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2,555 results for “Lead”
Growing up with nutritional stress leads to peripheral social network positions, independent of 'personality'
<p>Variables:</p> <p>BirdID: unique identifier of individuals</p> <p>Day: numerical, day of testing</p> <p>Room: physical Location of aviary, arbitrary numbering</p> <p>Group: numerical. Each group consists of one sex. </p> <p>Degree, Strength, EC, CV: social network variables. When precluded by a "D"; calculated using duration-based networks. When precluded by "F"; calculated using frequency-based networks. </p> <p>Sex: 1 = female, 2 = male</p> <p>DT: developmental treatment. Easy or Hard </p> <p>GenDad & GenMom: unique identifier. Genetic father or mother. </p> <p>DS, GP, PC1NO, PC1exp, Immobility: personality scores from Gerritsma et al., 2023. When precluded by "s", they are standardized ((x - mean) / sd). </p> <p>Broodsize: numerical, natal broodsize. </p> <p>nestID: unique identifier for nest, arbitrary numbering. </p> <p>Aviary: aviary in which individual was born. Arbitrary numbering. </p> <p>Groupday: combination of day and group. First day of first group would be 11. Tenth day of first group would be 101. </p> <p>Sexmc: mean-centered sex (sex-avg(sex)). </p> <p>Broodsizemc: mean-centered brood size. </p> <p>logTI: log10(immobility)</p> <p>DT3: numerical representation of DT. 1 = hard, 0 = easy. </p>
FIG. 2 in Does the removal of non-photosynthetic sections lead to a down-regulation of photosynthesis in mosses? A first experiment
FIG. 2. — Comparisons of the sample- (A-C) and mass- (D-F) based CO2 assimilation rates of green and brown moss sections, and the sum of these two sections (sample-based plots) and the changes through time for three moss species. Shown are the mean values ± standard errors (smaller than the symbol in some cases) of different sections determined at different time points, starting at a few minutes after separation. Sample-based plots are expressed as the CO2 exchange per sample to allow a direct comparison of intact and separated sections. Gray solid and dashed lines show the mean values of intact shoots (values shown to the right), ± standard errors. Asterisks indicate significant differences in assimilation rates between intact shoots and the sum of the separated sections (paired t-test, p<0.05, n = 4). And the capital and lowercase letters indicate significant differences among time points (p<0.05).
FIG. 1 in Does the removal of non-photosynthetic sections lead to a down-regulation of photosynthesis in mosses? A first experiment
FIG. 1. — Shoots of the three moss species used for the "brown-section-removal" experiment, collected on the eastern slope of Gongga Mountain. A, Actinothuidium hookeri (Mitt.) Broth.; B, Pleuroziopsis ruthenica (Weinm.) Kindb. ex E. Britton; C, Pogonatum nudiusculum Mitt. The red arrows indicate the points where the brown and green sections were separated.
Dataset: Cabana Target Leading Sector Moderate ETF (CLSM) Stock Performance
This dataset provides historical stock market performance data for specific companies. It enables users to analyze and understand the past trends and fluctuations in stock prices over time. This information can be utilized for various purposes such as investment analysis, financial research, and market trend forecasting.
Dataset: Lead Real Estate Co., Ltd (LRE) Stock Performance
This dataset provides historical stock market performance data for specific companies. It enables users to analyze and understand the past trends and fluctuations in stock prices over time. This information can be utilized for various purposes such as investment analysis, financial research, and market trend forecasting.
Supplementary Material to "Exothermic reactions and 39Ar–40Ar thermochronology: Hydration leads to younger apparent ages"
<p>Here we briefly describe the supplementary materials for the publication "Exothermic reactions and 39Ar–40Ar thermochronology: Hydration leads to younger apparent ages" in Geology, 52(6), 458-462 by Schorn, S., Moulas, E., & Stüwe, K. (2024).</p>
Multiple stressors lead to complex responses in reproductive behaviors in an African cichlid
<p>Exposure to multiple environmental stressors is a common occurrence that can affect organisms in predictable or unpredictable ways. Hypoxia and turbidity in aquatic environments are two stressors that can affect reproductive behaviors by altering energy availability and the visual environment, respectively. Here we examine the relative effects of population and the rearing environment (oxygen concentration and turbidity) on reproductive behaviors. We reared cichlid fish (the Egyptian mouthbrooder, Pseudocrenilabrus multicolor) from two populations (a swamp and river) until sexual maturity, in a full factorial design (hypoxic/normoxic x clear/turbid) and then quantified male competitive and courtship behaviors and female preference under their respective rearing conditions. Overall, we found that the rearing environment was more important than population for determining behavior, indicating there were few heritable differences in reproductive behavior between the two populations. Unexpectedly, males in the hypoxic rearing treatment performed more competitive and courtship behaviors. Under turbid conditions males performed fewer competitive and courtship behaviors. We predicted that females would prefer males from their own population. However, under the hypoxic and turbid combination females from both populations preferred males from the other population. Our results suggest that reproductive behaviors are affected by interactions between male traits, female preference, and environmental conditions.</p>
Fig. 2 in Oxyspirura petrowi infection leads to pathological consequences in Northern bobwhite (Colinus virginianus)
Fig. 2. Histological section of Northern bobwhite (Colinus virginianus) Harderian glands with a varying degree of pathological response associated with Oxyspirura petrowi infection. Scale bar = 200 Mm.
Fig. 3 in Oxyspirura petrowi infection leads to pathological consequences in Northern bobwhite (Colinus virginianus)
Fig. 3. Scanning electron microscope photograph of the head and mouth structure of Oxyspirura petrowi removed from a Northern bobwhite (Colinus virginianus) captured in the Rolling Plains of Texas, USA.
Fig. 1 in Oxyspirura petrowi infection leads to pathological consequences in Northern bobwhite (Colinus virginianus)
Fig. 1. Histological section of a Northern bobwhite (Colinus virginianus) Harderian gland with intraluminal Oxyspirura petrowi parasites in transverse section (indicated by arrows) and marked heterophilic Harderian adenitis. Hematoxylin and eosin staining at 100×, scale = 100 Mm * = marked lymphocyte and heterophilic inflammatory cell infiltrate; C = cuticle; HD = hypodermis; SM = somatic musculature; LC = lateral cords; PC = pseudocoelom; A = alimentary tract; U = uterus containing embryonated eggs.
Text-fig. 8. Eospondylus cf. primigenius (STÜRTZ) "Červený lom" quarry near Praha-Klukovice, Loděnice Limestone, Lower Devonian, Pragian, NM L 36910, x 25. Left lateral plate, outer view. The surface leading to the vertical ridge flairs outward. The height profile leaves uncovered part of the side of the arm vertebra. in Isolated Ossicles Of The Family Eospondylidae Spencer Wright, 1966, In The Lower Devonian Of Bohemia (Czech Republic) And Correction Of The Systematic Position Of Eospondylid Brittlestars (Echinodermata: Ophiuroidea: Oegophiurida)
Text-fig. 8. Eospondylus cf. primigenius (STÜRTZ) "Červený lom" quarry near Praha-Klukovice, Loděnice Limestone, Lower Devonian, Pragian, NM L 36910, x 25. Left lateral plate, outer view. The surface leading to the vertical ridge flairs outward. The height profile leaves uncovered part of the side of the arm vertebra.
Figure 4 in Limitations of allometry, morphometry, and fluctuating asymmetry in detecting environmental stress caused by lead soil contamination in aphids under field conditions
Figure 4 Fluctuating asymmetry (mean and error deviation) observed in the antenna and tibia of Brevicoryne brassicae in the presence (Lead (Pb)) and absence (Control) of lead.
Figure 3 in Limitations of allometry, morphometry, and fluctuating asymmetry in detecting environmental stress caused by lead soil contamination in aphids under field conditions
Figure 3 Negative allometry represented by the allometric coefficients of both the antenna and tibia and their confidence intervals; the values are related to the body length ofBrevicoryne brassicae in the presence (Lead (Pb)) and absence (Control) of lead.
Figure 1 in Limitations of allometry, morphometry, and fluctuating asymmetry in detecting environmental stress caused by lead soil contamination in aphids under field conditions
Figure 1 Brevicoryne brassicae placed in a dorsal-ventral position for structure measurement. (a): Total body length (b): antenomer length (c): length of the posterior tibia. Source: the authors.
Figure 2 in Limitations of allometry, morphometry, and fluctuating asymmetry in detecting environmental stress caused by lead soil contamination in aphids under field conditions
Figure 2 Mean length and standard error of the antenna, tibia and body length of Brevicoryne brassicae in the presence (Lead (Pb)) and absence (Control) of lead.
FIGURE 1 in Water-level fluctuations lead to changes in the diet of an omnivorous fish in a floodplain
FIGURE 1 | Location of the Upper Paraná River floodplain (downstream of the Porto Primavera dam and upstream of the Itaipu reservoir) and the nine sampling stations on the Paraná, Baía, and Ivinhema rivers.
FIGURE 3 in Water-level fluctuations lead to changes in the diet of an omnivorous fish in a floodplain
FIGURE 3 | A. Relationship between the hydrometric level and the consumption of all allochthonous items; B. The consumption of terrestrial invertebrates; C. And the consumption of terrestrial plants for Trachelyopterus galeatus. The green graphs indicate a significant positive influence of the variable as a function of hydrometric level, while grayscale graphs indicate a non-significance.
FIGURE 2 in Water-level fluctuations lead to changes in the diet of an omnivorous fish in a floodplain
FIGURE 2 | Daily variation in the level of the Paraná River between 2000 and 2020 (provided by the Agência Nacional de Águas e Saneamento Básico - ANA). The horizontal line represents the 4.5 m level when the Paraná River overflows.
FIGURE 5 in Water-level fluctuations lead to changes in the diet of an omnivorous fish in a floodplain
FIGURE 5 | A. Relationship between the hydrometric level and the trophic niche breadth; B. Body condition; C. And the feeding activity of Trachelyopterus galeatus. The green graphs indicate a significant positive influence of the variable as a function of hydrometric level, while grayscale graphs indicate a non-significance.
FIGURE 4 in Water-level fluctuations lead to changes in the diet of an omnivorous fish in a floodplain
FIGURE 4 | A. Relationship between the hydrometric level and the consumption of all autochthonous items; B. The consumption of aquatic invertebrates; C. The consumption of detritus; D. And the consumption of fish for Trachelyopterus galeatus. Red graphs indicate a significant negative influence of the variable as a function of hydrometric level, while grayscale graphs indicate a non-significance.
ScienceDex guides
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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.