Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
31
datasets available to search
ShareScore release 0.9.0
Dataset results
31 results for “phase variation”
Experimental Investigation of the Bubble Size Distribution in a Mini Plant Batch Bubble Column With Variation of Gas Flux, Bubble Column Height and Composition of the Liquid Phase
<p>This data set contains bubble size distributions (BSD) measured in a dN = 100 mm mini-plant batch bubble column. The BSD were measured using the optical multimode online probe. The liquid holdup, the feed gas volume flow rate/flux, the composition of the liquid phase (water or aqueous solutions of NaCl, EtOH, glycerol or Na2SO3) and the measuring position in the bubble column were varied. </p>
Accumulation of gene copy number variations during the early phase of free-spawning abalone speciation
<p><span>The g</span><span>enetic basis of speciation in free-spawning marine invertebrates is poorly understood. Although gene copy number variations (GCNVs) as well as nucleotide variations possibly trigger the speciation of these organisms, empirical evidence for such </span><span>a hypothesis</span><span> is limited. In this study, we searched for genomic signatures of GCNVs that may contribute to the speciation of Western Pacific abalone species. Whole-genome sequencing data suggested the existence of significant amounts of GCNVs in closely related abalones, <em>Haliotis discus</em> and <em>H. madaka</em>, in the early phase of speciation. In addition, the degree of interspecies genetic differentiation in the genes where GCNVs were estimated was higher than </span><span>that </span><span>in other genes, suggesting that nucleotide divergence also accumulate</span><span>s in the genes with GCNVs.</span><span> GCNVs in some genes were also detected in other related abalone species, suggesting that these GCNVs are derived from both ancestral and <em>de novo</em> mutations.</span> <span>Our findings </span><span>suggest that GCNVs have been accumulated in </span><span>the early phase</span><span> of free-spawning abalone speciation.</span></p>
Accumulation of gene copy number variations during the early phase of free-spawning abalone speciation
Open the record for dataset details and reuse information.
Data from: Variation in two phases of post-winter development of a butterfly
The temporal aspects of life cycle characteristics, such as diapause development, are under strong selection in seasonal environments. Fine-tuning of the life cycle may be particularly important to match the phenology of potential mates and resources as well as for optimizing abiotic conditions at eclosion. Here, we experimentally study the spring phenology of the orange tip butterfly, Anthocharis cardamines, by analysing post-winter pupal development in three populations along a latitudinal cline in each of Sweden and the United Kingdom. These countries differ substantially in their seasonal temperature profile. By repeatedly recording pupal weights, we established that post-winter development has two separate phases, with a more rapid weight loss in the second phase than in the first, likely corresponding to a ramping up of the rate of development. Variation in the duration of the first phase contributed more strongly than the second phase to the differences in phenology between the localities and sexes. We found that insects from Sweden had a faster overall rate of development than those from the United Kingdom, which is consistent with countergradient variation, as Sweden is colder during the spring than the United Kingdom. Similar trends were not observed at the within-country scale, however. A cogradient pattern was found within Sweden, with populations from the north developing more slowly, and there was no clear latitudinal trend within the United Kingdom. In all localities, males developed faster than females. Our results point to the importance of variation in the progression of post-winter development for spring phenology.
Supplementary material 1 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Supplementary material 1 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Composition variations in Cu(In,Ga)(S,Se)2 solar cells: not a gradient, but an interlaced network of two phases
<p><strong>Abstract</strong></p> <p>Record efficiency in chalcopyrite-based solar cells Cu(In,Ga)(S,Se)<sub>2</sub> is achieved using a gallium gradient to increase the band gap of the absorber towards the back side. Although this structure has successfully reduced recombination at the back contact, we demonstrate that in industrial absorbers grown in the pilot line of Avancis, the back part is a source of non-radiative recombination. Depth-resolved photoluminescence (PL) measurements reveal two main radiative recombination paths at 1.04 eV and 1.5-1.6 eV, attributed to two phases of low and high band gap material, respectively. Instead of a continuous change in the band gap throughout the thickness of the absorber, we propose a model where discrete band gap phases interlace, creating an apparent gradient. Cathodoluminescence and Raman scattering spectroscopy confirm this result.</p> <p>Additionally, deep defects associated to the high gap phase reduce the absorber performance. Etching away the back part of the absorber leads to an increase of one order of magnitude in the PL intensity, i.e., 60 meV in quasi Fermi level splitting. Non-radiative voltage losses correlate linearly with the relative contribution of the high energy PL peak, suggesting that reducing the high gap phase could increase the open circuit voltage by up to 180 mV.</p>
Data from: Variation in two phases of post-winter development of a butterfly
Open the record for dataset details and reuse information.
Data from: Demographic processes shaping genetic variation of the solitarious phase of the desert locust
Open the record for dataset details and reuse information.
Fig 11 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Fig 11 Nymphal development in G1 Locusta migratoria reared at LD 12:12 h (A) and LD 16:8 h (B) and the ratios of nymphal development at LD 16:8h to that at LD 12:12 h (C) plotted against the latitudes. Red and green symbols indicate females and males, respectively. N indicates sample size based on Suppl. material 1: table S9. **, p < 0.01.
Fig 10 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Fig 10 Body weight of hatchlings from eggs laid by G0 and G1 Locusta migratoria females. Each N is based on 51–443 hatchlings (mean = 190.8). N indicates the number of populations (see Suppl. material 1: table S8). Correlations are insignificant at the 5% level.
Fig 9 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Fig 9 Numbers of ovarioles in field-collected and lab-reared Locusta migratoria females plotted against the latitudes (A), generations (B), and head widths of females of the parental generation, (C) and the proportions of functional ovarioles (no. of eggs / no. of ovarioles) plotted against the latitudes in field-collected females (D). **, p < 0.01; ***, p < 0.001. G0, field-collected generation; G1, 1st lab-reared generation; G2, 2nd lab-reared generation. Mean numbers of ovarioles (± SD) among generations in (B) are compared with the Tukey's multiple comparison test. Different letters indicate significant differences at the 5% level. Data are based on Suppl. material 1: table S6.
Fig 6 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Fig 6 Geographic variation in head widths of Locusta migratoria adults reared at LD 12:12 h or LD 16:8 h (30°C) in the first 3 laboratory generations. Red and green symbols showing means per cage indicate females and males, respectively. Data are based on Suppl. material 1: table S3.
Fig 13 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Fig 13 The growth efficiencies, as determined by adult head width/duration of nymphal development, plotted against the latitudes (A) and correlation between adult head widths of G0 and growth efficiencies of G1 at LD 12:12 h (B) or LD 16:8 h (C) in Locusta migratoria. N indicates sample sizes. **; p < 0.01; ***, p< 0.0001. Red and green symbols indicate females and males, respectively. In (A) the quadrat equation is y = -0.0003x2 + 0.0248x - 0.1684 in females and y = -0.0003x2 + 0.0248x - 0.1684 in males. Data are based on Suppl. material 1: tables S9, S10.
Fig 14 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Fig 14 F/C (hind femur length / head width) and E/F (forewing length/hind femur length) ratios of Locusta migratoria adults collected in the field (G0) and those reared at LD 12:12 h (G1–G3). Red and green symbols indicate females and males, respectively. Symbols in (A) and (E) indicate the mean of each population and those in (B–D, F–H) indicate the mean of individuals per cage. Data are based on Suppl. material 1: tables S2, S3. *, p < 0.05; **; p < 0.01; ***, p < 0.0001.
Fig 3 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Fig 3 Geographic variation in head widths (mean ± SD) of Locusta migratoria adults collected at various latitudes. Top and bottom diagrams illustrate the phylogenetic origin (Tokuda et al. 2010) and number of generations per year (as shown in Fig. 2). Red and green symbols indicate females and males, respectively. r indicates the correlation coefficient within each zone (see Suppl. material 1: table S3). *, p < 0.05; **, p < 0.01. Data are based on Suppl. material 1: table S2.
Fig 1 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Fig 1 Collection sites of Locusta migratoria in Japan. Numbers indicate the sites where locusts were collected. For the names of the sites, see Suppl. material 1: table S1.
Fig 16 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Fig 16 Relationships between male and female head widths of field-collected Locusta migratoria adults. The dashed line indicates similar body sizes of both sexes. Data are based on Suppl. material 1: table S2.
Fig 8 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Fig 8 Relationships between numbers of eggs per pod, egg pod widths, and head widths of Locusta migratoria female parents collected in the field. *, p < 0.05; ***, p < 0.001. Orange and white symbols indicate populations of the north and south clades, respectively. Data are based on Suppl. material 1: table S5.
Fig 2 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Fig 2 Diagram showing compositions of Locusta migratoria populations with 1, 2 and 3 or more generations per year based on various sources (H. Tanaka 1982, Hakomori and Tanaka 1992, Tanaka 1994, Shimizu et al. 2012, Tanaka 2022).
Fig 15 from: Tanaka S (2024) Geographic variation in body size of the migratory locust Locusta migratoria (Orthoptera, Acrididae): Masaki's cline and phase polyphenism. Journal of Orthoptera Research 33(1): 27-40. https://doi.org/10.3897/jor.33.107242
Fig 15 Changes in mean F/C (hind femur length/head width) and E/F (forewing length/hind femur length) ratios of adults across generations in Locusta migratoria. Sample sizes in G0–3 are 29, 30, 27 and 26 in (A) and (C) and 29, 31, 24 and 19 in (B) and (D). Locusts were reared in a group in G1–G3 at 30°C under LD12:12h or LD 16:8h. White and gray histograms indicate females and males, respectively. Different letters indicate significant differences in mean values with the Steel-Dwass test (p < 0.05). Data are based on Suppl. material 1: tables S2, S3.
ScienceDex guides
Understand access before you commit
These curated guides explain access requirements, typical timelines, costs, and reuse considerations for widely used research datasets.
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.