Thin segment

Abstract: An absorbent structure that includes a first region, a second region and a central region extending between the first and second regions, the first region and part of the central region are formed with a thick segment. The second region is formed with a thin segment having a thickness dimension smaller than that of the thick segment. Between the thick segment and the thin segment, a thickness-sloped segment having a thickness dimension gradually reduced from the side of the first region toward the second region and the thin segment and at least a region of the thickness-sloped segment being adjacent to the thin segment are debossed.

Abstract: In the avian kidney three nephron types may be identified: mammalian-type nephrons with long (MTN-I) and short (MTN-II) loops of Henle, and reptilian-type nephrons (RTN). By the method of microdissection the maturation of the nephrons of domestic fowl kidney has been studied. From the 14th day of incubation it is possible to isolate the MTN-I which appear first; all three nephron types may be isolated after 18 days of incubation. The thin limb of Henle's loop in MTN-I appears after hatching, and the length of this segment in 1-day-old chicks is 0.1-0.13 mm. In 60-day-old chicks its length has approximately doubled. The transition of the thin segment to the thick segment is situated in the descending part of Henle's loop. In the course of development, the relative length of all nephron segments in MTN-I increases uniformly, while in MTN-II and in RTN the relative length of the proximal and distal convoluted tubules increases. At all stages of development, MTN-I are the longest among the three groups of nephrons and have the largest glomeruli. The comparison between developing avian and mammalian kidneys shows great similarities in the process of maturation in analogous nephron types in these two classes of vertebrates.

Abstract: advance in this field seems to need repeated experiences even on the same subject,. namely, cells and tissues in order to establish constant relationship between electronmicroscopic structures and procedures in obtaining the micrograph. The pioneer studies dealing with the electronmicroscopy of the kidney were those of PEASE and BAKER('^), DALTON(~)~(~) and other. However, the techniques used in these studies were so poor that these papers now have little more than historical interest. Since 1953 many electronmicroscopic studies of the kidney with satisfactorily good techniques have been reported (RINEHART, HALL, PEASE, PEASE and BAKER, REID, SJOSTRAND and RHODIN, RHODIN etc.), but most of them have concerned themselves almost exclusively with glomerulus. or proximal convoluted tubule. As to the thin segment of loop of Henle, the only available papers are those of PEASE(~~) , ( '~)A~~) . (~*) . The authors have started serial studies on electronmicroscopy of the cells and tissues, normal and pathological, attempting to contribute to the establishment of electronmicroscopic cyto-histopathology since 1954. In the present paper, the normal fine structure of the this thin segment of loop of Henle in rat's kidney revealed by electronmicroscopy will be reported. (PORTER,(20)(21)(22) PALADE,'7),(8)~(9)i('o) s JOSTRAND,(25) etc.). The present Stage O f

Abstract: The invention discloses a thin plate segment turning-over tool. The thin plate segment turning-over tool is composed of a main beam, a supporting beam and supports. The main beam and the supporting beam are each of a box-shaped structure, and the main beam and the supporting beam are connected through a through hole and kept in a state of being perpendicular to each other. The supports are placedon a field for supporting the main beam and the supporting beam. A thin plate segment is disposed on a main beam top plate of the main beam, and the thin plate is fixedly connected with the main beamand a plurality of sets of lifting lugs on the edge of the supporting beam through the end parts of the thin plate. The thin plate segment can be supported by the main beam and the supporting beam, and support is provided during the turning-over operation to meet the requirement of the cruise thin plate thin segment turning-over operation, the deformation of a construction product is controlled within a required range during the turning-over operation, and meanwhile, the welding number of reinforcement materials is effectively reduced.