Automorphism groups of Grassmann codes

We use a theorem of Chow (1949) on line-preserving bijections of Grassmannians to determine the automorphism group of Grassmann codes. Further, we analyze the automorphisms of the big cell of a Grassmannian and then use it to settle an open question of Beelen et al. (2010) concerning the permutation automorphism groups of affine Grassmann codes. Finally, we prove an analogue of Chow's theorem for the case of Schubert divisors in Grassmannians and then use it to determine the automorphism group of linear codes associated to such Schubert divisors. In the course of this work, we also give an alternative short proof of MacWilliams theorem concerning the equivalence of linear codes and a characterization of maximal linear subspaces of Schubert divisors in Grassmannians.Comment: revised versio

A Survey on Review Based Recommendation System

The advances in internet technology have resulted in the generation of huge amount of data called as Big Data. Recommendation system is a widely used technique for the filtering the huge amount of data and providing recommendations to users according to their interest. Without taking previous user interest into consideration, the traditional recommender system does not provide efficient solutions to the users. In this paper, we introduce recommender system to solve the above-described problems. The proposed recommender system will take into consideration previous user’s interest and active user interest and by calculating similarity it will to provide recommendations to active user

Optimally-balanced Hash Tree Generation in Ad Hoc Networks

Ideally a hash tree is a perfect binary tree with leaves equal to power of two. Each leaf node in this type of tree can represent a mobile node in an ad hoc network. Each leaf in the tree contains hash value of mobile node’s identification (ID) and public key (PK). Such a tree can be used for authenticating PK in ad hoc networks. Most of the previous works based on hash tree assumed perfect hash tree structures, which can be used efficiently only in networks with a specific number of mobile nodes. Practically the number of mobile nodes may not be always equal to a power of two and the conventional algorithms may result in an inefficient tree structure. In this paper the issue of generating a hash tree is addressed by proposing an algorithm to generate an optimally-balanced structure for a complete hash tree. It is demonstrated through both the mathematical analysis and simulation that such a tree is optimally-balanced and can efficiently be used for public key authentication in ad hoc networks

Comparison of conventional and sustained-release formulation of metformin in type 2 diabetics

Background: To investigate the effects of metformin sustained-release (MSR) compared with metformin immediate-release (MIR) on glycaemic control, blood pressure, lipid profile and metabolic parameters like weight, waist circumference in type 2 diabetes.Methods: A prospective, randomized, double blind study was conducted at tertiary healthcare and teaching hospital at Pune, Maharashtra. After obtaining institutional ethical committee approval and written informed consent, 40 newly diagnosed type 2 diabetic patient were randomly assigned to receive metformin immediate release formulation (MIR) 500 mg once 1 week and then twice daily and metformin sustained release formulation (MSR) 500 mg once 1 week and  then 1000mg once daily for 18 weeks. Fasting and post prandial blood glucose level (BGL), HbA1c, blood pressure, lipid profile, weight and waist circumference, were recorded at the start and end of study.Results: Both MIR and MSR significantly decreased fasting; post prandial BGL and HbA1c at 18 weeks. But no significant difference was seen between two groups. Study did not show any effect on blood pressure and on lipid profile. Both formulations decreased obesity as evident by significant reduction in weight and waist circumference. All patients tolerated both formulations of metformin. Though overall incidences of adverse effects are less with sustained release formulation, difference was not significant between two groups.Conclusions: To conclude, both metformin immediate release and sustained release formulations achieved comparable glycaemic control and sustained release formulation would be as effective as immediate release formulation with advantage of being reduce daily intake of tablets

An assessment of pattern of adverse drug reactions of cardiovascular drugs in a tertiary care institute

Background: Cardiovascular disease is very prevalent in India. So, use of cardiovascular drugs is also more. So, it is very important to keep watch on adverse drug reactions. Aim of this study was to assess the pattern of adverse drug reactions (ADRs) reported with cardiovascular drugs in a tertiary care institute.Methods: The study was carried out in medicine department of a tertiary care hospital over a period of one year. Each ADR was analysed for demographic data, causality, relationship between frequency of ADRs and the number of drugs used etc. In statistical analysis Microsoft excel 2013, SPSS software was used.Results: A total of 136 patients, 58 (43%) men and 78 (57%) women, using cardiovascular medications reported ADRs during the entire study period. Total 168 ADRs were reported out of which, Amlodipine (causing headache and edema feet) was the most common drug with 51 (30.3%) ADR’s followed by Enalapril, Aspirin and Isosorbide Dinitrate with 37 (22%), 24 (14.2%), 23 (13.6%) ADRs respectively. Most common ADR was headache (due to amlodipine and Isosorbide di nitrate) affecting 38 (22.62%) cases followed by dry cough 37 (22.02%) cases, edema feet 36 (21.43%), gastritis 24 (14.29%) and 10 (5.95%) of nausea.Conclusions: Monitoring ADRs in patients using cardiovascular drugs is a matter of importance since this class of medicines are mostly used as multidrug therapy and always prone for ADRs

Performance Evaluation of Multiband OFDM and Pulsed OFDM using Matlab Simulation

Abstract In this paper, we describe a approach for reducing the power consumption and complexity of a multiband orthogonal frequency division multiplexing (MB-OFDM

Sludge Management Using PLC.

The PLC is programmable logical controller used for controlling robotic arm through controlling the pneumatic operated valves. The PLC is having the output as well as input module the input module is having signals from sensors and power supply. The output module is gives the signals to pneumatic cylinders. The control panel is a panel in which all the buttons and series of relay, power supply section. Buttons are like start and stop is used to control operational cycle

Retrospective analysis of necropsy findings in patients of H1N1 and their correlation to clinical features

India reported its first case of H1N1 in July 2009 in Pune and since then, the number of reported cases and deaths exploded in India. Since very little data is available about histopathological findings in patients of H1N1 fatal cases in India, a retrospective chart analysis of necropsy findings of 15 cases of 2009 H1N1 fatal cases was performed. Common clinical features were fever, cough , and breathlessness followed by sore throat and rhinorrhea. Common lung findings were mononuclear cell infiltration, thick alveolar septae, intraalveolar hemorrhage . The other findings were congested pulmonary blood vessels, pulmonary edema, cytomegaly, fibrin accumulation and formation of eosinophilic membrane. These findings are suggestive of diffuse alveolar damage ( DAD) and DAD with hemorrhage. All patients who underwent necropsy had radiographic findings suggestive of unilobar or multilobar pneumonia. This clinical finding can be correlated pathologically in these patients as all of them had either polymorphonuclear or mononuclear infiltrate. Furthermore, necrotizing pneumonitis pattern seen on these patients is the likely cause of mortality in these patients. Although clinical ARDS pattern was noted in all these patients, it was well correlated in lung pathology in all these cases