(a.) Partaking of the nature of calcite or calcium carbonate; consisting of, or containing, calcium carbonate or carbonate of lime.
Example Sentences:
(1) The following signs in the preoperative radiographs were predictive of unfavorable outcome: small head fragment, comminution of the calcar femorale, and varus angulation of the head.
(2) To insert the new stem we had to reconstruct the proximal femur and the calcar region by autogenous cortico-cancellous bone grafts in seven cases.
(3) At present, we insist on the unexpected relationship between diabetes mellitus and undernutrition either in some major infantile forms (described in India and Nigeria) with calcareous pancreatitis, or some less severe forms observed in Africa.
(4) Middle-aged patients and men were more prone to develop resorption of the calcar.
(5) Serial sections of 90 Sprague-Dawley rat brains with the pineal in situ were scanned to determine the occurrence and regional distribution of calcareous concretions within the pineal gland and its surrounding leptomeningeal tissue.
(6) The collar of the BBM transfers stress to the calcar.
(7) The girdle epidermis of adult Mopalia muscosa secretes several types of structures, including calcareous spicules and innervated hairs.
(8) In order to define the anatomy of the calcar femorale, a radiologic and surgical study was done on ten paired cadaver femurs.
(9) Thirty-four (42 per cent) had more than three millimeters of resorption of the calcar or superomedial cyst formation.
(10) A massive decrease in stress in the region of the calcar femorale was found when the implants were in place, and it was concluded that this decrease could contribute substantially to the calcar femorale resorption sometimes observed in patients after total hip replacement.
(11) Ratios of the stem, stem tip, greater trochanter, lesser trochanter and calcar, and normal femur to the reference sacroiliac joint were obtained, as well as tip-to-stem, and stem-to-normal femur in unilateral arthroplasties.
(12) The plate tensile strain increased by 360% while the compressive calcar strain decreased 85%.
(13) Sufficient cementation of the medullary canal significantly reduced the incidence of calcar resorption, as did neutral and valgus positioning of the femoral component.
(14) Comparison of our data with those of others indicated that the incidence of loosening, calcar resorption, and cortical hypertrophy was usually lower than with similarly designed conventional high-modulus Charnley stems.
(15) X-ray diffraction showed that calcite (CaCO3) was the major crystalline constituent of the calcareous deposits.
(16) In the region of the calcar femorale, crossing trabeculae, similar to the appearance of an enchondroma or bone infarct, have been described in osteoporosis and osteoarthritis and probably represent unmasking of normally present reinforcing trabeculae.
(17) The splitting of several calcareous nodules on a valve made it more pliable.
(18) The 4 modes of failure characterizing stem-type component progressive loosening mechanisms consisted of stem pistoning within the acrylic (3.3%), cement-embedded stem pistoning with the femur (5.1%), medial midstem pivot (2.5%), calcar pivot (0.7%) and bending (fatigue) cantilever (3.3%).
(19) Calcareous corpuscles are smaller and more numerous in the scolex and neck than in the cyst wall.
(20) If this intermenstrual bleeding appears at a certain time after the insertion of the intrauterine device, either there is a calcareous deposit, or the device has shifted, or there is an infection.
Tufa
Definition:
() A soft or porous stone formed by depositions from water, usually calcareous; -- called also calcareous tufa.
() A friable volcanic rock or conglomerate, formed of consolidated cinders, or scoria.
Example Sentences:
(1) A trend towards a higher G+C content in fusA (gene encoding elongation factor (EF)-G) and tufA (gene encoding EF-Tu) in S. typhimurium is noted.
(2) The combination of tufA(Aa) and a rpsD12 ribosomal mutation is lethal at room temperature and the double-mutant strain has an elevated temperature optimum (42 degrees C) for growth rate, translation rate and nonsense suppression.
(3) Furthermore, the tufA mutation enhances the cellular growth rate of the rpsL mutant, whereas it decreases growth of strains with normal ribosomes.
(4) Previous work suggested that the tufA gene, encoding protein synthesis elongation factor Tu, was transferred from the chloroplast to the nucleus within the green algal lineage giving rise to land plants.
(5) The observations that introduction of a tufA(+) region makes the resistant strain sensitive to the antibiotic and that transduction of tufB1 into a recipient other than E. coli D22 yields kirromycin-sensitive progeny support these conclusions.
(6) Potential ribosome binding sites are located 58 and 32 positions upstream of the tufA and ORF206 start codon, respectively.
(7) We have replaced the ribosomal binding site (RBS) of the lacZ gene of E. coli by those of the maturation (A) gene of phage MS2 and that of the tufA gene.
(8) By examining heteroduplexes between restriction endonuclease-generated fragments of DNA containing the tufA, fus, and tufB genes, we have demonstrated that the fus and tufA genes are intimately related physically in one of two possible arrangements.
(9) The proof for the presence of tufA gene in pTUAl is based on the following observations: (1) ability of pTUAl DNA and is EcoRI fragments to direct synthesis of EF-Tu in a cell-free protein synthesizing system; and (2) RNA .
(10) It thus became possible to study the consequences for growth of tufA inactivation by insertion of bacteriophage Mu.
(11) Genetic data suggest that pTu is the product of the tufA and tufB genes.
(12) Therefore, phenotypic expression of kirromycin resistance in vivo appears to be only possible if the EF-Tu mutant lacks an active tufA gene, a property likely to be inherited from the parental D22 strain.
(13) Facebook Twitter Pinterest Juvenile hart’s tongues, among mosses embedded in tufa.
(14) Sequence analysis revealed an ORF of 99 amino acids (including the N-terminal processed methionine) at a position 477 bp from the 3' end of tufA but on the opposite strand.
(15) We conclude the following: (a) The tufA and tufB messengers have different half lives (3.0 and 2.4 min, respectively).
(16) Filter hybridizations reveal a chloroplast tufA gene in all Ulvophyceae and Chlorophyceae and in some but not all Charophyceae.
(17) The G domain of elongation factor Tu (EF-Tu), representing the N-terminal half of the factor according to its three-dimensional model traced at high resolution, has been isolated by genetic manipulation of tufA and purified to homogeneity.
(18) The water is sharply alkaline, with a pH value of over nine, and thanks in part to the water's purity – no phosphates here – the formation of tufa continues on the Lathkill when it has ceased on most other rivers.
(19) The tufA gene, one of two genes in Escherichia coli encoding elongation factor Tu (EF-Tu), was cloned into a ColE1-derived plasmid downstream of the lac promoter-operator.
(20) A deletion mutant of a plasmid born Escherichia coli tufA gene, which codes for a truncated elongation factor Tu comprising domains 2 and 3, has been constructed by genetic engineering.