An extremely energetic cosmic ray observed by a surface detector array.

Cosmic rays are energetic charged particles from extraterrestrial sources, with the highest-energy events thought to come from extragalactic sources. Their arrival is infrequent, so detection requires instruments with large collecting areas. In this work, we report the detection of an extremely energetic particle recorded by the surface detector array of the Telescope Array experiment. We calculate the particle's energy as [Formula: see text] (~40 joules). Its arrival direction points back to a void in the large-scale structure of the Universe. Possible explanations include a large deflection by the foreground magnetic field, an unidentified source in the local extragalactic neighborhood, or an incomplete knowledge of particle physics.

[Hydronephrosis as a complication of appendicitis: a case report].

A case of right hydronephrosis as a complication of appendicitis is reported. The patient was a 63-year-old male, whose chief complaints were pollakisuria and dysuria. Roentgenographic examination revealed right hydronephrosis due to stenosis of right lower ureter and intrapelvic tumor at the right side. Exploration revealed an abscess in the pelvic cavity, and pathologic examination disclosed periappendiceal perforation and an old inflamed appendix. A review of the literature revealed that it is difficult to diagnose the appendicitis without typical symptoms.

A simple modification using the appendix as efferent limb in ileocolonic reservoir (Mainz pouch).

The appendix was used as an efferent limb of the ileocolonic pouch (Mainz pouch) in two patients who underwent radical cystectomy for invasive bladder cancer. The pouch has a low pressure character and sufficient capacity as well as complete continence. This procedure is relatively simple to perform and considered to be a useful modification of ileocolonic pouch.

[Clinical statistics on outpatients, inpatients and operations in 1986].

Statistical studies were made on 1,637 outpatients, 568 inpatients and 563 operative procedures at our department in 1986. The most frequent diseases among the outpatients were urogenital infections followed by anomalies, tumors and stones. The major diseases among the inpatients were hypospadias, vesicoureteral reflux, benign prostatic hypertrophy, bladder tumor and congenital urethral stenosis. A total of 563 operations were performed. The five major operations were hypospadia repair, optic internal urethrotomy, transurethral resection of prostate, ureterocystoneostomy and percutaneous nephrolithotripsy.

[Clinical statistics on outpatients, inpatients and operations in 1985].

Statistical studies were made on 1,795 outpatients, 528 inpatients and 518 operative procedures at our department in 1985. The most frequent diseases among the outpatients were urogenital infections followed by anomalies, stones and tumors. The major diseases among the inpatients were hypospadias, vesicoureteral reflux, congenital urethral stenosis, bladder tumor and benign prostatic hypertrophy. A total of 518 operations were performed. The five major operations were optic internal urethrotomy, hypospadias repair, ureterocystoneostomy, and transurethral resection of prostate and of bladder tumors.