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For a philosophy of technology in China

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Movement registration and analysis for fall risk assessment in the hospital: lessons from an observational pilot study

BackgroundA valuable opportunity for reducing the fall incidence in hospitals, is alerting nurses when a patient is about to fall. For such a fall prevention system, more knowledge is needed on what occurs right before a fall. This can be achieved with a stereo camera that automatically detects (and records) dangerous situations.MethodsInpatients with a high risk of falling are selected for inclusion. A fall-risk questionnaire is administered and falls are logged during their stay. A stereo-camera (3D BRAVO-EagleEye system) is mounted in the ceiling and monitors the bed with surroundings. A baseline recording is made to improve the algorithms behind the alert system. When a fall or dangerous situation is detected, monitoring data preceding the incident is stored. Data is analyzed to assess 1) the quality of the system and 2) the prevalence of dangerous situations. Interviews with senior nurses are included in the evaluation.ResultsData collection is ongoing (Currently n=18; falls=1), and currently consists of ±62 hour of baseline recordings and ±24 hour of event-based recordings. These recordings include false positives as well as actual high risk situations.ConclusionsDespite the initial enthusiasm of the participating departments, inclusion of participants is slow, and the number of falls lower than expected. Possible explanations for this have been discussed with the involved senior nurses. With the monitoring data we gained more insight into the occurrence of dangerous situations, but to be able to reliably predict falls, more data on actual fallsshould be recorded.

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Movement registration and analysis for fall risk assessment in the hospital: lessons from an observational pilot study

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The age of total images

In The Age of Total Images, art historian Ana Peraica focuses on the belief that the shape of the planet is two-dimensional which has been reawakened in the late 20th and early 21st centuries, and the ways in which these ‘flat Earth’ conspiracy theories are symptomatic of post-digital image culture. Such theories, proven to be false both in Antiquity and Modernity, but once held to be true in the Medieval Period, have influenced a return to a kind of ‘New Medievalism’.

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Expertise and Deceptive Movements in Sport

Background: Deceptive movements occur when an actor seeks to fake, hide or delay kinematic information about their true movement outcomes. The purpose of deceptive movements is to impair the perception of opponents (the ‘observer’) to gain an advantage over them. We argue though that a lack of conceptual clarity has led to confusion about what deception is and in understanding the different approaches by which an actor can deceive their opponent. The aim of this article is to outline a conceptual framework for understanding deceptive movements in sport. Main body: Adopting Interpersonal Deception Theory from the field of communication, we define deception as when an actor deliberately alters their actions in an attempt to impair the ability of an observer to anticipate their true action outcomes. Further, deception can be achieved either by what we define as deceit, the act of providing false information, or disguise, the act of concealing the action outcome. Skilled athletes often have actions that are difficult to anticipate, but an action is only classified as containing deception if the actor has explicit intent to deceive an observer. Having outlined the conceptual framework, we then review existing empirical findings on the skilled perception of deceptive movements considering the framework. This approach includes a critical evaluation of the mechanisms known to facilitate the perceptual ability to prevent being deceived, including a consideration of visual search strategies, confidence, the contribution of visual and motor experiences, and the influence of response biases and action capabilities on perceptual performance. Conclusion: The distinction between deceit and disguise particularly helps to show that most research has examined deceit, with little known about how an actor can more effectively disguise their action, or about how an observer can improve their ability to anticipate the outcome of disguised actions. The insights help to identify fruitful areas for future research and outline implications for skill acquisition and performance enhancement.

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Expertise and Deceptive Movements in Sport

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The Politics of Social Media Manipulation

Disinformation and so-called fake news are contemporary phenomena with rich histories. Disinformation, or the willful introduction of false information for the purposes of causing harm, recalls infamous foreign interference operations in national media systems. Outcries over fake news, or dubious stories with the trappings of news, have coincided with the introduction of new media technologies that disrupt the publication, distribution and consumption of news -- from the so-called rumour-mongering broadsheets centuries ago to the blogosphere recently. Designating a news organization as fake, or der Lügenpresse, has a darker history, associated with authoritarian regimes or populist bombast diminishing the reputation of 'elite media' and the value of inconvenient truths. In a series of empirical studies, using digital methods and data journalism, the authors inquire into the extent to which social media have enabled the penetration of foreign disinformation operations, the widespread publication and spread of dubious content as well as extreme commentators with considerable followings attacking mainstream media as fake.

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Prediction of carcinogenic potential of chemicals using repeated-dose (13-week) toxicity data

From the article: Abstract Sub-chronic toxicity studies of 163 non-genotoxic chemicals were evaluated in order to predict the tumour outcome of 24-month rat carcinogenicity studies obtained from the EFSA and ToxRef databases. Hundred eleven of the 148 chemicals that did not induce putative preneoplastic lesions in the sub-chronic study also did not induce tumours in the carcinogenicity study (True Negatives). Cellular hypertrophy appeared to be an unreliable predictor of carcinogenicity. The negative predictivity, the measure of the compounds evaluated that did not show any putative preneoplastic lesion in de sub-chronic studies and were negative in the carcinogenicity studies, was 75%, whereas the sensitivity, a measure of the sub-chronic study to predict a positive carcinogenicity outcome was only 5%. The specificity, the accuracy of the sub-chronic study to correctly identify non-carcinogens was 90%. When the chemicals which induced tumours generally considered not relevant for humans (33 out of 37 False Negatives) are classified as True Negatives, the negative predictivity amounts to 97%. Overall, the results of this retrospective study support the concept that chemicals showing no histopathological risk factors for neoplasia in a sub-chronic study in rats may be considered non-carcinogenic and do not require further testing in a carcinogenicity study.

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Prediction of carcinogenic potential of chemicals using repeated-dose (13-week) toxicity data

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Withered mainstream areas and polarization

In this article, it is argued that In polarization, we fixate on two poles, like true and false, news versus fake news, real versusfalse, or in a social context, rich versus poor, and good versus bad. This is an instance of singular thinking, because a third factor is overlooked, being the area between the two poles, where the polarized elements come from. The gap, divide or rift, is in fact an area. With growth at the poles, polarization, instead of fixating on the poles, one should also look at the intermediate area, the mainstream area.

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Withered mainstream areas and polarization

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Switching modalities in a sentence verification task : ERP evidence for embodied language processing

In an event related potential (ERP) experiment using written language materials only, we investigated a potential modulation of the N400 by the modality switch effect. The modality switch effect occurs when a first sentence, describing a fact grounded in one modality, is followed by a second sentence describing a second fact grounded in a different modality. For example, "A cellar is dark" (visual), was preceded by either another visual property "Ham is pink" or by a tactile property "A mitten is soft." We also investigated whether the modality switch effect occurs for false sentences ("A cellar is light"). We found that, for true sentences, the ERP at the critical word "dark" elicited a significantly greater frontal, early N400-like effect (270-370 ms) when there was a modality mismatch than when there was a modality-match. This pattern was not found for the critical word "light" in false sentences. Results similar to the frontal negativity were obtained in a late time window (500-700 ms). The obtained ERP effect is similar to one previously obtained for pictures. We conclude that in this paradigm we obtained fast access to conceptual properties for modality-matched pairs, which leads to embodiment effects similar to those previously obtained with pictorial stimuli.

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Cooperative Learning in Vietnam and the West–East educational transfer

Under pressure of the continuing need to modernize, Vietnam is rapidly reforming its education system. Cooperative Learning (CL) with a Western-based model is being enthusiastically applied. This paper suggests that an authentic form of CL has long existed in the foundations of Vietnamese education. The reasons why Western-based CL is encouraged can be attributed to false universalism (the belief that a practice that originated from elsewhere can be “cloned” with similar results) and neo-colonialism (the perpetuation of a colonial mindset under the pressure of financial loans). While an adjusted form of CL has been suggested by previous studies to make CL culturally appropriate, this paper argues that a true hybrid form of CL which takes into account the authentic CL will have more potential to make this method not only culturally but institutionally appropriate. The paper indicates a strong need to identify and incorporate indigenous practice in the process of educational reform.

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Producten 531

For a philosophy of technology in China

Movement registration and analysis for fall risk assessment in the hospital: lessons from an observational pilot study

The age of total images

Expertise and Deceptive Movements in Sport

The Politics of Social Media Manipulation

Prediction of carcinogenic potential of chemicals using repeated-dose (13-week) toxicity data

Withered mainstream areas and polarization

Switching modalities in a sentence verification task : ERP evidence for embodied language processing

Cooperative Learning in Vietnam and the West–East educational transfer

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Producten 531

For a philosophy of technology in China

Movement registration and analysis for fall risk assessment in the hospital: lessons from an observational pilot study

The age of total images

Expertise and Deceptive Movements in Sport

The Politics of Social Media Manipulation

Prediction of carcinogenic potential of chemicals using repeated-dose (13-week) toxicity data

Withered mainstream areas and polarization

Switching modalities in a sentence verification task : ERP evidence for embodied language processing

Cooperative Learning in Vietnam and the West–East educational transfer