Neurometabolic disorders     

Ashok Panagariya  Vinay Agarwal 《Indian journal of clinical biochemistry : IJCB》2007,22(2):1-2

  相似文献   

Market structure and technology: Their interdependence in Indian industry     

Ashok V. Desai 《Research Policy》1985,14(3):161-170

A survey of 37 Indian industries shows that their market structures are competitive; they range from oligopolistic industries to industries with a large number of firms. The number of firms has been increasing in almost all industries. The paper classifies the market structures into four classes based on the degree of concentration and the coefficient of variation of market shares. A large number of small firms emerge in industries with two characteristics: namely, where technology is easily transferred within the country, and where buyers are sensitive to price and insensitive to quality. Industries with the opposite characteristics tend to be oligopolistic. The paper proposes a classification of the technological behaviour of firms on the basis of whether a firm produces more innovations than it uses or less, and whether its stimulus to innovation is scientific or economic.  相似文献   

Effect of increasing duration of diabetes mellitus type 2 on glycated hemoglobin and insulin sensitivity     

Meena Verma  Sangeeta Paneri  Preetha Badi  P. G. Raman 《Indian journal of clinical biochemistry : IJCB》2006,21(1):142-146

Non-insulin dependent diabetes mellitus (NIDDM) is the most rapidly growing chronic metabolic disorder in the world. With advancement in the age and duration of diabetes there is a gradual tendency for the level of blood sugar to rise along with a subsequent increase in the HbA1c as well as in the fasting insulin level. Whether this is an aging process or increased frequency of diabetes is still controversial. The correlation between glucose and insulin sensitivity is consistent with the idea that the degree of chronic hyperglycemia is a cause of excessive insulin resistance in type 2 diabetes, i.e. the insulin resistance which characterizes type 2 diabetes but not nondiabetic subjects matched for age, gender, family history and duration of diabetes. The study comprised a total of 76 subjects out of which 30 were normal, non-diabetic persons and the rest 46 were diabetics with different duration of time in years, after being diagnosed diabetic. Data was analyzed after dividing the subjects into four groups—Group 1 comprised of one year old diabetics, Group 2 was made up of those, who had diabetes, for the past 2–5 years, Group 3 included patients who were diabetic since more than 5 years and Group 4 included non-diabetics as the normal control group. The results obtained indicated that the HbA1c levels showed a significant increase with the duration of diabetes as well as the insulin level showed a significant correlation after adjustment for age, sex and duration of diabetes.  相似文献   

Serum lipids in hypothyroidism: Our experience     

Archana Prakash  Ashok Kumar Lal 《Indian journal of clinical biochemistry : IJCB》2006,21(2):153-155

In order to determine whether the screening of lipid profile is justified in patients with hypothyroidism we estimated serum lipids in cases having different levels of serum TSH. 60 patients of hypothyroidism in the age group of 20 to 60 yrs were studied for thyroid profile over a period of one year. On the basis of serum TSH level the cases were divided into three groups: In the first group TSH concentration was 8.8±2.99 μlU/ml, 95% confidence interval (Cl) 8.8±1.07, whereas serum total cholesterol and LDL-chol levels were 196±37.22 and 126±29.17 mg/dl respectively. The statistical analysis of these two groups showed a significant correlation between raised TSH levels and serum total cholesterol and LDL-chol (P<0.05 & P<0.01) respectively. We conclude that hypothyrodism is associated with changes in lipid profile.  相似文献   

Role of bilirubin, vitamin C and ceruloplasmin as antioxidants in coronary artery disease [CAD]     

V. K. Verma  V. Ramesh  Satyendra Tewari  R. K. Gupta  Nakul Sinha  C. M. Pandey 《Indian journal of clinical biochemistry : IJCB》2005,20(2):68-74

A study has been carried out on 250 CAD patients to see how the serum levels of three antioxidants i.e., Vitamin C, Bilirubin and Ceruloplasmin are related to the CAD risk factors and characteristics in these patients. The number of severe category CAD patients declined by 7–18% with increasing serum levels of the three antioxidants and, triple vessel disease declined by 14–20%. A decline of 39% in Myocardial Infarction (MI) occurred with increasing serum Ceruloplasmin. Serum Ceruloplasmin was significantly lower in the MI group compared to the non MI group CAD patients. There was a steady and a significant decline in the mean values of serum levels of cholesterol, Triglyceride, VLDL cholesterol along with BMI with increasing serum level. The study indicates that with increasing serum levels of the three antioxidants studied, the % MI along with % Triple vessel disease and severity of CAD goes down suggesting that the modifiable risk factors have to be suitably modified in order to maintain a reasonably high level of these antioxidants, as the risk factors are inversely related to the serum antioxidant levels.  相似文献   

LWT–DSR based new robust framework for watermark extraction under intentional attack conditions     

Vivek Singh Verma  Rajib Kumar Jha 《Journal of The Franklin Institute》2017,354(14):6422-6449

This paper proposes a new watermarking approach using dynamic stochastic resonance (DSR) based tuning operation to extract the watermark logo from the watermarked image that has undergone different intentional and signal processing attacks. This method is intended to provide remedies from the shortcomings of the technique proposed by Lin et al. (2008), and invalidates the effect of intentional attacks recently designed by Meerwald et al. (2009). The algorithm incorporates three level image decomposition using lifting wavelet transform (LWT) and low-pass subband is utilized for data hiding purpose. Watermark bits are embedded into the blocks of non-overlapped wavelet coefficients of the cover image by quantizing the two maximum coefficients of the corresponding block. In watermark extraction process, the DSR is applied by performing the tuning operation on coefficient blocks of attacked watermarked image. It is a parameter dependent approach that enhances the performance of watermark extraction, where the parameters of DSR inherently depend on the image properties such as standard deviation or variance. As far as security is concerned, the randomization of wavelet coefficients, blocks, and watermark bits helps the framework to be more secure. The proposed technique is also examined against multiple watermarking attack and successfully proves its authenticity and ownership. Comparison of the proposed technique with recent techniques shows remarkable improvement in terms of robustness and security against various intentional, signal processing, and geometrical attacks.  相似文献   

Calcium antagonist prevents calcium flux induced necrosis and apoptosis in ischemic reperfusion of rat liver     

Pronobesh Chattopadhyay  Nevneet Verma  Anurag Verma  Gunjan Shukla  Arun Kumar Wahi 《Indian journal of clinical biochemistry : IJCB》2008,23(4):356-360

  相似文献   

Pulse-width-modulated speed control of d.c. motors     

V.K. Verma  C.R. Baird  V.K. Aatre 《Journal of The Franklin Institute》1974,297(2):89-101

This paper deals with the analytical and experimental investigations of an open-loop pulse-width-modulated d.c. motor speed control system. The analysis is carried out by two different approaches, circuit approach and the lattice function approach. From the circuit approach, the relationship between the current-ripple-factor and the pulse width is obtained. The lattice function approach yields the relationship between pulse width and the speed variation. There is good correlation between the experimental and theoretical results.  相似文献   

Tools of the profession submission (for AIAEE) European Seminar in Extension Education perspective of a first-time seminar participant     

Satish Verma 《The Journal of Agricultural Education and Extension》2013,19(4):255-258

Abstract

The threats to traditional cultural landscapes and the concomitant demands from society for remedial landscape management represent a new challenge for agricultural education. The research described here examined the extent to which relevant landscape management skills and knowledge are transferred to would-be farmers (if at all) within the Austrian agricultural school system. A plurilateral approach was taken, involving a standardised text evaluation of curricula (as defined in legislative documents), examination of further vocational training programmes for teachers, and investigation of the actual teaching situation in selected schools. This combination of methods produced a comprehensive overview of the situation in agricultural schools and academies with regard to landscape management teaching. The teaching programmes prescribed by law and the actual programmes carried out by teachers were compared with a theoretical ‘best-case’ programme for teaching landscape management, and this revealed considerable shortcomings in current teaching. The research also identified potential constraints to the integration of landscape management elements within the agricultural school system.  相似文献   

Mucosal IgA & IL-1β in Helicobacter pylori Infection     

Ragini Srivastava  Antara Kashyap  Mohan Kumar  Gopal Nath  Ashok Kumar Jain 《Indian journal of clinical biochemistry : IJCB》2013,28(1):19-23

Helicobacter pylori infection stimulates strong local inflammatory and specific IgA antibody production. The influence of antibodies on the bacterial colonization is not clear. Here, we have analysed the association between the mucosal IgA level and IL-1β in various manifestations of the infection seen endoscopically. Antral biopsies of 57 dyspeptic patients were taken for culture, histology and estimation of mucosal levels of anti-H. pylori IgA and IL-1β. Mean mucosal IgA level was higher in patients with normal mucosa compared to all other groups and lower IgA level was associated with higher bacterial density. IL-1β was higher in ulcer patients and suspicious malignancy group as compared to normal group and higher level of IL-1β was associated with higher grades of metaplasia. Present study indicates that local immunity seems to have a protective role against H. pylori infection and higher level of IL-1β induced by the pathogen may be associated with metaplasia and carcinogenesis.  相似文献