Moreover, using three independent sets of data (collected LY3039478 from ice-cores and chemistry) we perform a specific regression analysis which concludes that forecasts about the correlation between CO2-concentration and temperature rely heavily on the choice of data used, and one cannot be positive that indeed such a correlation exists (for chemistry data) or even, if existing (for ice-cores data), whether it leads to a “”severe”" or a “”gentle”" global warming. A very recent development on the greenhouse phenomenon is a validated adiabatic model, based on laws of physics, forecasting a maximum temperature-increase of 0.01-0.03 degrees C for a value doubling the
present concentration of atmospheric CO2. Through a further review of related studies and facts from disciplines like biology and geology, where CO2-change is viewed from a different perspective, it is suggested that
CO2-change is not necessarily always a negative factor for the environment. In fact it is shown that CO2-increase has stimulated the growth of plants, while the CO2-change history has altered the physiology of plants. Moreover, data from palaeoclimatology show that the CO2-content in the atmosphere is at a minimum in this geological aeon. Finally it is stressed that the understanding of the functioning of Earth’s complex climate system (especially for water, solar radiation and so forth) is still poor and, hence, scientific knowledge is not at a level to give definite and precise answers for the causes of global warming. (C) 2008 Elsevier Ltd. All rights reserved.”
“Objective. There find more is little information about the combination of genetic variability in pregnant women and their children in relation to the risk of preterm delivery (PTD). In a sub-cohort of 487 non-Hispanic white and 288 African-American mother/child
pairs, the Pregnancy Outcomes and Community Health Study assessed 10 functional polymorphisms in 9 genes involved in innate immune function.
Methods. Race-stratified weighted logistic regression models were used to calculate odds ratios for genotype and PTD/PTD learn more subtypes. Polymorphisms significantly associated with PTD/PTD subtypes were tested for mother/child genotype interactions.
Results. Three maternal polymorphisms (IL-1 receptor antagonist intron two repeat (IL-1RN), matrix metalloproteinase-C1562T, and TNF receptor two M196R (TNFR2)) and three child polymorphisms (IL1-RN, tumor necrosis factor-alpha -G308A, and TNFR2) were associated with PTD, but associations varied by PTD subtype and race. Two interactions were detected for maternal and child genotype. Among non-Hispanic white women, the odds of PTD was higher when both mother and child carried the IL-1RN allele two (additive interaction p < 0.05). Among African-American women, the odds of PTD were higher when both mother and child carried the TNFR2 R allele (multiplicative interaction p < 0.05).