hairball in a urethral diverticulum has rarely been reported. these hairballs are usually formed in the diverticulum coated with a hair bearing epithelium and can lead to urinary obstruction or infection. using laser is a safe way to ablate such stones.

The bearing capacity and deformation characteristics of floating stone columns were complicated are not thoroughly understood. In the present study, a series experimental model tests under vertical plate loading was performed. This study investigated influence geogrid encasement on behavior provided valuable insight into load-displacement behavior, bulging deformation, load transfer mechanism, ...

Gabriel Taubin Brown University Holly Rushmeier, who’s served as associate editor in chief (AEIC) for special issues since 2007, has recently been appointed co-editor in chief of Eurographics’ Computer Graphics Forum, effective May 2010. Owing to her increased responsibilities and numerous other commitments, Holly has decided she’ll be unable to continue serving effectively in her current CG&A ...

Abstract The L-type steel column studied here is a special-shaped composed of square pipe and two T-shaped steel, which are connected by weld. Because the columns have better properties than ordinary columns, it may be wildly used in residential structures. Therefore, quite valuable to study bearing capacity stability new columns. Three specimens tested, behaviour deformation, distribution disp...

A Shinro puzzle is a type of deductive reasoning puzzle that originated in Japanese periodicals. To solve the puzzle, one must locate twelve hidden stones on an 8x8 grid using only clues in the form of stone counts per row and column, and arrows placed in the grid that point to some of the hidden stones. Construction of these puzzles by hand is tedious. We explore the use of a simple genetic al...

The use of column-like elements for improving both the settlement performance and bearing capacity foundations constructed over soft soils is well understood large groups columns supporting an infinitely wide load, such as embankments slabs. However, little still lightly loaded, low-rise structures supported by pad on a finite number stone columns, particularly when crust layer present at top s...

Francisco Conde-Valvís’s so-called “stone treasure” is a set of unique carved stone pieces, such as bases, column shafts, mortar, and decorated fragments (trisqueles rosettes), found during the 2018 excavation campaign in Cibdá de Armea (Allariz, Ourense). They had been piled up re-buried—no records existed to where—at western end Finca A Atalaia, which was excavated 1950s under direction Conde...

Abstract. We formulate Lorentz group representations in which ordinary complex numbers are replaced by linear functions of real quaternions and introduce dotted and undotted quaternionic one-dimensional spinors. To extend to parity the space-time transformations, we combine these one-dimensional spinors into bi-dimensional column vectors. From the transformation properties of the two-component ...