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23 results for “PVA”
Physical stabilization of water-soluble PVA nanofibrous materials functionalized with biologically active substances
<p>Tissue engineering aims to develop materials that enhance biological activity and promote tissue healing and regeneration. One promising approach is to functionalize nanofibrous materials with antimicrobial substances, such as lipophosphonoxin (LPPO), and use water-soluble polymers like polyvinyl alcohol (PVA) to incorporate bioactive molecules into fibers. However, water-soluble materials often face the issue of "burst release," releasing over 90% of the active substances within the initial 24 hours. This research focuses on preparing functionalized nanofibrous materials based on PVA containing the experimental antimicrobial compound LPPO and subsequent physical stabilization of the materials using the "Heat treatment" method. The applied stabilization successfully reduced the incorporated substance's release rate by up to 50%. The resulting materials have the potential to provide functional cross-linked PVA nanofiber scaffolds for regenerative medicine applications in large and chronic skin injuries.</p>
Vortex input file -- Humboldt penguin PVA
<p>Vortex project input file for PVA of Humboldt penguins, completed by workshop participants in Lima, Peru, 2019. Report of the full PHVA and PVA workshop is provided in:</p> <p>McGill, P., A. Baker, R. Lacy, R. Paredes, J. Reyes, J. Rodriguez, A. Tieber, & R. Wallace, (eds.) 2021. Humboldt penguin (Spheniscus humboldti) Population and Habitat Viability Assessment Workshop Final Report. IUCN SSC Conservation Planning Specialist Group, Apple Valley, MN, USA. A PDF of this workshop report can be downloaded at: www.cpsg.org.<br> </p>
Data set. Optical properties. J-aggregate:PVA polaritonic films.
<p>Optical properties (real and imaginary part of permittivity) of J-aggregate:PVA materials analysed in manuscript entitled "Bio-inspired building blocks for all-organic metamaterials from visible to near-infrared". </p> <p>arXiv preprint arXiv:2210.02315</p> <p> </p> <p> </p> <p> </p>
Allele dataset of western grasswren for use in VORTEX (PVA analysis)
<p>Conservation translocations have become an increasingly popular method to restore or secure vulnerable populations. However, translocations greatly vary in success. The use of population viability analysis (PVA) may increase the likelihood of meeting translocation goals. However, the quality of PVAs to inform translocations is dependent on the availability of ecological data and clear translocation objectives to guide them. Here, we used PVAs to inform the planned conservation translocation of the Western Grasswren (<em>Amytornis textilis textilis</em>) from mainland Shark Bay onto Dirk Hartog Island, Western Australia. A range of translocation scenarios was modelled and scored against success criteria as determined by translocation objectives. Simulations of 20-year outcomes found that a minimum founder population of 112 individuals meets all success criteria. PVA supported sourcing individuals from two subpopulations to maximise genetic diversity. No impact to source populations was detected for the proposed harvest quantities despite conservative estimates of initial source population sizes. Here we demonstrate that creating clear, measurable objectives alongside a PVA lessens ambiguity about which translocation scenarios could be viable. In doing so, we have identified the minimum translocation sizes needed to maintain genetic diversity and population growth, thus increasing the likelihood of translocation success without impacting the source population.</p>
injection of PVA MBs via microcatheter in microfluid channel
<p>jinjection tests operating the syringe manually, also in reverse flux, to verify the absence of obstructions and damages.Thereafter, the injection syringe was mounted on a programmable, step-by-step motor driven syringe pump system which was set at different constant volumetric flow rates, ranging from 0.05 ml/min to 1.12 ml/min according to material and methods, section "<em>Handling of microcatheters with PVA MBs for insertion in microfluidic channels"</em></p>
Vortex input files for PVA on Southern Resident Killer Whales
<p>Input files for publication:</p> <p>Lacy, R.C., R. Williams, E. Ashe, K.C. Balcomb III, L.J.N. Brent, C.W. Clark, D.P. Croft, D.A. Giles, M. MacDuffee, and P.C. Paquet. 2017. Evaluating anthropogenic threats to endangered killer whales to inform effective recovery plans. Scientific Reports 7:14119. doi: 10.1038/s41598-017-14471-0.</p>
Vortex project file for PVA of Southern Resident Killer Whale -- manuscript by Williams et al.
<p>Project file for Vortex PVA scenarios used in Williams et al. manuscript. </p> <p><span>Williams, R., R.C. Lacy, E. Ashe, L. Barrett-Lenard, T.M. Brown, J.K. Gaydos, F. Gulland, M. </span><span>MacDuffee, B.W. Nelson, K.A. Nielsen, H. Nollens, S. Raferty, S. Reiss, P.S. Ross, M.S. Collins, R. Stimmelmayr, & P. Paquet. 2024. Warning sign of an accelerating decline in critically endangered killer whales (<em>Orcinus orca</em>). Communications Earth & Environment (in press).</span></p>
Using Population Viability Analysis (PVA) to inform and adapt ex situ conservation activities benefitting a Critically Endangered butterfly
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Allele dataset of western grasswren for use in VORTEX (PVA analysis)
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Nanopore long reads enable the first complete genome assembly of a Malaysian Vibrio parahaemolyticus isolate bearing the pVa plasmid associated with acute hepatopancreatic necrosis disease
<p>Supplemental File 1: Main genome assemblies (Unpolished Flye assembly, Polished Flye assembly, Unicycler Hybrid Assembly and Unicycler Illumina-only assembly) generated in this study for comparison and their BUSCO output.</p> <p>Supplemental File 2: Phyre2 protein modelling output of the putative MVP1 TcdA toxin</p> <p>Supplemental File 3: Phyre2 protein modelling output of the putative MVP1 TcdB toxin</p> <p>Supplemental File 4: Phyre2 protein modelling output of the putative MVP1 TccC toxin</p> <p>Supplemental File 5: InterProScan output of the NCBI-predicted MVP1 proteome.</p> <p>Supplemental Table 1: NCBI BlastN output using the <em>fuc</em> genes of <em>Vibrio parahaemolyticus</em> MVP1 as the query to search against the Vibrio reference WGS database as of 21 Oct 2019</p>
Supporting Information videos: Ice-Template Crosslinked PVA Aerogels Modified with Tannic Acid and Sodium Alginate
<p>Vertical burning videos of different aerogels:</p> <p>Video S1: P5 aerogel during vertical burning.</p> <p>Video S2: P5T3A3 uncrosslinked aerogel during vertical burning.</p> <p>Video S3 and S4: Self-extinguished performance of P5T3A3 crosslinked aerogel.</p> <p> </p>
Electrospun PVA semi-IPN_[Chemical and physical characteristics]
<p>Electrospun PVA semi-IPN_[Chemical and physical characteristics]</p>
Incorporation of nitrogen-doped carbon dots synthesized from pomelo peels into PVA as highly antioxidant and UV-blocking food packaging film
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Figures 1-3 from: Ribeiro PVA, Baesse CQ, Cury MC, de Melo C (2020) Leukocyte profile of the helmeted manakin, Antilophia galeata (Passeriformes: Pipridae) in a Cerrado forest fragment. Zoologia 37: 1-9. https://doi.org/10.3897/zoologia.37.e46441
Figures 1-3 Number of lymphocytes for Antilophia galeata in relation to sex (1), presence/absence of incubation patch (2) and presence/absence of ticks (3). Boxes represent mean values while bars represent the standard error.
Denitrification performance of pseudomonas fluorescens Z03 immobilized by GO modified PVA-SA gel bead at low temperature
<p>Experimental data monitoring results.</p>
Figures for electrospinning of PVA-CS-CH3COOH-C2H5OH-H2O solution
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Denitrification performance of pseudomonas fluorescens Z03 immobilized by GO modified PVA-SA gel bead at low temperature
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DEB-TACE With Visualable Microspheres Versus PVA Microspheres for HCC
ClinicalTrials.gov study NCT06190665. IPD Sharing: Not stated. Countries: 1. Publications: 0.
EUS Guided HVA and PVA for Circulating Tumor DNA in Patients
ClinicalTrials.gov study NCT04782557. IPD Sharing: NO. Countries: 1. Publications: 0.
Intra-articular PVA Hydrogel in Knee Osteoarthritis
ClinicalTrials.gov study NCT04693104. IPD Sharing: NO. Countries: 1. Publications: 0.
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Allen Brain Atlas
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