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1.
MA Restrepo 《Canadian Metallurgical Quarterly》1998,41(6):1398-1411
The purpose of this study was to identify a set of measures that would discriminate 31 predominantly Spanish-speaking children with normal language (NL children) from 31 children with language impairment (LI children). The LI children were identified as such by experienced, bilingual (Spanish/English), ASHA-certified, speech-language pathologists who were currently seeing the children in their caseloads. Children ranged in age from 5 to 7 years and were matched for age, gender, and school. Additionally, nonverbal cognitive measures assured that they did not differ significantly intellectually. Measures of vocabulary, novel bound-morpheme learning skills, and language form were randomly administered to all children. Further, parents responded to questions about their perceptions of their children's speech and language skills and family history of speech and language problems. A stepwise discriminant analysis indicated that 4 measures discriminated the groups of children with a sensitivity of 91.3% and a specificity of 100% (p < .0001): parental report of the child's speech and language skills, number of errors per T-unit, mean length per T-unit, and family history of speech and language problems. A second discriminant analysis indicated that the sensitivity and specificity could be maintained when only the first 2 measures were included. Confirmatory discriminant analyses of the 2- and 4-measure models indicated that the discriminant accuracy was stable on an independent sample. 相似文献
2.
Alternating verbs to indicate or to relinquish cause requires an understanding of semantic and syntactic knowledge. This study evaluated the ability of children with specific language impairment (SLI) to produce the causative alternation in comparison to age peers and to language peers. The children with SLI were proficient in lexically alternating verbs, yet provided fewer passive and periphrastic constructions and more different verbs and adjectival responses. Overgeneralization error data suggest that the semantic systems of some children with SLI were similar to their age comparisons. Individual differences within the SLI group suggested that some children were adept at providing syntactic responses and overgeneralizations, whereas some of the SLI group provided less mature responses of no alternations and no responses. These findings demonstrate a syntactic deficit in the causative alternation for some children with SLI. 相似文献
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4.
KM Egan MJ Stampfer BA Rosner D Trichopoulos PA Newcomb A Trentham-Dietz MP Longnecker R Mittendorf ER Greenberg WC Willett 《Canadian Metallurgical Quarterly》1998,7(5):359-364
For the study of the relationship of the pelviureteric system of one kidney to that of the contralateral one, bilateral cutaneous ureterostomy was performed in 14 dogs. The renal pelvis (RP) and ureter (U) of one side were distended separately with a balloon filled with saline in increments of 1 and 0.25 ml, respectively, and the pressure response of the contralateral RP and U was recorded. The test was repeated after anesthetization of the RP and U. RP distension with 1 ml of saline effected a pressure rise (P < 0.05) in the ipsilateral RP but no pressure response in the ipsilateral U or the contralateral RP or U (P > 0.05). RP distension with 2, 3, and 4 ml of saline induced a significant pressure rise in the ipsi- and contralateral RP but not in the ureters. Ureteric distension produced a pressure elevation (P < 0.05) on the ipsilateral U but had no effect on the contralateral U (P > 0.05) or on either of the renal pelves (P > 0.05). Distension of the anesthetized RP or U effected no pressure response in any of the ipsi- or contralateral RPs or Us. In conclusion, distension of the RP with large volumes led to an increase in pressure in the contralateral RP but not in the U. A reflex relationship is postulated to exist between the two renal pelves and to be mediated through a reflex we call the reno-renal pelvic reflex. It seems that this reflex acts to allow either of the kidneys to share an extra load of the other one by increasing the contractile activity of the RP, thus assumedly assisting the regulation of urine flow. 相似文献
5.
To determine whether children with specific language impairment (SLI) take longer than age peers to recognize sequences of sounds that represent words in their lexicon, we compared auditory lexical decision times of children with SLI to those of typically developing age peers. Children with SLI were significantly slower than peers, but speed of word recognition was not correlated with measures of language comprehension for children with SLI. Furthermore, time to detect an auditory signal and initiate a vocal response did not account for the differences between groups. Possible interpretations of the results are discussed with two explanations-differences between groups in task-related factors that stressed processing capacity or in the nature of phonetic/phonological representations-seeming more likely than others. 相似文献
6.
BACKGROUND: Data on whether long-acting somatostatin analogue octreotide causes or prevents pancreatic injury following endoscopic retrograde cholangiopancreatography (ERCP) are controversial. AIM: This multicentre, prospective trial studied the effect of octreotide on pancreatic injury in a large unselected group of patients after ERCP and endoscopic sphincterotomy. METHODS: The study was carried out in a prospective random manner on 2102 patients in 11 endoscopic centres. Patients in the study received 0.1 mg octreotide acetate and those in the control group received isotonic sodium chloride, subcutaneously before and 45 min after ERCP. Pancreatic injury was assessed by clinical symptoms such as pain, fever and abdominal tenderness. Serum amylase and blood sugar were determined prior to, and 6 and 24 h after the endoscopic procedure. RESULTS: Data from 599 patients in the study group and 600 in the control group were included in the final evaluation. When all the patients were considered, octreotide did not induce pancreatic injury as assessed by clinical symptoms, and diminished the increase of serum amylase levels following ERCP. However, when subgroups of patients were studied, the frequency of increased amylase levels decreased significantly in patients with chronic obstructive pancreatitis and in patients who underwent endoscopic sphincterotomy (P < 0.01). The peak serum glucose level was higher in the treated group when compared to the controls. CONCLUSION: The prophylactic use of long-acting somatostatin does not alter the frequency of post-ERCP pancreatic injury, but it may diminish the rate of increased serum amylase levels in patients with chronic obstructive pancreatitis and also in those with an endoscopic sphincterotomy. 相似文献
7.
We estimated the variability among nations in the prevalence of stunting and wasting, evaluated which national factors are associated with stunting and wasting and examined the relationship of stunting with wasting. The World Health Organization Global Database on Child Growth, a comprehensive conceptual model and a database of national factors were used with variance components and regression analyses. There was substantial variability among nations and among provinces within nations. Most national variability for stunting (76%) and wasting (66%) was explained by national factors and geographic region. Higher energy availability, female literacy and gross product were the most important factors associated with lower prevalence of stunting. The association of health expenditures and stunting differed by region. Higher immunization rate and, for Asia only, energy availability were the most important factors associated with lower prevalence of wasting. Regional differences in the relationship between stunting and wasting were accounted for by national factors. Some factors associated with stunting and wasting differ at the national level. Child malnutrition within a household is greatly influenced by issues at national and provincial levels, and intervention should be considered at all three levels. 相似文献
8.
As part of a wider study, 242 children attending language units attached to mainstream schools were assessed on a number of formal language assessments. In addition, each child's teacher was asked to state whether, for each of four areas of language difficulty, the participant exhibited this impairment. The four areas were: articulation, phonology, syntax/morphology and semantic/pragmatic impairment. This report compares test results between children thought by their teacher or therapist to show each impairment and those not thought clinically to show the difficulty. Investigations into suitable cut-off scores for the tests used were also examined using level of agreement between the two modes of assessment as criteria. For articulation, phonology and syntax/morphology, teacher opinion was found to discriminate significantly on at least some formal tests. However, for children with semantic/pragmatic impairment, no tests used identified their problems. Furthermore, by use of 25th centile cut-off scores, 66% agreement levels between teacher and test groupings were found in all but the group with semantic/pragmatic impairments. The importance and limitations of analysis of teacher-test concordance is discussed as well as the current lack of suitable formal assessment material for semantic and pragmatic language impairment. 相似文献
9.
Cognitive factors and family structure associated with theory of mind development in young children.
Factors associated with individual variation in false belief understanding were examined. Sixty-eight 3- to 5-year-olds were tested on 4 standard false belief tasks. General language ability and verbal memory were found to be significant predictors of false belief understanding after the effects of age were partialled out, but nonverbal memory was not. There was evidence for a threshold effect in that children did not pass false belief tasks before they reached a certain level of linguistic ability. False belief scores were higher in children from larger families, after the effect of age and language had been partialled out. Family size was more strongly associated with false belief understanding in children who were less competent linguistically, suggesting that the presence of siblings can compensate for slower language development in developing false belief understanding. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
10.
Caselli Maria Cristina; Monaco Laura; Trasciani Manuela; Vicari Stefano 《Canadian Metallurgical Quarterly》2008,22(1):27
This article compares lexical and grammatical abilities of a mental-age-matched sample of Italian preschoolers with Down syndrome (DS), specific language impairment (SLI), or typical development. Results showed that the children with DS or with SLI performed significantly worse than did the typically developing children. Although no significant differences emerged in lexical abilities and morphosyntactic comprehension abilities between the children with DS or with SLI, significant differences did emerge in morphosyntactic production capacities. Qualitative analysis of the morphosyntactic errors revealed strong similarities between the two groups. The results are discussed in terms of the role of verbal memory abilities and the linguistic features of Italian. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
11.
M Grundman CR Jack RC Petersen HT Kim C Taylor M Datvian MF Weiner C DeCarli ST DeKosky C van Dyck S Darvesh K Yaffe J Kaye SH Ferris RG Thomas LJ Thal 《Canadian Metallurgical Quarterly》2003,20(3):241-248
Mild cognitive impairment (MCI) appears to be a transitional stage in the development of Alzheimer's disease (AD). Patients with MCI show impaired memory performance and hippocampal atrophy relative to normal elderly controls. Prior studies indicate that the degree of hippocampal atrophy in MCI patients predicts conversion to AD. In contrast to patients with MCI who have deficits primarily in memory, AD patients have clinically evident impairments in both memory and nonmemory cognitive domains. One explanation for the observation that a smaller hippocampal volume predicts conversion to AD might be that hippocampal atrophy is associated with early impairment in nonmemory cognitive areas as well as memory. A link between hippocampal volume and nonmemory function could occur if hippocampal atrophy was correlated with AD pathology in other brain regions. We therefore sought to determine the relationship of hippocampal volume with performance on memory and nonmemory tasks in patients with MCI. Although we found a significant correlation between hippocampal volume and memory performance, we did not find a significant correlation between hippocampal volume and nonmemory performance. We conclude that the relationship between hippocampal volume and risk of AD is likely tied to reduced memory performance and not associated with impairment in nonmemory cognitive domains. 相似文献
12.
BA Brady CM Tucker PA Alfino DG Tarrant GC Finlayson 《Canadian Metallurgical Quarterly》1997,19(4):339-343
Three cases of mediastinal neurogenic tumors originating from the intrathoracic vagal nerve is reported. Two of those is neurilemmomas. One tumor was located in the site to the branching point of the recurrence nerve. The tumor was enucleated. Postoperative hoarseness arose. Another tumor was located in the vagal nerve. The tumor was resected. One of those is neurofibromatosis in the vagus nerve with the axillary tumor. The tumors arose from the vagus nerve was resected. Careful follow-up are required in two patients. 相似文献
13.
This paper is part of a study of prosodic features of familial language impairment (FLI) in English. It reports the results of a set of experiments designed to investigate the factors that play a role in the assignment of stress to words which are longer than two syllables. It appears that stress assignment in FLI is constrained by a restriction limiting the maximal size of the stress domain to a bisyllabic unit, formally defined as the minimal prosodic word. We hypothesize that this restriction is responsible for variable patterns of word truncation, stress levelling and compounding that characterize the production of polysyllabic words. 相似文献
14.
The relation between family coping styles and psychological well-being was compared for adolescents (12-17 years) displaced by Hurricane Katrina and currently living in a relocation camp (n = 50) and nonaffected adolescents (n = 31) matched on age, race, and socioeconomic status. Adolescents in the Katrina sample reported a family mobilizing strategy that reflected an increased reliance and seeking of extra-familial, community-based support but lower self-esteem and more symptoms of distress and depression. Follow-up analyses suggested that the relations between group differences in participants' hurricane-related trauma experiences and greater psychological distress may be mediated in part by the family coping strategy; exposure to increased levels of community-provided support may have unintended consequences on adolescents' psychological health. These results highlight the importance of future research on both potential benefits and costs of family coping styles in adolescents affected by a large-scale disaster. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
15.
Leptospirosis: prognostic factors associated with mortality 总被引:1,自引:0,他引:1
H Dupont D Dupont-Perdrizet JL Perie S Zehner-Hansen B Jarrige JB Daijardin 《Canadian Metallurgical Quarterly》1997,25(3):720-724
To determine the prognostic factors for leptospirosis, we conducted a retrospective study of data collected in the emergency department of our hospital between 1989 and 1993. Sixty-eight patients, for whom the diagnosis of leptospirosis was based on pertinent clinical and epidemiological data and positive serology, were included in this study. Fifty-six patients (82%) were discharged from the hospital, and 12 (18%) died. Multivariate logistic regression demonstrated that five factors were independently associated with mortality: dyspnea (odds ratio [OR], 11.7; 95% confidence interval [CI], 2.8-48.5; P < .05), oliguria (OR, 9; CI, 2.1-37.9; P < .05); white blood cell count, >12,900/mm3 (OR, 2.5; CI, 1.8-3.5; P < or = .01), repolarization abnormalities on electrocardiograms (OR, 5.9; CI, 1.4-24.8; P < or = .01), and alveolar infiltrates on chest radiographs (OR, 7.3; CI, 1.7-31.7; P < or = .01). Identification of these factors on admission might provide useful selection criteria for patients who need early transfer to the intensive care unit. 相似文献
16.
Case reports of malformations associated with maternal diabetes: history and critique 总被引:1,自引:0,他引:1
H Kalter 《Canadian Metallurgical Quarterly》1993,43(4):174-179
Several malformations and malformation complexes have been alleged to be associated with maternal type 1 diabetes mellitus: in particular, sacral dysplasia, caudal regression/sirenomelia, femoral dysplasia, and holoprosencephaly. For some of the malformations the claim rests on case material, and for others on theoretical considerations. The history and evolution of these ideas are presented. 相似文献
17.
This case study describes a patient with multiple trauma associated with acute visual impairment. Funduscopic examination revealed scattered and confluent cotton wool exudates bilaterally. This retinopathy was first described by Othmar Purtscher, an Austrian ophthalmologist, in 1910, which he later referred to as "angiopathia retinae traumatica." 相似文献
18.
Spontaneous language samples of 30 24-month-old toddlers diagnosed with Specific Expressive Language Impairment (SLI-E) were compared with samples produced by an age-matched group of 30 typically developing toddlers. Vocalization patterns, phonetic inventories, and syllable formation patterns were compared. Toddlers with SLI-E vocalized significantly less often than their typically developing peers, had proportionately smaller consonantal and vowel inventories, and used a more restricted and less mature array of syllable shapes. Although the mean incidence of phoneme usage varied significantly in all comparisons, profiles of consonant usage were similar between the two groups for initial phoneme usage, but considerably different for final consonant closure. Such patterns of vocal and phonetic behavior confirm earlier reports of phonetic delay in SLI-E, and suggest that nongrammatical factors contribute to the development of expressive language deficits in toddlers. We further propose a bidirectional model for the expressive deficits in SLI-E, in which the child's limited phonetic capacity interacts with propensities in caretaker interaction to further reduce opportunities for expressive language learning and practice. 相似文献
19.
Spoth Richard; Clair Scott; Greenberg Mark; Redmond Cleve; Shin Chungyeol 《Canadian Metallurgical Quarterly》2007,21(2):137
A major challenge in the dissemination of evidence-based family interventions (EBFIs) designed to reduce youth substance use and other problem behaviors is effective and sustainable community-based recruitment. This understudied topic is addressed by a preliminary study of 14 community-university partnership teams randomly assigned to an intervention condition in which teams attempted sustained implementation of EBFIs with two cohorts of middle school families. This report describes attendance rates of recruited families maintained over time and across both cohorts, along with exploratory analyses of factors associated with those rates. When compared with community-based recruitment rates in the literature, particularly for multisession interventions, relatively high rates were observed; they averaged 17% across cohorts. Community team functioning (e.g., production of quality team promotional materials) and technical assistance (TA) variables (e.g., effective collaboration with TA, frequency of TA requests) were associated with higher recruitment rates, even after controlling for community and school district contextual influences. Results support the community-university partnership model for recruitment that was implemented in the study. (PsycINFO Database Record (c) 2010 APA, all rights reserved) 相似文献
20.
Crystals of rat testis calmodulin, a multifunctional Ca2+-binding protein have been grown from solutions of 2-methyl-2,4-pentanediol. The crystals are triclinic, space group P1, with a = 29.79(4) A, b = 53.74(7) A, c = 24.78(3) A, alpha = 93.46(2)degrees, beta = 96.98(2)degrees, and gamma = 89.05(3)degrees. There is 1 calmodulin molecule per unit cell. The crystals are quite stable to x-rays and diffract beyond 2.5 A resolution. 相似文献