The Effects on Stature of Poverty, Family Size and Birth Order: British Children in the 1930s This paper examines effects of socio-economic conditions on the standardised heights and body mass index of children in Interwar Britain. It uses the Boyd Orr cohort, a survey of predominantly poor families taken in 1937-9, which provides a unique opportunity to explore the determinants of child health...

background central venous catheterization is done frequently in cardiac surgery and intensive care settings. faulty positioning of the catheter can cause many complications. objectives the aim of our study was to study the average depth of insertion and formulate a general guideline through the right internal jugular vein (ijv). patients and methods the right ijv was cannulated over a period of...

Genetically determined sex differences in stature, musculature and cardiovascular capacity result in males having a substantial advantage over females in those sports which, in general, require strength, speed and power. It is well documented that differences in performance between highly trained men and women are considerably less than those that exist between average men and women" 2. This ju...

The Dutch are the tallest people on earth. Over the last 200 years, they have grown 20 cm in height: a rapid rate of increase that points to environmental causes. This secular trend in height is echoed across all Western populations, but came to an end, or at least levelled off, much earlier than in The Netherlands. One possibility, then, is that natural selection acted congruently with these e...

analysis of non-laminar flows in coarse alluvial beds has a wide range of applications in various civil engineering, oil and gas, and geology problems. darcy equation is not valid to analyze transient and turbulent flows, so non-linear equations should be applied. non-linear equations are classified into power and binomial equations. binomial equation is more accurate in a wide range of velocit...

As x → ±∞, z = ±y tan( 1 2 α)+(n+ 1 2 )π sec( 1 2 α), respectively for integers n. Thus Scherk’s first surface connects two infinite sets of parallel planes at x = ±∞, equally spaced by π and rotated by an angle α with respect to each other. It has been used as a model for grain boundaries in diblock copolymers and smectic liquid crystals [2,3] where the multi-valued height function represents ...