(1) Three trichothecenes (deoxynivalenol [DON], 15-acetyldeoxynivalenol [15-ADON], and nivalenol [NIV]) and zearalenone (ZEA) were detected in corn samples, and DON, NIV, and ZEA were found in wheat samples.
(2) Parameters monitored during the fermentation were deoxynivalenol (DON) and 15-acetyl deoxynivalenol (15-ADON) production, fungal mass, carbohydrate utilization, and pH.
(3) 15-Acetyldeoxynivalenol (15-ADON), a biosynthetic precursor of deoxynivalenol (DON), was extracted from rice cultures of Fusarium graminearum R6576 and purified.
(4) Future risk assessments for DON should therefore include consideration of 15-ADON occurrence and toxicity.
(5) Risk assessments for DON should therefore consider the potential for 15-ADON occurrence and toxicity in food and feed.
(6) The results indicate that 15-ADON was more or less toxic than DON depending on the route of administration.
(7) Growing female B6C3F1 mice were fed semi-purified diets containing 0, 0.5, 2.0 and 5.0 ppm 15-ADON over 56 days and assessed for effects on feed intake, body-weight gain, terminal organ weights and blood clotting function.
(8) After a short review of the current mammographic techniques, the main features of synchroton radiation in the X-ray field are analyzed, especially of that emitted by the Adone storage ring.
(9) Compared with Shangqiu corn, the incidence and mean level of DON in Linxian were 2.4 and 5.8 times higher, respectively, and those of 15-ADON were 16.3 and 2.6 times higher, respectively.
(10) Although mice treated with 15-ADON had significantly decreased bleeding times, other measurements of clotting function indicated no differences between the control and treated groups.
(11) Combinations of deoxynivalenol (DON), 15-acetyldeoxynivalenol (15-ADON) and HT-2 toxin were tested at various concentrations and the effects were determined based on percent mortality.
(12) In general, qualitative and quantitative production of DON and 15-ADON by Fusarium graminearum R6576 were dependent on the composition of the complex liquid medium.
(13) This is the first report to demonstrate the presence of a group of mycotoxins in corn-staple food of Linxian residents, including Nivalenoal (NIV), Deoxynivalenol (DON), 3-acetyl-deoxynivalenol (3-ADON), 15-acetyl-deoxynivalenol (15-ADON), T-2 toxin (these 5 toxins belong to trichothecenes) and zearalenone (ZEN).
(14) For pigs receiving 15-ADON and DON ip, increased dosage was associated with decreased average time to vomition, increased duration of emesis and increased average number of vomitions.
(15) The acute toxic effects of deoxynivalenol (DON) and 15-acetyldeoxynivalenol (15-ADON) were compared in the B6C3F1 female mouse after oral and intraperitoneal exposure.
(16) Dietary 15-ADON at the 0.5- and 2.0-ppm levels did not show significant effects on weight gain, feed intake or organ weights.
(17) This is the first report of the natural coexistence of a group of Fusarium mycotoxins (nivalenol [NIV], deoxynivalenol [DON], 3-acetyl-deoxynivalenol [3-ADON], 15-acetyl-deoxynivalenol [15-ADON], and zearalenone [ZEN]) in corn from Linxian, China, an area with a high risk of esophageal cancer.
(18) Results indicated that 15-ADON was only slightly less toxic than DON and that chronic manifestations of dietary 15-ADON were similar to those found previously for DON.
Spondee
Definition:
(n.) A poetic foot of two long syllables, as in the Latin word leges.
Example Sentences:
(1) Since Martin and Sides (Asha, 1985, 27, 29-36) found that only 6% of audiologists reported actually following current ASHA guidelines for SRT testing (Asha, 1979, 21, 353-356), a comparison was made on 36 normal-hearing adults of spondee thresholds (ST) collected following strictly those guidelines (ST1) and by an experimental procedure based on the ASHA guidelines for pure-tone audiometry (Asha, 1978, 20, 297-301) (ST2).
(2) The results show that: (a) in young listeners, individual differences in speech perception performance are remarkably small resulting in low correlations between the tests, while in the elderly tests of phoneme, spondee, and sentence perception overlap considerably; (b) speech perception in the elderly seems to be largely determined by hearing loss at the higher frequencies, whereas the effects of other auditive and cognitive factors seem to be relatively small or absent; and (c) performance in the elderly is only partly correlated with age.
(3) With changes in frequency response of the stimulus delivery system, SRT shifted differentially for spondees and monosyllables.
(4) Functions relating the percentage of spondees correctly identified to stimulus level were similar for the three transducers, and notably, their slopes were comparable.
(5) Six sets of spondees were derived from the 36-word corpus of a Northwestern University recording of CID W-1 spondaic words.
(6) The differences were judged clinically insignificant, nevertheless when considered with earlier data it may be concluded that time-compressed spondees may come to have use as a clinical device.
(7) The derived Spanish word list was compared for equivalency to English spondees on a group of bilingual adults.
(8) The performance of five subjects implanted with the Nucleus 22-electrode cochlear implant was compared on the Four-Choice Spondee test, the Central Institute for the Deaf Sentence test, and Speech Tracking across the following conditions: (1) five most apical electrodes eliminated from the subject's MAP (stimulus parameters); (2) five most basal electrodes eliminated from subject's MAP; (3) the middle five electrodes eliminated from subject's MAP; and (4) subject's current MAP.
(9) Various testing and training materials (Chinese version of the monosyllable-trochee-spondee [MTS] test) as well as modified candidate evaluation procedures and criteria were applied.
(10) The median scores for open set tests involving auditory stimulation alone were: 14% correct (range 0 to 60) for monosyllabic words, 44% correct (range 0 to 100) for spondees, and 45% correct (range 0 to 100) for words in the Everyday CID Sentences.
(11) This study investigated the reliability of the Tillman-Olsen procedure for establishing the spondee threshold (ST).
(12) The effects of changing the duty cycle of an interrupted-broad band masker on the spondee thresholds of hearing-impaired subjects were explored.
(13) In addition, identification performance for spondees with a hard-easy syllable pattern was higher than for spondees with an easy-hard syllable pattern, indicating a primarily retroactive pattern of influence in spoken word recognition.
(14) Methods for measuring masking level differences (MLDs) at 500 Hz and for spondees were used with 290 subjects: 50 persons with normal hearing and 240 patients with various diseases.
(15) Individual syllables within a spondee were characterized as either "easy" or "hard" depending on the syllable's neighborhood characteristics; an easy syllable was defined as a high-frequency word in a sparse neighborhood of low-frequency words, and a hard syllable as a low-frequency word in a high-density, high-frequency neighborhood.
(16) Monitored live voice (MLV) and the Auditec of St. Louis recordings of the Central Institute for the Deaf spondees were used as stimuli.
(17) Results revealed a systematic and reliable effect wherein mean threshold decreased from 19.1 dB SPL to 12.2 dB SPL as set size was reduced from 36 to 3 spondees.
(18) 86, 1294-1309 (1989)], the validity and manageability of a test battery comprising auditive (sensitivity, frequency resolution, and temporal resolution), cognitive (memory performance, processing speed, and intellectual abilities), and speech perception tests (at the phoneme, spondee, and sentence level) were investigated.
(19) Each masker was presented continously or pulsed simultaneously with the onset of each spondee word.
(20) For the hearing-impaired subjects, SRT in quiet approximated the amount of hearing loss in the frequency region of importance for each of two sets of speech materials--spondees and monosyllables.