Associated HI absorption in the z=3.4 radio galaxy B2 0902+343 observed with the GMRT

We have made observations of the associated HI absorption of a high redshift radio galaxy 0902+34 at z=3.395 with the Giant Meterwave Radio Telescope in the $323\pm1$ MHz band. We find a narrow absorption line with a flux density of 11.5 mJy at a redshift of 3.397 consistent with that observed by Uson et al. (1991), Briggs et al. (1993) and de Bruyn (1996).A weak broad absorption feature reported by de Bruyn (1996) has not been detected in our observations. We also place an upper limit of 4 mJy (2 $\sigma$) on emission line strength at the position where Uson et al. (1991) claimed to have found a narrow emission line.Comment: To appear in Journal of Astronomy and Astrophysic

Food and feeding habit of a penaeid prawn Metapeneopsis stridulans (Alcock 1905)

Metapeneopsis stridulans feeds on a variety of food items, viz. diatoms, foraminiferans polychaetes, molluscs, crustaceans and detritus consisting of unidentifiable decaying matter along with sand and mud. The species does not show a preference for any particular food item. There is no significant difference in the food habits among the various size groups observed in the prawn. Monthwise feeding intensity for males and females shows males with empty stomach to be prevalent in most months

Librations of a Quasi-Lagranghn Gyro

The proximate motion of a Lock-Fowler projectile with q > 0 is studied via geometrical method due to Copeland. Steady and unsteady motions are classified taking into account conditions at launch

Inhomogeneous vortex-state-driven enhancement of superconductivity in nanoengineered ferromagnet-superconductor heterostructures

Thin film heterostructures provide a powerful means to study the antagonism between superconductivity (SC) and ferromagnetism (FM). One interesting issue in FM-SC hybrids which defies the notion of antagonistic orders is the observation of magnetic field induced superconductivity (FIS). Here we show that in systems where the FM domains/islands produce spatial inhomogeneities of the SC order parameter, the FIS can derive significant contribution from different mobilities of the magnetic flux identified by two distinct critical states in the inhomogeneous superconductor. Our experiments on nanoengineered bilayers of ferromagnetic CoPt and superconducting NbN where CoPt/NbN islands are separated by a granular NbN, lend support to this alternative explanation of FIS in certain class of FM-SC hybrids.Comment: 5 figure

Analysis of Blast Loading Effect on High Rise Buildings

This paper presents the dynamic response of a High Rise Structure subjected to blast load. The fundamentals of blast hazards and the interaction of blast waves with structures are examined in this study it is about the lateral stability of a high rise building modeled using SAP2000. The model building was subjected to two different charge weights of 800lbs and 1600lbs TNT at a two different standoff distances of 5m and 10m.The blast loads are calculated using the methods outlined in section 5 of TM5-1300 and a nonlinear modal analysis is used for the analysis of the dynamic load of the blast. The primary performance parameters that will be used to evaluate the behavior of the building from a global perspective are the total drift and the inter-storey drift. They are good indicators of nonstructural damage, collapse and ability of the structure to resist P-delta effect. Behavior of R.C frame and concrete infill frame will be computed in Dynamic condition Keywords: Blast loading; Inter-storey Drift; Standoff Distance; TNT; Positive Phas

A Study on Socio-Economic Factors Affecting Utilization of Maternal Health Care Services in Urban Community

Background: Even though the MMR dropped from 212 deaths per 100,000 live births in 2007-09 to 178 in 2010-12, India is behind the target of 103 deaths per live births to be achieved by 2015 under the United Nations-mandated Millennium Development Goals (MDGs).As per WHO, Three crucial factors understanding maternal deaths. Firstly lack of access and utilization of essential obstetric care. Secondly low social status of women in developing countries. Thirdly too much physical work together with poor diet also contributes to poor maternal outcomes. Out of these three factors, access and utilization of health care is the most crucial factor which is capable of reducing maternal morbidity and mortality. The present study was carried out to evaluate socio demographic correlates and barriers of maternal health care utilization in the urban community.    Objective:   To know the factors influencing the utilization of maternal health care services. METERIAL &METHODS; Study design: Cross sectional study. Area of study:   UHTC Kalal galli. Bijapur   (Urban field practice area)Participants: All married woman in the age group of 15-45 years who were either pregnant at the time of interview or delivered within last one year were included in the study.  Study period: January to March 2015Sample size: 134 mother Methods: Interview technique using pre tested   Proforma.   Statistical analysis: Percentage and chi-square test. Result: Utilization of maternal health services was found more among literate (70%) mothers compared to illiterate mothers. Utilization of maternal health services increased with increase in economic status. Major reasons for non-utilization of maternal service were not having a delivery complication in the past. (57%) Conclusion: The result reveals that educational level of women, exposure to mass media, birth order and wealth index are significant predictors in explaining the use of maternal health care services. There is a need of motivation and enhancing IEC activities for bringing desirable changes in the health care practice of the mother

A fluctuation theory for Markov chains

A fluctuation theory for Markov chains on an ordered countable state space is developed, using ladder processes. These are shown to be Markov renewal processes. Results are given for the joint distribution of the extremum (maximum or minimum) and the first time the extremum is achieved. Also a new classification of the states of a Markov chain is suggested. Two examples are given