13,591 results match your criteria: "University of Puerto Rico; antonio.martins@upr.edu.[Affiliation]"

Threat perception and behavioral reactivity in response to an acute stressor in infant rhesus macaques.

Acta Psychol (Amst)

December 2024

Department of Comparative Human Development, The University of Chicago, Chicago, IL, USA; Department of Psychology, Washington & Jefferson College, Washington, PA, USA. Electronic address:

Attentional bias to threat is an adaptive response to the presence of threat and danger in the environment (Haselton et al., 2009; Pollak, 2008). Attentional bias to threat is present in both human and nonhuman primates (e.

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Article Synopsis
  • Machine learning, particularly deep learning with convolutional neural networks (CNNs), is being used to detect prostate cancer in tissue slides, but sample type differences affect model accuracy.
  • Research tested whether CNNs trained on one type of sample (biopsy or radical prostatectomy) could effectively analyze the other type, revealing a significant drop in performance across sample types.
  • Results indicated that models performed well on their own sample but poorly on the alternative type, highlighting the need to consider morphological differences in training to improve cancer detection accuracy in clinical settings.*
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Characterization of the microbial communities in paddy soils in Lajas, Puerto Rico using 16S rRNA gene.

Microbiol Resour Announc

December 2024

Microbial Biotechnology and Bioprospecting Laboratory, Biology Department, University of Puerto Rico at Mayagüez, Mayagüez, Puerto Rico, USA.

The microbiota in the paddy soils of the Lajas Agricultural Experimental Station at the University of Puerto Rico (LAES-UPR) plays a crucial role in agricultural ecosystems. Despite being at an experimental station, these soils represent natural environments supporting rice cultivation. Microbial diversity was evaluated during pre-harvest and post-harvest periods.

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Introduction: Most US quitlines have quitsites and websites designated to promote their services. Quitsites have the potential to encourage LGBTQ individuals to utilize quitline services by explicitly mentioning the provision of LGBTQ-competent services. The present study audited quitsites to determine the presence of information regarding services for LGBTQ individuals.

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Quality of life (QOL) for older adults in Puerto Rico was significantly impacted during the COVID-19 pandemic, yet there has been little attention to this topic. This study examines the association between COVID-19-related attitudes and QOL and the mediating role of the psychological sense of community (PSOC) in this context. Data are from a COVID-19 knowledge, attitudes, and practices survey with a nonprobability sample of 213 Puerto Rican adults aged 60+ in 2021.

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Mapping resistance to Sclerotinia white mold in two pinto bean recombinant inbred line populations.

Plant Genome

December 2024

USDA-ARS, Grain Legume Genetics and Physiology Research Unit, Prosser, Washington, USA.

White mold, caused by the fungus Sclerotinia sclerotiorum (Lib.) de Bary, is a devastating disease affecting common bean (Phaseolus vulgaris L.) production worldwide.

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Enhancing reproducibility in single cell research with biocytometry: An inter-laboratory study.

PLoS One

December 2024

Department of Research & Development, Sampling Human Inc., Berkeley, California, United States of America.

Article Synopsis
  • Biomedicine is moving towards decentralized data collection, which improves reproducibility and collaboration across labs.
  • A study evaluated biocytometry, a method using engineered bioparticles, and found it effective for counting target cells at low concentrations, even with varying user expertise.
  • The findings suggest that biocytometry is a practical option for immunophenotyping, allowing for sensitive and scalable analysis of rare cells in diverse samples without needing advanced training.
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  • The CMS experiment conducted a search for charge-parity violation in decays using proton-proton collision data from 2018, analyzing around 10 billion events with b hadrons decaying into charm hadrons.
  • The flavor of the neutral D meson was determined through the charge of pions in the reconstructed decays, and an asymmetry measurement in the decays was reported, taking into account various uncertainties.
  • This research marks the first asymmetry measurement by the CMS in the charm sector and the first to use a fully hadronic final state in such analyses.
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Atypical fractures are diagnosed when an otherwise normal force causes a fracture in a patient using bisphosphonates chronically. These occur most commonly in the subtrochanteric region of the femur. Yet, the literature on atypical tibial shaft fractures is scarce.

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  • Demographic rescue involves adding individuals to endangered populations to boost their numbers and prevent extinction, but its effectiveness is uncertain in the presence of diseases.
  • A study was conducted using an aquatic crustacean, Daphnia dentifera, and a fungus pathogen, Metschnikowia bicuspidata, to investigate how pathogens affect demographic rescue outcomes.
  • Results showed that while adding healthy individuals temporarily increased population size, populations with infected individuals ultimately had significantly lower abundance compared to those with no intervention, highlighting the risks of introducing diseased organisms during rescue efforts.*
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  • A new species of beetle, named C. stonei sp. nov., has been discovered in Costa Rica while researching planthoppers linked to palm trees.
  • The study includes molecular data from specific genes (COI, 18S rRNA, and 28S rRNA) to confirm the classification of this beetle within the Colpoptera genus.
  • This research enhances the understanding of biodiversity in the Colpopterini tribe and the ecological relationships in palm ecosystems.
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Distribution of microplastics in the tidal flats of La Parguera, Puerto Rico.

Mar Pollut Bull

December 2024

Department of Geography and the Environment, Villanova University, 800 Lancaster Avenue, Villanova, PA 19085, USA. Electronic address:

Article Synopsis
  • Tidal flats, located behind mangrove forests, are important coastal ecosystems impacted by both ocean and land activities, and this study examined microplastics (MPs) in these areas in southwest Puerto Rico.
  • Researchers found an average of 148.64 MPs per kg in sediment samples, with most MPs being small (0.3-1 mm) and increased concentrations found farther from mangroves at three sites.
  • Notably, polyethylene was the most common type of plastic identified, and while mangrove cover helped reduce MP accumulation, better waste management is also essential to protect these ecosystems from plastic pollution.
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Background: This study aimed to evaluate parents' main reasons for lack of intent to vaccinate their adolescent against human papillomavirus (HPV) from 2019 to 2021 and to examine changes in these main reasons stratified by sex of the adolescent.

Methods: NIS-Teen data from 2019 to 2021 were used. Parents who had not vaccinated their adolescent aged 13-17 against HPV and had no intent to do so in the next 12 months were asked the main reason behind this decision.

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Purpose Of Review: This paper evaluates the benefits and limitations of detecting measurable residual disease (MRD) in mantle cell lymphoma (MCL) and assesses its prognostic value. It also aims to highlight the importance of detecting low MRD levels post-treatment and their application in clinical practice.

Recent Findings: Recent studies show that MRD levels predict relapse and survival outcomes in hematologic neoplasms, including MCL.

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With energy shortages and excessive CO emissions driving climate change, converting CO into high-value-added products offers a promising solution for carbon recycling. We investigate CO reduction reactions (CORR) catalyzed by 10 single-atom catalysts (SACs), incorporating weak non-covalent interactions, specifically lone pair-Ï€ and H-Ï€ interactions. The SACs, consisting of transition metals coordinated by three carbon atoms in a defective graphene substrate (3C-TM, TM=Sc-Zn), leverage these interactions to influence the energy fluctuations of intermediates and the limiting potentials of CORR, without altering the overall reaction pathway.

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Objective: To report the first systematic review and meta-analysis of Burkholderia species infections of the head and neck to facilitate understanding of the disease's demographics, mortality rate, comorbidities associated, symptoms, and antibiotic treatments utilized.

Data Sources: COCHRANE Library, CINAHL, PubMed, and Scopus.

Review Methods: A systematic review and meta-analysis were performed using PRISMA reporting guidelines.

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Plant stress reduction research has advanced significantly with the use of Artificial Intelligence (AI) techniques, such as machine learning and deep learning. This is a significant step toward sustainable agriculture. Innovative insights into the physiological responses of plants mostly crops to drought stress have been revealed through the use of complex algorithms like gradient boosting, support vector machines (SVM), recurrent neural network (RNN), and long short-term memory (LSTM), combined with a thorough examination of the TYRKC and RBR-E3 domains in stress-associated signaling proteins across a range of crop species.

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Survival Outcomes and Disparities in Surgery Refusal for Papillary Thyroid Cancer.

Anticancer Res

December 2024

Division of Surgical Oncology, Department of General Surgery, Mayo Clinic, Jacksonville, FL, U.S.A.

Background/aim: Surgery is the cornerstone of treatment for papillary thyroid cancer (PTC), yet some patients refuse surgery, which may impact their survival outcomes. Understanding factors associated with surgery refusal could inform interventions to improve acceptance of recommended care.

Patients And Methods: This retrospective cohort study evaluated the impact of surgery refusal on overall survival (OS) and identified associated demographic and clinical factors using data on patients with PTC from the National Cancer Database from 2004 to 2019.

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Article Synopsis
  • The study focuses on detecting multijet signatures from proton-proton collisions at a high energy of 13 TeV, analyzing a dataset totaling 128 fb^{-1}.
  • A special data scouting method is utilized to pick out events with low combined momentum in jets.
  • This research is pioneering in its investigation of electroweak particle production in R-parity violating supersymmetric models, particularly examining hadronically decaying mass-degenerate higgsinos, and it broadens the limits on the existence of R-parity violating top squarks and gluinos.
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Collaborating With Jails to Provide Community-Based Medication for Opioid Use Disorder: Qualitative Perspectives from MOUD Treatment Providers.

J Addict Med

December 2024

From the Department of Family Medicine and Community Health, University of Massachusetts Chan Medical School, Worcester, MA (EP); University of Puerto Rico Medical Sciences Campus, San Juan, Puerto Rico (BYPG); Baystate Health and University of Massachusetts Chan Medical School-Baystate, Springfield, MA (PDF), Department of Population and Quantitative Health Sciences, University of Massachusetts Chan Medical School, Worcester, MA (PDF); Department of Public Health and Community Medicine, Tufts University School of Medicine, Boston, MA (TJS); Institute for Health Equity and Social Justice Research, Northeastern University, Boston, MA (CS); and Department of Health Promotion and Policy, School of Public Health and Health Sciences, University of Massachusetts Amherst, Amherst, MA (EAE).

Objectives: As carceral settings increasingly offer medications for opioid use disorders (MOUD), community-based providers will need to navigate relationships with correctional agencies to ensure continuity of MOUD upon release. Although collaboration has been identified as critical between agencies, limited research is available that details how providers can work with jails. We describe the perspectives of MOUD providers about their experiences collaborating with jails that had recently begun to offer MOUD.

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To examine the trends and outcomes in the management of Coats disease and evaluate the effects of a staged therapeutic approach using transpupillary laser vascular ablation, intravitreal (IVT) bevacizumab, and adjunct as-needed posterior sub-Tenon triamcinolone acetonide (used only in cases with a persistent active exudation) on globe retention, anatomic status, and visual acuity (VA). An evaluation was performed from 2005 to 2023. Previous case series published in the literature were reviewed.

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Background: Understanding the dynamics of the gut microbiota in sea urchins is crucial for comprehending the ecological balance in marine ecosystems. The gut microbiota plays a vital role in nutrient metabolism, immune system modulation, and pathogen protection. The microbial composition and dynamics of naturally occurring sea urchin have yet to be thoroughly investigated.

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  • The paper discusses the translation and adaptation of the Engage for Equity's Community Engagement Survey (E CES) into Spanish, resulting in a shorter version called FUERTES, both aimed at evaluating Community-Engaged Research (CEnR) partnerships.
  • Community and academic partners from various locations ensured the translated tools maintained content validity and strong psychometric properties, validating the effectiveness of the measures.
  • The study found that the new tools bolster research partnerships in Latino/a/x communities and provide practical metrics for evaluating research practices and outcomes.
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