نتایج جستجو برای: earplugs
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Electroencephalography (EEG) is widely used for detecting transcranial-magnetic stimulation (TMS) evoked responses in the human brain. TMS-evoked potentials (TEPs) may contain both direct activations due to TMS-induced cortical electric field and indirect subsequent multisensory TMS [[1]Ilmoniemi R.J. Kičić D. Methodology combined EEG.Brain Topogr. 2009; 22: 233-248Crossref PubMed Scopus (204) ...
Bright light therapy (BLT) is widely accepted as first-line treatment of seasonal affective disorder (SAD). However, the mechanism of action of BLT is still widely unknown. On the other hand, in mammals, light penetrates the skull bone and reaches the brain, and extra ocular transcranial phototransduction has physiological influences such as changed reproductive cycles and increased brain serot...
High Fidelity Modeling and Experimental Evaluation of Binaural Bone Conduction Communication Devices
Bone conduction (BC) headsets can present audio when ambient sounds must be either blocked by hearing protection, or preserved to maintain situational awareness. Binaural BC is especially desirable to enable simultaneous talkers using spatialized audio. Development of advanced binaural BC devices has been limited by lack of empirical data, inadequate modeling and design tools, and difficult exp...
As I completemy first year asEditor of JAMAOtolaryngology– Head & Neck Surgery, I would like to take this opportunity to thankourauthors, editors, staff, reviewers, and readers for the manysubstantial contributions theymadeto the journal.Withoutourauthorsproducingthe research and sharing their thoughts, experiences, and observations, we would not have the content to create our fine journal. I t...
Aalto University, P.O. Box 11000, FI-00076 Aalto www.aalto.fi Author Marko Hiipakka Name of the doctoral dissertation Estimating pressure at the eardrum for binaural reproduction Publisher School of Electrical Engineering Unit Department of Signal Processing and Acoustics Series Aalto University publication series DOCTORAL DISSERTATIONS 149/2012 Field of research Acoustics and Audio Signal Proc...
OBJECTIVE Insertion of tympanostomy tubes is the most common ambulatory surgery performed on children in the United States. Tympanostomy tubes are most often inserted because of persistent middle ear fluid, frequent ear infections, or ear infections that persist after antibiotic therapy. Despite the frequency of tympanostomy tube insertion, there are currently no clinical practice guidelines in...
In this book, Steven Kelman of Harvard's Kennedy School of Government compares the behavior of two government agencies with similar missions: the Occupational Safety and Health Administration in the United States and the Arbetarskyddsverket or Worker Protection Board in Sweden. As James Q. Wilson notes in a preface, Kelman emerges with a paradox: in "[t]he United States, that pre-eminent commer...
The article by Gangwisch et al 1 in this issue of Hypertension identifies another significant health hazard associated with inadequate sleep. The authors document 2-fold greater risk for hypertension among adults in their fourth to sixth decades who sleep 5 hours each night. Whereas the independent risk of short sleep duration for developing hypertension is attenuated to 1.6-fold after adjustin...
Acute otitis externa (AOE) is defined as a diffuse inflammation of the external ear canal, which may also involve the pinna or tympanic membrane (1). This condition is also known as “swimmer’s ear” or “tropical ear” due to a higher prevalence in individuals with prolonged water exposure during swimming or who live in warm and humid climates (2). The annual incidence of AOE is about 1:100 to 1:2...
In the 1990s, it is difficult to open a newspaper or watch television and not find someone claiming that magnets promote healing.Rarely do these claims stem from double-blind, peer-reviewed studies, making it difficult to separate the wheat from the chaff. The current fads resemble those at the end of the last century, when many were falsely touting the benefits of direct electrical and weak ma...
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