24 research outputs found

    Pursuit of Genes Active in Defense of Upland Cotton Against Bacterial Blight

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    Biochemistry and Molecular Biolog

    A Survey on Different Techniques Used in Decentralized Cloud Computing

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    Abstract: This paper proposes various methods for anonymous authentication for data stored in cloud. Cloud verifies the authenticity of the series without knowing the user's identity before storing data. This paper also has the added feature of access control in which only valid users are able to decrypt the stored information. These schemes also prevents replay attacks and supports creation, modification, and reading data stored in the cloud. Moreover, our authentication and access control scheme is decentralized and robust, unlike other access control schemes designed for clouds which are centralized. The communication, computation, and storage overheads are comparable to centralized approaches .The aim of this paper is to cover many security issues arises in cloud computing and different schemes to prevent security risks in cloud. Storage-as-a-service (Saas) offered by cloud service providers (CSPs) is a paid facility that enables organizations to outsource their sensitive data to be stored on remote servers. In this paper, we propose a cloudbased storage schemes that allows the data owner to benefit from the facilities offered by the CSP and enables indirect mutual trust between them. This Paper provides different authentication techniques and algorithms for cloud security

    A novel and sensitive agar plug assay for screening of asparaginase-producing endophytic fungi from Aegle marmelos

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    Twelve strains of asparaginase (L-asparagine amidohydrolase, E.C. 3.5.1.1) producing filamentous fungi were isolated from the bark and leaves of Aegle marmelos Linn. In the present study, a new method of isolation and selective screening of asparaginase producing endophytic fungi was developed. Asparaginases producing filamentous fungi were screened by a novel rapid dye based agar plug assay. Agar plug screen is a novel method for efficient screening of large number of fungal isolates. All endophytic fungi could grow on modified Czapek Dox agar medium with phenol red, a dye indicator that changes from yellow (acidic condition) to pink (alkaline condition). This method is not only rapid and cost effective but also less labor intensive and could be efficiently used for isolating high yielding strains

    In-Vitro Antioxidant Activity, Acute Oral Toxicity Studies and Preliminary Phytochemical Characterization of the Bark Extract of Terminalia arjuna (L.)

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    The free radicals and the reactive oxygen species (ROS) are known to induce oxidative stress and it has been implicated in the pathology of cardiovascular diseases, inflammatory conditions, cancer and ageing. The activities associated with ROS can bedelayed, prevented or removedby antioxidant compounds (natural or synthetic). The use of synthetic antioxidants restricted because of their known side effects such as liver damage and carcinogenesis. The aim of this study to evaluate in vitro antioxidant and acute oral toxicity of Terminalia arjuna extracts. The present finding reveals that the purified fraction at100 ”g/ml, showed maximum (91.32 ± 0.10 %,) DPPH radical scavenging effect in comparison with standard ascorbic acid (79.46 ± 0.10%) at the 10 ”g/ml concentration. The reducing power of the purified extract was found to be dose dependent. Food and water intake of the animals in test and control groups was found normal during the 14 day acute oral toxicity studies and no apparent changes were observed in the internal organs of both, the test and control groups, after gross necropsy. The preliminary phytochemical screening of the crude acetone extract revealed dominant presence steroids, terpenoids, polyphenols, alkaloids and tannins. TLC profile of the purified fraction revealed a single band of Rf 0.38, a characteristic feature of triterpenoids. The UV absorption maximum of the purified fraction was recorded at 194nm. The FT-IR spectrum indicated presence of aromatic rings 3421 (COOH), 2957 (alkanes, CH2 and CH3), 1726 (carbonyl), 1599 (carboxylic acid), and region between 1000-1300 stretching of C-O, ester and ether carboxylic group. Thus, the isolated bioactive phytoconstituents form the bark extract of Terminalia arjuna could be used as natural anti-oxidants.

    Dynamic Real-time Classification of Data Streams

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    To develop real time classification from high throughput of data stream (dynamic data) is one of the most challenging areas of big data analysis. In this proposed system we are using concept drift. (Changes of the pattern encoded in the stream over time). And imposes unique challenges in comparison with real time classification data mining from dynamic data. Several real-time classifications of data stream algorithms exist. The proposed system highlights the Fixed Width clustering, variable width calculation and global width clustering for data stream classifier. The result of these algorithms provides high accuracy, less time & high speed

    Causes, epidemiology, and long-term outcome of traumatic cataracts in children in rural India

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    Purpose : To describe preoperative factors, long-term (>3 years) postoperative outcome and cost of traumatic cataracts in children in predominantly rural districts of western India. Subjects : Eighty-two traumatic cataracts in 81 children in a pediatric ophthalmology department of a tertiary eye-care center. Materials and Methods : Traumatic cataracts operated in 2004-2008 were reexamined prospectively in 2010-2011 using standardized technique. Cause and type of trauma, demographic factors, surgical intervention, complications, and visual acuity was recorded. Statistical Analysis : Data analysis done by using SPSS (Statistical package for social sciences) version 17.0 We have used Chi-square test, Fisherâ€Čs exact test, paired t-test to find the association between the final vision and various parameters at 5% level of significance; binary logistic regression was performed for visual outcome ≄6/18 and ≄6/60. Results : The children were examined in a 3-7 year follow-up (4.35 ± 1.54). Average age at time of surgery was 10.4 ± 4.43 years (1.03 to 18). Fifty (61.7%) were boys. Forty (48.8%) were blunt and 32 (39%) were sharp trauma. The most common cause was wooden stick 23 (28.0%) and sharp thorn 14 (17.1%). Delay between trauma and presentation to hospital ranged from same day to 12 years after the injury with median of 4 days. The mean preoperative visual acuity by decimal notation was 0.059 ± 0.073 and mean postoperative visual acuity was 0.483 ± 0.417 (P < 0.001). Thirty-eight (46.3%) had best corrected visual acuity (BCVA) ≄6/18 and 51 (62.2%) had BCVA ≄ 6/60. In univariable analysis, visual outcome (≄6/18) depended on type of surgery (P = 0.002), gender (P = 0.028), and type of injury (P = 0.07)-sharp trauma and open globe injury had poorer outcomes; but not on age of child, preoperative vision, and type of surgeon. On multivariable binary logistic regression, only gender was significant variable. Of the 82 eyes, 18 (22%) needed more than one surgery. The parents spent an average of Rs. 2250 ($45) for the surgery and 55 (66.4%) were from lower socio-economic class. Conclusion : The postoperative visual outcomes varied and less than half achieved ≄ 6/18

    Revisiting the therapeutic potential of homeopathic medicine Rhus Tox for herpes simplex virus and inflammatory conditions

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    Background: Herpes simplex virus type-1 and type-2 cause a viral disease named Herpes. Genital herpes is mainly caused by HSV-2 with symptoms of painful and itchy blisters on the vagina, cervix, buttocks, anus, penis, or inner thighs with blisters that rupture and convert into sores. The homeopathic remedy Rhus Tox has been widely used to treat herpes and has shown in vitro anti-inflammatory effects in previous studies. Purpose: The presented review focuses on relapses and harmful effects caused by acyclovir in modern medicine and the probable antiherpetic activity of Rhus Tox on HSV infection based on its pathophysiology, preclinical findings, on primary cultured mouse chondrocytes, mouse cell line MC3T3e1 and a comparative study of Natrum Mur with Rhus Tox on HSV infection. Study design: The design of the study focuses mainly on the descriptive data available in various literature articles. Method: Databases such as PubMed, Google Scholar, Medline and ScienceDirect were used to search the articles. Articles are selected from 1994 to 2022 focusing solely on the competence of Rhus Tox against herpes. Keywords used for the study are antiviral, Herpes, Rhus Tox, in vitro and homeopathy. Results: The review includes fifteen articles, including 4 full-text articles on HSV, 6 in vitro studies of homeopathic compounds performed on the herpes virus, and 5 articles based on the pathophysiology and effects of Rhus tox. The review article proposes the anti-inflammatory and antiviral action of the homeopathic remedy Rhus Tox which can be used in crisis conditions when the physician doubts the simillimum, as it prevents further outbreaks of HSV infection. Conclusion: The homeopathic medicine Rhus Tox has no cytotoxicity observed under in vitro conditions and can be used to treat herpes infection. Further studies are needed to confirm the results under in vitro and in vivo conditions as well as in clinical trials
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