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10,735 results for “dependability”
Data from: A costly chemical trait: phenotypic condition dependence of cuticular hydrocarbons in a dung beetle
Chemical traits are increasingly recognised as important cues used in mate choice. For example, the cuticular hydrocarbons (CHCs) of insects have been shown to influence mating success in a range of taxa. Less is known, however, about how CHCs are expressed in proportion to an individual's condition, and consequently whether CHCs can function as condition dependent signals of quality. We investigated this question using the dung beetle, Onthophagus taurus. CHCs are subject to sexual selection in this species through mate choice. A dietary manipulation revealed condition dependence of CHC expression for both sexes: dietary restriction decreased overall CHC production and altered the composition of CHCs. Furthermore, CHC production was associated with a measure of condition in beetles fed a limited diet but not those fed ad libitum. These results implicate a resource cost to CHC production that is likely to result in trade-offs with other fitness components in this species, as these respond similarly to a dietary restriction. The CHC profiles showed sexual dimorphism: males produced more CHCs and the sexes differed in the blend of compounds they produced. There was evidence for a male dimorphism in the CHC profile, in line with the presence of the alternative reproductive tactics (minor sneaks and major fighters) in this species. However, rather than mimicking a female CHC profile, minor males differed more from females than major males. Our results suggest that CHCs are a costly trait in O. taurus that has the potential to act as a condition dependent signal of quality.
Variability, heritability and condition-dependence of the multidimensional male colour phenotype in a passerine bird
<p>Elaborate ornamental traits are commonly assumed to be honest signals of individual quality, owing to the presumed costs involved in their production and/or maintenance. Such traits are often highly variable, possibly because of condition-dependence and/or high underlying genetic variation, and it has been suggested that their expression should be more sensitive to condition and/or more heritable than non-ornamental traits. Many bird species display colourful plumage with multiple distinct patches of different developmental origins, forming complex colour phenotypes. Despite this complexity, colourful ornaments are often studied in isolation, without comparison to suitable non-ornamental controls. Based on plumage reflectance data collected over 8 years, we assessed the signalling potential of the multidimensional male colour phenotype in a tropical bird: the purple-crowned fairy-wren <i>Malurus coronatus</i>. Specifically, we tested the predictions that the express ion of putative ornamental colours (purple and black –the breeding colours– and blue) is (1) more variable, (2) more heritable and (3) more condition-dependent compared to year-round non-ornamental colours (buff-white and brown). Our results show that ornamental colours exhibit greater levels of variability, and some chromatic components of purple and blue colouration appear slightly heritable (<i>h</i>² = 0.19-0.30). However, contrary to predictions of heightened condition-dependence in ornaments, only brightness of the buff-white and brown colouration increased with male body condition, although brightness of the purple colouration was related to male age as expected. Despite partial support for predictions, the lack of consistent patterns illustrates the complexity of visual signals and highlights the need to study colour phenotypes in their entirety.</p>
Effector movement triggers gaze-dependent spatial coding of tactile and proprioceptive-tactile reach targets
<p>The article available under https://doi.org/10.1016/j.neuropsychologia.2014.07.025 is based on the uploaded dataset.</p> <p>Abstract</p> <p>Reaching in space requires that the target and the hand are represented in the same coordinate system. While studies on visually-guided reaching consistently demonstrate the use of a gaze-dependent spatial reference frame, controversial results exist in the somatosensory domain. We investigated whether effector movement (eye or arm/hand) after target presentation and before reaching leads to gaze-dependent coding of somatosensory targets. Subjects reached to a felt target while directing gaze towards one of seven fixation locations. Touches were applied to the fingertip(s) of the left hand (proprioceptive-tactile targets) or to the dorsal surface of the left forearm (tactile targets). Effector movement was varied in terms of movement of the target limb or a gaze shift. Horizontal reach errors systematically varied as a function of gaze when a movement of either the target effector or gaze was introduced. However, we found no effect of gaze on horizontal reach errors when a movement was absent before the reach. These findings were comparable for tactile and proprioceptive-tactile targets. Our results suggest that effector movement promotes a switch from a gaze-independent to a gaze-dependent representation of somatosensory reach targets.</p>
pH-dependent structural dynamics of the neuropeptide Y in aqueous solution
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The dynamic evolution of TOI: the altitudinal dependences
<p>The data from TIEGCM</p>
Fig. 2. Soil temperature changes from July 2003 in The Morphology and Temperature-dependent Development of Mylabris phalerata Pallas (Coleoptera: Meloidae)
Fig. 2. Soil temperature changes from July 2003 to June 2004 at Wuhan, P. R. China.
NUTRITIONALLY DEPENDENT DISEASES IN SCHOOLCHILDREN
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Reproduction Package: Geometry dependence of TLS noise and loss in a-SiC:H parallel plate capacitors for superconducting microwave resonators.
<p>Reproduction package</p><p>Version 1.0</p>
Humidity dependence of parameters of RSF law and AE activity
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Fig. 3 in High and lowland dependent wing phenotypic variation of the dark blue tiger butterfly, Tirumala septentrionis (Butler, 1874) (Lepidoptera: Nymphalidae) with FE-SEM wing scales nanomorphology
Fig. 3. Centroid size analysis of (A) Forewing and (B) Hindwing of T. septentrionis.
Chimneys and blankets: species-dependent methane emissions in a rewetted Dutch peatland
<p>Data belonging to the PhD thesis chapter "Chimneys and blankets: species-dependent methane emissions in a rewetted Dutch peatland", in:</p> <p>Vroom, R.J.E. 2024. From meadows to marshes: cultivating plants to revive degraded wetlands. PhD thesis, Radboud Universiteit, Nijmegen, the Netherlands.</p> <p>And the published paper Vroom, R.J.E., Gremmen, T.M., van Huissteden, J., Smolders, A.J.P., Kosten, S., Fritz, C., van de Riet, B.P., van Huissteden, C., van den Berg, M., 2024. Species-dependent methane emissions in a Dutch peatland during paludiculture establishment. Mires Peat 31, 1–19. doi:10.19189/MaP.2023.OMB.Sc.2422120</p> <p> </p>
Figure 5 from: Alqaisi KM, Abbas MA, Alshawawreh R (2024) Chrysin's dose-dependent effects on steroidogenesis in female BALB/c mice: In vivo study of adrenal, ovarian, and uterine hormone regulation. Pharmacia 71: 1-9. https://doi.org/10.3897/pharmacia.71.e114547
Figure 5 Histological analysis of the adrenal gland. A. Adrenal gland of control group; B. Adrenal gland of 100 mg chrysin-treated group.
Figure 2 from: Alqaisi KM, Abbas MA, Alshawawreh R (2024) Chrysin's dose-dependent effects on steroidogenesis in female BALB/c mice: In vivo study of adrenal, ovarian, and uterine hormone regulation. Pharmacia 71: 1-9. https://doi.org/10.3897/pharmacia.71.e114547
Figure 2 The expression of target genes in the ovary of female mice is expressed as A. Delta cycle threshold (ΔCt) and B. Relative fold gene expression. β-actin was used as a housekeeping gene for calculating ΔCt and relative fold gene expression. * P ≤ 0.05. 3β-HSD, 3β-Hydroxysteroid dehydrogenase/Δ5-4 isomerase.
Figure 1 from: Alqaisi KM, Abbas MA, Alshawawreh R (2024) Chrysin's dose-dependent effects on steroidogenesis in female BALB/c mice: In vivo study of adrenal, ovarian, and uterine hormone regulation. Pharmacia 71: 1-9. https://doi.org/10.3897/pharmacia.71.e114547
Figure 1 The expression of target genes in the adrenal gland of female mice is expressed as A. Delta cycle threshold (ΔCt) and B. Relative fold gene expression. β-actin was used as a housekeeping gene for calculating ΔCt and relative fold gene expression. * P ≤ 0.05, ** P ≤ 0.01. CYP17A1, cytochrome P450 family 17 subfamily A member 1; P450scc, cholesterol side-chain cleavage enzyme; 3β-HSD, 3β-Hydroxysteroid dehydrogenase/Δ5-4 isomerase.
Figure 7 from: Alqaisi KM, Abbas MA, Alshawawreh R (2024) Chrysin's dose-dependent effects on steroidogenesis in female BALB/c mice: In vivo study of adrenal, ovarian, and uterine hormone regulation. Pharmacia 71: 1-9. https://doi.org/10.3897/pharmacia.71.e114547
Figure 7 Histological analysis of the adrenal gland medulla. A. Adrenal medulla of control group; B. Adrenal medulla of 100 mg chrysin-treated group.
Figure 4 from: Alqaisi KM, Abbas MA, Alshawawreh R (2024) Chrysin's dose-dependent effects on steroidogenesis in female BALB/c mice: In vivo study of adrenal, ovarian, and uterine hormone regulation. Pharmacia 71: 1-9. https://doi.org/10.3897/pharmacia.71.e114547
Figure 4 Effect of chrysin on adrenal gland histology. Stained section of the control adrenal cortex showing a thin capsule (C) with underlying zona glomerulosa (G) arranged in oval or curved clusters. Zona fasciculata cells (F) are arranged in parallel cords while cells of zona reticularis (R) with anastomosing cords (H & E stain).
Figure 3 from: Alqaisi KM, Abbas MA, Alshawawreh R (2024) Chrysin's dose-dependent effects on steroidogenesis in female BALB/c mice: In vivo study of adrenal, ovarian, and uterine hormone regulation. Pharmacia 71: 1-9. https://doi.org/10.3897/pharmacia.71.e114547
Figure 3 The expression of estrogen receptor-α (ERα) in the uterus of female mice is expressed as A. Delta cycle threshold (ΔCt) and B. Relative fold gene expression. β-actin was used as a housekeeping gene for calculating of ΔCt and relative fold gene expression.
Figure 6 from: Alqaisi KM, Abbas MA, Alshawawreh R (2024) Chrysin's dose-dependent effects on steroidogenesis in female BALB/c mice: In vivo study of adrenal, ovarian, and uterine hormone regulation. Pharmacia 71: 1-9. https://doi.org/10.3897/pharmacia.71.e114547
Figure 6 Histological analysis of adrenal cortex. A. Adrenal cortex of the control group; B. Adrenal cortex of the 100 mg chrysin-treated group.
Figure 8 from: Tanaka S (2024) Temperature-dependent phototaxis in overwintering adults of the grasshopper Patanga japonica (Orthoptera, Acrididae). Journal of Orthoptera Research 33(1): 71-86. https://doi.org/10.3897/jor.33.102749
Figure 8 A, B. P. japonica adult emerging from the litter (A) and beginning to hide under the litter (B). C, D. The daily maximum number of P. japonica adults above litter surface in the outdoor enclosure from Jan. 12 to Apr. 13, 2022 (C) and temperatures under litter, on litter, and air temperature in shade (D). The mean values for short periods are given on top of each panel. Different letters above the means in C indicate significant differences with Steel-Dwass test at the 5% level.
Figure 5 from: Tanaka S (2024) Temperature-dependent phototaxis in overwintering adults of the grasshopper Patanga japonica (Orthoptera, Acrididae). Journal of Orthoptera Research 33(1): 71-86. https://doi.org/10.3897/jor.33.102749
Figure 5 A, B. The daily maximum number of P. japonica adults in the L-area of tubes (A) and mean temperatures from 08:00–18:00 (B). C, D. The relationship between the daily maximum number of adults in the L-area of tubes and daily maximum temperature in the D-area (C) and L-area (D) under outdoor conditions during the period from Dec. 22, 2021 to Jan. 6, 2022.
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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.