Optical properties and electronic transitions of DNA oligonucleotides as a function of composition and stacking sequence.

The role of base pair composition and stacking sequence in the optical properties and electronic transitions of DNA is of fundamental interest. We present and compare the optical properties of DNA oligonucleotides (AT)10, (AT)5(GC)5, and (AT-GC)5 using both ab initio methods and UV-vis molar absorbance measurements. Our data indicate a strong dependence of both the position and intensity of UV absorbance features on oligonucleotide composition and stacking sequence.

Do allogeneic bone marrow transplant candidates match coping to controllability of pre-treatment stressors?

According to the Person x Situation theoretical framework, people adjust their coping to address the unique challenges of encountered stressors. Whether their strategies fit or appropriately address these stressor challenges influences adjustment. We examined the fit between pre-treatment stressors reported by hematological cancer patients awaiting allogeneic bone marrow transplantation (alloBMT) and their coping responses.