Publications by authors named "Santiago Perez"

Social status and dominance are critical factors influencing well-being and survival across multiple species. However, dominance behaviors vary widely across species, from elaborate feather displays in birds to aggression in chimps. To effectively study dominance, it is essential to clearly define and reliably measure dominance behaviors.

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Introduction And Objectives: Timely regional-specific estimates of smoking-attributable mortality (SAM) are crucial for healthcare planning and tobacco control advocacy. Currently, this information is lacking in Portugal. The aim of this study was to estimate SAM by region in 2019 among the Portuguese population aged ≥35 years.

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Multi-taxa approaches are increasingly used because they describe complementary aspects of ecosystem dynamics from a community ecology perspective. In west-central Mexico, the complex biogeography and topography have created an environment where temperate and tropical forests converge, resulting in great biological diversity. Within this region, the Sierra de Quila Natural Protected Area (SQPA) offers an important example for understanding ecological community dynamics.

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In Mexico, land use changes have significantly impacted the diversity of amphibians and reptiles in a negative way. In light of this, we evaluate the alpha and beta components of the taxonomic diversity of amphibians and reptiles in a heterogeneous landscape in west-central Mexico. Additionally, we provide a checklist of amphibian and reptile species recorded over nine years of observations within the studied landscape and surrounding areas.

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One of the world's crucial areas for crude oil exploration and extraction is the southern Gulf of Mexico, where Terminos Lagoon (TL) is located. Sediments from the TL region were used to assess the spatial patterns, origins, and ecotoxicological risks associated with 16 priority polycyclic aromatic hydrocarbons (PAHs; 3.1-248.

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Millicharged particles appear in several extensions of the standard model, but have not yet been detected. These hypothetical particles could be produced by an intense proton beam striking a fixed target. We use data collected in 2020 by the SENSEI experiment in the MINOS cavern at the Fermi National Accelerator Laboratory to search for ultrarelativistic millicharged particles produced in collisions of protons in the NuMI beam with a fixed graphite target.

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Dengue fever (DF) is a mosquito-borne illness with substantial economic and societal impact. Understanding laboratory trends of hospitalized Dominican Republic (DR) pediatric patients could help develop screening procedures in low-resourced settings. We sought to describe laboratory findings over time in DR children with DF and DF severity from 2018 to 2020.

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Article Synopsis
  • The study aimed to evaluate lifestyle changes related to diet and substance use during pregnancy and after childbirth among Galician women, focusing on how these changes relate to the mother's educational level.
  • Data was collected from 6,436 women who gave birth between September 2015 and August 2016, showing that women generally adopted healthier lifestyles during pregnancy, which deteriorated in the months after childbirth.
  • The findings indicated that lower education levels were associated with a higher prevalence of risk behaviors before, during, and after pregnancy, highlighting a significant connection between education and lifestyle choices related to maternal health.
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The objective of this study is to assess the impact of applying prevalences derived from a small-area model at a regional level on smoking-attributable mortality (SAM). A prevalence-dependent method was used to estimate SAM. Prevalences of tobacco use were derived from a small-area model.

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Article Synopsis
  • - The study investigates the link between smoking prevalence and lung cancer mortality in Spain, focusing on the time relationship between the two factors from 1991 to 2020.
  • - A distributed lag non-linear model was used to analyze the data, revealing that the strongest impact of smoking on lung cancer deaths occurs with a 15-year lag, showing a relative risk of 2.9 at 71% prevalence.
  • - The findings highlight that understanding smoking trends and their time effects is crucial for predicting lung cancer mortality rates in the future.
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Magneto-optical measurements are fundamental research tools that allow for studying the hitherto unexplored optical transitions and the related applications of topological two-dimensional (2D) transition metal dichalcogenides (TMDs). A theoretical model is developed for the first-order magneto-resonant Raman scattering in a monolayer of TMD. A significant number of avoided crossing points involving optical phonons in the magneto-polaron (MP) spectrum, a superposition of the electron and hole states in the excitation branches, and their manifestations in optical transitions at various light scattering configurations are unique features for these 2D structures.

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  • Nirsevimab has been approved for universal RSV prevention in infants, with a study (NIRSE-GAL) launched in Galicia in September 2023 to assess its effectiveness against various RSV-related health issues.
  • The study will monitor infants during the RSV season, focusing on different groups including newborns and those at high risk, and will track outcomes until significant events occur or the study concludes.
  • Data analysis will utilize sophisticated models and will include safety monitoring of nirsevimab, with results communicated through scientific publications and conferences.
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Article Synopsis
  • Galicia, Spain, launched a program in September 2023 to give nirsevimab for RSV prevention in infants, focusing on newborns, those under 6 months, and high-risk children aged 6-24 months.
  • The interim analysis of the study, using data from Sept 25 to Dec 31, 2023, assesses nirsevimab's effectiveness in preventing different levels of RSV-related hospitalizations and complications.
  • The study compares the results with data from previous RSV seasons to calculate how many cases of hospitalization were potentially avoided due to the immunization campaign.
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  • The study investigates the impact of respiratory syncytial virus (RSV) on infants, highlighting that the effects go beyond just hospitalization and require better understanding for future healthcare planning.
  • Researchers analyzed data from 6626 children, comparing those hospitalized with severe RSV to those who weren't, focusing on healthcare visits and prescriptions related to respiratory issues.
  • Results showed that severe RSV significantly increased visits to primary healthcare for conditions like wheezing and lower respiratory infections, indicating a substantial burden even after initial hospitalization.
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  • This study analyzes the trend of obesity prevalence in Spain from 1987 to 2020, focusing on individuals aged 15 and older across the country's 17 autonomous communities.
  • It found that obesity prevalence rose from 7.3% in 1987 to 15.7% in 2020, with distinct trends observed across gender and regions, including periods of stabilization for both men and women.
  • Despite a general stabilization in overall obesity rates in the last decade, the study noted a continuous increase in obesity prevalence among younger individuals aged 15 to 24.
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Objectives: Previous studies suggest that there is discordance between actual weight status and body-weight perception. This fact has implications when it comes to designing public health interventions. The aim of this study was to estimate the prevalence of the different categories of weight status and body-weight perception and to analyse their concordance in a representative Spanish population sample.

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Introduction: The factors and patterns associated with antibiotic consumption in infants are unclear. Our aim was to assess the cumulative incidence of antibiotic consumption from birth to 16 months and identify factors associated with antibiotic consumption among infants aged 4-16 months.

Material And Methods: We conducted a cross-sectional study in 2016 in a sample of 18 882 women from Galicia, Spain, who had given birth to a live child between September 1, 2015 and August 31, 2016.

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Social recognition is crucial for survival in social species, and necessary for group living, selective reproduction, pair bonding, and dominance hierarchies. Mice and rats are the most commonly used animal models in social memory research, however current paradigms do not account for the complex social dynamics they exhibit in the wild. To assess the range of social memories being studied, we conducted a systematic analysis of neuroscience articles testing the social memory of mice and rats published within the past two decades and analyzed their methods.

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Background And Objectives: Continuous monitoring of smoking prevalence is essential to understand the evolution of the tobacco epidemic in a population. The objective of this study was to analyze the evolution of smoking prevalence in Spain and its 17 Autonomous Regions (ARs) in population ≥15 years during the period 1987-2020.

Methods: Tobacco consumption data were derived from the National Health Survey of Spain and the European Health Survey in Spain.

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Purpose: This study aimed to: (1) test and explain the type of experience scuba diving is among people with physical impairments based on the experience-type framework; (2) assess and describe their personality based on the Big Five domains; and (3) identify if personality, years diving, and diving level predict experience-type.

Methods: An explanatory sequential mixed methods design was employed. The quantitative phase used a cross-sectional survey ( = 103).

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Introduction: Available evidence to identify factors independently associated with failed thromboprophylaxis (FT) in medical patients is insufficient. The present study seeks to evaluate in hospitalized patients, which clinical factors are associated with the development of FT.

Materials And Methods: A case-control study nested to a historical cohort, comparing patients who developed failed thromboprophylaxis (cases) with those who did not (controls).

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Objective: To characterize the prevalence of physical activity in the population aged ≥16 years integrating sedentarism and physical inactivity.

Method: A cross-sectional study using data from the Galician Risk Behavior Data System (n=12,928) was conducted. The population was classified into four categories: physically active (active and non-sedentary), active but sedentary (active and sedentary), lightly active (inactive and non-sedentary), and extremely sedentary (inactive and sedentary).

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Background And Objective: Sedentary behavior is a predictive factor for numerous diseases. The objective of this study was to assess the evolution of the prevalence of sedentary behavior in the Spanish adult population between 1987 and 2020.

Methods: The data sources were the National and European Health Surveys.

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Purpose: To assess the possible influence of the presence of varicocele on the quantification of testicular stiffness.

Methods: Ultrasound with shear wave elastography (SWE) was performed on 48 consecutive patients (96 testicles) referred following urology consultation for different reasons. A total of 94 testes were studied and distributed in three groups: testes with varicocele (group A, n = 19), contralateral normal testes (group B; n = 13) and control group (group C, n = 62).

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