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Search Results: 1 - 10 of 565707 matches for " V.R.S. Dhulipala "
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Sentry Based Intruder Detection Technique for Wireless Sensor Networks
P. Arivubrakan,V.R.S. Dhulipala
Journal of Artificial Intelligence , 2013,
Abstract: Wireless Sensor Networks consist of nodes with sensing, computation and wireless communications capabilities. Energy is the biggest constraint to wireless sensor capabilities. Sensor networks are increasingly being used in many applications where the communication between nodes requires to be protected from intruders. Local monitoring is an efficient mechanism for enhancing the security of multi-hop sensor networks. It can be overcome by the monitoring of the nodes. Many techniques have been proposed in the context of malicious nodes. In the sleep-wake schedule of nodes which are vulnerable to simple attacks and consumes more energy in sensor networks. In this study, a new technique has been introduced that takes part of communication which can be monitored using a sentry node and gathers the information from the neighbouring entity node within its transmission range or until it reach to the destination for providing a secured way of communication.
Correlation between symptoms of the irritable bowel syndrome and the response to the food extract skin prick test
Soares R.L.S.,Figueiredo H.N.,Maneschy C.P.,Rocha V.R.S.
Brazilian Journal of Medical and Biological Research , 2004,
Abstract: The relationship between the irritable bowel syndrome (IBS) and food intolerance is not clear. We studied the cutaneous response to food antigens in 43 volunteers who were students and employees of the Faculty of Medicine of Universidade Federal Fluminense. Subjects were divided into 3 groups after evaluation for Roma II criteria for functional disease of the gastrointestinal tract: group I, 14 volunteers with IBS; group II, 15 volunteers with functional dyspepsia; group III, 14 volunteers without habitual gastrointestinal symptoms. The subjects were submitted to the skin prick test with 9 food antigen extracts, for a total of 387 skin tests (9 per volunteer). Of the 126 tests applied to group I, 24 (19.4%) were positive (a 3-mm wider papule than the negative control) and of the 135 tests applied to group II, 3 (2.3%) were positive. Of the 126 tests applied to group III, 6 (4%) were positive. The number of positive responses obtained in group I (IBS) differed significantly from the other 2 groups (P < 0.01). None of the volunteers with IBS reported intolerance to any isolated food. The higher reactivity to food antigens in group I compared to groups II and III suggests that intestinal permeability may be increased in patients with IBS.
Utiliza??o de fenbendazole e da associa??o febantel, pamoato de pirantel e praziquantel no controle de oxiurídeos em gerbis
Machado, H.H.S.;Gomes, F.F.;Fiuza, V.R.S.;Toledo, R.S.;de Oliveira, F. C.R.;
Arquivo Brasileiro de Medicina Veterinária e Zootecnia , 2007, DOI: 10.1590/S0102-09352007000100045
Abstract: eighteen jirds were equally distributed in two treated and one control groups. the commercial products to the fenbendazole base (10mg) and the association of febantel (1.5mg), pirantel (1.44mg) and praziquantel (0.5mg) were orally administred in the concentration of 0.1ml in each group. the effectiveness of febendazole against oxiurids was 81.8%, 65.0 and 38.7% and for the association of febantel, pirantel and praziquantel was 72.7%, 73.8% and 51.0% on days 7, 14 and 21, respectively. three applications of that dose of the tested medications, within intervals of 10 days, associated to hygiene, are recommended.
Correlation between symptoms of the irritable bowel syndrome and the response to the food extract skin prick test
Soares, R.L.S.;Figueiredo, H.N.;Maneschy, C.P.;Rocha, V.R.S.;Santos, J.M.;
Brazilian Journal of Medical and Biological Research , 2004, DOI: 10.1590/S0100-879X2004000500005
Abstract: the relationship between the irritable bowel syndrome (ibs) and food intolerance is not clear. we studied the cutaneous response to food antigens in 43 volunteers who were students and employees of the faculty of medicine of universidade federal fluminense. subjects were divided into 3 groups after evaluation for roma ii criteria for functional disease of the gastrointestinal tract: group i, 14 volunteers with ibs; group ii, 15 volunteers with functional dyspepsia; group iii, 14 volunteers without habitual gastrointestinal symptoms. the subjects were submitted to the skin prick test with 9 food antigen extracts, for a total of 387 skin tests (9 per volunteer). of the 126 tests applied to group i, 24 (19.4%) were positive (a 3-mm wider papule than the negative control) and of the 135 tests applied to group ii, 3 (2.3%) were positive. of the 126 tests applied to group iii, 6 (4%) were positive. the number of positive responses obtained in group i (ibs) differed significantly from the other 2 groups (p < 0.01). none of the volunteers with ibs reported intolerance to any isolated food. the higher reactivity to food antigens in group i compared to groups ii and iii suggests that intestinal permeability may be increased in patients with ibs.
Avalia??o da degrada??o de macrófitas aquáticas descartadas em ambiente protegido
Cezar, V.R.S.;Villas Boas, R.L.;Corrêa, M.R.;Negrisoli, E.;Velini, E.D.;
Planta Daninha , 2005, DOI: 10.1590/S0100-83582005000200012
Abstract: an experiment was carried out at the department of natural resources - environmental science, unesp, botucatu-sp to evaluate the degradation of aquatic macrophytes discarded in stacks, after mechanical control measures. stacks of 2.25 m3 volume were set up, composed of three species of macrophytes collected from the americana uhe reservoir in sao paulo. stack samples were collected at 15, 30, 60 and 90 days, for temperature monitoring and organic material ph assessment during the process, besides compound chemical analysis at day 90. the treatments were: t1-only aquatic plants with stack revolving every seven days; t2- only aquatic plants revolving every four days; t3- aquatic plants + permagel and revolving every seven days and t4aquatic plants + permagel and revolving every four days. the experiment was arranged in a randomized design, with statistical analysis for collection at day 90, using the sisvar program. results from the study on macro and micronutrients, temperature, moisture, ph, c/n relation and stack volume reduction were similar to those observed with discard was in stacks of 4.5 m3 volume.
Twenty-four-hour esophageal pH monitoring in children and adolescents with chronic and/or recurrent rhinosinusitis
Monteiro, V.R.S.G.;Sdepanian, V.L.;Weckx, L.;Fagundes-Neto, U.;Morais, M.B.;
Brazilian Journal of Medical and Biological Research , 2005, DOI: 10.1590/S0100-879X2005000200009
Abstract: gastroesophageal reflux (ger) disorder was studied in children and adolescents with chronic and/or recurrent rhinosinusitis not associated with bronchial asthma. ten children with a clinical and radiological diagnosis of chronic and/or recurrent rhinosinusitis, consecutively attended at the pediatric otolaryngology outpatient clinic, federal university of s?o paulo, were evaluated. prolonged esophageal ph monitoring was used to investigate ger disorder. the mean age of the ten patients evaluated (eight males) was 7.4 ± 2.4 years. two patients presented vomiting as a clinical manifestation and one patient presented retrosternal pain with a burning sensation. twenty-four-hour esophageal ph monitoring was performed using the sandhill apparatus. an antimony probe electrode was placed in the lower third of the esophagus, confirmed by fluoroscopy and later by a chest x-ray. the parameters analyzed by esophageal ph monitoring included: total percent time of the presence of acid esophageal ph, i.e., ph below 4 (<4.2%); total number of acid episodes (<50 episodes); number of reflux episodes longer than 5 min (3 or less), and duration of the longest reflux episode (<9.2 min). one patient (1/10, 10%) presented a 24-h esophageal ph profile compatible with ger disorder. this data suggest that an association between chronic rhinosinusitis not associated with bronchial asthma and ger disorder may exist in children and adolescents, especially in those with compatible ger disorder symptoms. in these cases, 24-h esophageal ph monitoring should be performed before indicating surgery, since the present data suggest that 10% of chronic rhinosinusitis surgeries can be eliminated.
White Lesions Of The Oral Ca vity -diagnostic appraisal & management strategies
Joshy V.R,Hari S
Oral & Maxillofacial Pathology Journal , 2010,
Abstract: White lesions of the oral cavity constitute a rather common group of lesions that areencountered during routine clinical dental practice. The process of clinical diagnosis and treatmentplanning is of great concern to the patient as it determines the nature of future follow up care.There is a strong felt need for a rational and functional classification which will enable betterunderstanding of the basic disease process as well as in formulating a differential diagnosis. Clinicaldiagnostic skills and good judgment forms the key to successful management of white lesions of theoral cavity.
RCP Supporting Emergency Applications of WSN
Rajkumar S. Sakhare,V.R. Chirchi
International Journal of Computer Technology and Applications , 2012,
Abstract: Wireless sensor networks (WSN) can be used to monitor our environment, objects in that environment and interactions of objects with each other. Use of WSN for emergency applications includes fire detection system in forest, soil motion detection, monitoring historical and public places, volcano monitoring etc. In WSN errors or faults tends to occur frequently due to node mobility or energy shortage (battery limitation). Faults cannot be tolerated in WSN for emergency applications hence fault tolerance is an important issue in network design and thus networks have to be tolerant of error and fault. This paper deals with a Reliable Communication Protocol (RCP) that will be fault tolerant and minimize both signaling overhead and power consumption and also support auto-recovery from failure.
Lack of Power Avoidance: A Fault Classification Based Fault Tolerant Framework Solution for Lifetime Enhancement and Reliable Communication in Wireless Sensor Networks
V.R. Sarma Dhulipala,G.R. Kanagachidambaresan,R.M. Chandrasekaran
Information Technology Journal , 2012,
Abstract: Clustering provides an effective way to improve the lifetime in Wireless Sensor Network (WSN) environment. Clustering protocols in WSN requires optimal grouping for cluster heads which further leads to inter cluster communication in reliable manner. In this study, Lack of Power Avoidance (LoPA) protocol is proposed and evaluated. By using heuristic algorithms, LoPA considers heterogeneous clustering and controls the network parameters significant in low power applications. Reduction in energy consumption using this algorithm is obtained by the use of fault classification methods. Inter cluster communication is made reliable by using conditional utilization of energy of the nodes in various model of operation. Simulation results indicate that the protocol can efficiently decrease the dead speed of the nodes and prolong the network lifetime.
Trust Worthy Architecture Implementation for Mobile Ad hoc Networks
D.Saravanan,,R.M.Chandrasekaran,,B.Vishnu Prabha,,V.R.Sarma Dhulipala
International Journal on Computer Science and Engineering , 2011,
Abstract: A mobile ad hoc network is a wireless communication network that does not rely on a fixed infrastructure and is lack of any centralized control. The wireless and distributed nature of mobile ad hocnetworks poses greater challenges like security, mobility, scalability, reliability and other attributes of trust worthy communication. In this paper we implemented a framework for mobile ad hoc networks by checking the simulation for various service metrics of mobile ad hoc networks. This framework implementation also providesoptimum quality of service metrics, while being readily adaptable to widely differing applications, different hardware and software providers and changing technologies.
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