Sk. Sarif Hassan

Coexistence, Oscillations, and Chaos in a Discrete Predator-Prey System with Fear-Modulated Prey Growth

Sujay Goldar, Sk. Sarif Hassan, A. Mohsen, Purnendu Sardar et autres

Predator–prey interactions are governed not only by direct consumption but also by behavioral responses of prey to the perceived risk of predation. In this work, we formulate a discrete-time predator–prey model in which predator-induced fear modifies prey reproduction through an exponential suppression …

in, iq, sa (code pays fourni par la source)

Two–Dimensional Discrete Dynamics of Integral Value Transformations

Jayanta Kumar Das, Sudhakar Sahoo, Sk. Sarif Hassan, Pabitra Pal Choudhury

A notion of dimension preservative map, Integral Value Transformations (IVTs) is defined over [Formula: see text] using the set of [Formula: see text]-adic functions. Thereafter, two-dimensional Integral Value Transformations (IVTs) is systematically analyzed over [Formula: see text] using pair of two variable …

in (code pays fourni par la source)

Quantitative deciphering of mammalian histamine receptors through mathematical genomics

Sk. Sarif Hassan, Debaleena Nawn, Pritam Goswami, N. Mukherjee et autres

nl, in, us (code pays fourni par la source)

Chaos and Complexity in a Novel Three‐Dimensional Nonlinear System: Analysis, Bifurcations, and Applications

Faruk Biswas, Santosh Biswas, Raihan Islam Mondal, Sujay Goldar et autres

ABSTRACT This study introduces a novel three‐dimensional nonlinear system featuring quadratic, cubic, quartic, and quintic nonlinearities, with inherent symmetry about the ‐axis. We analyze its fundamental dynamical properties, including equilibrium points and their stability, dissipative behavior, and high‐periodicity limit cycles. The system's …

in (code pays fourni par la source)

Quantitative Deciphering of Mammalian Histamine Receptors through Mathematical Genomics

Sk. Sarif Hassan, Debaleena Nawn, Pritam Goswami, N. Mukherjee et autres

Abstract Histamine receptors (HRH1–HRH4) are G-protein coupled receptors (GPCRs) that mediate essential physiological functions, including neurotransmission, gastric acid secretion, immune regulation, and presynaptic autoregulation. Despite their importance, systematic comparative analyses across mammalian histamine receptor sequences remain scarce. In this study, we performed …

in, us (code pays fourni par la source)

Dynamics and Bifurcations in a Two‐Species Ricker Competition Model With Nonmonotonic Growth

Sujay Goldar, Sk. Sarif Hassan, Rasmikanta Pati, A. Mohsen et autres

This study investigates the dynamics of a discrete‐time competition model involving two species with nonmonotonic growth rates. The system is formulated through coupled Ricker‐type equations that incorporate both intraspecific and interspecific interactions. This part of the work deals with two fundamental properties: …

in, iq, ir (code pays fourni par la source)

CpG-induced regions associated compositional stratification of human essential proteins through mathematical genomics

Shipra Singh, Kharerin Hungyo, Sk. Sarif Hassan, Vladimir N. Uversky

Abstract CpG islands are genomic regions enriched in cytosine–phosphate–guanine dinucleotides, typically associated with gene promoters and regulatory elements. While their role in transcriptional regulation is well established, their influence on protein sequence composition remains underexplored. In this study, 3,222 essential proteins from …

in, us (code pays fourni par la source)

A mathematical genomics perspective on the moonlighting role of glyceraldehyde-3-phosphate dehydrogenase (GAPDH)

Sk. Sarif Hassan, Debaleena Nawn, N. Mukherjee, Arunava Goswami et autres

in, us (code pays fourni par la source)

The XEC Variant: Genomic Evolution, Immune Evasion, and Public Health Implications

Alaa A. A. Aljabali, Kenneth Lundström, Altijana Hromić-Jahjefendić, Nawal Abd El‐Baky et autres

Narrative review synthesizes the most current literature on the SARS-CoV-2 XEC variant, focusing on its genomic evolution, immune evasion characteristics, epidemiological dynamics, and public health implications. To achieve this, we conducted a structured search of the literature of peer-reviewed articles, preprints, and …

jo, us, ba, Égypte, in, mx, sa (code pays fourni par la source)

A Mathematical Genomics Perspective on the Moonlighting Role of Glyceraldehyde-3-Phosphate Dehydrogenase (GAPDH)

Sk. Sarif Hassan, Debaleena Nawn, N. Mukherjee, Arunava Goswami et autres

Abstract Glyceraldehyde-3-phosphate dehydrogenase (GAPDH) is a well-conserved enzyme across Archaea, Bacteria, and Eukarya, known not only for its canonical role in glycolysis, but also for diverse moonlighting functions including transcription regulation, host-pathogen interactions, and immune modulation. Studying GAPDH quantitatively is crucial for …

in, us (code pays fourni par la source)

Methuselah proteins in Drosophila: Structural and evolutionary insights from mathematical genomics

Sk. Sarif Hassan, Debaleena Nawn, Ankita Ghosh, Moumita Sil et autres

in, Afrique du Sud, us (code pays fourni par la source)

The XEC Variant: Genomic Evolution, Immune Evasion, and Public Health Implications

Alaa A. A. Aljabali, Kenneth Lundström, Altijana Hromić-Jahjefendić, Nawal Abd El‐Baky et autres

The XEC strain of SARS-CoV-2 has drawn particular attention because of its ability to outcompete existing Omicron strains. Defined by distinctive spike protein mutations, T22N and Q493E, XEC exhibits increased ACE2 binding affinity and partial immune evasion, which may compromise vaccine-induced neutralizing …

jo, us, ba, sa, Égypte, in, mx (code pays fourni par la source)