STUDY OBJECTIVE To investigate the association between the spatial concentration of deprived households and teenage non-marital childbearing. Associations with area deprivation are tested before and after allowing for levels of personal deprivation. DESIGN AND SETTING The individual data are derived from the 2% sample of anonymised records (SAR) from the census of 1991 in Great Britain, and a...

There has been a growing interest in how the built environment affects health and well-being. Housing characteristics are associated with human health while environmental chemicals could have mediated the effects. However, it is unclear if and how residence duration might have a role in health and well-being. Therefore, the aim of the present study was to investigate the associations among resi...

in this paper, the present state of knowledge about axial mixing in gasliquid reactors is reviewed. a brief outline of the methods for measuring residence time distribution(rtd)of various phases in a multiphase reactor is presented. this is followed by a short description of differential and stage-wise models for characterizing back mixing from rtd measurments. backmixing characteristics of som...

All academic disciplines include research, and students in research programmes should have a solid understanding about basic principles. Owing to generate perfect graduate, postgraduate teachers must guarantee that gain the ability do using recognised procedures connected with specific educational sub-disciplines. Many factors may affect attitude of college students. A deep probe on location le...

In order to reduce variance and correct for coverage of ACS estimates, there is a desire for controlling estimates of demographic characteristics at the tract level. Currently, intercensal population controls are based on “usual residence” and are not available at the tract level, while the ACS produces estimates at the tract level that are based on “current residence”. This project proposes a ...

We study the characteristics of stochastic resonance (SR) in the Duffing oscillator with three types of asymmetries in its double-well potential. The asymmetries controlled by a parameter α are introduced in the potential by varying (i) the depth of the left-well alone, (ii) the location of the minimum of the left-well alone and (iii) both depth and location of the minimum of the left-well alon...

China's fertility rate is below replacement level. The government is attempting to increase this rate by relaxing the one-child policy. China faces a possible tradeoff because further urbanization is needed to raise incomes but may reduce future fertility. We decompose China's rural-urban fertility gaps using both de facto and de jure criteria for defining the urban population. The fertility-de...