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Search Results: 1 - 10 of 3706 matches for " Nancy Bala "
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Determination of gallic acid in Phyllanthus emblica Linn. dried fruit powder by HPTLC
Sawant Laxman,Pandita Nancy,Prabhakar Bala
Journal of Pharmacy and Bioallied Sciences , 2010,
Abstract: Objective : Emblica (Phyllanthus emblica L.), an euphorbiaceous plant, is widely distributed in subtropical and tropical areas of India, China and Indonesia. The fruits possess antimicrobial, antioxidant, anti-inflammatory, analgesic and antipyretic properties. In the current article a new, simple, sensitive, selective, precise, and robust high-performance thin-layer chromatographic (HPTLC) method was developed and validated for the determination of gallic acid in dried fruit powder of Phyllanthus emblica. Materials and Methods : The quantitative determination of gallic acid was performed on TLC aluminium plates pre-coated with silica gel 60F-254 as the stationary phase. The linear ascending development was carried out in a twin trough glass chamber saturated with a mobile phase consisting of toluene: ethyl acetate: formic acid: methanol (3:3:0.8:0.2) at room temperature (25 ± 2°C). Camag TLC scanner III was used for spectrodensitometric scanning and analysis, in the absorbance mode, at 278 nm. Results : The linear regression analysis data for the calibration plots showed good linear relationship with r 2 = 0.99977 in the concentration range of 40 - 240 ng spot 1, with respect to the peak area. According to the guidelines of the International Conference on Harmonization (ICH), the method was validated for precision, accuracy, and recovery. Conclusion : Statistical analysis of the data showed that the method was reproducible and selective for the estimation of gallic acid.
Mr,N,Bala Sundara Ganapathy1 , M.Sasi Rekha2 Ms. X. Arockia Nancy3
International Journal of Engineering Trends and Technology , 2011,
Abstract: The current service-oriented solutions are often not as dynamic and adaptable as intended. The publish-find-bindexecute cycle of the Service-Oriented Architecture triangle is not entirely realized. This paper highlights some issue of current web service technologies, with a special emphasis on service metadata, Quality of Service, service querying, dynamic binding, and service mediation. The Vienna Runtime Environment for Service-Oriented Computing (VRESCo) gives the addresses these issues. The detailed descriptions of the different aspects are focussed on service querying and service mediation. Finally, the paper presents a performance evaluation of the different components, together with an end-to-end evaluation to show the applicability and usefulness of the system.
Quality of Antimalarial Drugs and Antibiotics in Papua New Guinea: A Survey of the Health Facility Supply Chain
Manuel W. Hetzel, Madhu Page-Sharp, Nancy Bala, Justin Pulford, Inoni Betuela, Timothy M. E. Davis, Evelyn K. Lavu
PLOS ONE , 2014, DOI: 10.1371/journal.pone.0096810
Abstract: Background Poor-quality life-saving medicines are a major public health threat, particularly in settings with a weak regulatory environment. Insufficient amounts of active pharmaceutical ingredients (API) endanger patient safety and may contribute to the development of drug resistance. In the case of malaria, concerns relate to implications for the efficacy of artemisinin-based combination therapies (ACT). In Papua New Guinea (PNG), Plasmodium falciparum and P. vivax are both endemic and health facilities are the main source of treatment. ACT has been introduced as first-line treatment but other drugs, such as primaquine for the treatment of P. vivax hypnozoites, are widely available. This study investigated the quality of antimalarial drugs and selected antibiotics at all levels of the health facility supply chain in PNG. Methods and Findings Medicines were obtained from randomly sampled health facilities and selected warehouses and hospitals across PNG and analysed for API content using validated high performance liquid chromatography (HPLC). Of 360 tablet/capsule samples from 60 providers, 9.7% (95% CI 6.9, 13.3) contained less, and 0.6% more, API than pharmacopoeial reference ranges, including 29/37 (78.4%) primaquine, 3/70 (4.3%) amodiaquine, and one sample each of quinine, artemether, sulphadoxine-pyrimethamine and amoxicillin. According to the package label, 86.5% of poor-quality samples originated from India. Poor-quality medicines were found in 48.3% of providers at all levels of the supply chain. Drug quality was unrelated to storage conditions. Conclusions This study documents the presence of poor-quality medicines, particularly primaquine, throughout PNG. Primaquine is the only available transmission-blocking antimalarial, likely to become important to prevent the spread of artemisinin-resistant P. falciparum and eliminating P. vivax hypnozoites. The availability of poor-quality medicines reflects the lack of adequate quality control and regulatory mechanisms. Measures to stop the availability of poor-quality medicines should include limiting procurement to WHO prequalified products and implementing routine quality testing.
Performance Tradeoff with Routing Protocols for Radio Models in Wireless Sensor Networks  [PDF]
Manju Bala, Lalit Awasthi
Wireless Engineering and Technology (WET) , 2011, DOI: 10.4236/wet.2011.22008
Abstract: In this paper, we have simulated and evaluated the performance tradeoff with routing protocols: Constrained Flooding, the Real-Time Search and the Adaptive Tree on MICA and MICAz platform with different radio models using PROWLER for wireless sensor networks. The simulation results establish that the MICAz motes give low latency, high throughput, high energy consumption, low efficiency but better lifetime while the MICA motes give high success rate and less loss rate. It has been, thus, concluded that in case of all the radio models the MICAz is preferably better than MICA in applications where energy is a constraint. Moreover, use of MICAz motes increases the network lifetime in comparison to MICA for the radio models. Further, the AT protocol can be applied to achieve better energy consumption, efficiency and lifetime in real time for wireless sensor networks.
On Rayleigh Wave in Two-Temperature Generalized Thermoelastic Medium without Energy Dissipation  [PDF]
Baljeet Singh, Kiran Bala
Applied Mathematics (AM) , 2013, DOI: 10.4236/am.2013.41019

In this paper, Rayleigh surface wave is studied at a stress free thermally insulated surface of a two-temperature thermoelastic solid half-space in absence of energy dissipation. The governing equations of two-temperature generalized thermoelastic medium without energy dissipation are solved for surface wave solutions. The appropriate particular solutions are applied to the required boundary conditions to obtain the frequency equation of the Rayleigh wave. Some special cases are also derived. The non-dimensional speed is computed numerically and shown graphically to show the dependence on the frequency and two-temperature parameter.

Propagation of Waves in a Two-Temperature Rotating Thermoelastic Solid Half-Space without Energy Dissipation  [PDF]
Baljeet Singh, Kiran Bala
Applied Mathematics (AM) , 2012, DOI: 10.4236/am.2012.312261
Abstract: The present paper is concerned with the propagation of plane waves in an isotropic two-temperature generalized thermoelastic solid half-space in context of Green and Naghdi theory of type II (without energy dissipation). The governing equations in xz plane are solved to show the existence of three coupled plane waves. The reflection of plane waves from a thermally insulated free surface is considered to obtain the relations between the reflection coefficients. A particular example of the half-space is chosen for numerical computations of the speeds and reflection coefficients of plane waves. Effects of two-temperature and rotation parameters on the speeds and the reflection coefficients of plane waves are shown graphically.
Deformation of a two-phase medium due to a long buried strike-slip fault  [PDF]
Sunita Rani, Neeru Bala
Natural Science (NS) , 2013, DOI: 10.4236/ns.2013.510132

The aim of the present paper is to obtain the two-dimensional deformation of a two-phase elastic medium consisting of half-spaces of different ri- gidities in welded contact due to a buried long strike-slip fault. The solution is valid for arbitrary values of the fault-depth and the dip angle. The effect of fault-depth on the displacement and stress fields for different values of dip angle has been studied numerically. It is found that the displacement field varies significantly for a buried fault from the corresponding displacement field for an interface-breaking fault. The contour maps showing the stress field for various dip angles for buried and interface-breaking fault have been plotted. It has been observed that the stress field varies significantly for a buried fault from the corresponding stress field for an interface-breaking fault.

Landmarks in Urban Space as Signs  [PDF]
Havva Alkan Bala
Current Urban Studies (CUS) , 2016, DOI: 10.4236/cus.2016.44027
Abstract: A signal or a symbol has been sent with conscious. Urban space has signified elements like landmark. Landmarks as references signs orient the people. Landmarks are defined as an external point of reference that helps orienting in a familiar or an unfamiliar environment. This study is about to clear out the meaning of landmark for the city users who have perceived reference point with their memory and perception. In other words, this study is about discovering how the city affects the people who experience the urban space within semiotic of landmarks in Konya, Turkey. The method of this study is photo-elicitation to understand how people orient themselves in moving within urban space considering landmarks. Analysis of interview texts, there were six different type of landmarks as; city memory-historical, city landscape/ square, high rise/skyscraper, daily life/city usage, personal memory/personal perception, circulation pattern. In this study the semiology of communication studies codes established by society to produce messages consciously sent and received as signals, signs and symbols.
Investors Perception Regarding Depository Services
Golden Research Thoughts , 2013, DOI: 10.9780/22315063
Abstract: Depository is an organization which holds securities of investors in electronic form. The objectives ofdepository system are to reduce the time for transfer of securities, to avoid the risk of settlement of securities, toenhance liquidity and efficiency, to reduce cost of transaction for the investor, to create a system for the centralhandling of all securities, to promote the county's competitiveness by complying with global standards, to provideservice infrastructure in a capital market.In this article, Investigator gave brief overview about depository participants, eligibility criteria for DPsand the legal framework of Depository system in India. In research, investigator has used a structured questionnairefor eliciting the required responses relating to Depository Services from the general public. For the purpose ofsecondary data books, articles, reports, annual reports of the stock exchanges, news papers and internet has beenused.
Predictors of Retention and Passing the National Council Licensure Examination for Registered Nurses  [PDF]
Nancy Elkins
Open Journal of Nursing (OJN) , 2015, DOI: 10.4236/ojn.2015.53026
Abstract: Using Seidman’s retention formula as a theoretical foundation, this study investigated historical data from a Bachelor of Science (BSN) nursing program to determine whether the admission variables of the preprogram grade point averages (GPA), American College Testing (ACT) scores, anatomy and physiology course grades, and/or the Health Education System Inc. (HESI) Exit Exam scores could predict completing the nursing program, as well as passing the NCLEX-RN. A significant relationship (p < 0.01) was identified between the preprogram GPA, ACT scores, anatomy grades, and the HESI Exit Exam scores with the completion of the BSN program and passing the NCLEX-RN.
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