Septal Q wave vectors. a tiny negative deflection in one or several of the left lateral leads. This initial negative deflection, or Q wave, may therefore be seen in leads I, AVL, V5, and V6. Sometimes, small Q waves may also be seen in the inferior leads and in V3 and V4.
The year 1921 is a year of the great divide in the demographic history of India when mortality started to decline leading to acceleration in the rate of population growth.During the next three decades (1921-51) the rate of population growth continued at a level of over one per cent per annum.. High rate of birth and Low rate of deaths-High population growth (developing). 3. Low rate of birth and Low rate of deaths-Low population growth (developed). In a country like India, where the children are considered as assets, rate of birth tend to be high.
Abstract. Age structure of any region is the consequence of birth rate, death rate, migration and the expectation of life at birth. This study examines the spatial and temporal changes in the age-sex structure of India s population by studying in detail the shift in each age-cohort from 1881 to 2001.he trend in age-structure is further revealed through the analysis of detailed age-cohorts from 1881 to 2001. In the first two age-cohorts i.e., of 0-4 and 5-9 years, there is a decline in their proportion in the total population of India after 1961. This trend is maintained even in the 2001 census.