A Note on the Use of the Axis-Traction Forceps in the High and Low Operation
نویسنده
چکیده
was obliged to resort to version, seeing that in these cases I could get no skilled assistance, being, when in Forfarshire, often from fifteen to twenty miles from home. This latter operation, of course, had to be as a rule performed under not very favourable circumstances, and the results, in my hands at least, were not very encouraging as regards the fcetus. Of twelve cases of version in my first thousand cases, I had six still-births, exactly 50 per cent.; while of my long forceps cases, which ended as such, there were 6 per cent, of foetal deaths. I am of opinion now that, judging *
منابع مشابه
Rating Reduction and Optimized DC-Link Voltage of the HPQC in Co-Phase Traction Power System
Electric traction trains are huge non-linear single-phase loads influencing adversely on power quality parameters on the grid side. Hybrid power quality conditioner (HPQC) has been utilized to compensate current unbalance, harmonics, and low power factor in the co-phase traction system simultaneously. By incrementing the traction load, the rating of the HPQC increases and may constraints its ap...
متن کاملPredictive Controlled GSP Performance Improvement with an Integrated ℋ2/ℋ∞ (TECHNICAL NOTE)
To improve the performance of a robust control, in presence of internal or external disturbance and uncertainties, to make a smooth tracking and elimination of high frequency disturbances especially in accurate systems with minimum power consumption an integration of robust optimal controller considered. Here, derivation and implementation of the proposed controller based on the combination of ...
متن کاملInfluence of Stream channel morphology and in-stream habitats on fish community in Golestan province Streams
Four streams with different sizes were selected for studying the effects of environmental factors on fish assemblages using indirect (Detrended Correspondence Analysis, DCA) and direct (Redundancy Analysis, RDA) gradient analysis in Golestan province. DCA of presence-absence and relative abundance data showed well gradient and linear model of species variability. In the within-site RDA, environ...
متن کاملForceps with Adjustable Axis-Traction, and Forceps for Occipito-Posterior Positions of the Vertex
1. Inefficiency of the powers. 2. Abnormality of the passages?a, Hard ; b, soft. 3. Malpresentation or malposition of the passenger. 4. Emergencies arising in mother or child demanding speedy delivery. Indications coming under any of these divisions, with the exceptions of the abnormalities of the hard passages, may arise witli a normal condition of the bony pelvis. From the point of view of th...
متن کاملA Comprehensive Model for Adhesion Control System of Wheel and Rail
This paper presents the movement dynamic of the train and the relationship between the speed of wheel and train, as well as a discussion about the concept of wheel slip. There are two different operation regions designated as creep and wheelspin areas for wheel slip. Creep and wheelspin areas have stable and unstable characteristics, respectively. Wheels and rails are constructed from iron, and...
متن کامل