Read by QxMD icon Read


Xinsheng Lin, Xiayan Zhuang, Chuangwei Li, Xin Wang
The aim of the present study was to investigate the functional status of dendritic cells (DCs) in nasal polyps (NP) and their interactions with T lymphocytes. The interactions between DC and T lymphocytes in the pathogenesis of NP was also studied. The expression of cluster of differentiation (CD)1a and CD83 in NP was detected using immunohistochemistry and the ratio of CD83 DC/CD1a+DC was counted. The distribution of DCs in NP and normal inferior turbinate mucosa (nITM) was evaluated using double immunostaining (CD1a/CD40) and low illumination fluorescence microscopy...
June 2018: Experimental and Therapeutic Medicine
Alejandro Silva, Alejandro Zarzo, Juan M Munoz-Guijosa, Francesco Miniello
A common fault in turbomachinery is rotor⁻casing rub. Shaft vibration, measured with proximity probes, is the most powerful indicator of rotor⁻stator rub. However, in machines such as aeroderivative turbines, with increasing industrial relevance in power generation, constructive reasons prevent the use of those sensors, being only acceleration signals at selected casing locations available. This implies several shortcomings in the characterization of the machinery condition, associated with a lower information content about the machine dynamics...
June 13, 2018: Sensors
Toby O Steele, Amarbir Gill, Travis T Tollefson
PURPOSE OF REVIEW: Characterize indications, perioperative considerations, clinical outcomes and complications for concurrent endoscopic sinus surgery (ESS) and rhinoplasty. RECENT FINDINGS: Chronic rhinosinusitis and septal deviation with or without inferior turbinate hypertrophy independently impair patient-reported quality of life. Guidelines implore surgeons to include endoscopy to accurately evaluate patient symptoms. Complication rates parallel those of either surgery (ESS and rhinoplasty) alone and are not increased when performed concurrently...
June 11, 2018: Current Opinion in Otolaryngology & Head and Neck Surgery
Seyed Hossein Mamanpush, Azadeh Tavousi Tabatabaei, Hui Li, Karl Englund
Wind turbine blades that face end-of-life recycled mechanically. The recycled material was first comminuted via a hammer-mill through a range of varying screen sizes, resonated (polymeric Methylene diphenyl isocyanate (pMDI)) and then hand-formed and hot pressed. The hot press temperature and time were set as 138 °C and 5 min accordingly, typical for pMDI composite processing. Mechanical properties (Modulus of rupture (MOR), Module of elasticity (MOE) and Internal bond(IB)) dataset of composites made from recycled wind turbine blades(rWTBs) presented...
August 2018: Data in Brief
Josep Rubio-Palau, Alejandra Prieto-Gundin, Leydi Mar de Abreu Graterol, Herman Vercruysse
Congenital maxillomandibular fusion or syngnathia is a rare craniofacial disorder with only 26 cases reported in the literature. We present a case of a congenital complex zygomatico-mandibular syngnathia associated with a palatal cleft, posterior maxilla and turbinate agenesia, mild hemifacial microsomia, and a disordered dental eruption. The patient has the highest age (15 years) at diagnosis described in the literature. 3D planning of the surgery was performed to study the patient's anatomy and design the necessary osteotomies to separate the jaws...
June 2018: Craniomaxillofacial Trauma & Reconstruction
Aykut Bozan, Hüseyin Naim Eriş, Denizhan Dizdar, Sercan Göde, Bahar Taşdelen, Hayrettin Cengiz Alpay
INTRODUCTION: The most common cause of septoplasty failure is inferior turbinate hypertrophy that is not treated properly. Several techniques have been described to date: total or partial turbinectomy, submucosal resection (surgical or with a microdebrider), with turbinate outfracture being some of those. OBJECTIVE: In this study, we compared the pre- and postoperative lower turbinate volumes using computed tomography in patients who had undergone septoplasty and compensatory lower turbinate turbinoplasty with those treated with outfracture and bipolar cauterization...
May 18, 2018: Brazilian Journal of Otorhinolaryngology
R Jankowski, C Rumeau, D T Nguyen, P Gallet
Nasalisation is a surgical technique proposed for the treatment of nasal polyposis in 1995. The technique as initially described was based on large opening of the maxillary, sphenoidal and frontal ostia and resection of the middle turbinates, with the aim of resecting the mucosa of the lateral masses of the ethmoid as completely and safely as possible. Recent findings on the evolution and development of the nose and sinuses and sinus physiology allow both the concept and the technique of nasalisation to be updated...
June 7, 2018: European Annals of Otorhinolaryngology, Head and Neck Diseases
J Lossent, M Lejart, T Folegot, D Clorennec, L Di Iorio, C Gervaise
Marine renewable energy development raised concerns over the impact of underwater noise. Here we assess the acoustic impacts of an operating tidal current turbine (Paimpol-Bréhat site, France) on marine fauna. Its source level (SL) has been measured in situ using 19 drifting transects at distances between 100 m to 2400 m from the turbine. SL ranged from 118 to 152 dB re1 μPa@1 m in third-octave bands at frequencies between 40 and 8192 Hz. It is comparable to the SL of a 19 m boat travelling at 10kt speed...
June 2018: Marine Pollution Bulletin
Michael Koennecke, Frederick Benecke, Anja Masche, Robert Linke, Karl-Ludwig Bruchhage, Ralph Pries, Ludger Klimek, Barbara Wollenberg
INTRODUCTION: Chronic rhinosinusitis with nasal polyps (CRSwNP) is a significant health problem, but the pathogenesis remains unclear to date. Nitric oxide (NO) has known airway modulating functions. Therefore, we investigated nitric oxide production to determine the role of eNOS in nasal polyps, with additional analysis of the effect of the monoterpene oxide 1,8-cineol on the possible regulation of eNOS signaling and thus NO production. METHODS: We determined eNOS expression, as well as regulatory and effector proteins like NOSTRIN and CASP8, using whole genome microarray, immunohistochemistry and western blot...
June 6, 2018: Nitric Oxide: Biology and Chemistry
Patricia Duchamp-Viret, Michel Chaput
In vivo recordings of single olfactory receptor neurons and electro-olfactograms (EOG, field potentials from the olfactory mucosa) provide insights into the olfactory processing properties of the olfactory peripheral stage. Because the olfactory receptor neurons are very small electrical generators, it is not easy to unitarily record them in amphibians, reptilians, and fishes. In mammals such recordings are even more difficult to obtain: primarily due to the anatomical configuration in complex turbinates of the olfactory mucosa and its propensity to hemorrhage during surgery; secondarily due to the fact that olfactory receptor neurons are held in closely packed clusters in the olfactory mucosa and are difficult to isolate, from the electrophysiological recording point of view...
2018: Methods in Molecular Biology
Chunbo Zhang
The olfactory epithelium is an extremely functionally diversified organ. Scattered distribution of over 1000 different types of olfactory sensory neurons (OSNs) and concha structures of mouse olfactory turbinates have greatly increased technical difficulties in research and limited applicability of certain methods. We have developed a method to monitor intracellular calcium transients of individual OSNs from intact olfactory turbinates. With this method, it becomes feasible to locate OSNs of the same specificity from preparation to preparation based on anatomical landmarks of olfactory turbinates, zonal distribution patterns of OSNs, and neuronal response characteristics...
2018: Methods in Molecular Biology
Christopher R Roxbury, Dennis Tang, Janki Shah, Jennifer McBride, Troy D Woodard, Raj Sindwani
BACKGROUND: The endoscopic modified Lothrop procedure (EMLP) is commonly performed in recalcitrant frontal sinusitis, in part to achieve better penetration of medicated irrigations postoperatively. Although EMLP requires a septectomy for exposure, it is unknown whether septectomy size affects delivery of irrigations. In this study we evaluated the role of septectomy in delivery of irrigations to the EMLP cavity. METHODS: EMLP was performed on fresh human cadavers with sequentially increasing septectomy (minimal septectomy: drilling across septum to combine frontal sinuses; standard septectomy: 1...
June 8, 2018: International Forum of Allergy & Rhinology
Matti Penttilä
BACKGROUND: The ostiomeatal complex (OMC), comprising a small natural maxillary sinus ostium and narrow infundibulum, transmits the air diffusion into the antrum and mucociliary transport from the antrum, and is considered a key area in chronic rhinosinusitis (CRS). Thin membranous anterior and posterior fontanelle areas below the OMC can rupture forming a perforation, accessory maxillary ostium (AMO), that increases antral airflow changing the anatomy and function of the sinus. The purpose of this study was to report the first case series of CRS patients who had undergone repair of fontanelle defects aiming to reconstruct normal structures...
June 8, 2018: International Forum of Allergy & Rhinology
Sung Hyun Lee, Youngdeuk Kim, Tae Young Lim
Background When intranasal contact points are the cause of headache and facial pain, opinions regarding whether to remove intranasal contact points when they are believed to be the cause of headache and facial pain are divided. Clinical Presentation A 46-year-old woman visited the authors' pain clinic with complaints of right nasal pain accompanied by frontotemporal headache. She first met an Otorhinolaryngologist and a neurologist. Based on nasal endoscopy and pain pattern, they presumed that her pain was a nasal mucosal headache rather than migraine...
June 8, 2018: Cranio: the Journal of Craniomandibular Practice
Gal Shekel, Chen Barad, Hagay Hayun, Yatir Sadia, Yaniv Gelbstein
Zirconia (ZrO2) and yttria-stabilized-zirconia (YSZ) are known as advanced oxides, widely applied in gas-turbine engines, fuel cells and other applications, requiring controlled thermal conductivity values. In the current research hot-pressed ZrO2-8YSZ composites, were synthesized. The effect of the three apparent phases, 8YSZ, ZrO2 and the pores on the thermal conductivity was analyzed using the general effective media (GEM) approach, while considering their relative amounts and morphology.
June 7, 2018: Physical Chemistry Chemical Physics: PCCP
Joshua O Okeniyi, Aderemi A Atayero, Segun I Popoola, Elizabeth T Okeniyi, Gbenga M Alalade
This data article presents comparisons of energy generation costs from gas-fired turbine and diesel-powered systems of distributed generation type of electrical energy in Covenant University, Ota, Nigeria, a smart university campus driven by Information and Communication Technologies (ICT). Cumulative monthly data of the energy generation costs, for consumption in the institution, from the two modes electric power, which was produced at locations closed to the community consuming the energy, were recorded for the period spanning January to December 2017...
April 2018: Data in Brief
Ann Helen Nilsen, Wenche Moe Thorstensen, Anne-Sofie Helvik, Staale Nordgaard, Vegard Bugten
PURPOSE: Septoplasty and radiofrequency therapy for inferior turbinate hypertrophy (RFIT) are common techniques used to improve nasal patency. Our aim was to compare nasal geometry and function using acoustic rhinometry and peak nasal inspiratory flow (PNIF) in three patients groups undergoing surgery for nasal obstruction, and to investigate if the improvement in minimal cross-sectional area (MCA) and nasal-cavity volume (NCV) occurred in different cavity areas in the groups. Finally, we evaluated the correlation between the objective measurements and the patients' assessment of nasal obstruction (SNO)...
June 5, 2018: European Archives of Oto-rhino-laryngology
Hazem M Negm, Harminder Singh, Sivashanmugam Dhandapani, Salomon Cohen, Vijay K Anand, Theodore H Schwartz
Objectives  The use of nasopharyngeal landmarks to localize the petrous apex has not been previously described. We describe a purely endoscopic endonasal corridor to localize the petrous apex without transgressing any of the paranasal sinuses. Methods  Anatomical dissections of four formalin preserved cadaveric heads (eight petrous apices) were performed to evaluate the feasibility of a nonsinus-based approach and illustrate the surgical landmarks and measurements that are useful for surgery in this area...
April 2018: Journal of Neurological Surgery. Part B, Skull Base
Laurel R Yohe, Simone Hoffmann, Abigail Curtis
The degree to which molecular and morphological loss of function occurs synchronously during the vestigialization of traits is not well understood. The mammalian vomeronasal system, a sense critical for mediating many social and reproductive behaviors, is highly conserved across mammals. New World Leaf-nosed bats (Phyllostomidae) are under strong selection to maintain a functional vomeronasal system such that most phyllostomids possess a distinct vomeronasal organ and an intact TRPC2, a gene encoding a protein primarily involved in vomeronasal sensory neuron signal transduction...
2018: Frontiers in Neuroanatomy
Sung-Hwan Shin, SangRyul Kim, Yun-Ho Seo
Regular inspection for the maintenance of the wind turbines is difficult because of their remote locations. For this reason, condition monitoring systems (CMSs) are typically installed to monitor their health condition. The purpose of this study is to propose a fault detection algorithm for the mechanical parts of the wind turbine. To this end, long-term vibration data were collected over two years by a CMS installed on a 3 MW wind turbine. The vibration distribution at a specific rotating speed of main shaft is approximated by the Weibull distribution and its cumulative distribution function is utilized for determining the threshold levels that indicate impending failure of mechanical parts...
June 2, 2018: Sensors
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"