Infants' Forgetting of Correlated Attributes and Object Recognition     

Ramesh S. Bhatt  Carolyn Rovee-Collier 《Child development》1996,67(1):172-187

Infants as young as 3 months of age can encode the relations among object features. Because object recognition depends critically upon a match between perceived feature configurations and representations of the object in long-term memory, the present experiments focused on infants' long-term memory for feature correlations. In 3 experiments with 72 3-month-olds, we documented the forgetting functions of different feature correlations, examined their relation to infants' memory for individual features, and replicated the findings with different stimuli. Infants were trained to activate a mobile composed of two kinds of blocks that differed in color, the figures displayed on them, and the figures' colors and were tested after different delays with recombinations of either the block colors, the figures, or the figure colors. Infants remembered some of the original feature combinations for up to 3 days but forgot all of them after 4 days. Even after 4 days, however, infants remembered the individual features that had entered into the original combinations. These results demonstrate that very young infants not only encode the relations among object features but also remember them for several days. Moreover, there is a dissociation in memory between features and feature relations: Feature relations are forgotten sooner than the individual features that comprise those relations.  相似文献   

Practitioner research in teacher education – Edited by Issa M Saleh & Myint Swe Khine     

Ramesh C Sharma 《British journal of educational technology : journal of the Council for Educational Technology》2012,43(1):E39-E40

  相似文献   

Open learning in India: evolution,diversification and reaching out     

Ramesh C. Sharma 《Open Learning》2013,28(3):227-241

Distance education has a history of over four decades in India. There has been a vast growth in the number of learners who need education and thus also the corresponding channels of providing education. Due to the constraints of the traditional educational sector, open and distance learning has been found to be a workable alternative strategy in India. This paper traces the evolution and diversification of open learning in India by examining various factors that led to the growth and success of open learning. This system, as other systems of education, is not free from problems and a critique is provided on the various factors affecting the smooth functioning of India’s open and distance learning system.  相似文献   

Rethinking the Indian Digital Divide: The Present State of Digitization in Indian Management Libraries     

Ramesh C. Gaur 《International Information and Library Review》2003,35(2-4):189

In this paper efforts have been made to analyze the present status of digitization of Indian Management Libraries through a survey carried out in 500 management libraries in India. The issues such as library automation, development of digital libraries, and use of bar code and smart card technology have been discussed. Issues responsible for the widening of the digital divide have been identified.  相似文献   

Investigating geographic variation in use of psychotropic medications among youth in child welfare     

Leslie LK  Raghavan R  Hurley M  Zhang J  Landsverk J  Aarons G 《Child abuse & neglect》2011,35(5):333-342

Objectives

Public Law (P.L.) 110-351, the “Fostering Connections to Success Act,” calls for state child welfare agencies to partner with Medicaid and pediatric experts to provide planning and oversight regarding the provision of health and mental health services, including medication, to children in state custody. Recent reports, media cases, and class action lawsuits suggest over-use of psychotropic medications to address the behavioral needs of children in the child welfare system. We examined geographic variability in psychotropic medication use across US child welfare agency catchment areas to determine how rates of psychotropic medication use vary in relation to child, community, child welfare, and health system-level factors.

Methods

Cross-sectional analysis of Wave 1 data for the 92 child welfare catchment areas participating in the National Survey of Child and Adolescent Well-being, a random probability sample of 2,504 children ages 2-15 years undergoing investigation for abuse and neglect. We employed multilevel regression modeling to examine the impact of catchment-level variables on medication use, controlling for child-level variables.

Results

Fifteen percent of children reported taking psychotropic medications. Rates of medication use across catchment areas ranged widely from 0 to 40%, a 40-fold difference. On multi-level logistic regression modeling, older age (p < .001), male gender (p < .001), emotional and behavioral problems (p < .001), and insurance (p = .05) were associated with psychotropic medication use at the child-level. At the catchment-level, stressful environment within the child welfare system was negatively associated with medication use. No other catchment-level variables examined were found to explain use.

Conclusions

Striking disparities in medication use exist across catchment areas in this national sample. Of the catchment variables examined, only stressful environment was related to medication use.

Practice implications

These findings highlight significant geographic variation in medication use that most likely reflect both under-use and over-reliance on psychotropic medication. The link between child welfare environment and medication use suggests the influence of systemic, as opposed to clinical, causes of variation in medication use. This requires greater implementation of organizational processes governing quality of care for this highly vulnerable population.  相似文献   

Antidyslipidemic Effect of Ocimum sanctum Leaf Extract in Streptozotocin Induced Diabetic Rats     

Ishrat Husain  Ramesh Chander  Jitendra Kumar Saxena  Abbas Ali Mahdi  Farzana Mahdi 《Indian journal of clinical biochemistry : IJCB》2015,30(1):72-77

The antidyslipidemic activity of Ocimum sanctum leaf extract was studied in streptozotocin induced diabetic rats. In this model, there was significant increase in plasma markers of diabetic-dyslipidemia following diminution of lipid metabolizing enzymes. Oral administration of leaf extract (500 mg/kg b.w.p.o.) for 15 days resulted in significant decrease in diabetogenic and dyslipidemia parameters; namely blood glucose, glycosylated hemoglobin, lipid peroxide, free fatty acids, small dense low density lipoprotein, lipid and protein components of plasma lipoproteins, adipose and liver. The regulation of lipids was accompanied by stimulation of postheparin lipolytic activity, reactivation of lecithin cholesterol acyl transferase and hepatic lipoprotein lipase enzymes. The results of the present study demonstrated antidyslipidemic and antioxidant activities in leaf extract of O. sanctum which could be used in prevention of diabetic-dyslipidemia and related complications.  相似文献   

Evaluation of genetic potential of the polyvoltine silkworm （Bombyx mori L.） germplasm and identification of parents for breeding programme     

Rao CG  Seshagiri SV  Ramesh C  Ibrahim Basha K  Nagaraju H  Chandrashekaraiah 《Journal of Zhejiang University. Science. B》2006,7(3):215-220

In the present study, polyvoltine germplasm stock ofAndhra Pradesh State Sericulture Research and Development, Institute （APSSRDI） was evaluated for its performance based on quantitative and qualitative traits. Twenty-one oval and 10 peanut cocoon shaped lines were reared in different seasons of the year. Since the polyvoltines are non-diapausing, six generations were reared and evaluated for various economically important traits based on evaluation index and sub-ordinate function statistical methods. Ten top ranked lines obtained by using both the methods were identified as potential parental strains. Among oval lines, APMI4, APMI 1, APMIS, APMW9, and APMI9, and among peanut lines APMD5, APMDI, APMD3, APMD9 and APMD8 were selected as base material. The identified high yielding lines will be used in various breeding programmes as initial parents for the synthesis of superior polyvoltine breeds/hybrids.  相似文献   

Educational aspirations: Individual freedom or social injustice?     

Ramesh A. Deosaran 《Interchange》1977,8(3):72-87

  相似文献   

A critical examination of Piaget-Inhelder's view on topology     

Ramesh Kapadia 《Educational Studies in Mathematics》1974,5(1):419-424

  相似文献   

The antiquity of earthquakes     

Ramesh Chander  Priyamvada Singh 《Resonance》2000,5(6):30-39

If we adopt the definition that an earthquake is shaking of the earth due to natural causes, then we may argue that earthquakes have been occurring since the very beginning of the earth about 4.5 billion years ago.  相似文献