12 research outputs found
Pre- and Post-WTO Changes in Oilseed Economy of Karnataka: A Case of Groundnut
The growth in exports, economics of production and global competitiveness of groundnut has been reported over the period of 20 years (1984-85 to 2004-05) in Karnataka by collecting data from various published sources. Techniques used for the analysis are growth functions, tabular function, nominal protection coefficient and domestic resource cost. The analysis of export trends of groundnut from 1985-86 to 2004-05 has shown that quantity of groundnut export has grown annually at a compound growth rate of 9.52 per cent, whereas the value of groundnut exported has grown at a much higher rate of 13.13 per cent. Structural changes in costs are due to changes in quantity and quality of inputs associated with the technological process and also due to their prices. Groundnut has shown competitive disadvantage during the pre-WTO period, as values of NPC and DRC are more than one. But, during the post-WTO period, the competitiveness has increased as is evident from the NPC and DRC values which turned out be less than one. The study has suggested to exploit the competitiveness of Karnataka in groundnut and other oilseed crops.International Relations/Trade,
Diffusion of particles moving with constant speed
The propagation of light in a scattering medium is described as the motion of
a special kind of a Brownian particle on which the fluctuating forces act only
perpendicular to its velocity. This enforces strictly and dynamically the
constraint of constant speed of the photon in the medium. A Fokker-Planck
equation is derived for the probability distribution in the phase space
assuming the transverse fluctuating force to be a white noise. Analytic
expressions for the moments of the displacement along with an
approximate expression for the marginal probability distribution function
are obtained. Exact numerical solutions for the phase space
probability distribution for various geometries are presented. The results show
that the velocity distribution randomizes in a time of about eight times the
mean free time () only after which the diffusion approximation becomes
valid. This factor of eight is a well known experimental fact. A persistence
exponent of is calculated for this process in two dimensions
by studying the survival probability of the particle in a semi-infinite medium.
The case of a stochastic amplifying medium is also discussed.Comment: 9 pages, 9 figures(Submitted to Phys. Rev. E
Imaginary Potential as a Counter of Delay Time for Wave Reflection from a 1D Random Potential
We show that the delay time distribution for wave reflection from a
one-dimensional random potential is related directly to that of the reflection
coefficient, derived with an arbitrarily small but uniform imaginary part added
to the random potential. Physically, the reflection coefficient, being
exponential in the time dwelt in the presence of the imaginary part, provides a
natural counter for it. The delay time distribution then follows
straightforwardly from our earlier results for the reflection coefficient, and
coincides with the distribution obtained recently by Texier and Comtet
[C.Texier and A. Comtet, Phys.Rev.Lett. {\bf 82}, 4220 (1999)],with all moments
infinite. Delay time distribution for a random amplifying medium is then
derived . In this case, however, all moments work out to be finite.Comment: 4 pages, RevTeX, replaced with added proof, figure and references. To
appear in Phys. Rev. B Jan01 200
Pre- and Post-WTO Changes in Oilseed Economy of Karnataka: A Case of Groundnut
The growth in exports, economics of production and global competitiveness
of groundnut has been reported over the period of 20 years (1984-85 to
2004-05) in Karnataka by collecting data from various published sources.
Techniques used for the analysis are growth functions, tabular function,
nominal protection coefficient and domestic resource cost. The analysis
of export trends of groundnut from 1985-86 to 2004-05 has shown that
quantity of groundnut export has grown annually at a compound growth
rate of 9.52 per cent, whereas the value of groundnut exported has grown
at a much higher rate of 13.13 per cent. Structural changes in costs are due
to changes in quantity and quality of inputs associated with the
technological process and also due to their prices. Groundnut has shown
competitive disadvantage during the pre-WTO period, as values of NPC
and DRC are more than one. But, during the post-WTO period, the
competitiveness has increased as is evident from the NPC and DRC values
which turned out be less than one. The study has suggested to exploit the
competitiveness of Karnataka in groundnut and other oilseed crops
Effect of Non Surgical Periodontal Therapy on Gingival Crevicular Fluid and Serum Visfatin Concentration in Periodontal Health and Disease
Visfatin is a pleiotropic mediator which acts as growth factor, cytokine, enzyme involved in energy including nicotinamide adenine dinucleotide metabolism and has been recently demonstrated to exert several pro-inflammatory functions. The purpose of this study is to evaluate the Visfatin concentration in gingival crevicular fluid (GCF) and serum in patients with chronic periodontitis, and to evaluate the effect of non-surgical periodontal therapy on the GCF and serum visfatin concentration. 30 subjects (age range: 25 to 52 years) were selected and divided into two groups based on the gingival index, probing depth, periodontal attachment level, and radiologic parameters (bone loss): group 1 (15 subjects with healthy periodontium), group 2 (15 subjects with chronic periodontitis), while, Group 2 patients after 8 weeks of the treatment (scaling and root planning, SRP) constituted group 3. GCF samples (by microcapillary pipettes) and serum samples (by venipuncture) were collected to estimate the levels of Visfatin using enzyme linked immunosorbent assay kit. The mean Visfatin concentration in GCF and serum was observed to be the highest in group 2 and lowest in group 1. While concentration in group 3 was similar to group 1. The concentration of Visfatin in GCF and serum decreased after SRP. The Visfatin concentration in GCF and serum found to be highest in chronic periodontitis group and decreases after treatment. Hence Visfatin values can be considered as an “inflammatory marker” can be explored in future as a potential therapeutic target in the treatment of periodontal disease