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3,684 results for “extract”
Data from: Reconciling timber extraction with biodiversity conservation in tropical forests using reduced-impact logging
1. Over 20% of the world's tropical forests have been selectively logged, and large expanses are allocated for future timber extraction. Reduced-impact logging (RIL) is being promoted as best practice forestry that increases sustainability and lowers CO2 emissions from logging, by reducing collateral damage associated with timber extraction. RIL is also expected to minimize the impacts of selective logging on biodiversity, although this is yet to be thoroughly tested. 2. We undertake the most comprehensive study to date to investigate the biodiversity impacts of RIL across multiple taxonomic groups. We quantified birds, bats and large mammal assemblage structures, using a before-after control-impact (BACI) design across 20 sample sites over a 5-year period. Faunal surveys utilized point counts, mist nets and line transects and yielded >250 species. We examined assemblage responses to logging, as well as partitions of feeding guild and strata (understorey vs. canopy), and then tested for relationships with logging intensity to assess the primary determinants of community composition. 3. Community analysis revealed little effect of RIL on overall assemblages, as structure and composition were similar before and after logging, and between logging and control sites. Variation in bird assemblages was explained by natural rates of change over time, and not logging intensity. However, when partitioned by feeding guild and strata, the frugivorous and canopy bird ensembles changed as a result of RIL, although the latter was also associated with change over time. Bats exhibited variable changes post-logging that were not related to logging, whereas large mammals showed no change at all. 4. Indicator species analysis and correlations with logging intensities revealed that some species exhibited idiosyncratic responses to RIL, whilst abundance change of most others was associated with time. 5. Synthesis and applications. Our study demonstrates the relatively benign effect of reduced-impact logging (RIL) on birds, bats and large mammals in a neotropical forest context, and therefore, we propose that forest managers should improve timber extraction techniques more widely. If RIL is extensively adopted, forestry concessions could represent sizeable and important additions to the global conservation estate – over 4 million km2.
Data from: Increase in extraction of I-123 iomazenil in patients with chronic cerebral ischemia
Background: Cerebral extraction of diffusively distributed substances like oxygen has been suggested to change according to the cerebral blood flow (CBF) and status of the microvasculature. The relationships between the cerebral extraction of diffusively distributed lipophilic tracers and the severity of cerebral ischemia has not yet been clarified. In the present study, we attempted to elucidate the association between the extraction fraction of the lipophilic tracer I-123 iomazenil (IMZ) (IMZ-EF) and the oxygen extraction fraction (OEF) derived from O-15 PET in patients with chronic steno-occlusive disease of internal carotid artery (ICA) or middle cerebral artery (MCA). Methods: Seven patients with unilateral chronic severe stenosis or occlusion of the middle cerebral/internal cerebral artery were prospectively recruited for this study. All the patients underwent both O-15 PET and quantitative I-123 IMZ SPECT. Parametric images derived from the PET and SPECT scans were anatomically normalized and evaluated by automated image analysis based on the volume-of-interest template. Results: The asymmetry index (AI) of IMZ-EF was shown to significantly correlated with the AI of OEF (r = 0.562, P < 0.001) in the internal carotid artery perfusion area. Strong and significant correlation between the AI of the influx rate constant K1 of IMZ and the AI of the cerebral metabolic rate of oxygen (r = 0.552, P = 0.001) was clarified. Conclusions: Our results suggested that the transportation efficiency of I-123 IMZ into the brain tissue was an indicator for evaluating severity of cerebral ischemia in patients with chronic steno-occlusive disease of ICA or MCA. Cerebral metabolic state can possibly be estimated by I-123 IMZ SPECT without cyclotron.
Global Star-formation Properties Extracted from Synthetic Star-forming Regions | Appendix C
<p>We provide in this online-material <span class="math-tex">\(\sim 5800\)</span> realistic synthetic observations (FITS files) of a synthetic star-forming region described in detail in Chapter 4 of the PhD thesis. </p> <p>Please cite the following papers:</p> <p>http://adsabs.harvard.edu/abs/2017ApJ...849….3K<br> http://adsabs.harvard.edu/abs/2017ApJS..233....1K</p>
Global Star-formation Properties Extracted from Synthetic Star-forming Regions | Appendix D
<p>We provide in this online-material measured dust surface density maps, dust temperature maps and corresponding <span class="math-tex">\(\chi^2\)</span> maps of a synthetic star-forming region described in detail in Chapter 5 of the PhD thesis.</p> <p>Please cite the following papers:</p> <p>http://adsabs.harvard.edu/abs/2017ApJ...849….3K<br> http://adsabs.harvard.edu/abs/2017ApJS..233....1K<br> http://adsabs.harvard.edu/abs/2017ApJ...849….1K</p>
MHNG Hydrozoa DNA1143-DNA1154 extractions
<p>Ectraction of DNA from Hydrozoa, specimens 1143-1154<br /> </p>
MHNG Hydrozoa DNA1155-DNA1166 extractions
<p>MHNG Hydrozoa DNA1155-DNA1166 extractions</p> <p>Note: DNA number 1155 was later reattributed to 1167</p>
FIGURE 1. Extract from Lallemand, 1952 in Taxonomic review of Sphenoclypeana and cladistic analysis of Ischnorhinini (Hemiptera, Cercopidae, Tomaspidinae)
FIGURE 1. Extract from Lallemand, 1952: "Fig. 5.—Sphenoclypeana brasiliensis DISTANT: tête et thorax (env. x 14)". FIGURE 2. Extract from Lallemand, 1952: "Fig. 4.—Sphenoclypeana brasiliensis DISTANT: tête, vue de profil (env. x 15)".
Clinical and laboratory variables of severe malaria extracted from included studies
<p>Data extracted from included studies per prognostic indicator needed to construct two-by-two tables made up of outcome (survival/death) and presence/absence of an indicator.</p>
Extracted dataset for: "Experiment and modeling of concentration-dependent diffusion in a solution with dual transport-phase flow for paper-based sensing"
Open the record for dataset details and reuse information.
Electron moments (density & temperature) extracted from MEA 1, during the cruise phase, onboard Bepicolombo.
<p>The following archive contain electron density and temperature, extracted with MEA 1 instrument, for all the solar wind and Venus fly-by campaigns.</p><p>It contains moments deduced with 3D data product mode (ne and Te) and with the Omni data product mode (ne only).</p><p>Refer to the articles:</p><p>"Pre-flight Calibration and Near-Earth Commissioning Results of the Mercury Plasma Particle Experiment (MPPE) Onboard MMO (Mio)"</p><p>from Y. Saito published on 2021 to get technical information on MEA detector.</p><p>and</p><p>"Electron moments derived from the Mercury Electron Analyzer during the cruise phase of BepiColombo" from Mathias Rojo, soon available 2023 (accepted with minor revisons),</p><p>to know how we derive those moments and what are the instrumental biais.</p>
FIGURE 2 in Detection, extraction, and collection of eriophyoid mites
FIGURE 2. Schematic drawings illustrating the extraction procedure: a) materials; b) washing phase; c) sieving phase and sieve rinsing; d) sediment collection on a Petri dish; e) microscope observation phase; f) eriophyoid concentration on a filter; g) eriophyoids on a filter; h) sediment collection on a centrifuge tube; i) first centrifugation; j) sieving phase of the tube contents; k) sediment collection on a Petri dish; l) salt solution adding to the sediment of the first centrifugation; m) second centrifugation. Black arrows refer to mite extraction from plant samples and counting; gray arrows refer to mite concentration; white arrows refer to egg concentration.
FIGURE 1 in Detection, extraction, and collection of eriophyoid mites
FIGURE 1. Extraction procedure: A) plant sample manipulation and placed in a container; B) washing of the plant sample; C) sieving of the suspension; D) sieve rinsing; E) sediment collection on a Petri dish; F) mite view at a dissecting microscope; G) vacuum pump apparatus; H) filter mounted on the vacuum pump apparatus.
Total fluorine (TF), extractable organofluorine (EOF) and sum of per- and polyfluoroalkyl substances (ΣPFAS) in artificial turfs from Stockholm, Sweden
<p>This data is associated with the publication "Widespread Occurrence of Non-Extractable Fluorine in Artificial Turfs from Stockholm, Sweden" (https://pubs.acs.org/doi/full/10.1021/acs.estlett.2c00260) and pertains artificial turfs components sampled in Stockholm, Sweden.</p><p>The excel file details concentrations of the sum of per- and polyfluoroalkyl substances (ΣPFAS), extractable organofluorine (EOF) and total fluorine (TF) in nanogram of fluorine per gram of sample (ng F/g) of the three different components of artificial turf (backing, blades and filling).</p>
Figs. 14–15 in "Berlese vs. Winkler": Comparison of Two Forest Litter Coleoptera Extraction Methods and the Ecoli (Extraction of Coleoptera in Litter) Protocol
Figs. 14–15. Number of Coleoptera specimens obtained at predetermined time intervals in two trials to test ECOLI protocol. 14) Trial A, Coleoptera specimens obtained from Berleses and Winklers at the initial 24-hr interval, during the intermediate interval at 96 hrs, and at the terminal extraction interval of 216 hrs; 15) Trial B, Coleoptera specimens obtained from Berleses and Winklers at the initial 24-hr interval and the terminal extraction interval of 216 hrs following an intermediate resting period from 24–96 hrs.
Figs. 12–13 in "Berlese vs. Winkler": Comparison of Two Forest Litter Coleoptera Extraction Methods and the Ecoli (Extraction of Coleoptera in Litter) Protocol
Figs. 12–13. Accumulation of specimens of Curculionidae obtained from six litter samples across extraction intervals. 12) Berlese funnels; 13) Winkler funnels.
Figs. 8–9 in "Berlese vs. Winkler": Comparison of Two Forest Litter Coleoptera Extraction Methods and the Ecoli (Extraction of Coleoptera in Litter) Protocol
Figs. 8–9. Accumulation of specimens of "rare" Coleoptera species obtained from six litter samples across extraction intervals. 8) Berlese funnels; 9) Winkler funnels.
Figs. 6–7 in "Berlese vs. Winkler": Comparison of Two Forest Litter Coleoptera Extraction Methods and the Ecoli (Extraction of Coleoptera in Litter) Protocol
Figs. 6–7. Accumulation of Coleoptera species obtained from six litter samples across extraction intervals. 6) Berlese funnels; 7) Winkler funnels.
Figs. 10–11 in "Berlese vs. Winkler": Comparison of Two Forest Litter Coleoptera Extraction Methods and the Ecoli (Extraction of Coleoptera in Litter) Protocol
Figs. 10–11. Accumulation of specimens of Staphylinidae obtained from six litter samples across extraction intervals. 10) Berlese funnels; 11) Winkler funnels.
Figs. 2–3 in "Berlese vs. Winkler": Comparison of Two Forest Litter Coleoptera Extraction Methods and the Ecoli (Extraction of Coleoptera in Litter) Protocol
Figs. 2–3. Flow chart diagramming test of ECOLI protocol. 2) Trial A, sample continuously run with three extraction intervals at 24, 96, and 216 hrs; 3) Trial B, sample run with initial collection interval at 24 hrs, "resting" period from 24–96 hrs, and terminal extraction interval at 216 hrs.
Fig. 1 in "Berlese vs. Winkler": Comparison of Two Forest Litter Coleoptera Extraction Methods and the Ecoli (Extraction of Coleoptera in Litter) Protocol
Fig. 1. Map of the southern United States showing locations of litter sample field sites. Polk County, Arkansas; West Feliciana Parish, Louisiana; Winston County, Alabama; Cochise County, Arizona; Swain County, North Carolina; Hidalgo County, New Mexico; Sabine County, Texas.
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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.