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4,563 results for “correlations”
Microsatellites data set: Correlated population genetic structure in a three-tiered host-parasite system: the potential for coevolution and adaptive divergence
<p><span><span><span><span><span><span><span><span><span><span><span>Three subspecies of Northern Bahamian Rock Iguanas, <i>Cyclura cychlura</i>, are currently recognized: <i>C. c. cychlura,</i>restricted to Andros Island, and <i>C. c. figginsi</i> and <i>C. c. inornata,</i> native to the Exuma Island chain. Populations on Andros are genetically distinct from Exuma Island populations, yet genetic divergence among populations in the Exumas is inconsistent with the two currently recognized subspecies from those islands. The potential consequences of this discrepancy might include the recognition of a single subspecies throughout the Exumas rather than two. That inference also ignores evidence that populations of <i>C. cychlura</i> are potentially adaptively divergent. We compared patterns of population relatedness in a three-tiered host-parasite system: <i>C. cychlura</i> iguanas, their ticks (genus <i>Amblyomma</i>, preferentially parasitizing these reptiles), and <i>Rickettsia </i>spp. endosymbionts (within tick ectoparasites). Our results indicate that while <i>C. c. cychlura</i> on Andros is consistently supported as a separate clade, patterns of relatedness among populations of <i>C. c. figginsi</i> and <i>C. c. inornata</i> within the Exuma Island chain are more complex. The distribution of the hosts, different tick species, and <i>Rickettsia</i> spp., supports the evolutionary independence of <i>C. c. inornata</i>. Further, these patterns are also consistent with two independent evolutionarily significant units within <i>C. c. figginsi</i>. Our findings suggest coevolutionary relationships between the reptile hosts, their ectoparasites, and rickettsial organisms, suggesting local adaptation. This work also speaks to the limitations of using neutral molecular markers from a single focal taxon as the sole currency for recognizing evolutionary novelty in populations of endangered species.</span></span></span></span></span></span></span></span></span></span></span></p>
Dataset for effects of shear zone thickness in root-reinforced soils: Fallow P X-ray CT scans and digital volume correlation data
<p>Dataset for effects of shear zone thickness in root-reinforced soils: Fallow P X-ray CT scans and digital volume correlation data</p>
Dataset for effects of shear zone thickness in root-reinforced soils: Gorse A X-ray CT scans and digital volume correlation data
<p>Dataset for effects of shear zone thickness in root-reinforced soils: Gorse A X-ray CT scans and digital volume correlation data</p>
Dataset for effects of shear zone thickness in root-reinforced soils: Willow C X-ray CT scans and digital volume correlation data
<p>Dataset for effects of shear zone thickness in root-reinforced soils: Willow C X-ray CT scans and digital volume correlation data</p>
Dataset for effects of shear zone thickness in root-reinforced soils: Gorse G X-ray CT scans and digital volume correlation data
<p>Dataset for effects of shear zone thickness in root-reinforced soils: Gorse G X-ray CT scans and digital volume correlation data</p>
Dataset for effects of shear zone thickness in root-reinforced soils: Fallow D X-ray CT scans and digital volume correlation data
<p>Dataset for effects of shear zone thickness in root-reinforced soils: Fallow D X-ray CT scans and digital volume correlation data</p>
Capture history data for: Sub-seasonal correlation between growth and survival in three sympatric aquatic ectotherms
<p><span>Animals experience seasonally changing conditions in temperate regions, thus population vital rates change seasonally. However, knowledge is lacking on patterns of seasonal correlation between growth and survival in sympatric ectotherms, and this knowledge gap limits our understanding of environmental change impacts on animal populations and communities. Here, we investigated sub-seasonal (2-month intervals) correlation between growth and survival in three stream fishes (bluehead chub <em>Nocomis leptocephalus</em>, creek chub <em>Semotilus atromaculatus</em>, and mottled sculpin <em>Cottus bairdii</em>) in South Carolina, USA, via a mark-recapture survey over 28 months. </span></p> <p><span><span>We found that </span></span><span><span><span>the patterns of temporal correlation between growth and survival differed among the sympatric species. G</span></span></span><span><span>rowth increased and survival decreased with water temperature in two eurythermal species (bluehead chub and creek chub), resulting in a negative correlation between growth and survival. Growth peaked in sub-seasons with an intermediate water temperature range in a third stenothermal species (mottled sculpin), while survival decreased with water temperature for this species too. Consequently, there was no significant negative or positive correlation between sub-seasonal growth and survival in the stenothermal species. </span></span></p> <p><span><span><span>Negative correlation among population vital rates stabilizes population size over time and buffers animal populations from environmental change because the vital rates are not affected simultaneously in the same direction, indicating some degree of resiliency in the face of climate changes in the two eurythermal species. However, such a demographic mechanism of resiliency could be maintained so long as climate warming does not exceed optimal growth temperature, above which a negative correlation between growth and survival may no longer be maintained.</span></span></span></p>
Seed dormancy and germination traits of 27 species inhabiting the degraded karst mountain from central Yunnan-Guizhou Plateau: Seed mass and moisture content correlates with germination capacity
<p>Seed dormancy and germination play an important roles in regulating germination timing and plant fitness in harsh environment, especially for fragile karst region. Broadening the knowledge regarding seed ecology of native plant species can improve local restoration management due to the increased biodiversity and success of seedling establishment, yet few studies have addressed this. We examined the dormancy types and germination responses to temperature regimes as well as light conditions of totally 27 that were dominant or common species inhabiting a degraded karst mountain from central Yunnan-Guizhou Plateau and assessed the relationships between seed traits and germination index using a partial least squares regression (PLSR). Approximately 48% of the investigated species exhibited physiological dormancy, 37% exhibited nondormancy, 7% exhibited morphophysiological dormancy, 4% exhibited morphological dormancy and 4% exhibited physical dormancy. Germination behaviors occurred in 16 of 27 species. The seed germination of 13 species strongly responded to seasonal temperature regimes, whereas 12 species were substantially affected by light conditions. About 94% species germinated to the maximum percent in warm temperature regimes (20/13 and 25/18 °C), while the remaining was in cool temperature regime (10/4 °C). The PLSR analysis indicated a significant positive correlation between seed mass and T50 m (time to 50% final germination), and a negative correlation between seed moisture content and percent germination, showing that small seeds, particularly those with a low moisture content, were more likely to have a greater germination capacity (including relative less germination time and higher germination percent) than large seeds in harsh karst environments. In general, these results strengthen the understanding of seed dormancy classification of dormant species and germination requirements of nondormant ones that representative of pioneer species of early stage of positive succession in seriously degraded sites and provide suggestion for species selection in local seed-based vegetation restoration.</p>
Data for "Noise-correlation spectrum for a pair of spin qubits in silicon"
<p>This dataset contains the data files for "Noise-correlation spectrum for a pair of spin qubits in silicon".</p>
Thermochemical Correlations Dataset
<p>This is the dataset for 'Transition-State Correlations for Predicting Thermochemistry of Adsorbates and Surface Reactions'.</p>
Correlation between Back-arc Spreading Center and Volcanic Arc Location
<p>The dataset includes the measurements of individual subduction zones defined in the convergence-parallel, trench-perpendicular, and spreading-parallel direction. </p> <p> </p> <p>Table B.3. Location of each trench, arc, and back-arc defined in the convergence-parallel direction, and the corresponding distance from the trench to the arc (D_TA), from the arc to the back-arc spreading center (D_AB), and from the trench to the back-arc spreading center (D_TB). </p> <p>Table B.4. Location of each trench, arc, and back-arc defined in the trench-perpendicular direction, and the corresponding distance from the trench to the arc (D_TA), from the arc to the back-arc spreading center (D_AB), and from the trench to the back-arc spreading center (D_TB).</p> <p>Table B.5. Location of each trench, arc, and back-arc defined in the spreading-parallel direction, and the corresponding distance from the trench to the arc (D_TA), from the arc to the back-arc spreading center (D_AB), and from the trench to the back-arc spreading center (D_TB). </p> <p>TableS1. Location of each trench, arc, and back-arc defined in the convergence-parallel direction, and the corresponding distance from the trench to the arc (D_TA), subarc slab depth (H), and from the trench to the back-arc spreading center (D_TB). The slab dip is measured at 50km (Dip50), 100km (Dip100), and 200km (Dip200) and averaged from 0 to 50 km (Dip050), 0 to 100km (Dip0100), 0 to 200km (Dip0200), and 50 to 200km (Dip50200). </p> <p>TableS2. Location of each trench, arc, and back-arc defined in the trench-perpendicular direction, and the corresponding distance from the trench to the arc (D_TA), subarc slab depth (H), and from the trench to the back-arc spreading center (D_TB). The slab dip is measured at 50km (Dip50), 100km (Dip100), and 200km (Dip200) and averaged from 0 to 50 km (Dip050), 0 to 100km (Dip0100), 0 to 200km (Dip0200), and 50 to 200km (Dip50200). </p> <p> </p>
Theoretical analysis of correlations between two quantum fields exciting a three-level system using the cluster-expansion approach
<p>Dataset of the publication "Theoretical analysis of correlations between two quantum fields exciting a three-level system using the cluster-expansion approach" H. Rose, O. V. Tikhonova, T. Meier, and P. R. Sharapova, Proc. SPIE 11999, Ultrafast Phenomena and Nanophotonics XXVI, 1199905 (2022). ( https://doi.org/10.1117/12.2608528 ). The zip file includes the data on which the plots shown in figures 1, 2, and 3 are based.</p>
Coincidence measurements of two quantum-correlated photon pairs widely separated in the frequency domain
<p>Quantum correlation is a key concept characterizing the properties of quantum light sources and is important for developing quantum applications with superior performance. In particular, it enables photon pairs that are widely separated in the frequency domain, one in the visible region, the other in the infrared region, to be used for quantum infrared sensing without direct detection of infrared photons. Here, simultaneous multiwavelength and broadband phase matching in a nonlinear crystal could provide versatile photon-pairs source for broadband infrared quantum sensing. This paper describes direct generation and detection of two quantum-correlated photon pairs produced via simultaneous phase-matched processes in periodic crystals. These simultaneous photon pairs provide a correlated state with two frequency modes in a single pass. To confirm the correlation, we constructed an infrared-photon counting system with two repetition-synchronized fiber lasers. We performed coincidence measurements between two pairs, 980 nm and 3810 nm, and 1013 nm and 3390 nm, which yielded coincidence-to-accidental ratios of 6.2 and 6.5, respectively. We believe that our novel correlated light source with two separate pairs in the visible and infrared region complements a wide-range of multi-dimensional quantum infrared processing applications.</p>
Teleseismic P records and ambient noise cross-correlations from a dense ocean-bottom seismometer array at Hyuga-nada
<p><strong>Telesesimic P and ambient noise cross-correlation dataset from a dense OBS array at Hyuganada, SW Japan. </strong> The dataset are used in a manuscript titled 'Shallow low-velocity layer in the Hyuga-nada accretionary prism and its hydrological implications: insights from a passive seismic array', which is submitted to the Journal of Geophysical Research: Solid Earth. It also contains necessary data for reproducing inversion analysis performed in the manuscript. </p> <ol> <li><em>Teleseismic_P.tar.gz</em>: contains teleseismic P wave forms in SAC format </li> <li><em>Noise_cross_corr.tar.gz</em>: contains ambient noise cross-correlation functions in SAC format</li> <li><em>Reproduce.tar.gz</em>: dataset for reproducing inversion analysis. <pre><code class="language-bash"># Example shell script for reproduce inversion results HDA01 cd Reproduce/INV/HDA01 mpirun -np 20 joint_inv joint_inv.in</code></pre> <p>The SEIS_FILO software (https://doi.org/10.5281/zenodo.6330840) is required for this reproduction.</p> </li> </ol>
Correlates of protection and viral load trajectories in omicron breakthrough infections in triple vaccinated healthcare workers
<p>Source data to figure 2-S1 and table S1 in manuscript entitled <strong><em>Correlates of protection and viral load trajectories in omicron breakthrough infections in triple vaccinated healthcare workers</em>, </strong>Nature Communications, 2023.<strong> </strong></p>
FIG. 3 in Body Color and Morphological Correlates of Fitness in Eastern Fence Lizards (Sceloporus undulatus): A Spectrophotometric Approach
FIG. 3.—Significant regressions of abdominal body color against morphometric traits for female Eastern Fence Lizards (Sceloporus undulatus) collected in 2013 from Dauset Trails Nature Center (Butts County, GA). (A) Ventral UV chroma X snout-vent length (SVL), (B) ventral UV chroma X body condition, (C) ventral blue chroma X body condition, (D) dorsal hue X SVL, (E) dorsal UV chroma X SVL. Female dorsal hue was not normally distributed and did not normalize following transformation. Data for dorsal UV chroma were normalized using reciprocal transformations (see Methods), but the untransformed data are presented here for simplicity.
FIG. 2 in Body Color and Morphological Correlates of Fitness in Eastern Fence Lizards (Sceloporus undulatus): A Spectrophotometric Approach
FIG. 2.—Significant regressions of abdominal body color against morphometric traits for male Eastern Fence Lizards (Sceloporus undulatus) collected in 2013 from Dauset Trails Nature Center (Butts County, GA). (A) Ventral UV chroma X snout-vent length (SVL), (B) ventral blue chroma X SVL, (C) ventral blue chroma X patch area, (D) dorsal UV chroma X SVL. Values for UV chroma in panels A and D are depicted following a natural logarithmic transformation.
FIG. 1 in Body Color and Morphological Correlates of Fitness in Eastern Fence Lizards (Sceloporus undulatus): A Spectrophotometric Approach
FIG. 1.—Body coloration in adult Eastern Fence Lizards (Sceloporus undulatus) at 36°C. (A) Photographs of representative examples of male and female body color. (B) Mean spectral reflectance curves (males, n ¼ 28; females, n ¼ 12) of dorsal and ventral abdominal coloration. Solid brown line ¼ male dorsum; solid blue line ¼ male venter; dotted brown line ¼ female dorsum; dotted black line ¼ female venter. Spectral reflectance data from Stephenson et al. (2017). Republished with permission of the Linnean Society of London.
FIGURE 3. Correlation between the genetic p in Complete Mitochondrial genome of Eisenia nordenskioldi pallida Malevich, 1956 from Korea, with remarks on the phylogeny of the E. nordenskiodi complex (Megadrili; Lumbricidae)
FIGURE 3. Correlation between the genetic p-distances of the barcoding region (cox1) and the 13PCGs of the E. nordenskioldi s.l. taxa.
Корреляционные паттерны (Correlation patterns)
<p>Aрхив содержит графическое представление корреляционных паттернов блокирования для ноября, декабря, января, февраля. Для двух периодов 1979-1999 (первый период) и 2000-2020 (второй период). IBF50 для южного режима, IBF60 для северного режима.</p> <p>Сектора показаны в: https://doi.org/10.5281/zenodo.7489504</p> <p>The archive contains a graphical representation of blocking correlation patterns (CP) for November, December, January, February. For two periods 1979-1999 (first period) and 2000-2020 (second period). IBF50 for south mode, IBF60 for north mode.</p> <p>Sectors are shown at https://doi.org/10.5281/zenodo.7489504</p>
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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.