X-ray Photographs of Pharyngeal Pouches in Three Patients, Aged Respectively 55, 54 and 63
نویسندگان
چکیده
منابع مشابه
X-Ray Photographs as Pictures
that refraction by a lens is not indispensable to the formation of a photographic image. The effective range of fluorescent and actinic X-rays is limited to two or three feet, and for this distance from a camera a "pinhole" in a metal disc does quite as well in ordinary photography as any lens or combination of lenses, so far as pictorial effect and clearness are concerned, provided the exposur...
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چکیده ندارد.
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We have obtained a 20 ks observation of PSR 0355+54 using the ROSAT PSPC. The pulsar is detected with a count rate of 4:2(1:3) 10 ?3 s ?1 above the background. While the 70 source counts are insuucient for spectral tting, we have derived source parameters for speciic cases of power law as well as blackbody spectra. For a Crab-like spectrum (photon index = 2) we nd L x (0:1 ? 2:4 keV) = 1:0 10 3...
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The pharyngeal arches form the face and neck of the developing embryo. The pharyngeal tissue is divided into distinct arches by the formation of clefts and pouches in between the arches. These clefts and pouches form at the juxtaposition between the ectoderm and endoderm and develop into a variety of essential structures, such as the ear drum, and glands such as the thymus and parathyroids. How...
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ژورنال
عنوان ژورنال: Proceedings of the Royal Society of Medicine
سال: 1914
ISSN: 0035-9157
DOI: 10.1177/0035915714007007114