3,384 research outputs found

    Light-cone gravity in AdS4_{4}

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    We obtain a closed form expression for the Action describing pure gravity, in light-cone gauge, in a four-dimensional Anti de Sitter background. We perform a perturbative expansion of this closed form result to extract the cubic interaction vertex in this gauge.Comment: 11 page

    Semi analytical solution of MHD Non-aligned Stagnation-point flow of Nanofluid over a Stretching Surface in a Porous Medium with a Convective Boundary Condition

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    The stagnation-point flow over a stretched surface is concerned in many industrial processes such as soft sheet extrusion, metal spinning, and paper production. On the account of these possible engineering applications, the study of stagnation-point flows has received a lot of attention. In the present paper, the non-aligned stagnation-point flow has found to be interesting and innovative in the analysis of viscous nanofluid over stretching surface with a convective boundary condition in presence of porous medium and magnetic effect. The suitable similarity transformation is utilized for the reduction of a set of governing equations, which are solved by using the differential transformation method (DTM) with the aid of MAPLE software. The effect of different physical parameters on flow is shown with the help of graphsThe skin friction, the Nusselt number, and Sherwood number are tabulated. Further, velocity, temperature, and nanoparticle volume fraction profiles are shown graphically and physical parameters are discussed. The comparison of the obtained results with a fourth-order Runge–Kutta–Fehlberg integration scheme with shooting technique is made

    Performance of Regional Rural Banks after Amalgamation in India: Progress and Prospects

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    For the past three decades India's banking system has several outstanding achievements to its credit. The most striking is its extensive reach. It is no longer confined to only metropolitans or cosmopolitans in India. In fact, Indian banking system has reached even to the remote corners of the country. This is one of the main reasons for India's growth process. The government's regular policy for Indian banks since 1969 has paid rich dividends with the nationalization of 14 major private banks of India. Regional Rural Banks started their development process on 2 October 1975 with the formation of a single bank—Prathama Grameen Bank. The RRBs mobilize financial resources from rural/semi-urban areas and grant loans and advances mostly to small and marginal farmers, agricultural labourers and rural artisans. The area of operation of RRBs is limited to the area as notified by GoI covering one or more districts in the State. In this context, the present study is an attempt to examine the impact of amalgamation on physical performance of RRBs during post-amalgamation period

    A conceptual study on Cosmetic Toxicity w.s.r. to Dushi Visha

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    In present state thousands of hurtful toxins are accumulated in environment are taken by the human being itself. Cosmetics are one of them. Cosmetics are those elements which are used to improve the appearance of the human body. They are generally combinations of chemical compounds, some being derived from natural sources, many being synthetic. But the people are not aware of adverse effects of these chemical substances on human body due to its long-term usage. Therefore, this study was carried out which was conceptual type in nature. The aim & objectives of this study was to study the concept Dushivisha & to study the toxic effects of cosmetics on human body & correlate the Dushivisha w.s.r. cumulative toxicity of cosmetics. All the relevant material was compiled from Brihatrayi and available commentaries on it. Research articles are also searched from various websites. All the references were collected & analyzed & finally conclusion was drawn. Conclusion of this study is that cosmetics can be included under cumulative type of toxicity. Due to cumulative toxicity hazards of this substance not seen on the body immediately but they can be seen slowly after their long-term use. This cumulative type of toxicity is similar to Dushivisha concept described by Ayurveda

    Wound Healing Activity of Calotropis Procera Root Bark on Diabetic Rats

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    Herbal therapy and herbal medicine in traditional medicine as well as in alternative medicine practiced in the developed world. There is recent most of the harbal formulation are used to cure & improve the humal life. The present study Wound healing activity of Calotropis procera root bark on diabetic rats in that root bark is extracted from ethanolic extract using soxhlet method. The pharmacognostic study was done after that phytochemical characters should be studied. The root bark has alkaloids, Flavonoids, steroids and tannins active constituents.  Acute toxicity study carried out with three pharmacological models Incision model, Excision model, and Dead space model. All the extract show predominant activity against selected species. Extract shows beneficial effect on diabetic wound it heals in time with standard component. Overall results of this study reveals that this is an effective extract on diabetic wound. Keywords: Traditional medicine, Calotropis procera, Wound Healing Activit

    Salient Features Selection Techniques for Instruction Detection in Mobile Ad Hoc Networks

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    The development of wireless mobile ad hoc networks offers the promise of flexibility, low cost solution for the area where there is difficulties for infrastructure network. A key attraction of this mode of communication is their ease of deployment and operation. However, having a good and robust mobile ad hoc networking will depend entirely on security mechanism system in place. Traditional security mechanisms know as firewalls were used for defensive approach to oppose security obstacle. However, firewalls do not fully or completely defeat intrusions. To cope with this limitation, various intrusions detection systems (IDSs) have been proposed to detect such network intrusion activities. The problem encounter for this particular technique of instruction detections technique is that during network monitoring for data collection for anomaly detection, data that does not contribute to detection must be deleted before detection can be processed or application of learning algorithm for detection of abnormal attacks. In this paper we present a novel feature technique for feature selection before learning technique should be applied. The method has been applied into our own data set, and for the detection purpose we have used most of the well reputed three Machine Learning classifiers with the new selected features for performance evaluation and the experiment shows that higher accuracy results could be achieved with only all the 9 features extracted with our own algorithm with the data set created by using RandomForest classifier

    Intravenous Artesunate for Severe Malaria

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    OBJECTIVE: To review the pharmacodynamics and pharmacotherapeutic use of intravenous artesunate for the treatment of severe malaria. DATA SOURCES: Literature was retrieved through PubMed (1999 March 2010), MEDLINE (1996 March 2010), and the Centers for Disease Control and Prevention (CDC), using the search terms artemisinin, artesunate, malaria, and severe malaria. In addition, reference citations from publications identified were reviewed. STUDY SELECTION AND DATA EXTRACTION: All articles in English that were identified from the data sources were reviewed. Focus was placed on post-marketing trials examining the safety and efficacy of artesunate in comparison with other regimens. DATA SYNTHESIS: The treatment of severe malaria requires prompt, safe, and effective intravenous antimalarials. Many oral and intravenous agents are available worldwide for the treatment of malaria; however, quinidine has been the only option for parenteral therapy in the US. Furthermore, this product\u27s lack of availability as well as its adverse safety profile have created a treatment option gap. Recently, intravenous artesunate was approved by the Food and Drug Administration (FDA) for investigational drug use and distribution by the CDC. Three major studies regarding the use of intravenous artesunate are reviewed, in addition to the World Health Organization\u27s malaria treatment guidelines. While there are no published head-to-head trials of intravenous artesunate versus intravenous quinidine for severe malaria, several international studies comparing intravenous quinine and artesunate concluded that artesunate has the highest treatment success, with lower incidence of adverse events. In addition, other literature is reviewed regarding counterfeit and other issues associated with artesunate. CONCLUSIONS: Artesunate, a new antimalarial currently available through the CDC, appears to be highly effective, better tolerated than quinidine, and not hampered by accessibility issues. If it were to be FDA approved and commercially available, it would be the preferred agent for the treatment of severe malaria in the US
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