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    Virendra Kumar Gupta, 85

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    , Virendra Kumar 2

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    Even though passwords are the most convenient means of authentication, they bring along themselves the threat of dictionary attacks. Dictionary attacks may be of two kinds: online and offline. While offline dictionary attacks are possible only if the adversary is able to collect data for a successful protocol execution by eavesdropping on the communication channel and can be successfully countered using public key cryptography, online dictionary attacks can be performed by anyone and there is no satisfactory solution to counter them. This paper presents a new authentication protocol which is called CompChall (computational challenge). The proposed protocol uses only one way hash functions as the building blocks and attempts to eliminate online dictionary attacks by implementing a challenge-response system. This challenge-response system is designed in a fashion that it does not pose any difficulty to a genuine user but is time consuming and computationally intensive for an adversary trying to launch a large number of login requests per unit time as in the case of an online dictionary attack. The protocol is stateless and thus less vulnerable to DoS (Denial of Service) attacks. 1

    KUTAJADI RASAKRIYA - A POLYHERBAL FORMULATION FOR MANAGEMENT OF RAKTARSHA (BLEEDING PILES) –A REVIEW STUDY

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    Dr. Alok Kumar Nirala*, Dr. Virendra Kumar Lahari, Dr. Balendra Singh, Dr. Uttam Kumar Nirmalka

    REVIEW ARTICLE: KHARSUTRA PREPARATION TECHNIQUES & APPLICTION

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    Virendra Kumar Lahari*, Alok Kumar Nirala Balendra Singh and Uttam Kumar Nirmalka

    Going Beyond Counting First Authors in Author Co-citation Analysis

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    The present study examines one of the fundamental aspects of author co-citation analysis (ACA) - the way co-citation counts are defined. Co-citation counting provides the data on which all subsequent statistical analyses and mappings are based, and we compare ACA results based on two different types of co-citation counting - the traditional type that only counts the first one among a cited work's authors on the one hand and a non-traditional type that takes into account the first 5 authors of a cited work on the other hand. Results indicate that the picture produced through this non-traditional author co-citation counting contains more coherent author groups and is therefore considerably clearer. However, this picture represents fewer specialties in the research field being studied than that produced through the traditional first-author co-citation counting when the same number of top-ranked authors is selected and analyzed. Reasons for these effects are discussed

    Anti cancer Activity of Vitamin C Against Leukemia A Review

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    Leukemia is a gathering of malignancy began from bone marrow and will deliver impact on white platelet which will thus lead to anomaly. Presently the development of impact will continue by the undeveloped and juvenile WBC. Leukemia is an expansive term covering a range of infections. The focal point of enthusiasm for oncology especially in leukemia vitamin C has the best technique by which it demonstrates the more noteworthy outcome. An undeveloped cell takes amazingly elevated amounts of Ascorbic acid, which at that point allot their capacity and subdue the improvement of leukemia. Vitamin C levels manage HSC numbers and capacity. At the point when ascorbate levels are reduced, it can give the power to the deactivation of a catalyst called Tet2. The inactivation of TET2 is represented by change and insufficiency of vitamin C may constrain Tet2 work in tissues in a way that builds the danger of leukemia. TET2 function is actually strengthen by ascorbate level. By encouraging DNA demethylation, tremendous dose of ascorbate treatment can persuade stem cells to develop and the growth of cancerous stem cells will retarded by the tremendous dose of ascorbate level as investigated in mice. Tremendous dose of ascorbate might become a safe treatment for blood diseases caused by TET2 deficient leukemia stem cells, most likely in combination with other targeted therapies. Tarun Gupta | Virendra Kumar Vishwakarma | Manoj Kumar Maurya | Khushdil Khan "Anti-cancer Activity of Vitamin-C Against Leukemia: A Review" Published in International Journal of Trend in Scientific Research and Development (ijtsrd), ISSN: 2456-6470, Volume-2 | Issue-4 , June 2018, URL: https://www.ijtsrd.com/papers/ijtsrd14250.pd

    Variations on the Author

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    “Variations on the Author” discusses two of Eduardo Coutinho’s recent films (Um Dia na Vida, from 2010, and Últimas Conversas, posthumously released in 2015) and their contribution to the general question of documentary authorship. The director’s filmography is characterized by a consistent yet self-effacing form of authorial self-inscription: Coutinho often features as an interviewer that rather than express opinions propels discourses; an interviewer that is good at listening. This mode of self-inscription characterizes him as an author who is not expressive but who is nonetheless markedly present on the screen. In Um Dia na Vida, however, Coutinho is completely absent form the image, while Últimas Conversas, on the contrary, includes a confessional prologue that moves the director from the margins to the center of his films. This article examines the ways in which these works stand out in the filmography of a director who offers new insights into the notion of cinematic authorship

    Appropriate Similarity Measures for Author Cocitation Analysis

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    We provide a number of new insights into the methodological discussion about author cocitation analysis. We first argue that the use of the Pearson correlation for measuring the similarity between authors’ cocitation profiles is not very satisfactory. We then discuss what kind of similarity measures may be used as an alternative to the Pearson correlation. We consider three similarity measures in particular. One is the well-known cosine. The other two similarity measures have not been used before in the bibliometric literature. Finally, we show by means of an example that our findings have a high practical relevance.information science;Pearson correlation;cosine;similarity measure;author cocitation analysis
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