A comparison of FUV dayglows measured by STSAT-1/FIMS with the AURIC model in a geomagnetic quiet condition

2014 ◽  
Vol 65 (5) ◽  
pp. 786-791
Author(s):  
Hosik Kam ◽  
Yong Ha Kim ◽  
Jun-Seok Hong ◽  
Joon-Chan Lee ◽  
Yeon-Ju Choi ◽  
...  
Keyword(s):  
Quiet Condition

Speech Discrimination in an Aging Population

1969 ◽  
Vol 12 (1) ◽  
pp. 210-217 ◽  
Author(s):  
Vera Gruber Blumenfeld ◽  
Moe Bergman ◽  
Elliott Millner
Keyword(s):  
Test Scores ◽  
Age Group ◽  
Elderly Adults ◽  
Speech Discrimination ◽  
Quiet Condition ◽  
Test Conditions ◽  
Hearing Handicap ◽  
Test Retest Reliability ◽  
The Relationship ◽  
Noisy Condition

The Rhyme Test of speech discrimination was used to study the relationship between speech discrimination scores and aging in 55 elderly adults. Test-retest reliability of the scores, the relationships of the scores obtained under test conditions of quiet and of competing noise, and the agreement between the scores and the subjects' self-estimate of hearing handicap in everyday listening situations were examined. Rhyme Test scores tended to decrease as age increased, particularly in the age group over 60, for the test in quiet as well as in noise. Correlations between test scores and aging were higher for the quiet condition than for the noisy condition. Test-retest correlations in the quiet condition were high, despite retest intervals as long as nine months. Subjects' self-estimates of hearing handicap correlated with their speech discrimination scores.

ABR Screening of High-Risk Infants: Effects of Ambient Noise in the Neonatal Nursery

1986 ◽  
Vol 94 (5) ◽  
pp. 552-560
Author(s):  
Kenneth H. Richmond ◽  
Dan F. Konkle ◽  
William P. Potsic
Keyword(s):  
Intensive Care Unit ◽  
Intensive Care ◽  
High Risk ◽  
Background Noise ◽  
Neonatal Intensive Care ◽  
Ambient Noise ◽  
Quiet Condition ◽  
Screening Programs ◽  
High Risk Infants ◽  
Signal Intensities

This investigation examined ABR waveforms obtained at five signal intensities (20, 30, 40, 60, and 80 dB nHL) for adults and at three signal intensities (20, 40, and 80 dB nHL) for infants. ABR recordings were obtained in a quiet condition and repeated for three different intensity levels (40, 50, and 60 dBA) of background noise characteristic of a neonatal intensive care unit. The subjects were ten adults and ten infants whose ABRs were judged normal when measured at 20 dB nHL in the quiet condition. Results indicated that high levels of ambient noise (up to 60 dBA) did not influence either absolute wave V or interwave latencies measured for stimulus intensities of 60 and 80 dB nHL. ABR waveforms obtained at stimulus intensities often used for screening (i.e., 20, 30 or 40 dB nHL), however, were substantially altered for some subjects as a function of increasing levels of ambient noise. This observation was most apparent for the infant population and has important implications for the design of infant ABR screening programs.

1658

2007 ◽  
Vol 31 ◽  
pp. 361-438
Keyword(s):  
The Other ◽  
People Of God ◽  
Quiet Condition ◽  
The People ◽  
New Buildings

We have received your counsell's letter, and the counsell heare are very sensible of your condition and will not want desires and endevors to get you monyes. The assignments allready orderd you will, I presume, not make your arreare so great as a 100,000. We shall compare your account sent to collonel Jones with what the treasurers heare comput it at, and if you are not equally concerned and provided for with any of the other forces we shall soone remidy that difficulty, though the complaints from Scotland and the army in England are much to the same purpose, and really our case is so sadde that which way we shall be able to turn ourselves from the difficultyes we are under I know not; but I shall no more at presant trouble you and shall by the next have an exact account, and in the meane time we shall charge the 20,000 formerly assigned out of delinquents' lands upon the new buildings.1 Our fleet and armyes are in a sadde condition. This army never hade such an occation to be tempted as they have now, yet are, and I trust will be, in a very stauch2 and quiet condition. The Lord direct and manage the hearts of the parliment to such a consideration of the case of this nation that the issue may be for further settlement of thes poore nations, upon true and lasting foundations in preserving the libertyes of the people of God, and the civill libertyes allso, both of which we ought to have a due regard unto, though the 1st to have the preference. I think ther is much in the present goverment which conserves both, which that it may be most upon our hearts is the desire of,

scholarly journals Quiet-condition variations in the scale height at F2-layer peak at Jicamarca during solar minimum and maximum

2007 ◽  
Vol 25 (12) ◽  
pp. 2541-2550 ◽  
Author(s):  
C.-C. Lee ◽  
B. W. Reinisch
Keyword(s):  
Solar Minimum ◽  
Critical Frequency ◽  
Solar Maximum ◽  
Peak Height ◽  
Scale Height ◽  
Quiet Condition ◽  
Critical Frequency Fof2 ◽  
Two Parameters ◽  
Thickness Parameter ◽  
Layer Peak

Abstract. This study is the first attempt to examine the quiet-condition variations in scale height (Hm) near the F2-layer peak in the equatorial ionosphere. The data periods of Hm derived from the Jicamarca ionograms are January-December 1996 and April 1999–March 2000. The results show that the greatest and smallest Hm values are generally at 11:00–12:00 LT and 04:00–05:00 LT, respectively. Additionally, the sunrise peak occurs at 06:00 LT only during solar minimum. The post-sunset peaks in the equinoctial and summer months are more obvious during solar maximum. The Hm difference between solar minimum and maximum are significant from afternoon to midnight. On the other hand, the Hm values during 07:00–10:00 LT for solar minimum are close to those for solar maximum. Furthermore, the correlation of Hm with the critical frequency (foF2) of F2-layer is generally low. In contrast, the correlation between Hm and the peak height (hmF2) of F2-layer is high. For Hm and the thickness parameter (B0) of F2-layer, the correlation between these two parameters is almost perfect.

HINT List Equivalency Using Older Listeners

1998 ◽  
Vol 41 (6) ◽  
pp. 1335-1340 ◽  
Author(s):  
Wendy D. Hanks ◽  
Gabrielle D. Johnson
Keyword(s):  
Hearing Impairment ◽  
Hearing Aids ◽  
Latin Square ◽  
Sensorineural Hearing ◽  
Quiet Condition ◽  
Significant Difference ◽  
Sensorineural Hearing Impairment ◽  
Older Populations

HINT list equivalency was examined using 24 listeners between 60 and 70 years old who had sensorineural hearing impairment. A Greco-Latin square design was used to ensure that each list was presented an equal number of times per condition. Four conditions were tested: (1) speech in quiet, (2) speech in 65 dBA noise with noise at 0° azimuth, (3) speech in 65 dBA noise with noise at 90° azimuth, and (4) speech in 65 dBA noise with noise at 270° azimuth. Speech materials were always presented at 0° azimuth. Overall mean scores ranged from 29.9 dBA for the quiet condition to 63.4 dBA for the noise at 0° azimuth condition. A significant difference was found between Lists 13 and 16 only. This was attributed to audibility differences among the listeners. Therefore, the 25 HINT lists should be considered equivalent for older populations with similar hearing impairment. The HINT lists can be used for relative measures, such as comparison of aided versus unaided sentence SRTs or comparison of 2 different hearing aids.

Prosodic differences in mothers' speech to toddlers in quiet and noisy environments

2003 ◽  
Vol 24 (4) ◽  
pp. 539-560 ◽  
Author(s):  
ROCHELLE S. NEWMAN
Keyword(s):  
Background Noise ◽  
Older Children ◽  
Noisy Environments ◽  
Quiet Condition ◽  
Mixed Support ◽  
Word Duration ◽  
Noisy Conditions

We examined mothers' speech to 2-year-old children in both quiet and moderately noisy conditions. Mothers were recorded while teaching their children two words, one of which occurred in the context of other people speaking. Parents used characteristics of infant-directed speech (IDS) to these older children. Even more interesting was that many of the prosodic changes typical in IDS were accentuated in noise. In a context in which multiple people were speaking simultaneously, mothers spoke to their children with both increased pitch and increased word duration relative to when they spoke in a quiet condition. However, these changes were quite small, lending only mixed support to proposals that one of the advantages of IDS is that it is easier to separate from background noise.

scholarly journals Within Average Variability of the Acoustically Evoked Response

1971 ◽  
Vol 14 (1) ◽  
pp. 179-188 ◽  
Author(s):  
Lawrence W. Keating ◽  
Howard B. Ruhm
Keyword(s):  
Evoked Response ◽  
Evoked Responses ◽  
Eeg Activity ◽  
Quiet Condition ◽  
Male Subjects

This study explored the effects of various tasks, designed to alter the degree of “attention to stimuli” on the variability of the EEG activity which gives rise to the average acoustically evoked response. Evoked responses to 50 dB SL clicks were recorded from the vertex of eight male subjects under four conditions (1) quiet, (2) .counting, (3) discriminating, and (4) reading. Results showed the quiet condition to yield the greatest variability while reading exhibited the least.

Sign in / Sign up

Export Citation Format

Share Document