(1) In addition to the phase diagrams reported here for these two binary mixtures, a brief theoretical discussion is given of other possible phase diagrams that may be appropriate to other lipid mixtures with particular consideration given to the problem of crystalline phases of different structures and the possible occurrence of second-order phase transitions in these mixtures.
(2) In 0.17 M Na+(aq), tRNA(Phe) exists in its native conformation and the number of strong binding sites (Ka greater than or equal to 10(4)) was estimated to be 3-4 by titration experiments, in agreement with X-ray structural data for crystalline tRNA(Phe) (Jack et al., 1977).
(3) Electron microscopy revealed the presence of a hitherto unreported peculiar "pilovacuolar" inclusion in numerous mitochondria, composed of an electron dense pile or rod within a vacuole, while globular or crystalline inclusions were absent.
(4) The advantages of the incision through the pars plana ciliaris are (1) easier approach to the vitreous cavity, (2) preservation of the crystalline lens and an intact iris, and (3) circumvention of the corneal and chamber angle complications sometimes associated with the transcorneal approach.
(5) These two crystallins were compared with respect to their native molecular masses, subunit structures, peptide mapping and amino acid compositions in order to establish the identity of each crystallin.
(6) Freeze-dried mannitol preparations were shown to be of a crystalline nature.
(7) Antigenic properties of crystalline pepsin, trypsin and chymotrypsin were studied in 9 rabbits immunised with these enzymes.
(8) X-ray diffraction spectrum of 1:8 coprecipitate (COPPT) showed no crystalline structure of AD.
(9) However, significant differences in the formation and melting of the highly crystalline phase were evident between the two polar headgroup stereoisomers.
(10) Degradation studies of the crystalline antibiotic, m.p.
(11) Crystalline derivatives of the amino sugar i. e. methyleremosaminide and methyl-N,O-acetyleremosaminide (alpha- and beta-anomers) were prepared.
(12) A systematic structural comparison of several carp gamma-crystallins with high methionine contents was made by the secondary-structure prediction together with computer model-building based on the established X-ray structure of calf gamma-II crystallin.
(13) The lens cell-free system synthesizes in addition to the crystallins, polypeptides which co-electrophorese with lens plasma membrane protein components.
(14) Arrhenius plots of the leakage rates showed breaks in the 20-25 degrees C temperature range, which correspond to the gel-liquid crystalline phase transition of the target liposomes.
(15) These results suggest that ATP modulates the functional behavior of alpha-crystallin.
(16) Because anesthetics transform the solid-gel membrane into a liquid-crystalline state, and because phospholipid membranes display an anomaly in permeability at the phase transition, dimyristoylphosphatidylcholine vesicles were studied at temperatures above the main phase transition to avoid this anomaly.
(17) By monitoring the synthesis of specific lens crystallin proteins, and the morphological and cellular changes associated with this differentiated system, we have demonstrated a close correlation between statin expression and cell commitment to the G0 nonreplicative cell cycle state.
(18) Developmental regulation of crystallin protein synthesis was observed in rat lenses between embryonic day 19 and postnatal day 21.
(19) Bovine lens calf gamma-II crystallin contains five histidine residues at sequence positions 14, 53, 84, 117, and 122.
(20) A second crystalline material was observed within cells in the 15,000 X g pellet from spinal fluid.
Spicule
Definition:
(n.) A minute, slender granule, or point.
(n.) Same as Spicula.
(n.) Any small calcareous or siliceous body found in the tissues of various invertebrate animals, especially in sponges and in most Alcyonaria.
Example Sentences:
(1) Almost nothing is known about nature and timing of the embryonic cues which induce or initiate spicule formation by these cells.
(2) X-ray examination disclosed a spicule formation surrounding the osteolytic focus in the mandible.
(3) Bone spicule pigmentation increased in 41 of 76 patients for whom we could make comparisons over a three-year interval (54%).
(4) In morphology it is similar to D. bargusinica Skrjabin 1917, D. campanae Anderson 1959, D. dollfusi Anderson 1959, and D. epsilon Johnston and Mawson 1940, but can be separated from these species by combinations of trident size and spicule size and morphology.
(5) Characteristics features of this species (only males were found) are the small size of body, size and type of spicules, shape of tail and arrangement of caudal papillae.
(6) Two different types of spicules in male Enterobius were also observed in Korea.
(7) The border was assessed for a smooth, irregular, or spiculated margin.
(8) The authors had under observation 21 patients with diastematomyelia--a rare congenital disease marked by the formation of a bony spicule in the vertebral canal, which splits the spinal cord and its meninges.
(9) In both studies, the poikilocytes were identified as echinocytes, spiculated erythrocytes, and schizocytes.
(10) The girdle epidermis of adult Mopalia muscosa secretes several types of structures, including calcareous spicules and innervated hairs.
(11) Deposits consisted of dense aggregations of randomly entangled spicules spreading within bundles of collagen fibrils.
(12) From the above results, it was evident that both the matrix vesicles derived from functioning osteoblast, and the vesicular structures derived from the degenerated or dead cells concurrently phagocytosing spicules and collagen fibrils were involved in the initial calcification process of the membranous bone in vitro.
(13) We present the first two cases of vertebral metastases from prostatic carcinoma with spicule formation giving rise to osseous spinal stenosis and neurological deficits, best demonstrated by CT.
(14) Their dendrites also bear fine spicules and usually reach the tectal surface.
(15) Methylmercuric chloride produced an irregularity of cell shape with spicules including the final stage of spherocytes.
(16) Three male siblings, born of nonconsanguineous parents, manifested the characteristic paravenous bone spicule accumulation typically seen in pigmented paravenous chorioretinal atrophy.
(17) They differ from D. ramachandrani in their location in the host, the tail length, the shape of the spicules, and in the number of caudal papillae.
(18) At the same time the red cells became crenated and developed thorny spicules (echinocytes).
(19) We believe that these spicules correspond to the reorganization of the stroma along the edges of the corneal incision.
(20) Despite the variability of some characters such as length of tail and spicules, arrangment of caudal papillae, these species are well characterized by a set of elements, the two most important of which are the female cuticle and the anatomy of the microfilariae.