27:36
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Brain stimulation techniques, transcranial magnetic stimulation (TMS) and transcranial direct current stimulation (TDCS), modify brain function through interaction with multiple neurotransmitters and networks. The implementation of these non-invasive stimulation techniques in physiology, behavioral studies, with modelling or functional imaging has provided an outstanding causal link between brain structure and function and helped identify neural networks mediating cognitive or motor function. The potential efficacy of non-invasive brain stimulation procedures for the management of specific symptoms in diverse neurological and psychiatric conditions has been tested in the past decade or so. For example, repetitive TMS over prefrontal areas has been extensively investigated as a treatment for patients with medication-resistant depression and has been shown to be associated with improvement of mood. Similarly, non-invasive stimulation techniques have been applied to various symptoms of Parkinson’s disease such as bradykinesia and dyskinesias, with variables degrees of success reported. However, attempts to expand previously observed clinical improvements to other neurological disorders (e.g. Tourette’s syndrome, autism, epilepsy) has been controversial. In trying to bypass potential confounding elements, researchers aim to target neural populations altered in disease to either increase or decrease their corrupted baseline activity. In addition, a complementary approach is to extend stimulation protocols that results enhanced behavior in healthy participants. One of the potential limitation of this latter strategy has been that most of the protocols evaluated in healthy participants have been tested in populations that are not comparable to the patient populations. This Frontiers Research Topic on non-invasive brain stimulation and enhancement of function seeks to combine contributions from researchers who found non-invasive brain stimulation induced improvement of either a motoric, cognitive or behavioral nature investigated behaviorally, physiologically or using brain imaging techniques in clinical populations. Investigation of the relation between enhancement of function in healthy populations and improvement of symptoms in patients with neurological or psychiatric disorders needs further consideration. Critically, the topic will be centered on the following topics to expand current knowledge: • selection of adequate stimulation protocols, including simple questions such as whether TMS or TDCS is more efficacious for inducing enhancement of function in brain disease; • methodological issues such as optimizing cortical targets and the use of good control groups; • which symptoms to tackle in different brain disorders. For example, is it possible to de-activate hyperactive cortical regions present in Parkinson disease to induce clinical amelioration? Do protocols used in healthy populations produce similar predictable effects in parkinsonian persons?; • potential of using stimulation protocols in combination with pharmacological or cognitive therapy; • the use of appropriate clinical, behavioral, physiological and imaging tools to measure brain plastic changes. Consideration about possible multi-centre clinical trials: feasibility, problems and authorization pathways. Studies or reviews on cost-effectiveness. The aim of this topic is to determine which disease signs are treatable with non-invasive brain stimulation and available protocols to interfere with altered brain systems and produce enhanced motor and behavior outcomes. This Frontiers Research Topic will be important in identifying new avenues of clinical research for rapid advances in the field.

A Contribution to Resource-Aware Architectures for Humanoid Robots

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Book Series: Karlsruhe Series on Humanoid Robotics ISSN: 25120875 ISBN: 9783731506324 Year: Volume: 1 Pages: XIII, 193 p. DOI: 10.5445/KSP/1000065884 Language: ENGLISH
Publisher: KIT Scientific Publishing
Subject: Computer Science
Added to DOAB on : 2019-07-30 20:01:59
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The goal of this work is to provide building blocks for resource-aware robot architectures. The topic of these blocks are data-driven generation of context-sensitive resource models, prediction of future resource utilizations, and resource-aware computer vision and motion planning algorithms. The implementation of these algorithms is based on resource-aware concepts and methodologies originating from the Transregional Collaborative Research Center ""Invasive Computing"" (SFB/TR 89).

Intraoperative Modellierung und Registrierung für ein laparoskopisches Assistenzsystem

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ISBN: 9783731501046 Year: Pages: X, 258 p. DOI: 10.5445/KSP/1000036443 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Computer Science
Added to DOAB on : 2019-07-30 20:02:02
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This book presents methods to build an intra-operative model using images of a stereo endoscope and force data. The idea is to use this model in a computer-based assistance system for laparoscopic surgery. One focus is on a method for intra-operative surface reconstruction. Furthermore, methods for intraoperative registration of pre-and intraoperative models are presented.

Parameteranalyse eines redundanten Roboters mit Pivotpunkt-Restriktion

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ISBN: 9783731507048 Year: Pages: IX, 164 p. DOI: 10.5445/KSP/1000072643 Language: GERMAN
Publisher: KIT Scientific Publishing
Subject: Computer Science
Added to DOAB on : 2019-07-30 20:01:59
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Nowadays robots are used not only in production lines, but also in the field of medicine. In this thesis an analysis was performed which relates to a serial, redundant robot and its parameters. The pivot point restriction results from the minimally invasive surgical scenario. The parameter analysis evaluates the robot performance by indicators, which depend on the selected parameters and the operating area.

Advances in Aspergillus fumigatus pathobiology

Authors: --- ---
Book Series: Frontiers Research Topics ISSN: 16648714 ISBN: 9782889197897 Year: Pages: 109 DOI: 10.3389/978-2-88919-789-7 Language: English
Publisher: Frontiers Media SA
Subject: Microbiology --- Science (General)
Added to DOAB on : 2016-04-07 11:22:02
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Aspergillus fumigatus is a human fungal pathogen that causes invasive aspergillosis (IA), a major infectious cause of death in the expanding population of immunocompromised individuals such as cancer patients and transplant recipients. The mortality of IA remains high (30-70%) and emerging resistance to triazoles, the first-line antifungal drug class, is of particular concern. Second-line therapies for IA are limited by their toxicity (polyenes) or their lack of fungicidal activity (echinocandins). Identification of novel antifungal targets is an urgent need for improving the outcome of IA. A. fumigatus is a filamentous fungus exhibiting a complex developmental cycle and elaborated mechanisms of adaptation to allow the initiation and progression of infection in the human host. The fungal cell wall, with its unique and dynamic structure, is crucial for protecting cell integrity and evading the host immune system, also contributing to biofilm formation and virulence, and thus representing an ideal antifungal target. The emergence of azole resistance implies various and complex mechanisms that need to be further elucidated. Other important processes, such as biosynthetic pathways and toxin/metabolite production are important for fungal survival and propagation in the host environment, ultimately leading to disease. Moreover, the host immune response is a determinant factor in influencing the course of infection. The objective of this topic issue is to provide an overview of the recent advances in our understanding of A. fumigatus pathobiology and of IA pathogenesis to outline future research.

Cognitive Supervision for Robot-Assisted Minimally Invasive Laser Surgery

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Book Series: Springer Theses ISSN: 2190-5053 ISBN: 9783319303291 9783319303307 Year: Pages: 99 DOI: 10.1007/978-3-319-30330-7 Language: English
Publisher: Springer
Subject: Medicine (General)
Added to DOAB on : 2016-12-20 12:03:50
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This thesis lays the groundwork for the automatic supervision of the laser incision process, which aims to complement surgeons’ perception of the state of tissues and enhance their control over laser incisions. The research problem is formulated as the estimation of variables that are representative of the state of tissues during laser cutting. Prior research in this area leveraged numerical computation methods that bear a high computational cost and are not straightforward to use in a surgical setting. This book proposes a novel solution to this problem, using models inspired by the ability of experienced surgeons to perform precise and clean laser cutting. It shows that these new models, which were extracted from experimental data using statistical learning techniques, are straightforward to use in a surgical setup, allowing greater precision in laser-based surgical procedures.

What Works in Conservation: 2017

Authors: --- --- ---
Book Series: What Works in Conservation ISBN: 9781783743100 Year: Pages: 442 DOI: 10.11647/OBP.0109 Language: English
Publisher: Open Book Publishers
Subject: Agriculture (General)
Added to DOAB on : 2017-08-22 11:01:43
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"Is leaving headlands in fields unsprayed beneficial for wildlife? Is paying farmers to cover the costs of bird conservation measures effective?&#xD;Is using prescribed fire beneficial for young trees in forests?&#xD;Does translocating frogs benefit wild populations?&#xD;Is providing artificial roost structures for bats beneficial?&#xD;What Works in Conservation has been created to provide practitioners with answers to these and many other questions about practical conservation. This book provides an assessment of the effectiveness of 763 conservation interventions based on summarized scientific evidence. Chapters cover the practical global conservation of amphibians, bats, birds and forests, conservation of European farmland biodiversity and some aspects of enhancing natural pest control, enhancing soil fertility and control of freshwater invasive species. It contains key results from the summarized evidence for each conservation intervention and an assessment of the effectiveness of each by international expert panels. The accompanying website www.conservationevidence.com describes each of the studies individually, and provides full references.&#xD;This is the second edition of What Works in Conservation, which is revised on an annual basis. It will also available online as a free-to-download PDF at www.conservationevidence.com"

What Works in Conservation 2018

Authors: --- --- --- --- et al.
Book Series: What Works in Conservation ISSN: 20594232 20594240 ISBN: 9781783744282 9781783744305 Year: Volume: 1 Pages: 660 DOI: https://doi.org/10.11647/OBP.0131 Language: English
Publisher: Open Book Publishers
Subject: Environmental Sciences
Added to DOAB on : 2018-05-17 14:12:22
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What Works in Conservation has been created to provide practitioners with answers to these and many other questions about practical conservation. This book provides an assessment of the effectiveness of 1277 conservation interventions based on summarized scientific evidence. The 2018 edition contains new chapters covering practical global conservation of primates, peatlands, shrublands and heathlands, management of captive animals as well as an extended chapter on control of freshwater invasive species. Other chapters cover the global conservation of amphibians, bats, birds and forests, conservation of European farmland biodiversity and some aspects of enhancing natural pest control, enhancing soil fertility and control of freshwater invasive species. It contains key results from the summarized evidence for each conservation intervention and an assessment of the effectiveness of each by international expert panels. The accompanying website www.conservationevidence.com describes each of the studies individually, and provides full references.

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