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https://www.readbyqxmd.com/read/29470452/who-environmental-noise-guidelines-for-the-european-region-a-systematic-review-on-environmental-noise-and-cardiovascular-and-metabolic-effects-a-summary
#1
REVIEW
Elise van Kempen, Maribel Casas, Göran Pershagen, Maria Foraster
To update the current state of evidence and assess its quality, we conducted a systematic review on the effects of environmental noise exposure on the cardio-metabolic systems as input for the new WHO environmental noise guidelines for the European Region. We identified 600 references relating to studies on effects of noise from road, rail and air traffic, and wind turbines on the cardio-metabolic system, published between January 2000 and August 2015. Only 61 studies, investigating different end points, included information enabling estimation of exposure response relationships...
February 22, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29466433/novel-optimization-technique-of-isolated-microgrid-with-hydrogen-energy-storage
#2
Eman Hassan Beshr, Hazem Abdelghany, Mahmoud Eteiba
This paper presents a novel optimization technique for energy management studies of an isolated microgrid. The system is supplied by various Distributed Energy Resources (DERs), Diesel Generator (DG), a Wind Turbine Generator (WTG), Photovoltaic (PV) arrays and supported by fuel cell/electrolyzer Hydrogen storage system for short term storage. Multi-objective optimization is used through non-dominated sorting genetic algorithm to suit the load requirements under the given constraints. A novel multi-objective flower pollination algorithm is utilized to check the results...
2018: PloS One
https://www.readbyqxmd.com/read/29460237/a-comparison-of-the-impacts-of-wind-energy-and-unconventional-gas-development-on-land-use-and-ecosystem-services-an-example-from-the-anadarko-basin-of-oklahoma-usa
#3
Kendall M Davis, Michael N Nguyen, Maureen R McClung, Matthew D Moran
The United States energy industry is transforming with the rapid development of alternative energy sources and technological advancements in fossil fuels. Two major changes include the growth of wind turbines and unconventional oil and gas. We measured land-use impacts and associated ecosystem services costs of unconventional gas and wind energy development within the Anadarko Basin of the Oklahoma Woodford Shale, an area that has experienced large increases in both energy sectors. Unconventional gas wells developed three times as much land compared to wind turbines (on a per unit basis), resulting in higher ecosystem services costs for gas...
February 19, 2018: Environmental Management
https://www.readbyqxmd.com/read/29459270/sparse-representation-for-lamb-wave-based-damage-detection-using-a-dictionary-algorithm
#4
Wentao Wang, Yuequan Bao, Wensong Zhou, Hui Li
Lamb waves are being investigated extensively for structural health monitoring (SHM) because of their characteristics of traveling long distances with little attenuation and sensitivity to minor local damage in structures. However, Lamb waves are dispersive, which results in the complex overlap of waveforms in the damage detection applications of the SHM community. This paper proposes a sparse representation strategy based on an l1 -norm optimization algorithm for guided-Lamb-wave-based inspections. A comprehensive dictionary is designed containing various waveforms under diverse conditions so that the received waveform can be decomposed into a spatial domain for the identification of damage location...
February 10, 2018: Ultrasonics
https://www.readbyqxmd.com/read/29453801/regional-deposition-of-nasal-sprays-in-adults-a-wide-ranging-computational-study
#5
Milad Kiaee, Herbert Wachtel, Michelle L Noga, Andrew R Martin, Warren H Finlay
The present work examines regional deposition within the nose for nasal sprays over a large and wide ranging parameter space by using numerical simulation. A set of seven realistic adult nasal airway geometries was defined based on Computed Tomography (CT) images. Deposition in six regions of each nasal airway geometry (the vestibule, valve, anterior turbinate, posterior turbinate, olfactory, and nasopharynx) was determined for varying particle diameter, spray cone angle, spray release direction, particle injection speed, and particle injection location...
February 17, 2018: International Journal for Numerical Methods in Biomedical Engineering
https://www.readbyqxmd.com/read/29450381/insights-in-the-treatment-of-congenital-nasolacrimal-duct-obstruction
#6
REVIEW
Elena Avram
Introduction: Congenital nasolacrimal duct obstruction is one of the most common causes of epiphora in newborns and the main cause of this condition is the persistence of Hasner membrane. Several treatment options are available, like conservative treatment, probing, irrigation, or more complex techniques. Objective: The objective of this paper is to discuss the efficiency of different treatment options addressing congenital nasolacrimal duct obstruction based on trials reported in literature. Methods: Clinical trials were identified on PubMed...
April 2017: Romanian Journal of Ophthalmology
https://www.readbyqxmd.com/read/29447897/pattern-of-allergic-rhinitis-among-children-in-ekiti-nigeria
#7
Waheed Atilade Adegbiji, Gabriel Toye Olajide, Anthony Oyebanji Olajuyin, Shuaib Kayode Aremu, Akanbi Ganiyu Olusola
BACKGROUND: Allergic rhinitis is a chronic and recurrent nasal condition. It is often neglected in children with late presentation. This study aimed at determining the prevalence, sociodemographic features, comorbid illnesses, complications and quality of life in children with allergic rhinitis in the study institution. MATERIALS AND METHODS: This is a prospective hospital based study of children with allergic rhinitis in Ekiti state university teaching hospital, Ado Ekiti...
March 2018: International Journal of Pediatric Otorhinolaryngology
https://www.readbyqxmd.com/read/29446869/dimensions-of-the-medial-wall-of-the-prelacrimal-recess
#8
Khaled Kashlan, John Craig
BACKGROUND: Addressing anterior maxillary sinus pathology endoscopically that is inaccessible with an endoscopic modified medial maxillectomy requires either a prelacrimal approach (PLA) or an endoscopic Denker's approach (EDA). The PLA involves removing the medial wall of the prelacrimal recess (PLR), which is the bone between the pyriform aperture (PA) and nasolacrimal duct (NLD), from nasal floor to orbital floor. The PLA preserves the inferior turbinate and NLD, whereas both are sacrificed during an EDA...
February 15, 2018: International Forum of Allergy & Rhinology
https://www.readbyqxmd.com/read/29445616/first-case-report-of-enzootic-nasal-adenocarcinoma-in-ouled-djellal-ewe-in-algeria
#9
Nassim Sid, Nour El Houda Belalmi, Louiza Benhamza, Soraya Ouhida, Mohammed Ezine Zebiri, Ahmet Aydoğan, Caroline Leroux
We report clinical and pathological features of enzootic nasal adenocarcinoma (ENA) in one sheep in Algeria. A one-year-old Ouled Djellal sheep from a large herd (~1240 animals), located in Bordj Bou Arreridj, Algeria, was clinically diagnosed by the presence of persistent seromucous nasal discharge, head shaking, muzzle licking, dyspnoea, exophthalmia and frontal protrusion. The sheep was euthanized, and the necropsy was performed. Gross examination showed soft touch, pinkish-white tumour masses in the nasal cavities with distortion of the turbinates and of the medium septum...
2018: Open Veterinary Journal
https://www.readbyqxmd.com/read/29443104/absorption-of-nasal-and-bronchial-fluids-precision-sampling-of-the-human-respiratory-mucosa-and-laboratory-processing-of-samples
#10
Ryan S Thwaites, Hannah C Jarvis, Nehmat Singh, Akhilesh Jha, Andy Pritchard, Hailing Fan, Tanushree Tunstall, Joan Nanan, Simon Nadel, Onn Min Kon, Peter J Openshaw, Trevor T Hansel
The methods of nasal absorption (NA) and bronchial absorption (BA) use synthetic absorptive matrices (SAM) to absorb the mucosal lining fluid (MLF) of the human respiratory tract. NA is a non-invasive technique which absorbs fluid from the inferior turbinate, and causes minimal discomfort. NA has yielded reproducible results with the ability to frequently repeat sampling of the upper airway. By comparison, alternative methods of sampling the respiratory mucosa, such as nasopharyngeal aspiration (NPA) and conventional swabbing, are more invasive and may result in greater data variability...
January 21, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29439408/flow-control-in-wells-turbines-for-harnessing-maximum-wave-power
#11
Jon Lekube, Aitor J Garrido, Izaskun Garrido, Erlantz Otaola, Javier Maseda
Oceans, and particularly waves, offer a huge potential for energy harnessing all over the world. Nevertheless, the performance of current energy converters does not yet allow us to use the wave energy efficiently. However, new control techniques can improve the efficiency of energy converters. In this sense, the plant sensors play a key role within the control scheme, as necessary tools for parameter measuring and monitoring that are then used as control input variables to the feedback loop. Therefore, the aim of this work is to manage the rotational speed control loop in order to optimize the output power...
February 10, 2018: Sensors
https://www.readbyqxmd.com/read/29434514/lightweight-steel-tidal-power-barrages-with-minimal-environmental-impact-application-to-the-severn-barrage
#12
R C T Rainey
For tidal power barrages, a breast-shot water wheel, with a hydraulic transmission, has significant advantages over a conventional Kaplan turbine. It is better suited to combined operations with pumping that maintain the tidal range upstream of the barrage (important in reducing the environmental impact), and is much less harmful to fish. It also does not require tapered entry and exit ducts, making the barrage much smaller and lighter, so that it can conveniently be built in steel. For the case of the Severn Estuary, UK, it is shown that a barrage at Porlock would generate an annual average power of 4 GW (i...
January 2018: Proceedings. Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/29432140/noise-exposure-from-high-flow-nasal-cannula-oxygen-therapy-a-bench-study-on-noise-reduction
#13
Takamitsu Kubo, Hiroaki Nakajima, Ryo Shimoda, Tatsuya Seo, Yurie Kanno, Toshikazu Kondo, Sunao Tamai
BACKGROUND: High-flow nasal cannula (HFNC) oxygen therapy produces noise at a level such that patients often complain. However, the noise level has not been measured digitally. METHODS: We evaluated 3 types of HFNCs without filters and 2 types with filters attached for noise reduction. Optiflow (with and without a filter), MaxVenturi (with and without a filter) and AIRVO2 (without a filter only) were positioned at the center of a hospital room. We measured the noise levels at the distance of 1 m from the equipment at various total flows (30, 40, 50, 60 L/min) and F IO 2 (0...
February 6, 2018: Respiratory Care
https://www.readbyqxmd.com/read/29427876/a-comparative-study-of-biomass-integrated-gasification-combined-cycle-power-systems-performance-analysis
#14
Guiyan Zang, Sharma Tejasvi, Albert Ratner, Electo Silva Lora
The Biomass Integrated Gasification Combined Cycle (BIGCC) power system is believed to potentially be a highly efficient way to utilize biomass to generate power. However, there is no comparative study of BIGCC systems that examines all the latest improvements for gasification agents, gas turbine combustion methods, and CO2 Capture and Storage options. This study examines the impact of recent advancements on BIGCC performance through exergy analysis using Aspen Plus. Results show that the exergy efficiency of these systems is ranged from 22...
February 2, 2018: Bioresource Technology
https://www.readbyqxmd.com/read/29426784/breaking-paradigms-in-severe-epistaxis-the-importance-of-looking-for-the-s-point
#15
Eduardo Macoto Kosugi, Leonardo Balsalobre, João Mangussi Gomes, Miguel Soares Tepedino, Daniel Marcus San da Silva, Erika Mucciolo Cabernite, Diego Hermann, Aldo Cassol Stamm
INTRODUCTION: Since the introduction of nasal endoscopy into the field of Otorhinolaryngology, the treatment paradigm for cases of severe epistaxis has shifted toward early and precise identification of the bleeding site. Although severe epistaxis is usually considered to arise from posterior bleeding, an arterial vascular pedicle in the superior portion of the nasal septum, around the axilla projection of the middle turbinate, posterior to the septal body, frequently has been observed...
January 20, 2018: Brazilian Journal of Otorhinolaryngology
https://www.readbyqxmd.com/read/29426044/dysbiosis-of-inferior-turbinate-microbiota-is-associated-with-high-total-ige-levels-in-allergic-rhinitis-patients
#16
Dong-Wook Hyun, Hyun Jin Min, Min-Soo Kim, Tae Woong Whon, Na-Ri Shin, Pil Soo Kim, Hyun Sik Kim, June Young Lee, Woorim Kang, Augustine M K Choi, Joo-Heon Yoon, Jin-Woo Bae
Abnormalities in the human microbiota are associated with the etiology of allergic diseases. Although disease site-specific microbiota may be associated with disease pathophysiology, the role of the nasal microbiota is unclear. We sought to characterize the microbiota of the site of allergic rhinitis, inferior turbinate, in subjects with allergic rhinitis (n=20) and healthy controls (n=12), and to examine the relationship of mucosal microbiota with disease occurrence, sensitized allergen number, allergen-specific- and total-IgE levels...
February 5, 2018: Infection and Immunity
https://www.readbyqxmd.com/read/29423144/nasal-hemangiopericytoma-successfully-treated-with-a-combination-of-ril-2-and-extranasal-approaches
#17
Tohru Tanigawa, Hirokazu Tanaka, Fumiya Kano, Hiromi Ueda, Shigeru Inafuku
Hemangiopericytomas (HPCs) are uncommon vascular tumors originating from extracapillary cells called pericytes, and rarely occur in the nose or paranasal sinuses. We treated a 57-year-old man with nasal HPC who presented with nasal obstruction and hemorrhage. Nasal endoscopy showed a readily bleeding mass between the right nasal septum and inferior turbinate. Enhanced CT revealed a heterogeneous mass lesion with an enhancement effect that filled the right nasal cavity. A biopsy specimen was proved to exhibit a HPC histopathology...
October 2017: Journal of Surgical Case Reports
https://www.readbyqxmd.com/read/29422774/a-comparison-of-symptoms-and-quality-of-life-before-and-after-nasal-septoplasty-and-radiofrequency-therapy-of-the-inferior-turbinate
#18
Ann Helen Nilsen, Anne-Sofie Helvik, Wenche Moe Thorstensen, Vegard Bugten
Background: The primary goal of this study is to compare pre- and postoperative symptoms and health related quality of life (HQOL) in 57 patients who underwent septoplasty (group-1), 56 patients who underwent septoplasty combined with radiofrequency therapy of inferior turbinates (RFIT) (group-2) and 58 patients who underwent RFIT alone (group-3). The secondary goal is to investigate if the change in symptoms and HQOL differed between these three patient groups after surgery. Methods: All patients reported symptoms on a visual analogue scale (VAS) and HQOL on Sino-Nasal-Outcome-Test-20 (SNOT-20) and Short-Form-Health-Survey-36 (SF-36) before and 6 months after surgery...
2018: BMC Ear, Nose, and Throat Disorders
https://www.readbyqxmd.com/read/29417277/radiological-comparison-of-inferior-turbinate-hypertrophy-between-allergic-and-non-allergic-rhinitis-does-allergy-really-augment-turbinate-hypertrophy
#19
Salma Saud Al Sharhan, Eun Jung Lee, Chi Sang Hwang, Jae Sung Nam, Joo-Heon Yoon, Chang-Hoon Kim, Hyung-Ju Cho
BACKGROUND: Inferior turbinate hypertrophy could be a result of allergic rhinitis (AR) that leads to nasal congestion and nasal airway obstruction, which is the most bothersome complaint in patients with AR. However, evidence regarding whether patients with AR have a more hypertrophied inferior turbinate than do patients with non-AR is lacking. OBJECTIVE: We aimed to evaluate the degree of inferior turbinate hypertrophy according to the presence of AR using radiological measurements of the inferior turbinate...
February 7, 2018: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29414499/antrochoanal-polyp-concomitant-with-turbinoethmoidal-osteoma-a-case-report
#20
Yong Won Lee, Yong Min Kim
INTRODUCTION: Antrochoanal polyps (ACPs) have several unique features that distinguish them from other nasal polyps. Despite many investigations, the pathogenesis of ACP has not yet been elucidated. Sinonasal osteoma is the most common type of tumor of the sinonasal tract and can be caused by trauma, infection and developmental anomaly. PRESENTATION OF CASE: We report the case of a 35-year-old man with left nasal obstruction for more than 20 years. Examination revealed ACP concomitant with an osteoma that arose from the middle turbinate and ethmoid sinus...
January 28, 2018: International Journal of Surgery Case Reports
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