(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.
Sclerenchyma
Definition:
(n.) Vegetable tissue composed of short cells with thickened or hardened walls, as in nutshells and the gritty parts of a pear. See Sclerotic.
(n.) The hard calcareous deposit in the tissues of Anthozoa, constituting the stony corals.
Example Sentences:
(1) The parenchyma located close to the sclerenchyma became indigestible as the cell walls lignified progressively from the third stage.
(2) During normal development of roots and leaves, the expression of the gene was transient and particularly high in regions initiating vascular elements and associated sclerenchyma.
(3) Many characters of leaf (hair, hypodermal cells, palisade layers, intercellular space, distinction between spongy and palisade parenchyma, "palisade ratio", distribution of collenchyma and sclerenchyma, presence or absence of starch grains, calcium oxalate crystals, number, shape and arrangement of bundles of petiole) are useful distinguishing characters.
(4) In mixed culture, both species adhered in significant numbers to the cut edges of most types of plant cell wall, but R. flavefaciens predominated on the epidermis, phloem, and sclerenchyma cell walls.
(5) The walls of the sclerenchyma of the treated straw were attacked by micro-organisms.
(6) Both treated and normal straw were abundantly colonized by rumen fungi, especially in the sclerenchyma.
(7) Zones of digestion were observed around bacteria of both species when attached to the lignified cell walls of the sclerenchyma, but not when attached to the lignified xylem vessels.
(8) Quantitation of tissue areas in cross sections by light microscopic techniques showed that fungal incubations resulted in significant (P = 0.05) increases in sclerenchyma degradation compared to whole ruminal fluid incubations.
(9) They also had a stronger reaction to Schiff reagent particularly in the sclerenchyma indicating that their polysaccharides were more accessible.
(10) Ryegrass stems were digested more slowly than lucerne stems, and the sclerenchyma and xylem of ryegrass were indigestible whatever the stage.
(11) Mixed ruminal fungi in selective cultures or in digesta taken directly from the rumen produced a massive clearing of the sclerenchyma.
(12) A rapid reaction of the acid-phloroglucin with lignin produced a deep red color in tracheary elements and an orange-red color in sclerenchyma.
(13) The abundant astrosclereids stained an orange-red color similar to that of sclerenchyma in the sections.
(14) In addition, high expression was observed in sclerenchyma and in the root cortex.
(15) The mestome cell wall was at times penetrated and partially degraded by fungi; the colonization was less frequent and to a lesser degree than with the sclerenchyma.