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1.
BMC Infect Dis ; 24(1): 1061, 2024 Sep 27.
Artigo em Inglês | MEDLINE | ID: mdl-39333902

RESUMO

BACKGROUND: Evidence suggests that semi-facial respirators provide protection against contamination in high-risk environments, although the COVID-19 pandemic called for greater protection and viral inactivation capacity. Thus, the aim of this study was to investigate the efficacy of a novel semi-facial respirator containing chitosan nanoparticles, compared with a conventional N95 respirator on the incidence of laboratory-confirmed SARS-CoV-2 in healthcare professionals. The secondary outcomes were influenza infection, usability and comfort. METHODS: Randomized controlled trial within a large public hospital (reference for COVID-19 patients) carried out between March 2021 and June 2023. We included 230 healthcare professionals exposed to SARS-Cov-2 and influenza, working in emergency departments, hospital wards, and intensive care units. Participants were assessed at baseline, after 10 days, and 21 days of follow-up. Researchers, participants, and outcome assessors were blinded to the allocated groups. Outcomes were analyzed by bivariate and multivariate comparisons using logistic regression. Crude (cOR) and adjusted odds ratios (aOR) were estimated, followed by 95% confidence intervals (CIs 95%). We adopted intention-to-treat (ITT) and complete-case (CC) analyses. RESULTS: Baseline characteristics were considered homogeneous between groups, and usability and comfort were reported as excellent in both groups. Non-significant differences were found for all outcomes, both in the ITT and CC analyses. The incidence of COVID-19 and influenza were, respectively, cOR: 0.96 [CI95%: 0.21-4.42] and cOR: 1.25 [CI95%: 0.34-4.62]; and aOR: 1.08 [CI95%: 0.21-5.47] and aOR: 1.11 [CI95%: 0.17-7.01]. CONCLUSIONS: We found that the incidence of SARS-Cov-2 and influenza infections were similar between the new respirator compared to the conventional respirator. Furthermore, we observed that usability and comfort were similar and considered excellent for both respirators. TRIAL REGISTRATION: Clinicaltrials.gov (NCT04490200, 29/07/2020).


Assuntos
COVID-19 , Quitosana , Pessoal de Saúde , Nanopartículas , SARS-CoV-2 , Humanos , COVID-19/prevenção & controle , COVID-19/epidemiologia , Feminino , Masculino , Adulto , Incidência , Pessoa de Meia-Idade , Dispositivos de Proteção Respiratória , Influenza Humana/prevenção & controle , Influenza Humana/epidemiologia , Respiradores N95 , Estudos de Viabilidade
2.
Res Sq ; 2024 Jun 18.
Artigo em Inglês | MEDLINE | ID: mdl-38946989

RESUMO

Background: The assessment of heavy metals' effects on human health is frequently limited to investigating one metal or a group of related metals. The effect of heavy metals mixture on heart attack is unknown. Methods: This study applied the Bayesian kernel machine regression model (BKMR) to the 2011-2016 National Health and Nutrition Examination Survey (NHANES) data to investigate the association between heavy metal mixture exposure with heart attack. 2972 participants over the age of 20 were included in the study. Results: Results indicate that heart attack patients have higher levels of cadmium and lead in the blood and cadmium, cobalt, and tin in the urine, while having lower levels of mercury, manganese, and selenium in the blood and manganese, barium, tungsten, and strontium in the urine. The estimated risk of heart attack showed a negative association of 0.0030 units when all the metals were at their 25th percentile compared to their 50th percentile and a positive association of 0.0285 units when all the metals were at their 75th percentile compared to their 50th percentile. The results suggest that heavy metal exposure, especially cadmium and lead, may increase the risk of heart attacks. Conclusions: This study suggests a possible association between heavy metal mixture exposure and heart attack and, additionally, demonstrates how the BKMR model can be used to investigate new combinations of exposures in future studies.

3.
PLoS One ; 19(6): e0300445, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38924000

RESUMO

The study investigates the efficacy of a bioinspired Particle Swarm Optimization (PSO) approach for PID controller tuning in Radiofrequency Ablation (RFA) for liver tumors. Ex-vivo experiments were conducted, yielding a 9th order continuous-time transfer function. PSO was applied to optimize PID parameters, achieving outstanding simulation results: 0.605% overshoot, 0.314 seconds rise time, and 2.87 seconds settling time for a unit step input. Statistical analysis of 19 simulations revealed PID gains: Kp (mean: 5.86, variance: 4.22, standard deviation: 2.05), Ki (mean: 9.89, variance: 0.048, standard deviation: 0.22), Kd (mean: 0.57, variance: 0.021, standard deviation: 0.14) and ANOVA analysis for the 19 experiments yielded a p-value ≪ 0.05. The bioinspired PSO-based PID controller demonstrated remarkable potential in mitigating roll-off effects during RFA, reducing the risk of incomplete tumor ablation. These findings have significant implications for improving clinical outcomes in hepatocellular carcinoma management, including reduced recurrence rates and minimized collateral damage. The PSO-based PID tuning strategy offers a practical solution to enhance RFA effectiveness, contributing to the advancement of radiofrequency ablation techniques.


Assuntos
Neoplasias Hepáticas , Ablação por Radiofrequência , Neoplasias Hepáticas/cirurgia , Ablação por Radiofrequência/métodos , Humanos , Carcinoma Hepatocelular/cirurgia , Animais , Algoritmos , Simulação por Computador , Ablação por Cateter/métodos
4.
Am J Transl Res ; 16(4): 1044-1061, 2024.
Artigo em Inglês | MEDLINE | ID: mdl-38715803

RESUMO

INTRODUCTION: Transforming medical research into real-world healthcare solutions is a complex endeavor that may benefit from the synergy between academic research, governmental support, and industry innovation. OBJECTIVES: In this article we delve into the framework of Translational Medical Research (TMR) in Brazil, elucidating the possible interplay between public universities and other pivotal stakeholders in the translational journey. METHODS: Our focal point is the Rapha® device, an innovative medical technology, as we explore its ethical and regulatory journey. We seek to understand the environment that shapes healthcare technology development through a mixed-methods research design, combining policy analysis with stakeholder interviews. RESULTS: The research begins by examining public policies, aiming to carve out a socially inclusive and advantageous ecosystem. We then highlight the pivotal components-steps, milestones, stakeholders, and policies that underpin the TMR process. Our findings reveal that while TMR frequently culminates in patents and technology transfer agreements, specific regulatory and production challenges exist, particularly during transitioning from the T3 (clinical trials) to T4 (public health practice) phase. We provide insights into its translational progression by tracing the developmental stages from foundational research (T0) to clinical trials (T3) for the Rapha® device. CONCLUSION: Ultimately, this study underscores TMR's vital role in advancing healthcare access and posits that academic institutions can significantly influence the creation of ethically robust, regulated, and impactful medical innovations, contributing meaningfully to global healthcare.

5.
J Am Geriatr Soc ; 72(9): 2921-2927, 2024 Sep.
Artigo em Inglês | MEDLINE | ID: mdl-38757979

RESUMO

The European Medicines Agency adopted their Geriatric Medicines Strategy more than a decade ago. The strategy aims at elucidating the evidence basis for marketing authorization of new medicines which will be used in the older population, and at ensuring the appropriate communication of findings to the patient and healthcare provider. During the past decade new tools and data sources have emerged to support the strategy goals, and their use should be considered. Possible concrete actions are presented to improve the design of clinical trials, the data collection both pre- and post-approval, the assessment of the findings, and the communication to assist informed prescription and safe medicine taking. Implementation and prioritization of these actions should be done from the perspective of addressing the needs of patients while maximizing efficient use of resources, with the aim of integrating geriatric aspects into routine medicines development and assessment.


Assuntos
Aprovação de Drogas , Humanos , Idoso , Geriatria , Política de Saúde , Europa (Continente)
6.
Mov Disord Clin Pract ; 11(7): 795-807, 2024 Jul.
Artigo em Inglês | MEDLINE | ID: mdl-38610081

RESUMO

BACKGROUND: Quantitative 3D movement analysis using inertial measurement units (IMUs) allows for a more detailed characterization of motor patterns than clinical assessment alone. It is essential to discriminate between gait features that are responsive or unresponsive to current therapies to better understand the underlying pathophysiological basis and identify potential therapeutic strategies. OBJECTIVES: This study aims to characterize the responsiveness and temporal evolution of different gait subcomponents in Parkinson's disease (PD) patients in their OFF and various ON states following levodopa administration, utilizing both wearable sensors and the gold-standard MDS-UPDRS motor part III. METHODS: Seventeen PD patients were assessed while wearing a full-body set of 15 IMUs in their OFF state and at 20-minute intervals following the administration of a supra-threshold levodopa dose. Gait was reconstructed using a biomechanical model of the human body to quantify how each feature was modulated. Comparisons with non-PD control subjects were conducted in parallel. RESULTS: Significant motor changes were observed in both the upper and lower limbs according to the MDS-UPDRS III, 40 minutes after levodopa intake. IMU-assisted 3D kinematics detected significant motor alterations as early as 20 minutes after levodopa administration, particularly in upper limbs metrics. Although all "pace-domain" gait features showed significant improvement in the Best-ON state, most rhythmicity, asymmetry, and variability features did not. CONCLUSION: IMUs are capable of detecting motor alterations earlier and in a more comprehensive manner than the MDS-UPDRS III. The upper limbs respond more rapidly to levodopa, possibly reflecting distinct thresholds to levodopa across striatal regions.


Assuntos
Antiparkinsonianos , Marcha , Levodopa , Doença de Parkinson , Humanos , Levodopa/uso terapêutico , Levodopa/administração & dosagem , Doença de Parkinson/tratamento farmacológico , Doença de Parkinson/fisiopatologia , Masculino , Fenômenos Biomecânicos , Feminino , Idoso , Pessoa de Meia-Idade , Antiparkinsonianos/uso terapêutico , Antiparkinsonianos/administração & dosagem , Marcha/efeitos dos fármacos , Transtornos Neurológicos da Marcha/fisiopatologia , Transtornos Neurológicos da Marcha/tratamento farmacológico , Transtornos Neurológicos da Marcha/diagnóstico , Transtornos Neurológicos da Marcha/etiologia , Índice de Gravidade de Doença
7.
Nat Rev Rheumatol ; 20(4): 241-251, 2024 Apr.
Artigo em Inglês | MEDLINE | ID: mdl-38485753

RESUMO

Historically, osteoporosis has been viewed as a disease of women, with research, trials of interventions and guidelines predominantly focused as such. It is apparent, however, that this condition causes a substantial health burden in men also, and that its assessment and management must ultimately be addressed across both sexes. In this article, an international multidisciplinary working group of the European Society for Clinical and Economic Aspects of Osteoporosis, Osteoarthritis and Musculoskeletal Diseases presents GRADE-assessed recommendations for the diagnosis, monitoring and treatment of osteoporosis in men. The recommendations are based on a comprehensive review of the latest research related to diagnostic and screening approaches for osteoporosis and its associated high fracture risk in men, covering disease burden, appropriate interpretation of bone densitometry (including the use of a female reference database for densitometric diagnosis in men) and absolute fracture risk, thresholds for treatment, and interventions that can be used therapeutically and their health economic evaluation. Future work should specifically address the efficacy of anti-osteoporosis medications, including denosumab and bone-forming therapies.


Assuntos
Fraturas Ósseas , Doenças Musculoesqueléticas , Osteoartrite , Osteoporose , Masculino , Feminino , Humanos , Osteoporose/diagnóstico , Osteoporose/tratamento farmacológico , Osteoartrite/complicações , Densidade Óssea
9.
Ethn Health ; 29(1): 62-76, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37612788

RESUMO

OBJECTIVE: To understand the risk of unplanned hysterectomy (UH) in pregnant women better in association with maternal sociodemographic characteristics, cardiovascular disease (CVD) risk factors, and current pregnancy complications. DESIGN: Using Florida birth data from 2005 to 2014, we investigated the possible interactions between known risk factors of having UH, including maternal sociodemographic characteristics, maternal medical history, and other pregnancy complications. Logistic regression models were constructed. Adjusted odds ratios and 95% confidence intervals were reported. RESULTS: Several interactions were observed that significantly affected odds of UH. Compared to non-Hispanic White women, Hispanic minority women were more likely to have an UH. The overall risk of UH for women with preterm birth (<37 weeks) and concurrently had premature rupture of membranes (PRoM), uterine rupture, or a previous cesarean delivery was significantly higher than women who delivered to term and had no pregnancy complications. Women who delivered via cesarean who also had preeclampsia, PRoM, or uterine rupture had an overall increased risk of UH. Significantly decreased risk of UH was seen for Black women less than 20 years old, women of other minority races with either less than a high school degree or a college degree or greater, women of other minority races with PRoM, and women with preterm birth and diabetes compared to respective reference groups. CONCLUSIONS: Maternal race, ethnicity, CVD risk factors, and current pregnancy complications affect the risk of UH in pregnant women through complex interactions that would not be seen in unadjusted models of risk analysis.


Assuntos
Doenças Cardiovasculares , Complicações na Gravidez , Nascimento Prematuro , Ruptura Uterina , Gravidez , Feminino , Recém-Nascido , Humanos , Adulto Jovem , Adulto , Etnicidade , Nascimento Prematuro/epidemiologia , Fatores Sociodemográficos , Doenças Cardiovasculares/epidemiologia , Complicações na Gravidez/epidemiologia , Fatores de Risco , Histerectomia , Estudos Retrospectivos
10.
Parkinsonism Relat Disord ; 118: 105921, 2024 Jan.
Artigo em Inglês | MEDLINE | ID: mdl-37976978

RESUMO

BACKGROUND: Data on the long-term survival and incidence of disability milestones after subthalamic nucleus deep brain stimulation (STN-DBS) in Parkinson's disease (PD) is limited. OBJECTIVES: To estimate mortality and assess the frequency/time-to-development of disability milestones (falls, freezing, hallucinations, dementia, and institutionalization) among PD patients post STN-DBS. METHODS: A longitudinal retrospective study of patients undergoing STN-DBS. For mortality, Cox proportional hazards regression analysis was performed. For disease milestones, competing risk analyses were performed and cumulative incidence functions reported. The strength of association between baselines features and event occurrence was calculated based on adjusted hazard ratios. RESULTS: The overall mortality for the 109 patients was 16 % (62.1 ± 21.3 months after surgery). Falls (73 %) and freezing (47 %) were both the earliest (40.4 ± 25.4 and 39.6 ± 28.4 months, respectively) and most frequent milestones. Dementia (34 %) and hallucinations (32 %) soon followed (56.2 ± 21.2 and mean 60.0 ± 20.7 months after surgery, respectively). Higher ADL scores in the OFF state and higher age at surgery were associated with falls, freezing, dementia and institutionalization. CONCLUSIONS: Long-term mortality rate is low after STN-DBS. Disease milestones occur later during the disease course, with motor milestones appearing first and at a higher frequency than cognitive ones.


Assuntos
Estimulação Encefálica Profunda , Demência , Doença de Parkinson , Núcleo Subtalâmico , Humanos , Doença de Parkinson/complicações , Núcleo Subtalâmico/fisiologia , Seguimentos , Estudos Retrospectivos , Estimulação Encefálica Profunda/efeitos adversos , Alucinações , Demência/complicações , Resultado do Tratamento
11.
Cult Health Sex ; 26(8): 1072-1087, 2024 Aug.
Artigo em Inglês | MEDLINE | ID: mdl-38156981

RESUMO

This article explores HIV awareness and prevention in a Latinx seasonal farmworker community of south Miami-Dade County in the USA. The study took place as part of a larger community assessment that aimed to determine community needs and resources related to substance abuse, violence and HIV in the Latinx seasonal farmworker communities of south Miami-Dade County, with a particular focus on fathers' and their male sons' relationships. The study collected data on HIV knowledge and prevention, healthcare-seeking behaviours, cultural norms, and communication barriers about HIV prevention between fathers and sons. Data were collected through in-depth interviews with community leaders, two focus groups with social and health services providers, and four focus groups involving fathers and their adolescent sons. A deductive approach to data analysis was undertaken. Five major themes were identified: (1) HIVrelated knowledge and perception; (2) HIV prevention strategies; (3) barriers and needs for tailored preventive health and care services in the community; (4) stress over sex-related communication; and (5) the dominance of traditional masculine gender norms in the household and the community.


Assuntos
Grupos Focais , Infecções por HIV , Conhecimentos, Atitudes e Prática em Saúde , Hispânico ou Latino , Pesquisa Qualitativa , População Rural , Humanos , Infecções por HIV/prevenção & controle , Infecções por HIV/etnologia , Florida , Masculino , Hispânico ou Latino/psicologia , Adulto , Adolescente , Fazendeiros/psicologia , Feminino , Pessoa de Meia-Idade , Aceitação pelo Paciente de Cuidados de Saúde/etnologia , Aceitação pelo Paciente de Cuidados de Saúde/psicologia , Entrevistas como Assunto
12.
Lancet Healthy Longev ; 4(12): e724-e729, 2023 12.
Artigo em Inglês | MEDLINE | ID: mdl-37977177

RESUMO

The International Council for Harmonisation of Technical Requirements for Pharmaceuticals for Human Use (ICH) E7, the guidance for the conduct of clinical trials in people older than age 65 years, dates from 1994. Since then, the inclusion of older people in clinical trials has hardly improved, particularly for the oldest old age group (individuals older than age 75 years), which is the fastest growing demographic bracket in the EU. Even though most medications are taken by this group, relevant endpoints and safety outcomes for this cohort are rarely included and reported, both in clinical trials and regulatory approval documents. To improve the critical appraisal and the regulatory review of medicines taken by frail older adults, eight recommendations are presented and discussed in this Health Policy. These recommendations are brought together from different perspectives and experience of the treatment of older patients. On one side, the perspective of medical practitioners from various clinical disciplines, with their direct experience of clinical decision making; on the other, the perspective of regulators assessing the data submitted in medicine registration dossiers, their relevance to the risk-benefit balance for older patients, and the communication of the findings in the product information. Efforts to improve the participation of older people in clinical trials have been in place for more than a decade, with little success. The recommendations presented here are relevant for stakeholders, authorities, pharmaceutical companies, and researchers alike, as the implementation of these measures is not under the capacity of a single entity. Improving the inclusion of frail older adults requires awareness, focus, and action on the part of those who can effect a much needed change.


Assuntos
Fragilidade , Idoso de 80 Anos ou mais , Idoso , Humanos , Idoso Fragilizado , Comunicação
13.
J Health Care Poor Underserved ; 34(3): 884-909, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-38015128

RESUMO

Their initial years in the U.S. can be stressful for recent Latino/a immigrants (RLIs). This study examines the association between perceived stress and depressive symptoms and the moderating effect of emotion regulation and dispositional mindfulness. Cross-sectional data from an ongoing longitudinal study of RLIs was used. Hierarchical multiple regression analyses were performed to examine simple main effects of the predictor variables on depressive symptoms. The study also tested the moderating effects of emotion regulation and dispositional mindfulness on the association between perceived stress and depressive symptoms. Greater perceived stress and cognitive reappraisal were associated with greater depressive symptoms. Lower levels of appraisal and higher levels of non-reactivity mindfulness strengthened the association between perceived stress and depressive symptoms. Findings can inform the development of culturally tailored interventions that account for distinct aspects of emotion regulation and dispositional mindfulness associated with managing stress and decreasing depressive symptoms among RLIs.


Assuntos
Emigrantes e Imigrantes , Regulação Emocional , Atenção Plena , Humanos , Estudos Transversais , Depressão , Estudos Longitudinais , Hispânico ou Latino , Estresse Psicológico
14.
Front Pharmacol ; 14: 1154573, 2023.
Artigo em Inglês | MEDLINE | ID: mdl-37841919

RESUMO

Introduction: Vancomycin is a frequently used antibiotic for treating severe infections caused by multidrug-resistant, Gram-positive pathogens. To ensure its effectiveness and minimize the risk of nephrotoxicity, safe administration and dose monitoring are crucial. Understanding the impact of vancomycin serum levels on clinical outcomes is of paramount importance, necessitating improved knowledge on its use, dose monitoring, nephrotoxicity, and safe administration. Objective: This study aimed to evaluate the incidence of acute kidney injury (AKI) in patients receiving vancomycin before and after the implementation of an institutional protocol for vancomycin administration in a public tertiary hospital in southern Brazil. Materials and methods: A cross-sectional study design was employed, analyzing data from the electronic medical records of 422 patients who received vancomycin. The patient population was divided into two independent cohorts: those treated in 2016 (pre-protocol) and those treated in 2018 (post-protocol), following the implementation of the institutional vancomycin administration protocol. Results: The study included 211 patients in each year of assessment. Patients from both cohorts had a Charlson Comorbidity Index (CCI) score of 4. The post-protocol cohort consisted of older individuals, with a mean age of 62.8 years. In addition, patients in the post-protocol year had higher baseline creatinine levels, higher rates of intensive care unit (ICU) hospitalization, and increased use of vasopressors. In the pre-protocol year, patients received vancomycin therapy for a longer duration. When comparing the incidence of AKI between the two groups, an intervention study revealed rates of 38.4% in group 1 and 20.9% in group 2, indicating a significant reduction (p < 0.001) in the post-protocol group. A logistic regression model was developed to predict AKI, incorporating variables that demonstrated significance (p ≤ 0.250) in bivariate analysis and those recognized in the literature as important factors for AKI, such as the duration of therapy, vancomycin serum level, and ICU hospitalization. The logistic regression classification performance was assessed using a receiver operating characteristic (ROC) curve, yielding an area under the curve of 0.764, signifying acceptable discrimination of the regression model. Conclusion: Implementation of the institutional protocol for vancomycin administration resulted in a significant and cost-effective impact, ensuring appropriate therapeutic dosing, reducing adverse events (e.g., nephrotoxicity), and improving clinical outcomes for patients in the study population.

15.
Discov Nano ; 18(1): 118, 2023 Sep 21.
Artigo em Inglês | MEDLINE | ID: mdl-37733165

RESUMO

BACKGROUND: It is known that some sectors of hospitals have high bacteria and virus loads that can remain as aerosols in the air and represent a significant health threat for patients and mainly professionals that work in the place daily. Therefore, the need for a respirator able to improve the filtration barrier of N95 masks and even inactivating airborne virus and bacteria becomes apparent. Such a fact motivated the creation of a new N95 respirator which employs chitosan nanoparticles on its intermediate layer (SN95 + CNP). RESULTS: The average chitosan nanoparticle size obtained was 165.20 ± 35.00 nm, with a polydispersity index of 0.36 ± 0.03 and a zeta potential of 47.50 ± 1.70 mV. Mechanical tests demonstrate that the SN95 + CNP respirator is more resistant and meets the safety requisites of aerosol penetration, resistance to breath and flammability, presenting higher potential to filtrate microbial and viral particles when compared to conventional SN95 respirators. Furthermore, biological in vitro tests on bacteria, fungi and mammalian cell lines (HaCat, Vero E6 and CCL-81) corroborate the hypothesis that our SN95 + CNP respirator presents strong antimicrobial activity and is safe for human use. There was a reduction of 96.83% of the alphacoronavirus virus and 99% of H1N1 virus and MHV-3 betacoronavirus after 120 min of contact compared to the conventional respirator (SN95), demonstrating that SN95 + CNP have a relevant potential as personal protection equipment. CONCLUSIONS: Due to chitosan nanotechnology, our novel N95 respirator presents improved mechanical, antimicrobial and antiviral characteristics.

16.
Artigo em Inglês | MEDLINE | ID: mdl-37495905

RESUMO

BACKGROUND: Our study examines the effects of distinct HIV stigma subtypes on retention in care and racial-ethnic differences among persons with HIV (PWH). METHODS: Using Florida Medical Monitoring Project 2015-2017 data, we analyzed patients' clinical and behavioral characteristics. We analyzed 89,889 PWH in Florida (50.0% non-Hispanic Blacks, 20.8% Hispanics, 29.2% non-Hispanic whites). HIV stigma subtypes, negative self-image, anticipated stigma, personalized stigma, and retention in care were examined with logistic regressions. RESULTS: People with high negative self-image and anticipated stigma were less likely to be retained (CI: 0.84-0.92; 0.47-0.53). The association between HIV-related stigma subtypes and retention in care differed between Black, White, and Hispanic participants. Negative self-image was associated with higher retention rates among Hispanics (CI: 5.64-9.26) and Whites (CI: 1.04-1.27), while low retention rates among Blacks (0.617-0.686). The likelihood of staying in care was lower across all racial-ethnic groups when the anticipated stigma was high or moderate. In contrast, personalized stigma increased retention across all racial-ethnic groups. CONCLUSION: Results showed that distinct types of HIV stigma differentially impact retention, and these associations differ by race and ethnicity. Future interventions should address the effect HIV stigma subtypes have on racially minoritized PWH retention.

17.
Hisp Health Care Int ; : 15404153231187394, 2023 Jul 16.
Artigo em Inglês | MEDLINE | ID: mdl-37455338

RESUMO

The present longitudinal study examined changes in perceived access to health care among a recently immigrated cohort of Latina young adults who were assessed annually during their first 3 years in the United States. A parallel process growth model of perceived access to health care and neighborhood collective efficacy was examined, accounting for socioeconomic indicators and immigration status. Five hundred thirty Latina young adults (ages 18-23) participated at baseline assessment, and approximately 95% were retained over three annual assessment time points. Participants' mean level of perceived access to health care increased during their initial 3 years in the United States. Women who reported more of an increase in perceived access to health care tended to also indicate increased neighborhood collective efficacy relative to their peers during their first 3 years in the United States. Findings offer important information about the individual- and community-level factors that influence recently immigrated Latinas' health care access.

18.
Artigo em Inglês | MEDLINE | ID: mdl-37425032

RESUMO

Exposure to ethnic discrimination has been conceptualized as a sociocultural stressor that is associated with lower self-rated health. However, this association remains understudied among Hispanics and less is known about constructs that may mitigate the effects of ethnic discrimination on self-rated health. Accordingly, this study aimed to (a) examine the association between ethnic discrimination and self-rated health among Hispanic emerging adults (ages 18-25), and (b) examine the extent to which self-esteem and resilience may moderate this association. A convenience sample of 200 Hispanic emerging adults from Arizona (n=99) and Florida (n=101) was recruited to complete a cross-sectional survey. Data were analyzed using hierarchical multiple regression and moderation analyses. Results indicate that higher ethnic discrimination was associated with lower self-rated health. Moderation analyses indicated that self-esteem functioned as a moderator that weakened the association between ethnic discrimination and self-rated health; however, resilience did not function similarly as a moderator. This study adds to the limited literature on ethnic discrimination and self-rated health among Hispanics and highlights that psychological factors, such as enhancing self-esteem, may help buffer the adverse effects of ethnic discrimination on health outcomes.

19.
Sensors (Basel) ; 23(11)2023 May 24.
Artigo em Inglês | MEDLINE | ID: mdl-37299746

RESUMO

Asphalt mixes comprise aggregates, additives and bitumen. The aggregates are of varying sizes, and the finest category, referred to as sands, encompasses the so-called filler particles present in the mixture, which are smaller than 0.063 mm. As part of the H2020 CAPRI project, the authors present a prototype for measuring filler flow, through vibration analysis. The vibrations are generated by the filler particles crashing to a slim steel bar capable of withstanding the challenging conditions of temperature and pressure within the aspiration pipe of an industrial baghouse. This paper presents a prototype developed to address the need for quantifying the amount of filler in cold aggregates, considering the unavailability of commercially viable sensors suitable for the conditions encountered during asphalt mix production. In laboratory settings, the prototype simulates the aspiration process of a baghouse in an asphalt plant, accurately reproducing particle concentration and mass flow conditions. The experiments performed demonstrate that an accelerometer positioned outside the pipe can replicate the filler flow within the pipe, even when the filler aspiration conditions differ. The obtained results enable extrapolation from the laboratory model to a real-world baghouse model, making it applicable to various aspiration processes, particularly those involving baghouses. Moreover, this paper provides open access to all the data and results used, as part of our commitment to the CAPRI project, with the principles of open science.


Assuntos
Poeira , Vibração , Poeira/análise , Hidrocarbonetos/análise
20.
Am J Drug Alcohol Abuse ; 49(2): 216-227, 2023 03 04.
Artigo em Inglês | MEDLINE | ID: mdl-36898052

RESUMO

Background: Previous research conducted among Latino/a immigrants has shown the underlying effect that exposure to stress after immigrating to the U.S. (i.e. health access, racial/ethnic discrimination, and language barriers) has on alcohol use patterns. However, given the demographic shifts in recent immigrants, understanding the influence of stress before (i.e. poverty, healthcare, and educational opportunities) and after immigration on their alcohol use (i.e. alcohol consumption and drinking behaviors in the past 12 months) in the context of migration and traditional gender roles is warranted.Objectives: To examine the (a) cumulative effects of pre- to post-immigration stress, (b) respective moderating effects of traditional gender roles, and (c) forced migration on alcohol use for men and women.Methods: Hierarchical multiple regression and moderation analyses were conducted on a cross-sectional sample of 529 (N = 268 men, N = 261 women) adult (18-34 years) from recent Latino/a immigrants in South Florida.Results: Gender had a statistically significant difference on alcohol use, (F 527) = 18.68, p < .001, with men (p = 4.36 ± SE =.22) reporting higher alcohol use than women (p = 3.08 ± SE =.20). Post-immigration stress (ß = .12, p = .03) but not pre-migration stress had a statistically significant association with alcohol use. There is no interaction effect by traditional gender roles and forced migration on the associations between pre- to post-immigration stress and alcohol use.Conclusion: Results suggest that post-immigration stress may be a reasonable intervention target to mitigate alcohol use among recent Latino/a immigrants, particularly among men.


Assuntos
Emigrantes e Imigrantes , Papel de Gênero , Masculino , Humanos , Adulto , Feminino , Estudos Transversais , Consumo de Bebidas Alcoólicas/epidemiologia , Hispânico ou Latino
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