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2,474 results for “Northeast”
Fig. 38 in A revision and one new species of Begonia L. (Begoniaceae, Cucurbitales) in Northeast India
Fig. 38. Map showing the location of B. lushaiensis C.E.C.Fisch. specimens.
Fig. 41 in A revision and one new species of Begonia L. (Begoniaceae, Cucurbitales) in Northeast India
Fig. 41. Map showing the location of B. obversa C.B.Clarke specimens.
Fig. 33 in A revision and one new species of Begonia L. (Begoniaceae, Cucurbitales) in Northeast India
Fig. 33. Map showing the location of B. koelzii R.Camfield sp. nov. specimens.
Fig. 25 in A revision and one new species of Begonia L. (Begoniaceae, Cucurbitales) in Northeast India
Fig. 25. Map showing the location of B. griffithiana (A.DC.) Warb. specimens.
Fig. 5 in A new deepwater species of Calliopiidae, Halirages helgae (Crustacea, Amphipoda), with a synoptic table to Halirages species from the northeast Atlantic
Fig. 5. Halirages helgae sp. nov., holotype, ♀, 10 mm long. A. Gnathopod 1. B. Gnathopod 2.
Data from: Convergent evolution of niche structure in Northeast Pacific kelp forests
<ol> <li>Much of the morphological and ecological diversity present on earth is believed to have arisen through the process of adaptive radiation. Yet, this is seemingly at odds with substantial evidence that niches tend to be similar among closely related species (i.e., niche conservatism). Identifying the relative importance of these opposing processes in driving niche evolution under different circumstances is therefore essential to our understanding of the interaction between ecological and evolutionary phenomena.</li> <li>In this study, we make use of recent advances in our understanding of the phylogeny of kelps (Laminariales) to investigate niche evolution in one of the most ecologically significant groups of benthic habitat-forming organisms on the planet. We quantify functional traits and use community sampling data from a kelp diversity hotspot to determine which traits are responsible for the habitat (β) niche of kelps and whether they are labile or conserved across the kelp phylogeny. </li> <li>We find that combinations of functional traits have evolved convergently across kelp subclades and that these functional traits are significant predictors of community structure. Specifically, traits associated with whole-kelp structural reinforcement and material properties were found to be significantly correlated with species distributions along a gradient of wave disturbance and thus predict the outcome of environmental filtering. However, kelp assemblages were made up of species that are more phylogenetically distinct than expected (i.e., phylogenetic overdispersion), suggesting that niche partitioning along this gradient of wave disturbance has been an important driver of divergence between close relatives.</li> <li>These results are consistent with the hypothesis that environmental filtering associated with wave disturbance plays an essential role in determining the habitat niche of kelps across local communities and further suggest that this process can drive phenotypic divergence and niche partitioning between close relatives. We propose that parallel adaptive radiation of kelp subclades has shaped the diversity and species composition of kelp forests in the Northeast Pacific and we discuss how evidence from the literature on incipient or ongoing speciation events support this hypothesis.</li> </ol>
Heat stress responses of the kelp Laminaria digitata (Phaeophyceae) across Northeast Atlantic populations: growth, biochemistry, chlorophyll fluorescence, pigments
<p>To understand the thermal plasticity of a coastal foundation species across its latitudinal distribution, we assess physiological responses to high temperature stress in the kelp <i>Laminaria digitata</i> in combination with population genetic characteristics and relate heat resilience to genetic features and phylogeography. We hypothesize that populations from Arctic and cold-temperate locations are less heat resilient than populations from warm distributional edges. Using meristems of natural <i>L. digitata</i> populations from six locations ranging between Kongsfjorden, Spitsbergen (79°N), and Quiberon, France (47°N), we performed a common-garden heat stress experiment applying 15°C to 23°C over eight days. We assessed growth, photosynthetic quantum yield, carbon and nitrogen storage, and xanthophyll pigment contents as response traits. Population connectivity and genetic diversity were analysed with microsatellite markers. Results from the heat stress experiment suggest that the upper temperature limit of <i>L. digitata</i> is nearly identical across its distribution range, but subtle differences in growth and stress responses were revealed for three populations from the species' ecological range margins. Two populations at the species' warm distribution limit showed higher temperature tolerance compared to other populations in growth at 19°C and recovery from 21°C (Quiberon, France), and photosynthetic quantum yield and xanthophyll pigment responses at 23°C (Helgoland, Germany). In <i>L. digitata</i> from the northernmost population (Spitsbergen, Norway), quantum yield indicated the highest heat sensitivity. Microsatellite genotyping revealed all sampled populations to be genetically distinct, with a strong hierarchical structure between southern and northern clades. Genetic diversity was lowest in the isolated population of the North Sea island of Helgoland and highest in Roscoff in the English Channel. All together, these results support the hypothesis of moderate local differentiation across <i>L. digitata</i>'s European distribution, whereas effects are likely too weak to ameliorate the species' capacity to withstand ocean warming and marine heatwaves at the southern range edge.</p>
Diagram of apparent resistivity phase curves of magnetotelluric in Songliao Basin, Northeast China
<p>The research area is located at an expanse of 120,000 square kilometers in northeastern China, including Heilongjiang Province, Jilin Province, and Liaoning Province (about 123°-127° east longitude and about 45°-49° north latitude). The basin is divided into five primary structural units according to the distribution and development characteristics of the fault depressions, namely; the central depression zone , the southeast uplift zone , the northeast uplift zone ,the northern plunge zone , and the west slope zone . Multiple secondary fault depressions and fault uplifts lie inside. This work used a total of 157 broadband magnetotelluric sounding data points. MTU-5 magnetotelluric instruments produced by Phoenix Geophysics of Canada were used for field collection of magnetotelluric sounds and the effective frequency band was 320~0.0005 Hz. The poles were arranged according to the tensor measurement method. Each measuring point measures 5 components, 3 of them being magnetic field components while the other 2 are mutually orthogonal horizontal electric field components. The signal acquisition time was about 20 hours and the average point distance was 10 km. This is a diagram of apparent resistivity phase curves including every broadband magnetotelluric sounding data points.</p>
Homology analysis of HCV sequences obtained from a dialysis unit of northeast India
<p>This is a homology analysis (by DNASTAR MegaAlign Version 5.00) of 29 HCV Sequences (5'UTR-Core region sequencing) obtained from a dialysis unit of a tertiary care teaching hospital in northeast India. It is a part of a manuscript titled- "Circulation of an atypical hepatitis C virus (HCV) strain in a dialysis unit in northeast India". </p>
Life history traits and abundance of Northeast Atlantic fish
<p>Life history characteristics such as asymptotic length <i>L</i><sub><i>∞</i></sub>, growth rate<i> K</i>, the length at which 50% of the individuals have reached maturity <i>L</i><sub><i>mat</i></sub>, and natural mortality <i>M</i> are therefore often used to indicate the sensitivity of different species to fishing. When species-specific information is missing, an estimate of the maximum length<i> L<sub>max</sub></i> of a species can be used to infer asymptotic length, growth rate, natural mortality, and proportion mature at length. Here, we provide a data base containing life history parameters of 271 species along with the references of these values and gear efficiency estimates for all species. Further, we provide average annual catch indices within inhabitated areas for each species. </p> <p> </p> <p> </p>
Data from: Age-appropriate vaccination coverage and its associated factors for pentavalent 1-3 and measles vaccine doses, in northeast Ethiopia: A community-based cross-sectional study
Background: In Ethiopia, there are no studies on age-appropriate vaccinations that children received at the recommended specific ages. Therefore, we assessed age appropriate vaccination coverage and its associated factors among children 12 to 23 months of age in Menz Lalo district, northeast Ethiopia. Methods: A community based cross sectional study was conducted in Menz Lalo district from March to April, 2018 among 417 mothers/caregivers with children 12 to 23 months of age using simple random sampling technique. Data were collected using pretested structured Amharic questionnaire. Age appropriate vaccination coverage was measured using World Health Organization vaccination schedule recommendation. Information about children vaccination status was collected from children vaccination cards. Data was entered into Epi-Info7 software and exported to SPSS-20 for analysis. Logistic regression analysis was carried out to identify factors associated with age inappropriate vaccinations. A p-value of < 0.05 was considered to sate statistically significant association. Results: Age appropriate vaccination coverage were 39.1% (95% CI: 34.1-43.6) for Pentavalent 1, 36.3% (95% CI: 30.5-40) for Pentavalent 2, 30.3% (95% CI: 23.5-32.4) for Pentavalent 3 and 26.4% (95% CI: 18-29.4) for measles vaccine doses. Age inappropriate Pentavalent 1-3 vaccinations was associated with being male child (AOR: 0.47, 95% CI: 0.29-0.74), absence of telephone (AOR: 2.2, 95% CI: 1.4-3.6), absence of usual caretaker (AOR: 2.6, 95% CI: 1.3-5.2), unplanned pregnancy (AOR: 1.9, 95% CI: 1.1-3.5), missing antenatal conference participation (AOR: 2.7, 95% CI: 1.3-5.7), first birth order (AOR: 0.34, 95% CI: 0.17-0.68) and insufficient knowledge (AOR: 2.7, 95% CI: 1.6-4.4). Conclusion: The proportion of age appropriate vaccinations coverage was low in the study area. Modifiable factors were associated with age inappropriate vaccinations. Vaccination interventions should consider identified modifiable factors to improve age appropriate vaccinations coverage.
Feature 78, Northeast Quarter Excavated
**Feature 78, northeast quarter excavated** Location: Wall site (31Or11), Orange County, North Carolina. Period: Late Woodland (AD 1500-1600). Dimensions: length, 4.57 ft (1.39 m); width, 3.77 ft (1.15 m); depth, 2.02 ft (0.62 m). Notes: Feature 78, a large refuse-filled pit in the 380-400R640-650 block, with the northeast quarter excavated. This archaeological feature was excavated by the Research Laboratories of Archaeology, University of North Carolina at Chapel Hill, in 2015. Model by Steve Davis. Source: Objaverse 1.0 / Sketchfab
Lateral Variations in Upper Mantle Discontinuities beneath Northeast China Revealed by Seismic Ambient Noise
<div>Data description:</div> <div> </div> <div>CCdata.zip:</div> <div>Re-sampling Cross-Correlation functions (4Hz) which contain three seismic arrays.</div> <div>CEA contains HL, JL, LN and NM networks. </div> <div>NECESSarray contains YP network. NECsaids contains DB network. </div> <div>All the stations are located east of 122E, between 41N and 46N. </div> <div>The cross-correlations are used to retrieved body-wave reflections from mantle transition zone discontinuities.</div> <div> </div> <div>Syntheticdata.zip:</div> <div>contains four parts: rawdata1d, rawdata2d, stackedwaveform-2d, and compare-1d</div> <div> </div> <div>rawdata1d: </div> <div>raw synthetic waveforms calculated by Qseis (Wang, 1999) after data-processings.</div> <div>H is increased from 0 to 30 km. </div> <div>The distance is 100 km. </div> <div> </div> <div>rawdata2d: </div> <div>raw synthetic waveforms calculated by SPECFEM2D (Tromp et al., 2008).</div> <div>Three models with depressed d660 (model 1-3) and with a slab on the d660 (model 4). </div> <div>100 receiver stations (surface), from 305 km to 1295 km in 10 km increments.</div> <div>49 vertical single-force sources (surface), from 320 km to 1280 km in 20 km increments </div> <div> </div> <div>stackedwaveform-2d:</div> <div>The final depth results with different models.</div> <div> </div> <div>compare-1d:</div> <div>The waveforms used to compare the rf and cc.</div> <div> </div> <div>Code:</div> <div>These codes can be used to make the figures of synthetic and NCFs results. </div> <div> </div> <div> </div> <div>NECsaidsDescription.docx:</div> <div>Detailed description about the NECsaids project conducted in northeast China from October, 2010 to September, 2017.</div> <div> </div> <div>station_loc.txt:</div> <div>Coordinate file (station, longitude, latitude) of the stations.</div> <div> </div> <div>Reference</div> <div>Wang, R. (1999). A simple orthonormalization method for stable and efficient computation of Green's functions. Bulletin of the Seismological Society of America, 89(3), 733-741. doi: 10.1785/BSSA0890030733</div> <div>Tromp, J., Komatitsch, D. and Liu, Q. Y. (2008). Spectral-element and adjoint methods in seismology. Commun Comput Phys 3, 1-32.</div>
Large-scale Forest Stand Height mapping for the northeast of U.S. and China using L-band spaceborne repeat-pass InSAR and GEDI
<p><span>The forest height mosaic for the northeastern parts of China and U.S are generated based on a global-to-local inversion approach proposed in </span><span><span>(Yu et al., 2023)</span></span><span> by making use of Spaceborne repeat-pass InSAR and spaceborne GEDI data. The sparsely but extensively distributed LiDAR samples provided by NASA’s GEDI mission are used to parametrize the semi-empirical repeat-pass InSAR scattering model(Lei et al., 2017) and to obtain forest height estimates. Compared to our previous efforts </span><span><span>(Lei et al., 2018, Lei and Siqueira, 2022)</span></span><span>, this paper further removes the assumptions that were made given the limited availability of calibration samples at that time, and developed a new inversion approach based on a global-to-local two-stage inversion scheme. This approach allows a better use of local GEDI samples to achieve finer characterization of temporal decorrelation pattern and thus higher accuracy of forest height inversion.<span> </span>This approach is further fully automated to enable a large-scale forest mapping capability. Two forest height mosaic maps were generated for the entire northeastern regions of U.S. and China with total area of 18 million hectares and 112 million hectares, respectively. The validation of the forest height estimates demonstrates much improved accuracy achieved by the proposed approach compared to the previous efforts i.e., reducing from RMSE of 3-4 m on the order of 3-6-hectare aggregated pixel size to RMSE 3-4 m on the order of 0.81-hectare pixel size. The proposed fusion approach not only addresses the sparse spatial sampling problem inherent to the GEDI mission, but also improve the accuracy of forest height estimates compared to the GEDI-interpolated maps by a factor of 20% at 30-m resolution. The extensive evaluation of forest height inversion against LVIS LiDAR data indicates an accuracy 3-4 m on the order of 0.81 hectare over smooth areas and 4-5 m over hilly areas in U.S., whereas the forest height estimates over northeastern China are best compared with small footprint LiDAR validation data even at an accuracy of even below 3.5 m with R2 mostly above 0.6. Such a forest height inversion accuracy at sub-hectare pixel size provides promising values towards the existing and future spaceborne LiDAR (</span><span>JAXA’s MOLI, NASA’s GEDI, China’s TECIS</span><span>) and InSAR missions (</span><span>NASA-ISRO’s NISAR, JAXA’s ALOS-4 and China’s LuTan-1</span><span>). This fusion prototype can work as a cost-effective solution for public users to obtain a wall-to-wall forest height mapping at large scale when only spaceborne repeat-pass InSAR data are available and freely accessible.</span></p>
Database of experimental determinations of soil respiration in pine and spruce forests during the growing season of 2023 at the Lyalsky test site (middle taiga, northeast of the East European Plain)
<p>The data set includes the results of 342 measurements of CO2 emissions (SR, gС/m2/day) from the soil surface of coniferous ecosystems at the Lyalsky test site during the growing season (May-September) of 2023. The objects of the study were: pine forest (PS, Gleyic Folic Albic Podzol (Arenic)) and spruce forest (SM, Albic Retisols). The values of temperature (Ts, at a depth of 10 cm), moisture (Ms, in a layer of 0-5 cm) of the soil and air temperature (Ta) are also given.</p><p>The research was carried out by employees of the Institute of Biology of Komi Science Centre of the Ural Branch of the Russian Academy of Sciences as part of the most important innovative project of national importance "Development of a system for ground-based and remote monitoring of carbon pools and greenhouse gas fluxes in the territory of the Russian Federation, ensuring the creation of recording data systems on the fluxes of climate-active substances and the carbon budget in forests and other terrestrial ecological systems" (Registration number: 123030300031-6). </p>
Figure 26 in Molecular and morphological confirmation of Isometrus maculatus (DeGeer 1778) (Scorpiones Buthidae) from Northeast India and East Asia
Figure 26. Distribution of Isometrus specimens analysed here (see Figs 24–25).
Burned and Unburned Boreal Larch Forest Site Data, Northeast Siberia
<p>This dataset provides field measurements and estimates of carbon stocks and combustion rates that characterize burned and unburned larch forest stands near Yakutsk in the Republic of Sakha, Russia. Measurements were conducted in 2019 at 41 stands that burned in the Batamay fire (2017) and Yert fire (2018), and at 12 unburned stands in comparable adjacent areas. A description of all variables included in this dataset is provided in the associated README file.</p>
Data from:Modelling the spatiotemporal dynamics of soil nitrogen in croplands of Northeast China from 1980 to 2023 using multisource data and machine learning
<p>This dataset include the spatiotemporal distribution and uncertainty of cropland soil total nitrogen content at 0-30, 30-60, 60-100 cm depths in Northeast China from 1980 to 2023. The long-time series of TN were estimated by using an space-time automatic machine learning. The detail information on the products were given below:</p> <p>Period: 1980-2023</p> <p>Spatial resolution: 0.004166667 degree (~500 m)</p> <p>Temporal resolution: 1 year</p> <p>CRS: geographic latitude/longitude (EPSG:4326 - WGS 84 – Geographic)</p> <p>Data format: GeoTIFF</p>
Data for the figures in "In-cloud characteristics observed in US Northeast and Midwest non-orographic winter storms with implications for ice particle mass growth and residence time"
<div> <div>This repository contains data shown in the figures in Allen, L. R., Yuter, S. E., Crowe, D. M., Miller, M. A., and Thornhill, K. L.: "In-cloud characteristics observed in US Northeast and Midwest non-orographic winter storms with implications for ice particle mass growth and residence time," to be submitted to Atmospheric Chemistry and Physics.</div> <div> </div> <div> <div> <div>Description of the original data sources: All of the NASA IMPACTS data are archived by GHRC at https://ghrc.nsstc.nasa.gov/uso/ds_details/collections/impactsC.html (McMurdie et al., 2019). The NSF PLOWS 1-second flight-level data are archived by the UCAR Earth Observing Laboratory at https://data.eol.ucar.edu/dataset/113.063 (UCAR/NCAR - Earth Observing Laboratory, 2011). ERA5 hourly data on pressure levels are available from the Copernicus Climate Data Store at https://cds.climate.copernicus.eu/datasets/reanalysis-era5-pressure-levels?tab=overview (Hersbach et al., 2023b). ERA5 hourly single-level data are available from the Copernicus Climate Data Store at https://cds.climate.copernicus.eu/datasets/reanalysis-era5-single-levels?tab=overview (Hersbach et al., 2023a).</div> </div> </div> </div>
Tree canopy accession strategy changes along the latitudinal gradient of temperate Northeast Asia
<p>Aim: Understanding how natural forest disturbances control tree regeneration is key to predict the consequences of globally accelerating forest diebacks on carbon stocks and forest biodiversity. Tropical cyclones (TCs) are important drivers of forest dynamics in Eastern Asia and it is predicted that their importance will increase. However, little is known about TC impact on forest regeneration.</p> <p>Location: Latitudinal gradient from south Korea (33°N) to the Russian Far East (45°N).</p> <p>Time period: Last 300 years.</p> <p>Major taxa studied: <i>Quercus mongolica</i>, <i>Abies nephrolepis</i> and <i>Pinus koraiensis</i>.</p> <p>Methods: We explore the effects of TC activity on canopy accession strategies derived from long-term tree radial growth patterns along a 1500-km latitudinal gradient of decreasing TC activity. We analyzed canopy accession strategies for more than 800 trees of three widely distributed tree species by dividing them into gap trees (GTs) that established immediately after gap formation, and released trees (RTs) that accessed the upper canopy after a period of competitive suppression.</p> <p>Results: We found a substantial decrease in GTs and increase in RTs proportionally along the gradient of decreasing TC activity. <i>P. koraiensis</i> and <i>A. nephrolepis</i> exhibited high variability in the proportions of the individual canopy accession strategies along the latitudinal gradient, while it was more stable for <i>Q. mongolica</i>. We identified the gradient of TC activity as the main driver influencing canopy dynamics and thus changes in life history traits for <i>P. koraiensis</i> and <i>Q. mongolica</i>, while maximal growth rate was the main driver for <i>A. nephrolepis</i>.</p> <p>Main conclusions: Flexibility in growth strategies enabled the studied species to cover extensive areas and indicates that they will be able to cope with shifts in disturbance regimes induced by the poleward migration of TCs and increasing TC intensity. Our results highlight the canopy accession strategy as an ecological indicator of past disturbance activity.</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.