In this paper, we introduce the splicing operation on graph P system with the feature of conditional communication. We use the notions of Fruend graph splicing and generate the string graph languages. We study the generative power of the splicing graph P system with conditional communication with the other classes of string graph languages and give comparison results of the languages generated ...

A standard approach in the surgical treatment of severe aortic regurgitation and/or aortic root dilatation is Bentall procedure, it means replacement of the aortic valve and ascending aorta with a composite graft including mechanical or biological valve. The original technique described by Bentall and De Bono in 1968 (5). This is a „safe“ method with low mortality, but patients have to accept t...

feeding of gastroenterostomy cases might be fuller, and the actual quantities to be given might be stated, as also how often. One grain of cocaine seems a somewhat large dose to give to check the hiccough of gastrostomy cases. In Chapter 25 on intestinal operations on page 145 we read that, in all cases excepting appendicectomies no aperient should be given by mouth for ten days, and )7et on pa...

Both congenital and acquired aortic valve defects represent an important group of diseases in pediatric patients. Since the defects –in form of stenosis, insufficiency or mixedmay finally cause a loss of ventricular function and mean a big load for the heart muscle, an interventional or surgical therapy is required. Although there are various alternatives of treatment, none of these is really s...

The “Project Orion” small fission bomb propulsion concept proposed the one-stage launching of large payloads into low earth orbit, but it was abandoned because of the radioactive fallout into the earth atmosphere. The idea is here revived by the replacement of the small fission bombs with pure deuterium-tritium fusion bombs, and the pusher plate of the Project Orion with a large magnetic mirror...

Some time ago in another paper there was a symposium on the subject of which was the best operation for trichiasis. The contributors described many methods, but here in India where trichiasis is so common the operation performed by Anagnostakis has not received the attention which it deserves, so I wish to bring it before the attention of your readers. During the past three months I have perfor...

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a series of x(co, mn)/tio2 catalysts (x=2–12wt.%) containing 25%co and 75%mn were prepared by the co-impregnation method. all prepared catalysts have been tested in fischer-tropsch synthesis for production of c2-c4 olefins. it was found that the catalyst containing 8wt.%(co,mn)/tio2 is an optimal catalyst for production of c2-c4 olefins. the effect of operation conditions such as the h2/co mola...

the use of titanium and its alloys has increased in various industries recently, because of their superior properties of these alloys. titanium alloys are generally classified as difficult to machine materials because of their thermo-mechanical properties such as high strength-to-weight ratio and low thermal conductivity. laser assisted machining (lam) improves the machinability of high strengt...