Instituto Politécnico Nacional

Associations of Physical Activity, Sedentary Behavior, and Handgrip Strength with Clinical Characteristics in Women with Rheumatoid Arthritis from Western Mexico

Background: Rheumatoid arthritis (RA) is a chronic autoimmune disease that affects synovial joints and leads to functional impairment. Modifiable factors such as physical activity (PA), sedentary behavior (SB), and handgrip strength (HGS) may influence clinical and functional out...

Newly Isolated Kluyveromyces marxianus Strain Capable of Producing Oleic Acid-Rich Oil for Human Consumption from Whey

Cheese whey is a widely available agri-food byproduct whose high organic load presents significant challenges for the dairy industry and environmental management. Its biovalorization into high-value, sustainable functional lipids is increasingly important given the environmental...

A Proposed Convergent Genetic and Molecular Framework for Legg–Calvé–Perthes Disease: A Scoping Review

Legg–Calvé–Perthes disease (LCPD) is a rare pediatric disorder characterized by avascular osteonecrosis of the femoral head. Its pathogenesis is multifactorial, and genetic, epigenetic, vascular, and inflammatory mechanisms may contribute to disease susceptibility and progression...

Click Bioconjugation of Aza‐BODIPY Fluorophores to LfcinB Peptides for Improved Biocompatibility

Near‐infrared (NIR) organic fluorophores have emerged as promising for biomedical imaging and theragnostics, offering deep‐tissue penetration and reduced background interference. However, poor aqueous solubility and limitations in photostability, biocompatibility, and targeting h...

First report of Lasiodiplodia theobromae causing dieback of Common Fig ( Ficus carica ) in Morelos, Mexico

The common fig (Ficus carica L.) is widely cultivated in semi-arid and subtropical regions. In June 2025, five-year-old fig trees cv. Black Mission exhibiting dieback symptoms were observed in Morelos, Mexico (18°52'29.59"N, 98°47'01.65" W). Among 650 trees assessed, disease inci...

Immune-Related Transcript Abundance and Survival of Penaeus vannamei Treated with an Acid Hydrolysate from WSSV-Infected Shrimp

This study characterized acid hydrolysates prepared from WSSV-infected (HS-WSSV) and non-infected (HS-noWSSV) Penaeus (Litopenaeus) vannamei Boone, 1931 muscle and evaluated immune-related transcript abundance and survival following WSSV challenge. Hydrolysates were maintained at...

Development and Characterization of Bioactive Sodium Alginate Dressings Incorporating Melipona beecheii Honey for Wound Healing Applications

Healing wounds and skin lesions has been practiced since ancient times, and various mechanisms have been used to treat them, ranging from bandages and herbs to ointments and modern alternatives such as dressings. This work aimed to develop bioactive dressings for wound healing. D...

Reproductive traits, sex‐specific reproductive investment and gonadal dynamics in a spawning surgeonfish

Abstract The razor surgeonfish Prionurus laticlavius is a key herbivore in Eastern Pacific reef communities. This study provides a sex‐specific assessment of its reproductive traits, size at maturity and energetic dynamics in the Gulf of California by integrating biometric indica...

Stack-level engineering and predictive diagnostics of a modular plant–microbial fuel cell system using artificial neural networks

Plant-microbial fuel cells (PMFCs) are an emerging bioelectrochemical technology for sustainable energy generation that harnesses root exudates and soil microbial metabolism. Their operation shares electrochemical characteristics with hydrogen fuel cell stacks, particularly in te...

Block method: Reference-anchored peak fitting for tracking subtle chemical evolution in sequential XPS spectra

The Block Method is a refinement of spectral subtraction developed for the analysis of complex x-ray photoelectron spectroscopy data. In this method, the fitted spectrum of a reference sample is converted into a structured spectral block and used as an additional component during...

Present and Future Climatic Suitability of Castilleja tenuiflora in Mexico

Climate change can reshape the climatic conditions available to mountain plants. Using MaxEnt, we modelled the current and future climatic suitability of Castilleja tenuiflora Benth., a medicinal hemiparasitic plant, across Mexico and quantified its spatial overlap with Mexican P...

Determination of the metric of a Schwarzschild black hole surrounded by a halo of dark matter

Abstract Following the landmark acquisition of the first image of a black hole, systems comprising a black hole enveloped by a dark matter halo have attracted considerable attention. This work implements a novel method to analyze the structure of a system composed of a Schwarzsch...

Biological Evaluation, Molecular Docking, MD Simulation Study and Synthesis of (Z)‐N’‐(3‐phenoxybenzylidene)‐2‐(substituted‐amino aryl) Acetohydrazid

ABSTRACT In order to investigate their possible biological activity, a number of new Schiff base compounds based on diaryl ether, specifically 2‐(substituted‐arylamino)‐N′‐(3‐phenoxybenzylidene) acetohydrazides, were created. IR, 1 H NMR, and 13 C NMR spectrum studies were used t...

Lightweight Sensor Data Encryption on ESP32 Using the Pi Number for Dynamic Operations

Since intercepted sensor data can reveal user activities, lightweight cryptography is essential for protecting information in resource-constrained devices. Although ARX-based lightweight schemes offer high computational efficiency, their lack of inherent non-linear substitution a...

A q-deformed deterministic gradient framework generalizing affine projection adaptive filters

Purpose This work proposes a q-deformed deterministic gradient framework that generalizes affine projection adaptive filters by embedding a deformation of the classical gradient operator into a fully deterministic formulation. Design/methodology/approach By embedding the q-gradie...

Multi-criteria kinetic modeling of kerogen hydrothermal conversion: assessing network complexity and model selection

The kerogen-rich oil shale deposits constitute a strategically vital unconventional resource base. However, suitable kinetic studies that represent the reactions for developing appropriate technologies are scarce. This study systematically evaluates the predictive accuracy of kin...

Size Classification for Software Maintenance Projects Through a Simplified Minimalist Machine Learning Algorithm

In the software engineering field, the size of projects is used as explanatory variable for predicting the effort, duration, defects, costs, or risks of a project. Thus, the software project size has been considered the most influential factor. A systematic mapping study on the u...

Experimental biofilm vaccines for fish aquaculture: an overview

Biofilm vaccines in fish are a trending approach to fighting bacterial diseases. Pathogens, including Aeromonas spp., Vibrio spp., Photobacterium spp., and Streptococcus spp., have been studied for planktonic- and biofilm-derived vaccines. These vaccines have demonstrated safe im...

Online algebraic identification–based trial-weight-free modal balancing of asymmetric rotor–bearing systems

Asymmetric rotor–bearing systems exhibit parametric excitation and complex vibration behavior due to unequal stiffness along their principal axes, which significantly complicates conventional balancing procedures. Most existing methodologies require trial weights and multiple rot...

Aloe-Emodin Modifies Adipogenic Genes and the Expression of miR-143 and miR-155 in 3T3-L1 Cells

Adipogenesis is crucial for maintaining energy homeostasis, as it facilitates the differentiation of mesenchymal stem cells into adipocytes. This process is transcriptionally regulated by key factors including PPARγ and C/EBPβ, alongside FABP4 during lipogenesis. However, it is n...