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Sara—the Search and Rescue Dog—and her Game of Fetch
Editor’s note: Jana Sweeny is the American Red Cross’s Director of International Communications. She and her team are traveling around Colombia this week, visiting communities made safer by the Red Cross.   As we walk into the Colombian Red Cross training center in Pereira, a yellow lab comes bouncing up, waving her tail enthusiastically. The ball in her mouth turns out to be a lime and she is ready to play fetch. Because I can never say no to a dog, I begin a game of “fetch the lime” with her. It turns out that Sara isn’t just a fun companion–she is a retired search and rescue dog.  The Colo...
Source: Red Cross Chat - January 24, 2014 Category: Global & Universal Authors: Jenelle Eli Tags: International Preparedness colombia dogs pets Search and Rescue South America Source Type: news

In search of best automated model: Explaining nanoparticle TEM image segmentation
This study focuses on finding the best segmentation model, which achieves high metrics and is robust to microscopy parameters. For this purpose, eight different models have been compared. The training dataset consists of 150 BF-TEM Platinum nanoparticle images containing 3629 nanoparticles of all kinds. Further, we examine the generalizability of the models on E-TEM Gold nanoparticle images. We also describe essential considerations while choosing a network for segmenting nanoparticle images that generalize well across the Platinum BF-TEM and Gold E-TEM nanoparticles dataset. The layer gradients are visualized to further e...
Source: Ultramicroscopy - December 25, 2021 Category: Laboratory Medicine Authors: Kunwar Muhammed Saaim Saima Khan Afridi Maryam Nisar Saiful Islam Source Type: research

Next Phase of NIH Preprint Pilot Launching Soon
Last month, the National Library of Medicine (NLM)announced plans to extend its NIH Preprint Pilot in PubMed Central (PMC) and PubMed beyond COVID-19 to encompass all preprints reporting on NIH-funded research. The second phase of the pilot, launching later this month, will include preprints supported by an NIH award, contract, or intramural program and posted to aneligible preprint server on or after January 1, 2023.In preparation for the launch of this second phase, we have updated PMC and PubMed site features to help users of these databases incorporate the increased volume of preprints into their discovery workflows. S...
Source: PubMed Central News - January 10, 2023 Category: Databases & Libraries Source Type: news

Second Phase of the NIH Preprint Pilot Launched
Today, we are pleased to announce the launch of the second phase of the NIH Preprint Pilot with the addition of more than 700 new preprint records to PubMed Central (PMC) and PubMed. This second phase expands the scope of the Pilot to include preprints resulting from all NIH-funded research. Eligible preprints are those acknowledging direct support of an NIH award or authored by NIH staff and posted to bioRxiv, medRxiv, arXiv, or Research Square, on or after January 1, 2023. NLM will automatically include the full text of the preprint (as license terms allow) and associated citation information in PMC and PubMed, respectiv...
Source: PubMed Central News - January 30, 2023 Category: Databases & Libraries Source Type: news

Biogenic Synthesis of Silver Nanoparticles Using Phyllanthus emblica Fruit Extract and Its Inhibitory Action Against the Pathogen Acidovorax oryzae Strain RS-2 of Rice Bacterial Brown Stripe
Conclusion In conclusion, this study clearly provides an economical, environmental friendly, and straightforward reproducible approach in AgNPs synthesis employing P. Emblica fruit extracts as a reducing, stabilizing, and capping agent. The biosynthesized AgNPs were characterized thoroughly by UV-Visible and Energy Dispersive X-Ray Spectroscopy, X-Ray diffraction, FTIR, TEM, HRTEM and SEM. The FTIR results found several phytochemicals responsible for the rapid reduction of ions, leading to AgNPs formation. Especially, hydroxyl groups oxidation of hydrolysate, which likely stimulated the formation of nanoparticles. In the ...
Source: Frontiers in Microbiology - April 25, 2019 Category: Microbiology Source Type: research

Visual Search Asymmetry: Deep Nets and Humans Share Similar Inherent Biases
This study highlights how classical perceptual properties can emerge in neural network models, without the need for task-specific training, but rather as a consequence of the statistical properties of the developmental diet fed to the model. All source code and data are publicly available at https://github.com/kreimanlab/VisualSearchAsymmetry.PMID:36062138 | PMC:PMC9436507
Source: Adv Data - September 5, 2022 Category: Epidemiology Authors: Shashi Kant Gupta Mengmi Zhang Chia-Chien Wu Jeremy M Wolfe Gabriel Kreiman Source Type: research

Computational ecotoxicology: Simultaneous prediction of ecotoxic effects of nanoparticles under different experimental conditions.
Abstract Nanotechnology has brought great advances to many fields of modern science. A manifold of applications of nanoparticles have been found due to their interesting optical, electrical, and biological/chemical properties. However, the potential toxic effects of nanoparticles to different ecosystems are of special concern nowadays. Despite the efforts of the scientific community, the mechanisms of toxicity of nanoparticles are still poorly understood. Quantitative-structure activity/toxicity relationships (QSAR/QSTR) models have just started being useful computational tools for the assessment of toxic effects ...
Source: Environment International - August 28, 2014 Category: Environmental Health Authors: Kleandrova VV, Luan F, González-Díaz H, Ruso JM, Melo A, Speck-Planche A, Cordeiro MN Tags: Environ Int Source Type: research

Enhancement of Odor-Induced Activity in the Canine Brain by Zinc Nanoparticles: A Functional MRI Study in Fully Unrestrained Conscious Dogs.
Abstract Using noninvasive in vivo functional magnetic resonance imaging (fMRI), we demonstrate that the enhancement of odorant response of olfactory receptor neurons by zinc nanoparticles leads to increase in activity in olfaction-related and higher order areas of the dog brain. To study conscious dogs, we employed behavioral training and optical motion tracking for reducing head motion artifacts. We obtained brain activation maps from dogs in both anesthetized state and fully conscious and unrestrained state. The enhancement effect of zinc nanoparticles was higher in conscious dogs with more activation in higher...
Source: Chemical Senses - October 12, 2015 Category: Biochemistry Authors: Jia H, Pustovyy OM, Wang Y, Waggoner P, Beyers RJ, Schumacher J, Wildey C, Morrison E, Salibi N, Denney TS, Vodyanoy VJ, Deshpande G Tags: Chem Senses Source Type: research