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排序方式： 共有108条查询结果，搜索用时 31 毫秒
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M. Swarna A. Jyothy P. Usha Rani P. P. Reddy 《Indian journal of clinical biochemistry : IJCB》2003,18(2):102-105
Three thousand cases with mental retardation referred from different hospitals were screened for aminoacid disorders. Among
them one case of hyperprolinuria and another case of hyperprolinuria with hyper hydroxyprolinuria were detected. These are
the first cases to be reported from the state of Andhra Pradesh. 相似文献
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There is growing evidence that children with reading difficulties show impaired auditory rhythm perception and impairments in musical beat perception tasks. Rhythmic musical interventions with poorer readers may thus improve rhythmic entrainment and consequently improve reading and phonological skills. Here we compare the effects of a musical intervention for poor readers with a software intervention of known efficacy based on rhyme training and phoneme‐grapheme learning. The research question was whether the musical intervention would produce gains of comparable effect sizes to the phoneme‐grapheme intervention for children who were falling behind in reading development. Broadly, the two interventions had similar benefits for literacy, with large effect sizes. 相似文献
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K. Goswami 《Indian journal of clinical biochemistry : IJCB》2013,28(1):71-73
Traditional eye cosmetics ‘Surma’ use is a popular practice. A total 34 ‘Surma’ samples of black, brown, orange, grey and white were collected and analysed for the presence of lead. High lead levels were detected in all samples except white colour ‘Surma’. Blood lead concentrations were measured in 93 children, of whom 69 used ‘Surma’ regularly. The mean blood lead concentration of ‘Surma’ users was found to be 29.6 ± 10.2 μg/100 ml; where as non user’s value was 4.9 ± 0.8 μg/100 ml. Also, the low haemoglobin levels were observed in the users (10.2 ± 1.4 g/100 ml). In conclusion, the use of ‘Surma’ is associated with high blood lead concentration with significant reduction of haemoglobin levels. For better quality of life, the use of lead free ‘Surma’ is suggested. 相似文献
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Hsiao-Lan Sharon Wang Martina Huss Jarmo A. H?m?l?inen Usha Goswami 《Reading and writing》2012,25(2):509-536
The present study explores the relationship between basic auditory processing of sound rise time, frequency, duration and
intensity, phonological skills (onset-rime and tone awareness, sound blending, RAN, and phonological memory) and reading disability
in Chinese. A series of psychometric, literacy, phonological, auditory, and character processing tasks were given to 73 native
speakers of Mandarin with an average age of 9.7 years. Twenty-six children had developmental dyslexia, 29 were chronological
age-matched controls (CA controls) and 18 were reading-matched controls (RL controls). Chinese children with dyslexia were
significantly poorer than CA controls in almost all phonological tasks, in semantic radical search, and in phonological recoding
proficiency. Chinese children with dyslexia also showed significant impairments in most of the basic auditory processing tasks.
Regression analyses demonstrated that different auditory measures of rise time discrimination were the strongest predictors
of individual differences in Chinese character reading (1 Rise task) and phonological recoding (2 Rise task) respectively,
with frequency discrimination also important for nonsense syllable decoding. Our results support the hypothesis that accurate
perception of the amplitude envelope of speech is critical for phonological development and consequently reading acquisition
across languages. 相似文献
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Investments in modernization, innovation and gains in productivity: Evidence from firms in the global paper industry 总被引：1，自引：0，他引：1
This paper examines the impact of investments in modernization and innovation on productivity in a sample of firms in the global pulp and paper industry. This industry has traditionally accounted for significant amounts of employment and capital investment in North America and Europe. In contrast to much of the existing literature which focuses on the impact of R&D and patents on firms’ performance and productivity, we examine data on actual investment transactions in four main areas: (i) mechanical, (ii) chemicals, (iii) monitoring devices and (iv) information technology. We find that firms that implemented a greater number of investment transactions in modernization achieved higher productivity, and these estimated quantitative effects are greater than the impact of standard innovation variables such as patents and R&D. Investment transactions in the information technology and digital monitoring devices imparted a particularly noticeable boost to productivity. These results are obtained after controlling for other firm-specific variables such as capital intensity or mergers and acquisitions. Thus, firms’ decisions to undertake investments in modernization and incremental innovations appear to be critical for achieving gains in productivity, compounding to form meaningful differences in performance, productivity and competitive position across firms in the longer run. For some of the traditional industries like pulp and paper, R&D and patents seem to be particularly poor indicators of innovation and, more generally, how firms go about achieving gains in productivity. 相似文献