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172 results for “DART”
The image processing of Milani: challenges after DART impact
<p>This dataset contain data for the paper The image processing of Milani challenges after DART impact, presented at ESA-GNC Sopot, Poland, June 2023 </p> <p>The .zip folder Dataset is made of 4 subfolders <br> -CoefficientsPCE With the PCEFull9.mat file with all the coefficients of the aPC basis and PCE listed in the paper<br> <br> -TestResults With the ResultsAll.mat file that contains the predicted and true values of phase angle over the test set illustrated in the paper and the MakePlot.m script in Matlab. You can use this data to compare your method directly with the results we have obtained in this work. The script generate a simple histogram plot and compute the mean, std, Q67, and Q95 values. </p> <p> -D1_with_sz_1p00s0ImagesDataset directory within this folder contains all data obtaind during the rendering phase of the 5k samples of Didymos using the polar scale of the Didymos Reference model by ESA (old values before impact).</p> <p> -D1_with_sz_0p78s0 ImagesDataset directory within this folder contains all data obtaind during the rendering phase of the 5k samples of Didymos using the polar scale of the Didymos Reference model by JHUAPL (updated values after impact). This directory also contains the pre-processed input-output pairs for the WCOB, NN, and PCE (X_features, Y) and CELM, and CNN (X_images, Y) methods. </p> <p>You can either decide to use the same pre-processed data we have used for training, validation, and testing or you can work with the raw data (the one from the ImagesDataset folder) to generate your own dataset. </p> <p>Feel free to drop a line vie email in case you need clarification at mattia.pugliatti@polimi.it or pugliatti.mattia@gmail.com</p>
Perturbed Parameters for ICEPACK-DART Study Titled "Exploring Bounded Non-parametric Ensemble Filter Impacts on Sea Ice Data Assimilation"
<p>The file contains the values of the two perturbed CICE parameters that were used in the study titled "Exploring Bounded Non-parametric Ensemble Filter Impacts on Sea Ice Data Assimilation." The tw perturbed parameters are the standard deviation of the dry snow grain radius (Rsnow), and the thermal conductivity of snow (Ksnow). There are 80 values since the ensemble used in the study had 80 members.</p>
Fusarium associated with Banana - DArT-seq Cuban and Latin-American samples
<p>Using genotyping-by-sequencing and whole genome comparisons, we investigated the genetic diversity across this suite of isolates and compared it with the genetic diversity in a global <em>Fusarium</em> panel.</p>
Divergence, gene flow and the origin of leapfrog geographic distributions: the history of color pattern variation in Phyllobates poison-dart frogs
<p>The geographic distribution of phenotypic variation among closely related populations is a valuable source of information about the evolutionary processes that generate and maintain biodiversity. Leapfrog distributions, in which phenotypically similar populations are disjunctly distributed and separated by one or more phenotypically distinct populations, represent geographic replicates for the existence of a phenotype, and are therefore especially informative. Phyllobates poison frogs. We found evidence for high levels of gene flow between neighboring populations but not over long distances, indicating that gene flow between populations exhibiting the central phenotype may have a homogenizing effect that maintains their similarity, and that introgression between "leapfroging" taxa has not played a prominent role as a driver of phenotypic diversity in <i>Phyllobates</i>. Although phylogenetic analyses suggest that the leapfrog distribution was formed through independent evolution of the peripheral (i.e. leapfrogging) populations, the elevated levels of gene flow between geographically close populations poise alternative scenarios, such as the history of phenotypic change becoming decoupled from genome-averaged patterns of divergence, which we cannot rule out. These results highlight the importance of incorporating gene flow between populations into the study of geographic variation in phenotypes, both as a driver of phenotypic diversity and as a confounding factor of phylogeographic inferences.</p>
DART-TOFMS of heartwood and xylem anatomy of Afzelia bipindensis and Afzelia pachyloba
<p>Anatomical and spectral data of heartwood of <em>Afzelia bipindensis</em> and <em>A. pachyloba. </em>The spectra was measured by direct analysis in real-time (DART) time-of-flight mass spectrometry (TOFMS) of 50 trees of <em>Afzelia bipindensis</em> and 39 of <em>A. pachyloba</em>. Specimens from the xylarium collection of the U.S. Fish and Wildlife Service in Ashland, Oregon, USA. Mass spectra of the emitted wood compounds were acquired in positive ion mode over the mass range of m/z 60 to 1100. Poly(ethylene glycol) 600 (Ultra Scientific, Kingstown, Rhode Island, USA) was used as a mass calibration standard after every fifth sample. The DART source parameters settings were the same as described by Espinoza et al. IAWA J 36: 311–325 (2015) and Evans et al. IAWA J 38: 266-281 (2017).</p> <p>Xylem vessel tangential lumen diameter (µm) measured in transverse sections of wood of five trees of <em>Afzelia bipindensis</em> and five of <em>A. pachyloba</em>. Specimens from the xylarium of the Royal Museum for Central Africa in Belgium.</p> <p>Xylem ray height and width (µm) measured in tangential sections of wood of five trees of <em>Afzelia bipindensis</em> and five of <em>A. pachyloba</em>. Specimens from the xylarium of the Royal Museum for Central Africa in Belgium.</p>
Eastern bettong (Bettongia gaimardi) reintroduced to Mulligan's Flat Woodland Sanctuary and Tidbinbilla Nature Reserve: DArT SNPs + individual information
<p>Incorporating genetic data into conservation programmes improves management outcomes, but the impact of different sample-grouping methods on genetic diversity analyses is poorly understood. To this end, the multi-source reintroduction of the eastern bettong (<em>Bettongia gaimardi</em>) was used as a long-term case study to investigate how sampling regimes may affect common genetic metrics, and hence management decisions. The dataset comprised 5307 SNPs sequenced across 263 individuals. Samples included 45 founders from five genetically distinct Tasmanian source regions, and 218 of their descendants captured during annual monitoring at Mulligan's Flat Woodland Sanctuary (MFWS; 121 samples across eight generations), and Tidbinbilla Nature Reserve (TNR; 97 samples across nine generations). The most management-informative sampling regime was found to be generational cohorts, providing detailed long-term trends in genetic diversity. When these generation-specific trends were not investigated, recent changes in population genetics were masked, and it became apparent that management recommendations would be less appropriate. The results also illuminated the importance of considering establishment and persistence as separate phases of a multi-source reintroduction. The establishment phase (useful for informing early adaptive management) should consist of no less than two generations, and continue until admixture is achieved (admixture defined here as >80% of individuals possessing >60% of source genotypes, with no one source composing >70% of >20% individuals' genotype) is achieved. This ensures that the persistence phase analyses of population trends remain minimally biased. Based on this case study, we recommend that emphasis be given to the value of generationally specific analyses, and that conservation programmes collect DNA samples throughout the establishment and persistence phases, and avoid collecting genetic samples only when analysis is imminent. We also recommend that population genetic analyses for multi-source reintroductions consider whether admixture has been achieved when calculating descriptive genetic metrics. </p>
Fig. 76 in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 76. Strict consensus of 25,872 most parsimonious trees of 46,520 steps: relationships among dendrobatids. Numbers above branches are Bremer support values. Numbers following terminal names are unique sample identifiers. Terminals without numbers or with alphanumeric identifiers (GenBank numbers) were not sequenced for the present study or Frost et al. (2006) and were taken from GenBank. Unidentified species taken from GenBank are labeled as originally published. Upper right inset shows entire cladogram and corresponding figure numbers, with present view in black.
Fig. 68 in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 68. Length variation in character 142, retroarticular process of the mandible. A: nocturnus, AMNH 130041. B: riveroi, AMNH 134142. C: vittatus, AMNH 118386. D: lehmanni Myers and Daly, AMNH118442. E: pratti, AMNH118364. F: ''Neblina species'', AMNH 118667.
Fig. 72 in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 72. Strict consensus of 25,872 most parsimonious trees of 46,520 steps: relationships among dendrobatids. Numbers above branches are Bremer support values. Numbers following terminal names are unique sample identifiers. Terminals without numbers or with alphanumeric identifiers (GenBank numbers) were not sequenced for the present study or Frost et al. (2006) and were taken from GenBank. Unidentified species taken from GenBank are labeled as originally published. Upper right inset shows entire cladogram and corresponding figure numbers, with present view in black.
Fig. 74 in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 74. Strict consensus of 25,872 most parsimonious trees of 46,520 steps: relationships among dendrobatids. Numbers above branches are Bremer support values. Numbers following terminal names are unique sample identifiers. Terminals without numbers or with alphanumeric identifiers (GenBank numbers) were not sequenced for the present study or Frost et al. (2006) and were taken from GenBank. Unidentified species taken from GenBank are labeled as originally published. Upper right inset shows entire cladogram and corresponding figure numbers, with present view in black.
Fig. 62. Character 105, reproductive amplexus. State 2 in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 62. Character 105, reproductive amplexus. State 2, cephalic amplexus (anthonyi, AMNH live exhibit) shown in anterior (A) and lateral (B) aspects.
Fig. 63. Character 109, dorsal larval transport. State 1 in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 63. Character 109, dorsal larval transport. State 1, present (fraterdanieli, specimens at UVC). This male nurse frog was transporting 12 tadpoles.
Fig. 57 in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 57. Anterior view of the open mouth of the dendrobatid praderioi (CPI 10203) showing the short, tapered median lingual process (MLP).
Fig. 55. Character 70, m. semitendinosus binding tendon. State 1 in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 55. Character 70, m. semitendinosus binding tendon. State 1, present (aurotaenia, AMNH 161109), photograph (left) and outline drawing (right) showing view of the concealed surface of the knee. The mm. gracilis complex is deflected ventrally to reveal the dorsad ''ranid'' path of the m. semitendinosus and the secondary binding tendon that straps it to the outer edge of the mm. gracilis complex.
Fig. 54. Character 69, m in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 54. Character 69, m. semitendinosus insertion. Photograph (left) and outline drawing (right) of ventral view of distal thigh of Thoropa miliaris (AMNH 17044), showing state 0, ventrad ''bufonid'' path of insertion. Arrow indicates the m. semitendinosus tendon of insertion.
Fig. 52. Character 67 in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 52. Character 67, adult testis (mesorchium) color. State 2, entirely pigmented testes (claudiae, AMNH 124257) in ventral view.
Fig. 46. Character 61, male throat color. A in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 46. Character 61, male throat color. A: State 0, pale, free or almost free of melanophores (''Neblina species'', AMNH 118689). B: State 1, dark due to absence of iridophores (abditaurantius, ICN 9853). This character-state is inconspicuous in preserved specimens but obvious in living or recently prepared specimens. C: State 2, evenly stippled gray (infraguttatus, AMNH 104846). Note that the gularchest markings (character 58) of infraguttatus do not interfere with the even stippling of the throat. D: State 3, pale with dark spots (''nubicola-spC'', MHNUC 321). E: State 4, solid dark (inguinalis, LACM 42329). F: State 5, dark with discrete pale spotting/reticulation/marbling (tricolor, USNM 286082).
Fig. 48. Character 63, male abdomen color. A in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 48. Character 63, male abdomen color. A: State 0, pale, free or almost free of melanophores (''Neblina species'', AMNH 118689). B: State 1, pale with discrete dark spotting/reticulation/marbling (quinquevittatus, AMNH 124069). C: State 2, evenly stippled (talamancae, AMNH 113893). D: State 3, dark with discrete pale spotting/reticulation/marbling (infraguttatus, AMNH 104846). E: State 4, irregular (clumped) stippling or faint,
Fig. 53. Character 68, mature ova color. A in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 53. Character 68, mature ova color. A: State 0, white or yellowish (Atelopus spurrelli, AMNH 50983). B: State 1, pigmented (brown) (''Neblina species'', AMNH 118679).
Fig. 44 in PHYLOGENETIC SYSTEMATICS OF DART-POISON FROGS AND THEIR RELATIVES (AMPHIBIA: ATHESPHATANURA: DENDROBATIDAE)
Fig. 44. Extensive subdermal melanosis of the collar region. A, B: nocturnus (AMNH 130008). C, D: galactonotus (AMNH 128233). Note also the irregular (clumped) stippling or faint, diffuse spotting in A (character 61, state 6; see below).
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OpenNeuro
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