High-resolution ecosystem changes pacing the millennial climate variability at the Middle to Upper Palaeolithic transition in NE-Italy.

Observation of high-resolution terrestrial palaeoecological series can decipher relationships between past climatic transitions, their effects on ecosystems and wildfire cyclicity. Here we present a new radiocarbon dated record from Lake Fimon (NE-Italy) covering the 60-27 ka interval. Palynological, charcoal fragments and sediment lithology analysis were carried out at centennial to sub-centennial resolutions.

The fast-acting "pulse" of Heinrich Stadial 3 in a mid-latitude boreal ecosystem.

A 3800 year-long radiocarbon-dated and highly-resolved palaeoecological record from Lake Fimon (N-Italy) served to investigate the effects of potential teleconnections between North Atlantic and mid-to-low latitudes at the transition from Marine Isotope Stage (MIS) 3 to 2. Boreal ecosystems documented in the Fimon record reacted in a sensitive way to millennial and sub-millennial scale Northern Hemisphere atmospheric circulation patterns. The high median time-resolution of 58 years allows the identification of five abrupt event-boundaries (i.

Atazanavir plus low-dose ritonavir in pregnancy: pharmacokinetics and placental transfer.

Background: Adequate antiretroviral exposure during pregnancy is critical to prevent the vertical transmission of HIV and for maternal health. Pregnancy can alter drug kinetics. We assessed the pharmacokinetics of atazanavir/ritonavir (300/100 mg a day) during pregnancy.

[Clinical characteristics of HCV infection in pregnancy: the role of sexual transmission].

Background: There is no uniformity of opinions about the possibility of sexual transmission of hepatitis-C-virus infection. Moreover the infection during pregnancy is often underestimated.

Methods: One hundred and seventy-eight anti-HCV-positive pregnant women were investigated to evaluate the incidence of HCV infection and the possibility of sexual transmission of the disease to the partners.

Urinary albumin excretion in normal pregnancy and pregnancy-induced hypertension.

We measured the urinary excretion of albumin in 67 healthy primigravidae, at monthly intervals, from 16 to 36 weeks of gestation and 12 weeks postpartum. Of the 67 primigravidae, 55 completed a normal pregnancy and 12 developed pregnancy-induced hypertension. In the latter group, an additional measurement of urinary albumin excretion was performed at 24 weeks postpartum.