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11,837 results for “Stress;”
Mandible morphology as a tool to investigate origin, adaptation and stress in invasive alien species. First insights into Callosciurus erythraeus in Europe
<p>When an alien species is introduced in a new area, the number of founding individuals affects the severity of the population bottleneck, hence the new population may be distinctively different, both genetically and phenotypically, from the parent population from which it is derived. In this study we investigated the variation in shape and size of the mandible among and within three populations of the invasive Pallas’s squirrel, a tree squirrel native to SE Asia and introduced in Italy, Belgium and France. Significant differences in both size and shape of the mandible were found among all population pairs, with France being the most distinct. French squirrels showed a larger and slender mandible with a broad angular process, a restricted condyle, and a backward-oriented coronoid process. The Italian and the Belgian population differ at a lesser extent, the Italian squirrels having a lower coronoid process, a broader angular apophysis, and a restricted condyle. s. Size explained 15% of the total shape variation, but the orientation of allometric trajectories did not reveal any significant difference among populations. French squirrels showed the highest fluctuating asymmetry (both size and shape) of the right versus the left mandible, the Italians the highest directional asymmetry. Results are discussed in terms of different selective pressures in the invaded areas related to functionally mastication, and possible factors affecting fluctuating and directional asymmetry. The hypothesis of the classic mandibular two-module organization of rodent mandible (alveolar region vs ascending ramus) was confirmed both before and after correcting for size.</p>
Dataset of Middle Dutch lexical stress patterns and syllabifications
<p>This dataset consists of <strong>48.219 Middle Dutch words</strong> taken from in total 205 rhymed texts of the <em>Cd-rom Middelnederlands </em>(1998). All of these words have been <strong>assigned a syllabification and lexical stress pattern</strong>.</p> <p>E.g.: <em>proevede</em> is syllabified as <em>proe-ve-de</em> and has a stress index set at -3, which means that – counting from the rightmost syllable – the third syllable receives stress.</p> <p>This upload contains the following files:</p> <ul> <li>The <strong>JSON-file</strong> (compressed), which was used as input data for a machine learning algorithm trained for the automatic syllabification and stress assignment of Middle Dutch polysyllabic words (for the code of this experiment, see <a href="https://github.com/WHaverals/stresser">GitHub</a>)</li> <li>An <strong>Excel-file</strong>, containing the same data as the JSON (for more convenient reference)</li> <li>A <strong>split file </strong>(compressed), used in the training proces of the above-mentioned experiment</li> <li>A pdf-file with some <strong>insightful illustrations</strong> about the contents of the dataset</li> </ul> <p>This dataset is part of the research of <a href="https://www.uantwerpen.be/en/staff/wouter-haverals/research/">Wouter Haverals</a> (FWO, University of Antwerp), carried out under the supervision of prof. Mike Kestemont and em. prof. Frank Willaert.</p>
Mechanical behavior and microstructure evolution of extruded AZ31 bar under combined stress states
<p>the raw data of mechanical behavior and pole figures of extruded AZ31 bar under combined stress states</p>
Salt stress responses in 9 Arabidopsis accessions
<p>The dataset is used as an example dataset for the MVApp, previously published the results in Awlia et al., 2016 Frontiers in Plant Science.</p>
Sleep problems are a strong predictor of stress-related metabolic changes in police officers. A prospective study
<p>Data used for a prospective study on occupational stress, sleep problems and metabolic syndrome in a sample of police officers, Italy, 2009-2014. Paper submitted to PLoS One, waiting for a decision.</p>
Processed data for "Dissociation of solid tumour tissues with cold active protease for single-cell RNA-seq minimizes conserved collagenase-associated stress responses"
<p>tar.gz of processed data in the form of compressed R files (rds) of SingleCellExperiment (<a href="https://bioconductor.org/packages/release/bioc/html/SingleCellExperiment.html">https://bioconductor.org/packages/release/bioc/html/SingleCellExperiment.html</a>) objects and a metadata csv for the data in the publication <em>Dissociation of solid tumour tissues with cold active protease for single-cell RNA-seq minimizes conserved collagenase-associated stress responses </em>(O'Flanagan et al. 2019).</p>
Figure 1 in Cardiotoxic effects of enrofloxacin on electrophysiological activity, cardiac markers, oxidative stress, and haematological findings in rabbits
Figure 1. Histological examination of rabbit heart in the negative control (A) shows normal morphology. Histological examination of rabbit heart in group 1 (B) and group 2 (C) shows normal morphology except for some minor abnormalities including hyperaemia in some areas (H&E, 400×).
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 4 in Evaluation of nickel-induced brain injuries in rats via oxidative stress and apoptosis: attenuating effects of hyperoside
Figure 4. Morphology and location of PAS granules of brain tissues of control (A), Hyp-treated (B), Ni-treated (C), and Ni + Hyp-treated (D) rats. Homogeneous PAS staining was observed in the control group (A) and the Hyp-treated (B) groups. Clusters of granules shown inside square (C) and by black arrow (D), respectively (200× magnification).
Figure 3 in Evaluation of nickel-induced brain injuries in rats via oxidative stress and apoptosis: attenuating effects of hyperoside
Figure 3. Histological views of brain tissues of control (A), Hyp-treated (B), Ni-treated (C), and Ni + Hyp-treated (D) rats. Small blood vessels (BV) from pia mater penetrate the cerebral cortex substance pyramidal cells (PC) with apical dendrites closely associated with smaller, round glial cells (GC) (A and B). Perivascular inflammation around a blood vessel (inside square) (C) and perivascular inflammatory cell infiltrates in hematoxylin and eosin-stained brain tissue (D) (200× magnification).
Figure 5 in Evaluation of nickel-induced brain injuries in rats via oxidative stress and apoptosis: attenuating effects of hyperoside
Figure 5. Brain tissues of control (A) and Hyp (B) groups were negative for Congo red. Amyloid deposits in brain parenchyma and around blood vessels shown inside square (C) and marked by black arrows (D) (200× magnification). Differences in measured parameters among the groups were analyzed with a nonparametric test (Kruskal–Wallis). Dual comparisons between groups exhibiting significant values were evaluated with a Mann–Whitney U test (P <0.05).
Figure 1 in Evaluation of nickel-induced brain injuries in rats via oxidative stress and apoptosis: attenuating effects of hyperoside
Figure 1. Effect of Ni administration on body weight gain. Data are presented as mean ± standard error of mean (SEM) (n = 7). a Significant differences between other studied groups and control (a4 P <0.0001). b Significant differences between other groups studied and Hyp group (b1 P <0.05, b4 P <0.0001). c Significant differences between other groups studied and Ni + Hyp group (c3 P <0.001) by Tukey's multiple range tests.
Figure 1 in DNA damage, oxidative stress, decreased viability and motility in common carp (Cyprinuscarpio L.) spermatozoa induced by tryptophan, phenylalanine and cysteine amino acids during short-term storage
Figure 1. Effect of tryptophan (T), phenylalanine (P), cysteine (C) at concentrations of 1, 5, 25, and 50 mM on DNA fragmentation of common carp (Cyprinuscarpio L.) spermatozoa at 6 (a), 24 (b), and 48 (c) h.
Figure 2. A in Susceptibility of Agriotes spp. larvae (Coleoptera: Elateridae) to stress-and-kill strategies using spinosad and the entomopathogenic fungus Metarhizium brunneum
Figure 2. A: MetarhIzIum brunneum strain ART2825 growth in the tracheae of AgrIotes obscurus 22 days posttreatment. B: ART2825 fungal colonization in the integument of A. obscurus 22 days posttreatment.
Figure 3. A in Susceptibility of Agriotes spp. larvae (Coleoptera: Elateridae) to stress-and-kill strategies using spinosad and the entomopathogenic fungus Metarhizium brunneum
Figure 3. A: Sporulation of MetarhIzIum brunneum strain 16P on AgrIotes sordIdus 21 days posttreatment (zoom ×6.7). B: M. brunneum strain 16P primary and secondary fungal growth, with melanotic spots (black arrow) on A. sordIdus (×6.7). C: ART2825 fungal growth on the cuticle of A. obscurus 22 days posttreatment. D: Fungal growth on the cuticle of A. obscurus, which could correspond to the secondary growth on the sclerites.
Figure 1. A in Susceptibility of Agriotes spp. larvae (Coleoptera: Elateridae) to stress-and-kill strategies using spinosad and the entomopathogenic fungus Metarhizium brunneum
Figure 1. A: Leg of AgrIotes obscurus exposed to MetarhIzIum brunneum strain ART2825 48 h posttreatment. B: intersegment area of A. obscurus exposed to M. brunneum strain F52 36 h posttreatment, C: Depression at the base of a setae of A. obscurus with F52 conidia 24 h posttreatment, D: Melanization on A. sordIdus exposed to M. brunneum strain 16P 21 days posttreatment (zoom x 6.7).
Figure 3 in Short-time salinity fluctuations are strong activators of oxidative stress in Mediterranean mussel (Mytilus galloprovincialis)
Figure 3. Short-time salinity fluctuations promote ROS formation in hemocytes. Mussels were acclimated to high (24 - 40 ‰, HS) and low (6-14 ‰, LS) environmental salinity. ROS levels were analyzed based on flow cytometric measurement of fluorescence levels of hemocytes stained with DCF-DA. Bars indicate mean±SE. Results were considered significant when p<0.05 by Mann-Whitney test (n=10).
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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)
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DANDI Archive for NWB datasets
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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.