Drosophila paulistorum Dobzhansky and Pavan is a superspecies which consists of at least five races or incipient species, living in tropical Central and South America (DOBZHANSKY and SPASSKY 1959; DOBZHANSKY, EHRMAN, PAVLOVSKY and SPASSKY 1964). An ethological (sexual) isolation and a sterility of hybrid males impede the gene exchange between the incipient species. Although the ethological isol...

micropapillary variant of urothelial carcinoma (uc) of the bladder is an aggressive tumour, comprising 0.6-6% of all uc. it generally presents with high-grade and stage, and has been reported as having a worse prognosis when compared to traditional uc. we report the case of a 58-year-old man who presented with macroscopic haematuria. the patient was diagnosed with high-grade urothelial carcinom...

Biplane left ventricular angiography was performed in 22 patients with isolated obstructive disease of the anterior descending branch of the left coronary artery and with an anterior aneurysm following transmural myocardial infarction. Six patients were restudied between 6 and 10 months after aneurysmectomy. Left ventricular reserve was estimated by analysis of a spontaneous postextrasystolic b...

The purpose of the study was to explore relationships between caregiver holding and feeding behaviors and the transitional newborn infant's cortisol response. Behaviors of 46 mothers, fathers, and their term transitional newborn infants were measured with the Index of Mother-Infant Separation (IMIS). Repeated measures of infant salivary cortisol were used to calculate area under the curve. A hi...

this is a case report concerning a 60 years old man who lived for a short period in an endemic area of khuzestan province (neighboring province of persian gulf in iran) for approximately 20 years ago. recently he referred to the urology department of kerman university of medical sciences with hematuria and dysuria. in the sonography a polypoid mass on the bladder floor was observed. in the cyst...

BACKGROUND Among hospitalized older adults who transfer to skilled nursing facilities (SNF) for short stays and subsequently transfer to home, twenty two percent require additional emergency department or hospital care within 30 days. Transitional care services, that provide continuity and coordination of care as older adults transition between settings of care, decrease complications during tr...

There have been some reports of coincidental presentation of breast carcinoma and phyllodes tumor in the same breast. Most of the cases were carcinoma that arose from a phyllodes tumor with a histologically identified transitional area, and they behaved less aggressively than the usually encountered carcinoma. Collision tumors are rare clinical entities in which two histologically distinct tumo...

Transitional immature B cells undergo apoptosis and fail to proliferate in response to BCR cross-linking, thus representing a target for negative selection of potentially autoreactive B cells in vivo. In agreement with recent reports, transitional B cells were divided into developmentally contiguous subsets based on their surface expression of CD23. When transferred, CD23(+) transitional B cell...

BACKGROUND The 3D structure of the atrioventricular conduction axis incorporating detailed cellular and molecular composition, especially that relating to gap-junctional proteins, is still unclear, impeding mechanistic understanding of cardiac rhythmic disorders. METHODS AND RESULTS A 3D model of the rabbit atrioventricular conduction axis was reconstructed by combining histological and immun...