133 research outputs found

    Analysis of four protocols based on tropical circulant matrices

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    Several key exchange protocols based on tropical circulant matrices were proposed in the last two years. In this paper, we show that protocols offered by M. Durcheva [M. I. Durcheva. TrES: Tropical Encryption Scheme Based on Double Key Exchange. In: Eur. J. Inf. Tech. Comp. Sci. 2.4 (2022), pp. 11–17], by B. Amutha and R. Perumal [B. Amutha and R. Perumal. Public key exchange protocols based on tropical lower circulant and anti-circulant matrices. In: AIMS Math. 8.7 (2023), pp. 17307–17334.], and by H. Huang, C. Li, and L. Deng [H. Huang, C. Li, and L. Deng. Public-Key Cryptography Based on Tropical Circular Matrices. In: Appl. Sci. 12.15 (2022), p. 7401] are insecure

    Biodecaffeination of tea by Pseudomonas alcaligenes- Standardization and Optimization of parameters

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    This Dissertation / Report is the outcome of investigation carried out by the creator(s) / author(s) at the department/division of Central Food Technological Research Institute (CFTRI), Mysore mentioned below in this page

    ANTIBACTERIAL ACTIVITY OF GREEN BIOSYNTHESIS OF MAGNETIC IORN OXIDE NANOPARTICLE OF MURRAYA EXOTICA L. AQUEOUS EXTRACT AGAINST HUMAN PATHOGENS

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    The green synthesis of magnetic iron oxide nanoparticles is a convenient, economical, rapid and eco-friendly method compared to physical and chemical synthesis methods. In the present study iron oxide nanoparticles synthesized by Murraya exotica L. leaves extract. The formation of iron oxide nanoparticles was confirmed by the colour change and further characterized by UV-Visible Spectroscopy, FT-IR analysis, DLS and XRD. The morphology and the size of nanoparticles were analyzed by SEM and HR - TEM analysis. The antibacterial efficacy of synthesized iron oxide nanoparticles exhibited considerable activity against the tested human pathogens. Our study shows that green synthesized iron oxide nanoparticles can be a good source for alternative therapy of bacterial diseases. Key words: Green synthesis, iron oxide, nanoparticles, Murraya exotica, antibacterial efficac

    Evaluation of physiochemical characteristics of fresh and osmotic dehydrated fig (Ficus carica L.)

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    Fig (Fiscus carica L.) fruits being the rich source of phytochemicals, particularly anti-oxidants serve as a powerhouse of nutrients and has many medicinal properties. Fig promoting healthy bowel function due to the high level of fiber. Rich in vitamins A,C,E, and minerals like calcium useful to improve the health status and to balance the pH of the body. Due to its short-lived nature, it cannot be stored for longer period (2-3 days) because higher postharvest losses. The lag in processing of fig is mainly attributed to the highly perishable nature of the fig as it posses high moisture content. The objective of the work was to improve the shelf life and reduce the perishability of fig. Two varieties, namely Local and Timla (Yercud - 1) variety were selected and osmotically dehydrated with different concentration (30, 40 and 50 °brix) of sugar solution. Timla variety contained  lower  percentage of  seeds (21%) and fibre (2.05 g/100g),  higher pulp thickness (1.0 cm), maximum colour values (L - 70.30, a - 4.65 and b - 12.37), TSS (19°brix) and vitamin C (39.0 mg/100g) than the local variety. Timla variety treated with 50° brix osmotic solution was found better nutrient retention, drying characteristics and organoleptic properties. The resultant products had improved shelf life and increased concentration of nutrients, making it suitable for processing and value addition

    Vertex Covering and Strong Covering of Flower Like Network Structures

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    AbstractCovering problems were first considered in the context of practical motivations to model and locate emergency service facilities. The covering number is an essential tool in the safety of networks, as it gives the minimum number of detection devices required to identify the location of an intruder or a faulty node. In this paper, we provide a graph theory based approach which could be beneficial to keep the network secure. The covering number for complete flower graphs are calculated exactly and their theoretical properties are explored. Our results on flower graphs can be applied to flower like patterns which represent useful frameworks such as anthropology to study the cultural evolution

    Shoot regeneration from immature cotyledonary nodes in black gram [<i style="">Vigna</i> <i style="">mungo</i> (L.) Hepper]

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    551-555Eighteen-day-old immature cotyledonary node explants (18 d after anthesis) of black gram produced multiple shoots in MS salts+B5 vitamins containing medium in the presence of BA (1.0 mg/L), TDZ (0.1 mg/L) and AdS (15 mg/L). Maximum shoot proliferation (28 shoot/explant) occurred at the end of second subculture after 45 d. Periodic excision of regenerated shoots from explants increased shoot regeneration efficiency during subculture. The combination of TDZ and AdS with BA significantly increased shoot proliferation. Elongation and rooting were performed in GA3 (0.6 mg/L) and IBA (1.0 mg/L) containing media, respectively. The in vitro raised plantlets were acclimatized in green house and successfully transplanted to the field with a survival rate of 60%

    Globalization and Contemporary Tamil Cinema: The Face of Change

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    The study focuses on how culture and social aspects are modified because of the effect of liberalization and globalization. It would focus on the prime factor of globalization - how it has produced a different Tamil cinema culture, of both conceptualizing the text as well as interpretation of the text. While commenting on contemporary Tamil cinema, the author puts forward the hypothesis that, present day Tamil cinema has a deep attraction to popular culture along with an amateur way of film making. These films and their film makers have diverted the global attention to Tamil cinema, along with providing their ardent audience a wide range of different films which they are ready to see and accept. Tamil cinema of today has more or less taken the „middle path‟, where commercially viable films are made with a sense of identity with original stories set within the culture

    Microscopical, histochemical and fluorescence evaluation of Tectona grandis L. leaves dye extract

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    Teak (Tectona grandis L.) leaves can aid in the treatment of inflammations, leprosy, skin diseases, and indolent ulcers. Dyes are important in human life because they are both safe and environmentally friendly. In the present investigation teak leaves were evaluated macro, microscopical and fluorescence methods. The results showed that the teak leaves have dorsal and ventral surfaces that are 30-60 cm long and 20-30 cm wide. Teak leaf powder was given a yellow tint after being treated with diluted ammonia and H2SO4 to reveal the presence of flavonoids. FeCl3 generated a black coloration after a few drops, indicating the presence of tannin. While dinitrophenol hydrazine showed the presence of terpenoids, blue, green, or red coloring indicates the presence of polyphenol. Under both regular and UV light, the fluorescence behavior of teak powder under various situations were investigated

    Effectiveness of Hot application on abdominal pain in dysmenorrhoea among adolescent girls in selected college at Coimbatore

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    A study to assess the effectiveness of hot application on abdominal pain in dysmenorrhoea among adolescent girls in selected college at Coimbatore was conducted as a partial fulfilment of the requirement for the degree of master of science in Nursing,Cherraan’s college of Nursing, Coimbatore,under Tamil Nadu Dr.M.G.R. Medical University, Chennai. OBJECTIVES: The Objectives of the study were to assess the pain level among the adolescent girls with dysmenorrhoea,to evaluate the effectiveness of the hot application in management of abdominal pain in dysmenorrhoea among adolescent girls,to find the association between the level of pain with the demographic variables of dysmenorrhoea adolescent girls. Hypothesis were formulated such as there will be a significant difference in pain and severity following hot application in dysmenorrhea adolescent girls and there will be significant association between the pain level and selected demographic variable. An experimental study was done among adolescent girls with abdominal pain in dysmenorrhoea. Hot application was given on lower abdomen for 50 adolescent girls were selected respectively by purposive sampling technique.questionnaire and McCaffery numerical pain scale were used for data collection. The findings of the study revealed that there was a significant difference in abdominal pain after hot application in dysmenorrhoea among adolescent girls. The obtained ‘Z’ value 8.245 was significant at 0.05 level. The study revealed a significant difference in abdominal pain after hot application in dysmenorrhoea among adolescent girls. There are association between some of the demographic variables and pain. They are age, onset of menarche, number of days of menstruation, number of pads changed in a day and family history of dysmenorrhoea
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