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117 results for “Trace elements”
Inter-Chemical Correlation results for the study: HHEARx2017-1977 (Microbial and metabolic variations mediate the influence of childhood and adolescent EDC and trace element exposure on breast density.)
Title: Microbial and metabolic variations mediate the influence of childhood and adolescent EDC and trace element exposure on breast density. <br>Species: Homo sapiens <br>Number of samples: 1116 <br>Number of named analytes: 41 <br>Datasource url: https://hheardatacenter.mssm.edu/PublicFile/ViewPublicFile?projectid=46 <br>
Dissolved trace element concentration profiles of micronutrients (Mn, Ni, Cu, Zn, Co) and contaminants (Cd, Pb) in seawater from discrete bottle samples from CCE Process Cruises in the California Current System, 2021 - 2025 (ongoing).
Dissolved trace element is sampled from the trace metal clean rosette. The sample is collected by filtering seawater through a 0.2µm PES filter. The seawater sample is then acidified to pH~1.8 using ultra clean hydrochloric acid and subsequently analyzed using sector-field inductively coupled plasma-mass spectrometry, scanning in low and medium resolution, with either standard curve or isotope dilution methods. The samples are used to develop a description of the distribution of dissolved trace elements in the CCE region.
Dataset for the project "Evaluation of the effects of trace elements from street dust under urban – industrial conditions on the ecophysiology of Acer platanoides L. and Tilia cordata Mill.
<p>Description of the project: The rapid growth of cities, industry and transport has significantly deteriorated environmental quality, especially in areas with the highest population densities. It applies to water, soil, and air, especially in urban areas. Air pollutants include particulate matter (PM), which harms human health. According to WHO reports (2021), PM pollution is the cause of cardiovascular and respiratory diseases, leading to 4.2 million premature deaths worldwide in 2016. Although improving every year, the situation in Poland is still worse than in many European countries. The particulate matter also includes heavy metals, which have a toxic effect on plants. Plants in urban areas are particularly vulnerable, especially trees, which perform several vital functions, including mitigating climate change, filtering pollutants, and improving air quality. The aim of the project was to determine and compare the morphological and physiological responses of selected tree species to particulate pollution stress under urban conditions. Tree leaves are an essential barrier to atmospheric dust by trapping it on their surface. However, this may come at the cost of reduced light absorption, increased leaf temperature, damage to leaf blades and consequently impaired photosynthesis and plant productivity. However, the ability to absorb dust varies between tree species. It depends on the leaf surface structure, and the response may be due to the species' sensitivity to pollutants. Investigations were conducted in the Upper Silesian Industrial Area around various emission sources, such as heavy metal smelters, combined heat and power plants, and busy streets. The research focused on two tree species common in urban areas, the Norway maple (<i>Acer platanoides</i>) and the small-leaved lime (<i>Tilia cordata</i>). It included measurement of heavy metal concentrations in leaf blades and dust collected on their surface, analysis of concentrations of selected pigments and ascorbic acid as markers of environmental stress. The study provided a preliminary assessment of the impact of particulate pollution on tree function under harsh urban conditions and determined the potential of the studied species to reduce atmospheric dust.</p>
Data accompanying the manuscript "Biogeochemical cycling of trace elements and nutrients in ferruginous waters – constraints from a deep oligotrophic ancient lake", published in Limnology and Oceanography (doi: 10.1002/lno.12687)
<p>CTD and geochemical data accompanying the publication: Biogeochemical cycling of trace elements and nutrients in ferruginous waters – constraints from a deep oligotrophic ancient lake in Limnology & Oceanography (doi: 10.1002/lno.12687).</p>
Pyrite Trace Element Dataset
<p>The dataset used in <em><strong>Interpreting Mineral Genesis Classification with Decision Maps: A Case Study Using Pyrite Trace Elements.</strong> </em></p>
Major and trace elements abundance of the Belbashani Pumice and other Hasandag deposits, Central Anatolian Volcanic Province
<p>Glass microchemical data, including major and trace elements, of the Belbashani Pumice, a Plinian eruption produced by Hasandag volcano about 400ka ago within the Central Anatolian Volcanic Province (CAVP)</p>
Data from: "Rare earth elements sediment analysis tracing anthropogenic activities in the stratigraphic sequence of Alagankulam (India)"
Open the record for dataset details and reuse information.
Long-term dynamics of trace elements concentrations in the organism of the shrews (Sorex) during the periods of high and reduction emissions from the copper smelter
<p>Data and code for mixed-model analysis for the article: </p> <p>Mukhacheva S.V. (2022) Long-term dynamics of trace elements concentrations in the organism of the shrews (Sorex) during the periods of high and reduction emissions from the copper smelter" // Russian Journal of Ecology. Vol. 5. </p> <p>Data provided by S.V. Mukhacheva</p> <p>Code provided by A.N. Sozontov</p>
Iron Trace Elements Concentration in PM10 and Alzheimer's Disease in Lima, Peru: Ecological Study - dataset
<p>This dataset was created to evaluate the association between iron trace-elements concentration in PM10 with Alzheimer´s Disease cases in different districts in Lima, Peru. The database was constructed using open-access repositories of the Peruvian Ministry of Health and the Peruvian CDC.</p> <p>The uploaded datasets are in .dta and .csv formats.</p>
Fig. 2 in Molecular Identification, Fatty Acid Profile and Trace Elements in a Stranded Fin Whale in Sabah (Borneo, Malaysia): Implications on Migration Routes and Trophic Ecology of Southern Fin Whales.
Fig. 2. (a) The phylogenetic tree showing the stranded baleen whale (Baleen whale KP/Sabah/02082012) clustered together with the fin whale Balaenoptera physalus (U13103, Z18633 and X61145). (b) The phylogenetic analysis of the cytochrome b gene sequence indicating that the stranded fin whale (Baleen whale KP/Sabah/02082012) is closely related to the specimen of fin whales from the southern hemisphere with accession number KC572845, which represents Balaenoptera physalus quoi.
Fig. 1 in Molecular Identification, Fatty Acid Profile and Trace Elements in a Stranded Fin Whale in Sabah (Borneo, Malaysia): Implications on Migration Routes and Trophic Ecology of Southern Fin Whales.
Fig. 1. Stranding site (red-filled triangle) of the fin whale at the Sitompok River (Lat. 05°34'672"N; Long.115°39'710"E) near Kuala Penyu (KP), a coastal town overlooking the South China Sea on the western shores of Sabah (Borneo, Malaysia) (inset map). The approximate location of the sighting of possible fin whales reported by De Boer (2000) is marked with a blue-filled circle. The distribution ranges of rorquals species, including fin whales, in the Philippine waters reported by Slijper et al. (1964) and Acebes (2014) are marked with green-filled circles. The locations of fin whales' migration ranges in Australian waters according to Aulich et al. (2019) are shown using red-filled circles. The stranding site of the unconfirmed fin whale species at Pulau Sugi (Junge 1950) is indicated by a yellow-filled circle.
Fig. 4 in Molecular Identification, Fatty Acid Profile and Trace Elements in a Stranded Fin Whale in Sabah (Borneo, Malaysia): Implications on Migration Routes and Trophic Ecology of Southern Fin Whales.
Fig. 4. (a) Concentrations of trace elements (Mean ± SD) in the skin and blubber of the southern fin whale recorded in the present study compared to (b) the concentrations of trace elements in the skin of southern right whales (Eubalaena australis) extracted from the results of Martino et al. (2013).
Fig. 3 in Molecular Identification, Fatty Acid Profile and Trace Elements in a Stranded Fin Whale in Sabah (Borneo, Malaysia): Implications on Migration Routes and Trophic Ecology of Southern Fin Whales.
Fig. 3. Comparison of the percentages of fatty acid profiles for (a) SFA, (b) MUFA and (c) PUFA in the tissues of adult male (M) and female (F) southern humpback whales during the early and late migrations extracted from the results of Waugh et al. (2012), epipelagic and mesopelagic (i.e., average) fish in the South China Sea (SCS) extracted from the supplementary data of Wang et al. (2019) and the southern fin whale in the present study.
Рис. 3. Соотношение концентраций биогенных микроэΛементов в очинах перьев (а) и скорΛупе яиц аистов (b), мг/кг Fig. 3. Concentratiom ratio of biogenic trace elements in the edges of feathers (a) and eggshells (b) of storks, mg/kg in Molting feathers and eggshells in monitoring rare bird species populations: Evidence from special protected natural territories
Рис. 3. Соотношение концентраций биогенных микроэΛементов в очинах перьев (а) и скорΛупе яиц аистов (b), мг/кг Fig. 3. Concentratiom ratio of biogenic trace elements in the edges of feathers (a) and eggshells (b) of storks, mg/kg
Figure 2 in Factors affecting trace element accumulation in livers of avian species from East Poland
Figure 2. RDA results showing the effect of different ecological parameters (the dotted lines) on the concentration of heavy metals in the livers of studied bird species. Monte Carlo permutation test of significance of all canonical axes: P = 0.002. Eigenvalues: axis 1 – 0.197; axis 2 – 0.138. Abbreviations and scales used for analysis: Species: CC - Corvus corax, CF - Corvus frugilegus, CO - Corvus cornix, CM - Corvus monedula, PP - Pica pica, SR - Streptopelia decaocto, AC - Anas platyrhynchos, GA - Garrulus glandarius, SR - Scolopax rusticola, AC - Ardea cinerea, PH - Phalacrocorax carbo, LA - Larus argentatus, LC - Larus canus, CR - Chroicocephalus ridibundus. Food preferences: food F – fish, food I – invertebrates, food O – omnivorous, food P – plants. Foraging area: importance of wetlands for foraging (I wetlands), importance of dumps for foraging (I dumps), importance of urban habitats for foraging (I urban): 0 – none, 1 – small, 2 – medium, 3 – big. Nesting site habitat: nest F – forest, nest U – urban habitat, nest A – aquatic habitat, nest R – rural habitats. Vertebrate carrion importance in food (I carrion): 1 – small, 2 – medium, 3 – big; invertebrate importance in food (I inv): 0 – none, 1 – small, 2 – big. Weight – weight of individuals according to Busse (1990).
Fig. 7. Trace element environmental proxies for the F–F in The Frasnian-Famennian events in a deep-shelf succession, Subpolar Urals: biotic, depositional, and geochemical records
Fig. 7. Trace element environmental proxies for the F–F transition in the Syv'yu River section. Bio−productivity tracers* are normalized according to Schmitzetal.(1997).DownwardarrowedtrendsarebasedonthesinglesampleCB99−222,located2.15mbelow;recognizedMo/Alenrichment,indicative of anoxic−sulfidic deposition, is shown as well. For explanations see Fig. 4.
Carbon neutrality policy can deliver disproportionately higher gains for toxic trace elements control in China
<p>The dataset of carbon neutrality policy can deliver disproportionately higher gains for toxic trace elements control in China.</p>
Surfactant Transport on Evolving Surfaces - Solutions of Space-Time Trace Finite Element Methods visualized.
<p>Videos of numerical experiments in the article "An accurate and robust Eulerian finite element method for partial differential equations on evolving surfaces" by H. Sass and A. Reusken. Surfactant transport on evolving surfaces with high curvatures and topological singularities is illustrated.</p>
Data for: Intra- and interspecific variation in trace element concentrations in feathers of North European Trans-African migrants
<p>The knowledge of migratory connectivity is important for understanding the potential drivers of populations and it is thus important for conservation implications. Migratory connectivity of species can be studied using exogenous, such as rings and transmitters, or endogenous markers, such as stable isotopes and trace elements. The use of trace elements has been much less frequently studied compared to stable isotopes. Trace elements can be studied from the feathers of birds and this does not necessarily require trapping of individuals. Here we studied the variation of 18 different trace elements in feathers of two long-distance trans-African migrants, willow warblers Phylloscopus trochilus and barn swallows Hirundo rustica, using body feathers of museum specimens of birds from Finnish breeding grounds. The trace elements were measured using Laser-Ablation Inductively-Coupled-Plasma Mass-Spectrometry. We show that trace element concentrations were relatively stable along the rachis within the same feather except in Ni and S, which showed a quadratic pattern. In general, variation within feathers of the same individuals was smaller than in feathers between individuals for most elements. Furthermore, concentrations of 11 trace elements showed significantly higher concentrations in willow warbler feathers collected in spring than in autumn, moulted in African wintering grounds and European breeding grounds, respectively. Last, concentrations of seven trace elements were significantly higher in the spring feathers of willow warblers compared to barn swallows. This suggests that trace elements could be used to separate moulting grounds of the birds on the larger scale within the same species, but also sampling design should be carefully considered.</p>
Whole rock major, minor, and trace element compositions of basaltic glassy pillow selvages and hyaloclastite from Kverkfjöll, Iceland.
<p>Whole rock compositions of glassy pillow selvages and hyaloclastite (tuff) from the Kverkfjöll region, Iceland, were measured as a part of a master's thesis in geology from the University of Iceland. Major and minor element compositions for the glassy selvages were measured via ICP-OES. Trace element compositions for the glassy selvages and tuff were measured via ICP-MS. Please refer to the actual thesis for more information: Valdimarsdóttir, I. K. (2023). <em>Origin, extent, and emplacement conditions of newly exposed pillow lavas in the Kverkfjöll region, Iceland</em>. [Master's thesis, University of Iceland]. Skemman.</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.