AnisotropicHc2ofK0.8Fe1.76Se2determined up to 60 T

fracture toughness of nanohybrid and hybrid composites stored wet and dry up to 60 days

statement  of  problem:  patients’ demand  for  tooth-colored  restoratives  in the posterior region is increasing. clinicians use universal nanohybrid resin composites for both anterior and posterior regions. there are few published reports comparing fracture toughness of nonohybrids and that of hybrid composite stored wet and dry. objectives: to investigate the fracture toughness of three nan...

A 60-year follow-up of alcoholic men.

AIMS To study the course of male alcohol abuse from age 20 to age 70-80 years. DESIGN A prospective multi-disciplinary follow-up of two community cohorts of adolescent males from 1940 until the present. SETTING AND PARTICIPANTS Two hundred and sixty-eight former Harvard undergraduates (college sample) and 456 non-delinquent, socially disadvantaged Boston adolescents (core city sample). ME...

Up to seven years of experience with the Ross procedure in patients >60 years of age.

OBJECTIVES The objective of this study was to compare the outcome of patients >60 years of age with younger patients after the Ross procedure. BACKGROUND Currently, the Ross procedure is performed predominantly in young patients. Main arguments against the Ross procedure in the elderly are the complexity of the operation and related risks. Experience with the Ross procedure in patients >60 ye...

Fracture Toughness of Nanohybrid and Hybrid Composites Stored Wet and Dry up to 60 Days

STATEMENT OF PROBLEM Patients' demand for tooth-colored restoratives in the posterior region is increasing. Clinicians use universal nanohybrid resin composites for both anterior and posterior regions. There are few published reports comparing fracture toughness of nonohybrids and that of hybrid composite stored wet and dry. OBJECTIVES To investigate the fracture toughness of three nanohybrid...

Design and Technology of Ultra Thin Chip Packages for High-Frequency Applications up to 60 GHz