Investigating texture six zero lepton mass matrices

Texture six zero Fritzsch like as well as non Fritzsch like hermitian lepton mass matrices (144 combinations in all) have been investigated for both Majorana and Dirac neutrinos for their compatibility with the current neutrino oscillation data, keeping in mind the hierarchy of neutrino masses. All the combinations considered here for Majorana neutrino masses are ruled out by the existing data in the case of inverted hierarchy and degenerate scenario. For Majorana neutrinos with normal hierarchy, only 16 combinations can accommodate the experimental data. Assuming neutrinos to be Dirac particles, normal hierarchy, inverted hierarchy as well as degenerate neutrinos are ruled out for all combinations of texture 6 zero hermitian mass matrices.Comment: 14 pages, 2 figure

Investigating non-Fritzsch like texture specific quark mass matrices

A detailed investigation of all possible textures of Fritzsch-like and non-Fritzsch like, 144 for texture 6 zero and 432 for texture 5 zero mass matrices, have been carried out to ascertain their compatibility with the existing quark mixing data. It seems that all the texture 6 zero possibilities are completely ruled out whereas in the case of texture 5 zero mass matrices the only viable possibility looks to be that of Fritzsch-like.Comment: 13 pages, 4 figures, Accepted for publication in IJMP

Study of IEEE 802.15.4 Wireless Network with Applications and Interference Mitigation Technique

In this paper I am going to explain about IEEE 802.15.4 (Zigbee) wireless network. IEEE 802.15.4 is a standard which specifies the physical layer and media access control for low-rate wireless personal area networks (LR-WPANs). It is maintained by the IEEE 802.15 working group, which defined it in 2003. It is the basis for the ZigBee, ISA100.11a, WirelessHART, MiWi, and Thread specifications, each of which further extends the standard by developing the upper layers which are not defined in IEEE 802.15.4.The fundamental system considers a 10-meter correspondences extend with an exchange rate of 250 kbit/s. Tradeoffs are conceivable to support all the more drastically implanted gadgets with even lower control necessities, through the meaning of not one, but rather a few physical layers. Bring down exchange rates of 20 and 40 kbit/s were at first characterized, with the 100 kbit/s rate being included the present correction. and it’s various application in the field of, Industrial,Agricultural,Vehicular , Residential, Medical and also discuss about interference mitigation technique like frequency agility mechanism. To improve the robustness of ZigBee networks, a feature called frequency agility is specified in the ZigBee standard. we extend the frequency agility function by enabling a single ZigBee network to work on multiple channels. As some local interference appears, the part of the network which is under the interference can move to a new idle channel while maintaining the communication links with the other part of the network which stays on the original channel and the moved part can move back to the original channel when the interference disappears

Implications of \eta' Coupling in the Chiral Constituent Quark Model

Using the latest data pertaining to \bar u-\bar d asymmetry and the spin polarization functions, detailed implications of the possible values of the coupling strength of the singlet Goldstone boson \eta' have been investigated in the \chiCQM with configuration mixing. Using \Delta u, \Delta_3, \bar u-\bar d and \bar u/\bar d, the possible ranges of the coupling parameters a, \alpha^2 a, \beta^2 a and \zeta^2 a, representing respectively the probabilities of fluctuations to pions, K, \eta and \eta^{'}, are found. To further constrain the coupling strength of \eta', detailed fits have been obtained for spin polarization functions, quark distribution functions and baryon octet magnetic moments. The fits clearly establish that a small non-zero value of the coupling of \eta' is preferred over the higher values of $\eta'$ as well as when \zeta=0, the latter implying the absence of \eta' from the dynamics of \chiCQM. Our best fit achieves an overall excellent fit to the data, in particular for \Delta u, \Delta d, \Delta_8 as well as the magnetic moments \mu_{n}, \mu_{\Sigma^-}, \mu_{\Sigma^+} and \mu_{\Xi^-}. The implications of \eta' on the gluon polarization have also been investigated.Comment: 7 pages, 2 tables. Presented at the 17th International Spin Physics Symposium, Kyoto, Japan, October 2-7, 200

Maximum-likelihood estimation of the 4-parameter generalized weilbull distribution

Weibull distrlbution is being increasingly employed by researches in tectinology, medicine and other áreas. Its generatlons to four parameters have been proposed, independently, by Stacy (1962) and Cohén (1969) ln this paper, we obtain the maximum-Likelihood estimators of the parameters of generalized Weibull distrlbution (g.w.d). The variance-covariance matrix is derived. We also consider the special coses when the threshold parameter and/or a shape parameter are known

Analysis of Explosive Mixtures by Thin Layer Chromatography

Thin layer chromatographic separation of some important military explosive mixtures containing nitro and nitramino compounds have been carried out with new developing system

A study of prevalence of tobacco use and related factors among medical students as per the Global Health Professions Student Survey protocol

Background: Physicians who smoke are less likely to ask patients about their smoking and initiate cessation interventions. Hence it is important to study the prevalence of tobacco use, attitude and training of health professional students. Objectives were to study prevalence and attitudes towards tobacco use and training related to tobacco cessation.Methods: Armed Forces Medical college-based cross-sectional survey by anonymous, self-administered questionnaire as per Global Health Professions Student Survey (GHPSS) was conducted. Data was compiled and analyzed for various variables as per the GHPSS questionnaire.Results: Forty-two percent of the students had ever smoked cigarettes and 24% were current smokers. Nearly one in five had tried their first cigarette before 20 years of age. Male gender was associated with smoking. There is a significant association between not smoking and support for smoking ban in public places. Almost all the respondents (98.1%) thought smoking should be banned in all enclosed public places. In light of 20.6% of all respondents who smoked in college buildings during past this year indicated a gap between their knowledge, attitude and behavior. There was a strong desire to quit smoking but only 42% reported receiving help/ advice to stop smoking. Only one in ten reported receiving formal training in smoking cessation techniques.Conclusions: The fight against tobacco can get a boost through interventions aimed at health care professional students. Active Interventions should be made to address smoking issues among medical students. Skill based medical school curriculum should incorporate and emphasize on acquiring effective smoking cessation skills