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Sameh Msaad,1 Nouha Ketata,2 Nesrine Kammoun,3 Rahma Gargouri,1 Rim Khemakhem,1 Sourour Abid,1 Saeb Bader,1 Sabrine Efidha,4 Narjes Abid,5 Jamel El Ghoul,6 Imen Sahnoun,4 Hazem Altalaa,1 Jihen Jdidi,2 Mohamed Jlidi,7 Nadia Keskes Boudaouara,8 Imen Gargouri,9 Najla Bahloul,1 Samy Kammoun1 1Department of Respiratory and Sleep Medicine, Hedi Chaker University Hospital of Sfax, Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia; 2Department of Preventive Medicine, Hedi Chaker University Hospital of Sfax, Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia; 3Tunisian Occupational Health and Safety Institute, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia; 4Department of Pneumology, Abderrahman Mami University Hospital of Ariana, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia; 5Department of Pneumology, Mohamed Taher Maamouri University Hospital of Nabeul, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia; 6Department of Pneumology, Habib Bourguiba University Hospital of Medenine, Faculty of Medicine of Sfax, University of Sfax, Sfax, Tunisia; 7Orthopedics and Traumatology Department, Mohamed Taher Maâmouri University Hospital of Nabeul, Faculty of Medicine of Tunis, University of Tunis EL Manar, Tunis, Tunisia; 8Department of Pneumology, Taher Sfar University Hospital of Mahdia, Faculty of Medicine of Monastir, University of Monastir, Monastir, Tunisia; 9Department of Pneumology, Farhat Hached University Hospital of Sousse, Faculty of Medicine of Sousse, University of Sousse, Sousse, TunisiaCorrespondence: Sameh Msaad, Tel +216 94 977 355, Email pneumo1972@gmail.comBackground: Sleep quality and disturbances have gained heightened scholarly attention due to their well-established association with both mental and physical health. This study aims to assess sleep-wake habits and disturbances in Tunisian adults.Methodology: This cross-sectional study employed an online questionnaire to assess 3074 adults ≥ 18 years. Primary outcomes, including sleep quality, daytime vigilance, mood, and subjective well-being, were measured using validated questionnaires [the Pittsburgh Sleep Quality Index (PSQI), the Insomnia Severity Index (ISI), the Epworth Sleepiness Scale (ESS), the Patient Health Questionnaire (PHQ)-9, and the World Health Organisation-Five Well-Being Index (WHO-5)].Results: Less than two-thirds (n= 1941; 63.1%) of participants were females and the mean age was 36.25± 13.56. The prevalence of poor sleep quality was 53.8% when defined as a PSQI > 5. The prevalence of insomnia, short sleep duration, long sleep duration, EDS, severe depression, and poor well-being were 14.5%, 34.7%, 12.3%, 32.4%, 7.4%, and 40.2%, respectively. Some factors were associated with an increased likelihood of poor sleep quality, including female gender, chronic hypnotics use, internet use close to bedtime, daily time spent on the internet > 3 hours, smoking, university- level education, nocturnal work, severe depression, impaired well-being status, insomnia, and EDS.Conclusion: The high prevalence of sleep-wake disturbances among Tunisian adults emphasizes the need for an appropriate screening strategy for high-risk groups. Individuals with unhealthy habits and routines were significantly more likely to experience these kinds of disturbances. Consequently, there is a pressing need for educational programs on sleep to foster healthier sleep patterns.Keywords: sleep, wake habits, sleep quality, insomnia, excessive daytime sleepiness, prevalence, risk factors

This work presents an anisotropic cylindrical source's gravitational expansion and collapse with the cosmological constant. For this purpose, we use the cylindrical symmetric metric and energy–momentum tensor to achieve Einstein's field equation component. The mass function is also used to assess the state of the trapped surface. The parametric form of the auxiliary solution is discovered. These presumptions enable us to examine the parameter range at the positive and negative expansion scalar transitions. The generated solution produces expanding and collapsing solutions correspondingly for positive and negative parameter values. A dimensionless measure of anisotropy, pressures and energy density are utilized as physical quantities. The included parameters are shown graphically. The cosmological constant has impacted both the expansion and collapse solutions to phenomena. [ABSTRACT FROM AUTHOR]

In this work, we have investigated the capability of CO2 capture by single-walled, carbon-deficient silicon carbide nanotubes (Si12C12-X; X = 1; 2). All calculations of the properties of the investigated systems were performed using density functional theory with plane wave basis sets and pseudopotentials. Electronic interactions were determined using the generalized gradient approximation method in terms of the Perdew-Burke-and Ernzerhof exchange–correlation functional. The analysis of the photoabsorption properties of the investigated systems was based on structural, electronic and optical properties. Analysis of the structural properties revealed that as number of C vacancy increases, bond length decreases, which agrees well with previous literature. Regarding the CO2 overpotential value, both Si12C11:Vc1 and Si12C10:Vc2 showed band edges of -1.5 eV and -1.45 eV, respectively, which are more negative than the standard overpotential value (-1.4 eV) for CO2 reduction. Analysis of the optical absorption spectra revealed good photon absorption by Si12C11:Vc1 (4.16% defect) and Si12C10:Vc2 (8.33% defect) in the visible region accompanied by negligible electron–hole recombination, while pristine SWSiCNT showed absorption in the UV region accompanied by strong electron–hole recombination. This study found that Si12C11:Vc1 and Si12C10:Vc2 are well-suited for CO2 capture and storage, while underlining the CO2 capture capability of pristine SWSiCNT. [ABSTRACT FROM AUTHOR]