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Search Results: 1 - 10 of 654 matches for " Dhiraj Kapoor "
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Prevalence of Diabetes Mellitus and Its Risk Factors among Permanently Settled Tribal Individuals in Tribal and Urban Areas in Northern State of Sub-Himalayan Region of India
Dhiraj Kapoor,Ashok Kumar Bhardwaj,Dinesh Kumar,Sunil Kumar Raina
International Journal of Chronic Diseases , 2014, DOI: 10.1155/2014/380597
Abstract: Background. Effect of urban environment on the development of DM and its risk factors is studied with an ecological fallacy due to their study designs that formulate the background for the present study. Objective. To study the prevalence of DM and associated lifestyle related risk factors in traditional tribal individuals residing in tribal area and migrating persons of the same tribe to urban area of sub-Himalayan northern state of India. Methodology. Population based cross-sectional study. Results. A total of 8000 individuals (tribal: 4000; urban: 4000) were recruited. Overall, among urban tribes the prevalence of central obesity (59.0%), overweight (29.3%), stage 1 (22.8%) and stage 2 (5.3%) hypertension, and DM (fasting: 7.8%; OGTT: 8.5%) was significantly higher than the tribes of tribal area. Based on OGTT, the prevalence of DM was found to be 9.2% among central obese tribes of urban area and 6.7% of tribal area . DM showed a significant high prevalence among urban tribes with prehypertension (urban: 8.3%; tribal: 2.9%; ), and stage 1 (urban: 14.1%; tribal: 8.7%; ) and stage 2 (urban: 17.5%; tribal: 13.9%; ) hypertension. Conclusion. Urban environment showed a changing lifestyle and high prevalence of DM among tribal migrating urban tribes as compared to traditional tribes. 1. Introduction Emerging trend of diabetes mellitus (DM) is observed worldwide, as by 2025, its prevalence is projected to be 6.3%, which is a 24.0% increase compared with 2003. There will be 333 million (a 72.0% increase) diabetics by 2030 in individuals of 20 to 79 years of age. The developing world (mainly central Asia and Sub-Saharan Africa) accounted for 141 million people with diabetes (72.5% of the world total) in 2003 [1]. Environmental factors like obesity (central or general), physical inactivity, and diet (saturated fats and transfatty acids) and socioeconomic factors are responsible for development of DM [2–6]. Diet rich in polyunsaturated fats and long chain omega-3 fatty acids reduces the risk for DM [7]. Along with the rising trend of DM, rapid urbanization has been observed as from 2008 to 2030 the global urban population will increase by 1.6 billion people (from 3.3 billion to 4.9 billion). While during the same period the rural population is going to reduce by 28 million. This demographic transition will largely take place in developing countries (particularly in Asia and Africa), as by 2030, the developing world population will constitute more than 80% of the world’s urban population [2, 3]. United Nations (UN) recognized that urbanization has health
TEC and Instrumental Bias Estimation of GAGAN Station Using Kalman Filter and SCORE Algorithm  [PDF]
Dhiraj Sunehra
Positioning (POS) , 2016, DOI: 10.4236/pos.2016.71004
Abstract: The standalone Global Positioning System (GPS) does not meet the higher accuracy requirements needed for approach and landing phase of an aircraft. To meet the Category-I Precision Approach (CAT-I PA) requirements of civil aviation, satellite based augmentation system (SBAS) has been planned by various countries including USA, Europe, Japan and India. The Indian SBAS is named as GPS Aided Geo Augmented Navigation (GAGAN). The GAGAN network consists of several dual frequency GPS receivers located at various airports around the Indian subcontinent. The ionospheric delay, which is a function of the total electron content (TEC), is one of the main sources of error affecting GPS/SBAS accuracy. A dual frequency GPS receiver can be used to estimate the TEC. However, line-of-sight TEC derived from dual frequency GPS data is corrupted by the instrumental biases of the GPS receiver and satellites. The estimation of receiver instrumental bias is particularly important for obtaining accurate estimates of ionospheric delay. In this paper, two prominent techniques based on Kalman filter and Self-Calibration Of pseudo Range Error (SCORE) algorithm are used for estimation of instrumental biases. The estimated instrumental bias and TEC results for the GPS Aided Geo Augmented Navigation (GAGAN) station at Hyderabad (78.47°E, 17.45°N), India are presented.
Characterization and Modeling of Urban Water Quality in the City of Calgary, Canada  [PDF]
Dhiraj Shrestha, Jianxun He
Natural Resources (NR) , 2017, DOI: 10.4236/nr.2017.88032
Abstract: Non-point source pollution (NPS) besides point source pollution (PS) has contributed to pollutant loading into natural receiving water bodies. Due to the nature of NPS, the quantification of pollutant loading from NPS is very challenging but crucial to riverine water quality management, especially for the river reach flowing through urban areas. The water quality in the river reach of the Bow River flowing through the City of Calgary in Alberta, Canada, is affected by both PS and NPS. Thus, understanding and characterizing water quality of discharges (affected by NPS) into the river reach is necessary for better managing riverine water quality and preventing water quality degradation. In the paper, monitored event mean concentrations (EMCs) of stormwater runoff and mean concentrations of snowmelt and baseflow of seven common pollutants from sub-catchments, which are categorized into four land use types including commercial, industrial, residential and on-going development land uses, were used to investigate the linkage between land use and water quality. Statistical analysis techniques were adopted to identify differences or similarities in water quality among different flow types, different land use types, and among/between catchments of same land use. The results indicated that EMCs of many water quality parameters vary among different land use types and among/between catchments of same land use. The results also showed median EMCs of pollutants of snowmelt and baseflow are, in general, lower than those of stormwater runoff. In addition, Stormwater Management Model was employed to investigate the physical process that would affect water quality response to storm events for two typical land uses, industrial and residential land uses. The modeling results supported that wash-off of particulate matters might primarily affect water quality response of catchments between different land uses. All the results shed the light on the necessity of quantifying pollutant loading considering the characteristics of land uses.
SST and ADITYA tokamak research in India
Bora, Dhiraj;,;,;
Brazilian Journal of Physics , 2002, DOI: 10.1590/S0103-97332002000100032
Abstract: steady state operation of tokamaks plays an important role in high temperature magnetically confined plasma research. steady state superconducting tokamak (sst) programme in india deals with the development of various technologies in this direction. sst-1 [1] machine has been engineered and is being fabricated at the institute for plasma research. the objectives of the machine are to study physics of plasma processes under steady state condition and develop the technologies related to steadystate operation. various sub-systems are being prototyped and developed. sst-1 is a large aspect ratio machine with a major radius of 1.1 m and a plasma minor radius of 0.2 m with elongation of 1.7 to 1.9 and triangularity of 0.5 to 0.7. it has been designed for 1000 sec operation at 3 t toroidal magnetic eld. neutral beam injection and radio frequency heating systems are being developed to heat the plasma. lower hybrid current drive system would sustain 200 ka of plasma current during 1000 sec operation. aditya tokamak [2] has been upgraded with new diagnostics and rf heating systems. thomson scattering and ece diagnostics have been operated. 200 kw ion cyclotron resonance heating (icrh) and 200 kw electron cyclotron resonance heating (ecrh) systems have been successfully commissioned. rf assisted initial breakdown experiments have been initiated with these systems.
Does Technology Lead to Better Financial Performance? A Study of Indian Commercial Banks
Dhiraj Sharma
Managing Global Transitions , 2012,
Abstract: It has been a matter of debate whether Technology provides better financial results and improves productivity. The present paper attempts to study the inter-group comparison of financial performance of Indianbanks by classifying the banks on the basis of usage of Technology. Further,for the purpose of temporal comparison, the period for the studyhas been divided into two parts, i. e. low technology induction periodand high technology induction period. Findings of the paper show thatthe fully IT oriented banks are financially better off than the partiallyIT oriented banks. Moreover, the performance of almost all the banksunder study has tremendously improved in the high technology inductionperiod. However, for the Indian banking industry, the correlationbetween Technology induction and financial productivity is negativethough statistically insignificant and low.
An Improved Approach to perform Crawling and avoid Duplicate Web Pages
Dhiraj Khurana
International Journal of Computer Science and Management Studies , 2012,
Abstract: When a web search is performed it includes many duplicate web pages or the websites. It means we can get number of similar pages at different web servers. We are proposing a Web Crawling Approach to Detect and avoid Duplicate or Near Duplicate WebPages. In this proposed work we are presenting a keyword Prioritization based approach to identify the web page over the web. As such pages will beidentified it will optimize the web search.
SST and ADITYA tokamak research in India
Bora Dhiraj
Brazilian Journal of Physics , 2002,
Abstract: Steady state operation of tokamaks plays an important role in high temperature magnetically confined plasma research. Steady state Superconducting Tokamak (SST) programme in India deals with the development of various technologies in this direction. SST-1 [1] machine has been engineered and is being fabricated at the Institute for Plasma Research. The objectives of the machine are to study physics of plasma processes under steady state condition and develop the technologies related to steadystate operation. Various sub-systems are being prototyped and developed. SST-1 is a large aspect ratio machine with a major radius of 1.1 m and a plasma minor radius of 0.2 m with elongation of 1.7 to 1.9 and triangularity of 0.5 to 0.7. It has been designed for 1000 sec operation at 3 T toroidal magnetic eld. Neutral beam Injection and Radio frequency heating systems are being developed to heat the plasma. Lower hybrid Current Drive system would sustain 200 kA of plasma current during 1000 sec operation. ADITYA tokamak [2] has been upgraded with new diagnostics and RF heating systems. Thomson Scattering and ECE diagnostics have been operated. 200 kW Ion Cyclotron Resonance Heating (ICRH) and 200 kW Electron Cyclotron Resonance Heating (ECRH) systems have been successfully commissioned. RF assisted initial breakdown experiments have been initiated with these systems.
Independent and combined association of parity and short pregnancy with obesity and weight change among Indian women  [PDF]
Shilpi Gupta, Satwanti Kapoor
Health (Health) , 2012, DOI: 10.4236/health.2012.45044
Abstract: Objective: To investigate association of parity and short pregnancy with obesity and weight change in Aggarwal Baniya women. Method: A cross-sectional analysis was carried out on a representative sample of 307 adult Aggarwal Baniya women aged 30 - 50 years (mean age: 38.7 ± 4.87) using multistage cluster sampling method. Weight, height, various skinfold thicknesses, waist and hip circumference were measured using standardized protocol. Various indices of obesity (BMI, WHR, WHtR, GMT) were calculated subsequently. Comparison groups were defined by the number of births (parity), short pregnancies and total pregnancies. Mean change in weight and other obesity markers were examined for each group separately. Correlation analysis was applied to see the association of childbearing on obesity. Linear regression was applied as an effective measure. Results: There was a gain in weight (3.16 kg) and increase in other obesity markers (BMI: 1.29 kg/m2; WC: 2.38 cm; HC: 3.83 cm) with each increase in each parity. Significant and positive correlation (p < 0.001) was found between obesity and parity. However, negative association was found between short pregnancy and obesity parameters (BMI: –0.767 kg/m2). Conclusion: Among other risk factors, high parity number may be associated with obesity in women. Therefore, interventions to prevent obesity should be targeted at women prior to initiation of childbearing. However, the impact of reproductive wastage in the form of short pregnancies on women’s obesity needs further exploration.
Neonatal resuscitation
Kapoor Sarin,Kapoor D
Indian Journal of Critical Care Medicine , 2007,
Abstract: There have been important advances in the science of neonatal resuscitation and various international resuscitation committees have formulated evidence-based recommendations for the performance of resuscitation at birth. The new guidelines for resuscitation at birth were developed by International Liaison Committee on Resuscitation (ILCOR) and were presented at 2005 International Consensus Conference on Emergency Cardiovascular Care and Cardiopulmonary Resuscitation Science with treatment Recommendations. The European Resuscitation Council (ERC) and American Heart Association (AHA) further tailored the guidelines to meet their specific needs. In this article we have discussed the new resuscitation guidelines for newborns issued by ILCOR, American Heart Association and European Resuscitation Council.
Unraveling the Design Principle for Motif Organization in Signaling Networks
Samrat Chatterjee, Dhiraj Kumar
PLOS ONE , 2011, DOI: 10.1371/journal.pone.0028606
Abstract: Cellular signaling networks display complex architecture. Defining the design principle of this architecture is crucial for our understanding of various biological processes. Using a mathematical model for three-node feed-forward loops, we identify that the organization of motifs in specific manner within the network serves as an important regulator of signal processing. Further, incorporating a systemic stochastic perturbation to the model we could propose a possible design principle, for higher-order organization of motifs into larger networks in order to achieve specific biological output. The design principle was then verified in a large, complex human cancer signaling network. Further analysis permitted us to classify signaling nodes of the network into robust and vulnerable nodes as a result of higher order motif organization. We show that distribution of these nodes within the network at strategic locations then provides for the range of features displayed by the signaling network.
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