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Hospital Night Shift and Its Effects on the Quality of Sleep, the Quality of Life, and Vigilance Troubles among Nurses

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International Journal of Clinical Medicine 2014年第10期5卷 572-583页

作者： Wided Boughattas Olfa El Maalel Ridha Ben Chikh Maher Maoua Kalboussi Houda Aicha Braham Houssem Rhif Souheil Chatti Faten Debbabi Mohamed Dogui nejib mrizak Neurophysiology Department Sahloul Teaching Hospital Sousse Tunisia Occupational Medicine and Professional Pathologies Department Medicine Faculty of Sousse Sousse Tunisia

Introduction: The exposure to shift works, and especially to night shift, goes against the circadian rythmicity of the social man, which brings about a multitude of disruptive effects on health. In a hospital environment, such night shift is necessary so as to ensure the continuity of care. Sleep and vigilance disorders related to this work mode are frequent and often pose adaptation problems. The objective of this study is to detect the harmful effects of night shift on sleep, vigilance and the quality of life of nurses in Farhat Hached Teaching Hospital in Sousse. Material and Methods: It is a cross-sectional study carried out among two groups of nurses: one group performing a fixed night work and the other one working permanently during the day at Farhat Hached Teaching Hospital in Sousse. Data collection is mainly based on validated questionnaires evaluating sleep quality (Pittsburg sleep quality index), daytime sleepiness (Epworth sleepiness scale), sleep typology (Horne and Ostberg questionnaire), and the quality of life (SF-12). An objective evaluation of vigilance was realized by the study of reaction time and error rates to different tasks of “Super lab” software. Results: 50 night and 50 day nurses have been colligated. Both groups were age- and gender-matched. Sleep quality mean index was significantly higher among night nurses in comparison with day nurses (10.2 ± 5.9 versus 6.76 ± 5.16). After multivariate analysis, sleep quality was significantly correlated to age, department, schedule and the choice of schedule. Night shift was not related to daytime sleepiness. The objective analysis of vigilance showed that the reaction time to different tasks exploring the attentional mechanisms, as well as errors rate, were significantly more important among the night group. The mental score of the quality of life was significantly higher among day nurses. However, such difference was not significant with regard to physical score. Conclusion: The findings of our s

关键词： Night Shift Nurse Quality of Life Sleep Vigilance

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Buerger’s Disease and Fitness for Work in a Flight Personnel: A Case Report

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Occupational Diseases and Environmental Medicine 2022年第2期10卷 71-77页

作者： Imen Jammeli Asma Aloui Malek Ben Abdelkader Zeineb Athimni Marwa Bouhoula Chouchene Asma Imen Kacem Maher Maoua Aicha Brahem Houda Kalboussi Olfa El Maalel Souhaiel Chatti nejib mrizak University Hospital Farhat Hached Sousse Tunisia Department of Occupational Medicine University Hospital Ibnou El Jazzar Faculty of Medicine of Sousse University of Sousse Sousse Tunisia

Buerger’s disease, also called thromboangiitis obliterans (TAO), is an inflammatory disease affecting small and medium size blood vessels of the limbs. Several risk factors are strongly associated with this disease. In fact, heavy smokers represent 99% of patients diagnosed with Buerger’s disease and smoking cessation can slow down the progression of the pathology. Ulcers and gangrene are very common complications and TAO may also cause a vasculitis as well as ischemic damage to the distal part of the limbs that can eventually lead to limb amputation. Here, we report the case of a 43 years old patient, a flight personnel working in a Tunisian airline company who consults for a lesion of the left toe that appeared 2 weeks ago. He is a chronic inveterate smoker with 36 pack-years. The diagnosis of TAO was made based on the clinical presentation and the results of the Doppler Ultrasound of the left toe. This disease has a major impact on the quality of life due to the risk of necrotic ulcers and amputation. Navigation is a profession that requires a high level of physical and mental fitness. According to the international and Tunisian standards, the applicant or the holder of medical certificate must not have a cardiovascular condition that may affect the safety of the exercise.

关键词： Buerger’s Disease Flight Personnel Medical Fitness

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Healing Humor: The Use of Humor in the Nurse-Patient Relationship

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Occupational Diseases and Environmental Medicine 2022年第3期10卷 217-231页

作者： Farah Chelly Imène Kacem Amen Moussa Amal Ghenim Imen Krifa Feriel Methamem Asma Chouachane Asma Aloui Aicha Brahem Houda Kalboussi Olfa El Maalel Souhail Chatti Maher Maoua Sameh Bannanou nejib mrizak Université de Sousse Faculty of Medicine of Sousse Sousse Tunisia Department of Occupational Medicine Farhat Hached Academic Hospital Sousse Tunisia University of Sciences Arts and Techniques of Sousse Sousse Tunisia

Objective: To identify the importance of using humor in patient/nurse relationship, its factors, its conditions and the barriers that might limit its use. Methods: We systematically searched PubMed, Science Direct and Google Scholar, for relevant articles published in English between 2010 and 2019. We included the studies that investigated humor between nurses and their patient’s relationship. Results: From the initial 287 articles found, 15 were included for final revision. Data allowed retrieving information on humor definition;its applicability as a nursing intervention;humor as a tool to improve nurse-patient communication and relationship;influencing factors;humor benefits in health care context and the limits that come against its use. Conclusion: Humor is considered a powerful communication tool, it promotes well-being, relieves anxiety and stress, helps deal with stressful situations but it should be used cautiously in order to prevent undesired consequences.

关键词： Humor Patient/Nurse Relationship Communication

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Chronic hepatitis B virus infection in Eastern Ethiopia:Clinical characteristics and determinants of cirrhosis

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World Journal of Hepatology 2024年第7期16卷 995-1008页

作者： nejib Y Ismael Semir A Usmael Nega B Belay Hailemichael Desalegn Mekonen Asgeir Johannessen Stian MS Orlien Haramaya University College of Health and Medical SciencesHarar 252Ethiopia Aklilu Lemma Institute of Pathobiology Addis Ababa UniversityAddis Ababa 1000Ethiopia Regional Centre for Imported and Tropical Diseases Oslo University HospitalOslo 0450UllevålNorway Internal Medicine Gastroenterology and Hepatology UnitSaint Paul’s Hospital Millennium Medical CollegeAddis Ababa 1000Ethiopia Department of Infectious Disease Vestfold Hospital TrustTønsberg 3103Norway Institute of Clinical Medicine Oslo UniversityOslo 0318Norway Department of PediatricsOslo UniversityOslo 0450UllevålNorway

BACKGROUND Chronic hepatitis B(CHB)virus infection is a major cause of liver-associated morbidity and mortality,particularly in low-income countries.A better understanding of the epidemiological,clinical,and virological characteristics of CHB will guide appropriate treatment strategies and improve the control and management of CHB in *** To investigate the characteristics of CHB in Eastern Ethiopia and assess the efficacy and safety of antiviral *** This cohort study included 193 adults who were human immunodeficiency virus-negative with CHB between June 2016 and December *** assessments included chemistry,serologic,and viral markers.χ^(2) tests,Mann-Whitney U tests,and logistic regression analyses were used to identify the determinants of *** disoproxil fumarate(TDF)was initiated using treatment criteria from the Ethiopian CHB pilot *** A total of 132 patients(68.4%)were men,with a median age of 30 years[interquartile range(IQR):24-38].At enrollment,60(31.1%)patients had cirrhosis,of whom 35(58.3%)had decompensated *** use,hepatitis B envelope antigen positivity,and a high viral load were independently associated with ***,66 patients(33.4%)fulfilled the treatment criteria and 59(30.6%)started *** 29 patients who completed 24 months of treatment,the median aspartate aminotransferase to platelet ratio index declined from 1.54(IQR:0.66-2.91)to 1.10(IQR:0.75-2.53)(P=0.002),and viral suppression was achieved in 80.9%and 100%of patients after 12 months and 24 months of treatment,*** the treated patients,12(20.3%)died within the first 6 months of treatment,of whom 8 had decompensated *** This study highlights the high prevalence of cirrhosis,initial mortality,and the efficacy of TDF *** up measures to prevent and control CHB infections in Ethiopia is crucial.

关键词： Chronic hepatitis B Cirrhosis Cohort study Resource-limited settings Sub-Saharan Africa

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Achieving room-temperature M_(2)-phase VO_(2) nanowires for superior thermal actuation

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Nano Research 2021年第11期14卷 4146-4153页

作者： Yong-Qiang Zhang Kai Chen Hao Shen Yue-Cun Wang Mohamed nejib Hedhili Xixiang Zhang Ju Li Zhi-Wei Shan Center for Advancing Materials Performance from the Nanoscale State Key Laboratory for Mechanical Behavior of MaterialsXi’an Jiaotong UniversityXi’an710049China Physical Science and Engineering Division King Abdullah University of Science and Technology(KAUST)Thuwal23955-6900Saudi Arabia Departments of Nuclear Science and Engineering and Materials Science and Engineering Massachusetts Institute of TechnologyCambridgeMA02139USA

Vanadium dioxide (VO_(2)) has emerged as a promising micro-actuator material for its large amplitude and high work density across the transition between the insulating (M_(1) and M_(2)) and metallic (R) phase. Even though M_(2)–R transition offers about 70% higher transformation stress than M_(1)–R structural phase transition, the application of the M_(2) phase in the micro-actuators is hindered by the fact that previously, M_(2) phase can only stay stable under tensile stress. In this work, we propose and verify that by synthesizing the VO_(2) nanowires under optimized oxygen-rich conditions, stoichiometry change can be introduced into the nanowires (NWs) which in turn yield a large number free-standing single-crystalline M_(2)-phase NWs stable at room temperature. In addition, we demonstrate that the output stress of the M_(2)-phase NWs is about 65% higher than that of the M_(1)-phase NWs during their transition to R phase, quite close to the theoretical prediction. Our findings open new avenues towards enhancing the performance of VO_(2)-based actuators by using M_(2)–R transition.

关键词： single crystalline vanadium dioxide(VO_(2))nanowires metal-insulator transition room-temperature M_(2)phase micro-actuator martensitic transformation transformation strain

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Comparative Performance of Fixed-Speed and Variable-Speed Wind Turbine Generator Systems

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Journal of Mechanics Engineering and Automation 2011年第1期1卷 74-81页

作者： Mohamed Mansour Mohamed nejib Mansouri Mohamed Faouzi Mimouni Electrical Engineering Department Engineering School of Monastir Monastir 5019 Tunisia

In the early development of the wind energy, the majority of the wind turbines have been operated at constant speed. Subsequently, the number of variable-speed wind turbines installed in wind farms has increased. In this paper, a comparative performance of fixed and variable speed wind generators with Pitch angle control has been presented. The first is based on a squirrel cage Induction Generator （IG） of 315 kW rated power, connected directly to the grid. The second incorporated a Permanent Magnet Synchronous Generator （PMSG） of 750 kW rated power. The performances of each studied wind generator are evaluated by simulation works and variable speed operation is highlighted as preferred mode of operation.

关键词： Fixed speed wind generator variable speed wind generator squirrel cage induction generator permanent magnet synchronous generator (PMSG) maximum power point tracking (MPPT) pitch control.

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Cascaded H-Bridges Asymmetrical 11-Levels Optimization

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材料科学与工程（中英文B版） 2011年第4期1卷 496-503页

作者： Mohamed nejib Ben Nasr Khammassi Anis Kebir Faouzi Ben Ammar Unite de Recherche SICISI ESSTT 5av. Taha Hussein BP 56 Bab Mnara-lO08 Universite de Tunis Tunisia Unitd de Recherche.＂ LSE INSA T Centre Urbain Nord BP 676 1080 Tunis

The following dissertation aims at investigating the multilevel topology basis through the analyses of the harmonic elimination control modeling methodology of the asymmetrical inverter. Thus the contribution of this paper can be summarized mainly by the fact that the pre-calculated PWM control used to control the symmetrical structure, as applied to the asymmetrical structure with a reduced number of cells, provides the same performance level resolution and signal strength to the load terminals, which guarantees a constant voltage frequency report. This observation is similar for the three cells, which allows the use of different drivers such as MOSFET, IGBT and GTO. These results have a good performance from the intrinsic proprieties of each semiconductor for each cell.

关键词：水平分辨率不对称非对称结构优化 H桥级联 MOSFET 消谐控制

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Intracranial Epidural Plasmacytoma Presenting as a Neurosurgical Emergency: Case Report

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Open Journal of Modern Neurosurgery 2013年第3期3卷 41-43页

作者： Atef Ben Nsir Mehdi Darmoul Rim Hadhri Hattab nejib Department of Neurosurgery Fattouma Bourguiba University Hospital Monastir Tunisia Department of Pathology Fattouma Bourguiba University Hospital Monastir Tunisia

Intracranial plasmacytomas are infrequently encountered in neurosurgical practice, and the literature consists predominantly of isolated case reports. We present the first English medical literature case of intracranial epidural plasmacytoma with no calvarial lytic changes masquerading as an extradural hematoma in a 60 year-old-man. In addition, we discuss the pathogenesis of this unusual tumor location with brief review of the relevant literature concerning its treatment and outcome.

关键词： Multiple Myeloma Plasmacytoma Epidural Surgery

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Huge supratentorial cortical ependymoma in a young child:case report and literature review

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Neuroimmunology and Neuroinflammation 2016年第1期3卷 141-144页

作者： Mehdi Darmoul Mohamed Kilani Atef Ben Nsir Mohamed nejib Hattab Neurosurgery Department Fattouma Bourguiba University Hospital5000 MonastirTunisia

Supratentorial cortical ependymomas are uncommon in the pediatric population and extremely rare in very young ***,tumors of the anaplastic type are also less common in *** authors report one case of anaplastic cortical ependymoma in a 16-month-old girl who presented with a 7-day history of left side weakness and rapid neurological *** imaging with computed tomography and magnetic resonance imaging scanning showed a huge right fronto-parietal cystic and solid lesion compressing the brain *** young child was operated via a transparietal approach with gross total resection of the *** tumor’s histology was anaplastic *** chemotherapy was given post operatively and the patient remained well without recurrence after 20 months of follow-up.

关键词： Cortical ependymoma young child surgery chemotherapy prognosis

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Harmonic Distortion Rate Analysis of H-Bridges Multilevel Inverter

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材料科学与工程（中英文B版） 2011年第3期1卷 308-315页

作者： Mohamed nejib Ben Nasr Khammassi Anis Kebir Faouzi Ben Ammar Unite de recherche SICISI ESSTT 5av. Taha Hussein BP 56 Bab Mnara-1008 Universite de Tunis Tunisia Unite de recherche. LSE INSAT Centre Urbain Nord BP 676 1080 Tunisia

This paper represents comparative study on two control techniques applied to H-bridges multilevel inverter. The considered techniques are standard PWM and harmonic elimination control. Their performances are compared in terms of THD and commutation’s losses so that the choice of power switches is optimized. Simulation results indicated that the harmonic elimination technique exhibits better results than the standard PWM technique, which is sustained by the reduce of the commutation losses, and a power rise for the switches ensuring the use of GTOs, IGCTs.

关键词：多电平逆变器 H桥失真率 PWM技术谐波技术标准电源开关控制技术

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