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3D surgical instrument collection for computer vision and extended reality
Abstract The availability of computational hardware and developments in (medical) machine learning (MML) increases medical mixed realities’ (MMR) clinical usability. Medical instruments have played a vital role in surgery for ages. To further accelerate the implementation of MML and MMR, three-dimensional (3D) datasets of instruments should be publicly available. The proposed data collection consists of…
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Comparison of adaptive optical scanning holography based on new evaluation methods
Abstract Adaptive Optical Scanning Holography (AOSH) represents a powerful technique that employs an adaptive approach to selectively omit certain lines within holograms, guided by the utilization of Normalized-Mean-Error (NME) as a predictive measure. This approach effectively diminishes scanning time and conserves the storage space required for data preservation. However, there exists alternative methods superior to…
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The unexpected outcomes of artist-scientist collaborations
Your browser does not support the audio element. Download MP3 See transcript Artist and illustrator Lucy Smith helps botanists to identify new species. Usually they request a set of drawings, she says, with a detailed set of requirements. But Smith, who joined London’s Royal Botanic Gardens, Kew, more than 20 years ago, says: “We also…
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Local Bayesian Dirichlet mixing of imperfect models
Abstract To improve the predictability of complex computational models in the experimentally-unknown domains, we propose a Bayesian statistical machine learning framework utilizing the Dirichlet distribution that combines results of several imperfect models. This framework can be viewed as an extension of Bayesian stacking. To illustrate the method, we study the ability of Bayesian model averaging…
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Influence of forest vegetation restoration on carbon increment after mining
Abstract We have clarified the study area has a history of 65 years and has been restored for 6 years. This study investigated the carbon storage characteristics of undisturbed natural forests and restored mining vegetation in Yunnan Province, China. The goal was to quantify carbon reserves and increments to inform ecological restoration strategies. Four vegetation components (tree,…
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Earth just had its hottest year on record — climate change is to blame
The past 12 months were the hottest on record. Some 7.3 billion people worldwide were exposed, for at least 10 days, to temperatures that were heavily influenced by global warming, with one-quarter of people facing dangerous levels of extreme heat over the past 12 months, according to a report by the non-profit organization Climate Central.…
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Why is Delhi’s air pollution so bad right now?
As the Hindu festival of Diwali kicks off on 10 November, the Indian capital of Delhi, already blanketed in choking smog, is bracing for pollution to worsen. Over the past week, children struggling to breath the acrid air have flooded hospital emergency departments, and schools have been forced to close. Why is Delhi’s air pollution…
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Daily briefing: One-quarter of humanity exposed to dangerous levels of extreme heat in the last year
Hello Nature readers, would you like to get this Briefing in your inbox free every day? Sign up here. Extreme-heat events affected places including Texas in the past year.Credit: Brandon Bell/Getty Earth just had its hottest year on record Over the past 12 months, the average global temperature was 1.32 ℃ above the pre-industrial baseline,…
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Beliefs about success are prone to cognitive fallacies
Who will achieve high marks in school, flourish in their career or become an Olympian? Current theories of achievement provide answers that are intuitively appealing but scientifically flawed. Consequently, most of what people believe about how to achieve success is likely to be incorrect. For more than a century, scientists have proposed multiple explanations for…
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Lazy sedimentation
While the role of statoliths and the involvement of asymmetrical distribution of auxin in the gravitropic adjustments have been known for decades, the precise molecular mechanism connecting statolith position with downstream events has not been entirely elucidated. Mechanosensing was suspected for a long time, but a recent study in Cell by Haodong Chen and colleagues,…