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111 results for “twin study”
Santa Barbara Coastal site, station Santa Cruz Island, Twin Harbor West, Santa Barbara Channel, study of animal density of Semicossyphus pulcher in units of numberPerMeterSquared on a yearly timescale
The EcoTrends project was established in 2004 by Dr. Debra Peters (Jornada Basin LTER, USDA-ARS Jornada Experimental Range) and Dr. Ariel Lugo (Luquillo LTER, USDA-FS Luquillo Experimental Forest) to support the collection and analysis of long-term ecological datasets. The project is a large synthesis effort focused on improving the accessibility and use of long-term data. At present, there are ~50 state and federally funded research sites that are participating and contributing to the EcoTrends project, including all 26 Long-Term Ecological Research (LTER) sites and sites funded by the USDA Agriculture Research Service (ARS), USDA Forest Service, US Department of Energy, US Geological Survey (USGS) and numerous universities. Data from the EcoTrends project are available through an exploratory web portal (http://www.ecotrends.info). This web portal enables the continuation of data compilation and accessibility by users through an interactive web application. Ongoing data compilation is updated through both manual and automatic processing as part of the LTER Provenance Aware Synthesis Tracking Architecture (PASTA). The web portal is a collaboration between the Jornada LTER and the LTER Network Office. The following dataset from Santa Barbara Coastal (SBC) contains animal density of Semicossyphus pulcher measurements in numberPerMeterSquared units and were aggregated to a yearly timescale.
A Cross-Domain Systematic Mapping Study on Software Engineering for Digital Twins
<p><strong>A Systematic Cross-Domain Mapping Study on the Software Engineering of Digital Twins</strong></p> <p>Manuela Dalibor, Nico Jansen, Bernhard Rumpe, David Schmalzing, Louis Wachtmeister, Manuel Wimmer, and Andreas Wortmann</p> <p>Digital Twins are currently investigated as the technological backbone for providing an enhanced understanding and management of existing systems as well as for designing new systems in various domains, e.g., ranging from single manufacturing components such as sensors to large-scale systems such as smart cities. Given the diverse application domains of Digital Twins, it is not surprising that the characterization of the term Digital Twin, as well as the needs for developing and operating Digital Twins are multi-faceted. Providing a better understanding what the commonalities and differences of Digital Twins in different contexts are, may allow to build reusable support for developing, running, and managing Digital Twins by providing dedicated concepts, techniques, and tool support. In this paper, we aim to uncover the nature of Digital Twins based on a systematic mapping study which is not limited to a particular application domain or technological space. We systematically retrieved a set of 1471 unique publications of which 529 were identified as potentially relevant and of which finally 356 were selected for further investigation. In particular, we analyzed the types of research and contributions made for Digital Twins, the expected properties Digital Twins have to fulfill, how Digital Twins are realized and operated, as well as how Digital Twins are finally evaluated. Based on this analysis, we also contribute a novel feature model for Digital Twins as well as several observations to further guide future software engineering research in this area.</p>
Unequal Placental Sharing in Monochorionic Diamniotic Twins: an Observational Study
ClinicalTrials.gov study NCT03024918. IPD Sharing: UNDECIDED. Countries: 1. Publications: 31.
Oxytocin at Elective Cesarean Deliveries: A Dose-finding Study in Women With Twin Pregnancy
ClinicalTrials.gov study NCT04025658. IPD Sharing: Not stated. Countries: 1. Publications: 1.
National Prospective and Comparative Study on the Mode of Delivery of Twins
ClinicalTrials.gov study NCT01987063. IPD Sharing: Not stated. Countries: 1. Publications: 7.
Twins Study of Gene Therapy for HIV Infection
ClinicalTrials.gov study NCT00001535. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Safety and Survival of Genetically Modified White Blood Cells in HIV-infected Twins The Gemini Study
ClinicalTrials.gov study NCT04799483. IPD Sharing: Not stated. Countries: 1. Publications: 3.
TRAP Intervention STudy: Early Versus Late Intervention for Twin Reversed Arterial Perfusion Sequence
ClinicalTrials.gov study NCT02621645. IPD Sharing: Not stated. Countries: 11. Publications: 11.
Genetically Modified Lymphocytes to Treat HIV-Infected Identical Twins - Study Modifications
ClinicalTrials.gov study NCT00001409. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Effects of ACS in Twin With LPB: Study Protocol for a RCT
ClinicalTrials.gov study NCT03547791. IPD Sharing: UNDECIDED. Countries: 1. Publications: 3.
Study of Families With Twins or Siblings Discordant for Rheumatic Disorders
ClinicalTrials.gov study NCT00055055. IPD Sharing: UNDECIDED. Countries: 1. Publications: 3.
Safety and Survival of Genetically Modified White Blood Cells in HIV-Infected Persons - A Study in Identical Twin Pairs
ClinicalTrials.gov study NCT00001353. IPD Sharing: Not stated. Countries: 1. Publications: 3.
Birth Weight-discordance in Twins Pregnancy: a Multicenter Retrospective Study
ClinicalTrials.gov study NCT05674214. IPD Sharing: NO. Countries: 1. Publications: 7.
Assessment of Changes in Labioincisal Relationship in Deep Bite Correction by Twin Slot Orthodontic Bracket Clinical Trial Study.
ClinicalTrials.gov study NCT06677619. IPD Sharing: NO. Countries: 1. Publications: 1.
The NICHD Fetal Growth Study: Twin Gestations
ClinicalTrials.gov study NCT01369940. IPD Sharing: Not stated. Countries: 1. Publications: 2.
Twins Nutrition Study (TwiNS): Vegan vs. Omnivore
ClinicalTrials.gov study NCT05297825. IPD Sharing: NO. Countries: 1. Publications: 3.
Twins MR Imaging Study
ClinicalTrials.gov study NCT06014567. IPD Sharing: YES. Countries: 1. Publications: 2.
Effect of pre-twinning on deformation behavior of [0001]-textured nanocrystalline Mg: a molecular dynamics study
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Phenotypes of painful TMD in discordant monozygotic twins according to a cognitive-behavioral-emotional model: a case-control study
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Lens fluorescence and skin fluorescence in the Copenhagen Twin Cohort Eye Study: Covariates and heritability
<p>Lens and skin fluorescence are related to the systemic accumulation of advanced glycation end products, which is accelerated in diabetes. We have examined lens fluorescence and skin fluorescence in healthy adult twins. The study enrolled twins aged median 59 years from a national population-based registry. Diabetic individuals were excluded from analysis. The interrelatedness between fluorescence parameters and relations between fluorescence and age, current HbA<sub>1c</sub> and smoking pack years were examined using correlation tests and mixed model linear regression analyses. Broad-sense heritability was analyzed and compared for lens fluorescence, skin fluorescence and HbA<sub>1c</sub>. Lens fluorescence and skin fluorescence were crudely interrelated (R = 0.38). In linear regression analyses, age explained a larger fraction of the variance in lens fluorescence (R<sup>2</sup> = 32 %) than in skin fluorescence (R<sup>2</sup> = 20 %), whereas HbA<sub>1c</sub> explained smaller variance fractions (R<sup>2</sup> = 3 % and 8 %, respectively) followed by smoking pack years (4 % and 3 %, respectively). In multivariate analyses, age, HbA<sub>1c</sub> and smoking pack years combined explained more of the variance in lens fluorescence (R<sup>2</sup> = 35 %) than in skin fluorescence (R<sup>2</sup> = 21 %), but the influence of HbA<sub>1c</sub> on lens fluorescence was not statistically significant (p = .2). Age-adjusted broad-sense heritability was 85 % for lens fluorescence, 53 % for skin fluorescence and 71 % for HbA<sub>1c </sub>in best fitting heritability models. Both fluorescence parameters increased with age, current glycemia and cumulative smoking. Lens fluorescence was found to be a predominantly heritable trait, whereas skin fluorescence was more influenced by environmental factors and closer related to current glycemia. The results suggest that skin fluorophores have a faster turn-over than lens fluorophores.</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)
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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.