Vestibularly and visually driven eye movements interact to compensate for head movements to maintain the necessary retinal image stability for clear vision. The wearing of highly magnifying telescopic spectacles requires that such compensatory visual-vestibular interaction operate in a quantitative regime much more demanding than that normally encountered. We employed electro-oculography to inv...

delta-Aminolevulinic acid and trimethylisobacteriochlorin are converted by cell-free protein preparations from Pseudomonas denitrificans into a metal-free pigment, precorrin-6x. This pigment, which accumulates when the cell-free system lacks NADPH, can be enzymically converted in high yield (greater than 50%) into hydrogenobyrinic acid by the complete enzyme preparation. Double-labeling experim...

Polyploidization plays an important role in species formation as chromosome doubling results in strong reproductive isolation between derivative and parental taxa. In this note I describe a new species, Mimulus peregrinus (Phrymaceae), which represents the first recorded instance of a new British polyploid species of Mimulus (2n = 6x = 92) that has arisen since the introduction of this genus in...

In the cooperative study AML-IGCI-84 27 children with AML (FAB M1 7X, M2 4X, M3 1X, M4 6X and M5 8X; 1 megakaryocytic leukemia) have been treated. The median initial white blood cell count was 18.0 G/l (range 1.8-1,350.0 G/l). 1 or 2 courses of induction therapy were used: I1 (aclacinomycin-A (ACLA-A), VP-16 and ARA-C) and I2 (daunorubicin (DNR), VP-16, and ARA-C). I2 was used only if bone marr...

The Italian endemic vascular flora is composed of 1,286 specific and subspecific taxa. From the critical analysis of "Chrobase.it", 711 of them (about 55%) have been studied from a karyological point of view. These taxa belong to 52 out of 56 families and 204 out of 284 genera. These data suggest that endemic species are more studied than the flora as a whole. Mean chromosome number for Italian...

Vaccinium meridionale (section Pyxothamnus ), a tetraploid species native to higher altitude locations in Jamaica, Colombia, and Venezuela, is of interest breeders for its profuse, concentrated springtime flowering monopodial plant structure, both which may be useful breeding mechanical harvest. In this study, V. was hybridized successfully as male with 4 x macrocarpon Oxycoccos , American cran...

BACKGROUND Vacc-4x, a Gag p24-based therapeutic HIV vaccine, has been shown to reduce viral load set-points after intradermal administration. In this randomized controlled pilot study we investigate intranasal administration of Vacc-4x with Endocine as adjuvant. METHODS Safety and immunogenicity were tested in patients on effective ART. They were randomized to low, medium or high dose Vacc-4x...

The genus Brachiaria comprises more than 100 species and is the single most important genus of forage grass in the tropics. Brachiaria brizantha, widely used in Brazilian pastures for beef and dairy production, is native to tropical Africa. As a subsidy to the breeding program underway in Brazil, cytological studies were employed to determine the chromosome number and to evaluate microspo...