48 research outputs found
Numerical solution of MHD slip flow of a nanofluid past a radiating plate with Newtonian heating : a lie group approach
In this paper, we have examined the magnetohydrodynamic flow of a nanofluid past a radiating sheet. The Navier velocity slip, Newtonian heating and passively controlled wall boundary conditions are considered. The governing equations are reduced into similarity equations with the help of Lie group. A collocation method is used for simulation. The influence of emerging parameters on velocity, temperature, nanoparticle volumetric fraction profiles, as well as on local skin friction factor and local Nusselt number are illustrated in detail. It is found that the friction (heat transfer rate) is lower (higher) for passively controlled boundary conditions as compared to the case of an actively controlled boundary condition. The magnetic field decreases both the skin friction and the rate of heat transfer. The findings are validated with existing results and found an excellent agreement. The model explores new applications in solar collectors with direct solar radiative input using magnetic nanofluids
Assessment Of The Knowledge And Awareness Towards The Aetiology And Diagnosis For Gingival Recession And Attitude Towards Its Management
Aim– The Aim of the study is to assess of the Knowledge and Awareness towards the aetiology and Diagnosis for Gingival Recession and attitude towards its management among interns and post-graduates.
Materials and Methods:Â 250 dental professionals including interns and postgraduates from diverse specialties participated in an online survey. This self-prepared questionnaire-based survey consisting of 14 questions was carried out at Rama dental college Kanpur for a period of 2 months.
Statistical analysis used:
Descriptive statistics have been used to summarize and describe the distributions of responses for each question. These statistics include measures like counts, percentages, means, and standard deviation. The Chi-square test and ANOVA test were used to analyze and compare the variables.
Results:54.8% of interns and postgraduates had good knowledge and attitude towards aetiology and management of gingival recession, 44.4% had intermediate knowledge whereas 0.8% had poor knowledge.
Conclusion: The study concluded that the Knowledge and Awareness towards the aetiology and Diagnosis for Gingival Recession and attitude towards its management among interns and postgraduates was good
Homotopy study of magnetohydrodynamic mixed convection nanofluid multiple slip flow and heat transfer from a vertical cylinder with entropy generation
Stimulated by thermal optimization in magnetic materials process engineering, the present work investigates theoretically the entropy generation in mixed convection magnetohydrodynamic (MHD) flow of an electrically-conducting nanofluid from a vertical cylinder. The mathematical includes the effects of viscous dissipation and second order velocity slip and thermal slip. The cylindrical partial differential form of the two-component non-homogenous nanofluid model has been transformed into a system of coupled ordinary differential equations by applying similarity transformations. The effects of governing parameters with no-flux nanoparticle concentration have been examined on important quantities of interest. Furthermore the dimensionless form of the entropy generation number has also been evaluated using the powerful homotopy analysis method (HAM). The present analytical results achieve good correlation with numerical results. Entropy is found to be an increasing function of second order velocity slip, magnetic field and curvature parameter. Temperature is elevated with increasing curvature parameter and magnetic parameter whereas it is reduced with mixed convection parameter. The flow is accelerated with curvature parameter but decelerated with magnetic parameter. Heat transfer rate (Nusselt number) is enhanced with greater mixed convection parameter, curvature parameter and first order velocity slip parameter but reduced with increasing second order velocity slip parameter. Entropy generation is also increased with magnetic parameter, second order slip velocity parameter, curvature parameter, thermophoresis parameter, buoyancy parameter and Reynolds number whereas it is suppressed with higher first order velocity slip parameter, Brownian motion parameter and thermal slip parameter
MHD slip flow and heat transfer of Al 2 O 3 -water nanofluid over a horizontal shrinking cylinder using Buongiorno’s model: Effect of nanolayer and nanoparticle diameter
The Effects of Climate Change on Natural Resources and Socio-economic Condition of Himalayan Communities of Uttarakhand, India
Volume 2 Issue 11 (November 2014
Knowledge, attitude and practice of epilepsy in Uttarakhand, India
<b>Objectives:</b> This study was conducted to find out knowledge, attitude and practice (KAP) of epilepsy among 12 <sup>th</sup> -class students in Uttarakhand state. Secondly data of Uttarakhand was compared with KAP study from other parts of the country. <b>Materials and</b> <b>Methods:</b> All 12 <sup>th</sup> - class students studying in six schools of randomly selected 36 villages in Chakrata block of Dehradun district of Uttarakhand state were provided a printed questionnaire having answer as "yes or no". This questionnaire used was used previously by various authors and validated for KAP analysis. These filled questionnaires were collected by village health workers and medical officer. <b>Results:</b> This study conducted on 219, 12 <sup>th</sup> -class students revealed that epilepsy was heard by 98%, 74.9% thought epilepsy a mental disease and 4.8% believed that it is contagious. Negative attitude showed as nearly 2/3 <sup>rd</sup> students stated that epilepsy is hindrance in marriage and occupation. Nearly 41% would use onion or shoe for terminating seizure attack. Ayurvedic treatment was preferred over allopathic drugs. <b>Conclusions:</b> Study on 12 <sup>th</sup> -class students of Uttarakhand revealed poor knowledge, attitude and practice for epilepsy and needs special education program to dispel these misconceptions
Neurocysticercosis and its impact on crude prevalence rate of epilepsy in an Indian community
Background : Community-based studies of epilepsy in India have reported
variable prevalence rates, 5−10/1000 population. Reasons for this
wide variation in the prevalence rates are uncertain. Most of the
earlier studies had not done appropriate investigations to establish
the possible etiology. Aim : To study the prevalence and etiological
profile of active epilepsy in the rural population of Uttarakhand.
Material and Methods : In this rural community-based study in the state
of Uttarakhand, a door-to-door survey was conducted using validated
questionnaire. All the suspected cases of epilepsy were examined by a
neurologist to confirm the diagnosis of epilepsy and all the confirmed
cases underwent contrast computed tomography (CT) scan and
electroencephalography (EEG). Epilepsy and epilepsy syndromes were
classified using the classifications proposed by the International
League Against Epilepsy. Results : Of the 14,086 population studied,
141 cases of active epilepsy were detected giving a crude prevalence
rate of 1%. After clinical evaluation and scanning, 35 (24.8%) were
found to have seizure disorder active neurocysticercosis (NCC) and 14
(9.9%) had remote symptomatic seizures related to calcified granuloma.
After excluding acute and remote symptomatic cases related to NCC,
prevalence rate of epilepsy was 6.5/1000. Conclusion : The study
suggests that the region-specific prevalence rates of epilepsy in India
are partly dependent on the prevalence of NCC in the given community.
To some extent, this may be responsible for variable rates of epilepsy
prevalence reported from different regions of the country
Efficacy of cucurmin and aloevera extracts gel as local drugs delivery agents
Introduction: The usage of antimicrobials as local drug delivery (LDD) agents in the treatment of periodontitis has posed limitations due to the development of bacterial resistance, high cost, and unavailability, thus indicating the need for safer and economic alternatives. Methodology: A split-mouth randomized clinical trial was carried out on 10 patients. Three sites in different quadrants were assigned, treatment modality of scaling and root planing (SRP) alone, SRP with LDD of curcumin gel, and SRP with LDD of 99% pure aloe vera gel, respectively. Clinical parameters were recorded at baseline and on 30th day postoperatively. Results: Curcumin and aloe vera in addition to SRP demonstrated improvements in clinical parameters, though 99% aloe vera extract produced more statistically significant results when used as an LDD agent, as shown in intergroup comparisons for changes in periodontal parameters. Conclusion: Curcumin 10mg (Curenext) and 99% aloe vera extract as LDD along with regular mechanical debridement is a promising therapy in the treatment of chronic periodontitis
Knowledge and perception about dental implant and its complications among dental and medical students—A comparative observational survey
Introduction: As dental implants become more widely used, there is a need to raise awareness about their potential complications. Professionals in the dental and medical fields must take responsibility for educating the public, and future professionals in these fields will play a key role in this effort. Methodology: Dental and medical students were polled through online questionnaire, with questions posed in multiple-choice format, to gauge their knowledge of dental implants. Result: When medical students were compared with dental students, it concluded that the dental students have more knowledge about implants and its complication. Conclusion: The statistical analysis revealed that the knowledge about basics of implantology and implant complications was good amongst dental students than medical students which was statistically significant