Zobrazeno 1 - 10
of 63
pro vyhledávání: '"Alf Ivarsson"'
Publikováno v:
Acta Oto-Laryngologica. 112:82-85
In order to evaluate the maxillary ostial function a double-blind, group comparative study with intranasal budesonide and placebo was carried out in 20 adult patients suffering from seasonal rhinitis. The trial started with an entry visit 3 weeks bef
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6794eaccfe81ab61255ce88c1a609f88
https://doi.org/10.3109/00016489209136817
https://doi.org/10.3109/00016489209136817
Autor:
Lars Malm, Alf Ivarsson
Publikováno v:
American Journal of Rhinology. 4:211-213
A climate aggregate is described which can quickly change the flow and the relative humidity of air to be inhaled through the human nose, and, somewhat more slowly, can change the temperature. The flow can be changed from 0 to 3 liters/sec within sec
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::36c73b3ad30a57de9b4edcfe87e755fa
https://doi.org/10.2500/105065890782009361
https://doi.org/10.2500/105065890782009361
Autor:
P. Brühl, Alf Ivarsson
Publikováno v:
Scandinavian audiology. 23(2)
The hearing thresholds of male sheet-metal workers have been studied in a longitudinal investigation with pure tone audiometry during three periods covering 1972–1987. Using these data, the hearing threshold shifts were calculated in various age gr
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::95e211229250e3a67240d3de7531acba
https://pubmed.ncbi.nlm.nih.gov/8085112
https://pubmed.ncbi.nlm.nih.gov/8085112
Publikováno v:
Scandinavian audiology. 23(2)
Hearing damage suffered by male workers in an automobile sheet-metal pressing plant has been studied on five occasions during the period 1964-89. The hearing threshold data have been analysed in order to determine hearing loss due to noise in various
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::d05ba8a0cdb6286a5821920ed087f436
https://pubmed.ncbi.nlm.nih.gov/8085116
https://pubmed.ncbi.nlm.nih.gov/8085116
Publikováno v:
Scandinavian audiology. 21(2)
A computer-controlled fixed-frequency Békésy audiometer has been used together with simplified mathematical models for hearing threshold measurements and analysis in 1,796 subjects from seven different noise environments with exposures varying from
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::638a1f3b41744b6b31eebd8d1d9ecae0
https://pubmed.ncbi.nlm.nih.gov/1641576
https://pubmed.ncbi.nlm.nih.gov/1641576
Publikováno v:
Acta Oto-Laryngologica. 81:442-449
A method is described for studying pressure-dependent variation in the volume of the mucosa of the middle ear. Studies were performed at different pressures in the middle ear as well as at different ambient pressures. It was found that the pressure-d
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5bd6873a3469db4d7b3f0e56e6ff5f86
https://doi.org/10.3109/00016487609119983
https://doi.org/10.3109/00016487609119983
Autor:
Alf Ivarsson, K Pedersen
Publikováno v:
Acta Oto-Laryngologica. 84:38-43
A model study was carried out on human temporal bones to assess quantitatively the displacement of the round and oval windows when different pressure levels were applied to the external ear canal and inside the middle ear. It was found that the major
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::882732e7dacfa3541b4249fead5d80e9
https://doi.org/10.3109/00016487709123940
https://doi.org/10.3109/00016487709123940
Publikováno v:
Acta Oto-Laryngologica. 82:368-378
Five patients with Meniere's disease were exposed to underpressure in a pressure chamber while suffering from acute attacks with vertigo, nausea, tinnitus and fullness of the ear. Spontaneous nystagmus was the objective criterion for the selection of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::eb9e13e493337a2c2a43b708e43cd1af
https://doi.org/10.3109/00016487609120921
https://doi.org/10.3109/00016487609120921
Publikováno v:
Scandinavian Audiology. 12:157-163
By means of a new computerized impedance meter, middle ear pressure, tympanograms and ipsilaterally elicited middle ear reflex can be recorded and presented in 3 sec. Owing to the fast rate of air pressure change in the external ear canal it is not n
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdd5e305a94ec60aaf01a38d9c8d157d
https://doi.org/10.3109/01050398309076241
https://doi.org/10.3109/01050398309076241
Publikováno v:
ORL. 46:74-83
In a series of 68 healthy ears the muscular opening function of the Eustachian tube was assessed in two different ways. A pressure equilibration capacity of ± 100 mm H2O was tested by a quantitative impedance technique using a pressure chamber and c
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0d17801c64b2b8e49d0c7efb796a440b
https://doi.org/10.1159/000275690
https://doi.org/10.1159/000275690