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13,017 results for “Positionning”
Text-fig. 1. The map of the BCB showing position of localities with recorded specimens. in Taxonomy And Stratigraphic Distribution Of The Ammonite Schloenbachia Neumayr, 1875 From The Bohemian Cretaceous Basin
Text-fig. 1. The map of the BCB showing position of localities with recorded specimens.
Text-fig. 1. Geographical position of the localities studied. in A New Species Of The Genus Tumidopteris Naugolnykh From The Permian Of The Pechora Cis-Urals, Russia
Text-fig. 1. Geographical position of the localities studied.
Fig. 62 in Postcranial Osteology Of Azendohsaurus Madagaskarensis (?Middle To Upper Triassic, Isalo Group, Madagascar) And Its Systematic Position Among Stem Archosaur Reptiles
Fig. 62. Right fibula of Azendohsaurus madagaskarensis (FMNH PR 3813) in (A) proximal, (B) lateral,
Fig. 74 in Postcranial Osteology Of Azendohsaurus Madagaskarensis (?Middle To Upper Triassic, Isalo Group, Madagascar) And Its Systematic Position Among Stem Archosaur Reptiles
Fig. 74. The relationships of Allokotosauria found in the analyses of this study.
Fig. 8 in Postcranial Osteology Of Azendohsaurus Madagaskarensis (?Middle To Upper Triassic, Isalo Group, Madagascar) And Its Systematic Position Among Stem Archosaur Reptiles
Fig. 8. The reconstructed vertebral column of Azendohsaurus madagaskarensis.
Fig. 6 in Postcranial Osteology Of Azendohsaurus Madagaskarensis (?Middle To Upper Triassic, Isalo Group, Madagascar) And Its Systematic Position Among Stem Archosaur Reptiles
Fig. 6. Elements present in the holotype of Azendohsaurus madagaskarensis (UA 7-20-99-653).
Fig. 2 in Postcranial Osteology Of Azendohsaurus Madagaskarensis (?Middle To Upper Triassic, Isalo Group, Madagascar) And Its Systematic Position Among Stem Archosaur Reptiles
Fig. 2. Map of the location of the holotype locality of Azendohsaurus madagaskarensis.
Fig. 1 in Postcranial Osteology Of Azendohsaurus Madagaskarensis (?Middle To Upper Triassic, Isalo Group, Madagascar) And Its Systematic Position Among Stem Archosaur Reptiles
Fig. 1. Skeletal reconstruction of Azendohsaurus madagaskarensis.
Fig. 2 in Redescription and phylogenetic position of the enigmatic Neotropical electric fish Iracema caiana Triques (Gymnotiformes: Rhamphichthyidae) using x-ray computed tomography
Fig. 2. Head of Iracema caiana, MZUSP 49205 (paratype), 345 mm SL.
Positive orientation and marathon performance
<p>The file contains data from research on marathon participants. Psychological and demographics data have been obtained before the marathon event. Results (marathon performance) have been obtained according to bib numbers after the competition. </p>
Nicosia, Bedestan. Plan of the east end showing the position of the ribs and dome built in the mid-sixteeth century.
<p>Nicosia, Bedestan. Plan of the east end showing the position of the ribs and dome built in the mid-sixteeth century. Drawing by M. Willis and Vicki Herring.</p> <p> </p>
Selfing rate variation within species is unrelated to life-history traits or geographic range position
<p>Premise: In plants, populations and species vary widely along the continuum from outcrossing to selfing. Life-history traits and ecological circumstances influence among-species variation in selfing rates but their general role in explaining intraspecific variation is unknown. Using a database of plant species, we test whether life-history traits, geographic range position, or abundance predict selfing rate variation among populations. </p> <p>Methods: We identified species where selfing rates were estimated in at least three populations at known locations. Two key life-history traits (generation time and growth form) were used to predict within-species selfing rate variation. Populations sampled within a species' native range were assessed for proximity to the nearest edge and abundance. Finally, we conducted linear and segmented regressions to determine functional relationships between selfing rate and geographic range position within species.</p> <p>Key results: While woody species exhibit lower variation in selfing rates compared to herbs, this is explained by the lower average selfing rate of woody species. Relationships between selfing and peripherality or abundance significantly varied among species in their direction and magnitude. However, there was no general pattern of increased selfing towards range edges. A power analysis shows that tests of this hypothesis require studying many (i.e. 40+) populations.</p> <p>Conclusions: Intraspecific variation in plant mating systems is often substantial yet remains difficult to explain. Beyond sampling more populations, future tests of biogeographic hypotheses will benefit from phylogeographic information concerning specific range edges, the study of traits influencing mating system (e.g. herkogamy), and measures of abundance at local scales (e.g. population density).</p>
Improved library preparation protocols for amplicon sequencing-based noninvasive fetal genotyping for RHD-positive D antigen-negative alleles
<p>We aimed to simplify our fetal <i>RHD</i> genotyping protocol by changing the method to attach Illumina's sequencing adaptors to PCR products from the ligation-based method to a PCR-based method, and to improve its quantitative accuracy by introducing unique molecular indexes, which allow us to count the numbers of DNA fragments used as PCR templates and to minimize the effects of PCR and sequencing errors. Both of the newly established protocols reduced time and cost compared with our conventional protocol. Removal of PCR duplicates using UMIs reduced the frequencies of erroneously mapped sequences reads likely generated by PCR and sequencing errors. The modified protocols will help us facilitate implementing fetal <i>RHD</i> genotyping for East Asian populations into clinical practice.</p>
'Signal integrity' in the Audiovisual Media Services Directive: Process, positions and policies examined and explained
<p>Tables 1 & 2 can be used as complementary material for readers of the forthcoming article (2021) in the Journal of Digital Media & Policy entitled <em>‘Signal integrity’ in the Audiovisual Media Services Directive: Process, positions and policies examined and explained.</em> Table 1 looks at the Mapping of modifications, processes and cases referred to by Article 7b and Recital 26 exemptions, while Table 2 presents the stakeholders' argumentation relating to signal integrity based on economic and cultural positions, and the scope of the measure. For the online version of the article, these tables are referred to in-text in the shape of hyperlinks and full links in the printed version.</p> <p>The article aims to get a broad picture of current practices, positions and policy on signal integrity. Based on the findings, this article proposes a clear framework for the implementation of Article 7b. It identifies the key considerations made in relation to exemptions and consent and reveals the positions of the key stakeholders and the vacuum that is exists at the level of MS regulation. Therefore, the concept of ‘signal integrity’ and the legal protections it sets on broadcasters’ signal will be explored.</p>
Heterospecific pollen deposition is positively associated with reproductive success in a diverse hummingbird-pollinated plant community
<p>Heterospecific pollen deposition (HPD) is ubiquitous across plant communities, especially for generalized species which use a diversity of pollinators, and may have negative effects on plant reproduction. However, it is unclear whether temporal changes in the co-flowering community result in changes in HPD patterns. Moreover, community-level studies are required to understand which factors influence HPD and how the reproduction of different species is affected. We investigated the temporal variation of HPD, its relationship with level of specialization on pollinators and floral phenotypic specialization, and its association with reproductive success (pollen limitation and fruit set) in 31 hummingbird-pollinated plant species in a tropical Campo Rupestre. We found seasonality in HPD, with species flowering in the dry season having greater diversity of heterospecific pollen on stigmas and a higher frequency of stigmas containing heterospecific pollen, compared to the rainy season. Stigmas of ecologically generalized species had more heterospecific pollen, while the relationship for ecologically specialized species depended on floral phenotype. Surprisingly, and in contrast to theory, we found a positive relationship between HPD and reproductive success. Our results indicate benefits of generalization and facilitation, in which sharing pollinators brings greater reproductive success via increased conspecific pollen deposition, even if it incurs more HPD. We demonstrated how assessing HPD at a community-level can contribute to understanding the ecological causes and functional consequences of pollinator sharing.</p>
MultiMS2 spectral library - mzml positive and negative
<p>Dataset containing direct-injection mass spectrometry (DI-MS) data acquired on different.</p> <p>Data was acquired in positive and negative polarities, at different collision energies, using CID or EAD fragmentation.</p> <p>Data was first converted to profile <em>.mzML</em> using: </p> <pre><code>docker run -it --rm \</code><br><code>-v .:/data \</code><br><code>proteowizard/pwiz-skyline-i-agree-to-the-vendor-licenses \</code><br><code>wine msconvert "*.wiff" \</code><br><code>--ignoreUnknownInstrumentError</code></pre> <p>And then centroided using CentroidR (v.0.0.9001) (<a href="https://doi.org/10.5281/zenodo.17250308" target="_blank" rel="noopener">https://doi.org/10.5281/zenodo.17250308</a>) using default parameters.</p>
Strong evidence for positive and negative correlational selection revealed by recreating ancestral variation
<p>The study of adaptation helps explain biodiversity and predict future evolution. Yet the process of adaptation can be difficult to observe due to limited phenotypic variation in contemporary populations. Furthermore, the scarcity of male fitness estimates has made it difficult to both understand adaptation and evaluate sexual conflict hypotheses. We addressed both issues in our study of two anther position traits in wild radish (Raphanus raphanistrum): anther exsertion (long filament − corolla tube lengths) and anther separation (long − short filament lengths). These traits affect pollination efficiency and are particularly interesting due to the unusually high correlations among their component traits. We measured selection through male and female fitness on wild radish plants from populations artificially selected to recreate ancestral variation in each anther trait. We found little evidence for conflicts between male and female function. We found strong evidence for stabilizing selection on anther exsertion and disruptive selection on anther separation, indicating positive and negative correlational selection on the component traits. Intermediate levels of exsertion are likely an adaptation to best contact small bees. The function of anther separation is less clear, but future studies might investigate pollen placement on pollinators and compare species possessing multiple stamen types.</p>
NL, Remote Driving, Remote driving using 5G positioning
<p>Use Case Category: <strong>Remote Driving</strong><br> User Story: <strong>Remote driving using 5G positioning</strong><br> Location: Dutch (NL) trial site</p> <p>According to 3GPP TS 22.186 R16, Remote Driving “enables a remote driver or a V2X application to operate a remote vehicle for those passengers who cannot drive themselves or a remote vehicle located in dangerous environments. For a case where variation is limited, and routes are predictable, such as public transportation, driving based on cloud computing can be used. In addition, access to cloud-based back-end service platform can be considered for this use case group”.</p> <p>User Story: <strong>Remote driving using 5G positioning</strong></p> <p>In situation where the AD vehicle is unable to automatically drive further (due to a failure or unexpected driving condition), a remote operator takes over control of the vehicle and drives it to a point where AD can be resumed. As an example, this can be in situations like border control, construction zones and inclement weather. To tele-operate a vehicle, the data from multiple sensors should stream their information (synchronised and with low latency) to the operator and at the same time have low latency in the control task of manoeuvring the vehicle in real time.</p> <p>One example for tele-operation is when an AD vehicle is automatically manoeuvred to a bay/slot assigned by border control remotely/via 5G and local edge computing for monitoring actions of the autonomous car by the border agents. For automated manoeuvring in a complex border-post environment, precise localization (of the car in surroundings by the car, plus potentially of the car by the infrastructure) is needed. In the NL trial, tele-operation will be tested by driving the vehicle from the emergency lane to an assigned slot on a rest area along the A270. However, testing of localization services will be carried out at the TU/e campus as it needs special infrastructure, e.g., fibre optical backbone and multiple 5G small cells, available at the TU/e campus for high accuracy localisation services and low latency. New 5G technology based on adaptation and integration of 5G beam steering and MIMO will be used for localization and positioning. The 5G (mm-wave) based location can serve as a redundant localization system and useful in scenarios such as border customs control with gates with a roof covering.</p>
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<p>Most relevant job offers published in the categories of software development, data and sysadming and devops of the web Remotive.com</p>
Effects of nutrient pulses on exotic species shift from positive to neutral with decreasing water availability
<p>Temporal fluctuation in nutrient availability generally promotes the growth of exotic plant species and has been recognized as an important driver of exotic plant invasions. However, little is known about how the impact of fluctuating nutrients on exotic species depends on the availability of other resources, although most ecosystems are experiencing dramatic variations in a wide variety of resources due to global change and human disturbance. Here, we explored how water availability mediates the effect of nutrient pulses on the growth of six exotic and six native plant species. We subjected individual plants of exotic and native species to well-watered or water-stressed conditions. For each level of water availability, we added equivalent amounts of nutrients at a constant rate, as a single large pulse or in multiple small pulses. Under well-watered conditions, nutrient pulses promoted exotic plant growth relative to nutrients supplied constantly, while they had no significant effect on natives. In contrast, under water-stressed conditions, water deficiency inhibited the growth of all exotic and native species. More importantly, nutrient pulses did not increase plant growth relative to nutrients supplied constantly and these phenomena were observed for both exotic and native species under water-stressed conditions. Taken together, our study shows that the impact of fluctuating nutrient availability on the growth of exotic plant species strongly depends on the variation of other resources and that the positive effect of nutrient pulses under well-watered conditions disappears under water-stressed conditions. Our findings suggest that variation of multiple resources may have complex feedback to exotic plant invasions, and therefore it is critical to encompass multiple resources for the evaluation of fluctuating resource availability effects on exotic plant species. This will allow us to project the invasive trajectory of exotic plant species more accurately under future global change and human disturbance.</p>
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.