Find research datasets worth reusing

opencc-by-4.0Dec 2022View details →

Text-fig. 1. The Catefica exposure along the road between Catefica and Mugideira photographed in 1989 when the mesofossil flora was discovered. The exposed strata are mainly cross-bedded light colored sands, darker horizons of clay and dark lenses with mesofossils. The most productive sample, Catefica sample 49, was collected in the basal part of the exposed sequence (arrow head). One of the authors (PRC) exploring the middle part of the section. Photo K. R. Pedersen. in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms

Text-fig. 1. The Catefica exposure along the road between Catefica and Mugideira photographed in 1989 when the mesofossil flora was discovered. The exposed strata are mainly cross-bedded light colored sands, darker horizons of clay and dark lenses with mesofossils. The most productive sample, Catefica sample 49, was collected in the basal part of the exposed sequence (arrow head). One of the authors (PRC) exploring the middle part of the section. Photo K. R. Pedersen.

opencc-by-4.0Dec 2022View details →

Text-fig. 28. Scanning electron microscope (SEM) images of stamens and pollen of Endressistemon cateficensis gen. et sp. nov.; Catefica locality, Portugal. a, b) Staminal structure with two lateral stamens and one median structure seen in ventral and dorsal view (orientation unknown) showing that each stamen has a prominent apical extension and two pairs of pollen sacs separated by a narrow connective; both stamens are borne on a common base together with the median structure and their anthers are sessile on the common stalk; note the apical projection of the median structure (asterisk) between the two stamens and the ribs over probable vascular bundles that extend from the common base into the apical projections of both stamens and the median structure (arrows); c) Staminal structure showing two stamens with prominent apical projections and median axis-like structure between the two stamens (arrow); d) Staminal structure showing two stamens with prominent apical projections borne on a common base; e) Staminal structure in (a) and (b), from the same orientation as (b), showing the ribs over probable vascular bundles (yellow) that extend into the apical projections; f) Detail of staminal structure in (a) and (b) showing the fused or strongly adhering apical projections of the two lateral stamens and the median structure (asterisk); g) Monocolpate, reticulate pollen grains from the pollen sacs of stamen in (d). Specimens, Catefica 49-S107778 (holotype, a, b, e, f), Catefica 49-S107769 (c), Catefica 49-S107751 (d, g). Scale bars = 600 Μm (a–d), 300 Μm (e), 100 Μm (f), 6 Μm (g). in The Early Cretaceous Mesofossil Flora Of Catefica, Portugal: Angiosperms

Text-fig. 28. Scanning electron microscope (SEM) images of stamens and pollen of Endressistemon cateficensis gen. et sp. nov.; Catefica locality, Portugal. a, b) Staminal structure with two lateral stamens and one median structure seen in ventral and dorsal view (orientation unknown) showing that each stamen has a prominent apical extension and two pairs of pollen sacs separated by a narrow connective; both stamens are borne on a common base together with the median structure and their anthers are sessile on the common stalk; note the apical projection of the median structure (asterisk) between the two stamens and the ribs over probable vascular bundles that extend from the common base into the apical projections of both stamens and the median structure (arrows); c) Staminal structure showing two stamens with prominent apical projections and median axis-like structure between the two stamens (arrow); d) Staminal structure showing two stamens with prominent apical projections borne on a common base; e) Staminal structure in (a) and (b), from the same orientation as (b), showing the ribs over probable vascular bundles (yellow) that extend into the apical projections; f) Detail of staminal structure in (a) and (b) showing the fused or strongly adhering apical projections of the two lateral stamens and the median structure (asterisk); g) Monocolpate, reticulate pollen grains from the pollen sacs of stamen in (d). Specimens, Catefica 49-S107778 (holotype, a, b, e, f), Catefica 49-S107769 (c), Catefica 49-S107751 (d, g). Scale bars = 600 Μm (a–d), 300 Μm (e), 100 Μm (f), 6 Μm (g).

opencc-by-4.0Feb 2023View details →

Dataset related to the responses of eggplant plants to Bemisia Tabaci whitefly in presence of one of its natural enemies, the Macrolophus pygmaeus plant bug

This dataset assesses the response of eggplant plants to 3 conditions: noninfested control plants, plants infested by Bemisia tabaci whitefly, and plants infested by Bemisia tabaci where Macrolophus pygmaeus plant bug was also released. The data of the various parameters relating to the responses of the different eggplant plants to the three tested conditions were analyzed using a one-way ANOVA. Where significant differences were detected, the means were separated by Tukey’s HSD test (p < 0.05). Statistical analysis was carried out using the program Statistica (StatSoft, TIBCO Software Inc., Tulsa, OK, USA). The provided dataset was used in the investigation of whether the Macrolophus pygmaeus (Hemiptera: Miridae) plant bug can mitigate the damage caused to plants by the Bemisia tabaci whitefly (Hemiptera: Aleyrodidae). A discussion and interpretation of the data, as well as subsequent results, is provided in the scientific publication <a href="https://zenodo.org/record/7660447#.Y_Soh3aZObg">"Can Macrolophus pygmaeus (Hemiptera: Miridae) Mitigate the Damage Caused to Plants by Bemisia tabaci (Hemiptera: Aleyrodidae)?"</a>, published in the <a href="https://www.mdpi.com/2075-4450/14/2/164">Insects</a> journal.  This research was conducted within the VIRTIGATION project, which is part of the EU Open Research Data pilot. This project has received funding from the European Union’s Horizon 2020 research and innovation program under grant agreement No. 101000570.

opencc-by-4.0Feb 2023View details →

One scaffold, two conformations: The ring-flip of the messenger InsP8 occurs under cytosolic conditions

Inositol poly- and pyrophosphates (InsPs and PP-InsPs) are central eukaryotic messengers. These very highly phosphorylated molecules can exist in two distinct conformations, a canonical one with five phosphoryl groups in equatorial positions, and a “flipped” axial conformation. Using 13C-labeled InsPs / PP-InsPs, the behavior of these molecules was investigated by 2D-NMR under solution conditions reminiscent of a cytosolic environment. Remarkably, the most highly phosphorylated messenger InsP8 readily adopts both conformations at physiological conditions. Environmental factors - such as pH, metal cation composition, and temperature - strongly influence the conformational equilibrium. Thermodynamic data revealed that the transition of InsP8 from the equatorial to the axial conformation is, in fact, an exothermic process. The speciation of InsPs and PP-InsPs also affects their interaction with protein binding partners; addition of Mg2+ decreased the binding constant Kd of InsP8 to an SPX protein domain. The results illustrate that PP-InsP speciation reacts very sensitively to solution conditions, suggesting it might act as an environment-dependent molecular switch.

dryad40/100

Data from: Seasonality and growth in tropical freshwater ectotherm vertebrates: results from one-year experimentation in the African grey bichir, giraffe catfish, and the West African mud turtle

Growth in ectotherm vertebrates is strongly rhythmed by seasonal variation in environmental parameters. To track the seasonal variation in ancient times in a continental and tropical context, we aim to develop a method based on the use of the growth rate of fossil ectotherm vertebrates (actinopterygians and chelonians) influenced by seasonal environmental fluctuations they experienced in their lifetime. However, the impact of environmental parameters on growth, positive or negative, and its intensity, depends on the taxa considered and data are scarce for tropical species. For one year, an experiment was conducted to better understand the effect of seasonal variation in environmental parameters (food abundance, temperature, and photoperiod) on the somatic growth rate of three species of tropical freshwater ectotherm vertebrates: the fishes Polypterus senegalus and Auchenoglanis occidentalis and the turtle Pelusios castaneus. Mimicking seasonal shifts expected to be experienced by the animals in the wild, the experiment highlighted the preponderant effect of food abundance on the growth rate of those three species. Water temperature variation had a significant effect on the growth rate of Po. senegalus and Pe. castaneus. Moreover, the photoperiod demonstrated no significant effect on the growth of the three species. The duration of application of starvation or cool water conditions, ranging from 1 to 3 months, did not affect the growth rate of the animals. However, Pe. castaneus showed a temporary sensitivity to the return of ad libitum feeding or of warm water, after a period of starvation or cool water, by a period of compensatory growth. Finally, this experiment revealed, in the three species, fluctuations in the growth rate under controlled and constant conditions. This variation, similar to the variation in precipitation and temperature observed in their native environment, could be linked to a strong effect of an internal rhythm controlling somatic growth rate.

opencc-zeroMar 2023View details →

opencc-by-4.0Feb 2023View details →

MERICS Podcast: Ukraine one year on, with Helena Legarda and Jakub Jakóbowski

On February 24, 2022 Russia started a full-scale invasion of Ukraine – escalating a territorial conflict that has been simmering since the occupation of Crimea and the Donbas region in 2014. The Kremlin’s aims of a swift occupation of Ukraine did not materialize and after 12 months of aerial bombardments, civilian suffering and trench warfare, Ukraine is still defending its country and the West is still keeping up sanctions and support for Ukraine.  This episode looks at China’s role in the conflict and its impact in China’s global standing and agency. Johannes Heller-John discusses these issues with Helena Legarda, Lead Analyst at MERICS, and Jakub Jakóbowski, Deputy Director of the Centre for Eastern Studies (OSW) in Warsaw.  Since the recording of the episode a 12-point Chinese peace plan has been put forth. Accordingly, its contents do not feature in the discussion.

Data set for Wireless SAWR sensors: FFT, EMD or wavelets for the frequency estimation in one shot?

This data set is the basis for the publication "Wireless SAWR sensors: FFT, EMD or wavelets for the frequency estimation in one shot?", submitted to Journal of Sensors and Sensor Systems. It contains the following data: - "Scipioni_JSSS23_Fig5_WaveletChoice.txt" contains results to obtain the best wavelet for this study. For this, a SAWR (Fig. 3a) signal is noised by an additive Gaussian white noise with different SNR values. The signal is then denoised by wavelets for each SNR value. Results are the new SNR values after denoising. - "Scipioni_JSSS23_Fig9_to_15_F_Ref.txt" contains all the frequencies around F=10700 MHz chosen to test the three methods: Fourier, wavelets, EMD. - 10 files "Scipioni_JSSS23_Fig10_to_14_SAW_EMDvsWavelet_FRef_XX_Occ_100.txt" contain results of the frequency and uncertainty measurement for each noisy SAWR signal versus frequencies and SNR values. - 3 files "Scipioni_JSSS23_Fig17_Tab2_3_Experimental SAWR signal_NoX" contain the values of 3 different experimental SAWR signals.

Data and source code for "Spherical Air Mass Factors in One and Two Dimensions with SASKTRAN 1.6.0"

Supplementary data for "Spherical Air Mass Factors in One and Two Dimensions with SASKTRAN 1.6.0": <ul> <li>source: source code and data required to reproduce all figures</li> <li>amf-tables: data in NETCDF4 format for the air mass factor tables discussed in Section 5, which were used in the following publications by Griffin et al.: <ul> <li>"High-Resolution Mapping of Nitrogen Dioxide With TROPOMI: First Results and Validation Over the Canadian Oil Sands" (2018, <a href="https://doi.org/10.1029/2018GL081095">https://doi.org/10.1029/2018GL081095</a>)</li> <li>"Biomass burning nitrogen dioxide emissions derived from space with TROPOMI: methodology and validation" (2021, <a href="https://doi.org/10.5194/amt-2021-223">https://doi.org/10.5194/amt-2021-223</a>)</li> </ul> </li> </ul>

One meter integrated depth velocity (total, ageostrophy, Ekman and Stokes components) fields for the Mediterranean Sea each 6 hours (from 2007 to 2018)

One meter integrated depth surface velocity fields for the Mediterranean Sea from January 2007 to June 2018 calculated following the methodology in Morales-Marquez et al.(2020). This dataset provides the total velocity field, the ageostrophic, Ekman and Stokes components.

One meter integrated depth velocity (total, ageostrophy, Ekman and Stokes components) fields for the Mediterranean Sea each 6 hours (from 2005 to 2006)

One meter integrated depth surface velocity fields for the Mediterranean Sea from January 2005 to January 2006 calculated following the methodology in Morales-Marquez et al.(2020). This dataset provides the total velocity field, the ageostrophic, Ekman and Stokes components.

FIG. 9 in Taxonomy and phylogenetic analysis reveal one new genus and three new species in Inonotus s.l. (Hymenochaetaceae) from Brazil

FIG. 9. — Tropicoporus tropicalis (M.J.Larsen & Lombard) L.W.Zhou & Y.C.Dai and T. stratificans G.Coelho & Yurchenko: A, T. tropicalis basidioma of URM94078 in situ; B, vertical section of URM94078; C, setae of URM94078 in 3% KOH; D, basidiospores of URM94078 in 3% KOH; E, dried T. stratificans basidioma of URM94063; F, tube trama of URM94063 in CB, immersed rhomboid crystals; G, hymenial setae of URM94063 in 3% KOH; H, basidiospores of URM94063 in 3% KOH. Scale bars: A, B, 5 cm; C, 1 cm; D, 5 mm;

FIG. 8 in Taxonomy and phylogenetic analysis reveal one new genus and three new species in Inonotus s.l. (Hymenochaetaceae) from Brazil

FIG. 8. — Tropicoporus nullisetus Xavier de Lima, V.R.T. Oliveira & Gibertoni, sp. nov. Holotype (URM94073): A, B, basidioma in situ; C, longitudinal section and the black line bellow the tomentum; D, pore surface; E, origin and end of a skeletal hyphae from the tube trama in 3% KOH; F, basidiospores in 3% KOH; G, cystidioles in CB; H, basidiospores in water. Scale bars: A, B, 5 cm; C, 1 cm; D, 5 mm; E-H, 10 μm.

FIG. 7 in Taxonomy and phylogenetic analysis reveal one new genus and three new species in Inonotus s.l. (Hymenochaetaceae) from Brazil

FIG. 7. — Tropicoporus linteus (Berk. & M.A.Curtis) L.W.Zhou & Y.C.Dai: A, dried basidiomata of URM84512; B, longitudinal section of URM84512, black line below the tomentum; C, pileus surface of URM94076; D, pileus surface of URM94048; E, hymenial setae of URM84512 in 3% KOH; F, basidiospores of URM84512 in 3% KOH; Scale bars: A, 2cm; B-D, 1 cm; E, F, 10 μm.

FIG. 6. — Tropicoporus flabellatus V.R.T. Oliveira, J.R.C in Taxonomy and phylogenetic analysis reveal one new genus and three new species in Inonotus s.l. (Hymenochaetaceae) from Brazil

FIG. 6. — Tropicoporus flabellatus V.R.T. Oliveira, J.R.C. Oliveira-Filho, Xavier de Lima & Gibertoni, sp. nov. (URM94338): A, dried basidiomata; B, longitudinal section, red arrow pointing to the black line in the context; C, pore surface; D, hymenial setae; E, basidiospores; F, generative hypha with basidia at the end; G, skeletal hypha of the tube trama; H, hyphae of the black line in the context; I, hyphae of the tomentum. All preparations in 3% KOH. Scale bars: A, B, 1cm; C, 5 mm; D-I, 10 μm

FIG. 5 in Taxonomy and phylogenetic analysis reveal one new genus and three new species in Inonotus s.l. (Hymenochaetaceae) from Brazil

FIG. 5. — Sclerotus extensus (Lév.) Xavier de Lima: A, dried basidiomata of URM87072; B, dried basidiomata of URM89390; C, longitudinal section of the dried basidioma of URM89538, red arrows pointing the black line in the context; D, skeletal of the context in 3% KOH; E, hymenial setae (URM89538) in 3% KOH; F, basidiospores (URM89538) in 3% KOH. Scale bars: A-C, 1 cm; D-F, 10 μm.

FIG. 4. — Inonotus parvisetus V.R.T in Taxonomy and phylogenetic analysis reveal one new genus and three new species in Inonotus s.l. (Hymenochaetaceae) from Brazil

FIG. 4. — Inonotus parvisetus V.R.T. Oliveira, Xavier de Lima, Gibertoni, sp. nov. (URM94334): A, B, dried basidiomata of the holotype; C, pore surface; D, longitudinal section of the dried basidioma, red arrow pointing the black line in the context; E, tramal setae; F, basidiospores; G, generative hyphae of the context. All preparations in 3% KOH. Scale bars: A, B, 1 cm; C, 1 mm; D, 5 mm; E-G, 10 μm.

FIG. 2 in Taxonomy and phylogenetic analysis reveal one new genus and three new species in Inonotus s.l. (Hymenochaetaceae) from Brazil

FIG. 2. — Phylogeny of Inonotus clade from ITS sequences. Topology is from ML analysis, with BT/PP values at the nodes. Only BT above 75% and/or PP above 0.95 are shown. Newly generated sequences are in boldface.

FIG. 1 in Taxonomy and phylogenetic analysis reveal one new genus and three new species in Inonotus s.l. (Hymenochaetaceae) from Brazil

FIG. 1 (continuation). — [...] values at the nodes. Only BT above 75% and/or PP above 0.95 are shown. Newly generated sequences are in boldface.

FIG. 1 in Taxonomy and phylogenetic analysis reveal one new genus and three new species in Inonotus s.l. (Hymenochaetaceae) from Brazil

FIG. 1. — Phylogeny of Hymenochaetaceae, with focus on Inonotus clade, inferred from ITS and LSU sequences. Topology is from ML analysis, with BT/PP [...]

FIG. 3 in Taxonomy and phylogenetic analysis reveal one new genus and three new species in Inonotus s.l. (Hymenochaetaceae) from Brazil

FIG. 3. — Inonotus micantissimus (Rick) Rajchemb. (URM90186): A, pore surface; B, tramal setae; C, hymenial setae; D, basidiospores. I. rickii (Pat.) Reid (URM94336): E, aspect of the anamorphous stage; F, tramal setae and chlamydospores. All preparations in 3% KOH. Scale bars: A, 1 mm; B, C, F, 20 μm; E, 1 cm.