نتایج جستجو برای: ear auricle

تعداد نتایج: 39280  

Journal: :Physics in medicine and biology 2005
Wolfgang Kainz Andreas Christ Tocher Kellom Seth Seidman Neviana Nikoloski Brian Beard Niels Kuster

This paper presents new definitions for obtaining reproducible results in numerical phone dosimetry. Numerous numerical dosimetric studies have been published about the exposure of mobile phone users which concluded with conflicting results. However, many of these studies lack reproducibility due to shortcomings in the description of the phone positioning. The new approach was tested by two gro...

Journal: :International journal of occupational medicine and environmental health 2014
Agata Szyjkowska Elżbieta Gadzicka Wiesław Szymczak Alicja Bortkiewicz

OBJECTIVES To assess the type and incidence of subjective symptoms related to the use of mobile phones in Polish users. MATERIAL AND METHODS The study was conducted in 2005 using a questionnaire survey. Although it has been quite a long time, up to now, no such data have been published for Poland. The questionnaire consisted of 53 questions concerning sex, age, education, general health, char...

Journal: :British heart journal 1944
R A Miller

assumes control over the ventricles. When this happens, two types of auriculo-ventricular rhythm may arise. One is called A-V nodal rhythm and is recognized by the inverted P waves, which are as a rule either abnormally close to the QRS complex or may follow it. The second type of auriculo-ventricular rhythm is known as A-V dissociation, characterized by the rate of the ventricular contractions...

2016
De-Ming Wang Mei-Cen Meng Yun Guo William Oki Wong

Pollen organ Telangiopsis sp., associated with but not attached to vegetative fronds, has been collected from the Upper Devonian (Famennian) Wutong Formation, Dongzhi County, Anhui Province, China. Fertile axes with terminal pollen organs are dichotomous for 2-4 times and may be proximally attached by fragmentary pinnules. Pollen organs are synangiate and borne on the top of a short stalk. Syna...

Journal: :Indian journal of physiology and pharmacology 1965
D R Kulkarni S S Gambhir

When one is interested in the study, particularly the screening, of cardioactive agents, one needs to have the information on the effects of the concerned drug on (i) the rate, (ii) rhythm, (iii) force of contraction and (iv) output of the heart. The methods commonly used to study the effects of drugs on the heart in situ are Cushny's myocardiograph, glass cardiometry and electrocardiography (3...

2016
D. R. Paterson

the recognition of enlargements of the left auricle by posterior percussion, has stimulated interest in this practical question, something still remains to be done. We are, indeed, familiar with the description of the morbid anatomy of the auricles in various diseases of the heart; but the part they play in modifying its percussion boundaries has been generally lost sight of. Perhaps the reason...

Journal: :Circulation 1951
M C McCORD J T TAGUCHI

The effect of the intravenous administration of procaine amide in 25 patients with supraventricular arrhythmias is reported. The data, including six conversions of auricular fibrillation, indicate a pronounced effect of this drug on the auricles as well as on the heart as a whole. Special attention is directed to the finding of frequent and undesirable electrocardiographic and hypotensive effec...

Journal: :Hong Kong medical journal = Xianggang yi xue za zhi 2008
Ravi Meher Saurabh Varshney H C Pant

Arteriovenous malformations are rare in the head and neck region and generally arise from intracranial vessels. We present two rare cases with spontaneous arteriovenous malformations related to the ear. The role of magnetic resonance imaging and colour Doppler sonography in the diagnosis and management of such cases is discussed along with a review of the literature.

Journal: :Perception 2009
Jutta Billino Kai Hamburger Karl R Gegenfurtner

Anomalous motion illusions represent a popular class of illusions and several studies have made an effort to explain their perception. However, understanding is still inconsistent. Age-related differences in susceptibility to illusory motion may contribute to further clarification of the underlying processing mechanisms. We investigated the effect of age on the perception of four different anom...

Journal: :British heart journal 1957
W DEWHURST

Abnormal foci in the auricles, from which the cardiac impulse may arise, beget various types of arrhythmia. Three main groups may be distinguished, namely, ectopic beats, auricular tachycardia (of slower or faster rate), and auricular fibrillation. Although the deranged auricular function is fundamentally similar in each variety, there are reasons for regarding the groups as separate nosologica...

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