The present study aimed therefore to study the development of retina of postnatal young rats aged 7 and 14 days maternally fed on fried potato chips using two approaches: firstly, light and transmission electron microscopy and secondly, SD-SPAGE for the developing retina of the same stages.
Taking the increased boiler cost and additional tank installation an LPG central heating system can typically cost anything from Â£2,500 - Â£6,000 depending on the size of property.Ongoing running costs are higher than natural mains gas but lower than oil.aking the increased boiler cost and additional tank installation an LPG central heating system can typically cost anything from Â£2,500 - Â£6,000 depending on the size of property.
A NG heater is much cheaper to run that a LP heater. For comparison, a gallon of propane is about equal to a therm of NG in terms of BTU output (~100,000). The average cost of a therm of NG is $1.00 (mine is $0.77) and the average cost of LP is $3.00 (mine is $2.75).