First Detection of Scale-Dependent Linear Halo Bias in N-Body Simulations with Massive Neutrinos.

Using N-body simulations with massive neutrino density perturbations, we detect the scale-dependent linear halo bias with high significance. This is the first time that this effect is detected in simulations containing neutrino density perturbations on all scales, confirming the same finding from separate universe simulations. The scale dependence is the result of the additional scale in the system, i.

Universal bound on N-point correlations from inflation.

Models of inflation in which non-Gaussianity is generated outside the horizon, such as curvaton models, generate distinctive higher-order correlation functions in the cosmic microwave background and other cosmological observables. Testing for violation of the Suyama-Yamaguchi inequality τ(NL) ≥ (6/5f (NL))(2), where f(NL) and f(NL) denote the amplitude of the three-point and four-point functions in certain limits, has been proposed as a way to distinguish qualitative classes of models. This inequality has been proved for a wide range of models, but only weaker versions have been proved in general.

Failure of the community-based Vita-Stat automated blood pressure device to accurately measure blood pressure.

Objective: To evaluate the Vita-Stat automated blood pressure computer (a patient-operated blood pressure measuring device available in the community) to determine its value as an instrument to monitor blood pressure in the ambulatory patient.

Design: Comparative study using the Vita-Stat vs a gold standard, the mercury sphygmomanometer.

Setting: Three local grocery stores.

A prospective study of heparin-induced osteoporosis in pregnancy using bone densitometry.

Objective: Our purpose was to evaluate the subclinical occurrence of heparin-induced osteoporosis in pregnancy, by means of bone densitometry.

Study Design: A prospective, consecutive cohort of 14 pregnant women requiring heparin therapy and 14 pregnant controls matched for age, race, and smoking status was identified by 20 weeks' gestation at a university medical center. Proximal femur bone density measurements were taken at baseline, immediately post partum, and 6 months post partum in the cases and controls.

The hypotensive action of captopril and enalapril is not prostacyclin dependent.

Angiotensin converting enzyme inhibitors have been proposed to have a prostaglandin-dependent component to their hypotensive action. The aim of this study was to assess whether the structurally dissimilar angiotensin converting enzyme inhibitors captopril and enalapril stimulate the synthesis of prostacyclin, whether their hypotensive action is blunted by indomethacin, and whether these biochemical or physiologic parameters differ for the two drugs, in white subjects with essential hypertension. Twelve patients were enrolled and 11 finished the study.