No abstract available.
Pyelonephritis*

No abstract available.
Hydrogen-Ion Concentration* ; Osmolar Concentration* ; Sperm Motility* ; Spermatozoa*

No abstract available.
Calcium Carbonate* ; Calcium* ; Humans ; Renal Dialysis*

A 'circadian rhythm' is a self-sustained biological rhythm (cycle) that repeats itself approximately every 24 hours. Circadian rhythms are generated by an internal clock, or pacemaker, and persist even in the absence of environmental time cues, collectively termed 'zeitgebers.' Although organisms generate circadian rhythms internally, they are entrained by environmental stimuli, particularly the light-dark cycle. Measurement of the endogenous melatonin rhythm provides relatively reliable surrogate way of assessing the timing of the internal circadian clock. Also, core body temperature and cortisol can be used as markers of circadian rhythms. The sleep-wake cycle, body temperature, and melatonin rhythm have a stable internal phase relationship in humans and other diurnal species. They play an important role in controlling daily behavioral rhythms including task performance, blood pressure, and synthesis and secretion of several hormones. In this review, we address not only the properties, methods of measurement, and markers of circadian rhythms, but also the physiological and psychological importance of human circadian rhythms.
Blood Pressure ; Body Temperature ; Circadian Clocks ; Circadian Rhythm* ; Cues ; Humans ; Hydrocortisone ; Melatonin ; Photoperiod ; Task Performance and Analysis

No abstract available.
Congenital Abnormalities* ; Fingers* ; Plastics*

No abstract available.
Low Back Pain* ; Prevalence* ; Risk Factors*

OBJECTIVE: To evaluate the safety and efficacy of the silicone ring pessary in the management of pelvic organ prolapse. METHODS: This study was evaluated for the clinical analysis of 58 pelvic organ prolapse patients who visited our hospital and weared silicone ring pessary from January 1997, to December 1998. RESULTS: Among 58 patients, failure rate was 13.7%(8/58) and complication rate was 50%(29/58). Main causes of failure were vaginal ulcer(4 cases) and recurrent falling out of pessary(3 cases). Most common problems were recurrent falling out of pessary(10 cases) and vaginal erosion with or without ulcer(9 cases), vaginitis(6 cases). There was no significant difference of failure rates and complication rates between hysterectomized patients and the non-hysterectomized patients. CONCLUSION: In management of pelvic organ prolapse which unsuitable for operation, pessary is noninvasive, simple and effective alternative method.
Humans ; Pelvic Organ Prolapse* ; Pessaries* ; Silicones*

The giant cell tumor is a primary. neoplasm of bone characterized histollogically by a vascularized network of plumpish or ovoid stromal cells heavily interposed with multinucleated giant cells. The majority of cases occur in patients between 20 and 40 years old and in the long tubular bones, particuarly in proximity to the epiphysis. A rare case of giant cell tumor involving the patella was recently experienced by authors. Case summary with brief review of reference is presented.
Epiphyses ; Giant Cell Tumors ; Giant Cells ; Humans ; Patella ; Stromal Cells

A survey was done on the participants of the previous education seminar. Eighty two endoscopists from 67 instituties had replied and 50 practitioners replied for a total of l32 that were surveyed and analyzed. (continue...)
Education* ; Endoscopy* ; Korea*

No abstract available.
Esophageal and Gastric Varices* ; Hemorrhage*