83 research outputs found

    Economics and Marketing of Aromatic Rice - A Case Study of Chhattisgarh

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    In recent years there has been a serious concern among the farmers, scientists, policymakers and environmentalists regarding the continuous erosion of genetic biodiversity of rice cultivars in Chhattisgarh which has traditionally been known as bowl of scented rices in central India. In view of India’s potential competitiveness in aromatic rices in the international market, it is imperative to understand the dynamics of domestic trade in aromatic rice. In this study, marketing and price-spread patterns of aromatic rice in the state of Chhattisgarh have been examined. A few policy interventions have been suggested for promoting aromatic rices in the state.Crop Production/Industries, Marketing,

    Dispersion aerosol indirect effect in turbulent clouds: Laboratory measurements of effective radius

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    Cloud optical properties are determined not only by the number density nd and mean radius ṝ of cloud droplets but also by the shape of the droplet size distribution. The change in cloud optical depth with changing nd, due to the change in distribution shape, is known as the dispersion effect. Droplet relative dispersion is defined as d=σr / ṝ . For the first time, a commonly used effective radius parameterization is tested in a controlled laboratory environment by creating a turbulent cloud. Stochastic condensation growth suggests d independent of nd for a nonprecipitating cloud, hence nearly zero albedo susceptibility due to the dispersion effect. However, for size‐dependent removal, such as in a laboratory cloud or highly clean atmospheric conditions, stochastic condensation produces a weak dispersion effect. The albedo susceptibility due to turbulence broadening has the same sign as the Twomey effect and augments it by order 10%

    Common causes and trends of hepatocellular carcinoma at regional cancer centre Raipur, India

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    Background: Hepatocellular Carcinoma (HCC) is the most common primary malignancy of the liver and is the third most common cause of cancer related deaths in Asia-pacific region. Representative data on epidemiology of HCC in India is scanty and mostly from urban areas. It is more common in males then female. Hepatitis, alcohol consumption, aflatoxin and other hepatotoxins in diet are common causes. Authors did a study for the common causes and trends of the HCC registered at authors’ centre between January 2013 to November 2018.Methods: Authors analyzed their hospital data for the patient registered with the diagnosis of hepatocellular carcinoma at their centre during the study period for age, sex, number and causes.Results: Out of 23,766 patients registered for cancer in study period, 132 (0.55%) patients were of HCC, of which 89 (66.4%) were males and 43 (32.6%) were females, with ratio of 2:1. Commonest age group was between 50-59 years 46 (34.6%) followed by 40-49years 26 (19.5%). No patients were below 20 years of age. Among the commonest causes were alcohol consumption in 71 (53.4%), hepatitis B in 37 (27.8%), hepatitis C in 10 (7.5%), HIV in 4 (3%) and unknown in 11 (8.3%). There is rising trend in males and declining trend in females.Conclusions: Incidence of hepatocellular carcinoma is low among all cancer but has high mortality rate. Alcohol consumption and hepatitis were the commonest cause. It is common above 40 years specially in males

    Retrospective study on efficacy and safety of nanoparticle paclitaxel and concurrent radiotherapy in patients with advanced head and neck cancer

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    Background: Advanced (Stage III and IV) Squamous Cell Carcinomas of the head and neck (SCCHN) produce severe functional impairment, considerable morbidity, and significant mortality. Over the past 2 decades, organ-sparing efforts using either induction chemotherapy or concurrent chemotherapy and radiotherapy (RT) have become popular and have demonstrated equivalent or superior survival rates compared with surgery and/or RT alone, with a survival rate of approximately 40% at 5 years. Although the addition of chemotherapy to RT enhances toxicity, randomized trials and meta analyses have documented improved survival clearly compared with the results from RT alone. Initially, most combinations included once-daily RT combined with cisplatin either alone or with 5-fluorouracil (5-FU). There was number of toxicities of high grades associated with these drugs, and also difficulty in their administration. We have retrospectively studied nanoparticle paclitaxel with RT on concurrent setting as an alternative.Methods: We have retrospectively studied  data of patients of advanced SCCHN treated with nanoparticle paclitaxel along with RT. Nanoparticle paclitaxel was administered at a dose of 80 mg/m2 over one hour infusion once weekly along with RT, 60 Gray (Gy) in 30 fractions, five days per week, over 6 weeks.Results: Total numbers of patient in this study were 28 with median age of 49 years. 78.57% of patient had stage IV disease and 21.43% stage III. Overall response rate was 68% with complete response (CR) in 29% and partial response (PR) in 39%.Conclusions: The use of nanoparticle paclitaxel along with RT is safe, feasible, efficacious and cost effective. Intensive randomized studies with large sample size are required in this direction.

    Dynamic Analysis of HSDB System and Evaluation of Boundary Non-linearity through Experiments

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    This paper deals with mechanical design and development of high speed digital board (HSDB) system which consists of printed circuit board (PCB) with all electronic components packaged inside the cavity for military application. The military environment poses a variety of extreme dynamic loading conditions, namely, quasi static, vibration, shock and acoustic loads that can seriously degrade or even cause failure of electronics. The vibrational requirement for the HSDB system is that the natural frequency should be more than 200 Hz and sustain power spectrum density of 14.8 Grms in the overall spectrum. Structural integrity of HSDB is studied in detail using finite element analysis (FEA) tool against the dynamic loads and configured the system. Experimental vibration tests are conducted on HSDB with the help of vibration shaker and validated the FE results. The natural frequency and maximum acceleration response computed from vibration tests for the configured design were found. The finite element results show a good correlation with the experiment results for the same boundary conditions. In case of fitment scenario of HSDB system, it is observed that the influence of boundary non-linearity during experiments. This influence of boundary non-linearity is evaluated to obtain the closeout of random vibration simulation results

    Exploring the Enhanced Performance of a Static Synchronous Compensator with a Super-Capacitor in Power Networks

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    The use of a super-capacitor as a storage device integrated with a Voltage source converter-based shunt-connected Static Synchronous Compensator (STATCOM) is proposed for improving the STATCOM performance during sudden large disturbances in a power network. The super-capacitor was applied across the STATCOM capacitor during the disturbance condition. MATLAB simulations were carried out for the verification of a secondary function of the STATCOM like oscillation damping, transient stability improvement, and security of the power network with the storage device. The validation of the proposed super-capacitor was carried out in MATLAB

    Prevalence of goitre, iodine uptake and salt iodization level in Mahasamund district of Chhattisgarh: a baseline study in Central India

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    Background: Iodine deficiency disorder (IDD) is the single most important preventable cause of brain damage. Iodine deficiency disorders (IDDs) refer to all of the consequences of iodine deficiency in a population, which can be prevented by taking adequate amount of Iodine.  The objectives was to ascertain the prevalence goitre among 6-12 year children by clinical examination in Mahasamund district; 2) to document the iodine uptake status reflected by random urinary excretion levels in a sub-sample of 6-12 year children covered for clinical examination, and 3) to evaluate the coverage of iodized salt at community level (i.e. at household and retail shop) on-the-spot test by using rapid salt testing kit.Methods: A cross sectional community based survey was done in Mahasamund district during April 2015 to September 2015. The study population was children in the age group of 6-12 years. 30 cluster sampling methodology was applied using PPS sampling technique, based on latest survey guidelines of NIDDCP of Govt. of India. The parameters studied were prevalence of goitre, urinary iodine excretion, and iodine content in salt at community level (i.e. household and shop).Results: A total of 2700 children aged from 6-12 years were assessed clinically for goitre. The total goitre prevalence was 4.29% (95% CI: 3.3-5.27). The median urinary iodine excretion (MUIE) was 106.67μg/L (range 11-216.7μg /L) among surveyed children.  37.4% of the urinary iodine excretion values were <100 μg/L. The households consuming inadequately iodized salt (i.e. iodine content ≤15 ppm) was 20% in the surveyed district.Conclusions: Although prevalence of goitre and median urinary iodine excretion among surveyed population was found satisfactory against the norms set by NIDDCP in surveyed district but universal salt iodization (USI) is yet to achieve in surveyed district.

    A laboratory facility to study gas-aerosol-cloud interactions in a turbulent environment: The Π Chamber

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    A detailed understanding of interactions of aerosols, cloud droplets/ice crystals, and trace gases within the atmosphere is of prime importance for an accurate understanding of Earth’s weather and climate. One aspect that remains especially vexing is that clouds are ubiquitously turbulent, and therefore thermodynamic and compositional variables, such as water vapor supersaturation, fluctuate in space and time. With these problems in mind, a multiphase, turbulent reaction chamber—called the Π chamber because of the internal volume of 3.14 m3 with the cylindrical insert installed—has been developed. It is capable of pressures ranging from 1,000 to –60 hPa and can sustain temperatures of –55° to 55°C, thereby spanning much of the range of tropospheric clouds. To control the relative humidity in the chamber, it can be operated with a stable, unstable, or neutral temperature difference between the top and bottom surfaces, with or without expansion. A negative temperature difference induces turbulent Rayleigh–Bénard convection and associated supersaturation generation through isobaric mixing. Supporting instrumentation includes a suite of aerosol generation and characterization techniques; temperature, pressure, and humidity sensors; and a phase Doppler interferometer. Initial characterization experiments demonstrate the ability to sustain steady-state turbulent cloud conditions for times greater than 1 day, with droplet diameters typically in the range of 5–40 µm. Typical turbulence has root-mean-square velocity fluctuations on the order of 10 cm s–1 and kinetic energy dissipation rates of 1 × 10–3 W kg–1

    Thermoluminescence and Mechanoluminescence studies of (Cd0.95 Zn0.05)S: Ag doped phosphor

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    Through the execution of experimental investigation, mechanoluminescence of (Cd,Zn)S: Ag phosphor was studied which is synthesized by solid state reaction. In the observation, the peak value of ML depends on different concentration. It is seen that ML intensity increases with Ag ion concentration in (Cd, Zn)S phosphor. The peak value of TL depends on the different UV-irradiation time. It is seen that as UV-irradiation exposure increases the TL intensity also increases
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