1,606 research outputs found

    Trust Based Participant Driven Privacy Control in Participatory Sensing

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    Widespread use of sensors and multisensory personal devices generate a lot of personal information. Sharing this information with others could help in various ways. However, this information may be misused when shared with all. Sharing of information between trusted parties overcomes this problem. This paper describes a model to share information based on interactions and opinions to build trust among peers. It also considers institutional and other controls, which influence the behaviour of the peers. The trust and control build confidence. The computed confidence bespeaks whether to reveal information or not thereby increasing trusted cooperation among peers.Comment: 14 page

    Gel-Electrophoresis and Its Applications

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    Ethnomedicinal Observations Among the Kondareddis of Khammam District, Andhra Pradesh, India

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    Ethnomedicinal information of Kondareddis has been collected from Khammam district of Andhra Pradesh, India during 2006-2008. A total of 40 plant species belonging to 39 genera and 31 families were used in traditional medicine to heal different diseases. The present work is an attempt to identify and conserve the medicinal plants in Khammam district. The study shows a high degree of ethnobotanical novelty and the use of plants among the Kondareddis reflects the revival of interest in traditional folk culture

    Design, Synthesis, Characterization of Geminal Bisphosphonates and Bioactivity Evaluation

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    Cancer is a deadly disease evading all human efforts to understand its etiology, prevention, and cure. In cancer, chronic myelogenous leukemia is one type. It is also known as chronic myeloid leukemia. It is a malignant cancer of the myeloid line of cells in the bone marrow that results in the uncontrolled growth of white blood cells in the bone marrow, bloodstream, and body tissues. Colorectal cancer is another type of cancer that occurs in the colon or rectum. Sometimes it is called colon cancer. Management of these cancers is highly difficult. In persuasion of our goal to synthesize cancer active compounds, the author accomplished the synthesis of substituted amino methylene bisphosphonates (3a-j) and studied their antitumor activity. © 2020 Author(s)

    Synthesis and Cytotoxic Activity of Various alkyl 2-{di[(diethoxy phosphoryl) methyl]amino}ester Derivatives

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    We have been synthesized simple, efficient various alkyl 2-{di[(diethoxy phosphoryl) methyl]amino}ester derivatives by reacting amino acid esters 1(a-j), paraformaldehyde and two molar equivalents of diethyl hydrogenphosphonate (2) in tetrahydrofuran at 55-65 °C for 10 hrs. All the compounds 3(a-j) were assessed for cytotoxicity against some important types of human chronic myeloid leukemia cells (K-562) and human colon carcinoma cells (Colo-205) along with noncancerous human embryonic kidney cells (HEK-293). © 2020 Author(s)

    Robustness Study of Fractional Order PID Controller Optimized by Particle Swarm Optimization in AVR System

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    In this paper a novel design method for determining fractional order PID (PIλDµ) controller parameters of an AVR system using particle swarm optimization algorithm is presented. This paper presents how to employ the particle swarm optimization to seek efficiently the optimal parameters of PIλDµ controller. The robustness study is made for this controller against parameter variation of AVR system. This work has been simulated in MATLAB environment with FOMCON (Fractional Order Modeling and Control) tool box.The proposed PSOPIλDµ controller has superior performance and robust compared to GA tuned PIλDµ controller. The results are also compared with PSO tuned PID controller

    Node activity based trust and reputation estimation approach for secure and QoS routing in MANET

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    Achieving safe and secure communication in MANETs is a key challenge due to its dynamic nature. A number of security studies disclose that reputation management systems are able to be effectual with less overhead. The reputation of a node is calculated by using automated assessment algorithms depend on predefined trust scheme. This paper proposes a Node Activity-based Trust and Reputation estimation (NA-TRE) approach for the security and QoS routing in MANET. NA-TRE aims to find trust estimation and reputation of a node. The NA-TRE approach monitors the activity changes, packet forwarding or dropping in a node to find the status of the node. The various activities of a node like Normal State (NS), Resource Limitation State (RS) and Malicious State (MS) are monitored. This status of a node is helpful in computing trust and reputation. In this paper NA-TRE approach compared with existing protocols AODV, FACE and TMS to evaluate the efficiency of MANET. The experiment results show that 20% increasing of throughput, 10% decrease of overhead and end to end delay

    An Opinion Survey of Faculty Members on ICT Facilities in the Libraries of Engineering Colleges Affiliated to JNTU – Anantapur, Andhra Pradesh, India

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    The purpose of the study is to examine the opinions of faculty members on ICT facilities in the libraries of Engineering colleges affiliated to JNTU – Anantapur, Andhra Pradesh, India. Survey method of research is used in the study. Questionnaire tool is used. Data is collected from a simple random sample of 1130 faculty members out of 5272 faculty members belonging to 37 engineering colleges affiliated to JNTU – Anantapur. Analysis of data reveals that most of the faculty members (96.8%) replied that their libraries use computers. Most of them (95.2%) replied that Internet facility is available in their libraries. Most of them (94.9%) replied that they utilize the Internet facility from their libraries. Most of them (95.3%) use Internet for teaching purpose. Majority of the faculty members (73.1%) use Internet daily. All the faculty members (100%) replied that ‘insufficient number of computer systems’ is the reason for not utilizing the Internet facility of their libraries. Majority of the faculty members (69.6%) opined that the ‘Department’ is the most convenient place for Internet browsing. Majority of them (69.2%) replied that their libraries provide OPAC facility. Most of them (78%) replied that digital library is available in their libraries. Majority of the them (56.2%) replied that printing facility is not available in their digital library. Among the faculty members, who replied that printing facility is available in their libraries, most of them (76%) informed that the cost collected for printing is Rs.1/- per page. Most of them (84.2%) replied that the access to NPTEL courseware is provided in their libraries. Majority of them (67.8%) replied that access to MIT open courseware is not provided in their libraries. Finally, a number of recommendations have been made to improve the ICT facilities in the libraries of engineering colleges affiliated to JNTU-Anantapur
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