(1) Macroscopic elastic moduli governing the incremental deformations of lung parenchyma are calculated on the basis of a model for an individual lung element in the shape of a regular dodecahedron.
(2) The appearance of the truncated and wild-type E2p was also very similar, as observed by negative-stain electron microscopy, namely, a pentagonal dodecahedron.
(3) Indeed, the cube can be derived from a pentagonal dodecahedron by removing 12 of the 20 triskelions with only slight adjustment of the legs of the remaining triskelions.
(4) Predictions based on the analysis of the 3-D isotropic dodecahedron are in good agreement with experimental values for the Young's, shear, and bulk moduli reported in the literature.
(5) The second type of crystal (not observed in serial sections) is found compatible with a rhomb-dodecahedron which indexes on a cubic cell with a equal to 9.6 nm.
(6) This paper describes a method for the rapid searching of rotational three-dimensional space, relying on the symmetries of the regular icosahedron and dodecahedron.
(7) The tether linking E1 to the core involves the hinge sequence located between the E1-binding and catalytic domains in the primary sequence of E2, whereas the tether linking E3 is probably derived from a similar hinge-type sequence in component X. Tilting of the E2-based cores and comparison with model structures confirmed that their overall shape is that of a pentagonal dodecahedron.
(8) Elastic stiffness within the element is provided by pin-jointed tension members along the edges of the dodecahedron, surface tension is incorporated into its pentagonal faces, and the influence of transpulmonary pressure is simulated by an externally applied hydrostatic tension.
(9) The potential types of sections through the regular dodecahedron, i.e., a twelve-sided shape with faces consisting of pentagons, seemed to fit best with present findings, and this is suggested as an idealized configuration that might be useful in various geometric determinations, e.g., estimates of alveolar surface area and volume.
(10) The localization of the structural protein, by labeling with periodate-oxidized glycoprotein, supported the hypothesis that 60 molecules of p49 aggregated into a dodecahedron (12 pentamers), whereas the two other proteins (p59 and p69) might have a stabilizing function and were localized on the outer surface of the p49 dodecahedron.
(11) Tilting experiments and rotational image analysis indicated that the iscoms were composed of 20 morphological subunits assembled in a pentagonal dodecahedron with a hole on each of the 12 pentagonal faces.
(12) The pentagonal dodecahedron-shaped macromolecule has a maximum diameter, as measured along the 3-fold axis, of approximately 226 A (frozen-hydrated value), and 12 large openings (approximately 63 A in diameter) on the 5-fold axes that lead into a large solvent-accessible cavity (approximately 76-140 A diameter).
(13) It is coordinated to Asp15 carboxylate and to six water molecules forming a dodecahedron of square antiprismatic form.
(14) It was composed of 12 pentons (vertex capsomers plus projections) aggregated into the form of a pentagonal dodecahedron.
Twelve
Definition:
(a.) One more that eleven; two and ten; twice six; a dozen.
(n.) The number next following eleven; the sum of ten and two, or of twice six; twelve units or objects; a dozen.
(n.) A symbol representing twelve units, as 12, or xii.
Example Sentences:
(1) Twelve families with Wiskott-Aldrich syndrome (WAS) were studied by linkage analysis using 10 polymorphic marker loci from the X-chromosome pericentromeric region.
(2) Twelve patients with South American mococutaneous leishmaniasis who attended the Hospital Amazonico in Peru between February and September 1974 were treated with amphotericin B.
(3) Even so, amputation of fifteen extremities and four other major excisions were required in twelve patients.
(4) One hundred and twelve dogs, including twenty C3-deficient dogs, were studied over a period of 6 years.
(5) Buserelin and Flutamide were administered three times daily, intranasally and orally respectively, at a dose of 1.2 mg and 750 mg for twelve months.
(6) The fine needle aspiration cytology features of twelve peripherally located bronchioloalveolar cell carcinomas of the lung diagnosed by fine needle aspiration biopsy are described.
(7) For a better understanding of the cytochrome P-450 mediated reactions, we studied the metabolism of midazolam in microsomal fractions prepared from twelve human livers.
(8) Twelve strains of the Crimean hemorrhagic fever (CHF)-Congo group of viruses the Bunyaviridae family were investigated with respect to sensitivity to lipid solvents and temperature, pathogenicity for animals, interactions with cell cultures and antigenic relationships.
(9) Twelve patients had normal hemodynamic data (group 1), nine had abnormal hemodynamic data only during exercise (group 2), and 11 had abnormal hemodynamic data at rest and during exercise (group 3).
(10) Twelve monkeys, Macaca fascicularis and Macaca mulatta, were investigated to study their renal microvasculature.
(11) Twelve mutations were searched for using classical techniques of molecular biology in a total of 126 patients.
(12) This paper describes a teaching process in which two 4th year medical students learn a family approach to problem solving during a short clerkship of twelve hours spread over four weekly sessions.
(13) Twelve healthy rabbits, in three similar subgroups, were exposed to pathogenic Escherichia coli and their immune response was studied under different experimental conditions.
(14) Twelve patients (group 1), all with coronary artery disease, produced myocardial lactate during pacing.
(15) Twelve weeks after withdrawal heart rate and blood pressure responses to mental stress were normalized.
(16) Twelve healthy volunteers were given single oral doses of bisoprolol 5 mg, 10 mg and 20 mg and atenolol 50 mg and 100 mg in a randomised, placebo-controlled study.
(17) Twelve young male smokers each participated in four conditions on 4 separate days: stress + nicotine, stress + placebo (stress alone), rest + nicotine (nicotine alone), and rest + placebo.
(18) Twelve subjects each received multiple doses of 150, 200, 250, and 300 mg of moricizine every 8 hours during 7 days of treatment.
(19) Twelve donor sites in 10 patients were observed in detail to assess the usefulness of this material.
(20) The efficacy of three different therapeutic regimes was studied in one group by the application of the drug to the entire skin for either five minutes, fifteen minutes, or twelve hours for eighteen days.