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Search Results: 1 - 10 of 171 matches for " Ramya Marappa "
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Fungal Keratitis and Ocular Surface Squamous Neoplasia in a HIV Positive Patient  [PDF]
Thanuja Pradeep, Ramya Marappa
Open Journal of Ophthalmology (OJOph) , 2016, DOI: 10.4236/ojoph.2016.62015
Abstract: Aim: We report a case of fungal keratitis and Ocular Surface Squalous Neoplasia (OSSN) occurring in a HIV positive patient. Method: A 32-year-old female patient presented with a non-healing ulcer, which was diagnosed as fungal keratitis. On examination her ocular surface also revealed OSSN on the nasal bulbar conjunctiva. Serological investigations revealed HIV positive status with CD 4 counts of 61 cells/μl. Patient was treated for fungal keratitis with topical antifungals and also underwent excision biopsy of OSSN which was reported as conjunctival intraepithelial neoplasia. The ulcer showed significant response to topical medication only after the commencement of Anti-Retroviral Therapy (ART). Conclusion: This case emphasizes on the importance of a thorough ocular examination to rule out associated ocular conditions and investigations to rule out immunosuppressive status in a non-healing ulcer.
Genetic Variation in Picea mariana × P. rubens Hybrid Populations Assessed with ISSR and RAPD Markers  [PDF]
Ramya Narendrula, Kabwe Nkongolo
American Journal of Plant Sciences (AJPS) , 2012, DOI: 10.4236/ajps.2012.36088
Abstract: Interspecific hybridization can result in significant shifts in allele frequencies. The objective of the present study was to assess the level of genetic variation in populations of P. mariana × P. rubens hybrids derived from artificial crosses. Progenies from backcross populations created through a series of controlled pollinations among P. mariana and P. rubens trees across the hybridization index were analyzed. Several Inter Simple Sequence Repeat (ISSR) and Random Amplified Polymorphic DNA (RAPD) primers were used to amplify genomic DNA samples from each population. ISSR primers produced from 30% to 52% polymorphic loci. The level of polymorphism was higher with RAPD markers, ranging from 57% to 76%. Overall, the two marker systems generated similar levels of polymorphic loci for P. mariana and P. rubens populations. No significant differences were found among the P. mariana × P. rubens populations analyzed and between the hybrids and the parental populations regardless of the molecular marker used. This confirms the genetic closeness of P. mariana and P. rubens species.
Studies on the Growth and Characterization of L-Arginine Maleate Dihydrate Crystal Grown from Liquid Diffusion Technique  [PDF]
K. Ramya, C. Ramachandra Raja
Journal of Minerals and Materials Characterization and Engineering (JMMCE) , 2016, DOI: 10.4236/jmmce.2016.42014
Abstract: Nonlinear optical crystals of L-Arginine maleate dihydrate were grown from liquid diffusion method. The lattice parameters of the crystal were identified using single crystal and powder crystal X-ray diffraction analyses. Fourier transform infrared spectroscopy and Fourier transform Raman spectroscopy were made to study the vibrational functional groups in the grown crystal. Optical absorption and transmission ranges were measured from UV-VIS-NIR spectrum. The molecular structure of the crystal is established through 1H-NMR and 13C-NMR studies. Thermal stabilities and decomposition of the grown crystal were studied from TG/DTA and DSC analyses. Nonlinear optical property of the crystal was determined by Kurtz and Perry powder technique.
Golden Research Thoughts , 2013, DOI: 10.9780/22315063
Abstract: The study aims to find out the relationship between the socio-economic and the demographic characteristics of higher secondary students (N=559, male 311, female 248) residing in government hostels run by Adi-Dravidar Welfare Department in Tiruchirappalli district, Tamil Nadu. Out of 684 students, 559 students were selected from all 37 hostels by adopting census method. A self prepared questionnaire was used for collecting data in respect of socio-economic and demographic variables and an instrument on Study Habits and Attitude was used to find out the study habits of the respondents. The result shows that sex, caste, place of living, parents occupation, presence of alcoholic fathers, private tuition, school coaching and extra-curricular activities have significant influence on the study habits of the respondents. Further, the study shows that age, class, religion, course, school, birth order, parental education, income, marital status, type and size of family, have no significant influence on study habits of the respondents. An understanding of the socio-economic and the demographic characteristics of the respondents is very essential to develop good study habits of students residing in government welfare hostels.
Importance Of Aflatoxins In Scientific Sector
Ramya Muthukrishnan
Pharmaceutical Reviews , 2004,
Abstract: Aflatoxins are thefamily of mycotoxins that are related by the presenceof bisfurancoumarin compounds. They areprobably the best know and most intensively researched mycotoxinsin the world. They are named so because they were first isolated from thefungus Aspergillus flavus.Recent research has found out thar under specificconditions some strains of Aspergillus oryzae and Aspergillus parasiticus also have the ability to produce toxins. Theyare designated as B and G series because of their fluorescegreen yellow.The syndrome resulting from theingestion of aflatoxin through mold contaminated foodor feed is referred to as aflatoxicosis. The best wayto present aflatoxicosis is to present the infectionof the feed by Aspergillus. High CO2 levels alongwith decreased humidity have been shown to decrease aflatoxinlevels. The most effective and practical method of detoxification ofcontaminated food is ammoniation. This can kill up to99% of mold growth. A properdetoxification process must be technically and economically viable and mustmeet the following criteria.
A HPTLC Method Of Analysis Of Aflatoxins And Its Possible Effect On Gram Positive
Ramya Muthukrishnan
Pharmaceutical Reviews , 2004,
Abstract: Aflatoxins are a family of mycotoxinshat are related by the presence of bisfuranocoumarin compounds. They are probably the bestknown and most intensively researched mycotoxins inthe world. They are produced mainly by toxigenicstrains of Aspergillus flavus and Aspergillusparasiticus. Aflatoxins area group of secondary fungal metaboilites that arepotent animal toxins and carcinogens.sSeveral species of Penicillium and Escherichia coil were found to be inhabited by the toxin. According tothe tests done by me it is observed that it inhabits the growth ofStreptococcus pneumoniae and Staphylococcus aureus to a great extent.The project work was carried outas follows:
A High Order Spectral Volume method for equations containing third spatial derivatives using an Interior Penalty Formulationulatio
Ramya Raghavendra
CFD Letters , 2011,
Network Analysis and Application Control Software based on Client-Server Architecture
Ramya Mohan
Computer Science , 2013, DOI: 10.5120/11634-7111
Abstract: This paper outlines a comprehensive model to increase system efficiency, preserve network bandwidth, monitor incoming and outgoing packets, ensure the security of confidential files and reduce power wastage in an organization. This model illustrates the use and potential application of a Network Analysis Tool (NAT) in a multi-computer set-up of any scale. The model is designed to run in the background and not hamper any currently executing applications, while using minimum system resources. It was developed as open source software, using VB. Net, with a view to overcoming limitations of legacy systems and financial restrictions in small-to mid-level organizations like businesses and educational institutes. It is fully-customizable and serves as a simple and open-source alternative to existing software. The NAT relies on simple client-server architecture and uses remote access to monitor and maintain the computers on a network, for example logging off a user or shutting down a computer after a certain "idle" time, enabling and disabling applications, troubleshooting and so on. The NAT was tested in a laboratory and resultant data is presented, along with the results of a survey that was conducted among users.
Characterization of deposits formed on diesel injectors in field test and from thermal oxidative degradation of n-hexadecane in a laboratory reactor
Ramya Venkataraman, Semih Eser
Chemistry Central Journal , 2008, DOI: 10.1186/1752-153x-2-25
Abstract: Diesel fuel has a widespread use in engines that vary in size, speed, power output and application. This includes all forms of land and sea transportation, power generation units and machinery for industrial use. The thermal stability of diesel is therefore a critical parameter for the smooth operation of these systems. Filter plugging and solid deposit formation on fuel injector tips are the two problems most commonly encountered among diesel engine operators. The formation of deposits has been attributed to diesel instability during storage and engine operation [1]. These deposits can cause serious malfunction or even failure in extreme cases. One important feature that distinguishes jet fuel and diesel from gasoline is that their chemical composition allows them to be self igniting. The diesel instability problem is worsened by the presence of relatively longer chain paraffins in the fuel.Studies so far have shown that fuel oxidation products, hydroperoxides and alkylperoxy radicals are primarily responsible for the formation of insoluble deposits from diesel and other middle distillates [1,2]. Solid and liquid products formed from the thermal oxidative degradation of jet fuel were characterized in the previous chapter. This study investigates the nature of HPDI deposits obtained from high-pressure fuel injector, comparing these deposits with those formed from jet fuel. Since information on the hydrocarbon and heteroatom composition of the batch of diesel fuel from which these solids were formed was not available, deposits obtained from the stressing of a model compound (n-hexadecane) were characterized and compared in order to glean the thermal history and formation mechanism of the injector deposits.The thermal stressing conditions to which the diesel fuel was subjected in the injectors were not known. The results of the chemical and morphological analysis of these deposits are discussed in this section, along with the results obtained from n-hexadecane stressi
Golden Research Thoughts , 2012, DOI: 10.9780/22315063
Abstract: Green marketing is not going to be an easy concept. The increasing economic development, rapid growth of population and growth of industries in India is putting a strain on the environment, infrastructure and the countries natural resources. Industrial pollution, soil erosion, deforestation, rapid industrialization, urbanization, and land degradation are all worsening problems. Environmental pollution is one of the most serious problems facing humanity and other life forms on our planet today. So it's the right time to implement the Green Marketing in India. Green Marketing makes drastic change in the business not even in India but save the world from pollution.
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