نتایج جستجو برای: electronic stethoscope

تعداد نتایج: 226414  

Journal: :Physical review letters 2012
Kazuyoshi Yoshimi Hitoshi Seo Shoji Ishibashi Stuart E Brown

We theoretically investigate the interplay between charge ordering and magnetic states in quasi-one-dimensional molecular conductors TMTTF(2)X, motivated by the observation of a complex variation of competing and/or coexisting phases. We show that the ferroelectric-type charge order increases two-dimensional antiferromagnetic spin correlation, whereas in the one-dimensional regime two different...

Journal: :Journal of the Acoustical Society of America 2021

During the COVID-19 outbreak, auscultation of heart and lung sounds has played an important role in comprehensive diagnosis real-time monitoring confirmed cases. With clinicians wearing protective clothing isolation wards, a potato chip tube stethoscope, which is secure flexible substitute for conventional been used by Chinese medical workers first-line treatment COVID-19. In this study, optima...

A M Shafiei A Vakily H Parsaei,

Background: The basic requirements for monitoring anesthetized patients during surgery are assessing cardiac and respiratory function. Esophageal stethoscopes have been developed for this purpose, but these devices may not provide clear heart and lung sound due to existence of various noises in operating rooms. In addition, the stethoscope is not applicable for continues monitoring, and it is u...

Journal: :Archives of disease in childhood 2004
H E Elphick G A Lancaster A Solis A Majumdar R Gupta R L Smyth

OBJECTIVE To investigate the validity and reliability of computerised acoustic analysis in the detection of abnormal respiratory noises in infants. METHODS Blinded, prospective comparison of acoustic analysis with stethoscope examination. Validity and reliability of acoustic analysis were assessed by calculating the degree of observer agreement using the kappa statistic with 95% confidence in...

Journal: :American journal of infection control 2007
Mark W Wood Ryan C Lund Kurt B Stevenson

Antimicrobial stethoscope covers impregnated with silver ions have been developed to prevent surface contamination and potential transmission of bacterial pathogens to patients. To test their practical utility, covers were distributed with the manufacturers' recommendations to a mixed group of health care professionals in a medical/surgical intensive care unit and an emergency department. Seven...

Journal: :Circulation 1966

Journal: :JAMA: The Journal of the American Medical Association 1907

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