150 research outputs found

    Balancing between data utility and privacy preservation in data mining

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    Data Mining plays a vital role in today‟s information world where it has been widely applied in various organizations. The current trend needs to share data for mutual benefit. However, there has been a lot of concern over privacy in the recent years .It has also raised a potential threat of revealing sensitive data of an individual when the data is released publically. Various methods have been proposed to tackle the privacy preservation problem like anonymization and perturbation. But the natural consequence of privacy preservation is information loss. The loss of specific information about certain individuals may affect the data quality and in extreme case the data may become completely useless. There are methods like cryptography which completely anonymize the dataset and which renders the dataset useless. So the utility of the data is completely lost. We need to protect the private information and preserve the data utility as much as possible. So the objective of the thesis is to find an optimum balance between privacy and utility while publishing dataset of any organization. Privacy preservation is hard requirement that must be satisfied and utility is the measure to be optimized. One of the methods for preserving privacy is K-anonymization which also preserves privacy to a good extent. K-anonymity demands that every tuple in the dataset released be indistinguishably related to no fewer than k respondents. We used K-means algorithm for clustering the dataset and followed by k-anonymization. Decision stump classification is used to determine utility and privacy is determined by firing random queries on the anonymized dataset. The balancing point is where the utility and privacy curves intersect or they tend to converge. The balancing point will vary from dataset to dataset and the choice of Quasi-identifier and sensitive attribute. For our experiment the balancing point is found to be around 50-60 percent which is the intersecting point of privacy and utility curves

    An Integrated Approach For Energy Efficient Routing Over Ad-Hoc Network Using Soft Computing

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    In the past few years, wireless communication has grown rapidly. Through these greatest feature is provided by the network without wires. Handheld devices and any user can take their place. They benefit from a small device, the long-lasting battery. The new communication standard for high-bandwidth services. For communication, the fixed network infrastructure through such is not necessary. These self-organizing network (Ad hoc networks) has received a massive interest in recent times. The most common application of wireless networks is set standard for mobile communications (GSM) and wireless local area network (WLAN). Node is not arranged in any particular manner in such a network. Therefore, in order to ensure communication between the nodes, a number of routing protocols have been developed for such a network. In this proposed system we design the network on adoc network those have some node and we will use the artificial neural network for the training and testing the network. In this system we will give the input neuron value and set a bias value for the purpose of training of network to improve the efficiency of network. After the number of training session in network we get the less energy consumption in that particular network. The objective of this paper work, the process of the minimum number of hops through the use of physical layer information instead of the default distance vector algorithm proposed amendments after AODV routing protocol version based routing discovery

    MEDICINAL PLANTS WITH NEUROPHARMACOLOGICAL PROPERTIES FROM INDIAN ORIGIN

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    Neuropharmacology is the scientific study of the effects of drugs on the central nervous system. Its primary focus is actions of medications for psychiatric and neurologic disorders as well as those of drugs of abuse. The goal of Neuropharmacology is to apply information about drugs and their mechanisms of action, develop safer and more effective treatments and eventually curative and preventive measures for a host of nervous system abnormalities. There are a number of drugs being used in the traditional medicine for treatment of various CNS disorders and presently many of these drugs are being explored scientifically to ascertain their CNS activities. Significant number of studies has been performed to find alternative treatment for diseases of the nervous forum by identifying structures with activity at the central nervous system. However, most of the screenings are usually conducted on an ad hoc basis and not systematically. The initial purpose of this review is to summarize plants with neuropharmacological activities, in particular, those that have not been fully studied and that have molecular mechanisms whose active constituents are responsible for the activities remained to be identified. The second purpose was to identify potential target plants for future studies of new and alternative therapies for the treatment of neurological disorders and neurodegenerative diseases

    Impact of serum magnesium levels in critically ill elderly patients—A study in a rural teaching hospital

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    AbstractBackground/PurposeMagnesium deficiency has been a common, but easily ignored, electrolyte abnormality. Studies on magnesium deficiency are lacking in India, especially in a rural setting. Here, we have correlated serum magnesium levels with outcomes in elderly patients admitted to the medical intensive care unit with respect to the length of intensive care unit stay, need for mechanical ventilatory support and its duration, and outcome (discharge/death).MethodsA prospective, observational study was conducted in patients aged 60 years and older, who had been admitted to the intensive care unit of the medicine department for over a year. The chi-square test was applied to correlate hypomagnesemia with the outcome.ResultsIn our study, 59.30% of the elderly patients had hypomagnesemia. Compared with patients with a normal magnesium level, hypomagnesemic patients had no correlation with the duration of medical intensive care unit stay (5.57±6.10 days vs. 5.61±5.55 days), but the need for mechanical ventilation (57.84% vs. 45.71%), rate of discharge from the intensive care unit or cure (60.28% vs. 71.42% ), rate of death (39.21% vs. 28.57%), and mean duration of ventilation (3.07±5.05 days vs. 2.15±3.46 days) were higher. However, no significant statistical difference was found between these groups.ConclusionHypomagnesemia was associated with a slightly higher mortality rate. Requirement and duration of ventilatory support were also higher, although not statistically significant. Hypomagnesemia was not found to have any impact on the duration of medical intensive care unit stay. Monitoring of serum magnesium levels may have prognostic and perhaps therapeutic implications in the elderly

    Silver-Russell Syndrome: A Case Report

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    A 15-year-old male boy with hemihypertrophy (left side) of the body was admitted in the hospital with the history of repeated attacks of convulsion. The patient was diagnosed as Silver-Russell syndrome on clinical ground. Silver-Russell syndrome (SRS) is a very rare genetic disorder that appears no later than early childhood. This is usually characterized by asymmetry in the size of the two halves or other parts of the body. Silver-Russell Syndrome occurs mostly in isolated cases because of sporadic genetic changes (mutations) for no apparent reason. For lack of facilities we were not able to do genetic study

    Automatic Railway track Inspection for early warning using Real time image Processing with GPS

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    Railroad assessment assumes an indispensable part for the correct working of the rail line frameworks; in the past its done manual investigation yet has a few ambiguities. Modified vision based audit systems are engaged to look at the stipulation of rail track. Thusly system fabricates the capability of audit, reduces the required time and giving a more exact and ceaseless information of the railroad track. To give the continuous screens and assistant condition for railroad track using "vision based" and "vibration based" strategy for wellbeing reason. Thusly we can bolster exactness, adequacy and steadfastness. PC vision frameworks have been especially made to be used with the model. The structure delineated in this suggestion makes use of different standard and balanced picture get ready systems, not simply to facilitate the necessities for manual examinations, furthermore to allow steady checking and taking after of any blemishes or varieties from the standard in a rail track. Hereafter to keep up a vital separation from deferments, our propose structure will thusly survey the railroad track by using vision based and vibration based technique. The system gives continuous watching and essential condition for railroad track using vision based procedure and change in accordance with look for the inadequacy range on the track. An examination join perceiving disfigurements on tracks, missing shocks, stay, tie plate and fastens et cetera

    ANTIOXIDANT AND ANTIFUNGAL ACTIVITY OF SOME MEDICINAL PLANT EXTRACTS

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    In this study, the antioxidant and antifungal activities of extracts of Tabernaemontana alternifolia, Thuja occidantalis and Cajanus cajan were recognized. Total yields, radical scavenging activity and the antioxidant property of the extracts were investigated. The free radical scavenging activities of extract was documented as 41.3 ± 2.1 to 76.9 ± 6.1%, likewise. The antioxidant capacity of extracts was recognized between 153.4 ± 10.1 to 336.7 ± 24.2 mg/g extract. This extract was explored for antifungal activity by paper disc method against 2 fungi by using flucanazole as a standard drug. The 0.5 % level of Tabernaemontana alternifolia extract exhibited 100% inhibition till the 7th day of incubation when compare to control (Ascorbic acid). Statistical variances within fungi were significant at p<0.05. The extract was to some extent effective against all the fungi used in experiment

    Myocardial Infarction in a Young Female with Palindromic Rheumatism: A Consequence of Negative Remodeling

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    Palindromic rheumatism is a rare disease associated with systemic inflammation. Negative or constrictive coronary artery remodeling is typically not seen until the 7th or 8th decade of life. We report a case of a young female with palindromic rheumatism who suffered a non-ST segment elevation myocardial infarction secondary to a flow-limiting lesion that demonstrated negative remodeling by intravascular ultrasound (IVUS)

    Analysis of effect of Minimum Quantity Lubrication on different machining parameters Cutting Force, Surface Roughness and Tool Wear by Hard Turning of AISI-4340 Alloy Steel a Review

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    ABSTRACT This paper deals with the study of various machining process and show the effect of different cutting parameters on the properties of material. There are several important factors in the product quality which are surface finish, cutting temperature, tool life and coolant quality. The use of coolant generally causes life of tools and it also maintains work piece surface properties without damages. There are some negative effects and cutting fluid wastes in industries. In this paper, attention is focused on minimum quantity lubrication and recent work and some outcomes of machining factors from minimum quantity lubrication are presented. The review of the literature suggests that minimal fluid application provides several benefits in machining. It has been found that hardened alloy steel like AISI 4340 is known to be difficult to cut and a little knowledge is available in use of MQL for cooling. The main objective of the study of MQL is to reduce the surface roughness during machining and machining cost of cutting fluid. The minimum quantity lubrication also affects the surface finishing, reduce tool wear and reduce the cutting force. This paper provides a review of present work and some limitations of conventional cutting fluid machining and growing opportunities for development of the next generation MQL in machining operations

    Evaluation of Antidiarrheal Activity of Methanolic Extract of Daemia extensa R. Br. Seeds

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    Diarrhea is one of the most general causes for thousands of deaths each year. Consequently, identification of new source of antidiarrheal drugs becomes one of the most prominent focuses in modern research. Our aim was to investigate the antidiarrheal activity of methanolic extract of Daemia extensa R. Br. (MEDE) leaves in rats. Antidiarrheal effect was evaluated by using castor oil-induced diarrhea at 200 mg/kg and 400 mg/kg body weight in rats where the extract showed considerable antidiarrheal effect by inhibiting 49.47% and 62.85% of diarrheal period at the doses of 200 and 400mg/kg, correspondingly These observed effects are comparable to that of standard drug loperamide (5mg/kg). So these results indicate that bioactive compounds are present in methanolic extract of Daemia extensa leaves including significant anti-diarrheal activity and could be accounted for pharmacological effects
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