2,176 results match your criteria: "Big Data Institute[Affiliation]"
Eur J Prev Cardiol
December 2024
Cardiovascular and Genomics Institute, City St George's University of London, Cranmer Terrace, London SW17 0RE, UK.
Aims: Sudden arrhythmic death syndrome (SADS) refers to a sudden death, which remains unexplained despite comprehensive post-mortem examination and a toxicological screen. We aimed to investigate the impact of age and sex on the overall diagnostic yield and underlying aetiology in decedents with SADS using a combined approach of familial evaluation (FE) and molecular autopsy (MA).
Methods And Results: Consecutive referrals to a single centre for FE only, MA only or both, following a SADS death were included.
J Pathol
February 2025
Department of Pathology and Molecular Pathology, University Hospital and University of Zurich, Zurich, Switzerland.
Tumour content plays a pivotal role in directing the bioinformatic analysis of molecular profiles such as copy number variation (CNV). In clinical application, tumour purity estimation (TPE) is achieved either through visual pathological review [conventional pathology (CP)] or the deconvolution of molecular data. While CP provides a direct measurement, it demonstrates modest reproducibility and lacks standardisation.
View Article and Find Full Text PDFLancet Glob Health
January 2025
Big Data Institute, Nuffield Department of Population Health, University of Oxford, Oxford, UK. Electronic address:
Background: Periportal fibrosis is a severe morbidity caused by both current and past exposure to intestinal schistosomes. We aimed to assess the association between current infection status and intensity of Schistosoma mansoni, Schistosoma japonicum, or Schistosoma mekongi with periportal fibrosis.
Methods: In this systematic review and meta-analysis, we searched the Cochrane Central Register of Controlled Trials, Embase, Global Health, Global Index Medicus, and MEDLINE from database inception to June 18, 2024.
PeerJ Comput Sci
August 2024
School of E-commerce and Logistics Management, Henan University of Economics and Law, Zhengzhou, China.
In this study, a novel algorithm named the Edge-enhanced Generative Adversarial Network (EGAN) is proposed to address the issues of noise corruption and edge fuzziness in the super-resolution of remote sensing images. To build upon the baseline model called Deep Blind Super-Resolution GAN (DBSR-GAN), an edge enhancement module is introduced to enhance the edge information of the images. To enlarge the receptive field of the algorithm, the Mask branch within the edge enhancement structure is further optimized.
View Article and Find Full Text PDFEnviron Int
December 2024
Clinical Trial Service Unit and Epidemiological Studies Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK.
Proc Natl Acad Sci U S A
December 2024
Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford OX3 7LF, United Kingdom.
parasites can lie dormant in the liver as hypnozoites, activating weeks to months after sporozoite inoculation to cause relapsing malarial illness. It is not known what biological processes govern hypnozoite activation. We use longitudinal data from the most detailed cohort study ever conducted in an area where both and were endemic to fit a simple within-host mathematical model of hypnozoite activation.
View Article and Find Full Text PDFPLoS Biol
December 2024
Department of Vector Biology, Liverpool School of Tropical Medicine, Liverpool, United Kingdom.
To keep ahead of the evolution of resistance to insecticides in mosquitoes, national malaria control programmes must make use of a range of insecticides, both old and new, while monitoring resistance mechanisms. The outdoor-biting malaria vector Anopheles arabiensis is of increasing concern for malaria transmission because it is apparently less susceptible to many indoor control interventions, yet knowledge of its mechanisms of resistance remains limited. Furthermore, comparatively little is known in general about resistance to non-pyrethroid insecticides such as pirimiphos-methyl (PM), which are crucial for effective control in the context of globally high resistance to pyrethroids.
View Article and Find Full Text PDFBMJ Open
December 2024
Development Centre for Population Health, University of Leicester, Leicester, UK
Introduction: Understanding how RNA viral load changes (viral load kinetics) during acute infection in SARS-CoV-2 can help to identify when and which patients are most infectious. We seek to summarise existing data on the longitudinal RNA viral load kinetics of SARS-CoV-2 sampled from different parts of the respiratory tract (nose, nasopharynx, oropharynx, saliva and exhaled breath) and how this may vary with age, sex, ethnicity, immune status, disease severity, vaccination, treatment and virus variant.
Methods And Analysis: We will conduct a systematic review and meta-analysis, using studies identified through MEDLINE and EMBASE (via Ovid).
J Infect
December 2024
Big Data Institute, Nuffield Department of Population Health, University of Oxford, Oxford, UK; The National Institute for Health Research Oxford Biomedical Research Centre, University of Oxford, Oxford, UK; Department of Infectious Diseases and Microbiology, Oxford University Hospitals NHS Foundati
Neural Netw
February 2025
Big Data Institute, School of Computer Science and Engineering, Central South University, ChangSha, Hunan, 410000, China. Electronic address:
With the emergence of massive amounts of multi-source heterogeneous data on the Internet, quickly retrieving effective information from this extensive data has become a hot research topic. Due to the efficiency and speed of hash learning methods in multimedia retrieval, they have become a mainstream method for multimedia retrieval. However, unsupervised multimedia hash learning methods still face challenges with the difficulties of tuning due to the excessive number of hyperparameters and the lack of precise guidance on semantic similarity.
View Article and Find Full Text PDFNat Genet
December 2024
Institute of Health Informatics, University College London, London, UK.
Neural Netw
February 2025
Big Data Institute, Central South University, Changsha, 410083, China. Electronic address:
PLoS Comput Biol
November 2024
Pandemic Sciences Institute, Nuffield Department of Medicine, University of Oxford, Oxford, United Kingdom.
The ability to predict HIV-1 resistance to broadly neutralizing antibodies (bnAbs) will increase bnAb therapeutic benefits. Machine learning is a powerful approach for such prediction. One challenge is that some HIV-1 subtypes in currently available training datasets are underrepresented, which likely affects models' generalizability across subtypes.
View Article and Find Full Text PDFCommun Med (Lond)
November 2024
Big Data Institute, Nuffield Department of Population Health, University of Oxford, Oxford, UK.
Background: Accurately predicting hospital discharge events could help improve patient flow and the efficiency of healthcare delivery. However, using machine learning and diverse electronic health record (EHR) data for this task remains incompletely explored.
Methods: We used EHR data from February-2017 to January-2020 from Oxfordshire, UK to predict hospital discharges in the next 24 h.
Adv Nutr
December 2024
Institute for Molecular Bioscience, the University of Queensland, Brisbane, QLD, Australia.
Vitamins play an intrinsic role in human health and are targets for clinical intervention through dietary or pharmacological approaches. Biomarkers of vitamin status are complex traits, measurable phenotypes that arise from an interplay between dietary and other environmental factors with a genetic component that is polygenic, meaning many genes are plausibly involved. Studying these genetic influences will improve our knowledge of fundamental vitamin biochemistry, refine estimates of the effects of vitamins on human health, and may in future prove clinically actionable.
View Article and Find Full Text PDFBrain Commun
November 2024
Centre for Preventive Neurology, Wolfson Institute of Population Health, Queen Mary University of London, London EC1M 6BQ, UK.
Lower lung function is associated with lower cognitive function and an increased risk of dementia. This has not been adequately explained and may partly reflect shared developmental pathways. In UK Biobank participants of European ancestry, we tested the association between lung function measures (forced vital capacity and forced expiratory volume in 1 s to forced vital capacity ratio; = 306 476) and cognitive traits including nine cognitive function test scores ( = 32 321-428 609), all-cause dementia, Alzheimer's disease and vascular dementia (6805, 2859 and 1544 cases, respectively, and ∼421 241 controls).
View Article and Find Full Text PDFLancet Microbe
December 2024
MRC Centre for Genomics and Global Health, Big Data Institute, Oxford University, Oxford, UK.
Background: The population structure of the malaria parasite Plasmodium falciparum can reveal underlying adaptive evolutionary processes. Selective pressures to maintain complex genetic backgrounds can encourage inbreeding, producing distinct parasite clusters identifiable by population structure analyses.
Methods: We analysed population structure in 3783 P falciparum genomes from 21 countries across Africa, provided by the MalariaGEN Pf7 dataset.
Animals (Basel)
October 2024
Istituto Zooprofilattico Sperimentale della Sardegna, 07100 Sassari, Italy.
Canine distemper virus (CDV) is the etiological agent of a highly prevalent viral infectious disease of carnivores, which could seriously lead to a threat to the conservation of the affected species worldwide [...
View Article and Find Full Text PDFSensors (Basel)
October 2024
Big Data Institute of Digital Natural Disaster Monitoring in Fujian, Xiamen University of Technology, Xiamen 361024, China.
The rise of complex high-rise buildings has made building management increasingly challenging, especially the nighttime supervision of university laboratories. Idle occupation increases the risk of accidents and undermines campus sustainability. Effective occupancy detection is essential for optimizing campus building safety and energy efficiency.
View Article and Find Full Text PDFNat Commun
November 2024
Big Data Institute, Nuffield Department of Population Health, University of Oxford, Oxford, United Kingdom.
J Epidemiol Community Health
February 2025
National Perinatal Epidemiology Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK.
BMC Ophthalmol
November 2024
Department of Population Health, Clinical Trial Service Unit and Epidemiological Studies Unit, University of Oxford, Nuffield, Richard Doll Building, Old Road Campus, Roosevelt Drive, Oxford, OX3 7LF, UK.
Background: The double-blind, 2 × 2 factorial design, placebo-controlled ASCEND randomized trial compared the effects of 100 mg aspirin daily and, separately, 1 g omega-3 fatty acids (FAs) daily on the primary prevention of cardiovascular disease in 15,480 UK adults with diabetes. We report the effects of these randomized treatment allocations on scores derived from the National Eye Institute's Visual Function Questionnaire-25 (NEI-VFQ-25) in a subset of participants involved in the ASCEND-Eye sub-study.
Methods: Ordinal data from the NEI-VFQ-25 were analyzed using proportional odds regression methods.
Gac Sanit
December 2024
École de Santé Publique, Université de Montréal, Montréal, Québec, Canada.
Objective: We aimed to estimate regional inequalities in excess deaths and premature mortality in Spain during 2020 and 2021, before high vaccination coverage against COVID-19.
Method: With data from the National Institute of Statistics, within each region, sex, and age group, we estimated the excess deaths, the change in life expectancy at birth (e) and age 65 (e) and years of life lost as the difference between the observed and expected deaths using a time series analysis of 2015-2019 data and life expectancies based on Lee-Carter forecasting using 2010-2019 data.
Results: From January 2020 to June 2021, an estimated 89,200 (men: 48,000; women: 41,200) excess deaths occurred in Spain with a substantial regional variability (highest in Madrid: 22,000, lowest in Canary Islands: -210).
Health Technol Assess
October 2024
National Perinatal Epidemiology Unit Clinical Trials Unit, Nuffield Department of Population Health, University of Oxford, Oxford, UK.
Background: Neonates undergoing emergency abdominal surgery frequently require a stoma; closing this stoma with a second operation is an essential part of recovery. Timing of closure varies. Optimal timing is unclear and would be best resolved through a randomised controlled trial; such a trial is likely to be challenging.
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