On the Treatment of Rayons with Synthetic Resins by Means of an Improved Method. (XVII) The Special Core-Resin Treatment Prior to Dyeing with Some Functional Finish Which may be Followed by Mechanical One (III). Dyeing and Functional Finish After Peeling off the First Outer and Skin layer Resin

In continuation of the foregoing paper of this series (XVl) the present one deals with the functional dyeing as well as the second resin finish intended for the outer layer upon the fiber，which had been core-resin treated and then peeled off the unavailing first resin on the skin and outer layers in order to give the place for the dye and the second resin. 1t was found that the fiber as treated above，properly choosing the dye and the second resin， showed to have a good balance with reference to the properties in compressional resilience， knot strength， and 1ight fastness of the dyeing. The present method in view is considered to be advantageous in that the fiber can be core-resin treated in white state in tow form (or in any other form also)， so that it can be processed on the part of the maker and be stocked， and then can be dyed at any stage before the end product on the part of the spinner or finisher as required， say， in staple， yarn or fabric stat

On the Treatment of Rayons with Synthetic Resins by Means of an Improved Method (XIX) The Stepwise Study on the “Presiton Process" in the Tow Form on a Semi Industrial Scale (11) From 'Presiton S' to' Presiton SW'

In continuation of the foregoing paper，the present one deals with the next step of treatments in the “Presiton Process" on a semi industrial scale for the present sample， ‘Presiton S'. which is to bring about a thin outer layer of the second resin on the surface of the sample，and also to set the reactive dye at the same time on the peeled and disc10sed surface of the cellulosic fiber. The meaning and the theory of preparing ‘Presiton SW' are herewith given in the introduction. And the optimum conditions of preparing a good ‘Presiton SW' with respect to the used resin and dye are determined. and given as in the followings; The reactive dye ; Procion Brill. Orange GS The dye concentration in the 1st bath; 1 % The dip time 15 minutes The resin COnc. in the 2nd bath ; 4 % Catalyser ;D.A.P.，5 %， o. w. of resin Cure temp. and time ; 130℃ x 5 min

ELECTRON MICROSCOPIC OBSERVATIONS OF THE EQUINE PARATHYROID GLANDS WITH PARTICULAR REFERENCE TO THOSE OF EQUINE OSTEODYSTROPHIA FIBROSA

An electron microscopic study was made of equine parathyroid glands from 53 horses (12 normal horses with immature bone tissue, 31 normal horses with mature bone tissue, and 10 cases of equine osteodystrophia fibrosa), and compared with light microscopic findings. 1) By electron microscopy, the authors could identify not only chief cells (light and dark), oxyphil cells (pale and dark) and water clear cells, which were previously noted by light microscopy, but also vacuolated chief cells, transitional water clear cells and transitional oxyphil cells. 2) The chief cell is the stem cell and plays an important role in equine parathyroid glands. From the electron micrographs, the evidence may suggest that the various types of cells have been derived from the chief cell in the equine parathyroid glands. 3) The light chief cells were impressive in cases of equine osteodystrophia fibrosa. Especially in severe cases, many of the light chief cells took the form of vacuolated light chief cells (only a few vacuolated dark chief cells were seen), and in some parts of the parathyroid gland, foci of water clear cells were frequently observed. 4) The vacuolated light chief cell was regarded as an abnormal cell produced by hyperfunction, because of its richness in glycogen, marked vacuolization of the endoplasmic reticulum, vacuolization and dilatation of the Golgi vesicles and existence of lipid bodies. The water clear cell was also regarded as an abnormal inactive cell produced by hyperfunction, because of the extremely rich glycogen in the cytoplasm. The light chief cell was regarded as a functioning cell, because of the secretory granules, and dilatation of the Golgi vesicles. 5) It is suggested that secretory products may accumulate and concentrate in the vacuolar or vesicular system of the Golgi apparatus. Pro-secretory granules are formed and these may develop into secretory granules in the endoplasmic reticulum system. It is further suggested that there is some relationship between secretory granules and lipid bodies. 6) The intercellular spaces were not remarkable except in equine osteodystrophia fibrosa when they were markedly dilated or cystic and an outflow of high electron opaque substances was frequently observed in the intercellular spaces

Anchor-wire technique for multiple plastic biliary stents to prevent stent dislocation

In endoscopic placement of multiple plastic biliary stents (PBSs), we sometimes experience proximal dislocation of the first PBS at the time of subsequent PBS insertion. We describe the case of a 79-year-old male with obstructive jaundice caused by cholangiocarcinoma who needed to receive multiple PBS placements for management of cholangitis. Although proximal dislocation of the first PBS was observed, we prevented the dislocation via our technique of using guidewire inserted from the distal end of the first PBS to the side hole as the anchor-wire. We could complete this technique only by inserting guidewire through the side hole of the first PBS during the process of releasing the first PBS and pulling out the guidewire and the inner sheath. It did not matter whether the anchor-wire went towards the third portion of the duodenum or the duodenal bulb. Here we introduce this “anchor-wire technique”, which is useful for the prevention of PBS proximal dislocation in placing multiple PBSs