Find research datasets worth reusing
Search datasets from major research repositories and use ShareScore to quickly assess how well each record supports discovery, access, and reuse.
2,914
datasets available to search
ShareScore release 0.9.0
Dataset results
2,914 results for “replacement”
Data from: Computed tomographic analysis of dental system of three Jurassic ceratopsians: implications for the evolution of the tooth replacement pattern and diet in early-diverging ceratopsians
<p><span>T</span><span>he </span><span>dental system of ceratops</span><span>ids is among the most specialized structure in Dinosauria</span><span>, and includes high angled wear surfaces, split tooth roots, and multiple teeth in each tooth family. However, the early evolution of this unique dental system is generally poorly understood due to a lack of knowledge of the dental morphology and development in early-diverging ceratopsians.</span><span> Here we study the dental system of </span><span>three</span><span> of the earliest-diverging Chinese ceratopsians</span><span>: </span><em><span>Yinlong</span></em><span> and <em>Hualianceratops</em> from the early Late Jurassic of Xinjiang</span><span>,</span><span> and <em>Chaoyangsaurus</em> from the Late Jurassic of Liaoning. By using micro-computed tomographic analyses, our study has revealed significant new information regarding the dental system of these early ceratopsians, including </span><span>no</span><span> more than five replacement teeth in each jaw quadrant; at most one generation of replacement teeth in each alveolus; nearly full resorption of the functional tooth root during tooth replacement; and occlusion with low-angled, concave wear facets that differs significantly from the shearing occlusal system seen in ceratopsids. <em>Yinlong</em> displays an increase in the number of maxillary tooth alveoli and a decrease in the number of replacement teeth during ontogeny as well as the retention of remnants of functional teeth in the largest individual.</span> <span>Early-diverging ceratopsians thus display a relatively slow tooth replacement rate compared to late-diverging ceratopsians.</span> <span>Combined with paleobotany and palaeoenvironment data, <em>Yinlong</em> likely uses gastroliths to triturate foodstuffs, and t</span><span>he difference in diet strategy might have influenced the pattern of tooth replacement in later-diverging ceratopsians.</span></p>
Mechanical energy fluctuation in lower limbs during walking in participants with and without total hip replacement
<p>Mechanical energy fluctuation of the segments in the lower limbs during walking has not been fully investigated. It was hypothesised that the segments of the lower limbs may work as a pendulum, i.e., the kinetic and potential energies exchanged out of phase. This study aimed to investigate energy changes and recovery during gait in hip replacement patients. The gait data for 12 participants with total hip replacement and 12 age-matched controls were compared. The kinetic, potential, and rotative energies for the whole lower limb and thigh, calf, and foot, were calculated. The effectiveness of a pendulum effect was analysed. Gait parameters, e.g., walking speeds, cadence, and stride length were calculated. The results showed that the thigh had significant effectiveness as a pendulum during gait with an energy recovery coefficient of approximately 40% while the calf and foot were less like a pendulum during gait. In comparison, energy recoveries of the lower limbs in the two groups were not significantly different. If the centre of the pelvis was considered as approximate to the centre of mass, however, the control group had a higher energy recovery than the total hip replacement group by roughly 10%. This study concluded that the mechanical energy recovery mechanism in the lower limbs during walking exists for two groups.</p>
Data from: When can model-based estimates replace surveys of wildlife populations that span many discrete management units?
<p>Monitoring widely distributed species on a budget presents challenges for the spatio-temporal allocation of survey effort. When there are multiple discrete units to monitor, survey alternatives such as model-based estimates can be useful to fill information-gaps but may not reliably reflect biological complexity and change. The spatio-temporal allocation of survey effort that minimizes uncertainty for the greatest number of units within a budget can help to ensure monitoring efforts are optimized.</p> <p>We used aerial survey-based population estimates of moose (Alces alces) across 30 Wildlife Management Units (WMUs) in Ontario, Canada to parameterize simulated populations and test the performance of different monitoring scenarios in capturing WMU-specific annual variation and trends. Firstly, we tested scenarios that prioritized conducting a survey for a unit based on one of three management criteria: population state, population uncertainty, or number of years between surveys. Also incorporated in the decision framework were WMU-specific costs and annual budget constraints. Secondly, we tested how using model-based estimates to fill information-gaps improved population and trend estimates. Lastly, we assessed how the utility (based on minimizing population uncertainty) of using a model-based estimate rather than conducting a survey was impacted by population density, severity of environmental stressors, and years since the last survey.</p> <p>Interval-based monitoring that minimized the number of years between surveys captured accurate trends for the highest number of WMUs, but annual variation was poorly captured regardless of management criteria prioritized. Using model-based estimates to fill information gaps improved trend estimation. Further, the utility of conducting a survey increased with time since the last survey and was greater for populations with low densities when the severity of environmental stressors was high, while being greater for populations with high densities when environmental severity was low.</p> <p>Overall, the utility of aerial survey monitoring was strongly associated with WMU-specific monitoring precision and the predictive power of model-based estimates. If long-term trends are evident then there is greater value in using alternatives such as model-based predictions to replace surveys, but model-based estimates may be a poor substitute when there is strong annual variation and when using a simple model.</p>
Willingness to replace animal-based products with pulses among consumers in different European countries
<p>The growing world population and increased meat consumption pose a challenge for current food production systems. While pulses present a promising position in terms of low impacts in primary production and high nutritional quality, it is unclear whether consumers are willing to consume pulses instead of meat. Based on an online survey answered by 4,322 respondents across five European countries, this study examined consumers’ willingness to utilize pulses as a plant-based alternative to animal-based products. More than a third of pulse consumers (42%) were, to some extent, already using pulses as an alternative to animal-based foods. Beef was noted as the most frequently replaced type of food, mainly driven by arguments relating to health, environment, and sustainability, especially relevant for German and Danish consumers. Respondents who did not indicate a current replacement of animal-based foods stated a relatively low willingness to change in the future (40%). German pulse consumers were likely to be part of the low willingness segment. In contrast, Polish consumers possessed a relatively higher incidence of using pulses instead of meat, especially pork and poultry. Respondents with a low replacement willingness indicated a high importance of future pulse-based products to be natural, while respondents already using pulses instead of animal-based foods expected convenient and minimally processed foods. Respondents, who already replaced meat with pulses or expressed a low future willingness, stated to prefer plain pulses over processed pulse-based products, and meat-resembling forms considering the former segment, alternatively to meat. These preferences and expectations should be considered for future product development, especially if aiming to attract unwilling consumers to shift to pulse-based foods.</p>
Data and scripts from: Replacement drives native β-diversity of British avifauna, while richness differences shape alien β-diversity
<p><strong>Aim: </strong>We explored the range shifts of alien and native birds, the responses of alien and native β-diversity to abiotic factors, and the effect of native diversity on alien β-diversity in two time periods.</p> <p><strong>Location:</strong> Great Britain.</p> <p><strong>Time period: </strong>1968–1972, 2007–2011.</p> <p><strong>Taxa studied:</strong> Breeding birds.</p> <p>Methods: We estimated range shifts of alien and native species between the periods 1968–1972 and 2007–2011. Following, β-diversity of alien and native communities was estimated by Jaccard pairwise index (β<sub>tot</sub>) and partitioned into richness difference and replacement component for each period. We built abiotic Generalized Dissimilarity Models including abiotic factors for alien and native β<sub>tot</sub> and their components and a biotic model for aliens including native taxonomic and functional diversity as predictors.</p> <p><strong>Results:</strong> Most alien and half native species expanded into new regions during the 40-year period. The native species range shifts did not exhibit a clear pattern along the longitudinal or latitudinal gradient, while alien species tended to move north-westwards. The richness difference was the dominant component of alien β-diversity, and the replacement component contributed mostly to native β-diversity. Alien β-diversity responded similarly, but less strongly than native β-diversity, to the abiotic gradients. Temperature-related variables, distance, and precipitation were the most important abiotic drivers of native and alien β-diversity. The biotic model of alien <span>β</span>-diversity explained more deviance than the abiotic model.</p> <p><strong>Main conclusions:</strong> Alien species expanded into new regions over the 40 years, with alien β-diversity driven mostly by species gains. The effect of environmental filtering on alien communities was weaker compared to native communities but was slightly reinforced in the second period compared to the first period, highlighting the role of environmental change in shaping diversity patterns. Native diversity played a key role in driving alien <span>β</span>-diversity, through biotic interactions or/and by reflecting climatic suitability or niche availability for aliens.</p>
The trunk replaces the longer mandible as the main feeding organ in elephant evolution--Supplementary codes
<p>The long-trunked elephantids underwent a significant evolutionary stage characterized by an exceptionally elongated mandible. The initial elongation and subsequent regression of the long mandible, along with its co-evolution with the trunk, present an intriguing issue that remains incompletely understood. Through comparative functional and eco-morphological investigations, as well as feeding preference analysis, we reconstructed the feeding behavior of major groups of longirostrine elephantiforms. In the <em>Platybelodon</em> clade, the rapid evolutionary changes observed in the narial region, strongly correlated with mandible and tusk characteristics, suggest a crucial evolutionary transition where feeding function shifted from the mandible to the trunk, allowing proboscideans to expand their niches to more open regions. This functional shift further resulted in elephantids relying solely on their trunks for feeding.</p>
Figure 2 in Replacement level of rubber seed cake for soybean meal on the growth of Japanese quail
Figure 2. Kernel of rubber seeds.
Figure 1 in Replacement level of rubber seed cake for soybean meal on the growth of Japanese quail
Figure 1. Raw rubber seeds from the plantation.
Fig. 1 in Phosphate replicated and replaced microstructure of molluscan shells from the earliest Cambrian of China
Fig. 1. Location of studied exposures of the Meishucunian in the Yunnan Province.
Particle displacement characterization during gas replacement of hydrate-bearing sediment
<p>Text S1 is uploaded with name “Polymerization analysis.txt”. Detailed method information includes polymerization analysis. (Figure 5).</p> <p>Movie S1 is uploaded with name “Movie S1.gif”. Detailed information includes longitudinal cross-sectional X-ray CT images of the HBS.</p>
Minimally Invasive Transaxillary Approach: Aortic Valve Replacement in a Patient with BMI >50 kg/m²
<p>This video demonstrates the successful application of the transaxillary MICLAT-S (<em>M</em>inimally <em>I</em>nvasive <em>C</em>ardiac <em>L</em>ateral <em>S</em>urgery) approach for aortic valve replacement (AVR) in a patient with a BMI >50 kg/m². The procedure showcases the feasibility and safety of the MICLAT-S technique in a high-risk, morbidly obese patient, a group traditionally considered challenging for minimally invasive surgery. By sparing the sternum and utilizing a lateral, transaxillary access route, the MICLAT-S method minimizes surgical trauma, reduces the risk of postoperative wound complications, and preserves thoracic stability, even in patients with extreme obesity.</p> <p>Despite the patient’s elevated BMI, the surgical team was able to maintain excellent access to the aortic valve, ensuring a smooth and efficient valve replacement. This video further supports the findings of our study, which demonstrate that the transaxillary concept of MICLAT-S is a viable alternative to traditional sternotomy, offering significant advantages, particularly in obese patients.</p> <p>This description complements the video by tying it to the findings of the paper and underlining the advantages of the transaxillary concept of MICLAT-S technique in this specific patient population.</p>
Pulsed administration for physiological estrogen replacement in mice
<p>In this study, mice were ovariectomized and treated with physiological doses of 17β-estradiol-3-benzoate (E2) dissolved in miglyol or PBS. Subcutaneous injections were performed every 4 days to resemble the estrus cycle in mice. Results show that OVX induces an osteoporotic phenotype, fat accumulation and impairment of the locomotor ability, as expected. Pulsed administration of physiological doses of E2 dissolved in miglyol rescues the phenotypes induced by OVX. However, when E2 is dissolved in PBS the effects are less pronounced, possibly due to rapid wash out of the steroid.</p>
Figure 1 in World Catalogue of Propalticidae, with a replacement name for Discogenia Kolbe (Coleoptera: Cucujoidea)
Figure 1. Dorsal and ventral habitus of Propalticus mixtocomatus (John).
Figure 1 in World Catalogue of Propalticidae, with a replacement name for Discogenia Kolbe (Coleoptera: Cucujoidea)
Figure 1. Dorsal and ventral habitus of Propalticus mixtocomatus (John).
Resource competition drives an invasion-replacement event among shrew species on an island
<p>Invasive mammals are responsible for the majority of native species' extinctions on islands. While most of these extinction events will be due to novel interactions between species (e.g. exotic predators and naive prey), it is more unusual to find incidences where a newly invasive species cause the decline/extinction of a native species on an island when they normally coexist elsewhere in their overlapping mainland ranges.</p> <p>We investigated if resource competition between two insectivorous small mammals was playing a significant role in the rapid replacement of the native pygmy shrew (<em>Sorex minutus</em>) in the presence of the recently invading greater white-toothed shrew (<em>Crocidura russula</em>) on the island of Ireland.</p> <p>We used DNA metabarcoding of gut contents from >300 individuals of both species to determine each species' diet and measured the body size (weight and length) during different stages of the invasion in Ireland (before, during, and after the species come into contact with one another) and on a French island where both species have long coexisted (acting as a natural 'control' site). Dietary composition, niche width, and overlap, and body size were compared in these different stages.</p> <p>The body size of the invasive <em>C. russula</em> and the composition of its diet change between when it first invades an area and after it becomes established. During the initial stages of the invasion, individual shrews are larger and consume larger-sized invertebrate prey species. During the later stages of the invasion, <em>C. russula</em> switch to consuming smaller prey taxa that are more essential for the native species. As a result, the level of interspecific dietary overlap increases from between 11–14% when they first come into contact with each other to between 39–46% after the invasion.</p> <p>Here we show that an invasive species can quickly alter its dietary niche in a new environment, ultimately causing the replacement of a native species. In addition, the invasive shrew could also be potentially exhausting the local resources of larger invertebrate species. These subsequent changes in terrestrial invertebrate communities could have severe impacts further downstream on ecosystem functioning and services.</p>
Invader abundance and contraction of niche breadth during replacement of a native gammarid amphipod
<p>The introduction of non-native species to new locations is a growing global phenomenon with major negative effects on native species and biodiversity. Such introductions potentially bring competitors into contact leading to partial or total species replacements. This creates an opportunity to study novel species interactions as they occur, with the potential to address the strength of inter- and intraspecific interactions, most notably competition. Such potential has often not been realized, however, due to the difficulties inherent in detecting rapid and spatially expansive species interactions under natural field conditions. The invasive amphipod crustacean <i>Gammarus pulex</i> has replaced a native species, <i>Gammarus duebeni celticus</i>, in river and lake systems across Europe. This replacement process is at least partially driven by differential parasitism, cannibalism and intraguild predation, but the role of interspecific competition has yet to be resolved. Here, we examine how abundance of an invasive species may affect spatial niche breadth of a native congeneric species. We base our analyses of niche breadth on ordination and factor analysis of biological community and physical parameters, respectively, constituting a summative, multidimensional approach to niche breadth along environmental gradients. Results derived from biological and environmental niche criteria were consistent, although interspecific effects were stronger using the biological niche approach. We show that the niche breadth of the native species is constrained as abundance of the invader increases, but the converse effect does not occur. We conclude that the interaction between invasive <i>G. pulex </i>and native <i>G. d. celticus</i> under natural conditions is consistent with strong interspecific competition whereby a native, weaker competitor is replaced by a superior invasive competitor. This study indicates a strong role of interspecific competition, alongside other known interactions such as differential intraguild predation, in rapid and expansive species replacements following biological invasions.</p>
Raw Data for the article: Continuous Renal Replacement Therapy after Liver Transplantation: Peri-Operative Associated Factors and Impact on Survival
<p>Continuous renal replacement therapy (CRRT) following orthotopic liver transplantation (OLT) is usually started for multifactorial reasons, with variable incidence among series. This paper presents a single-center retrospective observational study on the early use (within one week) of CRRT after consecutive cadaveric OLT from January 2008 to December 2016. Preoperative patient characteristics and intraoperative data were collected, and patients were divided into two groups (CRRT and no CRRT) to explore the factors associated with the use of CRRT. Repeated measurements of postoperative creatinine were analyzed with generalized estimating equation (GEE) models. Among 528 OLT patients, 75 (14.2%) were treated with CRRT at least once in the first week. Patients treated with CRRT showed lower survival in a Kaplan-Meier curve (log-rank <em>p</em> value &lt; 0.01). Patients treated with CRRT had a more severe preoperative profile, with a significantly higher age, MELD, BUN, creatinine, and total bilirubin, as well as a longer surgery time and a higher number of transfusions of red blood cells, plasma, and platelets (all <em>p</em> values &lt; 0.05). In a stepwise multiple analysis, the following characteristics remained independently associated with the use of CRRT: the MELD score OR 1.12 (95% CL: 1.07-1.16), <em>p</em> value &lt; 0.001, and the preoperative value for blood urea nitrogen OR 1.016 (95% CL: 1.010-1.023), <em>p</em> value &lt; 0.001. The early use of CRRT after OLT occurred at a low rate in this large cohort; however, it was associated with worse outcomes. Apart from the preoperative severity, repeated intraoperative hypotension episodes, which were likely modifiable or preventable, were associated with the increased use of CRRT and higher postoperative creatinine.</p>
Targeted Surface Manipulation of Cu/Zn/Ag coatings and Ag/Cu particles based on Sacrificial Element Selection by Electrodeposition and Redox replacement
<p>Dataset Targeted Surface Manipulation of Cu/Zn/Ag coatings and Ag/Cu particles based on Sacrificial Element Selection by Electrodeposition and Redox replacement</p>
Assessment of Fast-Track pathway in hip and knee replacement surgery by propensity score matching on patient-reported outcomes
<p>This is the dataset accompanying the publication "Assessment of Fast-Track pathway in hip and knee replacement surgery by propensity score matching on patient-reported outcomes" published on the Diagnostics journal.</p>
Tissue-engineered vocal fold replacement in swine: Methods for functional and structural analysis.
<p>S2 Data. 5534 pig squeal events investigated in this study, provided in a folder structure sorted by pigs, pre- / post-treatment and recording date as .wav files.</p>
ScienceDex guides
Understand access before you commit
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.