منابع مشابه
Deep secrets
be hypothesised that adaptation to pollinators has been a driving force behind the diversification of some of the major elements of the southern African flora, " Johnson writes. Southern African flowers are known to be attractive to a range of species from long-probscid flies, oil-bees, hawkmoths, butterflies, birds and rodents. Many of these pollination interactions have been characterised in ...
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-Evidence is presented that microscopic tumours (of a transplantable murine mammary carcinoma, M8013X) grow faster than larger, palpable, tumours. Microscopic tumours are also more radiosensitive than larger tumours. The decrease in radiosensitivity in larger tumours is prevented to a large extent by misonidazole, which has no significant effect on the radiosensitivity of microscopic tumours. T...
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As a student of anesthesia, I often find myself browsing the local medical bookstore for new and informative anesthesia texts; texts that are not only concise in the review of subject matter, but that also offer the advantage of being pleasurable to read. In December of 1995, while studying for my preparatory oral exams, I overheard a few ofmy colleagues discussing a new anesthesia text, a text...
متن کاملSelenium secrets.
It has been suggested that the size of the nuclei of epithelial basal cells can be used in predicting the likelihood of malignant transformation of epithelium. This proposition was assessed in rat palatal epithelium after the carcinogen 4-nitroquinoline-1-oxide had been applied to the epithelium for varying periods of time. No consistent alterations in basal cell nuclear size, including area, p...
متن کاملUnconscious secrets
I am sometimes asked where I find the material that goes into these columns and whether it is difficult to write something new every month. When I started it was easy because I had a large stock of material accumulated over many years during which I did not write columns. And, yes it is becoming increasingly difficult as the stock has dwindled with the passage of time. I am always on the lookou...
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ژورنال
عنوان ژورنال: Protoplasma
سال: 2019
ISSN: 0033-183X,1615-6102
DOI: 10.1007/s00709-019-01399-7