Find research datasets worth reusing

opencc-bySep 2019View details →

White River Narrows, Nevada - Locus 01 P13

White River Narrows, Nevada - Locus 01 P13. This model was created from UAS images taken during a pre-graffiti removal project in August of 2019 by Dr. Loubser of Stratum Unlimited, Inc for the Bureau of Land Management. Graffiti has been removed since this model was done. Source: Objaverse 1.0 / Sketchfab

opencc-by-4.0Aug 2022View details →

Fig. 3 in Reproductive characteristics of the Burmese Narrow-headed Softshell Turtle, Chitra vandijki, in captivity

Fig. 3. Hatchling of Burmese Narrow-headed Softshell Turtle.

opencc-by-4.0Nov 2018View details →

Dataset for "Open-Circuit Voltage Deficit in Cu2ZnSnS4 Solar Cells by Interface Band Gap Narrowing"

Files in "ExchangeCorrelation": POSCAR_material_Exc material <ul> <li>CdS </li> <li>CZTS = Cu2ZnSnS4</li> <li>CZTSe = Cu2ZnSnSe4</li> </ul> Exchange-correlation functionals <ul> <li>PBE</li> <li>RP = revised PBE</li> <li>PBEsol</li> <li>AM05</li> <li>SCAN</li> <li>HSE06</li> <li>6_6: PBE+U (U= 6 eV for Cu d and Zn d)</li> <li>8_8: PBE+U (U= 8 eV for Cu d and Zn d)</li> </ul> Files in "Interface" POSCAR_S_fixed: CZTS/CdS interface, CdS layers were fully relaxed. POSCAR_S_PBE_U: CZTS/CdS interface, the atomic coordinates were relaxed using PBE+U POSCAR_S_SCAN_U: CZTS/CdS interface, the atomic coordinates were relaxed using SCAN+U POSCAR_Se_fixed: CZTSe/CdS interface, CdS layers were fully relaxed. POSCAR_Se_PBE_U: CZTSe/CdS interface, the atomic coordinates were relaxed using PBE+U POSCAR_Se_SCAN_U:  CZTSe/CdS interface, the atomic coordinates were relaxed using SCAN+U

opencc-by-4.0Sep 2019View details →

Dataset: Indoor Localization with Narrow-band, Ultra-Wideband, and Motion Capture Systems

Localization Dataset README In this, data for BLE and UWB calibration is included through the use of UWB and OptiTrack Motion capture system respectively. There are two sets of data each covering two scenarios; these being walking and trolley. The two groups containing the data are laid out identically as indicated below. Bluetooth Low Energy / Ultra-Wideband | Session ID | 8 x AoA | 8 x RSSI | BLE x | BLE y | UWB x | UWB y | Where : - AoA  is Angle of Arrival, with two values given for each anchor node. - RSSI is the Received Signal Strength Indicator, also with two values given for each anchor node. - BLE x and y location estimates [1]. - UWB x and y location estimates. Number of Samples (BLE/UWB) The datasets contains the following number of samples: - Walk - 4896 samples. - Trolley - 4856 samples. Ultra-Wideband / OptiTrack Motion Capture | Session ID | 4 x CIR | 4 x PSA | Distance | UWB x | UWB y | OPT x | OPT y | Where: - CIR is Channel Impulse Response for each received signal from the Anchors to the target tag. - PSA is the Preamble Symbol Accumulation, from each of the 4 Anchors to the target tag. - Distances of the tag to each of the 4 anchors. - UWB x and y location estimates. - OptiTrack location estimates. Number of Samples (UWB/OPT) - Walk - 2797 samples. - Trolley - 3202 samples. Total Number of Samples : 15751 [1]: A Khan, T Farnham, R Kou, U Raza, T Premalal, A Stanoev, W Thompson, "Standing on the Shoulders of Giants: AI-driven Calibration of Localisation Technologies", IEEE Global Communications Conference (GLOBECOM) 2019

opencc-by-4.0Jun 2021View details →

Analysis code and quantification for publication "The stress-sensing domain of activated IRE1α forms helical filaments in narrow ER membrane tubes"

Analysis code and input/output files for all quantifications performed for publication entitled "The stress-sensing domain of activated IRE1α forms helical filaments in narrow ER membrane tubes."  All questions on the analyses or code can be directed to han@walterlab.ucsf.edu

opencc-zeroDec 2017View details →

Data from: Narrow thermal tolerance and low dispersal drive higher speciation in tropical mountains

Species richness is greatest in the tropics and much of this diversity is concentrated in mountains. Janzen (1967) proposed that reduced seasonal temperature variation selects for narrower thermal tolerances and limited dispersal along tropical elevation gradients. These locally adapted traits should, in turn, promote reproductive isolation and higher speciation rates in tropical mountains compared to temperate ones. Here we show that tropical and temperate montane stream insects have diverged in thermal tolerance and dispersal capacity, two key traits that are drivers of isolation in montane populations. Tropical species in each of three insect clades have markedly narrower thermal tolerances and lower dispersal than temperate species, resulting in significantly greater population divergence, higher cryptic species diversity, higher tropical speciation rates, and greater accumulation of species over time. Our study also indicates that tropical montane species, with narrower thermal tolerance and reduced dispersal ability, will be especially vulnerable to rapid climate change.

opencc-zeroNov 2022View details →

Tension zone trapped by exogenous cline: analysis of a narrow hybrid zone between two parapatric Oxytropis species (Fabaceae)

Hybrid zones have been widely highlighted for their interest in understanding evolutionary processes. It is generally accepted that hybrid zones can be maintained in a balance between dispersal and selection. However, the selective forces can either be endogenous (i.e., genetic incompatibilities between parental taxa) or exogenous (i.e., parental taxa are adapted to different environments). In this study, we evaluated these alternatives and determined the maintenance of a narrow hybrid zone between parapatric distributed Oxytropis diversifolia and O. leptophylla in Nei Mongol, China. For 507 individuals sampled from two populations in the hybrid zone, 12 O. diversifolia populations and five O. leptophylla populations, we measured leaf-morphological characteristics, quantified genetic structure using 11 nuclear microsatellite loci and five chloroplast DNA intergenic regions, collected micro- and macrohabitat data, and conducted geographical cline analysis. We found that the two species differed in leaf morphology, and putative hybrids showed either intermediacy or a bias to O. diversifolia. Parental taxa formed two genetically distinct clusters, while populations in the hybrid zone consisted of both parental forms and various admixed individuals, exhibiting a bimodal pattern. The hybrid zone was coupled to ecological transitions of both microhabitat (i.e., the slope) and macroclimatic conditions. However, the genetic clines were significantly narrower than the environmental cline. Our results indicate that endogenous selection can be primarily responsible for maintaining the hybrid zone, while local adaptation accounts for the position of the zone. We further suggest the probable outcome of hybridization could be introgression.

opencc-by-4.0Dec 2022View details →

Analysis of Narrow Bipolar Events Using Mode Decomposition Methods

All the data for generating figures of the paper "Analysis of Narrow Bipolar Events Using Mode Decomposition Methods" are presented here.The data NBE1.mat, NBE2.mat and NBE3.mat are from Rison et. al. (2016) with doi: 10.1038/ncomms10721(2016), which is protected by copyright.

opencc-zeroFeb 2023View details →

Aligned and curated mtDNA sequences from: Ancient DNA of narrow-headed voles reveals common features of the Late Pleistocene population dynamics in cold-adapted small mammals

Narrow-headed vole, together with collared lemming and common vole, was the most abundant small mammal species across Eurasian Late Pleistocene steppe-tundra environments. Previous ancient DNA studies of the latter two revealed dynamic past population histories shaped by climatic fluctuations. To investigate the extent to which species with similar adaptations share common evolutionary histories, we generated a dataset comprising mitochondrial genomes of 139 ancient and 6 modern narrow-headed voles from multiple sites across Europe and north-western Asia and covering the last ca. 100 thousand years (ka). We inferred Bayesian time-aware phylogenies using 11 radiocarbon-dated samples for calibration of the molecular clock. We found that across the three species, divergence of the main mtDNA lineages occurred during Marine Isotope Stages (MIS) 7 and MIS 5, suggesting a common response of species adapted to open habitat to the interglacial environments. In European narrow-headed voles, we identified multiple time-structured mtDNA lineages, implying lineage turnovers. Timing of some of these turnovers was synchronous across all three species, allowing us to identify the main drivers of the Late Pleistocene dynamics of steppe- and cold-adapted species.

opencc-by-4.0Mar 2023View details →

Experimental materials for "Reanalysis of Empirical Data on Java Local Variables with Narrow and Broad Scope"

Data, scripts, and graphs for the paper "Reanalysis of Empirical Data on Java Local Variables with Narrow and Broad Scope", published in ICPC 2023.See README file for details on directories and usage.

Tectona grandis: Narrow Genetic Base? A New Perspective on the Genetic Variability of Teak

Teak (Tectona grandis Linn. f.) is considered one of the most expensive hardwoods in the world. The dispersion of the species over the years has taken the teak beyond its origin centers and little is known about the genetic origin and genetic variability. This study aimed to investigate the genetic diversity and population structure existing in a teak germplasm bank collection in Brazil. DNA was extracted from young leaves and each sample were genotyped by whole genome sequencing at 8x of coverage, the sequencing were aligned using the genome at NCBI, and SNPcalls and quality control were made. To study the population structure of the genotypes, Bayesian variational inference was used via fastStructure, the phylogenetic tree was based on the modified Euclidean distance and the clustering by the UPGMA hierarchical method. Genetic diversity was analyzed based on the pairwise genetic divergence (Fst) of Weir and Cockerham. Genotyping by sequencing resulted in a database of approximately 1.4 million of variations SNPs were used for analysis. It was possible to identify four subpopulations with genetic variability between and within the subpopulations, so this study made it possible to confirm the existence of genetic variability in teak, contrary to what was expected.

Tectona grandis: Narrow Genetic Base? A New Perspective on the Genetic Variability of Teak

opencc-by-4.0Dec 2004View details →

Fig. 24 in Four new narrow-range endemic species of Gulella from Eastern Cape, South Africa (Mollusca: Pulmonata: Streptaxidae)

Fig. 24. Map of northern Eastern Cape showing distribution of new species.

Data for: Aspects of distribution, abundance, habitat, and life history of the Caddo Madtom (Noturus taylori), a narrow endemic of the Ouachita Highlands

The Caddo Madtom, Noturus taylori, is a small catfish endemic to the Ouachita Mountain ecoregion in Arkansas, with habitat altered by land use practices and reservoir dams. We examined aspects of distribution, abundance, habitat, and life history of N. taylori during seasonal sampling from winter 2016 through fall 2017. Our sampling data were concordant with previous studies that suggested N. taylori is more widespread and has higher catch per unit effort in the Caddo River drainage when compared to the upper Ouachita River drainage. We did not detect N. taylori in the Little Missouri River drainage, where it is presumed extirpated. A total of 370 individuals ranging from 14–76 mm (mean = 45.1 mm) standard length (SL) were collected during seasonal samples. Length-frequency analyses estimated a maximum age of 3 years for N. taylori, and we identified three discernable age classes with the emergence of young-of-year (age 0 cohort) in summer: age 0 (up to ~40 mm SL); age 1 (~41–60 mm SL); and age 2+ (>60 mm SL). Sites where N. taylori was captured had an average depth of 20.6 cm, an average base velocity of 0.18 m/sec, and were dominated primarily by a mix of gravel, pebble, and cobble. Despite the relatively higher abundances of N. taylori in the Caddo River, we recommend that long-term, periodic monitoring of N. taylori would be an important conservation tool to assess potential future changes in distribution, habitat, occurrence, and abundance. Future studies that implement occupancy and habitat suitability modeling are needed to better understand suitable and preferred habitat of N. taylori.

opencc-by-4.0Jun 2023View details →

Data for "Propagation Eects of Slanted Narrow Bipolar Events: A Rebounding-Wave Model Study"

The data for generating the figures in "Propagation Eects of Slanted Narrow Bipolar Events: A Rebounding-Wave Model Study".  Each file consists of time (microsecond) and the electric field (V/m).

Tectona grandis: Narrow Genetic Base? A New Perspective on the Genetic Variability of Teak

opencc-by-4.0Dec 2022View details →

Ecological barriers for an amphibian pathogen: a narrow ecological niche for Batrachochytrium salamandrivorans in an Asian Chytrid hotspot

We used GLM and Maxent models to predict the potential distribution of Batrachochytrium salamandrivorans (Bsal) based on the climate, non-climate, and biotic variables.

opencc-by-4.0May 2023View details →

Ages and metallicities of stellar clusters using S-PLUS narrow-band integrated photometry: the Small Magellanic Cloud

These are the final photometric quantities measured in the work "Ages and metallicities of stellar clusters using S-PLUS narrow-band integrated photometry: the Small Magellanic Cloud". The raw S-PLUS images are available upon request to the corresponding author. Nevertheless, the complete S-PLUS data will become publicly available alongside the next data release, scheduled for 2023.

opencc-zeroOct 2023View details →

Sideways maneuvers enable narrow aperture negotiation by free-flying hummingbirds

Many birds routinely fly fast through dense vegetation characterized by variably sized structures and voids. Successfully negotiating these cluttered environments requires maneuvering through narrow constrictions between obstacles. We show that Anna's Hummingbirds (Calypte anna) can negotiate apertures less than one wingspan in diameter using a novel sideways maneuver that incorporates continuous, bilaterally asymmetric wing motions. Crucially, this maneuver allows hummingbirds to continue flapping as they negotiate the constriction. Even smaller openings are negotiated via a faster ballistic trajectory characterized by tucked and thus non-flapping wings, which reduces force production and increases descent rate relative to the asymmetric technique. Hummingbirds progressively shift to the swept method as they perform hundreds of consecutive transits, suggesting increased locomotor performance with task familiarity. Initial use of the slower asymmetric transit technique may allow birds to better assess upcoming obstacles and voids, thereby reducing the likelihood of subsequent collisions. Repeated disruptions of normal wing kinematics as birds negotiate tight apertures may determine the limits of flight performance in structurally complex environments. These strategies for aperture transit and associated flight trajectories can inform designs and algorithms for small aerial vehicles flying within cluttered environments.