218 results match your criteria: "Leiden Institute of Advanced Computer Science[Affiliation]"

Exploring the Antimycobacterial Potential of Podocarpusflavone A from : In Vitro and In Vivo Insights.

Pharmaceuticals (Basel)

November 2024

Laboratório de Produtos Bioativos (LPBio), Instituto de Ciências Farmacêuticas, Universidade Federal do Rio de Janeiro, Campus Macaé, Macaé 27930-560, RJ, Brazil.

: Tuberculosis (TB) is one of the leading infectious causes of death worldwide, highlighting the importance of identifying new anti-TB agents. In previous research, our team identified antimycobacterial activity in leaf extract; therefore, this study aims to conduct further exploration of its potential. : Classical chromatography was applied for fractionation and spectrometric techniques were utilized for chemical characterization.

View Article and Find Full Text PDF

The Quantum Memory Matrix: A Unified Framework for the Black Hole Information Paradox.

Entropy (Basel)

November 2024

Terra Quantum AG, Kornhausstrasse 25, 9000 St. Gallen, Switzerland.

We present the Quantum Memory Matrix (QMM) hypothesis, which addresses the longstanding Black Hole Information Paradox rooted in the apparent conflict between Quantum Mechanics (QM) and General Relativity (GR). This paradox raises the question of how information is preserved during black hole formation and evaporation, given that Hawking radiation appears to result in information loss, challenging unitarity in quantum mechanics. The QMM hypothesis proposes that space-time itself acts as a dynamic quantum information reservoir, with quantum imprints encoding information about quantum states and interactions directly into the fabric of space-time at the Planck scale.

View Article and Find Full Text PDF

Docking-Informed Machine Learning for Kinome-wide Affinity Prediction.

J Chem Inf Model

December 2024

Department of Molecular Physiology, Leiden Institute of Chemistry, Leiden University, Leiden 2333CC, The Netherlands.

Kinase inhibitors are an important class of anticancer drugs, with 80 inhibitors clinically approved and >100 in active clinical testing. Most bind competitively in the ATP-binding site, leading to challenges with selectivity for a specific kinase, resulting in risks for toxicity and general off-target effects. Assessing the binding of an inhibitor for the entire kinome is experimentally possible but expensive.

View Article and Find Full Text PDF
Article Synopsis
  • * An unsupervised machine learning approach revealed a significant association between reduced cortical surface area in the brain and higher attention problems in children, showing consistent results across different populations.
  • * The findings suggest that attention problems could be a key focus for developing neurobiological models that predict cognitive and academic performance, encouraging further research across different age groups and clinical evaluations.
View Article and Find Full Text PDF

Business intelligence systems for population health management: a scoping review.

JAMIA Open

December 2024

Department of Public Health and Primary Care (PHEG), Leiden University Medical Center (LUMC), The Hague, 2511 DP, The Netherlands.

Objective: Population health management (PHM) is a promising data-driven approach to address the challenges faced by health care systems worldwide. Although Business Intelligence (BI) systems are known to be relevant for a data-driven approach, the usage for PHM is limited in its elaboration. To explore available scientific publications, a systematic review guided by PRISMA was conducted of mature BI initiatives to investigate their decision contexts and BI capabilities.

View Article and Find Full Text PDF

Acute retinal pigment epitheliitis using adaptive optics imaging: a case report.

BMC Ophthalmol

November 2024

Department of Ophthalmology, Erasmus MC, University Medical Center, Rotterdam, The Netherlands.

Article Synopsis
  • Acute Retinal Pigment Epitheliitis (ARPE) is a rare eye disorder mostly affecting young adults, leading to temporary vision loss, often resolving within 6 to 12 weeks.
  • The condition was studied in two patients using advanced imaging techniques like Optical Coherence Tomography (OCT) and Adaptive Optics Flood Illumination Ophthalmoscopy (AO-FIO), revealing insights into retinal changes and recovery.
  • Both patients showed initial vision loss but eventually regained eyesight, although some retinal structural changes persisted even after improvement, highlighting the disease's complex nature.
View Article and Find Full Text PDF

Multimodal machine learning for language and speech markers identification in mental health.

BMC Med Inform Decis Mak

November 2024

Leiden Institute of Advanced Computer Science, Leiden University, Leiden, The Netherlands.

Background: There are numerous papers focusing on diagnosing mental health disorders using unimodal and multimodal approaches. However, our literature review shows that the majority of these studies either use unimodal approaches to diagnose a variety of mental disorders or employ multimodal approaches to diagnose a single mental disorder instead. In this research we combine these approaches by first identifying and compiling an extensive list of mental health disorder markers for a wide range of mental illnesses which have been used for both unimodal and multimodal methods, which is subsequently used for determining whether the multimodal approach can outperform the unimodal approaches.

View Article and Find Full Text PDF

This study addresses the research problem of enhancing Fertilization (IVF) success rate prediction by integrating advanced machine learning paradigms with gynecological expertise. The methodology involves the analysis of comprehensive datasets from 2017 to 2018 and 2010-2016. Machine learning models, including Logistic Regression, Gaussian NB, SVM, MLP, KNN, and ensemble models like Random Forest, AdaBoost, Logit Boost, RUS Boost, and RSM, were employed.

View Article and Find Full Text PDF

DPD (DePression Detection) Net: a deep neural network for multimodal depression detection.

Health Inf Sci Syst

December 2024

Leiden Institute of Advanced Computer Science (LIACS), Leiden University, Niels Bohrweg 1, 2333CA Leiden, Netherlands.

Article Synopsis
  • Depression is a widespread mental health issue that can negatively affect people's productivity and well-being, making accurate diagnosis challenging since it often relies on subjective interviews.
  • This study introduces two deep learning models, DePressionDetect Net (DPD Net) and DePressionDetect-with-EEG Net (DPD-E Net), designed to automatically detect depression by integrating various data types—text, audio, and visual—using advanced neural network techniques.
  • Experimental results on multiple benchmark datasets indicate that these models outperform existing methods, showing the benefits of combining different modalities for more accurate and robust depression detection.
View Article and Find Full Text PDF

QSPRpred: a Flexible Open-Source Quantitative Structure-Property Relationship Modelling Tool.

J Cheminform

November 2024

Computational Drug Discovery, Leiden Academic Centre for Drug Research, Leiden University, Einsteinweg 55, Leiden, 2333 CC, The Netherlands.

Building reliable and robust quantitative structure-property relationship (QSPR) models is a challenging task. First, the experimental data needs to be obtained, analyzed and curated. Second, the number of available methods is continuously growing and evaluating different algorithms and methodologies can be arduous.

View Article and Find Full Text PDF

Aims: Adults with type 2 diabetes have an increased risk of cardiovascular events (CVE), the world's leading cause of mortality. The SCORE2-Diabetes model is a tool designed to estimate the 10-year risk of CVE specifically in individuals with type 2 diabetes. However, the performance of such models may vary across different demographic and socioeconomic groups, necessitating validation and assessment in diverse populations.

View Article and Find Full Text PDF
Article Synopsis
  • * The study benchmarks this transformer model against existing models, finding that utilizing AlphaFold protein representations leads to better clustering and model performance compared to raw amino acid sequences, especially in low-data situations.
  • * The model successfully generates diverse and potentially active molecules that resemble known ligands while ensuring novelty, and showcases the significance of data augmentation in improving generative model performance.
View Article and Find Full Text PDF

The design of the microelectromechanical system (MEMS) disc resonator gyroscope (DRG) structural topology is crucial for its physical properties and performance. However, creating novel high-performance MEMS DRGs has long been viewed as a formidable challenge owing to their enormous design space, the complexity of microscale physical effects, and time-consuming finite element analysis (FEA). Here, we introduce a new machine learning-driven approach to discover high-performance DRG topologies.

View Article and Find Full Text PDF

Advancements in maize disease detection: A comprehensive review of convolutional neural networks.

Comput Biol Med

December 2024

Department of Industrial Engineering, Mudanya University, 16940, Mudanya, Bursa, Turkiye; Leiden Institute of Advanced Computer Science, Leiden University, Leiden, Netherlands. Electronic address:

Article Synopsis
  • - This article reviews how Convolutional Neural Networks (CNNs) are changing the way we detect diseases in maize, a crucial crop for food security worldwide.
  • - It discusses the importance of data preprocessing, various disease types, and the algorithms used, giving insights into performance metrics like accuracy and F1 score.
  • - The review highlights the challenges in current detection methods, future research paths, and the overall promise of AI and CNNs in improving maize health management.
View Article and Find Full Text PDF
Article Synopsis
  • Identifying early-stage mycosis fungoides (MF), a type of skin cancer, is hard because it looks a lot like harmless skin conditions.
  • Researchers are using deep learning (DL), a type of computer technology, to help doctors tell the difference between MF and these benign conditions by looking at images from skin biopsies.
  • The study showed that this DL method can get pretty close to the accuracy of expert doctors, which is promising for improving cancer diagnoses in the future.
View Article and Find Full Text PDF
Article Synopsis
  • The study aims to understand the lifestyle and motivation of cardiovascular disease patients starting cardiac rehabilitation (CR), focusing on their needs for effective lifestyle changes.
  • Researchers analyzed data from 1782 patients across 7 Dutch outpatient CR centers, finding that many patients had elevated risks related to physical activity, diet, and sleep, with motivation generally being high but lower in those with unfavorable risk profiles.
  • Results suggest that CR programs should begin with detailed lifestyle assessments and offer personalized interventions to meet diverse patient needs, potentially improving motivation, adherence, and long-term cardiovascular health outcomes.
View Article and Find Full Text PDF

Tuberculosis (TB) is a world health challenge the treatment of which is impacted by the rise of drug-resistant strains. Thus, there is an urgent need for new antitubercular compounds and novel approaches to improve current TB therapy. The zebrafish animal model has become increasingly relevant as an experimental system.

View Article and Find Full Text PDF

Multivariate machine learning techniques are a promising set of tools for identifying complex brain-behavior associations. However, failure to replicate results from these methods across samples has hampered their clinical relevance. Here we aimed to delineate dimensions of brain functional connectivity that are associated with child psychiatric symptoms in two large and independent cohorts: the Adolescent Brain Cognitive Development (ABCD) Study and the Generation R Study (total n = 6935).

View Article and Find Full Text PDF

Efficient and accurate classification of DNA barcode data is crucial for large-scale fungal biodiversity studies. However, existing methods are either computationally expensive or lack accuracy. Previous research has demonstrated the potential of deep learning in this domain, successfully training neural networks for biological sequence classification.

View Article and Find Full Text PDF

On the evaluation of synthetic longitudinal electronic health records.

BMC Med Res Methodol

August 2024

Public Health and Primary Care, Health Campus The Hague, Leiden University Medical Center, Albinusdreef 2, Leiden, South-Holland, 2333ZA, Netherlands.

Background: Synthetic Electronic Health Records (EHRs) are becoming increasingly popular as a privacy enhancing technology. However, for longitudinal EHRs specifically, little research has been done into how to properly evaluate synthetically generated samples. In this article, we provide a discussion on existing methods and recommendations when evaluating the quality of synthetic longitudinal EHRs.

View Article and Find Full Text PDF

Deep-learning algorithms for cell segmentation typically require large data sets with high-quality annotations to be trained with. However, the annotation cost for obtaining such sets may prove to be prohibitively expensive. Our work aims to reduce the time necessary to create high-quality annotations of cell images by using a relatively small well-annotated data set for training a convolutional neural network to upgrade lower-quality annotations, produced at lower annotation costs.

View Article and Find Full Text PDF

Advancements in rice disease detection through convolutional neural networks: A comprehensive review.

Heliyon

June 2024

Leiden Institute of Advanced Computer Science, Leiden University, Leiden, the Netherlands.

This review paper addresses the critical need for advanced rice disease detection methods by integrating artificial intelligence, specifically convolutional neural networks (CNNs). Rice, being a staple food for a large part of the global population, is susceptible to various diseases that threaten food security and agricultural sustainability. This research is significant as it leverages technological advancements to tackle these challenges effectively.

View Article and Find Full Text PDF

Multiple graphical views for automatically generating SQL for the MycoDiversity DB; making fungal biodiversity studies accessible.

Biodivers Data J

June 2024

Leiden Institute of Advanced Computer Science (LIACS), Leiden University, Leiden, Netherlands Leiden Institute of Advanced Computer Science (LIACS), Leiden University Leiden Netherlands.

Fungi is a highly diverse group of eukaryotic organisms that live under an extremely wide range of environmental conditions. Nowadays, there is a fundamental focus on observing how biodiversity varies on different spatial scales, in addition to understanding the environmental factors which drive fungal biodiversity. Metabarcoding is a high-throughput DNA sequencing technology that has positively contributed to observing fungal communities in environments.

View Article and Find Full Text PDF