Browsing by Issue Date, starting with "2004"

Now showing 1 - 20 of 367

A trial to determine the role of placental extract in the treatment of chronic non-healing wounds.
(2004) V.K. Shukla; M.A. Rasheed; M. Kumar; S.K. Gupta; S.S. Pandey
OBJECTIVE: To investigate the effect of topical placental extract in the treatment of non-healing wounds. METHOD: One hundred patients attending the wound clinic at University Hospital, Varanasi, India, with wounds of more than six weeks' duration were recruited. Fifty patients were treated with placental extract, and 50 were controls. Wound biopsy and swab culture and sensitivity were performed and the area surrounding the wound was X-rayed. Wound size was measured and the rate of epithelialisation assessed at weekly follow-ups. In nine cases biopsies were repeated after two weeks of treatment and sent for histopathological examination, including angiogenesis. RESULTS: Thirty patients dropped out, leaving 40 cases in the treatment group and 30 in the control group. Over an eight-week period, 27 patients (67.5%) in the treatment group showed more than 50% epithelialisation, compared with only seven patients (23.3%) in the control group. CONCLUSION: Placental extract has a beneficial role to play as a topical agent in the management of chronic non-healing wounds.
Control of Intra-Operative Hemorrhage during Excision of Carotid Body Tumor
(John Wiley and Sons Inc, 2004) Mallika Tewari; Anurag Dixit; Ritesh Mongha; Hari S. Shukla
[No abstract available]
Signatures of Palaeofloods in Sandbar-Levee Deposits, Ganga Plain, India
(2004) U.K. Shukla; I.B. Singh
Based on architectural element analysis of sandbar-levee deposits an attempt has been made to identify recurring floods in the alluvial rivers. Point bar deposits characterized by low-angled lateral accretion (LA) elements exhibit some channel-ward steeply dipping (18-20°) discordant surfaces. These high-angled surfaces are erosional and show change of facies across them. Such discordant planes present within the bar deposits most probably indicate phases of exceptional floods, when the bar was mostly eroded abd remodelled under high-energy conditions. Similarly, in the braid bar deposits superimposed bar-building events separated either by mud drapes or marked erosional contacts are testimony to high-energy floods. At flood times, a new bar may form and can migrate over pre-existing sand bar, forming huge sandflat. Alternately, a new channel may develop cutting across the existing bar complex producing a channel bar having a different orientation. Multi-storied levee deposits developed at the bank of the channels, and characterized by decimeter to meter scale fining-up sequences, are the best indicators of exceptionally large floods overtopping the channels. The flood events are commonly separated by erosional contacts and mottled horizons containing organic matter, root burrows and faecal-pellet filled earthworm burrow network. © Geol. Soc. India.
Vertical successions of channel bar, point bar and natural levee deposits, Ganga and Yamuna river, Allahabad, U.P
(2004) G.S. Tiwari; R.N. Tiwari; K.N. Singh
The modern sediments of Ganga and Yamuna rivers at Allahabad. Uttar Pradesh are studied in 17 vertical sections of channel bar. point bar and natural levee deposits. Based on this study nine lithofacies, i.e. St. SP2, Sp1, Sr1, Sr2, Sl. Sh. Fl and Fm (8-Sand and l- Mud sub-lithofacies) have been identified. An attempt has been made to evolve a generalised lithofacies succession for channel bar, point bar and natural levee deposits. The channel bar exhibits the lithofacies succession of SP2, Spl, Sr2, Sr1 Sh and Fl; St, SP2, Sp 1, Sr1, Sh and Fl succession m point bar and SP2, Sp1, Sr1, Sh. Fl and Fm lithofacies succession in natural levee deposits. No major difference in channel bar and point bar lithofacies succession have been found. The point bars are characterised by trough cross-bedded lithofacies - St, which are formed by the migration of 3-D dunes. The Fm lithofacies is characteristics of natural levee, the muddy deposits often show desiccation cracks. Deposition of mud takes place in low energy conditions mostly during receding floods. © Geol. Soc. India.
Analytical solution of the Ornstein-Zernike equation for the structure factor of ordered plasmas using Sogami-Ise potential
(2004) Rakesh Kumar Pandey; Deep Narayan Tripathi
An analytic solution of Ornstein-Zernike (OZ) equation for the structure factor for plasmas has been obtained using Sogami-Ise (SI) potential amongst plasma particles that contains attractive tail at large distances. Pastore et al.'s criterion and a characteristic feature of the pair interaction potential have helped in reaching to the final expressions. The calculated structure factors compare well with that obtained by using Pastore et al.'s expressions derived with the Derjaguin, Landau, Verwey and Overbeek (DLVO) potential in case of H+-plasmas. The excess energy per particle and the values of the compressibility determined with the help of the calculated structure factors in the limit of momentum transfer becoming zero have been reported. © 2004 The Physical Society of Japan.
Chitosan Based Periodontal Pocket Inserts - Formulation, In vitro and Preliminary Clinical Evaluation
(2004) J. Balasubramaniam; M. Thilek Kumar; Romi Barat; J.K. Pandit; Neelam Mittal
The present paper concerns the in vitro and clinical evaluation of chitosan based periodontal inserts of ciprofloxacin hydrochloride (CPH). The effects of polymer concentration, plasticizer, drug loading and type and concentration of cross-linking agents (formaldehyde and glutaraldehyde) on CPH release were studied. The release of CPH followed a Q vs t1/2 profile. An increase in the plasticizer concentration (propylene glycol and glycerol) and drug loading resulted in a higher rate of CPH release, but the type of plasticizer did not show any significant effect on drug release, whereas retardation was observed with an increase in polymer concentration and cross-linking. Clinical evaluations of the inserts were carried out in patients suffering from periodontitis with an average pocket depth of > 5 mm. Significant improvements were observed in various clinical indices as: Peridontal Index (PI), Bleeding Index (BI), Periodontal Disease Index (PDI), Shick-Ash Modification of Plaque Criteria (SAPC) and Gingival Index (GI) and microbial parameters (% of G (+)and G (-) bacteria and Total Bacterial Count - TBC) at the device inserted site, thus affirming the therapeutic value of the inserts in the treatment of periodontal pocket formation.
Effect of undernutrition and subsequent rehabilitation on brain 5-HT (serotonin) profile of developing newborn rats
(2004) K.P. Singh; A.K. Sanyal
For littermate comparison, undernutrition in half of the pups of a litter was induced by 12h maternal deprivation from day 5 to day 18 postnatal. Subsequently, undernourished suckling rats were rehabilitated. Brain 5-HT concentrations and its turnover rate were measured on different days of age up to the period of 3 months. Brain 5-HT concentration was approximately half of the adult level at birth and increased progressively, except with a steep fall on day 18 postnatal, to the adult level by day 25 postnatal and thereafter it did not vary much on different days of age. Undernourished newborn rats showed significantly low level of brain 5-HT on day 9 and significantly higher concentrations on day 12 and 18 postnatal, whereas, rehabilitated rats showed comparable brain 5-HT concentrations with that of their nourished littermates. It is concluded that undernutrition had affected the brain 5-HT concentration and its turnover rate. Brain 5-HT concentration was low during early phase and was more during late phase of undernutrition. Rehabilitation of undernourished rats restored the brain 5-HT concentration similar to that of their nourished littermates.
AC impedance studies on the molecular semiconductors based on aromatic diamines-iodine charge-transfer complexes
(2004) R.K. Gupta; R.A. Singh
Molecular semiconductors based on charge-transfer complexes of benzidine, o-olidine and N, N′-diphenylbenzidine with iodine having different mole ratios have been prepared and characterized by thermal, spectral and electrical methods. The thermal decomposition behaviour of these materials indicate that they are thermally stable up to 130°C and then proceed to stoichiometric weight loss corresponding to iodine and aromatic diamines respectively. The electrical conductivity has its highest value for N, N′-diphenylbenzidine- iodine complexes and lowest for benzidine-iodine complexes which may be due to more extensive conjugation of radical cation in the former than in the later. Impedance studies show (RC(RC), R (RC) and (RC) equivalent circuit for benzidine, o-tolidine and N, N′-diphenylbenzidine-iodine complexes respectively. The electrical data have been discussed in light of dynamic bond percolation model in which the distribution, density and availability of potential hopping sites change as a result of electronic and structural changes in the material.
Geochemistry and petrogenesis of early Cretaceous sub-alkaline mafic dykes from Swangkre-Rongmil, East Garo Hills, Shillong plateau, northeast India
(Indian Academy of Sciences, 2004) Rajesh K. Srivastava; Anup K. Sinha
Numerous early Cretaceous mafic and alkaline dykes, mostly trending in N-S direction, are emplaced in the Archaean gneissic complex of the Shillong plateau, northeastern India. These dykes are spatially associated with the N-S trending deep-seated Nongchram fault and well exposed around the Swangkre-Rongmil region. The petrological and geochemical characteristics of mafic dykes from this area are presented. These mafic dykes show very sharp contact with the host rocks and do not show any signature of assimilation with them. Petrographically these mafic dykes vary from fine-grained basalt (samples from the dyke margin) to medium-grained dolerite (samples from the middle of the dyke) having very similar chemical compositions, which may be classified as basaltic-andesite/andesite. The geochemical characteristics of these mafic dykes suggest that these are genetically related to each other and probably derived from the same parental magma. Although, the high-field strength element (+rare-earth elements) compositions disallow the possibility of any crustal involvement in the genesis of these rocks, but Nb/La, La/Ta, and Ba/Ta ratios, and similarities of geochemical characteristics of present samples with the Elan Bank basalts and Rajmahal (Group II) mafic dyke samples, suggest minor contamination by assimilation with a small amount of upper crustal material. Chemistry, particularly REE, hints at an alkaline basaltic nature of melt. Trace element modelling suggests that the melt responsible for these mafic dykes had undergone extreme differentiation (∼ 50%) before its emplacement. The basaltic-andesite nature of these rocks may be attributed to this differentiation. Chemistry of these rocks also indicates ∼ 10-15% melting of the mantle source. The mafic dyke samples of the present investigation show very close geochemical similarities with the mafic rocks derived from the Kerguelen mantle plume. Perhaps the Swangkre-Rongmil mafic dykes are also derived from the Kerguelen mantle plume.© Printed in India.
Residual breast tissue in the skin flaps after Patey mastectomy
(2004) Mallika Tewari; Kundan Kumar; Mohan Kumar; H.S. Shukla
Background & objectives: Patey mastectomy implies complete removal of breast tissue. Likely area where residual breast tissue may be left is under the skin flaps. There is no study examining left over breast tissue under the Patey mastectomy skin flap. The present study was undertaken to study the presence of residual breast tissue in skin flaps after Patey mastectomy in patients with breast cancer. Methods: In 37 patients of breast cancer undergoing Patey mastectomy, biopsy from under the skin flap at central point of 4 quadrants (upper outer, upper inner, lower inner and lower outer), 3 cm from cut margin of skin was taken to examine for residual breast tissue. Results: In 8 of 37 (21.6%) cases residual breast tissue and in 3 of these (37.5%) tumour tissue was found under the skin flap. Interpretation & conclusion: Overall in 21.6 per cent biopsies from under the skin flap revealed information of probable therapeutic importance. This information may in future serve as an additional prognostic factor to consider irradiation to reduce the incidence of local recurrence in flap positive patients.
Rotordynamic characteristics of a multilobe hybrid journal bearing in turbulent lubrication
(Professional Engineering Publishing, 2004) M.K. Ghosh; A. Nagraj
This paper presents an investigation of the rotordynamic behaviour of a four-lobe orifice compensated hybrid bearing. It aims to show that multilobe hybrid journal bearings prove to be a better alternative for high-speed turbo pump applications. © IMechE 2004.
Synthesis and mechanical characterization of polymer-matrix composites containing calcium carbonate/white cement filler
(2004) U.S. Rai; R.K. Singh
With a view to develop polymer-matrix composites of high mechanical strength, composites containing 0.5% to 5.0% of each of calcium carbonate or white cement were prepared by uniformly mixing polystyrene and inorganic materials followed by casting in an aluminum mold. The values of fracture toughness, flexural strength and elastic modulus were found to increase with increasing amount of the inorganic component in the polymer. In addition, for a given percentage of inorganic components, the values of mechanical strength of white cement containing composites were found to be more than those of calcium carbonate containing composites. The optical microphotographs of the composites show that there is uniform distribution of filler in the polymers. © 2003 Elsevier B.V. All rights reserved.
Analysis of topological organization of chromatin during spermatogenesis in mouse testis
(Brazilian Journal of Genetics, 2004) Gopeshwar Narayan; Rajiva Raman
Eukaryotic chromatin is organized as radial DNA loops with periodical attachments to an underlying nucleoskeleton known as nuclear matrix. This higher order chromatin organization is revealed upon high salt extraction of cells. To understand the sequential change in the functional organization of chromatin during spermatogenesis, we have analysed the higher order organization of chromatin in different testicular cell types and the epididymal sperm of laboratory mouse. The expansion and contraction of the nucleoid DNA following 2 M NaCl extraction was measured in a fluorescence microscope using ethidium bromide (2.5-200 μg/mL) as an intercalating dye to induce DNA positive supercoils. While the halo size varied among cell types (pachytene DNA most extended, round spermatid least), 5 μg/mL ethidium bromide (EtBr) removed maximum negative supercoils in all the cell types. At higher EtBr concentrations, maximum positive supercoiling occured in pachytene DNA loops. Consistent with this, the pachytene looped domains were maximally sensitive to DNase I, while the elongated spermatids and sperms were highly resistant. Our data suggest that pachytene DNA is in the most open chromatin conformation of all testicular cell types, while round spermatids show the most compact conformation in terms of EtBr intercalation. Copyright by the Brazilian Society of Genetics.
Anatomical variations of the splenic artery and its clinical implications
(2004) S.K. Pandey; S. Bhattacharya; R.N. Mishra; V.K. Shukla
The variations in orgin, course, and terminal branching pattern of the splenic artery were studied in 320 cadavers. The artery originated from the coeliac trunk in the majority of cadavers (90.6%), followed by abdominal aorta (8.1%), and other sights (1.3%). A suprapancreatic course of the artery was commonly observed (74.1%) followed by enteropancreatic (18.5%), intrapancreatic (4.6%), and retropancreatic (2.8%) courses. In two cases (0.63%) the proximal part of the splenic artery made a loop that was embedded in the substance of the pancreas, which is an interesting and rare finding. In five cases (1.5%) the proximal part of the artery divided into two or more branches that had suprapancreatic and enteropancreatic courses. The splenic artery divided into terminal branches in 311 (97%) cadavers. In nine (2.8%) cadavers it passed through the hilum of spleen without dividing. Two terminal branches were the most common (63.1%) followed by four (18.8%), six (9.7%), and more than six (5.6%) branches. The present study clearly indicates that there is variation in origin, course, and terminal distribution pattern of the splenic artery. The knowledge of these variations are of significant importance during surgical and radiological procedure of upper abdominal region to avoid any catastrophic complications. © 2004 Wiley-Liss, Inc.
Some physicochemical studies on binary organic eutectic and monotectic alloys: P-dibromobenzene-m-aminophenol system
(2004) U.S. Rai; Pinky Pandey
The phase diagram of p-dibromobenzene-m-aminophenol system, determined by the thaw-melt method, shows the formation of a eutectic at 86.8 °C and a monotectic at 120.0 °C at 0.9899 and 0.0496 mole fractions of p-dibromobenzene, respectively. Growth data for the pure components, the eutectic and the monotectic, determined by measuring the rate of movement of solid-liquid interface in a capillary at different undercoolings (ΔT) suggest the applicability of Hillig-Turnbull equation, v=u (ΔT) n, where u and n are constants depending on the nature of materials involved. The values of enthalpy of fusion of the pure components, the eutectic and the monotectic were determined and from these values, the enthalpy of mixing, entropy of fusion, Jackson's roughness parameter and excess thermodynamic functions were calculated. Optical microphotographs of the pure and binary materials show their characteristic features. © 2004 published by Elsevier B.V.
Bose-einstein correlations of charged pion pairs in Au + Au collisions at √sNN = 200 GeV
(2004) S.S. Adler; S. Afanasiev; C. Aidala; N.N. Ajitanand; Y. Akiba; J. Alexander; R. Amirikas; L. Aphecetche; S.H. Aronson; R. Averbeck; T.C. Awes; R. Azmoun; V. Babintsev; A. Baldisseri; K.N. Barish; P.D. Barnes; B. Bassalleck; S. Bathe; S. Batsouli; V. Baublis; A. Bazilevsky; S. Belikov; Y. Berdnikov; S. Bhagavatula; J.G. Boissevain; H. Borel; S. Borenstein; M.L. Brooks; D.S. Brown; N. Bruner; D. Bucher; H. Buesching; V. Bumazhnov; G. Bunce; J.M. Burward-Hoy; S. Butsyk; X. Camard; J.-S. Chai; P. Chand; W.C. Chang; S. Chernichenko; C.Y. Chi; J. Chiba; M. Chiu; I.J. Choi; J. Choi; R.K. Choudhury; T. Chujo; V. Cianciolo; Y. Cobigo; B.A. Cole; P. Constantin; D.G. d'Enterria; G. David; H. Delagrange; A. Denisov; A. Deshpande; E.J. Desmond; O. Dietzsch; O. Drapier; A. Drees; R. du Rietz; A. Durum; D. Dutta; Y.V. Efremenko; K. El Chenawi; A. Enokizono; H. En'yo; S. Esumi; L. Ewell; D.E. Fields; F. Fleuret; S.L. Fokin; B.D. Fox; Z. Fraenkel; J.E. Frantz; A. Franz; A.D. Frawley; S.-Y. Fung; S. Garpman; T.K. Ghosh; A. Glenn; G. Gogiberidze; M. Gonin; J. Gosset; Y. Goto; R. Granier de Cassagnac; N. Grau; S.V. Greene; M. Grosse Perdekamp; W. Guryn; H.-Å. Gustafsson; T. Hachiya; J.S. Haggerty; H. Hamagaki; A.G. Hansen; E.P. Hartouni; M. Harvey; R. Hayano; X. He; M. Heffner; T.K. Hemmick; J.M. Heuser; M. Hibino; J.C. Hill; W. Holzmann; K. Homma; B. Hong; A. Hoover; T. Ichihara; V.V. Ikonnikov; K. Imai; D. Isenhower; M. Ishihara; M. Issah; A. Isupov; B.V. Jacak; W.Y. Jang; Y. Jeong; J. Jia; O. Jinnouchi; B.M. Johnson; S.C. Johnson; K.S. Joo; D. Jouan; S. Kametani; N. Kamihara; J.H. Kang; S.S. Kapoor; K. Katou; S. Kelly; B. Khachaturov; A. Khanzadeev; J. Kikuchi; D.H. Kim; D.J. Kim; D.W. Kim; E. Kim; G.-B. Kim; H.J. Kim; E. Kistenev; A. Kiyomichi; K. Kiyoyama; C. Klein-Boesing; H. Kobayashi; L. Kochenda; V. Kochetkov; D. Koehler; T. Kohama; M. Kopytine; D. Kotchetkov; A. Kozlov; P.J. Kroon; C.H. Kuberg; K. Kurita; Y. Kuroki; M.J. Kweon; Y. Kwon; G.S. Kyle; R. Lacey; V. Ladygin; J.G. Lajoie; A. Lebedev; S. Leckey; D.M. Lee; S. Lee; M.J. Leitch; X.H. Li; H. Lim; A. Litvinenko; M.X. Liu; Y. Liu; C.F. Maguire; Y.I. Makdisi; A. Malakhov; V.I. Manko; Y. Mao; G. Martinez; M.D. Marx; H. Masui; F. Matathias; T. Matsumoto; P.L. McGaughey; E. Melnikov; F. Messer; Y. Miake; J. Milan; T.E. Miller; A. Milov; S. Mioduszewski; R.E. Mischke; G.C. Mishra; J.T. Mitchell; A.K. Mohanty; D.P. Morrison; J.M. Moss; F. Mühlbacher; D. Mukhopadhyay; M. Muniruzzaman; J. Murata; S. Nagamiya; J.L. Nagle; T. Nakamura; B.K. Nandi; M. Nara; J. Newby; P. Nilsson; A.S. Nyanin; J. Nystrand; E. O'Brien; C.A. Ogilvie; H. Ohnishi; I.D. Ojha; K. Okada; M. Ono; V. Onuchin; A. Oskarsson; I. Otterlund; K. Oyama; K. Ozawa; D. Pal; A.P.T. Palounek; V.S. Pantuev; V. Papavassiliou; J. Park; A. Parmar; S.F. Pate; T. Peitzmann; J.-C. Peng; V. Peresedov; C. Pinkenburg; R.P. Pisani; F. Plasil; M.L. Purschke; A.K. Purwar; J. Rak; I. Ravinovich; K.F. Read; M. Reuter; K. Reygers; V. Riabov; Y. Riabov; G. Roche; A. Romana; M. Rosati; P. Rosnet; S.S. Ryu; M.E. Sadler; N. Saito; T. Sakaguchi; M. Sakai; S. Sakai; V. Samsonov; L. Sanfratello; R. Santo; H.D. Sato; S. Sato; S. Sawada; Y. Schutz; V. Semenov; R. Seto; M.R. Shaw; T.K. Shea; T.-A. Shibata; K. Shigaki; T. Shiina; C.L. Silva; D. Silvermyr; K.S. Sim; C.P. Singh; V. Singh; M. Sivertz; A. Soldatov; R.A. Soltz; W.E. Sondheim; S.P. Sorensen; I.V. Sourikova; F. Staley; P.W. Stankus; E. Stenlund; M. Stepanov; A. Ster; S.P. Stoll; T. Sugitate; J.P. Sullivan; E.M. Takagui; A. Taketani; M. Tamai; K.H. Tanaka; Y. Tanaka; K. Tanida; M.J. Tannenbaum; P. Tarján; J.D. Tepe; T.L. Thomas; J. Tojo; H. Torii; R.S. Towell; I. Tserruya; H. Tsuruoka; S.K. Tuli; H. Tydesjö; N. Tyurin; H.W. van Hecke; J. Velkovska; M. Velkovsky; L. Villatte; A.A. Vinogradov; M.A. Volkov; E. Vznuzdaev; X.R. Wang; Y. Watanabe; S.N. White; F.K. Wohn; C.L. Woody; W. Xie; Y. Yang; A. Yanovich; S. Yokkaichi; G.R. Young; I.E. Yushmanov; W.A. Zajc; C. Zhang; S. Zhou; S.J. Zhou; L. Zolin
The use of PHENIX experiment at midrapidity in Au + Au collision at √sNN = 200 GeV for calculating Bose-Einstein correlation of identical charged ion pairs was discussed. It was found that the Bertsch-Partt radius parameters were determined as a function of the transverse momentum of the pair and as function of the collision. It was also observed that the value of Rout/Rside, as function of kT decrease from ∼1.1 to ∼ 0.8 over the range of kT. The results show that the measurements of the transverse momentum dependence of the HBT radii.
Double helicity asymmetry in inclusive midrapidity π0 production for polarized p + p collisions at √s = 200 GeV
(American Physical Society, 2004) S.S. Adler; S. Afanasiev; C. Aidala; N.N. Ajitanand; Y. Akiba; A. Al-Jamel; J. Alexander; K. Aoki; L. Aphecetche; R. Armendariz; S.H. Aronson; R. Averbeck; T.C. Awes; V. Babintsev; A. Baldisseri; K.N. Barish; P.D. Barnes; B. Bassalleck; S. Bathe; S. Batsouli; V. Baublis; F. Bauer; A. Bazilevsky; S. Belikov; M.T. Bjorndal; J.G. Boissevain; H. Borel; M.L. Brooks; D.S. Brown; N. Bruner; D. Bucher; H. Buesching; V. Bumazhnov; G. Bunce; J.M. Burward-Hoy; S. Butsyk; X. Camard; P. Chand; W.C. Chang; S. Chernichenko; C.Y. Chi; J. Chiba; M. Chiu; I.J. Choi; R.K. Choudhury; T. Chujo; V. Cianciolo; Y. Cobigo; B.A. Cole; M.P. Comets; P. Constantin; M. Csanád; T. Csörgo; J.P. Cussonneau; D. d'Enterria; K. Das; G. David; F. Deák; H. Delagrange; A. Denisov; A. Deshpande; E.J. Desmond; A. Devismes; O. Dietzsch; J.L. Drachenberg; O. Drapier; A. Drees; A. Durum; D. Dutta; V. Dzhordzhadze; Y.V. Efremenko; H. En'yo; B. Espagnon; S. Esumi; D.E. Fields; C. Finck; F. Fleuret; S.L. Fokin; B.D. Fox; Z. Fraenkel; J.E. Frantz; A. Franz; A.D. Frawley; Y. Fukao; S.-Y. Fung; S. Gadrat; M. Germain; A. Glenn; M. Gonin; J. Gosset; Y. Goto; R. Granier de Cassagnac; N. Grau; S.V. Greene; M. Grosse Perdekamp; H.-A. Gustafsson; T. Hachiya; J.S. Haggerty; H. Hamagaki; A.G. Hansen; E.P. Hartouni; M. Harvey; K. Hasuko; R. Hayano; X. He; M. Heffner; T.K. Hemmick; J.M. Heuser; P. Hidas; H. Hiejima; J.C. Hill; R. Hobbs; W. Holzmann; K. Homma; B. Hong; A. Hoover; T. Horaguchi; T. Ichihara; VV. Ikonnikov; K. Imai; M. Inaba; M. Inuzuka; D. Isenhower; L. Isenhower; M. Ishihara; M. Issah; A. Isupov; B.V. Jacak; J. Jia; O. Jinnouchi; B.M. Johnson; S.C. Johnson; K.S. Joo; D. Jouan; F. Kajihara; S. Kametani; N. Kamihara; M. Kaneta; J.H. Kang; K. Katou; T. Kawabata; A. Kazantsev; S. Kelly; B. Khachaturov; A. Khanzadeev; J. Kikuchi; D.J. Kim; E. Kim; G.-B. Kim; H.J. Kim; E. Kinney; A. Kiss; E. Kistenev; A. Kiyomichi; C. Klein-Boesing; H. Kobayashi; V. Kochetkov; R. Kohara; B. Komkov; M. Konno; D. Kotchetkov; A. Kozlov; P.J. Kroon; C.H. Kuberg; G.J. Kunde; K. Kurita; M.J. Kweon; Y. Kwon; G.S. Kyle; R. Lacey; J.G. Lajoie; Y. le Bornec; A. Lebedev; S. Leckey; D.M. Lee; M.J. Leitch; M.A.L. Leite; X. Li; X.H. Li; H. Lim; A. Litvinenko; M.X. Liu; C.F. Maguire; Y.I. Makdisi; A. Malakhov; V.I. Manko; Y. Mao; G. Martinez; H. Masui; F. Matathias; T. Matsumoto; M.C. McCain; P.L. McGaughey; Y. Miake; T.E. Miller; A. Milov; S. Mioduszewski; G.C. Mishra; J.T. Mitchell; A.K. Mohanty; D.P. Morrison; J.M. Moss; D. Mukhopadhyay; M. Muniruzzaman; S. Nagamiya; J.L. Nagle; T. Nakamura; J. Newby; A.S. Nyanin; J. Nystrand; E. O'Brien; C.A. Ogilvie; H. Ohnishi; I.D. Ojha; H. Okada; K. Okada; A. Oskarsson; I. Otterlund; K. Oyama; K. Ozawa; D. Pal; A.P.T. Palounek; V. Pantuev; V. Papavassiliou; J. Park; W.J. Park; S.F. Pate; H. Pei; V. Penev; J.-C. Peng; H. Pereira; V. Peresedov; A. Pierson; C. Pinkenburg; R.P. Pisani; M.L. Purschke; A.K. Purwar; J. Qualls; J. Rak; I. Ravinovich; K.F. Read; M. Reuter; K. Reygers; V. Riabov; Y. Riabov; G. Roche; A. Romana; M. Rosati; S. Rosendahl; P. Rosnet; V.L. Rykov; S.S. Ryu; N. Saito; T. Sakaguchi; S. Sakai; V. Samsonov; L. Sanfratello; R. Santo; H.D. Sato; S. Sato; S. Sawada; Y. Schutz; V. Semenov; R. Seto; T.K. Shea; I. Shein; T.-A. Shibata; K. Shigaki; M. Shimomura; A. Sickles; C.L. Silva; D. Silvermyr; K.S. Sim; A. Soldatov; R.A. Soltz; W.E. Sondheim; S. Sorensen; I.V. Sourikova; F. Staley; P.W. Stankus; E. Stenlund; M. Stepanov; A. Ster; S.P. Stoll; T. Sugitate; J.P. Sullivan; S. Takagi; E.M. Takagui; A. Taketani; K.H. Tanaka; Y. Tanaka; K. Tanida; M.J. Tannenbaum; A. Taranenko; P. Tarján; T.L. Thomas; M. Togawa; J. Tojo; H. Torii; R.S. Towell; V.-N. Tram; I. Tserruya; Y. Tsuchimoto; H. Tydesjö; N. Tyurin; T.J. Uam; H.W. van Hecke; J. Velkovska; M. Velkovsky; V. Veszprémi; A.A. Vinogradov; M.A. Volkov; E. Vznuzdaev; X.R. Wang; Y. Watanabe; S.N. White; N. Willis; F.K. Wohn; C.L. Woody; W. Xie; A. Yanovich; S. Yokkaichi; G.R. Young; I.E. Yushmanov; W.A. Zajc; O. Zaudtke; C. Zhang; S. Zhou; J. Zimányi; L. Zolin; X. Zong
A technique for determining the polarized gluon distribution using polarized protons, was presented. The transverse beam polarization was measured in Relativistic Heavy Ion Collider (RHIC) independently in each beam using proton-carbon elastic scattering in the Coulomb nuclear interference region. The results of the double spin helicity asymmetries for π0 production began to probe the proton spin structure in the perturbative quantum chromodynamic (QCD) regime with a sensitivity comparable to the polarized inclusive deep inelastic scattering data. The observed symmetry was small and was compared to a next-to-leading-order perturbative (NLO pQCD) calculation with a range of polarized gluon distributions.
Nimodipine attenuates biochemical, behavioral and histopathological alterations induced by acute transient and long-term bilateral common carotid occlusion in rats
(Academic Press, 2004) S.U. Yanpallewar; Debashish Hota; Sunita Rai; Mohan Kumar; S.B. Acharya
Restoration of blood flow to an ischemic brain region is associated with generation of reactive oxygen species with consequent reperfusion injury. Chronic cerebral hypoperfusion induced by permanent occlusion of bilateral common carotid arteries in rats is associated with behavioral and histopathological alterations. Nimodipine, a dihydropyridine calcium channel antagonist, has potent vasodilatory effect on cerebral vessels and increases cerebral blood flow. We analyzed whether nimodipine reduces injury caused by transient forebrain ischemia and long-term cerebral hypoperfusion. Bilateral common carotid occlusion for 30min followed by 45min reperfusion resulted in a two-fold increase in lipid peroxidation and superoxide dismutase activity. Nimodipine pretreatment (4mg/kg, i.p.) brought down these levels by 30 and 23%, respectively. Long-term cerebral hypoperfusion in rats caused a propensity towards anxiety and listlessness (open field paradigm) accompanied by deficits of learning and memory (Morris' water maze testing). Additionally, histopathological observation in hypoperfused brains revealed reactive changes in the form of perivascular inflammation, gliosis and astrocytosis. Nimodipine treatment significantly alleviated these changes in behavioral and histopathological parameters. Our data confirm the protective role of nimodipine in ischemia reperfusion injury. Moreover, it suggests the beneficial role of nimodipine in cerebrovascular insufficiency states and dementia. © 2003 Elsevier Ltd. All rights reserved.
Evaluation of specific and non-specific cellular immune responses in amoebiasis patients
(Iranian Journal of Public Health, 2004) N. Arianpour; T.M. Mohapatra
Specific and non-specific cellular immune responses were studied in 20 amoebiasis cases and 10 controls. All the study cases and controls were Indians living in Varanasi, India. Ten amoebic liver abscess cases were patients admitted to University hospital. Ten non-invasive intestinal amoebiasis cases constituted the second study group. Non-specific immune responses were studied using E-rosette technique. Specific cellular immune response was evaluated by measuring tritiated thymidine uptake by transformed lymphocytes using crude amoebic extract prepared from axenically grown Entamoeba histolytica NIH: 200 and two of its chromatographed fractions, i.e. fraction I (FI) & fraction II (FII) as well as a mitogen, i.e. Phyto Haemagglutinin-A (PHA). Results show those crude antigens followed by FI & FII are able to induce blastoid transformation of lymphocytes prepared from different cases. Moreover, it was shown that specific cellular immune response was greatly depressed in amoebic liver abscess cases (P<0.001). While the CPM (count per minute) of different groups on using PHA for stimulation did not vary significantly. © 2004, Iranian Journal of Public Health. All rights reserved.
Neoarchaean mafic volcanic rocks from the southern Bastar greenstone belt, Central India: Petrological and tectonic significance
(2004) Rajesh K. Srivastava; R.K. Singh; Surendra P. Verma
The Archaean southern Bastar Craton of India is an integral part of the Singhbhum protocontinent and includes a suite of geochemically diverse Neoarchaean mafic volcanics that occur as well-exposed extrusive masses capping hills of granite gneiss. All mafic volcanics have undergone greenschist facies metamorphic conditions, but most have preserved original igneous textures. Geochemical data indicate the mafic volcanic rocks can be divided into three distinct varieties; sub-alkaline basalt (SAB), basaltic andesite (BA), and boninite (BON). We interpret the geochemical data to indicate that these volcanics are genetically related through fractionation of BON to BA and SAB. Regional geology, metamorphism, distinctive sedimentary records, and small negative Nb anomalies in the mafic volcanic geochemistry suggest they were deposited in a stable continental rift environment. We interpret the geochemical characteristics of the mafic volcanics to most likely reflect variations in source characteristics, together with minor crustal contamination, rather than the process of volcanic-arc magmatism. Geochemical modelling suggest that the primary BON composition is consistent with about 15-20% batch-melting of a mantle source. BA and SAB represent fractional crystallisation of olivine from a high-Mg basaltic or boninitic magma. Compatible and incompatible trace element modelling suggests that all three rock types probably originated from a lherzolite mantle source. © 2004 Elsevier B.V. All rights reserved.