Vivek Kurien George

ORCID: 0000-0001-5710-727X
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About
Contact & Profiles
Research Areas
  • Neural dynamics and brain function
  • Genetics, Aging, and Longevity in Model Organisms
  • Advanced Memory and Neural Computing
  • Neural Networks and Applications
  • Neuroscience and Neural Engineering
  • Gene Regulatory Network Analysis
  • Cell Image Analysis Techniques
  • Topological and Geometric Data Analysis
  • Neuroscience and Neuropharmacology Research
  • Advanced Graph Theory Research
  • Advanced Fluorescence Microscopy Techniques
  • Functional Brain Connectivity Studies
  • Circadian rhythm and melatonin
  • Data Visualization and Analytics
  • Complex Network Analysis Techniques
  • VLSI and FPGA Design Techniques
  • Psoriasis: Treatment and Pathogenesis
  • Immunotherapy and Immune Responses
  • Skin Diseases and Diabetes
  • Neonatal and Maternal Infections
  • Long-Term Effects of COVID-19
  • Advanced Algebra and Logic
  • Sustainability and Ecological Systems Analysis
  • Photosynthetic Processes and Mechanisms
  • Neuroinflammation and Neurodegeneration Mechanisms

Lawrence Livermore National Laboratory
2023-2025

University of California, San Diego
2018-2024

Sree Gokulam Medical College and Research Foundation
2020-2023

La Jolla Bioengineering Institute
2021-2022

The category of directed graphs is isomorphic to a particular whose objects are labeled undirected bipartite and morphisms graph that respect the labeling. Based on this isomorphism, we begin by showing class all Graph Isomorphism Complete class. Afterwards, extending categorical framework weighted prime graphs, prove categories multidirected with without self-loops each graphs. Consequently, these classes also Complete.

10.3390/math13020228 article EN cc-by Mathematics 2025-01-11

Cognitive impairment is one of the many symptoms reported by individuals suffering from long-COVID and other post-viral infection disorders such as myalgic encephalomyelitis/chronic fatigue syndrome (ME/CFS). A common factor among these conditions a sustained immune response increased levels inflammatory cytokines. Tumor necrosis alpha (TNF-α) interleukin-6 (IL-6) are two cytokines that elevated in patients diagnosed with ME/CFS. In this study, we characterized changes neural functionality,...

10.3389/fncel.2025.1512591 article EN cc-by Frontiers in Cellular Neuroscience 2025-02-12

Although a number of studies have explored deep learning in neuroscience, the application these algorithms to neural systems on microscopic scale, i.e. parameters relevant lower scales organization, remains relatively novel. Motivated by advances whole-brain imaging, we examined performance models dynamics and resulting emergent behaviors using calcium imaging data from nematode C. elegans . As one only species for which neuron-level can be recorded, serves as ideal organism designing...

10.3389/frai.2021.618372 article EN cc-by Frontiers in Artificial Intelligence 2021-02-23

While there is a growing appreciation of three-dimensional (3D) neural tissues (i.e., hydrogel-based, organoids, and spheroids), shown to improve cellular health network activity mirror brain-like in vivo, functional assessment using current electrophysiology techniques (e.g., planar multi-electrode arrays or patch clamp) has been technically challenging limited surface measurements at the bottom top 3D tissue. As next-generation MEAs, specifically are being developed increase spatial...

10.3389/fncel.2023.1287089 article EN cc-by Frontiers in Cellular Neuroscience 2023-11-13

We use Category Theory to construct a ‘bridge’ relating directed graphs with undirected graphs, such that the notion of direction is preserved. Specifically, we provide an isomorphism between category simple and call ‘prime category’; this has as objects labeled bipartite (which prime graphs), morphisms graph preserve labeling morphisms). This theoretical bridge allows us extend techniques by converting into graphs. To give proof concept, show our construction preserves topological features...

10.3390/math12091357 article EN cc-by Mathematics 2024-04-29

Organophosphorus nerve agents (OPNA) are hazardous environmental exposures to the civilian population and have been historically weaponized as chemical warfare (CWA). OPNA exposure can lead several neurological, sensory, motor symptoms that manifest into chronic neurological illnesses later in life. There is still a large need for technological advancement better understand changes brain function following exposure. The human-relevant

10.3389/fncel.2024.1378579 article EN cc-by Frontiers in Cellular Neuroscience 2024-09-05

Dynamic signaling on branching axons is critical for rapid and efficient communication between neurons in the brain. Efficient axon arbors depends a trade-off time it takes action potentials to reach synaptic terminals (temporal cost) amount of cellular material associated with wiring path length neuron's morphology (material cost). However, where balance structural dynamical considerations achieving efficiency is, design principle that optimize preserve this balance, still elusive. In work,...

10.1038/s41598-018-28527-2 article EN cc-by Scientific Reports 2018-07-05

We introduce a novel yet straightforward neural network initialization scheme that modifies conventional methods like Xavier and Kaiming initialization. Inspired by the concept of emergence leveraging measures proposed Li (2023), our method adjusts layer-wise weight scaling factors to achieve higher values. This enhancement is easy implement, requiring no additional optimization steps for compared GradInit. evaluate approach across various architectures, including MLP convolutional...

10.48550/arxiv.2407.19044 preprint EN arXiv (Cornell University) 2024-07-26

Analysis of the dynamics complex networks can provide valuable information. For example, be used to characterize and differentiate between different network inputs configurations. However, without quantitatively delineating network's dynamic regimes, analysis is based on heuristics qualitative signatures transient or steady-state regimes. This not ideal because interesting phenomena occur during regime, at transition two Moreover, for simulated observed systems, precise knowledge dynamical...

10.1016/j.heliyon.2023.e13913 article EN cc-by-nc-nd Heliyon 2023-03-01

The integration and transmission of information in the brain are dependent on interplay between structural dynamical properties. Implicit any pursuit aimed at understanding neural dynamics from appropriate sets mathematically bounded conditions is notion an underlying fundamental structure-function constraint imposed by geometry networks resultant latencies involved with transfer information. We recently described construction theoretical analysis a framework that models how local rules give...

10.48550/arxiv.2006.15971 preprint EN other-oa arXiv (Cornell University) 2020-01-01

Understanding how the structural connectivity and spatial geometry of a network constrains dynamics it is able to support an active open area research. We simulated plausible resulting from known C. elegans connectome using recent model theoretical analysis that computes neurobiological networks by focusing on local interactions among connected neurons give rise global in emergent way. studied which resulted stimulating chemosensory neuron (ASEL) feeding circuit, both isolation embedded full...

10.3389/fnsys.2021.564124 article EN cc-by Frontiers in Systems Neuroscience 2021-03-09

Abstract Understanding how the structural connectivity of a network constrains dynamics it is able to support very active and open area research. We simulated plausible resulting from known C. elegans connectome using recent model theoretical analysis that computes neurobiological networks by focusing on local interactions among connected neurons give rise global in an emergent way, independent biophysical or molecular details cells themselves. studied which resulted stimulating chemosensory...

10.1101/2020.05.08.085191 preprint EN cc-by-nc-nd bioRxiv (Cold Spring Harbor Laboratory) 2020-05-10

Background: Neonatal septicemia is defined as a clinical syndrome characterized by systemic signs and symptoms caused bacterial infection gives positive blood culture in the first month of life. It associated with high morbidity mortality, but early diagnosis treatment significantly improve outcomes. The present study brings out quick cost- effective Hematological Scoring System that enables neonatal sepsis
 Method: This was conducted Department Pathology Sree Gokulam Medical College...

10.21276/apalm.2894 article EN Annals of Pathology and Laboratory Medicine 2020-10-29

The success of state-of-the-art machine learning is essentially all based on different variations gradient descent algorithms that minimize some version a cost or loss function. A fundamental limitation, however, the need to train these systems in either supervised unsupervised ways by exposing them typically large numbers training examples. Here, we introduce fundamentally novel conceptual approach takes advantage neurobiologically derived model dynamic signaling, constrained geometric...

10.48550/arxiv.2103.08878 preprint EN cc-by arXiv (Cornell University) 2021-01-01

Breast cancer is a significant cause of mortality in Indian women, characterized by increasing incidence younger individuals and heightened aggressiveness 1, 2 . The understanding molecular subtypes, especially those defined hormone receptor expression (ER, PR, HER2), pivotal for clinical management 3, 4 BCL2, proto-oncogene, adds complexity as its overexpression breast paradoxically associates with improved survival 6 This study aims to investigate BCL2 carcinoma relationship other...

10.21275/sr231011200156 article EN International Journal of Science and Research (IJSR) 2023-10-05

Abstract Spike-timing dependent plasticity (STDP) is widely accepted as a mechanism through which the brain can learn information. Basing synaptic changes on timing between spikes enhances contributing edges within network. While STDP rules control evolution of networks, most research focuses spiking rates or specific activation paths when evaluating learned imaging studies demonstrate physical to synapses due STDP, these have not been interrogated based their embedding capacity stimulus...

10.21203/rs.3.rs-3576634/v1 preprint EN cc-by Research Square (Research Square) 2023-11-13

BACKGROUND
 Menometrorrhagia is a common cause of iron deficiency anemia (IDA) in women reproductive age group. Latent (LID) precursor stage IDA which there evidence without anemia. LID causes cognitive impairment, impaired immunity and reduced work capacity can be corrected by supplementation. Conventional biochemical hematological parameters have limitations the diagnosis LID. This study was done to assess performance characteristics percentage hypochromic red cells (% HYPO) detection...

10.14260/jemds.v12i12.525 article EN Journal of Evolution of Medical and Dental Sciences 2023-12-30

Although a number of studies have explored deep learning in neuroscience, the application these algorithms to neural systems on microscopic scale, i.e. parameters relevant lower scales organization, remains relatively novel. Motivated by advances whole-brain imaging, we examined performance models dynamics and resulting emergent behaviors using calcium imaging data from nematode C. elegans. We show that networks perform remarkably well both neuron-level prediction, behavioral state...

10.48550/arxiv.2010.08569 preprint EN other-oa arXiv (Cornell University) 2020-01-01

Abstract Many complex systems are modeled as graphs. Depending on the setting, graphs can be either directed or undirected. While many computational tools have been developed for both types of graphs, some only exist undirected Thus, creating a ’bridge’ that connects to would unlock potential using graph techniques in appropriate contexts. We used Category Theory novel way map simple bipartite we call prime graph. Formally, show there exists an isomorphism between category and whose objects...

10.21203/rs.3.rs-1995489/v1 preprint EN cc-by Research Square (Research Square) 2022-08-29

Spike-timing dependent plasticity (STDP) is widely accepted as a mechanism through which the brain can learn information from different stimuli(1, 2). Basing synaptic changes on timing between presynaptic and postsynaptic spikes enhances contributing edges within network(3, 4). While STDP rules control evolution of networks, most research focuses spiking rates or specific activation paths when evaluating learned information(5–7). However, since augments structural weights, synapses may also...

10.1101/2022.10.21.513291 preprint EN cc-by bioRxiv (Cold Spring Harbor Laboratory) 2022-10-22

Analysis of the dynamics complex networks can provide valuable information. For example, be used to characterize and differentiate between different network inputs configurations. However, without quantitatively delineating network’s dynamic regimes, analysis is based on heuristics qualitative signatures transient or steady-state regimes. This not ideal because interesting phenomena occur during regime, at transition two Moreover, for simulated observed systems, precise knowledge dynamical...

10.2139/ssrn.4220673 article EN SSRN Electronic Journal 2022-01-01

Abstract Many complex systems are modeled as graphs. Depending on the setting, graphs can be either directed or undirected.While many computational tools have been developed for both types of graphs, some only exist undirected graphs.Thus, creating a 'bridge' that connects to would unlock potential using graph techniques in appropriate contexts.We used Category Theory novel way map simple bipartite we call prime graph.Formally, show there exists an isomorphism between category and whose...

10.21203/rs.3.rs-1995489/v2 preprint EN cc-by Research Square (Research Square) 2022-12-19
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