11 research outputs found
Characteristic ratio of poly(tetrahydrofurfuryl acrylate) and poly(2-ethylbutyl acrylate)
The synthesis, characteristic ratio Cx and glass transition temperature (Tg) of poly(tetrahydrofurfuryl acrylate) (PTHFA) and of poly(2-ethylbutyl acrylate) (P2EBA) are reported. P2EBA has slightly lower flexibility (Cx = 9.2) than PTHFA (Cx = 8.6), mainly because of the higher bulkiness of its side group and the closer proximity to the main chain. The Cx results compared with the corresponding polymethacrylates show an increase in flexibility due to the absence of the α-methyl group. Comparison with poly(methyl acrylate) clearly shows the influence of the bulkiness of the side group on the chain flexibility. The lower Tg of P2EBA than that of PTHFA may be explained by the higher flexibility of the 2-ethylbutyl side group. © 1997 John Wiley & Sons, Inc
Maternal protein restriction leads to hyperinsulinemia and reduced insulin-signaling protein expression in 21-mo-old female rat offspring
Anxiety and depression among Greek men with primary erectile dysfunction and premature ejaculation
Background: Erectile dysfunction (ED) and premature ejaculation (PE) are
the two most prevalent sexual disorders among males associated with
significant distress and impairment in quality of life. The aim of this
study was to investigate the prevalence of anxiety and depression
symptoms among patients with primary ED and PE.
Methods: A sample of 57 men (ED = 31; PE = 26) were compared to 25 male
outpatients with anxiety disorder (AD) and 25 healthy controls.
Principal assessment measures included the State-Trait Anxiety Inventory
(STAI) and the Beck Depression Inventory (BDI).
Results: Greater levels of STAI state anxiety were reported among the
ED, PE, and AD groups as compared to healthy controls. In contrast ED
and AD groups scored higher than controls on the STAI trait anxiety and
BDI, but PE scores were not different from healthy controls in both
measures.
Conclusions: The study findings suggest that both primary ED and PE are
conditions associated with significant state anxiety; however, PE
appears to be less associated with trait anxiety and depression compared
to ED, a finding that corroborates the recent acknowledgement of PE as a
more biologically based condition. Limitations and potential clinical
implications are also discussed