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101.
102.
Xuejun?Ryan?Ji Andrea?Beerwinkle Kausalai ?Wijekumar Puiwa?Lei R.?Malatesha Joshi Shuai?Zhang 《Reading and writing》2018,31(9):2095-2113
Latent transition analysis (LTA) was conducted on data from a recent cluster randomized controlled study of 1808 seventh-grade students’ use of a web-based intelligent tutoring system (ITSS). This analysis goes beyond traditional variable-centered methods to focus on profiles of learners and changes in reading class membership between pre- and post-tests for students with and without receiving ITSS intervention. A four-class model was obtained, consisting of poor readers (class 1), delayed readers (class 2), proficient readers (class 3), and readers with specific deficits in problem and solution (class 4). Analysis showed that students receiving the ITSS intervention were more likely than students without the intervention to transition into the proficient class regardless of their initial reading performance profiles. However, the odds ratio of transitioning into the proficient class (as opposed to staying in the same class) in the ITSS condition, compared to the control, was the highest (4.29) for initial readers with deficits in problem and solution, followed by initial poor readers (1.66) and initial delayed readers (1.50). Findings indicated that students in the ITSS condition had larger reading improvement than students in the control condition, particularly for readers with initial deficits in problem and solution. 相似文献
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104.
Currently, learning disabilities (LD) are diagnosed on the basis of the discrepancy between students' IQ and reading achievement scores. Students diagnosed with LD often receive remedial instruction in resource rooms. The available evidence suggests that the educational policy based on this discrepancy model has not yielded satisfactory results. This has led researchers to try other paradigms, such as the component model and response to intervention, for dealing with children with reading disabilities. The component model of reading (CMR) described in the present article identifies the reading component that is the source of reading difficulty and targets instruction at that component. Study 1 describes the CMR and reports on its validity. Study 2 describes the successful outcome of a 7-year CMR-based reading instruction program. Compared to the discrepancy model, the CMR has demonstrated several advantages. 相似文献
105.
Amitabh Joshi 《Resonance》2002,7(11):8-17
“For a biologist”, wrote Sir Peter Medawar, “the alternative to thinking in evolutionary terms is not to think at all”. Yet,
at the end of an education in biology in most Indian universities, this is not quite the view of evolutionary biology that
one is left with. Evolution is presented summarily, almost as a footnote, rather than as a vital branch of biology providing
the conceptual foundation for our modern views about the living world. In this issue ofResonance, we remember Stephen Jay Gould, who wrote extensively and eloquently about evolution for a general audience. It seems fitting,
then, to also briefly discuss why evolutionary biology is important, not only conceptually but also in terms of practical
applications. In this first part of a series of articles on modern evolutionary biology, we examine why the idea of evolution
is so important in our intellectual history, and also take a look at the domain of evolutionary biology as a discipline.
Amitabh Joshi studies and teaches evolutionary genetics and population ecology at the Jawaharlal Nehru Centre for Advanced
Scientific Research, Bangalore. His current research interests are in life-history, evolution, the evolutionary genetics of
biological clocks, the evolution of ecological specialization dynamics. He also enjoys music (especially traditional qawali
in Braj, Farsi, Punjabi and Urdu), history, philosophy, and reading and writing poetry in Urdu, Hindi and English. 相似文献
106.
Amitabh Joshi 《Resonance》2008,13(10):951-970
The year 2008 marks the 100th anniversary of the enunciation of the principle defining the inertial state of populations from
a genetic viewpoint through the independent publication of papers on the topic by G H Hardy and W Weinberg. In this part,
we formally build up the model that underlies the Hardy-Weinberg Equilibrium, as well as its mathematical representation. 相似文献
107.
108.
Afzal Ahmad Benedicta D’Souza Charu Yadav Ashish Agarwal Anand Kumar M. Nandini Vivian D’Souza A. M. Poornima Nutan Kamath 《Indian journal of clinical biochemistry : IJCB》2016,31(4):480-482
Alstrom’s syndrome (AS) is a rare autosomal recessive ciliopathic condition affecting 1:10,00,000 children. It’s a single gene disorder of ALMS1 on chromosome 2 with multisystem involvement with cone-rod retinal dystrophy causing juvenile blindness, obesity, insulin resistance, type 2 Diabetes mellitus, hypogonadism and sensorineural hearing loss. Till now only 800 patients with this disorder has been identified so far. In this report, we describe the case of a 9-year old male boy from south India. He had been initially referred for polyphagia, polyuria, polydipsia, generalized weakness from 1 weeks. On examination he was demonstrated features suggestive of AS, including blindness, obesity, type 2 diabetes, altered lipid profile, hypogonadism, acanthosis nigricans, seborrheic dermatitis, right ear discharge and episodes of respiratory tract infections. So, diagnosis of AS is critical as it can easily be overlooked because of the many features associated with metabolic syndrome starting at age 7, a relatively early age. 相似文献
109.
Hitender Singh Batra Parduman Singh Babu Lal Somani Ashish Gupta Sangeetha Sampath Vivek Ambade 《Indian journal of clinical biochemistry : IJCB》2007,22(2):106-108
Serum ferroxidase and albumin levels were determined in 98 patients of tubercuiosis, of whom 49 were freshly diagnosed, sputum
positive (group-I) & 49 were completely treated patients (group-II). Forty nine age and sex matched healthy individuals were
taken as controls. Mean±SD of serum ferroxidase and albumin levels in controls, group-I and group-II was found to be 864.35±106.35
IU/L & 3.91±0.234 g/dL, 1603.76±222.65 IU/L & 3.24±0.518 g/dL and 1001.78±201.63 IU/L & 3.82±0.43 g/dL, respectively. Serum
ferroxidase in group I was significantly higher as compared to controls and group-II (p<0.01). The decreased levels of serum
albumin in group I, as compared to control and group-II was statistically significant (p<0.01). Serum ferroxidase: albumin
ratio (Ferroxidase in International Unit per gram of albumin) in group I (50.47±10.36 IU/g) was significantly higher than
controls (22.22±3.3 IU/g), (p<0.001) while in group II it was significantly lower (26.72±7.18 IU/g, p<0.001) than group-I
and close to control values. Serum ferroxidase: albumin ratio (IU/g) can therefore be incorporated as a surrogate marker to
assist in diagnosis and prognosis of pulmonary tuberculosis. 相似文献
110.
Saroj Kant Sinha Satya Vati Rana Deepak Kumar Bhasin Kusum Joshi 《Indian journal of clinical biochemistry : IJCB》2005,20(1):169-172
Duodenal ulcer is a common disease and is considered acid-peptic disease. Duodenal ulcer patients are known to have higher
incidence of antral gastritis and duodentitis than general population. Thus one can expect some alteration in the enzyme products
of mucosal cells of antrum and duodenum in this condition. The present study was planned in 30 patients of duodenal ulcer
and 30 of non-ulcer dyspepsia. After overnight fast, upper gastrointestinal endoscopy was done using forward viewing fibreoptic
endoscope. Two pairs of biopsies were taken from the antrum and two from the descending duodenum using standard biopsy forceps.
One pair of biopsy from each site was taken in 10% formal saline for histopathological examination. One pair of biopsies from
each site was collected in saline for the measurement of disaccharidases by Dahlquist method. Activities of lactase, sucrase
and maltase were significantly higher in descending duodenum mucosa as compared to antral mucosa in both groups. Activities
of these enzymes in antrum and duodenum of both groups did not differ significantly. No significant difference was found in
disaccharidases in antrum and descending duodenum in patients with or without histological gastritis. This study suggests
that the disaccharidases do not change in antrum and duodenum of ulcer patients as compared to the patients with non-ulcer
dyspepsia. 相似文献