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https://www.readbyqxmd.com/read/29677170/development-of-the-who-environmental-noise-guidelines-for-the-european-region-an-introduction
#1
Dorota Jarosińska, Marie-Ève Héroux, Poonum Wilkhu, James Creswick, Jos Verbeek, Jördis Wothge, Elizabet Paunović
Following the Parma Declaration on Environment and Health adopted at the Fifth Ministerial Conference (2010), the Ministers and representatives of Member States in the WHO European Region requested the World Health Organization (WHO) to develop updated guidelines on environmental noise, and called upon all stakeholders to reduce children's exposure to noise, including that from personal electronic devices. The WHO Environmental Noise Guidelines for the European Region will provide evidence-based policy guidance to Member States on protecting human health from noise originating from transportation (road traffic, railway and aircraft), wind turbine noise, and leisure noise in settings where people spend the majority of their time...
April 20, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29676177/acetylcholine-induced-ciliary-beat-of-the-human-nasal-mucosa-is-regulated-by-the-pannexin-1-channel-and-purinergic-p2x-receptor
#2
Ba H Do, Toyoaki Ohbuchi, Tetsuro Wakasugi, Hiroki Koizumi, Mitsuru Yokoyama, Nobusuke Hohchi, Hideaki Suzuki
Background Airway mucociliary transport is an important function for the clearance of inhaled foreign particulates in the respiratory tract. The present study aimed at investigating the regulatory mechanism of acetylcholine (Ach)-induced ciliary beat of the human nasal mucosa in ex vivo. Methods The inferior turbinate mucosa was collected from patients with chronic hypertrophic rhinitis during endoscopic surgery. The mucosa was cut into thin strips, and ciliary movement was observed under a phase-contrast light microscope with a high-speed digital video camera...
January 1, 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29676176/effect-of-mecp2-on-tgf-%C3%AE-1-induced-extracellular-matrix-production-in-nasal-polyp-derived-fibroblasts
#3
Jae-Min Shin, Ji-Young Um, Seoung-Ae Lee, Il-Ho Park, Soo-Hyung Lee, Heung-Man Lee
Purpose Methyl-CpG-binding protein 2 (MeCP2), known as a transcriptional regulator, has been suggested to play an important role in myofibroblast differentiation in the lung. The purpose of this study was to investigate the role of MeCP2 in transforming growth factor (TGF)- β1-induced myofibroblast differentiation and extracellular matrix (ECM) production in nasal polyp-derived fibroblasts (NPDFs). Methods To identify the expression of MeCP2 in nasal polyp tissues, immunohistochemistry staining and Western blot were performed...
January 1, 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29673845/fractional-order-pi-%C3%AE-controller-synthesis-for-steam-turbine-speed-governing-systems
#4
Kai Chen, Rongnian Tang, Chuang Li, Junguo Lu
The current state of the art of fractional order stability theory is hardly to build connection between the time domain analysis and frequency domain synthesis. The existing tuning methodologies for fractional order PIλ Dμ are not always satisfy the given gain crossover frequency and phase margin simultaneously. To overcome the drawbacks in the existing synthesis of fractional order controller, the synthesis of optimal fractional order PIλ controller for higher-order process is proposed. According to the specified phase margin, the corresponding upper boundary of gain crossover frequency and stability surface in parameter space are obtained...
April 16, 2018: ISA Transactions
https://www.readbyqxmd.com/read/29666009/in-vitro-validation-of-a-self-driving-aortic-turbine-venous-assist-device-for-fontan-patients
#5
Kerem Pekkan, Ibrahim Basar Aka, Ece Tutsak, Erhan Ermek, Haldun Balim, Ismail Lazoglu, Riza Turkoz
BACKGROUND: Palliative repair of single ventricle defects involve a series of open-heart surgeries where a single-ventricle (Fontan) circulation is established. As the patient ages, this paradoxical circulation gradually fails, because of its high venous pressure levels. Reversal of the Fontan paradox requires an extra subpulmonic energy that can be provided through mechanical assist devices. The objective of this study was to evaluate the hemodynamic performance of a totally implantable integrated aortic-turbine venous-assist (iATVA) system, which does not need an external drive power and maintains low venous pressure chronically, for the Fontan circulation...
March 11, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29665463/long-term-exposure-to-wind-turbine-noise-at-night-and-risk-for-diabetes-a-nationwide-cohort-study
#6
Aslak Harbo Poulsen, Ole Raaschou-Nielsen, Alfredo Peña, Andrea N Hahmann, Rikke Baastrup Nordsborg, Matthias Ketzel, Jørgen Brandt, Mette Sørensen
Focus on renewable energy sources and reduced unit costs has led to increased number of wind turbines (WTs). WT noise (WTN) is reported to be highly annoying at levels from 30 to 35 dB and up, whereas for traffic noise people report to be highly annoyed from 40 to 45 dB and up. This has raised concerns as to whether WTN may increase risk for major diseases, as exposure to traffic noise has consistently been associated with increased risk of cardiovascular disease and diabetes. We identified all Danish dwellings within a radius of 20 WT heights and 25% of all dwellings within 20-40 WT heights from a WT...
April 14, 2018: Environmental Research
https://www.readbyqxmd.com/read/29662335/vibration-of-carbon-nanotubes-with-defects-order-reduction-methods
#7
Robert B Hudson, Alok Sinha
Order reduction methods are widely used to reduce computational effort when calculating the impact of defects on the vibrational properties of nearly periodic structures in engineering applications, such as a gas-turbine bladed disc. However, despite obvious similarities these techniques have not yet been adapted for use in analysing atomic structures with inevitable defects. Two order reduction techniques, modal domain analysis and modified modal domain analysis, are successfully used in this paper to examine the changes in vibrational frequencies, mode shapes and mode localization caused by defects in carbon nanotubes...
March 2018: Proceedings. Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/29660995/diagnostic-value-of-nasal-cytology-in-chronic-rhinosinusitis-assessed-by-a-liquid-based-cytological-technique
#8
Wenyu She, Jun Yang, Chengshuo Wang, Luo Zhang
Back ground: Nasal cytology has generally been employed as a useful diagnostic tool in the differentiation of rhinopathies. Objective The aim of this study was to assess the extent and diagnostic value of inflammation of nasal and paranasal sinus mucosa in chronic rhinosinusitis patients by employing a combination of nasal brushings and a liquid-based cytological technique. Methods Forty-eight patients with chronic sinusitis and 20 control subjects without any sign of sinusitis undergoing endoscopic surgery, although not all underwent endoscopic sinus surgery, were recruited to the study...
January 1, 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29658053/flow-and-air-conditioning-simulations-of-computer-turbinectomized-nose-models
#9
J Pérez-Mota, F Solorio-Ordaz, J Cervantes-de Gortari
Air conditioning for the human respiratory system is the most important function of the nose. When obstruction occurs in the nasal airway, turbinectomy is used to correct such pathology. However, mucosal atrophy may occur sometime after this surgery when it is overdone. There is not enough information about long-term recovery of nasal air conditioning performance after partial or total surgery. The purpose of this research was to assess if, based on the flow and temperature/humidity characteristics of the air intake to the choana, partial resection of turbinates is better than total resection...
April 16, 2018: Medical & Biological Engineering & Computing
https://www.readbyqxmd.com/read/29656301/septoplasty-for-nasal-obstruction-due-to-a-deviated-nasal-septum-in-adults-a-systematic-review
#10
M M H T van Egmond, M M Rovers, A H J Tillema, N van Heerbeek
BACKGROUND: The status of current evidence for the effectiveness of septoplasty is unclear. This systematic review evaluates the effectiveness of a) septoplasty (with or without concurrent turbinate surgery) versus non-surgical management, and b) septoplasty with concurrent turbinate surgery versus septoplasty alone, for nasal obstruction due to a deviated nasal septum in adults. METHODOLOGY: Eligible for inclusion were randomised controlled trials and non-randomised designs comparing treatment strategies...
April 15, 2018: Rhinology
https://www.readbyqxmd.com/read/29655549/from-hydroelectric-power-to-fontan-assistance-r-evolution-of-the-turbine
#11
EDITORIAL
William M DeCampli
No abstract text is available yet for this article.
March 17, 2018: Journal of Thoracic and Cardiovascular Surgery
https://www.readbyqxmd.com/read/29644907/remodeling-of-the-paradoxical-middle-turbinate-preserving-function-while-gaining-access
#12
Ryan H Belcher, Allison K Ikeda, John M DelGaudio
Background Endoscopic sinus surgery is performed for many reasons, most commonly for chronic rhinosinusitis refractory to medical treatment. A paradoxical middle turbinate is an anatomic variant that can hinder endoscopic access to the sinuses. No publication has addressed how to surgically treat a paradoxical middle turbinate. Method We present a basic endoscopic surgical approach to conservatively resect a paradoxical middle turbinate in order to improve access to the middle meatus and the sinuses while preserving support and function...
March 2018: American Journal of Rhinology & Allergy
https://www.readbyqxmd.com/read/29620550/cerebrodpinal-fluid-leakage-after-turbinate-submucosal-diathermy-an-unusual-complication
#13
Abdulaziz H Abobotain, Abdulrazaq Ajlan, Saad Alsaleh
Submucosal diathermy of the inferior turbinate (SMDIT) is a generally safe procedure to control inferior turbinate hypertrophy. We present a case of a cerebrospinal fluid (CSF) leak at the craniocervical junction after SMDIT done in another institution. A 27-year-old man presented 3 weeks after undergoing SMDIT with signs and symptoms of meningitis and postnasal rhinorrhea. Nasal endoscopy and imaging revealed a nasopharyngeal CSF fistula at the craniocervical junction. Transnasal endoscopic repair and reconstruction was performed with no recurrence on repeat imaging and clinical follow up...
March 2018: Annals of Saudi Medicine
https://www.readbyqxmd.com/read/29617919/combined-nasoseptal-and-inferior-turbinate-flap-for-reconstruction-of-large-skull-base-defect-after-expanded-endonasal-approach-operative-technique
#14
Julien Boetto, Moujahed Labidi, Kentaro Watanabe, Shunya Hanakita, Schahrazed Bouazza, Thibault Passeri, Anne-Laure Bernat, Sebastien Froelich
BACKROUND: Increasing indications for endoscopic endonasal approaches have led neurosurgeons to develop new reconstruction techniques for larger skull base defects. Vascularized grafts have been a great adjunction to reduce the rate of cerebrospinal fluid leak and can also be used to cover exposed critical structures such as the internal carotid artery. The nasoseptal flap and the inferior or middle turbinate flap are thus widely used in endoscopic skull base surgery, but may be insufficient for very large defects...
March 29, 2018: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29616903/sinonasal-ewing-sarcoma-a-case-report-and-literature-review
#15
Jonathan K Lin, Jonathan Liang
INTRODUCTION: Ewing sarcoma (ES) of the sinonasal tract and associated primitive neuroectodermal tumors are rare. To our knowledge, only 10 case reports of sinonasal ES of the nose or paranasal sinuses have been reported. Furthermore, there has been only 1 case of sinonasal ES arising from the middle turbinate. Recommended management of sinonasal ES stems from the management of its osseous counterpart, ES, but treatment with surgery, radiotherapy, and chemotherapy is varied. Five-year survival rates vary from 21% to 70%, with the lower rates representing patients presenting with metastatic disease...
March 7, 2018: Permanente Journal
https://www.readbyqxmd.com/read/29608471/impact-of-nasal-septal-surgery-on-sleep-quality-and-attention-deficit-hyperactivity-disorder
#16
Ildem Deveci, Serap Onder, Mehmet Surmeli, Samil Sahin, Betul Aktas Kipoglu, Burak Karabulut, Basak Caypinar Eser
OBJECTIVE: To evaluate the effect of nasal septal surgery on quality of life. METHODS: A total of 49 patients who underwent septoplasty and/or inferior turbinate radiofrequency operations for nasal septal deviation and inferior turbinate hypertrophy were prospectively enrolled in the study. All patients completed the adult attention-deficit/hyperactivity disorder scale (ADHD scale) and Pittsburgh sleep quality index (PSQI) before and after septoplasty. Acoustic rhinometric measurements were also recorded...
March 30, 2018: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29605601/identification-of-host-cellular-proteins-lage3-and-igfbp6-that-interact-with-orf-virus-protein-orfv024
#17
Mingjian Long, Yuanyuan Wang, Daxiang Chen, Yong Wang, Ruixue Wang, Daoyuan Gong, Haijian He, Daniel L Rock, Wenbo Hao, Shuhong Luo
OBJECTIVE: Orf virus (ORFV) is the pathogen causing contagious pustular dermatitis in goats, sheep and herdsmen. Evidence has confirmed that ORFV can be used as a preventive and therapeutic immunomodulatory agent in several animal models. Our previous data demonstrated that ORFV024 is able to inhibit activation of the NF-κB signaling pathway and act as an important modulator for early immune responses against viral infection. However, the molecular mechanism by which ORFV024 exerting biological function remains unclear...
March 29, 2018: Gene
https://www.readbyqxmd.com/read/29605353/effect-of-early-correction-of-nasal-septal-deformity-in-unilateral-cleft-lip-and-palate-on-inferior-turbinate-hypertrophy-and-nasal-patency
#18
Valentina Pinto, Ottavio Piccin, Luca Burgio, Valeria Summo, Elisa Antoniazzi, Paolo G Morselli
OBJECTIVES: A relatively neglected aspect of cleft lip nasal deformity is the effect of septal deviation and inferior turbinate hypertrophy (ITH) on the functional airway. In particular, ITH in the noncleft side can be especially problematic, because it reduces the healthy nasal area, creating bilateral nasal obstruction that might affect the growth of the maxillofacial skeleton. Although these anatomic and functional changes are documented, few recommendations have been developed regarding the proper approach to ITH...
May 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29604721/low-frequency-outdoor-indoor-noise-level-difference-for-wind-turbine-assessment
#19
Pontus Thorsson, Kerstin Persson Waye, Michael Smith, Mikael Ögren, Eja Pedersen, Jens Forssén
To increase the understanding of wind turbine noise on sleep, human physiological reactions need to be studied in a controlled laboratory setting. The paper presents an outdoor-indoor noise level difference as a function of frequency, applicable to creating wind turbine indoor sounds with the outdoor sounds as input. For this, a combination of measurement data and modeling results has been used. The suggested data are provided in a table.
March 2018: Journal of the Acoustical Society of America
https://www.readbyqxmd.com/read/29602963/evaluation-of-superior-concha-bullosa-by-computed-tomography
#20
Kadri İla, Nihat Yilmaz, Serkan Öner, Efser Başaran, Zülal Öner
OBJECTIVE: Concha bullosa is generally regarded as pneumatisation of the middle turbinate in the nose. However, pneumatisation may also be seen in the superior and inferior turbinate. Computed tomography (CT) of paranasal sinuses is extremely helpful for the examination of this inaccessible area. Coronal CT sections of paranasal sinuses are particularly useful for surgical anatomy, as these images show nearly the same regions as the endoscopic examinations. The aim of this retrospective study was to evaluate the presence, incidence and unilaterality-bilaterality of superior turbinate pneumatisation and concomitant nasal pathologies...
March 30, 2018: Surgical and Radiologic Anatomy: SRA
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