2,210 research outputs found
Strange hadron production in pp, pPb and PbPb collisions at LHC energies
We present a systematic analysis of transverse momentum spectra of
the strange hadrons in different multiplicity events produced in pp collision
at = 7 TeV, pPb collision at = 5.02 TeV and PbPb
collision at = 2.76 TeV. Both the single and differential
freeze out scenarios of strange hadrons , and are
considered while fitting using a Tsallis distribution which is modified to
include transverse flow. The distributions of these hadrons in
different systems are characterized in terms of the parameters namely, Tsallis
temperature , power and average transverse flow velocity .
It is found that for all the systems, transverse flow increases as we move
from lower to higher multiplicity events. In the case of the differential
freeze-out scenario, the degree of thermalization remains similar for events of
different multiplicity classes in all the three systems. The Tsallis
temperature increases with the mass of the hadrons and also increases with the
event multiplicity in pp and pPb system but shows little variation with the
multiplicity in PbPb system. In the case of the single freeze-out scenario, the
difference between small systems (pp, pPb) and PbPb system becomes more
evident. The high multiplicity PbPb events show higher degree of thermalization
as compared to the events of pp and pPb systems. The trend of variation of the
temperature in PbPb system with event multiplicity is opposite to what is found
in the pp and pPb systems
Charged and Neutral Current Pion Production in Neutrino-Nucleus Scattering
In this article, we present the charged and neutral current coherent pion
production in the neutrino-nucleus interaction in the resonance region using
the formalism based on the partially conserved axial current (PCAC) theorem
which relates the neutrino-nucleus cross section to the pion-nucleus elastic
cross section. The pion nucleus elastic cross section is calculated using the
Glauber model approach. We calculate the integrated cross sections for
neutrino-carbon, neutrino-iron and neutrino-oxygen scattering. The results of
integrated cross-section calculations are compared with the measured dataComment: XXII DAE High Energy Physics Symposium, Springer Proceedings in
Physics 20
NANOSTRUCTURED LIPID CARRIERS (NLCS): A PROMINENT TOPICAL DELIVERY SYSTEM FOR COENZYME Q10 AND MYRICA ESCULENTA LEAVES EXTRACT FOR ANTI-AGING POTENTIAL
Objective: In this study, Myrica esculenta (ME) leaves extract along with Coenzyme Q10 was entrapped in nanostructured lipid carriers (NLCs). The formulation variables were successfully optimized using 23 factorial design.Methods: Preparation of NLC was carried out by solvent injection technique. The formulation of NLC was consisting of the methanolic extract of Myrica esculenta leaves and Coenzyme Q10 as key ingredients. Oleic Acid (OA) was taken as liquid lipid, Precirol ATO 5 (PATO) as solid lipid, and Poloxamer 407 (P407). The formulation variables were statically optimized using 23 factorial design, followed by the characterization of the formulation.Results: The results demonstrated that the best optimized NLC formulation F5 of Coenzyme Q10 and plant extract exhibited the smallest size 169.46 nm and highest entrapment efficiency 90.06±0.171 %. Furthermore, it showed good physical stability at 28 d after preparation.Conclusion: The developed NLCs of Q10-ME extract from this study could be explored as the effective anti-ageing formulation
Characterization of Zinc oxide & Aluminum Ferrite and Simulation studies of M-H plots of Cobalt/Cobaltoxide
Zinc oxide and Aluminum Ferrite were prepared Chemical route. The samples
were characterized by XRD and VSM. Simulation of M-H plots of Co/CoO thin films
were performed. Effect of parameters was observed on saturation magnetization.Comment: Working paper (11 pages, 8 figures
Does Education Leads to Contraceptive Use? A Study of Sexually Experienced Unmarried Men in India
The consequences of pre-marital sex have been the subject of common concern for the public health professionals and policy makers. In India, despite strict societal sanctions, the prevalence of pre-marital sex has been repeatedly documented across literatures. It is believed that existing education system could afford the responsibility to develop protective sexual behavior among unmarried youths. Using National Family Health Survey (2005-06) data, this study examines the effect of education on contraceptive and condom use among sexually experienced unmarried men. Results indicate that education has a positive effect on contraceptive as well as condom use. However the interaction effect of education and awareness on contraceptive and condom use provides the key explanations for safe sexual practices. The findings could help policy makers to focus on both education and awareness which might lead to improvement in safe sexual practices in India where introducing sex education is still a controversial issue. Keywords: Education, awareness, unmarried men, contraceptive and condom use, Indi
Epidural ropivacaine combined with fentanyl or in combination with clonidine in infraumblical surgeries: a comparative study
Background: The addition of an adjuvant, like clonidine and fentanyl, in epidural blockade has enhanced the effectiveness of local anaesthetics as they not only help in intensifying and prolonging the blockade effect but also help in the reduction of the dose of local anaesthetics.Methods: Our study had 45 patients, all patients belonged to ASA grade-I or II, between 20 and 55 years of age requiring neuraxial blockade for lower abdominal surgeries. All the patients were randomly allocated into two groups. Group-I: Epidural ropivacaine 0.75% (14.5ml) + Fentanyl 50 µgm (1 ml) + 0.5 ml distilled water. Group-II: Epidural ropivacaine 0.75% (14.5ml) + Fentanyl 50 µgm (1 ml) + clonidine 50 µgm. Patients were monitored for sensory and motor blockade, hemodynamic parameters, rescue analgesia and adverse effects in perioperative period.Results: Highest level of sensory and motor blockade was found to be insignificant (p>0.05) in both the groups. Mean time for regression of sensory blockade to T10 was significantly longer (p<0.05) in group II as compared to group I. The duration of motor blockade was significantly (p<0.001) higher in patients of Group-II as compared to Group-I. The addition of clonidine to epidural Ropivacaine and fentanyl (Group-II) produces longer duration of analgesia as compared to Group-I. Haemodynamically the patients in both the groups behaved similarly. The patients, in whom epidural fentanyl was used, had slightly higher incidence of nausea, vomiting, dry mouth and pruritus.Conclusions: So this study re-established the fact, that the fentanyl and clonidine when added as adjuvant to epidural ropivacaine, significantly prolongs the analgesic duration without causing significant hemodynamic and respiratory changes.
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