منابع مشابه
Spiral organisms in endoscopic biopsies of the human stomach
A retrospective light microscopic study of 310 consecutive endoscopic gastric biopsy specimens was performed. Spiral bacteria were found in 42% of cases and, apart from occasional organisms in parietal cell canaliculi, were confined to the surface of the glands and epithelium. Electron microscopic study of selected cases showed the bacteria to be approximately 6 ,m maximum length and 0-7 ,um di...
متن کاملSpiral organisms in endoscopic biopsies of the human stomach.
A retrospective light microscopic study of 310 consecutive endoscopic gastric biopsy specimens was performed. Spiral bacteria were found in 42% of cases and, apart from occasional organisms in parietal cell canaliculi, were confined to the surface of the glands and epithelium. Electron microscopic study of selected cases showed the bacteria to be approximately 6 micron maximum length and 0.7 mi...
متن کاملBoring Banks and Taxes
How do taxes in the financial sector affect economic outcomes? We analyze a simple general equilibrium model with financial intermediation. We formalize a trade-off between tax policies that burden the owners of banks and tax policies that burden households. We also study the implications of the financial sector’s exemption from value added taxation (VAT). Main results are that an increased tax...
متن کاملBoring algae
and an increased chlorophyll b to chlorophyll a ratio for better light capture in low light. Furthermore, an Ostreobium strain living in a coral skeleton, where nearly all of the red light has been captured by the zooxanthellae in the coral tissue, has been shown to have modified chlorophyll with a spectrum shifted towards far-red wavelengths. As zooxanthellae cannot use far-red light, more of ...
متن کاملBoring Split Links and Unknots
Boring is an operation which converts a knot or two-component link in a 3–manifold into another knot or two-component link. It generalizes rational tangle replacement and can be described as a type of 2–handle attachment. Sutured manifold theory is used to find lower bounds for the genus of knots obtained by boring split links and unknots. Bounds on the euler characteristic of essential planar ...
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ژورنال
عنوان ژورنال: Geological Magazine
سال: 1936
ISSN: 0016-7568,1469-5081
DOI: 10.1017/s0016756800087367