Universidad Autónoma de Nuevo León

Catalytic valorization of wastewater sludge into aviation fuel-range hydrocarbons over Ni, Cu, Co and ZrO2/SAPO-11 catalysts

This work presents an innovative valorization strategy for wastewater sludge to produce aviation fuel range hydrocarbons via the catalytic processing of esters, using Ni, Cu, Co, and ZrO 2 -based catalysts supported on SAPO-11 zeolite. Biofuel was produced under two reaction atmo...

Optimized packing soft 3D polyhedra

Abstract A novel problem of packing soft convex three‐dimensional polyhedral objects in an optimized convex container is introduced. Soft objects can change their shapes within certain limits to better fit into the container, while preserving their volumes. Adjusted non‐overlappi...

Pulse-Generation Maps in External-Cavity Semiconductor Lasers with Short-Delay Optical Feedback

We investigate pulse generation in external-cavity semiconductor lasers subject to short-delay optical self-feedback using a deterministic quadrature-based delay-differential model. High-resolution pulse-generation maps are constructed in the (lg(C),ϕf) parameter space, where lg(...

Fractional rheology of methylcellulose thermogelation

Methylcellulose is well known for its thermoreversible gelation. Here, we utilize a fractional viscoelastic constitutive framework to analyze the time-, temperature-, and concentration-dependent behavior of the thermorheologically complex system formed by methylcellulose in water...

When the fat is missing: a fat-free spindle cell lipoma in a young woman

Dear Editor, Spindle cell lipoma (SCL) is a benign adipocytic neoplasm first characterized by Enzinger and Harvey, classically arising in the posterior neck, shoulder, and upper back of middle-aged to older men. Histologically, it is defined by a variable admixture of mature adip...

Structural health vulnerability and functional limitation among Mexican adults: a nationally representative cross-sectional analysis of ENSANUT 2024

Abstract Background Structural deprivations, including educational lag, lack of access to health services, and material poverty, are widespread in Mexico and frequently co-occur, yet health research has examined these conditions almost exclusively in isolation, missing the compou...

Standards for practical management of drug hypersensitivity reactions to intravenous drugs and proactive early allergy involvement before referral: A WAO Statement

Hypersensitivity reactions to intravenous therapies—including antibiotics, chemotherapeutics, biologics, anesthesia agents, and contrast media—pose significant challenges in acute care settings. These reactions often occur outside the purview of allergy specialists, leading to de...

Phase Change Material (PCM) Supported on Basaltic Aggregate for Cementitious Mortars as a Thermal Coating

Population growth, high ambient temperatures, and longer warm periods have led to increased energy consumption related to heating and cooling systems. The building envelope plays a fundamental role in the performance of such systems to reduce heat transfer into buildings. This st...

Blockade of the PD-1 / PD-L1 Axis Exacerbates Chronic Nocardia Brasiliensis Infection by Disrupting Bacterial Immune Containment in BALB/c Mice

BACKGROUND: Therapeutic blockade of the PD-1/PD-L1 axis is a key strategy in cancer immunotherapy to reverse T cell exhaustion. However, this approach carries the risk of reactivating latent pathogens in individuals with chronic infections. The role of this immune checkpoint in g...

High Prevalence of Fatigue is Linked to Depression in Inflammatory Bowel Disease

Fatigue is a common symptom in patients with inflammatory bowel disease (IBD). However, the prevalence is underestimated because it is not intentionally assessed during routine medical evaluation. Our study aimed to evaluate the prevalence and factors associated with fatigue in p...

A layered framework for pathogen-oriented prioritization in actinomycetes antifungal biodiscovery

Abstract A major bottleneck in microbial biodiscovery is not only detecting bioactivity, but deciding which candidates should advance to resource-intensive downstream characterization. This challenge becomes particularly relevant when antimicrobial phenotypes vary across culture...

A comparative meta-analysis of amniotic membrane preservation methods: Balancing biological potency and clinical feasibility in ophthalmology

Objectives: The objective of the study is to systematically compare biological and structural properties of fresh, cryopreserved, lyophilized, and dehydrated human amniotic membrane (AM) and to quantify sufficiently comparable outcomes across preservation methods. Material and Me...

Core Offset Optical Fiber Sensor Coated with Aluminum-Doped Zinc Oxide for Temperature Measurement

The design of a temperature sensor employing the Mach–Zehnder configuration with an offset in the fiber core represents a novel methodology that leverages the distinctive attributes of optical fibers to attain enhanced sensitivity and precision in temperature measurement. Ambient...

Chloroquine and hydroxychloroquine retinopathy in a cohort with rheumatic diseases in Mexico: prevalence, risk factors, and retinopathy patterns

INTRODUCTION/OBJECTIVES: To compare chloroquine (CQ) and hydroxychloroquine (HCQ) retinopathy prevalence, risk factors, severity, and patterns in a cohort of Hispanic patients with rheumatic diseases in Mexico. METHODS: Retrospective, cross-sectional study of patients with rheuma...

Validation of the MODEL UR and socio-motivated resilience for disaster risk governance in the Monterrey metropolitan area

To investigate the relationship between urban resilience and disaster risk governance in the Monterrey Metropolitan Area (MMA), Mexico, a theoretical model was developed and validated. The study examined how governance processes, social cohesion, and institutional capabilities su...

Continuous Monitoring of the Photocatalytic Degradation of Levofloxacin Using an Impedimetric Sensor-Based System

Developing portable and reliable systems for online monitoring of antibiotic degradation in water is essential for studying, optimizing, and improving their efficiency. In this work, we introduce an impedimetric sensor-based system for online monitoring of the photocatalytic degr...

Agricultural Factor Misallocation and Land Rentals in Vietnam

ABSTRACT This paper investigates factor misallocation in Vietnam's cropping sector and its connection to land rental markets. It differentiates between market‐based transactions (i.e., those involving compensation) and nonmarket transfers (i.e., those conducted without payment, o...

Trichotillomania

th history of progressive hair loss involving the frontal scalp and vertex.She had r loss without clinical improvement.Physical examination revealed irregular ble lengths.No erythema, scaling, follicular hyperkeratosis, pustules, or atrophy ular openings, numerous broken hair sha...

Tourist Environmental Awareness and Conservation Engagement in a Caribbean Marine Protected Island System: Evidence from Cozumel, Mexico

Tourism is a major driver of economic growth in tropical island destinations but also places increasing pressure on fragile marine ecosystems. This study examined tourists’ environmental awareness, perceptions, and conservation-related behaviors on Cozumel Island, part of the Mes...

The hematology workforce in the United States: past, present, and strategies for the future

From 2017-2021, the American Society of Hematology (ASH) completed the largest study ever conducted of the hematology workforce in the United States (US). The study highlighted a deficit in the classical hematology (CH) workforce: despite very high CH clinical volumes encountered...