keyword
https://read.qxmd.com/read/38531191/aerial-single-target-acuity-of-harbor-seals-phoca-vitulina-for-stationary-and-moving-targets-of-varying-contrast
#21
JOURNAL ARTICLE
Laura-Marie Sandow, Frederike D Hanke
Harbor seals (Phoca vitulina) need to detect single objects for example when orienting to landmarks or hunting prey. The detection of single objects, described by the single target acuity (STA), cannot be deduced from formerly determined grating acuity (GA) as different mechanisms underlie STA and GA. Thus, we assessed STA for stationary and moving single targets with varying contrast in two harbor seals in a first approach in air. In a two-alternative-forced-choice discrimination task, the seals had to indicate whether the single target was presented in a left or right stimulus field on a monitor...
March 25, 2024: Vision Research
https://read.qxmd.com/read/38530997/assessment-of-microvascular-changes-after-rhegmatogenous-retinal-detachment-repair-using-wide-field-swept-source-optical-coherence-tomography-angiography
#22
JOURNAL ARTICLE
Rachel Tandias, Itika Garg, Margaret J Duich, Filippos Vingopoulos, Raviv Katz, Rebecca Zeng, Leo A Kim, Deeba Husain, Dean Eliott, Nimesh A Patel, John B Miller
BACKGROUND AND OBJECTIVE: Our objective was to evaluate retinal microvascular changes and visual outcomes following rhegmatogenous retinal detachment (RRD) repair using wide-field swept-source optical coherence tomography angiography (WF SS-OCTA). PATIENTS AND METHODS: The study included 116 eyes of 111 patients with macula-off ( n = 68) or macula-on ( n = 48) RRD treated with a single successful procedure, 79 fellow eyes, and 183 eyes of control patients imaged with WF SS-OCTA (3 ×3, 6 ×6, and 12 ×12 mm images)...
March 1, 2024: Ophthalmic Surgery, Lasers & Imaging Retina
https://read.qxmd.com/read/38530727/reconstructing-complex-shaped-clothing-from-a-single-image-with-feature-stable-unsigned-distance-fields
#23
JOURNAL ARTICLE
Xinqi Liu, Jituo Li, Guodong Lu
Single-view clothing reconstruction usually relies on topologically fixed clothing templates to reduce the problem complexity, but this strategy also makes the reconstructed clothing shape contours simple and lack diversity. In this paper, we propose a novel clothing reconstruction method to generate complex shape contours and open clothing mesh from a single image. At the heart of our work is an implicit unsigned distance field condition on clothing-oriented and pose-stable spatial shape features to represent the clothing from the image...
March 26, 2024: IEEE Transactions on Visualization and Computer Graphics
https://read.qxmd.com/read/38530430/quantitative-susceptibility-mapping-for-detection-of-kidney-stones-hemorrhage-differentiation-and-cyst-classification-in-adpkd
#24
JOURNAL ARTICLE
Karl Schumacher, Martin R Prince, Jon D Blumenfeld, Hanna Rennert, Zhongxiu Hu, Hreedi Dev, Yi Wang, Alexey V Dimov
BACKGROUND AND PURPOSE: The objective is to demonstrate feasibility of quantitative susceptibility mapping (QSM) in autosomal dominant polycystic kidney disease (ADPKD) patients and to compare imaging findings with traditional T1/T2w magnetic resonance imaging (MRI). METHODS: Thirty-three consecutive patients (11 male, 22 female) diagnosed with ADPKD were initially selected. QSM images were reconstructed from the multiecho gradient echo data and compared to co-registered T2w, T1w, and CT images...
March 26, 2024: Abdominal Radiology
https://read.qxmd.com/read/38529897/muscae-volitantes-a-19th-century-precursor-of-visual-snow-syndrome
#25
JOURNAL ARTICLE
Mark W Weatherall
PURPOSE: Visual snow syndrome comprises a whole-field static-like visual disturbance, with increased awareness of entopic phenomena, an inability to suppress the 'just seen' and photophobia. Visual snow syndrome is often associated with other problems such as headache, tinnitus, and anxiety. The earliest reported case of a patient experiencing symptoms consistent with visual snow syndrome dates only to 1995. This paper seeks to find patterns of experience in the medical literature of the past that are reminiscent of visual snow syndrome, to challenge the view that it is in any sense a novel disorder...
March 2024: Cephalalgia: An International Journal of Headache
https://read.qxmd.com/read/38529642/tandem-mass-spectrometry-across-platforms
#26
JOURNAL ARTICLE
Corey Hoang, Winnie Uritboonthai, Linh Hoang, Elizabeth M Billings, Aries Aisporna, Farshad A Nia, Rico J E Derks, James R Williamson, Martin Giera, Gary Siuzdak
PubChem serves as a comprehensive repository, housing over 100 million unique chemical structures representing the breadth of our chemical knowledge across numerous fields including metabolism, pharmaceuticals, toxicology, cosmetics, agriculture, and many more. Rapid identification of these small molecules increasingly relies on electrospray ionization (ESI) paired with tandem mass spectrometry (MS/MS), particularly by comparison to genuine standard MS/MS data sets. Despite its widespread application, achieving consistency in MS/MS data across various analytical platforms remains an unaddressed concern...
March 26, 2024: Analytical Chemistry
https://read.qxmd.com/read/38529028/an-easily-implemented-single-visit-survey-method-for-intermittently-available-and-imperfectly-detectable-wildlife-applied-to-the-florida-east-coast-diamondback-terrapin-malaclemys-terrapin-tequesta
#27
JOURNAL ARTICLE
Eric D Stolen, David R Breininger, Daniel J Breininger, Robert D Breininger
Single-visit surveys of plots are often used for estimating the abundance of species of conservation concern. Less-than-perfect availability and detection of individuals can bias estimates if not properly accounted for. We developed field methods and a Bayesian model that accounts for availability and detection bias during single-visit visual plot surveys. We used simulated data to test the accuracy of the method under a realistic range of generating parameters and applied the method to Florida's east coast diamondback terrapin in the Indian River Lagoon system, where they were formerly common but have declined in recent decades...
March 2024: Ecology and Evolution
https://read.qxmd.com/read/38528885/intra-v1-functional-networks-and-classification-of-observed-stimuli
#28
JOURNAL ARTICLE
Marlis Ontivero-Ortega, Jorge Iglesias-Fuster, Jhoanna Perez-Hidalgo, Daniele Marinazzo, Mitchell Valdes-Sosa, Pedro Valdes-Sosa
INTRODUCTION: Previous studies suggest that co-fluctuations in neural activity within V1 (measured with fMRI) carry information about observed stimuli, potentially reflecting various cognitive mechanisms. This study explores the neural sources shaping this information by using different fMRI preprocessing methods. The common response to stimuli shared by all individuals can be emphasized by using inter-subject correlations or de-emphasized by deconvolving the fMRI with hemodynamic response functions (HRFs) before calculating the correlations...
2024: Frontiers in Neuroinformatics
https://read.qxmd.com/read/38527274/narrow-bandgap-metal-halide-perovskites-for-all-perovskite-tandem-photovoltaics
#29
REVIEW
Shuaifeng Hu, Jarla Thiesbrummel, Jorge Pascual, Martin Stolterfoht, Atsushi Wakamiya, Henry J Snaith
All-perovskite tandem solar cells are attracting considerable interest in photovoltaics research, owing to their potential to surpass the theoretical efficiency limit of single-junction cells, in a cost-effective sustainable manner. Thanks to the bandgap-bowing effect, mixed tin-lead (Sn-Pb) perovskites possess a close to ideal narrow bandgap for constructing tandem cells, matched with wide-bandgap neat lead-based counterparts. The performance of all-perovskite tandems, however, has yet to reach its efficiency potential...
March 25, 2024: Chemical Reviews
https://read.qxmd.com/read/38527078/from-motion-to-emotion-visual-pathways-and-potential-interconnections
#30
JOURNAL ARTICLE
Aina Puce
The two visual pathway description of [Ungerleider, L. G., & Mishkin, M. Two cortical visual systems. In D. J. Dingle, M. A. Goodale, & R. J. W. Mansfield (Eds.), Analysis of visual behavior (pp. 549-586). Cambridge, MA: MIT, 1982] changed the course of late 20th century systems and cognitive neuroscience. Here, I try to reexamine our laboratory's work through the lens of the [Pitcher, D., & Ungerleider, L. G. Evidence for a third visual pathway specialized for social perception. Trends in Cognitive Sciences, 25, 100-110, 2021] new third visual pathway...
March 22, 2024: Journal of Cognitive Neuroscience
https://read.qxmd.com/read/38527020/uv-reflectance-in-crop-remote-sensing-assessing-the-current-state-of-knowledge-and-extending-research-with-strawberry-cultivars
#31
JOURNAL ARTICLE
Megan Heath, David St-Onge, Robert Hausler
Remote sensing of spectral reflectance is a crucial parameter in precision agriculture. In particular, the visual color produced from reflected light can be used to determine plant health (VIS-IR) or attract pollinators (Near-UV). However, the UV spectral reflectance studies largely focus on non-crop plants, even though they provide essential information for plant-pollinator interactions. This literature review presents an overview of UV-reflectance in crops, identifies gaps in the literature, and contributes new data based on strawberry cultivars...
2024: PloS One
https://read.qxmd.com/read/38527001/clinical-validation-of-rcsms-a-rapid-and-sensitive-crispr-cas12a-test-for-the-molecular-detection-of-sars-cov-2-from-saliva
#32
JOURNAL ARTICLE
Joaquín Abugattas-Núñez Del Prado, Angélica Quintana Reyes, Julio Leon, Juan Blume La Torre, Renzo Gutiérrez Loli, Alejandro Pinzón Olejua, Elena Rocío Chamorro Chirinos, Félix Antonio Loza Mauricio, Jorge L Maguiña, Piere Rodriguez-Aliaga, Edward Málaga-Trillo
Peru's holds the highest COVID death rate per capita worldwide. Key to this outcome is the lack of robust, rapid, and accurate molecular tests to circumvent the elevated costs and logistics of SARS-CoV-2 detection via RT-qPCR. To facilitate massive and timely COVID-19 testing in rural and socioeconomically deprived contexts, we implemented and validated RCSMS, a rapid and sensitive CRISPR-Cas12a test for the molecular detection of SARS-CoV-2 from saliva. RCSMS uses the power of CRISPR-Cas technology and lateral flow strips to easily visualize the presence of SARS-CoV-2 even in laboratories with limited equipment...
2024: PloS One
https://read.qxmd.com/read/38526875/generative-ai-for-visualization-opportunities-and-challenges
#33
JOURNAL ARTICLE
Rahul C Basole, Timothy Major, Rahul C Basole, Francesco Ferrise
Recent developments in artificial intelligence (AI) and machine learning (ML) have led to the creation of powerful generative AI methods and tools capable of producing text, code, images, and other media in response to user prompts. Significant interest in the technology has led to speculation about what fields, including visualization, can be augmented or replaced by such approaches. However, there remains a lack of understanding about which visualization activities may be particularly suitable for the application of generative AI...
2024: IEEE Computer Graphics and Applications
https://read.qxmd.com/read/38526804/diabetic-disease-of-the-eye-in-canada-consensus-statements-from-a-retina-specialist-working-group
#34
JOURNAL ARTICLE
Amer Omar, R Geoff Williams, James Whelan, Jason Noble, Michael H Brent, Michel Giunta, Sébastien Olivier, Mustapha Lhor
Despite advances in systemic care, diabetic disease of the eye (DDE) remains the leading cause of blindness worldwide. There is a critical gap of up-to-date, evidence-based guidance for ophthalmologists in Canada that includes evidence from recent randomized controlled trials. Previous guidance has not always given special consideration to applying treatments and managing DDE in the context of the healthcare system. This consensus statement aims to assist practitioners in the field by providing a spectrum of acceptable opinions on DDE treatment and management from recognized experts in the field...
March 23, 2024: Ophthalmology and Therapy
https://read.qxmd.com/read/38526290/optimal-transcorneal-electrical-stimulation-parameters-for-preserving-photoreceptors-in-a-mouse-model-of-retinitis-pigmentosa
#35
JOURNAL ARTICLE
Sam Enayati, Karen Chang, Anton Lennikov, Menglu Yang, Cherin Lee, Ajay Ashok, Farris Elzaridi, Christina Yen, Kasim Gunes, Jia Xie, Kin-Sang Cho, Tor Paaske Utheim, Dong Feng Chen
JOURNAL/nrgr/04.03/01300535-202419110-00034/figure1/v/2024-03-08T184507Z/r/image-tiff Retinitis pigmentosa is a hereditary retinal disease that affects rod and cone photoreceptors, leading to progressive photoreceptor loss. Previous research supports the beneficial effect of electrical stimulation on photoreceptor survival. This study aims to identify the most effective electrical stimulation parameters and functional advantages of transcorneal electrical stimulation (tcES) in mice affected by inherited retinal degeneration...
November 1, 2024: Neural Regeneration Research
https://read.qxmd.com/read/38526275/human-brain-organoid-trends-evolution-and-remaining-challenges
#36
JOURNAL ARTICLE
Minghui Li, Yuhan Yuan, Zongkun Hou, Shilei Hao, Liang Jin, Bochu Wang
Advanced brain organoids provide promising platforms for deciphering the cellular and molecular processes of human neural development and diseases. Although various studies and reviews have described developments and advancements in brain organoids, few studies have comprehensively summarized and analyzed the global trends in this area of neuroscience. To identify and further facilitate the development of cerebral organoids, we utilized bibliometrics and visualization methods to analyze the global trends and evolution of brain organoids in the last 10 years...
November 1, 2024: Neural Regeneration Research
https://read.qxmd.com/read/38526125/polycarbonate-ultracentrifuge-tube-re-use-in-proteomic-analyses-of-extracellular-vesicles
#37
JOURNAL ARTICLE
Rachel M E Cahalane, Mandy E Turner, Cassandra L Clift, Mark C Blaser, Gabrielle Bogut, Sydney Levy, Taku Kasai, Tom A P Driedonks, Esther N M Nolte-'t Hoen, Masanori Aikawa, Sasha A Singh, Elena Aikawa
Single-use laboratory plastics exacerbate the pollution crisis and contribute to consumable costs. In extracellular vesicle (EV) isolation, polycarbonate ultracentrifuge (UC) tubes are used to endure the associated high centrifugal forces. EV proteomics is an advancing field and validated re-use protocols for these tubes are lacking. Re-using consumables for low-yield protein isolation protocols and downstream proteomics requires reagent compatibility with mass spectroscopy acquisitions, such as the absence of centrifuge tube-derived synthetic polymer contamination, and sufficient removal of residual proteins...
March 8, 2024: Journal of Visualized Experiments: JoVE
https://read.qxmd.com/read/38526122/targeted-muscle-reinnervation-surgical-protocol-for-a-randomized-controlled-trial-in-postamputation-pain
#38
JOURNAL ARTICLE
Emily Pettersen, Paolo Sassu, Francesca Alice Pedrini, Hannes Granberg, Carina Reinholdt, Juan Manuel Breyer, Aidan Roche, Andrew Hart, Adil Ladak, Hollie A Power, Michael Leung, Michael Lo, Ian Valerio, Kyle R Eberlin, Theodore A Kung, Paul Cederna, Jason M Souza, Oskar Aszmann, Jason Ko, Gregory A Dumanian, Max Ortiz-Catalan
Over the past decade, the field of prosthetics has witnessed significant progress, particularly in the development of surgical techniques to enhance the functionality of prosthetic limbs. Notably, novel surgical interventions have had an additional positive outcome, as individuals with amputations have reported neuropathic pain relief after undergoing such procedures. Subsequently, surgical techniques have gained increased prominence in the treatment of postamputation pain, including one such surgical advancement - targeted muscle reinnervation (TMR)...
March 8, 2024: Journal of Visualized Experiments: JoVE
https://read.qxmd.com/read/38526117/spatial-high-resolution-analysis-of-gene-expression-levels-in-tendons
#39
JOURNAL ARTICLE
Steffany Villaseñor, Mor Grinstein
In recent years, many protocols have been developed for high-resolution transcriptomics in many different medical and biology fields. However, matrix-rich tissues, and specifically, tendons were left behind due to their low cell number, low RNA amount per cell, and high matrix content, which made them complicated to analyze. One of the recent and most important single-cell tools is the spatial analysis of gene expression levels in tendons. These RNA spatial tools have specifically high importance in tendons to locate specific cells of new and unknown populations, validate single-cell RNA-seq results, and add histological context to the single-cell RNA-seq data...
March 8, 2024: Journal of Visualized Experiments: JoVE
https://read.qxmd.com/read/38526084/recording-and-analyzing-multimodal-large-scale-neuronal-ensemble-dynamics-on-cmos-integrated-high-density-microelectrode-array
#40
JOURNAL ARTICLE
Brett Addison Emery, Shahrukh Khanzada, Xin Hu, Diana Klütsch, Hayder Amin
Large-scale neuronal networks and their complex distributed microcircuits are essential to generate perception, cognition, and behavior that emerge from patterns of spatiotemporal neuronal activity. These dynamic patterns emerging from functional groups of interconnected neuronal ensembles facilitate precise computations for processing and coding multiscale neural information, thereby driving higher brain functions. To probe the computational principles of neural dynamics underlying this complexity and investigate the multiscale impact of biological processes in health and disease, large-scale simultaneous recordings have become instrumental...
March 8, 2024: Journal of Visualized Experiments: JoVE
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