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Lagemann E, Brunton SL, Schröder W, Lagemann C. Towards extending the aircraft flight envelope by mitigating transonic airfoil buffet. Nat Commun 2024; 15:5020. [PMID: 38866747 PMCID: PMC11169508 DOI: 10.1038/s41467-024-49361-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Accepted: 06/02/2024] [Indexed: 06/14/2024] Open
Abstract
In the age of globalization, commercial aviation plays a central role in maintaining our international connectivity by providing fast air transport services for passengers and freight. However, the upper limit of the aircraft flight envelope, i.e., its operational limit in the high-speed (transonic) regime, is usually fixed by the occurrence of transonic aeroelastic effects. These harmful structural vibrations are associated with an aerodynamic instability called transonic buffet. It refers to shock wave oscillations occurring on the aircraft wings, which induce unsteady aerodynamic loads acting on the wing structure. Since the structural response can cause severe structural damage endangering flight safety, the aviation industry is highly interested in suppressing transonic buffet to extend the flight envelope to higher aircraft speeds. In this contribution, we demonstrate experimentally that the application of porous trailing edges substantially attenuates the buffet phenomenon. Since porous trailing edges have the additional benefit of reducing acoustic aircraft emissions, they could prospectively provide faster air transport with reduced noise emissions.
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Affiliation(s)
- Esther Lagemann
- AI Institute in Dynamic Systems, Department of Mechanical Engineering, University of Washington, Seattle, WA, 98195, USA.
- Institute of Aerodynamics, RWTH Aachen University, Wüllnerstraße 5a, 52062, Aachen, Germany.
| | - Steven L Brunton
- AI Institute in Dynamic Systems, Department of Mechanical Engineering, University of Washington, Seattle, WA, 98195, USA
| | - Wolfgang Schröder
- Institute of Aerodynamics, RWTH Aachen University, Wüllnerstraße 5a, 52062, Aachen, Germany
| | - Christian Lagemann
- AI Institute in Dynamic Systems, Department of Mechanical Engineering, University of Washington, Seattle, WA, 98195, USA
- Institute of Aerodynamics, RWTH Aachen University, Wüllnerstraße 5a, 52062, Aachen, Germany
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Wang C, Li Y, Shen Y, Liu Y, Ru P, Wei Z, Xie D. Addressing the influencing path of social noise exposure risk perception on noise mitigation behavior. JOURNAL OF ENVIRONMENTAL MANAGEMENT 2024; 353:120238. [PMID: 38335593 DOI: 10.1016/j.jenvman.2024.120238] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/21/2023] [Revised: 01/17/2024] [Accepted: 01/25/2024] [Indexed: 02/12/2024]
Abstract
Noise interference has become a common health risk in population-densified urban areas where social noise occurs frequently. However, the influence of an individual's perception of social noise exposure risk on reactive behavior remains unknown. This study developed an integrative psychosocial perspective-based model that includes constructs from two theoretical frameworks (the Theory of Planned Behavior and the Value-Belief-Norm theory) to analyze noise risk perception and behavioral intention for social noise mitigation. Haidian District, Beijing, was selected as the case study area and 300 questionnaires were distributed. The results showed that personal attributes had significant effects on residents' noise exposure risk perception and noise-mitigation behavioral intentions. Noise perception, as represented by awareness of consequences and ascription of responsibility, was significantly related to noise mitigation behavioral intention. Awareness of consequences directly positively influenced behavioral intention (β = 0.235, p < 0.001) and indirectly positively influenced behavioral intention through the mediating effect of the ascription of responsibility, which accounted for 24 % of the total effect of awareness of consequences on behavioral intention. This study provides valuable insights into the risks of social noise and encourages adaptive measures to reduce it.
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Affiliation(s)
- Chunyan Wang
- School of Environment, Tsinghua University, China
| | - Yihan Li
- School of Environment, Tsinghua University, China
| | - Yayun Shen
- School of Public Policy& Management, Tsinghua University, China
| | - Yi Liu
- School of Environment, Tsinghua University, China.
| | - Peng Ru
- School of Public Policy& Management, Tsinghua University, China.
| | - Zeyang Wei
- School of Environment, Tsinghua University, China
| | - Dan Xie
- School of Environment, Tsinghua University, China
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Assunção AÁ, Abreu MNS. Inequalities in employment and gender differences in the prevalence of work-related musculoskeletal disorders cases: a nationwide survey from Brazil, 2019. Public Health 2023; 225:244-250. [PMID: 37949015 DOI: 10.1016/j.puhe.2023.10.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Revised: 09/12/2023] [Accepted: 10/03/2023] [Indexed: 11/12/2023]
Abstract
OBJECTIVES The present study aimed to investigate the prevalence of work-related musculoskeletal disorders (WRMDs) and to determine whether differences regarding the employment status (standard and non-standard), according to gender, increased the probability of WRMDs. STUDY DESIGN Cross-sectional study. METHODS Data from the 2019 National Health Survey (NHS) in Brazil were used. In total, 50,066 participants, both women and men, aged 18-65 years were included. Data were analysed for self-reported WRMDs. The binary logistic regression model, adjusting for possible covariables, was used to evaluate the association between working in the labour market and the occurrence of WRMDs. For covariates in the multivariate analysis, a P-value of <0.20 was considered in the univariate analysis. The variables with a P-value of <0.05 remained in the model. The odds ratio (OR), together with their confidence intervals at 95% (95% CI), were estimates both in the univariate and multivariate models. RESULTS The prevalence of WRMDs was higher in women (4.2%) than men (1.9%). The likelihood of WRMDs was associated with the employment status only among men and proved to be lower for non-standard employment than standard employment (OR = 0.61; 95% CI = 0.43-0.87). Only among women, an increase in the likelihood of WRMDs associated with exposure to occupational noise was observed (OR = 1.77; 95% CI = 1.31-2.38) and a less favourable self-reported health (OR = 1.66; 95% CI = 1.08-2.54). Results showed higher change of WRMD for men and women associated with rheumatoid arthritis (men: OR = 3.94; 95% CI = 2.10-7.38; women: OR = 2.39; 95% CI = 1.68-3.39), depression (men: OR = 2.62; 95% CI = 1.54-4.45; women: OR = 2.39; 95% CI = 1.68-3.39) and occupational accidents (men: OR = 4.36; 95% CI = 2.34-8.14; women: OR = 2.20; 95% CI = 1.19-4.07). CONCLUSIONS It is possible that the "double presence" that involves both the productive and reproductive spheres explains the higher prevalence of WRMDs among women Indicators that are sensitive to the effects of gender norms are necessary to understand the context of inequalities in the prevalence of WRMDs. The results of this study should be considered when developing strategies in the workplace and public health policies to reduce the prevalence of WRMDs.
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Affiliation(s)
- A Á Assunção
- Department of Preventive Medicine and Social Medicine, Health Public Postgraduate Program, School of Medicine, University of Minas Gerais, Av. Alfredo Balena 190, sala 705, Belo Horizonte, MG, CEP 30130-100, Brazil.
| | - M N S Abreu
- Department of Preventive Medicine and Social Medicine, Health Public Postgraduate Program, School of Medicine, University of Minas Gerais, Av. Alfredo Balena 190, sala 705, Belo Horizonte, MG, CEP 30130-100, Brazil
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Krittanawong C, Qadeer YK, Hayes RB, Wang Z, Virani S, Zeller M, Dadvand P, Lavie CJ. Noise Exposure and Cardiovascular Health. Curr Probl Cardiol 2023; 48:101938. [PMID: 37422031 DOI: 10.1016/j.cpcardiol.2023.101938] [Citation(s) in RCA: 8] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2023] [Accepted: 07/04/2023] [Indexed: 07/10/2023]
Abstract
Noise is considered an environmental stressor adversely affecting well-being and quality of life, inter-individual communications, and attention and cognitive function and inducing emotional responses, corresponding to noise annoyance. In addition, noise exposure is associated with nonauditory effects including worsening mental health, cognitive impairments, and adverse birth outcomes, sleep disorders, and increased annoyance. An accumulating body of evidence has indicated that traffic noise is also associated with CVD, through multiple pathways. It has been shown that psychological stress and mental health disorders such as depression and anxiety have a negative impact on the development of cardiovascular diseases and outcomes. Likewise, reduced sleep quality and/or duration has been reported to increase sympathetic nervous system activity, which can predispose to conditions like hypertension and diabetes mellitus, known risk factors for CVD. Finally, there seems to be a disruption in the hypothalamic-pituitary-axis secondary to noise pollution that also results in an increased risk of CVD. The World Health Organization has estimated that the number of DALYs (disability-adjusted life-years) lost resulting from environmental noise in Western Europe ranges from 1 to 1.6 million, making noise the second major contributor to the burden of disease in Europe, only after air pollution. Thus, we sought to explore the relationship between noise pollution and risk of CVD.
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Affiliation(s)
| | | | - Richard B Hayes
- Division of Epidemiology, Department of Population Health, NYU Grossman School of Medicine, New York, NY
| | - Zhen Wang
- Robert D. and Patricia E. Kern Center for the Science of Health Care Delivery, Mayo Clinic, Rochester, MN; Division of Health Care Policy and Research, Department of Health Sciences Research, Mayo Clinic, Rochester, MN
| | - Salim Virani
- Section of Cardiology, Baylor College of Medicine, Houston, TX; The Aga Khan University, Karachi, Pakistan; Baylor College of Medicine, Houston, TX, USA
| | - Marianne Zeller
- Laboratoire PEC2, EA 7460, Université de Bourgogne-Franche Comté, Dijon, France
| | - Payam Dadvand
- ISGlobal, Barcelona, Spain; Universitat Pompeu Fabra, Barcelona, Spain; CIBERESP (Centro de Investigación Biomédica en Red Epidemiología y Salud Pública), Madrid, Spain
| | - Carl J Lavie
- John Ochsner Heart and Vascular Institute, Ochsner Clinical School, The University of Queensland School of Medicine, New Orleans, LA, USA
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Vasconcelos RO, Gordillo-Martinez F, Ramos A, Lau IH. Effects of Noise Exposure and Ageing on Anxiety and Social Behaviour in Zebrafish. BIOLOGY 2023; 12:1165. [PMID: 37759565 PMCID: PMC10525370 DOI: 10.3390/biology12091165] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 08/11/2023] [Accepted: 08/11/2023] [Indexed: 09/29/2023]
Abstract
Noise pollution is creating a wide range of health problems related to physiological stress and anxiety that impact the social life of vertebrates, including humans. Ageing is known to be associated with changes in susceptibility to acoustic stimuli; however, the interaction between noise effects and senescence is not well understood. We tested the effects of 24 h continuous white noise (150 dB re 1 Pa) on both young adults and old zebrafish in terms of anxiety (novel tank diving test), social interactions (with mirror/conspecific attraction), and shoaling behaviour. Both noise and ageing induced higher anxiety responses in a novel environment. Since the old zebrafish showed longer bottom dwelling, acoustic treatment induced the opposite pattern with an initial increase in vertical exploration in the aged individuals. Both noise- and age-related anxiety responses were lowered when individuals were tested within a group. Regarding social interactions, both noise and ageing seemed to cause an increase in their proximity to a mirror. Although the results were not statistically significant, noise exposure seemed to further enhance conspecific attraction. Moreover, the interindividual distance within a shoal decreased with noise treatment in the aged individuals. This study is a first attempt to investigate the effects of both noise and ageing on zebrafish behaviour, suggesting the age-dependent physiological coping mechanisms associated with environmental stress.
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Affiliation(s)
- Raquel O. Vasconcelos
- Institute of Science and Environment, University of Saint Joseph, Macao, China
- MARE–Marine and Environmental Sciences Centre/ARNET—Aquatic Research Network, Faculdade de Ciências, Universidade de Lisboa, 1749-016 Lisbon, Portugal
- EPCV–Department of Life Sciences, Lusófona University, 1749-024 Lisbon, Portugal
| | | | - Andreia Ramos
- Institute of Science and Environment, University of Saint Joseph, Macao, China
| | - Ieng Hou Lau
- Institute of Science and Environment, University of Saint Joseph, Macao, China
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Hahad O, Beutel ME, Gilan DA, Chalabi J, Schuster AK, Gianicolo E, Lackner KJ, Lieb K, Galle PR, Wild PS, Daiber A, Münzel T. Noise annoyance and risk of prevalent and incident atrial fibrillation-A sex-specific analysis. Front Public Health 2022; 10:1061328. [PMID: 36536776 PMCID: PMC9758722 DOI: 10.3389/fpubh.2022.1061328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2022] [Accepted: 11/15/2022] [Indexed: 12/07/2022] Open
Abstract
Background While chronic exposure to high levels of noise was demonstrated to increase the risk of various cardiovascular diseases, the association between noise annoyance and risk of cardiovascular disease remains still inconsistent. Recently, we showed that noise annoyance is associated with prevalent atrial fibrillation in the general population. However, the association between noise annoyance and risk of incident atrial fibrillation as well as potential sex-differences remain still elusive. Methods and results 15,010 subjects from a German population-based cohort were examined at baseline (2007 to 2012) and follow-up five years later (2012 to 2017) to investigative the association between noise annoyance due to multiple sources and prevalent and incident atrial fibrillation. After multivariable adjustment, the results from logistic regression analyses revealed overall consistent and positive associations between noise annoyance and prevalent and incident atrial fibrillation in men, whereas this association was weaker in women, in particular with respect to incident atrial fibrillation. For instance, industrial noise annoyance was associated with 21% (95% confidence interval (CI) 9-34%) and 18% (8-29%) higher odds of prevalent atrial fibrillation in men and women, respectively. In prospective analysis, this association remained stable in men (odds ratio (OR) 1.25, 1.07-1.44), while in women no association was observed (OR 1.03, 0.89-1.18). Conclusions The findings suggest that noise annoyance can increase the risk of incident atrial fibrillation in a large population-based cohort and that men may be more sensitive to the adverse effects of noise annoyance with regard to the risk of atrial fibrillation.
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Affiliation(s)
- Omar Hahad
- Department of Cardiology–Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany,German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany,Leibniz Institute for Resilience Research (LIR), Mainz, Germany,*Correspondence: Omar Hahad
| | - Manfred E. Beutel
- Department of Psychosomatic Medicine and Psychotherapy, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Donya A. Gilan
- Leibniz Institute for Resilience Research (LIR), Mainz, Germany,Department of Psychiatry and Psychotherapy, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Julian Chalabi
- Preventive Cardiology and Preventive Medicine, Department of Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Alexander K. Schuster
- Department of Ophthalmology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Emilio Gianicolo
- Institute of Medical Biostatistics, Epidemiology and Informatics (IMBEI), University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany,Institute of Clinical Physiology, National Research Council, Lecce, Italy
| | - Karl J. Lackner
- Institute of Clinical Chemistry and Laboratory Medicine, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Klaus Lieb
- Leibniz Institute for Resilience Research (LIR), Mainz, Germany,Department of Psychiatry and Psychotherapy, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Peter R. Galle
- Department of Internal Medicine, Gastroenterology and Hepatology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Philipp S. Wild
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany,Preventive Cardiology and Preventive Medicine, Department of Cardiology, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany,Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany,Institute of Molecular Biology (IMB), Mainz, Germany
| | - Andreas Daiber
- Department of Cardiology–Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany,German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany,Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
| | - Thomas Münzel
- Department of Cardiology–Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany,German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, Mainz, Germany,Center for Thrombosis and Hemostasis, University Medical Center of the Johannes Gutenberg-University Mainz, Mainz, Germany
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Hahad O, Herzog J, Röösli M, Schmidt FP, Daiber A, Münzel T. Acute Exposure to Simulated Nocturnal Train Noise Leads to Impaired Sleep Quality and Endothelial Dysfunction in Young Healthy Men and Women: A Sex-Specific Analysis. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2022; 19:13844. [PMID: 36360723 PMCID: PMC9657624 DOI: 10.3390/ijerph192113844] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/14/2022] [Revised: 10/22/2022] [Accepted: 10/24/2022] [Indexed: 06/16/2023]
Abstract
A series of human field studies demonstrated that simulated nocturnal traffic noise exposure impaired sleep quality and endothelial function, which could be significantly improved after intake of vitamin C in case of endothelial function. However, it remains unclear whether these changes follow a sex-specific pattern. Thus, we aimed to analyze the effect of simulated nocturnal train noise exposure on sleep quality, endothelial function and its associated changes after vitamin C intake, and other hemodynamic and biochemical parameters in young healthy men and women. We used data from a randomized crossover study, wherein 70 healthy volunteers (50% women) were each exposed to one control pattern (regular background noise) and two different train noise scenarios (30 or 60 train noise events per night, with average sound pressure levels of 52 and 54 dB(A), respectively, and peak sound level of 73-75 dB(A)) in their homes for three nights. After each night, participants visited the study center for the measurement of endothelial function as well as other hemodynamic and biochemical parameters. Sleep quality measured via self-report was significantly impaired after noise 30 and noise 60 nights in both men and women (p < 0.001 vs. control). Likewise, endothelial function measured by flow-mediated dilation (FMD) was significantly impaired after noise 30 and noise 60 nights in both men and women (p < 0.001 vs. control). While in women, vitamin C intake significantly improved FMD after both noise 30 and noise 60 study nights compared to control nights, no significant changes were observed in men. Exposure to simulated nocturnal train noise impairs sleep quality and endothelial function in both men and women, whereas a significant improvement of endothelial function after noise exposure and vitamin C intake could only be observed in women. These findings suggest for the first time that in men other mechanisms such as oxidative stress causing endothelial dysfunction may come into play.
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Affiliation(s)
- Omar Hahad
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, 55131 Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, 55131 Mainz, Germany
- Leibniz Institute for Resilience Research (LIR), 55131 Mainz, Germany
| | - Johannes Herzog
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, 55131 Mainz, Germany
| | - Martin Röösli
- Swiss Tropical and Public Health Institute (Swiss TPH), 4123 Allschwil, Switzerland
- Faculty of Science, University of Basel, 4001 Basel, Switzerland
| | - Frank P. Schmidt
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, 55131 Mainz, Germany
| | - Andreas Daiber
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, 55131 Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, 55131 Mainz, Germany
| | - Thomas Münzel
- Department of Cardiology, Cardiology I, University Medical Center of the Johannes Gutenberg-University Mainz, 55131 Mainz, Germany
- German Center for Cardiovascular Research (DZHK), Partner Site Rhine-Main, 55131 Mainz, Germany
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