OBJECTIVES To observe the phenomenon of human ejaculation dynamically using color Doppler ultrasonography. METHODS Human ejaculation was observed using transrectal color Doppler ultrasonography in a healthy man and a patient with retrograde ejaculation. Ejaculation was induced manually with audiovisual sexual stimulation. The ejaculatory phenomenon was analyzed and compared with that of retro...

Introduction: Comet Wild-2 samples collected by NASA's Stardust mission are extremely complex, heterogeneous , and have experienced wide ranges of alteration during the capture process. There are two major types of track morphologies: " carrot " and " bulbous , " that reflect different structural/compositional properties of the impactors. Carrot type tracks are typically produced by compact or ...

The retina of the pearl mutant mouse, C57BL/6J pe/pe, exhibits reduced light sensitivity in the dark-adapted condition (Balkema and Pinto, J Neurophysiol 48:968, 1982). The authors searched for an anatomic correlate in the retina which could relate to the functional deficit. Electron microscopic mosaics of the outer plexiform layer of light- and dark-adapted pearl and wild-type mice were analyz...

Euryhaliotrema russellum sp. n. and Euryhaliotrema tenuiaccessorium sp. n. are described from the gills of Lutjanus russellii (Bleeker) and L. argentimaculatus (Forsskål), respectively, in the South China Sea. Euryhaliotrema russellum sp. n. differs from all other members of Euryhaliotrema Kritsky et Boeger, 2002 by its unique male copulatory organ, a straight tube with a bulbous base and witho...

A woman was referred to an orthopedic surgeon with a complaint of vague deep-seated pain in her right knee, which had been ongoing for a period of 3 months. There was no history of a specific inciting traumatic event. Physical examination of her knee revealed no specific signs of internal derangement, and plain radiographs were unremarkable. The patient was referred for an MRI examination. T1-w...

To reduce the ship wave-making resistance, the lines of the bulbous bow of a hull are optimized by an automatic optimization platform at the ship design stage. Parametric modeling was applied to the hull by using non-uniform rational basis spline (NURBS). The Rankine-source panel method was used to calculate the wave-making resistance. A hybrid optimization strategy was applied to achieve the o...

tuberose (polianthes tuberosa l.) is one of the most important bulbous ornamental crops of tropical and subtropical areas. the objective of the present study was to determine the interaction effects of salinity and irrigation intervals on growth and flowering of two important commercial cultivars (‘mahallati’ and ‘dezfuli’) of tuberose (polianthes tuberosa l.). irrigation treatments consisted o...

Tulip is one of the most important bulbous genera in world’s floriculture. It known that cold exposure bulbs before planting required to break bulb dormancy and promote plant’s flowering. Preparation procedures performed by breeders differ duration thermal level, choice procedure depends on genotype’s sensitivity temperature; however, little about metabolic responses underlying different behavi...