منابع مشابه
672 Studies on Sulphatases
In the preceding paper (Dodgson & Powell, 1959) it was shown that an arylsulphatase present in the digestive juice and the digestive gland of the edible snail exhibited a shift in optimum pH as the concentration of substrate was increased. This paper describes the partial purification of the digestivegland enzyme and provides further evidence that the shift in optimum pH is not due to the prese...
متن کاملOp-molb130252 660..672
To establish which meiosis genes are present in ciliates, and to look for clues as to which recombination pathways may be treaded by them, four genomes were inventoried for 11 meiosis-specific and 40 meiosis-related genes. We found that the set of meiosis genes shared by Tetrahymena thermophila, Paramecium tetraurelia, Ichthyophthirius multifiliis, and Oxytricha trifallax is consistent with the...
متن کاملDev120279 672..680
Blood vessels serve as key regulators of organogenesis by providing oxygen, nutrients and molecular signals. During limb development, programmed cell death (PCD) contributes to separation of the digits. Interestingly, prior to the onset of PCD, the autopod vasculature undergoes extensive patterning that results in high interdigital vascularity. Here, we show that in mice, the limb vasculature p...
متن کاملC3em00615h 672..696
This work presents a critical assessment of the state and quality of knowledge around the aquatic photochemistry of humanand veterinary-use pharmaceuticals from laboratory experiments and field observations. A standardized scoring rubric was used to assess relevant studies within four categories: experimental design, laboratory-based direct and indirect photolysis, and field/solar photolysis. S...
متن کاملLucretius, song and music: a historical approach
The Latin poet Titus Lucretius Caro (I century B.C.), speaking of the origins of music in his work De rerum natura, expresses an interesting opinion on the scientific and technological progress that man has attained over the course of time.
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ژورنال
عنوان ژورنال: Philologus
سال: 1854
ISSN: 2196-7008,0031-7985
DOI: 10.1524/phil.1854.9.14.645