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1.
Sensors (Basel) ; 23(7)2023 Mar 31.
Article in English | MEDLINE | ID: mdl-37050732

ABSTRACT

While developing traffic-based cognitive enhancement technology (CET), such as bike accident prevention systems, it can be challenging to test and evaluate them properly. After all, the real-world scenario could endanger the subjects' health and safety. Therefore, a simulator is needed, preferably one that is realistic yet low cost. This paper introduces a way to use the video game Grand Theft Auto V (GTA V) and its sophisticated traffic system as a base to create such a simulator, allowing for the safe and realistic testing of dangerous traffic situations involving cyclists, cars, and trucks. The open world of GTA V, which can be explored on foot and via various vehicles, serves as an immersive stand-in for the real world. Custom modification scripts of the game give the researchers control over the experiment scenario and the output data to be evaluated. An off-the-shelf bicycle equipped with three sensors serves as a realistic input device for the subject's movement direction and speed. The simulator was used to test two early-stage CET concepts enabling cyclists to sense dangerous traffic situations, such as trucks approaching from behind the cyclist. Thus, this paper also presents the user evaluation of the cycling simulator and the CET used by the subjects to sense dangerous traffic situations. With the knowledge of the first iteration of the user-centered design (UCD) process, this paper concludes by naming improvements for the cycling simulator and discussing further research directions for CET that enable users to sense dangerous situations better.


Subject(s)
Accidents, Traffic , Automobile Driving , Humans , Accidents, Traffic/prevention & control , Bicycling/psychology , Theft , Environment Design , Cognition , Automobile Driving/psychology
2.
J Laryngol Otol ; 135(2): 179-181, 2021 Feb.
Article in English | MEDLINE | ID: mdl-33500010

ABSTRACT

BACKGROUND: Simulation training has become a core component in the training of ENT surgeons. It provides the opportunity for the repetitive practice of a surgical technique. Simulators are broadly categorised into low- and high-fidelity simulators. A method using a home microprocessor to enhance a low-fidelity surgical simulator is introduced. METHOD: The Yorick tonsil tie trainer was enhanced using an Arduino microcontroller attached to the simulated inferior pole of the tonsil. The Arduino was coded to give a visual stimulus when linear motion exceeded parameters. The prototype simulator was tested to gain information on whether the enhancement could identify differences between novice and expert users. CONCLUSION: An enhanced low-fidelity tonsil trainer was produced using a low-cost, simple home microprocessing board. The enhanced simulator gives objective feedback allowing for self-directed learning. Further research is required to evaluate the benefits of these enhancements above non-enhanced simulation training.


Subject(s)
Otolaryngologists/education , Palatine Tonsil/surgery , Simulation Training/methods , Biomedical Enhancement/methods , Clinical Competence/standards , Computer Simulation , Feedback , Humans , Simulation Training/economics , Simulation Training/statistics & numerical data , Surgeons/education
3.
World J Gastroenterol ; 25(10): 1197-1209, 2019 Mar 14.
Article in English | MEDLINE | ID: mdl-30886503

ABSTRACT

BACKGROUND: It was shown in previous studies that high definition endoscopy, high magnification endoscopy and image enhancement technologies, such as chromoendoscopy and digital chromoendoscopy [narrow-band imaging (NBI), i-Scan] facilitate the detection and classification of colonic polyps during endoscopic sessions. However, there are no comprehensive studies so far that analyze which endoscopic imaging modalities facilitate the automated classification of colonic polyps. In this work, we investigate the impact of endoscopic imaging modalities on the results of computer-assisted diagnosis systems for colonic polyp staging. AIM: To assess which endoscopic imaging modalities are best suited for the computer-assisted staging of colonic polyps. METHODS: In our experiments, we apply twelve state-of-the-art feature extraction methods for the classification of colonic polyps to five endoscopic image databases of colonic lesions. For this purpose, we employ a specifically designed experimental setup to avoid biases in the outcomes caused by differing numbers of images per image database. The image databases were obtained using different imaging modalities. Two databases were obtained by high-definition endoscopy in combination with i-Scan technology (one with chromoendoscopy and one without chromoendoscopy). Three databases were obtained by high-magnification endoscopy (two databases using narrow band imaging and one using chromoendoscopy). The lesions are categorized into non-neoplastic and neoplastic according to the histological diagnosis. RESULTS: Generally, it is feature-dependent which imaging modalities achieve high results and which do not. For the high-definition image databases, we achieved overall classification rates of up to 79.2% with chromoendoscopy and 88.9% without chromoendoscopy. In the case of the database obtained by high-magnification chromoendoscopy, the classification rates were up to 81.4%. For the combination of high-magnification endoscopy with NBI, results of up to 97.4% for one database and up to 84% for the other were achieved. Non-neoplastic lesions were classified more accurately in general than non-neoplastic lesions. It was shown that the image recording conditions highly affect the performance of automated diagnosis systems and partly contribute to a stronger effect on the staging results than the used imaging modality. CONCLUSION: Chromoendoscopy has a negative impact on the results of the methods. NBI is better suited than chromoendoscopy. High-definition and high-magnification endoscopy are equally suited.


Subject(s)
Colonic Polyps/diagnostic imaging , Colonoscopy/methods , Colorectal Neoplasms/prevention & control , Diagnosis, Computer-Assisted/methods , Precancerous Conditions/diagnostic imaging , Colonic Polyps/pathology , Coloring Agents/administration & dosage , Humans , Image Enhancement/methods , Narrow Band Imaging/methods , Precancerous Conditions/pathology , Video Recording/methods
4.
New Bioeth ; 25(1): 24-38, 2019 Mar.
Article in English | MEDLINE | ID: mdl-30650047

ABSTRACT

This paper argues for a revised concept of authenticity entailing two demands that must be balanced. The first demand moves authenticity from the position of a strictly self-regarding virtue towards the position of a fully social virtue, acknowledging the crucial feature of steadiness, i.e. self-consistency, as being precisely what we 'naturally' lack (Williams). Nevertheless, the value of personal authenticity in a modern, open society comes from the fact that it brings about not only steadiness, but also the public development of a variety of existential options that can be understood as Millian 'original experiments in living'. Thus the second demand of authenticity is a demand for 'experimental' authenticity which covers the whole spectrum of technologies of the self, from Nietzschean 'brief habits', to the use of enhancement technologies.


Subject(s)
Biomedical Enhancement , Existentialism , Self Concept , Humans , Personal Autonomy , Personality , Virtues
5.
J Bioeth Inq ; 16(1): 127-131, 2019 Mar.
Article in English | MEDLINE | ID: mdl-30569377

ABSTRACT

Libertarians often portray the decision to use enhancement technologies purely as a matter of individual choice, affecting the person who uses them but no one else. Yet individual choices often add up to large social changes that profoundly affect the lives of other people, effectively pushing individual choices in a particular direction. It seems plausible that self-reinforcing loops such as those that have driven the adoption of technologies like cars and air-conditioners might also play a role in the adoption of enhancement technologies, effectively exerting pressure on people to use a technology that they might otherwise resist.


Subject(s)
Biomedical Enhancement , Biomedical Technology/ethics , Choice Behavior , Attitude to Health , Biomedical Enhancement/ethics , Humans , Social Change
6.
Saúde Soc ; 24(3): 1033-1046, jul.-set. 2015.
Article in Portuguese | LILACS | ID: lil-756583

ABSTRACT

São abordadas e discutidas as tecnologias de melhoramento e sua meta de vender a possibilidade (real ou virtual) de manter e proporcionar aparência de juventude, longevidade e até imortalidade aos seres humanos como modelo de construção da noção de si mesmo. Emprega-se a ideia de "promoção de saúde ampliada" tanto no sentido de intensificação dos discursos sustentando comportamentos saudáveis como alegoria fotográfica no sentido de ampliar a sua imagem e permitir uma visão mais aproximada de detalhes políticos, ideológicos e mercantis das suas proposições. A partir de uma tipologia das ciências contra o envelhecimento feita por John Vincent em: cosméticas, médicas, biológicas e imortalistas, são enfocados os dois últimos itens e suas implicações. Ao final, propõe-se um enfoque analítico da questão, destacando estratégias biopolíticas para lidar com a finitude humana através de enfoques preemptivos sob a égide da hiperprevenção e a busca de um tipo de felicidade como autossatisfação pessoal que necessita de tecnologias de melhoramento para ser alcançada.


In this article, we discuss enhancement technologies and their goal to sell the possibility (actual or virtual) of keeping and providing appearances of youth, longevity and even immortality for human beings as a construction model of the notion of self. We employ the idea of 'amplified health promotion' in the sense of intensification of discourses supporting healthy behaviours and also as a photographic allegory, in the sense of amplifying its image in order to allow a closer view of the political, ideological and mercantile details of its proposals. Based on a typology of the anti-ageing sciences, proposed by John Vincent as cosmetic, medical, biological and immortalist, we deal with the latter two and their implications. Finally, we propose an analytical focus on the subject, emphasizing biopolitical strategies to deal with human finitude through preemptive approaches with the support of hyper-prevention, and the search of a kind of happiness as personal self-fulfillment that needs enhancement technologies to be reached.


Subject(s)
Humans , Male , Female , Technological Development , Longevity , Medicine , Biomedical Enhancement , Biomedical Technology , Healthy Lifestyle , Health Promotion , Harm Reduction , Personal Satisfaction
7.
Acta bioeth ; 20(2): 237-245, nov. 2014.
Article in Spanish | LILACS | ID: lil-728254

ABSTRACT

La figura de la posthumanidad es invocada en una amplia gama de argumentos que defienden el atractivo o incluso el imperativo moral del perfeccionamiento humano por medio de la ingeniería genética. La posthumanidad se presenta en estos argumentos como un estado altamente beneficioso, el punto final de un proceso de evolución dirigida al que debemos abocar nuestros esfuerzos. Centrándome en los escritos del pensador transhumanista Nick Bostrom, cuestiono este rol normativo de la posthumanidad como justificación del proyecto de una eugenesia liberal. Para empezar, argumento que los costos y beneficios de un estado posthumano son imposibles de calcular. Por otro lado, identifico ciertos problemas relacionados con la posicionalidad e instrumentalidad de las capacidades aumentadas. Estas capacidades son valuables en la medida en que (1) proveen una ventaja relativa a un contexto y (2) son instrumentales al futuro bienestar de las personas. Argumento que no se puede establecer una conexión necesaria entre capacidades y bienestar y, por lo tanto, la promesa de la posthumanidad como un estado beneficioso es difícil de tomar seriamente.


The figure of posthumanity is invoked in a wide range of arguments that advertise the appeal or even the moral imperative of human enhancement through means of genetic engineering. Posthumanity is presented in these arguments as a highly beneficial state, the end point of a process of directed evolution to which we must devote our efforts. Focusing on the writings of transhumanist philosopher Nick Bostrom, in this article I question this normative role of posthumanity as a legitimation for liberal eugenics. For a start, I argue that the costs and benefits of a posthuman state are impossible to calculate. On the other hand, I identify certain problems concerning the positionality and instrumentality of augmented capacities. These capacities can be considered valuable inasmuch as they (1) provide an advantage relative to a context and (2) they are instrumental to the future benefit of persons. I argue that we cannot establish a necessary connection between capacities and wellbeing, thus the promise of posthumanity as a beneficial state is difficult to take seriously.


A figura da pós-humanidade é invocada em uma ampla gama de argumentos que defendem o atrativo, ou inclusive, o imperativo moral do aperfeiçoamento humano por meio da engenharia genética. A pós-humanidade apresenta-se nestes argumentos como um estado altamente beneficioso, o ponto final de um processo de evolução dirigida, para o qual devemos envidar os nossos esforços. Centrando-me nos escritos do pensador transhumanista Nick Bostrom, questiono este papel normativo da pós-humanidade como justificativa do projeto de uma eugenia liberal. Para começar, argumento que os custos e benefícios de um estado pós-humano são impossíveis de calcular. Por outro lado, identifico certos problemas relacionados com a posicionalidade e instrumentalidade das capacidades aumentadas. Estas capacidades são avaliáveis na medida em que (1) apresentem uma vantagem relativa a um contexto e (2) são instrumentos para o futuro bem-estar das pessoas. Argumento que não se pode estabelecer uma conexão necessária entre capacidades e bem-estar e, portanto, a promessa da pós-humanidade como um estado beneficioso é difícil de ser admitida seriamente.


Subject(s)
Humans , Dehumanization , Ethical Theory , Genetic Enhancement , Genetic Engineering/ethics
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