55 research outputs found

    Simple and NaĂŻve Techniques for Backdoor Elimination in RCA

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    World is rapidly going to be digitalized and security is major challenge in digital world. Digital data should be protected against bad natured users. Number of system has come up with different solutions, some of them adopting response computation authentication. In Response Computation Authentication System, system calculates users response and if it matches with system expected value then system authenticates user. Response computation system authenticates user independently. In RCA bad natured developer have plant backdoor to avoid regular authentication procedure. Developer can add some delicate vulnerability in source code or can use some insufficient cryptographic algorithm to plant backdoor. Because of insufficient cryptographic algorithm it is very difficult to detect and eliminate backdoor in RCA. Here proposed system provides solution to check whether any system contain any backdoor or not? Login module is divided into number of components and component having simple logic are checked by code review and component which contains cryptography are sandboxed. DOI: 10.17762/ijritcc2321-8169.150613

    Late Semantic Fusion Approach for the Retrieval of Multimedia Data

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    In Multimedia information retrieval late semantic fusion is used to combine textual pre-filtering with an image re-ranking. Three steps are used for retrieval processes. Visual and textual techniques are combined to help the developed Multimedia Information Retrieval System to minimize the semantic gap for given query. In the paper, different late semantic fusion approaches i.e. Product, Enrich, MaxMerge and FilterN are used and for experiments publicly available ImageCLEF Wikipedia Collection is used. DOI: 10.17762/ijritcc2321-8169.150610

    DISEASE REVIEW AND MANAGEMENT OF AMAVATA THROUGH AYURVEDIC CLASSIC’S.

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    Ayurveda is hope for suffering humanity in today’s world where no one found complete treatment solution for commonest chronic inflammatory joint disease Amavata (Rheumatoid Arthritis). This causes swelling, pain and stiffness of joints. Chronic condition may cause debility, deformities of joints and crippling. Unfortunately the man has not succeeded in eradicating this diseases and find to come out with successful therapeutic measures that can cure the patient completely.  Amavata is made up of two words, Ama & Vata. Ama means incomplete digestion of food which result in incomplete/impure formation of Annarasa, circulate in body & reach to target cell where it produces pathology like heaviness in body, loss of strength, drowsiness, aggravation of Vata & improper elimination of waste product. Ayurveda says chikitsa (Treatment) is Nidaan Parimarjna (removal of cause). The clinical presentation of Amavata closely mimics with the special variety of Rheumatological disorders called Rheumatoid Arthritis in accordance with their similarities on clinical features like pain, swelling, stiffness, fever, redness, general debility, fatigue are almost identical to that of Amavata. It is a severe form of chronic inflammatory autoimmune systemic disorders which mainly affects the synovial joints. sometimes leads to destruction and ankylosis of affected joints along with substantial loss of functioning and mobility. The available treatment modalities in contemporary science is NSAIDS, DMRDS, steroids etc. but these drugs are related with hazardous side effects and remission is very big problem. The ancient Ayurvedic treatment not only devoid such type of ill effect, but also provides a better way by treating Agni and Ama at its roots. Shamana (conservative) and Shodhana (biological purification of the body) treatments are advised in Ayurveda

    A survey on Response Computaion Authentication techniques.

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    as we know the problems regarding data and system security are challenging and taking attraction of researchers. Although there are many techniques available which offers protection to systems there is no single Method which can provide full protection. As we know to provide security to system authentication in login system is main issue for developers. Response Computable Authentication is two way methods which are used by number of authentication system where an authentication system independently calculates the expected user response and authenticates a user if the actual user response matches the expected value. But such authentication system have been scare by malicious developer who can bypass normal authentication by covering logic in source code or using weak cryptography. This paper mainly focuses on RCA system to make sure that authentication system will not be influenced by backdoors. In this paper our main goal is to take review of different methods, approaches and techniques used for Response Computation Authentication

    Multimedia Retrieval: Survey Of Methods And Approaches

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    As we know there are numbers of applications present where multimedia retrieval is used and also numbers of sources are present. So accuracy is the major issue in retrieval process. There are number of techniques and datasets available to retrieve information. Some techniques uses only text-based image retrieval (TBIR), some uses content-based image retrieval (CBIR) while some are using combination of both. In this paper we are focusing on both TBIR and CBIR results and then fusing these two results. For fusing we are using late fusion. TBIR captures conceptual meaning while CBIR used to avoid false results. So final results are more accurate. In this paper our main goal is to take review of different methods and approaches used for Multimedia Retrieval

    Alterations in endogenous progesterone metabolism associated with spontaneous very preterm delivery

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    Study question: Do maternal serum levels of progesterone metabolites early in pregnancy correspond to an increased risk for very preterm delivery prior to 32 weeks? Summary answer: Maternal serum levels of 11-deoxycorticosterone (DOC) measured during the late first trimester or early second trimester correlate with an increased risk for preterm delivery prior to 32 weeks, and the correlation becomes stronger when the ratio of DOC to 16-alpha-hydroxyprogesterone was measured. What is known already: Progesterone is a pro-gestational steroid hormone that has been shown to decrease the risk of preterm birth in some pregnant women. Progesterone is metabolized by the body into various metabolites including members of the mineralocorticoid and glucocorticoid families. Our group has previously demonstrated that some progesterone metabolites enhance myometrial contractility in an ex vivo system, while others result in myometrial relaxation. The current exploratory study was designed to determine if pre-specified metabolites of progesterone measured early in pregnancy were associated with a woman's risk for delivery prior to 32 weeks, which is referred to as a very preterm delivery. Study design size duration: The Building Blocks of Pregnancy Biobank (BBPB) is a biorepository at Indiana University (IU) that follows women prospectively through their pregnancy. A variety of biospecimens are collected at various time points during a woman's pregnancy. Women participating in the IU BBPB who were enrolled after 8 weeks' gestation with pregnancy outcome data were eligible for participation. Participants/materials setting methods: Women delivering prior to 37 weeks (preterm) and at or after 37 weeks (term) who had blood samples collected during the late first trimester/early second trimester and/or during the early third trimester were identified. These samples were then processed for mass spectroscopy, and the amount of progesterone and progesterone metabolites in the samples were measured. Mean values of each measured steroid metabolite were calculated and compared among women delivering at less than 32 weeks, less than 37 weeks and greater than or equal to 37 weeks. Receiver operating characteristic (ROC) curves were constructed and threshold levels determined for each compound to identify a level above or below which best predicted a woman's risk for delivery prior to 32 and prior to 37 weeks. Mann-Whitney U nonparametric testing with Holm-Bonferroni correction for multiple comparisons was utilized to identify steroid ratios that could differentiate women delivering spontaneously at less than 32 weeks from all other pregnancies. Main results and the role of chance: Steroid hormone levels and pregnancy outcome data were available for 93 women; 28 delivering prior to 32 weeks, 40 delivering between 32 0/7 and 36 6/7 weeks and 25 delivering at or greater than 37 weeks: the mean gestational age at delivery within the three groups was 27.0, 34.4 and 38.8 weeks, respectively. Among women delivering spontaneously at less than 37 weeks, maternal 11-deoxycorticosterone (DOC) levels drawn in the late first trimester/early second trimester were significantly associated with spontaneous preterm delivery prior to 32 weeks; a threshold level of 47.5 pg/ml had 78% sensitivity, 73% specificity and an AUC of 0.77 (P = 0.044). When DOC levels were analyzed as a ratio with other measured steroid hormones, the ratio of DOC to 16-alpha-hydroxyprogesterone among women delivering spontaneously prior to 37 weeks was able to significantly discriminate women delivering prior to 32 weeks from those delivering at or greater than 32 weeks, with a threshold value of 0.2 with 89% sensitivity, 91% specificity and an AUC of 0.92 (P = 0.002). When the entire study cohort population was considered, including women delivering at term and women having an iatrogenic preterm delivery, the ratio of DOC to 16-alpha-hydroxyprogesterone was able to discriminate women delivering spontaneously prior to 32 weeks from the rest of the population at a threshold of 0.18 and 89% sensitivity, 59% specificity and an AUC of 0.81 (P = 0.003). Limitations reasons for caution: This is a discovery study, and the findings have not been validated on an independent cohort. To mitigate issues with multiple comparisons, we limited our study to pre-specified metabolites that are most representative of the major metabolic pathways for progesterone, and adjustments for multiple comparisons were made. Wider implications of the findings: Spontaneous preterm birth is increasingly being recognized to represent a common end pathway for a number of different disease phenotypes that include infection, inflammation, premature rupture of the membranes, uterine over distension, cervical insufficiency, placental dysfunction and genetic predisposition. In addition to these phenotypes, longitudinal changes in the maternal-fetal hypothalamic-pituitary-adrenal (HPA) axis also likely contribute to a significant proportion of the disease burden of spontaneous preterm birth. Here, we demonstrate that differential production of steroid metabolites is associated with very early preterm birth. The identified biomarkers may hint at a pathophysiologic mechanism and changes in the maternal-fetal dyad that result in preterm delivery. The early identification of abnormal changes in HPA axis metabolites may allow for targeted interventions that reverse the aberrant steroid metabolic profile to a more favorable one, thereby decreasing the risk for early delivery. Further research is therefore required to validate and extend the results presented here. Study funding/competing interests: Funding for this study was provided from the Office of the Vice Chancellor for Research at IUPUI, 'Funding Opportunities for Research Commercialization and Economic Success (FORCES) grant'.Both A.S.P. and C.A.G. are affiliated with Nixxi, a biotech startup. The remaining authors report no conflict of interest

    Efficient Deep-Web-Harvesting Using Advanced Crawler

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    Due to heavy usage of internet large amount of diverse data is spread over it which provides access to particular data or to search most relevant data. It is very challenging for search engine to fetch relevant data as per user’s need and which consumes more time. So, to reduce large amount of time spend on searching most relevant data we proposed the “Advanced crawler”. In this proposed approach, results collected from different web search engines to achieve meta search approach. Multiple search engine for the user query and aggregate those result in one single space and then performing two stages crawling on that data or Urls. In which the sight locating and in-site exploring is done f or achieving most relevant site with the help of page ranking and reverse searching techniques. This system also works online and offline manner

    Impact of Occupational Stress and Its Associated Factors on Cognitive, Hormonal and Stress Responsive Protein in Mining Based Industrial Workers

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    Rapid globalization and technological advances have transformed the way of working. Occupational stress is psychological and physical condition that has potential to worsen a person’s health in any workplace. Stress related productivity impairment were common in mining industries. Lack of skills, organizational issues, and a social support at workplace can all cause workers to experience stress. Therefore, hypothalamus-pituitary-adrenal (HPA) axis and sympathetic nervous system are activated as part of the body’s physiological reaction. Hence chronic stress were linked to digestive, cardiovascular, atherosclerosis, and neurological issues. Numerous studies reported, several biochemical and pathophysiological factors were responsible for occupational, environmental, and workplace depression. This review chapter were included studied from PubMed, Google, book chapters, case reports, and other electronic databases, etc. Total (n = 104) articles were selected related to occupational stress and its impact on biochemical and pathophysiological were experienced in them. Workers who experienced occupational stress underwent pathophysiological changes that leads to changes in the stress hormones, sensitive stress protein and other significant variables. Finally, cortisol, stress hormones, PTH, HO-1, cytokines used as a panel of marker for stressful conditions evaluation in occupational settings. These findings, advice interventions that will be reduce, or eradicate some of these stressors in occupational settings

    Screening of different Fusarium species to select potential species for the synthesis of silver nanoparticles

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    Eleven different Fusarium species were isolated from various infected plant materials and screened to select a potential species for the synthesis of silver nanoparticles. All the isolates were identified on the basis of cultural and microscopic characteristics using Fusarium identification keys. For the confirmation of preliminary identified isolates of Fusarium species, online BLAST analysis was carried out. All the eleven species demonstrated the ability for synthesis of silver nanoparticles. This was confirmed by UV-Vis spectroscopy, which gave characteristic peak around 420 nm. Further confirmation of silver nanoparticles was carried out using nanoparticles tracking analysis (NTA), zeta potential, photon correlation spectroscopy (PCS), powder X-ray diffractometry (XRD) and transmission electron microscopy (TEM). The smallest size of silver nanoparticles was synthesized by F. oxysporum (3-25 nm) and largest size silver nanoparticles were synthesized by F. solani (3-50 nm).Onze diferentes espécies de Fusarium foram isoladas a partir de vários materiais vegetais infectados e selecionados para escolher uma espécie potencialmente importante para a síntese de nanopartículas de prata. Todos os isolados foram identificados com base nas características de cultivo e microscópicas usando as chaves de identificação de Fusarium. Para a confirmação e identificação preliminar dos isolados de espécies de Fusarium, a análise BLAST on-line foi utilizada. Das espécies isoladas onze mostraram a capacidade para a síntese de nanopartículas de prata. A síntese de nanopartículas de prata foi confirmada por espectroscopia de UV-Vis que monstrou um pico característico em torno de 420 nm. Além disso, a confirmação da síntese de nanopartículas de prata foi realizada utilizando a análise de rastreamento de nanoparticulas (nanoparticle tracking analysis-NTA), medidas de potencial zeta, espectroscopia de correlação de fótons (PCS), difratometria de raios X de pó (XRD), e microscopia eletrônica de transmissão (TEM). As menores nanopartículas de prata foram sintetizadas por F. oxysporum (3-25 nm), enquanto as maiores foram obtidas com F. solani (3-50 nm).19741982Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq
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