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Search results for: DMI
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Tinnitus in COVID-19 Pandemic
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Ultrastructural alterations of the tympanic membrane in retraction pockets from patients with chronic otitis media
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Metastasis of the testicular germ cell tumors to the parotid gland
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In Reference to Voice, Swallow and Airway Outcomes Following Tracheostomy for COVID-19
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Should patients with sudden deafness be tested for COVID19?
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Palatine tonsil adenoid cystic carcinoma
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First bite syndrome after parotidectomy: a single-centre experience
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Can the SARS-CoV-2 virus damage human hearing and balance?
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Shared Decision-making and Stakeholder Engagement in COVID-19 Tracheostomy
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Kikuchi-Fujimoto disease: State of the art
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Does Treatment of Sudden Sensorineural Hearing Loss in Patients With COVID-19 Require Anticoagulants?
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Regarding “Cranial nerve involvement in COVID-19”
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Mitigation effect of face shield to reduce SARS-CoV-2 airborne transmission risk: Preliminary simulations based on computed tomography
PublicationWe aimed to develop a model to quantitatively assess the potential effectiveness of face shield (visor) in reducing airborne transmission risk of the novel coronavirus SARS-CoV-2 during the current COVID-19 pandemic using the computational fluid dynamics (CFD) method. The studies with and without face shield in both an infected and healthy person have been considered in indoor environment simulation. In addition to the influence...
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Investigations of Malfunctions of the Vestibular System
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Intralabyrinthine Hemorrhage in A Patient With COVID-19 – A Challenge For An Otologist
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Regarding “Accuracy, predictability and prognostic implications of fine‐needle aspiration biopsy for parotid gland tumours: A retrospective case series”
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Regarding the “The spiral ladder technique of facial nerve trunk identification during parotidectomy: A convenient roadmap for the beginners”
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Can we avoid intracranial complications of chronic otitis media?
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Quality Improvement of Wear-Resistant Coatings in Plasma Spraying Integrated with High-Energy Heating by High Frequency Currents
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Rare pain syndromes of the head and neck
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Regarding the “Tumour spillage of the pleomorphic adenoma of the parotid gland: A proposal for intraoperative measures”
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Regarding the concurrent presence of secretory carcinoma and Warthin’s tumor in the ipsilateral parotid gland
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Regarding the “Minor Parotidectomy Complications: A Systematic Review”
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The role of fine‑needle aspiration biopsy (FNAB) in the diagnostic management of parotid gland masses with emphasis on potential pitfalls
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The first bite syndrome after parotidectomy
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Novel Family of modified qZS buck-boost multilevel inverters with reduced switch count
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Cardinal regenerative features of the MRL mouse
PublicationIn this review, we discuss recent studies relating to major features of adult MRL mouse biology that contribute to the regenerative responses seen. These include an increased inflammatory cell profile, a unique glycolytic metabolic state typically found during embryogenesis, and a cell cycle phenotype of DNA damage and G2/M arrest. These traits have been found in other mammalian and non-mammalian regenerative systems. How these...
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Cost-Effective Piggyback Forward dc-dc Converter
PublicationThe novel piggyback dc-dc converter as a cost-effective solution is presented in this work. It provides a wide input voltage range of regulation with a low component count. The novel solution is an advanced forward dc-dc converter with an additional clamp output capacitor. The idea of such a type of converter is to transfer magnetizing energy of transformer to the output side, instead of using input clamp circuit. The design guidelines...
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Concept of Wireless Low-Voltage DC Socket for the Residential House Application
PublicationThe proposed research is devoted to the comprehensive theoretical and experimental study of the concept of the wireless low power dc socket for residential applications. The main goal of this work is to provide safe dc source for residential customers at power level which is enough in order to supply all typical appliances without power factor correctors. Such types of devices can be already connected to the dc grid and decoupled...
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Analytical comparison between capacitor assisted and diode assisted cascaded quasi-z-source inverters
PublicationQuasi-Z falownik z prostym obwodem impedancyjnym jest bardzo interesującym rozwiązaniem topologicznym ze względu na unikalną możliwość jednostopniowego przekształcanie DC/AC w połączeniu z funkcjami obniżania i podwyższania napięcia. W niektórych aplikacjach jego właściwości podwyższające są jednak niewystarczające. Wyższe napięcie wejściowe można uzyskać w wyniku zastosowania w quasi-Z-falownikach kaskadowych obwodów impedancyjnych....
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Wireless Charging Station Design for Electric Scooters: Case Study Analysis
PublicationThis study proposes an example of a wireless charging station design for a small-scale vehicle available on the market. The article analyzes basic transmitter inverter topologies and their compensation methods in terms of flexibility of control, tolerance to uncertainty in positioning, and the possibility of decreasing the integration price. Our comprehensive analysis focuses on the battery voltage range, energy capacity, cost,...
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Novel Family of Single-Phase Modified Impedance-Source Buck-Boost Multilevel Inverters With Reduced Switch Count
Publicationhis paper describes novel single-phase solutions with increased inverter voltage levels derived by means of a nonstandard inverter configuration and impedance source networks. Operation principles based on special modulation techniques are presented. Detailed component design guidelines along with simulation and experimental verification are also provided. Possible application fields are discussed, as well as advantages and disadvantages....
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Determination of the rigidity and deformation energy of the technological machine load-carrying systems
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t-SNE Highlights Phylogenetic and Temporal Patterns of SARS-CoV-2 Spike and Nucleocapsid Protein Evolution
PublicationWe propose applying t-distributed stochastic neighbor embedding to protein sequences of SARS-CoV-2 to construct, visualize and study the evolutionary space of the coronavirus. The basic idea is to explore the COVID-19 evolution space by using modern manifold learning techniques applied to evolutionary distances between variants. Evolutionary distances have been calculated based on the structures of the nucleocapsid and spike proteins.
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Assessment of the impact of bacteria Pseudomonas denitrificans, Pseudomonas fluorescens, Bacillus subtilis and yeast Yarrowia lipolytica on commercial poly(ether urethanes)
PublicationThe assessment of the impact of the bacteria Pseudomonas denitrificans, Pseudomonas fluorescens, Bacillus subtilis and yeast Yarrowia lipolytica on commercial poly(ether urethanes) Tecoflex® and Tecothane® is presented. The polyurethane samples were incubated with pure cultures of the microorganisms at 30 °C for five months. The changes in the chemical structure of the polymers were evaluated using loss of weight and contact angle...
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Chemical Composition and Antimicrobial Activity of Selected Essential Oils against Staphylococcus spp. Isolated from Human Semen
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Maxillary sinus aeration analysis using computational fluid dynamics
PublicationThe maxillary sinus aeration using the computational fluid dynamics (CFD) method based on individual adult patients’ computed tomography (CT) scans were analyzed. The analysis was based on CT images of 4 patients: one with normal nose anatomy and three with nasal septal deviation (NSD) and concha bullosa (CB). The CFD simulation was performed using the Reynolds-Average Simulation approach and turbulence closure based on linear...
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Regarding to “Minimaly invasive benign parotid surgery in selected patients: An adaptation example to compensate for COVID19 backlog or new era?”
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Management of tracheostomy in COVID-19 patients: The Japanese experience
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Nietypowy obraz choroby Madelunga z zajęciem krtani: opis przypadku
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Is the Keros classification alone enough to identify patients with the ‘dangerous ethmoid’? An anatomical study
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Investigation of the Process of Automatic Control of Current Polarity Reversal in the Conditions of Hybrid Technology of Electrochemical Processing of Corrosion-Resistant Steels
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Study of the process of tool forming made of high-strength materials
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Ways to implement hybrid finishing technology with a hand-held rotary tool
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Burning mouth syndrome: epidemiology, diagnosis and modern treatment standards.
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Tracheotomy in the age of the COVID-19 pandemic: up-to-date review
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MPPT and GMPPT Implementation for Buck-Boost Mode Control of quasi-Z-Source Inverter
PublicationThe focus is on the maximum power point tracking implementation for the buck-boost voltage mode control of a single-phase multilevel inverter based on a three-level neutral point clamped quasi-Z-source topology. To utilize shoot-through states only when boost function is needed and avoid it in the buck mode, two different control approaches are required. This work proposes merged control system which provides switching between...
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CARDINAL REGENERATIVE FEATURES OF THE MRL MOUSE — AN UPDATE
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Association of Oral Status and Early Primary Hypertension Biomarkers among Children and Adolescents
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Selection of form factors of machine carrying systems in reliance on the process duty
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