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Search Results: 1 - 10 of 308 matches for " Pramanik Raghunath "
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Cytological diagnosis of adamantinoma of long bone in a 78-year-old man
Gangopadhyay Mimi,Pramanik Raghunath,Chakrabarty Subrata,Bera Pranati
Journal of Cytology , 2011,
Abstract: A clinicohistopathological study of a rare case of adamantinoma of long bone in a 78-year-old patient is presented. The cytological features when evaluated in conjunction with clinical and radiologic features are sufficiently diagnostic. The primary knowledge of its existence and knowledge of its cytological features are important for a correct preoperative cytological diagnosis.
Cytopathological Dilemma of Anaplastic Sacral Chordoma with Radiological and Histological Corroboration
Arghya BANDYOPADHYAY,Bidyut KRISHNA GOSWAMI,Raghunath PRAMANIK,Kaushik MAJUMDAR
Türk Patoloji Dergisi , 2011,
Abstract: Chordoma is a relatively rare locally invasive and potentially malignant tumor of fetal notochord origin, affecting the axial skeleton. Cytopathological diagnosis of chordoma is favored by the presence of characteristic physaliphorous cells, bearing abundant foamy cytoplasm dispersed in a myxoid matrix. Anaplastic chordoma or dedifferentiated chordoma, an even rarer variant, can cause a diagnostic confusion with chondrosarcoma from the cytopathological point of view, with similar chondromyxoid matrix and atypical cells. Hence, chordoma bearing anaplastic features needs to be identified and should be distinguished from chondrosarcoma on aspiration cytopathology. We present a case of anaplastic sacral chordoma in a man 59 years of age, causing extensive destruction of sacrum and invading the paravertebral tissues as evidenced by radiology. Fine needle aspiration cytopathology revealed few large pleomorphic hyperchromatic cells, admixed with characteristic physaliphorous cells and myxoid matrix. The cytopathological diagnosis has been confirmed by histopathology and immunohistochemistry. Since anaplastic chordoma bears an unfavorable prognosis, it should be suspected on preoperative aspiration cytopathology. Clinicoradiological correlation along with histopathological and immunohistochemical confirmation is necessary subsequently.
Antioxidant and Phenolic Content of Nuts, Oil Seeds, Milk and Milk Products Commonly Consumed in India  [PDF]
Dande Sreeramulu, Manchala Raghunath
Food and Nutrition Sciences (FNS) , 2011, DOI: 10.4236/fns.2011.25059
Abstract: Food provides not only essential nutrients required for life, but also bioactive compounds usefull to maintan good health and disease prevention. Abundant epidemiological evidences suggest that consumption of food rich in antioxi-dants (non-nutritional components) can prevent degenerative diseases. A total of 26 commonly consumed nuts, oil seeds, edible oils, milk and milk products were chosen for the study. Considering the fact that antioxidant content (AOC) and phenolic contents (PC) of these foods was not established systematically in Indian context. Therefore, we have assessed and correlated the AOC and PC, an important antioxidant constituents of plant foods. AOC was assessed by DPPH (2, 2-Diphenyl-1-picryl hydrazyl) scavenging activity and FRAP (Ferric reducing antioxidant power) methods and phenolic content (PC), using Folin-Ciocalteu reagent. Among the nuts and oil seeds arecanut had the highest phenolic and antioxidant content 10841, 4220341 mg/100g respectively. In milk, edible oils and sugars the values ranged from 336 -11674 mg/100g. Jaggery had the highest PC and AOC among the foods studied . Although AOC and PC showed wide variation among the foods, AOC was correlated significantly with PC. Indeed the ‘r’ value between PC and AOC (DPPH and FRAP) was 0.99 (p < 0.01) among the nuts and oil seeds, while in milk, milk products and sugars, the “r” values ranged from 0.93 and 0.99 (p < 0.01) respectively. The overall results indicate that the phenolic compounds may be significant contributors to the AOC of the foods studied.
Essentials of Microbiology by Anuradha De. National Series
Raghunath D
Indian Journal of Medical Microbiology , 2010,
Abstract:
National antibiotic resistance surveillance and control
Raghunath D
Indian Journal of Medical Microbiology , 2010,
Abstract:
Comment on: "Clinical microbiology: Should microbiology be a clinical or a laboratory speciality?"
Raghunath D
Indian Journal of Pathology and Microbiology , 2011,
Abstract:
Malaria vaccine: Are we anywhere close?
Raghunath D
Journal of Postgraduate Medicine , 2004,
Abstract:
Transverse Energy Measurement and Fluctuation Studies in Ultra-Relativistic Heavy Ion Collisions
Raghunath Sahoo
Physics , 2008,
Abstract: Transverse energy ($E_T$) has been measured with both of it's components, namely hadronic ($E_T^{had}$) and electromagnetic ($E_T^{em}$) at mid-rapidity, for 62.4 GeV Au+Au collisions by the STAR experiment. In the common phase space of TPC and BEMC ($0 < \eta < 1$ and full $\phi$), we have obtained $E_T^{had}$ from the TPC reconstructed tracks and $E_T^{em}$ from the BEMC tower hits after correcting for the hadronic contaminations in the calorimeter. The centrality behavior of $/(0.5 N_{part})$ and the excitation function of $/(0.5 N_{part})$ has been compared with the final state gluon saturation model (EKRT) along with similar measurements from SPS to RHIC. The most striking feature is the observation of a nearly constant value of $E_T/N_{ch} \sim 0.8$ GeV from AGS, SPS to RHIC. The $E_T$ and $N_{ch}$ production has been observed to follow a logarithmic behavior. The initial energy density estimated by the boost-invariant Bjorken hydrodynamic model, is well above the lattice QCD value for a deconfined matter of Quarks and Gluons. Taking similar colliding species i.e. Au+Au, the $\epsilon_{Bj} .\tau$ has been predicted for LHC, based on the measurements at RHIC. We have also made predictions for $(dE_T/d\eta)/(0.5 N_{part})$ and $(dN_{ch}/d\eta)/(0.5 N_{part})$ for the LHC energy. Furthermore, we have studied the event-by event fluctuations in $E_T$ and in the ratio of it's components using $\sigma/\mu$ as the fluctuation observable.
A Transverse Lattice QCD Model for Mesons
Raghunath Ratabole
Physics , 2005,
Abstract: This thesis describes work done by me during my tenure as a Ph.D. student at the Centre for High Energy Physics, Indian Institute of Science, Bangalore. Chapter 1 is a brief introduction to QCD. In Chapter 2, we formulate QCD in the large-$N_{c}$ and strong transverse coupling limits, and then exactly integrate out all the gauge degrees of freedom to obtain the generating functional for quark-antiquark bilinears. We study the chiral properties of our limiting theory in Chapter 3, for naive as well as Wilson fermions, and obtain a recursive relation for the chiral condensate. In Chapter 4, we obtain the homogeneous integral equation satisfied by the meson states of our theory. Comparison of this equation with the corresponding one for the 't~Hooft model allows us to infer many physical meson properties. Our results are consistent with phenomenological expectations, and this is the first time that such results have been obtained from $(3+1)$-dim QCD, with only quark and gluon degrees of freedom and no ad hoc model assumptions. Extraction of precise values requires numerical solution of the integral equation; we have not yet carried that out and we describe our outlook for further investigations at the end of Chapter 4. Three appendices supplement our analysis. Our notation and conventions are listed in Appendix A. The known results for mesons in the 't~Hooft model and in strong coupling lattice QCD are rederived, in Appendix B and in Appendix C respectively, using the same methodology as followed in the thesis. That allows convenient comparison, as well as demonstrates the advantage of our approach over these two well-studied approximations to QCD.
Concerning Riemann Hypothesis
Raghunath Acharya
Mathematics , 2009,
Abstract: We present a quantum mechanical model which establishes the veracity of the Riemann hypothesis that the non-trivial zeros of the Riemann zeta-function lie on the critical line of $\zeta(s)$.
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