Results 261 to 270 of about 91,983 (282)
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Journal of Geometry, 2003
The aim of the paper is to present some recent results on translation ovoids in a homogeneous way. The author uses the relationship between spreads of the projective space PG\((3,q)\) and ovoids of the Klein quadric \(Q^+(5,q)\) as a guideline for the approach to semifield flocks. Having recalled that translation ovoids of an orthogonal polar space \(P\
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The aim of the paper is to present some recent results on translation ovoids in a homogeneous way. The author uses the relationship between spreads of the projective space PG\((3,q)\) and ovoids of the Klein quadric \(Q^+(5,q)\) as a guideline for the approach to semifield flocks. Having recalled that translation ovoids of an orthogonal polar space \(P\
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Ovoid Bodies in Choroidal Neurofibromatosis
Archives of Ophthalmology, 1982We studied the ultrastructure of the ovoid bodies in choroidal neurofibromatosis. Ovoid bodies consisted of groups of the same kind of elongated cells arranged in lamellar patterns. The elongated cell was characterized by a fragmented circumferential basal lamina, groups of pinocytotic vesicles, a desmosomelike intercellular contact, and intimate ...
A, Kurosawa, H, Kurosawa
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Threader for Manchester Ovoids
The British Journal of Radiology, 1961The apparatus has been devised to assist in threading radium ovoids. The operation can be performed from behind a lead screen using long handled forceps, the operator's hands receiving minimal irradiation.
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Canadian Journal of Mathematics, 1982
An ovoid in an orthogonal vector space V of type Ω+(2n, q) or Ω(2n – 1, q) is a set Ω of qn–1 + 1 pairwise non-perpendicular singular points. Ovoids probably do not exist when n > 4 (cf. [12], [6]) and seem to be rare when n = 4. On the other hand, when n = 3 they correspond to affine translation planes of order q2, via the Klein correspondence ...
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An ovoid in an orthogonal vector space V of type Ω+(2n, q) or Ω(2n – 1, q) is a set Ω of qn–1 + 1 pairwise non-perpendicular singular points. Ovoids probably do not exist when n > 4 (cf. [12], [6]) and seem to be rare when n = 4. On the other hand, when n = 3 they correspond to affine translation planes of order q2, via the Klein correspondence ...
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Documentation of Ovoid Cap Size
Medical Dosimetry, 1991The need for precise documentation in radiation oncology is paramount; assurance of the quality of therapy delivered is the responsibility of everyone engaged in the treatment of cancer patients. Although all aspects of quality assurance require meticulous attention to detail, the documentation of brachytherapy procedures, both written dose ...
L, Earley, J, Prows, D D, Leavitt
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On Ovoids of Parabolic Quadrics
Designs, Codes and Cryptography, 2006zbMATH Open Web Interface contents unavailable due to conflicting licenses.
Ball, Simeon +2 more
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Geometriae Dedicata, 1996
The authors nearly settle the existence problem for transversal designs (or, equivalently, orthogonal arrays) with block size 8 or 9 and index \(\lambda> 1\). There are only 52 possible exceptions left. This is the first general theorem since the corresponding result for block size 7 was proved by \textit{Haim Hanani} [On transversal designs ...
Glynn, David Gerald +3 more
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The authors nearly settle the existence problem for transversal designs (or, equivalently, orthogonal arrays) with block size 8 or 9 and index \(\lambda> 1\). There are only 52 possible exceptions left. This is the first general theorem since the corresponding result for block size 7 was proved by \textit{Haim Hanani} [On transversal designs ...
Glynn, David Gerald +3 more
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2016
246. Gamasiphis ovoides Karg, 1993 Gamasiphis ovoides Karg, 1993b: 185. Gamasiphis ovoides.— Castilho et al., 2012a: 1989. Type depository. Arachnologischen Sammlung des Museums für Naturkunde, Berlin, Germany. Type locality and habitat. Poindimié, New Caledonia, 30 January 1977, in litter on a rock.
Castilho, Raphael C. +3 more
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246. Gamasiphis ovoides Karg, 1993 Gamasiphis ovoides Karg, 1993b: 185. Gamasiphis ovoides.— Castilho et al., 2012a: 1989. Type depository. Arachnologischen Sammlung des Museums für Naturkunde, Berlin, Germany. Type locality and habitat. Poindimié, New Caledonia, 30 January 1977, in litter on a rock.
Castilho, Raphael C. +3 more
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