Scientific Research Publishing

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=51196#.VFspvWfHRK0 Author(s) Li Min Lim , Kuldip Singh Affiliation(s) Department of Obstetrics and Gynaecology, National University Hospital, Singapore City, Singapore . ABSTRACT Background: Medical and surgical methods are available for abortions in both the first and second trimester. Aim: To review the evidence base and current recommendations for available methods of abortions in first and second trimesters. Methods: Extensive literature search and review of available guidelines   were   done. Results: In the first trimester, medical methods are recommended below 7 weeks gestation while vacuum aspiration is an appropriate...

Read full paper at: http://www.scirp.org/journal/PaperInformation.aspx?PaperID=50258#.VDNTr1fHRK0 Author(s)    Tad W. Patzek Affiliation(s) Department of Petroleum and Geosystems Engineering, The University of Texas, Austin, TX, USA . ABSTRACT In this paper, we revisit Fick’s original diffusion experiments and reconstruct the geometry of his inverted funnel. Part I demonstrates that Fick’s experimental approach was sound and measurements were accurate despite his own claims to the contrary. Using the standard modern approach, we predict Fick’s cylindrical tube measurements with a high degree of accuracy. We calculate that the salt reservoir at the bottom of the inverted funnel must have been about 5 cm in height and the unreported depth o...