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59 results for “UV Light”
Photonics4All Bookmark UV Light (German)
<p>The purpose of the bookmarks for the project Photonics4All is to increase the public awareness of photonics and especially of the technological advances of photonics which have changed and improved everyday life (basic technology introduction).<br> <br> How UV light can fight Ebola?</p> <p>UV light has been used for decades to disinfect air and water. Some parts of UV light are dangerous for our skin, but if well-managed UV is safe to use.<br> Recently, new types of light sources are producing UV light powers 25,000 times more intense than produced by the sun. These new light sources make it faster to kill a wider range of germs, and light is currently being used to eradicate the Ebola virus on both medical instruments and furniture in some hospitals.<br> All thanks to the progress in Photonics.</p>
Photonics4All Bookmark UV Light (Swedish)
<p>The purpose of the bookmarks for the project Photonics4All is to increase the public awareness of photonics and especially of the technological advances of photonics which have changed and improved everyday life (basic technology introduction).<br> <br> How UV light can fight Ebola?</p> <p>UV light has been used for decades to disinfect air and water. Some parts of UV light are dangerous for our skin, but if well-managed UV is safe to use.<br> Recently, new types of light sources are producing UV light powers 25,000 times more intense than produced by the sun. These new light sources make it faster to kill a wider range of germs, and light is currently being used to eradicate the Ebola virus on both medical instruments and furniture in some hospitals.<br> All thanks to the progress in Photonics.</p>
Photonics4All Bookmark UV Light (French)
<p>The purpose of the bookmarks for the project Photonics4All is to increase the public awareness of photonics and especially of the technological advances of photonics which have changed and improved everyday life (basic technology introduction).<br> <br> How UV light can fight Ebola?</p> <p>UV light has been used for decades to disinfect air and water. Some parts of UV light are dangerous for our skin, but if well-managed UV is safe to use.<br> Recently, new types of light sources are producing UV light powers 25,000 times more intense than produced by the sun. These new light sources make it faster to kill a wider range of germs, and light is currently being used to eradicate the Ebola virus on both medical instruments and furniture in some hospitals.<br> All thanks to the progress in Photonics.</p>
Photonics4All Bookmark UV Light (English)
<p>The purpose of the bookmarks for the project Photonics4All is to increase the public awareness of photonics and especially of the technological advances of photonics which have changed and improved everyday life (basic technology introduction).<br> <br> How UV light can fight Ebola?</p> <p>UV light has been used for decades to disinfect air and water. Some parts of UV light are dangerous for our skin, but if well-managed UV is safe to use.<br> Recently, new types of light sources are producing UV light powers 25,000 times more intense than produced by the sun. These new light sources make it faster to kill a wider range of germs, and light is currently being used to eradicate the Ebola virus on both medical instruments and furniture in some hospitals.<br> All thanks to the progress in Photonics.</p>
Data set for "On the Use of Pulsed UV or Visible Light Activated Gas Sensing of Reducing and Oxidising Species with WO3 and WS2 Nanomaterials"
<p>This excel file contains the raw data gathered with the measurements performed under different conditions of illumination for the different sensors. These data have been exploited in the paper "On the Use of Pulsed UV or Visible Light Activated Gas Sensing of Reducing and Oxidising Species with WO3 and WS2 Nanomaterials" DOI: 10.3390/s21113736</p>
Fig. 2 in Tolerance of Colpoda cucullus Nag-1 Resting Cysts and Presumed Structure for Protection against UV Light
Fig. 2. Nomarski images (A-1−F-1) and their fluorescence photomicrographs (A-2−F-2) showing the formation of the auto-fluorescent cyst wall and NSPs in the encysting cells (wet cysts) after the onset of encystment induction. The cyst age (3 h to 5 days; A–F) is given at the upper right of each photograph. ec/en: ectocyst-endocyst complex, ec: an ectocyst layer, le: lepidosomes, ma: macronucleus, mu: mucus, NSP: nuclei-surrounding particle.
Fig. 1 in Tolerance of Colpoda cucullus Nag-1 Resting Cysts and Presumed Structure for Protection against UV Light
Fig. 1. Photomicrographs of yellowish auto-fluorescent structures of the mature cysts (wet cysts) of C. cucullus Nag-1 aged>2 weeks by UV excitation (A−D) and electron micrographs showing auto-fluorescent nuclei-surrounding particles (NSPs) (E, F) and cyst wall components (G). A, B − A Nomarski image (A) of a mature resting cyst and its fluorescence photomicrograph (B) showing autofluorescent structures. cw: cyst wall, ma: macronucleus. C−D − A Nomarski image (C) of a mature resting cyst and its fluorescence photomicrograph (D) showing autofluorescent layers of cyst wall. ec/en: an ectocyst-endocyst layer complex, en: endocyst layer. E−F − Electron micrographs showing NSPs. G − Electron micrograph showing cyst wall components. ec: ectocyst layer, en-1: first-synthesized layer of endocyst, en-2–6: second – sixth layers of endocyst, m: plasma membrane.
Fig. 4 in Tolerance of Colpoda cucullus Nag-1 Resting Cysts and Presumed Structure for Protection against UV Light
Fig. 4. Nomarski image (A-1) and its fluorescence photomicrograph (A-2) of a vacant cyst (cyst wall sample) obtained from 1-weekaged mature cysts of C. cucullus Nag-1, and its absorption spectrum (B) obtained by a spectrophotometer equipped with an integrating sphere.
Low-cost test rig for characterization of photocatalytic two dimensional materials using photonically sized UV-A LED light sources
<p>In the presented studies, a system for the characterization of two-dimensional photocatalysts was developed and tested. In the system, reference substances can be studied online with regard to their degradability and adsorption on photocatalytic materials. In order to perform accurate calculations of the quantum and photon efficiency of the catalysts, the LED arrays used were adjusted in their spacing by simulations so that a homogeneous light field is imaged on the catalysts. The system was tested with respect to measurement accuracy and reproducibility and the photocatalytic degradation of methylene blue, methyl orange and rhodamine B was investigated. Exemplarily, the reaction kinetics, photolysis and adsorption on the tested photocatalysts were determined for these compounds and the calculation was presented in detail. The exact construction plans and circuits as well as the sensors and their programming are presented in detail and should encourage other scientists to replicate the experimental setup, since especially in the field of photocatalysis research, often the results of publications cannot be compared with each other.</p>
Data from: Pathogen reduction of monkeypox virus in plasma and whole blood using riboflavin and UV light
<p>Background</p> <p>Monkeypox virus has recently emerged from endemic foci in Africa and, to date, several hundred human infections have been reported from at least 16 non-African countries. The detection of virus in skin lesions, blood, semen, and saliva of infected patients with monkeypox infections raises the potential for disease transmission via routes that have not been previously documented, including by blood and plasma transfusions. Methods for protecting the blood supply against the threats of newly emerging disease agents exist and include Pathogen Reduction Technologies (PRT) which utilize photochemical treatment processes to inactivate pathogens in blood while preserving the integrity of plasma and cellular components. Such methods have been employed broadly for over 15 years, but effectiveness of these methods under routine use conditions against monkeypox virus has not been reported.</p> <p>Results</p> <p>The levels of spiked virus present in whole blood and plasma samples exceeded 103 infectious particles per dose, corresponding to greater than 105 DNA copies per mL. Treatment of whole blood and plasma units under standard operating procedures for the Mirasol PRT System resulted in complete inactivation of infectivity to the limits of detection. This is equivalent to a reduction of ≥ 2.86 +/- 0.73 log10 pfu/mL of infectivity in whole blood and ≥ 3.47 +/-0.19 log10 pfu/mL of infectivity in plasma under standard operating conditions for those products. </p> <p>Conclusion</p> <p>Based on this data and corresponding studies on infectivity in patients with monkeypox infections, use of Mirasol PRT would be expected to significantly reduce the risk of transfusion transmission of monkeypox.</p>
Oviposition behaviour is not affected by ultraviolet light in a butterfly with sexually-dimorphic expression of a UV-sensitive opsin
<p>Animal vision is important for mediating multiple complex behaviours. In <em>Heliconius</em> butterflies, vision guides fundamental behaviours such as oviposition, foraging and mate choice. Colour vision in <em>Heliconius</em> involves ultraviolet (UV), blue and long- wavelength sensitive photoreceptors (opsins). Additionally, <em>Heliconius</em> possess a duplicated UV opsin, and its expression varies widely within the genus. In <em>Heliconius</em> <em>erato</em>, opsin expression is sexually dimorphic; only females express both UV-sensitive opsins, enabling UV wavelength discrimination. However, the selective pressures responsible for sex-specific differences in opsin expression and visual perception remain unresolved. Female <em>Heliconius</em> invest heavily in finding suitable hostplants for oviposition, a behaviour heavily dependent on visual cues. Here, we tested the hypothesis that UV vision is important for oviposition in <em>H</em>. <em>erato</em> and <em>Heliconius</em> <em>himera</em> females by manipulating the availability of UV in behavioural experiments under natural conditions. Our results indicate that UV does not influence the number of oviposition attempts or eggs laid, and the hostplant, <em>Passiflora</em> <em>punctata</em>, does not reflect UV wavelengths. Models of <em>H. erato</em> female vision suggest only minimal stimulation of the UV opsins. Overall, these findings suggest that UV wavelengths do not directly affect the ability of <em>Heliconius</em> females to find suitable oviposition sites. Alternatively, UV discrimination could be used in the context of foraging or mate choice, but this remains to be tested.</p>
Datasets for the article "Regulation of IL-24/IL-20R2 complex formation using photocaged tyrosines and UV light"
<p>The datasets include:</p> <p>- Circular dichroism (CD) spectra (Figure 3B).</p> <p>- Nano differential scanning fluorimetry (DSF) melting curves (Figure 3C).</p> <p>- Size-exclusion chromatography (SEC) elution profiles (Figure 3D).</p> <p>- Deconvoluted mass spectra (MS) (Figure 4).</p> <p>- Microscale thermophoresis (MST) binding curves (Figure 5A).</p> <p>- Yeast surface display (YSD) binding curves (Figure 5C)</p> <p>- UV/Visible spectra (Figure S6)</p> <p>- Dose-response curves derived from Western blots (WB) (Figure S12C).</p> <p>For more information, please read:</p> <p>Pham, P.N.; Zahradnik, J.; Kolarova, L.; Schneider, B.; Fuertes, G. Regulation Of IL-24/IL-20R2 Complex Formation Using Photocaged Tyrosines and UV Light. <em>Front. Mol. Biosci.</em> 2023, 10.</p> <p>doi: <a href="http://doi.org/10.3389/fmolb.2023.1214235">https://doi.org/10.3389/fmolb.2023.1214235</a></p>
Dataset of paper "Removal of diclofenac by UV-B and UV-C light-emitting diodes (LEDs) driven advanced oxidation processes (AOPs): Wavelength dependence, kinetic modelling and energy consumption"
<p>Dataset of paper "Removal of diclofenac by UV-B and UV-C light-emitting diodes (LEDs) driven advanced oxidation processes (AOPs): Wavelength dependence, kinetic modelling and energy consumption"</p> <ul> <li>Molar absorption coefficient of the DCF (pH 7.2), FC (pH 8.5), and H<sub>2</sub>O<sub>2</sub> (pH 6.5) in the wavelength range of 200-400 nm. </li> <li>Time-based and UV fluence-based kinetic constant and synergy factor for the DCF degradation.</li> <li>Diclofenac degradation fitted by the proposed models (UV/H<sub>2</sub>O<sub>2</sub> and UV/FC).</li> <li>Oxidant degradation fitted by the proposed models (UV/H<sub>2</sub>O<sub>2</sub> and UV/FC).</li> </ul>
Data from: Pathogen reduction of monkeypox virus in plasma and whole blood using riboflavin and UV light
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Oviposition behaviour is not affected by ultraviolet light in a butterfly with sexually-dimorphic expression of a UV-sensitive opsin
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Climate change and underwater light: Large-scale changes in UV transparency associated with intensifying wet-dry cycles
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UV light-generated superhydrophilicity of a titanium surface enhances the transfer, diffusion, and adsorption of osteogenic factors from a collagen sponge
<p>Blood in the collagen sponge does not transfer to untreated implant. While, blood in the collagen sponge immediately and rapidly transfers to UV-treated implant. Blood spreads entire implant body in 10 seconds.</p>
FIGURE 4 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light
FIGURE 4. Images showing the same mummy of Fragariocoptes gansuensis under white light (A) and ultraviolet light with wavelength 395 nm (B) and 365 nm (C). Scale bar = 200 µm. Note: brightness and contrast have not been digitally adjusted, so the images correctly indicate the observed differences; same focus and adjustments of video camera in all three images.
FIGURE 3 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light
FIGURE 3. CLSM images of a male (A) and a female (B & C) of Fragariocoptes setiger (Nalepa, 1894). A & C—ventral aspect; B—dorsal aspect. Scale bar = 30 µm.
FIGURE 7 in Generic delimitation between Fragariocoptes and Sierraphytoptus (Acari: Eriophyoidea: Phytoptidae) and a supplementary description of Fragariocoptes gansuensis with remarks on searching for mummified eriophyoid mites in herbaria under UV light
FIGURE 7. CLSM (A−F) and DICLM (J−I) images showing variation of the prodorsal shield ornamentation in males (A & B) and females (C−I) of Fragariocoptes gansuensis. Note: Images A−F represent specimens from Astrakhan, whereas images J−I correspond to specimens from herbarium. Scale bar = 10 µm.
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Allen Brain Atlas
Allen Brain Atlas is an Allen Institute collection of brain map atlases, datasets, APIs, and analysis tools covering mouse, human, and non-human primate brain resources.
Annotated Behaviour and Observability Dataset (ABODe)
ABODe is a University of Edinburgh DataShare dataset for behavior classification in group-housed mice using home-cage video, identities, bounding boxes, ground-plate positions, and annotator labels.
DANDI Archive for NWB datasets
DANDI is a BRAIN Initiative archive for publishing and sharing neurophysiology data, including electrophysiology, optophysiology, and behavioral data packaged as NWB and related standards.
International Brain Laboratory public data
The International Brain Laboratory public data releases expose standardized mouse decision-making experiments, including Neuropixels recordings, widefield calcium imaging, behavior, and session metadata accessed through the ONE API.
OpenNeuro
OpenNeuro is a free, open platform for sharing neuroimaging datasets, with public search, dataset pages, and download paths for web, S3, DataLad, and the OpenNeuro CLI.